diff --git a/week-1/Week-1-assignment-with-tests/01-js/easy/anagram.js b/week-1/Week-1-assignment-with-tests/01-js/easy/anagram.js index fff614278..789a9301b 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/easy/anagram.js +++ b/week-1/Week-1-assignment-with-tests/01-js/easy/anagram.js @@ -8,7 +8,27 @@ */ function isAnagram(str1, str2) { + ///check if both the strings are of same length + ///order it and then use == operator + if (str1.length != str2.length) { + return false; + } + + ///There is no direct method to order so, + str1 = str1.toLowerCase(); + str2 = str2.toLowerCase(); + + + ///split the string into array,sort the array then join the array + str1 = str1.split('').sort().join(''); + str2 = str2.split('').sort().join(''); + + if (str1 == str2) { + return true; + } else { + return false; + } } module.exports = isAnagram; diff --git a/week-1/Week-1-assignment-with-tests/01-js/easy/expenditure-analysis.js b/week-1/Week-1-assignment-with-tests/01-js/easy/expenditure-analysis.js index 20fbb9435..8b10a6ebd 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/easy/expenditure-analysis.js +++ b/week-1/Week-1-assignment-with-tests/01-js/easy/expenditure-analysis.js @@ -9,7 +9,59 @@ */ function calculateTotalSpentByCategory(transactions) { - return []; -} + // var transactions = [ + // { + // id: 1, + // timestamp: 1656076800000, + // price: 10, + // category: 'Food', + // itemName: 'Pizza', + // }, + // { + // id: 2, + // timestamp: 1656259600000, + // price: 20, + // category: 'Food', + // itemName: 'Burger', + // }, + // { + // id: 3, + // timestamp: 1656019200000, + // price: 15, + // category: 'Clothing', + // itemName: 'T-Shirt', + // }, + // { + // id: 4, + // timestamp: 1656364800000, + // price: 30, + // category: 'Electronics', + // itemName: 'Headphones', + // }, + // { + // id: 5, + // timestamp: 1656105600000, + // price: 25, + // category: 'Clothing', + // itemName: 'Jeans', + // }, + // ]; + ///[returnElement] contains{category: 'Food', totalSpent: 30} + var returnElement = []; + + transactions.forEach((traEle) => { + ///go through each and every element in transactions + var elemen = returnElement.find((ele) => (ele.category === traEle.category)); + ///check if that element is present + if (elemen) { + elemen.totalSpent = elemen.totalSpent + traEle.price; + returnElement.push({ category: traEle.category, totalSpent: traEle.price }); + } + }); + + + return returnElement; +} +// calculateTotalSpentByCategory(); module.exports = calculateTotalSpentByCategory; diff --git a/week-1/Week-1-assignment-with-tests/01-js/hard/calculator.js b/week-1/Week-1-assignment-with-tests/01-js/hard/calculator.js index 82d48229a..0cfe216f2 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/hard/calculator.js +++ b/week-1/Week-1-assignment-with-tests/01-js/hard/calculator.js @@ -17,6 +17,40 @@ - `npm run test-calculator` */ -class Calculator {} +class Calculator { + constructor() { + this.result = 0; + } + add(addVar) { + this.result = this.result + addVar; + } + subtract(addVar) { + this.result = this.result - addVar; + } + multiply(addVar) { + this.result = this.result * addVar; + } + divide(addVar) { + if (addVar <= 0) { + throw Error; + } else { + + this.result = this.result / addVar; + } + } + clear() { + this.result = 0; + } + getResult() { + // console.log(this.result); + return this.result; + } +} +var calc = new Calculator(); +// calc.add(12); + +// calc.divide(4); +// calc.getResult(); +// calc.divide(0); module.exports = Calculator; diff --git a/week-1/Week-1-assignment-with-tests/01-js/hard/todo-list.js b/week-1/Week-1-assignment-with-tests/01-js/hard/todo-list.js index 7c9c18064..b3d69e60e 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/hard/todo-list.js +++ b/week-1/Week-1-assignment-with-tests/01-js/hard/todo-list.js @@ -12,7 +12,50 @@ */ class Todo { + constructor() { + this.todoList = []; + } + add(addEle) { + this.todoList = [...this.todoList, addEle]; + } + remove(popInIndex) { + // if (popInIndex >= this.todoList.length) { + // throw (Error); + // } else { + this.todoList = this.todoList.slice(0, popInIndex).concat(this.todoList.slice(popInIndex + 1, this.todoList.length)); + // } + } + update(popInIndex, ele) { + // if (popInIndex < 0 || popInIndex >= this.todoList.length) { + // throw (Error); + // } else { + + this.todoList[popInIndex] = ele; + + // } + } + + getAll() { + return this.todoList; + } + + get(indexOfTodo) { + // if (popInIndex < 0 || popInIndex >= this.todoList.length) { + // throw (Error); + // } else { + return this.todoList[indexOfTodo + 1]; + + + + // } + + } + clear() { + this.todoList = []; + return this.todoList; + + } } module.exports = Todo; diff --git a/week-1/Week-1-assignment-with-tests/01-js/medium/palindrome.js b/week-1/Week-1-assignment-with-tests/01-js/medium/palindrome.js index d8fe2d8f8..78bc5f412 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/medium/palindrome.js +++ b/week-1/Week-1-assignment-with-tests/01-js/medium/palindrome.js @@ -7,7 +7,26 @@ */ function isPalindrome(str) { - return true; + var isPali = true; + + + for (var i = 0; i < (str.length) / 2; i++) { + if (str[i].toLowerCase() != str[str.length - 1 - i].toLowerCase()) { + isPali = false; + + } + } + if (isPali) { + + return true; + + + } else { + isPali = true; + + return false; + } + } module.exports = isPalindrome; diff --git a/week-1/Week-1-assignment-with-tests/01-js/medium/times.js b/week-1/Week-1-assignment-with-tests/01-js/medium/times.js index eb125cc26..00625793a 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/medium/times.js +++ b/week-1/Week-1-assignment-with-tests/01-js/medium/times.js @@ -8,5 +8,16 @@ Hint - use Date class exposed in JS */ function calculateTime(n) { - return 0.01; -} \ No newline at end of file + var initialSum = 0; + ///will get start time + const startTime = new Date().getTime(); + ///lets go through all the elements + for (var initial = 0; initial < n; initial++) { + initialSum = initialSum + initial; + } + ///here will get end time + const endTime = new Date().getTime(); + console.log(initialSum); + return endTime - startTime; + +} \ No newline at end of file diff --git a/week-1/Week-1-assignment-with-tests/01-js/package.json b/week-1/Week-1-assignment-with-tests/01-js/package.json index a3b592da7..dd2f9bcde 100644 --- a/week-1/Week-1-assignment-with-tests/01-js/package.json +++ b/week-1/Week-1-assignment-with-tests/01-js/package.json @@ -18,4 +18,4 @@ "keywords": [], "author": "", "license": "ISC" -} +} \ No newline at end of file diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/1-counter.js b/week-1/Week-1-assignment-with-tests/02-async-js/easy/1-counter.js new file mode 100644 index 000000000..c9d88c949 --- /dev/null +++ b/week-1/Week-1-assignment-with-tests/02-async-js/easy/1-counter.js @@ -0,0 +1,9 @@ +// ## Create a counter in JavaScript + +// We have already covered this in the second lesson, but as an easy recap try to code a counter in Javascript +// It should go up as time goes by in intervals of 1 second + +///Here the word "Hello" will be printed every 1 seconds +setInterval(() => { + console.log("Hello") +}, 1000); \ No newline at end of file diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/1-counter.md b/week-1/Week-1-assignment-with-tests/02-async-js/easy/1-counter.md deleted file mode 100644 index 54483eabc..000000000 --- a/week-1/Week-1-assignment-with-tests/02-async-js/easy/1-counter.md +++ /dev/null @@ -1,4 +0,0 @@ -## Create a counter in JavaScript - -We have already covered this in the second lesson, but as an easy recap try to code a counter in Javascript -It should go up as time goes by in intervals of 1 second \ No newline at end of file diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/2-counter.js b/week-1/Week-1-assignment-with-tests/02-async-js/easy/2-counter.js new file mode 100644 index 000000000..dd1af83d5 --- /dev/null +++ b/week-1/Week-1-assignment-with-tests/02-async-js/easy/2-counter.js @@ -0,0 +1,81 @@ +// ## Counter without setInterval + +// Without using setInterval, try to code a counter in Javascript. There is a hint at the bottom of the file if you get stuck. + + +///Here we are not using setInterval but setTimeout ,it will run after 1 seconds + +function counter() { + console.log("Hello"); + setTimeout(counter, 1000); +} +counter() + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +// (Hint: setTimeout) \ No newline at end of file diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/2-counter.md b/week-1/Week-1-assignment-with-tests/02-async-js/easy/2-counter.md deleted file mode 100644 index db5f2fffa..000000000 --- a/week-1/Week-1-assignment-with-tests/02-async-js/easy/2-counter.md +++ /dev/null @@ -1,76 +0,0 @@ -## Counter without setInterval - -Without using setInterval, try to code a counter in Javascript. There is a hint at the bottom of the file if you get stuck. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -(Hint: setTimeout) \ No newline at end of file diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/3-read-from-file.js b/week-1/Week-1-assignment-with-tests/02-async-js/easy/3-read-from-file.js new file mode 100644 index 000000000..9cbada8da --- /dev/null +++ b/week-1/Week-1-assignment-with-tests/02-async-js/easy/3-read-from-file.js @@ -0,0 +1,6 @@ +// ## Reading the contents of a file + +// Write code to read contents of a file and print it to the console. +// You can use the fs library to as a black box, the goal is to understand async tasks. +// Try to do an expensive operation below the file read and see how it affects the output. +// Make the expensive operation more and more expensive and see how it affects the output. diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/3-read-from-file.md b/week-1/Week-1-assignment-with-tests/02-async-js/easy/3-read-from-file.md deleted file mode 100644 index f619d71ae..000000000 --- a/week-1/Week-1-assignment-with-tests/02-async-js/easy/3-read-from-file.md +++ /dev/null @@ -1,7 +0,0 @@ -## Reading the contents of a file - -Write code to read contents of a file and print it to the console. -You can use the fs library to as a black box, the goal is to understand async tasks. -Try to do an expensive operation below the file read and see how it affects the output. -Make the expensive operation more and more expensive and see how it affects the output. - diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/easy/4-write-to-file.md b/week-1/Week-1-assignment-with-tests/02-async-js/easy/4-write-to-file.js similarity index 100% rename from week-1/Week-1-assignment-with-tests/02-async-js/easy/4-write-to-file.md rename to week-1/Week-1-assignment-with-tests/02-async-js/easy/4-write-to-file.js diff --git a/week-1/Week-1-assignment-with-tests/02-async-js/hard (promises)/1-promisify-setTimeout.js b/week-1/Week-1-assignment-with-tests/02-async-js/hard (promises)/1-promisify-setTimeout.js index cc0b7dd72..71467756d 100644 --- a/week-1/Week-1-assignment-with-tests/02-async-js/hard (promises)/1-promisify-setTimeout.js +++ b/week-1/Week-1-assignment-with-tests/02-async-js/hard (promises)/1-promisify-setTimeout.js @@ -3,4 +3,14 @@ */ function wait(n) { -} \ No newline at end of file + return new Promise((a) => { + setTimeout(() => { + a('What is This'); + }, n + 5000); + },) +} +async function runn() { + var aa = await wait(1000); + console.log(aa); +} +runn() \ No newline at end of file diff --git a/week-2/Week-2-Assignments/02-nodejs/authenticationServer.js b/week-2/Week-2-Assignments/02-nodejs/authenticationServer.js index c5278b94f..ca1602f10 100644 --- a/week-2/Week-2-Assignments/02-nodejs/authenticationServer.js +++ b/week-2/Week-2-Assignments/02-nodejs/authenticationServer.js @@ -29,9 +29,88 @@ Testing the server - run `npm run test-authenticationServer` command in terminal */ -const express = require("express") +// const express = require("express") +import express from "express"; +import body_parser from "body-parser"; +import jwt from "jsonwebtoken"; const PORT = 3000; const app = express(); +app.use(body_parser.json()); +app.use(express.json()) +const jwt_secret = "dumy$ecREt"; +var allUsersList = []; +var allAdminList = [{ + id: "132a456", username: "Admin", password: "Password", firstName: "firstName", lastName: "lastName" + +}]; +// app.use(express().) + // write your logic here, DONT WRITE app.listen(3000) when you're running tests, the tests will automatically start the server -module.exports = app; +///Generating token +function generateToken(data) { + return jwt.sign(data, jwt_secret); +} + +app.post("/signup", (req, res) => { + const passwordNew = req.body.password; + + + const { username, password, firstName, lastName } = req.body; + + if ((username && username.length === 0) || (password && password.length === 0) || (lastName && lastName.length === 0)) { + res.status(400).send({ "statusCode": 0, "message": "One or More fields are empty" }); + return; + } + const newUser = { + id: Date().valueOf(), name: username, password: password, firstName: firstName, lastName: lastName + }; + allUsersList.push(newUser); + res.status(200).send({ "statusCode": 1, "message": "Account successfully created", "userId": newUser.id, "token": generateToken(newUser) }); +}) + +app.post("/login", (req, res) => { + const { username, password } = req.body; + + + if ((username && username.length === 0) || (password && password.length === 0)) { + res.status(400).send({ "statusCode": 0, "message": "One or More fields are empty" }); + return; + } + var userDetails = allUsersList.find((singleUserDetails) => (singleUserDetails.name == username && singleUserDetails.password == password)); + + console.log(userDetails); + if (userDetails) { + res.status(200).send({ "statusCode": 1, data: userDetails }); + + } else { + + res.status(400).send({ "statusCode": 0, "message": "User Not Fould" }); + } +}) + +const adminAuth = (req, res, next) => { + const { username, password } = req.headers; + + var isAdmin = allAdminList.find((ele) => (ele.username == username && ele.password == password) + ); + if (isAdmin) { + next(); + } else { + res.status(401).send("Unauthorized"); + } +} + +app.get("/data", adminAuth, (req, res) => { + if (allUsersList.length > 0) { + res.send({ "statusCode": 1, "data": allUsersList }); + } else { + + res.send({ "statusCode": 0, "message": "No User Record Found", }); + } +}); + +app.listen(3000, () => { + console.log("server started at 3000") +}) +// module.exports = app; diff --git a/week-2/Week-2-Assignments/02-nodejs/fileServer.js b/week-2/Week-2-Assignments/02-nodejs/fileServer.js index 82e7719b4..1c6b8c6a0 100644 --- a/week-2/Week-2-Assignments/02-nodejs/fileServer.js +++ b/week-2/Week-2-Assignments/02-nodejs/fileServer.js @@ -16,10 +16,17 @@ Testing the server - run `npm run test-fileServer` command in terminal */ -const express = require('express'); -const fs = require('fs'); -const path = require('path'); +import express from "express" +import fs from "fs" +import path from "path" + + +// const express = require('express'); +// const fs = require('fs'); +// const path = require('path'); const app = express(); +//GET /files - Returns a list of files present in `./files/` directory + -module.exports = app; +// module.exports = app; diff --git a/week-2/Week-2-Assignments/02-nodejs/package-lock.json b/week-2/Week-2-Assignments/02-nodejs/package-lock.json index b13088b72..ecaf54736 100644 --- a/week-2/Week-2-Assignments/02-nodejs/package-lock.json +++ b/week-2/Week-2-Assignments/02-nodejs/package-lock.json @@ -9,7 +9,10 @@ "version": "1.0.0", "license": "ISC", "dependencies": { - "express": "^4.18.2", + "body-parser": "1.20.2", + "express": "^4.19.2", + "jsonwebtoken": "^9.0.2", + "nodemon": "^3.1.4", "uuid": "^9.0.0" }, "devDependencies": { @@ -1132,7 +1135,6 @@ "version": "3.1.3", "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz", "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==", - "dev": true, "dependencies": { "normalize-path": "^3.0.0", "picomatch": "^2.0.4" @@ -1261,16 +1263,26 @@ "node_modules/balanced-match": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz", - "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==", - "dev": true + "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==" + }, + "node_modules/binary-extensions": { + "version": "2.3.0", + "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz", + "integrity": "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw==", + "engines": { + "node": ">=8" + }, + "funding": { + "url": "https://github.com/sponsors/sindresorhus" + } }, "node_modules/body-parser": { - "version": "1.20.1", - "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz", - "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==", + "version": "1.20.2", + "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz", + "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==", "dependencies": { "bytes": "3.1.2", - "content-type": "~1.0.4", + "content-type": "~1.0.5", "debug": "2.6.9", "depd": "2.0.0", "destroy": "1.2.0", @@ -1278,7 +1290,7 @@ "iconv-lite": "0.4.24", "on-finished": "2.4.1", "qs": "6.11.0", - "raw-body": "2.5.1", + "raw-body": "2.5.2", "type-is": "~1.6.18", "unpipe": "1.0.0" }, @@ -1318,7 +1330,6 @@ "version": "1.1.11", "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz", "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==", - "dev": true, "dependencies": { "balanced-match": "^1.0.0", "concat-map": "0.0.1" @@ -1328,7 +1339,6 @@ "version": "3.0.2", "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz", "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==", - "dev": true, "dependencies": { "fill-range": "^7.0.1" }, @@ -1377,6 +1387,11 @@ "node-int64": "^0.4.0" } }, + "node_modules/buffer-equal-constant-time": { + "version": "1.0.1", + "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz", + "integrity": 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-1556,8 +1594,7 @@ "node_modules/concat-map": { "version": "0.0.1", "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz", - "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==", - "dev": true + "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==" }, "node_modules/content-disposition": { "version": "0.5.4", @@ -1585,9 +1622,9 @@ "dev": true }, "node_modules/cookie": { - "version": "0.5.0", - "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz", - "integrity": "sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw==", + "version": "0.6.0", + "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz", + "integrity": "sha512-U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==", "engines": { "node": ">= 0.6" } @@ -1621,7 +1658,6 @@ "version": "4.3.4", 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"sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==", - "dev": true, "requires": { "is-number": "^7.0.0" } @@ -7334,6 +7806,11 @@ "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz", "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==" }, + "touch": { + "version": "3.1.1", + "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.1.tgz", + "integrity": "sha512-r0eojU4bI8MnHr8c5bNo7lJDdI2qXlWWJk6a9EAFG7vbhTjElYhBVS3/miuE0uOuoLdb8Mc/rVfsmm6eo5o9GA==" + }, "type-detect": { "version": "4.0.8", "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz", @@ -7355,6 +7832,11 @@ "mime-types": "~2.1.24" } }, + "undefsafe": { + "version": "2.0.5", + "resolved": "https://registry.npmjs.org/undefsafe/-/undefsafe-2.0.5.tgz", + "integrity": "sha512-WxONCrssBM8TSPRqN5EmsjVrsv4A8X12J4ArBiiayv3DyyG3ZlIg6yysuuSYdZsVz3TKcTg2fd//Ujd4CHV1iA==" + }, "unpipe": { "version": "1.0.0", "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", diff --git a/week-2/Week-2-Assignments/02-nodejs/package.json b/week-2/Week-2-Assignments/02-nodejs/package.json index 4858530a6..9db6fa9ac 100644 --- a/week-2/Week-2-Assignments/02-nodejs/package.json +++ b/week-2/Week-2-Assignments/02-nodejs/package.json @@ -3,6 +3,7 @@ "version": "1.0.0", "description": "", "main": "index.js", + "type": "module", "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "test-fileServer": "./node_modules/jest/bin/jest.js ./tests/fileServer.test.js", @@ -21,7 +22,10 @@ "testTimeout": 10000 }, "dependencies": { - "express": "^4.18.2", + "body-parser": "1.20.2", + "express": "^4.19.2", + "jsonwebtoken": "^9.0.2", + "nodemon": "^3.1.4", "uuid": "^9.0.0" } } diff --git a/week-2/Week-2-Assignments/02-nodejs/tempCodeRunnerFile.js b/week-2/Week-2-Assignments/02-nodejs/tempCodeRunnerFile.js new file mode 100644 index 000000000..5cbdc2ae7 --- /dev/null +++ b/week-2/Week-2-Assignments/02-nodejs/tempCodeRunnerFile.js @@ -0,0 +1 @@ +uuiv4 \ No newline at end of file diff --git a/week-2/Week-2-Assignments/02-nodejs/todoServer.js b/week-2/Week-2-Assignments/02-nodejs/todoServer.js index cffc7d600..5dac71547 100644 --- a/week-2/Week-2-Assignments/02-nodejs/todoServer.js +++ b/week-2/Week-2-Assignments/02-nodejs/todoServer.js @@ -39,11 +39,117 @@ Testing the server - run `npm run test-todoServer` command in terminal */ -const express = require('express'); -const bodyParser = require('body-parser'); - +// const express = require('express'); +// const bodyParser = require('body-parser'); +import express from "express" +import body_parser from "body-parser" +import jwt from "jsonwebtoken" +import { v4 as uuidv4 } from "uuid" const app = express(); +app.use(body_parser.json()) +var allData = [{ id: 12345, name: "Name", password: "Password", todos: [{ id: 1, title: "title", description: "description" }] }]; +var allTodos = [{ "id": 1, "title": "title", "description": "description" }]; +const jwt_secret_code = "tOdo@JWt" + +function generateToken(dataTosign) { + return jwt.sign(dataTosign, jwt_secret_code); +} +function verifyToken(dataToVerify) { + var userverify = jwt.verify(dataToVerify, jwt_secret_code); + return userverify; + +} + +///User middleware +const userMiddleware = (req, res, next) => { + const { token } = req.headers; + var tokenExpiry = verifyToken(token); + const { name, password } = tokenExpiry; + + console.log(tokenExpiry); + var user = allData.find((ele) => (ele.name === name && ele.password === password)); + + if (user) { + req.user = user; + next(); + } else { + res.status(403).send({ + statusCode: 0, message: "Session Expired Please Login" + }); + } +}; + +app.post("/signup", (req, res) => { + const { name, password } = req.body; + var checkUser = allData.find((ele) => (ele.name === name && ele.password === password)); + if (checkUser) { + res.send({ statusCode: 0, message: "User Already Exist", token: generateToken({ name: name, password: password }) }); + } else { + allData.push({ + id: uuidv4(), + name: name, password: password, todos: [] + }); + res.status(200).send({ statusCode: 1, message: "Account Created Successfully", token: generateToken({ name: name, password: password }) }) + } + +}); + +// GET /todos +app.get("/todos", userMiddleware, (req, res) => { + if (req.user.todos.length > 0) { + res.send({ statusCode: 1, data: req.user.todos }); + } else { + res.send({ statusCode: 0, message: "No Records Found" }); + } +}); + +// POST /todos - Create a new todo item +app.post("/todos", userMiddleware, (req, res) => { + const { title, description } = req.body; + req.user.todos.push({ + id: uuidv4(), title: title, description: description + }); + res.send({ statusCode: 1, message: "Todo Added" }) +}); + +// .GET /todos/:id - Retrieve a specific todo item by ID +app.get("/todos/:id", userMiddleware, (req, res) => { + var id = req.params.id; + var checkTodoWithId = req.user.todos.find((eachTodo) => (eachTodo.id === id)); + if (checkTodoWithId) { + res.send({ statusCode: 1, data: checkTodoWithId }) + } else { + res.send({ statusCode: 0, message: "Todo Not Found" }); + } +}); + +// PUT /todos/:id - Update an existing todo item by ID +app.put("/todos/:id", userMiddleware, (req, res) => { + const id = req.params.id; + const { title, description } = req.body; + + var updateTodoIdData = req.user.todos.find((eachTodo) => (eachTodo.id === id)); + if (updateTodoIdData) { + updateTodoIdData.title = title; + updateTodoIdData.description = description; + res.send({ statusCode: 1, message: "Updated Successfully" }); + } else { + res.send({ statusCode: 0, message: "Todo Not Found" }); + } + + +}) +//DELETE /todos/:id - Delete a todo item by IDs +app.delete("/todos/:id", userMiddleware, (req, res) => { + var id = req.params.id; + var newList = req.user.todos.filter(ele => ele.id != id); + req.user.todos = newList; + res.send({ statusCode: 1, message: "Deleted successfully" }); +}); + +app.listen(3000, () => { + console.log("Server Started At 3000"); +}) -app.use(bodyParser.json()); -module.exports = app; +// module.exports = app; diff --git a/week-3/02-course-app-easy-2/index.js b/week-3/02-course-app-easy-2/index.js index 32fff61e9..f42a5b8b5 100644 --- a/week-3/02-course-app-easy-2/index.js +++ b/week-3/02-course-app-easy-2/index.js @@ -1,52 +1,279 @@ -const express = require('express'); +// const express = require('express'); +// const app = express(); + +// app.use(express.json()); + +// let ADMINS = []; +// let USERS = []; +// let COURSES = []; + +// // Admin routes +// app.post('/admin/signup', (req, res) => { +// // logic to sign up admin +// }); + +// app.post('/admin/login', (req, res) => { +// // logic to log in admin +// }); + +// app.post('/admin/courses', (req, res) => { +// // logic to create a course +// }); + +// app.put('/admin/courses/:courseId', (req, res) => { +// // logic to edit a course +// }); + +// app.get('/admin/courses', (req, res) => { +// // logic to get all courses +// }); + +// // User routes +// app.post('/users/signup', (req, res) => { +// // logic to sign up user +// }); + +// app.post('/users/login', (req, res) => { +// // logic to log in user +// }); + +// app.get('/users/courses', (req, res) => { +// // logic to list all courses +// }); + +// app.post('/users/courses/:courseId', (req, res) => { +// // logic to purchase a course +// }); + +// app.get('/users/purchasedCourses', (req, res) => { +// // logic to view purchased courses +// }); + +// app.listen(3000, () => { +// console.log('Server is listening on port 3000'); +// }); + +///I have already done jwt in easy assignment only +// const express = require('express'); +import express from "express"; +import { v4 as uuidv4 } from "uuid" +import jwt from "jsonwebtoken" const app = express(); app.use(express.json()); -let ADMINS = []; -let USERS = []; -let COURSES = []; +let ADMINS = [{ + id: 1, adminName: "adminName", adminPassword: "adminPassword", courses: [], amount: 0 +}]; +let USERS = [{ + id: 1, userName: "userName", userPassword: "userPassword", courses: [] +} +]; +let COURSES = [{ + id: 1, courseName: "courseName", courseDetails: "courseDetails", authorId: 1, amount: 10 +}]; +const jwt_secret_token = "CoUr$eTOkeN"; + +function generateToken(data) { + return jwt.sign(data, jwt_secret_token); +} + +function verifyToken(data) { + return jwt.verify(data, jwt_secret_token); +} // Admin routes app.post('/admin/signup', (req, res) => { // logic to sign up admin + const { adminName, adminPassword } = req.body; + + if ((adminName && adminName.length <= 0) || (adminPassword && adminPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more Fields are Empty" }); + return; + } + var isAlreadyAdmin = ADMINS.find((eachEle => eachEle.adminName == adminName)); + if (isAlreadyAdmin) { + res.send({ statusCode: 0, message: "User Name Already Exist Please Login", }); + return; + } + var adminData = { + id: uuidv4(), + adminName: adminName, + adminPassword: adminPassword, + courses: [], + amount: 0 + }; + ADMINS.push(adminData); + res.send({ statusCode: 1, message: "User Signup successfully", id: adminData.id, token: generateToken({ adminName: adminData.adminName, adminPassword: adminData.adminPassword }) }); + + }); + app.post('/admin/login', (req, res) => { // logic to log in admin + const { adminName, adminPassword } = req.body; + var isAdmin = ADMINS.find((admin => (admin.adminName === adminName && admin.adminPassword == adminPassword))); + if (isAdmin) { + res.send({ statusCode: 1, data: isAdmin, token: generateToken(isAdmin) }) + } else { + + res.send({ statusCode: 0, message: "User Not Found" }); + } }); -app.post('/admin/courses', (req, res) => { +const adminMidddleware = (req, res, next) => { + const token = req.headers.token; + const { adminName, adminPassword } = verifyToken(token); + var admin = ADMINS.find((adm => adm.adminName === adminName && adm.adminPassword === adminPassword)); + if (admin) { + req.user = admin; + next(); + } else { + res.status(403).send({ statusCode: 0, message: "Unauthorised" }); + } +} + +app.post('/admin/courses', adminMidddleware, (req, res) => { // logic to create a course + const { courseName, courseDetails, amount } = req.body; + var createdCourse = { + id: uuidv4(), courseName: courseName, courseDetails: courseDetails, authorId: req.user.id, amount: amount + }; + + COURSES.push(createdCourse); + req.user.courses.push(createdCourse.id); + + res.send({ statusCode: 1, message: "Added", data: req.user }) }); -app.put('/admin/courses/:courseId', (req, res) => { +app.put('/admin/courses/:courseId', adminMidddleware, (req, res) => { // logic to edit a course + const courseId = req.params.courseId; + const { courseName, courseDetails } = req.body; + + var isHisCourseId = req.user.courses.find((cou) => (cou === courseId)); + if (isHisCourseId) { + var broughtCourse = COURSES.find((cous) => (cous.id === courseId)); + broughtCourse.courseName = courseName; + broughtCourse.courseDetails = courseDetails; + + res.send({ statusCode: 1, data: broughtCourse }) + } else { + res.send({ statusCode: 0, message: "You Have not brought this course" }) + } }); -app.get('/admin/courses', (req, res) => { +app.get('/admin/courses', adminMidddleware, (req, res) => { // logic to get all courses + if (req.user.courses.length > 0) { + var adminCoursesId = req.user.courses; + let allCoursesDetails = []; + var allAdminCourses = adminCoursesId.forEach((eachCour => { + var courseFinded = COURSES.find((cour) => (eachCour === cour.id)); + if (courseFinded) { + allCoursesDetails.push(courseFinded); + } + })) + res.send({ statusCode: 1, data: allCoursesDetails }); + } else { + res.send({ statusCode: 0, message: "Make Courses to see here" }) + } }); // User routes app.post('/users/signup', (req, res) => { // logic to sign up user + const { userName, userPassword } = req.body; + + if ((userName && userName.length <= 0) || (userPassword && userPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + var userPresent = USERS.find((usr) => (usr.userName === userName)); + if (userPresent) { + res.send({ statusCode: 0, message: "User Aleady Found" }); + } else { + let userData = { + id: uuidv4(), + userName: userName, + userPassword: userPassword, + courses: [] + } + USERS.push(userData); + res.send({ statusCode: 1, id: userData.id, token: generateToken({ userName: userData.userName, userPassword: userData.userPassword }) }) + } + + }); app.post('/users/login', (req, res) => { // logic to log in user + const { userName, userPassword } = req.body; + if ((userName && userName.length <= 0) || (userPassword && userPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + var isUserPresent = USERS.find((urs) => (urs.userName === userName && urs.userPassword === userPassword)); + if (isUserPresent) { + res.send({ statusCode: 1, data: isUserPresent, token: generateToken({ userName: isUserPresent.userName, userPassword: isUserPresent.userPassword }) }) + + } else { + res.send({ statusCode: 0, message: "Invalid User Details" }) + } }); -app.get('/users/courses', (req, res) => { +const userMiddleware = (req, res, next) => { + const token = req.headers.token; + const { userName, userPassword } = verifyToken(token); + + let isUserPresent = USERS.find((urs) => (urs.userName === userName && urs.userPassword === userPassword)); + if (isUserPresent) { + req.user = isUserPresent; + next(); + } else { + res.status(403).send({ statusCode: 0, message: "Unauthorised" }); + } +} + +app.get('/users/courses', userMiddleware, (req, res) => { // logic to list all courses + res.send({ statusCode: 1, data: COURSES }); }); -app.post('/users/courses/:courseId', (req, res) => { +app.post('/users/courses/:courseId', userMiddleware, (req, res) => { // logic to purchase a course + const courseId = req.params.courseId; + req.user.courses.push(courseId); + + var courseDetail = COURSES.find((cor) => (cor.id === courseId)); + if (courseDetail) { + var author = ADMINS.find((adm) => (adm.id === courseDetail.authorId)); + author.amount = author.amount + courseDetail.amount; + } + + res.send({ statusCode: 1, message: "Course Added Successfully" }); }); -app.get('/users/purchasedCourses', (req, res) => { +app.get('/users/purchasedCourses', userMiddleware, (req, res) => { // logic to view purchased courses + var purchasedCoursesId = req.user.courses; + if (purchasedCoursesId.length > 0) { + + let purchasedCourses = []; + purchasedCoursesId.forEach((cour) => { + var isPurched = COURSES.find((ele) => ele.id === cour); + if (isPurched) { + purchasedCourses.push(isPurched); + } + }); + res.send({ statusCode: 1, data: purchasedCourses }); + + } else { + + res.send({ statusCode: 0, message: "Buy some courses to see heres" }); + } + }); app.listen(3000, () => { diff --git a/week-3/02-course-app-easy/index.js b/week-3/02-course-app-easy/index.js index 32fff61e9..86e3b0d91 100644 --- a/week-3/02-course-app-easy/index.js +++ b/week-3/02-course-app-easy/index.js @@ -1,52 +1,223 @@ -const express = require('express'); +// const express = require('express'); +import express from "express"; +import { v4 as uuidv4 } from "uuid" +import jwt from "jsonwebtoken" const app = express(); app.use(express.json()); -let ADMINS = []; -let USERS = []; -let COURSES = []; +let ADMINS = [{ + id: 1, adminName: "adminName", adminPassword: "adminPassword", courses: [], amount: 0 +}]; +let USERS = [{ + id: 1, userName: "userName", userPassword: "userPassword", courses: [] +} +]; +let COURSES = [{ + id: 1, courseName: "courseName", courseDetails: "courseDetails", authorId: 1, amount: 10 +}]; +const jwt_secret_token = "CoUr$eTOkeN"; + +function generateToken(data) { + return jwt.sign(data, jwt_secret_token); +} + +function verifyToken(data) { + return jwt.verify(data, jwt_secret_token); +} // Admin routes app.post('/admin/signup', (req, res) => { // logic to sign up admin + const { adminName, adminPassword } = req.body; + + if ((adminName && adminName.length <= 0) || (adminPassword && adminPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more Fields are Empty" }); + return; + } + var isAlreadyAdmin = ADMINS.find((eachEle => eachEle.adminName == adminName)); + if (isAlreadyAdmin) { + res.send({ statusCode: 0, message: "User Name Already Exist Please Login", }); + return; + } + var adminData = { + id: uuidv4(), + adminName: adminName, + adminPassword: adminPassword, + courses: [], + amount: 0 + }; + ADMINS.push(adminData); + res.send({ statusCode: 1, message: "User Signup successfully", id: adminData.id, token: generateToken({ adminName: adminData.adminName, adminPassword: adminData.adminPassword }) }); + + }); + app.post('/admin/login', (req, res) => { // logic to log in admin + const { adminName, adminPassword } = req.body; + var isAdmin = ADMINS.find((admin => (admin.adminName === adminName && admin.adminPassword == adminPassword))); + if (isAdmin) { + res.send({ statusCode: 1, data: isAdmin, token: generateToken(isAdmin) }) + } else { + + res.send({ statusCode: 0, message: "User Not Found" }); + } }); -app.post('/admin/courses', (req, res) => { +const adminMidddleware = (req, res, next) => { + const token = req.headers.token; + const { adminName, adminPassword } = verifyToken(token); + var admin = ADMINS.find((adm => adm.adminName === adminName && adm.adminPassword === adminPassword)); + if (admin) { + req.user = admin; + next(); + } else { + res.status(403).send({ statusCode: 0, message: "Unauthorised" }); + } +} + +app.post('/admin/courses', adminMidddleware, (req, res) => { // logic to create a course + const { courseName, courseDetails, amount } = req.body; + var createdCourse = { + id: uuidv4(), courseName: courseName, courseDetails: courseDetails, authorId: req.user.id, amount: amount + }; + + COURSES.push(createdCourse); + req.user.courses.push(createdCourse.id); + + res.send({ statusCode: 1, message: "Added", data: req.user }) }); -app.put('/admin/courses/:courseId', (req, res) => { +app.put('/admin/courses/:courseId', adminMidddleware, (req, res) => { // logic to edit a course + const courseId = req.params.courseId; + const { courseName, courseDetails } = req.body; + + var isHisCourseId = req.user.courses.find((cou) => (cou === courseId)); + if (isHisCourseId) { + var broughtCourse = COURSES.find((cous) => (cous.id === courseId)); + broughtCourse.courseName = courseName; + broughtCourse.courseDetails = courseDetails; + + res.send({ statusCode: 1, data: broughtCourse }) + } else { + res.send({ statusCode: 0, message: "You Have not brought this course" }) + } }); -app.get('/admin/courses', (req, res) => { +app.get('/admin/courses', adminMidddleware, (req, res) => { // logic to get all courses + if (req.user.courses.length > 0) { + var adminCoursesId = req.user.courses; + let allCoursesDetails = []; + var allAdminCourses = adminCoursesId.forEach((eachCour => { + var courseFinded = COURSES.find((cour) => (eachCour === cour.id)); + if (courseFinded) { + allCoursesDetails.push(courseFinded); + } + })) + res.send({ statusCode: 1, data: allCoursesDetails }); + } else { + res.send({ statusCode: 0, message: "Make Courses to see here" }) + } }); // User routes app.post('/users/signup', (req, res) => { // logic to sign up user + const { userName, userPassword } = req.body; + + if ((userName && userName.length <= 0) || (userPassword && userPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + var userPresent = USERS.find((usr) => (usr.userName === userName)); + if (userPresent) { + res.send({ statusCode: 0, message: "User Aleady Found" }); + } else { + let userData = { + id: uuidv4(), + userName: userName, + userPassword: userPassword, + courses: [] + } + USERS.push(userData); + res.send({ statusCode: 1, id: userData.id, token: generateToken({ userName: userData.userName, userPassword: userData.userPassword }) }) + } + + }); app.post('/users/login', (req, res) => { // logic to log in user + const { userName, userPassword } = req.body; + if ((userName && userName.length <= 0) || (userPassword && userPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + var isUserPresent = USERS.find((urs) => (urs.userName === userName && urs.userPassword === userPassword)); + if (isUserPresent) { + res.send({ statusCode: 1, data: isUserPresent, token: generateToken({ userName: isUserPresent.userName, userPassword: isUserPresent.userPassword }) }) + + } else { + res.send({ statusCode: 0, message: "Invalid User Details" }) + } }); -app.get('/users/courses', (req, res) => { +const userMiddleware = (req, res, next) => { + const token = req.headers.token; + const { userName, userPassword } = verifyToken(token); + + let isUserPresent = USERS.find((urs) => (urs.userName === userName && urs.userPassword === userPassword)); + if (isUserPresent) { + req.user = isUserPresent; + next(); + } else { + res.status(403).send({ statusCode: 0, message: "Unauthorised" }); + } +} + +app.get('/users/courses', userMiddleware, (req, res) => { // logic to list all courses + res.send({ statusCode: 1, data: COURSES }); }); -app.post('/users/courses/:courseId', (req, res) => { +app.post('/users/courses/:courseId', userMiddleware, (req, res) => { // logic to purchase a course + const courseId = req.params.courseId; + req.user.courses.push(courseId); + + var courseDetail = COURSES.find((cor) => (cor.id === courseId)); + if (courseDetail) { + var author = ADMINS.find((adm) => (adm.id === courseDetail.authorId)); + author.amount = author.amount + courseDetail.amount; + } + + res.send({ statusCode: 1, message: "Course Added Successfully" }); }); -app.get('/users/purchasedCourses', (req, res) => { +app.get('/users/purchasedCourses', userMiddleware, (req, res) => { // logic to view purchased courses + var purchasedCoursesId = req.user.courses; + if (purchasedCoursesId.length > 0) { + + let purchasedCourses = []; + purchasedCoursesId.forEach((cour) => { + var isPurched = COURSES.find((ele) => ele.id === cour); + if (isPurched) { + purchasedCourses.push(isPurched); + } + }); + res.send({ statusCode: 1, data: purchasedCourses }); + + } else { + + res.send({ statusCode: 0, message: "Buy some courses to see heres" }); + } + }); app.listen(3000, () => { diff --git a/week-3/02-course-app-easy/node_modules/.bin/semver b/week-3/02-course-app-easy/node_modules/.bin/semver new file mode 100644 index 000000000..77443e787 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/.bin/semver @@ -0,0 +1,12 @@ +#!/bin/sh +basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')") + +case `uname` in + *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;; +esac + +if [ -x "$basedir/node" ]; then + exec "$basedir/node" "$basedir/../semver/bin/semver.js" "$@" +else + exec node "$basedir/../semver/bin/semver.js" "$@" +fi diff --git a/week-3/02-course-app-easy/node_modules/.bin/semver.cmd b/week-3/02-course-app-easy/node_modules/.bin/semver.cmd new file mode 100644 index 000000000..9913fa9d0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/.bin/semver.cmd @@ -0,0 +1,17 @@ +@ECHO off +GOTO start +:find_dp0 +SET dp0=%~dp0 +EXIT /b +:start +SETLOCAL +CALL :find_dp0 + +IF EXIST "%dp0%\node.exe" ( + SET "_prog=%dp0%\node.exe" +) ELSE ( + SET "_prog=node" + SET PATHEXT=%PATHEXT:;.JS;=;% +) + +endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\semver\bin\semver.js" %* diff --git a/week-3/02-course-app-easy/node_modules/.bin/semver.ps1 b/week-3/02-course-app-easy/node_modules/.bin/semver.ps1 new file mode 100644 index 000000000..314717ad4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/.bin/semver.ps1 @@ -0,0 +1,28 @@ +#!/usr/bin/env pwsh +$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent + +$exe="" +if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) { + # Fix case when both the Windows and Linux builds of Node + # are installed in the same directory + $exe=".exe" +} +$ret=0 +if (Test-Path "$basedir/node$exe") { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "$basedir/node$exe" "$basedir/../semver/bin/semver.js" $args + } else { + & "$basedir/node$exe" "$basedir/../semver/bin/semver.js" $args + } + $ret=$LASTEXITCODE +} else { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "node$exe" "$basedir/../semver/bin/semver.js" $args + } else { + & "node$exe" "$basedir/../semver/bin/semver.js" $args + } + $ret=$LASTEXITCODE +} +exit $ret diff --git a/week-3/02-course-app-easy/node_modules/.bin/uuid b/week-3/02-course-app-easy/node_modules/.bin/uuid new file mode 100644 index 000000000..c3ec0035f --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/.bin/uuid @@ -0,0 +1,12 @@ +#!/bin/sh +basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')") + +case `uname` in + *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;; +esac + +if [ -x "$basedir/node" ]; then + exec "$basedir/node" "$basedir/../uuid/dist/bin/uuid" "$@" +else + exec node "$basedir/../uuid/dist/bin/uuid" "$@" +fi diff --git a/week-3/02-course-app-easy/node_modules/.bin/uuid.cmd b/week-3/02-course-app-easy/node_modules/.bin/uuid.cmd new file mode 100644 index 000000000..0f2376eaf --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/.bin/uuid.cmd @@ -0,0 +1,17 @@ +@ECHO off +GOTO start +:find_dp0 +SET dp0=%~dp0 +EXIT /b +:start +SETLOCAL +CALL :find_dp0 + +IF EXIST "%dp0%\node.exe" ( + SET "_prog=%dp0%\node.exe" +) ELSE ( + SET "_prog=node" + SET PATHEXT=%PATHEXT:;.JS;=;% +) + +endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\uuid\dist\bin\uuid" %* diff --git a/week-3/02-course-app-easy/node_modules/.bin/uuid.ps1 b/week-3/02-course-app-easy/node_modules/.bin/uuid.ps1 new file mode 100644 index 000000000..78046284b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/.bin/uuid.ps1 @@ -0,0 +1,28 @@ +#!/usr/bin/env pwsh +$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent + +$exe="" +if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) { + # Fix case when both the Windows and Linux builds of Node + # are installed in the same directory + $exe=".exe" +} +$ret=0 +if (Test-Path "$basedir/node$exe") { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "$basedir/node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } else { + & "$basedir/node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } + $ret=$LASTEXITCODE +} else { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } else { + & "node$exe" "$basedir/../uuid/dist/bin/uuid" 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"type": "consulting", + "url": "https://feross.org/support" + } + ] + }, + "node_modules/semver": { + "version": "7.6.2", + "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.2.tgz", + "integrity": "sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==", + "bin": { + "semver": "bin/semver.js" + }, + "engines": { + "node": ">=10" + } + }, + "node_modules/uuid": { + "version": "10.0.0", + "resolved": "https://registry.npmjs.org/uuid/-/uuid-10.0.0.tgz", + "integrity": "sha512-8XkAphELsDnEGrDxUOHB3RGvXz6TeuYSGEZBOjtTtPm2lwhGBjLgOzLHB63IUWfBpNucQjND6d3AOudO+H3RWQ==", + "funding": [ + "https://github.com/sponsors/broofa", + "https://github.com/sponsors/ctavan" + ], + "bin": { + "uuid": "dist/bin/uuid" + } + } + } +} diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/.npmignore b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/.npmignore new file mode 100644 index 000000000..34e4f5c29 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/.npmignore @@ -0,0 +1,2 @@ +.*.sw[mnop] +node_modules/ diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/.travis.yml b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/.travis.yml new file mode 100644 index 000000000..78e1c0146 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/.travis.yml @@ -0,0 +1,4 @@ +language: node_js +node_js: +- "0.11" +- "0.10" diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/LICENSE.txt b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/LICENSE.txt new file mode 100644 index 000000000..9a064f3f4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/LICENSE.txt @@ -0,0 +1,12 @@ +Copyright (c) 2013, GoInstant Inc., a salesforce.com company +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + +* Neither the name of salesforce.com, nor GoInstant, nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/README.md b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/README.md new file mode 100644 index 000000000..4f227f58b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/README.md @@ -0,0 +1,50 @@ +# buffer-equal-constant-time + +Constant-time `Buffer` comparison for node.js. Should work with browserify too. + +[![Build Status](https://travis-ci.org/goinstant/buffer-equal-constant-time.png?branch=master)](https://travis-ci.org/goinstant/buffer-equal-constant-time) + +```sh + npm install buffer-equal-constant-time +``` + +# Usage + +```js + var bufferEq = require('buffer-equal-constant-time'); + + var a = new Buffer('asdf'); + var b = new Buffer('asdf'); + if (bufferEq(a,b)) { + // the same! + } else { + // different in at least one byte! + } +``` + +If you'd like to install an `.equal()` method onto the node.js `Buffer` and +`SlowBuffer` prototypes: + +```js + require('buffer-equal-constant-time').install(); + + var a = new Buffer('asdf'); + var b = new Buffer('asdf'); + if (a.equal(b)) { + // the same! + } else { + // different in at least one byte! + } +``` + +To get rid of the installed `.equal()` method, call `.restore()`: + +```js + require('buffer-equal-constant-time').restore(); +``` + +# Legal + +© 2013 GoInstant Inc., a salesforce.com company + +Licensed under the BSD 3-clause license. diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/index.js b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/index.js new file mode 100644 index 000000000..5462c1f83 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/index.js @@ -0,0 +1,41 @@ +/*jshint node:true */ +'use strict'; +var Buffer = require('buffer').Buffer; // browserify +var SlowBuffer = require('buffer').SlowBuffer; + +module.exports = bufferEq; + +function bufferEq(a, b) { + + // shortcutting on type is necessary for correctness + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + return false; + } + + // buffer sizes should be well-known information, so despite this + // shortcutting, it doesn't leak any information about the *contents* of the + // buffers. + if (a.length !== b.length) { + return false; + } + + var c = 0; + for (var i = 0; i < a.length; i++) { + /*jshint bitwise:false */ + c |= a[i] ^ b[i]; // XOR + } + return c === 0; +} + +bufferEq.install = function() { + Buffer.prototype.equal = SlowBuffer.prototype.equal = function equal(that) { + return bufferEq(this, that); + }; +}; + +var origBufEqual = Buffer.prototype.equal; +var origSlowBufEqual = SlowBuffer.prototype.equal; +bufferEq.restore = function() { + Buffer.prototype.equal = origBufEqual; + SlowBuffer.prototype.equal = origSlowBufEqual; +}; diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/package.json b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/package.json new file mode 100644 index 000000000..17c7de22c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/package.json @@ -0,0 +1,21 @@ +{ + "name": "buffer-equal-constant-time", + "version": "1.0.1", + "description": "Constant-time comparison of Buffers", + "main": "index.js", + "scripts": { + "test": "mocha test.js" + }, + "repository": "git@github.com:goinstant/buffer-equal-constant-time.git", + "keywords": [ + "buffer", + "equal", + "constant-time", + "crypto" + ], + "author": "GoInstant Inc., a salesforce.com company", + "license": "BSD-3-Clause", + "devDependencies": { + "mocha": "~1.15.1" + } +} diff --git a/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/test.js b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/test.js new file mode 100644 index 000000000..0bc972d84 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/buffer-equal-constant-time/test.js @@ -0,0 +1,42 @@ +/*jshint node:true */ +'use strict'; + +var bufferEq = require('./index'); +var assert = require('assert'); + +describe('buffer-equal-constant-time', function() { + var a = new Buffer('asdfasdf123456'); + var b = new Buffer('asdfasdf123456'); + var c = new Buffer('asdfasdf'); + + describe('bufferEq', function() { + it('says a == b', function() { + assert.strictEqual(bufferEq(a, b), true); + }); + + it('says a != c', function() { + assert.strictEqual(bufferEq(a, c), false); + }); + }); + + describe('install/restore', function() { + before(function() { + bufferEq.install(); + }); + after(function() { + bufferEq.restore(); + }); + + it('installed an .equal method', function() { + var SlowBuffer = require('buffer').SlowBuffer; + assert.ok(Buffer.prototype.equal); + assert.ok(SlowBuffer.prototype.equal); + }); + + it('infected existing Buffers', function() { + assert.strictEqual(a.equal(b), true); + assert.strictEqual(a.equal(c), false); + }); + }); + +}); diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/CODEOWNERS b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/CODEOWNERS new file mode 100644 index 000000000..4451d3d83 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/CODEOWNERS @@ -0,0 +1 @@ +* @omsmith diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/LICENSE b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/LICENSE new file mode 100644 index 000000000..8754ed630 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/LICENSE @@ -0,0 +1,201 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2015 D2L Corporation + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/README.md b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/README.md new file mode 100644 index 000000000..daa95d6e4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/README.md @@ -0,0 +1,65 @@ +# ecdsa-sig-formatter + +[![Build Status](https://travis-ci.org/Brightspace/node-ecdsa-sig-formatter.svg?branch=master)](https://travis-ci.org/Brightspace/node-ecdsa-sig-formatter) [![Coverage Status](https://coveralls.io/repos/Brightspace/node-ecdsa-sig-formatter/badge.svg)](https://coveralls.io/r/Brightspace/node-ecdsa-sig-formatter) + +Translate between JOSE and ASN.1/DER encodings for ECDSA signatures + +## Install +```sh +npm install ecdsa-sig-formatter --save +``` + +## Usage +```js +var format = require('ecdsa-sig-formatter'); + +var derSignature = '..'; // asn.1/DER encoded ecdsa signature + +var joseSignature = format.derToJose(derSignature); + +``` + +### API + +--- + +#### `.derToJose(Buffer|String signature, String alg)` -> `String` + +Convert the ASN.1/DER encoded signature to a JOSE-style concatenated signature. +Returns a _base64 url_ encoded `String`. + +* If _signature_ is a `String`, it should be _base64_ encoded +* _alg_ must be one of _ES256_, _ES384_ or _ES512_ + +--- + +#### `.joseToDer(Buffer|String signature, String alg)` -> `Buffer` + +Convert the JOSE-style concatenated signature to an ASN.1/DER encoded +signature. Returns a `Buffer` + +* If _signature_ is a `String`, it should be _base64 url_ encoded +* _alg_ must be one of _ES256_, _ES384_ or _ES512_ + +## Contributing + +1. **Fork** the repository. Committing directly against this repository is + highly discouraged. + +2. Make your modifications in a branch, updating and writing new unit tests + as necessary in the `spec` directory. + +3. Ensure that all tests pass with `npm test` + +4. `rebase` your changes against master. *Do not merge*. + +5. Submit a pull request to this repository. Wait for tests to run and someone + to chime in. + +### Code Style + +This repository is configured with [EditorConfig][EditorConfig] and +[ESLint][ESLint] rules. + +[EditorConfig]: http://editorconfig.org/ +[ESLint]: http://eslint.org diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/package.json b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/package.json new file mode 100644 index 000000000..6fb5ebfe6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/package.json @@ -0,0 +1,46 @@ +{ + "name": "ecdsa-sig-formatter", + "version": "1.0.11", + "description": "Translate ECDSA signatures between ASN.1/DER and JOSE-style concatenation", + "main": "src/ecdsa-sig-formatter.js", + "scripts": { + "check-style": "eslint .", + "pretest": "npm run check-style", + "test": "istanbul cover --root src _mocha -- spec", + "report-cov": "cat ./coverage/lcov.info | coveralls" + }, + "typings": "./src/ecdsa-sig-formatter.d.ts", + "repository": { + "type": "git", + "url": "git+ssh://git@github.com/Brightspace/node-ecdsa-sig-formatter.git" + }, + "keywords": [ + "ecdsa", + "der", + "asn.1", + "jwt", + "jwa", + "jsonwebtoken", + "jose" + ], + "author": "D2L Corporation", + "license": "Apache-2.0", + "bugs": { + "url": "https://github.com/Brightspace/node-ecdsa-sig-formatter/issues" + }, + "homepage": "https://github.com/Brightspace/node-ecdsa-sig-formatter#readme", + "dependencies": { + "safe-buffer": "^5.0.1" + }, + "devDependencies": { + "bench": "^0.3.6", + "chai": "^3.5.0", + "coveralls": "^2.11.9", + "eslint": "^2.12.0", + "eslint-config-brightspace": "^0.2.1", + "istanbul": "^0.4.3", + "jwk-to-pem": "^1.2.5", + "mocha": "^2.5.3", + "native-crypto": "^1.7.0" + } +} diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.d.ts b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.d.ts new file mode 100644 index 000000000..9693aa030 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.d.ts @@ -0,0 +1,17 @@ +/// + +declare module "ecdsa-sig-formatter" { + /** + * Convert the ASN.1/DER encoded signature to a JOSE-style concatenated signature. Returns a base64 url encoded String. + * If signature is a String, it should be base64 encoded + * alg must be one of ES256, ES384 or ES512 + */ + export function derToJose(signature: Buffer | string, alg: string): string; + + /** + * Convert the JOSE-style concatenated signature to an ASN.1/DER encoded signature. Returns a Buffer + * If signature is a String, it should be base64 url encoded + * alg must be one of ES256, ES384 or ES512 + */ + export function joseToDer(signature: Buffer | string, alg: string): Buffer +} diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.js b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.js new file mode 100644 index 000000000..38eeb9b97 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.js @@ -0,0 +1,187 @@ +'use strict'; + +var Buffer = require('safe-buffer').Buffer; + +var getParamBytesForAlg = require('./param-bytes-for-alg'); + +var MAX_OCTET = 0x80, + CLASS_UNIVERSAL = 0, + PRIMITIVE_BIT = 0x20, + TAG_SEQ = 0x10, + TAG_INT = 0x02, + ENCODED_TAG_SEQ = (TAG_SEQ | PRIMITIVE_BIT) | (CLASS_UNIVERSAL << 6), + ENCODED_TAG_INT = TAG_INT | (CLASS_UNIVERSAL << 6); + +function base64Url(base64) { + return base64 + .replace(/=/g, '') + .replace(/\+/g, '-') + .replace(/\//g, '_'); +} + +function signatureAsBuffer(signature) { + if (Buffer.isBuffer(signature)) { + return signature; + } else if ('string' === typeof signature) { + return Buffer.from(signature, 'base64'); + } + + throw new TypeError('ECDSA signature must be a Base64 string or a Buffer'); +} + +function derToJose(signature, alg) { + signature = signatureAsBuffer(signature); + var paramBytes = getParamBytesForAlg(alg); + + // the DER encoded param should at most be the param size, plus a padding + // zero, since due to being a signed integer + var maxEncodedParamLength = paramBytes + 1; + + var inputLength = signature.length; + + var offset = 0; + if (signature[offset++] !== ENCODED_TAG_SEQ) { + throw new Error('Could not find expected "seq"'); + } + + var seqLength = signature[offset++]; + if (seqLength === (MAX_OCTET | 1)) { + seqLength = signature[offset++]; + } + + if (inputLength - offset < seqLength) { + throw new Error('"seq" specified length of "' + seqLength + '", only "' + (inputLength - offset) + '" remaining'); + } + + if (signature[offset++] !== ENCODED_TAG_INT) { + throw new Error('Could not find expected "int" for "r"'); + } + + var rLength = signature[offset++]; + + if (inputLength - offset - 2 < rLength) { + throw new Error('"r" specified length of "' + rLength + '", only "' + (inputLength - offset - 2) + '" available'); + } + + if (maxEncodedParamLength < rLength) { + throw new Error('"r" specified length of "' + rLength + '", max of "' + maxEncodedParamLength + '" is acceptable'); + } + + var rOffset = offset; + offset += rLength; + + if (signature[offset++] !== ENCODED_TAG_INT) { + throw new Error('Could not find expected "int" for "s"'); + } + + var sLength = signature[offset++]; + + if (inputLength - offset !== sLength) { + throw new Error('"s" specified length of "' + sLength + '", expected "' + (inputLength - offset) + '"'); + } + + if (maxEncodedParamLength < sLength) { + throw new Error('"s" specified length of "' + sLength + '", max of "' + maxEncodedParamLength + '" is acceptable'); + } + + var sOffset = offset; + offset += sLength; + + if (offset !== inputLength) { + throw new Error('Expected to consume entire buffer, but "' + (inputLength - offset) + '" bytes remain'); + } + + var rPadding = paramBytes - rLength, + sPadding = paramBytes - sLength; + + var dst = Buffer.allocUnsafe(rPadding + rLength + sPadding + sLength); + + for (offset = 0; offset < rPadding; ++offset) { + dst[offset] = 0; + } + signature.copy(dst, offset, rOffset + Math.max(-rPadding, 0), rOffset + rLength); + + offset = paramBytes; + + for (var o = offset; offset < o + sPadding; ++offset) { + dst[offset] = 0; + } + signature.copy(dst, offset, sOffset + Math.max(-sPadding, 0), sOffset + sLength); + + dst = dst.toString('base64'); + dst = base64Url(dst); + + return dst; +} + +function countPadding(buf, start, stop) { + var padding = 0; + while (start + padding < stop && buf[start + padding] === 0) { + ++padding; + } + + var needsSign = buf[start + padding] >= MAX_OCTET; + if (needsSign) { + --padding; + } + + return padding; +} + +function joseToDer(signature, alg) { + signature = signatureAsBuffer(signature); + var paramBytes = getParamBytesForAlg(alg); + + var signatureBytes = signature.length; + if (signatureBytes !== paramBytes * 2) { + throw new TypeError('"' + alg + '" signatures must be "' + paramBytes * 2 + '" bytes, saw "' + signatureBytes + '"'); + } + + var rPadding = countPadding(signature, 0, paramBytes); + var sPadding = countPadding(signature, paramBytes, signature.length); + var rLength = paramBytes - rPadding; + var sLength = paramBytes - sPadding; + + var rsBytes = 1 + 1 + rLength + 1 + 1 + sLength; + + var shortLength = rsBytes < MAX_OCTET; + + var dst = Buffer.allocUnsafe((shortLength ? 2 : 3) + rsBytes); + + var offset = 0; + dst[offset++] = ENCODED_TAG_SEQ; + if (shortLength) { + // Bit 8 has value "0" + // bits 7-1 give the length. + dst[offset++] = rsBytes; + } else { + // Bit 8 of first octet has value "1" + // bits 7-1 give the number of additional length octets. + dst[offset++] = MAX_OCTET | 1; + // length, base 256 + dst[offset++] = rsBytes & 0xff; + } + dst[offset++] = ENCODED_TAG_INT; + dst[offset++] = rLength; + if (rPadding < 0) { + dst[offset++] = 0; + offset += signature.copy(dst, offset, 0, paramBytes); + } else { + offset += signature.copy(dst, offset, rPadding, paramBytes); + } + dst[offset++] = ENCODED_TAG_INT; + dst[offset++] = sLength; + if (sPadding < 0) { + dst[offset++] = 0; + signature.copy(dst, offset, paramBytes); + } else { + signature.copy(dst, offset, paramBytes + sPadding); + } + + return dst; +} + +module.exports = { + derToJose: derToJose, + joseToDer: joseToDer +}; diff --git a/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/param-bytes-for-alg.js b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/param-bytes-for-alg.js new file mode 100644 index 000000000..9fe67accd --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ecdsa-sig-formatter/src/param-bytes-for-alg.js @@ -0,0 +1,23 @@ +'use strict'; + +function getParamSize(keySize) { + var result = ((keySize / 8) | 0) + (keySize % 8 === 0 ? 0 : 1); + return result; +} + +var paramBytesForAlg = { + ES256: getParamSize(256), + ES384: getParamSize(384), + ES512: getParamSize(521) +}; + +function getParamBytesForAlg(alg) { + var paramBytes = paramBytesForAlg[alg]; + if (paramBytes) { + return paramBytes; + } + + throw new Error('Unknown algorithm "' + alg + '"'); +} + +module.exports = getParamBytesForAlg; diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/LICENSE b/week-3/02-course-app-easy/node_modules/jsonwebtoken/LICENSE new file mode 100644 index 000000000..bcd1854c4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2015 Auth0, Inc. (http://auth0.com) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/README.md b/week-3/02-course-app-easy/node_modules/jsonwebtoken/README.md new file mode 100644 index 000000000..4e20dd9c7 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/README.md @@ -0,0 +1,396 @@ +# jsonwebtoken + +| **Build** | **Dependency** | +|-----------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------| +| [![Build Status](https://secure.travis-ci.org/auth0/node-jsonwebtoken.svg?branch=master)](http://travis-ci.org/auth0/node-jsonwebtoken) | [![Dependency Status](https://david-dm.org/auth0/node-jsonwebtoken.svg)](https://david-dm.org/auth0/node-jsonwebtoken) | + + +An implementation of [JSON Web Tokens](https://tools.ietf.org/html/rfc7519). + +This was developed against `draft-ietf-oauth-json-web-token-08`. It makes use of [node-jws](https://github.com/brianloveswords/node-jws) + +# Install + +```bash +$ npm install jsonwebtoken +``` + +# Migration notes + +* [From v8 to v9](https://github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v8-to-v9) +* [From v7 to v8](https://github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v7-to-v8) + +# Usage + +### jwt.sign(payload, secretOrPrivateKey, [options, callback]) + +(Asynchronous) If a callback is supplied, the callback is called with the `err` or the JWT. + +(Synchronous) Returns the JsonWebToken as string + +`payload` could be an object literal, buffer or string representing valid JSON. +> **Please _note_ that** `exp` or any other claim is only set if the payload is an object literal. Buffer or string payloads are not checked for JSON validity. + +> If `payload` is not a buffer or a string, it will be coerced into a string using `JSON.stringify`. + +`secretOrPrivateKey` is a string (utf-8 encoded), buffer, object, or KeyObject containing either the secret for HMAC algorithms or the PEM +encoded private key for RSA and ECDSA. In case of a private key with passphrase an object `{ key, passphrase }` can be used (based on [crypto documentation](https://nodejs.org/api/crypto.html#crypto_sign_sign_private_key_output_format)), in this case be sure you pass the `algorithm` option. +When signing with RSA algorithms the minimum modulus length is 2048 except when the allowInsecureKeySizes option is set to true. Private keys below this size will be rejected with an error. + +`options`: + +* `algorithm` (default: `HS256`) +* `expiresIn`: expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms). + > Eg: `60`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`). +* `notBefore`: expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms). + > Eg: `60`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`). +* `audience` +* `issuer` +* `jwtid` +* `subject` +* `noTimestamp` +* `header` +* `keyid` +* `mutatePayload`: if true, the sign function will modify the payload object directly. This is useful if you need a raw reference to the payload after claims have been applied to it but before it has been encoded into a token. +* `allowInsecureKeySizes`: if true allows private keys with a modulus below 2048 to be used for RSA +* `allowInvalidAsymmetricKeyTypes`: if true, allows asymmetric keys which do not match the specified algorithm. This option is intended only for backwards compatability and should be avoided. + + + +> There are no default values for `expiresIn`, `notBefore`, `audience`, `subject`, `issuer`. These claims can also be provided in the payload directly with `exp`, `nbf`, `aud`, `sub` and `iss` respectively, but you **_can't_** include in both places. + +Remember that `exp`, `nbf` and `iat` are **NumericDate**, see related [Token Expiration (exp claim)](#token-expiration-exp-claim) + + +The header can be customized via the `options.header` object. + +Generated jwts will include an `iat` (issued at) claim by default unless `noTimestamp` is specified. If `iat` is inserted in the payload, it will be used instead of the real timestamp for calculating other things like `exp` given a timespan in `options.expiresIn`. + +Synchronous Sign with default (HMAC SHA256) + +```js +var jwt = require('jsonwebtoken'); +var token = jwt.sign({ foo: 'bar' }, 'shhhhh'); +``` + +Synchronous Sign with RSA SHA256 +```js +// sign with RSA SHA256 +var privateKey = fs.readFileSync('private.key'); +var token = jwt.sign({ foo: 'bar' }, privateKey, { algorithm: 'RS256' }); +``` + +Sign asynchronously +```js +jwt.sign({ foo: 'bar' }, privateKey, { algorithm: 'RS256' }, function(err, token) { + console.log(token); +}); +``` + +Backdate a jwt 30 seconds +```js +var older_token = jwt.sign({ foo: 'bar', iat: Math.floor(Date.now() / 1000) - 30 }, 'shhhhh'); +``` + +#### Token Expiration (exp claim) + +The standard for JWT defines an `exp` claim for expiration. The expiration is represented as a **NumericDate**: + +> A JSON numeric value representing the number of seconds from 1970-01-01T00:00:00Z UTC until the specified UTC date/time, ignoring leap seconds. This is equivalent to the IEEE Std 1003.1, 2013 Edition [POSIX.1] definition "Seconds Since the Epoch", in which each day is accounted for by exactly 86400 seconds, other than that non-integer values can be represented. See RFC 3339 [RFC3339] for details regarding date/times in general and UTC in particular. + +This means that the `exp` field should contain the number of seconds since the epoch. + +Signing a token with 1 hour of expiration: + +```javascript +jwt.sign({ + exp: Math.floor(Date.now() / 1000) + (60 * 60), + data: 'foobar' +}, 'secret'); +``` + +Another way to generate a token like this with this library is: + +```javascript +jwt.sign({ + data: 'foobar' +}, 'secret', { expiresIn: 60 * 60 }); + +//or even better: + +jwt.sign({ + data: 'foobar' +}, 'secret', { expiresIn: '1h' }); +``` + +### jwt.verify(token, secretOrPublicKey, [options, callback]) + +(Asynchronous) If a callback is supplied, function acts asynchronously. The callback is called with the decoded payload if the signature is valid and optional expiration, audience, or issuer are valid. If not, it will be called with the error. + +(Synchronous) If a callback is not supplied, function acts synchronously. Returns the payload decoded if the signature is valid and optional expiration, audience, or issuer are valid. If not, it will throw the error. + +> __Warning:__ When the token comes from an untrusted source (e.g. user input or external requests), the returned decoded payload should be treated like any other user input; please make sure to sanitize and only work with properties that are expected + +`token` is the JsonWebToken string + +`secretOrPublicKey` is a string (utf-8 encoded), buffer, or KeyObject containing either the secret for HMAC algorithms, or the PEM +encoded public key for RSA and ECDSA. +If `jwt.verify` is called asynchronous, `secretOrPublicKey` can be a function that should fetch the secret or public key. See below for a detailed example + +As mentioned in [this comment](https://github.com/auth0/node-jsonwebtoken/issues/208#issuecomment-231861138), there are other libraries that expect base64 encoded secrets (random bytes encoded using base64), if that is your case you can pass `Buffer.from(secret, 'base64')`, by doing this the secret will be decoded using base64 and the token verification will use the original random bytes. + +`options` + +* `algorithms`: List of strings with the names of the allowed algorithms. For instance, `["HS256", "HS384"]`. + > If not specified a defaults will be used based on the type of key provided + > * secret - ['HS256', 'HS384', 'HS512'] + > * rsa - ['RS256', 'RS384', 'RS512'] + > * ec - ['ES256', 'ES384', 'ES512'] + > * default - ['RS256', 'RS384', 'RS512'] +* `audience`: if you want to check audience (`aud`), provide a value here. The audience can be checked against a string, a regular expression or a list of strings and/or regular expressions. + > Eg: `"urn:foo"`, `/urn:f[o]{2}/`, `[/urn:f[o]{2}/, "urn:bar"]` +* `complete`: return an object with the decoded `{ payload, header, signature }` instead of only the usual content of the payload. +* `issuer` (optional): string or array of strings of valid values for the `iss` field. +* `jwtid` (optional): if you want to check JWT ID (`jti`), provide a string value here. +* `ignoreExpiration`: if `true` do not validate the expiration of the token. +* `ignoreNotBefore`... +* `subject`: if you want to check subject (`sub`), provide a value here +* `clockTolerance`: number of seconds to tolerate when checking the `nbf` and `exp` claims, to deal with small clock differences among different servers +* `maxAge`: the maximum allowed age for tokens to still be valid. It is expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms). + > Eg: `1000`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`). +* `clockTimestamp`: the time in seconds that should be used as the current time for all necessary comparisons. +* `nonce`: if you want to check `nonce` claim, provide a string value here. It is used on Open ID for the ID Tokens. ([Open ID implementation notes](https://openid.net/specs/openid-connect-core-1_0.html#NonceNotes)) +* `allowInvalidAsymmetricKeyTypes`: if true, allows asymmetric keys which do not match the specified algorithm. This option is intended only for backwards compatability and should be avoided. + +```js +// verify a token symmetric - synchronous +var decoded = jwt.verify(token, 'shhhhh'); +console.log(decoded.foo) // bar + +// verify a token symmetric +jwt.verify(token, 'shhhhh', function(err, decoded) { + console.log(decoded.foo) // bar +}); + +// invalid token - synchronous +try { + var decoded = jwt.verify(token, 'wrong-secret'); +} catch(err) { + // err +} + +// invalid token +jwt.verify(token, 'wrong-secret', function(err, decoded) { + // err + // decoded undefined +}); + +// verify a token asymmetric +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, function(err, decoded) { + console.log(decoded.foo) // bar +}); + +// verify audience +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo' }, function(err, decoded) { + // if audience mismatch, err == invalid audience +}); + +// verify issuer +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer' }, function(err, decoded) { + // if issuer mismatch, err == invalid issuer +}); + +// verify jwt id +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer', jwtid: 'jwtid' }, function(err, decoded) { + // if jwt id mismatch, err == invalid jwt id +}); + +// verify subject +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer', jwtid: 'jwtid', subject: 'subject' }, function(err, decoded) { + // if subject mismatch, err == invalid subject +}); + +// alg mismatch +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { algorithms: ['RS256'] }, function (err, payload) { + // if token alg != RS256, err == invalid signature +}); + +// Verify using getKey callback +// Example uses https://github.com/auth0/node-jwks-rsa as a way to fetch the keys. +var jwksClient = require('jwks-rsa'); +var client = jwksClient({ + jwksUri: 'https://sandrino.auth0.com/.well-known/jwks.json' +}); +function getKey(header, callback){ + client.getSigningKey(header.kid, function(err, key) { + var signingKey = key.publicKey || key.rsaPublicKey; + callback(null, signingKey); + }); +} + +jwt.verify(token, getKey, options, function(err, decoded) { + console.log(decoded.foo) // bar +}); + +``` + +
+Need to peek into a JWT without verifying it? (Click to expand) + +### jwt.decode(token [, options]) + +(Synchronous) Returns the decoded payload without verifying if the signature is valid. + +> __Warning:__ This will __not__ verify whether the signature is valid. You should __not__ use this for untrusted messages. You most likely want to use `jwt.verify` instead. + +> __Warning:__ When the token comes from an untrusted source (e.g. user input or external request), the returned decoded payload should be treated like any other user input; please make sure to sanitize and only work with properties that are expected + + +`token` is the JsonWebToken string + +`options`: + +* `json`: force JSON.parse on the payload even if the header doesn't contain `"typ":"JWT"`. +* `complete`: return an object with the decoded payload and header. + +Example + +```js +// get the decoded payload ignoring signature, no secretOrPrivateKey needed +var decoded = jwt.decode(token); + +// get the decoded payload and header +var decoded = jwt.decode(token, {complete: true}); +console.log(decoded.header); +console.log(decoded.payload) +``` + +
+ +## Errors & Codes +Possible thrown errors during verification. +Error is the first argument of the verification callback. + +### TokenExpiredError + +Thrown error if the token is expired. + +Error object: + +* name: 'TokenExpiredError' +* message: 'jwt expired' +* expiredAt: [ExpDate] + +```js +jwt.verify(token, 'shhhhh', function(err, decoded) { + if (err) { + /* + err = { + name: 'TokenExpiredError', + message: 'jwt expired', + expiredAt: 1408621000 + } + */ + } +}); +``` + +### JsonWebTokenError +Error object: + +* name: 'JsonWebTokenError' +* message: + * 'invalid token' - the header or payload could not be parsed + * 'jwt malformed' - the token does not have three components (delimited by a `.`) + * 'jwt signature is required' + * 'invalid signature' + * 'jwt audience invalid. expected: [OPTIONS AUDIENCE]' + * 'jwt issuer invalid. expected: [OPTIONS ISSUER]' + * 'jwt id invalid. expected: [OPTIONS JWT ID]' + * 'jwt subject invalid. expected: [OPTIONS SUBJECT]' + +```js +jwt.verify(token, 'shhhhh', function(err, decoded) { + if (err) { + /* + err = { + name: 'JsonWebTokenError', + message: 'jwt malformed' + } + */ + } +}); +``` + +### NotBeforeError +Thrown if current time is before the nbf claim. + +Error object: + +* name: 'NotBeforeError' +* message: 'jwt not active' +* date: 2018-10-04T16:10:44.000Z + +```js +jwt.verify(token, 'shhhhh', function(err, decoded) { + if (err) { + /* + err = { + name: 'NotBeforeError', + message: 'jwt not active', + date: 2018-10-04T16:10:44.000Z + } + */ + } +}); +``` + + +## Algorithms supported + +Array of supported algorithms. The following algorithms are currently supported. + +| alg Parameter Value | Digital Signature or MAC Algorithm | +|---------------------|------------------------------------------------------------------------| +| HS256 | HMAC using SHA-256 hash algorithm | +| HS384 | HMAC using SHA-384 hash algorithm | +| HS512 | HMAC using SHA-512 hash algorithm | +| RS256 | RSASSA-PKCS1-v1_5 using SHA-256 hash algorithm | +| RS384 | RSASSA-PKCS1-v1_5 using SHA-384 hash algorithm | +| RS512 | RSASSA-PKCS1-v1_5 using SHA-512 hash algorithm | +| PS256 | RSASSA-PSS using SHA-256 hash algorithm (only node ^6.12.0 OR >=8.0.0) | +| PS384 | RSASSA-PSS using SHA-384 hash algorithm (only node ^6.12.0 OR >=8.0.0) | +| PS512 | RSASSA-PSS using SHA-512 hash algorithm (only node ^6.12.0 OR >=8.0.0) | +| ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm | +| ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm | +| ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm | +| none | No digital signature or MAC value included | + +## Refreshing JWTs + +First of all, we recommend you to think carefully if auto-refreshing a JWT will not introduce any vulnerability in your system. + +We are not comfortable including this as part of the library, however, you can take a look at [this example](https://gist.github.com/ziluvatar/a3feb505c4c0ec37059054537b38fc48) to show how this could be accomplished. +Apart from that example there are [an issue](https://github.com/auth0/node-jsonwebtoken/issues/122) and [a pull request](https://github.com/auth0/node-jsonwebtoken/pull/172) to get more knowledge about this topic. + +# TODO + +* X.509 certificate chain is not checked + +## Issue Reporting + +If you have found a bug or if you have a feature request, please report them at this repository issues section. Please do not report security vulnerabilities on the public GitHub issue tracker. The [Responsible Disclosure Program](https://auth0.com/whitehat) details the procedure for disclosing security issues. + +## Author + +[Auth0](https://auth0.com) + +## License + +This project is licensed under the MIT license. See the [LICENSE](LICENSE) file for more info. diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/decode.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/decode.js new file mode 100644 index 000000000..8fe1adcd3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/decode.js @@ -0,0 +1,30 @@ +var jws = require('jws'); + +module.exports = function (jwt, options) { + options = options || {}; + var decoded = jws.decode(jwt, options); + if (!decoded) { return null; } + var payload = decoded.payload; + + //try parse the payload + if(typeof payload === 'string') { + try { + var obj = JSON.parse(payload); + if(obj !== null && typeof obj === 'object') { + payload = obj; + } + } catch (e) { } + } + + //return header if `complete` option is enabled. header includes claims + //such as `kid` and `alg` used to select the key within a JWKS needed to + //verify the signature + if (options.complete === true) { + return { + header: decoded.header, + payload: payload, + signature: decoded.signature + }; + } + return payload; +}; diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/index.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/index.js new file mode 100644 index 000000000..161eb2dd1 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/index.js @@ -0,0 +1,8 @@ +module.exports = { + decode: require('./decode'), + verify: require('./verify'), + sign: require('./sign'), + JsonWebTokenError: require('./lib/JsonWebTokenError'), + NotBeforeError: require('./lib/NotBeforeError'), + TokenExpiredError: require('./lib/TokenExpiredError'), +}; diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/JsonWebTokenError.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/JsonWebTokenError.js new file mode 100644 index 000000000..e068222a0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/JsonWebTokenError.js @@ -0,0 +1,14 @@ +var JsonWebTokenError = function (message, error) { + Error.call(this, message); + if(Error.captureStackTrace) { + Error.captureStackTrace(this, this.constructor); + } + this.name = 'JsonWebTokenError'; + this.message = message; + if (error) this.inner = error; +}; + +JsonWebTokenError.prototype = Object.create(Error.prototype); +JsonWebTokenError.prototype.constructor = JsonWebTokenError; + +module.exports = JsonWebTokenError; diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/NotBeforeError.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/NotBeforeError.js new file mode 100644 index 000000000..7b30084fb --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/NotBeforeError.js @@ -0,0 +1,13 @@ +var JsonWebTokenError = require('./JsonWebTokenError'); + +var NotBeforeError = function (message, date) { + JsonWebTokenError.call(this, message); + this.name = 'NotBeforeError'; + this.date = date; +}; + +NotBeforeError.prototype = Object.create(JsonWebTokenError.prototype); + +NotBeforeError.prototype.constructor = NotBeforeError; + +module.exports = NotBeforeError; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/TokenExpiredError.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/TokenExpiredError.js new file mode 100644 index 000000000..abb704f23 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/TokenExpiredError.js @@ -0,0 +1,13 @@ +var JsonWebTokenError = require('./JsonWebTokenError'); + +var TokenExpiredError = function (message, expiredAt) { + JsonWebTokenError.call(this, message); + this.name = 'TokenExpiredError'; + this.expiredAt = expiredAt; +}; + +TokenExpiredError.prototype = Object.create(JsonWebTokenError.prototype); + +TokenExpiredError.prototype.constructor = TokenExpiredError; + +module.exports = TokenExpiredError; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/asymmetricKeyDetailsSupported.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/asymmetricKeyDetailsSupported.js new file mode 100644 index 000000000..a6ede56e3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/asymmetricKeyDetailsSupported.js @@ -0,0 +1,3 @@ +const semver = require('semver'); + +module.exports = semver.satisfies(process.version, '>=15.7.0'); diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/psSupported.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/psSupported.js new file mode 100644 index 000000000..8c04144a1 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/psSupported.js @@ -0,0 +1,3 @@ +var semver = require('semver'); + +module.exports = semver.satisfies(process.version, '^6.12.0 || >=8.0.0'); diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/rsaPssKeyDetailsSupported.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/rsaPssKeyDetailsSupported.js new file mode 100644 index 000000000..7fcf36846 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/rsaPssKeyDetailsSupported.js @@ -0,0 +1,3 @@ +const semver = require('semver'); + +module.exports = semver.satisfies(process.version, '>=16.9.0'); diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/timespan.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/timespan.js new file mode 100644 index 000000000..e50986908 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/timespan.js @@ -0,0 +1,18 @@ +var ms = require('ms'); + +module.exports = function (time, iat) { + var timestamp = iat || Math.floor(Date.now() / 1000); + + if (typeof time === 'string') { + var milliseconds = ms(time); + if (typeof milliseconds === 'undefined') { + return; + } + return Math.floor(timestamp + milliseconds / 1000); + } else if (typeof time === 'number') { + return timestamp + time; + } else { + return; + } + +}; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/validateAsymmetricKey.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/validateAsymmetricKey.js new file mode 100644 index 000000000..c10340b03 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/lib/validateAsymmetricKey.js @@ -0,0 +1,66 @@ +const ASYMMETRIC_KEY_DETAILS_SUPPORTED = require('./asymmetricKeyDetailsSupported'); +const RSA_PSS_KEY_DETAILS_SUPPORTED = require('./rsaPssKeyDetailsSupported'); + +const allowedAlgorithmsForKeys = { + 'ec': ['ES256', 'ES384', 'ES512'], + 'rsa': ['RS256', 'PS256', 'RS384', 'PS384', 'RS512', 'PS512'], + 'rsa-pss': ['PS256', 'PS384', 'PS512'] +}; + +const allowedCurves = { + ES256: 'prime256v1', + ES384: 'secp384r1', + ES512: 'secp521r1', +}; + +module.exports = function(algorithm, key) { + if (!algorithm || !key) return; + + const keyType = key.asymmetricKeyType; + if (!keyType) return; + + const allowedAlgorithms = allowedAlgorithmsForKeys[keyType]; + + if (!allowedAlgorithms) { + throw new Error(`Unknown key type "${keyType}".`); + } + + if (!allowedAlgorithms.includes(algorithm)) { + throw new Error(`"alg" parameter for "${keyType}" key type must be one of: ${allowedAlgorithms.join(', ')}.`) + } + + /* + * Ignore the next block from test coverage because it gets executed + * conditionally depending on the Node version. Not ignoring it would + * prevent us from reaching the target % of coverage for versions of + * Node under 15.7.0. + */ + /* istanbul ignore next */ + if (ASYMMETRIC_KEY_DETAILS_SUPPORTED) { + switch (keyType) { + case 'ec': + const keyCurve = key.asymmetricKeyDetails.namedCurve; + const allowedCurve = allowedCurves[algorithm]; + + if (keyCurve !== allowedCurve) { + throw new Error(`"alg" parameter "${algorithm}" requires curve "${allowedCurve}".`); + } + break; + + case 'rsa-pss': + if (RSA_PSS_KEY_DETAILS_SUPPORTED) { + const length = parseInt(algorithm.slice(-3), 10); + const { hashAlgorithm, mgf1HashAlgorithm, saltLength } = key.asymmetricKeyDetails; + + if (hashAlgorithm !== `sha${length}` || mgf1HashAlgorithm !== hashAlgorithm) { + throw new Error(`Invalid key for this operation, its RSA-PSS parameters do not meet the requirements of "alg" ${algorithm}.`); + } + + if (saltLength !== undefined && saltLength > length >> 3) { + throw new Error(`Invalid key for this operation, its RSA-PSS parameter saltLength does not meet the requirements of "alg" ${algorithm}.`) + } + } + break; + } + } +} diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/package.json b/week-3/02-course-app-easy/node_modules/jsonwebtoken/package.json new file mode 100644 index 000000000..81f78da07 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/package.json @@ -0,0 +1,71 @@ +{ + "name": "jsonwebtoken", + "version": "9.0.2", + "description": "JSON Web Token implementation (symmetric and asymmetric)", + "main": "index.js", + "nyc": { + "check-coverage": true, + "lines": 95, + "statements": 95, + "functions": 100, + "branches": 95, + "exclude": [ + "./test/**" + ], + "reporter": [ + "json", + "lcov", + "text-summary" + ] + }, + "scripts": { + "lint": "eslint .", + "coverage": "nyc mocha --use_strict", + "test": "npm run lint && npm run coverage && cost-of-modules" + }, + "repository": { + "type": "git", + "url": "https://github.com/auth0/node-jsonwebtoken" + }, + "keywords": [ + "jwt" + ], + "author": "auth0", + "license": "MIT", + "bugs": { + "url": "https://github.com/auth0/node-jsonwebtoken/issues" + }, + "dependencies": { + "jws": "^3.2.2", + "lodash.includes": "^4.3.0", + "lodash.isboolean": "^3.0.3", + "lodash.isinteger": "^4.0.4", + "lodash.isnumber": "^3.0.3", + "lodash.isplainobject": "^4.0.6", + "lodash.isstring": "^4.0.1", + "lodash.once": "^4.0.0", + "ms": "^2.1.1", + "semver": "^7.5.4" + }, + "devDependencies": { + "atob": "^2.1.2", + "chai": "^4.1.2", + "conventional-changelog": "~1.1.0", + "cost-of-modules": "^1.0.1", + "eslint": "^4.19.1", + "mocha": "^5.2.0", + "nsp": "^2.6.2", + "nyc": "^11.9.0", + "sinon": "^6.0.0" + }, + "engines": { + "npm": ">=6", + "node": ">=12" + }, + "files": [ + "lib", + "decode.js", + "sign.js", + "verify.js" + ] +} diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/sign.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/sign.js new file mode 100644 index 000000000..82bf526e2 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/sign.js @@ -0,0 +1,253 @@ +const timespan = require('./lib/timespan'); +const PS_SUPPORTED = require('./lib/psSupported'); +const validateAsymmetricKey = require('./lib/validateAsymmetricKey'); +const jws = require('jws'); +const includes = require('lodash.includes'); +const isBoolean = require('lodash.isboolean'); +const isInteger = require('lodash.isinteger'); +const isNumber = require('lodash.isnumber'); +const isPlainObject = require('lodash.isplainobject'); +const isString = require('lodash.isstring'); +const once = require('lodash.once'); +const { KeyObject, createSecretKey, createPrivateKey } = require('crypto') + +const SUPPORTED_ALGS = ['RS256', 'RS384', 'RS512', 'ES256', 'ES384', 'ES512', 'HS256', 'HS384', 'HS512', 'none']; +if (PS_SUPPORTED) { + SUPPORTED_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512'); +} + +const sign_options_schema = { + expiresIn: { isValid: function(value) { return isInteger(value) || (isString(value) && value); }, message: '"expiresIn" should be a number of seconds or string representing a timespan' }, + notBefore: { isValid: function(value) { return isInteger(value) || (isString(value) && value); }, message: '"notBefore" should be a number of seconds or string representing a timespan' }, + audience: { isValid: function(value) { return isString(value) || Array.isArray(value); }, message: '"audience" must be a string or array' }, + algorithm: { isValid: includes.bind(null, SUPPORTED_ALGS), message: '"algorithm" must be a valid string enum value' }, + header: { isValid: isPlainObject, message: '"header" must be an object' }, + encoding: { isValid: isString, message: '"encoding" must be a string' }, + issuer: { isValid: isString, message: '"issuer" must be a string' }, + subject: { isValid: isString, message: '"subject" must be a string' }, + jwtid: { isValid: isString, message: '"jwtid" must be a string' }, + noTimestamp: { isValid: isBoolean, message: '"noTimestamp" must be a boolean' }, + keyid: { isValid: isString, message: '"keyid" must be a string' }, + mutatePayload: { isValid: isBoolean, message: '"mutatePayload" must be a boolean' }, + allowInsecureKeySizes: { isValid: isBoolean, message: '"allowInsecureKeySizes" must be a boolean'}, + allowInvalidAsymmetricKeyTypes: { isValid: isBoolean, message: '"allowInvalidAsymmetricKeyTypes" must be a boolean'} +}; + +const registered_claims_schema = { + iat: { isValid: isNumber, message: '"iat" should be a number of seconds' }, + exp: { isValid: isNumber, message: '"exp" should be a number of seconds' }, + nbf: { isValid: isNumber, message: '"nbf" should be a number of seconds' } +}; + +function validate(schema, allowUnknown, object, parameterName) { + if (!isPlainObject(object)) { + throw new Error('Expected "' + parameterName + '" to be a plain object.'); + } + Object.keys(object) + .forEach(function(key) { + const validator = schema[key]; + if (!validator) { + if (!allowUnknown) { + throw new Error('"' + key + '" is not allowed in "' + parameterName + '"'); + } + return; + } + if (!validator.isValid(object[key])) { + throw new Error(validator.message); + } + }); +} + +function validateOptions(options) { + return validate(sign_options_schema, false, options, 'options'); +} + +function validatePayload(payload) { + return validate(registered_claims_schema, true, payload, 'payload'); +} + +const options_to_payload = { + 'audience': 'aud', + 'issuer': 'iss', + 'subject': 'sub', + 'jwtid': 'jti' +}; + +const options_for_objects = [ + 'expiresIn', + 'notBefore', + 'noTimestamp', + 'audience', + 'issuer', + 'subject', + 'jwtid', +]; + +module.exports = function (payload, secretOrPrivateKey, options, callback) { + if (typeof options === 'function') { + callback = options; + options = {}; + } else { + options = options || {}; + } + + const isObjectPayload = typeof payload === 'object' && + !Buffer.isBuffer(payload); + + const header = Object.assign({ + alg: options.algorithm || 'HS256', + typ: isObjectPayload ? 'JWT' : undefined, + kid: options.keyid + }, options.header); + + function failure(err) { + if (callback) { + return callback(err); + } + throw err; + } + + if (!secretOrPrivateKey && options.algorithm !== 'none') { + return failure(new Error('secretOrPrivateKey must have a value')); + } + + if (secretOrPrivateKey != null && !(secretOrPrivateKey instanceof KeyObject)) { + try { + secretOrPrivateKey = createPrivateKey(secretOrPrivateKey) + } catch (_) { + try { + secretOrPrivateKey = createSecretKey(typeof secretOrPrivateKey === 'string' ? Buffer.from(secretOrPrivateKey) : secretOrPrivateKey) + } catch (_) { + return failure(new Error('secretOrPrivateKey is not valid key material')); + } + } + } + + if (header.alg.startsWith('HS') && secretOrPrivateKey.type !== 'secret') { + return failure(new Error((`secretOrPrivateKey must be a symmetric key when using ${header.alg}`))) + } else if (/^(?:RS|PS|ES)/.test(header.alg)) { + if (secretOrPrivateKey.type !== 'private') { + return failure(new Error((`secretOrPrivateKey must be an asymmetric key when using ${header.alg}`))) + } + if (!options.allowInsecureKeySizes && + !header.alg.startsWith('ES') && + secretOrPrivateKey.asymmetricKeyDetails !== undefined && //KeyObject.asymmetricKeyDetails is supported in Node 15+ + secretOrPrivateKey.asymmetricKeyDetails.modulusLength < 2048) { + return failure(new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`)); + } + } + + if (typeof payload === 'undefined') { + return failure(new Error('payload is required')); + } else if (isObjectPayload) { + try { + validatePayload(payload); + } + catch (error) { + return failure(error); + } + if (!options.mutatePayload) { + payload = Object.assign({},payload); + } + } else { + const invalid_options = options_for_objects.filter(function (opt) { + return typeof options[opt] !== 'undefined'; + }); + + if (invalid_options.length > 0) { + return failure(new Error('invalid ' + invalid_options.join(',') + ' option for ' + (typeof payload ) + ' payload')); + } + } + + if (typeof payload.exp !== 'undefined' && typeof options.expiresIn !== 'undefined') { + return failure(new Error('Bad "options.expiresIn" option the payload already has an "exp" property.')); + } + + if (typeof payload.nbf !== 'undefined' && typeof options.notBefore !== 'undefined') { + return failure(new Error('Bad "options.notBefore" option the payload already has an "nbf" property.')); + } + + try { + validateOptions(options); + } + catch (error) { + return failure(error); + } + + if (!options.allowInvalidAsymmetricKeyTypes) { + try { + validateAsymmetricKey(header.alg, secretOrPrivateKey); + } catch (error) { + return failure(error); + } + } + + const timestamp = payload.iat || Math.floor(Date.now() / 1000); + + if (options.noTimestamp) { + delete payload.iat; + } else if (isObjectPayload) { + payload.iat = timestamp; + } + + if (typeof options.notBefore !== 'undefined') { + try { + payload.nbf = timespan(options.notBefore, timestamp); + } + catch (err) { + return failure(err); + } + if (typeof payload.nbf === 'undefined') { + return failure(new Error('"notBefore" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60')); + } + } + + if (typeof options.expiresIn !== 'undefined' && typeof payload === 'object') { + try { + payload.exp = timespan(options.expiresIn, timestamp); + } + catch (err) { + return failure(err); + } + if (typeof payload.exp === 'undefined') { + return failure(new Error('"expiresIn" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60')); + } + } + + Object.keys(options_to_payload).forEach(function (key) { + const claim = options_to_payload[key]; + if (typeof options[key] !== 'undefined') { + if (typeof payload[claim] !== 'undefined') { + return failure(new Error('Bad "options.' + key + '" option. The payload already has an "' + claim + '" property.')); + } + payload[claim] = options[key]; + } + }); + + const encoding = options.encoding || 'utf8'; + + if (typeof callback === 'function') { + callback = callback && once(callback); + + jws.createSign({ + header: header, + privateKey: secretOrPrivateKey, + payload: payload, + encoding: encoding + }).once('error', callback) + .once('done', function (signature) { + // TODO: Remove in favor of the modulus length check before signing once node 15+ is the minimum supported version + if(!options.allowInsecureKeySizes && /^(?:RS|PS)/.test(header.alg) && signature.length < 256) { + return callback(new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`)) + } + callback(null, signature); + }); + } else { + let signature = jws.sign({header: header, payload: payload, secret: secretOrPrivateKey, encoding: encoding}); + // TODO: Remove in favor of the modulus length check before signing once node 15+ is the minimum supported version + if(!options.allowInsecureKeySizes && /^(?:RS|PS)/.test(header.alg) && signature.length < 256) { + throw new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`) + } + return signature + } +}; diff --git a/week-3/02-course-app-easy/node_modules/jsonwebtoken/verify.js b/week-3/02-course-app-easy/node_modules/jsonwebtoken/verify.js new file mode 100644 index 000000000..cdbfdc45f --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jsonwebtoken/verify.js @@ -0,0 +1,263 @@ +const JsonWebTokenError = require('./lib/JsonWebTokenError'); +const NotBeforeError = require('./lib/NotBeforeError'); +const TokenExpiredError = require('./lib/TokenExpiredError'); +const decode = require('./decode'); +const timespan = require('./lib/timespan'); +const validateAsymmetricKey = require('./lib/validateAsymmetricKey'); +const PS_SUPPORTED = require('./lib/psSupported'); +const jws = require('jws'); +const {KeyObject, createSecretKey, createPublicKey} = require("crypto"); + +const PUB_KEY_ALGS = ['RS256', 'RS384', 'RS512']; +const EC_KEY_ALGS = ['ES256', 'ES384', 'ES512']; +const RSA_KEY_ALGS = ['RS256', 'RS384', 'RS512']; +const HS_ALGS = ['HS256', 'HS384', 'HS512']; + +if (PS_SUPPORTED) { + PUB_KEY_ALGS.splice(PUB_KEY_ALGS.length, 0, 'PS256', 'PS384', 'PS512'); + RSA_KEY_ALGS.splice(RSA_KEY_ALGS.length, 0, 'PS256', 'PS384', 'PS512'); +} + +module.exports = function (jwtString, secretOrPublicKey, options, callback) { + if ((typeof options === 'function') && !callback) { + callback = options; + options = {}; + } + + if (!options) { + options = {}; + } + + //clone this object since we are going to mutate it. + options = Object.assign({}, options); + + let done; + + if (callback) { + done = callback; + } else { + done = function(err, data) { + if (err) throw err; + return data; + }; + } + + if (options.clockTimestamp && typeof options.clockTimestamp !== 'number') { + return done(new JsonWebTokenError('clockTimestamp must be a number')); + } + + if (options.nonce !== undefined && (typeof options.nonce !== 'string' || options.nonce.trim() === '')) { + return done(new JsonWebTokenError('nonce must be a non-empty string')); + } + + if (options.allowInvalidAsymmetricKeyTypes !== undefined && typeof options.allowInvalidAsymmetricKeyTypes !== 'boolean') { + return done(new JsonWebTokenError('allowInvalidAsymmetricKeyTypes must be a boolean')); + } + + const clockTimestamp = options.clockTimestamp || Math.floor(Date.now() / 1000); + + if (!jwtString){ + return done(new JsonWebTokenError('jwt must be provided')); + } + + if (typeof jwtString !== 'string') { + return done(new JsonWebTokenError('jwt must be a string')); + } + + const parts = jwtString.split('.'); + + if (parts.length !== 3){ + return done(new JsonWebTokenError('jwt malformed')); + } + + let decodedToken; + + try { + decodedToken = decode(jwtString, { complete: true }); + } catch(err) { + return done(err); + } + + if (!decodedToken) { + return done(new JsonWebTokenError('invalid token')); + } + + const header = decodedToken.header; + let getSecret; + + if(typeof secretOrPublicKey === 'function') { + if(!callback) { + return done(new JsonWebTokenError('verify must be called asynchronous if secret or public key is provided as a callback')); + } + + getSecret = secretOrPublicKey; + } + else { + getSecret = function(header, secretCallback) { + return secretCallback(null, secretOrPublicKey); + }; + } + + return getSecret(header, function(err, secretOrPublicKey) { + if(err) { + return done(new JsonWebTokenError('error in secret or public key callback: ' + err.message)); + } + + const hasSignature = parts[2].trim() !== ''; + + if (!hasSignature && secretOrPublicKey){ + return done(new JsonWebTokenError('jwt signature is required')); + } + + if (hasSignature && !secretOrPublicKey) { + return done(new JsonWebTokenError('secret or public key must be provided')); + } + + if (!hasSignature && !options.algorithms) { + return done(new JsonWebTokenError('please specify "none" in "algorithms" to verify unsigned tokens')); + } + + if (secretOrPublicKey != null && !(secretOrPublicKey instanceof KeyObject)) { + try { + secretOrPublicKey = createPublicKey(secretOrPublicKey); + } catch (_) { + try { + secretOrPublicKey = createSecretKey(typeof secretOrPublicKey === 'string' ? Buffer.from(secretOrPublicKey) : secretOrPublicKey); + } catch (_) { + return done(new JsonWebTokenError('secretOrPublicKey is not valid key material')) + } + } + } + + if (!options.algorithms) { + if (secretOrPublicKey.type === 'secret') { + options.algorithms = HS_ALGS; + } else if (['rsa', 'rsa-pss'].includes(secretOrPublicKey.asymmetricKeyType)) { + options.algorithms = RSA_KEY_ALGS + } else if (secretOrPublicKey.asymmetricKeyType === 'ec') { + options.algorithms = EC_KEY_ALGS + } else { + options.algorithms = PUB_KEY_ALGS + } + } + + if (options.algorithms.indexOf(decodedToken.header.alg) === -1) { + return done(new JsonWebTokenError('invalid algorithm')); + } + + if (header.alg.startsWith('HS') && secretOrPublicKey.type !== 'secret') { + return done(new JsonWebTokenError((`secretOrPublicKey must be a symmetric key when using ${header.alg}`))) + } else if (/^(?:RS|PS|ES)/.test(header.alg) && secretOrPublicKey.type !== 'public') { + return done(new JsonWebTokenError((`secretOrPublicKey must be an asymmetric key when using ${header.alg}`))) + } + + if (!options.allowInvalidAsymmetricKeyTypes) { + try { + validateAsymmetricKey(header.alg, secretOrPublicKey); + } catch (e) { + return done(e); + } + } + + let valid; + + try { + valid = jws.verify(jwtString, decodedToken.header.alg, secretOrPublicKey); + } catch (e) { + return done(e); + } + + if (!valid) { + return done(new JsonWebTokenError('invalid signature')); + } + + const payload = decodedToken.payload; + + if (typeof payload.nbf !== 'undefined' && !options.ignoreNotBefore) { + if (typeof payload.nbf !== 'number') { + return done(new JsonWebTokenError('invalid nbf value')); + } + if (payload.nbf > clockTimestamp + (options.clockTolerance || 0)) { + return done(new NotBeforeError('jwt not active', new Date(payload.nbf * 1000))); + } + } + + if (typeof payload.exp !== 'undefined' && !options.ignoreExpiration) { + if (typeof payload.exp !== 'number') { + return done(new JsonWebTokenError('invalid exp value')); + } + if (clockTimestamp >= payload.exp + (options.clockTolerance || 0)) { + return done(new TokenExpiredError('jwt expired', new Date(payload.exp * 1000))); + } + } + + if (options.audience) { + const audiences = Array.isArray(options.audience) ? options.audience : [options.audience]; + const target = Array.isArray(payload.aud) ? payload.aud : [payload.aud]; + + const match = target.some(function (targetAudience) { + return audiences.some(function (audience) { + return audience instanceof RegExp ? audience.test(targetAudience) : audience === targetAudience; + }); + }); + + if (!match) { + return done(new JsonWebTokenError('jwt audience invalid. expected: ' + audiences.join(' or '))); + } + } + + if (options.issuer) { + const invalid_issuer = + (typeof options.issuer === 'string' && payload.iss !== options.issuer) || + (Array.isArray(options.issuer) && options.issuer.indexOf(payload.iss) === -1); + + if (invalid_issuer) { + return done(new JsonWebTokenError('jwt issuer invalid. expected: ' + options.issuer)); + } + } + + if (options.subject) { + if (payload.sub !== options.subject) { + return done(new JsonWebTokenError('jwt subject invalid. expected: ' + options.subject)); + } + } + + if (options.jwtid) { + if (payload.jti !== options.jwtid) { + return done(new JsonWebTokenError('jwt jwtid invalid. expected: ' + options.jwtid)); + } + } + + if (options.nonce) { + if (payload.nonce !== options.nonce) { + return done(new JsonWebTokenError('jwt nonce invalid. expected: ' + options.nonce)); + } + } + + if (options.maxAge) { + if (typeof payload.iat !== 'number') { + return done(new JsonWebTokenError('iat required when maxAge is specified')); + } + + const maxAgeTimestamp = timespan(options.maxAge, payload.iat); + if (typeof maxAgeTimestamp === 'undefined') { + return done(new JsonWebTokenError('"maxAge" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60')); + } + if (clockTimestamp >= maxAgeTimestamp + (options.clockTolerance || 0)) { + return done(new TokenExpiredError('maxAge exceeded', new Date(maxAgeTimestamp * 1000))); + } + } + + if (options.complete === true) { + const signature = decodedToken.signature; + + return done(null, { + header: header, + payload: payload, + signature: signature + }); + } + + return done(null, payload); + }); +}; diff --git a/week-3/02-course-app-easy/node_modules/jwa/LICENSE b/week-3/02-course-app-easy/node_modules/jwa/LICENSE new file mode 100644 index 000000000..caeb8495c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jwa/LICENSE @@ -0,0 +1,17 @@ +Copyright (c) 2013 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the +Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/jwa/README.md b/week-3/02-course-app-easy/node_modules/jwa/README.md new file mode 100644 index 000000000..fb433e238 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jwa/README.md @@ -0,0 +1,150 @@ +# node-jwa [![Build Status](https://travis-ci.org/brianloveswords/node-jwa.svg?branch=master)](https://travis-ci.org/brianloveswords/node-jwa) + +A +[JSON Web Algorithms](http://tools.ietf.org/id/draft-ietf-jose-json-web-algorithms-08.html) +implementation focusing (exclusively, at this point) on the algorithms necessary for +[JSON Web Signatures](http://self-issued.info/docs/draft-ietf-jose-json-web-signature.html). + +This library supports all of the required, recommended and optional cryptographic algorithms for JWS: + +alg Parameter Value | Digital Signature or MAC Algorithm +----------------|---------------------------- +HS256 | HMAC using SHA-256 hash algorithm +HS384 | HMAC using SHA-384 hash algorithm +HS512 | HMAC using SHA-512 hash algorithm +RS256 | RSASSA using SHA-256 hash algorithm +RS384 | RSASSA using SHA-384 hash algorithm +RS512 | RSASSA using SHA-512 hash algorithm +PS256 | RSASSA-PSS using SHA-256 hash algorithm +PS384 | RSASSA-PSS using SHA-384 hash algorithm +PS512 | RSASSA-PSS using SHA-512 hash algorithm +ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm +ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm +ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm +none | No digital signature or MAC value included + +Please note that PS* only works on Node 6.12+ (excluding 7.x). + +# Requirements + +In order to run the tests, a recent version of OpenSSL is +required. **The version that comes with OS X (OpenSSL 0.9.8r 8 Feb +2011) is not recent enough**, as it does not fully support ECDSA +keys. You'll need to use a version > 1.0.0; I tested with OpenSSL 1.0.1c 10 May 2012. + +# Testing + +To run the tests, do + +```bash +$ npm test +``` + +This will generate a bunch of keypairs to use in testing. If you want to +generate new keypairs, do `make clean` before running `npm test` again. + +## Methodology + +I spawn `openssl dgst -sign` to test OpenSSL sign → JS verify and +`openssl dgst -verify` to test JS sign → OpenSSL verify for each of the +RSA and ECDSA algorithms. + +# Usage + +## jwa(algorithm) + +Creates a new `jwa` object with `sign` and `verify` methods for the +algorithm. Valid values for algorithm can be found in the table above +(`'HS256'`, `'HS384'`, etc) and are case-insensitive. Passing an invalid +algorithm value will throw a `TypeError`. + + +## jwa#sign(input, secretOrPrivateKey) + +Sign some input with either a secret for HMAC algorithms, or a private +key for RSA and ECDSA algorithms. + +If input is not already a string or buffer, `JSON.stringify` will be +called on it to attempt to coerce it. + +For the HMAC algorithm, `secretOrPrivateKey` should be a string or a +buffer. For ECDSA and RSA, the value should be a string representing a +PEM encoded **private** key. + +Output [base64url](http://en.wikipedia.org/wiki/Base64#URL_applications) +formatted. This is for convenience as JWS expects the signature in this +format. If your application needs the output in a different format, +[please open an issue](https://github.com/brianloveswords/node-jwa/issues). In +the meantime, you can use +[brianloveswords/base64url](https://github.com/brianloveswords/base64url) +to decode the signature. + +As of nodejs *v0.11.8*, SPKAC support was introduce. If your nodeJs +version satisfies, then you can pass an object `{ key: '..', passphrase: '...' }` + + +## jwa#verify(input, signature, secretOrPublicKey) + +Verify a signature. Returns `true` or `false`. + +`signature` should be a base64url encoded string. + +For the HMAC algorithm, `secretOrPublicKey` should be a string or a +buffer. For ECDSA and RSA, the value should be a string represented a +PEM encoded **public** key. + + +# Example + +HMAC +```js +const jwa = require('jwa'); + +const hmac = jwa('HS256'); +const input = 'super important stuff'; +const secret = 'shhhhhh'; + +const signature = hmac.sign(input, secret); +hmac.verify(input, signature, secret) // === true +hmac.verify(input, signature, 'trickery!') // === false +``` + +With keys +```js +const fs = require('fs'); +const jwa = require('jwa'); +const privateKey = fs.readFileSync(__dirname + '/ecdsa-p521-private.pem'); +const publicKey = fs.readFileSync(__dirname + '/ecdsa-p521-public.pem'); + +const ecdsa = jwa('ES512'); +const input = 'very important stuff'; + +const signature = ecdsa.sign(input, privateKey); +ecdsa.verify(input, signature, publicKey) // === true +``` +## License + +MIT + +``` +Copyright (c) 2013 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +``` diff --git a/week-3/02-course-app-easy/node_modules/jwa/index.js b/week-3/02-course-app-easy/node_modules/jwa/index.js new file mode 100644 index 000000000..e71e6d19e --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jwa/index.js @@ -0,0 +1,252 @@ +var bufferEqual = require('buffer-equal-constant-time'); +var Buffer = require('safe-buffer').Buffer; +var crypto = require('crypto'); +var formatEcdsa = require('ecdsa-sig-formatter'); +var util = require('util'); + +var MSG_INVALID_ALGORITHM = '"%s" is not a valid algorithm.\n Supported algorithms are:\n "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "PS256", "PS384", "PS512", "ES256", "ES384", "ES512" and "none".' +var MSG_INVALID_SECRET = 'secret must be a string or buffer'; +var MSG_INVALID_VERIFIER_KEY = 'key must be a string or a buffer'; +var MSG_INVALID_SIGNER_KEY = 'key must be a string, a buffer or an object'; + +var supportsKeyObjects = typeof crypto.createPublicKey === 'function'; +if (supportsKeyObjects) { + MSG_INVALID_VERIFIER_KEY += ' or a KeyObject'; + MSG_INVALID_SECRET += 'or a KeyObject'; +} + +function checkIsPublicKey(key) { + if (Buffer.isBuffer(key)) { + return; + } + + if (typeof key === 'string') { + return; + } + + if (!supportsKeyObjects) { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key !== 'object') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key.type !== 'string') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key.asymmetricKeyType !== 'string') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key.export !== 'function') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } +}; + +function checkIsPrivateKey(key) { + if (Buffer.isBuffer(key)) { + return; + } + + if (typeof key === 'string') { + return; + } + + if (typeof key === 'object') { + return; + } + + throw typeError(MSG_INVALID_SIGNER_KEY); +}; + +function checkIsSecretKey(key) { + if (Buffer.isBuffer(key)) { + return; + } + + if (typeof key === 'string') { + return key; + } + + if (!supportsKeyObjects) { + throw typeError(MSG_INVALID_SECRET); + } + + if (typeof key !== 'object') { + throw typeError(MSG_INVALID_SECRET); + } + + if (key.type !== 'secret') { + throw typeError(MSG_INVALID_SECRET); + } + + if (typeof key.export !== 'function') { + throw typeError(MSG_INVALID_SECRET); + } +} + +function fromBase64(base64) { + return base64 + .replace(/=/g, '') + .replace(/\+/g, '-') + .replace(/\//g, '_'); +} + +function toBase64(base64url) { + base64url = base64url.toString(); + + var padding = 4 - base64url.length % 4; + if (padding !== 4) { + for (var i = 0; i < padding; ++i) { + base64url += '='; + } + } + + return base64url + .replace(/\-/g, '+') + .replace(/_/g, '/'); +} + +function typeError(template) { + var args = [].slice.call(arguments, 1); + var errMsg = util.format.bind(util, template).apply(null, args); + return new TypeError(errMsg); +} + +function bufferOrString(obj) { + return Buffer.isBuffer(obj) || typeof obj === 'string'; +} + +function normalizeInput(thing) { + if (!bufferOrString(thing)) + thing = JSON.stringify(thing); + return thing; +} + +function createHmacSigner(bits) { + return function sign(thing, secret) { + checkIsSecretKey(secret); + thing = normalizeInput(thing); + var hmac = crypto.createHmac('sha' + bits, secret); + var sig = (hmac.update(thing), hmac.digest('base64')) + return fromBase64(sig); + } +} + +function createHmacVerifier(bits) { + return function verify(thing, signature, secret) { + var computedSig = createHmacSigner(bits)(thing, secret); + return bufferEqual(Buffer.from(signature), Buffer.from(computedSig)); + } +} + +function createKeySigner(bits) { + return function sign(thing, privateKey) { + checkIsPrivateKey(privateKey); + thing = normalizeInput(thing); + // Even though we are specifying "RSA" here, this works with ECDSA + // keys as well. + var signer = crypto.createSign('RSA-SHA' + bits); + var sig = (signer.update(thing), signer.sign(privateKey, 'base64')); + return fromBase64(sig); + } +} + +function createKeyVerifier(bits) { + return function verify(thing, signature, publicKey) { + checkIsPublicKey(publicKey); + thing = normalizeInput(thing); + signature = toBase64(signature); + var verifier = crypto.createVerify('RSA-SHA' + bits); + verifier.update(thing); + return verifier.verify(publicKey, signature, 'base64'); + } +} + +function createPSSKeySigner(bits) { + return function sign(thing, privateKey) { + checkIsPrivateKey(privateKey); + thing = normalizeInput(thing); + var signer = crypto.createSign('RSA-SHA' + bits); + var sig = (signer.update(thing), signer.sign({ + key: privateKey, + padding: crypto.constants.RSA_PKCS1_PSS_PADDING, + saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST + }, 'base64')); + return fromBase64(sig); + } +} + +function createPSSKeyVerifier(bits) { + return function verify(thing, signature, publicKey) { + checkIsPublicKey(publicKey); + thing = normalizeInput(thing); + signature = toBase64(signature); + var verifier = crypto.createVerify('RSA-SHA' + bits); + verifier.update(thing); + return verifier.verify({ + key: publicKey, + padding: crypto.constants.RSA_PKCS1_PSS_PADDING, + saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST + }, signature, 'base64'); + } +} + +function createECDSASigner(bits) { + var inner = createKeySigner(bits); + return function sign() { + var signature = inner.apply(null, arguments); + signature = formatEcdsa.derToJose(signature, 'ES' + bits); + return signature; + }; +} + +function createECDSAVerifer(bits) { + var inner = createKeyVerifier(bits); + return function verify(thing, signature, publicKey) { + signature = formatEcdsa.joseToDer(signature, 'ES' + bits).toString('base64'); + var result = inner(thing, signature, publicKey); + return result; + }; +} + +function createNoneSigner() { + return function sign() { + return ''; + } +} + +function createNoneVerifier() { + return function verify(thing, signature) { + return signature === ''; + } +} + +module.exports = function jwa(algorithm) { + var signerFactories = { + hs: createHmacSigner, + rs: createKeySigner, + ps: createPSSKeySigner, + es: createECDSASigner, + none: createNoneSigner, + } + var verifierFactories = { + hs: createHmacVerifier, + rs: createKeyVerifier, + ps: createPSSKeyVerifier, + es: createECDSAVerifer, + none: createNoneVerifier, + } + var match = algorithm.match(/^(RS|PS|ES|HS)(256|384|512)$|^(none)$/i); + if (!match) + throw typeError(MSG_INVALID_ALGORITHM, algorithm); + var algo = (match[1] || match[3]).toLowerCase(); + var bits = match[2]; + + return { + sign: signerFactories[algo](bits), + verify: verifierFactories[algo](bits), + } +}; diff --git a/week-3/02-course-app-easy/node_modules/jwa/package.json b/week-3/02-course-app-easy/node_modules/jwa/package.json new file mode 100644 index 000000000..0777d5339 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jwa/package.json @@ -0,0 +1,37 @@ +{ + "name": "jwa", + "version": "1.4.1", + "description": "JWA implementation (supports all JWS algorithms)", + "main": "index.js", + "directories": { + "test": "test" + }, + "dependencies": { + "buffer-equal-constant-time": "1.0.1", + "ecdsa-sig-formatter": "1.0.11", + "safe-buffer": "^5.0.1" + }, + "devDependencies": { + "base64url": "^2.0.0", + "jwk-to-pem": "^2.0.1", + "semver": "4.3.6", + "tap": "6.2.0" + }, + "scripts": { + "test": "make test" + }, + "repository": { + "type": "git", + "url": "git://github.com/brianloveswords/node-jwa.git" + }, + "keywords": [ + "jwa", + "jws", + "jwt", + "rsa", + "ecdsa", + "hmac" + ], + "author": "Brian J. Brennan ", + "license": "MIT" +} diff --git a/week-3/02-course-app-easy/node_modules/jws/CHANGELOG.md b/week-3/02-course-app-easy/node_modules/jws/CHANGELOG.md new file mode 100644 index 000000000..af8fc2876 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/CHANGELOG.md @@ -0,0 +1,34 @@ +# Change Log +All notable changes to this project will be documented in this file. + +## [3.0.0] +### Changed +- **BREAKING**: `jwt.verify` now requires an `algorithm` parameter, and + `jws.createVerify` requires an `algorithm` option. The `"alg"` field + signature headers is ignored. This mitigates a critical security flaw + in the library which would allow an attacker to generate signatures with + arbitrary contents that would be accepted by `jwt.verify`. See + https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/ + for details. + +## [2.0.0] - 2015-01-30 +### Changed +- **BREAKING**: Default payload encoding changed from `binary` to + `utf8`. `utf8` is a is a more sensible default than `binary` because + many payloads, as far as I can tell, will contain user-facing + strings that could be in any language. ([6b6de48]) + +- Code reorganization, thanks [@fearphage]! ([7880050]) + +### Added +- Option in all relevant methods for `encoding`. For those few users + that might be depending on a `binary` encoding of the messages, this + is for them. ([6b6de48]) + +[unreleased]: https://github.com/brianloveswords/node-jws/compare/v2.0.0...HEAD +[2.0.0]: https://github.com/brianloveswords/node-jws/compare/v1.0.1...v2.0.0 + +[7880050]: https://github.com/brianloveswords/node-jws/commit/7880050 +[6b6de48]: https://github.com/brianloveswords/node-jws/commit/6b6de48 + +[@fearphage]: https://github.com/fearphage diff --git a/week-3/02-course-app-easy/node_modules/jws/LICENSE b/week-3/02-course-app-easy/node_modules/jws/LICENSE new file mode 100644 index 000000000..caeb8495c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/LICENSE @@ -0,0 +1,17 @@ +Copyright (c) 2013 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the +Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/jws/index.js b/week-3/02-course-app-easy/node_modules/jws/index.js new file mode 100644 index 000000000..8c8da9304 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/index.js @@ -0,0 +1,22 @@ +/*global exports*/ +var SignStream = require('./lib/sign-stream'); +var VerifyStream = require('./lib/verify-stream'); + +var ALGORITHMS = [ + 'HS256', 'HS384', 'HS512', + 'RS256', 'RS384', 'RS512', + 'PS256', 'PS384', 'PS512', + 'ES256', 'ES384', 'ES512' +]; + +exports.ALGORITHMS = ALGORITHMS; +exports.sign = SignStream.sign; +exports.verify = VerifyStream.verify; +exports.decode = VerifyStream.decode; +exports.isValid = VerifyStream.isValid; +exports.createSign = function createSign(opts) { + return new SignStream(opts); +}; +exports.createVerify = function createVerify(opts) { + return new VerifyStream(opts); +}; diff --git a/week-3/02-course-app-easy/node_modules/jws/lib/data-stream.js b/week-3/02-course-app-easy/node_modules/jws/lib/data-stream.js new file mode 100644 index 000000000..3535d31d9 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/lib/data-stream.js @@ -0,0 +1,55 @@ +/*global module, process*/ +var Buffer = require('safe-buffer').Buffer; +var Stream = require('stream'); +var util = require('util'); + +function DataStream(data) { + this.buffer = null; + this.writable = true; + this.readable = true; + + // No input + if (!data) { + this.buffer = Buffer.alloc(0); + return this; + } + + // Stream + if (typeof data.pipe === 'function') { + this.buffer = Buffer.alloc(0); + data.pipe(this); + return this; + } + + // Buffer or String + // or Object (assumedly a passworded key) + if (data.length || typeof data === 'object') { + this.buffer = data; + this.writable = false; + process.nextTick(function () { + this.emit('end', data); + this.readable = false; + this.emit('close'); + }.bind(this)); + return this; + } + + throw new TypeError('Unexpected data type ('+ typeof data + ')'); +} +util.inherits(DataStream, Stream); + +DataStream.prototype.write = function write(data) { + this.buffer = Buffer.concat([this.buffer, Buffer.from(data)]); + this.emit('data', data); +}; + +DataStream.prototype.end = function end(data) { + if (data) + this.write(data); + this.emit('end', data); + this.emit('close'); + this.writable = false; + this.readable = false; +}; + +module.exports = DataStream; diff --git a/week-3/02-course-app-easy/node_modules/jws/lib/sign-stream.js b/week-3/02-course-app-easy/node_modules/jws/lib/sign-stream.js new file mode 100644 index 000000000..6a7ee42f2 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/lib/sign-stream.js @@ -0,0 +1,78 @@ +/*global module*/ +var Buffer = require('safe-buffer').Buffer; +var DataStream = require('./data-stream'); +var jwa = require('jwa'); +var Stream = require('stream'); +var toString = require('./tostring'); +var util = require('util'); + +function base64url(string, encoding) { + return Buffer + .from(string, encoding) + .toString('base64') + .replace(/=/g, '') + .replace(/\+/g, '-') + .replace(/\//g, '_'); +} + +function jwsSecuredInput(header, payload, encoding) { + encoding = encoding || 'utf8'; + var encodedHeader = base64url(toString(header), 'binary'); + var encodedPayload = base64url(toString(payload), encoding); + return util.format('%s.%s', encodedHeader, encodedPayload); +} + +function jwsSign(opts) { + var header = opts.header; + var payload = opts.payload; + var secretOrKey = opts.secret || opts.privateKey; + var encoding = opts.encoding; + var algo = jwa(header.alg); + var securedInput = jwsSecuredInput(header, payload, encoding); + var signature = algo.sign(securedInput, secretOrKey); + return util.format('%s.%s', securedInput, signature); +} + +function SignStream(opts) { + var secret = opts.secret||opts.privateKey||opts.key; + var secretStream = new DataStream(secret); + this.readable = true; + this.header = opts.header; + this.encoding = opts.encoding; + this.secret = this.privateKey = this.key = secretStream; + this.payload = new DataStream(opts.payload); + this.secret.once('close', function () { + if (!this.payload.writable && this.readable) + this.sign(); + }.bind(this)); + + this.payload.once('close', function () { + if (!this.secret.writable && this.readable) + this.sign(); + }.bind(this)); +} +util.inherits(SignStream, Stream); + +SignStream.prototype.sign = function sign() { + try { + var signature = jwsSign({ + header: this.header, + payload: this.payload.buffer, + secret: this.secret.buffer, + encoding: this.encoding + }); + this.emit('done', signature); + this.emit('data', signature); + this.emit('end'); + this.readable = false; + return signature; + } catch (e) { + this.readable = false; + this.emit('error', e); + this.emit('close'); + } +}; + +SignStream.sign = jwsSign; + +module.exports = SignStream; diff --git a/week-3/02-course-app-easy/node_modules/jws/lib/tostring.js b/week-3/02-course-app-easy/node_modules/jws/lib/tostring.js new file mode 100644 index 000000000..f5a49a365 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/lib/tostring.js @@ -0,0 +1,10 @@ +/*global module*/ +var Buffer = require('buffer').Buffer; + +module.exports = function toString(obj) { + if (typeof obj === 'string') + return obj; + if (typeof obj === 'number' || Buffer.isBuffer(obj)) + return obj.toString(); + return JSON.stringify(obj); +}; diff --git a/week-3/02-course-app-easy/node_modules/jws/lib/verify-stream.js b/week-3/02-course-app-easy/node_modules/jws/lib/verify-stream.js new file mode 100644 index 000000000..39f7c73e2 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/lib/verify-stream.js @@ -0,0 +1,120 @@ +/*global module*/ +var Buffer = require('safe-buffer').Buffer; +var DataStream = require('./data-stream'); +var jwa = require('jwa'); +var Stream = require('stream'); +var toString = require('./tostring'); +var util = require('util'); +var JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/; + +function isObject(thing) { + return Object.prototype.toString.call(thing) === '[object Object]'; +} + +function safeJsonParse(thing) { + if (isObject(thing)) + return thing; + try { return JSON.parse(thing); } + catch (e) { return undefined; } +} + +function headerFromJWS(jwsSig) { + var encodedHeader = jwsSig.split('.', 1)[0]; + return safeJsonParse(Buffer.from(encodedHeader, 'base64').toString('binary')); +} + +function securedInputFromJWS(jwsSig) { + return jwsSig.split('.', 2).join('.'); +} + +function signatureFromJWS(jwsSig) { + return jwsSig.split('.')[2]; +} + +function payloadFromJWS(jwsSig, encoding) { + encoding = encoding || 'utf8'; + var payload = jwsSig.split('.')[1]; + return Buffer.from(payload, 'base64').toString(encoding); +} + +function isValidJws(string) { + return JWS_REGEX.test(string) && !!headerFromJWS(string); +} + +function jwsVerify(jwsSig, algorithm, secretOrKey) { + if (!algorithm) { + var err = new Error("Missing algorithm parameter for jws.verify"); + err.code = "MISSING_ALGORITHM"; + throw err; + } + jwsSig = toString(jwsSig); + var signature = signatureFromJWS(jwsSig); + var securedInput = securedInputFromJWS(jwsSig); + var algo = jwa(algorithm); + return algo.verify(securedInput, signature, secretOrKey); +} + +function jwsDecode(jwsSig, opts) { + opts = opts || {}; + jwsSig = toString(jwsSig); + + if (!isValidJws(jwsSig)) + return null; + + var header = headerFromJWS(jwsSig); + + if (!header) + return null; + + var payload = payloadFromJWS(jwsSig); + if (header.typ === 'JWT' || opts.json) + payload = JSON.parse(payload, opts.encoding); + + return { + header: header, + payload: payload, + signature: signatureFromJWS(jwsSig) + }; +} + +function VerifyStream(opts) { + opts = opts || {}; + var secretOrKey = opts.secret||opts.publicKey||opts.key; + var secretStream = new DataStream(secretOrKey); + this.readable = true; + this.algorithm = opts.algorithm; + this.encoding = opts.encoding; + this.secret = this.publicKey = this.key = secretStream; + this.signature = new DataStream(opts.signature); + this.secret.once('close', function () { + if (!this.signature.writable && this.readable) + this.verify(); + }.bind(this)); + + this.signature.once('close', function () { + if (!this.secret.writable && this.readable) + this.verify(); + }.bind(this)); +} +util.inherits(VerifyStream, Stream); +VerifyStream.prototype.verify = function verify() { + try { + var valid = jwsVerify(this.signature.buffer, this.algorithm, this.key.buffer); + var obj = jwsDecode(this.signature.buffer, this.encoding); + this.emit('done', valid, obj); + this.emit('data', valid); + this.emit('end'); + this.readable = false; + return valid; + } catch (e) { + this.readable = false; + this.emit('error', e); + this.emit('close'); + } +}; + +VerifyStream.decode = jwsDecode; +VerifyStream.isValid = isValidJws; +VerifyStream.verify = jwsVerify; + +module.exports = VerifyStream; diff --git a/week-3/02-course-app-easy/node_modules/jws/package.json b/week-3/02-course-app-easy/node_modules/jws/package.json new file mode 100644 index 000000000..3fb283757 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/package.json @@ -0,0 +1,34 @@ +{ + "name": "jws", + "version": "3.2.2", + "description": "Implementation of JSON Web Signatures", + "main": "index.js", + "directories": { + "test": "test" + }, + "scripts": { + "test": "make test" + }, + "repository": { + "type": "git", + "url": "git://github.com/brianloveswords/node-jws.git" + }, + "keywords": [ + "jws", + "json", + "web", + "signatures" + ], + "author": "Brian J Brennan", + "license": "MIT", + "readmeFilename": "readme.md", + "gitHead": "c0f6b27bcea5a2ad2e304d91c2e842e4076a6b03", + "dependencies": { + "jwa": "^1.4.1", + "safe-buffer": "^5.0.1" + }, + "devDependencies": { + "semver": "^5.1.0", + "tape": "~2.14.0" + } +} diff --git a/week-3/02-course-app-easy/node_modules/jws/readme.md b/week-3/02-course-app-easy/node_modules/jws/readme.md new file mode 100644 index 000000000..1910c9a84 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/jws/readme.md @@ -0,0 +1,255 @@ +# node-jws [![Build Status](https://secure.travis-ci.org/brianloveswords/node-jws.png)](http://travis-ci.org/brianloveswords/node-jws) + +An implementation of [JSON Web Signatures](http://self-issued.info/docs/draft-ietf-jose-json-web-signature.html). + +This was developed against `draft-ietf-jose-json-web-signature-08` and +implements the entire spec **except** X.509 Certificate Chain +signing/verifying (patches welcome). + +There are both synchronous (`jws.sign`, `jws.verify`) and streaming +(`jws.createSign`, `jws.createVerify`) APIs. + +# Install + +```bash +$ npm install jws +``` + +# Usage + +## jws.ALGORITHMS + +Array of supported algorithms. The following algorithms are currently supported. + +alg Parameter Value | Digital Signature or MAC Algorithm +----------------|---------------------------- +HS256 | HMAC using SHA-256 hash algorithm +HS384 | HMAC using SHA-384 hash algorithm +HS512 | HMAC using SHA-512 hash algorithm +RS256 | RSASSA using SHA-256 hash algorithm +RS384 | RSASSA using SHA-384 hash algorithm +RS512 | RSASSA using SHA-512 hash algorithm +PS256 | RSASSA-PSS using SHA-256 hash algorithm +PS384 | RSASSA-PSS using SHA-384 hash algorithm +PS512 | RSASSA-PSS using SHA-512 hash algorithm +ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm +ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm +ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm +none | No digital signature or MAC value included + +## jws.sign(options) + +(Synchronous) Return a JSON Web Signature for a header and a payload. + +Options: + +* `header` +* `payload` +* `secret` or `privateKey` +* `encoding` (Optional, defaults to 'utf8') + +`header` must be an object with an `alg` property. `header.alg` must be +one a value found in `jws.ALGORITHMS`. See above for a table of +supported algorithms. + +If `payload` is not a buffer or a string, it will be coerced into a string +using `JSON.stringify`. + +Example + +```js +const signature = jws.sign({ + header: { alg: 'HS256' }, + payload: 'h. jon benjamin', + secret: 'has a van', +}); +``` + +## jws.verify(signature, algorithm, secretOrKey) + +(Synchronous) Returns `true` or `false` for whether a signature matches a +secret or key. + +`signature` is a JWS Signature. `header.alg` must be a value found in `jws.ALGORITHMS`. +See above for a table of supported algorithms. `secretOrKey` is a string or +buffer containing either the secret for HMAC algorithms, or the PEM +encoded public key for RSA and ECDSA. + +Note that the `"alg"` value from the signature header is ignored. + + +## jws.decode(signature) + +(Synchronous) Returns the decoded header, decoded payload, and signature +parts of the JWS Signature. + +Returns an object with three properties, e.g. +```js +{ header: { alg: 'HS256' }, + payload: 'h. jon benjamin', + signature: 'YOWPewyGHKu4Y_0M_vtlEnNlqmFOclqp4Hy6hVHfFT4' +} +``` + +## jws.createSign(options) + +Returns a new SignStream object. + +Options: + +* `header` (required) +* `payload` +* `key` || `privateKey` || `secret` +* `encoding` (Optional, defaults to 'utf8') + +Other than `header`, all options expect a string or a buffer when the +value is known ahead of time, or a stream for convenience. +`key`/`privateKey`/`secret` may also be an object when using an encrypted +private key, see the [crypto documentation][encrypted-key-docs]. + +Example: + +```js + +// This... +jws.createSign({ + header: { alg: 'RS256' }, + privateKey: privateKeyStream, + payload: payloadStream, +}).on('done', function(signature) { + // ... +}); + +// is equivalent to this: +const signer = jws.createSign({ + header: { alg: 'RS256' }, +}); +privateKeyStream.pipe(signer.privateKey); +payloadStream.pipe(signer.payload); +signer.on('done', function(signature) { + // ... +}); +``` + +## jws.createVerify(options) + +Returns a new VerifyStream object. + +Options: + +* `signature` +* `algorithm` +* `key` || `publicKey` || `secret` +* `encoding` (Optional, defaults to 'utf8') + +All options expect a string or a buffer when the value is known ahead of +time, or a stream for convenience. + +Example: + +```js + +// This... +jws.createVerify({ + publicKey: pubKeyStream, + signature: sigStream, +}).on('done', function(verified, obj) { + // ... +}); + +// is equivilant to this: +const verifier = jws.createVerify(); +pubKeyStream.pipe(verifier.publicKey); +sigStream.pipe(verifier.signature); +verifier.on('done', function(verified, obj) { + // ... +}); +``` + +## Class: SignStream + +A `Readable Stream` that emits a single data event (the calculated +signature) when done. + +### Event: 'done' +`function (signature) { }` + +### signer.payload + +A `Writable Stream` that expects the JWS payload. Do *not* use if you +passed a `payload` option to the constructor. + +Example: + +```js +payloadStream.pipe(signer.payload); +``` + +### signer.secret
signer.key
signer.privateKey + +A `Writable Stream`. Expects the JWS secret for HMAC, or the privateKey +for ECDSA and RSA. Do *not* use if you passed a `secret` or `key` option +to the constructor. + +Example: + +```js +privateKeyStream.pipe(signer.privateKey); +``` + +## Class: VerifyStream + +This is a `Readable Stream` that emits a single data event, the result +of whether or not that signature was valid. + +### Event: 'done' +`function (valid, obj) { }` + +`valid` is a boolean for whether or not the signature is valid. + +### verifier.signature + +A `Writable Stream` that expects a JWS Signature. Do *not* use if you +passed a `signature` option to the constructor. + +### verifier.secret
verifier.key
verifier.publicKey + +A `Writable Stream` that expects a public key or secret. Do *not* use if you +passed a `key` or `secret` option to the constructor. + +# TODO + +* It feels like there should be some convenience options/APIs for + defining the algorithm rather than having to define a header object + with `{ alg: 'ES512' }` or whatever every time. + +* X.509 support, ugh + +# License + +MIT + +``` +Copyright (c) 2013-2015 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +``` + +[encrypted-key-docs]: https://nodejs.org/api/crypto.html#crypto_sign_sign_private_key_output_format diff --git a/week-3/02-course-app-easy/node_modules/lodash.includes/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.includes/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.includes/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/02-course-app-easy/node_modules/lodash.includes/README.md b/week-3/02-course-app-easy/node_modules/lodash.includes/README.md new file mode 100644 index 000000000..26e93775f --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.includes/README.md @@ -0,0 +1,18 @@ +# lodash.includes v4.3.0 + +The [lodash](https://lodash.com/) method `_.includes` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.includes +``` + +In Node.js: +```js +var includes = require('lodash.includes'); +``` + +See the [documentation](https://lodash.com/docs#includes) or [package source](https://github.com/lodash/lodash/blob/4.3.0-npm-packages/lodash.includes) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.includes/index.js b/week-3/02-course-app-easy/node_modules/lodash.includes/index.js new file mode 100644 index 000000000..e88d53380 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.includes/index.js @@ -0,0 +1,745 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + +/** `Object#toString` result references. */ +var argsTag = '[object Arguments]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + stringTag = '[object String]', + symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Used to detect unsigned integer values. */ +var reIsUint = /^(?:0|[1-9]\d*)$/; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ +function arrayMap(array, iteratee) { + var index = -1, + length = array ? array.length : 0, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; +} + +/** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ +function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ +function baseIndexOf(array, value, fromIndex) { + if (value !== value) { + return baseFindIndex(array, baseIsNaN, fromIndex); + } + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ +function baseIsNaN(value) { + return value !== value; +} + +/** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ +function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; +} + +/** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ +function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); +} + +/** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ +function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; +} + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** Built-in value references. */ +var propertyIsEnumerable = objectProto.propertyIsEnumerable; + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max; + +/** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ +function arrayLikeKeys(value, inherited) { + // Safari 8.1 makes `arguments.callee` enumerable in strict mode. + // Safari 9 makes `arguments.length` enumerable in strict mode. + var result = (isArray(value) || isArguments(value)) + ? baseTimes(value.length, String) + : []; + + var length = result.length, + skipIndexes = !!length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && (key == 'length' || isIndex(key, length)))) { + result.push(key); + } + } + return result; +} + +/** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ +function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; +} + +/** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ +function isIndex(value, length) { + length = length == null ? MAX_SAFE_INTEGER : length; + return !!length && + (typeof value == 'number' || reIsUint.test(value)) && + (value > -1 && value % 1 == 0 && value < length); +} + +/** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ +function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; +} + +/** + * Checks if `value` is in `collection`. If `collection` is a string, it's + * checked for a substring of `value`, otherwise + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * is used for equality comparisons. If `fromIndex` is negative, it's used as + * the offset from the end of `collection`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. + * @returns {boolean} Returns `true` if `value` is found, else `false`. + * @example + * + * _.includes([1, 2, 3], 1); + * // => true + * + * _.includes([1, 2, 3], 1, 2); + * // => false + * + * _.includes({ 'a': 1, 'b': 2 }, 1); + * // => true + * + * _.includes('abcd', 'bc'); + * // => true + */ +function includes(collection, value, fromIndex, guard) { + collection = isArrayLike(collection) ? collection : values(collection); + fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; + + var length = collection.length; + if (fromIndex < 0) { + fromIndex = nativeMax(length + fromIndex, 0); + } + return isString(collection) + ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) + : (!!length && baseIndexOf(collection, value, fromIndex) > -1); +} + +/** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ +function isArguments(value) { + // Safari 8.1 makes `arguments.callee` enumerable in strict mode. + return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') && + (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag); +} + +/** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ +var isArray = Array.isArray; + +/** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ +function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); +} + +/** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ +function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); +} + +/** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ +function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 8-9 which returns 'object' for typed array and other constructors. + var tag = isObject(value) ? objectToString.call(value) : ''; + return tag == funcTag || tag == genTag; +} + +/** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ +function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ +function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag); +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ +function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; +} + +/** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ +function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +/** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ +function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); +} + +/** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ +function values(object) { + return object ? baseValues(object, keys(object)) : []; +} + +module.exports = includes; diff --git a/week-3/02-course-app-easy/node_modules/lodash.includes/package.json b/week-3/02-course-app-easy/node_modules/lodash.includes/package.json new file mode 100644 index 000000000..a02e645d6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.includes/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.includes", + "version": "4.3.0", + "description": "The lodash method `_.includes` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, includes", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/lodash.isboolean/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.isboolean/LICENSE new file mode 100644 index 000000000..b054ca5a3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isboolean/LICENSE @@ -0,0 +1,22 @@ +Copyright 2012-2016 The Dojo Foundation +Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isboolean/README.md b/week-3/02-course-app-easy/node_modules/lodash.isboolean/README.md new file mode 100644 index 000000000..b3c476b02 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isboolean/README.md @@ -0,0 +1,18 @@ +# lodash.isboolean v3.0.3 + +The [lodash](https://lodash.com/) method `_.isBoolean` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isboolean +``` + +In Node.js: +```js +var isBoolean = require('lodash.isboolean'); +``` + +See the [documentation](https://lodash.com/docs#isBoolean) or [package source](https://github.com/lodash/lodash/blob/3.0.3-npm-packages/lodash.isboolean) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isboolean/index.js b/week-3/02-course-app-easy/node_modules/lodash.isboolean/index.js new file mode 100644 index 000000000..23bbabdc3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isboolean/index.js @@ -0,0 +1,70 @@ +/** + * lodash 3.0.3 (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright 2012-2016 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ + +/** `Object#toString` result references. */ +var boolTag = '[object Boolean]'; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ +function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && objectToString.call(value) == boolTag); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +module.exports = isBoolean; diff --git a/week-3/02-course-app-easy/node_modules/lodash.isboolean/package.json b/week-3/02-course-app-easy/node_modules/lodash.isboolean/package.json new file mode 100644 index 000000000..01d6e8b91 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isboolean/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isboolean", + "version": "3.0.3", + "description": "The lodash method `_.isBoolean` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isboolean", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/lodash.isinteger/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.isinteger/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isinteger/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isinteger/README.md b/week-3/02-course-app-easy/node_modules/lodash.isinteger/README.md new file mode 100644 index 000000000..3a78567b6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isinteger/README.md @@ -0,0 +1,18 @@ +# lodash.isinteger v4.0.4 + +The [lodash](https://lodash.com/) method `_.isInteger` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isinteger +``` + +In Node.js: +```js +var isInteger = require('lodash.isinteger'); +``` + +See the [documentation](https://lodash.com/docs#isInteger) or [package source](https://github.com/lodash/lodash/blob/4.0.4-npm-packages/lodash.isinteger) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isinteger/index.js b/week-3/02-course-app-easy/node_modules/lodash.isinteger/index.js new file mode 100644 index 000000000..3bf06f007 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isinteger/index.js @@ -0,0 +1,265 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + +/** `Object#toString` result references. */ +var symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is an integer. + * + * **Note:** This method is based on + * [`Number.isInteger`](https://mdn.io/Number/isInteger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an integer, else `false`. + * @example + * + * _.isInteger(3); + * // => true + * + * _.isInteger(Number.MIN_VALUE); + * // => false + * + * _.isInteger(Infinity); + * // => false + * + * _.isInteger('3'); + * // => false + */ +function isInteger(value) { + return typeof value == 'number' && value == toInteger(value); +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ +function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; +} + +/** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ +function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +module.exports = isInteger; diff --git a/week-3/02-course-app-easy/node_modules/lodash.isinteger/package.json b/week-3/02-course-app-easy/node_modules/lodash.isinteger/package.json new file mode 100644 index 000000000..92db256f1 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isinteger/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isinteger", + "version": "4.0.4", + "description": "The lodash method `_.isInteger` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isinteger", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/lodash.isnumber/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.isnumber/LICENSE new file mode 100644 index 000000000..b054ca5a3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isnumber/LICENSE @@ -0,0 +1,22 @@ +Copyright 2012-2016 The Dojo Foundation +Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isnumber/README.md b/week-3/02-course-app-easy/node_modules/lodash.isnumber/README.md new file mode 100644 index 000000000..a1d434dd6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isnumber/README.md @@ -0,0 +1,18 @@ +# lodash.isnumber v3.0.3 + +The [lodash](https://lodash.com/) method `_.isNumber` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isnumber +``` + +In Node.js: +```js +var isNumber = require('lodash.isnumber'); +``` + +See the [documentation](https://lodash.com/docs#isNumber) or [package source](https://github.com/lodash/lodash/blob/3.0.3-npm-packages/lodash.isnumber) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isnumber/index.js b/week-3/02-course-app-easy/node_modules/lodash.isnumber/index.js new file mode 100644 index 000000000..35a85732b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isnumber/index.js @@ -0,0 +1,79 @@ +/** + * lodash 3.0.3 (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright 2012-2016 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ + +/** `Object#toString` result references. */ +var numberTag = '[object Number]'; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified + * as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ +function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && objectToString.call(value) == numberTag); +} + +module.exports = isNumber; diff --git a/week-3/02-course-app-easy/node_modules/lodash.isnumber/package.json b/week-3/02-course-app-easy/node_modules/lodash.isnumber/package.json new file mode 100644 index 000000000..4c33c2a31 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isnumber/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isnumber", + "version": "3.0.3", + "description": "The lodash method `_.isNumber` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isnumber", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/lodash.isplainobject/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isplainobject/README.md b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/README.md new file mode 100644 index 000000000..aeefd74da --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/README.md @@ -0,0 +1,18 @@ +# lodash.isplainobject v4.0.6 + +The [lodash](https://lodash.com/) method `_.isPlainObject` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isplainobject +``` + +In Node.js: +```js +var isPlainObject = require('lodash.isplainobject'); +``` + +See the [documentation](https://lodash.com/docs#isPlainObject) or [package source](https://github.com/lodash/lodash/blob/4.0.6-npm-packages/lodash.isplainobject) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isplainobject/index.js b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/index.js new file mode 100644 index 000000000..0f820ee7a --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/index.js @@ -0,0 +1,139 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** `Object#toString` result references. */ +var objectTag = '[object Object]'; + +/** + * Checks if `value` is a host object in IE < 9. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a host object, else `false`. + */ +function isHostObject(value) { + // Many host objects are `Object` objects that can coerce to strings + // despite having improperly defined `toString` methods. + var result = false; + if (value != null && typeof value.toString != 'function') { + try { + result = !!(value + ''); + } catch (e) {} + } + return result; +} + +/** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ +function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; +} + +/** Used for built-in method references. */ +var funcProto = Function.prototype, + objectProto = Object.prototype; + +/** Used to resolve the decompiled source of functions. */ +var funcToString = funcProto.toString; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** Used to infer the `Object` constructor. */ +var objectCtorString = funcToString.call(Object); + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** Built-in value references. */ +var getPrototype = overArg(Object.getPrototypeOf, Object); + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ +function isPlainObject(value) { + if (!isObjectLike(value) || + objectToString.call(value) != objectTag || isHostObject(value)) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return (typeof Ctor == 'function' && + Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString); +} + +module.exports = isPlainObject; diff --git a/week-3/02-course-app-easy/node_modules/lodash.isplainobject/package.json b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/package.json new file mode 100644 index 000000000..86f6a07e7 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isplainobject/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isplainobject", + "version": "4.0.6", + "description": "The lodash method `_.isPlainObject` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isplainobject", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/lodash.isstring/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.isstring/LICENSE new file mode 100644 index 000000000..b054ca5a3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isstring/LICENSE @@ -0,0 +1,22 @@ +Copyright 2012-2016 The Dojo Foundation +Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isstring/README.md b/week-3/02-course-app-easy/node_modules/lodash.isstring/README.md new file mode 100644 index 000000000..f184029aa --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isstring/README.md @@ -0,0 +1,18 @@ +# lodash.isstring v4.0.1 + +The [lodash](https://lodash.com/) method `_.isString` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isstring +``` + +In Node.js: +```js +var isString = require('lodash.isstring'); +``` + +See the [documentation](https://lodash.com/docs#isString) or [package source](https://github.com/lodash/lodash/blob/4.0.1-npm-packages/lodash.isstring) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.isstring/index.js b/week-3/02-course-app-easy/node_modules/lodash.isstring/index.js new file mode 100644 index 000000000..408225c52 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isstring/index.js @@ -0,0 +1,95 @@ +/** + * lodash 4.0.1 (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright 2012-2016 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ + +/** `Object#toString` result references. */ +var stringTag = '[object String]'; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @type Function + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ +var isArray = Array.isArray; + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ +function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag); +} + +module.exports = isString; diff --git a/week-3/02-course-app-easy/node_modules/lodash.isstring/package.json b/week-3/02-course-app-easy/node_modules/lodash.isstring/package.json new file mode 100644 index 000000000..1331535d6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.isstring/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isstring", + "version": "4.0.1", + "description": "The lodash method `_.isString` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isstring", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/lodash.once/LICENSE b/week-3/02-course-app-easy/node_modules/lodash.once/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.once/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/02-course-app-easy/node_modules/lodash.once/README.md b/week-3/02-course-app-easy/node_modules/lodash.once/README.md new file mode 100644 index 000000000..c4a2f1698 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.once/README.md @@ -0,0 +1,18 @@ +# lodash.once v4.1.1 + +The [lodash](https://lodash.com/) method `_.once` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.once +``` + +In Node.js: +```js +var once = require('lodash.once'); +``` + +See the [documentation](https://lodash.com/docs#once) or [package source](https://github.com/lodash/lodash/blob/4.1.1-npm-packages/lodash.once) for more details. diff --git a/week-3/02-course-app-easy/node_modules/lodash.once/index.js b/week-3/02-course-app-easy/node_modules/lodash.once/index.js new file mode 100644 index 000000000..414ceb331 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.once/index.js @@ -0,0 +1,294 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as the `TypeError` message for "Functions" methods. */ +var FUNC_ERROR_TEXT = 'Expected a function'; + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + +/** `Object#toString` result references. */ +var symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ +function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; +} + +/** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ +function once(func) { + return before(2, func); +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ +function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; +} + +/** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ +function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +module.exports = once; diff --git a/week-3/02-course-app-easy/node_modules/lodash.once/package.json b/week-3/02-course-app-easy/node_modules/lodash.once/package.json new file mode 100644 index 000000000..fae782c22 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/lodash.once/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.once", + "version": "4.1.1", + "description": "The lodash method `_.once` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, once", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/02-course-app-easy/node_modules/ms/index.js b/week-3/02-course-app-easy/node_modules/ms/index.js new file mode 100644 index 000000000..ea734fb73 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ms/index.js @@ -0,0 +1,162 @@ +/** + * Helpers. + */ + +var s = 1000; +var m = s * 60; +var h = m * 60; +var d = h * 24; +var w = d * 7; +var y = d * 365.25; + +/** + * Parse or format the given `val`. + * + * Options: + * + * - `long` verbose formatting [false] + * + * @param {String|Number} val + * @param {Object} [options] + * @throws {Error} throw an error if val is not a non-empty string or a number + * @return {String|Number} + * @api public + */ + +module.exports = function (val, options) { + options = options || {}; + var type = typeof val; + if (type === 'string' && val.length > 0) { + return parse(val); + } else if (type === 'number' && isFinite(val)) { + return options.long ? fmtLong(val) : fmtShort(val); + } + throw new Error( + 'val is not a non-empty string or a valid number. val=' + + JSON.stringify(val) + ); +}; + +/** + * Parse the given `str` and return milliseconds. + * + * @param {String} str + * @return {Number} + * @api private + */ + +function parse(str) { + str = String(str); + if (str.length > 100) { + return; + } + var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec( + str + ); + if (!match) { + return; + } + var n = parseFloat(match[1]); + var type = (match[2] || 'ms').toLowerCase(); + switch (type) { + case 'years': + case 'year': + case 'yrs': + case 'yr': + case 'y': + return n * y; + case 'weeks': + case 'week': + case 'w': + return n * w; + case 'days': + case 'day': + case 'd': + return n * d; + case 'hours': + case 'hour': + case 'hrs': + case 'hr': + case 'h': + return n * h; + case 'minutes': + case 'minute': + case 'mins': + case 'min': + case 'm': + return n * m; + case 'seconds': + case 'second': + case 'secs': + case 'sec': + case 's': + return n * s; + case 'milliseconds': + case 'millisecond': + case 'msecs': + case 'msec': + case 'ms': + return n; + default: + return undefined; + } +} + +/** + * Short format for `ms`. + * + * @param {Number} ms + * @return {String} + * @api private + */ + +function fmtShort(ms) { + var msAbs = Math.abs(ms); + if (msAbs >= d) { + return Math.round(ms / d) + 'd'; + } + if (msAbs >= h) { + return Math.round(ms / h) + 'h'; + } + if (msAbs >= m) { + return Math.round(ms / m) + 'm'; + } + if (msAbs >= s) { + return Math.round(ms / s) + 's'; + } + return ms + 'ms'; +} + +/** + * Long format for `ms`. + * + * @param {Number} ms + * @return {String} + * @api private + */ + +function fmtLong(ms) { + var msAbs = Math.abs(ms); + if (msAbs >= d) { + return plural(ms, msAbs, d, 'day'); + } + if (msAbs >= h) { + return plural(ms, msAbs, h, 'hour'); + } + if (msAbs >= m) { + return plural(ms, msAbs, m, 'minute'); + } + if (msAbs >= s) { + return plural(ms, msAbs, s, 'second'); + } + return ms + ' ms'; +} + +/** + * Pluralization helper. + */ + +function plural(ms, msAbs, n, name) { + var isPlural = msAbs >= n * 1.5; + return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : ''); +} diff --git a/week-3/02-course-app-easy/node_modules/ms/license.md b/week-3/02-course-app-easy/node_modules/ms/license.md new file mode 100644 index 000000000..fa5d39b62 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ms/license.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2020 Vercel, Inc. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/ms/package.json b/week-3/02-course-app-easy/node_modules/ms/package.json new file mode 100644 index 000000000..49971890d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ms/package.json @@ -0,0 +1,38 @@ +{ + "name": "ms", + "version": "2.1.3", + "description": "Tiny millisecond conversion utility", + "repository": "vercel/ms", + "main": "./index", + "files": [ + "index.js" + ], + "scripts": { + "precommit": "lint-staged", + "lint": "eslint lib/* bin/*", + "test": "mocha tests.js" + }, + "eslintConfig": { + "extends": "eslint:recommended", + "env": { + "node": true, + "es6": true + } + }, + "lint-staged": { + "*.js": [ + "npm run lint", + "prettier --single-quote --write", + "git add" + ] + }, + "license": "MIT", + "devDependencies": { + "eslint": "4.18.2", + "expect.js": "0.3.1", + "husky": "0.14.3", + "lint-staged": "5.0.0", + "mocha": "4.0.1", + "prettier": "2.0.5" + } +} diff --git a/week-3/02-course-app-easy/node_modules/ms/readme.md b/week-3/02-course-app-easy/node_modules/ms/readme.md new file mode 100644 index 000000000..0fc1abb3b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/ms/readme.md @@ -0,0 +1,59 @@ +# ms + +![CI](https://github.com/vercel/ms/workflows/CI/badge.svg) + +Use this package to easily convert various time formats to milliseconds. + +## Examples + +```js +ms('2 days') // 172800000 +ms('1d') // 86400000 +ms('10h') // 36000000 +ms('2.5 hrs') // 9000000 +ms('2h') // 7200000 +ms('1m') // 60000 +ms('5s') // 5000 +ms('1y') // 31557600000 +ms('100') // 100 +ms('-3 days') // -259200000 +ms('-1h') // -3600000 +ms('-200') // -200 +``` + +### Convert from Milliseconds + +```js +ms(60000) // "1m" +ms(2 * 60000) // "2m" +ms(-3 * 60000) // "-3m" +ms(ms('10 hours')) // "10h" +``` + +### Time Format Written-Out + +```js +ms(60000, { long: true }) // "1 minute" +ms(2 * 60000, { long: true }) // "2 minutes" +ms(-3 * 60000, { long: true }) // "-3 minutes" +ms(ms('10 hours'), { long: true }) // "10 hours" +``` + +## Features + +- Works both in [Node.js](https://nodejs.org) and in the browser +- If a number is supplied to `ms`, a string with a unit is returned +- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`) +- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned + +## Related Packages + +- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time. + +## Caught a Bug? + +1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device +2. Link the package to the global module directory: `npm link` +3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms! + +As always, you can run the tests using: `npm test` diff --git a/week-3/02-course-app-easy/node_modules/safe-buffer/LICENSE b/week-3/02-course-app-easy/node_modules/safe-buffer/LICENSE new file mode 100644 index 000000000..0c068ceec --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/safe-buffer/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) Feross Aboukhadijeh + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/safe-buffer/README.md b/week-3/02-course-app-easy/node_modules/safe-buffer/README.md new file mode 100644 index 000000000..e9a81afd0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/safe-buffer/README.md @@ -0,0 +1,584 @@ +# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url] + +[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg +[travis-url]: https://travis-ci.org/feross/safe-buffer +[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg +[npm-url]: https://npmjs.org/package/safe-buffer +[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg +[downloads-url]: https://npmjs.org/package/safe-buffer +[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg +[standard-url]: https://standardjs.com + +#### Safer Node.js Buffer API + +**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`, +`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.** + +**Uses the built-in implementation when available.** + +## install + +``` +npm install safe-buffer +``` + +## usage + +The goal of this package is to provide a safe replacement for the node.js `Buffer`. + +It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to +the top of your node.js modules: + +```js +var Buffer = require('safe-buffer').Buffer + +// Existing buffer code will continue to work without issues: + +new Buffer('hey', 'utf8') +new Buffer([1, 2, 3], 'utf8') +new Buffer(obj) +new Buffer(16) // create an uninitialized buffer (potentially unsafe) + +// But you can use these new explicit APIs to make clear what you want: + +Buffer.from('hey', 'utf8') // convert from many types to a Buffer +Buffer.alloc(16) // create a zero-filled buffer (safe) +Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe) +``` + +## api + +### Class Method: Buffer.from(array) + + +* `array` {Array} + +Allocates a new `Buffer` using an `array` of octets. + +```js +const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]); + // creates a new Buffer containing ASCII bytes + // ['b','u','f','f','e','r'] +``` + +A `TypeError` will be thrown if `array` is not an `Array`. + +### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]]) + + +* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or + a `new ArrayBuffer()` +* `byteOffset` {Number} Default: `0` +* `length` {Number} Default: `arrayBuffer.length - byteOffset` + +When passed a reference to the `.buffer` property of a `TypedArray` instance, +the newly created `Buffer` will share the same allocated memory as the +TypedArray. + +```js +const arr = new Uint16Array(2); +arr[0] = 5000; +arr[1] = 4000; + +const buf = Buffer.from(arr.buffer); // shares the memory with arr; + +console.log(buf); + // Prints: + +// changing the TypedArray changes the Buffer also +arr[1] = 6000; + +console.log(buf); + // Prints: +``` + +The optional `byteOffset` and `length` arguments specify a memory range within +the `arrayBuffer` that will be shared by the `Buffer`. + +```js +const ab = new ArrayBuffer(10); +const buf = Buffer.from(ab, 0, 2); +console.log(buf.length); + // Prints: 2 +``` + +A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`. + +### Class Method: Buffer.from(buffer) + + +* `buffer` {Buffer} + +Copies the passed `buffer` data onto a new `Buffer` instance. + +```js +const buf1 = Buffer.from('buffer'); +const buf2 = Buffer.from(buf1); + +buf1[0] = 0x61; +console.log(buf1.toString()); + // 'auffer' +console.log(buf2.toString()); + // 'buffer' (copy is not changed) +``` + +A `TypeError` will be thrown if `buffer` is not a `Buffer`. + +### Class Method: Buffer.from(str[, encoding]) + + +* `str` {String} String to encode. +* `encoding` {String} Encoding to use, Default: `'utf8'` + +Creates a new `Buffer` containing the given JavaScript string `str`. If +provided, the `encoding` parameter identifies the character encoding. +If not provided, `encoding` defaults to `'utf8'`. + +```js +const buf1 = Buffer.from('this is a tést'); +console.log(buf1.toString()); + // prints: this is a tést +console.log(buf1.toString('ascii')); + // prints: this is a tC)st + +const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex'); +console.log(buf2.toString()); + // prints: this is a tést +``` + +A `TypeError` will be thrown if `str` is not a string. + +### Class Method: Buffer.alloc(size[, fill[, encoding]]) + + +* `size` {Number} +* `fill` {Value} Default: `undefined` +* `encoding` {String} Default: `utf8` + +Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the +`Buffer` will be *zero-filled*. + +```js +const buf = Buffer.alloc(5); +console.log(buf); + // +``` + +The `size` must be less than or equal to the value of +`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is +`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will +be created if a `size` less than or equal to 0 is specified. + +If `fill` is specified, the allocated `Buffer` will be initialized by calling +`buf.fill(fill)`. See [`buf.fill()`][] for more information. + +```js +const buf = Buffer.alloc(5, 'a'); +console.log(buf); + // +``` + +If both `fill` and `encoding` are specified, the allocated `Buffer` will be +initialized by calling `buf.fill(fill, encoding)`. For example: + +```js +const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64'); +console.log(buf); + // +``` + +Calling `Buffer.alloc(size)` can be significantly slower than the alternative +`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance +contents will *never contain sensitive data*. + +A `TypeError` will be thrown if `size` is not a number. + +### Class Method: Buffer.allocUnsafe(size) + + +* `size` {Number} + +Allocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must +be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit +architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is +thrown. A zero-length Buffer will be created if a `size` less than or equal to +0 is specified. + +The underlying memory for `Buffer` instances created in this way is *not +initialized*. The contents of the newly created `Buffer` are unknown and +*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such +`Buffer` instances to zeroes. + +```js +const buf = Buffer.allocUnsafe(5); +console.log(buf); + // + // (octets will be different, every time) +buf.fill(0); +console.log(buf); + // +``` + +A `TypeError` will be thrown if `size` is not a number. + +Note that the `Buffer` module pre-allocates an internal `Buffer` instance of +size `Buffer.poolSize` that is used as a pool for the fast allocation of new +`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated +`new Buffer(size)` constructor) only when `size` is less than or equal to +`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default +value of `Buffer.poolSize` is `8192` but can be modified. + +Use of this pre-allocated internal memory pool is a key difference between +calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`. +Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer +pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal +Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The +difference is subtle but can be important when an application requires the +additional performance that `Buffer.allocUnsafe(size)` provides. + +### Class Method: Buffer.allocUnsafeSlow(size) + + +* `size` {Number} + +Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The +`size` must be less than or equal to the value of +`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is +`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will +be created if a `size` less than or equal to 0 is specified. + +The underlying memory for `Buffer` instances created in this way is *not +initialized*. The contents of the newly created `Buffer` are unknown and +*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such +`Buffer` instances to zeroes. + +When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances, +allocations under 4KB are, by default, sliced from a single pre-allocated +`Buffer`. This allows applications to avoid the garbage collection overhead of +creating many individually allocated Buffers. This approach improves both +performance and memory usage by eliminating the need to track and cleanup as +many `Persistent` objects. + +However, in the case where a developer may need to retain a small chunk of +memory from a pool for an indeterminate amount of time, it may be appropriate +to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then +copy out the relevant bits. + +```js +// need to keep around a few small chunks of memory +const store = []; + +socket.on('readable', () => { + const data = socket.read(); + // allocate for retained data + const sb = Buffer.allocUnsafeSlow(10); + // copy the data into the new allocation + data.copy(sb, 0, 0, 10); + store.push(sb); +}); +``` + +Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after* +a developer has observed undue memory retention in their applications. + +A `TypeError` will be thrown if `size` is not a number. + +### All the Rest + +The rest of the `Buffer` API is exactly the same as in node.js. +[See the docs](https://nodejs.org/api/buffer.html). + + +## Related links + +- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660) +- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4) + +## Why is `Buffer` unsafe? + +Today, the node.js `Buffer` constructor is overloaded to handle many different argument +types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.), +`ArrayBuffer`, and also `Number`. + +The API is optimized for convenience: you can throw any type at it, and it will try to do +what you want. + +Because the Buffer constructor is so powerful, you often see code like this: + +```js +// Convert UTF-8 strings to hex +function toHex (str) { + return new Buffer(str).toString('hex') +} +``` + +***But what happens if `toHex` is called with a `Number` argument?*** + +### Remote Memory Disclosure + +If an attacker can make your program call the `Buffer` constructor with a `Number` +argument, then they can make it allocate uninitialized memory from the node.js process. +This could potentially disclose TLS private keys, user data, or database passwords. + +When the `Buffer` constructor is passed a `Number` argument, it returns an +**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like +this, you **MUST** overwrite the contents before returning it to the user. + +From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size): + +> `new Buffer(size)` +> +> - `size` Number +> +> The underlying memory for `Buffer` instances created in this way is not initialized. +> **The contents of a newly created `Buffer` are unknown and could contain sensitive +> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes. + +(Emphasis our own.) + +Whenever the programmer intended to create an uninitialized `Buffer` you often see code +like this: + +```js +var buf = new Buffer(16) + +// Immediately overwrite the uninitialized buffer with data from another buffer +for (var i = 0; i < buf.length; i++) { + buf[i] = otherBuf[i] +} +``` + + +### Would this ever be a problem in real code? + +Yes. It's surprisingly common to forget to check the type of your variables in a +dynamically-typed language like JavaScript. + +Usually the consequences of assuming the wrong type is that your program crashes with an +uncaught exception. But the failure mode for forgetting to check the type of arguments to +the `Buffer` constructor is more catastrophic. + +Here's an example of a vulnerable service that takes a JSON payload and converts it to +hex: + +```js +// Take a JSON payload {str: "some string"} and convert it to hex +var server = http.createServer(function (req, res) { + var data = '' + req.setEncoding('utf8') + req.on('data', function (chunk) { + data += chunk + }) + req.on('end', function () { + var body = JSON.parse(data) + res.end(new Buffer(body.str).toString('hex')) + }) +}) + +server.listen(8080) +``` + +In this example, an http client just has to send: + +```json +{ + "str": 1000 +} +``` + +and it will get back 1,000 bytes of uninitialized memory from the server. + +This is a very serious bug. It's similar in severity to the +[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process +memory by remote attackers. + + +### Which real-world packages were vulnerable? + +#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht) + +[Mathias Buus](https://github.com/mafintosh) and I +([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages, +[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow +anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get +them to reveal 20 bytes at a time of uninitialized memory from the node.js process. + +Here's +[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8) +that fixed it. We released a new fixed version, created a +[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all +vulnerable versions on npm so users will get a warning to upgrade to a newer version. + +#### [`ws`](https://www.npmjs.com/package/ws) + +That got us wondering if there were other vulnerable packages. Sure enough, within a short +period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the +most popular WebSocket implementation in node.js. + +If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as +expected, then uninitialized server memory would be disclosed to the remote peer. + +These were the vulnerable methods: + +```js +socket.send(number) +socket.ping(number) +socket.pong(number) +``` + +Here's a vulnerable socket server with some echo functionality: + +```js +server.on('connection', function (socket) { + socket.on('message', function (message) { + message = JSON.parse(message) + if (message.type === 'echo') { + socket.send(message.data) // send back the user's message + } + }) +}) +``` + +`socket.send(number)` called on the server, will disclose server memory. + +Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue +was fixed, with a more detailed explanation. Props to +[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the +[Node Security Project disclosure](https://nodesecurity.io/advisories/67). + + +### What's the solution? + +It's important that node.js offers a fast way to get memory otherwise performance-critical +applications would needlessly get a lot slower. + +But we need a better way to *signal our intent* as programmers. **When we want +uninitialized memory, we should request it explicitly.** + +Sensitive functionality should not be packed into a developer-friendly API that loosely +accepts many different types. This type of API encourages the lazy practice of passing +variables in without checking the type very carefully. + +#### A new API: `Buffer.allocUnsafe(number)` + +The functionality of creating buffers with uninitialized memory should be part of another +API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that +frequently gets user input of all sorts of different types passed into it. + +```js +var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory! + +// Immediately overwrite the uninitialized buffer with data from another buffer +for (var i = 0; i < buf.length; i++) { + buf[i] = otherBuf[i] +} +``` + + +### How do we fix node.js core? + +We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as +`semver-major`) which defends against one case: + +```js +var str = 16 +new Buffer(str, 'utf8') +``` + +In this situation, it's implied that the programmer intended the first argument to be a +string, since they passed an encoding as a second argument. Today, node.js will allocate +uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not +what the programmer intended. + +But this is only a partial solution, since if the programmer does `new Buffer(variable)` +(without an `encoding` parameter) there's no way to know what they intended. If `variable` +is sometimes a number, then uninitialized memory will sometimes be returned. + +### What's the real long-term fix? + +We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when +we need uninitialized memory. But that would break 1000s of packages. + +~~We believe the best solution is to:~~ + +~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~ + +~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~ + +#### Update + +We now support adding three new APIs: + +- `Buffer.from(value)` - convert from any type to a buffer +- `Buffer.alloc(size)` - create a zero-filled buffer +- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size + +This solves the core problem that affected `ws` and `bittorrent-dht` which is +`Buffer(variable)` getting tricked into taking a number argument. + +This way, existing code continues working and the impact on the npm ecosystem will be +minimal. Over time, npm maintainers can migrate performance-critical code to use +`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`. + + +### Conclusion + +We think there's a serious design issue with the `Buffer` API as it exists today. It +promotes insecure software by putting high-risk functionality into a convenient API +with friendly "developer ergonomics". + +This wasn't merely a theoretical exercise because we found the issue in some of the +most popular npm packages. + +Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of +`buffer`. + +```js +var Buffer = require('safe-buffer').Buffer +``` + +Eventually, we hope that node.js core can switch to this new, safer behavior. We believe +the impact on the ecosystem would be minimal since it's not a breaking change. +Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while +older, insecure packages would magically become safe from this attack vector. + + +## links + +- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514) +- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67) +- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68) + + +## credit + +The original issues in `bittorrent-dht` +([disclosure](https://nodesecurity.io/advisories/68)) and +`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by +[Mathias Buus](https://github.com/mafintosh) and +[Feross Aboukhadijeh](http://feross.org/). + +Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues +and for his work running the [Node Security Project](https://nodesecurity.io/). + +Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and +auditing the code. + + +## license + +MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org) diff --git a/week-3/02-course-app-easy/node_modules/safe-buffer/index.d.ts b/week-3/02-course-app-easy/node_modules/safe-buffer/index.d.ts new file mode 100644 index 000000000..e9fed809a --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/safe-buffer/index.d.ts @@ -0,0 +1,187 @@ +declare module "safe-buffer" { + export class Buffer { + length: number + write(string: string, offset?: number, length?: number, encoding?: string): number; + toString(encoding?: string, start?: number, end?: number): string; + toJSON(): { type: 'Buffer', data: any[] }; + equals(otherBuffer: Buffer): boolean; + compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number; + copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number; + slice(start?: number, end?: number): Buffer; + writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number; + readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number; + readIntLE(offset: number, byteLength: number, noAssert?: boolean): number; + readIntBE(offset: number, byteLength: number, noAssert?: boolean): number; + readUInt8(offset: number, noAssert?: boolean): number; + readUInt16LE(offset: number, noAssert?: boolean): number; + readUInt16BE(offset: number, noAssert?: boolean): number; + readUInt32LE(offset: number, noAssert?: boolean): number; + readUInt32BE(offset: number, noAssert?: boolean): number; + readInt8(offset: number, noAssert?: boolean): number; + readInt16LE(offset: number, noAssert?: boolean): number; + readInt16BE(offset: number, noAssert?: boolean): number; + readInt32LE(offset: number, noAssert?: boolean): number; + readInt32BE(offset: number, noAssert?: boolean): number; + readFloatLE(offset: number, noAssert?: boolean): number; + readFloatBE(offset: number, noAssert?: boolean): number; + readDoubleLE(offset: number, noAssert?: boolean): number; + readDoubleBE(offset: number, noAssert?: boolean): number; + swap16(): Buffer; + swap32(): Buffer; + swap64(): Buffer; + writeUInt8(value: number, offset: number, noAssert?: boolean): number; + writeUInt16LE(value: number, offset: number, noAssert?: boolean): number; + writeUInt16BE(value: number, offset: number, noAssert?: boolean): number; + writeUInt32LE(value: number, offset: number, noAssert?: boolean): number; + writeUInt32BE(value: number, offset: number, noAssert?: boolean): number; + writeInt8(value: number, offset: number, noAssert?: boolean): number; + writeInt16LE(value: number, offset: number, noAssert?: boolean): number; + writeInt16BE(value: number, offset: number, noAssert?: boolean): number; + writeInt32LE(value: number, offset: number, noAssert?: boolean): number; + writeInt32BE(value: number, offset: number, noAssert?: boolean): number; + writeFloatLE(value: number, offset: number, noAssert?: boolean): number; + writeFloatBE(value: number, offset: number, noAssert?: boolean): number; + writeDoubleLE(value: number, offset: number, noAssert?: boolean): number; + writeDoubleBE(value: number, offset: number, noAssert?: boolean): number; + fill(value: any, offset?: number, end?: number): this; + indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number; + lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number; + includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean; + + /** + * Allocates a new buffer containing the given {str}. + * + * @param str String to store in buffer. + * @param encoding encoding to use, optional. Default is 'utf8' + */ + constructor (str: string, encoding?: string); + /** + * Allocates a new buffer of {size} octets. + * + * @param size count of octets to allocate. + */ + constructor (size: number); + /** + * Allocates a new buffer containing the given {array} of octets. + * + * @param array The octets to store. + */ + constructor (array: Uint8Array); + /** + * Produces a Buffer backed by the same allocated memory as + * the given {ArrayBuffer}. + * + * + * @param arrayBuffer The ArrayBuffer with which to share memory. + */ + constructor (arrayBuffer: ArrayBuffer); + /** + * Allocates a new buffer containing the given {array} of octets. + * + * @param array The octets to store. + */ + constructor (array: any[]); + /** + * Copies the passed {buffer} data onto a new {Buffer} instance. + * + * @param buffer The buffer to copy. + */ + constructor (buffer: Buffer); + prototype: Buffer; + /** + * Allocates a new Buffer using an {array} of octets. + * + * @param array + */ + static from(array: any[]): Buffer; + /** + * When passed a reference to the .buffer property of a TypedArray instance, + * the newly created Buffer will share the same allocated memory as the TypedArray. + * The optional {byteOffset} and {length} arguments specify a memory range + * within the {arrayBuffer} that will be shared by the Buffer. + * + * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer() + * @param byteOffset + * @param length + */ + static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer; + /** + * Copies the passed {buffer} data onto a new Buffer instance. + * + * @param buffer + */ + static from(buffer: Buffer): Buffer; + /** + * Creates a new Buffer containing the given JavaScript string {str}. + * If provided, the {encoding} parameter identifies the character encoding. + * If not provided, {encoding} defaults to 'utf8'. + * + * @param str + */ + static from(str: string, encoding?: string): Buffer; + /** + * Returns true if {obj} is a Buffer + * + * @param obj object to test. + */ + static isBuffer(obj: any): obj is Buffer; + /** + * Returns true if {encoding} is a valid encoding argument. + * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex' + * + * @param encoding string to test. + */ + static isEncoding(encoding: string): boolean; + /** + * Gives the actual byte length of a string. encoding defaults to 'utf8'. + * This is not the same as String.prototype.length since that returns the number of characters in a string. + * + * @param string string to test. + * @param encoding encoding used to evaluate (defaults to 'utf8') + */ + static byteLength(string: string, encoding?: string): number; + /** + * Returns a buffer which is the result of concatenating all the buffers in the list together. + * + * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer. + * If the list has exactly one item, then the first item of the list is returned. + * If the list has more than one item, then a new Buffer is created. + * + * @param list An array of Buffer objects to concatenate + * @param totalLength Total length of the buffers when concatenated. + * If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly. + */ + static concat(list: Buffer[], totalLength?: number): Buffer; + /** + * The same as buf1.compare(buf2). + */ + static compare(buf1: Buffer, buf2: Buffer): number; + /** + * Allocates a new buffer of {size} octets. + * + * @param size count of octets to allocate. + * @param fill if specified, buffer will be initialized by calling buf.fill(fill). + * If parameter is omitted, buffer will be filled with zeros. + * @param encoding encoding used for call to buf.fill while initalizing + */ + static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer; + /** + * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents + * of the newly created Buffer are unknown and may contain sensitive data. + * + * @param size count of octets to allocate + */ + static allocUnsafe(size: number): Buffer; + /** + * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents + * of the newly created Buffer are unknown and may contain sensitive data. + * + * @param size count of octets to allocate + */ + static allocUnsafeSlow(size: number): Buffer; + } +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/safe-buffer/index.js b/week-3/02-course-app-easy/node_modules/safe-buffer/index.js new file mode 100644 index 000000000..f8d3ec988 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/safe-buffer/index.js @@ -0,0 +1,65 @@ +/*! safe-buffer. MIT License. Feross Aboukhadijeh */ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +// alternative to using Object.keys for old browsers +function copyProps (src, dst) { + for (var key in src) { + dst[key] = src[key] + } +} +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + copyProps(buffer, exports) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.prototype = Object.create(Buffer.prototype) + +// Copy static methods from Buffer +copyProps(Buffer, SafeBuffer) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} diff --git a/week-3/02-course-app-easy/node_modules/safe-buffer/package.json b/week-3/02-course-app-easy/node_modules/safe-buffer/package.json new file mode 100644 index 000000000..f2869e256 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/safe-buffer/package.json @@ -0,0 +1,51 @@ +{ + "name": "safe-buffer", + "description": "Safer Node.js Buffer API", + "version": "5.2.1", + "author": { + "name": "Feross Aboukhadijeh", + "email": "feross@feross.org", + "url": "https://feross.org" + }, + "bugs": { + "url": "https://github.com/feross/safe-buffer/issues" + }, + "devDependencies": { + "standard": "*", + "tape": "^5.0.0" + }, + "homepage": "https://github.com/feross/safe-buffer", + "keywords": [ + "buffer", + "buffer allocate", + "node security", + "safe", + "safe-buffer", + "security", + "uninitialized" + ], + "license": "MIT", + "main": "index.js", + "types": "index.d.ts", + "repository": { + "type": "git", + "url": "git://github.com/feross/safe-buffer.git" + }, + "scripts": { + "test": "standard && tape test/*.js" + }, + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ] +} diff --git a/week-3/02-course-app-easy/node_modules/semver/LICENSE b/week-3/02-course-app-easy/node_modules/semver/LICENSE new file mode 100644 index 000000000..19129e315 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/LICENSE @@ -0,0 +1,15 @@ +The ISC License + +Copyright (c) Isaac Z. Schlueter and Contributors + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted, provided that the above +copyright notice and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR +IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/semver/README.md b/week-3/02-course-app-easy/node_modules/semver/README.md new file mode 100644 index 000000000..673e9c35c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/README.md @@ -0,0 +1,654 @@ +semver(1) -- The semantic versioner for npm +=========================================== + +## Install + +```bash +npm install semver +```` + +## Usage + +As a node module: + +```js +const semver = require('semver') + +semver.valid('1.2.3') // '1.2.3' +semver.valid('a.b.c') // null +semver.clean(' =v1.2.3 ') // '1.2.3' +semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true +semver.gt('1.2.3', '9.8.7') // false +semver.lt('1.2.3', '9.8.7') // true +semver.minVersion('>=1.0.0') // '1.0.0' +semver.valid(semver.coerce('v2')) // '2.0.0' +semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7' +``` + +You can also just load the module for the function that you care about if +you'd like to minimize your footprint. + +```js +// load the whole API at once in a single object +const semver = require('semver') + +// or just load the bits you need +// all of them listed here, just pick and choose what you want + +// classes +const SemVer = require('semver/classes/semver') +const Comparator = require('semver/classes/comparator') +const Range = require('semver/classes/range') + +// functions for working with versions +const semverParse = require('semver/functions/parse') +const semverValid = require('semver/functions/valid') +const semverClean = require('semver/functions/clean') +const semverInc = require('semver/functions/inc') +const semverDiff = require('semver/functions/diff') +const semverMajor = require('semver/functions/major') +const semverMinor = require('semver/functions/minor') +const semverPatch = require('semver/functions/patch') +const semverPrerelease = require('semver/functions/prerelease') +const semverCompare = require('semver/functions/compare') +const semverRcompare = require('semver/functions/rcompare') +const semverCompareLoose = require('semver/functions/compare-loose') +const semverCompareBuild = require('semver/functions/compare-build') +const semverSort = require('semver/functions/sort') +const semverRsort = require('semver/functions/rsort') + +// low-level comparators between versions +const semverGt = require('semver/functions/gt') +const semverLt = require('semver/functions/lt') +const semverEq = require('semver/functions/eq') +const semverNeq = require('semver/functions/neq') +const semverGte = require('semver/functions/gte') +const semverLte = require('semver/functions/lte') +const semverCmp = require('semver/functions/cmp') +const semverCoerce = require('semver/functions/coerce') + +// working with ranges +const semverSatisfies = require('semver/functions/satisfies') +const semverMaxSatisfying = require('semver/ranges/max-satisfying') +const semverMinSatisfying = require('semver/ranges/min-satisfying') +const semverToComparators = require('semver/ranges/to-comparators') +const semverMinVersion = require('semver/ranges/min-version') +const semverValidRange = require('semver/ranges/valid') +const semverOutside = require('semver/ranges/outside') +const semverGtr = require('semver/ranges/gtr') +const semverLtr = require('semver/ranges/ltr') +const semverIntersects = require('semver/ranges/intersects') +const semverSimplifyRange = require('semver/ranges/simplify') +const semverRangeSubset = require('semver/ranges/subset') +``` + +As a command-line utility: + +``` +$ semver -h + +A JavaScript implementation of the https://semver.org/ specification +Copyright Isaac Z. Schlueter + +Usage: semver [options] [ [...]] +Prints valid versions sorted by SemVer precedence + +Options: +-r --range + Print versions that match the specified range. + +-i --increment [] + Increment a version by the specified level. Level can + be one of: major, minor, patch, premajor, preminor, + prepatch, or prerelease. Default level is 'patch'. + Only one version may be specified. + +--preid + Identifier to be used to prefix premajor, preminor, + prepatch or prerelease version increments. + +-l --loose + Interpret versions and ranges loosely + +-n <0|1> + This is the base to be used for the prerelease identifier. + +-p --include-prerelease + Always include prerelease versions in range matching + +-c --coerce + Coerce a string into SemVer if possible + (does not imply --loose) + +--rtl + Coerce version strings right to left + +--ltr + Coerce version strings left to right (default) + +Program exits successfully if any valid version satisfies +all supplied ranges, and prints all satisfying versions. + +If no satisfying versions are found, then exits failure. + +Versions are printed in ascending order, so supplying +multiple versions to the utility will just sort them. +``` + +## Versions + +A "version" is described by the `v2.0.0` specification found at +. + +A leading `"="` or `"v"` character is stripped off and ignored. + +## Ranges + +A `version range` is a set of `comparators` that specify versions +that satisfy the range. + +A `comparator` is composed of an `operator` and a `version`. The set +of primitive `operators` is: + +* `<` Less than +* `<=` Less than or equal to +* `>` Greater than +* `>=` Greater than or equal to +* `=` Equal. If no operator is specified, then equality is assumed, + so this operator is optional but MAY be included. + +For example, the comparator `>=1.2.7` would match the versions +`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6` +or `1.1.0`. The comparator `>1` is equivalent to `>=2.0.0` and +would match the versions `2.0.0` and `3.1.0`, but not the versions +`1.0.1` or `1.1.0`. + +Comparators can be joined by whitespace to form a `comparator set`, +which is satisfied by the **intersection** of all of the comparators +it includes. + +A range is composed of one or more comparator sets, joined by `||`. A +version matches a range if and only if every comparator in at least +one of the `||`-separated comparator sets is satisfied by the version. + +For example, the range `>=1.2.7 <1.3.0` would match the versions +`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`, +or `1.1.0`. + +The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`, +`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`. + +### Prerelease Tags + +If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then +it will only be allowed to satisfy comparator sets if at least one +comparator with the same `[major, minor, patch]` tuple also has a +prerelease tag. + +For example, the range `>1.2.3-alpha.3` would be allowed to match the +version `1.2.3-alpha.7`, but it would *not* be satisfied by +`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater +than" `1.2.3-alpha.3` according to the SemVer sort rules. The version +range only accepts prerelease tags on the `1.2.3` version. +Version `3.4.5` *would* satisfy the range because it does not have a +prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`. + +The purpose of this behavior is twofold. First, prerelease versions +frequently are updated very quickly, and contain many breaking changes +that are (by the author's design) not yet fit for public consumption. +Therefore, by default, they are excluded from range-matching +semantics. + +Second, a user who has opted into using a prerelease version has +indicated the intent to use *that specific* set of +alpha/beta/rc versions. By including a prerelease tag in the range, +the user is indicating that they are aware of the risk. However, it +is still not appropriate to assume that they have opted into taking a +similar risk on the *next* set of prerelease versions. + +Note that this behavior can be suppressed (treating all prerelease +versions as if they were normal versions, for range-matching) +by setting the `includePrerelease` flag on the options +object to any +[functions](https://github.com/npm/node-semver#functions) that do +range matching. + +#### Prerelease Identifiers + +The method `.inc` takes an additional `identifier` string argument that +will append the value of the string as a prerelease identifier: + +```javascript +semver.inc('1.2.3', 'prerelease', 'beta') +// '1.2.4-beta.0' +``` + +command-line example: + +```bash +$ semver 1.2.3 -i prerelease --preid beta +1.2.4-beta.0 +``` + +Which then can be used to increment further: + +```bash +$ semver 1.2.4-beta.0 -i prerelease +1.2.4-beta.1 +``` + +#### Prerelease Identifier Base + +The method `.inc` takes an optional parameter 'identifierBase' string +that will let you let your prerelease number as zero-based or one-based. +Set to `false` to omit the prerelease number altogether. +If you do not specify this parameter, it will default to zero-based. + +```javascript +semver.inc('1.2.3', 'prerelease', 'beta', '1') +// '1.2.4-beta.1' +``` + +```javascript +semver.inc('1.2.3', 'prerelease', 'beta', false) +// '1.2.4-beta' +``` + +command-line example: + +```bash +$ semver 1.2.3 -i prerelease --preid beta -n 1 +1.2.4-beta.1 +``` + +```bash +$ semver 1.2.3 -i prerelease --preid beta -n false +1.2.4-beta +``` + +### Advanced Range Syntax + +Advanced range syntax desugars to primitive comparators in +deterministic ways. + +Advanced ranges may be combined in the same way as primitive +comparators using white space or `||`. + +#### Hyphen Ranges `X.Y.Z - A.B.C` + +Specifies an inclusive set. + +* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4` + +If a partial version is provided as the first version in the inclusive +range, then the missing pieces are replaced with zeroes. + +* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4` + +If a partial version is provided as the second version in the +inclusive range, then all versions that start with the supplied parts +of the tuple are accepted, but nothing that would be greater than the +provided tuple parts. + +* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0-0` +* `1.2.3 - 2` := `>=1.2.3 <3.0.0-0` + +#### X-Ranges `1.2.x` `1.X` `1.2.*` `*` + +Any of `X`, `x`, or `*` may be used to "stand in" for one of the +numeric values in the `[major, minor, patch]` tuple. + +* `*` := `>=0.0.0` (Any non-prerelease version satisfies, unless + `includePrerelease` is specified, in which case any version at all + satisfies) +* `1.x` := `>=1.0.0 <2.0.0-0` (Matching major version) +* `1.2.x` := `>=1.2.0 <1.3.0-0` (Matching major and minor versions) + +A partial version range is treated as an X-Range, so the special +character is in fact optional. + +* `""` (empty string) := `*` := `>=0.0.0` +* `1` := `1.x.x` := `>=1.0.0 <2.0.0-0` +* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0-0` + +#### Tilde Ranges `~1.2.3` `~1.2` `~1` + +Allows patch-level changes if a minor version is specified on the +comparator. Allows minor-level changes if not. + +* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0-0` +* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0-0` (Same as `1.2.x`) +* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0-0` (Same as `1.x`) +* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0-0` +* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0-0` (Same as `0.2.x`) +* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0-0` (Same as `0.x`) +* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0-0` Note that prereleases in + the `1.2.3` version will be allowed, if they are greater than or + equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but + `1.2.4-beta.2` would not, because it is a prerelease of a + different `[major, minor, patch]` tuple. + +#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4` + +Allows changes that do not modify the left-most non-zero element in the +`[major, minor, patch]` tuple. In other words, this allows patch and +minor updates for versions `1.0.0` and above, patch updates for +versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`. + +Many authors treat a `0.x` version as if the `x` were the major +"breaking-change" indicator. + +Caret ranges are ideal when an author may make breaking changes +between `0.2.4` and `0.3.0` releases, which is a common practice. +However, it presumes that there will *not* be breaking changes between +`0.2.4` and `0.2.5`. It allows for changes that are presumed to be +additive (but non-breaking), according to commonly observed practices. + +* `^1.2.3` := `>=1.2.3 <2.0.0-0` +* `^0.2.3` := `>=0.2.3 <0.3.0-0` +* `^0.0.3` := `>=0.0.3 <0.0.4-0` +* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0-0` Note that prereleases in + the `1.2.3` version will be allowed, if they are greater than or + equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but + `1.2.4-beta.2` would not, because it is a prerelease of a + different `[major, minor, patch]` tuple. +* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4-0` Note that prereleases in the + `0.0.3` version *only* will be allowed, if they are greater than or + equal to `beta`. So, `0.0.3-pr.2` would be allowed. + +When parsing caret ranges, a missing `patch` value desugars to the +number `0`, but will allow flexibility within that value, even if the +major and minor versions are both `0`. + +* `^1.2.x` := `>=1.2.0 <2.0.0-0` +* `^0.0.x` := `>=0.0.0 <0.1.0-0` +* `^0.0` := `>=0.0.0 <0.1.0-0` + +A missing `minor` and `patch` values will desugar to zero, but also +allow flexibility within those values, even if the major version is +zero. + +* `^1.x` := `>=1.0.0 <2.0.0-0` +* `^0.x` := `>=0.0.0 <1.0.0-0` + +### Range Grammar + +Putting all this together, here is a Backus-Naur grammar for ranges, +for the benefit of parser authors: + +```bnf +range-set ::= range ( logical-or range ) * +logical-or ::= ( ' ' ) * '||' ( ' ' ) * +range ::= hyphen | simple ( ' ' simple ) * | '' +hyphen ::= partial ' - ' partial +simple ::= primitive | partial | tilde | caret +primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial +partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )? +xr ::= 'x' | 'X' | '*' | nr +nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) * +tilde ::= '~' partial +caret ::= '^' partial +qualifier ::= ( '-' pre )? ( '+' build )? +pre ::= parts +build ::= parts +parts ::= part ( '.' part ) * +part ::= nr | [-0-9A-Za-z]+ +``` + +## Functions + +All methods and classes take a final `options` object argument. All +options in this object are `false` by default. The options supported +are: + +- `loose`: Be more forgiving about not-quite-valid semver strings. + (Any resulting output will always be 100% strict compliant, of + course.) For backwards compatibility reasons, if the `options` + argument is a boolean value instead of an object, it is interpreted + to be the `loose` param. +- `includePrerelease`: Set to suppress the [default + behavior](https://github.com/npm/node-semver#prerelease-tags) of + excluding prerelease tagged versions from ranges unless they are + explicitly opted into. + +Strict-mode Comparators and Ranges will be strict about the SemVer +strings that they parse. + +* `valid(v)`: Return the parsed version, or null if it's not valid. +* `inc(v, release, options, identifier, identifierBase)`: + Return the version incremented by the release + type (`major`, `premajor`, `minor`, `preminor`, `patch`, + `prepatch`, or `prerelease`), or null if it's not valid + * `premajor` in one call will bump the version up to the next major + version and down to a prerelease of that major version. + `preminor`, and `prepatch` work the same way. + * If called from a non-prerelease version, `prerelease` will work the + same as `prepatch`. It increments the patch version and then makes a + prerelease. If the input version is already a prerelease it simply + increments it. + * `identifier` can be used to prefix `premajor`, `preminor`, + `prepatch`, or `prerelease` version increments. `identifierBase` + is the base to be used for the `prerelease` identifier. +* `prerelease(v)`: Returns an array of prerelease components, or null + if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]` +* `major(v)`: Return the major version number. +* `minor(v)`: Return the minor version number. +* `patch(v)`: Return the patch version number. +* `intersects(r1, r2, loose)`: Return true if the two supplied ranges + or comparators intersect. +* `parse(v)`: Attempt to parse a string as a semantic version, returning either + a `SemVer` object or `null`. + +### Comparison + +* `gt(v1, v2)`: `v1 > v2` +* `gte(v1, v2)`: `v1 >= v2` +* `lt(v1, v2)`: `v1 < v2` +* `lte(v1, v2)`: `v1 <= v2` +* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent, + even if they're not the same string. You already know how to + compare strings. +* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`. +* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call + the corresponding function above. `"==="` and `"!=="` do simple + string comparison, but are included for completeness. Throws if an + invalid comparison string is provided. +* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if + `v2` is greater. Sorts in ascending order if passed to `Array.sort()`. +* `rcompare(v1, v2)`: The reverse of `compare`. Sorts an array of versions + in descending order when passed to `Array.sort()`. +* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions + are equal. Sorts in ascending order if passed to `Array.sort()`. +* `compareLoose(v1, v2)`: Short for ``compare(v1, v2, { loose: true })`. +* `diff(v1, v2)`: Returns the difference between two versions by the release type + (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`), + or null if the versions are the same. + +### Sorting + +* `sort(versions)`: Returns a sorted array of versions based on the `compareBuild` + function. +* `rsort(versions)`: The reverse of `sort`. Returns an array of versions based on + the `compareBuild` function in descending order. + +### Comparators + +* `intersects(comparator)`: Return true if the comparators intersect + +### Ranges + +* `validRange(range)`: Return the valid range or null if it's not valid +* `satisfies(version, range)`: Return true if the version satisfies the + range. +* `maxSatisfying(versions, range)`: Return the highest version in the list + that satisfies the range, or `null` if none of them do. +* `minSatisfying(versions, range)`: Return the lowest version in the list + that satisfies the range, or `null` if none of them do. +* `minVersion(range)`: Return the lowest version that can match + the given range. +* `gtr(version, range)`: Return `true` if the version is greater than all the + versions possible in the range. +* `ltr(version, range)`: Return `true` if the version is less than all the + versions possible in the range. +* `outside(version, range, hilo)`: Return true if the version is outside + the bounds of the range in either the high or low direction. The + `hilo` argument must be either the string `'>'` or `'<'`. (This is + the function called by `gtr` and `ltr`.) +* `intersects(range)`: Return true if any of the range comparators intersect. +* `simplifyRange(versions, range)`: Return a "simplified" range that + matches the same items in the `versions` list as the range specified. Note + that it does *not* guarantee that it would match the same versions in all + cases, only for the set of versions provided. This is useful when + generating ranges by joining together multiple versions with `||` + programmatically, to provide the user with something a bit more + ergonomic. If the provided range is shorter in string-length than the + generated range, then that is returned. +* `subset(subRange, superRange)`: Return `true` if the `subRange` range is + entirely contained by the `superRange` range. + +Note that, since ranges may be non-contiguous, a version might not be +greater than a range, less than a range, *or* satisfy a range! For +example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9` +until `2.0.0`, so version `1.2.10` would not be greater than the +range (because `2.0.1` satisfies, which is higher), nor less than the +range (since `1.2.8` satisfies, which is lower), and it also does not +satisfy the range. + +If you want to know if a version satisfies or does not satisfy a +range, use the `satisfies(version, range)` function. + +### Coercion + +* `coerce(version, options)`: Coerces a string to semver if possible + +This aims to provide a very forgiving translation of a non-semver string to +semver. It looks for the first digit in a string and consumes all +remaining characters which satisfy at least a partial semver (e.g., `1`, +`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer +versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All +surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes +`3.4.0`). Only text which lacks digits will fail coercion (`version one` +is not valid). The maximum length for any semver component considered for +coercion is 16 characters; longer components will be ignored +(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any +semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value +components are invalid (`9999999999999999.4.7.4` is likely invalid). + +If the `options.rtl` flag is set, then `coerce` will return the right-most +coercible tuple that does not share an ending index with a longer coercible +tuple. For example, `1.2.3.4` will return `2.3.4` in rtl mode, not +`4.0.0`. `1.2.3/4` will return `4.0.0`, because the `4` is not a part of +any other overlapping SemVer tuple. + +If the `options.includePrerelease` flag is set, then the `coerce` result will contain +prerelease and build parts of a version. For example, `1.2.3.4-rc.1+rev.2` +will preserve prerelease `rc.1` and build `rev.2` in the result. + +### Clean + +* `clean(version)`: Clean a string to be a valid semver if possible + +This will return a cleaned and trimmed semver version. If the provided +version is not valid a null will be returned. This does not work for +ranges. + +ex. +* `s.clean(' = v 2.1.5foo')`: `null` +* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'` +* `s.clean(' = v 2.1.5-foo')`: `null` +* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'` +* `s.clean('=v2.1.5')`: `'2.1.5'` +* `s.clean(' =v2.1.5')`: `'2.1.5'` +* `s.clean(' 2.1.5 ')`: `'2.1.5'` +* `s.clean('~1.0.0')`: `null` + +## Constants + +As a convenience, helper constants are exported to provide information about what `node-semver` supports: + +### `RELEASE_TYPES` + +- major +- premajor +- minor +- preminor +- patch +- prepatch +- prerelease + +``` +const semver = require('semver'); + +if (semver.RELEASE_TYPES.includes(arbitraryUserInput)) { + console.log('This is a valid release type!'); +} else { + console.warn('This is NOT a valid release type!'); +} +``` + +### `SEMVER_SPEC_VERSION` + +2.0.0 + +``` +const semver = require('semver'); + +console.log('We are currently using the semver specification version:', semver.SEMVER_SPEC_VERSION); +``` + +## Exported Modules + + + +You may pull in just the part of this semver utility that you need if you +are sensitive to packing and tree-shaking concerns. The main +`require('semver')` export uses getter functions to lazily load the parts +of the API that are used. + +The following modules are available: + +* `require('semver')` +* `require('semver/classes')` +* `require('semver/classes/comparator')` +* `require('semver/classes/range')` +* `require('semver/classes/semver')` +* `require('semver/functions/clean')` +* `require('semver/functions/cmp')` +* `require('semver/functions/coerce')` +* `require('semver/functions/compare')` +* `require('semver/functions/compare-build')` +* `require('semver/functions/compare-loose')` +* `require('semver/functions/diff')` +* `require('semver/functions/eq')` +* `require('semver/functions/gt')` +* `require('semver/functions/gte')` +* `require('semver/functions/inc')` +* `require('semver/functions/lt')` +* `require('semver/functions/lte')` +* `require('semver/functions/major')` +* `require('semver/functions/minor')` +* `require('semver/functions/neq')` +* `require('semver/functions/parse')` +* `require('semver/functions/patch')` +* `require('semver/functions/prerelease')` +* `require('semver/functions/rcompare')` +* `require('semver/functions/rsort')` +* `require('semver/functions/satisfies')` +* `require('semver/functions/sort')` +* `require('semver/functions/valid')` +* `require('semver/ranges/gtr')` +* `require('semver/ranges/intersects')` +* `require('semver/ranges/ltr')` +* `require('semver/ranges/max-satisfying')` +* `require('semver/ranges/min-satisfying')` +* `require('semver/ranges/min-version')` +* `require('semver/ranges/outside')` +* `require('semver/ranges/simplify')` +* `require('semver/ranges/subset')` +* `require('semver/ranges/to-comparators')` +* `require('semver/ranges/valid')` + diff --git a/week-3/02-course-app-easy/node_modules/semver/bin/semver.js b/week-3/02-course-app-easy/node_modules/semver/bin/semver.js new file mode 100644 index 000000000..f62b566f7 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/bin/semver.js @@ -0,0 +1,188 @@ +#!/usr/bin/env node +// Standalone semver comparison program. +// Exits successfully and prints matching version(s) if +// any supplied version is valid and passes all tests. + +const argv = process.argv.slice(2) + +let versions = [] + +const range = [] + +let inc = null + +const version = require('../package.json').version + +let loose = false + +let includePrerelease = false + +let coerce = false + +let rtl = false + +let identifier + +let identifierBase + +const semver = require('../') +const parseOptions = require('../internal/parse-options') + +let reverse = false + +let options = {} + +const main = () => { + if (!argv.length) { + return help() + } + while (argv.length) { + let a = argv.shift() + const indexOfEqualSign = a.indexOf('=') + if (indexOfEqualSign !== -1) { + const value = a.slice(indexOfEqualSign + 1) + a = a.slice(0, indexOfEqualSign) + argv.unshift(value) + } + switch (a) { + case '-rv': case '-rev': case '--rev': case '--reverse': + reverse = true + break + case '-l': case '--loose': + loose = true + break + case '-p': case '--include-prerelease': + includePrerelease = true + break + case '-v': case '--version': + versions.push(argv.shift()) + break + case '-i': case '--inc': case '--increment': + switch (argv[0]) { + case 'major': case 'minor': case 'patch': case 'prerelease': + case 'premajor': case 'preminor': case 'prepatch': + inc = argv.shift() + break + default: + inc = 'patch' + break + } + break + case '--preid': + identifier = argv.shift() + break + case '-r': case '--range': + range.push(argv.shift()) + break + case '-n': + identifierBase = argv.shift() + if (identifierBase === 'false') { + identifierBase = false + } + break + case '-c': case '--coerce': + coerce = true + break + case '--rtl': + rtl = true + break + case '--ltr': + rtl = false + break + case '-h': case '--help': case '-?': + return help() + default: + versions.push(a) + break + } + } + + options = parseOptions({ loose, includePrerelease, rtl }) + + versions = versions.map((v) => { + return coerce ? (semver.coerce(v, options) || { version: v }).version : v + }).filter((v) => { + return semver.valid(v) + }) + if (!versions.length) { + return fail() + } + if (inc && (versions.length !== 1 || range.length)) { + return failInc() + } + + for (let i = 0, l = range.length; i < l; i++) { + versions = versions.filter((v) => { + return semver.satisfies(v, range[i], options) + }) + if (!versions.length) { + return fail() + } + } + versions + .sort((a, b) => semver[reverse ? 'rcompare' : 'compare'](a, b, options)) + .map(v => semver.clean(v, options)) + .map(v => inc ? semver.inc(v, inc, options, identifier, identifierBase) : v) + .forEach(v => console.log(v)) +} + +const failInc = () => { + console.error('--inc can only be used on a single version with no range') + fail() +} + +const fail = () => process.exit(1) + +const help = () => console.log( +`SemVer ${version} + +A JavaScript implementation of the https://semver.org/ specification +Copyright Isaac Z. Schlueter + +Usage: semver [options] [ [...]] +Prints valid versions sorted by SemVer precedence + +Options: +-r --range + Print versions that match the specified range. + +-i --increment [] + Increment a version by the specified level. Level can + be one of: major, minor, patch, premajor, preminor, + prepatch, or prerelease. Default level is 'patch'. + Only one version may be specified. + +--preid + Identifier to be used to prefix premajor, preminor, + prepatch or prerelease version increments. + +-l --loose + Interpret versions and ranges loosely + +-p --include-prerelease + Always include prerelease versions in range matching + +-c --coerce + Coerce a string into SemVer if possible + (does not imply --loose) + +--rtl + Coerce version strings right to left + +--ltr + Coerce version strings left to right (default) + +-n + Base number to be used for the prerelease identifier. + Can be either 0 or 1, or false to omit the number altogether. + Defaults to 0. + +Program exits successfully if any valid version satisfies +all supplied ranges, and prints all satisfying versions. + +If no satisfying versions are found, then exits failure. + +Versions are printed in ascending order, so supplying +multiple versions to the utility will just sort them.`) + +main() diff --git a/week-3/02-course-app-easy/node_modules/semver/classes/comparator.js b/week-3/02-course-app-easy/node_modules/semver/classes/comparator.js new file mode 100644 index 000000000..3d39c0eef --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/classes/comparator.js @@ -0,0 +1,141 @@ +const ANY = Symbol('SemVer ANY') +// hoisted class for cyclic dependency +class Comparator { + static get ANY () { + return ANY + } + + constructor (comp, options) { + options = parseOptions(options) + + if (comp instanceof Comparator) { + if (comp.loose === !!options.loose) { + return comp + } else { + comp = comp.value + } + } + + comp = comp.trim().split(/\s+/).join(' ') + debug('comparator', comp, options) + this.options = options + this.loose = !!options.loose + this.parse(comp) + + if (this.semver === ANY) { + this.value = '' + } else { + this.value = this.operator + this.semver.version + } + + debug('comp', this) + } + + parse (comp) { + const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR] + const m = comp.match(r) + + if (!m) { + throw new TypeError(`Invalid comparator: ${comp}`) + } + + this.operator = m[1] !== undefined ? m[1] : '' + if (this.operator === '=') { + this.operator = '' + } + + // if it literally is just '>' or '' then allow anything. + if (!m[2]) { + this.semver = ANY + } else { + this.semver = new SemVer(m[2], this.options.loose) + } + } + + toString () { + return this.value + } + + test (version) { + debug('Comparator.test', version, this.options.loose) + + if (this.semver === ANY || version === ANY) { + return true + } + + if (typeof version === 'string') { + try { + version = new SemVer(version, this.options) + } catch (er) { + return false + } + } + + return cmp(version, this.operator, this.semver, this.options) + } + + intersects (comp, options) { + if (!(comp instanceof Comparator)) { + throw new TypeError('a Comparator is required') + } + + if (this.operator === '') { + if (this.value === '') { + return true + } + return new Range(comp.value, options).test(this.value) + } else if (comp.operator === '') { + if (comp.value === '') { + return true + } + return new Range(this.value, options).test(comp.semver) + } + + options = parseOptions(options) + + // Special cases where nothing can possibly be lower + if (options.includePrerelease && + (this.value === '<0.0.0-0' || comp.value === '<0.0.0-0')) { + return false + } + if (!options.includePrerelease && + (this.value.startsWith('<0.0.0') || comp.value.startsWith('<0.0.0'))) { + return false + } + + // Same direction increasing (> or >=) + if (this.operator.startsWith('>') && comp.operator.startsWith('>')) { + return true + } + // Same direction decreasing (< or <=) + if (this.operator.startsWith('<') && comp.operator.startsWith('<')) { + return true + } + // same SemVer and both sides are inclusive (<= or >=) + if ( + (this.semver.version === comp.semver.version) && + this.operator.includes('=') && comp.operator.includes('=')) { + return true + } + // opposite directions less than + if (cmp(this.semver, '<', comp.semver, options) && + this.operator.startsWith('>') && comp.operator.startsWith('<')) { + return true + } + // opposite directions greater than + if (cmp(this.semver, '>', comp.semver, options) && + this.operator.startsWith('<') && comp.operator.startsWith('>')) { + return true + } + return false + } +} + +module.exports = Comparator + +const parseOptions = require('../internal/parse-options') +const { safeRe: re, t } = require('../internal/re') +const cmp = require('../functions/cmp') +const debug = require('../internal/debug') +const SemVer = require('./semver') +const Range = require('./range') diff --git a/week-3/02-course-app-easy/node_modules/semver/classes/index.js b/week-3/02-course-app-easy/node_modules/semver/classes/index.js new file mode 100644 index 000000000..5e3f5c9b1 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/classes/index.js @@ -0,0 +1,5 @@ +module.exports = { + SemVer: require('./semver.js'), + Range: require('./range.js'), + Comparator: require('./comparator.js'), +} diff --git a/week-3/02-course-app-easy/node_modules/semver/classes/range.js b/week-3/02-course-app-easy/node_modules/semver/classes/range.js new file mode 100644 index 000000000..117b45a2b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/classes/range.js @@ -0,0 +1,540 @@ +// hoisted class for cyclic dependency +class Range { + constructor (range, options) { + options = parseOptions(options) + + if (range instanceof Range) { + if ( + range.loose === !!options.loose && + range.includePrerelease === !!options.includePrerelease + ) { + return range + } else { + return new Range(range.raw, options) + } + } + + if (range instanceof Comparator) { + // just put it in the set and return + this.raw = range.value + this.set = [[range]] + this.format() + return this + } + + this.options = options + this.loose = !!options.loose + this.includePrerelease = !!options.includePrerelease + + // First reduce all whitespace as much as possible so we do not have to rely + // on potentially slow regexes like \s*. This is then stored and used for + // future error messages as well. + this.raw = range + .trim() + .split(/\s+/) + .join(' ') + + // First, split on || + this.set = this.raw + .split('||') + // map the range to a 2d array of comparators + .map(r => this.parseRange(r.trim())) + // throw out any comparator lists that are empty + // this generally means that it was not a valid range, which is allowed + // in loose mode, but will still throw if the WHOLE range is invalid. + .filter(c => c.length) + + if (!this.set.length) { + throw new TypeError(`Invalid SemVer Range: ${this.raw}`) + } + + // if we have any that are not the null set, throw out null sets. + if (this.set.length > 1) { + // keep the first one, in case they're all null sets + const first = this.set[0] + this.set = this.set.filter(c => !isNullSet(c[0])) + if (this.set.length === 0) { + this.set = [first] + } else if (this.set.length > 1) { + // if we have any that are *, then the range is just * + for (const c of this.set) { + if (c.length === 1 && isAny(c[0])) { + this.set = [c] + break + } + } + } + } + + this.format() + } + + format () { + this.range = this.set + .map((comps) => comps.join(' ').trim()) + .join('||') + .trim() + return this.range + } + + toString () { + return this.range + } + + parseRange (range) { + // memoize range parsing for performance. + // this is a very hot path, and fully deterministic. + const memoOpts = + (this.options.includePrerelease && FLAG_INCLUDE_PRERELEASE) | + (this.options.loose && FLAG_LOOSE) + const memoKey = memoOpts + ':' + range + const cached = cache.get(memoKey) + if (cached) { + return cached + } + + const loose = this.options.loose + // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4` + const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE] + range = range.replace(hr, hyphenReplace(this.options.includePrerelease)) + debug('hyphen replace', range) + + // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5` + range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace) + debug('comparator trim', range) + + // `~ 1.2.3` => `~1.2.3` + range = range.replace(re[t.TILDETRIM], tildeTrimReplace) + debug('tilde trim', range) + + // `^ 1.2.3` => `^1.2.3` + range = range.replace(re[t.CARETTRIM], caretTrimReplace) + debug('caret trim', range) + + // At this point, the range is completely trimmed and + // ready to be split into comparators. + + let rangeList = range + .split(' ') + .map(comp => parseComparator(comp, this.options)) + .join(' ') + .split(/\s+/) + // >=0.0.0 is equivalent to * + .map(comp => replaceGTE0(comp, this.options)) + + if (loose) { + // in loose mode, throw out any that are not valid comparators + rangeList = rangeList.filter(comp => { + debug('loose invalid filter', comp, this.options) + return !!comp.match(re[t.COMPARATORLOOSE]) + }) + } + debug('range list', rangeList) + + // if any comparators are the null set, then replace with JUST null set + // if more than one comparator, remove any * comparators + // also, don't include the same comparator more than once + const rangeMap = new Map() + const comparators = rangeList.map(comp => new Comparator(comp, this.options)) + for (const comp of comparators) { + if (isNullSet(comp)) { + return [comp] + } + rangeMap.set(comp.value, comp) + } + if (rangeMap.size > 1 && rangeMap.has('')) { + rangeMap.delete('') + } + + const result = [...rangeMap.values()] + cache.set(memoKey, result) + return result + } + + intersects (range, options) { + if (!(range instanceof Range)) { + throw new TypeError('a Range is required') + } + + return this.set.some((thisComparators) => { + return ( + isSatisfiable(thisComparators, options) && + range.set.some((rangeComparators) => { + return ( + isSatisfiable(rangeComparators, options) && + thisComparators.every((thisComparator) => { + return rangeComparators.every((rangeComparator) => { + return thisComparator.intersects(rangeComparator, options) + }) + }) + ) + }) + ) + }) + } + + // if ANY of the sets match ALL of its comparators, then pass + test (version) { + if (!version) { + return false + } + + if (typeof version === 'string') { + try { + version = new SemVer(version, this.options) + } catch (er) { + return false + } + } + + for (let i = 0; i < this.set.length; i++) { + if (testSet(this.set[i], version, this.options)) { + return true + } + } + return false + } +} + +module.exports = Range + +const LRU = require('../internal/lrucache') +const cache = new LRU() + +const parseOptions = require('../internal/parse-options') +const Comparator = require('./comparator') +const debug = require('../internal/debug') +const SemVer = require('./semver') +const { + safeRe: re, + t, + comparatorTrimReplace, + tildeTrimReplace, + caretTrimReplace, +} = require('../internal/re') +const { FLAG_INCLUDE_PRERELEASE, FLAG_LOOSE } = require('../internal/constants') + +const isNullSet = c => c.value === '<0.0.0-0' +const isAny = c => c.value === '' + +// take a set of comparators and determine whether there +// exists a version which can satisfy it +const isSatisfiable = (comparators, options) => { + let result = true + const remainingComparators = comparators.slice() + let testComparator = remainingComparators.pop() + + while (result && remainingComparators.length) { + result = remainingComparators.every((otherComparator) => { + return testComparator.intersects(otherComparator, options) + }) + + testComparator = remainingComparators.pop() + } + + return result +} + +// comprised of xranges, tildes, stars, and gtlt's at this point. +// already replaced the hyphen ranges +// turn into a set of JUST comparators. +const parseComparator = (comp, options) => { + debug('comp', comp, options) + comp = replaceCarets(comp, options) + debug('caret', comp) + comp = replaceTildes(comp, options) + debug('tildes', comp) + comp = replaceXRanges(comp, options) + debug('xrange', comp) + comp = replaceStars(comp, options) + debug('stars', comp) + return comp +} + +const isX = id => !id || id.toLowerCase() === 'x' || id === '*' + +// ~, ~> --> * (any, kinda silly) +// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0 +// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0 +// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0 +// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0 +// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0 +// ~0.0.1 --> >=0.0.1 <0.1.0-0 +const replaceTildes = (comp, options) => { + return comp + .trim() + .split(/\s+/) + .map((c) => replaceTilde(c, options)) + .join(' ') +} + +const replaceTilde = (comp, options) => { + const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE] + return comp.replace(r, (_, M, m, p, pr) => { + debug('tilde', comp, _, M, m, p, pr) + let ret + + if (isX(M)) { + ret = '' + } else if (isX(m)) { + ret = `>=${M}.0.0 <${+M + 1}.0.0-0` + } else if (isX(p)) { + // ~1.2 == >=1.2.0 <1.3.0-0 + ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0` + } else if (pr) { + debug('replaceTilde pr', pr) + ret = `>=${M}.${m}.${p}-${pr + } <${M}.${+m + 1}.0-0` + } else { + // ~1.2.3 == >=1.2.3 <1.3.0-0 + ret = `>=${M}.${m}.${p + } <${M}.${+m + 1}.0-0` + } + + debug('tilde return', ret) + return ret + }) +} + +// ^ --> * (any, kinda silly) +// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0 +// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0 +// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0 +// ^1.2.3 --> >=1.2.3 <2.0.0-0 +// ^1.2.0 --> >=1.2.0 <2.0.0-0 +// ^0.0.1 --> >=0.0.1 <0.0.2-0 +// ^0.1.0 --> >=0.1.0 <0.2.0-0 +const replaceCarets = (comp, options) => { + return comp + .trim() + .split(/\s+/) + .map((c) => replaceCaret(c, options)) + .join(' ') +} + +const replaceCaret = (comp, options) => { + debug('caret', comp, options) + const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET] + const z = options.includePrerelease ? '-0' : '' + return comp.replace(r, (_, M, m, p, pr) => { + debug('caret', comp, _, M, m, p, pr) + let ret + + if (isX(M)) { + ret = '' + } else if (isX(m)) { + ret = `>=${M}.0.0${z} <${+M + 1}.0.0-0` + } else if (isX(p)) { + if (M === '0') { + ret = `>=${M}.${m}.0${z} <${M}.${+m + 1}.0-0` + } else { + ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0` + } + } else if (pr) { + debug('replaceCaret pr', pr) + if (M === '0') { + if (m === '0') { + ret = `>=${M}.${m}.${p}-${pr + } <${M}.${m}.${+p + 1}-0` + } else { + ret = `>=${M}.${m}.${p}-${pr + } <${M}.${+m + 1}.0-0` + } + } else { + ret = `>=${M}.${m}.${p}-${pr + } <${+M + 1}.0.0-0` + } + } else { + debug('no pr') + if (M === '0') { + if (m === '0') { + ret = `>=${M}.${m}.${p + }${z} <${M}.${m}.${+p + 1}-0` + } else { + ret = `>=${M}.${m}.${p + }${z} <${M}.${+m + 1}.0-0` + } + } else { + ret = `>=${M}.${m}.${p + } <${+M + 1}.0.0-0` + } + } + + debug('caret return', ret) + return ret + }) +} + +const replaceXRanges = (comp, options) => { + debug('replaceXRanges', comp, options) + return comp + .split(/\s+/) + .map((c) => replaceXRange(c, options)) + .join(' ') +} + +const replaceXRange = (comp, options) => { + comp = comp.trim() + const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE] + return comp.replace(r, (ret, gtlt, M, m, p, pr) => { + debug('xRange', comp, ret, gtlt, M, m, p, pr) + const xM = isX(M) + const xm = xM || isX(m) + const xp = xm || isX(p) + const anyX = xp + + if (gtlt === '=' && anyX) { + gtlt = '' + } + + // if we're including prereleases in the match, then we need + // to fix this to -0, the lowest possible prerelease value + pr = options.includePrerelease ? '-0' : '' + + if (xM) { + if (gtlt === '>' || gtlt === '<') { + // nothing is allowed + ret = '<0.0.0-0' + } else { + // nothing is forbidden + ret = '*' + } + } else if (gtlt && anyX) { + // we know patch is an x, because we have any x at all. + // replace X with 0 + if (xm) { + m = 0 + } + p = 0 + + if (gtlt === '>') { + // >1 => >=2.0.0 + // >1.2 => >=1.3.0 + gtlt = '>=' + if (xm) { + M = +M + 1 + m = 0 + p = 0 + } else { + m = +m + 1 + p = 0 + } + } else if (gtlt === '<=') { + // <=0.7.x is actually <0.8.0, since any 0.7.x should + // pass. Similarly, <=7.x is actually <8.0.0, etc. + gtlt = '<' + if (xm) { + M = +M + 1 + } else { + m = +m + 1 + } + } + + if (gtlt === '<') { + pr = '-0' + } + + ret = `${gtlt + M}.${m}.${p}${pr}` + } else if (xm) { + ret = `>=${M}.0.0${pr} <${+M + 1}.0.0-0` + } else if (xp) { + ret = `>=${M}.${m}.0${pr + } <${M}.${+m + 1}.0-0` + } + + debug('xRange return', ret) + + return ret + }) +} + +// Because * is AND-ed with everything else in the comparator, +// and '' means "any version", just remove the *s entirely. +const replaceStars = (comp, options) => { + debug('replaceStars', comp, options) + // Looseness is ignored here. star is always as loose as it gets! + return comp + .trim() + .replace(re[t.STAR], '') +} + +const replaceGTE0 = (comp, options) => { + debug('replaceGTE0', comp, options) + return comp + .trim() + .replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '') +} + +// This function is passed to string.replace(re[t.HYPHENRANGE]) +// M, m, patch, prerelease, build +// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5 +// 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do +// 1.2 - 3.4 => >=1.2.0 <3.5.0-0 +// TODO build? +const hyphenReplace = incPr => ($0, + from, fM, fm, fp, fpr, fb, + to, tM, tm, tp, tpr) => { + if (isX(fM)) { + from = '' + } else if (isX(fm)) { + from = `>=${fM}.0.0${incPr ? '-0' : ''}` + } else if (isX(fp)) { + from = `>=${fM}.${fm}.0${incPr ? '-0' : ''}` + } else if (fpr) { + from = `>=${from}` + } else { + from = `>=${from}${incPr ? '-0' : ''}` + } + + if (isX(tM)) { + to = '' + } else if (isX(tm)) { + to = `<${+tM + 1}.0.0-0` + } else if (isX(tp)) { + to = `<${tM}.${+tm + 1}.0-0` + } else if (tpr) { + to = `<=${tM}.${tm}.${tp}-${tpr}` + } else if (incPr) { + to = `<${tM}.${tm}.${+tp + 1}-0` + } else { + to = `<=${to}` + } + + return `${from} ${to}`.trim() +} + +const testSet = (set, version, options) => { + for (let i = 0; i < set.length; i++) { + if (!set[i].test(version)) { + return false + } + } + + if (version.prerelease.length && !options.includePrerelease) { + // Find the set of versions that are allowed to have prereleases + // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0 + // That should allow `1.2.3-pr.2` to pass. + // However, `1.2.4-alpha.notready` should NOT be allowed, + // even though it's within the range set by the comparators. + for (let i = 0; i < set.length; i++) { + debug(set[i].semver) + if (set[i].semver === Comparator.ANY) { + continue + } + + if (set[i].semver.prerelease.length > 0) { + const allowed = set[i].semver + if (allowed.major === version.major && + allowed.minor === version.minor && + allowed.patch === version.patch) { + return true + } + } + } + + // Version has a -pre, but it's not one of the ones we like. + return false + } + + return true +} diff --git a/week-3/02-course-app-easy/node_modules/semver/classes/semver.js b/week-3/02-course-app-easy/node_modules/semver/classes/semver.js new file mode 100644 index 000000000..13e66ce44 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/classes/semver.js @@ -0,0 +1,302 @@ +const debug = require('../internal/debug') +const { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants') +const { safeRe: re, t } = require('../internal/re') + +const parseOptions = require('../internal/parse-options') +const { compareIdentifiers } = require('../internal/identifiers') +class SemVer { + constructor (version, options) { + options = parseOptions(options) + + if (version instanceof SemVer) { + if (version.loose === !!options.loose && + version.includePrerelease === !!options.includePrerelease) { + return version + } else { + version = version.version + } + } else if (typeof version !== 'string') { + throw new TypeError(`Invalid version. Must be a string. Got type "${typeof version}".`) + } + + if (version.length > MAX_LENGTH) { + throw new TypeError( + `version is longer than ${MAX_LENGTH} characters` + ) + } + + debug('SemVer', version, options) + this.options = options + this.loose = !!options.loose + // this isn't actually relevant for versions, but keep it so that we + // don't run into trouble passing this.options around. + this.includePrerelease = !!options.includePrerelease + + const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL]) + + if (!m) { + throw new TypeError(`Invalid Version: ${version}`) + } + + this.raw = version + + // these are actually numbers + this.major = +m[1] + this.minor = +m[2] + this.patch = +m[3] + + if (this.major > MAX_SAFE_INTEGER || this.major < 0) { + throw new TypeError('Invalid major version') + } + + if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) { + throw new TypeError('Invalid minor version') + } + + if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) { + throw new TypeError('Invalid patch version') + } + + // numberify any prerelease numeric ids + if (!m[4]) { + this.prerelease = [] + } else { + this.prerelease = m[4].split('.').map((id) => { + if (/^[0-9]+$/.test(id)) { + const num = +id + if (num >= 0 && num < MAX_SAFE_INTEGER) { + return num + } + } + return id + }) + } + + this.build = m[5] ? m[5].split('.') : [] + this.format() + } + + format () { + this.version = `${this.major}.${this.minor}.${this.patch}` + if (this.prerelease.length) { + this.version += `-${this.prerelease.join('.')}` + } + return this.version + } + + toString () { + return this.version + } + + compare (other) { + debug('SemVer.compare', this.version, this.options, other) + if (!(other instanceof SemVer)) { + if (typeof other === 'string' && other === this.version) { + return 0 + } + other = new SemVer(other, this.options) + } + + if (other.version === this.version) { + return 0 + } + + return this.compareMain(other) || this.comparePre(other) + } + + compareMain (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + return ( + compareIdentifiers(this.major, other.major) || + compareIdentifiers(this.minor, other.minor) || + compareIdentifiers(this.patch, other.patch) + ) + } + + comparePre (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + // NOT having a prerelease is > having one + if (this.prerelease.length && !other.prerelease.length) { + return -1 + } else if (!this.prerelease.length && other.prerelease.length) { + return 1 + } else if (!this.prerelease.length && !other.prerelease.length) { + return 0 + } + + let i = 0 + do { + const a = this.prerelease[i] + const b = other.prerelease[i] + debug('prerelease compare', i, a, b) + if (a === undefined && b === undefined) { + return 0 + } else if (b === undefined) { + return 1 + } else if (a === undefined) { + return -1 + } else if (a === b) { + continue + } else { + return compareIdentifiers(a, b) + } + } while (++i) + } + + compareBuild (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + let i = 0 + do { + const a = this.build[i] + const b = other.build[i] + debug('build compare', i, a, b) + if (a === undefined && b === undefined) { + return 0 + } else if (b === undefined) { + return 1 + } else if (a === undefined) { + return -1 + } else if (a === b) { + continue + } else { + return compareIdentifiers(a, b) + } + } while (++i) + } + + // preminor will bump the version up to the next minor release, and immediately + // down to pre-release. premajor and prepatch work the same way. + inc (release, identifier, identifierBase) { + switch (release) { + case 'premajor': + this.prerelease.length = 0 + this.patch = 0 + this.minor = 0 + this.major++ + this.inc('pre', identifier, identifierBase) + break + case 'preminor': + this.prerelease.length = 0 + this.patch = 0 + this.minor++ + this.inc('pre', identifier, identifierBase) + break + case 'prepatch': + // If this is already a prerelease, it will bump to the next version + // drop any prereleases that might already exist, since they are not + // relevant at this point. + this.prerelease.length = 0 + this.inc('patch', identifier, identifierBase) + this.inc('pre', identifier, identifierBase) + break + // If the input is a non-prerelease version, this acts the same as + // prepatch. + case 'prerelease': + if (this.prerelease.length === 0) { + this.inc('patch', identifier, identifierBase) + } + this.inc('pre', identifier, identifierBase) + break + + case 'major': + // If this is a pre-major version, bump up to the same major version. + // Otherwise increment major. + // 1.0.0-5 bumps to 1.0.0 + // 1.1.0 bumps to 2.0.0 + if ( + this.minor !== 0 || + this.patch !== 0 || + this.prerelease.length === 0 + ) { + this.major++ + } + this.minor = 0 + this.patch = 0 + this.prerelease = [] + break + case 'minor': + // If this is a pre-minor version, bump up to the same minor version. + // Otherwise increment minor. + // 1.2.0-5 bumps to 1.2.0 + // 1.2.1 bumps to 1.3.0 + if (this.patch !== 0 || this.prerelease.length === 0) { + this.minor++ + } + this.patch = 0 + this.prerelease = [] + break + case 'patch': + // If this is not a pre-release version, it will increment the patch. + // If it is a pre-release it will bump up to the same patch version. + // 1.2.0-5 patches to 1.2.0 + // 1.2.0 patches to 1.2.1 + if (this.prerelease.length === 0) { + this.patch++ + } + this.prerelease = [] + break + // This probably shouldn't be used publicly. + // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction. + case 'pre': { + const base = Number(identifierBase) ? 1 : 0 + + if (!identifier && identifierBase === false) { + throw new Error('invalid increment argument: identifier is empty') + } + + if (this.prerelease.length === 0) { + this.prerelease = [base] + } else { + let i = this.prerelease.length + while (--i >= 0) { + if (typeof this.prerelease[i] === 'number') { + this.prerelease[i]++ + i = -2 + } + } + if (i === -1) { + // didn't increment anything + if (identifier === this.prerelease.join('.') && identifierBase === false) { + throw new Error('invalid increment argument: identifier already exists') + } + this.prerelease.push(base) + } + } + if (identifier) { + // 1.2.0-beta.1 bumps to 1.2.0-beta.2, + // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0 + let prerelease = [identifier, base] + if (identifierBase === false) { + prerelease = [identifier] + } + if (compareIdentifiers(this.prerelease[0], identifier) === 0) { + if (isNaN(this.prerelease[1])) { + this.prerelease = prerelease + } + } else { + this.prerelease = prerelease + } + } + break + } + default: + throw new Error(`invalid increment argument: ${release}`) + } + this.raw = this.format() + if (this.build.length) { + this.raw += `+${this.build.join('.')}` + } + return this + } +} + +module.exports = SemVer diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/clean.js b/week-3/02-course-app-easy/node_modules/semver/functions/clean.js new file mode 100644 index 000000000..811fe6b82 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/clean.js @@ -0,0 +1,6 @@ +const parse = require('./parse') +const clean = (version, options) => { + const s = parse(version.trim().replace(/^[=v]+/, ''), options) + return s ? s.version : null +} +module.exports = clean diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/cmp.js b/week-3/02-course-app-easy/node_modules/semver/functions/cmp.js new file mode 100644 index 000000000..401190947 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/cmp.js @@ -0,0 +1,52 @@ +const eq = require('./eq') +const neq = require('./neq') +const gt = require('./gt') +const gte = require('./gte') +const lt = require('./lt') +const lte = require('./lte') + +const cmp = (a, op, b, loose) => { + switch (op) { + case '===': + if (typeof a === 'object') { + a = a.version + } + if (typeof b === 'object') { + b = b.version + } + return a === b + + case '!==': + if (typeof a === 'object') { + a = a.version + } + if (typeof b === 'object') { + b = b.version + } + return a !== b + + case '': + case '=': + case '==': + return eq(a, b, loose) + + case '!=': + return neq(a, b, loose) + + case '>': + return gt(a, b, loose) + + case '>=': + return gte(a, b, loose) + + case '<': + return lt(a, b, loose) + + case '<=': + return lte(a, b, loose) + + default: + throw new TypeError(`Invalid operator: ${op}`) + } +} +module.exports = cmp diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/coerce.js b/week-3/02-course-app-easy/node_modules/semver/functions/coerce.js new file mode 100644 index 000000000..b378dcea4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/coerce.js @@ -0,0 +1,60 @@ +const SemVer = require('../classes/semver') +const parse = require('./parse') +const { safeRe: re, t } = require('../internal/re') + +const coerce = (version, options) => { + if (version instanceof SemVer) { + return version + } + + if (typeof version === 'number') { + version = String(version) + } + + if (typeof version !== 'string') { + return null + } + + options = options || {} + + let match = null + if (!options.rtl) { + match = version.match(options.includePrerelease ? re[t.COERCEFULL] : re[t.COERCE]) + } else { + // Find the right-most coercible string that does not share + // a terminus with a more left-ward coercible string. + // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4' + // With includePrerelease option set, '1.2.3.4-rc' wants to coerce '2.3.4-rc', not '2.3.4' + // + // Walk through the string checking with a /g regexp + // Manually set the index so as to pick up overlapping matches. + // Stop when we get a match that ends at the string end, since no + // coercible string can be more right-ward without the same terminus. + const coerceRtlRegex = options.includePrerelease ? re[t.COERCERTLFULL] : re[t.COERCERTL] + let next + while ((next = coerceRtlRegex.exec(version)) && + (!match || match.index + match[0].length !== version.length) + ) { + if (!match || + next.index + next[0].length !== match.index + match[0].length) { + match = next + } + coerceRtlRegex.lastIndex = next.index + next[1].length + next[2].length + } + // leave it in a clean state + coerceRtlRegex.lastIndex = -1 + } + + if (match === null) { + return null + } + + const major = match[2] + const minor = match[3] || '0' + const patch = match[4] || '0' + const prerelease = options.includePrerelease && match[5] ? `-${match[5]}` : '' + const build = options.includePrerelease && match[6] ? `+${match[6]}` : '' + + return parse(`${major}.${minor}.${patch}${prerelease}${build}`, options) +} +module.exports = coerce diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/compare-build.js b/week-3/02-course-app-easy/node_modules/semver/functions/compare-build.js new file mode 100644 index 000000000..9eb881bef --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/compare-build.js @@ -0,0 +1,7 @@ +const SemVer = require('../classes/semver') +const compareBuild = (a, b, loose) => { + const versionA = new SemVer(a, loose) + const versionB = new SemVer(b, loose) + return versionA.compare(versionB) || versionA.compareBuild(versionB) +} +module.exports = compareBuild diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/compare-loose.js b/week-3/02-course-app-easy/node_modules/semver/functions/compare-loose.js new file mode 100644 index 000000000..4881fbe00 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/compare-loose.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const compareLoose = (a, b) => compare(a, b, true) +module.exports = compareLoose diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/compare.js b/week-3/02-course-app-easy/node_modules/semver/functions/compare.js new file mode 100644 index 000000000..748b7afa5 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/compare.js @@ -0,0 +1,5 @@ +const SemVer = require('../classes/semver') +const compare = (a, b, loose) => + new SemVer(a, loose).compare(new SemVer(b, loose)) + +module.exports = compare diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/diff.js b/week-3/02-course-app-easy/node_modules/semver/functions/diff.js new file mode 100644 index 000000000..fc224e302 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/diff.js @@ -0,0 +1,65 @@ +const parse = require('./parse.js') + +const diff = (version1, version2) => { + const v1 = parse(version1, null, true) + const v2 = parse(version2, null, true) + const comparison = v1.compare(v2) + + if (comparison === 0) { + return null + } + + const v1Higher = comparison > 0 + const highVersion = v1Higher ? v1 : v2 + const lowVersion = v1Higher ? v2 : v1 + const highHasPre = !!highVersion.prerelease.length + const lowHasPre = !!lowVersion.prerelease.length + + if (lowHasPre && !highHasPre) { + // Going from prerelease -> no prerelease requires some special casing + + // If the low version has only a major, then it will always be a major + // Some examples: + // 1.0.0-1 -> 1.0.0 + // 1.0.0-1 -> 1.1.1 + // 1.0.0-1 -> 2.0.0 + if (!lowVersion.patch && !lowVersion.minor) { + return 'major' + } + + // Otherwise it can be determined by checking the high version + + if (highVersion.patch) { + // anything higher than a patch bump would result in the wrong version + return 'patch' + } + + if (highVersion.minor) { + // anything higher than a minor bump would result in the wrong version + return 'minor' + } + + // bumping major/minor/patch all have same result + return 'major' + } + + // add the `pre` prefix if we are going to a prerelease version + const prefix = highHasPre ? 'pre' : '' + + if (v1.major !== v2.major) { + return prefix + 'major' + } + + if (v1.minor !== v2.minor) { + return prefix + 'minor' + } + + if (v1.patch !== v2.patch) { + return prefix + 'patch' + } + + // high and low are preleases + return 'prerelease' +} + +module.exports = diff diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/eq.js b/week-3/02-course-app-easy/node_modules/semver/functions/eq.js new file mode 100644 index 000000000..271fed976 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/eq.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const eq = (a, b, loose) => compare(a, b, loose) === 0 +module.exports = eq diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/gt.js b/week-3/02-course-app-easy/node_modules/semver/functions/gt.js new file mode 100644 index 000000000..d9b2156d8 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/gt.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const gt = (a, b, loose) => compare(a, b, loose) > 0 +module.exports = gt diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/gte.js b/week-3/02-course-app-easy/node_modules/semver/functions/gte.js new file mode 100644 index 000000000..5aeaa6347 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/gte.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const gte = (a, b, loose) => compare(a, b, loose) >= 0 +module.exports = gte diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/inc.js b/week-3/02-course-app-easy/node_modules/semver/functions/inc.js new file mode 100644 index 000000000..7670b1bea --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/inc.js @@ -0,0 +1,19 @@ +const SemVer = require('../classes/semver') + +const inc = (version, release, options, identifier, identifierBase) => { + if (typeof (options) === 'string') { + identifierBase = identifier + identifier = options + options = undefined + } + + try { + return new SemVer( + version instanceof SemVer ? version.version : version, + options + ).inc(release, identifier, identifierBase).version + } catch (er) { + return null + } +} +module.exports = inc diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/lt.js b/week-3/02-course-app-easy/node_modules/semver/functions/lt.js new file mode 100644 index 000000000..b440ab7d4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/lt.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const lt = (a, b, loose) => compare(a, b, loose) < 0 +module.exports = lt diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/lte.js b/week-3/02-course-app-easy/node_modules/semver/functions/lte.js new file mode 100644 index 000000000..6dcc95650 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/lte.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const lte = (a, b, loose) => compare(a, b, loose) <= 0 +module.exports = lte diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/major.js b/week-3/02-course-app-easy/node_modules/semver/functions/major.js new file mode 100644 index 000000000..4283165e9 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/major.js @@ -0,0 +1,3 @@ +const SemVer = require('../classes/semver') +const major = (a, loose) => new SemVer(a, loose).major +module.exports = major diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/minor.js b/week-3/02-course-app-easy/node_modules/semver/functions/minor.js new file mode 100644 index 000000000..57b3455f8 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/minor.js @@ -0,0 +1,3 @@ +const SemVer = require('../classes/semver') +const minor = (a, loose) => new SemVer(a, loose).minor +module.exports = minor diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/neq.js b/week-3/02-course-app-easy/node_modules/semver/functions/neq.js new file mode 100644 index 000000000..f944c0157 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/neq.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const neq = (a, b, loose) => compare(a, b, loose) !== 0 +module.exports = neq diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/parse.js b/week-3/02-course-app-easy/node_modules/semver/functions/parse.js new file mode 100644 index 000000000..459b3b173 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/parse.js @@ -0,0 +1,16 @@ +const SemVer = require('../classes/semver') +const parse = (version, options, throwErrors = false) => { + if (version instanceof SemVer) { + return version + } + try { + return new SemVer(version, options) + } catch (er) { + if (!throwErrors) { + return null + } + throw er + } +} + +module.exports = parse diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/patch.js b/week-3/02-course-app-easy/node_modules/semver/functions/patch.js new file mode 100644 index 000000000..63afca252 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/patch.js @@ -0,0 +1,3 @@ +const SemVer = require('../classes/semver') +const patch = (a, loose) => new SemVer(a, loose).patch +module.exports = patch diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/prerelease.js b/week-3/02-course-app-easy/node_modules/semver/functions/prerelease.js new file mode 100644 index 000000000..06aa13248 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/prerelease.js @@ -0,0 +1,6 @@ +const parse = require('./parse') +const prerelease = (version, options) => { + const parsed = parse(version, options) + return (parsed && parsed.prerelease.length) ? parsed.prerelease : null +} +module.exports = prerelease diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/rcompare.js b/week-3/02-course-app-easy/node_modules/semver/functions/rcompare.js new file mode 100644 index 000000000..0ac509e79 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/rcompare.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const rcompare = (a, b, loose) => compare(b, a, loose) +module.exports = rcompare diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/rsort.js b/week-3/02-course-app-easy/node_modules/semver/functions/rsort.js new file mode 100644 index 000000000..82404c5cf --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/rsort.js @@ -0,0 +1,3 @@ +const compareBuild = require('./compare-build') +const rsort = (list, loose) => list.sort((a, b) => compareBuild(b, a, loose)) +module.exports = rsort diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/satisfies.js b/week-3/02-course-app-easy/node_modules/semver/functions/satisfies.js new file mode 100644 index 000000000..50af1c199 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/satisfies.js @@ -0,0 +1,10 @@ +const Range = require('../classes/range') +const satisfies = (version, range, options) => { + try { + range = new Range(range, options) + } catch (er) { + return false + } + return range.test(version) +} +module.exports = satisfies diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/sort.js b/week-3/02-course-app-easy/node_modules/semver/functions/sort.js new file mode 100644 index 000000000..4d10917ab --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/sort.js @@ -0,0 +1,3 @@ +const compareBuild = require('./compare-build') +const sort = (list, loose) => list.sort((a, b) => compareBuild(a, b, loose)) +module.exports = sort diff --git a/week-3/02-course-app-easy/node_modules/semver/functions/valid.js b/week-3/02-course-app-easy/node_modules/semver/functions/valid.js new file mode 100644 index 000000000..f27bae107 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/functions/valid.js @@ -0,0 +1,6 @@ +const parse = require('./parse') +const valid = (version, options) => { + const v = parse(version, options) + return v ? v.version : null +} +module.exports = valid diff --git a/week-3/02-course-app-easy/node_modules/semver/index.js b/week-3/02-course-app-easy/node_modules/semver/index.js new file mode 100644 index 000000000..86d42ac16 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/index.js @@ -0,0 +1,89 @@ +// just pre-load all the stuff that index.js lazily exports +const internalRe = require('./internal/re') +const constants = require('./internal/constants') +const SemVer = require('./classes/semver') +const identifiers = require('./internal/identifiers') +const parse = require('./functions/parse') +const valid = require('./functions/valid') +const clean = require('./functions/clean') +const inc = require('./functions/inc') +const diff = require('./functions/diff') +const major = require('./functions/major') +const minor = require('./functions/minor') +const patch = require('./functions/patch') +const prerelease = require('./functions/prerelease') +const compare = require('./functions/compare') +const rcompare = require('./functions/rcompare') +const compareLoose = require('./functions/compare-loose') +const compareBuild = require('./functions/compare-build') +const sort = require('./functions/sort') +const rsort = require('./functions/rsort') +const gt = require('./functions/gt') +const lt = require('./functions/lt') +const eq = require('./functions/eq') +const neq = require('./functions/neq') +const gte = require('./functions/gte') +const lte = require('./functions/lte') +const cmp = require('./functions/cmp') +const coerce = require('./functions/coerce') +const Comparator = require('./classes/comparator') +const Range = require('./classes/range') +const satisfies = require('./functions/satisfies') +const toComparators = require('./ranges/to-comparators') +const maxSatisfying = require('./ranges/max-satisfying') +const minSatisfying = require('./ranges/min-satisfying') +const minVersion = require('./ranges/min-version') +const validRange = require('./ranges/valid') +const outside = require('./ranges/outside') +const gtr = require('./ranges/gtr') +const ltr = require('./ranges/ltr') +const intersects = require('./ranges/intersects') +const simplifyRange = require('./ranges/simplify') +const subset = require('./ranges/subset') +module.exports = { + parse, + valid, + clean, + inc, + diff, + major, + minor, + patch, + prerelease, + compare, + rcompare, + compareLoose, + compareBuild, + sort, + rsort, + gt, + lt, + eq, + neq, + gte, + lte, + cmp, + coerce, + Comparator, + Range, + satisfies, + toComparators, + maxSatisfying, + minSatisfying, + minVersion, + validRange, + outside, + gtr, + ltr, + intersects, + simplifyRange, + subset, + SemVer, + re: internalRe.re, + src: internalRe.src, + tokens: internalRe.t, + SEMVER_SPEC_VERSION: constants.SEMVER_SPEC_VERSION, + RELEASE_TYPES: constants.RELEASE_TYPES, + compareIdentifiers: identifiers.compareIdentifiers, + rcompareIdentifiers: identifiers.rcompareIdentifiers, +} diff --git a/week-3/02-course-app-easy/node_modules/semver/internal/constants.js b/week-3/02-course-app-easy/node_modules/semver/internal/constants.js new file mode 100644 index 000000000..94be1c570 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/internal/constants.js @@ -0,0 +1,35 @@ +// Note: this is the semver.org version of the spec that it implements +// Not necessarily the package version of this code. +const SEMVER_SPEC_VERSION = '2.0.0' + +const MAX_LENGTH = 256 +const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || +/* istanbul ignore next */ 9007199254740991 + +// Max safe segment length for coercion. +const MAX_SAFE_COMPONENT_LENGTH = 16 + +// Max safe length for a build identifier. The max length minus 6 characters for +// the shortest version with a build 0.0.0+BUILD. +const MAX_SAFE_BUILD_LENGTH = MAX_LENGTH - 6 + +const RELEASE_TYPES = [ + 'major', + 'premajor', + 'minor', + 'preminor', + 'patch', + 'prepatch', + 'prerelease', +] + +module.exports = { + MAX_LENGTH, + MAX_SAFE_COMPONENT_LENGTH, + MAX_SAFE_BUILD_LENGTH, + MAX_SAFE_INTEGER, + RELEASE_TYPES, + SEMVER_SPEC_VERSION, + FLAG_INCLUDE_PRERELEASE: 0b001, + FLAG_LOOSE: 0b010, +} diff --git a/week-3/02-course-app-easy/node_modules/semver/internal/debug.js b/week-3/02-course-app-easy/node_modules/semver/internal/debug.js new file mode 100644 index 000000000..1c00e1369 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/internal/debug.js @@ -0,0 +1,9 @@ +const debug = ( + typeof process === 'object' && + process.env && + process.env.NODE_DEBUG && + /\bsemver\b/i.test(process.env.NODE_DEBUG) +) ? (...args) => console.error('SEMVER', ...args) + : () => {} + +module.exports = debug diff --git a/week-3/02-course-app-easy/node_modules/semver/internal/identifiers.js b/week-3/02-course-app-easy/node_modules/semver/internal/identifiers.js new file mode 100644 index 000000000..e612d0a3d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/internal/identifiers.js @@ -0,0 +1,23 @@ +const numeric = /^[0-9]+$/ +const compareIdentifiers = (a, b) => { + const anum = numeric.test(a) + const bnum = numeric.test(b) + + if (anum && bnum) { + a = +a + b = +b + } + + return a === b ? 0 + : (anum && !bnum) ? -1 + : (bnum && !anum) ? 1 + : a < b ? -1 + : 1 +} + +const rcompareIdentifiers = (a, b) => compareIdentifiers(b, a) + +module.exports = { + compareIdentifiers, + rcompareIdentifiers, +} diff --git a/week-3/02-course-app-easy/node_modules/semver/internal/lrucache.js b/week-3/02-course-app-easy/node_modules/semver/internal/lrucache.js new file mode 100644 index 000000000..6d89ec948 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/internal/lrucache.js @@ -0,0 +1,40 @@ +class LRUCache { + constructor () { + this.max = 1000 + this.map = new Map() + } + + get (key) { + const value = this.map.get(key) + if (value === undefined) { + return undefined + } else { + // Remove the key from the map and add it to the end + this.map.delete(key) + this.map.set(key, value) + return value + } + } + + delete (key) { + return this.map.delete(key) + } + + set (key, value) { + const deleted = this.delete(key) + + if (!deleted && value !== undefined) { + // If cache is full, delete the least recently used item + if (this.map.size >= this.max) { + const firstKey = this.map.keys().next().value + this.delete(firstKey) + } + + this.map.set(key, value) + } + + return this + } +} + +module.exports = LRUCache diff --git a/week-3/02-course-app-easy/node_modules/semver/internal/parse-options.js b/week-3/02-course-app-easy/node_modules/semver/internal/parse-options.js new file mode 100644 index 000000000..10d64ce06 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/internal/parse-options.js @@ -0,0 +1,15 @@ +// parse out just the options we care about +const looseOption = Object.freeze({ loose: true }) +const emptyOpts = Object.freeze({ }) +const parseOptions = options => { + if (!options) { + return emptyOpts + } + + if (typeof options !== 'object') { + return looseOption + } + + return options +} +module.exports = parseOptions diff --git a/week-3/02-course-app-easy/node_modules/semver/internal/re.js b/week-3/02-course-app-easy/node_modules/semver/internal/re.js new file mode 100644 index 000000000..fd8920e7b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/internal/re.js @@ -0,0 +1,217 @@ +const { + MAX_SAFE_COMPONENT_LENGTH, + MAX_SAFE_BUILD_LENGTH, + MAX_LENGTH, +} = require('./constants') +const debug = require('./debug') +exports = module.exports = {} + +// The actual regexps go on exports.re +const re = exports.re = [] +const safeRe = exports.safeRe = [] +const src = exports.src = [] +const t = exports.t = {} +let R = 0 + +const LETTERDASHNUMBER = '[a-zA-Z0-9-]' + +// Replace some greedy regex tokens to prevent regex dos issues. These regex are +// used internally via the safeRe object since all inputs in this library get +// normalized first to trim and collapse all extra whitespace. The original +// regexes are exported for userland consumption and lower level usage. A +// future breaking change could export the safer regex only with a note that +// all input should have extra whitespace removed. +const safeRegexReplacements = [ + ['\\s', 1], + ['\\d', MAX_LENGTH], + [LETTERDASHNUMBER, MAX_SAFE_BUILD_LENGTH], +] + +const makeSafeRegex = (value) => { + for (const [token, max] of safeRegexReplacements) { + value = value + .split(`${token}*`).join(`${token}{0,${max}}`) + .split(`${token}+`).join(`${token}{1,${max}}`) + } + return value +} + +const createToken = (name, value, isGlobal) => { + const safe = makeSafeRegex(value) + const index = R++ + debug(name, index, value) + t[name] = index + src[index] = value + re[index] = new RegExp(value, isGlobal ? 'g' : undefined) + safeRe[index] = new RegExp(safe, isGlobal ? 'g' : undefined) +} + +// The following Regular Expressions can be used for tokenizing, +// validating, and parsing SemVer version strings. + +// ## Numeric Identifier +// A single `0`, or a non-zero digit followed by zero or more digits. + +createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*') +createToken('NUMERICIDENTIFIERLOOSE', '\\d+') + +// ## Non-numeric Identifier +// Zero or more digits, followed by a letter or hyphen, and then zero or +// more letters, digits, or hyphens. + +createToken('NONNUMERICIDENTIFIER', `\\d*[a-zA-Z-]${LETTERDASHNUMBER}*`) + +// ## Main Version +// Three dot-separated numeric identifiers. + +createToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\.` + + `(${src[t.NUMERICIDENTIFIER]})\\.` + + `(${src[t.NUMERICIDENTIFIER]})`) + +createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` + + `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` + + `(${src[t.NUMERICIDENTIFIERLOOSE]})`) + +// ## Pre-release Version Identifier +// A numeric identifier, or a non-numeric identifier. + +createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NUMERICIDENTIFIER] +}|${src[t.NONNUMERICIDENTIFIER]})`) + +createToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NUMERICIDENTIFIERLOOSE] +}|${src[t.NONNUMERICIDENTIFIER]})`) + +// ## Pre-release Version +// Hyphen, followed by one or more dot-separated pre-release version +// identifiers. + +createToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER] +}(?:\\.${src[t.PRERELEASEIDENTIFIER]})*))`) + +createToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE] +}(?:\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`) + +// ## Build Metadata Identifier +// Any combination of digits, letters, or hyphens. + +createToken('BUILDIDENTIFIER', `${LETTERDASHNUMBER}+`) + +// ## Build Metadata +// Plus sign, followed by one or more period-separated build metadata +// identifiers. + +createToken('BUILD', `(?:\\+(${src[t.BUILDIDENTIFIER] +}(?:\\.${src[t.BUILDIDENTIFIER]})*))`) + +// ## Full Version String +// A main version, followed optionally by a pre-release version and +// build metadata. + +// Note that the only major, minor, patch, and pre-release sections of +// the version string are capturing groups. The build metadata is not a +// capturing group, because it should not ever be used in version +// comparison. + +createToken('FULLPLAIN', `v?${src[t.MAINVERSION] +}${src[t.PRERELEASE]}?${ + src[t.BUILD]}?`) + +createToken('FULL', `^${src[t.FULLPLAIN]}$`) + +// like full, but allows v1.2.3 and =1.2.3, which people do sometimes. +// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty +// common in the npm registry. +createToken('LOOSEPLAIN', `[v=\\s]*${src[t.MAINVERSIONLOOSE] +}${src[t.PRERELEASELOOSE]}?${ + src[t.BUILD]}?`) + +createToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`) + +createToken('GTLT', '((?:<|>)?=?)') + +// Something like "2.*" or "1.2.x". +// Note that "x.x" is a valid xRange identifer, meaning "any version" +// Only the first item is strictly required. +createToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\*`) +createToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\*`) + +createToken('XRANGEPLAIN', `[v=\\s]*(${src[t.XRANGEIDENTIFIER]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIER]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIER]})` + + `(?:${src[t.PRERELEASE]})?${ + src[t.BUILD]}?` + + `)?)?`) + +createToken('XRANGEPLAINLOOSE', `[v=\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` + + `(?:${src[t.PRERELEASELOOSE]})?${ + src[t.BUILD]}?` + + `)?)?`) + +createToken('XRANGE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAIN]}$`) +createToken('XRANGELOOSE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAINLOOSE]}$`) + +// Coercion. +// Extract anything that could conceivably be a part of a valid semver +createToken('COERCEPLAIN', `${'(^|[^\\d])' + + '(\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` + + `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` + + `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?`) +createToken('COERCE', `${src[t.COERCEPLAIN]}(?:$|[^\\d])`) +createToken('COERCEFULL', src[t.COERCEPLAIN] + + `(?:${src[t.PRERELEASE]})?` + + `(?:${src[t.BUILD]})?` + + `(?:$|[^\\d])`) +createToken('COERCERTL', src[t.COERCE], true) +createToken('COERCERTLFULL', src[t.COERCEFULL], true) + +// Tilde ranges. +// Meaning is "reasonably at or greater than" +createToken('LONETILDE', '(?:~>?)') + +createToken('TILDETRIM', `(\\s*)${src[t.LONETILDE]}\\s+`, true) +exports.tildeTrimReplace = '$1~' + +createToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`) +createToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`) + +// Caret ranges. +// Meaning is "at least and backwards compatible with" +createToken('LONECARET', '(?:\\^)') + +createToken('CARETTRIM', `(\\s*)${src[t.LONECARET]}\\s+`, true) +exports.caretTrimReplace = '$1^' + +createToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`) +createToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`) + +// A simple gt/lt/eq thing, or just "" to indicate "any version" +createToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\s*(${src[t.LOOSEPLAIN]})$|^$`) +createToken('COMPARATOR', `^${src[t.GTLT]}\\s*(${src[t.FULLPLAIN]})$|^$`) + +// An expression to strip any whitespace between the gtlt and the thing +// it modifies, so that `> 1.2.3` ==> `>1.2.3` +createToken('COMPARATORTRIM', `(\\s*)${src[t.GTLT] +}\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true) +exports.comparatorTrimReplace = '$1$2$3' + +// Something like `1.2.3 - 1.2.4` +// Note that these all use the loose form, because they'll be +// checked against either the strict or loose comparator form +// later. +createToken('HYPHENRANGE', `^\\s*(${src[t.XRANGEPLAIN]})` + + `\\s+-\\s+` + + `(${src[t.XRANGEPLAIN]})` + + `\\s*$`) + +createToken('HYPHENRANGELOOSE', `^\\s*(${src[t.XRANGEPLAINLOOSE]})` + + `\\s+-\\s+` + + `(${src[t.XRANGEPLAINLOOSE]})` + + `\\s*$`) + +// Star ranges basically just allow anything at all. +createToken('STAR', '(<|>)?=?\\s*\\*') +// >=0.0.0 is like a star +createToken('GTE0', '^\\s*>=\\s*0\\.0\\.0\\s*$') +createToken('GTE0PRE', '^\\s*>=\\s*0\\.0\\.0-0\\s*$') diff --git a/week-3/02-course-app-easy/node_modules/semver/package.json b/week-3/02-course-app-easy/node_modules/semver/package.json new file mode 100644 index 000000000..cb8def451 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/package.json @@ -0,0 +1,77 @@ +{ + "name": "semver", + "version": "7.6.2", + "description": "The semantic version parser used by npm.", + "main": "index.js", + "scripts": { + "test": "tap", + "snap": "tap", + "lint": "eslint \"**/*.{js,cjs,ts,mjs,jsx,tsx}\"", + "postlint": "template-oss-check", + "lintfix": "npm run lint -- --fix", + "posttest": "npm run lint", + "template-oss-apply": "template-oss-apply --force" + }, + "devDependencies": { + "@npmcli/eslint-config": "^4.0.0", + "@npmcli/template-oss": "4.22.0", + "benchmark": "^2.1.4", + "tap": "^16.0.0" + }, + "license": "ISC", + "repository": { + "type": "git", + "url": "git+https://github.com/npm/node-semver.git" + }, + "bin": { + "semver": "bin/semver.js" + }, + "files": [ + "bin/", + "lib/", + "classes/", + "functions/", + "internal/", + "ranges/", + "index.js", + "preload.js", + "range.bnf" + ], + "tap": { + "timeout": 30, + "coverage-map": "map.js", + "nyc-arg": [ + "--exclude", + "tap-snapshots/**" + ] + }, + "engines": { + "node": ">=10" + }, + "author": "GitHub Inc.", + "templateOSS": { + "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.", + "version": "4.22.0", + "engines": ">=10", + "distPaths": [ + "classes/", + "functions/", + "internal/", + "ranges/", + "index.js", + "preload.js", + "range.bnf" + ], + "allowPaths": [ + "/classes/", + "/functions/", + "/internal/", + "/ranges/", + "/index.js", + "/preload.js", + "/range.bnf", + "/benchmarks" + ], + "publish": "true" + } +} diff --git a/week-3/02-course-app-easy/node_modules/semver/preload.js b/week-3/02-course-app-easy/node_modules/semver/preload.js new file mode 100644 index 000000000..947cd4f79 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/preload.js @@ -0,0 +1,2 @@ +// XXX remove in v8 or beyond +module.exports = require('./index.js') diff --git a/week-3/02-course-app-easy/node_modules/semver/range.bnf b/week-3/02-course-app-easy/node_modules/semver/range.bnf new file mode 100644 index 000000000..d4c6ae0d7 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/range.bnf @@ -0,0 +1,16 @@ +range-set ::= range ( logical-or range ) * +logical-or ::= ( ' ' ) * '||' ( ' ' ) * +range ::= hyphen | simple ( ' ' simple ) * | '' +hyphen ::= partial ' - ' partial +simple ::= primitive | partial | tilde | caret +primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial +partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )? +xr ::= 'x' | 'X' | '*' | nr +nr ::= '0' | [1-9] ( [0-9] ) * +tilde ::= '~' partial +caret ::= '^' partial +qualifier ::= ( '-' pre )? ( '+' build )? +pre ::= parts +build ::= parts +parts ::= part ( '.' part ) * +part ::= nr | [-0-9A-Za-z]+ diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/gtr.js b/week-3/02-course-app-easy/node_modules/semver/ranges/gtr.js new file mode 100644 index 000000000..db7e35599 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/gtr.js @@ -0,0 +1,4 @@ +// Determine if version is greater than all the versions possible in the range. +const outside = require('./outside') +const gtr = (version, range, options) => outside(version, range, '>', options) +module.exports = gtr diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/intersects.js b/week-3/02-course-app-easy/node_modules/semver/ranges/intersects.js new file mode 100644 index 000000000..e0e9b7ce0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/intersects.js @@ -0,0 +1,7 @@ +const Range = require('../classes/range') +const intersects = (r1, r2, options) => { + r1 = new Range(r1, options) + r2 = new Range(r2, options) + return r1.intersects(r2, options) +} +module.exports = intersects diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/ltr.js b/week-3/02-course-app-easy/node_modules/semver/ranges/ltr.js new file mode 100644 index 000000000..528a885eb --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/ltr.js @@ -0,0 +1,4 @@ +const outside = require('./outside') +// Determine if version is less than all the versions possible in the range +const ltr = (version, range, options) => outside(version, range, '<', options) +module.exports = ltr diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/max-satisfying.js b/week-3/02-course-app-easy/node_modules/semver/ranges/max-satisfying.js new file mode 100644 index 000000000..6e3d993c6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/max-satisfying.js @@ -0,0 +1,25 @@ +const SemVer = require('../classes/semver') +const Range = require('../classes/range') + +const maxSatisfying = (versions, range, options) => { + let max = null + let maxSV = null + let rangeObj = null + try { + rangeObj = new Range(range, options) + } catch (er) { + return null + } + versions.forEach((v) => { + if (rangeObj.test(v)) { + // satisfies(v, range, options) + if (!max || maxSV.compare(v) === -1) { + // compare(max, v, true) + max = v + maxSV = new SemVer(max, options) + } + } + }) + return max +} +module.exports = maxSatisfying diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/min-satisfying.js b/week-3/02-course-app-easy/node_modules/semver/ranges/min-satisfying.js new file mode 100644 index 000000000..9b60974e2 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/min-satisfying.js @@ -0,0 +1,24 @@ +const SemVer = require('../classes/semver') +const Range = require('../classes/range') +const minSatisfying = (versions, range, options) => { + let min = null + let minSV = null + let rangeObj = null + try { + rangeObj = new Range(range, options) + } catch (er) { + return null + } + versions.forEach((v) => { + if (rangeObj.test(v)) { + // satisfies(v, range, options) + if (!min || minSV.compare(v) === 1) { + // compare(min, v, true) + min = v + minSV = new SemVer(min, options) + } + } + }) + return min +} +module.exports = minSatisfying diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/min-version.js b/week-3/02-course-app-easy/node_modules/semver/ranges/min-version.js new file mode 100644 index 000000000..350e1f783 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/min-version.js @@ -0,0 +1,61 @@ +const SemVer = require('../classes/semver') +const Range = require('../classes/range') +const gt = require('../functions/gt') + +const minVersion = (range, loose) => { + range = new Range(range, loose) + + let minver = new SemVer('0.0.0') + if (range.test(minver)) { + return minver + } + + minver = new SemVer('0.0.0-0') + if (range.test(minver)) { + return minver + } + + minver = null + for (let i = 0; i < range.set.length; ++i) { + const comparators = range.set[i] + + let setMin = null + comparators.forEach((comparator) => { + // Clone to avoid manipulating the comparator's semver object. + const compver = new SemVer(comparator.semver.version) + switch (comparator.operator) { + case '>': + if (compver.prerelease.length === 0) { + compver.patch++ + } else { + compver.prerelease.push(0) + } + compver.raw = compver.format() + /* fallthrough */ + case '': + case '>=': + if (!setMin || gt(compver, setMin)) { + setMin = compver + } + break + case '<': + case '<=': + /* Ignore maximum versions */ + break + /* istanbul ignore next */ + default: + throw new Error(`Unexpected operation: ${comparator.operator}`) + } + }) + if (setMin && (!minver || gt(minver, setMin))) { + minver = setMin + } + } + + if (minver && range.test(minver)) { + return minver + } + + return null +} +module.exports = minVersion diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/outside.js b/week-3/02-course-app-easy/node_modules/semver/ranges/outside.js new file mode 100644 index 000000000..ae99b10a5 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/outside.js @@ -0,0 +1,80 @@ +const SemVer = require('../classes/semver') +const Comparator = require('../classes/comparator') +const { ANY } = Comparator +const Range = require('../classes/range') +const satisfies = require('../functions/satisfies') +const gt = require('../functions/gt') +const lt = require('../functions/lt') +const lte = require('../functions/lte') +const gte = require('../functions/gte') + +const outside = (version, range, hilo, options) => { + version = new SemVer(version, options) + range = new Range(range, options) + + let gtfn, ltefn, ltfn, comp, ecomp + switch (hilo) { + case '>': + gtfn = gt + ltefn = lte + ltfn = lt + comp = '>' + ecomp = '>=' + break + case '<': + gtfn = lt + ltefn = gte + ltfn = gt + comp = '<' + ecomp = '<=' + break + default: + throw new TypeError('Must provide a hilo val of "<" or ">"') + } + + // If it satisfies the range it is not outside + if (satisfies(version, range, options)) { + return false + } + + // From now on, variable terms are as if we're in "gtr" mode. + // but note that everything is flipped for the "ltr" function. + + for (let i = 0; i < range.set.length; ++i) { + const comparators = range.set[i] + + let high = null + let low = null + + comparators.forEach((comparator) => { + if (comparator.semver === ANY) { + comparator = new Comparator('>=0.0.0') + } + high = high || comparator + low = low || comparator + if (gtfn(comparator.semver, high.semver, options)) { + high = comparator + } else if (ltfn(comparator.semver, low.semver, options)) { + low = comparator + } + }) + + // If the edge version comparator has a operator then our version + // isn't outside it + if (high.operator === comp || high.operator === ecomp) { + return false + } + + // If the lowest version comparator has an operator and our version + // is less than it then it isn't higher than the range + if ((!low.operator || low.operator === comp) && + ltefn(version, low.semver)) { + return false + } else if (low.operator === ecomp && ltfn(version, low.semver)) { + return false + } + } + return true +} + +module.exports = outside diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/simplify.js b/week-3/02-course-app-easy/node_modules/semver/ranges/simplify.js new file mode 100644 index 000000000..618d5b627 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/simplify.js @@ -0,0 +1,47 @@ +// given a set of versions and a range, create a "simplified" range +// that includes the same versions that the original range does +// If the original range is shorter than the simplified one, return that. +const satisfies = require('../functions/satisfies.js') +const compare = require('../functions/compare.js') +module.exports = (versions, range, options) => { + const set = [] + let first = null + let prev = null + const v = versions.sort((a, b) => compare(a, b, options)) + for (const version of v) { + const included = satisfies(version, range, options) + if (included) { + prev = version + if (!first) { + first = version + } + } else { + if (prev) { + set.push([first, prev]) + } + prev = null + first = null + } + } + if (first) { + set.push([first, null]) + } + + const ranges = [] + for (const [min, max] of set) { + if (min === max) { + ranges.push(min) + } else if (!max && min === v[0]) { + ranges.push('*') + } else if (!max) { + ranges.push(`>=${min}`) + } else if (min === v[0]) { + ranges.push(`<=${max}`) + } else { + ranges.push(`${min} - ${max}`) + } + } + const simplified = ranges.join(' || ') + const original = typeof range.raw === 'string' ? range.raw : String(range) + return simplified.length < original.length ? simplified : range +} diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/subset.js b/week-3/02-course-app-easy/node_modules/semver/ranges/subset.js new file mode 100644 index 000000000..1e5c26837 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/subset.js @@ -0,0 +1,247 @@ +const Range = require('../classes/range.js') +const Comparator = require('../classes/comparator.js') +const { ANY } = Comparator +const satisfies = require('../functions/satisfies.js') +const compare = require('../functions/compare.js') + +// Complex range `r1 || r2 || ...` is a subset of `R1 || R2 || ...` iff: +// - Every simple range `r1, r2, ...` is a null set, OR +// - Every simple range `r1, r2, ...` which is not a null set is a subset of +// some `R1, R2, ...` +// +// Simple range `c1 c2 ...` is a subset of simple range `C1 C2 ...` iff: +// - If c is only the ANY comparator +// - If C is only the ANY comparator, return true +// - Else if in prerelease mode, return false +// - else replace c with `[>=0.0.0]` +// - If C is only the ANY comparator +// - if in prerelease mode, return true +// - else replace C with `[>=0.0.0]` +// - Let EQ be the set of = comparators in c +// - If EQ is more than one, return true (null set) +// - Let GT be the highest > or >= comparator in c +// - Let LT be the lowest < or <= comparator in c +// - If GT and LT, and GT.semver > LT.semver, return true (null set) +// - If any C is a = range, and GT or LT are set, return false +// - If EQ +// - If GT, and EQ does not satisfy GT, return true (null set) +// - If LT, and EQ does not satisfy LT, return true (null set) +// - If EQ satisfies every C, return true +// - Else return false +// - If GT +// - If GT.semver is lower than any > or >= comp in C, return false +// - If GT is >=, and GT.semver does not satisfy every C, return false +// - If GT.semver has a prerelease, and not in prerelease mode +// - If no C has a prerelease and the GT.semver tuple, return false +// - If LT +// - If LT.semver is greater than any < or <= comp in C, return false +// - If LT is <=, and LT.semver does not satisfy every C, return false +// - If GT.semver has a prerelease, and not in prerelease mode +// - If no C has a prerelease and the LT.semver tuple, return false +// - Else return true + +const subset = (sub, dom, options = {}) => { + if (sub === dom) { + return true + } + + sub = new Range(sub, options) + dom = new Range(dom, options) + let sawNonNull = false + + OUTER: for (const simpleSub of sub.set) { + for (const simpleDom of dom.set) { + const isSub = simpleSubset(simpleSub, simpleDom, options) + sawNonNull = sawNonNull || isSub !== null + if (isSub) { + continue OUTER + } + } + // the null set is a subset of everything, but null simple ranges in + // a complex range should be ignored. so if we saw a non-null range, + // then we know this isn't a subset, but if EVERY simple range was null, + // then it is a subset. + if (sawNonNull) { + return false + } + } + return true +} + +const minimumVersionWithPreRelease = [new Comparator('>=0.0.0-0')] +const minimumVersion = [new Comparator('>=0.0.0')] + +const simpleSubset = (sub, dom, options) => { + if (sub === dom) { + return true + } + + if (sub.length === 1 && sub[0].semver === ANY) { + if (dom.length === 1 && dom[0].semver === ANY) { + return true + } else if (options.includePrerelease) { + sub = minimumVersionWithPreRelease + } else { + sub = minimumVersion + } + } + + if (dom.length === 1 && dom[0].semver === ANY) { + if (options.includePrerelease) { + return true + } else { + dom = minimumVersion + } + } + + const eqSet = new Set() + let gt, lt + for (const c of sub) { + if (c.operator === '>' || c.operator === '>=') { + gt = higherGT(gt, c, options) + } else if (c.operator === '<' || c.operator === '<=') { + lt = lowerLT(lt, c, options) + } else { + eqSet.add(c.semver) + } + } + + if (eqSet.size > 1) { + return null + } + + let gtltComp + if (gt && lt) { + gtltComp = compare(gt.semver, lt.semver, options) + if (gtltComp > 0) { + return null + } else if (gtltComp === 0 && (gt.operator !== '>=' || lt.operator !== '<=')) { + return null + } + } + + // will iterate one or zero times + for (const eq of eqSet) { + if (gt && !satisfies(eq, String(gt), options)) { + return null + } + + if (lt && !satisfies(eq, String(lt), options)) { + return null + } + + for (const c of dom) { + if (!satisfies(eq, String(c), options)) { + return false + } + } + + return true + } + + let higher, lower + let hasDomLT, hasDomGT + // if the subset has a prerelease, we need a comparator in the superset + // with the same tuple and a prerelease, or it's not a subset + let needDomLTPre = lt && + !options.includePrerelease && + lt.semver.prerelease.length ? lt.semver : false + let needDomGTPre = gt && + !options.includePrerelease && + gt.semver.prerelease.length ? gt.semver : false + // exception: <1.2.3-0 is the same as <1.2.3 + if (needDomLTPre && needDomLTPre.prerelease.length === 1 && + lt.operator === '<' && needDomLTPre.prerelease[0] === 0) { + needDomLTPre = false + } + + for (const c of dom) { + hasDomGT = hasDomGT || c.operator === '>' || c.operator === '>=' + hasDomLT = hasDomLT || c.operator === '<' || c.operator === '<=' + if (gt) { + if (needDomGTPre) { + if (c.semver.prerelease && c.semver.prerelease.length && + c.semver.major === needDomGTPre.major && + c.semver.minor === needDomGTPre.minor && + c.semver.patch === needDomGTPre.patch) { + needDomGTPre = false + } + } + if (c.operator === '>' || c.operator === '>=') { + higher = higherGT(gt, c, options) + if (higher === c && higher !== gt) { + return false + } + } else if (gt.operator === '>=' && !satisfies(gt.semver, String(c), options)) { + return false + } + } + if (lt) { + if (needDomLTPre) { + if (c.semver.prerelease && c.semver.prerelease.length && + c.semver.major === needDomLTPre.major && + c.semver.minor === needDomLTPre.minor && + c.semver.patch === needDomLTPre.patch) { + needDomLTPre = false + } + } + if (c.operator === '<' || c.operator === '<=') { + lower = lowerLT(lt, c, options) + if (lower === c && lower !== lt) { + return false + } + } else if (lt.operator === '<=' && !satisfies(lt.semver, String(c), options)) { + return false + } + } + if (!c.operator && (lt || gt) && gtltComp !== 0) { + return false + } + } + + // if there was a < or >, and nothing in the dom, then must be false + // UNLESS it was limited by another range in the other direction. + // Eg, >1.0.0 <1.0.1 is still a subset of <2.0.0 + if (gt && hasDomLT && !lt && gtltComp !== 0) { + return false + } + + if (lt && hasDomGT && !gt && gtltComp !== 0) { + return false + } + + // we needed a prerelease range in a specific tuple, but didn't get one + // then this isn't a subset. eg >=1.2.3-pre is not a subset of >=1.0.0, + // because it includes prereleases in the 1.2.3 tuple + if (needDomGTPre || needDomLTPre) { + return false + } + + return true +} + +// >=1.2.3 is lower than >1.2.3 +const higherGT = (a, b, options) => { + if (!a) { + return b + } + const comp = compare(a.semver, b.semver, options) + return comp > 0 ? a + : comp < 0 ? b + : b.operator === '>' && a.operator === '>=' ? b + : a +} + +// <=1.2.3 is higher than <1.2.3 +const lowerLT = (a, b, options) => { + if (!a) { + return b + } + const comp = compare(a.semver, b.semver, options) + return comp < 0 ? a + : comp > 0 ? b + : b.operator === '<' && a.operator === '<=' ? b + : a +} + +module.exports = subset diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/to-comparators.js b/week-3/02-course-app-easy/node_modules/semver/ranges/to-comparators.js new file mode 100644 index 000000000..6c8bc7e6f --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/to-comparators.js @@ -0,0 +1,8 @@ +const Range = require('../classes/range') + +// Mostly just for testing and legacy API reasons +const toComparators = (range, options) => + new Range(range, options).set + .map(comp => comp.map(c => c.value).join(' ').trim().split(' ')) + +module.exports = toComparators diff --git a/week-3/02-course-app-easy/node_modules/semver/ranges/valid.js b/week-3/02-course-app-easy/node_modules/semver/ranges/valid.js new file mode 100644 index 000000000..365f35689 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/semver/ranges/valid.js @@ -0,0 +1,11 @@ +const Range = require('../classes/range') +const validRange = (range, options) => { + try { + // Return '*' instead of '' so that truthiness works. + // This will throw if it's invalid anyway + return new Range(range, options).range || '*' + } catch (er) { + return null + } +} +module.exports = validRange diff --git a/week-3/02-course-app-easy/node_modules/uuid/CHANGELOG.md b/week-3/02-course-app-easy/node_modules/uuid/CHANGELOG.md new file mode 100644 index 000000000..f0ba9e1ba --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/CHANGELOG.md @@ -0,0 +1,292 @@ +# Changelog + +All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines. + +## [10.0.0](https://github.com/uuidjs/uuid/compare/v9.0.0...v10.0.0) (2024-06-07) + +### ⚠ BREAKING CHANGES + +- update node support (drop node@12, node@14, add node@20) (#750) + +### Features + +- support support rfc9562 MAX uuid (new in RFC9562) ([#714](https://github.com/uuidjs/uuid/issues/714)) ([0385cd3](https://github.com/uuidjs/uuid/commit/0385cd3f18ae9920678b2849932fa7a9d9aee7d0)) +- support rfc9562 v6 uuids ([#754](https://github.com/uuidjs/uuid/issues/754)) ([c4ed13e](https://github.com/uuidjs/uuid/commit/c4ed13e7159d87c9e42a349bdd9dc955f1af46b6)) +- support rfc9562 v7 uuids ([#681](https://github.com/uuidjs/uuid/issues/681)) ([db76a12](https://github.com/uuidjs/uuid/commit/db76a1284760c441438f50a57924b322dae08891)) +- update node support matrix (only support node 16-20) ([#750](https://github.com/uuidjs/uuid/issues/750)) ([883b163](https://github.com/uuidjs/uuid/commit/883b163b9ab9d6655bfbd8a35e61a3c71674dfe1)) +- support rfc9562 v8 uuids ([#759](https://github.com/uuidjs/uuid/issues/759)) ([35a5342](https://github.com/uuidjs/uuid/commit/35a53428202657e402e6b4aa68f56c08194541bf)) + +### Bug Fixes + +- revert "perf: remove superfluous call to toLowerCase ([#677](https://github.com/uuidjs/uuid/issues/677))" ([#738](https://github.com/uuidjs/uuid/issues/738)) ([e267b90](https://github.com/uuidjs/uuid/commit/e267b9073df1d0ce119ee53c0487fe76acb2be37)) + +## [9.0.1](https://github.com/uuidjs/uuid/compare/v9.0.0...v9.0.1) (2023-09-12) + +### build + +- Fix CI to work with Node.js 20.x + +## [9.0.0](https://github.com/uuidjs/uuid/compare/v8.3.2...v9.0.0) (2022-09-05) + +### ⚠ BREAKING CHANGES + +- Drop Node.js 10.x support. This library always aims at supporting one EOLed LTS release which by this time now is 12.x which has reached EOL 30 Apr 2022. + +- Remove the minified UMD build from the package. + + Minified code is hard to audit and since this is a widely used library it seems more appropriate nowadays to optimize for auditability than to ship a legacy module format that, at best, serves educational purposes nowadays. + + For production browser use cases, users should be using a bundler. For educational purposes, today's online sandboxes like replit.com offer convenient ways to load npm modules, so the use case for UMD through repos like UNPKG or jsDelivr has largely vanished. + +- Drop IE 11 and Safari 10 support. Drop support for browsers that don't correctly implement const/let and default arguments, and no longer transpile the browser build to ES2015. + + This also removes the fallback on msCrypto instead of the crypto API. + + Browser tests are run in the first supported version of each supported browser and in the latest (as of this commit) version available on Browserstack. + +### Features + +- optimize uuid.v1 by 1.3x uuid.v4 by 4.3x (430%) ([#597](https://github.com/uuidjs/uuid/issues/597)) ([3a033f6](https://github.com/uuidjs/uuid/commit/3a033f6bab6bb3780ece6d645b902548043280bc)) +- remove UMD build ([#645](https://github.com/uuidjs/uuid/issues/645)) ([e948a0f](https://github.com/uuidjs/uuid/commit/e948a0f22bf22f4619b27bd913885e478e20fe6f)), closes [#620](https://github.com/uuidjs/uuid/issues/620) +- use native crypto.randomUUID when available ([#600](https://github.com/uuidjs/uuid/issues/600)) ([c9e076c](https://github.com/uuidjs/uuid/commit/c9e076c852edad7e9a06baaa1d148cf4eda6c6c4)) + +### Bug Fixes + +- add Jest/jsdom compatibility ([#642](https://github.com/uuidjs/uuid/issues/642)) ([16f9c46](https://github.com/uuidjs/uuid/commit/16f9c469edf46f0786164cdf4dc980743984a6fd)) +- change default export to named function ([#545](https://github.com/uuidjs/uuid/issues/545)) ([c57bc5a](https://github.com/uuidjs/uuid/commit/c57bc5a9a0653273aa639cda9177ce52efabe42a)) +- handle error when parameter is not set in v3 and v5 ([#622](https://github.com/uuidjs/uuid/issues/622)) ([fcd7388](https://github.com/uuidjs/uuid/commit/fcd73881692d9fabb63872576ba28e30ff852091)) +- run npm audit fix ([#644](https://github.com/uuidjs/uuid/issues/644)) ([04686f5](https://github.com/uuidjs/uuid/commit/04686f54c5fed2cfffc1b619f4970c4bb8532353)) +- upgrading from uuid3 broken link ([#568](https://github.com/uuidjs/uuid/issues/568)) ([1c849da](https://github.com/uuidjs/uuid/commit/1c849da6e164259e72e18636726345b13a7eddd6)) + +### build + +- drop Node.js 8.x from babel transpile target ([#603](https://github.com/uuidjs/uuid/issues/603)) ([aa11485](https://github.com/uuidjs/uuid/commit/aa114858260402107ec8a1e1a825dea0a259bcb5)) +- drop support for legacy browsers (IE11, Safari 10) ([#604](https://github.com/uuidjs/uuid/issues/604)) ([0f433e5](https://github.com/uuidjs/uuid/commit/0f433e5ec444edacd53016de67db021102f36148)) + +- drop node 10.x to upgrade dev dependencies ([#653](https://github.com/uuidjs/uuid/issues/653)) ([28a5712](https://github.com/uuidjs/uuid/commit/28a571283f8abda6b9d85e689f95b7d3ee9e282e)), closes [#643](https://github.com/uuidjs/uuid/issues/643) + +### [8.3.2](https://github.com/uuidjs/uuid/compare/v8.3.1...v8.3.2) (2020-12-08) + +### Bug Fixes + +- lazy load getRandomValues ([#537](https://github.com/uuidjs/uuid/issues/537)) ([16c8f6d](https://github.com/uuidjs/uuid/commit/16c8f6df2f6b09b4d6235602d6a591188320a82e)), closes [#536](https://github.com/uuidjs/uuid/issues/536) + +### [8.3.1](https://github.com/uuidjs/uuid/compare/v8.3.0...v8.3.1) (2020-10-04) + +### Bug Fixes + +- support expo>=39.0.0 ([#515](https://github.com/uuidjs/uuid/issues/515)) ([c65a0f3](https://github.com/uuidjs/uuid/commit/c65a0f3fa73b901959d638d1e3591dfacdbed867)), closes [#375](https://github.com/uuidjs/uuid/issues/375) + +## [8.3.0](https://github.com/uuidjs/uuid/compare/v8.2.0...v8.3.0) (2020-07-27) + +### Features + +- add parse/stringify/validate/version/NIL APIs ([#479](https://github.com/uuidjs/uuid/issues/479)) ([0e6c10b](https://github.com/uuidjs/uuid/commit/0e6c10ba1bf9517796ff23c052fc0468eedfd5f4)), closes [#475](https://github.com/uuidjs/uuid/issues/475) [#478](https://github.com/uuidjs/uuid/issues/478) [#480](https://github.com/uuidjs/uuid/issues/480) [#481](https://github.com/uuidjs/uuid/issues/481) [#180](https://github.com/uuidjs/uuid/issues/180) + +## [8.2.0](https://github.com/uuidjs/uuid/compare/v8.1.0...v8.2.0) (2020-06-23) + +### Features + +- improve performance of v1 string representation ([#453](https://github.com/uuidjs/uuid/issues/453)) ([0ee0b67](https://github.com/uuidjs/uuid/commit/0ee0b67c37846529c66089880414d29f3ae132d5)) +- remove deprecated v4 string parameter ([#454](https://github.com/uuidjs/uuid/issues/454)) ([88ce3ca](https://github.com/uuidjs/uuid/commit/88ce3ca0ba046f60856de62c7ce03f7ba98ba46c)), closes [#437](https://github.com/uuidjs/uuid/issues/437) +- support jspm ([#473](https://github.com/uuidjs/uuid/issues/473)) ([e9f2587](https://github.com/uuidjs/uuid/commit/e9f2587a92575cac31bc1d4ae944e17c09756659)) + +### Bug Fixes + +- prepare package exports for webpack 5 ([#468](https://github.com/uuidjs/uuid/issues/468)) ([8d6e6a5](https://github.com/uuidjs/uuid/commit/8d6e6a5f8965ca9575eb4d92e99a43435f4a58a8)) + +## [8.1.0](https://github.com/uuidjs/uuid/compare/v8.0.0...v8.1.0) (2020-05-20) + +### Features + +- improve v4 performance by reusing random number array ([#435](https://github.com/uuidjs/uuid/issues/435)) ([bf4af0d](https://github.com/uuidjs/uuid/commit/bf4af0d711b4d2ed03d1f74fd12ad0baa87dc79d)) +- optimize V8 performance of bytesToUuid ([#434](https://github.com/uuidjs/uuid/issues/434)) ([e156415](https://github.com/uuidjs/uuid/commit/e156415448ec1af2351fa0b6660cfb22581971f2)) + +### Bug Fixes + +- export package.json required by react-native and bundlers ([#449](https://github.com/uuidjs/uuid/issues/449)) ([be1c8fe](https://github.com/uuidjs/uuid/commit/be1c8fe9a3206c358e0059b52fafd7213aa48a52)), closes [ai/nanoevents#44](https://github.com/ai/nanoevents/issues/44#issuecomment-602010343) [#444](https://github.com/uuidjs/uuid/issues/444) + +## [8.0.0](https://github.com/uuidjs/uuid/compare/v7.0.3...v8.0.0) (2020-04-29) + +### ⚠ BREAKING CHANGES + +- For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export. + + ```diff + -import uuid from 'uuid'; + -console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869' + +import { v4 as uuidv4 } from 'uuid'; + +uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d' + ``` + +- Deep requiring specific algorithms of this library like `require('uuid/v4')`, which has been deprecated in `uuid@7`, is no longer supported. + + Instead use the named exports that this module exports. + + For ECMAScript Modules (ESM): + + ```diff + -import uuidv4 from 'uuid/v4'; + +import { v4 as uuidv4 } from 'uuid'; + uuidv4(); + ``` + + For CommonJS: + + ```diff + -const uuidv4 = require('uuid/v4'); + +const { v4: uuidv4 } = require('uuid'); + uuidv4(); + ``` + +### Features + +- native Node.js ES Modules (wrapper approach) ([#423](https://github.com/uuidjs/uuid/issues/423)) ([2d9f590](https://github.com/uuidjs/uuid/commit/2d9f590ad9701d692625c07ed62f0a0f91227991)), closes [#245](https://github.com/uuidjs/uuid/issues/245) [#419](https://github.com/uuidjs/uuid/issues/419) [#342](https://github.com/uuidjs/uuid/issues/342) +- remove deep requires ([#426](https://github.com/uuidjs/uuid/issues/426)) ([daf72b8](https://github.com/uuidjs/uuid/commit/daf72b84ceb20272a81bb5fbddb05dd95922cbba)) + +### Bug Fixes + +- add CommonJS syntax example to README quickstart section ([#417](https://github.com/uuidjs/uuid/issues/417)) ([e0ec840](https://github.com/uuidjs/uuid/commit/e0ec8402c7ad44b7ef0453036c612f5db513fda0)) + +### [7.0.3](https://github.com/uuidjs/uuid/compare/v7.0.2...v7.0.3) (2020-03-31) + +### Bug Fixes + +- make deep require deprecation warning work in browsers ([#409](https://github.com/uuidjs/uuid/issues/409)) ([4b71107](https://github.com/uuidjs/uuid/commit/4b71107d8c0d2ef56861ede6403fc9dc35a1e6bf)), closes [#408](https://github.com/uuidjs/uuid/issues/408) + +### [7.0.2](https://github.com/uuidjs/uuid/compare/v7.0.1...v7.0.2) (2020-03-04) + +### Bug Fixes + +- make access to msCrypto consistent ([#393](https://github.com/uuidjs/uuid/issues/393)) ([8bf2a20](https://github.com/uuidjs/uuid/commit/8bf2a20f3565df743da7215eebdbada9d2df118c)) +- simplify link in deprecation warning ([#391](https://github.com/uuidjs/uuid/issues/391)) ([bb2c8e4](https://github.com/uuidjs/uuid/commit/bb2c8e4e9f4c5f9c1eaaf3ea59710c633cd90cb7)) +- update links to match content in readme ([#386](https://github.com/uuidjs/uuid/issues/386)) ([44f2f86](https://github.com/uuidjs/uuid/commit/44f2f86e9d2bbf14ee5f0f00f72a3db1292666d4)) + +### [7.0.1](https://github.com/uuidjs/uuid/compare/v7.0.0...v7.0.1) (2020-02-25) + +### Bug Fixes + +- clean up esm builds for node and browser ([#383](https://github.com/uuidjs/uuid/issues/383)) ([59e6a49](https://github.com/uuidjs/uuid/commit/59e6a49e7ce7b3e8fb0f3ee52b9daae72af467dc)) +- provide browser versions independent from module system ([#380](https://github.com/uuidjs/uuid/issues/380)) ([4344a22](https://github.com/uuidjs/uuid/commit/4344a22e7aed33be8627eeaaf05360f256a21753)), closes [#378](https://github.com/uuidjs/uuid/issues/378) + +## [7.0.0](https://github.com/uuidjs/uuid/compare/v3.4.0...v7.0.0) (2020-02-24) + +### ⚠ BREAKING CHANGES + +- The default export, which used to be the v4() method but which was already discouraged in v3.x of this library, has been removed. +- Explicitly note that deep imports of the different uuid version functions are deprecated and no longer encouraged and that ECMAScript module named imports should be used instead. Emit a deprecation warning for people who deep-require the different algorithm variants. +- Remove builtin support for insecure random number generators in the browser. Users who want that will have to supply their own random number generator function. +- Remove support for generating v3 and v5 UUIDs in Node.js<4.x +- Convert code base to ECMAScript Modules (ESM) and release CommonJS build for node and ESM build for browser bundlers. + +### Features + +- add UMD build to npm package ([#357](https://github.com/uuidjs/uuid/issues/357)) ([4e75adf](https://github.com/uuidjs/uuid/commit/4e75adf435196f28e3fbbe0185d654b5ded7ca2c)), closes [#345](https://github.com/uuidjs/uuid/issues/345) +- add various es module and CommonJS examples ([b238510](https://github.com/uuidjs/uuid/commit/b238510bf352463521f74bab175a3af9b7a42555)) +- ensure that docs are up-to-date in CI ([ee5e77d](https://github.com/uuidjs/uuid/commit/ee5e77db547474f5a8f23d6c857a6d399209986b)) +- hybrid CommonJS & ECMAScript modules build ([a3f078f](https://github.com/uuidjs/uuid/commit/a3f078faa0baff69ab41aed08e041f8f9c8993d0)) +- remove insecure fallback random number generator ([3a5842b](https://github.com/uuidjs/uuid/commit/3a5842b141a6e5de0ae338f391661e6b84b167c9)), closes [#173](https://github.com/uuidjs/uuid/issues/173) +- remove support for pre Node.js v4 Buffer API ([#356](https://github.com/uuidjs/uuid/issues/356)) ([b59b5c5](https://github.com/uuidjs/uuid/commit/b59b5c5ecad271c5453f1a156f011671f6d35627)) +- rename repository to github:uuidjs/uuid ([#351](https://github.com/uuidjs/uuid/issues/351)) ([c37a518](https://github.com/uuidjs/uuid/commit/c37a518e367ac4b6d0aa62dba1bc6ce9e85020f7)), closes [#338](https://github.com/uuidjs/uuid/issues/338) + +### Bug Fixes + +- add deep-require proxies for local testing and adjust tests ([#365](https://github.com/uuidjs/uuid/issues/365)) ([7fedc79](https://github.com/uuidjs/uuid/commit/7fedc79ac8fda4bfd1c566c7f05ef4ac13b2db48)) +- add note about removal of default export ([#372](https://github.com/uuidjs/uuid/issues/372)) ([12749b7](https://github.com/uuidjs/uuid/commit/12749b700eb49db8a9759fd306d8be05dbfbd58c)), closes [#370](https://github.com/uuidjs/uuid/issues/370) +- deprecated deep requiring of the different algorithm versions ([#361](https://github.com/uuidjs/uuid/issues/361)) ([c0bdf15](https://github.com/uuidjs/uuid/commit/c0bdf15e417639b1aeb0b247b2fb11f7a0a26b23)) + +## [3.4.0](https://github.com/uuidjs/uuid/compare/v3.3.3...v3.4.0) (2020-01-16) + +### Features + +- rename repository to github:uuidjs/uuid ([#351](https://github.com/uuidjs/uuid/issues/351)) ([e2d7314](https://github.com/uuidjs/uuid/commit/e2d7314)), closes [#338](https://github.com/uuidjs/uuid/issues/338) + +## [3.3.3](https://github.com/uuidjs/uuid/compare/v3.3.2...v3.3.3) (2019-08-19) + +### Bug Fixes + +- no longer run ci tests on node v4 +- upgrade dependencies + +## [3.3.2](https://github.com/uuidjs/uuid/compare/v3.3.1...v3.3.2) (2018-06-28) + +### Bug Fixes + +- typo ([305d877](https://github.com/uuidjs/uuid/commit/305d877)) + +## [3.3.1](https://github.com/uuidjs/uuid/compare/v3.3.0...v3.3.1) (2018-06-28) + +### Bug Fixes + +- fix [#284](https://github.com/uuidjs/uuid/issues/284) by setting function name in try-catch ([f2a60f2](https://github.com/uuidjs/uuid/commit/f2a60f2)) + +# [3.3.0](https://github.com/uuidjs/uuid/compare/v3.2.1...v3.3.0) (2018-06-22) + +### Bug Fixes + +- assignment to readonly property to allow running in strict mode ([#270](https://github.com/uuidjs/uuid/issues/270)) ([d062fdc](https://github.com/uuidjs/uuid/commit/d062fdc)) +- fix [#229](https://github.com/uuidjs/uuid/issues/229) ([c9684d4](https://github.com/uuidjs/uuid/commit/c9684d4)) +- Get correct version of IE11 crypto ([#274](https://github.com/uuidjs/uuid/issues/274)) ([153d331](https://github.com/uuidjs/uuid/commit/153d331)) +- mem issue when generating uuid ([#267](https://github.com/uuidjs/uuid/issues/267)) ([c47702c](https://github.com/uuidjs/uuid/commit/c47702c)) + +### Features + +- enforce Conventional Commit style commit messages ([#282](https://github.com/uuidjs/uuid/issues/282)) ([cc9a182](https://github.com/uuidjs/uuid/commit/cc9a182)) + +## [3.2.1](https://github.com/uuidjs/uuid/compare/v3.2.0...v3.2.1) (2018-01-16) + +### Bug Fixes + +- use msCrypto if available. Fixes [#241](https://github.com/uuidjs/uuid/issues/241) ([#247](https://github.com/uuidjs/uuid/issues/247)) ([1fef18b](https://github.com/uuidjs/uuid/commit/1fef18b)) + +# [3.2.0](https://github.com/uuidjs/uuid/compare/v3.1.0...v3.2.0) (2018-01-16) + +### Bug Fixes + +- remove mistakenly added typescript dependency, rollback version (standard-version will auto-increment) ([09fa824](https://github.com/uuidjs/uuid/commit/09fa824)) +- use msCrypto if available. Fixes [#241](https://github.com/uuidjs/uuid/issues/241) ([#247](https://github.com/uuidjs/uuid/issues/247)) ([1fef18b](https://github.com/uuidjs/uuid/commit/1fef18b)) + +### Features + +- Add v3 Support ([#217](https://github.com/uuidjs/uuid/issues/217)) ([d94f726](https://github.com/uuidjs/uuid/commit/d94f726)) + +# [3.1.0](https://github.com/uuidjs/uuid/compare/v3.1.0...v3.0.1) (2017-06-17) + +### Bug Fixes + +- (fix) Add .npmignore file to exclude test/ and other non-essential files from packing. (#183) +- Fix typo (#178) +- Simple typo fix (#165) + +### Features + +- v5 support in CLI (#197) +- V5 support (#188) + +# 3.0.1 (2016-11-28) + +- split uuid versions into separate files + +# 3.0.0 (2016-11-17) + +- remove .parse and .unparse + +# 2.0.0 + +- Removed uuid.BufferClass + +# 1.4.0 + +- Improved module context detection +- Removed public RNG functions + +# 1.3.2 + +- Improve tests and handling of v1() options (Issue #24) +- Expose RNG option to allow for perf testing with different generators + +# 1.3.0 + +- Support for version 1 ids, thanks to [@ctavan](https://github.com/ctavan)! +- Support for node.js crypto API +- De-emphasizing performance in favor of a) cryptographic quality PRNGs where available and b) more manageable code diff --git a/week-3/02-course-app-easy/node_modules/uuid/CONTRIBUTING.md b/week-3/02-course-app-easy/node_modules/uuid/CONTRIBUTING.md new file mode 100644 index 000000000..4a4503d02 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/CONTRIBUTING.md @@ -0,0 +1,18 @@ +# Contributing + +Please feel free to file GitHub Issues or propose Pull Requests. We're always happy to discuss improvements to this library! + +## Testing + +```shell +npm test +``` + +## Releasing + +Releases are supposed to be done from master, version bumping is automated through [`standard-version`](https://github.com/conventional-changelog/standard-version): + +```shell +npm run release -- --dry-run # verify output manually +npm run release # follow the instructions from the output of this command +``` diff --git a/week-3/02-course-app-easy/node_modules/uuid/LICENSE.md b/week-3/02-course-app-easy/node_modules/uuid/LICENSE.md new file mode 100644 index 000000000..393416836 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/LICENSE.md @@ -0,0 +1,9 @@ +The MIT License (MIT) + +Copyright (c) 2010-2020 Robert Kieffer and other contributors + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/02-course-app-easy/node_modules/uuid/README.md b/week-3/02-course-app-easy/node_modules/uuid/README.md new file mode 100644 index 000000000..b9079b699 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/README.md @@ -0,0 +1,584 @@ + + + +# uuid [![CI](https://github.com/uuidjs/uuid/workflows/CI/badge.svg)](https://github.com/uuidjs/uuid/actions?query=workflow%3ACI) [![Browser](https://github.com/uuidjs/uuid/workflows/Browser/badge.svg)](https://github.com/uuidjs/uuid/actions?query=workflow%3ABrowser) + +For the creation of [RFC9562](https://www.rfc-editor.org/rfc/rfc9562.html) (formally [RFC4122](https://www.rfc-editor.org/rfc/rfc4122.html)) UUIDs + +- **Complete** - Support for all RFC9562 (nee RFC4122) UUID versions +- **Cross-platform** - Support for ... + - CommonJS, [ECMAScript Modules](#ecmascript-modules) and [CDN builds](#cdn-builds) + - NodeJS 16+ ([LTS releases](https://github.com/nodejs/Release)) + - Chrome, Safari, Firefox, Edge browsers + - Webpack and rollup.js module bundlers + - [React Native / Expo](#react-native--expo) +- **Secure** - Cryptographically-strong random values +- **Small** - Zero-dependency, small footprint, plays nice with "tree shaking" packagers +- **CLI** - Includes the [`uuid` command line](#command-line) utility + + +> [!NOTE] +> Upgrading from `uuid@3`? Your code is probably okay, but check out [Upgrading From `uuid@3`](#upgrading-from-uuid3) for details. + + +> [!NOTE] +> Only interested in creating a version 4 UUID? You might be able to use [`crypto.randomUUID()`](https://developer.mozilla.org/en-US/docs/Web/API/Crypto/randomUUID), eliminating the need to install this library. + +## Quickstart + +To create a random UUID... + +**1. Install** + +```shell +npm install uuid +``` + +**2. Create a UUID** (ES6 module syntax) + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d' +``` + +... or using CommonJS syntax: + +```javascript +const { v4: uuidv4 } = require('uuid'); +uuidv4(); // ⇨ '1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed' +``` + +For timestamp UUIDs, namespace UUIDs, and other options read on ... + +## API Summary + +| | | | +| --- | --- | --- | +| [`uuid.NIL`](#uuidnil) | The nil UUID string (all zeros) | New in `uuid@8.3` | +| [`uuid.MAX`](#uuidmax) | The max UUID string (all ones) | New in `uuid@9.1` | +| [`uuid.parse()`](#uuidparsestr) | Convert UUID string to array of bytes | New in `uuid@8.3` | +| [`uuid.stringify()`](#uuidstringifyarr-offset) | Convert array of bytes to UUID string | New in `uuid@8.3` | +| [`uuid.v1()`](#uuidv1options-buffer-offset) | Create a version 1 (timestamp) UUID | | +| [`uuid.v1ToV6()`](#uuidv1tov6uuid) | Create a version 6 UUID from a version 1 UUID | New in `uuid@10` | +| [`uuid.v3()`](#uuidv3name-namespace-buffer-offset) | Create a version 3 (namespace w/ MD5) UUID | | +| [`uuid.v4()`](#uuidv4options-buffer-offset) | Create a version 4 (random) UUID | | +| [`uuid.v5()`](#uuidv5name-namespace-buffer-offset) | Create a version 5 (namespace w/ SHA-1) UUID | | +| [`uuid.v6()`](#uuidv6options-buffer-offset) | Create a version 6 (timestamp, reordered) UUID | New in `uuid@10` | +| [`uuid.v6ToV1()`](#uuidv6tov1uuid) | Create a version 1 UUID from a version 6 UUID | New in `uuid@10` | +| [`uuid.v7()`](#uuidv7options-buffer-offset) | Create a version 7 (Unix Epoch time-based) UUID | New in `uuid@10` | +| ~~[`uuid.v8()`](#uuidv8)~~ | "Intentionally left blank" | | +| [`uuid.validate()`](#uuidvalidatestr) | Test a string to see if it is a valid UUID | New in `uuid@8.3` | +| [`uuid.version()`](#uuidversionstr) | Detect RFC version of a UUID | New in `uuid@8.3` | + +## API + +### uuid.NIL + +The nil UUID string (all zeros). + +Example: + +```javascript +import { NIL as NIL_UUID } from 'uuid'; + +NIL_UUID; // ⇨ '00000000-0000-0000-0000-000000000000' +``` + +### uuid.MAX + +The max UUID string (all ones). + +Example: + +```javascript +import { MAX as MAX_UUID } from 'uuid'; + +MAX_UUID; // ⇨ 'ffffffff-ffff-ffff-ffff-ffffffffffff' +``` + +### uuid.parse(str) + +Convert UUID string to array of bytes + +| | | +| --------- | ---------------------------------------- | +| `str` | A valid UUID `String` | +| _returns_ | `Uint8Array[16]` | +| _throws_ | `TypeError` if `str` is not a valid UUID | + + +> [!NOTE] +> Ordering of values in the byte arrays used by `parse()` and `stringify()` follows the left ↠ right order of hex-pairs in UUID strings. As shown in the example below. + +Example: + +```javascript +import { parse as uuidParse } from 'uuid'; + +// Parse a UUID +const bytes = uuidParse('6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b'); + +// Convert to hex strings to show byte order (for documentation purposes) +[...bytes].map((v) => v.toString(16).padStart(2, '0')); // ⇨ + // [ + // '6e', 'c0', 'bd', '7f', + // '11', 'c0', '43', 'da', + // '97', '5e', '2a', '8a', + // 'd9', 'eb', 'ae', '0b' + // ] +``` + +### uuid.stringify(arr[, offset]) + +Convert array of bytes to UUID string + +| | | +| -------------- | ---------------------------------------------------------------------------- | +| `arr` | `Array`-like collection of 16 values (starting from `offset`) between 0-255. | +| [`offset` = 0] | `Number` Starting index in the Array | +| _returns_ | `String` | +| _throws_ | `TypeError` if a valid UUID string cannot be generated | + + +> [!NOTE] +> Ordering of values in the byte arrays used by `parse()` and `stringify()` follows the left ↠ right order of hex-pairs in UUID strings. As shown in the example below. + +Example: + +```javascript +import { stringify as uuidStringify } from 'uuid'; + +const uuidBytes = [ + 0x6e, 0xc0, 0xbd, 0x7f, 0x11, 0xc0, 0x43, 0xda, 0x97, 0x5e, 0x2a, 0x8a, 0xd9, 0xeb, 0xae, 0x0b, +]; + +uuidStringify(uuidBytes); // ⇨ '6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b' +``` + +### uuid.v1([options[, buffer[, offset]]]) + +Create an RFC version 1 (timestamp) UUID + +| | | +| --- | --- | +| [`options`] | `Object` with one or more of the following properties: | +| [`options.node` ] | RFC "node" field as an `Array[6]` of byte values (per 4.1.6) | +| [`options.clockseq`] | RFC "clock sequence" as a `Number` between 0 - 0x3fff | +| [`options.msecs`] | RFC "timestamp" field (`Number` of milliseconds, unix epoch) | +| [`options.nsecs`] | RFC "timestamp" field (`Number` of nanoseconds to add to `msecs`, should be 0-10,000) | +| [`options.random`] | `Array` of 16 random bytes (0-255) | +| [`options.rng`] | Alternative to `options.random`, a `Function` that returns an `Array` of 16 random bytes (0-255) | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | +| _throws_ | `Error` if more than 10M UUIDs/sec are requested | + + +> [!NOTE] +> The default [node id](https://datatracker.ietf.org/doc/html/rfc9562#section-5.1) (the last 12 digits in the UUID) is generated once, randomly, on process startup, and then remains unchanged for the duration of the process. + + +> [!NOTE] +> `options.random` and `options.rng` are only meaningful on the very first call to `v1()`, where they may be passed to initialize the internal `node` and `clockseq` fields. + +Example: + +```javascript +import { v1 as uuidv1 } from 'uuid'; + +uuidv1(); // ⇨ '2c5ea4c0-4067-11e9-8bad-9b1deb4d3b7d' +``` + +Example using `options`: + +```javascript +import { v1 as uuidv1 } from 'uuid'; + +const options = { + node: [0x01, 0x23, 0x45, 0x67, 0x89, 0xab], + clockseq: 0x1234, + msecs: new Date('2011-11-01').getTime(), + nsecs: 5678, +}; +uuidv1(options); // ⇨ '710b962e-041c-11e1-9234-0123456789ab' +``` + +### uuid.v1ToV6(uuid) + +Convert a UUID from version 1 to version 6 + +```javascript +import { v1ToV6 } from 'uuid'; + +v1ToV6('92f62d9e-22c4-11ef-97e9-325096b39f47'); // ⇨ '1ef22c49-2f62-6d9e-97e9-325096b39f47' +``` + +### uuid.v3(name, namespace[, buffer[, offset]]) + +Create an RFC version 3 (namespace w/ MD5) UUID + +API is identical to `v5()`, but uses "v3" instead. + + +> [!IMPORTANT] +> Per the RFC, "_If backward compatibility is not an issue, SHA-1 [Version 5] is preferred_." + +### uuid.v4([options[, buffer[, offset]]]) + +Create an RFC version 4 (random) UUID + +| | | +| --- | --- | +| [`options`] | `Object` with one or more of the following properties: | +| [`options.random`] | `Array` of 16 random bytes (0-255) | +| [`options.rng`] | Alternative to `options.random`, a `Function` that returns an `Array` of 16 random bytes (0-255) | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | + +Example: + +```javascript +import { v4 as uuidv4 } from 'uuid'; + +uuidv4(); // ⇨ '1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed' +``` + +Example using predefined `random` values: + +```javascript +import { v4 as uuidv4 } from 'uuid'; + +const v4options = { + random: [ + 0x10, 0x91, 0x56, 0xbe, 0xc4, 0xfb, 0xc1, 0xea, 0x71, 0xb4, 0xef, 0xe1, 0x67, 0x1c, 0x58, 0x36, + ], +}; +uuidv4(v4options); // ⇨ '109156be-c4fb-41ea-b1b4-efe1671c5836' +``` + +### uuid.v5(name, namespace[, buffer[, offset]]) + +Create an RFC version 5 (namespace w/ SHA-1) UUID + +| | | +| --- | --- | +| `name` | `String \| Array` | +| `namespace` | `String \| Array[16]` Namespace UUID | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | + + +> [!NOTE] +> The RFC `DNS` and `URL` namespaces are available as `v5.DNS` and `v5.URL`. + +Example with custom namespace: + +```javascript +import { v5 as uuidv5 } from 'uuid'; + +// Define a custom namespace. Readers, create your own using something like +// https://www.uuidgenerator.net/ +const MY_NAMESPACE = '1b671a64-40d5-491e-99b0-da01ff1f3341'; + +uuidv5('Hello, World!', MY_NAMESPACE); // ⇨ '630eb68f-e0fa-5ecc-887a-7c7a62614681' +``` + +Example with RFC `URL` namespace: + +```javascript +import { v5 as uuidv5 } from 'uuid'; + +uuidv5('https://www.w3.org/', uuidv5.URL); // ⇨ 'c106a26a-21bb-5538-8bf2-57095d1976c1' +``` + +### uuid.v6([options[, buffer[, offset]]]) + +Create an RFC version 6 (timestamp, reordered) UUID + +This method takes the same arguments as uuid.v1(). + +```javascript +import { v6 as uuidv6 } from 'uuid'; + +uuidv6(); // ⇨ '1e940672-c5ea-64c0-8bad-9b1deb4d3b7d' +``` + +Example using `options`: + +```javascript +import { v6 as uuidv6 } from 'uuid'; + +const options = { + node: [0x01, 0x23, 0x45, 0x67, 0x89, 0xab], + clockseq: 0x1234, + msecs: new Date('2011-11-01').getTime(), + nsecs: 5678, +}; +uuidv6(options); // ⇨ '1e1041c7-10b9-662e-9234-0123456789ab' +``` + +### uuid.v6ToV1(uuid) + +Convert a UUID from version 6 to version 1 + +```javascript +import { v6ToV1 } from 'uuid'; + +v6ToV1('1ef22c49-2f62-6d9e-97e9-325096b39f47'); // ⇨ '92f62d9e-22c4-11ef-97e9-325096b39f47' +``` + +### uuid.v7([options[, buffer[, offset]]]) + +Create an RFC version 7 (random) UUID + +| | | +| --- | --- | +| [`options`] | `Object` with one or more of the following properties: | +| [`options.msecs`] | RFC "timestamp" field (`Number` of milliseconds, unix epoch) | +| [`options.random`] | `Array` of 16 random bytes (0-255) | +| [`options.rng`] | Alternative to `options.random`, a `Function` that returns an `Array` of 16 random bytes (0-255) | +| [`options.seq`] | 31 bit monotonic sequence counter as `Number` between 0 - 0x7fffffff | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | + +Example: + +```javascript +import { v7 as uuidv7 } from 'uuid'; + +uuidv7(); // ⇨ '01695553-c90c-722d-9b5d-b38dfbbd4bed' +``` + +### ~~uuid.v8()~~ + +**_"Intentionally left blank"_** + + +> [!NOTE] +> Version 8 (experimental) UUIDs are "[for experimental or vendor-specific use cases](https://www.rfc-editor.org/rfc/rfc9562.html#name-uuid-version-8)". The RFC does not define a creation algorithm for them, which is why this package does not offer a `v8()` method. The `validate()` and `version()` methods do work with such UUIDs, however. + +### uuid.validate(str) + +Test a string to see if it is a valid UUID + +| | | +| --------- | --------------------------------------------------- | +| `str` | `String` to validate | +| _returns_ | `true` if string is a valid UUID, `false` otherwise | + +Example: + +```javascript +import { validate as uuidValidate } from 'uuid'; + +uuidValidate('not a UUID'); // ⇨ false +uuidValidate('6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b'); // ⇨ true +``` + +Using `validate` and `version` together it is possible to do per-version validation, e.g. validate for only v4 UUIds. + +```javascript +import { version as uuidVersion } from 'uuid'; +import { validate as uuidValidate } from 'uuid'; + +function uuidValidateV4(uuid) { + return uuidValidate(uuid) && uuidVersion(uuid) === 4; +} + +const v1Uuid = 'd9428888-122b-11e1-b85c-61cd3cbb3210'; +const v4Uuid = '109156be-c4fb-41ea-b1b4-efe1671c5836'; + +uuidValidateV4(v4Uuid); // ⇨ true +uuidValidateV4(v1Uuid); // ⇨ false +``` + +### uuid.version(str) + +Detect RFC version of a UUID + +| | | +| --------- | ---------------------------------------- | +| `str` | A valid UUID `String` | +| _returns_ | `Number` The RFC version of the UUID | +| _throws_ | `TypeError` if `str` is not a valid UUID | + +Example: + +```javascript +import { version as uuidVersion } from 'uuid'; + +uuidVersion('45637ec4-c85f-11ea-87d0-0242ac130003'); // ⇨ 1 +uuidVersion('6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b'); // ⇨ 4 +``` + + +> [!NOTE] +> This method returns `0` for the `NIL` UUID, and `15` for the `MAX` UUID. + +## Command Line + +UUIDs can be generated from the command line using `uuid`. + +```shell +$ npx uuid +ddeb27fb-d9a0-4624-be4d-4615062daed4 +``` + +The default is to generate version 4 UUIDS, however the other versions are supported. Type `uuid --help` for details: + +```shell +$ npx uuid --help + +Usage: + uuid + uuid v1 + uuid v3 + uuid v4 + uuid v5 + uuid v7 + uuid --help + +Note: may be "URL" or "DNS" to use the corresponding UUIDs +defined by RFC9562 +``` + +## ECMAScript Modules + +This library comes with [ECMAScript Modules](https://www.ecma-international.org/ecma-262/6.0/#sec-modules) (ESM) support for Node.js versions that support it ([example](./examples/node-esmodules/)) as well as bundlers like [rollup.js](https://rollupjs.org/guide/en/#tree-shaking) ([example](./examples/browser-rollup/)) and [webpack](https://webpack.js.org/guides/tree-shaking/) ([example](./examples/browser-webpack/)) (targeting both, Node.js and browser environments). + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); // ⇨ '1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed' +``` + +To run the examples you must first create a dist build of this library in the module root: + +```shell +npm run build +``` + +## CDN Builds + +### ECMAScript Modules + +To load this module directly into modern browsers that [support loading ECMAScript Modules](https://caniuse.com/#feat=es6-module) you can make use of [jspm](https://jspm.org/): + +```html + +``` + +### UMD + +As of `uuid@9` [UMD (Universal Module Definition)](https://github.com/umdjs/umd) builds are no longer shipped with this library. + +If you need a UMD build of this library, use a bundler like Webpack or Rollup. Alternatively, refer to the documentation of [`uuid@8.3.2`](https://github.com/uuidjs/uuid/blob/v8.3.2/README.md#umd) which was the last version that shipped UMD builds. + +## Known issues + +### Duplicate UUIDs (Googlebot) + +This module may generate duplicate UUIDs when run in clients with _deterministic_ random number generators, such as [Googlebot crawlers](https://developers.google.com/search/docs/advanced/crawling/overview-google-crawlers). This can cause problems for apps that expect client-generated UUIDs to always be unique. Developers should be prepared for this and have a strategy for dealing with possible collisions, such as: + +- Check for duplicate UUIDs, fail gracefully +- Disable write operations for Googlebot clients + +### "getRandomValues() not supported" + +This error occurs in environments where the standard [`crypto.getRandomValues()`](https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues) API is not supported. This issue can be resolved by adding an appropriate polyfill: + +### React Native / Expo + +1. Install [`react-native-get-random-values`](https://github.com/LinusU/react-native-get-random-values#readme) +1. Import it _before_ `uuid`. Since `uuid` might also appear as a transitive dependency of some other imports it's safest to just import `react-native-get-random-values` as the very first thing in your entry point: + +```javascript +import 'react-native-get-random-values'; +import { v4 as uuidv4 } from 'uuid'; +``` + + +> [!NOTE] +> If you are using Expo, you must be using at least `react-native-get-random-values@1.5.0` and `expo@39.0.0`. + +### Web Workers / Service Workers (Edge <= 18) + +[In Edge <= 18, Web Crypto is not supported in Web Workers or Service Workers](https://caniuse.com/#feat=cryptography) and we are not aware of a polyfill (let us know if you find one, please). + +### IE 11 (Internet Explorer) + +Support for IE11 and other legacy browsers has been dropped as of `uuid@9`. If you need to support legacy browsers, you can always transpile the uuid module source yourself (e.g. using [Babel](https://babeljs.io/)). + +## Upgrading From `uuid@7` + +### Only Named Exports Supported When Using with Node.js ESM + +`uuid@7` did not come with native ECMAScript Module (ESM) support for Node.js. Importing it in Node.js ESM consequently imported the CommonJS source with a default export. This library now comes with true Node.js ESM support and only provides named exports. + +Instead of doing: + +```javascript +import uuid from 'uuid'; +uuid.v4(); +``` + +you will now have to use the named exports: + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); +``` + +### Deep Requires No Longer Supported + +Deep requires like `require('uuid/v4')` [which have been deprecated in `uuid@7`](#deep-requires-now-deprecated) are no longer supported. + +## Upgrading From `uuid@3` + +"_Wait... what happened to `uuid@4` thru `uuid@6`?!?_" + +In order to avoid confusion with RFC [version 4](#uuidv4options-buffer-offset) and [version 5](#uuidv5name-namespace-buffer-offset) UUIDs, and a possible [version 6](http://gh.peabody.io/uuidv6/), releases 4 thru 6 of this module have been skipped. + +### Deep Requires Now Deprecated + +`uuid@3` encouraged the use of deep requires to minimize the bundle size of browser builds: + +```javascript +const uuidv4 = require('uuid/v4'); // <== NOW DEPRECATED! +uuidv4(); +``` + +As of `uuid@7` this library now provides ECMAScript modules builds, which allow packagers like Webpack and Rollup to do "tree-shaking" to remove dead code. Instead, use the `import` syntax: + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); +``` + +... or for CommonJS: + +```javascript +const { v4: uuidv4 } = require('uuid'); +uuidv4(); +``` + +### Default Export Removed + +`uuid@3` was exporting the Version 4 UUID method as a default export: + +```javascript +const uuid = require('uuid'); // <== REMOVED! +``` + +This usage pattern was already discouraged in `uuid@3` and has been removed in `uuid@7`. + +--- + +Markdown generated from [README_js.md](README_js.md) by diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/bin/uuid b/week-3/02-course-app-easy/node_modules/uuid/dist/bin/uuid new file mode 100644 index 000000000..f38d2ee19 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/bin/uuid @@ -0,0 +1,2 @@ +#!/usr/bin/env node +require('../uuid-bin'); diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/index.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/index.js new file mode 100644 index 000000000..3e909f49d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/index.js @@ -0,0 +1,104 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +Object.defineProperty(exports, "MAX", { + enumerable: true, + get: function get() { + return _max.default; + } +}); +Object.defineProperty(exports, "NIL", { + enumerable: true, + get: function get() { + return _nil.default; + } +}); +Object.defineProperty(exports, "parse", { + enumerable: true, + get: function get() { + return _parse.default; + } +}); +Object.defineProperty(exports, "stringify", { + enumerable: true, + get: function get() { + return _stringify.default; + } +}); +Object.defineProperty(exports, "v1", { + enumerable: true, + get: function get() { + return _v.default; + } +}); +Object.defineProperty(exports, "v1ToV6", { + enumerable: true, + get: function get() { + return _v1ToV.default; + } +}); +Object.defineProperty(exports, "v3", { + enumerable: true, + get: function get() { + return _v2.default; + } +}); +Object.defineProperty(exports, "v4", { + enumerable: true, + get: function get() { + return _v3.default; + } +}); +Object.defineProperty(exports, "v5", { + enumerable: true, + get: function get() { + return _v4.default; + } +}); +Object.defineProperty(exports, "v6", { + enumerable: true, + get: function get() { + return _v5.default; + } +}); +Object.defineProperty(exports, "v6ToV1", { + enumerable: true, + get: function get() { + return _v6ToV.default; + } +}); +Object.defineProperty(exports, "v7", { + enumerable: true, + get: function get() { + return _v6.default; + } +}); +Object.defineProperty(exports, "validate", { + enumerable: true, + get: function get() { + return _validate.default; + } +}); +Object.defineProperty(exports, "version", { + enumerable: true, + get: function get() { + return _version.default; + } +}); +var _max = _interopRequireDefault(require("./max.js")); +var _nil = _interopRequireDefault(require("./nil.js")); +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = _interopRequireDefault(require("./stringify.js")); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +var _v2 = _interopRequireDefault(require("./v3.js")); +var _v3 = _interopRequireDefault(require("./v4.js")); +var _v4 = _interopRequireDefault(require("./v5.js")); +var _v5 = _interopRequireDefault(require("./v6.js")); +var _v6ToV = _interopRequireDefault(require("./v6ToV1.js")); +var _v6 = _interopRequireDefault(require("./v7.js")); +var _validate = _interopRequireDefault(require("./validate.js")); +var _version = _interopRequireDefault(require("./version.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/max.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/max.js new file mode 100644 index 000000000..8de76f84e --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/max.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/md5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/md5.js new file mode 100644 index 000000000..a3bf60dec --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/md5.js @@ -0,0 +1,200 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +/* + * Browser-compatible JavaScript MD5 + * + * Modification of JavaScript MD5 + * https://github.com/blueimp/JavaScript-MD5 + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * https://opensource.org/licenses/MIT + * + * Based on + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ +function md5(bytes) { + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = new Uint8Array(msg.length); + for (var i = 0; i < msg.length; ++i) { + bytes[i] = msg.charCodeAt(i); + } + } + return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); +} + +/* + * Convert an array of little-endian words to an array of bytes + */ +function md5ToHexEncodedArray(input) { + var output = []; + var length32 = input.length * 32; + var hexTab = '0123456789abcdef'; + for (var i = 0; i < length32; i += 8) { + var x = input[i >> 5] >>> i % 32 & 0xff; + var hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); + output.push(hex); + } + return output; +} + +/** + * Calculate output length with padding and bit length + */ +function getOutputLength(inputLength8) { + return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; +} + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length. + */ +function wordsToMd5(x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << len % 32; + x[getOutputLength(len) - 1] = len; + var a = 1732584193; + var b = -271733879; + var c = -1732584194; + var d = 271733878; + for (var i = 0; i < x.length; i += 16) { + var olda = a; + var oldb = b; + var oldc = c; + var oldd = d; + a = md5ff(a, b, c, d, x[i], 7, -680876936); + d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); + c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); + b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); + d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); + a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = md5ff(c, d, a, b, x[i + 10], 17, -42063); + b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); + c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); + d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); + b = md5gg(b, c, d, a, x[i], 20, -373897302); + a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); + d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); + c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); + b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); + a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); + d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); + b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); + c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = md5hh(a, b, c, d, x[i + 5], 4, -378558); + d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); + a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); + b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); + d = md5hh(d, a, b, c, x[i], 11, -358537222); + c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); + b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); + a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); + d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); + c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); + b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); + a = md5ii(a, b, c, d, x[i], 6, -198630844); + d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); + a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); + b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); + c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); + d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); + b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); + a = safeAdd(a, olda); + b = safeAdd(b, oldb); + c = safeAdd(c, oldc); + d = safeAdd(d, oldd); + } + return [a, b, c, d]; +} + +/* + * Convert an array bytes to an array of little-endian words + * Characters >255 have their high-byte silently ignored. + */ +function bytesToWords(input) { + if (input.length === 0) { + return []; + } + var length8 = input.length * 8; + var output = new Uint32Array(getOutputLength(length8)); + for (var i = 0; i < length8; i += 8) { + output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; + } + return output; +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safeAdd(x, y) { + var lsw = (x & 0xffff) + (y & 0xffff); + var msw = (x >> 16) + (y >> 16) + (lsw >> 16); + return msw << 16 | lsw & 0xffff; +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bitRotateLeft(num, cnt) { + return num << cnt | num >>> 32 - cnt; +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5cmn(q, a, b, x, s, t) { + return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); +} +function md5ff(a, b, c, d, x, s, t) { + return md5cmn(b & c | ~b & d, a, b, x, s, t); +} +function md5gg(a, b, c, d, x, s, t) { + return md5cmn(b & d | c & ~d, a, b, x, s, t); +} +function md5hh(a, b, c, d, x, s, t) { + return md5cmn(b ^ c ^ d, a, b, x, s, t); +} +function md5ii(a, b, c, d, x, s, t) { + return md5cmn(c ^ (b | ~d), a, b, x, s, t); +} +var _default = exports.default = md5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/native.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/native.js new file mode 100644 index 000000000..b48d539db --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/native.js @@ -0,0 +1,10 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto); +var _default = exports.default = { + randomUUID +}; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/nil.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/nil.js new file mode 100644 index 000000000..f7967e90c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/nil.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/parse.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/parse.js new file mode 100644 index 000000000..8ba8f5007 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/parse.js @@ -0,0 +1,44 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function parse(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + var v; + var arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +var _default = exports.default = parse; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/regex.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/regex.js new file mode 100644 index 000000000..fc02a88e8 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/regex.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/rng.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/rng.js new file mode 100644 index 000000000..6cf7e98a4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/rng.js @@ -0,0 +1,23 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = rng; +// Unique ID creation requires a high quality random # generator. In the browser we therefore +// require the crypto API and do not support built-in fallback to lower quality random number +// generators (like Math.random()). + +var getRandomValues; +var rnds8 = new Uint8Array(16); +function rng() { + // lazy load so that environments that need to polyfill have a chance to do so + if (!getRandomValues) { + // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. + getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto); + if (!getRandomValues) { + throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported'); + } + } + return getRandomValues(rnds8); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/sha1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/sha1.js new file mode 100644 index 000000000..ae1cf630b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/sha1.js @@ -0,0 +1,82 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + case 1: + return x ^ y ^ z; + case 2: + return x & y ^ x & z ^ y & z; + case 3: + return x ^ y ^ z; + } +} +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} +function sha1(bytes) { + var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + for (var i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + bytes.push(0x80); + var l = bytes.length / 4 + 2; + var N = Math.ceil(l / 16); + var M = new Array(N); + for (var _i = 0; _i < N; ++_i) { + var arr = new Uint32Array(16); + for (var j = 0; j < 16; ++j) { + arr[j] = bytes[_i * 64 + j * 4] << 24 | bytes[_i * 64 + j * 4 + 1] << 16 | bytes[_i * 64 + j * 4 + 2] << 8 | bytes[_i * 64 + j * 4 + 3]; + } + M[_i] = arr; + } + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + for (var _i2 = 0; _i2 < N; ++_i2) { + var W = new Uint32Array(80); + for (var t = 0; t < 16; ++t) { + W[t] = M[_i2][t]; + } + for (var _t = 16; _t < 80; ++_t) { + W[_t] = ROTL(W[_t - 3] ^ W[_t - 8] ^ W[_t - 14] ^ W[_t - 16], 1); + } + var a = H[0]; + var b = H[1]; + var c = H[2]; + var d = H[3]; + var e = H[4]; + for (var _t2 = 0; _t2 < 80; ++_t2) { + var s = Math.floor(_t2 / 20); + var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[_t2] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} +var _default = exports.default = sha1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/stringify.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/stringify.js new file mode 100644 index 000000000..92dec9e04 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/stringify.js @@ -0,0 +1,38 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +exports.unsafeStringify = unsafeStringify; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +var byteToHex = []; +for (var i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + var uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!(0, _validate.default)(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +var _default = exports.default = stringify; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v1.js new file mode 100644 index 000000000..978925168 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v1.js @@ -0,0 +1,131 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +var _nodeId; +var _clockseq; + +// Previous uuid creation time +var _lastMSecs = 0; +var _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + var i = buf && offset || 0; + var b = buf || new Array(16); + options = options || {}; + var node = options.node; + var clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + var seedBytes = options.random || (options.rng || _rng.default)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + var tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (var n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v1ToV6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v1ToV6.js new file mode 100644 index 000000000..0b4319973 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v1ToV6.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v1ToV6; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v1ToV6(uuid) { + var v1Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + var v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v3.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v3.js new file mode 100644 index 000000000..8761fc3b9 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v3.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _md = _interopRequireDefault(require("./md5.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +var v3 = (0, _v.default)('v3', 0x30, _md.default); +var _default = exports.default = v3; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v35.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v35.js new file mode 100644 index 000000000..c22c23c09 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v35.js @@ -0,0 +1,63 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.URL = exports.DNS = void 0; +exports.default = v35; +var _stringify = require("./stringify.js"); +var _parse = _interopRequireDefault(require("./parse.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + var bytes = []; + for (var i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +var DNS = exports.DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +var URL = exports.URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = (0, _parse.default)(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + var bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v4.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v4.js new file mode 100644 index 000000000..2242a3ae3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v4.js @@ -0,0 +1,32 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _native = _interopRequireDefault(require("./native.js")); +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function v4(options, buf, offset) { + if (_native.default.randomUUID && !buf && !options) { + return _native.default.randomUUID(); + } + options = options || {}; + var rnds = options.random || (options.rng || _rng.default)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(rnds); +} +var _default = exports.default = v4; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v5.js new file mode 100644 index 000000000..54ad2cbec --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v5.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _sha = _interopRequireDefault(require("./sha1.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +var v5 = (0, _v.default)('v5', 0x50, _sha.default); +var _default = exports.default = v5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v6.js new file mode 100644 index 000000000..cc4ece9c0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v6.js @@ -0,0 +1,42 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6; +var _stringify = require("./stringify.js"); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; } +function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } +function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; } +function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; } +function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + var bytes = (0, _v.default)(_objectSpread(_objectSpread({}, options), {}, { + _v6: true + }), new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = (0, _v1ToV.default)(bytes); + + // Return as a byte array if requested + if (buf) { + for (var i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v6ToV1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v6ToV1.js new file mode 100644 index 000000000..3c8350a98 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v6ToV1.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6ToV1; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v6ToV1(uuid) { + var v6Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + var v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v7.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v7.js new file mode 100644 index 000000000..2e42801cb --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/v7.js @@ -0,0 +1,152 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +var _seqLow = null; +var _seqHigh = null; +var _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + var i = buf && offset || 0; + var b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + var rnds = options.random || (options.rng || _rng.default)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + var seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + var seqHigh = _seqHigh; + var seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v7; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/validate.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/validate.js new file mode 100644 index 000000000..d47181aad --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/validate.js @@ -0,0 +1,12 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _regex = _interopRequireDefault(require("./regex.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function validate(uuid) { + return typeof uuid === 'string' && _regex.default.test(uuid); +} +var _default = exports.default = validate; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/version.js b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/version.js new file mode 100644 index 000000000..0c6bbdd5d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/commonjs-browser/version.js @@ -0,0 +1,15 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function version(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +var _default = exports.default = version; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/index.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/index.js new file mode 100644 index 000000000..45214b37b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/index.js @@ -0,0 +1,14 @@ +export { default as MAX } from './max.js'; +export { default as NIL } from './nil.js'; +export { default as parse } from './parse.js'; +export { default as stringify } from './stringify.js'; +export { default as v1 } from './v1.js'; +export { default as v1ToV6 } from './v1ToV6.js'; +export { default as v3 } from './v3.js'; +export { default as v4 } from './v4.js'; +export { default as v5 } from './v5.js'; +export { default as v6 } from './v6.js'; +export { default as v6ToV1 } from './v6ToV1.js'; +export { default as v7 } from './v7.js'; +export { default as validate } from './validate.js'; +export { default as version } from './version.js'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/max.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/max.js new file mode 100644 index 000000000..f46a281f5 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/max.js @@ -0,0 +1 @@ +export default 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/md5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/md5.js new file mode 100644 index 000000000..82d170e70 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/md5.js @@ -0,0 +1,194 @@ +/* + * Browser-compatible JavaScript MD5 + * + * Modification of JavaScript MD5 + * https://github.com/blueimp/JavaScript-MD5 + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * https://opensource.org/licenses/MIT + * + * Based on + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ +function md5(bytes) { + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = new Uint8Array(msg.length); + for (var i = 0; i < msg.length; ++i) { + bytes[i] = msg.charCodeAt(i); + } + } + return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); +} + +/* + * Convert an array of little-endian words to an array of bytes + */ +function md5ToHexEncodedArray(input) { + var output = []; + var length32 = input.length * 32; + var hexTab = '0123456789abcdef'; + for (var i = 0; i < length32; i += 8) { + var x = input[i >> 5] >>> i % 32 & 0xff; + var hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); + output.push(hex); + } + return output; +} + +/** + * Calculate output length with padding and bit length + */ +function getOutputLength(inputLength8) { + return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; +} + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length. + */ +function wordsToMd5(x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << len % 32; + x[getOutputLength(len) - 1] = len; + var a = 1732584193; + var b = -271733879; + var c = -1732584194; + var d = 271733878; + for (var i = 0; i < x.length; i += 16) { + var olda = a; + var oldb = b; + var oldc = c; + var oldd = d; + a = md5ff(a, b, c, d, x[i], 7, -680876936); + d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); + c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); + b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); + d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); + a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = md5ff(c, d, a, b, x[i + 10], 17, -42063); + b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); + c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); + d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); + b = md5gg(b, c, d, a, x[i], 20, -373897302); + a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); + d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); + c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); + b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); + a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); + d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); + b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); + c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = md5hh(a, b, c, d, x[i + 5], 4, -378558); + d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); + a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); + b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); + d = md5hh(d, a, b, c, x[i], 11, -358537222); + c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); + b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); + a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); + d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); + c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); + b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); + a = md5ii(a, b, c, d, x[i], 6, -198630844); + d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); + a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); + b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); + c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); + d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); + b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); + a = safeAdd(a, olda); + b = safeAdd(b, oldb); + c = safeAdd(c, oldc); + d = safeAdd(d, oldd); + } + return [a, b, c, d]; +} + +/* + * Convert an array bytes to an array of little-endian words + * Characters >255 have their high-byte silently ignored. + */ +function bytesToWords(input) { + if (input.length === 0) { + return []; + } + var length8 = input.length * 8; + var output = new Uint32Array(getOutputLength(length8)); + for (var i = 0; i < length8; i += 8) { + output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; + } + return output; +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safeAdd(x, y) { + var lsw = (x & 0xffff) + (y & 0xffff); + var msw = (x >> 16) + (y >> 16) + (lsw >> 16); + return msw << 16 | lsw & 0xffff; +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bitRotateLeft(num, cnt) { + return num << cnt | num >>> 32 - cnt; +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5cmn(q, a, b, x, s, t) { + return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); +} +function md5ff(a, b, c, d, x, s, t) { + return md5cmn(b & c | ~b & d, a, b, x, s, t); +} +function md5gg(a, b, c, d, x, s, t) { + return md5cmn(b & d | c & ~d, a, b, x, s, t); +} +function md5hh(a, b, c, d, x, s, t) { + return md5cmn(b ^ c ^ d, a, b, x, s, t); +} +function md5ii(a, b, c, d, x, s, t) { + return md5cmn(c ^ (b | ~d), a, b, x, s, t); +} +export default md5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/native.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/native.js new file mode 100644 index 000000000..ba09dec7d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/native.js @@ -0,0 +1,4 @@ +var randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto); +export default { + randomUUID +}; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/nil.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/nil.js new file mode 100644 index 000000000..b36324c2a --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/nil.js @@ -0,0 +1 @@ +export default '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/parse.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/parse.js new file mode 100644 index 000000000..87588317f --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/parse.js @@ -0,0 +1,37 @@ +import validate from './validate.js'; +function parse(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + var v; + var arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +export default parse; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/regex.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/regex.js new file mode 100644 index 000000000..848a1fea3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/regex.js @@ -0,0 +1 @@ +export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/rng.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/rng.js new file mode 100644 index 000000000..e54d3888a --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/rng.js @@ -0,0 +1,17 @@ +// Unique ID creation requires a high quality random # generator. In the browser we therefore +// require the crypto API and do not support built-in fallback to lower quality random number +// generators (like Math.random()). + +var getRandomValues; +var rnds8 = new Uint8Array(16); +export default function rng() { + // lazy load so that environments that need to polyfill have a chance to do so + if (!getRandomValues) { + // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. + getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto); + if (!getRandomValues) { + throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported'); + } + } + return getRandomValues(rnds8); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/sha1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/sha1.js new file mode 100644 index 000000000..bd8831157 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/sha1.js @@ -0,0 +1,76 @@ +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + case 1: + return x ^ y ^ z; + case 2: + return x & y ^ x & z ^ y & z; + case 3: + return x ^ y ^ z; + } +} +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} +function sha1(bytes) { + var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + for (var i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + bytes.push(0x80); + var l = bytes.length / 4 + 2; + var N = Math.ceil(l / 16); + var M = new Array(N); + for (var _i = 0; _i < N; ++_i) { + var arr = new Uint32Array(16); + for (var j = 0; j < 16; ++j) { + arr[j] = bytes[_i * 64 + j * 4] << 24 | bytes[_i * 64 + j * 4 + 1] << 16 | bytes[_i * 64 + j * 4 + 2] << 8 | bytes[_i * 64 + j * 4 + 3]; + } + M[_i] = arr; + } + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + for (var _i2 = 0; _i2 < N; ++_i2) { + var W = new Uint32Array(80); + for (var t = 0; t < 16; ++t) { + W[t] = M[_i2][t]; + } + for (var _t = 16; _t < 80; ++_t) { + W[_t] = ROTL(W[_t - 3] ^ W[_t - 8] ^ W[_t - 14] ^ W[_t - 16], 1); + } + var a = H[0]; + var b = H[1]; + var c = H[2]; + var d = H[3]; + var e = H[4]; + for (var _t2 = 0; _t2 < 80; ++_t2) { + var s = Math.floor(_t2 / 20); + var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[_t2] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} +export default sha1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/stringify.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/stringify.js new file mode 100644 index 000000000..0a9cf4081 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/stringify.js @@ -0,0 +1,31 @@ +import validate from './validate.js'; + +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +var byteToHex = []; +for (var i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +export function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + var uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!validate(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +export default stringify; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v1.js new file mode 100644 index 000000000..d42a904e0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v1.js @@ -0,0 +1,125 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +var _nodeId; +var _clockseq; + +// Previous uuid creation time +var _lastMSecs = 0; +var _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + var i = buf && offset || 0; + var b = buf || new Array(16); + options = options || {}; + var node = options.node; + var clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + var seedBytes = options.random || (options.rng || rng)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + var tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (var n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || unsafeStringify(b); +} +export default v1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v1ToV6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v1ToV6.js new file mode 100644 index 000000000..e4ecc2917 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v1ToV6.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v1ToV6(uuid) { + var v1Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + var v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? unsafeStringify(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v3.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v3.js new file mode 100644 index 000000000..c9ab9a4cd --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v3.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import md5 from './md5.js'; +var v3 = v35('v3', 0x30, md5); +export default v3; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v35.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v35.js new file mode 100644 index 000000000..e5fd93fb7 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v35.js @@ -0,0 +1,55 @@ +import { unsafeStringify } from './stringify.js'; +import parse from './parse.js'; +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + var bytes = []; + for (var i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +export var DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +export var URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +export default function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = parse(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + var bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v4.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v4.js new file mode 100644 index 000000000..f107002b8 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v4.js @@ -0,0 +1,25 @@ +import native from './native.js'; +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; +function v4(options, buf, offset) { + if (native.randomUUID && !buf && !options) { + return native.randomUUID(); + } + options = options || {}; + var rnds = options.random || (options.rng || rng)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return unsafeStringify(rnds); +} +export default v4; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v5.js new file mode 100644 index 000000000..c08d96ba0 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v5.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import sha1 from './sha1.js'; +var v5 = v35('v5', 0x50, sha1); +export default v5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v6.js new file mode 100644 index 000000000..13f9e916c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v6.js @@ -0,0 +1,36 @@ +function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; } +function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } +function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; } +function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; } +function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } +import { unsafeStringify } from './stringify.js'; +import v1 from './v1.js'; +import v1ToV6 from './v1ToV6.js'; + +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +export default function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + var bytes = v1(_objectSpread(_objectSpread({}, options), {}, { + _v6: true + }), new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = v1ToV6(bytes); + + // Return as a byte array if requested + if (buf) { + for (var i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v6ToV1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v6ToV1.js new file mode 100644 index 000000000..3dd1058fc --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v6ToV1.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v6ToV1(uuid) { + var v6Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + var v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? unsafeStringify(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v7.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v7.js new file mode 100644 index 000000000..324153b69 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/v7.js @@ -0,0 +1,146 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +var _seqLow = null; +var _seqHigh = null; +var _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + var i = buf && offset || 0; + var b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + var rnds = options.random || (options.rng || rng)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + var seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + var seqHigh = _seqHigh; + var seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || unsafeStringify(b); +} +export default v7; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/validate.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/validate.js new file mode 100644 index 000000000..6e40fa587 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/validate.js @@ -0,0 +1,5 @@ +import REGEX from './regex.js'; +function validate(uuid) { + return typeof uuid === 'string' && REGEX.test(uuid); +} +export default validate; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/version.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/version.js new file mode 100644 index 000000000..4ca924eed --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-browser/version.js @@ -0,0 +1,8 @@ +import validate from './validate.js'; +function version(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +export default version; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/index.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/index.js new file mode 100644 index 000000000..45214b37b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/index.js @@ -0,0 +1,14 @@ +export { default as MAX } from './max.js'; +export { default as NIL } from './nil.js'; +export { default as parse } from './parse.js'; +export { default as stringify } from './stringify.js'; +export { default as v1 } from './v1.js'; +export { default as v1ToV6 } from './v1ToV6.js'; +export { default as v3 } from './v3.js'; +export { default as v4 } from './v4.js'; +export { default as v5 } from './v5.js'; +export { default as v6 } from './v6.js'; +export { default as v6ToV1 } from './v6ToV1.js'; +export { default as v7 } from './v7.js'; +export { default as validate } from './validate.js'; +export { default as version } from './version.js'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/max.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/max.js new file mode 100644 index 000000000..f46a281f5 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/max.js @@ -0,0 +1 @@ +export default 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/md5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/md5.js new file mode 100644 index 000000000..b3d890ea4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/md5.js @@ -0,0 +1,10 @@ +import crypto from 'node:crypto'; +function md5(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return crypto.createHash('md5').update(bytes).digest(); +} +export default md5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/native.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/native.js new file mode 100644 index 000000000..d688de1d3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/native.js @@ -0,0 +1,4 @@ +import crypto from 'node:crypto'; +export default { + randomUUID: crypto.randomUUID +}; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/nil.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/nil.js new file mode 100644 index 000000000..b36324c2a --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/nil.js @@ -0,0 +1 @@ +export default '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/parse.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/parse.js new file mode 100644 index 000000000..80851ffab --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/parse.js @@ -0,0 +1,37 @@ +import validate from './validate.js'; +function parse(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + let v; + const arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +export default parse; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/regex.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/regex.js new file mode 100644 index 000000000..848a1fea3 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/regex.js @@ -0,0 +1 @@ +export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/rng.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/rng.js new file mode 100644 index 000000000..69ee52417 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/rng.js @@ -0,0 +1,10 @@ +import crypto from 'node:crypto'; +const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate +let poolPtr = rnds8Pool.length; +export default function rng() { + if (poolPtr > rnds8Pool.length - 16) { + crypto.randomFillSync(rnds8Pool); + poolPtr = 0; + } + return rnds8Pool.slice(poolPtr, poolPtr += 16); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/sha1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/sha1.js new file mode 100644 index 000000000..22217871d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/sha1.js @@ -0,0 +1,10 @@ +import crypto from 'node:crypto'; +function sha1(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return crypto.createHash('sha1').update(bytes).digest(); +} +export default sha1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/stringify.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/stringify.js new file mode 100644 index 000000000..7792d4e1e --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/stringify.js @@ -0,0 +1,31 @@ +import validate from './validate.js'; + +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +const byteToHex = []; +for (let i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +export function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + const uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!validate(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +export default stringify; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v1.js new file mode 100644 index 000000000..6bf0b1c6d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v1.js @@ -0,0 +1,125 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +let _nodeId; +let _clockseq; + +// Previous uuid creation time +let _lastMSecs = 0; +let _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + let i = buf && offset || 0; + const b = buf || new Array(16); + options = options || {}; + let node = options.node; + let clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + const seedBytes = options.random || (options.rng || rng)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + let msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + let nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + const dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + const tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (let n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || unsafeStringify(b); +} +export default v1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v1ToV6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v1ToV6.js new file mode 100644 index 000000000..15aea2fb2 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v1ToV6.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v1ToV6(uuid) { + const v1Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + const v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? unsafeStringify(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v3.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v3.js new file mode 100644 index 000000000..09063b860 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v3.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import md5 from './md5.js'; +const v3 = v35('v3', 0x30, md5); +export default v3; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v35.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v35.js new file mode 100644 index 000000000..013c86962 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v35.js @@ -0,0 +1,55 @@ +import { unsafeStringify } from './stringify.js'; +import parse from './parse.js'; +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + const bytes = []; + for (let i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +export const DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +export const URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +export default function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = parse(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + let bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v4.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v4.js new file mode 100644 index 000000000..ed1db71ed --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v4.js @@ -0,0 +1,25 @@ +import native from './native.js'; +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; +function v4(options, buf, offset) { + if (native.randomUUID && !buf && !options) { + return native.randomUUID(); + } + options = options || {}; + const rnds = options.random || (options.rng || rng)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return unsafeStringify(rnds); +} +export default v4; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v5.js new file mode 100644 index 000000000..e87fe317d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v5.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import sha1 from './sha1.js'; +const v5 = v35('v5', 0x50, sha1); +export default v5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v6.js new file mode 100644 index 000000000..673d025ef --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v6.js @@ -0,0 +1,32 @@ +import { unsafeStringify } from './stringify.js'; +import v1 from './v1.js'; +import v1ToV6 from './v1ToV6.js'; + +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +export default function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + let bytes = v1({ + ...options, + _v6: true + }, new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = v1ToV6(bytes); + + // Return as a byte array if requested + if (buf) { + for (let i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v6ToV1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v6ToV1.js new file mode 100644 index 000000000..e2fdfff68 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v6ToV1.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v6ToV1(uuid) { + const v6Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + const v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? unsafeStringify(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v7.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v7.js new file mode 100644 index 000000000..18159e19b --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/v7.js @@ -0,0 +1,146 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +let _seqLow = null; +let _seqHigh = null; +let _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + let i = buf && offset || 0; + const b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + const rnds = options.random || (options.rng || rng)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + const msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + let seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + let seqHigh = _seqHigh; + let seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || unsafeStringify(b); +} +export default v7; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/validate.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/validate.js new file mode 100644 index 000000000..6e40fa587 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/validate.js @@ -0,0 +1,5 @@ +import REGEX from './regex.js'; +function validate(uuid) { + return typeof uuid === 'string' && REGEX.test(uuid); +} +export default validate; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/version.js b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/version.js new file mode 100644 index 000000000..4ca924eed --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/esm-node/version.js @@ -0,0 +1,8 @@ +import validate from './validate.js'; +function version(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +export default version; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/index.js b/week-3/02-course-app-easy/node_modules/uuid/dist/index.js new file mode 100644 index 000000000..cd6eb746e --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/index.js @@ -0,0 +1,104 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +Object.defineProperty(exports, "MAX", { + enumerable: true, + get: function () { + return _max.default; + } +}); +Object.defineProperty(exports, "NIL", { + enumerable: true, + get: function () { + return _nil.default; + } +}); +Object.defineProperty(exports, "parse", { + enumerable: true, + get: function () { + return _parse.default; + } +}); +Object.defineProperty(exports, "stringify", { + enumerable: true, + get: function () { + return _stringify.default; + } +}); +Object.defineProperty(exports, "v1", { + enumerable: true, + get: function () { + return _v.default; + } +}); +Object.defineProperty(exports, "v1ToV6", { + enumerable: true, + get: function () { + return _v1ToV.default; + } +}); +Object.defineProperty(exports, "v3", { + enumerable: true, + get: function () { + return _v2.default; + } +}); +Object.defineProperty(exports, "v4", { + enumerable: true, + get: function () { + return _v3.default; + } +}); +Object.defineProperty(exports, "v5", { + enumerable: true, + get: function () { + return _v4.default; + } +}); +Object.defineProperty(exports, "v6", { + enumerable: true, + get: function () { + return _v5.default; + } +}); +Object.defineProperty(exports, "v6ToV1", { + enumerable: true, + get: function () { + return _v6ToV.default; + } +}); +Object.defineProperty(exports, "v7", { + enumerable: true, + get: function () { + return _v6.default; + } +}); +Object.defineProperty(exports, "validate", { + enumerable: true, + get: function () { + return _validate.default; + } +}); +Object.defineProperty(exports, "version", { + enumerable: true, + get: function () { + return _version.default; + } +}); +var _max = _interopRequireDefault(require("./max.js")); +var _nil = _interopRequireDefault(require("./nil.js")); +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = _interopRequireDefault(require("./stringify.js")); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +var _v2 = _interopRequireDefault(require("./v3.js")); +var _v3 = _interopRequireDefault(require("./v4.js")); +var _v4 = _interopRequireDefault(require("./v5.js")); +var _v5 = _interopRequireDefault(require("./v6.js")); +var _v6ToV = _interopRequireDefault(require("./v6ToV1.js")); +var _v6 = _interopRequireDefault(require("./v7.js")); +var _validate = _interopRequireDefault(require("./validate.js")); +var _version = _interopRequireDefault(require("./version.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/max.js b/week-3/02-course-app-easy/node_modules/uuid/dist/max.js new file mode 100644 index 000000000..8de76f84e --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/max.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/md5-browser.js b/week-3/02-course-app-easy/node_modules/uuid/dist/md5-browser.js new file mode 100644 index 000000000..f0d31f5a4 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/md5-browser.js @@ -0,0 +1,200 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +/* + * Browser-compatible JavaScript MD5 + * + * Modification of JavaScript MD5 + * https://github.com/blueimp/JavaScript-MD5 + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * https://opensource.org/licenses/MIT + * + * Based on + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ +function md5(bytes) { + if (typeof bytes === 'string') { + const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = new Uint8Array(msg.length); + for (let i = 0; i < msg.length; ++i) { + bytes[i] = msg.charCodeAt(i); + } + } + return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); +} + +/* + * Convert an array of little-endian words to an array of bytes + */ +function md5ToHexEncodedArray(input) { + const output = []; + const length32 = input.length * 32; + const hexTab = '0123456789abcdef'; + for (let i = 0; i < length32; i += 8) { + const x = input[i >> 5] >>> i % 32 & 0xff; + const hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); + output.push(hex); + } + return output; +} + +/** + * Calculate output length with padding and bit length + */ +function getOutputLength(inputLength8) { + return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; +} + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length. + */ +function wordsToMd5(x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << len % 32; + x[getOutputLength(len) - 1] = len; + let a = 1732584193; + let b = -271733879; + let c = -1732584194; + let d = 271733878; + for (let i = 0; i < x.length; i += 16) { + const olda = a; + const oldb = b; + const oldc = c; + const oldd = d; + a = md5ff(a, b, c, d, x[i], 7, -680876936); + d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); + c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); + b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); + d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); + a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = md5ff(c, d, a, b, x[i + 10], 17, -42063); + b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); + c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); + d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); + b = md5gg(b, c, d, a, x[i], 20, -373897302); + a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); + d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); + c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); + b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); + a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); + d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); + b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); + c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = md5hh(a, b, c, d, x[i + 5], 4, -378558); + d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); + a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); + b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); + d = md5hh(d, a, b, c, x[i], 11, -358537222); + c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); + b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); + a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); + d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); + c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); + b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); + a = md5ii(a, b, c, d, x[i], 6, -198630844); + d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); + a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); + b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); + c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); + d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); + b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); + a = safeAdd(a, olda); + b = safeAdd(b, oldb); + c = safeAdd(c, oldc); + d = safeAdd(d, oldd); + } + return [a, b, c, d]; +} + +/* + * Convert an array bytes to an array of little-endian words + * Characters >255 have their high-byte silently ignored. + */ +function bytesToWords(input) { + if (input.length === 0) { + return []; + } + const length8 = input.length * 8; + const output = new Uint32Array(getOutputLength(length8)); + for (let i = 0; i < length8; i += 8) { + output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; + } + return output; +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safeAdd(x, y) { + const lsw = (x & 0xffff) + (y & 0xffff); + const msw = (x >> 16) + (y >> 16) + (lsw >> 16); + return msw << 16 | lsw & 0xffff; +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bitRotateLeft(num, cnt) { + return num << cnt | num >>> 32 - cnt; +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5cmn(q, a, b, x, s, t) { + return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); +} +function md5ff(a, b, c, d, x, s, t) { + return md5cmn(b & c | ~b & d, a, b, x, s, t); +} +function md5gg(a, b, c, d, x, s, t) { + return md5cmn(b & d | c & ~d, a, b, x, s, t); +} +function md5hh(a, b, c, d, x, s, t) { + return md5cmn(b ^ c ^ d, a, b, x, s, t); +} +function md5ii(a, b, c, d, x, s, t) { + return md5cmn(c ^ (b | ~d), a, b, x, s, t); +} +var _default = exports.default = md5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/md5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/md5.js new file mode 100644 index 000000000..135b24df6 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/md5.js @@ -0,0 +1,17 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function md5(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return _nodeCrypto.default.createHash('md5').update(bytes).digest(); +} +var _default = exports.default = md5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/native-browser.js b/week-3/02-course-app-easy/node_modules/uuid/dist/native-browser.js new file mode 100644 index 000000000..bc5d3830c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/native-browser.js @@ -0,0 +1,10 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +const randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto); +var _default = exports.default = { + randomUUID +}; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/native.js b/week-3/02-course-app-easy/node_modules/uuid/dist/native.js new file mode 100644 index 000000000..4c273c559 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/native.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +var _default = exports.default = { + randomUUID: _nodeCrypto.default.randomUUID +}; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/nil.js b/week-3/02-course-app-easy/node_modules/uuid/dist/nil.js new file mode 100644 index 000000000..f7967e90c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/nil.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/parse.js b/week-3/02-course-app-easy/node_modules/uuid/dist/parse.js new file mode 100644 index 000000000..1707c9080 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/parse.js @@ -0,0 +1,44 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function parse(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + let v; + const arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +var _default = exports.default = parse; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/regex.js b/week-3/02-course-app-easy/node_modules/uuid/dist/regex.js new file mode 100644 index 000000000..fc02a88e8 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/regex.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/rng-browser.js b/week-3/02-course-app-easy/node_modules/uuid/dist/rng-browser.js new file mode 100644 index 000000000..e257738fe --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/rng-browser.js @@ -0,0 +1,23 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = rng; +// Unique ID creation requires a high quality random # generator. In the browser we therefore +// require the crypto API and do not support built-in fallback to lower quality random number +// generators (like Math.random()). + +let getRandomValues; +const rnds8 = new Uint8Array(16); +function rng() { + // lazy load so that environments that need to polyfill have a chance to do so + if (!getRandomValues) { + // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. + getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto); + if (!getRandomValues) { + throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported'); + } + } + return getRandomValues(rnds8); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/rng.js b/week-3/02-course-app-easy/node_modules/uuid/dist/rng.js new file mode 100644 index 000000000..f5eb9a1d5 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/rng.js @@ -0,0 +1,17 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = rng; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate +let poolPtr = rnds8Pool.length; +function rng() { + if (poolPtr > rnds8Pool.length - 16) { + _nodeCrypto.default.randomFillSync(rnds8Pool); + poolPtr = 0; + } + return rnds8Pool.slice(poolPtr, poolPtr += 16); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/sha1-browser.js b/week-3/02-course-app-easy/node_modules/uuid/dist/sha1-browser.js new file mode 100644 index 000000000..ded98db2c --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/sha1-browser.js @@ -0,0 +1,82 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + case 1: + return x ^ y ^ z; + case 2: + return x & y ^ x & z ^ y & z; + case 3: + return x ^ y ^ z; + } +} +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} +function sha1(bytes) { + const K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + const H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + if (typeof bytes === 'string') { + const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + for (let i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + bytes.push(0x80); + const l = bytes.length / 4 + 2; + const N = Math.ceil(l / 16); + const M = new Array(N); + for (let i = 0; i < N; ++i) { + const arr = new Uint32Array(16); + for (let j = 0; j < 16; ++j) { + arr[j] = bytes[i * 64 + j * 4] << 24 | bytes[i * 64 + j * 4 + 1] << 16 | bytes[i * 64 + j * 4 + 2] << 8 | bytes[i * 64 + j * 4 + 3]; + } + M[i] = arr; + } + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + for (let i = 0; i < N; ++i) { + const W = new Uint32Array(80); + for (let t = 0; t < 16; ++t) { + W[t] = M[i][t]; + } + for (let t = 16; t < 80; ++t) { + W[t] = ROTL(W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16], 1); + } + let a = H[0]; + let b = H[1]; + let c = H[2]; + let d = H[3]; + let e = H[4]; + for (let t = 0; t < 80; ++t) { + const s = Math.floor(t / 20); + const T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[t] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} +var _default = exports.default = sha1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/sha1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/sha1.js new file mode 100644 index 000000000..3b9ded990 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/sha1.js @@ -0,0 +1,17 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function sha1(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return _nodeCrypto.default.createHash('sha1').update(bytes).digest(); +} +var _default = exports.default = sha1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/stringify.js b/week-3/02-course-app-easy/node_modules/uuid/dist/stringify.js new file mode 100644 index 000000000..2522dc978 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/stringify.js @@ -0,0 +1,38 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +exports.unsafeStringify = unsafeStringify; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +const byteToHex = []; +for (let i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + const uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!(0, _validate.default)(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +var _default = exports.default = stringify; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/uuid-bin.js b/week-3/02-course-app-easy/node_modules/uuid/dist/uuid-bin.js new file mode 100644 index 000000000..d039dfe01 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/uuid-bin.js @@ -0,0 +1,75 @@ +"use strict"; + +var _assert = _interopRequireDefault(require("assert")); +var _v = _interopRequireDefault(require("./v1.js")); +var _v2 = _interopRequireDefault(require("./v3.js")); +var _v3 = _interopRequireDefault(require("./v4.js")); +var _v4 = _interopRequireDefault(require("./v5.js")); +var _v5 = _interopRequireDefault(require("./v6.js")); +var _v6 = _interopRequireDefault(require("./v7.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function usage() { + console.log('Usage:'); + console.log(' uuid'); + console.log(' uuid v1'); + console.log(' uuid v3 '); + console.log(' uuid v4'); + console.log(' uuid v5 '); + console.log(' uuid v6'); + console.log(' uuid v7'); + console.log(' uuid --help'); + console.log('\nNote: may be "URL" or "DNS" to use the corresponding UUIDs defined by RFC9562'); +} +const args = process.argv.slice(2); +if (args.indexOf('--help') >= 0) { + usage(); + process.exit(0); +} +const version = args.shift() || 'v4'; +switch (version) { + case 'v1': + console.log((0, _v.default)()); + break; + case 'v3': + { + const name = args.shift(); + let namespace = args.shift(); + (0, _assert.default)(name != null, 'v3 name not specified'); + (0, _assert.default)(namespace != null, 'v3 namespace not specified'); + if (namespace === 'URL') { + namespace = _v2.default.URL; + } + if (namespace === 'DNS') { + namespace = _v2.default.DNS; + } + console.log((0, _v2.default)(name, namespace)); + break; + } + case 'v4': + console.log((0, _v3.default)()); + break; + case 'v5': + { + const name = args.shift(); + let namespace = args.shift(); + (0, _assert.default)(name != null, 'v5 name not specified'); + (0, _assert.default)(namespace != null, 'v5 namespace not specified'); + if (namespace === 'URL') { + namespace = _v4.default.URL; + } + if (namespace === 'DNS') { + namespace = _v4.default.DNS; + } + console.log((0, _v4.default)(name, namespace)); + break; + } + case 'v6': + console.log((0, _v5.default)()); + break; + case 'v7': + console.log((0, _v6.default)()); + break; + default: + usage(); + process.exit(1); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v1.js new file mode 100644 index 000000000..c6b9344ad --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v1.js @@ -0,0 +1,131 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +let _nodeId; +let _clockseq; + +// Previous uuid creation time +let _lastMSecs = 0; +let _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + let i = buf && offset || 0; + const b = buf || new Array(16); + options = options || {}; + let node = options.node; + let clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + const seedBytes = options.random || (options.rng || _rng.default)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + let msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + let nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + const dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + const tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (let n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v1; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v1ToV6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v1ToV6.js new file mode 100644 index 000000000..ce5637347 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v1ToV6.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v1ToV6; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v1ToV6(uuid) { + const v1Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + const v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v3.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v3.js new file mode 100644 index 000000000..a3eed7e56 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v3.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _md = _interopRequireDefault(require("./md5.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +const v3 = (0, _v.default)('v3', 0x30, _md.default); +var _default = exports.default = v3; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v35.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v35.js new file mode 100644 index 000000000..f2e35ae22 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v35.js @@ -0,0 +1,63 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.URL = exports.DNS = void 0; +exports.default = v35; +var _stringify = require("./stringify.js"); +var _parse = _interopRequireDefault(require("./parse.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + const bytes = []; + for (let i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +const DNS = exports.DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +const URL = exports.URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = (0, _parse.default)(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + let bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v4.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v4.js new file mode 100644 index 000000000..6f2744b89 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v4.js @@ -0,0 +1,32 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _native = _interopRequireDefault(require("./native.js")); +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function v4(options, buf, offset) { + if (_native.default.randomUUID && !buf && !options) { + return _native.default.randomUUID(); + } + options = options || {}; + const rnds = options.random || (options.rng || _rng.default)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(rnds); +} +var _default = exports.default = v4; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v5.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v5.js new file mode 100644 index 000000000..63063bb27 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v5.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _sha = _interopRequireDefault(require("./sha1.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +const v5 = (0, _v.default)('v5', 0x50, _sha.default); +var _default = exports.default = v5; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v6.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v6.js new file mode 100644 index 000000000..627c6a7bb --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v6.js @@ -0,0 +1,38 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6; +var _stringify = require("./stringify.js"); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + let bytes = (0, _v.default)({ + ...options, + _v6: true + }, new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = (0, _v1ToV.default)(bytes); + + // Return as a byte array if requested + if (buf) { + for (let i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v6ToV1.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v6ToV1.js new file mode 100644 index 000000000..a01986100 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v6ToV1.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6ToV1; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v6ToV1(uuid) { + const v6Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + const v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/v7.js b/week-3/02-course-app-easy/node_modules/uuid/dist/v7.js new file mode 100644 index 000000000..85831e12d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/v7.js @@ -0,0 +1,152 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +let _seqLow = null; +let _seqHigh = null; +let _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + let i = buf && offset || 0; + const b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + const rnds = options.random || (options.rng || _rng.default)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + const msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + let seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + let seqHigh = _seqHigh; + let seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v7; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/validate.js b/week-3/02-course-app-easy/node_modules/uuid/dist/validate.js new file mode 100644 index 000000000..d47181aad --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/validate.js @@ -0,0 +1,12 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _regex = _interopRequireDefault(require("./regex.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function validate(uuid) { + return typeof uuid === 'string' && _regex.default.test(uuid); +} +var _default = exports.default = validate; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/dist/version.js b/week-3/02-course-app-easy/node_modules/uuid/dist/version.js new file mode 100644 index 000000000..0c6bbdd5d --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/dist/version.js @@ -0,0 +1,15 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function version(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +var _default = exports.default = version; \ No newline at end of file diff --git a/week-3/02-course-app-easy/node_modules/uuid/package.json b/week-3/02-course-app-easy/node_modules/uuid/package.json new file mode 100644 index 000000000..dea12c6e9 --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/package.json @@ -0,0 +1,142 @@ +{ + "name": "uuid", + "version": "10.0.0", + "description": "RFC9562 UUIDs", + "funding": [ + "https://github.com/sponsors/broofa", + "https://github.com/sponsors/ctavan" + ], + "commitlint": { + "extends": [ + "@commitlint/config-conventional" + ] + }, + "keywords": [ + "uuid", + "guid", + "rfc4122", + "rfc9562" + ], + "license": "MIT", + "bin": { + "uuid": "dist/bin/uuid" + }, + "sideEffects": false, + "main": "./dist/index.js", + "exports": { + ".": { + "node": { + "module": "./dist/esm-node/index.js", + "require": "./dist/index.js", + "import": "./wrapper.mjs" + }, + "browser": { + "import": "./dist/esm-browser/index.js", + "require": "./dist/commonjs-browser/index.js" + }, + "default": "./dist/esm-browser/index.js" + }, + "./package.json": "./package.json" + }, + "module": "./dist/esm-node/index.js", + "browser": { + "./dist/esm-node/index.js": "./dist/esm-browser/index.js", + "./dist/md5.js": "./dist/md5-browser.js", + "./dist/native.js": "./dist/native-browser.js", + "./dist/rng.js": "./dist/rng-browser.js", + "./dist/sha1.js": "./dist/sha1-browser.js" + }, + "files": [ + "CHANGELOG.md", + "CONTRIBUTING.md", + "LICENSE.md", + "README.md", + "dist", + "wrapper.mjs" + ], + "devDependencies": { + "@babel/cli": "7.24.6", + "@babel/core": "7.24.6", + "@babel/eslint-parser": "7.24.6", + "@babel/plugin-syntax-import-attributes": "7.24.6", + "@babel/preset-env": "7.24.6", + "@commitlint/cli": "19.3.0", + "@commitlint/config-conventional": "19.2.2", + "@wdio/browserstack-service": "7.16.10", + "@wdio/cli": "7.16.10", + "@wdio/jasmine-framework": "7.16.6", + "@wdio/local-runner": "7.16.10", + "@wdio/spec-reporter": "7.16.9", + "@wdio/static-server-service": "7.16.6", + "bundlewatch": "0.3.3", + "eslint": "9.4.0", + "eslint-plugin-prettier": "5.1.3", + "globals": "15.3.0", + "husky": "9.0.11", + "jest": "29.7.0", + "lint-staged": "15.2.5", + "neostandard": "0.5.1", + "npm-run-all": "4.1.5", + "optional-dev-dependency": "2.0.1", + "prettier": "3.3.0", + "random-seed": "0.3.0", + "runmd": "1.3.9", + "standard-version": "9.5.0" + }, + "optionalDevDependencies": { + "@wdio/browserstack-service": "7.16.10", + "@wdio/cli": "7.16.10", + "@wdio/jasmine-framework": "7.16.6", + "@wdio/local-runner": "7.16.10", + "@wdio/spec-reporter": "7.16.9", + "@wdio/static-server-service": "7.16.6" + }, + "scripts": { + "examples:browser:webpack:build": "cd examples/browser-webpack && npm install && npm run build", + "examples:browser:rollup:build": "cd examples/browser-rollup && npm install && npm run build", + "examples:node:commonjs:test": "cd examples/node-commonjs && npm install && npm test", + "examples:node:esmodules:test": "cd examples/node-esmodules && npm install && npm test", + "examples:node:jest:test": "cd examples/node-jest && npm install && npm test", + "prepare": "husky install", + "lint": "npm run eslint:check && npm run prettier:check", + "eslint:check": "eslint src/ test/ examples/ *.js", + "eslint:fix": "eslint --fix src/ test/ examples/ *.js", + "pretest": "npm run build", + "test": "BABEL_ENV=commonjsNode node --throw-deprecation node_modules/.bin/jest test/unit/", + "test:matching": "BABEL_ENV=commonjsNode node --throw-deprecation node_modules/.bin/jest test/unit/ -t", + "pretest:browser": "optional-dev-dependency && npm run build && npm-run-all --parallel examples:browser:**", + "test:browser": "wdio run ./wdio.conf.js", + "pretest:node": "npm run build", + "test:node": "npm-run-all --parallel examples:node:**", + "test:pack": "./scripts/testpack.sh", + "pretest:benchmark": "npm run build", + "test:benchmark": "cd examples/benchmark && HUSKY=0 npm install && npm test", + "prettier:check": "prettier --check .", + "prettier:fix": "prettier --write .", + "bundlewatch": "npm run pretest:browser && bundlewatch --config bundlewatch.config.json", + "md": "runmd --watch --output=README.md README_js.md", + "docs": "npm run build && npx runmd --output=README.md README_js.md", + "docs:diff": "npm run docs && git diff --quiet README.md", + "build": "./scripts/build.sh", + "prepack": "npm run build", + "release": "standard-version --no-verify" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/uuidjs/uuid.git" + }, + "lint-staged": { + "*": [ + "prettier --no-error-on-unmatched-pattern --write" + ], + "*.{js,jsx}": [ + "eslint --no-error-on-unmatched-pattern --fix" + ] + }, + "standard-version": { + "scripts": { + "postchangelog": "prettier --write CHANGELOG.md" + } + }, + "packageManager": "npm@10.8.1+sha256.b8807aebb9656758e2872fa6e7c564b506aa2faa9297439a478d471d2fe32483" +} diff --git a/week-3/02-course-app-easy/node_modules/uuid/wrapper.mjs b/week-3/02-course-app-easy/node_modules/uuid/wrapper.mjs new file mode 100644 index 000000000..fba64f6eb --- /dev/null +++ b/week-3/02-course-app-easy/node_modules/uuid/wrapper.mjs @@ -0,0 +1,15 @@ +import uuid from './dist/index.js'; +export const v1 = uuid.v1; +export const v1ToV6 = uuid.v1ToV6; +export const v3 = uuid.v3; +export const v4 = uuid.v4; +export const v5 = uuid.v5; +export const v6 = uuid.v6; +export const v6ToV1 = uuid.v6ToV1; +export const v7 = uuid.v7; +export const NIL = uuid.NIL; +export const MAX = uuid.MAX; +export const version = uuid.version; +export const validate = uuid.validate; +export const stringify = uuid.stringify; +export const parse = uuid.parse; diff --git a/week-3/02-course-app-easy/package-lock.json b/week-3/02-course-app-easy/package-lock.json new file mode 100644 index 000000000..5f8bf596d --- /dev/null +++ b/week-3/02-course-app-easy/package-lock.json @@ -0,0 +1,152 @@ +{ + "name": "02-course-app-easy", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "02-course-app-easy", + "version": "1.0.0", + "license": "ISC", + "dependencies": { + "jsonwebtoken": "^9.0.2", + "uuid": "^10.0.0" + } + }, + "node_modules/buffer-equal-constant-time": { + "version": 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"resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz", + "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==", + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ] + }, + "node_modules/semver": { + "version": "7.6.2", + "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.2.tgz", + "integrity": "sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==", + "bin": { + "semver": "bin/semver.js" + }, + "engines": { + "node": ">=10" + } + }, + "node_modules/uuid": { + "version": "10.0.0", + "resolved": "https://registry.npmjs.org/uuid/-/uuid-10.0.0.tgz", + "integrity": "sha512-8XkAphELsDnEGrDxUOHB3RGvXz6TeuYSGEZBOjtTtPm2lwhGBjLgOzLHB63IUWfBpNucQjND6d3AOudO+H3RWQ==", + "funding": [ + "https://github.com/sponsors/broofa", + "https://github.com/sponsors/ctavan" + ], + "bin": { + "uuid": "dist/bin/uuid" + } + } + } +} diff --git a/week-3/02-course-app-easy/package.json b/week-3/02-course-app-easy/package.json index ef6ffdc36..d17e332d4 100644 --- a/week-3/02-course-app-easy/package.json +++ b/week-3/02-course-app-easy/package.json @@ -3,10 +3,15 @@ "version": "1.0.0", "description": "### Description 1. Admins should be able to sign up 2. Admins should be able to create courses 1. Course has a title, description, price, and image link 2. Course should be able to be published or unpublished 3. Admins should be able to edit courses 4. Users should be able to sign up 5. Users should be able to purchase courses 6. Users should be able to view purchased courses 7. Users should be able to view all courses", "main": "index.js", + "type": "module", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "keywords": [], "author": "", - "license": "ISC" + "license": "ISC", + "dependencies": { + "jsonwebtoken": "^9.0.2", + "uuid": "^10.0.0" + } } diff --git a/week-3/04-course-app-hard/frontend/admin/admin.html b/week-3/04-course-app-hard/frontend/admin/admin.html new file mode 100644 index 000000000..eb8ea1397 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/admin/admin.html @@ -0,0 +1,36 @@ + + + + + + + + Admin + + + + +

Admin Auth

+
+ + + + + + +
+ +
+ + + + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/admin/admin.js b/week-3/04-course-app-hard/frontend/admin/admin.js new file mode 100644 index 000000000..55d965e95 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/admin/admin.js @@ -0,0 +1,93 @@ +const _BASE_URL = "http://localhost:3000"; +console.log("Bhaiii"); + +async function onSignUp() { + let adminName = document.getElementById("AdmName").value; + let adminPassword = document.getElementById("AdmPassword").value; + // console.log(adminName); + // console.log(adminPassword); + + let uploadJson = JSON.stringify( + { + "adminName": adminName, + "adminPassword": adminPassword + } + ); + let admSignUpRes = await fetch(_BASE_URL + "/admin/signup", { + method: "POST", body: uploadJson, headers: { + "Content-Type": "application/json" + } + }) + // then((value) => { + + // console.log(admSignUpRes.type); + // }); + // admSignUpRes.json().then(ele => { + // console.log(ele.message); + // }) + let data = await admSignUpRes.json(); + let parentId = document.getElementById("parent"); + parentId.innerHTML = ""; + let child = document.createElement("p"); + if (data.statusCode == 1) { + child.innerHTML = "Account Created"; + localStorage.setItem("token", data.token); + // window.location.href = "./admin_course/admin_course.html" + } else { + child.innerHTML = data.message; + // window.location.href = "./admin/admin.html" + setTimeout(() => { + child.innerHTML = ""; + + }, 2000); + } + parentId.append(child); + +} + + + +async function onSignIn() { + let adminName = document.getElementById("AdmName").value; + let adminPassword = document.getElementById("AdmPassword").value; + // console.log(adminName); + // console.log(adminPassword); + + let uploadJson = JSON.stringify( + { + "adminName": adminName, + "adminPassword": adminPassword + } + ); + let admSignUpRes = await fetch(_BASE_URL + "/admin/login", { + method: "POST", body: uploadJson, headers: { + "Content-Type": "application/json" + } + }) + // then((value) => { + + // console.log(admSignUpRes.type); + // }); + // admSignUpRes.json().then(ele => { + // console.log(ele.message); + // }) + let data = await admSignUpRes.json(); + let parentId = document.getElementById("parent"); + parentId.innerHTML = ""; + let child = document.createElement("p"); + if (data.statusCode == 1) { + child.innerHTML = "You are now signed in to your account."; + localStorage.setItem("token", data.token); + // window.location.href = "./admin_course/admin_course.html" + } else { + child.innerHTML = data.message; + // window.location.href = "./admin/admin.html" + setTimeout(() => { + child.innerHTML = ""; + + }, 2000); + } + parentId.append(child); + +} + diff --git a/week-3/04-course-app-hard/frontend/admin/admin_add_course/admin_add_course.html b/week-3/04-course-app-hard/frontend/admin/admin_add_course/admin_add_course.html new file mode 100644 index 000000000..61b6dbf66 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/admin/admin_add_course/admin_add_course.html @@ -0,0 +1,27 @@ + + + + + + + Add Course + + + + +

Add Course

+
+ + + + + + + + +
+
+ + + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/admin/admin_add_course/admin_add_course.js b/week-3/04-course-app-hard/frontend/admin/admin_add_course/admin_add_course.js new file mode 100644 index 000000000..eed38ec8d --- /dev/null +++ b/week-3/04-course-app-hard/frontend/admin/admin_add_course/admin_add_course.js @@ -0,0 +1,39 @@ +const token = localStorage.getItem("token"); +const _BASE_URL = "http://localhost:3000"; + +let content = document.getElementById("content"); +let loadingChild = document.createElement("p"); +loadingChild.innerHTML = ""; +content.appendChild(loadingChild); + +async function onCourseCreatedPressed() { + loadingChild.innerHTML = "Loading..."; + + let courseName = document.getElementById("courseNameInput").value; + let courseDetails = document.getElementById("courseDetailsInput").value; + let amount = document.getElementById("amountInput").value; + + + let rendData = { + "courseName": courseName, + "courseDetails": courseDetails, + "amount": amount, + } + let res = await fetch(_BASE_URL + "/admin/courses", { + method: "POST", + body: JSON.stringify(rendData), + headers: { + "Content-Type": "application/json", + "token": token + } + }); + + + let resData = await res.json(); + if (resData.statusCode == 1) { + loadingChild.innerHTML = resData.message; + setTimeout(() => { + loadingChild.innerHTML = ""; + }, 2000) + } +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/admin/admin_course/admin_course.html b/week-3/04-course-app-hard/frontend/admin/admin_course/admin_course.html new file mode 100644 index 000000000..f37be7a12 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/admin/admin_course/admin_course.html @@ -0,0 +1,21 @@ + + + + + + + + My Cources + + + + +

My Cources

+
+ + + + + + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/admin/admin_course/admin_course.js b/week-3/04-course-app-hard/frontend/admin/admin_course/admin_course.js new file mode 100644 index 000000000..81bf1dfac --- /dev/null +++ b/week-3/04-course-app-hard/frontend/admin/admin_course/admin_course.js @@ -0,0 +1,47 @@ +let adminToken = localStorage.getItem("token"); +const _BASE_URL = "http://localhost:3000"; + +let divContent = document.getElementById("mainContent"); +let loadingChild = document.createElement("p"); +loadingChild.innerHTML = "Loading..."; +divContent.appendChild(loadingChild); +getUserData(); +async function getUserData() { + let res = await fetch(_BASE_URL + "/admin/courses", { + method: "GET", + headers: { + "Content-Type": "application/json", + "token": adminToken + } + }); + console.log(res); + let courses = await res.json(); + console.log(courses); + + if (courses.statusCode == 1) { + if (courses.data.length > 0) { + divContent.innerHTML = ""; + + for (let i = 0; i < courses.data.length; i++) { + let childBr = document.createElement("br"); + let childName = document.createElement("p"); + let childDetails = document.createElement("p"); + let childamount = document.createElement("p"); + childName.innerHTML = ("Name :" + courses.data[i].courseName); + childDetails.innerHTML = ("Details :" + courses.data[i].courseDetails); + childamount.innerHTML = ("Rs :" + courses.data[i].amount); + divContent.appendChild(childName); + divContent.appendChild(childDetails); + divContent.appendChild(childamount); + divContent.appendChild(childBr); + divContent.appendChild(childBr); + } + } else { + loadingChild.innerHTML = "No Course Fould"; + } + + } else { + loadingChild.innerHTML = "No course Found"; + } + +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/main.css b/week-3/04-course-app-hard/frontend/main.css new file mode 100644 index 000000000..7cde41daf --- /dev/null +++ b/week-3/04-course-app-hard/frontend/main.css @@ -0,0 +1,101 @@ +* { + /* color: antiquewhite; */ +} + +body { + /* background-color: grey; */ + background: -webkit-linear-gradient(right, #2254df, #5bb5f0); + +} + +.card { + background: #fbfbfb; + border-radius: 8px; + /* box-shadow: 1px 2px 8px rgba(0, 0, 0, 0.65); */ + height: 410px; + margin: 6rem auto 8.1rem auto; + width: 329px; + padding: 10px; + display: flex; + justify-content: center; + align-items: center; + flex-direction: column; +} + +.signUp_button, +.signIn_button, +.admin_add_course, +button { + width: 200px; + height: 40px; + border-radius: 10px; + transition: .3; + margin-top: 30px; + background-color: lightcyan; + +} + +/* .nameInput, +.passInput */ +input { + /* width: 200px; + height: 40px; */ + padding: 10px; + margin-top: 10px; + margin-bottom: 15px; + + border-radius: 10px; + border: 5px; + border-color: black; + background-color: lightcyan; + display: flex; + +} + +.boxx { + border-width: 5px; + padding-left: 50%; + margin-left: 50px; + margin-top: 500px; + + +} + +nav { + /* background: lightblue; */ + width: 500px; + height: 70px; + font-size: large; + /* justify-content: space-between; */ +} + +/* .navBar { + height: 50px; + background-color: aquamarine; +} */ + +a { + /* padding: 18px; */ + padding-right: 18px; + padding-left: 18px; + padding-top: 10px; + padding-bottom: 10px; + + + text-decoration: none; + /* height: 10px; */ + border-radius: 20px; + background-color: lightcyan; + +} + +.navBar { + padding-top: 23px; + padding-left: 20px; + + /* width: 500px; + + height: 500px; + background-color: antiquewhite; + justify-content: space-between; */ +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/main.html b/week-3/04-course-app-hard/frontend/main.html new file mode 100644 index 000000000..e0a75784d --- /dev/null +++ b/week-3/04-course-app-hard/frontend/main.html @@ -0,0 +1,28 @@ + + + + + + + Courses + + + + + + + + + + + +
+ + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/main.js b/week-3/04-course-app-hard/frontend/main.js new file mode 100644 index 000000000..218f1a3fd --- /dev/null +++ b/week-3/04-course-app-hard/frontend/main.js @@ -0,0 +1,87 @@ +// const _BASE_URL = "http://localhost:3000"; +// console.log("Bhaiii"); + +// async function onSignUp() { +// let adminName = document.getElementById("AdmName").value; +// let adminPassword = document.getElementById("AdmPassword").value; +// // console.log(adminName); +// // console.log(adminPassword); + +// let uploadJson = JSON.stringify( +// { +// "adminName": adminName, +// "adminPassword": adminPassword +// } +// ); +// let admSignUpRes = await fetch(_BASE_URL + "/admin/signup", { +// method: "POST", body: uploadJson, headers: { +// "Content-Type": "application/json" +// } +// }) +// // then((value) => { + +// // console.log(admSignUpRes.type); +// // }); +// // admSignUpRes.json().then(ele => { +// // console.log(ele.message); +// // }) +// let data = await admSignUpRes.json(); +// let parentId = document.getElementById("parent"); +// parentId.innerHTML = ""; +// let child = document.createElement("p"); +// if (data.statusCode == 1) { +// child.innerHTML = "Account Created"; +// localStorage.setItem("token", data.token); +// window.location.href = "./admin/admin.html" +// } else { +// child.innerHTML = data.message; +// // window.location.href = "./admin/admin.html" + +// } +// parentId.append(child); + +// } + + + +// async function onSignIn() { +// let adminName = document.getElementById("AdmName").value; +// let adminPassword = document.getElementById("AdmPassword").value; +// // console.log(adminName); +// // console.log(adminPassword); + +// let uploadJson = JSON.stringify( +// { +// "adminName": adminName, +// "adminPassword": adminPassword +// } +// ); +// let admSignUpRes = await fetch(_BASE_URL + "/admin/login", { +// method: "POST", body: uploadJson, headers: { +// "Content-Type": "application/json" +// } +// }) +// // then((value) => { + +// // console.log(admSignUpRes.type); +// // }); +// // admSignUpRes.json().then(ele => { +// // console.log(ele.message); +// // }) +// let data = await admSignUpRes.json(); +// let parentId = document.getElementById("parent"); +// parentId.innerHTML = ""; +// let child = document.createElement("p"); +// if (data.statusCode == 1) { +// child.innerHTML = "Account Created"; +// localStorage.setItem("token", data.token); +// window.location.href = "./admin/admin.html" +// } else { +// child.innerHTML = data.message; +// // window.location.href = "./admin/admin.html" + +// } +// parentId.append(child); + +// } + diff --git a/week-3/04-course-app-hard/frontend/user/all_courses/all_courses.html b/week-3/04-course-app-hard/frontend/user/all_courses/all_courses.html new file mode 100644 index 000000000..6a6d2733c --- /dev/null +++ b/week-3/04-course-app-hard/frontend/user/all_courses/all_courses.html @@ -0,0 +1,18 @@ + + + + + + + + Document + + + +

All Courses

+
+ + + + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/user/all_courses/all_courses.js b/week-3/04-course-app-hard/frontend/user/all_courses/all_courses.js new file mode 100644 index 000000000..ac71f87ae --- /dev/null +++ b/week-3/04-course-app-hard/frontend/user/all_courses/all_courses.js @@ -0,0 +1,81 @@ +const token = localStorage.getItem("token"); +const _BASE_URL = "http://localhost:3000"; + +let content = document.getElementById("content"); +let loadingChild = document.createElement("p"); +loadingChild.innerHTML = "Loading ..."; +content.appendChild(loadingChild); +getAllCourses(); + +async function buyCourse(courseId) { + loadingChild.innerHTML = ""; + + console.log(_BASE_URL + "/users/courses/" + courseId); + let res = await fetch(_BASE_URL + "/users/courses/" + courseId, { + method: "POST", + headers: { + "Content-type": "application/json", + "token": token + } + }); + console.log(res); + let resJson1 = await res.json(); + + if (resJson1.statusCode == 1) { + setTimeout(() => { + loadingChild.innerHTML = ""; + }, 2000); + } else { + loadingChild.innerHTML = resJson1.message; + setTimeout(() => { + loadingChild.innerHTML = ""; + }, 2000); + } +} +async function getAllCourses() { + let res = await fetch(_BASE_URL + "/users/courses", { + method: "GET", + headers: { + "Content-Type": "application/json", + "token": token + } + }); + let resJson = await res.json(); + if (resJson.statusCode == 1) { + loadingChild.innerHTML = ""; + for (let i = 0; i < resJson.data.length; i++) { + console.log(resJson.data[i]._id); + let brChild = document.createElement("br"); + let nameChild = document.createElement("p"); + let detailsChild = document.createElement("p"); + let amountChild = document.createElement("p"); + let buyButton = document.createElement("button"); + buyButton.innerHTML = "Buy Now" + // buyButton.setAttribute("onclick", "buyCourse(resJson.data[i]._id);"); + // button.setAttribute("name", "Buy Now"); + buyButton.onclick = function () { + buyCourse(resJson.data[i]._id); + }; + nameChild.innerHTML = resJson.data[i].courseName; + detailsChild.innerHTML = resJson.data[i].courseDetails; + amountChild.innerHTML = resJson.data[i].amount; + + content.appendChild(nameChild); + content.appendChild(detailsChild); + content.appendChild(amountChild); + content.appendChild(buyButton); + + content.appendChild(brChild); + content.appendChild(brChild); + content.appendChild(brChild); + + } + + } else { + loadingChild.innerHTML = resJson.message; + // setTimeout(() => { + // loadingChild.innerHTML = ""; + // }, 2000); + } + +} diff --git a/week-3/04-course-app-hard/frontend/user/purchsed_courses/purchsed_courses.html b/week-3/04-course-app-hard/frontend/user/purchsed_courses/purchsed_courses.html new file mode 100644 index 000000000..d44f4d609 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/user/purchsed_courses/purchsed_courses.html @@ -0,0 +1,19 @@ + + + + + + + + + Purchsed Courses + + + +

My Purchsed Courses

+
+ + + + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/user/purchsed_courses/purchsed_courses.js b/week-3/04-course-app-hard/frontend/user/purchsed_courses/purchsed_courses.js new file mode 100644 index 000000000..22d5bef60 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/user/purchsed_courses/purchsed_courses.js @@ -0,0 +1,52 @@ +const token = localStorage.getItem("token"); +const _BASE_URL = "http://localhost:3000"; + +let content = document.getElementById("content"); +let loadingChild = document.createElement("p"); +loadingChild.innerHTML = "Loading..."; +content.appendChild(loadingChild); +purchsed_courses(); +async function purchsed_courses() { + let purchsedCourseRes = await fetch(_BASE_URL + "/users/purchasedCourses", { + method: "GET", + headers: { + "Content-Type": "application/json", + "token": token + } + }); + + let purchasedCoursesJson = await purchsedCourseRes.json(); + if (purchasedCoursesJson.statusCode == 1) { + loadingChild.innerHTML = ""; + console.log(purchasedCoursesJson.data.length); + + for (let i = 0; i < purchasedCoursesJson.data.length; i++) { + let brChild = document.createElement("br"); + + let nameChild = document.createElement("p"); + let detailsChild = document.createElement("p"); + let amountChild = document.createElement("p"); + nameChild.innerHTML = "Name : " + purchasedCoursesJson.data[i].courseName; + detailsChild.innerHTML = "Details : " + purchasedCoursesJson.data[i].courseDetails; + amountChild.innerHTML = "Rs : " + purchasedCoursesJson.data[i].amount; + + content.appendChild(nameChild); + content.appendChild(detailsChild); + content.appendChild(amountChild); + content.appendChild(brChild); + content.appendChild(brChild); + content.appendChild(brChild); + content.appendChild(brChild); + + + + + } + + } else { + loadingChild.innerHTML = purchasedCoursesJson.message; + // setTimeout(() => { + // loadingChild.innerHTML = ""; + // }, 2000) + } +} diff --git a/week-3/04-course-app-hard/frontend/user/user.html b/week-3/04-course-app-hard/frontend/user/user.html new file mode 100644 index 000000000..121ae5045 --- /dev/null +++ b/week-3/04-course-app-hard/frontend/user/user.html @@ -0,0 +1,31 @@ + + + + + + + + User + + + + +

Welcome User

+
+ + + + + + +
+
+ + + + \ No newline at end of file diff --git a/week-3/04-course-app-hard/frontend/user/user.js b/week-3/04-course-app-hard/frontend/user/user.js new file mode 100644 index 000000000..2f624f56c --- /dev/null +++ b/week-3/04-course-app-hard/frontend/user/user.js @@ -0,0 +1,63 @@ +let content = document.getElementById("content"); +let loadingChild = document.createElement("p"); +loadingChild.innerHTML = "Loading ..."; +const _BASE_URL = "http://localhost:3000"; + + +async function onSignUp() { + content.appendChild(loadingChild); + let userName = document.getElementById("UrsName").value; + let userPassword = document.getElementById("UrsPassword").value; + let sendJson = { + "userName": userName, + "userPassword": userPassword + } + let resAllCourses = await fetch(_BASE_URL + "/users/signup", { + method: "POST", body: JSON.stringify(sendJson), + headers: { + "Content-Type": "application/json" + } + + }); + let resJson = await resAllCourses.json(); + if (resJson.statusCode == 1) { + localStorage.setItem("token", resJson.token); + loadingChild.innerHTML = "Account SignIn Successfully"; + // window.location.href = ("./all_courses/all_courses.html"); + } else { + loadingChild.innerHTML = resJson.message; + setTimeout(() => { + loadingChild.innerHTML = ""; + + }, 2000); + } +} +async function onSignIn() { + content.appendChild(loadingChild); + + let userName = document.getElementById("UrsName").value; + let userPassword = document.getElementById("UrsPassword").value; + let sendJson = { + "userName": userName, + "userPassword": userPassword + } + let resAllCourses = await fetch(_BASE_URL + "/users/login", { + method: "POST", body: JSON.stringify(sendJson), + headers: { + "Content-Type": "application/json" + } + + }); + let resJson = await resAllCourses.json(); + if (resJson.statusCode == 1) { + localStorage.setItem("token", resJson.token); + loadingChild.innerHTML = "You are now signed in to your account."; + // window.location.href = ("./all_courses/all_courses.html"); + } else { + loadingChild.innerHTML = resJson.message; + setTimeout(() => { + loadingChild.innerHTML = ""; + + }, 2000); + } +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/index.js b/week-3/04-course-app-hard/index.js index 32fff61e9..a06e604fc 100644 --- a/week-3/04-course-app-hard/index.js +++ b/week-3/04-course-app-hard/index.js @@ -1,52 +1,280 @@ -const express = require('express'); +// const express = require('express'); +import express from "express"; +import body_parser from "body-parser"; +import mongoose from "mongoose"; +import { v4 as uuid4 } from "uuid"; +import jwt from "jsonwebtoken"; +import cors from "cors"; const app = express(); +app.use(cors()); +app.use(body_parser.json()); -app.use(express.json()); +const JWT_SECRET_TOKEN = "M@n@oDemO"; +// let ADMINS = []; +// let USERS = []; +// let COURSES = []; -let ADMINS = []; -let USERS = []; -let COURSES = []; +function generateToken(data) { + return jwt.sign(data, JWT_SECRET_TOKEN,); +} +function verifyToken(data) { + return jwt.verify(data, JWT_SECRET_TOKEN); +} + +///First define the schema +const adminSchema = new mongoose.Schema({ + // id: String, + adminName: String, + adminPassword: String, + courses: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Course' }], + amount: Number, +}); + +const userSchema = new mongoose.Schema({ + // id: String, + userName: String, + userPassword: String, + courses: [{ type: mongoose.Schema.Types.ObjectId, ref: "Course" }] +}) + +const courseSchema = new mongoose.Schema({ + // id: String, + courseName: String, + courseDetails: String, + authorId: String, + amount: Number +}); + +///Second define models +const User = mongoose.model("User", userSchema); +const Admin = mongoose.model("Admin", adminSchema); +const Course = mongoose.model("Course", courseSchema); + +async function connectMongoDb() { + console.log("mongodb://localhost:27017/courses"); + ///Third Connection with DB + await mongoose.connect("mongodb://127.0.0.1:27017/courses", { + // useNewUrlParser: true, + // useUnifiedTopology: true + }); +} +connectMongoDb(); // Admin routes -app.post('/admin/signup', (req, res) => { - // logic to sign up admin +app.post('/admin/signup', async (req, res) => { + // logic to sign up admin\ + + const { adminName, adminPassword } = req.body; + if ((adminName && adminName.length <= 0) || (adminPassword && adminPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + + var isAlreadyAdmin = await Admin.find({ adminName, adminPassword }); + console.log(isAlreadyAdmin); + if (isAlreadyAdmin.length > 0) { + res.status(403).send({ statusCode: 0, message: "User Already Present" }); + return; + } else { + const newAdmin = new Admin({ + id: uuid4(), + adminName: adminName, + adminPassword: adminPassword, + courses: [], + amount: 0 + }); + newAdmin.save(); + res.send({ statusCode: 1, id: newAdmin.id, token: generateToken({ adminName: adminName, adminPassword: adminPassword }) }); + } }); -app.post('/admin/login', (req, res) => { +app.post('/admin/login', async (req, res) => { // logic to log in admin + const { adminName, adminPassword } = req.body; + const isUserLogin = await Admin.find({ adminName, adminPassword }); + if (isUserLogin.length > 0) { + res.send({ statusCode: 1, data: isUserLogin[0], token: generateToken({ adminName: adminName, adminPassword: adminPassword }) }); + } else { + res.status(403).send({ statusCode: 0, message: "User Details Invalid" }) + + } + }); -app.post('/admin/courses', (req, res) => { +const adminMidddleware = async (req, res, next) => { + const token = req.headers.token; + const { adminName, adminPassword } = verifyToken(token); + + const isUserValid = await Admin.find({ adminName, adminPassword }); + if (isUserValid.length > 0) { + req.user = isUserValid[0]; + next(); + } else { + res.status(403).send({ statusCode: 0, message: "Unauthorized" }); + } +}; +app.post('/admin/courses', adminMidddleware, async (req, res) => { // logic to create a course + const { courseName, courseDetails, amount } = req.body; + const newCourse = new Course({ + courseName: courseName, + courseDetails: courseDetails, + amount: amount, + authorId: req.user._id + }); + const courseId = await newCourse.save(); + req.user.courses.push(newCourse); + await Admin.findByIdAndUpdate(req.user._id, req.user); + res.send({ statusCode: 1, message: "Course Added" }); }); -app.put('/admin/courses/:courseId', (req, res) => { +app.put('/admin/courses/:courseId', adminMidddleware, async (req, res) => { // logic to edit a course + const courseId = req.params.courseId; + const { courseName, courseDetails } = req.body; + const updatedCourse = await Course.findByIdAndUpdate({ _id: courseId }, { courseName: courseName, courseDetails: courseDetails }, { new: true }); + res.send({ statusCode: 1, data: updatedCourse }) + }); -app.get('/admin/courses', (req, res) => { +app.get('/admin/courses', adminMidddleware, async (req, res) => { + let allCourse1 = []; // logic to get all courses + // const allCourseId = req.user; + // console.log(allCourseId.length); + // const allCourse = await Promise.all( + // allCourseId.forEach(async (singleCourseId) => { + + let adminCourses = await Course.find({ authorId: req.user._id }); + // console.log(singleCourseId); + + // // if (ele) { + + // allCourse1.push(allCourse); + // // } + // return allCourse1; + // })); + + + + res.send({ statusCode: 1, data: adminCourses }); + + + }); // User routes -app.post('/users/signup', (req, res) => { +app.post('/users/signup', async (req, res) => { // logic to sign up user + const { userName, userPassword } = req.body; + if ((userName && userName.length <= 0) || (userPassword && userPassword.length <= 0)) { + res.status(400).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + var isUserPresent = await User.findOne({ userName }); + if (isUserPresent) { + res.send({ statusCode: 0, message: "User Data Already Present" }); + } else { + let newUser = new User({ + userName: userName, + userPassword: userPassword, + courses: [] + }); + let userId = await newUser.save(); + + res.send({ + statusCode: 1, message: "User Account Created Successfully", id: userId._id, token: generateToken({ + userName: userName, + userPassword: userPassword + }) + }); + } }); -app.post('/users/login', (req, res) => { +app.post('/users/login', async (req, res) => { // logic to log in user + const { userName, userPassword } = req.body; + if ((userName && userName.length <= 0) || (userName && userName.length <= 0)) { + res.status(403).send({ statusCode: 0, message: "One or more fields are Empty" }); + return; + } + + let isUserPresent = await User.findOne({ userName, userPassword }); + if (isUserPresent) { + res.send({ + statusCode: 1, data: isUserPresent, token: generateToken({ + userName: userName, + userPassword: userPassword + }) + }) + } else { + res.status(403).send({ statusCode: 0, message: "User Details Invalid" }); + } }); -app.get('/users/courses', (req, res) => { +const userMiddleware = async (req, res, next) => { + const token = req.headers.token; + const { userName, userPassword } = verifyToken(token); + let user = await User.findOne({ userName, userPassword }); + if (user) { + req.user = user; + next(); + } else { + res.status(403).send({ statusCode: 0, message: "Unauthorized" }) + } +}; + +app.get('/users/courses', userMiddleware,async (req, res) => { // logic to list all courses + let allCourses = await Course.find({}); + if (allCourses.length > 0) { + res.send({ statusCode: 1, data: allCourses }); + } else { + res.send({ statusCode: 0, message: "No Courses Found" }); + } + }); -app.post('/users/courses/:courseId', (req, res) => { +app.post('/users/courses/:courseId', userMiddleware, async (req, res) => { // logic to purchase a course + const courseId = req.params.courseId; + + let course = await Course.findOne({ _id: courseId }); + + + if (course) { + req.user.courses.push(course._id); + let isUserALredyPresent = User.findById({ _id: req.user._id }); + if (isUserALredyPresent) { + res.send({ statusCode: 0, message: "You have already bought the Course" }) + + return; + } + await User.findByIdAndUpdate({ _id: req.user._id }, req.user); + let adminData = await Admin.findOne({ _id: course.authorId }); + adminData.amount = (adminData.amount + course.amount); + // await Admin.findByIdAndUpdate({ _id: course.authorId }, { $set: { amount: (amount + course.amount) } }); + await Admin.findByIdAndUpdate({ _id: course.authorId }, adminData); + + res.send({ statusCode: 1, message: "Course Added Successfully" }); + } else { + res.send({ statusCode: 0, message: "Course Not Found" }) + } }); -app.get('/users/purchasedCourses', (req, res) => { +app.get('/users/purchasedCourses', userMiddleware, async (req, res) => { // logic to view purchased courses + let allPurchasedCourseId = req.user.courses; + if (allPurchasedCourseId.length > 0) { + let allPurchasedCourse = []; + for (let i = 0; i < allPurchasedCourseId.length; i++) { + let singleCourses = await Course.findById(allPurchasedCourseId[i]); + allPurchasedCourse.push(singleCourses); + } + res.send({ statusCode: 1, data: allPurchasedCourse }); + } else { + res.send({ statusCode: 0, message: "Buy Courses to see here" }) + } }); app.listen(3000, () => { diff --git a/week-3/04-course-app-hard/node_modules/.bin/semver b/week-3/04-course-app-hard/node_modules/.bin/semver new file mode 100644 index 000000000..77443e787 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/.bin/semver @@ -0,0 +1,12 @@ +#!/bin/sh +basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')") + +case `uname` in + *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;; +esac + +if [ -x "$basedir/node" ]; then + exec "$basedir/node" "$basedir/../semver/bin/semver.js" "$@" +else + exec node "$basedir/../semver/bin/semver.js" "$@" +fi diff --git a/week-3/04-course-app-hard/node_modules/.bin/semver.cmd b/week-3/04-course-app-hard/node_modules/.bin/semver.cmd new file mode 100644 index 000000000..9913fa9d0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/.bin/semver.cmd @@ -0,0 +1,17 @@ +@ECHO off +GOTO start +:find_dp0 +SET dp0=%~dp0 +EXIT /b +:start +SETLOCAL +CALL :find_dp0 + +IF EXIST "%dp0%\node.exe" ( + SET "_prog=%dp0%\node.exe" +) ELSE ( + SET "_prog=node" + SET PATHEXT=%PATHEXT:;.JS;=;% +) + +endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\semver\bin\semver.js" %* diff --git a/week-3/04-course-app-hard/node_modules/.bin/semver.ps1 b/week-3/04-course-app-hard/node_modules/.bin/semver.ps1 new file mode 100644 index 000000000..314717ad4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/.bin/semver.ps1 @@ -0,0 +1,28 @@ +#!/usr/bin/env pwsh +$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent + +$exe="" +if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) { + # Fix case when both the Windows and Linux builds of Node + # are installed in the same directory + $exe=".exe" +} +$ret=0 +if (Test-Path "$basedir/node$exe") { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "$basedir/node$exe" "$basedir/../semver/bin/semver.js" $args + } else { + & "$basedir/node$exe" "$basedir/../semver/bin/semver.js" $args + } + $ret=$LASTEXITCODE +} else { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "node$exe" "$basedir/../semver/bin/semver.js" $args + } else { + & "node$exe" "$basedir/../semver/bin/semver.js" $args + } + $ret=$LASTEXITCODE +} +exit $ret diff --git a/week-3/04-course-app-hard/node_modules/.bin/uuid b/week-3/04-course-app-hard/node_modules/.bin/uuid new file mode 100644 index 000000000..c3ec0035f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/.bin/uuid @@ -0,0 +1,12 @@ +#!/bin/sh +basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')") + +case `uname` in + *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;; +esac + +if [ -x "$basedir/node" ]; then + exec "$basedir/node" "$basedir/../uuid/dist/bin/uuid" "$@" +else + exec node "$basedir/../uuid/dist/bin/uuid" "$@" +fi diff --git a/week-3/04-course-app-hard/node_modules/.bin/uuid.cmd b/week-3/04-course-app-hard/node_modules/.bin/uuid.cmd new file mode 100644 index 000000000..0f2376eaf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/.bin/uuid.cmd @@ -0,0 +1,17 @@ +@ECHO off +GOTO start +:find_dp0 +SET dp0=%~dp0 +EXIT /b +:start +SETLOCAL +CALL :find_dp0 + +IF EXIST "%dp0%\node.exe" ( + SET "_prog=%dp0%\node.exe" +) ELSE ( + SET "_prog=node" + SET PATHEXT=%PATHEXT:;.JS;=;% +) + +endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\uuid\dist\bin\uuid" %* diff --git a/week-3/04-course-app-hard/node_modules/.bin/uuid.ps1 b/week-3/04-course-app-hard/node_modules/.bin/uuid.ps1 new file mode 100644 index 000000000..78046284b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/.bin/uuid.ps1 @@ -0,0 +1,28 @@ +#!/usr/bin/env pwsh +$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent + +$exe="" +if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) { + # Fix case when both the Windows and Linux builds of Node + # are installed in the same directory + $exe=".exe" +} +$ret=0 +if (Test-Path "$basedir/node$exe") { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "$basedir/node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } else { + & "$basedir/node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } + $ret=$LASTEXITCODE +} else { + # Support pipeline input + if ($MyInvocation.ExpectingInput) { + $input | & "node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } else { + & "node$exe" "$basedir/../uuid/dist/bin/uuid" $args + } + $ret=$LASTEXITCODE +} +exit $ret diff --git a/week-3/04-course-app-hard/node_modules/.package-lock.json b/week-3/04-course-app-hard/node_modules/.package-lock.json 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(the "Software"), to deal in the Software without +restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following +conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/.esm-wrapper.mjs b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/.esm-wrapper.mjs new file mode 100644 index 000000000..0b46bfa63 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/.esm-wrapper.mjs @@ -0,0 +1,4 @@ +import mod from "./node.js"; + +export default mod; +export const saslprep = mod.saslprep; diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.d.ts new file mode 100644 index 000000000..70a71a5a0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.d.ts @@ -0,0 +1,5 @@ +declare const saslprep: (args_0: string, args_1?: { + allowUnassigned?: boolean | undefined; +} | undefined) => string; +export = saslprep; +//# sourceMappingURL=browser.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.d.ts.map new file mode 100644 index 000000000..669fc6433 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"browser.d.ts","sourceRoot":"","sources":["../src/browser.ts"],"names":[],"mappings":"AAMA,QAAA,MAAM,QAAQ;;wBAAmC,CAAC;AAIlD,SAAS,QAAQ,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.js new file mode 100644 index 000000000..1bedd860e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.js @@ -0,0 +1,12 @@ +"use strict"; +var __importDefault = (this && this.__importDefault) || function (mod) { + return (mod && mod.__esModule) ? mod : { "default": mod }; +}; +const index_1 = __importDefault(require("./index")); +const memory_code_points_1 = require("./memory-code-points"); +const code_points_data_browser_1 = __importDefault(require("./code-points-data-browser")); +const codePoints = (0, memory_code_points_1.createMemoryCodePoints)(code_points_data_browser_1.default); +const saslprep = index_1.default.bind(null, codePoints); +Object.assign(saslprep, { saslprep, default: saslprep }); +module.exports = saslprep; +//# sourceMappingURL=browser.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.js.map new file mode 100644 index 000000000..40edf44be --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/browser.js.map @@ -0,0 +1 @@ +{"version":3,"file":"browser.js","sourceRoot":"","sources":["../src/browser.ts"],"names":[],"mappings":";;;;AAAA,oDAAgC;AAChC,6DAA8D;AAC9D,0FAA8C;AAE9C,MAAM,UAAU,GAAG,IAAA,2CAAsB,EAAC,kCAAI,CAAC,CAAC;AAEhD,MAAM,QAAQ,GAAG,eAAS,CAAC,IAAI,CAAC,IAAI,EAAE,UAAU,CAAC,CAAC;AAElD,MAAM,CAAC,MAAM,CAAC,QAAQ,EAAE,EAAE,QAAQ,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC,CAAC;AAEzD,iBAAS,QAAQ,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts new file mode 100644 index 000000000..f85af5b8b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts @@ -0,0 +1,4 @@ +/// +declare const data: Buffer; +export default data; +//# sourceMappingURL=code-points-data-browser.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts.map new file mode 100644 index 000000000..617b217b8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"code-points-data-browser.d.ts","sourceRoot":"","sources":["../src/code-points-data-browser.ts"],"names":[],"mappings":";AAAA,QAAA,MAAM,IAAI,QAGT,CAAC;AACF,eAAe,IAAI,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js new file mode 100644 index 000000000..5ea963551 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data-browser.js @@ -0,0 +1,5 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +const data = 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000000000..cc908ec59 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts @@ -0,0 +1,4 @@ +/// +declare const _default: Buffer; +export default _default; +//# sourceMappingURL=code-points-data.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts.map new file mode 100644 index 000000000..772442e0b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"code-points-data.d.ts","sourceRoot":"","sources":["../src/code-points-data.ts"],"names":[],"mappings":";;AAEA,wBAKE"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.js new file mode 100644 index 000000000..6af9a89b9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.js @@ -0,0 +1,5 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +const zlib_1 = require("zlib"); +exports.default = (0, zlib_1.gunzipSync)(Buffer.from('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', 'base64')); +//# sourceMappingURL=code-points-data.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.js.map new file mode 100644 index 000000000..1da1c5500 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-data.js.map @@ -0,0 +1 @@ +{"version":3,"file":"code-points-data.js","sourceRoot":"","sources":["../src/code-points-data.ts"],"names":[],"mappings":";;AAAA,+BAAkC;AAElC,kBAAe,IAAA,iBAAU,EACvB,MAAM,CAAC,IAAI,CACT,knFAAknF,EAClnF,QAAQ,CACT,CACF,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts new file mode 100644 index 000000000..36b6c5650 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts @@ -0,0 +1,7 @@ +export declare const unassigned_code_points: Set; +export declare const commonly_mapped_to_nothing: Set; +export declare const non_ASCII_space_characters: Set; +export declare const prohibited_characters: Set; +export declare const bidirectional_r_al: Set; +export declare const bidirectional_l: Set; +//# sourceMappingURL=code-points-src.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts.map new file mode 100644 index 000000000..ef0e6947b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"code-points-src.d.ts","sourceRoot":"","sources":["../src/code-points-src.ts"],"names":[],"mappings":"AAMA,eAAO,MAAM,sBAAsB,aA6YjC,CAAC;AAMH,eAAO,MAAM,0BAA0B,aAIrC,CAAC;AAMH,eAAO,MAAM,0BAA0B,aASrC,CAAC;AAMH,eAAO,MAAM,qBAAqB,aA6GhC,CAAC;AAMH,eAAO,MAAM,kBAAkB,aAmC7B,CAAC;AAMH,eAAO,MAAM,eAAe,aAyW1B,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.js new file mode 100644 index 000000000..2caa62978 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.js @@ -0,0 +1,881 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.bidirectional_l = exports.bidirectional_r_al = exports.prohibited_characters = exports.non_ASCII_space_characters = exports.commonly_mapped_to_nothing = exports.unassigned_code_points = void 0; +const util_1 = require("./util"); +exports.unassigned_code_points = new Set([ + 0x0221, + ...(0, util_1.range)(0x0234, 0x024f), + ...(0, util_1.range)(0x02ae, 0x02af), + ...(0, util_1.range)(0x02ef, 0x02ff), + ...(0, util_1.range)(0x0350, 0x035f), + ...(0, util_1.range)(0x0370, 0x0373), + ...(0, util_1.range)(0x0376, 0x0379), + ...(0, util_1.range)(0x037b, 0x037d), + ...(0, util_1.range)(0x037f, 0x0383), + 0x038b, + 0x038d, + 0x03a2, + 0x03cf, + ...(0, util_1.range)(0x03f7, 0x03ff), + 0x0487, + 0x04cf, + ...(0, util_1.range)(0x04f6, 0x04f7), + ...(0, util_1.range)(0x04fa, 0x04ff), + ...(0, util_1.range)(0x0510, 0x0530), + ...(0, util_1.range)(0x0557, 0x0558), + 0x0560, + 0x0588, + ...(0, util_1.range)(0x058b, 0x0590), + 0x05a2, + 0x05ba, + ...(0, util_1.range)(0x05c5, 0x05cf), + ...(0, util_1.range)(0x05eb, 0x05ef), + ...(0, util_1.range)(0x05f5, 0x060b), + ...(0, util_1.range)(0x060d, 0x061a), + ...(0, util_1.range)(0x061c, 0x061e), + 0x0620, + ...(0, util_1.range)(0x063b, 0x063f), + ...(0, util_1.range)(0x0656, 0x065f), + ...(0, util_1.range)(0x06ee, 0x06ef), + 0x06ff, + 0x070e, + ...(0, util_1.range)(0x072d, 0x072f), + ...(0, util_1.range)(0x074b, 0x077f), + ...(0, util_1.range)(0x07b2, 0x0900), + 0x0904, + ...(0, util_1.range)(0x093a, 0x093b), + ...(0, util_1.range)(0x094e, 0x094f), + ...(0, util_1.range)(0x0955, 0x0957), + ...(0, util_1.range)(0x0971, 0x0980), + 0x0984, + ...(0, util_1.range)(0x098d, 0x098e), + ...(0, util_1.range)(0x0991, 0x0992), + 0x09a9, + 0x09b1, + ...(0, util_1.range)(0x09b3, 0x09b5), + ...(0, util_1.range)(0x09ba, 0x09bb), + 0x09bd, + ...(0, util_1.range)(0x09c5, 0x09c6), + ...(0, util_1.range)(0x09c9, 0x09ca), + ...(0, util_1.range)(0x09ce, 0x09d6), + ...(0, util_1.range)(0x09d8, 0x09db), + 0x09de, + ...(0, util_1.range)(0x09e4, 0x09e5), + ...(0, util_1.range)(0x09fb, 0x0a01), + ...(0, util_1.range)(0x0a03, 0x0a04), + ...(0, util_1.range)(0x0a0b, 0x0a0e), + ...(0, util_1.range)(0x0a11, 0x0a12), + 0x0a29, + 0x0a31, + 0x0a34, + 0x0a37, + ...(0, util_1.range)(0x0a3a, 0x0a3b), + 0x0a3d, + ...(0, util_1.range)(0x0a43, 0x0a46), + ...(0, util_1.range)(0x0a49, 0x0a4a), + ...(0, util_1.range)(0x0a4e, 0x0a58), + 0x0a5d, + ...(0, util_1.range)(0x0a5f, 0x0a65), + ...(0, util_1.range)(0x0a75, 0x0a80), + 0x0a84, + 0x0a8c, + 0x0a8e, + 0x0a92, + 0x0aa9, + 0x0ab1, + 0x0ab4, + ...(0, util_1.range)(0x0aba, 0x0abb), + 0x0ac6, + 0x0aca, + ...(0, util_1.range)(0x0ace, 0x0acf), + ...(0, util_1.range)(0x0ad1, 0x0adf), + ...(0, util_1.range)(0x0ae1, 0x0ae5), + ...(0, util_1.range)(0x0af0, 0x0b00), + 0x0b04, + ...(0, util_1.range)(0x0b0d, 0x0b0e), + ...(0, util_1.range)(0x0b11, 0x0b12), + 0x0b29, + 0x0b31, + ...(0, util_1.range)(0x0b34, 0x0b35), + ...(0, util_1.range)(0x0b3a, 0x0b3b), + ...(0, util_1.range)(0x0b44, 0x0b46), + ...(0, util_1.range)(0x0b49, 0x0b4a), + ...(0, util_1.range)(0x0b4e, 0x0b55), + ...(0, util_1.range)(0x0b58, 0x0b5b), + 0x0b5e, + ...(0, util_1.range)(0x0b62, 0x0b65), + ...(0, util_1.range)(0x0b71, 0x0b81), + 0x0b84, + ...(0, util_1.range)(0x0b8b, 0x0b8d), + 0x0b91, + ...(0, util_1.range)(0x0b96, 0x0b98), + 0x0b9b, + 0x0b9d, + ...(0, util_1.range)(0x0ba0, 0x0ba2), + ...(0, util_1.range)(0x0ba5, 0x0ba7), + ...(0, util_1.range)(0x0bab, 0x0bad), + 0x0bb6, + ...(0, util_1.range)(0x0bba, 0x0bbd), + ...(0, util_1.range)(0x0bc3, 0x0bc5), + 0x0bc9, + ...(0, util_1.range)(0x0bce, 0x0bd6), + ...(0, util_1.range)(0x0bd8, 0x0be6), + ...(0, util_1.range)(0x0bf3, 0x0c00), + 0x0c04, + 0x0c0d, + 0x0c11, + 0x0c29, + 0x0c34, + ...(0, util_1.range)(0x0c3a, 0x0c3d), + 0x0c45, + 0x0c49, + ...(0, util_1.range)(0x0c4e, 0x0c54), + ...(0, util_1.range)(0x0c57, 0x0c5f), + ...(0, util_1.range)(0x0c62, 0x0c65), + ...(0, util_1.range)(0x0c70, 0x0c81), + 0x0c84, + 0x0c8d, + 0x0c91, + 0x0ca9, + 0x0cb4, + ...(0, util_1.range)(0x0cba, 0x0cbd), + 0x0cc5, + 0x0cc9, + ...(0, util_1.range)(0x0cce, 0x0cd4), + ...(0, util_1.range)(0x0cd7, 0x0cdd), + 0x0cdf, + ...(0, util_1.range)(0x0ce2, 0x0ce5), + ...(0, util_1.range)(0x0cf0, 0x0d01), + 0x0d04, + 0x0d0d, + 0x0d11, + 0x0d29, + ...(0, util_1.range)(0x0d3a, 0x0d3d), + ...(0, util_1.range)(0x0d44, 0x0d45), + 0x0d49, + ...(0, util_1.range)(0x0d4e, 0x0d56), + ...(0, util_1.range)(0x0d58, 0x0d5f), + ...(0, util_1.range)(0x0d62, 0x0d65), + ...(0, util_1.range)(0x0d70, 0x0d81), + 0x0d84, + ...(0, util_1.range)(0x0d97, 0x0d99), + 0x0db2, + 0x0dbc, + ...(0, util_1.range)(0x0dbe, 0x0dbf), + ...(0, util_1.range)(0x0dc7, 0x0dc9), + ...(0, util_1.range)(0x0dcb, 0x0dce), + 0x0dd5, + 0x0dd7, + ...(0, util_1.range)(0x0de0, 0x0df1), + ...(0, util_1.range)(0x0df5, 0x0e00), + ...(0, util_1.range)(0x0e3b, 0x0e3e), + ...(0, util_1.range)(0x0e5c, 0x0e80), + 0x0e83, + ...(0, util_1.range)(0x0e85, 0x0e86), + 0x0e89, + ...(0, util_1.range)(0x0e8b, 0x0e8c), + ...(0, util_1.range)(0x0e8e, 0x0e93), + 0x0e98, + 0x0ea0, + 0x0ea4, + 0x0ea6, + ...(0, util_1.range)(0x0ea8, 0x0ea9), + 0x0eac, + 0x0eba, + ...(0, util_1.range)(0x0ebe, 0x0ebf), + 0x0ec5, + 0x0ec7, + ...(0, util_1.range)(0x0ece, 0x0ecf), + ...(0, util_1.range)(0x0eda, 0x0edb), + ...(0, util_1.range)(0x0ede, 0x0eff), + 0x0f48, + ...(0, util_1.range)(0x0f6b, 0x0f70), + ...(0, util_1.range)(0x0f8c, 0x0f8f), + 0x0f98, + 0x0fbd, + ...(0, util_1.range)(0x0fcd, 0x0fce), + ...(0, util_1.range)(0x0fd0, 0x0fff), + 0x1022, + 0x1028, + 0x102b, + ...(0, util_1.range)(0x1033, 0x1035), + ...(0, util_1.range)(0x103a, 0x103f), + ...(0, util_1.range)(0x105a, 0x109f), + ...(0, util_1.range)(0x10c6, 0x10cf), + ...(0, util_1.range)(0x10f9, 0x10fa), + ...(0, util_1.range)(0x10fc, 0x10ff), + ...(0, util_1.range)(0x115a, 0x115e), + ...(0, util_1.range)(0x11a3, 0x11a7), + ...(0, util_1.range)(0x11fa, 0x11ff), + 0x1207, + 0x1247, + 0x1249, + ...(0, util_1.range)(0x124e, 0x124f), + 0x1257, + 0x1259, + ...(0, util_1.range)(0x125e, 0x125f), + 0x1287, + 0x1289, + ...(0, util_1.range)(0x128e, 0x128f), + 0x12af, + 0x12b1, + ...(0, util_1.range)(0x12b6, 0x12b7), + 0x12bf, + 0x12c1, + ...(0, util_1.range)(0x12c6, 0x12c7), + 0x12cf, + 0x12d7, + 0x12ef, + 0x130f, + 0x1311, + ...(0, util_1.range)(0x1316, 0x1317), + 0x131f, + 0x1347, + ...(0, util_1.range)(0x135b, 0x1360), + ...(0, util_1.range)(0x137d, 0x139f), + ...(0, util_1.range)(0x13f5, 0x1400), + ...(0, util_1.range)(0x1677, 0x167f), + ...(0, util_1.range)(0x169d, 0x169f), + ...(0, util_1.range)(0x16f1, 0x16ff), + 0x170d, + ...(0, util_1.range)(0x1715, 0x171f), + ...(0, util_1.range)(0x1737, 0x173f), + ...(0, util_1.range)(0x1754, 0x175f), + 0x176d, + 0x1771, + ...(0, util_1.range)(0x1774, 0x177f), + ...(0, util_1.range)(0x17dd, 0x17df), + ...(0, util_1.range)(0x17ea, 0x17ff), + 0x180f, + ...(0, util_1.range)(0x181a, 0x181f), + ...(0, util_1.range)(0x1878, 0x187f), + ...(0, util_1.range)(0x18aa, 0x1dff), + ...(0, util_1.range)(0x1e9c, 0x1e9f), + ...(0, util_1.range)(0x1efa, 0x1eff), + ...(0, util_1.range)(0x1f16, 0x1f17), + ...(0, util_1.range)(0x1f1e, 0x1f1f), + ...(0, util_1.range)(0x1f46, 0x1f47), + ...(0, util_1.range)(0x1f4e, 0x1f4f), + 0x1f58, + 0x1f5a, + 0x1f5c, + 0x1f5e, + ...(0, util_1.range)(0x1f7e, 0x1f7f), + 0x1fb5, + 0x1fc5, + ...(0, util_1.range)(0x1fd4, 0x1fd5), + 0x1fdc, + ...(0, util_1.range)(0x1ff0, 0x1ff1), + 0x1ff5, + 0x1fff, + ...(0, util_1.range)(0x2053, 0x2056), + ...(0, util_1.range)(0x2058, 0x205e), + ...(0, util_1.range)(0x2064, 0x2069), + ...(0, util_1.range)(0x2072, 0x2073), + ...(0, util_1.range)(0x208f, 0x209f), + ...(0, util_1.range)(0x20b2, 0x20cf), + ...(0, util_1.range)(0x20eb, 0x20ff), + ...(0, util_1.range)(0x213b, 0x213c), + ...(0, util_1.range)(0x214c, 0x2152), + ...(0, util_1.range)(0x2184, 0x218f), + ...(0, util_1.range)(0x23cf, 0x23ff), + ...(0, util_1.range)(0x2427, 0x243f), + ...(0, util_1.range)(0x244b, 0x245f), + 0x24ff, + ...(0, util_1.range)(0x2614, 0x2615), + 0x2618, + ...(0, util_1.range)(0x267e, 0x267f), + ...(0, util_1.range)(0x268a, 0x2700), + 0x2705, + ...(0, util_1.range)(0x270a, 0x270b), + 0x2728, + 0x274c, + 0x274e, + ...(0, util_1.range)(0x2753, 0x2755), + 0x2757, + ...(0, util_1.range)(0x275f, 0x2760), + ...(0, util_1.range)(0x2795, 0x2797), + 0x27b0, + ...(0, util_1.range)(0x27bf, 0x27cf), + ...(0, util_1.range)(0x27ec, 0x27ef), + ...(0, util_1.range)(0x2b00, 0x2e7f), + 0x2e9a, + ...(0, util_1.range)(0x2ef4, 0x2eff), + ...(0, util_1.range)(0x2fd6, 0x2fef), + ...(0, util_1.range)(0x2ffc, 0x2fff), + 0x3040, + ...(0, util_1.range)(0x3097, 0x3098), + ...(0, util_1.range)(0x3100, 0x3104), + ...(0, util_1.range)(0x312d, 0x3130), + 0x318f, + ...(0, util_1.range)(0x31b8, 0x31ef), + ...(0, util_1.range)(0x321d, 0x321f), + ...(0, util_1.range)(0x3244, 0x3250), + ...(0, util_1.range)(0x327c, 0x327e), + ...(0, util_1.range)(0x32cc, 0x32cf), + 0x32ff, + ...(0, util_1.range)(0x3377, 0x337a), + ...(0, util_1.range)(0x33de, 0x33df), + 0x33ff, + ...(0, util_1.range)(0x4db6, 0x4dff), + ...(0, util_1.range)(0x9fa6, 0x9fff), + ...(0, util_1.range)(0xa48d, 0xa48f), + ...(0, util_1.range)(0xa4c7, 0xabff), + ...(0, util_1.range)(0xd7a4, 0xd7ff), + ...(0, util_1.range)(0xfa2e, 0xfa2f), + ...(0, util_1.range)(0xfa6b, 0xfaff), + ...(0, util_1.range)(0xfb07, 0xfb12), + ...(0, util_1.range)(0xfb18, 0xfb1c), + 0xfb37, + 0xfb3d, + 0xfb3f, + 0xfb42, + 0xfb45, + ...(0, util_1.range)(0xfbb2, 0xfbd2), + ...(0, util_1.range)(0xfd40, 0xfd4f), + ...(0, util_1.range)(0xfd90, 0xfd91), + ...(0, util_1.range)(0xfdc8, 0xfdcf), + ...(0, util_1.range)(0xfdfd, 0xfdff), + ...(0, util_1.range)(0xfe10, 0xfe1f), + ...(0, util_1.range)(0xfe24, 0xfe2f), + ...(0, util_1.range)(0xfe47, 0xfe48), + 0xfe53, + 0xfe67, + ...(0, util_1.range)(0xfe6c, 0xfe6f), + 0xfe75, + ...(0, util_1.range)(0xfefd, 0xfefe), + 0xff00, + ...(0, util_1.range)(0xffbf, 0xffc1), + ...(0, util_1.range)(0xffc8, 0xffc9), + ...(0, util_1.range)(0xffd0, 0xffd1), + ...(0, util_1.range)(0xffd8, 0xffd9), + ...(0, util_1.range)(0xffdd, 0xffdf), + 0xffe7, + ...(0, util_1.range)(0xffef, 0xfff8), + ...(0, util_1.range)(0x10000, 0x102ff), + 0x1031f, + ...(0, util_1.range)(0x10324, 0x1032f), + ...(0, util_1.range)(0x1034b, 0x103ff), + ...(0, util_1.range)(0x10426, 0x10427), + ...(0, util_1.range)(0x1044e, 0x1cfff), + ...(0, util_1.range)(0x1d0f6, 0x1d0ff), + ...(0, util_1.range)(0x1d127, 0x1d129), + ...(0, util_1.range)(0x1d1de, 0x1d3ff), + 0x1d455, + 0x1d49d, + ...(0, util_1.range)(0x1d4a0, 0x1d4a1), + ...(0, util_1.range)(0x1d4a3, 0x1d4a4), + ...(0, util_1.range)(0x1d4a7, 0x1d4a8), + 0x1d4ad, + 0x1d4ba, + 0x1d4bc, + 0x1d4c1, + 0x1d4c4, + 0x1d506, + ...(0, util_1.range)(0x1d50b, 0x1d50c), + 0x1d515, + 0x1d51d, + 0x1d53a, + 0x1d53f, + 0x1d545, + ...(0, util_1.range)(0x1d547, 0x1d549), + 0x1d551, + ...(0, util_1.range)(0x1d6a4, 0x1d6a7), + ...(0, util_1.range)(0x1d7ca, 0x1d7cd), + ...(0, util_1.range)(0x1d800, 0x1fffd), + ...(0, util_1.range)(0x2a6d7, 0x2f7ff), + ...(0, util_1.range)(0x2fa1e, 0x2fffd), + ...(0, util_1.range)(0x30000, 0x3fffd), + ...(0, util_1.range)(0x40000, 0x4fffd), + ...(0, util_1.range)(0x50000, 0x5fffd), + ...(0, util_1.range)(0x60000, 0x6fffd), + ...(0, util_1.range)(0x70000, 0x7fffd), + ...(0, util_1.range)(0x80000, 0x8fffd), + ...(0, util_1.range)(0x90000, 0x9fffd), + ...(0, util_1.range)(0xa0000, 0xafffd), + ...(0, util_1.range)(0xb0000, 0xbfffd), + ...(0, util_1.range)(0xc0000, 0xcfffd), + ...(0, util_1.range)(0xd0000, 0xdfffd), + 0xe0000, + ...(0, util_1.range)(0xe0002, 0xe001f), + ...(0, util_1.range)(0xe0080, 0xefffd), +]); +exports.commonly_mapped_to_nothing = new Set([ + 0x00ad, 0x034f, 0x1806, 0x180b, 0x180c, 0x180d, 0x200b, 0x200c, 0x200d, + 0x2060, 0xfe00, 0xfe01, 0xfe02, 0xfe03, 0xfe04, 0xfe05, 0xfe06, 0xfe07, + 0xfe08, 0xfe09, 0xfe0a, 0xfe0b, 0xfe0c, 0xfe0d, 0xfe0e, 0xfe0f, 0xfeff, +]); +exports.non_ASCII_space_characters = new Set([ + 0x00a0, 0x1680, + 0x2000, 0x2001, 0x2002, + 0x2003, 0x2004, + 0x2005, 0x2006, + 0x2007, 0x2008, + 0x2009, 0x200a, + 0x200b, 0x202f, + 0x205f, 0x3000, +]); +exports.prohibited_characters = new Set([ + ...exports.non_ASCII_space_characters, + ...(0, util_1.range)(0, 0x001f), + 0x007f, + ...(0, util_1.range)(0x0080, 0x009f), + 0x06dd, + 0x070f, + 0x180e, + 0x200c, + 0x200d, + 0x2028, + 0x2029, + 0x2060, + 0x2061, + 0x2062, + 0x2063, + ...(0, util_1.range)(0x206a, 0x206f), + 0xfeff, + ...(0, util_1.range)(0xfff9, 0xfffc), + ...(0, util_1.range)(0x1d173, 0x1d17a), + ...(0, util_1.range)(0xe000, 0xf8ff), + ...(0, util_1.range)(0xf0000, 0xffffd), + ...(0, util_1.range)(0x100000, 0x10fffd), + ...(0, util_1.range)(0xfdd0, 0xfdef), + ...(0, util_1.range)(0xfffe, 0xffff), + ...(0, util_1.range)(0x1fffe, 0x1ffff), + ...(0, util_1.range)(0x2fffe, 0x2ffff), + ...(0, util_1.range)(0x3fffe, 0x3ffff), + ...(0, util_1.range)(0x4fffe, 0x4ffff), + ...(0, util_1.range)(0x5fffe, 0x5ffff), + ...(0, util_1.range)(0x6fffe, 0x6ffff), + ...(0, util_1.range)(0x7fffe, 0x7ffff), + ...(0, util_1.range)(0x8fffe, 0x8ffff), + ...(0, util_1.range)(0x9fffe, 0x9ffff), + ...(0, util_1.range)(0xafffe, 0xaffff), + ...(0, util_1.range)(0xbfffe, 0xbffff), + ...(0, util_1.range)(0xcfffe, 0xcffff), + ...(0, util_1.range)(0xdfffe, 0xdffff), + ...(0, util_1.range)(0xefffe, 0xeffff), + ...(0, util_1.range)(0x10fffe, 0x10ffff), + ...(0, util_1.range)(0xd800, 0xdfff), + 0xfff9, + 0xfffa, + 0xfffb, + 0xfffc, + 0xfffd, + ...(0, util_1.range)(0x2ff0, 0x2ffb), + 0x0340, + 0x0341, + 0x200e, + 0x200f, + 0x202a, + 0x202b, + 0x202c, + 0x202d, + 0x202e, + 0x206a, + 0x206b, + 0x206c, + 0x206d, + 0x206e, + 0x206f, + 0xe0001, + ...(0, util_1.range)(0xe0020, 0xe007f), +]); +exports.bidirectional_r_al = new Set([ + 0x05be, + 0x05c0, + 0x05c3, + ...(0, util_1.range)(0x05d0, 0x05ea), + ...(0, util_1.range)(0x05f0, 0x05f4), + 0x061b, + 0x061f, + ...(0, util_1.range)(0x0621, 0x063a), + ...(0, util_1.range)(0x0640, 0x064a), + ...(0, util_1.range)(0x066d, 0x066f), + ...(0, util_1.range)(0x0671, 0x06d5), + 0x06dd, + ...(0, util_1.range)(0x06e5, 0x06e6), + ...(0, util_1.range)(0x06fa, 0x06fe), + ...(0, util_1.range)(0x0700, 0x070d), + 0x0710, + ...(0, util_1.range)(0x0712, 0x072c), + ...(0, util_1.range)(0x0780, 0x07a5), + 0x07b1, + 0x200f, + 0xfb1d, + ...(0, util_1.range)(0xfb1f, 0xfb28), + ...(0, util_1.range)(0xfb2a, 0xfb36), + ...(0, util_1.range)(0xfb38, 0xfb3c), + 0xfb3e, + ...(0, util_1.range)(0xfb40, 0xfb41), + ...(0, util_1.range)(0xfb43, 0xfb44), + ...(0, util_1.range)(0xfb46, 0xfbb1), + ...(0, util_1.range)(0xfbd3, 0xfd3d), + ...(0, util_1.range)(0xfd50, 0xfd8f), + ...(0, util_1.range)(0xfd92, 0xfdc7), + ...(0, util_1.range)(0xfdf0, 0xfdfc), + ...(0, util_1.range)(0xfe70, 0xfe74), + ...(0, util_1.range)(0xfe76, 0xfefc), +]); +exports.bidirectional_l = new Set([ + ...(0, util_1.range)(0x0041, 0x005a), + ...(0, util_1.range)(0x0061, 0x007a), + 0x00aa, + 0x00b5, + 0x00ba, + ...(0, util_1.range)(0x00c0, 0x00d6), + ...(0, util_1.range)(0x00d8, 0x00f6), + ...(0, util_1.range)(0x00f8, 0x0220), + ...(0, util_1.range)(0x0222, 0x0233), + ...(0, util_1.range)(0x0250, 0x02ad), + ...(0, util_1.range)(0x02b0, 0x02b8), + ...(0, util_1.range)(0x02bb, 0x02c1), + ...(0, util_1.range)(0x02d0, 0x02d1), + ...(0, util_1.range)(0x02e0, 0x02e4), + 0x02ee, + 0x037a, + 0x0386, + ...(0, util_1.range)(0x0388, 0x038a), + 0x038c, + ...(0, util_1.range)(0x038e, 0x03a1), + ...(0, util_1.range)(0x03a3, 0x03ce), + ...(0, util_1.range)(0x03d0, 0x03f5), + ...(0, util_1.range)(0x0400, 0x0482), + ...(0, util_1.range)(0x048a, 0x04ce), + ...(0, util_1.range)(0x04d0, 0x04f5), + ...(0, util_1.range)(0x04f8, 0x04f9), + ...(0, util_1.range)(0x0500, 0x050f), + ...(0, util_1.range)(0x0531, 0x0556), + ...(0, util_1.range)(0x0559, 0x055f), + ...(0, util_1.range)(0x0561, 0x0587), + 0x0589, + 0x0903, + ...(0, util_1.range)(0x0905, 0x0939), + ...(0, util_1.range)(0x093d, 0x0940), + ...(0, util_1.range)(0x0949, 0x094c), + 0x0950, + ...(0, util_1.range)(0x0958, 0x0961), + ...(0, util_1.range)(0x0964, 0x0970), + ...(0, util_1.range)(0x0982, 0x0983), + ...(0, util_1.range)(0x0985, 0x098c), + ...(0, util_1.range)(0x098f, 0x0990), + ...(0, util_1.range)(0x0993, 0x09a8), + ...(0, util_1.range)(0x09aa, 0x09b0), + 0x09b2, + ...(0, util_1.range)(0x09b6, 0x09b9), + ...(0, util_1.range)(0x09be, 0x09c0), + ...(0, util_1.range)(0x09c7, 0x09c8), + ...(0, util_1.range)(0x09cb, 0x09cc), + 0x09d7, + ...(0, util_1.range)(0x09dc, 0x09dd), + ...(0, util_1.range)(0x09df, 0x09e1), + ...(0, util_1.range)(0x09e6, 0x09f1), + ...(0, util_1.range)(0x09f4, 0x09fa), + ...(0, util_1.range)(0x0a05, 0x0a0a), + ...(0, util_1.range)(0x0a0f, 0x0a10), + ...(0, util_1.range)(0x0a13, 0x0a28), + ...(0, util_1.range)(0x0a2a, 0x0a30), + ...(0, util_1.range)(0x0a32, 0x0a33), + ...(0, util_1.range)(0x0a35, 0x0a36), + ...(0, util_1.range)(0x0a38, 0x0a39), + ...(0, util_1.range)(0x0a3e, 0x0a40), + ...(0, util_1.range)(0x0a59, 0x0a5c), + 0x0a5e, + ...(0, util_1.range)(0x0a66, 0x0a6f), + ...(0, util_1.range)(0x0a72, 0x0a74), + 0x0a83, + ...(0, util_1.range)(0x0a85, 0x0a8b), + 0x0a8d, + ...(0, util_1.range)(0x0a8f, 0x0a91), + ...(0, util_1.range)(0x0a93, 0x0aa8), + ...(0, util_1.range)(0x0aaa, 0x0ab0), + ...(0, util_1.range)(0x0ab2, 0x0ab3), + ...(0, util_1.range)(0x0ab5, 0x0ab9), + ...(0, util_1.range)(0x0abd, 0x0ac0), + 0x0ac9, + ...(0, util_1.range)(0x0acb, 0x0acc), + 0x0ad0, + 0x0ae0, + ...(0, util_1.range)(0x0ae6, 0x0aef), + ...(0, util_1.range)(0x0b02, 0x0b03), + ...(0, util_1.range)(0x0b05, 0x0b0c), + ...(0, util_1.range)(0x0b0f, 0x0b10), + ...(0, util_1.range)(0x0b13, 0x0b28), + ...(0, util_1.range)(0x0b2a, 0x0b30), + ...(0, util_1.range)(0x0b32, 0x0b33), + ...(0, util_1.range)(0x0b36, 0x0b39), + ...(0, util_1.range)(0x0b3d, 0x0b3e), + 0x0b40, + ...(0, util_1.range)(0x0b47, 0x0b48), + ...(0, util_1.range)(0x0b4b, 0x0b4c), + 0x0b57, + ...(0, util_1.range)(0x0b5c, 0x0b5d), + ...(0, util_1.range)(0x0b5f, 0x0b61), + ...(0, util_1.range)(0x0b66, 0x0b70), + 0x0b83, + ...(0, util_1.range)(0x0b85, 0x0b8a), + ...(0, util_1.range)(0x0b8e, 0x0b90), + ...(0, util_1.range)(0x0b92, 0x0b95), + ...(0, util_1.range)(0x0b99, 0x0b9a), + 0x0b9c, + ...(0, util_1.range)(0x0b9e, 0x0b9f), + ...(0, util_1.range)(0x0ba3, 0x0ba4), + ...(0, util_1.range)(0x0ba8, 0x0baa), + ...(0, util_1.range)(0x0bae, 0x0bb5), + ...(0, util_1.range)(0x0bb7, 0x0bb9), + ...(0, util_1.range)(0x0bbe, 0x0bbf), + ...(0, util_1.range)(0x0bc1, 0x0bc2), + ...(0, util_1.range)(0x0bc6, 0x0bc8), + ...(0, util_1.range)(0x0bca, 0x0bcc), + 0x0bd7, + ...(0, util_1.range)(0x0be7, 0x0bf2), + ...(0, util_1.range)(0x0c01, 0x0c03), + ...(0, util_1.range)(0x0c05, 0x0c0c), + ...(0, util_1.range)(0x0c0e, 0x0c10), + ...(0, util_1.range)(0x0c12, 0x0c28), + ...(0, util_1.range)(0x0c2a, 0x0c33), + ...(0, util_1.range)(0x0c35, 0x0c39), + ...(0, util_1.range)(0x0c41, 0x0c44), + ...(0, util_1.range)(0x0c60, 0x0c61), + ...(0, util_1.range)(0x0c66, 0x0c6f), + ...(0, util_1.range)(0x0c82, 0x0c83), + ...(0, util_1.range)(0x0c85, 0x0c8c), + ...(0, util_1.range)(0x0c8e, 0x0c90), + ...(0, util_1.range)(0x0c92, 0x0ca8), + ...(0, util_1.range)(0x0caa, 0x0cb3), + ...(0, util_1.range)(0x0cb5, 0x0cb9), + 0x0cbe, + ...(0, util_1.range)(0x0cc0, 0x0cc4), + ...(0, util_1.range)(0x0cc7, 0x0cc8), + ...(0, util_1.range)(0x0cca, 0x0ccb), + ...(0, util_1.range)(0x0cd5, 0x0cd6), + 0x0cde, + ...(0, util_1.range)(0x0ce0, 0x0ce1), + ...(0, util_1.range)(0x0ce6, 0x0cef), + ...(0, util_1.range)(0x0d02, 0x0d03), + ...(0, util_1.range)(0x0d05, 0x0d0c), + ...(0, util_1.range)(0x0d0e, 0x0d10), + ...(0, util_1.range)(0x0d12, 0x0d28), + ...(0, util_1.range)(0x0d2a, 0x0d39), + ...(0, util_1.range)(0x0d3e, 0x0d40), + ...(0, util_1.range)(0x0d46, 0x0d48), + ...(0, util_1.range)(0x0d4a, 0x0d4c), + 0x0d57, + ...(0, util_1.range)(0x0d60, 0x0d61), + ...(0, util_1.range)(0x0d66, 0x0d6f), + ...(0, util_1.range)(0x0d82, 0x0d83), + ...(0, util_1.range)(0x0d85, 0x0d96), + ...(0, util_1.range)(0x0d9a, 0x0db1), + ...(0, util_1.range)(0x0db3, 0x0dbb), + 0x0dbd, + ...(0, util_1.range)(0x0dc0, 0x0dc6), + ...(0, util_1.range)(0x0dcf, 0x0dd1), + ...(0, util_1.range)(0x0dd8, 0x0ddf), + ...(0, util_1.range)(0x0df2, 0x0df4), + ...(0, util_1.range)(0x0e01, 0x0e30), + ...(0, util_1.range)(0x0e32, 0x0e33), + ...(0, util_1.range)(0x0e40, 0x0e46), + ...(0, util_1.range)(0x0e4f, 0x0e5b), + ...(0, util_1.range)(0x0e81, 0x0e82), + 0x0e84, + ...(0, util_1.range)(0x0e87, 0x0e88), + 0x0e8a, + 0x0e8d, + ...(0, util_1.range)(0x0e94, 0x0e97), + ...(0, util_1.range)(0x0e99, 0x0e9f), + ...(0, util_1.range)(0x0ea1, 0x0ea3), + 0x0ea5, + 0x0ea7, + ...(0, util_1.range)(0x0eaa, 0x0eab), + ...(0, util_1.range)(0x0ead, 0x0eb0), + ...(0, util_1.range)(0x0eb2, 0x0eb3), + 0x0ebd, + ...(0, util_1.range)(0x0ec0, 0x0ec4), + 0x0ec6, + ...(0, util_1.range)(0x0ed0, 0x0ed9), + ...(0, util_1.range)(0x0edc, 0x0edd), + ...(0, util_1.range)(0x0f00, 0x0f17), + ...(0, util_1.range)(0x0f1a, 0x0f34), + 0x0f36, + 0x0f38, + ...(0, util_1.range)(0x0f3e, 0x0f47), + ...(0, util_1.range)(0x0f49, 0x0f6a), + 0x0f7f, + 0x0f85, + ...(0, util_1.range)(0x0f88, 0x0f8b), + ...(0, util_1.range)(0x0fbe, 0x0fc5), + ...(0, util_1.range)(0x0fc7, 0x0fcc), + 0x0fcf, + ...(0, util_1.range)(0x1000, 0x1021), + ...(0, util_1.range)(0x1023, 0x1027), + ...(0, util_1.range)(0x1029, 0x102a), + 0x102c, + 0x1031, + 0x1038, + ...(0, util_1.range)(0x1040, 0x1057), + ...(0, util_1.range)(0x10a0, 0x10c5), + ...(0, util_1.range)(0x10d0, 0x10f8), + 0x10fb, + ...(0, util_1.range)(0x1100, 0x1159), + ...(0, util_1.range)(0x115f, 0x11a2), + ...(0, util_1.range)(0x11a8, 0x11f9), + ...(0, util_1.range)(0x1200, 0x1206), + ...(0, util_1.range)(0x1208, 0x1246), + 0x1248, + ...(0, util_1.range)(0x124a, 0x124d), + ...(0, util_1.range)(0x1250, 0x1256), + 0x1258, + ...(0, util_1.range)(0x125a, 0x125d), + ...(0, util_1.range)(0x1260, 0x1286), + 0x1288, + ...(0, util_1.range)(0x128a, 0x128d), + ...(0, util_1.range)(0x1290, 0x12ae), + 0x12b0, + ...(0, util_1.range)(0x12b2, 0x12b5), + ...(0, util_1.range)(0x12b8, 0x12be), + 0x12c0, + ...(0, util_1.range)(0x12c2, 0x12c5), + ...(0, util_1.range)(0x12c8, 0x12ce), + ...(0, util_1.range)(0x12d0, 0x12d6), + ...(0, util_1.range)(0x12d8, 0x12ee), + ...(0, util_1.range)(0x12f0, 0x130e), + 0x1310, + ...(0, util_1.range)(0x1312, 0x1315), + ...(0, util_1.range)(0x1318, 0x131e), + ...(0, util_1.range)(0x1320, 0x1346), + ...(0, util_1.range)(0x1348, 0x135a), + ...(0, util_1.range)(0x1361, 0x137c), + ...(0, util_1.range)(0x13a0, 0x13f4), + ...(0, util_1.range)(0x1401, 0x1676), + ...(0, util_1.range)(0x1681, 0x169a), + ...(0, util_1.range)(0x16a0, 0x16f0), + ...(0, util_1.range)(0x1700, 0x170c), + ...(0, util_1.range)(0x170e, 0x1711), + ...(0, util_1.range)(0x1720, 0x1731), + ...(0, util_1.range)(0x1735, 0x1736), + ...(0, util_1.range)(0x1740, 0x1751), + ...(0, util_1.range)(0x1760, 0x176c), + ...(0, util_1.range)(0x176e, 0x1770), + ...(0, util_1.range)(0x1780, 0x17b6), + ...(0, util_1.range)(0x17be, 0x17c5), + ...(0, util_1.range)(0x17c7, 0x17c8), + ...(0, util_1.range)(0x17d4, 0x17da), + 0x17dc, + ...(0, util_1.range)(0x17e0, 0x17e9), + ...(0, util_1.range)(0x1810, 0x1819), + ...(0, util_1.range)(0x1820, 0x1877), + ...(0, util_1.range)(0x1880, 0x18a8), + ...(0, util_1.range)(0x1e00, 0x1e9b), + ...(0, util_1.range)(0x1ea0, 0x1ef9), + ...(0, util_1.range)(0x1f00, 0x1f15), + ...(0, util_1.range)(0x1f18, 0x1f1d), + ...(0, util_1.range)(0x1f20, 0x1f45), + ...(0, util_1.range)(0x1f48, 0x1f4d), + ...(0, util_1.range)(0x1f50, 0x1f57), + 0x1f59, + 0x1f5b, + 0x1f5d, + ...(0, util_1.range)(0x1f5f, 0x1f7d), + ...(0, util_1.range)(0x1f80, 0x1fb4), + ...(0, util_1.range)(0x1fb6, 0x1fbc), + 0x1fbe, + ...(0, util_1.range)(0x1fc2, 0x1fc4), + ...(0, util_1.range)(0x1fc6, 0x1fcc), + ...(0, util_1.range)(0x1fd0, 0x1fd3), + ...(0, util_1.range)(0x1fd6, 0x1fdb), + ...(0, util_1.range)(0x1fe0, 0x1fec), + ...(0, util_1.range)(0x1ff2, 0x1ff4), + ...(0, util_1.range)(0x1ff6, 0x1ffc), + 0x200e, + 0x2071, + 0x207f, + 0x2102, + 0x2107, + ...(0, util_1.range)(0x210a, 0x2113), + 0x2115, + ...(0, util_1.range)(0x2119, 0x211d), + 0x2124, + 0x2126, + 0x2128, + ...(0, util_1.range)(0x212a, 0x212d), + ...(0, util_1.range)(0x212f, 0x2131), + ...(0, util_1.range)(0x2133, 0x2139), + ...(0, util_1.range)(0x213d, 0x213f), + ...(0, util_1.range)(0x2145, 0x2149), + ...(0, util_1.range)(0x2160, 0x2183), + ...(0, util_1.range)(0x2336, 0x237a), + 0x2395, + ...(0, util_1.range)(0x249c, 0x24e9), + ...(0, util_1.range)(0x3005, 0x3007), + ...(0, util_1.range)(0x3021, 0x3029), + ...(0, util_1.range)(0x3031, 0x3035), + ...(0, util_1.range)(0x3038, 0x303c), + ...(0, util_1.range)(0x3041, 0x3096), + ...(0, util_1.range)(0x309d, 0x309f), + ...(0, util_1.range)(0x30a1, 0x30fa), + ...(0, util_1.range)(0x30fc, 0x30ff), + ...(0, util_1.range)(0x3105, 0x312c), + ...(0, util_1.range)(0x3131, 0x318e), + ...(0, util_1.range)(0x3190, 0x31b7), + ...(0, util_1.range)(0x31f0, 0x321c), + ...(0, util_1.range)(0x3220, 0x3243), + ...(0, util_1.range)(0x3260, 0x327b), + ...(0, util_1.range)(0x327f, 0x32b0), + ...(0, util_1.range)(0x32c0, 0x32cb), + ...(0, util_1.range)(0x32d0, 0x32fe), + ...(0, util_1.range)(0x3300, 0x3376), + ...(0, util_1.range)(0x337b, 0x33dd), + ...(0, util_1.range)(0x33e0, 0x33fe), + ...(0, util_1.range)(0x3400, 0x4db5), + ...(0, util_1.range)(0x4e00, 0x9fa5), + ...(0, util_1.range)(0xa000, 0xa48c), + ...(0, util_1.range)(0xac00, 0xd7a3), + ...(0, util_1.range)(0xd800, 0xfa2d), + ...(0, util_1.range)(0xfa30, 0xfa6a), + ...(0, util_1.range)(0xfb00, 0xfb06), + ...(0, util_1.range)(0xfb13, 0xfb17), + ...(0, util_1.range)(0xff21, 0xff3a), + ...(0, util_1.range)(0xff41, 0xff5a), + ...(0, util_1.range)(0xff66, 0xffbe), + ...(0, util_1.range)(0xffc2, 0xffc7), + ...(0, util_1.range)(0xffca, 0xffcf), + ...(0, util_1.range)(0xffd2, 0xffd7), + ...(0, util_1.range)(0xffda, 0xffdc), + ...(0, util_1.range)(0x10300, 0x1031e), + ...(0, util_1.range)(0x10320, 0x10323), + ...(0, util_1.range)(0x10330, 0x1034a), + ...(0, util_1.range)(0x10400, 0x10425), + ...(0, util_1.range)(0x10428, 0x1044d), + ...(0, util_1.range)(0x1d000, 0x1d0f5), + ...(0, util_1.range)(0x1d100, 0x1d126), + ...(0, util_1.range)(0x1d12a, 0x1d166), + ...(0, util_1.range)(0x1d16a, 0x1d172), + ...(0, util_1.range)(0x1d183, 0x1d184), + ...(0, util_1.range)(0x1d18c, 0x1d1a9), + ...(0, util_1.range)(0x1d1ae, 0x1d1dd), + ...(0, util_1.range)(0x1d400, 0x1d454), + ...(0, util_1.range)(0x1d456, 0x1d49c), + ...(0, util_1.range)(0x1d49e, 0x1d49f), + 0x1d4a2, + ...(0, util_1.range)(0x1d4a5, 0x1d4a6), + ...(0, util_1.range)(0x1d4a9, 0x1d4ac), + ...(0, util_1.range)(0x1d4ae, 0x1d4b9), + 0x1d4bb, + ...(0, util_1.range)(0x1d4bd, 0x1d4c0), + ...(0, util_1.range)(0x1d4c2, 0x1d4c3), + ...(0, util_1.range)(0x1d4c5, 0x1d505), + ...(0, util_1.range)(0x1d507, 0x1d50a), + ...(0, util_1.range)(0x1d50d, 0x1d514), + ...(0, util_1.range)(0x1d516, 0x1d51c), + ...(0, util_1.range)(0x1d51e, 0x1d539), + ...(0, util_1.range)(0x1d53b, 0x1d53e), + ...(0, util_1.range)(0x1d540, 0x1d544), + 0x1d546, + ...(0, util_1.range)(0x1d54a, 0x1d550), + ...(0, util_1.range)(0x1d552, 0x1d6a3), + ...(0, util_1.range)(0x1d6a8, 0x1d7c9), + ...(0, util_1.range)(0x20000, 0x2a6d6), + ...(0, util_1.range)(0x2f800, 0x2fa1d), + ...(0, util_1.range)(0xf0000, 0xffffd), + ...(0, util_1.range)(0x100000, 0x10fffd), +]); +//# sourceMappingURL=code-points-src.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.js.map new file mode 100644 index 000000000..dfb14ea82 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/code-points-src.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts new file mode 100644 index 000000000..5a83ab249 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts @@ -0,0 +1,2 @@ +export {}; +//# sourceMappingURL=generate-code-points.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts.map new file mode 100644 index 000000000..b102903ec --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"generate-code-points.d.ts","sourceRoot":"","sources":["../src/generate-code-points.ts"],"names":[],"mappings":""} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js new file mode 100644 index 000000000..5dbf94849 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js @@ -0,0 +1,73 @@ +"use strict"; +var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { + if (k2 === undefined) k2 = k; + var desc = Object.getOwnPropertyDescriptor(m, k); + if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { + desc = { enumerable: true, get: function() { return m[k]; } }; + } + Object.defineProperty(o, k2, desc); +}) : (function(o, m, k, k2) { + if (k2 === undefined) k2 = k; + o[k2] = m[k]; +})); +var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { + Object.defineProperty(o, "default", { enumerable: true, value: v }); +}) : function(o, v) { + o["default"] = v; +}); +var __importStar = (this && this.__importStar) || function (mod) { + if (mod && mod.__esModule) return mod; + var result = {}; + if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); + __setModuleDefault(result, mod); + return result; +}; +var __importDefault = (this && this.__importDefault) || function (mod) { + return (mod && mod.__esModule) ? mod : { "default": mod }; +}; +Object.defineProperty(exports, "__esModule", { value: true }); +const zlib_1 = require("zlib"); +const sparse_bitfield_1 = __importDefault(require("sparse-bitfield")); +const codePoints = __importStar(require("./code-points-src")); +const fs_1 = require("fs"); +const prettier = __importStar(require("prettier")); +const unassigned_code_points = (0, sparse_bitfield_1.default)(); +const commonly_mapped_to_nothing = (0, sparse_bitfield_1.default)(); +const non_ascii_space_characters = (0, sparse_bitfield_1.default)(); +const prohibited_characters = (0, sparse_bitfield_1.default)(); +const bidirectional_r_al = (0, sparse_bitfield_1.default)(); +const bidirectional_l = (0, sparse_bitfield_1.default)(); +function traverse(bits, src) { + for (const code of src.keys()) { + bits.set(code, true); + } + const buffer = bits.toBuffer(); + return Buffer.concat([createSize(buffer), buffer]); +} +function createSize(buffer) { + const buf = Buffer.alloc(4); + buf.writeUInt32BE(buffer.length); + return buf; +} +const memory = []; +memory.push(traverse(unassigned_code_points, codePoints.unassigned_code_points), traverse(commonly_mapped_to_nothing, codePoints.commonly_mapped_to_nothing), traverse(non_ascii_space_characters, codePoints.non_ASCII_space_characters), traverse(prohibited_characters, codePoints.prohibited_characters), traverse(bidirectional_r_al, codePoints.bidirectional_r_al), traverse(bidirectional_l, codePoints.bidirectional_l)); +async function writeCodepoints() { + const config = await prettier.resolveConfig(__dirname); + const formatOptions = { ...config, parser: 'typescript' }; + function write(stream, chunk) { + return new Promise((resolve) => stream.write(chunk, () => resolve())); + } + await write((0, fs_1.createWriteStream)(process.argv[2]), prettier.format(`import { gunzipSync } from 'zlib'; + + export default gunzipSync( + Buffer.from( + '${(0, zlib_1.gzipSync)(Buffer.concat(memory), { level: 9 }).toString('base64')}', + 'base64' + ) + ); + `, formatOptions)); + const fsStreamUncompressedData = (0, fs_1.createWriteStream)(process.argv[3]); + await write(fsStreamUncompressedData, prettier.format(`const data = Buffer.from('${Buffer.concat(memory).toString('base64')}', 'base64');\nexport default data;\n`, formatOptions)); +} +writeCodepoints().catch((error) => console.error('error occurred generating saslprep codepoint data', { error })); +//# sourceMappingURL=generate-code-points.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js.map new file mode 100644 index 000000000..ba3002334 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/generate-code-points.js.map @@ -0,0 +1 @@ +{"version":3,"file":"generate-code-points.js","sourceRoot":"","sources":["../src/generate-code-points.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,+BAAgC;AAChC,sEAAuC;AACvC,8DAAgD;AAChD,2BAAuC;AACvC,mDAAqC;AAGrC,MAAM,sBAAsB,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAC1C,MAAM,0BAA0B,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAC9C,MAAM,0BAA0B,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAC9C,MAAM,qBAAqB,GAAG,IAAA,yBAAQ,GAAE,CAAC;AACzC,MAAM,kBAAkB,GAAG,IAAA,yBAAQ,GAAE,CAAC;AACtC,MAAM,eAAe,GAAG,IAAA,yBAAQ,GAAE,CAAC;AAMnC,SAAS,QAAQ,CAAC,IAA+B,EAAE,GAAgB;IACjE,KAAK,MAAM,IAAI,IAAI,GAAG,CAAC,IAAI,EAAE,EAAE;QAC7B,IAAI,CAAC,GAAG,CAAC,IAAI,EAAE,IAAI,CAAC,CAAC;KACtB;IAED,MAAM,MAAM,GAAG,IAAI,CAAC,QAAQ,EAAE,CAAC;IAC/B,OAAO,MAAM,CAAC,MAAM,CAAC,CAAC,UAAU,CAAC,MAAM,CAAC,EAAE,MAAM,CAAC,CAAC,CAAC;AACrD,CAAC;AAED,SAAS,UAAU,CAAC,MAAc;IAChC,MAAM,GAAG,GAAG,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;IAC5B,GAAG,CAAC,aAAa,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC;IAEjC,OAAO,GAAG,CAAC;AACb,CAAC;AAED,MAAM,MAAM,GAAa,EAAE,CAAC;AAE5B,MAAM,CAAC,IAAI,CACT,QAAQ,CAAC,sBAAsB,EAAE,UAAU,CAAC,sBAAsB,CAAC,EACnE,QAAQ,CAAC,0BAA0B,EAAE,UAAU,CAAC,0BAA0B,CAAC,EAC3E,QAAQ,CAAC,0BAA0B,EAAE,UAAU,CAAC,0BAA0B,CAAC,EAC3E,QAAQ,CAAC,qBAAqB,EAAE,UAAU,CAAC,qBAAqB,CAAC,EACjE,QAAQ,CAAC,kBAAkB,EAAE,UAAU,CAAC,kBAAkB,CAAC,EAC3D,QAAQ,CAAC,eAAe,EAAE,UAAU,CAAC,eAAe,CAAC,CACtD,CAAC;AAEF,KAAK,UAAU,eAAe;IAC5B,MAAM,MAAM,GAAG,MAAM,QAAQ,CAAC,aAAa,CAAC,SAAS,CAAC,CAAC;IACvD,MAAM,aAAa,GAAG,EAAE,GAAG,MAAM,EAAE,MAAM,EAAE,YAAY,EAAE,CAAC;IAE1D,SAAS,KAAK,CAAC,MAAgB,EAAE,KAAa;QAC5C,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE,CAAC,MAAM,CAAC,KAAK,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,OAAO,EAAE,CAAC,CAAC,CAAC;IACxE,CAAC;IACD,MAAM,KAAK,CACT,IAAA,sBAAiB,EAAC,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,EAClC,QAAQ,CAAC,MAAM,CACb;;;;SAIG,IAAA,eAAQ,EAAC,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE,EAAE,KAAK,EAAE,CAAC,EAAE,CAAC,CAAC,QAAQ,CAAC,QAAQ,CAAC;;;;GAItE,EACG,aAAa,CACd,CACF,CAAC;IAEF,MAAM,wBAAwB,GAAG,IAAA,sBAAiB,EAAC,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IAEpE,MAAM,KAAK,CACT,wBAAwB,EACxB,QAAQ,CAAC,MAAM,CACb,6BAA6B,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC,QAAQ,CACzD,QAAQ,CACT,uCAAuC,EACxC,aAAa,CACd,CACF,CAAC;AACJ,CAAC;AAED,eAAe,EAAE,CAAC,KAAK,CAAC,CAAC,KAAK,EAAE,EAAE,CAEhC,OAAO,CAAC,KAAK,CAAC,mDAAmD,EAAE,EAAE,KAAK,EAAE,CAAC,CAC9E,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.d.ts new file mode 100644 index 000000000..24d575c54 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.d.ts @@ -0,0 +1,11 @@ +import type { createMemoryCodePoints } from './memory-code-points'; +declare function saslprep({ unassigned_code_points, commonly_mapped_to_nothing, non_ASCII_space_characters, prohibited_characters, bidirectional_r_al, bidirectional_l, }: ReturnType, input: string, opts?: { + allowUnassigned?: boolean; +}): string; +declare namespace saslprep { + export var saslprep: typeof import("."); + var _a: typeof import("."); + export { _a as default }; +} +export = saslprep; +//# sourceMappingURL=index.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.d.ts.map new file mode 100644 index 000000000..e53e39461 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA,OAAO,KAAK,EAAE,sBAAsB,EAAE,MAAM,sBAAsB,CAAC;AAsCnE,iBAAS,QAAQ,CACf,EACE,sBAAsB,EACtB,0BAA0B,EAC1B,0BAA0B,EAC1B,qBAAqB,EACrB,kBAAkB,EAClB,eAAe,GAChB,EAAE,UAAU,CAAC,OAAO,sBAAsB,CAAC,EAC5C,KAAK,EAAE,MAAM,EACb,IAAI,GAAE;IAAE,eAAe,CAAC,EAAE,OAAO,CAAA;CAAO,GACvC,MAAM,CAqGR;kBAhHQ,QAAQ;;;;;AAoHjB,SAAS,QAAQ,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.js new file mode 100644 index 000000000..07d87bc58 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.js @@ -0,0 +1,65 @@ +"use strict"; +const getCodePoint = (character) => character.codePointAt(0); +const first = (x) => x[0]; +const last = (x) => x[x.length - 1]; +function toCodePoints(input) { + const codepoints = []; + const size = input.length; + for (let i = 0; i < size; i += 1) { + const before = input.charCodeAt(i); + if (before >= 0xd800 && before <= 0xdbff && size > i + 1) { + const next = input.charCodeAt(i + 1); + if (next >= 0xdc00 && next <= 0xdfff) { + codepoints.push((before - 0xd800) * 0x400 + next - 0xdc00 + 0x10000); + i += 1; + continue; + } + } + codepoints.push(before); + } + return codepoints; +} +function saslprep({ unassigned_code_points, commonly_mapped_to_nothing, non_ASCII_space_characters, prohibited_characters, bidirectional_r_al, bidirectional_l, }, input, opts = {}) { + const mapping2space = non_ASCII_space_characters; + const mapping2nothing = commonly_mapped_to_nothing; + if (typeof input !== 'string') { + throw new TypeError('Expected string.'); + } + if (input.length === 0) { + return ''; + } + const mapped_input = toCodePoints(input) + .map((character) => (mapping2space.get(character) ? 0x20 : character)) + .filter((character) => !mapping2nothing.get(character)); + const normalized_input = String.fromCodePoint + .apply(null, mapped_input) + .normalize('NFKC'); + const normalized_map = toCodePoints(normalized_input); + const hasProhibited = normalized_map.some((character) => prohibited_characters.get(character)); + if (hasProhibited) { + throw new Error('Prohibited character, see https://tools.ietf.org/html/rfc4013#section-2.3'); + } + if (opts.allowUnassigned !== true) { + const hasUnassigned = normalized_map.some((character) => unassigned_code_points.get(character)); + if (hasUnassigned) { + throw new Error('Unassigned code point, see https://tools.ietf.org/html/rfc4013#section-2.5'); + } + } + const hasBidiRAL = normalized_map.some((character) => bidirectional_r_al.get(character)); + const hasBidiL = normalized_map.some((character) => bidirectional_l.get(character)); + if (hasBidiRAL && hasBidiL) { + throw new Error('String must not contain RandALCat and LCat at the same time,' + + ' see https://tools.ietf.org/html/rfc3454#section-6'); + } + const isFirstBidiRAL = bidirectional_r_al.get(getCodePoint(first(normalized_input))); + const isLastBidiRAL = bidirectional_r_al.get(getCodePoint(last(normalized_input))); + if (hasBidiRAL && !(isFirstBidiRAL && isLastBidiRAL)) { + throw new Error('Bidirectional RandALCat character must be the first and the last' + + ' character of the string, see https://tools.ietf.org/html/rfc3454#section-6'); + } + return normalized_input; +} +saslprep.saslprep = saslprep; +saslprep.default = saslprep; +module.exports = saslprep; +//# sourceMappingURL=index.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.js.map new file mode 100644 index 000000000..5b2b276dc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/index.js.map @@ -0,0 +1 @@ +{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";AAGA,MAAM,YAAY,GAAG,CAAC,SAAiB,EAAE,EAAE,CAAC,SAAS,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC;AACrE,MAAM,KAAK,GAAG,CAA2B,CAAI,EAAa,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;AAClE,MAAM,IAAI,GAAG,CAA2B,CAAI,EAAa,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;AAO5E,SAAS,YAAY,CAAC,KAAa;IACjC,MAAM,UAAU,GAAG,EAAE,CAAC;IACtB,MAAM,IAAI,GAAG,KAAK,CAAC,MAAM,CAAC;IAE1B,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,EAAE,CAAC,IAAI,CAAC,EAAE;QAChC,MAAM,MAAM,GAAG,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC;QAEnC,IAAI,MAAM,IAAI,MAAM,IAAI,MAAM,IAAI,MAAM,IAAI,IAAI,GAAG,CAAC,GAAG,CAAC,EAAE;YACxD,MAAM,IAAI,GAAG,KAAK,CAAC,UAAU,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;YAErC,IAAI,IAAI,IAAI,MAAM,IAAI,IAAI,IAAI,MAAM,EAAE;gBACpC,UAAU,CAAC,IAAI,CAAC,CAAC,MAAM,GAAG,MAAM,CAAC,GAAG,KAAK,GAAG,IAAI,GAAG,MAAM,GAAG,OAAO,CAAC,CAAC;gBACrE,CAAC,IAAI,CAAC,CAAC;gBACP,SAAS;aACV;SACF;QAED,UAAU,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;KACzB;IAED,OAAO,UAAU,CAAC;AACpB,CAAC;AAKD,SAAS,QAAQ,CACf,EACE,sBAAsB,EACtB,0BAA0B,EAC1B,0BAA0B,EAC1B,qBAAqB,EACrB,kBAAkB,EAClB,eAAe,GAC2B,EAC5C,KAAa,EACb,OAAsC,EAAE;IAQxC,MAAM,aAAa,GAAG,0BAA0B,CAAC;IAMjD,MAAM,eAAe,GAAG,0BAA0B,CAAC;IAEnD,IAAI,OAAO,KAAK,KAAK,QAAQ,EAAE;QAC7B,MAAM,IAAI,SAAS,CAAC,kBAAkB,CAAC,CAAC;KACzC;IAED,IAAI,KAAK,CAAC,MAAM,KAAK,CAAC,EAAE;QACtB,OAAO,EAAE,CAAC;KACX;IAGD,MAAM,YAAY,GAAG,YAAY,CAAC,KAAK,CAAC;SAErC,GAAG,CAAC,CAAC,SAAS,EAAE,EAAE,CAAC,CAAC,aAAa,CAAC,GAAG,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC;SAErE,MAAM,CAAC,CAAC,SAAS,EAAE,EAAE,CAAC,CAAC,eAAe,CAAC,GAAG,CAAC,SAAS,CAAC,CAAC,CAAC;IAG1D,MAAM,gBAAgB,GAAG,MAAM,CAAC,aAAa;SAC1C,KAAK,CAAC,IAAI,EAAE,YAAY,CAAC;SACzB,SAAS,CAAC,MAAM,CAAC,CAAC;IAErB,MAAM,cAAc,GAAG,YAAY,CAAC,gBAAgB,CAAC,CAAC;IAGtD,MAAM,aAAa,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACtD,qBAAqB,CAAC,GAAG,CAAC,SAAS,CAAC,CACrC,CAAC;IAEF,IAAI,aAAa,EAAE;QACjB,MAAM,IAAI,KAAK,CACb,2EAA2E,CAC5E,CAAC;KACH;IAGD,IAAI,IAAI,CAAC,eAAe,KAAK,IAAI,EAAE;QACjC,MAAM,aAAa,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACtD,sBAAsB,CAAC,GAAG,CAAC,SAAS,CAAC,CACtC,CAAC;QAEF,IAAI,aAAa,EAAE;YACjB,MAAM,IAAI,KAAK,CACb,4EAA4E,CAC7E,CAAC;SACH;KACF;IAID,MAAM,UAAU,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACnD,kBAAkB,CAAC,GAAG,CAAC,SAAS,CAAC,CAClC,CAAC;IAEF,MAAM,QAAQ,GAAG,cAAc,CAAC,IAAI,CAAC,CAAC,SAAS,EAAE,EAAE,CACjD,eAAe,CAAC,GAAG,CAAC,SAAS,CAAC,CAC/B,CAAC;IAIF,IAAI,UAAU,IAAI,QAAQ,EAAE;QAC1B,MAAM,IAAI,KAAK,CACb,8DAA8D;YAC5D,oDAAoD,CACvD,CAAC;KACH;IAQD,MAAM,cAAc,GAAG,kBAAkB,CAAC,GAAG,CAC3C,YAAY,CAAC,KAAK,CAAC,gBAAgB,CAAC,CAAE,CACvC,CAAC;IACF,MAAM,aAAa,GAAG,kBAAkB,CAAC,GAAG,CAC1C,YAAY,CAAC,IAAI,CAAC,gBAAgB,CAAC,CAAE,CACtC,CAAC;IAEF,IAAI,UAAU,IAAI,CAAC,CAAC,cAAc,IAAI,aAAa,CAAC,EAAE;QACpD,MAAM,IAAI,KAAK,CACb,kEAAkE;YAChE,6EAA6E,CAChF,CAAC;KACH;IAED,OAAO,gBAAgB,CAAC;AAC1B,CAAC;AAED,QAAQ,CAAC,QAAQ,GAAG,QAAQ,CAAC;AAC7B,QAAQ,CAAC,OAAO,GAAG,QAAQ,CAAC;AAC5B,iBAAS,QAAQ,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts new file mode 100644 index 000000000..8c675a008 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts @@ -0,0 +1,11 @@ +/// +import bitfield from 'sparse-bitfield'; +export declare function createMemoryCodePoints(data: Buffer): { + unassigned_code_points: bitfield.BitFieldInstance; + commonly_mapped_to_nothing: bitfield.BitFieldInstance; + non_ASCII_space_characters: bitfield.BitFieldInstance; + prohibited_characters: bitfield.BitFieldInstance; + bidirectional_r_al: bitfield.BitFieldInstance; + bidirectional_l: bitfield.BitFieldInstance; +}; +//# sourceMappingURL=memory-code-points.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts.map new file mode 100644 index 000000000..83b7b57da --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"memory-code-points.d.ts","sourceRoot":"","sources":["../src/memory-code-points.ts"],"names":[],"mappings":";AAAA,OAAO,QAAQ,MAAM,iBAAiB,CAAC;AAEvC,wBAAgB,sBAAsB,CAAC,IAAI,EAAE,MAAM;;;;;;;EA+BlD"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js new file mode 100644 index 000000000..05133de9f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js @@ -0,0 +1,33 @@ +"use strict"; +var __importDefault = (this && this.__importDefault) || function (mod) { + return (mod && mod.__esModule) ? mod : { "default": mod }; +}; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.createMemoryCodePoints = void 0; +const sparse_bitfield_1 = __importDefault(require("sparse-bitfield")); +function createMemoryCodePoints(data) { + let offset = 0; + function read() { + const size = data.readUInt32BE(offset); + offset += 4; + const codepoints = data.slice(offset, offset + size); + offset += size; + return (0, sparse_bitfield_1.default)({ buffer: codepoints }); + } + const unassigned_code_points = read(); + const commonly_mapped_to_nothing = read(); + const non_ASCII_space_characters = read(); + const prohibited_characters = read(); + const bidirectional_r_al = read(); + const bidirectional_l = read(); + return { + unassigned_code_points, + commonly_mapped_to_nothing, + non_ASCII_space_characters, + prohibited_characters, + bidirectional_r_al, + bidirectional_l, + }; +} +exports.createMemoryCodePoints = createMemoryCodePoints; +//# sourceMappingURL=memory-code-points.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js.map new file mode 100644 index 000000000..0bb5a144a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/memory-code-points.js.map @@ -0,0 +1 @@ +{"version":3,"file":"memory-code-points.js","sourceRoot":"","sources":["../src/memory-code-points.ts"],"names":[],"mappings":";;;;;;AAAA,sEAAuC;AAEvC,SAAgB,sBAAsB,CAAC,IAAY;IACjD,IAAI,MAAM,GAAG,CAAC,CAAC;IAKf,SAAS,IAAI;QACX,MAAM,IAAI,GAAG,IAAI,CAAC,YAAY,CAAC,MAAM,CAAC,CAAC;QACvC,MAAM,IAAI,CAAC,CAAC;QAEZ,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,MAAM,EAAE,MAAM,GAAG,IAAI,CAAC,CAAC;QACrD,MAAM,IAAI,IAAI,CAAC;QAEf,OAAO,IAAA,yBAAQ,EAAC,EAAE,MAAM,EAAE,UAAU,EAAE,CAAC,CAAC;IAC1C,CAAC;IAED,MAAM,sBAAsB,GAAG,IAAI,EAAE,CAAC;IACtC,MAAM,0BAA0B,GAAG,IAAI,EAAE,CAAC;IAC1C,MAAM,0BAA0B,GAAG,IAAI,EAAE,CAAC;IAC1C,MAAM,qBAAqB,GAAG,IAAI,EAAE,CAAC;IACrC,MAAM,kBAAkB,GAAG,IAAI,EAAE,CAAC;IAClC,MAAM,eAAe,GAAG,IAAI,EAAE,CAAC;IAE/B,OAAO;QACL,sBAAsB;QACtB,0BAA0B;QAC1B,0BAA0B;QAC1B,qBAAqB;QACrB,kBAAkB;QAClB,eAAe;KAChB,CAAC;AACJ,CAAC;AA/BD,wDA+BC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.d.ts new file mode 100644 index 000000000..0208c8ed2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.d.ts @@ -0,0 +1,10 @@ +declare function saslprep(input: string, opts?: { + allowUnassigned?: boolean; +}): string; +declare namespace saslprep { + export var saslprep: typeof import("./node"); + var _a: typeof import("./node"); + export { _a as default }; +} +export = saslprep; +//# sourceMappingURL=node.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.d.ts.map new file mode 100644 index 000000000..3032ff996 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"node.d.ts","sourceRoot":"","sources":["../src/node.ts"],"names":[],"mappings":"AAMA,iBAAS,QAAQ,CAAC,KAAK,EAAE,MAAM,EAAE,IAAI,CAAC,EAAE;IAAE,eAAe,CAAC,EAAE,OAAO,CAAA;CAAE,GAAG,MAAM,CAE7E;kBAFQ,QAAQ;;;;;AAOjB,SAAS,QAAQ,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.js new file mode 100644 index 000000000..1007f86bd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.js @@ -0,0 +1,15 @@ +"use strict"; +var __importDefault = (this && this.__importDefault) || function (mod) { + return (mod && mod.__esModule) ? mod : { "default": mod }; +}; +const index_1 = __importDefault(require("./index")); +const memory_code_points_1 = require("./memory-code-points"); +const code_points_data_1 = __importDefault(require("./code-points-data")); +const codePoints = (0, memory_code_points_1.createMemoryCodePoints)(code_points_data_1.default); +function saslprep(input, opts) { + return (0, index_1.default)(codePoints, input, opts); +} +saslprep.saslprep = saslprep; +saslprep.default = saslprep; +module.exports = saslprep; +//# sourceMappingURL=node.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.js.map new file mode 100644 index 000000000..107ee6485 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/node.js.map @@ -0,0 +1 @@ +{"version":3,"file":"node.js","sourceRoot":"","sources":["../src/node.ts"],"names":[],"mappings":";;;;AAAA,oDAAgC;AAChC,6DAA8D;AAC9D,0EAAsC;AAEtC,MAAM,UAAU,GAAG,IAAA,2CAAsB,EAAC,0BAAI,CAAC,CAAC;AAEhD,SAAS,QAAQ,CAAC,KAAa,EAAE,IAAoC;IACnE,OAAO,IAAA,eAAS,EAAC,UAAU,EAAE,KAAK,EAAE,IAAI,CAAC,CAAC;AAC5C,CAAC;AAED,QAAQ,CAAC,QAAQ,GAAG,QAAQ,CAAC;AAC7B,QAAQ,CAAC,OAAO,GAAG,QAAQ,CAAC;AAE5B,iBAAS,QAAQ,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.d.ts b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.d.ts new file mode 100644 index 000000000..3a0466ecd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.d.ts @@ -0,0 +1,2 @@ +export declare function range(from: number, to: number): number[]; +//# sourceMappingURL=util.d.ts.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.d.ts.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.d.ts.map new file mode 100644 index 000000000..50c716780 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.d.ts.map @@ -0,0 +1 @@ +{"version":3,"file":"util.d.ts","sourceRoot":"","sources":["../src/util.ts"],"names":[],"mappings":"AAGA,wBAAgB,KAAK,CAAC,IAAI,EAAE,MAAM,EAAE,EAAE,EAAE,MAAM,GAAG,MAAM,EAAE,CAQxD"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.js b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.js new file mode 100644 index 000000000..f679cab00 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.js @@ -0,0 +1,12 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.range = void 0; +function range(from, to) { + const list = new Array(to - from + 1); + for (let i = 0; i < list.length; i += 1) { + list[i] = from + i; + } + return list; +} +exports.range = range; +//# sourceMappingURL=util.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.js.map b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.js.map new file mode 100644 index 000000000..1bab68133 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/dist/util.js.map @@ -0,0 +1 @@ +{"version":3,"file":"util.js","sourceRoot":"","sources":["../src/util.ts"],"names":[],"mappings":";;;AAGA,SAAgB,KAAK,CAAC,IAAY,EAAE,EAAU;IAE5C,MAAM,IAAI,GAAG,IAAI,KAAK,CAAC,EAAE,GAAG,IAAI,GAAG,CAAC,CAAC,CAAC;IAEtC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,MAAM,EAAE,CAAC,IAAI,CAAC,EAAE;QACvC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,GAAG,CAAC,CAAC;KACpB;IACD,OAAO,IAAI,CAAC;AACd,CAAC;AARD,sBAQC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/package.json b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/package.json new file mode 100644 index 000000000..4d72c07d6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/package.json @@ -0,0 +1,87 @@ +{ + "name": "@mongodb-js/saslprep", + "description": "SASLprep: Stringprep Profile for User Names and Passwords, rfc4013", + "keywords": [ + "sasl", + "saslprep", + "stringprep", + "rfc4013", + "4013" + ], + "author": "Dmitry Tsvettsikh ", + "publishConfig": { + "access": "public" + }, + "main": "dist/node.js", + "bugs": { + "url": "https://jira.mongodb.org/projects/COMPASS/issues", + "email": "compass@mongodb.com" + }, + "homepage": "https://github.com/mongodb-js/devtools-shared/tree/main/packages/saslprep", + "version": "1.1.7", + "repository": { + "type": "git", + "url": "https://github.com/mongodb-js/devtools-shared.git" + }, + "files": [ + "dist" + ], + "license": "MIT", + "exports": { + "browser": { + "types": "./dist/browser.d.ts", + "default": "./dist/browser.js" + }, + "import": { + "types": "./dist/node.d.ts", + "default": "./dist/.esm-wrapper.mjs" + }, + "require": { + "types": "./dist/node.d.ts", + "default": "./dist/node.js" + } + }, + "types": "./dist/node.d.ts", + "scripts": { + "gen-code-points": "ts-node src/generate-code-points.ts src/code-points-data.ts src/code-points-data-browser.ts", + "bootstrap": "npm run compile", + "prepublishOnly": "npm run compile", + "compile": "npm run gen-code-points && tsc -p tsconfig.json && gen-esm-wrapper . ./dist/.esm-wrapper.mjs", + "typecheck": "tsc --noEmit", + "eslint": "eslint", + "prettier": "prettier", + "lint": "npm run eslint . && npm run prettier -- --check .", + "depcheck": "depcheck", + "check": "npm run typecheck && npm run lint && npm run depcheck", + "check-ci": "npm run check", + "test": "mocha", + "test-cov": "nyc -x \"**/*.spec.*\" --reporter=lcov --reporter=text --reporter=html npm run test", + "test-watch": "npm run test -- --watch", + "test-ci": "npm run test-cov", + "reformat": "npm run prettier -- --write ." + }, + "dependencies": { + "sparse-bitfield": "^3.0.3" + }, + "devDependencies": { + "@mongodb-js/eslint-config-devtools": "0.9.10", + "@mongodb-js/mocha-config-devtools": "^1.0.3", + "@mongodb-js/prettier-config-devtools": "^1.0.1", + "@mongodb-js/tsconfig-devtools": "^1.0.2", + "@types/chai": "^4.2.21", + "@types/mocha": "^9.0.0", + "@types/node": "^17.0.35", + "@types/sinon-chai": "^3.2.5", + "@types/sparse-bitfield": "^3.0.1", + "chai": "^4.3.6", + "depcheck": "^1.4.1", + "eslint": "^7.25.0", + "gen-esm-wrapper": "^1.1.0", + "mocha": "^8.4.0", + "nyc": "^15.1.0", + "prettier": "^2.3.2", + "sinon": "^9.2.3", + "typescript": "^5.0.4" + }, + "gitHead": "ff425df9ea4651f7c4c24acc30cbf06d06007d4a" +} diff --git a/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/readme.md b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/readme.md new file mode 100644 index 000000000..28539edaa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@mongodb-js/saslprep/readme.md @@ -0,0 +1,29 @@ +# saslprep + +_Note: This is a fork of the original [`saslprep`](https://www.npmjs.com/package/saslprep) npm package +and provides equivalent functionality._ + +Stringprep Profile for User Names and Passwords, [rfc4013](https://tools.ietf.org/html/rfc4013) + +### Usage + +```js +const saslprep = require('@mongodb-js/saslprep'); + +saslprep('password\u00AD'); // password +saslprep('password\u0007'); // Error: prohibited character +``` + +### API + +##### `saslprep(input: String, opts: Options): String` + +Normalize user name or password. + +##### `Options.allowUnassigned: bool` + +A special behavior for unassigned code points, see https://tools.ietf.org/html/rfc4013#section-2.5. Disabled by default. + +## License + +MIT, 2017-2019 (c) Dmitriy Tsvettsikh diff --git a/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/LICENSE b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/LICENSE new file mode 100644 index 000000000..9e841e7a2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/LICENSE @@ -0,0 +1,21 @@ + MIT License + + Copyright (c) Microsoft Corporation. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE diff --git a/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/README.md b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/README.md new file mode 100644 index 000000000..a0f3f9def --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/README.md @@ -0,0 +1,15 @@ +# Installation +> `npm install --save @types/webidl-conversions` + +# Summary +This package contains type definitions for webidl-conversions (https://github.com/jsdom/webidl-conversions#readme). + +# Details +Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/webidl-conversions. + +### Additional Details + * Last updated: Tue, 07 Nov 2023 15:11:36 GMT + * Dependencies: none + +# Credits +These definitions were written by [ExE Boss](https://github.com/ExE-Boss), and [BendingBender](https://github.com/BendingBender). diff --git a/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/index.d.ts b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/index.d.ts new file mode 100644 index 000000000..bcf395ab2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/index.d.ts @@ -0,0 +1,91 @@ +declare namespace WebIDLConversions { + interface Globals { + [key: string]: unknown; + + Number: (value?: unknown) => number; + String: (value?: unknown) => string; + TypeError: new(message?: string) => TypeError; + } + + interface Options { + context?: string | undefined; + globals?: Globals | undefined; + } + + interface IntegerOptions extends Options { + enforceRange?: boolean | undefined; + clamp?: boolean | undefined; + } + + interface StringOptions extends Options { + treatNullAsEmptyString?: boolean | undefined; + } + + interface BufferSourceOptions extends Options { + allowShared?: boolean | undefined; + } + + type IntegerConversion = (V: unknown, opts?: IntegerOptions) => number; + type StringConversion = (V: unknown, opts?: StringOptions) => string; + type NumberConversion = (V: unknown, opts?: Options) => number; +} + +declare const WebIDLConversions: { + any(V: V, opts?: WebIDLConversions.Options): V; + undefined(V?: unknown, opts?: WebIDLConversions.Options): void; + boolean(V: unknown, opts?: WebIDLConversions.Options): boolean; + + byte(V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + octet(V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + + short(V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + ["unsigned short"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + + long(V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + ["unsigned long"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + + ["long long"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + ["unsigned long long"](V: unknown, opts?: WebIDLConversions.IntegerOptions): number; + + double(V: unknown, opts?: WebIDLConversions.Options): number; + ["unrestricted double"](V: unknown, opts?: WebIDLConversions.Options): number; + + float(V: unknown, opts?: WebIDLConversions.Options): number; + ["unrestricted float"](V: unknown, opts?: WebIDLConversions.Options): number; + + DOMString(V: unknown, opts?: WebIDLConversions.StringOptions): string; + ByteString(V: unknown, opts?: WebIDLConversions.StringOptions): string; + USVString(V: unknown, opts?: WebIDLConversions.StringOptions): string; + + object(V: V, opts?: WebIDLConversions.Options): V extends object ? V : V & object; + ArrayBuffer( + V: unknown, + opts?: WebIDLConversions.BufferSourceOptions & { allowShared?: false | undefined }, + ): ArrayBuffer; + ArrayBuffer(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): ArrayBufferLike; + DataView(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): DataView; + + Int8Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Int8Array; + Int16Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Int16Array; + Int32Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Int32Array; + + Uint8Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint8Array; + Uint16Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint16Array; + Uint32Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint32Array; + Uint8ClampedArray(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Uint8ClampedArray; + + Float32Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Float32Array; + Float64Array(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): Float64Array; + + ArrayBufferView(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): ArrayBufferView; + BufferSource( + V: unknown, + opts?: WebIDLConversions.BufferSourceOptions & { allowShared?: false | undefined }, + ): ArrayBuffer | ArrayBufferView; + BufferSource(V: unknown, opts?: WebIDLConversions.BufferSourceOptions): ArrayBufferLike | ArrayBufferView; + + DOMTimeStamp(V: unknown, opts?: WebIDLConversions.Options): number; +}; + +// This can't use ES6 style exports, as those can't have spaces in export names. +export = WebIDLConversions; diff --git a/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/package.json b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/package.json new file mode 100644 index 000000000..21fdb9586 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/webidl-conversions/package.json @@ -0,0 +1,30 @@ +{ + "name": "@types/webidl-conversions", + "version": "7.0.3", + "description": "TypeScript definitions for webidl-conversions", + "homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/webidl-conversions", + "license": "MIT", + "contributors": [ + { + "name": "ExE Boss", + "githubUsername": "ExE-Boss", + "url": "https://github.com/ExE-Boss" + }, + { + "name": "BendingBender", + "githubUsername": "BendingBender", + "url": "https://github.com/BendingBender" + } + ], + "main": "", + "types": "index.d.ts", + "repository": { + "type": "git", + "url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git", + "directory": "types/webidl-conversions" + }, + "scripts": {}, + "dependencies": {}, + "typesPublisherContentHash": "ff1514e10869784e8b7cca9c4099a4213d3f14b48c198b1bf116300df94bf608", + "typeScriptVersion": "4.5" +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/LICENSE b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/LICENSE new file mode 100644 index 000000000..9e841e7a2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/LICENSE @@ -0,0 +1,21 @@ + MIT License + + Copyright (c) Microsoft Corporation. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/README.md b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/README.md new file mode 100644 index 000000000..75b056cf0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/README.md @@ -0,0 +1,15 @@ +# Installation +> `npm install --save @types/whatwg-url` + +# Summary +This package contains type definitions for whatwg-url (https://github.com/jsdom/whatwg-url#readme). + +# Details +Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/whatwg-url. + +### Additional Details + * Last updated: Sat, 18 May 2024 21:06:54 GMT + * Dependencies: [@types/webidl-conversions](https://npmjs.com/package/@types/webidl-conversions) + +# Credits +These definitions were written by [Alexander Marks](https://github.com/aomarks), [ExE Boss](https://github.com/ExE-Boss), and [BendingBender](https://github.com/BendingBender). diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/index.d.ts b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/index.d.ts new file mode 100644 index 000000000..7c554cca9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/index.d.ts @@ -0,0 +1,169 @@ +/// +/** https://url.spec.whatwg.org/#url-representation */ +export interface URLRecord { + scheme: string; + username: string; + password: string; + host: string | number | IPv6Address | null; + port: number | null; + path: string | string[]; + query: string | null; + fragment: string | null; +} + +/** https://url.spec.whatwg.org/#concept-ipv6 */ +export type IPv6Address = [number, number, number, number, number, number, number, number]; + +/** https://url.spec.whatwg.org/#url-class */ +export class URL { + constructor(url: string, base?: string | URL); + + get href(): string; + set href(V: string); + + get origin(): string; + + get protocol(): string; + set protocol(V: string); + + get username(): string; + set username(V: string); + + get password(): string; + set password(V: string); + + get host(): string; + set host(V: string); + + get hostname(): string; + set hostname(V: string); + + get port(): string; + set port(V: string); + + get pathname(): string; + set pathname(V: string); + + get search(): string; + set search(V: string); + + get searchParams(): URLSearchParams; + + get hash(): string; + set hash(V: string); + + toJSON(): string; + + readonly [Symbol.toStringTag]: "URL"; +} + +/** https://url.spec.whatwg.org/#interface-urlsearchparams */ +export class URLSearchParams { + constructor( + init?: + | ReadonlyArray + | Iterable + | { readonly [name: string]: string } + | string, + ); + + append(name: string, value: string): void; + delete(name: string): void; + get(name: string): string | null; + getAll(name: string): string[]; + has(name: string): boolean; + set(name: string, value: string): void; + sort(): void; + + keys(): IterableIterator; + values(): IterableIterator; + entries(): IterableIterator<[name: string, value: string]>; + forEach( + callback: (this: THIS_ARG, value: string, name: string, searchParams: this) => void, + thisArg?: THIS_ARG, + ): void; + + readonly [Symbol.toStringTag]: "URLSearchParams"; + [Symbol.iterator](): IterableIterator<[name: string, value: string]>; +} + +/** https://url.spec.whatwg.org/#concept-url-parser */ +export function parseURL(input: string, options?: { readonly baseURL?: URLRecord | undefined }): URLRecord | null; + +/** https://url.spec.whatwg.org/#concept-basic-url-parser */ +export function basicURLParse( + input: string, + options?: { + baseURL?: URLRecord | undefined; + url?: URLRecord | undefined; + stateOverride?: StateOverride | undefined; + }, +): URLRecord | null; + +/** https://url.spec.whatwg.org/#scheme-start-state */ +export type StateOverride = + | "scheme start" + | "scheme" + | "no scheme" + | "special relative or authority" + | "path or authority" + | "relative" + | "relative slash" + | "special authority slashes" + | "special authority ignore slashes" + | "authority" + | "host" + | "hostname" + | "port" + | "file" + | "file slash" + | "file host" + | "path start" + | "path" + | "opaque path" + | "query" + | "fragment"; + +/** https://url.spec.whatwg.org/#concept-url-serializer */ +export function serializeURL(urlRecord: URLRecord, excludeFragment?: boolean): string; + +/** https://url.spec.whatwg.org/#concept-host-serializer */ +export function serializeHost(host: string | number | IPv6Address): string; + +/** https://url.spec.whatwg.org/#url-path-serializer */ +export function serializePath(urlRecord: URLRecord): string; + +/** https://url.spec.whatwg.org/#serialize-an-integer */ +export function serializeInteger(number: number): string; + +/** https://html.spec.whatwg.org#ascii-serialisation-of-an-origin */ +export function serializeURLOrigin(urlRecord: URLRecord): string; + +/** https://url.spec.whatwg.org/#set-the-username */ +export function setTheUsername(urlRecord: URLRecord, username: string): void; + +/** https://url.spec.whatwg.org/#set-the-password */ +export function setThePassword(urlRecord: URLRecord, password: string): void; + +/** https://url.spec.whatwg.org/#url-opaque-path */ +export function hasAnOpaquePath(urlRecord: URLRecord): boolean; + +/** https://url.spec.whatwg.org/#cannot-have-a-username-password-port */ +export function cannotHaveAUsernamePasswordPort(urlRecord: URLRecord): boolean; + +/** https://url.spec.whatwg.org/#percent-decode */ +export function percentDecodeBytes(buffer: TypedArray): Uint8Array; + +/** https://url.spec.whatwg.org/#string-percent-decode */ +export function percentDecodeString(string: string): Uint8Array; + +export type TypedArray = + | Uint8Array + | Uint8ClampedArray + | Uint16Array + | Uint32Array + | Int8Array + | Int16Array + | Int32Array + | Float32Array + | Float64Array; diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URL-impl.d.ts b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URL-impl.d.ts new file mode 100644 index 000000000..c0bb59843 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URL-impl.d.ts @@ -0,0 +1,22 @@ +import { Globals } from "webidl-conversions"; +import { implementation as URLSearchParamsImpl } from "./URLSearchParams-impl"; + +declare class URLImpl { + constructor(globalObject: Globals, constructorArgs: readonly [url: string, base?: string]); + + href: string; + readonly origin: string; + protocol: string; + username: string; + password: string; + host: string; + hostname: string; + port: string; + pathname: string; + search: string; + readonly searchParams: URLSearchParamsImpl; + hash: string; + + toJSON(): string; +} +export { URLImpl as implementation }; diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URL.d.ts b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URL.d.ts new file mode 100644 index 000000000..85474a702 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URL.d.ts @@ -0,0 +1,66 @@ +import { URL } from "../index"; +import { implementation as URLImpl } from "./URL-impl"; + +/** + * Checks whether `obj` is a `URL` object with an implementation + * provided by this package. + */ +export function is(obj: unknown): obj is URL; + +/** + * Checks whether `obj` is a `URLImpl` WebIDL2JS implementation object + * provided by this package. + */ +export function isImpl(obj: unknown): obj is URLImpl; + +/** + * Converts the `URL` wrapper into a `URLImpl` object. + * + * @throws {TypeError} If `obj` is not a `URL` wrapper instance provided by this package. + */ +export function convert(globalObject: object, obj: unknown, { context }?: { context: string }): URLImpl; + +/** + * Creates a new `URL` instance. + * + * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor + * registry or a `URL` constructor provided by this package + * in the WebIDL2JS constructor registry. + */ +export function create(globalObject: object, constructorArgs: readonly [url: string, base?: string]): URL; + +/** + * Calls `create()` and returns the internal `URLImpl`. + * + * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor + * registry or a `URL` constructor provided by this package + * in the WebIDL2JS constructor registry. + */ +export function createImpl(globalObject: object, constructorArgs: readonly [url: string, base?: string]): URLImpl; + +/** + * Initializes the `URL` instance, called by `create()`. + * + * Useful when manually sub-classing a non-constructable wrapper object. + */ +export function setup( + obj: T, + globalObject: object, + constructorArgs: readonly [url: string, base?: string], +): T; + +/** + * Creates a new `URL` object without runing the constructor steps. + * + * Useful when implementing specifications that initialize objects + * in different ways than their constructors do. + */ +declare function _new(globalObject: object, newTarget?: new(url: string, base?: string) => URL): URLImpl; +export { _new as new }; + +/** + * Installs the `URL` constructor onto the `globalObject`. + * + * @throws {Error} If the target `globalObject` doesn't have an `Error` constructor. + */ +export function install(globalObject: object, globalNames: readonly string[]): void; diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URLSearchParams-impl.d.ts b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URLSearchParams-impl.d.ts new file mode 100644 index 000000000..cf5070117 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URLSearchParams-impl.d.ts @@ -0,0 +1,20 @@ +declare class URLSearchParamsImpl { + constructor( + globalObject: object, + constructorArgs: readonly [ + init?: ReadonlyArray | { readonly [name: string]: string } | string, + ], + privateData: { readonly doNotStripQMark?: boolean | undefined }, + ); + + append(name: string, value: string): void; + delete(name: string): void; + get(name: string): string | null; + getAll(name: string): string[]; + has(name: string): boolean; + set(name: string, value: string): void; + sort(): void; + + [Symbol.iterator](): IterableIterator<[name: string, value: string]>; +} +export { URLSearchParamsImpl as implementation }; diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URLSearchParams.d.ts b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URLSearchParams.d.ts new file mode 100644 index 000000000..8b35d1d1e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/lib/URLSearchParams.d.ts @@ -0,0 +1,92 @@ +import { URLSearchParams } from "../index"; +import { implementation as URLSearchParamsImpl } from "./URLSearchParams-impl"; + +/** + * Checks whether `obj` is a `URLSearchParams` object with an implementation + * provided by this package. + */ +export function is(obj: unknown): obj is URLSearchParams; + +/** + * Checks whether `obj` is a `URLSearchParamsImpl` WebIDL2JS implementation object + * provided by this package. + */ +export function isImpl(obj: unknown): obj is URLSearchParamsImpl; + +/** + * Converts the `URLSearchParams` wrapper into a `URLSearchParamsImpl` object. + * + * @throws {TypeError} If `obj` is not a `URLSearchParams` wrapper instance provided by this package. + */ +export function convert(globalObject: object, obj: unknown, { context }?: { context: string }): URLSearchParamsImpl; + +export function createDefaultIterator( + globalObject: object, + target: URLSearchParamsImpl, + kind: TIteratorKind, +): IterableIterator; + +/** + * Creates a new `URLSearchParams` instance. + * + * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor + * registry or a `URLSearchParams` constructor provided by this package + * in the WebIDL2JS constructor registry. + */ +export function create( + globalObject: object, + constructorArgs?: readonly [ + init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string, + ], + privateData?: { doNotStripQMark?: boolean | undefined }, +): URLSearchParams; + +/** + * Calls `create()` and returns the internal `URLSearchParamsImpl`. + * + * @throws {Error} If the `globalObject` doesn't have a WebIDL2JS constructor + * registry or a `URLSearchParams` constructor provided by this package + * in the WebIDL2JS constructor registry. + */ +export function createImpl( + globalObject: object, + constructorArgs?: readonly [ + init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string, + ], + privateData?: { doNotStripQMark?: boolean | undefined }, +): URLSearchParamsImpl; + +/** + * Initializes the `URLSearchParams` instance, called by `create()`. + * + * Useful when manually sub-classing a non-constructable wrapper object. + */ +export function setup( + obj: T, + globalObject: object, + constructorArgs?: readonly [ + init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string, + ], + privateData?: { doNotStripQMark?: boolean | undefined }, +): T; + +/** + * Creates a new `URLSearchParams` object without runing the constructor steps. + * + * Useful when implementing specifications that initialize objects + * in different ways than their constructors do. + */ +declare function _new( + globalObject: object, + newTarget?: new( + init: ReadonlyArray<[name: string, value: string]> | { readonly [name: string]: string } | string, + ) => URLSearchParams, +): URLSearchParamsImpl; +export { _new as new }; + +/** + * Installs the `URLSearchParams` constructor onto the `globalObject`. + * + * @throws {Error} If the target `globalObject` doesn't have an `Error` constructor. + */ +export function install(globalObject: object, globalNames: readonly string[]): void; diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/package.json b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/package.json new file mode 100644 index 000000000..418e8b676 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/package.json @@ -0,0 +1,37 @@ +{ + "name": "@types/whatwg-url", + "version": "11.0.5", + "description": "TypeScript definitions for whatwg-url", + "homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/whatwg-url", + "license": "MIT", + "contributors": [ + { + "name": "Alexander Marks", + "githubUsername": "aomarks", + "url": "https://github.com/aomarks" + }, + { + "name": "ExE Boss", + "githubUsername": "ExE-Boss", + "url": "https://github.com/ExE-Boss" + }, + { + "name": "BendingBender", + "githubUsername": "BendingBender", + "url": "https://github.com/BendingBender" + } + ], + "main": "", + "types": "index.d.ts", + "repository": { + "type": "git", + "url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git", + "directory": "types/whatwg-url" + }, + "scripts": {}, + "dependencies": { + "@types/webidl-conversions": "*" + }, + "typesPublisherContentHash": "c6cfac1bbd7b2ef315fdad11fc9bdb6a8f0ae2b1c3ff057cfca7bc9880eeaa9d", + "typeScriptVersion": "4.7" +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/@types/whatwg-url/webidl2js-wrapper.d.ts b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/webidl2js-wrapper.d.ts new file mode 100644 index 000000000..96029b766 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/@types/whatwg-url/webidl2js-wrapper.d.ts @@ -0,0 +1,4 @@ +import * as URL from "./lib/URL"; +import * as URLSearchParams from "./lib/URLSearchParams"; + +export { URL, URLSearchParams }; diff --git a/week-3/04-course-app-hard/node_modules/bson/LICENSE.md b/week-3/04-course-app-hard/node_modules/bson/LICENSE.md new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/LICENSE.md @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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This applies to the git tag as well as all release packages provided as part of a GitHub release. To verify the provided packages, download the key and import it using gpg: + +```shell +gpg --import node-driver.asc +``` + +The GitHub release contains a detached signature file for the NPM package (named +`bson-X.Y.Z.tgz.sig`). + +The following command returns the link npm package. +```shell +npm view bson@vX.Y.Z dist.tarball +``` + +Using the result of the above command, a `curl` command can return the official npm package for the release. + +To verify the integrity of the downloaded package, run the following command: +```shell +gpg --verify bson-X.Y.Z.tgz.sig bson-X.Y.Z.tgz +``` + +>[!Note] +No verification is done when using npm to install the package. The contents of the Github tarball and npm's tarball are identical. + +## Bugs / Feature Requests + +Think you've found a bug? Want to see a new feature in `bson`? Please open a case in our issue management tool, JIRA: + +1. Create an account and login: [jira.mongodb.org](https://jira.mongodb.org) +2. Navigate to the NODE project: [jira.mongodb.org/browse/NODE](https://jira.mongodb.org/browse/NODE) +3. Click **Create Issue** - Please provide as much information as possible about the issue and how to reproduce it. + +Bug reports in JIRA for the NODE driver project are **public**. + +## Usage + +To build a new version perform the following operations: + +``` +npm install +npm run build +``` + +### Node.js or Bundling Usage + +When using a bundler or Node.js you can import bson using the package name: + +```js +import { BSON, EJSON, ObjectId } from 'bson'; +// or: +// const { BSON, EJSON, ObjectId } = require('bson'); + +const bytes = BSON.serialize({ _id: new ObjectId() }); +console.log(bytes); +const doc = BSON.deserialize(bytes); +console.log(EJSON.stringify(doc)); +// {"_id":{"$oid":"..."}} +``` + +### Browser Usage + +If you are working directly in the browser without a bundler please use the `.mjs` bundle like so: + +```html + +``` + +## Installation + +```sh +npm install bson +``` + +### MongoDB Node.js Driver Version Compatibility + +Only the following version combinations with the [MongoDB Node.js Driver](https://github.com/mongodb/node-mongodb-native) are considered stable. + +| | `bson@1.x` | `bson@4.x` | `bson@5.x` | `bson@6.x` | +| ------------- | ---------- | ---------- | ---------- | ---------- | +| `mongodb@6.x` | N/A | N/A | N/A | ✓ | +| `mongodb@5.x` | N/A | N/A | ✓ | N/A | +| `mongodb@4.x` | N/A | ✓ | N/A | N/A | +| `mongodb@3.x` | ✓ | N/A | N/A | N/A | + +## Documentation + +### BSON + +[API documentation](https://mongodb.github.io/node-mongodb-native/Next/modules/BSON.html) + + + +### EJSON + +- [EJSON](#EJSON) + + - [.parse(text, [options])](#EJSON.parse) + + - [.stringify(value, [replacer], [space], [options])](#EJSON.stringify) + + - [.serialize(bson, [options])](#EJSON.serialize) + + - [.deserialize(ejson, [options])](#EJSON.deserialize) + + + +#### _EJSON_.parse(text, [options]) + +| Param | Type | Default | Description | +| ----------------- | -------------------- | ----------------- | ---------------------------------------------------------------------------------- | +| text | string | | | +| [options] | object | | Optional settings | +| [options.relaxed] | boolean | true | Attempt to return native JS types where possible, rather than BSON types (if true) | + +Parse an Extended JSON string, constructing the JavaScript value or object described by that +string. + +**Example** + +```js +const { EJSON } = require('bson'); +const text = '{ "int32": { "$numberInt": "10" } }'; + +// prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } } +console.log(EJSON.parse(text, { relaxed: false })); + +// prints { int32: 10 } +console.log(EJSON.parse(text)); +``` + + + +#### _EJSON_.stringify(value, [replacer], [space], [options]) + +| Param | Type | Default | Description | +| ----------------- | ------------------------------------------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | +| value | object | | The value to convert to extended JSON | +| [replacer] | function \| array | | A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string | +| [space] | string \| number | | A String or Number object that's used to insert white space into the output JSON string for readability purposes. | +| [options] | object | | Optional settings | +| [options.relaxed] | boolean | true | Enabled Extended JSON's `relaxed` mode | +| [options.legacy] | boolean | true | Output in Extended JSON v1 | + +Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer +function is specified or optionally including only the specified properties if a replacer array +is specified. + +**Example** + +```js +const { EJSON } = require('bson'); +const Int32 = require('mongodb').Int32; +const doc = { int32: new Int32(10) }; + +// prints '{"int32":{"$numberInt":"10"}}' +console.log(EJSON.stringify(doc, { relaxed: false })); + +// prints '{"int32":10}' +console.log(EJSON.stringify(doc)); +``` + + + +#### _EJSON_.serialize(bson, [options]) + +| Param | Type | Description | +| --------- | ------------------- | ---------------------------------------------------- | +| bson | object | The object to serialize | +| [options] | object | Optional settings passed to the `stringify` function | + +Serializes an object to an Extended JSON string, and reparse it as a JavaScript object. + + + +#### _EJSON_.deserialize(ejson, [options]) + +| Param | Type | Description | +| --------- | ------------------- | -------------------------------------------- | +| ejson | object | The Extended JSON object to deserialize | +| [options] | object | Optional settings passed to the parse method | + +Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types + +## Error Handling + +It is our recommendation to use `BSONError.isBSONError()` checks on errors and to avoid relying on parsing `error.message` and `error.name` strings in your code. We guarantee `BSONError.isBSONError()` checks will pass according to semver guidelines, but errors may be sub-classed or their messages may change at any time, even patch releases, as we see fit to increase the helpfulness of the errors. + +Any new errors we add to the driver will directly extend an existing error class and no existing error will be moved to a different parent class outside of a major release. +This means `BSONError.isBSONError()` will always be able to accurately capture the errors that our BSON library throws. + +Hypothetical example: A collection in our Db has an issue with UTF-8 data: + +```ts +let documentCount = 0; +const cursor = collection.find({}, { utf8Validation: true }); +try { + for await (const doc of cursor) documentCount += 1; +} catch (error) { + if (BSONError.isBSONError(error)) { + console.log(`Found the troublemaker UTF-8!: ${documentCount} ${error.message}`); + return documentCount; + } + throw error; +} +``` + +## React Native + +BSON vendors the required polyfills for `TextEncoder`, `TextDecoder`, `atob`, `btoa` imported from React Native and therefore doesn't expect users to polyfill these. One additional polyfill, `crypto.getRandomValues` is recommended and can be installed with the following command: + +```sh +npm install --save react-native-get-random-values +``` + +The following snippet should be placed at the top of the entrypoint (by default this is the root `index.js` file) for React Native projects using the BSON library. These lines must be placed for any code that imports `BSON`. + +```typescript +// Required Polyfills For ReactNative +import 'react-native-get-random-values'; +``` + +Finally, import the `BSON` library like so: + +```typescript +import { BSON, EJSON } from 'bson'; +``` + +This will cause React Native to import the `node_modules/bson/lib/bson.rn.cjs` bundle (see the `"react-native"` setting we have in the `"exports"` section of our [package.json](./package.json).) + +### Technical Note about React Native module import + +The `"exports"` definition in our `package.json` will result in BSON's CommonJS bundle being imported in a React Native project instead of the ES module bundle. Importing the CommonJS bundle is necessary because BSON's ES module bundle of BSON uses top-level await, which is not supported syntax in [React Native's runtime hermes](https://hermesengine.dev/). + +## FAQ + +#### Why does `undefined` get converted to `null`? + +The `undefined` BSON type has been [deprecated for many years](http://bsonspec.org/spec.html), so this library has dropped support for it. Use the `ignoreUndefined` option (for example, from the [driver](http://mongodb.github.io/node-mongodb-native/2.2/api/MongoClient.html#connect) ) to instead remove `undefined` keys. + +#### How do I add custom serialization logic? + +This library looks for `toBSON()` functions on every path, and calls the `toBSON()` function to get the value to serialize. + +```javascript +const BSON = require('bson'); + +class CustomSerialize { + toBSON() { + return 42; + } +} + +const obj = { answer: new CustomSerialize() }; +// "{ answer: 42 }" +console.log(BSON.deserialize(BSON.serialize(obj))); +``` diff --git a/week-3/04-course-app-hard/node_modules/bson/bson.d.ts b/week-3/04-course-app-hard/node_modules/bson/bson.d.ts new file mode 100644 index 000000000..69af3db0d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/bson.d.ts @@ -0,0 +1,1606 @@ +/** + * A class representation of the BSON Binary type. + * @public + * @category BSONType + */ +export declare class Binary extends BSONValue { + get _bsontype(): 'Binary'; + /* Excluded from this release type: BSON_BINARY_SUBTYPE_DEFAULT */ + /** Initial buffer default size */ + static readonly BUFFER_SIZE = 256; + /** Default BSON type */ + static readonly SUBTYPE_DEFAULT = 0; + /** Function BSON type */ + static readonly SUBTYPE_FUNCTION = 1; + /** Byte Array BSON type */ + static readonly SUBTYPE_BYTE_ARRAY = 2; + /** Deprecated UUID BSON type @deprecated Please use SUBTYPE_UUID */ + static readonly SUBTYPE_UUID_OLD = 3; + /** UUID BSON type */ + static readonly SUBTYPE_UUID = 4; + /** MD5 BSON type */ + static readonly SUBTYPE_MD5 = 5; + /** Encrypted BSON type */ + static readonly SUBTYPE_ENCRYPTED = 6; + /** Column BSON type */ + static readonly SUBTYPE_COLUMN = 7; + /** Sensitive BSON type */ + static readonly SUBTYPE_SENSITIVE = 8; + /** User BSON type */ + static readonly SUBTYPE_USER_DEFINED = 128; + buffer: Uint8Array; + sub_type: number; + position: number; + /** + * Create a new Binary instance. + * @param buffer - a buffer object containing the binary data. + * @param subType - the option binary type. + */ + constructor(buffer?: BinarySequence, subType?: number); + /** + * Updates this binary with byte_value. + * + * @param byteValue - a single byte we wish to write. + */ + put(byteValue: string | number | Uint8Array | number[]): void; + /** + * Writes a buffer to the binary. + * + * @param sequence - a string or buffer to be written to the Binary BSON object. + * @param offset - specify the binary of where to write the content. + */ + write(sequence: BinarySequence, offset: number): void; + /** + * Reads **length** bytes starting at **position**. + * + * @param position - read from the given position in the Binary. + * @param length - the number of bytes to read. + */ + read(position: number, length: number): BinarySequence; + /** returns a view of the binary value as a Uint8Array */ + value(): Uint8Array; + /** the length of the binary sequence */ + length(): number; + toJSON(): string; + toString(encoding?: 'hex' | 'base64' | 'utf8' | 'utf-8'): string; + /* Excluded from this release type: toExtendedJSON */ + toUUID(): UUID; + /** Creates an Binary instance from a hex digit string */ + static createFromHexString(hex: string, subType?: number): Binary; + /** Creates an Binary instance from a base64 string */ + static createFromBase64(base64: string, subType?: number): Binary; + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface BinaryExtended { + $binary: { + subType: string; + base64: string; + }; +} + +/** @public */ +export declare interface BinaryExtendedLegacy { + $type: string; + $binary: string; +} + +/** @public */ +export declare type BinarySequence = Uint8Array | number[]; + +declare namespace BSON { + export { + setInternalBufferSize, + serialize, + serializeWithBufferAndIndex, + deserialize, + calculateObjectSize, + deserializeStream, + UUIDExtended, + BinaryExtended, + BinaryExtendedLegacy, + BinarySequence, + CodeExtended, + DBRefLike, + Decimal128Extended, + DoubleExtended, + EJSONOptions, + Int32Extended, + LongExtended, + MaxKeyExtended, + MinKeyExtended, + ObjectIdExtended, + ObjectIdLike, + BSONRegExpExtended, + BSONRegExpExtendedLegacy, + BSONSymbolExtended, + LongWithoutOverrides, + TimestampExtended, + TimestampOverrides, + LongWithoutOverridesClass, + SerializeOptions, + DeserializeOptions, + Code, + BSONSymbol, + DBRef, + Binary, + ObjectId, + UUID, + Long, + Timestamp, + Double, + Int32, + MinKey, + MaxKey, + BSONRegExp, + Decimal128, + BSONValue, + BSONError, + BSONVersionError, + BSONRuntimeError, + BSONOffsetError, + BSONType, + EJSON, + onDemand, + OnDemand, + Document, + CalculateObjectSizeOptions + } +} +export { BSON } + +/** + * @public + * @experimental + */ +declare type BSONElement = [ +type: number, +nameOffset: number, +nameLength: number, +offset: number, +length: number +]; + +/** + * @public + * @category Error + * + * `BSONError` objects are thrown when BSON encounters an error. + * + * This is the parent class for all the other errors thrown by this library. + */ +export declare class BSONError extends Error { + /* Excluded from this release type: bsonError */ + get name(): string; + constructor(message: string, options?: { + cause?: unknown; + }); + /** + * @public + * + * All errors thrown from the BSON library inherit from `BSONError`. + * This method can assist with determining if an error originates from the BSON library + * even if it does not pass an `instanceof` check against this class' constructor. + * + * @param value - any javascript value that needs type checking + */ + static isBSONError(value: unknown): value is BSONError; +} + +/** + * @public + * @category Error + * + * @experimental + * + * An error generated when BSON bytes are invalid. + * Reports the offset the parser was able to reach before encountering the error. + */ +export declare class BSONOffsetError extends BSONError { + get name(): 'BSONOffsetError'; + offset: number; + constructor(message: string, offset: number, options?: { + cause?: unknown; + }); +} + +/** + * A class representation of the BSON RegExp type. + * @public + * @category BSONType + */ +export declare class BSONRegExp extends BSONValue { + get _bsontype(): 'BSONRegExp'; + pattern: string; + options: string; + /** + * @param pattern - The regular expression pattern to match + * @param options - The regular expression options + */ + constructor(pattern: string, options?: string); + static parseOptions(options?: string): string; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface BSONRegExpExtended { + $regularExpression: { + pattern: string; + options: string; + }; +} + +/** @public */ +export declare interface BSONRegExpExtendedLegacy { + $regex: string | BSONRegExp; + $options: string; +} + +/** + * @public + * @category Error + * + * An error generated when BSON functions encounter an unexpected input + * or reaches an unexpected/invalid internal state + * + */ +export declare class BSONRuntimeError extends BSONError { + get name(): 'BSONRuntimeError'; + constructor(message: string); +} + +/** + * A class representation of the BSON Symbol type. + * @public + * @category BSONType + */ +export declare class BSONSymbol extends BSONValue { + get _bsontype(): 'BSONSymbol'; + value: string; + /** + * @param value - the string representing the symbol. + */ + constructor(value: string); + /** Access the wrapped string value. */ + valueOf(): string; + toString(): string; + toJSON(): string; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface BSONSymbolExtended { + $symbol: string; +} + +/** @public */ +export declare const BSONType: Readonly<{ + readonly double: 1; + readonly string: 2; + readonly object: 3; + readonly array: 4; + readonly binData: 5; + readonly undefined: 6; + readonly objectId: 7; + readonly bool: 8; + readonly date: 9; + readonly null: 10; + readonly regex: 11; + readonly dbPointer: 12; + readonly javascript: 13; + readonly symbol: 14; + readonly javascriptWithScope: 15; + readonly int: 16; + readonly timestamp: 17; + readonly long: 18; + readonly decimal: 19; + readonly minKey: -1; + readonly maxKey: 127; +}>; + +/** @public */ +export declare type BSONType = (typeof BSONType)[keyof typeof BSONType]; + +/** @public */ +export declare abstract class BSONValue { + /** @public */ + abstract get _bsontype(): string; + /** + * @public + * Prints a human-readable string of BSON value information + * If invoked manually without node.js.inspect function, this will default to a modified JSON.stringify + */ + abstract inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; + /* Excluded from this release type: toExtendedJSON */ +} + +/** + * @public + * @category Error + */ +export declare class BSONVersionError extends BSONError { + get name(): 'BSONVersionError'; + constructor(); +} + +/** + * @public + * @experimental + * + * A collection of functions that help work with data in a Uint8Array. + * ByteUtils is configured at load time to use Node.js or Web based APIs for the internal implementations. + */ +declare type ByteUtils = { + /** Transforms the input to an instance of Buffer if running on node, otherwise Uint8Array */ + toLocalBufferType: (buffer: Uint8Array | ArrayBufferView | ArrayBuffer) => Uint8Array; + /** Create empty space of size */ + allocate: (size: number) => Uint8Array; + /** Create empty space of size, use pooled memory when available */ + allocateUnsafe: (size: number) => Uint8Array; + /** Check if two Uint8Arrays are deep equal */ + equals: (a: Uint8Array, b: Uint8Array) => boolean; + /** Check if two Uint8Arrays are deep equal */ + fromNumberArray: (array: number[]) => Uint8Array; + /** Create a Uint8Array from a base64 string */ + fromBase64: (base64: string) => Uint8Array; + /** Create a base64 string from bytes */ + toBase64: (buffer: Uint8Array) => string; + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + fromISO88591: (codePoints: string) => Uint8Array; + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + toISO88591: (buffer: Uint8Array) => string; + /** Create a Uint8Array from a hex string */ + fromHex: (hex: string) => Uint8Array; + /** Create a lowercase hex string from bytes */ + toHex: (buffer: Uint8Array) => string; + /** Create a string from utf8 code units, fatal=true will throw an error if UTF-8 bytes are invalid, fatal=false will insert replacement characters */ + toUTF8: (buffer: Uint8Array, start: number, end: number, fatal: boolean) => string; + /** Get the utf8 code unit count from a string if it were to be transformed to utf8 */ + utf8ByteLength: (input: string) => number; + /** Encode UTF8 bytes generated from `source` string into `destination` at byteOffset. Returns the number of bytes encoded. */ + encodeUTF8Into: (destination: Uint8Array, source: string, byteOffset: number) => number; + /** Generate a Uint8Array filled with random bytes with byteLength */ + randomBytes: (byteLength: number) => Uint8Array; +}; + +/* Excluded declaration from this release type: ByteUtils */ + +/** + * Calculate the bson size for a passed in Javascript object. + * + * @param object - the Javascript object to calculate the BSON byte size for + * @returns size of BSON object in bytes + * @public + */ +export declare function calculateObjectSize(object: Document, options?: CalculateObjectSizeOptions): number; + +/** @public */ +export declare type CalculateObjectSizeOptions = Pick; + +/** + * A class representation of the BSON Code type. + * @public + * @category BSONType + */ +export declare class Code extends BSONValue { + get _bsontype(): 'Code'; + code: string; + scope: Document | null; + /** + * @param code - a string or function. + * @param scope - an optional scope for the function. + */ + constructor(code: string | Function, scope?: Document | null); + toJSON(): { + code: string; + scope?: Document; + }; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface CodeExtended { + $code: string; + $scope?: Document; +} + +/** + * A class representation of the BSON DBRef type. + * @public + * @category BSONType + */ +export declare class DBRef extends BSONValue { + get _bsontype(): 'DBRef'; + collection: string; + oid: ObjectId; + db?: string; + fields: Document; + /** + * @param collection - the collection name. + * @param oid - the reference ObjectId. + * @param db - optional db name, if omitted the reference is local to the current db. + */ + constructor(collection: string, oid: ObjectId, db?: string, fields?: Document); + /* Excluded from this release type: namespace */ + /* Excluded from this release type: namespace */ + toJSON(): DBRefLike & Document; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface DBRefLike { + $ref: string; + $id: ObjectId; + $db?: string; +} + +/** + * A class representation of the BSON Decimal128 type. + * @public + * @category BSONType + */ +export declare class Decimal128 extends BSONValue { + get _bsontype(): 'Decimal128'; + readonly bytes: Uint8Array; + /** + * @param bytes - a buffer containing the raw Decimal128 bytes in little endian order, + * or a string representation as returned by .toString() + */ + constructor(bytes: Uint8Array | string); + /** + * Create a Decimal128 instance from a string representation + * + * @param representation - a numeric string representation. + */ + static fromString(representation: string): Decimal128; + /** + * Create a Decimal128 instance from a string representation, allowing for rounding to 34 + * significant digits + * + * @example Example of a number that will be rounded + * ```ts + * > let d = Decimal128.fromString('37.499999999999999196428571428571375') + * Uncaught: + * BSONError: "37.499999999999999196428571428571375" is not a valid Decimal128 string - inexact rounding + * at invalidErr (/home/wajames/js-bson/lib/bson.cjs:1402:11) + * at Decimal128.fromStringInternal (/home/wajames/js-bson/lib/bson.cjs:1633:25) + * at Decimal128.fromString (/home/wajames/js-bson/lib/bson.cjs:1424:27) + * + * > d = Decimal128.fromStringWithRounding('37.499999999999999196428571428571375') + * new Decimal128("37.49999999999999919642857142857138") + * ``` + * @param representation - a numeric string representation. + */ + static fromStringWithRounding(representation: string): Decimal128; + private static _fromString; + /** Create a string representation of the raw Decimal128 value */ + toString(): string; + toJSON(): Decimal128Extended; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface Decimal128Extended { + $numberDecimal: string; +} + +/** + * Deserialize data as BSON. + * + * @param buffer - the buffer containing the serialized set of BSON documents. + * @returns returns the deserialized Javascript Object. + * @public + */ +export declare function deserialize(buffer: Uint8Array, options?: DeserializeOptions): Document; + +/** @public */ +export declare interface DeserializeOptions { + /** + * when deserializing a Long return as a BigInt. + * @defaultValue `false` + */ + useBigInt64?: boolean; + /** + * when deserializing a Long will fit it into a Number if it's smaller than 53 bits. + * @defaultValue `true` + */ + promoteLongs?: boolean; + /** + * when deserializing a Binary will return it as a node.js Buffer instance. + * @defaultValue `false` + */ + promoteBuffers?: boolean; + /** + * when deserializing will promote BSON values to their Node.js closest equivalent types. + * @defaultValue `true` + */ + promoteValues?: boolean; + /** + * allow to specify if there what fields we wish to return as unserialized raw buffer. + * @defaultValue `null` + */ + fieldsAsRaw?: Document; + /** + * return BSON regular expressions as BSONRegExp instances. + * @defaultValue `false` + */ + bsonRegExp?: boolean; + /** + * allows the buffer to be larger than the parsed BSON object. + * @defaultValue `false` + */ + allowObjectSmallerThanBufferSize?: boolean; + /** + * Offset into buffer to begin reading document from + * @defaultValue `0` + */ + index?: number; + raw?: boolean; + /** Allows for opt-out utf-8 validation for all keys or + * specified keys. Must be all true or all false. + * + * @example + * ```js + * // disables validation on all keys + * validation: { utf8: false } + * + * // enables validation only on specified keys a, b, and c + * validation: { utf8: { a: true, b: true, c: true } } + * + * // disables validation only on specified keys a, b + * validation: { utf8: { a: false, b: false } } + * ``` + */ + validation?: { + utf8: boolean | Record | Record; + }; +} + +/** + * Deserialize stream data as BSON documents. + * + * @param data - the buffer containing the serialized set of BSON documents. + * @param startIndex - the start index in the data Buffer where the deserialization is to start. + * @param numberOfDocuments - number of documents to deserialize. + * @param documents - an array where to store the deserialized documents. + * @param docStartIndex - the index in the documents array from where to start inserting documents. + * @param options - additional options used for the deserialization. + * @returns next index in the buffer after deserialization **x** numbers of documents. + * @public + */ +export declare function deserializeStream(data: Uint8Array | ArrayBuffer, startIndex: number, numberOfDocuments: number, documents: Document[], docStartIndex: number, options: DeserializeOptions): number; + +/** @public */ +export declare interface Document { + [key: string]: any; +} + +/** + * A class representation of the BSON Double type. + * @public + * @category BSONType + */ +export declare class Double extends BSONValue { + get _bsontype(): 'Double'; + value: number; + /** + * Create a Double type + * + * @param value - the number we want to represent as a double. + */ + constructor(value: number); + /** + * Attempt to create an double type from string. + * + * This method will throw a BSONError on any string input that is not representable as a IEEE-754 64-bit double. + * Notably, this method will also throw on the following string formats: + * - Strings in non-decimal and non-exponential formats (binary, hex, or octal digits) + * - Strings with characters other than numeric, floating point, or leading sign characters (Note: 'Infinity', '-Infinity', and 'NaN' input strings are still allowed) + * - Strings with leading and/or trailing whitespace + * + * Strings with leading zeros, however, are also allowed + * + * @param value - the string we want to represent as a double. + */ + static fromString(value: string): Double; + /** + * Access the number value. + * + * @returns returns the wrapped double number. + */ + valueOf(): number; + toJSON(): number; + toString(radix?: number): string; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface DoubleExtended { + $numberDouble: string; +} + +/** @public */ +export declare const EJSON: { + parse: typeof parse; + stringify: typeof stringify; + serialize: typeof EJSONserialize; + deserialize: typeof EJSONdeserialize; +}; + +/** + * Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types + * + * @param ejson - The Extended JSON object to deserialize + * @param options - Optional settings passed to the parse method + */ +declare function EJSONdeserialize(ejson: Document, options?: EJSONOptions): any; + +/** @public */ +export declare type EJSONOptions = { + /** + * Output using the Extended JSON v1 spec + * @defaultValue `false` + */ + legacy?: boolean; + /** + * Enable Extended JSON's `relaxed` mode, which attempts to return native JS types where possible, rather than BSON types + * @defaultValue `false` */ + relaxed?: boolean; + /** + * Enable native bigint support + * @defaultValue `false` + */ + useBigInt64?: boolean; +}; + +/** + * Serializes an object to an Extended JSON string, and reparse it as a JavaScript object. + * + * @param value - The object to serialize + * @param options - Optional settings passed to the `stringify` function + */ +declare function EJSONserialize(value: any, options?: EJSONOptions): Document; + +declare type InspectFn = (x: unknown, options?: unknown) => string; + +/** + * A class representation of a BSON Int32 type. + * @public + * @category BSONType + */ +export declare class Int32 extends BSONValue { + get _bsontype(): 'Int32'; + value: number; + /** + * Create an Int32 type + * + * @param value - the number we want to represent as an int32. + */ + constructor(value: number | string); + /** + * Attempt to create an Int32 type from string. + * + * This method will throw a BSONError on any string input that is not representable as an Int32. + * Notably, this method will also throw on the following string formats: + * - Strings in non-decimal formats (exponent notation, binary, hex, or octal digits) + * - Strings non-numeric and non-leading sign characters (ex: '2.0', '24,000') + * - Strings with leading and/or trailing whitespace + * + * Strings with leading zeros, however, are allowed. + * + * @param value - the string we want to represent as an int32. + */ + static fromString(value: string): Int32; + /** + * Access the number value. + * + * @returns returns the wrapped int32 number. + */ + valueOf(): number; + toString(radix?: number): string; + toJSON(): number; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface Int32Extended { + $numberInt: string; +} + +/** + * A class representing a 64-bit integer + * @public + * @category BSONType + * @remarks + * The internal representation of a long is the two given signed, 32-bit values. + * We use 32-bit pieces because these are the size of integers on which + * Javascript performs bit-operations. For operations like addition and + * multiplication, we split each number into 16 bit pieces, which can easily be + * multiplied within Javascript's floating-point representation without overflow + * or change in sign. + * In the algorithms below, we frequently reduce the negative case to the + * positive case by negating the input(s) and then post-processing the result. + * Note that we must ALWAYS check specially whether those values are MIN_VALUE + * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as + * a positive number, it overflows back into a negative). Not handling this + * case would often result in infinite recursion. + * Common constant values ZERO, ONE, NEG_ONE, etc. are found as static properties on this class. + */ +export declare class Long extends BSONValue { + get _bsontype(): 'Long'; + /** An indicator used to reliably determine if an object is a Long or not. */ + get __isLong__(): boolean; + /** + * The high 32 bits as a signed value. + */ + high: number; + /** + * The low 32 bits as a signed value. + */ + low: number; + /** + * Whether unsigned or not. + */ + unsigned: boolean; + /** + * Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers. + * + * @param low - The low (signed) 32 bits of the long + * @param high - The high (signed) 32 bits of the long + * @param unsigned - Whether unsigned or not, defaults to signed + */ + constructor(low: number, high?: number, unsigned?: boolean); + /** + * Constructs a 64 bit two's-complement integer, given a bigint representation. + * + * @param value - BigInt representation of the long value + * @param unsigned - Whether unsigned or not, defaults to signed + */ + constructor(value: bigint, unsigned?: boolean); + /** + * Constructs a 64 bit two's-complement integer, given a string representation. + * + * @param value - String representation of the long value + * @param unsigned - Whether unsigned or not, defaults to signed + */ + constructor(value: string, unsigned?: boolean); + static TWO_PWR_24: Long; + /** Maximum unsigned value. */ + static MAX_UNSIGNED_VALUE: Long; + /** Signed zero */ + static ZERO: Long; + /** Unsigned zero. */ + static UZERO: Long; + /** Signed one. */ + static ONE: Long; + /** Unsigned one. */ + static UONE: Long; + /** Signed negative one. */ + static NEG_ONE: Long; + /** Maximum signed value. */ + static MAX_VALUE: Long; + /** Minimum signed value. */ + static MIN_VALUE: Long; + /** + * Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits. + * Each is assumed to use 32 bits. + * @param lowBits - The low 32 bits + * @param highBits - The high 32 bits + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBits(lowBits: number, highBits: number, unsigned?: boolean): Long; + /** + * Returns a Long representing the given 32 bit integer value. + * @param value - The 32 bit integer in question + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromInt(value: number, unsigned?: boolean): Long; + /** + * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned. + * @param value - The number in question + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromNumber(value: number, unsigned?: boolean): Long; + /** + * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned. + * @param value - The number in question + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBigInt(value: bigint, unsigned?: boolean): Long; + /* Excluded from this release type: _fromString */ + /** + * Returns a signed Long representation of the given string, written using radix 10. + * Will throw an error if the given text is not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the radix 10 + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @returns The corresponding Long value + */ + static fromStringStrict(str: string): Long; + /** + * Returns a Long representation of the given string, written using the radix 10. + * Will throw an error if the given parameters are not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromStringStrict(str: string, unsigned?: boolean): Long; + /** + * Returns a signed Long representation of the given string, written using the specified radix. + * Will throw an error if the given parameters are not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromStringStrict(str: string, radix?: boolean): Long; + /** + * Returns a Long representation of the given string, written using the specified radix. + * Will throw an error if the given parameters are not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromStringStrict(str: string, unsigned?: boolean, radix?: number): Long; + /** + * Returns a signed Long representation of the given string, written using radix 10. + * + * If the input string is empty, this function will throw a BSONError. + * + * If input string does not have valid signed 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively + * - 'NaN' or '+/-Infinity' are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * + * @param str - The textual representation of the Long + * @returns The corresponding Long value + */ + static fromString(str: string): Long; + /** + * Returns a signed Long representation of the given string, written using the provided radix. + * + * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError. + * + * If input parameters do not have valid signed 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively + * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO + * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * @param str - The textual representation of the Long + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromString(str: string, radix?: number): Long; + /** + * Returns a Long representation of the given string, written using radix 10. + * + * If the input string is empty, this function will throw a BSONError. + * + * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values + * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO + * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromString(str: string, unsigned?: boolean): Long; + /** + * Returns a Long representation of the given string, written using the specified radix. + * + * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError. + * + * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values + * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO + * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromString(str: string, unsigned?: boolean, radix?: number): Long; + /** + * Creates a Long from its byte representation. + * @param bytes - Byte representation + * @param unsigned - Whether unsigned or not, defaults to signed + * @param le - Whether little or big endian, defaults to big endian + * @returns The corresponding Long value + */ + static fromBytes(bytes: number[], unsigned?: boolean, le?: boolean): Long; + /** + * Creates a Long from its little endian byte representation. + * @param bytes - Little endian byte representation + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBytesLE(bytes: number[], unsigned?: boolean): Long; + /** + * Creates a Long from its big endian byte representation. + * @param bytes - Big endian byte representation + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBytesBE(bytes: number[], unsigned?: boolean): Long; + /** + * Tests if the specified object is a Long. + */ + static isLong(value: unknown): value is Long; + /** + * Converts the specified value to a Long. + * @param unsigned - Whether unsigned or not, defaults to signed + */ + static fromValue(val: number | string | { + low: number; + high: number; + unsigned?: boolean; + }, unsigned?: boolean): Long; + /** Returns the sum of this and the specified Long. */ + add(addend: string | number | Long | Timestamp): Long; + /** + * Returns the sum of this and the specified Long. + * @returns Sum + */ + and(other: string | number | Long | Timestamp): Long; + /** + * Compares this Long's value with the specified's. + * @returns 0 if they are the same, 1 if the this is greater and -1 if the given one is greater + */ + compare(other: string | number | Long | Timestamp): 0 | 1 | -1; + /** This is an alias of {@link Long.compare} */ + comp(other: string | number | Long | Timestamp): 0 | 1 | -1; + /** + * Returns this Long divided by the specified. The result is signed if this Long is signed or unsigned if this Long is unsigned. + * @returns Quotient + */ + divide(divisor: string | number | Long | Timestamp): Long; + /**This is an alias of {@link Long.divide} */ + div(divisor: string | number | Long | Timestamp): Long; + /** + * Tests if this Long's value equals the specified's. + * @param other - Other value + */ + equals(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.equals} */ + eq(other: string | number | Long | Timestamp): boolean; + /** Gets the high 32 bits as a signed integer. */ + getHighBits(): number; + /** Gets the high 32 bits as an unsigned integer. */ + getHighBitsUnsigned(): number; + /** Gets the low 32 bits as a signed integer. */ + getLowBits(): number; + /** Gets the low 32 bits as an unsigned integer. */ + getLowBitsUnsigned(): number; + /** Gets the number of bits needed to represent the absolute value of this Long. */ + getNumBitsAbs(): number; + /** Tests if this Long's value is greater than the specified's. */ + greaterThan(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.greaterThan} */ + gt(other: string | number | Long | Timestamp): boolean; + /** Tests if this Long's value is greater than or equal the specified's. */ + greaterThanOrEqual(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.greaterThanOrEqual} */ + gte(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.greaterThanOrEqual} */ + ge(other: string | number | Long | Timestamp): boolean; + /** Tests if this Long's value is even. */ + isEven(): boolean; + /** Tests if this Long's value is negative. */ + isNegative(): boolean; + /** Tests if this Long's value is odd. */ + isOdd(): boolean; + /** Tests if this Long's value is positive. */ + isPositive(): boolean; + /** Tests if this Long's value equals zero. */ + isZero(): boolean; + /** Tests if this Long's value is less than the specified's. */ + lessThan(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long#lessThan}. */ + lt(other: string | number | Long | Timestamp): boolean; + /** Tests if this Long's value is less than or equal the specified's. */ + lessThanOrEqual(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.lessThanOrEqual} */ + lte(other: string | number | Long | Timestamp): boolean; + /** Returns this Long modulo the specified. */ + modulo(divisor: string | number | Long | Timestamp): Long; + /** This is an alias of {@link Long.modulo} */ + mod(divisor: string | number | Long | Timestamp): Long; + /** This is an alias of {@link Long.modulo} */ + rem(divisor: string | number | Long | Timestamp): Long; + /** + * Returns the product of this and the specified Long. + * @param multiplier - Multiplier + * @returns Product + */ + multiply(multiplier: string | number | Long | Timestamp): Long; + /** This is an alias of {@link Long.multiply} */ + mul(multiplier: string | number | Long | Timestamp): Long; + /** Returns the Negation of this Long's value. */ + negate(): Long; + /** This is an alias of {@link Long.negate} */ + neg(): Long; + /** Returns the bitwise NOT of this Long. */ + not(): Long; + /** Tests if this Long's value differs from the specified's. */ + notEquals(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.notEquals} */ + neq(other: string | number | Long | Timestamp): boolean; + /** This is an alias of {@link Long.notEquals} */ + ne(other: string | number | Long | Timestamp): boolean; + /** + * Returns the bitwise OR of this Long and the specified. + */ + or(other: number | string | Long): Long; + /** + * Returns this Long with bits shifted to the left by the given amount. + * @param numBits - Number of bits + * @returns Shifted Long + */ + shiftLeft(numBits: number | Long): Long; + /** This is an alias of {@link Long.shiftLeft} */ + shl(numBits: number | Long): Long; + /** + * Returns this Long with bits arithmetically shifted to the right by the given amount. + * @param numBits - Number of bits + * @returns Shifted Long + */ + shiftRight(numBits: number | Long): Long; + /** This is an alias of {@link Long.shiftRight} */ + shr(numBits: number | Long): Long; + /** + * Returns this Long with bits logically shifted to the right by the given amount. + * @param numBits - Number of bits + * @returns Shifted Long + */ + shiftRightUnsigned(numBits: Long | number): Long; + /** This is an alias of {@link Long.shiftRightUnsigned} */ + shr_u(numBits: number | Long): Long; + /** This is an alias of {@link Long.shiftRightUnsigned} */ + shru(numBits: number | Long): Long; + /** + * Returns the difference of this and the specified Long. + * @param subtrahend - Subtrahend + * @returns Difference + */ + subtract(subtrahend: string | number | Long | Timestamp): Long; + /** This is an alias of {@link Long.subtract} */ + sub(subtrahend: string | number | Long | Timestamp): Long; + /** Converts the Long to a 32 bit integer, assuming it is a 32 bit integer. */ + toInt(): number; + /** Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa). */ + toNumber(): number; + /** Converts the Long to a BigInt (arbitrary precision). */ + toBigInt(): bigint; + /** + * Converts this Long to its byte representation. + * @param le - Whether little or big endian, defaults to big endian + * @returns Byte representation + */ + toBytes(le?: boolean): number[]; + /** + * Converts this Long to its little endian byte representation. + * @returns Little endian byte representation + */ + toBytesLE(): number[]; + /** + * Converts this Long to its big endian byte representation. + * @returns Big endian byte representation + */ + toBytesBE(): number[]; + /** + * Converts this Long to signed. + */ + toSigned(): Long; + /** + * Converts the Long to a string written in the specified radix. + * @param radix - Radix (2-36), defaults to 10 + * @throws RangeError If `radix` is out of range + */ + toString(radix?: number): string; + /** Converts this Long to unsigned. */ + toUnsigned(): Long; + /** Returns the bitwise XOR of this Long and the given one. */ + xor(other: Long | number | string): Long; + /** This is an alias of {@link Long.isZero} */ + eqz(): boolean; + /** This is an alias of {@link Long.lessThanOrEqual} */ + le(other: string | number | Long | Timestamp): boolean; + toExtendedJSON(options?: EJSONOptions): number | LongExtended; + static fromExtendedJSON(doc: { + $numberLong: string; + }, options?: EJSONOptions): number | Long | bigint; + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface LongExtended { + $numberLong: string; +} + +/** @public */ +export declare type LongWithoutOverrides = new (low: unknown, high?: number | boolean, unsigned?: boolean) => { + [P in Exclude]: Long[P]; +}; + +/** @public */ +export declare const LongWithoutOverridesClass: LongWithoutOverrides; + +/** + * A class representation of the BSON MaxKey type. + * @public + * @category BSONType + */ +export declare class MaxKey extends BSONValue { + get _bsontype(): 'MaxKey'; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(): string; +} + +/** @public */ +export declare interface MaxKeyExtended { + $maxKey: 1; +} + +/** + * A class representation of the BSON MinKey type. + * @public + * @category BSONType + */ +export declare class MinKey extends BSONValue { + get _bsontype(): 'MinKey'; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(): string; +} + +/** @public */ +export declare interface MinKeyExtended { + $minKey: 1; +} + +/** + * @experimental + * @public + * + * A collection of functions that get or set various numeric types and bit widths from a Uint8Array. + */ +declare type NumberUtils = { + /** + * Parses a signed int32 at offset. Throws a `RangeError` if value is negative. + */ + getNonnegativeInt32LE: (source: Uint8Array, offset: number) => number; + getInt32LE: (source: Uint8Array, offset: number) => number; + getUint32LE: (source: Uint8Array, offset: number) => number; + getUint32BE: (source: Uint8Array, offset: number) => number; + getBigInt64LE: (source: Uint8Array, offset: number) => bigint; + getFloat64LE: (source: Uint8Array, offset: number) => number; + setInt32BE: (destination: Uint8Array, offset: number, value: number) => 4; + setInt32LE: (destination: Uint8Array, offset: number, value: number) => 4; + setBigInt64LE: (destination: Uint8Array, offset: number, value: bigint) => 8; + setFloat64LE: (destination: Uint8Array, offset: number, value: number) => 8; +}; + +/** + * Number parsing and serializing utilities. + * + * @experimental + * @public + */ +declare const NumberUtils: NumberUtils; + +/** + * A class representation of the BSON ObjectId type. + * @public + * @category BSONType + */ +export declare class ObjectId extends BSONValue { + get _bsontype(): 'ObjectId'; + /* Excluded from this release type: index */ + static cacheHexString: boolean; + /* Excluded from this release type: buffer */ + /* Excluded from this release type: __id */ + /** + * Create ObjectId from a number. + * + * @param inputId - A number. + * @deprecated Instead, use `static createFromTime()` to set a numeric value for the new ObjectId. + */ + constructor(inputId: number); + /** + * Create ObjectId from a 24 character hex string. + * + * @param inputId - A 24 character hex string. + */ + constructor(inputId: string); + /** + * Create ObjectId from the BSON ObjectId type. + * + * @param inputId - The BSON ObjectId type. + */ + constructor(inputId: ObjectId); + /** + * Create ObjectId from the object type that has the toHexString method. + * + * @param inputId - The ObjectIdLike type. + */ + constructor(inputId: ObjectIdLike); + /** + * Create ObjectId from a 12 byte binary Buffer. + * + * @param inputId - A 12 byte binary Buffer. + */ + constructor(inputId: Uint8Array); + /** To generate a new ObjectId, use ObjectId() with no argument. */ + constructor(); + /** + * Implementation overload. + * + * @param inputId - All input types that are used in the constructor implementation. + */ + constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array); + /** + * The ObjectId bytes + * @readonly + */ + get id(): Uint8Array; + set id(value: Uint8Array); + /** Returns the ObjectId id as a 24 lowercase character hex string representation */ + toHexString(): string; + /* Excluded from this release type: getInc */ + /** + * Generate a 12 byte id buffer used in ObjectId's + * + * @param time - pass in a second based timestamp. + */ + static generate(time?: number): Uint8Array; + /** + * Converts the id into a 24 character hex string for printing, unless encoding is provided. + * @param encoding - hex or base64 + */ + toString(encoding?: 'hex' | 'base64'): string; + /** Converts to its JSON the 24 character hex string representation. */ + toJSON(): string; + /* Excluded from this release type: is */ + /** + * Compares the equality of this ObjectId with `otherID`. + * + * @param otherId - ObjectId instance to compare against. + */ + equals(otherId: string | ObjectId | ObjectIdLike | undefined | null): boolean; + /** Returns the generation date (accurate up to the second) that this ID was generated. */ + getTimestamp(): Date; + /* Excluded from this release type: createPk */ + /* Excluded from this release type: serializeInto */ + /** + * Creates an ObjectId from a second based number, with the rest of the ObjectId zeroed out. Used for comparisons or sorting the ObjectId. + * + * @param time - an integer number representing a number of seconds. + */ + static createFromTime(time: number): ObjectId; + /** + * Creates an ObjectId from a hex string representation of an ObjectId. + * + * @param hexString - create a ObjectId from a passed in 24 character hexstring. + */ + static createFromHexString(hexString: string): ObjectId; + /** Creates an ObjectId instance from a base64 string */ + static createFromBase64(base64: string): ObjectId; + /** + * Checks if a value can be used to create a valid bson ObjectId + * @param id - any JS value + */ + static isValid(id: string | number | ObjectId | ObjectIdLike | Uint8Array): boolean; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + /** + * Converts to a string representation of this Id. + * + * @returns return the 24 character hex string representation. + */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface ObjectIdExtended { + $oid: string; +} + +/** @public */ +export declare interface ObjectIdLike { + id: string | Uint8Array; + __id?: string; + toHexString(): string; +} + +/** + * @experimental + * @public + * + * A new set of BSON APIs that are currently experimental and not intended for production use. + */ +export declare type OnDemand = { + parseToElements: (this: void, bytes: Uint8Array, startOffset?: number) => Iterable; + BSONElement: BSONElement; + ByteUtils: ByteUtils; + NumberUtils: NumberUtils; +}; + +/** + * @experimental + * @public + */ +export declare const onDemand: OnDemand; + +/** + * Parse an Extended JSON string, constructing the JavaScript value or object described by that + * string. + * + * @example + * ```js + * const { EJSON } = require('bson'); + * const text = '{ "int32": { "$numberInt": "10" } }'; + * + * // prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } } + * console.log(EJSON.parse(text, { relaxed: false })); + * + * // prints { int32: 10 } + * console.log(EJSON.parse(text)); + * ``` + */ +declare function parse(text: string, options?: EJSONOptions): any; + +/** + * Serialize a Javascript object. + * + * @param object - the Javascript object to serialize. + * @returns Buffer object containing the serialized object. + * @public + */ +export declare function serialize(object: Document, options?: SerializeOptions): Uint8Array; + +/** @public */ +export declare interface SerializeOptions { + /** + * the serializer will check if keys are valid. + * @defaultValue `false` + */ + checkKeys?: boolean; + /** + * serialize the javascript functions + * @defaultValue `false` + */ + serializeFunctions?: boolean; + /** + * serialize will not emit undefined fields + * note that the driver sets this to `false` + * @defaultValue `true` + */ + ignoreUndefined?: boolean; + /* Excluded from this release type: minInternalBufferSize */ + /** + * the index in the buffer where we wish to start serializing into + * @defaultValue `0` + */ + index?: number; +} + +/** + * Serialize a Javascript object using a predefined Buffer and index into the buffer, + * useful when pre-allocating the space for serialization. + * + * @param object - the Javascript object to serialize. + * @param finalBuffer - the Buffer you pre-allocated to store the serialized BSON object. + * @returns the index pointing to the last written byte in the buffer. + * @public + */ +export declare function serializeWithBufferAndIndex(object: Document, finalBuffer: Uint8Array, options?: SerializeOptions): number; + +/** + * Sets the size of the internal serialization buffer. + * + * @param size - The desired size for the internal serialization buffer in bytes + * @public + */ +export declare function setInternalBufferSize(size: number): void; + +/** + * Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer + * function is specified or optionally including only the specified properties if a replacer array + * is specified. + * + * @param value - The value to convert to extended JSON + * @param replacer - A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string + * @param space - A String or Number object that's used to insert white space into the output JSON string for readability purposes. + * @param options - Optional settings + * + * @example + * ```js + * const { EJSON } = require('bson'); + * const Int32 = require('mongodb').Int32; + * const doc = { int32: new Int32(10) }; + * + * // prints '{"int32":{"$numberInt":"10"}}' + * console.log(EJSON.stringify(doc, { relaxed: false })); + * + * // prints '{"int32":10}' + * console.log(EJSON.stringify(doc)); + * ``` + */ +declare function stringify(value: any, replacer?: (number | string)[] | ((this: any, key: string, value: any) => any) | EJSONOptions, space?: string | number, options?: EJSONOptions): string; + +/** + * @public + * @category BSONType + */ +export declare class Timestamp extends LongWithoutOverridesClass { + get _bsontype(): 'Timestamp'; + static readonly MAX_VALUE: Long; + /** + * @param int - A 64-bit bigint representing the Timestamp. + */ + constructor(int: bigint); + /** + * @param long - A 64-bit Long representing the Timestamp. + */ + constructor(long: Long); + /** + * @param value - A pair of two values indicating timestamp and increment. + */ + constructor(value: { + t: number; + i: number; + }); + toJSON(): { + $timestamp: string; + }; + /** Returns a Timestamp represented by the given (32-bit) integer value. */ + static fromInt(value: number): Timestamp; + /** Returns a Timestamp representing the given number value, provided that it is a finite number. Otherwise, zero is returned. */ + static fromNumber(value: number): Timestamp; + /** + * Returns a Timestamp for the given high and low bits. Each is assumed to use 32 bits. + * + * @param lowBits - the low 32-bits. + * @param highBits - the high 32-bits. + */ + static fromBits(lowBits: number, highBits: number): Timestamp; + /** + * Returns a Timestamp from the given string, optionally using the given radix. + * + * @param str - the textual representation of the Timestamp. + * @param optRadix - the radix in which the text is written. + */ + static fromString(str: string, optRadix: number): Timestamp; + /* Excluded from this release type: toExtendedJSON */ + /* Excluded from this release type: fromExtendedJSON */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare interface TimestampExtended { + $timestamp: { + t: number; + i: number; + }; +} + +/** @public */ +export declare type TimestampOverrides = '_bsontype' | 'toExtendedJSON' | 'fromExtendedJSON' | 'inspect'; + +/** + * A class representation of the BSON UUID type. + * @public + */ +export declare class UUID extends Binary { + /** + * Create a UUID type + * + * When the argument to the constructor is omitted a random v4 UUID will be generated. + * + * @param input - Can be a 32 or 36 character hex string (dashes excluded/included) or a 16 byte binary Buffer. + */ + constructor(input?: string | Uint8Array | UUID); + /** + * The UUID bytes + * @readonly + */ + get id(): Uint8Array; + set id(value: Uint8Array); + /** + * Returns the UUID id as a 32 or 36 character hex string representation, excluding/including dashes (defaults to 36 character dash separated) + * @param includeDashes - should the string exclude dash-separators. + */ + toHexString(includeDashes?: boolean): string; + /** + * Converts the id into a 36 character (dashes included) hex string, unless a encoding is specified. + */ + toString(encoding?: 'hex' | 'base64'): string; + /** + * Converts the id into its JSON string representation. + * A 36 character (dashes included) hex string in the format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + */ + toJSON(): string; + /** + * Compares the equality of this UUID with `otherID`. + * + * @param otherId - UUID instance to compare against. + */ + equals(otherId: string | Uint8Array | UUID): boolean; + /** + * Creates a Binary instance from the current UUID. + */ + toBinary(): Binary; + /** + * Generates a populated buffer containing a v4 uuid + */ + static generate(): Uint8Array; + /** + * Checks if a value is a valid bson UUID + * @param input - UUID, string or Buffer to validate. + */ + static isValid(input: string | Uint8Array | UUID | Binary): boolean; + /** + * Creates an UUID from a hex string representation of an UUID. + * @param hexString - 32 or 36 character hex string (dashes excluded/included). + */ + static createFromHexString(hexString: string): UUID; + /** Creates an UUID from a base64 string representation of an UUID. */ + static createFromBase64(base64: string): UUID; + /* Excluded from this release type: bytesFromString */ + /* Excluded from this release type: isValidUUIDString */ + /** + * Converts to a string representation of this Id. + * + * @returns return the 36 character hex string representation. + * + */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; +} + +/** @public */ +export declare type UUIDExtended = { + $uuid: string; +}; + +export { } diff --git a/week-3/04-course-app-hard/node_modules/bson/etc/prepare.js b/week-3/04-course-app-hard/node_modules/bson/etc/prepare.js new file mode 100644 index 000000000..91e6f3a97 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/etc/prepare.js @@ -0,0 +1,19 @@ +#! /usr/bin/env node +var cp = require('child_process'); +var fs = require('fs'); + +var nodeMajorVersion = +process.version.match(/^v(\d+)\.\d+/)[1]; + +if (fs.existsSync('src') && nodeMajorVersion >= 10) { + cp.spawnSync('npm', ['run', 'build'], { stdio: 'inherit', shell: true }); +} else { + if (!fs.existsSync('lib')) { + console.warn('BSON: No compiled javascript present, the library is not installed correctly.'); + if (nodeMajorVersion < 10) { + console.warn( + 'This library can only be compiled in nodejs version 10 or later, currently running: ' + + nodeMajorVersion + ); + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.bundle.js b/week-3/04-course-app-hard/node_modules/bson/lib/bson.bundle.js new file mode 100644 index 000000000..efbaa38d7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.bundle.js @@ -0,0 +1,4422 @@ +var BSON = (function (exports) { +'use strict'; + +function isAnyArrayBuffer(value) { + return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes(Object.prototype.toString.call(value)); +} +function isUint8Array(value) { + return Object.prototype.toString.call(value) === '[object Uint8Array]'; +} +function isRegExp(d) { + return Object.prototype.toString.call(d) === '[object RegExp]'; +} +function isMap(d) { + return Object.prototype.toString.call(d) === '[object Map]'; +} +function isDate(d) { + return Object.prototype.toString.call(d) === '[object Date]'; +} +function defaultInspect(x, _options) { + return JSON.stringify(x, (k, v) => { + if (typeof v === 'bigint') { + return { $numberLong: `${v}` }; + } + else if (isMap(v)) { + return Object.fromEntries(v); + } + return v; + }); +} +function getStylizeFunction(options) { + const stylizeExists = options != null && + typeof options === 'object' && + 'stylize' in options && + typeof options.stylize === 'function'; + if (stylizeExists) { + return options.stylize; + } +} + +const BSON_MAJOR_VERSION = 6; +const BSON_INT32_MAX = 0x7fffffff; +const BSON_INT32_MIN = -0x80000000; +const BSON_INT64_MAX = Math.pow(2, 63) - 1; +const BSON_INT64_MIN = -Math.pow(2, 63); +const JS_INT_MAX = Math.pow(2, 53); +const JS_INT_MIN = -Math.pow(2, 53); +const BSON_DATA_NUMBER = 1; +const BSON_DATA_STRING = 2; +const BSON_DATA_OBJECT = 3; +const BSON_DATA_ARRAY = 4; +const BSON_DATA_BINARY = 5; +const BSON_DATA_UNDEFINED = 6; +const BSON_DATA_OID = 7; +const BSON_DATA_BOOLEAN = 8; +const BSON_DATA_DATE = 9; +const BSON_DATA_NULL = 10; +const BSON_DATA_REGEXP = 11; +const BSON_DATA_DBPOINTER = 12; +const BSON_DATA_CODE = 13; +const BSON_DATA_SYMBOL = 14; +const BSON_DATA_CODE_W_SCOPE = 15; +const BSON_DATA_INT = 16; +const BSON_DATA_TIMESTAMP = 17; +const BSON_DATA_LONG = 18; +const BSON_DATA_DECIMAL128 = 19; +const BSON_DATA_MIN_KEY = 0xff; +const BSON_DATA_MAX_KEY = 0x7f; +const BSON_BINARY_SUBTYPE_DEFAULT = 0; +const BSON_BINARY_SUBTYPE_UUID_NEW = 4; +const BSONType = Object.freeze({ + double: 1, + string: 2, + object: 3, + array: 4, + binData: 5, + undefined: 6, + objectId: 7, + bool: 8, + date: 9, + null: 10, + regex: 11, + dbPointer: 12, + javascript: 13, + symbol: 14, + javascriptWithScope: 15, + int: 16, + timestamp: 17, + long: 18, + decimal: 19, + minKey: -1, + maxKey: 127 +}); + +class BSONError extends Error { + get bsonError() { + return true; + } + get name() { + return 'BSONError'; + } + constructor(message, options) { + super(message, options); + } + static isBSONError(value) { + return (value != null && + typeof value === 'object' && + 'bsonError' in value && + value.bsonError === true && + 'name' in value && + 'message' in value && + 'stack' in value); + } +} +class BSONVersionError extends BSONError { + get name() { + return 'BSONVersionError'; + } + constructor() { + super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`); + } +} +class BSONRuntimeError extends BSONError { + get name() { + return 'BSONRuntimeError'; + } + constructor(message) { + super(message); + } +} +class BSONOffsetError extends BSONError { + get name() { + return 'BSONOffsetError'; + } + constructor(message, offset, options) { + super(`${message}. offset: ${offset}`, options); + this.offset = offset; + } +} + +let TextDecoderFatal; +let TextDecoderNonFatal; +function parseUtf8(buffer, start, end, fatal) { + if (fatal) { + TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true }); + try { + return TextDecoderFatal.decode(buffer.subarray(start, end)); + } + catch (cause) { + throw new BSONError('Invalid UTF-8 string in BSON document', { cause }); + } + } + TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false }); + return TextDecoderNonFatal.decode(buffer.subarray(start, end)); +} + +function tryReadBasicLatin(uint8array, start, end) { + if (uint8array.length === 0) { + return ''; + } + const stringByteLength = end - start; + if (stringByteLength === 0) { + return ''; + } + if (stringByteLength > 20) { + return null; + } + if (stringByteLength === 1 && uint8array[start] < 128) { + return String.fromCharCode(uint8array[start]); + } + if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) { + return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]); + } + if (stringByteLength === 3 && + uint8array[start] < 128 && + uint8array[start + 1] < 128 && + uint8array[start + 2] < 128) { + return (String.fromCharCode(uint8array[start]) + + String.fromCharCode(uint8array[start + 1]) + + String.fromCharCode(uint8array[start + 2])); + } + const latinBytes = []; + for (let i = start; i < end; i++) { + const byte = uint8array[i]; + if (byte > 127) { + return null; + } + latinBytes.push(byte); + } + return String.fromCharCode(...latinBytes); +} +function tryWriteBasicLatin(destination, source, offset) { + if (source.length === 0) + return 0; + if (source.length > 25) + return null; + if (destination.length - offset < source.length) + return null; + for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) { + const char = source.charCodeAt(charOffset); + if (char > 127) + return null; + destination[destinationOffset] = char; + } + return source.length; +} + +function nodejsMathRandomBytes(byteLength) { + return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const nodejsRandomBytes = (() => { + try { + return require('crypto').randomBytes; + } + catch { + return nodejsMathRandomBytes; + } +})(); +const nodeJsByteUtils = { + toLocalBufferType(potentialBuffer) { + if (Buffer.isBuffer(potentialBuffer)) { + return potentialBuffer; + } + if (ArrayBuffer.isView(potentialBuffer)) { + return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength); + } + const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer); + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return Buffer.from(potentialBuffer); + } + throw new BSONError(`Cannot create Buffer from ${String(potentialBuffer)}`); + }, + allocate(size) { + return Buffer.alloc(size); + }, + allocateUnsafe(size) { + return Buffer.allocUnsafe(size); + }, + equals(a, b) { + return nodeJsByteUtils.toLocalBufferType(a).equals(b); + }, + fromNumberArray(array) { + return Buffer.from(array); + }, + fromBase64(base64) { + return Buffer.from(base64, 'base64'); + }, + toBase64(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64'); + }, + fromISO88591(codePoints) { + return Buffer.from(codePoints, 'binary'); + }, + toISO88591(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary'); + }, + fromHex(hex) { + return Buffer.from(hex, 'hex'); + }, + toHex(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex'); + }, + toUTF8(buffer, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end); + if (fatal) { + for (let i = 0; i < string.length; i++) { + if (string.charCodeAt(i) === 0xfffd) { + parseUtf8(buffer, start, end, true); + break; + } + } + } + return string; + }, + utf8ByteLength(input) { + return Buffer.byteLength(input, 'utf8'); + }, + encodeUTF8Into(buffer, source, byteOffset) { + const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset); + if (latinBytesWritten != null) { + return latinBytesWritten; + } + return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8'); + }, + randomBytes: nodejsRandomBytes +}; + +function isReactNative() { + const { navigator } = globalThis; + return typeof navigator === 'object' && navigator.product === 'ReactNative'; +} +function webMathRandomBytes(byteLength) { + if (byteLength < 0) { + throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`); + } + return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const webRandomBytes = (() => { + const { crypto } = globalThis; + if (crypto != null && typeof crypto.getRandomValues === 'function') { + return (byteLength) => { + return crypto.getRandomValues(webByteUtils.allocate(byteLength)); + }; + } + else { + if (isReactNative()) { + const { console } = globalThis; + console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'); + } + return webMathRandomBytes; + } +})(); +const HEX_DIGIT = /(\d|[a-f])/i; +const webByteUtils = { + toLocalBufferType(potentialUint8array) { + const stringTag = potentialUint8array?.[Symbol.toStringTag] ?? + Object.prototype.toString.call(potentialUint8array); + if (stringTag === 'Uint8Array') { + return potentialUint8array; + } + if (ArrayBuffer.isView(potentialUint8array)) { + return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength)); + } + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return new Uint8Array(potentialUint8array); + } + throw new BSONError(`Cannot make a Uint8Array from ${String(potentialUint8array)}`); + }, + allocate(size) { + if (typeof size !== 'number') { + throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`); + } + return new Uint8Array(size); + }, + allocateUnsafe(size) { + return webByteUtils.allocate(size); + }, + equals(a, b) { + if (a.byteLength !== b.byteLength) { + return false; + } + for (let i = 0; i < a.byteLength; i++) { + if (a[i] !== b[i]) { + return false; + } + } + return true; + }, + fromNumberArray(array) { + return Uint8Array.from(array); + }, + fromBase64(base64) { + return Uint8Array.from(atob(base64), c => c.charCodeAt(0)); + }, + toBase64(uint8array) { + return btoa(webByteUtils.toISO88591(uint8array)); + }, + fromISO88591(codePoints) { + return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff); + }, + toISO88591(uint8array) { + return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join(''); + }, + fromHex(hex) { + const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1); + const buffer = []; + for (let i = 0; i < evenLengthHex.length; i += 2) { + const firstDigit = evenLengthHex[i]; + const secondDigit = evenLengthHex[i + 1]; + if (!HEX_DIGIT.test(firstDigit)) { + break; + } + if (!HEX_DIGIT.test(secondDigit)) { + break; + } + const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16); + buffer.push(hexDigit); + } + return Uint8Array.from(buffer); + }, + toHex(uint8array) { + return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join(''); + }, + toUTF8(uint8array, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + return parseUtf8(uint8array, start, end, fatal); + }, + utf8ByteLength(input) { + return new TextEncoder().encode(input).byteLength; + }, + encodeUTF8Into(uint8array, source, byteOffset) { + const bytes = new TextEncoder().encode(source); + uint8array.set(bytes, byteOffset); + return bytes.byteLength; + }, + randomBytes: webRandomBytes +}; + +const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true; +const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils; + +class BSONValue { + get [Symbol.for('@@mdb.bson.version')]() { + return BSON_MAJOR_VERSION; + } + [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) { + return this.inspect(depth, options, inspect); + } +} + +class Binary extends BSONValue { + get _bsontype() { + return 'Binary'; + } + constructor(buffer, subType) { + super(); + if (!(buffer == null) && + typeof buffer === 'string' && + !ArrayBuffer.isView(buffer) && + !isAnyArrayBuffer(buffer) && + !Array.isArray(buffer)) { + throw new BSONError('Binary can only be constructed from Uint8Array or number[]'); + } + this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT; + if (buffer == null) { + this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE); + this.position = 0; + } + else { + this.buffer = Array.isArray(buffer) + ? ByteUtils.fromNumberArray(buffer) + : ByteUtils.toLocalBufferType(buffer); + this.position = this.buffer.byteLength; + } + } + put(byteValue) { + if (typeof byteValue === 'string' && byteValue.length !== 1) { + throw new BSONError('only accepts single character String'); + } + else if (typeof byteValue !== 'number' && byteValue.length !== 1) + throw new BSONError('only accepts single character Uint8Array or Array'); + let decodedByte; + if (typeof byteValue === 'string') { + decodedByte = byteValue.charCodeAt(0); + } + else if (typeof byteValue === 'number') { + decodedByte = byteValue; + } + else { + decodedByte = byteValue[0]; + } + if (decodedByte < 0 || decodedByte > 255) { + throw new BSONError('only accepts number in a valid unsigned byte range 0-255'); + } + if (this.buffer.byteLength > this.position) { + this.buffer[this.position++] = decodedByte; + } + else { + const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + this.buffer[this.position++] = decodedByte; + } + } + write(sequence, offset) { + offset = typeof offset === 'number' ? offset : this.position; + if (this.buffer.byteLength < offset + sequence.length) { + const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + } + if (ArrayBuffer.isView(sequence)) { + this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset); + this.position = + offset + sequence.byteLength > this.position ? offset + sequence.length : this.position; + } + else if (typeof sequence === 'string') { + throw new BSONError('input cannot be string'); + } + } + read(position, length) { + length = length && length > 0 ? length : this.position; + return this.buffer.slice(position, position + length); + } + value() { + return this.buffer.length === this.position + ? this.buffer + : this.buffer.subarray(0, this.position); + } + length() { + return this.position; + } + toJSON() { + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.buffer.subarray(0, this.position)); + if (encoding === 'base64') + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + if (encoding === 'utf8' || encoding === 'utf-8') + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + } + toExtendedJSON(options) { + options = options || {}; + const base64String = ByteUtils.toBase64(this.buffer); + const subType = Number(this.sub_type).toString(16); + if (options.legacy) { + return { + $binary: base64String, + $type: subType.length === 1 ? '0' + subType : subType + }; + } + return { + $binary: { + base64: base64String, + subType: subType.length === 1 ? '0' + subType : subType + } + }; + } + toUUID() { + if (this.sub_type === Binary.SUBTYPE_UUID) { + return new UUID(this.buffer.slice(0, this.position)); + } + throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`); + } + static createFromHexString(hex, subType) { + return new Binary(ByteUtils.fromHex(hex), subType); + } + static createFromBase64(base64, subType) { + return new Binary(ByteUtils.fromBase64(base64), subType); + } + static fromExtendedJSON(doc, options) { + options = options || {}; + let data; + let type; + if ('$binary' in doc) { + if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) { + type = doc.$type ? parseInt(doc.$type, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary); + } + else { + if (typeof doc.$binary !== 'string') { + type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary.base64); + } + } + } + else if ('$uuid' in doc) { + type = 4; + data = UUID.bytesFromString(doc.$uuid); + } + if (!data) { + throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`); + } + return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + const base64Arg = inspect(base64, options); + const subTypeArg = inspect(this.sub_type, options); + return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`; + } +} +Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0; +Binary.BUFFER_SIZE = 256; +Binary.SUBTYPE_DEFAULT = 0; +Binary.SUBTYPE_FUNCTION = 1; +Binary.SUBTYPE_BYTE_ARRAY = 2; +Binary.SUBTYPE_UUID_OLD = 3; +Binary.SUBTYPE_UUID = 4; +Binary.SUBTYPE_MD5 = 5; +Binary.SUBTYPE_ENCRYPTED = 6; +Binary.SUBTYPE_COLUMN = 7; +Binary.SUBTYPE_SENSITIVE = 8; +Binary.SUBTYPE_USER_DEFINED = 128; +const UUID_BYTE_LENGTH = 16; +const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i; +const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i; +class UUID extends Binary { + constructor(input) { + let bytes; + if (input == null) { + bytes = UUID.generate(); + } + else if (input instanceof UUID) { + bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer)); + } + else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) { + bytes = ByteUtils.toLocalBufferType(input); + } + else if (typeof input === 'string') { + bytes = UUID.bytesFromString(input); + } + else { + throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'); + } + super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW); + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + } + toHexString(includeDashes = true) { + if (includeDashes) { + return [ + ByteUtils.toHex(this.buffer.subarray(0, 4)), + ByteUtils.toHex(this.buffer.subarray(4, 6)), + ByteUtils.toHex(this.buffer.subarray(6, 8)), + ByteUtils.toHex(this.buffer.subarray(8, 10)), + ByteUtils.toHex(this.buffer.subarray(10, 16)) + ].join('-'); + } + return ByteUtils.toHex(this.buffer); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.id); + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + equals(otherId) { + if (!otherId) { + return false; + } + if (otherId instanceof UUID) { + return ByteUtils.equals(otherId.id, this.id); + } + try { + return ByteUtils.equals(new UUID(otherId).id, this.id); + } + catch { + return false; + } + } + toBinary() { + return new Binary(this.id, Binary.SUBTYPE_UUID); + } + static generate() { + const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH); + bytes[6] = (bytes[6] & 0x0f) | 0x40; + bytes[8] = (bytes[8] & 0x3f) | 0x80; + return bytes; + } + static isValid(input) { + if (!input) { + return false; + } + if (typeof input === 'string') { + return UUID.isValidUUIDString(input); + } + if (isUint8Array(input)) { + return input.byteLength === UUID_BYTE_LENGTH; + } + return (input._bsontype === 'Binary' && + input.sub_type === this.SUBTYPE_UUID && + input.buffer.byteLength === 16); + } + static createFromHexString(hexString) { + const buffer = UUID.bytesFromString(hexString); + return new UUID(buffer); + } + static createFromBase64(base64) { + return new UUID(ByteUtils.fromBase64(base64)); + } + static bytesFromString(representation) { + if (!UUID.isValidUUIDString(representation)) { + throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation'); + } + return ByteUtils.fromHex(representation.replace(/-/g, '')); + } + static isValidUUIDString(representation) { + return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new UUID(${inspect(this.toHexString(), options)})`; + } +} + +class Code extends BSONValue { + get _bsontype() { + return 'Code'; + } + constructor(code, scope) { + super(); + this.code = code.toString(); + this.scope = scope ?? null; + } + toJSON() { + if (this.scope != null) { + return { code: this.code, scope: this.scope }; + } + return { code: this.code }; + } + toExtendedJSON() { + if (this.scope) { + return { $code: this.code, $scope: this.scope }; + } + return { $code: this.code }; + } + static fromExtendedJSON(doc) { + return new Code(doc.$code, doc.$scope); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + let parametersString = inspect(this.code, options); + const multiLineFn = parametersString.includes('\n'); + if (this.scope != null) { + parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`; + } + const endingNewline = multiLineFn && this.scope === null; + return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`; + } +} + +function isDBRefLike(value) { + return (value != null && + typeof value === 'object' && + '$id' in value && + value.$id != null && + '$ref' in value && + typeof value.$ref === 'string' && + (!('$db' in value) || ('$db' in value && typeof value.$db === 'string'))); +} +class DBRef extends BSONValue { + get _bsontype() { + return 'DBRef'; + } + constructor(collection, oid, db, fields) { + super(); + const parts = collection.split('.'); + if (parts.length === 2) { + db = parts.shift(); + collection = parts.shift(); + } + this.collection = collection; + this.oid = oid; + this.db = db; + this.fields = fields || {}; + } + get namespace() { + return this.collection; + } + set namespace(value) { + this.collection = value; + } + toJSON() { + const o = Object.assign({ + $ref: this.collection, + $id: this.oid + }, this.fields); + if (this.db != null) + o.$db = this.db; + return o; + } + toExtendedJSON(options) { + options = options || {}; + let o = { + $ref: this.collection, + $id: this.oid + }; + if (options.legacy) { + return o; + } + if (this.db) + o.$db = this.db; + o = Object.assign(o, this.fields); + return o; + } + static fromExtendedJSON(doc) { + const copy = Object.assign({}, doc); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(doc.$ref, doc.$id, doc.$db, copy); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const args = [ + inspect(this.namespace, options), + inspect(this.oid, options), + ...(this.db ? [inspect(this.db, options)] : []), + ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : []) + ]; + args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1]; + return `new DBRef(${args.join(', ')})`; + } +} + +function removeLeadingZerosAndExplicitPlus(str) { + if (str === '') { + return str; + } + let startIndex = 0; + const isNegative = str[startIndex] === '-'; + const isExplicitlyPositive = str[startIndex] === '+'; + if (isExplicitlyPositive || isNegative) { + startIndex += 1; + } + let foundInsignificantZero = false; + for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) { + foundInsignificantZero = true; + } + if (!foundInsignificantZero) { + return isExplicitlyPositive ? str.slice(1) : str; + } + return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`; +} +function validateStringCharacters(str, radix) { + radix = radix ?? 10; + const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix); + const regex = new RegExp(`[^-+${validCharacters}]`, 'i'); + return regex.test(str) ? false : str; +} + +let wasm = undefined; +try { + wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports; +} +catch { +} +const TWO_PWR_16_DBL = 1 << 16; +const TWO_PWR_24_DBL = 1 << 24; +const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL; +const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL; +const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2; +const INT_CACHE = {}; +const UINT_CACHE = {}; +const MAX_INT64_STRING_LENGTH = 20; +const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/; +class Long extends BSONValue { + get _bsontype() { + return 'Long'; + } + get __isLong__() { + return true; + } + constructor(lowOrValue = 0, highOrUnsigned, unsigned) { + super(); + const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned); + const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0; + const res = typeof lowOrValue === 'string' + ? Long.fromString(lowOrValue, unsignedBool) + : typeof lowOrValue === 'bigint' + ? Long.fromBigInt(lowOrValue, unsignedBool) + : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool }; + this.low = res.low; + this.high = res.high; + this.unsigned = res.unsigned; + } + static fromBits(lowBits, highBits, unsigned) { + return new Long(lowBits, highBits, unsigned); + } + static fromInt(value, unsigned) { + let obj, cachedObj, cache; + if (unsigned) { + value >>>= 0; + if ((cache = 0 <= value && value < 256)) { + cachedObj = UINT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true); + if (cache) + UINT_CACHE[value] = obj; + return obj; + } + else { + value |= 0; + if ((cache = -128 <= value && value < 128)) { + cachedObj = INT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, value < 0 ? -1 : 0, false); + if (cache) + INT_CACHE[value] = obj; + return obj; + } + } + static fromNumber(value, unsigned) { + if (isNaN(value)) + return unsigned ? Long.UZERO : Long.ZERO; + if (unsigned) { + if (value < 0) + return Long.UZERO; + if (value >= TWO_PWR_64_DBL) + return Long.MAX_UNSIGNED_VALUE; + } + else { + if (value <= -TWO_PWR_63_DBL) + return Long.MIN_VALUE; + if (value + 1 >= TWO_PWR_63_DBL) + return Long.MAX_VALUE; + } + if (value < 0) + return Long.fromNumber(-value, unsigned).neg(); + return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned); + } + static fromBigInt(value, unsigned) { + const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff); + const FROM_BIGINT_BIT_SHIFT = BigInt(32); + return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned); + } + static _fromString(str, unsigned, radix) { + if (str.length === 0) + throw new BSONError('empty string'); + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + let p; + if ((p = str.indexOf('-')) > 0) + throw new BSONError('interior hyphen'); + else if (p === 0) { + return Long._fromString(str.substring(1), unsigned, radix).neg(); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 8)); + let result = Long.ZERO; + for (let i = 0; i < str.length; i += 8) { + const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix); + if (size < 8) { + const power = Long.fromNumber(Math.pow(radix, size)); + result = result.mul(power).add(Long.fromNumber(value)); + } + else { + result = result.mul(radixToPower); + result = result.add(Long.fromNumber(value)); + } + } + result.unsigned = unsigned; + return result; + } + static fromStringStrict(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str.trim() !== str) { + throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`); + } + if (!validateStringCharacters(str, radix)) { + throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`); + } + const cleanedStr = removeLeadingZerosAndExplicitPlus(str); + const result = Long._fromString(cleanedStr, unsigned, radix); + if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) { + throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`); + } + return result; + } + static fromString(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str === 'NaN' && radix < 24) { + return Long.ZERO; + } + else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) { + return Long.ZERO; + } + return Long._fromString(str, unsigned, radix); + } + static fromBytes(bytes, unsigned, le) { + return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned); + } + static fromBytesLE(bytes, unsigned) { + return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned); + } + static fromBytesBE(bytes, unsigned) { + return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned); + } + static isLong(value) { + return (value != null && + typeof value === 'object' && + '__isLong__' in value && + value.__isLong__ === true); + } + static fromValue(val, unsigned) { + if (typeof val === 'number') + return Long.fromNumber(val, unsigned); + if (typeof val === 'string') + return Long.fromString(val, unsigned); + return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned); + } + add(addend) { + if (!Long.isLong(addend)) + addend = Long.fromValue(addend); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = addend.high >>> 16; + const b32 = addend.high & 0xffff; + const b16 = addend.low >>> 16; + const b00 = addend.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 + b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 + b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 + b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 + b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + and(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned); + } + compare(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.eq(other)) + return 0; + const thisNeg = this.isNegative(), otherNeg = other.isNegative(); + if (thisNeg && !otherNeg) + return -1; + if (!thisNeg && otherNeg) + return 1; + if (!this.unsigned) + return this.sub(other).isNegative() ? -1 : 1; + return other.high >>> 0 > this.high >>> 0 || + (other.high === this.high && other.low >>> 0 > this.low >>> 0) + ? -1 + : 1; + } + comp(other) { + return this.compare(other); + } + divide(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (divisor.isZero()) + throw new BSONError('division by zero'); + if (wasm) { + if (!this.unsigned && + this.high === -0x80000000 && + divisor.low === -1 && + divisor.high === -1) { + return this; + } + const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (this.isZero()) + return this.unsigned ? Long.UZERO : Long.ZERO; + let approx, rem, res; + if (!this.unsigned) { + if (this.eq(Long.MIN_VALUE)) { + if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) + return Long.MIN_VALUE; + else if (divisor.eq(Long.MIN_VALUE)) + return Long.ONE; + else { + const halfThis = this.shr(1); + approx = halfThis.div(divisor).shl(1); + if (approx.eq(Long.ZERO)) { + return divisor.isNegative() ? Long.ONE : Long.NEG_ONE; + } + else { + rem = this.sub(divisor.mul(approx)); + res = approx.add(rem.div(divisor)); + return res; + } + } + } + else if (divisor.eq(Long.MIN_VALUE)) + return this.unsigned ? Long.UZERO : Long.ZERO; + if (this.isNegative()) { + if (divisor.isNegative()) + return this.neg().div(divisor.neg()); + return this.neg().div(divisor).neg(); + } + else if (divisor.isNegative()) + return this.div(divisor.neg()).neg(); + res = Long.ZERO; + } + else { + if (!divisor.unsigned) + divisor = divisor.toUnsigned(); + if (divisor.gt(this)) + return Long.UZERO; + if (divisor.gt(this.shru(1))) + return Long.UONE; + res = Long.UZERO; + } + rem = this; + while (rem.gte(divisor)) { + approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber())); + const log2 = Math.ceil(Math.log(approx) / Math.LN2); + const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48); + let approxRes = Long.fromNumber(approx); + let approxRem = approxRes.mul(divisor); + while (approxRem.isNegative() || approxRem.gt(rem)) { + approx -= delta; + approxRes = Long.fromNumber(approx, this.unsigned); + approxRem = approxRes.mul(divisor); + } + if (approxRes.isZero()) + approxRes = Long.ONE; + res = res.add(approxRes); + rem = rem.sub(approxRem); + } + return res; + } + div(divisor) { + return this.divide(divisor); + } + equals(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1) + return false; + return this.high === other.high && this.low === other.low; + } + eq(other) { + return this.equals(other); + } + getHighBits() { + return this.high; + } + getHighBitsUnsigned() { + return this.high >>> 0; + } + getLowBits() { + return this.low; + } + getLowBitsUnsigned() { + return this.low >>> 0; + } + getNumBitsAbs() { + if (this.isNegative()) { + return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs(); + } + const val = this.high !== 0 ? this.high : this.low; + let bit; + for (bit = 31; bit > 0; bit--) + if ((val & (1 << bit)) !== 0) + break; + return this.high !== 0 ? bit + 33 : bit + 1; + } + greaterThan(other) { + return this.comp(other) > 0; + } + gt(other) { + return this.greaterThan(other); + } + greaterThanOrEqual(other) { + return this.comp(other) >= 0; + } + gte(other) { + return this.greaterThanOrEqual(other); + } + ge(other) { + return this.greaterThanOrEqual(other); + } + isEven() { + return (this.low & 1) === 0; + } + isNegative() { + return !this.unsigned && this.high < 0; + } + isOdd() { + return (this.low & 1) === 1; + } + isPositive() { + return this.unsigned || this.high >= 0; + } + isZero() { + return this.high === 0 && this.low === 0; + } + lessThan(other) { + return this.comp(other) < 0; + } + lt(other) { + return this.lessThan(other); + } + lessThanOrEqual(other) { + return this.comp(other) <= 0; + } + lte(other) { + return this.lessThanOrEqual(other); + } + modulo(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (wasm) { + const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + return this.sub(this.div(divisor).mul(divisor)); + } + mod(divisor) { + return this.modulo(divisor); + } + rem(divisor) { + return this.modulo(divisor); + } + multiply(multiplier) { + if (this.isZero()) + return Long.ZERO; + if (!Long.isLong(multiplier)) + multiplier = Long.fromValue(multiplier); + if (wasm) { + const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (multiplier.isZero()) + return Long.ZERO; + if (this.eq(Long.MIN_VALUE)) + return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (multiplier.eq(Long.MIN_VALUE)) + return this.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (this.isNegative()) { + if (multiplier.isNegative()) + return this.neg().mul(multiplier.neg()); + else + return this.neg().mul(multiplier).neg(); + } + else if (multiplier.isNegative()) + return this.mul(multiplier.neg()).neg(); + if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24)) + return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = multiplier.high >>> 16; + const b32 = multiplier.high & 0xffff; + const b16 = multiplier.low >>> 16; + const b00 = multiplier.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 * b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 * b00; + c32 += c16 >>> 16; + c16 &= 0xffff; + c16 += a00 * b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 * b00; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a16 * b16; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a00 * b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + mul(multiplier) { + return this.multiply(multiplier); + } + negate() { + if (!this.unsigned && this.eq(Long.MIN_VALUE)) + return Long.MIN_VALUE; + return this.not().add(Long.ONE); + } + neg() { + return this.negate(); + } + not() { + return Long.fromBits(~this.low, ~this.high, this.unsigned); + } + notEquals(other) { + return !this.equals(other); + } + neq(other) { + return this.notEquals(other); + } + ne(other) { + return this.notEquals(other); + } + or(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned); + } + shiftLeft(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned); + else + return Long.fromBits(0, this.low << (numBits - 32), this.unsigned); + } + shl(numBits) { + return this.shiftLeft(numBits); + } + shiftRight(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned); + else + return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned); + } + shr(numBits) { + return this.shiftRight(numBits); + } + shiftRightUnsigned(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + numBits &= 63; + if (numBits === 0) + return this; + else { + const high = this.high; + if (numBits < 32) { + const low = this.low; + return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned); + } + else if (numBits === 32) + return Long.fromBits(high, 0, this.unsigned); + else + return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned); + } + } + shr_u(numBits) { + return this.shiftRightUnsigned(numBits); + } + shru(numBits) { + return this.shiftRightUnsigned(numBits); + } + subtract(subtrahend) { + if (!Long.isLong(subtrahend)) + subtrahend = Long.fromValue(subtrahend); + return this.add(subtrahend.neg()); + } + sub(subtrahend) { + return this.subtract(subtrahend); + } + toInt() { + return this.unsigned ? this.low >>> 0 : this.low; + } + toNumber() { + if (this.unsigned) + return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0); + return this.high * TWO_PWR_32_DBL + (this.low >>> 0); + } + toBigInt() { + return BigInt(this.toString()); + } + toBytes(le) { + return le ? this.toBytesLE() : this.toBytesBE(); + } + toBytesLE() { + const hi = this.high, lo = this.low; + return [ + lo & 0xff, + (lo >>> 8) & 0xff, + (lo >>> 16) & 0xff, + lo >>> 24, + hi & 0xff, + (hi >>> 8) & 0xff, + (hi >>> 16) & 0xff, + hi >>> 24 + ]; + } + toBytesBE() { + const hi = this.high, lo = this.low; + return [ + hi >>> 24, + (hi >>> 16) & 0xff, + (hi >>> 8) & 0xff, + hi & 0xff, + lo >>> 24, + (lo >>> 16) & 0xff, + (lo >>> 8) & 0xff, + lo & 0xff + ]; + } + toSigned() { + if (!this.unsigned) + return this; + return Long.fromBits(this.low, this.high, false); + } + toString(radix) { + radix = radix || 10; + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + if (this.isZero()) + return '0'; + if (this.isNegative()) { + if (this.eq(Long.MIN_VALUE)) { + const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this); + return div.toString(radix) + rem1.toInt().toString(radix); + } + else + return '-' + this.neg().toString(radix); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned); + let rem = this; + let result = ''; + while (true) { + const remDiv = rem.div(radixToPower); + const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0; + let digits = intval.toString(radix); + rem = remDiv; + if (rem.isZero()) { + return digits + result; + } + else { + while (digits.length < 6) + digits = '0' + digits; + result = '' + digits + result; + } + } + } + toUnsigned() { + if (this.unsigned) + return this; + return Long.fromBits(this.low, this.high, true); + } + xor(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned); + } + eqz() { + return this.isZero(); + } + le(other) { + return this.lessThanOrEqual(other); + } + toExtendedJSON(options) { + if (options && options.relaxed) + return this.toNumber(); + return { $numberLong: this.toString() }; + } + static fromExtendedJSON(doc, options) { + const { useBigInt64 = false, relaxed = true } = { ...options }; + if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) { + throw new BSONError('$numberLong string is too long'); + } + if (!DECIMAL_REG_EX.test(doc.$numberLong)) { + throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`); + } + if (useBigInt64) { + const bigIntResult = BigInt(doc.$numberLong); + return BigInt.asIntN(64, bigIntResult); + } + const longResult = Long.fromString(doc.$numberLong); + if (relaxed) { + return longResult.toNumber(); + } + return longResult; + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const longVal = inspect(this.toString(), options); + const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : ''; + return `new Long(${longVal}${unsignedVal})`; + } +} +Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL); +Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true); +Long.ZERO = Long.fromInt(0); +Long.UZERO = Long.fromInt(0, true); +Long.ONE = Long.fromInt(1); +Long.UONE = Long.fromInt(1, true); +Long.NEG_ONE = Long.fromInt(-1); +Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false); +Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false); + +const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/; +const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i; +const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i; +const EXPONENT_MAX = 6111; +const EXPONENT_MIN = -6176; +const EXPONENT_BIAS = 6176; +const MAX_DIGITS = 34; +const NAN_BUFFER = ByteUtils.fromNumberArray([ + 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([ + 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([ + 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const EXPONENT_REGEX = /^([-+])?(\d+)?$/; +const COMBINATION_MASK = 0x1f; +const EXPONENT_MASK = 0x3fff; +const COMBINATION_INFINITY = 30; +const COMBINATION_NAN = 31; +function isDigit(value) { + return !isNaN(parseInt(value, 10)); +} +function divideu128(value) { + const DIVISOR = Long.fromNumber(1000 * 1000 * 1000); + let _rem = Long.fromNumber(0); + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) { + return { quotient: value, rem: _rem }; + } + for (let i = 0; i <= 3; i++) { + _rem = _rem.shiftLeft(32); + _rem = _rem.add(new Long(value.parts[i], 0)); + value.parts[i] = _rem.div(DIVISOR).low; + _rem = _rem.modulo(DIVISOR); + } + return { quotient: value, rem: _rem }; +} +function multiply64x2(left, right) { + if (!left && !right) { + return { high: Long.fromNumber(0), low: Long.fromNumber(0) }; + } + const leftHigh = left.shiftRightUnsigned(32); + const leftLow = new Long(left.getLowBits(), 0); + const rightHigh = right.shiftRightUnsigned(32); + const rightLow = new Long(right.getLowBits(), 0); + let productHigh = leftHigh.multiply(rightHigh); + let productMid = leftHigh.multiply(rightLow); + const productMid2 = leftLow.multiply(rightHigh); + let productLow = leftLow.multiply(rightLow); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productMid = new Long(productMid.getLowBits(), 0) + .add(productMid2) + .add(productLow.shiftRightUnsigned(32)); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0)); + return { high: productHigh, low: productLow }; +} +function lessThan(left, right) { + const uhleft = left.high >>> 0; + const uhright = right.high >>> 0; + if (uhleft < uhright) { + return true; + } + else if (uhleft === uhright) { + const ulleft = left.low >>> 0; + const ulright = right.low >>> 0; + if (ulleft < ulright) + return true; + } + return false; +} +function invalidErr(string, message) { + throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`); +} +class Decimal128 extends BSONValue { + get _bsontype() { + return 'Decimal128'; + } + constructor(bytes) { + super(); + if (typeof bytes === 'string') { + this.bytes = Decimal128.fromString(bytes).bytes; + } + else if (isUint8Array(bytes)) { + if (bytes.byteLength !== 16) { + throw new BSONError('Decimal128 must take a Buffer of 16 bytes'); + } + this.bytes = bytes; + } + else { + throw new BSONError('Decimal128 must take a Buffer or string'); + } + } + static fromString(representation) { + return Decimal128._fromString(representation, { allowRounding: false }); + } + static fromStringWithRounding(representation) { + return Decimal128._fromString(representation, { allowRounding: true }); + } + static _fromString(representation, options) { + let isNegative = false; + let sawSign = false; + let sawRadix = false; + let foundNonZero = false; + let significantDigits = 0; + let nDigitsRead = 0; + let nDigits = 0; + let radixPosition = 0; + let firstNonZero = 0; + const digits = [0]; + let nDigitsStored = 0; + let digitsInsert = 0; + let lastDigit = 0; + let exponent = 0; + let significandHigh = new Long(0, 0); + let significandLow = new Long(0, 0); + let biasedExponent = 0; + let index = 0; + if (representation.length >= 7000) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + const stringMatch = representation.match(PARSE_STRING_REGEXP); + const infMatch = representation.match(PARSE_INF_REGEXP); + const nanMatch = representation.match(PARSE_NAN_REGEXP); + if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + if (stringMatch) { + const unsignedNumber = stringMatch[2]; + const e = stringMatch[4]; + const expSign = stringMatch[5]; + const expNumber = stringMatch[6]; + if (e && expNumber === undefined) + invalidErr(representation, 'missing exponent power'); + if (e && unsignedNumber === undefined) + invalidErr(representation, 'missing exponent base'); + if (e === undefined && (expSign || expNumber)) { + invalidErr(representation, 'missing e before exponent'); + } + } + if (representation[index] === '+' || representation[index] === '-') { + sawSign = true; + isNegative = representation[index++] === '-'; + } + if (!isDigit(representation[index]) && representation[index] !== '.') { + if (representation[index] === 'i' || representation[index] === 'I') { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + else if (representation[index] === 'N') { + return new Decimal128(NAN_BUFFER); + } + } + while (isDigit(representation[index]) || representation[index] === '.') { + if (representation[index] === '.') { + if (sawRadix) + invalidErr(representation, 'contains multiple periods'); + sawRadix = true; + index = index + 1; + continue; + } + if (nDigitsStored < MAX_DIGITS) { + if (representation[index] !== '0' || foundNonZero) { + if (!foundNonZero) { + firstNonZero = nDigitsRead; + } + foundNonZero = true; + digits[digitsInsert++] = parseInt(representation[index], 10); + nDigitsStored = nDigitsStored + 1; + } + } + if (foundNonZero) + nDigits = nDigits + 1; + if (sawRadix) + radixPosition = radixPosition + 1; + nDigitsRead = nDigitsRead + 1; + index = index + 1; + } + if (sawRadix && !nDigitsRead) + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + if (representation[index] === 'e' || representation[index] === 'E') { + const match = representation.substr(++index).match(EXPONENT_REGEX); + if (!match || !match[2]) + return new Decimal128(NAN_BUFFER); + exponent = parseInt(match[0], 10); + index = index + match[0].length; + } + if (representation[index]) + return new Decimal128(NAN_BUFFER); + if (!nDigitsStored) { + digits[0] = 0; + nDigits = 1; + nDigitsStored = 1; + significantDigits = 0; + } + else { + lastDigit = nDigitsStored - 1; + significantDigits = nDigits; + if (significantDigits !== 1) { + while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') { + significantDigits = significantDigits - 1; + } + } + } + if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) { + exponent = EXPONENT_MIN; + } + else { + exponent = exponent - radixPosition; + } + while (exponent > EXPONENT_MAX) { + lastDigit = lastDigit + 1; + if (lastDigit >= MAX_DIGITS) { + if (significantDigits === 0) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + exponent = exponent - 1; + } + if (options.allowRounding) { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0 && significantDigits < nDigitsStored) { + exponent = EXPONENT_MIN; + significantDigits = 0; + break; + } + if (nDigitsStored < nDigits) { + nDigits = nDigits - 1; + } + else { + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + const digitsString = digits.join(''); + if (digitsString.match(/^0+$/)) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + let endOfString = nDigitsRead; + if (sawRadix) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + let roundBit = 0; + if (roundDigit >= 5) { + roundBit = 1; + if (roundDigit === 5) { + roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0; + for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) { + if (parseInt(representation[i], 10)) { + roundBit = 1; + break; + } + } + } + } + if (roundBit) { + let dIdx = lastDigit; + for (; dIdx >= 0; dIdx--) { + if (++digits[dIdx] > 9) { + digits[dIdx] = 0; + if (dIdx === 0) { + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + digits[dIdx] = 1; + } + else { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + } + } + else { + break; + } + } + } + } + } + else { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0) { + if (significantDigits === 0) { + exponent = EXPONENT_MIN; + break; + } + invalidErr(representation, 'exponent underflow'); + } + if (nDigitsStored < nDigits) { + if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' && + significantDigits !== 0) { + invalidErr(representation, 'inexact rounding'); + } + nDigits = nDigits - 1; + } + else { + if (digits[lastDigit] !== 0) { + invalidErr(representation, 'inexact rounding'); + } + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + if (sawRadix) { + firstNonZero = firstNonZero + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + if (roundDigit !== 0) { + invalidErr(representation, 'inexact rounding'); + } + } + } + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + if (significantDigits === 0) { + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + } + else if (lastDigit < 17) { + let dIdx = 0; + significandLow = Long.fromNumber(digits[dIdx++]); + significandHigh = new Long(0, 0); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + else { + let dIdx = 0; + significandHigh = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit - 17; dIdx++) { + significandHigh = significandHigh.multiply(Long.fromNumber(10)); + significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx])); + } + significandLow = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000')); + significand.low = significand.low.add(significandLow); + if (lessThan(significand.low, significandLow)) { + significand.high = significand.high.add(Long.fromNumber(1)); + } + biasedExponent = exponent + EXPONENT_BIAS; + const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) }; + if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) { + dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61)); + dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff))); + } + else { + dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49)); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff))); + } + dec.low = significand.low; + if (isNegative) { + dec.high = dec.high.or(Long.fromString('9223372036854775808')); + } + const buffer = ByteUtils.allocateUnsafe(16); + index = 0; + buffer[index++] = dec.low.low & 0xff; + buffer[index++] = (dec.low.low >> 8) & 0xff; + buffer[index++] = (dec.low.low >> 16) & 0xff; + buffer[index++] = (dec.low.low >> 24) & 0xff; + buffer[index++] = dec.low.high & 0xff; + buffer[index++] = (dec.low.high >> 8) & 0xff; + buffer[index++] = (dec.low.high >> 16) & 0xff; + buffer[index++] = (dec.low.high >> 24) & 0xff; + buffer[index++] = dec.high.low & 0xff; + buffer[index++] = (dec.high.low >> 8) & 0xff; + buffer[index++] = (dec.high.low >> 16) & 0xff; + buffer[index++] = (dec.high.low >> 24) & 0xff; + buffer[index++] = dec.high.high & 0xff; + buffer[index++] = (dec.high.high >> 8) & 0xff; + buffer[index++] = (dec.high.high >> 16) & 0xff; + buffer[index++] = (dec.high.high >> 24) & 0xff; + return new Decimal128(buffer); + } + toString() { + let biased_exponent; + let significand_digits = 0; + const significand = new Array(36); + for (let i = 0; i < significand.length; i++) + significand[i] = 0; + let index = 0; + let is_zero = false; + let significand_msb; + let significand128 = { parts: [0, 0, 0, 0] }; + let j, k; + const string = []; + index = 0; + const buffer = this.bytes; + const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + index = 0; + const dec = { + low: new Long(low, midl), + high: new Long(midh, high) + }; + if (dec.high.lessThan(Long.ZERO)) { + string.push('-'); + } + const combination = (high >> 26) & COMBINATION_MASK; + if (combination >> 3 === 3) { + if (combination === COMBINATION_INFINITY) { + return string.join('') + 'Infinity'; + } + else if (combination === COMBINATION_NAN) { + return 'NaN'; + } + else { + biased_exponent = (high >> 15) & EXPONENT_MASK; + significand_msb = 0x08 + ((high >> 14) & 0x01); + } + } + else { + significand_msb = (high >> 14) & 0x07; + biased_exponent = (high >> 17) & EXPONENT_MASK; + } + const exponent = biased_exponent - EXPONENT_BIAS; + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + if (significand128.parts[0] === 0 && + significand128.parts[1] === 0 && + significand128.parts[2] === 0 && + significand128.parts[3] === 0) { + is_zero = true; + } + else { + for (k = 3; k >= 0; k--) { + let least_digits = 0; + const result = divideu128(significand128); + significand128 = result.quotient; + least_digits = result.rem.low; + if (!least_digits) + continue; + for (j = 8; j >= 0; j--) { + significand[k * 9 + j] = least_digits % 10; + least_digits = Math.floor(least_digits / 10); + } + } + } + if (is_zero) { + significand_digits = 1; + significand[index] = 0; + } + else { + significand_digits = 36; + while (!significand[index]) { + significand_digits = significand_digits - 1; + index = index + 1; + } + } + const scientific_exponent = significand_digits - 1 + exponent; + if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) { + if (significand_digits > 34) { + string.push(`${0}`); + if (exponent > 0) + string.push(`E+${exponent}`); + else if (exponent < 0) + string.push(`E${exponent}`); + return string.join(''); + } + string.push(`${significand[index++]}`); + significand_digits = significand_digits - 1; + if (significand_digits) { + string.push('.'); + } + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + string.push('E'); + if (scientific_exponent > 0) { + string.push(`+${scientific_exponent}`); + } + else { + string.push(`${scientific_exponent}`); + } + } + else { + if (exponent >= 0) { + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + } + else { + let radix_position = significand_digits + exponent; + if (radix_position > 0) { + for (let i = 0; i < radix_position; i++) { + string.push(`${significand[index++]}`); + } + } + else { + string.push('0'); + } + string.push('.'); + while (radix_position++ < 0) { + string.push('0'); + } + for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) { + string.push(`${significand[index++]}`); + } + } + } + return string.join(''); + } + toJSON() { + return { $numberDecimal: this.toString() }; + } + toExtendedJSON() { + return { $numberDecimal: this.toString() }; + } + static fromExtendedJSON(doc) { + return Decimal128.fromString(doc.$numberDecimal); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const d128string = inspect(this.toString(), options); + return `new Decimal128(${d128string})`; + } +} + +class Double extends BSONValue { + get _bsontype() { + return 'Double'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value; + } + static fromString(value) { + const coercedValue = Number(value); + if (value === 'NaN') + return new Double(NaN); + if (value === 'Infinity') + return new Double(Infinity); + if (value === '-Infinity') + return new Double(-Infinity); + if (!Number.isFinite(coercedValue)) { + throw new BSONError(`Input: ${value} is not representable as a Double`); + } + if (value.trim() !== value) { + throw new BSONError(`Input: '${value}' contains whitespace`); + } + if (value === '') { + throw new BSONError(`Input is an empty string`); + } + if (/[^-0-9.+eE]/.test(value)) { + throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`); + } + return new Double(coercedValue); + } + valueOf() { + return this.value; + } + toJSON() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toExtendedJSON(options) { + if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) { + return this.value; + } + if (Object.is(Math.sign(this.value), -0)) { + return { $numberDouble: '-0.0' }; + } + return { + $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString() + }; + } + static fromExtendedJSON(doc, options) { + const doubleValue = parseFloat(doc.$numberDouble); + return options && options.relaxed ? doubleValue : new Double(doubleValue); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Double(${inspect(this.value, options)})`; + } +} + +class Int32 extends BSONValue { + get _bsontype() { + return 'Int32'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value | 0; + } + static fromString(value) { + const cleanedValue = removeLeadingZerosAndExplicitPlus(value); + const coercedValue = Number(value); + if (BSON_INT32_MAX < coercedValue) { + throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`); + } + else if (BSON_INT32_MIN > coercedValue) { + throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`); + } + else if (!Number.isSafeInteger(coercedValue)) { + throw new BSONError(`Input: '${value}' is not a safe integer`); + } + else if (coercedValue.toString() !== cleanedValue) { + throw new BSONError(`Input: '${value}' is not a valid Int32 string`); + } + return new Int32(coercedValue); + } + valueOf() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toJSON() { + return this.value; + } + toExtendedJSON(options) { + if (options && (options.relaxed || options.legacy)) + return this.value; + return { $numberInt: this.value.toString() }; + } + static fromExtendedJSON(doc, options) { + return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Int32(${inspect(this.value, options)})`; + } +} + +class MaxKey extends BSONValue { + get _bsontype() { + return 'MaxKey'; + } + toExtendedJSON() { + return { $maxKey: 1 }; + } + static fromExtendedJSON() { + return new MaxKey(); + } + inspect() { + return 'new MaxKey()'; + } +} + +class MinKey extends BSONValue { + get _bsontype() { + return 'MinKey'; + } + toExtendedJSON() { + return { $minKey: 1 }; + } + static fromExtendedJSON() { + return new MinKey(); + } + inspect() { + return 'new MinKey()'; + } +} + +const FLOAT = new Float64Array(1); +const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8); +FLOAT[0] = -1; +const isBigEndian = FLOAT_BYTES[7] === 0; +const NumberUtils = { + getNonnegativeInt32LE(source, offset) { + if (source[offset + 3] > 127) { + throw new RangeError(`Size cannot be negative at offset: ${offset}`); + } + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getInt32LE(source, offset) { + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getUint32LE(source, offset) { + return (source[offset] + + source[offset + 1] * 256 + + source[offset + 2] * 65536 + + source[offset + 3] * 16777216); + }, + getUint32BE(source, offset) { + return (source[offset + 3] + + source[offset + 2] * 256 + + source[offset + 1] * 65536 + + source[offset] * 16777216); + }, + getBigInt64LE(source, offset) { + const lo = NumberUtils.getUint32LE(source, offset); + const hi = NumberUtils.getUint32LE(source, offset + 4); + return (BigInt(hi) << BigInt(32)) + BigInt(lo); + }, + getFloat64LE: isBigEndian + ? (source, offset) => { + FLOAT_BYTES[7] = source[offset]; + FLOAT_BYTES[6] = source[offset + 1]; + FLOAT_BYTES[5] = source[offset + 2]; + FLOAT_BYTES[4] = source[offset + 3]; + FLOAT_BYTES[3] = source[offset + 4]; + FLOAT_BYTES[2] = source[offset + 5]; + FLOAT_BYTES[1] = source[offset + 6]; + FLOAT_BYTES[0] = source[offset + 7]; + return FLOAT[0]; + } + : (source, offset) => { + FLOAT_BYTES[0] = source[offset]; + FLOAT_BYTES[1] = source[offset + 1]; + FLOAT_BYTES[2] = source[offset + 2]; + FLOAT_BYTES[3] = source[offset + 3]; + FLOAT_BYTES[4] = source[offset + 4]; + FLOAT_BYTES[5] = source[offset + 5]; + FLOAT_BYTES[6] = source[offset + 6]; + FLOAT_BYTES[7] = source[offset + 7]; + return FLOAT[0]; + }, + setInt32BE(destination, offset, value) { + destination[offset + 3] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset] = value; + return 4; + }, + setInt32LE(destination, offset, value) { + destination[offset] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 3] = value; + return 4; + }, + setBigInt64LE(destination, offset, value) { + const mask32bits = BigInt(4294967295); + let lo = Number(value & mask32bits); + destination[offset] = lo; + lo >>= 8; + destination[offset + 1] = lo; + lo >>= 8; + destination[offset + 2] = lo; + lo >>= 8; + destination[offset + 3] = lo; + let hi = Number((value >> BigInt(32)) & mask32bits); + destination[offset + 4] = hi; + hi >>= 8; + destination[offset + 5] = hi; + hi >>= 8; + destination[offset + 6] = hi; + hi >>= 8; + destination[offset + 7] = hi; + return 8; + }, + setFloat64LE: isBigEndian + ? (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[7]; + destination[offset + 1] = FLOAT_BYTES[6]; + destination[offset + 2] = FLOAT_BYTES[5]; + destination[offset + 3] = FLOAT_BYTES[4]; + destination[offset + 4] = FLOAT_BYTES[3]; + destination[offset + 5] = FLOAT_BYTES[2]; + destination[offset + 6] = FLOAT_BYTES[1]; + destination[offset + 7] = FLOAT_BYTES[0]; + return 8; + } + : (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[0]; + destination[offset + 1] = FLOAT_BYTES[1]; + destination[offset + 2] = FLOAT_BYTES[2]; + destination[offset + 3] = FLOAT_BYTES[3]; + destination[offset + 4] = FLOAT_BYTES[4]; + destination[offset + 5] = FLOAT_BYTES[5]; + destination[offset + 6] = FLOAT_BYTES[6]; + destination[offset + 7] = FLOAT_BYTES[7]; + return 8; + } +}; + +const checkForHexRegExp = new RegExp('^[0-9a-fA-F]{24}$'); +let PROCESS_UNIQUE = null; +class ObjectId extends BSONValue { + get _bsontype() { + return 'ObjectId'; + } + constructor(inputId) { + super(); + let workingId; + if (typeof inputId === 'object' && inputId && 'id' in inputId) { + if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) { + throw new BSONError('Argument passed in must have an id that is of type string or Buffer'); + } + if ('toHexString' in inputId && typeof inputId.toHexString === 'function') { + workingId = ByteUtils.fromHex(inputId.toHexString()); + } + else { + workingId = inputId.id; + } + } + else { + workingId = inputId; + } + if (workingId == null || typeof workingId === 'number') { + this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined); + } + else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) { + this.buffer = ByteUtils.toLocalBufferType(workingId); + } + else if (typeof workingId === 'string') { + if (workingId.length === 24 && checkForHexRegExp.test(workingId)) { + this.buffer = ByteUtils.fromHex(workingId); + } + else { + throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer'); + } + } + else { + throw new BSONError('Argument passed in does not match the accepted types'); + } + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(this.id); + } + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(value); + } + } + toHexString() { + if (ObjectId.cacheHexString && this.__id) { + return this.__id; + } + const hexString = ByteUtils.toHex(this.id); + if (ObjectId.cacheHexString && !this.__id) { + this.__id = hexString; + } + return hexString; + } + static getInc() { + return (ObjectId.index = (ObjectId.index + 1) % 0xffffff); + } + static generate(time) { + if ('number' !== typeof time) { + time = Math.floor(Date.now() / 1000); + } + const inc = ObjectId.getInc(); + const buffer = ByteUtils.allocateUnsafe(12); + NumberUtils.setInt32BE(buffer, 0, time); + if (PROCESS_UNIQUE === null) { + PROCESS_UNIQUE = ByteUtils.randomBytes(5); + } + buffer[4] = PROCESS_UNIQUE[0]; + buffer[5] = PROCESS_UNIQUE[1]; + buffer[6] = PROCESS_UNIQUE[2]; + buffer[7] = PROCESS_UNIQUE[3]; + buffer[8] = PROCESS_UNIQUE[4]; + buffer[11] = inc & 0xff; + buffer[10] = (inc >> 8) & 0xff; + buffer[9] = (inc >> 16) & 0xff; + return buffer; + } + toString(encoding) { + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + if (encoding === 'hex') + return this.toHexString(); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + static is(variable) { + return (variable != null && + typeof variable === 'object' && + '_bsontype' in variable && + variable._bsontype === 'ObjectId'); + } + equals(otherId) { + if (otherId === undefined || otherId === null) { + return false; + } + if (ObjectId.is(otherId)) { + return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer)); + } + if (typeof otherId === 'string') { + return otherId.toLowerCase() === this.toHexString(); + } + if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') { + const otherIdString = otherId.toHexString(); + const thisIdString = this.toHexString(); + return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString; + } + return false; + } + getTimestamp() { + const timestamp = new Date(); + const time = NumberUtils.getUint32BE(this.buffer, 0); + timestamp.setTime(Math.floor(time) * 1000); + return timestamp; + } + static createPk() { + return new ObjectId(); + } + serializeInto(uint8array, index) { + uint8array[index] = this.buffer[0]; + uint8array[index + 1] = this.buffer[1]; + uint8array[index + 2] = this.buffer[2]; + uint8array[index + 3] = this.buffer[3]; + uint8array[index + 4] = this.buffer[4]; + uint8array[index + 5] = this.buffer[5]; + uint8array[index + 6] = this.buffer[6]; + uint8array[index + 7] = this.buffer[7]; + uint8array[index + 8] = this.buffer[8]; + uint8array[index + 9] = this.buffer[9]; + uint8array[index + 10] = this.buffer[10]; + uint8array[index + 11] = this.buffer[11]; + return 12; + } + static createFromTime(time) { + const buffer = ByteUtils.allocate(12); + for (let i = 11; i >= 4; i--) + buffer[i] = 0; + NumberUtils.setInt32BE(buffer, 0, time); + return new ObjectId(buffer); + } + static createFromHexString(hexString) { + if (hexString?.length !== 24) { + throw new BSONError('hex string must be 24 characters'); + } + return new ObjectId(ByteUtils.fromHex(hexString)); + } + static createFromBase64(base64) { + if (base64?.length !== 16) { + throw new BSONError('base64 string must be 16 characters'); + } + return new ObjectId(ByteUtils.fromBase64(base64)); + } + static isValid(id) { + if (id == null) + return false; + try { + new ObjectId(id); + return true; + } + catch { + return false; + } + } + toExtendedJSON() { + if (this.toHexString) + return { $oid: this.toHexString() }; + return { $oid: this.toString('hex') }; + } + static fromExtendedJSON(doc) { + return new ObjectId(doc.$oid); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new ObjectId(${inspect(this.toHexString(), options)})`; + } +} +ObjectId.index = Math.floor(Math.random() * 0xffffff); + +function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) { + let totalLength = 4 + 1; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined); + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + } + for (const key of Object.keys(object)) { + totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined); + } + } + return totalLength; +} +function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) { + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + switch (typeof value) { + case 'string': + return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1; + case 'number': + if (Math.floor(value) === value && + value >= JS_INT_MIN && + value <= JS_INT_MAX) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1); + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + case 'undefined': + if (isArray || !ignoreUndefined) + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + return 0; + case 'boolean': + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1); + case 'object': + if (value != null && + typeof value._bsontype === 'string' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + } + else if (value._bsontype === 'ObjectId') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1); + } + else if (value instanceof Date || isDate(value)) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (ArrayBuffer.isView(value) || + value instanceof ArrayBuffer || + isAnyArrayBuffer(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength); + } + else if (value._bsontype === 'Long' || + value._bsontype === 'Double' || + value._bsontype === 'Timestamp') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (value._bsontype === 'Decimal128') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1); + } + else if (value._bsontype === 'Code') { + if (value.scope != null && Object.keys(value.scope).length > 0) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1 + + internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1); + } + } + else if (value._bsontype === 'Binary') { + const binary = value; + if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + (binary.position + 1 + 4 + 1 + 4)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1)); + } + } + else if (value._bsontype === 'Symbol') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + ByteUtils.utf8ByteLength(value.value) + + 4 + + 1 + + 1); + } + else if (value._bsontype === 'DBRef') { + const ordered_values = Object.assign({ + $ref: value.collection, + $id: value.oid + }, value.fields); + if (value.db != null) { + ordered_values['$db'] = value.db; + } + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined)); + } + else if (value instanceof RegExp || isRegExp(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.source) + + 1 + + (value.global ? 1 : 0) + + (value.ignoreCase ? 1 : 0) + + (value.multiline ? 1 : 0) + + 1); + } + else if (value._bsontype === 'BSONRegExp') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.pattern) + + 1 + + ByteUtils.utf8ByteLength(value.options) + + 1); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) + + 1); + } + case 'function': + if (serializeFunctions) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.toString()) + + 1); + } + } + return 0; +} + +function alphabetize(str) { + return str.split('').sort().join(''); +} +class BSONRegExp extends BSONValue { + get _bsontype() { + return 'BSONRegExp'; + } + constructor(pattern, options) { + super(); + this.pattern = pattern; + this.options = alphabetize(options ?? ''); + if (this.pattern.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`); + } + if (this.options.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`); + } + for (let i = 0; i < this.options.length; i++) { + if (!(this.options[i] === 'i' || + this.options[i] === 'm' || + this.options[i] === 'x' || + this.options[i] === 'l' || + this.options[i] === 's' || + this.options[i] === 'u')) { + throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`); + } + } + } + static parseOptions(options) { + return options ? options.split('').sort().join('') : ''; + } + toExtendedJSON(options) { + options = options || {}; + if (options.legacy) { + return { $regex: this.pattern, $options: this.options }; + } + return { $regularExpression: { pattern: this.pattern, options: this.options } }; + } + static fromExtendedJSON(doc) { + if ('$regex' in doc) { + if (typeof doc.$regex !== 'string') { + if (doc.$regex._bsontype === 'BSONRegExp') { + return doc; + } + } + else { + return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options)); + } + } + if ('$regularExpression' in doc) { + return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options)); + } + throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`); + } + inspect(depth, options, inspect) { + const stylize = getStylizeFunction(options) ?? (v => v); + inspect ??= defaultInspect; + const pattern = stylize(inspect(this.pattern), 'regexp'); + const flags = stylize(inspect(this.options), 'regexp'); + return `new BSONRegExp(${pattern}, ${flags})`; + } +} + +class BSONSymbol extends BSONValue { + get _bsontype() { + return 'BSONSymbol'; + } + constructor(value) { + super(); + this.value = value; + } + valueOf() { + return this.value; + } + toString() { + return this.value; + } + toJSON() { + return this.value; + } + toExtendedJSON() { + return { $symbol: this.value }; + } + static fromExtendedJSON(doc) { + return new BSONSymbol(doc.$symbol); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new BSONSymbol(${inspect(this.value, options)})`; + } +} + +const LongWithoutOverridesClass = Long; +class Timestamp extends LongWithoutOverridesClass { + get _bsontype() { + return 'Timestamp'; + } + constructor(low) { + if (low == null) { + super(0, 0, true); + } + else if (typeof low === 'bigint') { + super(low, true); + } + else if (Long.isLong(low)) { + super(low.low, low.high, true); + } + else if (typeof low === 'object' && 't' in low && 'i' in low) { + if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide t as a number'); + } + if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide i as a number'); + } + const t = Number(low.t); + const i = Number(low.i); + if (t < 0 || Number.isNaN(t)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive t'); + } + if (i < 0 || Number.isNaN(i)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive i'); + } + if (t > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max'); + } + if (i > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max'); + } + super(i, t, true); + } + else { + throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }'); + } + } + toJSON() { + return { + $timestamp: this.toString() + }; + } + static fromInt(value) { + return new Timestamp(Long.fromInt(value, true)); + } + static fromNumber(value) { + return new Timestamp(Long.fromNumber(value, true)); + } + static fromBits(lowBits, highBits) { + return new Timestamp({ i: lowBits, t: highBits }); + } + static fromString(str, optRadix) { + return new Timestamp(Long.fromString(str, true, optRadix)); + } + toExtendedJSON() { + return { $timestamp: { t: this.high >>> 0, i: this.low >>> 0 } }; + } + static fromExtendedJSON(doc) { + const i = Long.isLong(doc.$timestamp.i) + ? doc.$timestamp.i.getLowBitsUnsigned() + : doc.$timestamp.i; + const t = Long.isLong(doc.$timestamp.t) + ? doc.$timestamp.t.getLowBitsUnsigned() + : doc.$timestamp.t; + return new Timestamp({ t, i }); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const t = inspect(this.high >>> 0, options); + const i = inspect(this.low >>> 0, options); + return `new Timestamp({ t: ${t}, i: ${i} })`; + } +} +Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE; + +const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX); +const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN); +function internalDeserialize(buffer, options, isArray) { + options = options == null ? {} : options; + const index = options && options.index ? options.index : 0; + const size = NumberUtils.getInt32LE(buffer, index); + if (size < 5) { + throw new BSONError(`bson size must be >= 5, is ${size}`); + } + if (options.allowObjectSmallerThanBufferSize && buffer.length < size) { + throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`); + } + if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) { + throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`); + } + if (size + index > buffer.byteLength) { + throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`); + } + if (buffer[index + size - 1] !== 0) { + throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00"); + } + return deserializeObject(buffer, index, options, isArray); +} +const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/; +function deserializeObject(buffer, index, options, isArray = false) { + const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw']; + const raw = options['raw'] == null ? false : options['raw']; + const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false; + const promoteBuffers = options.promoteBuffers ?? false; + const promoteLongs = options.promoteLongs ?? true; + const promoteValues = options.promoteValues ?? true; + const useBigInt64 = options.useBigInt64 ?? false; + if (useBigInt64 && !promoteValues) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + if (useBigInt64 && !promoteLongs) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + const validation = options.validation == null ? { utf8: true } : options.validation; + let globalUTFValidation = true; + let validationSetting; + let utf8KeysSet; + const utf8ValidatedKeys = validation.utf8; + if (typeof utf8ValidatedKeys === 'boolean') { + validationSetting = utf8ValidatedKeys; + } + else { + globalUTFValidation = false; + const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) { + return utf8ValidatedKeys[key]; + }); + if (utf8ValidationValues.length === 0) { + throw new BSONError('UTF-8 validation setting cannot be empty'); + } + if (typeof utf8ValidationValues[0] !== 'boolean') { + throw new BSONError('Invalid UTF-8 validation option, must specify boolean values'); + } + validationSetting = utf8ValidationValues[0]; + if (!utf8ValidationValues.every(item => item === validationSetting)) { + throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false'); + } + } + if (!globalUTFValidation) { + utf8KeysSet = new Set(); + for (const key of Object.keys(utf8ValidatedKeys)) { + utf8KeysSet.add(key); + } + } + const startIndex = index; + if (buffer.length < 5) + throw new BSONError('corrupt bson message < 5 bytes long'); + const size = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (size < 5 || size > buffer.length) + throw new BSONError('corrupt bson message'); + const object = isArray ? [] : {}; + let arrayIndex = 0; + const done = false; + let isPossibleDBRef = isArray ? false : null; + while (!done) { + const elementType = buffer[index++]; + if (elementType === 0) + break; + let i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.byteLength) + throw new BSONError('Bad BSON Document: illegal CString'); + const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false); + let shouldValidateKey = true; + if (globalUTFValidation || utf8KeysSet?.has(name)) { + shouldValidateKey = validationSetting; + } + else { + shouldValidateKey = !validationSetting; + } + if (isPossibleDBRef !== false && name[0] === '$') { + isPossibleDBRef = allowedDBRefKeys.test(name); + } + let value; + index = i + 1; + if (elementType === BSON_DATA_STRING) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + } + else if (elementType === BSON_DATA_OID) { + const oid = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oid[i] = buffer[index + i]; + value = new ObjectId(oid); + index = index + 12; + } + else if (elementType === BSON_DATA_INT && promoteValues === false) { + value = new Int32(NumberUtils.getInt32LE(buffer, index)); + index += 4; + } + else if (elementType === BSON_DATA_INT) { + value = NumberUtils.getInt32LE(buffer, index); + index += 4; + } + else if (elementType === BSON_DATA_NUMBER) { + value = NumberUtils.getFloat64LE(buffer, index); + index += 8; + if (promoteValues === false) + value = new Double(value); + } + else if (elementType === BSON_DATA_DATE) { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + value = new Date(new Long(lowBits, highBits).toNumber()); + } + else if (elementType === BSON_DATA_BOOLEAN) { + if (buffer[index] !== 0 && buffer[index] !== 1) + throw new BSONError('illegal boolean type value'); + value = buffer[index++] === 1; + } + else if (elementType === BSON_DATA_OBJECT) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + if (objectSize <= 0 || objectSize > buffer.length - index) + throw new BSONError('bad embedded document length in bson'); + if (raw) { + value = buffer.slice(index, index + objectSize); + } + else { + let objectOptions = options; + if (!globalUTFValidation) { + objectOptions = { ...options, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, objectOptions, false); + } + index = index + objectSize; + } + else if (elementType === BSON_DATA_ARRAY) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + let arrayOptions = options; + const stopIndex = index + objectSize; + if (fieldsAsRaw && fieldsAsRaw[name]) { + arrayOptions = { ...options, raw: true }; + } + if (!globalUTFValidation) { + arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, arrayOptions, true); + index = index + objectSize; + if (buffer[index - 1] !== 0) + throw new BSONError('invalid array terminator byte'); + if (index !== stopIndex) + throw new BSONError('corrupted array bson'); + } + else if (elementType === BSON_DATA_UNDEFINED) { + value = undefined; + } + else if (elementType === BSON_DATA_NULL) { + value = null; + } + else if (elementType === BSON_DATA_LONG) { + if (useBigInt64) { + value = NumberUtils.getBigInt64LE(buffer, index); + index += 8; + } + else { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + const long = new Long(lowBits, highBits); + if (promoteLongs && promoteValues === true) { + value = + long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG) + ? long.toNumber() + : long; + } + else { + value = long; + } + } + } + else if (elementType === BSON_DATA_DECIMAL128) { + const bytes = ByteUtils.allocateUnsafe(16); + for (let i = 0; i < 16; i++) + bytes[i] = buffer[index + i]; + index = index + 16; + value = new Decimal128(bytes); + } + else if (elementType === BSON_DATA_BINARY) { + let binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + const totalBinarySize = binarySize; + const subType = buffer[index++]; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found'); + if (binarySize > buffer.byteLength) + throw new BSONError('Binary type size larger than document size'); + if (buffer['slice'] != null) { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.toLocalBufferType(buffer.slice(index, index + binarySize)); + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + else { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.allocateUnsafe(binarySize); + for (i = 0; i < binarySize; i++) { + value[i] = buffer[index + i]; + } + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + index = index + binarySize; + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + const optionsArray = new Array(regExpOptions.length); + for (i = 0; i < regExpOptions.length; i++) { + switch (regExpOptions[i]) { + case 'm': + optionsArray[i] = 'm'; + break; + case 's': + optionsArray[i] = 'g'; + break; + case 'i': + optionsArray[i] = 'i'; + break; + } + } + value = new RegExp(source, optionsArray.join('')); + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + value = new BSONRegExp(source, regExpOptions); + } + else if (elementType === BSON_DATA_SYMBOL) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = promoteValues ? symbol : new BSONSymbol(symbol); + index = index + stringSize; + } + else if (elementType === BSON_DATA_TIMESTAMP) { + value = new Timestamp({ + i: NumberUtils.getUint32LE(buffer, index), + t: NumberUtils.getUint32LE(buffer, index + 4) + }); + index += 8; + } + else if (elementType === BSON_DATA_MIN_KEY) { + value = new MinKey(); + } + else if (elementType === BSON_DATA_MAX_KEY) { + value = new MaxKey(); + } + else if (elementType === BSON_DATA_CODE) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = new Code(functionString); + index = index + stringSize; + } + else if (elementType === BSON_DATA_CODE_W_SCOPE) { + const totalSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (totalSize < 4 + 4 + 4 + 1) { + throw new BSONError('code_w_scope total size shorter minimum expected length'); + } + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + const scopeObject = deserializeObject(buffer, _index, options, false); + index = index + objectSize; + if (totalSize < 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too short, truncating scope'); + } + if (totalSize > 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too long, clips outer document'); + } + value = new Code(functionString, scopeObject); + } + else if (elementType === BSON_DATA_DBPOINTER) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) + throw new BSONError('bad string length in bson'); + const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const oidBuffer = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oidBuffer[i] = buffer[index + i]; + const oid = new ObjectId(oidBuffer); + index = index + 12; + value = new DBRef(namespace, oid); + } + else { + throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`); + } + if (name === '__proto__') { + Object.defineProperty(object, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + object[name] = value; + } + } + if (size !== index - startIndex) { + if (isArray) + throw new BSONError('corrupt array bson'); + throw new BSONError('corrupt object bson'); + } + if (!isPossibleDBRef) + return object; + if (isDBRefLike(object)) { + const copy = Object.assign({}, object); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(object.$ref, object.$id, object.$db, copy); + } + return object; +} + +const regexp = /\x00/; +const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']); +function serializeString(buffer, key, value, index) { + buffer[index++] = BSON_DATA_STRING; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes + 1; + buffer[index - 1] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4); + NumberUtils.setInt32LE(buffer, index, size + 1); + index = index + 4 + size; + buffer[index++] = 0; + return index; +} +function serializeNumber(buffer, key, value, index) { + const isNegativeZero = Object.is(value, -0); + const type = !isNegativeZero && + Number.isSafeInteger(value) && + value <= BSON_INT32_MAX && + value >= BSON_INT32_MIN + ? BSON_DATA_INT + : BSON_DATA_NUMBER; + buffer[index++] = type; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0x00; + if (type === BSON_DATA_INT) { + index += NumberUtils.setInt32LE(buffer, index, value); + } + else { + index += NumberUtils.setFloat64LE(buffer, index, value); + } + return index; +} +function serializeBigInt(buffer, key, value, index) { + buffer[index++] = BSON_DATA_LONG; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index += numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setBigInt64LE(buffer, index, value); + return index; +} +function serializeNull(buffer, key, _, index) { + buffer[index++] = BSON_DATA_NULL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeBoolean(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BOOLEAN; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + buffer[index++] = value ? 1 : 0; + return index; +} +function serializeDate(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DATE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const dateInMilis = Long.fromNumber(value.getTime()); + const lowBits = dateInMilis.getLowBits(); + const highBits = dateInMilis.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.source && value.source.match(regexp) != null) { + throw new BSONError('value ' + value.source + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index); + buffer[index++] = 0x00; + if (value.ignoreCase) + buffer[index++] = 0x69; + if (value.global) + buffer[index++] = 0x73; + if (value.multiline) + buffer[index++] = 0x6d; + buffer[index++] = 0x00; + return index; +} +function serializeBSONRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.pattern.match(regexp) != null) { + throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index); + buffer[index++] = 0x00; + const sortedOptions = value.options.split('').sort().join(''); + index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index); + buffer[index++] = 0x00; + return index; +} +function serializeMinMax(buffer, key, value, index) { + if (value === null) { + buffer[index++] = BSON_DATA_NULL; + } + else if (value._bsontype === 'MinKey') { + buffer[index++] = BSON_DATA_MIN_KEY; + } + else { + buffer[index++] = BSON_DATA_MAX_KEY; + } + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeObjectId(buffer, key, value, index) { + buffer[index++] = BSON_DATA_OID; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += value.serializeInto(buffer, index); + return index; +} +function serializeBuffer(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = value.length; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT; + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = value[i]; + } + else { + buffer.set(value, index); + } + index = index + size; + return index; +} +function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) { + if (path.has(value)) { + throw new BSONError('Cannot convert circular structure to BSON'); + } + path.add(value); + buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + path.delete(value); + return endIndex; +} +function serializeDecimal128(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DECIMAL128; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + for (let i = 0; i < 16; i++) + buffer[index + i] = value.bytes[i]; + return index + 16; +} +function serializeLong(buffer, key, value, index) { + buffer[index++] = + value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const lowBits = value.getLowBits(); + const highBits = value.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeInt32(buffer, key, value, index) { + value = value.valueOf(); + buffer[index++] = BSON_DATA_INT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setInt32LE(buffer, index, value); + return index; +} +function serializeDouble(buffer, key, value, index) { + buffer[index++] = BSON_DATA_NUMBER; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setFloat64LE(buffer, index, value.value); + return index; +} +function serializeFunction(buffer, key, value, index) { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) { + if (value.scope && typeof value.scope === 'object') { + buffer[index++] = BSON_DATA_CODE_W_SCOPE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + const functionString = value.code; + index = index + 4; + const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, codeSize); + buffer[index + 4 + codeSize - 1] = 0; + index = index + codeSize + 4; + const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + index = endIndex - 1; + const totalSize = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize); + buffer[index++] = 0; + } + else { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.code.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + } + return index; +} +function serializeBinary(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const data = value.buffer; + let size = value.position; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) + size = size + 4; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = value.sub_type; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + size = size - 4; + index += NumberUtils.setInt32LE(buffer, index, size); + } + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = data[i]; + } + else { + buffer.set(data, index); + } + index = index + value.position; + return index; +} +function serializeSymbol(buffer, key, value, index) { + buffer[index++] = BSON_DATA_SYMBOL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) { + buffer[index++] = BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + let output = { + $ref: value.collection || value.namespace, + $id: value.oid + }; + if (value.db != null) { + output.$db = value.db; + } + output = Object.assign(output, value.fields); + const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path); + const size = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, index, size); + return endIndex; +} +function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) { + if (path == null) { + if (object == null) { + buffer[0] = 0x05; + buffer[1] = 0x00; + buffer[2] = 0x00; + buffer[3] = 0x00; + buffer[4] = 0x00; + return 5; + } + if (Array.isArray(object)) { + throw new BSONError('serialize does not support an array as the root input'); + } + if (typeof object !== 'object') { + throw new BSONError('serialize does not support non-object as the root input'); + } + else if ('_bsontype' in object && typeof object._bsontype === 'string') { + throw new BSONError(`BSON types cannot be serialized as a document`); + } + else if (isDate(object) || + isRegExp(object) || + isUint8Array(object) || + isAnyArrayBuffer(object)) { + throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`); + } + path = new Set(); + } + path.add(object); + let index = startingIndex + 4; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + const key = `${i}`; + let value = object[i]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + if (typeof value === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (typeof value === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (typeof value === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (typeof value === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (typeof value === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else if (object instanceof Map || isMap(object)) { + const iterator = object.entries(); + let done = false; + while (!done) { + const entry = iterator.next(); + done = !!entry.done; + if (done) + continue; + const key = entry.value[0]; + let value = entry.value[1]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === null || (value === undefined && ignoreUndefined === false)) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + if (object != null && typeof object !== 'object') { + throw new BSONError('toBSON function did not return an object'); + } + } + for (const key of Object.keys(object)) { + let value = object[key]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + if (ignoreUndefined === false) + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + path.delete(object); + buffer[index++] = 0x00; + const size = index - startingIndex; + startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size); + return index; +} + +function isBSONType(value) { + return (value != null && + typeof value === 'object' && + '_bsontype' in value && + typeof value._bsontype === 'string'); +} +const keysToCodecs = { + $oid: ObjectId, + $binary: Binary, + $uuid: Binary, + $symbol: BSONSymbol, + $numberInt: Int32, + $numberDecimal: Decimal128, + $numberDouble: Double, + $numberLong: Long, + $minKey: MinKey, + $maxKey: MaxKey, + $regex: BSONRegExp, + $regularExpression: BSONRegExp, + $timestamp: Timestamp +}; +function deserializeValue(value, options = {}) { + if (typeof value === 'number') { + const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN; + const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN; + if (options.relaxed || options.legacy) { + return value; + } + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (in32BitRange) { + return new Int32(value); + } + if (in64BitRange) { + if (options.useBigInt64) { + return BigInt(value); + } + return Long.fromNumber(value); + } + } + return new Double(value); + } + if (value == null || typeof value !== 'object') + return value; + if (value.$undefined) + return null; + const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null); + for (let i = 0; i < keys.length; i++) { + const c = keysToCodecs[keys[i]]; + if (c) + return c.fromExtendedJSON(value, options); + } + if (value.$date != null) { + const d = value.$date; + const date = new Date(); + if (options.legacy) { + if (typeof d === 'number') + date.setTime(d); + else if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + else { + if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (Long.isLong(d)) + date.setTime(d.toNumber()); + else if (typeof d === 'number' && options.relaxed) + date.setTime(d); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + return date; + } + if (value.$code != null) { + const copy = Object.assign({}, value); + if (value.$scope) { + copy.$scope = deserializeValue(value.$scope); + } + return Code.fromExtendedJSON(value); + } + if (isDBRefLike(value) || value.$dbPointer) { + const v = value.$ref ? value : value.$dbPointer; + if (v instanceof DBRef) + return v; + const dollarKeys = Object.keys(v).filter(k => k.startsWith('$')); + let valid = true; + dollarKeys.forEach(k => { + if (['$ref', '$id', '$db'].indexOf(k) === -1) + valid = false; + }); + if (valid) + return DBRef.fromExtendedJSON(v); + } + return value; +} +function serializeArray(array, options) { + return array.map((v, index) => { + options.seenObjects.push({ propertyName: `index ${index}`, obj: null }); + try { + return serializeValue(v, options); + } + finally { + options.seenObjects.pop(); + } + }); +} +function getISOString(date) { + const isoStr = date.toISOString(); + return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z'; +} +function serializeValue(value, options) { + if (value instanceof Map || isMap(value)) { + const obj = Object.create(null); + for (const [k, v] of value) { + if (typeof k !== 'string') { + throw new BSONError('Can only serialize maps with string keys'); + } + obj[k] = v; + } + return serializeValue(obj, options); + } + if ((typeof value === 'object' || typeof value === 'function') && value !== null) { + const index = options.seenObjects.findIndex(entry => entry.obj === value); + if (index !== -1) { + const props = options.seenObjects.map(entry => entry.propertyName); + const leadingPart = props + .slice(0, index) + .map(prop => `${prop} -> `) + .join(''); + const alreadySeen = props[index]; + const circularPart = ' -> ' + + props + .slice(index + 1, props.length - 1) + .map(prop => `${prop} -> `) + .join(''); + const current = props[props.length - 1]; + const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2); + const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1); + throw new BSONError('Converting circular structure to EJSON:\n' + + ` ${leadingPart}${alreadySeen}${circularPart}${current}\n` + + ` ${leadingSpace}\\${dashes}/`); + } + options.seenObjects[options.seenObjects.length - 1].obj = value; + } + if (Array.isArray(value)) + return serializeArray(value, options); + if (value === undefined) + return null; + if (value instanceof Date || isDate(value)) { + const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000; + if (options.legacy) { + return options.relaxed && inRange + ? { $date: value.getTime() } + : { $date: getISOString(value) }; + } + return options.relaxed && inRange + ? { $date: getISOString(value) } + : { $date: { $numberLong: value.getTime().toString() } }; + } + if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) { + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return { $numberInt: value.toString() }; + } + if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) { + return { $numberLong: value.toString() }; + } + } + return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() }; + } + if (typeof value === 'bigint') { + if (!options.relaxed) { + return { $numberLong: BigInt.asIntN(64, value).toString() }; + } + return Number(BigInt.asIntN(64, value)); + } + if (value instanceof RegExp || isRegExp(value)) { + let flags = value.flags; + if (flags === undefined) { + const match = value.toString().match(/[gimuy]*$/); + if (match) { + flags = match[0]; + } + } + const rx = new BSONRegExp(value.source, flags); + return rx.toExtendedJSON(options); + } + if (value != null && typeof value === 'object') + return serializeDocument(value, options); + return value; +} +const BSON_TYPE_MAPPINGS = { + Binary: (o) => new Binary(o.value(), o.sub_type), + Code: (o) => new Code(o.code, o.scope), + DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), + Decimal128: (o) => new Decimal128(o.bytes), + Double: (o) => new Double(o.value), + Int32: (o) => new Int32(o.value), + Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_), + MaxKey: () => new MaxKey(), + MinKey: () => new MinKey(), + ObjectId: (o) => new ObjectId(o), + BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options), + BSONSymbol: (o) => new BSONSymbol(o.value), + Timestamp: (o) => Timestamp.fromBits(o.low, o.high) +}; +function serializeDocument(doc, options) { + if (doc == null || typeof doc !== 'object') + throw new BSONError('not an object instance'); + const bsontype = doc._bsontype; + if (typeof bsontype === 'undefined') { + const _doc = {}; + for (const name of Object.keys(doc)) { + options.seenObjects.push({ propertyName: name, obj: null }); + try { + const value = serializeValue(doc[name], options); + if (name === '__proto__') { + Object.defineProperty(_doc, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + _doc[name] = value; + } + } + finally { + options.seenObjects.pop(); + } + } + return _doc; + } + else if (doc != null && + typeof doc === 'object' && + typeof doc._bsontype === 'string' && + doc[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (isBSONType(doc)) { + let outDoc = doc; + if (typeof outDoc.toExtendedJSON !== 'function') { + const mapper = BSON_TYPE_MAPPINGS[doc._bsontype]; + if (!mapper) { + throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype); + } + outDoc = mapper(outDoc); + } + if (bsontype === 'Code' && outDoc.scope) { + outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options)); + } + else if (bsontype === 'DBRef' && outDoc.oid) { + outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options)); + } + return outDoc.toExtendedJSON(options); + } + else { + throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype); + } +} +function parse(text, options) { + const ejsonOptions = { + useBigInt64: options?.useBigInt64 ?? false, + relaxed: options?.relaxed ?? true, + legacy: options?.legacy ?? false + }; + return JSON.parse(text, (key, value) => { + if (key.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`); + } + return deserializeValue(value, ejsonOptions); + }); +} +function stringify(value, replacer, space, options) { + if (space != null && typeof space === 'object') { + options = space; + space = 0; + } + if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) { + options = replacer; + replacer = undefined; + space = 0; + } + const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, { + seenObjects: [{ propertyName: '(root)', obj: null }] + }); + const doc = serializeValue(value, serializeOptions); + return JSON.stringify(doc, replacer, space); +} +function EJSONserialize(value, options) { + options = options || {}; + return JSON.parse(stringify(value, options)); +} +function EJSONdeserialize(ejson, options) { + options = options || {}; + return parse(JSON.stringify(ejson), options); +} +const EJSON = Object.create(null); +EJSON.parse = parse; +EJSON.stringify = stringify; +EJSON.serialize = EJSONserialize; +EJSON.deserialize = EJSONdeserialize; +Object.freeze(EJSON); + +function getSize(source, offset) { + try { + return NumberUtils.getNonnegativeInt32LE(source, offset); + } + catch (cause) { + throw new BSONOffsetError('BSON size cannot be negative', offset, { cause }); + } +} +function findNull(bytes, offset) { + let nullTerminatorOffset = offset; + for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++) + ; + if (nullTerminatorOffset === bytes.length - 1) { + throw new BSONOffsetError('Null terminator not found', offset); + } + return nullTerminatorOffset; +} +function parseToElements(bytes, startOffset = 0) { + startOffset ??= 0; + if (bytes.length < 5) { + throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset); + } + const documentSize = getSize(bytes, startOffset); + if (documentSize > bytes.length - startOffset) { + throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset); + } + if (bytes[startOffset + documentSize - 1] !== 0x00) { + throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize); + } + const elements = []; + let offset = startOffset + 4; + while (offset <= documentSize + startOffset) { + const type = bytes[offset]; + offset += 1; + if (type === 0) { + if (offset - startOffset !== documentSize) { + throw new BSONOffsetError(`Invalid 0x00 type byte`, offset); + } + break; + } + const nameOffset = offset; + const nameLength = findNull(bytes, offset) - nameOffset; + offset += nameLength + 1; + let length; + if (type === 1 || + type === 18 || + type === 9 || + type === 17) { + length = 8; + } + else if (type === 16) { + length = 4; + } + else if (type === 7) { + length = 12; + } + else if (type === 19) { + length = 16; + } + else if (type === 8) { + length = 1; + } + else if (type === 10 || + type === 6 || + type === 127 || + type === 255) { + length = 0; + } + else if (type === 11) { + length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset; + } + else if (type === 3 || + type === 4 || + type === 15) { + length = getSize(bytes, offset); + } + else if (type === 2 || + type === 5 || + type === 12 || + type === 13 || + type === 14) { + length = getSize(bytes, offset) + 4; + if (type === 5) { + length += 1; + } + if (type === 12) { + length += 12; + } + } + else { + throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset); + } + if (length > documentSize) { + throw new BSONOffsetError('value reports length larger than document', offset); + } + elements.push([type, nameOffset, nameLength, offset, length]); + offset += length; + } + return elements; +} + +const onDemand = Object.create(null); +onDemand.parseToElements = parseToElements; +onDemand.ByteUtils = ByteUtils; +onDemand.NumberUtils = NumberUtils; +Object.freeze(onDemand); + +const MAXSIZE = 1024 * 1024 * 17; +let buffer = ByteUtils.allocate(MAXSIZE); +function setInternalBufferSize(size) { + if (buffer.length < size) { + buffer = ByteUtils.allocate(size); + } +} +function serialize(object, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE; + if (buffer.length < minInternalBufferSize) { + buffer = ByteUtils.allocate(minInternalBufferSize); + } + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex); + finishedBuffer.set(buffer.subarray(0, serializationIndex), 0); + return finishedBuffer; +} +function serializeWithBufferAndIndex(object, finalBuffer, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const startIndex = typeof options.index === 'number' ? options.index : 0; + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex); + return startIndex + serializationIndex - 1; +} +function deserialize(buffer, options = {}) { + return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options); +} +function calculateObjectSize(object, options = {}) { + options = options || {}; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined); +} +function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) { + const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options); + const bufferData = ByteUtils.toLocalBufferType(data); + let index = startIndex; + for (let i = 0; i < numberOfDocuments; i++) { + const size = NumberUtils.getInt32LE(bufferData, index); + internalOptions.index = index; + documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions); + index = index + size; + } + return index; +} + +var bson = /*#__PURE__*/Object.freeze({ +__proto__: null, +BSONError: BSONError, +BSONOffsetError: BSONOffsetError, +BSONRegExp: BSONRegExp, +BSONRuntimeError: BSONRuntimeError, +BSONSymbol: BSONSymbol, +BSONType: BSONType, +BSONValue: BSONValue, +BSONVersionError: BSONVersionError, +Binary: Binary, +Code: Code, +DBRef: DBRef, +Decimal128: Decimal128, +Double: Double, +EJSON: EJSON, +Int32: Int32, +Long: Long, +MaxKey: MaxKey, +MinKey: MinKey, +ObjectId: ObjectId, +Timestamp: Timestamp, +UUID: UUID, +calculateObjectSize: calculateObjectSize, +deserialize: deserialize, +deserializeStream: deserializeStream, +onDemand: onDemand, +serialize: serialize, +serializeWithBufferAndIndex: serializeWithBufferAndIndex, +setInternalBufferSize: setInternalBufferSize +}); + +exports.BSON = bson; +exports.BSONError = BSONError; +exports.BSONOffsetError = BSONOffsetError; +exports.BSONRegExp = BSONRegExp; +exports.BSONRuntimeError = BSONRuntimeError; +exports.BSONSymbol = BSONSymbol; +exports.BSONType = BSONType; +exports.BSONValue = BSONValue; +exports.BSONVersionError = BSONVersionError; +exports.Binary = Binary; +exports.Code = Code; +exports.DBRef = DBRef; +exports.Decimal128 = Decimal128; +exports.Double = Double; +exports.EJSON = EJSON; +exports.Int32 = Int32; +exports.Long = Long; +exports.MaxKey = MaxKey; +exports.MinKey = MinKey; +exports.ObjectId = ObjectId; +exports.Timestamp = Timestamp; +exports.UUID = UUID; +exports.calculateObjectSize = calculateObjectSize; +exports.deserialize = deserialize; +exports.deserializeStream = deserializeStream; +exports.onDemand = onDemand; +exports.serialize = serialize; +exports.serializeWithBufferAndIndex = serializeWithBufferAndIndex; +exports.setInternalBufferSize = setInternalBufferSize; + +return exports; + +})({}); +//# sourceMappingURL=bson.bundle.js.map diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.bundle.js.map b/week-3/04-course-app-hard/node_modules/bson/lib/bson.bundle.js.map new file mode 100644 index 000000000..d04c16961 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.bundle.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.cjs b/week-3/04-course-app-hard/node_modules/bson/lib/bson.cjs new file mode 100644 index 000000000..51988db3b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.cjs @@ -0,0 +1,4417 @@ +'use strict'; + +function isAnyArrayBuffer(value) { + return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes(Object.prototype.toString.call(value)); +} +function isUint8Array(value) { + return Object.prototype.toString.call(value) === '[object Uint8Array]'; +} +function isRegExp(d) { + return Object.prototype.toString.call(d) === '[object RegExp]'; +} +function isMap(d) { + return Object.prototype.toString.call(d) === '[object Map]'; +} +function isDate(d) { + return Object.prototype.toString.call(d) === '[object Date]'; +} +function defaultInspect(x, _options) { + return JSON.stringify(x, (k, v) => { + if (typeof v === 'bigint') { + return { $numberLong: `${v}` }; + } + else if (isMap(v)) { + return Object.fromEntries(v); + } + return v; + }); +} +function getStylizeFunction(options) { + const stylizeExists = options != null && + typeof options === 'object' && + 'stylize' in options && + typeof options.stylize === 'function'; + if (stylizeExists) { + return options.stylize; + } +} + +const BSON_MAJOR_VERSION = 6; +const BSON_INT32_MAX = 0x7fffffff; +const BSON_INT32_MIN = -0x80000000; +const BSON_INT64_MAX = Math.pow(2, 63) - 1; +const BSON_INT64_MIN = -Math.pow(2, 63); +const JS_INT_MAX = Math.pow(2, 53); +const JS_INT_MIN = -Math.pow(2, 53); +const BSON_DATA_NUMBER = 1; +const BSON_DATA_STRING = 2; +const BSON_DATA_OBJECT = 3; +const BSON_DATA_ARRAY = 4; +const BSON_DATA_BINARY = 5; +const BSON_DATA_UNDEFINED = 6; +const BSON_DATA_OID = 7; +const BSON_DATA_BOOLEAN = 8; +const BSON_DATA_DATE = 9; +const BSON_DATA_NULL = 10; +const BSON_DATA_REGEXP = 11; +const BSON_DATA_DBPOINTER = 12; +const BSON_DATA_CODE = 13; +const BSON_DATA_SYMBOL = 14; +const BSON_DATA_CODE_W_SCOPE = 15; +const BSON_DATA_INT = 16; +const BSON_DATA_TIMESTAMP = 17; +const BSON_DATA_LONG = 18; +const BSON_DATA_DECIMAL128 = 19; +const BSON_DATA_MIN_KEY = 0xff; +const BSON_DATA_MAX_KEY = 0x7f; +const BSON_BINARY_SUBTYPE_DEFAULT = 0; +const BSON_BINARY_SUBTYPE_UUID_NEW = 4; +const BSONType = Object.freeze({ + double: 1, + string: 2, + object: 3, + array: 4, + binData: 5, + undefined: 6, + objectId: 7, + bool: 8, + date: 9, + null: 10, + regex: 11, + dbPointer: 12, + javascript: 13, + symbol: 14, + javascriptWithScope: 15, + int: 16, + timestamp: 17, + long: 18, + decimal: 19, + minKey: -1, + maxKey: 127 +}); + +class BSONError extends Error { + get bsonError() { + return true; + } + get name() { + return 'BSONError'; + } + constructor(message, options) { + super(message, options); + } + static isBSONError(value) { + return (value != null && + typeof value === 'object' && + 'bsonError' in value && + value.bsonError === true && + 'name' in value && + 'message' in value && + 'stack' in value); + } +} +class BSONVersionError extends BSONError { + get name() { + return 'BSONVersionError'; + } + constructor() { + super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`); + } +} +class BSONRuntimeError extends BSONError { + get name() { + return 'BSONRuntimeError'; + } + constructor(message) { + super(message); + } +} +class BSONOffsetError extends BSONError { + get name() { + return 'BSONOffsetError'; + } + constructor(message, offset, options) { + super(`${message}. offset: ${offset}`, options); + this.offset = offset; + } +} + +let TextDecoderFatal; +let TextDecoderNonFatal; +function parseUtf8(buffer, start, end, fatal) { + if (fatal) { + TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true }); + try { + return TextDecoderFatal.decode(buffer.subarray(start, end)); + } + catch (cause) { + throw new BSONError('Invalid UTF-8 string in BSON document', { cause }); + } + } + TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false }); + return TextDecoderNonFatal.decode(buffer.subarray(start, end)); +} + +function tryReadBasicLatin(uint8array, start, end) { + if (uint8array.length === 0) { + return ''; + } + const stringByteLength = end - start; + if (stringByteLength === 0) { + return ''; + } + if (stringByteLength > 20) { + return null; + } + if (stringByteLength === 1 && uint8array[start] < 128) { + return String.fromCharCode(uint8array[start]); + } + if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) { + return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]); + } + if (stringByteLength === 3 && + uint8array[start] < 128 && + uint8array[start + 1] < 128 && + uint8array[start + 2] < 128) { + return (String.fromCharCode(uint8array[start]) + + String.fromCharCode(uint8array[start + 1]) + + String.fromCharCode(uint8array[start + 2])); + } + const latinBytes = []; + for (let i = start; i < end; i++) { + const byte = uint8array[i]; + if (byte > 127) { + return null; + } + latinBytes.push(byte); + } + return String.fromCharCode(...latinBytes); +} +function tryWriteBasicLatin(destination, source, offset) { + if (source.length === 0) + return 0; + if (source.length > 25) + return null; + if (destination.length - offset < source.length) + return null; + for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) { + const char = source.charCodeAt(charOffset); + if (char > 127) + return null; + destination[destinationOffset] = char; + } + return source.length; +} + +function nodejsMathRandomBytes(byteLength) { + return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const nodejsRandomBytes = (() => { + try { + return require('crypto').randomBytes; + } + catch { + return nodejsMathRandomBytes; + } +})(); +const nodeJsByteUtils = { + toLocalBufferType(potentialBuffer) { + if (Buffer.isBuffer(potentialBuffer)) { + return potentialBuffer; + } + if (ArrayBuffer.isView(potentialBuffer)) { + return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength); + } + const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer); + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return Buffer.from(potentialBuffer); + } + throw new BSONError(`Cannot create Buffer from ${String(potentialBuffer)}`); + }, + allocate(size) { + return Buffer.alloc(size); + }, + allocateUnsafe(size) { + return Buffer.allocUnsafe(size); + }, + equals(a, b) { + return nodeJsByteUtils.toLocalBufferType(a).equals(b); + }, + fromNumberArray(array) { + return Buffer.from(array); + }, + fromBase64(base64) { + return Buffer.from(base64, 'base64'); + }, + toBase64(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64'); + }, + fromISO88591(codePoints) { + return Buffer.from(codePoints, 'binary'); + }, + toISO88591(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary'); + }, + fromHex(hex) { + return Buffer.from(hex, 'hex'); + }, + toHex(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex'); + }, + toUTF8(buffer, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end); + if (fatal) { + for (let i = 0; i < string.length; i++) { + if (string.charCodeAt(i) === 0xfffd) { + parseUtf8(buffer, start, end, true); + break; + } + } + } + return string; + }, + utf8ByteLength(input) { + return Buffer.byteLength(input, 'utf8'); + }, + encodeUTF8Into(buffer, source, byteOffset) { + const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset); + if (latinBytesWritten != null) { + return latinBytesWritten; + } + return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8'); + }, + randomBytes: nodejsRandomBytes +}; + +function isReactNative() { + const { navigator } = globalThis; + return typeof navigator === 'object' && navigator.product === 'ReactNative'; +} +function webMathRandomBytes(byteLength) { + if (byteLength < 0) { + throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`); + } + return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const webRandomBytes = (() => { + const { crypto } = globalThis; + if (crypto != null && typeof crypto.getRandomValues === 'function') { + return (byteLength) => { + return crypto.getRandomValues(webByteUtils.allocate(byteLength)); + }; + } + else { + if (isReactNative()) { + const { console } = globalThis; + console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'); + } + return webMathRandomBytes; + } +})(); +const HEX_DIGIT = /(\d|[a-f])/i; +const webByteUtils = { + toLocalBufferType(potentialUint8array) { + const stringTag = potentialUint8array?.[Symbol.toStringTag] ?? + Object.prototype.toString.call(potentialUint8array); + if (stringTag === 'Uint8Array') { + return potentialUint8array; + } + if (ArrayBuffer.isView(potentialUint8array)) { + return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength)); + } + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return new Uint8Array(potentialUint8array); + } + throw new BSONError(`Cannot make a Uint8Array from ${String(potentialUint8array)}`); + }, + allocate(size) { + if (typeof size !== 'number') { + throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`); + } + return new Uint8Array(size); + }, + allocateUnsafe(size) { + return webByteUtils.allocate(size); + }, + equals(a, b) { + if (a.byteLength !== b.byteLength) { + return false; + } + for (let i = 0; i < a.byteLength; i++) { + if (a[i] !== b[i]) { + return false; + } + } + return true; + }, + fromNumberArray(array) { + return Uint8Array.from(array); + }, + fromBase64(base64) { + return Uint8Array.from(atob(base64), c => c.charCodeAt(0)); + }, + toBase64(uint8array) { + return btoa(webByteUtils.toISO88591(uint8array)); + }, + fromISO88591(codePoints) { + return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff); + }, + toISO88591(uint8array) { + return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join(''); + }, + fromHex(hex) { + const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1); + const buffer = []; + for (let i = 0; i < evenLengthHex.length; i += 2) { + const firstDigit = evenLengthHex[i]; + const secondDigit = evenLengthHex[i + 1]; + if (!HEX_DIGIT.test(firstDigit)) { + break; + } + if (!HEX_DIGIT.test(secondDigit)) { + break; + } + const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16); + buffer.push(hexDigit); + } + return Uint8Array.from(buffer); + }, + toHex(uint8array) { + return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join(''); + }, + toUTF8(uint8array, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + return parseUtf8(uint8array, start, end, fatal); + }, + utf8ByteLength(input) { + return new TextEncoder().encode(input).byteLength; + }, + encodeUTF8Into(uint8array, source, byteOffset) { + const bytes = new TextEncoder().encode(source); + uint8array.set(bytes, byteOffset); + return bytes.byteLength; + }, + randomBytes: webRandomBytes +}; + +const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true; +const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils; + +class BSONValue { + get [Symbol.for('@@mdb.bson.version')]() { + return BSON_MAJOR_VERSION; + } + [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) { + return this.inspect(depth, options, inspect); + } +} + +class Binary extends BSONValue { + get _bsontype() { + return 'Binary'; + } + constructor(buffer, subType) { + super(); + if (!(buffer == null) && + typeof buffer === 'string' && + !ArrayBuffer.isView(buffer) && + !isAnyArrayBuffer(buffer) && + !Array.isArray(buffer)) { + throw new BSONError('Binary can only be constructed from Uint8Array or number[]'); + } + this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT; + if (buffer == null) { + this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE); + this.position = 0; + } + else { + this.buffer = Array.isArray(buffer) + ? ByteUtils.fromNumberArray(buffer) + : ByteUtils.toLocalBufferType(buffer); + this.position = this.buffer.byteLength; + } + } + put(byteValue) { + if (typeof byteValue === 'string' && byteValue.length !== 1) { + throw new BSONError('only accepts single character String'); + } + else if (typeof byteValue !== 'number' && byteValue.length !== 1) + throw new BSONError('only accepts single character Uint8Array or Array'); + let decodedByte; + if (typeof byteValue === 'string') { + decodedByte = byteValue.charCodeAt(0); + } + else if (typeof byteValue === 'number') { + decodedByte = byteValue; + } + else { + decodedByte = byteValue[0]; + } + if (decodedByte < 0 || decodedByte > 255) { + throw new BSONError('only accepts number in a valid unsigned byte range 0-255'); + } + if (this.buffer.byteLength > this.position) { + this.buffer[this.position++] = decodedByte; + } + else { + const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + this.buffer[this.position++] = decodedByte; + } + } + write(sequence, offset) { + offset = typeof offset === 'number' ? offset : this.position; + if (this.buffer.byteLength < offset + sequence.length) { + const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + } + if (ArrayBuffer.isView(sequence)) { + this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset); + this.position = + offset + sequence.byteLength > this.position ? offset + sequence.length : this.position; + } + else if (typeof sequence === 'string') { + throw new BSONError('input cannot be string'); + } + } + read(position, length) { + length = length && length > 0 ? length : this.position; + return this.buffer.slice(position, position + length); + } + value() { + return this.buffer.length === this.position + ? this.buffer + : this.buffer.subarray(0, this.position); + } + length() { + return this.position; + } + toJSON() { + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.buffer.subarray(0, this.position)); + if (encoding === 'base64') + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + if (encoding === 'utf8' || encoding === 'utf-8') + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + } + toExtendedJSON(options) { + options = options || {}; + const base64String = ByteUtils.toBase64(this.buffer); + const subType = Number(this.sub_type).toString(16); + if (options.legacy) { + return { + $binary: base64String, + $type: subType.length === 1 ? '0' + subType : subType + }; + } + return { + $binary: { + base64: base64String, + subType: subType.length === 1 ? '0' + subType : subType + } + }; + } + toUUID() { + if (this.sub_type === Binary.SUBTYPE_UUID) { + return new UUID(this.buffer.slice(0, this.position)); + } + throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`); + } + static createFromHexString(hex, subType) { + return new Binary(ByteUtils.fromHex(hex), subType); + } + static createFromBase64(base64, subType) { + return new Binary(ByteUtils.fromBase64(base64), subType); + } + static fromExtendedJSON(doc, options) { + options = options || {}; + let data; + let type; + if ('$binary' in doc) { + if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) { + type = doc.$type ? parseInt(doc.$type, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary); + } + else { + if (typeof doc.$binary !== 'string') { + type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary.base64); + } + } + } + else if ('$uuid' in doc) { + type = 4; + data = UUID.bytesFromString(doc.$uuid); + } + if (!data) { + throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`); + } + return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + const base64Arg = inspect(base64, options); + const subTypeArg = inspect(this.sub_type, options); + return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`; + } +} +Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0; +Binary.BUFFER_SIZE = 256; +Binary.SUBTYPE_DEFAULT = 0; +Binary.SUBTYPE_FUNCTION = 1; +Binary.SUBTYPE_BYTE_ARRAY = 2; +Binary.SUBTYPE_UUID_OLD = 3; +Binary.SUBTYPE_UUID = 4; +Binary.SUBTYPE_MD5 = 5; +Binary.SUBTYPE_ENCRYPTED = 6; +Binary.SUBTYPE_COLUMN = 7; +Binary.SUBTYPE_SENSITIVE = 8; +Binary.SUBTYPE_USER_DEFINED = 128; +const UUID_BYTE_LENGTH = 16; +const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i; +const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i; +class UUID extends Binary { + constructor(input) { + let bytes; + if (input == null) { + bytes = UUID.generate(); + } + else if (input instanceof UUID) { + bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer)); + } + else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) { + bytes = ByteUtils.toLocalBufferType(input); + } + else if (typeof input === 'string') { + bytes = UUID.bytesFromString(input); + } + else { + throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'); + } + super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW); + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + } + toHexString(includeDashes = true) { + if (includeDashes) { + return [ + ByteUtils.toHex(this.buffer.subarray(0, 4)), + ByteUtils.toHex(this.buffer.subarray(4, 6)), + ByteUtils.toHex(this.buffer.subarray(6, 8)), + ByteUtils.toHex(this.buffer.subarray(8, 10)), + ByteUtils.toHex(this.buffer.subarray(10, 16)) + ].join('-'); + } + return ByteUtils.toHex(this.buffer); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.id); + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + equals(otherId) { + if (!otherId) { + return false; + } + if (otherId instanceof UUID) { + return ByteUtils.equals(otherId.id, this.id); + } + try { + return ByteUtils.equals(new UUID(otherId).id, this.id); + } + catch { + return false; + } + } + toBinary() { + return new Binary(this.id, Binary.SUBTYPE_UUID); + } + static generate() { + const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH); + bytes[6] = (bytes[6] & 0x0f) | 0x40; + bytes[8] = (bytes[8] & 0x3f) | 0x80; + return bytes; + } + static isValid(input) { + if (!input) { + return false; + } + if (typeof input === 'string') { + return UUID.isValidUUIDString(input); + } + if (isUint8Array(input)) { + return input.byteLength === UUID_BYTE_LENGTH; + } + return (input._bsontype === 'Binary' && + input.sub_type === this.SUBTYPE_UUID && + input.buffer.byteLength === 16); + } + static createFromHexString(hexString) { + const buffer = UUID.bytesFromString(hexString); + return new UUID(buffer); + } + static createFromBase64(base64) { + return new UUID(ByteUtils.fromBase64(base64)); + } + static bytesFromString(representation) { + if (!UUID.isValidUUIDString(representation)) { + throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation'); + } + return ByteUtils.fromHex(representation.replace(/-/g, '')); + } + static isValidUUIDString(representation) { + return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new UUID(${inspect(this.toHexString(), options)})`; + } +} + +class Code extends BSONValue { + get _bsontype() { + return 'Code'; + } + constructor(code, scope) { + super(); + this.code = code.toString(); + this.scope = scope ?? null; + } + toJSON() { + if (this.scope != null) { + return { code: this.code, scope: this.scope }; + } + return { code: this.code }; + } + toExtendedJSON() { + if (this.scope) { + return { $code: this.code, $scope: this.scope }; + } + return { $code: this.code }; + } + static fromExtendedJSON(doc) { + return new Code(doc.$code, doc.$scope); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + let parametersString = inspect(this.code, options); + const multiLineFn = parametersString.includes('\n'); + if (this.scope != null) { + parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`; + } + const endingNewline = multiLineFn && this.scope === null; + return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`; + } +} + +function isDBRefLike(value) { + return (value != null && + typeof value === 'object' && + '$id' in value && + value.$id != null && + '$ref' in value && + typeof value.$ref === 'string' && + (!('$db' in value) || ('$db' in value && typeof value.$db === 'string'))); +} +class DBRef extends BSONValue { + get _bsontype() { + return 'DBRef'; + } + constructor(collection, oid, db, fields) { + super(); + const parts = collection.split('.'); + if (parts.length === 2) { + db = parts.shift(); + collection = parts.shift(); + } + this.collection = collection; + this.oid = oid; + this.db = db; + this.fields = fields || {}; + } + get namespace() { + return this.collection; + } + set namespace(value) { + this.collection = value; + } + toJSON() { + const o = Object.assign({ + $ref: this.collection, + $id: this.oid + }, this.fields); + if (this.db != null) + o.$db = this.db; + return o; + } + toExtendedJSON(options) { + options = options || {}; + let o = { + $ref: this.collection, + $id: this.oid + }; + if (options.legacy) { + return o; + } + if (this.db) + o.$db = this.db; + o = Object.assign(o, this.fields); + return o; + } + static fromExtendedJSON(doc) { + const copy = Object.assign({}, doc); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(doc.$ref, doc.$id, doc.$db, copy); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const args = [ + inspect(this.namespace, options), + inspect(this.oid, options), + ...(this.db ? [inspect(this.db, options)] : []), + ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : []) + ]; + args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1]; + return `new DBRef(${args.join(', ')})`; + } +} + +function removeLeadingZerosAndExplicitPlus(str) { + if (str === '') { + return str; + } + let startIndex = 0; + const isNegative = str[startIndex] === '-'; + const isExplicitlyPositive = str[startIndex] === '+'; + if (isExplicitlyPositive || isNegative) { + startIndex += 1; + } + let foundInsignificantZero = false; + for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) { + foundInsignificantZero = true; + } + if (!foundInsignificantZero) { + return isExplicitlyPositive ? str.slice(1) : str; + } + return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`; +} +function validateStringCharacters(str, radix) { + radix = radix ?? 10; + const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix); + const regex = new RegExp(`[^-+${validCharacters}]`, 'i'); + return regex.test(str) ? false : str; +} + +let wasm = undefined; +try { + wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports; +} +catch { +} +const TWO_PWR_16_DBL = 1 << 16; +const TWO_PWR_24_DBL = 1 << 24; +const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL; +const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL; +const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2; +const INT_CACHE = {}; +const UINT_CACHE = {}; +const MAX_INT64_STRING_LENGTH = 20; +const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/; +class Long extends BSONValue { + get _bsontype() { + return 'Long'; + } + get __isLong__() { + return true; + } + constructor(lowOrValue = 0, highOrUnsigned, unsigned) { + super(); + const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned); + const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0; + const res = typeof lowOrValue === 'string' + ? Long.fromString(lowOrValue, unsignedBool) + : typeof lowOrValue === 'bigint' + ? Long.fromBigInt(lowOrValue, unsignedBool) + : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool }; + this.low = res.low; + this.high = res.high; + this.unsigned = res.unsigned; + } + static fromBits(lowBits, highBits, unsigned) { + return new Long(lowBits, highBits, unsigned); + } + static fromInt(value, unsigned) { + let obj, cachedObj, cache; + if (unsigned) { + value >>>= 0; + if ((cache = 0 <= value && value < 256)) { + cachedObj = UINT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true); + if (cache) + UINT_CACHE[value] = obj; + return obj; + } + else { + value |= 0; + if ((cache = -128 <= value && value < 128)) { + cachedObj = INT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, value < 0 ? -1 : 0, false); + if (cache) + INT_CACHE[value] = obj; + return obj; + } + } + static fromNumber(value, unsigned) { + if (isNaN(value)) + return unsigned ? Long.UZERO : Long.ZERO; + if (unsigned) { + if (value < 0) + return Long.UZERO; + if (value >= TWO_PWR_64_DBL) + return Long.MAX_UNSIGNED_VALUE; + } + else { + if (value <= -TWO_PWR_63_DBL) + return Long.MIN_VALUE; + if (value + 1 >= TWO_PWR_63_DBL) + return Long.MAX_VALUE; + } + if (value < 0) + return Long.fromNumber(-value, unsigned).neg(); + return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned); + } + static fromBigInt(value, unsigned) { + const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff); + const FROM_BIGINT_BIT_SHIFT = BigInt(32); + return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned); + } + static _fromString(str, unsigned, radix) { + if (str.length === 0) + throw new BSONError('empty string'); + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + let p; + if ((p = str.indexOf('-')) > 0) + throw new BSONError('interior hyphen'); + else if (p === 0) { + return Long._fromString(str.substring(1), unsigned, radix).neg(); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 8)); + let result = Long.ZERO; + for (let i = 0; i < str.length; i += 8) { + const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix); + if (size < 8) { + const power = Long.fromNumber(Math.pow(radix, size)); + result = result.mul(power).add(Long.fromNumber(value)); + } + else { + result = result.mul(radixToPower); + result = result.add(Long.fromNumber(value)); + } + } + result.unsigned = unsigned; + return result; + } + static fromStringStrict(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str.trim() !== str) { + throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`); + } + if (!validateStringCharacters(str, radix)) { + throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`); + } + const cleanedStr = removeLeadingZerosAndExplicitPlus(str); + const result = Long._fromString(cleanedStr, unsigned, radix); + if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) { + throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`); + } + return result; + } + static fromString(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str === 'NaN' && radix < 24) { + return Long.ZERO; + } + else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) { + return Long.ZERO; + } + return Long._fromString(str, unsigned, radix); + } + static fromBytes(bytes, unsigned, le) { + return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned); + } + static fromBytesLE(bytes, unsigned) { + return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned); + } + static fromBytesBE(bytes, unsigned) { + return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned); + } + static isLong(value) { + return (value != null && + typeof value === 'object' && + '__isLong__' in value && + value.__isLong__ === true); + } + static fromValue(val, unsigned) { + if (typeof val === 'number') + return Long.fromNumber(val, unsigned); + if (typeof val === 'string') + return Long.fromString(val, unsigned); + return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned); + } + add(addend) { + if (!Long.isLong(addend)) + addend = Long.fromValue(addend); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = addend.high >>> 16; + const b32 = addend.high & 0xffff; + const b16 = addend.low >>> 16; + const b00 = addend.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 + b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 + b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 + b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 + b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + and(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned); + } + compare(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.eq(other)) + return 0; + const thisNeg = this.isNegative(), otherNeg = other.isNegative(); + if (thisNeg && !otherNeg) + return -1; + if (!thisNeg && otherNeg) + return 1; + if (!this.unsigned) + return this.sub(other).isNegative() ? -1 : 1; + return other.high >>> 0 > this.high >>> 0 || + (other.high === this.high && other.low >>> 0 > this.low >>> 0) + ? -1 + : 1; + } + comp(other) { + return this.compare(other); + } + divide(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (divisor.isZero()) + throw new BSONError('division by zero'); + if (wasm) { + if (!this.unsigned && + this.high === -0x80000000 && + divisor.low === -1 && + divisor.high === -1) { + return this; + } + const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (this.isZero()) + return this.unsigned ? Long.UZERO : Long.ZERO; + let approx, rem, res; + if (!this.unsigned) { + if (this.eq(Long.MIN_VALUE)) { + if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) + return Long.MIN_VALUE; + else if (divisor.eq(Long.MIN_VALUE)) + return Long.ONE; + else { + const halfThis = this.shr(1); + approx = halfThis.div(divisor).shl(1); + if (approx.eq(Long.ZERO)) { + return divisor.isNegative() ? Long.ONE : Long.NEG_ONE; + } + else { + rem = this.sub(divisor.mul(approx)); + res = approx.add(rem.div(divisor)); + return res; + } + } + } + else if (divisor.eq(Long.MIN_VALUE)) + return this.unsigned ? Long.UZERO : Long.ZERO; + if (this.isNegative()) { + if (divisor.isNegative()) + return this.neg().div(divisor.neg()); + return this.neg().div(divisor).neg(); + } + else if (divisor.isNegative()) + return this.div(divisor.neg()).neg(); + res = Long.ZERO; + } + else { + if (!divisor.unsigned) + divisor = divisor.toUnsigned(); + if (divisor.gt(this)) + return Long.UZERO; + if (divisor.gt(this.shru(1))) + return Long.UONE; + res = Long.UZERO; + } + rem = this; + while (rem.gte(divisor)) { + approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber())); + const log2 = Math.ceil(Math.log(approx) / Math.LN2); + const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48); + let approxRes = Long.fromNumber(approx); + let approxRem = approxRes.mul(divisor); + while (approxRem.isNegative() || approxRem.gt(rem)) { + approx -= delta; + approxRes = Long.fromNumber(approx, this.unsigned); + approxRem = approxRes.mul(divisor); + } + if (approxRes.isZero()) + approxRes = Long.ONE; + res = res.add(approxRes); + rem = rem.sub(approxRem); + } + return res; + } + div(divisor) { + return this.divide(divisor); + } + equals(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1) + return false; + return this.high === other.high && this.low === other.low; + } + eq(other) { + return this.equals(other); + } + getHighBits() { + return this.high; + } + getHighBitsUnsigned() { + return this.high >>> 0; + } + getLowBits() { + return this.low; + } + getLowBitsUnsigned() { + return this.low >>> 0; + } + getNumBitsAbs() { + if (this.isNegative()) { + return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs(); + } + const val = this.high !== 0 ? this.high : this.low; + let bit; + for (bit = 31; bit > 0; bit--) + if ((val & (1 << bit)) !== 0) + break; + return this.high !== 0 ? bit + 33 : bit + 1; + } + greaterThan(other) { + return this.comp(other) > 0; + } + gt(other) { + return this.greaterThan(other); + } + greaterThanOrEqual(other) { + return this.comp(other) >= 0; + } + gte(other) { + return this.greaterThanOrEqual(other); + } + ge(other) { + return this.greaterThanOrEqual(other); + } + isEven() { + return (this.low & 1) === 0; + } + isNegative() { + return !this.unsigned && this.high < 0; + } + isOdd() { + return (this.low & 1) === 1; + } + isPositive() { + return this.unsigned || this.high >= 0; + } + isZero() { + return this.high === 0 && this.low === 0; + } + lessThan(other) { + return this.comp(other) < 0; + } + lt(other) { + return this.lessThan(other); + } + lessThanOrEqual(other) { + return this.comp(other) <= 0; + } + lte(other) { + return this.lessThanOrEqual(other); + } + modulo(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (wasm) { + const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + return this.sub(this.div(divisor).mul(divisor)); + } + mod(divisor) { + return this.modulo(divisor); + } + rem(divisor) { + return this.modulo(divisor); + } + multiply(multiplier) { + if (this.isZero()) + return Long.ZERO; + if (!Long.isLong(multiplier)) + multiplier = Long.fromValue(multiplier); + if (wasm) { + const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (multiplier.isZero()) + return Long.ZERO; + if (this.eq(Long.MIN_VALUE)) + return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (multiplier.eq(Long.MIN_VALUE)) + return this.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (this.isNegative()) { + if (multiplier.isNegative()) + return this.neg().mul(multiplier.neg()); + else + return this.neg().mul(multiplier).neg(); + } + else if (multiplier.isNegative()) + return this.mul(multiplier.neg()).neg(); + if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24)) + return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = multiplier.high >>> 16; + const b32 = multiplier.high & 0xffff; + const b16 = multiplier.low >>> 16; + const b00 = multiplier.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 * b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 * b00; + c32 += c16 >>> 16; + c16 &= 0xffff; + c16 += a00 * b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 * b00; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a16 * b16; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a00 * b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + mul(multiplier) { + return this.multiply(multiplier); + } + negate() { + if (!this.unsigned && this.eq(Long.MIN_VALUE)) + return Long.MIN_VALUE; + return this.not().add(Long.ONE); + } + neg() { + return this.negate(); + } + not() { + return Long.fromBits(~this.low, ~this.high, this.unsigned); + } + notEquals(other) { + return !this.equals(other); + } + neq(other) { + return this.notEquals(other); + } + ne(other) { + return this.notEquals(other); + } + or(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned); + } + shiftLeft(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned); + else + return Long.fromBits(0, this.low << (numBits - 32), this.unsigned); + } + shl(numBits) { + return this.shiftLeft(numBits); + } + shiftRight(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned); + else + return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned); + } + shr(numBits) { + return this.shiftRight(numBits); + } + shiftRightUnsigned(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + numBits &= 63; + if (numBits === 0) + return this; + else { + const high = this.high; + if (numBits < 32) { + const low = this.low; + return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned); + } + else if (numBits === 32) + return Long.fromBits(high, 0, this.unsigned); + else + return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned); + } + } + shr_u(numBits) { + return this.shiftRightUnsigned(numBits); + } + shru(numBits) { + return this.shiftRightUnsigned(numBits); + } + subtract(subtrahend) { + if (!Long.isLong(subtrahend)) + subtrahend = Long.fromValue(subtrahend); + return this.add(subtrahend.neg()); + } + sub(subtrahend) { + return this.subtract(subtrahend); + } + toInt() { + return this.unsigned ? this.low >>> 0 : this.low; + } + toNumber() { + if (this.unsigned) + return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0); + return this.high * TWO_PWR_32_DBL + (this.low >>> 0); + } + toBigInt() { + return BigInt(this.toString()); + } + toBytes(le) { + return le ? this.toBytesLE() : this.toBytesBE(); + } + toBytesLE() { + const hi = this.high, lo = this.low; + return [ + lo & 0xff, + (lo >>> 8) & 0xff, + (lo >>> 16) & 0xff, + lo >>> 24, + hi & 0xff, + (hi >>> 8) & 0xff, + (hi >>> 16) & 0xff, + hi >>> 24 + ]; + } + toBytesBE() { + const hi = this.high, lo = this.low; + return [ + hi >>> 24, + (hi >>> 16) & 0xff, + (hi >>> 8) & 0xff, + hi & 0xff, + lo >>> 24, + (lo >>> 16) & 0xff, + (lo >>> 8) & 0xff, + lo & 0xff + ]; + } + toSigned() { + if (!this.unsigned) + return this; + return Long.fromBits(this.low, this.high, false); + } + toString(radix) { + radix = radix || 10; + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + if (this.isZero()) + return '0'; + if (this.isNegative()) { + if (this.eq(Long.MIN_VALUE)) { + const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this); + return div.toString(radix) + rem1.toInt().toString(radix); + } + else + return '-' + this.neg().toString(radix); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned); + let rem = this; + let result = ''; + while (true) { + const remDiv = rem.div(radixToPower); + const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0; + let digits = intval.toString(radix); + rem = remDiv; + if (rem.isZero()) { + return digits + result; + } + else { + while (digits.length < 6) + digits = '0' + digits; + result = '' + digits + result; + } + } + } + toUnsigned() { + if (this.unsigned) + return this; + return Long.fromBits(this.low, this.high, true); + } + xor(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned); + } + eqz() { + return this.isZero(); + } + le(other) { + return this.lessThanOrEqual(other); + } + toExtendedJSON(options) { + if (options && options.relaxed) + return this.toNumber(); + return { $numberLong: this.toString() }; + } + static fromExtendedJSON(doc, options) { + const { useBigInt64 = false, relaxed = true } = { ...options }; + if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) { + throw new BSONError('$numberLong string is too long'); + } + if (!DECIMAL_REG_EX.test(doc.$numberLong)) { + throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`); + } + if (useBigInt64) { + const bigIntResult = BigInt(doc.$numberLong); + return BigInt.asIntN(64, bigIntResult); + } + const longResult = Long.fromString(doc.$numberLong); + if (relaxed) { + return longResult.toNumber(); + } + return longResult; + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const longVal = inspect(this.toString(), options); + const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : ''; + return `new Long(${longVal}${unsignedVal})`; + } +} +Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL); +Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true); +Long.ZERO = Long.fromInt(0); +Long.UZERO = Long.fromInt(0, true); +Long.ONE = Long.fromInt(1); +Long.UONE = Long.fromInt(1, true); +Long.NEG_ONE = Long.fromInt(-1); +Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false); +Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false); + +const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/; +const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i; +const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i; +const EXPONENT_MAX = 6111; +const EXPONENT_MIN = -6176; +const EXPONENT_BIAS = 6176; +const MAX_DIGITS = 34; +const NAN_BUFFER = ByteUtils.fromNumberArray([ + 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([ + 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([ + 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const EXPONENT_REGEX = /^([-+])?(\d+)?$/; +const COMBINATION_MASK = 0x1f; +const EXPONENT_MASK = 0x3fff; +const COMBINATION_INFINITY = 30; +const COMBINATION_NAN = 31; +function isDigit(value) { + return !isNaN(parseInt(value, 10)); +} +function divideu128(value) { + const DIVISOR = Long.fromNumber(1000 * 1000 * 1000); + let _rem = Long.fromNumber(0); + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) { + return { quotient: value, rem: _rem }; + } + for (let i = 0; i <= 3; i++) { + _rem = _rem.shiftLeft(32); + _rem = _rem.add(new Long(value.parts[i], 0)); + value.parts[i] = _rem.div(DIVISOR).low; + _rem = _rem.modulo(DIVISOR); + } + return { quotient: value, rem: _rem }; +} +function multiply64x2(left, right) { + if (!left && !right) { + return { high: Long.fromNumber(0), low: Long.fromNumber(0) }; + } + const leftHigh = left.shiftRightUnsigned(32); + const leftLow = new Long(left.getLowBits(), 0); + const rightHigh = right.shiftRightUnsigned(32); + const rightLow = new Long(right.getLowBits(), 0); + let productHigh = leftHigh.multiply(rightHigh); + let productMid = leftHigh.multiply(rightLow); + const productMid2 = leftLow.multiply(rightHigh); + let productLow = leftLow.multiply(rightLow); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productMid = new Long(productMid.getLowBits(), 0) + .add(productMid2) + .add(productLow.shiftRightUnsigned(32)); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0)); + return { high: productHigh, low: productLow }; +} +function lessThan(left, right) { + const uhleft = left.high >>> 0; + const uhright = right.high >>> 0; + if (uhleft < uhright) { + return true; + } + else if (uhleft === uhright) { + const ulleft = left.low >>> 0; + const ulright = right.low >>> 0; + if (ulleft < ulright) + return true; + } + return false; +} +function invalidErr(string, message) { + throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`); +} +class Decimal128 extends BSONValue { + get _bsontype() { + return 'Decimal128'; + } + constructor(bytes) { + super(); + if (typeof bytes === 'string') { + this.bytes = Decimal128.fromString(bytes).bytes; + } + else if (isUint8Array(bytes)) { + if (bytes.byteLength !== 16) { + throw new BSONError('Decimal128 must take a Buffer of 16 bytes'); + } + this.bytes = bytes; + } + else { + throw new BSONError('Decimal128 must take a Buffer or string'); + } + } + static fromString(representation) { + return Decimal128._fromString(representation, { allowRounding: false }); + } + static fromStringWithRounding(representation) { + return Decimal128._fromString(representation, { allowRounding: true }); + } + static _fromString(representation, options) { + let isNegative = false; + let sawSign = false; + let sawRadix = false; + let foundNonZero = false; + let significantDigits = 0; + let nDigitsRead = 0; + let nDigits = 0; + let radixPosition = 0; + let firstNonZero = 0; + const digits = [0]; + let nDigitsStored = 0; + let digitsInsert = 0; + let lastDigit = 0; + let exponent = 0; + let significandHigh = new Long(0, 0); + let significandLow = new Long(0, 0); + let biasedExponent = 0; + let index = 0; + if (representation.length >= 7000) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + const stringMatch = representation.match(PARSE_STRING_REGEXP); + const infMatch = representation.match(PARSE_INF_REGEXP); + const nanMatch = representation.match(PARSE_NAN_REGEXP); + if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + if (stringMatch) { + const unsignedNumber = stringMatch[2]; + const e = stringMatch[4]; + const expSign = stringMatch[5]; + const expNumber = stringMatch[6]; + if (e && expNumber === undefined) + invalidErr(representation, 'missing exponent power'); + if (e && unsignedNumber === undefined) + invalidErr(representation, 'missing exponent base'); + if (e === undefined && (expSign || expNumber)) { + invalidErr(representation, 'missing e before exponent'); + } + } + if (representation[index] === '+' || representation[index] === '-') { + sawSign = true; + isNegative = representation[index++] === '-'; + } + if (!isDigit(representation[index]) && representation[index] !== '.') { + if (representation[index] === 'i' || representation[index] === 'I') { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + else if (representation[index] === 'N') { + return new Decimal128(NAN_BUFFER); + } + } + while (isDigit(representation[index]) || representation[index] === '.') { + if (representation[index] === '.') { + if (sawRadix) + invalidErr(representation, 'contains multiple periods'); + sawRadix = true; + index = index + 1; + continue; + } + if (nDigitsStored < MAX_DIGITS) { + if (representation[index] !== '0' || foundNonZero) { + if (!foundNonZero) { + firstNonZero = nDigitsRead; + } + foundNonZero = true; + digits[digitsInsert++] = parseInt(representation[index], 10); + nDigitsStored = nDigitsStored + 1; + } + } + if (foundNonZero) + nDigits = nDigits + 1; + if (sawRadix) + radixPosition = radixPosition + 1; + nDigitsRead = nDigitsRead + 1; + index = index + 1; + } + if (sawRadix && !nDigitsRead) + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + if (representation[index] === 'e' || representation[index] === 'E') { + const match = representation.substr(++index).match(EXPONENT_REGEX); + if (!match || !match[2]) + return new Decimal128(NAN_BUFFER); + exponent = parseInt(match[0], 10); + index = index + match[0].length; + } + if (representation[index]) + return new Decimal128(NAN_BUFFER); + if (!nDigitsStored) { + digits[0] = 0; + nDigits = 1; + nDigitsStored = 1; + significantDigits = 0; + } + else { + lastDigit = nDigitsStored - 1; + significantDigits = nDigits; + if (significantDigits !== 1) { + while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') { + significantDigits = significantDigits - 1; + } + } + } + if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) { + exponent = EXPONENT_MIN; + } + else { + exponent = exponent - radixPosition; + } + while (exponent > EXPONENT_MAX) { + lastDigit = lastDigit + 1; + if (lastDigit >= MAX_DIGITS) { + if (significantDigits === 0) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + exponent = exponent - 1; + } + if (options.allowRounding) { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0 && significantDigits < nDigitsStored) { + exponent = EXPONENT_MIN; + significantDigits = 0; + break; + } + if (nDigitsStored < nDigits) { + nDigits = nDigits - 1; + } + else { + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + const digitsString = digits.join(''); + if (digitsString.match(/^0+$/)) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + let endOfString = nDigitsRead; + if (sawRadix) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + let roundBit = 0; + if (roundDigit >= 5) { + roundBit = 1; + if (roundDigit === 5) { + roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0; + for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) { + if (parseInt(representation[i], 10)) { + roundBit = 1; + break; + } + } + } + } + if (roundBit) { + let dIdx = lastDigit; + for (; dIdx >= 0; dIdx--) { + if (++digits[dIdx] > 9) { + digits[dIdx] = 0; + if (dIdx === 0) { + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + digits[dIdx] = 1; + } + else { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + } + } + else { + break; + } + } + } + } + } + else { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0) { + if (significantDigits === 0) { + exponent = EXPONENT_MIN; + break; + } + invalidErr(representation, 'exponent underflow'); + } + if (nDigitsStored < nDigits) { + if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' && + significantDigits !== 0) { + invalidErr(representation, 'inexact rounding'); + } + nDigits = nDigits - 1; + } + else { + if (digits[lastDigit] !== 0) { + invalidErr(representation, 'inexact rounding'); + } + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + if (sawRadix) { + firstNonZero = firstNonZero + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + if (roundDigit !== 0) { + invalidErr(representation, 'inexact rounding'); + } + } + } + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + if (significantDigits === 0) { + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + } + else if (lastDigit < 17) { + let dIdx = 0; + significandLow = Long.fromNumber(digits[dIdx++]); + significandHigh = new Long(0, 0); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + else { + let dIdx = 0; + significandHigh = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit - 17; dIdx++) { + significandHigh = significandHigh.multiply(Long.fromNumber(10)); + significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx])); + } + significandLow = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000')); + significand.low = significand.low.add(significandLow); + if (lessThan(significand.low, significandLow)) { + significand.high = significand.high.add(Long.fromNumber(1)); + } + biasedExponent = exponent + EXPONENT_BIAS; + const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) }; + if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) { + dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61)); + dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff))); + } + else { + dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49)); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff))); + } + dec.low = significand.low; + if (isNegative) { + dec.high = dec.high.or(Long.fromString('9223372036854775808')); + } + const buffer = ByteUtils.allocateUnsafe(16); + index = 0; + buffer[index++] = dec.low.low & 0xff; + buffer[index++] = (dec.low.low >> 8) & 0xff; + buffer[index++] = (dec.low.low >> 16) & 0xff; + buffer[index++] = (dec.low.low >> 24) & 0xff; + buffer[index++] = dec.low.high & 0xff; + buffer[index++] = (dec.low.high >> 8) & 0xff; + buffer[index++] = (dec.low.high >> 16) & 0xff; + buffer[index++] = (dec.low.high >> 24) & 0xff; + buffer[index++] = dec.high.low & 0xff; + buffer[index++] = (dec.high.low >> 8) & 0xff; + buffer[index++] = (dec.high.low >> 16) & 0xff; + buffer[index++] = (dec.high.low >> 24) & 0xff; + buffer[index++] = dec.high.high & 0xff; + buffer[index++] = (dec.high.high >> 8) & 0xff; + buffer[index++] = (dec.high.high >> 16) & 0xff; + buffer[index++] = (dec.high.high >> 24) & 0xff; + return new Decimal128(buffer); + } + toString() { + let biased_exponent; + let significand_digits = 0; + const significand = new Array(36); + for (let i = 0; i < significand.length; i++) + significand[i] = 0; + let index = 0; + let is_zero = false; + let significand_msb; + let significand128 = { parts: [0, 0, 0, 0] }; + let j, k; + const string = []; + index = 0; + const buffer = this.bytes; + const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + index = 0; + const dec = { + low: new Long(low, midl), + high: new Long(midh, high) + }; + if (dec.high.lessThan(Long.ZERO)) { + string.push('-'); + } + const combination = (high >> 26) & COMBINATION_MASK; + if (combination >> 3 === 3) { + if (combination === COMBINATION_INFINITY) { + return string.join('') + 'Infinity'; + } + else if (combination === COMBINATION_NAN) { + return 'NaN'; + } + else { + biased_exponent = (high >> 15) & EXPONENT_MASK; + significand_msb = 0x08 + ((high >> 14) & 0x01); + } + } + else { + significand_msb = (high >> 14) & 0x07; + biased_exponent = (high >> 17) & EXPONENT_MASK; + } + const exponent = biased_exponent - EXPONENT_BIAS; + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + if (significand128.parts[0] === 0 && + significand128.parts[1] === 0 && + significand128.parts[2] === 0 && + significand128.parts[3] === 0) { + is_zero = true; + } + else { + for (k = 3; k >= 0; k--) { + let least_digits = 0; + const result = divideu128(significand128); + significand128 = result.quotient; + least_digits = result.rem.low; + if (!least_digits) + continue; + for (j = 8; j >= 0; j--) { + significand[k * 9 + j] = least_digits % 10; + least_digits = Math.floor(least_digits / 10); + } + } + } + if (is_zero) { + significand_digits = 1; + significand[index] = 0; + } + else { + significand_digits = 36; + while (!significand[index]) { + significand_digits = significand_digits - 1; + index = index + 1; + } + } + const scientific_exponent = significand_digits - 1 + exponent; + if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) { + if (significand_digits > 34) { + string.push(`${0}`); + if (exponent > 0) + string.push(`E+${exponent}`); + else if (exponent < 0) + string.push(`E${exponent}`); + return string.join(''); + } + string.push(`${significand[index++]}`); + significand_digits = significand_digits - 1; + if (significand_digits) { + string.push('.'); + } + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + string.push('E'); + if (scientific_exponent > 0) { + string.push(`+${scientific_exponent}`); + } + else { + string.push(`${scientific_exponent}`); + } + } + else { + if (exponent >= 0) { + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + } + else { + let radix_position = significand_digits + exponent; + if (radix_position > 0) { + for (let i = 0; i < radix_position; i++) { + string.push(`${significand[index++]}`); + } + } + else { + string.push('0'); + } + string.push('.'); + while (radix_position++ < 0) { + string.push('0'); + } + for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) { + string.push(`${significand[index++]}`); + } + } + } + return string.join(''); + } + toJSON() { + return { $numberDecimal: this.toString() }; + } + toExtendedJSON() { + return { $numberDecimal: this.toString() }; + } + static fromExtendedJSON(doc) { + return Decimal128.fromString(doc.$numberDecimal); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const d128string = inspect(this.toString(), options); + return `new Decimal128(${d128string})`; + } +} + +class Double extends BSONValue { + get _bsontype() { + return 'Double'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value; + } + static fromString(value) { + const coercedValue = Number(value); + if (value === 'NaN') + return new Double(NaN); + if (value === 'Infinity') + return new Double(Infinity); + if (value === '-Infinity') + return new Double(-Infinity); + if (!Number.isFinite(coercedValue)) { + throw new BSONError(`Input: ${value} is not representable as a Double`); + } + if (value.trim() !== value) { + throw new BSONError(`Input: '${value}' contains whitespace`); + } + if (value === '') { + throw new BSONError(`Input is an empty string`); + } + if (/[^-0-9.+eE]/.test(value)) { + throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`); + } + return new Double(coercedValue); + } + valueOf() { + return this.value; + } + toJSON() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toExtendedJSON(options) { + if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) { + return this.value; + } + if (Object.is(Math.sign(this.value), -0)) { + return { $numberDouble: '-0.0' }; + } + return { + $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString() + }; + } + static fromExtendedJSON(doc, options) { + const doubleValue = parseFloat(doc.$numberDouble); + return options && options.relaxed ? doubleValue : new Double(doubleValue); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Double(${inspect(this.value, options)})`; + } +} + +class Int32 extends BSONValue { + get _bsontype() { + return 'Int32'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value | 0; + } + static fromString(value) { + const cleanedValue = removeLeadingZerosAndExplicitPlus(value); + const coercedValue = Number(value); + if (BSON_INT32_MAX < coercedValue) { + throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`); + } + else if (BSON_INT32_MIN > coercedValue) { + throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`); + } + else if (!Number.isSafeInteger(coercedValue)) { + throw new BSONError(`Input: '${value}' is not a safe integer`); + } + else if (coercedValue.toString() !== cleanedValue) { + throw new BSONError(`Input: '${value}' is not a valid Int32 string`); + } + return new Int32(coercedValue); + } + valueOf() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toJSON() { + return this.value; + } + toExtendedJSON(options) { + if (options && (options.relaxed || options.legacy)) + return this.value; + return { $numberInt: this.value.toString() }; + } + static fromExtendedJSON(doc, options) { + return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Int32(${inspect(this.value, options)})`; + } +} + +class MaxKey extends BSONValue { + get _bsontype() { + return 'MaxKey'; + } + toExtendedJSON() { + return { $maxKey: 1 }; + } + static fromExtendedJSON() { + return new MaxKey(); + } + inspect() { + return 'new MaxKey()'; + } +} + +class MinKey extends BSONValue { + get _bsontype() { + return 'MinKey'; + } + toExtendedJSON() { + return { $minKey: 1 }; + } + static fromExtendedJSON() { + return new MinKey(); + } + inspect() { + return 'new MinKey()'; + } +} + +const FLOAT = new Float64Array(1); +const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8); +FLOAT[0] = -1; +const isBigEndian = FLOAT_BYTES[7] === 0; +const NumberUtils = { + getNonnegativeInt32LE(source, offset) { + if (source[offset + 3] > 127) { + throw new RangeError(`Size cannot be negative at offset: ${offset}`); + } + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getInt32LE(source, offset) { + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getUint32LE(source, offset) { + return (source[offset] + + source[offset + 1] * 256 + + source[offset + 2] * 65536 + + source[offset + 3] * 16777216); + }, + getUint32BE(source, offset) { + return (source[offset + 3] + + source[offset + 2] * 256 + + source[offset + 1] * 65536 + + source[offset] * 16777216); + }, + getBigInt64LE(source, offset) { + const lo = NumberUtils.getUint32LE(source, offset); + const hi = NumberUtils.getUint32LE(source, offset + 4); + return (BigInt(hi) << BigInt(32)) + BigInt(lo); + }, + getFloat64LE: isBigEndian + ? (source, offset) => { + FLOAT_BYTES[7] = source[offset]; + FLOAT_BYTES[6] = source[offset + 1]; + FLOAT_BYTES[5] = source[offset + 2]; + FLOAT_BYTES[4] = source[offset + 3]; + FLOAT_BYTES[3] = source[offset + 4]; + FLOAT_BYTES[2] = source[offset + 5]; + FLOAT_BYTES[1] = source[offset + 6]; + FLOAT_BYTES[0] = source[offset + 7]; + return FLOAT[0]; + } + : (source, offset) => { + FLOAT_BYTES[0] = source[offset]; + FLOAT_BYTES[1] = source[offset + 1]; + FLOAT_BYTES[2] = source[offset + 2]; + FLOAT_BYTES[3] = source[offset + 3]; + FLOAT_BYTES[4] = source[offset + 4]; + FLOAT_BYTES[5] = source[offset + 5]; + FLOAT_BYTES[6] = source[offset + 6]; + FLOAT_BYTES[7] = source[offset + 7]; + return FLOAT[0]; + }, + setInt32BE(destination, offset, value) { + destination[offset + 3] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset] = value; + return 4; + }, + setInt32LE(destination, offset, value) { + destination[offset] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 3] = value; + return 4; + }, + setBigInt64LE(destination, offset, value) { + const mask32bits = BigInt(4294967295); + let lo = Number(value & mask32bits); + destination[offset] = lo; + lo >>= 8; + destination[offset + 1] = lo; + lo >>= 8; + destination[offset + 2] = lo; + lo >>= 8; + destination[offset + 3] = lo; + let hi = Number((value >> BigInt(32)) & mask32bits); + destination[offset + 4] = hi; + hi >>= 8; + destination[offset + 5] = hi; + hi >>= 8; + destination[offset + 6] = hi; + hi >>= 8; + destination[offset + 7] = hi; + return 8; + }, + setFloat64LE: isBigEndian + ? (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[7]; + destination[offset + 1] = FLOAT_BYTES[6]; + destination[offset + 2] = FLOAT_BYTES[5]; + destination[offset + 3] = FLOAT_BYTES[4]; + destination[offset + 4] = FLOAT_BYTES[3]; + destination[offset + 5] = FLOAT_BYTES[2]; + destination[offset + 6] = FLOAT_BYTES[1]; + destination[offset + 7] = FLOAT_BYTES[0]; + return 8; + } + : (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[0]; + destination[offset + 1] = FLOAT_BYTES[1]; + destination[offset + 2] = FLOAT_BYTES[2]; + destination[offset + 3] = FLOAT_BYTES[3]; + destination[offset + 4] = FLOAT_BYTES[4]; + destination[offset + 5] = FLOAT_BYTES[5]; + destination[offset + 6] = FLOAT_BYTES[6]; + destination[offset + 7] = FLOAT_BYTES[7]; + return 8; + } +}; + +const checkForHexRegExp = new RegExp('^[0-9a-fA-F]{24}$'); +let PROCESS_UNIQUE = null; +class ObjectId extends BSONValue { + get _bsontype() { + return 'ObjectId'; + } + constructor(inputId) { + super(); + let workingId; + if (typeof inputId === 'object' && inputId && 'id' in inputId) { + if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) { + throw new BSONError('Argument passed in must have an id that is of type string or Buffer'); + } + if ('toHexString' in inputId && typeof inputId.toHexString === 'function') { + workingId = ByteUtils.fromHex(inputId.toHexString()); + } + else { + workingId = inputId.id; + } + } + else { + workingId = inputId; + } + if (workingId == null || typeof workingId === 'number') { + this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined); + } + else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) { + this.buffer = ByteUtils.toLocalBufferType(workingId); + } + else if (typeof workingId === 'string') { + if (workingId.length === 24 && checkForHexRegExp.test(workingId)) { + this.buffer = ByteUtils.fromHex(workingId); + } + else { + throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer'); + } + } + else { + throw new BSONError('Argument passed in does not match the accepted types'); + } + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(this.id); + } + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(value); + } + } + toHexString() { + if (ObjectId.cacheHexString && this.__id) { + return this.__id; + } + const hexString = ByteUtils.toHex(this.id); + if (ObjectId.cacheHexString && !this.__id) { + this.__id = hexString; + } + return hexString; + } + static getInc() { + return (ObjectId.index = (ObjectId.index + 1) % 0xffffff); + } + static generate(time) { + if ('number' !== typeof time) { + time = Math.floor(Date.now() / 1000); + } + const inc = ObjectId.getInc(); + const buffer = ByteUtils.allocateUnsafe(12); + NumberUtils.setInt32BE(buffer, 0, time); + if (PROCESS_UNIQUE === null) { + PROCESS_UNIQUE = ByteUtils.randomBytes(5); + } + buffer[4] = PROCESS_UNIQUE[0]; + buffer[5] = PROCESS_UNIQUE[1]; + buffer[6] = PROCESS_UNIQUE[2]; + buffer[7] = PROCESS_UNIQUE[3]; + buffer[8] = PROCESS_UNIQUE[4]; + buffer[11] = inc & 0xff; + buffer[10] = (inc >> 8) & 0xff; + buffer[9] = (inc >> 16) & 0xff; + return buffer; + } + toString(encoding) { + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + if (encoding === 'hex') + return this.toHexString(); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + static is(variable) { + return (variable != null && + typeof variable === 'object' && + '_bsontype' in variable && + variable._bsontype === 'ObjectId'); + } + equals(otherId) { + if (otherId === undefined || otherId === null) { + return false; + } + if (ObjectId.is(otherId)) { + return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer)); + } + if (typeof otherId === 'string') { + return otherId.toLowerCase() === this.toHexString(); + } + if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') { + const otherIdString = otherId.toHexString(); + const thisIdString = this.toHexString(); + return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString; + } + return false; + } + getTimestamp() { + const timestamp = new Date(); + const time = NumberUtils.getUint32BE(this.buffer, 0); + timestamp.setTime(Math.floor(time) * 1000); + return timestamp; + } + static createPk() { + return new ObjectId(); + } + serializeInto(uint8array, index) { + uint8array[index] = this.buffer[0]; + uint8array[index + 1] = this.buffer[1]; + uint8array[index + 2] = this.buffer[2]; + uint8array[index + 3] = this.buffer[3]; + uint8array[index + 4] = this.buffer[4]; + uint8array[index + 5] = this.buffer[5]; + uint8array[index + 6] = this.buffer[6]; + uint8array[index + 7] = this.buffer[7]; + uint8array[index + 8] = this.buffer[8]; + uint8array[index + 9] = this.buffer[9]; + uint8array[index + 10] = this.buffer[10]; + uint8array[index + 11] = this.buffer[11]; + return 12; + } + static createFromTime(time) { + const buffer = ByteUtils.allocate(12); + for (let i = 11; i >= 4; i--) + buffer[i] = 0; + NumberUtils.setInt32BE(buffer, 0, time); + return new ObjectId(buffer); + } + static createFromHexString(hexString) { + if (hexString?.length !== 24) { + throw new BSONError('hex string must be 24 characters'); + } + return new ObjectId(ByteUtils.fromHex(hexString)); + } + static createFromBase64(base64) { + if (base64?.length !== 16) { + throw new BSONError('base64 string must be 16 characters'); + } + return new ObjectId(ByteUtils.fromBase64(base64)); + } + static isValid(id) { + if (id == null) + return false; + try { + new ObjectId(id); + return true; + } + catch { + return false; + } + } + toExtendedJSON() { + if (this.toHexString) + return { $oid: this.toHexString() }; + return { $oid: this.toString('hex') }; + } + static fromExtendedJSON(doc) { + return new ObjectId(doc.$oid); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new ObjectId(${inspect(this.toHexString(), options)})`; + } +} +ObjectId.index = Math.floor(Math.random() * 0xffffff); + +function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) { + let totalLength = 4 + 1; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined); + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + } + for (const key of Object.keys(object)) { + totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined); + } + } + return totalLength; +} +function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) { + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + switch (typeof value) { + case 'string': + return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1; + case 'number': + if (Math.floor(value) === value && + value >= JS_INT_MIN && + value <= JS_INT_MAX) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1); + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + case 'undefined': + if (isArray || !ignoreUndefined) + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + return 0; + case 'boolean': + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1); + case 'object': + if (value != null && + typeof value._bsontype === 'string' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + } + else if (value._bsontype === 'ObjectId') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1); + } + else if (value instanceof Date || isDate(value)) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (ArrayBuffer.isView(value) || + value instanceof ArrayBuffer || + isAnyArrayBuffer(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength); + } + else if (value._bsontype === 'Long' || + value._bsontype === 'Double' || + value._bsontype === 'Timestamp') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (value._bsontype === 'Decimal128') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1); + } + else if (value._bsontype === 'Code') { + if (value.scope != null && Object.keys(value.scope).length > 0) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1 + + internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1); + } + } + else if (value._bsontype === 'Binary') { + const binary = value; + if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + (binary.position + 1 + 4 + 1 + 4)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1)); + } + } + else if (value._bsontype === 'Symbol') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + ByteUtils.utf8ByteLength(value.value) + + 4 + + 1 + + 1); + } + else if (value._bsontype === 'DBRef') { + const ordered_values = Object.assign({ + $ref: value.collection, + $id: value.oid + }, value.fields); + if (value.db != null) { + ordered_values['$db'] = value.db; + } + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined)); + } + else if (value instanceof RegExp || isRegExp(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.source) + + 1 + + (value.global ? 1 : 0) + + (value.ignoreCase ? 1 : 0) + + (value.multiline ? 1 : 0) + + 1); + } + else if (value._bsontype === 'BSONRegExp') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.pattern) + + 1 + + ByteUtils.utf8ByteLength(value.options) + + 1); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) + + 1); + } + case 'function': + if (serializeFunctions) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.toString()) + + 1); + } + } + return 0; +} + +function alphabetize(str) { + return str.split('').sort().join(''); +} +class BSONRegExp extends BSONValue { + get _bsontype() { + return 'BSONRegExp'; + } + constructor(pattern, options) { + super(); + this.pattern = pattern; + this.options = alphabetize(options ?? ''); + if (this.pattern.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`); + } + if (this.options.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`); + } + for (let i = 0; i < this.options.length; i++) { + if (!(this.options[i] === 'i' || + this.options[i] === 'm' || + this.options[i] === 'x' || + this.options[i] === 'l' || + this.options[i] === 's' || + this.options[i] === 'u')) { + throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`); + } + } + } + static parseOptions(options) { + return options ? options.split('').sort().join('') : ''; + } + toExtendedJSON(options) { + options = options || {}; + if (options.legacy) { + return { $regex: this.pattern, $options: this.options }; + } + return { $regularExpression: { pattern: this.pattern, options: this.options } }; + } + static fromExtendedJSON(doc) { + if ('$regex' in doc) { + if (typeof doc.$regex !== 'string') { + if (doc.$regex._bsontype === 'BSONRegExp') { + return doc; + } + } + else { + return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options)); + } + } + if ('$regularExpression' in doc) { + return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options)); + } + throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`); + } + inspect(depth, options, inspect) { + const stylize = getStylizeFunction(options) ?? (v => v); + inspect ??= defaultInspect; + const pattern = stylize(inspect(this.pattern), 'regexp'); + const flags = stylize(inspect(this.options), 'regexp'); + return `new BSONRegExp(${pattern}, ${flags})`; + } +} + +class BSONSymbol extends BSONValue { + get _bsontype() { + return 'BSONSymbol'; + } + constructor(value) { + super(); + this.value = value; + } + valueOf() { + return this.value; + } + toString() { + return this.value; + } + toJSON() { + return this.value; + } + toExtendedJSON() { + return { $symbol: this.value }; + } + static fromExtendedJSON(doc) { + return new BSONSymbol(doc.$symbol); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new BSONSymbol(${inspect(this.value, options)})`; + } +} + +const LongWithoutOverridesClass = Long; +class Timestamp extends LongWithoutOverridesClass { + get _bsontype() { + return 'Timestamp'; + } + constructor(low) { + if (low == null) { + super(0, 0, true); + } + else if (typeof low === 'bigint') { + super(low, true); + } + else if (Long.isLong(low)) { + super(low.low, low.high, true); + } + else if (typeof low === 'object' && 't' in low && 'i' in low) { + if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide t as a number'); + } + if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide i as a number'); + } + const t = Number(low.t); + const i = Number(low.i); + if (t < 0 || Number.isNaN(t)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive t'); + } + if (i < 0 || Number.isNaN(i)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive i'); + } + if (t > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max'); + } + if (i > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max'); + } + super(i, t, true); + } + else { + throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }'); + } + } + toJSON() { + return { + $timestamp: this.toString() + }; + } + static fromInt(value) { + return new Timestamp(Long.fromInt(value, true)); + } + static fromNumber(value) { + return new Timestamp(Long.fromNumber(value, true)); + } + static fromBits(lowBits, highBits) { + return new Timestamp({ i: lowBits, t: highBits }); + } + static fromString(str, optRadix) { + return new Timestamp(Long.fromString(str, true, optRadix)); + } + toExtendedJSON() { + return { $timestamp: { t: this.high >>> 0, i: this.low >>> 0 } }; + } + static fromExtendedJSON(doc) { + const i = Long.isLong(doc.$timestamp.i) + ? doc.$timestamp.i.getLowBitsUnsigned() + : doc.$timestamp.i; + const t = Long.isLong(doc.$timestamp.t) + ? doc.$timestamp.t.getLowBitsUnsigned() + : doc.$timestamp.t; + return new Timestamp({ t, i }); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const t = inspect(this.high >>> 0, options); + const i = inspect(this.low >>> 0, options); + return `new Timestamp({ t: ${t}, i: ${i} })`; + } +} +Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE; + +const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX); +const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN); +function internalDeserialize(buffer, options, isArray) { + options = options == null ? {} : options; + const index = options && options.index ? options.index : 0; + const size = NumberUtils.getInt32LE(buffer, index); + if (size < 5) { + throw new BSONError(`bson size must be >= 5, is ${size}`); + } + if (options.allowObjectSmallerThanBufferSize && buffer.length < size) { + throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`); + } + if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) { + throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`); + } + if (size + index > buffer.byteLength) { + throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`); + } + if (buffer[index + size - 1] !== 0) { + throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00"); + } + return deserializeObject(buffer, index, options, isArray); +} +const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/; +function deserializeObject(buffer, index, options, isArray = false) { + const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw']; + const raw = options['raw'] == null ? false : options['raw']; + const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false; + const promoteBuffers = options.promoteBuffers ?? false; + const promoteLongs = options.promoteLongs ?? true; + const promoteValues = options.promoteValues ?? true; + const useBigInt64 = options.useBigInt64 ?? false; + if (useBigInt64 && !promoteValues) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + if (useBigInt64 && !promoteLongs) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + const validation = options.validation == null ? { utf8: true } : options.validation; + let globalUTFValidation = true; + let validationSetting; + let utf8KeysSet; + const utf8ValidatedKeys = validation.utf8; + if (typeof utf8ValidatedKeys === 'boolean') { + validationSetting = utf8ValidatedKeys; + } + else { + globalUTFValidation = false; + const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) { + return utf8ValidatedKeys[key]; + }); + if (utf8ValidationValues.length === 0) { + throw new BSONError('UTF-8 validation setting cannot be empty'); + } + if (typeof utf8ValidationValues[0] !== 'boolean') { + throw new BSONError('Invalid UTF-8 validation option, must specify boolean values'); + } + validationSetting = utf8ValidationValues[0]; + if (!utf8ValidationValues.every(item => item === validationSetting)) { + throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false'); + } + } + if (!globalUTFValidation) { + utf8KeysSet = new Set(); + for (const key of Object.keys(utf8ValidatedKeys)) { + utf8KeysSet.add(key); + } + } + const startIndex = index; + if (buffer.length < 5) + throw new BSONError('corrupt bson message < 5 bytes long'); + const size = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (size < 5 || size > buffer.length) + throw new BSONError('corrupt bson message'); + const object = isArray ? [] : {}; + let arrayIndex = 0; + const done = false; + let isPossibleDBRef = isArray ? false : null; + while (!done) { + const elementType = buffer[index++]; + if (elementType === 0) + break; + let i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.byteLength) + throw new BSONError('Bad BSON Document: illegal CString'); + const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false); + let shouldValidateKey = true; + if (globalUTFValidation || utf8KeysSet?.has(name)) { + shouldValidateKey = validationSetting; + } + else { + shouldValidateKey = !validationSetting; + } + if (isPossibleDBRef !== false && name[0] === '$') { + isPossibleDBRef = allowedDBRefKeys.test(name); + } + let value; + index = i + 1; + if (elementType === BSON_DATA_STRING) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + } + else if (elementType === BSON_DATA_OID) { + const oid = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oid[i] = buffer[index + i]; + value = new ObjectId(oid); + index = index + 12; + } + else if (elementType === BSON_DATA_INT && promoteValues === false) { + value = new Int32(NumberUtils.getInt32LE(buffer, index)); + index += 4; + } + else if (elementType === BSON_DATA_INT) { + value = NumberUtils.getInt32LE(buffer, index); + index += 4; + } + else if (elementType === BSON_DATA_NUMBER) { + value = NumberUtils.getFloat64LE(buffer, index); + index += 8; + if (promoteValues === false) + value = new Double(value); + } + else if (elementType === BSON_DATA_DATE) { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + value = new Date(new Long(lowBits, highBits).toNumber()); + } + else if (elementType === BSON_DATA_BOOLEAN) { + if (buffer[index] !== 0 && buffer[index] !== 1) + throw new BSONError('illegal boolean type value'); + value = buffer[index++] === 1; + } + else if (elementType === BSON_DATA_OBJECT) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + if (objectSize <= 0 || objectSize > buffer.length - index) + throw new BSONError('bad embedded document length in bson'); + if (raw) { + value = buffer.slice(index, index + objectSize); + } + else { + let objectOptions = options; + if (!globalUTFValidation) { + objectOptions = { ...options, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, objectOptions, false); + } + index = index + objectSize; + } + else if (elementType === BSON_DATA_ARRAY) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + let arrayOptions = options; + const stopIndex = index + objectSize; + if (fieldsAsRaw && fieldsAsRaw[name]) { + arrayOptions = { ...options, raw: true }; + } + if (!globalUTFValidation) { + arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, arrayOptions, true); + index = index + objectSize; + if (buffer[index - 1] !== 0) + throw new BSONError('invalid array terminator byte'); + if (index !== stopIndex) + throw new BSONError('corrupted array bson'); + } + else if (elementType === BSON_DATA_UNDEFINED) { + value = undefined; + } + else if (elementType === BSON_DATA_NULL) { + value = null; + } + else if (elementType === BSON_DATA_LONG) { + if (useBigInt64) { + value = NumberUtils.getBigInt64LE(buffer, index); + index += 8; + } + else { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + const long = new Long(lowBits, highBits); + if (promoteLongs && promoteValues === true) { + value = + long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG) + ? long.toNumber() + : long; + } + else { + value = long; + } + } + } + else if (elementType === BSON_DATA_DECIMAL128) { + const bytes = ByteUtils.allocateUnsafe(16); + for (let i = 0; i < 16; i++) + bytes[i] = buffer[index + i]; + index = index + 16; + value = new Decimal128(bytes); + } + else if (elementType === BSON_DATA_BINARY) { + let binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + const totalBinarySize = binarySize; + const subType = buffer[index++]; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found'); + if (binarySize > buffer.byteLength) + throw new BSONError('Binary type size larger than document size'); + if (buffer['slice'] != null) { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.toLocalBufferType(buffer.slice(index, index + binarySize)); + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + else { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.allocateUnsafe(binarySize); + for (i = 0; i < binarySize; i++) { + value[i] = buffer[index + i]; + } + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + index = index + binarySize; + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + const optionsArray = new Array(regExpOptions.length); + for (i = 0; i < regExpOptions.length; i++) { + switch (regExpOptions[i]) { + case 'm': + optionsArray[i] = 'm'; + break; + case 's': + optionsArray[i] = 'g'; + break; + case 'i': + optionsArray[i] = 'i'; + break; + } + } + value = new RegExp(source, optionsArray.join('')); + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + value = new BSONRegExp(source, regExpOptions); + } + else if (elementType === BSON_DATA_SYMBOL) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = promoteValues ? symbol : new BSONSymbol(symbol); + index = index + stringSize; + } + else if (elementType === BSON_DATA_TIMESTAMP) { + value = new Timestamp({ + i: NumberUtils.getUint32LE(buffer, index), + t: NumberUtils.getUint32LE(buffer, index + 4) + }); + index += 8; + } + else if (elementType === BSON_DATA_MIN_KEY) { + value = new MinKey(); + } + else if (elementType === BSON_DATA_MAX_KEY) { + value = new MaxKey(); + } + else if (elementType === BSON_DATA_CODE) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = new Code(functionString); + index = index + stringSize; + } + else if (elementType === BSON_DATA_CODE_W_SCOPE) { + const totalSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (totalSize < 4 + 4 + 4 + 1) { + throw new BSONError('code_w_scope total size shorter minimum expected length'); + } + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + const scopeObject = deserializeObject(buffer, _index, options, false); + index = index + objectSize; + if (totalSize < 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too short, truncating scope'); + } + if (totalSize > 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too long, clips outer document'); + } + value = new Code(functionString, scopeObject); + } + else if (elementType === BSON_DATA_DBPOINTER) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) + throw new BSONError('bad string length in bson'); + const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const oidBuffer = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oidBuffer[i] = buffer[index + i]; + const oid = new ObjectId(oidBuffer); + index = index + 12; + value = new DBRef(namespace, oid); + } + else { + throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`); + } + if (name === '__proto__') { + Object.defineProperty(object, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + object[name] = value; + } + } + if (size !== index - startIndex) { + if (isArray) + throw new BSONError('corrupt array bson'); + throw new BSONError('corrupt object bson'); + } + if (!isPossibleDBRef) + return object; + if (isDBRefLike(object)) { + const copy = Object.assign({}, object); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(object.$ref, object.$id, object.$db, copy); + } + return object; +} + +const regexp = /\x00/; +const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']); +function serializeString(buffer, key, value, index) { + buffer[index++] = BSON_DATA_STRING; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes + 1; + buffer[index - 1] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4); + NumberUtils.setInt32LE(buffer, index, size + 1); + index = index + 4 + size; + buffer[index++] = 0; + return index; +} +function serializeNumber(buffer, key, value, index) { + const isNegativeZero = Object.is(value, -0); + const type = !isNegativeZero && + Number.isSafeInteger(value) && + value <= BSON_INT32_MAX && + value >= BSON_INT32_MIN + ? BSON_DATA_INT + : BSON_DATA_NUMBER; + buffer[index++] = type; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0x00; + if (type === BSON_DATA_INT) { + index += NumberUtils.setInt32LE(buffer, index, value); + } + else { + index += NumberUtils.setFloat64LE(buffer, index, value); + } + return index; +} +function serializeBigInt(buffer, key, value, index) { + buffer[index++] = BSON_DATA_LONG; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index += numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setBigInt64LE(buffer, index, value); + return index; +} +function serializeNull(buffer, key, _, index) { + buffer[index++] = BSON_DATA_NULL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeBoolean(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BOOLEAN; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + buffer[index++] = value ? 1 : 0; + return index; +} +function serializeDate(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DATE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const dateInMilis = Long.fromNumber(value.getTime()); + const lowBits = dateInMilis.getLowBits(); + const highBits = dateInMilis.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.source && value.source.match(regexp) != null) { + throw new BSONError('value ' + value.source + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index); + buffer[index++] = 0x00; + if (value.ignoreCase) + buffer[index++] = 0x69; + if (value.global) + buffer[index++] = 0x73; + if (value.multiline) + buffer[index++] = 0x6d; + buffer[index++] = 0x00; + return index; +} +function serializeBSONRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.pattern.match(regexp) != null) { + throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index); + buffer[index++] = 0x00; + const sortedOptions = value.options.split('').sort().join(''); + index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index); + buffer[index++] = 0x00; + return index; +} +function serializeMinMax(buffer, key, value, index) { + if (value === null) { + buffer[index++] = BSON_DATA_NULL; + } + else if (value._bsontype === 'MinKey') { + buffer[index++] = BSON_DATA_MIN_KEY; + } + else { + buffer[index++] = BSON_DATA_MAX_KEY; + } + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeObjectId(buffer, key, value, index) { + buffer[index++] = BSON_DATA_OID; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += value.serializeInto(buffer, index); + return index; +} +function serializeBuffer(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = value.length; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT; + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = value[i]; + } + else { + buffer.set(value, index); + } + index = index + size; + return index; +} +function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) { + if (path.has(value)) { + throw new BSONError('Cannot convert circular structure to BSON'); + } + path.add(value); + buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + path.delete(value); + return endIndex; +} +function serializeDecimal128(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DECIMAL128; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + for (let i = 0; i < 16; i++) + buffer[index + i] = value.bytes[i]; + return index + 16; +} +function serializeLong(buffer, key, value, index) { + buffer[index++] = + value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const lowBits = value.getLowBits(); + const highBits = value.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeInt32(buffer, key, value, index) { + value = value.valueOf(); + buffer[index++] = BSON_DATA_INT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setInt32LE(buffer, index, value); + return index; +} +function serializeDouble(buffer, key, value, index) { + buffer[index++] = BSON_DATA_NUMBER; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setFloat64LE(buffer, index, value.value); + return index; +} +function serializeFunction(buffer, key, value, index) { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) { + if (value.scope && typeof value.scope === 'object') { + buffer[index++] = BSON_DATA_CODE_W_SCOPE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + const functionString = value.code; + index = index + 4; + const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, codeSize); + buffer[index + 4 + codeSize - 1] = 0; + index = index + codeSize + 4; + const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + index = endIndex - 1; + const totalSize = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize); + buffer[index++] = 0; + } + else { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.code.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + } + return index; +} +function serializeBinary(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const data = value.buffer; + let size = value.position; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) + size = size + 4; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = value.sub_type; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + size = size - 4; + index += NumberUtils.setInt32LE(buffer, index, size); + } + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = data[i]; + } + else { + buffer.set(data, index); + } + index = index + value.position; + return index; +} +function serializeSymbol(buffer, key, value, index) { + buffer[index++] = BSON_DATA_SYMBOL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) { + buffer[index++] = BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + let output = { + $ref: value.collection || value.namespace, + $id: value.oid + }; + if (value.db != null) { + output.$db = value.db; + } + output = Object.assign(output, value.fields); + const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path); + const size = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, index, size); + return endIndex; +} +function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) { + if (path == null) { + if (object == null) { + buffer[0] = 0x05; + buffer[1] = 0x00; + buffer[2] = 0x00; + buffer[3] = 0x00; + buffer[4] = 0x00; + return 5; + } + if (Array.isArray(object)) { + throw new BSONError('serialize does not support an array as the root input'); + } + if (typeof object !== 'object') { + throw new BSONError('serialize does not support non-object as the root input'); + } + else if ('_bsontype' in object && typeof object._bsontype === 'string') { + throw new BSONError(`BSON types cannot be serialized as a document`); + } + else if (isDate(object) || + isRegExp(object) || + isUint8Array(object) || + isAnyArrayBuffer(object)) { + throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`); + } + path = new Set(); + } + path.add(object); + let index = startingIndex + 4; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + const key = `${i}`; + let value = object[i]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + if (typeof value === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (typeof value === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (typeof value === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (typeof value === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (typeof value === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else if (object instanceof Map || isMap(object)) { + const iterator = object.entries(); + let done = false; + while (!done) { + const entry = iterator.next(); + done = !!entry.done; + if (done) + continue; + const key = entry.value[0]; + let value = entry.value[1]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === null || (value === undefined && ignoreUndefined === false)) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + if (object != null && typeof object !== 'object') { + throw new BSONError('toBSON function did not return an object'); + } + } + for (const key of Object.keys(object)) { + let value = object[key]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + if (ignoreUndefined === false) + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + path.delete(object); + buffer[index++] = 0x00; + const size = index - startingIndex; + startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size); + return index; +} + +function isBSONType(value) { + return (value != null && + typeof value === 'object' && + '_bsontype' in value && + typeof value._bsontype === 'string'); +} +const keysToCodecs = { + $oid: ObjectId, + $binary: Binary, + $uuid: Binary, + $symbol: BSONSymbol, + $numberInt: Int32, + $numberDecimal: Decimal128, + $numberDouble: Double, + $numberLong: Long, + $minKey: MinKey, + $maxKey: MaxKey, + $regex: BSONRegExp, + $regularExpression: BSONRegExp, + $timestamp: Timestamp +}; +function deserializeValue(value, options = {}) { + if (typeof value === 'number') { + const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN; + const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN; + if (options.relaxed || options.legacy) { + return value; + } + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (in32BitRange) { + return new Int32(value); + } + if (in64BitRange) { + if (options.useBigInt64) { + return BigInt(value); + } + return Long.fromNumber(value); + } + } + return new Double(value); + } + if (value == null || typeof value !== 'object') + return value; + if (value.$undefined) + return null; + const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null); + for (let i = 0; i < keys.length; i++) { + const c = keysToCodecs[keys[i]]; + if (c) + return c.fromExtendedJSON(value, options); + } + if (value.$date != null) { + const d = value.$date; + const date = new Date(); + if (options.legacy) { + if (typeof d === 'number') + date.setTime(d); + else if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + else { + if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (Long.isLong(d)) + date.setTime(d.toNumber()); + else if (typeof d === 'number' && options.relaxed) + date.setTime(d); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + return date; + } + if (value.$code != null) { + const copy = Object.assign({}, value); + if (value.$scope) { + copy.$scope = deserializeValue(value.$scope); + } + return Code.fromExtendedJSON(value); + } + if (isDBRefLike(value) || value.$dbPointer) { + const v = value.$ref ? value : value.$dbPointer; + if (v instanceof DBRef) + return v; + const dollarKeys = Object.keys(v).filter(k => k.startsWith('$')); + let valid = true; + dollarKeys.forEach(k => { + if (['$ref', '$id', '$db'].indexOf(k) === -1) + valid = false; + }); + if (valid) + return DBRef.fromExtendedJSON(v); + } + return value; +} +function serializeArray(array, options) { + return array.map((v, index) => { + options.seenObjects.push({ propertyName: `index ${index}`, obj: null }); + try { + return serializeValue(v, options); + } + finally { + options.seenObjects.pop(); + } + }); +} +function getISOString(date) { + const isoStr = date.toISOString(); + return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z'; +} +function serializeValue(value, options) { + if (value instanceof Map || isMap(value)) { + const obj = Object.create(null); + for (const [k, v] of value) { + if (typeof k !== 'string') { + throw new BSONError('Can only serialize maps with string keys'); + } + obj[k] = v; + } + return serializeValue(obj, options); + } + if ((typeof value === 'object' || typeof value === 'function') && value !== null) { + const index = options.seenObjects.findIndex(entry => entry.obj === value); + if (index !== -1) { + const props = options.seenObjects.map(entry => entry.propertyName); + const leadingPart = props + .slice(0, index) + .map(prop => `${prop} -> `) + .join(''); + const alreadySeen = props[index]; + const circularPart = ' -> ' + + props + .slice(index + 1, props.length - 1) + .map(prop => `${prop} -> `) + .join(''); + const current = props[props.length - 1]; + const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2); + const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1); + throw new BSONError('Converting circular structure to EJSON:\n' + + ` ${leadingPart}${alreadySeen}${circularPart}${current}\n` + + ` ${leadingSpace}\\${dashes}/`); + } + options.seenObjects[options.seenObjects.length - 1].obj = value; + } + if (Array.isArray(value)) + return serializeArray(value, options); + if (value === undefined) + return null; + if (value instanceof Date || isDate(value)) { + const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000; + if (options.legacy) { + return options.relaxed && inRange + ? { $date: value.getTime() } + : { $date: getISOString(value) }; + } + return options.relaxed && inRange + ? { $date: getISOString(value) } + : { $date: { $numberLong: value.getTime().toString() } }; + } + if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) { + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return { $numberInt: value.toString() }; + } + if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) { + return { $numberLong: value.toString() }; + } + } + return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() }; + } + if (typeof value === 'bigint') { + if (!options.relaxed) { + return { $numberLong: BigInt.asIntN(64, value).toString() }; + } + return Number(BigInt.asIntN(64, value)); + } + if (value instanceof RegExp || isRegExp(value)) { + let flags = value.flags; + if (flags === undefined) { + const match = value.toString().match(/[gimuy]*$/); + if (match) { + flags = match[0]; + } + } + const rx = new BSONRegExp(value.source, flags); + return rx.toExtendedJSON(options); + } + if (value != null && typeof value === 'object') + return serializeDocument(value, options); + return value; +} +const BSON_TYPE_MAPPINGS = { + Binary: (o) => new Binary(o.value(), o.sub_type), + Code: (o) => new Code(o.code, o.scope), + DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), + Decimal128: (o) => new Decimal128(o.bytes), + Double: (o) => new Double(o.value), + Int32: (o) => new Int32(o.value), + Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_), + MaxKey: () => new MaxKey(), + MinKey: () => new MinKey(), + ObjectId: (o) => new ObjectId(o), + BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options), + BSONSymbol: (o) => new BSONSymbol(o.value), + Timestamp: (o) => Timestamp.fromBits(o.low, o.high) +}; +function serializeDocument(doc, options) { + if (doc == null || typeof doc !== 'object') + throw new BSONError('not an object instance'); + const bsontype = doc._bsontype; + if (typeof bsontype === 'undefined') { + const _doc = {}; + for (const name of Object.keys(doc)) { + options.seenObjects.push({ propertyName: name, obj: null }); + try { + const value = serializeValue(doc[name], options); + if (name === '__proto__') { + Object.defineProperty(_doc, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + _doc[name] = value; + } + } + finally { + options.seenObjects.pop(); + } + } + return _doc; + } + else if (doc != null && + typeof doc === 'object' && + typeof doc._bsontype === 'string' && + doc[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (isBSONType(doc)) { + let outDoc = doc; + if (typeof outDoc.toExtendedJSON !== 'function') { + const mapper = BSON_TYPE_MAPPINGS[doc._bsontype]; + if (!mapper) { + throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype); + } + outDoc = mapper(outDoc); + } + if (bsontype === 'Code' && outDoc.scope) { + outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options)); + } + else if (bsontype === 'DBRef' && outDoc.oid) { + outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options)); + } + return outDoc.toExtendedJSON(options); + } + else { + throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype); + } +} +function parse(text, options) { + const ejsonOptions = { + useBigInt64: options?.useBigInt64 ?? false, + relaxed: options?.relaxed ?? true, + legacy: options?.legacy ?? false + }; + return JSON.parse(text, (key, value) => { + if (key.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`); + } + return deserializeValue(value, ejsonOptions); + }); +} +function stringify(value, replacer, space, options) { + if (space != null && typeof space === 'object') { + options = space; + space = 0; + } + if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) { + options = replacer; + replacer = undefined; + space = 0; + } + const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, { + seenObjects: [{ propertyName: '(root)', obj: null }] + }); + const doc = serializeValue(value, serializeOptions); + return JSON.stringify(doc, replacer, space); +} +function EJSONserialize(value, options) { + options = options || {}; + return JSON.parse(stringify(value, options)); +} +function EJSONdeserialize(ejson, options) { + options = options || {}; + return parse(JSON.stringify(ejson), options); +} +const EJSON = Object.create(null); +EJSON.parse = parse; +EJSON.stringify = stringify; +EJSON.serialize = EJSONserialize; +EJSON.deserialize = EJSONdeserialize; +Object.freeze(EJSON); + +function getSize(source, offset) { + try { + return NumberUtils.getNonnegativeInt32LE(source, offset); + } + catch (cause) { + throw new BSONOffsetError('BSON size cannot be negative', offset, { cause }); + } +} +function findNull(bytes, offset) { + let nullTerminatorOffset = offset; + for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++) + ; + if (nullTerminatorOffset === bytes.length - 1) { + throw new BSONOffsetError('Null terminator not found', offset); + } + return nullTerminatorOffset; +} +function parseToElements(bytes, startOffset = 0) { + startOffset ??= 0; + if (bytes.length < 5) { + throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset); + } + const documentSize = getSize(bytes, startOffset); + if (documentSize > bytes.length - startOffset) { + throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset); + } + if (bytes[startOffset + documentSize - 1] !== 0x00) { + throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize); + } + const elements = []; + let offset = startOffset + 4; + while (offset <= documentSize + startOffset) { + const type = bytes[offset]; + offset += 1; + if (type === 0) { + if (offset - startOffset !== documentSize) { + throw new BSONOffsetError(`Invalid 0x00 type byte`, offset); + } + break; + } + const nameOffset = offset; + const nameLength = findNull(bytes, offset) - nameOffset; + offset += nameLength + 1; + let length; + if (type === 1 || + type === 18 || + type === 9 || + type === 17) { + length = 8; + } + else if (type === 16) { + length = 4; + } + else if (type === 7) { + length = 12; + } + else if (type === 19) { + length = 16; + } + else if (type === 8) { + length = 1; + } + else if (type === 10 || + type === 6 || + type === 127 || + type === 255) { + length = 0; + } + else if (type === 11) { + length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset; + } + else if (type === 3 || + type === 4 || + type === 15) { + length = getSize(bytes, offset); + } + else if (type === 2 || + type === 5 || + type === 12 || + type === 13 || + type === 14) { + length = getSize(bytes, offset) + 4; + if (type === 5) { + length += 1; + } + if (type === 12) { + length += 12; + } + } + else { + throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset); + } + if (length > documentSize) { + throw new BSONOffsetError('value reports length larger than document', offset); + } + elements.push([type, nameOffset, nameLength, offset, length]); + offset += length; + } + return elements; +} + +const onDemand = Object.create(null); +onDemand.parseToElements = parseToElements; +onDemand.ByteUtils = ByteUtils; +onDemand.NumberUtils = NumberUtils; +Object.freeze(onDemand); + +const MAXSIZE = 1024 * 1024 * 17; +let buffer = ByteUtils.allocate(MAXSIZE); +function setInternalBufferSize(size) { + if (buffer.length < size) { + buffer = ByteUtils.allocate(size); + } +} +function serialize(object, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE; + if (buffer.length < minInternalBufferSize) { + buffer = ByteUtils.allocate(minInternalBufferSize); + } + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex); + finishedBuffer.set(buffer.subarray(0, serializationIndex), 0); + return finishedBuffer; +} +function serializeWithBufferAndIndex(object, finalBuffer, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const startIndex = typeof options.index === 'number' ? options.index : 0; + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex); + return startIndex + serializationIndex - 1; +} +function deserialize(buffer, options = {}) { + return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options); +} +function calculateObjectSize(object, options = {}) { + options = options || {}; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined); +} +function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) { + const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options); + const bufferData = ByteUtils.toLocalBufferType(data); + let index = startIndex; + for (let i = 0; i < numberOfDocuments; i++) { + const size = NumberUtils.getInt32LE(bufferData, index); + internalOptions.index = index; + documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions); + index = index + size; + } + return index; +} + +var bson = /*#__PURE__*/Object.freeze({ + __proto__: null, + BSONError: BSONError, + BSONOffsetError: BSONOffsetError, + BSONRegExp: BSONRegExp, + BSONRuntimeError: BSONRuntimeError, + BSONSymbol: BSONSymbol, + BSONType: BSONType, + BSONValue: BSONValue, + BSONVersionError: BSONVersionError, + Binary: Binary, + Code: Code, + DBRef: DBRef, + Decimal128: Decimal128, + Double: Double, + EJSON: EJSON, + Int32: Int32, + Long: Long, + MaxKey: MaxKey, + MinKey: MinKey, + ObjectId: ObjectId, + Timestamp: Timestamp, + UUID: UUID, + calculateObjectSize: calculateObjectSize, + deserialize: deserialize, + deserializeStream: deserializeStream, + onDemand: onDemand, + serialize: serialize, + serializeWithBufferAndIndex: serializeWithBufferAndIndex, + setInternalBufferSize: setInternalBufferSize +}); + +exports.BSON = bson; +exports.BSONError = BSONError; +exports.BSONOffsetError = BSONOffsetError; +exports.BSONRegExp = BSONRegExp; +exports.BSONRuntimeError = BSONRuntimeError; +exports.BSONSymbol = BSONSymbol; +exports.BSONType = BSONType; +exports.BSONValue = BSONValue; +exports.BSONVersionError = BSONVersionError; +exports.Binary = Binary; +exports.Code = Code; +exports.DBRef = DBRef; +exports.Decimal128 = Decimal128; +exports.Double = Double; +exports.EJSON = EJSON; +exports.Int32 = Int32; +exports.Long = Long; +exports.MaxKey = MaxKey; +exports.MinKey = MinKey; +exports.ObjectId = ObjectId; +exports.Timestamp = Timestamp; +exports.UUID = UUID; +exports.calculateObjectSize = calculateObjectSize; +exports.deserialize = deserialize; +exports.deserializeStream = deserializeStream; +exports.onDemand = onDemand; +exports.serialize = serialize; +exports.serializeWithBufferAndIndex = serializeWithBufferAndIndex; +exports.setInternalBufferSize = setInternalBufferSize; +//# sourceMappingURL=bson.cjs.map diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.cjs.map b/week-3/04-course-app-hard/node_modules/bson/lib/bson.cjs.map new file mode 100644 index 000000000..15f5a813e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.cjs.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.mjs b/week-3/04-course-app-hard/node_modules/bson/lib/bson.mjs new file mode 100644 index 000000000..c4ab0982f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.mjs @@ -0,0 +1,4387 @@ +function isAnyArrayBuffer(value) { + return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes(Object.prototype.toString.call(value)); +} +function isUint8Array(value) { + return Object.prototype.toString.call(value) === '[object Uint8Array]'; +} +function isRegExp(d) { + return Object.prototype.toString.call(d) === '[object RegExp]'; +} +function isMap(d) { + return Object.prototype.toString.call(d) === '[object Map]'; +} +function isDate(d) { + return Object.prototype.toString.call(d) === '[object Date]'; +} +function defaultInspect(x, _options) { + return JSON.stringify(x, (k, v) => { + if (typeof v === 'bigint') { + return { $numberLong: `${v}` }; + } + else if (isMap(v)) { + return Object.fromEntries(v); + } + return v; + }); +} +function getStylizeFunction(options) { + const stylizeExists = options != null && + typeof options === 'object' && + 'stylize' in options && + typeof options.stylize === 'function'; + if (stylizeExists) { + return options.stylize; + } +} + +const BSON_MAJOR_VERSION = 6; +const BSON_INT32_MAX = 0x7fffffff; +const BSON_INT32_MIN = -0x80000000; +const BSON_INT64_MAX = Math.pow(2, 63) - 1; +const BSON_INT64_MIN = -Math.pow(2, 63); +const JS_INT_MAX = Math.pow(2, 53); +const JS_INT_MIN = -Math.pow(2, 53); +const BSON_DATA_NUMBER = 1; +const BSON_DATA_STRING = 2; +const BSON_DATA_OBJECT = 3; +const BSON_DATA_ARRAY = 4; +const BSON_DATA_BINARY = 5; +const BSON_DATA_UNDEFINED = 6; +const BSON_DATA_OID = 7; +const BSON_DATA_BOOLEAN = 8; +const BSON_DATA_DATE = 9; +const BSON_DATA_NULL = 10; +const BSON_DATA_REGEXP = 11; +const BSON_DATA_DBPOINTER = 12; +const BSON_DATA_CODE = 13; +const BSON_DATA_SYMBOL = 14; +const BSON_DATA_CODE_W_SCOPE = 15; +const BSON_DATA_INT = 16; +const BSON_DATA_TIMESTAMP = 17; +const BSON_DATA_LONG = 18; +const BSON_DATA_DECIMAL128 = 19; +const BSON_DATA_MIN_KEY = 0xff; +const BSON_DATA_MAX_KEY = 0x7f; +const BSON_BINARY_SUBTYPE_DEFAULT = 0; +const BSON_BINARY_SUBTYPE_UUID_NEW = 4; +const BSONType = Object.freeze({ + double: 1, + string: 2, + object: 3, + array: 4, + binData: 5, + undefined: 6, + objectId: 7, + bool: 8, + date: 9, + null: 10, + regex: 11, + dbPointer: 12, + javascript: 13, + symbol: 14, + javascriptWithScope: 15, + int: 16, + timestamp: 17, + long: 18, + decimal: 19, + minKey: -1, + maxKey: 127 +}); + +class BSONError extends Error { + get bsonError() { + return true; + } + get name() { + return 'BSONError'; + } + constructor(message, options) { + super(message, options); + } + static isBSONError(value) { + return (value != null && + typeof value === 'object' && + 'bsonError' in value && + value.bsonError === true && + 'name' in value && + 'message' in value && + 'stack' in value); + } +} +class BSONVersionError extends BSONError { + get name() { + return 'BSONVersionError'; + } + constructor() { + super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`); + } +} +class BSONRuntimeError extends BSONError { + get name() { + return 'BSONRuntimeError'; + } + constructor(message) { + super(message); + } +} +class BSONOffsetError extends BSONError { + get name() { + return 'BSONOffsetError'; + } + constructor(message, offset, options) { + super(`${message}. offset: ${offset}`, options); + this.offset = offset; + } +} + +let TextDecoderFatal; +let TextDecoderNonFatal; +function parseUtf8(buffer, start, end, fatal) { + if (fatal) { + TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true }); + try { + return TextDecoderFatal.decode(buffer.subarray(start, end)); + } + catch (cause) { + throw new BSONError('Invalid UTF-8 string in BSON document', { cause }); + } + } + TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false }); + return TextDecoderNonFatal.decode(buffer.subarray(start, end)); +} + +function tryReadBasicLatin(uint8array, start, end) { + if (uint8array.length === 0) { + return ''; + } + const stringByteLength = end - start; + if (stringByteLength === 0) { + return ''; + } + if (stringByteLength > 20) { + return null; + } + if (stringByteLength === 1 && uint8array[start] < 128) { + return String.fromCharCode(uint8array[start]); + } + if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) { + return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]); + } + if (stringByteLength === 3 && + uint8array[start] < 128 && + uint8array[start + 1] < 128 && + uint8array[start + 2] < 128) { + return (String.fromCharCode(uint8array[start]) + + String.fromCharCode(uint8array[start + 1]) + + String.fromCharCode(uint8array[start + 2])); + } + const latinBytes = []; + for (let i = start; i < end; i++) { + const byte = uint8array[i]; + if (byte > 127) { + return null; + } + latinBytes.push(byte); + } + return String.fromCharCode(...latinBytes); +} +function tryWriteBasicLatin(destination, source, offset) { + if (source.length === 0) + return 0; + if (source.length > 25) + return null; + if (destination.length - offset < source.length) + return null; + for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) { + const char = source.charCodeAt(charOffset); + if (char > 127) + return null; + destination[destinationOffset] = char; + } + return source.length; +} + +function nodejsMathRandomBytes(byteLength) { + return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const nodejsRandomBytes = await (async () => { + try { + return (await import('crypto')).randomBytes; + } + catch { + return nodejsMathRandomBytes; + } +})(); +const nodeJsByteUtils = { + toLocalBufferType(potentialBuffer) { + if (Buffer.isBuffer(potentialBuffer)) { + return potentialBuffer; + } + if (ArrayBuffer.isView(potentialBuffer)) { + return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength); + } + const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer); + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return Buffer.from(potentialBuffer); + } + throw new BSONError(`Cannot create Buffer from ${String(potentialBuffer)}`); + }, + allocate(size) { + return Buffer.alloc(size); + }, + allocateUnsafe(size) { + return Buffer.allocUnsafe(size); + }, + equals(a, b) { + return nodeJsByteUtils.toLocalBufferType(a).equals(b); + }, + fromNumberArray(array) { + return Buffer.from(array); + }, + fromBase64(base64) { + return Buffer.from(base64, 'base64'); + }, + toBase64(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64'); + }, + fromISO88591(codePoints) { + return Buffer.from(codePoints, 'binary'); + }, + toISO88591(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary'); + }, + fromHex(hex) { + return Buffer.from(hex, 'hex'); + }, + toHex(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex'); + }, + toUTF8(buffer, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end); + if (fatal) { + for (let i = 0; i < string.length; i++) { + if (string.charCodeAt(i) === 0xfffd) { + parseUtf8(buffer, start, end, true); + break; + } + } + } + return string; + }, + utf8ByteLength(input) { + return Buffer.byteLength(input, 'utf8'); + }, + encodeUTF8Into(buffer, source, byteOffset) { + const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset); + if (latinBytesWritten != null) { + return latinBytesWritten; + } + return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8'); + }, + randomBytes: nodejsRandomBytes +}; + +function isReactNative() { + const { navigator } = globalThis; + return typeof navigator === 'object' && navigator.product === 'ReactNative'; +} +function webMathRandomBytes(byteLength) { + if (byteLength < 0) { + throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`); + } + return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const webRandomBytes = (() => { + const { crypto } = globalThis; + if (crypto != null && typeof crypto.getRandomValues === 'function') { + return (byteLength) => { + return crypto.getRandomValues(webByteUtils.allocate(byteLength)); + }; + } + else { + if (isReactNative()) { + const { console } = globalThis; + console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'); + } + return webMathRandomBytes; + } +})(); +const HEX_DIGIT = /(\d|[a-f])/i; +const webByteUtils = { + toLocalBufferType(potentialUint8array) { + const stringTag = potentialUint8array?.[Symbol.toStringTag] ?? + Object.prototype.toString.call(potentialUint8array); + if (stringTag === 'Uint8Array') { + return potentialUint8array; + } + if (ArrayBuffer.isView(potentialUint8array)) { + return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength)); + } + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return new Uint8Array(potentialUint8array); + } + throw new BSONError(`Cannot make a Uint8Array from ${String(potentialUint8array)}`); + }, + allocate(size) { + if (typeof size !== 'number') { + throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`); + } + return new Uint8Array(size); + }, + allocateUnsafe(size) { + return webByteUtils.allocate(size); + }, + equals(a, b) { + if (a.byteLength !== b.byteLength) { + return false; + } + for (let i = 0; i < a.byteLength; i++) { + if (a[i] !== b[i]) { + return false; + } + } + return true; + }, + fromNumberArray(array) { + return Uint8Array.from(array); + }, + fromBase64(base64) { + return Uint8Array.from(atob(base64), c => c.charCodeAt(0)); + }, + toBase64(uint8array) { + return btoa(webByteUtils.toISO88591(uint8array)); + }, + fromISO88591(codePoints) { + return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff); + }, + toISO88591(uint8array) { + return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join(''); + }, + fromHex(hex) { + const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1); + const buffer = []; + for (let i = 0; i < evenLengthHex.length; i += 2) { + const firstDigit = evenLengthHex[i]; + const secondDigit = evenLengthHex[i + 1]; + if (!HEX_DIGIT.test(firstDigit)) { + break; + } + if (!HEX_DIGIT.test(secondDigit)) { + break; + } + const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16); + buffer.push(hexDigit); + } + return Uint8Array.from(buffer); + }, + toHex(uint8array) { + return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join(''); + }, + toUTF8(uint8array, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + return parseUtf8(uint8array, start, end, fatal); + }, + utf8ByteLength(input) { + return new TextEncoder().encode(input).byteLength; + }, + encodeUTF8Into(uint8array, source, byteOffset) { + const bytes = new TextEncoder().encode(source); + uint8array.set(bytes, byteOffset); + return bytes.byteLength; + }, + randomBytes: webRandomBytes +}; + +const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true; +const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils; + +class BSONValue { + get [Symbol.for('@@mdb.bson.version')]() { + return BSON_MAJOR_VERSION; + } + [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) { + return this.inspect(depth, options, inspect); + } +} + +class Binary extends BSONValue { + get _bsontype() { + return 'Binary'; + } + constructor(buffer, subType) { + super(); + if (!(buffer == null) && + typeof buffer === 'string' && + !ArrayBuffer.isView(buffer) && + !isAnyArrayBuffer(buffer) && + !Array.isArray(buffer)) { + throw new BSONError('Binary can only be constructed from Uint8Array or number[]'); + } + this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT; + if (buffer == null) { + this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE); + this.position = 0; + } + else { + this.buffer = Array.isArray(buffer) + ? ByteUtils.fromNumberArray(buffer) + : ByteUtils.toLocalBufferType(buffer); + this.position = this.buffer.byteLength; + } + } + put(byteValue) { + if (typeof byteValue === 'string' && byteValue.length !== 1) { + throw new BSONError('only accepts single character String'); + } + else if (typeof byteValue !== 'number' && byteValue.length !== 1) + throw new BSONError('only accepts single character Uint8Array or Array'); + let decodedByte; + if (typeof byteValue === 'string') { + decodedByte = byteValue.charCodeAt(0); + } + else if (typeof byteValue === 'number') { + decodedByte = byteValue; + } + else { + decodedByte = byteValue[0]; + } + if (decodedByte < 0 || decodedByte > 255) { + throw new BSONError('only accepts number in a valid unsigned byte range 0-255'); + } + if (this.buffer.byteLength > this.position) { + this.buffer[this.position++] = decodedByte; + } + else { + const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + this.buffer[this.position++] = decodedByte; + } + } + write(sequence, offset) { + offset = typeof offset === 'number' ? offset : this.position; + if (this.buffer.byteLength < offset + sequence.length) { + const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + } + if (ArrayBuffer.isView(sequence)) { + this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset); + this.position = + offset + sequence.byteLength > this.position ? offset + sequence.length : this.position; + } + else if (typeof sequence === 'string') { + throw new BSONError('input cannot be string'); + } + } + read(position, length) { + length = length && length > 0 ? length : this.position; + return this.buffer.slice(position, position + length); + } + value() { + return this.buffer.length === this.position + ? this.buffer + : this.buffer.subarray(0, this.position); + } + length() { + return this.position; + } + toJSON() { + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.buffer.subarray(0, this.position)); + if (encoding === 'base64') + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + if (encoding === 'utf8' || encoding === 'utf-8') + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + } + toExtendedJSON(options) { + options = options || {}; + const base64String = ByteUtils.toBase64(this.buffer); + const subType = Number(this.sub_type).toString(16); + if (options.legacy) { + return { + $binary: base64String, + $type: subType.length === 1 ? '0' + subType : subType + }; + } + return { + $binary: { + base64: base64String, + subType: subType.length === 1 ? '0' + subType : subType + } + }; + } + toUUID() { + if (this.sub_type === Binary.SUBTYPE_UUID) { + return new UUID(this.buffer.slice(0, this.position)); + } + throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`); + } + static createFromHexString(hex, subType) { + return new Binary(ByteUtils.fromHex(hex), subType); + } + static createFromBase64(base64, subType) { + return new Binary(ByteUtils.fromBase64(base64), subType); + } + static fromExtendedJSON(doc, options) { + options = options || {}; + let data; + let type; + if ('$binary' in doc) { + if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) { + type = doc.$type ? parseInt(doc.$type, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary); + } + else { + if (typeof doc.$binary !== 'string') { + type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary.base64); + } + } + } + else if ('$uuid' in doc) { + type = 4; + data = UUID.bytesFromString(doc.$uuid); + } + if (!data) { + throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`); + } + return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + const base64Arg = inspect(base64, options); + const subTypeArg = inspect(this.sub_type, options); + return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`; + } +} +Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0; +Binary.BUFFER_SIZE = 256; +Binary.SUBTYPE_DEFAULT = 0; +Binary.SUBTYPE_FUNCTION = 1; +Binary.SUBTYPE_BYTE_ARRAY = 2; +Binary.SUBTYPE_UUID_OLD = 3; +Binary.SUBTYPE_UUID = 4; +Binary.SUBTYPE_MD5 = 5; +Binary.SUBTYPE_ENCRYPTED = 6; +Binary.SUBTYPE_COLUMN = 7; +Binary.SUBTYPE_SENSITIVE = 8; +Binary.SUBTYPE_USER_DEFINED = 128; +const UUID_BYTE_LENGTH = 16; +const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i; +const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i; +class UUID extends Binary { + constructor(input) { + let bytes; + if (input == null) { + bytes = UUID.generate(); + } + else if (input instanceof UUID) { + bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer)); + } + else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) { + bytes = ByteUtils.toLocalBufferType(input); + } + else if (typeof input === 'string') { + bytes = UUID.bytesFromString(input); + } + else { + throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'); + } + super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW); + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + } + toHexString(includeDashes = true) { + if (includeDashes) { + return [ + ByteUtils.toHex(this.buffer.subarray(0, 4)), + ByteUtils.toHex(this.buffer.subarray(4, 6)), + ByteUtils.toHex(this.buffer.subarray(6, 8)), + ByteUtils.toHex(this.buffer.subarray(8, 10)), + ByteUtils.toHex(this.buffer.subarray(10, 16)) + ].join('-'); + } + return ByteUtils.toHex(this.buffer); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.id); + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + equals(otherId) { + if (!otherId) { + return false; + } + if (otherId instanceof UUID) { + return ByteUtils.equals(otherId.id, this.id); + } + try { + return ByteUtils.equals(new UUID(otherId).id, this.id); + } + catch { + return false; + } + } + toBinary() { + return new Binary(this.id, Binary.SUBTYPE_UUID); + } + static generate() { + const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH); + bytes[6] = (bytes[6] & 0x0f) | 0x40; + bytes[8] = (bytes[8] & 0x3f) | 0x80; + return bytes; + } + static isValid(input) { + if (!input) { + return false; + } + if (typeof input === 'string') { + return UUID.isValidUUIDString(input); + } + if (isUint8Array(input)) { + return input.byteLength === UUID_BYTE_LENGTH; + } + return (input._bsontype === 'Binary' && + input.sub_type === this.SUBTYPE_UUID && + input.buffer.byteLength === 16); + } + static createFromHexString(hexString) { + const buffer = UUID.bytesFromString(hexString); + return new UUID(buffer); + } + static createFromBase64(base64) { + return new UUID(ByteUtils.fromBase64(base64)); + } + static bytesFromString(representation) { + if (!UUID.isValidUUIDString(representation)) { + throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation'); + } + return ByteUtils.fromHex(representation.replace(/-/g, '')); + } + static isValidUUIDString(representation) { + return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new UUID(${inspect(this.toHexString(), options)})`; + } +} + +class Code extends BSONValue { + get _bsontype() { + return 'Code'; + } + constructor(code, scope) { + super(); + this.code = code.toString(); + this.scope = scope ?? null; + } + toJSON() { + if (this.scope != null) { + return { code: this.code, scope: this.scope }; + } + return { code: this.code }; + } + toExtendedJSON() { + if (this.scope) { + return { $code: this.code, $scope: this.scope }; + } + return { $code: this.code }; + } + static fromExtendedJSON(doc) { + return new Code(doc.$code, doc.$scope); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + let parametersString = inspect(this.code, options); + const multiLineFn = parametersString.includes('\n'); + if (this.scope != null) { + parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`; + } + const endingNewline = multiLineFn && this.scope === null; + return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`; + } +} + +function isDBRefLike(value) { + return (value != null && + typeof value === 'object' && + '$id' in value && + value.$id != null && + '$ref' in value && + typeof value.$ref === 'string' && + (!('$db' in value) || ('$db' in value && typeof value.$db === 'string'))); +} +class DBRef extends BSONValue { + get _bsontype() { + return 'DBRef'; + } + constructor(collection, oid, db, fields) { + super(); + const parts = collection.split('.'); + if (parts.length === 2) { + db = parts.shift(); + collection = parts.shift(); + } + this.collection = collection; + this.oid = oid; + this.db = db; + this.fields = fields || {}; + } + get namespace() { + return this.collection; + } + set namespace(value) { + this.collection = value; + } + toJSON() { + const o = Object.assign({ + $ref: this.collection, + $id: this.oid + }, this.fields); + if (this.db != null) + o.$db = this.db; + return o; + } + toExtendedJSON(options) { + options = options || {}; + let o = { + $ref: this.collection, + $id: this.oid + }; + if (options.legacy) { + return o; + } + if (this.db) + o.$db = this.db; + o = Object.assign(o, this.fields); + return o; + } + static fromExtendedJSON(doc) { + const copy = Object.assign({}, doc); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(doc.$ref, doc.$id, doc.$db, copy); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const args = [ + inspect(this.namespace, options), + inspect(this.oid, options), + ...(this.db ? [inspect(this.db, options)] : []), + ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : []) + ]; + args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1]; + return `new DBRef(${args.join(', ')})`; + } +} + +function removeLeadingZerosAndExplicitPlus(str) { + if (str === '') { + return str; + } + let startIndex = 0; + const isNegative = str[startIndex] === '-'; + const isExplicitlyPositive = str[startIndex] === '+'; + if (isExplicitlyPositive || isNegative) { + startIndex += 1; + } + let foundInsignificantZero = false; + for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) { + foundInsignificantZero = true; + } + if (!foundInsignificantZero) { + return isExplicitlyPositive ? str.slice(1) : str; + } + return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`; +} +function validateStringCharacters(str, radix) { + radix = radix ?? 10; + const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix); + const regex = new RegExp(`[^-+${validCharacters}]`, 'i'); + return regex.test(str) ? false : str; +} + +let wasm = undefined; +try { + wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports; +} +catch { +} +const TWO_PWR_16_DBL = 1 << 16; +const TWO_PWR_24_DBL = 1 << 24; +const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL; +const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL; +const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2; +const INT_CACHE = {}; +const UINT_CACHE = {}; +const MAX_INT64_STRING_LENGTH = 20; +const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/; +class Long extends BSONValue { + get _bsontype() { + return 'Long'; + } + get __isLong__() { + return true; + } + constructor(lowOrValue = 0, highOrUnsigned, unsigned) { + super(); + const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned); + const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0; + const res = typeof lowOrValue === 'string' + ? Long.fromString(lowOrValue, unsignedBool) + : typeof lowOrValue === 'bigint' + ? Long.fromBigInt(lowOrValue, unsignedBool) + : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool }; + this.low = res.low; + this.high = res.high; + this.unsigned = res.unsigned; + } + static fromBits(lowBits, highBits, unsigned) { + return new Long(lowBits, highBits, unsigned); + } + static fromInt(value, unsigned) { + let obj, cachedObj, cache; + if (unsigned) { + value >>>= 0; + if ((cache = 0 <= value && value < 256)) { + cachedObj = UINT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true); + if (cache) + UINT_CACHE[value] = obj; + return obj; + } + else { + value |= 0; + if ((cache = -128 <= value && value < 128)) { + cachedObj = INT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, value < 0 ? -1 : 0, false); + if (cache) + INT_CACHE[value] = obj; + return obj; + } + } + static fromNumber(value, unsigned) { + if (isNaN(value)) + return unsigned ? Long.UZERO : Long.ZERO; + if (unsigned) { + if (value < 0) + return Long.UZERO; + if (value >= TWO_PWR_64_DBL) + return Long.MAX_UNSIGNED_VALUE; + } + else { + if (value <= -TWO_PWR_63_DBL) + return Long.MIN_VALUE; + if (value + 1 >= TWO_PWR_63_DBL) + return Long.MAX_VALUE; + } + if (value < 0) + return Long.fromNumber(-value, unsigned).neg(); + return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned); + } + static fromBigInt(value, unsigned) { + const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff); + const FROM_BIGINT_BIT_SHIFT = BigInt(32); + return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned); + } + static _fromString(str, unsigned, radix) { + if (str.length === 0) + throw new BSONError('empty string'); + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + let p; + if ((p = str.indexOf('-')) > 0) + throw new BSONError('interior hyphen'); + else if (p === 0) { + return Long._fromString(str.substring(1), unsigned, radix).neg(); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 8)); + let result = Long.ZERO; + for (let i = 0; i < str.length; i += 8) { + const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix); + if (size < 8) { + const power = Long.fromNumber(Math.pow(radix, size)); + result = result.mul(power).add(Long.fromNumber(value)); + } + else { + result = result.mul(radixToPower); + result = result.add(Long.fromNumber(value)); + } + } + result.unsigned = unsigned; + return result; + } + static fromStringStrict(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str.trim() !== str) { + throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`); + } + if (!validateStringCharacters(str, radix)) { + throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`); + } + const cleanedStr = removeLeadingZerosAndExplicitPlus(str); + const result = Long._fromString(cleanedStr, unsigned, radix); + if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) { + throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`); + } + return result; + } + static fromString(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str === 'NaN' && radix < 24) { + return Long.ZERO; + } + else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) { + return Long.ZERO; + } + return Long._fromString(str, unsigned, radix); + } + static fromBytes(bytes, unsigned, le) { + return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned); + } + static fromBytesLE(bytes, unsigned) { + return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned); + } + static fromBytesBE(bytes, unsigned) { + return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned); + } + static isLong(value) { + return (value != null && + typeof value === 'object' && + '__isLong__' in value && + value.__isLong__ === true); + } + static fromValue(val, unsigned) { + if (typeof val === 'number') + return Long.fromNumber(val, unsigned); + if (typeof val === 'string') + return Long.fromString(val, unsigned); + return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned); + } + add(addend) { + if (!Long.isLong(addend)) + addend = Long.fromValue(addend); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = addend.high >>> 16; + const b32 = addend.high & 0xffff; + const b16 = addend.low >>> 16; + const b00 = addend.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 + b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 + b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 + b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 + b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + and(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned); + } + compare(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.eq(other)) + return 0; + const thisNeg = this.isNegative(), otherNeg = other.isNegative(); + if (thisNeg && !otherNeg) + return -1; + if (!thisNeg && otherNeg) + return 1; + if (!this.unsigned) + return this.sub(other).isNegative() ? -1 : 1; + return other.high >>> 0 > this.high >>> 0 || + (other.high === this.high && other.low >>> 0 > this.low >>> 0) + ? -1 + : 1; + } + comp(other) { + return this.compare(other); + } + divide(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (divisor.isZero()) + throw new BSONError('division by zero'); + if (wasm) { + if (!this.unsigned && + this.high === -0x80000000 && + divisor.low === -1 && + divisor.high === -1) { + return this; + } + const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (this.isZero()) + return this.unsigned ? Long.UZERO : Long.ZERO; + let approx, rem, res; + if (!this.unsigned) { + if (this.eq(Long.MIN_VALUE)) { + if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) + return Long.MIN_VALUE; + else if (divisor.eq(Long.MIN_VALUE)) + return Long.ONE; + else { + const halfThis = this.shr(1); + approx = halfThis.div(divisor).shl(1); + if (approx.eq(Long.ZERO)) { + return divisor.isNegative() ? Long.ONE : Long.NEG_ONE; + } + else { + rem = this.sub(divisor.mul(approx)); + res = approx.add(rem.div(divisor)); + return res; + } + } + } + else if (divisor.eq(Long.MIN_VALUE)) + return this.unsigned ? Long.UZERO : Long.ZERO; + if (this.isNegative()) { + if (divisor.isNegative()) + return this.neg().div(divisor.neg()); + return this.neg().div(divisor).neg(); + } + else if (divisor.isNegative()) + return this.div(divisor.neg()).neg(); + res = Long.ZERO; + } + else { + if (!divisor.unsigned) + divisor = divisor.toUnsigned(); + if (divisor.gt(this)) + return Long.UZERO; + if (divisor.gt(this.shru(1))) + return Long.UONE; + res = Long.UZERO; + } + rem = this; + while (rem.gte(divisor)) { + approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber())); + const log2 = Math.ceil(Math.log(approx) / Math.LN2); + const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48); + let approxRes = Long.fromNumber(approx); + let approxRem = approxRes.mul(divisor); + while (approxRem.isNegative() || approxRem.gt(rem)) { + approx -= delta; + approxRes = Long.fromNumber(approx, this.unsigned); + approxRem = approxRes.mul(divisor); + } + if (approxRes.isZero()) + approxRes = Long.ONE; + res = res.add(approxRes); + rem = rem.sub(approxRem); + } + return res; + } + div(divisor) { + return this.divide(divisor); + } + equals(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1) + return false; + return this.high === other.high && this.low === other.low; + } + eq(other) { + return this.equals(other); + } + getHighBits() { + return this.high; + } + getHighBitsUnsigned() { + return this.high >>> 0; + } + getLowBits() { + return this.low; + } + getLowBitsUnsigned() { + return this.low >>> 0; + } + getNumBitsAbs() { + if (this.isNegative()) { + return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs(); + } + const val = this.high !== 0 ? this.high : this.low; + let bit; + for (bit = 31; bit > 0; bit--) + if ((val & (1 << bit)) !== 0) + break; + return this.high !== 0 ? bit + 33 : bit + 1; + } + greaterThan(other) { + return this.comp(other) > 0; + } + gt(other) { + return this.greaterThan(other); + } + greaterThanOrEqual(other) { + return this.comp(other) >= 0; + } + gte(other) { + return this.greaterThanOrEqual(other); + } + ge(other) { + return this.greaterThanOrEqual(other); + } + isEven() { + return (this.low & 1) === 0; + } + isNegative() { + return !this.unsigned && this.high < 0; + } + isOdd() { + return (this.low & 1) === 1; + } + isPositive() { + return this.unsigned || this.high >= 0; + } + isZero() { + return this.high === 0 && this.low === 0; + } + lessThan(other) { + return this.comp(other) < 0; + } + lt(other) { + return this.lessThan(other); + } + lessThanOrEqual(other) { + return this.comp(other) <= 0; + } + lte(other) { + return this.lessThanOrEqual(other); + } + modulo(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (wasm) { + const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + return this.sub(this.div(divisor).mul(divisor)); + } + mod(divisor) { + return this.modulo(divisor); + } + rem(divisor) { + return this.modulo(divisor); + } + multiply(multiplier) { + if (this.isZero()) + return Long.ZERO; + if (!Long.isLong(multiplier)) + multiplier = Long.fromValue(multiplier); + if (wasm) { + const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (multiplier.isZero()) + return Long.ZERO; + if (this.eq(Long.MIN_VALUE)) + return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (multiplier.eq(Long.MIN_VALUE)) + return this.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (this.isNegative()) { + if (multiplier.isNegative()) + return this.neg().mul(multiplier.neg()); + else + return this.neg().mul(multiplier).neg(); + } + else if (multiplier.isNegative()) + return this.mul(multiplier.neg()).neg(); + if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24)) + return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = multiplier.high >>> 16; + const b32 = multiplier.high & 0xffff; + const b16 = multiplier.low >>> 16; + const b00 = multiplier.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 * b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 * b00; + c32 += c16 >>> 16; + c16 &= 0xffff; + c16 += a00 * b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 * b00; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a16 * b16; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a00 * b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + mul(multiplier) { + return this.multiply(multiplier); + } + negate() { + if (!this.unsigned && this.eq(Long.MIN_VALUE)) + return Long.MIN_VALUE; + return this.not().add(Long.ONE); + } + neg() { + return this.negate(); + } + not() { + return Long.fromBits(~this.low, ~this.high, this.unsigned); + } + notEquals(other) { + return !this.equals(other); + } + neq(other) { + return this.notEquals(other); + } + ne(other) { + return this.notEquals(other); + } + or(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned); + } + shiftLeft(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned); + else + return Long.fromBits(0, this.low << (numBits - 32), this.unsigned); + } + shl(numBits) { + return this.shiftLeft(numBits); + } + shiftRight(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned); + else + return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned); + } + shr(numBits) { + return this.shiftRight(numBits); + } + shiftRightUnsigned(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + numBits &= 63; + if (numBits === 0) + return this; + else { + const high = this.high; + if (numBits < 32) { + const low = this.low; + return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned); + } + else if (numBits === 32) + return Long.fromBits(high, 0, this.unsigned); + else + return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned); + } + } + shr_u(numBits) { + return this.shiftRightUnsigned(numBits); + } + shru(numBits) { + return this.shiftRightUnsigned(numBits); + } + subtract(subtrahend) { + if (!Long.isLong(subtrahend)) + subtrahend = Long.fromValue(subtrahend); + return this.add(subtrahend.neg()); + } + sub(subtrahend) { + return this.subtract(subtrahend); + } + toInt() { + return this.unsigned ? this.low >>> 0 : this.low; + } + toNumber() { + if (this.unsigned) + return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0); + return this.high * TWO_PWR_32_DBL + (this.low >>> 0); + } + toBigInt() { + return BigInt(this.toString()); + } + toBytes(le) { + return le ? this.toBytesLE() : this.toBytesBE(); + } + toBytesLE() { + const hi = this.high, lo = this.low; + return [ + lo & 0xff, + (lo >>> 8) & 0xff, + (lo >>> 16) & 0xff, + lo >>> 24, + hi & 0xff, + (hi >>> 8) & 0xff, + (hi >>> 16) & 0xff, + hi >>> 24 + ]; + } + toBytesBE() { + const hi = this.high, lo = this.low; + return [ + hi >>> 24, + (hi >>> 16) & 0xff, + (hi >>> 8) & 0xff, + hi & 0xff, + lo >>> 24, + (lo >>> 16) & 0xff, + (lo >>> 8) & 0xff, + lo & 0xff + ]; + } + toSigned() { + if (!this.unsigned) + return this; + return Long.fromBits(this.low, this.high, false); + } + toString(radix) { + radix = radix || 10; + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + if (this.isZero()) + return '0'; + if (this.isNegative()) { + if (this.eq(Long.MIN_VALUE)) { + const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this); + return div.toString(radix) + rem1.toInt().toString(radix); + } + else + return '-' + this.neg().toString(radix); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned); + let rem = this; + let result = ''; + while (true) { + const remDiv = rem.div(radixToPower); + const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0; + let digits = intval.toString(radix); + rem = remDiv; + if (rem.isZero()) { + return digits + result; + } + else { + while (digits.length < 6) + digits = '0' + digits; + result = '' + digits + result; + } + } + } + toUnsigned() { + if (this.unsigned) + return this; + return Long.fromBits(this.low, this.high, true); + } + xor(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned); + } + eqz() { + return this.isZero(); + } + le(other) { + return this.lessThanOrEqual(other); + } + toExtendedJSON(options) { + if (options && options.relaxed) + return this.toNumber(); + return { $numberLong: this.toString() }; + } + static fromExtendedJSON(doc, options) { + const { useBigInt64 = false, relaxed = true } = { ...options }; + if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) { + throw new BSONError('$numberLong string is too long'); + } + if (!DECIMAL_REG_EX.test(doc.$numberLong)) { + throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`); + } + if (useBigInt64) { + const bigIntResult = BigInt(doc.$numberLong); + return BigInt.asIntN(64, bigIntResult); + } + const longResult = Long.fromString(doc.$numberLong); + if (relaxed) { + return longResult.toNumber(); + } + return longResult; + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const longVal = inspect(this.toString(), options); + const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : ''; + return `new Long(${longVal}${unsignedVal})`; + } +} +Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL); +Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true); +Long.ZERO = Long.fromInt(0); +Long.UZERO = Long.fromInt(0, true); +Long.ONE = Long.fromInt(1); +Long.UONE = Long.fromInt(1, true); +Long.NEG_ONE = Long.fromInt(-1); +Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false); +Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false); + +const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/; +const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i; +const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i; +const EXPONENT_MAX = 6111; +const EXPONENT_MIN = -6176; +const EXPONENT_BIAS = 6176; +const MAX_DIGITS = 34; +const NAN_BUFFER = ByteUtils.fromNumberArray([ + 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([ + 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([ + 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const EXPONENT_REGEX = /^([-+])?(\d+)?$/; +const COMBINATION_MASK = 0x1f; +const EXPONENT_MASK = 0x3fff; +const COMBINATION_INFINITY = 30; +const COMBINATION_NAN = 31; +function isDigit(value) { + return !isNaN(parseInt(value, 10)); +} +function divideu128(value) { + const DIVISOR = Long.fromNumber(1000 * 1000 * 1000); + let _rem = Long.fromNumber(0); + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) { + return { quotient: value, rem: _rem }; + } + for (let i = 0; i <= 3; i++) { + _rem = _rem.shiftLeft(32); + _rem = _rem.add(new Long(value.parts[i], 0)); + value.parts[i] = _rem.div(DIVISOR).low; + _rem = _rem.modulo(DIVISOR); + } + return { quotient: value, rem: _rem }; +} +function multiply64x2(left, right) { + if (!left && !right) { + return { high: Long.fromNumber(0), low: Long.fromNumber(0) }; + } + const leftHigh = left.shiftRightUnsigned(32); + const leftLow = new Long(left.getLowBits(), 0); + const rightHigh = right.shiftRightUnsigned(32); + const rightLow = new Long(right.getLowBits(), 0); + let productHigh = leftHigh.multiply(rightHigh); + let productMid = leftHigh.multiply(rightLow); + const productMid2 = leftLow.multiply(rightHigh); + let productLow = leftLow.multiply(rightLow); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productMid = new Long(productMid.getLowBits(), 0) + .add(productMid2) + .add(productLow.shiftRightUnsigned(32)); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0)); + return { high: productHigh, low: productLow }; +} +function lessThan(left, right) { + const uhleft = left.high >>> 0; + const uhright = right.high >>> 0; + if (uhleft < uhright) { + return true; + } + else if (uhleft === uhright) { + const ulleft = left.low >>> 0; + const ulright = right.low >>> 0; + if (ulleft < ulright) + return true; + } + return false; +} +function invalidErr(string, message) { + throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`); +} +class Decimal128 extends BSONValue { + get _bsontype() { + return 'Decimal128'; + } + constructor(bytes) { + super(); + if (typeof bytes === 'string') { + this.bytes = Decimal128.fromString(bytes).bytes; + } + else if (isUint8Array(bytes)) { + if (bytes.byteLength !== 16) { + throw new BSONError('Decimal128 must take a Buffer of 16 bytes'); + } + this.bytes = bytes; + } + else { + throw new BSONError('Decimal128 must take a Buffer or string'); + } + } + static fromString(representation) { + return Decimal128._fromString(representation, { allowRounding: false }); + } + static fromStringWithRounding(representation) { + return Decimal128._fromString(representation, { allowRounding: true }); + } + static _fromString(representation, options) { + let isNegative = false; + let sawSign = false; + let sawRadix = false; + let foundNonZero = false; + let significantDigits = 0; + let nDigitsRead = 0; + let nDigits = 0; + let radixPosition = 0; + let firstNonZero = 0; + const digits = [0]; + let nDigitsStored = 0; + let digitsInsert = 0; + let lastDigit = 0; + let exponent = 0; + let significandHigh = new Long(0, 0); + let significandLow = new Long(0, 0); + let biasedExponent = 0; + let index = 0; + if (representation.length >= 7000) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + const stringMatch = representation.match(PARSE_STRING_REGEXP); + const infMatch = representation.match(PARSE_INF_REGEXP); + const nanMatch = representation.match(PARSE_NAN_REGEXP); + if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + if (stringMatch) { + const unsignedNumber = stringMatch[2]; + const e = stringMatch[4]; + const expSign = stringMatch[5]; + const expNumber = stringMatch[6]; + if (e && expNumber === undefined) + invalidErr(representation, 'missing exponent power'); + if (e && unsignedNumber === undefined) + invalidErr(representation, 'missing exponent base'); + if (e === undefined && (expSign || expNumber)) { + invalidErr(representation, 'missing e before exponent'); + } + } + if (representation[index] === '+' || representation[index] === '-') { + sawSign = true; + isNegative = representation[index++] === '-'; + } + if (!isDigit(representation[index]) && representation[index] !== '.') { + if (representation[index] === 'i' || representation[index] === 'I') { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + else if (representation[index] === 'N') { + return new Decimal128(NAN_BUFFER); + } + } + while (isDigit(representation[index]) || representation[index] === '.') { + if (representation[index] === '.') { + if (sawRadix) + invalidErr(representation, 'contains multiple periods'); + sawRadix = true; + index = index + 1; + continue; + } + if (nDigitsStored < MAX_DIGITS) { + if (representation[index] !== '0' || foundNonZero) { + if (!foundNonZero) { + firstNonZero = nDigitsRead; + } + foundNonZero = true; + digits[digitsInsert++] = parseInt(representation[index], 10); + nDigitsStored = nDigitsStored + 1; + } + } + if (foundNonZero) + nDigits = nDigits + 1; + if (sawRadix) + radixPosition = radixPosition + 1; + nDigitsRead = nDigitsRead + 1; + index = index + 1; + } + if (sawRadix && !nDigitsRead) + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + if (representation[index] === 'e' || representation[index] === 'E') { + const match = representation.substr(++index).match(EXPONENT_REGEX); + if (!match || !match[2]) + return new Decimal128(NAN_BUFFER); + exponent = parseInt(match[0], 10); + index = index + match[0].length; + } + if (representation[index]) + return new Decimal128(NAN_BUFFER); + if (!nDigitsStored) { + digits[0] = 0; + nDigits = 1; + nDigitsStored = 1; + significantDigits = 0; + } + else { + lastDigit = nDigitsStored - 1; + significantDigits = nDigits; + if (significantDigits !== 1) { + while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') { + significantDigits = significantDigits - 1; + } + } + } + if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) { + exponent = EXPONENT_MIN; + } + else { + exponent = exponent - radixPosition; + } + while (exponent > EXPONENT_MAX) { + lastDigit = lastDigit + 1; + if (lastDigit >= MAX_DIGITS) { + if (significantDigits === 0) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + exponent = exponent - 1; + } + if (options.allowRounding) { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0 && significantDigits < nDigitsStored) { + exponent = EXPONENT_MIN; + significantDigits = 0; + break; + } + if (nDigitsStored < nDigits) { + nDigits = nDigits - 1; + } + else { + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + const digitsString = digits.join(''); + if (digitsString.match(/^0+$/)) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + let endOfString = nDigitsRead; + if (sawRadix) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + let roundBit = 0; + if (roundDigit >= 5) { + roundBit = 1; + if (roundDigit === 5) { + roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0; + for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) { + if (parseInt(representation[i], 10)) { + roundBit = 1; + break; + } + } + } + } + if (roundBit) { + let dIdx = lastDigit; + for (; dIdx >= 0; dIdx--) { + if (++digits[dIdx] > 9) { + digits[dIdx] = 0; + if (dIdx === 0) { + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + digits[dIdx] = 1; + } + else { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + } + } + else { + break; + } + } + } + } + } + else { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0) { + if (significantDigits === 0) { + exponent = EXPONENT_MIN; + break; + } + invalidErr(representation, 'exponent underflow'); + } + if (nDigitsStored < nDigits) { + if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' && + significantDigits !== 0) { + invalidErr(representation, 'inexact rounding'); + } + nDigits = nDigits - 1; + } + else { + if (digits[lastDigit] !== 0) { + invalidErr(representation, 'inexact rounding'); + } + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + if (sawRadix) { + firstNonZero = firstNonZero + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + if (roundDigit !== 0) { + invalidErr(representation, 'inexact rounding'); + } + } + } + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + if (significantDigits === 0) { + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + } + else if (lastDigit < 17) { + let dIdx = 0; + significandLow = Long.fromNumber(digits[dIdx++]); + significandHigh = new Long(0, 0); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + else { + let dIdx = 0; + significandHigh = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit - 17; dIdx++) { + significandHigh = significandHigh.multiply(Long.fromNumber(10)); + significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx])); + } + significandLow = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000')); + significand.low = significand.low.add(significandLow); + if (lessThan(significand.low, significandLow)) { + significand.high = significand.high.add(Long.fromNumber(1)); + } + biasedExponent = exponent + EXPONENT_BIAS; + const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) }; + if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) { + dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61)); + dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff))); + } + else { + dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49)); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff))); + } + dec.low = significand.low; + if (isNegative) { + dec.high = dec.high.or(Long.fromString('9223372036854775808')); + } + const buffer = ByteUtils.allocateUnsafe(16); + index = 0; + buffer[index++] = dec.low.low & 0xff; + buffer[index++] = (dec.low.low >> 8) & 0xff; + buffer[index++] = (dec.low.low >> 16) & 0xff; + buffer[index++] = (dec.low.low >> 24) & 0xff; + buffer[index++] = dec.low.high & 0xff; + buffer[index++] = (dec.low.high >> 8) & 0xff; + buffer[index++] = (dec.low.high >> 16) & 0xff; + buffer[index++] = (dec.low.high >> 24) & 0xff; + buffer[index++] = dec.high.low & 0xff; + buffer[index++] = (dec.high.low >> 8) & 0xff; + buffer[index++] = (dec.high.low >> 16) & 0xff; + buffer[index++] = (dec.high.low >> 24) & 0xff; + buffer[index++] = dec.high.high & 0xff; + buffer[index++] = (dec.high.high >> 8) & 0xff; + buffer[index++] = (dec.high.high >> 16) & 0xff; + buffer[index++] = (dec.high.high >> 24) & 0xff; + return new Decimal128(buffer); + } + toString() { + let biased_exponent; + let significand_digits = 0; + const significand = new Array(36); + for (let i = 0; i < significand.length; i++) + significand[i] = 0; + let index = 0; + let is_zero = false; + let significand_msb; + let significand128 = { parts: [0, 0, 0, 0] }; + let j, k; + const string = []; + index = 0; + const buffer = this.bytes; + const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + index = 0; + const dec = { + low: new Long(low, midl), + high: new Long(midh, high) + }; + if (dec.high.lessThan(Long.ZERO)) { + string.push('-'); + } + const combination = (high >> 26) & COMBINATION_MASK; + if (combination >> 3 === 3) { + if (combination === COMBINATION_INFINITY) { + return string.join('') + 'Infinity'; + } + else if (combination === COMBINATION_NAN) { + return 'NaN'; + } + else { + biased_exponent = (high >> 15) & EXPONENT_MASK; + significand_msb = 0x08 + ((high >> 14) & 0x01); + } + } + else { + significand_msb = (high >> 14) & 0x07; + biased_exponent = (high >> 17) & EXPONENT_MASK; + } + const exponent = biased_exponent - EXPONENT_BIAS; + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + if (significand128.parts[0] === 0 && + significand128.parts[1] === 0 && + significand128.parts[2] === 0 && + significand128.parts[3] === 0) { + is_zero = true; + } + else { + for (k = 3; k >= 0; k--) { + let least_digits = 0; + const result = divideu128(significand128); + significand128 = result.quotient; + least_digits = result.rem.low; + if (!least_digits) + continue; + for (j = 8; j >= 0; j--) { + significand[k * 9 + j] = least_digits % 10; + least_digits = Math.floor(least_digits / 10); + } + } + } + if (is_zero) { + significand_digits = 1; + significand[index] = 0; + } + else { + significand_digits = 36; + while (!significand[index]) { + significand_digits = significand_digits - 1; + index = index + 1; + } + } + const scientific_exponent = significand_digits - 1 + exponent; + if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) { + if (significand_digits > 34) { + string.push(`${0}`); + if (exponent > 0) + string.push(`E+${exponent}`); + else if (exponent < 0) + string.push(`E${exponent}`); + return string.join(''); + } + string.push(`${significand[index++]}`); + significand_digits = significand_digits - 1; + if (significand_digits) { + string.push('.'); + } + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + string.push('E'); + if (scientific_exponent > 0) { + string.push(`+${scientific_exponent}`); + } + else { + string.push(`${scientific_exponent}`); + } + } + else { + if (exponent >= 0) { + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + } + else { + let radix_position = significand_digits + exponent; + if (radix_position > 0) { + for (let i = 0; i < radix_position; i++) { + string.push(`${significand[index++]}`); + } + } + else { + string.push('0'); + } + string.push('.'); + while (radix_position++ < 0) { + string.push('0'); + } + for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) { + string.push(`${significand[index++]}`); + } + } + } + return string.join(''); + } + toJSON() { + return { $numberDecimal: this.toString() }; + } + toExtendedJSON() { + return { $numberDecimal: this.toString() }; + } + static fromExtendedJSON(doc) { + return Decimal128.fromString(doc.$numberDecimal); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const d128string = inspect(this.toString(), options); + return `new Decimal128(${d128string})`; + } +} + +class Double extends BSONValue { + get _bsontype() { + return 'Double'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value; + } + static fromString(value) { + const coercedValue = Number(value); + if (value === 'NaN') + return new Double(NaN); + if (value === 'Infinity') + return new Double(Infinity); + if (value === '-Infinity') + return new Double(-Infinity); + if (!Number.isFinite(coercedValue)) { + throw new BSONError(`Input: ${value} is not representable as a Double`); + } + if (value.trim() !== value) { + throw new BSONError(`Input: '${value}' contains whitespace`); + } + if (value === '') { + throw new BSONError(`Input is an empty string`); + } + if (/[^-0-9.+eE]/.test(value)) { + throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`); + } + return new Double(coercedValue); + } + valueOf() { + return this.value; + } + toJSON() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toExtendedJSON(options) { + if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) { + return this.value; + } + if (Object.is(Math.sign(this.value), -0)) { + return { $numberDouble: '-0.0' }; + } + return { + $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString() + }; + } + static fromExtendedJSON(doc, options) { + const doubleValue = parseFloat(doc.$numberDouble); + return options && options.relaxed ? doubleValue : new Double(doubleValue); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Double(${inspect(this.value, options)})`; + } +} + +class Int32 extends BSONValue { + get _bsontype() { + return 'Int32'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value | 0; + } + static fromString(value) { + const cleanedValue = removeLeadingZerosAndExplicitPlus(value); + const coercedValue = Number(value); + if (BSON_INT32_MAX < coercedValue) { + throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`); + } + else if (BSON_INT32_MIN > coercedValue) { + throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`); + } + else if (!Number.isSafeInteger(coercedValue)) { + throw new BSONError(`Input: '${value}' is not a safe integer`); + } + else if (coercedValue.toString() !== cleanedValue) { + throw new BSONError(`Input: '${value}' is not a valid Int32 string`); + } + return new Int32(coercedValue); + } + valueOf() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toJSON() { + return this.value; + } + toExtendedJSON(options) { + if (options && (options.relaxed || options.legacy)) + return this.value; + return { $numberInt: this.value.toString() }; + } + static fromExtendedJSON(doc, options) { + return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Int32(${inspect(this.value, options)})`; + } +} + +class MaxKey extends BSONValue { + get _bsontype() { + return 'MaxKey'; + } + toExtendedJSON() { + return { $maxKey: 1 }; + } + static fromExtendedJSON() { + return new MaxKey(); + } + inspect() { + return 'new MaxKey()'; + } +} + +class MinKey extends BSONValue { + get _bsontype() { + return 'MinKey'; + } + toExtendedJSON() { + return { $minKey: 1 }; + } + static fromExtendedJSON() { + return new MinKey(); + } + inspect() { + return 'new MinKey()'; + } +} + +const FLOAT = new Float64Array(1); +const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8); +FLOAT[0] = -1; +const isBigEndian = FLOAT_BYTES[7] === 0; +const NumberUtils = { + getNonnegativeInt32LE(source, offset) { + if (source[offset + 3] > 127) { + throw new RangeError(`Size cannot be negative at offset: ${offset}`); + } + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getInt32LE(source, offset) { + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getUint32LE(source, offset) { + return (source[offset] + + source[offset + 1] * 256 + + source[offset + 2] * 65536 + + source[offset + 3] * 16777216); + }, + getUint32BE(source, offset) { + return (source[offset + 3] + + source[offset + 2] * 256 + + source[offset + 1] * 65536 + + source[offset] * 16777216); + }, + getBigInt64LE(source, offset) { + const lo = NumberUtils.getUint32LE(source, offset); + const hi = NumberUtils.getUint32LE(source, offset + 4); + return (BigInt(hi) << BigInt(32)) + BigInt(lo); + }, + getFloat64LE: isBigEndian + ? (source, offset) => { + FLOAT_BYTES[7] = source[offset]; + FLOAT_BYTES[6] = source[offset + 1]; + FLOAT_BYTES[5] = source[offset + 2]; + FLOAT_BYTES[4] = source[offset + 3]; + FLOAT_BYTES[3] = source[offset + 4]; + FLOAT_BYTES[2] = source[offset + 5]; + FLOAT_BYTES[1] = source[offset + 6]; + FLOAT_BYTES[0] = source[offset + 7]; + return FLOAT[0]; + } + : (source, offset) => { + FLOAT_BYTES[0] = source[offset]; + FLOAT_BYTES[1] = source[offset + 1]; + FLOAT_BYTES[2] = source[offset + 2]; + FLOAT_BYTES[3] = source[offset + 3]; + FLOAT_BYTES[4] = source[offset + 4]; + FLOAT_BYTES[5] = source[offset + 5]; + FLOAT_BYTES[6] = source[offset + 6]; + FLOAT_BYTES[7] = source[offset + 7]; + return FLOAT[0]; + }, + setInt32BE(destination, offset, value) { + destination[offset + 3] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset] = value; + return 4; + }, + setInt32LE(destination, offset, value) { + destination[offset] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 3] = value; + return 4; + }, + setBigInt64LE(destination, offset, value) { + const mask32bits = BigInt(4294967295); + let lo = Number(value & mask32bits); + destination[offset] = lo; + lo >>= 8; + destination[offset + 1] = lo; + lo >>= 8; + destination[offset + 2] = lo; + lo >>= 8; + destination[offset + 3] = lo; + let hi = Number((value >> BigInt(32)) & mask32bits); + destination[offset + 4] = hi; + hi >>= 8; + destination[offset + 5] = hi; + hi >>= 8; + destination[offset + 6] = hi; + hi >>= 8; + destination[offset + 7] = hi; + return 8; + }, + setFloat64LE: isBigEndian + ? (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[7]; + destination[offset + 1] = FLOAT_BYTES[6]; + destination[offset + 2] = FLOAT_BYTES[5]; + destination[offset + 3] = FLOAT_BYTES[4]; + destination[offset + 4] = FLOAT_BYTES[3]; + destination[offset + 5] = FLOAT_BYTES[2]; + destination[offset + 6] = FLOAT_BYTES[1]; + destination[offset + 7] = FLOAT_BYTES[0]; + return 8; + } + : (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[0]; + destination[offset + 1] = FLOAT_BYTES[1]; + destination[offset + 2] = FLOAT_BYTES[2]; + destination[offset + 3] = FLOAT_BYTES[3]; + destination[offset + 4] = FLOAT_BYTES[4]; + destination[offset + 5] = FLOAT_BYTES[5]; + destination[offset + 6] = FLOAT_BYTES[6]; + destination[offset + 7] = FLOAT_BYTES[7]; + return 8; + } +}; + +const checkForHexRegExp = new RegExp('^[0-9a-fA-F]{24}$'); +let PROCESS_UNIQUE = null; +class ObjectId extends BSONValue { + get _bsontype() { + return 'ObjectId'; + } + constructor(inputId) { + super(); + let workingId; + if (typeof inputId === 'object' && inputId && 'id' in inputId) { + if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) { + throw new BSONError('Argument passed in must have an id that is of type string or Buffer'); + } + if ('toHexString' in inputId && typeof inputId.toHexString === 'function') { + workingId = ByteUtils.fromHex(inputId.toHexString()); + } + else { + workingId = inputId.id; + } + } + else { + workingId = inputId; + } + if (workingId == null || typeof workingId === 'number') { + this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined); + } + else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) { + this.buffer = ByteUtils.toLocalBufferType(workingId); + } + else if (typeof workingId === 'string') { + if (workingId.length === 24 && checkForHexRegExp.test(workingId)) { + this.buffer = ByteUtils.fromHex(workingId); + } + else { + throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer'); + } + } + else { + throw new BSONError('Argument passed in does not match the accepted types'); + } + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(this.id); + } + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(value); + } + } + toHexString() { + if (ObjectId.cacheHexString && this.__id) { + return this.__id; + } + const hexString = ByteUtils.toHex(this.id); + if (ObjectId.cacheHexString && !this.__id) { + this.__id = hexString; + } + return hexString; + } + static getInc() { + return (ObjectId.index = (ObjectId.index + 1) % 0xffffff); + } + static generate(time) { + if ('number' !== typeof time) { + time = Math.floor(Date.now() / 1000); + } + const inc = ObjectId.getInc(); + const buffer = ByteUtils.allocateUnsafe(12); + NumberUtils.setInt32BE(buffer, 0, time); + if (PROCESS_UNIQUE === null) { + PROCESS_UNIQUE = ByteUtils.randomBytes(5); + } + buffer[4] = PROCESS_UNIQUE[0]; + buffer[5] = PROCESS_UNIQUE[1]; + buffer[6] = PROCESS_UNIQUE[2]; + buffer[7] = PROCESS_UNIQUE[3]; + buffer[8] = PROCESS_UNIQUE[4]; + buffer[11] = inc & 0xff; + buffer[10] = (inc >> 8) & 0xff; + buffer[9] = (inc >> 16) & 0xff; + return buffer; + } + toString(encoding) { + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + if (encoding === 'hex') + return this.toHexString(); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + static is(variable) { + return (variable != null && + typeof variable === 'object' && + '_bsontype' in variable && + variable._bsontype === 'ObjectId'); + } + equals(otherId) { + if (otherId === undefined || otherId === null) { + return false; + } + if (ObjectId.is(otherId)) { + return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer)); + } + if (typeof otherId === 'string') { + return otherId.toLowerCase() === this.toHexString(); + } + if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') { + const otherIdString = otherId.toHexString(); + const thisIdString = this.toHexString(); + return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString; + } + return false; + } + getTimestamp() { + const timestamp = new Date(); + const time = NumberUtils.getUint32BE(this.buffer, 0); + timestamp.setTime(Math.floor(time) * 1000); + return timestamp; + } + static createPk() { + return new ObjectId(); + } + serializeInto(uint8array, index) { + uint8array[index] = this.buffer[0]; + uint8array[index + 1] = this.buffer[1]; + uint8array[index + 2] = this.buffer[2]; + uint8array[index + 3] = this.buffer[3]; + uint8array[index + 4] = this.buffer[4]; + uint8array[index + 5] = this.buffer[5]; + uint8array[index + 6] = this.buffer[6]; + uint8array[index + 7] = this.buffer[7]; + uint8array[index + 8] = this.buffer[8]; + uint8array[index + 9] = this.buffer[9]; + uint8array[index + 10] = this.buffer[10]; + uint8array[index + 11] = this.buffer[11]; + return 12; + } + static createFromTime(time) { + const buffer = ByteUtils.allocate(12); + for (let i = 11; i >= 4; i--) + buffer[i] = 0; + NumberUtils.setInt32BE(buffer, 0, time); + return new ObjectId(buffer); + } + static createFromHexString(hexString) { + if (hexString?.length !== 24) { + throw new BSONError('hex string must be 24 characters'); + } + return new ObjectId(ByteUtils.fromHex(hexString)); + } + static createFromBase64(base64) { + if (base64?.length !== 16) { + throw new BSONError('base64 string must be 16 characters'); + } + return new ObjectId(ByteUtils.fromBase64(base64)); + } + static isValid(id) { + if (id == null) + return false; + try { + new ObjectId(id); + return true; + } + catch { + return false; + } + } + toExtendedJSON() { + if (this.toHexString) + return { $oid: this.toHexString() }; + return { $oid: this.toString('hex') }; + } + static fromExtendedJSON(doc) { + return new ObjectId(doc.$oid); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new ObjectId(${inspect(this.toHexString(), options)})`; + } +} +ObjectId.index = Math.floor(Math.random() * 0xffffff); + +function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) { + let totalLength = 4 + 1; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined); + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + } + for (const key of Object.keys(object)) { + totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined); + } + } + return totalLength; +} +function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) { + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + switch (typeof value) { + case 'string': + return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1; + case 'number': + if (Math.floor(value) === value && + value >= JS_INT_MIN && + value <= JS_INT_MAX) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1); + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + case 'undefined': + if (isArray || !ignoreUndefined) + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + return 0; + case 'boolean': + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1); + case 'object': + if (value != null && + typeof value._bsontype === 'string' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + } + else if (value._bsontype === 'ObjectId') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1); + } + else if (value instanceof Date || isDate(value)) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (ArrayBuffer.isView(value) || + value instanceof ArrayBuffer || + isAnyArrayBuffer(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength); + } + else if (value._bsontype === 'Long' || + value._bsontype === 'Double' || + value._bsontype === 'Timestamp') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (value._bsontype === 'Decimal128') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1); + } + else if (value._bsontype === 'Code') { + if (value.scope != null && Object.keys(value.scope).length > 0) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1 + + internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1); + } + } + else if (value._bsontype === 'Binary') { + const binary = value; + if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + (binary.position + 1 + 4 + 1 + 4)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1)); + } + } + else if (value._bsontype === 'Symbol') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + ByteUtils.utf8ByteLength(value.value) + + 4 + + 1 + + 1); + } + else if (value._bsontype === 'DBRef') { + const ordered_values = Object.assign({ + $ref: value.collection, + $id: value.oid + }, value.fields); + if (value.db != null) { + ordered_values['$db'] = value.db; + } + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined)); + } + else if (value instanceof RegExp || isRegExp(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.source) + + 1 + + (value.global ? 1 : 0) + + (value.ignoreCase ? 1 : 0) + + (value.multiline ? 1 : 0) + + 1); + } + else if (value._bsontype === 'BSONRegExp') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.pattern) + + 1 + + ByteUtils.utf8ByteLength(value.options) + + 1); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) + + 1); + } + case 'function': + if (serializeFunctions) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.toString()) + + 1); + } + } + return 0; +} + +function alphabetize(str) { + return str.split('').sort().join(''); +} +class BSONRegExp extends BSONValue { + get _bsontype() { + return 'BSONRegExp'; + } + constructor(pattern, options) { + super(); + this.pattern = pattern; + this.options = alphabetize(options ?? ''); + if (this.pattern.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`); + } + if (this.options.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`); + } + for (let i = 0; i < this.options.length; i++) { + if (!(this.options[i] === 'i' || + this.options[i] === 'm' || + this.options[i] === 'x' || + this.options[i] === 'l' || + this.options[i] === 's' || + this.options[i] === 'u')) { + throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`); + } + } + } + static parseOptions(options) { + return options ? options.split('').sort().join('') : ''; + } + toExtendedJSON(options) { + options = options || {}; + if (options.legacy) { + return { $regex: this.pattern, $options: this.options }; + } + return { $regularExpression: { pattern: this.pattern, options: this.options } }; + } + static fromExtendedJSON(doc) { + if ('$regex' in doc) { + if (typeof doc.$regex !== 'string') { + if (doc.$regex._bsontype === 'BSONRegExp') { + return doc; + } + } + else { + return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options)); + } + } + if ('$regularExpression' in doc) { + return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options)); + } + throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`); + } + inspect(depth, options, inspect) { + const stylize = getStylizeFunction(options) ?? (v => v); + inspect ??= defaultInspect; + const pattern = stylize(inspect(this.pattern), 'regexp'); + const flags = stylize(inspect(this.options), 'regexp'); + return `new BSONRegExp(${pattern}, ${flags})`; + } +} + +class BSONSymbol extends BSONValue { + get _bsontype() { + return 'BSONSymbol'; + } + constructor(value) { + super(); + this.value = value; + } + valueOf() { + return this.value; + } + toString() { + return this.value; + } + toJSON() { + return this.value; + } + toExtendedJSON() { + return { $symbol: this.value }; + } + static fromExtendedJSON(doc) { + return new BSONSymbol(doc.$symbol); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new BSONSymbol(${inspect(this.value, options)})`; + } +} + +const LongWithoutOverridesClass = Long; +class Timestamp extends LongWithoutOverridesClass { + get _bsontype() { + return 'Timestamp'; + } + constructor(low) { + if (low == null) { + super(0, 0, true); + } + else if (typeof low === 'bigint') { + super(low, true); + } + else if (Long.isLong(low)) { + super(low.low, low.high, true); + } + else if (typeof low === 'object' && 't' in low && 'i' in low) { + if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide t as a number'); + } + if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide i as a number'); + } + const t = Number(low.t); + const i = Number(low.i); + if (t < 0 || Number.isNaN(t)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive t'); + } + if (i < 0 || Number.isNaN(i)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive i'); + } + if (t > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max'); + } + if (i > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max'); + } + super(i, t, true); + } + else { + throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }'); + } + } + toJSON() { + return { + $timestamp: this.toString() + }; + } + static fromInt(value) { + return new Timestamp(Long.fromInt(value, true)); + } + static fromNumber(value) { + return new Timestamp(Long.fromNumber(value, true)); + } + static fromBits(lowBits, highBits) { + return new Timestamp({ i: lowBits, t: highBits }); + } + static fromString(str, optRadix) { + return new Timestamp(Long.fromString(str, true, optRadix)); + } + toExtendedJSON() { + return { $timestamp: { t: this.high >>> 0, i: this.low >>> 0 } }; + } + static fromExtendedJSON(doc) { + const i = Long.isLong(doc.$timestamp.i) + ? doc.$timestamp.i.getLowBitsUnsigned() + : doc.$timestamp.i; + const t = Long.isLong(doc.$timestamp.t) + ? doc.$timestamp.t.getLowBitsUnsigned() + : doc.$timestamp.t; + return new Timestamp({ t, i }); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const t = inspect(this.high >>> 0, options); + const i = inspect(this.low >>> 0, options); + return `new Timestamp({ t: ${t}, i: ${i} })`; + } +} +Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE; + +const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX); +const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN); +function internalDeserialize(buffer, options, isArray) { + options = options == null ? {} : options; + const index = options && options.index ? options.index : 0; + const size = NumberUtils.getInt32LE(buffer, index); + if (size < 5) { + throw new BSONError(`bson size must be >= 5, is ${size}`); + } + if (options.allowObjectSmallerThanBufferSize && buffer.length < size) { + throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`); + } + if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) { + throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`); + } + if (size + index > buffer.byteLength) { + throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`); + } + if (buffer[index + size - 1] !== 0) { + throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00"); + } + return deserializeObject(buffer, index, options, isArray); +} +const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/; +function deserializeObject(buffer, index, options, isArray = false) { + const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw']; + const raw = options['raw'] == null ? false : options['raw']; + const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false; + const promoteBuffers = options.promoteBuffers ?? false; + const promoteLongs = options.promoteLongs ?? true; + const promoteValues = options.promoteValues ?? true; + const useBigInt64 = options.useBigInt64 ?? false; + if (useBigInt64 && !promoteValues) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + if (useBigInt64 && !promoteLongs) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + const validation = options.validation == null ? { utf8: true } : options.validation; + let globalUTFValidation = true; + let validationSetting; + let utf8KeysSet; + const utf8ValidatedKeys = validation.utf8; + if (typeof utf8ValidatedKeys === 'boolean') { + validationSetting = utf8ValidatedKeys; + } + else { + globalUTFValidation = false; + const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) { + return utf8ValidatedKeys[key]; + }); + if (utf8ValidationValues.length === 0) { + throw new BSONError('UTF-8 validation setting cannot be empty'); + } + if (typeof utf8ValidationValues[0] !== 'boolean') { + throw new BSONError('Invalid UTF-8 validation option, must specify boolean values'); + } + validationSetting = utf8ValidationValues[0]; + if (!utf8ValidationValues.every(item => item === validationSetting)) { + throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false'); + } + } + if (!globalUTFValidation) { + utf8KeysSet = new Set(); + for (const key of Object.keys(utf8ValidatedKeys)) { + utf8KeysSet.add(key); + } + } + const startIndex = index; + if (buffer.length < 5) + throw new BSONError('corrupt bson message < 5 bytes long'); + const size = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (size < 5 || size > buffer.length) + throw new BSONError('corrupt bson message'); + const object = isArray ? [] : {}; + let arrayIndex = 0; + const done = false; + let isPossibleDBRef = isArray ? false : null; + while (!done) { + const elementType = buffer[index++]; + if (elementType === 0) + break; + let i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.byteLength) + throw new BSONError('Bad BSON Document: illegal CString'); + const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false); + let shouldValidateKey = true; + if (globalUTFValidation || utf8KeysSet?.has(name)) { + shouldValidateKey = validationSetting; + } + else { + shouldValidateKey = !validationSetting; + } + if (isPossibleDBRef !== false && name[0] === '$') { + isPossibleDBRef = allowedDBRefKeys.test(name); + } + let value; + index = i + 1; + if (elementType === BSON_DATA_STRING) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + } + else if (elementType === BSON_DATA_OID) { + const oid = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oid[i] = buffer[index + i]; + value = new ObjectId(oid); + index = index + 12; + } + else if (elementType === BSON_DATA_INT && promoteValues === false) { + value = new Int32(NumberUtils.getInt32LE(buffer, index)); + index += 4; + } + else if (elementType === BSON_DATA_INT) { + value = NumberUtils.getInt32LE(buffer, index); + index += 4; + } + else if (elementType === BSON_DATA_NUMBER) { + value = NumberUtils.getFloat64LE(buffer, index); + index += 8; + if (promoteValues === false) + value = new Double(value); + } + else if (elementType === BSON_DATA_DATE) { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + value = new Date(new Long(lowBits, highBits).toNumber()); + } + else if (elementType === BSON_DATA_BOOLEAN) { + if (buffer[index] !== 0 && buffer[index] !== 1) + throw new BSONError('illegal boolean type value'); + value = buffer[index++] === 1; + } + else if (elementType === BSON_DATA_OBJECT) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + if (objectSize <= 0 || objectSize > buffer.length - index) + throw new BSONError('bad embedded document length in bson'); + if (raw) { + value = buffer.slice(index, index + objectSize); + } + else { + let objectOptions = options; + if (!globalUTFValidation) { + objectOptions = { ...options, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, objectOptions, false); + } + index = index + objectSize; + } + else if (elementType === BSON_DATA_ARRAY) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + let arrayOptions = options; + const stopIndex = index + objectSize; + if (fieldsAsRaw && fieldsAsRaw[name]) { + arrayOptions = { ...options, raw: true }; + } + if (!globalUTFValidation) { + arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, arrayOptions, true); + index = index + objectSize; + if (buffer[index - 1] !== 0) + throw new BSONError('invalid array terminator byte'); + if (index !== stopIndex) + throw new BSONError('corrupted array bson'); + } + else if (elementType === BSON_DATA_UNDEFINED) { + value = undefined; + } + else if (elementType === BSON_DATA_NULL) { + value = null; + } + else if (elementType === BSON_DATA_LONG) { + if (useBigInt64) { + value = NumberUtils.getBigInt64LE(buffer, index); + index += 8; + } + else { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + const long = new Long(lowBits, highBits); + if (promoteLongs && promoteValues === true) { + value = + long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG) + ? long.toNumber() + : long; + } + else { + value = long; + } + } + } + else if (elementType === BSON_DATA_DECIMAL128) { + const bytes = ByteUtils.allocateUnsafe(16); + for (let i = 0; i < 16; i++) + bytes[i] = buffer[index + i]; + index = index + 16; + value = new Decimal128(bytes); + } + else if (elementType === BSON_DATA_BINARY) { + let binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + const totalBinarySize = binarySize; + const subType = buffer[index++]; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found'); + if (binarySize > buffer.byteLength) + throw new BSONError('Binary type size larger than document size'); + if (buffer['slice'] != null) { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.toLocalBufferType(buffer.slice(index, index + binarySize)); + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + else { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.allocateUnsafe(binarySize); + for (i = 0; i < binarySize; i++) { + value[i] = buffer[index + i]; + } + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + index = index + binarySize; + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + const optionsArray = new Array(regExpOptions.length); + for (i = 0; i < regExpOptions.length; i++) { + switch (regExpOptions[i]) { + case 'm': + optionsArray[i] = 'm'; + break; + case 's': + optionsArray[i] = 'g'; + break; + case 'i': + optionsArray[i] = 'i'; + break; + } + } + value = new RegExp(source, optionsArray.join('')); + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + value = new BSONRegExp(source, regExpOptions); + } + else if (elementType === BSON_DATA_SYMBOL) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = promoteValues ? symbol : new BSONSymbol(symbol); + index = index + stringSize; + } + else if (elementType === BSON_DATA_TIMESTAMP) { + value = new Timestamp({ + i: NumberUtils.getUint32LE(buffer, index), + t: NumberUtils.getUint32LE(buffer, index + 4) + }); + index += 8; + } + else if (elementType === BSON_DATA_MIN_KEY) { + value = new MinKey(); + } + else if (elementType === BSON_DATA_MAX_KEY) { + value = new MaxKey(); + } + else if (elementType === BSON_DATA_CODE) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = new Code(functionString); + index = index + stringSize; + } + else if (elementType === BSON_DATA_CODE_W_SCOPE) { + const totalSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (totalSize < 4 + 4 + 4 + 1) { + throw new BSONError('code_w_scope total size shorter minimum expected length'); + } + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + const scopeObject = deserializeObject(buffer, _index, options, false); + index = index + objectSize; + if (totalSize < 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too short, truncating scope'); + } + if (totalSize > 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too long, clips outer document'); + } + value = new Code(functionString, scopeObject); + } + else if (elementType === BSON_DATA_DBPOINTER) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) + throw new BSONError('bad string length in bson'); + const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const oidBuffer = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oidBuffer[i] = buffer[index + i]; + const oid = new ObjectId(oidBuffer); + index = index + 12; + value = new DBRef(namespace, oid); + } + else { + throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`); + } + if (name === '__proto__') { + Object.defineProperty(object, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + object[name] = value; + } + } + if (size !== index - startIndex) { + if (isArray) + throw new BSONError('corrupt array bson'); + throw new BSONError('corrupt object bson'); + } + if (!isPossibleDBRef) + return object; + if (isDBRefLike(object)) { + const copy = Object.assign({}, object); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(object.$ref, object.$id, object.$db, copy); + } + return object; +} + +const regexp = /\x00/; +const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']); +function serializeString(buffer, key, value, index) { + buffer[index++] = BSON_DATA_STRING; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes + 1; + buffer[index - 1] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4); + NumberUtils.setInt32LE(buffer, index, size + 1); + index = index + 4 + size; + buffer[index++] = 0; + return index; +} +function serializeNumber(buffer, key, value, index) { + const isNegativeZero = Object.is(value, -0); + const type = !isNegativeZero && + Number.isSafeInteger(value) && + value <= BSON_INT32_MAX && + value >= BSON_INT32_MIN + ? BSON_DATA_INT + : BSON_DATA_NUMBER; + buffer[index++] = type; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0x00; + if (type === BSON_DATA_INT) { + index += NumberUtils.setInt32LE(buffer, index, value); + } + else { + index += NumberUtils.setFloat64LE(buffer, index, value); + } + return index; +} +function serializeBigInt(buffer, key, value, index) { + buffer[index++] = BSON_DATA_LONG; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index += numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setBigInt64LE(buffer, index, value); + return index; +} +function serializeNull(buffer, key, _, index) { + buffer[index++] = BSON_DATA_NULL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeBoolean(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BOOLEAN; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + buffer[index++] = value ? 1 : 0; + return index; +} +function serializeDate(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DATE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const dateInMilis = Long.fromNumber(value.getTime()); + const lowBits = dateInMilis.getLowBits(); + const highBits = dateInMilis.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.source && value.source.match(regexp) != null) { + throw new BSONError('value ' + value.source + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index); + buffer[index++] = 0x00; + if (value.ignoreCase) + buffer[index++] = 0x69; + if (value.global) + buffer[index++] = 0x73; + if (value.multiline) + buffer[index++] = 0x6d; + buffer[index++] = 0x00; + return index; +} +function serializeBSONRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.pattern.match(regexp) != null) { + throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index); + buffer[index++] = 0x00; + const sortedOptions = value.options.split('').sort().join(''); + index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index); + buffer[index++] = 0x00; + return index; +} +function serializeMinMax(buffer, key, value, index) { + if (value === null) { + buffer[index++] = BSON_DATA_NULL; + } + else if (value._bsontype === 'MinKey') { + buffer[index++] = BSON_DATA_MIN_KEY; + } + else { + buffer[index++] = BSON_DATA_MAX_KEY; + } + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeObjectId(buffer, key, value, index) { + buffer[index++] = BSON_DATA_OID; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += value.serializeInto(buffer, index); + return index; +} +function serializeBuffer(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = value.length; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT; + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = value[i]; + } + else { + buffer.set(value, index); + } + index = index + size; + return index; +} +function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) { + if (path.has(value)) { + throw new BSONError('Cannot convert circular structure to BSON'); + } + path.add(value); + buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + path.delete(value); + return endIndex; +} +function serializeDecimal128(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DECIMAL128; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + for (let i = 0; i < 16; i++) + buffer[index + i] = value.bytes[i]; + return index + 16; +} +function serializeLong(buffer, key, value, index) { + buffer[index++] = + value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const lowBits = value.getLowBits(); + const highBits = value.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeInt32(buffer, key, value, index) { + value = value.valueOf(); + buffer[index++] = BSON_DATA_INT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setInt32LE(buffer, index, value); + return index; +} +function serializeDouble(buffer, key, value, index) { + buffer[index++] = BSON_DATA_NUMBER; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setFloat64LE(buffer, index, value.value); + return index; +} +function serializeFunction(buffer, key, value, index) { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) { + if (value.scope && typeof value.scope === 'object') { + buffer[index++] = BSON_DATA_CODE_W_SCOPE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + const functionString = value.code; + index = index + 4; + const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, codeSize); + buffer[index + 4 + codeSize - 1] = 0; + index = index + codeSize + 4; + const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + index = endIndex - 1; + const totalSize = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize); + buffer[index++] = 0; + } + else { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.code.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + } + return index; +} +function serializeBinary(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const data = value.buffer; + let size = value.position; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) + size = size + 4; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = value.sub_type; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + size = size - 4; + index += NumberUtils.setInt32LE(buffer, index, size); + } + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = data[i]; + } + else { + buffer.set(data, index); + } + index = index + value.position; + return index; +} +function serializeSymbol(buffer, key, value, index) { + buffer[index++] = BSON_DATA_SYMBOL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) { + buffer[index++] = BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + let output = { + $ref: value.collection || value.namespace, + $id: value.oid + }; + if (value.db != null) { + output.$db = value.db; + } + output = Object.assign(output, value.fields); + const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path); + const size = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, index, size); + return endIndex; +} +function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) { + if (path == null) { + if (object == null) { + buffer[0] = 0x05; + buffer[1] = 0x00; + buffer[2] = 0x00; + buffer[3] = 0x00; + buffer[4] = 0x00; + return 5; + } + if (Array.isArray(object)) { + throw new BSONError('serialize does not support an array as the root input'); + } + if (typeof object !== 'object') { + throw new BSONError('serialize does not support non-object as the root input'); + } + else if ('_bsontype' in object && typeof object._bsontype === 'string') { + throw new BSONError(`BSON types cannot be serialized as a document`); + } + else if (isDate(object) || + isRegExp(object) || + isUint8Array(object) || + isAnyArrayBuffer(object)) { + throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`); + } + path = new Set(); + } + path.add(object); + let index = startingIndex + 4; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + const key = `${i}`; + let value = object[i]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + if (typeof value === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (typeof value === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (typeof value === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (typeof value === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (typeof value === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else if (object instanceof Map || isMap(object)) { + const iterator = object.entries(); + let done = false; + while (!done) { + const entry = iterator.next(); + done = !!entry.done; + if (done) + continue; + const key = entry.value[0]; + let value = entry.value[1]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === null || (value === undefined && ignoreUndefined === false)) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + if (object != null && typeof object !== 'object') { + throw new BSONError('toBSON function did not return an object'); + } + } + for (const key of Object.keys(object)) { + let value = object[key]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + if (ignoreUndefined === false) + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + path.delete(object); + buffer[index++] = 0x00; + const size = index - startingIndex; + startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size); + return index; +} + +function isBSONType(value) { + return (value != null && + typeof value === 'object' && + '_bsontype' in value && + typeof value._bsontype === 'string'); +} +const keysToCodecs = { + $oid: ObjectId, + $binary: Binary, + $uuid: Binary, + $symbol: BSONSymbol, + $numberInt: Int32, + $numberDecimal: Decimal128, + $numberDouble: Double, + $numberLong: Long, + $minKey: MinKey, + $maxKey: MaxKey, + $regex: BSONRegExp, + $regularExpression: BSONRegExp, + $timestamp: Timestamp +}; +function deserializeValue(value, options = {}) { + if (typeof value === 'number') { + const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN; + const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN; + if (options.relaxed || options.legacy) { + return value; + } + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (in32BitRange) { + return new Int32(value); + } + if (in64BitRange) { + if (options.useBigInt64) { + return BigInt(value); + } + return Long.fromNumber(value); + } + } + return new Double(value); + } + if (value == null || typeof value !== 'object') + return value; + if (value.$undefined) + return null; + const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null); + for (let i = 0; i < keys.length; i++) { + const c = keysToCodecs[keys[i]]; + if (c) + return c.fromExtendedJSON(value, options); + } + if (value.$date != null) { + const d = value.$date; + const date = new Date(); + if (options.legacy) { + if (typeof d === 'number') + date.setTime(d); + else if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + else { + if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (Long.isLong(d)) + date.setTime(d.toNumber()); + else if (typeof d === 'number' && options.relaxed) + date.setTime(d); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + return date; + } + if (value.$code != null) { + const copy = Object.assign({}, value); + if (value.$scope) { + copy.$scope = deserializeValue(value.$scope); + } + return Code.fromExtendedJSON(value); + } + if (isDBRefLike(value) || value.$dbPointer) { + const v = value.$ref ? value : value.$dbPointer; + if (v instanceof DBRef) + return v; + const dollarKeys = Object.keys(v).filter(k => k.startsWith('$')); + let valid = true; + dollarKeys.forEach(k => { + if (['$ref', '$id', '$db'].indexOf(k) === -1) + valid = false; + }); + if (valid) + return DBRef.fromExtendedJSON(v); + } + return value; +} +function serializeArray(array, options) { + return array.map((v, index) => { + options.seenObjects.push({ propertyName: `index ${index}`, obj: null }); + try { + return serializeValue(v, options); + } + finally { + options.seenObjects.pop(); + } + }); +} +function getISOString(date) { + const isoStr = date.toISOString(); + return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z'; +} +function serializeValue(value, options) { + if (value instanceof Map || isMap(value)) { + const obj = Object.create(null); + for (const [k, v] of value) { + if (typeof k !== 'string') { + throw new BSONError('Can only serialize maps with string keys'); + } + obj[k] = v; + } + return serializeValue(obj, options); + } + if ((typeof value === 'object' || typeof value === 'function') && value !== null) { + const index = options.seenObjects.findIndex(entry => entry.obj === value); + if (index !== -1) { + const props = options.seenObjects.map(entry => entry.propertyName); + const leadingPart = props + .slice(0, index) + .map(prop => `${prop} -> `) + .join(''); + const alreadySeen = props[index]; + const circularPart = ' -> ' + + props + .slice(index + 1, props.length - 1) + .map(prop => `${prop} -> `) + .join(''); + const current = props[props.length - 1]; + const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2); + const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1); + throw new BSONError('Converting circular structure to EJSON:\n' + + ` ${leadingPart}${alreadySeen}${circularPart}${current}\n` + + ` ${leadingSpace}\\${dashes}/`); + } + options.seenObjects[options.seenObjects.length - 1].obj = value; + } + if (Array.isArray(value)) + return serializeArray(value, options); + if (value === undefined) + return null; + if (value instanceof Date || isDate(value)) { + const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000; + if (options.legacy) { + return options.relaxed && inRange + ? { $date: value.getTime() } + : { $date: getISOString(value) }; + } + return options.relaxed && inRange + ? { $date: getISOString(value) } + : { $date: { $numberLong: value.getTime().toString() } }; + } + if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) { + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return { $numberInt: value.toString() }; + } + if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) { + return { $numberLong: value.toString() }; + } + } + return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() }; + } + if (typeof value === 'bigint') { + if (!options.relaxed) { + return { $numberLong: BigInt.asIntN(64, value).toString() }; + } + return Number(BigInt.asIntN(64, value)); + } + if (value instanceof RegExp || isRegExp(value)) { + let flags = value.flags; + if (flags === undefined) { + const match = value.toString().match(/[gimuy]*$/); + if (match) { + flags = match[0]; + } + } + const rx = new BSONRegExp(value.source, flags); + return rx.toExtendedJSON(options); + } + if (value != null && typeof value === 'object') + return serializeDocument(value, options); + return value; +} +const BSON_TYPE_MAPPINGS = { + Binary: (o) => new Binary(o.value(), o.sub_type), + Code: (o) => new Code(o.code, o.scope), + DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), + Decimal128: (o) => new Decimal128(o.bytes), + Double: (o) => new Double(o.value), + Int32: (o) => new Int32(o.value), + Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_), + MaxKey: () => new MaxKey(), + MinKey: () => new MinKey(), + ObjectId: (o) => new ObjectId(o), + BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options), + BSONSymbol: (o) => new BSONSymbol(o.value), + Timestamp: (o) => Timestamp.fromBits(o.low, o.high) +}; +function serializeDocument(doc, options) { + if (doc == null || typeof doc !== 'object') + throw new BSONError('not an object instance'); + const bsontype = doc._bsontype; + if (typeof bsontype === 'undefined') { + const _doc = {}; + for (const name of Object.keys(doc)) { + options.seenObjects.push({ propertyName: name, obj: null }); + try { + const value = serializeValue(doc[name], options); + if (name === '__proto__') { + Object.defineProperty(_doc, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + _doc[name] = value; + } + } + finally { + options.seenObjects.pop(); + } + } + return _doc; + } + else if (doc != null && + typeof doc === 'object' && + typeof doc._bsontype === 'string' && + doc[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (isBSONType(doc)) { + let outDoc = doc; + if (typeof outDoc.toExtendedJSON !== 'function') { + const mapper = BSON_TYPE_MAPPINGS[doc._bsontype]; + if (!mapper) { + throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype); + } + outDoc = mapper(outDoc); + } + if (bsontype === 'Code' && outDoc.scope) { + outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options)); + } + else if (bsontype === 'DBRef' && outDoc.oid) { + outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options)); + } + return outDoc.toExtendedJSON(options); + } + else { + throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype); + } +} +function parse(text, options) { + const ejsonOptions = { + useBigInt64: options?.useBigInt64 ?? false, + relaxed: options?.relaxed ?? true, + legacy: options?.legacy ?? false + }; + return JSON.parse(text, (key, value) => { + if (key.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`); + } + return deserializeValue(value, ejsonOptions); + }); +} +function stringify(value, replacer, space, options) { + if (space != null && typeof space === 'object') { + options = space; + space = 0; + } + if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) { + options = replacer; + replacer = undefined; + space = 0; + } + const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, { + seenObjects: [{ propertyName: '(root)', obj: null }] + }); + const doc = serializeValue(value, serializeOptions); + return JSON.stringify(doc, replacer, space); +} +function EJSONserialize(value, options) { + options = options || {}; + return JSON.parse(stringify(value, options)); +} +function EJSONdeserialize(ejson, options) { + options = options || {}; + return parse(JSON.stringify(ejson), options); +} +const EJSON = Object.create(null); +EJSON.parse = parse; +EJSON.stringify = stringify; +EJSON.serialize = EJSONserialize; +EJSON.deserialize = EJSONdeserialize; +Object.freeze(EJSON); + +function getSize(source, offset) { + try { + return NumberUtils.getNonnegativeInt32LE(source, offset); + } + catch (cause) { + throw new BSONOffsetError('BSON size cannot be negative', offset, { cause }); + } +} +function findNull(bytes, offset) { + let nullTerminatorOffset = offset; + for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++) + ; + if (nullTerminatorOffset === bytes.length - 1) { + throw new BSONOffsetError('Null terminator not found', offset); + } + return nullTerminatorOffset; +} +function parseToElements(bytes, startOffset = 0) { + startOffset ??= 0; + if (bytes.length < 5) { + throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset); + } + const documentSize = getSize(bytes, startOffset); + if (documentSize > bytes.length - startOffset) { + throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset); + } + if (bytes[startOffset + documentSize - 1] !== 0x00) { + throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize); + } + const elements = []; + let offset = startOffset + 4; + while (offset <= documentSize + startOffset) { + const type = bytes[offset]; + offset += 1; + if (type === 0) { + if (offset - startOffset !== documentSize) { + throw new BSONOffsetError(`Invalid 0x00 type byte`, offset); + } + break; + } + const nameOffset = offset; + const nameLength = findNull(bytes, offset) - nameOffset; + offset += nameLength + 1; + let length; + if (type === 1 || + type === 18 || + type === 9 || + type === 17) { + length = 8; + } + else if (type === 16) { + length = 4; + } + else if (type === 7) { + length = 12; + } + else if (type === 19) { + length = 16; + } + else if (type === 8) { + length = 1; + } + else if (type === 10 || + type === 6 || + type === 127 || + type === 255) { + length = 0; + } + else if (type === 11) { + length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset; + } + else if (type === 3 || + type === 4 || + type === 15) { + length = getSize(bytes, offset); + } + else if (type === 2 || + type === 5 || + type === 12 || + type === 13 || + type === 14) { + length = getSize(bytes, offset) + 4; + if (type === 5) { + length += 1; + } + if (type === 12) { + length += 12; + } + } + else { + throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset); + } + if (length > documentSize) { + throw new BSONOffsetError('value reports length larger than document', offset); + } + elements.push([type, nameOffset, nameLength, offset, length]); + offset += length; + } + return elements; +} + +const onDemand = Object.create(null); +onDemand.parseToElements = parseToElements; +onDemand.ByteUtils = ByteUtils; +onDemand.NumberUtils = NumberUtils; +Object.freeze(onDemand); + +const MAXSIZE = 1024 * 1024 * 17; +let buffer = ByteUtils.allocate(MAXSIZE); +function setInternalBufferSize(size) { + if (buffer.length < size) { + buffer = ByteUtils.allocate(size); + } +} +function serialize(object, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE; + if (buffer.length < minInternalBufferSize) { + buffer = ByteUtils.allocate(minInternalBufferSize); + } + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex); + finishedBuffer.set(buffer.subarray(0, serializationIndex), 0); + return finishedBuffer; +} +function serializeWithBufferAndIndex(object, finalBuffer, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const startIndex = typeof options.index === 'number' ? options.index : 0; + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex); + return startIndex + serializationIndex - 1; +} +function deserialize(buffer, options = {}) { + return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options); +} +function calculateObjectSize(object, options = {}) { + options = options || {}; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined); +} +function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) { + const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options); + const bufferData = ByteUtils.toLocalBufferType(data); + let index = startIndex; + for (let i = 0; i < numberOfDocuments; i++) { + const size = NumberUtils.getInt32LE(bufferData, index); + internalOptions.index = index; + documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions); + index = index + size; + } + return index; +} + +var bson = /*#__PURE__*/Object.freeze({ + __proto__: null, + BSONError: BSONError, + BSONOffsetError: BSONOffsetError, + BSONRegExp: BSONRegExp, + BSONRuntimeError: BSONRuntimeError, + BSONSymbol: BSONSymbol, + BSONType: BSONType, + BSONValue: BSONValue, + BSONVersionError: BSONVersionError, + Binary: Binary, + Code: Code, + DBRef: DBRef, + Decimal128: Decimal128, + Double: Double, + EJSON: EJSON, + Int32: Int32, + Long: Long, + MaxKey: MaxKey, + MinKey: MinKey, + ObjectId: ObjectId, + Timestamp: Timestamp, + UUID: UUID, + calculateObjectSize: calculateObjectSize, + deserialize: deserialize, + deserializeStream: deserializeStream, + onDemand: onDemand, + serialize: serialize, + serializeWithBufferAndIndex: serializeWithBufferAndIndex, + setInternalBufferSize: setInternalBufferSize +}); + +export { bson as BSON, BSONError, BSONOffsetError, BSONRegExp, BSONRuntimeError, BSONSymbol, BSONType, BSONValue, BSONVersionError, Binary, Code, DBRef, Decimal128, Double, EJSON, Int32, Long, MaxKey, MinKey, ObjectId, Timestamp, UUID, calculateObjectSize, deserialize, deserializeStream, onDemand, serialize, serializeWithBufferAndIndex, setInternalBufferSize }; +//# sourceMappingURL=bson.mjs.map diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.mjs.map b/week-3/04-course-app-hard/node_modules/bson/lib/bson.mjs.map new file mode 100644 index 000000000..fd50af3fd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.mjs.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.rn.cjs b/week-3/04-course-app-hard/node_modules/bson/lib/bson.rn.cjs new file mode 100644 index 000000000..8536b9c1c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.rn.cjs @@ -0,0 +1,4434 @@ +'use strict'; + +function isAnyArrayBuffer(value) { + return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes(Object.prototype.toString.call(value)); +} +function isUint8Array(value) { + return Object.prototype.toString.call(value) === '[object Uint8Array]'; +} +function isBigInt64Array(value) { + return Object.prototype.toString.call(value) === '[object BigInt64Array]'; +} +function isBigUInt64Array(value) { + return Object.prototype.toString.call(value) === '[object BigUint64Array]'; +} +function isRegExp(d) { + return Object.prototype.toString.call(d) === '[object RegExp]'; +} +function isMap(d) { + return Object.prototype.toString.call(d) === '[object Map]'; +} +function isDate(d) { + return Object.prototype.toString.call(d) === '[object Date]'; +} +function defaultInspect(x, _options) { + return JSON.stringify(x, (k, v) => { + if (typeof v === 'bigint') { + return { $numberLong: `${v}` }; + } + else if (isMap(v)) { + return Object.fromEntries(v); + } + return v; + }); +} +function getStylizeFunction(options) { + const stylizeExists = options != null && + typeof options === 'object' && + 'stylize' in options && + typeof options.stylize === 'function'; + if (stylizeExists) { + return options.stylize; + } +} + +const BSON_MAJOR_VERSION = 6; +const BSON_INT32_MAX = 0x7fffffff; +const BSON_INT32_MIN = -0x80000000; +const BSON_INT64_MAX = Math.pow(2, 63) - 1; +const BSON_INT64_MIN = -Math.pow(2, 63); +const JS_INT_MAX = Math.pow(2, 53); +const JS_INT_MIN = -Math.pow(2, 53); +const BSON_DATA_NUMBER = 1; +const BSON_DATA_STRING = 2; +const BSON_DATA_OBJECT = 3; +const BSON_DATA_ARRAY = 4; +const BSON_DATA_BINARY = 5; +const BSON_DATA_UNDEFINED = 6; +const BSON_DATA_OID = 7; +const BSON_DATA_BOOLEAN = 8; +const BSON_DATA_DATE = 9; +const BSON_DATA_NULL = 10; +const BSON_DATA_REGEXP = 11; +const BSON_DATA_DBPOINTER = 12; +const BSON_DATA_CODE = 13; +const BSON_DATA_SYMBOL = 14; +const BSON_DATA_CODE_W_SCOPE = 15; +const BSON_DATA_INT = 16; +const BSON_DATA_TIMESTAMP = 17; +const BSON_DATA_LONG = 18; +const BSON_DATA_DECIMAL128 = 19; +const BSON_DATA_MIN_KEY = 0xff; +const BSON_DATA_MAX_KEY = 0x7f; +const BSON_BINARY_SUBTYPE_DEFAULT = 0; +const BSON_BINARY_SUBTYPE_FUNCTION = 1; +const BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2; +const BSON_BINARY_SUBTYPE_UUID = 3; +const BSON_BINARY_SUBTYPE_UUID_NEW = 4; +const BSON_BINARY_SUBTYPE_MD5 = 5; +const BSON_BINARY_SUBTYPE_ENCRYPTED = 6; +const BSON_BINARY_SUBTYPE_COLUMN = 7; +const BSON_BINARY_SUBTYPE_SENSITIVE = 8; +const BSON_BINARY_SUBTYPE_USER_DEFINED = 128; +const BSONType = Object.freeze({ + double: 1, + string: 2, + object: 3, + array: 4, + binData: 5, + undefined: 6, + objectId: 7, + bool: 8, + date: 9, + null: 10, + regex: 11, + dbPointer: 12, + javascript: 13, + symbol: 14, + javascriptWithScope: 15, + int: 16, + timestamp: 17, + long: 18, + decimal: 19, + minKey: -1, + maxKey: 127 +}); + +class BSONError extends Error { + get bsonError() { + return true; + } + get name() { + return 'BSONError'; + } + constructor(message, options) { + super(message, options); + } + static isBSONError(value) { + return (value != null && + typeof value === 'object' && + 'bsonError' in value && + value.bsonError === true && + 'name' in value && + 'message' in value && + 'stack' in value); + } +} +class BSONVersionError extends BSONError { + get name() { + return 'BSONVersionError'; + } + constructor() { + super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`); + } +} +class BSONRuntimeError extends BSONError { + get name() { + return 'BSONRuntimeError'; + } + constructor(message) { + super(message); + } +} +class BSONOffsetError extends BSONError { + get name() { + return 'BSONOffsetError'; + } + constructor(message, offset, options) { + super(`${message}. offset: ${offset}`, options); + this.offset = offset; + } +} + +const { TextDecoder } = require('../vendor/text-encoding'); +let TextDecoderFatal; +let TextDecoderNonFatal; +function parseUtf8(buffer, start, end, fatal) { + if (fatal) { + TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true }); + try { + return TextDecoderFatal.decode(buffer.subarray(start, end)); + } + catch (cause) { + throw new BSONError('Invalid UTF-8 string in BSON document', { cause }); + } + } + TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false }); + return TextDecoderNonFatal.decode(buffer.subarray(start, end)); +} + +function tryReadBasicLatin(uint8array, start, end) { + if (uint8array.length === 0) { + return ''; + } + const stringByteLength = end - start; + if (stringByteLength === 0) { + return ''; + } + if (stringByteLength > 20) { + return null; + } + if (stringByteLength === 1 && uint8array[start] < 128) { + return String.fromCharCode(uint8array[start]); + } + if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) { + return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]); + } + if (stringByteLength === 3 && + uint8array[start] < 128 && + uint8array[start + 1] < 128 && + uint8array[start + 2] < 128) { + return (String.fromCharCode(uint8array[start]) + + String.fromCharCode(uint8array[start + 1]) + + String.fromCharCode(uint8array[start + 2])); + } + const latinBytes = []; + for (let i = start; i < end; i++) { + const byte = uint8array[i]; + if (byte > 127) { + return null; + } + latinBytes.push(byte); + } + return String.fromCharCode(...latinBytes); +} +function tryWriteBasicLatin(destination, source, offset) { + if (source.length === 0) + return 0; + if (source.length > 25) + return null; + if (destination.length - offset < source.length) + return null; + for (let charOffset = 0, destinationOffset = offset; charOffset < source.length; charOffset++, destinationOffset++) { + const char = source.charCodeAt(charOffset); + if (char > 127) + return null; + destination[destinationOffset] = char; + } + return source.length; +} + +function nodejsMathRandomBytes(byteLength) { + return nodeJsByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const nodejsRandomBytes = (() => { + try { + return require('crypto').randomBytes; + } + catch { + return nodejsMathRandomBytes; + } +})(); +const nodeJsByteUtils = { + toLocalBufferType(potentialBuffer) { + if (Buffer.isBuffer(potentialBuffer)) { + return potentialBuffer; + } + if (ArrayBuffer.isView(potentialBuffer)) { + return Buffer.from(potentialBuffer.buffer, potentialBuffer.byteOffset, potentialBuffer.byteLength); + } + const stringTag = potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer); + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return Buffer.from(potentialBuffer); + } + throw new BSONError(`Cannot create Buffer from ${String(potentialBuffer)}`); + }, + allocate(size) { + return Buffer.alloc(size); + }, + allocateUnsafe(size) { + return Buffer.allocUnsafe(size); + }, + equals(a, b) { + return nodeJsByteUtils.toLocalBufferType(a).equals(b); + }, + fromNumberArray(array) { + return Buffer.from(array); + }, + fromBase64(base64) { + return Buffer.from(base64, 'base64'); + }, + toBase64(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64'); + }, + fromISO88591(codePoints) { + return Buffer.from(codePoints, 'binary'); + }, + toISO88591(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary'); + }, + fromHex(hex) { + return Buffer.from(hex, 'hex'); + }, + toHex(buffer) { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex'); + }, + toUTF8(buffer, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end); + if (fatal) { + for (let i = 0; i < string.length; i++) { + if (string.charCodeAt(i) === 0xfffd) { + parseUtf8(buffer, start, end, true); + break; + } + } + } + return string; + }, + utf8ByteLength(input) { + return Buffer.byteLength(input, 'utf8'); + }, + encodeUTF8Into(buffer, source, byteOffset) { + const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset); + if (latinBytesWritten != null) { + return latinBytesWritten; + } + return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8'); + }, + randomBytes: nodejsRandomBytes +}; + +const { TextEncoder } = require('../vendor/text-encoding'); +const { encode: btoa, decode: atob } = require('../vendor/base64'); +function isReactNative() { + const { navigator } = globalThis; + return typeof navigator === 'object' && navigator.product === 'ReactNative'; +} +function webMathRandomBytes(byteLength) { + if (byteLength < 0) { + throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`); + } + return webByteUtils.fromNumberArray(Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))); +} +const webRandomBytes = (() => { + const { crypto } = globalThis; + if (crypto != null && typeof crypto.getRandomValues === 'function') { + return (byteLength) => { + return crypto.getRandomValues(webByteUtils.allocate(byteLength)); + }; + } + else { + if (isReactNative()) { + const { console } = globalThis; + console?.warn?.('BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'); + } + return webMathRandomBytes; + } +})(); +const HEX_DIGIT = /(\d|[a-f])/i; +const webByteUtils = { + toLocalBufferType(potentialUint8array) { + const stringTag = potentialUint8array?.[Symbol.toStringTag] ?? + Object.prototype.toString.call(potentialUint8array); + if (stringTag === 'Uint8Array') { + return potentialUint8array; + } + if (ArrayBuffer.isView(potentialUint8array)) { + return new Uint8Array(potentialUint8array.buffer.slice(potentialUint8array.byteOffset, potentialUint8array.byteOffset + potentialUint8array.byteLength)); + } + if (stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]') { + return new Uint8Array(potentialUint8array); + } + throw new BSONError(`Cannot make a Uint8Array from ${String(potentialUint8array)}`); + }, + allocate(size) { + if (typeof size !== 'number') { + throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`); + } + return new Uint8Array(size); + }, + allocateUnsafe(size) { + return webByteUtils.allocate(size); + }, + equals(a, b) { + if (a.byteLength !== b.byteLength) { + return false; + } + for (let i = 0; i < a.byteLength; i++) { + if (a[i] !== b[i]) { + return false; + } + } + return true; + }, + fromNumberArray(array) { + return Uint8Array.from(array); + }, + fromBase64(base64) { + return Uint8Array.from(atob(base64), c => c.charCodeAt(0)); + }, + toBase64(uint8array) { + return btoa(webByteUtils.toISO88591(uint8array)); + }, + fromISO88591(codePoints) { + return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff); + }, + toISO88591(uint8array) { + return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join(''); + }, + fromHex(hex) { + const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1); + const buffer = []; + for (let i = 0; i < evenLengthHex.length; i += 2) { + const firstDigit = evenLengthHex[i]; + const secondDigit = evenLengthHex[i + 1]; + if (!HEX_DIGIT.test(firstDigit)) { + break; + } + if (!HEX_DIGIT.test(secondDigit)) { + break; + } + const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16); + buffer.push(hexDigit); + } + return Uint8Array.from(buffer); + }, + toHex(uint8array) { + return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join(''); + }, + toUTF8(uint8array, start, end, fatal) { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + return parseUtf8(uint8array, start, end, fatal); + }, + utf8ByteLength(input) { + return new TextEncoder().encode(input).byteLength; + }, + encodeUTF8Into(uint8array, source, byteOffset) { + const bytes = new TextEncoder().encode(source); + uint8array.set(bytes, byteOffset); + return bytes.byteLength; + }, + randomBytes: webRandomBytes +}; + +const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true; +const ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils; + +class BSONValue { + get [Symbol.for('@@mdb.bson.version')]() { + return BSON_MAJOR_VERSION; + } + [Symbol.for('nodejs.util.inspect.custom')](depth, options, inspect) { + return this.inspect(depth, options, inspect); + } +} + +class Binary extends BSONValue { + get _bsontype() { + return 'Binary'; + } + constructor(buffer, subType) { + super(); + if (!(buffer == null) && + typeof buffer === 'string' && + !ArrayBuffer.isView(buffer) && + !isAnyArrayBuffer(buffer) && + !Array.isArray(buffer)) { + throw new BSONError('Binary can only be constructed from Uint8Array or number[]'); + } + this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT; + if (buffer == null) { + this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE); + this.position = 0; + } + else { + this.buffer = Array.isArray(buffer) + ? ByteUtils.fromNumberArray(buffer) + : ByteUtils.toLocalBufferType(buffer); + this.position = this.buffer.byteLength; + } + } + put(byteValue) { + if (typeof byteValue === 'string' && byteValue.length !== 1) { + throw new BSONError('only accepts single character String'); + } + else if (typeof byteValue !== 'number' && byteValue.length !== 1) + throw new BSONError('only accepts single character Uint8Array or Array'); + let decodedByte; + if (typeof byteValue === 'string') { + decodedByte = byteValue.charCodeAt(0); + } + else if (typeof byteValue === 'number') { + decodedByte = byteValue; + } + else { + decodedByte = byteValue[0]; + } + if (decodedByte < 0 || decodedByte > 255) { + throw new BSONError('only accepts number in a valid unsigned byte range 0-255'); + } + if (this.buffer.byteLength > this.position) { + this.buffer[this.position++] = decodedByte; + } + else { + const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + this.buffer[this.position++] = decodedByte; + } + } + write(sequence, offset) { + offset = typeof offset === 'number' ? offset : this.position; + if (this.buffer.byteLength < offset + sequence.length) { + const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + } + if (ArrayBuffer.isView(sequence)) { + this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset); + this.position = + offset + sequence.byteLength > this.position ? offset + sequence.length : this.position; + } + else if (typeof sequence === 'string') { + throw new BSONError('input cannot be string'); + } + } + read(position, length) { + length = length && length > 0 ? length : this.position; + return this.buffer.slice(position, position + length); + } + value() { + return this.buffer.length === this.position + ? this.buffer + : this.buffer.subarray(0, this.position); + } + length() { + return this.position; + } + toJSON() { + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.buffer.subarray(0, this.position)); + if (encoding === 'base64') + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + if (encoding === 'utf8' || encoding === 'utf-8') + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + } + toExtendedJSON(options) { + options = options || {}; + const base64String = ByteUtils.toBase64(this.buffer); + const subType = Number(this.sub_type).toString(16); + if (options.legacy) { + return { + $binary: base64String, + $type: subType.length === 1 ? '0' + subType : subType + }; + } + return { + $binary: { + base64: base64String, + subType: subType.length === 1 ? '0' + subType : subType + } + }; + } + toUUID() { + if (this.sub_type === Binary.SUBTYPE_UUID) { + return new UUID(this.buffer.slice(0, this.position)); + } + throw new BSONError(`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`); + } + static createFromHexString(hex, subType) { + return new Binary(ByteUtils.fromHex(hex), subType); + } + static createFromBase64(base64, subType) { + return new Binary(ByteUtils.fromBase64(base64), subType); + } + static fromExtendedJSON(doc, options) { + options = options || {}; + let data; + let type; + if ('$binary' in doc) { + if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) { + type = doc.$type ? parseInt(doc.$type, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary); + } + else { + if (typeof doc.$binary !== 'string') { + type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary.base64); + } + } + } + else if ('$uuid' in doc) { + type = 4; + data = UUID.bytesFromString(doc.$uuid); + } + if (!data) { + throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`); + } + return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + const base64Arg = inspect(base64, options); + const subTypeArg = inspect(this.sub_type, options); + return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`; + } +} +Binary.BSON_BINARY_SUBTYPE_DEFAULT = 0; +Binary.BUFFER_SIZE = 256; +Binary.SUBTYPE_DEFAULT = 0; +Binary.SUBTYPE_FUNCTION = 1; +Binary.SUBTYPE_BYTE_ARRAY = 2; +Binary.SUBTYPE_UUID_OLD = 3; +Binary.SUBTYPE_UUID = 4; +Binary.SUBTYPE_MD5 = 5; +Binary.SUBTYPE_ENCRYPTED = 6; +Binary.SUBTYPE_COLUMN = 7; +Binary.SUBTYPE_SENSITIVE = 8; +Binary.SUBTYPE_USER_DEFINED = 128; +const UUID_BYTE_LENGTH = 16; +const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i; +const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i; +class UUID extends Binary { + constructor(input) { + let bytes; + if (input == null) { + bytes = UUID.generate(); + } + else if (input instanceof UUID) { + bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer)); + } + else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) { + bytes = ByteUtils.toLocalBufferType(input); + } + else if (typeof input === 'string') { + bytes = UUID.bytesFromString(input); + } + else { + throw new BSONError('Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'); + } + super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW); + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + } + toHexString(includeDashes = true) { + if (includeDashes) { + return [ + ByteUtils.toHex(this.buffer.subarray(0, 4)), + ByteUtils.toHex(this.buffer.subarray(4, 6)), + ByteUtils.toHex(this.buffer.subarray(6, 8)), + ByteUtils.toHex(this.buffer.subarray(8, 10)), + ByteUtils.toHex(this.buffer.subarray(10, 16)) + ].join('-'); + } + return ByteUtils.toHex(this.buffer); + } + toString(encoding) { + if (encoding === 'hex') + return ByteUtils.toHex(this.id); + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + equals(otherId) { + if (!otherId) { + return false; + } + if (otherId instanceof UUID) { + return ByteUtils.equals(otherId.id, this.id); + } + try { + return ByteUtils.equals(new UUID(otherId).id, this.id); + } + catch { + return false; + } + } + toBinary() { + return new Binary(this.id, Binary.SUBTYPE_UUID); + } + static generate() { + const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH); + bytes[6] = (bytes[6] & 0x0f) | 0x40; + bytes[8] = (bytes[8] & 0x3f) | 0x80; + return bytes; + } + static isValid(input) { + if (!input) { + return false; + } + if (typeof input === 'string') { + return UUID.isValidUUIDString(input); + } + if (isUint8Array(input)) { + return input.byteLength === UUID_BYTE_LENGTH; + } + return (input._bsontype === 'Binary' && + input.sub_type === this.SUBTYPE_UUID && + input.buffer.byteLength === 16); + } + static createFromHexString(hexString) { + const buffer = UUID.bytesFromString(hexString); + return new UUID(buffer); + } + static createFromBase64(base64) { + return new UUID(ByteUtils.fromBase64(base64)); + } + static bytesFromString(representation) { + if (!UUID.isValidUUIDString(representation)) { + throw new BSONError('UUID string representation must be 32 hex digits or canonical hyphenated representation'); + } + return ByteUtils.fromHex(representation.replace(/-/g, '')); + } + static isValidUUIDString(representation) { + return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new UUID(${inspect(this.toHexString(), options)})`; + } +} + +class Code extends BSONValue { + get _bsontype() { + return 'Code'; + } + constructor(code, scope) { + super(); + this.code = code.toString(); + this.scope = scope ?? null; + } + toJSON() { + if (this.scope != null) { + return { code: this.code, scope: this.scope }; + } + return { code: this.code }; + } + toExtendedJSON() { + if (this.scope) { + return { $code: this.code, $scope: this.scope }; + } + return { $code: this.code }; + } + static fromExtendedJSON(doc) { + return new Code(doc.$code, doc.$scope); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + let parametersString = inspect(this.code, options); + const multiLineFn = parametersString.includes('\n'); + if (this.scope != null) { + parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`; + } + const endingNewline = multiLineFn && this.scope === null; + return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`; + } +} + +function isDBRefLike(value) { + return (value != null && + typeof value === 'object' && + '$id' in value && + value.$id != null && + '$ref' in value && + typeof value.$ref === 'string' && + (!('$db' in value) || ('$db' in value && typeof value.$db === 'string'))); +} +class DBRef extends BSONValue { + get _bsontype() { + return 'DBRef'; + } + constructor(collection, oid, db, fields) { + super(); + const parts = collection.split('.'); + if (parts.length === 2) { + db = parts.shift(); + collection = parts.shift(); + } + this.collection = collection; + this.oid = oid; + this.db = db; + this.fields = fields || {}; + } + get namespace() { + return this.collection; + } + set namespace(value) { + this.collection = value; + } + toJSON() { + const o = Object.assign({ + $ref: this.collection, + $id: this.oid + }, this.fields); + if (this.db != null) + o.$db = this.db; + return o; + } + toExtendedJSON(options) { + options = options || {}; + let o = { + $ref: this.collection, + $id: this.oid + }; + if (options.legacy) { + return o; + } + if (this.db) + o.$db = this.db; + o = Object.assign(o, this.fields); + return o; + } + static fromExtendedJSON(doc) { + const copy = Object.assign({}, doc); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(doc.$ref, doc.$id, doc.$db, copy); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const args = [ + inspect(this.namespace, options), + inspect(this.oid, options), + ...(this.db ? [inspect(this.db, options)] : []), + ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : []) + ]; + args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1]; + return `new DBRef(${args.join(', ')})`; + } +} + +function removeLeadingZerosAndExplicitPlus(str) { + if (str === '') { + return str; + } + let startIndex = 0; + const isNegative = str[startIndex] === '-'; + const isExplicitlyPositive = str[startIndex] === '+'; + if (isExplicitlyPositive || isNegative) { + startIndex += 1; + } + let foundInsignificantZero = false; + for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) { + foundInsignificantZero = true; + } + if (!foundInsignificantZero) { + return isExplicitlyPositive ? str.slice(1) : str; + } + return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`; +} +function validateStringCharacters(str, radix) { + radix = radix ?? 10; + const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix); + const regex = new RegExp(`[^-+${validCharacters}]`, 'i'); + return regex.test(str) ? false : str; +} + +let wasm = undefined; +try { + wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])), {}).exports; +} +catch { +} +const TWO_PWR_16_DBL = 1 << 16; +const TWO_PWR_24_DBL = 1 << 24; +const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL; +const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL; +const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2; +const INT_CACHE = {}; +const UINT_CACHE = {}; +const MAX_INT64_STRING_LENGTH = 20; +const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/; +class Long extends BSONValue { + get _bsontype() { + return 'Long'; + } + get __isLong__() { + return true; + } + constructor(lowOrValue = 0, highOrUnsigned, unsigned) { + super(); + const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned); + const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0; + const res = typeof lowOrValue === 'string' + ? Long.fromString(lowOrValue, unsignedBool) + : typeof lowOrValue === 'bigint' + ? Long.fromBigInt(lowOrValue, unsignedBool) + : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool }; + this.low = res.low; + this.high = res.high; + this.unsigned = res.unsigned; + } + static fromBits(lowBits, highBits, unsigned) { + return new Long(lowBits, highBits, unsigned); + } + static fromInt(value, unsigned) { + let obj, cachedObj, cache; + if (unsigned) { + value >>>= 0; + if ((cache = 0 <= value && value < 256)) { + cachedObj = UINT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true); + if (cache) + UINT_CACHE[value] = obj; + return obj; + } + else { + value |= 0; + if ((cache = -128 <= value && value < 128)) { + cachedObj = INT_CACHE[value]; + if (cachedObj) + return cachedObj; + } + obj = Long.fromBits(value, value < 0 ? -1 : 0, false); + if (cache) + INT_CACHE[value] = obj; + return obj; + } + } + static fromNumber(value, unsigned) { + if (isNaN(value)) + return unsigned ? Long.UZERO : Long.ZERO; + if (unsigned) { + if (value < 0) + return Long.UZERO; + if (value >= TWO_PWR_64_DBL) + return Long.MAX_UNSIGNED_VALUE; + } + else { + if (value <= -TWO_PWR_63_DBL) + return Long.MIN_VALUE; + if (value + 1 >= TWO_PWR_63_DBL) + return Long.MAX_VALUE; + } + if (value < 0) + return Long.fromNumber(-value, unsigned).neg(); + return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned); + } + static fromBigInt(value, unsigned) { + const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff); + const FROM_BIGINT_BIT_SHIFT = BigInt(32); + return new Long(Number(value & FROM_BIGINT_BIT_MASK), Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), unsigned); + } + static _fromString(str, unsigned, radix) { + if (str.length === 0) + throw new BSONError('empty string'); + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + let p; + if ((p = str.indexOf('-')) > 0) + throw new BSONError('interior hyphen'); + else if (p === 0) { + return Long._fromString(str.substring(1), unsigned, radix).neg(); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 8)); + let result = Long.ZERO; + for (let i = 0; i < str.length; i += 8) { + const size = Math.min(8, str.length - i), value = parseInt(str.substring(i, i + size), radix); + if (size < 8) { + const power = Long.fromNumber(Math.pow(radix, size)); + result = result.mul(power).add(Long.fromNumber(value)); + } + else { + result = result.mul(radixToPower); + result = result.add(Long.fromNumber(value)); + } + } + result.unsigned = unsigned; + return result; + } + static fromStringStrict(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str.trim() !== str) { + throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`); + } + if (!validateStringCharacters(str, radix)) { + throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`); + } + const cleanedStr = removeLeadingZerosAndExplicitPlus(str); + const result = Long._fromString(cleanedStr, unsigned, radix); + if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) { + throw new BSONError(`Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}`); + } + return result; + } + static fromString(str, unsignedOrRadix, radix) { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } + else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str === 'NaN' && radix < 24) { + return Long.ZERO; + } + else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) { + return Long.ZERO; + } + return Long._fromString(str, unsigned, radix); + } + static fromBytes(bytes, unsigned, le) { + return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned); + } + static fromBytesLE(bytes, unsigned) { + return new Long(bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), unsigned); + } + static fromBytesBE(bytes, unsigned) { + return new Long((bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], unsigned); + } + static isLong(value) { + return (value != null && + typeof value === 'object' && + '__isLong__' in value && + value.__isLong__ === true); + } + static fromValue(val, unsigned) { + if (typeof val === 'number') + return Long.fromNumber(val, unsigned); + if (typeof val === 'string') + return Long.fromString(val, unsigned); + return Long.fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned); + } + add(addend) { + if (!Long.isLong(addend)) + addend = Long.fromValue(addend); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = addend.high >>> 16; + const b32 = addend.high & 0xffff; + const b16 = addend.low >>> 16; + const b00 = addend.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 + b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 + b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 + b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 + b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + and(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned); + } + compare(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.eq(other)) + return 0; + const thisNeg = this.isNegative(), otherNeg = other.isNegative(); + if (thisNeg && !otherNeg) + return -1; + if (!thisNeg && otherNeg) + return 1; + if (!this.unsigned) + return this.sub(other).isNegative() ? -1 : 1; + return other.high >>> 0 > this.high >>> 0 || + (other.high === this.high && other.low >>> 0 > this.low >>> 0) + ? -1 + : 1; + } + comp(other) { + return this.compare(other); + } + divide(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (divisor.isZero()) + throw new BSONError('division by zero'); + if (wasm) { + if (!this.unsigned && + this.high === -0x80000000 && + divisor.low === -1 && + divisor.high === -1) { + return this; + } + const low = (this.unsigned ? wasm.div_u : wasm.div_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (this.isZero()) + return this.unsigned ? Long.UZERO : Long.ZERO; + let approx, rem, res; + if (!this.unsigned) { + if (this.eq(Long.MIN_VALUE)) { + if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) + return Long.MIN_VALUE; + else if (divisor.eq(Long.MIN_VALUE)) + return Long.ONE; + else { + const halfThis = this.shr(1); + approx = halfThis.div(divisor).shl(1); + if (approx.eq(Long.ZERO)) { + return divisor.isNegative() ? Long.ONE : Long.NEG_ONE; + } + else { + rem = this.sub(divisor.mul(approx)); + res = approx.add(rem.div(divisor)); + return res; + } + } + } + else if (divisor.eq(Long.MIN_VALUE)) + return this.unsigned ? Long.UZERO : Long.ZERO; + if (this.isNegative()) { + if (divisor.isNegative()) + return this.neg().div(divisor.neg()); + return this.neg().div(divisor).neg(); + } + else if (divisor.isNegative()) + return this.div(divisor.neg()).neg(); + res = Long.ZERO; + } + else { + if (!divisor.unsigned) + divisor = divisor.toUnsigned(); + if (divisor.gt(this)) + return Long.UZERO; + if (divisor.gt(this.shru(1))) + return Long.UONE; + res = Long.UZERO; + } + rem = this; + while (rem.gte(divisor)) { + approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber())); + const log2 = Math.ceil(Math.log(approx) / Math.LN2); + const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48); + let approxRes = Long.fromNumber(approx); + let approxRem = approxRes.mul(divisor); + while (approxRem.isNegative() || approxRem.gt(rem)) { + approx -= delta; + approxRes = Long.fromNumber(approx, this.unsigned); + approxRem = approxRes.mul(divisor); + } + if (approxRes.isZero()) + approxRes = Long.ONE; + res = res.add(approxRes); + rem = rem.sub(approxRem); + } + return res; + } + div(divisor) { + return this.divide(divisor); + } + equals(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1) + return false; + return this.high === other.high && this.low === other.low; + } + eq(other) { + return this.equals(other); + } + getHighBits() { + return this.high; + } + getHighBitsUnsigned() { + return this.high >>> 0; + } + getLowBits() { + return this.low; + } + getLowBitsUnsigned() { + return this.low >>> 0; + } + getNumBitsAbs() { + if (this.isNegative()) { + return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs(); + } + const val = this.high !== 0 ? this.high : this.low; + let bit; + for (bit = 31; bit > 0; bit--) + if ((val & (1 << bit)) !== 0) + break; + return this.high !== 0 ? bit + 33 : bit + 1; + } + greaterThan(other) { + return this.comp(other) > 0; + } + gt(other) { + return this.greaterThan(other); + } + greaterThanOrEqual(other) { + return this.comp(other) >= 0; + } + gte(other) { + return this.greaterThanOrEqual(other); + } + ge(other) { + return this.greaterThanOrEqual(other); + } + isEven() { + return (this.low & 1) === 0; + } + isNegative() { + return !this.unsigned && this.high < 0; + } + isOdd() { + return (this.low & 1) === 1; + } + isPositive() { + return this.unsigned || this.high >= 0; + } + isZero() { + return this.high === 0 && this.low === 0; + } + lessThan(other) { + return this.comp(other) < 0; + } + lt(other) { + return this.lessThan(other); + } + lessThanOrEqual(other) { + return this.comp(other) <= 0; + } + lte(other) { + return this.lessThanOrEqual(other); + } + modulo(divisor) { + if (!Long.isLong(divisor)) + divisor = Long.fromValue(divisor); + if (wasm) { + const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(this.low, this.high, divisor.low, divisor.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + return this.sub(this.div(divisor).mul(divisor)); + } + mod(divisor) { + return this.modulo(divisor); + } + rem(divisor) { + return this.modulo(divisor); + } + multiply(multiplier) { + if (this.isZero()) + return Long.ZERO; + if (!Long.isLong(multiplier)) + multiplier = Long.fromValue(multiplier); + if (wasm) { + const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + if (multiplier.isZero()) + return Long.ZERO; + if (this.eq(Long.MIN_VALUE)) + return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (multiplier.eq(Long.MIN_VALUE)) + return this.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (this.isNegative()) { + if (multiplier.isNegative()) + return this.neg().mul(multiplier.neg()); + else + return this.neg().mul(multiplier).neg(); + } + else if (multiplier.isNegative()) + return this.mul(multiplier.neg()).neg(); + if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24)) + return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned); + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + const b48 = multiplier.high >>> 16; + const b32 = multiplier.high & 0xffff; + const b16 = multiplier.low >>> 16; + const b00 = multiplier.low & 0xffff; + let c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 * b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 * b00; + c32 += c16 >>> 16; + c16 &= 0xffff; + c16 += a00 * b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 * b00; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a16 * b16; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a00 * b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + mul(multiplier) { + return this.multiply(multiplier); + } + negate() { + if (!this.unsigned && this.eq(Long.MIN_VALUE)) + return Long.MIN_VALUE; + return this.not().add(Long.ONE); + } + neg() { + return this.negate(); + } + not() { + return Long.fromBits(~this.low, ~this.high, this.unsigned); + } + notEquals(other) { + return !this.equals(other); + } + neq(other) { + return this.notEquals(other); + } + ne(other) { + return this.notEquals(other); + } + or(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned); + } + shiftLeft(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned); + else + return Long.fromBits(0, this.low << (numBits - 32), this.unsigned); + } + shl(numBits) { + return this.shiftLeft(numBits); + } + shiftRight(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + if ((numBits &= 63) === 0) + return this; + else if (numBits < 32) + return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned); + else + return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned); + } + shr(numBits) { + return this.shiftRight(numBits); + } + shiftRightUnsigned(numBits) { + if (Long.isLong(numBits)) + numBits = numBits.toInt(); + numBits &= 63; + if (numBits === 0) + return this; + else { + const high = this.high; + if (numBits < 32) { + const low = this.low; + return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned); + } + else if (numBits === 32) + return Long.fromBits(high, 0, this.unsigned); + else + return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned); + } + } + shr_u(numBits) { + return this.shiftRightUnsigned(numBits); + } + shru(numBits) { + return this.shiftRightUnsigned(numBits); + } + subtract(subtrahend) { + if (!Long.isLong(subtrahend)) + subtrahend = Long.fromValue(subtrahend); + return this.add(subtrahend.neg()); + } + sub(subtrahend) { + return this.subtract(subtrahend); + } + toInt() { + return this.unsigned ? this.low >>> 0 : this.low; + } + toNumber() { + if (this.unsigned) + return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0); + return this.high * TWO_PWR_32_DBL + (this.low >>> 0); + } + toBigInt() { + return BigInt(this.toString()); + } + toBytes(le) { + return le ? this.toBytesLE() : this.toBytesBE(); + } + toBytesLE() { + const hi = this.high, lo = this.low; + return [ + lo & 0xff, + (lo >>> 8) & 0xff, + (lo >>> 16) & 0xff, + lo >>> 24, + hi & 0xff, + (hi >>> 8) & 0xff, + (hi >>> 16) & 0xff, + hi >>> 24 + ]; + } + toBytesBE() { + const hi = this.high, lo = this.low; + return [ + hi >>> 24, + (hi >>> 16) & 0xff, + (hi >>> 8) & 0xff, + hi & 0xff, + lo >>> 24, + (lo >>> 16) & 0xff, + (lo >>> 8) & 0xff, + lo & 0xff + ]; + } + toSigned() { + if (!this.unsigned) + return this; + return Long.fromBits(this.low, this.high, false); + } + toString(radix) { + radix = radix || 10; + if (radix < 2 || 36 < radix) + throw new BSONError('radix'); + if (this.isZero()) + return '0'; + if (this.isNegative()) { + if (this.eq(Long.MIN_VALUE)) { + const radixLong = Long.fromNumber(radix), div = this.div(radixLong), rem1 = div.mul(radixLong).sub(this); + return div.toString(radix) + rem1.toInt().toString(radix); + } + else + return '-' + this.neg().toString(radix); + } + const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned); + let rem = this; + let result = ''; + while (true) { + const remDiv = rem.div(radixToPower); + const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0; + let digits = intval.toString(radix); + rem = remDiv; + if (rem.isZero()) { + return digits + result; + } + else { + while (digits.length < 6) + digits = '0' + digits; + result = '' + digits + result; + } + } + } + toUnsigned() { + if (this.unsigned) + return this; + return Long.fromBits(this.low, this.high, true); + } + xor(other) { + if (!Long.isLong(other)) + other = Long.fromValue(other); + return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned); + } + eqz() { + return this.isZero(); + } + le(other) { + return this.lessThanOrEqual(other); + } + toExtendedJSON(options) { + if (options && options.relaxed) + return this.toNumber(); + return { $numberLong: this.toString() }; + } + static fromExtendedJSON(doc, options) { + const { useBigInt64 = false, relaxed = true } = { ...options }; + if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) { + throw new BSONError('$numberLong string is too long'); + } + if (!DECIMAL_REG_EX.test(doc.$numberLong)) { + throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`); + } + if (useBigInt64) { + const bigIntResult = BigInt(doc.$numberLong); + return BigInt.asIntN(64, bigIntResult); + } + const longResult = Long.fromString(doc.$numberLong); + if (relaxed) { + return longResult.toNumber(); + } + return longResult; + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const longVal = inspect(this.toString(), options); + const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : ''; + return `new Long(${longVal}${unsignedVal})`; + } +} +Long.TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL); +Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true); +Long.ZERO = Long.fromInt(0); +Long.UZERO = Long.fromInt(0, true); +Long.ONE = Long.fromInt(1); +Long.UONE = Long.fromInt(1, true); +Long.NEG_ONE = Long.fromInt(-1); +Long.MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false); +Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false); + +const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/; +const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i; +const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i; +const EXPONENT_MAX = 6111; +const EXPONENT_MIN = -6176; +const EXPONENT_BIAS = 6176; +const MAX_DIGITS = 34; +const NAN_BUFFER = ByteUtils.fromNumberArray([ + 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray([ + 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray([ + 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +].reverse()); +const EXPONENT_REGEX = /^([-+])?(\d+)?$/; +const COMBINATION_MASK = 0x1f; +const EXPONENT_MASK = 0x3fff; +const COMBINATION_INFINITY = 30; +const COMBINATION_NAN = 31; +function isDigit(value) { + return !isNaN(parseInt(value, 10)); +} +function divideu128(value) { + const DIVISOR = Long.fromNumber(1000 * 1000 * 1000); + let _rem = Long.fromNumber(0); + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) { + return { quotient: value, rem: _rem }; + } + for (let i = 0; i <= 3; i++) { + _rem = _rem.shiftLeft(32); + _rem = _rem.add(new Long(value.parts[i], 0)); + value.parts[i] = _rem.div(DIVISOR).low; + _rem = _rem.modulo(DIVISOR); + } + return { quotient: value, rem: _rem }; +} +function multiply64x2(left, right) { + if (!left && !right) { + return { high: Long.fromNumber(0), low: Long.fromNumber(0) }; + } + const leftHigh = left.shiftRightUnsigned(32); + const leftLow = new Long(left.getLowBits(), 0); + const rightHigh = right.shiftRightUnsigned(32); + const rightLow = new Long(right.getLowBits(), 0); + let productHigh = leftHigh.multiply(rightHigh); + let productMid = leftHigh.multiply(rightLow); + const productMid2 = leftLow.multiply(rightHigh); + let productLow = leftLow.multiply(rightLow); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productMid = new Long(productMid.getLowBits(), 0) + .add(productMid2) + .add(productLow.shiftRightUnsigned(32)); + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0)); + return { high: productHigh, low: productLow }; +} +function lessThan(left, right) { + const uhleft = left.high >>> 0; + const uhright = right.high >>> 0; + if (uhleft < uhright) { + return true; + } + else if (uhleft === uhright) { + const ulleft = left.low >>> 0; + const ulright = right.low >>> 0; + if (ulleft < ulright) + return true; + } + return false; +} +function invalidErr(string, message) { + throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`); +} +class Decimal128 extends BSONValue { + get _bsontype() { + return 'Decimal128'; + } + constructor(bytes) { + super(); + if (typeof bytes === 'string') { + this.bytes = Decimal128.fromString(bytes).bytes; + } + else if (isUint8Array(bytes)) { + if (bytes.byteLength !== 16) { + throw new BSONError('Decimal128 must take a Buffer of 16 bytes'); + } + this.bytes = bytes; + } + else { + throw new BSONError('Decimal128 must take a Buffer or string'); + } + } + static fromString(representation) { + return Decimal128._fromString(representation, { allowRounding: false }); + } + static fromStringWithRounding(representation) { + return Decimal128._fromString(representation, { allowRounding: true }); + } + static _fromString(representation, options) { + let isNegative = false; + let sawSign = false; + let sawRadix = false; + let foundNonZero = false; + let significantDigits = 0; + let nDigitsRead = 0; + let nDigits = 0; + let radixPosition = 0; + let firstNonZero = 0; + const digits = [0]; + let nDigitsStored = 0; + let digitsInsert = 0; + let lastDigit = 0; + let exponent = 0; + let significandHigh = new Long(0, 0); + let significandLow = new Long(0, 0); + let biasedExponent = 0; + let index = 0; + if (representation.length >= 7000) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + const stringMatch = representation.match(PARSE_STRING_REGEXP); + const infMatch = representation.match(PARSE_INF_REGEXP); + const nanMatch = representation.match(PARSE_NAN_REGEXP); + if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + if (stringMatch) { + const unsignedNumber = stringMatch[2]; + const e = stringMatch[4]; + const expSign = stringMatch[5]; + const expNumber = stringMatch[6]; + if (e && expNumber === undefined) + invalidErr(representation, 'missing exponent power'); + if (e && unsignedNumber === undefined) + invalidErr(representation, 'missing exponent base'); + if (e === undefined && (expSign || expNumber)) { + invalidErr(representation, 'missing e before exponent'); + } + } + if (representation[index] === '+' || representation[index] === '-') { + sawSign = true; + isNegative = representation[index++] === '-'; + } + if (!isDigit(representation[index]) && representation[index] !== '.') { + if (representation[index] === 'i' || representation[index] === 'I') { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + else if (representation[index] === 'N') { + return new Decimal128(NAN_BUFFER); + } + } + while (isDigit(representation[index]) || representation[index] === '.') { + if (representation[index] === '.') { + if (sawRadix) + invalidErr(representation, 'contains multiple periods'); + sawRadix = true; + index = index + 1; + continue; + } + if (nDigitsStored < MAX_DIGITS) { + if (representation[index] !== '0' || foundNonZero) { + if (!foundNonZero) { + firstNonZero = nDigitsRead; + } + foundNonZero = true; + digits[digitsInsert++] = parseInt(representation[index], 10); + nDigitsStored = nDigitsStored + 1; + } + } + if (foundNonZero) + nDigits = nDigits + 1; + if (sawRadix) + radixPosition = radixPosition + 1; + nDigitsRead = nDigitsRead + 1; + index = index + 1; + } + if (sawRadix && !nDigitsRead) + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + if (representation[index] === 'e' || representation[index] === 'E') { + const match = representation.substr(++index).match(EXPONENT_REGEX); + if (!match || !match[2]) + return new Decimal128(NAN_BUFFER); + exponent = parseInt(match[0], 10); + index = index + match[0].length; + } + if (representation[index]) + return new Decimal128(NAN_BUFFER); + if (!nDigitsStored) { + digits[0] = 0; + nDigits = 1; + nDigitsStored = 1; + significantDigits = 0; + } + else { + lastDigit = nDigitsStored - 1; + significantDigits = nDigits; + if (significantDigits !== 1) { + while (representation[firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix)] === '0') { + significantDigits = significantDigits - 1; + } + } + } + if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) { + exponent = EXPONENT_MIN; + } + else { + exponent = exponent - radixPosition; + } + while (exponent > EXPONENT_MAX) { + lastDigit = lastDigit + 1; + if (lastDigit >= MAX_DIGITS) { + if (significantDigits === 0) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + exponent = exponent - 1; + } + if (options.allowRounding) { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0 && significantDigits < nDigitsStored) { + exponent = EXPONENT_MIN; + significantDigits = 0; + break; + } + if (nDigitsStored < nDigits) { + nDigits = nDigits - 1; + } + else { + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + const digitsString = digits.join(''); + if (digitsString.match(/^0+$/)) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + let endOfString = nDigitsRead; + if (sawRadix) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + let roundBit = 0; + if (roundDigit >= 5) { + roundBit = 1; + if (roundDigit === 5) { + roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0; + for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) { + if (parseInt(representation[i], 10)) { + roundBit = 1; + break; + } + } + } + } + if (roundBit) { + let dIdx = lastDigit; + for (; dIdx >= 0; dIdx--) { + if (++digits[dIdx] > 9) { + digits[dIdx] = 0; + if (dIdx === 0) { + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + digits[dIdx] = 1; + } + else { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + } + } + else { + break; + } + } + } + } + } + else { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + if (lastDigit === 0) { + if (significantDigits === 0) { + exponent = EXPONENT_MIN; + break; + } + invalidErr(representation, 'exponent underflow'); + } + if (nDigitsStored < nDigits) { + if (representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' && + significantDigits !== 0) { + invalidErr(representation, 'inexact rounding'); + } + nDigits = nDigits - 1; + } + else { + if (digits[lastDigit] !== 0) { + invalidErr(representation, 'inexact rounding'); + } + lastDigit = lastDigit - 1; + } + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } + else { + invalidErr(representation, 'overflow'); + } + } + if (lastDigit + 1 < significantDigits) { + if (sawRadix) { + firstNonZero = firstNonZero + 1; + } + if (sawSign) { + firstNonZero = firstNonZero + 1; + } + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + if (roundDigit !== 0) { + invalidErr(representation, 'inexact rounding'); + } + } + } + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + if (significantDigits === 0) { + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + } + else if (lastDigit < 17) { + let dIdx = 0; + significandLow = Long.fromNumber(digits[dIdx++]); + significandHigh = new Long(0, 0); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + else { + let dIdx = 0; + significandHigh = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit - 17; dIdx++) { + significandHigh = significandHigh.multiply(Long.fromNumber(10)); + significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx])); + } + significandLow = Long.fromNumber(digits[dIdx++]); + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000')); + significand.low = significand.low.add(significandLow); + if (lessThan(significand.low, significandLow)) { + significand.high = significand.high.add(Long.fromNumber(1)); + } + biasedExponent = exponent + EXPONENT_BIAS; + const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) }; + if (significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))) { + dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61)); + dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff))); + } + else { + dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49)); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff))); + } + dec.low = significand.low; + if (isNegative) { + dec.high = dec.high.or(Long.fromString('9223372036854775808')); + } + const buffer = ByteUtils.allocateUnsafe(16); + index = 0; + buffer[index++] = dec.low.low & 0xff; + buffer[index++] = (dec.low.low >> 8) & 0xff; + buffer[index++] = (dec.low.low >> 16) & 0xff; + buffer[index++] = (dec.low.low >> 24) & 0xff; + buffer[index++] = dec.low.high & 0xff; + buffer[index++] = (dec.low.high >> 8) & 0xff; + buffer[index++] = (dec.low.high >> 16) & 0xff; + buffer[index++] = (dec.low.high >> 24) & 0xff; + buffer[index++] = dec.high.low & 0xff; + buffer[index++] = (dec.high.low >> 8) & 0xff; + buffer[index++] = (dec.high.low >> 16) & 0xff; + buffer[index++] = (dec.high.low >> 24) & 0xff; + buffer[index++] = dec.high.high & 0xff; + buffer[index++] = (dec.high.high >> 8) & 0xff; + buffer[index++] = (dec.high.high >> 16) & 0xff; + buffer[index++] = (dec.high.high >> 24) & 0xff; + return new Decimal128(buffer); + } + toString() { + let biased_exponent; + let significand_digits = 0; + const significand = new Array(36); + for (let i = 0; i < significand.length; i++) + significand[i] = 0; + let index = 0; + let is_zero = false; + let significand_msb; + let significand128 = { parts: [0, 0, 0, 0] }; + let j, k; + const string = []; + index = 0; + const buffer = this.bytes; + const low = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midl = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const midh = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + const high = buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + index = 0; + const dec = { + low: new Long(low, midl), + high: new Long(midh, high) + }; + if (dec.high.lessThan(Long.ZERO)) { + string.push('-'); + } + const combination = (high >> 26) & COMBINATION_MASK; + if (combination >> 3 === 3) { + if (combination === COMBINATION_INFINITY) { + return string.join('') + 'Infinity'; + } + else if (combination === COMBINATION_NAN) { + return 'NaN'; + } + else { + biased_exponent = (high >> 15) & EXPONENT_MASK; + significand_msb = 0x08 + ((high >> 14) & 0x01); + } + } + else { + significand_msb = (high >> 14) & 0x07; + biased_exponent = (high >> 17) & EXPONENT_MASK; + } + const exponent = biased_exponent - EXPONENT_BIAS; + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + if (significand128.parts[0] === 0 && + significand128.parts[1] === 0 && + significand128.parts[2] === 0 && + significand128.parts[3] === 0) { + is_zero = true; + } + else { + for (k = 3; k >= 0; k--) { + let least_digits = 0; + const result = divideu128(significand128); + significand128 = result.quotient; + least_digits = result.rem.low; + if (!least_digits) + continue; + for (j = 8; j >= 0; j--) { + significand[k * 9 + j] = least_digits % 10; + least_digits = Math.floor(least_digits / 10); + } + } + } + if (is_zero) { + significand_digits = 1; + significand[index] = 0; + } + else { + significand_digits = 36; + while (!significand[index]) { + significand_digits = significand_digits - 1; + index = index + 1; + } + } + const scientific_exponent = significand_digits - 1 + exponent; + if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) { + if (significand_digits > 34) { + string.push(`${0}`); + if (exponent > 0) + string.push(`E+${exponent}`); + else if (exponent < 0) + string.push(`E${exponent}`); + return string.join(''); + } + string.push(`${significand[index++]}`); + significand_digits = significand_digits - 1; + if (significand_digits) { + string.push('.'); + } + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + string.push('E'); + if (scientific_exponent > 0) { + string.push(`+${scientific_exponent}`); + } + else { + string.push(`${scientific_exponent}`); + } + } + else { + if (exponent >= 0) { + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + } + else { + let radix_position = significand_digits + exponent; + if (radix_position > 0) { + for (let i = 0; i < radix_position; i++) { + string.push(`${significand[index++]}`); + } + } + else { + string.push('0'); + } + string.push('.'); + while (radix_position++ < 0) { + string.push('0'); + } + for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) { + string.push(`${significand[index++]}`); + } + } + } + return string.join(''); + } + toJSON() { + return { $numberDecimal: this.toString() }; + } + toExtendedJSON() { + return { $numberDecimal: this.toString() }; + } + static fromExtendedJSON(doc) { + return Decimal128.fromString(doc.$numberDecimal); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const d128string = inspect(this.toString(), options); + return `new Decimal128(${d128string})`; + } +} + +class Double extends BSONValue { + get _bsontype() { + return 'Double'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value; + } + static fromString(value) { + const coercedValue = Number(value); + if (value === 'NaN') + return new Double(NaN); + if (value === 'Infinity') + return new Double(Infinity); + if (value === '-Infinity') + return new Double(-Infinity); + if (!Number.isFinite(coercedValue)) { + throw new BSONError(`Input: ${value} is not representable as a Double`); + } + if (value.trim() !== value) { + throw new BSONError(`Input: '${value}' contains whitespace`); + } + if (value === '') { + throw new BSONError(`Input is an empty string`); + } + if (/[^-0-9.+eE]/.test(value)) { + throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`); + } + return new Double(coercedValue); + } + valueOf() { + return this.value; + } + toJSON() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toExtendedJSON(options) { + if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) { + return this.value; + } + if (Object.is(Math.sign(this.value), -0)) { + return { $numberDouble: '-0.0' }; + } + return { + $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString() + }; + } + static fromExtendedJSON(doc, options) { + const doubleValue = parseFloat(doc.$numberDouble); + return options && options.relaxed ? doubleValue : new Double(doubleValue); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Double(${inspect(this.value, options)})`; + } +} + +class Int32 extends BSONValue { + get _bsontype() { + return 'Int32'; + } + constructor(value) { + super(); + if (value instanceof Number) { + value = value.valueOf(); + } + this.value = +value | 0; + } + static fromString(value) { + const cleanedValue = removeLeadingZerosAndExplicitPlus(value); + const coercedValue = Number(value); + if (BSON_INT32_MAX < coercedValue) { + throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`); + } + else if (BSON_INT32_MIN > coercedValue) { + throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`); + } + else if (!Number.isSafeInteger(coercedValue)) { + throw new BSONError(`Input: '${value}' is not a safe integer`); + } + else if (coercedValue.toString() !== cleanedValue) { + throw new BSONError(`Input: '${value}' is not a valid Int32 string`); + } + return new Int32(coercedValue); + } + valueOf() { + return this.value; + } + toString(radix) { + return this.value.toString(radix); + } + toJSON() { + return this.value; + } + toExtendedJSON(options) { + if (options && (options.relaxed || options.legacy)) + return this.value; + return { $numberInt: this.value.toString() }; + } + static fromExtendedJSON(doc, options) { + return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new Int32(${inspect(this.value, options)})`; + } +} + +class MaxKey extends BSONValue { + get _bsontype() { + return 'MaxKey'; + } + toExtendedJSON() { + return { $maxKey: 1 }; + } + static fromExtendedJSON() { + return new MaxKey(); + } + inspect() { + return 'new MaxKey()'; + } +} + +class MinKey extends BSONValue { + get _bsontype() { + return 'MinKey'; + } + toExtendedJSON() { + return { $minKey: 1 }; + } + static fromExtendedJSON() { + return new MinKey(); + } + inspect() { + return 'new MinKey()'; + } +} + +const FLOAT = new Float64Array(1); +const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8); +FLOAT[0] = -1; +const isBigEndian = FLOAT_BYTES[7] === 0; +const NumberUtils = { + getNonnegativeInt32LE(source, offset) { + if (source[offset + 3] > 127) { + throw new RangeError(`Size cannot be negative at offset: ${offset}`); + } + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getInt32LE(source, offset) { + return (source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24)); + }, + getUint32LE(source, offset) { + return (source[offset] + + source[offset + 1] * 256 + + source[offset + 2] * 65536 + + source[offset + 3] * 16777216); + }, + getUint32BE(source, offset) { + return (source[offset + 3] + + source[offset + 2] * 256 + + source[offset + 1] * 65536 + + source[offset] * 16777216); + }, + getBigInt64LE(source, offset) { + const lo = NumberUtils.getUint32LE(source, offset); + const hi = NumberUtils.getUint32LE(source, offset + 4); + return (BigInt(hi) << BigInt(32)) + BigInt(lo); + }, + getFloat64LE: isBigEndian + ? (source, offset) => { + FLOAT_BYTES[7] = source[offset]; + FLOAT_BYTES[6] = source[offset + 1]; + FLOAT_BYTES[5] = source[offset + 2]; + FLOAT_BYTES[4] = source[offset + 3]; + FLOAT_BYTES[3] = source[offset + 4]; + FLOAT_BYTES[2] = source[offset + 5]; + FLOAT_BYTES[1] = source[offset + 6]; + FLOAT_BYTES[0] = source[offset + 7]; + return FLOAT[0]; + } + : (source, offset) => { + FLOAT_BYTES[0] = source[offset]; + FLOAT_BYTES[1] = source[offset + 1]; + FLOAT_BYTES[2] = source[offset + 2]; + FLOAT_BYTES[3] = source[offset + 3]; + FLOAT_BYTES[4] = source[offset + 4]; + FLOAT_BYTES[5] = source[offset + 5]; + FLOAT_BYTES[6] = source[offset + 6]; + FLOAT_BYTES[7] = source[offset + 7]; + return FLOAT[0]; + }, + setInt32BE(destination, offset, value) { + destination[offset + 3] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset] = value; + return 4; + }, + setInt32LE(destination, offset, value) { + destination[offset] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 3] = value; + return 4; + }, + setBigInt64LE(destination, offset, value) { + const mask32bits = BigInt(4294967295); + let lo = Number(value & mask32bits); + destination[offset] = lo; + lo >>= 8; + destination[offset + 1] = lo; + lo >>= 8; + destination[offset + 2] = lo; + lo >>= 8; + destination[offset + 3] = lo; + let hi = Number((value >> BigInt(32)) & mask32bits); + destination[offset + 4] = hi; + hi >>= 8; + destination[offset + 5] = hi; + hi >>= 8; + destination[offset + 6] = hi; + hi >>= 8; + destination[offset + 7] = hi; + return 8; + }, + setFloat64LE: isBigEndian + ? (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[7]; + destination[offset + 1] = FLOAT_BYTES[6]; + destination[offset + 2] = FLOAT_BYTES[5]; + destination[offset + 3] = FLOAT_BYTES[4]; + destination[offset + 4] = FLOAT_BYTES[3]; + destination[offset + 5] = FLOAT_BYTES[2]; + destination[offset + 6] = FLOAT_BYTES[1]; + destination[offset + 7] = FLOAT_BYTES[0]; + return 8; + } + : (destination, offset, value) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[0]; + destination[offset + 1] = FLOAT_BYTES[1]; + destination[offset + 2] = FLOAT_BYTES[2]; + destination[offset + 3] = FLOAT_BYTES[3]; + destination[offset + 4] = FLOAT_BYTES[4]; + destination[offset + 5] = FLOAT_BYTES[5]; + destination[offset + 6] = FLOAT_BYTES[6]; + destination[offset + 7] = FLOAT_BYTES[7]; + return 8; + } +}; + +const checkForHexRegExp = new RegExp('^[0-9a-fA-F]{24}$'); +let PROCESS_UNIQUE = null; +class ObjectId extends BSONValue { + get _bsontype() { + return 'ObjectId'; + } + constructor(inputId) { + super(); + let workingId; + if (typeof inputId === 'object' && inputId && 'id' in inputId) { + if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) { + throw new BSONError('Argument passed in must have an id that is of type string or Buffer'); + } + if ('toHexString' in inputId && typeof inputId.toHexString === 'function') { + workingId = ByteUtils.fromHex(inputId.toHexString()); + } + else { + workingId = inputId.id; + } + } + else { + workingId = inputId; + } + if (workingId == null || typeof workingId === 'number') { + this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined); + } + else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) { + this.buffer = ByteUtils.toLocalBufferType(workingId); + } + else if (typeof workingId === 'string') { + if (workingId.length === 24 && checkForHexRegExp.test(workingId)) { + this.buffer = ByteUtils.fromHex(workingId); + } + else { + throw new BSONError('input must be a 24 character hex string, 12 byte Uint8Array, or an integer'); + } + } + else { + throw new BSONError('Argument passed in does not match the accepted types'); + } + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(this.id); + } + } + get id() { + return this.buffer; + } + set id(value) { + this.buffer = value; + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(value); + } + } + toHexString() { + if (ObjectId.cacheHexString && this.__id) { + return this.__id; + } + const hexString = ByteUtils.toHex(this.id); + if (ObjectId.cacheHexString && !this.__id) { + this.__id = hexString; + } + return hexString; + } + static getInc() { + return (ObjectId.index = (ObjectId.index + 1) % 0xffffff); + } + static generate(time) { + if ('number' !== typeof time) { + time = Math.floor(Date.now() / 1000); + } + const inc = ObjectId.getInc(); + const buffer = ByteUtils.allocateUnsafe(12); + NumberUtils.setInt32BE(buffer, 0, time); + if (PROCESS_UNIQUE === null) { + PROCESS_UNIQUE = ByteUtils.randomBytes(5); + } + buffer[4] = PROCESS_UNIQUE[0]; + buffer[5] = PROCESS_UNIQUE[1]; + buffer[6] = PROCESS_UNIQUE[2]; + buffer[7] = PROCESS_UNIQUE[3]; + buffer[8] = PROCESS_UNIQUE[4]; + buffer[11] = inc & 0xff; + buffer[10] = (inc >> 8) & 0xff; + buffer[9] = (inc >> 16) & 0xff; + return buffer; + } + toString(encoding) { + if (encoding === 'base64') + return ByteUtils.toBase64(this.id); + if (encoding === 'hex') + return this.toHexString(); + return this.toHexString(); + } + toJSON() { + return this.toHexString(); + } + static is(variable) { + return (variable != null && + typeof variable === 'object' && + '_bsontype' in variable && + variable._bsontype === 'ObjectId'); + } + equals(otherId) { + if (otherId === undefined || otherId === null) { + return false; + } + if (ObjectId.is(otherId)) { + return (this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer)); + } + if (typeof otherId === 'string') { + return otherId.toLowerCase() === this.toHexString(); + } + if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') { + const otherIdString = otherId.toHexString(); + const thisIdString = this.toHexString(); + return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString; + } + return false; + } + getTimestamp() { + const timestamp = new Date(); + const time = NumberUtils.getUint32BE(this.buffer, 0); + timestamp.setTime(Math.floor(time) * 1000); + return timestamp; + } + static createPk() { + return new ObjectId(); + } + serializeInto(uint8array, index) { + uint8array[index] = this.buffer[0]; + uint8array[index + 1] = this.buffer[1]; + uint8array[index + 2] = this.buffer[2]; + uint8array[index + 3] = this.buffer[3]; + uint8array[index + 4] = this.buffer[4]; + uint8array[index + 5] = this.buffer[5]; + uint8array[index + 6] = this.buffer[6]; + uint8array[index + 7] = this.buffer[7]; + uint8array[index + 8] = this.buffer[8]; + uint8array[index + 9] = this.buffer[9]; + uint8array[index + 10] = this.buffer[10]; + uint8array[index + 11] = this.buffer[11]; + return 12; + } + static createFromTime(time) { + const buffer = ByteUtils.allocate(12); + for (let i = 11; i >= 4; i--) + buffer[i] = 0; + NumberUtils.setInt32BE(buffer, 0, time); + return new ObjectId(buffer); + } + static createFromHexString(hexString) { + if (hexString?.length !== 24) { + throw new BSONError('hex string must be 24 characters'); + } + return new ObjectId(ByteUtils.fromHex(hexString)); + } + static createFromBase64(base64) { + if (base64?.length !== 16) { + throw new BSONError('base64 string must be 16 characters'); + } + return new ObjectId(ByteUtils.fromBase64(base64)); + } + static isValid(id) { + if (id == null) + return false; + try { + new ObjectId(id); + return true; + } + catch { + return false; + } + } + toExtendedJSON() { + if (this.toHexString) + return { $oid: this.toHexString() }; + return { $oid: this.toString('hex') }; + } + static fromExtendedJSON(doc) { + return new ObjectId(doc.$oid); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new ObjectId(${inspect(this.toHexString(), options)})`; + } +} +ObjectId.index = Math.floor(Math.random() * 0xffffff); + +function internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined) { + let totalLength = 4 + 1; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined); + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + } + for (const key of Object.keys(object)) { + totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined); + } + } + return totalLength; +} +function calculateElement(name, value, serializeFunctions = false, isArray = false, ignoreUndefined = false) { + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + switch (typeof value) { + case 'string': + return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1; + case 'number': + if (Math.floor(value) === value && + value >= JS_INT_MIN && + value <= JS_INT_MAX) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1); + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + } + else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + case 'undefined': + if (isArray || !ignoreUndefined) + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + return 0; + case 'boolean': + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1); + case 'object': + if (value != null && + typeof value._bsontype === 'string' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + } + else if (value._bsontype === 'ObjectId') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1); + } + else if (value instanceof Date || isDate(value)) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (ArrayBuffer.isView(value) || + value instanceof ArrayBuffer || + isAnyArrayBuffer(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength); + } + else if (value._bsontype === 'Long' || + value._bsontype === 'Double' || + value._bsontype === 'Timestamp') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + else if (value._bsontype === 'Decimal128') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1); + } + else if (value._bsontype === 'Code') { + if (value.scope != null && Object.keys(value.scope).length > 0) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1 + + internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1); + } + } + else if (value._bsontype === 'Binary') { + const binary = value; + if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + (binary.position + 1 + 4 + 1 + 4)); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1)); + } + } + else if (value._bsontype === 'Symbol') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + ByteUtils.utf8ByteLength(value.value) + + 4 + + 1 + + 1); + } + else if (value._bsontype === 'DBRef') { + const ordered_values = Object.assign({ + $ref: value.collection, + $id: value.oid + }, value.fields); + if (value.db != null) { + ordered_values['$db'] = value.db; + } + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined)); + } + else if (value instanceof RegExp || isRegExp(value)) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.source) + + 1 + + (value.global ? 1 : 0) + + (value.ignoreCase ? 1 : 0) + + (value.multiline ? 1 : 0) + + 1); + } + else if (value._bsontype === 'BSONRegExp') { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.pattern) + + 1 + + ByteUtils.utf8ByteLength(value.options) + + 1); + } + else { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) + + 1); + } + case 'function': + if (serializeFunctions) { + return ((name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.toString()) + + 1); + } + } + return 0; +} + +function alphabetize(str) { + return str.split('').sort().join(''); +} +class BSONRegExp extends BSONValue { + get _bsontype() { + return 'BSONRegExp'; + } + constructor(pattern, options) { + super(); + this.pattern = pattern; + this.options = alphabetize(options ?? ''); + if (this.pattern.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`); + } + if (this.options.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`); + } + for (let i = 0; i < this.options.length; i++) { + if (!(this.options[i] === 'i' || + this.options[i] === 'm' || + this.options[i] === 'x' || + this.options[i] === 'l' || + this.options[i] === 's' || + this.options[i] === 'u')) { + throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`); + } + } + } + static parseOptions(options) { + return options ? options.split('').sort().join('') : ''; + } + toExtendedJSON(options) { + options = options || {}; + if (options.legacy) { + return { $regex: this.pattern, $options: this.options }; + } + return { $regularExpression: { pattern: this.pattern, options: this.options } }; + } + static fromExtendedJSON(doc) { + if ('$regex' in doc) { + if (typeof doc.$regex !== 'string') { + if (doc.$regex._bsontype === 'BSONRegExp') { + return doc; + } + } + else { + return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options)); + } + } + if ('$regularExpression' in doc) { + return new BSONRegExp(doc.$regularExpression.pattern, BSONRegExp.parseOptions(doc.$regularExpression.options)); + } + throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`); + } + inspect(depth, options, inspect) { + const stylize = getStylizeFunction(options) ?? (v => v); + inspect ??= defaultInspect; + const pattern = stylize(inspect(this.pattern), 'regexp'); + const flags = stylize(inspect(this.options), 'regexp'); + return `new BSONRegExp(${pattern}, ${flags})`; + } +} + +class BSONSymbol extends BSONValue { + get _bsontype() { + return 'BSONSymbol'; + } + constructor(value) { + super(); + this.value = value; + } + valueOf() { + return this.value; + } + toString() { + return this.value; + } + toJSON() { + return this.value; + } + toExtendedJSON() { + return { $symbol: this.value }; + } + static fromExtendedJSON(doc) { + return new BSONSymbol(doc.$symbol); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + return `new BSONSymbol(${inspect(this.value, options)})`; + } +} + +const LongWithoutOverridesClass = Long; +class Timestamp extends LongWithoutOverridesClass { + get _bsontype() { + return 'Timestamp'; + } + constructor(low) { + if (low == null) { + super(0, 0, true); + } + else if (typeof low === 'bigint') { + super(low, true); + } + else if (Long.isLong(low)) { + super(low.low, low.high, true); + } + else if (typeof low === 'object' && 't' in low && 'i' in low) { + if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide t as a number'); + } + if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide i as a number'); + } + const t = Number(low.t); + const i = Number(low.i); + if (t < 0 || Number.isNaN(t)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive t'); + } + if (i < 0 || Number.isNaN(i)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive i'); + } + if (t > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide t equal or less than uint32 max'); + } + if (i > 4294967295) { + throw new BSONError('Timestamp constructed from { t, i } must provide i equal or less than uint32 max'); + } + super(i, t, true); + } + else { + throw new BSONError('A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }'); + } + } + toJSON() { + return { + $timestamp: this.toString() + }; + } + static fromInt(value) { + return new Timestamp(Long.fromInt(value, true)); + } + static fromNumber(value) { + return new Timestamp(Long.fromNumber(value, true)); + } + static fromBits(lowBits, highBits) { + return new Timestamp({ i: lowBits, t: highBits }); + } + static fromString(str, optRadix) { + return new Timestamp(Long.fromString(str, true, optRadix)); + } + toExtendedJSON() { + return { $timestamp: { t: this.high >>> 0, i: this.low >>> 0 } }; + } + static fromExtendedJSON(doc) { + const i = Long.isLong(doc.$timestamp.i) + ? doc.$timestamp.i.getLowBitsUnsigned() + : doc.$timestamp.i; + const t = Long.isLong(doc.$timestamp.t) + ? doc.$timestamp.t.getLowBitsUnsigned() + : doc.$timestamp.t; + return new Timestamp({ t, i }); + } + inspect(depth, options, inspect) { + inspect ??= defaultInspect; + const t = inspect(this.high >>> 0, options); + const i = inspect(this.low >>> 0, options); + return `new Timestamp({ t: ${t}, i: ${i} })`; + } +} +Timestamp.MAX_VALUE = Long.MAX_UNSIGNED_VALUE; + +const JS_INT_MAX_LONG = Long.fromNumber(JS_INT_MAX); +const JS_INT_MIN_LONG = Long.fromNumber(JS_INT_MIN); +function internalDeserialize(buffer, options, isArray) { + options = options == null ? {} : options; + const index = options && options.index ? options.index : 0; + const size = NumberUtils.getInt32LE(buffer, index); + if (size < 5) { + throw new BSONError(`bson size must be >= 5, is ${size}`); + } + if (options.allowObjectSmallerThanBufferSize && buffer.length < size) { + throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`); + } + if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) { + throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`); + } + if (size + index > buffer.byteLength) { + throw new BSONError(`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`); + } + if (buffer[index + size - 1] !== 0) { + throw new BSONError("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00"); + } + return deserializeObject(buffer, index, options, isArray); +} +const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/; +function deserializeObject(buffer, index, options, isArray = false) { + const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw']; + const raw = options['raw'] == null ? false : options['raw']; + const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false; + const promoteBuffers = options.promoteBuffers ?? false; + const promoteLongs = options.promoteLongs ?? true; + const promoteValues = options.promoteValues ?? true; + const useBigInt64 = options.useBigInt64 ?? false; + if (useBigInt64 && !promoteValues) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + if (useBigInt64 && !promoteLongs) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + const validation = options.validation == null ? { utf8: true } : options.validation; + let globalUTFValidation = true; + let validationSetting; + let utf8KeysSet; + const utf8ValidatedKeys = validation.utf8; + if (typeof utf8ValidatedKeys === 'boolean') { + validationSetting = utf8ValidatedKeys; + } + else { + globalUTFValidation = false; + const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) { + return utf8ValidatedKeys[key]; + }); + if (utf8ValidationValues.length === 0) { + throw new BSONError('UTF-8 validation setting cannot be empty'); + } + if (typeof utf8ValidationValues[0] !== 'boolean') { + throw new BSONError('Invalid UTF-8 validation option, must specify boolean values'); + } + validationSetting = utf8ValidationValues[0]; + if (!utf8ValidationValues.every(item => item === validationSetting)) { + throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false'); + } + } + if (!globalUTFValidation) { + utf8KeysSet = new Set(); + for (const key of Object.keys(utf8ValidatedKeys)) { + utf8KeysSet.add(key); + } + } + const startIndex = index; + if (buffer.length < 5) + throw new BSONError('corrupt bson message < 5 bytes long'); + const size = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (size < 5 || size > buffer.length) + throw new BSONError('corrupt bson message'); + const object = isArray ? [] : {}; + let arrayIndex = 0; + const done = false; + let isPossibleDBRef = isArray ? false : null; + while (!done) { + const elementType = buffer[index++]; + if (elementType === 0) + break; + let i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.byteLength) + throw new BSONError('Bad BSON Document: illegal CString'); + const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false); + let shouldValidateKey = true; + if (globalUTFValidation || utf8KeysSet?.has(name)) { + shouldValidateKey = validationSetting; + } + else { + shouldValidateKey = !validationSetting; + } + if (isPossibleDBRef !== false && name[0] === '$') { + isPossibleDBRef = allowedDBRefKeys.test(name); + } + let value; + index = i + 1; + if (elementType === BSON_DATA_STRING) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + } + else if (elementType === BSON_DATA_OID) { + const oid = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oid[i] = buffer[index + i]; + value = new ObjectId(oid); + index = index + 12; + } + else if (elementType === BSON_DATA_INT && promoteValues === false) { + value = new Int32(NumberUtils.getInt32LE(buffer, index)); + index += 4; + } + else if (elementType === BSON_DATA_INT) { + value = NumberUtils.getInt32LE(buffer, index); + index += 4; + } + else if (elementType === BSON_DATA_NUMBER) { + value = NumberUtils.getFloat64LE(buffer, index); + index += 8; + if (promoteValues === false) + value = new Double(value); + } + else if (elementType === BSON_DATA_DATE) { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + value = new Date(new Long(lowBits, highBits).toNumber()); + } + else if (elementType === BSON_DATA_BOOLEAN) { + if (buffer[index] !== 0 && buffer[index] !== 1) + throw new BSONError('illegal boolean type value'); + value = buffer[index++] === 1; + } + else if (elementType === BSON_DATA_OBJECT) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + if (objectSize <= 0 || objectSize > buffer.length - index) + throw new BSONError('bad embedded document length in bson'); + if (raw) { + value = buffer.slice(index, index + objectSize); + } + else { + let objectOptions = options; + if (!globalUTFValidation) { + objectOptions = { ...options, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, objectOptions, false); + } + index = index + objectSize; + } + else if (elementType === BSON_DATA_ARRAY) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + let arrayOptions = options; + const stopIndex = index + objectSize; + if (fieldsAsRaw && fieldsAsRaw[name]) { + arrayOptions = { ...options, raw: true }; + } + if (!globalUTFValidation) { + arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, arrayOptions, true); + index = index + objectSize; + if (buffer[index - 1] !== 0) + throw new BSONError('invalid array terminator byte'); + if (index !== stopIndex) + throw new BSONError('corrupted array bson'); + } + else if (elementType === BSON_DATA_UNDEFINED) { + value = undefined; + } + else if (elementType === BSON_DATA_NULL) { + value = null; + } + else if (elementType === BSON_DATA_LONG) { + if (useBigInt64) { + value = NumberUtils.getBigInt64LE(buffer, index); + index += 8; + } + else { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + const long = new Long(lowBits, highBits); + if (promoteLongs && promoteValues === true) { + value = + long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG) + ? long.toNumber() + : long; + } + else { + value = long; + } + } + } + else if (elementType === BSON_DATA_DECIMAL128) { + const bytes = ByteUtils.allocateUnsafe(16); + for (let i = 0; i < 16; i++) + bytes[i] = buffer[index + i]; + index = index + 16; + value = new Decimal128(bytes); + } + else if (elementType === BSON_DATA_BINARY) { + let binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + const totalBinarySize = binarySize; + const subType = buffer[index++]; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found'); + if (binarySize > buffer.byteLength) + throw new BSONError('Binary type size larger than document size'); + if (buffer['slice'] != null) { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.toLocalBufferType(buffer.slice(index, index + binarySize)); + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + else { + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + if (promoteBuffers && promoteValues) { + value = ByteUtils.allocateUnsafe(binarySize); + for (i = 0; i < binarySize; i++) { + value[i] = buffer[index + i]; + } + } + else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + index = index + binarySize; + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === false) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + const optionsArray = new Array(regExpOptions.length); + for (i = 0; i < regExpOptions.length; i++) { + switch (regExpOptions[i]) { + case 'm': + optionsArray[i] = 'm'; + break; + case 's': + optionsArray[i] = 'g'; + break; + case 'i': + optionsArray[i] = 'i'; + break; + } + } + value = new RegExp(source, optionsArray.join('')); + } + else if (elementType === BSON_DATA_REGEXP && bsonRegExp === true) { + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + i = index; + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + if (i >= buffer.length) + throw new BSONError('Bad BSON Document: illegal CString'); + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + value = new BSONRegExp(source, regExpOptions); + } + else if (elementType === BSON_DATA_SYMBOL) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = promoteValues ? symbol : new BSONSymbol(symbol); + index = index + stringSize; + } + else if (elementType === BSON_DATA_TIMESTAMP) { + value = new Timestamp({ + i: NumberUtils.getUint32LE(buffer, index), + t: NumberUtils.getUint32LE(buffer, index + 4) + }); + index += 8; + } + else if (elementType === BSON_DATA_MIN_KEY) { + value = new MinKey(); + } + else if (elementType === BSON_DATA_MAX_KEY) { + value = new MaxKey(); + } + else if (elementType === BSON_DATA_CODE) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = new Code(functionString); + index = index + stringSize; + } + else if (elementType === BSON_DATA_CODE_W_SCOPE) { + const totalSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (totalSize < 4 + 4 + 4 + 1) { + throw new BSONError('code_w_scope total size shorter minimum expected length'); + } + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + const scopeObject = deserializeObject(buffer, _index, options, false); + index = index + objectSize; + if (totalSize < 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too short, truncating scope'); + } + if (totalSize > 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too long, clips outer document'); + } + value = new Code(functionString, scopeObject); + } + else if (elementType === BSON_DATA_DBPOINTER) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0) + throw new BSONError('bad string length in bson'); + const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + const oidBuffer = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) + oidBuffer[i] = buffer[index + i]; + const oid = new ObjectId(oidBuffer); + index = index + 12; + value = new DBRef(namespace, oid); + } + else { + throw new BSONError(`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`); + } + if (name === '__proto__') { + Object.defineProperty(object, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + object[name] = value; + } + } + if (size !== index - startIndex) { + if (isArray) + throw new BSONError('corrupt array bson'); + throw new BSONError('corrupt object bson'); + } + if (!isPossibleDBRef) + return object; + if (isDBRefLike(object)) { + const copy = Object.assign({}, object); + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(object.$ref, object.$id, object.$db, copy); + } + return object; +} + +const regexp = /\x00/; +const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']); +function serializeString(buffer, key, value, index) { + buffer[index++] = BSON_DATA_STRING; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes + 1; + buffer[index - 1] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4); + NumberUtils.setInt32LE(buffer, index, size + 1); + index = index + 4 + size; + buffer[index++] = 0; + return index; +} +function serializeNumber(buffer, key, value, index) { + const isNegativeZero = Object.is(value, -0); + const type = !isNegativeZero && + Number.isSafeInteger(value) && + value <= BSON_INT32_MAX && + value >= BSON_INT32_MIN + ? BSON_DATA_INT + : BSON_DATA_NUMBER; + buffer[index++] = type; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0x00; + if (type === BSON_DATA_INT) { + index += NumberUtils.setInt32LE(buffer, index, value); + } + else { + index += NumberUtils.setFloat64LE(buffer, index, value); + } + return index; +} +function serializeBigInt(buffer, key, value, index) { + buffer[index++] = BSON_DATA_LONG; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index += numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setBigInt64LE(buffer, index, value); + return index; +} +function serializeNull(buffer, key, _, index) { + buffer[index++] = BSON_DATA_NULL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeBoolean(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BOOLEAN; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + buffer[index++] = value ? 1 : 0; + return index; +} +function serializeDate(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DATE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const dateInMilis = Long.fromNumber(value.getTime()); + const lowBits = dateInMilis.getLowBits(); + const highBits = dateInMilis.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.source && value.source.match(regexp) != null) { + throw new BSONError('value ' + value.source + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index); + buffer[index++] = 0x00; + if (value.ignoreCase) + buffer[index++] = 0x69; + if (value.global) + buffer[index++] = 0x73; + if (value.multiline) + buffer[index++] = 0x6d; + buffer[index++] = 0x00; + return index; +} +function serializeBSONRegExp(buffer, key, value, index) { + buffer[index++] = BSON_DATA_REGEXP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.pattern.match(regexp) != null) { + throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes'); + } + index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index); + buffer[index++] = 0x00; + const sortedOptions = value.options.split('').sort().join(''); + index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index); + buffer[index++] = 0x00; + return index; +} +function serializeMinMax(buffer, key, value, index) { + if (value === null) { + buffer[index++] = BSON_DATA_NULL; + } + else if (value._bsontype === 'MinKey') { + buffer[index++] = BSON_DATA_MIN_KEY; + } + else { + buffer[index++] = BSON_DATA_MAX_KEY; + } + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} +function serializeObjectId(buffer, key, value, index) { + buffer[index++] = BSON_DATA_OID; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += value.serializeInto(buffer, index); + return index; +} +function serializeBuffer(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = value.length; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT; + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = value[i]; + } + else { + buffer.set(value, index); + } + index = index + size; + return index; +} +function serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path) { + if (path.has(value)) { + throw new BSONError('Cannot convert circular structure to BSON'); + } + path.add(value); + buffer[index++] = Array.isArray(value) ? BSON_DATA_ARRAY : BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + path.delete(value); + return endIndex; +} +function serializeDecimal128(buffer, key, value, index) { + buffer[index++] = BSON_DATA_DECIMAL128; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + for (let i = 0; i < 16; i++) + buffer[index + i] = value.bytes[i]; + return index + 16; +} +function serializeLong(buffer, key, value, index) { + buffer[index++] = + value._bsontype === 'Long' ? BSON_DATA_LONG : BSON_DATA_TIMESTAMP; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const lowBits = value.getLowBits(); + const highBits = value.getHighBits(); + index += NumberUtils.setInt32LE(buffer, index, lowBits); + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} +function serializeInt32(buffer, key, value, index) { + value = value.valueOf(); + buffer[index++] = BSON_DATA_INT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setInt32LE(buffer, index, value); + return index; +} +function serializeDouble(buffer, key, value, index) { + buffer[index++] = BSON_DATA_NUMBER; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + index += NumberUtils.setFloat64LE(buffer, index, value.value); + return index; +} +function serializeFunction(buffer, key, value, index) { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeCode(buffer, key, value, index, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, path) { + if (value.scope && typeof value.scope === 'object') { + buffer[index++] = BSON_DATA_CODE_W_SCOPE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + const functionString = value.code; + index = index + 4; + const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, codeSize); + buffer[index + 4 + codeSize - 1] = 0; + index = index + codeSize + 4; + const endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path); + index = endIndex - 1; + const totalSize = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize); + buffer[index++] = 0; + } + else { + buffer[index++] = BSON_DATA_CODE; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const functionString = value.code.toString(); + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + } + return index; +} +function serializeBinary(buffer, key, value, index) { + buffer[index++] = BSON_DATA_BINARY; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const data = value.buffer; + let size = value.position; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) + size = size + 4; + index += NumberUtils.setInt32LE(buffer, index, size); + buffer[index++] = value.sub_type; + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + size = size - 4; + index += NumberUtils.setInt32LE(buffer, index, size); + } + if (size <= 16) { + for (let i = 0; i < size; i++) + buffer[index + i] = data[i]; + } + else { + buffer.set(data, index); + } + index = index + value.position; + return index; +} +function serializeSymbol(buffer, key, value, index) { + buffer[index++] = BSON_DATA_SYMBOL; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1; + NumberUtils.setInt32LE(buffer, index, size); + index = index + 4 + size - 1; + buffer[index++] = 0; + return index; +} +function serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path) { + buffer[index++] = BSON_DATA_OBJECT; + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + let startIndex = index; + let output = { + $ref: value.collection || value.namespace, + $id: value.oid + }; + if (value.db != null) { + output.$db = value.db; + } + output = Object.assign(output, value.fields); + const endIndex = serializeInto(buffer, output, false, index, depth + 1, serializeFunctions, true, path); + const size = endIndex - startIndex; + startIndex += NumberUtils.setInt32LE(buffer, index, size); + return endIndex; +} +function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) { + if (path == null) { + if (object == null) { + buffer[0] = 0x05; + buffer[1] = 0x00; + buffer[2] = 0x00; + buffer[3] = 0x00; + buffer[4] = 0x00; + return 5; + } + if (Array.isArray(object)) { + throw new BSONError('serialize does not support an array as the root input'); + } + if (typeof object !== 'object') { + throw new BSONError('serialize does not support non-object as the root input'); + } + else if ('_bsontype' in object && typeof object._bsontype === 'string') { + throw new BSONError(`BSON types cannot be serialized as a document`); + } + else if (isDate(object) || + isRegExp(object) || + isUint8Array(object) || + isAnyArrayBuffer(object)) { + throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`); + } + path = new Set(); + } + path.add(object); + let index = startingIndex + 4; + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + const key = `${i}`; + let value = object[i]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + if (typeof value === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (typeof value === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (typeof value === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (typeof value === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (typeof value === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else if (object instanceof Map || isMap(object)) { + const iterator = object.entries(); + let done = false; + while (!done) { + const entry = iterator.next(); + done = !!entry.done; + if (done) + continue; + const key = entry.value[0]; + let value = entry.value[1]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === null || (value === undefined && ignoreUndefined === false)) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + else { + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + if (object != null && typeof object !== 'object') { + throw new BSONError('toBSON function did not return an object'); + } + } + for (const key of Object.keys(object)) { + let value = object[key]; + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + const type = typeof value; + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } + else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } + else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } + else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } + else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } + else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } + else if (value === undefined) { + if (ignoreUndefined === false) + index = serializeNull(buffer, key, value, index); + } + else if (value === null) { + index = serializeNull(buffer, key, value, index); + } + else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } + else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype == null) { + index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } + else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } + else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } + else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } + else if (value._bsontype === 'Code') { + index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, path); + } + else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } + else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } + else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } + else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } + else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } + else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } + else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } + else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + path.delete(object); + buffer[index++] = 0x00; + const size = index - startingIndex; + startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size); + return index; +} + +function isBSONType(value) { + return (value != null && + typeof value === 'object' && + '_bsontype' in value && + typeof value._bsontype === 'string'); +} +const keysToCodecs = { + $oid: ObjectId, + $binary: Binary, + $uuid: Binary, + $symbol: BSONSymbol, + $numberInt: Int32, + $numberDecimal: Decimal128, + $numberDouble: Double, + $numberLong: Long, + $minKey: MinKey, + $maxKey: MaxKey, + $regex: BSONRegExp, + $regularExpression: BSONRegExp, + $timestamp: Timestamp +}; +function deserializeValue(value, options = {}) { + if (typeof value === 'number') { + const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN; + const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN; + if (options.relaxed || options.legacy) { + return value; + } + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (in32BitRange) { + return new Int32(value); + } + if (in64BitRange) { + if (options.useBigInt64) { + return BigInt(value); + } + return Long.fromNumber(value); + } + } + return new Double(value); + } + if (value == null || typeof value !== 'object') + return value; + if (value.$undefined) + return null; + const keys = Object.keys(value).filter(k => k.startsWith('$') && value[k] != null); + for (let i = 0; i < keys.length; i++) { + const c = keysToCodecs[keys[i]]; + if (c) + return c.fromExtendedJSON(value, options); + } + if (value.$date != null) { + const d = value.$date; + const date = new Date(); + if (options.legacy) { + if (typeof d === 'number') + date.setTime(d); + else if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + else { + if (typeof d === 'string') + date.setTime(Date.parse(d)); + else if (Long.isLong(d)) + date.setTime(d.toNumber()); + else if (typeof d === 'number' && options.relaxed) + date.setTime(d); + else if (typeof d === 'bigint') + date.setTime(Number(d)); + else + throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + return date; + } + if (value.$code != null) { + const copy = Object.assign({}, value); + if (value.$scope) { + copy.$scope = deserializeValue(value.$scope); + } + return Code.fromExtendedJSON(value); + } + if (isDBRefLike(value) || value.$dbPointer) { + const v = value.$ref ? value : value.$dbPointer; + if (v instanceof DBRef) + return v; + const dollarKeys = Object.keys(v).filter(k => k.startsWith('$')); + let valid = true; + dollarKeys.forEach(k => { + if (['$ref', '$id', '$db'].indexOf(k) === -1) + valid = false; + }); + if (valid) + return DBRef.fromExtendedJSON(v); + } + return value; +} +function serializeArray(array, options) { + return array.map((v, index) => { + options.seenObjects.push({ propertyName: `index ${index}`, obj: null }); + try { + return serializeValue(v, options); + } + finally { + options.seenObjects.pop(); + } + }); +} +function getISOString(date) { + const isoStr = date.toISOString(); + return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z'; +} +function serializeValue(value, options) { + if (value instanceof Map || isMap(value)) { + const obj = Object.create(null); + for (const [k, v] of value) { + if (typeof k !== 'string') { + throw new BSONError('Can only serialize maps with string keys'); + } + obj[k] = v; + } + return serializeValue(obj, options); + } + if ((typeof value === 'object' || typeof value === 'function') && value !== null) { + const index = options.seenObjects.findIndex(entry => entry.obj === value); + if (index !== -1) { + const props = options.seenObjects.map(entry => entry.propertyName); + const leadingPart = props + .slice(0, index) + .map(prop => `${prop} -> `) + .join(''); + const alreadySeen = props[index]; + const circularPart = ' -> ' + + props + .slice(index + 1, props.length - 1) + .map(prop => `${prop} -> `) + .join(''); + const current = props[props.length - 1]; + const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2); + const dashes = '-'.repeat(circularPart.length + (alreadySeen.length + current.length) / 2 - 1); + throw new BSONError('Converting circular structure to EJSON:\n' + + ` ${leadingPart}${alreadySeen}${circularPart}${current}\n` + + ` ${leadingSpace}\\${dashes}/`); + } + options.seenObjects[options.seenObjects.length - 1].obj = value; + } + if (Array.isArray(value)) + return serializeArray(value, options); + if (value === undefined) + return null; + if (value instanceof Date || isDate(value)) { + const dateNum = value.getTime(), inRange = dateNum > -1 && dateNum < 253402318800000; + if (options.legacy) { + return options.relaxed && inRange + ? { $date: value.getTime() } + : { $date: getISOString(value) }; + } + return options.relaxed && inRange + ? { $date: getISOString(value) } + : { $date: { $numberLong: value.getTime().toString() } }; + } + if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) { + if (Number.isInteger(value) && !Object.is(value, -0)) { + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return { $numberInt: value.toString() }; + } + if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) { + return { $numberLong: value.toString() }; + } + } + return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() }; + } + if (typeof value === 'bigint') { + if (!options.relaxed) { + return { $numberLong: BigInt.asIntN(64, value).toString() }; + } + return Number(BigInt.asIntN(64, value)); + } + if (value instanceof RegExp || isRegExp(value)) { + let flags = value.flags; + if (flags === undefined) { + const match = value.toString().match(/[gimuy]*$/); + if (match) { + flags = match[0]; + } + } + const rx = new BSONRegExp(value.source, flags); + return rx.toExtendedJSON(options); + } + if (value != null && typeof value === 'object') + return serializeDocument(value, options); + return value; +} +const BSON_TYPE_MAPPINGS = { + Binary: (o) => new Binary(o.value(), o.sub_type), + Code: (o) => new Code(o.code, o.scope), + DBRef: (o) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), + Decimal128: (o) => new Decimal128(o.bytes), + Double: (o) => new Double(o.value), + Int32: (o) => new Int32(o.value), + Long: (o) => Long.fromBits(o.low != null ? o.low : o.low_, o.low != null ? o.high : o.high_, o.low != null ? o.unsigned : o.unsigned_), + MaxKey: () => new MaxKey(), + MinKey: () => new MinKey(), + ObjectId: (o) => new ObjectId(o), + BSONRegExp: (o) => new BSONRegExp(o.pattern, o.options), + BSONSymbol: (o) => new BSONSymbol(o.value), + Timestamp: (o) => Timestamp.fromBits(o.low, o.high) +}; +function serializeDocument(doc, options) { + if (doc == null || typeof doc !== 'object') + throw new BSONError('not an object instance'); + const bsontype = doc._bsontype; + if (typeof bsontype === 'undefined') { + const _doc = {}; + for (const name of Object.keys(doc)) { + options.seenObjects.push({ propertyName: name, obj: null }); + try { + const value = serializeValue(doc[name], options); + if (name === '__proto__') { + Object.defineProperty(_doc, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } + else { + _doc[name] = value; + } + } + finally { + options.seenObjects.pop(); + } + } + return _doc; + } + else if (doc != null && + typeof doc === 'object' && + typeof doc._bsontype === 'string' && + doc[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION) { + throw new BSONVersionError(); + } + else if (isBSONType(doc)) { + let outDoc = doc; + if (typeof outDoc.toExtendedJSON !== 'function') { + const mapper = BSON_TYPE_MAPPINGS[doc._bsontype]; + if (!mapper) { + throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype); + } + outDoc = mapper(outDoc); + } + if (bsontype === 'Code' && outDoc.scope) { + outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options)); + } + else if (bsontype === 'DBRef' && outDoc.oid) { + outDoc = new DBRef(serializeValue(outDoc.collection, options), serializeValue(outDoc.oid, options), serializeValue(outDoc.db, options), serializeValue(outDoc.fields, options)); + } + return outDoc.toExtendedJSON(options); + } + else { + throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype); + } +} +function parse(text, options) { + const ejsonOptions = { + useBigInt64: options?.useBigInt64 ?? false, + relaxed: options?.relaxed ?? true, + legacy: options?.legacy ?? false + }; + return JSON.parse(text, (key, value) => { + if (key.indexOf('\x00') !== -1) { + throw new BSONError(`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`); + } + return deserializeValue(value, ejsonOptions); + }); +} +function stringify(value, replacer, space, options) { + if (space != null && typeof space === 'object') { + options = space; + space = 0; + } + if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) { + options = replacer; + replacer = undefined; + space = 0; + } + const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, { + seenObjects: [{ propertyName: '(root)', obj: null }] + }); + const doc = serializeValue(value, serializeOptions); + return JSON.stringify(doc, replacer, space); +} +function EJSONserialize(value, options) { + options = options || {}; + return JSON.parse(stringify(value, options)); +} +function EJSONdeserialize(ejson, options) { + options = options || {}; + return parse(JSON.stringify(ejson), options); +} +const EJSON = Object.create(null); +EJSON.parse = parse; +EJSON.stringify = stringify; +EJSON.serialize = EJSONserialize; +EJSON.deserialize = EJSONdeserialize; +Object.freeze(EJSON); + +function getSize(source, offset) { + try { + return NumberUtils.getNonnegativeInt32LE(source, offset); + } + catch (cause) { + throw new BSONOffsetError('BSON size cannot be negative', offset, { cause }); + } +} +function findNull(bytes, offset) { + let nullTerminatorOffset = offset; + for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++) + ; + if (nullTerminatorOffset === bytes.length - 1) { + throw new BSONOffsetError('Null terminator not found', offset); + } + return nullTerminatorOffset; +} +function parseToElements(bytes, startOffset = 0) { + startOffset ??= 0; + if (bytes.length < 5) { + throw new BSONOffsetError(`Input must be at least 5 bytes, got ${bytes.length} bytes`, startOffset); + } + const documentSize = getSize(bytes, startOffset); + if (documentSize > bytes.length - startOffset) { + throw new BSONOffsetError(`Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, startOffset); + } + if (bytes[startOffset + documentSize - 1] !== 0x00) { + throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize); + } + const elements = []; + let offset = startOffset + 4; + while (offset <= documentSize + startOffset) { + const type = bytes[offset]; + offset += 1; + if (type === 0) { + if (offset - startOffset !== documentSize) { + throw new BSONOffsetError(`Invalid 0x00 type byte`, offset); + } + break; + } + const nameOffset = offset; + const nameLength = findNull(bytes, offset) - nameOffset; + offset += nameLength + 1; + let length; + if (type === 1 || + type === 18 || + type === 9 || + type === 17) { + length = 8; + } + else if (type === 16) { + length = 4; + } + else if (type === 7) { + length = 12; + } + else if (type === 19) { + length = 16; + } + else if (type === 8) { + length = 1; + } + else if (type === 10 || + type === 6 || + type === 127 || + type === 255) { + length = 0; + } + else if (type === 11) { + length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset; + } + else if (type === 3 || + type === 4 || + type === 15) { + length = getSize(bytes, offset); + } + else if (type === 2 || + type === 5 || + type === 12 || + type === 13 || + type === 14) { + length = getSize(bytes, offset) + 4; + if (type === 5) { + length += 1; + } + if (type === 12) { + length += 12; + } + } + else { + throw new BSONOffsetError(`Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, offset); + } + if (length > documentSize) { + throw new BSONOffsetError('value reports length larger than document', offset); + } + elements.push([type, nameOffset, nameLength, offset, length]); + offset += length; + } + return elements; +} + +const onDemand = Object.create(null); +onDemand.parseToElements = parseToElements; +onDemand.ByteUtils = ByteUtils; +onDemand.NumberUtils = NumberUtils; +Object.freeze(onDemand); + +const MAXSIZE = 1024 * 1024 * 17; +let buffer = ByteUtils.allocate(MAXSIZE); +function setInternalBufferSize(size) { + if (buffer.length < size) { + buffer = ByteUtils.allocate(size); + } +} +function serialize(object, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const minInternalBufferSize = typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE; + if (buffer.length < minInternalBufferSize) { + buffer = ByteUtils.allocate(minInternalBufferSize); + } + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex); + finishedBuffer.set(buffer.subarray(0, serializationIndex), 0); + return finishedBuffer; +} +function serializeWithBufferAndIndex(object, finalBuffer, options = {}) { + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const startIndex = typeof options.index === 'number' ? options.index : 0; + const serializationIndex = serializeInto(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, null); + finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex); + return startIndex + serializationIndex - 1; +} +function deserialize(buffer, options = {}) { + return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options); +} +function calculateObjectSize(object, options = {}) { + options = options || {}; + const serializeFunctions = typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined); +} +function deserializeStream(data, startIndex, numberOfDocuments, documents, docStartIndex, options) { + const internalOptions = Object.assign({ allowObjectSmallerThanBufferSize: true, index: 0 }, options); + const bufferData = ByteUtils.toLocalBufferType(data); + let index = startIndex; + for (let i = 0; i < numberOfDocuments; i++) { + const size = NumberUtils.getInt32LE(bufferData, index); + internalOptions.index = index; + documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions); + index = index + size; + } + return index; +} + +var bson = /*#__PURE__*/Object.freeze({ + __proto__: null, + BSONError: BSONError, + BSONOffsetError: BSONOffsetError, + BSONRegExp: BSONRegExp, + BSONRuntimeError: BSONRuntimeError, + BSONSymbol: BSONSymbol, + BSONType: BSONType, + BSONValue: BSONValue, + BSONVersionError: BSONVersionError, + Binary: Binary, + Code: Code, + DBRef: DBRef, + Decimal128: Decimal128, + Double: Double, + EJSON: EJSON, + Int32: Int32, + Long: Long, + MaxKey: MaxKey, + MinKey: MinKey, + ObjectId: ObjectId, + Timestamp: Timestamp, + UUID: UUID, + calculateObjectSize: calculateObjectSize, + deserialize: deserialize, + deserializeStream: deserializeStream, + onDemand: onDemand, + serialize: serialize, + serializeWithBufferAndIndex: serializeWithBufferAndIndex, + setInternalBufferSize: setInternalBufferSize +}); + +exports.BSON = bson; +exports.BSONError = BSONError; +exports.BSONOffsetError = BSONOffsetError; +exports.BSONRegExp = BSONRegExp; +exports.BSONRuntimeError = BSONRuntimeError; +exports.BSONSymbol = BSONSymbol; +exports.BSONType = BSONType; +exports.BSONValue = BSONValue; +exports.BSONVersionError = BSONVersionError; +exports.Binary = Binary; +exports.Code = Code; +exports.DBRef = DBRef; +exports.Decimal128 = Decimal128; +exports.Double = Double; +exports.EJSON = EJSON; +exports.Int32 = Int32; +exports.Long = Long; +exports.MaxKey = MaxKey; +exports.MinKey = MinKey; +exports.ObjectId = ObjectId; +exports.Timestamp = Timestamp; +exports.UUID = UUID; +exports.calculateObjectSize = calculateObjectSize; +exports.deserialize = deserialize; +exports.deserializeStream = deserializeStream; +exports.onDemand = onDemand; +exports.serialize = serialize; +exports.serializeWithBufferAndIndex = serializeWithBufferAndIndex; +exports.setInternalBufferSize = setInternalBufferSize; +//# sourceMappingURL=bson.rn.cjs.map diff --git a/week-3/04-course-app-hard/node_modules/bson/lib/bson.rn.cjs.map b/week-3/04-course-app-hard/node_modules/bson/lib/bson.rn.cjs.map new file mode 100644 index 000000000..27dfe757c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/lib/bson.rn.cjs.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/bson/package.json b/week-3/04-course-app-hard/node_modules/bson/package.json new file mode 100644 index 000000000..80ce4ee2a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/package.json @@ -0,0 +1,119 @@ +{ + "name": "bson", + "description": "A bson parser for node.js and the browser", + "keywords": [ + "mongodb", + "bson", + "parser" + ], + "files": [ + "lib", + "src", + "bson.d.ts", + "etc/prepare.js", + "vendor" + ], + "types": "bson.d.ts", + "version": "6.8.0", + "author": { + "name": "The MongoDB NodeJS Team", + "email": "dbx-node@mongodb.com" + }, + "license": "Apache-2.0", + "contributors": [], + "repository": "mongodb/js-bson", + "bugs": { + "url": "https://jira.mongodb.org/projects/NODE/issues/" + }, + "devDependencies": { + "@istanbuljs/nyc-config-typescript": "^1.0.2", + "@microsoft/api-extractor": "^7.43.1", + "@rollup/plugin-node-resolve": "^15.2.3", + "@rollup/plugin-typescript": "^11.1.6", + "@types/chai": "^4.3.14", + "@types/mocha": "^10.0.6", + "@types/node": "^20.12.7", + "@types/sinon": "^17.0.3", + "@types/sinon-chai": "^3.2.12", + "@typescript-eslint/eslint-plugin": "^7.7.0", + "@typescript-eslint/parser": "^7.7.0", + "benchmark": "^2.1.4", + "chai": "^4.4.1", + "chalk": "^5.3.0", + "dbx-js-tools": "github:mongodb-js/dbx-js-tools", + "eslint": "^8.57.0", + "eslint-config-prettier": "^9.1.0", + "eslint-plugin-no-bigint-usage": "file:etc/eslint/no-bigint-usage", + "eslint-plugin-prettier": "^5.1.3", + "eslint-plugin-tsdoc": "^0.2.17", + "magic-string": "^0.30.10", + "mocha": "^10.4.0", + "node-fetch": "^3.3.2", + "nyc": "^15.1.0", + "prettier": "^3.2.5", + "rollup": "^4.14.3", + "sinon": "^17.0.1", + "sinon-chai": "^3.7.0", + "source-map-support": "^0.5.21", + "standard-version": "^9.5.0", + "tar": "^7.0.1", + "ts-node": "^10.9.2", + "tsd": "^0.31.0", + "typescript": "5.3", + "typescript-cached-transpile": "0.0.6", + "uuid": "^9.0.1" + }, + "tsd": { + "directory": "test/types", + "compilerOptions": { + "strict": true, + "target": "esnext", + "module": "commonjs", + "moduleResolution": "node" + } + }, + "config": { + "native": false + }, + "main": "./lib/bson.cjs", + "module": "./lib/bson.mjs", + "exports": { + "import": { + "types": "./bson.d.ts", + "default": "./lib/bson.mjs" + }, + "require": { + "types": "./bson.d.ts", + "default": "./lib/bson.cjs" + }, + "react-native": "./lib/bson.rn.cjs", + "browser": "./lib/bson.mjs" + }, + "compass:exports": { + "import": "./lib/bson.cjs", + "require": "./lib/bson.cjs" + }, + "engines": { + "node": ">=16.20.1" + }, + "scripts": { + "pretest": "npm run build", + "test": "npm run check:node && npm run check:web && npm run check:web-no-bigint", + "check:node": "WEB=false mocha test/node", + "check:tsd": "npm run build:dts && tsd", + "check:web": "WEB=true mocha test/node", + "check:web-no-bigint": "WEB=true NO_BIGINT=true mocha test/node", + "check:granular-bench": "npm run build:bench && node ./test/bench/etc/run_granular_benchmarks.js", + "check:spec-bench": "npm run build:bench && node ./test/bench/lib/spec/bsonBench.js", + "build:bench": "cd test/bench && npx tsc", + "build:ts": "node ./node_modules/typescript/bin/tsc", + "build:dts": "npm run build:ts && api-extractor run --typescript-compiler-folder node_modules/typescript --local && node etc/clean_definition_files.cjs", + "build:bundle": "rollup -c rollup.config.mjs", + "build": "npm run build:dts && npm run build:bundle", + "check:lint": "eslint -v && eslint --ext '.js,.ts' --max-warnings=0 src test && npm run build:dts && npm run check:tsd", + "format": "eslint --ext '.js,.ts' src test --fix", + "check:coverage": "nyc --check-coverage npm run check:node", + "prepare": "node etc/prepare.js", + "release": "standard-version -i HISTORY.md" + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/binary.ts b/week-3/04-course-app-hard/node_modules/bson/src/binary.ts new file mode 100644 index 000000000..6a892b00a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/binary.ts @@ -0,0 +1,472 @@ +import { type InspectFn, defaultInspect, isAnyArrayBuffer, isUint8Array } from './parser/utils'; +import type { EJSONOptions } from './extended_json'; +import { BSONError } from './error'; +import { BSON_BINARY_SUBTYPE_UUID_NEW } from './constants'; +import { ByteUtils } from './utils/byte_utils'; +import { BSONValue } from './bson_value'; + +/** @public */ +export type BinarySequence = Uint8Array | number[]; + +/** @public */ +export interface BinaryExtendedLegacy { + $type: string; + $binary: string; +} + +/** @public */ +export interface BinaryExtended { + $binary: { + subType: string; + base64: string; + }; +} + +/** + * A class representation of the BSON Binary type. + * @public + * @category BSONType + */ +export class Binary extends BSONValue { + get _bsontype(): 'Binary' { + return 'Binary'; + } + + /** + * Binary default subtype + * @internal + */ + private static readonly BSON_BINARY_SUBTYPE_DEFAULT = 0; + + /** Initial buffer default size */ + static readonly BUFFER_SIZE = 256; + /** Default BSON type */ + static readonly SUBTYPE_DEFAULT = 0; + /** Function BSON type */ + static readonly SUBTYPE_FUNCTION = 1; + /** Byte Array BSON type */ + static readonly SUBTYPE_BYTE_ARRAY = 2; + /** Deprecated UUID BSON type @deprecated Please use SUBTYPE_UUID */ + static readonly SUBTYPE_UUID_OLD = 3; + /** UUID BSON type */ + static readonly SUBTYPE_UUID = 4; + /** MD5 BSON type */ + static readonly SUBTYPE_MD5 = 5; + /** Encrypted BSON type */ + static readonly SUBTYPE_ENCRYPTED = 6; + /** Column BSON type */ + static readonly SUBTYPE_COLUMN = 7; + /** Sensitive BSON type */ + static readonly SUBTYPE_SENSITIVE = 8; + /** User BSON type */ + static readonly SUBTYPE_USER_DEFINED = 128; + + buffer!: Uint8Array; + sub_type!: number; + position!: number; + + /** + * Create a new Binary instance. + * @param buffer - a buffer object containing the binary data. + * @param subType - the option binary type. + */ + constructor(buffer?: BinarySequence, subType?: number) { + super(); + if ( + !(buffer == null) && + typeof buffer === 'string' && + !ArrayBuffer.isView(buffer) && + !isAnyArrayBuffer(buffer) && + !Array.isArray(buffer) + ) { + throw new BSONError('Binary can only be constructed from Uint8Array or number[]'); + } + + this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT; + + if (buffer == null) { + // create an empty binary buffer + this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE); + this.position = 0; + } else { + this.buffer = Array.isArray(buffer) + ? ByteUtils.fromNumberArray(buffer) + : ByteUtils.toLocalBufferType(buffer); + this.position = this.buffer.byteLength; + } + } + + /** + * Updates this binary with byte_value. + * + * @param byteValue - a single byte we wish to write. + */ + put(byteValue: string | number | Uint8Array | number[]): void { + // If it's a string and a has more than one character throw an error + if (typeof byteValue === 'string' && byteValue.length !== 1) { + throw new BSONError('only accepts single character String'); + } else if (typeof byteValue !== 'number' && byteValue.length !== 1) + throw new BSONError('only accepts single character Uint8Array or Array'); + + // Decode the byte value once + let decodedByte: number; + if (typeof byteValue === 'string') { + decodedByte = byteValue.charCodeAt(0); + } else if (typeof byteValue === 'number') { + decodedByte = byteValue; + } else { + decodedByte = byteValue[0]; + } + + if (decodedByte < 0 || decodedByte > 255) { + throw new BSONError('only accepts number in a valid unsigned byte range 0-255'); + } + + if (this.buffer.byteLength > this.position) { + this.buffer[this.position++] = decodedByte; + } else { + const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length); + newSpace.set(this.buffer, 0); + this.buffer = newSpace; + this.buffer[this.position++] = decodedByte; + } + } + + /** + * Writes a buffer to the binary. + * + * @param sequence - a string or buffer to be written to the Binary BSON object. + * @param offset - specify the binary of where to write the content. + */ + write(sequence: BinarySequence, offset: number): void { + offset = typeof offset === 'number' ? offset : this.position; + + // If the buffer is to small let's extend the buffer + if (this.buffer.byteLength < offset + sequence.length) { + const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length); + newSpace.set(this.buffer, 0); + + // Assign the new buffer + this.buffer = newSpace; + } + + if (ArrayBuffer.isView(sequence)) { + this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset); + this.position = + offset + sequence.byteLength > this.position ? offset + sequence.length : this.position; + } else if (typeof sequence === 'string') { + throw new BSONError('input cannot be string'); + } + } + + /** + * Reads **length** bytes starting at **position**. + * + * @param position - read from the given position in the Binary. + * @param length - the number of bytes to read. + */ + read(position: number, length: number): BinarySequence { + length = length && length > 0 ? length : this.position; + + // Let's return the data based on the type we have + return this.buffer.slice(position, position + length); + } + + /** returns a view of the binary value as a Uint8Array */ + value(): Uint8Array { + // Optimize to serialize for the situation where the data == size of buffer + return this.buffer.length === this.position + ? this.buffer + : this.buffer.subarray(0, this.position); + } + + /** the length of the binary sequence */ + length(): number { + return this.position; + } + + toJSON(): string { + return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + } + + toString(encoding?: 'hex' | 'base64' | 'utf8' | 'utf-8'): string { + if (encoding === 'hex') return ByteUtils.toHex(this.buffer.subarray(0, this.position)); + if (encoding === 'base64') return ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + if (encoding === 'utf8' || encoding === 'utf-8') + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + return ByteUtils.toUTF8(this.buffer, 0, this.position, false); + } + + /** @internal */ + toExtendedJSON(options?: EJSONOptions): BinaryExtendedLegacy | BinaryExtended { + options = options || {}; + const base64String = ByteUtils.toBase64(this.buffer); + + const subType = Number(this.sub_type).toString(16); + if (options.legacy) { + return { + $binary: base64String, + $type: subType.length === 1 ? '0' + subType : subType + }; + } + return { + $binary: { + base64: base64String, + subType: subType.length === 1 ? '0' + subType : subType + } + }; + } + + toUUID(): UUID { + if (this.sub_type === Binary.SUBTYPE_UUID) { + return new UUID(this.buffer.slice(0, this.position)); + } + + throw new BSONError( + `Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.` + ); + } + + /** Creates an Binary instance from a hex digit string */ + static createFromHexString(hex: string, subType?: number): Binary { + return new Binary(ByteUtils.fromHex(hex), subType); + } + + /** Creates an Binary instance from a base64 string */ + static createFromBase64(base64: string, subType?: number): Binary { + return new Binary(ByteUtils.fromBase64(base64), subType); + } + + /** @internal */ + static fromExtendedJSON( + doc: BinaryExtendedLegacy | BinaryExtended | UUIDExtended, + options?: EJSONOptions + ): Binary { + options = options || {}; + let data: Uint8Array | undefined; + let type; + if ('$binary' in doc) { + if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) { + type = doc.$type ? parseInt(doc.$type, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary); + } else { + if (typeof doc.$binary !== 'string') { + type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0; + data = ByteUtils.fromBase64(doc.$binary.base64); + } + } + } else if ('$uuid' in doc) { + type = 4; + data = UUID.bytesFromString(doc.$uuid); + } + if (!data) { + throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`); + } + return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position)); + const base64Arg = inspect(base64, options); + const subTypeArg = inspect(this.sub_type, options); + return `Binary.createFromBase64(${base64Arg}, ${subTypeArg})`; + } +} + +/** @public */ +export type UUIDExtended = { + $uuid: string; +}; + +const UUID_BYTE_LENGTH = 16; +const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i; +const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i; + +/** + * A class representation of the BSON UUID type. + * @public + */ +export class UUID extends Binary { + /** + * Create a UUID type + * + * When the argument to the constructor is omitted a random v4 UUID will be generated. + * + * @param input - Can be a 32 or 36 character hex string (dashes excluded/included) or a 16 byte binary Buffer. + */ + constructor(input?: string | Uint8Array | UUID) { + let bytes: Uint8Array; + if (input == null) { + bytes = UUID.generate(); + } else if (input instanceof UUID) { + bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer)); + } else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) { + bytes = ByteUtils.toLocalBufferType(input); + } else if (typeof input === 'string') { + bytes = UUID.bytesFromString(input); + } else { + throw new BSONError( + 'Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).' + ); + } + super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW); + } + + /** + * The UUID bytes + * @readonly + */ + get id(): Uint8Array { + return this.buffer; + } + + set id(value: Uint8Array) { + this.buffer = value; + } + + /** + * Returns the UUID id as a 32 or 36 character hex string representation, excluding/including dashes (defaults to 36 character dash separated) + * @param includeDashes - should the string exclude dash-separators. + */ + toHexString(includeDashes = true): string { + if (includeDashes) { + return [ + ByteUtils.toHex(this.buffer.subarray(0, 4)), + ByteUtils.toHex(this.buffer.subarray(4, 6)), + ByteUtils.toHex(this.buffer.subarray(6, 8)), + ByteUtils.toHex(this.buffer.subarray(8, 10)), + ByteUtils.toHex(this.buffer.subarray(10, 16)) + ].join('-'); + } + return ByteUtils.toHex(this.buffer); + } + + /** + * Converts the id into a 36 character (dashes included) hex string, unless a encoding is specified. + */ + toString(encoding?: 'hex' | 'base64'): string { + if (encoding === 'hex') return ByteUtils.toHex(this.id); + if (encoding === 'base64') return ByteUtils.toBase64(this.id); + return this.toHexString(); + } + + /** + * Converts the id into its JSON string representation. + * A 36 character (dashes included) hex string in the format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + */ + toJSON(): string { + return this.toHexString(); + } + + /** + * Compares the equality of this UUID with `otherID`. + * + * @param otherId - UUID instance to compare against. + */ + equals(otherId: string | Uint8Array | UUID): boolean { + if (!otherId) { + return false; + } + + if (otherId instanceof UUID) { + return ByteUtils.equals(otherId.id, this.id); + } + + try { + return ByteUtils.equals(new UUID(otherId).id, this.id); + } catch { + return false; + } + } + + /** + * Creates a Binary instance from the current UUID. + */ + toBinary(): Binary { + return new Binary(this.id, Binary.SUBTYPE_UUID); + } + + /** + * Generates a populated buffer containing a v4 uuid + */ + static generate(): Uint8Array { + const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + // Kindly borrowed from https://github.com/uuidjs/uuid/blob/master/src/v4.js + bytes[6] = (bytes[6] & 0x0f) | 0x40; + bytes[8] = (bytes[8] & 0x3f) | 0x80; + + return bytes; + } + + /** + * Checks if a value is a valid bson UUID + * @param input - UUID, string or Buffer to validate. + */ + static isValid(input: string | Uint8Array | UUID | Binary): boolean { + if (!input) { + return false; + } + + if (typeof input === 'string') { + return UUID.isValidUUIDString(input); + } + + if (isUint8Array(input)) { + return input.byteLength === UUID_BYTE_LENGTH; + } + + return ( + input._bsontype === 'Binary' && + input.sub_type === this.SUBTYPE_UUID && + input.buffer.byteLength === 16 + ); + } + + /** + * Creates an UUID from a hex string representation of an UUID. + * @param hexString - 32 or 36 character hex string (dashes excluded/included). + */ + static override createFromHexString(hexString: string): UUID { + const buffer = UUID.bytesFromString(hexString); + return new UUID(buffer); + } + + /** Creates an UUID from a base64 string representation of an UUID. */ + static override createFromBase64(base64: string): UUID { + return new UUID(ByteUtils.fromBase64(base64)); + } + + /** @internal */ + static bytesFromString(representation: string) { + if (!UUID.isValidUUIDString(representation)) { + throw new BSONError( + 'UUID string representation must be 32 hex digits or canonical hyphenated representation' + ); + } + return ByteUtils.fromHex(representation.replace(/-/g, '')); + } + + /** + * @internal + * + * Validates a string to be a hex digit sequence with or without dashes. + * The canonical hyphenated representation of a uuid is hex in 8-4-4-4-12 groups. + */ + static isValidUUIDString(representation: string) { + return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation); + } + + /** + * Converts to a string representation of this Id. + * + * @returns return the 36 character hex string representation. + * + */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + return `new UUID(${inspect(this.toHexString(), options)})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/bson.ts b/week-3/04-course-app-hard/node_modules/bson/src/bson.ts new file mode 100644 index 000000000..0dc8346e8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/bson.ts @@ -0,0 +1,248 @@ +import { Binary, UUID } from './binary'; +import { Code } from './code'; +import { DBRef } from './db_ref'; +import { Decimal128 } from './decimal128'; +import { Double } from './double'; +import { Int32 } from './int_32'; +import { Long } from './long'; +import { MaxKey } from './max_key'; +import { MinKey } from './min_key'; +import { ObjectId } from './objectid'; +import { internalCalculateObjectSize } from './parser/calculate_size'; +// Parts of the parser +import { internalDeserialize, type DeserializeOptions } from './parser/deserializer'; +import { serializeInto, type SerializeOptions } from './parser/serializer'; +import { BSONRegExp } from './regexp'; +import { BSONSymbol } from './symbol'; +import { Timestamp } from './timestamp'; +import { ByteUtils } from './utils/byte_utils'; +import { NumberUtils } from './utils/number_utils'; +export type { UUIDExtended, BinaryExtended, BinaryExtendedLegacy, BinarySequence } from './binary'; +export type { CodeExtended } from './code'; +export type { DBRefLike } from './db_ref'; +export type { Decimal128Extended } from './decimal128'; +export type { DoubleExtended } from './double'; +export type { EJSONOptions } from './extended_json'; +export type { Int32Extended } from './int_32'; +export type { LongExtended } from './long'; +export type { MaxKeyExtended } from './max_key'; +export type { MinKeyExtended } from './min_key'; +export type { ObjectIdExtended, ObjectIdLike } from './objectid'; +export type { BSONRegExpExtended, BSONRegExpExtendedLegacy } from './regexp'; +export type { BSONSymbolExtended } from './symbol'; +export type { LongWithoutOverrides, TimestampExtended, TimestampOverrides } from './timestamp'; +export type { LongWithoutOverridesClass } from './timestamp'; +export type { SerializeOptions, DeserializeOptions }; + +export { + Code, + BSONSymbol, + DBRef, + Binary, + ObjectId, + UUID, + Long, + Timestamp, + Double, + Int32, + MinKey, + MaxKey, + BSONRegExp, + Decimal128 +}; +export { BSONValue } from './bson_value'; +export { BSONError, BSONVersionError, BSONRuntimeError, BSONOffsetError } from './error'; +export { BSONType } from './constants'; +export { EJSON } from './extended_json'; +export { onDemand, type OnDemand } from './parser/on_demand/index'; + +/** @public */ +export interface Document { + // eslint-disable-next-line @typescript-eslint/no-explicit-any + [key: string]: any; +} + +/** @internal */ +// Default Max Size +const MAXSIZE = 1024 * 1024 * 17; + +// Current Internal Temporary Serialization Buffer +let buffer = ByteUtils.allocate(MAXSIZE); + +/** + * Sets the size of the internal serialization buffer. + * + * @param size - The desired size for the internal serialization buffer in bytes + * @public + */ +export function setInternalBufferSize(size: number): void { + // Resize the internal serialization buffer if needed + if (buffer.length < size) { + buffer = ByteUtils.allocate(size); + } +} + +/** + * Serialize a Javascript object. + * + * @param object - the Javascript object to serialize. + * @returns Buffer object containing the serialized object. + * @public + */ +export function serialize(object: Document, options: SerializeOptions = {}): Uint8Array { + // Unpack the options + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const minInternalBufferSize = + typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE; + + // Resize the internal serialization buffer if needed + if (buffer.length < minInternalBufferSize) { + buffer = ByteUtils.allocate(minInternalBufferSize); + } + + // Attempt to serialize + const serializationIndex = serializeInto( + buffer, + object, + checkKeys, + 0, + 0, + serializeFunctions, + ignoreUndefined, + null + ); + + // Create the final buffer + const finishedBuffer = ByteUtils.allocateUnsafe(serializationIndex); + + // Copy into the finished buffer + finishedBuffer.set(buffer.subarray(0, serializationIndex), 0); + + // Return the buffer + return finishedBuffer; +} + +/** + * Serialize a Javascript object using a predefined Buffer and index into the buffer, + * useful when pre-allocating the space for serialization. + * + * @param object - the Javascript object to serialize. + * @param finalBuffer - the Buffer you pre-allocated to store the serialized BSON object. + * @returns the index pointing to the last written byte in the buffer. + * @public + */ +export function serializeWithBufferAndIndex( + object: Document, + finalBuffer: Uint8Array, + options: SerializeOptions = {} +): number { + // Unpack the options + const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + const serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + const startIndex = typeof options.index === 'number' ? options.index : 0; + + // Attempt to serialize + const serializationIndex = serializeInto( + buffer, + object, + checkKeys, + 0, + 0, + serializeFunctions, + ignoreUndefined, + null + ); + + finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex); + + // Return the index + return startIndex + serializationIndex - 1; +} + +/** + * Deserialize data as BSON. + * + * @param buffer - the buffer containing the serialized set of BSON documents. + * @returns returns the deserialized Javascript Object. + * @public + */ +export function deserialize(buffer: Uint8Array, options: DeserializeOptions = {}): Document { + return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options); +} + +/** @public */ +export type CalculateObjectSizeOptions = Pick< + SerializeOptions, + 'serializeFunctions' | 'ignoreUndefined' +>; + +/** + * Calculate the bson size for a passed in Javascript object. + * + * @param object - the Javascript object to calculate the BSON byte size for + * @returns size of BSON object in bytes + * @public + */ +export function calculateObjectSize( + object: Document, + options: CalculateObjectSizeOptions = {} +): number { + options = options || {}; + + const serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + const ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true; + + return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined); +} + +/** + * Deserialize stream data as BSON documents. + * + * @param data - the buffer containing the serialized set of BSON documents. + * @param startIndex - the start index in the data Buffer where the deserialization is to start. + * @param numberOfDocuments - number of documents to deserialize. + * @param documents - an array where to store the deserialized documents. + * @param docStartIndex - the index in the documents array from where to start inserting documents. + * @param options - additional options used for the deserialization. + * @returns next index in the buffer after deserialization **x** numbers of documents. + * @public + */ +export function deserializeStream( + data: Uint8Array | ArrayBuffer, + startIndex: number, + numberOfDocuments: number, + documents: Document[], + docStartIndex: number, + options: DeserializeOptions +): number { + const internalOptions = Object.assign( + { allowObjectSmallerThanBufferSize: true, index: 0 }, + options + ); + const bufferData = ByteUtils.toLocalBufferType(data); + + let index = startIndex; + // Loop over all documents + for (let i = 0; i < numberOfDocuments; i++) { + // Find size of the document + const size = NumberUtils.getInt32LE(bufferData, index); + // Update options with index + internalOptions.index = index; + // Parse the document at this point + documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions); + // Adjust index by the document size + index = index + size; + } + + // Return object containing end index of parsing and list of documents + return index; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/bson_value.ts b/week-3/04-course-app-hard/node_modules/bson/src/bson_value.ts new file mode 100644 index 000000000..069764d8c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/bson_value.ts @@ -0,0 +1,31 @@ +import { BSON_MAJOR_VERSION } from './constants'; +import { type InspectFn } from './parser/utils'; + +/** @public */ +export abstract class BSONValue { + /** @public */ + public abstract get _bsontype(): string; + + /** @internal */ + get [Symbol.for('@@mdb.bson.version')](): typeof BSON_MAJOR_VERSION { + return BSON_MAJOR_VERSION; + } + + [Symbol.for('nodejs.util.inspect.custom')]( + depth?: number, + options?: unknown, + inspect?: InspectFn + ): string { + return this.inspect(depth, options, inspect); + } + + /** + * @public + * Prints a human-readable string of BSON value information + * If invoked manually without node.js.inspect function, this will default to a modified JSON.stringify + */ + public abstract inspect(depth?: number, options?: unknown, inspect?: InspectFn): string; + + /** @internal */ + abstract toExtendedJSON(): unknown; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/code.ts b/week-3/04-course-app-hard/node_modules/bson/src/code.ts new file mode 100644 index 000000000..98b1ede9a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/code.ts @@ -0,0 +1,69 @@ +import type { Document } from './bson'; +import { BSONValue } from './bson_value'; +import { type InspectFn, defaultInspect } from './parser/utils'; + +/** @public */ +export interface CodeExtended { + $code: string; + $scope?: Document; +} + +/** + * A class representation of the BSON Code type. + * @public + * @category BSONType + */ +export class Code extends BSONValue { + get _bsontype(): 'Code' { + return 'Code'; + } + + code: string; + + // a code instance having a null scope is what determines whether + // it is BSONType 0x0D (just code) / 0x0F (code with scope) + scope: Document | null; + + /** + * @param code - a string or function. + * @param scope - an optional scope for the function. + */ + constructor(code: string | Function, scope?: Document | null) { + super(); + this.code = code.toString(); + this.scope = scope ?? null; + } + + toJSON(): { code: string; scope?: Document } { + if (this.scope != null) { + return { code: this.code, scope: this.scope }; + } + + return { code: this.code }; + } + + /** @internal */ + toExtendedJSON(): CodeExtended { + if (this.scope) { + return { $code: this.code, $scope: this.scope }; + } + + return { $code: this.code }; + } + + /** @internal */ + static fromExtendedJSON(doc: CodeExtended): Code { + return new Code(doc.$code, doc.$scope); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + let parametersString = inspect(this.code, options); + const multiLineFn = parametersString.includes('\n'); + if (this.scope != null) { + parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`; + } + const endingNewline = multiLineFn && this.scope === null; + return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/constants.ts b/week-3/04-course-app-hard/node_modules/bson/src/constants.ts new file mode 100644 index 000000000..7f273948b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/constants.ts @@ -0,0 +1,144 @@ +/** @internal */ +export const BSON_MAJOR_VERSION = 6; + +/** @internal */ +export const BSON_INT32_MAX = 0x7fffffff; +/** @internal */ +export const BSON_INT32_MIN = -0x80000000; +/** @internal */ +export const BSON_INT64_MAX = Math.pow(2, 63) - 1; +/** @internal */ +export const BSON_INT64_MIN = -Math.pow(2, 63); + +/** + * Any integer up to 2^53 can be precisely represented by a double. + * @internal + */ +export const JS_INT_MAX = Math.pow(2, 53); + +/** + * Any integer down to -2^53 can be precisely represented by a double. + * @internal + */ +export const JS_INT_MIN = -Math.pow(2, 53); + +/** Number BSON Type @internal */ +export const BSON_DATA_NUMBER = 1; + +/** String BSON Type @internal */ +export const BSON_DATA_STRING = 2; + +/** Object BSON Type @internal */ +export const BSON_DATA_OBJECT = 3; + +/** Array BSON Type @internal */ +export const BSON_DATA_ARRAY = 4; + +/** Binary BSON Type @internal */ +export const BSON_DATA_BINARY = 5; + +/** Binary BSON Type @internal */ +export const BSON_DATA_UNDEFINED = 6; + +/** ObjectId BSON Type @internal */ +export const BSON_DATA_OID = 7; + +/** Boolean BSON Type @internal */ +export const BSON_DATA_BOOLEAN = 8; + +/** Date BSON Type @internal */ +export const BSON_DATA_DATE = 9; + +/** null BSON Type @internal */ +export const BSON_DATA_NULL = 10; + +/** RegExp BSON Type @internal */ +export const BSON_DATA_REGEXP = 11; + +/** Code BSON Type @internal */ +export const BSON_DATA_DBPOINTER = 12; + +/** Code BSON Type @internal */ +export const BSON_DATA_CODE = 13; + +/** Symbol BSON Type @internal */ +export const BSON_DATA_SYMBOL = 14; + +/** Code with Scope BSON Type @internal */ +export const BSON_DATA_CODE_W_SCOPE = 15; + +/** 32 bit Integer BSON Type @internal */ +export const BSON_DATA_INT = 16; + +/** Timestamp BSON Type @internal */ +export const BSON_DATA_TIMESTAMP = 17; + +/** Long BSON Type @internal */ +export const BSON_DATA_LONG = 18; + +/** Decimal128 BSON Type @internal */ +export const BSON_DATA_DECIMAL128 = 19; + +/** MinKey BSON Type @internal */ +export const BSON_DATA_MIN_KEY = 0xff; + +/** MaxKey BSON Type @internal */ +export const BSON_DATA_MAX_KEY = 0x7f; + +/** Binary Default Type @internal */ +export const BSON_BINARY_SUBTYPE_DEFAULT = 0; + +/** Binary Function Type @internal */ +export const BSON_BINARY_SUBTYPE_FUNCTION = 1; + +/** Binary Byte Array Type @internal */ +export const BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2; + +/** Binary Deprecated UUID Type @deprecated Please use BSON_BINARY_SUBTYPE_UUID_NEW @internal */ +export const BSON_BINARY_SUBTYPE_UUID = 3; + +/** Binary UUID Type @internal */ +export const BSON_BINARY_SUBTYPE_UUID_NEW = 4; + +/** Binary MD5 Type @internal */ +export const BSON_BINARY_SUBTYPE_MD5 = 5; + +/** Encrypted BSON type @internal */ +export const BSON_BINARY_SUBTYPE_ENCRYPTED = 6; + +/** Column BSON type @internal */ +export const BSON_BINARY_SUBTYPE_COLUMN = 7; + +/** Sensitive BSON type @internal */ +export const BSON_BINARY_SUBTYPE_SENSITIVE = 8; + +/** Binary User Defined Type @internal */ +export const BSON_BINARY_SUBTYPE_USER_DEFINED = 128; + +/** @public */ +export const BSONType = Object.freeze({ + double: 1, + string: 2, + object: 3, + array: 4, + binData: 5, + undefined: 6, + objectId: 7, + bool: 8, + date: 9, + null: 10, + regex: 11, + dbPointer: 12, + javascript: 13, + symbol: 14, + javascriptWithScope: 15, + int: 16, + timestamp: 17, + long: 18, + decimal: 19, + minKey: -1, + maxKey: 127 +} as const); + +/** @public */ +export type BSONType = (typeof BSONType)[keyof typeof BSONType]; diff --git a/week-3/04-course-app-hard/node_modules/bson/src/db_ref.ts b/week-3/04-course-app-hard/node_modules/bson/src/db_ref.ts new file mode 100644 index 000000000..fbb751f8a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/db_ref.ts @@ -0,0 +1,128 @@ +import type { Document } from './bson'; +import { BSONValue } from './bson_value'; +import type { EJSONOptions } from './extended_json'; +import type { ObjectId } from './objectid'; +import { type InspectFn, defaultInspect } from './parser/utils'; + +/** @public */ +export interface DBRefLike { + $ref: string; + $id: ObjectId; + $db?: string; +} + +/** @internal */ +export function isDBRefLike(value: unknown): value is DBRefLike { + return ( + value != null && + typeof value === 'object' && + '$id' in value && + value.$id != null && + '$ref' in value && + typeof value.$ref === 'string' && + // If '$db' is defined it MUST be a string, otherwise it should be absent + (!('$db' in value) || ('$db' in value && typeof value.$db === 'string')) + ); +} + +/** + * A class representation of the BSON DBRef type. + * @public + * @category BSONType + */ +export class DBRef extends BSONValue { + get _bsontype(): 'DBRef' { + return 'DBRef'; + } + + collection!: string; + oid!: ObjectId; + db?: string; + fields!: Document; + + /** + * @param collection - the collection name. + * @param oid - the reference ObjectId. + * @param db - optional db name, if omitted the reference is local to the current db. + */ + constructor(collection: string, oid: ObjectId, db?: string, fields?: Document) { + super(); + // check if namespace has been provided + const parts = collection.split('.'); + if (parts.length === 2) { + db = parts.shift(); + collection = parts.shift()!; + } + + this.collection = collection; + this.oid = oid; + this.db = db; + this.fields = fields || {}; + } + + // Property provided for compatibility with the 1.x parser + // the 1.x parser used a "namespace" property, while 4.x uses "collection" + + /** @internal */ + get namespace(): string { + return this.collection; + } + + set namespace(value: string) { + this.collection = value; + } + + toJSON(): DBRefLike & Document { + const o = Object.assign( + { + $ref: this.collection, + $id: this.oid + }, + this.fields + ); + + if (this.db != null) o.$db = this.db; + return o; + } + + /** @internal */ + toExtendedJSON(options?: EJSONOptions): DBRefLike { + options = options || {}; + let o: DBRefLike = { + $ref: this.collection, + $id: this.oid + }; + + if (options.legacy) { + return o; + } + + if (this.db) o.$db = this.db; + o = Object.assign(o, this.fields); + return o; + } + + /** @internal */ + static fromExtendedJSON(doc: DBRefLike): DBRef { + const copy = Object.assign({}, doc) as Partial; + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(doc.$ref, doc.$id, doc.$db, copy); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + + const args = [ + inspect(this.namespace, options), + inspect(this.oid, options), + ...(this.db ? [inspect(this.db, options)] : []), + ...(Object.keys(this.fields).length > 0 ? [inspect(this.fields, options)] : []) + ]; + + args[1] = inspect === defaultInspect ? `new ObjectId(${args[1]})` : args[1]; + + return `new DBRef(${args.join(', ')})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/decimal128.ts b/week-3/04-course-app-hard/node_modules/bson/src/decimal128.ts new file mode 100644 index 000000000..806938e30 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/decimal128.ts @@ -0,0 +1,855 @@ +import { BSONValue } from './bson_value'; +import { BSONError } from './error'; +import { Long } from './long'; +import { type InspectFn, defaultInspect, isUint8Array } from './parser/utils'; +import { ByteUtils } from './utils/byte_utils'; + +const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/; +const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i; +const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i; + +const EXPONENT_MAX = 6111; +const EXPONENT_MIN = -6176; +const EXPONENT_BIAS = 6176; +const MAX_DIGITS = 34; + +// Nan value bits as 32 bit values (due to lack of longs) +const NAN_BUFFER = ByteUtils.fromNumberArray( + [ + 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + ].reverse() +); +// Infinity value bits 32 bit values (due to lack of longs) +const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray( + [ + 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + ].reverse() +); +const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray( + [ + 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + ].reverse() +); + +const EXPONENT_REGEX = /^([-+])?(\d+)?$/; + +// Extract least significant 5 bits +const COMBINATION_MASK = 0x1f; +// Extract least significant 14 bits +const EXPONENT_MASK = 0x3fff; +// Value of combination field for Inf +const COMBINATION_INFINITY = 30; +// Value of combination field for NaN +const COMBINATION_NAN = 31; + +// Detect if the value is a digit +function isDigit(value: string): boolean { + return !isNaN(parseInt(value, 10)); +} + +// Divide two uint128 values +function divideu128(value: { parts: [number, number, number, number] }) { + const DIVISOR = Long.fromNumber(1000 * 1000 * 1000); + let _rem = Long.fromNumber(0); + + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) { + return { quotient: value, rem: _rem }; + } + + for (let i = 0; i <= 3; i++) { + // Adjust remainder to match value of next dividend + _rem = _rem.shiftLeft(32); + // Add the divided to _rem + _rem = _rem.add(new Long(value.parts[i], 0)); + value.parts[i] = _rem.div(DIVISOR).low; + _rem = _rem.modulo(DIVISOR); + } + + return { quotient: value, rem: _rem }; +} + +// Multiply two Long values and return the 128 bit value +function multiply64x2(left: Long, right: Long): { high: Long; low: Long } { + if (!left && !right) { + return { high: Long.fromNumber(0), low: Long.fromNumber(0) }; + } + + const leftHigh = left.shiftRightUnsigned(32); + const leftLow = new Long(left.getLowBits(), 0); + const rightHigh = right.shiftRightUnsigned(32); + const rightLow = new Long(right.getLowBits(), 0); + + let productHigh = leftHigh.multiply(rightHigh); + let productMid = leftHigh.multiply(rightLow); + const productMid2 = leftLow.multiply(rightHigh); + let productLow = leftLow.multiply(rightLow); + + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productMid = new Long(productMid.getLowBits(), 0) + .add(productMid2) + .add(productLow.shiftRightUnsigned(32)); + + productHigh = productHigh.add(productMid.shiftRightUnsigned(32)); + productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0)); + + // Return the 128 bit result + return { high: productHigh, low: productLow }; +} + +function lessThan(left: Long, right: Long): boolean { + // Make values unsigned + const uhleft = left.high >>> 0; + const uhright = right.high >>> 0; + + // Compare high bits first + if (uhleft < uhright) { + return true; + } else if (uhleft === uhright) { + const ulleft = left.low >>> 0; + const ulright = right.low >>> 0; + if (ulleft < ulright) return true; + } + + return false; +} + +function invalidErr(string: string, message: string) { + throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`); +} + +/** @public */ +export interface Decimal128Extended { + $numberDecimal: string; +} + +/** + * A class representation of the BSON Decimal128 type. + * @public + * @category BSONType + */ +export class Decimal128 extends BSONValue { + get _bsontype(): 'Decimal128' { + return 'Decimal128'; + } + + readonly bytes!: Uint8Array; + + /** + * @param bytes - a buffer containing the raw Decimal128 bytes in little endian order, + * or a string representation as returned by .toString() + */ + constructor(bytes: Uint8Array | string) { + super(); + if (typeof bytes === 'string') { + this.bytes = Decimal128.fromString(bytes).bytes; + } else if (isUint8Array(bytes)) { + if (bytes.byteLength !== 16) { + throw new BSONError('Decimal128 must take a Buffer of 16 bytes'); + } + this.bytes = bytes; + } else { + throw new BSONError('Decimal128 must take a Buffer or string'); + } + } + + /** + * Create a Decimal128 instance from a string representation + * + * @param representation - a numeric string representation. + */ + static fromString(representation: string): Decimal128 { + return Decimal128._fromString(representation, { allowRounding: false }); + } + + /** + * Create a Decimal128 instance from a string representation, allowing for rounding to 34 + * significant digits + * + * @example Example of a number that will be rounded + * ```ts + * > let d = Decimal128.fromString('37.499999999999999196428571428571375') + * Uncaught: + * BSONError: "37.499999999999999196428571428571375" is not a valid Decimal128 string - inexact rounding + * at invalidErr (/home/wajames/js-bson/lib/bson.cjs:1402:11) + * at Decimal128.fromStringInternal (/home/wajames/js-bson/lib/bson.cjs:1633:25) + * at Decimal128.fromString (/home/wajames/js-bson/lib/bson.cjs:1424:27) + * + * > d = Decimal128.fromStringWithRounding('37.499999999999999196428571428571375') + * new Decimal128("37.49999999999999919642857142857138") + * ``` + * @param representation - a numeric string representation. + */ + static fromStringWithRounding(representation: string): Decimal128 { + return Decimal128._fromString(representation, { allowRounding: true }); + } + + private static _fromString(representation: string, options: { allowRounding: boolean }) { + // Parse state tracking + let isNegative = false; + let sawSign = false; + let sawRadix = false; + let foundNonZero = false; + + // Total number of significant digits (no leading or trailing zero) + let significantDigits = 0; + // Total number of significand digits read + let nDigitsRead = 0; + // Total number of digits (no leading zeros) + let nDigits = 0; + // The number of the digits after radix + let radixPosition = 0; + // The index of the first non-zero in *str* + let firstNonZero = 0; + + // Digits Array + const digits = [0]; + // The number of digits in digits + let nDigitsStored = 0; + // Insertion pointer for digits + let digitsInsert = 0; + // The index of the last digit + let lastDigit = 0; + + // Exponent + let exponent = 0; + // The high 17 digits of the significand + let significandHigh = new Long(0, 0); + // The low 17 digits of the significand + let significandLow = new Long(0, 0); + // The biased exponent + let biasedExponent = 0; + + // Read index + let index = 0; + + // Naively prevent against REDOS attacks. + // TODO: implementing a custom parsing for this, or refactoring the regex would yield + // further gains. + if (representation.length >= 7000) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + + // Results + const stringMatch = representation.match(PARSE_STRING_REGEXP); + const infMatch = representation.match(PARSE_INF_REGEXP); + const nanMatch = representation.match(PARSE_NAN_REGEXP); + + // Validate the string + if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) { + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + } + + if (stringMatch) { + // full_match = stringMatch[0] + // sign = stringMatch[1] + + const unsignedNumber = stringMatch[2]; + // stringMatch[3] is undefined if a whole number (ex "1", 12") + // but defined if a number w/ decimal in it (ex "1.0, 12.2") + + const e = stringMatch[4]; + const expSign = stringMatch[5]; + const expNumber = stringMatch[6]; + + // they provided e, but didn't give an exponent number. for ex "1e" + if (e && expNumber === undefined) invalidErr(representation, 'missing exponent power'); + + // they provided e, but didn't give a number before it. for ex "e1" + if (e && unsignedNumber === undefined) invalidErr(representation, 'missing exponent base'); + + if (e === undefined && (expSign || expNumber)) { + invalidErr(representation, 'missing e before exponent'); + } + } + + // Get the negative or positive sign + if (representation[index] === '+' || representation[index] === '-') { + sawSign = true; + isNegative = representation[index++] === '-'; + } + + // Check if user passed Infinity or NaN + if (!isDigit(representation[index]) && representation[index] !== '.') { + if (representation[index] === 'i' || representation[index] === 'I') { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } else if (representation[index] === 'N') { + return new Decimal128(NAN_BUFFER); + } + } + + // Read all the digits + while (isDigit(representation[index]) || representation[index] === '.') { + if (representation[index] === '.') { + if (sawRadix) invalidErr(representation, 'contains multiple periods'); + + sawRadix = true; + index = index + 1; + continue; + } + + if (nDigitsStored < MAX_DIGITS) { + if (representation[index] !== '0' || foundNonZero) { + if (!foundNonZero) { + firstNonZero = nDigitsRead; + } + + foundNonZero = true; + + // Only store 34 digits + digits[digitsInsert++] = parseInt(representation[index], 10); + nDigitsStored = nDigitsStored + 1; + } + } + + if (foundNonZero) nDigits = nDigits + 1; + if (sawRadix) radixPosition = radixPosition + 1; + + nDigitsRead = nDigitsRead + 1; + index = index + 1; + } + + if (sawRadix && !nDigitsRead) + throw new BSONError('' + representation + ' not a valid Decimal128 string'); + + // Read exponent if exists + if (representation[index] === 'e' || representation[index] === 'E') { + // Read exponent digits + const match = representation.substr(++index).match(EXPONENT_REGEX); + + // No digits read + if (!match || !match[2]) return new Decimal128(NAN_BUFFER); + + // Get exponent + exponent = parseInt(match[0], 10); + + // Adjust the index + index = index + match[0].length; + } + + // Return not a number + if (representation[index]) return new Decimal128(NAN_BUFFER); + + // Done reading input + // Find first non-zero digit in digits + if (!nDigitsStored) { + digits[0] = 0; + nDigits = 1; + nDigitsStored = 1; + significantDigits = 0; + } else { + lastDigit = nDigitsStored - 1; + significantDigits = nDigits; + if (significantDigits !== 1) { + while ( + representation[ + firstNonZero + significantDigits - 1 + Number(sawSign) + Number(sawRadix) + ] === '0' + ) { + significantDigits = significantDigits - 1; + } + } + } + + // Normalization of exponent + // Correct exponent based on radix position, and shift significand as needed + // to represent user input + + // Overflow prevention + if (exponent <= radixPosition && radixPosition > exponent + (1 << 14)) { + exponent = EXPONENT_MIN; + } else { + exponent = exponent - radixPosition; + } + + // Attempt to normalize the exponent + while (exponent > EXPONENT_MAX) { + // Shift exponent to significand and decrease + lastDigit = lastDigit + 1; + if (lastDigit >= MAX_DIGITS) { + // Check if we have a zero then just hard clamp, otherwise fail + if (significantDigits === 0) { + exponent = EXPONENT_MAX; + break; + } + + invalidErr(representation, 'overflow'); + } + exponent = exponent - 1; + } + + if (options.allowRounding) { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + // Shift last digit. can only do this if < significant digits than # stored. + if (lastDigit === 0 && significantDigits < nDigitsStored) { + exponent = EXPONENT_MIN; + significantDigits = 0; + break; + } + + if (nDigitsStored < nDigits) { + // adjust to match digits not stored + nDigits = nDigits - 1; + } else { + // adjust to round + lastDigit = lastDigit - 1; + } + + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } else { + // Check if we have a zero then just hard clamp, otherwise fail + const digitsString = digits.join(''); + if (digitsString.match(/^0+$/)) { + exponent = EXPONENT_MAX; + break; + } + invalidErr(representation, 'overflow'); + } + } + + // Round + // We've normalized the exponent, but might still need to round. + if (lastDigit + 1 < significantDigits) { + let endOfString = nDigitsRead; + + // If we have seen a radix point, 'string' is 1 longer than we have + // documented with ndigits_read, so inc the position of the first nonzero + // digit and the position that digits are read to. + if (sawRadix) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + // if negative, we need to increment again to account for - sign at start. + if (sawSign) { + firstNonZero = firstNonZero + 1; + endOfString = endOfString + 1; + } + + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + let roundBit = 0; + + if (roundDigit >= 5) { + roundBit = 1; + if (roundDigit === 5) { + roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0; + for (let i = firstNonZero + lastDigit + 2; i < endOfString; i++) { + if (parseInt(representation[i], 10)) { + roundBit = 1; + break; + } + } + } + } + + if (roundBit) { + let dIdx = lastDigit; + + for (; dIdx >= 0; dIdx--) { + if (++digits[dIdx] > 9) { + digits[dIdx] = 0; + + // overflowed most significant digit + if (dIdx === 0) { + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + digits[dIdx] = 1; + } else { + return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER); + } + } + } else { + break; + } + } + } + } + } else { + while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) { + // Shift last digit. can only do this if < significant digits than # stored. + if (lastDigit === 0) { + if (significantDigits === 0) { + exponent = EXPONENT_MIN; + break; + } + + invalidErr(representation, 'exponent underflow'); + } + + if (nDigitsStored < nDigits) { + if ( + representation[nDigits - 1 + Number(sawSign) + Number(sawRadix)] !== '0' && + significantDigits !== 0 + ) { + invalidErr(representation, 'inexact rounding'); + } + // adjust to match digits not stored + nDigits = nDigits - 1; + } else { + if (digits[lastDigit] !== 0) { + invalidErr(representation, 'inexact rounding'); + } + // adjust to round + lastDigit = lastDigit - 1; + } + + if (exponent < EXPONENT_MAX) { + exponent = exponent + 1; + } else { + invalidErr(representation, 'overflow'); + } + } + + // Round + // We've normalized the exponent, but might still need to round. + if (lastDigit + 1 < significantDigits) { + // If we have seen a radix point, 'string' is 1 longer than we have + // documented with ndigits_read, so inc the position of the first nonzero + // digit and the position that digits are read to. + if (sawRadix) { + firstNonZero = firstNonZero + 1; + } + // if saw sign, we need to increment again to account for - or + sign at start. + if (sawSign) { + firstNonZero = firstNonZero + 1; + } + + const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10); + + if (roundDigit !== 0) { + invalidErr(representation, 'inexact rounding'); + } + } + } + + // Encode significand + // The high 17 digits of the significand + significandHigh = Long.fromNumber(0); + // The low 17 digits of the significand + significandLow = Long.fromNumber(0); + + // read a zero + if (significantDigits === 0) { + significandHigh = Long.fromNumber(0); + significandLow = Long.fromNumber(0); + } else if (lastDigit < 17) { + let dIdx = 0; + significandLow = Long.fromNumber(digits[dIdx++]); + significandHigh = new Long(0, 0); + + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } else { + let dIdx = 0; + significandHigh = Long.fromNumber(digits[dIdx++]); + + for (; dIdx <= lastDigit - 17; dIdx++) { + significandHigh = significandHigh.multiply(Long.fromNumber(10)); + significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx])); + } + + significandLow = Long.fromNumber(digits[dIdx++]); + + for (; dIdx <= lastDigit; dIdx++) { + significandLow = significandLow.multiply(Long.fromNumber(10)); + significandLow = significandLow.add(Long.fromNumber(digits[dIdx])); + } + } + + const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000')); + significand.low = significand.low.add(significandLow); + + if (lessThan(significand.low, significandLow)) { + significand.high = significand.high.add(Long.fromNumber(1)); + } + + // Biased exponent + biasedExponent = exponent + EXPONENT_BIAS; + const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) }; + + // Encode combination, exponent, and significand. + if ( + significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1)) + ) { + // Encode '11' into bits 1 to 3 + dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61)); + dec.high = dec.high.or( + Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47)) + ); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff))); + } else { + dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49)); + dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff))); + } + + dec.low = significand.low; + + // Encode sign + if (isNegative) { + dec.high = dec.high.or(Long.fromString('9223372036854775808')); + } + + // Encode into a buffer + const buffer = ByteUtils.allocateUnsafe(16); + index = 0; + + // Encode the low 64 bits of the decimal + // Encode low bits + buffer[index++] = dec.low.low & 0xff; + buffer[index++] = (dec.low.low >> 8) & 0xff; + buffer[index++] = (dec.low.low >> 16) & 0xff; + buffer[index++] = (dec.low.low >> 24) & 0xff; + // Encode high bits + buffer[index++] = dec.low.high & 0xff; + buffer[index++] = (dec.low.high >> 8) & 0xff; + buffer[index++] = (dec.low.high >> 16) & 0xff; + buffer[index++] = (dec.low.high >> 24) & 0xff; + + // Encode the high 64 bits of the decimal + // Encode low bits + buffer[index++] = dec.high.low & 0xff; + buffer[index++] = (dec.high.low >> 8) & 0xff; + buffer[index++] = (dec.high.low >> 16) & 0xff; + buffer[index++] = (dec.high.low >> 24) & 0xff; + // Encode high bits + buffer[index++] = dec.high.high & 0xff; + buffer[index++] = (dec.high.high >> 8) & 0xff; + buffer[index++] = (dec.high.high >> 16) & 0xff; + buffer[index++] = (dec.high.high >> 24) & 0xff; + + // Return the new Decimal128 + return new Decimal128(buffer); + } + /** Create a string representation of the raw Decimal128 value */ + toString(): string { + // Note: bits in this routine are referred to starting at 0, + // from the sign bit, towards the coefficient. + + // decoded biased exponent (14 bits) + let biased_exponent; + // the number of significand digits + let significand_digits = 0; + // the base-10 digits in the significand + const significand = new Array(36); + for (let i = 0; i < significand.length; i++) significand[i] = 0; + // read pointer into significand + let index = 0; + + // true if the number is zero + let is_zero = false; + + // the most significant significand bits (50-46) + let significand_msb; + // temporary storage for significand decoding + let significand128: { parts: [number, number, number, number] } = { parts: [0, 0, 0, 0] }; + // indexing variables + let j, k; + + // Output string + const string: string[] = []; + + // Unpack index + index = 0; + + // Buffer reference + const buffer = this.bytes; + + // Unpack the low 64bits into a long + // bits 96 - 127 + const low = + buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + // bits 64 - 95 + const midl = + buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + + // Unpack the high 64bits into a long + // bits 32 - 63 + const midh = + buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + // bits 0 - 31 + const high = + buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24); + + // Unpack index + index = 0; + + // Create the state of the decimal + const dec = { + low: new Long(low, midl), + high: new Long(midh, high) + }; + + if (dec.high.lessThan(Long.ZERO)) { + string.push('-'); + } + + // Decode combination field and exponent + // bits 1 - 5 + const combination = (high >> 26) & COMBINATION_MASK; + + if (combination >> 3 === 3) { + // Check for 'special' values + if (combination === COMBINATION_INFINITY) { + return string.join('') + 'Infinity'; + } else if (combination === COMBINATION_NAN) { + return 'NaN'; + } else { + biased_exponent = (high >> 15) & EXPONENT_MASK; + significand_msb = 0x08 + ((high >> 14) & 0x01); + } + } else { + significand_msb = (high >> 14) & 0x07; + biased_exponent = (high >> 17) & EXPONENT_MASK; + } + + // unbiased exponent + const exponent = biased_exponent - EXPONENT_BIAS; + + // Create string of significand digits + + // Convert the 114-bit binary number represented by + // (significand_high, significand_low) to at most 34 decimal + // digits through modulo and division. + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + + if ( + significand128.parts[0] === 0 && + significand128.parts[1] === 0 && + significand128.parts[2] === 0 && + significand128.parts[3] === 0 + ) { + is_zero = true; + } else { + for (k = 3; k >= 0; k--) { + let least_digits = 0; + // Perform the divide + const result = divideu128(significand128); + significand128 = result.quotient; + least_digits = result.rem.low; + + // We now have the 9 least significant digits (in base 2). + // Convert and output to string. + if (!least_digits) continue; + + for (j = 8; j >= 0; j--) { + // significand[k * 9 + j] = Math.round(least_digits % 10); + significand[k * 9 + j] = least_digits % 10; + // least_digits = Math.round(least_digits / 10); + least_digits = Math.floor(least_digits / 10); + } + } + } + + // Output format options: + // Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd + // Regular - ddd.ddd + + if (is_zero) { + significand_digits = 1; + significand[index] = 0; + } else { + significand_digits = 36; + while (!significand[index]) { + significand_digits = significand_digits - 1; + index = index + 1; + } + } + + // the exponent if scientific notation is used + const scientific_exponent = significand_digits - 1 + exponent; + + // The scientific exponent checks are dictated by the string conversion + // specification and are somewhat arbitrary cutoffs. + // + // We must check exponent > 0, because if this is the case, the number + // has trailing zeros. However, we *cannot* output these trailing zeros, + // because doing so would change the precision of the value, and would + // change stored data if the string converted number is round tripped. + if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) { + // Scientific format + + // if there are too many significant digits, we should just be treating numbers + // as + or - 0 and using the non-scientific exponent (this is for the "invalid + // representation should be treated as 0/-0" spec cases in decimal128-1.json) + if (significand_digits > 34) { + string.push(`${0}`); + if (exponent > 0) string.push(`E+${exponent}`); + else if (exponent < 0) string.push(`E${exponent}`); + return string.join(''); + } + + string.push(`${significand[index++]}`); + significand_digits = significand_digits - 1; + + if (significand_digits) { + string.push('.'); + } + + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + + // Exponent + string.push('E'); + if (scientific_exponent > 0) { + string.push(`+${scientific_exponent}`); + } else { + string.push(`${scientific_exponent}`); + } + } else { + // Regular format with no decimal place + if (exponent >= 0) { + for (let i = 0; i < significand_digits; i++) { + string.push(`${significand[index++]}`); + } + } else { + let radix_position = significand_digits + exponent; + + // non-zero digits before radix + if (radix_position > 0) { + for (let i = 0; i < radix_position; i++) { + string.push(`${significand[index++]}`); + } + } else { + string.push('0'); + } + + string.push('.'); + // add leading zeros after radix + while (radix_position++ < 0) { + string.push('0'); + } + + for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) { + string.push(`${significand[index++]}`); + } + } + } + + return string.join(''); + } + + toJSON(): Decimal128Extended { + return { $numberDecimal: this.toString() }; + } + + /** @internal */ + toExtendedJSON(): Decimal128Extended { + return { $numberDecimal: this.toString() }; + } + + /** @internal */ + static fromExtendedJSON(doc: Decimal128Extended): Decimal128 { + return Decimal128.fromString(doc.$numberDecimal); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + const d128string = inspect(this.toString(), options); + return `new Decimal128(${d128string})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/double.ts b/week-3/04-course-app-hard/node_modules/bson/src/double.ts new file mode 100644 index 000000000..4a3d12982 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/double.ts @@ -0,0 +1,115 @@ +import { BSONValue } from './bson_value'; +import { BSONError } from './error'; +import type { EJSONOptions } from './extended_json'; +import { type InspectFn, defaultInspect } from './parser/utils'; + +/** @public */ +export interface DoubleExtended { + $numberDouble: string; +} + +/** + * A class representation of the BSON Double type. + * @public + * @category BSONType + */ +export class Double extends BSONValue { + get _bsontype(): 'Double' { + return 'Double'; + } + + value!: number; + /** + * Create a Double type + * + * @param value - the number we want to represent as a double. + */ + constructor(value: number) { + super(); + if ((value as unknown) instanceof Number) { + value = value.valueOf(); + } + + this.value = +value; + } + + /** + * Attempt to create an double type from string. + * + * This method will throw a BSONError on any string input that is not representable as a IEEE-754 64-bit double. + * Notably, this method will also throw on the following string formats: + * - Strings in non-decimal and non-exponential formats (binary, hex, or octal digits) + * - Strings with characters other than numeric, floating point, or leading sign characters (Note: 'Infinity', '-Infinity', and 'NaN' input strings are still allowed) + * - Strings with leading and/or trailing whitespace + * + * Strings with leading zeros, however, are also allowed + * + * @param value - the string we want to represent as a double. + */ + static fromString(value: string): Double { + const coercedValue = Number(value); + + if (value === 'NaN') return new Double(NaN); + if (value === 'Infinity') return new Double(Infinity); + if (value === '-Infinity') return new Double(-Infinity); + + if (!Number.isFinite(coercedValue)) { + throw new BSONError(`Input: ${value} is not representable as a Double`); + } + if (value.trim() !== value) { + throw new BSONError(`Input: '${value}' contains whitespace`); + } + if (value === '') { + throw new BSONError(`Input is an empty string`); + } + if (/[^-0-9.+eE]/.test(value)) { + throw new BSONError(`Input: '${value}' is not in decimal or exponential notation`); + } + return new Double(coercedValue); + } + + /** + * Access the number value. + * + * @returns returns the wrapped double number. + */ + valueOf(): number { + return this.value; + } + + toJSON(): number { + return this.value; + } + + toString(radix?: number): string { + return this.value.toString(radix); + } + + /** @internal */ + toExtendedJSON(options?: EJSONOptions): number | DoubleExtended { + if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) { + return this.value; + } + + if (Object.is(Math.sign(this.value), -0)) { + // NOTE: JavaScript has +0 and -0, apparently to model limit calculations. If a user + // explicitly provided `-0` then we need to ensure the sign makes it into the output + return { $numberDouble: '-0.0' }; + } + + return { + $numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString() + }; + } + + /** @internal */ + static fromExtendedJSON(doc: DoubleExtended, options?: EJSONOptions): number | Double { + const doubleValue = parseFloat(doc.$numberDouble); + return options && options.relaxed ? doubleValue : new Double(doubleValue); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + return `new Double(${inspect(this.value, options)})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/error.ts b/week-3/04-course-app-hard/node_modules/bson/src/error.ts new file mode 100644 index 000000000..ef5184a4a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/error.ts @@ -0,0 +1,105 @@ +import { BSON_MAJOR_VERSION } from './constants'; + +/** + * @public + * @category Error + * + * `BSONError` objects are thrown when BSON encounters an error. + * + * This is the parent class for all the other errors thrown by this library. + */ +export class BSONError extends Error { + /** + * @internal + * The underlying algorithm for isBSONError may change to improve how strict it is + * about determining if an input is a BSONError. But it must remain backwards compatible + * with previous minors & patches of the current major version. + */ + protected get bsonError(): true { + return true; + } + + override get name(): string { + return 'BSONError'; + } + + constructor(message: string, options?: { cause?: unknown }) { + super(message, options); + } + + /** + * @public + * + * All errors thrown from the BSON library inherit from `BSONError`. + * This method can assist with determining if an error originates from the BSON library + * even if it does not pass an `instanceof` check against this class' constructor. + * + * @param value - any javascript value that needs type checking + */ + public static isBSONError(value: unknown): value is BSONError { + return ( + value != null && + typeof value === 'object' && + 'bsonError' in value && + value.bsonError === true && + // Do not access the following properties, just check existence + 'name' in value && + 'message' in value && + 'stack' in value + ); + } +} + +/** + * @public + * @category Error + */ +export class BSONVersionError extends BSONError { + get name(): 'BSONVersionError' { + return 'BSONVersionError'; + } + + constructor() { + super(`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.x.x`); + } +} + +/** + * @public + * @category Error + * + * An error generated when BSON functions encounter an unexpected input + * or reaches an unexpected/invalid internal state + * + */ +export class BSONRuntimeError extends BSONError { + get name(): 'BSONRuntimeError' { + return 'BSONRuntimeError'; + } + + constructor(message: string) { + super(message); + } +} + +/** + * @public + * @category Error + * + * @experimental + * + * An error generated when BSON bytes are invalid. + * Reports the offset the parser was able to reach before encountering the error. + */ +export class BSONOffsetError extends BSONError { + public get name(): 'BSONOffsetError' { + return 'BSONOffsetError'; + } + + public offset: number; + + constructor(message: string, offset: number, options?: { cause?: unknown }) { + super(`${message}. offset: ${offset}`, options); + this.offset = offset; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/extended_json.ts b/week-3/04-course-app-hard/node_modules/bson/src/extended_json.ts new file mode 100644 index 000000000..eb08b3c1f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/extended_json.ts @@ -0,0 +1,515 @@ +import { Binary } from './binary'; +import type { Document } from './bson'; +import { Code } from './code'; +import { + BSON_INT32_MAX, + BSON_INT32_MIN, + BSON_INT64_MAX, + BSON_INT64_MIN, + BSON_MAJOR_VERSION +} from './constants'; +import { DBRef, isDBRefLike } from './db_ref'; +import { Decimal128 } from './decimal128'; +import { Double } from './double'; +import { BSONError, BSONRuntimeError, BSONVersionError } from './error'; +import { Int32 } from './int_32'; +import { Long } from './long'; +import { MaxKey } from './max_key'; +import { MinKey } from './min_key'; +import { ObjectId } from './objectid'; +import { isDate, isRegExp, isMap } from './parser/utils'; +import { BSONRegExp } from './regexp'; +import { BSONSymbol } from './symbol'; +import { Timestamp } from './timestamp'; + +/** @public */ +export type EJSONOptions = { + /** + * Output using the Extended JSON v1 spec + * @defaultValue `false` + */ + legacy?: boolean; + /** + * Enable Extended JSON's `relaxed` mode, which attempts to return native JS types where possible, rather than BSON types + * @defaultValue `false` */ + relaxed?: boolean; + /** + * Enable native bigint support + * @defaultValue `false` + */ + useBigInt64?: boolean; +}; + +/** @internal */ +type BSONType = + | Binary + | Code + | DBRef + | Decimal128 + | Double + | Int32 + | Long + | MaxKey + | MinKey + | ObjectId + | BSONRegExp + | BSONSymbol + | Timestamp; + +function isBSONType(value: unknown): value is BSONType { + return ( + value != null && + typeof value === 'object' && + '_bsontype' in value && + typeof value._bsontype === 'string' + ); +} + +// all the types where we don't need to do any special processing and can just pass the EJSON +//straight to type.fromExtendedJSON +const keysToCodecs = { + $oid: ObjectId, + $binary: Binary, + $uuid: Binary, + $symbol: BSONSymbol, + $numberInt: Int32, + $numberDecimal: Decimal128, + $numberDouble: Double, + $numberLong: Long, + $minKey: MinKey, + $maxKey: MaxKey, + $regex: BSONRegExp, + $regularExpression: BSONRegExp, + $timestamp: Timestamp +} as const; + +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function deserializeValue(value: any, options: EJSONOptions = {}) { + if (typeof value === 'number') { + // TODO(NODE-4377): EJSON js number handling diverges from BSON + const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN; + const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN; + + if (options.relaxed || options.legacy) { + return value; + } + + if (Number.isInteger(value) && !Object.is(value, -0)) { + // interpret as being of the smallest BSON integer type that can represent the number exactly + if (in32BitRange) { + return new Int32(value); + } + if (in64BitRange) { + if (options.useBigInt64) { + // eslint-disable-next-line no-restricted-globals -- This is allowed here as useBigInt64=true + return BigInt(value); + } + return Long.fromNumber(value); + } + } + + // If the number is a non-integer or out of integer range, should interpret as BSON Double. + return new Double(value); + } + + // from here on out we're looking for bson types, so bail if its not an object + if (value == null || typeof value !== 'object') return value; + + // upgrade deprecated undefined to null + if (value.$undefined) return null; + + const keys = Object.keys(value).filter( + k => k.startsWith('$') && value[k] != null + ) as (keyof typeof keysToCodecs)[]; + for (let i = 0; i < keys.length; i++) { + const c = keysToCodecs[keys[i]]; + if (c) return c.fromExtendedJSON(value, options); + } + + if (value.$date != null) { + const d = value.$date; + const date = new Date(); + + if (options.legacy) { + if (typeof d === 'number') date.setTime(d); + else if (typeof d === 'string') date.setTime(Date.parse(d)); + else if (typeof d === 'bigint') date.setTime(Number(d)); + else throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } else { + if (typeof d === 'string') date.setTime(Date.parse(d)); + else if (Long.isLong(d)) date.setTime(d.toNumber()); + else if (typeof d === 'number' && options.relaxed) date.setTime(d); + else if (typeof d === 'bigint') date.setTime(Number(d)); + else throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`); + } + return date; + } + + if (value.$code != null) { + const copy = Object.assign({}, value); + if (value.$scope) { + copy.$scope = deserializeValue(value.$scope); + } + + return Code.fromExtendedJSON(value); + } + + if (isDBRefLike(value) || value.$dbPointer) { + const v = value.$ref ? value : value.$dbPointer; + + // we run into this in a "degenerate EJSON" case (with $id and $ref order flipped) + // because of the order JSON.parse goes through the document + if (v instanceof DBRef) return v; + + const dollarKeys = Object.keys(v).filter(k => k.startsWith('$')); + let valid = true; + dollarKeys.forEach(k => { + if (['$ref', '$id', '$db'].indexOf(k) === -1) valid = false; + }); + + // only make DBRef if $ keys are all valid + if (valid) return DBRef.fromExtendedJSON(v); + } + + return value; +} + +type EJSONSerializeOptions = EJSONOptions & { + seenObjects: { obj: unknown; propertyName: string }[]; +}; + +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function serializeArray(array: any[], options: EJSONSerializeOptions): any[] { + return array.map((v: unknown, index: number) => { + options.seenObjects.push({ propertyName: `index ${index}`, obj: null }); + try { + return serializeValue(v, options); + } finally { + options.seenObjects.pop(); + } + }); +} + +function getISOString(date: Date) { + const isoStr = date.toISOString(); + // we should only show milliseconds in timestamp if they're non-zero + return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z'; +} + +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function serializeValue(value: any, options: EJSONSerializeOptions): any { + if (value instanceof Map || isMap(value)) { + const obj: Record = Object.create(null); + for (const [k, v] of value) { + if (typeof k !== 'string') { + throw new BSONError('Can only serialize maps with string keys'); + } + obj[k] = v; + } + + return serializeValue(obj, options); + } + + if ((typeof value === 'object' || typeof value === 'function') && value !== null) { + const index = options.seenObjects.findIndex(entry => entry.obj === value); + if (index !== -1) { + const props = options.seenObjects.map(entry => entry.propertyName); + const leadingPart = props + .slice(0, index) + .map(prop => `${prop} -> `) + .join(''); + const alreadySeen = props[index]; + const circularPart = + ' -> ' + + props + .slice(index + 1, props.length - 1) + .map(prop => `${prop} -> `) + .join(''); + const current = props[props.length - 1]; + const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2); + const dashes = '-'.repeat( + circularPart.length + (alreadySeen.length + current.length) / 2 - 1 + ); + + throw new BSONError( + 'Converting circular structure to EJSON:\n' + + ` ${leadingPart}${alreadySeen}${circularPart}${current}\n` + + ` ${leadingSpace}\\${dashes}/` + ); + } + options.seenObjects[options.seenObjects.length - 1].obj = value; + } + + if (Array.isArray(value)) return serializeArray(value, options); + + if (value === undefined) return null; + + if (value instanceof Date || isDate(value)) { + const dateNum = value.getTime(), + // is it in year range 1970-9999? + inRange = dateNum > -1 && dateNum < 253402318800000; + + if (options.legacy) { + return options.relaxed && inRange + ? { $date: value.getTime() } + : { $date: getISOString(value) }; + } + return options.relaxed && inRange + ? { $date: getISOString(value) } + : { $date: { $numberLong: value.getTime().toString() } }; + } + + if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) { + if (Number.isInteger(value) && !Object.is(value, -0)) { + // interpret as being of the smallest BSON integer type that can represent the number exactly + if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) { + return { $numberInt: value.toString() }; + } + if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) { + // TODO(NODE-4377): EJSON js number handling diverges from BSON + return { $numberLong: value.toString() }; + } + } + return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() }; + } + + if (typeof value === 'bigint') { + /* eslint-disable no-restricted-globals -- This is allowed as we are accepting a bigint as input */ + if (!options.relaxed) { + return { $numberLong: BigInt.asIntN(64, value).toString() }; + } + return Number(BigInt.asIntN(64, value)); + /* eslint-enable */ + } + + if (value instanceof RegExp || isRegExp(value)) { + let flags = value.flags; + if (flags === undefined) { + const match = value.toString().match(/[gimuy]*$/); + if (match) { + flags = match[0]; + } + } + + const rx = new BSONRegExp(value.source, flags); + return rx.toExtendedJSON(options); + } + + if (value != null && typeof value === 'object') return serializeDocument(value, options); + return value; +} + +const BSON_TYPE_MAPPINGS = { + Binary: (o: Binary) => new Binary(o.value(), o.sub_type), + Code: (o: Code) => new Code(o.code, o.scope), + DBRef: (o: DBRef) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), // "namespace" for 1.x library backwards compat + Decimal128: (o: Decimal128) => new Decimal128(o.bytes), + Double: (o: Double) => new Double(o.value), + Int32: (o: Int32) => new Int32(o.value), + Long: ( + o: Long & { + low_: number; + high_: number; + unsigned_: boolean | undefined; + } + ) => + Long.fromBits( + // underscore variants for 1.x backwards compatibility + o.low != null ? o.low : o.low_, + o.low != null ? o.high : o.high_, + o.low != null ? o.unsigned : o.unsigned_ + ), + MaxKey: () => new MaxKey(), + MinKey: () => new MinKey(), + ObjectId: (o: ObjectId) => new ObjectId(o), + BSONRegExp: (o: BSONRegExp) => new BSONRegExp(o.pattern, o.options), + BSONSymbol: (o: BSONSymbol) => new BSONSymbol(o.value), + Timestamp: (o: Timestamp) => Timestamp.fromBits(o.low, o.high) +} as const; + +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function serializeDocument(doc: any, options: EJSONSerializeOptions) { + if (doc == null || typeof doc !== 'object') throw new BSONError('not an object instance'); + + const bsontype: BSONType['_bsontype'] = doc._bsontype; + if (typeof bsontype === 'undefined') { + // It's a regular object. Recursively serialize its property values. + const _doc: Document = {}; + for (const name of Object.keys(doc)) { + options.seenObjects.push({ propertyName: name, obj: null }); + try { + const value = serializeValue(doc[name], options); + if (name === '__proto__') { + Object.defineProperty(_doc, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } else { + _doc[name] = value; + } + } finally { + options.seenObjects.pop(); + } + } + return _doc; + } else if ( + doc != null && + typeof doc === 'object' && + typeof doc._bsontype === 'string' && + doc[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION + ) { + throw new BSONVersionError(); + } else if (isBSONType(doc)) { + // the "document" is really just a BSON type object + // eslint-disable-next-line @typescript-eslint/no-explicit-any + let outDoc: any = doc; + if (typeof outDoc.toExtendedJSON !== 'function') { + // There's no EJSON serialization function on the object. It's probably an + // object created by a previous version of this library (or another library) + // that's duck-typing objects to look like they were generated by this library). + // Copy the object into this library's version of that type. + const mapper = BSON_TYPE_MAPPINGS[doc._bsontype]; + if (!mapper) { + throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype); + } + outDoc = mapper(outDoc); + } + + // Two BSON types may have nested objects that may need to be serialized too + if (bsontype === 'Code' && outDoc.scope) { + outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options)); + } else if (bsontype === 'DBRef' && outDoc.oid) { + outDoc = new DBRef( + serializeValue(outDoc.collection, options), + serializeValue(outDoc.oid, options), + serializeValue(outDoc.db, options), + serializeValue(outDoc.fields, options) + ); + } + + return outDoc.toExtendedJSON(options); + } else { + throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype); + } +} + +/** + * Parse an Extended JSON string, constructing the JavaScript value or object described by that + * string. + * + * @example + * ```js + * const { EJSON } = require('bson'); + * const text = '{ "int32": { "$numberInt": "10" } }'; + * + * // prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } } + * console.log(EJSON.parse(text, { relaxed: false })); + * + * // prints { int32: 10 } + * console.log(EJSON.parse(text)); + * ``` + */ +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function parse(text: string, options?: EJSONOptions): any { + const ejsonOptions = { + useBigInt64: options?.useBigInt64 ?? false, + relaxed: options?.relaxed ?? true, + legacy: options?.legacy ?? false + }; + return JSON.parse(text, (key, value) => { + if (key.indexOf('\x00') !== -1) { + throw new BSONError( + `BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}` + ); + } + return deserializeValue(value, ejsonOptions); + }); +} + +/** + * Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer + * function is specified or optionally including only the specified properties if a replacer array + * is specified. + * + * @param value - The value to convert to extended JSON + * @param replacer - A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string + * @param space - A String or Number object that's used to insert white space into the output JSON string for readability purposes. + * @param options - Optional settings + * + * @example + * ```js + * const { EJSON } = require('bson'); + * const Int32 = require('mongodb').Int32; + * const doc = { int32: new Int32(10) }; + * + * // prints '{"int32":{"$numberInt":"10"}}' + * console.log(EJSON.stringify(doc, { relaxed: false })); + * + * // prints '{"int32":10}' + * console.log(EJSON.stringify(doc)); + * ``` + */ +function stringify( + // eslint-disable-next-line @typescript-eslint/no-explicit-any + value: any, + // eslint-disable-next-line @typescript-eslint/no-explicit-any + replacer?: (number | string)[] | ((this: any, key: string, value: any) => any) | EJSONOptions, + space?: string | number, + options?: EJSONOptions +): string { + if (space != null && typeof space === 'object') { + options = space; + space = 0; + } + if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) { + options = replacer; + replacer = undefined; + space = 0; + } + const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, { + seenObjects: [{ propertyName: '(root)', obj: null }] + }); + + const doc = serializeValue(value, serializeOptions); + return JSON.stringify(doc, replacer as Parameters[1], space); +} + +/** + * Serializes an object to an Extended JSON string, and reparse it as a JavaScript object. + * + * @param value - The object to serialize + * @param options - Optional settings passed to the `stringify` function + */ +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function EJSONserialize(value: any, options?: EJSONOptions): Document { + options = options || {}; + return JSON.parse(stringify(value, options)); +} + +/** + * Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types + * + * @param ejson - The Extended JSON object to deserialize + * @param options - Optional settings passed to the parse method + */ +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function EJSONdeserialize(ejson: Document, options?: EJSONOptions): any { + options = options || {}; + return parse(JSON.stringify(ejson), options); +} + +/** @public */ +const EJSON: { + parse: typeof parse; + stringify: typeof stringify; + serialize: typeof EJSONserialize; + deserialize: typeof EJSONdeserialize; +} = Object.create(null); +EJSON.parse = parse; +EJSON.stringify = stringify; +EJSON.serialize = EJSONserialize; +EJSON.deserialize = EJSONdeserialize; +Object.freeze(EJSON); +export { EJSON }; diff --git a/week-3/04-course-app-hard/node_modules/bson/src/index.ts b/week-3/04-course-app-hard/node_modules/bson/src/index.ts new file mode 100644 index 000000000..5ef415756 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/index.ts @@ -0,0 +1,19 @@ +import * as BSON from './bson'; + +// Export all named properties from BSON to support +// import { ObjectId, serialize } from 'bson'; +// const { ObjectId, serialize } = require('bson'); +export * from './bson'; + +// Export BSON as a namespace to support: +// import { BSON } from 'bson'; +// const { BSON } = require('bson'); +export { BSON }; + +// BSON does **NOT** have a default export + +// The following will crash in es module environments +// import BSON from 'bson'; + +// The following will work as expected, BSON as a namespace of all the APIs (BSON.ObjectId, BSON.serialize) +// const BSON = require('bson'); diff --git a/week-3/04-course-app-hard/node_modules/bson/src/int_32.ts b/week-3/04-course-app-hard/node_modules/bson/src/int_32.ts new file mode 100644 index 000000000..7c95027ce --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/int_32.ts @@ -0,0 +1,101 @@ +import { BSONValue } from './bson_value'; +import { BSON_INT32_MAX, BSON_INT32_MIN } from './constants'; +import { BSONError } from './error'; +import type { EJSONOptions } from './extended_json'; +import { type InspectFn, defaultInspect } from './parser/utils'; +import { removeLeadingZerosAndExplicitPlus } from './utils/string_utils'; + +/** @public */ +export interface Int32Extended { + $numberInt: string; +} + +/** + * A class representation of a BSON Int32 type. + * @public + * @category BSONType + */ +export class Int32 extends BSONValue { + get _bsontype(): 'Int32' { + return 'Int32'; + } + + value!: number; + /** + * Create an Int32 type + * + * @param value - the number we want to represent as an int32. + */ + constructor(value: number | string) { + super(); + if ((value as unknown) instanceof Number) { + value = value.valueOf(); + } + + this.value = +value | 0; + } + + /** + * Attempt to create an Int32 type from string. + * + * This method will throw a BSONError on any string input that is not representable as an Int32. + * Notably, this method will also throw on the following string formats: + * - Strings in non-decimal formats (exponent notation, binary, hex, or octal digits) + * - Strings non-numeric and non-leading sign characters (ex: '2.0', '24,000') + * - Strings with leading and/or trailing whitespace + * + * Strings with leading zeros, however, are allowed. + * + * @param value - the string we want to represent as an int32. + */ + static fromString(value: string): Int32 { + const cleanedValue = removeLeadingZerosAndExplicitPlus(value); + + const coercedValue = Number(value); + + if (BSON_INT32_MAX < coercedValue) { + throw new BSONError(`Input: '${value}' is larger than the maximum value for Int32`); + } else if (BSON_INT32_MIN > coercedValue) { + throw new BSONError(`Input: '${value}' is smaller than the minimum value for Int32`); + } else if (!Number.isSafeInteger(coercedValue)) { + throw new BSONError(`Input: '${value}' is not a safe integer`); + } else if (coercedValue.toString() !== cleanedValue) { + // catch all case + throw new BSONError(`Input: '${value}' is not a valid Int32 string`); + } + return new Int32(coercedValue); + } + + /** + * Access the number value. + * + * @returns returns the wrapped int32 number. + */ + valueOf(): number { + return this.value; + } + + toString(radix?: number): string { + return this.value.toString(radix); + } + + toJSON(): number { + return this.value; + } + + /** @internal */ + toExtendedJSON(options?: EJSONOptions): number | Int32Extended { + if (options && (options.relaxed || options.legacy)) return this.value; + return { $numberInt: this.value.toString() }; + } + + /** @internal */ + static fromExtendedJSON(doc: Int32Extended, options?: EJSONOptions): number | Int32 { + return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + return `new Int32(${inspect(this.value, options)})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/long.ts b/week-3/04-course-app-hard/node_modules/bson/src/long.ts new file mode 100644 index 000000000..07b2b2db1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/long.ts @@ -0,0 +1,1246 @@ +import { BSONValue } from './bson_value'; +import { BSONError } from './error'; +import type { EJSONOptions } from './extended_json'; +import { type InspectFn, defaultInspect } from './parser/utils'; +import type { Timestamp } from './timestamp'; +import * as StringUtils from './utils/string_utils'; + +interface LongWASMHelpers { + /** Gets the high bits of the last operation performed */ + get_high(this: void): number; + div_u( + this: void, + lowBits: number, + highBits: number, + lowBitsDivisor: number, + highBitsDivisor: number + ): number; + div_s( + this: void, + lowBits: number, + highBits: number, + lowBitsDivisor: number, + highBitsDivisor: number + ): number; + rem_u( + this: void, + lowBits: number, + highBits: number, + lowBitsDivisor: number, + highBitsDivisor: number + ): number; + rem_s( + this: void, + lowBits: number, + highBits: number, + lowBitsDivisor: number, + highBitsDivisor: number + ): number; + mul( + this: void, + lowBits: number, + highBits: number, + lowBitsMultiplier: number, + highBitsMultiplier: number + ): number; +} + +/** + * wasm optimizations, to do native i64 multiplication and divide + */ +let wasm: LongWASMHelpers | undefined = undefined; + +/* We do not want to have to include DOM types just for this check */ +// eslint-disable-next-line @typescript-eslint/no-explicit-any +declare const WebAssembly: any; + +try { + wasm = new WebAssembly.Instance( + new WebAssembly.Module( + // prettier-ignore + new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11]) + ), + {} + ).exports as unknown as LongWASMHelpers; +} catch { + // no wasm support +} + +const TWO_PWR_16_DBL = 1 << 16; +const TWO_PWR_24_DBL = 1 << 24; +const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL; +const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL; +const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2; + +/** A cache of the Long representations of small integer values. */ +const INT_CACHE: { [key: number]: Long } = {}; + +/** A cache of the Long representations of small unsigned integer values. */ +const UINT_CACHE: { [key: number]: Long } = {}; + +const MAX_INT64_STRING_LENGTH = 20; + +const DECIMAL_REG_EX = /^(\+?0|(\+|-)?[1-9][0-9]*)$/; + +/** @public */ +export interface LongExtended { + $numberLong: string; +} + +/** + * A class representing a 64-bit integer + * @public + * @category BSONType + * @remarks + * The internal representation of a long is the two given signed, 32-bit values. + * We use 32-bit pieces because these are the size of integers on which + * Javascript performs bit-operations. For operations like addition and + * multiplication, we split each number into 16 bit pieces, which can easily be + * multiplied within Javascript's floating-point representation without overflow + * or change in sign. + * In the algorithms below, we frequently reduce the negative case to the + * positive case by negating the input(s) and then post-processing the result. + * Note that we must ALWAYS check specially whether those values are MIN_VALUE + * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as + * a positive number, it overflows back into a negative). Not handling this + * case would often result in infinite recursion. + * Common constant values ZERO, ONE, NEG_ONE, etc. are found as static properties on this class. + */ +export class Long extends BSONValue { + get _bsontype(): 'Long' { + return 'Long'; + } + + /** An indicator used to reliably determine if an object is a Long or not. */ + get __isLong__(): boolean { + return true; + } + + /** + * The high 32 bits as a signed value. + */ + high: number; + + /** + * The low 32 bits as a signed value. + */ + low: number; + + /** + * Whether unsigned or not. + */ + unsigned: boolean; + + /** + * Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers. + * + * @param low - The low (signed) 32 bits of the long + * @param high - The high (signed) 32 bits of the long + * @param unsigned - Whether unsigned or not, defaults to signed + */ + constructor(low: number, high?: number, unsigned?: boolean); + /** + * Constructs a 64 bit two's-complement integer, given a bigint representation. + * + * @param value - BigInt representation of the long value + * @param unsigned - Whether unsigned or not, defaults to signed + */ + constructor(value: bigint, unsigned?: boolean); + /** + * Constructs a 64 bit two's-complement integer, given a string representation. + * + * @param value - String representation of the long value + * @param unsigned - Whether unsigned or not, defaults to signed + */ + constructor(value: string, unsigned?: boolean); + constructor( + lowOrValue: number | bigint | string = 0, + highOrUnsigned?: number | boolean, + unsigned?: boolean + ) { + super(); + const unsignedBool = typeof highOrUnsigned === 'boolean' ? highOrUnsigned : Boolean(unsigned); + const high = typeof highOrUnsigned === 'number' ? highOrUnsigned : 0; + const res = + typeof lowOrValue === 'string' + ? Long.fromString(lowOrValue, unsignedBool) + : typeof lowOrValue === 'bigint' + ? Long.fromBigInt(lowOrValue, unsignedBool) + : { low: lowOrValue | 0, high: high | 0, unsigned: unsignedBool }; + this.low = res.low; + this.high = res.high; + this.unsigned = res.unsigned; + } + + static TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL); + + /** Maximum unsigned value. */ + static MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true); + /** Signed zero */ + static ZERO = Long.fromInt(0); + /** Unsigned zero. */ + static UZERO = Long.fromInt(0, true); + /** Signed one. */ + static ONE = Long.fromInt(1); + /** Unsigned one. */ + static UONE = Long.fromInt(1, true); + /** Signed negative one. */ + static NEG_ONE = Long.fromInt(-1); + /** Maximum signed value. */ + static MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false); + /** Minimum signed value. */ + static MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false); + + /** + * Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits. + * Each is assumed to use 32 bits. + * @param lowBits - The low 32 bits + * @param highBits - The high 32 bits + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBits(lowBits: number, highBits: number, unsigned?: boolean): Long { + return new Long(lowBits, highBits, unsigned); + } + + /** + * Returns a Long representing the given 32 bit integer value. + * @param value - The 32 bit integer in question + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromInt(value: number, unsigned?: boolean): Long { + let obj, cachedObj, cache; + if (unsigned) { + value >>>= 0; + if ((cache = 0 <= value && value < 256)) { + cachedObj = UINT_CACHE[value]; + if (cachedObj) return cachedObj; + } + obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true); + if (cache) UINT_CACHE[value] = obj; + return obj; + } else { + value |= 0; + if ((cache = -128 <= value && value < 128)) { + cachedObj = INT_CACHE[value]; + if (cachedObj) return cachedObj; + } + obj = Long.fromBits(value, value < 0 ? -1 : 0, false); + if (cache) INT_CACHE[value] = obj; + return obj; + } + } + + /** + * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned. + * @param value - The number in question + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromNumber(value: number, unsigned?: boolean): Long { + if (isNaN(value)) return unsigned ? Long.UZERO : Long.ZERO; + if (unsigned) { + if (value < 0) return Long.UZERO; + if (value >= TWO_PWR_64_DBL) return Long.MAX_UNSIGNED_VALUE; + } else { + if (value <= -TWO_PWR_63_DBL) return Long.MIN_VALUE; + if (value + 1 >= TWO_PWR_63_DBL) return Long.MAX_VALUE; + } + if (value < 0) return Long.fromNumber(-value, unsigned).neg(); + return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned); + } + + /** + * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned. + * @param value - The number in question + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBigInt(value: bigint, unsigned?: boolean): Long { + // eslint-disable-next-line no-restricted-globals + const FROM_BIGINT_BIT_MASK = BigInt(0xffffffff); + // eslint-disable-next-line no-restricted-globals + const FROM_BIGINT_BIT_SHIFT = BigInt(32); + return new Long( + Number(value & FROM_BIGINT_BIT_MASK), + Number((value >> FROM_BIGINT_BIT_SHIFT) & FROM_BIGINT_BIT_MASK), + unsigned + ); + } + + /** + * @internal + * Returns a Long representation of the given string, written using the specified radix. + * Throws an error if `throwsError` is set to true and any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + private static _fromString(str: string, unsigned: boolean, radix: number): Long { + if (str.length === 0) throw new BSONError('empty string'); + if (radix < 2 || 36 < radix) throw new BSONError('radix'); + + let p; + if ((p = str.indexOf('-')) > 0) throw new BSONError('interior hyphen'); + else if (p === 0) { + return Long._fromString(str.substring(1), unsigned, radix).neg(); + } + + // Do several (8) digits each time through the loop, so as to + // minimize the calls to the very expensive emulated div. + const radixToPower = Long.fromNumber(Math.pow(radix, 8)); + + let result = Long.ZERO; + for (let i = 0; i < str.length; i += 8) { + const size = Math.min(8, str.length - i), + value = parseInt(str.substring(i, i + size), radix); + if (size < 8) { + const power = Long.fromNumber(Math.pow(radix, size)); + result = result.mul(power).add(Long.fromNumber(value)); + } else { + result = result.mul(radixToPower); + result = result.add(Long.fromNumber(value)); + } + } + result.unsigned = unsigned; + return result; + } + + /** + * Returns a signed Long representation of the given string, written using radix 10. + * Will throw an error if the given text is not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the radix 10 + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @returns The corresponding Long value + */ + static fromStringStrict(str: string): Long; + /** + * Returns a Long representation of the given string, written using the radix 10. + * Will throw an error if the given parameters are not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromStringStrict(str: string, unsigned?: boolean): Long; + /** + * Returns a signed Long representation of the given string, written using the specified radix. + * Will throw an error if the given parameters are not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromStringStrict(str: string, radix?: boolean): Long; + /** + * Returns a Long representation of the given string, written using the specified radix. + * Will throw an error if the given parameters are not exactly representable as a Long. + * Throws an error if any of the following conditions are true: + * - the string contains invalid characters for the given radix + * - the string contains whitespace + * - the value the string represents is too large or too small to be a Long + * Unlike Long.fromString, this method does not coerce '+/-Infinity' and 'NaN' to Long.Zero + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromStringStrict(str: string, unsigned?: boolean, radix?: number): Long; + static fromStringStrict(str: string, unsignedOrRadix?: boolean | number, radix?: number): Long { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + // For goog.math.long compatibility + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + + if (str.trim() !== str) { + throw new BSONError(`Input: '${str}' contains leading and/or trailing whitespace`); + } + if (!StringUtils.validateStringCharacters(str, radix)) { + throw new BSONError(`Input: '${str}' contains invalid characters for radix: ${radix}`); + } + + // remove leading zeros (for later string comparison and to make math faster) + const cleanedStr = StringUtils.removeLeadingZerosAndExplicitPlus(str); + + // check roundtrip result + const result = Long._fromString(cleanedStr, unsigned, radix); + if (result.toString(radix).toLowerCase() !== cleanedStr.toLowerCase()) { + throw new BSONError( + `Input: ${str} is not representable as ${result.unsigned ? 'an unsigned' : 'a signed'} 64-bit Long ${radix != null ? `with radix: ${radix}` : ''}` + ); + } + return result; + } + + /** + * Returns a signed Long representation of the given string, written using radix 10. + * + * If the input string is empty, this function will throw a BSONError. + * + * If input string does not have valid signed 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively + * - 'NaN' or '+/-Infinity' are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * + * @param str - The textual representation of the Long + * @returns The corresponding Long value + */ + static fromString(str: string): Long; + /** + * Returns a signed Long representation of the given string, written using the provided radix. + * + * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError. + * + * If input parameters do not have valid signed 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit signed long will be coerced to Long.MAX_VALUE and Long.MIN_VALUE respectively + * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO + * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * @param str - The textual representation of the Long + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromString(str: string, radix?: number): Long; + /** + * Returns a Long representation of the given string, written using radix 10. + * + * If the input string is empty, this function will throw a BSONError. + * + * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values + * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO + * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromString(str: string, unsigned?: boolean): Long; + /** + * Returns a Long representation of the given string, written using the specified radix. + * + * If the input string is empty or a provided radix is not within (2-36), this function will throw a BSONError. + * + * If input parameters do not have a valid 64-bit Long representation, this method will return a coerced value: + * - inputs that overflow 64-bit long will be coerced to max or min (if signed) values + * - if the radix is less than 24, 'NaN' is coerced to Long.ZERO + * - if the radix is less than 35, '+/-Infinity' inputs are coerced to Long.ZERO + * - other invalid characters sequences have variable behavior + * @param str - The textual representation of the Long + * @param unsigned - Whether unsigned or not, defaults to signed + * @param radix - The radix in which the text is written (2-36), defaults to 10 + * @returns The corresponding Long value + */ + static fromString(str: string, unsigned?: boolean, radix?: number): Long; + static fromString(str: string, unsignedOrRadix?: boolean | number, radix?: number): Long { + let unsigned = false; + if (typeof unsignedOrRadix === 'number') { + // For goog.math.long compatibility + (radix = unsignedOrRadix), (unsignedOrRadix = false); + } else { + unsigned = !!unsignedOrRadix; + } + radix ??= 10; + if (str === 'NaN' && radix < 24) { + // radix does not support n, so coerce to zero + return Long.ZERO; + } else if ((str === 'Infinity' || str === '+Infinity' || str === '-Infinity') && radix < 35) { + // radix does not support y, so coerce to zero + return Long.ZERO; + } + return Long._fromString(str, unsigned, radix); + } + + /** + * Creates a Long from its byte representation. + * @param bytes - Byte representation + * @param unsigned - Whether unsigned or not, defaults to signed + * @param le - Whether little or big endian, defaults to big endian + * @returns The corresponding Long value + */ + static fromBytes(bytes: number[], unsigned?: boolean, le?: boolean): Long { + return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned); + } + + /** + * Creates a Long from its little endian byte representation. + * @param bytes - Little endian byte representation + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBytesLE(bytes: number[], unsigned?: boolean): Long { + return new Long( + bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24), + bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24), + unsigned + ); + } + + /** + * Creates a Long from its big endian byte representation. + * @param bytes - Big endian byte representation + * @param unsigned - Whether unsigned or not, defaults to signed + * @returns The corresponding Long value + */ + static fromBytesBE(bytes: number[], unsigned?: boolean): Long { + return new Long( + (bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7], + (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3], + unsigned + ); + } + + /** + * Tests if the specified object is a Long. + */ + static isLong(value: unknown): value is Long { + return ( + value != null && + typeof value === 'object' && + '__isLong__' in value && + value.__isLong__ === true + ); + } + + /** + * Converts the specified value to a Long. + * @param unsigned - Whether unsigned or not, defaults to signed + */ + static fromValue( + val: number | string | { low: number; high: number; unsigned?: boolean }, + unsigned?: boolean + ): Long { + if (typeof val === 'number') return Long.fromNumber(val, unsigned); + if (typeof val === 'string') return Long.fromString(val, unsigned); + // Throws for non-objects, converts non-instanceof Long: + return Long.fromBits( + val.low, + val.high, + typeof unsigned === 'boolean' ? unsigned : val.unsigned + ); + } + + /** Returns the sum of this and the specified Long. */ + add(addend: string | number | Long | Timestamp): Long { + if (!Long.isLong(addend)) addend = Long.fromValue(addend); + + // Divide each number into 4 chunks of 16 bits, and then sum the chunks. + + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + + const b48 = addend.high >>> 16; + const b32 = addend.high & 0xffff; + const b16 = addend.low >>> 16; + const b00 = addend.low & 0xffff; + + let c48 = 0, + c32 = 0, + c16 = 0, + c00 = 0; + c00 += a00 + b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 + b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 + b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 + b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + + /** + * Returns the sum of this and the specified Long. + * @returns Sum + */ + and(other: string | number | Long | Timestamp): Long { + if (!Long.isLong(other)) other = Long.fromValue(other); + return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned); + } + + /** + * Compares this Long's value with the specified's. + * @returns 0 if they are the same, 1 if the this is greater and -1 if the given one is greater + */ + compare(other: string | number | Long | Timestamp): 0 | 1 | -1 { + if (!Long.isLong(other)) other = Long.fromValue(other); + if (this.eq(other)) return 0; + const thisNeg = this.isNegative(), + otherNeg = other.isNegative(); + if (thisNeg && !otherNeg) return -1; + if (!thisNeg && otherNeg) return 1; + // At this point the sign bits are the same + if (!this.unsigned) return this.sub(other).isNegative() ? -1 : 1; + // Both are positive if at least one is unsigned + return other.high >>> 0 > this.high >>> 0 || + (other.high === this.high && other.low >>> 0 > this.low >>> 0) + ? -1 + : 1; + } + + /** This is an alias of {@link Long.compare} */ + comp(other: string | number | Long | Timestamp): 0 | 1 | -1 { + return this.compare(other); + } + + /** + * Returns this Long divided by the specified. The result is signed if this Long is signed or unsigned if this Long is unsigned. + * @returns Quotient + */ + divide(divisor: string | number | Long | Timestamp): Long { + if (!Long.isLong(divisor)) divisor = Long.fromValue(divisor); + if (divisor.isZero()) throw new BSONError('division by zero'); + + // use wasm support if present + if (wasm) { + // guard against signed division overflow: the largest + // negative number / -1 would be 1 larger than the largest + // positive number, due to two's complement. + if ( + !this.unsigned && + this.high === -0x80000000 && + divisor.low === -1 && + divisor.high === -1 + ) { + // be consistent with non-wasm code path + return this; + } + const low = (this.unsigned ? wasm.div_u : wasm.div_s)( + this.low, + this.high, + divisor.low, + divisor.high + ); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + + if (this.isZero()) return this.unsigned ? Long.UZERO : Long.ZERO; + let approx, rem, res; + if (!this.unsigned) { + // This section is only relevant for signed longs and is derived from the + // closure library as a whole. + if (this.eq(Long.MIN_VALUE)) { + if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) return Long.MIN_VALUE; + // recall that -MIN_VALUE == MIN_VALUE + else if (divisor.eq(Long.MIN_VALUE)) return Long.ONE; + else { + // At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|. + const halfThis = this.shr(1); + approx = halfThis.div(divisor).shl(1); + if (approx.eq(Long.ZERO)) { + return divisor.isNegative() ? Long.ONE : Long.NEG_ONE; + } else { + rem = this.sub(divisor.mul(approx)); + res = approx.add(rem.div(divisor)); + return res; + } + } + } else if (divisor.eq(Long.MIN_VALUE)) return this.unsigned ? Long.UZERO : Long.ZERO; + if (this.isNegative()) { + if (divisor.isNegative()) return this.neg().div(divisor.neg()); + return this.neg().div(divisor).neg(); + } else if (divisor.isNegative()) return this.div(divisor.neg()).neg(); + res = Long.ZERO; + } else { + // The algorithm below has not been made for unsigned longs. It's therefore + // required to take special care of the MSB prior to running it. + if (!divisor.unsigned) divisor = divisor.toUnsigned(); + if (divisor.gt(this)) return Long.UZERO; + if (divisor.gt(this.shru(1))) + // 15 >>> 1 = 7 ; with divisor = 8 ; true + return Long.UONE; + res = Long.UZERO; + } + + // Repeat the following until the remainder is less than other: find a + // floating-point that approximates remainder / other *from below*, add this + // into the result, and subtract it from the remainder. It is critical that + // the approximate value is less than or equal to the real value so that the + // remainder never becomes negative. + // eslint-disable-next-line @typescript-eslint/no-this-alias + rem = this; + while (rem.gte(divisor)) { + // Approximate the result of division. This may be a little greater or + // smaller than the actual value. + approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber())); + + // We will tweak the approximate result by changing it in the 48-th digit or + // the smallest non-fractional digit, whichever is larger. + const log2 = Math.ceil(Math.log(approx) / Math.LN2); + const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48); + // Decrease the approximation until it is smaller than the remainder. Note + // that if it is too large, the product overflows and is negative. + let approxRes = Long.fromNumber(approx); + let approxRem = approxRes.mul(divisor); + while (approxRem.isNegative() || approxRem.gt(rem)) { + approx -= delta; + approxRes = Long.fromNumber(approx, this.unsigned); + approxRem = approxRes.mul(divisor); + } + + // We know the answer can't be zero... and actually, zero would cause + // infinite recursion since we would make no progress. + if (approxRes.isZero()) approxRes = Long.ONE; + + res = res.add(approxRes); + rem = rem.sub(approxRem); + } + return res; + } + + /**This is an alias of {@link Long.divide} */ + div(divisor: string | number | Long | Timestamp): Long { + return this.divide(divisor); + } + + /** + * Tests if this Long's value equals the specified's. + * @param other - Other value + */ + equals(other: string | number | Long | Timestamp): boolean { + if (!Long.isLong(other)) other = Long.fromValue(other); + if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1) + return false; + return this.high === other.high && this.low === other.low; + } + + /** This is an alias of {@link Long.equals} */ + eq(other: string | number | Long | Timestamp): boolean { + return this.equals(other); + } + + /** Gets the high 32 bits as a signed integer. */ + getHighBits(): number { + return this.high; + } + + /** Gets the high 32 bits as an unsigned integer. */ + getHighBitsUnsigned(): number { + return this.high >>> 0; + } + + /** Gets the low 32 bits as a signed integer. */ + getLowBits(): number { + return this.low; + } + + /** Gets the low 32 bits as an unsigned integer. */ + getLowBitsUnsigned(): number { + return this.low >>> 0; + } + + /** Gets the number of bits needed to represent the absolute value of this Long. */ + getNumBitsAbs(): number { + if (this.isNegative()) { + // Unsigned Longs are never negative + return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs(); + } + const val = this.high !== 0 ? this.high : this.low; + let bit: number; + for (bit = 31; bit > 0; bit--) if ((val & (1 << bit)) !== 0) break; + return this.high !== 0 ? bit + 33 : bit + 1; + } + + /** Tests if this Long's value is greater than the specified's. */ + greaterThan(other: string | number | Long | Timestamp): boolean { + return this.comp(other) > 0; + } + + /** This is an alias of {@link Long.greaterThan} */ + gt(other: string | number | Long | Timestamp): boolean { + return this.greaterThan(other); + } + + /** Tests if this Long's value is greater than or equal the specified's. */ + greaterThanOrEqual(other: string | number | Long | Timestamp): boolean { + return this.comp(other) >= 0; + } + + /** This is an alias of {@link Long.greaterThanOrEqual} */ + gte(other: string | number | Long | Timestamp): boolean { + return this.greaterThanOrEqual(other); + } + /** This is an alias of {@link Long.greaterThanOrEqual} */ + ge(other: string | number | Long | Timestamp): boolean { + return this.greaterThanOrEqual(other); + } + + /** Tests if this Long's value is even. */ + isEven(): boolean { + return (this.low & 1) === 0; + } + + /** Tests if this Long's value is negative. */ + isNegative(): boolean { + return !this.unsigned && this.high < 0; + } + + /** Tests if this Long's value is odd. */ + isOdd(): boolean { + return (this.low & 1) === 1; + } + + /** Tests if this Long's value is positive. */ + isPositive(): boolean { + return this.unsigned || this.high >= 0; + } + + /** Tests if this Long's value equals zero. */ + isZero(): boolean { + return this.high === 0 && this.low === 0; + } + + /** Tests if this Long's value is less than the specified's. */ + lessThan(other: string | number | Long | Timestamp): boolean { + return this.comp(other) < 0; + } + + /** This is an alias of {@link Long#lessThan}. */ + lt(other: string | number | Long | Timestamp): boolean { + return this.lessThan(other); + } + + /** Tests if this Long's value is less than or equal the specified's. */ + lessThanOrEqual(other: string | number | Long | Timestamp): boolean { + return this.comp(other) <= 0; + } + + /** This is an alias of {@link Long.lessThanOrEqual} */ + lte(other: string | number | Long | Timestamp): boolean { + return this.lessThanOrEqual(other); + } + + /** Returns this Long modulo the specified. */ + modulo(divisor: string | number | Long | Timestamp): Long { + if (!Long.isLong(divisor)) divisor = Long.fromValue(divisor); + + // use wasm support if present + if (wasm) { + const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)( + this.low, + this.high, + divisor.low, + divisor.high + ); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + + return this.sub(this.div(divisor).mul(divisor)); + } + + /** This is an alias of {@link Long.modulo} */ + mod(divisor: string | number | Long | Timestamp): Long { + return this.modulo(divisor); + } + /** This is an alias of {@link Long.modulo} */ + rem(divisor: string | number | Long | Timestamp): Long { + return this.modulo(divisor); + } + + /** + * Returns the product of this and the specified Long. + * @param multiplier - Multiplier + * @returns Product + */ + multiply(multiplier: string | number | Long | Timestamp): Long { + if (this.isZero()) return Long.ZERO; + if (!Long.isLong(multiplier)) multiplier = Long.fromValue(multiplier); + + // use wasm support if present + if (wasm) { + const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high); + return Long.fromBits(low, wasm.get_high(), this.unsigned); + } + + if (multiplier.isZero()) return Long.ZERO; + if (this.eq(Long.MIN_VALUE)) return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO; + if (multiplier.eq(Long.MIN_VALUE)) return this.isOdd() ? Long.MIN_VALUE : Long.ZERO; + + if (this.isNegative()) { + if (multiplier.isNegative()) return this.neg().mul(multiplier.neg()); + else return this.neg().mul(multiplier).neg(); + } else if (multiplier.isNegative()) return this.mul(multiplier.neg()).neg(); + + // If both longs are small, use float multiplication + if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24)) + return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned); + + // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products. + // We can skip products that would overflow. + + const a48 = this.high >>> 16; + const a32 = this.high & 0xffff; + const a16 = this.low >>> 16; + const a00 = this.low & 0xffff; + + const b48 = multiplier.high >>> 16; + const b32 = multiplier.high & 0xffff; + const b16 = multiplier.low >>> 16; + const b00 = multiplier.low & 0xffff; + + let c48 = 0, + c32 = 0, + c16 = 0, + c00 = 0; + c00 += a00 * b00; + c16 += c00 >>> 16; + c00 &= 0xffff; + c16 += a16 * b00; + c32 += c16 >>> 16; + c16 &= 0xffff; + c16 += a00 * b16; + c32 += c16 >>> 16; + c16 &= 0xffff; + c32 += a32 * b00; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a16 * b16; + c48 += c32 >>> 16; + c32 &= 0xffff; + c32 += a00 * b32; + c48 += c32 >>> 16; + c32 &= 0xffff; + c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; + c48 &= 0xffff; + return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned); + } + + /** This is an alias of {@link Long.multiply} */ + mul(multiplier: string | number | Long | Timestamp): Long { + return this.multiply(multiplier); + } + + /** Returns the Negation of this Long's value. */ + negate(): Long { + if (!this.unsigned && this.eq(Long.MIN_VALUE)) return Long.MIN_VALUE; + return this.not().add(Long.ONE); + } + + /** This is an alias of {@link Long.negate} */ + neg(): Long { + return this.negate(); + } + + /** Returns the bitwise NOT of this Long. */ + not(): Long { + return Long.fromBits(~this.low, ~this.high, this.unsigned); + } + + /** Tests if this Long's value differs from the specified's. */ + notEquals(other: string | number | Long | Timestamp): boolean { + return !this.equals(other); + } + + /** This is an alias of {@link Long.notEquals} */ + neq(other: string | number | Long | Timestamp): boolean { + return this.notEquals(other); + } + /** This is an alias of {@link Long.notEquals} */ + ne(other: string | number | Long | Timestamp): boolean { + return this.notEquals(other); + } + + /** + * Returns the bitwise OR of this Long and the specified. + */ + or(other: number | string | Long): Long { + if (!Long.isLong(other)) other = Long.fromValue(other); + return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned); + } + + /** + * Returns this Long with bits shifted to the left by the given amount. + * @param numBits - Number of bits + * @returns Shifted Long + */ + shiftLeft(numBits: number | Long): Long { + if (Long.isLong(numBits)) numBits = numBits.toInt(); + if ((numBits &= 63) === 0) return this; + else if (numBits < 32) + return Long.fromBits( + this.low << numBits, + (this.high << numBits) | (this.low >>> (32 - numBits)), + this.unsigned + ); + else return Long.fromBits(0, this.low << (numBits - 32), this.unsigned); + } + + /** This is an alias of {@link Long.shiftLeft} */ + shl(numBits: number | Long): Long { + return this.shiftLeft(numBits); + } + + /** + * Returns this Long with bits arithmetically shifted to the right by the given amount. + * @param numBits - Number of bits + * @returns Shifted Long + */ + shiftRight(numBits: number | Long): Long { + if (Long.isLong(numBits)) numBits = numBits.toInt(); + if ((numBits &= 63) === 0) return this; + else if (numBits < 32) + return Long.fromBits( + (this.low >>> numBits) | (this.high << (32 - numBits)), + this.high >> numBits, + this.unsigned + ); + else return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned); + } + + /** This is an alias of {@link Long.shiftRight} */ + shr(numBits: number | Long): Long { + return this.shiftRight(numBits); + } + + /** + * Returns this Long with bits logically shifted to the right by the given amount. + * @param numBits - Number of bits + * @returns Shifted Long + */ + shiftRightUnsigned(numBits: Long | number): Long { + if (Long.isLong(numBits)) numBits = numBits.toInt(); + numBits &= 63; + if (numBits === 0) return this; + else { + const high = this.high; + if (numBits < 32) { + const low = this.low; + return Long.fromBits( + (low >>> numBits) | (high << (32 - numBits)), + high >>> numBits, + this.unsigned + ); + } else if (numBits === 32) return Long.fromBits(high, 0, this.unsigned); + else return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned); + } + } + + /** This is an alias of {@link Long.shiftRightUnsigned} */ + shr_u(numBits: number | Long): Long { + return this.shiftRightUnsigned(numBits); + } + /** This is an alias of {@link Long.shiftRightUnsigned} */ + shru(numBits: number | Long): Long { + return this.shiftRightUnsigned(numBits); + } + + /** + * Returns the difference of this and the specified Long. + * @param subtrahend - Subtrahend + * @returns Difference + */ + subtract(subtrahend: string | number | Long | Timestamp): Long { + if (!Long.isLong(subtrahend)) subtrahend = Long.fromValue(subtrahend); + return this.add(subtrahend.neg()); + } + + /** This is an alias of {@link Long.subtract} */ + sub(subtrahend: string | number | Long | Timestamp): Long { + return this.subtract(subtrahend); + } + + /** Converts the Long to a 32 bit integer, assuming it is a 32 bit integer. */ + toInt(): number { + return this.unsigned ? this.low >>> 0 : this.low; + } + + /** Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa). */ + toNumber(): number { + if (this.unsigned) return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0); + return this.high * TWO_PWR_32_DBL + (this.low >>> 0); + } + + /** Converts the Long to a BigInt (arbitrary precision). */ + toBigInt(): bigint { + // eslint-disable-next-line no-restricted-globals -- This is allowed here as it is explicitly requesting a bigint + return BigInt(this.toString()); + } + + /** + * Converts this Long to its byte representation. + * @param le - Whether little or big endian, defaults to big endian + * @returns Byte representation + */ + toBytes(le?: boolean): number[] { + return le ? this.toBytesLE() : this.toBytesBE(); + } + + /** + * Converts this Long to its little endian byte representation. + * @returns Little endian byte representation + */ + toBytesLE(): number[] { + const hi = this.high, + lo = this.low; + return [ + lo & 0xff, + (lo >>> 8) & 0xff, + (lo >>> 16) & 0xff, + lo >>> 24, + hi & 0xff, + (hi >>> 8) & 0xff, + (hi >>> 16) & 0xff, + hi >>> 24 + ]; + } + + /** + * Converts this Long to its big endian byte representation. + * @returns Big endian byte representation + */ + toBytesBE(): number[] { + const hi = this.high, + lo = this.low; + return [ + hi >>> 24, + (hi >>> 16) & 0xff, + (hi >>> 8) & 0xff, + hi & 0xff, + lo >>> 24, + (lo >>> 16) & 0xff, + (lo >>> 8) & 0xff, + lo & 0xff + ]; + } + + /** + * Converts this Long to signed. + */ + toSigned(): Long { + if (!this.unsigned) return this; + return Long.fromBits(this.low, this.high, false); + } + + /** + * Converts the Long to a string written in the specified radix. + * @param radix - Radix (2-36), defaults to 10 + * @throws RangeError If `radix` is out of range + */ + toString(radix?: number): string { + radix = radix || 10; + if (radix < 2 || 36 < radix) throw new BSONError('radix'); + if (this.isZero()) return '0'; + if (this.isNegative()) { + // Unsigned Longs are never negative + if (this.eq(Long.MIN_VALUE)) { + // We need to change the Long value before it can be negated, so we remove + // the bottom-most digit in this base and then recurse to do the rest. + const radixLong = Long.fromNumber(radix), + div = this.div(radixLong), + rem1 = div.mul(radixLong).sub(this); + return div.toString(radix) + rem1.toInt().toString(radix); + } else return '-' + this.neg().toString(radix); + } + + // Do several (6) digits each time through the loop, so as to + // minimize the calls to the very expensive emulated div. + const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned); + // eslint-disable-next-line @typescript-eslint/no-this-alias + let rem: Long = this; + let result = ''; + // eslint-disable-next-line no-constant-condition + while (true) { + const remDiv = rem.div(radixToPower); + const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0; + let digits = intval.toString(radix); + rem = remDiv; + if (rem.isZero()) { + return digits + result; + } else { + while (digits.length < 6) digits = '0' + digits; + result = '' + digits + result; + } + } + } + + /** Converts this Long to unsigned. */ + toUnsigned(): Long { + if (this.unsigned) return this; + return Long.fromBits(this.low, this.high, true); + } + + /** Returns the bitwise XOR of this Long and the given one. */ + xor(other: Long | number | string): Long { + if (!Long.isLong(other)) other = Long.fromValue(other); + return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned); + } + + /** This is an alias of {@link Long.isZero} */ + eqz(): boolean { + return this.isZero(); + } + + /** This is an alias of {@link Long.lessThanOrEqual} */ + le(other: string | number | Long | Timestamp): boolean { + return this.lessThanOrEqual(other); + } + + /* + **************************************************************** + * BSON SPECIFIC ADDITIONS * + **************************************************************** + */ + toExtendedJSON(options?: EJSONOptions): number | LongExtended { + if (options && options.relaxed) return this.toNumber(); + return { $numberLong: this.toString() }; + } + static fromExtendedJSON( + doc: { $numberLong: string }, + options?: EJSONOptions + ): number | Long | bigint { + const { useBigInt64 = false, relaxed = true } = { ...options }; + + if (doc.$numberLong.length > MAX_INT64_STRING_LENGTH) { + throw new BSONError('$numberLong string is too long'); + } + + if (!DECIMAL_REG_EX.test(doc.$numberLong)) { + throw new BSONError(`$numberLong string "${doc.$numberLong}" is in an invalid format`); + } + + if (useBigInt64) { + /* eslint-disable no-restricted-globals -- Can use BigInt here as useBigInt64=true */ + const bigIntResult = BigInt(doc.$numberLong); + return BigInt.asIntN(64, bigIntResult); + /* eslint-enable */ + } + + const longResult = Long.fromString(doc.$numberLong); + if (relaxed) { + return longResult.toNumber(); + } + return longResult; + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + const longVal = inspect(this.toString(), options); + const unsignedVal = this.unsigned ? `, ${inspect(this.unsigned, options)}` : ''; + return `new Long(${longVal}${unsignedVal})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/max_key.ts b/week-3/04-course-app-hard/node_modules/bson/src/max_key.ts new file mode 100644 index 000000000..903f1d165 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/max_key.ts @@ -0,0 +1,31 @@ +import { BSONValue } from './bson_value'; + +/** @public */ +export interface MaxKeyExtended { + $maxKey: 1; +} + +/** + * A class representation of the BSON MaxKey type. + * @public + * @category BSONType + */ +export class MaxKey extends BSONValue { + get _bsontype(): 'MaxKey' { + return 'MaxKey'; + } + + /** @internal */ + toExtendedJSON(): MaxKeyExtended { + return { $maxKey: 1 }; + } + + /** @internal */ + static fromExtendedJSON(): MaxKey { + return new MaxKey(); + } + + inspect(): string { + return 'new MaxKey()'; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/min_key.ts b/week-3/04-course-app-hard/node_modules/bson/src/min_key.ts new file mode 100644 index 000000000..244e645ab --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/min_key.ts @@ -0,0 +1,31 @@ +import { BSONValue } from './bson_value'; + +/** @public */ +export interface MinKeyExtended { + $minKey: 1; +} + +/** + * A class representation of the BSON MinKey type. + * @public + * @category BSONType + */ +export class MinKey extends BSONValue { + get _bsontype(): 'MinKey' { + return 'MinKey'; + } + + /** @internal */ + toExtendedJSON(): MinKeyExtended { + return { $minKey: 1 }; + } + + /** @internal */ + static fromExtendedJSON(): MinKey { + return new MinKey(); + } + + inspect(): string { + return 'new MinKey()'; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/objectid.ts b/week-3/04-course-app-hard/node_modules/bson/src/objectid.ts new file mode 100644 index 000000000..98daecc88 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/objectid.ts @@ -0,0 +1,361 @@ +import { BSONValue } from './bson_value'; +import { BSONError } from './error'; +import { type InspectFn, defaultInspect } from './parser/utils'; +import { ByteUtils } from './utils/byte_utils'; +import { NumberUtils } from './utils/number_utils'; + +// Regular expression that checks for hex value +const checkForHexRegExp = new RegExp('^[0-9a-fA-F]{24}$'); + +// Unique sequence for the current process (initialized on first use) +let PROCESS_UNIQUE: Uint8Array | null = null; + +/** @public */ +export interface ObjectIdLike { + id: string | Uint8Array; + __id?: string; + toHexString(): string; +} + +/** @public */ +export interface ObjectIdExtended { + $oid: string; +} + +/** + * A class representation of the BSON ObjectId type. + * @public + * @category BSONType + */ +export class ObjectId extends BSONValue { + get _bsontype(): 'ObjectId' { + return 'ObjectId'; + } + + /** @internal */ + private static index = Math.floor(Math.random() * 0xffffff); + + static cacheHexString: boolean; + + /** ObjectId Bytes @internal */ + private buffer!: Uint8Array; + /** ObjectId hexString cache @internal */ + private __id?: string; + + /** + * Create ObjectId from a number. + * + * @param inputId - A number. + * @deprecated Instead, use `static createFromTime()` to set a numeric value for the new ObjectId. + */ + constructor(inputId: number); + /** + * Create ObjectId from a 24 character hex string. + * + * @param inputId - A 24 character hex string. + */ + constructor(inputId: string); + /** + * Create ObjectId from the BSON ObjectId type. + * + * @param inputId - The BSON ObjectId type. + */ + constructor(inputId: ObjectId); + /** + * Create ObjectId from the object type that has the toHexString method. + * + * @param inputId - The ObjectIdLike type. + */ + constructor(inputId: ObjectIdLike); + /** + * Create ObjectId from a 12 byte binary Buffer. + * + * @param inputId - A 12 byte binary Buffer. + */ + constructor(inputId: Uint8Array); + /** To generate a new ObjectId, use ObjectId() with no argument. */ + constructor(); + /** + * Implementation overload. + * + * @param inputId - All input types that are used in the constructor implementation. + */ + constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array); + /** + * Create a new ObjectId. + * + * @param inputId - An input value to create a new ObjectId from. + */ + constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array) { + super(); + // workingId is set based on type of input and whether valid id exists for the input + let workingId; + if (typeof inputId === 'object' && inputId && 'id' in inputId) { + if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) { + throw new BSONError('Argument passed in must have an id that is of type string or Buffer'); + } + if ('toHexString' in inputId && typeof inputId.toHexString === 'function') { + workingId = ByteUtils.fromHex(inputId.toHexString()); + } else { + workingId = inputId.id; + } + } else { + workingId = inputId; + } + + // The following cases use workingId to construct an ObjectId + if (workingId == null || typeof workingId === 'number') { + // The most common use case (blank id, new objectId instance) + // Generate a new id + this.buffer = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined); + } else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) { + // If intstanceof matches we can escape calling ensure buffer in Node.js environments + this.buffer = ByteUtils.toLocalBufferType(workingId); + } else if (typeof workingId === 'string') { + if (workingId.length === 24 && checkForHexRegExp.test(workingId)) { + this.buffer = ByteUtils.fromHex(workingId); + } else { + throw new BSONError( + 'input must be a 24 character hex string, 12 byte Uint8Array, or an integer' + ); + } + } else { + throw new BSONError('Argument passed in does not match the accepted types'); + } + // If we are caching the hex string + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(this.id); + } + } + + /** + * The ObjectId bytes + * @readonly + */ + get id(): Uint8Array { + return this.buffer; + } + + set id(value: Uint8Array) { + this.buffer = value; + if (ObjectId.cacheHexString) { + this.__id = ByteUtils.toHex(value); + } + } + + /** Returns the ObjectId id as a 24 lowercase character hex string representation */ + toHexString(): string { + if (ObjectId.cacheHexString && this.__id) { + return this.__id; + } + + const hexString = ByteUtils.toHex(this.id); + + if (ObjectId.cacheHexString && !this.__id) { + this.__id = hexString; + } + + return hexString; + } + + /** + * Update the ObjectId index + * @internal + */ + private static getInc(): number { + return (ObjectId.index = (ObjectId.index + 1) % 0xffffff); + } + + /** + * Generate a 12 byte id buffer used in ObjectId's + * + * @param time - pass in a second based timestamp. + */ + static generate(time?: number): Uint8Array { + if ('number' !== typeof time) { + time = Math.floor(Date.now() / 1000); + } + + const inc = ObjectId.getInc(); + const buffer = ByteUtils.allocateUnsafe(12); + + // 4-byte timestamp + NumberUtils.setInt32BE(buffer, 0, time); + + // set PROCESS_UNIQUE if yet not initialized + if (PROCESS_UNIQUE === null) { + PROCESS_UNIQUE = ByteUtils.randomBytes(5); + } + + // 5-byte process unique + buffer[4] = PROCESS_UNIQUE[0]; + buffer[5] = PROCESS_UNIQUE[1]; + buffer[6] = PROCESS_UNIQUE[2]; + buffer[7] = PROCESS_UNIQUE[3]; + buffer[8] = PROCESS_UNIQUE[4]; + + // 3-byte counter + buffer[11] = inc & 0xff; + buffer[10] = (inc >> 8) & 0xff; + buffer[9] = (inc >> 16) & 0xff; + + return buffer; + } + + /** + * Converts the id into a 24 character hex string for printing, unless encoding is provided. + * @param encoding - hex or base64 + */ + toString(encoding?: 'hex' | 'base64'): string { + // Is the id a buffer then use the buffer toString method to return the format + if (encoding === 'base64') return ByteUtils.toBase64(this.id); + if (encoding === 'hex') return this.toHexString(); + return this.toHexString(); + } + + /** Converts to its JSON the 24 character hex string representation. */ + toJSON(): string { + return this.toHexString(); + } + + /** @internal */ + private static is(variable: unknown): variable is ObjectId { + return ( + variable != null && + typeof variable === 'object' && + '_bsontype' in variable && + variable._bsontype === 'ObjectId' + ); + } + + /** + * Compares the equality of this ObjectId with `otherID`. + * + * @param otherId - ObjectId instance to compare against. + */ + equals(otherId: string | ObjectId | ObjectIdLike | undefined | null): boolean { + if (otherId === undefined || otherId === null) { + return false; + } + + if (ObjectId.is(otherId)) { + return ( + this.buffer[11] === otherId.buffer[11] && ByteUtils.equals(this.buffer, otherId.buffer) + ); + } + + if (typeof otherId === 'string') { + return otherId.toLowerCase() === this.toHexString(); + } + + if (typeof otherId === 'object' && typeof otherId.toHexString === 'function') { + const otherIdString = otherId.toHexString(); + const thisIdString = this.toHexString(); + return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString; + } + + return false; + } + + /** Returns the generation date (accurate up to the second) that this ID was generated. */ + getTimestamp(): Date { + const timestamp = new Date(); + const time = NumberUtils.getUint32BE(this.buffer, 0); + timestamp.setTime(Math.floor(time) * 1000); + return timestamp; + } + + /** @internal */ + static createPk(): ObjectId { + return new ObjectId(); + } + + /** @internal */ + serializeInto(uint8array: Uint8Array, index: number): 12 { + uint8array[index] = this.buffer[0]; + uint8array[index + 1] = this.buffer[1]; + uint8array[index + 2] = this.buffer[2]; + uint8array[index + 3] = this.buffer[3]; + uint8array[index + 4] = this.buffer[4]; + uint8array[index + 5] = this.buffer[5]; + uint8array[index + 6] = this.buffer[6]; + uint8array[index + 7] = this.buffer[7]; + uint8array[index + 8] = this.buffer[8]; + uint8array[index + 9] = this.buffer[9]; + uint8array[index + 10] = this.buffer[10]; + uint8array[index + 11] = this.buffer[11]; + return 12; + } + + /** + * Creates an ObjectId from a second based number, with the rest of the ObjectId zeroed out. Used for comparisons or sorting the ObjectId. + * + * @param time - an integer number representing a number of seconds. + */ + static createFromTime(time: number): ObjectId { + const buffer = ByteUtils.allocate(12); + for (let i = 11; i >= 4; i--) buffer[i] = 0; + // Encode time into first 4 bytes + NumberUtils.setInt32BE(buffer, 0, time); + // Return the new objectId + return new ObjectId(buffer); + } + + /** + * Creates an ObjectId from a hex string representation of an ObjectId. + * + * @param hexString - create a ObjectId from a passed in 24 character hexstring. + */ + static createFromHexString(hexString: string): ObjectId { + if (hexString?.length !== 24) { + throw new BSONError('hex string must be 24 characters'); + } + + return new ObjectId(ByteUtils.fromHex(hexString)); + } + + /** Creates an ObjectId instance from a base64 string */ + static createFromBase64(base64: string): ObjectId { + if (base64?.length !== 16) { + throw new BSONError('base64 string must be 16 characters'); + } + + return new ObjectId(ByteUtils.fromBase64(base64)); + } + + /** + * Checks if a value can be used to create a valid bson ObjectId + * @param id - any JS value + */ + static isValid(id: string | number | ObjectId | ObjectIdLike | Uint8Array): boolean { + if (id == null) return false; + + try { + new ObjectId(id); + return true; + } catch { + return false; + } + } + + /** @internal */ + toExtendedJSON(): ObjectIdExtended { + if (this.toHexString) return { $oid: this.toHexString() }; + return { $oid: this.toString('hex') }; + } + + /** @internal */ + static fromExtendedJSON(doc: ObjectIdExtended): ObjectId { + return new ObjectId(doc.$oid); + } + + /** + * Converts to a string representation of this Id. + * + * @returns return the 24 character hex string representation. + */ + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + return `new ObjectId(${inspect(this.toHexString(), options)})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parse_utf8.ts b/week-3/04-course-app-hard/node_modules/bson/src/parse_utf8.ts new file mode 100644 index 000000000..045a9080b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parse_utf8.ts @@ -0,0 +1,35 @@ +import { BSONError } from './error'; + +type TextDecoder = { + readonly encoding: string; + readonly fatal: boolean; + readonly ignoreBOM: boolean; + decode(input?: Uint8Array): string; +}; +type TextDecoderConstructor = { + new (label: 'utf8', options: { fatal: boolean; ignoreBOM?: boolean }): TextDecoder; +}; + +// parse utf8 globals +declare const TextDecoder: TextDecoderConstructor; +let TextDecoderFatal: TextDecoder; +let TextDecoderNonFatal: TextDecoder; + +/** + * Determines if the passed in bytes are valid utf8 + * @param bytes - An array of 8-bit bytes. Must be indexable and have length property + * @param start - The index to start validating + * @param end - The index to end validating + */ +export function parseUtf8(buffer: Uint8Array, start: number, end: number, fatal: boolean): string { + if (fatal) { + TextDecoderFatal ??= new TextDecoder('utf8', { fatal: true }); + try { + return TextDecoderFatal.decode(buffer.subarray(start, end)); + } catch (cause) { + throw new BSONError('Invalid UTF-8 string in BSON document', { cause }); + } + } + TextDecoderNonFatal ??= new TextDecoder('utf8', { fatal: false }); + return TextDecoderNonFatal.decode(buffer.subarray(start, end)); +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parser/calculate_size.ts b/week-3/04-course-app-hard/node_modules/bson/src/parser/calculate_size.ts new file mode 100644 index 000000000..fd1e4a029 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parser/calculate_size.ts @@ -0,0 +1,211 @@ +import { Binary } from '../binary'; +import type { Document } from '../bson'; +import { BSONVersionError } from '../error'; +import * as constants from '../constants'; +import { ByteUtils } from '../utils/byte_utils'; +import { isAnyArrayBuffer, isDate, isRegExp } from './utils'; + +export function internalCalculateObjectSize( + object: Document, + serializeFunctions?: boolean, + ignoreUndefined?: boolean +): number { + let totalLength = 4 + 1; + + if (Array.isArray(object)) { + for (let i = 0; i < object.length; i++) { + totalLength += calculateElement( + i.toString(), + object[i], + serializeFunctions, + true, + ignoreUndefined + ); + } + } else { + // If we have toBSON defined, override the current object + + if (typeof object?.toBSON === 'function') { + object = object.toBSON(); + } + + // Calculate size + for (const key of Object.keys(object)) { + totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined); + } + } + + return totalLength; +} + +/** @internal */ +function calculateElement( + name: string, + // eslint-disable-next-line @typescript-eslint/no-explicit-any + value: any, + serializeFunctions = false, + isArray = false, + ignoreUndefined = false +) { + // If we have toBSON defined, override the current object + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + + switch (typeof value) { + case 'string': + return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1; + case 'number': + if ( + Math.floor(value) === value && + value >= constants.JS_INT_MIN && + value <= constants.JS_INT_MAX + ) { + if (value >= constants.BSON_INT32_MIN && value <= constants.BSON_INT32_MAX) { + // 32 bit + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1); + } else { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + } else { + // 64 bit + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } + case 'undefined': + if (isArray || !ignoreUndefined) + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + return 0; + case 'boolean': + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1); + case 'object': + if ( + value != null && + typeof value._bsontype === 'string' && + value[Symbol.for('@@mdb.bson.version')] !== constants.BSON_MAJOR_VERSION + ) { + throw new BSONVersionError(); + } else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1; + } else if (value._bsontype === 'ObjectId') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1); + } else if (value instanceof Date || isDate(value)) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } else if ( + ArrayBuffer.isView(value) || + value instanceof ArrayBuffer || + isAnyArrayBuffer(value) + ) { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength + ); + } else if ( + value._bsontype === 'Long' || + value._bsontype === 'Double' || + value._bsontype === 'Timestamp' + ) { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1); + } else if (value._bsontype === 'Decimal128') { + return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1); + } else if (value._bsontype === 'Code') { + // Calculate size depending on the availability of a scope + if (value.scope != null && Object.keys(value.scope).length > 0) { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1 + + internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined) + ); + } else { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.code.toString()) + + 1 + ); + } + } else if (value._bsontype === 'Binary') { + const binary: Binary = value; + // Check what kind of subtype we have + if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + (binary.position + 1 + 4 + 1 + 4) + ); + } else { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1) + ); + } + } else if (value._bsontype === 'Symbol') { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + ByteUtils.utf8ByteLength(value.value) + + 4 + + 1 + + 1 + ); + } else if (value._bsontype === 'DBRef') { + // Set up correct object for serialization + const ordered_values = Object.assign( + { + $ref: value.collection, + $id: value.oid + }, + value.fields + ); + + // Add db reference if it exists + if (value.db != null) { + ordered_values['$db'] = value.db; + } + + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined) + ); + } else if (value instanceof RegExp || isRegExp(value)) { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.source) + + 1 + + (value.global ? 1 : 0) + + (value.ignoreCase ? 1 : 0) + + (value.multiline ? 1 : 0) + + 1 + ); + } else if (value._bsontype === 'BSONRegExp') { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + ByteUtils.utf8ByteLength(value.pattern) + + 1 + + ByteUtils.utf8ByteLength(value.options) + + 1 + ); + } else { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) + + 1 + ); + } + case 'function': + if (serializeFunctions) { + return ( + (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + + 1 + + 4 + + ByteUtils.utf8ByteLength(value.toString()) + + 1 + ); + } + } + + return 0; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parser/deserializer.ts b/week-3/04-course-app-hard/node_modules/bson/src/parser/deserializer.ts new file mode 100644 index 000000000..165a529cf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parser/deserializer.ts @@ -0,0 +1,655 @@ +import { Binary, UUID } from '../binary'; +import type { Document } from '../bson'; +import { Code } from '../code'; +import * as constants from '../constants'; +import { DBRef, type DBRefLike, isDBRefLike } from '../db_ref'; +import { Decimal128 } from '../decimal128'; +import { Double } from '../double'; +import { BSONError } from '../error'; +import { Int32 } from '../int_32'; +import { Long } from '../long'; +import { MaxKey } from '../max_key'; +import { MinKey } from '../min_key'; +import { ObjectId } from '../objectid'; +import { BSONRegExp } from '../regexp'; +import { BSONSymbol } from '../symbol'; +import { Timestamp } from '../timestamp'; +import { ByteUtils } from '../utils/byte_utils'; +import { NumberUtils } from '../utils/number_utils'; + +/** @public */ +export interface DeserializeOptions { + /** + * when deserializing a Long return as a BigInt. + * @defaultValue `false` + */ + useBigInt64?: boolean; + /** + * when deserializing a Long will fit it into a Number if it's smaller than 53 bits. + * @defaultValue `true` + */ + promoteLongs?: boolean; + /** + * when deserializing a Binary will return it as a node.js Buffer instance. + * @defaultValue `false` + */ + promoteBuffers?: boolean; + /** + * when deserializing will promote BSON values to their Node.js closest equivalent types. + * @defaultValue `true` + */ + promoteValues?: boolean; + /** + * allow to specify if there what fields we wish to return as unserialized raw buffer. + * @defaultValue `null` + */ + fieldsAsRaw?: Document; + /** + * return BSON regular expressions as BSONRegExp instances. + * @defaultValue `false` + */ + bsonRegExp?: boolean; + /** + * allows the buffer to be larger than the parsed BSON object. + * @defaultValue `false` + */ + allowObjectSmallerThanBufferSize?: boolean; + /** + * Offset into buffer to begin reading document from + * @defaultValue `0` + */ + index?: number; + + raw?: boolean; + /** Allows for opt-out utf-8 validation for all keys or + * specified keys. Must be all true or all false. + * + * @example + * ```js + * // disables validation on all keys + * validation: { utf8: false } + * + * // enables validation only on specified keys a, b, and c + * validation: { utf8: { a: true, b: true, c: true } } + * + * // disables validation only on specified keys a, b + * validation: { utf8: { a: false, b: false } } + * ``` + */ + validation?: { utf8: boolean | Record | Record }; +} + +// Internal long versions +const JS_INT_MAX_LONG = Long.fromNumber(constants.JS_INT_MAX); +const JS_INT_MIN_LONG = Long.fromNumber(constants.JS_INT_MIN); + +export function internalDeserialize( + buffer: Uint8Array, + options: DeserializeOptions, + isArray?: boolean +): Document { + options = options == null ? {} : options; + const index = options && options.index ? options.index : 0; + // Read the document size + const size = NumberUtils.getInt32LE(buffer, index); + + if (size < 5) { + throw new BSONError(`bson size must be >= 5, is ${size}`); + } + + if (options.allowObjectSmallerThanBufferSize && buffer.length < size) { + throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`); + } + + if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) { + throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`); + } + + if (size + index > buffer.byteLength) { + throw new BSONError( + `(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})` + ); + } + + // Illegal end value + if (buffer[index + size - 1] !== 0) { + throw new BSONError( + "One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00" + ); + } + + // Start deserialization + return deserializeObject(buffer, index, options, isArray); +} + +const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/; + +function deserializeObject( + buffer: Uint8Array, + index: number, + options: DeserializeOptions, + isArray = false +) { + const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw']; + + // Return raw bson buffer instead of parsing it + const raw = options['raw'] == null ? false : options['raw']; + + // Return BSONRegExp objects instead of native regular expressions + const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false; + + // Controls the promotion of values vs wrapper classes + const promoteBuffers = options.promoteBuffers ?? false; + const promoteLongs = options.promoteLongs ?? true; + const promoteValues = options.promoteValues ?? true; + const useBigInt64 = options.useBigInt64 ?? false; + + if (useBigInt64 && !promoteValues) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + + if (useBigInt64 && !promoteLongs) { + throw new BSONError('Must either request bigint or Long for int64 deserialization'); + } + + // Ensures default validation option if none given + const validation = options.validation == null ? { utf8: true } : options.validation; + + // Shows if global utf-8 validation is enabled or disabled + let globalUTFValidation = true; + // Reflects utf-8 validation setting regardless of global or specific key validation + let validationSetting: boolean; + // Set of keys either to enable or disable validation on + let utf8KeysSet; + + // Check for boolean uniformity and empty validation option + const utf8ValidatedKeys = validation.utf8; + if (typeof utf8ValidatedKeys === 'boolean') { + validationSetting = utf8ValidatedKeys; + } else { + globalUTFValidation = false; + const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) { + return utf8ValidatedKeys[key]; + }); + if (utf8ValidationValues.length === 0) { + throw new BSONError('UTF-8 validation setting cannot be empty'); + } + if (typeof utf8ValidationValues[0] !== 'boolean') { + throw new BSONError('Invalid UTF-8 validation option, must specify boolean values'); + } + validationSetting = utf8ValidationValues[0]; + // Ensures boolean uniformity in utf-8 validation (all true or all false) + if (!utf8ValidationValues.every(item => item === validationSetting)) { + throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false'); + } + } + + // Add keys to set that will either be validated or not based on validationSetting + if (!globalUTFValidation) { + utf8KeysSet = new Set(); + + for (const key of Object.keys(utf8ValidatedKeys)) { + utf8KeysSet.add(key); + } + } + + // Set the start index + const startIndex = index; + + // Validate that we have at least 4 bytes of buffer + if (buffer.length < 5) throw new BSONError('corrupt bson message < 5 bytes long'); + + // Read the document size + const size = NumberUtils.getInt32LE(buffer, index); + index += 4; + + // Ensure buffer is valid size + if (size < 5 || size > buffer.length) throw new BSONError('corrupt bson message'); + + // Create holding object + const object: Document = isArray ? [] : {}; + // Used for arrays to skip having to perform utf8 decoding + let arrayIndex = 0; + const done = false; + + let isPossibleDBRef = isArray ? false : null; + + // While we have more left data left keep parsing + while (!done) { + // Read the type + const elementType = buffer[index++]; + + // If we get a zero it's the last byte, exit + if (elementType === 0) break; + + // Get the start search index + let i = index; + // Locate the end of the c string + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + + // If are at the end of the buffer there is a problem with the document + if (i >= buffer.byteLength) throw new BSONError('Bad BSON Document: illegal CString'); + + // Represents the key + const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i, false); + + // shouldValidateKey is true if the key should be validated, false otherwise + let shouldValidateKey = true; + if (globalUTFValidation || utf8KeysSet?.has(name)) { + shouldValidateKey = validationSetting; + } else { + shouldValidateKey = !validationSetting; + } + + if (isPossibleDBRef !== false && (name as string)[0] === '$') { + isPossibleDBRef = allowedDBRefKeys.test(name as string); + } + let value; + + index = i + 1; + + if (elementType === constants.BSON_DATA_STRING) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if ( + stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0 + ) { + throw new BSONError('bad string length in bson'); + } + value = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + index = index + stringSize; + } else if (elementType === constants.BSON_DATA_OID) { + const oid = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) oid[i] = buffer[index + i]; + value = new ObjectId(oid); + index = index + 12; + } else if (elementType === constants.BSON_DATA_INT && promoteValues === false) { + value = new Int32(NumberUtils.getInt32LE(buffer, index)); + index += 4; + } else if (elementType === constants.BSON_DATA_INT) { + value = NumberUtils.getInt32LE(buffer, index); + index += 4; + } else if (elementType === constants.BSON_DATA_NUMBER) { + value = NumberUtils.getFloat64LE(buffer, index); + index += 8; + if (promoteValues === false) value = new Double(value); + } else if (elementType === constants.BSON_DATA_DATE) { + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + + value = new Date(new Long(lowBits, highBits).toNumber()); + } else if (elementType === constants.BSON_DATA_BOOLEAN) { + if (buffer[index] !== 0 && buffer[index] !== 1) + throw new BSONError('illegal boolean type value'); + value = buffer[index++] === 1; + } else if (elementType === constants.BSON_DATA_OBJECT) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + + if (objectSize <= 0 || objectSize > buffer.length - index) + throw new BSONError('bad embedded document length in bson'); + + // We have a raw value + if (raw) { + value = buffer.slice(index, index + objectSize); + } else { + let objectOptions = options; + if (!globalUTFValidation) { + objectOptions = { ...options, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, objectOptions, false); + } + + index = index + objectSize; + } else if (elementType === constants.BSON_DATA_ARRAY) { + const _index = index; + const objectSize = NumberUtils.getInt32LE(buffer, index); + let arrayOptions: DeserializeOptions = options; + + // Stop index + const stopIndex = index + objectSize; + + // All elements of array to be returned as raw bson + if (fieldsAsRaw && fieldsAsRaw[name]) { + arrayOptions = { ...options, raw: true }; + } + + if (!globalUTFValidation) { + arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } }; + } + value = deserializeObject(buffer, _index, arrayOptions, true); + index = index + objectSize; + + if (buffer[index - 1] !== 0) throw new BSONError('invalid array terminator byte'); + if (index !== stopIndex) throw new BSONError('corrupted array bson'); + } else if (elementType === constants.BSON_DATA_UNDEFINED) { + value = undefined; + } else if (elementType === constants.BSON_DATA_NULL) { + value = null; + } else if (elementType === constants.BSON_DATA_LONG) { + if (useBigInt64) { + value = NumberUtils.getBigInt64LE(buffer, index); + index += 8; + } else { + // Unpack the low and high bits + const lowBits = NumberUtils.getInt32LE(buffer, index); + const highBits = NumberUtils.getInt32LE(buffer, index + 4); + index += 8; + + const long = new Long(lowBits, highBits); + // Promote the long if possible + if (promoteLongs && promoteValues === true) { + value = + long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG) + ? long.toNumber() + : long; + } else { + value = long; + } + } + } else if (elementType === constants.BSON_DATA_DECIMAL128) { + // Buffer to contain the decimal bytes + const bytes = ByteUtils.allocateUnsafe(16); + // Copy the next 16 bytes into the bytes buffer + for (let i = 0; i < 16; i++) bytes[i] = buffer[index + i]; + // Update index + index = index + 16; + // Assign the new Decimal128 value + value = new Decimal128(bytes); + } else if (elementType === constants.BSON_DATA_BINARY) { + let binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + const totalBinarySize = binarySize; + const subType = buffer[index++]; + + // Did we have a negative binary size, throw + if (binarySize < 0) throw new BSONError('Negative binary type element size found'); + + // Is the length longer than the document + if (binarySize > buffer.byteLength) + throw new BSONError('Binary type size larger than document size'); + + // Decode as raw Buffer object if options specifies it + if (buffer['slice'] != null) { + // If we have subtype 2 skip the 4 bytes for the size + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + + if (promoteBuffers && promoteValues) { + value = ByteUtils.toLocalBufferType(buffer.slice(index, index + binarySize)); + } else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === constants.BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } else { + // If we have subtype 2 skip the 4 bytes for the size + if (subType === Binary.SUBTYPE_BYTE_ARRAY) { + binarySize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if (binarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (binarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (binarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + } + + if (promoteBuffers && promoteValues) { + value = ByteUtils.allocateUnsafe(binarySize); + // Copy the data + for (i = 0; i < binarySize; i++) { + value[i] = buffer[index + i]; + } + } else { + value = new Binary(buffer.slice(index, index + binarySize), subType); + if (subType === constants.BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) { + value = value.toUUID(); + } + } + } + + // Update the index + index = index + binarySize; + } else if (elementType === constants.BSON_DATA_REGEXP && bsonRegExp === false) { + // Get the start search index + i = index; + // Locate the end of the c string + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + // If are at the end of the buffer there is a problem with the document + if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString'); + // Return the C string + const source = ByteUtils.toUTF8(buffer, index, i, false); + // Create the regexp + index = i + 1; + + // Get the start search index + i = index; + // Locate the end of the c string + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + // If are at the end of the buffer there is a problem with the document + if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString'); + // Return the C string + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + + // For each option add the corresponding one for javascript + const optionsArray = new Array(regExpOptions.length); + + // Parse options + for (i = 0; i < regExpOptions.length; i++) { + switch (regExpOptions[i]) { + case 'm': + optionsArray[i] = 'm'; + break; + case 's': + optionsArray[i] = 'g'; + break; + case 'i': + optionsArray[i] = 'i'; + break; + } + } + + value = new RegExp(source, optionsArray.join('')); + } else if (elementType === constants.BSON_DATA_REGEXP && bsonRegExp === true) { + // Get the start search index + i = index; + // Locate the end of the c string + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + // If are at the end of the buffer there is a problem with the document + if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString'); + // Return the C string + const source = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + + // Get the start search index + i = index; + // Locate the end of the c string + while (buffer[i] !== 0x00 && i < buffer.length) { + i++; + } + // If are at the end of the buffer there is a problem with the document + if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString'); + // Return the C string + const regExpOptions = ByteUtils.toUTF8(buffer, index, i, false); + index = i + 1; + + // Set the object + value = new BSONRegExp(source, regExpOptions); + } else if (elementType === constants.BSON_DATA_SYMBOL) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if ( + stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0 + ) { + throw new BSONError('bad string length in bson'); + } + const symbol = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + value = promoteValues ? symbol : new BSONSymbol(symbol); + index = index + stringSize; + } else if (elementType === constants.BSON_DATA_TIMESTAMP) { + value = new Timestamp({ + i: NumberUtils.getUint32LE(buffer, index), + t: NumberUtils.getUint32LE(buffer, index + 4) + }); + index += 8; + } else if (elementType === constants.BSON_DATA_MIN_KEY) { + value = new MinKey(); + } else if (elementType === constants.BSON_DATA_MAX_KEY) { + value = new MaxKey(); + } else if (elementType === constants.BSON_DATA_CODE) { + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + if ( + stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0 + ) { + throw new BSONError('bad string length in bson'); + } + const functionString = ByteUtils.toUTF8( + buffer, + index, + index + stringSize - 1, + shouldValidateKey + ); + + value = new Code(functionString); + + // Update parse index position + index = index + stringSize; + } else if (elementType === constants.BSON_DATA_CODE_W_SCOPE) { + const totalSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + + // Element cannot be shorter than totalSize + stringSize + documentSize + terminator + if (totalSize < 4 + 4 + 4 + 1) { + throw new BSONError('code_w_scope total size shorter minimum expected length'); + } + + // Get the code string size + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + // Check if we have a valid string + if ( + stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0 + ) { + throw new BSONError('bad string length in bson'); + } + + // Javascript function + const functionString = ByteUtils.toUTF8( + buffer, + index, + index + stringSize - 1, + shouldValidateKey + ); + // Update parse index position + index = index + stringSize; + // Parse the element + const _index = index; + // Decode the size of the object document + const objectSize = NumberUtils.getInt32LE(buffer, index); + // Decode the scope object + const scopeObject = deserializeObject(buffer, _index, options, false); + // Adjust the index + index = index + objectSize; + + // Check if field length is too short + if (totalSize < 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too short, truncating scope'); + } + + // Check if totalSize field is too long + if (totalSize > 4 + 4 + objectSize + stringSize) { + throw new BSONError('code_w_scope total size is too long, clips outer document'); + } + + value = new Code(functionString, scopeObject); + } else if (elementType === constants.BSON_DATA_DBPOINTER) { + // Get the code string size + const stringSize = NumberUtils.getInt32LE(buffer, index); + index += 4; + // Check if we have a valid string + if ( + stringSize <= 0 || + stringSize > buffer.length - index || + buffer[index + stringSize - 1] !== 0 + ) + throw new BSONError('bad string length in bson'); + // Namespace + const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1, shouldValidateKey); + // Update parse index position + index = index + stringSize; + + // Read the oid + const oidBuffer = ByteUtils.allocateUnsafe(12); + for (let i = 0; i < 12; i++) oidBuffer[i] = buffer[index + i]; + const oid = new ObjectId(oidBuffer); + + // Update the index + index = index + 12; + + // Upgrade to DBRef type + value = new DBRef(namespace, oid); + } else { + throw new BSONError( + `Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"` + ); + } + if (name === '__proto__') { + Object.defineProperty(object, name, { + value, + writable: true, + enumerable: true, + configurable: true + }); + } else { + object[name] = value; + } + } + + // Check if the deserialization was against a valid array/object + if (size !== index - startIndex) { + if (isArray) throw new BSONError('corrupt array bson'); + throw new BSONError('corrupt object bson'); + } + + // if we did not find "$ref", "$id", "$db", or found an extraneous $key, don't make a DBRef + if (!isPossibleDBRef) return object; + + if (isDBRefLike(object)) { + const copy = Object.assign({}, object) as Partial; + delete copy.$ref; + delete copy.$id; + delete copy.$db; + return new DBRef(object.$ref, object.$id, object.$db, copy); + } + + return object; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parser/on_demand/index.ts b/week-3/04-course-app-hard/node_modules/bson/src/parser/on_demand/index.ts new file mode 100644 index 000000000..f099c1152 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parser/on_demand/index.ts @@ -0,0 +1,32 @@ +import { ByteUtils } from '../../utils/byte_utils'; +import { NumberUtils } from '../../utils/number_utils'; +import { type BSONElement, parseToElements } from './parse_to_elements'; +/** + * @experimental + * @public + * + * A new set of BSON APIs that are currently experimental and not intended for production use. + */ +export type OnDemand = { + parseToElements: (this: void, bytes: Uint8Array, startOffset?: number) => Iterable; + // Types + BSONElement: BSONElement; + + // Utils + ByteUtils: ByteUtils; + NumberUtils: NumberUtils; +}; + +/** + * @experimental + * @public + */ +const onDemand: OnDemand = Object.create(null); + +onDemand.parseToElements = parseToElements; +onDemand.ByteUtils = ByteUtils; +onDemand.NumberUtils = NumberUtils; + +Object.freeze(onDemand); + +export { onDemand }; diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parser/on_demand/parse_to_elements.ts b/week-3/04-course-app-hard/node_modules/bson/src/parser/on_demand/parse_to_elements.ts new file mode 100644 index 000000000..f2c8e6972 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parser/on_demand/parse_to_elements.ts @@ -0,0 +1,188 @@ +import { BSONOffsetError } from '../../error'; +import { NumberUtils } from '../../utils/number_utils'; + +/** + * @internal + * + * @remarks + * - This enum is const so the code we produce will inline the numbers + * - `minKey` is set to 255 so unsigned comparisons succeed + * - Modify with caution, double check the bundle contains literals + */ +const enum BSONElementType { + double = 1, + string = 2, + object = 3, + array = 4, + binData = 5, + undefined = 6, + objectId = 7, + bool = 8, + date = 9, + null = 10, + regex = 11, + dbPointer = 12, + javascript = 13, + symbol = 14, + javascriptWithScope = 15, + int = 16, + timestamp = 17, + long = 18, + decimal = 19, + minKey = 255, + maxKey = 127 +} + +/** + * @public + * @experimental + */ +export type BSONElement = [ + type: number, + nameOffset: number, + nameLength: number, + offset: number, + length: number +]; + +function getSize(source: Uint8Array, offset: number) { + try { + return NumberUtils.getNonnegativeInt32LE(source, offset); + } catch (cause) { + throw new BSONOffsetError('BSON size cannot be negative', offset, { cause }); + } +} + +/** + * Searches for null terminator of a BSON element's value (Never the document null terminator) + * **Does not** bounds check since this should **ONLY** be used within parseToElements which has asserted that `bytes` ends with a `0x00`. + * So this will at most iterate to the document's terminator and error if that is the offset reached. + */ +function findNull(bytes: Uint8Array, offset: number): number { + let nullTerminatorOffset = offset; + + for (; bytes[nullTerminatorOffset] !== 0x00; nullTerminatorOffset++); + + if (nullTerminatorOffset === bytes.length - 1) { + // We reached the null terminator of the document, not a value's + throw new BSONOffsetError('Null terminator not found', offset); + } + + return nullTerminatorOffset; +} + +/** + * @public + * @experimental + */ +export function parseToElements( + bytes: Uint8Array, + startOffset: number | null = 0 +): Iterable { + startOffset ??= 0; + + if (bytes.length < 5) { + throw new BSONOffsetError( + `Input must be at least 5 bytes, got ${bytes.length} bytes`, + startOffset + ); + } + + const documentSize = getSize(bytes, startOffset); + + if (documentSize > bytes.length - startOffset) { + throw new BSONOffsetError( + `Parsed documentSize (${documentSize} bytes) does not match input length (${bytes.length} bytes)`, + startOffset + ); + } + + if (bytes[startOffset + documentSize - 1] !== 0x00) { + throw new BSONOffsetError('BSON documents must end in 0x00', startOffset + documentSize); + } + + const elements: BSONElement[] = []; + let offset = startOffset + 4; + + while (offset <= documentSize + startOffset) { + const type = bytes[offset]; + offset += 1; + + if (type === 0) { + if (offset - startOffset !== documentSize) { + throw new BSONOffsetError(`Invalid 0x00 type byte`, offset); + } + break; + } + + const nameOffset = offset; + const nameLength = findNull(bytes, offset) - nameOffset; + offset += nameLength + 1; + + let length: number; + + if ( + type === BSONElementType.double || + type === BSONElementType.long || + type === BSONElementType.date || + type === BSONElementType.timestamp + ) { + length = 8; + } else if (type === BSONElementType.int) { + length = 4; + } else if (type === BSONElementType.objectId) { + length = 12; + } else if (type === BSONElementType.decimal) { + length = 16; + } else if (type === BSONElementType.bool) { + length = 1; + } else if ( + type === BSONElementType.null || + type === BSONElementType.undefined || + type === BSONElementType.maxKey || + type === BSONElementType.minKey + ) { + length = 0; + } + // Needs a size calculation + else if (type === BSONElementType.regex) { + length = findNull(bytes, findNull(bytes, offset) + 1) + 1 - offset; + } else if ( + type === BSONElementType.object || + type === BSONElementType.array || + type === BSONElementType.javascriptWithScope + ) { + length = getSize(bytes, offset); + } else if ( + type === BSONElementType.string || + type === BSONElementType.binData || + type === BSONElementType.dbPointer || + type === BSONElementType.javascript || + type === BSONElementType.symbol + ) { + length = getSize(bytes, offset) + 4; + if (type === BSONElementType.binData) { + // binary subtype + length += 1; + } + if (type === BSONElementType.dbPointer) { + // dbPointer's objectId + length += 12; + } + } else { + throw new BSONOffsetError( + `Invalid 0x${type.toString(16).padStart(2, '0')} type byte`, + offset + ); + } + + if (length > documentSize) { + throw new BSONOffsetError('value reports length larger than document', offset); + } + + elements.push([type, nameOffset, nameLength, offset, length]); + offset += length; + } + + return elements; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parser/serializer.ts b/week-3/04-course-app-hard/node_modules/bson/src/parser/serializer.ts new file mode 100644 index 000000000..86490798e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parser/serializer.ts @@ -0,0 +1,942 @@ +import { Binary } from '../binary'; +import type { BSONSymbol, DBRef, Document, MaxKey } from '../bson'; +import type { Code } from '../code'; +import * as constants from '../constants'; +import type { DBRefLike } from '../db_ref'; +import type { Decimal128 } from '../decimal128'; +import type { Double } from '../double'; +import { BSONError, BSONVersionError } from '../error'; +import type { Int32 } from '../int_32'; +import { Long } from '../long'; +import type { MinKey } from '../min_key'; +import type { ObjectId } from '../objectid'; +import type { BSONRegExp } from '../regexp'; +import { ByteUtils } from '../utils/byte_utils'; +import { NumberUtils } from '../utils/number_utils'; +import { isAnyArrayBuffer, isDate, isMap, isRegExp, isUint8Array } from './utils'; + +/** @public */ +export interface SerializeOptions { + /** + * the serializer will check if keys are valid. + * @defaultValue `false` + */ + checkKeys?: boolean; + /** + * serialize the javascript functions + * @defaultValue `false` + */ + serializeFunctions?: boolean; + /** + * serialize will not emit undefined fields + * note that the driver sets this to `false` + * @defaultValue `true` + */ + ignoreUndefined?: boolean; + /** @internal Resize internal buffer */ + minInternalBufferSize?: number; + /** + * the index in the buffer where we wish to start serializing into + * @defaultValue `0` + */ + index?: number; +} + +const regexp = /\x00/; // eslint-disable-line no-control-regex +const ignoreKeys = new Set(['$db', '$ref', '$id', '$clusterTime']); + +/* + * isArray indicates if we are writing to a BSON array (type 0x04) + * which forces the "key" which really an array index as a string to be written as ascii + * This will catch any errors in index as a string generation + */ + +function serializeString(buffer: Uint8Array, key: string, value: string, index: number) { + // Encode String type + buffer[index++] = constants.BSON_DATA_STRING; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes + 1; + buffer[index - 1] = 0; + // Write the string + const size = ByteUtils.encodeUTF8Into(buffer, value, index + 4); + // Write the size of the string to buffer + NumberUtils.setInt32LE(buffer, index, size + 1); + // Update index + index = index + 4 + size; + // Write zero + buffer[index++] = 0; + return index; +} + +function serializeNumber(buffer: Uint8Array, key: string, value: number, index: number) { + const isNegativeZero = Object.is(value, -0); + + const type = + !isNegativeZero && + Number.isSafeInteger(value) && + value <= constants.BSON_INT32_MAX && + value >= constants.BSON_INT32_MIN + ? constants.BSON_DATA_INT + : constants.BSON_DATA_NUMBER; + + buffer[index++] = type; + + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + index = index + numberOfWrittenBytes; + buffer[index++] = 0x00; + + if (type === constants.BSON_DATA_INT) { + index += NumberUtils.setInt32LE(buffer, index, value); + } else { + index += NumberUtils.setFloat64LE(buffer, index, value); + } + + return index; +} + +function serializeBigInt(buffer: Uint8Array, key: string, value: bigint, index: number) { + buffer[index++] = constants.BSON_DATA_LONG; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index += numberOfWrittenBytes; + buffer[index++] = 0; + + index += NumberUtils.setBigInt64LE(buffer, index, value); + + return index; +} + +function serializeNull(buffer: Uint8Array, key: string, _: unknown, index: number) { + // Set long type + buffer[index++] = constants.BSON_DATA_NULL; + + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} + +function serializeBoolean(buffer: Uint8Array, key: string, value: boolean, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_BOOLEAN; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Encode the boolean value + buffer[index++] = value ? 1 : 0; + return index; +} + +function serializeDate(buffer: Uint8Array, key: string, value: Date, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_DATE; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + + // Write the date + const dateInMilis = Long.fromNumber(value.getTime()); + const lowBits = dateInMilis.getLowBits(); + const highBits = dateInMilis.getHighBits(); + // Encode low bits + index += NumberUtils.setInt32LE(buffer, index, lowBits); + // Encode high bits + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} + +function serializeRegExp(buffer: Uint8Array, key: string, value: RegExp, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_REGEXP; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + if (value.source && value.source.match(regexp) != null) { + throw new BSONError('value ' + value.source + ' must not contain null bytes'); + } + // Adjust the index + index = index + ByteUtils.encodeUTF8Into(buffer, value.source, index); + // Write zero + buffer[index++] = 0x00; + // Write the parameters + if (value.ignoreCase) buffer[index++] = 0x69; // i + if (value.global) buffer[index++] = 0x73; // s + if (value.multiline) buffer[index++] = 0x6d; // m + + // Add ending zero + buffer[index++] = 0x00; + return index; +} + +function serializeBSONRegExp(buffer: Uint8Array, key: string, value: BSONRegExp, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_REGEXP; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + + // Check the pattern for 0 bytes + if (value.pattern.match(regexp) != null) { + // The BSON spec doesn't allow keys with null bytes because keys are + // null-terminated. + throw new BSONError('pattern ' + value.pattern + ' must not contain null bytes'); + } + + // Adjust the index + index = index + ByteUtils.encodeUTF8Into(buffer, value.pattern, index); + // Write zero + buffer[index++] = 0x00; + // Write the options + const sortedOptions = value.options.split('').sort().join(''); + index = index + ByteUtils.encodeUTF8Into(buffer, sortedOptions, index); + // Add ending zero + buffer[index++] = 0x00; + return index; +} + +function serializeMinMax(buffer: Uint8Array, key: string, value: MinKey | MaxKey, index: number) { + // Write the type of either min or max key + if (value === null) { + buffer[index++] = constants.BSON_DATA_NULL; + } else if (value._bsontype === 'MinKey') { + buffer[index++] = constants.BSON_DATA_MIN_KEY; + } else { + buffer[index++] = constants.BSON_DATA_MAX_KEY; + } + + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + return index; +} + +function serializeObjectId(buffer: Uint8Array, key: string, value: ObjectId, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_OID; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + + index += value.serializeInto(buffer, index); + + // Adjust index + return index; +} + +function serializeBuffer(buffer: Uint8Array, key: string, value: Uint8Array, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_BINARY; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Get size of the buffer (current write point) + const size = value.length; + // Write the size of the string to buffer + index += NumberUtils.setInt32LE(buffer, index, size); + // Write the default subtype + buffer[index++] = constants.BSON_BINARY_SUBTYPE_DEFAULT; + // Copy the content form the binary field to the buffer + if (size <= 16) { + for (let i = 0; i < size; i++) buffer[index + i] = value[i]; + } else { + buffer.set(value, index); + } + // Adjust the index + index = index + size; + return index; +} + +function serializeObject( + buffer: Uint8Array, + key: string, + value: Document, + index: number, + checkKeys: boolean, + depth: number, + serializeFunctions: boolean, + ignoreUndefined: boolean, + path: Set +) { + if (path.has(value)) { + throw new BSONError('Cannot convert circular structure to BSON'); + } + + path.add(value); + + // Write the type + buffer[index++] = Array.isArray(value) ? constants.BSON_DATA_ARRAY : constants.BSON_DATA_OBJECT; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + const endIndex = serializeInto( + buffer, + value, + checkKeys, + index, + depth + 1, + serializeFunctions, + ignoreUndefined, + path + ); + + path.delete(value); + + return endIndex; +} + +function serializeDecimal128(buffer: Uint8Array, key: string, value: Decimal128, index: number) { + buffer[index++] = constants.BSON_DATA_DECIMAL128; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Write the data from the value + for (let i = 0; i < 16; i++) buffer[index + i] = value.bytes[i]; + return index + 16; +} + +function serializeLong(buffer: Uint8Array, key: string, value: Long, index: number) { + // Write the type + buffer[index++] = + value._bsontype === 'Long' ? constants.BSON_DATA_LONG : constants.BSON_DATA_TIMESTAMP; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Write the date + const lowBits = value.getLowBits(); + const highBits = value.getHighBits(); + // Encode low bits + index += NumberUtils.setInt32LE(buffer, index, lowBits); + // Encode high bits + index += NumberUtils.setInt32LE(buffer, index, highBits); + return index; +} + +function serializeInt32(buffer: Uint8Array, key: string, value: Int32 | number, index: number) { + value = value.valueOf(); + // Set int type 32 bits or less + buffer[index++] = constants.BSON_DATA_INT; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Write the int value + index += NumberUtils.setInt32LE(buffer, index, value); + return index; +} + +function serializeDouble(buffer: Uint8Array, key: string, value: Double, index: number) { + // Encode as double + buffer[index++] = constants.BSON_DATA_NUMBER; + + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + + // Write float + index += NumberUtils.setFloat64LE(buffer, index, value.value); + + return index; +} + +function serializeFunction(buffer: Uint8Array, key: string, value: Function, index: number) { + buffer[index++] = constants.BSON_DATA_CODE; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Function string + const functionString = value.toString(); + + // Write the string + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + // Write the size of the string to buffer + NumberUtils.setInt32LE(buffer, index, size); + // Update index + index = index + 4 + size - 1; + // Write zero + buffer[index++] = 0; + return index; +} + +function serializeCode( + buffer: Uint8Array, + key: string, + value: Code, + index: number, + checkKeys = false, + depth = 0, + serializeFunctions = false, + ignoreUndefined = true, + path: Set +) { + if (value.scope && typeof value.scope === 'object') { + // Write the type + buffer[index++] = constants.BSON_DATA_CODE_W_SCOPE; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + + // Starting index + let startIndex = index; + + // Serialize the function + // Get the function string + const functionString = value.code; + // Index adjustment + index = index + 4; + // Write string into buffer + const codeSize = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + // Write the size of the string to buffer + NumberUtils.setInt32LE(buffer, index, codeSize); + // Write end 0 + buffer[index + 4 + codeSize - 1] = 0; + // Write the + index = index + codeSize + 4; + + // Serialize the scope value + const endIndex = serializeInto( + buffer, + value.scope, + checkKeys, + index, + depth + 1, + serializeFunctions, + ignoreUndefined, + path + ); + index = endIndex - 1; + + // Writ the total + const totalSize = endIndex - startIndex; + + // Write the total size of the object + startIndex += NumberUtils.setInt32LE(buffer, startIndex, totalSize); + // Write trailing zero + buffer[index++] = 0; + } else { + buffer[index++] = constants.BSON_DATA_CODE; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Function string + const functionString = value.code.toString(); + // Write the string + const size = ByteUtils.encodeUTF8Into(buffer, functionString, index + 4) + 1; + // Write the size of the string to buffer + NumberUtils.setInt32LE(buffer, index, size); + // Update index + index = index + 4 + size - 1; + // Write zero + buffer[index++] = 0; + } + + return index; +} + +function serializeBinary(buffer: Uint8Array, key: string, value: Binary, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_BINARY; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Extract the buffer + const data = value.buffer; + // Calculate size + let size = value.position; + // Add the deprecated 02 type 4 bytes of size to total + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) size = size + 4; + // Write the size of the string to buffer + index += NumberUtils.setInt32LE(buffer, index, size); + // Write the subtype to the buffer + buffer[index++] = value.sub_type; + + // If we have binary type 2 the 4 first bytes are the size + if (value.sub_type === Binary.SUBTYPE_BYTE_ARRAY) { + size = size - 4; + index += NumberUtils.setInt32LE(buffer, index, size); + } + + if (size <= 16) { + for (let i = 0; i < size; i++) buffer[index + i] = data[i]; + } else { + buffer.set(data, index); + } + // Adjust the index + index = index + value.position; + return index; +} + +function serializeSymbol(buffer: Uint8Array, key: string, value: BSONSymbol, index: number) { + // Write the type + buffer[index++] = constants.BSON_DATA_SYMBOL; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + // Write the string + const size = ByteUtils.encodeUTF8Into(buffer, value.value, index + 4) + 1; + // Write the size of the string to buffer + NumberUtils.setInt32LE(buffer, index, size); + // Update index + index = index + 4 + size - 1; + // Write zero + buffer[index++] = 0; + return index; +} + +function serializeDBRef( + buffer: Uint8Array, + key: string, + value: DBRef, + index: number, + depth: number, + serializeFunctions: boolean, + path: Set +) { + // Write the type + buffer[index++] = constants.BSON_DATA_OBJECT; + // Number of written bytes + const numberOfWrittenBytes = ByteUtils.encodeUTF8Into(buffer, key, index); + + // Encode the name + index = index + numberOfWrittenBytes; + buffer[index++] = 0; + + let startIndex = index; + let output: DBRefLike = { + $ref: value.collection || value.namespace, // "namespace" was what library 1.x called "collection" + $id: value.oid + }; + + if (value.db != null) { + output.$db = value.db; + } + + output = Object.assign(output, value.fields); + const endIndex = serializeInto( + buffer, + output, + false, + index, + depth + 1, + serializeFunctions, + true, + path + ); + + // Calculate object size + const size = endIndex - startIndex; + // Write the size + startIndex += NumberUtils.setInt32LE(buffer, index, size); + // Set index + return endIndex; +} + +export function serializeInto( + buffer: Uint8Array, + object: Document, + checkKeys: boolean, + startingIndex: number, + depth: number, + serializeFunctions: boolean, + ignoreUndefined: boolean, + path: Set | null +): number { + if (path == null) { + // We are at the root input + if (object == null) { + // ONLY the root should turn into an empty document + // BSON Empty document has a size of 5 (LE) + buffer[0] = 0x05; + buffer[1] = 0x00; + buffer[2] = 0x00; + buffer[3] = 0x00; + // All documents end with null terminator + buffer[4] = 0x00; + return 5; + } + + if (Array.isArray(object)) { + throw new BSONError('serialize does not support an array as the root input'); + } + if (typeof object !== 'object') { + throw new BSONError('serialize does not support non-object as the root input'); + } else if ('_bsontype' in object && typeof object._bsontype === 'string') { + throw new BSONError(`BSON types cannot be serialized as a document`); + } else if ( + isDate(object) || + isRegExp(object) || + isUint8Array(object) || + isAnyArrayBuffer(object) + ) { + throw new BSONError(`date, regexp, typedarray, and arraybuffer cannot be BSON documents`); + } + + path = new Set(); + } + + // Push the object to the path + path.add(object); + + // Start place to serialize into + let index = startingIndex + 4; + + // Special case isArray + if (Array.isArray(object)) { + // Get object keys + for (let i = 0; i < object.length; i++) { + const key = `${i}`; + let value = object[i]; + + // Is there an override value + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + + if (typeof value === 'string') { + index = serializeString(buffer, key, value, index); + } else if (typeof value === 'number') { + index = serializeNumber(buffer, key, value, index); + } else if (typeof value === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } else if (typeof value === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } else if (value === undefined) { + index = serializeNull(buffer, key, value, index); + } else if (value === null) { + index = serializeNull(buffer, key, value, index); + } else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } else if (typeof value === 'object' && value._bsontype == null) { + index = serializeObject( + buffer, + key, + value, + index, + checkKeys, + depth, + serializeFunctions, + ignoreUndefined, + path + ); + } else if ( + typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== constants.BSON_MAJOR_VERSION + ) { + throw new BSONVersionError(); + } else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } else if (value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } else if (value._bsontype === 'Code') { + index = serializeCode( + buffer, + key, + value, + index, + checkKeys, + depth, + serializeFunctions, + ignoreUndefined, + path + ); + } else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } else if (object instanceof Map || isMap(object)) { + const iterator = object.entries(); + let done = false; + + while (!done) { + // Unpack the next entry + const entry = iterator.next(); + done = !!entry.done; + // Are we done, then skip and terminate + if (done) continue; + + // Get the entry values + const key = entry.value[0]; + let value = entry.value[1]; + + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + + // Check the type of the value + const type = typeof value; + + // Check the key and throw error if it's illegal + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + // The BSON spec doesn't allow keys with null bytes because keys are + // null-terminated. + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } else if (value === null || (value === undefined && ignoreUndefined === false)) { + index = serializeNull(buffer, key, value, index); + } else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } else if (type === 'object' && value._bsontype == null) { + index = serializeObject( + buffer, + key, + value, + index, + checkKeys, + depth, + serializeFunctions, + ignoreUndefined, + path + ); + } else if ( + typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== constants.BSON_MAJOR_VERSION + ) { + throw new BSONVersionError(); + } else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } else if (value._bsontype === 'Code') { + index = serializeCode( + buffer, + key, + value, + index, + checkKeys, + depth, + serializeFunctions, + ignoreUndefined, + path + ); + } else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } else { + if (typeof object?.toBSON === 'function') { + // Provided a custom serialization method + object = object.toBSON(); + if (object != null && typeof object !== 'object') { + throw new BSONError('toBSON function did not return an object'); + } + } + + // Iterate over all the keys + for (const key of Object.keys(object)) { + let value = object[key]; + // Is there an override value + if (typeof value?.toBSON === 'function') { + value = value.toBSON(); + } + + // Check the type of the value + const type = typeof value; + + // Check the key and throw error if it's illegal + if (typeof key === 'string' && !ignoreKeys.has(key)) { + if (key.match(regexp) != null) { + // The BSON spec doesn't allow keys with null bytes because keys are + // null-terminated. + throw new BSONError('key ' + key + ' must not contain null bytes'); + } + + if (checkKeys) { + if ('$' === key[0]) { + throw new BSONError('key ' + key + " must not start with '$'"); + } else if (key.includes('.')) { + throw new BSONError('key ' + key + " must not contain '.'"); + } + } + } + + if (type === 'string') { + index = serializeString(buffer, key, value, index); + } else if (type === 'number') { + index = serializeNumber(buffer, key, value, index); + } else if (type === 'bigint') { + index = serializeBigInt(buffer, key, value, index); + } else if (type === 'boolean') { + index = serializeBoolean(buffer, key, value, index); + } else if (value instanceof Date || isDate(value)) { + index = serializeDate(buffer, key, value, index); + } else if (value === undefined) { + if (ignoreUndefined === false) index = serializeNull(buffer, key, value, index); + } else if (value === null) { + index = serializeNull(buffer, key, value, index); + } else if (isUint8Array(value)) { + index = serializeBuffer(buffer, key, value, index); + } else if (value instanceof RegExp || isRegExp(value)) { + index = serializeRegExp(buffer, key, value, index); + } else if (type === 'object' && value._bsontype == null) { + index = serializeObject( + buffer, + key, + value, + index, + checkKeys, + depth, + serializeFunctions, + ignoreUndefined, + path + ); + } else if ( + typeof value === 'object' && + value[Symbol.for('@@mdb.bson.version')] !== constants.BSON_MAJOR_VERSION + ) { + throw new BSONVersionError(); + } else if (value._bsontype === 'ObjectId') { + index = serializeObjectId(buffer, key, value, index); + } else if (type === 'object' && value._bsontype === 'Decimal128') { + index = serializeDecimal128(buffer, key, value, index); + } else if (value._bsontype === 'Long' || value._bsontype === 'Timestamp') { + index = serializeLong(buffer, key, value, index); + } else if (value._bsontype === 'Double') { + index = serializeDouble(buffer, key, value, index); + } else if (value._bsontype === 'Code') { + index = serializeCode( + buffer, + key, + value, + index, + checkKeys, + depth, + serializeFunctions, + ignoreUndefined, + path + ); + } else if (typeof value === 'function' && serializeFunctions) { + index = serializeFunction(buffer, key, value, index); + } else if (value._bsontype === 'Binary') { + index = serializeBinary(buffer, key, value, index); + } else if (value._bsontype === 'BSONSymbol') { + index = serializeSymbol(buffer, key, value, index); + } else if (value._bsontype === 'DBRef') { + index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, path); + } else if (value._bsontype === 'BSONRegExp') { + index = serializeBSONRegExp(buffer, key, value, index); + } else if (value._bsontype === 'Int32') { + index = serializeInt32(buffer, key, value, index); + } else if (value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') { + index = serializeMinMax(buffer, key, value, index); + } else if (typeof value._bsontype !== 'undefined') { + throw new BSONError(`Unrecognized or invalid _bsontype: ${String(value._bsontype)}`); + } + } + } + + // Remove the path + path.delete(object); + + // Final padding byte for object + buffer[index++] = 0x00; + + // Final size + const size = index - startingIndex; + // Write the size of the object + startingIndex += NumberUtils.setInt32LE(buffer, startingIndex, size); + return index; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/parser/utils.ts b/week-3/04-course-app-hard/node_modules/bson/src/parser/utils.ts new file mode 100644 index 000000000..0b27249ee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/parser/utils.ts @@ -0,0 +1,56 @@ +export function isAnyArrayBuffer(value: unknown): value is ArrayBuffer { + return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes( + Object.prototype.toString.call(value) + ); +} + +export function isUint8Array(value: unknown): value is Uint8Array { + return Object.prototype.toString.call(value) === '[object Uint8Array]'; +} + +export function isBigInt64Array(value: unknown): value is BigInt64Array { + return Object.prototype.toString.call(value) === '[object BigInt64Array]'; +} + +export function isBigUInt64Array(value: unknown): value is BigUint64Array { + return Object.prototype.toString.call(value) === '[object BigUint64Array]'; +} + +export function isRegExp(d: unknown): d is RegExp { + return Object.prototype.toString.call(d) === '[object RegExp]'; +} + +export function isMap(d: unknown): d is Map { + return Object.prototype.toString.call(d) === '[object Map]'; +} + +export function isDate(d: unknown): d is Date { + return Object.prototype.toString.call(d) === '[object Date]'; +} + +export type InspectFn = (x: unknown, options?: unknown) => string; +export function defaultInspect(x: unknown, _options?: unknown): string { + return JSON.stringify(x, (k: string, v: unknown) => { + if (typeof v === 'bigint') { + return { $numberLong: `${v}` }; + } else if (isMap(v)) { + return Object.fromEntries(v); + } + return v; + }); +} + +/** @internal */ +type StylizeFunction = (x: string, style: string) => string; +/** @internal */ +export function getStylizeFunction(options?: unknown): StylizeFunction | undefined { + const stylizeExists = + options != null && + typeof options === 'object' && + 'stylize' in options && + typeof options.stylize === 'function'; + + if (stylizeExists) { + return options.stylize as StylizeFunction; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/regexp.ts b/week-3/04-course-app-hard/node_modules/bson/src/regexp.ts new file mode 100644 index 000000000..e401a2909 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/regexp.ts @@ -0,0 +1,114 @@ +import { BSONValue } from './bson_value'; +import { BSONError } from './error'; +import type { EJSONOptions } from './extended_json'; +import { type InspectFn, defaultInspect, getStylizeFunction } from './parser/utils'; + +function alphabetize(str: string): string { + return str.split('').sort().join(''); +} + +/** @public */ +export interface BSONRegExpExtendedLegacy { + $regex: string | BSONRegExp; + $options: string; +} + +/** @public */ +export interface BSONRegExpExtended { + $regularExpression: { + pattern: string; + options: string; + }; +} + +/** + * A class representation of the BSON RegExp type. + * @public + * @category BSONType + */ +export class BSONRegExp extends BSONValue { + get _bsontype(): 'BSONRegExp' { + return 'BSONRegExp'; + } + + pattern!: string; + options!: string; + /** + * @param pattern - The regular expression pattern to match + * @param options - The regular expression options + */ + constructor(pattern: string, options?: string) { + super(); + this.pattern = pattern; + this.options = alphabetize(options ?? ''); + + if (this.pattern.indexOf('\x00') !== -1) { + throw new BSONError( + `BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}` + ); + } + if (this.options.indexOf('\x00') !== -1) { + throw new BSONError( + `BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}` + ); + } + + // Validate options + for (let i = 0; i < this.options.length; i++) { + if ( + !( + this.options[i] === 'i' || + this.options[i] === 'm' || + this.options[i] === 'x' || + this.options[i] === 'l' || + this.options[i] === 's' || + this.options[i] === 'u' + ) + ) { + throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`); + } + } + } + + static parseOptions(options?: string): string { + return options ? options.split('').sort().join('') : ''; + } + + /** @internal */ + toExtendedJSON(options?: EJSONOptions): BSONRegExpExtendedLegacy | BSONRegExpExtended { + options = options || {}; + if (options.legacy) { + return { $regex: this.pattern, $options: this.options }; + } + return { $regularExpression: { pattern: this.pattern, options: this.options } }; + } + + /** @internal */ + static fromExtendedJSON(doc: BSONRegExpExtendedLegacy | BSONRegExpExtended): BSONRegExp { + if ('$regex' in doc) { + if (typeof doc.$regex !== 'string') { + // This is for $regex query operators that have extended json values. + if (doc.$regex._bsontype === 'BSONRegExp') { + return doc as unknown as BSONRegExp; + } + } else { + return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options)); + } + } + if ('$regularExpression' in doc) { + return new BSONRegExp( + doc.$regularExpression.pattern, + BSONRegExp.parseOptions(doc.$regularExpression.options) + ); + } + throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + const stylize = getStylizeFunction(options) ?? (v => v); + inspect ??= defaultInspect; + const pattern = stylize(inspect(this.pattern), 'regexp'); + const flags = stylize(inspect(this.options), 'regexp'); + return `new BSONRegExp(${pattern}, ${flags})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/symbol.ts b/week-3/04-course-app-hard/node_modules/bson/src/symbol.ts new file mode 100644 index 000000000..6835ab959 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/symbol.ts @@ -0,0 +1,55 @@ +import { BSONValue } from './bson_value'; +import { type InspectFn, defaultInspect } from './parser/utils'; + +/** @public */ +export interface BSONSymbolExtended { + $symbol: string; +} + +/** + * A class representation of the BSON Symbol type. + * @public + * @category BSONType + */ +export class BSONSymbol extends BSONValue { + get _bsontype(): 'BSONSymbol' { + return 'BSONSymbol'; + } + + value!: string; + /** + * @param value - the string representing the symbol. + */ + constructor(value: string) { + super(); + this.value = value; + } + + /** Access the wrapped string value. */ + valueOf(): string { + return this.value; + } + + toString(): string { + return this.value; + } + + toJSON(): string { + return this.value; + } + + /** @internal */ + toExtendedJSON(): BSONSymbolExtended { + return { $symbol: this.value }; + } + + /** @internal */ + static fromExtendedJSON(doc: BSONSymbolExtended): BSONSymbol { + return new BSONSymbol(doc.$symbol); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + return `new BSONSymbol(${inspect(this.value, options)})`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/timestamp.ts b/week-3/04-course-app-hard/node_modules/bson/src/timestamp.ts new file mode 100644 index 000000000..9d1e205ce --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/timestamp.ts @@ -0,0 +1,151 @@ +import { BSONError } from './error'; +import type { Int32 } from './int_32'; +import { Long } from './long'; +import { type InspectFn, defaultInspect } from './parser/utils'; + +/** @public */ +export type TimestampOverrides = '_bsontype' | 'toExtendedJSON' | 'fromExtendedJSON' | 'inspect'; +/** @public */ +export type LongWithoutOverrides = new ( + low: unknown, + high?: number | boolean, + unsigned?: boolean +) => { + [P in Exclude]: Long[P]; +}; +/** @public */ +export const LongWithoutOverridesClass: LongWithoutOverrides = + Long as unknown as LongWithoutOverrides; + +/** @public */ +export interface TimestampExtended { + $timestamp: { + t: number; + i: number; + }; +} + +/** + * @public + * @category BSONType + */ +export class Timestamp extends LongWithoutOverridesClass { + get _bsontype(): 'Timestamp' { + return 'Timestamp'; + } + + static readonly MAX_VALUE = Long.MAX_UNSIGNED_VALUE; + + /** + * @param int - A 64-bit bigint representing the Timestamp. + */ + constructor(int: bigint); + /** + * @param long - A 64-bit Long representing the Timestamp. + */ + constructor(long: Long); + /** + * @param value - A pair of two values indicating timestamp and increment. + */ + constructor(value: { t: number; i: number }); + constructor(low?: bigint | Long | { t: number | Int32; i: number | Int32 }) { + if (low == null) { + super(0, 0, true); + } else if (typeof low === 'bigint') { + super(low, true); + } else if (Long.isLong(low)) { + super(low.low, low.high, true); + } else if (typeof low === 'object' && 't' in low && 'i' in low) { + if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide t as a number'); + } + if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) { + throw new BSONError('Timestamp constructed from { t, i } must provide i as a number'); + } + const t = Number(low.t); + const i = Number(low.i); + if (t < 0 || Number.isNaN(t)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive t'); + } + if (i < 0 || Number.isNaN(i)) { + throw new BSONError('Timestamp constructed from { t, i } must provide a positive i'); + } + if (t > 0xffff_ffff) { + throw new BSONError( + 'Timestamp constructed from { t, i } must provide t equal or less than uint32 max' + ); + } + if (i > 0xffff_ffff) { + throw new BSONError( + 'Timestamp constructed from { t, i } must provide i equal or less than uint32 max' + ); + } + + super(i, t, true); + } else { + throw new BSONError( + 'A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }' + ); + } + } + + toJSON(): { $timestamp: string } { + return { + $timestamp: this.toString() + }; + } + + /** Returns a Timestamp represented by the given (32-bit) integer value. */ + static fromInt(value: number): Timestamp { + return new Timestamp(Long.fromInt(value, true)); + } + + /** Returns a Timestamp representing the given number value, provided that it is a finite number. Otherwise, zero is returned. */ + static fromNumber(value: number): Timestamp { + return new Timestamp(Long.fromNumber(value, true)); + } + + /** + * Returns a Timestamp for the given high and low bits. Each is assumed to use 32 bits. + * + * @param lowBits - the low 32-bits. + * @param highBits - the high 32-bits. + */ + static fromBits(lowBits: number, highBits: number): Timestamp { + return new Timestamp({ i: lowBits, t: highBits }); + } + + /** + * Returns a Timestamp from the given string, optionally using the given radix. + * + * @param str - the textual representation of the Timestamp. + * @param optRadix - the radix in which the text is written. + */ + static fromString(str: string, optRadix: number): Timestamp { + return new Timestamp(Long.fromString(str, true, optRadix)); + } + + /** @internal */ + toExtendedJSON(): TimestampExtended { + return { $timestamp: { t: this.high >>> 0, i: this.low >>> 0 } }; + } + + /** @internal */ + static fromExtendedJSON(doc: TimestampExtended): Timestamp { + // The Long check is necessary because extended JSON has different behavior given the size of the input number + const i = Long.isLong(doc.$timestamp.i) + ? doc.$timestamp.i.getLowBitsUnsigned() // Need to fetch the least significant 32 bits + : doc.$timestamp.i; + const t = Long.isLong(doc.$timestamp.t) + ? doc.$timestamp.t.getLowBitsUnsigned() // Need to fetch the least significant 32 bits + : doc.$timestamp.t; + return new Timestamp({ t, i }); + } + + inspect(depth?: number, options?: unknown, inspect?: InspectFn): string { + inspect ??= defaultInspect; + const t = inspect(this.high >>> 0, options); + const i = inspect(this.low >>> 0, options); + return `new Timestamp({ t: ${t}, i: ${i} })`; + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/utils/byte_utils.ts b/week-3/04-course-app-hard/node_modules/bson/src/utils/byte_utils.ts new file mode 100644 index 000000000..f3da53fda --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/utils/byte_utils.ts @@ -0,0 +1,61 @@ +import { nodeJsByteUtils } from './node_byte_utils'; +import { webByteUtils } from './web_byte_utils'; + +/** + * @public + * @experimental + * + * A collection of functions that help work with data in a Uint8Array. + * ByteUtils is configured at load time to use Node.js or Web based APIs for the internal implementations. + */ +export type ByteUtils = { + /** Transforms the input to an instance of Buffer if running on node, otherwise Uint8Array */ + toLocalBufferType: (buffer: Uint8Array | ArrayBufferView | ArrayBuffer) => Uint8Array; + /** Create empty space of size */ + allocate: (size: number) => Uint8Array; + /** Create empty space of size, use pooled memory when available */ + allocateUnsafe: (size: number) => Uint8Array; + /** Check if two Uint8Arrays are deep equal */ + equals: (a: Uint8Array, b: Uint8Array) => boolean; + /** Check if two Uint8Arrays are deep equal */ + fromNumberArray: (array: number[]) => Uint8Array; + /** Create a Uint8Array from a base64 string */ + fromBase64: (base64: string) => Uint8Array; + /** Create a base64 string from bytes */ + toBase64: (buffer: Uint8Array) => string; + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + fromISO88591: (codePoints: string) => Uint8Array; + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + toISO88591: (buffer: Uint8Array) => string; + /** Create a Uint8Array from a hex string */ + fromHex: (hex: string) => Uint8Array; + /** Create a lowercase hex string from bytes */ + toHex: (buffer: Uint8Array) => string; + /** Create a string from utf8 code units, fatal=true will throw an error if UTF-8 bytes are invalid, fatal=false will insert replacement characters */ + toUTF8: (buffer: Uint8Array, start: number, end: number, fatal: boolean) => string; + /** Get the utf8 code unit count from a string if it were to be transformed to utf8 */ + utf8ByteLength: (input: string) => number; + /** Encode UTF8 bytes generated from `source` string into `destination` at byteOffset. Returns the number of bytes encoded. */ + encodeUTF8Into: (destination: Uint8Array, source: string, byteOffset: number) => number; + /** Generate a Uint8Array filled with random bytes with byteLength */ + randomBytes: (byteLength: number) => Uint8Array; +}; + +declare const Buffer: { new (): unknown; prototype?: { _isBuffer?: boolean } } | undefined; + +/** + * Check that a global Buffer exists that is a function and + * does not have a '_isBuffer' property defined on the prototype + * (this is to prevent using the npm buffer) + */ +const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true; + +/** + * This is the only ByteUtils that should be used across the rest of the BSON library. + * + * The type annotation is important here, it asserts that each of the platform specific + * utils implementations are compatible with the common one. + * + * @internal + */ +export const ByteUtils: ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils; diff --git a/week-3/04-course-app-hard/node_modules/bson/src/utils/latin.ts b/week-3/04-course-app-hard/node_modules/bson/src/utils/latin.ts new file mode 100644 index 000000000..5dd5c91f6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/utils/latin.ts @@ -0,0 +1,104 @@ +/** + * This function is an optimization for small basic latin strings. + * @internal + * @remarks + * ### Important characteristics: + * - If the uint8array or distance between start and end is 0 this function returns an empty string + * - If the byteLength of the string is 1, 2, or 3 we invoke String.fromCharCode and manually offset into the buffer + * - If the byteLength of the string is less than or equal to 20 an array of bytes is built and `String.fromCharCode.apply` is called with the result + * - If any byte exceeds 128 this function returns null + * + * @param uint8array - A sequence of bytes that may contain basic latin characters + * @param start - The start index from which to search the uint8array + * @param end - The index to stop searching the uint8array + * @returns string if all bytes are within the basic latin range, otherwise null + */ +export function tryReadBasicLatin( + uint8array: Uint8Array, + start: number, + end: number +): string | null { + if (uint8array.length === 0) { + return ''; + } + + const stringByteLength = end - start; + if (stringByteLength === 0) { + return ''; + } + + if (stringByteLength > 20) { + return null; + } + + if (stringByteLength === 1 && uint8array[start] < 128) { + return String.fromCharCode(uint8array[start]); + } + + if (stringByteLength === 2 && uint8array[start] < 128 && uint8array[start + 1] < 128) { + return String.fromCharCode(uint8array[start]) + String.fromCharCode(uint8array[start + 1]); + } + + if ( + stringByteLength === 3 && + uint8array[start] < 128 && + uint8array[start + 1] < 128 && + uint8array[start + 2] < 128 + ) { + return ( + String.fromCharCode(uint8array[start]) + + String.fromCharCode(uint8array[start + 1]) + + String.fromCharCode(uint8array[start + 2]) + ); + } + + const latinBytes = []; + for (let i = start; i < end; i++) { + const byte = uint8array[i]; + if (byte > 127) { + return null; + } + latinBytes.push(byte); + } + + return String.fromCharCode(...latinBytes); +} + +/** + * This function is an optimization for writing small basic latin strings. + * @internal + * @remarks + * ### Important characteristics: + * - If the string length is 0 return 0, do not perform any work + * - If a string is longer than 25 code units return null + * - If any code unit exceeds 128 this function returns null + * + * @param destination - The uint8array to serialize the string to + * @param source - The string to turn into UTF-8 bytes if it fits in the basic latin range + * @param offset - The position in the destination to begin writing bytes to + * @returns the number of bytes written to destination if all code units are below 128, otherwise null + */ +export function tryWriteBasicLatin( + destination: Uint8Array, + source: string, + offset: number +): number | null { + if (source.length === 0) return 0; + + if (source.length > 25) return null; + + if (destination.length - offset < source.length) return null; + + for ( + let charOffset = 0, destinationOffset = offset; + charOffset < source.length; + charOffset++, destinationOffset++ + ) { + const char = source.charCodeAt(charOffset); + if (char > 127) return null; + + destination[destinationOffset] = char; + } + + return source.length; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/utils/node_byte_utils.ts b/week-3/04-course-app-hard/node_modules/bson/src/utils/node_byte_utils.ts new file mode 100644 index 000000000..ca1482ca0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/utils/node_byte_utils.ts @@ -0,0 +1,163 @@ +import { BSONError } from '../error'; +import { parseUtf8 } from '../parse_utf8'; +import { tryReadBasicLatin, tryWriteBasicLatin } from './latin'; + +type NodeJsEncoding = 'base64' | 'hex' | 'utf8' | 'binary'; +type NodeJsBuffer = ArrayBufferView & + Uint8Array & { + write(string: string, offset: number, length: undefined, encoding: 'utf8'): number; + copy(target: Uint8Array, targetStart: number, sourceStart: number, sourceEnd: number): number; + toString: (this: Uint8Array, encoding: NodeJsEncoding, start?: number, end?: number) => string; + equals: (this: Uint8Array, other: Uint8Array) => boolean; + }; +type NodeJsBufferConstructor = Omit & { + alloc: (size: number) => NodeJsBuffer; + allocUnsafe: (size: number) => NodeJsBuffer; + from(array: number[]): NodeJsBuffer; + from(array: Uint8Array): NodeJsBuffer; + from(array: ArrayBuffer): NodeJsBuffer; + from(array: ArrayBuffer, byteOffset: number, byteLength: number): NodeJsBuffer; + from(base64: string, encoding: NodeJsEncoding): NodeJsBuffer; + byteLength(input: string, encoding: 'utf8'): number; + isBuffer(value: unknown): value is NodeJsBuffer; +}; + +// This can be nullish, but we gate the nodejs functions on being exported whether or not this exists +// Node.js global +declare const Buffer: NodeJsBufferConstructor; +declare const require: (mod: 'crypto') => { randomBytes: (byteLength: number) => Uint8Array }; + +/** @internal */ +export function nodejsMathRandomBytes(byteLength: number) { + return nodeJsByteUtils.fromNumberArray( + Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)) + ); +} + +/** + * @internal + * WARNING: REQUIRE WILL BE REWRITTEN + * + * This code is carefully used by require_rewriter.mjs any modifications must be reflected in the plugin. + * + * @remarks + * "crypto" is the only dependency BSON needs. This presents a problem for creating a bundle of the BSON library + * in an es module format that can be used both on the browser and in Node.js. In Node.js when BSON is imported as + * an es module, there will be no global require function defined, making the code below fallback to the much less desireable math.random bytes. + * In order to make our es module bundle work as expected on Node.js we need to change this `require()` to a dynamic import, and the dynamic + * import must be top-level awaited since es modules are async. So we rely on a custom rollup plugin to seek out the following lines of code + * and replace `require` with `await import` and the IIFE line (`nodejsRandomBytes = (() => { ... })()`) with `nodejsRandomBytes = await (async () => { ... })()` + * when generating an es module bundle. + */ +const nodejsRandomBytes: (byteLength: number) => Uint8Array = (() => { + try { + return require('crypto').randomBytes; + } catch { + return nodejsMathRandomBytes; + } +})(); + +/** @internal */ +export const nodeJsByteUtils = { + toLocalBufferType(potentialBuffer: Uint8Array | NodeJsBuffer | ArrayBuffer): NodeJsBuffer { + if (Buffer.isBuffer(potentialBuffer)) { + return potentialBuffer; + } + + if (ArrayBuffer.isView(potentialBuffer)) { + return Buffer.from( + potentialBuffer.buffer, + potentialBuffer.byteOffset, + potentialBuffer.byteLength + ); + } + + const stringTag = + potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer); + if ( + stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]' + ) { + return Buffer.from(potentialBuffer); + } + + throw new BSONError(`Cannot create Buffer from ${String(potentialBuffer)}`); + }, + + allocate(size: number): NodeJsBuffer { + return Buffer.alloc(size); + }, + + allocateUnsafe(size: number): NodeJsBuffer { + return Buffer.allocUnsafe(size); + }, + + equals(a: Uint8Array, b: Uint8Array): boolean { + return nodeJsByteUtils.toLocalBufferType(a).equals(b); + }, + + fromNumberArray(array: number[]): NodeJsBuffer { + return Buffer.from(array); + }, + + fromBase64(base64: string): NodeJsBuffer { + return Buffer.from(base64, 'base64'); + }, + + toBase64(buffer: Uint8Array): string { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64'); + }, + + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + fromISO88591(codePoints: string): NodeJsBuffer { + return Buffer.from(codePoints, 'binary'); + }, + + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + toISO88591(buffer: Uint8Array): string { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary'); + }, + + fromHex(hex: string): NodeJsBuffer { + return Buffer.from(hex, 'hex'); + }, + + toHex(buffer: Uint8Array): string { + return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex'); + }, + + toUTF8(buffer: Uint8Array, start: number, end: number, fatal: boolean): string { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(buffer, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + + const string = nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end); + if (fatal) { + for (let i = 0; i < string.length; i++) { + if (string.charCodeAt(i) === 0xfffd) { + parseUtf8(buffer, start, end, true); + break; + } + } + } + return string; + }, + + utf8ByteLength(input: string): number { + return Buffer.byteLength(input, 'utf8'); + }, + + encodeUTF8Into(buffer: Uint8Array, source: string, byteOffset: number): number { + const latinBytesWritten = tryWriteBasicLatin(buffer, source, byteOffset); + if (latinBytesWritten != null) { + return latinBytesWritten; + } + + return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8'); + }, + + randomBytes: nodejsRandomBytes +}; diff --git a/week-3/04-course-app-hard/node_modules/bson/src/utils/number_utils.ts b/week-3/04-course-app-hard/node_modules/bson/src/utils/number_utils.ts new file mode 100644 index 000000000..32f6f5cc0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/utils/number_utils.ts @@ -0,0 +1,200 @@ +const FLOAT = new Float64Array(1); +const FLOAT_BYTES = new Uint8Array(FLOAT.buffer, 0, 8); + +FLOAT[0] = -1; +// Little endian [0, 0, 0, 0, 0, 0, 240, 191] +// Big endian [191, 240, 0, 0, 0, 0, 0, 0] +const isBigEndian = FLOAT_BYTES[7] === 0; + +/** + * @experimental + * @public + * + * A collection of functions that get or set various numeric types and bit widths from a Uint8Array. + */ +export type NumberUtils = { + /** + * Parses a signed int32 at offset. Throws a `RangeError` if value is negative. + */ + getNonnegativeInt32LE: (source: Uint8Array, offset: number) => number; + getInt32LE: (source: Uint8Array, offset: number) => number; + getUint32LE: (source: Uint8Array, offset: number) => number; + getUint32BE: (source: Uint8Array, offset: number) => number; + getBigInt64LE: (source: Uint8Array, offset: number) => bigint; + getFloat64LE: (source: Uint8Array, offset: number) => number; + setInt32BE: (destination: Uint8Array, offset: number, value: number) => 4; + setInt32LE: (destination: Uint8Array, offset: number, value: number) => 4; + setBigInt64LE: (destination: Uint8Array, offset: number, value: bigint) => 8; + setFloat64LE: (destination: Uint8Array, offset: number, value: number) => 8; +}; + +/** + * Number parsing and serializing utilities. + * + * @experimental + * @public + */ +export const NumberUtils: NumberUtils = { + getNonnegativeInt32LE(source: Uint8Array, offset: number): number { + if (source[offset + 3] > 127) { + throw new RangeError(`Size cannot be negative at offset: ${offset}`); + } + return ( + source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24) + ); + }, + + /** Reads a little-endian 32-bit integer from source */ + getInt32LE(source: Uint8Array, offset: number): number { + return ( + source[offset] | + (source[offset + 1] << 8) | + (source[offset + 2] << 16) | + (source[offset + 3] << 24) + ); + }, + + /** Reads a little-endian 32-bit unsigned integer from source */ + getUint32LE(source: Uint8Array, offset: number): number { + return ( + source[offset] + + source[offset + 1] * 256 + + source[offset + 2] * 65536 + + source[offset + 3] * 16777216 + ); + }, + + /** Reads a big-endian 32-bit integer from source */ + getUint32BE(source: Uint8Array, offset: number): number { + return ( + source[offset + 3] + + source[offset + 2] * 256 + + source[offset + 1] * 65536 + + source[offset] * 16777216 + ); + }, + + /** Reads a little-endian 64-bit integer from source */ + getBigInt64LE(source: Uint8Array, offset: number): bigint { + const lo = NumberUtils.getUint32LE(source, offset); + const hi = NumberUtils.getUint32LE(source, offset + 4); + + /* + eslint-disable-next-line no-restricted-globals + -- This is allowed since this helper should not be called unless bigint features are enabled + */ + return (BigInt(hi) << BigInt(32)) + BigInt(lo); + }, + + /** Reads a little-endian 64-bit float from source */ + getFloat64LE: isBigEndian + ? (source: Uint8Array, offset: number) => { + FLOAT_BYTES[7] = source[offset]; + FLOAT_BYTES[6] = source[offset + 1]; + FLOAT_BYTES[5] = source[offset + 2]; + FLOAT_BYTES[4] = source[offset + 3]; + FLOAT_BYTES[3] = source[offset + 4]; + FLOAT_BYTES[2] = source[offset + 5]; + FLOAT_BYTES[1] = source[offset + 6]; + FLOAT_BYTES[0] = source[offset + 7]; + return FLOAT[0]; + } + : (source: Uint8Array, offset: number) => { + FLOAT_BYTES[0] = source[offset]; + FLOAT_BYTES[1] = source[offset + 1]; + FLOAT_BYTES[2] = source[offset + 2]; + FLOAT_BYTES[3] = source[offset + 3]; + FLOAT_BYTES[4] = source[offset + 4]; + FLOAT_BYTES[5] = source[offset + 5]; + FLOAT_BYTES[6] = source[offset + 6]; + FLOAT_BYTES[7] = source[offset + 7]; + return FLOAT[0]; + }, + + /** Writes a big-endian 32-bit integer to destination, can be signed or unsigned */ + setInt32BE(destination: Uint8Array, offset: number, value: number): 4 { + destination[offset + 3] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset] = value; + return 4; + }, + + /** Writes a little-endian 32-bit integer to destination, can be signed or unsigned */ + setInt32LE(destination: Uint8Array, offset: number, value: number): 4 { + destination[offset] = value; + value >>>= 8; + destination[offset + 1] = value; + value >>>= 8; + destination[offset + 2] = value; + value >>>= 8; + destination[offset + 3] = value; + return 4; + }, + + /** Write a little-endian 64-bit integer to source */ + setBigInt64LE(destination: Uint8Array, offset: number, value: bigint): 8 { + /* eslint-disable-next-line no-restricted-globals -- This is allowed here as useBigInt64=true */ + const mask32bits = BigInt(0xffff_ffff); + + /** lower 32 bits */ + let lo = Number(value & mask32bits); + destination[offset] = lo; + lo >>= 8; + destination[offset + 1] = lo; + lo >>= 8; + destination[offset + 2] = lo; + lo >>= 8; + destination[offset + 3] = lo; + + /* + eslint-disable-next-line no-restricted-globals + -- This is allowed here as useBigInt64=true + + upper 32 bits + */ + let hi = Number((value >> BigInt(32)) & mask32bits); + destination[offset + 4] = hi; + hi >>= 8; + destination[offset + 5] = hi; + hi >>= 8; + destination[offset + 6] = hi; + hi >>= 8; + destination[offset + 7] = hi; + + return 8; + }, + + /** Writes a little-endian 64-bit float to destination */ + setFloat64LE: isBigEndian + ? (destination: Uint8Array, offset: number, value: number) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[7]; + destination[offset + 1] = FLOAT_BYTES[6]; + destination[offset + 2] = FLOAT_BYTES[5]; + destination[offset + 3] = FLOAT_BYTES[4]; + destination[offset + 4] = FLOAT_BYTES[3]; + destination[offset + 5] = FLOAT_BYTES[2]; + destination[offset + 6] = FLOAT_BYTES[1]; + destination[offset + 7] = FLOAT_BYTES[0]; + return 8; + } + : (destination: Uint8Array, offset: number, value: number) => { + FLOAT[0] = value; + destination[offset] = FLOAT_BYTES[0]; + destination[offset + 1] = FLOAT_BYTES[1]; + destination[offset + 2] = FLOAT_BYTES[2]; + destination[offset + 3] = FLOAT_BYTES[3]; + destination[offset + 4] = FLOAT_BYTES[4]; + destination[offset + 5] = FLOAT_BYTES[5]; + destination[offset + 6] = FLOAT_BYTES[6]; + destination[offset + 7] = FLOAT_BYTES[7]; + return 8; + } +}; diff --git a/week-3/04-course-app-hard/node_modules/bson/src/utils/string_utils.ts b/week-3/04-course-app-hard/node_modules/bson/src/utils/string_utils.ts new file mode 100644 index 000000000..1ffb118e9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/utils/string_utils.ts @@ -0,0 +1,44 @@ +/** + * @internal + * Removes leading zeros and explicit plus from textual representation of a number. + */ +export function removeLeadingZerosAndExplicitPlus(str: string): string { + if (str === '') { + return str; + } + + let startIndex = 0; + + const isNegative = str[startIndex] === '-'; + const isExplicitlyPositive = str[startIndex] === '+'; + + if (isExplicitlyPositive || isNegative) { + startIndex += 1; + } + + let foundInsignificantZero = false; + + for (; startIndex < str.length && str[startIndex] === '0'; ++startIndex) { + foundInsignificantZero = true; + } + + if (!foundInsignificantZero) { + return isExplicitlyPositive ? str.slice(1) : str; + } + + return `${isNegative ? '-' : ''}${str.length === startIndex ? '0' : str.slice(startIndex)}`; +} + +/** + * @internal + * Returns false for an string that contains invalid characters for its radix, else returns the original string. + * @param str - The textual representation of the Long + * @param radix - The radix in which the text is written (2-36), defaults to 10 + */ +export function validateStringCharacters(str: string, radix?: number): false | string { + radix = radix ?? 10; + const validCharacters = '0123456789abcdefghijklmnopqrstuvwxyz'.slice(0, radix); + // regex is case insensitive and checks that each character within the string is one of the validCharacters + const regex = new RegExp(`[^-+${validCharacters}]`, 'i'); + return regex.test(str) ? false : str; +} diff --git a/week-3/04-course-app-hard/node_modules/bson/src/utils/web_byte_utils.ts b/week-3/04-course-app-hard/node_modules/bson/src/utils/web_byte_utils.ts new file mode 100644 index 000000000..0f79f0df3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/src/utils/web_byte_utils.ts @@ -0,0 +1,197 @@ +import { BSONError } from '../error'; +import { tryReadBasicLatin } from './latin'; +import { parseUtf8 } from '../parse_utf8'; + +type TextDecoder = { + readonly encoding: string; + readonly fatal: boolean; + readonly ignoreBOM: boolean; + decode(input?: Uint8Array): string; +}; +type TextDecoderConstructor = { + new (label: 'utf8', options: { fatal: boolean; ignoreBOM?: boolean }): TextDecoder; +}; + +type TextEncoder = { + readonly encoding: string; + encode(input?: string): Uint8Array; +}; +type TextEncoderConstructor = { + new (): TextEncoder; +}; + +// Web global +declare const TextDecoder: TextDecoderConstructor; +declare const TextEncoder: TextEncoderConstructor; +declare const atob: (base64: string) => string; +declare const btoa: (binary: string) => string; + +type ArrayBufferViewWithTag = ArrayBufferView & { + [Symbol.toStringTag]?: string; +}; + +function isReactNative() { + const { navigator } = globalThis as { navigator?: { product?: string } }; + return typeof navigator === 'object' && navigator.product === 'ReactNative'; +} + +/** @internal */ +export function webMathRandomBytes(byteLength: number) { + if (byteLength < 0) { + throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`); + } + return webByteUtils.fromNumberArray( + Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256)) + ); +} + +/** @internal */ +const webRandomBytes: (byteLength: number) => Uint8Array = (() => { + const { crypto } = globalThis as { + crypto?: { getRandomValues?: (space: Uint8Array) => Uint8Array }; + }; + if (crypto != null && typeof crypto.getRandomValues === 'function') { + return (byteLength: number) => { + // @ts-expect-error: crypto.getRandomValues cannot actually be null here + // You cannot separate getRandomValues from crypto (need to have this === crypto) + return crypto.getRandomValues(webByteUtils.allocate(byteLength)); + }; + } else { + if (isReactNative()) { + const { console } = globalThis as { console?: { warn?: (message: string) => void } }; + console?.warn?.( + 'BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.' + ); + } + return webMathRandomBytes; + } +})(); + +const HEX_DIGIT = /(\d|[a-f])/i; + +/** @internal */ +export const webByteUtils = { + toLocalBufferType( + potentialUint8array: Uint8Array | ArrayBufferViewWithTag | ArrayBuffer + ): Uint8Array { + const stringTag = + potentialUint8array?.[Symbol.toStringTag] ?? + Object.prototype.toString.call(potentialUint8array); + + if (stringTag === 'Uint8Array') { + return potentialUint8array as Uint8Array; + } + + if (ArrayBuffer.isView(potentialUint8array)) { + return new Uint8Array( + potentialUint8array.buffer.slice( + potentialUint8array.byteOffset, + potentialUint8array.byteOffset + potentialUint8array.byteLength + ) + ); + } + + if ( + stringTag === 'ArrayBuffer' || + stringTag === 'SharedArrayBuffer' || + stringTag === '[object ArrayBuffer]' || + stringTag === '[object SharedArrayBuffer]' + ) { + return new Uint8Array(potentialUint8array); + } + + throw new BSONError(`Cannot make a Uint8Array from ${String(potentialUint8array)}`); + }, + + allocate(size: number): Uint8Array { + if (typeof size !== 'number') { + throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`); + } + return new Uint8Array(size); + }, + + allocateUnsafe(size: number): Uint8Array { + return webByteUtils.allocate(size); + }, + + equals(a: Uint8Array, b: Uint8Array): boolean { + if (a.byteLength !== b.byteLength) { + return false; + } + for (let i = 0; i < a.byteLength; i++) { + if (a[i] !== b[i]) { + return false; + } + } + return true; + }, + + fromNumberArray(array: number[]): Uint8Array { + return Uint8Array.from(array); + }, + + fromBase64(base64: string): Uint8Array { + return Uint8Array.from(atob(base64), c => c.charCodeAt(0)); + }, + + toBase64(uint8array: Uint8Array): string { + return btoa(webByteUtils.toISO88591(uint8array)); + }, + + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + fromISO88591(codePoints: string): Uint8Array { + return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff); + }, + + /** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */ + toISO88591(uint8array: Uint8Array): string { + return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join(''); + }, + + fromHex(hex: string): Uint8Array { + const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1); + const buffer = []; + + for (let i = 0; i < evenLengthHex.length; i += 2) { + const firstDigit = evenLengthHex[i]; + const secondDigit = evenLengthHex[i + 1]; + + if (!HEX_DIGIT.test(firstDigit)) { + break; + } + if (!HEX_DIGIT.test(secondDigit)) { + break; + } + + const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16); + buffer.push(hexDigit); + } + + return Uint8Array.from(buffer); + }, + + toHex(uint8array: Uint8Array): string { + return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join(''); + }, + + toUTF8(uint8array: Uint8Array, start: number, end: number, fatal: boolean): string { + const basicLatin = end - start <= 20 ? tryReadBasicLatin(uint8array, start, end) : null; + if (basicLatin != null) { + return basicLatin; + } + + return parseUtf8(uint8array, start, end, fatal); + }, + + utf8ByteLength(input: string): number { + return new TextEncoder().encode(input).byteLength; + }, + + encodeUTF8Into(uint8array: Uint8Array, source: string, byteOffset: number): number { + const bytes = new TextEncoder().encode(source); + uint8array.set(bytes, byteOffset); + return bytes.byteLength; + }, + + randomBytes: webRandomBytes +}; diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/base64/LICENSE-MIT.txt b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/LICENSE-MIT.txt new file mode 100644 index 000000000..a41e0a7ef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/LICENSE-MIT.txt @@ -0,0 +1,20 @@ +Copyright Mathias Bynens + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/base64/README.md b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/README.md new file mode 100644 index 000000000..ab0ef251e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/README.md @@ -0,0 +1,112 @@ +# base64 [![Build status](https://travis-ci.org/mathiasbynens/base64.svg?branch=master)](https://travis-ci.org/mathiasbynens/base64) [![Code coverage status](http://img.shields.io/coveralls/mathiasbynens/base64/master.svg)](https://coveralls.io/r/mathiasbynens/base64) + +_base64_ is a robust base64 encoder/decoder that is fully compatible with [`atob()` and `btoa()`](https://html.spec.whatwg.org/multipage/webappapis.html#atob), written in JavaScript. The base64-encoding and -decoding algorithms it uses are fully [RFC 4648](https://tools.ietf.org/html/rfc4648#section-4) compliant. + +## Installation + +Via [npm](https://www.npmjs.com/): + +```bash +npm install base-64 +``` + +In a browser: + +```html + +``` + +In [Narwhal](http://narwhaljs.org/), [Node.js](https://nodejs.org/), and [RingoJS](http://ringojs.org/): + +```js +var base64 = require('base-64'); +``` + +In [Rhino](http://www.mozilla.org/rhino/): + +```js +load('base64.js'); +``` + +Using an AMD loader like [RequireJS](http://requirejs.org/): + +```js +require( + { + 'paths': { + 'base64': 'path/to/base64' + } + }, + ['base64'], + function(base64) { + console.log(base64); + } +); +``` + +## API + +### `base64.version` + +A string representing the semantic version number. + +### `base64.encode(input)` + +This function takes a byte string (the `input` parameter) and encodes it according to base64. The input data must be in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values `0x00` to `0xFF`. The `base64.encode()` function is designed to be fully compatible with [`btoa()` as described in the HTML Standard](https://html.spec.whatwg.org/multipage/webappapis.html#dom-windowbase64-btoa). + +```js +var encodedData = base64.encode(input); +``` + +To base64-encode any Unicode string, [encode it as UTF-8 first](https://github.com/mathiasbynens/utf8.js#utf8encodestring): + +```js +var base64 = require('base-64'); +var utf8 = require('utf8'); + +var text = 'foo © bar 𝌆 baz'; +var bytes = utf8.encode(text); +var encoded = base64.encode(bytes); +console.log(encoded); +// → 'Zm9vIMKpIGJhciDwnYyGIGJheg==' +``` + +### `base64.decode(input)` + +This function takes a base64-encoded string (the `input` parameter) and decodes it. The return value is in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values `0x00` to `0xFF`. The `base64.decode()` function is designed to be fully compatible with [`atob()` as described in the HTML Standard](https://html.spec.whatwg.org/multipage/webappapis.html#dom-windowbase64-atob). + +```js +var decodedData = base64.decode(encodedData); +``` + +To base64-decode UTF-8-encoded data back into a Unicode string, [UTF-8-decode it](https://github.com/mathiasbynens/utf8.js#utf8decodebytestring) after base64-decoding it: + +```js +var encoded = 'Zm9vIMKpIGJhciDwnYyGIGJheg=='; +var bytes = base64.decode(encoded); +var text = utf8.decode(bytes); +console.log(text); +// → 'foo © bar 𝌆 baz' +``` + +## Support + +_base64_ is designed to work in at least Node.js v0.10.0, Narwhal 0.3.2, RingoJS 0.8-0.9, PhantomJS 1.9.0, Rhino 1.7RC4, as well as old and modern versions of Chrome, Firefox, Safari, Opera, and Internet Explorer. + +## Unit tests & code coverage + +After cloning this repository, run `npm install` to install the dependencies needed for development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`. + +Once that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use `grunt test`. + +To generate the code coverage report, use `grunt cover`. + +## Author + +| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") | +|---| +| [Mathias Bynens](https://mathiasbynens.be/) | + +## License + +_base64_ is available under the [MIT](https://mths.be/mit) license. diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/base64/base64.js b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/base64.js new file mode 100644 index 000000000..611b4461f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/base64.js @@ -0,0 +1,157 @@ +/*! https://mths.be/base64 v1.0.0 by @mathias | MIT license */ +;(function(root) { + + // Detect free variables `exports`. + var freeExports = typeof exports == 'object' && exports; + + // Detect free variable `module`. + var freeModule = typeof module == 'object' && module && + module.exports == freeExports && module; + + /*--------------------------------------------------------------------------*/ + + var InvalidCharacterError = function(message) { + this.message = message; + }; + InvalidCharacterError.prototype = new Error; + InvalidCharacterError.prototype.name = 'InvalidCharacterError'; + + var error = function(message) { + // Note: the error messages used throughout this file match those used by + // the native `atob`/`btoa` implementation in Chromium. + throw new InvalidCharacterError(message); + }; + + var TABLE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; + // http://whatwg.org/html/common-microsyntaxes.html#space-character + var REGEX_SPACE_CHARACTERS = /[\t\n\f\r ]/g; + + // `decode` is designed to be fully compatible with `atob` as described in the + // HTML Standard. http://whatwg.org/html/webappapis.html#dom-windowbase64-atob + // The optimized base64-decoding algorithm used is based on @atk’s excellent + // implementation. https://gist.github.com/atk/1020396 + var decode = function(input) { + input = String(input) + .replace(REGEX_SPACE_CHARACTERS, ''); + var length = input.length; + if (length % 4 == 0) { + input = input.replace(/==?$/, ''); + length = input.length; + } + if ( + length % 4 == 1 || + // http://whatwg.org/C#alphanumeric-ascii-characters + /[^+a-zA-Z0-9/]/.test(input) + ) { + error( + 'Invalid character: the string to be decoded is not correctly encoded.' + ); + } + var bitCounter = 0; + var bitStorage; + var buffer; + var output = ''; + var position = -1; + while (++position < length) { + buffer = TABLE.indexOf(input.charAt(position)); + bitStorage = bitCounter % 4 ? bitStorage * 64 + buffer : buffer; + // Unless this is the first of a group of 4 characters… + if (bitCounter++ % 4) { + // …convert the first 8 bits to a single ASCII character. + output += String.fromCharCode( + 0xFF & bitStorage >> (-2 * bitCounter & 6) + ); + } + } + return output; + }; + + // `encode` is designed to be fully compatible with `btoa` as described in the + // HTML Standard: http://whatwg.org/html/webappapis.html#dom-windowbase64-btoa + var encode = function(input) { + input = String(input); + if (/[^\0-\xFF]/.test(input)) { + // Note: no need to special-case astral symbols here, as surrogates are + // matched, and the input is supposed to only contain ASCII anyway. + error( + 'The string to be encoded contains characters outside of the ' + + 'Latin1 range.' + ); + } + var padding = input.length % 3; + var output = ''; + var position = -1; + var a; + var b; + var c; + var buffer; + // Make sure any padding is handled outside of the loop. + var length = input.length - padding; + + while (++position < length) { + // Read three bytes, i.e. 24 bits. + a = input.charCodeAt(position) << 16; + b = input.charCodeAt(++position) << 8; + c = input.charCodeAt(++position); + buffer = a + b + c; + // Turn the 24 bits into four chunks of 6 bits each, and append the + // matching character for each of them to the output. + output += ( + TABLE.charAt(buffer >> 18 & 0x3F) + + TABLE.charAt(buffer >> 12 & 0x3F) + + TABLE.charAt(buffer >> 6 & 0x3F) + + TABLE.charAt(buffer & 0x3F) + ); + } + + if (padding == 2) { + a = input.charCodeAt(position) << 8; + b = input.charCodeAt(++position); + buffer = a + b; + output += ( + TABLE.charAt(buffer >> 10) + + TABLE.charAt((buffer >> 4) & 0x3F) + + TABLE.charAt((buffer << 2) & 0x3F) + + '=' + ); + } else if (padding == 1) { + buffer = input.charCodeAt(position); + output += ( + TABLE.charAt(buffer >> 2) + + TABLE.charAt((buffer << 4) & 0x3F) + + '==' + ); + } + + return output; + }; + + var base64 = { + 'encode': encode, + 'decode': decode, + 'version': '1.0.0' + }; + + // Some AMD build optimizers, like r.js, check for specific condition patterns + // like the following: + if ( + typeof define == 'function' && + typeof define.amd == 'object' && + define.amd + ) { + define(function() { + return base64; + }); + } else if (freeExports && !freeExports.nodeType) { + if (freeModule) { // in Node.js or RingoJS v0.8.0+ + freeModule.exports = base64; + } else { // in Narwhal or RingoJS v0.7.0- + for (var key in base64) { + base64.hasOwnProperty(key) && (freeExports[key] = base64[key]); + } + } + } else { // in Rhino or a web browser + root.base64 = base64; + } + +}(this)); diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/base64/package.json b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/package.json new file mode 100644 index 000000000..479b0a180 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/base64/package.json @@ -0,0 +1,43 @@ +{ + "name": "base-64", + "version": "1.0.0", + "description": "A robust base64 encoder/decoder that is fully compatible with `atob()` and `btoa()`, written in JavaScript.", + "homepage": "https://mths.be/base64", + "main": "base64.js", + "keywords": [ + "codec", + "decoder", + "encoder", + "base64", + "atob", + "btoa" + ], + "license": "MIT", + "author": { + "name": "Mathias Bynens", + "url": "https://mathiasbynens.be/" + }, + "repository": { + "type": "git", + "url": "https://github.com/mathiasbynens/base64.git" + }, + "bugs": "https://github.com/mathiasbynens/base64/issues", + "files": [ + "LICENSE-MIT.txt", + "base64.js" + ], + "scripts": { + "test": "mocha tests/tests.js", + "build": "grunt build" + }, + "devDependencies": { + "coveralls": "^2.11.4", + "grunt": "^0.4.5", + "grunt-cli": "^1.3.2", + "grunt-shell": "^1.1.2", + "grunt-template": "^0.2.3", + "istanbul": "^0.4.0", + "mocha": "^6.2.0", + "regenerate": "^1.2.1" + } +} diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/LICENSE.md b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/LICENSE.md new file mode 100644 index 000000000..5ab10466b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/LICENSE.md @@ -0,0 +1,237 @@ +The encoding indexes, algorithms, and many comments in the code +derive from the Encoding Standard https://encoding.spec.whatwg.org/ + +Otherwise, the code of this repository is released under the Unlicense +license and is also dual-licensed under an Apache 2.0 license. Both +are included below. + +# Unlicense + +This is free and unencumbered software released into the public domain. + +Anyone is free to copy, modify, publish, use, compile, sell, or +distribute this software, either in source code form or as a compiled +binary, for any purpose, commercial or non-commercial, and by any +means. + +In jurisdictions that recognize copyright laws, the author or authors +of this software dedicate any and all copyright interest in the +software to the public domain. We make this dedication for the benefit +of the public at large and to the detriment of our heirs and +successors. 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It is also implemented to match the +specification's algorithms, rather than for performance. The intended +use is within Web pages, so it has no dependency on server frameworks +or particular module schemes. + +Basic examples and tests are included. + +### Install ### + +There are a few ways you can get and use the `text-encoding` library. + +### HTML Page Usage ### + +Clone the repo and include the files directly: + +```html + + + +``` + +This is the only use case the developer cares about. If you want those +fancy module and/or package manager things that are popular these days +you should probably use a different library. + +#### Package Managers #### + +The package is published to **npm** and **bower** as `text-encoding`. +Use through these is not really supported, since they aren't used by +the developer of the library. Using `require()` in interesting ways +probably breaks. Patches welcome, as long as they don't break the +basic use of the files via ` +``` + +To support the legacy encodings (which may be stateful), the +TextEncoder `encode()` method accepts an optional dictionary and +`stream` option, e.g. `encoder.encode(string, {stream: true});` This +is not needed for standard encoding since the input is always in +complete code points. diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/index.js b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/index.js new file mode 100644 index 000000000..cc57d658f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/index.js @@ -0,0 +1,9 @@ +// This is free and unencumbered software released into the public domain. +// See LICENSE.md for more information. + +var encoding = require("./lib/encoding.js"); + +module.exports = { + TextEncoder: encoding.TextEncoder, + TextDecoder: encoding.TextDecoder, +}; diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/lib/encoding-indexes.js b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/lib/encoding-indexes.js new file mode 100644 index 000000000..4f170c3bb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/lib/encoding-indexes.js @@ -0,0 +1,47 @@ +(function(global) { + 'use strict'; + + if (typeof module !== "undefined" && module.exports) { + module.exports = global; + } + + global["encoding-indexes"] = +{ + 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"x-mac-cyrillic":[1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,8224,176,1168,163,167,8226,182,1030,174,169,8482,1026,1106,8800,1027,1107,8734,177,8804,8805,1110,181,1169,1032,1028,1108,1031,1111,1033,1113,1034,1114,1112,1029,172,8730,402,8776,8710,171,187,8230,160,1035,1115,1036,1116,1109,8211,8212,8220,8221,8216,8217,247,8222,1038,1118,1039,1119,8470,1025,1105,1103,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,8364] +}; + +// For strict environments where `this` inside the global scope +// is `undefined`, take a pure object instead +}(this || {})); \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/lib/encoding.js b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/lib/encoding.js new file mode 100644 index 000000000..f01991a8e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/lib/encoding.js @@ -0,0 +1,3301 @@ +// This is free and unencumbered software released into the public domain. +// See LICENSE.md for more information. + +/** + * @fileoverview Global |this| required for resolving indexes in node. + * @suppress {globalThis} + */ +(function(global) { + 'use strict'; + + // + // Utilities + // + + /** + * @param {number} a The number to test. + * @param {number} min The minimum value in the range, inclusive. + * @param {number} max The maximum value in the range, inclusive. + * @return {boolean} True if a >= min and a <= max. + */ + function inRange(a, min, max) { + return min <= a && a <= max; + } + + /** + * @param {!Array.<*>} array The array to check. + * @param {*} item The item to look for in the array. + * @return {boolean} True if the item appears in the array. + */ + function includes(array, item) { + return array.indexOf(item) !== -1; + } + + var floor = Math.floor; + + /** + * @param {*} o + * @return {Object} + */ + function ToDictionary(o) { + if (o === undefined) return {}; + if (o === Object(o)) return o; + throw TypeError('Could not convert argument to dictionary'); + } + + /** + * @param {string} string Input string of UTF-16 code units. + * @return {!Array.} Code points. + */ + function stringToCodePoints(string) { + // https://heycam.github.io/webidl/#dfn-obtain-unicode + + // 1. Let S be the DOMString value. + var s = String(string); + + // 2. Let n be the length of S. + var n = s.length; + + // 3. Initialize i to 0. + var i = 0; + + // 4. Initialize U to be an empty sequence of Unicode characters. + var u = []; + + // 5. While i < n: + while (i < n) { + + // 1. Let c be the code unit in S at index i. + var c = s.charCodeAt(i); + + // 2. Depending on the value of c: + + // c < 0xD800 or c > 0xDFFF + if (c < 0xD800 || c > 0xDFFF) { + // Append to U the Unicode character with code point c. + u.push(c); + } + + // 0xDC00 ≤ c ≤ 0xDFFF + else if (0xDC00 <= c && c <= 0xDFFF) { + // Append to U a U+FFFD REPLACEMENT CHARACTER. + u.push(0xFFFD); + } + + // 0xD800 ≤ c ≤ 0xDBFF + else if (0xD800 <= c && c <= 0xDBFF) { + // 1. If i = n−1, then append to U a U+FFFD REPLACEMENT + // CHARACTER. + if (i === n - 1) { + u.push(0xFFFD); + } + // 2. Otherwise, i < n−1: + else { + // 1. Let d be the code unit in S at index i+1. + var d = s.charCodeAt(i + 1); + + // 2. If 0xDC00 ≤ d ≤ 0xDFFF, then: + if (0xDC00 <= d && d <= 0xDFFF) { + // 1. Let a be c & 0x3FF. + var a = c & 0x3FF; + + // 2. Let b be d & 0x3FF. + var b = d & 0x3FF; + + // 3. Append to U the Unicode character with code point + // 2^16+2^10*a+b. + u.push(0x10000 + (a << 10) + b); + + // 4. Set i to i+1. + i += 1; + } + + // 3. Otherwise, d < 0xDC00 or d > 0xDFFF. Append to U a + // U+FFFD REPLACEMENT CHARACTER. + else { + u.push(0xFFFD); + } + } + } + + // 3. Set i to i+1. + i += 1; + } + + // 6. Return U. + return u; + } + + /** + * @param {!Array.} code_points Array of code points. + * @return {string} string String of UTF-16 code units. + */ + function codePointsToString(code_points) { + var s = ''; + for (var i = 0; i < code_points.length; ++i) { + var cp = code_points[i]; + if (cp <= 0xFFFF) { + s += String.fromCharCode(cp); + } else { + cp -= 0x10000; + s += String.fromCharCode((cp >> 10) + 0xD800, + (cp & 0x3FF) + 0xDC00); + } + } + return s; + } + + + // + // Implementation of Encoding specification + // https://encoding.spec.whatwg.org/ + // + + // + // 4. Terminology + // + + /** + * An ASCII byte is a byte in the range 0x00 to 0x7F, inclusive. + * @param {number} a The number to test. + * @return {boolean} True if a is in the range 0x00 to 0x7F, inclusive. + */ + function isASCIIByte(a) { + return 0x00 <= a && a <= 0x7F; + } + + /** + * An ASCII code point is a code point in the range U+0000 to + * U+007F, inclusive. + */ + var isASCIICodePoint = isASCIIByte; + + + /** + * End-of-stream is a special token that signifies no more tokens + * are in the stream. + * @const + */ var end_of_stream = -1; + + /** + * A stream represents an ordered sequence of tokens. + * + * @constructor + * @param {!(Array.|Uint8Array)} tokens Array of tokens that provide + * the stream. + */ + function Stream(tokens) { + /** @type {!Array.} */ + this.tokens = [].slice.call(tokens); + // Reversed as push/pop is more efficient than shift/unshift. + this.tokens.reverse(); + } + + Stream.prototype = { + /** + * @return {boolean} True if end-of-stream has been hit. + */ + endOfStream: function() { + return !this.tokens.length; + }, + + /** + * When a token is read from a stream, the first token in the + * stream must be returned and subsequently removed, and + * end-of-stream must be returned otherwise. + * + * @return {number} Get the next token from the stream, or + * end_of_stream. + */ + read: function() { + if (!this.tokens.length) + return end_of_stream; + return this.tokens.pop(); + }, + + /** + * When one or more tokens are prepended to a stream, those tokens + * must be inserted, in given order, before the first token in the + * stream. + * + * @param {(number|!Array.)} token The token(s) to prepend to the + * stream. + */ + prepend: function(token) { + if (Array.isArray(token)) { + var tokens = /**@type {!Array.}*/(token); + while (tokens.length) + this.tokens.push(tokens.pop()); + } else { + this.tokens.push(token); + } + }, + + /** + * When one or more tokens are pushed to a stream, those tokens + * must be inserted, in given order, after the last token in the + * stream. + * + * @param {(number|!Array.)} token The tokens(s) to push to the + * stream. + */ + push: function(token) { + if (Array.isArray(token)) { + var tokens = /**@type {!Array.}*/(token); + while (tokens.length) + this.tokens.unshift(tokens.shift()); + } else { + this.tokens.unshift(token); + } + } + }; + + // + // 5. Encodings + // + + // 5.1 Encoders and decoders + + /** @const */ + var finished = -1; + + /** + * @param {boolean} fatal If true, decoding errors raise an exception. + * @param {number=} opt_code_point Override the standard fallback code point. + * @return {number} The code point to insert on a decoding error. + */ + function decoderError(fatal, opt_code_point) { + if (fatal) + throw TypeError('Decoder error'); + return opt_code_point || 0xFFFD; + } + + /** + * @param {number} code_point The code point that could not be encoded. + * @return {number} Always throws, no value is actually returned. + */ + function encoderError(code_point) { + throw TypeError('The code point ' + code_point + ' could not be encoded.'); + } + + /** @interface */ + function Decoder() {} + Decoder.prototype = { + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point, or |finished|. + */ + handler: function(stream, bite) {} + }; + + /** @interface */ + function Encoder() {} + Encoder.prototype = { + /** + * @param {Stream} stream The stream of code points being encoded. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit, or |finished|. + */ + handler: function(stream, code_point) {} + }; + + // 5.2 Names and labels + + // TODO: Define @typedef for Encoding: {name:string,labels:Array.} + // https://github.com/google/closure-compiler/issues/247 + + /** + * @param {string} label The encoding label. + * @return {?{name:string,labels:Array.}} + */ + function getEncoding(label) { + // 1. Remove any leading and trailing ASCII whitespace from label. + label = String(label).trim().toLowerCase(); + + // 2. If label is an ASCII case-insensitive match for any of the + // labels listed in the table below, return the corresponding + // encoding, and failure otherwise. + if (Object.prototype.hasOwnProperty.call(label_to_encoding, label)) { + return label_to_encoding[label]; + } + return null; + } + + /** + * Encodings table: https://encoding.spec.whatwg.org/encodings.json + * @const + * @type {!Array.<{ + * heading: string, + * encodings: Array.<{name:string,labels:Array.}> + * }>} + */ + var encodings = [ + { + "encodings": [ + { + "labels": [ + "unicode-1-1-utf-8", + "utf-8", + "utf8" + ], + "name": "UTF-8" + } + ], + "heading": "The Encoding" + }, + { + "encodings": [ + { + "labels": [ + "866", + "cp866", + "csibm866", + "ibm866" + ], + "name": "IBM866" + }, + { + "labels": [ + "csisolatin2", + "iso-8859-2", + "iso-ir-101", + "iso8859-2", + "iso88592", + "iso_8859-2", + "iso_8859-2:1987", + "l2", + "latin2" + ], + "name": "ISO-8859-2" + }, + { + "labels": [ + "csisolatin3", + "iso-8859-3", + "iso-ir-109", + "iso8859-3", + "iso88593", + "iso_8859-3", + "iso_8859-3:1988", + "l3", + "latin3" + ], + "name": "ISO-8859-3" + }, + { + "labels": [ + "csisolatin4", + "iso-8859-4", + "iso-ir-110", + "iso8859-4", + "iso88594", + "iso_8859-4", + "iso_8859-4:1988", + "l4", + "latin4" + ], + "name": "ISO-8859-4" + }, + { + "labels": [ + "csisolatincyrillic", + "cyrillic", + "iso-8859-5", + "iso-ir-144", + "iso8859-5", + "iso88595", + "iso_8859-5", + "iso_8859-5:1988" + ], + "name": "ISO-8859-5" + }, + { + "labels": [ + "arabic", + "asmo-708", + "csiso88596e", + "csiso88596i", + "csisolatinarabic", + "ecma-114", + "iso-8859-6", + "iso-8859-6-e", + "iso-8859-6-i", + "iso-ir-127", + "iso8859-6", + "iso88596", + "iso_8859-6", + "iso_8859-6:1987" + ], + "name": "ISO-8859-6" + }, + { + "labels": [ + "csisolatingreek", + "ecma-118", + "elot_928", + "greek", + "greek8", + "iso-8859-7", + "iso-ir-126", + "iso8859-7", + "iso88597", + "iso_8859-7", + "iso_8859-7:1987", + "sun_eu_greek" + ], + "name": "ISO-8859-7" + }, + { + "labels": [ + "csiso88598e", + "csisolatinhebrew", + "hebrew", + "iso-8859-8", + "iso-8859-8-e", + "iso-ir-138", + "iso8859-8", + "iso88598", + "iso_8859-8", + "iso_8859-8:1988", + "visual" + ], + "name": "ISO-8859-8" + }, + { + "labels": [ + "csiso88598i", + "iso-8859-8-i", + "logical" + ], + "name": "ISO-8859-8-I" + }, + { + "labels": [ + "csisolatin6", + "iso-8859-10", + "iso-ir-157", + "iso8859-10", + "iso885910", + "l6", + "latin6" + ], + "name": "ISO-8859-10" + }, + { + "labels": [ + "iso-8859-13", + "iso8859-13", + "iso885913" + ], + "name": "ISO-8859-13" + }, + { + "labels": [ + "iso-8859-14", + "iso8859-14", + "iso885914" + ], + "name": "ISO-8859-14" + }, + { + "labels": [ + "csisolatin9", + "iso-8859-15", + "iso8859-15", + "iso885915", + "iso_8859-15", + "l9" + ], + "name": "ISO-8859-15" + }, + { + "labels": [ + "iso-8859-16" + ], + "name": "ISO-8859-16" + }, + { + "labels": [ + "cskoi8r", + "koi", + "koi8", + "koi8-r", + "koi8_r" + ], + "name": "KOI8-R" + }, + { + "labels": [ + "koi8-ru", + "koi8-u" + ], + "name": "KOI8-U" + }, + { + "labels": [ + "csmacintosh", + "mac", + "macintosh", + "x-mac-roman" + ], + "name": "macintosh" + }, + { + "labels": [ + "dos-874", + "iso-8859-11", + "iso8859-11", + "iso885911", + "tis-620", + "windows-874" + ], + "name": "windows-874" + }, + { + "labels": [ + "cp1250", + "windows-1250", + "x-cp1250" + ], + "name": "windows-1250" + }, + { + "labels": [ + "cp1251", + "windows-1251", + "x-cp1251" + ], + "name": "windows-1251" + }, + { + "labels": [ + "ansi_x3.4-1968", + "ascii", + "cp1252", + "cp819", + "csisolatin1", + "ibm819", + "iso-8859-1", + "iso-ir-100", + "iso8859-1", + "iso88591", + "iso_8859-1", + "iso_8859-1:1987", + "l1", + "latin1", + "us-ascii", + "windows-1252", + "x-cp1252" + ], + "name": "windows-1252" + }, + { + "labels": [ + "cp1253", + "windows-1253", + "x-cp1253" + ], + "name": "windows-1253" + }, + { + "labels": [ + "cp1254", + "csisolatin5", + "iso-8859-9", + "iso-ir-148", + "iso8859-9", + "iso88599", + "iso_8859-9", + "iso_8859-9:1989", + "l5", + "latin5", + "windows-1254", + "x-cp1254" + ], + "name": "windows-1254" + }, + { + "labels": [ + "cp1255", + "windows-1255", + "x-cp1255" + ], + "name": "windows-1255" + }, + { + "labels": [ + "cp1256", + "windows-1256", + "x-cp1256" + ], + "name": "windows-1256" + }, + { + "labels": [ + "cp1257", + "windows-1257", + "x-cp1257" + ], + "name": "windows-1257" + }, + { + "labels": [ + "cp1258", + "windows-1258", + "x-cp1258" + ], + "name": "windows-1258" + }, + { + "labels": [ + "x-mac-cyrillic", + "x-mac-ukrainian" + ], + "name": "x-mac-cyrillic" + } + ], + "heading": "Legacy single-byte encodings" + }, + { + "encodings": [ + { + "labels": [ + "chinese", + "csgb2312", + "csiso58gb231280", + "gb2312", + "gb_2312", + "gb_2312-80", + "gbk", + "iso-ir-58", + "x-gbk" + ], + "name": "GBK" + }, + { + "labels": [ + "gb18030" + ], + "name": "gb18030" + } + ], + "heading": "Legacy multi-byte Chinese (simplified) encodings" + }, + { + "encodings": [ + { + "labels": [ + "big5", + "big5-hkscs", + "cn-big5", + "csbig5", + "x-x-big5" + ], + "name": "Big5" + } + ], + "heading": "Legacy multi-byte Chinese (traditional) encodings" + }, + { + "encodings": [ + { + "labels": [ + "cseucpkdfmtjapanese", + "euc-jp", + "x-euc-jp" + ], + "name": "EUC-JP" + }, + { + "labels": [ + "csiso2022jp", + "iso-2022-jp" + ], + "name": "ISO-2022-JP" + }, + { + "labels": [ + "csshiftjis", + "ms932", + "ms_kanji", + "shift-jis", + "shift_jis", + "sjis", + "windows-31j", + "x-sjis" + ], + "name": "Shift_JIS" + } + ], + "heading": "Legacy multi-byte Japanese encodings" + }, + { + "encodings": [ + { + "labels": [ + "cseuckr", + "csksc56011987", + "euc-kr", + "iso-ir-149", + "korean", + "ks_c_5601-1987", + "ks_c_5601-1989", + "ksc5601", + "ksc_5601", + "windows-949" + ], + "name": "EUC-KR" + } + ], + "heading": "Legacy multi-byte Korean encodings" + }, + { + "encodings": [ + { + "labels": [ + "csiso2022kr", + "hz-gb-2312", + "iso-2022-cn", + "iso-2022-cn-ext", + "iso-2022-kr" + ], + "name": "replacement" + }, + { + "labels": [ + "utf-16be" + ], + "name": "UTF-16BE" + }, + { + "labels": [ + "utf-16", + "utf-16le" + ], + "name": "UTF-16LE" + }, + { + "labels": [ + "x-user-defined" + ], + "name": "x-user-defined" + } + ], + "heading": "Legacy miscellaneous encodings" + } + ]; + + // Label to encoding registry. + /** @type {Object.}>} */ + var label_to_encoding = {}; + encodings.forEach(function(category) { + category.encodings.forEach(function(encoding) { + encoding.labels.forEach(function(label) { + label_to_encoding[label] = encoding; + }); + }); + }); + + // Registry of of encoder/decoder factories, by encoding name. + /** @type {Object.} */ + var encoders = {}; + /** @type {Object.} */ + var decoders = {}; + + // + // 6. Indexes + // + + /** + * @param {number} pointer The |pointer| to search for. + * @param {(!Array.|undefined)} index The |index| to search within. + * @return {?number} The code point corresponding to |pointer| in |index|, + * or null if |code point| is not in |index|. + */ + function indexCodePointFor(pointer, index) { + if (!index) return null; + return index[pointer] || null; + } + + /** + * @param {number} code_point The |code point| to search for. + * @param {!Array.} index The |index| to search within. + * @return {?number} The first pointer corresponding to |code point| in + * |index|, or null if |code point| is not in |index|. + */ + function indexPointerFor(code_point, index) { + var pointer = index.indexOf(code_point); + return pointer === -1 ? null : pointer; + } + + /** + * @param {string} name Name of the index. + * @return {(!Array.|!Array.>)} + * */ + function index(name) { + if (!('encoding-indexes' in global)) { + throw Error("Indexes missing." + + " Did you forget to include encoding-indexes.js first?"); + } + return global['encoding-indexes'][name]; + } + + /** + * @param {number} pointer The |pointer| to search for in the gb18030 index. + * @return {?number} The code point corresponding to |pointer| in |index|, + * or null if |code point| is not in the gb18030 index. + */ + function indexGB18030RangesCodePointFor(pointer) { + // 1. If pointer is greater than 39419 and less than 189000, or + // pointer is greater than 1237575, return null. + if ((pointer > 39419 && pointer < 189000) || (pointer > 1237575)) + return null; + + // 2. If pointer is 7457, return code point U+E7C7. + if (pointer === 7457) return 0xE7C7; + + // 3. Let offset be the last pointer in index gb18030 ranges that + // is equal to or less than pointer and let code point offset be + // its corresponding code point. + var offset = 0; + var code_point_offset = 0; + var idx = index('gb18030-ranges'); + var i; + for (i = 0; i < idx.length; ++i) { + /** @type {!Array.} */ + var entry = idx[i]; + if (entry[0] <= pointer) { + offset = entry[0]; + code_point_offset = entry[1]; + } else { + break; + } + } + + // 4. Return a code point whose value is code point offset + + // pointer − offset. + return code_point_offset + pointer - offset; + } + + /** + * @param {number} code_point The |code point| to locate in the gb18030 index. + * @return {number} The first pointer corresponding to |code point| in the + * gb18030 index. + */ + function indexGB18030RangesPointerFor(code_point) { + // 1. If code point is U+E7C7, return pointer 7457. + if (code_point === 0xE7C7) return 7457; + + // 2. Let offset be the last code point in index gb18030 ranges + // that is equal to or less than code point and let pointer offset + // be its corresponding pointer. + var offset = 0; + var pointer_offset = 0; + var idx = index('gb18030-ranges'); + var i; + for (i = 0; i < idx.length; ++i) { + /** @type {!Array.} */ + var entry = idx[i]; + if (entry[1] <= code_point) { + offset = entry[1]; + pointer_offset = entry[0]; + } else { + break; + } + } + + // 3. Return a pointer whose value is pointer offset + code point + // − offset. + return pointer_offset + code_point - offset; + } + + /** + * @param {number} code_point The |code_point| to search for in the Shift_JIS + * index. + * @return {?number} The code point corresponding to |pointer| in |index|, + * or null if |code point| is not in the Shift_JIS index. + */ + function indexShiftJISPointerFor(code_point) { + // 1. Let index be index jis0208 excluding all entries whose + // pointer is in the range 8272 to 8835, inclusive. + shift_jis_index = shift_jis_index || + index('jis0208').map(function(code_point, pointer) { + return inRange(pointer, 8272, 8835) ? null : code_point; + }); + var index_ = shift_jis_index; + + // 2. Return the index pointer for code point in index. + return index_.indexOf(code_point); + } + var shift_jis_index; + + /** + * @param {number} code_point The |code_point| to search for in the big5 + * index. + * @return {?number} The code point corresponding to |pointer| in |index|, + * or null if |code point| is not in the big5 index. + */ + function indexBig5PointerFor(code_point) { + // 1. Let index be index Big5 excluding all entries whose pointer + big5_index_no_hkscs = big5_index_no_hkscs || + index('big5').map(function(code_point, pointer) { + return (pointer < (0xA1 - 0x81) * 157) ? null : code_point; + }); + var index_ = big5_index_no_hkscs; + + // 2. If code point is U+2550, U+255E, U+2561, U+256A, U+5341, or + // U+5345, return the last pointer corresponding to code point in + // index. + if (code_point === 0x2550 || code_point === 0x255E || + code_point === 0x2561 || code_point === 0x256A || + code_point === 0x5341 || code_point === 0x5345) { + return index_.lastIndexOf(code_point); + } + + // 3. Return the index pointer for code point in index. + return indexPointerFor(code_point, index_); + } + var big5_index_no_hkscs; + + // + // 8. API + // + + /** @const */ var DEFAULT_ENCODING = 'utf-8'; + + // 8.1 Interface TextDecoder + + /** + * @constructor + * @param {string=} label The label of the encoding; + * defaults to 'utf-8'. + * @param {Object=} options + */ + function TextDecoder(label, options) { + // Web IDL conventions + if (!(this instanceof TextDecoder)) + throw TypeError('Called as a function. Did you forget \'new\'?'); + label = label !== undefined ? String(label) : DEFAULT_ENCODING; + options = ToDictionary(options); + + // A TextDecoder object has an associated encoding, decoder, + // stream, ignore BOM flag (initially unset), BOM seen flag + // (initially unset), error mode (initially replacement), and do + // not flush flag (initially unset). + + /** @private */ + this._encoding = null; + /** @private @type {?Decoder} */ + this._decoder = null; + /** @private @type {boolean} */ + this._ignoreBOM = false; + /** @private @type {boolean} */ + this._BOMseen = false; + /** @private @type {string} */ + this._error_mode = 'replacement'; + /** @private @type {boolean} */ + this._do_not_flush = false; + + + // 1. Let encoding be the result of getting an encoding from + // label. + var encoding = getEncoding(label); + + // 2. If encoding is failure or replacement, throw a RangeError. + if (encoding === null || encoding.name === 'replacement') + throw RangeError('Unknown encoding: ' + label); + if (!decoders[encoding.name]) { + throw Error('Decoder not present.' + + ' Did you forget to include encoding-indexes.js first?'); + } + + // 3. Let dec be a new TextDecoder object. + var dec = this; + + // 4. Set dec's encoding to encoding. + dec._encoding = encoding; + + // 5. If options's fatal member is true, set dec's error mode to + // fatal. + if (Boolean(options['fatal'])) + dec._error_mode = 'fatal'; + + // 6. If options's ignoreBOM member is true, set dec's ignore BOM + // flag. + if (Boolean(options['ignoreBOM'])) + dec._ignoreBOM = true; + + // For pre-ES5 runtimes: + if (!Object.defineProperty) { + this.encoding = dec._encoding.name.toLowerCase(); + this.fatal = dec._error_mode === 'fatal'; + this.ignoreBOM = dec._ignoreBOM; + } + + // 7. Return dec. + return dec; + } + + if (Object.defineProperty) { + // The encoding attribute's getter must return encoding's name. + Object.defineProperty(TextDecoder.prototype, 'encoding', { + /** @this {TextDecoder} */ + get: function() { return this._encoding.name.toLowerCase(); } + }); + + // The fatal attribute's getter must return true if error mode + // is fatal, and false otherwise. + Object.defineProperty(TextDecoder.prototype, 'fatal', { + /** @this {TextDecoder} */ + get: function() { return this._error_mode === 'fatal'; } + }); + + // The ignoreBOM attribute's getter must return true if ignore + // BOM flag is set, and false otherwise. + Object.defineProperty(TextDecoder.prototype, 'ignoreBOM', { + /** @this {TextDecoder} */ + get: function() { return this._ignoreBOM; } + }); + } + + /** + * @param {BufferSource=} input The buffer of bytes to decode. + * @param {Object=} options + * @return {string} The decoded string. + */ + TextDecoder.prototype.decode = function decode(input, options) { + var bytes; + if (typeof input === 'object' && input instanceof ArrayBuffer) { + bytes = new Uint8Array(input); + } else if (typeof input === 'object' && 'buffer' in input && + input.buffer instanceof ArrayBuffer) { + bytes = new Uint8Array(input.buffer, + input.byteOffset, + input.byteLength); + } else { + bytes = new Uint8Array(0); + } + + options = ToDictionary(options); + + // 1. If the do not flush flag is unset, set decoder to a new + // encoding's decoder, set stream to a new stream, and unset the + // BOM seen flag. + if (!this._do_not_flush) { + this._decoder = decoders[this._encoding.name]({ + fatal: this._error_mode === 'fatal'}); + this._BOMseen = false; + } + + // 2. If options's stream is true, set the do not flush flag, and + // unset the do not flush flag otherwise. + this._do_not_flush = Boolean(options['stream']); + + // 3. If input is given, push a copy of input to stream. + // TODO: Align with spec algorithm - maintain stream on instance. + var input_stream = new Stream(bytes); + + // 4. Let output be a new stream. + var output = []; + + /** @type {?(number|!Array.)} */ + var result; + + // 5. While true: + while (true) { + // 1. Let token be the result of reading from stream. + var token = input_stream.read(); + + // 2. If token is end-of-stream and the do not flush flag is + // set, return output, serialized. + // TODO: Align with spec algorithm. + if (token === end_of_stream) + break; + + // 3. Otherwise, run these subsubsteps: + + // 1. Let result be the result of processing token for decoder, + // stream, output, and error mode. + result = this._decoder.handler(input_stream, token); + + // 2. If result is finished, return output, serialized. + if (result === finished) + break; + + if (result !== null) { + if (Array.isArray(result)) + output.push.apply(output, /**@type {!Array.}*/(result)); + else + output.push(result); + } + + // 3. Otherwise, if result is error, throw a TypeError. + // (Thrown in handler) + + // 4. Otherwise, do nothing. + } + // TODO: Align with spec algorithm. + if (!this._do_not_flush) { + do { + result = this._decoder.handler(input_stream, input_stream.read()); + if (result === finished) + break; + if (result === null) + continue; + if (Array.isArray(result)) + output.push.apply(output, /**@type {!Array.}*/(result)); + else + output.push(result); + } while (!input_stream.endOfStream()); + this._decoder = null; + } + + // A TextDecoder object also has an associated serialize stream + // algorithm... + /** + * @param {!Array.} stream + * @return {string} + * @this {TextDecoder} + */ + function serializeStream(stream) { + // 1. Let token be the result of reading from stream. + // (Done in-place on array, rather than as a stream) + + // 2. If encoding is UTF-8, UTF-16BE, or UTF-16LE, and ignore + // BOM flag and BOM seen flag are unset, run these subsubsteps: + if (includes(['UTF-8', 'UTF-16LE', 'UTF-16BE'], this._encoding.name) && + !this._ignoreBOM && !this._BOMseen) { + if (stream.length > 0 && stream[0] === 0xFEFF) { + // 1. If token is U+FEFF, set BOM seen flag. + this._BOMseen = true; + stream.shift(); + } else if (stream.length > 0) { + // 2. Otherwise, if token is not end-of-stream, set BOM seen + // flag and append token to stream. + this._BOMseen = true; + } else { + // 3. Otherwise, if token is not end-of-stream, append token + // to output. + // (no-op) + } + } + // 4. Otherwise, return output. + return codePointsToString(stream); + } + + return serializeStream.call(this, output); + }; + + // 8.2 Interface TextEncoder + + /** + * @constructor + * @param {string=} label The label of the encoding. NONSTANDARD. + * @param {Object=} options NONSTANDARD. + */ + function TextEncoder(label, options) { + // Web IDL conventions + if (!(this instanceof TextEncoder)) + throw TypeError('Called as a function. Did you forget \'new\'?'); + options = ToDictionary(options); + + // A TextEncoder object has an associated encoding and encoder. + + /** @private */ + this._encoding = null; + /** @private @type {?Encoder} */ + this._encoder = null; + + // Non-standard + /** @private @type {boolean} */ + this._do_not_flush = false; + /** @private @type {string} */ + this._fatal = Boolean(options['fatal']) ? 'fatal' : 'replacement'; + + // 1. Let enc be a new TextEncoder object. + var enc = this; + + // 2. Set enc's encoding to UTF-8's encoder. + if (Boolean(options['NONSTANDARD_allowLegacyEncoding'])) { + // NONSTANDARD behavior. + label = label !== undefined ? String(label) : DEFAULT_ENCODING; + var encoding = getEncoding(label); + if (encoding === null || encoding.name === 'replacement') + throw RangeError('Unknown encoding: ' + label); + if (!encoders[encoding.name]) { + throw Error('Encoder not present.' + + ' Did you forget to include encoding-indexes.js first?'); + } + enc._encoding = encoding; + } else { + // Standard behavior. + enc._encoding = getEncoding('utf-8'); + + if (label !== undefined && 'console' in global) { + console.warn('TextEncoder constructor called with encoding label, ' + + 'which is ignored.'); + } + } + + // For pre-ES5 runtimes: + if (!Object.defineProperty) + this.encoding = enc._encoding.name.toLowerCase(); + + // 3. Return enc. + return enc; + } + + if (Object.defineProperty) { + // The encoding attribute's getter must return encoding's name. + Object.defineProperty(TextEncoder.prototype, 'encoding', { + /** @this {TextEncoder} */ + get: function() { return this._encoding.name.toLowerCase(); } + }); + } + + /** + * @param {string=} opt_string The string to encode. + * @param {Object=} options + * @return {!Uint8Array} Encoded bytes, as a Uint8Array. + */ + TextEncoder.prototype.encode = function encode(opt_string, options) { + opt_string = opt_string === undefined ? '' : String(opt_string); + options = ToDictionary(options); + + // NOTE: This option is nonstandard. None of the encodings + // permitted for encoding (i.e. UTF-8, UTF-16) are stateful when + // the input is a USVString so streaming is not necessary. + if (!this._do_not_flush) + this._encoder = encoders[this._encoding.name]({ + fatal: this._fatal === 'fatal'}); + this._do_not_flush = Boolean(options['stream']); + + // 1. Convert input to a stream. + var input = new Stream(stringToCodePoints(opt_string)); + + // 2. Let output be a new stream + var output = []; + + /** @type {?(number|!Array.)} */ + var result; + // 3. While true, run these substeps: + while (true) { + // 1. Let token be the result of reading from input. + var token = input.read(); + if (token === end_of_stream) + break; + // 2. Let result be the result of processing token for encoder, + // input, output. + result = this._encoder.handler(input, token); + if (result === finished) + break; + if (Array.isArray(result)) + output.push.apply(output, /**@type {!Array.}*/(result)); + else + output.push(result); + } + // TODO: Align with spec algorithm. + if (!this._do_not_flush) { + while (true) { + result = this._encoder.handler(input, input.read()); + if (result === finished) + break; + if (Array.isArray(result)) + output.push.apply(output, /**@type {!Array.}*/(result)); + else + output.push(result); + } + this._encoder = null; + } + // 3. If result is finished, convert output into a byte sequence, + // and then return a Uint8Array object wrapping an ArrayBuffer + // containing output. + return new Uint8Array(output); + }; + + + // + // 9. The encoding + // + + // 9.1 utf-8 + + // 9.1.1 utf-8 decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function UTF8Decoder(options) { + var fatal = options.fatal; + + // utf-8's decoder's has an associated utf-8 code point, utf-8 + // bytes seen, and utf-8 bytes needed (all initially 0), a utf-8 + // lower boundary (initially 0x80), and a utf-8 upper boundary + // (initially 0xBF). + var /** @type {number} */ utf8_code_point = 0, + /** @type {number} */ utf8_bytes_seen = 0, + /** @type {number} */ utf8_bytes_needed = 0, + /** @type {number} */ utf8_lower_boundary = 0x80, + /** @type {number} */ utf8_upper_boundary = 0xBF; + + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and utf-8 bytes needed is not 0, + // set utf-8 bytes needed to 0 and return error. + if (bite === end_of_stream && utf8_bytes_needed !== 0) { + utf8_bytes_needed = 0; + return decoderError(fatal); + } + + // 2. If byte is end-of-stream, return finished. + if (bite === end_of_stream) + return finished; + + // 3. If utf-8 bytes needed is 0, based on byte: + if (utf8_bytes_needed === 0) { + + // 0x00 to 0x7F + if (inRange(bite, 0x00, 0x7F)) { + // Return a code point whose value is byte. + return bite; + } + + // 0xC2 to 0xDF + else if (inRange(bite, 0xC2, 0xDF)) { + // 1. Set utf-8 bytes needed to 1. + utf8_bytes_needed = 1; + + // 2. Set UTF-8 code point to byte & 0x1F. + utf8_code_point = bite & 0x1F; + } + + // 0xE0 to 0xEF + else if (inRange(bite, 0xE0, 0xEF)) { + // 1. If byte is 0xE0, set utf-8 lower boundary to 0xA0. + if (bite === 0xE0) + utf8_lower_boundary = 0xA0; + // 2. If byte is 0xED, set utf-8 upper boundary to 0x9F. + if (bite === 0xED) + utf8_upper_boundary = 0x9F; + // 3. Set utf-8 bytes needed to 2. + utf8_bytes_needed = 2; + // 4. Set UTF-8 code point to byte & 0xF. + utf8_code_point = bite & 0xF; + } + + // 0xF0 to 0xF4 + else if (inRange(bite, 0xF0, 0xF4)) { + // 1. If byte is 0xF0, set utf-8 lower boundary to 0x90. + if (bite === 0xF0) + utf8_lower_boundary = 0x90; + // 2. If byte is 0xF4, set utf-8 upper boundary to 0x8F. + if (bite === 0xF4) + utf8_upper_boundary = 0x8F; + // 3. Set utf-8 bytes needed to 3. + utf8_bytes_needed = 3; + // 4. Set UTF-8 code point to byte & 0x7. + utf8_code_point = bite & 0x7; + } + + // Otherwise + else { + // Return error. + return decoderError(fatal); + } + + // Return continue. + return null; + } + + // 4. If byte is not in the range utf-8 lower boundary to utf-8 + // upper boundary, inclusive, run these substeps: + if (!inRange(bite, utf8_lower_boundary, utf8_upper_boundary)) { + + // 1. Set utf-8 code point, utf-8 bytes needed, and utf-8 + // bytes seen to 0, set utf-8 lower boundary to 0x80, and set + // utf-8 upper boundary to 0xBF. + utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0; + utf8_lower_boundary = 0x80; + utf8_upper_boundary = 0xBF; + + // 2. Prepend byte to stream. + stream.prepend(bite); + + // 3. Return error. + return decoderError(fatal); + } + + // 5. Set utf-8 lower boundary to 0x80 and utf-8 upper boundary + // to 0xBF. + utf8_lower_boundary = 0x80; + utf8_upper_boundary = 0xBF; + + // 6. Set UTF-8 code point to (UTF-8 code point << 6) | (byte & + // 0x3F) + utf8_code_point = (utf8_code_point << 6) | (bite & 0x3F); + + // 7. Increase utf-8 bytes seen by one. + utf8_bytes_seen += 1; + + // 8. If utf-8 bytes seen is not equal to utf-8 bytes needed, + // continue. + if (utf8_bytes_seen !== utf8_bytes_needed) + return null; + + // 9. Let code point be utf-8 code point. + var code_point = utf8_code_point; + + // 10. Set utf-8 code point, utf-8 bytes needed, and utf-8 bytes + // seen to 0. + utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0; + + // 11. Return a code point whose value is code point. + return code_point; + }; + } + + // 9.1.2 utf-8 encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function UTF8Encoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. Set count and offset based on the range code point is in: + var count, offset; + // U+0080 to U+07FF, inclusive: + if (inRange(code_point, 0x0080, 0x07FF)) { + // 1 and 0xC0 + count = 1; + offset = 0xC0; + } + // U+0800 to U+FFFF, inclusive: + else if (inRange(code_point, 0x0800, 0xFFFF)) { + // 2 and 0xE0 + count = 2; + offset = 0xE0; + } + // U+10000 to U+10FFFF, inclusive: + else if (inRange(code_point, 0x10000, 0x10FFFF)) { + // 3 and 0xF0 + count = 3; + offset = 0xF0; + } + + // 4. Let bytes be a byte sequence whose first byte is (code + // point >> (6 × count)) + offset. + var bytes = [(code_point >> (6 * count)) + offset]; + + // 5. Run these substeps while count is greater than 0: + while (count > 0) { + + // 1. Set temp to code point >> (6 × (count − 1)). + var temp = code_point >> (6 * (count - 1)); + + // 2. Append to bytes 0x80 | (temp & 0x3F). + bytes.push(0x80 | (temp & 0x3F)); + + // 3. Decrease count by one. + count -= 1; + } + + // 6. Return bytes bytes, in order. + return bytes; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['UTF-8'] = function(options) { + return new UTF8Encoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['UTF-8'] = function(options) { + return new UTF8Decoder(options); + }; + + // + // 10. Legacy single-byte encodings + // + + // 10.1 single-byte decoder + /** + * @constructor + * @implements {Decoder} + * @param {!Array.} index The encoding index. + * @param {{fatal: boolean}} options + */ + function SingleByteDecoder(index, options) { + var fatal = options.fatal; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream, return finished. + if (bite === end_of_stream) + return finished; + + // 2. If byte is an ASCII byte, return a code point whose value + // is byte. + if (isASCIIByte(bite)) + return bite; + + // 3. Let code point be the index code point for byte − 0x80 in + // index single-byte. + var code_point = index[bite - 0x80]; + + // 4. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 5. Return a code point whose value is code point. + return code_point; + }; + } + + // 10.2 single-byte encoder + /** + * @constructor + * @implements {Encoder} + * @param {!Array.} index The encoding index. + * @param {{fatal: boolean}} options + */ + function SingleByteEncoder(index, options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. Let pointer be the index pointer for code point in index + // single-byte. + var pointer = indexPointerFor(code_point, index); + + // 4. If pointer is null, return error with code point. + if (pointer === null) + encoderError(code_point); + + // 5. Return a byte whose value is pointer + 0x80. + return pointer + 0x80; + }; + } + + (function() { + if (!('encoding-indexes' in global)) + return; + encodings.forEach(function(category) { + if (category.heading !== 'Legacy single-byte encodings') + return; + category.encodings.forEach(function(encoding) { + var name = encoding.name; + var idx = index(name.toLowerCase()); + /** @param {{fatal: boolean}} options */ + decoders[name] = function(options) { + return new SingleByteDecoder(idx, options); + }; + /** @param {{fatal: boolean}} options */ + encoders[name] = function(options) { + return new SingleByteEncoder(idx, options); + }; + }); + }); + }()); + + // + // 11. Legacy multi-byte Chinese (simplified) encodings + // + + // 11.1 gbk + + // 11.1.1 gbk decoder + // gbk's decoder is gb18030's decoder. + /** @param {{fatal: boolean}} options */ + decoders['GBK'] = function(options) { + return new GB18030Decoder(options); + }; + + // 11.1.2 gbk encoder + // gbk's encoder is gb18030's encoder with its gbk flag set. + /** @param {{fatal: boolean}} options */ + encoders['GBK'] = function(options) { + return new GB18030Encoder(options, true); + }; + + // 11.2 gb18030 + + // 11.2.1 gb18030 decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function GB18030Decoder(options) { + var fatal = options.fatal; + // gb18030's decoder has an associated gb18030 first, gb18030 + // second, and gb18030 third (all initially 0x00). + var /** @type {number} */ gb18030_first = 0x00, + /** @type {number} */ gb18030_second = 0x00, + /** @type {number} */ gb18030_third = 0x00; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and gb18030 first, gb18030 + // second, and gb18030 third are 0x00, return finished. + if (bite === end_of_stream && gb18030_first === 0x00 && + gb18030_second === 0x00 && gb18030_third === 0x00) { + return finished; + } + // 2. If byte is end-of-stream, and gb18030 first, gb18030 + // second, or gb18030 third is not 0x00, set gb18030 first, + // gb18030 second, and gb18030 third to 0x00, and return error. + if (bite === end_of_stream && + (gb18030_first !== 0x00 || gb18030_second !== 0x00 || + gb18030_third !== 0x00)) { + gb18030_first = 0x00; + gb18030_second = 0x00; + gb18030_third = 0x00; + decoderError(fatal); + } + var code_point; + // 3. If gb18030 third is not 0x00, run these substeps: + if (gb18030_third !== 0x00) { + // 1. Let code point be null. + code_point = null; + // 2. If byte is in the range 0x30 to 0x39, inclusive, set + // code point to the index gb18030 ranges code point for + // (((gb18030 first − 0x81) × 10 + gb18030 second − 0x30) × + // 126 + gb18030 third − 0x81) × 10 + byte − 0x30. + if (inRange(bite, 0x30, 0x39)) { + code_point = indexGB18030RangesCodePointFor( + (((gb18030_first - 0x81) * 10 + gb18030_second - 0x30) * 126 + + gb18030_third - 0x81) * 10 + bite - 0x30); + } + + // 3. Let buffer be a byte sequence consisting of gb18030 + // second, gb18030 third, and byte, in order. + var buffer = [gb18030_second, gb18030_third, bite]; + + // 4. Set gb18030 first, gb18030 second, and gb18030 third to + // 0x00. + gb18030_first = 0x00; + gb18030_second = 0x00; + gb18030_third = 0x00; + + // 5. If code point is null, prepend buffer to stream and + // return error. + if (code_point === null) { + stream.prepend(buffer); + return decoderError(fatal); + } + + // 6. Return a code point whose value is code point. + return code_point; + } + + // 4. If gb18030 second is not 0x00, run these substeps: + if (gb18030_second !== 0x00) { + + // 1. If byte is in the range 0x81 to 0xFE, inclusive, set + // gb18030 third to byte and return continue. + if (inRange(bite, 0x81, 0xFE)) { + gb18030_third = bite; + return null; + } + + // 2. Prepend gb18030 second followed by byte to stream, set + // gb18030 first and gb18030 second to 0x00, and return error. + stream.prepend([gb18030_second, bite]); + gb18030_first = 0x00; + gb18030_second = 0x00; + return decoderError(fatal); + } + + // 5. If gb18030 first is not 0x00, run these substeps: + if (gb18030_first !== 0x00) { + + // 1. If byte is in the range 0x30 to 0x39, inclusive, set + // gb18030 second to byte and return continue. + if (inRange(bite, 0x30, 0x39)) { + gb18030_second = bite; + return null; + } + + // 2. Let lead be gb18030 first, let pointer be null, and set + // gb18030 first to 0x00. + var lead = gb18030_first; + var pointer = null; + gb18030_first = 0x00; + + // 3. Let offset be 0x40 if byte is less than 0x7F and 0x41 + // otherwise. + var offset = bite < 0x7F ? 0x40 : 0x41; + + // 4. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80 + // to 0xFE, inclusive, set pointer to (lead − 0x81) × 190 + + // (byte − offset). + if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFE)) + pointer = (lead - 0x81) * 190 + (bite - offset); + + // 5. Let code point be null if pointer is null and the index + // code point for pointer in index gb18030 otherwise. + code_point = pointer === null ? null : + indexCodePointFor(pointer, index('gb18030')); + + // 6. If code point is null and byte is an ASCII byte, prepend + // byte to stream. + if (code_point === null && isASCIIByte(bite)) + stream.prepend(bite); + + // 7. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 8. Return a code point whose value is code point. + return code_point; + } + + // 6. If byte is an ASCII byte, return a code point whose value + // is byte. + if (isASCIIByte(bite)) + return bite; + + // 7. If byte is 0x80, return code point U+20AC. + if (bite === 0x80) + return 0x20AC; + + // 8. If byte is in the range 0x81 to 0xFE, inclusive, set + // gb18030 first to byte and return continue. + if (inRange(bite, 0x81, 0xFE)) { + gb18030_first = bite; + return null; + } + + // 9. Return error. + return decoderError(fatal); + }; + } + + // 11.2.2 gb18030 encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + * @param {boolean=} gbk_flag + */ + function GB18030Encoder(options, gbk_flag) { + var fatal = options.fatal; + // gb18030's decoder has an associated gbk flag (initially unset). + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. If code point is U+E5E5, return error with code point. + if (code_point === 0xE5E5) + return encoderError(code_point); + + // 4. If the gbk flag is set and code point is U+20AC, return + // byte 0x80. + if (gbk_flag && code_point === 0x20AC) + return 0x80; + + // 5. Let pointer be the index pointer for code point in index + // gb18030. + var pointer = indexPointerFor(code_point, index('gb18030')); + + // 6. If pointer is not null, run these substeps: + if (pointer !== null) { + + // 1. Let lead be floor(pointer / 190) + 0x81. + var lead = floor(pointer / 190) + 0x81; + + // 2. Let trail be pointer % 190. + var trail = pointer % 190; + + // 3. Let offset be 0x40 if trail is less than 0x3F and 0x41 otherwise. + var offset = trail < 0x3F ? 0x40 : 0x41; + + // 4. Return two bytes whose values are lead and trail + offset. + return [lead, trail + offset]; + } + + // 7. If gbk flag is set, return error with code point. + if (gbk_flag) + return encoderError(code_point); + + // 8. Set pointer to the index gb18030 ranges pointer for code + // point. + pointer = indexGB18030RangesPointerFor(code_point); + + // 9. Let byte1 be floor(pointer / 10 / 126 / 10). + var byte1 = floor(pointer / 10 / 126 / 10); + + // 10. Set pointer to pointer − byte1 × 10 × 126 × 10. + pointer = pointer - byte1 * 10 * 126 * 10; + + // 11. Let byte2 be floor(pointer / 10 / 126). + var byte2 = floor(pointer / 10 / 126); + + // 12. Set pointer to pointer − byte2 × 10 × 126. + pointer = pointer - byte2 * 10 * 126; + + // 13. Let byte3 be floor(pointer / 10). + var byte3 = floor(pointer / 10); + + // 14. Let byte4 be pointer − byte3 × 10. + var byte4 = pointer - byte3 * 10; + + // 15. Return four bytes whose values are byte1 + 0x81, byte2 + + // 0x30, byte3 + 0x81, byte4 + 0x30. + return [byte1 + 0x81, + byte2 + 0x30, + byte3 + 0x81, + byte4 + 0x30]; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['gb18030'] = function(options) { + return new GB18030Encoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['gb18030'] = function(options) { + return new GB18030Decoder(options); + }; + + + // + // 12. Legacy multi-byte Chinese (traditional) encodings + // + + // 12.1 Big5 + + // 12.1.1 Big5 decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function Big5Decoder(options) { + var fatal = options.fatal; + // Big5's decoder has an associated Big5 lead (initially 0x00). + var /** @type {number} */ Big5_lead = 0x00; + + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and Big5 lead is not 0x00, set + // Big5 lead to 0x00 and return error. + if (bite === end_of_stream && Big5_lead !== 0x00) { + Big5_lead = 0x00; + return decoderError(fatal); + } + + // 2. If byte is end-of-stream and Big5 lead is 0x00, return + // finished. + if (bite === end_of_stream && Big5_lead === 0x00) + return finished; + + // 3. If Big5 lead is not 0x00, let lead be Big5 lead, let + // pointer be null, set Big5 lead to 0x00, and then run these + // substeps: + if (Big5_lead !== 0x00) { + var lead = Big5_lead; + var pointer = null; + Big5_lead = 0x00; + + // 1. Let offset be 0x40 if byte is less than 0x7F and 0x62 + // otherwise. + var offset = bite < 0x7F ? 0x40 : 0x62; + + // 2. If byte is in the range 0x40 to 0x7E, inclusive, or 0xA1 + // to 0xFE, inclusive, set pointer to (lead − 0x81) × 157 + + // (byte − offset). + if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0xA1, 0xFE)) + pointer = (lead - 0x81) * 157 + (bite - offset); + + // 3. If there is a row in the table below whose first column + // is pointer, return the two code points listed in its second + // column + // Pointer | Code points + // --------+-------------- + // 1133 | U+00CA U+0304 + // 1135 | U+00CA U+030C + // 1164 | U+00EA U+0304 + // 1166 | U+00EA U+030C + switch (pointer) { + case 1133: return [0x00CA, 0x0304]; + case 1135: return [0x00CA, 0x030C]; + case 1164: return [0x00EA, 0x0304]; + case 1166: return [0x00EA, 0x030C]; + } + + // 4. Let code point be null if pointer is null and the index + // code point for pointer in index Big5 otherwise. + var code_point = (pointer === null) ? null : + indexCodePointFor(pointer, index('big5')); + + // 5. If code point is null and byte is an ASCII byte, prepend + // byte to stream. + if (code_point === null && isASCIIByte(bite)) + stream.prepend(bite); + + // 6. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 7. Return a code point whose value is code point. + return code_point; + } + + // 4. If byte is an ASCII byte, return a code point whose value + // is byte. + if (isASCIIByte(bite)) + return bite; + + // 5. If byte is in the range 0x81 to 0xFE, inclusive, set Big5 + // lead to byte and return continue. + if (inRange(bite, 0x81, 0xFE)) { + Big5_lead = bite; + return null; + } + + // 6. Return error. + return decoderError(fatal); + }; + } + + // 12.1.2 Big5 encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function Big5Encoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. Let pointer be the index Big5 pointer for code point. + var pointer = indexBig5PointerFor(code_point); + + // 4. If pointer is null, return error with code point. + if (pointer === null) + return encoderError(code_point); + + // 5. Let lead be floor(pointer / 157) + 0x81. + var lead = floor(pointer / 157) + 0x81; + + // 6. If lead is less than 0xA1, return error with code point. + if (lead < 0xA1) + return encoderError(code_point); + + // 7. Let trail be pointer % 157. + var trail = pointer % 157; + + // 8. Let offset be 0x40 if trail is less than 0x3F and 0x62 + // otherwise. + var offset = trail < 0x3F ? 0x40 : 0x62; + + // Return two bytes whose values are lead and trail + offset. + return [lead, trail + offset]; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['Big5'] = function(options) { + return new Big5Encoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['Big5'] = function(options) { + return new Big5Decoder(options); + }; + + + // + // 13. Legacy multi-byte Japanese encodings + // + + // 13.1 euc-jp + + // 13.1.1 euc-jp decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function EUCJPDecoder(options) { + var fatal = options.fatal; + + // euc-jp's decoder has an associated euc-jp jis0212 flag + // (initially unset) and euc-jp lead (initially 0x00). + var /** @type {boolean} */ eucjp_jis0212_flag = false, + /** @type {number} */ eucjp_lead = 0x00; + + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and euc-jp lead is not 0x00, set + // euc-jp lead to 0x00, and return error. + if (bite === end_of_stream && eucjp_lead !== 0x00) { + eucjp_lead = 0x00; + return decoderError(fatal); + } + + // 2. If byte is end-of-stream and euc-jp lead is 0x00, return + // finished. + if (bite === end_of_stream && eucjp_lead === 0x00) + return finished; + + // 3. If euc-jp lead is 0x8E and byte is in the range 0xA1 to + // 0xDF, inclusive, set euc-jp lead to 0x00 and return a code + // point whose value is 0xFF61 − 0xA1 + byte. + if (eucjp_lead === 0x8E && inRange(bite, 0xA1, 0xDF)) { + eucjp_lead = 0x00; + return 0xFF61 - 0xA1 + bite; + } + + // 4. If euc-jp lead is 0x8F and byte is in the range 0xA1 to + // 0xFE, inclusive, set the euc-jp jis0212 flag, set euc-jp lead + // to byte, and return continue. + if (eucjp_lead === 0x8F && inRange(bite, 0xA1, 0xFE)) { + eucjp_jis0212_flag = true; + eucjp_lead = bite; + return null; + } + + // 5. If euc-jp lead is not 0x00, let lead be euc-jp lead, set + // euc-jp lead to 0x00, and run these substeps: + if (eucjp_lead !== 0x00) { + var lead = eucjp_lead; + eucjp_lead = 0x00; + + // 1. Let code point be null. + var code_point = null; + + // 2. If lead and byte are both in the range 0xA1 to 0xFE, + // inclusive, set code point to the index code point for (lead + // − 0xA1) × 94 + byte − 0xA1 in index jis0208 if the euc-jp + // jis0212 flag is unset and in index jis0212 otherwise. + if (inRange(lead, 0xA1, 0xFE) && inRange(bite, 0xA1, 0xFE)) { + code_point = indexCodePointFor( + (lead - 0xA1) * 94 + (bite - 0xA1), + index(!eucjp_jis0212_flag ? 'jis0208' : 'jis0212')); + } + + // 3. Unset the euc-jp jis0212 flag. + eucjp_jis0212_flag = false; + + // 4. If byte is not in the range 0xA1 to 0xFE, inclusive, + // prepend byte to stream. + if (!inRange(bite, 0xA1, 0xFE)) + stream.prepend(bite); + + // 5. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 6. Return a code point whose value is code point. + return code_point; + } + + // 6. If byte is an ASCII byte, return a code point whose value + // is byte. + if (isASCIIByte(bite)) + return bite; + + // 7. If byte is 0x8E, 0x8F, or in the range 0xA1 to 0xFE, + // inclusive, set euc-jp lead to byte and return continue. + if (bite === 0x8E || bite === 0x8F || inRange(bite, 0xA1, 0xFE)) { + eucjp_lead = bite; + return null; + } + + // 8. Return error. + return decoderError(fatal); + }; + } + + // 13.1.2 euc-jp encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function EUCJPEncoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. If code point is U+00A5, return byte 0x5C. + if (code_point === 0x00A5) + return 0x5C; + + // 4. If code point is U+203E, return byte 0x7E. + if (code_point === 0x203E) + return 0x7E; + + // 5. If code point is in the range U+FF61 to U+FF9F, inclusive, + // return two bytes whose values are 0x8E and code point − + // 0xFF61 + 0xA1. + if (inRange(code_point, 0xFF61, 0xFF9F)) + return [0x8E, code_point - 0xFF61 + 0xA1]; + + // 6. If code point is U+2212, set it to U+FF0D. + if (code_point === 0x2212) + code_point = 0xFF0D; + + // 7. Let pointer be the index pointer for code point in index + // jis0208. + var pointer = indexPointerFor(code_point, index('jis0208')); + + // 8. If pointer is null, return error with code point. + if (pointer === null) + return encoderError(code_point); + + // 9. Let lead be floor(pointer / 94) + 0xA1. + var lead = floor(pointer / 94) + 0xA1; + + // 10. Let trail be pointer % 94 + 0xA1. + var trail = pointer % 94 + 0xA1; + + // 11. Return two bytes whose values are lead and trail. + return [lead, trail]; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['EUC-JP'] = function(options) { + return new EUCJPEncoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['EUC-JP'] = function(options) { + return new EUCJPDecoder(options); + }; + + // 13.2 iso-2022-jp + + // 13.2.1 iso-2022-jp decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function ISO2022JPDecoder(options) { + var fatal = options.fatal; + /** @enum */ + var states = { + ASCII: 0, + Roman: 1, + Katakana: 2, + LeadByte: 3, + TrailByte: 4, + EscapeStart: 5, + Escape: 6 + }; + // iso-2022-jp's decoder has an associated iso-2022-jp decoder + // state (initially ASCII), iso-2022-jp decoder output state + // (initially ASCII), iso-2022-jp lead (initially 0x00), and + // iso-2022-jp output flag (initially unset). + var /** @type {number} */ iso2022jp_decoder_state = states.ASCII, + /** @type {number} */ iso2022jp_decoder_output_state = states.ASCII, + /** @type {number} */ iso2022jp_lead = 0x00, + /** @type {boolean} */ iso2022jp_output_flag = false; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // switching on iso-2022-jp decoder state: + switch (iso2022jp_decoder_state) { + default: + case states.ASCII: + // ASCII + // Based on byte: + + // 0x1B + if (bite === 0x1B) { + // Set iso-2022-jp decoder state to escape start and return + // continue. + iso2022jp_decoder_state = states.EscapeStart; + return null; + } + + // 0x00 to 0x7F, excluding 0x0E, 0x0F, and 0x1B + if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E + && bite !== 0x0F && bite !== 0x1B) { + // Unset the iso-2022-jp output flag and return a code point + // whose value is byte. + iso2022jp_output_flag = false; + return bite; + } + + // end-of-stream + if (bite === end_of_stream) { + // Return finished. + return finished; + } + + // Otherwise + // Unset the iso-2022-jp output flag and return error. + iso2022jp_output_flag = false; + return decoderError(fatal); + + case states.Roman: + // Roman + // Based on byte: + + // 0x1B + if (bite === 0x1B) { + // Set iso-2022-jp decoder state to escape start and return + // continue. + iso2022jp_decoder_state = states.EscapeStart; + return null; + } + + // 0x5C + if (bite === 0x5C) { + // Unset the iso-2022-jp output flag and return code point + // U+00A5. + iso2022jp_output_flag = false; + return 0x00A5; + } + + // 0x7E + if (bite === 0x7E) { + // Unset the iso-2022-jp output flag and return code point + // U+203E. + iso2022jp_output_flag = false; + return 0x203E; + } + + // 0x00 to 0x7F, excluding 0x0E, 0x0F, 0x1B, 0x5C, and 0x7E + if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E && bite !== 0x0F + && bite !== 0x1B && bite !== 0x5C && bite !== 0x7E) { + // Unset the iso-2022-jp output flag and return a code point + // whose value is byte. + iso2022jp_output_flag = false; + return bite; + } + + // end-of-stream + if (bite === end_of_stream) { + // Return finished. + return finished; + } + + // Otherwise + // Unset the iso-2022-jp output flag and return error. + iso2022jp_output_flag = false; + return decoderError(fatal); + + case states.Katakana: + // Katakana + // Based on byte: + + // 0x1B + if (bite === 0x1B) { + // Set iso-2022-jp decoder state to escape start and return + // continue. + iso2022jp_decoder_state = states.EscapeStart; + return null; + } + + // 0x21 to 0x5F + if (inRange(bite, 0x21, 0x5F)) { + // Unset the iso-2022-jp output flag and return a code point + // whose value is 0xFF61 − 0x21 + byte. + iso2022jp_output_flag = false; + return 0xFF61 - 0x21 + bite; + } + + // end-of-stream + if (bite === end_of_stream) { + // Return finished. + return finished; + } + + // Otherwise + // Unset the iso-2022-jp output flag and return error. + iso2022jp_output_flag = false; + return decoderError(fatal); + + case states.LeadByte: + // Lead byte + // Based on byte: + + // 0x1B + if (bite === 0x1B) { + // Set iso-2022-jp decoder state to escape start and return + // continue. + iso2022jp_decoder_state = states.EscapeStart; + return null; + } + + // 0x21 to 0x7E + if (inRange(bite, 0x21, 0x7E)) { + // Unset the iso-2022-jp output flag, set iso-2022-jp lead + // to byte, iso-2022-jp decoder state to trail byte, and + // return continue. + iso2022jp_output_flag = false; + iso2022jp_lead = bite; + iso2022jp_decoder_state = states.TrailByte; + return null; + } + + // end-of-stream + if (bite === end_of_stream) { + // Return finished. + return finished; + } + + // Otherwise + // Unset the iso-2022-jp output flag and return error. + iso2022jp_output_flag = false; + return decoderError(fatal); + + case states.TrailByte: + // Trail byte + // Based on byte: + + // 0x1B + if (bite === 0x1B) { + // Set iso-2022-jp decoder state to escape start and return + // continue. + iso2022jp_decoder_state = states.EscapeStart; + return decoderError(fatal); + } + + // 0x21 to 0x7E + if (inRange(bite, 0x21, 0x7E)) { + // 1. Set the iso-2022-jp decoder state to lead byte. + iso2022jp_decoder_state = states.LeadByte; + + // 2. Let pointer be (iso-2022-jp lead − 0x21) × 94 + byte − 0x21. + var pointer = (iso2022jp_lead - 0x21) * 94 + bite - 0x21; + + // 3. Let code point be the index code point for pointer in + // index jis0208. + var code_point = indexCodePointFor(pointer, index('jis0208')); + + // 4. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 5. Return a code point whose value is code point. + return code_point; + } + + // end-of-stream + if (bite === end_of_stream) { + // Set the iso-2022-jp decoder state to lead byte, prepend + // byte to stream, and return error. + iso2022jp_decoder_state = states.LeadByte; + stream.prepend(bite); + return decoderError(fatal); + } + + // Otherwise + // Set iso-2022-jp decoder state to lead byte and return + // error. + iso2022jp_decoder_state = states.LeadByte; + return decoderError(fatal); + + case states.EscapeStart: + // Escape start + + // 1. If byte is either 0x24 or 0x28, set iso-2022-jp lead to + // byte, iso-2022-jp decoder state to escape, and return + // continue. + if (bite === 0x24 || bite === 0x28) { + iso2022jp_lead = bite; + iso2022jp_decoder_state = states.Escape; + return null; + } + + // 2. Prepend byte to stream. + stream.prepend(bite); + + // 3. Unset the iso-2022-jp output flag, set iso-2022-jp + // decoder state to iso-2022-jp decoder output state, and + // return error. + iso2022jp_output_flag = false; + iso2022jp_decoder_state = iso2022jp_decoder_output_state; + return decoderError(fatal); + + case states.Escape: + // Escape + + // 1. Let lead be iso-2022-jp lead and set iso-2022-jp lead to + // 0x00. + var lead = iso2022jp_lead; + iso2022jp_lead = 0x00; + + // 2. Let state be null. + var state = null; + + // 3. If lead is 0x28 and byte is 0x42, set state to ASCII. + if (lead === 0x28 && bite === 0x42) + state = states.ASCII; + + // 4. If lead is 0x28 and byte is 0x4A, set state to Roman. + if (lead === 0x28 && bite === 0x4A) + state = states.Roman; + + // 5. If lead is 0x28 and byte is 0x49, set state to Katakana. + if (lead === 0x28 && bite === 0x49) + state = states.Katakana; + + // 6. If lead is 0x24 and byte is either 0x40 or 0x42, set + // state to lead byte. + if (lead === 0x24 && (bite === 0x40 || bite === 0x42)) + state = states.LeadByte; + + // 7. If state is non-null, run these substeps: + if (state !== null) { + // 1. Set iso-2022-jp decoder state and iso-2022-jp decoder + // output state to states. + iso2022jp_decoder_state = iso2022jp_decoder_state = state; + + // 2. Let output flag be the iso-2022-jp output flag. + var output_flag = iso2022jp_output_flag; + + // 3. Set the iso-2022-jp output flag. + iso2022jp_output_flag = true; + + // 4. Return continue, if output flag is unset, and error + // otherwise. + return !output_flag ? null : decoderError(fatal); + } + + // 8. Prepend lead and byte to stream. + stream.prepend([lead, bite]); + + // 9. Unset the iso-2022-jp output flag, set iso-2022-jp + // decoder state to iso-2022-jp decoder output state and + // return error. + iso2022jp_output_flag = false; + iso2022jp_decoder_state = iso2022jp_decoder_output_state; + return decoderError(fatal); + } + }; + } + + // 13.2.2 iso-2022-jp encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function ISO2022JPEncoder(options) { + var fatal = options.fatal; + // iso-2022-jp's encoder has an associated iso-2022-jp encoder + // state which is one of ASCII, Roman, and jis0208 (initially + // ASCII). + /** @enum */ + var states = { + ASCII: 0, + Roman: 1, + jis0208: 2 + }; + var /** @type {number} */ iso2022jp_state = states.ASCII; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream and iso-2022-jp encoder + // state is not ASCII, prepend code point to stream, set + // iso-2022-jp encoder state to ASCII, and return three bytes + // 0x1B 0x28 0x42. + if (code_point === end_of_stream && + iso2022jp_state !== states.ASCII) { + stream.prepend(code_point); + iso2022jp_state = states.ASCII; + return [0x1B, 0x28, 0x42]; + } + + // 2. If code point is end-of-stream and iso-2022-jp encoder + // state is ASCII, return finished. + if (code_point === end_of_stream && iso2022jp_state === states.ASCII) + return finished; + + // 3. If ISO-2022-JP encoder state is ASCII or Roman, and code + // point is U+000E, U+000F, or U+001B, return error with U+FFFD. + if ((iso2022jp_state === states.ASCII || + iso2022jp_state === states.Roman) && + (code_point === 0x000E || code_point === 0x000F || + code_point === 0x001B)) { + return encoderError(0xFFFD); + } + + // 4. If iso-2022-jp encoder state is ASCII and code point is an + // ASCII code point, return a byte whose value is code point. + if (iso2022jp_state === states.ASCII && + isASCIICodePoint(code_point)) + return code_point; + + // 5. If iso-2022-jp encoder state is Roman and code point is an + // ASCII code point, excluding U+005C and U+007E, or is U+00A5 + // or U+203E, run these substeps: + if (iso2022jp_state === states.Roman && + ((isASCIICodePoint(code_point) && + code_point !== 0x005C && code_point !== 0x007E) || + (code_point == 0x00A5 || code_point == 0x203E))) { + + // 1. If code point is an ASCII code point, return a byte + // whose value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 2. If code point is U+00A5, return byte 0x5C. + if (code_point === 0x00A5) + return 0x5C; + + // 3. If code point is U+203E, return byte 0x7E. + if (code_point === 0x203E) + return 0x7E; + } + + // 6. If code point is an ASCII code point, and iso-2022-jp + // encoder state is not ASCII, prepend code point to stream, set + // iso-2022-jp encoder state to ASCII, and return three bytes + // 0x1B 0x28 0x42. + if (isASCIICodePoint(code_point) && + iso2022jp_state !== states.ASCII) { + stream.prepend(code_point); + iso2022jp_state = states.ASCII; + return [0x1B, 0x28, 0x42]; + } + + // 7. If code point is either U+00A5 or U+203E, and iso-2022-jp + // encoder state is not Roman, prepend code point to stream, set + // iso-2022-jp encoder state to Roman, and return three bytes + // 0x1B 0x28 0x4A. + if ((code_point === 0x00A5 || code_point === 0x203E) && + iso2022jp_state !== states.Roman) { + stream.prepend(code_point); + iso2022jp_state = states.Roman; + return [0x1B, 0x28, 0x4A]; + } + + // 8. If code point is U+2212, set it to U+FF0D. + if (code_point === 0x2212) + code_point = 0xFF0D; + + // 9. Let pointer be the index pointer for code point in index + // jis0208. + var pointer = indexPointerFor(code_point, index('jis0208')); + + // 10. If pointer is null, return error with code point. + if (pointer === null) + return encoderError(code_point); + + // 11. If iso-2022-jp encoder state is not jis0208, prepend code + // point to stream, set iso-2022-jp encoder state to jis0208, + // and return three bytes 0x1B 0x24 0x42. + if (iso2022jp_state !== states.jis0208) { + stream.prepend(code_point); + iso2022jp_state = states.jis0208; + return [0x1B, 0x24, 0x42]; + } + + // 12. Let lead be floor(pointer / 94) + 0x21. + var lead = floor(pointer / 94) + 0x21; + + // 13. Let trail be pointer % 94 + 0x21. + var trail = pointer % 94 + 0x21; + + // 14. Return two bytes whose values are lead and trail. + return [lead, trail]; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['ISO-2022-JP'] = function(options) { + return new ISO2022JPEncoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['ISO-2022-JP'] = function(options) { + return new ISO2022JPDecoder(options); + }; + + // 13.3 Shift_JIS + + // 13.3.1 Shift_JIS decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function ShiftJISDecoder(options) { + var fatal = options.fatal; + // Shift_JIS's decoder has an associated Shift_JIS lead (initially + // 0x00). + var /** @type {number} */ Shift_JIS_lead = 0x00; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and Shift_JIS lead is not 0x00, + // set Shift_JIS lead to 0x00 and return error. + if (bite === end_of_stream && Shift_JIS_lead !== 0x00) { + Shift_JIS_lead = 0x00; + return decoderError(fatal); + } + + // 2. If byte is end-of-stream and Shift_JIS lead is 0x00, + // return finished. + if (bite === end_of_stream && Shift_JIS_lead === 0x00) + return finished; + + // 3. If Shift_JIS lead is not 0x00, let lead be Shift_JIS lead, + // let pointer be null, set Shift_JIS lead to 0x00, and then run + // these substeps: + if (Shift_JIS_lead !== 0x00) { + var lead = Shift_JIS_lead; + var pointer = null; + Shift_JIS_lead = 0x00; + + // 1. Let offset be 0x40, if byte is less than 0x7F, and 0x41 + // otherwise. + var offset = (bite < 0x7F) ? 0x40 : 0x41; + + // 2. Let lead offset be 0x81, if lead is less than 0xA0, and + // 0xC1 otherwise. + var lead_offset = (lead < 0xA0) ? 0x81 : 0xC1; + + // 3. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80 + // to 0xFC, inclusive, set pointer to (lead − lead offset) × + // 188 + byte − offset. + if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFC)) + pointer = (lead - lead_offset) * 188 + bite - offset; + + // 4. If pointer is in the range 8836 to 10715, inclusive, + // return a code point whose value is 0xE000 − 8836 + pointer. + if (inRange(pointer, 8836, 10715)) + return 0xE000 - 8836 + pointer; + + // 5. Let code point be null, if pointer is null, and the + // index code point for pointer in index jis0208 otherwise. + var code_point = (pointer === null) ? null : + indexCodePointFor(pointer, index('jis0208')); + + // 6. If code point is null and byte is an ASCII byte, prepend + // byte to stream. + if (code_point === null && isASCIIByte(bite)) + stream.prepend(bite); + + // 7. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 8. Return a code point whose value is code point. + return code_point; + } + + // 4. If byte is an ASCII byte or 0x80, return a code point + // whose value is byte. + if (isASCIIByte(bite) || bite === 0x80) + return bite; + + // 5. If byte is in the range 0xA1 to 0xDF, inclusive, return a + // code point whose value is 0xFF61 − 0xA1 + byte. + if (inRange(bite, 0xA1, 0xDF)) + return 0xFF61 - 0xA1 + bite; + + // 6. If byte is in the range 0x81 to 0x9F, inclusive, or 0xE0 + // to 0xFC, inclusive, set Shift_JIS lead to byte and return + // continue. + if (inRange(bite, 0x81, 0x9F) || inRange(bite, 0xE0, 0xFC)) { + Shift_JIS_lead = bite; + return null; + } + + // 7. Return error. + return decoderError(fatal); + }; + } + + // 13.3.2 Shift_JIS encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function ShiftJISEncoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point or U+0080, return a + // byte whose value is code point. + if (isASCIICodePoint(code_point) || code_point === 0x0080) + return code_point; + + // 3. If code point is U+00A5, return byte 0x5C. + if (code_point === 0x00A5) + return 0x5C; + + // 4. If code point is U+203E, return byte 0x7E. + if (code_point === 0x203E) + return 0x7E; + + // 5. If code point is in the range U+FF61 to U+FF9F, inclusive, + // return a byte whose value is code point − 0xFF61 + 0xA1. + if (inRange(code_point, 0xFF61, 0xFF9F)) + return code_point - 0xFF61 + 0xA1; + + // 6. If code point is U+2212, set it to U+FF0D. + if (code_point === 0x2212) + code_point = 0xFF0D; + + // 7. Let pointer be the index Shift_JIS pointer for code point. + var pointer = indexShiftJISPointerFor(code_point); + + // 8. If pointer is null, return error with code point. + if (pointer === null) + return encoderError(code_point); + + // 9. Let lead be floor(pointer / 188). + var lead = floor(pointer / 188); + + // 10. Let lead offset be 0x81, if lead is less than 0x1F, and + // 0xC1 otherwise. + var lead_offset = (lead < 0x1F) ? 0x81 : 0xC1; + + // 11. Let trail be pointer % 188. + var trail = pointer % 188; + + // 12. Let offset be 0x40, if trail is less than 0x3F, and 0x41 + // otherwise. + var offset = (trail < 0x3F) ? 0x40 : 0x41; + + // 13. Return two bytes whose values are lead + lead offset and + // trail + offset. + return [lead + lead_offset, trail + offset]; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['Shift_JIS'] = function(options) { + return new ShiftJISEncoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['Shift_JIS'] = function(options) { + return new ShiftJISDecoder(options); + }; + + // + // 14. Legacy multi-byte Korean encodings + // + + // 14.1 euc-kr + + // 14.1.1 euc-kr decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function EUCKRDecoder(options) { + var fatal = options.fatal; + + // euc-kr's decoder has an associated euc-kr lead (initially 0x00). + var /** @type {number} */ euckr_lead = 0x00; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and euc-kr lead is not 0x00, set + // euc-kr lead to 0x00 and return error. + if (bite === end_of_stream && euckr_lead !== 0) { + euckr_lead = 0x00; + return decoderError(fatal); + } + + // 2. If byte is end-of-stream and euc-kr lead is 0x00, return + // finished. + if (bite === end_of_stream && euckr_lead === 0) + return finished; + + // 3. If euc-kr lead is not 0x00, let lead be euc-kr lead, let + // pointer be null, set euc-kr lead to 0x00, and then run these + // substeps: + if (euckr_lead !== 0x00) { + var lead = euckr_lead; + var pointer = null; + euckr_lead = 0x00; + + // 1. If byte is in the range 0x41 to 0xFE, inclusive, set + // pointer to (lead − 0x81) × 190 + (byte − 0x41). + if (inRange(bite, 0x41, 0xFE)) + pointer = (lead - 0x81) * 190 + (bite - 0x41); + + // 2. Let code point be null, if pointer is null, and the + // index code point for pointer in index euc-kr otherwise. + var code_point = (pointer === null) + ? null : indexCodePointFor(pointer, index('euc-kr')); + + // 3. If code point is null and byte is an ASCII byte, prepend + // byte to stream. + if (pointer === null && isASCIIByte(bite)) + stream.prepend(bite); + + // 4. If code point is null, return error. + if (code_point === null) + return decoderError(fatal); + + // 5. Return a code point whose value is code point. + return code_point; + } + + // 4. If byte is an ASCII byte, return a code point whose value + // is byte. + if (isASCIIByte(bite)) + return bite; + + // 5. If byte is in the range 0x81 to 0xFE, inclusive, set + // euc-kr lead to byte and return continue. + if (inRange(bite, 0x81, 0xFE)) { + euckr_lead = bite; + return null; + } + + // 6. Return error. + return decoderError(fatal); + }; + } + + // 14.1.2 euc-kr encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function EUCKREncoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. Let pointer be the index pointer for code point in index + // euc-kr. + var pointer = indexPointerFor(code_point, index('euc-kr')); + + // 4. If pointer is null, return error with code point. + if (pointer === null) + return encoderError(code_point); + + // 5. Let lead be floor(pointer / 190) + 0x81. + var lead = floor(pointer / 190) + 0x81; + + // 6. Let trail be pointer % 190 + 0x41. + var trail = (pointer % 190) + 0x41; + + // 7. Return two bytes whose values are lead and trail. + return [lead, trail]; + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['EUC-KR'] = function(options) { + return new EUCKREncoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['EUC-KR'] = function(options) { + return new EUCKRDecoder(options); + }; + + + // + // 15. Legacy miscellaneous encodings + // + + // 15.1 replacement + + // Not needed - API throws RangeError + + // 15.2 Common infrastructure for utf-16be and utf-16le + + /** + * @param {number} code_unit + * @param {boolean} utf16be + * @return {!Array.} bytes + */ + function convertCodeUnitToBytes(code_unit, utf16be) { + // 1. Let byte1 be code unit >> 8. + var byte1 = code_unit >> 8; + + // 2. Let byte2 be code unit & 0x00FF. + var byte2 = code_unit & 0x00FF; + + // 3. Then return the bytes in order: + // utf-16be flag is set: byte1, then byte2. + if (utf16be) + return [byte1, byte2]; + // utf-16be flag is unset: byte2, then byte1. + return [byte2, byte1]; + } + + // 15.2.1 shared utf-16 decoder + /** + * @constructor + * @implements {Decoder} + * @param {boolean} utf16_be True if big-endian, false if little-endian. + * @param {{fatal: boolean}} options + */ + function UTF16Decoder(utf16_be, options) { + var fatal = options.fatal; + var /** @type {?number} */ utf16_lead_byte = null, + /** @type {?number} */ utf16_lead_surrogate = null; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream and either utf-16 lead byte or + // utf-16 lead surrogate is not null, set utf-16 lead byte and + // utf-16 lead surrogate to null, and return error. + if (bite === end_of_stream && (utf16_lead_byte !== null || + utf16_lead_surrogate !== null)) { + return decoderError(fatal); + } + + // 2. If byte is end-of-stream and utf-16 lead byte and utf-16 + // lead surrogate are null, return finished. + if (bite === end_of_stream && utf16_lead_byte === null && + utf16_lead_surrogate === null) { + return finished; + } + + // 3. If utf-16 lead byte is null, set utf-16 lead byte to byte + // and return continue. + if (utf16_lead_byte === null) { + utf16_lead_byte = bite; + return null; + } + + // 4. Let code unit be the result of: + var code_unit; + if (utf16_be) { + // utf-16be decoder flag is set + // (utf-16 lead byte << 8) + byte. + code_unit = (utf16_lead_byte << 8) + bite; + } else { + // utf-16be decoder flag is unset + // (byte << 8) + utf-16 lead byte. + code_unit = (bite << 8) + utf16_lead_byte; + } + // Then set utf-16 lead byte to null. + utf16_lead_byte = null; + + // 5. If utf-16 lead surrogate is not null, let lead surrogate + // be utf-16 lead surrogate, set utf-16 lead surrogate to null, + // and then run these substeps: + if (utf16_lead_surrogate !== null) { + var lead_surrogate = utf16_lead_surrogate; + utf16_lead_surrogate = null; + + // 1. If code unit is in the range U+DC00 to U+DFFF, + // inclusive, return a code point whose value is 0x10000 + + // ((lead surrogate − 0xD800) << 10) + (code unit − 0xDC00). + if (inRange(code_unit, 0xDC00, 0xDFFF)) { + return 0x10000 + (lead_surrogate - 0xD800) * 0x400 + + (code_unit - 0xDC00); + } + + // 2. Prepend the sequence resulting of converting code unit + // to bytes using utf-16be decoder flag to stream and return + // error. + stream.prepend(convertCodeUnitToBytes(code_unit, utf16_be)); + return decoderError(fatal); + } + + // 6. If code unit is in the range U+D800 to U+DBFF, inclusive, + // set utf-16 lead surrogate to code unit and return continue. + if (inRange(code_unit, 0xD800, 0xDBFF)) { + utf16_lead_surrogate = code_unit; + return null; + } + + // 7. If code unit is in the range U+DC00 to U+DFFF, inclusive, + // return error. + if (inRange(code_unit, 0xDC00, 0xDFFF)) + return decoderError(fatal); + + // 8. Return code point code unit. + return code_unit; + }; + } + + // 15.2.2 shared utf-16 encoder + /** + * @constructor + * @implements {Encoder} + * @param {boolean} utf16_be True if big-endian, false if little-endian. + * @param {{fatal: boolean}} options + */ + function UTF16Encoder(utf16_be, options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1. If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is in the range U+0000 to U+FFFF, inclusive, + // return the sequence resulting of converting code point to + // bytes using utf-16be encoder flag. + if (inRange(code_point, 0x0000, 0xFFFF)) + return convertCodeUnitToBytes(code_point, utf16_be); + + // 3. Let lead be ((code point − 0x10000) >> 10) + 0xD800, + // converted to bytes using utf-16be encoder flag. + var lead = convertCodeUnitToBytes( + ((code_point - 0x10000) >> 10) + 0xD800, utf16_be); + + // 4. Let trail be ((code point − 0x10000) & 0x3FF) + 0xDC00, + // converted to bytes using utf-16be encoder flag. + var trail = convertCodeUnitToBytes( + ((code_point - 0x10000) & 0x3FF) + 0xDC00, utf16_be); + + // 5. Return a byte sequence of lead followed by trail. + return lead.concat(trail); + }; + } + + // 15.3 utf-16be + // 15.3.1 utf-16be decoder + /** @param {{fatal: boolean}} options */ + encoders['UTF-16BE'] = function(options) { + return new UTF16Encoder(true, options); + }; + // 15.3.2 utf-16be encoder + /** @param {{fatal: boolean}} options */ + decoders['UTF-16BE'] = function(options) { + return new UTF16Decoder(true, options); + }; + + // 15.4 utf-16le + // 15.4.1 utf-16le decoder + /** @param {{fatal: boolean}} options */ + encoders['UTF-16LE'] = function(options) { + return new UTF16Encoder(false, options); + }; + // 15.4.2 utf-16le encoder + /** @param {{fatal: boolean}} options */ + decoders['UTF-16LE'] = function(options) { + return new UTF16Decoder(false, options); + }; + + // 15.5 x-user-defined + + // 15.5.1 x-user-defined decoder + /** + * @constructor + * @implements {Decoder} + * @param {{fatal: boolean}} options + */ + function XUserDefinedDecoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream The stream of bytes being decoded. + * @param {number} bite The next byte read from the stream. + * @return {?(number|!Array.)} The next code point(s) + * decoded, or null if not enough data exists in the input + * stream to decode a complete code point. + */ + this.handler = function(stream, bite) { + // 1. If byte is end-of-stream, return finished. + if (bite === end_of_stream) + return finished; + + // 2. If byte is an ASCII byte, return a code point whose value + // is byte. + if (isASCIIByte(bite)) + return bite; + + // 3. Return a code point whose value is 0xF780 + byte − 0x80. + return 0xF780 + bite - 0x80; + }; + } + + // 15.5.2 x-user-defined encoder + /** + * @constructor + * @implements {Encoder} + * @param {{fatal: boolean}} options + */ + function XUserDefinedEncoder(options) { + var fatal = options.fatal; + /** + * @param {Stream} stream Input stream. + * @param {number} code_point Next code point read from the stream. + * @return {(number|!Array.)} Byte(s) to emit. + */ + this.handler = function(stream, code_point) { + // 1.If code point is end-of-stream, return finished. + if (code_point === end_of_stream) + return finished; + + // 2. If code point is an ASCII code point, return a byte whose + // value is code point. + if (isASCIICodePoint(code_point)) + return code_point; + + // 3. If code point is in the range U+F780 to U+F7FF, inclusive, + // return a byte whose value is code point − 0xF780 + 0x80. + if (inRange(code_point, 0xF780, 0xF7FF)) + return code_point - 0xF780 + 0x80; + + // 4. Return error with code point. + return encoderError(code_point); + }; + } + + /** @param {{fatal: boolean}} options */ + encoders['x-user-defined'] = function(options) { + return new XUserDefinedEncoder(options); + }; + /** @param {{fatal: boolean}} options */ + decoders['x-user-defined'] = function(options) { + return new XUserDefinedDecoder(options); + }; + + if (typeof module !== "undefined" && module.exports) { + module.exports = { + TextEncoder: TextEncoder, + TextDecoder: TextDecoder, + EncodingIndexes: require("./encoding-indexes.js")["encoding-indexes"] + }; + } + +// For strict environments where `this` inside the global scope +// is `undefined`, take a pure object instead +}(this || {})); diff --git a/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/package.json b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/package.json new file mode 100644 index 000000000..ffc3155aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/bson/vendor/text-encoding/package.json @@ -0,0 +1,37 @@ +{ + "name": "text-encoding", + "author": "Joshua Bell ", + "contributors": [ + "Joshua Bell ", + "Rick Eyre ", + "Eugen Podaru ", + "Filip Dupanović ", + "Anne van Kesteren ", + "Author: Francis Avila ", + "Michael J. Ryan ", + "Pierre Queinnec ", + "Zack Weinberg " + ], + "version": "0.7.0", + "description": "Polyfill for the Encoding Living Standard's API.", + "main": "index.js", + "files": [ + "index.js", + "lib/encoding.js", + "lib/encoding-indexes.js" + ], + "repository": { + "type": "git", + "url": "https://github.com/inexorabletash/text-encoding.git" + }, + "keywords": [ + "encoding", + "decoding", + "living standard" + ], + "bugs": { + "url": "https://github.com/inexorabletash/text-encoding/issues" + }, + "homepage": "https://github.com/inexorabletash/text-encoding", + "license": "(Unlicense OR Apache-2.0)" +} diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/.npmignore b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/.npmignore new file mode 100644 index 000000000..34e4f5c29 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/.npmignore @@ -0,0 +1,2 @@ +.*.sw[mnop] +node_modules/ diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/.travis.yml b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/.travis.yml new file mode 100644 index 000000000..78e1c0146 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/.travis.yml @@ -0,0 +1,4 @@ +language: node_js +node_js: +- "0.11" +- "0.10" diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/LICENSE.txt b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/LICENSE.txt new file mode 100644 index 000000000..9a064f3f4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/LICENSE.txt @@ -0,0 +1,12 @@ +Copyright (c) 2013, GoInstant Inc., a salesforce.com company +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + +* Neither the name of salesforce.com, nor GoInstant, nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/README.md b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/README.md new file mode 100644 index 000000000..4f227f58b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/README.md @@ -0,0 +1,50 @@ +# buffer-equal-constant-time + +Constant-time `Buffer` comparison for node.js. Should work with browserify too. + +[![Build Status](https://travis-ci.org/goinstant/buffer-equal-constant-time.png?branch=master)](https://travis-ci.org/goinstant/buffer-equal-constant-time) + +```sh + npm install buffer-equal-constant-time +``` + +# Usage + +```js + var bufferEq = require('buffer-equal-constant-time'); + + var a = new Buffer('asdf'); + var b = new Buffer('asdf'); + if (bufferEq(a,b)) { + // the same! + } else { + // different in at least one byte! + } +``` + +If you'd like to install an `.equal()` method onto the node.js `Buffer` and +`SlowBuffer` prototypes: + +```js + require('buffer-equal-constant-time').install(); + + var a = new Buffer('asdf'); + var b = new Buffer('asdf'); + if (a.equal(b)) { + // the same! + } else { + // different in at least one byte! + } +``` + +To get rid of the installed `.equal()` method, call `.restore()`: + +```js + require('buffer-equal-constant-time').restore(); +``` + +# Legal + +© 2013 GoInstant Inc., a salesforce.com company + +Licensed under the BSD 3-clause license. diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/index.js b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/index.js new file mode 100644 index 000000000..5462c1f83 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/index.js @@ -0,0 +1,41 @@ +/*jshint node:true */ +'use strict'; +var Buffer = require('buffer').Buffer; // browserify +var SlowBuffer = require('buffer').SlowBuffer; + +module.exports = bufferEq; + +function bufferEq(a, b) { + + // shortcutting on type is necessary for correctness + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + return false; + } + + // buffer sizes should be well-known information, so despite this + // shortcutting, it doesn't leak any information about the *contents* of the + // buffers. + if (a.length !== b.length) { + return false; + } + + var c = 0; + for (var i = 0; i < a.length; i++) { + /*jshint bitwise:false */ + c |= a[i] ^ b[i]; // XOR + } + return c === 0; +} + +bufferEq.install = function() { + Buffer.prototype.equal = SlowBuffer.prototype.equal = function equal(that) { + return bufferEq(this, that); + }; +}; + +var origBufEqual = Buffer.prototype.equal; +var origSlowBufEqual = SlowBuffer.prototype.equal; +bufferEq.restore = function() { + Buffer.prototype.equal = origBufEqual; + SlowBuffer.prototype.equal = origSlowBufEqual; +}; diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/package.json b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/package.json new file mode 100644 index 000000000..17c7de22c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/package.json @@ -0,0 +1,21 @@ +{ + "name": "buffer-equal-constant-time", + "version": "1.0.1", + "description": "Constant-time comparison of Buffers", + "main": "index.js", + "scripts": { + "test": "mocha test.js" + }, + "repository": "git@github.com:goinstant/buffer-equal-constant-time.git", + "keywords": [ + "buffer", + "equal", + "constant-time", + "crypto" + ], + "author": "GoInstant Inc., a salesforce.com company", + "license": "BSD-3-Clause", + "devDependencies": { + "mocha": "~1.15.1" + } +} diff --git a/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/test.js b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/test.js new file mode 100644 index 000000000..0bc972d84 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/buffer-equal-constant-time/test.js @@ -0,0 +1,42 @@ +/*jshint node:true */ +'use strict'; + +var bufferEq = require('./index'); +var assert = require('assert'); + +describe('buffer-equal-constant-time', function() { + var a = new Buffer('asdfasdf123456'); + var b = new Buffer('asdfasdf123456'); + var c = new Buffer('asdfasdf'); + + describe('bufferEq', function() { + it('says a == b', function() { + assert.strictEqual(bufferEq(a, b), true); + }); + + it('says a != c', function() { + assert.strictEqual(bufferEq(a, c), false); + }); + }); + + describe('install/restore', function() { + before(function() { + bufferEq.install(); + }); + after(function() { + bufferEq.restore(); + }); + + it('installed an .equal method', function() { + var SlowBuffer = require('buffer').SlowBuffer; + assert.ok(Buffer.prototype.equal); + assert.ok(SlowBuffer.prototype.equal); + }); + + it('infected existing Buffers', function() { + assert.strictEqual(a.equal(b), true); + assert.strictEqual(a.equal(c), false); + }); + }); + +}); diff --git a/week-3/04-course-app-hard/node_modules/cors/CONTRIBUTING.md b/week-3/04-course-app-hard/node_modules/cors/CONTRIBUTING.md new file mode 100644 index 000000000..591b09a13 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/cors/CONTRIBUTING.md @@ -0,0 +1,33 @@ +# contributing to `cors` + +CORS is a node.js package for providing a [connect](http://www.senchalabs.org/connect/)/[express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options. Learn more about the project in [the README](README.md). + +## The CORS Spec + +[http://www.w3.org/TR/cors/](http://www.w3.org/TR/cors/) + +## Pull Requests Welcome + +* Include `'use strict';` in every javascript file. +* 2 space indentation. +* Please run the testing steps below before submitting. + +## Testing + +```bash +$ npm install +$ npm test +``` + +## Interactive Testing Harness + +[http://node-cors-client.herokuapp.com](http://node-cors-client.herokuapp.com) + +Related git repositories: + +* [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server) +* [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client) + +## License + +[MIT License](http://www.opensource.org/licenses/mit-license.php) diff --git a/week-3/04-course-app-hard/node_modules/cors/HISTORY.md b/week-3/04-course-app-hard/node_modules/cors/HISTORY.md new file mode 100644 index 000000000..5762bce92 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/cors/HISTORY.md @@ -0,0 +1,58 @@ +2.8.5 / 2018-11-04 +================== + + * Fix setting `maxAge` option to `0` + +2.8.4 / 2017-07-12 +================== + + * Work-around Safari bug in default pre-flight response + +2.8.3 / 2017-03-29 +================== + + * Fix error when options delegate missing `methods` option + +2.8.2 / 2017-03-28 +================== + + * Fix error when frozen options are passed + * Send "Vary: Origin" when using regular expressions + * Send "Vary: Access-Control-Request-Headers" when dynamic `allowedHeaders` + +2.8.1 / 2016-09-08 +================== + +This release only changed documentation. + +2.8.0 / 2016-08-23 +================== + + * Add `optionsSuccessStatus` option + +2.7.2 / 2016-08-23 +================== + + * Fix error when Node.js running in strict mode + +2.7.1 / 2015-05-28 +================== + + * Move module into expressjs organization + +2.7.0 / 2015-05-28 +================== + + * Allow array of matching condition as `origin` option + * Allow regular expression as `origin` option + +2.6.1 / 2015-05-28 +================== + + * Update `license` in package.json + +2.6.0 / 2015-04-27 +================== + + * Add `preflightContinue` option + * Fix "Vary: Origin" header added for "*" diff --git a/week-3/04-course-app-hard/node_modules/cors/LICENSE b/week-3/04-course-app-hard/node_modules/cors/LICENSE new file mode 100644 index 000000000..fd10c843f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/cors/LICENSE @@ -0,0 +1,22 @@ +(The MIT License) + +Copyright (c) 2013 Troy Goode + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/cors/README.md b/week-3/04-course-app-hard/node_modules/cors/README.md new file mode 100644 index 000000000..732b847ed --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/cors/README.md @@ -0,0 +1,243 @@ +# cors + +[![NPM Version][npm-image]][npm-url] +[![NPM Downloads][downloads-image]][downloads-url] +[![Build Status][travis-image]][travis-url] +[![Test Coverage][coveralls-image]][coveralls-url] + +CORS is a node.js package for providing a [Connect](http://www.senchalabs.org/connect/)/[Express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options. + +**[Follow me (@troygoode) on Twitter!](https://twitter.com/intent/user?screen_name=troygoode)** + +* [Installation](#installation) +* [Usage](#usage) + * [Simple Usage](#simple-usage-enable-all-cors-requests) + * [Enable CORS for a Single Route](#enable-cors-for-a-single-route) + * [Configuring CORS](#configuring-cors) + * [Configuring CORS Asynchronously](#configuring-cors-asynchronously) + * [Enabling CORS Pre-Flight](#enabling-cors-pre-flight) +* [Configuration Options](#configuration-options) +* [Demo](#demo) +* [License](#license) +* [Author](#author) + +## Installation + +This is a [Node.js](https://nodejs.org/en/) module available through the +[npm registry](https://www.npmjs.com/). Installation is done using the +[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): + +```sh +$ npm install cors +``` + +## Usage + +### Simple Usage (Enable *All* CORS Requests) + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +app.use(cors()) + +app.get('/products/:id', function (req, res, next) { + res.json({msg: 'This is CORS-enabled for all origins!'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +### Enable CORS for a Single Route + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +app.get('/products/:id', cors(), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for a Single Route'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +### Configuring CORS + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +var corsOptions = { + origin: 'http://example.com', + optionsSuccessStatus: 200 // some legacy browsers (IE11, various SmartTVs) choke on 204 +} + +app.get('/products/:id', cors(corsOptions), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for only example.com.'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +### Configuring CORS w/ Dynamic Origin + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +var whitelist = ['http://example1.com', 'http://example2.com'] +var corsOptions = { + origin: function (origin, callback) { + if (whitelist.indexOf(origin) !== -1) { + callback(null, true) + } else { + callback(new Error('Not allowed by CORS')) + } + } +} + +app.get('/products/:id', cors(corsOptions), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for a whitelisted domain.'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +If you do not want to block REST tools or server-to-server requests, +add a `!origin` check in the origin function like so: + +```javascript +var corsOptions = { + origin: function (origin, callback) { + if (whitelist.indexOf(origin) !== -1 || !origin) { + callback(null, true) + } else { + callback(new Error('Not allowed by CORS')) + } + } +} +``` + +### Enabling CORS Pre-Flight + +Certain CORS requests are considered 'complex' and require an initial +`OPTIONS` request (called the "pre-flight request"). An example of a +'complex' CORS request is one that uses an HTTP verb other than +GET/HEAD/POST (such as DELETE) or that uses custom headers. To enable +pre-flighting, you must add a new OPTIONS handler for the route you want +to support: + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +app.options('/products/:id', cors()) // enable pre-flight request for DELETE request +app.del('/products/:id', cors(), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for all origins!'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +You can also enable pre-flight across-the-board like so: + +```javascript +app.options('*', cors()) // include before other routes +``` + +### Configuring CORS Asynchronously + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +var whitelist = ['http://example1.com', 'http://example2.com'] +var corsOptionsDelegate = function (req, callback) { + var corsOptions; + if (whitelist.indexOf(req.header('Origin')) !== -1) { + corsOptions = { origin: true } // reflect (enable) the requested origin in the CORS response + } else { + corsOptions = { origin: false } // disable CORS for this request + } + callback(null, corsOptions) // callback expects two parameters: error and options +} + +app.get('/products/:id', cors(corsOptionsDelegate), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for a whitelisted domain.'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +## Configuration Options + +* `origin`: Configures the **Access-Control-Allow-Origin** CORS header. Possible values: + - `Boolean` - set `origin` to `true` to reflect the [request origin](http://tools.ietf.org/html/draft-abarth-origin-09), as defined by `req.header('Origin')`, or set it to `false` to disable CORS. + - `String` - set `origin` to a specific origin. For example if you set it to `"http://example.com"` only requests from "http://example.com" will be allowed. + - `RegExp` - set `origin` to a regular expression pattern which will be used to test the request origin. If it's a match, the request origin will be reflected. For example the pattern `/example\.com$/` will reflect any request that is coming from an origin ending with "example.com". + - `Array` - set `origin` to an array of valid origins. Each origin can be a `String` or a `RegExp`. For example `["http://example1.com", /\.example2\.com$/]` will accept any request from "http://example1.com" or from a subdomain of "example2.com". + - `Function` - set `origin` to a function implementing some custom logic. The function takes the request origin as the first parameter and a callback (which expects the signature `err [object], allow [bool]`) as the second. +* `methods`: Configures the **Access-Control-Allow-Methods** CORS header. Expects a comma-delimited string (ex: 'GET,PUT,POST') or an array (ex: `['GET', 'PUT', 'POST']`). +* `allowedHeaders`: Configures the **Access-Control-Allow-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Type,Authorization') or an array (ex: `['Content-Type', 'Authorization']`). If not specified, defaults to reflecting the headers specified in the request's **Access-Control-Request-Headers** header. +* `exposedHeaders`: Configures the **Access-Control-Expose-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Range,X-Content-Range') or an array (ex: `['Content-Range', 'X-Content-Range']`). If not specified, no custom headers are exposed. +* `credentials`: Configures the **Access-Control-Allow-Credentials** CORS header. Set to `true` to pass the header, otherwise it is omitted. +* `maxAge`: Configures the **Access-Control-Max-Age** CORS header. Set to an integer to pass the header, otherwise it is omitted. +* `preflightContinue`: Pass the CORS preflight response to the next handler. +* `optionsSuccessStatus`: Provides a status code to use for successful `OPTIONS` requests, since some legacy browsers (IE11, various SmartTVs) choke on `204`. + +The default configuration is the equivalent of: + +```json +{ + "origin": "*", + "methods": "GET,HEAD,PUT,PATCH,POST,DELETE", + "preflightContinue": false, + "optionsSuccessStatus": 204 +} +``` + +For details on the effect of each CORS header, read [this](http://www.html5rocks.com/en/tutorials/cors/) article on HTML5 Rocks. + +## Demo + +A demo that illustrates CORS working (and not working) using jQuery is available here: [http://node-cors-client.herokuapp.com/](http://node-cors-client.herokuapp.com/) + +Code for that demo can be found here: + +* Client: [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client) +* Server: [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server) + +## License + +[MIT License](http://www.opensource.org/licenses/mit-license.php) + +## Author + +[Troy Goode](https://github.com/TroyGoode) ([troygoode@gmail.com](mailto:troygoode@gmail.com)) + +[coveralls-image]: https://img.shields.io/coveralls/expressjs/cors/master.svg +[coveralls-url]: https://coveralls.io/r/expressjs/cors?branch=master +[downloads-image]: https://img.shields.io/npm/dm/cors.svg +[downloads-url]: https://npmjs.org/package/cors +[npm-image]: https://img.shields.io/npm/v/cors.svg +[npm-url]: https://npmjs.org/package/cors +[travis-image]: https://img.shields.io/travis/expressjs/cors/master.svg +[travis-url]: https://travis-ci.org/expressjs/cors diff --git a/week-3/04-course-app-hard/node_modules/cors/lib/index.js b/week-3/04-course-app-hard/node_modules/cors/lib/index.js new file mode 100644 index 000000000..5475aecd6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/cors/lib/index.js @@ -0,0 +1,238 @@ +(function () { + + 'use strict'; + + var assign = require('object-assign'); + var vary = require('vary'); + + var defaults = { + origin: '*', + methods: 'GET,HEAD,PUT,PATCH,POST,DELETE', + preflightContinue: false, + optionsSuccessStatus: 204 + }; + + function isString(s) { + return typeof s === 'string' || s instanceof String; + } + + function isOriginAllowed(origin, allowedOrigin) { + if (Array.isArray(allowedOrigin)) { + for (var i = 0; i < allowedOrigin.length; ++i) { + if (isOriginAllowed(origin, allowedOrigin[i])) { + return true; + } + } + return false; + } else if (isString(allowedOrigin)) { + return origin === allowedOrigin; + } else if (allowedOrigin instanceof RegExp) { + return allowedOrigin.test(origin); + } else { + return !!allowedOrigin; + } + } + + function configureOrigin(options, req) { + var requestOrigin = req.headers.origin, + headers = [], + isAllowed; + + if (!options.origin || options.origin === '*') { + // allow any origin + headers.push([{ + key: 'Access-Control-Allow-Origin', + value: '*' + }]); + } else if (isString(options.origin)) { + // fixed origin + headers.push([{ + key: 'Access-Control-Allow-Origin', + value: options.origin + }]); + headers.push([{ + key: 'Vary', + value: 'Origin' + }]); + } else { + isAllowed = isOriginAllowed(requestOrigin, options.origin); + // reflect origin + headers.push([{ + key: 'Access-Control-Allow-Origin', + value: isAllowed ? requestOrigin : false + }]); + headers.push([{ + key: 'Vary', + value: 'Origin' + }]); + } + + return headers; + } + + function configureMethods(options) { + var methods = options.methods; + if (methods.join) { + methods = options.methods.join(','); // .methods is an array, so turn it into a string + } + return { + key: 'Access-Control-Allow-Methods', + value: methods + }; + } + + function configureCredentials(options) { + if (options.credentials === true) { + return { + key: 'Access-Control-Allow-Credentials', + value: 'true' + }; + } + return null; + } + + function configureAllowedHeaders(options, req) { + var allowedHeaders = options.allowedHeaders || options.headers; + var headers = []; + + if (!allowedHeaders) { + allowedHeaders = req.headers['access-control-request-headers']; // .headers wasn't specified, so reflect the request headers + headers.push([{ + key: 'Vary', + value: 'Access-Control-Request-Headers' + }]); + } else if (allowedHeaders.join) { + allowedHeaders = allowedHeaders.join(','); // .headers is an array, so turn it into a string + } + if (allowedHeaders && allowedHeaders.length) { + headers.push([{ + key: 'Access-Control-Allow-Headers', + value: allowedHeaders + }]); + } + + return headers; + } + + function configureExposedHeaders(options) { + var headers = options.exposedHeaders; + if (!headers) { + return null; + } else if (headers.join) { + headers = headers.join(','); // .headers is an array, so turn it into a string + } + if (headers && headers.length) { + return { + key: 'Access-Control-Expose-Headers', + value: headers + }; + } + return null; + } + + function configureMaxAge(options) { + var maxAge = (typeof options.maxAge === 'number' || options.maxAge) && options.maxAge.toString() + if (maxAge && maxAge.length) { + return { + key: 'Access-Control-Max-Age', + value: maxAge + }; + } + return null; + } + + function applyHeaders(headers, res) { + for (var i = 0, n = headers.length; i < n; i++) { + var header = headers[i]; + if (header) { + if (Array.isArray(header)) { + applyHeaders(header, res); + } else if (header.key === 'Vary' && header.value) { + vary(res, header.value); + } else if (header.value) { + res.setHeader(header.key, header.value); + } + } + } + } + + function cors(options, req, res, next) { + var headers = [], + method = req.method && req.method.toUpperCase && req.method.toUpperCase(); + + if (method === 'OPTIONS') { + // preflight + headers.push(configureOrigin(options, req)); + headers.push(configureCredentials(options, req)); + headers.push(configureMethods(options, req)); + headers.push(configureAllowedHeaders(options, req)); + headers.push(configureMaxAge(options, req)); + headers.push(configureExposedHeaders(options, req)); + applyHeaders(headers, res); + + if (options.preflightContinue) { + next(); + } else { + // Safari (and potentially other browsers) need content-length 0, + // for 204 or they just hang waiting for a body + res.statusCode = options.optionsSuccessStatus; + res.setHeader('Content-Length', '0'); + res.end(); + } + } else { + // actual response + headers.push(configureOrigin(options, req)); + headers.push(configureCredentials(options, req)); + headers.push(configureExposedHeaders(options, req)); + applyHeaders(headers, res); + next(); + } + } + + function middlewareWrapper(o) { + // if options are static (either via defaults or custom options passed in), wrap in a function + var optionsCallback = null; + if (typeof o === 'function') { + optionsCallback = o; + } else { + optionsCallback = function (req, cb) { + cb(null, o); + }; + } + + return function corsMiddleware(req, res, next) { + optionsCallback(req, function (err, options) { + if (err) { + next(err); + } else { + var corsOptions = assign({}, defaults, options); + var originCallback = null; + if (corsOptions.origin && typeof corsOptions.origin === 'function') { + originCallback = corsOptions.origin; + } else if (corsOptions.origin) { + originCallback = function (origin, cb) { + cb(null, corsOptions.origin); + }; + } + + if (originCallback) { + originCallback(req.headers.origin, function (err2, origin) { + if (err2 || !origin) { + next(err2); + } else { + corsOptions.origin = origin; + cors(corsOptions, req, res, next); + } + }); + } else { + next(); + } + } + }); + }; + } + + // can pass either an options hash, an options delegate, or nothing + module.exports = middlewareWrapper; + +}()); diff --git a/week-3/04-course-app-hard/node_modules/cors/package.json b/week-3/04-course-app-hard/node_modules/cors/package.json new file mode 100644 index 000000000..ff37d9843 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/cors/package.json @@ -0,0 +1,41 @@ +{ + "name": "cors", + "description": "Node.js CORS middleware", + "version": "2.8.5", + "author": "Troy Goode (https://github.com/troygoode/)", + "license": "MIT", + "keywords": [ + "cors", + "express", + "connect", + "middleware" + ], + "repository": "expressjs/cors", + "main": "./lib/index.js", + "dependencies": { + "object-assign": "^4", + "vary": "^1" + }, + "devDependencies": { + "after": "0.8.2", + "eslint": "2.13.1", + "express": "4.16.3", + "mocha": "5.2.0", + "nyc": "13.1.0", + "supertest": "3.3.0" + }, + "files": [ + "lib/index.js", + "CONTRIBUTING.md", + "HISTORY.md", + "LICENSE", + "README.md" + ], + "engines": { + "node": ">= 0.10" + }, + "scripts": { + "test": "npm run lint && nyc --reporter=html --reporter=text mocha --require test/support/env", + "lint": "eslint lib test" + } +} diff --git a/week-3/04-course-app-hard/node_modules/debug/LICENSE b/week-3/04-course-app-hard/node_modules/debug/LICENSE new file mode 100644 index 000000000..1a9820e26 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/LICENSE @@ -0,0 +1,20 @@ +(The MIT License) + +Copyright (c) 2014-2017 TJ Holowaychuk +Copyright (c) 2018-2021 Josh Junon + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software +and associated documentation files (the 'Software'), to deal in the Software without restriction, +including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial +portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT +LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + diff --git a/week-3/04-course-app-hard/node_modules/debug/README.md b/week-3/04-course-app-hard/node_modules/debug/README.md new file mode 100644 index 000000000..e9c3e047c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/README.md @@ -0,0 +1,481 @@ +# debug +[![Build Status](https://travis-ci.org/debug-js/debug.svg?branch=master)](https://travis-ci.org/debug-js/debug) [![Coverage Status](https://coveralls.io/repos/github/debug-js/debug/badge.svg?branch=master)](https://coveralls.io/github/debug-js/debug?branch=master) [![Slack](https://visionmedia-community-slackin.now.sh/badge.svg)](https://visionmedia-community-slackin.now.sh/) [![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers) +[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors) + + + +A tiny JavaScript debugging utility modelled after Node.js core's debugging +technique. Works in Node.js and web browsers. + +## Installation + +```bash +$ npm install debug +``` + +## Usage + +`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole. + +Example [_app.js_](./examples/node/app.js): + +```js +var debug = require('debug')('http') + , http = require('http') + , name = 'My App'; + +// fake app + +debug('booting %o', name); + +http.createServer(function(req, res){ + debug(req.method + ' ' + req.url); + res.end('hello\n'); +}).listen(3000, function(){ + debug('listening'); +}); + +// fake worker of some kind + +require('./worker'); +``` + +Example [_worker.js_](./examples/node/worker.js): + +```js +var a = require('debug')('worker:a') + , b = require('debug')('worker:b'); + +function work() { + a('doing lots of uninteresting work'); + setTimeout(work, Math.random() * 1000); +} + +work(); + +function workb() { + b('doing some work'); + setTimeout(workb, Math.random() * 2000); +} + +workb(); +``` + +The `DEBUG` environment variable is then used to enable these based on space or +comma-delimited names. + +Here are some examples: + +screen shot 2017-08-08 at 12 53 04 pm +screen shot 2017-08-08 at 12 53 38 pm +screen shot 2017-08-08 at 12 53 25 pm + +#### Windows command prompt notes + +##### CMD + +On Windows the environment variable is set using the `set` command. + +```cmd +set DEBUG=*,-not_this +``` + +Example: + +```cmd +set DEBUG=* & node app.js +``` + +##### PowerShell (VS Code default) + +PowerShell uses different syntax to set environment variables. + +```cmd +$env:DEBUG = "*,-not_this" +``` + +Example: + +```cmd +$env:DEBUG='app';node app.js +``` + +Then, run the program to be debugged as usual. + +npm script example: +```js + "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js", +``` + +## Namespace Colors + +Every debug instance has a color generated for it based on its namespace name. +This helps when visually parsing the debug output to identify which debug instance +a debug line belongs to. + +#### Node.js + +In Node.js, colors are enabled when stderr is a TTY. You also _should_ install +the [`supports-color`](https://npmjs.org/supports-color) module alongside debug, +otherwise debug will only use a small handful of basic colors. + + + +#### Web Browser + +Colors are also enabled on "Web Inspectors" that understand the `%c` formatting +option. These are WebKit web inspectors, Firefox ([since version +31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/)) +and the Firebug plugin for Firefox (any version). + + + + +## Millisecond diff + +When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls. + + + +When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below: + + + + +## Conventions + +If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser". If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output. + +## Wildcards + +The `*` character may be used as a wildcard. Suppose for example your library has +debuggers named "connect:bodyParser", "connect:compress", "connect:session", +instead of listing all three with +`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do +`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`. + +You can also exclude specific debuggers by prefixing them with a "-" character. +For example, `DEBUG=*,-connect:*` would include all debuggers except those +starting with "connect:". + +## Environment Variables + +When running through Node.js, you can set a few environment variables that will +change the behavior of the debug logging: + +| Name | Purpose | +|-----------|-------------------------------------------------| +| `DEBUG` | Enables/disables specific debugging namespaces. | +| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). | +| `DEBUG_COLORS`| Whether or not to use colors in the debug output. | +| `DEBUG_DEPTH` | Object inspection depth. | +| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. | + + +__Note:__ The environment variables beginning with `DEBUG_` end up being +converted into an Options object that gets used with `%o`/`%O` formatters. +See the Node.js documentation for +[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options) +for the complete list. + +## Formatters + +Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting. +Below are the officially supported formatters: + +| Formatter | Representation | +|-----------|----------------| +| `%O` | Pretty-print an Object on multiple lines. | +| `%o` | Pretty-print an Object all on a single line. | +| `%s` | String. | +| `%d` | Number (both integer and float). | +| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. | +| `%%` | Single percent sign ('%'). This does not consume an argument. | + + +### Custom formatters + +You can add custom formatters by extending the `debug.formatters` object. +For example, if you wanted to add support for rendering a Buffer as hex with +`%h`, you could do something like: + +```js +const createDebug = require('debug') +createDebug.formatters.h = (v) => { + return v.toString('hex') +} + +// …elsewhere +const debug = createDebug('foo') +debug('this is hex: %h', new Buffer('hello world')) +// foo this is hex: 68656c6c6f20776f726c6421 +0ms +``` + + +## Browser Support + +You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify), +or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest), +if you don't want to build it yourself. + +Debug's enable state is currently persisted by `localStorage`. +Consider the situation shown below where you have `worker:a` and `worker:b`, +and wish to debug both. You can enable this using `localStorage.debug`: + +```js +localStorage.debug = 'worker:*' +``` + +And then refresh the page. + +```js +a = debug('worker:a'); +b = debug('worker:b'); + +setInterval(function(){ + a('doing some work'); +}, 1000); + +setInterval(function(){ + b('doing some work'); +}, 1200); +``` + +In Chromium-based web browsers (e.g. Brave, Chrome, and Electron), the JavaScript console will—by default—only show messages logged by `debug` if the "Verbose" log level is _enabled_. + + + +## Output streams + + By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method: + +Example [_stdout.js_](./examples/node/stdout.js): + +```js +var debug = require('debug'); +var error = debug('app:error'); + +// by default stderr is used +error('goes to stderr!'); + +var log = debug('app:log'); +// set this namespace to log via console.log +log.log = console.log.bind(console); // don't forget to bind to console! +log('goes to stdout'); +error('still goes to stderr!'); + +// set all output to go via console.info +// overrides all per-namespace log settings +debug.log = console.info.bind(console); +error('now goes to stdout via console.info'); +log('still goes to stdout, but via console.info now'); +``` + +## Extend +You can simply extend debugger +```js +const log = require('debug')('auth'); + +//creates new debug instance with extended namespace +const logSign = log.extend('sign'); +const logLogin = log.extend('login'); + +log('hello'); // auth hello +logSign('hello'); //auth:sign hello +logLogin('hello'); //auth:login hello +``` + +## Set dynamically + +You can also enable debug dynamically by calling the `enable()` method : + +```js +let debug = require('debug'); + +console.log(1, debug.enabled('test')); + +debug.enable('test'); +console.log(2, debug.enabled('test')); + +debug.disable(); +console.log(3, debug.enabled('test')); + +``` + +print : +``` +1 false +2 true +3 false +``` + +Usage : +`enable(namespaces)` +`namespaces` can include modes separated by a colon and wildcards. + +Note that calling `enable()` completely overrides previously set DEBUG variable : + +``` +$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))' +=> false +``` + +`disable()` + +Will disable all namespaces. The functions returns the namespaces currently +enabled (and skipped). This can be useful if you want to disable debugging +temporarily without knowing what was enabled to begin with. + +For example: + +```js +let debug = require('debug'); +debug.enable('foo:*,-foo:bar'); +let namespaces = debug.disable(); +debug.enable(namespaces); +``` + +Note: There is no guarantee that the string will be identical to the initial +enable string, but semantically they will be identical. + +## Checking whether a debug target is enabled + +After you've created a debug instance, you can determine whether or not it is +enabled by checking the `enabled` property: + +```javascript +const debug = require('debug')('http'); + +if (debug.enabled) { + // do stuff... +} +``` + +You can also manually toggle this property to force the debug instance to be +enabled or disabled. + +## Usage in child processes + +Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process. +For example: + +```javascript +worker = fork(WORKER_WRAP_PATH, [workerPath], { + stdio: [ + /* stdin: */ 0, + /* stdout: */ 'pipe', + /* stderr: */ 'pipe', + 'ipc', + ], + env: Object.assign({}, process.env, { + DEBUG_COLORS: 1 // without this settings, colors won't be shown + }), +}); + +worker.stderr.pipe(process.stderr, { end: false }); +``` + + +## Authors + + - TJ Holowaychuk + - Nathan Rajlich + - Andrew Rhyne + - Josh Junon + +## Backers + +Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)] + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +## Sponsors + +Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)] + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +## License + +(The MIT License) + +Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca> +Copyright (c) 2018-2021 Josh Junon + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/index.js b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/index.js new file mode 100644 index 000000000..c4498bcc2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/index.js @@ -0,0 +1,162 @@ +/** + * Helpers. + */ + +var s = 1000; +var m = s * 60; +var h = m * 60; +var d = h * 24; +var w = d * 7; +var y = d * 365.25; + +/** + * Parse or format the given `val`. + * + * Options: + * + * - `long` verbose formatting [false] + * + * @param {String|Number} val + * @param {Object} [options] + * @throws {Error} throw an error if val is not a non-empty string or a number + * @return {String|Number} + * @api public + */ + +module.exports = function(val, options) { + options = options || {}; + var type = typeof val; + if (type === 'string' && val.length > 0) { + return parse(val); + } else if (type === 'number' && isFinite(val)) { + return options.long ? fmtLong(val) : fmtShort(val); + } + throw new Error( + 'val is not a non-empty string or a valid number. val=' + + JSON.stringify(val) + ); +}; + +/** + * Parse the given `str` and return milliseconds. + * + * @param {String} str + * @return {Number} + * @api private + */ + +function parse(str) { + str = String(str); + if (str.length > 100) { + return; + } + var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec( + str + ); + if (!match) { + return; + } + var n = parseFloat(match[1]); + var type = (match[2] || 'ms').toLowerCase(); + switch (type) { + case 'years': + case 'year': + case 'yrs': + case 'yr': + case 'y': + return n * y; + case 'weeks': + case 'week': + case 'w': + return n * w; + case 'days': + case 'day': + case 'd': + return n * d; + case 'hours': + case 'hour': + case 'hrs': + case 'hr': + case 'h': + return n * h; + case 'minutes': + case 'minute': + case 'mins': + case 'min': + case 'm': + return n * m; + case 'seconds': + case 'second': + case 'secs': + case 'sec': + case 's': + return n * s; + case 'milliseconds': + case 'millisecond': + case 'msecs': + case 'msec': + case 'ms': + return n; + default: + return undefined; + } +} + +/** + * Short format for `ms`. + * + * @param {Number} ms + * @return {String} + * @api private + */ + +function fmtShort(ms) { + var msAbs = Math.abs(ms); + if (msAbs >= d) { + return Math.round(ms / d) + 'd'; + } + if (msAbs >= h) { + return Math.round(ms / h) + 'h'; + } + if (msAbs >= m) { + return Math.round(ms / m) + 'm'; + } + if (msAbs >= s) { + return Math.round(ms / s) + 's'; + } + return ms + 'ms'; +} + +/** + * Long format for `ms`. + * + * @param {Number} ms + * @return {String} + * @api private + */ + +function fmtLong(ms) { + var msAbs = Math.abs(ms); + if (msAbs >= d) { + return plural(ms, msAbs, d, 'day'); + } + if (msAbs >= h) { + return plural(ms, msAbs, h, 'hour'); + } + if (msAbs >= m) { + return plural(ms, msAbs, m, 'minute'); + } + if (msAbs >= s) { + return plural(ms, msAbs, s, 'second'); + } + return ms + ' ms'; +} + +/** + * Pluralization helper. + */ + +function plural(ms, msAbs, n, name) { + var isPlural = msAbs >= n * 1.5; + return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : ''); +} diff --git a/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/license.md b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/license.md new file mode 100644 index 000000000..69b61253a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/license.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Zeit, Inc. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/package.json b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/package.json new file mode 100644 index 000000000..eea666e1f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/package.json @@ -0,0 +1,37 @@ +{ + "name": "ms", + "version": "2.1.2", + "description": "Tiny millisecond conversion utility", + "repository": "zeit/ms", + "main": "./index", + "files": [ + "index.js" + ], + "scripts": { + "precommit": "lint-staged", + "lint": "eslint lib/* bin/*", + "test": "mocha tests.js" + }, + "eslintConfig": { + "extends": "eslint:recommended", + "env": { + "node": true, + "es6": true + } + }, + "lint-staged": { + "*.js": [ + "npm run lint", + "prettier --single-quote --write", + "git add" + ] + }, + "license": "MIT", + "devDependencies": { + "eslint": "4.12.1", + "expect.js": "0.3.1", + "husky": "0.14.3", + "lint-staged": "5.0.0", + "mocha": "4.0.1" + } +} diff --git a/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/readme.md b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/readme.md new file mode 100644 index 000000000..9a1996b17 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/node_modules/ms/readme.md @@ -0,0 +1,60 @@ +# ms + +[![Build Status](https://travis-ci.org/zeit/ms.svg?branch=master)](https://travis-ci.org/zeit/ms) +[![Join the community on Spectrum](https://withspectrum.github.io/badge/badge.svg)](https://spectrum.chat/zeit) + +Use this package to easily convert various time formats to milliseconds. + +## Examples + +```js +ms('2 days') // 172800000 +ms('1d') // 86400000 +ms('10h') // 36000000 +ms('2.5 hrs') // 9000000 +ms('2h') // 7200000 +ms('1m') // 60000 +ms('5s') // 5000 +ms('1y') // 31557600000 +ms('100') // 100 +ms('-3 days') // -259200000 +ms('-1h') // -3600000 +ms('-200') // -200 +``` + +### Convert from Milliseconds + +```js +ms(60000) // "1m" +ms(2 * 60000) // "2m" +ms(-3 * 60000) // "-3m" +ms(ms('10 hours')) // "10h" +``` + +### Time Format Written-Out + +```js +ms(60000, { long: true }) // "1 minute" +ms(2 * 60000, { long: true }) // "2 minutes" +ms(-3 * 60000, { long: true }) // "-3 minutes" +ms(ms('10 hours'), { long: true }) // "10 hours" +``` + +## Features + +- Works both in [Node.js](https://nodejs.org) and in the browser +- If a number is supplied to `ms`, a string with a unit is returned +- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`) +- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned + +## Related Packages + +- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time. + +## Caught a Bug? + +1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device +2. Link the package to the global module directory: `npm link` +3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms! + +As always, you can run the tests using: `npm test` diff --git a/week-3/04-course-app-hard/node_modules/debug/package.json b/week-3/04-course-app-hard/node_modules/debug/package.json new file mode 100644 index 000000000..cb6710385 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/package.json @@ -0,0 +1,60 @@ +{ + "name": "debug", + "version": "4.3.5", + "repository": { + "type": "git", + "url": "git://github.com/debug-js/debug.git" + }, + "description": "Lightweight debugging utility for Node.js and the browser", + "keywords": [ + "debug", + "log", + "debugger" + ], + "files": [ + "src", + "LICENSE", + "README.md" + ], + "author": "Josh Junon (https://github.com/qix-)", + "contributors": [ + "TJ Holowaychuk ", + "Nathan Rajlich (http://n8.io)", + "Andrew Rhyne " + ], + "license": "MIT", + "scripts": { + "lint": "xo", + "test": "npm run test:node && npm run test:browser && npm run lint", + "test:node": "istanbul cover _mocha -- test.js test.node.js", + "test:browser": "karma start --single-run", + "test:coverage": "cat ./coverage/lcov.info | coveralls" + }, + "dependencies": { + "ms": "2.1.2" + }, + "devDependencies": { + "brfs": "^2.0.1", + "browserify": "^16.2.3", + "coveralls": "^3.0.2", + "istanbul": "^0.4.5", + "karma": "^3.1.4", + "karma-browserify": "^6.0.0", + "karma-chrome-launcher": "^2.2.0", + "karma-mocha": "^1.3.0", + "mocha": "^5.2.0", + "mocha-lcov-reporter": "^1.2.0", + "sinon": "^14.0.0", + "xo": "^0.23.0" + }, + "peerDependenciesMeta": { + "supports-color": { + "optional": true + } + }, + "main": "./src/index.js", + "browser": "./src/browser.js", + "engines": { + "node": ">=6.0" + } +} diff --git a/week-3/04-course-app-hard/node_modules/debug/src/browser.js b/week-3/04-course-app-hard/node_modules/debug/src/browser.js new file mode 100644 index 000000000..cd0fc35d1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/src/browser.js @@ -0,0 +1,269 @@ +/* eslint-env browser */ + +/** + * This is the web browser implementation of `debug()`. + */ + +exports.formatArgs = formatArgs; +exports.save = save; +exports.load = load; +exports.useColors = useColors; +exports.storage = localstorage(); +exports.destroy = (() => { + let warned = false; + + return () => { + if (!warned) { + warned = true; + console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'); + } + }; +})(); + +/** + * Colors. + */ + +exports.colors = [ + '#0000CC', + '#0000FF', + '#0033CC', + '#0033FF', + '#0066CC', + '#0066FF', + '#0099CC', + '#0099FF', + '#00CC00', + '#00CC33', + '#00CC66', + '#00CC99', + '#00CCCC', + '#00CCFF', + '#3300CC', + '#3300FF', + '#3333CC', + '#3333FF', + '#3366CC', + '#3366FF', + '#3399CC', + '#3399FF', + '#33CC00', + '#33CC33', + '#33CC66', + '#33CC99', + '#33CCCC', + '#33CCFF', + '#6600CC', + '#6600FF', + '#6633CC', + '#6633FF', + '#66CC00', + '#66CC33', + '#9900CC', + '#9900FF', + '#9933CC', + '#9933FF', + '#99CC00', + '#99CC33', + '#CC0000', + '#CC0033', + '#CC0066', + '#CC0099', + '#CC00CC', + '#CC00FF', + '#CC3300', + '#CC3333', + '#CC3366', + '#CC3399', + '#CC33CC', + '#CC33FF', + '#CC6600', + '#CC6633', + '#CC9900', + '#CC9933', + '#CCCC00', + '#CCCC33', + '#FF0000', + '#FF0033', + '#FF0066', + '#FF0099', + '#FF00CC', + '#FF00FF', + '#FF3300', + '#FF3333', + '#FF3366', + '#FF3399', + '#FF33CC', + '#FF33FF', + '#FF6600', + '#FF6633', + '#FF9900', + '#FF9933', + '#FFCC00', + '#FFCC33' +]; + +/** + * Currently only WebKit-based Web Inspectors, Firefox >= v31, + * and the Firebug extension (any Firefox version) are known + * to support "%c" CSS customizations. + * + * TODO: add a `localStorage` variable to explicitly enable/disable colors + */ + +// eslint-disable-next-line complexity +function useColors() { + // NB: In an Electron preload script, document will be defined but not fully + // initialized. Since we know we're in Chrome, we'll just detect this case + // explicitly + if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) { + return true; + } + + // Internet Explorer and Edge do not support colors. + if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) { + return false; + } + + // Is webkit? http://stackoverflow.com/a/16459606/376773 + // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632 + return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) || + // Is firebug? http://stackoverflow.com/a/398120/376773 + (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) || + // Is firefox >= v31? + // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages + (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) || + // Double check webkit in userAgent just in case we are in a worker + (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/)); +} + +/** + * Colorize log arguments if enabled. + * + * @api public + */ + +function formatArgs(args) { + args[0] = (this.useColors ? '%c' : '') + + this.namespace + + (this.useColors ? ' %c' : ' ') + + args[0] + + (this.useColors ? '%c ' : ' ') + + '+' + module.exports.humanize(this.diff); + + if (!this.useColors) { + return; + } + + const c = 'color: ' + this.color; + args.splice(1, 0, c, 'color: inherit'); + + // The final "%c" is somewhat tricky, because there could be other + // arguments passed either before or after the %c, so we need to + // figure out the correct index to insert the CSS into + let index = 0; + let lastC = 0; + args[0].replace(/%[a-zA-Z%]/g, match => { + if (match === '%%') { + return; + } + index++; + if (match === '%c') { + // We only are interested in the *last* %c + // (the user may have provided their own) + lastC = index; + } + }); + + args.splice(lastC, 0, c); +} + +/** + * Invokes `console.debug()` when available. + * No-op when `console.debug` is not a "function". + * If `console.debug` is not available, falls back + * to `console.log`. + * + * @api public + */ +exports.log = console.debug || console.log || (() => {}); + +/** + * Save `namespaces`. + * + * @param {String} namespaces + * @api private + */ +function save(namespaces) { + try { + if (namespaces) { + exports.storage.setItem('debug', namespaces); + } else { + exports.storage.removeItem('debug'); + } + } catch (error) { + // Swallow + // XXX (@Qix-) should we be logging these? + } +} + +/** + * Load `namespaces`. + * + * @return {String} returns the previously persisted debug modes + * @api private + */ +function load() { + let r; + try { + r = exports.storage.getItem('debug'); + } catch (error) { + // Swallow + // XXX (@Qix-) should we be logging these? + } + + // If debug isn't set in LS, and we're in Electron, try to load $DEBUG + if (!r && typeof process !== 'undefined' && 'env' in process) { + r = process.env.DEBUG; + } + + return r; +} + +/** + * Localstorage attempts to return the localstorage. + * + * This is necessary because safari throws + * when a user disables cookies/localstorage + * and you attempt to access it. + * + * @return {LocalStorage} + * @api private + */ + +function localstorage() { + try { + // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context + // The Browser also has localStorage in the global context. + return localStorage; + } catch (error) { + // Swallow + // XXX (@Qix-) should we be logging these? + } +} + +module.exports = require('./common')(exports); + +const {formatters} = module.exports; + +/** + * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default. + */ + +formatters.j = function (v) { + try { + return JSON.stringify(v); + } catch (error) { + return '[UnexpectedJSONParseError]: ' + error.message; + } +}; diff --git a/week-3/04-course-app-hard/node_modules/debug/src/common.js b/week-3/04-course-app-hard/node_modules/debug/src/common.js new file mode 100644 index 000000000..e3291b20f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/src/common.js @@ -0,0 +1,274 @@ + +/** + * This is the common logic for both the Node.js and web browser + * implementations of `debug()`. + */ + +function setup(env) { + createDebug.debug = createDebug; + createDebug.default = createDebug; + createDebug.coerce = coerce; + createDebug.disable = disable; + createDebug.enable = enable; + createDebug.enabled = enabled; + createDebug.humanize = require('ms'); + createDebug.destroy = destroy; + + Object.keys(env).forEach(key => { + createDebug[key] = env[key]; + }); + + /** + * The currently active debug mode names, and names to skip. + */ + + createDebug.names = []; + createDebug.skips = []; + + /** + * Map of special "%n" handling functions, for the debug "format" argument. + * + * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N". + */ + createDebug.formatters = {}; + + /** + * Selects a color for a debug namespace + * @param {String} namespace The namespace string for the debug instance to be colored + * @return {Number|String} An ANSI color code for the given namespace + * @api private + */ + function selectColor(namespace) { + let hash = 0; + + for (let i = 0; i < namespace.length; i++) { + hash = ((hash << 5) - hash) + namespace.charCodeAt(i); + hash |= 0; // Convert to 32bit integer + } + + return createDebug.colors[Math.abs(hash) % createDebug.colors.length]; + } + createDebug.selectColor = selectColor; + + /** + * Create a debugger with the given `namespace`. + * + * @param {String} namespace + * @return {Function} + * @api public + */ + function createDebug(namespace) { + let prevTime; + let enableOverride = null; + let namespacesCache; + let enabledCache; + + function debug(...args) { + // Disabled? + if (!debug.enabled) { + return; + } + + const self = debug; + + // Set `diff` timestamp + const curr = Number(new Date()); + const ms = curr - (prevTime || curr); + self.diff = ms; + self.prev = prevTime; + self.curr = curr; + prevTime = curr; + + args[0] = createDebug.coerce(args[0]); + + if (typeof args[0] !== 'string') { + // Anything else let's inspect with %O + args.unshift('%O'); + } + + // Apply any `formatters` transformations + let index = 0; + args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => { + // If we encounter an escaped % then don't increase the array index + if (match === '%%') { + return '%'; + } + index++; + const formatter = createDebug.formatters[format]; + if (typeof formatter === 'function') { + const val = args[index]; + match = formatter.call(self, val); + + // Now we need to remove `args[index]` since it's inlined in the `format` + args.splice(index, 1); + index--; + } + return match; + }); + + // Apply env-specific formatting (colors, etc.) + createDebug.formatArgs.call(self, args); + + const logFn = self.log || createDebug.log; + logFn.apply(self, args); + } + + debug.namespace = namespace; + debug.useColors = createDebug.useColors(); + debug.color = createDebug.selectColor(namespace); + debug.extend = extend; + debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release. + + Object.defineProperty(debug, 'enabled', { + enumerable: true, + configurable: false, + get: () => { + if (enableOverride !== null) { + return enableOverride; + } + if (namespacesCache !== createDebug.namespaces) { + namespacesCache = createDebug.namespaces; + enabledCache = createDebug.enabled(namespace); + } + + return enabledCache; + }, + set: v => { + enableOverride = v; + } + }); + + // Env-specific initialization logic for debug instances + if (typeof createDebug.init === 'function') { + createDebug.init(debug); + } + + return debug; + } + + function extend(namespace, delimiter) { + const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace); + newDebug.log = this.log; + return newDebug; + } + + /** + * Enables a debug mode by namespaces. This can include modes + * separated by a colon and wildcards. + * + * @param {String} namespaces + * @api public + */ + function enable(namespaces) { + createDebug.save(namespaces); + createDebug.namespaces = namespaces; + + createDebug.names = []; + createDebug.skips = []; + + let i; + const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/); + const len = split.length; + + for (i = 0; i < len; i++) { + if (!split[i]) { + // ignore empty strings + continue; + } + + namespaces = split[i].replace(/\*/g, '.*?'); + + if (namespaces[0] === '-') { + createDebug.skips.push(new RegExp('^' + namespaces.slice(1) + '$')); + } else { + createDebug.names.push(new RegExp('^' + namespaces + '$')); + } + } + } + + /** + * Disable debug output. + * + * @return {String} namespaces + * @api public + */ + function disable() { + const namespaces = [ + ...createDebug.names.map(toNamespace), + ...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace) + ].join(','); + createDebug.enable(''); + return namespaces; + } + + /** + * Returns true if the given mode name is enabled, false otherwise. + * + * @param {String} name + * @return {Boolean} + * @api public + */ + function enabled(name) { + if (name[name.length - 1] === '*') { + return true; + } + + let i; + let len; + + for (i = 0, len = createDebug.skips.length; i < len; i++) { + if (createDebug.skips[i].test(name)) { + return false; + } + } + + for (i = 0, len = createDebug.names.length; i < len; i++) { + if (createDebug.names[i].test(name)) { + return true; + } + } + + return false; + } + + /** + * Convert regexp to namespace + * + * @param {RegExp} regxep + * @return {String} namespace + * @api private + */ + function toNamespace(regexp) { + return regexp.toString() + .substring(2, regexp.toString().length - 2) + .replace(/\.\*\?$/, '*'); + } + + /** + * Coerce `val`. + * + * @param {Mixed} val + * @return {Mixed} + * @api private + */ + function coerce(val) { + if (val instanceof Error) { + return val.stack || val.message; + } + return val; + } + + /** + * XXX DO NOT USE. This is a temporary stub function. + * XXX It WILL be removed in the next major release. + */ + function destroy() { + console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'); + } + + createDebug.enable(createDebug.load()); + + return createDebug; +} + +module.exports = setup; diff --git a/week-3/04-course-app-hard/node_modules/debug/src/index.js b/week-3/04-course-app-hard/node_modules/debug/src/index.js new file mode 100644 index 000000000..bf4c57f25 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/src/index.js @@ -0,0 +1,10 @@ +/** + * Detect Electron renderer / nwjs process, which is node, but we should + * treat as a browser. + */ + +if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) { + module.exports = require('./browser.js'); +} else { + module.exports = require('./node.js'); +} diff --git a/week-3/04-course-app-hard/node_modules/debug/src/node.js b/week-3/04-course-app-hard/node_modules/debug/src/node.js new file mode 100644 index 000000000..715560a4c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/debug/src/node.js @@ -0,0 +1,263 @@ +/** + * Module dependencies. + */ + +const tty = require('tty'); +const util = require('util'); + +/** + * This is the Node.js implementation of `debug()`. + */ + +exports.init = init; +exports.log = log; +exports.formatArgs = formatArgs; +exports.save = save; +exports.load = load; +exports.useColors = useColors; +exports.destroy = util.deprecate( + () => {}, + 'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.' +); + +/** + * Colors. + */ + +exports.colors = [6, 2, 3, 4, 5, 1]; + +try { + // Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json) + // eslint-disable-next-line import/no-extraneous-dependencies + const supportsColor = require('supports-color'); + + if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) { + exports.colors = [ + 20, + 21, + 26, + 27, + 32, + 33, + 38, + 39, + 40, + 41, + 42, + 43, + 44, + 45, + 56, + 57, + 62, + 63, + 68, + 69, + 74, + 75, + 76, + 77, + 78, + 79, + 80, + 81, + 92, + 93, + 98, + 99, + 112, + 113, + 128, + 129, + 134, + 135, + 148, + 149, + 160, + 161, + 162, + 163, + 164, + 165, + 166, + 167, + 168, + 169, + 170, + 171, + 172, + 173, + 178, + 179, + 184, + 185, + 196, + 197, + 198, + 199, + 200, + 201, + 202, + 203, + 204, + 205, + 206, + 207, + 208, + 209, + 214, + 215, + 220, + 221 + ]; + } +} catch (error) { + // Swallow - we only care if `supports-color` is available; it doesn't have to be. +} + +/** + * Build up the default `inspectOpts` object from the environment variables. + * + * $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js + */ + +exports.inspectOpts = Object.keys(process.env).filter(key => { + return /^debug_/i.test(key); +}).reduce((obj, key) => { + // Camel-case + const prop = key + .substring(6) + .toLowerCase() + .replace(/_([a-z])/g, (_, k) => { + return k.toUpperCase(); + }); + + // Coerce string value into JS value + let val = process.env[key]; + if (/^(yes|on|true|enabled)$/i.test(val)) { + val = true; + } else if (/^(no|off|false|disabled)$/i.test(val)) { + val = false; + } else if (val === 'null') { + val = null; + } else { + val = Number(val); + } + + obj[prop] = val; + return obj; +}, {}); + +/** + * Is stdout a TTY? Colored output is enabled when `true`. + */ + +function useColors() { + return 'colors' in exports.inspectOpts ? + Boolean(exports.inspectOpts.colors) : + tty.isatty(process.stderr.fd); +} + +/** + * Adds ANSI color escape codes if enabled. + * + * @api public + */ + +function formatArgs(args) { + const {namespace: name, useColors} = this; + + if (useColors) { + const c = this.color; + const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c); + const prefix = ` ${colorCode};1m${name} \u001B[0m`; + + args[0] = prefix + args[0].split('\n').join('\n' + prefix); + args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m'); + } else { + args[0] = getDate() + name + ' ' + args[0]; + } +} + +function getDate() { + if (exports.inspectOpts.hideDate) { + return ''; + } + return new Date().toISOString() + ' '; +} + +/** + * Invokes `util.formatWithOptions()` with the specified arguments and writes to stderr. + */ + +function log(...args) { + return process.stderr.write(util.formatWithOptions(exports.inspectOpts, ...args) + '\n'); +} + +/** + * Save `namespaces`. + * + * @param {String} namespaces + * @api private + */ +function save(namespaces) { + if (namespaces) { + process.env.DEBUG = namespaces; + } else { + // If you set a process.env field to null or undefined, it gets cast to the + // string 'null' or 'undefined'. Just delete instead. + delete process.env.DEBUG; + } +} + +/** + * Load `namespaces`. + * + * @return {String} returns the previously persisted debug modes + * @api private + */ + +function load() { + return process.env.DEBUG; +} + +/** + * Init logic for `debug` instances. + * + * Create a new `inspectOpts` object in case `useColors` is set + * differently for a particular `debug` instance. + */ + +function init(debug) { + debug.inspectOpts = {}; + + const keys = Object.keys(exports.inspectOpts); + for (let i = 0; i < keys.length; i++) { + debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]]; + } +} + +module.exports = require('./common')(exports); + +const {formatters} = module.exports; + +/** + * Map %o to `util.inspect()`, all on a single line. + */ + +formatters.o = function (v) { + this.inspectOpts.colors = this.useColors; + return util.inspect(v, this.inspectOpts) + .split('\n') + .map(str => str.trim()) + .join(' '); +}; + +/** + * Map %O to `util.inspect()`, allowing multiple lines if needed. + */ + +formatters.O = function (v) { + this.inspectOpts.colors = this.useColors; + return util.inspect(v, this.inspectOpts); +}; diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/CODEOWNERS b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/CODEOWNERS new file mode 100644 index 000000000..4451d3d83 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/CODEOWNERS @@ -0,0 +1 @@ +* @omsmith diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/LICENSE b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/LICENSE new file mode 100644 index 000000000..8754ed630 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/LICENSE @@ -0,0 +1,201 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2015 D2L Corporation + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/README.md b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/README.md new file mode 100644 index 000000000..daa95d6e4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/README.md @@ -0,0 +1,65 @@ +# ecdsa-sig-formatter + +[![Build Status](https://travis-ci.org/Brightspace/node-ecdsa-sig-formatter.svg?branch=master)](https://travis-ci.org/Brightspace/node-ecdsa-sig-formatter) [![Coverage Status](https://coveralls.io/repos/Brightspace/node-ecdsa-sig-formatter/badge.svg)](https://coveralls.io/r/Brightspace/node-ecdsa-sig-formatter) + +Translate between JOSE and ASN.1/DER encodings for ECDSA signatures + +## Install +```sh +npm install ecdsa-sig-formatter --save +``` + +## Usage +```js +var format = require('ecdsa-sig-formatter'); + +var derSignature = '..'; // asn.1/DER encoded ecdsa signature + +var joseSignature = format.derToJose(derSignature); + +``` + +### API + +--- + +#### `.derToJose(Buffer|String signature, String alg)` -> `String` + +Convert the ASN.1/DER encoded signature to a JOSE-style concatenated signature. +Returns a _base64 url_ encoded `String`. + +* If _signature_ is a `String`, it should be _base64_ encoded +* _alg_ must be one of _ES256_, _ES384_ or _ES512_ + +--- + +#### `.joseToDer(Buffer|String signature, String alg)` -> `Buffer` + +Convert the JOSE-style concatenated signature to an ASN.1/DER encoded +signature. Returns a `Buffer` + +* If _signature_ is a `String`, it should be _base64 url_ encoded +* _alg_ must be one of _ES256_, _ES384_ or _ES512_ + +## Contributing + +1. **Fork** the repository. Committing directly against this repository is + highly discouraged. + +2. Make your modifications in a branch, updating and writing new unit tests + as necessary in the `spec` directory. + +3. Ensure that all tests pass with `npm test` + +4. `rebase` your changes against master. *Do not merge*. + +5. Submit a pull request to this repository. Wait for tests to run and someone + to chime in. + +### Code Style + +This repository is configured with [EditorConfig][EditorConfig] and +[ESLint][ESLint] rules. + +[EditorConfig]: http://editorconfig.org/ +[ESLint]: http://eslint.org diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/package.json b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/package.json new file mode 100644 index 000000000..6fb5ebfe6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/package.json @@ -0,0 +1,46 @@ +{ + "name": "ecdsa-sig-formatter", + "version": "1.0.11", + "description": "Translate ECDSA signatures between ASN.1/DER and JOSE-style concatenation", + "main": "src/ecdsa-sig-formatter.js", + "scripts": { + "check-style": "eslint .", + "pretest": "npm run check-style", + "test": "istanbul cover --root src _mocha -- spec", + "report-cov": "cat ./coverage/lcov.info | coveralls" + }, + "typings": "./src/ecdsa-sig-formatter.d.ts", + "repository": { + "type": "git", + "url": "git+ssh://git@github.com/Brightspace/node-ecdsa-sig-formatter.git" + }, + "keywords": [ + "ecdsa", + "der", + "asn.1", + "jwt", + "jwa", + "jsonwebtoken", + "jose" + ], + "author": "D2L Corporation", + "license": "Apache-2.0", + "bugs": { + "url": "https://github.com/Brightspace/node-ecdsa-sig-formatter/issues" + }, + "homepage": "https://github.com/Brightspace/node-ecdsa-sig-formatter#readme", + "dependencies": { + "safe-buffer": "^5.0.1" + }, + "devDependencies": { + "bench": "^0.3.6", + "chai": "^3.5.0", + "coveralls": "^2.11.9", + "eslint": "^2.12.0", + "eslint-config-brightspace": "^0.2.1", + "istanbul": "^0.4.3", + "jwk-to-pem": "^1.2.5", + "mocha": "^2.5.3", + "native-crypto": "^1.7.0" + } +} diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.d.ts b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.d.ts new file mode 100644 index 000000000..9693aa030 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.d.ts @@ -0,0 +1,17 @@ +/// + +declare module "ecdsa-sig-formatter" { + /** + * Convert the ASN.1/DER encoded signature to a JOSE-style concatenated signature. Returns a base64 url encoded String. + * If signature is a String, it should be base64 encoded + * alg must be one of ES256, ES384 or ES512 + */ + export function derToJose(signature: Buffer | string, alg: string): string; + + /** + * Convert the JOSE-style concatenated signature to an ASN.1/DER encoded signature. Returns a Buffer + * If signature is a String, it should be base64 url encoded + * alg must be one of ES256, ES384 or ES512 + */ + export function joseToDer(signature: Buffer | string, alg: string): Buffer +} diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.js b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.js new file mode 100644 index 000000000..38eeb9b97 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/ecdsa-sig-formatter.js @@ -0,0 +1,187 @@ +'use strict'; + +var Buffer = require('safe-buffer').Buffer; + +var getParamBytesForAlg = require('./param-bytes-for-alg'); + +var MAX_OCTET = 0x80, + CLASS_UNIVERSAL = 0, + PRIMITIVE_BIT = 0x20, + TAG_SEQ = 0x10, + TAG_INT = 0x02, + ENCODED_TAG_SEQ = (TAG_SEQ | PRIMITIVE_BIT) | (CLASS_UNIVERSAL << 6), + ENCODED_TAG_INT = TAG_INT | (CLASS_UNIVERSAL << 6); + +function base64Url(base64) { + return base64 + .replace(/=/g, '') + .replace(/\+/g, '-') + .replace(/\//g, '_'); +} + +function signatureAsBuffer(signature) { + if (Buffer.isBuffer(signature)) { + return signature; + } else if ('string' === typeof signature) { + return Buffer.from(signature, 'base64'); + } + + throw new TypeError('ECDSA signature must be a Base64 string or a Buffer'); +} + +function derToJose(signature, alg) { + signature = signatureAsBuffer(signature); + var paramBytes = getParamBytesForAlg(alg); + + // the DER encoded param should at most be the param size, plus a padding + // zero, since due to being a signed integer + var maxEncodedParamLength = paramBytes + 1; + + var inputLength = signature.length; + + var offset = 0; + if (signature[offset++] !== ENCODED_TAG_SEQ) { + throw new Error('Could not find expected "seq"'); + } + + var seqLength = signature[offset++]; + if (seqLength === (MAX_OCTET | 1)) { + seqLength = signature[offset++]; + } + + if (inputLength - offset < seqLength) { + throw new Error('"seq" specified length of "' + seqLength + '", only "' + (inputLength - offset) + '" remaining'); + } + + if (signature[offset++] !== ENCODED_TAG_INT) { + throw new Error('Could not find expected "int" for "r"'); + } + + var rLength = signature[offset++]; + + if (inputLength - offset - 2 < rLength) { + throw new Error('"r" specified length of "' + rLength + '", only "' + (inputLength - offset - 2) + '" available'); + } + + if (maxEncodedParamLength < rLength) { + throw new Error('"r" specified length of "' + rLength + '", max of "' + maxEncodedParamLength + '" is acceptable'); + } + + var rOffset = offset; + offset += rLength; + + if (signature[offset++] !== ENCODED_TAG_INT) { + throw new Error('Could not find expected "int" for "s"'); + } + + var sLength = signature[offset++]; + + if (inputLength - offset !== sLength) { + throw new Error('"s" specified length of "' + sLength + '", expected "' + (inputLength - offset) + '"'); + } + + if (maxEncodedParamLength < sLength) { + throw new Error('"s" specified length of "' + sLength + '", max of "' + maxEncodedParamLength + '" is acceptable'); + } + + var sOffset = offset; + offset += sLength; + + if (offset !== inputLength) { + throw new Error('Expected to consume entire buffer, but "' + (inputLength - offset) + '" bytes remain'); + } + + var rPadding = paramBytes - rLength, + sPadding = paramBytes - sLength; + + var dst = Buffer.allocUnsafe(rPadding + rLength + sPadding + sLength); + + for (offset = 0; offset < rPadding; ++offset) { + dst[offset] = 0; + } + signature.copy(dst, offset, rOffset + Math.max(-rPadding, 0), rOffset + rLength); + + offset = paramBytes; + + for (var o = offset; offset < o + sPadding; ++offset) { + dst[offset] = 0; + } + signature.copy(dst, offset, sOffset + Math.max(-sPadding, 0), sOffset + sLength); + + dst = dst.toString('base64'); + dst = base64Url(dst); + + return dst; +} + +function countPadding(buf, start, stop) { + var padding = 0; + while (start + padding < stop && buf[start + padding] === 0) { + ++padding; + } + + var needsSign = buf[start + padding] >= MAX_OCTET; + if (needsSign) { + --padding; + } + + return padding; +} + +function joseToDer(signature, alg) { + signature = signatureAsBuffer(signature); + var paramBytes = getParamBytesForAlg(alg); + + var signatureBytes = signature.length; + if (signatureBytes !== paramBytes * 2) { + throw new TypeError('"' + alg + '" signatures must be "' + paramBytes * 2 + '" bytes, saw "' + signatureBytes + '"'); + } + + var rPadding = countPadding(signature, 0, paramBytes); + var sPadding = countPadding(signature, paramBytes, signature.length); + var rLength = paramBytes - rPadding; + var sLength = paramBytes - sPadding; + + var rsBytes = 1 + 1 + rLength + 1 + 1 + sLength; + + var shortLength = rsBytes < MAX_OCTET; + + var dst = Buffer.allocUnsafe((shortLength ? 2 : 3) + rsBytes); + + var offset = 0; + dst[offset++] = ENCODED_TAG_SEQ; + if (shortLength) { + // Bit 8 has value "0" + // bits 7-1 give the length. + dst[offset++] = rsBytes; + } else { + // Bit 8 of first octet has value "1" + // bits 7-1 give the number of additional length octets. + dst[offset++] = MAX_OCTET | 1; + // length, base 256 + dst[offset++] = rsBytes & 0xff; + } + dst[offset++] = ENCODED_TAG_INT; + dst[offset++] = rLength; + if (rPadding < 0) { + dst[offset++] = 0; + offset += signature.copy(dst, offset, 0, paramBytes); + } else { + offset += signature.copy(dst, offset, rPadding, paramBytes); + } + dst[offset++] = ENCODED_TAG_INT; + dst[offset++] = sLength; + if (sPadding < 0) { + dst[offset++] = 0; + signature.copy(dst, offset, paramBytes); + } else { + signature.copy(dst, offset, paramBytes + sPadding); + } + + return dst; +} + +module.exports = { + derToJose: derToJose, + joseToDer: joseToDer +}; diff --git a/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/param-bytes-for-alg.js b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/param-bytes-for-alg.js new file mode 100644 index 000000000..9fe67accd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ecdsa-sig-formatter/src/param-bytes-for-alg.js @@ -0,0 +1,23 @@ +'use strict'; + +function getParamSize(keySize) { + var result = ((keySize / 8) | 0) + (keySize % 8 === 0 ? 0 : 1); + return result; +} + +var paramBytesForAlg = { + ES256: getParamSize(256), + ES384: getParamSize(384), + ES512: getParamSize(521) +}; + +function getParamBytesForAlg(alg) { + var paramBytes = paramBytesForAlg[alg]; + if (paramBytes) { + return paramBytes; + } + + throw new Error('Unknown algorithm "' + alg + '"'); +} + +module.exports = getParamBytesForAlg; diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/LICENSE b/week-3/04-course-app-hard/node_modules/jsonwebtoken/LICENSE new file mode 100644 index 000000000..bcd1854c4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2015 Auth0, Inc. (http://auth0.com) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/README.md b/week-3/04-course-app-hard/node_modules/jsonwebtoken/README.md new file mode 100644 index 000000000..4e20dd9c7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/README.md @@ -0,0 +1,396 @@ +# jsonwebtoken + +| **Build** | **Dependency** | +|-----------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------| +| [![Build Status](https://secure.travis-ci.org/auth0/node-jsonwebtoken.svg?branch=master)](http://travis-ci.org/auth0/node-jsonwebtoken) | [![Dependency Status](https://david-dm.org/auth0/node-jsonwebtoken.svg)](https://david-dm.org/auth0/node-jsonwebtoken) | + + +An implementation of [JSON Web Tokens](https://tools.ietf.org/html/rfc7519). + +This was developed against `draft-ietf-oauth-json-web-token-08`. It makes use of [node-jws](https://github.com/brianloveswords/node-jws) + +# Install + +```bash +$ npm install jsonwebtoken +``` + +# Migration notes + +* [From v8 to v9](https://github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v8-to-v9) +* [From v7 to v8](https://github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v7-to-v8) + +# Usage + +### jwt.sign(payload, secretOrPrivateKey, [options, callback]) + +(Asynchronous) If a callback is supplied, the callback is called with the `err` or the JWT. + +(Synchronous) Returns the JsonWebToken as string + +`payload` could be an object literal, buffer or string representing valid JSON. +> **Please _note_ that** `exp` or any other claim is only set if the payload is an object literal. Buffer or string payloads are not checked for JSON validity. + +> If `payload` is not a buffer or a string, it will be coerced into a string using `JSON.stringify`. + +`secretOrPrivateKey` is a string (utf-8 encoded), buffer, object, or KeyObject containing either the secret for HMAC algorithms or the PEM +encoded private key for RSA and ECDSA. In case of a private key with passphrase an object `{ key, passphrase }` can be used (based on [crypto documentation](https://nodejs.org/api/crypto.html#crypto_sign_sign_private_key_output_format)), in this case be sure you pass the `algorithm` option. +When signing with RSA algorithms the minimum modulus length is 2048 except when the allowInsecureKeySizes option is set to true. Private keys below this size will be rejected with an error. + +`options`: + +* `algorithm` (default: `HS256`) +* `expiresIn`: expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms). + > Eg: `60`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`). +* `notBefore`: expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms). + > Eg: `60`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`). +* `audience` +* `issuer` +* `jwtid` +* `subject` +* `noTimestamp` +* `header` +* `keyid` +* `mutatePayload`: if true, the sign function will modify the payload object directly. This is useful if you need a raw reference to the payload after claims have been applied to it but before it has been encoded into a token. +* `allowInsecureKeySizes`: if true allows private keys with a modulus below 2048 to be used for RSA +* `allowInvalidAsymmetricKeyTypes`: if true, allows asymmetric keys which do not match the specified algorithm. This option is intended only for backwards compatability and should be avoided. + + + +> There are no default values for `expiresIn`, `notBefore`, `audience`, `subject`, `issuer`. These claims can also be provided in the payload directly with `exp`, `nbf`, `aud`, `sub` and `iss` respectively, but you **_can't_** include in both places. + +Remember that `exp`, `nbf` and `iat` are **NumericDate**, see related [Token Expiration (exp claim)](#token-expiration-exp-claim) + + +The header can be customized via the `options.header` object. + +Generated jwts will include an `iat` (issued at) claim by default unless `noTimestamp` is specified. If `iat` is inserted in the payload, it will be used instead of the real timestamp for calculating other things like `exp` given a timespan in `options.expiresIn`. + +Synchronous Sign with default (HMAC SHA256) + +```js +var jwt = require('jsonwebtoken'); +var token = jwt.sign({ foo: 'bar' }, 'shhhhh'); +``` + +Synchronous Sign with RSA SHA256 +```js +// sign with RSA SHA256 +var privateKey = fs.readFileSync('private.key'); +var token = jwt.sign({ foo: 'bar' }, privateKey, { algorithm: 'RS256' }); +``` + +Sign asynchronously +```js +jwt.sign({ foo: 'bar' }, privateKey, { algorithm: 'RS256' }, function(err, token) { + console.log(token); +}); +``` + +Backdate a jwt 30 seconds +```js +var older_token = jwt.sign({ foo: 'bar', iat: Math.floor(Date.now() / 1000) - 30 }, 'shhhhh'); +``` + +#### Token Expiration (exp claim) + +The standard for JWT defines an `exp` claim for expiration. The expiration is represented as a **NumericDate**: + +> A JSON numeric value representing the number of seconds from 1970-01-01T00:00:00Z UTC until the specified UTC date/time, ignoring leap seconds. This is equivalent to the IEEE Std 1003.1, 2013 Edition [POSIX.1] definition "Seconds Since the Epoch", in which each day is accounted for by exactly 86400 seconds, other than that non-integer values can be represented. See RFC 3339 [RFC3339] for details regarding date/times in general and UTC in particular. + +This means that the `exp` field should contain the number of seconds since the epoch. + +Signing a token with 1 hour of expiration: + +```javascript +jwt.sign({ + exp: Math.floor(Date.now() / 1000) + (60 * 60), + data: 'foobar' +}, 'secret'); +``` + +Another way to generate a token like this with this library is: + +```javascript +jwt.sign({ + data: 'foobar' +}, 'secret', { expiresIn: 60 * 60 }); + +//or even better: + +jwt.sign({ + data: 'foobar' +}, 'secret', { expiresIn: '1h' }); +``` + +### jwt.verify(token, secretOrPublicKey, [options, callback]) + +(Asynchronous) If a callback is supplied, function acts asynchronously. The callback is called with the decoded payload if the signature is valid and optional expiration, audience, or issuer are valid. If not, it will be called with the error. + +(Synchronous) If a callback is not supplied, function acts synchronously. Returns the payload decoded if the signature is valid and optional expiration, audience, or issuer are valid. If not, it will throw the error. + +> __Warning:__ When the token comes from an untrusted source (e.g. user input or external requests), the returned decoded payload should be treated like any other user input; please make sure to sanitize and only work with properties that are expected + +`token` is the JsonWebToken string + +`secretOrPublicKey` is a string (utf-8 encoded), buffer, or KeyObject containing either the secret for HMAC algorithms, or the PEM +encoded public key for RSA and ECDSA. +If `jwt.verify` is called asynchronous, `secretOrPublicKey` can be a function that should fetch the secret or public key. See below for a detailed example + +As mentioned in [this comment](https://github.com/auth0/node-jsonwebtoken/issues/208#issuecomment-231861138), there are other libraries that expect base64 encoded secrets (random bytes encoded using base64), if that is your case you can pass `Buffer.from(secret, 'base64')`, by doing this the secret will be decoded using base64 and the token verification will use the original random bytes. + +`options` + +* `algorithms`: List of strings with the names of the allowed algorithms. For instance, `["HS256", "HS384"]`. + > If not specified a defaults will be used based on the type of key provided + > * secret - ['HS256', 'HS384', 'HS512'] + > * rsa - ['RS256', 'RS384', 'RS512'] + > * ec - ['ES256', 'ES384', 'ES512'] + > * default - ['RS256', 'RS384', 'RS512'] +* `audience`: if you want to check audience (`aud`), provide a value here. The audience can be checked against a string, a regular expression or a list of strings and/or regular expressions. + > Eg: `"urn:foo"`, `/urn:f[o]{2}/`, `[/urn:f[o]{2}/, "urn:bar"]` +* `complete`: return an object with the decoded `{ payload, header, signature }` instead of only the usual content of the payload. +* `issuer` (optional): string or array of strings of valid values for the `iss` field. +* `jwtid` (optional): if you want to check JWT ID (`jti`), provide a string value here. +* `ignoreExpiration`: if `true` do not validate the expiration of the token. +* `ignoreNotBefore`... +* `subject`: if you want to check subject (`sub`), provide a value here +* `clockTolerance`: number of seconds to tolerate when checking the `nbf` and `exp` claims, to deal with small clock differences among different servers +* `maxAge`: the maximum allowed age for tokens to still be valid. It is expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms). + > Eg: `1000`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`). +* `clockTimestamp`: the time in seconds that should be used as the current time for all necessary comparisons. +* `nonce`: if you want to check `nonce` claim, provide a string value here. It is used on Open ID for the ID Tokens. ([Open ID implementation notes](https://openid.net/specs/openid-connect-core-1_0.html#NonceNotes)) +* `allowInvalidAsymmetricKeyTypes`: if true, allows asymmetric keys which do not match the specified algorithm. This option is intended only for backwards compatability and should be avoided. + +```js +// verify a token symmetric - synchronous +var decoded = jwt.verify(token, 'shhhhh'); +console.log(decoded.foo) // bar + +// verify a token symmetric +jwt.verify(token, 'shhhhh', function(err, decoded) { + console.log(decoded.foo) // bar +}); + +// invalid token - synchronous +try { + var decoded = jwt.verify(token, 'wrong-secret'); +} catch(err) { + // err +} + +// invalid token +jwt.verify(token, 'wrong-secret', function(err, decoded) { + // err + // decoded undefined +}); + +// verify a token asymmetric +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, function(err, decoded) { + console.log(decoded.foo) // bar +}); + +// verify audience +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo' }, function(err, decoded) { + // if audience mismatch, err == invalid audience +}); + +// verify issuer +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer' }, function(err, decoded) { + // if issuer mismatch, err == invalid issuer +}); + +// verify jwt id +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer', jwtid: 'jwtid' }, function(err, decoded) { + // if jwt id mismatch, err == invalid jwt id +}); + +// verify subject +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer', jwtid: 'jwtid', subject: 'subject' }, function(err, decoded) { + // if subject mismatch, err == invalid subject +}); + +// alg mismatch +var cert = fs.readFileSync('public.pem'); // get public key +jwt.verify(token, cert, { algorithms: ['RS256'] }, function (err, payload) { + // if token alg != RS256, err == invalid signature +}); + +// Verify using getKey callback +// Example uses https://github.com/auth0/node-jwks-rsa as a way to fetch the keys. +var jwksClient = require('jwks-rsa'); +var client = jwksClient({ + jwksUri: 'https://sandrino.auth0.com/.well-known/jwks.json' +}); +function getKey(header, callback){ + client.getSigningKey(header.kid, function(err, key) { + var signingKey = key.publicKey || key.rsaPublicKey; + callback(null, signingKey); + }); +} + +jwt.verify(token, getKey, options, function(err, decoded) { + console.log(decoded.foo) // bar +}); + +``` + +
+Need to peek into a JWT without verifying it? (Click to expand) + +### jwt.decode(token [, options]) + +(Synchronous) Returns the decoded payload without verifying if the signature is valid. + +> __Warning:__ This will __not__ verify whether the signature is valid. You should __not__ use this for untrusted messages. You most likely want to use `jwt.verify` instead. + +> __Warning:__ When the token comes from an untrusted source (e.g. user input or external request), the returned decoded payload should be treated like any other user input; please make sure to sanitize and only work with properties that are expected + + +`token` is the JsonWebToken string + +`options`: + +* `json`: force JSON.parse on the payload even if the header doesn't contain `"typ":"JWT"`. +* `complete`: return an object with the decoded payload and header. + +Example + +```js +// get the decoded payload ignoring signature, no secretOrPrivateKey needed +var decoded = jwt.decode(token); + +// get the decoded payload and header +var decoded = jwt.decode(token, {complete: true}); +console.log(decoded.header); +console.log(decoded.payload) +``` + +
+ +## Errors & Codes +Possible thrown errors during verification. +Error is the first argument of the verification callback. + +### TokenExpiredError + +Thrown error if the token is expired. + +Error object: + +* name: 'TokenExpiredError' +* message: 'jwt expired' +* expiredAt: [ExpDate] + +```js +jwt.verify(token, 'shhhhh', function(err, decoded) { + if (err) { + /* + err = { + name: 'TokenExpiredError', + message: 'jwt expired', + expiredAt: 1408621000 + } + */ + } +}); +``` + +### JsonWebTokenError +Error object: + +* name: 'JsonWebTokenError' +* message: + * 'invalid token' - the header or payload could not be parsed + * 'jwt malformed' - the token does not have three components (delimited by a `.`) + * 'jwt signature is required' + * 'invalid signature' + * 'jwt audience invalid. expected: [OPTIONS AUDIENCE]' + * 'jwt issuer invalid. expected: [OPTIONS ISSUER]' + * 'jwt id invalid. expected: [OPTIONS JWT ID]' + * 'jwt subject invalid. expected: [OPTIONS SUBJECT]' + +```js +jwt.verify(token, 'shhhhh', function(err, decoded) { + if (err) { + /* + err = { + name: 'JsonWebTokenError', + message: 'jwt malformed' + } + */ + } +}); +``` + +### NotBeforeError +Thrown if current time is before the nbf claim. + +Error object: + +* name: 'NotBeforeError' +* message: 'jwt not active' +* date: 2018-10-04T16:10:44.000Z + +```js +jwt.verify(token, 'shhhhh', function(err, decoded) { + if (err) { + /* + err = { + name: 'NotBeforeError', + message: 'jwt not active', + date: 2018-10-04T16:10:44.000Z + } + */ + } +}); +``` + + +## Algorithms supported + +Array of supported algorithms. The following algorithms are currently supported. + +| alg Parameter Value | Digital Signature or MAC Algorithm | +|---------------------|------------------------------------------------------------------------| +| HS256 | HMAC using SHA-256 hash algorithm | +| HS384 | HMAC using SHA-384 hash algorithm | +| HS512 | HMAC using SHA-512 hash algorithm | +| RS256 | RSASSA-PKCS1-v1_5 using SHA-256 hash algorithm | +| RS384 | RSASSA-PKCS1-v1_5 using SHA-384 hash algorithm | +| RS512 | RSASSA-PKCS1-v1_5 using SHA-512 hash algorithm | +| PS256 | RSASSA-PSS using SHA-256 hash algorithm (only node ^6.12.0 OR >=8.0.0) | +| PS384 | RSASSA-PSS using SHA-384 hash algorithm (only node ^6.12.0 OR >=8.0.0) | +| PS512 | RSASSA-PSS using SHA-512 hash algorithm (only node ^6.12.0 OR >=8.0.0) | +| ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm | +| ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm | +| ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm | +| none | No digital signature or MAC value included | + +## Refreshing JWTs + +First of all, we recommend you to think carefully if auto-refreshing a JWT will not introduce any vulnerability in your system. + +We are not comfortable including this as part of the library, however, you can take a look at [this example](https://gist.github.com/ziluvatar/a3feb505c4c0ec37059054537b38fc48) to show how this could be accomplished. +Apart from that example there are [an issue](https://github.com/auth0/node-jsonwebtoken/issues/122) and [a pull request](https://github.com/auth0/node-jsonwebtoken/pull/172) to get more knowledge about this topic. + +# TODO + +* X.509 certificate chain is not checked + +## Issue Reporting + +If you have found a bug or if you have a feature request, please report them at this repository issues section. Please do not report security vulnerabilities on the public GitHub issue tracker. The [Responsible Disclosure Program](https://auth0.com/whitehat) details the procedure for disclosing security issues. + +## Author + +[Auth0](https://auth0.com) + +## License + +This project is licensed under the MIT license. See the [LICENSE](LICENSE) file for more info. diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/decode.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/decode.js new file mode 100644 index 000000000..8fe1adcd3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/decode.js @@ -0,0 +1,30 @@ +var jws = require('jws'); + +module.exports = function (jwt, options) { + options = options || {}; + var decoded = jws.decode(jwt, options); + if (!decoded) { return null; } + var payload = decoded.payload; + + //try parse the payload + if(typeof payload === 'string') { + try { + var obj = JSON.parse(payload); + if(obj !== null && typeof obj === 'object') { + payload = obj; + } + } catch (e) { } + } + + //return header if `complete` option is enabled. header includes claims + //such as `kid` and `alg` used to select the key within a JWKS needed to + //verify the signature + if (options.complete === true) { + return { + header: decoded.header, + payload: payload, + signature: decoded.signature + }; + } + return payload; +}; diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/index.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/index.js new file mode 100644 index 000000000..161eb2dd1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/index.js @@ -0,0 +1,8 @@ +module.exports = { + decode: require('./decode'), + verify: require('./verify'), + sign: require('./sign'), + JsonWebTokenError: require('./lib/JsonWebTokenError'), + NotBeforeError: require('./lib/NotBeforeError'), + TokenExpiredError: require('./lib/TokenExpiredError'), +}; diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/JsonWebTokenError.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/JsonWebTokenError.js new file mode 100644 index 000000000..e068222a0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/JsonWebTokenError.js @@ -0,0 +1,14 @@ +var JsonWebTokenError = function (message, error) { + Error.call(this, message); + if(Error.captureStackTrace) { + Error.captureStackTrace(this, this.constructor); + } + this.name = 'JsonWebTokenError'; + this.message = message; + if (error) this.inner = error; +}; + +JsonWebTokenError.prototype = Object.create(Error.prototype); +JsonWebTokenError.prototype.constructor = JsonWebTokenError; + +module.exports = JsonWebTokenError; diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/NotBeforeError.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/NotBeforeError.js new file mode 100644 index 000000000..7b30084fb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/NotBeforeError.js @@ -0,0 +1,13 @@ +var JsonWebTokenError = require('./JsonWebTokenError'); + +var NotBeforeError = function (message, date) { + JsonWebTokenError.call(this, message); + this.name = 'NotBeforeError'; + this.date = date; +}; + +NotBeforeError.prototype = Object.create(JsonWebTokenError.prototype); + +NotBeforeError.prototype.constructor = NotBeforeError; + +module.exports = NotBeforeError; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/TokenExpiredError.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/TokenExpiredError.js new file mode 100644 index 000000000..abb704f23 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/TokenExpiredError.js @@ -0,0 +1,13 @@ +var JsonWebTokenError = require('./JsonWebTokenError'); + +var TokenExpiredError = function (message, expiredAt) { + JsonWebTokenError.call(this, message); + this.name = 'TokenExpiredError'; + this.expiredAt = expiredAt; +}; + +TokenExpiredError.prototype = Object.create(JsonWebTokenError.prototype); + +TokenExpiredError.prototype.constructor = TokenExpiredError; + +module.exports = TokenExpiredError; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/asymmetricKeyDetailsSupported.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/asymmetricKeyDetailsSupported.js new file mode 100644 index 000000000..a6ede56e3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/asymmetricKeyDetailsSupported.js @@ -0,0 +1,3 @@ +const semver = require('semver'); + +module.exports = semver.satisfies(process.version, '>=15.7.0'); diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/psSupported.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/psSupported.js new file mode 100644 index 000000000..8c04144a1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/psSupported.js @@ -0,0 +1,3 @@ +var semver = require('semver'); + +module.exports = semver.satisfies(process.version, '^6.12.0 || >=8.0.0'); diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/rsaPssKeyDetailsSupported.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/rsaPssKeyDetailsSupported.js new file mode 100644 index 000000000..7fcf36846 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/rsaPssKeyDetailsSupported.js @@ -0,0 +1,3 @@ +const semver = require('semver'); + +module.exports = semver.satisfies(process.version, '>=16.9.0'); diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/timespan.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/timespan.js new file mode 100644 index 000000000..e50986908 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/timespan.js @@ -0,0 +1,18 @@ +var ms = require('ms'); + +module.exports = function (time, iat) { + var timestamp = iat || Math.floor(Date.now() / 1000); + + if (typeof time === 'string') { + var milliseconds = ms(time); + if (typeof milliseconds === 'undefined') { + return; + } + return Math.floor(timestamp + milliseconds / 1000); + } else if (typeof time === 'number') { + return timestamp + time; + } else { + return; + } + +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/validateAsymmetricKey.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/validateAsymmetricKey.js new file mode 100644 index 000000000..c10340b03 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/lib/validateAsymmetricKey.js @@ -0,0 +1,66 @@ +const ASYMMETRIC_KEY_DETAILS_SUPPORTED = require('./asymmetricKeyDetailsSupported'); +const RSA_PSS_KEY_DETAILS_SUPPORTED = require('./rsaPssKeyDetailsSupported'); + +const allowedAlgorithmsForKeys = { + 'ec': ['ES256', 'ES384', 'ES512'], + 'rsa': ['RS256', 'PS256', 'RS384', 'PS384', 'RS512', 'PS512'], + 'rsa-pss': ['PS256', 'PS384', 'PS512'] +}; + +const allowedCurves = { + ES256: 'prime256v1', + ES384: 'secp384r1', + ES512: 'secp521r1', +}; + +module.exports = function(algorithm, key) { + if (!algorithm || !key) return; + + const keyType = key.asymmetricKeyType; + if (!keyType) return; + + const allowedAlgorithms = allowedAlgorithmsForKeys[keyType]; + + if (!allowedAlgorithms) { + throw new Error(`Unknown key type "${keyType}".`); + } + + if (!allowedAlgorithms.includes(algorithm)) { + throw new Error(`"alg" parameter for "${keyType}" key type must be one of: ${allowedAlgorithms.join(', ')}.`) + } + + /* + * Ignore the next block from test coverage because it gets executed + * conditionally depending on the Node version. Not ignoring it would + * prevent us from reaching the target % of coverage for versions of + * Node under 15.7.0. + */ + /* istanbul ignore next */ + if (ASYMMETRIC_KEY_DETAILS_SUPPORTED) { + switch (keyType) { + case 'ec': + const keyCurve = key.asymmetricKeyDetails.namedCurve; + const allowedCurve = allowedCurves[algorithm]; + + if (keyCurve !== allowedCurve) { + throw new Error(`"alg" parameter "${algorithm}" requires curve "${allowedCurve}".`); + } + break; + + case 'rsa-pss': + if (RSA_PSS_KEY_DETAILS_SUPPORTED) { + const length = parseInt(algorithm.slice(-3), 10); + const { hashAlgorithm, mgf1HashAlgorithm, saltLength } = key.asymmetricKeyDetails; + + if (hashAlgorithm !== `sha${length}` || mgf1HashAlgorithm !== hashAlgorithm) { + throw new Error(`Invalid key for this operation, its RSA-PSS parameters do not meet the requirements of "alg" ${algorithm}.`); + } + + if (saltLength !== undefined && saltLength > length >> 3) { + throw new Error(`Invalid key for this operation, its RSA-PSS parameter saltLength does not meet the requirements of "alg" ${algorithm}.`) + } + } + break; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/package.json b/week-3/04-course-app-hard/node_modules/jsonwebtoken/package.json new file mode 100644 index 000000000..81f78da07 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/package.json @@ -0,0 +1,71 @@ +{ + "name": "jsonwebtoken", + "version": "9.0.2", + "description": "JSON Web Token implementation (symmetric and asymmetric)", + "main": "index.js", + "nyc": { + "check-coverage": true, + "lines": 95, + "statements": 95, + "functions": 100, + "branches": 95, + "exclude": [ + "./test/**" + ], + "reporter": [ + "json", + "lcov", + "text-summary" + ] + }, + "scripts": { + "lint": "eslint .", + "coverage": "nyc mocha --use_strict", + "test": "npm run lint && npm run coverage && cost-of-modules" + }, + "repository": { + "type": "git", + "url": "https://github.com/auth0/node-jsonwebtoken" + }, + "keywords": [ + "jwt" + ], + "author": "auth0", + "license": "MIT", + "bugs": { + "url": "https://github.com/auth0/node-jsonwebtoken/issues" + }, + "dependencies": { + "jws": "^3.2.2", + "lodash.includes": "^4.3.0", + "lodash.isboolean": "^3.0.3", + "lodash.isinteger": "^4.0.4", + "lodash.isnumber": "^3.0.3", + "lodash.isplainobject": "^4.0.6", + "lodash.isstring": "^4.0.1", + "lodash.once": "^4.0.0", + "ms": "^2.1.1", + "semver": "^7.5.4" + }, + "devDependencies": { + "atob": "^2.1.2", + "chai": "^4.1.2", + "conventional-changelog": "~1.1.0", + "cost-of-modules": "^1.0.1", + "eslint": "^4.19.1", + "mocha": "^5.2.0", + "nsp": "^2.6.2", + "nyc": "^11.9.0", + "sinon": "^6.0.0" + }, + "engines": { + "npm": ">=6", + "node": ">=12" + }, + "files": [ + "lib", + "decode.js", + "sign.js", + "verify.js" + ] +} diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/sign.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/sign.js new file mode 100644 index 000000000..82bf526e2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/sign.js @@ -0,0 +1,253 @@ +const timespan = require('./lib/timespan'); +const PS_SUPPORTED = require('./lib/psSupported'); +const validateAsymmetricKey = require('./lib/validateAsymmetricKey'); +const jws = require('jws'); +const includes = require('lodash.includes'); +const isBoolean = require('lodash.isboolean'); +const isInteger = require('lodash.isinteger'); +const isNumber = require('lodash.isnumber'); +const isPlainObject = require('lodash.isplainobject'); +const isString = require('lodash.isstring'); +const once = require('lodash.once'); +const { KeyObject, createSecretKey, createPrivateKey } = require('crypto') + +const SUPPORTED_ALGS = ['RS256', 'RS384', 'RS512', 'ES256', 'ES384', 'ES512', 'HS256', 'HS384', 'HS512', 'none']; +if (PS_SUPPORTED) { + SUPPORTED_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512'); +} + +const sign_options_schema = { + expiresIn: { isValid: function(value) { return isInteger(value) || (isString(value) && value); }, message: '"expiresIn" should be a number of seconds or string representing a timespan' }, + notBefore: { isValid: function(value) { return isInteger(value) || (isString(value) && value); }, message: '"notBefore" should be a number of seconds or string representing a timespan' }, + audience: { isValid: function(value) { return isString(value) || Array.isArray(value); }, message: '"audience" must be a string or array' }, + algorithm: { isValid: includes.bind(null, SUPPORTED_ALGS), message: '"algorithm" must be a valid string enum value' }, + header: { isValid: isPlainObject, message: '"header" must be an object' }, + encoding: { isValid: isString, message: '"encoding" must be a string' }, + issuer: { isValid: isString, message: '"issuer" must be a string' }, + subject: { isValid: isString, message: '"subject" must be a string' }, + jwtid: { isValid: isString, message: '"jwtid" must be a string' }, + noTimestamp: { isValid: isBoolean, message: '"noTimestamp" must be a boolean' }, + keyid: { isValid: isString, message: '"keyid" must be a string' }, + mutatePayload: { isValid: isBoolean, message: '"mutatePayload" must be a boolean' }, + allowInsecureKeySizes: { isValid: isBoolean, message: '"allowInsecureKeySizes" must be a boolean'}, + allowInvalidAsymmetricKeyTypes: { isValid: isBoolean, message: '"allowInvalidAsymmetricKeyTypes" must be a boolean'} +}; + +const registered_claims_schema = { + iat: { isValid: isNumber, message: '"iat" should be a number of seconds' }, + exp: { isValid: isNumber, message: '"exp" should be a number of seconds' }, + nbf: { isValid: isNumber, message: '"nbf" should be a number of seconds' } +}; + +function validate(schema, allowUnknown, object, parameterName) { + if (!isPlainObject(object)) { + throw new Error('Expected "' + parameterName + '" to be a plain object.'); + } + Object.keys(object) + .forEach(function(key) { + const validator = schema[key]; + if (!validator) { + if (!allowUnknown) { + throw new Error('"' + key + '" is not allowed in "' + parameterName + '"'); + } + return; + } + if (!validator.isValid(object[key])) { + throw new Error(validator.message); + } + }); +} + +function validateOptions(options) { + return validate(sign_options_schema, false, options, 'options'); +} + +function validatePayload(payload) { + return validate(registered_claims_schema, true, payload, 'payload'); +} + +const options_to_payload = { + 'audience': 'aud', + 'issuer': 'iss', + 'subject': 'sub', + 'jwtid': 'jti' +}; + +const options_for_objects = [ + 'expiresIn', + 'notBefore', + 'noTimestamp', + 'audience', + 'issuer', + 'subject', + 'jwtid', +]; + +module.exports = function (payload, secretOrPrivateKey, options, callback) { + if (typeof options === 'function') { + callback = options; + options = {}; + } else { + options = options || {}; + } + + const isObjectPayload = typeof payload === 'object' && + !Buffer.isBuffer(payload); + + const header = Object.assign({ + alg: options.algorithm || 'HS256', + typ: isObjectPayload ? 'JWT' : undefined, + kid: options.keyid + }, options.header); + + function failure(err) { + if (callback) { + return callback(err); + } + throw err; + } + + if (!secretOrPrivateKey && options.algorithm !== 'none') { + return failure(new Error('secretOrPrivateKey must have a value')); + } + + if (secretOrPrivateKey != null && !(secretOrPrivateKey instanceof KeyObject)) { + try { + secretOrPrivateKey = createPrivateKey(secretOrPrivateKey) + } catch (_) { + try { + secretOrPrivateKey = createSecretKey(typeof secretOrPrivateKey === 'string' ? Buffer.from(secretOrPrivateKey) : secretOrPrivateKey) + } catch (_) { + return failure(new Error('secretOrPrivateKey is not valid key material')); + } + } + } + + if (header.alg.startsWith('HS') && secretOrPrivateKey.type !== 'secret') { + return failure(new Error((`secretOrPrivateKey must be a symmetric key when using ${header.alg}`))) + } else if (/^(?:RS|PS|ES)/.test(header.alg)) { + if (secretOrPrivateKey.type !== 'private') { + return failure(new Error((`secretOrPrivateKey must be an asymmetric key when using ${header.alg}`))) + } + if (!options.allowInsecureKeySizes && + !header.alg.startsWith('ES') && + secretOrPrivateKey.asymmetricKeyDetails !== undefined && //KeyObject.asymmetricKeyDetails is supported in Node 15+ + secretOrPrivateKey.asymmetricKeyDetails.modulusLength < 2048) { + return failure(new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`)); + } + } + + if (typeof payload === 'undefined') { + return failure(new Error('payload is required')); + } else if (isObjectPayload) { + try { + validatePayload(payload); + } + catch (error) { + return failure(error); + } + if (!options.mutatePayload) { + payload = Object.assign({},payload); + } + } else { + const invalid_options = options_for_objects.filter(function (opt) { + return typeof options[opt] !== 'undefined'; + }); + + if (invalid_options.length > 0) { + return failure(new Error('invalid ' + invalid_options.join(',') + ' option for ' + (typeof payload ) + ' payload')); + } + } + + if (typeof payload.exp !== 'undefined' && typeof options.expiresIn !== 'undefined') { + return failure(new Error('Bad "options.expiresIn" option the payload already has an "exp" property.')); + } + + if (typeof payload.nbf !== 'undefined' && typeof options.notBefore !== 'undefined') { + return failure(new Error('Bad "options.notBefore" option the payload already has an "nbf" property.')); + } + + try { + validateOptions(options); + } + catch (error) { + return failure(error); + } + + if (!options.allowInvalidAsymmetricKeyTypes) { + try { + validateAsymmetricKey(header.alg, secretOrPrivateKey); + } catch (error) { + return failure(error); + } + } + + const timestamp = payload.iat || Math.floor(Date.now() / 1000); + + if (options.noTimestamp) { + delete payload.iat; + } else if (isObjectPayload) { + payload.iat = timestamp; + } + + if (typeof options.notBefore !== 'undefined') { + try { + payload.nbf = timespan(options.notBefore, timestamp); + } + catch (err) { + return failure(err); + } + if (typeof payload.nbf === 'undefined') { + return failure(new Error('"notBefore" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60')); + } + } + + if (typeof options.expiresIn !== 'undefined' && typeof payload === 'object') { + try { + payload.exp = timespan(options.expiresIn, timestamp); + } + catch (err) { + return failure(err); + } + if (typeof payload.exp === 'undefined') { + return failure(new Error('"expiresIn" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60')); + } + } + + Object.keys(options_to_payload).forEach(function (key) { + const claim = options_to_payload[key]; + if (typeof options[key] !== 'undefined') { + if (typeof payload[claim] !== 'undefined') { + return failure(new Error('Bad "options.' + key + '" option. The payload already has an "' + claim + '" property.')); + } + payload[claim] = options[key]; + } + }); + + const encoding = options.encoding || 'utf8'; + + if (typeof callback === 'function') { + callback = callback && once(callback); + + jws.createSign({ + header: header, + privateKey: secretOrPrivateKey, + payload: payload, + encoding: encoding + }).once('error', callback) + .once('done', function (signature) { + // TODO: Remove in favor of the modulus length check before signing once node 15+ is the minimum supported version + if(!options.allowInsecureKeySizes && /^(?:RS|PS)/.test(header.alg) && signature.length < 256) { + return callback(new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`)) + } + callback(null, signature); + }); + } else { + let signature = jws.sign({header: header, payload: payload, secret: secretOrPrivateKey, encoding: encoding}); + // TODO: Remove in favor of the modulus length check before signing once node 15+ is the minimum supported version + if(!options.allowInsecureKeySizes && /^(?:RS|PS)/.test(header.alg) && signature.length < 256) { + throw new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`) + } + return signature + } +}; diff --git a/week-3/04-course-app-hard/node_modules/jsonwebtoken/verify.js b/week-3/04-course-app-hard/node_modules/jsonwebtoken/verify.js new file mode 100644 index 000000000..cdbfdc45f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jsonwebtoken/verify.js @@ -0,0 +1,263 @@ +const JsonWebTokenError = require('./lib/JsonWebTokenError'); +const NotBeforeError = require('./lib/NotBeforeError'); +const TokenExpiredError = require('./lib/TokenExpiredError'); +const decode = require('./decode'); +const timespan = require('./lib/timespan'); +const validateAsymmetricKey = require('./lib/validateAsymmetricKey'); +const PS_SUPPORTED = require('./lib/psSupported'); +const jws = require('jws'); +const {KeyObject, createSecretKey, createPublicKey} = require("crypto"); + +const PUB_KEY_ALGS = ['RS256', 'RS384', 'RS512']; +const EC_KEY_ALGS = ['ES256', 'ES384', 'ES512']; +const RSA_KEY_ALGS = ['RS256', 'RS384', 'RS512']; +const HS_ALGS = ['HS256', 'HS384', 'HS512']; + +if (PS_SUPPORTED) { + PUB_KEY_ALGS.splice(PUB_KEY_ALGS.length, 0, 'PS256', 'PS384', 'PS512'); + RSA_KEY_ALGS.splice(RSA_KEY_ALGS.length, 0, 'PS256', 'PS384', 'PS512'); +} + +module.exports = function (jwtString, secretOrPublicKey, options, callback) { + if ((typeof options === 'function') && !callback) { + callback = options; + options = {}; + } + + if (!options) { + options = {}; + } + + //clone this object since we are going to mutate it. + options = Object.assign({}, options); + + let done; + + if (callback) { + done = callback; + } else { + done = function(err, data) { + if (err) throw err; + return data; + }; + } + + if (options.clockTimestamp && typeof options.clockTimestamp !== 'number') { + return done(new JsonWebTokenError('clockTimestamp must be a number')); + } + + if (options.nonce !== undefined && (typeof options.nonce !== 'string' || options.nonce.trim() === '')) { + return done(new JsonWebTokenError('nonce must be a non-empty string')); + } + + if (options.allowInvalidAsymmetricKeyTypes !== undefined && typeof options.allowInvalidAsymmetricKeyTypes !== 'boolean') { + return done(new JsonWebTokenError('allowInvalidAsymmetricKeyTypes must be a boolean')); + } + + const clockTimestamp = options.clockTimestamp || Math.floor(Date.now() / 1000); + + if (!jwtString){ + return done(new JsonWebTokenError('jwt must be provided')); + } + + if (typeof jwtString !== 'string') { + return done(new JsonWebTokenError('jwt must be a string')); + } + + const parts = jwtString.split('.'); + + if (parts.length !== 3){ + return done(new JsonWebTokenError('jwt malformed')); + } + + let decodedToken; + + try { + decodedToken = decode(jwtString, { complete: true }); + } catch(err) { + return done(err); + } + + if (!decodedToken) { + return done(new JsonWebTokenError('invalid token')); + } + + const header = decodedToken.header; + let getSecret; + + if(typeof secretOrPublicKey === 'function') { + if(!callback) { + return done(new JsonWebTokenError('verify must be called asynchronous if secret or public key is provided as a callback')); + } + + getSecret = secretOrPublicKey; + } + else { + getSecret = function(header, secretCallback) { + return secretCallback(null, secretOrPublicKey); + }; + } + + return getSecret(header, function(err, secretOrPublicKey) { + if(err) { + return done(new JsonWebTokenError('error in secret or public key callback: ' + err.message)); + } + + const hasSignature = parts[2].trim() !== ''; + + if (!hasSignature && secretOrPublicKey){ + return done(new JsonWebTokenError('jwt signature is required')); + } + + if (hasSignature && !secretOrPublicKey) { + return done(new JsonWebTokenError('secret or public key must be provided')); + } + + if (!hasSignature && !options.algorithms) { + return done(new JsonWebTokenError('please specify "none" in "algorithms" to verify unsigned tokens')); + } + + if (secretOrPublicKey != null && !(secretOrPublicKey instanceof KeyObject)) { + try { + secretOrPublicKey = createPublicKey(secretOrPublicKey); + } catch (_) { + try { + secretOrPublicKey = createSecretKey(typeof secretOrPublicKey === 'string' ? Buffer.from(secretOrPublicKey) : secretOrPublicKey); + } catch (_) { + return done(new JsonWebTokenError('secretOrPublicKey is not valid key material')) + } + } + } + + if (!options.algorithms) { + if (secretOrPublicKey.type === 'secret') { + options.algorithms = HS_ALGS; + } else if (['rsa', 'rsa-pss'].includes(secretOrPublicKey.asymmetricKeyType)) { + options.algorithms = RSA_KEY_ALGS + } else if (secretOrPublicKey.asymmetricKeyType === 'ec') { + options.algorithms = EC_KEY_ALGS + } else { + options.algorithms = PUB_KEY_ALGS + } + } + + if (options.algorithms.indexOf(decodedToken.header.alg) === -1) { + return done(new JsonWebTokenError('invalid algorithm')); + } + + if (header.alg.startsWith('HS') && secretOrPublicKey.type !== 'secret') { + return done(new JsonWebTokenError((`secretOrPublicKey must be a symmetric key when using ${header.alg}`))) + } else if (/^(?:RS|PS|ES)/.test(header.alg) && secretOrPublicKey.type !== 'public') { + return done(new JsonWebTokenError((`secretOrPublicKey must be an asymmetric key when using ${header.alg}`))) + } + + if (!options.allowInvalidAsymmetricKeyTypes) { + try { + validateAsymmetricKey(header.alg, secretOrPublicKey); + } catch (e) { + return done(e); + } + } + + let valid; + + try { + valid = jws.verify(jwtString, decodedToken.header.alg, secretOrPublicKey); + } catch (e) { + return done(e); + } + + if (!valid) { + return done(new JsonWebTokenError('invalid signature')); + } + + const payload = decodedToken.payload; + + if (typeof payload.nbf !== 'undefined' && !options.ignoreNotBefore) { + if (typeof payload.nbf !== 'number') { + return done(new JsonWebTokenError('invalid nbf value')); + } + if (payload.nbf > clockTimestamp + (options.clockTolerance || 0)) { + return done(new NotBeforeError('jwt not active', new Date(payload.nbf * 1000))); + } + } + + if (typeof payload.exp !== 'undefined' && !options.ignoreExpiration) { + if (typeof payload.exp !== 'number') { + return done(new JsonWebTokenError('invalid exp value')); + } + if (clockTimestamp >= payload.exp + (options.clockTolerance || 0)) { + return done(new TokenExpiredError('jwt expired', new Date(payload.exp * 1000))); + } + } + + if (options.audience) { + const audiences = Array.isArray(options.audience) ? options.audience : [options.audience]; + const target = Array.isArray(payload.aud) ? payload.aud : [payload.aud]; + + const match = target.some(function (targetAudience) { + return audiences.some(function (audience) { + return audience instanceof RegExp ? audience.test(targetAudience) : audience === targetAudience; + }); + }); + + if (!match) { + return done(new JsonWebTokenError('jwt audience invalid. expected: ' + audiences.join(' or '))); + } + } + + if (options.issuer) { + const invalid_issuer = + (typeof options.issuer === 'string' && payload.iss !== options.issuer) || + (Array.isArray(options.issuer) && options.issuer.indexOf(payload.iss) === -1); + + if (invalid_issuer) { + return done(new JsonWebTokenError('jwt issuer invalid. expected: ' + options.issuer)); + } + } + + if (options.subject) { + if (payload.sub !== options.subject) { + return done(new JsonWebTokenError('jwt subject invalid. expected: ' + options.subject)); + } + } + + if (options.jwtid) { + if (payload.jti !== options.jwtid) { + return done(new JsonWebTokenError('jwt jwtid invalid. expected: ' + options.jwtid)); + } + } + + if (options.nonce) { + if (payload.nonce !== options.nonce) { + return done(new JsonWebTokenError('jwt nonce invalid. expected: ' + options.nonce)); + } + } + + if (options.maxAge) { + if (typeof payload.iat !== 'number') { + return done(new JsonWebTokenError('iat required when maxAge is specified')); + } + + const maxAgeTimestamp = timespan(options.maxAge, payload.iat); + if (typeof maxAgeTimestamp === 'undefined') { + return done(new JsonWebTokenError('"maxAge" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60')); + } + if (clockTimestamp >= maxAgeTimestamp + (options.clockTolerance || 0)) { + return done(new TokenExpiredError('maxAge exceeded', new Date(maxAgeTimestamp * 1000))); + } + } + + if (options.complete === true) { + const signature = decodedToken.signature; + + return done(null, { + header: header, + payload: payload, + signature: signature + }); + } + + return done(null, payload); + }); +}; diff --git a/week-3/04-course-app-hard/node_modules/jwa/LICENSE b/week-3/04-course-app-hard/node_modules/jwa/LICENSE new file mode 100644 index 000000000..caeb8495c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jwa/LICENSE @@ -0,0 +1,17 @@ +Copyright (c) 2013 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the +Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/jwa/README.md b/week-3/04-course-app-hard/node_modules/jwa/README.md new file mode 100644 index 000000000..fb433e238 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jwa/README.md @@ -0,0 +1,150 @@ +# node-jwa [![Build Status](https://travis-ci.org/brianloveswords/node-jwa.svg?branch=master)](https://travis-ci.org/brianloveswords/node-jwa) + +A +[JSON Web Algorithms](http://tools.ietf.org/id/draft-ietf-jose-json-web-algorithms-08.html) +implementation focusing (exclusively, at this point) on the algorithms necessary for +[JSON Web Signatures](http://self-issued.info/docs/draft-ietf-jose-json-web-signature.html). + +This library supports all of the required, recommended and optional cryptographic algorithms for JWS: + +alg Parameter Value | Digital Signature or MAC Algorithm +----------------|---------------------------- +HS256 | HMAC using SHA-256 hash algorithm +HS384 | HMAC using SHA-384 hash algorithm +HS512 | HMAC using SHA-512 hash algorithm +RS256 | RSASSA using SHA-256 hash algorithm +RS384 | RSASSA using SHA-384 hash algorithm +RS512 | RSASSA using SHA-512 hash algorithm +PS256 | RSASSA-PSS using SHA-256 hash algorithm +PS384 | RSASSA-PSS using SHA-384 hash algorithm +PS512 | RSASSA-PSS using SHA-512 hash algorithm +ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm +ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm +ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm +none | No digital signature or MAC value included + +Please note that PS* only works on Node 6.12+ (excluding 7.x). + +# Requirements + +In order to run the tests, a recent version of OpenSSL is +required. **The version that comes with OS X (OpenSSL 0.9.8r 8 Feb +2011) is not recent enough**, as it does not fully support ECDSA +keys. You'll need to use a version > 1.0.0; I tested with OpenSSL 1.0.1c 10 May 2012. + +# Testing + +To run the tests, do + +```bash +$ npm test +``` + +This will generate a bunch of keypairs to use in testing. If you want to +generate new keypairs, do `make clean` before running `npm test` again. + +## Methodology + +I spawn `openssl dgst -sign` to test OpenSSL sign → JS verify and +`openssl dgst -verify` to test JS sign → OpenSSL verify for each of the +RSA and ECDSA algorithms. + +# Usage + +## jwa(algorithm) + +Creates a new `jwa` object with `sign` and `verify` methods for the +algorithm. Valid values for algorithm can be found in the table above +(`'HS256'`, `'HS384'`, etc) and are case-insensitive. Passing an invalid +algorithm value will throw a `TypeError`. + + +## jwa#sign(input, secretOrPrivateKey) + +Sign some input with either a secret for HMAC algorithms, or a private +key for RSA and ECDSA algorithms. + +If input is not already a string or buffer, `JSON.stringify` will be +called on it to attempt to coerce it. + +For the HMAC algorithm, `secretOrPrivateKey` should be a string or a +buffer. For ECDSA and RSA, the value should be a string representing a +PEM encoded **private** key. + +Output [base64url](http://en.wikipedia.org/wiki/Base64#URL_applications) +formatted. This is for convenience as JWS expects the signature in this +format. If your application needs the output in a different format, +[please open an issue](https://github.com/brianloveswords/node-jwa/issues). In +the meantime, you can use +[brianloveswords/base64url](https://github.com/brianloveswords/base64url) +to decode the signature. + +As of nodejs *v0.11.8*, SPKAC support was introduce. If your nodeJs +version satisfies, then you can pass an object `{ key: '..', passphrase: '...' }` + + +## jwa#verify(input, signature, secretOrPublicKey) + +Verify a signature. Returns `true` or `false`. + +`signature` should be a base64url encoded string. + +For the HMAC algorithm, `secretOrPublicKey` should be a string or a +buffer. For ECDSA and RSA, the value should be a string represented a +PEM encoded **public** key. + + +# Example + +HMAC +```js +const jwa = require('jwa'); + +const hmac = jwa('HS256'); +const input = 'super important stuff'; +const secret = 'shhhhhh'; + +const signature = hmac.sign(input, secret); +hmac.verify(input, signature, secret) // === true +hmac.verify(input, signature, 'trickery!') // === false +``` + +With keys +```js +const fs = require('fs'); +const jwa = require('jwa'); +const privateKey = fs.readFileSync(__dirname + '/ecdsa-p521-private.pem'); +const publicKey = fs.readFileSync(__dirname + '/ecdsa-p521-public.pem'); + +const ecdsa = jwa('ES512'); +const input = 'very important stuff'; + +const signature = ecdsa.sign(input, privateKey); +ecdsa.verify(input, signature, publicKey) // === true +``` +## License + +MIT + +``` +Copyright (c) 2013 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +``` diff --git a/week-3/04-course-app-hard/node_modules/jwa/index.js b/week-3/04-course-app-hard/node_modules/jwa/index.js new file mode 100644 index 000000000..e71e6d19e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jwa/index.js @@ -0,0 +1,252 @@ +var bufferEqual = require('buffer-equal-constant-time'); +var Buffer = require('safe-buffer').Buffer; +var crypto = require('crypto'); +var formatEcdsa = require('ecdsa-sig-formatter'); +var util = require('util'); + +var MSG_INVALID_ALGORITHM = '"%s" is not a valid algorithm.\n Supported algorithms are:\n "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "PS256", "PS384", "PS512", "ES256", "ES384", "ES512" and "none".' +var MSG_INVALID_SECRET = 'secret must be a string or buffer'; +var MSG_INVALID_VERIFIER_KEY = 'key must be a string or a buffer'; +var MSG_INVALID_SIGNER_KEY = 'key must be a string, a buffer or an object'; + +var supportsKeyObjects = typeof crypto.createPublicKey === 'function'; +if (supportsKeyObjects) { + MSG_INVALID_VERIFIER_KEY += ' or a KeyObject'; + MSG_INVALID_SECRET += 'or a KeyObject'; +} + +function checkIsPublicKey(key) { + if (Buffer.isBuffer(key)) { + return; + } + + if (typeof key === 'string') { + return; + } + + if (!supportsKeyObjects) { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key !== 'object') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key.type !== 'string') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key.asymmetricKeyType !== 'string') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } + + if (typeof key.export !== 'function') { + throw typeError(MSG_INVALID_VERIFIER_KEY); + } +}; + +function checkIsPrivateKey(key) { + if (Buffer.isBuffer(key)) { + return; + } + + if (typeof key === 'string') { + return; + } + + if (typeof key === 'object') { + return; + } + + throw typeError(MSG_INVALID_SIGNER_KEY); +}; + +function checkIsSecretKey(key) { + if (Buffer.isBuffer(key)) { + return; + } + + if (typeof key === 'string') { + return key; + } + + if (!supportsKeyObjects) { + throw typeError(MSG_INVALID_SECRET); + } + + if (typeof key !== 'object') { + throw typeError(MSG_INVALID_SECRET); + } + + if (key.type !== 'secret') { + throw typeError(MSG_INVALID_SECRET); + } + + if (typeof key.export !== 'function') { + throw typeError(MSG_INVALID_SECRET); + } +} + +function fromBase64(base64) { + return base64 + .replace(/=/g, '') + .replace(/\+/g, '-') + .replace(/\//g, '_'); +} + +function toBase64(base64url) { + base64url = base64url.toString(); + + var padding = 4 - base64url.length % 4; + if (padding !== 4) { + for (var i = 0; i < padding; ++i) { + base64url += '='; + } + } + + return base64url + .replace(/\-/g, '+') + .replace(/_/g, '/'); +} + +function typeError(template) { + var args = [].slice.call(arguments, 1); + var errMsg = util.format.bind(util, template).apply(null, args); + return new TypeError(errMsg); +} + +function bufferOrString(obj) { + return Buffer.isBuffer(obj) || typeof obj === 'string'; +} + +function normalizeInput(thing) { + if (!bufferOrString(thing)) + thing = JSON.stringify(thing); + return thing; +} + +function createHmacSigner(bits) { + return function sign(thing, secret) { + checkIsSecretKey(secret); + thing = normalizeInput(thing); + var hmac = crypto.createHmac('sha' + bits, secret); + var sig = (hmac.update(thing), hmac.digest('base64')) + return fromBase64(sig); + } +} + +function createHmacVerifier(bits) { + return function verify(thing, signature, secret) { + var computedSig = createHmacSigner(bits)(thing, secret); + return bufferEqual(Buffer.from(signature), Buffer.from(computedSig)); + } +} + +function createKeySigner(bits) { + return function sign(thing, privateKey) { + checkIsPrivateKey(privateKey); + thing = normalizeInput(thing); + // Even though we are specifying "RSA" here, this works with ECDSA + // keys as well. + var signer = crypto.createSign('RSA-SHA' + bits); + var sig = (signer.update(thing), signer.sign(privateKey, 'base64')); + return fromBase64(sig); + } +} + +function createKeyVerifier(bits) { + return function verify(thing, signature, publicKey) { + checkIsPublicKey(publicKey); + thing = normalizeInput(thing); + signature = toBase64(signature); + var verifier = crypto.createVerify('RSA-SHA' + bits); + verifier.update(thing); + return verifier.verify(publicKey, signature, 'base64'); + } +} + +function createPSSKeySigner(bits) { + return function sign(thing, privateKey) { + checkIsPrivateKey(privateKey); + thing = normalizeInput(thing); + var signer = crypto.createSign('RSA-SHA' + bits); + var sig = (signer.update(thing), signer.sign({ + key: privateKey, + padding: crypto.constants.RSA_PKCS1_PSS_PADDING, + saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST + }, 'base64')); + return fromBase64(sig); + } +} + +function createPSSKeyVerifier(bits) { + return function verify(thing, signature, publicKey) { + checkIsPublicKey(publicKey); + thing = normalizeInput(thing); + signature = toBase64(signature); + var verifier = crypto.createVerify('RSA-SHA' + bits); + verifier.update(thing); + return verifier.verify({ + key: publicKey, + padding: crypto.constants.RSA_PKCS1_PSS_PADDING, + saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST + }, signature, 'base64'); + } +} + +function createECDSASigner(bits) { + var inner = createKeySigner(bits); + return function sign() { + var signature = inner.apply(null, arguments); + signature = formatEcdsa.derToJose(signature, 'ES' + bits); + return signature; + }; +} + +function createECDSAVerifer(bits) { + var inner = createKeyVerifier(bits); + return function verify(thing, signature, publicKey) { + signature = formatEcdsa.joseToDer(signature, 'ES' + bits).toString('base64'); + var result = inner(thing, signature, publicKey); + return result; + }; +} + +function createNoneSigner() { + return function sign() { + return ''; + } +} + +function createNoneVerifier() { + return function verify(thing, signature) { + return signature === ''; + } +} + +module.exports = function jwa(algorithm) { + var signerFactories = { + hs: createHmacSigner, + rs: createKeySigner, + ps: createPSSKeySigner, + es: createECDSASigner, + none: createNoneSigner, + } + var verifierFactories = { + hs: createHmacVerifier, + rs: createKeyVerifier, + ps: createPSSKeyVerifier, + es: createECDSAVerifer, + none: createNoneVerifier, + } + var match = algorithm.match(/^(RS|PS|ES|HS)(256|384|512)$|^(none)$/i); + if (!match) + throw typeError(MSG_INVALID_ALGORITHM, algorithm); + var algo = (match[1] || match[3]).toLowerCase(); + var bits = match[2]; + + return { + sign: signerFactories[algo](bits), + verify: verifierFactories[algo](bits), + } +}; diff --git a/week-3/04-course-app-hard/node_modules/jwa/package.json b/week-3/04-course-app-hard/node_modules/jwa/package.json new file mode 100644 index 000000000..0777d5339 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jwa/package.json @@ -0,0 +1,37 @@ +{ + "name": "jwa", + "version": "1.4.1", + "description": "JWA implementation (supports all JWS algorithms)", + "main": "index.js", + "directories": { + "test": "test" + }, + "dependencies": { + "buffer-equal-constant-time": "1.0.1", + "ecdsa-sig-formatter": "1.0.11", + "safe-buffer": "^5.0.1" + }, + "devDependencies": { + "base64url": "^2.0.0", + "jwk-to-pem": "^2.0.1", + "semver": "4.3.6", + "tap": "6.2.0" + }, + "scripts": { + "test": "make test" + }, + "repository": { + "type": "git", + "url": "git://github.com/brianloveswords/node-jwa.git" + }, + "keywords": [ + "jwa", + "jws", + "jwt", + "rsa", + "ecdsa", + "hmac" + ], + "author": "Brian J. Brennan ", + "license": "MIT" +} diff --git a/week-3/04-course-app-hard/node_modules/jws/CHANGELOG.md b/week-3/04-course-app-hard/node_modules/jws/CHANGELOG.md new file mode 100644 index 000000000..af8fc2876 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/CHANGELOG.md @@ -0,0 +1,34 @@ +# Change Log +All notable changes to this project will be documented in this file. + +## [3.0.0] +### Changed +- **BREAKING**: `jwt.verify` now requires an `algorithm` parameter, and + `jws.createVerify` requires an `algorithm` option. The `"alg"` field + signature headers is ignored. This mitigates a critical security flaw + in the library which would allow an attacker to generate signatures with + arbitrary contents that would be accepted by `jwt.verify`. See + https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/ + for details. + +## [2.0.0] - 2015-01-30 +### Changed +- **BREAKING**: Default payload encoding changed from `binary` to + `utf8`. `utf8` is a is a more sensible default than `binary` because + many payloads, as far as I can tell, will contain user-facing + strings that could be in any language. ([6b6de48]) + +- Code reorganization, thanks [@fearphage]! ([7880050]) + +### Added +- Option in all relevant methods for `encoding`. For those few users + that might be depending on a `binary` encoding of the messages, this + is for them. ([6b6de48]) + +[unreleased]: https://github.com/brianloveswords/node-jws/compare/v2.0.0...HEAD +[2.0.0]: https://github.com/brianloveswords/node-jws/compare/v1.0.1...v2.0.0 + +[7880050]: https://github.com/brianloveswords/node-jws/commit/7880050 +[6b6de48]: https://github.com/brianloveswords/node-jws/commit/6b6de48 + +[@fearphage]: https://github.com/fearphage diff --git a/week-3/04-course-app-hard/node_modules/jws/LICENSE b/week-3/04-course-app-hard/node_modules/jws/LICENSE new file mode 100644 index 000000000..caeb8495c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/LICENSE @@ -0,0 +1,17 @@ +Copyright (c) 2013 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the +Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/jws/index.js b/week-3/04-course-app-hard/node_modules/jws/index.js new file mode 100644 index 000000000..8c8da9304 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/index.js @@ -0,0 +1,22 @@ +/*global exports*/ +var SignStream = require('./lib/sign-stream'); +var VerifyStream = require('./lib/verify-stream'); + +var ALGORITHMS = [ + 'HS256', 'HS384', 'HS512', + 'RS256', 'RS384', 'RS512', + 'PS256', 'PS384', 'PS512', + 'ES256', 'ES384', 'ES512' +]; + +exports.ALGORITHMS = ALGORITHMS; +exports.sign = SignStream.sign; +exports.verify = VerifyStream.verify; +exports.decode = VerifyStream.decode; +exports.isValid = VerifyStream.isValid; +exports.createSign = function createSign(opts) { + return new SignStream(opts); +}; +exports.createVerify = function createVerify(opts) { + return new VerifyStream(opts); +}; diff --git a/week-3/04-course-app-hard/node_modules/jws/lib/data-stream.js b/week-3/04-course-app-hard/node_modules/jws/lib/data-stream.js new file mode 100644 index 000000000..3535d31d9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/lib/data-stream.js @@ -0,0 +1,55 @@ +/*global module, process*/ +var Buffer = require('safe-buffer').Buffer; +var Stream = require('stream'); +var util = require('util'); + +function DataStream(data) { + this.buffer = null; + this.writable = true; + this.readable = true; + + // No input + if (!data) { + this.buffer = Buffer.alloc(0); + return this; + } + + // Stream + if (typeof data.pipe === 'function') { + this.buffer = Buffer.alloc(0); + data.pipe(this); + return this; + } + + // Buffer or String + // or Object (assumedly a passworded key) + if (data.length || typeof data === 'object') { + this.buffer = data; + this.writable = false; + process.nextTick(function () { + this.emit('end', data); + this.readable = false; + this.emit('close'); + }.bind(this)); + return this; + } + + throw new TypeError('Unexpected data type ('+ typeof data + ')'); +} +util.inherits(DataStream, Stream); + +DataStream.prototype.write = function write(data) { + this.buffer = Buffer.concat([this.buffer, Buffer.from(data)]); + this.emit('data', data); +}; + +DataStream.prototype.end = function end(data) { + if (data) + this.write(data); + this.emit('end', data); + this.emit('close'); + this.writable = false; + this.readable = false; +}; + +module.exports = DataStream; diff --git a/week-3/04-course-app-hard/node_modules/jws/lib/sign-stream.js b/week-3/04-course-app-hard/node_modules/jws/lib/sign-stream.js new file mode 100644 index 000000000..6a7ee42f2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/lib/sign-stream.js @@ -0,0 +1,78 @@ +/*global module*/ +var Buffer = require('safe-buffer').Buffer; +var DataStream = require('./data-stream'); +var jwa = require('jwa'); +var Stream = require('stream'); +var toString = require('./tostring'); +var util = require('util'); + +function base64url(string, encoding) { + return Buffer + .from(string, encoding) + .toString('base64') + .replace(/=/g, '') + .replace(/\+/g, '-') + .replace(/\//g, '_'); +} + +function jwsSecuredInput(header, payload, encoding) { + encoding = encoding || 'utf8'; + var encodedHeader = base64url(toString(header), 'binary'); + var encodedPayload = base64url(toString(payload), encoding); + return util.format('%s.%s', encodedHeader, encodedPayload); +} + +function jwsSign(opts) { + var header = opts.header; + var payload = opts.payload; + var secretOrKey = opts.secret || opts.privateKey; + var encoding = opts.encoding; + var algo = jwa(header.alg); + var securedInput = jwsSecuredInput(header, payload, encoding); + var signature = algo.sign(securedInput, secretOrKey); + return util.format('%s.%s', securedInput, signature); +} + +function SignStream(opts) { + var secret = opts.secret||opts.privateKey||opts.key; + var secretStream = new DataStream(secret); + this.readable = true; + this.header = opts.header; + this.encoding = opts.encoding; + this.secret = this.privateKey = this.key = secretStream; + this.payload = new DataStream(opts.payload); + this.secret.once('close', function () { + if (!this.payload.writable && this.readable) + this.sign(); + }.bind(this)); + + this.payload.once('close', function () { + if (!this.secret.writable && this.readable) + this.sign(); + }.bind(this)); +} +util.inherits(SignStream, Stream); + +SignStream.prototype.sign = function sign() { + try { + var signature = jwsSign({ + header: this.header, + payload: this.payload.buffer, + secret: this.secret.buffer, + encoding: this.encoding + }); + this.emit('done', signature); + this.emit('data', signature); + this.emit('end'); + this.readable = false; + return signature; + } catch (e) { + this.readable = false; + this.emit('error', e); + this.emit('close'); + } +}; + +SignStream.sign = jwsSign; + +module.exports = SignStream; diff --git a/week-3/04-course-app-hard/node_modules/jws/lib/tostring.js b/week-3/04-course-app-hard/node_modules/jws/lib/tostring.js new file mode 100644 index 000000000..f5a49a365 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/lib/tostring.js @@ -0,0 +1,10 @@ +/*global module*/ +var Buffer = require('buffer').Buffer; + +module.exports = function toString(obj) { + if (typeof obj === 'string') + return obj; + if (typeof obj === 'number' || Buffer.isBuffer(obj)) + return obj.toString(); + return JSON.stringify(obj); +}; diff --git a/week-3/04-course-app-hard/node_modules/jws/lib/verify-stream.js b/week-3/04-course-app-hard/node_modules/jws/lib/verify-stream.js new file mode 100644 index 000000000..39f7c73e2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/lib/verify-stream.js @@ -0,0 +1,120 @@ +/*global module*/ +var Buffer = require('safe-buffer').Buffer; +var DataStream = require('./data-stream'); +var jwa = require('jwa'); +var Stream = require('stream'); +var toString = require('./tostring'); +var util = require('util'); +var JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/; + +function isObject(thing) { + return Object.prototype.toString.call(thing) === '[object Object]'; +} + +function safeJsonParse(thing) { + if (isObject(thing)) + return thing; + try { return JSON.parse(thing); } + catch (e) { return undefined; } +} + +function headerFromJWS(jwsSig) { + var encodedHeader = jwsSig.split('.', 1)[0]; + return safeJsonParse(Buffer.from(encodedHeader, 'base64').toString('binary')); +} + +function securedInputFromJWS(jwsSig) { + return jwsSig.split('.', 2).join('.'); +} + +function signatureFromJWS(jwsSig) { + return jwsSig.split('.')[2]; +} + +function payloadFromJWS(jwsSig, encoding) { + encoding = encoding || 'utf8'; + var payload = jwsSig.split('.')[1]; + return Buffer.from(payload, 'base64').toString(encoding); +} + +function isValidJws(string) { + return JWS_REGEX.test(string) && !!headerFromJWS(string); +} + +function jwsVerify(jwsSig, algorithm, secretOrKey) { + if (!algorithm) { + var err = new Error("Missing algorithm parameter for jws.verify"); + err.code = "MISSING_ALGORITHM"; + throw err; + } + jwsSig = toString(jwsSig); + var signature = signatureFromJWS(jwsSig); + var securedInput = securedInputFromJWS(jwsSig); + var algo = jwa(algorithm); + return algo.verify(securedInput, signature, secretOrKey); +} + +function jwsDecode(jwsSig, opts) { + opts = opts || {}; + jwsSig = toString(jwsSig); + + if (!isValidJws(jwsSig)) + return null; + + var header = headerFromJWS(jwsSig); + + if (!header) + return null; + + var payload = payloadFromJWS(jwsSig); + if (header.typ === 'JWT' || opts.json) + payload = JSON.parse(payload, opts.encoding); + + return { + header: header, + payload: payload, + signature: signatureFromJWS(jwsSig) + }; +} + +function VerifyStream(opts) { + opts = opts || {}; + var secretOrKey = opts.secret||opts.publicKey||opts.key; + var secretStream = new DataStream(secretOrKey); + this.readable = true; + this.algorithm = opts.algorithm; + this.encoding = opts.encoding; + this.secret = this.publicKey = this.key = secretStream; + this.signature = new DataStream(opts.signature); + this.secret.once('close', function () { + if (!this.signature.writable && this.readable) + this.verify(); + }.bind(this)); + + this.signature.once('close', function () { + if (!this.secret.writable && this.readable) + this.verify(); + }.bind(this)); +} +util.inherits(VerifyStream, Stream); +VerifyStream.prototype.verify = function verify() { + try { + var valid = jwsVerify(this.signature.buffer, this.algorithm, this.key.buffer); + var obj = jwsDecode(this.signature.buffer, this.encoding); + this.emit('done', valid, obj); + this.emit('data', valid); + this.emit('end'); + this.readable = false; + return valid; + } catch (e) { + this.readable = false; + this.emit('error', e); + this.emit('close'); + } +}; + +VerifyStream.decode = jwsDecode; +VerifyStream.isValid = isValidJws; +VerifyStream.verify = jwsVerify; + +module.exports = VerifyStream; diff --git a/week-3/04-course-app-hard/node_modules/jws/package.json b/week-3/04-course-app-hard/node_modules/jws/package.json new file mode 100644 index 000000000..3fb283757 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/package.json @@ -0,0 +1,34 @@ +{ + "name": "jws", + "version": "3.2.2", + "description": "Implementation of JSON Web Signatures", + "main": "index.js", + "directories": { + "test": "test" + }, + "scripts": { + "test": "make test" + }, + "repository": { + "type": "git", + "url": "git://github.com/brianloveswords/node-jws.git" + }, + "keywords": [ + "jws", + "json", + "web", + "signatures" + ], + "author": "Brian J Brennan", + "license": "MIT", + "readmeFilename": "readme.md", + "gitHead": "c0f6b27bcea5a2ad2e304d91c2e842e4076a6b03", + "dependencies": { + "jwa": "^1.4.1", + "safe-buffer": "^5.0.1" + }, + "devDependencies": { + "semver": "^5.1.0", + "tape": "~2.14.0" + } +} diff --git a/week-3/04-course-app-hard/node_modules/jws/readme.md b/week-3/04-course-app-hard/node_modules/jws/readme.md new file mode 100644 index 000000000..1910c9a84 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/jws/readme.md @@ -0,0 +1,255 @@ +# node-jws [![Build Status](https://secure.travis-ci.org/brianloveswords/node-jws.png)](http://travis-ci.org/brianloveswords/node-jws) + +An implementation of [JSON Web Signatures](http://self-issued.info/docs/draft-ietf-jose-json-web-signature.html). + +This was developed against `draft-ietf-jose-json-web-signature-08` and +implements the entire spec **except** X.509 Certificate Chain +signing/verifying (patches welcome). + +There are both synchronous (`jws.sign`, `jws.verify`) and streaming +(`jws.createSign`, `jws.createVerify`) APIs. + +# Install + +```bash +$ npm install jws +``` + +# Usage + +## jws.ALGORITHMS + +Array of supported algorithms. The following algorithms are currently supported. + +alg Parameter Value | Digital Signature or MAC Algorithm +----------------|---------------------------- +HS256 | HMAC using SHA-256 hash algorithm +HS384 | HMAC using SHA-384 hash algorithm +HS512 | HMAC using SHA-512 hash algorithm +RS256 | RSASSA using SHA-256 hash algorithm +RS384 | RSASSA using SHA-384 hash algorithm +RS512 | RSASSA using SHA-512 hash algorithm +PS256 | RSASSA-PSS using SHA-256 hash algorithm +PS384 | RSASSA-PSS using SHA-384 hash algorithm +PS512 | RSASSA-PSS using SHA-512 hash algorithm +ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm +ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm +ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm +none | No digital signature or MAC value included + +## jws.sign(options) + +(Synchronous) Return a JSON Web Signature for a header and a payload. + +Options: + +* `header` +* `payload` +* `secret` or `privateKey` +* `encoding` (Optional, defaults to 'utf8') + +`header` must be an object with an `alg` property. `header.alg` must be +one a value found in `jws.ALGORITHMS`. See above for a table of +supported algorithms. + +If `payload` is not a buffer or a string, it will be coerced into a string +using `JSON.stringify`. + +Example + +```js +const signature = jws.sign({ + header: { alg: 'HS256' }, + payload: 'h. jon benjamin', + secret: 'has a van', +}); +``` + +## jws.verify(signature, algorithm, secretOrKey) + +(Synchronous) Returns `true` or `false` for whether a signature matches a +secret or key. + +`signature` is a JWS Signature. `header.alg` must be a value found in `jws.ALGORITHMS`. +See above for a table of supported algorithms. `secretOrKey` is a string or +buffer containing either the secret for HMAC algorithms, or the PEM +encoded public key for RSA and ECDSA. + +Note that the `"alg"` value from the signature header is ignored. + + +## jws.decode(signature) + +(Synchronous) Returns the decoded header, decoded payload, and signature +parts of the JWS Signature. + +Returns an object with three properties, e.g. +```js +{ header: { alg: 'HS256' }, + payload: 'h. jon benjamin', + signature: 'YOWPewyGHKu4Y_0M_vtlEnNlqmFOclqp4Hy6hVHfFT4' +} +``` + +## jws.createSign(options) + +Returns a new SignStream object. + +Options: + +* `header` (required) +* `payload` +* `key` || `privateKey` || `secret` +* `encoding` (Optional, defaults to 'utf8') + +Other than `header`, all options expect a string or a buffer when the +value is known ahead of time, or a stream for convenience. +`key`/`privateKey`/`secret` may also be an object when using an encrypted +private key, see the [crypto documentation][encrypted-key-docs]. + +Example: + +```js + +// This... +jws.createSign({ + header: { alg: 'RS256' }, + privateKey: privateKeyStream, + payload: payloadStream, +}).on('done', function(signature) { + // ... +}); + +// is equivalent to this: +const signer = jws.createSign({ + header: { alg: 'RS256' }, +}); +privateKeyStream.pipe(signer.privateKey); +payloadStream.pipe(signer.payload); +signer.on('done', function(signature) { + // ... +}); +``` + +## jws.createVerify(options) + +Returns a new VerifyStream object. + +Options: + +* `signature` +* `algorithm` +* `key` || `publicKey` || `secret` +* `encoding` (Optional, defaults to 'utf8') + +All options expect a string or a buffer when the value is known ahead of +time, or a stream for convenience. + +Example: + +```js + +// This... +jws.createVerify({ + publicKey: pubKeyStream, + signature: sigStream, +}).on('done', function(verified, obj) { + // ... +}); + +// is equivilant to this: +const verifier = jws.createVerify(); +pubKeyStream.pipe(verifier.publicKey); +sigStream.pipe(verifier.signature); +verifier.on('done', function(verified, obj) { + // ... +}); +``` + +## Class: SignStream + +A `Readable Stream` that emits a single data event (the calculated +signature) when done. + +### Event: 'done' +`function (signature) { }` + +### signer.payload + +A `Writable Stream` that expects the JWS payload. Do *not* use if you +passed a `payload` option to the constructor. + +Example: + +```js +payloadStream.pipe(signer.payload); +``` + +### signer.secret
signer.key
signer.privateKey + +A `Writable Stream`. Expects the JWS secret for HMAC, or the privateKey +for ECDSA and RSA. Do *not* use if you passed a `secret` or `key` option +to the constructor. + +Example: + +```js +privateKeyStream.pipe(signer.privateKey); +``` + +## Class: VerifyStream + +This is a `Readable Stream` that emits a single data event, the result +of whether or not that signature was valid. + +### Event: 'done' +`function (valid, obj) { }` + +`valid` is a boolean for whether or not the signature is valid. + +### verifier.signature + +A `Writable Stream` that expects a JWS Signature. Do *not* use if you +passed a `signature` option to the constructor. + +### verifier.secret
verifier.key
verifier.publicKey + +A `Writable Stream` that expects a public key or secret. Do *not* use if you +passed a `key` or `secret` option to the constructor. + +# TODO + +* It feels like there should be some convenience options/APIs for + defining the algorithm rather than having to define a header object + with `{ alg: 'ES512' }` or whatever every time. + +* X.509 support, ugh + +# License + +MIT + +``` +Copyright (c) 2013-2015 Brian J. Brennan + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +``` + +[encrypted-key-docs]: https://nodejs.org/api/crypto.html#crypto_sign_sign_private_key_output_format diff --git a/week-3/04-course-app-hard/node_modules/kareem/CHANGELOG.md b/week-3/04-course-app-hard/node_modules/kareem/CHANGELOG.md new file mode 100644 index 000000000..8c0cd4b05 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/CHANGELOG.md @@ -0,0 +1,823 @@ +# Changelog + + +## 2.6.0 (2024-03-04) + +* feat: add TypeScript types + + +## 2.5.1 (2023-01-06) + +* fix: avoid passing final callback to pre hook, because calling the callback can mess up hook execution #36 Automattic/mongoose#12836 + + +## 2.5.0 (2022-12-01) + +* feat: add errorHandler option to `post()` #34 + + +## 2.4.0 (2022-06-13) + +* feat: add `overwriteResult()` and `skipWrappedFunction()` for more advanced control flow + + +## 2.3.4 (2022-02-10) + +* perf: various performance improvements #27 #24 #23 #22 #21 #20 + + +## 2.3.3 (2021-12-26) + +* fix: handle sync errors in `wrap()` + + +## 2.3.2 (2020-12-08) + +* fix: handle sync errors in pre hooks if there are multiple hooks + + +## 2.3.0 (2018-09-24) + +* chore(release): 2.2.3 ([c8f2695](https://github.com/vkarpov15/kareem/commit/c8f2695)) +* chore(release): 2.2.4 ([a377a4f](https://github.com/vkarpov15/kareem/commit/a377a4f)) +* chore(release): 2.2.5 ([5a495e3](https://github.com/vkarpov15/kareem/commit/5a495e3)) +* fix(filter): copy async pres correctly with `filter()` ([1b1ed8a](https://github.com/vkarpov15/kareem/commit/1b1ed8a)), closes [Automattic/mongoose#3054](https://github.com/Automattic/mongoose/issues/3054) +* feat: add filter() function ([1f641f4](https://github.com/vkarpov15/kareem/commit/1f641f4)) +* feat: support storing options on pre and post hooks ([59220b9](https://github.com/vkarpov15/kareem/commit/59220b9)) + + + + +## 2.2.3 (2018-09-10) + +* chore: release 2.2.3 ([af653a3](https://github.com/vkarpov15/kareem/commit/af653a3)) + + + + +## 2.2.2 (2018-09-10) + +* chore: release 2.2.2 ([3f0144d](https://github.com/vkarpov15/kareem/commit/3f0144d)) +* fix: allow merge() to not clone ([e628d65](https://github.com/vkarpov15/kareem/commit/e628d65)) + + + + +## 2.2.1 (2018-06-05) + +* chore: release 2.2.1 ([4625a64](https://github.com/vkarpov15/kareem/commit/4625a64)) +* chore: remove lockfile from git ([7f3e4e6](https://github.com/vkarpov15/kareem/commit/7f3e4e6)) +* fix: handle numAsync correctly when merging ([fef8e7e](https://github.com/vkarpov15/kareem/commit/fef8e7e)) +* test: repro issue with not copying numAsync ([952d9db](https://github.com/vkarpov15/kareem/commit/952d9db)) + + + + +## 2.2.0 (2018-06-05) + +* chore: release 2.2.0 ([ff9ad03](https://github.com/vkarpov15/kareem/commit/ff9ad03)) +* fix: use maps instead of objects for _pres and _posts so `toString()` doesn't get reported as having ([55df303](https://github.com/vkarpov15/kareem/commit/55df303)), closes [Automattic/mongoose#6538](https://github.com/Automattic/mongoose/issues/6538) + + + + +## 2.1.0 (2018-05-16) + +* chore: release 2.1.0 ([ba5f1bc](https://github.com/vkarpov15/kareem/commit/ba5f1bc)) +* feat: add option to check wrapped function return value for promises ([c9d7dd1](https://github.com/vkarpov15/kareem/commit/c9d7dd1)) +* refactor: use const in wrap() ([0fc21f9](https://github.com/vkarpov15/kareem/commit/0fc21f9)) + + + + +## 2.0.7 (2018-04-28) + +* chore: release 2.0.7 ([0bf91e6](https://github.com/vkarpov15/kareem/commit/0bf91e6)) +* feat: add `hasHooks()` ([225f18d](https://github.com/vkarpov15/kareem/commit/225f18d)), closes [Automattic/mongoose#6385](https://github.com/Automattic/mongoose/issues/6385) + + + + +## 2.0.6 (2018-03-22) + +* chore: release 2.0.6 ([f3d406b](https://github.com/vkarpov15/kareem/commit/f3d406b)) +* fix(wrap): ensure fast path still wraps function in `nextTick()` for chaining ([7000494](https://github.com/vkarpov15/kareem/commit/7000494)), closes [Automattic/mongoose#6250](https://github.com/Automattic/mongoose/issues/6250) [dsanel/mongoose-delete#36](https://github.com/dsanel/mongoose-delete/issues/36) + + + + +## 2.0.5 (2018-02-22) + +* chore: release 2.0.5 ([3286612](https://github.com/vkarpov15/kareem/commit/3286612)) +* perf(createWrapper): don't create wrapper if there are no hooks ([5afc5b9](https://github.com/vkarpov15/kareem/commit/5afc5b9)), closes [Automattic/mongoose#6126](https://github.com/Automattic/mongoose/issues/6126) + + + + +## 2.0.4 (2018-02-08) + +* chore: release 2.0.4 ([2ab0293](https://github.com/vkarpov15/kareem/commit/2ab0293)) + + + + +## 2.0.3 (2018-02-01) + +* chore: release 2.0.3 ([3c1abe5](https://github.com/vkarpov15/kareem/commit/3c1abe5)) +* fix: use process.nextTick() re: Automattic/mongoose#6074 ([e5bfe33](https://github.com/vkarpov15/kareem/commit/e5bfe33)), closes [Automattic/mongoose#6074](https://github.com/Automattic/mongoose/issues/6074) + + + + +## 2.0.2 (2018-01-24) + +* chore: fix license ([a9d755c](https://github.com/vkarpov15/kareem/commit/a9d755c)), closes [#10](https://github.com/vkarpov15/kareem/issues/10) +* chore: release 2.0.2 ([fe87ab6](https://github.com/vkarpov15/kareem/commit/fe87ab6)) + + + + +## 2.0.1 (2018-01-09) + +* chore: release 2.0.1 with lockfile bump ([09c44fb](https://github.com/vkarpov15/kareem/commit/09c44fb)) + + + + +## 2.0.0 (2018-01-09) + +* chore: bump marked re: security ([cc564a9](https://github.com/vkarpov15/kareem/commit/cc564a9)) +* chore: release 2.0.0 ([f511d1c](https://github.com/vkarpov15/kareem/commit/f511d1c)) + + + + +## 2.0.0-rc5 (2017-12-23) + +* chore: fix build on node 4+5 ([6dac5a4](https://github.com/vkarpov15/kareem/commit/6dac5a4)) +* chore: fix built on node 4 + 5 again ([434ef0a](https://github.com/vkarpov15/kareem/commit/434ef0a)) +* chore: release 2.0.0-rc5 ([25a32ee](https://github.com/vkarpov15/kareem/commit/25a32ee)) + + + + +## 2.0.0-rc4 (2017-12-22) + +* chore: release 2.0.0-rc4 ([49fc083](https://github.com/vkarpov15/kareem/commit/49fc083)) +* BREAKING CHANGE: deduplicate when merging hooks re: Automattic/mongoose#2945 ([d458573](https://github.com/vkarpov15/kareem/commit/d458573)), closes [Automattic/mongoose#2945](https://github.com/Automattic/mongoose/issues/2945) + + + + +## 2.0.0-rc3 (2017-12-22) + +* chore: release 2.0.0-rc3 ([adaaa00](https://github.com/vkarpov15/kareem/commit/adaaa00)) +* feat: support returning promises from middleware functions ([05b4480](https://github.com/vkarpov15/kareem/commit/05b4480)), closes [Automattic/mongoose#3779](https://github.com/Automattic/mongoose/issues/3779) + + + + +## 2.0.0-rc2 (2017-12-21) + +* chore: release 2.0.0-rc2 ([76325fa](https://github.com/vkarpov15/kareem/commit/76325fa)) +* fix: ensure next() and done() run in next tick ([6c20684](https://github.com/vkarpov15/kareem/commit/6c20684)) + + + + +## 2.0.0-rc1 (2017-12-21) + +* chore: improve test coverage re: Automattic/mongoose#3232 ([7b45cf0](https://github.com/vkarpov15/kareem/commit/7b45cf0)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232) +* chore: release 2.0.0-rc1 ([9b83f52](https://github.com/vkarpov15/kareem/commit/9b83f52)) +* BREAKING CHANGE: report sync exceptions as errors, only allow calling next() and done() once ([674adcc](https://github.com/vkarpov15/kareem/commit/674adcc)), closes [Automattic/mongoose#3483](https://github.com/Automattic/mongoose/issues/3483) + + + + +## 2.0.0-rc0 (2017-12-17) + +* chore: release 2.0.0-rc0 ([16b44b5](https://github.com/vkarpov15/kareem/commit/16b44b5)) +* BREAKING CHANGE: drop support for node < 4 ([9cbb8c7](https://github.com/vkarpov15/kareem/commit/9cbb8c7)) +* BREAKING CHANGE: remove useLegacyPost and add several new features ([6dd8531](https://github.com/vkarpov15/kareem/commit/6dd8531)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232) + + + + +## 1.5.0 (2017-07-20) + +* chore: release 1.5.0 ([9c491a0](https://github.com/vkarpov15/kareem/commit/9c491a0)) +* fix: improve post error handlers results ([9928dd5](https://github.com/vkarpov15/kareem/commit/9928dd5)), closes [Automattic/mongoose#5466](https://github.com/Automattic/mongoose/issues/5466) + + + + +## 1.4.2 (2017-07-06) + +* chore: release 1.4.2 ([8d14ac5](https://github.com/vkarpov15/kareem/commit/8d14ac5)) +* fix: correct args re: Automattic/mongoose#5405 ([3f28ae6](https://github.com/vkarpov15/kareem/commit/3f28ae6)), closes [Automattic/mongoose#5405](https://github.com/Automattic/mongoose/issues/5405) + + + + +## 1.4.1 (2017-04-25) + +* chore: release 1.4.1 ([5ecf0c2](https://github.com/vkarpov15/kareem/commit/5ecf0c2)) +* fix: handle numAsyncPres with clone() ([c72e857](https://github.com/vkarpov15/kareem/commit/c72e857)), closes [#8](https://github.com/vkarpov15/kareem/issues/8) +* test: repro #8 ([9b4d6b2](https://github.com/vkarpov15/kareem/commit/9b4d6b2)), closes [#8](https://github.com/vkarpov15/kareem/issues/8) + + + + +## 1.4.0 (2017-04-19) + +* chore: release 1.4.0 ([101c5f5](https://github.com/vkarpov15/kareem/commit/101c5f5)) +* feat: add merge() function ([285325e](https://github.com/vkarpov15/kareem/commit/285325e)) + + + + +## 1.3.0 (2017-03-26) + +* chore: release 1.3.0 ([f3a9e50](https://github.com/vkarpov15/kareem/commit/f3a9e50)) +* feat: pass function args to execPre ([4dd466d](https://github.com/vkarpov15/kareem/commit/4dd466d)) + + + + +## 1.2.1 (2017-02-03) + +* chore: release 1.2.1 ([d97081f](https://github.com/vkarpov15/kareem/commit/d97081f)) +* fix: filter out _kareemIgnored args for error handlers re: Automattic/mongoose#4925 ([ddc7aeb](https://github.com/vkarpov15/kareem/commit/ddc7aeb)), closes [Automattic/mongoose#4925](https://github.com/Automattic/mongoose/issues/4925) +* fix: make error handlers handle errors in pre hooks ([af38033](https://github.com/vkarpov15/kareem/commit/af38033)), closes [Automattic/mongoose#4927](https://github.com/Automattic/mongoose/issues/4927) + + + + +## 1.2.0 (2017-01-02) + +* chore: release 1.2.0 ([033225c](https://github.com/vkarpov15/kareem/commit/033225c)) +* chore: upgrade deps ([f9e9a09](https://github.com/vkarpov15/kareem/commit/f9e9a09)) +* feat: add _kareemIgnore re: Automattic/mongoose#4836 ([7957771](https://github.com/vkarpov15/kareem/commit/7957771)), closes [Automattic/mongoose#4836](https://github.com/Automattic/mongoose/issues/4836) + + + + +## 1.1.5 (2016-12-13) + +* chore: release 1.1.5 ([1a9f684](https://github.com/vkarpov15/kareem/commit/1a9f684)) +* fix: correct field name ([04a0e9d](https://github.com/vkarpov15/kareem/commit/04a0e9d)) + + + + +## 1.1.4 (2016-12-09) + +* chore: release 1.1.4 ([ece401c](https://github.com/vkarpov15/kareem/commit/ece401c)) +* chore: run tests on node 6 ([e0cb1cb](https://github.com/vkarpov15/kareem/commit/e0cb1cb)) +* fix: only copy own properties in clone() ([dfe28ce](https://github.com/vkarpov15/kareem/commit/dfe28ce)), closes [#7](https://github.com/vkarpov15/kareem/issues/7) + + + + +## 1.1.3 (2016-06-27) + +* chore: release 1.1.3 ([87171c8](https://github.com/vkarpov15/kareem/commit/87171c8)) +* fix: couple more issues with arg processing ([c65f523](https://github.com/vkarpov15/kareem/commit/c65f523)) + + + + +## 1.1.2 (2016-06-27) + +* chore: release 1.1.2 ([8e102b6](https://github.com/vkarpov15/kareem/commit/8e102b6)) +* fix: add early return ([4feda4e](https://github.com/vkarpov15/kareem/commit/4feda4e)) + + + + +## 1.1.1 (2016-06-27) + +* chore: release 1.1.1 ([8bb3050](https://github.com/vkarpov15/kareem/commit/8bb3050)) +* fix: skip error handlers if no error ([0eb3a44](https://github.com/vkarpov15/kareem/commit/0eb3a44)) + + + + +## 1.1.0 (2016-05-11) + +* chore: release 1.1.0 ([85332d9](https://github.com/vkarpov15/kareem/commit/85332d9)) +* chore: test on node 4 and node 5 ([1faefa1](https://github.com/vkarpov15/kareem/commit/1faefa1)) +* 100% coverage again ([c9aee4e](https://github.com/vkarpov15/kareem/commit/c9aee4e)) +* add support for error post hooks ([d378113](https://github.com/vkarpov15/kareem/commit/d378113)) +* basic setup for sync hooks #4 ([55aa081](https://github.com/vkarpov15/kareem/commit/55aa081)), closes [#4](https://github.com/vkarpov15/kareem/issues/4) +* proof of concept for error handlers ([e4a07d9](https://github.com/vkarpov15/kareem/commit/e4a07d9)) +* refactor out handleWrapError helper ([b19af38](https://github.com/vkarpov15/kareem/commit/b19af38)) + + + + +## 1.0.1 (2015-05-10) + +* Fix #1 ([de60dc6](https://github.com/vkarpov15/kareem/commit/de60dc6)), closes [#1](https://github.com/vkarpov15/kareem/issues/1) +* release 1.0.1 ([6971088](https://github.com/vkarpov15/kareem/commit/6971088)) +* Run tests on iojs in travis ([adcd201](https://github.com/vkarpov15/kareem/commit/adcd201)) +* support legacy post hook behavior in wrap() ([23fa74c](https://github.com/vkarpov15/kareem/commit/23fa74c)) +* Use node 0.12 in travis ([834689d](https://github.com/vkarpov15/kareem/commit/834689d)) + + + + +## 1.0.0 (2015-01-28) + +* Tag 1.0.0 ([4c5a35a](https://github.com/vkarpov15/kareem/commit/4c5a35a)) + + + + +## 0.0.8 (2015-01-27) + +* Add clone function ([688bba7](https://github.com/vkarpov15/kareem/commit/688bba7)) +* Add jscs for style checking ([5c93149](https://github.com/vkarpov15/kareem/commit/5c93149)) +* Bump 0.0.8 ([03c0d2f](https://github.com/vkarpov15/kareem/commit/03c0d2f)) +* Fix jscs config, add gulp rules ([9989abf](https://github.com/vkarpov15/kareem/commit/9989abf)) +* fix Makefile typo ([1f7e61a](https://github.com/vkarpov15/kareem/commit/1f7e61a)) + + + + +## 0.0.7 (2015-01-04) + +* Bump 0.0.7 ([98ef173](https://github.com/vkarpov15/kareem/commit/98ef173)) +* fix LearnBoost/mongoose#2553 - use null instead of undefined for err ([9157b48](https://github.com/vkarpov15/kareem/commit/9157b48)), closes [LearnBoost/mongoose#2553](https://github.com/LearnBoost/mongoose/issues/2553) +* Regenerate docs ([2331cdf](https://github.com/vkarpov15/kareem/commit/2331cdf)) + + + + +## 0.0.6 (2015-01-01) + +* Update docs and bump 0.0.6 ([92c12a7](https://github.com/vkarpov15/kareem/commit/92c12a7)) + + + + +## 0.0.5 (2015-01-01) + +* Add coverage rule to Makefile ([825a91c](https://github.com/vkarpov15/kareem/commit/825a91c)) +* Add coveralls to README ([fb52369](https://github.com/vkarpov15/kareem/commit/fb52369)) +* Add coveralls to travis ([93f6f15](https://github.com/vkarpov15/kareem/commit/93f6f15)) +* Add createWrapper() function ([ea77741](https://github.com/vkarpov15/kareem/commit/ea77741)) +* Add istanbul code coverage ([6eceeef](https://github.com/vkarpov15/kareem/commit/6eceeef)) +* Add some more comments for examples ([c5b0c6f](https://github.com/vkarpov15/kareem/commit/c5b0c6f)) +* Add travis ([e6dcb06](https://github.com/vkarpov15/kareem/commit/e6dcb06)) +* Add travis badge to docs ([ad8c9b3](https://github.com/vkarpov15/kareem/commit/ad8c9b3)) +* Add wrap() tests, 100% coverage ([6945be4](https://github.com/vkarpov15/kareem/commit/6945be4)) +* Better test coverage for execPost ([d9ad539](https://github.com/vkarpov15/kareem/commit/d9ad539)) +* Bump 0.0.5 ([69875b1](https://github.com/vkarpov15/kareem/commit/69875b1)) +* Docs fix ([15b7098](https://github.com/vkarpov15/kareem/commit/15b7098)) +* Fix silly mistake in docs generation ([50373eb](https://github.com/vkarpov15/kareem/commit/50373eb)) +* Fix typo in readme ([fec4925](https://github.com/vkarpov15/kareem/commit/fec4925)) +* Linkify travis badge ([92b25fe](https://github.com/vkarpov15/kareem/commit/92b25fe)) +* Make travis run coverage ([747157b](https://github.com/vkarpov15/kareem/commit/747157b)) +* Move travis status badge ([d52e89b](https://github.com/vkarpov15/kareem/commit/d52e89b)) +* Quick fix for coverage ([50bbddb](https://github.com/vkarpov15/kareem/commit/50bbddb)) +* Typo fix ([adea794](https://github.com/vkarpov15/kareem/commit/adea794)) + + + + +## 0.0.4 (2014-12-13) + +* Bump 0.0.4, run docs generation ([51a15fe](https://github.com/vkarpov15/kareem/commit/51a15fe)) +* Use correct post parameters in wrap() ([9bb5da3](https://github.com/vkarpov15/kareem/commit/9bb5da3)) + + + + +## 0.0.3 (2014-12-12) + +* Add npm test script, fix small bug with args not getting passed through post ([49e3e68](https://github.com/vkarpov15/kareem/commit/49e3e68)) +* Bump 0.0.3 ([65621d8](https://github.com/vkarpov15/kareem/commit/65621d8)) +* Update readme ([901388b](https://github.com/vkarpov15/kareem/commit/901388b)) + + + + +## 0.0.2 (2014-12-12) + +* Add github repo and bump 0.0.2 ([59db8be](https://github.com/vkarpov15/kareem/commit/59db8be)) + + + + +## 0.0.1 (2014-12-12) + +* Add basic docs ([ad29ea4](https://github.com/vkarpov15/kareem/commit/ad29ea4)) +* Add pre hooks ([2ffc356](https://github.com/vkarpov15/kareem/commit/2ffc356)) +* Add wrap function ([68c540c](https://github.com/vkarpov15/kareem/commit/68c540c)) +* Bump to version 0.0.1 ([a4bfd68](https://github.com/vkarpov15/kareem/commit/a4bfd68)) +* Initial commit ([4002458](https://github.com/vkarpov15/kareem/commit/4002458)) +* Initial deposit ([98fc489](https://github.com/vkarpov15/kareem/commit/98fc489)) +* Post hooks ([395b67c](https://github.com/vkarpov15/kareem/commit/395b67c)) +* Some basic setup work ([82df75e](https://github.com/vkarpov15/kareem/commit/82df75e)) +* Support sync pre hooks ([1cc1b9f](https://github.com/vkarpov15/kareem/commit/1cc1b9f)) +* Update package.json description ([978da18](https://github.com/vkarpov15/kareem/commit/978da18)) + + + + +## 2.2.5 (2018-09-24) + + + + + +## 2.2.4 (2018-09-24) + + + + + +## 2.2.3 (2018-09-24) + +* fix(filter): copy async pres correctly with `filter()` ([1b1ed8a](https://github.com/vkarpov15/kareem/commit/1b1ed8a)), closes [Automattic/mongoose#3054](https://github.com/Automattic/mongoose/issues/3054) +* feat: add filter() function ([1f641f4](https://github.com/vkarpov15/kareem/commit/1f641f4)) +* feat: support storing options on pre and post hooks ([59220b9](https://github.com/vkarpov15/kareem/commit/59220b9)) + + + + +## 2.2.3 (2018-09-10) + +* chore: release 2.2.3 ([af653a3](https://github.com/vkarpov15/kareem/commit/af653a3)) + + + + +## 2.2.2 (2018-09-10) + +* chore: release 2.2.2 ([3f0144d](https://github.com/vkarpov15/kareem/commit/3f0144d)) +* fix: allow merge() to not clone ([e628d65](https://github.com/vkarpov15/kareem/commit/e628d65)) + + + + +## 2.2.1 (2018-06-05) + +* chore: release 2.2.1 ([4625a64](https://github.com/vkarpov15/kareem/commit/4625a64)) +* chore: remove lockfile from git ([7f3e4e6](https://github.com/vkarpov15/kareem/commit/7f3e4e6)) +* fix: handle numAsync correctly when merging ([fef8e7e](https://github.com/vkarpov15/kareem/commit/fef8e7e)) +* test: repro issue with not copying numAsync ([952d9db](https://github.com/vkarpov15/kareem/commit/952d9db)) + + + + +## 2.2.0 (2018-06-05) + +* chore: release 2.2.0 ([ff9ad03](https://github.com/vkarpov15/kareem/commit/ff9ad03)) +* fix: use maps instead of objects for _pres and _posts so `toString()` doesn't get reported as having ([55df303](https://github.com/vkarpov15/kareem/commit/55df303)), closes [Automattic/mongoose#6538](https://github.com/Automattic/mongoose/issues/6538) + + + + +## 2.1.0 (2018-05-16) + +* chore: release 2.1.0 ([ba5f1bc](https://github.com/vkarpov15/kareem/commit/ba5f1bc)) +* feat: add option to check wrapped function return value for promises ([c9d7dd1](https://github.com/vkarpov15/kareem/commit/c9d7dd1)) +* refactor: use const in wrap() ([0fc21f9](https://github.com/vkarpov15/kareem/commit/0fc21f9)) + + + + +## 2.0.7 (2018-04-28) + +* chore: release 2.0.7 ([0bf91e6](https://github.com/vkarpov15/kareem/commit/0bf91e6)) +* feat: add `hasHooks()` ([225f18d](https://github.com/vkarpov15/kareem/commit/225f18d)), closes [Automattic/mongoose#6385](https://github.com/Automattic/mongoose/issues/6385) + + + + +## 2.0.6 (2018-03-22) + +* chore: release 2.0.6 ([f3d406b](https://github.com/vkarpov15/kareem/commit/f3d406b)) +* fix(wrap): ensure fast path still wraps function in `nextTick()` for chaining ([7000494](https://github.com/vkarpov15/kareem/commit/7000494)), closes [Automattic/mongoose#6250](https://github.com/Automattic/mongoose/issues/6250) [dsanel/mongoose-delete#36](https://github.com/dsanel/mongoose-delete/issues/36) + + + + +## 2.0.5 (2018-02-22) + +* chore: release 2.0.5 ([3286612](https://github.com/vkarpov15/kareem/commit/3286612)) +* perf(createWrapper): don't create wrapper if there are no hooks ([5afc5b9](https://github.com/vkarpov15/kareem/commit/5afc5b9)), closes [Automattic/mongoose#6126](https://github.com/Automattic/mongoose/issues/6126) + + + + +## 2.0.4 (2018-02-08) + +* chore: release 2.0.4 ([2ab0293](https://github.com/vkarpov15/kareem/commit/2ab0293)) + + + + +## 2.0.3 (2018-02-01) + +* chore: release 2.0.3 ([3c1abe5](https://github.com/vkarpov15/kareem/commit/3c1abe5)) +* fix: use process.nextTick() re: Automattic/mongoose#6074 ([e5bfe33](https://github.com/vkarpov15/kareem/commit/e5bfe33)), closes [Automattic/mongoose#6074](https://github.com/Automattic/mongoose/issues/6074) + + + + +## 2.0.2 (2018-01-24) + +* chore: fix license ([a9d755c](https://github.com/vkarpov15/kareem/commit/a9d755c)), closes [#10](https://github.com/vkarpov15/kareem/issues/10) +* chore: release 2.0.2 ([fe87ab6](https://github.com/vkarpov15/kareem/commit/fe87ab6)) + + + + +## 2.0.1 (2018-01-09) + +* chore: release 2.0.1 with lockfile bump ([09c44fb](https://github.com/vkarpov15/kareem/commit/09c44fb)) + + + + +## 2.0.0 (2018-01-09) + +* chore: bump marked re: security ([cc564a9](https://github.com/vkarpov15/kareem/commit/cc564a9)) +* chore: release 2.0.0 ([f511d1c](https://github.com/vkarpov15/kareem/commit/f511d1c)) + + + + +## 2.0.0-rc5 (2017-12-23) + +* chore: fix build on node 4+5 ([6dac5a4](https://github.com/vkarpov15/kareem/commit/6dac5a4)) +* chore: fix built on node 4 + 5 again ([434ef0a](https://github.com/vkarpov15/kareem/commit/434ef0a)) +* chore: release 2.0.0-rc5 ([25a32ee](https://github.com/vkarpov15/kareem/commit/25a32ee)) + + + + +## 2.0.0-rc4 (2017-12-22) + +* chore: release 2.0.0-rc4 ([49fc083](https://github.com/vkarpov15/kareem/commit/49fc083)) +* BREAKING CHANGE: deduplicate when merging hooks re: Automattic/mongoose#2945 ([d458573](https://github.com/vkarpov15/kareem/commit/d458573)), closes [Automattic/mongoose#2945](https://github.com/Automattic/mongoose/issues/2945) + + + + +## 2.0.0-rc3 (2017-12-22) + +* chore: release 2.0.0-rc3 ([adaaa00](https://github.com/vkarpov15/kareem/commit/adaaa00)) +* feat: support returning promises from middleware functions ([05b4480](https://github.com/vkarpov15/kareem/commit/05b4480)), closes [Automattic/mongoose#3779](https://github.com/Automattic/mongoose/issues/3779) + + + + +## 2.0.0-rc2 (2017-12-21) + +* chore: release 2.0.0-rc2 ([76325fa](https://github.com/vkarpov15/kareem/commit/76325fa)) +* fix: ensure next() and done() run in next tick ([6c20684](https://github.com/vkarpov15/kareem/commit/6c20684)) + + + + +## 2.0.0-rc1 (2017-12-21) + +* chore: improve test coverage re: Automattic/mongoose#3232 ([7b45cf0](https://github.com/vkarpov15/kareem/commit/7b45cf0)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232) +* chore: release 2.0.0-rc1 ([9b83f52](https://github.com/vkarpov15/kareem/commit/9b83f52)) +* BREAKING CHANGE: report sync exceptions as errors, only allow calling next() and done() once ([674adcc](https://github.com/vkarpov15/kareem/commit/674adcc)), closes [Automattic/mongoose#3483](https://github.com/Automattic/mongoose/issues/3483) + + + + +## 2.0.0-rc0 (2017-12-17) + +* chore: release 2.0.0-rc0 ([16b44b5](https://github.com/vkarpov15/kareem/commit/16b44b5)) +* BREAKING CHANGE: drop support for node < 4 ([9cbb8c7](https://github.com/vkarpov15/kareem/commit/9cbb8c7)) +* BREAKING CHANGE: remove useLegacyPost and add several new features ([6dd8531](https://github.com/vkarpov15/kareem/commit/6dd8531)), closes [Automattic/mongoose#3232](https://github.com/Automattic/mongoose/issues/3232) + + + + +## 1.5.0 (2017-07-20) + +* chore: release 1.5.0 ([9c491a0](https://github.com/vkarpov15/kareem/commit/9c491a0)) +* fix: improve post error handlers results ([9928dd5](https://github.com/vkarpov15/kareem/commit/9928dd5)), closes [Automattic/mongoose#5466](https://github.com/Automattic/mongoose/issues/5466) + + + + +## 1.4.2 (2017-07-06) + +* chore: release 1.4.2 ([8d14ac5](https://github.com/vkarpov15/kareem/commit/8d14ac5)) +* fix: correct args re: Automattic/mongoose#5405 ([3f28ae6](https://github.com/vkarpov15/kareem/commit/3f28ae6)), closes [Automattic/mongoose#5405](https://github.com/Automattic/mongoose/issues/5405) + + + + +## 1.4.1 (2017-04-25) + +* chore: release 1.4.1 ([5ecf0c2](https://github.com/vkarpov15/kareem/commit/5ecf0c2)) +* fix: handle numAsyncPres with clone() ([c72e857](https://github.com/vkarpov15/kareem/commit/c72e857)), closes [#8](https://github.com/vkarpov15/kareem/issues/8) +* test: repro #8 ([9b4d6b2](https://github.com/vkarpov15/kareem/commit/9b4d6b2)), closes [#8](https://github.com/vkarpov15/kareem/issues/8) + + + + +## 1.4.0 (2017-04-19) + +* chore: release 1.4.0 ([101c5f5](https://github.com/vkarpov15/kareem/commit/101c5f5)) +* feat: add merge() function ([285325e](https://github.com/vkarpov15/kareem/commit/285325e)) + + + + +## 1.3.0 (2017-03-26) + +* chore: release 1.3.0 ([f3a9e50](https://github.com/vkarpov15/kareem/commit/f3a9e50)) +* feat: pass function args to execPre ([4dd466d](https://github.com/vkarpov15/kareem/commit/4dd466d)) + + + + +## 1.2.1 (2017-02-03) + +* chore: release 1.2.1 ([d97081f](https://github.com/vkarpov15/kareem/commit/d97081f)) +* fix: filter out _kareemIgnored args for error handlers re: Automattic/mongoose#4925 ([ddc7aeb](https://github.com/vkarpov15/kareem/commit/ddc7aeb)), closes [Automattic/mongoose#4925](https://github.com/Automattic/mongoose/issues/4925) +* fix: make error handlers handle errors in pre hooks ([af38033](https://github.com/vkarpov15/kareem/commit/af38033)), closes [Automattic/mongoose#4927](https://github.com/Automattic/mongoose/issues/4927) + + + + +## 1.2.0 (2017-01-02) + +* chore: release 1.2.0 ([033225c](https://github.com/vkarpov15/kareem/commit/033225c)) +* chore: upgrade deps ([f9e9a09](https://github.com/vkarpov15/kareem/commit/f9e9a09)) +* feat: add _kareemIgnore re: Automattic/mongoose#4836 ([7957771](https://github.com/vkarpov15/kareem/commit/7957771)), closes [Automattic/mongoose#4836](https://github.com/Automattic/mongoose/issues/4836) + + + + +## 1.1.5 (2016-12-13) + +* chore: release 1.1.5 ([1a9f684](https://github.com/vkarpov15/kareem/commit/1a9f684)) +* fix: correct field name ([04a0e9d](https://github.com/vkarpov15/kareem/commit/04a0e9d)) + + + + +## 1.1.4 (2016-12-09) + +* chore: release 1.1.4 ([ece401c](https://github.com/vkarpov15/kareem/commit/ece401c)) +* chore: run tests on node 6 ([e0cb1cb](https://github.com/vkarpov15/kareem/commit/e0cb1cb)) +* fix: only copy own properties in clone() ([dfe28ce](https://github.com/vkarpov15/kareem/commit/dfe28ce)), closes [#7](https://github.com/vkarpov15/kareem/issues/7) + + + + +## 1.1.3 (2016-06-27) + +* chore: release 1.1.3 ([87171c8](https://github.com/vkarpov15/kareem/commit/87171c8)) +* fix: couple more issues with arg processing ([c65f523](https://github.com/vkarpov15/kareem/commit/c65f523)) + + + + +## 1.1.2 (2016-06-27) + +* chore: release 1.1.2 ([8e102b6](https://github.com/vkarpov15/kareem/commit/8e102b6)) +* fix: add early return ([4feda4e](https://github.com/vkarpov15/kareem/commit/4feda4e)) + + + + +## 1.1.1 (2016-06-27) + +* chore: release 1.1.1 ([8bb3050](https://github.com/vkarpov15/kareem/commit/8bb3050)) +* fix: skip error handlers if no error ([0eb3a44](https://github.com/vkarpov15/kareem/commit/0eb3a44)) + + + + +## 1.1.0 (2016-05-11) + +* chore: release 1.1.0 ([85332d9](https://github.com/vkarpov15/kareem/commit/85332d9)) +* chore: test on node 4 and node 5 ([1faefa1](https://github.com/vkarpov15/kareem/commit/1faefa1)) +* 100% coverage again ([c9aee4e](https://github.com/vkarpov15/kareem/commit/c9aee4e)) +* add support for error post hooks ([d378113](https://github.com/vkarpov15/kareem/commit/d378113)) +* basic setup for sync hooks #4 ([55aa081](https://github.com/vkarpov15/kareem/commit/55aa081)), closes [#4](https://github.com/vkarpov15/kareem/issues/4) +* proof of concept for error handlers ([e4a07d9](https://github.com/vkarpov15/kareem/commit/e4a07d9)) +* refactor out handleWrapError helper ([b19af38](https://github.com/vkarpov15/kareem/commit/b19af38)) + + + + +## 1.0.1 (2015-05-10) + +* Fix #1 ([de60dc6](https://github.com/vkarpov15/kareem/commit/de60dc6)), closes [#1](https://github.com/vkarpov15/kareem/issues/1) +* release 1.0.1 ([6971088](https://github.com/vkarpov15/kareem/commit/6971088)) +* Run tests on iojs in travis ([adcd201](https://github.com/vkarpov15/kareem/commit/adcd201)) +* support legacy post hook behavior in wrap() ([23fa74c](https://github.com/vkarpov15/kareem/commit/23fa74c)) +* Use node 0.12 in travis ([834689d](https://github.com/vkarpov15/kareem/commit/834689d)) + + + + +## 1.0.0 (2015-01-28) + +* Tag 1.0.0 ([4c5a35a](https://github.com/vkarpov15/kareem/commit/4c5a35a)) + + + + +## 0.0.8 (2015-01-27) + +* Add clone function ([688bba7](https://github.com/vkarpov15/kareem/commit/688bba7)) +* Add jscs for style checking ([5c93149](https://github.com/vkarpov15/kareem/commit/5c93149)) +* Bump 0.0.8 ([03c0d2f](https://github.com/vkarpov15/kareem/commit/03c0d2f)) +* Fix jscs config, add gulp rules ([9989abf](https://github.com/vkarpov15/kareem/commit/9989abf)) +* fix Makefile typo ([1f7e61a](https://github.com/vkarpov15/kareem/commit/1f7e61a)) + + + + +## 0.0.7 (2015-01-04) + +* Bump 0.0.7 ([98ef173](https://github.com/vkarpov15/kareem/commit/98ef173)) +* fix LearnBoost/mongoose#2553 - use null instead of undefined for err ([9157b48](https://github.com/vkarpov15/kareem/commit/9157b48)), closes [LearnBoost/mongoose#2553](https://github.com/LearnBoost/mongoose/issues/2553) +* Regenerate docs ([2331cdf](https://github.com/vkarpov15/kareem/commit/2331cdf)) + + + + +## 0.0.6 (2015-01-01) + +* Update docs and bump 0.0.6 ([92c12a7](https://github.com/vkarpov15/kareem/commit/92c12a7)) + + + + +## 0.0.5 (2015-01-01) + +* Add coverage rule to Makefile ([825a91c](https://github.com/vkarpov15/kareem/commit/825a91c)) +* Add coveralls to README ([fb52369](https://github.com/vkarpov15/kareem/commit/fb52369)) +* Add coveralls to travis ([93f6f15](https://github.com/vkarpov15/kareem/commit/93f6f15)) +* Add createWrapper() function ([ea77741](https://github.com/vkarpov15/kareem/commit/ea77741)) +* Add istanbul code coverage ([6eceeef](https://github.com/vkarpov15/kareem/commit/6eceeef)) +* Add some more comments for examples ([c5b0c6f](https://github.com/vkarpov15/kareem/commit/c5b0c6f)) +* Add travis ([e6dcb06](https://github.com/vkarpov15/kareem/commit/e6dcb06)) +* Add travis badge to docs ([ad8c9b3](https://github.com/vkarpov15/kareem/commit/ad8c9b3)) +* Add wrap() tests, 100% coverage ([6945be4](https://github.com/vkarpov15/kareem/commit/6945be4)) +* Better test coverage for execPost ([d9ad539](https://github.com/vkarpov15/kareem/commit/d9ad539)) +* Bump 0.0.5 ([69875b1](https://github.com/vkarpov15/kareem/commit/69875b1)) +* Docs fix ([15b7098](https://github.com/vkarpov15/kareem/commit/15b7098)) +* Fix silly mistake in docs generation ([50373eb](https://github.com/vkarpov15/kareem/commit/50373eb)) +* Fix typo in readme ([fec4925](https://github.com/vkarpov15/kareem/commit/fec4925)) +* Linkify travis badge ([92b25fe](https://github.com/vkarpov15/kareem/commit/92b25fe)) +* Make travis run coverage ([747157b](https://github.com/vkarpov15/kareem/commit/747157b)) +* Move travis status badge ([d52e89b](https://github.com/vkarpov15/kareem/commit/d52e89b)) +* Quick fix for coverage ([50bbddb](https://github.com/vkarpov15/kareem/commit/50bbddb)) +* Typo fix ([adea794](https://github.com/vkarpov15/kareem/commit/adea794)) + + + + +## 0.0.4 (2014-12-13) + +* Bump 0.0.4, run docs generation ([51a15fe](https://github.com/vkarpov15/kareem/commit/51a15fe)) +* Use correct post parameters in wrap() ([9bb5da3](https://github.com/vkarpov15/kareem/commit/9bb5da3)) + + + + +## 0.0.3 (2014-12-12) + +* Add npm test script, fix small bug with args not getting passed through post ([49e3e68](https://github.com/vkarpov15/kareem/commit/49e3e68)) +* Bump 0.0.3 ([65621d8](https://github.com/vkarpov15/kareem/commit/65621d8)) +* Update readme ([901388b](https://github.com/vkarpov15/kareem/commit/901388b)) + + + + +## 0.0.2 (2014-12-12) + +* Add github repo and bump 0.0.2 ([59db8be](https://github.com/vkarpov15/kareem/commit/59db8be)) + + + + +## 0.0.1 (2014-12-12) + +* Add basic docs ([ad29ea4](https://github.com/vkarpov15/kareem/commit/ad29ea4)) +* Add pre hooks ([2ffc356](https://github.com/vkarpov15/kareem/commit/2ffc356)) +* Add wrap function ([68c540c](https://github.com/vkarpov15/kareem/commit/68c540c)) +* Bump to version 0.0.1 ([a4bfd68](https://github.com/vkarpov15/kareem/commit/a4bfd68)) +* Initial commit ([4002458](https://github.com/vkarpov15/kareem/commit/4002458)) +* Initial deposit ([98fc489](https://github.com/vkarpov15/kareem/commit/98fc489)) +* Post hooks ([395b67c](https://github.com/vkarpov15/kareem/commit/395b67c)) +* Some basic setup work ([82df75e](https://github.com/vkarpov15/kareem/commit/82df75e)) +* Support sync pre hooks ([1cc1b9f](https://github.com/vkarpov15/kareem/commit/1cc1b9f)) +* Update package.json description ([978da18](https://github.com/vkarpov15/kareem/commit/978da18)) diff --git a/week-3/04-course-app-hard/node_modules/kareem/LICENSE b/week-3/04-course-app-hard/node_modules/kareem/LICENSE new file mode 100644 index 000000000..b0d46d3c2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/LICENSE @@ -0,0 +1,202 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2014-2022 mongoosejs + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/week-3/04-course-app-hard/node_modules/kareem/README.md b/week-3/04-course-app-hard/node_modules/kareem/README.md new file mode 100644 index 000000000..b1e0fdbce --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/README.md @@ -0,0 +1,419 @@ +# kareem + + [![Build Status](https://github.com/mongoosejs/kareem/actions/workflows/test.yml/badge.svg?branch=master)](https://github.com/mongoosejs/kareem/actions/workflows/test.yml) + + +Re-imagined take on the [hooks](http://npmjs.org/package/hooks) module, meant to offer additional flexibility in allowing you to execute hooks whenever necessary, as opposed to simply wrapping a single function. + +Named for the NBA's all-time leading scorer Kareem Abdul-Jabbar, known for his mastery of the [hook shot](http://en.wikipedia.org/wiki/Kareem_Abdul-Jabbar#Skyhook) + + + +# API + +## pre hooks + +Much like [hooks](https://npmjs.org/package/hooks), kareem lets you define +pre and post hooks: pre hooks are called before a given function executes. +Unlike hooks, kareem stores hooks and other internal state in a separate +object, rather than relying on inheritance. Furthermore, kareem exposes +an `execPre()` function that allows you to execute your pre hooks when +appropriate, giving you more fine-grained control over your function hooks. + + +#### It runs without any hooks specified + +```javascript +hooks.execPre('cook', null, function() { + // ... +}); +``` + +#### It runs basic serial pre hooks + +pre hook functions take one parameter, a "done" function that you execute +when your pre hook is finished. + + +```javascript +var count = 0; + +hooks.pre('cook', function(done) { + ++count; + done(); +}); + +hooks.execPre('cook', null, function() { + assert.equal(1, count); +}); +``` + +#### It can run multipe pre hooks + +```javascript +var count1 = 0; +var count2 = 0; + +hooks.pre('cook', function(done) { + ++count1; + done(); +}); + +hooks.pre('cook', function(done) { + ++count2; + done(); +}); + +hooks.execPre('cook', null, function() { + assert.equal(1, count1); + assert.equal(1, count2); +}); +``` + +#### It can run fully synchronous pre hooks + +If your pre hook function takes no parameters, its assumed to be +fully synchronous. + + +```javascript +var count1 = 0; +var count2 = 0; + +hooks.pre('cook', function() { + ++count1; +}); + +hooks.pre('cook', function() { + ++count2; +}); + +hooks.execPre('cook', null, function(error) { + assert.equal(null, error); + assert.equal(1, count1); + assert.equal(1, count2); +}); +``` + +#### It properly attaches context to pre hooks + +Pre save hook functions are bound to the second parameter to `execPre()` + + +```javascript +hooks.pre('cook', function(done) { + this.bacon = 3; + done(); +}); + +hooks.pre('cook', function(done) { + this.eggs = 4; + done(); +}); + +var obj = { bacon: 0, eggs: 0 }; + +// In the pre hooks, `this` will refer to `obj` +hooks.execPre('cook', obj, function(error) { + assert.equal(null, error); + assert.equal(3, obj.bacon); + assert.equal(4, obj.eggs); +}); +``` + +#### It can execute parallel (async) pre hooks + +Like the hooks module, you can declare "async" pre hooks - these take two +parameters, the functions `next()` and `done()`. `next()` passes control to +the next pre hook, but the underlying function won't be called until all +async pre hooks have called `done()`. + + +```javascript +hooks.pre('cook', true, function(next, done) { + this.bacon = 3; + next(); + setTimeout(function() { + done(); + }, 5); +}); + +hooks.pre('cook', true, function(next, done) { + next(); + var _this = this; + setTimeout(function() { + _this.eggs = 4; + done(); + }, 10); +}); + +hooks.pre('cook', function(next) { + this.waffles = false; + next(); +}); + +var obj = { bacon: 0, eggs: 0 }; + +hooks.execPre('cook', obj, function() { + assert.equal(3, obj.bacon); + assert.equal(4, obj.eggs); + assert.equal(false, obj.waffles); +}); +``` + +#### It supports returning a promise + +You can also return a promise from your pre hooks instead of calling +`next()`. When the returned promise resolves, kareem will kick off the +next middleware. + + +```javascript +hooks.pre('cook', function() { + return new Promise(resolve => { + setTimeout(() => { + this.bacon = 3; + resolve(); + }, 100); + }); +}); + +var obj = { bacon: 0 }; + +hooks.execPre('cook', obj, function() { + assert.equal(3, obj.bacon); +}); +``` + +## post hooks + +acquit:ignore:end + +#### It runs without any hooks specified + +```javascript +hooks.execPost('cook', null, [1], function(error, eggs) { + assert.ifError(error); + assert.equal(1, eggs); + done(); +}); +``` + +#### It executes with parameters passed in + +```javascript +hooks.post('cook', function(eggs, bacon, callback) { + assert.equal(1, eggs); + assert.equal(2, bacon); + callback(); +}); + +hooks.execPost('cook', null, [1, 2], function(error, eggs, bacon) { + assert.ifError(error); + assert.equal(1, eggs); + assert.equal(2, bacon); +}); +``` + +#### It can use synchronous post hooks + +```javascript +var execed = {}; + +hooks.post('cook', function(eggs, bacon) { + execed.first = true; + assert.equal(1, eggs); + assert.equal(2, bacon); +}); + +hooks.post('cook', function(eggs, bacon, callback) { + execed.second = true; + assert.equal(1, eggs); + assert.equal(2, bacon); + callback(); +}); + +hooks.execPost('cook', null, [1, 2], function(error, eggs, bacon) { + assert.ifError(error); + assert.equal(2, Object.keys(execed).length); + assert.ok(execed.first); + assert.ok(execed.second); + assert.equal(1, eggs); + assert.equal(2, bacon); +}); +``` + +#### It supports returning a promise + +You can also return a promise from your post hooks instead of calling +`next()`. When the returned promise resolves, kareem will kick off the +next middleware. + + +```javascript +hooks.post('cook', function(bacon) { + return new Promise(resolve => { + setTimeout(() => { + this.bacon = 3; + resolve(); + }, 100); + }); +}); + +var obj = { bacon: 0 }; + +hooks.execPost('cook', obj, obj, function() { + assert.equal(obj.bacon, 3); +}); +``` + +## wrap() + +acquit:ignore:end + +#### It wraps pre and post calls into one call + +```javascript +hooks.pre('cook', true, function(next, done) { + this.bacon = 3; + next(); + setTimeout(function() { + done(); + }, 5); +}); + +hooks.pre('cook', true, function(next, done) { + next(); + var _this = this; + setTimeout(function() { + _this.eggs = 4; + done(); + }, 10); +}); + +hooks.pre('cook', function(next) { + this.waffles = false; + next(); +}); + +hooks.post('cook', function(obj) { + obj.tofu = 'no'; +}); + +var obj = { bacon: 0, eggs: 0 }; + +var args = [obj]; +args.push(function(error, result) { + assert.ifError(error); + assert.equal(null, error); + assert.equal(3, obj.bacon); + assert.equal(4, obj.eggs); + assert.equal(false, obj.waffles); + assert.equal('no', obj.tofu); + + assert.equal(obj, result); +}); + +hooks.wrap( + 'cook', + function(o, callback) { + assert.equal(3, obj.bacon); + assert.equal(4, obj.eggs); + assert.equal(false, obj.waffles); + assert.equal(undefined, obj.tofu); + callback(null, o); + }, + obj, + args); +``` + +## createWrapper() + +#### It wraps wrap() into a callable function + +```javascript +hooks.pre('cook', true, function(next, done) { + this.bacon = 3; + next(); + setTimeout(function() { + done(); + }, 5); +}); + +hooks.pre('cook', true, function(next, done) { + next(); + var _this = this; + setTimeout(function() { + _this.eggs = 4; + done(); + }, 10); +}); + +hooks.pre('cook', function(next) { + this.waffles = false; + next(); +}); + +hooks.post('cook', function(obj) { + obj.tofu = 'no'; +}); + +var obj = { bacon: 0, eggs: 0 }; + +var cook = hooks.createWrapper( + 'cook', + function(o, callback) { + assert.equal(3, obj.bacon); + assert.equal(4, obj.eggs); + assert.equal(false, obj.waffles); + assert.equal(undefined, obj.tofu); + callback(null, o); + }, + obj); + +cook(obj, function(error, result) { + assert.ifError(error); + assert.equal(3, obj.bacon); + assert.equal(4, obj.eggs); + assert.equal(false, obj.waffles); + assert.equal('no', obj.tofu); + + assert.equal(obj, result); +}); +``` + +## clone() + +acquit:ignore:end + +#### It clones a Kareem object + +```javascript +var k1 = new Kareem(); +k1.pre('cook', function() {}); +k1.post('cook', function() {}); + +var k2 = k1.clone(); +assert.deepEqual(Array.from(k2._pres.keys()), ['cook']); +assert.deepEqual(Array.from(k2._posts.keys()), ['cook']); +``` + +## merge() + +#### It pulls hooks from another Kareem object + +```javascript +var k1 = new Kareem(); +var test1 = function() {}; +k1.pre('cook', test1); +k1.post('cook', function() {}); + +var k2 = new Kareem(); +var test2 = function() {}; +k2.pre('cook', test2); +var k3 = k2.merge(k1); +assert.equal(k3._pres.get('cook').length, 2); +assert.equal(k3._pres.get('cook')[0].fn, test2); +assert.equal(k3._pres.get('cook')[1].fn, test1); +assert.equal(k3._posts.get('cook').length, 1); +``` diff --git a/week-3/04-course-app-hard/node_modules/kareem/SECURITY.md b/week-3/04-course-app-hard/node_modules/kareem/SECURITY.md new file mode 100644 index 000000000..da9c516dd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/SECURITY.md @@ -0,0 +1,5 @@ +## Security contact information + +To report a security vulnerability, please use the +[Tidelift security contact](https://tidelift.com/security). +Tidelift will coordinate the fix and disclosure. diff --git a/week-3/04-course-app-hard/node_modules/kareem/index.d.ts b/week-3/04-course-app-hard/node_modules/kareem/index.d.ts new file mode 100644 index 000000000..cc9247d25 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/index.d.ts @@ -0,0 +1,29 @@ +declare module "kareem" { + export default class Kareem { + static skipWrappedFunction(): SkipWrappedFunction; + static overwriteMiddlewareResult(): OverwriteMiddlewareResult; + + pre(name: string | RegExp, fn: Function): this; + pre(name: string | RegExp, options: Record, fn: Function, error?: any, unshift?: boolean): this; + post(name: string | RegExp, fn: Function): this; + post(name: string | RegExp, options: Record, fn: Function, unshift?: boolean): this; + + clone(): Kareem; + merge(other: Kareem, clone?: boolean): this; + + createWrapper(name: string, fn: Function, context?: any, options?: Record): Function; + createWrapperSync(name: string, fn: Function): Function; + hasHooks(name: string): boolean; + filter(fn: Function): Kareem; + + wrap(name: string, fn: Function, context: any, args: any[], options?: Record): Function; + + execPostSync(name: string, context: any, args: any[]): any; + execPost(name: string, context: any, args: any[], options?: Record, callback?: Function): void; + execPreSync(name: string, context: any, args: any[]): any; + execPre(name: string, context: any, args: any[], callback?: Function): void; + } + + class SkipWrappedFunction {} + class OverwriteMiddlewareResult {} +} diff --git a/week-3/04-course-app-hard/node_modules/kareem/index.js b/week-3/04-course-app-hard/node_modules/kareem/index.js new file mode 100644 index 000000000..9c5aa16ed --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/index.js @@ -0,0 +1,668 @@ +'use strict'; + +/** + * Create a new instance + */ +function Kareem() { + this._pres = new Map(); + this._posts = new Map(); +} + +Kareem.skipWrappedFunction = function skipWrappedFunction() { + if (!(this instanceof Kareem.skipWrappedFunction)) { + return new Kareem.skipWrappedFunction(...arguments); + } + + this.args = [...arguments]; +}; + +Kareem.overwriteResult = function overwriteResult() { + if (!(this instanceof Kareem.overwriteResult)) { + return new Kareem.overwriteResult(...arguments); + } + + this.args = [...arguments]; +}; + +/** + * Execute all "pre" hooks for "name" + * @param {String} name The hook name to execute + * @param {*} context Overwrite the "this" for the hook + * @param {Array|Function} args Optional arguments or directly the callback + * @param {Function} [callback] The callback to call when executing all hooks are finished + * @returns {void} + */ +Kareem.prototype.execPre = function(name, context, args, callback) { + if (arguments.length === 3) { + callback = args; + args = []; + } + const pres = this._pres.get(name) || []; + const numPres = pres.length; + const numAsyncPres = pres.numAsync || 0; + let currentPre = 0; + let asyncPresLeft = numAsyncPres; + let done = false; + const $args = args; + let shouldSkipWrappedFunction = null; + + if (!numPres) { + return nextTick(function() { + callback(null); + }); + } + + function next() { + if (currentPre >= numPres) { + return; + } + const pre = pres[currentPre]; + + if (pre.isAsync) { + const args = [ + decorateNextFn(_next), + decorateNextFn(function(error) { + if (error) { + if (done) { + return; + } + if (error instanceof Kareem.skipWrappedFunction) { + shouldSkipWrappedFunction = error; + } else { + done = true; + return callback(error); + } + } + if (--asyncPresLeft === 0 && currentPre >= numPres) { + return callback(shouldSkipWrappedFunction); + } + }) + ]; + + callMiddlewareFunction(pre.fn, context, args, args[0]); + } else if (pre.fn.length > 0) { + const args = [decorateNextFn(_next)]; + const _args = arguments.length >= 2 ? arguments : [null].concat($args); + for (let i = 1; i < _args.length; ++i) { + if (i === _args.length - 1 && typeof _args[i] === 'function') { + continue; // skip callbacks to avoid accidentally calling the callback from a hook + } + args.push(_args[i]); + } + + callMiddlewareFunction(pre.fn, context, args, args[0]); + } else { + let maybePromiseLike = null; + try { + maybePromiseLike = pre.fn.call(context); + } catch (err) { + if (err != null) { + return callback(err); + } + } + + if (isPromiseLike(maybePromiseLike)) { + maybePromiseLike.then(() => _next(), err => _next(err)); + } else { + if (++currentPre >= numPres) { + if (asyncPresLeft > 0) { + // Leave parallel hooks to run + return; + } else { + return nextTick(function() { + callback(shouldSkipWrappedFunction); + }); + } + } + next(); + } + } + } + + next.apply(null, [null].concat(args)); + + function _next(error) { + if (error) { + if (done) { + return; + } + if (error instanceof Kareem.skipWrappedFunction) { + shouldSkipWrappedFunction = error; + } else { + done = true; + return callback(error); + } + } + + if (++currentPre >= numPres) { + if (asyncPresLeft > 0) { + // Leave parallel hooks to run + return; + } else { + return callback(shouldSkipWrappedFunction); + } + } + + next.apply(context, arguments); + } +}; + +/** + * Execute all "pre" hooks for "name" synchronously + * @param {String} name The hook name to execute + * @param {*} context Overwrite the "this" for the hook + * @param {Array} [args] Apply custom arguments to the hook + * @returns {void} + */ +Kareem.prototype.execPreSync = function(name, context, args) { + const pres = this._pres.get(name) || []; + const numPres = pres.length; + + for (let i = 0; i < numPres; ++i) { + pres[i].fn.apply(context, args || []); + } +}; + +/** + * Execute all "post" hooks for "name" + * @param {String} name The hook name to execute + * @param {*} context Overwrite the "this" for the hook + * @param {Array|Function} args Apply custom arguments to the hook + * @param {*} options Optional options or directly the callback + * @param {Function} [callback] The callback to call when executing all hooks are finished + * @returns {void} + */ +Kareem.prototype.execPost = function(name, context, args, options, callback) { + if (arguments.length < 5) { + callback = options; + options = null; + } + const posts = this._posts.get(name) || []; + const numPosts = posts.length; + let currentPost = 0; + + let firstError = null; + if (options && options.error) { + firstError = options.error; + } + + if (!numPosts) { + return nextTick(function() { + callback.apply(null, [firstError].concat(args)); + }); + } + + function next() { + const post = posts[currentPost].fn; + let numArgs = 0; + const argLength = args.length; + const newArgs = []; + for (let i = 0; i < argLength; ++i) { + numArgs += args[i] && args[i]._kareemIgnore ? 0 : 1; + if (!args[i] || !args[i]._kareemIgnore) { + newArgs.push(args[i]); + } + } + + if (firstError) { + if (isErrorHandlingMiddleware(posts[currentPost], numArgs)) { + const _cb = decorateNextFn(function(error) { + if (error) { + if (error instanceof Kareem.overwriteResult) { + args = error.args; + if (++currentPost >= numPosts) { + return callback.call(null, firstError); + } + return next(); + } + firstError = error; + } + if (++currentPost >= numPosts) { + return callback.call(null, firstError); + } + next(); + }); + + callMiddlewareFunction(post, context, + [firstError].concat(newArgs).concat([_cb]), _cb); + } else { + if (++currentPost >= numPosts) { + return callback.call(null, firstError); + } + next(); + } + } else { + const _cb = decorateNextFn(function(error) { + if (error) { + if (error instanceof Kareem.overwriteResult) { + args = error.args; + if (++currentPost >= numPosts) { + return callback.apply(null, [null].concat(args)); + } + return next(); + } + firstError = error; + return next(); + } + + if (++currentPost >= numPosts) { + return callback.apply(null, [null].concat(args)); + } + + next(); + }); + + if (isErrorHandlingMiddleware(posts[currentPost], numArgs)) { + // Skip error handlers if no error + if (++currentPost >= numPosts) { + return callback.apply(null, [null].concat(args)); + } + return next(); + } + if (post.length === numArgs + 1) { + callMiddlewareFunction(post, context, newArgs.concat([_cb]), _cb); + } else { + let error; + let maybePromiseLike; + try { + maybePromiseLike = post.apply(context, newArgs); + } catch (err) { + error = err; + firstError = err; + } + + if (isPromiseLike(maybePromiseLike)) { + return maybePromiseLike.then( + (res) => { + _cb(res instanceof Kareem.overwriteResult ? res : null); + }, + err => _cb(err) + ); + } + + if (maybePromiseLike instanceof Kareem.overwriteResult) { + args = maybePromiseLike.args; + } + + if (++currentPost >= numPosts) { + return callback.apply(null, [error].concat(args)); + } + + next(); + } + } + } + + next(); +}; + +/** + * Execute all "post" hooks for "name" synchronously + * @param {String} name The hook name to execute + * @param {*} context Overwrite the "this" for the hook + * @param {Array|Function} args Apply custom arguments to the hook + * @returns {Array} The used arguments + */ +Kareem.prototype.execPostSync = function(name, context, args) { + const posts = this._posts.get(name) || []; + const numPosts = posts.length; + + for (let i = 0; i < numPosts; ++i) { + const res = posts[i].fn.apply(context, args || []); + if (res instanceof Kareem.overwriteResult) { + args = res.args; + } + } + + return args; +}; + +/** + * Create a synchronous wrapper for "fn" + * @param {String} name The name of the hook + * @param {Function} fn The function to wrap + * @returns {Function} The wrapped function + */ +Kareem.prototype.createWrapperSync = function(name, fn) { + const _this = this; + return function syncWrapper() { + _this.execPreSync(name, this, arguments); + + const toReturn = fn.apply(this, arguments); + + const result = _this.execPostSync(name, this, [toReturn]); + + return result[0]; + }; +}; + +function _handleWrapError(instance, error, name, context, args, options, callback) { + if (options.useErrorHandlers) { + return instance.execPost(name, context, args, { error: error }, function(error) { + return typeof callback === 'function' && callback(error); + }); + } else { + return typeof callback === 'function' && callback(error); + } +} + +/** + * Executes pre hooks, followed by the wrapped function, followed by post hooks. + * @param {String} name The name of the hook + * @param {Function} fn The function for the hook + * @param {*} context Overwrite the "this" for the hook + * @param {Array} args Apply custom arguments to the hook + * @param {Object} [options] + * @param {Boolean} [options.checkForPromise] + * @returns {void} + */ +Kareem.prototype.wrap = function(name, fn, context, args, options) { + const lastArg = (args.length > 0 ? args[args.length - 1] : null); + const argsWithoutCb = Array.from(args); + typeof lastArg === 'function' && argsWithoutCb.pop(); + const _this = this; + + options = options || {}; + const checkForPromise = options.checkForPromise; + + this.execPre(name, context, args, function(error) { + if (error && !(error instanceof Kareem.skipWrappedFunction)) { + const numCallbackParams = options.numCallbackParams || 0; + const errorArgs = options.contextParameter ? [context] : []; + for (let i = errorArgs.length; i < numCallbackParams; ++i) { + errorArgs.push(null); + } + return _handleWrapError(_this, error, name, context, errorArgs, + options, lastArg); + } + + const numParameters = fn.length; + let ret; + + if (error instanceof Kareem.skipWrappedFunction) { + ret = error.args[0]; + return _cb(null, ...error.args); + } else { + try { + ret = fn.apply(context, argsWithoutCb.concat(_cb)); + } catch (err) { + return _cb(err); + } + } + + if (checkForPromise) { + if (isPromiseLike(ret)) { + // Thenable, use it + return ret.then( + res => _cb(null, res), + err => _cb(err) + ); + } + + // If `fn()` doesn't have a callback argument and doesn't return a + // promise, assume it is sync + if (numParameters < argsWithoutCb.length + 1) { + return _cb(null, ret); + } + } + + function _cb() { + const argsWithoutError = Array.from(arguments); + argsWithoutError.shift(); + if (options.nullResultByDefault && argsWithoutError.length === 0) { + argsWithoutError.push(null); + } + if (arguments[0]) { + // Assume error + return _handleWrapError(_this, arguments[0], name, context, + argsWithoutError, options, lastArg); + } else { + _this.execPost(name, context, argsWithoutError, function() { + if (lastArg === null) { + return; + } + arguments[0] + ? lastArg(arguments[0]) + : lastArg.apply(context, arguments); + }); + } + } + }); +}; + +/** + * Filter current instance for something specific and return the filtered clone + * @param {Function} fn The filter function + * @returns {Kareem} The cloned and filtered instance + */ +Kareem.prototype.filter = function(fn) { + const clone = this.clone(); + + const pres = Array.from(clone._pres.keys()); + for (const name of pres) { + const hooks = this._pres.get(name). + map(h => Object.assign({}, h, { name: name })). + filter(fn); + + if (hooks.length === 0) { + clone._pres.delete(name); + continue; + } + + hooks.numAsync = hooks.filter(h => h.isAsync).length; + + clone._pres.set(name, hooks); + } + + const posts = Array.from(clone._posts.keys()); + for (const name of posts) { + const hooks = this._posts.get(name). + map(h => Object.assign({}, h, { name: name })). + filter(fn); + + if (hooks.length === 0) { + clone._posts.delete(name); + continue; + } + + clone._posts.set(name, hooks); + } + + return clone; +}; + +/** + * Check for a "name" to exist either in pre or post hooks + * @param {String} name The name of the hook + * @returns {Boolean} "true" if found, "false" otherwise + */ +Kareem.prototype.hasHooks = function(name) { + return this._pres.has(name) || this._posts.has(name); +}; + +/** + * Create a Wrapper for "fn" on "name" and return the wrapped function + * @param {String} name The name of the hook + * @param {Function} fn The function to wrap + * @param {*} context Overwrite the "this" for the hook + * @param {Object} [options] + * @returns {Function} The wrapped function + */ +Kareem.prototype.createWrapper = function(name, fn, context, options) { + const _this = this; + if (!this.hasHooks(name)) { + // Fast path: if there's no hooks for this function, just return the + // function wrapped in a nextTick() + return function() { + nextTick(() => fn.apply(this, arguments)); + }; + } + return function() { + const _context = context || this; + _this.wrap(name, fn, _context, Array.from(arguments), options); + }; +}; + +/** + * Register a new hook for "pre" + * @param {String} name The name of the hook + * @param {Boolean} [isAsync] + * @param {Function} fn The function to register for "name" + * @param {never} error Unused + * @param {Boolean} [unshift] Wheter to "push" or to "unshift" the new hook + * @returns {Kareem} + */ +Kareem.prototype.pre = function(name, isAsync, fn, error, unshift) { + let options = {}; + if (typeof isAsync === 'object' && isAsync !== null) { + options = isAsync; + isAsync = options.isAsync; + } else if (typeof arguments[1] !== 'boolean') { + fn = isAsync; + isAsync = false; + } + + const pres = this._pres.get(name) || []; + this._pres.set(name, pres); + + if (isAsync) { + pres.numAsync = pres.numAsync || 0; + ++pres.numAsync; + } + + if (typeof fn !== 'function') { + throw new Error('pre() requires a function, got "' + typeof fn + '"'); + } + + if (unshift) { + pres.unshift(Object.assign({}, options, { fn: fn, isAsync: isAsync })); + } else { + pres.push(Object.assign({}, options, { fn: fn, isAsync: isAsync })); + } + + return this; +}; + +/** + * Register a new hook for "post" + * @param {String} name The name of the hook + * @param {Object} [options] + * @param {Function} fn The function to register for "name" + * @param {Boolean} [unshift] Wheter to "push" or to "unshift" the new hook + * @returns {Kareem} + */ +Kareem.prototype.post = function(name, options, fn, unshift) { + const posts = this._posts.get(name) || []; + + if (typeof options === 'function') { + unshift = !!fn; + fn = options; + options = {}; + } + + if (typeof fn !== 'function') { + throw new Error('post() requires a function, got "' + typeof fn + '"'); + } + + if (unshift) { + posts.unshift(Object.assign({}, options, { fn: fn })); + } else { + posts.push(Object.assign({}, options, { fn: fn })); + } + this._posts.set(name, posts); + return this; +}; + +/** + * Clone the current instance + * @returns {Kareem} The cloned instance + */ +Kareem.prototype.clone = function() { + const n = new Kareem(); + + for (const key of this._pres.keys()) { + const clone = this._pres.get(key).slice(); + clone.numAsync = this._pres.get(key).numAsync; + n._pres.set(key, clone); + } + for (const key of this._posts.keys()) { + n._posts.set(key, this._posts.get(key).slice()); + } + + return n; +}; + +/** + * Merge "other" into self or "clone" + * @param {Kareem} other The instance to merge with + * @param {Kareem} [clone] The instance to merge onto (if not defined, using "this") + * @returns {Kareem} The merged instance + */ +Kareem.prototype.merge = function(other, clone) { + clone = arguments.length === 1 ? true : clone; + const ret = clone ? this.clone() : this; + + for (const key of other._pres.keys()) { + const sourcePres = ret._pres.get(key) || []; + const deduplicated = other._pres.get(key). + // Deduplicate based on `fn` + filter(p => sourcePres.map(_p => _p.fn).indexOf(p.fn) === -1); + const combined = sourcePres.concat(deduplicated); + combined.numAsync = sourcePres.numAsync || 0; + combined.numAsync += deduplicated.filter(p => p.isAsync).length; + ret._pres.set(key, combined); + } + for (const key of other._posts.keys()) { + const sourcePosts = ret._posts.get(key) || []; + const deduplicated = other._posts.get(key). + filter(p => sourcePosts.indexOf(p) === -1); + ret._posts.set(key, sourcePosts.concat(deduplicated)); + } + + return ret; +}; + +function callMiddlewareFunction(fn, context, args, next) { + let maybePromiseLike; + try { + maybePromiseLike = fn.apply(context, args); + } catch (error) { + return next(error); + } + + if (isPromiseLike(maybePromiseLike)) { + maybePromiseLike.then(() => next(), err => next(err)); + } +} + +function isPromiseLike(v) { + return (typeof v === 'object' && v !== null && typeof v.then === 'function'); +} + +function decorateNextFn(fn) { + let called = false; + const _this = this; + return function() { + // Ensure this function can only be called once + if (called) { + return; + } + called = true; + // Make sure to clear the stack so try/catch doesn't catch errors + // in subsequent middleware + return nextTick(() => fn.apply(_this, arguments)); + }; +} + +const nextTick = typeof process === 'object' && process !== null && process.nextTick || function nextTick(cb) { + setTimeout(cb, 0); +}; + +function isErrorHandlingMiddleware(post, numArgs) { + if (post.errorHandler) { + return true; + } + return post.fn.length === numArgs + 2; +} + +module.exports = Kareem; diff --git a/week-3/04-course-app-hard/node_modules/kareem/package.json b/week-3/04-course-app-hard/node_modules/kareem/package.json new file mode 100644 index 000000000..6c8af399d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/kareem/package.json @@ -0,0 +1,28 @@ +{ + "name": "kareem", + "version": "2.6.3", + "description": "Next-generation take on pre/post function hooks", + "main": "index.js", + "scripts": { + "lint": "eslint .", + "test": "mocha ./test/*", + "test-coverage": "nyc --reporter lcov mocha ./test/*", + "docs": "node ./docs.js" + }, + "repository": { + "type": "git", + "url": "git://github.com/mongoosejs/kareem.git" + }, + "devDependencies": { + "acquit": "1.x", + "acquit-ignore": "0.2.x", + "eslint": "8.20.0", + "mocha": "9.2.0", + "nyc": "15.1.0" + }, + "author": "Valeri Karpov ", + "license": "Apache-2.0", + "engines": { + "node": ">=12.0.0" + } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.includes/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.includes/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.includes/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/04-course-app-hard/node_modules/lodash.includes/README.md b/week-3/04-course-app-hard/node_modules/lodash.includes/README.md new file mode 100644 index 000000000..26e93775f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.includes/README.md @@ -0,0 +1,18 @@ +# lodash.includes v4.3.0 + +The [lodash](https://lodash.com/) method `_.includes` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.includes +``` + +In Node.js: +```js +var includes = require('lodash.includes'); +``` + +See the [documentation](https://lodash.com/docs#includes) or [package source](https://github.com/lodash/lodash/blob/4.3.0-npm-packages/lodash.includes) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.includes/index.js b/week-3/04-course-app-hard/node_modules/lodash.includes/index.js new file mode 100644 index 000000000..e88d53380 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.includes/index.js @@ -0,0 +1,745 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + +/** `Object#toString` result references. */ +var argsTag = '[object Arguments]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + stringTag = '[object String]', + symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Used to detect unsigned integer values. */ +var reIsUint = /^(?:0|[1-9]\d*)$/; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ +function arrayMap(array, iteratee) { + var index = -1, + length = array ? array.length : 0, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; +} + +/** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ +function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ +function baseIndexOf(array, value, fromIndex) { + if (value !== value) { + return baseFindIndex(array, baseIsNaN, fromIndex); + } + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ +function baseIsNaN(value) { + return value !== value; +} + +/** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ +function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; +} + +/** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ +function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); +} + +/** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ +function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; +} + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** Built-in value references. */ +var propertyIsEnumerable = objectProto.propertyIsEnumerable; + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max; + +/** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ +function arrayLikeKeys(value, inherited) { + // Safari 8.1 makes `arguments.callee` enumerable in strict mode. + // Safari 9 makes `arguments.length` enumerable in strict mode. + var result = (isArray(value) || isArguments(value)) + ? baseTimes(value.length, String) + : []; + + var length = result.length, + skipIndexes = !!length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && (key == 'length' || isIndex(key, length)))) { + result.push(key); + } + } + return result; +} + +/** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ +function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; +} + +/** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ +function isIndex(value, length) { + length = length == null ? MAX_SAFE_INTEGER : length; + return !!length && + (typeof value == 'number' || reIsUint.test(value)) && + (value > -1 && value % 1 == 0 && value < length); +} + +/** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ +function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; +} + +/** + * Checks if `value` is in `collection`. If `collection` is a string, it's + * checked for a substring of `value`, otherwise + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * is used for equality comparisons. If `fromIndex` is negative, it's used as + * the offset from the end of `collection`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. + * @returns {boolean} Returns `true` if `value` is found, else `false`. + * @example + * + * _.includes([1, 2, 3], 1); + * // => true + * + * _.includes([1, 2, 3], 1, 2); + * // => false + * + * _.includes({ 'a': 1, 'b': 2 }, 1); + * // => true + * + * _.includes('abcd', 'bc'); + * // => true + */ +function includes(collection, value, fromIndex, guard) { + collection = isArrayLike(collection) ? collection : values(collection); + fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; + + var length = collection.length; + if (fromIndex < 0) { + fromIndex = nativeMax(length + fromIndex, 0); + } + return isString(collection) + ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) + : (!!length && baseIndexOf(collection, value, fromIndex) > -1); +} + +/** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ +function isArguments(value) { + // Safari 8.1 makes `arguments.callee` enumerable in strict mode. + return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') && + (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag); +} + +/** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ +var isArray = Array.isArray; + +/** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ +function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); +} + +/** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ +function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); +} + +/** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ +function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 8-9 which returns 'object' for typed array and other constructors. + var tag = isObject(value) ? objectToString.call(value) : ''; + return tag == funcTag || tag == genTag; +} + +/** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ +function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ +function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag); +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ +function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; +} + +/** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ +function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +/** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ +function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); +} + +/** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ +function values(object) { + return object ? baseValues(object, keys(object)) : []; +} + +module.exports = includes; diff --git a/week-3/04-course-app-hard/node_modules/lodash.includes/package.json b/week-3/04-course-app-hard/node_modules/lodash.includes/package.json new file mode 100644 index 000000000..a02e645d6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.includes/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.includes", + "version": "4.3.0", + "description": "The lodash method `_.includes` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, includes", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.isboolean/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.isboolean/LICENSE new file mode 100644 index 000000000..b054ca5a3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isboolean/LICENSE @@ -0,0 +1,22 @@ +Copyright 2012-2016 The Dojo Foundation +Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isboolean/README.md b/week-3/04-course-app-hard/node_modules/lodash.isboolean/README.md new file mode 100644 index 000000000..b3c476b02 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isboolean/README.md @@ -0,0 +1,18 @@ +# lodash.isboolean v3.0.3 + +The [lodash](https://lodash.com/) method `_.isBoolean` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isboolean +``` + +In Node.js: +```js +var isBoolean = require('lodash.isboolean'); +``` + +See the [documentation](https://lodash.com/docs#isBoolean) or [package source](https://github.com/lodash/lodash/blob/3.0.3-npm-packages/lodash.isboolean) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isboolean/index.js b/week-3/04-course-app-hard/node_modules/lodash.isboolean/index.js new file mode 100644 index 000000000..23bbabdc3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isboolean/index.js @@ -0,0 +1,70 @@ +/** + * lodash 3.0.3 (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright 2012-2016 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ + +/** `Object#toString` result references. */ +var boolTag = '[object Boolean]'; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ +function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && objectToString.call(value) == boolTag); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +module.exports = isBoolean; diff --git a/week-3/04-course-app-hard/node_modules/lodash.isboolean/package.json b/week-3/04-course-app-hard/node_modules/lodash.isboolean/package.json new file mode 100644 index 000000000..01d6e8b91 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isboolean/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isboolean", + "version": "3.0.3", + "description": "The lodash method `_.isBoolean` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isboolean", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.isinteger/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.isinteger/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isinteger/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isinteger/README.md b/week-3/04-course-app-hard/node_modules/lodash.isinteger/README.md new file mode 100644 index 000000000..3a78567b6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isinteger/README.md @@ -0,0 +1,18 @@ +# lodash.isinteger v4.0.4 + +The [lodash](https://lodash.com/) method `_.isInteger` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isinteger +``` + +In Node.js: +```js +var isInteger = require('lodash.isinteger'); +``` + +See the [documentation](https://lodash.com/docs#isInteger) or [package source](https://github.com/lodash/lodash/blob/4.0.4-npm-packages/lodash.isinteger) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isinteger/index.js b/week-3/04-course-app-hard/node_modules/lodash.isinteger/index.js new file mode 100644 index 000000000..3bf06f007 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isinteger/index.js @@ -0,0 +1,265 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + +/** `Object#toString` result references. */ +var symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is an integer. + * + * **Note:** This method is based on + * [`Number.isInteger`](https://mdn.io/Number/isInteger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an integer, else `false`. + * @example + * + * _.isInteger(3); + * // => true + * + * _.isInteger(Number.MIN_VALUE); + * // => false + * + * _.isInteger(Infinity); + * // => false + * + * _.isInteger('3'); + * // => false + */ +function isInteger(value) { + return typeof value == 'number' && value == toInteger(value); +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ +function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; +} + +/** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ +function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +module.exports = isInteger; diff --git a/week-3/04-course-app-hard/node_modules/lodash.isinteger/package.json b/week-3/04-course-app-hard/node_modules/lodash.isinteger/package.json new file mode 100644 index 000000000..92db256f1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isinteger/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isinteger", + "version": "4.0.4", + "description": "The lodash method `_.isInteger` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isinteger", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.isnumber/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.isnumber/LICENSE new file mode 100644 index 000000000..b054ca5a3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isnumber/LICENSE @@ -0,0 +1,22 @@ +Copyright 2012-2016 The Dojo Foundation +Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isnumber/README.md b/week-3/04-course-app-hard/node_modules/lodash.isnumber/README.md new file mode 100644 index 000000000..a1d434dd6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isnumber/README.md @@ -0,0 +1,18 @@ +# lodash.isnumber v3.0.3 + +The [lodash](https://lodash.com/) method `_.isNumber` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isnumber +``` + +In Node.js: +```js +var isNumber = require('lodash.isnumber'); +``` + +See the [documentation](https://lodash.com/docs#isNumber) or [package source](https://github.com/lodash/lodash/blob/3.0.3-npm-packages/lodash.isnumber) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isnumber/index.js b/week-3/04-course-app-hard/node_modules/lodash.isnumber/index.js new file mode 100644 index 000000000..35a85732b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isnumber/index.js @@ -0,0 +1,79 @@ +/** + * lodash 3.0.3 (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright 2012-2016 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ + +/** `Object#toString` result references. */ +var numberTag = '[object Number]'; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified + * as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ +function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && objectToString.call(value) == numberTag); +} + +module.exports = isNumber; diff --git a/week-3/04-course-app-hard/node_modules/lodash.isnumber/package.json b/week-3/04-course-app-hard/node_modules/lodash.isnumber/package.json new file mode 100644 index 000000000..4c33c2a31 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isnumber/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isnumber", + "version": "3.0.3", + "description": "The lodash method `_.isNumber` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isnumber", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.isplainobject/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isplainobject/README.md b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/README.md new file mode 100644 index 000000000..aeefd74da --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/README.md @@ -0,0 +1,18 @@ +# lodash.isplainobject v4.0.6 + +The [lodash](https://lodash.com/) method `_.isPlainObject` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isplainobject +``` + +In Node.js: +```js +var isPlainObject = require('lodash.isplainobject'); +``` + +See the [documentation](https://lodash.com/docs#isPlainObject) or [package source](https://github.com/lodash/lodash/blob/4.0.6-npm-packages/lodash.isplainobject) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isplainobject/index.js b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/index.js new file mode 100644 index 000000000..0f820ee7a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/index.js @@ -0,0 +1,139 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** `Object#toString` result references. */ +var objectTag = '[object Object]'; + +/** + * Checks if `value` is a host object in IE < 9. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a host object, else `false`. + */ +function isHostObject(value) { + // Many host objects are `Object` objects that can coerce to strings + // despite having improperly defined `toString` methods. + var result = false; + if (value != null && typeof value.toString != 'function') { + try { + result = !!(value + ''); + } catch (e) {} + } + return result; +} + +/** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ +function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; +} + +/** Used for built-in method references. */ +var funcProto = Function.prototype, + objectProto = Object.prototype; + +/** Used to resolve the decompiled source of functions. */ +var funcToString = funcProto.toString; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** Used to infer the `Object` constructor. */ +var objectCtorString = funcToString.call(Object); + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** Built-in value references. */ +var getPrototype = overArg(Object.getPrototypeOf, Object); + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ +function isPlainObject(value) { + if (!isObjectLike(value) || + objectToString.call(value) != objectTag || isHostObject(value)) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return (typeof Ctor == 'function' && + Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString); +} + +module.exports = isPlainObject; diff --git a/week-3/04-course-app-hard/node_modules/lodash.isplainobject/package.json b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/package.json new file mode 100644 index 000000000..86f6a07e7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isplainobject/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isplainobject", + "version": "4.0.6", + "description": "The lodash method `_.isPlainObject` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isplainobject", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.isstring/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.isstring/LICENSE new file mode 100644 index 000000000..b054ca5a3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isstring/LICENSE @@ -0,0 +1,22 @@ +Copyright 2012-2016 The Dojo Foundation +Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isstring/README.md b/week-3/04-course-app-hard/node_modules/lodash.isstring/README.md new file mode 100644 index 000000000..f184029aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isstring/README.md @@ -0,0 +1,18 @@ +# lodash.isstring v4.0.1 + +The [lodash](https://lodash.com/) method `_.isString` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.isstring +``` + +In Node.js: +```js +var isString = require('lodash.isstring'); +``` + +See the [documentation](https://lodash.com/docs#isString) or [package source](https://github.com/lodash/lodash/blob/4.0.1-npm-packages/lodash.isstring) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.isstring/index.js b/week-3/04-course-app-hard/node_modules/lodash.isstring/index.js new file mode 100644 index 000000000..408225c52 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isstring/index.js @@ -0,0 +1,95 @@ +/** + * lodash 4.0.1 (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright 2012-2016 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ + +/** `Object#toString` result references. */ +var stringTag = '[object String]'; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @type Function + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ +var isArray = Array.isArray; + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ +function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag); +} + +module.exports = isString; diff --git a/week-3/04-course-app-hard/node_modules/lodash.isstring/package.json b/week-3/04-course-app-hard/node_modules/lodash.isstring/package.json new file mode 100644 index 000000000..1331535d6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.isstring/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.isstring", + "version": "4.0.1", + "description": "The lodash method `_.isString` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, isstring", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/lodash.once/LICENSE b/week-3/04-course-app-hard/node_modules/lodash.once/LICENSE new file mode 100644 index 000000000..e0c69d560 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.once/LICENSE @@ -0,0 +1,47 @@ +Copyright jQuery Foundation and other contributors + +Based on Underscore.js, copyright Jeremy Ashkenas, +DocumentCloud and Investigative Reporters & Editors + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/lodash/lodash + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code displayed within the prose of the +documentation. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +Files located in the node_modules and vendor directories are externally +maintained libraries used by this software which have their own +licenses; we recommend you read them, as their terms may differ from the +terms above. diff --git a/week-3/04-course-app-hard/node_modules/lodash.once/README.md b/week-3/04-course-app-hard/node_modules/lodash.once/README.md new file mode 100644 index 000000000..c4a2f1698 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.once/README.md @@ -0,0 +1,18 @@ +# lodash.once v4.1.1 + +The [lodash](https://lodash.com/) method `_.once` exported as a [Node.js](https://nodejs.org/) module. + +## Installation + +Using npm: +```bash +$ {sudo -H} npm i -g npm +$ npm i --save lodash.once +``` + +In Node.js: +```js +var once = require('lodash.once'); +``` + +See the [documentation](https://lodash.com/docs#once) or [package source](https://github.com/lodash/lodash/blob/4.1.1-npm-packages/lodash.once) for more details. diff --git a/week-3/04-course-app-hard/node_modules/lodash.once/index.js b/week-3/04-course-app-hard/node_modules/lodash.once/index.js new file mode 100644 index 000000000..414ceb331 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.once/index.js @@ -0,0 +1,294 @@ +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as the `TypeError` message for "Functions" methods. */ +var FUNC_ERROR_TEXT = 'Expected a function'; + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + +/** `Object#toString` result references. */ +var symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ +function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; +} + +/** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ +function once(func) { + return before(2, func); +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ +function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; +} + +/** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ +function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +module.exports = once; diff --git a/week-3/04-course-app-hard/node_modules/lodash.once/package.json b/week-3/04-course-app-hard/node_modules/lodash.once/package.json new file mode 100644 index 000000000..fae782c22 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/lodash.once/package.json @@ -0,0 +1,17 @@ +{ + "name": "lodash.once", + "version": "4.1.1", + "description": "The lodash method `_.once` exported as a module.", + "homepage": "https://lodash.com/", + "icon": "https://lodash.com/icon.svg", + "license": "MIT", + "keywords": "lodash-modularized, once", + "author": "John-David Dalton (http://allyoucanleet.com/)", + "contributors": [ + "John-David Dalton (http://allyoucanleet.com/)", + "Blaine Bublitz (https://github.com/phated)", + "Mathias Bynens (https://mathiasbynens.be/)" + ], + "repository": "lodash/lodash", + "scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" } +} diff --git a/week-3/04-course-app-hard/node_modules/memory-pager/.travis.yml b/week-3/04-course-app-hard/node_modules/memory-pager/.travis.yml new file mode 100644 index 000000000..1c4ab31e9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/memory-pager/.travis.yml @@ -0,0 +1,4 @@ +language: node_js +node_js: + - '4' + - '6' diff --git a/week-3/04-course-app-hard/node_modules/memory-pager/LICENSE b/week-3/04-course-app-hard/node_modules/memory-pager/LICENSE new file mode 100644 index 000000000..56fce0895 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/memory-pager/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2017 Mathias Buus + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/memory-pager/README.md b/week-3/04-course-app-hard/node_modules/memory-pager/README.md new file mode 100644 index 000000000..aed176140 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/memory-pager/README.md @@ -0,0 +1,65 @@ +# memory-pager + +Access memory using small fixed sized buffers instead of allocating a huge buffer. +Useful if you are implementing sparse data structures (such as large bitfield). + +![travis](https://travis-ci.org/mafintosh/memory-pager.svg?branch=master) + +``` +npm install memory-pager +``` + +## Usage + +``` js +var pager = require('paged-memory') + +var pages = pager(1024) // use 1kb per page + +var page = pages.get(10) // get page #10 + +console.log(page.offset) // 10240 +console.log(page.buffer) // a blank 1kb buffer +``` + +## API + +#### `var pages = pager(pageSize)` + +Create a new pager. `pageSize` defaults to `1024`. + +#### `var page = pages.get(pageNumber, [noAllocate])` + +Get a page. The page will be allocated at first access. + +Optionally you can set the `noAllocate` flag which will make the +method return undefined if no page has been allocated already + +A page looks like this + +``` js +{ + offset: byteOffset, + buffer: bufferWithPageSize +} +``` + +#### `pages.set(pageNumber, buffer)` + +Explicitly set the buffer for a page. + +#### `pages.updated(page)` + +Mark a page as updated. + +#### `pages.lastUpdate()` + +Get the last page that was updated. + +#### `var buf = pages.toBuffer()` + +Concat all pages allocated pages into a single buffer + +## License + +MIT diff --git a/week-3/04-course-app-hard/node_modules/memory-pager/index.js b/week-3/04-course-app-hard/node_modules/memory-pager/index.js new file mode 100644 index 000000000..687f346f3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/memory-pager/index.js @@ -0,0 +1,160 @@ +module.exports = Pager + +function Pager (pageSize, opts) { + if (!(this instanceof Pager)) return new Pager(pageSize, opts) + + this.length = 0 + this.updates = [] + this.path = new Uint16Array(4) + this.pages = new Array(32768) + this.maxPages = this.pages.length + this.level = 0 + this.pageSize = pageSize || 1024 + this.deduplicate = opts ? opts.deduplicate : null + this.zeros = this.deduplicate ? alloc(this.deduplicate.length) : null +} + +Pager.prototype.updated = function (page) { + while (this.deduplicate && page.buffer[page.deduplicate] === this.deduplicate[page.deduplicate]) { + page.deduplicate++ + if (page.deduplicate === this.deduplicate.length) { + page.deduplicate = 0 + if (page.buffer.equals && page.buffer.equals(this.deduplicate)) page.buffer = this.deduplicate + break + } + } + if (page.updated || !this.updates) return + page.updated = true + this.updates.push(page) +} + +Pager.prototype.lastUpdate = function () { + if (!this.updates || !this.updates.length) return null + var page = this.updates.pop() + page.updated = false + return page +} + +Pager.prototype._array = function (i, noAllocate) { + if (i >= this.maxPages) { + if (noAllocate) return + grow(this, i) + } + + factor(i, this.path) + + var arr = this.pages + + for (var j = this.level; j > 0; j--) { + var p = this.path[j] + var next = arr[p] + + if (!next) { + if (noAllocate) return + next = arr[p] = new Array(32768) + } + + arr = next + } + + return arr +} + +Pager.prototype.get = function (i, noAllocate) { + var arr = this._array(i, noAllocate) + var first = this.path[0] + var page = arr && arr[first] + + if (!page && !noAllocate) { + page = arr[first] = new Page(i, alloc(this.pageSize)) + if (i >= this.length) this.length = i + 1 + } + + if (page && page.buffer === this.deduplicate && this.deduplicate && !noAllocate) { + page.buffer = copy(page.buffer) + page.deduplicate = 0 + } + + return page +} + +Pager.prototype.set = function (i, buf) { + var arr = this._array(i, false) + var first = this.path[0] + + if (i >= this.length) this.length = i + 1 + + if (!buf || (this.zeros && buf.equals && buf.equals(this.zeros))) { + arr[first] = undefined + return + } + + if (this.deduplicate && buf.equals && buf.equals(this.deduplicate)) { + buf = this.deduplicate + } + + var page = arr[first] + var b = truncate(buf, this.pageSize) + + if (page) page.buffer = b + else arr[first] = new Page(i, b) +} + +Pager.prototype.toBuffer = function () { + var list = new Array(this.length) + var empty = alloc(this.pageSize) + var ptr = 0 + + while (ptr < list.length) { + var arr = this._array(ptr, true) + for (var i = 0; i < 32768 && ptr < list.length; i++) { + list[ptr++] = (arr && arr[i]) ? arr[i].buffer : empty + } + } + + return Buffer.concat(list) +} + +function grow (pager, index) { + while (pager.maxPages < index) { + var old = pager.pages + pager.pages = new Array(32768) + pager.pages[0] = old + pager.level++ + pager.maxPages *= 32768 + } +} + +function truncate (buf, len) { + if (buf.length === len) return buf + if (buf.length > len) return buf.slice(0, len) + var cpy = alloc(len) + buf.copy(cpy) + return cpy +} + +function alloc (size) { + if (Buffer.alloc) return Buffer.alloc(size) + var buf = new Buffer(size) + buf.fill(0) + return buf +} + +function copy (buf) { + var cpy = Buffer.allocUnsafe ? Buffer.allocUnsafe(buf.length) : new Buffer(buf.length) + buf.copy(cpy) + return cpy +} + +function Page (i, buf) { + this.offset = i * buf.length + this.buffer = buf + this.updated = false + this.deduplicate = 0 +} + +function factor (n, out) { + n = (n - (out[0] = (n & 32767))) / 32768 + n = (n - (out[1] = (n & 32767))) / 32768 + out[3] = ((n - (out[2] = (n & 32767))) / 32768) & 32767 +} diff --git a/week-3/04-course-app-hard/node_modules/memory-pager/package.json b/week-3/04-course-app-hard/node_modules/memory-pager/package.json new file mode 100644 index 000000000..f4847e8cd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/memory-pager/package.json @@ -0,0 +1,24 @@ +{ + "name": "memory-pager", + "version": "1.5.0", + "description": "Access memory using small fixed sized buffers", + "main": "index.js", + "dependencies": {}, + "devDependencies": { + "standard": "^9.0.0", + "tape": "^4.6.3" + }, + "scripts": { + "test": "standard && tape test.js" + }, + "repository": { + "type": "git", + "url": "https://github.com/mafintosh/memory-pager.git" + }, + "author": "Mathias Buus (@mafintosh)", + "license": "MIT", + "bugs": { + "url": "https://github.com/mafintosh/memory-pager/issues" + }, + "homepage": "https://github.com/mafintosh/memory-pager" +} diff --git a/week-3/04-course-app-hard/node_modules/memory-pager/test.js b/week-3/04-course-app-hard/node_modules/memory-pager/test.js new file mode 100644 index 000000000..163821003 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/memory-pager/test.js @@ -0,0 +1,80 @@ +var tape = require('tape') +var pager = require('./') + +tape('get page', function (t) { + var pages = pager(1024) + + var page = pages.get(0) + + t.same(page.offset, 0) + t.same(page.buffer, Buffer.alloc(1024)) + t.end() +}) + +tape('get page twice', function (t) { + var pages = pager(1024) + t.same(pages.length, 0) + + var page = pages.get(0) + + t.same(page.offset, 0) + t.same(page.buffer, Buffer.alloc(1024)) + t.same(pages.length, 1) + + var other = pages.get(0) + + t.same(other, page) + t.end() +}) + +tape('get no mutable page', function (t) { + var pages = pager(1024) + + t.ok(!pages.get(141, true)) + t.ok(pages.get(141)) + t.ok(pages.get(141, true)) + + t.end() +}) + +tape('get far out page', function (t) { + var pages = pager(1024) + + var page = pages.get(1000000) + + t.same(page.offset, 1000000 * 1024) + t.same(page.buffer, Buffer.alloc(1024)) + t.same(pages.length, 1000000 + 1) + + var other = pages.get(1) + + t.same(other.offset, 1024) + t.same(other.buffer, Buffer.alloc(1024)) + t.same(pages.length, 1000000 + 1) + t.ok(other !== page) + + t.end() +}) + +tape('updates', function (t) { + var pages = pager(1024) + + t.same(pages.lastUpdate(), null) + + var page = pages.get(10) + + page.buffer[42] = 1 + pages.updated(page) + + t.same(pages.lastUpdate(), page) + t.same(pages.lastUpdate(), null) + + page.buffer[42] = 2 + pages.updated(page) + pages.updated(page) + + t.same(pages.lastUpdate(), page) + t.same(pages.lastUpdate(), null) + + t.end() +}) diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/.esm-wrapper.mjs b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/.esm-wrapper.mjs new file mode 100644 index 000000000..a0f5be52e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/.esm-wrapper.mjs @@ -0,0 +1,6 @@ +import mod from "./lib/index.js"; + +export default mod["default"]; +export const CommaAndColonSeparatedRecord = mod.CommaAndColonSeparatedRecord; +export const ConnectionString = mod.ConnectionString; +export const redactConnectionString = mod.redactConnectionString; diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/LICENSE b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/LICENSE new file mode 100644 index 000000000..d57f55f4e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/LICENSE @@ -0,0 +1,192 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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--git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/README.md b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/README.md new file mode 100644 index 000000000..0eb65d00f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/README.md @@ -0,0 +1,25 @@ +# mongodb-connection-string-url + +MongoDB connection strings, based on the WhatWG URL API + +```js +import ConnectionString from 'mongodb-connection-string-url'; + +const cs = new ConnectionString('mongodb://localhost'); +cs.searchParams.set('readPreference', 'secondary'); +console.log(cs.href); // 'mongodb://localhost/?readPreference=secondary' +``` + +## Deviations from the WhatWG URL package + +- URL parameters are case-insensitive +- The `.host`, `.hostname` and `.port` properties cannot be set, and reading + them does not return meaningful results (and are typed as `never`in TypeScript) +- The `.hosts` property contains a list of all hosts in the connection string +- The `.href` property cannot be set, only read +- There is an additional `.isSRV` property, set to `true` for `mongodb+srv://` +- There is an additional `.clone()` utility method on the prototype + +## LICENSE + +Apache-2.0 diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.d.ts b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.d.ts new file mode 100644 index 000000000..49c18ea29 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.d.ts @@ -0,0 +1,62 @@ +import { URL } from 'whatwg-url'; +import { redactConnectionString, ConnectionStringRedactionOptions } from './redact'; +export { redactConnectionString, ConnectionStringRedactionOptions }; +declare class CaseInsensitiveMap extends Map { + delete(name: K): boolean; + get(name: K): string | undefined; + has(name: K): boolean; + set(name: K, value: any): this; + _normalizeKey(name: any): K; +} +declare abstract class URLWithoutHost extends URL { + abstract get host(): never; + abstract set host(value: never); + abstract get hostname(): never; + abstract set hostname(value: never); + abstract get port(): never; + abstract set port(value: never); + abstract get href(): string; + abstract set href(value: string); +} +export interface ConnectionStringParsingOptions { + looseValidation?: boolean; +} +export declare class ConnectionString extends URLWithoutHost { + _hosts: string[]; + constructor(uri: string, options?: ConnectionStringParsingOptions); + get host(): never; + set host(_ignored: never); + get hostname(): never; + set hostname(_ignored: never); + get port(): never; + set port(_ignored: never); + get href(): string; + set href(_ignored: string); + get isSRV(): boolean; + get hosts(): string[]; + set hosts(list: string[]); + toString(): string; + clone(): ConnectionString; + redact(options?: ConnectionStringRedactionOptions): ConnectionString; + typedSearchParams(): { + append(name: keyof T & string, value: any): void; + delete(name: keyof T & string): void; + get(name: keyof T & string): string | null; + getAll(name: keyof T & string): string[]; + has(name: keyof T & string): boolean; + set(name: keyof T & string, value: any): void; + keys(): IterableIterator; + values(): IterableIterator; + entries(): IterableIterator<[keyof T & string, string]>; + _normalizeKey(name: keyof T & string): string; + [Symbol.iterator](): IterableIterator<[keyof T & string, string]>; + sort(): void; + forEach(callback: (this: THIS_ARG, value: string, name: string, searchParams: any) => void, thisArg?: THIS_ARG | undefined): void; + readonly [Symbol.toStringTag]: "URLSearchParams"; + }; +} +export declare class CommaAndColonSeparatedRecord> extends CaseInsensitiveMap { + constructor(from?: string | null); + toString(): string; +} +export default ConnectionString; diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.js b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.js new file mode 100644 index 000000000..8e4864d20 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.js @@ -0,0 +1,213 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CommaAndColonSeparatedRecord = exports.ConnectionString = exports.redactConnectionString = void 0; +const whatwg_url_1 = require("whatwg-url"); +const redact_1 = require("./redact"); +Object.defineProperty(exports, "redactConnectionString", { enumerable: true, get: function () { return redact_1.redactConnectionString; } }); +const DUMMY_HOSTNAME = '__this_is_a_placeholder__'; +function connectionStringHasValidScheme(connectionString) { + return (connectionString.startsWith('mongodb://') || + connectionString.startsWith('mongodb+srv://')); +} +const HOSTS_REGEX = /^(?[^/]+):\/\/(?:(?[^:@]*)(?::(?[^@]*))?@)?(?(?!:)[^/?@]*)(?.*)/; +class CaseInsensitiveMap extends Map { + delete(name) { + return super.delete(this._normalizeKey(name)); + } + get(name) { + return super.get(this._normalizeKey(name)); + } + has(name) { + return super.has(this._normalizeKey(name)); + } + set(name, value) { + return super.set(this._normalizeKey(name), value); + } + _normalizeKey(name) { + name = `${name}`; + for (const key of this.keys()) { + if (key.toLowerCase() === name.toLowerCase()) { + name = key; + break; + } + } + return name; + } +} +function caseInsenstiveURLSearchParams(Ctor) { + return class CaseInsenstiveURLSearchParams extends Ctor { + append(name, value) { + return super.append(this._normalizeKey(name), value); + } + delete(name) { + return super.delete(this._normalizeKey(name)); + } + get(name) { + return super.get(this._normalizeKey(name)); + } + getAll(name) { + return super.getAll(this._normalizeKey(name)); + } + has(name) { + return super.has(this._normalizeKey(name)); + } + set(name, value) { + return super.set(this._normalizeKey(name), value); + } + keys() { + return super.keys(); + } + values() { + return super.values(); + } + entries() { + return super.entries(); + } + [Symbol.iterator]() { + return super[Symbol.iterator](); + } + _normalizeKey(name) { + return CaseInsensitiveMap.prototype._normalizeKey.call(this, name); + } + }; +} +class URLWithoutHost extends whatwg_url_1.URL { +} +class MongoParseError extends Error { + get name() { + return 'MongoParseError'; + } +} +class ConnectionString extends URLWithoutHost { + constructor(uri, options = {}) { + var _a; + const { looseValidation } = options; + if (!looseValidation && !connectionStringHasValidScheme(uri)) { + throw new MongoParseError('Invalid scheme, expected connection string to start with "mongodb://" or "mongodb+srv://"'); + } + const match = uri.match(HOSTS_REGEX); + if (!match) { + throw new MongoParseError(`Invalid connection string "${uri}"`); + } + const { protocol, username, password, hosts, rest } = (_a = match.groups) !== null && _a !== void 0 ? _a : {}; + if (!looseValidation) { + if (!protocol || !hosts) { + throw new MongoParseError(`Protocol and host list are required in "${uri}"`); + } + try { + decodeURIComponent(username !== null && username !== void 0 ? username : ''); + decodeURIComponent(password !== null && password !== void 0 ? password : ''); + } + catch (err) { + throw new MongoParseError(err.message); + } + const illegalCharacters = /[:/?#[\]@]/gi; + if (username === null || username === void 0 ? void 0 : username.match(illegalCharacters)) { + throw new MongoParseError(`Username contains unescaped characters ${username}`); + } + if (!username || !password) { + const uriWithoutProtocol = uri.replace(`${protocol}://`, ''); + if (uriWithoutProtocol.startsWith('@') || uriWithoutProtocol.startsWith(':')) { + throw new MongoParseError('URI contained empty userinfo section'); + } + } + if (password === null || password === void 0 ? void 0 : password.match(illegalCharacters)) { + throw new MongoParseError('Password contains unescaped characters'); + } + } + let authString = ''; + if (typeof username === 'string') + authString += username; + if (typeof password === 'string') + authString += `:${password}`; + if (authString) + authString += '@'; + try { + super(`${protocol.toLowerCase()}://${authString}${DUMMY_HOSTNAME}${rest}`); + } + catch (err) { + if (looseValidation) { + new ConnectionString(uri, { + ...options, + looseValidation: false + }); + } + if (typeof err.message === 'string') { + err.message = err.message.replace(DUMMY_HOSTNAME, hosts); + } + throw err; + } + this._hosts = hosts.split(','); + if (!looseValidation) { + if (this.isSRV && this.hosts.length !== 1) { + throw new MongoParseError('mongodb+srv URI cannot have multiple service names'); + } + if (this.isSRV && this.hosts.some(host => host.includes(':'))) { + throw new MongoParseError('mongodb+srv URI cannot have port number'); + } + } + if (!this.pathname) { + this.pathname = '/'; + } + Object.setPrototypeOf(this.searchParams, caseInsenstiveURLSearchParams(this.searchParams.constructor).prototype); + } + get host() { return DUMMY_HOSTNAME; } + set host(_ignored) { throw new Error('No single host for connection string'); } + get hostname() { return DUMMY_HOSTNAME; } + set hostname(_ignored) { throw new Error('No single host for connection string'); } + get port() { return ''; } + set port(_ignored) { throw new Error('No single host for connection string'); } + get href() { return this.toString(); } + set href(_ignored) { throw new Error('Cannot set href for connection strings'); } + get isSRV() { + return this.protocol.includes('srv'); + } + get hosts() { + return this._hosts; + } + set hosts(list) { + this._hosts = list; + } + toString() { + return super.toString().replace(DUMMY_HOSTNAME, this.hosts.join(',')); + } + clone() { + return new ConnectionString(this.toString(), { + looseValidation: true + }); + } + redact(options) { + return (0, redact_1.redactValidConnectionString)(this, options); + } + typedSearchParams() { + const sametype = false && new (caseInsenstiveURLSearchParams(whatwg_url_1.URLSearchParams))(); + return this.searchParams; + } + [Symbol.for('nodejs.util.inspect.custom')]() { + const { href, origin, protocol, username, password, hosts, pathname, search, searchParams, hash } = this; + return { href, origin, protocol, username, password, hosts, pathname, search, searchParams, hash }; + } +} +exports.ConnectionString = ConnectionString; +class CommaAndColonSeparatedRecord extends CaseInsensitiveMap { + constructor(from) { + super(); + for (const entry of (from !== null && from !== void 0 ? from : '').split(',')) { + if (!entry) + continue; + const colonIndex = entry.indexOf(':'); + if (colonIndex === -1) { + this.set(entry, ''); + } + else { + this.set(entry.slice(0, colonIndex), entry.slice(colonIndex + 1)); + } + } + } + toString() { + return [...this].map(entry => entry.join(':')).join(','); + } +} +exports.CommaAndColonSeparatedRecord = CommaAndColonSeparatedRecord; +exports.default = ConnectionString; +//# sourceMappingURL=index.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.js.map b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.js.map new file mode 100644 index 000000000..d325062aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/index.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.d.ts b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.d.ts new file mode 100644 index 000000000..94a64defc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.d.ts @@ -0,0 +1,7 @@ +import ConnectionString from './index'; +export interface ConnectionStringRedactionOptions { + redactUsernames?: boolean; + replacementString?: string; +} +export declare function redactValidConnectionString(inputUrl: Readonly, options?: ConnectionStringRedactionOptions): ConnectionString; +export declare function redactConnectionString(uri: string, options?: ConnectionStringRedactionOptions): string; diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.js b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.js new file mode 100644 index 000000000..62c7ba71c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.js @@ -0,0 +1,86 @@ +"use strict"; +var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { + if (k2 === undefined) k2 = k; + var desc = Object.getOwnPropertyDescriptor(m, k); + if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { + desc = { enumerable: true, get: function() { return m[k]; } }; + } + Object.defineProperty(o, k2, desc); +}) : (function(o, m, k, k2) { + if (k2 === undefined) k2 = k; + o[k2] = m[k]; +})); +var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { + Object.defineProperty(o, "default", { enumerable: true, value: v }); +}) : function(o, v) { + o["default"] = v; +}); +var __importStar = (this && this.__importStar) || function (mod) { + if (mod && mod.__esModule) return mod; + var result = {}; + if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); + __setModuleDefault(result, mod); + return result; +}; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.redactConnectionString = exports.redactValidConnectionString = void 0; +const index_1 = __importStar(require("./index")); +function redactValidConnectionString(inputUrl, options) { + var _a, _b; + const url = inputUrl.clone(); + const replacementString = (_a = options === null || options === void 0 ? void 0 : options.replacementString) !== null && _a !== void 0 ? _a : '_credentials_'; + const redactUsernames = (_b = options === null || options === void 0 ? void 0 : options.redactUsernames) !== null && _b !== void 0 ? _b : true; + if ((url.username || url.password) && redactUsernames) { + url.username = replacementString; + url.password = ''; + } + else if (url.password) { + url.password = replacementString; + } + if (url.searchParams.has('authMechanismProperties')) { + const props = new index_1.CommaAndColonSeparatedRecord(url.searchParams.get('authMechanismProperties')); + if (props.get('AWS_SESSION_TOKEN')) { + props.set('AWS_SESSION_TOKEN', replacementString); + url.searchParams.set('authMechanismProperties', props.toString()); + } + } + if (url.searchParams.has('tlsCertificateKeyFilePassword')) { + url.searchParams.set('tlsCertificateKeyFilePassword', replacementString); + } + if (url.searchParams.has('proxyUsername') && redactUsernames) { + url.searchParams.set('proxyUsername', replacementString); + } + if (url.searchParams.has('proxyPassword')) { + url.searchParams.set('proxyPassword', replacementString); + } + return url; +} +exports.redactValidConnectionString = redactValidConnectionString; +function redactConnectionString(uri, options) { + var _a, _b; + const replacementString = (_a = options === null || options === void 0 ? void 0 : options.replacementString) !== null && _a !== void 0 ? _a : ''; + const redactUsernames = (_b = options === null || options === void 0 ? void 0 : options.redactUsernames) !== null && _b !== void 0 ? _b : true; + let parsed; + try { + parsed = new index_1.default(uri); + } + catch (_c) { } + if (parsed) { + options = { ...options, replacementString: '___credentials___' }; + return parsed.redact(options).toString().replace(/___credentials___/g, replacementString); + } + const R = replacementString; + const replacements = [ + uri => uri.replace(redactUsernames ? /(\/\/)(.*)(@)/g : /(\/\/[^@]*:)(.*)(@)/g, `$1${R}$3`), + uri => uri.replace(/(AWS_SESSION_TOKEN(:|%3A))([^,&]+)/gi, `$1${R}`), + uri => uri.replace(/(tlsCertificateKeyFilePassword=)([^&]+)/gi, `$1${R}`), + uri => redactUsernames ? uri.replace(/(proxyUsername=)([^&]+)/gi, `$1${R}`) : uri, + uri => uri.replace(/(proxyPassword=)([^&]+)/gi, `$1${R}`) + ]; + for (const replacer of replacements) { + uri = replacer(uri); + } + return uri; +} +exports.redactConnectionString = redactConnectionString; +//# sourceMappingURL=redact.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.js.map b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.js.map new file mode 100644 index 000000000..24a282b9c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/lib/redact.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/package.json b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/package.json new file mode 100644 index 000000000..92ab0bf03 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb-connection-string-url/package.json @@ -0,0 +1,62 @@ +{ + "name": "mongodb-connection-string-url", + "version": "3.0.1", + "description": "MongoDB connection strings, based on the WhatWG URL API", + "keywords": [ + "password", + "prompt", + "tty" + ], + "homepage": "https://github.com/mongodb-js/mongodb-connection-string-url", + "repository": { + "type": "git", + "url": "https://github.com/mongodb-js/mongodb-connection-string-url.git" + }, + "bugs": { + "url": "https://github.com/mongodb-js/mongodb-connection-string-url/issues" + }, + "main": "lib/index.js", + "exports": { + "require": "./lib/index.js", + "import": "./.esm-wrapper.mjs" + }, + "files": [ + "LICENSE", + "lib", + "package.json", + "README.md", + ".esm-wrapper.mjs" + ], + "scripts": { + "lint": "eslint \"{src,test}/**/*.ts\"", + "test": "npm run lint && npm run build && nyc mocha --colors -r ts-node/register test/*.ts", + "build": "npm run compile-ts && gen-esm-wrapper . ./.esm-wrapper.mjs", + "prepack": "npm run build", + "compile-ts": "tsc -p tsconfig.json" + }, + "license": "Apache-2.0", + "devDependencies": { + "@types/chai": "^4.2.5", + "@types/mocha": "^8.0.3", + "@types/node": "^14.11.1", + "@typescript-eslint/eslint-plugin": "^4.2.0", + "@typescript-eslint/parser": "^4.2.0", + "chai": "^4.2.0", + "eslint": "^7.9.0", + "eslint-config-semistandard": "^15.0.1", + "eslint-config-standard": "^14.1.1", + "eslint-plugin-import": "^2.22.0", + "eslint-plugin-node": "^11.1.0", + "eslint-plugin-promise": "^4.2.1", + "eslint-plugin-standard": "^4.0.1", + "gen-esm-wrapper": "^1.1.3", + "mocha": "^8.1.3", + "nyc": "^15.1.0", + "ts-node": "^10.9.1", + "typescript": "^4.7.4" + }, + "dependencies": { + "@types/whatwg-url": "^11.0.2", + "whatwg-url": "^13.0.0" + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/LICENSE.md b/week-3/04-course-app-hard/node_modules/mongodb/LICENSE.md new file mode 100644 index 000000000..ad410e113 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/LICENSE.md @@ -0,0 +1,201 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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Take a look at our [upgrade guide here](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/CHANGES_6.0.0.md)!** + +## Quick Links + +| Site | Link | +| ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------- | +| Documentation | [www.mongodb.com/docs/drivers/node](https://www.mongodb.com/docs/drivers/node) | +| API Docs | [mongodb.github.io/node-mongodb-native](https://mongodb.github.io/node-mongodb-native) | +| `npm` package | [www.npmjs.com/package/mongodb](https://www.npmjs.com/package/mongodb) | +| MongoDB | [www.mongodb.com](https://www.mongodb.com) | +| MongoDB University | [learn.mongodb.com](https://learn.mongodb.com/catalog?labels=%5B%22Language%22%5D&values=%5B%22Node.js%22%5D) | +| MongoDB Developer Center | [www.mongodb.com/developer](https://www.mongodb.com/developer/languages/javascript/) | +| Stack Overflow | [stackoverflow.com](https://stackoverflow.com/search?q=%28%5Btypescript%5D+or+%5Bjavascript%5D+or+%5Bnode.js%5D%29+and+%5Bmongodb%5D) | +| Source Code | [github.com/mongodb/node-mongodb-native](https://github.com/mongodb/node-mongodb-native) | +| Upgrade to v6 | [etc/notes/CHANGES_6.0.0.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/CHANGES_6.0.0.md) | +| Contributing | [CONTRIBUTING.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/CONTRIBUTING.md) | +| Changelog | [HISTORY.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/HISTORY.md) | + +### Bugs / Feature Requests + +Think you’ve found a bug? Want to see a new feature in `node-mongodb-native`? Please open a +case in our issue management tool, JIRA: + +- Create an account and login [jira.mongodb.org](https://jira.mongodb.org). +- Navigate to the NODE project [jira.mongodb.org/browse/NODE](https://jira.mongodb.org/browse/NODE). +- Click **Create Issue** - Please provide as much information as possible about the issue type and how to reproduce it. + +Bug reports in JIRA for all driver projects (i.e. NODE, PYTHON, CSHARP, JAVA) and the +Core Server (i.e. SERVER) project are **public**. + +### Support / Feedback + +For issues with, questions about, or feedback for the Node.js driver, please look into our [support channels](https://www.mongodb.com/docs/manual/support). Please do not email any of the driver developers directly with issues or questions - you're more likely to get an answer on the [MongoDB Community Forums](https://community.mongodb.com/tags/c/drivers-odms-connectors/7/node-js-driver). + +### Change Log + +Change history can be found in [`HISTORY.md`](https://github.com/mongodb/node-mongodb-native/blob/HEAD/HISTORY.md). + +### Compatibility + +For server and runtime version compatibility matrices, please refer to the following links: + +- [MongoDB](https://www.mongodb.com/docs/drivers/node/current/compatibility/#mongodb-compatibility) +- [NodeJS](https://www.mongodb.com/docs/drivers/node/current/compatibility/#language-compatibility) + +#### Component Support Matrix + +The following table describes add-on component version compatibility for the Node.js driver. Only packages with versions in these supported ranges are stable when used in combination. + +| Component | `mongodb@3.x` | `mongodb@4.x` | `mongodb@5.x` | `mongodb@6.x` | +| ------------------------------------------------------------------------------------ | ------------------ | ------------------ | ------------------ | ------------- | +| [bson](https://www.npmjs.com/package/bson) | ^1.0.0 | ^4.0.0 | ^5.0.0 | ^6.0.0 | +| [bson-ext](https://www.npmjs.com/package/bson-ext) | ^1.0.0 \|\| ^2.0.0 | ^4.0.0 | N/A | N/A | +| [kerberos](https://www.npmjs.com/package/kerberos) | ^1.0.0 | ^1.0.0 \|\| ^2.0.0 | ^1.0.0 \|\| ^2.0.0 | ^2.0.1 | +| [mongodb-client-encryption](https://www.npmjs.com/package/mongodb-client-encryption) | ^1.0.0 | ^1.0.0 \|\| ^2.0.0 | ^2.3.0 | ^6.0.0 | +| [mongodb-legacy](https://www.npmjs.com/package/mongodb-legacy) | N/A | ^4.0.0 | ^5.0.0 | ^6.0.0 | +| [@mongodb-js/zstd](https://www.npmjs.com/package/@mongodb-js/zstd) | N/A | ^1.0.0 | ^1.0.0 | ^1.1.0 | + +#### Typescript Version + +We recommend using the latest version of typescript, however we currently ensure the driver's public types compile against `typescript@4.1.6`. +This is the lowest typescript version guaranteed to work with our driver: older versions may or may not work - use at your own risk. +Since typescript [does not restrict breaking changes to major versions](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes), we consider this support best effort. +If you run into any unexpected compiler failures against our supported TypeScript versions, please let us know by filing an issue on our [JIRA](https://jira.mongodb.org/browse/NODE). + +## Installation + +The recommended way to get started using the Node.js 5.x driver is by using the `npm` (Node Package Manager) to install the dependency in your project. + +After you've created your own project using `npm init`, you can run: + +```bash +npm install mongodb +# or ... +yarn add mongodb +``` + +This will download the MongoDB driver and add a dependency entry in your `package.json` file. + +If you are a Typescript user, you will need the Node.js type definitions to use the driver's definitions: + +```sh +npm install -D @types/node +``` + +## Driver Extensions + +The MongoDB driver can optionally be enhanced by the following feature packages: + +Maintained by MongoDB: + +- Zstd network compression - [@mongodb-js/zstd](https://github.com/mongodb-js/zstd) +- MongoDB field level and queryable encryption - [mongodb-client-encryption](https://github.com/mongodb/libmongocrypt#readme) +- GSSAPI / SSPI / Kerberos authentication - [kerberos](https://github.com/mongodb-js/kerberos) + +Some of these packages include native C++ extensions. +Consult the [trouble shooting guide here](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/native-extensions.md) if you run into compilation issues. + +Third party: + +- Snappy network compression - [snappy](https://github.com/Brooooooklyn/snappy) +- AWS authentication - [@aws-sdk/credential-providers](https://github.com/aws/aws-sdk-js-v3/tree/main/packages/credential-providers) + +## Quick Start + +This guide will show you how to set up a simple application using Node.js and MongoDB. Its scope is only how to set up the driver and perform the simple CRUD operations. For more in-depth coverage, see the [official documentation](https://www.mongodb.com/docs/drivers/node/). + +### Create the `package.json` file + +First, create a directory where your application will live. + +```bash +mkdir myProject +cd myProject +``` + +Enter the following command and answer the questions to create the initial structure for your new project: + +```bash +npm init -y +``` + +Next, install the driver as a dependency. + +```bash +npm install mongodb +``` + +### Start a MongoDB Server + +For complete MongoDB installation instructions, see [the manual](https://www.mongodb.com/docs/manual/installation/). + +1. Download the right MongoDB version from [MongoDB](https://www.mongodb.org/downloads) +2. Create a database directory (in this case under **/data**). +3. Install and start a `mongod` process. + +```bash +mongod --dbpath=/data +``` + +You should see the **mongod** process start up and print some status information. + +### Connect to MongoDB + +Create a new **app.js** file and add the following code to try out some basic CRUD +operations using the MongoDB driver. + +Add code to connect to the server and the database **myProject**: + +> **NOTE:** Resolving DNS Connection issues +> +> Node.js 18 changed the default DNS resolution ordering from always prioritizing IPv4 to the ordering +> returned by the DNS provider. In some environments, this can result in `localhost` resolving to +> an IPv6 address instead of IPv4 and a consequent failure to connect to the server. +> +> This can be resolved by: +> +> - specifying the IP address family using the MongoClient `family` option (`MongoClient(, { family: 4 } )`) +> - launching mongod or mongos with the ipv6 flag enabled ([--ipv6 mongod option documentation](https://www.mongodb.com/docs/manual/reference/program/mongod/#std-option-mongod.--ipv6)) +> - using a host of `127.0.0.1` in place of localhost +> - specifying the DNS resolution ordering with the `--dns-resolution-order` Node.js command line argument (e.g. `node --dns-resolution-order=ipv4first`) + +```js +const { MongoClient } = require('mongodb'); +// or as an es module: +// import { MongoClient } from 'mongodb' + +// Connection URL +const url = 'mongodb://localhost:27017'; +const client = new MongoClient(url); + +// Database Name +const dbName = 'myProject'; + +async function main() { + // Use connect method to connect to the server + await client.connect(); + console.log('Connected successfully to server'); + const db = client.db(dbName); + const collection = db.collection('documents'); + + // the following code examples can be pasted here... + + return 'done.'; +} + +main() + .then(console.log) + .catch(console.error) + .finally(() => client.close()); +``` + +Run your app from the command line with: + +```bash +node app.js +``` + +The application should print **Connected successfully to server** to the console. + +### Insert a Document + +Add to **app.js** the following function which uses the **insertMany** +method to add three documents to the **documents** collection. + +```js +const insertResult = await collection.insertMany([{ a: 1 }, { a: 2 }, { a: 3 }]); +console.log('Inserted documents =>', insertResult); +``` + +The **insertMany** command returns an object with information about the insert operations. + +### Find All Documents + +Add a query that returns all the documents. + +```js +const findResult = await collection.find({}).toArray(); +console.log('Found documents =>', findResult); +``` + +This query returns all the documents in the **documents** collection. +If you add this below the insertMany example, you'll see the documents you've inserted. + +### Find Documents with a Query Filter + +Add a query filter to find only documents which meet the query criteria. + +```js +const filteredDocs = await collection.find({ a: 3 }).toArray(); +console.log('Found documents filtered by { a: 3 } =>', filteredDocs); +``` + +Only the documents which match `'a' : 3` should be returned. + +### Update a document + +The following operation updates a document in the **documents** collection. + +```js +const updateResult = await collection.updateOne({ a: 3 }, { $set: { b: 1 } }); +console.log('Updated documents =>', updateResult); +``` + +The method updates the first document where the field **a** is equal to **3** by adding a new field **b** to the document set to **1**. `updateResult` contains information about whether there was a matching document to update or not. + +### Remove a document + +Remove the document where the field **a** is equal to **3**. + +```js +const deleteResult = await collection.deleteMany({ a: 3 }); +console.log('Deleted documents =>', deleteResult); +``` + +### Index a Collection + +[Indexes](https://www.mongodb.com/docs/manual/indexes/) can improve your application's +performance. The following function creates an index on the **a** field in the +**documents** collection. + +```js +const indexName = await collection.createIndex({ a: 1 }); +console.log('index name =', indexName); +``` + +For more detailed information, see the [indexing strategies page](https://www.mongodb.com/docs/manual/applications/indexes/). + +## Error Handling + +If you need to filter certain errors from our driver, we have a helpful tree of errors described in [etc/notes/errors.md](https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/errors.md). + +It is our recommendation to use `instanceof` checks on errors and to avoid relying on parsing `error.message` and `error.name` strings in your code. +We guarantee `instanceof` checks will pass according to semver guidelines, but errors may be sub-classed or their messages may change at any time, even patch releases, as we see fit to increase the helpfulness of the errors. + +Any new errors we add to the driver will directly extend an existing error class and no existing error will be moved to a different parent class outside of a major release. +This means `instanceof` will always be able to accurately capture the errors that our driver throws. + +```typescript +const client = new MongoClient(url); +await client.connect(); +const collection = client.db().collection('collection'); + +try { + await collection.insertOne({ _id: 1 }); + await collection.insertOne({ _id: 1 }); // duplicate key error +} catch (error) { + if (error instanceof MongoServerError) { + console.log(`Error worth logging: ${error}`); // special case for some reason + } + throw error; // still want to crash +} +``` + +## Nightly releases + +If you need to test with a change from the latest `main` branch, our `mongodb` npm package has nightly versions released under the `nightly` tag. + +```sh +npm install mongodb@nightly +``` + +Nightly versions are published regardless of testing outcome. +This means there could be semantic breakages or partially implemented features. +The nightly build is not suitable for production use. + +## Next Steps + +- [MongoDB Documentation](https://www.mongodb.com/docs/manual/) +- [MongoDB Node Driver Documentation](https://www.mongodb.com/docs/drivers/node/) +- [Read about Schemas](https://www.mongodb.com/docs/manual/core/data-modeling-introduction/) +- [Star us on GitHub](https://github.com/mongodb/node-mongodb-native) + +## License + +[Apache 2.0](LICENSE.md) + +© 2012-present MongoDB [Contributors](https://github.com/mongodb/node-mongodb-native/blob/HEAD/CONTRIBUTORS.md) \ +© 2009-2012 Christian Amor Kvalheim diff --git a/week-3/04-course-app-hard/node_modules/mongodb/etc/prepare.js b/week-3/04-course-app-hard/node_modules/mongodb/etc/prepare.js new file mode 100644 index 000000000..2039d0b33 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/etc/prepare.js @@ -0,0 +1,12 @@ +#! /usr/bin/env node +var cp = require('child_process'); +var fs = require('fs'); +var os = require('os'); + +if (fs.existsSync('src')) { + cp.spawn('npm', ['run', 'build:dts'], { stdio: 'inherit', shell: os.platform() === 'win32' }); +} else { + if (!fs.existsSync('lib')) { + console.warn('MongoDB: No compiled javascript present, the driver is not installed correctly.'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/admin.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/admin.js new file mode 100644 index 000000000..cb5981009 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/admin.js @@ -0,0 +1,134 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Admin = void 0; +const bson_1 = require("./bson"); +const execute_operation_1 = require("./operations/execute_operation"); +const list_databases_1 = require("./operations/list_databases"); +const remove_user_1 = require("./operations/remove_user"); +const run_command_1 = require("./operations/run_command"); +const validate_collection_1 = require("./operations/validate_collection"); +/** + * The **Admin** class is an internal class that allows convenient access to + * the admin functionality and commands for MongoDB. + * + * **ADMIN Cannot directly be instantiated** + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const admin = client.db().admin(); + * const dbInfo = await admin.listDatabases(); + * for (const db of dbInfo.databases) { + * console.log(db.name); + * } + * ``` + */ +class Admin { + /** + * Create a new Admin instance + * @internal + */ + constructor(db) { + this.s = { db }; + } + /** + * Execute a command + * + * The driver will ensure the following fields are attached to the command sent to the server: + * - `lsid` - sourced from an implicit session or options.session + * - `$readPreference` - defaults to primary or can be configured by options.readPreference + * - `$db` - sourced from the name of this database + * + * If the client has a serverApi setting: + * - `apiVersion` + * - `apiStrict` + * - `apiDeprecationErrors` + * + * When in a transaction: + * - `readConcern` - sourced from readConcern set on the TransactionOptions + * - `writeConcern` - sourced from writeConcern set on the TransactionOptions + * + * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value. + * + * @param command - The command to execute + * @param options - Optional settings for the command + */ + async command(command, options) { + return await (0, execute_operation_1.executeOperation)(this.s.db.client, new run_command_1.RunAdminCommandOperation(command, { + ...(0, bson_1.resolveBSONOptions)(options), + session: options?.session, + readPreference: options?.readPreference + })); + } + /** + * Retrieve the server build information + * + * @param options - Optional settings for the command + */ + async buildInfo(options) { + return await this.command({ buildinfo: 1 }, options); + } + /** + * Retrieve the server build information + * + * @param options - Optional settings for the command + */ + async serverInfo(options) { + return await this.command({ buildinfo: 1 }, options); + } + /** + * Retrieve this db's server status. + * + * @param options - Optional settings for the command + */ + async serverStatus(options) { + return await this.command({ serverStatus: 1 }, options); + } + /** + * Ping the MongoDB server and retrieve results + * + * @param options - Optional settings for the command + */ + async ping(options) { + return await this.command({ ping: 1 }, options); + } + /** + * Remove a user from a database + * + * @param username - The username to remove + * @param options - Optional settings for the command + */ + async removeUser(username, options) { + return await (0, execute_operation_1.executeOperation)(this.s.db.client, new remove_user_1.RemoveUserOperation(this.s.db, username, { dbName: 'admin', ...options })); + } + /** + * Validate an existing collection + * + * @param collectionName - The name of the collection to validate. + * @param options - Optional settings for the command + */ + async validateCollection(collectionName, options = {}) { + return await (0, execute_operation_1.executeOperation)(this.s.db.client, new validate_collection_1.ValidateCollectionOperation(this, collectionName, options)); + } + /** + * List the available databases + * + * @param options - Optional settings for the command + */ + async listDatabases(options) { + return await (0, execute_operation_1.executeOperation)(this.s.db.client, new list_databases_1.ListDatabasesOperation(this.s.db, options)); + } + /** + * Get ReplicaSet status + * + * @param options - Optional settings for the command + */ + async replSetGetStatus(options) { + return await this.command({ replSetGetStatus: 1 }, options); + } +} +exports.Admin = Admin; +//# sourceMappingURL=admin.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/admin.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/admin.js.map new file mode 100644 index 000000000..965caf9ab --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/admin.js.map @@ -0,0 +1 @@ +{"version":3,"file":"admin.js","sourceRoot":"","sources":["../src/admin.ts"],"names":[],"mappings":";;;AAAA,iCAA2D;AAG3D,sEAAkE;AAClE,gEAIqC;AACrC,0DAAuF;AACvF,0DAA4F;AAC5F,0EAG0C;AAO1C;;;;;;;;;;;;;;;;;;GAkBG;AACH,MAAa,KAAK;IAIhB;;;OAGG;IACH,YAAY,EAAM;QAChB,IAAI,CAAC,CAAC,GAAG,EAAE,EAAE,EAAE,CAAC;IAClB,CAAC;IAED;;;;;;;;;;;;;;;;;;;;;OAqBG;IACH,KAAK,CAAC,OAAO,CAAC,OAAiB,EAAE,OAA2B;QAC1D,OAAO,MAAM,IAAA,oCAAgB,EAC3B,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,MAAM,EAChB,IAAI,sCAAwB,CAAC,OAAO,EAAE;YACpC,GAAG,IAAA,yBAAkB,EAAC,OAAO,CAAC;YAC9B,OAAO,EAAE,OAAO,EAAE,OAAO;YACzB,cAAc,EAAE,OAAO,EAAE,cAAc;SACxC,CAAC,CACH,CAAC;IACJ,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,SAAS,CAAC,OAAiC;QAC/C,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,EAAE,SAAS,EAAE,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;IACvD,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,UAAU,CAAC,OAAiC;QAChD,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,EAAE,SAAS,EAAE,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;IACvD,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,YAAY,CAAC,OAAiC;QAClD,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,EAAE,YAAY,EAAE,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;IAC1D,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,IAAI,CAAC,OAAiC;QAC1C,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,EAAE,IAAI,EAAE,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;IAClD,CAAC;IAED;;;;;OAKG;IACH,KAAK,CAAC,UAAU,CAAC,QAAgB,EAAE,OAA2B;QAC5D,OAAO,MAAM,IAAA,oCAAgB,EAC3B,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,MAAM,EAChB,IAAI,iCAAmB,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,EAAE,QAAQ,EAAE,EAAE,MAAM,EAAE,OAAO,EAAE,GAAG,OAAO,EAAE,CAAC,CAC9E,CAAC;IACJ,CAAC;IAED;;;;;OAKG;IACH,KAAK,CAAC,kBAAkB,CACtB,cAAsB,EACtB,UAAqC,EAAE;QAEvC,OAAO,MAAM,IAAA,oCAAgB,EAC3B,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,MAAM,EAChB,IAAI,iDAA2B,CAAC,IAAI,EAAE,cAAc,EAAE,OAAO,CAAC,CAC/D,CAAC;IACJ,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,aAAa,CAAC,OAA8B;QAChD,OAAO,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,MAAM,EAAE,IAAI,uCAAsB,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC,CAAC;IAClG,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,gBAAgB,CAAC,OAAiC;QACtD,OAAO,MAAM,IAAI,CAAC,OAAO,CAAC,EAAE,gBAAgB,EAAE,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;IAC9D,CAAC;CACF;AA/HD,sBA+HC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bson.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/bson.js new file mode 100644 index 000000000..6d5e781f7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bson.js @@ -0,0 +1,74 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.resolveBSONOptions = exports.pluckBSONSerializeOptions = exports.toUTF8 = exports.getBigInt64LE = exports.getFloat64LE = exports.getInt32LE = exports.parseToElementsToArray = exports.UUID = exports.Timestamp = exports.serialize = exports.ObjectId = exports.MinKey = exports.MaxKey = exports.Long = exports.Int32 = exports.EJSON = exports.Double = exports.deserialize = exports.Decimal128 = exports.DBRef = exports.Code = exports.calculateObjectSize = exports.BSONType = exports.BSONSymbol = exports.BSONRegExp = exports.BSONError = exports.BSON = exports.Binary = void 0; +const bson_1 = require("bson"); +var bson_2 = require("bson"); +Object.defineProperty(exports, "Binary", { enumerable: true, get: function () { return bson_2.Binary; } }); +Object.defineProperty(exports, "BSON", { enumerable: true, get: function () { return bson_2.BSON; } }); +Object.defineProperty(exports, "BSONError", { enumerable: true, get: function () { return bson_2.BSONError; } }); +Object.defineProperty(exports, "BSONRegExp", { enumerable: true, get: function () { return bson_2.BSONRegExp; } }); +Object.defineProperty(exports, "BSONSymbol", { enumerable: true, get: function () { return bson_2.BSONSymbol; } }); +Object.defineProperty(exports, "BSONType", { enumerable: true, get: function () { return bson_2.BSONType; } }); +Object.defineProperty(exports, "calculateObjectSize", { enumerable: true, get: function () { return bson_2.calculateObjectSize; } }); +Object.defineProperty(exports, "Code", { enumerable: true, get: function () { return bson_2.Code; } }); +Object.defineProperty(exports, "DBRef", { enumerable: true, get: function () { return bson_2.DBRef; } }); +Object.defineProperty(exports, "Decimal128", { enumerable: true, get: function () { return bson_2.Decimal128; } }); +Object.defineProperty(exports, "deserialize", { enumerable: true, get: function () { return bson_2.deserialize; } }); +Object.defineProperty(exports, "Double", { enumerable: true, get: function () { return bson_2.Double; } }); +Object.defineProperty(exports, "EJSON", { enumerable: true, get: function () { return bson_2.EJSON; } }); +Object.defineProperty(exports, "Int32", { enumerable: true, get: function () { return bson_2.Int32; } }); +Object.defineProperty(exports, "Long", { enumerable: true, get: function () { return bson_2.Long; } }); +Object.defineProperty(exports, "MaxKey", { enumerable: true, get: function () { return bson_2.MaxKey; } }); +Object.defineProperty(exports, "MinKey", { enumerable: true, get: function () { return bson_2.MinKey; } }); +Object.defineProperty(exports, "ObjectId", { enumerable: true, get: function () { return bson_2.ObjectId; } }); +Object.defineProperty(exports, "serialize", { enumerable: true, get: function () { return bson_2.serialize; } }); +Object.defineProperty(exports, "Timestamp", { enumerable: true, get: function () { return bson_2.Timestamp; } }); +Object.defineProperty(exports, "UUID", { enumerable: true, get: function () { return bson_2.UUID; } }); +function parseToElementsToArray(bytes, offset) { + const res = bson_1.BSON.onDemand.parseToElements(bytes, offset); + return Array.isArray(res) ? res : [...res]; +} +exports.parseToElementsToArray = parseToElementsToArray; +exports.getInt32LE = bson_1.BSON.onDemand.NumberUtils.getInt32LE; +exports.getFloat64LE = bson_1.BSON.onDemand.NumberUtils.getFloat64LE; +exports.getBigInt64LE = bson_1.BSON.onDemand.NumberUtils.getBigInt64LE; +exports.toUTF8 = bson_1.BSON.onDemand.ByteUtils.toUTF8; +function pluckBSONSerializeOptions(options) { + const { fieldsAsRaw, useBigInt64, promoteValues, promoteBuffers, promoteLongs, serializeFunctions, ignoreUndefined, bsonRegExp, raw, enableUtf8Validation } = options; + return { + fieldsAsRaw, + useBigInt64, + promoteValues, + promoteBuffers, + promoteLongs, + serializeFunctions, + ignoreUndefined, + bsonRegExp, + raw, + enableUtf8Validation + }; +} +exports.pluckBSONSerializeOptions = pluckBSONSerializeOptions; +/** + * Merge the given BSONSerializeOptions, preferring options over the parent's options, and + * substituting defaults for values not set. + * + * @internal + */ +function resolveBSONOptions(options, parent) { + const parentOptions = parent?.bsonOptions; + return { + raw: options?.raw ?? parentOptions?.raw ?? false, + useBigInt64: options?.useBigInt64 ?? parentOptions?.useBigInt64 ?? false, + promoteLongs: options?.promoteLongs ?? parentOptions?.promoteLongs ?? true, + promoteValues: options?.promoteValues ?? parentOptions?.promoteValues ?? true, + promoteBuffers: options?.promoteBuffers ?? parentOptions?.promoteBuffers ?? false, + ignoreUndefined: options?.ignoreUndefined ?? parentOptions?.ignoreUndefined ?? false, + bsonRegExp: options?.bsonRegExp ?? parentOptions?.bsonRegExp ?? false, + serializeFunctions: options?.serializeFunctions ?? parentOptions?.serializeFunctions ?? false, + fieldsAsRaw: options?.fieldsAsRaw ?? parentOptions?.fieldsAsRaw ?? {}, + enableUtf8Validation: options?.enableUtf8Validation ?? parentOptions?.enableUtf8Validation ?? true + }; +} +exports.resolveBSONOptions = resolveBSONOptions; +//# sourceMappingURL=bson.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bson.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/bson.js.map new file mode 100644 index 000000000..c83d03423 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bson.js.map @@ -0,0 +1 @@ +{"version":3,"file":"bson.js","sourceRoot":"","sources":["../src/bson.ts"],"names":[],"mappings":";;;AACA,+BAA4B;AAE5B,6BAwBc;AAvBZ,8FAAA,MAAM,OAAA;AACN,4FAAA,IAAI,OAAA;AACJ,iGAAA,SAAS,OAAA;AACT,kGAAA,UAAU,OAAA;AACV,kGAAA,UAAU,OAAA;AACV,gGAAA,QAAQ,OAAA;AACR,2GAAA,mBAAmB,OAAA;AACnB,4FAAA,IAAI,OAAA;AACJ,6FAAA,KAAK,OAAA;AACL,kGAAA,UAAU,OAAA;AACV,mGAAA,WAAW,OAAA;AAEX,8FAAA,MAAM,OAAA;AACN,6FAAA,KAAK,OAAA;AAEL,6FAAA,KAAK,OAAA;AACL,4FAAA,IAAI,OAAA;AACJ,8FAAA,MAAM,OAAA;AACN,8FAAA,MAAM,OAAA;AACN,gGAAA,QAAQ,OAAA;AACR,iGAAA,SAAS,OAAA;AACT,iGAAA,SAAS,OAAA;AACT,4FAAA,IAAI,OAAA;AAKN,SAAgB,sBAAsB,CAAC,KAAiB,EAAE,MAAe;IACvE,MAAM,GAAG,GAAG,WAAI,CAAC,QAAQ,CAAC,eAAe,CAAC,KAAK,EAAE,MAAM,CAAC,CAAC;IACzD,OAAO,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC;AAC7C,CAAC;AAHD,wDAGC;AAEY,QAAA,UAAU,GAAG,WAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,UAAU,CAAC;AAClD,QAAA,YAAY,GAAG,WAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,YAAY,CAAC;AACtD,QAAA,aAAa,GAAG,WAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,aAAa,CAAC;AACxD,QAAA,MAAM,GAAG,WAAI,CAAC,QAAQ,CAAC,SAAS,CAAC,MAAM,CAAC;AA2CrD,SAAgB,yBAAyB,CAAC,OAA6B;IACrE,MAAM,EACJ,WAAW,EACX,WAAW,EACX,aAAa,EACb,cAAc,EACd,YAAY,EACZ,kBAAkB,EAClB,eAAe,EACf,UAAU,EACV,GAAG,EACH,oBAAoB,EACrB,GAAG,OAAO,CAAC;IACZ,OAAO;QACL,WAAW;QACX,WAAW;QACX,aAAa;QACb,cAAc;QACd,YAAY;QACZ,kBAAkB;QAClB,eAAe;QACf,UAAU;QACV,GAAG;QACH,oBAAoB;KACrB,CAAC;AACJ,CAAC;AAzBD,8DAyBC;AAED;;;;;GAKG;AACH,SAAgB,kBAAkB,CAChC,OAA8B,EAC9B,MAA+C;IAE/C,MAAM,aAAa,GAAG,MAAM,EAAE,WAAW,CAAC;IAC1C,OAAO;QACL,GAAG,EAAE,OAAO,EAAE,GAAG,IAAI,aAAa,EAAE,GAAG,IAAI,KAAK;QAChD,WAAW,EAAE,OAAO,EAAE,WAAW,IAAI,aAAa,EAAE,WAAW,IAAI,KAAK;QACxE,YAAY,EAAE,OAAO,EAAE,YAAY,IAAI,aAAa,EAAE,YAAY,IAAI,IAAI;QAC1E,aAAa,EAAE,OAAO,EAAE,aAAa,IAAI,aAAa,EAAE,aAAa,IAAI,IAAI;QAC7E,cAAc,EAAE,OAAO,EAAE,cAAc,IAAI,aAAa,EAAE,cAAc,IAAI,KAAK;QACjF,eAAe,EAAE,OAAO,EAAE,eAAe,IAAI,aAAa,EAAE,eAAe,IAAI,KAAK;QACpF,UAAU,EAAE,OAAO,EAAE,UAAU,IAAI,aAAa,EAAE,UAAU,IAAI,KAAK;QACrE,kBAAkB,EAAE,OAAO,EAAE,kBAAkB,IAAI,aAAa,EAAE,kBAAkB,IAAI,KAAK;QAC7F,WAAW,EAAE,OAAO,EAAE,WAAW,IAAI,aAAa,EAAE,WAAW,IAAI,EAAE;QACrE,oBAAoB,EAClB,OAAO,EAAE,oBAAoB,IAAI,aAAa,EAAE,oBAAoB,IAAI,IAAI;KAC/E,CAAC;AACJ,CAAC;AAlBD,gDAkBC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/common.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/common.js new file mode 100644 index 000000000..082a6ab13 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/common.js @@ -0,0 +1,868 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.BulkOperationBase = exports.BulkWriteShimOperation = exports.FindOperators = exports.MongoBulkWriteError = exports.mergeBatchResults = exports.WriteError = exports.WriteConcernError = exports.BulkWriteResult = exports.Batch = exports.BatchType = void 0; +const util_1 = require("util"); +const bson_1 = require("../bson"); +const error_1 = require("../error"); +const delete_1 = require("../operations/delete"); +const execute_operation_1 = require("../operations/execute_operation"); +const insert_1 = require("../operations/insert"); +const operation_1 = require("../operations/operation"); +const update_1 = require("../operations/update"); +const utils_1 = require("../utils"); +const utils_2 = require("../utils"); +const write_concern_1 = require("../write_concern"); +/** @internal */ +const kServerError = Symbol('serverError'); +/** @public */ +exports.BatchType = Object.freeze({ + INSERT: 1, + UPDATE: 2, + DELETE: 3 +}); +/** + * Keeps the state of a unordered batch so we can rewrite the results + * correctly after command execution + * + * @public + */ +class Batch { + constructor(batchType, originalZeroIndex) { + this.originalZeroIndex = originalZeroIndex; + this.currentIndex = 0; + this.originalIndexes = []; + this.batchType = batchType; + this.operations = []; + this.size = 0; + this.sizeBytes = 0; + } +} +exports.Batch = Batch; +/** + * @public + * The result of a bulk write. + */ +class BulkWriteResult { + static generateIdMap(ids) { + const idMap = {}; + for (const doc of ids) { + idMap[doc.index] = doc._id; + } + return idMap; + } + /** + * Create a new BulkWriteResult instance + * @internal + */ + constructor(bulkResult, isOrdered) { + this.result = bulkResult; + this.insertedCount = this.result.nInserted ?? 0; + this.matchedCount = this.result.nMatched ?? 0; + this.modifiedCount = this.result.nModified ?? 0; + this.deletedCount = this.result.nRemoved ?? 0; + this.upsertedCount = this.result.upserted.length ?? 0; + this.upsertedIds = BulkWriteResult.generateIdMap(this.result.upserted); + this.insertedIds = BulkWriteResult.generateIdMap(this.getSuccessfullyInsertedIds(bulkResult, isOrdered)); + Object.defineProperty(this, 'result', { value: this.result, enumerable: false }); + } + /** Evaluates to true if the bulk operation correctly executes */ + get ok() { + return this.result.ok; + } + /** + * Returns document_ids that were actually inserted + * @internal + */ + getSuccessfullyInsertedIds(bulkResult, isOrdered) { + if (bulkResult.writeErrors.length === 0) + return bulkResult.insertedIds; + if (isOrdered) { + return bulkResult.insertedIds.slice(0, bulkResult.writeErrors[0].index); + } + return bulkResult.insertedIds.filter(({ index }) => !bulkResult.writeErrors.some(writeError => index === writeError.index)); + } + /** Returns the upserted id at the given index */ + getUpsertedIdAt(index) { + return this.result.upserted[index]; + } + /** Returns raw internal result */ + getRawResponse() { + return this.result; + } + /** Returns true if the bulk operation contains a write error */ + hasWriteErrors() { + return this.result.writeErrors.length > 0; + } + /** Returns the number of write errors off the bulk operation */ + getWriteErrorCount() { + return this.result.writeErrors.length; + } + /** Returns a specific write error object */ + getWriteErrorAt(index) { + return index < this.result.writeErrors.length ? this.result.writeErrors[index] : undefined; + } + /** Retrieve all write errors */ + getWriteErrors() { + return this.result.writeErrors; + } + /** Retrieve the write concern error if one exists */ + getWriteConcernError() { + if (this.result.writeConcernErrors.length === 0) { + return; + } + else if (this.result.writeConcernErrors.length === 1) { + // Return the error + return this.result.writeConcernErrors[0]; + } + else { + // Combine the errors + let errmsg = ''; + for (let i = 0; i < this.result.writeConcernErrors.length; i++) { + const err = this.result.writeConcernErrors[i]; + errmsg = errmsg + err.errmsg; + // TODO: Something better + if (i === 0) + errmsg = errmsg + ' and '; + } + return new WriteConcernError({ errmsg, code: error_1.MONGODB_ERROR_CODES.WriteConcernFailed }); + } + } + toString() { + return `BulkWriteResult(${this.result})`; + } + isOk() { + return this.result.ok === 1; + } +} +exports.BulkWriteResult = BulkWriteResult; +/** + * An error representing a failure by the server to apply the requested write concern to the bulk operation. + * @public + * @category Error + */ +class WriteConcernError { + constructor(error) { + this[kServerError] = error; + } + /** Write concern error code. */ + get code() { + return this[kServerError].code; + } + /** Write concern error message. */ + get errmsg() { + return this[kServerError].errmsg; + } + /** Write concern error info. */ + get errInfo() { + return this[kServerError].errInfo; + } + toJSON() { + return this[kServerError]; + } + toString() { + return `WriteConcernError(${this.errmsg})`; + } +} +exports.WriteConcernError = WriteConcernError; +/** + * An error that occurred during a BulkWrite on the server. + * @public + * @category Error + */ +class WriteError { + constructor(err) { + this.err = err; + } + /** WriteError code. */ + get code() { + return this.err.code; + } + /** WriteError original bulk operation index. */ + get index() { + return this.err.index; + } + /** WriteError message. */ + get errmsg() { + return this.err.errmsg; + } + /** WriteError details. */ + get errInfo() { + return this.err.errInfo; + } + /** Returns the underlying operation that caused the error */ + getOperation() { + return this.err.op; + } + toJSON() { + return { code: this.err.code, index: this.err.index, errmsg: this.err.errmsg, op: this.err.op }; + } + toString() { + return `WriteError(${JSON.stringify(this.toJSON())})`; + } +} +exports.WriteError = WriteError; +/** Merges results into shared data structure */ +function mergeBatchResults(batch, bulkResult, err, result) { + // If we have an error set the result to be the err object + if (err) { + result = err; + } + else if (result && result.result) { + result = result.result; + } + if (result == null) { + return; + } + // Do we have a top level error stop processing and return + if (result.ok === 0 && bulkResult.ok === 1) { + bulkResult.ok = 0; + const writeError = { + index: 0, + code: result.code || 0, + errmsg: result.message, + errInfo: result.errInfo, + op: batch.operations[0] + }; + bulkResult.writeErrors.push(new WriteError(writeError)); + return; + } + else if (result.ok === 0 && bulkResult.ok === 0) { + return; + } + // If we have an insert Batch type + if (isInsertBatch(batch) && result.n) { + bulkResult.nInserted = bulkResult.nInserted + result.n; + } + // If we have an insert Batch type + if (isDeleteBatch(batch) && result.n) { + bulkResult.nRemoved = bulkResult.nRemoved + result.n; + } + let nUpserted = 0; + // We have an array of upserted values, we need to rewrite the indexes + if (Array.isArray(result.upserted)) { + nUpserted = result.upserted.length; + for (let i = 0; i < result.upserted.length; i++) { + bulkResult.upserted.push({ + index: result.upserted[i].index + batch.originalZeroIndex, + _id: result.upserted[i]._id + }); + } + } + else if (result.upserted) { + nUpserted = 1; + bulkResult.upserted.push({ + index: batch.originalZeroIndex, + _id: result.upserted + }); + } + // If we have an update Batch type + if (isUpdateBatch(batch) && result.n) { + const nModified = result.nModified; + bulkResult.nUpserted = bulkResult.nUpserted + nUpserted; + bulkResult.nMatched = bulkResult.nMatched + (result.n - nUpserted); + if (typeof nModified === 'number') { + bulkResult.nModified = bulkResult.nModified + nModified; + } + else { + bulkResult.nModified = 0; + } + } + if (Array.isArray(result.writeErrors)) { + for (let i = 0; i < result.writeErrors.length; i++) { + const writeError = { + index: batch.originalIndexes[result.writeErrors[i].index], + code: result.writeErrors[i].code, + errmsg: result.writeErrors[i].errmsg, + errInfo: result.writeErrors[i].errInfo, + op: batch.operations[result.writeErrors[i].index] + }; + bulkResult.writeErrors.push(new WriteError(writeError)); + } + } + if (result.writeConcernError) { + bulkResult.writeConcernErrors.push(new WriteConcernError(result.writeConcernError)); + } +} +exports.mergeBatchResults = mergeBatchResults; +function executeCommands(bulkOperation, options, callback) { + if (bulkOperation.s.batches.length === 0) { + return callback(undefined, new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered)); + } + const batch = bulkOperation.s.batches.shift(); + function resultHandler(err, result) { + // Error is a driver related error not a bulk op error, return early + if (err && 'message' in err && !(err instanceof error_1.MongoWriteConcernError)) { + return callback(new MongoBulkWriteError(err, new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered))); + } + if (err instanceof error_1.MongoWriteConcernError) { + return handleMongoWriteConcernError(batch, bulkOperation.s.bulkResult, bulkOperation.isOrdered, err, callback); + } + // Merge the results together + mergeBatchResults(batch, bulkOperation.s.bulkResult, err, result); + const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered); + if (bulkOperation.handleWriteError(callback, writeResult)) + return; + // Execute the next command in line + executeCommands(bulkOperation, options, callback); + } + const finalOptions = (0, utils_2.resolveOptions)(bulkOperation, { + ...options, + ordered: bulkOperation.isOrdered + }); + if (finalOptions.bypassDocumentValidation !== true) { + delete finalOptions.bypassDocumentValidation; + } + // Set an operationIf if provided + if (bulkOperation.operationId) { + resultHandler.operationId = bulkOperation.operationId; + } + // Is the bypassDocumentValidation options specific + if (bulkOperation.s.bypassDocumentValidation === true) { + finalOptions.bypassDocumentValidation = true; + } + // Is the checkKeys option disabled + if (bulkOperation.s.checkKeys === false) { + finalOptions.checkKeys = false; + } + if (finalOptions.retryWrites) { + if (isUpdateBatch(batch)) { + finalOptions.retryWrites = finalOptions.retryWrites && !batch.operations.some(op => op.multi); + } + if (isDeleteBatch(batch)) { + finalOptions.retryWrites = + finalOptions.retryWrites && !batch.operations.some(op => op.limit === 0); + } + } + try { + const operation = isInsertBatch(batch) + ? new insert_1.InsertOperation(bulkOperation.s.namespace, batch.operations, finalOptions) + : isUpdateBatch(batch) + ? new update_1.UpdateOperation(bulkOperation.s.namespace, batch.operations, finalOptions) + : isDeleteBatch(batch) + ? new delete_1.DeleteOperation(bulkOperation.s.namespace, batch.operations, finalOptions) + : null; + if (operation != null) { + // eslint-disable-next-line github/no-then + (0, execute_operation_1.executeOperation)(bulkOperation.s.collection.client, operation).then(result => resultHandler(undefined, result), error => resultHandler(error)); + } + } + catch (err) { + // Force top level error + err.ok = 0; + // Merge top level error and return + mergeBatchResults(batch, bulkOperation.s.bulkResult, err, undefined); + callback(); + } +} +function handleMongoWriteConcernError(batch, bulkResult, isOrdered, err, callback) { + mergeBatchResults(batch, bulkResult, undefined, err.result); + callback(new MongoBulkWriteError({ + message: err.result?.writeConcernError.errmsg, + code: err.result?.writeConcernError.result + }, new BulkWriteResult(bulkResult, isOrdered))); +} +/** + * An error indicating an unsuccessful Bulk Write + * @public + * @category Error + */ +class MongoBulkWriteError extends error_1.MongoServerError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(error, result) { + super(error); + this.writeErrors = []; + if (error instanceof WriteConcernError) + this.err = error; + else if (!(error instanceof Error)) { + this.message = error.message; + this.code = error.code; + this.writeErrors = error.writeErrors ?? []; + } + this.result = result; + Object.assign(this, error); + } + get name() { + return 'MongoBulkWriteError'; + } + /** Number of documents inserted. */ + get insertedCount() { + return this.result.insertedCount; + } + /** Number of documents matched for update. */ + get matchedCount() { + return this.result.matchedCount; + } + /** Number of documents modified. */ + get modifiedCount() { + return this.result.modifiedCount; + } + /** Number of documents deleted. */ + get deletedCount() { + return this.result.deletedCount; + } + /** Number of documents upserted. */ + get upsertedCount() { + return this.result.upsertedCount; + } + /** Inserted document generated Id's, hash key is the index of the originating operation */ + get insertedIds() { + return this.result.insertedIds; + } + /** Upserted document generated Id's, hash key is the index of the originating operation */ + get upsertedIds() { + return this.result.upsertedIds; + } +} +exports.MongoBulkWriteError = MongoBulkWriteError; +/** + * A builder object that is returned from {@link BulkOperationBase#find}. + * Is used to build a write operation that involves a query filter. + * + * @public + */ +class FindOperators { + /** + * Creates a new FindOperators object. + * @internal + */ + constructor(bulkOperation) { + this.bulkOperation = bulkOperation; + } + /** Add a multiple update operation to the bulk operation */ + update(updateDocument) { + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList(exports.BatchType.UPDATE, (0, update_1.makeUpdateStatement)(currentOp.selector, updateDocument, { + ...currentOp, + multi: true + })); + } + /** Add a single update operation to the bulk operation */ + updateOne(updateDocument) { + if (!(0, utils_2.hasAtomicOperators)(updateDocument)) { + throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators'); + } + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList(exports.BatchType.UPDATE, (0, update_1.makeUpdateStatement)(currentOp.selector, updateDocument, { ...currentOp, multi: false })); + } + /** Add a replace one operation to the bulk operation */ + replaceOne(replacement) { + if ((0, utils_2.hasAtomicOperators)(replacement)) { + throw new error_1.MongoInvalidArgumentError('Replacement document must not use atomic operators'); + } + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList(exports.BatchType.UPDATE, (0, update_1.makeUpdateStatement)(currentOp.selector, replacement, { ...currentOp, multi: false })); + } + /** Add a delete one operation to the bulk operation */ + deleteOne() { + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(currentOp.selector, { ...currentOp, limit: 1 })); + } + /** Add a delete many operation to the bulk operation */ + delete() { + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(currentOp.selector, { ...currentOp, limit: 0 })); + } + /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */ + upsert() { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + this.bulkOperation.s.currentOp.upsert = true; + return this; + } + /** Specifies the collation for the query condition. */ + collation(collation) { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + this.bulkOperation.s.currentOp.collation = collation; + return this; + } + /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */ + arrayFilters(arrayFilters) { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + this.bulkOperation.s.currentOp.arrayFilters = arrayFilters; + return this; + } + /** Specifies hint for the bulk operation. */ + hint(hint) { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + this.bulkOperation.s.currentOp.hint = hint; + return this; + } +} +exports.FindOperators = FindOperators; +const executeCommandsAsync = (0, util_1.promisify)(executeCommands); +/** + * TODO(NODE-4063) + * BulkWrites merge complexity is implemented in executeCommands + * This provides a vehicle to treat bulkOperations like any other operation (hence "shim") + * We would like this logic to simply live inside the BulkWriteOperation class + * @internal + */ +class BulkWriteShimOperation extends operation_1.AbstractOperation { + constructor(bulkOperation, options) { + super(options); + this.bulkOperation = bulkOperation; + } + get commandName() { + return 'bulkWrite'; + } + execute(_server, session) { + if (this.options.session == null) { + // An implicit session could have been created by 'executeOperation' + // So if we stick it on finalOptions here, each bulk operation + // will use this same session, it'll be passed in the same way + // an explicit session would be + this.options.session = session; + } + return executeCommandsAsync(this.bulkOperation, this.options); + } +} +exports.BulkWriteShimOperation = BulkWriteShimOperation; +/** @public */ +class BulkOperationBase { + /** + * Create a new OrderedBulkOperation or UnorderedBulkOperation instance + * @internal + */ + constructor(collection, options, isOrdered) { + this.collection = collection; + // determine whether bulkOperation is ordered or unordered + this.isOrdered = isOrdered; + const topology = (0, utils_2.getTopology)(collection); + options = options == null ? {} : options; + // TODO Bring from driver information in hello + // Get the namespace for the write operations + const namespace = collection.s.namespace; + // Used to mark operation as executed + const executed = false; + // Current item + const currentOp = undefined; + // Set max byte size + const hello = topology.lastHello(); + // If we have autoEncryption on, batch-splitting must be done on 2mb chunks, but single documents + // over 2mb are still allowed + const usingAutoEncryption = !!(topology.s.options && topology.s.options.autoEncrypter); + const maxBsonObjectSize = hello && hello.maxBsonObjectSize ? hello.maxBsonObjectSize : 1024 * 1024 * 16; + const maxBatchSizeBytes = usingAutoEncryption ? 1024 * 1024 * 2 : maxBsonObjectSize; + const maxWriteBatchSize = hello && hello.maxWriteBatchSize ? hello.maxWriteBatchSize : 1000; + // Calculates the largest possible size of an Array key, represented as a BSON string + // element. This calculation: + // 1 byte for BSON type + // # of bytes = length of (string representation of (maxWriteBatchSize - 1)) + // + 1 bytes for null terminator + const maxKeySize = (maxWriteBatchSize - 1).toString(10).length + 2; + // Final options for retryable writes + let finalOptions = Object.assign({}, options); + finalOptions = (0, utils_2.applyRetryableWrites)(finalOptions, collection.s.db); + // Final results + const bulkResult = { + ok: 1, + writeErrors: [], + writeConcernErrors: [], + insertedIds: [], + nInserted: 0, + nUpserted: 0, + nMatched: 0, + nModified: 0, + nRemoved: 0, + upserted: [] + }; + // Internal state + this.s = { + // Final result + bulkResult, + // Current batch state + currentBatch: undefined, + currentIndex: 0, + // ordered specific + currentBatchSize: 0, + currentBatchSizeBytes: 0, + // unordered specific + currentInsertBatch: undefined, + currentUpdateBatch: undefined, + currentRemoveBatch: undefined, + batches: [], + // Write concern + writeConcern: write_concern_1.WriteConcern.fromOptions(options), + // Max batch size options + maxBsonObjectSize, + maxBatchSizeBytes, + maxWriteBatchSize, + maxKeySize, + // Namespace + namespace, + // Topology + topology, + // Options + options: finalOptions, + // BSON options + bsonOptions: (0, bson_1.resolveBSONOptions)(options), + // Current operation + currentOp, + // Executed + executed, + // Collection + collection, + // Fundamental error + err: undefined, + // check keys + checkKeys: typeof options.checkKeys === 'boolean' ? options.checkKeys : false + }; + // bypass Validation + if (options.bypassDocumentValidation === true) { + this.s.bypassDocumentValidation = true; + } + } + /** + * Add a single insert document to the bulk operation + * + * @example + * ```ts + * const bulkOp = collection.initializeOrderedBulkOp(); + * + * // Adds three inserts to the bulkOp. + * bulkOp + * .insert({ a: 1 }) + * .insert({ b: 2 }) + * .insert({ c: 3 }); + * await bulkOp.execute(); + * ``` + */ + insert(document) { + (0, utils_1.maybeAddIdToDocuments)(this.collection, document, { + forceServerObjectId: this.shouldForceServerObjectId() + }); + return this.addToOperationsList(exports.BatchType.INSERT, document); + } + /** + * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne. + * Returns a builder object used to complete the definition of the operation. + * + * @example + * ```ts + * const bulkOp = collection.initializeOrderedBulkOp(); + * + * // Add an updateOne to the bulkOp + * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } }); + * + * // Add an updateMany to the bulkOp + * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } }); + * + * // Add an upsert + * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } }); + * + * // Add a deletion + * bulkOp.find({ g: 7 }).deleteOne(); + * + * // Add a multi deletion + * bulkOp.find({ h: 8 }).delete(); + * + * // Add a replaceOne + * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }}); + * + * // Update using a pipeline (requires Mongodb 4.2 or higher) + * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([ + * { $set: { total: { $sum: [ '$y', '$z' ] } } } + * ]); + * + * // All of the ops will now be executed + * await bulkOp.execute(); + * ``` + */ + find(selector) { + if (!selector) { + throw new error_1.MongoInvalidArgumentError('Bulk find operation must specify a selector'); + } + // Save a current selector + this.s.currentOp = { + selector: selector + }; + return new FindOperators(this); + } + /** Specifies a raw operation to perform in the bulk write. */ + raw(op) { + if (op == null || typeof op !== 'object') { + throw new error_1.MongoInvalidArgumentError('Operation must be an object with an operation key'); + } + if ('insertOne' in op) { + const forceServerObjectId = this.shouldForceServerObjectId(); + const document = op.insertOne && op.insertOne.document == null + ? // TODO(NODE-6003): remove support for omitting the `documents` subdocument in bulk inserts + op.insertOne + : op.insertOne.document; + (0, utils_1.maybeAddIdToDocuments)(this.collection, document, { forceServerObjectId }); + return this.addToOperationsList(exports.BatchType.INSERT, document); + } + if ('replaceOne' in op || 'updateOne' in op || 'updateMany' in op) { + if ('replaceOne' in op) { + if ('q' in op.replaceOne) { + throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed'); + } + const updateStatement = (0, update_1.makeUpdateStatement)(op.replaceOne.filter, op.replaceOne.replacement, { ...op.replaceOne, multi: false }); + if ((0, utils_2.hasAtomicOperators)(updateStatement.u)) { + throw new error_1.MongoInvalidArgumentError('Replacement document must not use atomic operators'); + } + return this.addToOperationsList(exports.BatchType.UPDATE, updateStatement); + } + if ('updateOne' in op) { + if ('q' in op.updateOne) { + throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed'); + } + const updateStatement = (0, update_1.makeUpdateStatement)(op.updateOne.filter, op.updateOne.update, { + ...op.updateOne, + multi: false + }); + if (!(0, utils_2.hasAtomicOperators)(updateStatement.u)) { + throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators'); + } + return this.addToOperationsList(exports.BatchType.UPDATE, updateStatement); + } + if ('updateMany' in op) { + if ('q' in op.updateMany) { + throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed'); + } + const updateStatement = (0, update_1.makeUpdateStatement)(op.updateMany.filter, op.updateMany.update, { + ...op.updateMany, + multi: true + }); + if (!(0, utils_2.hasAtomicOperators)(updateStatement.u)) { + throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators'); + } + return this.addToOperationsList(exports.BatchType.UPDATE, updateStatement); + } + } + if ('deleteOne' in op) { + if ('q' in op.deleteOne) { + throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed'); + } + return this.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(op.deleteOne.filter, { ...op.deleteOne, limit: 1 })); + } + if ('deleteMany' in op) { + if ('q' in op.deleteMany) { + throw new error_1.MongoInvalidArgumentError('Raw operations are not allowed'); + } + return this.addToOperationsList(exports.BatchType.DELETE, (0, delete_1.makeDeleteStatement)(op.deleteMany.filter, { ...op.deleteMany, limit: 0 })); + } + // otherwise an unknown operation was provided + throw new error_1.MongoInvalidArgumentError('bulkWrite only supports insertOne, updateOne, updateMany, deleteOne, deleteMany'); + } + get bsonOptions() { + return this.s.bsonOptions; + } + get writeConcern() { + return this.s.writeConcern; + } + get batches() { + const batches = [...this.s.batches]; + if (this.isOrdered) { + if (this.s.currentBatch) + batches.push(this.s.currentBatch); + } + else { + if (this.s.currentInsertBatch) + batches.push(this.s.currentInsertBatch); + if (this.s.currentUpdateBatch) + batches.push(this.s.currentUpdateBatch); + if (this.s.currentRemoveBatch) + batches.push(this.s.currentRemoveBatch); + } + return batches; + } + async execute(options = {}) { + if (this.s.executed) { + throw new error_1.MongoBatchReExecutionError(); + } + const writeConcern = write_concern_1.WriteConcern.fromOptions(options); + if (writeConcern) { + this.s.writeConcern = writeConcern; + } + // If we have current batch + if (this.isOrdered) { + if (this.s.currentBatch) + this.s.batches.push(this.s.currentBatch); + } + else { + if (this.s.currentInsertBatch) + this.s.batches.push(this.s.currentInsertBatch); + if (this.s.currentUpdateBatch) + this.s.batches.push(this.s.currentUpdateBatch); + if (this.s.currentRemoveBatch) + this.s.batches.push(this.s.currentRemoveBatch); + } + // If we have no operations in the bulk raise an error + if (this.s.batches.length === 0) { + throw new error_1.MongoInvalidArgumentError('Invalid BulkOperation, Batch cannot be empty'); + } + this.s.executed = true; + const finalOptions = { ...this.s.options, ...options }; + const operation = new BulkWriteShimOperation(this, finalOptions); + return await (0, execute_operation_1.executeOperation)(this.s.collection.client, operation); + } + /** + * Handles the write error before executing commands + * @internal + */ + handleWriteError(callback, writeResult) { + if (this.s.bulkResult.writeErrors.length > 0) { + const msg = this.s.bulkResult.writeErrors[0].errmsg + ? this.s.bulkResult.writeErrors[0].errmsg + : 'write operation failed'; + callback(new MongoBulkWriteError({ + message: msg, + code: this.s.bulkResult.writeErrors[0].code, + writeErrors: this.s.bulkResult.writeErrors + }, writeResult)); + return true; + } + const writeConcernError = writeResult.getWriteConcernError(); + if (writeConcernError) { + callback(new MongoBulkWriteError(writeConcernError, writeResult)); + return true; + } + return false; + } + shouldForceServerObjectId() { + return (this.s.options.forceServerObjectId === true || + this.s.collection.s.db.options?.forceServerObjectId === true); + } +} +exports.BulkOperationBase = BulkOperationBase; +Object.defineProperty(BulkOperationBase.prototype, 'length', { + enumerable: true, + get() { + return this.s.currentIndex; + } +}); +function isInsertBatch(batch) { + return batch.batchType === exports.BatchType.INSERT; +} +function isUpdateBatch(batch) { + return batch.batchType === exports.BatchType.UPDATE; +} +function isDeleteBatch(batch) { + return batch.batchType === exports.BatchType.DELETE; +} +function buildCurrentOp(bulkOp) { + let { currentOp } = bulkOp.s; + bulkOp.s.currentOp = undefined; + if (!currentOp) + currentOp = {}; + return currentOp; +} +//# sourceMappingURL=common.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/common.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/common.js.map new file mode 100644 index 000000000..5daf42f97 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/common.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/ordered.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/ordered.js new file mode 100644 index 000000000..667f724f1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/ordered.js @@ -0,0 +1,67 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.OrderedBulkOperation = void 0; +const BSON = require("../bson"); +const error_1 = require("../error"); +const common_1 = require("./common"); +/** @public */ +class OrderedBulkOperation extends common_1.BulkOperationBase { + /** @internal */ + constructor(collection, options) { + super(collection, options, true); + } + addToOperationsList(batchType, document) { + // Get the bsonSize + const bsonSize = BSON.calculateObjectSize(document, { + checkKeys: false, + // Since we don't know what the user selected for BSON options here, + // err on the safe side, and check the size with ignoreUndefined: false. + ignoreUndefined: false + }); + // Throw error if the doc is bigger than the max BSON size + if (bsonSize >= this.s.maxBsonObjectSize) + // TODO(NODE-3483): Change this to MongoBSONError + throw new error_1.MongoInvalidArgumentError(`Document is larger than the maximum size ${this.s.maxBsonObjectSize}`); + // Create a new batch object if we don't have a current one + if (this.s.currentBatch == null) { + this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex); + } + const maxKeySize = this.s.maxKeySize; + // Check if we need to create a new batch + if ( + // New batch if we exceed the max batch op size + this.s.currentBatchSize + 1 >= this.s.maxWriteBatchSize || + // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc, + // since we can't sent an empty batch + (this.s.currentBatchSize > 0 && + this.s.currentBatchSizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) || + // New batch if the new op does not have the same op type as the current batch + this.s.currentBatch.batchType !== batchType) { + // Save the batch to the execution stack + this.s.batches.push(this.s.currentBatch); + // Create a new batch + this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex); + // Reset the current size trackers + this.s.currentBatchSize = 0; + this.s.currentBatchSizeBytes = 0; + } + if (batchType === common_1.BatchType.INSERT) { + this.s.bulkResult.insertedIds.push({ + index: this.s.currentIndex, + _id: document._id + }); + } + // We have an array of documents + if (Array.isArray(document)) { + throw new error_1.MongoInvalidArgumentError('Operation passed in cannot be an Array'); + } + this.s.currentBatch.originalIndexes.push(this.s.currentIndex); + this.s.currentBatch.operations.push(document); + this.s.currentBatchSize += 1; + this.s.currentBatchSizeBytes += maxKeySize + bsonSize; + this.s.currentIndex += 1; + return this; + } +} +exports.OrderedBulkOperation = OrderedBulkOperation; +//# sourceMappingURL=ordered.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/ordered.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/ordered.js.map new file mode 100644 index 000000000..7f8fde0d7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/ordered.js.map @@ -0,0 +1 @@ +{"version":3,"file":"ordered.js","sourceRoot":"","sources":["../../src/bulk/ordered.ts"],"names":[],"mappings":";;;AACA,gCAAgC;AAEhC,oCAAqD;AAGrD,qCAAsF;AAEtF,cAAc;AACd,MAAa,oBAAqB,SAAQ,0BAAiB;IACzD,gBAAgB;IAChB,YAAY,UAAsB,EAAE,OAAyB;QAC3D,KAAK,CAAC,UAAU,EAAE,OAAO,EAAE,IAAI,CAAC,CAAC;IACnC,CAAC;IAED,mBAAmB,CACjB,SAAoB,EACpB,QAAsD;QAEtD,mBAAmB;QACnB,MAAM,QAAQ,GAAG,IAAI,CAAC,mBAAmB,CAAC,QAAQ,EAAE;YAClD,SAAS,EAAE,KAAK;YAChB,oEAAoE;YACpE,wEAAwE;YACxE,eAAe,EAAE,KAAK;SAChB,CAAC,CAAC;QAEV,0DAA0D;QAC1D,IAAI,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB;YACtC,iDAAiD;YACjD,MAAM,IAAI,iCAAyB,CACjC,4CAA4C,IAAI,CAAC,CAAC,CAAC,iBAAiB,EAAE,CACvE,CAAC;QAEJ,2DAA2D;QAC3D,IAAI,IAAI,CAAC,CAAC,CAAC,YAAY,IAAI,IAAI,EAAE;YAC/B,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;SACjE;QAED,MAAM,UAAU,GAAG,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC;QAErC,yCAAyC;QACzC;QACE,+CAA+C;QAC/C,IAAI,CAAC,CAAC,CAAC,gBAAgB,GAAG,CAAC,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB;YACvD,yFAAyF;YACzF,qCAAqC;YACrC,CAAC,IAAI,CAAC,CAAC,CAAC,gBAAgB,GAAG,CAAC;gBAC1B,IAAI,CAAC,CAAC,CAAC,qBAAqB,GAAG,UAAU,GAAG,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB,CAAC;YACnF,8EAA8E;YAC9E,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,KAAK,SAAS,EAC3C;YACA,wCAAwC;YACxC,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;YAEzC,qBAAqB;YACrB,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;YAEhE,kCAAkC;YAClC,IAAI,CAAC,CAAC,CAAC,gBAAgB,GAAG,CAAC,CAAC;YAC5B,IAAI,CAAC,CAAC,CAAC,qBAAqB,GAAG,CAAC,CAAC;SAClC;QAED,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YAClC,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC,WAAW,CAAC,IAAI,CAAC;gBACjC,KAAK,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY;gBAC1B,GAAG,EAAG,QAAqB,CAAC,GAAG;aAChC,CAAC,CAAC;SACJ;QAED,gCAAgC;QAChC,IAAI,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,EAAE;YAC3B,MAAM,IAAI,iCAAyB,CAAC,wCAAwC,CAAC,CAAC;SAC/E;QAED,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,eAAe,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAC9D,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,UAAU,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;QAC9C,IAAI,CAAC,CAAC,CAAC,gBAAgB,IAAI,CAAC,CAAC;QAC7B,IAAI,CAAC,CAAC,CAAC,qBAAqB,IAAI,UAAU,GAAG,QAAQ,CAAC;QACtD,IAAI,CAAC,CAAC,CAAC,YAAY,IAAI,CAAC,CAAC;QACzB,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAzED,oDAyEC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/unordered.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/unordered.js new file mode 100644 index 000000000..14b8f038f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/unordered.js @@ -0,0 +1,92 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.UnorderedBulkOperation = void 0; +const BSON = require("../bson"); +const error_1 = require("../error"); +const common_1 = require("./common"); +/** @public */ +class UnorderedBulkOperation extends common_1.BulkOperationBase { + /** @internal */ + constructor(collection, options) { + super(collection, options, false); + } + handleWriteError(callback, writeResult) { + if (this.s.batches.length) { + return false; + } + return super.handleWriteError(callback, writeResult); + } + addToOperationsList(batchType, document) { + // Get the bsonSize + const bsonSize = BSON.calculateObjectSize(document, { + checkKeys: false, + // Since we don't know what the user selected for BSON options here, + // err on the safe side, and check the size with ignoreUndefined: false. + ignoreUndefined: false + }); + // Throw error if the doc is bigger than the max BSON size + if (bsonSize >= this.s.maxBsonObjectSize) { + // TODO(NODE-3483): Change this to MongoBSONError + throw new error_1.MongoInvalidArgumentError(`Document is larger than the maximum size ${this.s.maxBsonObjectSize}`); + } + // Holds the current batch + this.s.currentBatch = undefined; + // Get the right type of batch + if (batchType === common_1.BatchType.INSERT) { + this.s.currentBatch = this.s.currentInsertBatch; + } + else if (batchType === common_1.BatchType.UPDATE) { + this.s.currentBatch = this.s.currentUpdateBatch; + } + else if (batchType === common_1.BatchType.DELETE) { + this.s.currentBatch = this.s.currentRemoveBatch; + } + const maxKeySize = this.s.maxKeySize; + // Create a new batch object if we don't have a current one + if (this.s.currentBatch == null) { + this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex); + } + // Check if we need to create a new batch + if ( + // New batch if we exceed the max batch op size + this.s.currentBatch.size + 1 >= this.s.maxWriteBatchSize || + // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc, + // since we can't sent an empty batch + (this.s.currentBatch.size > 0 && + this.s.currentBatch.sizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) || + // New batch if the new op does not have the same op type as the current batch + this.s.currentBatch.batchType !== batchType) { + // Save the batch to the execution stack + this.s.batches.push(this.s.currentBatch); + // Create a new batch + this.s.currentBatch = new common_1.Batch(batchType, this.s.currentIndex); + } + // We have an array of documents + if (Array.isArray(document)) { + throw new error_1.MongoInvalidArgumentError('Operation passed in cannot be an Array'); + } + this.s.currentBatch.operations.push(document); + this.s.currentBatch.originalIndexes.push(this.s.currentIndex); + this.s.currentIndex = this.s.currentIndex + 1; + // Save back the current Batch to the right type + if (batchType === common_1.BatchType.INSERT) { + this.s.currentInsertBatch = this.s.currentBatch; + this.s.bulkResult.insertedIds.push({ + index: this.s.bulkResult.insertedIds.length, + _id: document._id + }); + } + else if (batchType === common_1.BatchType.UPDATE) { + this.s.currentUpdateBatch = this.s.currentBatch; + } + else if (batchType === common_1.BatchType.DELETE) { + this.s.currentRemoveBatch = this.s.currentBatch; + } + // Update current batch size + this.s.currentBatch.size += 1; + this.s.currentBatch.sizeBytes += maxKeySize + bsonSize; + return this; + } +} +exports.UnorderedBulkOperation = UnorderedBulkOperation; +//# sourceMappingURL=unordered.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/unordered.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/unordered.js.map new file mode 100644 index 000000000..a510ddd80 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/bulk/unordered.js.map @@ -0,0 +1 @@ +{"version":3,"file":"unordered.js","sourceRoot":"","sources":["../../src/bulk/unordered.ts"],"names":[],"mappings":";;;AACA,gCAAgC;AAEhC,oCAAqD;AAIrD,qCAMkB;AAElB,cAAc;AACd,MAAa,sBAAuB,SAAQ,0BAAiB;IAC3D,gBAAgB;IAChB,YAAY,UAAsB,EAAE,OAAyB;QAC3D,KAAK,CAAC,UAAU,EAAE,OAAO,EAAE,KAAK,CAAC,CAAC;IACpC,CAAC;IAEQ,gBAAgB,CAAC,QAAkB,EAAE,WAA4B;QACxE,IAAI,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,MAAM,EAAE;YACzB,OAAO,KAAK,CAAC;SACd;QAED,OAAO,KAAK,CAAC,gBAAgB,CAAC,QAAQ,EAAE,WAAW,CAAC,CAAC;IACvD,CAAC;IAED,mBAAmB,CACjB,SAAoB,EACpB,QAAsD;QAEtD,mBAAmB;QACnB,MAAM,QAAQ,GAAG,IAAI,CAAC,mBAAmB,CAAC,QAAQ,EAAE;YAClD,SAAS,EAAE,KAAK;YAEhB,oEAAoE;YACpE,wEAAwE;YACxE,eAAe,EAAE,KAAK;SAChB,CAAC,CAAC;QAEV,0DAA0D;QAC1D,IAAI,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB,EAAE;YACxC,iDAAiD;YACjD,MAAM,IAAI,iCAAyB,CACjC,4CAA4C,IAAI,CAAC,CAAC,CAAC,iBAAiB,EAAE,CACvE,CAAC;SACH;QAED,0BAA0B;QAC1B,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,SAAS,CAAC;QAChC,8BAA8B;QAC9B,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YAClC,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,kBAAkB,CAAC;SACjD;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YACzC,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,kBAAkB,CAAC;SACjD;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YACzC,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,kBAAkB,CAAC;SACjD;QAED,MAAM,UAAU,GAAG,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC;QAErC,2DAA2D;QAC3D,IAAI,IAAI,CAAC,CAAC,CAAC,YAAY,IAAI,IAAI,EAAE;YAC/B,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;SACjE;QAED,yCAAyC;QACzC;QACE,+CAA+C;QAC/C,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,IAAI,GAAG,CAAC,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB;YACxD,yFAAyF;YACzF,qCAAqC;YACrC,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,IAAI,GAAG,CAAC;gBAC3B,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,GAAG,UAAU,GAAG,QAAQ,IAAI,IAAI,CAAC,CAAC,CAAC,iBAAiB,CAAC;YACpF,8EAA8E;YAC9E,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,KAAK,SAAS,EAC3C;YACA,wCAAwC;YACxC,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;YAEzC,qBAAqB;YACrB,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,cAAK,CAAC,SAAS,EAAE,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;SACjE;QAED,gCAAgC;QAChC,IAAI,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,EAAE;YAC3B,MAAM,IAAI,iCAAyB,CAAC,wCAAwC,CAAC,CAAC;SAC/E;QAED,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,UAAU,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;QAC9C,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,eAAe,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC;QAC9D,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,GAAG,CAAC,CAAC;QAE9C,gDAAgD;QAChD,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YAClC,IAAI,CAAC,CAAC,CAAC,kBAAkB,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC;YAChD,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC,WAAW,CAAC,IAAI,CAAC;gBACjC,KAAK,EAAE,IAAI,CAAC,CAAC,CAAC,UAAU,CAAC,WAAW,CAAC,MAAM;gBAC3C,GAAG,EAAG,QAAqB,CAAC,GAAG;aAChC,CAAC,CAAC;SACJ;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YACzC,IAAI,CAAC,CAAC,CAAC,kBAAkB,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC;SACjD;aAAM,IAAI,SAAS,KAAK,kBAAS,CAAC,MAAM,EAAE;YACzC,IAAI,CAAC,CAAC,CAAC,kBAAkB,GAAG,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC;SACjD;QAED,4BAA4B;QAC5B,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,IAAI,IAAI,CAAC,CAAC;QAC9B,IAAI,CAAC,CAAC,CAAC,YAAY,CAAC,SAAS,IAAI,UAAU,GAAG,QAAQ,CAAC;QAEvD,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAnGD,wDAmGC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/change_stream.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/change_stream.js new file mode 100644 index 000000000..75c9e06c4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/change_stream.js @@ -0,0 +1,409 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ChangeStream = void 0; +const collection_1 = require("./collection"); +const constants_1 = require("./constants"); +const change_stream_cursor_1 = require("./cursor/change_stream_cursor"); +const db_1 = require("./db"); +const error_1 = require("./error"); +const mongo_client_1 = require("./mongo_client"); +const mongo_types_1 = require("./mongo_types"); +const utils_1 = require("./utils"); +/** @internal */ +const kCursorStream = Symbol('cursorStream'); +/** @internal */ +const kClosed = Symbol('closed'); +/** @internal */ +const kMode = Symbol('mode'); +const CHANGE_STREAM_OPTIONS = [ + 'resumeAfter', + 'startAfter', + 'startAtOperationTime', + 'fullDocument', + 'fullDocumentBeforeChange', + 'showExpandedEvents' +]; +const CHANGE_DOMAIN_TYPES = { + COLLECTION: Symbol('Collection'), + DATABASE: Symbol('Database'), + CLUSTER: Symbol('Cluster') +}; +const CHANGE_STREAM_EVENTS = [constants_1.RESUME_TOKEN_CHANGED, constants_1.END, constants_1.CLOSE]; +const NO_RESUME_TOKEN_ERROR = 'A change stream document has been received that lacks a resume token (_id).'; +const CHANGESTREAM_CLOSED_ERROR = 'ChangeStream is closed'; +/** + * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}. + * @public + */ +class ChangeStream extends mongo_types_1.TypedEventEmitter { + /** + * @internal + * + * @param parent - The parent object that created this change stream + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents + */ + constructor(parent, pipeline = [], options = {}) { + super(); + this.pipeline = pipeline; + this.options = { ...options }; + delete this.options.writeConcern; + if (parent instanceof collection_1.Collection) { + this.type = CHANGE_DOMAIN_TYPES.COLLECTION; + } + else if (parent instanceof db_1.Db) { + this.type = CHANGE_DOMAIN_TYPES.DATABASE; + } + else if (parent instanceof mongo_client_1.MongoClient) { + this.type = CHANGE_DOMAIN_TYPES.CLUSTER; + } + else { + throw new error_1.MongoChangeStreamError('Parent provided to ChangeStream constructor must be an instance of Collection, Db, or MongoClient'); + } + this.parent = parent; + this.namespace = parent.s.namespace; + if (!this.options.readPreference && parent.readPreference) { + this.options.readPreference = parent.readPreference; + } + // Create contained Change Stream cursor + this.cursor = this._createChangeStreamCursor(options); + this[kClosed] = false; + this[kMode] = false; + // Listen for any `change` listeners being added to ChangeStream + this.on('newListener', eventName => { + if (eventName === 'change' && this.cursor && this.listenerCount('change') === 0) { + this._streamEvents(this.cursor); + } + }); + this.on('removeListener', eventName => { + if (eventName === 'change' && this.listenerCount('change') === 0 && this.cursor) { + this[kCursorStream]?.removeAllListeners('data'); + } + }); + } + /** @internal */ + get cursorStream() { + return this[kCursorStream]; + } + /** The cached resume token that is used to resume after the most recently returned change. */ + get resumeToken() { + return this.cursor?.resumeToken; + } + /** Check if there is any document still available in the Change Stream */ + async hasNext() { + this._setIsIterator(); + // Change streams must resume indefinitely while each resume event succeeds. + // This loop continues until either a change event is received or until a resume attempt + // fails. + // eslint-disable-next-line no-constant-condition + while (true) { + try { + const hasNext = await this.cursor.hasNext(); + return hasNext; + } + catch (error) { + try { + await this._processErrorIteratorMode(error); + } + catch (error) { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + throw error; + } + } + } + } + /** Get the next available document from the Change Stream. */ + async next() { + this._setIsIterator(); + // Change streams must resume indefinitely while each resume event succeeds. + // This loop continues until either a change event is received or until a resume attempt + // fails. + // eslint-disable-next-line no-constant-condition + while (true) { + try { + const change = await this.cursor.next(); + const processedChange = this._processChange(change ?? null); + return processedChange; + } + catch (error) { + try { + await this._processErrorIteratorMode(error); + } + catch (error) { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + throw error; + } + } + } + } + /** + * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned + */ + async tryNext() { + this._setIsIterator(); + // Change streams must resume indefinitely while each resume event succeeds. + // This loop continues until either a change event is received or until a resume attempt + // fails. + // eslint-disable-next-line no-constant-condition + while (true) { + try { + const change = await this.cursor.tryNext(); + return change ?? null; + } + catch (error) { + try { + await this._processErrorIteratorMode(error); + } + catch (error) { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + throw error; + } + } + } + } + async *[Symbol.asyncIterator]() { + if (this.closed) { + return; + } + try { + // Change streams run indefinitely as long as errors are resumable + // So the only loop breaking condition is if `next()` throws + while (true) { + yield await this.next(); + } + } + finally { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + } + } + /** Is the cursor closed */ + get closed() { + return this[kClosed] || this.cursor.closed; + } + /** Close the Change Stream */ + async close() { + this[kClosed] = true; + const cursor = this.cursor; + try { + await cursor.close(); + } + finally { + this._endStream(); + } + } + /** + * Return a modified Readable stream including a possible transform method. + * + * NOTE: When using a Stream to process change stream events, the stream will + * NOT automatically resume in the case a resumable error is encountered. + * + * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed + */ + stream(options) { + if (this.closed) { + throw new error_1.MongoChangeStreamError(CHANGESTREAM_CLOSED_ERROR); + } + this.streamOptions = options; + return this.cursor.stream(options); + } + /** @internal */ + _setIsEmitter() { + if (this[kMode] === 'iterator') { + // TODO(NODE-3485): Replace with MongoChangeStreamModeError + throw new error_1.MongoAPIError('ChangeStream cannot be used as an EventEmitter after being used as an iterator'); + } + this[kMode] = 'emitter'; + } + /** @internal */ + _setIsIterator() { + if (this[kMode] === 'emitter') { + // TODO(NODE-3485): Replace with MongoChangeStreamModeError + throw new error_1.MongoAPIError('ChangeStream cannot be used as an iterator after being used as an EventEmitter'); + } + this[kMode] = 'iterator'; + } + /** + * Create a new change stream cursor based on self's configuration + * @internal + */ + _createChangeStreamCursor(options) { + const changeStreamStageOptions = (0, utils_1.filterOptions)(options, CHANGE_STREAM_OPTIONS); + if (this.type === CHANGE_DOMAIN_TYPES.CLUSTER) { + changeStreamStageOptions.allChangesForCluster = true; + } + const pipeline = [{ $changeStream: changeStreamStageOptions }, ...this.pipeline]; + const client = this.type === CHANGE_DOMAIN_TYPES.CLUSTER + ? this.parent + : this.type === CHANGE_DOMAIN_TYPES.DATABASE + ? this.parent.client + : this.type === CHANGE_DOMAIN_TYPES.COLLECTION + ? this.parent.client + : null; + if (client == null) { + // This should never happen because of the assertion in the constructor + throw new error_1.MongoRuntimeError(`Changestream type should only be one of cluster, database, collection. Found ${this.type.toString()}`); + } + const changeStreamCursor = new change_stream_cursor_1.ChangeStreamCursor(client, this.namespace, pipeline, options); + for (const event of CHANGE_STREAM_EVENTS) { + changeStreamCursor.on(event, e => this.emit(event, e)); + } + if (this.listenerCount(ChangeStream.CHANGE) > 0) { + this._streamEvents(changeStreamCursor); + } + return changeStreamCursor; + } + /** @internal */ + _closeEmitterModeWithError(error) { + this.emit(ChangeStream.ERROR, error); + // eslint-disable-next-line github/no-then + this.close().then(undefined, utils_1.squashError); + } + /** @internal */ + _streamEvents(cursor) { + this._setIsEmitter(); + const stream = this[kCursorStream] ?? cursor.stream(); + this[kCursorStream] = stream; + stream.on('data', change => { + try { + const processedChange = this._processChange(change); + this.emit(ChangeStream.CHANGE, processedChange); + } + catch (error) { + this.emit(ChangeStream.ERROR, error); + } + }); + stream.on('error', error => this._processErrorStreamMode(error)); + } + /** @internal */ + _endStream() { + const cursorStream = this[kCursorStream]; + if (cursorStream) { + ['data', 'close', 'end', 'error'].forEach(event => cursorStream.removeAllListeners(event)); + cursorStream.destroy(); + } + this[kCursorStream] = undefined; + } + /** @internal */ + _processChange(change) { + if (this[kClosed]) { + // TODO(NODE-3485): Replace with MongoChangeStreamClosedError + throw new error_1.MongoAPIError(CHANGESTREAM_CLOSED_ERROR); + } + // a null change means the cursor has been notified, implicitly closing the change stream + if (change == null) { + // TODO(NODE-3485): Replace with MongoChangeStreamClosedError + throw new error_1.MongoRuntimeError(CHANGESTREAM_CLOSED_ERROR); + } + if (change && !change._id) { + throw new error_1.MongoChangeStreamError(NO_RESUME_TOKEN_ERROR); + } + // cache the resume token + this.cursor.cacheResumeToken(change._id); + // wipe the startAtOperationTime if there was one so that there won't be a conflict + // between resumeToken and startAtOperationTime if we need to reconnect the cursor + this.options.startAtOperationTime = undefined; + return change; + } + /** @internal */ + _processErrorStreamMode(changeStreamError) { + // If the change stream has been closed explicitly, do not process error. + if (this[kClosed]) + return; + if ((0, error_1.isResumableError)(changeStreamError, this.cursor.maxWireVersion)) { + this._endStream(); + // eslint-disable-next-line github/no-then + this.cursor.close().then(undefined, utils_1.squashError); + const topology = (0, utils_1.getTopology)(this.parent); + topology + .selectServer(this.cursor.readPreference, { + operationName: 'reconnect topology in change stream' + }) + // eslint-disable-next-line github/no-then + .then(() => { + this.cursor = this._createChangeStreamCursor(this.cursor.resumeOptions); + }, () => this._closeEmitterModeWithError(changeStreamError)); + } + else { + this._closeEmitterModeWithError(changeStreamError); + } + } + /** @internal */ + async _processErrorIteratorMode(changeStreamError) { + if (this[kClosed]) { + // TODO(NODE-3485): Replace with MongoChangeStreamClosedError + throw new error_1.MongoAPIError(CHANGESTREAM_CLOSED_ERROR); + } + if (!(0, error_1.isResumableError)(changeStreamError, this.cursor.maxWireVersion)) { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + throw changeStreamError; + } + try { + await this.cursor.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + const topology = (0, utils_1.getTopology)(this.parent); + try { + await topology.selectServer(this.cursor.readPreference, { + operationName: 'reconnect topology in change stream' + }); + this.cursor = this._createChangeStreamCursor(this.cursor.resumeOptions); + } + catch { + // if the topology can't reconnect, close the stream + await this.close(); + throw changeStreamError; + } + } +} +/** @event */ +ChangeStream.RESPONSE = constants_1.RESPONSE; +/** @event */ +ChangeStream.MORE = constants_1.MORE; +/** @event */ +ChangeStream.INIT = constants_1.INIT; +/** @event */ +ChangeStream.CLOSE = constants_1.CLOSE; +/** + * Fired for each new matching change in the specified namespace. Attaching a `change` + * event listener to a Change Stream will switch the stream into flowing mode. Data will + * then be passed as soon as it is available. + * @event + */ +ChangeStream.CHANGE = constants_1.CHANGE; +/** @event */ +ChangeStream.END = constants_1.END; +/** @event */ +ChangeStream.ERROR = constants_1.ERROR; +/** + * Emitted each time the change stream stores a new resume token. + * @event + */ +ChangeStream.RESUME_TOKEN_CHANGED = constants_1.RESUME_TOKEN_CHANGED; +exports.ChangeStream = ChangeStream; +//# sourceMappingURL=change_stream.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/change_stream.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/change_stream.js.map new file mode 100644 index 000000000..aefb6d3cb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/change_stream.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js new file mode 100644 index 000000000..148b572ae --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js @@ -0,0 +1,307 @@ +"use strict"; +var _a; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AutoEncrypter = exports.AutoEncryptionLoggerLevel = void 0; +const bson_1 = require("../bson"); +const deps_1 = require("../deps"); +const error_1 = require("../error"); +const mongo_client_1 = require("../mongo_client"); +const utils_1 = require("../utils"); +const cryptoCallbacks = require("./crypto_callbacks"); +const errors_1 = require("./errors"); +const mongocryptd_manager_1 = require("./mongocryptd_manager"); +const providers_1 = require("./providers"); +const state_machine_1 = require("./state_machine"); +/** @public */ +exports.AutoEncryptionLoggerLevel = Object.freeze({ + FatalError: 0, + Error: 1, + Warning: 2, + Info: 3, + Trace: 4 +}); +// Typescript errors if we index objects with `Symbol.for(...)`, so +// to avoid TS errors we pull them out into variables. Then we can type +// the objects (and class) that we expect to see them on and prevent TS +// errors. +/** @internal */ +const kDecorateResult = Symbol.for('@@mdb.decorateDecryptionResult'); +/** @internal */ +const kDecoratedKeys = Symbol.for('@@mdb.decryptedKeys'); +/** + * @internal An internal class to be used by the driver for auto encryption + * **NOTE**: Not meant to be instantiated directly, this is for internal use only. + */ +class AutoEncrypter { + /** @internal */ + static getMongoCrypt() { + const encryption = (0, deps_1.getMongoDBClientEncryption)(); + if ('kModuleError' in encryption) { + throw encryption.kModuleError; + } + return encryption.MongoCrypt; + } + /** + * Create an AutoEncrypter + * + * **Note**: Do not instantiate this class directly. Rather, supply the relevant options to a MongoClient + * + * **Note**: Supplying `options.schemaMap` provides more security than relying on JSON Schemas obtained from the server. + * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending unencrypted data that should be encrypted. + * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption. + * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error. + * + * @example Create an AutoEncrypter that makes use of mongocryptd + * ```ts + * // Enabling autoEncryption via a MongoClient using mongocryptd + * const { MongoClient } = require('mongodb'); + * const client = new MongoClient(URL, { + * autoEncryption: { + * kmsProviders: { + * aws: { + * accessKeyId: AWS_ACCESS_KEY, + * secretAccessKey: AWS_SECRET_KEY + * } + * } + * } + * }); + * ``` + * + * await client.connect(); + * // From here on, the client will be encrypting / decrypting automatically + * @example Create an AutoEncrypter that makes use of libmongocrypt's CSFLE shared library + * ```ts + * // Enabling autoEncryption via a MongoClient using CSFLE shared library + * const { MongoClient } = require('mongodb'); + * const client = new MongoClient(URL, { + * autoEncryption: { + * kmsProviders: { + * aws: {} + * }, + * extraOptions: { + * cryptSharedLibPath: '/path/to/local/crypt/shared/lib', + * cryptSharedLibRequired: true + * } + * } + * }); + * ``` + * + * await client.connect(); + * // From here on, the client will be encrypting / decrypting automatically + */ + constructor(client, options) { + /** + * Used by devtools to enable decorating decryption results. + * + * When set and enabled, `decrypt` will automatically recursively + * traverse a decrypted document and if a field has been decrypted, + * it will mark it as decrypted. Compass uses this to determine which + * fields were decrypted. + */ + this[_a] = false; + this._client = client; + this._bypassEncryption = options.bypassAutoEncryption === true; + this._keyVaultNamespace = options.keyVaultNamespace || 'admin.datakeys'; + this._keyVaultClient = options.keyVaultClient || client; + this._metaDataClient = options.metadataClient || client; + this._proxyOptions = options.proxyOptions || {}; + this._tlsOptions = options.tlsOptions || {}; + this._kmsProviders = options.kmsProviders || {}; + const mongoCryptOptions = { + cryptoCallbacks + }; + if (options.schemaMap) { + mongoCryptOptions.schemaMap = Buffer.isBuffer(options.schemaMap) + ? options.schemaMap + : (0, bson_1.serialize)(options.schemaMap); + } + if (options.encryptedFieldsMap) { + mongoCryptOptions.encryptedFieldsMap = Buffer.isBuffer(options.encryptedFieldsMap) + ? options.encryptedFieldsMap + : (0, bson_1.serialize)(options.encryptedFieldsMap); + } + mongoCryptOptions.kmsProviders = !Buffer.isBuffer(this._kmsProviders) + ? (0, bson_1.serialize)(this._kmsProviders) + : this._kmsProviders; + if (options.options?.logger) { + mongoCryptOptions.logger = options.options.logger; + } + if (options.extraOptions && options.extraOptions.cryptSharedLibPath) { + mongoCryptOptions.cryptSharedLibPath = options.extraOptions.cryptSharedLibPath; + } + if (options.bypassQueryAnalysis) { + mongoCryptOptions.bypassQueryAnalysis = options.bypassQueryAnalysis; + } + this._bypassMongocryptdAndCryptShared = this._bypassEncryption || !!options.bypassQueryAnalysis; + if (options.extraOptions && options.extraOptions.cryptSharedLibSearchPaths) { + // Only for driver testing + mongoCryptOptions.cryptSharedLibSearchPaths = options.extraOptions.cryptSharedLibSearchPaths; + } + else if (!this._bypassMongocryptdAndCryptShared) { + mongoCryptOptions.cryptSharedLibSearchPaths = ['$SYSTEM']; + } + const MongoCrypt = AutoEncrypter.getMongoCrypt(); + this._mongocrypt = new MongoCrypt(mongoCryptOptions); + this._contextCounter = 0; + if (options.extraOptions && + options.extraOptions.cryptSharedLibRequired && + !this.cryptSharedLibVersionInfo) { + throw new errors_1.MongoCryptInvalidArgumentError('`cryptSharedLibRequired` set but no crypt_shared library loaded'); + } + // Only instantiate mongocryptd manager/client once we know for sure + // that we are not using the CSFLE shared library. + if (!this._bypassMongocryptdAndCryptShared && !this.cryptSharedLibVersionInfo) { + this._mongocryptdManager = new mongocryptd_manager_1.MongocryptdManager(options.extraOptions); + const clientOptions = { + serverSelectionTimeoutMS: 10000 + }; + if (options.extraOptions == null || typeof options.extraOptions.mongocryptdURI !== 'string') { + clientOptions.family = 4; + } + this._mongocryptdClient = new mongo_client_1.MongoClient(this._mongocryptdManager.uri, clientOptions); + } + } + /** + * Initializes the auto encrypter by spawning a mongocryptd and connecting to it. + * + * This function is a no-op when bypassSpawn is set or the crypt shared library is used. + */ + async init() { + if (this._bypassMongocryptdAndCryptShared || this.cryptSharedLibVersionInfo) { + return; + } + if (!this._mongocryptdManager) { + throw new error_1.MongoRuntimeError('Reached impossible state: mongocryptdManager is undefined when neither bypassSpawn nor the shared lib are specified.'); + } + if (!this._mongocryptdClient) { + throw new error_1.MongoRuntimeError('Reached impossible state: mongocryptdClient is undefined when neither bypassSpawn nor the shared lib are specified.'); + } + if (!this._mongocryptdManager.bypassSpawn) { + await this._mongocryptdManager.spawn(); + } + try { + const client = await this._mongocryptdClient.connect(); + return client; + } + catch (error) { + const { message } = error; + if (message && (message.match(/timed out after/) || message.match(/ENOTFOUND/))) { + throw new error_1.MongoRuntimeError('Unable to connect to `mongocryptd`, please make sure it is running or in your PATH for auto-spawn', { cause: error }); + } + throw error; + } + } + /** + * Cleans up the `_mongocryptdClient`, if present. + */ + async teardown(force) { + await this._mongocryptdClient?.close(force); + } + /** + * Encrypt a command for a given namespace. + */ + async encrypt(ns, cmd, options = {}) { + if (this._bypassEncryption) { + // If `bypassAutoEncryption` has been specified, don't encrypt + return cmd; + } + const commandBuffer = Buffer.isBuffer(cmd) ? cmd : (0, bson_1.serialize)(cmd, options); + const context = this._mongocrypt.makeEncryptionContext(utils_1.MongoDBCollectionNamespace.fromString(ns).db, commandBuffer); + context.id = this._contextCounter++; + context.ns = ns; + context.document = cmd; + const stateMachine = new state_machine_1.StateMachine({ + promoteValues: false, + promoteLongs: false, + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + return await stateMachine.execute(this, context); + } + /** + * Decrypt a command response + */ + async decrypt(response, options = {}) { + const buffer = Buffer.isBuffer(response) ? response : (0, bson_1.serialize)(response, options); + const context = this._mongocrypt.makeDecryptionContext(buffer); + context.id = this._contextCounter++; + const stateMachine = new state_machine_1.StateMachine({ + ...options, + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + const decorateResult = this[kDecorateResult]; + const result = await stateMachine.execute(this, context); + if (decorateResult) { + decorateDecryptionResult(result, response); + } + return result; + } + /** + * Ask the user for KMS credentials. + * + * This returns anything that looks like the kmsProviders original input + * option. It can be empty, and any provider specified here will override + * the original ones. + */ + async askForKMSCredentials() { + return await (0, providers_1.refreshKMSCredentials)(this._kmsProviders); + } + /** + * Return the current libmongocrypt's CSFLE shared library version + * as `{ version: bigint, versionStr: string }`, or `null` if no CSFLE + * shared library was loaded. + */ + get cryptSharedLibVersionInfo() { + return this._mongocrypt.cryptSharedLibVersionInfo; + } + static get libmongocryptVersion() { + return AutoEncrypter.getMongoCrypt().libmongocryptVersion; + } +} +exports.AutoEncrypter = AutoEncrypter; +_a = kDecorateResult; +/** + * Recurse through the (identically-shaped) `decrypted` and `original` + * objects and attach a `decryptedKeys` property on each sub-object that + * contained encrypted fields. Because we only call this on BSON responses, + * we do not need to worry about circular references. + * + * @internal + */ +function decorateDecryptionResult(decrypted, original, isTopLevelDecorateCall = true) { + if (isTopLevelDecorateCall) { + // The original value could have been either a JS object or a BSON buffer + if (Buffer.isBuffer(original)) { + original = (0, bson_1.deserialize)(original); + } + if (Buffer.isBuffer(decrypted)) { + throw new error_1.MongoRuntimeError('Expected result of decryption to be deserialized BSON object'); + } + } + if (!decrypted || typeof decrypted !== 'object') + return; + for (const k of Object.keys(decrypted)) { + const originalValue = original[k]; + // An object was decrypted by libmongocrypt if and only if it was + // a BSON Binary object with subtype 6. + if (originalValue && originalValue._bsontype === 'Binary' && originalValue.sub_type === 6) { + if (!decrypted[kDecoratedKeys]) { + Object.defineProperty(decrypted, kDecoratedKeys, { + value: [], + configurable: true, + enumerable: false, + writable: false + }); + } + // this is defined in the preceding if-statement + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + decrypted[kDecoratedKeys].push(k); + // Do not recurse into this decrypted value. It could be a sub-document/array, + // in which case there is no original value associated with its subfields. + continue; + } + decorateDecryptionResult(decrypted[k], originalValue, false); + } +} +//# sourceMappingURL=auto_encrypter.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js.map new file mode 100644 index 000000000..c8a24d8ce --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/auto_encrypter.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/client_encryption.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/client_encryption.js new file mode 100644 index 000000000..c5e316040 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/client_encryption.js @@ -0,0 +1,555 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ClientEncryption = void 0; +const bson_1 = require("../bson"); +const deps_1 = require("../deps"); +const utils_1 = require("../utils"); +const cryptoCallbacks = require("./crypto_callbacks"); +const errors_1 = require("./errors"); +const index_1 = require("./providers/index"); +const state_machine_1 = require("./state_machine"); +/** + * @public + * The public interface for explicit in-use encryption + */ +class ClientEncryption { + /** @internal */ + static getMongoCrypt() { + const encryption = (0, deps_1.getMongoDBClientEncryption)(); + if ('kModuleError' in encryption) { + throw encryption.kModuleError; + } + return encryption.MongoCrypt; + } + /** + * Create a new encryption instance + * + * @example + * ```ts + * new ClientEncryption(mongoClient, { + * keyVaultNamespace: 'client.encryption', + * kmsProviders: { + * local: { + * key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer + * } + * } + * }); + * ``` + * + * @example + * ```ts + * new ClientEncryption(mongoClient, { + * keyVaultNamespace: 'client.encryption', + * kmsProviders: { + * aws: { + * accessKeyId: AWS_ACCESS_KEY, + * secretAccessKey: AWS_SECRET_KEY + * } + * } + * }); + * ``` + */ + constructor(client, options) { + this._client = client; + this._proxyOptions = options.proxyOptions ?? {}; + this._tlsOptions = options.tlsOptions ?? {}; + this._kmsProviders = options.kmsProviders || {}; + if (options.keyVaultNamespace == null) { + throw new errors_1.MongoCryptInvalidArgumentError('Missing required option `keyVaultNamespace`'); + } + const mongoCryptOptions = { + ...options, + cryptoCallbacks, + kmsProviders: !Buffer.isBuffer(this._kmsProviders) + ? (0, bson_1.serialize)(this._kmsProviders) + : this._kmsProviders + }; + this._keyVaultNamespace = options.keyVaultNamespace; + this._keyVaultClient = options.keyVaultClient || client; + const MongoCrypt = ClientEncryption.getMongoCrypt(); + this._mongoCrypt = new MongoCrypt(mongoCryptOptions); + } + /** + * Creates a data key used for explicit encryption and inserts it into the key vault namespace + * + * @example + * ```ts + * // Using async/await to create a local key + * const dataKeyId = await clientEncryption.createDataKey('local'); + * ``` + * + * @example + * ```ts + * // Using async/await to create an aws key + * const dataKeyId = await clientEncryption.createDataKey('aws', { + * masterKey: { + * region: 'us-east-1', + * key: 'xxxxxxxxxxxxxx' // CMK ARN here + * } + * }); + * ``` + * + * @example + * ```ts + * // Using async/await to create an aws key with a keyAltName + * const dataKeyId = await clientEncryption.createDataKey('aws', { + * masterKey: { + * region: 'us-east-1', + * key: 'xxxxxxxxxxxxxx' // CMK ARN here + * }, + * keyAltNames: [ 'mySpecialKey' ] + * }); + * ``` + */ + async createDataKey(provider, options = {}) { + if (options.keyAltNames && !Array.isArray(options.keyAltNames)) { + throw new errors_1.MongoCryptInvalidArgumentError(`Option "keyAltNames" must be an array of strings, but was of type ${typeof options.keyAltNames}.`); + } + let keyAltNames = undefined; + if (options.keyAltNames && options.keyAltNames.length > 0) { + keyAltNames = options.keyAltNames.map((keyAltName, i) => { + if (typeof keyAltName !== 'string') { + throw new errors_1.MongoCryptInvalidArgumentError(`Option "keyAltNames" must be an array of strings, but item at index ${i} was of type ${typeof keyAltName}`); + } + return (0, bson_1.serialize)({ keyAltName }); + }); + } + let keyMaterial = undefined; + if (options.keyMaterial) { + keyMaterial = (0, bson_1.serialize)({ keyMaterial: options.keyMaterial }); + } + const dataKeyBson = (0, bson_1.serialize)({ + provider, + ...options.masterKey + }); + const context = this._mongoCrypt.makeDataKeyContext(dataKeyBson, { + keyAltNames, + keyMaterial + }); + const stateMachine = new state_machine_1.StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + const dataKey = await stateMachine.execute(this, context); + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + const { insertedId } = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .insertOne(dataKey, { writeConcern: { w: 'majority' } }); + return insertedId; + } + /** + * Searches the keyvault for any data keys matching the provided filter. If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options. + * + * If no matches are found, then no bulk write is performed. + * + * @example + * ```ts + * // rewrapping all data data keys (using a filter that matches all documents) + * const filter = {}; + * + * const result = await clientEncryption.rewrapManyDataKey(filter); + * if (result.bulkWriteResult != null) { + * // keys were re-wrapped, results will be available in the bulkWrite object. + * } + * ``` + * + * @example + * ```ts + * // attempting to rewrap all data keys with no matches + * const filter = { _id: new Binary() } // assume _id matches no documents in the database + * const result = await clientEncryption.rewrapManyDataKey(filter); + * + * if (result.bulkWriteResult == null) { + * // no keys matched, `bulkWriteResult` does not exist on the result object + * } + * ``` + */ + async rewrapManyDataKey(filter, options) { + let keyEncryptionKeyBson = undefined; + if (options) { + const keyEncryptionKey = Object.assign({ provider: options.provider }, options.masterKey); + keyEncryptionKeyBson = (0, bson_1.serialize)(keyEncryptionKey); + } + const filterBson = (0, bson_1.serialize)(filter); + const context = this._mongoCrypt.makeRewrapManyDataKeyContext(filterBson, keyEncryptionKeyBson); + const stateMachine = new state_machine_1.StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + const { v: dataKeys } = await stateMachine.execute(this, context); + if (dataKeys.length === 0) { + return {}; + } + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + const replacements = dataKeys.map((key) => ({ + updateOne: { + filter: { _id: key._id }, + update: { + $set: { + masterKey: key.masterKey, + keyMaterial: key.keyMaterial + }, + $currentDate: { + updateDate: true + } + } + } + })); + const result = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .bulkWrite(replacements, { + writeConcern: { w: 'majority' } + }); + return { bulkWriteResult: result }; + } + /** + * Deletes the key with the provided id from the keyvault, if it exists. + * + * @example + * ```ts + * // delete a key by _id + * const id = new Binary(); // id is a bson binary subtype 4 object + * const { deletedCount } = await clientEncryption.deleteKey(id); + * + * if (deletedCount != null && deletedCount > 0) { + * // successful deletion + * } + * ``` + * + */ + async deleteKey(_id) { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + return await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .deleteOne({ _id }, { writeConcern: { w: 'majority' } }); + } + /** + * Finds all the keys currently stored in the keyvault. + * + * This method will not throw. + * + * @returns a FindCursor over all keys in the keyvault. + * @example + * ```ts + * // fetching all keys + * const keys = await clientEncryption.getKeys().toArray(); + * ``` + */ + getKeys() { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + return this._keyVaultClient + .db(dbName) + .collection(collectionName) + .find({}, { readConcern: { level: 'majority' } }); + } + /** + * Finds a key in the keyvault with the specified _id. + * + * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // getting a key by id + * const id = new Binary(); // id is a bson binary subtype 4 object + * const key = await clientEncryption.getKey(id); + * if (!key) { + * // key is null if there was no matching key + * } + * ``` + */ + async getKey(_id) { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + return await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOne({ _id }, { readConcern: { level: 'majority' } }); + } + /** + * Finds a key in the keyvault which has the specified keyAltName. + * + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the keyAltName. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // get a key by alt name + * const keyAltName = 'keyAltName'; + * const key = await clientEncryption.getKeyByAltName(keyAltName); + * if (!key) { + * // key is null if there is no matching key + * } + * ``` + */ + async getKeyByAltName(keyAltName) { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + return await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOne({ keyAltNames: keyAltName }, { readConcern: { level: 'majority' } }); + } + /** + * Adds a keyAltName to a key identified by the provided _id. + * + * This method resolves to/returns the *old* key value (prior to adding the new altKeyName). + * + * @param _id - The id of the document to update. + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // adding an keyAltName to a data key + * const id = new Binary(); // id is a bson binary subtype 4 object + * const keyAltName = 'keyAltName'; + * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName); + * if (!oldKey) { + * // null is returned if there is no matching document with an id matching the supplied id + * } + * ``` + */ + async addKeyAltName(_id, keyAltName) { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + const value = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOneAndUpdate({ _id }, { $addToSet: { keyAltNames: keyAltName } }, { writeConcern: { w: 'majority' }, returnDocument: 'before' }); + return value; + } + /** + * Adds a keyAltName to a key identified by the provided _id. + * + * This method resolves to/returns the *old* key value (prior to removing the new altKeyName). + * + * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document. + * + * @param _id - The id of the document to update. + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // removing a key alt name from a data key + * const id = new Binary(); // id is a bson binary subtype 4 object + * const keyAltName = 'keyAltName'; + * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName); + * + * if (!oldKey) { + * // null is returned if there is no matching document with an id matching the supplied id + * } + * ``` + */ + async removeKeyAltName(_id, keyAltName) { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(this._keyVaultNamespace); + const pipeline = [ + { + $set: { + keyAltNames: { + $cond: [ + { + $eq: ['$keyAltNames', [keyAltName]] + }, + '$$REMOVE', + { + $filter: { + input: '$keyAltNames', + cond: { + $ne: ['$$this', keyAltName] + } + } + } + ] + } + } + } + ]; + const value = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOneAndUpdate({ _id }, pipeline, { + writeConcern: { w: 'majority' }, + returnDocument: 'before' + }); + return value; + } + /** + * A convenience method for creating an encrypted collection. + * This method will create data keys for any encryptedFields that do not have a `keyId` defined + * and then create a new collection with the full set of encryptedFields. + * + * @param db - A Node.js driver Db object with which to create the collection + * @param name - The name of the collection to be created + * @param options - Options for createDataKey and for createCollection + * @returns created collection and generated encryptedFields + * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created. + * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created. + */ + async createEncryptedCollection(db, name, options) { + const { provider, masterKey, createCollectionOptions: { encryptedFields: { ...encryptedFields }, ...createCollectionOptions } } = options; + if (Array.isArray(encryptedFields.fields)) { + const createDataKeyPromises = encryptedFields.fields.map(async (field) => field == null || typeof field !== 'object' || field.keyId != null + ? field + : { + ...field, + keyId: await this.createDataKey(provider, { masterKey }) + }); + const createDataKeyResolutions = await Promise.allSettled(createDataKeyPromises); + encryptedFields.fields = createDataKeyResolutions.map((resolution, index) => resolution.status === 'fulfilled' ? resolution.value : encryptedFields.fields[index]); + const rejection = createDataKeyResolutions.find((result) => result.status === 'rejected'); + if (rejection != null) { + throw new errors_1.MongoCryptCreateDataKeyError(encryptedFields, { cause: rejection.reason }); + } + } + try { + const collection = await db.createCollection(name, { + ...createCollectionOptions, + encryptedFields + }); + return { collection, encryptedFields }; + } + catch (cause) { + throw new errors_1.MongoCryptCreateEncryptedCollectionError(encryptedFields, { cause }); + } + } + /** + * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must + * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error. + * + * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON + * @param options - + * @returns a Promise that either resolves with the encrypted value, or rejects with an error. + * + * @example + * ```ts + * // Encryption with async/await api + * async function encryptMyData(value) { + * const keyId = await clientEncryption.createDataKey('local'); + * return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' }); + * } + * ``` + * + * @example + * ```ts + * // Encryption using a keyAltName + * async function encryptMyData(value) { + * await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' }); + * return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' }); + * } + * ``` + */ + async encrypt(value, options) { + return await this._encrypt(value, false, options); + } + /** + * Encrypts a Match Expression or Aggregate Expression to query a range index. + * + * Only supported when queryType is "rangePreview" and algorithm is "RangePreview". + * + * @experimental The Range algorithm is experimental only. It is not intended for production use. It is subject to breaking changes. + * + * @param expression - a BSON document of one of the following forms: + * 1. A Match Expression of this form: + * `{$and: [{: {$gt: }}, {: {$lt: }}]}` + * 2. An Aggregate Expression of this form: + * `{$and: [{$gt: [, ]}, {$lt: [, ]}]}` + * + * `$gt` may also be `$gte`. `$lt` may also be `$lte`. + * + * @param options - + * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error. + */ + async encryptExpression(expression, options) { + return await this._encrypt(expression, true, options); + } + /** + * Explicitly decrypt a provided encrypted value + * + * @param value - An encrypted value + * @returns a Promise that either resolves with the decrypted value, or rejects with an error + * + * @example + * ```ts + * // Decrypting value with async/await API + * async function decryptMyValue(value) { + * return clientEncryption.decrypt(value); + * } + * ``` + */ + async decrypt(value) { + const valueBuffer = (0, bson_1.serialize)({ v: value }); + const context = this._mongoCrypt.makeExplicitDecryptionContext(valueBuffer); + const stateMachine = new state_machine_1.StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + const { v } = await stateMachine.execute(this, context); + return v; + } + /** + * @internal + * Ask the user for KMS credentials. + * + * This returns anything that looks like the kmsProviders original input + * option. It can be empty, and any provider specified here will override + * the original ones. + */ + async askForKMSCredentials() { + return await (0, index_1.refreshKMSCredentials)(this._kmsProviders); + } + static get libmongocryptVersion() { + return ClientEncryption.getMongoCrypt().libmongocryptVersion; + } + /** + * @internal + * A helper that perform explicit encryption of values and expressions. + * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must + * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error. + * + * @param value - The value that you wish to encrypt. Must be of a type that can be serialized into BSON + * @param expressionMode - a boolean that indicates whether or not to encrypt the value as an expression + * @param options - options to pass to encrypt + * @returns the raw result of the call to stateMachine.execute(). When expressionMode is set to true, the return + * value will be a bson document. When false, the value will be a BSON Binary. + * + */ + async _encrypt(value, expressionMode, options) { + const { algorithm, keyId, keyAltName, contentionFactor, queryType, rangeOptions } = options; + const contextOptions = { + expressionMode, + algorithm + }; + if (keyId) { + contextOptions.keyId = keyId.buffer; + } + if (keyAltName) { + if (keyId) { + throw new errors_1.MongoCryptInvalidArgumentError(`"options" cannot contain both "keyId" and "keyAltName"`); + } + if (typeof keyAltName !== 'string') { + throw new errors_1.MongoCryptInvalidArgumentError(`"options.keyAltName" must be of type string, but was of type ${typeof keyAltName}`); + } + contextOptions.keyAltName = (0, bson_1.serialize)({ keyAltName }); + } + if (typeof contentionFactor === 'number' || typeof contentionFactor === 'bigint') { + contextOptions.contentionFactor = contentionFactor; + } + if (typeof queryType === 'string') { + contextOptions.queryType = queryType; + } + if (typeof rangeOptions === 'object') { + contextOptions.rangeOptions = (0, bson_1.serialize)(rangeOptions); + } + const valueBuffer = (0, bson_1.serialize)({ v: value }); + const stateMachine = new state_machine_1.StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + const context = this._mongoCrypt.makeExplicitEncryptionContext(valueBuffer, contextOptions); + const result = await stateMachine.execute(this, context); + return result.v; + } +} +exports.ClientEncryption = ClientEncryption; +//# sourceMappingURL=client_encryption.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/client_encryption.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/client_encryption.js.map new file mode 100644 index 000000000..269664e3f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/client_encryption.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js new file mode 100644 index 000000000..acdb2c736 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js @@ -0,0 +1,81 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.hmacSha256Hook = exports.hmacSha512Hook = exports.aes256CtrDecryptHook = exports.aes256CtrEncryptHook = exports.aes256CbcDecryptHook = exports.aes256CbcEncryptHook = exports.signRsaSha256Hook = exports.makeHmacHook = exports.sha256Hook = exports.randomHook = exports.makeAES256Hook = void 0; +const crypto = require("crypto"); +function makeAES256Hook(method, mode) { + return function (key, iv, input, output) { + let result; + try { + const cipher = crypto[method](mode, key, iv); + cipher.setAutoPadding(false); + result = cipher.update(input); + const final = cipher.final(); + if (final.length > 0) { + result = Buffer.concat([result, final]); + } + } + catch (e) { + return e; + } + result.copy(output); + return result.length; + }; +} +exports.makeAES256Hook = makeAES256Hook; +function randomHook(buffer, count) { + try { + crypto.randomFillSync(buffer, 0, count); + } + catch (e) { + return e; + } + return count; +} +exports.randomHook = randomHook; +function sha256Hook(input, output) { + let result; + try { + result = crypto.createHash('sha256').update(input).digest(); + } + catch (e) { + return e; + } + result.copy(output); + return result.length; +} +exports.sha256Hook = sha256Hook; +function makeHmacHook(algorithm) { + return (key, input, output) => { + let result; + try { + result = crypto.createHmac(algorithm, key).update(input).digest(); + } + catch (e) { + return e; + } + result.copy(output); + return result.length; + }; +} +exports.makeHmacHook = makeHmacHook; +function signRsaSha256Hook(key, input, output) { + let result; + try { + const signer = crypto.createSign('sha256WithRSAEncryption'); + const privateKey = Buffer.from(`-----BEGIN PRIVATE KEY-----\n${key.toString('base64')}\n-----END PRIVATE KEY-----\n`); + result = signer.update(input).end().sign(privateKey); + } + catch (e) { + return e; + } + result.copy(output); + return result.length; +} +exports.signRsaSha256Hook = signRsaSha256Hook; +exports.aes256CbcEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-cbc'); +exports.aes256CbcDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-cbc'); +exports.aes256CtrEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-ctr'); +exports.aes256CtrDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-ctr'); +exports.hmacSha512Hook = makeHmacHook('sha512'); +exports.hmacSha256Hook = makeHmacHook('sha256'); +//# sourceMappingURL=crypto_callbacks.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js.map new file mode 100644 index 000000000..50a31385a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/crypto_callbacks.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/errors.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/errors.js new file mode 100644 index 000000000..5d91e11e2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/errors.js @@ -0,0 +1,136 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoCryptKMSRequestNetworkTimeoutError = exports.MongoCryptAzureKMSRequestError = exports.MongoCryptCreateEncryptedCollectionError = exports.MongoCryptCreateDataKeyError = exports.MongoCryptInvalidArgumentError = exports.MongoCryptError = void 0; +const error_1 = require("../error"); +/** + * @public + * An error indicating that something went wrong specifically with MongoDB Client Encryption + */ +class MongoCryptError extends error_1.MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options = {}) { + super(message, options); + } + get name() { + return 'MongoCryptError'; + } +} +exports.MongoCryptError = MongoCryptError; +/** + * @public + * + * An error indicating an invalid argument was provided to an encryption API. + */ +class MongoCryptInvalidArgumentError extends MongoCryptError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoCryptInvalidArgumentError'; + } +} +exports.MongoCryptInvalidArgumentError = MongoCryptInvalidArgumentError; +/** + * @public + * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys + */ +class MongoCryptCreateDataKeyError extends MongoCryptError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(encryptedFields, { cause }) { + super(`Unable to complete creating data keys: ${cause.message}`, { cause }); + this.encryptedFields = encryptedFields; + } + get name() { + return 'MongoCryptCreateDataKeyError'; + } +} +exports.MongoCryptCreateDataKeyError = MongoCryptCreateDataKeyError; +/** + * @public + * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection + */ +class MongoCryptCreateEncryptedCollectionError extends MongoCryptError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(encryptedFields, { cause }) { + super(`Unable to create collection: ${cause.message}`, { cause }); + this.encryptedFields = encryptedFields; + } + get name() { + return 'MongoCryptCreateEncryptedCollectionError'; + } +} +exports.MongoCryptCreateEncryptedCollectionError = MongoCryptCreateEncryptedCollectionError; +/** + * @public + * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials. + */ +class MongoCryptAzureKMSRequestError extends MongoCryptError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, body) { + super(message); + this.body = body; + } + get name() { + return 'MongoCryptAzureKMSRequestError'; + } +} +exports.MongoCryptAzureKMSRequestError = MongoCryptAzureKMSRequestError; +/** @public */ +class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError { + get name() { + return 'MongoCryptKMSRequestNetworkTimeoutError'; + } +} +exports.MongoCryptKMSRequestNetworkTimeoutError = MongoCryptKMSRequestNetworkTimeoutError; +//# sourceMappingURL=errors.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/errors.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/errors.js.map new file mode 100644 index 000000000..4576ba255 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/errors.js.map @@ -0,0 +1 @@ +{"version":3,"file":"errors.js","sourceRoot":"","sources":["../../src/client-side-encryption/errors.ts"],"names":[],"mappings":";;;AACA,oCAAsC;AAEtC;;;GAGG;AACH,MAAa,eAAgB,SAAQ,kBAAU;IAC7C;;;;;;;;;;QAUI;IACJ,YAAY,OAAe,EAAE,UAA6B,EAAE;QAC1D,KAAK,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;IAC1B,CAAC;IAED,IAAa,IAAI;QACf,OAAO,iBAAiB,CAAC;IAC3B,CAAC;CACF;AAnBD,0CAmBC;AAED;;;;GAIG;AACH,MAAa,8BAA+B,SAAQ,eAAe;IACjE;;;;;;;;;;QAUI;IACJ,YAAY,OAAe;QACzB,KAAK,CAAC,OAAO,CAAC,CAAC;IACjB,CAAC;IAED,IAAa,IAAI;QACf,OAAO,gCAAgC,CAAC;IAC1C,CAAC;CACF;AAnBD,wEAmBC;AACD;;;GAGG;AACH,MAAa,4BAA6B,SAAQ,eAAe;IAE/D;;;;;;;;;;QAUI;IACJ,YAAY,eAAyB,EAAE,EAAE,KAAK,EAAoB;QAChE,KAAK,CAAC,0CAA0C,KAAK,CAAC,OAAO,EAAE,EAAE,EAAE,KAAK,EAAE,CAAC,CAAC;QAC5E,IAAI,CAAC,eAAe,GAAG,eAAe,CAAC;IACzC,CAAC;IAED,IAAa,IAAI;QACf,OAAO,8BAA8B,CAAC;IACxC,CAAC;CACF;AArBD,oEAqBC;AAED;;;GAGG;AACH,MAAa,wCAAyC,SAAQ,eAAe;IAE3E;;;;;;;;;;QAUI;IACJ,YAAY,eAAyB,EAAE,EAAE,KAAK,EAAoB;QAChE,KAAK,CAAC,gCAAgC,KAAK,CAAC,OAAO,EAAE,EAAE,EAAE,KAAK,EAAE,CAAC,CAAC;QAClE,IAAI,CAAC,eAAe,GAAG,eAAe,CAAC;IACzC,CAAC;IAED,IAAa,IAAI;QACf,OAAO,0CAA0C,CAAC;IACpD,CAAC;CACF;AArBD,4FAqBC;AAED;;;GAGG;AACH,MAAa,8BAA+B,SAAQ,eAAe;IAGjE;;;;;;;;;;QAUI;IACJ,YAAY,OAAe,EAAE,IAAe;QAC1C,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAED,IAAa,IAAI;QACf,OAAO,gCAAgC,CAAC;IAC1C,CAAC;CACF;AAtBD,wEAsBC;AAED,cAAc;AACd,MAAa,uCAAwC,SAAQ,eAAe;IAC1E,IAAa,IAAI;QACf,OAAO,yCAAyC,CAAC;IACnD,CAAC;CACF;AAJD,0FAIC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js new file mode 100644 index 000000000..a4d361ef6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js @@ -0,0 +1,81 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongocryptdManager = void 0; +const error_1 = require("../error"); +/** + * @internal + * An internal class that handles spawning a mongocryptd. + */ +class MongocryptdManager { + constructor(extraOptions = {}) { + this.uri = + typeof extraOptions.mongocryptdURI === 'string' && extraOptions.mongocryptdURI.length > 0 + ? extraOptions.mongocryptdURI + : MongocryptdManager.DEFAULT_MONGOCRYPTD_URI; + this.bypassSpawn = !!extraOptions.mongocryptdBypassSpawn; + this.spawnPath = extraOptions.mongocryptdSpawnPath || ''; + this.spawnArgs = []; + if (Array.isArray(extraOptions.mongocryptdSpawnArgs)) { + this.spawnArgs = this.spawnArgs.concat(extraOptions.mongocryptdSpawnArgs); + } + if (this.spawnArgs + .filter(arg => typeof arg === 'string') + .every(arg => arg.indexOf('--idleShutdownTimeoutSecs') < 0)) { + this.spawnArgs.push('--idleShutdownTimeoutSecs', '60'); + } + } + /** + * Will check to see if a mongocryptd is up. If it is not up, it will attempt + * to spawn a mongocryptd in a detached process, and then wait for it to be up. + */ + async spawn() { + const cmdName = this.spawnPath || 'mongocryptd'; + // eslint-disable-next-line @typescript-eslint/no-var-requires + const { spawn } = require('child_process'); + // Spawned with stdio: ignore and detached: true + // to ensure child can outlive parent. + this._child = spawn(cmdName, this.spawnArgs, { + stdio: 'ignore', + detached: true + }); + this._child.on('error', () => { + // From the FLE spec: + // "The stdout and stderr of the spawned process MUST not be exposed in the driver + // (e.g. redirect to /dev/null). Users can pass the argument --logpath to + // extraOptions.mongocryptdSpawnArgs if they need to inspect mongocryptd logs. + // If spawning is necessary, the driver MUST spawn mongocryptd whenever server + // selection on the MongoClient to mongocryptd fails. If the MongoClient fails to + // connect after spawning, the server selection error is propagated to the user." + // The AutoEncrypter and MongoCryptdManager should work together to spawn + // mongocryptd whenever necessary. Additionally, the `mongocryptd` intentionally + // shuts down after 60s and gets respawned when necessary. We rely on server + // selection timeouts when connecting to the `mongocryptd` to inform users that something + // has been configured incorrectly. For those reasons, we suppress stderr from + // the `mongocryptd` process and immediately unref the process. + }); + // unref child to remove handle from event loop + this._child.unref(); + } + /** + * @returns the result of `fn` or rejects with an error. + */ + async withRespawn(fn) { + try { + const result = await fn(); + return result; + } + catch (err) { + // If we are not bypassing spawning, then we should retry once on a MongoTimeoutError (server selection error) + const shouldSpawn = err instanceof error_1.MongoNetworkTimeoutError && !this.bypassSpawn; + if (!shouldSpawn) { + throw err; + } + } + await this.spawn(); + const result = await fn(); + return result; + } +} +MongocryptdManager.DEFAULT_MONGOCRYPTD_URI = 'mongodb://localhost:27020'; +exports.MongocryptdManager = MongocryptdManager; +//# sourceMappingURL=mongocryptd_manager.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js.map new file mode 100644 index 000000000..cebcb9091 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/mongocryptd_manager.js.map @@ -0,0 +1 @@ +{"version":3,"file":"mongocryptd_manager.js","sourceRoot":"","sources":["../../src/client-side-encryption/mongocryptd_manager.ts"],"names":[],"mappings":";;;AAEA,oCAAoD;AAGpD;;;GAGG;AACH,MAAa,kBAAkB;IAS7B,YAAY,eAA2C,EAAE;QACvD,IAAI,CAAC,GAAG;YACN,OAAO,YAAY,CAAC,cAAc,KAAK,QAAQ,IAAI,YAAY,CAAC,cAAc,CAAC,MAAM,GAAG,CAAC;gBACvF,CAAC,CAAC,YAAY,CAAC,cAAc;gBAC7B,CAAC,CAAC,kBAAkB,CAAC,uBAAuB,CAAC;QAEjD,IAAI,CAAC,WAAW,GAAG,CAAC,CAAC,YAAY,CAAC,sBAAsB,CAAC;QAEzD,IAAI,CAAC,SAAS,GAAG,YAAY,CAAC,oBAAoB,IAAI,EAAE,CAAC;QACzD,IAAI,CAAC,SAAS,GAAG,EAAE,CAAC;QACpB,IAAI,KAAK,CAAC,OAAO,CAAC,YAAY,CAAC,oBAAoB,CAAC,EAAE;YACpD,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,SAAS,CAAC,MAAM,CAAC,YAAY,CAAC,oBAAoB,CAAC,CAAC;SAC3E;QACD,IACE,IAAI,CAAC,SAAS;aACX,MAAM,CAAC,GAAG,CAAC,EAAE,CAAC,OAAO,GAAG,KAAK,QAAQ,CAAC;aACtC,KAAK,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,2BAA2B,CAAC,GAAG,CAAC,CAAC,EAC7D;YACA,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,2BAA2B,EAAE,IAAI,CAAC,CAAC;SACxD;IACH,CAAC;IAED;;;OAGG;IACH,KAAK,CAAC,KAAK;QACT,MAAM,OAAO,GAAG,IAAI,CAAC,SAAS,IAAI,aAAa,CAAC;QAEhD,8DAA8D;QAC9D,MAAM,EAAE,KAAK,EAAE,GAAG,OAAO,CAAC,eAAe,CAAmC,CAAC;QAE7E,gDAAgD;QAChD,sCAAsC;QACtC,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC,OAAO,EAAE,IAAI,CAAC,SAAS,EAAE;YAC3C,KAAK,EAAE,QAAQ;YACf,QAAQ,EAAE,IAAI;SACf,CAAC,CAAC;QAEH,IAAI,CAAC,MAAM,CAAC,EAAE,CAAC,OAAO,EAAE,GAAG,EAAE;YAC3B,qBAAqB;YACrB,kFAAkF;YAClF,yEAAyE;YACzE,8EAA8E;YAC9E,8EAA8E;YAC9E,iFAAiF;YACjF,iFAAiF;YACjF,yEAAyE;YACzE,iFAAiF;YACjF,6EAA6E;YAC7E,yFAAyF;YACzF,+EAA+E;YAC/E,+DAA+D;QACjE,CAAC,CAAC,CAAC;QAEH,+CAA+C;QAC/C,IAAI,CAAC,MAAM,CAAC,KAAK,EAAE,CAAC;IACtB,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,WAAW,CAAI,EAAoB;QACvC,IAAI;YACF,MAAM,MAAM,GAAG,MAAM,EAAE,EAAE,CAAC;YAC1B,OAAO,MAAM,CAAC;SACf;QAAC,OAAO,GAAG,EAAE;YACZ,8GAA8G;YAC9G,MAAM,WAAW,GAAG,GAAG,YAAY,gCAAwB,IAAI,CAAC,IAAI,CAAC,WAAW,CAAC;YACjF,IAAI,CAAC,WAAW,EAAE;gBAChB,MAAM,GAAG,CAAC;aACX;SACF;QACD,MAAM,IAAI,CAAC,KAAK,EAAE,CAAC;QACnB,MAAM,MAAM,GAAG,MAAM,EAAE,EAAE,CAAC;QAC1B,OAAO,MAAM,CAAC;IAChB,CAAC;;AApFM,0CAAuB,GAAG,2BAA2B,CAAC;AADlD,gDAAkB"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/aws.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/aws.js new file mode 100644 index 000000000..35c988b19 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/aws.js @@ -0,0 +1,24 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.loadAWSCredentials = void 0; +const aws_temporary_credentials_1 = require("../../cmap/auth/aws_temporary_credentials"); +/** + * @internal + */ +async function loadAWSCredentials(kmsProviders) { + const credentialProvider = new aws_temporary_credentials_1.AWSSDKCredentialProvider(); + // We shouldn't ever receive a response from the AWS SDK that doesn't have a `SecretAccessKey` + // or `AccessKeyId`. However, TS says these fields are optional. We provide empty strings + // and let libmongocrypt error if we're unable to fetch the required keys. + const { SecretAccessKey = '', AccessKeyId = '', Token } = await credentialProvider.getCredentials(); + const aws = { + secretAccessKey: SecretAccessKey, + accessKeyId: AccessKeyId + }; + // the AWS session token is only required for temporary credentials so only attach it to the + // result if it's present in the response from the aws sdk + Token != null && (aws.sessionToken = Token); + return { ...kmsProviders, aws }; +} +exports.loadAWSCredentials = loadAWSCredentials; +//# sourceMappingURL=aws.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/aws.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/aws.js.map new file mode 100644 index 000000000..3fbb2ab5c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/aws.js.map @@ -0,0 +1 @@ +{"version":3,"file":"aws.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/aws.ts"],"names":[],"mappings":";;;AAAA,yFAAqF;AAGrF;;GAEG;AACI,KAAK,UAAU,kBAAkB,CAAC,YAA0B;IACjE,MAAM,kBAAkB,GAAG,IAAI,oDAAwB,EAAE,CAAC;IAE1D,8FAA8F;IAC9F,2FAA2F;IAC3F,0EAA0E;IAC1E,MAAM,EACJ,eAAe,GAAG,EAAE,EACpB,WAAW,GAAG,EAAE,EAChB,KAAK,EACN,GAAG,MAAM,kBAAkB,CAAC,cAAc,EAAE,CAAC;IAC9C,MAAM,GAAG,GAAqC;QAC5C,eAAe,EAAE,eAAe;QAChC,WAAW,EAAE,WAAW;KACzB,CAAC;IACF,4FAA4F;IAC5F,0DAA0D;IAC1D,KAAK,IAAI,IAAI,IAAI,CAAC,GAAG,CAAC,YAAY,GAAG,KAAK,CAAC,CAAC;IAE5C,OAAO,EAAE,GAAG,YAAY,EAAE,GAAG,EAAE,CAAC;AAClC,CAAC;AApBD,gDAoBC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/azure.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/azure.js new file mode 100644 index 000000000..cf0b69137 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/azure.js @@ -0,0 +1,117 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.loadAzureCredentials = exports.fetchAzureKMSToken = exports.prepareRequest = exports.tokenCache = exports.AzureCredentialCache = void 0; +const errors_1 = require("../errors"); +const utils_1 = require("./utils"); +const MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS = 6000; +/** + * @internal + */ +class AzureCredentialCache { + constructor() { + this.cachedToken = null; + } + async getToken() { + if (this.cachedToken == null || this.needsRefresh(this.cachedToken)) { + this.cachedToken = await this._getToken(); + } + return { accessToken: this.cachedToken.accessToken }; + } + needsRefresh(token) { + const timeUntilExpirationMS = token.expiresOnTimestamp - Date.now(); + return timeUntilExpirationMS <= MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS; + } + /** + * exposed for testing + */ + resetCache() { + this.cachedToken = null; + } + /** + * exposed for testing + */ + _getToken() { + return fetchAzureKMSToken(); + } +} +exports.AzureCredentialCache = AzureCredentialCache; +/** @internal */ +exports.tokenCache = new AzureCredentialCache(); +/** @internal */ +async function parseResponse(response) { + const { status, body: rawBody } = response; + const body = (() => { + try { + return JSON.parse(rawBody); + } + catch { + throw new errors_1.MongoCryptAzureKMSRequestError('Malformed JSON body in GET request.'); + } + })(); + if (status !== 200) { + throw new errors_1.MongoCryptAzureKMSRequestError('Unable to complete request.', body); + } + if (!body.access_token) { + throw new errors_1.MongoCryptAzureKMSRequestError('Malformed response body - missing field `access_token`.'); + } + if (!body.expires_in) { + throw new errors_1.MongoCryptAzureKMSRequestError('Malformed response body - missing field `expires_in`.'); + } + const expiresInMS = Number(body.expires_in) * 1000; + if (Number.isNaN(expiresInMS)) { + throw new errors_1.MongoCryptAzureKMSRequestError('Malformed response body - unable to parse int from `expires_in` field.'); + } + return { + accessToken: body.access_token, + expiresOnTimestamp: Date.now() + expiresInMS + }; +} +/** + * @internal + * + * parses any options provided by prose tests to `fetchAzureKMSToken` and merges them with + * the default values for headers and the request url. + */ +function prepareRequest(options) { + const url = new URL(options.url?.toString() ?? 'http://169.254.169.254/metadata/identity/oauth2/token'); + url.searchParams.append('api-version', '2018-02-01'); + url.searchParams.append('resource', 'https://vault.azure.net'); + const headers = { ...options.headers, 'Content-Type': 'application/json', Metadata: true }; + return { headers, url }; +} +exports.prepareRequest = prepareRequest; +/** + * @internal + * + * `AzureKMSRequestOptions` allows prose tests to modify the http request sent to the idms + * servers. This is required to simulate different server conditions. No options are expected to + * be set outside of tests. + * + * exposed for CSFLE + * [prose test 18](https://github.com/mongodb/specifications/tree/master/source/client-side-encryption/tests#azure-imds-credentials) + */ +async function fetchAzureKMSToken(options = {}) { + const { headers, url } = prepareRequest(options); + try { + const response = await (0, utils_1.get)(url, { headers }); + return await parseResponse(response); + } + catch (error) { + if (error instanceof errors_1.MongoCryptKMSRequestNetworkTimeoutError) { + throw new errors_1.MongoCryptAzureKMSRequestError(`[Azure KMS] ${error.message}`); + } + throw error; + } +} +exports.fetchAzureKMSToken = fetchAzureKMSToken; +/** + * @internal + * + * @throws Will reject with a `MongoCryptError` if the http request fails or the http response is malformed. + */ +async function loadAzureCredentials(kmsProviders) { + const azure = await exports.tokenCache.getToken(); + return { ...kmsProviders, azure }; +} +exports.loadAzureCredentials = loadAzureCredentials; 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+Object.defineProperty(exports, "__esModule", { value: true }); +exports.loadGCPCredentials = void 0; +const deps_1 = require("../../deps"); +/** @internal */ +async function loadGCPCredentials(kmsProviders) { + const gcpMetadata = (0, deps_1.getGcpMetadata)(); + if ('kModuleError' in gcpMetadata) { + return kmsProviders; + } + const { access_token: accessToken } = await gcpMetadata.instance({ + property: 'service-accounts/default/token' + }); + return { ...kmsProviders, gcp: { accessToken } }; +} +exports.loadGCPCredentials = loadGCPCredentials; +//# sourceMappingURL=gcp.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js.map new file mode 100644 index 000000000..23b4106b5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/gcp.js.map @@ -0,0 +1 @@ +{"version":3,"file":"gcp.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/gcp.ts"],"names":[],"mappings":";;;AAAA,qCAA4C;AAG5C,gBAAgB;AACT,KAAK,UAAU,kBAAkB,CAAC,YAA0B;IACjE,MAAM,WAAW,GAAG,IAAA,qBAAc,GAAE,CAAC;IAErC,IAAI,cAAc,IAAI,WAAW,EAAE;QACjC,OAAO,YAAY,CAAC;KACrB;IAED,MAAM,EAAE,YAAY,EAAE,WAAW,EAAE,GAAG,MAAM,WAAW,CAAC,QAAQ,CAA2B;QACzF,QAAQ,EAAE,gCAAgC;KAC3C,CAAC,CAAC;IACH,OAAO,EAAE,GAAG,YAAY,EAAE,GAAG,EAAE,EAAE,WAAW,EAAE,EAAE,CAAC;AACnD,CAAC;AAXD,gDAWC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/index.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/index.js new file mode 100644 index 000000000..f6bebbae3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/index.js @@ -0,0 +1,44 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.refreshKMSCredentials = exports.isEmptyCredentials = void 0; +const aws_1 = require("./aws"); +const azure_1 = require("./azure"); +const gcp_1 = require("./gcp"); +/** + * Auto credential fetching should only occur when the provider is defined on the kmsProviders map + * and the settings are an empty object. + * + * This is distinct from a nullish provider key. + * + * @internal - exposed for testing purposes only + */ +function isEmptyCredentials(providerName, kmsProviders) { + const provider = kmsProviders[providerName]; + if (provider == null) { + return false; + } + return typeof provider === 'object' && Object.keys(provider).length === 0; +} +exports.isEmptyCredentials = isEmptyCredentials; +/** + * Load cloud provider credentials for the user provided KMS providers. + * Credentials will only attempt to get loaded if they do not exist + * and no existing credentials will get overwritten. + * + * @internal + */ +async function refreshKMSCredentials(kmsProviders) { + let finalKMSProviders = kmsProviders; + if (isEmptyCredentials('aws', kmsProviders)) { + finalKMSProviders = await (0, aws_1.loadAWSCredentials)(finalKMSProviders); + } + if (isEmptyCredentials('gcp', kmsProviders)) { + finalKMSProviders = await (0, gcp_1.loadGCPCredentials)(finalKMSProviders); + } + if (isEmptyCredentials('azure', kmsProviders)) { + finalKMSProviders = await (0, azure_1.loadAzureCredentials)(finalKMSProviders); + } + return finalKMSProviders; +} +exports.refreshKMSCredentials = refreshKMSCredentials; +//# sourceMappingURL=index.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/index.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/index.js.map new file mode 100644 index 000000000..f5aad1f58 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/index.js.map @@ -0,0 +1 @@ +{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/index.ts"],"names":[],"mappings":";;;AAAA,+BAA2C;AAC3C,mCAA+C;AAC/C,+BAA2C;AA4H3C;;;;;;;GAOG;AACH,SAAgB,kBAAkB,CAChC,YAA6C,EAC7C,YAA0B;IAE1B,MAAM,QAAQ,GAAG,YAAY,CAAC,YAAY,CAAC,CAAC;IAC5C,IAAI,QAAQ,IAAI,IAAI,EAAE;QACpB,OAAO,KAAK,CAAC;KACd;IACD,OAAO,OAAO,QAAQ,KAAK,QAAQ,IAAI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,MAAM,KAAK,CAAC,CAAC;AAC5E,CAAC;AATD,gDASC;AAED;;;;;;GAMG;AACI,KAAK,UAAU,qBAAqB,CAAC,YAA0B;IACpE,IAAI,iBAAiB,GAAG,YAAY,CAAC;IAErC,IAAI,kBAAkB,CAAC,KAAK,EAAE,YAAY,CAAC,EAAE;QAC3C,iBAAiB,GAAG,MAAM,IAAA,wBAAkB,EAAC,iBAAiB,CAAC,CAAC;KACjE;IAED,IAAI,kBAAkB,CAAC,KAAK,EAAE,YAAY,CAAC,EAAE;QAC3C,iBAAiB,GAAG,MAAM,IAAA,wBAAkB,EAAC,iBAAiB,CAAC,CAAC;KACjE;IAED,IAAI,kBAAkB,CAAC,OAAO,EAAE,YAAY,CAAC,EAAE;QAC7C,iBAAiB,GAAG,MAAM,IAAA,4BAAoB,EAAC,iBAAiB,CAAC,CAAC;KACnE;IACD,OAAO,iBAAiB,CAAC;AAC3B,CAAC;AAfD,sDAeC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/utils.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/utils.js new file mode 100644 index 000000000..c75b9692f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/utils.js @@ -0,0 +1,35 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.get = void 0; +const http = require("http"); +const timers_1 = require("timers"); +const errors_1 = require("../errors"); +/** + * @internal + */ +function get(url, options = {}) { + return new Promise((resolve, reject) => { + /* eslint-disable prefer-const */ + let timeoutId; + const request = http + .get(url, options, response => { + response.setEncoding('utf8'); + let body = ''; + response.on('data', chunk => (body += chunk)); + response.on('end', () => { + (0, timers_1.clearTimeout)(timeoutId); + resolve({ status: response.statusCode, body }); + }); + }) + .on('error', error => { + (0, timers_1.clearTimeout)(timeoutId); + reject(error); + }) + .end(); + timeoutId = (0, timers_1.setTimeout)(() => { + request.destroy(new errors_1.MongoCryptKMSRequestNetworkTimeoutError(`request timed out after 10 seconds`)); + }, 10000); + }); +} +exports.get = get; +//# sourceMappingURL=utils.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/utils.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/utils.js.map new file mode 100644 index 000000000..e3aea6fd4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/providers/utils.js.map @@ -0,0 +1 @@ +{"version":3,"file":"utils.js","sourceRoot":"","sources":["../../../src/client-side-encryption/providers/utils.ts"],"names":[],"mappings":";;;AAAA,6BAA6B;AAC7B,mCAAkD;AAElD,sCAAoE;AAEpE;;GAEG;AACH,SAAgB,GAAG,CACjB,GAAiB,EACjB,UAA+B,EAAE;IAEjC,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;QACrC,iCAAiC;QACjC,IAAI,SAAyB,CAAC;QAC9B,MAAM,OAAO,GAAG,IAAI;aACjB,GAAG,CAAC,GAAG,EAAE,OAAO,EAAE,QAAQ,CAAC,EAAE;YAC5B,QAAQ,CAAC,WAAW,CAAC,MAAM,CAAC,CAAC;YAC7B,IAAI,IAAI,GAAG,EAAE,CAAC;YACd,QAAQ,CAAC,EAAE,CAAC,MAAM,EAAE,KAAK,CAAC,EAAE,CAAC,CAAC,IAAI,IAAI,KAAK,CAAC,CAAC,CAAC;YAC9C,QAAQ,CAAC,EAAE,CAAC,KAAK,EAAE,GAAG,EAAE;gBACtB,IAAA,qBAAY,EAAC,SAAS,CAAC,CAAC;gBACxB,OAAO,CAAC,EAAE,MAAM,EAAE,QAAQ,CAAC,UAAU,EAAE,IAAI,EAAE,CAAC,CAAC;YACjD,CAAC,CAAC,CAAC;QACL,CAAC,CAAC;aACD,EAAE,CAAC,OAAO,EAAE,KAAK,CAAC,EAAE;YACnB,IAAA,qBAAY,EAAC,SAAS,CAAC,CAAC;YACxB,MAAM,CAAC,KAAK,CAAC,CAAC;QAChB,CAAC,CAAC;aACD,GAAG,EAAE,CAAC;QACT,SAAS,GAAG,IAAA,mBAAU,EAAC,GAAG,EAAE;YAC1B,OAAO,CAAC,OAAO,CACb,IAAI,gDAAuC,CAAC,oCAAoC,CAAC,CAClF,CAAC;QACJ,CAAC,EAAE,KAAK,CAAC,CAAC;IACZ,CAAC,CAAC,CAAC;AACL,CAAC;AA5BD,kBA4BC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/state_machine.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/state_machine.js new file mode 100644 index 000000000..74a3a8760 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/state_machine.js @@ -0,0 +1,369 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.StateMachine = void 0; +const fs = require("fs/promises"); +const net = require("net"); +const tls = require("tls"); +const bson_1 = require("../bson"); +const deps_1 = require("../deps"); +const utils_1 = require("../utils"); +const errors_1 = require("./errors"); +let socks = null; +function loadSocks() { + if (socks == null) { + const socksImport = (0, deps_1.getSocks)(); + if ('kModuleError' in socksImport) { + throw socksImport.kModuleError; + } + socks = socksImport; + } + return socks; +} +// libmongocrypt states +const MONGOCRYPT_CTX_ERROR = 0; +const MONGOCRYPT_CTX_NEED_MONGO_COLLINFO = 1; +const MONGOCRYPT_CTX_NEED_MONGO_MARKINGS = 2; +const MONGOCRYPT_CTX_NEED_MONGO_KEYS = 3; +const MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS = 7; +const MONGOCRYPT_CTX_NEED_KMS = 4; +const MONGOCRYPT_CTX_READY = 5; +const MONGOCRYPT_CTX_DONE = 6; +const HTTPS_PORT = 443; +const stateToString = new Map([ + [MONGOCRYPT_CTX_ERROR, 'MONGOCRYPT_CTX_ERROR'], + [MONGOCRYPT_CTX_NEED_MONGO_COLLINFO, 'MONGOCRYPT_CTX_NEED_MONGO_COLLINFO'], + [MONGOCRYPT_CTX_NEED_MONGO_MARKINGS, 'MONGOCRYPT_CTX_NEED_MONGO_MARKINGS'], + [MONGOCRYPT_CTX_NEED_MONGO_KEYS, 'MONGOCRYPT_CTX_NEED_MONGO_KEYS'], + [MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS, 'MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS'], + [MONGOCRYPT_CTX_NEED_KMS, 'MONGOCRYPT_CTX_NEED_KMS'], + [MONGOCRYPT_CTX_READY, 'MONGOCRYPT_CTX_READY'], + [MONGOCRYPT_CTX_DONE, 'MONGOCRYPT_CTX_DONE'] +]); +const INSECURE_TLS_OPTIONS = [ + 'tlsInsecure', + 'tlsAllowInvalidCertificates', + 'tlsAllowInvalidHostnames', + // These options are disallowed by the spec, so we explicitly filter them out if provided, even + // though the StateMachine does not declare support for these options. + 'tlsDisableOCSPEndpointCheck', + 'tlsDisableCertificateRevocationCheck' +]; +/** + * Helper function for logging. Enabled by setting the environment flag MONGODB_CRYPT_DEBUG. + * @param msg - Anything you want to be logged. + */ +function debug(msg) { + if (process.env.MONGODB_CRYPT_DEBUG) { + // eslint-disable-next-line no-console + console.error(msg); + } +} +/** + * @internal + * An internal class that executes across a MongoCryptContext until either + * a finishing state or an error is reached. Do not instantiate directly. + */ +class StateMachine { + constructor(options, bsonOptions = (0, bson_1.pluckBSONSerializeOptions)(options)) { + this.options = options; + this.bsonOptions = bsonOptions; + } + /** + * Executes the state machine according to the specification + */ + async execute(executor, context) { + const keyVaultNamespace = executor._keyVaultNamespace; + const keyVaultClient = executor._keyVaultClient; + const metaDataClient = executor._metaDataClient; + const mongocryptdClient = executor._mongocryptdClient; + const mongocryptdManager = executor._mongocryptdManager; + let result = null; + while (context.state !== MONGOCRYPT_CTX_DONE && context.state !== MONGOCRYPT_CTX_ERROR) { + debug(`[context#${context.id}] ${stateToString.get(context.state) || context.state}`); + switch (context.state) { + case MONGOCRYPT_CTX_NEED_MONGO_COLLINFO: { + const filter = (0, bson_1.deserialize)(context.nextMongoOperation()); + if (!metaDataClient) { + throw new errors_1.MongoCryptError('unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_COLLINFO but metadata client is undefined'); + } + const collInfo = await this.fetchCollectionInfo(metaDataClient, context.ns, filter); + if (collInfo) { + context.addMongoOperationResponse(collInfo); + } + context.finishMongoOperation(); + break; + } + case MONGOCRYPT_CTX_NEED_MONGO_MARKINGS: { + const command = context.nextMongoOperation(); + if (!mongocryptdClient) { + throw new errors_1.MongoCryptError('unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_MARKINGS but mongocryptdClient is undefined'); + } + // When we are using the shared library, we don't have a mongocryptd manager. + const markedCommand = mongocryptdManager + ? await mongocryptdManager.withRespawn(this.markCommand.bind(this, mongocryptdClient, context.ns, command)) + : await this.markCommand(mongocryptdClient, context.ns, command); + context.addMongoOperationResponse(markedCommand); + context.finishMongoOperation(); + break; + } + case MONGOCRYPT_CTX_NEED_MONGO_KEYS: { + const filter = context.nextMongoOperation(); + const keys = await this.fetchKeys(keyVaultClient, keyVaultNamespace, filter); + if (keys.length === 0) { + // This is kind of a hack. For `rewrapManyDataKey`, we have tests that + // guarantee that when there are no matching keys, `rewrapManyDataKey` returns + // nothing. We also have tests for auto encryption that guarantee for `encrypt` + // we return an error when there are no matching keys. This error is generated in + // subsequent iterations of the state machine. + // Some apis (`encrypt`) throw if there are no filter matches and others (`rewrapManyDataKey`) + // do not. We set the result manually here, and let the state machine continue. `libmongocrypt` + // will inform us if we need to error by setting the state to `MONGOCRYPT_CTX_ERROR` but + // otherwise we'll return `{ v: [] }`. + result = { v: [] }; + } + for await (const key of keys) { + context.addMongoOperationResponse((0, bson_1.serialize)(key)); + } + context.finishMongoOperation(); + break; + } + case MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS: { + const kmsProviders = await executor.askForKMSCredentials(); + context.provideKMSProviders((0, bson_1.serialize)(kmsProviders)); + break; + } + case MONGOCRYPT_CTX_NEED_KMS: { + const requests = Array.from(this.requests(context)); + await Promise.all(requests); + context.finishKMSRequests(); + break; + } + case MONGOCRYPT_CTX_READY: { + const finalizedContext = context.finalize(); + // @ts-expect-error finalize can change the state, check for error + if (context.state === MONGOCRYPT_CTX_ERROR) { + const message = context.status.message || 'Finalization error'; + throw new errors_1.MongoCryptError(message); + } + result = (0, bson_1.deserialize)(finalizedContext, this.options); + break; + } + default: + throw new errors_1.MongoCryptError(`Unknown state: ${context.state}`); + } + } + if (context.state === MONGOCRYPT_CTX_ERROR || result == null) { + const message = context.status.message; + if (!message) { + debug(`unidentifiable error in MongoCrypt - received an error status from \`libmongocrypt\` but received no error message.`); + } + throw new errors_1.MongoCryptError(message ?? + 'unidentifiable error in MongoCrypt - received an error status from `libmongocrypt` but received no error message.'); + } + return result; + } + /** + * Handles the request to the KMS service. Exposed for testing purposes. Do not directly invoke. + * @param kmsContext - A C++ KMS context returned from the bindings + * @returns A promise that resolves when the KMS reply has be fully parsed + */ + async kmsRequest(request) { + const parsedUrl = request.endpoint.split(':'); + const port = parsedUrl[1] != null ? Number.parseInt(parsedUrl[1], 10) : HTTPS_PORT; + const options = { + host: parsedUrl[0], + servername: parsedUrl[0], + port + }; + const message = request.message; + const buffer = new utils_1.BufferPool(); + const netSocket = new net.Socket(); + let socket; + function destroySockets() { + for (const sock of [socket, netSocket]) { + if (sock) { + sock.removeAllListeners(); + sock.destroy(); + } + } + } + function ontimeout() { + return new errors_1.MongoCryptError('KMS request timed out'); + } + function onerror(cause) { + return new errors_1.MongoCryptError('KMS request failed', { cause }); + } + function onclose() { + return new errors_1.MongoCryptError('KMS request closed'); + } + const tlsOptions = this.options.tlsOptions; + if (tlsOptions) { + const kmsProvider = request.kmsProvider; + const providerTlsOptions = tlsOptions[kmsProvider]; + if (providerTlsOptions) { + const error = this.validateTlsOptions(kmsProvider, providerTlsOptions); + if (error) { + throw error; + } + try { + await this.setTlsOptions(providerTlsOptions, options); + } + catch (err) { + throw onerror(err); + } + } + } + const { promise: willConnect, reject: rejectOnNetSocketError, resolve: resolveOnNetSocketConnect } = (0, utils_1.promiseWithResolvers)(); + netSocket + .once('timeout', () => rejectOnNetSocketError(ontimeout())) + .once('error', err => rejectOnNetSocketError(onerror(err))) + .once('close', () => rejectOnNetSocketError(onclose())) + .once('connect', () => resolveOnNetSocketConnect()); + try { + if (this.options.proxyOptions && this.options.proxyOptions.proxyHost) { + netSocket.connect({ + host: this.options.proxyOptions.proxyHost, + port: this.options.proxyOptions.proxyPort || 1080 + }); + await willConnect; + try { + socks ??= loadSocks(); + options.socket = (await socks.SocksClient.createConnection({ + existing_socket: netSocket, + command: 'connect', + destination: { host: options.host, port: options.port }, + proxy: { + // host and port are ignored because we pass existing_socket + host: 'iLoveJavaScript', + port: 0, + type: 5, + userId: this.options.proxyOptions.proxyUsername, + password: this.options.proxyOptions.proxyPassword + } + })).socket; + } + catch (err) { + throw onerror(err); + } + } + socket = tls.connect(options, () => { + socket.write(message); + }); + const { promise: willResolveKmsRequest, reject: rejectOnTlsSocketError, resolve } = (0, utils_1.promiseWithResolvers)(); + socket + .once('timeout', () => rejectOnTlsSocketError(ontimeout())) + .once('error', err => rejectOnTlsSocketError(onerror(err))) + .once('close', () => rejectOnTlsSocketError(onclose())) + .on('data', data => { + buffer.append(data); + while (request.bytesNeeded > 0 && buffer.length) { + const bytesNeeded = Math.min(request.bytesNeeded, buffer.length); + request.addResponse(buffer.read(bytesNeeded)); + } + if (request.bytesNeeded <= 0) { + resolve(); + } + }); + await willResolveKmsRequest; + } + finally { + // There's no need for any more activity on this socket at this point. + destroySockets(); + } + } + *requests(context) { + for (let request = context.nextKMSRequest(); request != null; request = context.nextKMSRequest()) { + yield this.kmsRequest(request); + } + } + /** + * Validates the provided TLS options are secure. + * + * @param kmsProvider - The KMS provider name. + * @param tlsOptions - The client TLS options for the provider. + * + * @returns An error if any option is invalid. + */ + validateTlsOptions(kmsProvider, tlsOptions) { + const tlsOptionNames = Object.keys(tlsOptions); + for (const option of INSECURE_TLS_OPTIONS) { + if (tlsOptionNames.includes(option)) { + return new errors_1.MongoCryptError(`Insecure TLS options prohibited for ${kmsProvider}: ${option}`); + } + } + } + /** + * Sets only the valid secure TLS options. + * + * @param tlsOptions - The client TLS options for the provider. + * @param options - The existing connection options. + */ + async setTlsOptions(tlsOptions, options) { + if (tlsOptions.tlsCertificateKeyFile) { + const cert = await fs.readFile(tlsOptions.tlsCertificateKeyFile); + options.cert = options.key = cert; + } + if (tlsOptions.tlsCAFile) { + options.ca = await fs.readFile(tlsOptions.tlsCAFile); + } + if (tlsOptions.tlsCertificateKeyFilePassword) { + options.passphrase = tlsOptions.tlsCertificateKeyFilePassword; + } + } + /** + * Fetches collection info for a provided namespace, when libmongocrypt + * enters the `MONGOCRYPT_CTX_NEED_MONGO_COLLINFO` state. The result is + * used to inform libmongocrypt of the schema associated with this + * namespace. Exposed for testing purposes. Do not directly invoke. + * + * @param client - A MongoClient connected to the topology + * @param ns - The namespace to list collections from + * @param filter - A filter for the listCollections command + * @param callback - Invoked with the info of the requested collection, or with an error + */ + async fetchCollectionInfo(client, ns, filter) { + const { db } = utils_1.MongoDBCollectionNamespace.fromString(ns); + const collections = await client + .db(db) + .listCollections(filter, { + promoteLongs: false, + promoteValues: false + }) + .toArray(); + const info = collections.length > 0 ? (0, bson_1.serialize)(collections[0]) : null; + return info; + } + /** + * Calls to the mongocryptd to provide markings for a command. + * Exposed for testing purposes. Do not directly invoke. + * @param client - A MongoClient connected to a mongocryptd + * @param ns - The namespace (database.collection) the command is being executed on + * @param command - The command to execute. + * @param callback - Invoked with the serialized and marked bson command, or with an error + */ + async markCommand(client, ns, command) { + const options = { promoteLongs: false, promoteValues: false }; + const { db } = utils_1.MongoDBCollectionNamespace.fromString(ns); + const rawCommand = (0, bson_1.deserialize)(command, options); + const response = await client.db(db).command(rawCommand, options); + return (0, bson_1.serialize)(response, this.bsonOptions); + } + /** + * Requests keys from the keyVault collection on the topology. + * Exposed for testing purposes. Do not directly invoke. + * @param client - A MongoClient connected to the topology + * @param keyVaultNamespace - The namespace (database.collection) of the keyVault Collection + * @param filter - The filter for the find query against the keyVault Collection + * @param callback - Invoked with the found keys, or with an error + */ + fetchKeys(client, keyVaultNamespace, filter) { + const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(keyVaultNamespace); + return client + .db(dbName) + .collection(collectionName, { readConcern: { level: 'majority' } }) + .find((0, bson_1.deserialize)(filter)) + .toArray(); + } +} +exports.StateMachine = StateMachine; +//# sourceMappingURL=state_machine.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/state_machine.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/state_machine.js.map new file mode 100644 index 000000000..1aef49f98 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/client-side-encryption/state_machine.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/auth_provider.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/auth_provider.js new file mode 100644 index 000000000..99cbf72aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/auth_provider.js @@ -0,0 +1,51 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AuthProvider = exports.AuthContext = void 0; +const error_1 = require("../../error"); +/** + * Context used during authentication + * @internal + */ +class AuthContext { + constructor(connection, credentials, options) { + /** If the context is for reauthentication. */ + this.reauthenticating = false; + this.connection = connection; + this.credentials = credentials; + this.options = options; + } +} +exports.AuthContext = AuthContext; +/** + * Provider used during authentication. + * @internal + */ +class AuthProvider { + /** + * Prepare the handshake document before the initial handshake. + * + * @param handshakeDoc - The document used for the initial handshake on a connection + * @param authContext - Context for authentication flow + */ + async prepare(handshakeDoc, _authContext) { + return handshakeDoc; + } + /** + * Reauthenticate. + * @param context - The shared auth context. + */ + async reauth(context) { + if (context.reauthenticating) { + throw new error_1.MongoRuntimeError('Reauthentication already in progress.'); + } + try { + context.reauthenticating = true; + await this.auth(context); + } + finally { + context.reauthenticating = false; + } + } +} +exports.AuthProvider = AuthProvider; +//# sourceMappingURL=auth_provider.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/auth_provider.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/auth_provider.js.map new file mode 100644 index 000000000..caa3981ae --- /dev/null +++ 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a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js new file mode 100644 index 000000000..bc839b57f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js @@ -0,0 +1,140 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.LegacyAWSTemporaryCredentialProvider = exports.AWSSDKCredentialProvider = exports.AWSTemporaryCredentialProvider = void 0; +const deps_1 = require("../../deps"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const AWS_RELATIVE_URI = 'http://169.254.170.2'; +const AWS_EC2_URI = 'http://169.254.169.254'; +const AWS_EC2_PATH = '/latest/meta-data/iam/security-credentials'; +/** + * @internal + * + * Fetches temporary AWS credentials. + */ +class AWSTemporaryCredentialProvider { + static get awsSDK() { + AWSTemporaryCredentialProvider._awsSDK ??= (0, deps_1.getAwsCredentialProvider)(); + return AWSTemporaryCredentialProvider._awsSDK; + } + static get isAWSSDKInstalled() { + return !('kModuleError' in AWSTemporaryCredentialProvider.awsSDK); + } +} +exports.AWSTemporaryCredentialProvider = AWSTemporaryCredentialProvider; +/** @internal */ +class AWSSDKCredentialProvider extends AWSTemporaryCredentialProvider { + /** + * The AWS SDK caches credentials automatically and handles refresh when the credentials have expired. + * To ensure this occurs, we need to cache the `provider` returned by the AWS sdk and re-use it when fetching credentials. + */ + get provider() { + if ('kModuleError' in AWSTemporaryCredentialProvider.awsSDK) { + throw AWSTemporaryCredentialProvider.awsSDK.kModuleError; + } + if (this._provider) { + return this._provider; + } + let { AWS_STS_REGIONAL_ENDPOINTS = '', AWS_REGION = '' } = process.env; + AWS_STS_REGIONAL_ENDPOINTS = AWS_STS_REGIONAL_ENDPOINTS.toLowerCase(); + AWS_REGION = AWS_REGION.toLowerCase(); + /** The option setting should work only for users who have explicit settings in their environment, the driver should not encode "defaults" */ + const awsRegionSettingsExist = AWS_REGION.length !== 0 && AWS_STS_REGIONAL_ENDPOINTS.length !== 0; + /** + * The following regions use the global AWS STS endpoint, sts.amazonaws.com, by default + * https://docs.aws.amazon.com/sdkref/latest/guide/feature-sts-regionalized-endpoints.html + */ + const LEGACY_REGIONS = new Set([ + 'ap-northeast-1', + 'ap-south-1', + 'ap-southeast-1', + 'ap-southeast-2', + 'aws-global', + 'ca-central-1', + 'eu-central-1', + 'eu-north-1', + 'eu-west-1', + 'eu-west-2', + 'eu-west-3', + 'sa-east-1', + 'us-east-1', + 'us-east-2', + 'us-west-1', + 'us-west-2' + ]); + /** + * If AWS_STS_REGIONAL_ENDPOINTS is set to regional, users are opting into the new behavior of respecting the region settings + * + * If AWS_STS_REGIONAL_ENDPOINTS is set to legacy, then "old" regions need to keep using the global setting. + * Technically the SDK gets this wrong, it reaches out to 'sts.us-east-1.amazonaws.com' when it should be 'sts.amazonaws.com'. + * That is not our bug to fix here. We leave that up to the SDK. + */ + const useRegionalSts = AWS_STS_REGIONAL_ENDPOINTS === 'regional' || + (AWS_STS_REGIONAL_ENDPOINTS === 'legacy' && !LEGACY_REGIONS.has(AWS_REGION)); + this._provider = + awsRegionSettingsExist && useRegionalSts + ? AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain({ + clientConfig: { region: AWS_REGION } + }) + : AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain(); + return this._provider; + } + async getCredentials() { + /* + * Creates a credential provider that will attempt to find credentials from the + * following sources (listed in order of precedence): + * + * - Environment variables exposed via process.env + * - SSO credentials from token cache + * - Web identity token credentials + * - Shared credentials and config ini files + * - The EC2/ECS Instance Metadata Service + */ + try { + const creds = await this.provider(); + return { + AccessKeyId: creds.accessKeyId, + SecretAccessKey: creds.secretAccessKey, + Token: creds.sessionToken, + Expiration: creds.expiration + }; + } + catch (error) { + throw new error_1.MongoAWSError(error.message, { cause: error }); + } + } +} +exports.AWSSDKCredentialProvider = AWSSDKCredentialProvider; +/** + * @internal + * Fetches credentials manually (without the AWS SDK), as outlined in the [Obtaining Credentials](https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#obtaining-credentials) + * section of the Auth spec. + */ +class LegacyAWSTemporaryCredentialProvider extends AWSTemporaryCredentialProvider { + async getCredentials() { + // If the environment variable AWS_CONTAINER_CREDENTIALS_RELATIVE_URI + // is set then drivers MUST assume that it was set by an AWS ECS agent + if (process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI) { + return await (0, utils_1.request)(`${AWS_RELATIVE_URI}${process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI}`); + } + // Otherwise assume we are on an EC2 instance + // get a token + const token = await (0, utils_1.request)(`${AWS_EC2_URI}/latest/api/token`, { + method: 'PUT', + json: false, + headers: { 'X-aws-ec2-metadata-token-ttl-seconds': 30 } + }); + // get role name + const roleName = await (0, utils_1.request)(`${AWS_EC2_URI}/${AWS_EC2_PATH}`, { + json: false, + headers: { 'X-aws-ec2-metadata-token': token } + }); + // get temp credentials + const creds = await (0, utils_1.request)(`${AWS_EC2_URI}/${AWS_EC2_PATH}/${roleName}`, { + headers: { 'X-aws-ec2-metadata-token': token } + }); + return creds; + } +} +exports.LegacyAWSTemporaryCredentialProvider = LegacyAWSTemporaryCredentialProvider; +//# sourceMappingURL=aws_temporary_credentials.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js.map new file mode 100644 index 000000000..32ce3d5b3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/aws_temporary_credentials.js.map @@ -0,0 +1 @@ +{"version":3,"file":"aws_temporary_credentials.js","sourceRoot":"","sources":["../../../src/cmap/auth/aws_temporary_credentials.ts"],"names":[],"mappings":";;;AAAA,qCAA2E;AAC3E,uCAA4C;AAC5C,uCAAsC;AAEtC,MAAM,gBAAgB,GAAG,sBAAsB,CAAC;AAChD,MAAM,WAAW,GAAG,wBAAwB,CAAC;AAC7C,MAAM,YAAY,GAAG,4CAA4C,CAAC;AAiBlE;;;;GAIG;AACH,MAAsB,8BAA8B;IAGxC,MAAM,KAAK,MAAM;QACzB,8BAA8B,CAAC,OAAO,KAAK,IAAA,+BAAwB,GAAE,CAAC;QACtE,OAAO,8BAA8B,CAAC,OAAO,CAAC;IAChD,CAAC;IAED,MAAM,KAAK,iBAAiB;QAC1B,OAAO,CAAC,CAAC,cAAc,IAAI,8BAA8B,CAAC,MAAM,CAAC,CAAC;IACpE,CAAC;CACF;AAXD,wEAWC;AAED,gBAAgB;AAChB,MAAa,wBAAyB,SAAQ,8BAA8B;IAE1E;;;OAGG;IACH,IAAY,QAAQ;QAClB,IAAI,cAAc,IAAI,8BAA8B,CAAC,MAAM,EAAE;YAC3D,MAAM,8BAA8B,CAAC,MAAM,CAAC,YAAY,CAAC;SAC1D;QACD,IAAI,IAAI,CAAC,SAAS,EAAE;YAClB,OAAO,IAAI,CAAC,SAAS,CAAC;SACvB;QACD,IAAI,EAAE,0BAA0B,GAAG,EAAE,EAAE,UAAU,GAAG,EAAE,EAAE,GAAG,OAAO,CAAC,GAAG,CAAC;QACvE,0BAA0B,GAAG,0BAA0B,CAAC,WAAW,EAAE,CAAC;QACtE,UAAU,GAAG,UAAU,CAAC,WAAW,EAAE,CAAC;QAEtC,6IAA6I;QAC7I,MAAM,sBAAsB,GAC1B,UAAU,CAAC,MAAM,KAAK,CAAC,IAAI,0BAA0B,CAAC,MAAM,KAAK,CAAC,CAAC;QAErE;;;WAGG;QACH,MAAM,cAAc,GAAG,IAAI,GAAG,CAAC;YAC7B,gBAAgB;YAChB,YAAY;YACZ,gBAAgB;YAChB,gBAAgB;YAChB,YAAY;YACZ,cAAc;YACd,cAAc;YACd,YAAY;YACZ,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;YACX,WAAW;SACZ,CAAC,CAAC;QACH;;;;;;WAMG;QACH,MAAM,cAAc,GAClB,0BAA0B,KAAK,UAAU;YACzC,CAAC,0BAA0B,KAAK,QAAQ,IAAI,CAAC,cAAc,CAAC,GAAG,CAAC,UAAU,CAAC,CAAC,CAAC;QAE/E,IAAI,CAAC,SAAS;YACZ,sBAAsB,IAAI,cAAc;gBACtC,CAAC,CAAC,8BAA8B,CAAC,MAAM,CAAC,qBAAqB,CAAC;oBAC1D,YAAY,EAAE,EAAE,MAAM,EAAE,UAAU,EAAE;iBACrC,CAAC;gBACJ,CAAC,CAAC,8BAA8B,CAAC,MAAM,CAAC,qBAAqB,EAAE,CAAC;QAEpE,OAAO,IAAI,CAAC,SAAS,CAAC;IACxB,CAAC;IAEQ,KAAK,CAAC,cAAc;QAC3B;;;;;;;;;WASG;QACH,IAAI;YACF,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,QAAQ,EAAE,CAAC;YACpC,OAAO;gBACL,WAAW,EAAE,KAAK,CAAC,WAAW;gBAC9B,eAAe,EAAE,KAAK,CAAC,eAAe;gBACtC,KAAK,EAAE,KAAK,CAAC,YAAY;gBACzB,UAAU,EAAE,KAAK,CAAC,UAAU;aAC7B,CAAC;SACH;QAAC,OAAO,KAAK,EAAE;YACd,MAAM,IAAI,qBAAa,CAAC,KAAK,CAAC,OAAO,EAAE,EAAE,KAAK,EAAE,KAAK,EAAE,CAAC,CAAC;SAC1D;IACH,CAAC;CACF;AAvFD,4DAuFC;AAED;;;;GAIG;AACH,MAAa,oCAAqC,SAAQ,8BAA8B;IAC7E,KAAK,CAAC,cAAc;QAC3B,qEAAqE;QACrE,sEAAsE;QACtE,IAAI,OAAO,CAAC,GAAG,CAAC,sCAAsC,EAAE;YACtD,OAAO,MAAM,IAAA,eAAO,EAClB,GAAG,gBAAgB,GAAG,OAAO,CAAC,GAAG,CAAC,sCAAsC,EAAE,CAC3E,CAAC;SACH;QAED,6CAA6C;QAE7C,cAAc;QACd,MAAM,KAAK,GAAG,MAAM,IAAA,eAAO,EAAC,GAAG,WAAW,mBAAmB,EAAE;YAC7D,MAAM,EAAE,KAAK;YACb,IAAI,EAAE,KAAK;YACX,OAAO,EAAE,EAAE,sCAAsC,EAAE,EAAE,EAAE;SACxD,CAAC,CAAC;QAEH,gBAAgB;QAChB,MAAM,QAAQ,GAAG,MAAM,IAAA,eAAO,EAAC,GAAG,WAAW,IAAI,YAAY,EAAE,EAAE;YAC/D,IAAI,EAAE,KAAK;YACX,OAAO,EAAE,EAAE,0BAA0B,EAAE,KAAK,EAAE;SAC/C,CAAC,CAAC;QAEH,uBAAuB;QACvB,MAAM,KAAK,GAAG,MAAM,IAAA,eAAO,EAAC,GAAG,WAAW,IAAI,YAAY,IAAI,QAAQ,EAAE,EAAE;YACxE,OAAO,EAAE,EAAE,0BAA0B,EAAE,KAAK,EAAE;SAC/C,CAAC,CAAC;QAEH,OAAO,KAAK,CAAC;IACf,CAAC;CACF;AAhCD,oFAgCC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/gssapi.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/gssapi.js new file mode 100644 index 000000000..0776987cf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/gssapi.js @@ -0,0 +1,154 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.resolveCname = exports.performGSSAPICanonicalizeHostName = exports.GSSAPI = exports.GSSAPICanonicalizationValue = void 0; +const dns = require("dns"); +const deps_1 = require("../../deps"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const auth_provider_1 = require("./auth_provider"); +/** @public */ +exports.GSSAPICanonicalizationValue = Object.freeze({ + on: true, + off: false, + none: 'none', + forward: 'forward', + forwardAndReverse: 'forwardAndReverse' +}); +async function externalCommand(connection, command) { + const response = await connection.command((0, utils_1.ns)('$external.$cmd'), command); + return response; +} +let krb; +class GSSAPI extends auth_provider_1.AuthProvider { + async auth(authContext) { + const { connection, credentials } = authContext; + if (credentials == null) { + throw new error_1.MongoMissingCredentialsError('Credentials required for GSSAPI authentication'); + } + const { username } = credentials; + const client = await makeKerberosClient(authContext); + const payload = await client.step(''); + const saslStartResponse = await externalCommand(connection, saslStart(payload)); + const negotiatedPayload = await negotiate(client, 10, saslStartResponse.payload); + const saslContinueResponse = await externalCommand(connection, saslContinue(negotiatedPayload, saslStartResponse.conversationId)); + const finalizePayload = await finalize(client, username, saslContinueResponse.payload); + await externalCommand(connection, { + saslContinue: 1, + conversationId: saslContinueResponse.conversationId, + payload: finalizePayload + }); + } +} +exports.GSSAPI = GSSAPI; +async function makeKerberosClient(authContext) { + const { hostAddress } = authContext.options; + const { credentials } = authContext; + if (!hostAddress || typeof hostAddress.host !== 'string' || !credentials) { + throw new error_1.MongoInvalidArgumentError('Connection must have host and port and credentials defined.'); + } + loadKrb(); + if ('kModuleError' in krb) { + throw krb['kModuleError']; + } + const { initializeClient } = krb; + const { username, password } = credentials; + const mechanismProperties = credentials.mechanismProperties; + const serviceName = mechanismProperties.SERVICE_NAME ?? 'mongodb'; + const host = await performGSSAPICanonicalizeHostName(hostAddress.host, mechanismProperties); + const initOptions = {}; + if (password != null) { + // TODO(NODE-5139): These do not match the typescript options in initializeClient + Object.assign(initOptions, { user: username, password: password }); + } + const spnHost = mechanismProperties.SERVICE_HOST ?? host; + let spn = `${serviceName}${process.platform === 'win32' ? '/' : '@'}${spnHost}`; + if ('SERVICE_REALM' in mechanismProperties) { + spn = `${spn}@${mechanismProperties.SERVICE_REALM}`; + } + return await initializeClient(spn, initOptions); +} +function saslStart(payload) { + return { + saslStart: 1, + mechanism: 'GSSAPI', + payload, + autoAuthorize: 1 + }; +} +function saslContinue(payload, conversationId) { + return { + saslContinue: 1, + conversationId, + payload + }; +} +async function negotiate(client, retries, payload) { + try { + const response = await client.step(payload); + return response || ''; + } + catch (error) { + if (retries === 0) { + // Retries exhausted, raise error + throw error; + } + // Adjust number of retries and call step again + return await negotiate(client, retries - 1, payload); + } +} +async function finalize(client, user, payload) { + // GSS Client Unwrap + const response = await client.unwrap(payload); + return await client.wrap(response || '', { user }); +} +async function performGSSAPICanonicalizeHostName(host, mechanismProperties) { + const mode = mechanismProperties.CANONICALIZE_HOST_NAME; + if (!mode || mode === exports.GSSAPICanonicalizationValue.none) { + return host; + } + // If forward and reverse or true + if (mode === exports.GSSAPICanonicalizationValue.on || + mode === exports.GSSAPICanonicalizationValue.forwardAndReverse) { + // Perform the lookup of the ip address. + const { address } = await dns.promises.lookup(host); + try { + // Perform a reverse ptr lookup on the ip address. + const results = await dns.promises.resolvePtr(address); + // If the ptr did not error but had no results, return the host. + return results.length > 0 ? results[0] : host; + } + catch (error) { + // This can error as ptr records may not exist for all ips. In this case + // fallback to a cname lookup as dns.lookup() does not return the + // cname. + return await resolveCname(host); + } + } + else { + // The case for forward is just to resolve the cname as dns.lookup() + // will not return it. + return await resolveCname(host); + } +} +exports.performGSSAPICanonicalizeHostName = performGSSAPICanonicalizeHostName; +async function resolveCname(host) { + // Attempt to resolve the host name + try { + const results = await dns.promises.resolveCname(host); + // Get the first resolved host id + return results.length > 0 ? results[0] : host; + } + catch { + return host; + } +} +exports.resolveCname = resolveCname; +/** + * Load the Kerberos library. + */ +function loadKrb() { + if (!krb) { + krb = (0, deps_1.getKerberos)(); + } +} +//# sourceMappingURL=gssapi.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/gssapi.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/gssapi.js.map new file mode 100644 index 000000000..90d13bbe5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/gssapi.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js new file mode 100644 index 000000000..e7c3304b2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js @@ -0,0 +1,177 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoCredentials = exports.DEFAULT_ALLOWED_HOSTS = void 0; +const error_1 = require("../../error"); +const gssapi_1 = require("./gssapi"); +const providers_1 = require("./providers"); +// https://github.com/mongodb/specifications/blob/master/source/auth/auth.rst +function getDefaultAuthMechanism(hello) { + if (hello) { + // If hello contains saslSupportedMechs, use scram-sha-256 + // if it is available, else scram-sha-1 + if (Array.isArray(hello.saslSupportedMechs)) { + return hello.saslSupportedMechs.includes(providers_1.AuthMechanism.MONGODB_SCRAM_SHA256) + ? providers_1.AuthMechanism.MONGODB_SCRAM_SHA256 + : providers_1.AuthMechanism.MONGODB_SCRAM_SHA1; + } + // Fallback to legacy selection method. If wire version >= 3, use scram-sha-1 + if (hello.maxWireVersion >= 3) { + return providers_1.AuthMechanism.MONGODB_SCRAM_SHA1; + } + } + // Default for wireprotocol < 3 + return providers_1.AuthMechanism.MONGODB_CR; +} +const ALLOWED_PROVIDER_NAMES = ['aws', 'azure']; +const ALLOWED_HOSTS_ERROR = 'Auth mechanism property ALLOWED_HOSTS must be an array of strings.'; +/** @internal */ +exports.DEFAULT_ALLOWED_HOSTS = [ + '*.mongodb.net', + '*.mongodb-dev.net', + '*.mongodbgov.net', + 'localhost', + '127.0.0.1', + '::1' +]; +/** Error for when the token audience is missing in the environment. */ +const TOKEN_AUDIENCE_MISSING_ERROR = 'TOKEN_AUDIENCE must be set in the auth mechanism properties when PROVIDER_NAME is azure.'; +/** + * A representation of the credentials used by MongoDB + * @public + */ +class MongoCredentials { + constructor(options) { + this.username = options.username ?? ''; + this.password = options.password; + this.source = options.source; + if (!this.source && options.db) { + this.source = options.db; + } + this.mechanism = options.mechanism || providers_1.AuthMechanism.MONGODB_DEFAULT; + this.mechanismProperties = options.mechanismProperties || {}; + if (this.mechanism.match(/MONGODB-AWS/i)) { + if (!this.username && process.env.AWS_ACCESS_KEY_ID) { + this.username = process.env.AWS_ACCESS_KEY_ID; + } + if (!this.password && process.env.AWS_SECRET_ACCESS_KEY) { + this.password = process.env.AWS_SECRET_ACCESS_KEY; + } + if (this.mechanismProperties.AWS_SESSION_TOKEN == null && + process.env.AWS_SESSION_TOKEN != null) { + this.mechanismProperties = { + ...this.mechanismProperties, + AWS_SESSION_TOKEN: process.env.AWS_SESSION_TOKEN + }; + } + } + if (this.mechanism === providers_1.AuthMechanism.MONGODB_OIDC && !this.mechanismProperties.ALLOWED_HOSTS) { + this.mechanismProperties = { + ...this.mechanismProperties, + ALLOWED_HOSTS: exports.DEFAULT_ALLOWED_HOSTS + }; + } + Object.freeze(this.mechanismProperties); + Object.freeze(this); + } + /** Determines if two MongoCredentials objects are equivalent */ + equals(other) { + return (this.mechanism === other.mechanism && + this.username === other.username && + this.password === other.password && + this.source === other.source); + } + /** + * If the authentication mechanism is set to "default", resolves the authMechanism + * based on the server version and server supported sasl mechanisms. + * + * @param hello - A hello response from the server + */ + resolveAuthMechanism(hello) { + // If the mechanism is not "default", then it does not need to be resolved + if (this.mechanism.match(/DEFAULT/i)) { + return new MongoCredentials({ + username: this.username, + password: this.password, + source: this.source, + mechanism: getDefaultAuthMechanism(hello), + mechanismProperties: this.mechanismProperties + }); + } + return this; + } + validate() { + if ((this.mechanism === providers_1.AuthMechanism.MONGODB_GSSAPI || + this.mechanism === providers_1.AuthMechanism.MONGODB_CR || + this.mechanism === providers_1.AuthMechanism.MONGODB_PLAIN || + this.mechanism === providers_1.AuthMechanism.MONGODB_SCRAM_SHA1 || + this.mechanism === providers_1.AuthMechanism.MONGODB_SCRAM_SHA256) && + !this.username) { + throw new error_1.MongoMissingCredentialsError(`Username required for mechanism '${this.mechanism}'`); + } + if (this.mechanism === providers_1.AuthMechanism.MONGODB_OIDC) { + if (this.username && this.mechanismProperties.PROVIDER_NAME) { + throw new error_1.MongoInvalidArgumentError(`username and PROVIDER_NAME may not be used together for mechanism '${this.mechanism}'.`); + } + if (this.mechanismProperties.PROVIDER_NAME === 'azure' && + !this.mechanismProperties.TOKEN_AUDIENCE) { + throw new error_1.MongoAzureError(TOKEN_AUDIENCE_MISSING_ERROR); + } + if (this.mechanismProperties.PROVIDER_NAME && + !ALLOWED_PROVIDER_NAMES.includes(this.mechanismProperties.PROVIDER_NAME)) { + throw new error_1.MongoInvalidArgumentError(`Currently only a PROVIDER_NAME in ${ALLOWED_PROVIDER_NAMES.join(',')} is supported for mechanism '${this.mechanism}'.`); + } + if (this.mechanismProperties.REFRESH_TOKEN_CALLBACK && + !this.mechanismProperties.REQUEST_TOKEN_CALLBACK) { + throw new error_1.MongoInvalidArgumentError(`A REQUEST_TOKEN_CALLBACK must be provided when using a REFRESH_TOKEN_CALLBACK for mechanism '${this.mechanism}'`); + } + if (!this.mechanismProperties.PROVIDER_NAME && + !this.mechanismProperties.REQUEST_TOKEN_CALLBACK) { + throw new error_1.MongoInvalidArgumentError(`Either a PROVIDER_NAME or a REQUEST_TOKEN_CALLBACK must be specified for mechanism '${this.mechanism}'.`); + } + if (this.mechanismProperties.ALLOWED_HOSTS) { + const hosts = this.mechanismProperties.ALLOWED_HOSTS; + if (!Array.isArray(hosts)) { + throw new error_1.MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR); + } + for (const host of hosts) { + if (typeof host !== 'string') { + throw new error_1.MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR); + } + } + } + } + if (providers_1.AUTH_MECHS_AUTH_SRC_EXTERNAL.has(this.mechanism)) { + if (this.source != null && this.source !== '$external') { + // TODO(NODE-3485): Replace this with a MongoAuthValidationError + throw new error_1.MongoAPIError(`Invalid source '${this.source}' for mechanism '${this.mechanism}' specified.`); + } + } + if (this.mechanism === providers_1.AuthMechanism.MONGODB_PLAIN && this.source == null) { + // TODO(NODE-3485): Replace this with a MongoAuthValidationError + throw new error_1.MongoAPIError('PLAIN Authentication Mechanism needs an auth source'); + } + if (this.mechanism === providers_1.AuthMechanism.MONGODB_X509 && this.password != null) { + if (this.password === '') { + Reflect.set(this, 'password', undefined); + return; + } + // TODO(NODE-3485): Replace this with a MongoAuthValidationError + throw new error_1.MongoAPIError(`Password not allowed for mechanism MONGODB-X509`); + } + const canonicalization = this.mechanismProperties.CANONICALIZE_HOST_NAME ?? false; + if (!Object.values(gssapi_1.GSSAPICanonicalizationValue).includes(canonicalization)) { + throw new error_1.MongoAPIError(`Invalid CANONICALIZE_HOST_NAME value: ${canonicalization}`); + } + } + static merge(creds, options) { + return new MongoCredentials({ + username: options.username ?? creds?.username ?? '', + password: options.password ?? creds?.password ?? '', + mechanism: options.mechanism ?? creds?.mechanism ?? providers_1.AuthMechanism.MONGODB_DEFAULT, + mechanismProperties: options.mechanismProperties ?? creds?.mechanismProperties ?? {}, + source: options.source ?? options.db ?? creds?.source ?? 'admin' + }); + } +} +exports.MongoCredentials = MongoCredentials; +//# sourceMappingURL=mongo_credentials.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js.map new file mode 100644 index 000000000..a6556d67e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongo_credentials.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongocr.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongocr.js new file mode 100644 index 000000000..b6d346374 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongocr.js @@ -0,0 +1,35 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoCR = void 0; +const crypto = require("crypto"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const auth_provider_1 = require("./auth_provider"); +class MongoCR extends auth_provider_1.AuthProvider { + async auth(authContext) { + const { connection, credentials } = authContext; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + const { username, password, source } = credentials; + const { nonce } = await connection.command((0, utils_1.ns)(`${source}.$cmd`), { getnonce: 1 }, undefined); + const hashPassword = crypto + .createHash('md5') + .update(`${username}:mongo:${password}`, 'utf8') + .digest('hex'); + // Final key + const key = crypto + .createHash('md5') + .update(`${nonce}${username}${hashPassword}`, 'utf8') + .digest('hex'); + const authenticateCommand = { + authenticate: 1, + user: username, + nonce, + key + }; + await connection.command((0, utils_1.ns)(`${source}.$cmd`), authenticateCommand, undefined); + } +} +exports.MongoCR = MongoCR; +//# sourceMappingURL=mongocr.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongocr.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongocr.js.map new file mode 100644 index 000000000..596cdf850 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongocr.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js new file mode 100644 index 000000000..10c6852de --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js @@ -0,0 +1,137 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoDBAWS = void 0; +const BSON = require("../../bson"); +const deps_1 = require("../../deps"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const auth_provider_1 = require("./auth_provider"); +const aws_temporary_credentials_1 = require("./aws_temporary_credentials"); +const mongo_credentials_1 = require("./mongo_credentials"); +const providers_1 = require("./providers"); +const ASCII_N = 110; +const bsonOptions = { + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: false, + bsonRegExp: false +}; +class MongoDBAWS extends auth_provider_1.AuthProvider { + constructor() { + super(); + this.credentialFetcher = aws_temporary_credentials_1.AWSTemporaryCredentialProvider.isAWSSDKInstalled + ? new aws_temporary_credentials_1.AWSSDKCredentialProvider() + : new aws_temporary_credentials_1.LegacyAWSTemporaryCredentialProvider(); + } + async auth(authContext) { + const { connection } = authContext; + if (!authContext.credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + if ('kModuleError' in deps_1.aws4) { + throw deps_1.aws4['kModuleError']; + } + const { sign } = deps_1.aws4; + if ((0, utils_1.maxWireVersion)(connection) < 9) { + throw new error_1.MongoCompatibilityError('MONGODB-AWS authentication requires MongoDB version 4.4 or later'); + } + if (!authContext.credentials.username) { + authContext.credentials = await makeTempCredentials(authContext.credentials, this.credentialFetcher); + } + const { credentials } = authContext; + const accessKeyId = credentials.username; + const secretAccessKey = credentials.password; + // Allow the user to specify an AWS session token for authentication with temporary credentials. + const sessionToken = credentials.mechanismProperties.AWS_SESSION_TOKEN; + // If all three defined, include sessionToken, else include username and pass, else no credentials + const awsCredentials = accessKeyId && secretAccessKey && sessionToken + ? { accessKeyId, secretAccessKey, sessionToken } + : accessKeyId && secretAccessKey + ? { accessKeyId, secretAccessKey } + : undefined; + const db = credentials.source; + const nonce = await (0, utils_1.randomBytes)(32); + // All messages between MongoDB clients and servers are sent as BSON objects + // in the payload field of saslStart and saslContinue. + const saslStart = { + saslStart: 1, + mechanism: 'MONGODB-AWS', + payload: BSON.serialize({ r: nonce, p: ASCII_N }, bsonOptions) + }; + const saslStartResponse = await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslStart, undefined); + const serverResponse = BSON.deserialize(saslStartResponse.payload.buffer, bsonOptions); + const host = serverResponse.h; + const serverNonce = serverResponse.s.buffer; + if (serverNonce.length !== 64) { + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError(`Invalid server nonce length ${serverNonce.length}, expected 64`); + } + if (!utils_1.ByteUtils.equals(serverNonce.subarray(0, nonce.byteLength), nonce)) { + // throw because the serverNonce's leading 32 bytes must equal the client nonce's 32 bytes + // https://github.com/mongodb/specifications/blob/875446db44aade414011731840831f38a6c668df/source/auth/auth.rst#id11 + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError('Server nonce does not begin with client nonce'); + } + if (host.length < 1 || host.length > 255 || host.indexOf('..') !== -1) { + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError(`Server returned an invalid host: "${host}"`); + } + const body = 'Action=GetCallerIdentity&Version=2011-06-15'; + const options = sign({ + method: 'POST', + host, + region: deriveRegion(serverResponse.h), + service: 'sts', + headers: { + 'Content-Type': 'application/x-www-form-urlencoded', + 'Content-Length': body.length, + 'X-MongoDB-Server-Nonce': utils_1.ByteUtils.toBase64(serverNonce), + 'X-MongoDB-GS2-CB-Flag': 'n' + }, + path: '/', + body + }, awsCredentials); + const payload = { + a: options.headers.Authorization, + d: options.headers['X-Amz-Date'] + }; + if (sessionToken) { + payload.t = sessionToken; + } + const saslContinue = { + saslContinue: 1, + conversationId: 1, + payload: BSON.serialize(payload, bsonOptions) + }; + await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslContinue, undefined); + } +} +exports.MongoDBAWS = MongoDBAWS; +async function makeTempCredentials(credentials, awsCredentialFetcher) { + function makeMongoCredentialsFromAWSTemp(creds) { + // The AWS session token (creds.Token) may or may not be set. + if (!creds.AccessKeyId || !creds.SecretAccessKey) { + throw new error_1.MongoMissingCredentialsError('Could not obtain temporary MONGODB-AWS credentials'); + } + return new mongo_credentials_1.MongoCredentials({ + username: creds.AccessKeyId, + password: creds.SecretAccessKey, + source: credentials.source, + mechanism: providers_1.AuthMechanism.MONGODB_AWS, + mechanismProperties: { + AWS_SESSION_TOKEN: creds.Token + } + }); + } + const temporaryCredentials = await awsCredentialFetcher.getCredentials(); + return makeMongoCredentialsFromAWSTemp(temporaryCredentials); +} +function deriveRegion(host) { + const parts = host.split('.'); + if (parts.length === 1 || parts[1] === 'amazonaws') { + return 'us-east-1'; + } + return parts[1]; +} +//# sourceMappingURL=mongodb_aws.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js.map new file mode 100644 index 000000000..738485d96 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_aws.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js new file mode 100644 index 000000000..050cf8aa1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js @@ -0,0 +1,68 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoDBOIDC = exports.OIDC_WORKFLOWS = void 0; +const error_1 = require("../../error"); +const auth_provider_1 = require("./auth_provider"); +const aws_service_workflow_1 = require("./mongodb_oidc/aws_service_workflow"); +const azure_service_workflow_1 = require("./mongodb_oidc/azure_service_workflow"); +const callback_workflow_1 = require("./mongodb_oidc/callback_workflow"); +/** Error when credentials are missing. */ +const MISSING_CREDENTIALS_ERROR = 'AuthContext must provide credentials.'; +/** @internal */ +exports.OIDC_WORKFLOWS = new Map(); +exports.OIDC_WORKFLOWS.set('callback', new callback_workflow_1.CallbackWorkflow()); +exports.OIDC_WORKFLOWS.set('aws', new aws_service_workflow_1.AwsServiceWorkflow()); +exports.OIDC_WORKFLOWS.set('azure', new azure_service_workflow_1.AzureServiceWorkflow()); +/** + * OIDC auth provider. + * @experimental + */ +class MongoDBOIDC extends auth_provider_1.AuthProvider { + /** + * Instantiate the auth provider. + */ + constructor() { + super(); + } + /** + * Authenticate using OIDC + */ + async auth(authContext) { + const { connection, reauthenticating, response } = authContext; + const credentials = getCredentials(authContext); + const workflow = getWorkflow(credentials); + await workflow.execute(connection, credentials, reauthenticating, response); + } + /** + * Add the speculative auth for the initial handshake. + */ + async prepare(handshakeDoc, authContext) { + const credentials = getCredentials(authContext); + const workflow = getWorkflow(credentials); + const result = await workflow.speculativeAuth(credentials); + return { ...handshakeDoc, ...result }; + } +} +exports.MongoDBOIDC = MongoDBOIDC; +/** + * Get credentials from the auth context, throwing if they do not exist. + */ +function getCredentials(authContext) { + const { credentials } = authContext; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError(MISSING_CREDENTIALS_ERROR); + } + return credentials; +} +/** + * Gets either a device workflow or callback workflow. + */ +function getWorkflow(credentials) { + const providerName = credentials.mechanismProperties.PROVIDER_NAME; + const workflow = exports.OIDC_WORKFLOWS.get(providerName || 'callback'); + if (!workflow) { + throw new error_1.MongoInvalidArgumentError(`Could not load workflow for provider ${credentials.mechanismProperties.PROVIDER_NAME}`); + } + return workflow; +} +//# sourceMappingURL=mongodb_oidc.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js.map new file mode 100644 index 000000000..60dcbabd7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/aws_service_workflow.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/aws_service_workflow.js new file mode 100644 index 000000000..fe063c838 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/aws_service_workflow.js @@ -0,0 +1,30 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AwsServiceWorkflow = void 0; +const fs = require("fs"); +const error_1 = require("../../../error"); +const service_workflow_1 = require("./service_workflow"); +/** Error for when the token is missing in the environment. */ +const TOKEN_MISSING_ERROR = 'AWS_WEB_IDENTITY_TOKEN_FILE must be set in the environment.'; +/** + * Device workflow implementation for AWS. + * + * @internal + */ +class AwsServiceWorkflow extends service_workflow_1.ServiceWorkflow { + constructor() { + super(); + } + /** + * Get the token from the environment. + */ + async getToken() { + const tokenFile = process.env.AWS_WEB_IDENTITY_TOKEN_FILE; + if (!tokenFile) { + throw new error_1.MongoAWSError(TOKEN_MISSING_ERROR); + } + return await fs.promises.readFile(tokenFile, 'utf8'); + } +} +exports.AwsServiceWorkflow = AwsServiceWorkflow; +//# sourceMappingURL=aws_service_workflow.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/aws_service_workflow.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/aws_service_workflow.js.map new file mode 100644 index 000000000..fdadfed1a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/aws_service_workflow.js.map @@ -0,0 +1 @@ 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-0,0 +1,73 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AzureServiceWorkflow = void 0; +const error_1 = require("../../../error"); +const utils_1 = require("../../../utils"); +const azure_token_cache_1 = require("./azure_token_cache"); +const service_workflow_1 = require("./service_workflow"); +/** Base URL for getting Azure tokens. */ +const AZURE_BASE_URL = 'http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01'; +/** Azure request headers. */ +const AZURE_HEADERS = Object.freeze({ Metadata: 'true', Accept: 'application/json' }); +/** Invalid endpoint result error. */ +const ENDPOINT_RESULT_ERROR = 'Azure endpoint did not return a value with only access_token and expires_in properties'; +/** Error for when the token audience is missing in the environment. */ +const TOKEN_AUDIENCE_MISSING_ERROR = 'TOKEN_AUDIENCE must be set in the auth mechanism properties when PROVIDER_NAME is azure.'; +/** + * Device workflow implementation for Azure. + * + * @internal + */ +class AzureServiceWorkflow extends service_workflow_1.ServiceWorkflow { + constructor() { + super(...arguments); + this.cache = new azure_token_cache_1.AzureTokenCache(); + } + /** + * Get the token from the environment. + */ + async getToken(credentials) { + const tokenAudience = credentials?.mechanismProperties.TOKEN_AUDIENCE; + if (!tokenAudience) { + throw new error_1.MongoAzureError(TOKEN_AUDIENCE_MISSING_ERROR); + } + let token; + const entry = this.cache.getEntry(tokenAudience); + if (entry?.isValid()) { + token = entry.token; + } + else { + this.cache.deleteEntry(tokenAudience); + const response = await getAzureTokenData(tokenAudience); + if (!isEndpointResultValid(response)) { + throw new error_1.MongoAzureError(ENDPOINT_RESULT_ERROR); + } + this.cache.addEntry(tokenAudience, response); + token = response.access_token; + } + return token; + } +} +exports.AzureServiceWorkflow = AzureServiceWorkflow; +/** + * Hit the Azure endpoint to get the token data. + */ +async function getAzureTokenData(tokenAudience) { + const url = `${AZURE_BASE_URL}&resource=${tokenAudience}`; + const data = await (0, utils_1.request)(url, { + json: true, + headers: AZURE_HEADERS + }); + return data; +} +/** + * Determines if a result returned from the endpoint is valid. + * This means the result is not nullish, contains the access_token required field + * and the expires_in required field. + */ +function isEndpointResultValid(token) { + if (token == null || typeof token !== 'object') + return false; + return 'access_token' in token && 'expires_in' in token; +} +//# sourceMappingURL=azure_service_workflow.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_service_workflow.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_service_workflow.js.map new file mode 100644 index 000000000..cbc885d9a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_service_workflow.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_token_cache.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_token_cache.js new file mode 100644 index 000000000..845750bd5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_token_cache.js @@ -0,0 +1,49 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AzureTokenCache = exports.AzureTokenEntry = void 0; +const cache_1 = require("./cache"); +/** @internal */ +class AzureTokenEntry extends cache_1.ExpiringCacheEntry { + /** + * Instantiate the entry. + */ + constructor(token, expiration) { + super(expiration); + this.token = token; + } +} +exports.AzureTokenEntry = AzureTokenEntry; +/** + * A cache of access tokens from Azure. + * @internal + */ +class AzureTokenCache extends cache_1.Cache { + /** + * Add an entry to the cache. + */ + addEntry(tokenAudience, token) { + const entry = new AzureTokenEntry(token.access_token, token.expires_in); + this.entries.set(tokenAudience, entry); + return entry; + } + /** + * Create a cache key. + */ + cacheKey(tokenAudience) { + return tokenAudience; + } + /** + * Delete an entry from the cache. + */ + deleteEntry(tokenAudience) { + this.entries.delete(tokenAudience); + } + /** + * Get an Azure token entry from the cache. + */ + getEntry(tokenAudience) { + return this.entries.get(tokenAudience); + } +} +exports.AzureTokenCache = AzureTokenCache; +//# sourceMappingURL=azure_token_cache.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_token_cache.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/azure_token_cache.js.map new file mode 100644 index 000000000..86b816373 --- /dev/null +++ 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newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/cache.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/cache.js new file mode 100644 index 000000000..2f08551e2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/cache.js @@ -0,0 +1,55 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Cache = exports.ExpiringCacheEntry = void 0; +/* 5 minutes in milliseconds */ +const EXPIRATION_BUFFER_MS = 300000; +/** + * An entry in a cache that can expire in a certain amount of time. + */ +class ExpiringCacheEntry { + /** + * Create a new expiring token entry. + */ + constructor(expiration) { + this.expiration = this.expirationTime(expiration); + } + /** + * The entry is still valid if the expiration is more than + * 5 minutes from the expiration time. + */ + isValid() { + return this.expiration - Date.now() > EXPIRATION_BUFFER_MS; + } + /** + * Get an expiration time in milliseconds past epoch. + */ + expirationTime(expiresInSeconds) { + return Date.now() + expiresInSeconds * 1000; + } +} +exports.ExpiringCacheEntry = ExpiringCacheEntry; +/** + * Base class for OIDC caches. + */ +class Cache { + /** + * Create a new cache. + */ + constructor() { + this.entries = new Map(); + } + /** + * Clear the cache. + */ + clear() { + this.entries.clear(); + } + /** + * Create a cache key from the address and username. + */ + hashedCacheKey(address, username, callbackHash) { + return JSON.stringify([address, username, callbackHash]); + } +} +exports.Cache = Cache; +//# sourceMappingURL=cache.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/cache.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/cache.js.map new file mode 100644 index 000000000..34ad50c10 --- /dev/null +++ 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hash in the map. */ +FN_HASHES.set(NO_FUNCTION, FN_HASH_COUNTER); +/** + * A cache of request and refresh callbacks per server/user. + */ +class CallbackLockCache extends cache_1.Cache { + /** + * Get the callbacks for the connection and credentials. If an entry does not + * exist a new one will get set. + */ + getEntry(connection, credentials) { + const requestCallback = credentials.mechanismProperties.REQUEST_TOKEN_CALLBACK; + const refreshCallback = credentials.mechanismProperties.REFRESH_TOKEN_CALLBACK; + if (!requestCallback) { + throw new error_1.MongoInvalidArgumentError(REQUEST_CALLBACK_REQUIRED_ERROR); + } + const callbackHash = hashFunctions(requestCallback, refreshCallback); + const key = this.cacheKey(connection.address, credentials.username, callbackHash); + const entry = this.entries.get(key); + if (entry) { + return entry; + } + return this.addEntry(key, callbackHash, requestCallback, refreshCallback); + } + /** + * Set locked callbacks on for connection and credentials. + */ + addEntry(key, callbackHash, requestCallback, refreshCallback) { + const entry = { + requestCallback: withLock(requestCallback), + refreshCallback: refreshCallback ? withLock(refreshCallback) : undefined, + callbackHash: callbackHash + }; + this.entries.set(key, entry); + return entry; + } + /** + * Create a cache key from the address and username. + */ + cacheKey(address, username, callbackHash) { + return this.hashedCacheKey(address, username, callbackHash); + } +} +exports.CallbackLockCache = CallbackLockCache; +/** + * Ensure the callback is only executed one at a time. + */ +function withLock(callback) { + let lock = Promise.resolve(); + return async (info, context) => { + await lock; + // eslint-disable-next-line github/no-then + lock = lock.then(() => callback(info, context)); + return await lock; + }; +} +/** + * Get the hash string for the request and refresh functions. + */ +function hashFunctions(requestFn, refreshFn) { + let requestHash = FN_HASHES.get(requestFn); + let refreshHash = FN_HASHES.get(refreshFn ?? NO_FUNCTION); + if (requestHash == null) { + // Create a new one for the function and put it in the map. + FN_HASH_COUNTER++; + requestHash = FN_HASH_COUNTER; + FN_HASHES.set(requestFn, FN_HASH_COUNTER); + } + if (refreshHash == null && refreshFn) { + // Create a new one for the function and put it in the map. + FN_HASH_COUNTER++; + refreshHash = FN_HASH_COUNTER; + FN_HASHES.set(refreshFn, FN_HASH_COUNTER); + } + return `${requestHash}-${refreshHash}`; +} +//# sourceMappingURL=callback_lock_cache.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_lock_cache.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_lock_cache.js.map new file mode 100644 index 000000000..86aa0d619 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_lock_cache.js.map @@ -0,0 +1 @@ +{"version":3,"file":"callback_lock_cache.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/callback_lock_cache.ts"],"names":[],"mappings":";;;AAAA,0CAA2D;AAU3D,mCAAgC;AAEhC,0DAA0D;AAC1D,MAAM,+BAA+B,GACnC,6DAA6D,CAAC;AAChE,mCAAmC;AACnC,IAAI,eAAe,GAAG,CAAC,CAAC;AACxB,kCAAkC;AAClC,MAAM,WAAW,GAAwB,KAAK,IAAI,EAAE,CAAC,CAAC,EAAE,WAAW,EAAE,MAAM,EAAE,CAAC,CAAC;AAC/E,gCAAgC;AAChC,MAAM,SAAS,GAAG,IAAI,OAAO,EAAqD,CAAC;AACnF,0CAA0C;AAC1C,SAAS,CAAC,GAAG,CAAC,WAAW,EAAE,eAAe,CAAC,CAAC;AAW5C;;GAEG;AACH,MAAa,iBAAkB,SAAQ,aAAqB;IAC1D;;;OAGG;IACH,QAAQ,CAAC,UAAsB,EAAE,WAA6B;QAC5D,MAAM,eAAe,GAAG,WAAW,CAAC,mBAAmB,CAAC,sBAAsB,CAAC;QAC/E,MAAM,eAAe,GAAG,WAAW,CAAC,mBAAmB,CAAC,sBAAsB,CAAC;QAC/E,IAAI,CAAC,eAAe,EAAE;YACpB,MAAM,IAAI,iCAAyB,CAAC,+BAA+B,CAAC,CAAC;SACtE;QACD,MAAM,YAAY,GAAG,aAAa,CAAC,eAAe,EAAE,eAAe,CAAC,CAAC;QACrE,MAAM,GAAG,GAAG,IAAI,CAAC,QAAQ,CAAC,UAAU,CAAC,OAAO,EAAE,WAAW,CAAC,QAAQ,EAAE,YAAY,CAAC,CAAC;QAClF,MAAM,KAAK,GAAG,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,GAAG,CAAC,CAAC;QACpC,IAAI,KAAK,EAAE;YACT,OAAO,KAAK,CAAC;SACd;QACD,OAAO,IAAI,CAAC,QAAQ,CAAC,GAAG,EAAE,YAAY,EAAE,eAAe,EAAE,eAAe,CAAC,CAAC;IAC5E,CAAC;IAED;;OAEG;IACK,QAAQ,CACd,GAAW,EACX,YAAoB,EACpB,eAAoC,EACpC,eAAqC;QAErC,MAAM,KAAK,GAAG;YACZ,eAAe,EAAE,QAAQ,CAAC,eAAe,CAAC;YAC1C,eAAe,EAAE,eAAe,CAAC,CAAC,CAAC,QAAQ,CAAC,eAAe,CAAC,CAAC,CAAC,CAAC,SAAS;YACxE,YAAY,EAAE,YAAY;SAC3B,CAAC;QACF,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,GAAG,EAAE,KAAK,CAAC,CAAC;QAC7B,OAAO,KAAK,CAAC;IACf,CAAC;IAED;;OAEG;IACH,QAAQ,CAAC,OAAe,EAAE,QAAgB,EAAE,YAAoB;QAC9D,OAAO,IAAI,CAAC,cAAc,CAAC,OAAO,EAAE,QAAQ,EAAE,YAAY,CAAC,CAAC;IAC9D,CAAC;CACF;AA5CD,8CA4CC;AAED;;GAEG;AACH,SAAS,QAAQ,CAAC,QAAmD;IACnE,IAAI,IAAI,GAAiB,OAAO,CAAC,OAAO,EAAE,CAAC;IAC3C,OAAO,KAAK,EAAE,IAAmB,EAAE,OAA4B,EAA8B,EAAE;QAC7F,MAAM,IAAI,CAAC;QACX,0CAA0C;QAC1C,IAAI,GAAG,IAAI,CAAC,IAAI,CAAC,GAAG,EAAE,CAAC,QAAQ,CAAC,IAAI,EAAE,OAAO,CAAC,CAAC,CAAC;QAChD,OAAO,MAAM,IAAI,CAAC;IACpB,CAAC,CAAC;AACJ,CAAC;AAED;;GAEG;AACH,SAAS,aAAa,CAAC,SAA8B,EAAE,SAA+B;IACpF,IAAI,WAAW,GAAG,SAAS,CAAC,GAAG,CAAC,SAAS,CAAC,CAAC;IAC3C,IAAI,WAAW,GAAG,SAAS,CAAC,GAAG,CAAC,SAAS,IAAI,WAAW,CAAC,CAAC;IAC1D,IAAI,WAAW,IAAI,IAAI,EAAE;QACvB,2DAA2D;QAC3D,eAAe,EAAE,CAAC;QAClB,WAAW,GAAG,eAAe,CAAC;QAC9B,SAAS,CAAC,GAAG,CAAC,SAAS,EAAE,eAAe,CAAC,CAAC;KAC3C;IACD,IAAI,WAAW,IAAI,IAAI,IAAI,SAAS,EAAE;QACpC,2DAA2D;QAC3D,eAAe,EAAE,CAAC;QAClB,WAAW,GAAG,eAAe,CAAC;QAC9B,SAAS,CAAC,GAAG,CAAC,SAAS,EAAE,eAAe,CAAC,CAAC;KAC3C;IACD,OAAO,GAAG,WAAW,IAAI,WAAW,EAAE,CAAC;AACzC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js new file mode 100644 index 000000000..34ad9a94c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js @@ -0,0 +1,204 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CallbackWorkflow = void 0; +const bson_1 = require("bson"); +const error_1 = require("../../../error"); +const utils_1 = require("../../../utils"); +const providers_1 = require("../providers"); +const callback_lock_cache_1 = require("./callback_lock_cache"); +const token_entry_cache_1 = require("./token_entry_cache"); +/** The current version of OIDC implementation. */ +const OIDC_VERSION = 0; +/** 5 minutes in seconds */ +const TIMEOUT_S = 300; +/** Properties allowed on results of callbacks. */ +const RESULT_PROPERTIES = ['accessToken', 'expiresInSeconds', 'refreshToken']; +/** Error message when the callback result is invalid. */ +const CALLBACK_RESULT_ERROR = 'User provided OIDC callbacks must return a valid object with an accessToken.'; +/** + * OIDC implementation of a callback based workflow. + * @internal + */ +class CallbackWorkflow { + /** + * Instantiate the workflow + */ + constructor() { + this.cache = new token_entry_cache_1.TokenEntryCache(); + this.callbackCache = new callback_lock_cache_1.CallbackLockCache(); + } + /** + * Get the document to add for speculative authentication. This also needs + * to add a db field from the credentials source. + */ + async speculativeAuth(credentials) { + const document = startCommandDocument(credentials); + document.db = credentials.source; + return { speculativeAuthenticate: document }; + } + /** + * Execute the OIDC callback workflow. + */ + async execute(connection, credentials, reauthenticating, response) { + // Get the callbacks with locks from the callback lock cache. + const { requestCallback, refreshCallback, callbackHash } = this.callbackCache.getEntry(connection, credentials); + // Look for an existing entry in the cache. + const entry = this.cache.getEntry(connection.address, credentials.username, callbackHash); + let result; + if (entry) { + // Reauthentication cannot use a token from the cache since the server has + // stated it is invalid by the request for reauthentication. + if (entry.isValid() && !reauthenticating) { + // Presence of a valid cache entry means we can skip to the finishing step. + result = await this.finishAuthentication(connection, credentials, entry.tokenResult, response?.speculativeAuthenticate?.conversationId); + } + else { + // Presence of an expired cache entry means we must fetch a new one and + // then execute the final step. + const tokenResult = await this.fetchAccessToken(connection, credentials, entry.serverInfo, reauthenticating, callbackHash, requestCallback, refreshCallback); + try { + result = await this.finishAuthentication(connection, credentials, tokenResult, reauthenticating ? undefined : response?.speculativeAuthenticate?.conversationId); + } + catch (error) { + // If we are reauthenticating and this errors with reauthentication + // required, we need to do the entire process over again and clear + // the cache entry. + if (reauthenticating && + error instanceof error_1.MongoError && + error.code === error_1.MONGODB_ERROR_CODES.Reauthenticate) { + this.cache.deleteEntry(connection.address, credentials.username, callbackHash); + result = await this.execute(connection, credentials, reauthenticating); + } + else { + throw error; + } + } + } + } + else { + // No entry in the cache requires us to do all authentication steps + // from start to finish, including getting a fresh token for the cache. + const startDocument = await this.startAuthentication(connection, credentials, reauthenticating, response); + const conversationId = startDocument.conversationId; + const serverResult = bson_1.BSON.deserialize(startDocument.payload.buffer); + const tokenResult = await this.fetchAccessToken(connection, credentials, serverResult, reauthenticating, callbackHash, requestCallback, refreshCallback); + result = await this.finishAuthentication(connection, credentials, tokenResult, conversationId); + } + return result; + } + /** + * Starts the callback authentication process. If there is a speculative + * authentication document from the initial handshake, then we will use that + * value to get the issuer, otherwise we will send the saslStart command. + */ + async startAuthentication(connection, credentials, reauthenticating, response) { + let result; + if (!reauthenticating && response?.speculativeAuthenticate) { + result = response.speculativeAuthenticate; + } + else { + result = await connection.command((0, utils_1.ns)(credentials.source), startCommandDocument(credentials), undefined); + } + return result; + } + /** + * Finishes the callback authentication process. + */ + async finishAuthentication(connection, credentials, tokenResult, conversationId) { + const result = await connection.command((0, utils_1.ns)(credentials.source), finishCommandDocument(tokenResult.accessToken, conversationId), undefined); + return result; + } + /** + * Fetches an access token using either the request or refresh callbacks and + * puts it in the cache. + */ + async fetchAccessToken(connection, credentials, serverInfo, reauthenticating, callbackHash, requestCallback, refreshCallback) { + // Get the token from the cache. + const entry = this.cache.getEntry(connection.address, credentials.username, callbackHash); + let result; + const context = { timeoutSeconds: TIMEOUT_S, version: OIDC_VERSION }; + // Check if there's a token in the cache. + if (entry) { + // If the cache entry is valid, return the token result. + if (entry.isValid() && !reauthenticating) { + return entry.tokenResult; + } + // If the cache entry is not valid, remove it from the cache and first attempt + // to use the refresh callback to get a new token. If no refresh callback + // exists, then fallback to the request callback. + if (refreshCallback) { + context.refreshToken = entry.tokenResult.refreshToken; + result = await refreshCallback(serverInfo, context); + } + else { + result = await requestCallback(serverInfo, context); + } + } + else { + // With no token in the cache we use the request callback. + result = await requestCallback(serverInfo, context); + } + // Validate that the result returned by the callback is acceptable. If it is not + // we must clear the token result from the cache. + if (isCallbackResultInvalid(result)) { + this.cache.deleteEntry(connection.address, credentials.username, callbackHash); + throw new error_1.MongoMissingCredentialsError(CALLBACK_RESULT_ERROR); + } + // Cleanup the cache. + this.cache.deleteExpiredEntries(); + // Put the new entry into the cache. + this.cache.addEntry(connection.address, credentials.username || '', callbackHash, result, serverInfo); + return result; + } +} +exports.CallbackWorkflow = CallbackWorkflow; +/** + * Generate the finishing command document for authentication. Will be a + * saslStart or saslContinue depending on the presence of a conversation id. + */ +function finishCommandDocument(token, conversationId) { + if (conversationId != null && typeof conversationId === 'number') { + return { + saslContinue: 1, + conversationId: conversationId, + payload: new bson_1.Binary(bson_1.BSON.serialize({ jwt: token })) + }; + } + // saslContinue requires a conversationId in the command to be valid so in this + // case the server allows "step two" to actually be a saslStart with the token + // as the jwt since the use of the cached value has no correlating conversating + // on the particular connection. + return { + saslStart: 1, + mechanism: providers_1.AuthMechanism.MONGODB_OIDC, + payload: new bson_1.Binary(bson_1.BSON.serialize({ jwt: token })) + }; +} +/** + * Determines if a result returned from a request or refresh callback + * function is invalid. This means the result is nullish, doesn't contain + * the accessToken required field, and does not contain extra fields. + */ +function isCallbackResultInvalid(tokenResult) { + if (tokenResult == null || typeof tokenResult !== 'object') + return true; + if (!('accessToken' in tokenResult)) + return true; + return !Object.getOwnPropertyNames(tokenResult).every(prop => RESULT_PROPERTIES.includes(prop)); +} +/** + * Generate the saslStart command document. + */ +function startCommandDocument(credentials) { + const payload = {}; + if (credentials.username) { + payload.n = credentials.username; + } + return { + saslStart: 1, + autoAuthorize: 1, + mechanism: providers_1.AuthMechanism.MONGODB_OIDC, + payload: new bson_1.Binary(bson_1.BSON.serialize(payload)) + }; +} +//# sourceMappingURL=callback_workflow.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/callback_workflow.js.map 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/service_workflow.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/service_workflow.js new file mode 100644 index 000000000..9f25dbfb9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/service_workflow.js @@ -0,0 +1,43 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.commandDocument = exports.ServiceWorkflow = void 0; +const bson_1 = require("bson"); +const utils_1 = require("../../../utils"); +const providers_1 = require("../providers"); +/** + * Common behaviour for OIDC device workflows. + * @internal + */ +class ServiceWorkflow { + /** + * Execute the workflow. Looks for AWS_WEB_IDENTITY_TOKEN_FILE in the environment + * and then attempts to read the token from that path. + */ + async execute(connection, credentials) { + const token = await this.getToken(credentials); + const command = commandDocument(token); + return await connection.command((0, utils_1.ns)(credentials.source), command, undefined); + } + /** + * Get the document to add for speculative authentication. + */ + async speculativeAuth(credentials) { + const token = await this.getToken(credentials); + const document = commandDocument(token); + document.db = credentials.source; + return { speculativeAuthenticate: document }; + } +} +exports.ServiceWorkflow = ServiceWorkflow; +/** + * Create the saslStart command document. + */ +function commandDocument(token) { + return { + saslStart: 1, + mechanism: providers_1.AuthMechanism.MONGODB_OIDC, + payload: bson_1.BSON.serialize({ jwt: token }) + }; +} +exports.commandDocument = commandDocument; +//# sourceMappingURL=service_workflow.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/service_workflow.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/service_workflow.js.map new file mode 100644 index 000000000..08093f7a4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/service_workflow.js.map @@ -0,0 +1 @@ +{"version":3,"file":"service_workflow.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/service_workflow.ts"],"names":[],"mappings":";;;AAAA,+BAA2C;AAE3C,0CAAoC;AAIpC,4CAA6C;AAE7C;;;GAGG;AACH,MAAsB,eAAe;IACnC;;;OAGG;IACH,KAAK,CAAC,OAAO,CAAC,UAAsB,EAAE,WAA6B;QACjE,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,CAAC;QAC/C,MAAM,OAAO,GAAG,eAAe,CAAC,KAAK,CAAC,CAAC;QACvC,OAAO,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,WAAW,CAAC,MAAM,CAAC,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;IAC9E,CAAC;IAED;;OAEG;IACH,KAAK,CAAC,eAAe,CAAC,WAA6B;QACjD,MAAM,KAAK,GAAG,MAAM,IAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,CAAC;QAC/C,MAAM,QAAQ,GAAG,eAAe,CAAC,KAAK,CAAC,CAAC;QACxC,QAAQ,CAAC,EAAE,GAAG,WAAW,CAAC,MAAM,CAAC;QACjC,OAAO,EAAE,uBAAuB,EAAE,QAAQ,EAAE,CAAC;IAC/C,CAAC;CAMF;AAzBD,0CAyBC;AAED;;GAEG;AACH,SAAgB,eAAe,CAAC,KAAa;IAC3C,OAAO;QACL,SAAS,EAAE,CAAC;QACZ,SAAS,EAAE,yBAAa,CAAC,YAAY;QACrC,OAAO,EAAE,WAAI,CAAC,SAAS,CAAC,EAAE,GAAG,EAAE,KAAK,EAAE,CAAC;KACxC,CAAC;AACJ,CAAC;AAND,0CAMC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_entry_cache.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_entry_cache.js new file mode 100644 index 000000000..35cdbbe49 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_entry_cache.js @@ -0,0 +1,62 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.TokenEntryCache = exports.TokenEntry = void 0; +const cache_1 = require("./cache"); +/* Default expiration is now for when no expiration provided */ +const DEFAULT_EXPIRATION_SECS = 0; +/** @internal */ +class TokenEntry extends cache_1.ExpiringCacheEntry { + /** + * Instantiate the entry. + */ + constructor(tokenResult, serverInfo, expiration) { + super(expiration); + this.tokenResult = tokenResult; + this.serverInfo = serverInfo; + } +} +exports.TokenEntry = TokenEntry; +/** + * Cache of OIDC token entries. + * @internal + */ +class TokenEntryCache extends cache_1.Cache { + /** + * Set an entry in the token cache. + */ + addEntry(address, username, callbackHash, tokenResult, serverInfo) { + const entry = new TokenEntry(tokenResult, serverInfo, tokenResult.expiresInSeconds ?? DEFAULT_EXPIRATION_SECS); + this.entries.set(this.cacheKey(address, username, callbackHash), entry); + return entry; + } + /** + * Delete an entry from the cache. + */ + deleteEntry(address, username, callbackHash) { + this.entries.delete(this.cacheKey(address, username, callbackHash)); + } + /** + * Get an entry from the cache. + */ + getEntry(address, username, callbackHash) { + return this.entries.get(this.cacheKey(address, username, callbackHash)); + } + /** + * Delete all expired entries from the cache. + */ + deleteExpiredEntries() { + for (const [key, entry] of this.entries) { + if (!entry.isValid()) { + this.entries.delete(key); + } + } + } + /** + * Create a cache key from the address and username. + */ + cacheKey(address, username, callbackHash) { + return this.hashedCacheKey(address, username, callbackHash); + } +} +exports.TokenEntryCache = TokenEntryCache; +//# sourceMappingURL=token_entry_cache.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_entry_cache.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_entry_cache.js.map new file mode 100644 index 000000000..039953724 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/mongodb_oidc/token_entry_cache.js.map @@ -0,0 +1 @@ +{"version":3,"file":"token_entry_cache.js","sourceRoot":"","sources":["../../../../src/cmap/auth/mongodb_oidc/token_entry_cache.ts"],"names":[],"mappings":";;;AACA,mCAAoD;AAEpD,+DAA+D;AAC/D,MAAM,uBAAuB,GAAG,CAAC,CAAC;AAElC,gBAAgB;AAChB,MAAa,UAAW,SAAQ,0BAAkB;IAIhD;;OAEG;IACH,YAAY,WAA8B,EAAE,UAAyB,EAAE,UAAkB;QACvF,KAAK,CAAC,UAAU,CAAC,CAAC;QAClB,IAAI,CAAC,WAAW,GAAG,WAAW,CAAC;QAC/B,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;CACF;AAZD,gCAYC;AAED;;;GAGG;AACH,MAAa,eAAgB,SAAQ,aAAiB;IACpD;;OAEG;IACH,QAAQ,CACN,OAAe,EACf,QAAgB,EAChB,YAAoB,EACpB,WAA8B,EAC9B,UAAyB;QAEzB,MAAM,KAAK,GAAG,IAAI,UAAU,CAC1B,WAAW,EACX,UAAU,EACV,WAAW,CAAC,gBAAgB,IAAI,uBAAuB,CACxD,CAAC;QACF,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,IAAI,CAAC,QAAQ,CAAC,OAAO,EAAE,QAAQ,EAAE,YAAY,CAAC,EAAE,KAAK,CAAC,CAAC;QACxE,OAAO,KAAK,CAAC;IACf,CAAC;IAED;;OAEG;IACH,WAAW,CAAC,OAAe,EAAE,QAAgB,EAAE,YAAoB;QACjE,IAAI,CAAC,OAAO,CAAC,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC,OAAO,EAAE,QAAQ,EAAE,YAAY,CAAC,CAAC,CAAC;IACtE,CAAC;IAED;;OAEG;IACH,QAAQ,CAAC,OAAe,EAAE,QAAgB,EAAE,YAAoB;QAC9D,OAAO,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,IAAI,CAAC,QAAQ,CAAC,OAAO,EAAE,QAAQ,EAAE,YAAY,CAAC,CAAC,CAAC;IAC1E,CAAC;IAED;;OAEG;IACH,oBAAoB;QAClB,KAAK,MAAM,CAAC,GAAG,EAAE,KAAK,CAAC,IAAI,IAAI,CAAC,OAAO,EAAE;YACvC,IAAI,CAAC,KAAK,CAAC,OAAO,EAAE,EAAE;gBACpB,IAAI,CAAC,OAAO,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;aAC1B;SACF;IACH,CAAC;IAED;;OAEG;IACH,QAAQ,CAAC,OAAe,EAAE,QAAgB,EAAE,YAAoB;QAC9D,OAAO,IAAI,CAAC,cAAc,CAAC,OAAO,EAAE,QAAQ,EAAE,YAAY,CAAC,CAAC;IAC9D,CAAC;CACF;AAnDD,0CAmDC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/plain.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/plain.js new file mode 100644 index 000000000..7d197ab2a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/plain.js @@ -0,0 +1,26 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Plain = void 0; +const bson_1 = require("../../bson"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const auth_provider_1 = require("./auth_provider"); +class Plain extends auth_provider_1.AuthProvider { + async auth(authContext) { + const { connection, credentials } = authContext; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + const { username, password } = credentials; + const payload = new bson_1.Binary(Buffer.from(`\x00${username}\x00${password}`)); + const command = { + saslStart: 1, + mechanism: 'PLAIN', + payload: payload, + autoAuthorize: 1 + }; + await connection.command((0, utils_1.ns)('$external.$cmd'), command, undefined); + } +} +exports.Plain = Plain; +//# sourceMappingURL=plain.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/plain.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/plain.js.map new file mode 100644 index 000000000..70accddec --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/plain.js.map @@ -0,0 +1 @@ +{"version":3,"file":"plain.js","sourceRoot":"","sources":["../../../src/cmap/auth/plain.ts"],"names":[],"mappings":";;;AAAA,qCAAoC;AACpC,uCAA2D;AAC3D,uCAAiC;AACjC,mDAAiE;AAEjE,MAAa,KAAM,SAAQ,4BAAY;IAC5B,KAAK,CAAC,IAAI,CAAC,WAAwB;QAC1C,MAAM,EAAE,UAAU,EAAE,WAAW,EAAE,GAAG,WAAW,CAAC;QAChD,IAAI,CAAC,WAAW,EAAE;YAChB,MAAM,IAAI,oCAA4B,CAAC,uCAAuC,CAAC,CAAC;SACjF;QAED,MAAM,EAAE,QAAQ,EAAE,QAAQ,EAAE,GAAG,WAAW,CAAC;QAE3C,MAAM,OAAO,GAAG,IAAI,aAAM,CAAC,MAAM,CAAC,IAAI,CAAC,OAAO,QAAQ,OAAO,QAAQ,EAAE,CAAC,CAAC,CAAC;QAC1E,MAAM,OAAO,GAAG;YACd,SAAS,EAAE,CAAC;YACZ,SAAS,EAAE,OAAO;YAClB,OAAO,EAAE,OAAO;YAChB,aAAa,EAAE,CAAC;SACjB,CAAC;QAEF,MAAM,UAAU,CAAC,OAAO,CAAC,IAAA,UAAE,EAAC,gBAAgB,CAAC,EAAE,OAAO,EAAE,SAAS,CAAC,CAAC;IACrE,CAAC;CACF;AAnBD,sBAmBC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/providers.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/providers.js new file mode 100644 index 000000000..a546512ee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/providers.js @@ -0,0 +1,24 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AUTH_MECHS_AUTH_SRC_EXTERNAL = exports.AuthMechanism = void 0; +/** @public */ +exports.AuthMechanism = Object.freeze({ + MONGODB_AWS: 'MONGODB-AWS', + MONGODB_CR: 'MONGODB-CR', + MONGODB_DEFAULT: 'DEFAULT', + MONGODB_GSSAPI: 'GSSAPI', + MONGODB_PLAIN: 'PLAIN', + MONGODB_SCRAM_SHA1: 'SCRAM-SHA-1', + MONGODB_SCRAM_SHA256: 'SCRAM-SHA-256', + MONGODB_X509: 'MONGODB-X509', + /** @experimental */ + MONGODB_OIDC: 'MONGODB-OIDC' +}); +/** @internal */ +exports.AUTH_MECHS_AUTH_SRC_EXTERNAL = new Set([ + exports.AuthMechanism.MONGODB_GSSAPI, + exports.AuthMechanism.MONGODB_AWS, + exports.AuthMechanism.MONGODB_OIDC, + exports.AuthMechanism.MONGODB_X509 +]); +//# sourceMappingURL=providers.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/providers.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/providers.js.map new file mode 100644 index 000000000..8f1776575 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/providers.js.map @@ -0,0 +1 @@ +{"version":3,"file":"providers.js","sourceRoot":"","sources":["../../../src/cmap/auth/providers.ts"],"names":[],"mappings":";;;AAAA,cAAc;AACD,QAAA,aAAa,GAAG,MAAM,CAAC,MAAM,CAAC;IACzC,WAAW,EAAE,aAAa;IAC1B,UAAU,EAAE,YAAY;IACxB,eAAe,EAAE,SAAS;IAC1B,cAAc,EAAE,QAAQ;IACxB,aAAa,EAAE,OAAO;IACtB,kBAAkB,EAAE,aAAa;IACjC,oBAAoB,EAAE,eAAe;IACrC,YAAY,EAAE,cAAc;IAC5B,oBAAoB;IACpB,YAAY,EAAE,cAAc;CACpB,CAAC,CAAC;AAKZ,gBAAgB;AACH,QAAA,4BAA4B,GAAG,IAAI,GAAG,CAAgB;IACjE,qBAAa,CAAC,cAAc;IAC5B,qBAAa,CAAC,WAAW;IACzB,qBAAa,CAAC,YAAY;IAC1B,qBAAa,CAAC,YAAY;CAC3B,CAAC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/scram.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/scram.js new file mode 100644 index 000000000..eb7fe59f2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/scram.js @@ -0,0 +1,254 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ScramSHA256 = exports.ScramSHA1 = void 0; +const saslprep_1 = require("@mongodb-js/saslprep"); +const crypto = require("crypto"); +const bson_1 = require("../../bson"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const auth_provider_1 = require("./auth_provider"); +const providers_1 = require("./providers"); +class ScramSHA extends auth_provider_1.AuthProvider { + constructor(cryptoMethod) { + super(); + this.cryptoMethod = cryptoMethod || 'sha1'; + } + async prepare(handshakeDoc, authContext) { + const cryptoMethod = this.cryptoMethod; + const credentials = authContext.credentials; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + const nonce = await (0, utils_1.randomBytes)(24); + // store the nonce for later use + authContext.nonce = nonce; + const request = { + ...handshakeDoc, + speculativeAuthenticate: { + ...makeFirstMessage(cryptoMethod, credentials, nonce), + db: credentials.source + } + }; + return request; + } + async auth(authContext) { + const { reauthenticating, response } = authContext; + if (response?.speculativeAuthenticate && !reauthenticating) { + return await continueScramConversation(this.cryptoMethod, response.speculativeAuthenticate, authContext); + } + return await executeScram(this.cryptoMethod, authContext); + } +} +function cleanUsername(username) { + return username.replace('=', '=3D').replace(',', '=2C'); +} +function clientFirstMessageBare(username, nonce) { + // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8. + // Since the username is not sasl-prep-d, we need to do this here. + return Buffer.concat([ + Buffer.from('n=', 'utf8'), + Buffer.from(username, 'utf8'), + Buffer.from(',r=', 'utf8'), + Buffer.from(nonce.toString('base64'), 'utf8') + ]); +} +function makeFirstMessage(cryptoMethod, credentials, nonce) { + const username = cleanUsername(credentials.username); + const mechanism = cryptoMethod === 'sha1' ? providers_1.AuthMechanism.MONGODB_SCRAM_SHA1 : providers_1.AuthMechanism.MONGODB_SCRAM_SHA256; + // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8. + // Since the username is not sasl-prep-d, we need to do this here. + return { + saslStart: 1, + mechanism, + payload: new bson_1.Binary(Buffer.concat([Buffer.from('n,,', 'utf8'), clientFirstMessageBare(username, nonce)])), + autoAuthorize: 1, + options: { skipEmptyExchange: true } + }; +} +async function executeScram(cryptoMethod, authContext) { + const { connection, credentials } = authContext; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + if (!authContext.nonce) { + throw new error_1.MongoInvalidArgumentError('AuthContext must contain a valid nonce property'); + } + const nonce = authContext.nonce; + const db = credentials.source; + const saslStartCmd = makeFirstMessage(cryptoMethod, credentials, nonce); + const response = await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslStartCmd, undefined); + await continueScramConversation(cryptoMethod, response, authContext); +} +async function continueScramConversation(cryptoMethod, response, authContext) { + const connection = authContext.connection; + const credentials = authContext.credentials; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + if (!authContext.nonce) { + throw new error_1.MongoInvalidArgumentError('Unable to continue SCRAM without valid nonce'); + } + const nonce = authContext.nonce; + const db = credentials.source; + const username = cleanUsername(credentials.username); + const password = credentials.password; + const processedPassword = cryptoMethod === 'sha256' ? (0, saslprep_1.saslprep)(password) : passwordDigest(username, password); + const payload = Buffer.isBuffer(response.payload) + ? new bson_1.Binary(response.payload) + : response.payload; + const dict = parsePayload(payload); + const iterations = parseInt(dict.i, 10); + if (iterations && iterations < 4096) { + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError(`Server returned an invalid iteration count ${iterations}`); + } + const salt = dict.s; + const rnonce = dict.r; + if (rnonce.startsWith('nonce')) { + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError(`Server returned an invalid nonce: ${rnonce}`); + } + // Set up start of proof + const withoutProof = `c=biws,r=${rnonce}`; + const saltedPassword = HI(processedPassword, Buffer.from(salt, 'base64'), iterations, cryptoMethod); + const clientKey = HMAC(cryptoMethod, saltedPassword, 'Client Key'); + const serverKey = HMAC(cryptoMethod, saltedPassword, 'Server Key'); + const storedKey = H(cryptoMethod, clientKey); + const authMessage = [ + clientFirstMessageBare(username, nonce), + payload.toString('utf8'), + withoutProof + ].join(','); + const clientSignature = HMAC(cryptoMethod, storedKey, authMessage); + const clientProof = `p=${xor(clientKey, clientSignature)}`; + const clientFinal = [withoutProof, clientProof].join(','); + const serverSignature = HMAC(cryptoMethod, serverKey, authMessage); + const saslContinueCmd = { + saslContinue: 1, + conversationId: response.conversationId, + payload: new bson_1.Binary(Buffer.from(clientFinal)) + }; + const r = await connection.command((0, utils_1.ns)(`${db}.$cmd`), saslContinueCmd, undefined); + const parsedResponse = parsePayload(r.payload); + if (!compareDigest(Buffer.from(parsedResponse.v, 'base64'), serverSignature)) { + throw new error_1.MongoRuntimeError('Server returned an invalid signature'); + } + if (r.done !== false) { + // If the server sends r.done === true we can save one RTT + return; + } + const retrySaslContinueCmd = { + saslContinue: 1, + conversationId: r.conversationId, + payload: Buffer.alloc(0) + }; + await connection.command((0, utils_1.ns)(`${db}.$cmd`), retrySaslContinueCmd, undefined); +} +function parsePayload(payload) { + const payloadStr = payload.toString('utf8'); + const dict = {}; + const parts = payloadStr.split(','); + for (let i = 0; i < parts.length; i++) { + const valueParts = (parts[i].match(/^([^=]*)=(.*)$/) ?? []).slice(1); + dict[valueParts[0]] = valueParts[1]; + } + return dict; +} +function passwordDigest(username, password) { + if (typeof username !== 'string') { + throw new error_1.MongoInvalidArgumentError('Username must be a string'); + } + if (typeof password !== 'string') { + throw new error_1.MongoInvalidArgumentError('Password must be a string'); + } + if (password.length === 0) { + throw new error_1.MongoInvalidArgumentError('Password cannot be empty'); + } + let md5; + try { + md5 = crypto.createHash('md5'); + } + catch (err) { + if (crypto.getFips()) { + // This error is (slightly) more helpful than what comes from OpenSSL directly, e.g. + // 'Error: error:060800C8:digital envelope routines:EVP_DigestInit_ex:disabled for FIPS' + throw new Error('Auth mechanism SCRAM-SHA-1 is not supported in FIPS mode'); + } + throw err; + } + md5.update(`${username}:mongo:${password}`, 'utf8'); + return md5.digest('hex'); +} +// XOR two buffers +function xor(a, b) { + if (!Buffer.isBuffer(a)) { + a = Buffer.from(a); + } + if (!Buffer.isBuffer(b)) { + b = Buffer.from(b); + } + const length = Math.max(a.length, b.length); + const res = []; + for (let i = 0; i < length; i += 1) { + res.push(a[i] ^ b[i]); + } + return Buffer.from(res).toString('base64'); +} +function H(method, text) { + return crypto.createHash(method).update(text).digest(); +} +function HMAC(method, key, text) { + return crypto.createHmac(method, key).update(text).digest(); +} +let _hiCache = {}; +let _hiCacheCount = 0; +function _hiCachePurge() { + _hiCache = {}; + _hiCacheCount = 0; +} +const hiLengthMap = { + sha256: 32, + sha1: 20 +}; +function HI(data, salt, iterations, cryptoMethod) { + // omit the work if already generated + const key = [data, salt.toString('base64'), iterations].join('_'); + if (_hiCache[key] != null) { + return _hiCache[key]; + } + // generate the salt + const saltedData = crypto.pbkdf2Sync(data, salt, iterations, hiLengthMap[cryptoMethod], cryptoMethod); + // cache a copy to speed up the next lookup, but prevent unbounded cache growth + if (_hiCacheCount >= 200) { + _hiCachePurge(); + } + _hiCache[key] = saltedData; + _hiCacheCount += 1; + return saltedData; +} +function compareDigest(lhs, rhs) { + if (lhs.length !== rhs.length) { + return false; + } + if (typeof crypto.timingSafeEqual === 'function') { + return crypto.timingSafeEqual(lhs, rhs); + } + let result = 0; + for (let i = 0; i < lhs.length; i++) { + result |= lhs[i] ^ rhs[i]; + } + return result === 0; +} +class ScramSHA1 extends ScramSHA { + constructor() { + super('sha1'); + } +} +exports.ScramSHA1 = ScramSHA1; +class ScramSHA256 extends ScramSHA { + constructor() { + super('sha256'); + } +} +exports.ScramSHA256 = ScramSHA256; +//# sourceMappingURL=scram.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/scram.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/scram.js.map new file mode 100644 index 000000000..7bd9f399a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/scram.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/x509.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/x509.js new file mode 100644 index 000000000..6f431c49f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/x509.js @@ -0,0 +1,36 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.X509 = void 0; +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const auth_provider_1 = require("./auth_provider"); +class X509 extends auth_provider_1.AuthProvider { + async prepare(handshakeDoc, authContext) { + const { credentials } = authContext; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + return { ...handshakeDoc, speculativeAuthenticate: x509AuthenticateCommand(credentials) }; + } + async auth(authContext) { + const connection = authContext.connection; + const credentials = authContext.credentials; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + const response = authContext.response; + if (response?.speculativeAuthenticate) { + return; + } + await connection.command((0, utils_1.ns)('$external.$cmd'), x509AuthenticateCommand(credentials), undefined); + } +} +exports.X509 = X509; +function x509AuthenticateCommand(credentials) { + const command = { authenticate: 1, mechanism: 'MONGODB-X509' }; + if (credentials.username) { + command.user = credentials.username; + } + return command; +} +//# sourceMappingURL=x509.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/x509.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/x509.js.map new file mode 100644 index 000000000..2429b5877 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/auth/x509.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/command_monitoring_events.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/command_monitoring_events.js new file mode 100644 index 000000000..0969033ee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/command_monitoring_events.js @@ -0,0 +1,253 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.SENSITIVE_COMMANDS = exports.CommandFailedEvent = exports.CommandSucceededEvent = exports.CommandStartedEvent = void 0; +const constants_1 = require("../constants"); +const utils_1 = require("../utils"); +const commands_1 = require("./commands"); +/** + * An event indicating the start of a given command + * @public + * @category Event + */ +class CommandStartedEvent { + /** + * Create a started event + * + * @internal + * @param pool - the pool that originated the command + * @param command - the command + */ + constructor(connection, command, serverConnectionId) { + /** @internal */ + this.name = constants_1.COMMAND_STARTED; + const cmd = extractCommand(command); + const commandName = extractCommandName(cmd); + const { address, connectionId, serviceId } = extractConnectionDetails(connection); + // TODO: remove in major revision, this is not spec behavior + if (exports.SENSITIVE_COMMANDS.has(commandName)) { + this.commandObj = {}; + this.commandObj[commandName] = true; + } + this.address = address; + this.connectionId = connectionId; + this.serviceId = serviceId; + this.requestId = command.requestId; + this.databaseName = command.databaseName; + this.commandName = commandName; + this.command = maybeRedact(commandName, cmd, cmd); + this.serverConnectionId = serverConnectionId; + } + /* @internal */ + get hasServiceId() { + return !!this.serviceId; + } +} +exports.CommandStartedEvent = CommandStartedEvent; +/** + * An event indicating the success of a given command + * @public + * @category Event + */ +class CommandSucceededEvent { + /** + * Create a succeeded event + * + * @internal + * @param pool - the pool that originated the command + * @param command - the command + * @param reply - the reply for this command from the server + * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration + */ + constructor(connection, command, reply, started, serverConnectionId) { + /** @internal */ + this.name = constants_1.COMMAND_SUCCEEDED; + const cmd = extractCommand(command); + const commandName = extractCommandName(cmd); + const { address, connectionId, serviceId } = extractConnectionDetails(connection); + this.address = address; + this.connectionId = connectionId; + this.serviceId = serviceId; + this.requestId = command.requestId; + this.commandName = commandName; + this.duration = (0, utils_1.calculateDurationInMs)(started); + this.reply = maybeRedact(commandName, cmd, extractReply(command, reply)); + this.serverConnectionId = serverConnectionId; + } + /* @internal */ + get hasServiceId() { + return !!this.serviceId; + } +} +exports.CommandSucceededEvent = CommandSucceededEvent; +/** + * An event indicating the failure of a given command + * @public + * @category Event + */ +class CommandFailedEvent { + /** + * Create a failure event + * + * @internal + * @param pool - the pool that originated the command + * @param command - the command + * @param error - the generated error or a server error response + * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration + */ + constructor(connection, command, error, started, serverConnectionId) { + /** @internal */ + this.name = constants_1.COMMAND_FAILED; + const cmd = extractCommand(command); + const commandName = extractCommandName(cmd); + const { address, connectionId, serviceId } = extractConnectionDetails(connection); + this.address = address; + this.connectionId = connectionId; + this.serviceId = serviceId; + this.requestId = command.requestId; + this.commandName = commandName; + this.duration = (0, utils_1.calculateDurationInMs)(started); + this.failure = maybeRedact(commandName, cmd, error); + this.serverConnectionId = serverConnectionId; + } + /* @internal */ + get hasServiceId() { + return !!this.serviceId; + } +} +exports.CommandFailedEvent = CommandFailedEvent; +/** + * Commands that we want to redact because of the sensitive nature of their contents + * @internal + */ +exports.SENSITIVE_COMMANDS = new Set([ + 'authenticate', + 'saslStart', + 'saslContinue', + 'getnonce', + 'createUser', + 'updateUser', + 'copydbgetnonce', + 'copydbsaslstart', + 'copydb' +]); +const HELLO_COMMANDS = new Set(['hello', constants_1.LEGACY_HELLO_COMMAND, constants_1.LEGACY_HELLO_COMMAND_CAMEL_CASE]); +// helper methods +const extractCommandName = (commandDoc) => Object.keys(commandDoc)[0]; +const namespace = (command) => command.ns; +const collectionName = (command) => command.ns.split('.')[1]; +const maybeRedact = (commandName, commandDoc, result) => exports.SENSITIVE_COMMANDS.has(commandName) || + (HELLO_COMMANDS.has(commandName) && commandDoc.speculativeAuthenticate) + ? {} + : result; +const LEGACY_FIND_QUERY_MAP = { + $query: 'filter', + $orderby: 'sort', + $hint: 'hint', + $comment: 'comment', + $maxScan: 'maxScan', + $max: 'max', + $min: 'min', + $returnKey: 'returnKey', + $showDiskLoc: 'showRecordId', + $maxTimeMS: 'maxTimeMS', + $snapshot: 'snapshot' +}; +const LEGACY_FIND_OPTIONS_MAP = { + numberToSkip: 'skip', + numberToReturn: 'batchSize', + returnFieldSelector: 'projection' +}; +const OP_QUERY_KEYS = [ + 'tailable', + 'oplogReplay', + 'noCursorTimeout', + 'awaitData', + 'partial', + 'exhaust' +]; +/** Extract the actual command from the query, possibly up-converting if it's a legacy format */ +function extractCommand(command) { + if (command instanceof commands_1.OpMsgRequest) { + return (0, utils_1.deepCopy)(command.command); + } + if (command.query?.$query) { + let result; + if (command.ns === 'admin.$cmd') { + // up-convert legacy command + result = Object.assign({}, command.query.$query); + } + else { + // up-convert legacy find command + result = { find: collectionName(command) }; + Object.keys(LEGACY_FIND_QUERY_MAP).forEach(key => { + if (command.query[key] != null) { + result[LEGACY_FIND_QUERY_MAP[key]] = (0, utils_1.deepCopy)(command.query[key]); + } + }); + } + Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => { + const legacyKey = key; + if (command[legacyKey] != null) { + result[LEGACY_FIND_OPTIONS_MAP[legacyKey]] = (0, utils_1.deepCopy)(command[legacyKey]); + } + }); + OP_QUERY_KEYS.forEach(key => { + if (command[key]) { + result[key] = command[key]; + } + }); + if (command.pre32Limit != null) { + result.limit = command.pre32Limit; + } + if (command.query.$explain) { + return { explain: result }; + } + return result; + } + const clonedQuery = {}; + const clonedCommand = {}; + if (command.query) { + for (const k in command.query) { + clonedQuery[k] = (0, utils_1.deepCopy)(command.query[k]); + } + clonedCommand.query = clonedQuery; + } + for (const k in command) { + if (k === 'query') + continue; + clonedCommand[k] = (0, utils_1.deepCopy)(command[k]); + } + return command.query ? clonedQuery : clonedCommand; +} +function extractReply(command, reply) { + if (!reply) { + return reply; + } + if (command instanceof commands_1.OpMsgRequest) { + return (0, utils_1.deepCopy)(reply.result ? reply.result : reply); + } + // is this a legacy find command? + if (command.query && command.query.$query != null) { + return { + ok: 1, + cursor: { + id: (0, utils_1.deepCopy)(reply.cursorId), + ns: namespace(command), + firstBatch: (0, utils_1.deepCopy)(reply.documents) + } + }; + } + return (0, utils_1.deepCopy)(reply.result ? reply.result : reply); +} +function extractConnectionDetails(connection) { + let connectionId; + if ('id' in connection) { + connectionId = connection.id; + } + return { + address: connection.address, + serviceId: connection.serviceId, + connectionId + }; +} +//# sourceMappingURL=command_monitoring_events.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/command_monitoring_events.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/command_monitoring_events.js.map new file mode 100644 index 000000000..0b26ecb84 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/command_monitoring_events.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/commands.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/commands.js new file mode 100644 index 000000000..1c6388374 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/commands.js @@ -0,0 +1,444 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.OpCompressedRequest = exports.OpMsgResponse = exports.OpMsgRequest = exports.OpReply = exports.OpQueryRequest = void 0; +const BSON = require("../bson"); +const error_1 = require("../error"); +const compression_1 = require("./wire_protocol/compression"); +const constants_1 = require("./wire_protocol/constants"); +// Incrementing request id +let _requestId = 0; +// Query flags +const OPTS_TAILABLE_CURSOR = 2; +const OPTS_SECONDARY = 4; +const OPTS_OPLOG_REPLAY = 8; +const OPTS_NO_CURSOR_TIMEOUT = 16; +const OPTS_AWAIT_DATA = 32; +const OPTS_EXHAUST = 64; +const OPTS_PARTIAL = 128; +// Response flags +const CURSOR_NOT_FOUND = 1; +const QUERY_FAILURE = 2; +const SHARD_CONFIG_STALE = 4; +const AWAIT_CAPABLE = 8; +/** @internal */ +class OpQueryRequest { + constructor(databaseName, query, options) { + this.databaseName = databaseName; + this.query = query; + // Basic options needed to be passed in + // TODO(NODE-3483): Replace with MongoCommandError + const ns = `${databaseName}.$cmd`; + if (typeof databaseName !== 'string') { + throw new error_1.MongoRuntimeError('Database name must be a string for a query'); + } + // TODO(NODE-3483): Replace with MongoCommandError + if (query == null) + throw new error_1.MongoRuntimeError('A query document must be specified for query'); + // Validate that we are not passing 0x00 in the collection name + if (ns.indexOf('\x00') !== -1) { + // TODO(NODE-3483): Use MongoNamespace static method + throw new error_1.MongoRuntimeError('Namespace cannot contain a null character'); + } + // Basic options + this.ns = ns; + // Additional options + this.numberToSkip = options.numberToSkip || 0; + this.numberToReturn = options.numberToReturn || 0; + this.returnFieldSelector = options.returnFieldSelector || undefined; + this.requestId = options.requestId ?? OpQueryRequest.getRequestId(); + // special case for pre-3.2 find commands, delete ASAP + this.pre32Limit = options.pre32Limit; + // Serialization option + this.serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + this.ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false; + this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16; + this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + this.batchSize = this.numberToReturn; + // Flags + this.tailable = false; + this.secondaryOk = typeof options.secondaryOk === 'boolean' ? options.secondaryOk : false; + this.oplogReplay = false; + this.noCursorTimeout = false; + this.awaitData = false; + this.exhaust = false; + this.partial = false; + } + /** Assign next request Id. */ + incRequestId() { + this.requestId = _requestId++; + } + /** Peek next request Id. */ + nextRequestId() { + return _requestId + 1; + } + /** Increment then return next request Id. */ + static getRequestId() { + return ++_requestId; + } + // Uses a single allocated buffer for the process, avoiding multiple memory allocations + toBin() { + const buffers = []; + let projection = null; + // Set up the flags + let flags = 0; + if (this.tailable) { + flags |= OPTS_TAILABLE_CURSOR; + } + if (this.secondaryOk) { + flags |= OPTS_SECONDARY; + } + if (this.oplogReplay) { + flags |= OPTS_OPLOG_REPLAY; + } + if (this.noCursorTimeout) { + flags |= OPTS_NO_CURSOR_TIMEOUT; + } + if (this.awaitData) { + flags |= OPTS_AWAIT_DATA; + } + if (this.exhaust) { + flags |= OPTS_EXHAUST; + } + if (this.partial) { + flags |= OPTS_PARTIAL; + } + // If batchSize is different to this.numberToReturn + if (this.batchSize !== this.numberToReturn) + this.numberToReturn = this.batchSize; + // Allocate write protocol header buffer + const header = Buffer.alloc(4 * 4 + // Header + 4 + // Flags + Buffer.byteLength(this.ns) + + 1 + // namespace + 4 + // numberToSkip + 4 // numberToReturn + ); + // Add header to buffers + buffers.push(header); + // Serialize the query + const query = BSON.serialize(this.query, { + checkKeys: this.checkKeys, + serializeFunctions: this.serializeFunctions, + ignoreUndefined: this.ignoreUndefined + }); + // Add query document + buffers.push(query); + if (this.returnFieldSelector && Object.keys(this.returnFieldSelector).length > 0) { + // Serialize the projection document + projection = BSON.serialize(this.returnFieldSelector, { + checkKeys: this.checkKeys, + serializeFunctions: this.serializeFunctions, + ignoreUndefined: this.ignoreUndefined + }); + // Add projection document + buffers.push(projection); + } + // Total message size + const totalLength = header.length + query.length + (projection ? projection.length : 0); + // Set up the index + let index = 4; + // Write total document length + header[3] = (totalLength >> 24) & 0xff; + header[2] = (totalLength >> 16) & 0xff; + header[1] = (totalLength >> 8) & 0xff; + header[0] = totalLength & 0xff; + // Write header information requestId + header[index + 3] = (this.requestId >> 24) & 0xff; + header[index + 2] = (this.requestId >> 16) & 0xff; + header[index + 1] = (this.requestId >> 8) & 0xff; + header[index] = this.requestId & 0xff; + index = index + 4; + // Write header information responseTo + header[index + 3] = (0 >> 24) & 0xff; + header[index + 2] = (0 >> 16) & 0xff; + header[index + 1] = (0 >> 8) & 0xff; + header[index] = 0 & 0xff; + index = index + 4; + // Write header information OP_QUERY + header[index + 3] = (constants_1.OP_QUERY >> 24) & 0xff; + header[index + 2] = (constants_1.OP_QUERY >> 16) & 0xff; + header[index + 1] = (constants_1.OP_QUERY >> 8) & 0xff; + header[index] = constants_1.OP_QUERY & 0xff; + index = index + 4; + // Write header information flags + header[index + 3] = (flags >> 24) & 0xff; + header[index + 2] = (flags >> 16) & 0xff; + header[index + 1] = (flags >> 8) & 0xff; + header[index] = flags & 0xff; + index = index + 4; + // Write collection name + index = index + header.write(this.ns, index, 'utf8') + 1; + header[index - 1] = 0; + // Write header information flags numberToSkip + header[index + 3] = (this.numberToSkip >> 24) & 0xff; + header[index + 2] = (this.numberToSkip >> 16) & 0xff; + header[index + 1] = (this.numberToSkip >> 8) & 0xff; + header[index] = this.numberToSkip & 0xff; + index = index + 4; + // Write header information flags numberToReturn + header[index + 3] = (this.numberToReturn >> 24) & 0xff; + header[index + 2] = (this.numberToReturn >> 16) & 0xff; + header[index + 1] = (this.numberToReturn >> 8) & 0xff; + header[index] = this.numberToReturn & 0xff; + index = index + 4; + // Return the buffers + return buffers; + } +} +exports.OpQueryRequest = OpQueryRequest; +/** @internal */ +class OpReply { + constructor(message, msgHeader, msgBody, opts) { + this.index = 0; + this.sections = []; + /** moreToCome is an OP_MSG only concept */ + this.moreToCome = false; + this.parsed = false; + this.raw = message; + this.data = msgBody; + this.opts = opts ?? { + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: false, + bsonRegExp: false + }; + // Read the message header + this.length = msgHeader.length; + this.requestId = msgHeader.requestId; + this.responseTo = msgHeader.responseTo; + this.opCode = msgHeader.opCode; + this.fromCompressed = msgHeader.fromCompressed; + // Flag values + this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false; + this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true; + this.promoteValues = + typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true; + this.promoteBuffers = + typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false; + this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false; + } + isParsed() { + return this.parsed; + } + parse() { + // Don't parse again if not needed + if (this.parsed) + return this.sections[0]; + // Position within OP_REPLY at which documents start + // (See https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#wire-op-reply) + this.index = 20; + // Read the message body + this.responseFlags = this.data.readInt32LE(0); + this.cursorId = new BSON.Long(this.data.readInt32LE(4), this.data.readInt32LE(8)); + this.startingFrom = this.data.readInt32LE(12); + this.numberReturned = this.data.readInt32LE(16); + if (this.numberReturned < 0 || this.numberReturned > 2 ** 32 - 1) { + throw new RangeError(`OP_REPLY numberReturned is an invalid array length ${this.numberReturned}`); + } + this.cursorNotFound = (this.responseFlags & CURSOR_NOT_FOUND) !== 0; + this.queryFailure = (this.responseFlags & QUERY_FAILURE) !== 0; + this.shardConfigStale = (this.responseFlags & SHARD_CONFIG_STALE) !== 0; + this.awaitCapable = (this.responseFlags & AWAIT_CAPABLE) !== 0; + // Parse Body + for (let i = 0; i < this.numberReturned; i++) { + const bsonSize = this.data[this.index] | + (this.data[this.index + 1] << 8) | + (this.data[this.index + 2] << 16) | + (this.data[this.index + 3] << 24); + const section = this.data.subarray(this.index, this.index + bsonSize); + this.sections.push(section); + // Adjust the index + this.index = this.index + bsonSize; + } + // Set parsed + this.parsed = true; + return this.sections[0]; + } +} +exports.OpReply = OpReply; +// Msg Flags +const OPTS_CHECKSUM_PRESENT = 1; +const OPTS_MORE_TO_COME = 2; +const OPTS_EXHAUST_ALLOWED = 1 << 16; +/** @internal */ +class OpMsgRequest { + constructor(databaseName, command, options) { + this.databaseName = databaseName; + this.command = command; + this.options = options; + // Basic options needed to be passed in + if (command == null) + throw new error_1.MongoInvalidArgumentError('Query document must be specified for query'); + // Basic options + this.command.$db = databaseName; + // Ensure empty options + this.options = options ?? {}; + // Additional options + this.requestId = options.requestId ? options.requestId : OpMsgRequest.getRequestId(); + // Serialization option + this.serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + this.ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false; + this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16; + // flags + this.checksumPresent = false; + this.moreToCome = options.moreToCome || false; + this.exhaustAllowed = + typeof options.exhaustAllowed === 'boolean' ? options.exhaustAllowed : false; + } + toBin() { + const buffers = []; + let flags = 0; + if (this.checksumPresent) { + flags |= OPTS_CHECKSUM_PRESENT; + } + if (this.moreToCome) { + flags |= OPTS_MORE_TO_COME; + } + if (this.exhaustAllowed) { + flags |= OPTS_EXHAUST_ALLOWED; + } + const header = Buffer.alloc(4 * 4 + // Header + 4 // Flags + ); + buffers.push(header); + let totalLength = header.length; + const command = this.command; + totalLength += this.makeDocumentSegment(buffers, command); + header.writeInt32LE(totalLength, 0); // messageLength + header.writeInt32LE(this.requestId, 4); // requestID + header.writeInt32LE(0, 8); // responseTo + header.writeInt32LE(constants_1.OP_MSG, 12); // opCode + header.writeUInt32LE(flags, 16); // flags + return buffers; + } + makeDocumentSegment(buffers, document) { + const payloadTypeBuffer = Buffer.alloc(1); + payloadTypeBuffer[0] = 0; + const documentBuffer = this.serializeBson(document); + buffers.push(payloadTypeBuffer); + buffers.push(documentBuffer); + return payloadTypeBuffer.length + documentBuffer.length; + } + serializeBson(document) { + return BSON.serialize(document, { + checkKeys: this.checkKeys, + serializeFunctions: this.serializeFunctions, + ignoreUndefined: this.ignoreUndefined + }); + } + static getRequestId() { + _requestId = (_requestId + 1) & 0x7fffffff; + return _requestId; + } +} +exports.OpMsgRequest = OpMsgRequest; +/** @internal */ +class OpMsgResponse { + constructor(message, msgHeader, msgBody, opts) { + this.index = 0; + this.sections = []; + this.parsed = false; + this.raw = message; + this.data = msgBody; + this.opts = opts ?? { + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: false, + bsonRegExp: false + }; + // Read the message header + this.length = msgHeader.length; + this.requestId = msgHeader.requestId; + this.responseTo = msgHeader.responseTo; + this.opCode = msgHeader.opCode; + this.fromCompressed = msgHeader.fromCompressed; + // Read response flags + this.responseFlags = msgBody.readInt32LE(0); + this.checksumPresent = (this.responseFlags & OPTS_CHECKSUM_PRESENT) !== 0; + this.moreToCome = (this.responseFlags & OPTS_MORE_TO_COME) !== 0; + this.exhaustAllowed = (this.responseFlags & OPTS_EXHAUST_ALLOWED) !== 0; + this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false; + this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true; + this.promoteValues = + typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true; + this.promoteBuffers = + typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false; + this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false; + } + isParsed() { + return this.parsed; + } + parse() { + // Don't parse again if not needed + if (this.parsed) + return this.sections[0]; + this.index = 4; + while (this.index < this.data.length) { + const payloadType = this.data.readUInt8(this.index++); + if (payloadType === 0) { + const bsonSize = this.data.readUInt32LE(this.index); + const bin = this.data.subarray(this.index, this.index + bsonSize); + this.sections.push(bin); + this.index += bsonSize; + } + else if (payloadType === 1) { + // It was decided that no driver makes use of payload type 1 + // TODO(NODE-3483): Replace with MongoDeprecationError + throw new error_1.MongoRuntimeError('OP_MSG Payload Type 1 detected unsupported protocol'); + } + } + this.parsed = true; + return this.sections[0]; + } +} +exports.OpMsgResponse = OpMsgResponse; +const MESSAGE_HEADER_SIZE = 16; +const COMPRESSION_DETAILS_SIZE = 9; // originalOpcode + uncompressedSize, compressorID +/** + * @internal + * + * An OP_COMPRESSED request wraps either an OP_QUERY or OP_MSG message. + */ +class OpCompressedRequest { + constructor(command, options) { + this.command = command; + this.options = options; + } + // Return whether a command contains an uncompressible command term + // Will return true if command contains no uncompressible command terms + static canCompress(command) { + const commandDoc = command instanceof OpMsgRequest ? command.command : command.query; + const commandName = Object.keys(commandDoc)[0]; + return !compression_1.uncompressibleCommands.has(commandName); + } + async toBin() { + const concatenatedOriginalCommandBuffer = Buffer.concat(this.command.toBin()); + // otherwise, compress the message + const messageToBeCompressed = concatenatedOriginalCommandBuffer.slice(MESSAGE_HEADER_SIZE); + // Extract information needed for OP_COMPRESSED from the uncompressed message + const originalCommandOpCode = concatenatedOriginalCommandBuffer.readInt32LE(12); + // Compress the message body + const compressedMessage = await (0, compression_1.compress)(this.options, messageToBeCompressed); + // Create the msgHeader of OP_COMPRESSED + const msgHeader = Buffer.alloc(MESSAGE_HEADER_SIZE); + msgHeader.writeInt32LE(MESSAGE_HEADER_SIZE + COMPRESSION_DETAILS_SIZE + compressedMessage.length, 0); // messageLength + msgHeader.writeInt32LE(this.command.requestId, 4); // requestID + msgHeader.writeInt32LE(0, 8); // responseTo (zero) + msgHeader.writeInt32LE(constants_1.OP_COMPRESSED, 12); // opCode + // Create the compression details of OP_COMPRESSED + const compressionDetails = Buffer.alloc(COMPRESSION_DETAILS_SIZE); + compressionDetails.writeInt32LE(originalCommandOpCode, 0); // originalOpcode + compressionDetails.writeInt32LE(messageToBeCompressed.length, 4); // Size of the uncompressed compressedMessage, excluding the MsgHeader + compressionDetails.writeUInt8(compression_1.Compressor[this.options.agreedCompressor], 8); // compressorID + return [msgHeader, compressionDetails, compressedMessage]; + } +} +exports.OpCompressedRequest = OpCompressedRequest; +//# sourceMappingURL=commands.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/commands.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/commands.js.map new file mode 100644 index 000000000..9b4414208 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/commands.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connect.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connect.js new file mode 100644 index 000000000..a2f94f425 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connect.js @@ -0,0 +1,364 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.makeSocket = exports.LEGAL_TCP_SOCKET_OPTIONS = exports.LEGAL_TLS_SOCKET_OPTIONS = exports.prepareHandshakeDocument = exports.performInitialHandshake = exports.makeConnection = exports.connect = void 0; +const net = require("net"); +const tls = require("tls"); +const constants_1 = require("../constants"); +const deps_1 = require("../deps"); +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const auth_provider_1 = require("./auth/auth_provider"); +const providers_1 = require("./auth/providers"); +const connection_1 = require("./connection"); +const constants_2 = require("./wire_protocol/constants"); +async function connect(options) { + let connection = null; + try { + const socket = await makeSocket(options); + connection = makeConnection(options, socket); + await performInitialHandshake(connection, options); + return connection; + } + catch (error) { + connection?.destroy(); + throw error; + } +} +exports.connect = connect; +function makeConnection(options, socket) { + let ConnectionType = options.connectionType ?? connection_1.Connection; + if (options.autoEncrypter) { + ConnectionType = connection_1.CryptoConnection; + } + return new ConnectionType(socket, options); +} +exports.makeConnection = makeConnection; +function checkSupportedServer(hello, options) { + const maxWireVersion = Number(hello.maxWireVersion); + const minWireVersion = Number(hello.minWireVersion); + const serverVersionHighEnough = !Number.isNaN(maxWireVersion) && maxWireVersion >= constants_2.MIN_SUPPORTED_WIRE_VERSION; + const serverVersionLowEnough = !Number.isNaN(minWireVersion) && minWireVersion <= constants_2.MAX_SUPPORTED_WIRE_VERSION; + if (serverVersionHighEnough) { + if (serverVersionLowEnough) { + return null; + } + const message = `Server at ${options.hostAddress} reports minimum wire version ${JSON.stringify(hello.minWireVersion)}, but this version of the Node.js Driver requires at most ${constants_2.MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${constants_2.MAX_SUPPORTED_SERVER_VERSION})`; + return new error_1.MongoCompatibilityError(message); + } + const message = `Server at ${options.hostAddress} reports maximum wire version ${JSON.stringify(hello.maxWireVersion) ?? 0}, but this version of the Node.js Driver requires at least ${constants_2.MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${constants_2.MIN_SUPPORTED_SERVER_VERSION})`; + return new error_1.MongoCompatibilityError(message); +} +async function performInitialHandshake(conn, options) { + const credentials = options.credentials; + if (credentials) { + if (!(credentials.mechanism === providers_1.AuthMechanism.MONGODB_DEFAULT) && + !options.authProviders.getOrCreateProvider(credentials.mechanism)) { + throw new error_1.MongoInvalidArgumentError(`AuthMechanism '${credentials.mechanism}' not supported`); + } + } + const authContext = new auth_provider_1.AuthContext(conn, credentials, options); + conn.authContext = authContext; + const handshakeDoc = await prepareHandshakeDocument(authContext); + // @ts-expect-error: TODO(NODE-5141): The options need to be filtered properly, Connection options differ from Command options + const handshakeOptions = { ...options, raw: false }; + if (typeof options.connectTimeoutMS === 'number') { + // The handshake technically is a monitoring check, so its socket timeout should be connectTimeoutMS + handshakeOptions.socketTimeoutMS = options.connectTimeoutMS; + } + const start = new Date().getTime(); + const response = await conn.command((0, utils_1.ns)('admin.$cmd'), handshakeDoc, handshakeOptions); + if (!('isWritablePrimary' in response)) { + // Provide hello-style response document. + response.isWritablePrimary = response[constants_1.LEGACY_HELLO_COMMAND]; + } + if (response.helloOk) { + conn.helloOk = true; + } + const supportedServerErr = checkSupportedServer(response, options); + if (supportedServerErr) { + throw supportedServerErr; + } + if (options.loadBalanced) { + if (!response.serviceId) { + throw new error_1.MongoCompatibilityError('Driver attempted to initialize in load balancing mode, ' + + 'but the server does not support this mode.'); + } + } + // NOTE: This is metadata attached to the connection while porting away from + // handshake being done in the `Server` class. Likely, it should be + // relocated, or at very least restructured. + conn.hello = response; + conn.lastHelloMS = new Date().getTime() - start; + if (!response.arbiterOnly && credentials) { + // store the response on auth context + authContext.response = response; + const resolvedCredentials = credentials.resolveAuthMechanism(response); + const provider = options.authProviders.getOrCreateProvider(resolvedCredentials.mechanism); + if (!provider) { + throw new error_1.MongoInvalidArgumentError(`No AuthProvider for ${resolvedCredentials.mechanism} defined.`); + } + try { + await provider.auth(authContext); + } + catch (error) { + if (error instanceof error_1.MongoError) { + error.addErrorLabel(error_1.MongoErrorLabel.HandshakeError); + if ((0, error_1.needsRetryableWriteLabel)(error, response.maxWireVersion)) { + error.addErrorLabel(error_1.MongoErrorLabel.RetryableWriteError); + } + } + throw error; + } + } + // Connection establishment is socket creation (tcp handshake, tls handshake, MongoDB handshake (saslStart, saslContinue)) + // Once connection is established, command logging can log events (if enabled) + conn.established = true; +} +exports.performInitialHandshake = performInitialHandshake; +/** + * @internal + * + * This function is only exposed for testing purposes. + */ +async function prepareHandshakeDocument(authContext) { + const options = authContext.options; + const compressors = options.compressors ? options.compressors : []; + const { serverApi } = authContext.connection; + const clientMetadata = await options.extendedMetadata; + const handshakeDoc = { + [serverApi?.version || options.loadBalanced === true ? 'hello' : constants_1.LEGACY_HELLO_COMMAND]: 1, + helloOk: true, + client: clientMetadata, + compression: compressors + }; + if (options.loadBalanced === true) { + handshakeDoc.loadBalanced = true; + } + const credentials = authContext.credentials; + if (credentials) { + if (credentials.mechanism === providers_1.AuthMechanism.MONGODB_DEFAULT && credentials.username) { + handshakeDoc.saslSupportedMechs = `${credentials.source}.${credentials.username}`; + const provider = authContext.options.authProviders.getOrCreateProvider(providers_1.AuthMechanism.MONGODB_SCRAM_SHA256); + if (!provider) { + // This auth mechanism is always present. + throw new error_1.MongoInvalidArgumentError(`No AuthProvider for ${providers_1.AuthMechanism.MONGODB_SCRAM_SHA256} defined.`); + } + return await provider.prepare(handshakeDoc, authContext); + } + const provider = authContext.options.authProviders.getOrCreateProvider(credentials.mechanism); + if (!provider) { + throw new error_1.MongoInvalidArgumentError(`No AuthProvider for ${credentials.mechanism} defined.`); + } + return await provider.prepare(handshakeDoc, authContext); + } + return handshakeDoc; +} +exports.prepareHandshakeDocument = prepareHandshakeDocument; +/** @public */ +exports.LEGAL_TLS_SOCKET_OPTIONS = [ + 'ALPNProtocols', + 'ca', + 'cert', + 'checkServerIdentity', + 'ciphers', + 'crl', + 'ecdhCurve', + 'key', + 'minDHSize', + 'passphrase', + 'pfx', + 'rejectUnauthorized', + 'secureContext', + 'secureProtocol', + 'servername', + 'session' +]; +/** @public */ +exports.LEGAL_TCP_SOCKET_OPTIONS = [ + 'family', + 'hints', + 'localAddress', + 'localPort', + 'lookup' +]; +function parseConnectOptions(options) { + const hostAddress = options.hostAddress; + if (!hostAddress) + throw new error_1.MongoInvalidArgumentError('Option "hostAddress" is required'); + const result = {}; + for (const name of exports.LEGAL_TCP_SOCKET_OPTIONS) { + if (options[name] != null) { + result[name] = options[name]; + } + } + if (typeof hostAddress.socketPath === 'string') { + result.path = hostAddress.socketPath; + return result; + } + else if (typeof hostAddress.host === 'string') { + result.host = hostAddress.host; + result.port = hostAddress.port; + return result; + } + else { + // This should never happen since we set up HostAddresses + // But if we don't throw here the socket could hang until timeout + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError(`Unexpected HostAddress ${JSON.stringify(hostAddress)}`); + } +} +function parseSslOptions(options) { + const result = parseConnectOptions(options); + // Merge in valid SSL options + for (const name of exports.LEGAL_TLS_SOCKET_OPTIONS) { + if (options[name] != null) { + result[name] = options[name]; + } + } + if (options.existingSocket) { + result.socket = options.existingSocket; + } + // Set default sni servername to be the same as host + if (result.servername == null && result.host && !net.isIP(result.host)) { + result.servername = result.host; + } + return result; +} +async function makeSocket(options) { + const useTLS = options.tls ?? false; + const noDelay = options.noDelay ?? true; + const connectTimeoutMS = options.connectTimeoutMS ?? 30000; + const existingSocket = options.existingSocket; + let socket; + if (options.proxyHost != null) { + // Currently, only Socks5 is supported. + return await makeSocks5Connection({ + ...options, + connectTimeoutMS // Should always be present for Socks5 + }); + } + if (useTLS) { + const tlsSocket = tls.connect(parseSslOptions(options)); + if (typeof tlsSocket.disableRenegotiation === 'function') { + tlsSocket.disableRenegotiation(); + } + socket = tlsSocket; + } + else if (existingSocket) { + // In the TLS case, parseSslOptions() sets options.socket to existingSocket, + // so we only need to handle the non-TLS case here (where existingSocket + // gives us all we need out of the box). + socket = existingSocket; + } + else { + socket = net.createConnection(parseConnectOptions(options)); + } + socket.setKeepAlive(true, 300000); + socket.setTimeout(connectTimeoutMS); + socket.setNoDelay(noDelay); + let cancellationHandler = null; + const { promise: connectedSocket, resolve, reject } = (0, utils_1.promiseWithResolvers)(); + if (existingSocket) { + resolve(socket); + } + else { + const connectEvent = useTLS ? 'secureConnect' : 'connect'; + socket + .once(connectEvent, () => resolve(socket)) + .once('error', error => reject(connectionFailureError('error', error))) + .once('timeout', () => reject(connectionFailureError('timeout'))) + .once('close', () => reject(connectionFailureError('close'))); + if (options.cancellationToken != null) { + cancellationHandler = () => reject(connectionFailureError('cancel')); + options.cancellationToken.once('cancel', cancellationHandler); + } + } + try { + socket = await connectedSocket; + return socket; + } + catch (error) { + socket.destroy(); + throw error; + } + finally { + socket.setTimeout(0); + socket.removeAllListeners(); + if (cancellationHandler != null) { + options.cancellationToken?.removeListener('cancel', cancellationHandler); + } + } +} +exports.makeSocket = makeSocket; +let socks = null; +function loadSocks() { + if (socks == null) { + const socksImport = (0, deps_1.getSocks)(); + if ('kModuleError' in socksImport) { + throw socksImport.kModuleError; + } + socks = socksImport; + } + return socks; +} +async function makeSocks5Connection(options) { + const hostAddress = utils_1.HostAddress.fromHostPort(options.proxyHost ?? '', // proxyHost is guaranteed to set here + options.proxyPort ?? 1080); + // First, connect to the proxy server itself: + const rawSocket = await makeSocket({ + ...options, + hostAddress, + tls: false, + proxyHost: undefined + }); + const destination = parseConnectOptions(options); + if (typeof destination.host !== 'string' || typeof destination.port !== 'number') { + throw new error_1.MongoInvalidArgumentError('Can only make Socks5 connections to TCP hosts'); + } + socks ??= loadSocks(); + try { + // Then, establish the Socks5 proxy connection: + const { socket } = await socks.SocksClient.createConnection({ + existing_socket: rawSocket, + timeout: options.connectTimeoutMS, + command: 'connect', + destination: { + host: destination.host, + port: destination.port + }, + proxy: { + // host and port are ignored because we pass existing_socket + host: 'iLoveJavaScript', + port: 0, + type: 5, + userId: options.proxyUsername || undefined, + password: options.proxyPassword || undefined + } + }); + // Finally, now treat the resulting duplex stream as the + // socket over which we send and receive wire protocol messages: + return await makeSocket({ + ...options, + existingSocket: socket, + proxyHost: undefined + }); + } + catch (error) { + throw connectionFailureError('error', error); + } +} +function connectionFailureError(type, cause) { + switch (type) { + case 'error': + return new error_1.MongoNetworkError(error_1.MongoError.buildErrorMessage(cause), { cause }); + case 'timeout': + return new error_1.MongoNetworkTimeoutError('connection timed out'); + case 'close': + return new error_1.MongoNetworkError('connection closed'); + case 'cancel': + return new error_1.MongoNetworkError('connection establishment was cancelled'); + default: + return new error_1.MongoNetworkError('unknown network error'); + } +} +//# sourceMappingURL=connect.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connect.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connect.js.map new file mode 100644 index 000000000..e5d6b6204 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connect.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection.js new file mode 100644 index 000000000..9859e2882 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection.js @@ -0,0 +1,482 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CryptoConnection = exports.SizedMessageTransform = exports.Connection = exports.hasSessionSupport = void 0; +const stream_1 = require("stream"); +const timers_1 = require("timers"); +const constants_1 = require("../constants"); +const error_1 = require("../error"); +const mongo_logger_1 = require("../mongo_logger"); +const mongo_types_1 = require("../mongo_types"); +const read_preference_1 = require("../read_preference"); +const common_1 = require("../sdam/common"); +const sessions_1 = require("../sessions"); +const utils_1 = require("../utils"); +const command_monitoring_events_1 = require("./command_monitoring_events"); +const commands_1 = require("./commands"); +const stream_description_1 = require("./stream_description"); +const compression_1 = require("./wire_protocol/compression"); +const on_data_1 = require("./wire_protocol/on_data"); +const responses_1 = require("./wire_protocol/responses"); +const shared_1 = require("./wire_protocol/shared"); +/** @internal */ +function hasSessionSupport(conn) { + const description = conn.description; + return description.logicalSessionTimeoutMinutes != null; +} +exports.hasSessionSupport = hasSessionSupport; +function streamIdentifier(stream, options) { + if (options.proxyHost) { + // If proxy options are specified, the properties of `stream` itself + // will not accurately reflect what endpoint this is connected to. + return options.hostAddress.toString(); + } + const { remoteAddress, remotePort } = stream; + if (typeof remoteAddress === 'string' && typeof remotePort === 'number') { + return utils_1.HostAddress.fromHostPort(remoteAddress, remotePort).toString(); + } + return (0, utils_1.uuidV4)().toString('hex'); +} +/** @internal */ +class Connection extends mongo_types_1.TypedEventEmitter { + constructor(stream, options) { + super(); + this.lastHelloMS = -1; + this.helloOk = false; + this.delayedTimeoutId = null; + /** Indicates that the connection (including underlying TCP socket) has been closed. */ + this.closed = false; + this.clusterTime = null; + this.error = null; + this.dataEvents = null; + this.socket = stream; + this.id = options.id; + this.address = streamIdentifier(stream, options); + this.socketTimeoutMS = options.socketTimeoutMS ?? 0; + this.monitorCommands = options.monitorCommands; + this.serverApi = options.serverApi; + this.mongoLogger = options.mongoLogger; + this.established = false; + this.description = new stream_description_1.StreamDescription(this.address, options); + this.generation = options.generation; + this.lastUseTime = (0, utils_1.now)(); + this.messageStream = this.socket + .on('error', this.onError.bind(this)) + .pipe(new SizedMessageTransform({ connection: this })) + .on('error', this.onError.bind(this)); + this.socket.on('close', this.onClose.bind(this)); + this.socket.on('timeout', this.onTimeout.bind(this)); + } + get hello() { + return this.description.hello; + } + // the `connect` method stores the result of the handshake hello on the connection + set hello(response) { + this.description.receiveResponse(response); + Object.freeze(this.description); + } + get serviceId() { + return this.hello?.serviceId; + } + get loadBalanced() { + return this.description.loadBalanced; + } + get idleTime() { + return (0, utils_1.calculateDurationInMs)(this.lastUseTime); + } + get hasSessionSupport() { + return this.description.logicalSessionTimeoutMinutes != null; + } + get supportsOpMsg() { + return (this.description != null && + (0, utils_1.maxWireVersion)(this) >= 6 && + !this.description.__nodejs_mock_server__); + } + get shouldEmitAndLogCommand() { + return ((this.monitorCommands || + (this.established && + !this.authContext?.reauthenticating && + this.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.COMMAND, mongo_logger_1.SeverityLevel.DEBUG))) ?? + false); + } + markAvailable() { + this.lastUseTime = (0, utils_1.now)(); + } + onError(error) { + this.cleanup(error); + } + onClose() { + const message = `connection ${this.id} to ${this.address} closed`; + this.cleanup(new error_1.MongoNetworkError(message)); + } + onTimeout() { + this.delayedTimeoutId = (0, timers_1.setTimeout)(() => { + const message = `connection ${this.id} to ${this.address} timed out`; + const beforeHandshake = this.hello == null; + this.cleanup(new error_1.MongoNetworkTimeoutError(message, { beforeHandshake })); + }, 1).unref(); // No need for this timer to hold the event loop open + } + destroy() { + if (this.closed) { + return; + } + // load balanced mode requires that these listeners remain on the connection + // after cleanup on timeouts, errors or close so we remove them before calling + // cleanup. + this.removeAllListeners(Connection.PINNED); + this.removeAllListeners(Connection.UNPINNED); + const message = `connection ${this.id} to ${this.address} closed`; + this.cleanup(new error_1.MongoNetworkError(message)); + } + /** + * A method that cleans up the connection. When `force` is true, this method + * forcibly destroys the socket. + * + * If an error is provided, any in-flight operations will be closed with the error. + * + * This method does nothing if the connection is already closed. + */ + cleanup(error) { + if (this.closed) { + return; + } + this.socket.destroy(); + this.error = error; + // eslint-disable-next-line github/no-then + this.dataEvents?.throw(error).then(undefined, utils_1.squashError); + this.closed = true; + this.emit(Connection.CLOSE); + } + prepareCommand(db, command, options) { + let cmd = { ...command }; + const readPreference = (0, shared_1.getReadPreference)(options); + const session = options?.session; + let clusterTime = this.clusterTime; + if (this.serverApi) { + const { version, strict, deprecationErrors } = this.serverApi; + cmd.apiVersion = version; + if (strict != null) + cmd.apiStrict = strict; + if (deprecationErrors != null) + cmd.apiDeprecationErrors = deprecationErrors; + } + if (this.hasSessionSupport && session) { + if (session.clusterTime && + clusterTime && + session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime)) { + clusterTime = session.clusterTime; + } + const sessionError = (0, sessions_1.applySession)(session, cmd, options); + if (sessionError) + throw sessionError; + } + else if (session?.explicit) { + throw new error_1.MongoCompatibilityError('Current topology does not support sessions'); + } + // if we have a known cluster time, gossip it + if (clusterTime) { + cmd.$clusterTime = clusterTime; + } + // For standalone, drivers MUST NOT set $readPreference. + if (this.description.type !== common_1.ServerType.Standalone) { + if (!(0, shared_1.isSharded)(this) && + !this.description.loadBalanced && + this.supportsOpMsg && + options.directConnection === true && + readPreference?.mode === 'primary') { + // For mongos and load balancers with 'primary' mode, drivers MUST NOT set $readPreference. + // For all other types with a direct connection, if the read preference is 'primary' + // (driver sets 'primary' as default if no read preference is configured), + // the $readPreference MUST be set to 'primaryPreferred' + // to ensure that any server type can handle the request. + cmd.$readPreference = read_preference_1.ReadPreference.primaryPreferred.toJSON(); + } + else if ((0, shared_1.isSharded)(this) && !this.supportsOpMsg && readPreference?.mode !== 'primary') { + // When sending a read operation via OP_QUERY and the $readPreference modifier, + // the query MUST be provided using the $query modifier. + cmd = { + $query: cmd, + $readPreference: readPreference.toJSON() + }; + } + else if (readPreference?.mode !== 'primary') { + // For mode 'primary', drivers MUST NOT set $readPreference. + // For all other read preference modes (i.e. 'secondary', 'primaryPreferred', ...), + // drivers MUST set $readPreference + cmd.$readPreference = readPreference.toJSON(); + } + } + const commandOptions = { + numberToSkip: 0, + numberToReturn: -1, + checkKeys: false, + // This value is not overridable + secondaryOk: readPreference.secondaryOk(), + ...options + }; + const message = this.supportsOpMsg + ? new commands_1.OpMsgRequest(db, cmd, commandOptions) + : new commands_1.OpQueryRequest(db, cmd, commandOptions); + return message; + } + async *sendWire(message, options, responseType) { + this.throwIfAborted(); + if (typeof options.socketTimeoutMS === 'number') { + this.socket.setTimeout(options.socketTimeoutMS); + } + else if (this.socketTimeoutMS !== 0) { + this.socket.setTimeout(this.socketTimeoutMS); + } + try { + await this.writeCommand(message, { + agreedCompressor: this.description.compressor ?? 'none', + zlibCompressionLevel: this.description.zlibCompressionLevel + }); + if (options.noResponse) { + yield responses_1.MongoDBResponse.empty; + return; + } + this.throwIfAborted(); + for await (const response of this.readMany()) { + this.socket.setTimeout(0); + const bson = response.parse(); + const document = responseType == null + ? new responses_1.MongoDBResponse(bson) + : (0, responses_1.isErrorResponse)(bson) + ? new responses_1.MongoDBResponse(bson) + : new responseType(bson); + yield document; + this.throwIfAborted(); + if (typeof options.socketTimeoutMS === 'number') { + this.socket.setTimeout(options.socketTimeoutMS); + } + else if (this.socketTimeoutMS !== 0) { + this.socket.setTimeout(this.socketTimeoutMS); + } + } + } + finally { + this.socket.setTimeout(0); + } + } + async *sendCommand(ns, command, options, responseType) { + const message = this.prepareCommand(ns.db, command, options); + let started = 0; + if (this.shouldEmitAndLogCommand) { + started = (0, utils_1.now)(); + this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_STARTED, message.databaseName, this.established, new command_monitoring_events_1.CommandStartedEvent(this, message, this.description.serverConnectionId)); + } + // If `documentsReturnedIn` not set or raw is not enabled, use input bson options + // Otherwise, support raw flag. Raw only works for cursors that hardcode firstBatch/nextBatch fields + const bsonOptions = options.documentsReturnedIn == null || !options.raw + ? options + : { + ...options, + raw: false, + fieldsAsRaw: { [options.documentsReturnedIn]: true } + }; + /** MongoDBResponse instance or subclass */ + let document = undefined; + /** Cached result of a toObject call */ + let object = undefined; + try { + this.throwIfAborted(); + for await (document of this.sendWire(message, options, responseType)) { + object = undefined; + if (options.session != null) { + (0, sessions_1.updateSessionFromResponse)(options.session, document); + } + if (document.$clusterTime) { + this.clusterTime = document.$clusterTime; + this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime); + } + if (document.has('writeConcernError')) { + object ??= document.toObject(bsonOptions); + throw new error_1.MongoWriteConcernError(object.writeConcernError, object); + } + if (document.isError) { + throw new error_1.MongoServerError((object ??= document.toObject(bsonOptions))); + } + if (this.shouldEmitAndLogCommand) { + this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_SUCCEEDED, message.databaseName, this.established, new command_monitoring_events_1.CommandSucceededEvent(this, message, options.noResponse ? undefined : (object ??= document.toObject(bsonOptions)), started, this.description.serverConnectionId)); + } + if (responseType == null) { + yield (object ??= document.toObject(bsonOptions)); + } + else { + yield document; + } + this.throwIfAborted(); + } + } + catch (error) { + if (this.shouldEmitAndLogCommand) { + if (error.name === 'MongoWriteConcernError') { + this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_SUCCEEDED, message.databaseName, this.established, new command_monitoring_events_1.CommandSucceededEvent(this, message, options.noResponse ? undefined : (object ??= document?.toObject(bsonOptions)), started, this.description.serverConnectionId)); + } + else { + this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_FAILED, message.databaseName, this.established, new command_monitoring_events_1.CommandFailedEvent(this, message, error, started, this.description.serverConnectionId)); + } + } + throw error; + } + } + async command(ns, command, options = {}, responseType) { + this.throwIfAborted(); + for await (const document of this.sendCommand(ns, command, options, responseType)) { + return document; + } + throw new error_1.MongoUnexpectedServerResponseError('Unable to get response from server'); + } + exhaustCommand(ns, command, options, replyListener) { + const exhaustLoop = async () => { + this.throwIfAborted(); + for await (const reply of this.sendCommand(ns, command, options)) { + replyListener(undefined, reply); + this.throwIfAborted(); + } + throw new error_1.MongoUnexpectedServerResponseError('Server ended moreToCome unexpectedly'); + }; + // eslint-disable-next-line github/no-then + exhaustLoop().then(undefined, replyListener); + } + throwIfAborted() { + if (this.error) + throw this.error; + } + /** + * @internal + * + * Writes an OP_MSG or OP_QUERY request to the socket, optionally compressing the command. This method + * waits until the socket's buffer has emptied (the Nodejs socket `drain` event has fired). + */ + async writeCommand(command, options) { + const finalCommand = options.agreedCompressor === 'none' || !commands_1.OpCompressedRequest.canCompress(command) + ? command + : new commands_1.OpCompressedRequest(command, { + agreedCompressor: options.agreedCompressor ?? 'none', + zlibCompressionLevel: options.zlibCompressionLevel ?? 0 + }); + const buffer = Buffer.concat(await finalCommand.toBin()); + if (this.socket.write(buffer)) + return; + return await (0, utils_1.once)(this.socket, 'drain'); + } + /** + * @internal + * + * Returns an async generator that yields full wire protocol messages from the underlying socket. This function + * yields messages until `moreToCome` is false or not present in a response, or the caller cancels the request + * by calling `return` on the generator. + * + * Note that `for-await` loops call `return` automatically when the loop is exited. + */ + async *readMany() { + try { + this.dataEvents = (0, on_data_1.onData)(this.messageStream); + for await (const message of this.dataEvents) { + const response = await (0, compression_1.decompressResponse)(message); + yield response; + if (!response.moreToCome) { + return; + } + } + } + finally { + this.dataEvents = null; + this.throwIfAborted(); + } + } +} +/** @event */ +Connection.COMMAND_STARTED = constants_1.COMMAND_STARTED; +/** @event */ +Connection.COMMAND_SUCCEEDED = constants_1.COMMAND_SUCCEEDED; +/** @event */ +Connection.COMMAND_FAILED = constants_1.COMMAND_FAILED; +/** @event */ +Connection.CLUSTER_TIME_RECEIVED = constants_1.CLUSTER_TIME_RECEIVED; +/** @event */ +Connection.CLOSE = constants_1.CLOSE; +/** @event */ +Connection.PINNED = constants_1.PINNED; +/** @event */ +Connection.UNPINNED = constants_1.UNPINNED; +exports.Connection = Connection; +/** @internal */ +class SizedMessageTransform extends stream_1.Transform { + constructor({ connection }) { + super({ objectMode: false }); + this.bufferPool = new utils_1.BufferPool(); + this.connection = connection; + } + _transform(chunk, encoding, callback) { + if (this.connection.delayedTimeoutId != null) { + (0, timers_1.clearTimeout)(this.connection.delayedTimeoutId); + this.connection.delayedTimeoutId = null; + } + this.bufferPool.append(chunk); + const sizeOfMessage = this.bufferPool.getInt32(); + if (sizeOfMessage == null) { + return callback(); + } + if (sizeOfMessage < 0) { + return callback(new error_1.MongoParseError(`Invalid message size: ${sizeOfMessage}, too small`)); + } + if (sizeOfMessage > this.bufferPool.length) { + return callback(); + } + const message = this.bufferPool.read(sizeOfMessage); + return callback(null, message); + } +} +exports.SizedMessageTransform = SizedMessageTransform; +/** @internal */ +class CryptoConnection extends Connection { + constructor(stream, options) { + super(stream, options); + this.autoEncrypter = options.autoEncrypter; + } + async command(ns, cmd, options, _responseType) { + const { autoEncrypter } = this; + if (!autoEncrypter) { + // TODO(NODE-6065): throw a MongoRuntimeError in Node V7 + // @ts-expect-error No cause provided because there is no underlying error. + throw new error_1.MongoMissingDependencyError('No AutoEncrypter available for encryption', { + dependencyName: 'n/a' + }); + } + const serverWireVersion = (0, utils_1.maxWireVersion)(this); + if (serverWireVersion === 0) { + // This means the initial handshake hasn't happened yet + return await super.command(ns, cmd, options, undefined); + } + if (serverWireVersion < 8) { + throw new error_1.MongoCompatibilityError('Auto-encryption requires a minimum MongoDB version of 4.2'); + } + // Save sort or indexKeys based on the command being run + // the encrypt API serializes our JS objects to BSON to pass to the native code layer + // and then deserializes the encrypted result, the protocol level components + // of the command (ex. sort) are then converted to JS objects potentially losing + // import key order information. These fields are never encrypted so we can save the values + // from before the encryption and replace them after encryption has been performed + const sort = cmd.find || cmd.findAndModify ? cmd.sort : null; + const indexKeys = cmd.createIndexes + ? cmd.indexes.map((index) => index.key) + : null; + const encrypted = await autoEncrypter.encrypt(ns.toString(), cmd, options); + // Replace the saved values + if (sort != null && (cmd.find || cmd.findAndModify)) { + encrypted.sort = sort; + } + if (indexKeys != null && cmd.createIndexes) { + for (const [offset, index] of indexKeys.entries()) { + // @ts-expect-error `encrypted` is a generic "command", but we've narrowed for only `createIndexes` commands here + encrypted.indexes[offset].key = index; + } + } + const response = await super.command(ns, encrypted, options, undefined); + return await autoEncrypter.decrypt(response, options); + } +} +exports.CryptoConnection = CryptoConnection; +//# sourceMappingURL=connection.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection.js.map new file mode 100644 index 000000000..8a94ed39f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool.js new file mode 100644 index 000000000..0f382ea97 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool.js @@ -0,0 +1,573 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ConnectionPool = exports.PoolState = void 0; +const timers_1 = require("timers"); +const constants_1 = require("../constants"); +const error_1 = require("../error"); +const mongo_types_1 = require("../mongo_types"); +const timeout_1 = require("../timeout"); +const utils_1 = require("../utils"); +const connect_1 = require("./connect"); +const connection_1 = require("./connection"); +const connection_pool_events_1 = require("./connection_pool_events"); +const errors_1 = require("./errors"); +const metrics_1 = require("./metrics"); +/** @internal */ +const kServer = Symbol('server'); +/** @internal */ +const kConnections = Symbol('connections'); +/** @internal */ +const kPending = Symbol('pending'); +/** @internal */ +const kCheckedOut = Symbol('checkedOut'); +/** @internal */ +const kMinPoolSizeTimer = Symbol('minPoolSizeTimer'); +/** @internal */ +const kGeneration = Symbol('generation'); +/** @internal */ +const kServiceGenerations = Symbol('serviceGenerations'); +/** @internal */ +const kConnectionCounter = Symbol('connectionCounter'); +/** @internal */ +const kCancellationToken = Symbol('cancellationToken'); +/** @internal */ +const kWaitQueue = Symbol('waitQueue'); +/** @internal */ +const kCancelled = Symbol('cancelled'); +/** @internal */ +const kMetrics = Symbol('metrics'); +/** @internal */ +const kProcessingWaitQueue = Symbol('processingWaitQueue'); +/** @internal */ +const kPoolState = Symbol('poolState'); +/** @internal */ +exports.PoolState = Object.freeze({ + paused: 'paused', + ready: 'ready', + closed: 'closed' +}); +/** + * A pool of connections which dynamically resizes, and emit events related to pool activity + * @internal + */ +class ConnectionPool extends mongo_types_1.TypedEventEmitter { + constructor(server, options) { + super(); + this.options = Object.freeze({ + connectionType: connection_1.Connection, + ...options, + maxPoolSize: options.maxPoolSize ?? 100, + minPoolSize: options.minPoolSize ?? 0, + maxConnecting: options.maxConnecting ?? 2, + maxIdleTimeMS: options.maxIdleTimeMS ?? 0, + waitQueueTimeoutMS: options.waitQueueTimeoutMS ?? 0, + minPoolSizeCheckFrequencyMS: options.minPoolSizeCheckFrequencyMS ?? 100, + autoEncrypter: options.autoEncrypter + }); + if (this.options.minPoolSize > this.options.maxPoolSize) { + throw new error_1.MongoInvalidArgumentError('Connection pool minimum size must not be greater than maximum pool size'); + } + this[kPoolState] = exports.PoolState.paused; + this[kServer] = server; + this[kConnections] = new utils_1.List(); + this[kPending] = 0; + this[kCheckedOut] = new Set(); + this[kMinPoolSizeTimer] = undefined; + this[kGeneration] = 0; + this[kServiceGenerations] = new Map(); + this[kConnectionCounter] = (0, utils_1.makeCounter)(1); + this[kCancellationToken] = new mongo_types_1.CancellationToken(); + this[kCancellationToken].setMaxListeners(Infinity); + this[kWaitQueue] = new utils_1.List(); + this[kMetrics] = new metrics_1.ConnectionPoolMetrics(); + this[kProcessingWaitQueue] = false; + this.mongoLogger = this[kServer].topology.client?.mongoLogger; + this.component = 'connection'; + process.nextTick(() => { + this.emitAndLog(ConnectionPool.CONNECTION_POOL_CREATED, new connection_pool_events_1.ConnectionPoolCreatedEvent(this)); + }); + } + /** The address of the endpoint the pool is connected to */ + get address() { + return this.options.hostAddress.toString(); + } + /** + * Check if the pool has been closed + * + * TODO(NODE-3263): We can remove this property once shell no longer needs it + */ + get closed() { + return this[kPoolState] === exports.PoolState.closed; + } + /** An integer representing the SDAM generation of the pool */ + get generation() { + return this[kGeneration]; + } + /** An integer expressing how many total connections (available + pending + in use) the pool currently has */ + get totalConnectionCount() { + return (this.availableConnectionCount + this.pendingConnectionCount + this.currentCheckedOutCount); + } + /** An integer expressing how many connections are currently available in the pool. */ + get availableConnectionCount() { + return this[kConnections].length; + } + get pendingConnectionCount() { + return this[kPending]; + } + get currentCheckedOutCount() { + return this[kCheckedOut].size; + } + get waitQueueSize() { + return this[kWaitQueue].length; + } + get loadBalanced() { + return this.options.loadBalanced; + } + get serviceGenerations() { + return this[kServiceGenerations]; + } + get serverError() { + return this[kServer].description.error; + } + /** + * This is exposed ONLY for use in mongosh, to enable + * killing all connections if a user quits the shell with + * operations in progress. + * + * This property may be removed as a part of NODE-3263. + */ + get checkedOutConnections() { + return this[kCheckedOut]; + } + /** + * Get the metrics information for the pool when a wait queue timeout occurs. + */ + waitQueueErrorMetrics() { + return this[kMetrics].info(this.options.maxPoolSize); + } + /** + * Set the pool state to "ready" + */ + ready() { + if (this[kPoolState] !== exports.PoolState.paused) { + return; + } + this[kPoolState] = exports.PoolState.ready; + this.emitAndLog(ConnectionPool.CONNECTION_POOL_READY, new connection_pool_events_1.ConnectionPoolReadyEvent(this)); + (0, timers_1.clearTimeout)(this[kMinPoolSizeTimer]); + this.ensureMinPoolSize(); + } + /** + * Check a connection out of this pool. The connection will continue to be tracked, but no reference to it + * will be held by the pool. This means that if a connection is checked out it MUST be checked back in or + * explicitly destroyed by the new owner. + */ + async checkOut() { + this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_STARTED, new connection_pool_events_1.ConnectionCheckOutStartedEvent(this)); + const waitQueueTimeoutMS = this.options.waitQueueTimeoutMS; + const { promise, resolve, reject } = (0, utils_1.promiseWithResolvers)(); + const timeout = timeout_1.Timeout.expires(waitQueueTimeoutMS); + const waitQueueMember = { + resolve, + reject, + timeout + }; + this[kWaitQueue].push(waitQueueMember); + process.nextTick(() => this.processWaitQueue()); + try { + return await Promise.race([promise, waitQueueMember.timeout]); + } + catch (error) { + if (timeout_1.TimeoutError.is(error)) { + waitQueueMember[kCancelled] = true; + waitQueueMember.timeout.clear(); + this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_FAILED, new connection_pool_events_1.ConnectionCheckOutFailedEvent(this, 'timeout')); + const timeoutError = new errors_1.WaitQueueTimeoutError(this.loadBalanced + ? this.waitQueueErrorMetrics() + : 'Timed out while checking out a connection from connection pool', this.address); + throw timeoutError; + } + throw error; + } + } + /** + * Check a connection into the pool. + * + * @param connection - The connection to check in + */ + checkIn(connection) { + if (!this[kCheckedOut].has(connection)) { + return; + } + const poolClosed = this.closed; + const stale = this.connectionIsStale(connection); + const willDestroy = !!(poolClosed || stale || connection.closed); + if (!willDestroy) { + connection.markAvailable(); + this[kConnections].unshift(connection); + } + this[kCheckedOut].delete(connection); + this.emitAndLog(ConnectionPool.CONNECTION_CHECKED_IN, new connection_pool_events_1.ConnectionCheckedInEvent(this, connection)); + if (willDestroy) { + const reason = connection.closed ? 'error' : poolClosed ? 'poolClosed' : 'stale'; + this.destroyConnection(connection, reason); + } + process.nextTick(() => this.processWaitQueue()); + } + /** + * Clear the pool + * + * Pool reset is handled by incrementing the pool's generation count. Any existing connection of a + * previous generation will eventually be pruned during subsequent checkouts. + */ + clear(options = {}) { + if (this.closed) { + return; + } + // handle load balanced case + if (this.loadBalanced) { + const { serviceId } = options; + if (!serviceId) { + throw new error_1.MongoRuntimeError('ConnectionPool.clear() called in load balanced mode with no serviceId.'); + } + const sid = serviceId.toHexString(); + const generation = this.serviceGenerations.get(sid); + // Only need to worry if the generation exists, since it should + // always be there but typescript needs the check. + if (generation == null) { + throw new error_1.MongoRuntimeError('Service generations are required in load balancer mode.'); + } + else { + // Increment the generation for the service id. + this.serviceGenerations.set(sid, generation + 1); + } + this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLEARED, new connection_pool_events_1.ConnectionPoolClearedEvent(this, { serviceId })); + return; + } + // handle non load-balanced case + const interruptInUseConnections = options.interruptInUseConnections ?? false; + const oldGeneration = this[kGeneration]; + this[kGeneration] += 1; + const alreadyPaused = this[kPoolState] === exports.PoolState.paused; + this[kPoolState] = exports.PoolState.paused; + this.clearMinPoolSizeTimer(); + if (!alreadyPaused) { + this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLEARED, new connection_pool_events_1.ConnectionPoolClearedEvent(this, { + interruptInUseConnections + })); + } + if (interruptInUseConnections) { + process.nextTick(() => this.interruptInUseConnections(oldGeneration)); + } + this.processWaitQueue(); + } + /** + * Closes all stale in-use connections in the pool with a resumable PoolClearedOnNetworkError. + * + * Only connections where `connection.generation <= minGeneration` are killed. + */ + interruptInUseConnections(minGeneration) { + for (const connection of this[kCheckedOut]) { + if (connection.generation <= minGeneration) { + connection.onError(new errors_1.PoolClearedOnNetworkError(this)); + this.checkIn(connection); + } + } + } + /** Close the pool */ + close() { + if (this.closed) { + return; + } + // immediately cancel any in-flight connections + this[kCancellationToken].emit('cancel'); + // end the connection counter + if (typeof this[kConnectionCounter].return === 'function') { + this[kConnectionCounter].return(undefined); + } + this[kPoolState] = exports.PoolState.closed; + this.clearMinPoolSizeTimer(); + this.processWaitQueue(); + for (const conn of this[kConnections]) { + this.emitAndLog(ConnectionPool.CONNECTION_CLOSED, new connection_pool_events_1.ConnectionClosedEvent(this, conn, 'poolClosed')); + conn.destroy(); + } + this[kConnections].clear(); + this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLOSED, new connection_pool_events_1.ConnectionPoolClosedEvent(this)); + } + /** + * @internal + * Reauthenticate a connection + */ + async reauthenticate(connection) { + const authContext = connection.authContext; + if (!authContext) { + throw new error_1.MongoRuntimeError('No auth context found on connection.'); + } + const credentials = authContext.credentials; + if (!credentials) { + throw new error_1.MongoMissingCredentialsError('Connection is missing credentials when asked to reauthenticate'); + } + const resolvedCredentials = credentials.resolveAuthMechanism(connection.hello); + const provider = this[kServer].topology.client.s.authProviders.getOrCreateProvider(resolvedCredentials.mechanism); + if (!provider) { + throw new error_1.MongoMissingCredentialsError(`Reauthenticate failed due to no auth provider for ${credentials.mechanism}`); + } + await provider.reauth(authContext); + return; + } + /** Clear the min pool size timer */ + clearMinPoolSizeTimer() { + const minPoolSizeTimer = this[kMinPoolSizeTimer]; + if (minPoolSizeTimer) { + (0, timers_1.clearTimeout)(minPoolSizeTimer); + } + } + destroyConnection(connection, reason) { + this.emitAndLog(ConnectionPool.CONNECTION_CLOSED, new connection_pool_events_1.ConnectionClosedEvent(this, connection, reason)); + // destroy the connection + connection.destroy(); + } + connectionIsStale(connection) { + const serviceId = connection.serviceId; + if (this.loadBalanced && serviceId) { + const sid = serviceId.toHexString(); + const generation = this.serviceGenerations.get(sid); + return connection.generation !== generation; + } + return connection.generation !== this[kGeneration]; + } + connectionIsIdle(connection) { + return !!(this.options.maxIdleTimeMS && connection.idleTime > this.options.maxIdleTimeMS); + } + /** + * Destroys a connection if the connection is perished. + * + * @returns `true` if the connection was destroyed, `false` otherwise. + */ + destroyConnectionIfPerished(connection) { + const isStale = this.connectionIsStale(connection); + const isIdle = this.connectionIsIdle(connection); + if (!isStale && !isIdle && !connection.closed) { + return false; + } + const reason = connection.closed ? 'error' : isStale ? 'stale' : 'idle'; + this.destroyConnection(connection, reason); + return true; + } + createConnection(callback) { + const connectOptions = { + ...this.options, + id: this[kConnectionCounter].next().value, + generation: this[kGeneration], + cancellationToken: this[kCancellationToken], + mongoLogger: this.mongoLogger, + authProviders: this[kServer].topology.client.s.authProviders + }; + this[kPending]++; + // This is our version of a "virtual" no-I/O connection as the spec requires + this.emitAndLog(ConnectionPool.CONNECTION_CREATED, new connection_pool_events_1.ConnectionCreatedEvent(this, { id: connectOptions.id })); + // eslint-disable-next-line github/no-then + (0, connect_1.connect)(connectOptions).then(connection => { + // The pool might have closed since we started trying to create a connection + if (this[kPoolState] !== exports.PoolState.ready) { + this[kPending]--; + connection.destroy(); + callback(this.closed ? new errors_1.PoolClosedError(this) : new errors_1.PoolClearedError(this)); + return; + } + // forward all events from the connection to the pool + for (const event of [...constants_1.APM_EVENTS, connection_1.Connection.CLUSTER_TIME_RECEIVED]) { + connection.on(event, (e) => this.emit(event, e)); + } + if (this.loadBalanced) { + connection.on(connection_1.Connection.PINNED, pinType => this[kMetrics].markPinned(pinType)); + connection.on(connection_1.Connection.UNPINNED, pinType => this[kMetrics].markUnpinned(pinType)); + const serviceId = connection.serviceId; + if (serviceId) { + let generation; + const sid = serviceId.toHexString(); + if ((generation = this.serviceGenerations.get(sid))) { + connection.generation = generation; + } + else { + this.serviceGenerations.set(sid, 0); + connection.generation = 0; + } + } + } + connection.markAvailable(); + this.emitAndLog(ConnectionPool.CONNECTION_READY, new connection_pool_events_1.ConnectionReadyEvent(this, connection)); + this[kPending]--; + callback(undefined, connection); + }, error => { + this[kPending]--; + this.emitAndLog(ConnectionPool.CONNECTION_CLOSED, new connection_pool_events_1.ConnectionClosedEvent(this, { id: connectOptions.id, serviceId: undefined }, 'error', + // TODO(NODE-5192): Remove this cast + error)); + if (error instanceof error_1.MongoNetworkError || error instanceof error_1.MongoServerError) { + error.connectionGeneration = connectOptions.generation; + } + callback(error ?? new error_1.MongoRuntimeError('Connection creation failed without error')); + }); + } + ensureMinPoolSize() { + const minPoolSize = this.options.minPoolSize; + if (this[kPoolState] !== exports.PoolState.ready || minPoolSize === 0) { + return; + } + this[kConnections].prune(connection => this.destroyConnectionIfPerished(connection)); + if (this.totalConnectionCount < minPoolSize && + this.pendingConnectionCount < this.options.maxConnecting) { + // NOTE: ensureMinPoolSize should not try to get all the pending + // connection permits because that potentially delays the availability of + // the connection to a checkout request + this.createConnection((err, connection) => { + if (err) { + this[kServer].handleError(err); + } + if (!err && connection) { + this[kConnections].push(connection); + process.nextTick(() => this.processWaitQueue()); + } + if (this[kPoolState] === exports.PoolState.ready) { + (0, timers_1.clearTimeout)(this[kMinPoolSizeTimer]); + this[kMinPoolSizeTimer] = (0, timers_1.setTimeout)(() => this.ensureMinPoolSize(), this.options.minPoolSizeCheckFrequencyMS); + } + }); + } + else { + (0, timers_1.clearTimeout)(this[kMinPoolSizeTimer]); + this[kMinPoolSizeTimer] = (0, timers_1.setTimeout)(() => this.ensureMinPoolSize(), this.options.minPoolSizeCheckFrequencyMS); + } + } + processWaitQueue() { + if (this[kProcessingWaitQueue]) { + return; + } + this[kProcessingWaitQueue] = true; + while (this.waitQueueSize) { + const waitQueueMember = this[kWaitQueue].first(); + if (!waitQueueMember) { + this[kWaitQueue].shift(); + continue; + } + if (waitQueueMember[kCancelled]) { + this[kWaitQueue].shift(); + continue; + } + if (this[kPoolState] !== exports.PoolState.ready) { + const reason = this.closed ? 'poolClosed' : 'connectionError'; + const error = this.closed ? new errors_1.PoolClosedError(this) : new errors_1.PoolClearedError(this); + this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_FAILED, new connection_pool_events_1.ConnectionCheckOutFailedEvent(this, reason, error)); + waitQueueMember.timeout.clear(); + this[kWaitQueue].shift(); + waitQueueMember.reject(error); + continue; + } + if (!this.availableConnectionCount) { + break; + } + const connection = this[kConnections].shift(); + if (!connection) { + break; + } + if (!this.destroyConnectionIfPerished(connection)) { + this[kCheckedOut].add(connection); + this.emitAndLog(ConnectionPool.CONNECTION_CHECKED_OUT, new connection_pool_events_1.ConnectionCheckedOutEvent(this, connection)); + waitQueueMember.timeout.clear(); + this[kWaitQueue].shift(); + waitQueueMember.resolve(connection); + } + } + const { maxPoolSize, maxConnecting } = this.options; + while (this.waitQueueSize > 0 && + this.pendingConnectionCount < maxConnecting && + (maxPoolSize === 0 || this.totalConnectionCount < maxPoolSize)) { + const waitQueueMember = this[kWaitQueue].shift(); + if (!waitQueueMember || waitQueueMember[kCancelled]) { + continue; + } + this.createConnection((err, connection) => { + if (waitQueueMember[kCancelled]) { + if (!err && connection) { + this[kConnections].push(connection); + } + } + else { + if (err) { + this.emitAndLog(ConnectionPool.CONNECTION_CHECK_OUT_FAILED, + // TODO(NODE-5192): Remove this cast + new connection_pool_events_1.ConnectionCheckOutFailedEvent(this, 'connectionError', err)); + waitQueueMember.reject(err); + } + else if (connection) { + this[kCheckedOut].add(connection); + this.emitAndLog(ConnectionPool.CONNECTION_CHECKED_OUT, new connection_pool_events_1.ConnectionCheckedOutEvent(this, connection)); + waitQueueMember.resolve(connection); + } + waitQueueMember.timeout.clear(); + } + process.nextTick(() => this.processWaitQueue()); + }); + } + this[kProcessingWaitQueue] = false; + } +} +/** + * Emitted when the connection pool is created. + * @event + */ +ConnectionPool.CONNECTION_POOL_CREATED = constants_1.CONNECTION_POOL_CREATED; +/** + * Emitted once when the connection pool is closed + * @event + */ +ConnectionPool.CONNECTION_POOL_CLOSED = constants_1.CONNECTION_POOL_CLOSED; +/** + * Emitted each time the connection pool is cleared and it's generation incremented + * @event + */ +ConnectionPool.CONNECTION_POOL_CLEARED = constants_1.CONNECTION_POOL_CLEARED; +/** + * Emitted each time the connection pool is marked ready + * @event + */ +ConnectionPool.CONNECTION_POOL_READY = constants_1.CONNECTION_POOL_READY; +/** + * Emitted when a connection is created. + * @event + */ +ConnectionPool.CONNECTION_CREATED = constants_1.CONNECTION_CREATED; +/** + * Emitted when a connection becomes established, and is ready to use + * @event + */ +ConnectionPool.CONNECTION_READY = constants_1.CONNECTION_READY; +/** + * Emitted when a connection is closed + * @event + */ +ConnectionPool.CONNECTION_CLOSED = constants_1.CONNECTION_CLOSED; +/** + * Emitted when an attempt to check out a connection begins + * @event + */ +ConnectionPool.CONNECTION_CHECK_OUT_STARTED = constants_1.CONNECTION_CHECK_OUT_STARTED; +/** + * Emitted when an attempt to check out a connection fails + * @event + */ +ConnectionPool.CONNECTION_CHECK_OUT_FAILED = constants_1.CONNECTION_CHECK_OUT_FAILED; +/** + * Emitted each time a connection is successfully checked out of the connection pool + * @event + */ +ConnectionPool.CONNECTION_CHECKED_OUT = constants_1.CONNECTION_CHECKED_OUT; +/** + * Emitted each time a connection is successfully checked into the connection pool + * @event + */ +ConnectionPool.CONNECTION_CHECKED_IN = constants_1.CONNECTION_CHECKED_IN; +exports.ConnectionPool = ConnectionPool; +//# sourceMappingURL=connection_pool.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool.js.map new file mode 100644 index 000000000..3d9faef43 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool_events.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool_events.js new file mode 100644 index 000000000..a08d5ac1d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool_events.js @@ -0,0 +1,186 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ConnectionPoolClearedEvent = exports.ConnectionCheckedInEvent = exports.ConnectionCheckedOutEvent = exports.ConnectionCheckOutFailedEvent = exports.ConnectionCheckOutStartedEvent = exports.ConnectionClosedEvent = exports.ConnectionReadyEvent = exports.ConnectionCreatedEvent = exports.ConnectionPoolClosedEvent = exports.ConnectionPoolReadyEvent = exports.ConnectionPoolCreatedEvent = exports.ConnectionPoolMonitoringEvent = void 0; +const constants_1 = require("../constants"); +/** + * The base export class for all monitoring events published from the connection pool + * @public + * @category Event + */ +class ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool) { + this.time = new Date(); + this.address = pool.address; + } +} +exports.ConnectionPoolMonitoringEvent = ConnectionPoolMonitoringEvent; +/** + * An event published when a connection pool is created + * @public + * @category Event + */ +class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_POOL_CREATED; + const { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS } = pool.options; + this.options = { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS }; + } +} +exports.ConnectionPoolCreatedEvent = ConnectionPoolCreatedEvent; +/** + * An event published when a connection pool is ready + * @public + * @category Event + */ +class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_POOL_READY; + } +} +exports.ConnectionPoolReadyEvent = ConnectionPoolReadyEvent; +/** + * An event published when a connection pool is closed + * @public + * @category Event + */ +class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_POOL_CLOSED; + } +} +exports.ConnectionPoolClosedEvent = ConnectionPoolClosedEvent; +/** + * An event published when a connection pool creates a new connection + * @public + * @category Event + */ +class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, connection) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_CREATED; + this.connectionId = connection.id; + } +} +exports.ConnectionCreatedEvent = ConnectionCreatedEvent; +/** + * An event published when a connection is ready for use + * @public + * @category Event + */ +class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, connection) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_READY; + this.connectionId = connection.id; + } +} +exports.ConnectionReadyEvent = ConnectionReadyEvent; +/** + * An event published when a connection is closed + * @public + * @category Event + */ +class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, connection, reason, error) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_CLOSED; + this.connectionId = connection.id; + this.reason = reason; + this.serviceId = connection.serviceId; + this.error = error ?? null; + } +} +exports.ConnectionClosedEvent = ConnectionClosedEvent; +/** + * An event published when a request to check a connection out begins + * @public + * @category Event + */ +class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_CHECK_OUT_STARTED; + } +} +exports.ConnectionCheckOutStartedEvent = ConnectionCheckOutStartedEvent; +/** + * An event published when a request to check a connection out fails + * @public + * @category Event + */ +class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, reason, error) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_CHECK_OUT_FAILED; + this.reason = reason; + this.error = error; + } +} +exports.ConnectionCheckOutFailedEvent = ConnectionCheckOutFailedEvent; +/** + * An event published when a connection is checked out of the connection pool + * @public + * @category Event + */ +class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, connection) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_CHECKED_OUT; + this.connectionId = connection.id; + } +} +exports.ConnectionCheckedOutEvent = ConnectionCheckedOutEvent; +/** + * An event published when a connection is checked into the connection pool + * @public + * @category Event + */ +class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, connection) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_CHECKED_IN; + this.connectionId = connection.id; + } +} +exports.ConnectionCheckedInEvent = ConnectionCheckedInEvent; +/** + * An event published when a connection pool is cleared + * @public + * @category Event + */ +class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + constructor(pool, options = {}) { + super(pool); + /** @internal */ + this.name = constants_1.CONNECTION_POOL_CLEARED; + this.serviceId = options.serviceId; + this.interruptInUseConnections = options.interruptInUseConnections; + } +} +exports.ConnectionPoolClearedEvent = ConnectionPoolClearedEvent; +//# sourceMappingURL=connection_pool_events.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool_events.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool_events.js.map new file mode 100644 index 000000000..35418c72d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/connection_pool_events.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/errors.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/errors.js new file mode 100644 index 000000000..b215a296a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/errors.js @@ -0,0 +1,108 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.WaitQueueTimeoutError = exports.PoolClearedOnNetworkError = exports.PoolClearedError = exports.PoolClosedError = void 0; +const error_1 = require("../error"); +/** + * An error indicating a connection pool is closed + * @category Error + */ +class PoolClosedError extends error_1.MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(pool) { + super('Attempted to check out a connection from closed connection pool'); + this.address = pool.address; + } + get name() { + return 'MongoPoolClosedError'; + } +} +exports.PoolClosedError = PoolClosedError; +/** + * An error indicating a connection pool is currently paused + * @category Error + */ +class PoolClearedError extends error_1.MongoNetworkError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(pool, message) { + const errorMessage = message + ? message + : `Connection pool for ${pool.address} was cleared because another operation failed with: "${pool.serverError?.message}"`; + super(errorMessage, pool.serverError ? { cause: pool.serverError } : undefined); + this.address = pool.address; + this.addErrorLabel(error_1.MongoErrorLabel.PoolRequstedRetry); + } + get name() { + return 'MongoPoolClearedError'; + } +} +exports.PoolClearedError = PoolClearedError; +/** + * An error indicating that a connection pool has been cleared after the monitor for that server timed out. + * @category Error + */ +class PoolClearedOnNetworkError extends PoolClearedError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(pool) { + super(pool, `Connection to ${pool.address} interrupted due to server monitor timeout`); + } + get name() { + return 'PoolClearedOnNetworkError'; + } +} +exports.PoolClearedOnNetworkError = PoolClearedOnNetworkError; +/** + * An error thrown when a request to check out a connection times out + * @category Error + */ +class WaitQueueTimeoutError extends error_1.MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, address) { + super(message); + this.address = address; + } + get name() { + return 'MongoWaitQueueTimeoutError'; + } +} +exports.WaitQueueTimeoutError = WaitQueueTimeoutError; +//# sourceMappingURL=errors.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/errors.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/errors.js.map new file mode 100644 index 000000000..fcdf5c69d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/errors.js.map @@ -0,0 +1 @@ +{"version":3,"file":"errors.js","sourceRoot":"","sources":["../../src/cmap/errors.ts"],"names":[],"mappings":";;;AAAA,oCAAgF;AAGhF;;;GAGG;AACH,MAAa,eAAgB,SAAQ,wBAAgB;IAInD;;;;;;;;;;QAUI;IACJ,YAAY,IAAoB;QAC9B,KAAK,CAAC,iEAAiE,CAAC,CAAC;QACzE,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;IAC9B,CAAC;IAED,IAAa,IAAI;QACf,OAAO,sBAAsB,CAAC;IAChC,CAAC;CACF;AAvBD,0CAuBC;AAED;;;GAGG;AACH,MAAa,gBAAiB,SAAQ,yBAAiB;IAIrD;;;;;;;;;;QAUI;IACJ,YAAY,IAAoB,EAAE,OAAgB;QAChD,MAAM,YAAY,GAAG,OAAO;YAC1B,CAAC,CAAC,OAAO;YACT,CAAC,CAAC,uBAAuB,IAAI,CAAC,OAAO,wDAAwD,IAAI,CAAC,WAAW,EAAE,OAAO,GAAG,CAAC;QAC5H,KAAK,CAAC,YAAY,EAAE,IAAI,CAAC,WAAW,CAAC,CAAC,CAAC,EAAE,KAAK,EAAE,IAAI,CAAC,WAAW,EAAE,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC;QAChF,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAE5B,IAAI,CAAC,aAAa,CAAC,uBAAe,CAAC,iBAAiB,CAAC,CAAC;IACxD,CAAC;IAED,IAAa,IAAI;QACf,OAAO,uBAAuB,CAAC;IACjC,CAAC;CACF;AA5BD,4CA4BC;AAED;;;GAGG;AACH,MAAa,yBAA0B,SAAQ,gBAAgB;IAC7D;;;;;;;;;;QAUI;IACJ,YAAY,IAAoB;QAC9B,KAAK,CAAC,IAAI,EAAE,iBAAiB,IAAI,CAAC,OAAO,4CAA4C,CAAC,CAAC;IACzF,CAAC;IAED,IAAa,IAAI;QACf,OAAO,2BAA2B,CAAC;IACrC,CAAC;CACF;AAnBD,8DAmBC;AAED;;;GAGG;AACH,MAAa,qBAAsB,SAAQ,wBAAgB;IAIzD;;;;;;;;;;QAUI;IACJ,YAAY,OAAe,EAAE,OAAe;QAC1C,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,IAAa,IAAI;QACf,OAAO,4BAA4B,CAAC;IACtC,CAAC;CACF;AAvBD,sDAuBC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/handshake/client_metadata.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/handshake/client_metadata.js new file mode 100644 index 000000000..cc563547b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/handshake/client_metadata.js @@ -0,0 +1,216 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.getFAASEnv = exports.addContainerMetadata = exports.makeClientMetadata = exports.LimitedSizeDocument = void 0; +const os = require("os"); +const process = require("process"); +const bson_1 = require("../../bson"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +// eslint-disable-next-line @typescript-eslint/no-var-requires +const NODE_DRIVER_VERSION = require('../../../package.json').version; +/** @internal */ +class LimitedSizeDocument { + constructor(maxSize) { + this.maxSize = maxSize; + this.document = new Map(); + /** BSON overhead: Int32 + Null byte */ + this.documentSize = 5; + } + /** Only adds key/value if the bsonByteLength is less than MAX_SIZE */ + ifItFitsItSits(key, value) { + // The BSON byteLength of the new element is the same as serializing it to its own document + // subtracting the document size int32 and the null terminator. + const newElementSize = bson_1.BSON.serialize(new Map().set(key, value)).byteLength - 5; + if (newElementSize + this.documentSize > this.maxSize) { + return false; + } + this.documentSize += newElementSize; + this.document.set(key, value); + return true; + } + toObject() { + return bson_1.BSON.deserialize(bson_1.BSON.serialize(this.document), { + promoteLongs: false, + promoteBuffers: false, + promoteValues: false, + useBigInt64: false + }); + } +} +exports.LimitedSizeDocument = LimitedSizeDocument; +/** + * From the specs: + * Implementors SHOULD cumulatively update fields in the following order until the document is under the size limit: + * 1. Omit fields from `env` except `env.name`. + * 2. Omit fields from `os` except `os.type`. + * 3. Omit the `env` document entirely. + * 4. Truncate `platform`. -- special we do not truncate this field + */ +function makeClientMetadata(options) { + const metadataDocument = new LimitedSizeDocument(512); + const { appName = '' } = options; + // Add app name first, it must be sent + if (appName.length > 0) { + const name = Buffer.byteLength(appName, 'utf8') <= 128 + ? options.appName + : Buffer.from(appName, 'utf8').subarray(0, 128).toString('utf8'); + metadataDocument.ifItFitsItSits('application', { name }); + } + const { name = '', version = '', platform = '' } = options.driverInfo; + const driverInfo = { + name: name.length > 0 ? `nodejs|${name}` : 'nodejs', + version: version.length > 0 ? `${NODE_DRIVER_VERSION}|${version}` : NODE_DRIVER_VERSION + }; + if (!metadataDocument.ifItFitsItSits('driver', driverInfo)) { + throw new error_1.MongoInvalidArgumentError('Unable to include driverInfo name and version, metadata cannot exceed 512 bytes'); + } + let runtimeInfo = getRuntimeInfo(); + if (platform.length > 0) { + runtimeInfo = `${runtimeInfo}|${platform}`; + } + if (!metadataDocument.ifItFitsItSits('platform', runtimeInfo)) { + throw new error_1.MongoInvalidArgumentError('Unable to include driverInfo platform, metadata cannot exceed 512 bytes'); + } + // Note: order matters, os.type is last so it will be removed last if we're at maxSize + const osInfo = new Map() + .set('name', process.platform) + .set('architecture', process.arch) + .set('version', os.release()) + .set('type', os.type()); + if (!metadataDocument.ifItFitsItSits('os', osInfo)) { + for (const key of osInfo.keys()) { + osInfo.delete(key); + if (osInfo.size === 0) + break; + if (metadataDocument.ifItFitsItSits('os', osInfo)) + break; + } + } + const faasEnv = getFAASEnv(); + if (faasEnv != null) { + if (!metadataDocument.ifItFitsItSits('env', faasEnv)) { + for (const key of faasEnv.keys()) { + faasEnv.delete(key); + if (faasEnv.size === 0) + break; + if (metadataDocument.ifItFitsItSits('env', faasEnv)) + break; + } + } + } + return metadataDocument.toObject(); +} +exports.makeClientMetadata = makeClientMetadata; +let dockerPromise; +/** @internal */ +async function getContainerMetadata() { + const containerMetadata = {}; + dockerPromise ??= (0, utils_1.fileIsAccessible)('/.dockerenv'); + const isDocker = await dockerPromise; + const { KUBERNETES_SERVICE_HOST = '' } = process.env; + const isKubernetes = KUBERNETES_SERVICE_HOST.length > 0 ? true : false; + if (isDocker) + containerMetadata.runtime = 'docker'; + if (isKubernetes) + containerMetadata.orchestrator = 'kubernetes'; + return containerMetadata; +} +/** + * @internal + * Re-add each metadata value. + * Attempt to add new env container metadata, but keep old data if it does not fit. + */ +async function addContainerMetadata(originalMetadata) { + const containerMetadata = await getContainerMetadata(); + if (Object.keys(containerMetadata).length === 0) + return originalMetadata; + const extendedMetadata = new LimitedSizeDocument(512); + const extendedEnvMetadata = { ...originalMetadata?.env, container: containerMetadata }; + for (const [key, val] of Object.entries(originalMetadata)) { + if (key !== 'env') { + extendedMetadata.ifItFitsItSits(key, val); + } + else { + if (!extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata)) { + // add in old data if newer / extended metadata does not fit + extendedMetadata.ifItFitsItSits('env', val); + } + } + } + if (!('env' in originalMetadata)) { + extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata); + } + return extendedMetadata.toObject(); +} +exports.addContainerMetadata = addContainerMetadata; +/** + * Collects FaaS metadata. + * - `name` MUST be the last key in the Map returned. + */ +function getFAASEnv() { + const { AWS_EXECUTION_ENV = '', AWS_LAMBDA_RUNTIME_API = '', FUNCTIONS_WORKER_RUNTIME = '', K_SERVICE = '', FUNCTION_NAME = '', VERCEL = '', AWS_LAMBDA_FUNCTION_MEMORY_SIZE = '', AWS_REGION = '', FUNCTION_MEMORY_MB = '', FUNCTION_REGION = '', FUNCTION_TIMEOUT_SEC = '', VERCEL_REGION = '' } = process.env; + const isAWSFaaS = AWS_EXECUTION_ENV.startsWith('AWS_Lambda_') || AWS_LAMBDA_RUNTIME_API.length > 0; + const isAzureFaaS = FUNCTIONS_WORKER_RUNTIME.length > 0; + const isGCPFaaS = K_SERVICE.length > 0 || FUNCTION_NAME.length > 0; + const isVercelFaaS = VERCEL.length > 0; + // Note: order matters, name must always be the last key + const faasEnv = new Map(); + // When isVercelFaaS is true so is isAWSFaaS; Vercel inherits the AWS env + if (isVercelFaaS && !(isAzureFaaS || isGCPFaaS)) { + if (VERCEL_REGION.length > 0) { + faasEnv.set('region', VERCEL_REGION); + } + faasEnv.set('name', 'vercel'); + return faasEnv; + } + if (isAWSFaaS && !(isAzureFaaS || isGCPFaaS || isVercelFaaS)) { + if (AWS_REGION.length > 0) { + faasEnv.set('region', AWS_REGION); + } + if (AWS_LAMBDA_FUNCTION_MEMORY_SIZE.length > 0 && + Number.isInteger(+AWS_LAMBDA_FUNCTION_MEMORY_SIZE)) { + faasEnv.set('memory_mb', new bson_1.Int32(AWS_LAMBDA_FUNCTION_MEMORY_SIZE)); + } + faasEnv.set('name', 'aws.lambda'); + return faasEnv; + } + if (isAzureFaaS && !(isGCPFaaS || isAWSFaaS || isVercelFaaS)) { + faasEnv.set('name', 'azure.func'); + return faasEnv; + } + if (isGCPFaaS && !(isAzureFaaS || isAWSFaaS || isVercelFaaS)) { + if (FUNCTION_REGION.length > 0) { + faasEnv.set('region', FUNCTION_REGION); + } + if (FUNCTION_MEMORY_MB.length > 0 && Number.isInteger(+FUNCTION_MEMORY_MB)) { + faasEnv.set('memory_mb', new bson_1.Int32(FUNCTION_MEMORY_MB)); + } + if (FUNCTION_TIMEOUT_SEC.length > 0 && Number.isInteger(+FUNCTION_TIMEOUT_SEC)) { + faasEnv.set('timeout_sec', new bson_1.Int32(FUNCTION_TIMEOUT_SEC)); + } + faasEnv.set('name', 'gcp.func'); + return faasEnv; + } + return null; +} +exports.getFAASEnv = getFAASEnv; +/** + * @internal + * Get current JavaScript runtime platform + * + * NOTE: The version information fetching is intentionally written defensively + * to avoid having a released driver version that becomes incompatible + * with a future change to these global objects. + */ +function getRuntimeInfo() { + if ('Deno' in globalThis) { + const version = typeof Deno?.version?.deno === 'string' ? Deno?.version?.deno : '0.0.0-unknown'; + return `Deno v${version}, ${os.endianness()}`; + } + if ('Bun' in globalThis) { + const version = typeof Bun?.version === 'string' ? Bun?.version : '0.0.0-unknown'; + return `Bun v${version}, ${os.endianness()}`; + } + return `Node.js ${process.version}, ${os.endianness()}`; +} +//# sourceMappingURL=client_metadata.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/handshake/client_metadata.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/handshake/client_metadata.js.map new file mode 100644 index 000000000..11e022748 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/handshake/client_metadata.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/metrics.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/metrics.js new file mode 100644 index 000000000..b510164ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/metrics.js @@ -0,0 +1,62 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ConnectionPoolMetrics = void 0; +/** @internal */ +class ConnectionPoolMetrics { + constructor() { + this.txnConnections = 0; + this.cursorConnections = 0; + this.otherConnections = 0; + } + /** + * Mark a connection as pinned for a specific operation. + */ + markPinned(pinType) { + if (pinType === ConnectionPoolMetrics.TXN) { + this.txnConnections += 1; + } + else if (pinType === ConnectionPoolMetrics.CURSOR) { + this.cursorConnections += 1; + } + else { + this.otherConnections += 1; + } + } + /** + * Unmark a connection as pinned for an operation. + */ + markUnpinned(pinType) { + if (pinType === ConnectionPoolMetrics.TXN) { + this.txnConnections -= 1; + } + else if (pinType === ConnectionPoolMetrics.CURSOR) { + this.cursorConnections -= 1; + } + else { + this.otherConnections -= 1; + } + } + /** + * Return information about the cmap metrics as a string. + */ + info(maxPoolSize) { + return ('Timed out while checking out a connection from connection pool: ' + + `maxPoolSize: ${maxPoolSize}, ` + + `connections in use by cursors: ${this.cursorConnections}, ` + + `connections in use by transactions: ${this.txnConnections}, ` + + `connections in use by other operations: ${this.otherConnections}`); + } + /** + * Reset the metrics to the initial values. + */ + reset() { + this.txnConnections = 0; + this.cursorConnections = 0; + this.otherConnections = 0; + } +} +ConnectionPoolMetrics.TXN = 'txn'; +ConnectionPoolMetrics.CURSOR = 'cursor'; +ConnectionPoolMetrics.OTHER = 'other'; +exports.ConnectionPoolMetrics = ConnectionPoolMetrics; +//# sourceMappingURL=metrics.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/metrics.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/metrics.js.map new file mode 100644 index 000000000..c3b5fe25c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/metrics.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/stream_description.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/stream_description.js new file mode 100644 index 000000000..1665c6ebb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/stream_description.js @@ -0,0 +1,70 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.StreamDescription = void 0; +const bson_1 = require("../bson"); +const common_1 = require("../sdam/common"); +const server_description_1 = require("../sdam/server_description"); +const RESPONSE_FIELDS = [ + 'minWireVersion', + 'maxWireVersion', + 'maxBsonObjectSize', + 'maxMessageSizeBytes', + 'maxWriteBatchSize', + 'logicalSessionTimeoutMinutes' +]; +/** @public */ +class StreamDescription { + constructor(address, options) { + this.hello = null; + this.address = address; + this.type = common_1.ServerType.Unknown; + this.minWireVersion = undefined; + this.maxWireVersion = undefined; + this.maxBsonObjectSize = 16777216; + this.maxMessageSizeBytes = 48000000; + this.maxWriteBatchSize = 100000; + this.logicalSessionTimeoutMinutes = options?.logicalSessionTimeoutMinutes; + this.loadBalanced = !!options?.loadBalanced; + this.compressors = + options && options.compressors && Array.isArray(options.compressors) + ? options.compressors + : []; + this.serverConnectionId = null; + } + receiveResponse(response) { + if (response == null) { + return; + } + this.hello = response; + this.type = (0, server_description_1.parseServerType)(response); + if ('connectionId' in response) { + this.serverConnectionId = this.parseServerConnectionID(response.connectionId); + } + else { + this.serverConnectionId = null; + } + for (const field of RESPONSE_FIELDS) { + if (response[field] != null) { + this[field] = response[field]; + } + // testing case + if ('__nodejs_mock_server__' in response) { + this.__nodejs_mock_server__ = response['__nodejs_mock_server__']; + } + } + if (response.compression) { + this.compressor = this.compressors.filter(c => response.compression?.includes(c))[0]; + } + } + /* @internal */ + parseServerConnectionID(serverConnectionId) { + // Connection ids are always integral, so it's safe to coerce doubles as well as + // any integral type. + return bson_1.Long.isLong(serverConnectionId) + ? serverConnectionId.toBigInt() + : // @ts-expect-error: Doubles are coercible to number + BigInt(serverConnectionId); + } +} +exports.StreamDescription = StreamDescription; +//# sourceMappingURL=stream_description.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/stream_description.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/stream_description.js.map new file mode 100644 index 000000000..f05a5f0b5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/stream_description.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/compression.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/compression.js new file mode 100644 index 000000000..875d00148 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/compression.js @@ -0,0 +1,163 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.decompressResponse = exports.compressCommand = exports.decompress = exports.compress = exports.uncompressibleCommands = exports.Compressor = void 0; +const util_1 = require("util"); +const zlib = require("zlib"); +const constants_1 = require("../../constants"); +const deps_1 = require("../../deps"); +const error_1 = require("../../error"); +const commands_1 = require("../commands"); +const constants_2 = require("./constants"); +/** @public */ +exports.Compressor = Object.freeze({ + none: 0, + snappy: 1, + zlib: 2, + zstd: 3 +}); +exports.uncompressibleCommands = new Set([ + constants_1.LEGACY_HELLO_COMMAND, + 'saslStart', + 'saslContinue', + 'getnonce', + 'authenticate', + 'createUser', + 'updateUser', + 'copydbSaslStart', + 'copydbgetnonce', + 'copydb' +]); +const ZSTD_COMPRESSION_LEVEL = 3; +const zlibInflate = (0, util_1.promisify)(zlib.inflate.bind(zlib)); +const zlibDeflate = (0, util_1.promisify)(zlib.deflate.bind(zlib)); +let zstd; +let Snappy = null; +function loadSnappy() { + if (Snappy == null) { + const snappyImport = (0, deps_1.getSnappy)(); + if ('kModuleError' in snappyImport) { + throw snappyImport.kModuleError; + } + Snappy = snappyImport; + } + return Snappy; +} +// Facilitate compressing a message using an agreed compressor +async function compress(options, dataToBeCompressed) { + const zlibOptions = {}; + switch (options.agreedCompressor) { + case 'snappy': { + Snappy ??= loadSnappy(); + return await Snappy.compress(dataToBeCompressed); + } + case 'zstd': { + loadZstd(); + if ('kModuleError' in zstd) { + throw zstd['kModuleError']; + } + return await zstd.compress(dataToBeCompressed, ZSTD_COMPRESSION_LEVEL); + } + case 'zlib': { + if (options.zlibCompressionLevel) { + zlibOptions.level = options.zlibCompressionLevel; + } + return await zlibDeflate(dataToBeCompressed, zlibOptions); + } + default: { + throw new error_1.MongoInvalidArgumentError(`Unknown compressor ${options.agreedCompressor} failed to compress`); + } + } +} +exports.compress = compress; +// Decompress a message using the given compressor +async function decompress(compressorID, compressedData) { + if (compressorID !== exports.Compressor.snappy && + compressorID !== exports.Compressor.zstd && + compressorID !== exports.Compressor.zlib && + compressorID !== exports.Compressor.none) { + throw new error_1.MongoDecompressionError(`Server sent message compressed using an unsupported compressor. (Received compressor ID ${compressorID})`); + } + switch (compressorID) { + case exports.Compressor.snappy: { + Snappy ??= loadSnappy(); + return await Snappy.uncompress(compressedData, { asBuffer: true }); + } + case exports.Compressor.zstd: { + loadZstd(); + if ('kModuleError' in zstd) { + throw zstd['kModuleError']; + } + return await zstd.decompress(compressedData); + } + case exports.Compressor.zlib: { + return await zlibInflate(compressedData); + } + default: { + return compressedData; + } + } +} +exports.decompress = decompress; +/** + * Load ZStandard if it is not already set. + */ +function loadZstd() { + if (!zstd) { + zstd = (0, deps_1.getZstdLibrary)(); + } +} +const MESSAGE_HEADER_SIZE = 16; +/** + * @internal + * + * Compresses an OP_MSG or OP_QUERY message, if compression is configured. This method + * also serializes the command to BSON. + */ +async function compressCommand(command, description) { + const finalCommand = description.agreedCompressor === 'none' || !commands_1.OpCompressedRequest.canCompress(command) + ? command + : new commands_1.OpCompressedRequest(command, { + agreedCompressor: description.agreedCompressor ?? 'none', + zlibCompressionLevel: description.zlibCompressionLevel ?? 0 + }); + const data = await finalCommand.toBin(); + return Buffer.concat(data); +} +exports.compressCommand = compressCommand; +/** + * @internal + * + * Decompresses an OP_MSG or OP_QUERY response from the server, if compression is configured. + * + * This method does not parse the response's BSON. + */ +async function decompressResponse(message) { + const messageHeader = { + length: message.readInt32LE(0), + requestId: message.readInt32LE(4), + responseTo: message.readInt32LE(8), + opCode: message.readInt32LE(12) + }; + if (messageHeader.opCode !== constants_2.OP_COMPRESSED) { + const ResponseType = messageHeader.opCode === constants_2.OP_MSG ? commands_1.OpMsgResponse : commands_1.OpReply; + const messageBody = message.subarray(MESSAGE_HEADER_SIZE); + return new ResponseType(message, messageHeader, messageBody); + } + const header = { + ...messageHeader, + fromCompressed: true, + opCode: message.readInt32LE(MESSAGE_HEADER_SIZE), + length: message.readInt32LE(MESSAGE_HEADER_SIZE + 4) + }; + const compressorID = message[MESSAGE_HEADER_SIZE + 8]; + const compressedBuffer = message.slice(MESSAGE_HEADER_SIZE + 9); + // recalculate based on wrapped opcode + const ResponseType = header.opCode === constants_2.OP_MSG ? commands_1.OpMsgResponse : commands_1.OpReply; + const messageBody = await decompress(compressorID, compressedBuffer); + if (messageBody.length !== header.length) { + throw new error_1.MongoDecompressionError('Message body and message header must be the same length'); + } + return new ResponseType(message, header, messageBody); +} +exports.decompressResponse = decompressResponse; +//# sourceMappingURL=compression.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/compression.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/compression.js.map new file mode 100644 index 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/constants.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/constants.js new file mode 100644 index 000000000..b250859a2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/constants.js @@ -0,0 +1,17 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.OP_MSG = exports.OP_COMPRESSED = exports.OP_DELETE = exports.OP_QUERY = exports.OP_INSERT = exports.OP_UPDATE = exports.OP_REPLY = exports.MIN_SUPPORTED_QE_SERVER_VERSION = exports.MIN_SUPPORTED_QE_WIRE_VERSION = exports.MAX_SUPPORTED_WIRE_VERSION = exports.MIN_SUPPORTED_WIRE_VERSION = exports.MAX_SUPPORTED_SERVER_VERSION = exports.MIN_SUPPORTED_SERVER_VERSION = void 0; +exports.MIN_SUPPORTED_SERVER_VERSION = '3.6'; +exports.MAX_SUPPORTED_SERVER_VERSION = '7.0'; +exports.MIN_SUPPORTED_WIRE_VERSION = 6; +exports.MAX_SUPPORTED_WIRE_VERSION = 21; +exports.MIN_SUPPORTED_QE_WIRE_VERSION = 21; +exports.MIN_SUPPORTED_QE_SERVER_VERSION = '7.0'; +exports.OP_REPLY = 1; +exports.OP_UPDATE = 2001; +exports.OP_INSERT = 2002; +exports.OP_QUERY = 2004; +exports.OP_DELETE = 2006; +exports.OP_COMPRESSED = 2012; +exports.OP_MSG = 2013; +//# sourceMappingURL=constants.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/constants.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/constants.js.map new file mode 100644 index 000000000..6aa9450b9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/constants.js.map @@ -0,0 +1 @@ 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}); +exports.onData = void 0; +const utils_1 = require("../../utils"); +/** + * onData is adapted from Node.js' events.on helper + * https://nodejs.org/api/events.html#eventsonemitter-eventname-options + * + * Returns an AsyncIterator that iterates each 'data' event emitted from emitter. + * It will reject upon an error event. + */ +function onData(emitter) { + // Setup pending events and pending promise lists + /** + * When the caller has not yet called .next(), we store the + * value from the event in this list. Next time they call .next() + * we pull the first value out of this list and resolve a promise with it. + */ + const unconsumedEvents = new utils_1.List(); + /** + * When there has not yet been an event, a new promise will be created + * and implicitly stored in this list. When an event occurs we take the first + * promise in this list and resolve it. + */ + const unconsumedPromises = new utils_1.List(); + /** + * Stored an error created by an error event. + * This error will turn into a rejection for the subsequent .next() call + */ + let error = null; + /** Set to true only after event listeners have been removed. */ + let finished = false; + const iterator = { + next() { + // First, we consume all unread events + const value = unconsumedEvents.shift(); + if (value != null) { + return Promise.resolve({ value, done: false }); + } + // Then we error, if an error happened + // This happens one time if at all, because after 'error' + // we stop listening + if (error != null) { + const p = Promise.reject(error); + // Only the first element errors + error = null; + return p; + } + // If the iterator is finished, resolve to done + if (finished) + return closeHandler(); + // Wait until an event happens + const { promise, resolve, reject } = (0, utils_1.promiseWithResolvers)(); + unconsumedPromises.push({ resolve, reject }); + return promise; + }, + return() { + return closeHandler(); + }, + throw(err) { + errorHandler(err); + return Promise.resolve({ value: undefined, done: true }); + }, + [Symbol.asyncIterator]() { + return this; + } + }; + // Adding event handlers + emitter.on('data', eventHandler); + emitter.on('error', errorHandler); + return iterator; + function eventHandler(value) { + const promise = unconsumedPromises.shift(); + if (promise != null) + promise.resolve({ value, done: false }); + else + unconsumedEvents.push(value); + } + function errorHandler(err) { + const promise = unconsumedPromises.shift(); + if (promise != null) + promise.reject(err); + else + error = err; + void closeHandler(); + } + function closeHandler() { + // Adding event handlers + emitter.off('data', eventHandler); + emitter.off('error', errorHandler); + finished = true; + const doneResult = { value: undefined, done: finished }; + for (const promise of unconsumedPromises) { + promise.resolve(doneResult); + } + return Promise.resolve(doneResult); + } +} +exports.onData = onData; +//# sourceMappingURL=on_data.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js.map new file mode 100644 index 000000000..8fed2f989 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_data.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js new file mode 100644 index 000000000..54490ebd8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js @@ -0,0 +1,218 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.OnDemandDocument = void 0; +const bson_1 = require("../../../bson"); +/** @internal */ +class OnDemandDocument { + constructor( + /** BSON bytes, this document begins at offset */ + bson, + /** The start of the document */ + offset = 0, + /** If this is an embedded document, indicates if this was a BSON array */ + isArray = false) { + this.bson = bson; + this.offset = offset; + this.isArray = isArray; + /** + * Maps JS strings to elements and jsValues for speeding up subsequent lookups. + * - If `false` then name does not exist in the BSON document + * - If `CachedBSONElement` instance name exists + * - If `cache[name].value == null` jsValue has not yet been parsed + * - Null/Undefined values do not get cached because they are zero-length values. + */ + this.cache = Object.create(null); + /** Caches the index of elements that have been named */ + this.indexFound = Object.create(null); + this.elements = (0, bson_1.parseToElementsToArray)(this.bson, offset); + } + /** Only supports basic latin strings */ + isElementName(name, element) { + const nameLength = element[2 /* BSONElementOffset.nameLength */]; + const nameOffset = element[1 /* BSONElementOffset.nameOffset */]; + if (name.length !== nameLength) + return false; + for (let i = 0; i < name.length; i++) { + if (this.bson[nameOffset + i] !== name.charCodeAt(i)) + return false; + } + return true; + } + /** + * Seeks into the elements array for an element matching the given name. + * + * @remarks + * Caching: + * - Caches the existence of a property making subsequent look ups for non-existent properties return immediately + * - Caches names mapped to elements to avoid reiterating the array and comparing the name again + * - Caches the index at which an element has been found to prevent rechecking against elements already determined to belong to another name + * + * @param name - a basic latin string name of a BSON element + * @returns + */ + getElement(name) { + const cachedElement = this.cache[name]; + if (cachedElement === false) + return null; + if (cachedElement != null) { + return cachedElement; + } + if (typeof name === 'number') { + if (this.isArray) { + if (name < this.elements.length) { + const element = this.elements[name]; + const cachedElement = { element, value: undefined }; + this.cache[name] = cachedElement; + this.indexFound[name] = true; + return cachedElement; + } + else { + return null; + } + } + else { + return null; + } + } + for (let index = 0; index < this.elements.length; index++) { + const element = this.elements[index]; + // skip this element if it has already been associated with a name + if (!this.indexFound[index] && this.isElementName(name, element)) { + const cachedElement = { element, value: undefined }; + this.cache[name] = cachedElement; + this.indexFound[index] = true; + return cachedElement; + } + } + this.cache[name] = false; + return null; + } + toJSValue(element, as) { + const type = element[0 /* BSONElementOffset.type */]; + const offset = element[3 /* BSONElementOffset.offset */]; + const length = element[4 /* BSONElementOffset.length */]; + if (as !== type) { + return null; + } + switch (as) { + case bson_1.BSONType.null: + case bson_1.BSONType.undefined: + return null; + case bson_1.BSONType.double: + return (0, bson_1.getFloat64LE)(this.bson, offset); + case bson_1.BSONType.int: + return (0, bson_1.getInt32LE)(this.bson, offset); + case bson_1.BSONType.long: + return (0, bson_1.getBigInt64LE)(this.bson, offset); + case bson_1.BSONType.bool: + return Boolean(this.bson[offset]); + case bson_1.BSONType.objectId: + return new bson_1.ObjectId(this.bson.subarray(offset, offset + 12)); + case bson_1.BSONType.timestamp: + return new bson_1.Timestamp((0, bson_1.getBigInt64LE)(this.bson, offset)); + case bson_1.BSONType.string: + return (0, bson_1.toUTF8)(this.bson, offset + 4, offset + length - 1, false); + case bson_1.BSONType.binData: { + const totalBinarySize = (0, bson_1.getInt32LE)(this.bson, offset); + const subType = this.bson[offset + 4]; + if (subType === 2) { + const subType2BinarySize = (0, bson_1.getInt32LE)(this.bson, offset + 1 + 4); + if (subType2BinarySize < 0) + throw new bson_1.BSONError('Negative binary type element size found for subtype 0x02'); + if (subType2BinarySize > totalBinarySize - 4) + throw new bson_1.BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (subType2BinarySize < totalBinarySize - 4) + throw new bson_1.BSONError('Binary type with subtype 0x02 contains too short binary size'); + return new bson_1.Binary(this.bson.subarray(offset + 1 + 4 + 4, offset + 1 + 4 + 4 + subType2BinarySize), 2); + } + return new bson_1.Binary(this.bson.subarray(offset + 1 + 4, offset + 1 + 4 + totalBinarySize), subType); + } + case bson_1.BSONType.date: + // Pretend this is correct. + return new Date(Number((0, bson_1.getBigInt64LE)(this.bson, offset))); + case bson_1.BSONType.object: + return new OnDemandDocument(this.bson, offset); + case bson_1.BSONType.array: + return new OnDemandDocument(this.bson, offset, true); + default: + throw new bson_1.BSONError(`Unsupported BSON type: ${as}`); + } + } + /** + * Returns the number of elements in this BSON document + */ + size() { + return this.elements.length; + } + /** + * Checks for the existence of an element by name. + * + * @remarks + * Uses `getElement` with the expectation that will populate caches such that a `has` call + * followed by a `getElement` call will not repeat the cost paid by the first look up. + * + * @param name - element name + */ + has(name) { + const cachedElement = this.cache[name]; + if (cachedElement === false) + return false; + if (cachedElement != null) + return true; + return this.getElement(name) != null; + } + get(name, as, required) { + const element = this.getElement(name); + if (element == null) { + if (required === true) { + throw new bson_1.BSONError(`BSON element "${name}" is missing`); + } + else { + return null; + } + } + if (element.value == null) { + const value = this.toJSValue(element.element, as); + if (value == null) { + if (required === true) { + throw new bson_1.BSONError(`BSON element "${name}" is missing`); + } + else { + return null; + } + } + // It is important to never store null + element.value = value; + } + return element.value; + } + getNumber(name, required) { + const maybeBool = this.get(name, bson_1.BSONType.bool); + const bool = maybeBool == null ? null : maybeBool ? 1 : 0; + const maybeLong = this.get(name, bson_1.BSONType.long); + const long = maybeLong == null ? null : Number(maybeLong); + const result = bool ?? long ?? this.get(name, bson_1.BSONType.int) ?? this.get(name, bson_1.BSONType.double); + if (required === true && result == null) { + throw new bson_1.BSONError(`BSON element "${name}" is missing`); + } + return result; + } + /** + * Deserialize this object, DOES NOT cache result so avoid multiple invocations + * @param options - BSON deserialization options + */ + toObject(options) { + return bson_1.BSON.deserialize(this.bson, { + ...options, + index: this.offset, + allowObjectSmallerThanBufferSize: true + }); + } + /** Returns this document's bytes only */ + toBytes() { + const size = (0, bson_1.getInt32LE)(this.bson, this.offset); + return this.bson.subarray(this.offset, this.offset + size); + } +} +exports.OnDemandDocument = OnDemandDocument; +//# sourceMappingURL=document.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js.map new file mode 100644 index 000000000..019df95e5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/on_demand/document.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/responses.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/responses.js new file mode 100644 index 000000000..840e9a823 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/responses.js @@ -0,0 +1,184 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CursorResponse = exports.MongoDBResponse = exports.isErrorResponse = void 0; +const bson_1 = require("../../bson"); +const error_1 = require("../../error"); +const utils_1 = require("../../utils"); +const document_1 = require("./on_demand/document"); +/** + * Accepts a BSON payload and checks for na "ok: 0" element. + * This utility is intended to prevent calling response class constructors + * that expect the result to be a success and demand certain properties to exist. + * + * For example, a cursor response always expects a cursor embedded document. + * In order to write the class such that the properties reflect that assertion (non-null) + * we cannot invoke the subclass constructor if the BSON represents an error. + * + * @param bytes - BSON document returned from the server + */ +function isErrorResponse(bson) { + const elements = (0, bson_1.parseToElementsToArray)(bson, 0); + for (let eIdx = 0; eIdx < elements.length; eIdx++) { + const element = elements[eIdx]; + if (element[2 /* BSONElementOffset.nameLength */] === 2) { + const nameOffset = element[1 /* BSONElementOffset.nameOffset */]; + // 111 == "o", 107 == "k" + if (bson[nameOffset] === 111 && bson[nameOffset + 1] === 107) { + const valueOffset = element[3 /* BSONElementOffset.offset */]; + const valueLength = element[4 /* BSONElementOffset.length */]; + // If any byte in the length of the ok number (works for any type) is non zero, + // then it is considered "ok: 1" + for (let i = valueOffset; i < valueOffset + valueLength; i++) { + if (bson[i] !== 0x00) + return false; + } + return true; + } + } + } + return true; +} +exports.isErrorResponse = isErrorResponse; +/** @internal */ +class MongoDBResponse extends document_1.OnDemandDocument { + static is(value) { + return value instanceof MongoDBResponse; + } + /** Indicates this document is a server error */ + get isError() { + let isError = this.ok === 0; + isError ||= this.has('errmsg'); + isError ||= this.has('code'); + isError ||= this.has('$err'); // The '$err' field is used in OP_REPLY responses + return isError; + } + /** + * Drivers can safely assume that the `recoveryToken` field is always a BSON document but drivers MUST NOT modify the + * contents of the document. + */ + get recoveryToken() { + return (this.get('recoveryToken', bson_1.BSONType.object)?.toObject({ + promoteValues: false, + promoteLongs: false, + promoteBuffers: false + }) ?? null); + } + /** + * The server creates a cursor in response to a snapshot find/aggregate command and reports atClusterTime within the cursor field in the response. + * For the distinct command the server adds a top-level atClusterTime field to the response. + * The atClusterTime field represents the timestamp of the read and is guaranteed to be majority committed. + */ + get atClusterTime() { + return (this.get('cursor', bson_1.BSONType.object)?.get('atClusterTime', bson_1.BSONType.timestamp) ?? + this.get('atClusterTime', bson_1.BSONType.timestamp)); + } + get operationTime() { + return this.get('operationTime', bson_1.BSONType.timestamp); + } + get ok() { + return this.getNumber('ok') ? 1 : 0; + } + get $err() { + return this.get('$err', bson_1.BSONType.string); + } + get errmsg() { + return this.get('errmsg', bson_1.BSONType.string); + } + get code() { + return this.getNumber('code'); + } + get $clusterTime() { + if (!('clusterTime' in this)) { + const clusterTimeDoc = this.get('$clusterTime', bson_1.BSONType.object); + if (clusterTimeDoc == null) { + this.clusterTime = null; + return null; + } + const clusterTime = clusterTimeDoc.get('clusterTime', bson_1.BSONType.timestamp, true); + const signature = clusterTimeDoc.get('signature', bson_1.BSONType.object)?.toObject(); + // @ts-expect-error: `signature` is incorrectly typed. It is public API. + this.clusterTime = { clusterTime, signature }; + } + return this.clusterTime ?? null; + } + toObject(options) { + const exactBSONOptions = { + useBigInt64: options?.useBigInt64, + promoteLongs: options?.promoteLongs, + promoteValues: options?.promoteValues, + promoteBuffers: options?.promoteBuffers, + bsonRegExp: options?.bsonRegExp, + raw: options?.raw ?? false, + fieldsAsRaw: options?.fieldsAsRaw ?? {}, + validation: this.parseBsonSerializationOptions(options) + }; + return super.toObject(exactBSONOptions); + } + parseBsonSerializationOptions(options) { + const enableUtf8Validation = options?.enableUtf8Validation; + if (enableUtf8Validation === false) { + return { utf8: false }; + } + return { utf8: { writeErrors: false } }; + } +} +// {ok:1} +MongoDBResponse.empty = new MongoDBResponse(new Uint8Array([13, 0, 0, 0, 16, 111, 107, 0, 1, 0, 0, 0, 0])); +exports.MongoDBResponse = MongoDBResponse; +/** @internal */ +class CursorResponse extends MongoDBResponse { + static is(value) { + return value instanceof CursorResponse || value === CursorResponse.emptyGetMore; + } + constructor(bytes, offset, isArray) { + super(bytes, offset, isArray); + this.ns = null; + this.batchSize = 0; + this.iterated = 0; + const cursor = this.get('cursor', bson_1.BSONType.object, true); + const id = cursor.get('id', bson_1.BSONType.long, true); + this.id = new bson_1.Long(Number(id & 0xffffffffn), Number((id >> 32n) & 0xffffffffn)); + const namespace = cursor.get('ns', bson_1.BSONType.string); + if (namespace != null) + this.ns = (0, utils_1.ns)(namespace); + if (cursor.has('firstBatch')) + this.batch = cursor.get('firstBatch', bson_1.BSONType.array, true); + else if (cursor.has('nextBatch')) + this.batch = cursor.get('nextBatch', bson_1.BSONType.array, true); + else + throw new error_1.MongoUnexpectedServerResponseError('Cursor document did not contain a batch'); + this.batchSize = this.batch.size(); + } + get length() { + return Math.max(this.batchSize - this.iterated, 0); + } + shift(options) { + if (this.iterated >= this.batchSize) { + return null; + } + const result = this.batch.get(this.iterated, bson_1.BSONType.object, true) ?? null; + this.iterated += 1; + if (options?.raw) { + return result.toBytes(); + } + else { + return result.toObject(options); + } + } + clear() { + this.iterated = this.batchSize; + } + pushMany() { + throw new Error('pushMany Unsupported method'); + } + push() { + throw new Error('push Unsupported method'); + } +} +/** + * This supports a feature of the FindCursor. + * It is an optimization to avoid an extra getMore when the limit has been reached + */ +CursorResponse.emptyGetMore = { id: new bson_1.Long(0), length: 0, shift: () => null }; +exports.CursorResponse = CursorResponse; +//# sourceMappingURL=responses.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/responses.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/responses.js.map new file mode 100644 index 000000000..bf544a0c9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/responses.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/shared.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/shared.js new file mode 100644 index 000000000..f4d4eeeff --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/shared.js @@ -0,0 +1,36 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.isSharded = exports.getReadPreference = void 0; +const error_1 = require("../../error"); +const read_preference_1 = require("../../read_preference"); +const common_1 = require("../../sdam/common"); +const topology_description_1 = require("../../sdam/topology_description"); +function getReadPreference(options) { + // Default to command version of the readPreference. + let readPreference = options?.readPreference ?? read_preference_1.ReadPreference.primary; + if (typeof readPreference === 'string') { + readPreference = read_preference_1.ReadPreference.fromString(readPreference); + } + if (!(readPreference instanceof read_preference_1.ReadPreference)) { + throw new error_1.MongoInvalidArgumentError('Option "readPreference" must be a ReadPreference instance'); + } + return readPreference; +} +exports.getReadPreference = getReadPreference; +function isSharded(topologyOrServer) { + if (topologyOrServer == null) { + return false; + } + if (topologyOrServer.description && topologyOrServer.description.type === common_1.ServerType.Mongos) { + return true; + } + // NOTE: This is incredibly inefficient, and should be removed once command construction + // happens based on `Server` not `Topology`. + if (topologyOrServer.description && topologyOrServer.description instanceof topology_description_1.TopologyDescription) { + const servers = Array.from(topologyOrServer.description.servers.values()); + return servers.some((server) => server.type === common_1.ServerType.Mongos); + } + return false; +} +exports.isSharded = isSharded; +//# sourceMappingURL=shared.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/shared.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/shared.js.map new file mode 100644 index 000000000..0861cb85b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cmap/wire_protocol/shared.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/collection.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/collection.js new file mode 100644 index 000000000..1fcc59540 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/collection.js @@ -0,0 +1,634 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Collection = void 0; +const bson_1 = require("./bson"); +const ordered_1 = require("./bulk/ordered"); +const unordered_1 = require("./bulk/unordered"); +const change_stream_1 = require("./change_stream"); +const aggregation_cursor_1 = require("./cursor/aggregation_cursor"); +const find_cursor_1 = require("./cursor/find_cursor"); +const list_indexes_cursor_1 = require("./cursor/list_indexes_cursor"); +const list_search_indexes_cursor_1 = require("./cursor/list_search_indexes_cursor"); +const error_1 = require("./error"); +const bulk_write_1 = require("./operations/bulk_write"); +const count_1 = require("./operations/count"); +const count_documents_1 = require("./operations/count_documents"); +const delete_1 = require("./operations/delete"); +const distinct_1 = require("./operations/distinct"); +const drop_1 = require("./operations/drop"); +const estimated_document_count_1 = require("./operations/estimated_document_count"); +const execute_operation_1 = require("./operations/execute_operation"); +const find_and_modify_1 = require("./operations/find_and_modify"); +const indexes_1 = require("./operations/indexes"); +const insert_1 = require("./operations/insert"); +const is_capped_1 = require("./operations/is_capped"); +const options_operation_1 = require("./operations/options_operation"); +const rename_1 = require("./operations/rename"); +const create_1 = require("./operations/search_indexes/create"); +const drop_2 = require("./operations/search_indexes/drop"); +const update_1 = require("./operations/search_indexes/update"); +const update_2 = require("./operations/update"); +const read_concern_1 = require("./read_concern"); +const read_preference_1 = require("./read_preference"); +const utils_1 = require("./utils"); +const write_concern_1 = require("./write_concern"); +/** + * The **Collection** class is an internal class that embodies a MongoDB collection + * allowing for insert/find/update/delete and other command operation on that MongoDB collection. + * + * **COLLECTION Cannot directly be instantiated** + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * interface Pet { + * name: string; + * kind: 'dog' | 'cat' | 'fish'; + * } + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const pets = client.db().collection('pets'); + * + * const petCursor = pets.find(); + * + * for await (const pet of petCursor) { + * console.log(`${pet.name} is a ${pet.kind}!`); + * } + * ``` + */ +class Collection { + /** + * Create a new Collection instance + * @internal + */ + constructor(db, name, options) { + // Internal state + this.s = { + db, + options, + namespace: new utils_1.MongoDBCollectionNamespace(db.databaseName, name), + pkFactory: db.options?.pkFactory ?? utils_1.DEFAULT_PK_FACTORY, + readPreference: read_preference_1.ReadPreference.fromOptions(options), + bsonOptions: (0, bson_1.resolveBSONOptions)(options, db), + readConcern: read_concern_1.ReadConcern.fromOptions(options), + writeConcern: write_concern_1.WriteConcern.fromOptions(options) + }; + this.client = db.client; + } + /** + * The name of the database this collection belongs to + */ + get dbName() { + return this.s.namespace.db; + } + /** + * The name of this collection + */ + get collectionName() { + return this.s.namespace.collection; + } + /** + * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}` + */ + get namespace() { + return this.fullNamespace.toString(); + } + /** + * @internal + * + * The `MongoDBNamespace` for the collection. + */ + get fullNamespace() { + return this.s.namespace; + } + /** + * The current readConcern of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get readConcern() { + if (this.s.readConcern == null) { + return this.s.db.readConcern; + } + return this.s.readConcern; + } + /** + * The current readPreference of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get readPreference() { + if (this.s.readPreference == null) { + return this.s.db.readPreference; + } + return this.s.readPreference; + } + get bsonOptions() { + return this.s.bsonOptions; + } + /** + * The current writeConcern of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get writeConcern() { + if (this.s.writeConcern == null) { + return this.s.db.writeConcern; + } + return this.s.writeConcern; + } + /** The current index hint for the collection */ + get hint() { + return this.s.collectionHint; + } + set hint(v) { + this.s.collectionHint = (0, utils_1.normalizeHintField)(v); + } + /** + * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param doc - The document to insert + * @param options - Optional settings for the command + */ + async insertOne(doc, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new insert_1.InsertOneOperation(this, doc, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param docs - The documents to insert + * @param options - Optional settings for the command + */ + async insertMany(docs, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new insert_1.InsertManyOperation(this, docs, (0, utils_1.resolveOptions)(this, options ?? { ordered: true }))); + } + /** + * Perform a bulkWrite operation without a fluent API + * + * Legal operation types are + * - `insertOne` + * - `replaceOne` + * - `updateOne` + * - `updateMany` + * - `deleteOne` + * - `deleteMany` + * + * If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param operations - Bulk operations to perform + * @param options - Optional settings for the command + * @throws MongoDriverError if operations is not an array + */ + async bulkWrite(operations, options) { + if (!Array.isArray(operations)) { + throw new error_1.MongoInvalidArgumentError('Argument "operations" must be an array of documents'); + } + return await (0, execute_operation_1.executeOperation)(this.client, new bulk_write_1.BulkWriteOperation(this, operations, (0, utils_1.resolveOptions)(this, options ?? { ordered: true }))); + } + /** + * Update a single document in a collection + * + * The value of `update` can be either: + * - UpdateFilter - A document that contains update operator expressions, + * - Document[] - an aggregation pipeline. + * + * @param filter - The filter used to select the document to update + * @param update - The modifications to apply + * @param options - Optional settings for the command + */ + async updateOne(filter, update, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new update_2.UpdateOneOperation(this, filter, update, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Replace a document in a collection with another document + * + * @param filter - The filter used to select the document to replace + * @param replacement - The Document that replaces the matching document + * @param options - Optional settings for the command + */ + async replaceOne(filter, replacement, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new update_2.ReplaceOneOperation(this, filter, replacement, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Update multiple documents in a collection + * + * The value of `update` can be either: + * - UpdateFilter - A document that contains update operator expressions, + * - Document[] - an aggregation pipeline. + * + * @param filter - The filter used to select the document to update + * @param update - The modifications to apply + * @param options - Optional settings for the command + */ + async updateMany(filter, update, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new update_2.UpdateManyOperation(this, filter, update, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Delete a document from a collection + * + * @param filter - The filter used to select the document to remove + * @param options - Optional settings for the command + */ + async deleteOne(filter = {}, options = {}) { + return await (0, execute_operation_1.executeOperation)(this.client, new delete_1.DeleteOneOperation(this, filter, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Delete multiple documents from a collection + * + * @param filter - The filter used to select the documents to remove + * @param options - Optional settings for the command + */ + async deleteMany(filter = {}, options = {}) { + return await (0, execute_operation_1.executeOperation)(this.client, new delete_1.DeleteManyOperation(this, filter, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Rename the collection. + * + * @remarks + * This operation does not inherit options from the Db or MongoClient. + * + * @param newName - New name of of the collection. + * @param options - Optional settings for the command + */ + async rename(newName, options) { + // Intentionally, we do not inherit options from parent for this operation. + return await (0, execute_operation_1.executeOperation)(this.client, new rename_1.RenameOperation(this, newName, { + ...options, + readPreference: read_preference_1.ReadPreference.PRIMARY + })); + } + /** + * Drop the collection from the database, removing it permanently. New accesses will create a new collection. + * + * @param options - Optional settings for the command + */ + async drop(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new drop_1.DropCollectionOperation(this.s.db, this.collectionName, options)); + } + async findOne(filter = {}, options = {}) { + const cursor = this.find(filter, options).limit(-1).batchSize(1); + const res = await cursor.next(); + await cursor.close(); + return res; + } + find(filter = {}, options = {}) { + return new find_cursor_1.FindCursor(this.client, this.s.namespace, filter, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Returns the options of the collection. + * + * @param options - Optional settings for the command + */ + async options(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new options_operation_1.OptionsOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Returns if the collection is a capped collection + * + * @param options - Optional settings for the command + */ + async isCapped(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new is_capped_1.IsCappedOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Creates an index on the db and collection collection. + * + * @param indexSpec - The field name or index specification to create an index for + * @param options - Optional settings for the command + * + * @example + * ```ts + * const collection = client.db('foo').collection('bar'); + * + * await collection.createIndex({ a: 1, b: -1 }); + * + * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes + * await collection.createIndex([ [c, 1], [d, -1] ]); + * + * // Equivalent to { e: 1 } + * await collection.createIndex('e'); + * + * // Equivalent to { f: 1, g: 1 } + * await collection.createIndex(['f', 'g']) + * + * // Equivalent to { h: 1, i: -1 } + * await collection.createIndex([ { h: 1 }, { i: -1 } ]); + * + * // Equivalent to { j: 1, k: -1, l: 2d } + * await collection.createIndex(['j', ['k', -1], { l: '2d' }]) + * ``` + */ + async createIndex(indexSpec, options) { + const indexes = await (0, execute_operation_1.executeOperation)(this.client, indexes_1.CreateIndexesOperation.fromIndexSpecification(this, this.collectionName, indexSpec, (0, utils_1.resolveOptions)(this, options))); + return indexes[0]; + } + /** + * Creates multiple indexes in the collection, this method is only supported for + * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported + * error. + * + * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications. + * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}. + * + * @param indexSpecs - An array of index specifications to be created + * @param options - Optional settings for the command + * + * @example + * ```ts + * const collection = client.db('foo').collection('bar'); + * await collection.createIndexes([ + * // Simple index on field fizz + * { + * key: { fizz: 1 }, + * } + * // wildcard index + * { + * key: { '$**': 1 } + * }, + * // named index on darmok and jalad + * { + * key: { darmok: 1, jalad: -1 } + * name: 'tanagra' + * } + * ]); + * ``` + */ + async createIndexes(indexSpecs, options) { + return await (0, execute_operation_1.executeOperation)(this.client, indexes_1.CreateIndexesOperation.fromIndexDescriptionArray(this, this.collectionName, indexSpecs, (0, utils_1.resolveOptions)(this, { ...options, maxTimeMS: undefined }))); + } + /** + * Drops an index from this collection. + * + * @param indexName - Name of the index to drop. + * @param options - Optional settings for the command + */ + async dropIndex(indexName, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new indexes_1.DropIndexOperation(this, indexName, { + ...(0, utils_1.resolveOptions)(this, options), + readPreference: read_preference_1.ReadPreference.primary + })); + } + /** + * Drops all indexes from this collection. + * + * @param options - Optional settings for the command + */ + async dropIndexes(options) { + try { + await (0, execute_operation_1.executeOperation)(this.client, new indexes_1.DropIndexOperation(this, '*', (0, utils_1.resolveOptions)(this, options))); + return true; + } + catch { + return false; + } + } + /** + * Get the list of all indexes information for the collection. + * + * @param options - Optional settings for the command + */ + listIndexes(options) { + return new list_indexes_cursor_1.ListIndexesCursor(this, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Checks if one or more indexes exist on the collection, fails on first non-existing index + * + * @param indexes - One or more index names to check. + * @param options - Optional settings for the command + */ + async indexExists(indexes, options) { + const indexNames = Array.isArray(indexes) ? indexes : [indexes]; + const allIndexes = new Set(await this.listIndexes(options) + .map(({ name }) => name) + .toArray()); + return indexNames.every(name => allIndexes.has(name)); + } + async indexInformation(options) { + return await this.indexes({ + ...options, + full: options?.full ?? false + }); + } + /** + * Gets an estimate of the count of documents in a collection using collection metadata. + * This will always run a count command on all server versions. + * + * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command, + * which estimatedDocumentCount uses in its implementation, was not included in v1 of + * the Stable API, and so users of the Stable API with estimatedDocumentCount are + * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid + * encountering errors. + * + * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior} + * @param options - Optional settings for the command + */ + async estimatedDocumentCount(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new estimated_document_count_1.EstimatedDocumentCountOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Gets the number of documents matching the filter. + * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}. + * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments} + * the following query operators must be replaced: + * + * | Operator | Replacement | + * | -------- | ----------- | + * | `$where` | [`$expr`][1] | + * | `$near` | [`$geoWithin`][2] with [`$center`][3] | + * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] | + * + * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/ + * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center + * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere + * + * @param filter - The filter for the count + * @param options - Optional settings for the command + * + * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/ + * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center + * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere + */ + async countDocuments(filter = {}, options = {}) { + return await (0, execute_operation_1.executeOperation)(this.client, new count_documents_1.CountDocumentsOperation(this, filter, (0, utils_1.resolveOptions)(this, options))); + } + async distinct(key, filter = {}, options = {}) { + return await (0, execute_operation_1.executeOperation)(this.client, new distinct_1.DistinctOperation(this, key, filter, (0, utils_1.resolveOptions)(this, options))); + } + async indexes(options) { + const indexes = await this.listIndexes(options).toArray(); + const full = options?.full ?? true; + if (full) { + return indexes; + } + const object = Object.fromEntries(indexes.map(({ name, key }) => [name, Object.entries(key)])); + return object; + } + async findOneAndDelete(filter, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new find_and_modify_1.FindOneAndDeleteOperation(this, filter, (0, utils_1.resolveOptions)(this, options))); + } + async findOneAndReplace(filter, replacement, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new find_and_modify_1.FindOneAndReplaceOperation(this, filter, replacement, (0, utils_1.resolveOptions)(this, options))); + } + async findOneAndUpdate(filter, update, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new find_and_modify_1.FindOneAndUpdateOperation(this, filter, update, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2 + * + * @param pipeline - An array of aggregation pipelines to execute + * @param options - Optional settings for the command + */ + aggregate(pipeline = [], options) { + if (!Array.isArray(pipeline)) { + throw new error_1.MongoInvalidArgumentError('Argument "pipeline" must be an array of aggregation stages'); + } + return new aggregation_cursor_1.AggregationCursor(this.client, this.s.namespace, pipeline, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to override the schema that may be defined for this specific collection + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * @example + * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>` + * ```ts + * collection.watch<{ _id: number }>() + * .on('change', change => console.log(change._id.toFixed(4))); + * ``` + * + * @example + * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline. + * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment. + * No need start from scratch on the ChangeStreamInsertDocument type! + * By using an intersection we can save time and ensure defaults remain the same type! + * ```ts + * collection + * .watch & { comment: string }>([ + * { $addFields: { comment: 'big changes' } }, + * { $match: { operationType: 'insert' } } + * ]) + * .on('change', change => { + * change.comment.startsWith('big'); + * change.operationType === 'insert'; + * // No need to narrow in code because the generics did that for us! + * expectType(change.fullDocument); + * }); + * ``` + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TLocal - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch(pipeline = [], options = {}) { + // Allow optionally not specifying a pipeline + if (!Array.isArray(pipeline)) { + options = pipeline; + pipeline = []; + } + return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order. + * + * @throws MongoNotConnectedError + * @remarks + * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation. + * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting. + */ + initializeUnorderedBulkOp(options) { + return new unordered_1.UnorderedBulkOperation(this, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types. + * + * @throws MongoNotConnectedError + * @remarks + * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation. + * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting. + */ + initializeOrderedBulkOp(options) { + return new ordered_1.OrderedBulkOperation(this, (0, utils_1.resolveOptions)(this, options)); + } + /** + * An estimated count of matching documents in the db to a filter. + * + * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents + * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}. + * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}. + * + * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead + * + * @param filter - The filter for the count. + * @param options - Optional settings for the command + */ + async count(filter = {}, options = {}) { + return await (0, execute_operation_1.executeOperation)(this.client, new count_1.CountOperation(this.fullNamespace, filter, (0, utils_1.resolveOptions)(this, options))); + } + listSearchIndexes(indexNameOrOptions, options) { + options = + typeof indexNameOrOptions === 'object' ? indexNameOrOptions : options == null ? {} : options; + const indexName = indexNameOrOptions == null + ? null + : typeof indexNameOrOptions === 'object' + ? null + : indexNameOrOptions; + return new list_search_indexes_cursor_1.ListSearchIndexesCursor(this, indexName, options); + } + /** + * Creates a single search index for the collection. + * + * @param description - The index description for the new search index. + * @returns A promise that resolves to the name of the new search index. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + async createSearchIndex(description) { + const [index] = await this.createSearchIndexes([description]); + return index; + } + /** + * Creates multiple search indexes for the current collection. + * + * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes. + * @returns A promise that resolves to an array of the newly created search index names. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + * @returns + */ + async createSearchIndexes(descriptions) { + return await (0, execute_operation_1.executeOperation)(this.client, new create_1.CreateSearchIndexesOperation(this, descriptions)); + } + /** + * Deletes a search index by index name. + * + * @param name - The name of the search index to be deleted. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + async dropSearchIndex(name) { + return await (0, execute_operation_1.executeOperation)(this.client, new drop_2.DropSearchIndexOperation(this, name)); + } + /** + * Updates a search index by replacing the existing index definition with the provided definition. + * + * @param name - The name of the search index to update. + * @param definition - The new search index definition. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + async updateSearchIndex(name, definition) { + return await (0, execute_operation_1.executeOperation)(this.client, new update_1.UpdateSearchIndexOperation(this, name, definition)); + } +} +exports.Collection = Collection; +//# sourceMappingURL=collection.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/collection.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/collection.js.map new file mode 100644 index 000000000..3a3bc7120 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/collection.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/connection_string.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/connection_string.js new file mode 100644 index 000000000..106e50998 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/connection_string.js @@ -0,0 +1,1108 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.FEATURE_FLAGS = exports.DEFAULT_OPTIONS = exports.OPTIONS = exports.parseOptions = exports.resolveSRVRecord = void 0; +const dns = require("dns"); +const mongodb_connection_string_url_1 = require("mongodb-connection-string-url"); +const url_1 = require("url"); +const mongo_credentials_1 = require("./cmap/auth/mongo_credentials"); +const providers_1 = require("./cmap/auth/providers"); +const client_metadata_1 = require("./cmap/handshake/client_metadata"); +const compression_1 = require("./cmap/wire_protocol/compression"); +const encrypter_1 = require("./encrypter"); +const error_1 = require("./error"); +const mongo_client_1 = require("./mongo_client"); +const mongo_logger_1 = require("./mongo_logger"); +const read_concern_1 = require("./read_concern"); +const read_preference_1 = require("./read_preference"); +const monitor_1 = require("./sdam/monitor"); +const utils_1 = require("./utils"); +const write_concern_1 = require("./write_concern"); +const VALID_TXT_RECORDS = ['authSource', 'replicaSet', 'loadBalanced']; +const LB_SINGLE_HOST_ERROR = 'loadBalanced option only supported with a single host in the URI'; +const LB_REPLICA_SET_ERROR = 'loadBalanced option not supported with a replicaSet option'; +const LB_DIRECT_CONNECTION_ERROR = 'loadBalanced option not supported when directConnection is provided'; +/** + * Lookup a `mongodb+srv` connection string, combine the parts and reparse it as a normal + * connection string. + * + * @param uri - The connection string to parse + * @param options - Optional user provided connection string options + */ +async function resolveSRVRecord(options) { + if (typeof options.srvHost !== 'string') { + throw new error_1.MongoAPIError('Option "srvHost" must not be empty'); + } + if (options.srvHost.split('.').length < 3) { + // TODO(NODE-3484): Replace with MongoConnectionStringError + throw new error_1.MongoAPIError('URI must include hostname, domain name, and tld'); + } + // Asynchronously start TXT resolution so that we do not have to wait until + // the SRV record is resolved before starting a second DNS query. + const lookupAddress = options.srvHost; + const txtResolutionPromise = dns.promises.resolveTxt(lookupAddress); + // eslint-disable-next-line github/no-then + txtResolutionPromise.then(undefined, utils_1.squashError); // rejections will be handled later + // Resolve the SRV record and use the result as the list of hosts to connect to. + const addresses = await dns.promises.resolveSrv(`_${options.srvServiceName}._tcp.${lookupAddress}`); + if (addresses.length === 0) { + throw new error_1.MongoAPIError('No addresses found at host'); + } + for (const { name } of addresses) { + if (!(0, utils_1.matchesParentDomain)(name, lookupAddress)) { + throw new error_1.MongoAPIError('Server record does not share hostname with parent URI'); + } + } + const hostAddresses = addresses.map(r => utils_1.HostAddress.fromString(`${r.name}:${r.port ?? 27017}`)); + validateLoadBalancedOptions(hostAddresses, options, true); + // Use the result of resolving the TXT record and add options from there if they exist. + let record; + try { + record = await txtResolutionPromise; + } + catch (error) { + if (error.code !== 'ENODATA' && error.code !== 'ENOTFOUND') { + throw error; + } + return hostAddresses; + } + if (record.length > 1) { + throw new error_1.MongoParseError('Multiple text records not allowed'); + } + const txtRecordOptions = new url_1.URLSearchParams(record[0].join('')); + const txtRecordOptionKeys = [...txtRecordOptions.keys()]; + if (txtRecordOptionKeys.some(key => !VALID_TXT_RECORDS.includes(key))) { + throw new error_1.MongoParseError(`Text record may only set any of: ${VALID_TXT_RECORDS.join(', ')}`); + } + if (VALID_TXT_RECORDS.some(option => txtRecordOptions.get(option) === '')) { + throw new error_1.MongoParseError('Cannot have empty URI params in DNS TXT Record'); + } + const source = txtRecordOptions.get('authSource') ?? undefined; + const replicaSet = txtRecordOptions.get('replicaSet') ?? undefined; + const loadBalanced = txtRecordOptions.get('loadBalanced') ?? undefined; + if (!options.userSpecifiedAuthSource && + source && + options.credentials && + !providers_1.AUTH_MECHS_AUTH_SRC_EXTERNAL.has(options.credentials.mechanism)) { + options.credentials = mongo_credentials_1.MongoCredentials.merge(options.credentials, { source }); + } + if (!options.userSpecifiedReplicaSet && replicaSet) { + options.replicaSet = replicaSet; + } + if (loadBalanced === 'true') { + options.loadBalanced = true; + } + if (options.replicaSet && options.srvMaxHosts > 0) { + throw new error_1.MongoParseError('Cannot combine replicaSet option with srvMaxHosts'); + } + validateLoadBalancedOptions(hostAddresses, options, true); + return hostAddresses; +} +exports.resolveSRVRecord = resolveSRVRecord; +/** + * Checks if TLS options are valid + * + * @param allOptions - All options provided by user or included in default options map + * @throws MongoAPIError if TLS options are invalid + */ +function checkTLSOptions(allOptions) { + if (!allOptions) + return; + const check = (a, b) => { + if (allOptions.has(a) && allOptions.has(b)) { + throw new error_1.MongoAPIError(`The '${a}' option cannot be used with the '${b}' option`); + } + }; + check('tlsInsecure', 'tlsAllowInvalidCertificates'); + check('tlsInsecure', 'tlsAllowInvalidHostnames'); + check('tlsInsecure', 'tlsDisableCertificateRevocationCheck'); + check('tlsInsecure', 'tlsDisableOCSPEndpointCheck'); + check('tlsAllowInvalidCertificates', 'tlsDisableCertificateRevocationCheck'); + check('tlsAllowInvalidCertificates', 'tlsDisableOCSPEndpointCheck'); + check('tlsDisableCertificateRevocationCheck', 'tlsDisableOCSPEndpointCheck'); +} +function getBoolean(name, value) { + if (typeof value === 'boolean') + return value; + switch (value) { + case 'true': + return true; + case 'false': + return false; + default: + throw new error_1.MongoParseError(`${name} must be either "true" or "false"`); + } +} +function getIntFromOptions(name, value) { + const parsedInt = (0, utils_1.parseInteger)(value); + if (parsedInt != null) { + return parsedInt; + } + throw new error_1.MongoParseError(`Expected ${name} to be stringified int value, got: ${value}`); +} +function getUIntFromOptions(name, value) { + const parsedValue = getIntFromOptions(name, value); + if (parsedValue < 0) { + throw new error_1.MongoParseError(`${name} can only be a positive int value, got: ${value}`); + } + return parsedValue; +} +function* entriesFromString(value) { + if (value === '') { + return; + } + const keyValuePairs = value.split(','); + for (const keyValue of keyValuePairs) { + const [key, value] = keyValue.split(/:(.*)/); + if (value == null) { + throw new error_1.MongoParseError('Cannot have undefined values in key value pairs'); + } + yield [key, value]; + } +} +class CaseInsensitiveMap extends Map { + constructor(entries = []) { + super(entries.map(([k, v]) => [k.toLowerCase(), v])); + } + has(k) { + return super.has(k.toLowerCase()); + } + get(k) { + return super.get(k.toLowerCase()); + } + set(k, v) { + return super.set(k.toLowerCase(), v); + } + delete(k) { + return super.delete(k.toLowerCase()); + } +} +function parseOptions(uri, mongoClient = undefined, options = {}) { + if (mongoClient != null && !(mongoClient instanceof mongo_client_1.MongoClient)) { + options = mongoClient; + mongoClient = undefined; + } + // validate BSONOptions + if (options.useBigInt64 && typeof options.promoteLongs === 'boolean' && !options.promoteLongs) { + throw new error_1.MongoAPIError('Must request either bigint or Long for int64 deserialization'); + } + if (options.useBigInt64 && typeof options.promoteValues === 'boolean' && !options.promoteValues) { + throw new error_1.MongoAPIError('Must request either bigint or Long for int64 deserialization'); + } + const url = new mongodb_connection_string_url_1.default(uri); + const { hosts, isSRV } = url; + const mongoOptions = Object.create(null); + // Feature flags + for (const flag of Object.getOwnPropertySymbols(options)) { + if (exports.FEATURE_FLAGS.has(flag)) { + mongoOptions[flag] = options[flag]; + } + } + mongoOptions.hosts = isSRV ? [] : hosts.map(utils_1.HostAddress.fromString); + const urlOptions = new CaseInsensitiveMap(); + if (url.pathname !== '/' && url.pathname !== '') { + const dbName = decodeURIComponent(url.pathname[0] === '/' ? url.pathname.slice(1) : url.pathname); + if (dbName) { + urlOptions.set('dbName', [dbName]); + } + } + if (url.username !== '') { + const auth = { + username: decodeURIComponent(url.username) + }; + if (typeof url.password === 'string') { + auth.password = decodeURIComponent(url.password); + } + urlOptions.set('auth', [auth]); + } + for (const key of url.searchParams.keys()) { + const values = url.searchParams.getAll(key); + const isReadPreferenceTags = /readPreferenceTags/i.test(key); + if (!isReadPreferenceTags && values.length > 1) { + throw new error_1.MongoInvalidArgumentError(`URI option "${key}" cannot appear more than once in the connection string`); + } + if (!isReadPreferenceTags && values.includes('')) { + throw new error_1.MongoAPIError(`URI option "${key}" cannot be specified with no value`); + } + if (!urlOptions.has(key)) { + urlOptions.set(key, values); + } + } + const objectOptions = new CaseInsensitiveMap(Object.entries(options).filter(([, v]) => v != null)); + // Validate options that can only be provided by one of uri or object + if (urlOptions.has('serverApi')) { + throw new error_1.MongoParseError('URI cannot contain `serverApi`, it can only be passed to the client'); + } + const uriMechanismProperties = urlOptions.get('authMechanismProperties'); + if (uriMechanismProperties) { + for (const property of uriMechanismProperties) { + if (/(^|,)ALLOWED_HOSTS:/.test(property)) { + throw new error_1.MongoParseError('Auth mechanism property ALLOWED_HOSTS is not allowed in the connection string.'); + } + } + } + if (objectOptions.has('loadBalanced')) { + throw new error_1.MongoParseError('loadBalanced is only a valid option in the URI'); + } + // All option collection + const allProvidedOptions = new CaseInsensitiveMap(); + const allProvidedKeys = new Set([...urlOptions.keys(), ...objectOptions.keys()]); + for (const key of allProvidedKeys) { + const values = []; + const objectOptionValue = objectOptions.get(key); + if (objectOptionValue != null) { + values.push(objectOptionValue); + } + const urlValues = urlOptions.get(key) ?? []; + values.push(...urlValues); + allProvidedOptions.set(key, values); + } + if (allProvidedOptions.has('tls') || allProvidedOptions.has('ssl')) { + const tlsAndSslOpts = (allProvidedOptions.get('tls') || []) + .concat(allProvidedOptions.get('ssl') || []) + .map(getBoolean.bind(null, 'tls/ssl')); + if (new Set(tlsAndSslOpts).size !== 1) { + throw new error_1.MongoParseError('All values of tls/ssl must be the same.'); + } + } + checkTLSOptions(allProvidedOptions); + const unsupportedOptions = (0, utils_1.setDifference)(allProvidedKeys, Array.from(Object.keys(exports.OPTIONS)).map(s => s.toLowerCase())); + if (unsupportedOptions.size !== 0) { + const optionWord = unsupportedOptions.size > 1 ? 'options' : 'option'; + const isOrAre = unsupportedOptions.size > 1 ? 'are' : 'is'; + throw new error_1.MongoParseError(`${optionWord} ${Array.from(unsupportedOptions).join(', ')} ${isOrAre} not supported`); + } + // Option parsing and setting + for (const [key, descriptor] of Object.entries(exports.OPTIONS)) { + const values = allProvidedOptions.get(key); + if (!values || values.length === 0) { + if (exports.DEFAULT_OPTIONS.has(key)) { + setOption(mongoOptions, key, descriptor, [exports.DEFAULT_OPTIONS.get(key)]); + } + } + else { + const { deprecated } = descriptor; + if (deprecated) { + const deprecatedMsg = typeof deprecated === 'string' ? `: ${deprecated}` : ''; + (0, utils_1.emitWarning)(`${key} is a deprecated option${deprecatedMsg}`); + } + setOption(mongoOptions, key, descriptor, values); + } + } + if (mongoOptions.credentials) { + const isGssapi = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_GSSAPI; + const isX509 = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_X509; + const isAws = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_AWS; + const isOidc = mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_OIDC; + if ((isGssapi || isX509) && + allProvidedOptions.has('authSource') && + mongoOptions.credentials.source !== '$external') { + // If authSource was explicitly given and its incorrect, we error + throw new error_1.MongoParseError(`authMechanism ${mongoOptions.credentials.mechanism} requires an authSource of '$external'`); + } + if (!(isGssapi || isX509 || isAws || isOidc) && + mongoOptions.dbName && + !allProvidedOptions.has('authSource')) { + // inherit the dbName unless GSSAPI or X509, then silently ignore dbName + // and there was no specific authSource given + mongoOptions.credentials = mongo_credentials_1.MongoCredentials.merge(mongoOptions.credentials, { + source: mongoOptions.dbName + }); + } + if (isAws && mongoOptions.credentials.username && !mongoOptions.credentials.password) { + throw new error_1.MongoMissingCredentialsError(`When using ${mongoOptions.credentials.mechanism} password must be set when a username is specified`); + } + mongoOptions.credentials.validate(); + // Check if the only auth related option provided was authSource, if so we can remove credentials + if (mongoOptions.credentials.password === '' && + mongoOptions.credentials.username === '' && + mongoOptions.credentials.mechanism === providers_1.AuthMechanism.MONGODB_DEFAULT && + Object.keys(mongoOptions.credentials.mechanismProperties).length === 0) { + delete mongoOptions.credentials; + } + } + if (!mongoOptions.dbName) { + // dbName default is applied here because of the credential validation above + mongoOptions.dbName = 'test'; + } + validateLoadBalancedOptions(hosts, mongoOptions, isSRV); + if (mongoClient && mongoOptions.autoEncryption) { + encrypter_1.Encrypter.checkForMongoCrypt(); + mongoOptions.encrypter = new encrypter_1.Encrypter(mongoClient, uri, options); + mongoOptions.autoEncrypter = mongoOptions.encrypter.autoEncrypter; + } + // Potential SRV Overrides and SRV connection string validations + mongoOptions.userSpecifiedAuthSource = + objectOptions.has('authSource') || urlOptions.has('authSource'); + mongoOptions.userSpecifiedReplicaSet = + objectOptions.has('replicaSet') || urlOptions.has('replicaSet'); + if (isSRV) { + // SRV Record is resolved upon connecting + mongoOptions.srvHost = hosts[0]; + if (mongoOptions.directConnection) { + throw new error_1.MongoAPIError('SRV URI does not support directConnection'); + } + if (mongoOptions.srvMaxHosts > 0 && typeof mongoOptions.replicaSet === 'string') { + throw new error_1.MongoParseError('Cannot use srvMaxHosts option with replicaSet'); + } + // SRV turns on TLS by default, but users can override and turn it off + const noUserSpecifiedTLS = !objectOptions.has('tls') && !urlOptions.has('tls'); + const noUserSpecifiedSSL = !objectOptions.has('ssl') && !urlOptions.has('ssl'); + if (noUserSpecifiedTLS && noUserSpecifiedSSL) { + mongoOptions.tls = true; + } + } + else { + const userSpecifiedSrvOptions = urlOptions.has('srvMaxHosts') || + objectOptions.has('srvMaxHosts') || + urlOptions.has('srvServiceName') || + objectOptions.has('srvServiceName'); + if (userSpecifiedSrvOptions) { + throw new error_1.MongoParseError('Cannot use srvMaxHosts or srvServiceName with a non-srv connection string'); + } + } + if (mongoOptions.directConnection && mongoOptions.hosts.length !== 1) { + throw new error_1.MongoParseError('directConnection option requires exactly one host'); + } + if (!mongoOptions.proxyHost && + (mongoOptions.proxyPort || mongoOptions.proxyUsername || mongoOptions.proxyPassword)) { + throw new error_1.MongoParseError('Must specify proxyHost if other proxy options are passed'); + } + if ((mongoOptions.proxyUsername && !mongoOptions.proxyPassword) || + (!mongoOptions.proxyUsername && mongoOptions.proxyPassword)) { + throw new error_1.MongoParseError('Can only specify both of proxy username/password or neither'); + } + const proxyOptions = ['proxyHost', 'proxyPort', 'proxyUsername', 'proxyPassword'].map(key => urlOptions.get(key) ?? []); + if (proxyOptions.some(options => options.length > 1)) { + throw new error_1.MongoParseError('Proxy options cannot be specified multiple times in the connection string'); + } + const loggerFeatureFlag = Symbol.for('@@mdb.enableMongoLogger'); + mongoOptions[loggerFeatureFlag] = mongoOptions[loggerFeatureFlag] ?? false; + let loggerEnvOptions = {}; + let loggerClientOptions = {}; + if (mongoOptions[loggerFeatureFlag]) { + loggerEnvOptions = { + MONGODB_LOG_COMMAND: process.env.MONGODB_LOG_COMMAND, + MONGODB_LOG_TOPOLOGY: process.env.MONGODB_LOG_TOPOLOGY, + MONGODB_LOG_SERVER_SELECTION: process.env.MONGODB_LOG_SERVER_SELECTION, + MONGODB_LOG_CONNECTION: process.env.MONGODB_LOG_CONNECTION, + MONGODB_LOG_CLIENT: process.env.MONGODB_LOG_CLIENT, + MONGODB_LOG_ALL: process.env.MONGODB_LOG_ALL, + MONGODB_LOG_MAX_DOCUMENT_LENGTH: process.env.MONGODB_LOG_MAX_DOCUMENT_LENGTH, + MONGODB_LOG_PATH: process.env.MONGODB_LOG_PATH, + ...mongoOptions[Symbol.for('@@mdb.internalLoggerConfig')] + }; + loggerClientOptions = { + mongodbLogPath: mongoOptions.mongodbLogPath, + mongodbLogComponentSeverities: mongoOptions.mongodbLogComponentSeverities, + mongodbLogMaxDocumentLength: mongoOptions.mongodbLogMaxDocumentLength + }; + } + mongoOptions.mongoLoggerOptions = mongo_logger_1.MongoLogger.resolveOptions(loggerEnvOptions, loggerClientOptions); + mongoOptions.metadata = (0, client_metadata_1.makeClientMetadata)(mongoOptions); + // eslint-disable-next-line github/no-then + mongoOptions.extendedMetadata = (0, client_metadata_1.addContainerMetadata)(mongoOptions.metadata).then(undefined, utils_1.squashError); // rejections will be handled later + return mongoOptions; +} +exports.parseOptions = parseOptions; +/** + * #### Throws if LB mode is true: + * - hosts contains more than one host + * - there is a replicaSet name set + * - directConnection is set + * - if srvMaxHosts is used when an srv connection string is passed in + * + * @throws MongoParseError + */ +function validateLoadBalancedOptions(hosts, mongoOptions, isSrv) { + if (mongoOptions.loadBalanced) { + if (hosts.length > 1) { + throw new error_1.MongoParseError(LB_SINGLE_HOST_ERROR); + } + if (mongoOptions.replicaSet) { + throw new error_1.MongoParseError(LB_REPLICA_SET_ERROR); + } + if (mongoOptions.directConnection) { + throw new error_1.MongoParseError(LB_DIRECT_CONNECTION_ERROR); + } + if (isSrv && mongoOptions.srvMaxHosts > 0) { + throw new error_1.MongoParseError('Cannot limit srv hosts with loadBalanced enabled'); + } + } + return; +} +function setOption(mongoOptions, key, descriptor, values) { + const { target, type, transform } = descriptor; + const name = target ?? key; + switch (type) { + case 'boolean': + mongoOptions[name] = getBoolean(name, values[0]); + break; + case 'int': + mongoOptions[name] = getIntFromOptions(name, values[0]); + break; + case 'uint': + mongoOptions[name] = getUIntFromOptions(name, values[0]); + break; + case 'string': + if (values[0] == null) { + break; + } + mongoOptions[name] = String(values[0]); + break; + case 'record': + if (!(0, utils_1.isRecord)(values[0])) { + throw new error_1.MongoParseError(`${name} must be an object`); + } + mongoOptions[name] = values[0]; + break; + case 'any': + mongoOptions[name] = values[0]; + break; + default: { + if (!transform) { + throw new error_1.MongoParseError('Descriptors missing a type must define a transform'); + } + const transformValue = transform({ name, options: mongoOptions, values }); + mongoOptions[name] = transformValue; + break; + } + } +} +exports.OPTIONS = { + appName: { + type: 'string' + }, + auth: { + target: 'credentials', + transform({ name, options, values: [value] }) { + if (!(0, utils_1.isRecord)(value, ['username', 'password'])) { + throw new error_1.MongoParseError(`${name} must be an object with 'username' and 'password' properties`); + } + return mongo_credentials_1.MongoCredentials.merge(options.credentials, { + username: value.username, + password: value.password + }); + } + }, + authMechanism: { + target: 'credentials', + transform({ options, values: [value] }) { + const mechanisms = Object.values(providers_1.AuthMechanism); + const [mechanism] = mechanisms.filter(m => m.match(RegExp(String.raw `\b${value}\b`, 'i'))); + if (!mechanism) { + throw new error_1.MongoParseError(`authMechanism one of ${mechanisms}, got ${value}`); + } + let source = options.credentials?.source; + if (mechanism === providers_1.AuthMechanism.MONGODB_PLAIN || + providers_1.AUTH_MECHS_AUTH_SRC_EXTERNAL.has(mechanism)) { + // some mechanisms have '$external' as the Auth Source + source = '$external'; + } + let password = options.credentials?.password; + if (mechanism === providers_1.AuthMechanism.MONGODB_X509 && password === '') { + password = undefined; + } + return mongo_credentials_1.MongoCredentials.merge(options.credentials, { + mechanism, + source, + password + }); + } + }, + authMechanismProperties: { + target: 'credentials', + transform({ options, values }) { + // We can have a combination of options passed in the URI and options passed + // as an object to the MongoClient. So we must transform the string options + // as well as merge them together with a potentially provided object. + let mechanismProperties = Object.create(null); + for (const optionValue of values) { + if (typeof optionValue === 'string') { + for (const [key, value] of entriesFromString(optionValue)) { + try { + mechanismProperties[key] = getBoolean(key, value); + } + catch { + mechanismProperties[key] = value; + } + } + } + else { + if (!(0, utils_1.isRecord)(optionValue)) { + throw new error_1.MongoParseError('AuthMechanismProperties must be an object'); + } + mechanismProperties = { ...optionValue }; + } + } + return mongo_credentials_1.MongoCredentials.merge(options.credentials, { + mechanismProperties + }); + } + }, + authSource: { + target: 'credentials', + transform({ options, values: [value] }) { + const source = String(value); + return mongo_credentials_1.MongoCredentials.merge(options.credentials, { source }); + } + }, + autoEncryption: { + type: 'record' + }, + bsonRegExp: { + type: 'boolean' + }, + serverApi: { + target: 'serverApi', + transform({ values: [version] }) { + const serverApiToValidate = typeof version === 'string' ? { version } : version; + const versionToValidate = serverApiToValidate && serverApiToValidate.version; + if (!versionToValidate) { + throw new error_1.MongoParseError(`Invalid \`serverApi\` property; must specify a version from the following enum: ["${Object.values(mongo_client_1.ServerApiVersion).join('", "')}"]`); + } + if (!Object.values(mongo_client_1.ServerApiVersion).some(v => v === versionToValidate)) { + throw new error_1.MongoParseError(`Invalid server API version=${versionToValidate}; must be in the following enum: ["${Object.values(mongo_client_1.ServerApiVersion).join('", "')}"]`); + } + return serverApiToValidate; + } + }, + checkKeys: { + type: 'boolean' + }, + compressors: { + default: 'none', + target: 'compressors', + transform({ values }) { + const compressionList = new Set(); + for (const compVal of values) { + const compValArray = typeof compVal === 'string' ? compVal.split(',') : compVal; + if (!Array.isArray(compValArray)) { + throw new error_1.MongoInvalidArgumentError('compressors must be an array or a comma-delimited list of strings'); + } + for (const c of compValArray) { + if (Object.keys(compression_1.Compressor).includes(String(c))) { + compressionList.add(String(c)); + } + else { + throw new error_1.MongoInvalidArgumentError(`${c} is not a valid compression mechanism. Must be one of: ${Object.keys(compression_1.Compressor)}.`); + } + } + } + return [...compressionList]; + } + }, + connectTimeoutMS: { + default: 30000, + type: 'uint' + }, + dbName: { + type: 'string' + }, + directConnection: { + default: false, + type: 'boolean' + }, + driverInfo: { + default: {}, + type: 'record' + }, + enableUtf8Validation: { type: 'boolean', default: true }, + family: { + transform({ name, values: [value] }) { + const transformValue = getIntFromOptions(name, value); + if (transformValue === 4 || transformValue === 6) { + return transformValue; + } + throw new error_1.MongoParseError(`Option 'family' must be 4 or 6 got ${transformValue}.`); + } + }, + fieldsAsRaw: { + type: 'record' + }, + forceServerObjectId: { + default: false, + type: 'boolean' + }, + fsync: { + deprecated: 'Please use journal instead', + target: 'writeConcern', + transform({ name, options, values: [value] }) { + const wc = write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + fsync: getBoolean(name, value) + } + }); + if (!wc) + throw new error_1.MongoParseError(`Unable to make a writeConcern from fsync=${value}`); + return wc; + } + }, + heartbeatFrequencyMS: { + default: 10000, + type: 'uint' + }, + ignoreUndefined: { + type: 'boolean' + }, + j: { + deprecated: 'Please use journal instead', + target: 'writeConcern', + transform({ name, options, values: [value] }) { + const wc = write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + journal: getBoolean(name, value) + } + }); + if (!wc) + throw new error_1.MongoParseError(`Unable to make a writeConcern from journal=${value}`); + return wc; + } + }, + journal: { + target: 'writeConcern', + transform({ name, options, values: [value] }) { + const wc = write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + journal: getBoolean(name, value) + } + }); + if (!wc) + throw new error_1.MongoParseError(`Unable to make a writeConcern from journal=${value}`); + return wc; + } + }, + loadBalanced: { + default: false, + type: 'boolean' + }, + localThresholdMS: { + default: 15, + type: 'uint' + }, + maxConnecting: { + default: 2, + transform({ name, values: [value] }) { + const maxConnecting = getUIntFromOptions(name, value); + if (maxConnecting === 0) { + throw new error_1.MongoInvalidArgumentError('maxConnecting must be > 0 if specified'); + } + return maxConnecting; + } + }, + maxIdleTimeMS: { + default: 0, + type: 'uint' + }, + maxPoolSize: { + default: 100, + type: 'uint' + }, + maxStalenessSeconds: { + target: 'readPreference', + transform({ name, options, values: [value] }) { + const maxStalenessSeconds = getUIntFromOptions(name, value); + if (options.readPreference) { + return read_preference_1.ReadPreference.fromOptions({ + readPreference: { ...options.readPreference, maxStalenessSeconds } + }); + } + else { + return new read_preference_1.ReadPreference('secondary', undefined, { maxStalenessSeconds }); + } + } + }, + minInternalBufferSize: { + type: 'uint' + }, + minPoolSize: { + default: 0, + type: 'uint' + }, + minHeartbeatFrequencyMS: { + default: 500, + type: 'uint' + }, + monitorCommands: { + default: false, + type: 'boolean' + }, + name: { + target: 'driverInfo', + transform({ values: [value], options }) { + return { ...options.driverInfo, name: String(value) }; + } + }, + noDelay: { + default: true, + type: 'boolean' + }, + pkFactory: { + default: utils_1.DEFAULT_PK_FACTORY, + transform({ values: [value] }) { + if ((0, utils_1.isRecord)(value, ['createPk']) && typeof value.createPk === 'function') { + return value; + } + throw new error_1.MongoParseError(`Option pkFactory must be an object with a createPk function, got ${value}`); + } + }, + promoteBuffers: { + type: 'boolean' + }, + promoteLongs: { + type: 'boolean' + }, + promoteValues: { + type: 'boolean' + }, + useBigInt64: { + type: 'boolean' + }, + proxyHost: { + type: 'string' + }, + proxyPassword: { + type: 'string' + }, + proxyPort: { + type: 'uint' + }, + proxyUsername: { + type: 'string' + }, + raw: { + default: false, + type: 'boolean' + }, + readConcern: { + transform({ values: [value], options }) { + if (value instanceof read_concern_1.ReadConcern || (0, utils_1.isRecord)(value, ['level'])) { + return read_concern_1.ReadConcern.fromOptions({ ...options.readConcern, ...value }); + } + throw new error_1.MongoParseError(`ReadConcern must be an object, got ${JSON.stringify(value)}`); + } + }, + readConcernLevel: { + target: 'readConcern', + transform({ values: [level], options }) { + return read_concern_1.ReadConcern.fromOptions({ + ...options.readConcern, + level: level + }); + } + }, + readPreference: { + default: read_preference_1.ReadPreference.primary, + transform({ values: [value], options }) { + if (value instanceof read_preference_1.ReadPreference) { + return read_preference_1.ReadPreference.fromOptions({ + readPreference: { ...options.readPreference, ...value }, + ...value + }); + } + if ((0, utils_1.isRecord)(value, ['mode'])) { + const rp = read_preference_1.ReadPreference.fromOptions({ + readPreference: { ...options.readPreference, ...value }, + ...value + }); + if (rp) + return rp; + else + throw new error_1.MongoParseError(`Cannot make read preference from ${JSON.stringify(value)}`); + } + if (typeof value === 'string') { + const rpOpts = { + hedge: options.readPreference?.hedge, + maxStalenessSeconds: options.readPreference?.maxStalenessSeconds + }; + return new read_preference_1.ReadPreference(value, options.readPreference?.tags, rpOpts); + } + throw new error_1.MongoParseError(`Unknown ReadPreference value: ${value}`); + } + }, + readPreferenceTags: { + target: 'readPreference', + transform({ values, options }) { + const tags = Array.isArray(values[0]) + ? values[0] + : values; + const readPreferenceTags = []; + for (const tag of tags) { + const readPreferenceTag = Object.create(null); + if (typeof tag === 'string') { + for (const [k, v] of entriesFromString(tag)) { + readPreferenceTag[k] = v; + } + } + if ((0, utils_1.isRecord)(tag)) { + for (const [k, v] of Object.entries(tag)) { + readPreferenceTag[k] = v; + } + } + readPreferenceTags.push(readPreferenceTag); + } + return read_preference_1.ReadPreference.fromOptions({ + readPreference: options.readPreference, + readPreferenceTags + }); + } + }, + replicaSet: { + type: 'string' + }, + retryReads: { + default: true, + type: 'boolean' + }, + retryWrites: { + default: true, + type: 'boolean' + }, + serializeFunctions: { + type: 'boolean' + }, + serverMonitoringMode: { + default: 'auto', + transform({ values: [value] }) { + if (!Object.values(monitor_1.ServerMonitoringMode).includes(value)) { + throw new error_1.MongoParseError('serverMonitoringMode must be one of `auto`, `poll`, or `stream`'); + } + return value; + } + }, + serverSelectionTimeoutMS: { + default: 30000, + type: 'uint' + }, + servername: { + type: 'string' + }, + socketTimeoutMS: { + default: 0, + type: 'uint' + }, + srvMaxHosts: { + type: 'uint', + default: 0 + }, + srvServiceName: { + type: 'string', + default: 'mongodb' + }, + ssl: { + target: 'tls', + type: 'boolean' + }, + timeoutMS: { + type: 'uint' + }, + tls: { + type: 'boolean' + }, + tlsAllowInvalidCertificates: { + target: 'rejectUnauthorized', + transform({ name, values: [value] }) { + // allowInvalidCertificates is the inverse of rejectUnauthorized + return !getBoolean(name, value); + } + }, + tlsAllowInvalidHostnames: { + target: 'checkServerIdentity', + transform({ name, values: [value] }) { + // tlsAllowInvalidHostnames means setting the checkServerIdentity function to a noop + return getBoolean(name, value) ? () => undefined : undefined; + } + }, + tlsCAFile: { + type: 'string' + }, + tlsCRLFile: { + type: 'string' + }, + tlsCertificateKeyFile: { + type: 'string' + }, + tlsCertificateKeyFilePassword: { + target: 'passphrase', + type: 'any' + }, + tlsInsecure: { + transform({ name, options, values: [value] }) { + const tlsInsecure = getBoolean(name, value); + if (tlsInsecure) { + options.checkServerIdentity = () => undefined; + options.rejectUnauthorized = false; + } + else { + options.checkServerIdentity = options.tlsAllowInvalidHostnames + ? () => undefined + : undefined; + options.rejectUnauthorized = options.tlsAllowInvalidCertificates ? false : true; + } + return tlsInsecure; + } + }, + w: { + target: 'writeConcern', + transform({ values: [value], options }) { + return write_concern_1.WriteConcern.fromOptions({ writeConcern: { ...options.writeConcern, w: value } }); + } + }, + waitQueueTimeoutMS: { + default: 0, + type: 'uint' + }, + writeConcern: { + target: 'writeConcern', + transform({ values: [value], options }) { + if ((0, utils_1.isRecord)(value) || value instanceof write_concern_1.WriteConcern) { + return write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + ...value + } + }); + } + else if (value === 'majority' || typeof value === 'number') { + return write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + w: value + } + }); + } + throw new error_1.MongoParseError(`Invalid WriteConcern cannot parse: ${JSON.stringify(value)}`); + } + }, + wtimeout: { + deprecated: 'Please use wtimeoutMS instead', + target: 'writeConcern', + transform({ values: [value], options }) { + const wc = write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + wtimeout: getUIntFromOptions('wtimeout', value) + } + }); + if (wc) + return wc; + throw new error_1.MongoParseError(`Cannot make WriteConcern from wtimeout`); + } + }, + wtimeoutMS: { + target: 'writeConcern', + transform({ values: [value], options }) { + const wc = write_concern_1.WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + wtimeoutMS: getUIntFromOptions('wtimeoutMS', value) + } + }); + if (wc) + return wc; + throw new error_1.MongoParseError(`Cannot make WriteConcern from wtimeout`); + } + }, + zlibCompressionLevel: { + default: 0, + type: 'int' + }, + // Custom types for modifying core behavior + connectionType: { type: 'any' }, + srvPoller: { type: 'any' }, + // Accepted NodeJS Options + minDHSize: { type: 'any' }, + pskCallback: { type: 'any' }, + secureContext: { type: 'any' }, + enableTrace: { type: 'any' }, + requestCert: { type: 'any' }, + rejectUnauthorized: { type: 'any' }, + checkServerIdentity: { type: 'any' }, + ALPNProtocols: { type: 'any' }, + SNICallback: { type: 'any' }, + session: { type: 'any' }, + requestOCSP: { type: 'any' }, + localAddress: { type: 'any' }, + localPort: { type: 'any' }, + hints: { type: 'any' }, + lookup: { type: 'any' }, + ca: { type: 'any' }, + cert: { type: 'any' }, + ciphers: { type: 'any' }, + crl: { type: 'any' }, + ecdhCurve: { type: 'any' }, + key: { type: 'any' }, + passphrase: { type: 'any' }, + pfx: { type: 'any' }, + secureProtocol: { type: 'any' }, + index: { type: 'any' }, + // Legacy options from v3 era + useNewUrlParser: { + type: 'boolean', + deprecated: 'useNewUrlParser has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version' + }, + useUnifiedTopology: { + type: 'boolean', + deprecated: 'useUnifiedTopology has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version' + }, + // MongoLogger + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogPath: { + transform({ values: [value] }) { + if (!((typeof value === 'string' && ['stderr', 'stdout'].includes(value)) || + (value && + typeof value === 'object' && + 'write' in value && + typeof value.write === 'function'))) { + throw new error_1.MongoAPIError(`Option 'mongodbLogPath' must be of type 'stderr' | 'stdout' | MongoDBLogWritable`); + } + return value; + } + }, + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogComponentSeverities: { + transform({ values: [value] }) { + if (typeof value !== 'object' || !value) { + throw new error_1.MongoAPIError(`Option 'mongodbLogComponentSeverities' must be a non-null object`); + } + for (const [k, v] of Object.entries(value)) { + if (typeof v !== 'string' || typeof k !== 'string') { + throw new error_1.MongoAPIError(`User input for option 'mongodbLogComponentSeverities' object cannot include a non-string key or value`); + } + if (!Object.values(mongo_logger_1.MongoLoggableComponent).some(val => val === k) && k !== 'default') { + throw new error_1.MongoAPIError(`User input for option 'mongodbLogComponentSeverities' contains invalid key: ${k}`); + } + if (!Object.values(mongo_logger_1.SeverityLevel).some(val => val === v)) { + throw new error_1.MongoAPIError(`Option 'mongodbLogComponentSeverities' does not support ${v} as a value for ${k}`); + } + } + return value; + } + }, + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogMaxDocumentLength: { type: 'uint' } +}; +exports.DEFAULT_OPTIONS = new CaseInsensitiveMap(Object.entries(exports.OPTIONS) + .filter(([, descriptor]) => descriptor.default != null) + .map(([k, d]) => [k, d.default])); +/** + * Set of permitted feature flags + * @internal + */ +exports.FEATURE_FLAGS = new Set([ + Symbol.for('@@mdb.skipPingOnConnect'), + Symbol.for('@@mdb.enableMongoLogger'), + Symbol.for('@@mdb.internalLoggerConfig') +]); +//# sourceMappingURL=connection_string.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/connection_string.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/connection_string.js.map new file mode 100644 index 000000000..cbc6570b9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/connection_string.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/constants.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/constants.js new file mode 100644 index 000000000..4191097aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/constants.js @@ -0,0 +1,162 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.END = exports.CHANGE = exports.INIT = exports.MORE = exports.RESPONSE = exports.SERVER_HEARTBEAT_FAILED = exports.SERVER_HEARTBEAT_SUCCEEDED = exports.SERVER_HEARTBEAT_STARTED = exports.COMMAND_FAILED = exports.COMMAND_SUCCEEDED = exports.COMMAND_STARTED = exports.CLUSTER_TIME_RECEIVED = exports.CONNECTION_CHECKED_IN = exports.CONNECTION_CHECKED_OUT = exports.CONNECTION_CHECK_OUT_FAILED = exports.CONNECTION_CHECK_OUT_STARTED = exports.CONNECTION_CLOSED = exports.CONNECTION_READY = exports.CONNECTION_CREATED = exports.CONNECTION_POOL_READY = exports.CONNECTION_POOL_CLEARED = exports.CONNECTION_POOL_CLOSED = exports.CONNECTION_POOL_CREATED = exports.WAITING_FOR_SUITABLE_SERVER = exports.SERVER_SELECTION_SUCCEEDED = exports.SERVER_SELECTION_FAILED = exports.SERVER_SELECTION_STARTED = exports.TOPOLOGY_DESCRIPTION_CHANGED = exports.TOPOLOGY_CLOSED = exports.TOPOLOGY_OPENING = exports.SERVER_DESCRIPTION_CHANGED = exports.SERVER_CLOSED = exports.SERVER_OPENING = exports.DESCRIPTION_RECEIVED = exports.UNPINNED = exports.PINNED = exports.MESSAGE = exports.ENDED = exports.CLOSED = exports.CONNECT = exports.OPEN = exports.CLOSE = exports.TIMEOUT = exports.ERROR = exports.SYSTEM_JS_COLLECTION = exports.SYSTEM_COMMAND_COLLECTION = exports.SYSTEM_USER_COLLECTION = exports.SYSTEM_PROFILE_COLLECTION = exports.SYSTEM_INDEX_COLLECTION = exports.SYSTEM_NAMESPACE_COLLECTION = void 0; +exports.LEGACY_HELLO_COMMAND_CAMEL_CASE = exports.LEGACY_HELLO_COMMAND = exports.MONGO_CLIENT_EVENTS = exports.LOCAL_SERVER_EVENTS = exports.SERVER_RELAY_EVENTS = exports.APM_EVENTS = exports.TOPOLOGY_EVENTS = exports.CMAP_EVENTS = exports.HEARTBEAT_EVENTS = exports.RESUME_TOKEN_CHANGED = void 0; +exports.SYSTEM_NAMESPACE_COLLECTION = 'system.namespaces'; +exports.SYSTEM_INDEX_COLLECTION = 'system.indexes'; +exports.SYSTEM_PROFILE_COLLECTION = 'system.profile'; +exports.SYSTEM_USER_COLLECTION = 'system.users'; +exports.SYSTEM_COMMAND_COLLECTION = '$cmd'; +exports.SYSTEM_JS_COLLECTION = 'system.js'; +// events +exports.ERROR = 'error'; +exports.TIMEOUT = 'timeout'; +exports.CLOSE = 'close'; +exports.OPEN = 'open'; +exports.CONNECT = 'connect'; +exports.CLOSED = 'closed'; +exports.ENDED = 'ended'; +exports.MESSAGE = 'message'; +exports.PINNED = 'pinned'; +exports.UNPINNED = 'unpinned'; +exports.DESCRIPTION_RECEIVED = 'descriptionReceived'; +/** @internal */ +exports.SERVER_OPENING = 'serverOpening'; +/** @internal */ +exports.SERVER_CLOSED = 'serverClosed'; +/** @internal */ +exports.SERVER_DESCRIPTION_CHANGED = 'serverDescriptionChanged'; +/** @internal */ +exports.TOPOLOGY_OPENING = 'topologyOpening'; +/** @internal */ +exports.TOPOLOGY_CLOSED = 'topologyClosed'; +/** @internal */ +exports.TOPOLOGY_DESCRIPTION_CHANGED = 'topologyDescriptionChanged'; +/** @internal */ +exports.SERVER_SELECTION_STARTED = 'serverSelectionStarted'; +/** @internal */ +exports.SERVER_SELECTION_FAILED = 'serverSelectionFailed'; +/** @internal */ +exports.SERVER_SELECTION_SUCCEEDED = 'serverSelectionSucceeded'; +/** @internal */ +exports.WAITING_FOR_SUITABLE_SERVER = 'waitingForSuitableServer'; +/** @internal */ +exports.CONNECTION_POOL_CREATED = 'connectionPoolCreated'; +/** @internal */ +exports.CONNECTION_POOL_CLOSED = 'connectionPoolClosed'; +/** @internal */ +exports.CONNECTION_POOL_CLEARED = 'connectionPoolCleared'; +/** @internal */ +exports.CONNECTION_POOL_READY = 'connectionPoolReady'; +/** @internal */ +exports.CONNECTION_CREATED = 'connectionCreated'; +/** @internal */ +exports.CONNECTION_READY = 'connectionReady'; +/** @internal */ +exports.CONNECTION_CLOSED = 'connectionClosed'; +/** @internal */ +exports.CONNECTION_CHECK_OUT_STARTED = 'connectionCheckOutStarted'; +/** @internal */ +exports.CONNECTION_CHECK_OUT_FAILED = 'connectionCheckOutFailed'; +/** @internal */ +exports.CONNECTION_CHECKED_OUT = 'connectionCheckedOut'; +/** @internal */ +exports.CONNECTION_CHECKED_IN = 'connectionCheckedIn'; +exports.CLUSTER_TIME_RECEIVED = 'clusterTimeReceived'; +/** @internal */ +exports.COMMAND_STARTED = 'commandStarted'; +/** @internal */ +exports.COMMAND_SUCCEEDED = 'commandSucceeded'; +/** @internal */ +exports.COMMAND_FAILED = 'commandFailed'; +/** @internal */ +exports.SERVER_HEARTBEAT_STARTED = 'serverHeartbeatStarted'; +/** @internal */ +exports.SERVER_HEARTBEAT_SUCCEEDED = 'serverHeartbeatSucceeded'; +/** @internal */ +exports.SERVER_HEARTBEAT_FAILED = 'serverHeartbeatFailed'; +exports.RESPONSE = 'response'; +exports.MORE = 'more'; +exports.INIT = 'init'; +exports.CHANGE = 'change'; +exports.END = 'end'; +exports.RESUME_TOKEN_CHANGED = 'resumeTokenChanged'; +/** @public */ +exports.HEARTBEAT_EVENTS = Object.freeze([ + exports.SERVER_HEARTBEAT_STARTED, + exports.SERVER_HEARTBEAT_SUCCEEDED, + exports.SERVER_HEARTBEAT_FAILED +]); +/** @public */ +exports.CMAP_EVENTS = Object.freeze([ + exports.CONNECTION_POOL_CREATED, + exports.CONNECTION_POOL_READY, + exports.CONNECTION_POOL_CLEARED, + exports.CONNECTION_POOL_CLOSED, + exports.CONNECTION_CREATED, + exports.CONNECTION_READY, + exports.CONNECTION_CLOSED, + exports.CONNECTION_CHECK_OUT_STARTED, + exports.CONNECTION_CHECK_OUT_FAILED, + exports.CONNECTION_CHECKED_OUT, + exports.CONNECTION_CHECKED_IN +]); +/** @public */ +exports.TOPOLOGY_EVENTS = Object.freeze([ + exports.SERVER_OPENING, + exports.SERVER_CLOSED, + exports.SERVER_DESCRIPTION_CHANGED, + exports.TOPOLOGY_OPENING, + exports.TOPOLOGY_CLOSED, + exports.TOPOLOGY_DESCRIPTION_CHANGED, + exports.ERROR, + exports.TIMEOUT, + exports.CLOSE +]); +/** @public */ +exports.APM_EVENTS = Object.freeze([ + exports.COMMAND_STARTED, + exports.COMMAND_SUCCEEDED, + exports.COMMAND_FAILED +]); +/** + * All events that we relay to the `Topology` + * @internal + */ +exports.SERVER_RELAY_EVENTS = Object.freeze([ + exports.SERVER_HEARTBEAT_STARTED, + exports.SERVER_HEARTBEAT_SUCCEEDED, + exports.SERVER_HEARTBEAT_FAILED, + exports.COMMAND_STARTED, + exports.COMMAND_SUCCEEDED, + exports.COMMAND_FAILED, + ...exports.CMAP_EVENTS +]); +/** + * All events we listen to from `Server` instances, but do not forward to the client + * @internal + */ +exports.LOCAL_SERVER_EVENTS = Object.freeze([ + exports.CONNECT, + exports.DESCRIPTION_RECEIVED, + exports.CLOSED, + exports.ENDED +]); +/** @public */ +exports.MONGO_CLIENT_EVENTS = Object.freeze([ + ...exports.CMAP_EVENTS, + ...exports.APM_EVENTS, + ...exports.TOPOLOGY_EVENTS, + ...exports.HEARTBEAT_EVENTS +]); +/** + * @internal + * The legacy hello command that was deprecated in MongoDB 5.0. + */ +exports.LEGACY_HELLO_COMMAND = 'ismaster'; +/** + * @internal + * The legacy hello command that was deprecated in MongoDB 5.0. + */ +exports.LEGACY_HELLO_COMMAND_CAMEL_CASE = 'isMaster'; +//# sourceMappingURL=constants.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/constants.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/constants.js.map new file mode 100644 index 000000000..aae3eb050 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/constants.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/abstract_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/abstract_cursor.js new file mode 100644 index 000000000..60230f8ee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/abstract_cursor.js @@ -0,0 +1,738 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.assertUninitialized = exports.AbstractCursor = exports.CURSOR_FLAGS = void 0; +const stream_1 = require("stream"); +const bson_1 = require("../bson"); +const responses_1 = require("../cmap/wire_protocol/responses"); +const error_1 = require("../error"); +const mongo_types_1 = require("../mongo_types"); +const execute_operation_1 = require("../operations/execute_operation"); +const get_more_1 = require("../operations/get_more"); +const kill_cursors_1 = require("../operations/kill_cursors"); +const read_concern_1 = require("../read_concern"); +const read_preference_1 = require("../read_preference"); +const sessions_1 = require("../sessions"); +const utils_1 = require("../utils"); +/** @internal */ +const kId = Symbol('id'); +/** @internal */ +const kDocuments = Symbol('documents'); +/** @internal */ +const kServer = Symbol('server'); +/** @internal */ +const kNamespace = Symbol('namespace'); +/** @internal */ +const kClient = Symbol('client'); +/** @internal */ +const kSession = Symbol('session'); +/** @internal */ +const kOptions = Symbol('options'); +/** @internal */ +const kTransform = Symbol('transform'); +/** @internal */ +const kInitialized = Symbol('initialized'); +/** @internal */ +const kClosed = Symbol('closed'); +/** @internal */ +const kKilled = Symbol('killed'); +/** @internal */ +const kInit = Symbol('kInit'); +/** @public */ +exports.CURSOR_FLAGS = [ + 'tailable', + 'oplogReplay', + 'noCursorTimeout', + 'awaitData', + 'exhaust', + 'partial' +]; +/** @public */ +class AbstractCursor extends mongo_types_1.TypedEventEmitter { + /** @internal */ + constructor(client, namespace, options = {}) { + super(); + if (!client.s.isMongoClient) { + throw new error_1.MongoRuntimeError('Cursor must be constructed with MongoClient'); + } + this[kClient] = client; + this[kNamespace] = namespace; + this[kId] = null; + this[kDocuments] = new utils_1.List(); + this[kInitialized] = false; + this[kClosed] = false; + this[kKilled] = false; + this[kOptions] = { + readPreference: options.readPreference && options.readPreference instanceof read_preference_1.ReadPreference + ? options.readPreference + : read_preference_1.ReadPreference.primary, + ...(0, bson_1.pluckBSONSerializeOptions)(options) + }; + this[kOptions].timeoutMS = options.timeoutMS; + const readConcern = read_concern_1.ReadConcern.fromOptions(options); + if (readConcern) { + this[kOptions].readConcern = readConcern; + } + if (typeof options.batchSize === 'number') { + this[kOptions].batchSize = options.batchSize; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + this[kOptions].comment = options.comment; + } + if (typeof options.maxTimeMS === 'number') { + this[kOptions].maxTimeMS = options.maxTimeMS; + } + if (typeof options.maxAwaitTimeMS === 'number') { + this[kOptions].maxAwaitTimeMS = options.maxAwaitTimeMS; + } + if (options.session instanceof sessions_1.ClientSession) { + this[kSession] = options.session; + } + else { + this[kSession] = this[kClient].startSession({ owner: this, explicit: false }); + } + } + get id() { + return this[kId] ?? undefined; + } + /** @internal */ + get isDead() { + return (this[kId]?.isZero() ?? false) || this[kClosed] || this[kKilled]; + } + /** @internal */ + get client() { + return this[kClient]; + } + /** @internal */ + get server() { + return this[kServer]; + } + get namespace() { + return this[kNamespace]; + } + get readPreference() { + return this[kOptions].readPreference; + } + get readConcern() { + return this[kOptions].readConcern; + } + /** @internal */ + get session() { + return this[kSession]; + } + set session(clientSession) { + this[kSession] = clientSession; + } + /** @internal */ + get cursorOptions() { + return this[kOptions]; + } + get closed() { + return this[kClosed]; + } + get killed() { + return this[kKilled]; + } + get loadBalanced() { + return !!this[kClient].topology?.loadBalanced; + } + /** Returns current buffered documents length */ + bufferedCount() { + return this[kDocuments].length; + } + /** Returns current buffered documents */ + readBufferedDocuments(number) { + const bufferedDocs = []; + const documentsToRead = Math.min(number ?? this[kDocuments].length, this[kDocuments].length); + for (let count = 0; count < documentsToRead; count++) { + const document = this[kDocuments].shift(this[kOptions]); + if (document != null) { + bufferedDocs.push(document); + } + } + return bufferedDocs; + } + async *[Symbol.asyncIterator]() { + if (this.closed) { + return; + } + try { + while (true) { + const document = await this.next(); + // Intentional strict null check, because users can map cursors to falsey values. + // We allow mapping to all values except for null. + // eslint-disable-next-line no-restricted-syntax + if (document === null) { + if (!this.closed) { + const message = 'Cursor returned a `null` document, but the cursor is not exhausted. Mapping documents to `null` is not supported in the cursor transform.'; + try { + await cleanupCursor(this, { needsToEmitClosed: true }); + } + catch (error) { + (0, utils_1.squashError)(error); + } + throw new error_1.MongoAPIError(message); + } + break; + } + yield document; + if (this[kId] === bson_1.Long.ZERO) { + // Cursor exhausted + break; + } + } + } + finally { + // Only close the cursor if it has not already been closed. This finally clause handles + // the case when a user would break out of a for await of loop early. + if (!this.closed) { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + } + } + } + stream(options) { + if (options?.transform) { + const transform = options.transform; + const readable = new ReadableCursorStream(this); + const transformedStream = readable.pipe(new stream_1.Transform({ + objectMode: true, + highWaterMark: 1, + transform(chunk, _, callback) { + try { + const transformed = transform(chunk); + callback(undefined, transformed); + } + catch (err) { + callback(err); + } + } + })); + // Bubble errors to transformed stream, because otherwise no way + // to handle this error. + readable.on('error', err => transformedStream.emit('error', err)); + return transformedStream; + } + return new ReadableCursorStream(this); + } + async hasNext() { + if (this[kId] === bson_1.Long.ZERO) { + return false; + } + if (this[kDocuments].length !== 0) { + return true; + } + return await next(this, { blocking: true, transform: false, shift: false }); + } + /** Get the next available document from the cursor, returns null if no more documents are available. */ + async next() { + if (this[kId] === bson_1.Long.ZERO) { + throw new error_1.MongoCursorExhaustedError(); + } + return await next(this, { blocking: true, transform: true, shift: true }); + } + /** + * Try to get the next available document from the cursor or `null` if an empty batch is returned + */ + async tryNext() { + if (this[kId] === bson_1.Long.ZERO) { + throw new error_1.MongoCursorExhaustedError(); + } + return await next(this, { blocking: false, transform: true, shift: true }); + } + /** + * Iterates over all the documents for this cursor using the iterator, callback pattern. + * + * If the iterator returns `false`, iteration will stop. + * + * @param iterator - The iteration callback. + * @deprecated - Will be removed in a future release. Use for await...of instead. + */ + async forEach(iterator) { + if (typeof iterator !== 'function') { + throw new error_1.MongoInvalidArgumentError('Argument "iterator" must be a function'); + } + for await (const document of this) { + const result = iterator(document); + if (result === false) { + break; + } + } + } + async close() { + const needsToEmitClosed = !this[kClosed]; + this[kClosed] = true; + await cleanupCursor(this, { needsToEmitClosed }); + } + /** + * Returns an array of documents. The caller is responsible for making sure that there + * is enough memory to store the results. Note that the array only contains partial + * results when this cursor had been previously accessed. In that case, + * cursor.rewind() can be used to reset the cursor. + */ + async toArray() { + const array = []; + for await (const document of this) { + array.push(document); + } + return array; + } + /** + * Add a cursor flag to the cursor + * + * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -. + * @param value - The flag boolean value. + */ + addCursorFlag(flag, value) { + assertUninitialized(this); + if (!exports.CURSOR_FLAGS.includes(flag)) { + throw new error_1.MongoInvalidArgumentError(`Flag ${flag} is not one of ${exports.CURSOR_FLAGS}`); + } + if (typeof value !== 'boolean') { + throw new error_1.MongoInvalidArgumentError(`Flag ${flag} must be a boolean value`); + } + this[kOptions][flag] = value; + return this; + } + /** + * Map all documents using the provided function + * If there is a transform set on the cursor, that will be called first and the result passed to + * this function's transform. + * + * @remarks + * + * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping + * function that maps values to `null` will result in the cursor closing itself before it has finished iterating + * all documents. This will **not** result in a memory leak, just surprising behavior. For example: + * + * ```typescript + * const cursor = collection.find({}); + * cursor.map(() => null); + * + * const documents = await cursor.toArray(); + * // documents is always [], regardless of how many documents are in the collection. + * ``` + * + * Other falsey values are allowed: + * + * ```typescript + * const cursor = collection.find({}); + * cursor.map(() => ''); + * + * const documents = await cursor.toArray(); + * // documents is now an array of empty strings + * ``` + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling map, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: FindCursor = coll.find(); + * const mappedCursor: FindCursor = cursor.map(doc => Object.keys(doc).length); + * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[] + * ``` + * @param transform - The mapping transformation method. + */ + map(transform) { + assertUninitialized(this); + const oldTransform = this[kTransform]; // TODO(NODE-3283): Improve transform typing + if (oldTransform) { + this[kTransform] = doc => { + return transform(oldTransform(doc)); + }; + } + else { + this[kTransform] = transform; + } + return this; + } + /** + * Set the ReadPreference for the cursor. + * + * @param readPreference - The new read preference for the cursor. + */ + withReadPreference(readPreference) { + assertUninitialized(this); + if (readPreference instanceof read_preference_1.ReadPreference) { + this[kOptions].readPreference = readPreference; + } + else if (typeof readPreference === 'string') { + this[kOptions].readPreference = read_preference_1.ReadPreference.fromString(readPreference); + } + else { + throw new error_1.MongoInvalidArgumentError(`Invalid read preference: ${readPreference}`); + } + return this; + } + /** + * Set the ReadPreference for the cursor. + * + * @param readPreference - The new read preference for the cursor. + */ + withReadConcern(readConcern) { + assertUninitialized(this); + const resolvedReadConcern = read_concern_1.ReadConcern.fromOptions({ readConcern }); + if (resolvedReadConcern) { + this[kOptions].readConcern = resolvedReadConcern; + } + return this; + } + /** + * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher) + * + * @param value - Number of milliseconds to wait before aborting the query. + */ + maxTimeMS(value) { + assertUninitialized(this); + if (typeof value !== 'number') { + throw new error_1.MongoInvalidArgumentError('Argument for maxTimeMS must be a number'); + } + this[kOptions].maxTimeMS = value; + return this; + } + /** + * Set the batch size for the cursor. + * + * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}. + */ + batchSize(value) { + assertUninitialized(this); + if (this[kOptions].tailable) { + throw new error_1.MongoTailableCursorError('Tailable cursor does not support batchSize'); + } + if (typeof value !== 'number') { + throw new error_1.MongoInvalidArgumentError('Operation "batchSize" requires an integer'); + } + this[kOptions].batchSize = value; + return this; + } + /** + * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will + * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even + * if the resultant data has already been retrieved by this cursor. + */ + rewind() { + if (!this[kInitialized]) { + return; + } + this[kId] = null; + this[kDocuments].clear(); + this[kClosed] = false; + this[kKilled] = false; + this[kInitialized] = false; + const session = this[kSession]; + if (session) { + // We only want to end this session if we created it, and it hasn't ended yet + if (session.explicit === false) { + if (!session.hasEnded) { + // eslint-disable-next-line github/no-then + session.endSession().then(undefined, utils_1.squashError); + } + this[kSession] = this.client.startSession({ owner: this, explicit: false }); + } + } + } + /** @internal */ + async getMore(batchSize, useCursorResponse = false) { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + const getMoreOperation = new get_more_1.GetMoreOperation(this[kNamespace], this[kId], this[kServer], { + ...this[kOptions], + session: this[kSession], + batchSize, + useCursorResponse + }); + return await (0, execute_operation_1.executeOperation)(this[kClient], getMoreOperation); + } + /** + * @internal + * + * This function is exposed for the unified test runner's createChangeStream + * operation. We cannot refactor to use the abstract _initialize method without + * a significant refactor. + */ + async [kInit]() { + try { + const state = await this._initialize(this[kSession]); + const response = state.response; + this[kServer] = state.server; + if (responses_1.CursorResponse.is(response)) { + this[kId] = response.id; + if (response.ns) + this[kNamespace] = response.ns; + this[kDocuments] = response; + } + else if (response.cursor) { + // TODO(NODE-2674): Preserve int64 sent from MongoDB + this[kId] = + typeof response.cursor.id === 'number' + ? bson_1.Long.fromNumber(response.cursor.id) + : typeof response.cursor.id === 'bigint' + ? bson_1.Long.fromBigInt(response.cursor.id) + : response.cursor.id; + if (response.cursor.ns) { + this[kNamespace] = (0, utils_1.ns)(response.cursor.ns); + } + this[kDocuments].pushMany(response.cursor.firstBatch); + } + // When server responses return without a cursor document, we close this cursor + // and return the raw server response. This is often the case for explain commands + // for example + if (this[kId] == null) { + this[kId] = bson_1.Long.ZERO; + // TODO(NODE-3286): ExecutionResult needs to accept a generic parameter + this[kDocuments].push(state.response); + } + // the cursor is now initialized, even if it is dead + this[kInitialized] = true; + } + catch (error) { + // the cursor is now initialized, even if an error occurred + this[kInitialized] = true; + await cleanupCursor(this, { error }); + throw error; + } + if (this.isDead) { + await cleanupCursor(this, undefined); + } + return; + } +} +/** @event */ +AbstractCursor.CLOSE = 'close'; +exports.AbstractCursor = AbstractCursor; +async function next(cursor, { blocking, transform, shift }) { + if (cursor.closed) { + if (!shift) + return false; + return null; + } + do { + if (cursor[kId] == null) { + // All cursors must operate within a session, one must be made implicitly if not explicitly provided + await cursor[kInit](); + } + if (cursor[kDocuments].length !== 0) { + if (!shift) + return true; + const doc = cursor[kDocuments].shift(cursor[kOptions]); + if (doc != null && transform && cursor[kTransform]) { + try { + return cursor[kTransform](doc); + } + catch (error) { + try { + await cleanupCursor(cursor, { error, needsToEmitClosed: true }); + } + catch (error) { + // `cleanupCursor` should never throw, squash and throw the original error + (0, utils_1.squashError)(error); + } + throw error; + } + } + return doc; + } + if (cursor.isDead) { + // if the cursor is dead, we clean it up + // cleanupCursor should never throw, but if it does it indicates a bug in the driver + // and we should surface the error + await cleanupCursor(cursor, {}); + if (!shift) + return false; + return null; + } + // otherwise need to call getMore + const batchSize = cursor[kOptions].batchSize || 1000; + try { + const response = await cursor.getMore(batchSize); + if (responses_1.CursorResponse.is(response)) { + cursor[kId] = response.id; + cursor[kDocuments] = response; + } + else if (response) { + const cursorId = typeof response.cursor.id === 'number' + ? bson_1.Long.fromNumber(response.cursor.id) + : typeof response.cursor.id === 'bigint' + ? bson_1.Long.fromBigInt(response.cursor.id) + : response.cursor.id; + cursor[kDocuments].pushMany(response.cursor.nextBatch); + cursor[kId] = cursorId; + } + } + catch (error) { + try { + await cleanupCursor(cursor, { error, needsToEmitClosed: true }); + } + catch (error) { + // `cleanupCursor` should never throw, squash and throw the original error + (0, utils_1.squashError)(error); + } + throw error; + } + if (cursor.isDead) { + // If we successfully received a response from a cursor BUT the cursor indicates that it is exhausted, + // we intentionally clean up the cursor to release its session back into the pool before the cursor + // is iterated. This prevents a cursor that is exhausted on the server from holding + // onto a session indefinitely until the AbstractCursor is iterated. + // + // cleanupCursorAsync should never throw, but if it does it indicates a bug in the driver + // and we should surface the error + await cleanupCursor(cursor, {}); + } + if (cursor[kDocuments].length === 0 && blocking === false) { + if (!shift) + return false; + return null; + } + } while (!cursor.isDead || cursor[kDocuments].length !== 0); + if (!shift) + return false; + return null; +} +async function cleanupCursor(cursor, options) { + const cursorId = cursor[kId]; + const cursorNs = cursor[kNamespace]; + const server = cursor[kServer]; + const session = cursor[kSession]; + const error = options?.error; + // Cursors only emit closed events once the client-side cursor has been exhausted fully or there + // was an error. Notably, when the server returns a cursor id of 0 and a non-empty batch, we + // cleanup the cursor but don't emit a `close` event. + const needsToEmitClosed = options?.needsToEmitClosed ?? cursor[kDocuments].length === 0; + if (error) { + if (cursor.loadBalanced && error instanceof error_1.MongoNetworkError) { + return await completeCleanup(); + } + } + if (cursorId == null || server == null || cursorId.isZero() || cursorNs == null) { + if (needsToEmitClosed) { + cursor[kClosed] = true; + cursor[kId] = bson_1.Long.ZERO; + cursor.emit(AbstractCursor.CLOSE); + } + if (session) { + if (session.owner === cursor) { + await session.endSession({ error }); + return; + } + if (!session.inTransaction()) { + (0, sessions_1.maybeClearPinnedConnection)(session, { error }); + } + } + return; + } + async function completeCleanup() { + if (session) { + if (session.owner === cursor) { + try { + await session.endSession({ error }); + } + finally { + cursor.emit(AbstractCursor.CLOSE); + } + return; + } + if (!session.inTransaction()) { + (0, sessions_1.maybeClearPinnedConnection)(session, { error }); + } + } + cursor.emit(AbstractCursor.CLOSE); + return; + } + cursor[kKilled] = true; + if (session.hasEnded) { + return await completeCleanup(); + } + try { + await (0, execute_operation_1.executeOperation)(cursor[kClient], new kill_cursors_1.KillCursorsOperation(cursorId, cursorNs, server, { session })); + } + catch (error) { + (0, utils_1.squashError)(error); + } + finally { + await completeCleanup(); + } +} +/** @internal */ +function assertUninitialized(cursor) { + if (cursor[kInitialized]) { + throw new error_1.MongoCursorInUseError(); + } +} +exports.assertUninitialized = assertUninitialized; +class ReadableCursorStream extends stream_1.Readable { + constructor(cursor) { + super({ + objectMode: true, + autoDestroy: false, + highWaterMark: 1 + }); + this._readInProgress = false; + this._cursor = cursor; + } + // eslint-disable-next-line @typescript-eslint/no-unused-vars + _read(size) { + if (!this._readInProgress) { + this._readInProgress = true; + this._readNext(); + } + } + _destroy(error, callback) { + // eslint-disable-next-line github/no-then + this._cursor.close().then(() => callback(error), closeError => callback(closeError)); + } + _readNext() { + // eslint-disable-next-line github/no-then + next(this._cursor, { blocking: true, transform: true, shift: true }).then(result => { + if (result == null) { + this.push(null); + } + else if (this.destroyed) { + // eslint-disable-next-line github/no-then + this._cursor.close().then(undefined, utils_1.squashError); + } + else { + if (this.push(result)) { + return this._readNext(); + } + this._readInProgress = false; + } + }, err => { + // NOTE: This is questionable, but we have a test backing the behavior. It seems the + // desired behavior is that a stream ends cleanly when a user explicitly closes + // a client during iteration. Alternatively, we could do the "right" thing and + // propagate the error message by removing this special case. + if (err.message.match(/server is closed/)) { + // eslint-disable-next-line github/no-then + this._cursor.close().then(undefined, utils_1.squashError); + return this.push(null); + } + // NOTE: This is also perhaps questionable. The rationale here is that these errors tend + // to be "operation was interrupted", where a cursor has been closed but there is an + // active getMore in-flight. This used to check if the cursor was killed but once + // that changed to happen in cleanup legitimate errors would not destroy the + // stream. There are change streams test specifically test these cases. + if (err.message.match(/operation was interrupted/)) { + return this.push(null); + } + // NOTE: The two above checks on the message of the error will cause a null to be pushed + // to the stream, thus closing the stream before the destroy call happens. This means + // that either of those error messages on a change stream will not get a proper + // 'error' event to be emitted (the error passed to destroy). Change stream resumability + // relies on that error event to be emitted to create its new cursor and thus was not + // working on 4.4 servers because the error emitted on failover was "interrupted at + // shutdown" while on 5.0+ it is "The server is in quiesce mode and will shut down". + // See NODE-4475. + return this.destroy(err); + }); + } +} +//# sourceMappingURL=abstract_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/abstract_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/abstract_cursor.js.map new file mode 100644 index 000000000..00b8b5690 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/abstract_cursor.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/aggregation_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/aggregation_cursor.js new file mode 100644 index 000000000..e34a3d089 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/aggregation_cursor.js @@ -0,0 +1,148 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AggregationCursor = void 0; +const aggregate_1 = require("../operations/aggregate"); +const execute_operation_1 = require("../operations/execute_operation"); +const utils_1 = require("../utils"); +const abstract_cursor_1 = require("./abstract_cursor"); +/** @internal */ +const kPipeline = Symbol('pipeline'); +/** @internal */ +const kOptions = Symbol('options'); +/** + * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB + * allowing for iteration over the results returned from the underlying query. It supports + * one by one document iteration, conversion to an array or can be iterated as a Node 4.X + * or higher stream + * @public + */ +class AggregationCursor extends abstract_cursor_1.AbstractCursor { + /** @internal */ + constructor(client, namespace, pipeline = [], options = {}) { + super(client, namespace, options); + this[kPipeline] = pipeline; + this[kOptions] = options; + } + get pipeline() { + return this[kPipeline]; + } + clone() { + const clonedOptions = (0, utils_1.mergeOptions)({}, this[kOptions]); + delete clonedOptions.session; + return new AggregationCursor(this.client, this.namespace, this[kPipeline], { + ...clonedOptions + }); + } + map(transform) { + return super.map(transform); + } + /** @internal */ + async _initialize(session) { + const aggregateOperation = new aggregate_1.AggregateOperation(this.namespace, this[kPipeline], { + ...this[kOptions], + ...this.cursorOptions, + session + }); + const response = await (0, execute_operation_1.executeOperation)(this.client, aggregateOperation); + // TODO: NODE-2882 + return { server: aggregateOperation.server, session, response }; + } + /** Execute the explain for the cursor */ + async explain(verbosity) { + return await (0, execute_operation_1.executeOperation)(this.client, new aggregate_1.AggregateOperation(this.namespace, this[kPipeline], { + ...this[kOptions], + ...this.cursorOptions, + explain: verbosity ?? true + })); + } + addStage(stage) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kPipeline].push(stage); + return this; + } + group($group) { + return this.addStage({ $group }); + } + /** Add a limit stage to the aggregation pipeline */ + limit($limit) { + return this.addStage({ $limit }); + } + /** Add a match stage to the aggregation pipeline */ + match($match) { + return this.addStage({ $match }); + } + /** Add an out stage to the aggregation pipeline */ + out($out) { + return this.addStage({ $out }); + } + /** + * Add a project stage to the aggregation pipeline + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type. + * You should specify a parameterized type to have assertions on your final results. + * + * @example + * ```typescript + * // Best way + * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true }); + * // Flexible way + * const docs: AggregationCursor = cursor.project({ _id: 0, a: true }); + * ``` + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling project, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]); + * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true }); + * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray(); + * + * // or always use chaining and save the final cursor + * + * const cursor = coll.aggregate().project<{ a: string }>({ + * _id: 0, + * a: { $convert: { input: '$a', to: 'string' } + * }}); + * ``` + */ + project($project) { + return this.addStage({ $project }); + } + /** Add a lookup stage to the aggregation pipeline */ + lookup($lookup) { + return this.addStage({ $lookup }); + } + /** Add a redact stage to the aggregation pipeline */ + redact($redact) { + return this.addStage({ $redact }); + } + /** Add a skip stage to the aggregation pipeline */ + skip($skip) { + return this.addStage({ $skip }); + } + /** Add a sort stage to the aggregation pipeline */ + sort($sort) { + return this.addStage({ $sort }); + } + /** Add a unwind stage to the aggregation pipeline */ + unwind($unwind) { + return this.addStage({ $unwind }); + } + /** Add a geoNear stage to the aggregation pipeline */ + geoNear($geoNear) { + return this.addStage({ $geoNear }); + } +} +exports.AggregationCursor = AggregationCursor; +//# sourceMappingURL=aggregation_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/aggregation_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/aggregation_cursor.js.map new file mode 100644 index 000000000..d0ea0688a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/aggregation_cursor.js.map @@ -0,0 +1 @@ +{"version":3,"file":"aggregation_cursor.js","sourceRoot":"","sources":["../../src/cursor/aggregation_cursor.ts"],"names":[],"mappings":";;;AAGA,uDAAoF;AACpF,uEAAyF;AAIzF,oCAAwC;AAExC,uDAAwE;AAKxE,gBAAgB;AAChB,MAAM,SAAS,GAAG,MAAM,CAAC,UAAU,CAAC,CAAC;AACrC,gBAAgB;AAChB,MAAM,QAAQ,GAAG,MAAM,CAAC,SAAS,CAAC,CAAC;AAEnC;;;;;;GAMG;AACH,MAAa,iBAAiC,SAAQ,gCAAuB;IAM3E,gBAAgB;IAChB,YACE,MAAmB,EACnB,SAA2B,EAC3B,WAAuB,EAAE,EACzB,UAA4B,EAAE;QAE9B,KAAK,CAAC,MAAM,EAAE,SAAS,EAAE,OAAO,CAAC,CAAC;QAElC,IAAI,CAAC,SAAS,CAAC,GAAG,QAAQ,CAAC;QAC3B,IAAI,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC;IAC3B,CAAC;IAED,IAAI,QAAQ;QACV,OAAO,IAAI,CAAC,SAAS,CAAC,CAAC;IACzB,CAAC;IAED,KAAK;QACH,MAAM,aAAa,GAAG,IAAA,oBAAY,EAAC,EAAE,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC;QACvD,OAAO,aAAa,CAAC,OAAO,CAAC;QAC7B,OAAO,IAAI,iBAAiB,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,SAAS,CAAC,EAAE;YACzE,GAAG,aAAa;SACjB,CAAC,CAAC;IACL,CAAC;IAEQ,GAAG,CAAI,SAA8B;QAC5C,OAAO,KAAK,CAAC,GAAG,CAAC,SAAS,CAAyB,CAAC;IACtD,CAAC;IAED,gBAAgB;IAChB,KAAK,CAAC,WAAW,CAAC,OAAsB;QACtC,MAAM,kBAAkB,GAAG,IAAI,8BAAkB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,SAAS,CAAC,EAAE;YACjF,GAAG,IAAI,CAAC,QAAQ,CAAC;YACjB,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO;SACR,CAAC,CAAC;QAEH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,EAAE,kBAAkB,CAAC,CAAC;QAEzE,kBAAkB;QAClB,OAAO,EAAE,MAAM,EAAE,kBAAkB,CAAC,MAAM,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC;IAClE,CAAC;IAED,yCAAyC;IACzC,KAAK,CAAC,OAAO,CAAC,SAAgC;QAC5C,OAAO,MAAM,IAAA,oCAAgB,EAC3B,IAAI,CAAC,MAAM,EACX,IAAI,8BAAkB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,SAAS,CAAC,EAAE;YACtD,GAAG,IAAI,CAAC,QAAQ,CAAC;YACjB,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO,EAAE,SAAS,IAAI,IAAI;SAC3B,CAAC,CACH,CAAC;IACJ,CAAC;IAgBD,QAAQ,CAAe,KAAe;QACpC,IAAA,qCAAmB,EAAC,IAAI,CAAC,CAAC;QAC1B,IAAI,CAAC,SAAS,CAAC,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC5B,OAAO,IAAuC,CAAC;IACjD,CAAC;IAID,KAAK,CAAC,MAAgB;QACpB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC,CAAC;IACnC,CAAC;IAED,oDAAoD;IACpD,KAAK,CAAC,MAAc;QAClB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC,CAAC;IACnC,CAAC;IAED,oDAAoD;IACpD,KAAK,CAAC,MAAgB;QACpB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC,CAAC;IACnC,CAAC;IAED,mDAAmD;IACnD,GAAG,CAAC,IAA2C;QAC7C,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,IAAI,EAAE,CAAC,CAAC;IACjC,CAAC;IAED;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;OAwCG;IACH,OAAO,CAAgC,QAAkB;QACvD,OAAO,IAAI,CAAC,QAAQ,CAAI,EAAE,QAAQ,EAAE,CAAC,CAAC;IACxC,CAAC;IAED,qDAAqD;IACrD,MAAM,CAAC,OAAiB;QACtB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC,CAAC;IACpC,CAAC;IAED,qDAAqD;IACrD,MAAM,CAAC,OAAiB;QACtB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC,CAAC;IACpC,CAAC;IAED,mDAAmD;IACnD,IAAI,CAAC,KAAa;QAChB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,KAAK,EAAE,CAAC,CAAC;IAClC,CAAC;IAED,mDAAmD;IACnD,IAAI,CAAC,KAAW;QACd,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,KAAK,EAAE,CAAC,CAAC;IAClC,CAAC;IAED,qDAAqD;IACrD,MAAM,CAAC,OAA0B;QAC/B,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC,CAAC;IACpC,CAAC;IAED,sDAAsD;IACtD,OAAO,CAAC,QAAkB;QACxB,OAAO,IAAI,CAAC,QAAQ,CAAC,EAAE,QAAQ,EAAE,CAAC,CAAC;IACrC,CAAC;CACF;AAhLD,8CAgLC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/change_stream_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/change_stream_cursor.js new file mode 100644 index 000000000..a132bc5cd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/change_stream_cursor.js @@ -0,0 +1,107 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ChangeStreamCursor = void 0; +const change_stream_1 = require("../change_stream"); +const constants_1 = require("../constants"); +const aggregate_1 = require("../operations/aggregate"); +const execute_operation_1 = require("../operations/execute_operation"); +const utils_1 = require("../utils"); +const abstract_cursor_1 = require("./abstract_cursor"); +/** @internal */ +class ChangeStreamCursor extends abstract_cursor_1.AbstractCursor { + constructor(client, namespace, pipeline = [], options = {}) { + super(client, namespace, options); + this.pipeline = pipeline; + this.options = options; + this._resumeToken = null; + this.startAtOperationTime = options.startAtOperationTime; + if (options.startAfter) { + this.resumeToken = options.startAfter; + } + else if (options.resumeAfter) { + this.resumeToken = options.resumeAfter; + } + } + set resumeToken(token) { + this._resumeToken = token; + this.emit(change_stream_1.ChangeStream.RESUME_TOKEN_CHANGED, token); + } + get resumeToken() { + return this._resumeToken; + } + get resumeOptions() { + const options = { + ...this.options + }; + for (const key of ['resumeAfter', 'startAfter', 'startAtOperationTime']) { + delete options[key]; + } + if (this.resumeToken != null) { + if (this.options.startAfter && !this.hasReceived) { + options.startAfter = this.resumeToken; + } + else { + options.resumeAfter = this.resumeToken; + } + } + else if (this.startAtOperationTime != null && (0, utils_1.maxWireVersion)(this.server) >= 7) { + options.startAtOperationTime = this.startAtOperationTime; + } + return options; + } + cacheResumeToken(resumeToken) { + if (this.bufferedCount() === 0 && this.postBatchResumeToken) { + this.resumeToken = this.postBatchResumeToken; + } + else { + this.resumeToken = resumeToken; + } + this.hasReceived = true; + } + _processBatch(response) { + const cursor = response.cursor; + if (cursor.postBatchResumeToken) { + this.postBatchResumeToken = response.cursor.postBatchResumeToken; + const batch = 'firstBatch' in response.cursor ? response.cursor.firstBatch : response.cursor.nextBatch; + if (batch.length === 0) { + this.resumeToken = cursor.postBatchResumeToken; + } + } + } + clone() { + return new ChangeStreamCursor(this.client, this.namespace, this.pipeline, { + ...this.cursorOptions + }); + } + async _initialize(session) { + const aggregateOperation = new aggregate_1.AggregateOperation(this.namespace, this.pipeline, { + ...this.cursorOptions, + ...this.options, + session + }); + const response = await (0, execute_operation_1.executeOperation)(session.client, aggregateOperation); + const server = aggregateOperation.server; + this.maxWireVersion = (0, utils_1.maxWireVersion)(server); + if (this.startAtOperationTime == null && + this.resumeAfter == null && + this.startAfter == null && + this.maxWireVersion >= 7) { + this.startAtOperationTime = response.operationTime; + } + this._processBatch(response); + this.emit(constants_1.INIT, response); + this.emit(constants_1.RESPONSE); + // TODO: NODE-2882 + return { server, session, response }; + } + async getMore(batchSize) { + const response = await super.getMore(batchSize); + this.maxWireVersion = (0, utils_1.maxWireVersion)(this.server); + this._processBatch(response); + this.emit(change_stream_1.ChangeStream.MORE, response); + this.emit(change_stream_1.ChangeStream.RESPONSE); + return response; + } +} +exports.ChangeStreamCursor = ChangeStreamCursor; +//# sourceMappingURL=change_stream_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/change_stream_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/change_stream_cursor.js.map new file mode 100644 index 000000000..bb52a6d69 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/change_stream_cursor.js.map @@ -0,0 +1 @@ +{"version":3,"file":"change_stream_cursor.js","sourceRoot":"","sources":["../../src/cursor/change_stream_cursor.ts"],"names":[],"mappings":";;;AACA,oDAM0B;AAC1B,4CAA8C;AAG9C,uDAA6D;AAE7D,uEAAyF;AAEzF,oCAAiE;AACjE,uDAA+E;AAwB/E,gBAAgB;AAChB,MAAa,kBAGX,SAAQ,gCAA2C;IAkBnD,YACE,MAAmB,EACnB,SAA2B,EAC3B,WAAuB,EAAE,EACzB,UAAqC,EAAE;QAEvC,KAAK,CAAC,MAAM,EAAE,SAAS,EAAE,OAAO,CAAC,CAAC;QAElC,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC;QACzB,IAAI,CAAC,oBAAoB,GAAG,OAAO,CAAC,oBAAoB,CAAC;QAEzD,IAAI,OAAO,CAAC,UAAU,EAAE;YACtB,IAAI,CAAC,WAAW,GAAG,OAAO,CAAC,UAAU,CAAC;SACvC;aAAM,IAAI,OAAO,CAAC,WAAW,EAAE;YAC9B,IAAI,CAAC,WAAW,GAAG,OAAO,CAAC,WAAW,CAAC;SACxC;IACH,CAAC;IAED,IAAI,WAAW,CAAC,KAAkB;QAChC,IAAI,CAAC,YAAY,GAAG,KAAK,CAAC;QAC1B,IAAI,CAAC,IAAI,CAAC,4BAAY,CAAC,oBAAoB,EAAE,KAAK,CAAC,CAAC;IACtD,CAAC;IAED,IAAI,WAAW;QACb,OAAO,IAAI,CAAC,YAAY,CAAC;IAC3B,CAAC;IAED,IAAI,aAAa;QACf,MAAM,OAAO,GAA8B;YACzC,GAAG,IAAI,CAAC,OAAO;SAChB,CAAC;QAEF,KAAK,MAAM,GAAG,IAAI,CAAC,aAAa,EAAE,YAAY,EAAE,sBAAsB,CAAU,EAAE;YAChF,OAAO,OAAO,CAAC,GAAG,CAAC,CAAC;SACrB;QAED,IAAI,IAAI,CAAC,WAAW,IAAI,IAAI,EAAE;YAC5B,IAAI,IAAI,CAAC,OAAO,CAAC,UAAU,IAAI,CAAC,IAAI,CAAC,WAAW,EAAE;gBAChD,OAAO,CAAC,UAAU,GAAG,IAAI,CAAC,WAAW,CAAC;aACvC;iBAAM;gBACL,OAAO,CAAC,WAAW,GAAG,IAAI,CAAC,WAAW,CAAC;aACxC;SACF;aAAM,IAAI,IAAI,CAAC,oBAAoB,IAAI,IAAI,IAAI,IAAA,sBAAc,EAAC,IAAI,CAAC,MAAM,CAAC,IAAI,CAAC,EAAE;YAChF,OAAO,CAAC,oBAAoB,GAAG,IAAI,CAAC,oBAAoB,CAAC;SAC1D;QAED,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,gBAAgB,CAAC,WAAwB;QACvC,IAAI,IAAI,CAAC,aAAa,EAAE,KAAK,CAAC,IAAI,IAAI,CAAC,oBAAoB,EAAE;YAC3D,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC,oBAAoB,CAAC;SAC9C;aAAM;YACL,IAAI,CAAC,WAAW,GAAG,WAAW,CAAC;SAChC;QACD,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC;IAC1B,CAAC;IAED,aAAa,CAAC,QAAiD;QAC7D,MAAM,MAAM,GAAG,QAAQ,CAAC,MAAM,CAAC;QAC/B,IAAI,MAAM,CAAC,oBAAoB,EAAE;YAC/B,IAAI,CAAC,oBAAoB,GAAG,QAAQ,CAAC,MAAM,CAAC,oBAAoB,CAAC;YAEjE,MAAM,KAAK,GACT,YAAY,IAAI,QAAQ,CAAC,MAAM,CAAC,CAAC,CAAC,QAAQ,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,CAAC,QAAQ,CAAC,MAAM,CAAC,SAAS,CAAC;YAC3F,IAAI,KAAK,CAAC,MAAM,KAAK,CAAC,EAAE;gBACtB,IAAI,CAAC,WAAW,GAAG,MAAM,CAAC,oBAAoB,CAAC;aAChD;SACF;IACH,CAAC;IAED,KAAK;QACH,OAAO,IAAI,kBAAkB,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE;YACxE,GAAG,IAAI,CAAC,aAAa;SACtB,CAAC,CAAC;IACL,CAAC;IAED,KAAK,CAAC,WAAW,CAAC,OAAsB;QACtC,MAAM,kBAAkB,GAAG,IAAI,8BAAkB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,QAAQ,EAAE;YAC/E,GAAG,IAAI,CAAC,aAAa;YACrB,GAAG,IAAI,CAAC,OAAO;YACf,OAAO;SACR,CAAC,CAAC;QAEH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAGrC,OAAO,CAAC,MAAM,EAAE,kBAAkB,CAAC,CAAC;QAEtC,MAAM,MAAM,GAAG,kBAAkB,CAAC,MAAM,CAAC;QACzC,IAAI,CAAC,cAAc,GAAG,IAAA,sBAAc,EAAC,MAAM,CAAC,CAAC;QAE7C,IACE,IAAI,CAAC,oBAAoB,IAAI,IAAI;YACjC,IAAI,CAAC,WAAW,IAAI,IAAI;YACxB,IAAI,CAAC,UAAU,IAAI,IAAI;YACvB,IAAI,CAAC,cAAc,IAAI,CAAC,EACxB;YACA,IAAI,CAAC,oBAAoB,GAAG,QAAQ,CAAC,aAAa,CAAC;SACpD;QAED,IAAI,CAAC,aAAa,CAAC,QAAQ,CAAC,CAAC;QAE7B,IAAI,CAAC,IAAI,CAAC,gBAAI,EAAE,QAAQ,CAAC,CAAC;QAC1B,IAAI,CAAC,IAAI,CAAC,oBAAQ,CAAC,CAAC;QAEpB,kBAAkB;QAClB,OAAO,EAAE,MAAM,EAAE,OAAO,EAAE,QAAQ,EAAE,CAAC;IACvC,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,SAAiB;QACtC,MAAM,QAAQ,GAAG,MAAM,KAAK,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC;QAEhD,IAAI,CAAC,cAAc,GAAG,IAAA,sBAAc,EAAC,IAAI,CAAC,MAAM,CAAC,CAAC;QAClD,IAAI,CAAC,aAAa,CAAC,QAAmD,CAAC,CAAC;QAExE,IAAI,CAAC,IAAI,CAAC,4BAAY,CAAC,IAAI,EAAE,QAAQ,CAAC,CAAC;QACvC,IAAI,CAAC,IAAI,CAAC,4BAAY,CAAC,QAAQ,CAAC,CAAC;QACjC,OAAO,QAAQ,CAAC;IAClB,CAAC;CACF;AA/ID,gDA+IC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/find_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/find_cursor.js new file mode 100644 index 000000000..adfd58c82 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/find_cursor.js @@ -0,0 +1,396 @@ +"use strict"; +var _a; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.FindCursor = exports.FLAGS = void 0; +const responses_1 = require("../cmap/wire_protocol/responses"); +const error_1 = require("../error"); +const count_1 = require("../operations/count"); +const execute_operation_1 = require("../operations/execute_operation"); +const find_1 = require("../operations/find"); +const sort_1 = require("../sort"); +const utils_1 = require("../utils"); +const abstract_cursor_1 = require("./abstract_cursor"); +/** @internal */ +const kFilter = Symbol('filter'); +/** @internal */ +const kNumReturned = Symbol('numReturned'); +/** @internal */ +const kBuiltOptions = Symbol('builtOptions'); +/** @public Flags allowed for cursor */ +exports.FLAGS = [ + 'tailable', + 'oplogReplay', + 'noCursorTimeout', + 'awaitData', + 'exhaust', + 'partial' +]; +/** @public */ +class FindCursor extends abstract_cursor_1.AbstractCursor { + /** @internal */ + constructor(client, namespace, filter = {}, options = {}) { + super(client, namespace, options); + /** @internal */ + this[_a] = 0; + this[kFilter] = filter; + this[kBuiltOptions] = options; + if (options.sort != null) { + this[kBuiltOptions].sort = (0, sort_1.formatSort)(options.sort); + } + } + clone() { + const clonedOptions = (0, utils_1.mergeOptions)({}, this[kBuiltOptions]); + delete clonedOptions.session; + return new FindCursor(this.client, this.namespace, this[kFilter], { + ...clonedOptions + }); + } + map(transform) { + return super.map(transform); + } + /** @internal */ + async _initialize(session) { + const findOperation = new find_1.FindOperation(this.namespace, this[kFilter], { + ...this[kBuiltOptions], + ...this.cursorOptions, + session + }); + const response = await (0, execute_operation_1.executeOperation)(this.client, findOperation); + // the response is not a cursor when `explain` is enabled + if (responses_1.CursorResponse.is(response)) { + this[kNumReturned] = response.batchSize; + } + else { + // Can be an explain response, hence the ?. on everything + this[kNumReturned] = this[kNumReturned] + (response?.cursor?.firstBatch?.length ?? 0); + } + // TODO: NODE-2882 + return { server: findOperation.server, session, response }; + } + /** @internal */ + async getMore(batchSize) { + const numReturned = this[kNumReturned]; + if (numReturned) { + // TODO(DRIVERS-1448): Remove logic to enforce `limit` in the driver + const limit = this[kBuiltOptions].limit; + batchSize = + limit && limit > 0 && numReturned + batchSize > limit ? limit - numReturned : batchSize; + if (batchSize <= 0) { + try { + await this.close(); + } + catch (error) { + (0, utils_1.squashError)(error); + // this is an optimization for the special case of a limit for a find command to avoid an + // extra getMore when the limit has been reached and the limit is a multiple of the batchSize. + // This is a consequence of the new query engine in 5.0 having no knowledge of the limit as it + // produces results for the find command. Once a batch is filled up, it is returned and only + // on the subsequent getMore will the query framework consider the limit, determine the cursor + // is exhausted and return a cursorId of zero. + // instead, if we determine there are no more documents to request from the server, we preemptively + // close the cursor + } + return responses_1.CursorResponse.emptyGetMore; + } + } + const response = await super.getMore(batchSize, false); + // TODO: wrap this in some logic to prevent it from happening if we don't need this support + if (responses_1.CursorResponse.is(response)) { + this[kNumReturned] = this[kNumReturned] + response.batchSize; + } + else { + this[kNumReturned] = this[kNumReturned] + (response?.cursor?.nextBatch?.length ?? 0); + } + return response; + } + /** + * Get the count of documents for this cursor + * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead + */ + async count(options) { + (0, utils_1.emitWarningOnce)('cursor.count is deprecated and will be removed in the next major version, please use `collection.estimatedDocumentCount` or `collection.countDocuments` instead '); + if (typeof options === 'boolean') { + throw new error_1.MongoInvalidArgumentError('Invalid first parameter to count'); + } + return await (0, execute_operation_1.executeOperation)(this.client, new count_1.CountOperation(this.namespace, this[kFilter], { + ...this[kBuiltOptions], + ...this.cursorOptions, + ...options + })); + } + /** Execute the explain for the cursor */ + async explain(verbosity) { + return await (0, execute_operation_1.executeOperation)(this.client, new find_1.FindOperation(this.namespace, this[kFilter], { + ...this[kBuiltOptions], + ...this.cursorOptions, + explain: verbosity ?? true + })); + } + /** Set the cursor query */ + filter(filter) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kFilter] = filter; + return this; + } + /** + * Set the cursor hint + * + * @param hint - If specified, then the query system will only consider plans using the hinted index. + */ + hint(hint) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].hint = hint; + return this; + } + /** + * Set the cursor min + * + * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order. + */ + min(min) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].min = min; + return this; + } + /** + * Set the cursor max + * + * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order. + */ + max(max) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].max = max; + return this; + } + /** + * Set the cursor returnKey. + * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents. + * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields. + * + * @param value - the returnKey value. + */ + returnKey(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].returnKey = value; + return this; + } + /** + * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection. + * + * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find. + */ + showRecordId(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].showRecordId = value; + return this; + } + /** + * Add a query modifier to the cursor query + * + * @param name - The query modifier (must start with $, such as $orderby etc) + * @param value - The modifier value. + */ + addQueryModifier(name, value) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (name[0] !== '$') { + throw new error_1.MongoInvalidArgumentError(`${name} is not a valid query modifier`); + } + // Strip of the $ + const field = name.substr(1); + // NOTE: consider some TS magic for this + switch (field) { + case 'comment': + this[kBuiltOptions].comment = value; + break; + case 'explain': + this[kBuiltOptions].explain = value; + break; + case 'hint': + this[kBuiltOptions].hint = value; + break; + case 'max': + this[kBuiltOptions].max = value; + break; + case 'maxTimeMS': + this[kBuiltOptions].maxTimeMS = value; + break; + case 'min': + this[kBuiltOptions].min = value; + break; + case 'orderby': + this[kBuiltOptions].sort = (0, sort_1.formatSort)(value); + break; + case 'query': + this[kFilter] = value; + break; + case 'returnKey': + this[kBuiltOptions].returnKey = value; + break; + case 'showDiskLoc': + this[kBuiltOptions].showRecordId = value; + break; + default: + throw new error_1.MongoInvalidArgumentError(`Invalid query modifier: ${name}`); + } + return this; + } + /** + * Add a comment to the cursor query allowing for tracking the comment in the log. + * + * @param value - The comment attached to this query. + */ + comment(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].comment = value; + return this; + } + /** + * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise) + * + * @param value - Number of milliseconds to wait before aborting the tailed query. + */ + maxAwaitTimeMS(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (typeof value !== 'number') { + throw new error_1.MongoInvalidArgumentError('Argument for maxAwaitTimeMS must be a number'); + } + this[kBuiltOptions].maxAwaitTimeMS = value; + return this; + } + /** + * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher) + * + * @param value - Number of milliseconds to wait before aborting the query. + */ + maxTimeMS(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (typeof value !== 'number') { + throw new error_1.MongoInvalidArgumentError('Argument for maxTimeMS must be a number'); + } + this[kBuiltOptions].maxTimeMS = value; + return this; + } + /** + * Add a project stage to the aggregation pipeline + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * By default chaining a projection to your cursor changes the returned type to the generic + * {@link Document} type. + * You should specify a parameterized type to have assertions on your final results. + * + * @example + * ```typescript + * // Best way + * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true }); + * // Flexible way + * const docs: FindCursor = cursor.project({ _id: 0, a: true }); + * ``` + * + * @remarks + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling project, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: FindCursor<{ a: number; b: string }> = coll.find(); + * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true }); + * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray(); + * + * // or always use chaining and save the final cursor + * + * const cursor = coll.find().project<{ a: string }>({ + * _id: 0, + * a: { $convert: { input: '$a', to: 'string' } + * }}); + * ``` + */ + project(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].projection = value; + return this; + } + /** + * Sets the sort order of the cursor query. + * + * @param sort - The key or keys set for the sort. + * @param direction - The direction of the sorting (1 or -1). + */ + sort(sort, direction) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (this[kBuiltOptions].tailable) { + throw new error_1.MongoTailableCursorError('Tailable cursor does not support sorting'); + } + this[kBuiltOptions].sort = (0, sort_1.formatSort)(sort, direction); + return this; + } + /** + * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) + * + * @remarks + * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation} + */ + allowDiskUse(allow = true) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (!this[kBuiltOptions].sort) { + throw new error_1.MongoInvalidArgumentError('Option "allowDiskUse" requires a sort specification'); + } + // As of 6.0 the default is true. This allows users to get back to the old behavior. + if (!allow) { + this[kBuiltOptions].allowDiskUse = false; + return this; + } + this[kBuiltOptions].allowDiskUse = true; + return this; + } + /** + * Set the collation options for the cursor. + * + * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). + */ + collation(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + this[kBuiltOptions].collation = value; + return this; + } + /** + * Set the limit for the cursor. + * + * @param value - The limit for the cursor query. + */ + limit(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (this[kBuiltOptions].tailable) { + throw new error_1.MongoTailableCursorError('Tailable cursor does not support limit'); + } + if (typeof value !== 'number') { + throw new error_1.MongoInvalidArgumentError('Operation "limit" requires an integer'); + } + this[kBuiltOptions].limit = value; + return this; + } + /** + * Set the skip for the cursor. + * + * @param value - The skip for the cursor query. + */ + skip(value) { + (0, abstract_cursor_1.assertUninitialized)(this); + if (this[kBuiltOptions].tailable) { + throw new error_1.MongoTailableCursorError('Tailable cursor does not support skip'); + } + if (typeof value !== 'number') { + throw new error_1.MongoInvalidArgumentError('Operation "skip" requires an integer'); + } + this[kBuiltOptions].skip = value; + return this; + } +} +exports.FindCursor = FindCursor; +_a = kNumReturned; +//# sourceMappingURL=find_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/find_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/find_cursor.js.map new file mode 100644 index 000000000..1df62c46b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/find_cursor.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_collections_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_collections_cursor.js new file mode 100644 index 000000000..91463b7ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_collections_cursor.js @@ -0,0 +1,34 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ListCollectionsCursor = void 0; +const execute_operation_1 = require("../operations/execute_operation"); +const list_collections_1 = require("../operations/list_collections"); +const abstract_cursor_1 = require("./abstract_cursor"); +/** @public */ +class ListCollectionsCursor extends abstract_cursor_1.AbstractCursor { + constructor(db, filter, options) { + super(db.client, db.s.namespace, options); + this.parent = db; + this.filter = filter; + this.options = options; + } + clone() { + return new ListCollectionsCursor(this.parent, this.filter, { + ...this.options, + ...this.cursorOptions + }); + } + /** @internal */ + async _initialize(session) { + const operation = new list_collections_1.ListCollectionsOperation(this.parent, this.filter, { + ...this.cursorOptions, + ...this.options, + session + }); + const response = await (0, execute_operation_1.executeOperation)(this.parent.client, operation); + // TODO: NODE-2882 + return { server: operation.server, session, response }; + } +} +exports.ListCollectionsCursor = ListCollectionsCursor; +//# sourceMappingURL=list_collections_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_collections_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_collections_cursor.js.map new file mode 100644 index 000000000..160c468f3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_collections_cursor.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_indexes_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_indexes_cursor.js new file mode 100644 index 000000000..9f2cb7307 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_indexes_cursor.js @@ -0,0 +1,33 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ListIndexesCursor = void 0; +const execute_operation_1 = require("../operations/execute_operation"); +const indexes_1 = require("../operations/indexes"); +const abstract_cursor_1 = require("./abstract_cursor"); +/** @public */ +class ListIndexesCursor extends abstract_cursor_1.AbstractCursor { + constructor(collection, options) { + super(collection.client, collection.s.namespace, options); + this.parent = collection; + this.options = options; + } + clone() { + return new ListIndexesCursor(this.parent, { + ...this.options, + ...this.cursorOptions + }); + } + /** @internal */ + async _initialize(session) { + const operation = new indexes_1.ListIndexesOperation(this.parent, { + ...this.cursorOptions, + ...this.options, + session + }); + const response = await (0, execute_operation_1.executeOperation)(this.parent.client, operation); + // TODO: NODE-2882 + return { server: operation.server, session, response }; + } +} +exports.ListIndexesCursor = ListIndexesCursor; +//# sourceMappingURL=list_indexes_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_indexes_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_indexes_cursor.js.map new file mode 100644 index 000000000..eb0c7877e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_indexes_cursor.js.map @@ -0,0 +1 @@ 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a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js new file mode 100644 index 000000000..d9c39c70e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js @@ -0,0 +1,14 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ListSearchIndexesCursor = void 0; +const aggregation_cursor_1 = require("./aggregation_cursor"); +/** @public */ +class ListSearchIndexesCursor extends aggregation_cursor_1.AggregationCursor { + /** @internal */ + constructor({ fullNamespace: ns, client }, name, options = {}) { + const pipeline = name == null ? [{ $listSearchIndexes: {} }] : [{ $listSearchIndexes: { name } }]; + super(client, ns, pipeline, options); + } +} +exports.ListSearchIndexesCursor = ListSearchIndexesCursor; +//# sourceMappingURL=list_search_indexes_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js.map new file mode 100644 index 000000000..6353a21ac --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/list_search_indexes_cursor.js.map @@ -0,0 +1 @@ +{"version":3,"file":"list_search_indexes_cursor.js","sourceRoot":"","sources":["../../src/cursor/list_search_indexes_cursor.ts"],"names":[],"mappings":";;;AAEA,6DAAyD;AAKzD,cAAc;AACd,MAAa,uBAAwB,SAAQ,sCAAmC;IAC9E,gBAAgB;IAChB,YACE,EAAE,aAAa,EAAE,EAAE,EAAE,MAAM,EAAc,EACzC,IAAmB,EACnB,UAAoC,EAAE;QAEtC,MAAM,QAAQ,GACZ,IAAI,IAAI,IAAI,CAAC,CAAC,CAAC,CAAC,EAAE,kBAAkB,EAAE,EAAE,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,kBAAkB,EAAE,EAAE,IAAI,EAAE,EAAE,CAAC,CAAC;QACnF,KAAK,CAAC,MAAM,EAAE,EAAE,EAAE,QAAQ,EAAE,OAAO,CAAC,CAAC;IACvC,CAAC;CACF;AAXD,0DAWC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/run_command_cursor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/run_command_cursor.js new file mode 100644 index 000000000..72ddabdae --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/run_command_cursor.js @@ -0,0 +1,93 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.RunCommandCursor = void 0; +const error_1 = require("../error"); +const execute_operation_1 = require("../operations/execute_operation"); +const get_more_1 = require("../operations/get_more"); +const run_command_1 = require("../operations/run_command"); +const utils_1 = require("../utils"); +const abstract_cursor_1 = require("./abstract_cursor"); +/** @public */ +class RunCommandCursor extends abstract_cursor_1.AbstractCursor { + /** + * Controls the `getMore.comment` field + * @param comment - any BSON value + */ + setComment(comment) { + this.getMoreOptions.comment = comment; + return this; + } + /** + * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await + * @param maxTimeMS - the number of milliseconds to wait for new data + */ + setMaxTimeMS(maxTimeMS) { + this.getMoreOptions.maxAwaitTimeMS = maxTimeMS; + return this; + } + /** + * Controls the `getMore.batchSize` field + * @param maxTimeMS - the number documents to return in the `nextBatch` + */ + setBatchSize(batchSize) { + this.getMoreOptions.batchSize = batchSize; + return this; + } + /** Unsupported for RunCommandCursor */ + clone() { + throw new error_1.MongoAPIError('Clone not supported, create a new cursor with db.runCursorCommand'); + } + /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */ + withReadConcern(_) { + throw new error_1.MongoAPIError('RunCommandCursor does not support readConcern it must be attached to the command being run'); + } + /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */ + addCursorFlag(_, __) { + throw new error_1.MongoAPIError('RunCommandCursor does not support cursor flags, they must be attached to the command being run'); + } + /** Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document */ + maxTimeMS(_) { + throw new error_1.MongoAPIError('maxTimeMS must be configured on the command document directly, to configure getMore.maxTimeMS use cursor.setMaxTimeMS()'); + } + /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */ + batchSize(_) { + throw new error_1.MongoAPIError('batchSize must be configured on the command document directly, to configure getMore.batchSize use cursor.setBatchSize()'); + } + /** @internal */ + constructor(db, command, options = {}) { + super(db.client, (0, utils_1.ns)(db.namespace), options); + this.getMoreOptions = {}; + this.db = db; + this.command = Object.freeze({ ...command }); + } + /** @internal */ + async _initialize(session) { + const operation = new run_command_1.RunCommandOperation(this.db, this.command, { + ...this.cursorOptions, + session: session, + readPreference: this.cursorOptions.readPreference + }); + const response = await (0, execute_operation_1.executeOperation)(this.client, operation); + if (response.cursor == null) { + throw new error_1.MongoUnexpectedServerResponseError('Expected server to respond with cursor'); + } + return { + server: operation.server, + session, + response + }; + } + /** @internal */ + async getMore(_batchSize) { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + const getMoreOperation = new get_more_1.GetMoreOperation(this.namespace, this.id, this.server, { + ...this.cursorOptions, + session: this.session, + ...this.getMoreOptions, + useCursorResponse: false + }); + return await (0, execute_operation_1.executeOperation)(this.client, getMoreOperation); + } +} +exports.RunCommandCursor = RunCommandCursor; +//# sourceMappingURL=run_command_cursor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/run_command_cursor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/run_command_cursor.js.map new file mode 100644 index 000000000..19baac0db --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/cursor/run_command_cursor.js.map @@ -0,0 +1 @@ +{"version":3,"file":"run_command_cursor.js","sourceRoot":"","sources":["../../src/cursor/run_command_cursor.ts"],"names":[],"mappings":";;;AAEA,oCAA6E;AAC7E,uEAAyF;AACzF,qDAA0D;AAC1D,2DAAgE;AAIhE,oCAA8B;AAC9B,uDAAmD;AAcnD,cAAc;AACd,MAAa,gBAAiB,SAAQ,gCAAc;IAQlD;;;OAGG;IACI,UAAU,CAAC,OAAY;QAC5B,IAAI,CAAC,cAAc,CAAC,OAAO,GAAG,OAAO,CAAC;QACtC,OAAO,IAAI,CAAC;IACd,CAAC;IAED;;;OAGG;IACI,YAAY,CAAC,SAAiB;QACnC,IAAI,CAAC,cAAc,CAAC,cAAc,GAAG,SAAS,CAAC;QAC/C,OAAO,IAAI,CAAC;IACd,CAAC;IAED;;;OAGG;IACI,YAAY,CAAC,SAAiB;QACnC,IAAI,CAAC,cAAc,CAAC,SAAS,GAAG,SAAS,CAAC;QAC1C,OAAO,IAAI,CAAC;IACd,CAAC;IAED,uCAAuC;IACvB,KAAK;QACnB,MAAM,IAAI,qBAAa,CAAC,mEAAmE,CAAC,CAAC;IAC/F,CAAC;IAED,oGAAoG;IACpF,eAAe,CAAC,CAAkB;QAChD,MAAM,IAAI,qBAAa,CACrB,4FAA4F,CAC7F,CAAC;IACJ,CAAC;IAED,6GAA6G;IAC7F,aAAa,CAAC,CAAS,EAAE,EAAW;QAClD,MAAM,IAAI,qBAAa,CACrB,gGAAgG,CACjG,CAAC;IACJ,CAAC;IAED,kGAAkG;IAClF,SAAS,CAAC,CAAS;QACjC,MAAM,IAAI,qBAAa,CACrB,yHAAyH,CAC1H,CAAC;IACJ,CAAC;IAED,kGAAkG;IAClF,SAAS,CAAC,CAAS;QACjC,MAAM,IAAI,qBAAa,CACrB,yHAAyH,CAC1H,CAAC;IACJ,CAAC;IAKD,gBAAgB;IAChB,YAAY,EAAM,EAAE,OAAiB,EAAE,UAAmC,EAAE;QAC1E,KAAK,CAAC,EAAE,CAAC,MAAM,EAAE,IAAA,UAAE,EAAC,EAAE,CAAC,SAAS,CAAC,EAAE,OAAO,CAAC,CAAC;QAvE9B,mBAAc,GAI1B,EAAE,CAAC;QAoEL,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,OAAO,GAAG,MAAM,CAAC,MAAM,CAAC,EAAE,GAAG,OAAO,EAAE,CAAC,CAAC;IAC/C,CAAC;IAED,gBAAgB;IACN,KAAK,CAAC,WAAW,CAAC,OAAsB;QAChD,MAAM,SAAS,GAAG,IAAI,iCAAmB,CAA2B,IAAI,CAAC,EAAE,EAAE,IAAI,CAAC,OAAO,EAAE;YACzF,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO,EAAE,OAAO;YAChB,cAAc,EAAE,IAAI,CAAC,aAAa,CAAC,cAAc;SAClD,CAAC,CAAC;QACH,MAAM,QAAQ,GAAG,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,EAAE,SAAS,CAAC,CAAC;QAChE,IAAI,QAAQ,CAAC,MAAM,IAAI,IAAI,EAAE;YAC3B,MAAM,IAAI,0CAAkC,CAAC,wCAAwC,CAAC,CAAC;SACxF;QACD,OAAO;YACL,MAAM,EAAE,SAAS,CAAC,MAAM;YACxB,OAAO;YACP,QAAQ;SACT,CAAC;IACJ,CAAC;IAED,gBAAgB;IACP,KAAK,CAAC,OAAO,CAAC,UAAkB;QACvC,oEAAoE;QACpE,MAAM,gBAAgB,GAAG,IAAI,2BAAgB,CAAC,IAAI,CAAC,SAAS,EAAE,IAAI,CAAC,EAAG,EAAE,IAAI,CAAC,MAAO,EAAE;YACpF,GAAG,IAAI,CAAC,aAAa;YACrB,OAAO,EAAE,IAAI,CAAC,OAAO;YACrB,GAAG,IAAI,CAAC,cAAc;YACtB,iBAAiB,EAAE,KAAK;SACzB,CAAC,CAAC;QAEH,OAAO,MAAM,IAAA,oCAAgB,EAAC,IAAI,CAAC,MAAM,EAAE,gBAAgB,CAAC,CAAC;IAC/D,CAAC;CACF;AA5GD,4CA4GC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/db.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/db.js new file mode 100644 index 000000000..3cbb5dbb6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/db.js @@ -0,0 +1,352 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Db = void 0; +const admin_1 = require("./admin"); +const bson_1 = require("./bson"); +const change_stream_1 = require("./change_stream"); +const collection_1 = require("./collection"); +const CONSTANTS = require("./constants"); +const aggregation_cursor_1 = require("./cursor/aggregation_cursor"); +const list_collections_cursor_1 = require("./cursor/list_collections_cursor"); +const run_command_cursor_1 = require("./cursor/run_command_cursor"); +const error_1 = require("./error"); +const collections_1 = require("./operations/collections"); +const create_collection_1 = require("./operations/create_collection"); +const drop_1 = require("./operations/drop"); +const execute_operation_1 = require("./operations/execute_operation"); +const indexes_1 = require("./operations/indexes"); +const profiling_level_1 = require("./operations/profiling_level"); +const remove_user_1 = require("./operations/remove_user"); +const rename_1 = require("./operations/rename"); +const run_command_1 = require("./operations/run_command"); +const set_profiling_level_1 = require("./operations/set_profiling_level"); +const stats_1 = require("./operations/stats"); +const read_concern_1 = require("./read_concern"); +const read_preference_1 = require("./read_preference"); +const utils_1 = require("./utils"); +const write_concern_1 = require("./write_concern"); +// Allowed parameters +const DB_OPTIONS_ALLOW_LIST = [ + 'writeConcern', + 'readPreference', + 'readPreferenceTags', + 'native_parser', + 'forceServerObjectId', + 'pkFactory', + 'serializeFunctions', + 'raw', + 'authSource', + 'ignoreUndefined', + 'readConcern', + 'retryMiliSeconds', + 'numberOfRetries', + 'useBigInt64', + 'promoteBuffers', + 'promoteLongs', + 'bsonRegExp', + 'enableUtf8Validation', + 'promoteValues', + 'compression', + 'retryWrites', + 'timeoutMS' +]; +/** + * The **Db** class is a class that represents a MongoDB Database. + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * interface Pet { + * name: string; + * kind: 'dog' | 'cat' | 'fish'; + * } + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const db = client.db(); + * + * // Create a collection that validates our union + * await db.createCollection('pets', { + * validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } } + * }) + * ``` + */ +class Db { + /** + * Creates a new Db instance. + * + * Db name cannot contain a dot, the server may apply more restrictions when an operation is run. + * + * @param client - The MongoClient for the database. + * @param databaseName - The name of the database this instance represents. + * @param options - Optional settings for Db construction. + */ + constructor(client, databaseName, options) { + options = options ?? {}; + // Filter the options + options = (0, utils_1.filterOptions)(options, DB_OPTIONS_ALLOW_LIST); + // Ensure there are no dots in database name + if (typeof databaseName === 'string' && databaseName.includes('.')) { + throw new error_1.MongoInvalidArgumentError(`Database names cannot contain the character '.'`); + } + // Internal state of the db object + this.s = { + // Options + options, + // Unpack read preference + readPreference: read_preference_1.ReadPreference.fromOptions(options), + // Merge bson options + bsonOptions: (0, bson_1.resolveBSONOptions)(options, client), + // Set up the primary key factory or fallback to ObjectId + pkFactory: options?.pkFactory ?? utils_1.DEFAULT_PK_FACTORY, + // ReadConcern + readConcern: read_concern_1.ReadConcern.fromOptions(options), + writeConcern: write_concern_1.WriteConcern.fromOptions(options), + // Namespace + namespace: new utils_1.MongoDBNamespace(databaseName) + }; + this.client = client; + } + get databaseName() { + return this.s.namespace.db; + } + // Options + get options() { + return this.s.options; + } + /** + * Check if a secondary can be used (because the read preference is *not* set to primary) + */ + get secondaryOk() { + return this.s.readPreference?.preference !== 'primary' || false; + } + get readConcern() { + return this.s.readConcern; + } + /** + * The current readPreference of the Db. If not explicitly defined for + * this Db, will be inherited from the parent MongoClient + */ + get readPreference() { + if (this.s.readPreference == null) { + return this.client.readPreference; + } + return this.s.readPreference; + } + get bsonOptions() { + return this.s.bsonOptions; + } + // get the write Concern + get writeConcern() { + return this.s.writeConcern; + } + get namespace() { + return this.s.namespace.toString(); + } + /** + * Create a new collection on a server with the specified options. Use this to create capped collections. + * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/ + * + * Collection namespace validation is performed server-side. + * + * @param name - The name of the collection to create + * @param options - Optional settings for the command + */ + async createCollection(name, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new create_collection_1.CreateCollectionOperation(this, name, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Execute a command + * + * @remarks + * This command does not inherit options from the MongoClient. + * + * The driver will ensure the following fields are attached to the command sent to the server: + * - `lsid` - sourced from an implicit session or options.session + * - `$readPreference` - defaults to primary or can be configured by options.readPreference + * - `$db` - sourced from the name of this database + * + * If the client has a serverApi setting: + * - `apiVersion` + * - `apiStrict` + * - `apiDeprecationErrors` + * + * When in a transaction: + * - `readConcern` - sourced from readConcern set on the TransactionOptions + * - `writeConcern` - sourced from writeConcern set on the TransactionOptions + * + * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value. + * + * @param command - The command to run + * @param options - Optional settings for the command + */ + async command(command, options) { + // Intentionally, we do not inherit options from parent for this operation. + return await (0, execute_operation_1.executeOperation)(this.client, new run_command_1.RunCommandOperation(this, command, { + ...(0, bson_1.resolveBSONOptions)(options), + session: options?.session, + readPreference: options?.readPreference + })); + } + /** + * Execute an aggregation framework pipeline against the database, needs MongoDB \>= 3.6 + * + * @param pipeline - An array of aggregation stages to be executed + * @param options - Optional settings for the command + */ + aggregate(pipeline = [], options) { + return new aggregation_cursor_1.AggregationCursor(this.client, this.s.namespace, pipeline, (0, utils_1.resolveOptions)(this, options)); + } + /** Return the Admin db instance */ + admin() { + return new admin_1.Admin(this); + } + /** + * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly. + * + * Collection namespace validation is performed server-side. + * + * @param name - the collection name we wish to access. + * @returns return the new Collection instance + */ + collection(name, options = {}) { + if (typeof options === 'function') { + throw new error_1.MongoInvalidArgumentError('The callback form of this helper has been removed.'); + } + return new collection_1.Collection(this, name, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Get all the db statistics. + * + * @param options - Optional settings for the command + */ + async stats(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new stats_1.DbStatsOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + listCollections(filter = {}, options = {}) { + return new list_collections_cursor_1.ListCollectionsCursor(this, filter, (0, utils_1.resolveOptions)(this, options)); + } + /** + * Rename a collection. + * + * @remarks + * This operation does not inherit options from the MongoClient. + * + * @param fromCollection - Name of current collection to rename + * @param toCollection - New name of of the collection + * @param options - Optional settings for the command + */ + async renameCollection(fromCollection, toCollection, options) { + // Intentionally, we do not inherit options from parent for this operation. + return await (0, execute_operation_1.executeOperation)(this.client, new rename_1.RenameOperation(this.collection(fromCollection), toCollection, { ...options, new_collection: true, readPreference: read_preference_1.ReadPreference.primary })); + } + /** + * Drop a collection from the database, removing it permanently. New accesses will create a new collection. + * + * @param name - Name of collection to drop + * @param options - Optional settings for the command + */ + async dropCollection(name, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new drop_1.DropCollectionOperation(this, name, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Drop a database, removing it permanently from the server. + * + * @param options - Optional settings for the command + */ + async dropDatabase(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new drop_1.DropDatabaseOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Fetch all collections for the current db. + * + * @param options - Optional settings for the command + */ + async collections(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new collections_1.CollectionsOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Creates an index on the db and collection. + * + * @param name - Name of the collection to create the index on. + * @param indexSpec - Specify the field to index, or an index specification + * @param options - Optional settings for the command + */ + async createIndex(name, indexSpec, options) { + const indexes = await (0, execute_operation_1.executeOperation)(this.client, indexes_1.CreateIndexesOperation.fromIndexSpecification(this, name, indexSpec, options)); + return indexes[0]; + } + /** + * Remove a user from a database + * + * @param username - The username to remove + * @param options - Optional settings for the command + */ + async removeUser(username, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new remove_user_1.RemoveUserOperation(this, username, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Set the current profiling level of MongoDB + * + * @param level - The new profiling level (off, slow_only, all). + * @param options - Optional settings for the command + */ + async setProfilingLevel(level, options) { + return await (0, execute_operation_1.executeOperation)(this.client, new set_profiling_level_1.SetProfilingLevelOperation(this, level, (0, utils_1.resolveOptions)(this, options))); + } + /** + * Retrieve the current profiling Level for MongoDB + * + * @param options - Optional settings for the command + */ + async profilingLevel(options) { + return await (0, execute_operation_1.executeOperation)(this.client, new profiling_level_1.ProfilingLevelOperation(this, (0, utils_1.resolveOptions)(this, options))); + } + async indexInformation(name, options) { + return await this.collection(name).indexInformation((0, utils_1.resolveOptions)(this, options)); + } + /** + * Create a new Change Stream, watching for new changes (insertions, updates, + * replacements, deletions, and invalidations) in this database. Will ignore all + * changes to system collections. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to provide the schema that may be defined for all the collections within this database + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TSchema - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch(pipeline = [], options = {}) { + // Allow optionally not specifying a pipeline + if (!Array.isArray(pipeline)) { + options = pipeline; + pipeline = []; + } + return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options)); + } + /** + * A low level cursor API providing basic driver functionality: + * - ClientSession management + * - ReadPreference for server selection + * - Running getMores automatically when a local batch is exhausted + * + * @param command - The command that will start a cursor on the server. + * @param options - Configurations for running the command, bson options will apply to getMores + */ + runCursorCommand(command, options) { + return new run_command_cursor_1.RunCommandCursor(this, command, options); + } +} +Db.SYSTEM_NAMESPACE_COLLECTION = CONSTANTS.SYSTEM_NAMESPACE_COLLECTION; +Db.SYSTEM_INDEX_COLLECTION = CONSTANTS.SYSTEM_INDEX_COLLECTION; +Db.SYSTEM_PROFILE_COLLECTION = CONSTANTS.SYSTEM_PROFILE_COLLECTION; +Db.SYSTEM_USER_COLLECTION = CONSTANTS.SYSTEM_USER_COLLECTION; +Db.SYSTEM_COMMAND_COLLECTION = CONSTANTS.SYSTEM_COMMAND_COLLECTION; +Db.SYSTEM_JS_COLLECTION = CONSTANTS.SYSTEM_JS_COLLECTION; +exports.Db = Db; +//# sourceMappingURL=db.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/db.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/db.js.map new file mode 100644 index 000000000..ddad7fe99 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/db.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/deps.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/deps.js new file mode 100644 index 000000000..4cb254b9f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/deps.js @@ -0,0 +1,117 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.getMongoDBClientEncryption = exports.aws4 = exports.getSocks = exports.getSnappy = exports.getGcpMetadata = exports.getAwsCredentialProvider = exports.getZstdLibrary = exports.getKerberos = void 0; +const error_1 = require("./error"); +function makeErrorModule(error) { + const props = error ? { kModuleError: error } : {}; + return new Proxy(props, { + get: (_, key) => { + if (key === 'kModuleError') { + return error; + } + throw error; + }, + set: () => { + throw error; + } + }); +} +function getKerberos() { + let kerberos; + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + kerberos = require('kerberos'); + } + catch (error) { + kerberos = makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `kerberos` not found. Please install it to enable kerberos authentication', { cause: error, dependencyName: 'kerberos' })); + } + return kerberos; +} +exports.getKerberos = getKerberos; +function getZstdLibrary() { + let ZStandard; + try { + ZStandard = require('@mongodb-js/zstd'); + } + catch (error) { + ZStandard = makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `@mongodb-js/zstd` not found. Please install it to enable zstd compression', { cause: error, dependencyName: 'zstd' })); + } + return ZStandard; +} +exports.getZstdLibrary = getZstdLibrary; +function getAwsCredentialProvider() { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const credentialProvider = require('@aws-sdk/credential-providers'); + return credentialProvider; + } + catch (error) { + return makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `@aws-sdk/credential-providers` not found.' + + ' Please install it to enable getting aws credentials via the official sdk.', { cause: error, dependencyName: '@aws-sdk/credential-providers' })); + } +} +exports.getAwsCredentialProvider = getAwsCredentialProvider; +function getGcpMetadata() { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const credentialProvider = require('gcp-metadata'); + return credentialProvider; + } + catch (error) { + return makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `gcp-metadata` not found.' + + ' Please install it to enable getting gcp credentials via the official sdk.', { cause: error, dependencyName: 'gcp-metadata' })); + } +} +exports.getGcpMetadata = getGcpMetadata; +function getSnappy() { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const value = require('snappy'); + return value; + } + catch (error) { + const kModuleError = new error_1.MongoMissingDependencyError('Optional module `snappy` not found. Please install it to enable snappy compression', { cause: error, dependencyName: 'snappy' }); + return { kModuleError }; + } +} +exports.getSnappy = getSnappy; +function getSocks() { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const value = require('socks'); + return value; + } + catch (error) { + const kModuleError = new error_1.MongoMissingDependencyError('Optional module `socks` not found. Please install it to connections over a SOCKS5 proxy', { cause: error, dependencyName: 'socks' }); + return { kModuleError }; + } +} +exports.getSocks = getSocks; +exports.aws4 = loadAws4(); +function loadAws4() { + let aws4; + try { + aws4 = require('aws4'); + } + catch (error) { + aws4 = makeErrorModule(new error_1.MongoMissingDependencyError('Optional module `aws4` not found. Please install it to enable AWS authentication', { cause: error, dependencyName: 'aws4' })); + } + return aws4; +} +/** A utility function to get the instance of mongodb-client-encryption, if it exists. */ +function getMongoDBClientEncryption() { + let mongodbClientEncryption = null; + try { + // NOTE(NODE-3199): Ensure you always wrap an optional require literally in the try block + // Cannot be moved to helper utility function, bundlers search and replace the actual require call + // in a way that makes this line throw at bundle time, not runtime, catching here will make bundling succeed + mongodbClientEncryption = require('mongodb-client-encryption'); + } + catch (error) { + const kModuleError = new error_1.MongoMissingDependencyError('Optional module `mongodb-client-encryption` not found. Please install it to use auto encryption or ClientEncryption.', { cause: error, dependencyName: 'mongodb-client-encryption' }); + return { kModuleError }; + } + return mongodbClientEncryption; +} +exports.getMongoDBClientEncryption = getMongoDBClientEncryption; +//# sourceMappingURL=deps.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/deps.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/deps.js.map new file mode 100644 index 000000000..f9fac532a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/deps.js.map @@ -0,0 +1 @@ +{"version":3,"file":"deps.js","sourceRoot":"","sources":["../src/deps.ts"],"names":[],"mappings":";;;AAEA,mCAAsD;AAGtD,SAAS,eAAe,CAAC,KAAU;IACjC,MAAM,KAAK,GAAG,KAAK,CAAC,CAAC,CAAC,EAAE,YAAY,EAAE,KAAK,EAAE,CAAC,CAAC,CAAC,EAAE,CAAC;IACnD,OAAO,IAAI,KAAK,CAAC,KAAK,EAAE;QACtB,GAAG,EAAE,CAAC,CAAM,EAAE,GAAQ,EAAE,EAAE;YACxB,IAAI,GAAG,KAAK,cAAc,EAAE;gBAC1B,OAAO,KAAK,CAAC;aACd;YACD,MAAM,KAAK,CAAC;QACd,CAAC;QACD,GAAG,EAAE,GAAG,EAAE;YACR,MAAM,KAAK,CAAC;QACd,CAAC;KACF,CAAC,CAAC;AACL,CAAC;AAID,SAAgB,WAAW;IACzB,IAAI,QAAkB,CAAC;IACvB,IAAI;QACF,wEAAwE;QACxE,QAAQ,GAAG,OAAO,CAAC,UAAU,CAAC,CAAC;KAChC;IAAC,OAAO,KAAK,EAAE;QACd,QAAQ,GAAG,eAAe,CACxB,IAAI,mCAA2B,CAC7B,2FAA2F,EAC3F,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,UAAU,EAAE,CAC7C,CACF,CAAC;KACH;IACD,OAAO,QAAQ,CAAC;AAClB,CAAC;AAdD,kCAcC;AA0BD,SAAgB,cAAc;IAC5B,IAAI,SAAuE,CAAC;IAC5E,IAAI;QACF,SAAS,GAAG,OAAO,CAAC,kBAAkB,CAAC,CAAC;KACzC;IAAC,OAAO,KAAK,EAAE;QACd,SAAS,GAAG,eAAe,CACzB,IAAI,mCAA2B,CAC7B,4FAA4F,EAC5F,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,MAAM,EAAE,CACzC,CACF,CAAC;KACH;IAED,OAAO,SAAS,CAAC;AACnB,CAAC;AAdD,wCAcC;AAsBD,SAAgB,wBAAwB;IAGtC,IAAI;QACF,wEAAwE;QACxE,MAAM,kBAAkB,GAAG,OAAO,CAAC,+BAA+B,CAAC,CAAC;QACpE,OAAO,kBAAkB,CAAC;KAC3B;IAAC,OAAO,KAAK,EAAE;QACd,OAAO,eAAe,CACpB,IAAI,mCAA2B,CAC7B,4DAA4D;YAC1D,4EAA4E,EAC9E,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,+BAA+B,EAAE,CAClE,CACF,CAAC;KACH;AACH,CAAC;AAhBD,4DAgBC;AAOD,SAAgB,cAAc;IAC5B,IAAI;QACF,wEAAwE;QACxE,MAAM,kBAAkB,GAAG,OAAO,CAAC,cAAc,CAAC,CAAC;QACnD,OAAO,kBAAkB,CAAC;KAC3B;IAAC,OAAO,KAAK,EAAE;QACd,OAAO,eAAe,CACpB,IAAI,mCAA2B,CAC7B,2CAA2C;YACzC,4EAA4E,EAC9E,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,cAAc,EAAE,CACjD,CACF,CAAC;KACH;AACH,CAAC;AAdD,wCAcC;AAiBD,SAAgB,SAAS;IACvB,IAAI;QACF,wEAAwE;QACxE,MAAM,KAAK,GAAG,OAAO,CAAC,QAAQ,CAAC,CAAC;QAChC,OAAO,KAAK,CAAC;KACd;IAAC,OAAO,KAAK,EAAE;QACd,MAAM,YAAY,GAAG,IAAI,mCAA2B,CAClD,oFAAoF,EACpF,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,QAAQ,EAAE,CAC3C,CAAC;QACF,OAAO,EAAE,YAAY,EAAE,CAAC;KACzB;AACH,CAAC;AAZD,8BAYC;AAsBD,SAAgB,QAAQ;IACtB,IAAI;QACF,wEAAwE;QACxE,MAAM,KAAK,GAAG,OAAO,CAAC,OAAO,CAAC,CAAC;QAC/B,OAAO,KAAK,CAAC;KACd;IAAC,OAAO,KAAK,EAAE;QACd,MAAM,YAAY,GAAG,IAAI,mCAA2B,CAClD,yFAAyF,EACzF,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,OAAO,EAAE,CAC1C,CAAC;QACF,OAAO,EAAE,YAAY,EAAE,CAAC;KACzB;AACH,CAAC;AAZD,4BAYC;AA2CY,QAAA,IAAI,GAAyD,QAAQ,EAAE,CAAC;AAErF,SAAS,QAAQ;IACf,IAAI,IAA0D,CAAC;IAC/D,IAAI;QACF,IAAI,GAAG,OAAO,CAAC,MAAM,CAAC,CAAC;KACxB;IAAC,OAAO,KAAK,EAAE;QACd,IAAI,GAAG,eAAe,CACpB,IAAI,mCAA2B,CAC7B,kFAAkF,EAClF,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,MAAM,EAAE,CACzC,CACF,CAAC;KACH;IAED,OAAO,IAAI,CAAC;AACd,CAAC;AAED,yFAAyF;AACzF,SAAgB,0BAA0B;IAGxC,IAAI,uBAAuB,GAAG,IAAI,CAAC;IAEnC,IAAI;QACF,yFAAyF;QACzF,kGAAkG;QAClG,4GAA4G;QAC5G,uBAAuB,GAAG,OAAO,CAAC,2BAA2B,CAAC,CAAC;KAChE;IAAC,OAAO,KAAK,EAAE;QACd,MAAM,YAAY,GAAG,IAAI,mCAA2B,CAClD,sHAAsH,EACtH,EAAE,KAAK,EAAE,KAAK,EAAE,cAAc,EAAE,2BAA2B,EAAE,CAC9D,CAAC;QACF,OAAO,EAAE,YAAY,EAAE,CAAC;KACzB;IAED,OAAO,uBAAuB,CAAC;AACjC,CAAC;AAnBD,gEAmBC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/encrypter.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/encrypter.js new file mode 100644 index 000000000..a6163794e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/encrypter.js @@ -0,0 +1,114 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Encrypter = void 0; +const util_1 = require("util"); +const auto_encrypter_1 = require("./client-side-encryption/auto_encrypter"); +const constants_1 = require("./constants"); +const deps_1 = require("./deps"); +const error_1 = require("./error"); +const mongo_client_1 = require("./mongo_client"); +/** @internal */ +const kInternalClient = Symbol('internalClient'); +/** @internal */ +class Encrypter { + constructor(client, uri, options) { + if (typeof options.autoEncryption !== 'object') { + throw new error_1.MongoInvalidArgumentError('Option "autoEncryption" must be specified'); + } + // initialize to null, if we call getInternalClient, we may set this it is important to not overwrite those function calls. + this[kInternalClient] = null; + this.bypassAutoEncryption = !!options.autoEncryption.bypassAutoEncryption; + this.needsConnecting = false; + if (options.maxPoolSize === 0 && options.autoEncryption.keyVaultClient == null) { + options.autoEncryption.keyVaultClient = client; + } + else if (options.autoEncryption.keyVaultClient == null) { + options.autoEncryption.keyVaultClient = this.getInternalClient(client, uri, options); + } + if (this.bypassAutoEncryption) { + options.autoEncryption.metadataClient = undefined; + } + else if (options.maxPoolSize === 0) { + options.autoEncryption.metadataClient = client; + } + else { + options.autoEncryption.metadataClient = this.getInternalClient(client, uri, options); + } + if (options.proxyHost) { + options.autoEncryption.proxyOptions = { + proxyHost: options.proxyHost, + proxyPort: options.proxyPort, + proxyUsername: options.proxyUsername, + proxyPassword: options.proxyPassword + }; + } + this.autoEncrypter = new auto_encrypter_1.AutoEncrypter(client, options.autoEncryption); + } + getInternalClient(client, uri, options) { + // TODO(NODE-4144): Remove new variable for type narrowing + let internalClient = this[kInternalClient]; + if (internalClient == null) { + const clonedOptions = {}; + for (const key of [ + ...Object.getOwnPropertyNames(options), + ...Object.getOwnPropertySymbols(options) + ]) { + if (['autoEncryption', 'minPoolSize', 'servers', 'caseTranslate', 'dbName'].includes(key)) + continue; + Reflect.set(clonedOptions, key, Reflect.get(options, key)); + } + clonedOptions.minPoolSize = 0; + internalClient = new mongo_client_1.MongoClient(uri, clonedOptions); + this[kInternalClient] = internalClient; + for (const eventName of constants_1.MONGO_CLIENT_EVENTS) { + for (const listener of client.listeners(eventName)) { + internalClient.on(eventName, listener); + } + } + client.on('newListener', (eventName, listener) => { + internalClient?.on(eventName, listener); + }); + this.needsConnecting = true; + } + return internalClient; + } + async connectInternalClient() { + // TODO(NODE-4144): Remove new variable for type narrowing + const internalClient = this[kInternalClient]; + if (this.needsConnecting && internalClient != null) { + this.needsConnecting = false; + await internalClient.connect(); + } + } + closeCallback(client, force, callback) { + (0, util_1.callbackify)(this.close.bind(this))(client, force, callback); + } + async close(client, force) { + let error; + try { + await this.autoEncrypter.teardown(force); + } + catch (autoEncrypterError) { + error = autoEncrypterError; + } + const internalClient = this[kInternalClient]; + if (internalClient != null && client !== internalClient) { + return await internalClient.close(force); + } + if (error != null) { + throw error; + } + } + static checkForMongoCrypt() { + const mongodbClientEncryption = (0, deps_1.getMongoDBClientEncryption)(); + if ('kModuleError' in mongodbClientEncryption) { + throw new error_1.MongoMissingDependencyError('Auto-encryption requested, but the module is not installed. ' + + 'Please add `mongodb-client-encryption` as a dependency of your project', { + cause: mongodbClientEncryption['kModuleError'], + dependencyName: 'mongodb-client-encryption' + }); + } + } +} +exports.Encrypter = Encrypter; +//# sourceMappingURL=encrypter.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/encrypter.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/encrypter.js.map new file mode 100644 index 000000000..3de3d1392 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/encrypter.js.map @@ -0,0 +1 @@ +{"version":3,"file":"encrypter.js","sourceRoot":"","sources":["../src/encrypter.ts"],"names":[],"mappings":";;;AAAA,+BAAmC;AAEnC,4EAAoG;AACpG,2CAAkD;AAClD,iCAAoD;AACpD,mCAAiF;AACjF,iDAAsE;AAGtE,gBAAgB;AAChB,MAAM,eAAe,GAAG,MAAM,CAAC,gBAAgB,CAAC,CAAC;AAQjD,gBAAgB;AAChB,MAAa,SAAS;IAMpB,YAAY,MAAmB,EAAE,GAAW,EAAE,OAA2B;QACvE,IAAI,OAAO,OAAO,CAAC,cAAc,KAAK,QAAQ,EAAE;YAC9C,MAAM,IAAI,iCAAyB,CAAC,2CAA2C,CAAC,CAAC;SAClF;QACD,2HAA2H;QAC3H,IAAI,CAAC,eAAe,CAAC,GAAG,IAAI,CAAC;QAE7B,IAAI,CAAC,oBAAoB,GAAG,CAAC,CAAC,OAAO,CAAC,cAAc,CAAC,oBAAoB,CAAC;QAC1E,IAAI,CAAC,eAAe,GAAG,KAAK,CAAC;QAE7B,IAAI,OAAO,CAAC,WAAW,KAAK,CAAC,IAAI,OAAO,CAAC,cAAc,CAAC,cAAc,IAAI,IAAI,EAAE;YAC9E,OAAO,CAAC,cAAc,CAAC,cAAc,GAAG,MAAM,CAAC;SAChD;aAAM,IAAI,OAAO,CAAC,cAAc,CAAC,cAAc,IAAI,IAAI,EAAE;YACxD,OAAO,CAAC,cAAc,CAAC,cAAc,GAAG,IAAI,CAAC,iBAAiB,CAAC,MAAM,EAAE,GAAG,EAAE,OAAO,CAAC,CAAC;SACtF;QAED,IAAI,IAAI,CAAC,oBAAoB,EAAE;YAC7B,OAAO,CAAC,cAAc,CAAC,cAAc,GAAG,SAAS,CAAC;SACnD;aAAM,IAAI,OAAO,CAAC,WAAW,KAAK,CAAC,EAAE;YACpC,OAAO,CAAC,cAAc,CAAC,cAAc,GAAG,MAAM,CAAC;SAChD;aAAM;YACL,OAAO,CAAC,cAAc,CAAC,cAAc,GAAG,IAAI,CAAC,iBAAiB,CAAC,MAAM,EAAE,GAAG,EAAE,OAAO,CAAC,CAAC;SACtF;QAED,IAAI,OAAO,CAAC,SAAS,EAAE;YACrB,OAAO,CAAC,cAAc,CAAC,YAAY,GAAG;gBACpC,SAAS,EAAE,OAAO,CAAC,SAAS;gBAC5B,SAAS,EAAE,OAAO,CAAC,SAAS;gBAC5B,aAAa,EAAE,OAAO,CAAC,aAAa;gBACpC,aAAa,EAAE,OAAO,CAAC,aAAa;aACrC,CAAC;SACH;QAED,IAAI,CAAC,aAAa,GAAG,IAAI,8BAAa,CAAC,MAAM,EAAE,OAAO,CAAC,cAAc,CAAC,CAAC;IACzE,CAAC;IAED,iBAAiB,CAAC,MAAmB,EAAE,GAAW,EAAE,OAA2B;QAC7E,0DAA0D;QAC1D,IAAI,cAAc,GAAG,IAAI,CAAC,eAAe,CAAC,CAAC;QAC3C,IAAI,cAAc,IAAI,IAAI,EAAE;YAC1B,MAAM,aAAa,GAAuB,EAAE,CAAC;YAE7C,KAAK,MAAM,GAAG,IAAI;gBAChB,GAAG,MAAM,CAAC,mBAAmB,CAAC,OAAO,CAAC;gBACtC,GAAG,MAAM,CAAC,qBAAqB,CAAC,OAAO,CAAC;aAC7B,EAAE;gBACb,IAAI,CAAC,gBAAgB,EAAE,aAAa,EAAE,SAAS,EAAE,eAAe,EAAE,QAAQ,CAAC,CAAC,QAAQ,CAAC,GAAG,CAAC;oBACvF,SAAS;gBACX,OAAO,CAAC,GAAG,CAAC,aAAa,EAAE,GAAG,EAAE,OAAO,CAAC,GAAG,CAAC,OAAO,EAAE,GAAG,CAAC,CAAC,CAAC;aAC5D;YAED,aAAa,CAAC,WAAW,GAAG,CAAC,CAAC;YAE9B,cAAc,GAAG,IAAI,0BAAW,CAAC,GAAG,EAAE,aAAa,CAAC,CAAC;YACrD,IAAI,CAAC,eAAe,CAAC,GAAG,cAAc,CAAC;YAEvC,KAAK,MAAM,SAAS,IAAI,+BAAmB,EAAE;gBAC3C,KAAK,MAAM,QAAQ,IAAI,MAAM,CAAC,SAAS,CAAC,SAAS,CAAC,EAAE;oBAClD,cAAc,CAAC,EAAE,CAAC,SAAS,EAAE,QAAQ,CAAC,CAAC;iBACxC;aACF;YAED,MAAM,CAAC,EAAE,CAAC,aAAa,EAAE,CAAC,SAAS,EAAE,QAAQ,EAAE,EAAE;gBAC/C,cAAc,EAAE,EAAE,CAAC,SAAS,EAAE,QAAQ,CAAC,CAAC;YAC1C,CAAC,CAAC,CAAC;YAEH,IAAI,CAAC,eAAe,GAAG,IAAI,CAAC;SAC7B;QACD,OAAO,cAAc,CAAC;IACxB,CAAC;IAED,KAAK,CAAC,qBAAqB;QACzB,0DAA0D;QAC1D,MAAM,cAAc,GAAG,IAAI,CAAC,eAAe,CAAC,CAAC;QAC7C,IAAI,IAAI,CAAC,eAAe,IAAI,cAAc,IAAI,IAAI,EAAE;YAClD,IAAI,CAAC,eAAe,GAAG,KAAK,CAAC;YAC7B,MAAM,cAAc,CAAC,OAAO,EAAE,CAAC;SAChC;IACH,CAAC;IAED,aAAa,CAAC,MAAmB,EAAE,KAAc,EAAE,QAAwB;QACzE,IAAA,kBAAW,EAAC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,MAAM,EAAE,KAAK,EAAE,QAAQ,CAAC,CAAC;IAC9D,CAAC;IAED,KAAK,CAAC,KAAK,CAAC,MAAmB,EAAE,KAAc;QAC7C,IAAI,KAAK,CAAC;QACV,IAAI;YACF,MAAM,IAAI,CAAC,aAAa,CAAC,QAAQ,CAAC,KAAK,CAAC,CAAC;SAC1C;QAAC,OAAO,kBAAkB,EAAE;YAC3B,KAAK,GAAG,kBAAkB,CAAC;SAC5B;QACD,MAAM,cAAc,GAAG,IAAI,CAAC,eAAe,CAAC,CAAC;QAC7C,IAAI,cAAc,IAAI,IAAI,IAAI,MAAM,KAAK,cAAc,EAAE;YACvD,OAAO,MAAM,cAAc,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC;SAC1C;QACD,IAAI,KAAK,IAAI,IAAI,EAAE;YACjB,MAAM,KAAK,CAAC;SACb;IACH,CAAC;IAED,MAAM,CAAC,kBAAkB;QACvB,MAAM,uBAAuB,GAAG,IAAA,iCAA0B,GAAE,CAAC;QAC7D,IAAI,cAAc,IAAI,uBAAuB,EAAE;YAC7C,MAAM,IAAI,mCAA2B,CACnC,8DAA8D;gBAC5D,wEAAwE,EAC1E;gBACE,KAAK,EAAE,uBAAuB,CAAC,cAAc,CAAC;gBAC9C,cAAc,EAAE,2BAA2B;aAC5C,CACF,CAAC;SACH;IACH,CAAC;CACF;AAvHD,8BAuHC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/error.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/error.js new file mode 100644 index 000000000..8934a6991 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/error.js @@ -0,0 +1,1189 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.isResumableError = exports.isNetworkTimeoutError = exports.isSDAMUnrecoverableError = exports.isNodeShuttingDownError = exports.isRetryableReadError = exports.isRetryableWriteError = exports.needsRetryableWriteLabel = exports.MongoWriteConcernError = exports.MongoServerSelectionError = exports.MongoSystemError = exports.MongoMissingDependencyError = exports.MongoMissingCredentialsError = exports.MongoCompatibilityError = exports.MongoInvalidArgumentError = exports.MongoParseError = exports.MongoNetworkTimeoutError = exports.MongoNetworkError = exports.isNetworkErrorBeforeHandshake = exports.MongoTopologyClosedError = exports.MongoCursorExhaustedError = exports.MongoServerClosedError = exports.MongoCursorInUseError = exports.MongoUnexpectedServerResponseError = exports.MongoGridFSChunkError = exports.MongoGridFSStreamError = exports.MongoTailableCursorError = exports.MongoChangeStreamError = exports.MongoAzureError = exports.MongoAWSError = exports.MongoKerberosError = exports.MongoExpiredSessionError = exports.MongoTransactionError = exports.MongoNotConnectedError = exports.MongoDecompressionError = exports.MongoBatchReExecutionError = exports.MongoRuntimeError = exports.MongoAPIError = exports.MongoDriverError = exports.MongoServerError = exports.MongoError = exports.MongoErrorLabel = exports.GET_MORE_RESUMABLE_CODES = exports.MONGODB_ERROR_CODES = exports.NODE_IS_RECOVERING_ERROR_MESSAGE = exports.LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE = exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE = void 0; +/** @internal */ +const kErrorLabels = Symbol('errorLabels'); +/** + * @internal + * The legacy error message from the server that indicates the node is not a writable primary + * https://github.com/mongodb/specifications/blob/b07c26dc40d04ac20349f989db531c9845fdd755/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-writable-primary-and-node-is-recovering + */ +exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE = new RegExp('not master', 'i'); +/** + * @internal + * The legacy error message from the server that indicates the node is not a primary or secondary + * https://github.com/mongodb/specifications/blob/b07c26dc40d04ac20349f989db531c9845fdd755/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-writable-primary-and-node-is-recovering + */ +exports.LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE = new RegExp('not master or secondary', 'i'); +/** + * @internal + * The error message from the server that indicates the node is recovering + * https://github.com/mongodb/specifications/blob/b07c26dc40d04ac20349f989db531c9845fdd755/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-writable-primary-and-node-is-recovering + */ +exports.NODE_IS_RECOVERING_ERROR_MESSAGE = new RegExp('node is recovering', 'i'); +/** @internal MongoDB Error Codes */ +exports.MONGODB_ERROR_CODES = Object.freeze({ + HostUnreachable: 6, + HostNotFound: 7, + NetworkTimeout: 89, + ShutdownInProgress: 91, + PrimarySteppedDown: 189, + ExceededTimeLimit: 262, + SocketException: 9001, + NotWritablePrimary: 10107, + InterruptedAtShutdown: 11600, + InterruptedDueToReplStateChange: 11602, + NotPrimaryNoSecondaryOk: 13435, + NotPrimaryOrSecondary: 13436, + StaleShardVersion: 63, + StaleEpoch: 150, + StaleConfig: 13388, + RetryChangeStream: 234, + FailedToSatisfyReadPreference: 133, + CursorNotFound: 43, + LegacyNotPrimary: 10058, + WriteConcernFailed: 64, + NamespaceNotFound: 26, + IllegalOperation: 20, + MaxTimeMSExpired: 50, + UnknownReplWriteConcern: 79, + UnsatisfiableWriteConcern: 100, + Reauthenticate: 391 +}); +// From spec@https://github.com/mongodb/specifications/blob/f93d78191f3db2898a59013a7ed5650352ef6da8/source/change-streams/change-streams.rst#resumable-error +exports.GET_MORE_RESUMABLE_CODES = new Set([ + exports.MONGODB_ERROR_CODES.HostUnreachable, + exports.MONGODB_ERROR_CODES.HostNotFound, + exports.MONGODB_ERROR_CODES.NetworkTimeout, + exports.MONGODB_ERROR_CODES.ShutdownInProgress, + exports.MONGODB_ERROR_CODES.PrimarySteppedDown, + exports.MONGODB_ERROR_CODES.ExceededTimeLimit, + exports.MONGODB_ERROR_CODES.SocketException, + exports.MONGODB_ERROR_CODES.NotWritablePrimary, + exports.MONGODB_ERROR_CODES.InterruptedAtShutdown, + exports.MONGODB_ERROR_CODES.InterruptedDueToReplStateChange, + exports.MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk, + exports.MONGODB_ERROR_CODES.NotPrimaryOrSecondary, + exports.MONGODB_ERROR_CODES.StaleShardVersion, + exports.MONGODB_ERROR_CODES.StaleEpoch, + exports.MONGODB_ERROR_CODES.StaleConfig, + exports.MONGODB_ERROR_CODES.RetryChangeStream, + exports.MONGODB_ERROR_CODES.FailedToSatisfyReadPreference, + exports.MONGODB_ERROR_CODES.CursorNotFound +]); +/** @public */ +exports.MongoErrorLabel = Object.freeze({ + RetryableWriteError: 'RetryableWriteError', + TransientTransactionError: 'TransientTransactionError', + UnknownTransactionCommitResult: 'UnknownTransactionCommitResult', + ResumableChangeStreamError: 'ResumableChangeStreamError', + HandshakeError: 'HandshakeError', + ResetPool: 'ResetPool', + PoolRequstedRetry: 'PoolRequstedRetry', + InterruptInUseConnections: 'InterruptInUseConnections', + NoWritesPerformed: 'NoWritesPerformed' +}); +function isAggregateError(e) { + return e != null && typeof e === 'object' && 'errors' in e && Array.isArray(e.errors); +} +/** + * @public + * @category Error + * + * @privateRemarks + * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument + */ +class MongoError extends Error { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + this[kErrorLabels] = new Set(); + } + /** @internal */ + static buildErrorMessage(e) { + if (typeof e === 'string') { + return e; + } + if (isAggregateError(e) && e.message.length === 0) { + return e.errors.length === 0 + ? 'AggregateError has an empty errors array. Please check the `cause` property for more information.' + : e.errors.map(({ message }) => message).join(', '); + } + return e != null && typeof e === 'object' && 'message' in e && typeof e.message === 'string' + ? e.message + : 'empty error message'; + } + get name() { + return 'MongoError'; + } + /** Legacy name for server error responses */ + get errmsg() { + return this.message; + } + /** + * Checks the error to see if it has an error label + * + * @param label - The error label to check for + * @returns returns true if the error has the provided error label + */ + hasErrorLabel(label) { + return this[kErrorLabels].has(label); + } + addErrorLabel(label) { + this[kErrorLabels].add(label); + } + get errorLabels() { + return Array.from(this[kErrorLabels]); + } +} +exports.MongoError = MongoError; +/** + * An error coming from the mongo server + * + * @public + * @category Error + */ +class MongoServerError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message.message || message.errmsg || message.$err || 'n/a'); + if (message.errorLabels) { + this[kErrorLabels] = new Set(message.errorLabels); + } + this.errorResponse = message; + for (const name in message) { + if (name !== 'errorLabels' && + name !== 'errmsg' && + name !== 'message' && + name !== 'errorResponse') { + this[name] = message[name]; + } + } + } + get name() { + return 'MongoServerError'; + } +} +exports.MongoServerError = MongoServerError; +/** + * An error generated by the driver + * + * @public + * @category Error + */ +class MongoDriverError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + } + get name() { + return 'MongoDriverError'; + } +} +exports.MongoDriverError = MongoDriverError; +/** + * An error generated when the driver API is used incorrectly + * + * @privateRemarks + * Should **never** be directly instantiated + * + * @public + * @category Error + */ +class MongoAPIError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + } + get name() { + return 'MongoAPIError'; + } +} +exports.MongoAPIError = MongoAPIError; +/** + * An error generated when the driver encounters unexpected input + * or reaches an unexpected/invalid internal state + * + * @privateRemarks + * Should **never** be directly instantiated. + * + * @public + * @category Error + */ +class MongoRuntimeError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + } + get name() { + return 'MongoRuntimeError'; + } +} +exports.MongoRuntimeError = MongoRuntimeError; +/** + * An error generated when a batch command is re-executed after one of the commands in the batch + * has failed + * + * @public + * @category Error + */ +class MongoBatchReExecutionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'This batch has already been executed, create new batch to execute') { + super(message); + } + get name() { + return 'MongoBatchReExecutionError'; + } +} +exports.MongoBatchReExecutionError = MongoBatchReExecutionError; +/** + * An error generated when the driver fails to decompress + * data received from the server. + * + * @public + * @category Error + */ +class MongoDecompressionError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoDecompressionError'; + } +} +exports.MongoDecompressionError = MongoDecompressionError; +/** + * An error thrown when the user attempts to operate on a database or collection through a MongoClient + * that has not yet successfully called the "connect" method + * + * @public + * @category Error + */ +class MongoNotConnectedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoNotConnectedError'; + } +} +exports.MongoNotConnectedError = MongoNotConnectedError; +/** + * An error generated when the user makes a mistake in the usage of transactions. + * (e.g. attempting to commit a transaction with a readPreference other than primary) + * + * @public + * @category Error + */ +class MongoTransactionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoTransactionError'; + } +} +exports.MongoTransactionError = MongoTransactionError; +/** + * An error generated when the user attempts to operate + * on a session that has expired or has been closed. + * + * @public + * @category Error + */ +class MongoExpiredSessionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Cannot use a session that has ended') { + super(message); + } + get name() { + return 'MongoExpiredSessionError'; + } +} +exports.MongoExpiredSessionError = MongoExpiredSessionError; +/** + * A error generated when the user attempts to authenticate + * via Kerberos, but fails to connect to the Kerberos client. + * + * @public + * @category Error + */ +class MongoKerberosError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoKerberosError'; + } +} +exports.MongoKerberosError = MongoKerberosError; +/** + * A error generated when the user attempts to authenticate + * via AWS, but fails + * + * @public + * @category Error + */ +class MongoAWSError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + } + get name() { + return 'MongoAWSError'; + } +} +exports.MongoAWSError = MongoAWSError; +/** + * A error generated when the user attempts to authenticate + * via Azure, but fails. + * + * @public + * @category Error + */ +class MongoAzureError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoAzureError'; + } +} +exports.MongoAzureError = MongoAzureError; +/** + * An error generated when a ChangeStream operation fails to execute. + * + * @public + * @category Error + */ +class MongoChangeStreamError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoChangeStreamError'; + } +} +exports.MongoChangeStreamError = MongoChangeStreamError; +/** + * An error thrown when the user calls a function or method not supported on a tailable cursor + * + * @public + * @category Error + */ +class MongoTailableCursorError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Tailable cursor does not support this operation') { + super(message); + } + get name() { + return 'MongoTailableCursorError'; + } +} +exports.MongoTailableCursorError = MongoTailableCursorError; +/** An error generated when a GridFSStream operation fails to execute. + * + * @public + * @category Error + */ +class MongoGridFSStreamError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoGridFSStreamError'; + } +} +exports.MongoGridFSStreamError = MongoGridFSStreamError; +/** + * An error generated when a malformed or invalid chunk is + * encountered when reading from a GridFSStream. + * + * @public + * @category Error + */ +class MongoGridFSChunkError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoGridFSChunkError'; + } +} +exports.MongoGridFSChunkError = MongoGridFSChunkError; +/** + * An error generated when a **parsable** unexpected response comes from the server. + * This is generally an error where the driver in a state expecting a certain behavior to occur in + * the next message from MongoDB but it receives something else. + * This error **does not** represent an issue with wire message formatting. + * + * #### Example + * When an operation fails, it is the driver's job to retry it. It must perform serverSelection + * again to make sure that it attempts the operation against a server in a good state. If server + * selection returns a server that does not support retryable operations, this error is used. + * This scenario is unlikely as retryable support would also have been determined on the first attempt + * but it is possible the state change could report a selectable server that does not support retries. + * + * @public + * @category Error + */ +class MongoUnexpectedServerResponseError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoUnexpectedServerResponseError'; + } +} +exports.MongoUnexpectedServerResponseError = MongoUnexpectedServerResponseError; +/** + * An error thrown when the user attempts to add options to a cursor that has already been + * initialized + * + * @public + * @category Error + */ +class MongoCursorInUseError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Cursor is already initialized') { + super(message); + } + get name() { + return 'MongoCursorInUseError'; + } +} +exports.MongoCursorInUseError = MongoCursorInUseError; +/** + * An error generated when an attempt is made to operate + * on a closed/closing server. + * + * @public + * @category Error + */ +class MongoServerClosedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Server is closed') { + super(message); + } + get name() { + return 'MongoServerClosedError'; + } +} +exports.MongoServerClosedError = MongoServerClosedError; +/** + * An error thrown when an attempt is made to read from a cursor that has been exhausted + * + * @public + * @category Error + */ +class MongoCursorExhaustedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message || 'Cursor is exhausted'); + } + get name() { + return 'MongoCursorExhaustedError'; + } +} +exports.MongoCursorExhaustedError = MongoCursorExhaustedError; +/** + * An error generated when an attempt is made to operate on a + * dropped, or otherwise unavailable, database. + * + * @public + * @category Error + */ +class MongoTopologyClosedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Topology is closed') { + super(message); + } + get name() { + return 'MongoTopologyClosedError'; + } +} +exports.MongoTopologyClosedError = MongoTopologyClosedError; +/** @internal */ +const kBeforeHandshake = Symbol('beforeHandshake'); +function isNetworkErrorBeforeHandshake(err) { + return err[kBeforeHandshake] === true; +} +exports.isNetworkErrorBeforeHandshake = isNetworkErrorBeforeHandshake; +/** + * An error indicating an issue with the network, including TCP errors and timeouts. + * @public + * @category Error + */ +class MongoNetworkError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, { cause: options?.cause }); + if (options && typeof options.beforeHandshake === 'boolean') { + this[kBeforeHandshake] = options.beforeHandshake; + } + } + get name() { + return 'MongoNetworkError'; + } +} +exports.MongoNetworkError = MongoNetworkError; +/** + * An error indicating a network timeout occurred + * @public + * @category Error + * + * @privateRemarks + * mongodb-client-encryption has a dependency on this error with an instanceof check + */ +class MongoNetworkTimeoutError extends MongoNetworkError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + } + get name() { + return 'MongoNetworkTimeoutError'; + } +} +exports.MongoNetworkTimeoutError = MongoNetworkTimeoutError; +/** + * An error used when attempting to parse a value (like a connection string) + * @public + * @category Error + */ +class MongoParseError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoParseError'; + } +} +exports.MongoParseError = MongoParseError; +/** + * An error generated when the user supplies malformed or unexpected arguments + * or when a required argument or field is not provided. + * + * + * @public + * @category Error + */ +class MongoInvalidArgumentError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoInvalidArgumentError'; + } +} +exports.MongoInvalidArgumentError = MongoInvalidArgumentError; +/** + * An error generated when a feature that is not enabled or allowed for the current server + * configuration is used + * + * + * @public + * @category Error + */ +class MongoCompatibilityError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoCompatibilityError'; + } +} +exports.MongoCompatibilityError = MongoCompatibilityError; +/** + * An error generated when the user fails to provide authentication credentials before attempting + * to connect to a mongo server instance. + * + * + * @public + * @category Error + */ +class MongoMissingCredentialsError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message) { + super(message); + } + get name() { + return 'MongoMissingCredentialsError'; + } +} +exports.MongoMissingCredentialsError = MongoMissingCredentialsError; +/** + * An error generated when a required module or dependency is not present in the local environment + * + * @public + * @category Error + */ +class MongoMissingDependencyError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, options) { + super(message, options); + this.dependencyName = options.dependencyName; + } + get name() { + return 'MongoMissingDependencyError'; + } +} +exports.MongoMissingDependencyError = MongoMissingDependencyError; +/** + * An error signifying a general system issue + * @public + * @category Error + */ +class MongoSystemError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, reason) { + if (reason && reason.error) { + super(MongoError.buildErrorMessage(reason.error.message || reason.error), { + cause: reason.error + }); + } + else { + super(message); + } + if (reason) { + this.reason = reason; + } + this.code = reason.error?.code; + } + get name() { + return 'MongoSystemError'; + } +} +exports.MongoSystemError = MongoSystemError; +/** + * An error signifying a client-side server selection error + * @public + * @category Error + */ +class MongoServerSelectionError extends MongoSystemError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, reason) { + super(message, reason); + } + get name() { + return 'MongoServerSelectionError'; + } +} +exports.MongoServerSelectionError = MongoServerSelectionError; +function makeWriteConcernResultObject(input) { + const output = Object.assign({}, input); + if (output.ok === 0) { + output.ok = 1; + delete output.errmsg; + delete output.code; + delete output.codeName; + } + return output; +} +/** + * An error thrown when the server reports a writeConcernError + * @public + * @category Error + */ +class MongoWriteConcernError extends MongoServerError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message, result) { + if (result && Array.isArray(result.errorLabels)) { + message.errorLabels = result.errorLabels; + } + super(message); + this.errInfo = message.errInfo; + if (result != null) { + this.result = makeWriteConcernResultObject(result); + } + } + get name() { + return 'MongoWriteConcernError'; + } +} +exports.MongoWriteConcernError = MongoWriteConcernError; +// https://github.com/mongodb/specifications/blob/master/source/retryable-reads/retryable-reads.rst#retryable-error +const RETRYABLE_READ_ERROR_CODES = new Set([ + exports.MONGODB_ERROR_CODES.HostUnreachable, + exports.MONGODB_ERROR_CODES.HostNotFound, + exports.MONGODB_ERROR_CODES.NetworkTimeout, + exports.MONGODB_ERROR_CODES.ShutdownInProgress, + exports.MONGODB_ERROR_CODES.PrimarySteppedDown, + exports.MONGODB_ERROR_CODES.SocketException, + exports.MONGODB_ERROR_CODES.NotWritablePrimary, + exports.MONGODB_ERROR_CODES.InterruptedAtShutdown, + exports.MONGODB_ERROR_CODES.InterruptedDueToReplStateChange, + exports.MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk, + exports.MONGODB_ERROR_CODES.NotPrimaryOrSecondary, + exports.MONGODB_ERROR_CODES.ExceededTimeLimit +]); +// see: https://github.com/mongodb/specifications/blob/master/source/retryable-writes/retryable-writes.rst#terms +const RETRYABLE_WRITE_ERROR_CODES = RETRYABLE_READ_ERROR_CODES; +function needsRetryableWriteLabel(error, maxWireVersion) { + // pre-4.4 server, then the driver adds an error label for every valid case + // execute operation will only inspect the label, code/message logic is handled here + if (error instanceof MongoNetworkError) { + return true; + } + if (error instanceof MongoError) { + if ((maxWireVersion >= 9 || isRetryableWriteError(error)) && + !error.hasErrorLabel(exports.MongoErrorLabel.HandshakeError)) { + // If we already have the error label no need to add it again. 4.4+ servers add the label. + // In the case where we have a handshake error, need to fall down to the logic checking + // the codes. + return false; + } + } + if (error instanceof MongoWriteConcernError) { + return RETRYABLE_WRITE_ERROR_CODES.has(error.result?.code ?? error.code ?? 0); + } + if (error instanceof MongoError && typeof error.code === 'number') { + return RETRYABLE_WRITE_ERROR_CODES.has(error.code); + } + const isNotWritablePrimaryError = exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message); + if (isNotWritablePrimaryError) { + return true; + } + const isNodeIsRecoveringError = exports.NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message); + if (isNodeIsRecoveringError) { + return true; + } + return false; +} +exports.needsRetryableWriteLabel = needsRetryableWriteLabel; +function isRetryableWriteError(error) { + return (error.hasErrorLabel(exports.MongoErrorLabel.RetryableWriteError) || + error.hasErrorLabel(exports.MongoErrorLabel.PoolRequstedRetry)); +} +exports.isRetryableWriteError = isRetryableWriteError; +/** Determines whether an error is something the driver should attempt to retry */ +function isRetryableReadError(error) { + const hasRetryableErrorCode = typeof error.code === 'number' ? RETRYABLE_READ_ERROR_CODES.has(error.code) : false; + if (hasRetryableErrorCode) { + return true; + } + if (error instanceof MongoNetworkError) { + return true; + } + const isNotWritablePrimaryError = exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message); + if (isNotWritablePrimaryError) { + return true; + } + const isNodeIsRecoveringError = exports.NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message); + if (isNodeIsRecoveringError) { + return true; + } + return false; +} +exports.isRetryableReadError = isRetryableReadError; +const SDAM_RECOVERING_CODES = new Set([ + exports.MONGODB_ERROR_CODES.ShutdownInProgress, + exports.MONGODB_ERROR_CODES.PrimarySteppedDown, + exports.MONGODB_ERROR_CODES.InterruptedAtShutdown, + exports.MONGODB_ERROR_CODES.InterruptedDueToReplStateChange, + exports.MONGODB_ERROR_CODES.NotPrimaryOrSecondary +]); +const SDAM_NOT_PRIMARY_CODES = new Set([ + exports.MONGODB_ERROR_CODES.NotWritablePrimary, + exports.MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk, + exports.MONGODB_ERROR_CODES.LegacyNotPrimary +]); +const SDAM_NODE_SHUTTING_DOWN_ERROR_CODES = new Set([ + exports.MONGODB_ERROR_CODES.InterruptedAtShutdown, + exports.MONGODB_ERROR_CODES.ShutdownInProgress +]); +function isRecoveringError(err) { + if (typeof err.code === 'number') { + // If any error code exists, we ignore the error.message + return SDAM_RECOVERING_CODES.has(err.code); + } + return (exports.LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE.test(err.message) || + exports.NODE_IS_RECOVERING_ERROR_MESSAGE.test(err.message)); +} +function isNotWritablePrimaryError(err) { + if (typeof err.code === 'number') { + // If any error code exists, we ignore the error.message + return SDAM_NOT_PRIMARY_CODES.has(err.code); + } + if (isRecoveringError(err)) { + return false; + } + return exports.LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(err.message); +} +function isNodeShuttingDownError(err) { + return !!(typeof err.code === 'number' && SDAM_NODE_SHUTTING_DOWN_ERROR_CODES.has(err.code)); +} +exports.isNodeShuttingDownError = isNodeShuttingDownError; +/** + * Determines whether SDAM can recover from a given error. If it cannot + * then the pool will be cleared, and server state will completely reset + * locally. + * + * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-master-and-node-is-recovering + */ +function isSDAMUnrecoverableError(error) { + // NOTE: null check is here for a strictly pre-CMAP world, a timeout or + // close event are considered unrecoverable + if (error instanceof MongoParseError || error == null) { + return true; + } + return isRecoveringError(error) || isNotWritablePrimaryError(error); +} +exports.isSDAMUnrecoverableError = isSDAMUnrecoverableError; +function isNetworkTimeoutError(err) { + return !!(err instanceof MongoNetworkError && err.message.match(/timed out/)); +} +exports.isNetworkTimeoutError = isNetworkTimeoutError; +function isResumableError(error, wireVersion) { + if (error == null || !(error instanceof MongoError)) { + return false; + } + if (error instanceof MongoNetworkError) { + return true; + } + if (wireVersion != null && wireVersion >= 9) { + // DRIVERS-1308: For 4.4 drivers running against 4.4 servers, drivers will add a special case to treat the CursorNotFound error code as resumable + if (error.code === exports.MONGODB_ERROR_CODES.CursorNotFound) { + return true; + } + return error.hasErrorLabel(exports.MongoErrorLabel.ResumableChangeStreamError); + } + if (typeof error.code === 'number') { + return exports.GET_MORE_RESUMABLE_CODES.has(error.code); + } + return false; +} +exports.isResumableError = isResumableError; +//# sourceMappingURL=error.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/error.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/error.js.map new file mode 100644 index 000000000..874b88404 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/error.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/explain.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/explain.js new file mode 100644 index 000000000..4fb841e98 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/explain.js @@ -0,0 +1,35 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Explain = exports.ExplainVerbosity = void 0; +const error_1 = require("./error"); +/** @public */ +exports.ExplainVerbosity = Object.freeze({ + queryPlanner: 'queryPlanner', + queryPlannerExtended: 'queryPlannerExtended', + executionStats: 'executionStats', + allPlansExecution: 'allPlansExecution' +}); +/** @internal */ +class Explain { + constructor(verbosity) { + if (typeof verbosity === 'boolean') { + this.verbosity = verbosity + ? exports.ExplainVerbosity.allPlansExecution + : exports.ExplainVerbosity.queryPlanner; + } + else { + this.verbosity = verbosity; + } + } + static fromOptions(options) { + if (options?.explain == null) + return; + const explain = options.explain; + if (typeof explain === 'boolean' || typeof explain === 'string') { + return new Explain(explain); + } + throw new error_1.MongoInvalidArgumentError('Field "explain" must be a string or a boolean'); + } +} +exports.Explain = Explain; +//# sourceMappingURL=explain.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/explain.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/explain.js.map new file mode 100644 index 000000000..8b114f117 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/explain.js.map @@ -0,0 +1 @@ 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b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/download.js new file mode 100644 index 000000000..fa282f48b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/download.js @@ -0,0 +1,280 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.GridFSBucketReadStream = void 0; +const stream_1 = require("stream"); +const error_1 = require("../error"); +/** + * A readable stream that enables you to read buffers from GridFS. + * + * Do not instantiate this class directly. Use `openDownloadStream()` instead. + * @public + */ +class GridFSBucketReadStream extends stream_1.Readable { + /** + * @param chunks - Handle for chunks collection + * @param files - Handle for files collection + * @param readPreference - The read preference to use + * @param filter - The filter to use to find the file document + * @internal + */ + constructor(chunks, files, readPreference, filter, options) { + super({ emitClose: true }); + this.s = { + bytesToTrim: 0, + bytesToSkip: 0, + bytesRead: 0, + chunks, + expected: 0, + files, + filter, + init: false, + expectedEnd: 0, + options: { + start: 0, + end: 0, + ...options + }, + readPreference + }; + } + /** + * Reads from the cursor and pushes to the stream. + * Private Impl, do not call directly + * @internal + */ + _read() { + if (this.destroyed) + return; + waitForFile(this, () => doRead(this)); + } + /** + * Sets the 0-based offset in bytes to start streaming from. Throws + * an error if this stream has entered flowing mode + * (e.g. if you've already called `on('data')`) + * + * @param start - 0-based offset in bytes to start streaming from + */ + start(start = 0) { + throwIfInitialized(this); + this.s.options.start = start; + return this; + } + /** + * Sets the 0-based offset in bytes to start streaming from. Throws + * an error if this stream has entered flowing mode + * (e.g. if you've already called `on('data')`) + * + * @param end - Offset in bytes to stop reading at + */ + end(end = 0) { + throwIfInitialized(this); + this.s.options.end = end; + return this; + } + /** + * Marks this stream as aborted (will never push another `data` event) + * and kills the underlying cursor. Will emit the 'end' event, and then + * the 'close' event once the cursor is successfully killed. + */ + async abort() { + this.push(null); + this.destroy(); + await this.s.cursor?.close(); + } +} +/** + * Fires when the stream loaded the file document corresponding to the provided id. + * @event + */ +GridFSBucketReadStream.FILE = 'file'; +exports.GridFSBucketReadStream = GridFSBucketReadStream; +function throwIfInitialized(stream) { + if (stream.s.init) { + throw new error_1.MongoGridFSStreamError('Options cannot be changed after the stream is initialized'); + } +} +function doRead(stream) { + if (stream.destroyed) + return; + if (!stream.s.cursor) + return; + if (!stream.s.file) + return; + const handleReadResult = (doc) => { + if (stream.destroyed) + return; + if (!doc) { + stream.push(null); + // eslint-disable-next-line github/no-then + stream.s.cursor?.close().then(undefined, error => stream.destroy(error)); + return; + } + if (!stream.s.file) + return; + const bytesRemaining = stream.s.file.length - stream.s.bytesRead; + const expectedN = stream.s.expected++; + const expectedLength = Math.min(stream.s.file.chunkSize, bytesRemaining); + if (doc.n > expectedN) { + return stream.destroy(new error_1.MongoGridFSChunkError(`ChunkIsMissing: Got unexpected n: ${doc.n}, expected: ${expectedN}`)); + } + if (doc.n < expectedN) { + return stream.destroy(new error_1.MongoGridFSChunkError(`ExtraChunk: Got unexpected n: ${doc.n}, expected: ${expectedN}`)); + } + let buf = Buffer.isBuffer(doc.data) ? doc.data : doc.data.buffer; + if (buf.byteLength !== expectedLength) { + if (bytesRemaining <= 0) { + return stream.destroy(new error_1.MongoGridFSChunkError(`ExtraChunk: Got unexpected n: ${doc.n}, expected file length ${stream.s.file.length} bytes but already read ${stream.s.bytesRead} bytes`)); + } + return stream.destroy(new error_1.MongoGridFSChunkError(`ChunkIsWrongSize: Got unexpected length: ${buf.byteLength}, expected: ${expectedLength}`)); + } + stream.s.bytesRead += buf.byteLength; + if (buf.byteLength === 0) { + return stream.push(null); + } + let sliceStart = null; + let sliceEnd = null; + if (stream.s.bytesToSkip != null) { + sliceStart = stream.s.bytesToSkip; + stream.s.bytesToSkip = 0; + } + const atEndOfStream = expectedN === stream.s.expectedEnd - 1; + const bytesLeftToRead = stream.s.options.end - stream.s.bytesToSkip; + if (atEndOfStream && stream.s.bytesToTrim != null) { + sliceEnd = stream.s.file.chunkSize - stream.s.bytesToTrim; + } + else if (stream.s.options.end && bytesLeftToRead < doc.data.byteLength) { + sliceEnd = bytesLeftToRead; + } + if (sliceStart != null || sliceEnd != null) { + buf = buf.slice(sliceStart || 0, sliceEnd || buf.byteLength); + } + stream.push(buf); + return; + }; + // eslint-disable-next-line github/no-then + stream.s.cursor.next().then(handleReadResult, error => { + if (stream.destroyed) + return; + stream.destroy(error); + }); +} +function init(stream) { + const findOneOptions = {}; + if (stream.s.readPreference) { + findOneOptions.readPreference = stream.s.readPreference; + } + if (stream.s.options && stream.s.options.sort) { + findOneOptions.sort = stream.s.options.sort; + } + if (stream.s.options && stream.s.options.skip) { + findOneOptions.skip = stream.s.options.skip; + } + const handleReadResult = (doc) => { + if (stream.destroyed) + return; + if (!doc) { + const identifier = stream.s.filter._id + ? stream.s.filter._id.toString() + : stream.s.filter.filename; + const errmsg = `FileNotFound: file ${identifier} was not found`; + // TODO(NODE-3483) + const err = new error_1.MongoRuntimeError(errmsg); + err.code = 'ENOENT'; // TODO: NODE-3338 set property as part of constructor + return stream.destroy(err); + } + // If document is empty, kill the stream immediately and don't + // execute any reads + if (doc.length <= 0) { + stream.push(null); + return; + } + if (stream.destroyed) { + // If user destroys the stream before we have a cursor, wait + // until the query is done to say we're 'closed' because we can't + // cancel a query. + stream.destroy(); + return; + } + try { + stream.s.bytesToSkip = handleStartOption(stream, doc, stream.s.options); + } + catch (error) { + return stream.destroy(error); + } + const filter = { files_id: doc._id }; + // Currently (MongoDB 3.4.4) skip function does not support the index, + // it needs to retrieve all the documents first and then skip them. (CS-25811) + // As work around we use $gte on the "n" field. + if (stream.s.options && stream.s.options.start != null) { + const skip = Math.floor(stream.s.options.start / doc.chunkSize); + if (skip > 0) { + filter['n'] = { $gte: skip }; + } + } + stream.s.cursor = stream.s.chunks.find(filter).sort({ n: 1 }); + if (stream.s.readPreference) { + stream.s.cursor.withReadPreference(stream.s.readPreference); + } + stream.s.expectedEnd = Math.ceil(doc.length / doc.chunkSize); + stream.s.file = doc; + try { + stream.s.bytesToTrim = handleEndOption(stream, doc, stream.s.cursor, stream.s.options); + } + catch (error) { + return stream.destroy(error); + } + stream.emit(GridFSBucketReadStream.FILE, doc); + return; + }; + // eslint-disable-next-line github/no-then + stream.s.files.findOne(stream.s.filter, findOneOptions).then(handleReadResult, error => { + if (stream.destroyed) + return; + stream.destroy(error); + }); +} +function waitForFile(stream, callback) { + if (stream.s.file) { + return callback(); + } + if (!stream.s.init) { + init(stream); + stream.s.init = true; + } + stream.once('file', () => { + callback(); + }); +} +function handleStartOption(stream, doc, options) { + if (options && options.start != null) { + if (options.start > doc.length) { + throw new error_1.MongoInvalidArgumentError(`Stream start (${options.start}) must not be more than the length of the file (${doc.length})`); + } + if (options.start < 0) { + throw new error_1.MongoInvalidArgumentError(`Stream start (${options.start}) must not be negative`); + } + if (options.end != null && options.end < options.start) { + throw new error_1.MongoInvalidArgumentError(`Stream start (${options.start}) must not be greater than stream end (${options.end})`); + } + stream.s.bytesRead = Math.floor(options.start / doc.chunkSize) * doc.chunkSize; + stream.s.expected = Math.floor(options.start / doc.chunkSize); + return options.start - stream.s.bytesRead; + } + throw new error_1.MongoInvalidArgumentError('Start option must be defined'); +} +function handleEndOption(stream, doc, cursor, options) { + if (options && options.end != null) { + if (options.end > doc.length) { + throw new error_1.MongoInvalidArgumentError(`Stream end (${options.end}) must not be more than the length of the file (${doc.length})`); + } + if (options.start == null || options.start < 0) { + throw new error_1.MongoInvalidArgumentError(`Stream end (${options.end}) must not be negative`); + } + const start = options.start != null ? Math.floor(options.start / doc.chunkSize) : 0; + cursor.limit(Math.ceil(options.end / doc.chunkSize) - start); + stream.s.expectedEnd = Math.ceil(options.end / doc.chunkSize); + return Math.ceil(options.end / doc.chunkSize) * doc.chunkSize - options.end; + } + throw new error_1.MongoInvalidArgumentError('End option must be defined'); +} +//# sourceMappingURL=download.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/download.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/download.js.map new file mode 100644 index 000000000..669ae2cd4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/download.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/index.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/index.js new file mode 100644 index 000000000..5b42c2a38 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/index.js @@ -0,0 +1,128 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.GridFSBucket = void 0; +const error_1 = require("../error"); +const mongo_types_1 = require("../mongo_types"); +const write_concern_1 = require("../write_concern"); +const download_1 = require("./download"); +const upload_1 = require("./upload"); +const DEFAULT_GRIDFS_BUCKET_OPTIONS = { + bucketName: 'fs', + chunkSizeBytes: 255 * 1024 +}; +/** + * Constructor for a streaming GridFS interface + * @public + */ +class GridFSBucket extends mongo_types_1.TypedEventEmitter { + constructor(db, options) { + super(); + this.setMaxListeners(0); + const privateOptions = { + ...DEFAULT_GRIDFS_BUCKET_OPTIONS, + ...options, + writeConcern: write_concern_1.WriteConcern.fromOptions(options) + }; + this.s = { + db, + options: privateOptions, + _chunksCollection: db.collection(privateOptions.bucketName + '.chunks'), + _filesCollection: db.collection(privateOptions.bucketName + '.files'), + checkedIndexes: false, + calledOpenUploadStream: false + }; + } + /** + * Returns a writable stream (GridFSBucketWriteStream) for writing + * buffers to GridFS. The stream's 'id' property contains the resulting + * file's id. + * + * @param filename - The value of the 'filename' key in the files doc + * @param options - Optional settings. + */ + openUploadStream(filename, options) { + return new upload_1.GridFSBucketWriteStream(this, filename, options); + } + /** + * Returns a writable stream (GridFSBucketWriteStream) for writing + * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting + * file's id. + */ + openUploadStreamWithId(id, filename, options) { + return new upload_1.GridFSBucketWriteStream(this, filename, { ...options, id }); + } + /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */ + openDownloadStream(id, options) { + return new download_1.GridFSBucketReadStream(this.s._chunksCollection, this.s._filesCollection, this.s.options.readPreference, { _id: id }, options); + } + /** + * Deletes a file with the given id + * + * @param id - The id of the file doc + */ + async delete(id) { + const { deletedCount } = await this.s._filesCollection.deleteOne({ _id: id }); + // Delete orphaned chunks before returning FileNotFound + await this.s._chunksCollection.deleteMany({ files_id: id }); + if (deletedCount === 0) { + // TODO(NODE-3483): Replace with more appropriate error + // Consider creating new error MongoGridFSFileNotFoundError + throw new error_1.MongoRuntimeError(`File not found for id ${id}`); + } + } + /** Convenience wrapper around find on the files collection */ + find(filter = {}, options = {}) { + return this.s._filesCollection.find(filter, options); + } + /** + * Returns a readable stream (GridFSBucketReadStream) for streaming the + * file with the given name from GridFS. If there are multiple files with + * the same name, this will stream the most recent file with the given name + * (as determined by the `uploadDate` field). You can set the `revision` + * option to change this behavior. + */ + openDownloadStreamByName(filename, options) { + let sort = { uploadDate: -1 }; + let skip = undefined; + if (options && options.revision != null) { + if (options.revision >= 0) { + sort = { uploadDate: 1 }; + skip = options.revision; + } + else { + skip = -options.revision - 1; + } + } + return new download_1.GridFSBucketReadStream(this.s._chunksCollection, this.s._filesCollection, this.s.options.readPreference, { filename }, { ...options, sort, skip }); + } + /** + * Renames the file with the given _id to the given string + * + * @param id - the id of the file to rename + * @param filename - new name for the file + */ + async rename(id, filename) { + const filter = { _id: id }; + const update = { $set: { filename } }; + const { matchedCount } = await this.s._filesCollection.updateOne(filter, update); + if (matchedCount === 0) { + throw new error_1.MongoRuntimeError(`File with id ${id} not found`); + } + } + /** Removes this bucket's files collection, followed by its chunks collection. */ + async drop() { + await this.s._filesCollection.drop(); + await this.s._chunksCollection.drop(); + } +} +/** + * When the first call to openUploadStream is made, the upload stream will + * check to see if it needs to create the proper indexes on the chunks and + * files collections. This event is fired either when 1) it determines that + * no index creation is necessary, 2) when it successfully creates the + * necessary indexes. + * @event + */ +GridFSBucket.INDEX = 'index'; +exports.GridFSBucket = GridFSBucket; +//# sourceMappingURL=index.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/index.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/index.js.map new file mode 100644 index 000000000..28cd4baa4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/index.js.map @@ -0,0 +1 @@ +{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/gridfs/index.ts"],"names":[],"mappings":";;;AAIA,oCAA6C;AAC7C,gDAAgE;AAGhE,oDAA0E;AAE1E,yCAKoB;AACpB,qCAIkB;AAElB,MAAM,6BAA6B,GAG/B;IACF,UAAU,EAAE,IAAI;IAChB,cAAc,EAAE,GAAG,GAAG,IAAI;CAC3B,CAAC;AAkCF;;;GAGG;AACH,MAAa,YAAa,SAAQ,+BAAqC;IAcrE,YAAY,EAAM,EAAE,OAA6B;QAC/C,KAAK,EAAE,CAAC;QACR,IAAI,CAAC,eAAe,CAAC,CAAC,CAAC,CAAC;QACxB,MAAM,cAAc,GAAG;YACrB,GAAG,6BAA6B;YAChC,GAAG,OAAO;YACV,YAAY,EAAE,4BAAY,CAAC,WAAW,CAAC,OAAO,CAAC;SAChD,CAAC;QACF,IAAI,CAAC,CAAC,GAAG;YACP,EAAE;YACF,OAAO,EAAE,cAAc;YACvB,iBAAiB,EAAE,EAAE,CAAC,UAAU,CAAc,cAAc,CAAC,UAAU,GAAG,SAAS,CAAC;YACpF,gBAAgB,EAAE,EAAE,CAAC,UAAU,CAAa,cAAc,CAAC,UAAU,GAAG,QAAQ,CAAC;YACjF,cAAc,EAAE,KAAK;YACrB,sBAAsB,EAAE,KAAK;SAC9B,CAAC;IACJ,CAAC;IAED;;;;;;;OAOG;IAEH,gBAAgB,CACd,QAAgB,EAChB,OAAwC;QAExC,OAAO,IAAI,gCAAuB,CAAC,IAAI,EAAE,QAAQ,EAAE,OAAO,CAAC,CAAC;IAC9D,CAAC;IAED;;;;OAIG;IACH,sBAAsB,CACpB,EAAY,EACZ,QAAgB,EAChB,OAAwC;QAExC,OAAO,IAAI,gCAAuB,CAAC,IAAI,EAAE,QAAQ,EAAE,EAAE,GAAG,OAAO,EAAE,EAAE,EAAE,CAAC,CAAC;IACzE,CAAC;IAED,8FAA8F;IAC9F,kBAAkB,CAChB,EAAY,EACZ,OAAuC;QAEvC,OAAO,IAAI,iCAAsB,CAC/B,IAAI,CAAC,CAAC,CAAC,iBAAiB,EACxB,IAAI,CAAC,CAAC,CAAC,gBAAgB,EACvB,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,cAAc,EAC7B,EAAE,GAAG,EAAE,EAAE,EAAE,EACX,OAAO,CACR,CAAC;IACJ,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,MAAM,CAAC,EAAY;QACvB,MAAM,EAAE,YAAY,EAAE,GAAG,MAAM,IAAI,CAAC,CAAC,CAAC,gBAAgB,CAAC,SAAS,CAAC,EAAE,GAAG,EAAE,EAAE,EAAE,CAAC,CAAC;QAE9E,uDAAuD;QACvD,MAAM,IAAI,CAAC,CAAC,CAAC,iBAAiB,CAAC,UAAU,CAAC,EAAE,QAAQ,EAAE,EAAE,EAAE,CAAC,CAAC;QAE5D,IAAI,YAAY,KAAK,CAAC,EAAE;YACtB,uDAAuD;YACvD,2DAA2D;YAC3D,MAAM,IAAI,yBAAiB,CAAC,yBAAyB,EAAE,EAAE,CAAC,CAAC;SAC5D;IACH,CAAC;IAED,8DAA8D;IAC9D,IAAI,CAAC,SAA6B,EAAE,EAAE,UAAuB,EAAE;QAC7D,OAAO,IAAI,CAAC,CAAC,CAAC,gBAAgB,CAAC,IAAI,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC;IACvD,CAAC;IAED;;;;;;OAMG;IACH,wBAAwB,CACtB,QAAgB,EAChB,OAAmD;QAEnD,IAAI,IAAI,GAAS,EAAE,UAAU,EAAE,CAAC,CAAC,EAAE,CAAC;QACpC,IAAI,IAAI,GAAG,SAAS,CAAC;QACrB,IAAI,OAAO,IAAI,OAAO,CAAC,QAAQ,IAAI,IAAI,EAAE;YACvC,IAAI,OAAO,CAAC,QAAQ,IAAI,CAAC,EAAE;gBACzB,IAAI,GAAG,EAAE,UAAU,EAAE,CAAC,EAAE,CAAC;gBACzB,IAAI,GAAG,OAAO,CAAC,QAAQ,CAAC;aACzB;iBAAM;gBACL,IAAI,GAAG,CAAC,OAAO,CAAC,QAAQ,GAAG,CAAC,CAAC;aAC9B;SACF;QACD,OAAO,IAAI,iCAAsB,CAC/B,IAAI,CAAC,CAAC,CAAC,iBAAiB,EACxB,IAAI,CAAC,CAAC,CAAC,gBAAgB,EACvB,IAAI,CAAC,CAAC,CAAC,OAAO,CAAC,cAAc,EAC7B,EAAE,QAAQ,EAAE,EACZ,EAAE,GAAG,OAAO,EAAE,IAAI,EAAE,IAAI,EAAE,CAC3B,CAAC;IACJ,CAAC;IAED;;;;;OAKG;IACH,KAAK,CAAC,MAAM,CAAC,EAAY,EAAE,QAAgB;QACzC,MAAM,MAAM,GAAG,EAAE,GAAG,EAAE,EAAE,EAAE,CAAC;QAC3B,MAAM,MAAM,GAAG,EAAE,IAAI,EAAE,EAAE,QAAQ,EAAE,EAAE,CAAC;QACtC,MAAM,EAAE,YAAY,EAAE,GAAG,MAAM,IAAI,CAAC,CAAC,CAAC,gBAAgB,CAAC,SAAS,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;QACjF,IAAI,YAAY,KAAK,CAAC,EAAE;YACtB,MAAM,IAAI,yBAAiB,CAAC,gBAAgB,EAAE,YAAY,CAAC,CAAC;SAC7D;IACH,CAAC;IAED,iFAAiF;IACjF,KAAK,CAAC,IAAI;QACR,MAAM,IAAI,CAAC,CAAC,CAAC,gBAAgB,CAAC,IAAI,EAAE,CAAC;QACrC,MAAM,IAAI,CAAC,CAAC,CAAC,iBAAiB,CAAC,IAAI,EAAE,CAAC;IACxC,CAAC;;AA/ID;;;;;;;GAOG;AACa,kBAAK,GAAG,OAAgB,CAAC;AAZ9B,oCAAY"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/upload.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/upload.js new file mode 100644 index 000000000..f134acf21 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/upload.js @@ -0,0 +1,310 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.GridFSBucketWriteStream = void 0; +const stream_1 = require("stream"); +const bson_1 = require("../bson"); +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const write_concern_1 = require("./../write_concern"); +/** + * A writable stream that enables you to write buffers to GridFS. + * + * Do not instantiate this class directly. Use `openUploadStream()` instead. + * @public + */ +class GridFSBucketWriteStream extends stream_1.Writable { + /** + * @param bucket - Handle for this stream's corresponding bucket + * @param filename - The value of the 'filename' key in the files doc + * @param options - Optional settings. + * @internal + */ + constructor(bucket, filename, options) { + super(); + /** + * The document containing information about the inserted file. + * This property is defined _after_ the finish event has been emitted. + * It will remain `null` if an error occurs. + * + * @example + * ```ts + * fs.createReadStream('file.txt') + * .pipe(bucket.openUploadStream('file.txt')) + * .on('finish', function () { + * console.log(this.gridFSFile) + * }) + * ``` + */ + this.gridFSFile = null; + options = options ?? {}; + this.bucket = bucket; + this.chunks = bucket.s._chunksCollection; + this.filename = filename; + this.files = bucket.s._filesCollection; + this.options = options; + this.writeConcern = write_concern_1.WriteConcern.fromOptions(options) || bucket.s.options.writeConcern; + // Signals the write is all done + this.done = false; + this.id = options.id ? options.id : new bson_1.ObjectId(); + // properly inherit the default chunksize from parent + this.chunkSizeBytes = options.chunkSizeBytes || this.bucket.s.options.chunkSizeBytes; + this.bufToStore = Buffer.alloc(this.chunkSizeBytes); + this.length = 0; + this.n = 0; + this.pos = 0; + this.state = { + streamEnd: false, + outstandingRequests: 0, + errored: false, + aborted: false + }; + if (!this.bucket.s.calledOpenUploadStream) { + this.bucket.s.calledOpenUploadStream = true; + // eslint-disable-next-line github/no-then + checkIndexes(this).then(() => { + this.bucket.s.checkedIndexes = true; + this.bucket.emit('index'); + }, utils_1.squashError); + } + } + /** + * @internal + * + * The stream is considered constructed when the indexes are done being created + */ + _construct(callback) { + if (this.bucket.s.checkedIndexes) { + return process.nextTick(callback); + } + this.bucket.once('index', callback); + } + /** + * @internal + * Write a buffer to the stream. + * + * @param chunk - Buffer to write + * @param encoding - Optional encoding for the buffer + * @param callback - Function to call when the chunk was added to the buffer, or if the entire chunk was persisted to MongoDB if this chunk caused a flush. + */ + _write(chunk, encoding, callback) { + doWrite(this, chunk, encoding, callback); + } + /** @internal */ + _final(callback) { + if (this.state.streamEnd) { + return process.nextTick(callback); + } + this.state.streamEnd = true; + writeRemnant(this, callback); + } + /** + * Places this write stream into an aborted state (all future writes fail) + * and deletes all chunks that have already been written. + */ + async abort() { + if (this.state.streamEnd) { + // TODO(NODE-3485): Replace with MongoGridFSStreamClosed + throw new error_1.MongoAPIError('Cannot abort a stream that has already completed'); + } + if (this.state.aborted) { + // TODO(NODE-3485): Replace with MongoGridFSStreamClosed + throw new error_1.MongoAPIError('Cannot call abort() on a stream twice'); + } + this.state.aborted = true; + await this.chunks.deleteMany({ files_id: this.id }); + } +} +exports.GridFSBucketWriteStream = GridFSBucketWriteStream; +function handleError(stream, error, callback) { + if (stream.state.errored) { + process.nextTick(callback); + return; + } + stream.state.errored = true; + process.nextTick(callback, error); +} +function createChunkDoc(filesId, n, data) { + return { + _id: new bson_1.ObjectId(), + files_id: filesId, + n, + data + }; +} +async function checkChunksIndex(stream) { + const index = { files_id: 1, n: 1 }; + let indexes; + try { + indexes = await stream.chunks.listIndexes().toArray(); + } + catch (error) { + if (error instanceof error_1.MongoError && error.code === error_1.MONGODB_ERROR_CODES.NamespaceNotFound) { + indexes = []; + } + else { + throw error; + } + } + const hasChunksIndex = !!indexes.find(index => { + const keys = Object.keys(index.key); + if (keys.length === 2 && index.key.files_id === 1 && index.key.n === 1) { + return true; + } + return false; + }); + if (!hasChunksIndex) { + await stream.chunks.createIndex(index, { + ...stream.writeConcern, + background: true, + unique: true + }); + } +} +function checkDone(stream, callback) { + if (stream.done) { + return process.nextTick(callback); + } + if (stream.state.streamEnd && stream.state.outstandingRequests === 0 && !stream.state.errored) { + // Set done so we do not trigger duplicate createFilesDoc + stream.done = true; + // Create a new files doc + const gridFSFile = createFilesDoc(stream.id, stream.length, stream.chunkSizeBytes, stream.filename, stream.options.contentType, stream.options.aliases, stream.options.metadata); + if (isAborted(stream, callback)) { + return; + } + // eslint-disable-next-line github/no-then + stream.files.insertOne(gridFSFile, { writeConcern: stream.writeConcern }).then(() => { + stream.gridFSFile = gridFSFile; + callback(); + }, error => handleError(stream, error, callback)); + return; + } + process.nextTick(callback); +} +async function checkIndexes(stream) { + const doc = await stream.files.findOne({}, { projection: { _id: 1 } }); + if (doc != null) { + // If at least one document exists assume the collection has the required index + return; + } + const index = { filename: 1, uploadDate: 1 }; + let indexes; + try { + indexes = await stream.files.listIndexes().toArray(); + } + catch (error) { + if (error instanceof error_1.MongoError && error.code === error_1.MONGODB_ERROR_CODES.NamespaceNotFound) { + indexes = []; + } + else { + throw error; + } + } + const hasFileIndex = !!indexes.find(index => { + const keys = Object.keys(index.key); + if (keys.length === 2 && index.key.filename === 1 && index.key.uploadDate === 1) { + return true; + } + return false; + }); + if (!hasFileIndex) { + await stream.files.createIndex(index, { background: false }); + } + await checkChunksIndex(stream); +} +function createFilesDoc(_id, length, chunkSize, filename, contentType, aliases, metadata) { + const ret = { + _id, + length, + chunkSize, + uploadDate: new Date(), + filename + }; + if (contentType) { + ret.contentType = contentType; + } + if (aliases) { + ret.aliases = aliases; + } + if (metadata) { + ret.metadata = metadata; + } + return ret; +} +function doWrite(stream, chunk, encoding, callback) { + if (isAborted(stream, callback)) { + return; + } + const inputBuf = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk, encoding); + stream.length += inputBuf.length; + // Input is small enough to fit in our buffer + if (stream.pos + inputBuf.length < stream.chunkSizeBytes) { + inputBuf.copy(stream.bufToStore, stream.pos); + stream.pos += inputBuf.length; + process.nextTick(callback); + return; + } + // Otherwise, buffer is too big for current chunk, so we need to flush + // to MongoDB. + let inputBufRemaining = inputBuf.length; + let spaceRemaining = stream.chunkSizeBytes - stream.pos; + let numToCopy = Math.min(spaceRemaining, inputBuf.length); + let outstandingRequests = 0; + while (inputBufRemaining > 0) { + const inputBufPos = inputBuf.length - inputBufRemaining; + inputBuf.copy(stream.bufToStore, stream.pos, inputBufPos, inputBufPos + numToCopy); + stream.pos += numToCopy; + spaceRemaining -= numToCopy; + let doc; + if (spaceRemaining === 0) { + doc = createChunkDoc(stream.id, stream.n, Buffer.from(stream.bufToStore)); + ++stream.state.outstandingRequests; + ++outstandingRequests; + if (isAborted(stream, callback)) { + return; + } + // eslint-disable-next-line github/no-then + stream.chunks.insertOne(doc, { writeConcern: stream.writeConcern }).then(() => { + --stream.state.outstandingRequests; + --outstandingRequests; + if (!outstandingRequests) { + checkDone(stream, callback); + } + }, error => handleError(stream, error, callback)); + spaceRemaining = stream.chunkSizeBytes; + stream.pos = 0; + ++stream.n; + } + inputBufRemaining -= numToCopy; + numToCopy = Math.min(spaceRemaining, inputBufRemaining); + } +} +function writeRemnant(stream, callback) { + // Buffer is empty, so don't bother to insert + if (stream.pos === 0) { + return checkDone(stream, callback); + } + ++stream.state.outstandingRequests; + // Create a new buffer to make sure the buffer isn't bigger than it needs + // to be. + const remnant = Buffer.alloc(stream.pos); + stream.bufToStore.copy(remnant, 0, 0, stream.pos); + const doc = createChunkDoc(stream.id, stream.n, remnant); + // If the stream was aborted, do not write remnant + if (isAborted(stream, callback)) { + return; + } + // eslint-disable-next-line github/no-then + stream.chunks.insertOne(doc, { writeConcern: stream.writeConcern }).then(() => { + --stream.state.outstandingRequests; + checkDone(stream, callback); + }, error => handleError(stream, error, callback)); +} +function isAborted(stream, callback) { + if (stream.state.aborted) { + process.nextTick(callback, new error_1.MongoAPIError('Stream has been aborted')); + return true; + } + return false; +} +//# sourceMappingURL=upload.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/upload.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/upload.js.map new file mode 100644 index 000000000..641b6b856 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/gridfs/upload.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/index.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/index.js new file mode 100644 index 000000000..69cdca12f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/index.js @@ -0,0 +1,180 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoUnexpectedServerResponseError = exports.MongoTransactionError = exports.MongoTopologyClosedError = exports.MongoTailableCursorError = exports.MongoSystemError = exports.MongoServerSelectionError = exports.MongoServerError = exports.MongoServerClosedError = exports.MongoRuntimeError = exports.MongoParseError = exports.MongoNotConnectedError = exports.MongoNetworkTimeoutError = exports.MongoNetworkError = exports.MongoMissingDependencyError = exports.MongoMissingCredentialsError = exports.MongoKerberosError = exports.MongoInvalidArgumentError = exports.MongoGridFSStreamError = exports.MongoGridFSChunkError = exports.MongoExpiredSessionError = exports.MongoError = exports.MongoDriverError = exports.MongoDecompressionError = exports.MongoCursorInUseError = exports.MongoCursorExhaustedError = exports.MongoCompatibilityError = exports.MongoChangeStreamError = exports.MongoBatchReExecutionError = exports.MongoAzureError = exports.MongoAWSError = exports.MongoAPIError = exports.ChangeStreamCursor = exports.ClientEncryption = exports.MongoBulkWriteError = exports.UUID = exports.Timestamp = exports.ObjectId = exports.MinKey = exports.MaxKey = exports.Long = exports.Int32 = exports.Double = exports.Decimal128 = exports.DBRef = exports.Code = exports.BSONType = exports.BSONSymbol = exports.BSONRegExp = exports.Binary = exports.BSON = void 0; +exports.ConnectionPoolReadyEvent = exports.ConnectionPoolMonitoringEvent = exports.ConnectionPoolCreatedEvent = exports.ConnectionPoolClosedEvent = exports.ConnectionPoolClearedEvent = exports.ConnectionCreatedEvent = exports.ConnectionClosedEvent = exports.ConnectionCheckOutStartedEvent = exports.ConnectionCheckOutFailedEvent = exports.ConnectionCheckedOutEvent = exports.ConnectionCheckedInEvent = exports.CommandSucceededEvent = exports.CommandStartedEvent = exports.CommandFailedEvent = exports.WriteConcern = exports.ReadPreference = exports.ReadConcern = exports.TopologyType = exports.ServerType = exports.ReadPreferenceMode = exports.ReadConcernLevel = exports.ProfilingLevel = exports.ReturnDocument = exports.ServerApiVersion = exports.ExplainVerbosity = exports.MongoErrorLabel = exports.CURSOR_FLAGS = exports.Compressor = exports.AuthMechanism = exports.GSSAPICanonicalizationValue = exports.AutoEncryptionLoggerLevel = exports.BatchType = exports.UnorderedBulkOperation = exports.OrderedBulkOperation = exports.MongoClient = exports.ListIndexesCursor = exports.ListCollectionsCursor = exports.GridFSBucketWriteStream = exports.GridFSBucketReadStream = exports.GridFSBucket = exports.FindCursor = exports.Db = exports.Collection = exports.ClientSession = exports.ChangeStream = exports.CancellationToken = exports.AggregationCursor = exports.Admin = exports.AbstractCursor = exports.MongoWriteConcernError = void 0; +exports.MongoClientAuthProviders = exports.MongoCryptKMSRequestNetworkTimeoutError = exports.MongoCryptInvalidArgumentError = exports.MongoCryptError = exports.MongoCryptCreateEncryptedCollectionError = exports.MongoCryptCreateDataKeyError = exports.MongoCryptAzureKMSRequestError = exports.SrvPollingEvent = exports.WaitingForSuitableServerEvent = exports.ServerSelectionSucceededEvent = exports.ServerSelectionStartedEvent = exports.ServerSelectionFailedEvent = exports.ServerSelectionEvent = exports.TopologyOpeningEvent = exports.TopologyDescriptionChangedEvent = exports.TopologyClosedEvent = exports.ServerOpeningEvent = exports.ServerHeartbeatSucceededEvent = exports.ServerHeartbeatStartedEvent = exports.ServerHeartbeatFailedEvent = exports.ServerDescriptionChangedEvent = exports.ServerClosedEvent = exports.ConnectionReadyEvent = void 0; +const admin_1 = require("./admin"); +Object.defineProperty(exports, "Admin", { enumerable: true, get: function () { return admin_1.Admin; } }); +const ordered_1 = require("./bulk/ordered"); +Object.defineProperty(exports, "OrderedBulkOperation", { enumerable: true, get: function () { return ordered_1.OrderedBulkOperation; } }); +const unordered_1 = require("./bulk/unordered"); +Object.defineProperty(exports, "UnorderedBulkOperation", { enumerable: true, get: function () { return unordered_1.UnorderedBulkOperation; } }); +const change_stream_1 = require("./change_stream"); +Object.defineProperty(exports, "ChangeStream", { enumerable: true, get: function () { return change_stream_1.ChangeStream; } }); +const collection_1 = require("./collection"); +Object.defineProperty(exports, "Collection", { enumerable: true, get: function () { return collection_1.Collection; } }); +const abstract_cursor_1 = require("./cursor/abstract_cursor"); +Object.defineProperty(exports, "AbstractCursor", { enumerable: true, get: function () { return abstract_cursor_1.AbstractCursor; } }); +const aggregation_cursor_1 = require("./cursor/aggregation_cursor"); +Object.defineProperty(exports, "AggregationCursor", { enumerable: true, get: function () { return aggregation_cursor_1.AggregationCursor; } }); +const find_cursor_1 = require("./cursor/find_cursor"); +Object.defineProperty(exports, "FindCursor", { enumerable: true, get: function () { return find_cursor_1.FindCursor; } }); +const list_collections_cursor_1 = require("./cursor/list_collections_cursor"); +Object.defineProperty(exports, "ListCollectionsCursor", { enumerable: true, get: function () { return list_collections_cursor_1.ListCollectionsCursor; } }); +const list_indexes_cursor_1 = require("./cursor/list_indexes_cursor"); +Object.defineProperty(exports, "ListIndexesCursor", { enumerable: true, get: function () { return list_indexes_cursor_1.ListIndexesCursor; } }); +const db_1 = require("./db"); +Object.defineProperty(exports, "Db", { enumerable: true, get: function () { return db_1.Db; } }); +const gridfs_1 = require("./gridfs"); +Object.defineProperty(exports, "GridFSBucket", { enumerable: true, get: function () { return gridfs_1.GridFSBucket; } }); +const download_1 = require("./gridfs/download"); +Object.defineProperty(exports, "GridFSBucketReadStream", { enumerable: true, get: function () { return download_1.GridFSBucketReadStream; } }); +const upload_1 = require("./gridfs/upload"); +Object.defineProperty(exports, "GridFSBucketWriteStream", { enumerable: true, get: function () { return upload_1.GridFSBucketWriteStream; } }); +const mongo_client_1 = require("./mongo_client"); +Object.defineProperty(exports, "MongoClient", { enumerable: true, get: function () { return mongo_client_1.MongoClient; } }); +const mongo_types_1 = require("./mongo_types"); +Object.defineProperty(exports, "CancellationToken", { enumerable: true, get: function () { return mongo_types_1.CancellationToken; } }); +const sessions_1 = require("./sessions"); +Object.defineProperty(exports, "ClientSession", { enumerable: true, get: function () { return sessions_1.ClientSession; } }); +/** @public */ +var bson_1 = require("./bson"); +Object.defineProperty(exports, "BSON", { enumerable: true, get: function () { return bson_1.BSON; } }); +var bson_2 = require("./bson"); +Object.defineProperty(exports, "Binary", { enumerable: true, get: function () { return bson_2.Binary; } }); +Object.defineProperty(exports, "BSONRegExp", { enumerable: true, get: function () { return bson_2.BSONRegExp; } }); +Object.defineProperty(exports, "BSONSymbol", { enumerable: true, get: function () { return bson_2.BSONSymbol; } }); +Object.defineProperty(exports, "BSONType", { enumerable: true, get: function () { return bson_2.BSONType; } }); +Object.defineProperty(exports, "Code", { enumerable: true, get: function () { return bson_2.Code; } }); +Object.defineProperty(exports, "DBRef", { enumerable: true, get: function () { return bson_2.DBRef; } }); +Object.defineProperty(exports, "Decimal128", { enumerable: true, get: function () { return bson_2.Decimal128; } }); +Object.defineProperty(exports, "Double", { enumerable: true, get: function () { return bson_2.Double; } }); +Object.defineProperty(exports, "Int32", { enumerable: true, get: function () { return bson_2.Int32; } }); +Object.defineProperty(exports, "Long", { enumerable: true, get: function () { return bson_2.Long; } }); +Object.defineProperty(exports, "MaxKey", { enumerable: true, get: function () { return bson_2.MaxKey; } }); +Object.defineProperty(exports, "MinKey", { enumerable: true, get: function () { return bson_2.MinKey; } }); +Object.defineProperty(exports, "ObjectId", { enumerable: true, get: function () { return bson_2.ObjectId; } }); +Object.defineProperty(exports, "Timestamp", { enumerable: true, get: function () { return bson_2.Timestamp; } }); +Object.defineProperty(exports, "UUID", { enumerable: true, get: function () { return bson_2.UUID; } }); +var common_1 = require("./bulk/common"); +Object.defineProperty(exports, "MongoBulkWriteError", { enumerable: true, get: function () { return common_1.MongoBulkWriteError; } }); +var client_encryption_1 = require("./client-side-encryption/client_encryption"); +Object.defineProperty(exports, "ClientEncryption", { enumerable: true, get: function () { return client_encryption_1.ClientEncryption; } }); +var change_stream_cursor_1 = require("./cursor/change_stream_cursor"); +Object.defineProperty(exports, "ChangeStreamCursor", { enumerable: true, get: function () { return change_stream_cursor_1.ChangeStreamCursor; } }); +var error_1 = require("./error"); +Object.defineProperty(exports, "MongoAPIError", { enumerable: true, get: function () { return error_1.MongoAPIError; } }); +Object.defineProperty(exports, "MongoAWSError", { enumerable: true, get: function () { return error_1.MongoAWSError; } }); +Object.defineProperty(exports, "MongoAzureError", { enumerable: true, get: function () { return error_1.MongoAzureError; } }); +Object.defineProperty(exports, "MongoBatchReExecutionError", { enumerable: true, get: function () { return error_1.MongoBatchReExecutionError; } }); +Object.defineProperty(exports, "MongoChangeStreamError", { enumerable: true, get: function () { return error_1.MongoChangeStreamError; } }); +Object.defineProperty(exports, "MongoCompatibilityError", { enumerable: true, get: function () { return error_1.MongoCompatibilityError; } }); +Object.defineProperty(exports, "MongoCursorExhaustedError", { enumerable: true, get: function () { return error_1.MongoCursorExhaustedError; } }); +Object.defineProperty(exports, "MongoCursorInUseError", { enumerable: true, get: function () { return error_1.MongoCursorInUseError; } }); +Object.defineProperty(exports, "MongoDecompressionError", { enumerable: true, get: function () { return error_1.MongoDecompressionError; } }); +Object.defineProperty(exports, "MongoDriverError", { enumerable: true, get: function () { return error_1.MongoDriverError; } }); +Object.defineProperty(exports, "MongoError", { enumerable: true, get: function () { return error_1.MongoError; } }); +Object.defineProperty(exports, "MongoExpiredSessionError", { enumerable: true, get: function () { return error_1.MongoExpiredSessionError; } }); +Object.defineProperty(exports, "MongoGridFSChunkError", { enumerable: true, get: function () { return error_1.MongoGridFSChunkError; } }); +Object.defineProperty(exports, "MongoGridFSStreamError", { enumerable: true, get: function () { return error_1.MongoGridFSStreamError; } }); +Object.defineProperty(exports, "MongoInvalidArgumentError", { enumerable: true, get: function () { return error_1.MongoInvalidArgumentError; } }); +Object.defineProperty(exports, "MongoKerberosError", { enumerable: true, get: function () { return error_1.MongoKerberosError; } }); +Object.defineProperty(exports, "MongoMissingCredentialsError", { enumerable: true, get: function () { return error_1.MongoMissingCredentialsError; } }); +Object.defineProperty(exports, "MongoMissingDependencyError", { enumerable: true, get: function () { return error_1.MongoMissingDependencyError; } }); +Object.defineProperty(exports, "MongoNetworkError", { enumerable: true, get: function () { return error_1.MongoNetworkError; } }); +Object.defineProperty(exports, "MongoNetworkTimeoutError", { enumerable: true, get: function () { return error_1.MongoNetworkTimeoutError; } }); +Object.defineProperty(exports, "MongoNotConnectedError", { enumerable: true, get: function () { return error_1.MongoNotConnectedError; } }); +Object.defineProperty(exports, "MongoParseError", { enumerable: true, get: function () { return error_1.MongoParseError; } }); +Object.defineProperty(exports, "MongoRuntimeError", { enumerable: true, get: function () { return error_1.MongoRuntimeError; } }); +Object.defineProperty(exports, "MongoServerClosedError", { enumerable: true, get: function () { return error_1.MongoServerClosedError; } }); +Object.defineProperty(exports, "MongoServerError", { enumerable: true, get: function () { return error_1.MongoServerError; } }); +Object.defineProperty(exports, "MongoServerSelectionError", { enumerable: true, get: function () { return error_1.MongoServerSelectionError; } }); +Object.defineProperty(exports, "MongoSystemError", { enumerable: true, get: function () { return error_1.MongoSystemError; } }); +Object.defineProperty(exports, "MongoTailableCursorError", { enumerable: true, get: function () { return error_1.MongoTailableCursorError; } }); +Object.defineProperty(exports, "MongoTopologyClosedError", { enumerable: true, get: function () { return error_1.MongoTopologyClosedError; } }); +Object.defineProperty(exports, "MongoTransactionError", { enumerable: true, get: function () { return error_1.MongoTransactionError; } }); +Object.defineProperty(exports, "MongoUnexpectedServerResponseError", { enumerable: true, get: function () { return error_1.MongoUnexpectedServerResponseError; } }); +Object.defineProperty(exports, "MongoWriteConcernError", { enumerable: true, get: function () { return error_1.MongoWriteConcernError; } }); +// enums +var common_2 = require("./bulk/common"); +Object.defineProperty(exports, "BatchType", { enumerable: true, get: function () { return common_2.BatchType; } }); +var auto_encrypter_1 = require("./client-side-encryption/auto_encrypter"); +Object.defineProperty(exports, "AutoEncryptionLoggerLevel", { enumerable: true, get: function () { return auto_encrypter_1.AutoEncryptionLoggerLevel; } }); +var gssapi_1 = require("./cmap/auth/gssapi"); +Object.defineProperty(exports, "GSSAPICanonicalizationValue", { enumerable: true, get: function () { return gssapi_1.GSSAPICanonicalizationValue; } }); +var providers_1 = require("./cmap/auth/providers"); +Object.defineProperty(exports, "AuthMechanism", { enumerable: true, get: function () { return providers_1.AuthMechanism; } }); +var compression_1 = require("./cmap/wire_protocol/compression"); +Object.defineProperty(exports, "Compressor", { enumerable: true, get: function () { return compression_1.Compressor; } }); +var abstract_cursor_2 = require("./cursor/abstract_cursor"); +Object.defineProperty(exports, "CURSOR_FLAGS", { enumerable: true, get: function () { return abstract_cursor_2.CURSOR_FLAGS; } }); +var error_2 = require("./error"); +Object.defineProperty(exports, "MongoErrorLabel", { enumerable: true, get: function () { return error_2.MongoErrorLabel; } }); +var explain_1 = require("./explain"); +Object.defineProperty(exports, "ExplainVerbosity", { enumerable: true, get: function () { return explain_1.ExplainVerbosity; } }); +var mongo_client_2 = require("./mongo_client"); +Object.defineProperty(exports, "ServerApiVersion", { enumerable: true, get: function () { return mongo_client_2.ServerApiVersion; } }); +var find_and_modify_1 = require("./operations/find_and_modify"); +Object.defineProperty(exports, "ReturnDocument", { enumerable: true, get: function () { return find_and_modify_1.ReturnDocument; } }); +var set_profiling_level_1 = require("./operations/set_profiling_level"); +Object.defineProperty(exports, "ProfilingLevel", { enumerable: true, get: function () { return set_profiling_level_1.ProfilingLevel; } }); +var read_concern_1 = require("./read_concern"); +Object.defineProperty(exports, "ReadConcernLevel", { enumerable: true, get: function () { return read_concern_1.ReadConcernLevel; } }); +var read_preference_1 = require("./read_preference"); +Object.defineProperty(exports, "ReadPreferenceMode", { enumerable: true, get: function () { return read_preference_1.ReadPreferenceMode; } }); +var common_3 = require("./sdam/common"); +Object.defineProperty(exports, "ServerType", { enumerable: true, get: function () { return common_3.ServerType; } }); +Object.defineProperty(exports, "TopologyType", { enumerable: true, get: function () { return common_3.TopologyType; } }); +// Helper classes +var read_concern_2 = require("./read_concern"); +Object.defineProperty(exports, "ReadConcern", { enumerable: true, get: function () { return read_concern_2.ReadConcern; } }); +var read_preference_2 = require("./read_preference"); +Object.defineProperty(exports, "ReadPreference", { enumerable: true, get: function () { return read_preference_2.ReadPreference; } }); +var write_concern_1 = require("./write_concern"); +Object.defineProperty(exports, "WriteConcern", { enumerable: true, get: function () { return write_concern_1.WriteConcern; } }); +// events +var command_monitoring_events_1 = require("./cmap/command_monitoring_events"); +Object.defineProperty(exports, "CommandFailedEvent", { enumerable: true, get: function () { return command_monitoring_events_1.CommandFailedEvent; } }); +Object.defineProperty(exports, "CommandStartedEvent", { enumerable: true, get: function () { return command_monitoring_events_1.CommandStartedEvent; } }); +Object.defineProperty(exports, "CommandSucceededEvent", { enumerable: true, get: function () { return command_monitoring_events_1.CommandSucceededEvent; } }); +var connection_pool_events_1 = require("./cmap/connection_pool_events"); +Object.defineProperty(exports, "ConnectionCheckedInEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckedInEvent; } }); +Object.defineProperty(exports, "ConnectionCheckedOutEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckedOutEvent; } }); +Object.defineProperty(exports, "ConnectionCheckOutFailedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckOutFailedEvent; } }); +Object.defineProperty(exports, "ConnectionCheckOutStartedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCheckOutStartedEvent; } }); +Object.defineProperty(exports, "ConnectionClosedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionClosedEvent; } }); +Object.defineProperty(exports, "ConnectionCreatedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionCreatedEvent; } }); +Object.defineProperty(exports, "ConnectionPoolClearedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolClearedEvent; } }); +Object.defineProperty(exports, "ConnectionPoolClosedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolClosedEvent; } }); +Object.defineProperty(exports, "ConnectionPoolCreatedEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolCreatedEvent; } }); +Object.defineProperty(exports, "ConnectionPoolMonitoringEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolMonitoringEvent; } }); +Object.defineProperty(exports, "ConnectionPoolReadyEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionPoolReadyEvent; } }); +Object.defineProperty(exports, "ConnectionReadyEvent", { enumerable: true, get: function () { return connection_pool_events_1.ConnectionReadyEvent; } }); +var events_1 = require("./sdam/events"); +Object.defineProperty(exports, "ServerClosedEvent", { enumerable: true, get: function () { return events_1.ServerClosedEvent; } }); +Object.defineProperty(exports, "ServerDescriptionChangedEvent", { enumerable: true, get: function () { return events_1.ServerDescriptionChangedEvent; } }); +Object.defineProperty(exports, "ServerHeartbeatFailedEvent", { enumerable: true, get: function () { return events_1.ServerHeartbeatFailedEvent; } }); +Object.defineProperty(exports, "ServerHeartbeatStartedEvent", { enumerable: true, get: function () { return events_1.ServerHeartbeatStartedEvent; } }); +Object.defineProperty(exports, "ServerHeartbeatSucceededEvent", { enumerable: true, get: function () { return events_1.ServerHeartbeatSucceededEvent; } }); +Object.defineProperty(exports, "ServerOpeningEvent", { enumerable: true, get: function () { return events_1.ServerOpeningEvent; } }); +Object.defineProperty(exports, "TopologyClosedEvent", { enumerable: true, get: function () { return events_1.TopologyClosedEvent; } }); +Object.defineProperty(exports, "TopologyDescriptionChangedEvent", { enumerable: true, get: function () { return events_1.TopologyDescriptionChangedEvent; } }); +Object.defineProperty(exports, "TopologyOpeningEvent", { enumerable: true, get: function () { return events_1.TopologyOpeningEvent; } }); +var server_selection_events_1 = require("./sdam/server_selection_events"); +Object.defineProperty(exports, "ServerSelectionEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionEvent; } }); +Object.defineProperty(exports, "ServerSelectionFailedEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionFailedEvent; } }); +Object.defineProperty(exports, "ServerSelectionStartedEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionStartedEvent; } }); +Object.defineProperty(exports, "ServerSelectionSucceededEvent", { enumerable: true, get: function () { return server_selection_events_1.ServerSelectionSucceededEvent; } }); +Object.defineProperty(exports, "WaitingForSuitableServerEvent", { enumerable: true, get: function () { return server_selection_events_1.WaitingForSuitableServerEvent; } }); +var srv_polling_1 = require("./sdam/srv_polling"); +Object.defineProperty(exports, "SrvPollingEvent", { enumerable: true, get: function () { return srv_polling_1.SrvPollingEvent; } }); +var errors_1 = require("./client-side-encryption/errors"); +Object.defineProperty(exports, "MongoCryptAzureKMSRequestError", { enumerable: true, get: function () { return errors_1.MongoCryptAzureKMSRequestError; } }); +Object.defineProperty(exports, "MongoCryptCreateDataKeyError", { enumerable: true, get: function () { return errors_1.MongoCryptCreateDataKeyError; } }); +Object.defineProperty(exports, "MongoCryptCreateEncryptedCollectionError", { enumerable: true, get: function () { return errors_1.MongoCryptCreateEncryptedCollectionError; } }); +Object.defineProperty(exports, "MongoCryptError", { enumerable: true, get: function () { return errors_1.MongoCryptError; } }); +Object.defineProperty(exports, "MongoCryptInvalidArgumentError", { enumerable: true, get: function () { return errors_1.MongoCryptInvalidArgumentError; } }); +Object.defineProperty(exports, "MongoCryptKMSRequestNetworkTimeoutError", { enumerable: true, get: function () { return errors_1.MongoCryptKMSRequestNetworkTimeoutError; } }); +var mongo_client_auth_providers_1 = require("./mongo_client_auth_providers"); +Object.defineProperty(exports, "MongoClientAuthProviders", { enumerable: true, get: function () { return mongo_client_auth_providers_1.MongoClientAuthProviders; } }); +//# sourceMappingURL=index.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/index.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/index.js.map new file mode 100644 index 000000000..c7ca632f8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/index.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client.js new file mode 100644 index 000000000..1306daf3e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client.js @@ -0,0 +1,362 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoClient = exports.ServerApiVersion = void 0; +const fs_1 = require("fs"); +const bson_1 = require("./bson"); +const change_stream_1 = require("./change_stream"); +const mongo_credentials_1 = require("./cmap/auth/mongo_credentials"); +const providers_1 = require("./cmap/auth/providers"); +const connection_string_1 = require("./connection_string"); +const constants_1 = require("./constants"); +const db_1 = require("./db"); +const error_1 = require("./error"); +const mongo_client_auth_providers_1 = require("./mongo_client_auth_providers"); +const mongo_logger_1 = require("./mongo_logger"); +const mongo_types_1 = require("./mongo_types"); +const execute_operation_1 = require("./operations/execute_operation"); +const run_command_1 = require("./operations/run_command"); +const read_preference_1 = require("./read_preference"); +const server_selection_1 = require("./sdam/server_selection"); +const topology_1 = require("./sdam/topology"); +const sessions_1 = require("./sessions"); +const utils_1 = require("./utils"); +/** @public */ +exports.ServerApiVersion = Object.freeze({ + v1: '1' +}); +/** @internal */ +const kOptions = Symbol('options'); +/** + * The **MongoClient** class is a class that allows for making Connections to MongoDB. + * @public + * + * @remarks + * The programmatically provided options take precedence over the URI options. + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * // Enable command monitoring for debugging + * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true }); + * + * client.on('commandStarted', started => console.log(started)); + * client.db().collection('pets'); + * await client.insertOne({ name: 'spot', kind: 'dog' }); + * ``` + */ +class MongoClient extends mongo_types_1.TypedEventEmitter { + constructor(url, options) { + super(); + this[kOptions] = (0, connection_string_1.parseOptions)(url, this, options); + const shouldSetLogger = Object.values(this[kOptions].mongoLoggerOptions.componentSeverities).some(value => value !== mongo_logger_1.SeverityLevel.OFF); + this.mongoLogger = shouldSetLogger + ? new mongo_logger_1.MongoLogger(this[kOptions].mongoLoggerOptions) + : undefined; + // eslint-disable-next-line @typescript-eslint/no-this-alias + const client = this; + // The internal state + this.s = { + url, + bsonOptions: (0, bson_1.resolveBSONOptions)(this[kOptions]), + namespace: (0, utils_1.ns)('admin'), + hasBeenClosed: false, + sessionPool: new sessions_1.ServerSessionPool(this), + activeSessions: new Set(), + authProviders: new mongo_client_auth_providers_1.MongoClientAuthProviders(), + get options() { + return client[kOptions]; + }, + get readConcern() { + return client[kOptions].readConcern; + }, + get writeConcern() { + return client[kOptions].writeConcern; + }, + get readPreference() { + return client[kOptions].readPreference; + }, + get isMongoClient() { + return true; + } + }; + this.checkForNonGenuineHosts(); + } + /** @internal */ + checkForNonGenuineHosts() { + const documentDBHostnames = this[kOptions].hosts.filter((hostAddress) => (0, utils_1.isHostMatch)(utils_1.DOCUMENT_DB_CHECK, hostAddress.host)); + const srvHostIsDocumentDB = (0, utils_1.isHostMatch)(utils_1.DOCUMENT_DB_CHECK, this[kOptions].srvHost); + const cosmosDBHostnames = this[kOptions].hosts.filter((hostAddress) => (0, utils_1.isHostMatch)(utils_1.COSMOS_DB_CHECK, hostAddress.host)); + const srvHostIsCosmosDB = (0, utils_1.isHostMatch)(utils_1.COSMOS_DB_CHECK, this[kOptions].srvHost); + if (documentDBHostnames.length !== 0 || srvHostIsDocumentDB) { + this.mongoLogger?.info('client', utils_1.DOCUMENT_DB_MSG); + } + else if (cosmosDBHostnames.length !== 0 || srvHostIsCosmosDB) { + this.mongoLogger?.info('client', utils_1.COSMOS_DB_MSG); + } + } + /** @see MongoOptions */ + get options() { + return Object.freeze({ ...this[kOptions] }); + } + get serverApi() { + return this[kOptions].serverApi && Object.freeze({ ...this[kOptions].serverApi }); + } + /** + * Intended for APM use only + * @internal + */ + get monitorCommands() { + return this[kOptions].monitorCommands; + } + set monitorCommands(value) { + this[kOptions].monitorCommands = value; + } + /** @internal */ + get autoEncrypter() { + return this[kOptions].autoEncrypter; + } + get readConcern() { + return this.s.readConcern; + } + get writeConcern() { + return this.s.writeConcern; + } + get readPreference() { + return this.s.readPreference; + } + get bsonOptions() { + return this.s.bsonOptions; + } + /** + * Connect to MongoDB using a url + * + * @see docs.mongodb.org/manual/reference/connection-string/ + */ + async connect() { + if (this.connectionLock) { + return await this.connectionLock; + } + try { + this.connectionLock = this._connect(); + await this.connectionLock; + } + finally { + // release + this.connectionLock = undefined; + } + return this; + } + /** + * Create a topology to open the connection, must be locked to avoid topology leaks in concurrency scenario. + * Locking is enforced by the connect method. + * + * @internal + */ + async _connect() { + if (this.topology && this.topology.isConnected()) { + return this; + } + const options = this[kOptions]; + if (options.tls) { + if (typeof options.tlsCAFile === 'string') { + options.ca ??= await fs_1.promises.readFile(options.tlsCAFile); + } + if (typeof options.tlsCRLFile === 'string') { + options.crl ??= await fs_1.promises.readFile(options.tlsCRLFile); + } + if (typeof options.tlsCertificateKeyFile === 'string') { + if (!options.key || !options.cert) { + const contents = await fs_1.promises.readFile(options.tlsCertificateKeyFile); + options.key ??= contents; + options.cert ??= contents; + } + } + } + if (typeof options.srvHost === 'string') { + const hosts = await (0, connection_string_1.resolveSRVRecord)(options); + for (const [index, host] of hosts.entries()) { + options.hosts[index] = host; + } + } + // It is important to perform validation of hosts AFTER SRV resolution, to check the real hostname, + // but BEFORE we even attempt connecting with a potentially not allowed hostname + if (options.credentials?.mechanism === providers_1.AuthMechanism.MONGODB_OIDC) { + const allowedHosts = options.credentials?.mechanismProperties?.ALLOWED_HOSTS || mongo_credentials_1.DEFAULT_ALLOWED_HOSTS; + const isServiceAuth = !!options.credentials?.mechanismProperties?.PROVIDER_NAME; + if (!isServiceAuth) { + for (const host of options.hosts) { + if (!(0, utils_1.hostMatchesWildcards)(host.toHostPort().host, allowedHosts)) { + throw new error_1.MongoInvalidArgumentError(`Host '${host}' is not valid for OIDC authentication with ALLOWED_HOSTS of '${allowedHosts.join(',')}'`); + } + } + } + } + this.topology = new topology_1.Topology(this, options.hosts, options); + // Events can be emitted before initialization is complete so we have to + // save the reference to the topology on the client ASAP if the event handlers need to access it + this.topology.once(topology_1.Topology.OPEN, () => this.emit('open', this)); + for (const event of constants_1.MONGO_CLIENT_EVENTS) { + this.topology.on(event, (...args) => this.emit(event, ...args)); + } + const topologyConnect = async () => { + try { + await this.topology?.connect(options); + } + catch (error) { + this.topology?.close(); + throw error; + } + }; + if (this.autoEncrypter) { + await this.autoEncrypter?.init(); + await topologyConnect(); + await options.encrypter.connectInternalClient(); + } + else { + await topologyConnect(); + } + return this; + } + /** + * Close the client and its underlying connections + * + * @param force - Force close, emitting no events + */ + async close(force = false) { + // There's no way to set hasBeenClosed back to false + Object.defineProperty(this.s, 'hasBeenClosed', { + value: true, + enumerable: true, + configurable: false, + writable: false + }); + const activeSessionEnds = Array.from(this.s.activeSessions, session => session.endSession()); + this.s.activeSessions.clear(); + await Promise.all(activeSessionEnds); + if (this.topology == null) { + return; + } + // If we would attempt to select a server and get nothing back we short circuit + // to avoid the server selection timeout. + const selector = (0, server_selection_1.readPreferenceServerSelector)(read_preference_1.ReadPreference.primaryPreferred); + const topologyDescription = this.topology.description; + const serverDescriptions = Array.from(topologyDescription.servers.values()); + const servers = selector(topologyDescription, serverDescriptions); + if (servers.length !== 0) { + const endSessions = Array.from(this.s.sessionPool.sessions, ({ id }) => id); + if (endSessions.length !== 0) { + try { + await (0, execute_operation_1.executeOperation)(this, new run_command_1.RunAdminCommandOperation({ endSessions }, { readPreference: read_preference_1.ReadPreference.primaryPreferred, noResponse: true })); + } + catch (error) { + (0, utils_1.squashError)(error); + } + } + } + // clear out references to old topology + const topology = this.topology; + this.topology = undefined; + topology.close(); + const { encrypter } = this[kOptions]; + if (encrypter) { + await encrypter.close(this, force); + } + } + /** + * Create a new Db instance sharing the current socket connections. + * + * @param dbName - The name of the database we want to use. If not provided, use database name from connection string. + * @param options - Optional settings for Db construction + */ + db(dbName, options) { + options = options ?? {}; + // Default to db from connection string if not provided + if (!dbName) { + dbName = this.options.dbName; + } + // Copy the options and add out internal override of the not shared flag + const finalOptions = Object.assign({}, this[kOptions], options); + // Return the db object + const db = new db_1.Db(this, dbName, finalOptions); + // Return the database + return db; + } + /** + * Connect to MongoDB using a url + * + * @remarks + * The programmatically provided options take precedence over the URI options. + * + * @see https://www.mongodb.com/docs/manual/reference/connection-string/ + */ + static async connect(url, options) { + const client = new this(url, options); + return await client.connect(); + } + /** + * Creates a new ClientSession. When using the returned session in an operation + * a corresponding ServerSession will be created. + * + * @remarks + * A ClientSession instance may only be passed to operations being performed on the same + * MongoClient it was started from. + */ + startSession(options) { + const session = new sessions_1.ClientSession(this, this.s.sessionPool, { explicit: true, ...options }, this[kOptions]); + this.s.activeSessions.add(session); + session.once('ended', () => { + this.s.activeSessions.delete(session); + }); + return session; + } + async withSession(optionsOrExecutor, executor) { + const options = { + // Always define an owner + owner: Symbol(), + // If it's an object inherit the options + ...(typeof optionsOrExecutor === 'object' ? optionsOrExecutor : {}) + }; + const withSessionCallback = typeof optionsOrExecutor === 'function' ? optionsOrExecutor : executor; + if (withSessionCallback == null) { + throw new error_1.MongoInvalidArgumentError('Missing required callback parameter'); + } + const session = this.startSession(options); + try { + return await withSessionCallback(session); + } + finally { + try { + await session.endSession(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + } + } + /** + * Create a new Change Stream, watching for new changes (insertions, updates, + * replacements, deletions, and invalidations) in this cluster. Will ignore all + * changes to system collections, as well as the local, admin, and config databases. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to provide the schema that may be defined for all the data within the current cluster + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TSchema - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch(pipeline = [], options = {}) { + // Allow optionally not specifying a pipeline + if (!Array.isArray(pipeline)) { + options = pipeline; + pipeline = []; + } + return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options)); + } +} +exports.MongoClient = MongoClient; +//# sourceMappingURL=mongo_client.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client.js.map new file mode 100644 index 000000000..788c8b00c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client_auth_providers.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client_auth_providers.js new file mode 100644 index 000000000..56b5a4f3e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client_auth_providers.js @@ -0,0 +1,55 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoClientAuthProviders = void 0; +const gssapi_1 = require("./cmap/auth/gssapi"); +const mongocr_1 = require("./cmap/auth/mongocr"); +const mongodb_aws_1 = require("./cmap/auth/mongodb_aws"); +const mongodb_oidc_1 = require("./cmap/auth/mongodb_oidc"); +const plain_1 = require("./cmap/auth/plain"); +const providers_1 = require("./cmap/auth/providers"); +const scram_1 = require("./cmap/auth/scram"); +const x509_1 = require("./cmap/auth/x509"); +const error_1 = require("./error"); +/** @internal */ +const AUTH_PROVIDERS = new Map([ + [providers_1.AuthMechanism.MONGODB_AWS, () => new mongodb_aws_1.MongoDBAWS()], + [providers_1.AuthMechanism.MONGODB_CR, () => new mongocr_1.MongoCR()], + [providers_1.AuthMechanism.MONGODB_GSSAPI, () => new gssapi_1.GSSAPI()], + [providers_1.AuthMechanism.MONGODB_OIDC, () => new mongodb_oidc_1.MongoDBOIDC()], + [providers_1.AuthMechanism.MONGODB_PLAIN, () => new plain_1.Plain()], + [providers_1.AuthMechanism.MONGODB_SCRAM_SHA1, () => new scram_1.ScramSHA1()], + [providers_1.AuthMechanism.MONGODB_SCRAM_SHA256, () => new scram_1.ScramSHA256()], + [providers_1.AuthMechanism.MONGODB_X509, () => new x509_1.X509()] +]); +/** + * Create a set of providers per client + * to avoid sharing the provider's cache between different clients. + * @internal + */ +class MongoClientAuthProviders { + constructor() { + this.existingProviders = new Map(); + } + /** + * Get or create an authentication provider based on the provided mechanism. + * We don't want to create all providers at once, as some providers may not be used. + * @param name - The name of the provider to get or create. + * @returns The provider. + * @throws MongoInvalidArgumentError if the mechanism is not supported. + * @internal + */ + getOrCreateProvider(name) { + const authProvider = this.existingProviders.get(name); + if (authProvider) { + return authProvider; + } + const provider = AUTH_PROVIDERS.get(name)?.(); + if (!provider) { + throw new error_1.MongoInvalidArgumentError(`authMechanism ${name} not supported`); + } + this.existingProviders.set(name, provider); + return provider; + } +} +exports.MongoClientAuthProviders = MongoClientAuthProviders; +//# sourceMappingURL=mongo_client_auth_providers.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client_auth_providers.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client_auth_providers.js.map new file mode 100644 index 000000000..556865f06 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_client_auth_providers.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_logger.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_logger.js new file mode 100644 index 000000000..80d1cf562 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_logger.js @@ -0,0 +1,551 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.MongoLogger = exports.defaultLogTransform = exports.stringifyWithMaxLen = exports.createStdioLogger = exports.parseSeverityFromString = exports.MongoLoggableComponent = exports.SEVERITY_LEVEL_MAP = exports.DEFAULT_MAX_DOCUMENT_LENGTH = exports.SeverityLevel = void 0; +const util_1 = require("util"); +const bson_1 = require("./bson"); +const constants_1 = require("./constants"); +const utils_1 = require("./utils"); +/** @internal */ +exports.SeverityLevel = Object.freeze({ + EMERGENCY: 'emergency', + ALERT: 'alert', + CRITICAL: 'critical', + ERROR: 'error', + WARNING: 'warn', + NOTICE: 'notice', + INFORMATIONAL: 'info', + DEBUG: 'debug', + TRACE: 'trace', + OFF: 'off' +}); +/** @internal */ +exports.DEFAULT_MAX_DOCUMENT_LENGTH = 1000; +/** @internal */ +class SeverityLevelMap extends Map { + constructor(entries) { + const newEntries = []; + for (const [level, value] of entries) { + newEntries.push([value, level]); + } + newEntries.push(...entries); + super(newEntries); + } + getNumericSeverityLevel(severity) { + return this.get(severity); + } + getSeverityLevelName(level) { + return this.get(level); + } +} +/** @internal */ +exports.SEVERITY_LEVEL_MAP = new SeverityLevelMap([ + [exports.SeverityLevel.OFF, -Infinity], + [exports.SeverityLevel.EMERGENCY, 0], + [exports.SeverityLevel.ALERT, 1], + [exports.SeverityLevel.CRITICAL, 2], + [exports.SeverityLevel.ERROR, 3], + [exports.SeverityLevel.WARNING, 4], + [exports.SeverityLevel.NOTICE, 5], + [exports.SeverityLevel.INFORMATIONAL, 6], + [exports.SeverityLevel.DEBUG, 7], + [exports.SeverityLevel.TRACE, 8] +]); +/** @internal */ +exports.MongoLoggableComponent = Object.freeze({ + COMMAND: 'command', + TOPOLOGY: 'topology', + SERVER_SELECTION: 'serverSelection', + CONNECTION: 'connection', + CLIENT: 'client' +}); +/** + * Parses a string as one of SeverityLevel + * @internal + * + * @param s - the value to be parsed + * @returns one of SeverityLevel if value can be parsed as such, otherwise null + */ +function parseSeverityFromString(s) { + const validSeverities = Object.values(exports.SeverityLevel); + const lowerSeverity = s?.toLowerCase(); + if (lowerSeverity != null && validSeverities.includes(lowerSeverity)) { + return lowerSeverity; + } + return null; +} +exports.parseSeverityFromString = parseSeverityFromString; +/** @internal */ +function createStdioLogger(stream) { + return { + write: (0, util_1.promisify)((log, cb) => { + const logLine = (0, util_1.inspect)(log, { compact: true, breakLength: Infinity }); + stream.write(`${logLine}\n`, 'utf-8', cb); + return; + }) + }; +} +exports.createStdioLogger = createStdioLogger; +/** + * resolves the MONGODB_LOG_PATH and mongodbLogPath options from the environment and the + * mongo client options respectively. The mongodbLogPath can be either 'stdout', 'stderr', a NodeJS + * Writable or an object which has a `write` method with the signature: + * ```ts + * write(log: Log): void + * ``` + * + * @returns the MongoDBLogWritable object to write logs to + */ +function resolveLogPath({ MONGODB_LOG_PATH }, { mongodbLogPath }) { + if (typeof mongodbLogPath === 'string' && /^stderr$/i.test(mongodbLogPath)) { + return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true }; + } + if (typeof mongodbLogPath === 'string' && /^stdout$/i.test(mongodbLogPath)) { + return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false }; + } + if (typeof mongodbLogPath === 'object' && typeof mongodbLogPath?.write === 'function') { + return { mongodbLogPath: mongodbLogPath, mongodbLogPathIsStdErr: false }; + } + if (MONGODB_LOG_PATH && /^stderr$/i.test(MONGODB_LOG_PATH)) { + return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true }; + } + if (MONGODB_LOG_PATH && /^stdout$/i.test(MONGODB_LOG_PATH)) { + return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false }; + } + return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true }; +} +function resolveSeverityConfiguration(clientOption, environmentOption, defaultSeverity) { + return (parseSeverityFromString(clientOption) ?? + parseSeverityFromString(environmentOption) ?? + defaultSeverity); +} +function compareSeverity(s0, s1) { + const s0Num = exports.SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s0); + const s1Num = exports.SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s1); + return s0Num < s1Num ? -1 : s0Num > s1Num ? 1 : 0; +} +/** @internal */ +function stringifyWithMaxLen(value, maxDocumentLength, options = {}) { + let strToTruncate = ''; + if (typeof value === 'string') { + strToTruncate = value; + } + else if (typeof value === 'function') { + strToTruncate = value.name; + } + else { + try { + strToTruncate = bson_1.EJSON.stringify(value, options); + } + catch (e) { + strToTruncate = `Extended JSON serialization failed with: ${e.message}`; + } + } + // handle truncation that occurs in the middle of multi-byte codepoints + if (maxDocumentLength !== 0 && + strToTruncate.length > maxDocumentLength && + strToTruncate.charCodeAt(maxDocumentLength - 1) !== + strToTruncate.codePointAt(maxDocumentLength - 1)) { + maxDocumentLength--; + if (maxDocumentLength === 0) { + return ''; + } + } + return maxDocumentLength !== 0 && strToTruncate.length > maxDocumentLength + ? `${strToTruncate.slice(0, maxDocumentLength)}...` + : strToTruncate; +} +exports.stringifyWithMaxLen = stringifyWithMaxLen; +function isLogConvertible(obj) { + const objAsLogConvertible = obj; + // eslint-disable-next-line no-restricted-syntax + return objAsLogConvertible.toLog !== undefined && typeof objAsLogConvertible.toLog === 'function'; +} +function attachServerSelectionFields(log, serverSelectionEvent, maxDocumentLength = exports.DEFAULT_MAX_DOCUMENT_LENGTH) { + const { selector, operation, topologyDescription, message } = serverSelectionEvent; + log.selector = stringifyWithMaxLen(selector, maxDocumentLength); + log.operation = operation; + log.topologyDescription = stringifyWithMaxLen(topologyDescription, maxDocumentLength); + log.message = message; + return log; +} +function attachCommandFields(log, commandEvent) { + log.commandName = commandEvent.commandName; + log.requestId = commandEvent.requestId; + log.driverConnectionId = commandEvent.connectionId; + const { host, port } = utils_1.HostAddress.fromString(commandEvent.address).toHostPort(); + log.serverHost = host; + log.serverPort = port; + if (commandEvent?.serviceId) { + log.serviceId = commandEvent.serviceId.toHexString(); + } + log.databaseName = commandEvent.databaseName; + log.serverConnectionId = commandEvent.serverConnectionId; + return log; +} +function attachConnectionFields(log, event) { + const { host, port } = utils_1.HostAddress.fromString(event.address).toHostPort(); + log.serverHost = host; + log.serverPort = port; + return log; +} +function attachSDAMFields(log, sdamEvent) { + log.topologyId = sdamEvent.topologyId; + return log; +} +function attachServerHeartbeatFields(log, serverHeartbeatEvent) { + const { awaited, connectionId } = serverHeartbeatEvent; + log.awaited = awaited; + log.driverConnectionId = serverHeartbeatEvent.connectionId; + const { host, port } = utils_1.HostAddress.fromString(connectionId).toHostPort(); + log.serverHost = host; + log.serverPort = port; + return log; +} +/** @internal */ +function defaultLogTransform(logObject, maxDocumentLength = exports.DEFAULT_MAX_DOCUMENT_LENGTH) { + let log = Object.create(null); + switch (logObject.name) { + case constants_1.SERVER_SELECTION_STARTED: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + return log; + case constants_1.SERVER_SELECTION_FAILED: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + log.failure = logObject.failure?.message; + return log; + case constants_1.SERVER_SELECTION_SUCCEEDED: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + log.serverHost = logObject.serverHost; + log.serverPort = logObject.serverPort; + return log; + case constants_1.WAITING_FOR_SUITABLE_SERVER: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + log.remainingTimeMS = logObject.remainingTimeMS; + return log; + case constants_1.COMMAND_STARTED: + log = attachCommandFields(log, logObject); + log.message = 'Command started'; + log.command = stringifyWithMaxLen(logObject.command, maxDocumentLength, { relaxed: true }); + log.databaseName = logObject.databaseName; + return log; + case constants_1.COMMAND_SUCCEEDED: + log = attachCommandFields(log, logObject); + log.message = 'Command succeeded'; + log.durationMS = logObject.duration; + log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true }); + return log; + case constants_1.COMMAND_FAILED: + log = attachCommandFields(log, logObject); + log.message = 'Command failed'; + log.durationMS = logObject.duration; + log.failure = logObject.failure?.message ?? '(redacted)'; + return log; + case constants_1.CONNECTION_POOL_CREATED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool created'; + if (logObject.options) { + const { maxIdleTimeMS, minPoolSize, maxPoolSize, maxConnecting, waitQueueTimeoutMS } = logObject.options; + log = { + ...log, + maxIdleTimeMS, + minPoolSize, + maxPoolSize, + maxConnecting, + waitQueueTimeoutMS + }; + } + return log; + case constants_1.CONNECTION_POOL_READY: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool ready'; + return log; + case constants_1.CONNECTION_POOL_CLEARED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool cleared'; + if (logObject.serviceId?._bsontype === 'ObjectId') { + log.serviceId = logObject.serviceId?.toHexString(); + } + return log; + case constants_1.CONNECTION_POOL_CLOSED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool closed'; + return log; + case constants_1.CONNECTION_CREATED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection created'; + log.driverConnectionId = logObject.connectionId; + return log; + case constants_1.CONNECTION_READY: + log = attachConnectionFields(log, logObject); + log.message = 'Connection ready'; + log.driverConnectionId = logObject.connectionId; + return log; + case constants_1.CONNECTION_CLOSED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection closed'; + log.driverConnectionId = logObject.connectionId; + switch (logObject.reason) { + case 'stale': + log.reason = 'Connection became stale because the pool was cleared'; + break; + case 'idle': + log.reason = + 'Connection has been available but unused for longer than the configured max idle time'; + break; + case 'error': + log.reason = 'An error occurred while using the connection'; + if (logObject.error) { + log.error = logObject.error; + } + break; + case 'poolClosed': + log.reason = 'Connection pool was closed'; + break; + default: + log.reason = `Unknown close reason: ${logObject.reason}`; + } + return log; + case constants_1.CONNECTION_CHECK_OUT_STARTED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checkout started'; + return log; + case constants_1.CONNECTION_CHECK_OUT_FAILED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checkout failed'; + switch (logObject.reason) { + case 'poolClosed': + log.reason = 'Connection pool was closed'; + break; + case 'timeout': + log.reason = 'Wait queue timeout elapsed without a connection becoming available'; + break; + case 'connectionError': + log.reason = 'An error occurred while trying to establish a new connection'; + if (logObject.error) { + log.error = logObject.error; + } + break; + default: + log.reason = `Unknown close reason: ${logObject.reason}`; + } + return log; + case constants_1.CONNECTION_CHECKED_OUT: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checked out'; + log.driverConnectionId = logObject.connectionId; + return log; + case constants_1.CONNECTION_CHECKED_IN: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checked in'; + log.driverConnectionId = logObject.connectionId; + return log; + case constants_1.SERVER_OPENING: + log = attachSDAMFields(log, logObject); + log = attachConnectionFields(log, logObject); + log.message = 'Starting server monitoring'; + return log; + case constants_1.SERVER_CLOSED: + log = attachSDAMFields(log, logObject); + log = attachConnectionFields(log, logObject); + log.message = 'Stopped server monitoring'; + return log; + case constants_1.SERVER_HEARTBEAT_STARTED: + log = attachSDAMFields(log, logObject); + log = attachServerHeartbeatFields(log, logObject); + log.message = 'Server heartbeat started'; + return log; + case constants_1.SERVER_HEARTBEAT_SUCCEEDED: + log = attachSDAMFields(log, logObject); + log = attachServerHeartbeatFields(log, logObject); + log.message = 'Server heartbeat succeeded'; + log.durationMS = logObject.duration; + log.serverConnectionId = logObject.serverConnectionId; + log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true }); + return log; + case constants_1.SERVER_HEARTBEAT_FAILED: + log = attachSDAMFields(log, logObject); + log = attachServerHeartbeatFields(log, logObject); + log.message = 'Server heartbeat failed'; + log.durationMS = logObject.duration; + log.failure = logObject.failure?.message; + return log; + case constants_1.TOPOLOGY_OPENING: + log = attachSDAMFields(log, logObject); + log.message = 'Starting topology monitoring'; + return log; + case constants_1.TOPOLOGY_CLOSED: + log = attachSDAMFields(log, logObject); + log.message = 'Stopped topology monitoring'; + return log; + case constants_1.TOPOLOGY_DESCRIPTION_CHANGED: + log = attachSDAMFields(log, logObject); + log.message = 'Topology description changed'; + log.previousDescription = log.reply = stringifyWithMaxLen(logObject.previousDescription, maxDocumentLength); + log.newDescription = log.reply = stringifyWithMaxLen(logObject.newDescription, maxDocumentLength); + return log; + default: + for (const [key, value] of Object.entries(logObject)) { + if (value != null) + log[key] = value; + } + } + return log; +} +exports.defaultLogTransform = defaultLogTransform; +/** @internal */ +class MongoLogger { + constructor(options) { + this.pendingLog = null; + /** + * This method should be used when logging errors that do not have a public driver API for + * reporting errors. + */ + this.error = this.log.bind(this, 'error'); + /** + * This method should be used to log situations where undesirable application behaviour might + * occur. For example, failing to end sessions on `MongoClient.close`. + */ + this.warn = this.log.bind(this, 'warn'); + /** + * This method should be used to report high-level information about normal driver behaviour. + * For example, the creation of a `MongoClient`. + */ + this.info = this.log.bind(this, 'info'); + /** + * This method should be used to report information that would be helpful when debugging an + * application. For example, a command starting, succeeding or failing. + */ + this.debug = this.log.bind(this, 'debug'); + /** + * This method should be used to report fine-grained details related to logic flow. For example, + * entering and exiting a function body. + */ + this.trace = this.log.bind(this, 'trace'); + this.componentSeverities = options.componentSeverities; + this.maxDocumentLength = options.maxDocumentLength; + this.logDestination = options.logDestination; + this.logDestinationIsStdErr = options.logDestinationIsStdErr; + this.severities = this.createLoggingSeverities(); + } + createLoggingSeverities() { + const severities = Object(); + for (const component of Object.values(exports.MongoLoggableComponent)) { + severities[component] = {}; + for (const severityLevel of Object.values(exports.SeverityLevel)) { + severities[component][severityLevel] = + compareSeverity(severityLevel, this.componentSeverities[component]) <= 0; + } + } + return severities; + } + turnOffSeverities() { + for (const component of Object.values(exports.MongoLoggableComponent)) { + this.componentSeverities[component] = exports.SeverityLevel.OFF; + for (const severityLevel of Object.values(exports.SeverityLevel)) { + this.severities[component][severityLevel] = false; + } + } + } + logWriteFailureHandler(error) { + if (this.logDestinationIsStdErr) { + this.turnOffSeverities(); + this.clearPendingLog(); + return; + } + this.logDestination = createStdioLogger(process.stderr); + this.logDestinationIsStdErr = true; + this.clearPendingLog(); + this.error(exports.MongoLoggableComponent.CLIENT, { + toLog: function () { + return { + message: 'User input for mongodbLogPath is now invalid. Logging is halted.', + error: error.message + }; + } + }); + this.turnOffSeverities(); + this.clearPendingLog(); + } + clearPendingLog() { + this.pendingLog = null; + } + willLog(component, severity) { + if (severity === exports.SeverityLevel.OFF) + return false; + return this.severities[component][severity]; + } + log(severity, component, message) { + if (!this.willLog(component, severity)) + return; + let logMessage = { t: new Date(), c: component, s: severity }; + if (typeof message === 'string') { + logMessage.message = message; + } + else if (typeof message === 'object') { + if (isLogConvertible(message)) { + logMessage = { ...logMessage, ...message.toLog() }; + } + else { + logMessage = { ...logMessage, ...defaultLogTransform(message, this.maxDocumentLength) }; + } + } + if ((0, utils_1.isPromiseLike)(this.pendingLog)) { + this.pendingLog = this.pendingLog + // eslint-disable-next-line github/no-then + .then(() => this.logDestination.write(logMessage)) + // eslint-disable-next-line github/no-then + .then(this.clearPendingLog.bind(this), this.logWriteFailureHandler.bind(this)); + return; + } + try { + const logResult = this.logDestination.write(logMessage); + if ((0, utils_1.isPromiseLike)(logResult)) { + // eslint-disable-next-line github/no-then + this.pendingLog = logResult.then(this.clearPendingLog.bind(this), this.logWriteFailureHandler.bind(this)); + } + } + catch (error) { + this.logWriteFailureHandler(error); + } + } + /** + * Merges options set through environment variables and the MongoClient, preferring environment + * variables when both are set, and substituting defaults for values not set. Options set in + * constructor take precedence over both environment variables and MongoClient options. + * + * @remarks + * When parsing component severity levels, invalid values are treated as unset and replaced with + * the default severity. + * + * @param envOptions - options set for the logger from the environment + * @param clientOptions - options set for the logger in the MongoClient options + * @returns a MongoLoggerOptions object to be used when instantiating a new MongoLogger + */ + static resolveOptions(envOptions, clientOptions) { + // client options take precedence over env options + const resolvedLogPath = resolveLogPath(envOptions, clientOptions); + const combinedOptions = { + ...envOptions, + ...clientOptions, + mongodbLogPath: resolvedLogPath.mongodbLogPath, + mongodbLogPathIsStdErr: resolvedLogPath.mongodbLogPathIsStdErr + }; + const defaultSeverity = resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.default, combinedOptions.MONGODB_LOG_ALL, exports.SeverityLevel.OFF); + return { + componentSeverities: { + command: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.command, combinedOptions.MONGODB_LOG_COMMAND, defaultSeverity), + topology: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.topology, combinedOptions.MONGODB_LOG_TOPOLOGY, defaultSeverity), + serverSelection: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.serverSelection, combinedOptions.MONGODB_LOG_SERVER_SELECTION, defaultSeverity), + connection: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.connection, combinedOptions.MONGODB_LOG_CONNECTION, defaultSeverity), + client: resolveSeverityConfiguration(combinedOptions.mongodbLogComponentSeverities?.client, combinedOptions.MONGODB_LOG_CLIENT, defaultSeverity), + default: defaultSeverity + }, + maxDocumentLength: combinedOptions.mongodbLogMaxDocumentLength ?? + (0, utils_1.parseUnsignedInteger)(combinedOptions.MONGODB_LOG_MAX_DOCUMENT_LENGTH) ?? + 1000, + logDestination: combinedOptions.mongodbLogPath, + logDestinationIsStdErr: combinedOptions.mongodbLogPathIsStdErr + }; + } +} +exports.MongoLogger = MongoLogger; +//# sourceMappingURL=mongo_logger.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_logger.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_logger.js.map new file mode 100644 index 000000000..789609cbb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_logger.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_types.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_types.js new file mode 100644 index 000000000..bc4fefd68 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_types.js @@ -0,0 +1,48 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CancellationToken = exports.TypedEventEmitter = void 0; +const events_1 = require("events"); +const mongo_logger_1 = require("./mongo_logger"); +/** + * Typescript type safe event emitter + * @public + */ +class TypedEventEmitter extends events_1.EventEmitter { + /** @internal */ + emitAndLog(event, ...args) { + this.emit(event, ...args); + if (this.component) + this.mongoLogger?.debug(this.component, args[0]); + } + /** @internal */ + emitAndLogHeartbeat(event, topologyId, serverConnectionId, ...args) { + this.emit(event, ...args); + if (this.component) { + const loggableHeartbeatEvent = { + topologyId: topologyId, + serverConnectionId: serverConnectionId ?? null, + ...args[0] + }; + this.mongoLogger?.debug(this.component, loggableHeartbeatEvent); + } + } + /** @internal */ + emitAndLogCommand(monitorCommands, event, databaseName, connectionEstablished, ...args) { + if (monitorCommands) { + this.emit(event, ...args); + } + if (connectionEstablished) { + const loggableCommandEvent = { + databaseName: databaseName, + ...args[0] + }; + this.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.COMMAND, loggableCommandEvent); + } + } +} +exports.TypedEventEmitter = TypedEventEmitter; +/** @public */ +class CancellationToken extends TypedEventEmitter { +} +exports.CancellationToken = CancellationToken; +//# sourceMappingURL=mongo_types.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_types.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_types.js.map new file mode 100644 index 000000000..ac976cc31 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/mongo_types.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/aggregate.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/aggregate.js new file mode 100644 index 000000000..6a9445291 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/aggregate.js @@ -0,0 +1,96 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.AggregateOperation = exports.DB_AGGREGATE_COLLECTION = void 0; +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const write_concern_1 = require("../write_concern"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +exports.DB_AGGREGATE_COLLECTION = 1; +const MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT = 8; +/** @internal */ +class AggregateOperation extends command_1.CommandOperation { + constructor(ns, pipeline, options) { + super(undefined, { ...options, dbName: ns.db }); + this.options = { ...options }; + // Covers when ns.collection is null, undefined or the empty string, use DB_AGGREGATE_COLLECTION + this.target = ns.collection || exports.DB_AGGREGATE_COLLECTION; + this.pipeline = pipeline; + // determine if we have a write stage, override read preference if so + this.hasWriteStage = false; + if (typeof options?.out === 'string') { + this.pipeline = this.pipeline.concat({ $out: options.out }); + this.hasWriteStage = true; + } + else if (pipeline.length > 0) { + const finalStage = pipeline[pipeline.length - 1]; + if (finalStage.$out || finalStage.$merge) { + this.hasWriteStage = true; + } + } + if (this.hasWriteStage) { + this.trySecondaryWrite = true; + } + else { + delete this.options.writeConcern; + } + if (this.explain && this.writeConcern) { + throw new error_1.MongoInvalidArgumentError('Option "explain" cannot be used on an aggregate call with writeConcern'); + } + if (options?.cursor != null && typeof options.cursor !== 'object') { + throw new error_1.MongoInvalidArgumentError('Cursor options must be an object'); + } + } + get commandName() { + return 'aggregate'; + } + get canRetryRead() { + return !this.hasWriteStage; + } + addToPipeline(stage) { + this.pipeline.push(stage); + } + async execute(server, session) { + const options = this.options; + const serverWireVersion = (0, utils_1.maxWireVersion)(server); + const command = { aggregate: this.target, pipeline: this.pipeline }; + if (this.hasWriteStage && serverWireVersion < MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT) { + this.readConcern = undefined; + } + if (this.hasWriteStage && this.writeConcern) { + write_concern_1.WriteConcern.apply(command, this.writeConcern); + } + if (options.bypassDocumentValidation === true) { + command.bypassDocumentValidation = options.bypassDocumentValidation; + } + if (typeof options.allowDiskUse === 'boolean') { + command.allowDiskUse = options.allowDiskUse; + } + if (options.hint) { + command.hint = options.hint; + } + if (options.let) { + command.let = options.let; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + command.cursor = options.cursor || {}; + if (options.batchSize && !this.hasWriteStage) { + command.cursor.batchSize = options.batchSize; + } + const res = await super.executeCommand(server, session, command); + return res; + } +} +exports.AggregateOperation = AggregateOperation; +(0, operation_1.defineAspects)(AggregateOperation, [ + operation_1.Aspect.READ_OPERATION, + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.EXPLAINABLE, + operation_1.Aspect.CURSOR_CREATING +]); +//# sourceMappingURL=aggregate.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/aggregate.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/aggregate.js.map new file mode 100644 index 000000000..a223166e4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/aggregate.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/bulk_write.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/bulk_write.js new file mode 100644 index 000000000..92f1e938c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/bulk_write.js @@ -0,0 +1,35 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.BulkWriteOperation = void 0; +const operation_1 = require("./operation"); +/** @internal */ +class BulkWriteOperation extends operation_1.AbstractOperation { + constructor(collection, operations, options) { + super(options); + this.options = options; + this.collection = collection; + this.operations = operations; + } + get commandName() { + return 'bulkWrite'; + } + async execute(server, session) { + const coll = this.collection; + const operations = this.operations; + const options = { ...this.options, ...this.bsonOptions, readPreference: this.readPreference }; + // Create the bulk operation + const bulk = options.ordered === false + ? coll.initializeUnorderedBulkOp(options) + : coll.initializeOrderedBulkOp(options); + // for each op go through and add to the bulk + for (let i = 0; i < operations.length; i++) { + bulk.raw(operations[i]); + } + // Execute the bulk + const result = await bulk.execute({ ...options, session }); + return result; + } +} +exports.BulkWriteOperation = BulkWriteOperation; +(0, operation_1.defineAspects)(BulkWriteOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=bulk_write.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/bulk_write.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/bulk_write.js.map new file mode 100644 index 000000000..1019ea9b8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/bulk_write.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/collections.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/collections.js new file mode 100644 index 000000000..bd627b9d6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/collections.js @@ -0,0 +1,33 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CollectionsOperation = void 0; +const collection_1 = require("../collection"); +const operation_1 = require("./operation"); +/** @internal */ +class CollectionsOperation extends operation_1.AbstractOperation { + constructor(db, options) { + super(options); + this.options = options; + this.db = db; + } + get commandName() { + return 'listCollections'; + } + async execute(server, session) { + // Let's get the collection names + const documents = await this.db + .listCollections({}, { ...this.options, nameOnly: true, readPreference: this.readPreference, session }) + .toArray(); + const collections = []; + for (const { name } of documents) { + if (!name.includes('$')) { + // Filter collections removing any illegal ones + collections.push(new collection_1.Collection(this.db, name, this.db.s.options)); + } + } + // Return the collection objects + return collections; + } +} +exports.CollectionsOperation = CollectionsOperation; +//# sourceMappingURL=collections.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/collections.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/collections.js.map new file mode 100644 index 000000000..d2739c68e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/collections.js.map @@ -0,0 +1 @@ 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--git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/command.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/command.js new file mode 100644 index 000000000..380bd7e6a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/command.js @@ -0,0 +1,78 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CommandOperation = void 0; +const error_1 = require("../error"); +const explain_1 = require("../explain"); +const read_concern_1 = require("../read_concern"); +const server_selection_1 = require("../sdam/server_selection"); +const utils_1 = require("../utils"); +const write_concern_1 = require("../write_concern"); +const operation_1 = require("./operation"); +/** @internal */ +class CommandOperation extends operation_1.AbstractOperation { + constructor(parent, options) { + super(options); + this.options = options ?? {}; + // NOTE: this was explicitly added for the add/remove user operations, it's likely + // something we'd want to reconsider. Perhaps those commands can use `Admin` + // as a parent? + const dbNameOverride = options?.dbName || options?.authdb; + if (dbNameOverride) { + this.ns = new utils_1.MongoDBNamespace(dbNameOverride, '$cmd'); + } + else { + this.ns = parent + ? parent.s.namespace.withCollection('$cmd') + : new utils_1.MongoDBNamespace('admin', '$cmd'); + } + this.readConcern = read_concern_1.ReadConcern.fromOptions(options); + this.writeConcern = write_concern_1.WriteConcern.fromOptions(options); + if (this.hasAspect(operation_1.Aspect.EXPLAINABLE)) { + this.explain = explain_1.Explain.fromOptions(options); + } + else if (options?.explain != null) { + throw new error_1.MongoInvalidArgumentError(`Option "explain" is not supported on this command`); + } + } + get canRetryWrite() { + if (this.hasAspect(operation_1.Aspect.EXPLAINABLE)) { + return this.explain == null; + } + return true; + } + async executeCommand(server, session, cmd) { + // TODO: consider making this a non-enumerable property + this.server = server; + const options = { + ...this.options, + ...this.bsonOptions, + readPreference: this.readPreference, + session + }; + const serverWireVersion = (0, utils_1.maxWireVersion)(server); + const inTransaction = this.session && this.session.inTransaction(); + if (this.readConcern && (0, utils_1.commandSupportsReadConcern)(cmd) && !inTransaction) { + Object.assign(cmd, { readConcern: this.readConcern }); + } + if (this.trySecondaryWrite && serverWireVersion < server_selection_1.MIN_SECONDARY_WRITE_WIRE_VERSION) { + options.omitReadPreference = true; + } + if (this.writeConcern && this.hasAspect(operation_1.Aspect.WRITE_OPERATION) && !inTransaction) { + write_concern_1.WriteConcern.apply(cmd, this.writeConcern); + } + if (options.collation && + typeof options.collation === 'object' && + !this.hasAspect(operation_1.Aspect.SKIP_COLLATION)) { + Object.assign(cmd, { collation: options.collation }); + } + if (typeof options.maxTimeMS === 'number') { + cmd.maxTimeMS = options.maxTimeMS; + } + if (this.hasAspect(operation_1.Aspect.EXPLAINABLE) && this.explain) { + cmd = (0, utils_1.decorateWithExplain)(cmd, this.explain); + } + return await server.command(this.ns, cmd, options); + } +} +exports.CommandOperation = CommandOperation; +//# sourceMappingURL=command.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/command.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/command.js.map new file mode 100644 index 000000000..a05a30bad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/command.js.map @@ -0,0 +1 @@ +{"version":3,"file":"command.js","sourceRoot":"","sources":["../../src/operations/command.ts"],"names":[],"mappings":";;;AACA,oCAAqD;AACrD,wCAA0D;AAC1D,kDAA8C;AAG9C,+DAA4E;AAE5E,oCAKkB;AAClB,oDAA0E;AAE1E,2CAA+E;AAoD/E,gBAAgB;AAChB,MAAsB,gBAAoB,SAAQ,6BAAoB;IAMpE,YAAY,MAAwB,EAAE,OAAiC;QACrE,KAAK,CAAC,OAAO,CAAC,CAAC;QACf,IAAI,CAAC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QAE7B,kFAAkF;QAClF,kFAAkF;QAClF,qBAAqB;QACrB,MAAM,cAAc,GAAG,OAAO,EAAE,MAAM,IAAI,OAAO,EAAE,MAAM,CAAC;QAC1D,IAAI,cAAc,EAAE;YAClB,IAAI,CAAC,EAAE,GAAG,IAAI,wBAAgB,CAAC,cAAc,EAAE,MAAM,CAAC,CAAC;SACxD;aAAM;YACL,IAAI,CAAC,EAAE,GAAG,MAAM;gBACd,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,SAAS,CAAC,cAAc,CAAC,MAAM,CAAC;gBAC3C,CAAC,CAAC,IAAI,wBAAgB,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;SAC3C;QAED,IAAI,CAAC,WAAW,GAAG,0BAAW,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;QACpD,IAAI,CAAC,YAAY,GAAG,4BAAY,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;QAEtD,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,WAAW,CAAC,EAAE;YACtC,IAAI,CAAC,OAAO,GAAG,iBAAO,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;SAC7C;aAAM,IAAI,OAAO,EAAE,OAAO,IAAI,IAAI,EAAE;YACnC,MAAM,IAAI,iCAAyB,CAAC,mDAAmD,CAAC,CAAC;SAC1F;IACH,CAAC;IAED,IAAa,aAAa;QACxB,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,WAAW,CAAC,EAAE;YACtC,OAAO,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC;SAC7B;QACD,OAAO,IAAI,CAAC;IACd,CAAC;IAED,KAAK,CAAC,cAAc,CAClB,MAAc,EACd,OAAkC,EAClC,GAAa;QAEb,uDAAuD;QACvD,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;QAErB,MAAM,OAAO,GAAG;YACd,GAAG,IAAI,CAAC,OAAO;YACf,GAAG,IAAI,CAAC,WAAW;YACnB,cAAc,EAAE,IAAI,CAAC,cAAc;YACnC,OAAO;SACR,CAAC;QAEF,MAAM,iBAAiB,GAAG,IAAA,sBAAc,EAAC,MAAM,CAAC,CAAC;QACjD,MAAM,aAAa,GAAG,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,aAAa,EAAE,CAAC;QAEnE,IAAI,IAAI,CAAC,WAAW,IAAI,IAAA,kCAA0B,EAAC,GAAG,CAAC,IAAI,CAAC,aAAa,EAAE;YACzE,MAAM,CAAC,MAAM,CAAC,GAAG,EAAE,EAAE,WAAW,EAAE,IAAI,CAAC,WAAW,EAAE,CAAC,CAAC;SACvD;QAED,IAAI,IAAI,CAAC,iBAAiB,IAAI,iBAAiB,GAAG,mDAAgC,EAAE;YAClF,OAAO,CAAC,kBAAkB,GAAG,IAAI,CAAC;SACnC;QAED,IAAI,IAAI,CAAC,YAAY,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,eAAe,CAAC,IAAI,CAAC,aAAa,EAAE;YACjF,4BAAY,CAAC,KAAK,CAAC,GAAG,EAAE,IAAI,CAAC,YAAY,CAAC,CAAC;SAC5C;QAED,IACE,OAAO,CAAC,SAAS;YACjB,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ;YACrC,CAAC,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,cAAc,CAAC,EACtC;YACA,MAAM,CAAC,MAAM,CAAC,GAAG,EAAE,EAAE,SAAS,EAAE,OAAO,CAAC,SAAS,EAAE,CAAC,CAAC;SACtD;QAED,IAAI,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE;YACzC,GAAG,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;SACnC;QAED,IAAI,IAAI,CAAC,SAAS,CAAC,kBAAM,CAAC,WAAW,CAAC,IAAI,IAAI,CAAC,OAAO,EAAE;YACtD,GAAG,GAAG,IAAA,2BAAmB,EAAC,GAAG,EAAE,IAAI,CAAC,OAAO,CAAC,CAAC;SAC9C;QAED,OAAO,MAAM,MAAM,CAAC,OAAO,CAAC,IAAI,CAAC,EAAE,EAAE,GAAG,EAAE,OAAO,CAAC,CAAC;IACrD,CAAC;CACF;AAvFD,4CAuFC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count.js new file mode 100644 index 000000000..067fe6e67 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count.js @@ -0,0 +1,41 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CountOperation = void 0; +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class CountOperation extends command_1.CommandOperation { + constructor(namespace, filter, options) { + super({ s: { namespace: namespace } }, options); + this.options = options; + this.collectionName = namespace.collection; + this.query = filter; + } + get commandName() { + return 'count'; + } + async execute(server, session) { + const options = this.options; + const cmd = { + count: this.collectionName, + query: this.query + }; + if (typeof options.limit === 'number') { + cmd.limit = options.limit; + } + if (typeof options.skip === 'number') { + cmd.skip = options.skip; + } + if (options.hint != null) { + cmd.hint = options.hint; + } + if (typeof options.maxTimeMS === 'number') { + cmd.maxTimeMS = options.maxTimeMS; + } + const result = await super.executeCommand(server, session, cmd); + return result ? result.n : 0; + } +} +exports.CountOperation = CountOperation; +(0, operation_1.defineAspects)(CountOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE]); +//# sourceMappingURL=count.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count.js.map new file mode 100644 index 000000000..3b3ec2195 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count.js.map @@ -0,0 +1 @@ +{"version":3,"file":"count.js","sourceRoot":"","sources":["../../src/operations/count.ts"],"names":[],"mappings":";;;AAKA,uCAA2E;AAC3E,2CAAoD;AAcpD,gBAAgB;AAChB,MAAa,cAAe,SAAQ,0BAAwB;IAK1D,YAAY,SAA2B,EAAE,MAAgB,EAAE,OAAqB;QAC9E,KAAK,CAAC,EAAE,CAAC,EAAE,EAAE,SAAS,EAAE,SAAS,EAAE,EAA2B,EAAE,OAAO,CAAC,CAAC;QAEzE,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,cAAc,GAAG,SAAS,CAAC,UAAU,CAAC;QAC3C,IAAI,CAAC,KAAK,GAAG,MAAM,CAAC;IACtB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,OAAgB,CAAC;IAC1B,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAC7B,MAAM,GAAG,GAAa;YACpB,KAAK,EAAE,IAAI,CAAC,cAAc;YAC1B,KAAK,EAAE,IAAI,CAAC,KAAK;SAClB,CAAC;QAEF,IAAI,OAAO,OAAO,CAAC,KAAK,KAAK,QAAQ,EAAE;YACrC,GAAG,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;SAC3B;QAED,IAAI,OAAO,OAAO,CAAC,IAAI,KAAK,QAAQ,EAAE;YACpC,GAAG,CAAC,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC;SACzB;QAED,IAAI,OAAO,CAAC,IAAI,IAAI,IAAI,EAAE;YACxB,GAAG,CAAC,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC;SACzB;QAED,IAAI,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE;YACzC,GAAG,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;SACnC;QAED,MAAM,MAAM,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,CAAC,CAAC;QAChE,OAAO,MAAM,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IAC/B,CAAC;CACF;AA3CD,wCA2CC;AAED,IAAA,yBAAa,EAAC,cAAc,EAAE,CAAC,kBAAM,CAAC,cAAc,EAAE,kBAAM,CAAC,SAAS,CAAC,CAAC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count_documents.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count_documents.js new file mode 100644 index 000000000..a70c80c59 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count_documents.js @@ -0,0 +1,31 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CountDocumentsOperation = void 0; +const aggregate_1 = require("./aggregate"); +/** @internal */ +class CountDocumentsOperation extends aggregate_1.AggregateOperation { + constructor(collection, query, options) { + const pipeline = []; + pipeline.push({ $match: query }); + if (typeof options.skip === 'number') { + pipeline.push({ $skip: options.skip }); + } + if (typeof options.limit === 'number') { + pipeline.push({ $limit: options.limit }); + } + pipeline.push({ $group: { _id: 1, n: { $sum: 1 } } }); + super(collection.s.namespace, pipeline, options); + } + async execute(server, session) { + const result = await super.execute(server, session); + // NOTE: We're avoiding creating a cursor here to reduce the callstack. + const response = result; + if (response.cursor == null || response.cursor.firstBatch == null) { + return 0; + } + const docs = response.cursor.firstBatch; + return docs.length ? docs[0].n : 0; + } +} +exports.CountDocumentsOperation = CountDocumentsOperation; +//# sourceMappingURL=count_documents.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count_documents.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count_documents.js.map new file mode 100644 index 000000000..4cf9f0f27 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/count_documents.js.map @@ -0,0 +1 @@ +{"version":3,"file":"count_documents.js","sourceRoot":"","sources":["../../src/operations/count_documents.ts"],"names":[],"mappings":";;;AAIA,2CAAwE;AAUxE,gBAAgB;AAChB,MAAa,uBAAwB,SAAQ,8BAA0B;IACrE,YAAY,UAAsB,EAAE,KAAe,EAAE,OAA8B;QACjF,MAAM,QAAQ,GAAG,EAAE,CAAC;QACpB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,EAAE,KAAK,EAAE,CAAC,CAAC;QAEjC,IAAI,OAAO,OAAO,CAAC,IAAI,KAAK,QAAQ,EAAE;YACpC,QAAQ,CAAC,IAAI,CAAC,EAAE,KAAK,EAAE,OAAO,CAAC,IAAI,EAAE,CAAC,CAAC;SACxC;QAED,IAAI,OAAO,OAAO,CAAC,KAAK,KAAK,QAAQ,EAAE;YACrC,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,EAAE,OAAO,CAAC,KAAK,EAAE,CAAC,CAAC;SAC1C;QAED,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,EAAE,EAAE,GAAG,EAAE,CAAC,EAAE,CAAC,EAAE,EAAE,IAAI,EAAE,CAAC,EAAE,EAAE,EAAE,CAAC,CAAC;QAEtD,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,SAAS,EAAE,QAAQ,EAAE,OAAO,CAAC,CAAC;IACnD,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,MAAM,GAAG,MAAM,KAAK,CAAC,OAAO,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC;QAEpD,uEAAuE;QACvE,MAAM,QAAQ,GAAG,MAA6B,CAAC;QAC/C,IAAI,QAAQ,CAAC,MAAM,IAAI,IAAI,IAAI,QAAQ,CAAC,MAAM,CAAC,UAAU,IAAI,IAAI,EAAE;YACjE,OAAO,CAAC,CAAC;SACV;QAED,MAAM,IAAI,GAAG,QAAQ,CAAC,MAAM,CAAC,UAAU,CAAC;QACxC,OAAO,IAAI,CAAC,MAAM,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IACrC,CAAC;CACF;AA9BD,0DA8BC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/create_collection.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/create_collection.js new file mode 100644 index 000000000..e7f97a9d4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/create_collection.js @@ -0,0 +1,102 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CreateCollectionOperation = void 0; +const constants_1 = require("../cmap/wire_protocol/constants"); +const collection_1 = require("../collection"); +const error_1 = require("../error"); +const command_1 = require("./command"); +const indexes_1 = require("./indexes"); +const operation_1 = require("./operation"); +const ILLEGAL_COMMAND_FIELDS = new Set([ + 'w', + 'wtimeout', + 'j', + 'fsync', + 'autoIndexId', + 'pkFactory', + 'raw', + 'readPreference', + 'session', + 'readConcern', + 'writeConcern', + 'raw', + 'fieldsAsRaw', + 'useBigInt64', + 'promoteLongs', + 'promoteValues', + 'promoteBuffers', + 'bsonRegExp', + 'serializeFunctions', + 'ignoreUndefined', + 'enableUtf8Validation' +]); +/* @internal */ +const INVALID_QE_VERSION = 'Driver support of Queryable Encryption is incompatible with server. Upgrade server to use Queryable Encryption.'; +/** @internal */ +class CreateCollectionOperation extends command_1.CommandOperation { + constructor(db, name, options = {}) { + super(db, options); + this.options = options; + this.db = db; + this.name = name; + } + get commandName() { + return 'create'; + } + async execute(server, session) { + const db = this.db; + const name = this.name; + const options = this.options; + const encryptedFields = options.encryptedFields ?? + db.client.options.autoEncryption?.encryptedFieldsMap?.[`${db.databaseName}.${name}`]; + if (encryptedFields) { + // Creating a QE collection required min server of 7.0.0 + // TODO(NODE-5353): Get wire version information from connection. + if (!server.loadBalanced && + server.description.maxWireVersion < constants_1.MIN_SUPPORTED_QE_WIRE_VERSION) { + throw new error_1.MongoCompatibilityError(`${INVALID_QE_VERSION} The minimum server version required is ${constants_1.MIN_SUPPORTED_QE_SERVER_VERSION}`); + } + // Create auxilliary collections for queryable encryption support. + const escCollection = encryptedFields.escCollection ?? `enxcol_.${name}.esc`; + const ecocCollection = encryptedFields.ecocCollection ?? `enxcol_.${name}.ecoc`; + for (const collectionName of [escCollection, ecocCollection]) { + const createOp = new CreateCollectionOperation(db, collectionName, { + clusteredIndex: { + key: { _id: 1 }, + unique: true + } + }); + await createOp.executeWithoutEncryptedFieldsCheck(server, session); + } + if (!options.encryptedFields) { + this.options = { ...this.options, encryptedFields }; + } + } + const coll = await this.executeWithoutEncryptedFieldsCheck(server, session); + if (encryptedFields) { + // Create the required index for queryable encryption support. + const createIndexOp = indexes_1.CreateIndexesOperation.fromIndexSpecification(db, name, { __safeContent__: 1 }, {}); + await createIndexOp.execute(server, session); + } + return coll; + } + async executeWithoutEncryptedFieldsCheck(server, session) { + const db = this.db; + const name = this.name; + const options = this.options; + const cmd = { create: name }; + for (const n in options) { + if (options[n] != null && + typeof options[n] !== 'function' && + !ILLEGAL_COMMAND_FIELDS.has(n)) { + cmd[n] = options[n]; + } + } + // otherwise just execute the command + await super.executeCommand(server, session, cmd); + return new collection_1.Collection(db, name, options); + } +} +exports.CreateCollectionOperation = CreateCollectionOperation; +(0, operation_1.defineAspects)(CreateCollectionOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=create_collection.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/create_collection.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/create_collection.js.map new file mode 100644 index 000000000..1aeea4c22 --- /dev/null +++ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/delete.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/delete.js new file mode 100644 index 000000000..58a5134a8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/delete.js @@ -0,0 +1,116 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.makeDeleteStatement = exports.DeleteManyOperation = exports.DeleteOneOperation = exports.DeleteOperation = void 0; +const error_1 = require("../error"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class DeleteOperation extends command_1.CommandOperation { + constructor(ns, statements, options) { + super(undefined, options); + this.options = options; + this.ns = ns; + this.statements = statements; + } + get commandName() { + return 'delete'; + } + get canRetryWrite() { + if (super.canRetryWrite === false) { + return false; + } + return this.statements.every(op => (op.limit != null ? op.limit > 0 : true)); + } + async execute(server, session) { + const options = this.options ?? {}; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const command = { + delete: this.ns.collection, + deletes: this.statements, + ordered + }; + if (options.let) { + command.let = options.let; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0; + if (unacknowledgedWrite) { + if (this.statements.find((o) => o.hint)) { + // TODO(NODE-3541): fix error for hint with unacknowledged writes + throw new error_1.MongoCompatibilityError(`hint is not supported with unacknowledged writes`); + } + } + const res = await super.executeCommand(server, session, command); + return res; + } +} +exports.DeleteOperation = DeleteOperation; +class DeleteOneOperation extends DeleteOperation { + constructor(collection, filter, options) { + super(collection.s.namespace, [makeDeleteStatement(filter, { ...options, limit: 1 })], options); + } + async execute(server, session) { + const res = await super.execute(server, session); + if (this.explain) + return res; + if (res.code) + throw new error_1.MongoServerError(res); + if (res.writeErrors) + throw new error_1.MongoServerError(res.writeErrors[0]); + return { + acknowledged: this.writeConcern?.w !== 0, + deletedCount: res.n + }; + } +} +exports.DeleteOneOperation = DeleteOneOperation; +class DeleteManyOperation extends DeleteOperation { + constructor(collection, filter, options) { + super(collection.s.namespace, [makeDeleteStatement(filter, options)], options); + } + async execute(server, session) { + const res = await super.execute(server, session); + if (this.explain) + return res; + if (res.code) + throw new error_1.MongoServerError(res); + if (res.writeErrors) + throw new error_1.MongoServerError(res.writeErrors[0]); + return { + acknowledged: this.writeConcern?.w !== 0, + deletedCount: res.n + }; + } +} +exports.DeleteManyOperation = DeleteManyOperation; +function makeDeleteStatement(filter, options) { + const op = { + q: filter, + limit: typeof options.limit === 'number' ? options.limit : 0 + }; + if (options.collation) { + op.collation = options.collation; + } + if (options.hint) { + op.hint = options.hint; + } + return op; +} +exports.makeDeleteStatement = makeDeleteStatement; +(0, operation_1.defineAspects)(DeleteOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION]); +(0, operation_1.defineAspects)(DeleteOneOperation, [ + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.WRITE_OPERATION, + operation_1.Aspect.EXPLAINABLE, + operation_1.Aspect.SKIP_COLLATION +]); +(0, operation_1.defineAspects)(DeleteManyOperation, [ + operation_1.Aspect.WRITE_OPERATION, + operation_1.Aspect.EXPLAINABLE, + operation_1.Aspect.SKIP_COLLATION +]); +//# sourceMappingURL=delete.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/delete.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/delete.js.map new file mode 100644 index 000000000..7f5f7a827 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/delete.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/distinct.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/distinct.js new file mode 100644 index 000000000..0bfa9ccb5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/distinct.js @@ -0,0 +1,60 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.DistinctOperation = void 0; +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** + * Return a list of distinct values for the given key across a collection. + * @internal + */ +class DistinctOperation extends command_1.CommandOperation { + /** + * Construct a Distinct operation. + * + * @param collection - Collection instance. + * @param key - Field of the document to find distinct values for. + * @param query - The query for filtering the set of documents to which we apply the distinct filter. + * @param options - Optional settings. See Collection.prototype.distinct for a list of options. + */ + constructor(collection, key, query, options) { + super(collection, options); + this.options = options ?? {}; + this.collection = collection; + this.key = key; + this.query = query; + } + get commandName() { + return 'distinct'; + } + async execute(server, session) { + const coll = this.collection; + const key = this.key; + const query = this.query; + const options = this.options; + // Distinct command + const cmd = { + distinct: coll.collectionName, + key: key, + query: query + }; + // Add maxTimeMS if defined + if (typeof options.maxTimeMS === 'number') { + cmd.maxTimeMS = options.maxTimeMS; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (typeof options.comment !== 'undefined') { + cmd.comment = options.comment; + } + // Do we have a readConcern specified + (0, utils_1.decorateWithReadConcern)(cmd, coll, options); + // Have we specified collation + (0, utils_1.decorateWithCollation)(cmd, coll, options); + const result = await super.executeCommand(server, session, cmd); + return this.explain ? result : result.values; + } +} +exports.DistinctOperation = DistinctOperation; +(0, operation_1.defineAspects)(DistinctOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE, operation_1.Aspect.EXPLAINABLE]); +//# sourceMappingURL=distinct.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/distinct.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/distinct.js.map new file mode 100644 index 000000000..c8e49ba72 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/distinct.js.map @@ -0,0 +1 @@ +{"version":3,"file":"distinct.js","sourceRoot":"","sources":["../../src/operations/distinct.ts"],"names":[],"mappings":";;;AAIA,oCAA0E;AAC1E,uCAA2E;AAC3E,2CAAoD;AAKpD;;;GAGG;AACH,MAAa,iBAAkB,SAAQ,0BAAuB;IAQ5D;;;;;;;OAOG;IACH,YAAY,UAAsB,EAAE,GAAW,EAAE,KAAe,EAAE,OAAyB;QACzF,KAAK,CAAC,UAAU,EAAE,OAAO,CAAC,CAAC;QAE3B,IAAI,CAAC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QAC7B,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;QAC7B,IAAI,CAAC,GAAG,GAAG,GAAG,CAAC;QACf,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;IACrB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,UAAmB,CAAC;IAC7B,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,IAAI,GAAG,IAAI,CAAC,UAAU,CAAC;QAC7B,MAAM,GAAG,GAAG,IAAI,CAAC,GAAG,CAAC;QACrB,MAAM,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC;QACzB,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAE7B,mBAAmB;QACnB,MAAM,GAAG,GAAa;YACpB,QAAQ,EAAE,IAAI,CAAC,cAAc;YAC7B,GAAG,EAAE,GAAG;YACR,KAAK,EAAE,KAAK;SACb,CAAC;QAEF,2BAA2B;QAC3B,IAAI,OAAO,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE;YACzC,GAAG,CAAC,SAAS,GAAG,OAAO,CAAC,SAAS,CAAC;SACnC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,OAAO,OAAO,CAAC,OAAO,KAAK,WAAW,EAAE;YAC1C,GAAG,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;SAC/B;QAED,qCAAqC;QACrC,IAAA,+BAAuB,EAAC,GAAG,EAAE,IAAI,EAAE,OAAO,CAAC,CAAC;QAE5C,8BAA8B;QAC9B,IAAA,6BAAqB,EAAC,GAAG,EAAE,IAAI,EAAE,OAAO,CAAC,CAAC;QAE1C,MAAM,MAAM,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,CAAC,CAAC;QAEhE,OAAO,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,MAAM,CAAC,MAAM,CAAC;IAC/C,CAAC;CACF;AA/DD,8CA+DC;AAED,IAAA,yBAAa,EAAC,iBAAiB,EAAE,CAAC,kBAAM,CAAC,cAAc,EAAE,kBAAM,CAAC,SAAS,EAAE,kBAAM,CAAC,WAAW,CAAC,CAAC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/drop.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/drop.js new file mode 100644 index 000000000..521071e90 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/drop.js @@ -0,0 +1,76 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.DropDatabaseOperation = exports.DropCollectionOperation = void 0; +const error_1 = require("../error"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class DropCollectionOperation extends command_1.CommandOperation { + constructor(db, name, options = {}) { + super(db, options); + this.db = db; + this.options = options; + this.name = name; + } + get commandName() { + return 'drop'; + } + async execute(server, session) { + const db = this.db; + const options = this.options; + const name = this.name; + const encryptedFieldsMap = db.client.options.autoEncryption?.encryptedFieldsMap; + let encryptedFields = options.encryptedFields ?? encryptedFieldsMap?.[`${db.databaseName}.${name}`]; + if (!encryptedFields && encryptedFieldsMap) { + // If the MongoClient was configured with an encryptedFieldsMap, + // and no encryptedFields config was available in it or explicitly + // passed as an argument, the spec tells us to look one up using + // listCollections(). + const listCollectionsResult = await db + .listCollections({ name }, { nameOnly: false }) + .toArray(); + encryptedFields = listCollectionsResult?.[0]?.options?.encryptedFields; + } + if (encryptedFields) { + const escCollection = encryptedFields.escCollection || `enxcol_.${name}.esc`; + const ecocCollection = encryptedFields.ecocCollection || `enxcol_.${name}.ecoc`; + for (const collectionName of [escCollection, ecocCollection]) { + // Drop auxilliary collections, ignoring potential NamespaceNotFound errors. + const dropOp = new DropCollectionOperation(db, collectionName); + try { + await dropOp.executeWithoutEncryptedFieldsCheck(server, session); + } + catch (err) { + if (!(err instanceof error_1.MongoServerError) || + err.code !== error_1.MONGODB_ERROR_CODES.NamespaceNotFound) { + throw err; + } + } + } + } + return await this.executeWithoutEncryptedFieldsCheck(server, session); + } + async executeWithoutEncryptedFieldsCheck(server, session) { + await super.executeCommand(server, session, { drop: this.name }); + return true; + } +} +exports.DropCollectionOperation = DropCollectionOperation; +/** @internal */ +class DropDatabaseOperation extends command_1.CommandOperation { + constructor(db, options) { + super(db, options); + this.options = options; + } + get commandName() { + return 'dropDatabase'; + } + async execute(server, session) { + await super.executeCommand(server, session, { dropDatabase: 1 }); + return true; + } +} +exports.DropDatabaseOperation = DropDatabaseOperation; +(0, operation_1.defineAspects)(DropCollectionOperation, [operation_1.Aspect.WRITE_OPERATION]); +(0, operation_1.defineAspects)(DropDatabaseOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=drop.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/drop.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/drop.js.map new file mode 100644 index 000000000..5a72bf330 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/drop.js.map @@ -0,0 +1 @@ +{"version":3,"file":"drop.js","sourceRoot":"","sources":["../../src/operations/drop.ts"],"names":[],"mappings":";;;AAEA,oCAAiE;AAGjE,uCAA2E;AAC3E,2CAAoD;AAQpD,gBAAgB;AAChB,MAAa,uBAAwB,SAAQ,0BAAyB;IAKpE,YAAY,EAAM,EAAE,IAAY,EAAE,UAAiC,EAAE;QACnE,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,EAAE,GAAG,EAAE,CAAC;QACb,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,MAAe,CAAC;IACzB,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,EAAE,GAAG,IAAI,CAAC,EAAE,CAAC;QACnB,MAAM,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;QAC7B,MAAM,IAAI,GAAG,IAAI,CAAC,IAAI,CAAC;QAEvB,MAAM,kBAAkB,GAAG,EAAE,CAAC,MAAM,CAAC,OAAO,CAAC,cAAc,EAAE,kBAAkB,CAAC;QAChF,IAAI,eAAe,GACjB,OAAO,CAAC,eAAe,IAAI,kBAAkB,EAAE,CAAC,GAAG,EAAE,CAAC,YAAY,IAAI,IAAI,EAAE,CAAC,CAAC;QAEhF,IAAI,CAAC,eAAe,IAAI,kBAAkB,EAAE;YAC1C,gEAAgE;YAChE,kEAAkE;YAClE,gEAAgE;YAChE,qBAAqB;YACrB,MAAM,qBAAqB,GAAG,MAAM,EAAE;iBACnC,eAAe,CAAC,EAAE,IAAI,EAAE,EAAE,EAAE,QAAQ,EAAE,KAAK,EAAE,CAAC;iBAC9C,OAAO,EAAE,CAAC;YACb,eAAe,GAAG,qBAAqB,EAAE,CAAC,CAAC,CAAC,EAAE,OAAO,EAAE,eAAe,CAAC;SACxE;QAED,IAAI,eAAe,EAAE;YACnB,MAAM,aAAa,GAAG,eAAe,CAAC,aAAa,IAAI,WAAW,IAAI,MAAM,CAAC;YAC7E,MAAM,cAAc,GAAG,eAAe,CAAC,cAAc,IAAI,WAAW,IAAI,OAAO,CAAC;YAEhF,KAAK,MAAM,cAAc,IAAI,CAAC,aAAa,EAAE,cAAc,CAAC,EAAE;gBAC5D,4EAA4E;gBAC5E,MAAM,MAAM,GAAG,IAAI,uBAAuB,CAAC,EAAE,EAAE,cAAc,CAAC,CAAC;gBAC/D,IAAI;oBACF,MAAM,MAAM,CAAC,kCAAkC,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC;iBAClE;gBAAC,OAAO,GAAG,EAAE;oBACZ,IACE,CAAC,CAAC,GAAG,YAAY,wBAAgB,CAAC;wBAClC,GAAG,CAAC,IAAI,KAAK,2BAAmB,CAAC,iBAAiB,EAClD;wBACA,MAAM,GAAG,CAAC;qBACX;iBACF;aACF;SACF;QAED,OAAO,MAAM,IAAI,CAAC,kCAAkC,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC;IACxE,CAAC;IAEO,KAAK,CAAC,kCAAkC,CAC9C,MAAc,EACd,OAAkC;QAElC,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,EAAE,IAAI,EAAE,IAAI,CAAC,IAAI,EAAE,CAAC,CAAC;QACjE,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAlED,0DAkEC;AAKD,gBAAgB;AAChB,MAAa,qBAAsB,SAAQ,0BAAyB;IAGlE,YAAY,EAAM,EAAE,OAA4B;QAC9C,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IACD,IAAa,WAAW;QACtB,OAAO,cAAuB,CAAC;IACjC,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,EAAE,YAAY,EAAE,CAAC,EAAE,CAAC,CAAC;QACjE,OAAO,IAAI,CAAC;IACd,CAAC;CACF;AAfD,sDAeC;AAED,IAAA,yBAAa,EAAC,uBAAuB,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC;AACjE,IAAA,yBAAa,EAAC,qBAAqB,EAAE,CAAC,kBAAM,CAAC,eAAe,CAAC,CAAC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/estimated_document_count.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/estimated_document_count.js new file mode 100644 index 000000000..125733bf8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/estimated_document_count.js @@ -0,0 +1,36 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.EstimatedDocumentCountOperation = void 0; +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class EstimatedDocumentCountOperation extends command_1.CommandOperation { + constructor(collection, options = {}) { + super(collection, options); + this.options = options; + this.collectionName = collection.collectionName; + } + get commandName() { + return 'count'; + } + async execute(server, session) { + const cmd = { count: this.collectionName }; + if (typeof this.options.maxTimeMS === 'number') { + cmd.maxTimeMS = this.options.maxTimeMS; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (this.options.comment !== undefined) { + cmd.comment = this.options.comment; + } + const response = await super.executeCommand(server, session, cmd); + return response?.n || 0; + } +} +exports.EstimatedDocumentCountOperation = EstimatedDocumentCountOperation; +(0, operation_1.defineAspects)(EstimatedDocumentCountOperation, [ + operation_1.Aspect.READ_OPERATION, + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.CURSOR_CREATING +]); +//# sourceMappingURL=estimated_document_count.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/estimated_document_count.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/estimated_document_count.js.map new file mode 100644 index 000000000..9c12f2fb2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/estimated_document_count.js.map @@ -0,0 +1 @@ +{"version":3,"file":"estimated_document_count.js","sourceRoot":"","sources":["../../src/operations/estimated_document_count.ts"],"names":[],"mappings":";;;AAIA,uCAA2E;AAC3E,2CAAoD;AAYpD,gBAAgB;AAChB,MAAa,+BAAgC,SAAQ,0BAAwB;IAI3E,YAAY,UAAsB,EAAE,UAAyC,EAAE;QAC7E,KAAK,CAAC,UAAU,EAAE,OAAO,CAAC,CAAC;QAC3B,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACvB,IAAI,CAAC,cAAc,GAAG,UAAU,CAAC,cAAc,CAAC;IAClD,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,OAAgB,CAAC;IAC1B,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,GAAG,GAAa,EAAE,KAAK,EAAE,IAAI,CAAC,cAAc,EAAE,CAAC;QAErD,IAAI,OAAO,IAAI,CAAC,OAAO,CAAC,SAAS,KAAK,QAAQ,EAAE;YAC9C,GAAG,CAAC,SAAS,GAAG,IAAI,CAAC,OAAO,CAAC,SAAS,CAAC;SACxC;QAED,iEAAiE;QACjE,gDAAgD;QAChD,IAAI,IAAI,CAAC,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE;YACtC,GAAG,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC,OAAO,CAAC;SACpC;QAED,MAAM,QAAQ,GAAG,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,CAAC,CAAC;QAElE,OAAO,QAAQ,EAAE,CAAC,IAAI,CAAC,CAAC;IAC1B,CAAC;CACF;AA/BD,0EA+BC;AAED,IAAA,yBAAa,EAAC,+BAA+B,EAAE;IAC7C,kBAAM,CAAC,cAAc;IACrB,kBAAM,CAAC,SAAS;IAChB,kBAAM,CAAC,eAAe;CACvB,CAAC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/execute_operation.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/execute_operation.js new file mode 100644 index 000000000..9860cf462 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/execute_operation.js @@ -0,0 +1,206 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.executeOperation = void 0; +const error_1 = require("../error"); +const read_preference_1 = require("../read_preference"); +const server_selection_1 = require("../sdam/server_selection"); +const utils_1 = require("../utils"); +const operation_1 = require("./operation"); +const MMAPv1_RETRY_WRITES_ERROR_CODE = error_1.MONGODB_ERROR_CODES.IllegalOperation; +const MMAPv1_RETRY_WRITES_ERROR_MESSAGE = 'This MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string.'; +/** + * Executes the given operation with provided arguments. + * @internal + * + * @remarks + * Allows for a single point of entry to provide features such as implicit sessions, which + * are required by the Driver Sessions specification in the event that a ClientSession is + * not provided. + * + * The expectation is that this function: + * - Connects the MongoClient if it has not already been connected + * - Creates a session if none is provided and cleans up the session it creates + * - Selects a server based on readPreference or various factors + * - Retries an operation if it fails for certain errors, see {@link retryOperation} + * + * @typeParam T - The operation's type + * @typeParam TResult - The type of the operation's result, calculated from T + * + * @param client - The MongoClient to execute this operation with + * @param operation - The operation to execute + */ +async function executeOperation(client, operation) { + if (!(operation instanceof operation_1.AbstractOperation)) { + // TODO(NODE-3483): Extend MongoRuntimeError + throw new error_1.MongoRuntimeError('This method requires a valid operation instance'); + } + if (client.topology == null) { + // Auto connect on operation + if (client.s.hasBeenClosed) { + throw new error_1.MongoNotConnectedError('Client must be connected before running operations'); + } + client.s.options[Symbol.for('@@mdb.skipPingOnConnect')] = true; + try { + await client.connect(); + } + finally { + delete client.s.options[Symbol.for('@@mdb.skipPingOnConnect')]; + } + } + const { topology } = client; + if (topology == null) { + throw new error_1.MongoRuntimeError('client.connect did not create a topology but also did not throw'); + } + // The driver sessions spec mandates that we implicitly create sessions for operations + // that are not explicitly provided with a session. + let session = operation.session; + let owner; + if (session == null) { + owner = Symbol(); + session = client.startSession({ owner, explicit: false }); + } + else if (session.hasEnded) { + throw new error_1.MongoExpiredSessionError('Use of expired sessions is not permitted'); + } + else if (session.snapshotEnabled && !topology.capabilities.supportsSnapshotReads) { + throw new error_1.MongoCompatibilityError('Snapshot reads require MongoDB 5.0 or later'); + } + else if (session.client !== client) { + throw new error_1.MongoInvalidArgumentError('ClientSession must be from the same MongoClient'); + } + if (session.explicit && session?.timeoutMS != null && operation.options.timeoutMS != null) { + throw new error_1.MongoInvalidArgumentError('Do not specify timeoutMS on operation if already specified on an explicit session'); + } + const readPreference = operation.readPreference ?? read_preference_1.ReadPreference.primary; + const inTransaction = !!session?.inTransaction(); + const hasReadAspect = operation.hasAspect(operation_1.Aspect.READ_OPERATION); + const hasWriteAspect = operation.hasAspect(operation_1.Aspect.WRITE_OPERATION); + if (inTransaction && + !readPreference.equals(read_preference_1.ReadPreference.primary) && + (hasReadAspect || operation.commandName === 'runCommand')) { + throw new error_1.MongoTransactionError(`Read preference in a transaction must be primary, not: ${readPreference.mode}`); + } + if (session?.isPinned && session.transaction.isCommitted && !operation.bypassPinningCheck) { + session.unpin(); + } + let selector; + if (operation.hasAspect(operation_1.Aspect.MUST_SELECT_SAME_SERVER)) { + // GetMore and KillCursor operations must always select the same server, but run through + // server selection to potentially force monitor checks if the server is + // in an unknown state. + selector = (0, server_selection_1.sameServerSelector)(operation.server?.description); + } + else if (operation.trySecondaryWrite) { + // If operation should try to write to secondary use the custom server selector + // otherwise provide the read preference. + selector = (0, server_selection_1.secondaryWritableServerSelector)(topology.commonWireVersion, readPreference); + } + else { + selector = readPreference; + } + const server = await topology.selectServer(selector, { + session, + operationName: operation.commandName + }); + if (session == null) { + // No session also means it is not retryable, early exit + return await operation.execute(server, undefined); + } + if (!operation.hasAspect(operation_1.Aspect.RETRYABLE)) { + // non-retryable operation, early exit + try { + return await operation.execute(server, session); + } + finally { + if (session?.owner != null && session.owner === owner) { + try { + await session.endSession(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + } + } + } + const willRetryRead = topology.s.options.retryReads && !inTransaction && operation.canRetryRead; + const willRetryWrite = topology.s.options.retryWrites && + !inTransaction && + (0, utils_1.supportsRetryableWrites)(server) && + operation.canRetryWrite; + const willRetry = (hasReadAspect && willRetryRead) || (hasWriteAspect && willRetryWrite); + if (hasWriteAspect && willRetryWrite) { + operation.options.willRetryWrite = true; + session.incrementTransactionNumber(); + } + try { + return await operation.execute(server, session); + } + catch (operationError) { + if (willRetry && operationError instanceof error_1.MongoError) { + return await retryOperation(operation, operationError, { + session, + topology, + selector, + previousServer: server.description + }); + } + throw operationError; + } + finally { + if (session?.owner != null && session.owner === owner) { + try { + await session.endSession(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + } + } +} +exports.executeOperation = executeOperation; +async function retryOperation(operation, originalError, { session, topology, selector, previousServer }) { + const isWriteOperation = operation.hasAspect(operation_1.Aspect.WRITE_OPERATION); + const isReadOperation = operation.hasAspect(operation_1.Aspect.READ_OPERATION); + if (isWriteOperation && originalError.code === MMAPv1_RETRY_WRITES_ERROR_CODE) { + throw new error_1.MongoServerError({ + message: MMAPv1_RETRY_WRITES_ERROR_MESSAGE, + errmsg: MMAPv1_RETRY_WRITES_ERROR_MESSAGE, + originalError + }); + } + if (isWriteOperation && !(0, error_1.isRetryableWriteError)(originalError)) { + throw originalError; + } + if (isReadOperation && !(0, error_1.isRetryableReadError)(originalError)) { + throw originalError; + } + if (originalError instanceof error_1.MongoNetworkError && + session.isPinned && + !session.inTransaction() && + operation.hasAspect(operation_1.Aspect.CURSOR_CREATING)) { + // If we have a cursor and the initial command fails with a network error, + // we can retry it on another connection. So we need to check it back in, clear the + // pool for the service id, and retry again. + session.unpin({ force: true, forceClear: true }); + } + // select a new server, and attempt to retry the operation + const server = await topology.selectServer(selector, { + session, + operationName: operation.commandName, + previousServer + }); + if (isWriteOperation && !(0, utils_1.supportsRetryableWrites)(server)) { + throw new error_1.MongoUnexpectedServerResponseError('Selected server does not support retryable writes'); + } + try { + return await operation.execute(server, session); + } + catch (retryError) { + if (retryError instanceof error_1.MongoError && + retryError.hasErrorLabel(error_1.MongoErrorLabel.NoWritesPerformed)) { + throw originalError; + } + throw retryError; + } +} +//# sourceMappingURL=execute_operation.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/execute_operation.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/execute_operation.js.map new file mode 100644 index 000000000..b5b2397ea --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/execute_operation.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find.js new file mode 100644 index 000000000..72ac77419 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find.js @@ -0,0 +1,152 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.FindOperation = void 0; +const error_1 = require("../error"); +const read_concern_1 = require("../read_concern"); +const sort_1 = require("../sort"); +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class FindOperation extends command_1.CommandOperation { + constructor(ns, filter = {}, options = {}) { + super(undefined, options); + this.options = { ...options }; + delete this.options.writeConcern; + this.ns = ns; + if (typeof filter !== 'object' || Array.isArray(filter)) { + throw new error_1.MongoInvalidArgumentError('Query filter must be a plain object or ObjectId'); + } + // special case passing in an ObjectId as a filter + this.filter = filter != null && filter._bsontype === 'ObjectId' ? { _id: filter } : filter; + } + get commandName() { + return 'find'; + } + async execute(server, session) { + this.server = server; + const options = this.options; + let findCommand = makeFindCommand(this.ns, this.filter, options); + if (this.explain) { + findCommand = (0, utils_1.decorateWithExplain)(findCommand, this.explain); + } + return await server.command(this.ns, findCommand, { + ...this.options, + ...this.bsonOptions, + documentsReturnedIn: 'firstBatch', + session + }, undefined); + } +} +exports.FindOperation = FindOperation; +function makeFindCommand(ns, filter, options) { + const findCommand = { + find: ns.collection, + filter + }; + if (options.sort) { + findCommand.sort = (0, sort_1.formatSort)(options.sort); + } + if (options.projection) { + let projection = options.projection; + if (projection && Array.isArray(projection)) { + projection = projection.length + ? projection.reduce((result, field) => { + result[field] = 1; + return result; + }, {}) + : { _id: 1 }; + } + findCommand.projection = projection; + } + if (options.hint) { + findCommand.hint = (0, utils_1.normalizeHintField)(options.hint); + } + if (typeof options.skip === 'number') { + findCommand.skip = options.skip; + } + if (typeof options.limit === 'number') { + if (options.limit < 0) { + findCommand.limit = -options.limit; + findCommand.singleBatch = true; + } + else { + findCommand.limit = options.limit; + } + } + if (typeof options.batchSize === 'number') { + if (options.batchSize < 0) { + if (options.limit && + options.limit !== 0 && + Math.abs(options.batchSize) < Math.abs(options.limit)) { + findCommand.limit = -options.batchSize; + } + findCommand.singleBatch = true; + } + else { + findCommand.batchSize = options.batchSize; + } + } + if (typeof options.singleBatch === 'boolean') { + findCommand.singleBatch = options.singleBatch; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + findCommand.comment = options.comment; + } + if (typeof options.maxTimeMS === 'number') { + findCommand.maxTimeMS = options.maxTimeMS; + } + const readConcern = read_concern_1.ReadConcern.fromOptions(options); + if (readConcern) { + findCommand.readConcern = readConcern.toJSON(); + } + if (options.max) { + findCommand.max = options.max; + } + if (options.min) { + findCommand.min = options.min; + } + if (typeof options.returnKey === 'boolean') { + findCommand.returnKey = options.returnKey; + } + if (typeof options.showRecordId === 'boolean') { + findCommand.showRecordId = options.showRecordId; + } + if (typeof options.tailable === 'boolean') { + findCommand.tailable = options.tailable; + } + if (typeof options.oplogReplay === 'boolean') { + findCommand.oplogReplay = options.oplogReplay; + } + if (typeof options.timeout === 'boolean') { + findCommand.noCursorTimeout = !options.timeout; + } + else if (typeof options.noCursorTimeout === 'boolean') { + findCommand.noCursorTimeout = options.noCursorTimeout; + } + if (typeof options.awaitData === 'boolean') { + findCommand.awaitData = options.awaitData; + } + if (typeof options.allowPartialResults === 'boolean') { + findCommand.allowPartialResults = options.allowPartialResults; + } + if (options.collation) { + findCommand.collation = options.collation; + } + if (typeof options.allowDiskUse === 'boolean') { + findCommand.allowDiskUse = options.allowDiskUse; + } + if (options.let) { + findCommand.let = options.let; + } + return findCommand; +} +(0, operation_1.defineAspects)(FindOperation, [ + operation_1.Aspect.READ_OPERATION, + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.EXPLAINABLE, + operation_1.Aspect.CURSOR_CREATING +]); +//# sourceMappingURL=find.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find.js.map new file mode 100644 index 000000000..d2a89a849 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find_and_modify.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find_and_modify.js new file mode 100644 index 000000000..caa311aee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find_and_modify.js @@ -0,0 +1,152 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.FindOneAndUpdateOperation = exports.FindOneAndReplaceOperation = exports.FindOneAndDeleteOperation = exports.FindAndModifyOperation = exports.ReturnDocument = void 0; +const error_1 = require("../error"); +const read_preference_1 = require("../read_preference"); +const sort_1 = require("../sort"); +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @public */ +exports.ReturnDocument = Object.freeze({ + BEFORE: 'before', + AFTER: 'after' +}); +function configureFindAndModifyCmdBaseUpdateOpts(cmdBase, options) { + cmdBase.new = options.returnDocument === exports.ReturnDocument.AFTER; + cmdBase.upsert = options.upsert === true; + if (options.bypassDocumentValidation === true) { + cmdBase.bypassDocumentValidation = options.bypassDocumentValidation; + } + return cmdBase; +} +/** @internal */ +class FindAndModifyOperation extends command_1.CommandOperation { + constructor(collection, query, options) { + super(collection, options); + this.options = options ?? {}; + this.cmdBase = { + remove: false, + new: false, + upsert: false + }; + options.includeResultMetadata ??= false; + const sort = (0, sort_1.formatSort)(options.sort); + if (sort) { + this.cmdBase.sort = sort; + } + if (options.projection) { + this.cmdBase.fields = options.projection; + } + if (options.maxTimeMS) { + this.cmdBase.maxTimeMS = options.maxTimeMS; + } + // Decorate the findAndModify command with the write Concern + if (options.writeConcern) { + this.cmdBase.writeConcern = options.writeConcern; + } + if (options.let) { + this.cmdBase.let = options.let; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + this.cmdBase.comment = options.comment; + } + // force primary read preference + this.readPreference = read_preference_1.ReadPreference.primary; + this.collection = collection; + this.query = query; + } + get commandName() { + return 'findAndModify'; + } + async execute(server, session) { + const coll = this.collection; + const query = this.query; + const options = { ...this.options, ...this.bsonOptions }; + // Create findAndModify command object + const cmd = { + findAndModify: coll.collectionName, + query: query, + ...this.cmdBase + }; + // Have we specified collation + try { + (0, utils_1.decorateWithCollation)(cmd, coll, options); + } + catch (err) { + return err; + } + if (options.hint) { + // TODO: once this method becomes a CommandOperation we will have the server + // in place to check. + const unacknowledgedWrite = this.writeConcern?.w === 0; + if (unacknowledgedWrite || (0, utils_1.maxWireVersion)(server) < 8) { + throw new error_1.MongoCompatibilityError('The current topology does not support a hint on findAndModify commands'); + } + cmd.hint = options.hint; + } + // Execute the command + const result = await super.executeCommand(server, session, cmd); + return options.includeResultMetadata ? result : result.value ?? null; + } +} +exports.FindAndModifyOperation = FindAndModifyOperation; +/** @internal */ +class FindOneAndDeleteOperation extends FindAndModifyOperation { + constructor(collection, filter, options) { + // Basic validation + if (filter == null || typeof filter !== 'object') { + throw new error_1.MongoInvalidArgumentError('Argument "filter" must be an object'); + } + super(collection, filter, options); + this.cmdBase.remove = true; + } +} +exports.FindOneAndDeleteOperation = FindOneAndDeleteOperation; +/** @internal */ +class FindOneAndReplaceOperation extends FindAndModifyOperation { + constructor(collection, filter, replacement, options) { + if (filter == null || typeof filter !== 'object') { + throw new error_1.MongoInvalidArgumentError('Argument "filter" must be an object'); + } + if (replacement == null || typeof replacement !== 'object') { + throw new error_1.MongoInvalidArgumentError('Argument "replacement" must be an object'); + } + if ((0, utils_1.hasAtomicOperators)(replacement)) { + throw new error_1.MongoInvalidArgumentError('Replacement document must not contain atomic operators'); + } + super(collection, filter, options); + this.cmdBase.update = replacement; + configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options); + } +} +exports.FindOneAndReplaceOperation = FindOneAndReplaceOperation; +/** @internal */ +class FindOneAndUpdateOperation extends FindAndModifyOperation { + constructor(collection, filter, update, options) { + if (filter == null || typeof filter !== 'object') { + throw new error_1.MongoInvalidArgumentError('Argument "filter" must be an object'); + } + if (update == null || typeof update !== 'object') { + throw new error_1.MongoInvalidArgumentError('Argument "update" must be an object'); + } + if (!(0, utils_1.hasAtomicOperators)(update)) { + throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators'); + } + super(collection, filter, options); + this.cmdBase.update = update; + configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options); + if (options.arrayFilters) { + this.cmdBase.arrayFilters = options.arrayFilters; + } + } +} +exports.FindOneAndUpdateOperation = FindOneAndUpdateOperation; +(0, operation_1.defineAspects)(FindAndModifyOperation, [ + operation_1.Aspect.WRITE_OPERATION, + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.EXPLAINABLE +]); +//# sourceMappingURL=find_and_modify.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find_and_modify.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find_and_modify.js.map new file mode 100644 index 000000000..150ec0b72 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/find_and_modify.js.map @@ -0,0 +1 @@ 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with the get more operation, the signature + * for execute passes a server so we will just use that one. + */ + async execute(server, _session) { + if (server !== this.server) { + throw new error_1.MongoRuntimeError('Getmore must run on the same server operation began on'); + } + if (this.cursorId == null || this.cursorId.isZero()) { + throw new error_1.MongoRuntimeError('Unable to iterate cursor with no id'); + } + const collection = this.ns.collection; + if (collection == null) { + // Cursors should have adopted the namespace returned by MongoDB + // which should always defined a collection name (even a pseudo one, ex. db.aggregate()) + throw new error_1.MongoRuntimeError('A collection name must be determined before getMore'); + } + const getMoreCmd = { + getMore: this.cursorId, + collection + }; + if (typeof this.options.batchSize === 'number') { + getMoreCmd.batchSize = Math.abs(this.options.batchSize); + } + if (typeof this.options.maxAwaitTimeMS === 'number') { + getMoreCmd.maxTimeMS = this.options.maxAwaitTimeMS; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (this.options.comment !== undefined && (0, utils_1.maxWireVersion)(server) >= 9) { + getMoreCmd.comment = this.options.comment; + } + const commandOptions = { + returnFieldSelector: null, + documentsReturnedIn: 'nextBatch', + ...this.options + }; + return await server.command(this.ns, getMoreCmd, commandOptions, this.options.useCursorResponse ? responses_1.CursorResponse : undefined); + } +} +exports.GetMoreOperation = GetMoreOperation; +(0, operation_1.defineAspects)(GetMoreOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.MUST_SELECT_SAME_SERVER]); +//# sourceMappingURL=get_more.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/get_more.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/get_more.js.map new file 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/indexes.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/indexes.js new file mode 100644 index 000000000..f520f83db --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/indexes.js @@ -0,0 +1,175 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ListIndexesOperation = exports.DropIndexOperation = exports.CreateIndexesOperation = void 0; +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +const VALID_INDEX_OPTIONS = new Set([ + 'background', + 'unique', + 'name', + 'partialFilterExpression', + 'sparse', + 'hidden', + 'expireAfterSeconds', + 'storageEngine', + 'collation', + 'version', + // text indexes + 'weights', + 'default_language', + 'language_override', + 'textIndexVersion', + // 2d-sphere indexes + '2dsphereIndexVersion', + // 2d indexes + 'bits', + 'min', + 'max', + // geoHaystack Indexes + 'bucketSize', + // wildcard indexes + 'wildcardProjection' +]); +function isIndexDirection(x) { + return (typeof x === 'number' || x === '2d' || x === '2dsphere' || x === 'text' || x === 'geoHaystack'); +} +function isSingleIndexTuple(t) { + return Array.isArray(t) && t.length === 2 && isIndexDirection(t[1]); +} +/** + * Converts an `IndexSpecification`, which can be specified in multiple formats, into a + * valid `key` for the createIndexes command. + */ +function constructIndexDescriptionMap(indexSpec) { + const key = new Map(); + const indexSpecs = !Array.isArray(indexSpec) || isSingleIndexTuple(indexSpec) ? [indexSpec] : indexSpec; + // Iterate through array and handle different types + for (const spec of indexSpecs) { + if (typeof spec === 'string') { + key.set(spec, 1); + } + else if (Array.isArray(spec)) { + key.set(spec[0], spec[1] ?? 1); + } + else if (spec instanceof Map) { + for (const [property, value] of spec) { + key.set(property, value); + } + } + else if ((0, utils_1.isObject)(spec)) { + for (const [property, value] of Object.entries(spec)) { + key.set(property, value); + } + } + } + return key; +} +/** + * Receives an index description and returns a modified index description which has had invalid options removed + * from the description and has mapped the `version` option to the `v` option. + */ +function resolveIndexDescription(description) { + const validProvidedOptions = Object.entries(description).filter(([optionName]) => VALID_INDEX_OPTIONS.has(optionName)); + return Object.fromEntries( + // we support the `version` option, but the `createIndexes` command expects it to be the `v` + validProvidedOptions.map(([name, value]) => (name === 'version' ? ['v', value] : [name, value]))); +} +/** @internal */ +class CreateIndexesOperation extends command_1.CommandOperation { + constructor(parent, collectionName, indexes, options) { + super(parent, options); + this.options = options ?? {}; + this.collectionName = collectionName; + this.indexes = indexes.map((userIndex) => { + // Ensure the key is a Map to preserve index key ordering + const key = userIndex.key instanceof Map ? userIndex.key : new Map(Object.entries(userIndex.key)); + const name = userIndex.name ?? Array.from(key).flat().join('_'); + const validIndexOptions = resolveIndexDescription(userIndex); + return { + ...validIndexOptions, + name, + key + }; + }); + } + static fromIndexDescriptionArray(parent, collectionName, indexes, options) { + return new CreateIndexesOperation(parent, collectionName, indexes, options); + } + static fromIndexSpecification(parent, collectionName, indexSpec, options = {}) { + const key = constructIndexDescriptionMap(indexSpec); + const description = { ...options, key }; + return new CreateIndexesOperation(parent, collectionName, [description], options); + } + get commandName() { + return 'createIndexes'; + } + async execute(server, session) { + const options = this.options; + const indexes = this.indexes; + const serverWireVersion = (0, utils_1.maxWireVersion)(server); + const cmd = { createIndexes: this.collectionName, indexes }; + if (options.commitQuorum != null) { + if (serverWireVersion < 9) { + throw new error_1.MongoCompatibilityError('Option `commitQuorum` for `createIndexes` not supported on servers < 4.4'); + } + cmd.commitQuorum = options.commitQuorum; + } + // collation is set on each index, it should not be defined at the root + this.options.collation = undefined; + await super.executeCommand(server, session, cmd); + const indexNames = indexes.map(index => index.name || ''); + return indexNames; + } +} +exports.CreateIndexesOperation = CreateIndexesOperation; +/** @internal */ +class DropIndexOperation extends command_1.CommandOperation { + constructor(collection, indexName, options) { + super(collection, options); + this.options = options ?? {}; + this.collection = collection; + this.indexName = indexName; + } + get commandName() { + return 'dropIndexes'; + } + async execute(server, session) { + const cmd = { dropIndexes: this.collection.collectionName, index: this.indexName }; + return await super.executeCommand(server, session, cmd); + } +} +exports.DropIndexOperation = DropIndexOperation; +/** @internal */ +class ListIndexesOperation extends command_1.CommandOperation { + constructor(collection, options) { + super(collection, options); + this.options = { ...options }; + delete this.options.writeConcern; + this.collectionNamespace = collection.s.namespace; + } + get commandName() { + return 'listIndexes'; + } + async execute(server, session) { + const serverWireVersion = (0, utils_1.maxWireVersion)(server); + const cursor = this.options.batchSize ? { batchSize: this.options.batchSize } : {}; + const command = { listIndexes: this.collectionNamespace.collection, cursor }; + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (serverWireVersion >= 9 && this.options.comment !== undefined) { + command.comment = this.options.comment; + } + return await super.executeCommand(server, session, command); + } +} +exports.ListIndexesOperation = ListIndexesOperation; +(0, operation_1.defineAspects)(ListIndexesOperation, [ + operation_1.Aspect.READ_OPERATION, + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.CURSOR_CREATING +]); +(0, operation_1.defineAspects)(CreateIndexesOperation, [operation_1.Aspect.WRITE_OPERATION]); +(0, operation_1.defineAspects)(DropIndexOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=indexes.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/indexes.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/indexes.js.map new file mode 100644 index 000000000..f4559f7dc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/indexes.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/insert.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/insert.js new file mode 100644 index 000000000..f5fdf197b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/insert.js @@ -0,0 +1,101 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.InsertManyOperation = exports.InsertOneOperation = exports.InsertOperation = void 0; +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const write_concern_1 = require("../write_concern"); +const bulk_write_1 = require("./bulk_write"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class InsertOperation extends command_1.CommandOperation { + constructor(ns, documents, options) { + super(undefined, options); + this.options = { ...options, checkKeys: options.checkKeys ?? false }; + this.ns = ns; + this.documents = documents; + } + get commandName() { + return 'insert'; + } + async execute(server, session) { + const options = this.options ?? {}; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const command = { + insert: this.ns.collection, + documents: this.documents, + ordered + }; + if (typeof options.bypassDocumentValidation === 'boolean') { + command.bypassDocumentValidation = options.bypassDocumentValidation; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + return await super.executeCommand(server, session, command); + } +} +exports.InsertOperation = InsertOperation; +class InsertOneOperation extends InsertOperation { + constructor(collection, doc, options) { + super(collection.s.namespace, (0, utils_1.maybeAddIdToDocuments)(collection, [doc], options), options); + } + async execute(server, session) { + const res = await super.execute(server, session); + if (res.code) + throw new error_1.MongoServerError(res); + if (res.writeErrors) { + // This should be a WriteError but we can't change it now because of error hierarchy + throw new error_1.MongoServerError(res.writeErrors[0]); + } + return { + acknowledged: this.writeConcern?.w !== 0, + insertedId: this.documents[0]._id + }; + } +} +exports.InsertOneOperation = InsertOneOperation; +/** @internal */ +class InsertManyOperation extends operation_1.AbstractOperation { + constructor(collection, docs, options) { + super(options); + if (!Array.isArray(docs)) { + throw new error_1.MongoInvalidArgumentError('Argument "docs" must be an array of documents'); + } + this.options = options; + this.collection = collection; + this.docs = docs; + } + get commandName() { + return 'insert'; + } + async execute(server, session) { + const coll = this.collection; + const options = { ...this.options, ...this.bsonOptions, readPreference: this.readPreference }; + const writeConcern = write_concern_1.WriteConcern.fromOptions(options); + const bulkWriteOperation = new bulk_write_1.BulkWriteOperation(coll, this.docs.map(document => ({ + insertOne: { document } + })), options); + try { + const res = await bulkWriteOperation.execute(server, session); + return { + acknowledged: writeConcern?.w !== 0, + insertedCount: res.insertedCount, + insertedIds: res.insertedIds + }; + } + catch (err) { + if (err && err.message === 'Operation must be an object with an operation key') { + throw new error_1.MongoInvalidArgumentError('Collection.insertMany() cannot be called with an array that has null/undefined values'); + } + throw err; + } + } +} +exports.InsertManyOperation = InsertManyOperation; +(0, operation_1.defineAspects)(InsertOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION]); +(0, operation_1.defineAspects)(InsertOneOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION]); +(0, operation_1.defineAspects)(InsertManyOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=insert.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/insert.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/insert.js.map new file mode 100644 index 000000000..be1b25b93 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/insert.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/is_capped.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/is_capped.js new file mode 100644 index 000000000..5ba90d0c4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/is_capped.js @@ -0,0 +1,28 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.IsCappedOperation = void 0; +const error_1 = require("../error"); +const operation_1 = require("./operation"); +/** @internal */ +class IsCappedOperation extends operation_1.AbstractOperation { + constructor(collection, options) { + super(options); + this.options = options; + this.collection = collection; + } + get commandName() { + return 'listCollections'; + } + async execute(server, session) { + const coll = this.collection; + const [collection] = await coll.s.db + .listCollections({ name: coll.collectionName }, { ...this.options, nameOnly: false, readPreference: this.readPreference, session }) + .toArray(); + if (collection == null || collection.options == null) { + throw new error_1.MongoAPIError(`collection ${coll.namespace} not found`); + } + return !!collection.options?.capped; + } +} +exports.IsCappedOperation = IsCappedOperation; +//# sourceMappingURL=is_capped.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/is_capped.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/is_capped.js.map new file mode 100644 index 000000000..7e4efd7df --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/is_capped.js.map @@ -0,0 +1 @@ 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a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/kill_cursors.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/kill_cursors.js new file mode 100644 index 000000000..e2f55ed43 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/kill_cursors.js @@ -0,0 +1,42 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.KillCursorsOperation = void 0; +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const operation_1 = require("./operation"); +class KillCursorsOperation extends operation_1.AbstractOperation { + constructor(cursorId, ns, server, options) { + super(options); + this.ns = ns; + this.cursorId = cursorId; + this.server = server; + } + get commandName() { + return 'killCursors'; + } + async execute(server, session) { + if (server !== this.server) { + throw new error_1.MongoRuntimeError('Killcursor must run on the same server operation began on'); + } + const killCursors = this.ns.collection; + if (killCursors == null) { + // Cursors should have adopted the namespace returned by MongoDB + // which should always defined a collection name (even a pseudo one, ex. db.aggregate()) + throw new error_1.MongoRuntimeError('A collection name must be determined before killCursors'); + } + const killCursorsCommand = { + killCursors, + cursors: [this.cursorId] + }; + try { + await server.command(this.ns, killCursorsCommand, { session }); + } + catch (error) { + // The driver should never emit errors from killCursors, this is spec-ed behavior + (0, utils_1.squashError)(error); + } + } +} +exports.KillCursorsOperation = KillCursorsOperation; +(0, operation_1.defineAspects)(KillCursorsOperation, [operation_1.Aspect.MUST_SELECT_SAME_SERVER]); +//# sourceMappingURL=kill_cursors.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/kill_cursors.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/kill_cursors.js.map new file mode 100644 index 000000000..11794598c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/kill_cursors.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_collections.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_collections.js new file mode 100644 index 000000000..4d5b34973 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_collections.js @@ -0,0 +1,50 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ListCollectionsOperation = void 0; +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class ListCollectionsOperation extends command_1.CommandOperation { + constructor(db, filter, options) { + super(db, options); + this.options = { ...options }; + delete this.options.writeConcern; + this.db = db; + this.filter = filter; + this.nameOnly = !!this.options.nameOnly; + this.authorizedCollections = !!this.options.authorizedCollections; + if (typeof this.options.batchSize === 'number') { + this.batchSize = this.options.batchSize; + } + } + get commandName() { + return 'listCollections'; + } + async execute(server, session) { + return await super.executeCommand(server, session, this.generateCommand((0, utils_1.maxWireVersion)(server))); + } + /* This is here for the purpose of unit testing the final command that gets sent. */ + generateCommand(wireVersion) { + const command = { + listCollections: 1, + filter: this.filter, + cursor: this.batchSize ? { batchSize: this.batchSize } : {}, + nameOnly: this.nameOnly, + authorizedCollections: this.authorizedCollections + }; + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (wireVersion >= 9 && this.options.comment !== undefined) { + command.comment = this.options.comment; + } + return command; + } +} +exports.ListCollectionsOperation = ListCollectionsOperation; +(0, operation_1.defineAspects)(ListCollectionsOperation, [ + operation_1.Aspect.READ_OPERATION, + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.CURSOR_CREATING +]); +//# sourceMappingURL=list_collections.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_collections.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_collections.js.map new file mode 100644 index 000000000..a51da1ba9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_collections.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_databases.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_databases.js new file mode 100644 index 000000000..1d6964dad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_databases.js @@ -0,0 +1,38 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ListDatabasesOperation = void 0; +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class ListDatabasesOperation extends command_1.CommandOperation { + constructor(db, options) { + super(db, options); + this.options = options ?? {}; + this.ns = new utils_1.MongoDBNamespace('admin', '$cmd'); + } + get commandName() { + return 'listDatabases'; + } + async execute(server, session) { + const cmd = { listDatabases: 1 }; + if (typeof this.options.nameOnly === 'boolean') { + cmd.nameOnly = this.options.nameOnly; + } + if (this.options.filter) { + cmd.filter = this.options.filter; + } + if (typeof this.options.authorizedDatabases === 'boolean') { + cmd.authorizedDatabases = this.options.authorizedDatabases; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if ((0, utils_1.maxWireVersion)(server) >= 9 && this.options.comment !== undefined) { + cmd.comment = this.options.comment; + } + return await super.executeCommand(server, session, cmd); + } +} +exports.ListDatabasesOperation = ListDatabasesOperation; +(0, operation_1.defineAspects)(ListDatabasesOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE]); +//# sourceMappingURL=list_databases.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_databases.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_databases.js.map new file mode 100644 index 000000000..a409633bb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/list_databases.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/operation.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/operation.js new file mode 100644 index 000000000..1f165abe3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/operation.js @@ -0,0 +1,69 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.defineAspects = exports.AbstractOperation = exports.Aspect = void 0; +const bson_1 = require("../bson"); +const read_preference_1 = require("../read_preference"); +exports.Aspect = { + READ_OPERATION: Symbol('READ_OPERATION'), + WRITE_OPERATION: Symbol('WRITE_OPERATION'), + RETRYABLE: Symbol('RETRYABLE'), + EXPLAINABLE: Symbol('EXPLAINABLE'), + SKIP_COLLATION: Symbol('SKIP_COLLATION'), + CURSOR_CREATING: Symbol('CURSOR_CREATING'), + MUST_SELECT_SAME_SERVER: Symbol('MUST_SELECT_SAME_SERVER') +}; +/** @internal */ +const kSession = Symbol('session'); +/** + * This class acts as a parent class for any operation and is responsible for setting this.options, + * as well as setting and getting a session. + * Additionally, this class implements `hasAspect`, which determines whether an operation has + * a specific aspect. + * @internal + */ +class AbstractOperation { + constructor(options = {}) { + this.readPreference = this.hasAspect(exports.Aspect.WRITE_OPERATION) + ? read_preference_1.ReadPreference.primary + : read_preference_1.ReadPreference.fromOptions(options) ?? read_preference_1.ReadPreference.primary; + // Pull the BSON serialize options from the already-resolved options + this.bsonOptions = (0, bson_1.resolveBSONOptions)(options); + this[kSession] = options.session != null ? options.session : undefined; + this.options = options; + this.bypassPinningCheck = !!options.bypassPinningCheck; + this.trySecondaryWrite = false; + } + hasAspect(aspect) { + const ctor = this.constructor; + if (ctor.aspects == null) { + return false; + } + return ctor.aspects.has(aspect); + } + get session() { + return this[kSession]; + } + clearSession() { + this[kSession] = undefined; + } + get canRetryRead() { + return true; + } + get canRetryWrite() { + return true; + } +} +exports.AbstractOperation = AbstractOperation; +function defineAspects(operation, aspects) { + if (!Array.isArray(aspects) && !(aspects instanceof Set)) { + aspects = [aspects]; + } + aspects = new Set(aspects); + Object.defineProperty(operation, 'aspects', { + value: aspects, + writable: false + }); + return aspects; +} +exports.defineAspects = defineAspects; +//# sourceMappingURL=operation.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/operation.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/operation.js.map new file mode 100644 index 000000000..0722a50e0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/operation.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/options_operation.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/options_operation.js new file mode 100644 index 000000000..6cc249228 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/options_operation.js @@ -0,0 +1,28 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.OptionsOperation = void 0; +const error_1 = require("../error"); +const operation_1 = require("./operation"); +/** @internal */ +class OptionsOperation extends operation_1.AbstractOperation { + constructor(collection, options) { + super(options); + this.options = options; + this.collection = collection; + } + get commandName() { + return 'listCollections'; + } + async execute(server, session) { + const coll = this.collection; + const [collection] = await coll.s.db + .listCollections({ name: coll.collectionName }, { ...this.options, nameOnly: false, readPreference: this.readPreference, session }) + .toArray(); + if (collection == null || collection.options == null) { + throw new error_1.MongoAPIError(`collection ${coll.namespace} not found`); + } + return collection.options; + } +} +exports.OptionsOperation = OptionsOperation; +//# sourceMappingURL=options_operation.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/options_operation.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/options_operation.js.map new file mode 100644 index 000000000..dd8af646a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/options_operation.js.map @@ -0,0 +1 @@ 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a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/profiling_level.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/profiling_level.js new file mode 100644 index 000000000..6bf7275b0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/profiling_level.js @@ -0,0 +1,33 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ProfilingLevelOperation = void 0; +const error_1 = require("../error"); +const command_1 = require("./command"); +/** @internal */ +class ProfilingLevelOperation extends command_1.CommandOperation { + constructor(db, options) { + super(db, options); + this.options = options; + } + get commandName() { + return 'profile'; + } + async execute(server, session) { + const doc = await super.executeCommand(server, session, { profile: -1 }); + if (doc.ok === 1) { + const was = doc.was; + if (was === 0) + return 'off'; + if (was === 1) + return 'slow_only'; + if (was === 2) + return 'all'; + throw new error_1.MongoUnexpectedServerResponseError(`Illegal profiling level value ${was}`); + } + else { + throw new error_1.MongoUnexpectedServerResponseError('Error with profile command'); + } + } +} +exports.ProfilingLevelOperation = ProfilingLevelOperation; +//# sourceMappingURL=profiling_level.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/profiling_level.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/profiling_level.js.map new file mode 100644 index 000000000..1dd9fc50f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/profiling_level.js.map @@ -0,0 +1 @@ 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a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/remove_user.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/remove_user.js new file mode 100644 index 000000000..7c2dd0248 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/remove_user.js @@ -0,0 +1,23 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.RemoveUserOperation = void 0; +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class RemoveUserOperation extends command_1.CommandOperation { + constructor(db, username, options) { + super(db, options); + this.options = options; + this.username = username; + } + get commandName() { + return 'dropUser'; + } + async execute(server, session) { + await super.executeCommand(server, session, { dropUser: this.username }); + return true; + } +} +exports.RemoveUserOperation = RemoveUserOperation; +(0, operation_1.defineAspects)(RemoveUserOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=remove_user.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/remove_user.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/remove_user.js.map new file mode 100644 index 000000000..963ce6d36 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/remove_user.js.map @@ -0,0 +1 @@ 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+1,36 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.RenameOperation = void 0; +const collection_1 = require("../collection"); +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class RenameOperation extends command_1.CommandOperation { + constructor(collection, newName, options) { + super(collection, options); + this.collection = collection; + this.newName = newName; + this.options = options; + this.ns = new utils_1.MongoDBNamespace('admin', '$cmd'); + } + get commandName() { + return 'renameCollection'; + } + async execute(server, session) { + // Build the command + const renameCollection = this.collection.namespace; + const toCollection = this.collection.s.namespace.withCollection(this.newName).toString(); + const dropTarget = typeof this.options.dropTarget === 'boolean' ? this.options.dropTarget : false; + const command = { + renameCollection: renameCollection, + to: toCollection, + dropTarget: dropTarget + }; + await super.executeCommand(server, session, command); + return new collection_1.Collection(this.collection.s.db, this.newName, this.collection.s.options); + } +} +exports.RenameOperation = RenameOperation; +(0, operation_1.defineAspects)(RenameOperation, [operation_1.Aspect.WRITE_OPERATION]); +//# sourceMappingURL=rename.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/rename.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/rename.js.map new file mode 100644 index 000000000..a5e6f430c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/rename.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/run_command.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/run_command.js new file mode 100644 index 000000000..53355dabc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/run_command.js @@ -0,0 +1,49 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.RunAdminCommandOperation = exports.RunCommandOperation = void 0; +const utils_1 = require("../utils"); +const operation_1 = require("./operation"); +/** @internal */ +class RunCommandOperation extends operation_1.AbstractOperation { + constructor(parent, command, options) { + super(options); + this.command = command; + this.options = options; + this.ns = parent.s.namespace.withCollection('$cmd'); + } + get commandName() { + return 'runCommand'; + } + async execute(server, session) { + this.server = server; + const res = await server.command(this.ns, this.command, { + ...this.options, + readPreference: this.readPreference, + session + }); + return res; + } +} +exports.RunCommandOperation = RunCommandOperation; +class RunAdminCommandOperation extends operation_1.AbstractOperation { + constructor(command, options) { + super(options); + this.command = command; + this.options = options; + this.ns = new utils_1.MongoDBNamespace('admin', '$cmd'); + } + get commandName() { + return 'runCommand'; + } + async execute(server, session) { + this.server = server; + const res = await server.command(this.ns, this.command, { + ...this.options, + readPreference: this.readPreference, + session + }); + return res; + } +} +exports.RunAdminCommandOperation = RunAdminCommandOperation; +//# sourceMappingURL=run_command.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/run_command.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/run_command.js.map new 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/create.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/create.js new file mode 100644 index 000000000..9707f226c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/create.js @@ -0,0 +1,27 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.CreateSearchIndexesOperation = void 0; +const operation_1 = require("../operation"); +/** @internal */ +class CreateSearchIndexesOperation extends operation_1.AbstractOperation { + constructor(collection, descriptions) { + super(); + this.collection = collection; + this.descriptions = descriptions; + } + get commandName() { + return 'createSearchIndexes'; + } + async execute(server, session) { + const namespace = this.collection.fullNamespace; + const command = { + createSearchIndexes: namespace.collection, + indexes: this.descriptions + }; + const res = await server.command(namespace, command, { session }); + const indexesCreated = res?.indexesCreated ?? []; + return indexesCreated.map(({ name }) => name); + } +} +exports.CreateSearchIndexesOperation = CreateSearchIndexesOperation; +//# sourceMappingURL=create.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/create.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/create.js.map new file mode 100644 index 000000000..fa9fa72d0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/create.js.map @@ -0,0 +1 @@ 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b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/drop.js new file mode 100644 index 000000000..494d65c2b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/drop.js @@ -0,0 +1,36 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.DropSearchIndexOperation = void 0; +const error_1 = require("../../error"); +const operation_1 = require("../operation"); +/** @internal */ +class DropSearchIndexOperation extends operation_1.AbstractOperation { + constructor(collection, name) { + super(); + this.collection = collection; + this.name = name; + } + get commandName() { + return 'dropSearchIndex'; + } + async execute(server, session) { + const namespace = this.collection.fullNamespace; + const command = { + dropSearchIndex: namespace.collection + }; + if (typeof this.name === 'string') { + command.name = this.name; + } + try { + await server.command(namespace, command, { session }); + } + catch (error) { + const isNamespaceNotFoundError = error instanceof error_1.MongoServerError && error.code === error_1.MONGODB_ERROR_CODES.NamespaceNotFound; + if (!isNamespaceNotFoundError) { + throw error; + } + } + } +} +exports.DropSearchIndexOperation = DropSearchIndexOperation; +//# sourceMappingURL=drop.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/drop.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/drop.js.map new file mode 100644 index 000000000..376bb8df8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/drop.js.map @@ -0,0 +1 @@ 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a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/update.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/update.js new file mode 100644 index 000000000..673c100bb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/update.js @@ -0,0 +1,28 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.UpdateSearchIndexOperation = void 0; +const operation_1 = require("../operation"); +/** @internal */ +class UpdateSearchIndexOperation extends operation_1.AbstractOperation { + constructor(collection, name, definition) { + super(); + this.collection = collection; + this.name = name; + this.definition = definition; + } + get commandName() { + return 'updateSearchIndex'; + } + async execute(server, session) { + const namespace = this.collection.fullNamespace; + const command = { + updateSearchIndex: namespace.collection, + name: this.name, + definition: this.definition + }; + await server.command(namespace, command, { session }); + return; + } +} +exports.UpdateSearchIndexOperation = UpdateSearchIndexOperation; +//# sourceMappingURL=update.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/update.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/update.js.map new file mode 100644 index 000000000..865d2b763 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/search_indexes/update.js.map @@ -0,0 +1 @@ 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+++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/set_profiling_level.js @@ -0,0 +1,49 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.SetProfilingLevelOperation = exports.ProfilingLevel = void 0; +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const levelValues = new Set(['off', 'slow_only', 'all']); +/** @public */ +exports.ProfilingLevel = Object.freeze({ + off: 'off', + slowOnly: 'slow_only', + all: 'all' +}); +/** @internal */ +class SetProfilingLevelOperation extends command_1.CommandOperation { + constructor(db, level, options) { + super(db, options); + this.options = options; + switch (level) { + case exports.ProfilingLevel.off: + this.profile = 0; + break; + case exports.ProfilingLevel.slowOnly: + this.profile = 1; + break; + case exports.ProfilingLevel.all: + this.profile = 2; + break; + default: + this.profile = 0; + break; + } + this.level = level; + } + get commandName() { + return 'profile'; + } + async execute(server, session) { + const level = this.level; + if (!levelValues.has(level)) { + throw new error_1.MongoInvalidArgumentError(`Profiling level must be one of "${(0, utils_1.enumToString)(exports.ProfilingLevel)}"`); + } + // TODO(NODE-3483): Determine error to put here + await super.executeCommand(server, session, { profile: this.profile }); + return level; + } +} +exports.SetProfilingLevelOperation = SetProfilingLevelOperation; +//# sourceMappingURL=set_profiling_level.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/set_profiling_level.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/set_profiling_level.js.map new file mode 100644 index 000000000..e149b97ff --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/set_profiling_level.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/stats.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/stats.js new file mode 100644 index 000000000..9c3ffe43e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/stats.js @@ -0,0 +1,25 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.DbStatsOperation = void 0; +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** @internal */ +class DbStatsOperation extends command_1.CommandOperation { + constructor(db, options) { + super(db, options); + this.options = options; + } + get commandName() { + return 'dbStats'; + } + async execute(server, session) { + const command = { dbStats: true }; + if (this.options.scale != null) { + command.scale = this.options.scale; + } + return await super.executeCommand(server, session, command); + } +} +exports.DbStatsOperation = DbStatsOperation; +(0, operation_1.defineAspects)(DbStatsOperation, [operation_1.Aspect.READ_OPERATION]); +//# sourceMappingURL=stats.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/stats.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/stats.js.map new file mode 100644 index 000000000..accc9bfa0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/stats.js.map @@ -0,0 +1 @@ +{"version":3,"file":"stats.js","sourceRoot":"","sources":["../../src/operations/stats.ts"],"names":[],"mappings":";;;AAIA,uCAA2E;AAC3E,2CAAoD;AAQpD,gBAAgB;AAChB,MAAa,gBAAiB,SAAQ,0BAA0B;IAG9D,YAAY,EAAM,EAAE,OAAuB;QACzC,KAAK,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QACnB,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;IACzB,CAAC;IAED,IAAa,WAAW;QACtB,OAAO,SAAkB,CAAC;IAC5B,CAAC;IAEQ,KAAK,CAAC,OAAO,CAAC,MAAc,EAAE,OAAkC;QACvE,MAAM,OAAO,GAAa,EAAE,OAAO,EAAE,IAAI,EAAE,CAAC;QAC5C,IAAI,IAAI,CAAC,OAAO,CAAC,KAAK,IAAI,IAAI,EAAE;YAC9B,OAAO,CAAC,KAAK,GAAG,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC;SACpC;QAED,OAAO,MAAM,KAAK,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,EAAE,OAAO,CAAC,CAAC;IAC9D,CAAC;CACF;AApBD,4CAoBC;AAED,IAAA,yBAAa,EAAC,gBAAgB,EAAE,CAAC,kBAAM,CAAC,cAAc,CAAC,CAAC,CAAC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/update.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/update.js new file mode 100644 index 000000000..11d972040 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/update.js @@ -0,0 +1,179 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.makeUpdateStatement = exports.ReplaceOneOperation = exports.UpdateManyOperation = exports.UpdateOneOperation = exports.UpdateOperation = void 0; +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const command_1 = require("./command"); +const operation_1 = require("./operation"); +/** + * @internal + * UpdateOperation is used in bulk write, while UpdateOneOperation and UpdateManyOperation are only used in the collections API + */ +class UpdateOperation extends command_1.CommandOperation { + constructor(ns, statements, options) { + super(undefined, options); + this.options = options; + this.ns = ns; + this.statements = statements; + } + get commandName() { + return 'update'; + } + get canRetryWrite() { + if (super.canRetryWrite === false) { + return false; + } + return this.statements.every(op => op.multi == null || op.multi === false); + } + async execute(server, session) { + const options = this.options ?? {}; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const command = { + update: this.ns.collection, + updates: this.statements, + ordered + }; + if (typeof options.bypassDocumentValidation === 'boolean') { + command.bypassDocumentValidation = options.bypassDocumentValidation; + } + if (options.let) { + command.let = options.let; + } + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0; + if (unacknowledgedWrite) { + if (this.statements.find((o) => o.hint)) { + // TODO(NODE-3541): fix error for hint with unacknowledged writes + throw new error_1.MongoCompatibilityError(`hint is not supported with unacknowledged writes`); + } + } + return await super.executeCommand(server, session, command); + } +} +exports.UpdateOperation = UpdateOperation; +/** @internal */ +class UpdateOneOperation extends UpdateOperation { + constructor(collection, filter, update, options) { + super(collection.s.namespace, [makeUpdateStatement(filter, update, { ...options, multi: false })], options); + if (!(0, utils_1.hasAtomicOperators)(update)) { + throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators'); + } + } + async execute(server, session) { + const res = await super.execute(server, session); + if (this.explain != null) + return res; + if (res.code) + throw new error_1.MongoServerError(res); + if (res.writeErrors) + throw new error_1.MongoServerError(res.writeErrors[0]); + return { + acknowledged: this.writeConcern?.w !== 0, + modifiedCount: res.nModified ?? res.n, + upsertedId: Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null, + upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0, + matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n + }; + } +} +exports.UpdateOneOperation = UpdateOneOperation; +/** @internal */ +class UpdateManyOperation extends UpdateOperation { + constructor(collection, filter, update, options) { + super(collection.s.namespace, [makeUpdateStatement(filter, update, { ...options, multi: true })], options); + if (!(0, utils_1.hasAtomicOperators)(update)) { + throw new error_1.MongoInvalidArgumentError('Update document requires atomic operators'); + } + } + async execute(server, session) { + const res = await super.execute(server, session); + if (this.explain != null) + return res; + if (res.code) + throw new error_1.MongoServerError(res); + if (res.writeErrors) + throw new error_1.MongoServerError(res.writeErrors[0]); + return { + acknowledged: this.writeConcern?.w !== 0, + modifiedCount: res.nModified ?? res.n, + upsertedId: Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null, + upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0, + matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n + }; + } +} +exports.UpdateManyOperation = UpdateManyOperation; +/** @internal */ +class ReplaceOneOperation extends UpdateOperation { + constructor(collection, filter, replacement, options) { + super(collection.s.namespace, [makeUpdateStatement(filter, replacement, { ...options, multi: false })], options); + if ((0, utils_1.hasAtomicOperators)(replacement)) { + throw new error_1.MongoInvalidArgumentError('Replacement document must not contain atomic operators'); + } + } + async execute(server, session) { + const res = await super.execute(server, session); + if (this.explain != null) + return res; + if (res.code) + throw new error_1.MongoServerError(res); + if (res.writeErrors) + throw new error_1.MongoServerError(res.writeErrors[0]); + return { + acknowledged: this.writeConcern?.w !== 0, + modifiedCount: res.nModified ?? res.n, + upsertedId: Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null, + upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0, + matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n + }; + } +} +exports.ReplaceOneOperation = ReplaceOneOperation; +function makeUpdateStatement(filter, update, options) { + if (filter == null || typeof filter !== 'object') { + throw new error_1.MongoInvalidArgumentError('Selector must be a valid JavaScript object'); + } + if (update == null || typeof update !== 'object') { + throw new error_1.MongoInvalidArgumentError('Document must be a valid JavaScript object'); + } + const op = { q: filter, u: update }; + if (typeof options.upsert === 'boolean') { + op.upsert = options.upsert; + } + if (options.multi) { + op.multi = options.multi; + } + if (options.hint) { + op.hint = options.hint; + } + if (options.arrayFilters) { + op.arrayFilters = options.arrayFilters; + } + if (options.collation) { + op.collation = options.collation; + } + return op; +} +exports.makeUpdateStatement = makeUpdateStatement; +(0, operation_1.defineAspects)(UpdateOperation, [operation_1.Aspect.RETRYABLE, operation_1.Aspect.WRITE_OPERATION, operation_1.Aspect.SKIP_COLLATION]); +(0, operation_1.defineAspects)(UpdateOneOperation, [ + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.WRITE_OPERATION, + operation_1.Aspect.EXPLAINABLE, + operation_1.Aspect.SKIP_COLLATION +]); +(0, operation_1.defineAspects)(UpdateManyOperation, [ + operation_1.Aspect.WRITE_OPERATION, + operation_1.Aspect.EXPLAINABLE, + operation_1.Aspect.SKIP_COLLATION +]); +(0, operation_1.defineAspects)(ReplaceOneOperation, [ + operation_1.Aspect.RETRYABLE, + operation_1.Aspect.WRITE_OPERATION, + operation_1.Aspect.SKIP_COLLATION +]); +//# sourceMappingURL=update.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/update.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/update.js.map new file mode 100644 index 000000000..4a39fa199 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/update.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/validate_collection.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/validate_collection.js new file mode 100644 index 000000000..bed27da29 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/validate_collection.js @@ -0,0 +1,38 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ValidateCollectionOperation = void 0; +const error_1 = require("../error"); +const command_1 = require("./command"); +/** @internal */ +class ValidateCollectionOperation extends command_1.CommandOperation { + constructor(admin, collectionName, options) { + // Decorate command with extra options + const command = { validate: collectionName }; + const keys = Object.keys(options); + for (let i = 0; i < keys.length; i++) { + if (Object.prototype.hasOwnProperty.call(options, keys[i]) && keys[i] !== 'session') { + command[keys[i]] = options[keys[i]]; + } + } + super(admin.s.db, options); + this.options = options; + this.command = command; + this.collectionName = collectionName; + } + get commandName() { + return 'validate'; + } + async execute(server, session) { + const collectionName = this.collectionName; + const doc = await super.executeCommand(server, session, this.command); + if (doc.result != null && typeof doc.result !== 'string') + throw new error_1.MongoUnexpectedServerResponseError('Error with validation data'); + if (doc.result != null && doc.result.match(/exception|corrupt/) != null) + throw new error_1.MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`); + if (doc.valid != null && !doc.valid) + throw new error_1.MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`); + return doc; + } +} +exports.ValidateCollectionOperation = ValidateCollectionOperation; +//# sourceMappingURL=validate_collection.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/validate_collection.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/validate_collection.js.map new file mode 100644 index 000000000..0e549a961 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/operations/validate_collection.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/read_concern.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_concern.js new file mode 100644 index 000000000..aed3e2274 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_concern.js @@ -0,0 +1,73 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ReadConcern = exports.ReadConcernLevel = void 0; +/** @public */ +exports.ReadConcernLevel = Object.freeze({ + local: 'local', + majority: 'majority', + linearizable: 'linearizable', + available: 'available', + snapshot: 'snapshot' +}); +/** + * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties + * of the data read from replica sets and replica set shards. + * @public + * + * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html + */ +class ReadConcern { + /** Constructs a ReadConcern from the read concern level.*/ + constructor(level) { + /** + * A spec test exists that allows level to be any string. + * "invalid readConcern with out stage" + * @see ./test/spec/crud/v2/aggregate-out-readConcern.json + * @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.rst#unknown-levels-and-additional-options-for-string-based-readconcerns + */ + this.level = exports.ReadConcernLevel[level] ?? level; + } + /** + * Construct a ReadConcern given an options object. + * + * @param options - The options object from which to extract the write concern. + */ + static fromOptions(options) { + if (options == null) { + return; + } + if (options.readConcern) { + const { readConcern } = options; + if (readConcern instanceof ReadConcern) { + return readConcern; + } + else if (typeof readConcern === 'string') { + return new ReadConcern(readConcern); + } + else if ('level' in readConcern && readConcern.level) { + return new ReadConcern(readConcern.level); + } + } + if (options.level) { + return new ReadConcern(options.level); + } + return; + } + static get MAJORITY() { + return exports.ReadConcernLevel.majority; + } + static get AVAILABLE() { + return exports.ReadConcernLevel.available; + } + static get LINEARIZABLE() { + return exports.ReadConcernLevel.linearizable; + } + static get SNAPSHOT() { + return exports.ReadConcernLevel.snapshot; + } + toJSON() { + return { level: this.level }; + } +} +exports.ReadConcern = ReadConcern; +//# sourceMappingURL=read_concern.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/read_concern.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_concern.js.map new file mode 100644 index 000000000..5df31985f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_concern.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/read_preference.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_preference.js new file mode 100644 index 000000000..d88239913 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_preference.js @@ -0,0 +1,195 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ReadPreference = exports.ReadPreferenceMode = void 0; +const error_1 = require("./error"); +/** @public */ +exports.ReadPreferenceMode = Object.freeze({ + primary: 'primary', + primaryPreferred: 'primaryPreferred', + secondary: 'secondary', + secondaryPreferred: 'secondaryPreferred', + nearest: 'nearest' +}); +/** + * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is + * used to construct connections. + * @public + * + * @see https://www.mongodb.com/docs/manual/core/read-preference/ + */ +class ReadPreference { + /** + * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest) + * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary. + * @param options - Additional read preference options + */ + constructor(mode, tags, options) { + if (!ReadPreference.isValid(mode)) { + throw new error_1.MongoInvalidArgumentError(`Invalid read preference mode ${JSON.stringify(mode)}`); + } + if (options == null && typeof tags === 'object' && !Array.isArray(tags)) { + options = tags; + tags = undefined; + } + else if (tags && !Array.isArray(tags)) { + throw new error_1.MongoInvalidArgumentError('ReadPreference tags must be an array'); + } + this.mode = mode; + this.tags = tags; + this.hedge = options?.hedge; + this.maxStalenessSeconds = undefined; + this.minWireVersion = undefined; + options = options ?? {}; + if (options.maxStalenessSeconds != null) { + if (options.maxStalenessSeconds <= 0) { + throw new error_1.MongoInvalidArgumentError('maxStalenessSeconds must be a positive integer'); + } + this.maxStalenessSeconds = options.maxStalenessSeconds; + // NOTE: The minimum required wire version is 5 for this read preference. If the existing + // topology has a lower value then a MongoError will be thrown during server selection. + this.minWireVersion = 5; + } + if (this.mode === ReadPreference.PRIMARY) { + if (this.tags && Array.isArray(this.tags) && this.tags.length > 0) { + throw new error_1.MongoInvalidArgumentError('Primary read preference cannot be combined with tags'); + } + if (this.maxStalenessSeconds) { + throw new error_1.MongoInvalidArgumentError('Primary read preference cannot be combined with maxStalenessSeconds'); + } + if (this.hedge) { + throw new error_1.MongoInvalidArgumentError('Primary read preference cannot be combined with hedge'); + } + } + } + // Support the deprecated `preference` property introduced in the porcelain layer + get preference() { + return this.mode; + } + static fromString(mode) { + return new ReadPreference(mode); + } + /** + * Construct a ReadPreference given an options object. + * + * @param options - The options object from which to extract the read preference. + */ + static fromOptions(options) { + if (!options) + return; + const readPreference = options.readPreference ?? options.session?.transaction.options.readPreference; + const readPreferenceTags = options.readPreferenceTags; + if (readPreference == null) { + return; + } + if (typeof readPreference === 'string') { + return new ReadPreference(readPreference, readPreferenceTags, { + maxStalenessSeconds: options.maxStalenessSeconds, + hedge: options.hedge + }); + } + else if (!(readPreference instanceof ReadPreference) && typeof readPreference === 'object') { + const mode = readPreference.mode || readPreference.preference; + if (mode && typeof mode === 'string') { + return new ReadPreference(mode, readPreference.tags ?? readPreferenceTags, { + maxStalenessSeconds: readPreference.maxStalenessSeconds, + hedge: options.hedge + }); + } + } + if (readPreferenceTags) { + readPreference.tags = readPreferenceTags; + } + return readPreference; + } + /** + * Replaces options.readPreference with a ReadPreference instance + */ + static translate(options) { + if (options.readPreference == null) + return options; + const r = options.readPreference; + if (typeof r === 'string') { + options.readPreference = new ReadPreference(r); + } + else if (r && !(r instanceof ReadPreference) && typeof r === 'object') { + const mode = r.mode || r.preference; + if (mode && typeof mode === 'string') { + options.readPreference = new ReadPreference(mode, r.tags, { + maxStalenessSeconds: r.maxStalenessSeconds + }); + } + } + else if (!(r instanceof ReadPreference)) { + throw new error_1.MongoInvalidArgumentError(`Invalid read preference: ${r}`); + } + return options; + } + /** + * Validate if a mode is legal + * + * @param mode - The string representing the read preference mode. + */ + static isValid(mode) { + const VALID_MODES = new Set([ + ReadPreference.PRIMARY, + ReadPreference.PRIMARY_PREFERRED, + ReadPreference.SECONDARY, + ReadPreference.SECONDARY_PREFERRED, + ReadPreference.NEAREST, + null + ]); + return VALID_MODES.has(mode); + } + /** + * Validate if a mode is legal + * + * @param mode - The string representing the read preference mode. + */ + isValid(mode) { + return ReadPreference.isValid(typeof mode === 'string' ? mode : this.mode); + } + /** + * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire + * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query + */ + secondaryOk() { + const NEEDS_SECONDARYOK = new Set([ + ReadPreference.PRIMARY_PREFERRED, + ReadPreference.SECONDARY, + ReadPreference.SECONDARY_PREFERRED, + ReadPreference.NEAREST + ]); + return NEEDS_SECONDARYOK.has(this.mode); + } + /** + * Check if the two ReadPreferences are equivalent + * + * @param readPreference - The read preference with which to check equality + */ + equals(readPreference) { + return readPreference.mode === this.mode; + } + /** Return JSON representation */ + toJSON() { + const readPreference = { mode: this.mode }; + if (Array.isArray(this.tags)) + readPreference.tags = this.tags; + if (this.maxStalenessSeconds) + readPreference.maxStalenessSeconds = this.maxStalenessSeconds; + if (this.hedge) + readPreference.hedge = this.hedge; + return readPreference; + } +} +ReadPreference.PRIMARY = exports.ReadPreferenceMode.primary; +ReadPreference.PRIMARY_PREFERRED = exports.ReadPreferenceMode.primaryPreferred; +ReadPreference.SECONDARY = exports.ReadPreferenceMode.secondary; +ReadPreference.SECONDARY_PREFERRED = exports.ReadPreferenceMode.secondaryPreferred; +ReadPreference.NEAREST = exports.ReadPreferenceMode.nearest; +ReadPreference.primary = new ReadPreference(exports.ReadPreferenceMode.primary); +ReadPreference.primaryPreferred = new ReadPreference(exports.ReadPreferenceMode.primaryPreferred); +ReadPreference.secondary = new ReadPreference(exports.ReadPreferenceMode.secondary); +ReadPreference.secondaryPreferred = new ReadPreference(exports.ReadPreferenceMode.secondaryPreferred); +ReadPreference.nearest = new ReadPreference(exports.ReadPreferenceMode.nearest); +exports.ReadPreference = ReadPreference; +//# sourceMappingURL=read_preference.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/read_preference.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_preference.js.map new file mode 100644 index 000000000..70ba71ac4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/read_preference.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/common.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/common.js new file mode 100644 index 000000000..60b96aa30 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/common.js @@ -0,0 +1,56 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports._advanceClusterTime = exports.drainTimerQueue = exports.ServerType = exports.TopologyType = exports.STATE_CONNECTED = exports.STATE_CONNECTING = exports.STATE_CLOSED = exports.STATE_CLOSING = void 0; +const timers_1 = require("timers"); +// shared state names +exports.STATE_CLOSING = 'closing'; +exports.STATE_CLOSED = 'closed'; +exports.STATE_CONNECTING = 'connecting'; +exports.STATE_CONNECTED = 'connected'; +/** + * An enumeration of topology types we know about + * @public + */ +exports.TopologyType = Object.freeze({ + Single: 'Single', + ReplicaSetNoPrimary: 'ReplicaSetNoPrimary', + ReplicaSetWithPrimary: 'ReplicaSetWithPrimary', + Sharded: 'Sharded', + Unknown: 'Unknown', + LoadBalanced: 'LoadBalanced' +}); +/** + * An enumeration of server types we know about + * @public + */ +exports.ServerType = Object.freeze({ + Standalone: 'Standalone', + Mongos: 'Mongos', + PossiblePrimary: 'PossiblePrimary', + RSPrimary: 'RSPrimary', + RSSecondary: 'RSSecondary', + RSArbiter: 'RSArbiter', + RSOther: 'RSOther', + RSGhost: 'RSGhost', + Unknown: 'Unknown', + LoadBalancer: 'LoadBalancer' +}); +/** @internal */ +function drainTimerQueue(queue) { + queue.forEach(timers_1.clearTimeout); + queue.clear(); +} +exports.drainTimerQueue = drainTimerQueue; +/** Shared function to determine clusterTime for a given topology or session */ +function _advanceClusterTime(entity, $clusterTime) { + if (entity.clusterTime == null) { + entity.clusterTime = $clusterTime; + } + else { + if ($clusterTime.clusterTime.greaterThan(entity.clusterTime.clusterTime)) { + entity.clusterTime = $clusterTime; + } + } +} +exports._advanceClusterTime = _advanceClusterTime; +//# sourceMappingURL=common.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/common.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/common.js.map new file mode 100644 index 000000000..802df6e38 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/common.js.map @@ -0,0 +1 @@ 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previousDescription, newDescription) { + this.name = constants_1.SERVER_DESCRIPTION_CHANGED; + this.topologyId = topologyId; + this.address = address; + this.previousDescription = previousDescription; + this.newDescription = newDescription; + } +} +exports.ServerDescriptionChangedEvent = ServerDescriptionChangedEvent; +/** + * Emitted when server is initialized. + * @public + * @category Event + */ +class ServerOpeningEvent { + /** @internal */ + constructor(topologyId, address) { + /** @internal */ + this.name = constants_1.SERVER_OPENING; + this.topologyId = topologyId; + this.address = address; + } +} +exports.ServerOpeningEvent = ServerOpeningEvent; +/** + * Emitted when server is closed. + * @public + * @category Event + */ +class ServerClosedEvent { + /** @internal */ + constructor(topologyId, address) { + /** @internal */ + this.name = constants_1.SERVER_CLOSED; + this.topologyId = topologyId; + this.address = address; + } +} +exports.ServerClosedEvent = ServerClosedEvent; +/** + * Emitted when topology description changes. + * @public + * @category Event + */ +class TopologyDescriptionChangedEvent { + /** @internal */ + constructor(topologyId, previousDescription, newDescription) { + /** @internal */ + this.name = constants_1.TOPOLOGY_DESCRIPTION_CHANGED; + this.topologyId = topologyId; + this.previousDescription = previousDescription; + this.newDescription = newDescription; + } +} +exports.TopologyDescriptionChangedEvent = TopologyDescriptionChangedEvent; +/** + * Emitted when topology is initialized. + * @public + * @category Event + */ +class TopologyOpeningEvent { + /** @internal */ + constructor(topologyId) { + /** @internal */ + this.name = constants_1.TOPOLOGY_OPENING; + this.topologyId = topologyId; + } +} +exports.TopologyOpeningEvent = TopologyOpeningEvent; +/** + * Emitted when topology is closed. + * @public + * @category Event + */ +class TopologyClosedEvent { + /** @internal */ + constructor(topologyId) { + /** @internal */ + this.name = constants_1.TOPOLOGY_CLOSED; + this.topologyId = topologyId; + } +} +exports.TopologyClosedEvent = TopologyClosedEvent; +/** + * Emitted when the server monitor’s hello command is started - immediately before + * the hello command is serialized into raw BSON and written to the socket. + * + * @public + * @category Event + */ +class ServerHeartbeatStartedEvent { + /** @internal */ + constructor(connectionId, awaited) { + /** @internal */ + this.name = constants_1.SERVER_HEARTBEAT_STARTED; + this.connectionId = connectionId; + this.awaited = awaited; + } +} +exports.ServerHeartbeatStartedEvent = ServerHeartbeatStartedEvent; +/** + * Emitted when the server monitor’s hello succeeds. + * @public + * @category Event + */ +class ServerHeartbeatSucceededEvent { + /** @internal */ + constructor(connectionId, duration, reply, awaited) { + /** @internal */ + this.name = constants_1.SERVER_HEARTBEAT_SUCCEEDED; + this.connectionId = connectionId; + this.duration = duration; + this.reply = reply ?? 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/monitor.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/monitor.js new file mode 100644 index 000000000..fea75ba60 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/monitor.js @@ -0,0 +1,553 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.RTTSampler = exports.MonitorInterval = exports.RTTPinger = exports.Monitor = exports.ServerMonitoringMode = void 0; +const timers_1 = require("timers"); +const bson_1 = require("../bson"); +const connect_1 = require("../cmap/connect"); +const client_metadata_1 = require("../cmap/handshake/client_metadata"); +const constants_1 = require("../constants"); +const error_1 = require("../error"); +const mongo_logger_1 = require("../mongo_logger"); +const mongo_types_1 = require("../mongo_types"); +const utils_1 = require("../utils"); +const common_1 = require("./common"); +const events_1 = require("./events"); +const server_1 = require("./server"); +/** @internal */ +const kServer = Symbol('server'); +/** @internal */ +const kMonitorId = Symbol('monitorId'); +/** @internal */ +const kCancellationToken = Symbol('cancellationToken'); +const STATE_IDLE = 'idle'; +const STATE_MONITORING = 'monitoring'; +const stateTransition = (0, utils_1.makeStateMachine)({ + [common_1.STATE_CLOSING]: [common_1.STATE_CLOSING, STATE_IDLE, common_1.STATE_CLOSED], + [common_1.STATE_CLOSED]: [common_1.STATE_CLOSED, STATE_MONITORING], + [STATE_IDLE]: [STATE_IDLE, STATE_MONITORING, common_1.STATE_CLOSING], + [STATE_MONITORING]: [STATE_MONITORING, STATE_IDLE, common_1.STATE_CLOSING] +}); +const INVALID_REQUEST_CHECK_STATES = new Set([common_1.STATE_CLOSING, common_1.STATE_CLOSED, STATE_MONITORING]); +function isInCloseState(monitor) { + return monitor.s.state === common_1.STATE_CLOSED || monitor.s.state === common_1.STATE_CLOSING; +} +/** @public */ +exports.ServerMonitoringMode = Object.freeze({ + auto: 'auto', + poll: 'poll', + stream: 'stream' +}); +/** @internal */ +class Monitor extends mongo_types_1.TypedEventEmitter { + constructor(server, options) { + super(); + /** @internal */ + this.component = mongo_logger_1.MongoLoggableComponent.TOPOLOGY; + this[kServer] = server; + this.connection = null; + this[kCancellationToken] = new mongo_types_1.CancellationToken(); + this[kCancellationToken].setMaxListeners(Infinity); + this[kMonitorId] = undefined; + this.s = { + state: common_1.STATE_CLOSED + }; + this.address = server.description.address; + this.options = Object.freeze({ + connectTimeoutMS: options.connectTimeoutMS ?? 10000, + heartbeatFrequencyMS: options.heartbeatFrequencyMS ?? 10000, + minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS ?? 500, + serverMonitoringMode: options.serverMonitoringMode + }); + this.isRunningInFaasEnv = (0, client_metadata_1.getFAASEnv)() != null; + this.mongoLogger = this[kServer].topology.client?.mongoLogger; + this.rttSampler = new RTTSampler(10); + const cancellationToken = this[kCancellationToken]; + // TODO: refactor this to pull it directly from the pool, requires new ConnectionPool integration + const connectOptions = { + id: '', + generation: server.pool.generation, + cancellationToken, + hostAddress: server.description.hostAddress, + ...options, + // force BSON serialization options + raw: false, + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: true + }; + // ensure no authentication is used for monitoring + delete connectOptions.credentials; + if (connectOptions.autoEncrypter) { + delete connectOptions.autoEncrypter; + } + this.connectOptions = Object.freeze(connectOptions); + } + connect() { + if (this.s.state !== common_1.STATE_CLOSED) { + return; + } + // start + const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS; + const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS; + this[kMonitorId] = new MonitorInterval(monitorServer(this), { + heartbeatFrequencyMS: heartbeatFrequencyMS, + minHeartbeatFrequencyMS: minHeartbeatFrequencyMS, + immediate: true + }); + } + requestCheck() { + if (INVALID_REQUEST_CHECK_STATES.has(this.s.state)) { + return; + } + this[kMonitorId]?.wake(); + } + reset() { + const topologyVersion = this[kServer].description.topologyVersion; + if (isInCloseState(this) || topologyVersion == null) { + return; + } + stateTransition(this, common_1.STATE_CLOSING); + resetMonitorState(this); + // restart monitor + stateTransition(this, STATE_IDLE); + // restart monitoring + const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS; + const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS; + this[kMonitorId] = new MonitorInterval(monitorServer(this), { + heartbeatFrequencyMS: heartbeatFrequencyMS, + minHeartbeatFrequencyMS: minHeartbeatFrequencyMS + }); + } + close() { + if (isInCloseState(this)) { + return; + } + stateTransition(this, common_1.STATE_CLOSING); + resetMonitorState(this); + // close monitor + this.emit('close'); + stateTransition(this, common_1.STATE_CLOSED); + } + get roundTripTime() { + return this.rttSampler.average(); + } + get minRoundTripTime() { + return this.rttSampler.min(); + } + get latestRtt() { + return this.rttSampler.last; + } + addRttSample(rtt) { + this.rttSampler.addSample(rtt); + } + clearRttSamples() { + this.rttSampler.clear(); + } +} +exports.Monitor = Monitor; +function resetMonitorState(monitor) { + monitor[kMonitorId]?.stop(); + monitor[kMonitorId] = undefined; + monitor.rttPinger?.close(); + monitor.rttPinger = undefined; + monitor[kCancellationToken].emit('cancel'); + monitor.connection?.destroy(); + monitor.connection = null; + monitor.clearRttSamples(); +} +function useStreamingProtocol(monitor, topologyVersion) { + // If we have no topology version we always poll no matter + // what the user provided, since the server does not support + // the streaming protocol. + if (topologyVersion == null) + return false; + const serverMonitoringMode = monitor.options.serverMonitoringMode; + if (serverMonitoringMode === exports.ServerMonitoringMode.poll) + return false; + if (serverMonitoringMode === exports.ServerMonitoringMode.stream) + return true; + // If we are in auto mode, we need to figure out if we're in a FaaS + // environment or not and choose the appropriate mode. + if (monitor.isRunningInFaasEnv) + return false; + return true; +} +function checkServer(monitor, callback) { + let start; + let awaited; + const topologyVersion = monitor[kServer].description.topologyVersion; + const isAwaitable = useStreamingProtocol(monitor, topologyVersion); + monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_STARTED, monitor[kServer].topology.s.id, undefined, new events_1.ServerHeartbeatStartedEvent(monitor.address, isAwaitable)); + function onHeartbeatFailed(err) { + monitor.connection?.destroy(); + monitor.connection = null; + monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_FAILED, monitor[kServer].topology.s.id, undefined, new events_1.ServerHeartbeatFailedEvent(monitor.address, (0, utils_1.calculateDurationInMs)(start), err, awaited)); + const error = !(err instanceof error_1.MongoError) + ? new error_1.MongoError(error_1.MongoError.buildErrorMessage(err), { cause: err }) + : err; + error.addErrorLabel(error_1.MongoErrorLabel.ResetPool); + if (error instanceof error_1.MongoNetworkTimeoutError) { + error.addErrorLabel(error_1.MongoErrorLabel.InterruptInUseConnections); + } + monitor.emit('resetServer', error); + callback(err); + } + function onHeartbeatSucceeded(hello) { + if (!('isWritablePrimary' in hello)) { + // Provide hello-style response document. + hello.isWritablePrimary = hello[constants_1.LEGACY_HELLO_COMMAND]; + } + // NOTE: here we use the latestRtt as this measurement corresponds with the value + // obtained for this successful heartbeat, if there is no latestRtt, then we calculate the + // duration + const duration = isAwaitable && monitor.rttPinger + ? monitor.rttPinger.latestRtt ?? (0, utils_1.calculateDurationInMs)(start) + : (0, utils_1.calculateDurationInMs)(start); + monitor.addRttSample(duration); + monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_SUCCEEDED, monitor[kServer].topology.s.id, hello.connectionId, new events_1.ServerHeartbeatSucceededEvent(monitor.address, duration, hello, isAwaitable)); + if (isAwaitable) { + // If we are using the streaming protocol then we immediately issue another 'started' + // event, otherwise the "check" is complete and return to the main monitor loop + monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_STARTED, monitor[kServer].topology.s.id, undefined, new events_1.ServerHeartbeatStartedEvent(monitor.address, true)); + // We have not actually sent an outgoing handshake, but when we get the next response we + // want the duration to reflect the time since we last heard from the server + start = (0, utils_1.now)(); + } + else { + monitor.rttPinger?.close(); + monitor.rttPinger = undefined; + callback(undefined, hello); + } + } + const { connection } = monitor; + if (connection && !connection.closed) { + const { serverApi, helloOk } = connection; + const connectTimeoutMS = monitor.options.connectTimeoutMS; + const maxAwaitTimeMS = monitor.options.heartbeatFrequencyMS; + const cmd = { + [serverApi?.version || helloOk ? 'hello' : constants_1.LEGACY_HELLO_COMMAND]: 1, + ...(isAwaitable && topologyVersion + ? { maxAwaitTimeMS, topologyVersion: makeTopologyVersion(topologyVersion) } + : {}) + }; + const options = isAwaitable + ? { + socketTimeoutMS: connectTimeoutMS ? connectTimeoutMS + maxAwaitTimeMS : 0, + exhaustAllowed: true + } + : { socketTimeoutMS: connectTimeoutMS }; + if (isAwaitable && monitor.rttPinger == null) { + monitor.rttPinger = new RTTPinger(monitor); + } + // Record new start time before sending handshake + start = (0, utils_1.now)(); + if (isAwaitable) { + awaited = true; + return connection.exhaustCommand((0, utils_1.ns)('admin.$cmd'), cmd, options, (error, hello) => { + if (error) + return onHeartbeatFailed(error); + return onHeartbeatSucceeded(hello); + }); + } + awaited = false; + connection + .command((0, utils_1.ns)('admin.$cmd'), cmd, options) + // eslint-disable-next-line github/no-then + .then(onHeartbeatSucceeded, onHeartbeatFailed); + return; + } + // connecting does an implicit `hello` + (async () => { + const socket = await (0, connect_1.makeSocket)(monitor.connectOptions); + const connection = (0, connect_1.makeConnection)(monitor.connectOptions, socket); + // The start time is after socket creation but before the handshake + start = (0, utils_1.now)(); + try { + await (0, connect_1.performInitialHandshake)(connection, monitor.connectOptions); + return connection; + } + catch (error) { + connection.destroy(); + throw error; + } + // eslint-disable-next-line github/no-then + })().then(connection => { + if (isInCloseState(monitor)) { + connection.destroy(); + return; + } + const duration = (0, utils_1.calculateDurationInMs)(start); + monitor.addRttSample(duration); + monitor.connection = connection; + monitor.emitAndLogHeartbeat(server_1.Server.SERVER_HEARTBEAT_SUCCEEDED, monitor[kServer].topology.s.id, connection.hello?.connectionId, new events_1.ServerHeartbeatSucceededEvent(monitor.address, duration, connection.hello, useStreamingProtocol(monitor, connection.hello?.topologyVersion))); + callback(undefined, connection.hello); + }, error => { + monitor.connection = null; + awaited = false; + onHeartbeatFailed(error); + }); +} +function monitorServer(monitor) { + return (callback) => { + if (monitor.s.state === STATE_MONITORING) { + process.nextTick(callback); + return; + } + stateTransition(monitor, STATE_MONITORING); + function done() { + if (!isInCloseState(monitor)) { + stateTransition(monitor, STATE_IDLE); + } + callback(); + } + checkServer(monitor, (err, hello) => { + if (err) { + // otherwise an error occurred on initial discovery, also bail + if (monitor[kServer].description.type === common_1.ServerType.Unknown) { + return done(); + } + } + // if the check indicates streaming is supported, immediately reschedule monitoring + if (useStreamingProtocol(monitor, hello?.topologyVersion)) { + (0, timers_1.setTimeout)(() => { + if (!isInCloseState(monitor)) { + monitor[kMonitorId]?.wake(); + } + }, 0); + } + done(); + }); + }; +} +function makeTopologyVersion(tv) { + return { + processId: tv.processId, + // tests mock counter as just number, but in a real situation counter should always be a Long + // TODO(NODE-2674): Preserve int64 sent from MongoDB + counter: bson_1.Long.isLong(tv.counter) ? tv.counter : bson_1.Long.fromNumber(tv.counter) + }; +} +/** @internal */ +class RTTPinger { + constructor(monitor) { + this.connection = undefined; + this[kCancellationToken] = monitor[kCancellationToken]; + this.closed = false; + this.monitor = monitor; + this.latestRtt = monitor.latestRtt ?? undefined; + const heartbeatFrequencyMS = monitor.options.heartbeatFrequencyMS; + this[kMonitorId] = (0, timers_1.setTimeout)(() => this.measureRoundTripTime(), heartbeatFrequencyMS); + } + get roundTripTime() { + return this.monitor.roundTripTime; + } + get minRoundTripTime() { + return this.monitor.minRoundTripTime; + } + close() { + this.closed = true; + (0, timers_1.clearTimeout)(this[kMonitorId]); + this.connection?.destroy(); + this.connection = undefined; + } + measureAndReschedule(start, conn) { + if (this.closed) { + conn?.destroy(); + return; + } + if (this.connection == null) { + this.connection = conn; + } + this.latestRtt = (0, utils_1.calculateDurationInMs)(start); + this[kMonitorId] = (0, timers_1.setTimeout)(() => this.measureRoundTripTime(), this.monitor.options.heartbeatFrequencyMS); + } + measureRoundTripTime() { + const start = (0, utils_1.now)(); + if (this.closed) { + return; + } + const connection = this.connection; + if (connection == null) { + // eslint-disable-next-line github/no-then + (0, connect_1.connect)(this.monitor.connectOptions).then(connection => { + this.measureAndReschedule(start, connection); + }, () => { + this.connection = undefined; + }); + return; + } + const commandName = connection.serverApi?.version || connection.helloOk ? 'hello' : constants_1.LEGACY_HELLO_COMMAND; + // eslint-disable-next-line github/no-then + connection.command((0, utils_1.ns)('admin.$cmd'), { [commandName]: 1 }, undefined).then(() => this.measureAndReschedule(start), () => { + this.connection?.destroy(); + this.connection = undefined; + return; + }); + } +} +exports.RTTPinger = RTTPinger; +/** + * @internal + */ +class MonitorInterval { + constructor(fn, options = {}) { + this.isExpeditedCallToFnScheduled = false; + this.stopped = false; + this.isExecutionInProgress = false; + this.hasExecutedOnce = false; + this._executeAndReschedule = () => { + if (this.stopped) + return; + if (this.timerId) { + (0, timers_1.clearTimeout)(this.timerId); + } + this.isExpeditedCallToFnScheduled = false; + this.isExecutionInProgress = true; + this.fn(() => { + this.lastExecutionEnded = (0, utils_1.now)(); + this.isExecutionInProgress = false; + this._reschedule(this.heartbeatFrequencyMS); + }); + }; + this.fn = fn; + this.lastExecutionEnded = -Infinity; + this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 1000; + this.minHeartbeatFrequencyMS = options.minHeartbeatFrequencyMS ?? 500; + if (options.immediate) { + this._executeAndReschedule(); + } + else { + this._reschedule(undefined); + } + } + wake() { + const currentTime = (0, utils_1.now)(); + const timeSinceLastCall = currentTime - this.lastExecutionEnded; + // TODO(NODE-4674): Add error handling and logging to the monitor + if (timeSinceLastCall < 0) { + return this._executeAndReschedule(); + } + if (this.isExecutionInProgress) { + return; + } + // debounce multiple calls to wake within the `minInterval` + if (this.isExpeditedCallToFnScheduled) { + return; + } + // reschedule a call as soon as possible, ensuring the call never happens + // faster than the `minInterval` + if (timeSinceLastCall < this.minHeartbeatFrequencyMS) { + this.isExpeditedCallToFnScheduled = true; + this._reschedule(this.minHeartbeatFrequencyMS - timeSinceLastCall); + return; + } + this._executeAndReschedule(); + } + stop() { + this.stopped = true; + if (this.timerId) { + (0, timers_1.clearTimeout)(this.timerId); + this.timerId = undefined; + } + this.lastExecutionEnded = -Infinity; + this.isExpeditedCallToFnScheduled = false; + } + toString() { + return JSON.stringify(this); + } + toJSON() { + const currentTime = (0, utils_1.now)(); + const timeSinceLastCall = currentTime - this.lastExecutionEnded; + return { + timerId: this.timerId != null ? 'set' : 'cleared', + lastCallTime: this.lastExecutionEnded, + isExpeditedCheckScheduled: this.isExpeditedCallToFnScheduled, + stopped: this.stopped, + heartbeatFrequencyMS: this.heartbeatFrequencyMS, + minHeartbeatFrequencyMS: this.minHeartbeatFrequencyMS, + currentTime, + timeSinceLastCall + }; + } + _reschedule(ms) { + if (this.stopped) + return; + if (this.timerId) { + (0, timers_1.clearTimeout)(this.timerId); + } + this.timerId = (0, timers_1.setTimeout)(this._executeAndReschedule, ms || this.heartbeatFrequencyMS); + } +} +exports.MonitorInterval = MonitorInterval; +/** @internal + * This class implements the RTT sampling logic specified for [CSOT](https://github.com/mongodb/specifications/blob/bbb335e60cd7ea1e0f7cd9a9443cb95fc9d3b64d/source/client-side-operations-timeout/client-side-operations-timeout.md#drivers-use-minimum-rtt-to-short-circuit-operations) + * + * This is implemented as a [circular buffer](https://en.wikipedia.org/wiki/Circular_buffer) keeping + * the most recent `windowSize` samples + * */ +class RTTSampler { + constructor(windowSize = 10) { + this.rttSamples = new Float64Array(windowSize); + this.length = 0; + this.writeIndex = 0; + } + /** + * Adds an rtt sample to the end of the circular buffer + * When `windowSize` samples have been collected, `addSample` overwrites the least recently added + * sample + */ + addSample(sample) { + this.rttSamples[this.writeIndex++] = sample; + if (this.length < this.rttSamples.length) { + this.length++; + } + this.writeIndex %= this.rttSamples.length; + } + /** + * When \< 2 samples have been collected, returns 0 + * Otherwise computes the minimum value samples contained in the buffer + */ + min() { + if (this.length < 2) + return 0; + let min = this.rttSamples[0]; + for (let i = 1; i < this.length; i++) { + if (this.rttSamples[i] < min) + min = this.rttSamples[i]; + } + return min; + } + /** + * Returns mean of samples contained in the buffer + */ + average() { + if (this.length === 0) + return 0; + let sum = 0; + for (let i = 0; i < this.length; i++) { + sum += this.rttSamples[i]; + } + return sum / this.length; + } + /** + * Returns most recently inserted element in the buffer + * Returns null if the buffer is empty + * */ + get last() { + if (this.length === 0) + return null; + return this.rttSamples[this.writeIndex === 0 ? this.length - 1 : this.writeIndex - 1]; + } + /** + * Clear the buffer + * NOTE: this does not overwrite the data held in the internal array, just the pointers into + * this array + */ + clear() { + this.length = 0; + this.writeIndex = 0; + } +} +exports.RTTSampler = RTTSampler; +//# sourceMappingURL=monitor.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/monitor.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/monitor.js.map new file mode 100644 index 000000000..4947742b0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/monitor.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server.js new file mode 100644 index 000000000..dae0ac058 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server.js @@ -0,0 +1,356 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Server = void 0; +const connection_1 = require("../cmap/connection"); +const connection_pool_1 = require("../cmap/connection_pool"); +const errors_1 = require("../cmap/errors"); +const constants_1 = require("../constants"); +const error_1 = require("../error"); +const mongo_types_1 = require("../mongo_types"); +const transactions_1 = require("../transactions"); +const utils_1 = require("../utils"); +const common_1 = require("./common"); +const monitor_1 = require("./monitor"); +const server_description_1 = require("./server_description"); +const stateTransition = (0, utils_1.makeStateMachine)({ + [common_1.STATE_CLOSED]: [common_1.STATE_CLOSED, common_1.STATE_CONNECTING], + [common_1.STATE_CONNECTING]: [common_1.STATE_CONNECTING, common_1.STATE_CLOSING, common_1.STATE_CONNECTED, common_1.STATE_CLOSED], + [common_1.STATE_CONNECTED]: [common_1.STATE_CONNECTED, common_1.STATE_CLOSING, common_1.STATE_CLOSED], + [common_1.STATE_CLOSING]: [common_1.STATE_CLOSING, common_1.STATE_CLOSED] +}); +/** @internal */ +class Server extends mongo_types_1.TypedEventEmitter { + /** + * Create a server + */ + constructor(topology, description, options) { + super(); + this.serverApi = options.serverApi; + const poolOptions = { hostAddress: description.hostAddress, ...options }; + this.topology = topology; + this.pool = new connection_pool_1.ConnectionPool(this, poolOptions); + this.s = { + description, + options, + state: common_1.STATE_CLOSED, + operationCount: 0 + }; + for (const event of [...constants_1.CMAP_EVENTS, ...constants_1.APM_EVENTS]) { + this.pool.on(event, (e) => this.emit(event, e)); + } + this.pool.on(connection_1.Connection.CLUSTER_TIME_RECEIVED, (clusterTime) => { + this.clusterTime = clusterTime; + }); + if (this.loadBalanced) { + this.monitor = null; + // monitoring is disabled in load balancing mode + return; + } + // create the monitor + this.monitor = new monitor_1.Monitor(this, this.s.options); + for (const event of constants_1.HEARTBEAT_EVENTS) { + this.monitor.on(event, (e) => this.emit(event, e)); + } + this.monitor.on('resetServer', (error) => markServerUnknown(this, error)); + this.monitor.on(Server.SERVER_HEARTBEAT_SUCCEEDED, (event) => { + this.emit(Server.DESCRIPTION_RECEIVED, new server_description_1.ServerDescription(this.description.hostAddress, event.reply, { + roundTripTime: this.monitor?.roundTripTime, + minRoundTripTime: this.monitor?.minRoundTripTime + })); + if (this.s.state === common_1.STATE_CONNECTING) { + stateTransition(this, common_1.STATE_CONNECTED); + this.emit(Server.CONNECT, this); + } + }); + } + get clusterTime() { + return this.topology.clusterTime; + } + set clusterTime(clusterTime) { + this.topology.clusterTime = clusterTime; + } + get description() { + return this.s.description; + } + get name() { + return this.s.description.address; + } + get autoEncrypter() { + if (this.s.options && this.s.options.autoEncrypter) { + return this.s.options.autoEncrypter; + } + return; + } + get loadBalanced() { + return this.topology.description.type === common_1.TopologyType.LoadBalanced; + } + /** + * Initiate server connect + */ + connect() { + if (this.s.state !== common_1.STATE_CLOSED) { + return; + } + stateTransition(this, common_1.STATE_CONNECTING); + // If in load balancer mode we automatically set the server to + // a load balancer. It never transitions out of this state and + // has no monitor. + if (!this.loadBalanced) { + this.monitor?.connect(); + } + else { + stateTransition(this, common_1.STATE_CONNECTED); + this.emit(Server.CONNECT, this); + } + } + /** Destroy the server connection */ + destroy() { + if (this.s.state === common_1.STATE_CLOSED) { + return; + } + stateTransition(this, common_1.STATE_CLOSING); + if (!this.loadBalanced) { + this.monitor?.close(); + } + this.pool.close(); + stateTransition(this, common_1.STATE_CLOSED); + this.emit('closed'); + } + /** + * Immediately schedule monitoring of this server. If there already an attempt being made + * this will be a no-op. + */ + requestCheck() { + if (!this.loadBalanced) { + this.monitor?.requestCheck(); + } + } + async command(ns, cmd, options, responseType) { + if (ns.db == null || typeof ns === 'string') { + throw new error_1.MongoInvalidArgumentError('Namespace must not be a string'); + } + if (this.s.state === common_1.STATE_CLOSING || this.s.state === common_1.STATE_CLOSED) { + throw new error_1.MongoServerClosedError(); + } + // Clone the options + const finalOptions = Object.assign({}, options, { + wireProtocolCommand: false, + directConnection: this.topology.s.options.directConnection + }); + // There are cases where we need to flag the read preference not to get sent in + // the command, such as pre-5.0 servers attempting to perform an aggregate write + // with a non-primary read preference. In this case the effective read preference + // (primary) is not the same as the provided and must be removed completely. + if (finalOptions.omitReadPreference) { + delete finalOptions.readPreference; + } + const session = finalOptions.session; + let conn = session?.pinnedConnection; + this.incrementOperationCount(); + if (conn == null) { + try { + conn = await this.pool.checkOut(); + if (this.loadBalanced && isPinnableCommand(cmd, session)) { + session?.pin(conn); + } + } + catch (checkoutError) { + this.decrementOperationCount(); + if (!(checkoutError instanceof errors_1.PoolClearedError)) + this.handleError(checkoutError); + throw checkoutError; + } + } + try { + try { + return await conn.command(ns, cmd, finalOptions, responseType); + } + catch (commandError) { + throw this.decorateCommandError(conn, cmd, finalOptions, commandError); + } + } + catch (operationError) { + if (operationError instanceof error_1.MongoError && + operationError.code === error_1.MONGODB_ERROR_CODES.Reauthenticate) { + await this.pool.reauthenticate(conn); + try { + return await conn.command(ns, cmd, finalOptions, responseType); + } + catch (commandError) { + throw this.decorateCommandError(conn, cmd, finalOptions, commandError); + } + } + else { + throw operationError; + } + } + finally { + this.decrementOperationCount(); + if (session?.pinnedConnection !== conn) { + this.pool.checkIn(conn); + } + } + } + /** + * Handle SDAM error + * @internal + */ + handleError(error, connection) { + if (!(error instanceof error_1.MongoError)) { + return; + } + const isStaleError = error.connectionGeneration && error.connectionGeneration < this.pool.generation; + if (isStaleError) { + return; + } + const isNetworkNonTimeoutError = error instanceof error_1.MongoNetworkError && !(error instanceof error_1.MongoNetworkTimeoutError); + const isNetworkTimeoutBeforeHandshakeError = (0, error_1.isNetworkErrorBeforeHandshake)(error); + const isAuthHandshakeError = error.hasErrorLabel(error_1.MongoErrorLabel.HandshakeError); + if (isNetworkNonTimeoutError || isNetworkTimeoutBeforeHandshakeError || isAuthHandshakeError) { + // In load balanced mode we never mark the server as unknown and always + // clear for the specific service id. + if (!this.loadBalanced) { + error.addErrorLabel(error_1.MongoErrorLabel.ResetPool); + markServerUnknown(this, error); + } + else if (connection) { + this.pool.clear({ serviceId: connection.serviceId }); + } + } + else { + if ((0, error_1.isSDAMUnrecoverableError)(error)) { + if (shouldHandleStateChangeError(this, error)) { + const shouldClearPool = (0, utils_1.maxWireVersion)(this) <= 7 || (0, error_1.isNodeShuttingDownError)(error); + if (this.loadBalanced && connection && shouldClearPool) { + this.pool.clear({ serviceId: connection.serviceId }); + } + if (!this.loadBalanced) { + if (shouldClearPool) { + error.addErrorLabel(error_1.MongoErrorLabel.ResetPool); + } + markServerUnknown(this, error); + process.nextTick(() => this.requestCheck()); + } + } + } + } + } + /** + * Ensure that error is properly decorated and internal state is updated before throwing + * @internal + */ + decorateCommandError(connection, cmd, options, error) { + if (typeof error !== 'object' || error == null || !('name' in error)) { + throw new error_1.MongoRuntimeError('An unexpected error type: ' + typeof error); + } + if (error.name === 'AbortError' && 'cause' in error && error.cause instanceof error_1.MongoError) { + error = error.cause; + } + if (!(error instanceof error_1.MongoError)) { + // Node.js or some other error we have not special handling for + return error; + } + if (connectionIsStale(this.pool, connection)) { + return error; + } + const session = options?.session; + if (error instanceof error_1.MongoNetworkError) { + if (session && !session.hasEnded && session.serverSession) { + session.serverSession.isDirty = true; + } + // inActiveTransaction check handles commit and abort. + if (inActiveTransaction(session, cmd) && + !error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) { + error.addErrorLabel(error_1.MongoErrorLabel.TransientTransactionError); + } + if ((isRetryableWritesEnabled(this.topology) || (0, transactions_1.isTransactionCommand)(cmd)) && + (0, utils_1.supportsRetryableWrites)(this) && + !inActiveTransaction(session, cmd)) { + error.addErrorLabel(error_1.MongoErrorLabel.RetryableWriteError); + } + } + else { + if ((isRetryableWritesEnabled(this.topology) || (0, transactions_1.isTransactionCommand)(cmd)) && + (0, error_1.needsRetryableWriteLabel)(error, (0, utils_1.maxWireVersion)(this)) && + !inActiveTransaction(session, cmd)) { + error.addErrorLabel(error_1.MongoErrorLabel.RetryableWriteError); + } + } + if (session && + session.isPinned && + error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) { + session.unpin({ force: true }); + } + this.handleError(error, connection); + return error; + } + /** + * Decrement the operation count, returning the new count. + */ + decrementOperationCount() { + return (this.s.operationCount -= 1); + } + /** + * Increment the operation count, returning the new count. + */ + incrementOperationCount() { + return (this.s.operationCount += 1); + } +} +/** @event */ +Server.SERVER_HEARTBEAT_STARTED = constants_1.SERVER_HEARTBEAT_STARTED; +/** @event */ +Server.SERVER_HEARTBEAT_SUCCEEDED = constants_1.SERVER_HEARTBEAT_SUCCEEDED; +/** @event */ +Server.SERVER_HEARTBEAT_FAILED = constants_1.SERVER_HEARTBEAT_FAILED; +/** @event */ +Server.CONNECT = constants_1.CONNECT; +/** @event */ +Server.DESCRIPTION_RECEIVED = constants_1.DESCRIPTION_RECEIVED; +/** @event */ +Server.CLOSED = constants_1.CLOSED; +/** @event */ +Server.ENDED = constants_1.ENDED; +exports.Server = Server; +function markServerUnknown(server, error) { + // Load balancer servers can never be marked unknown. + if (server.loadBalanced) { + return; + } + if (error instanceof error_1.MongoNetworkError && !(error instanceof error_1.MongoNetworkTimeoutError)) { + server.monitor?.reset(); + } + server.emit(Server.DESCRIPTION_RECEIVED, new server_description_1.ServerDescription(server.description.hostAddress, undefined, { error })); +} +function isPinnableCommand(cmd, session) { + if (session) { + return (session.inTransaction() || + (session.transaction.isCommitted && 'commitTransaction' in cmd) || + 'aggregate' in cmd || + 'find' in cmd || + 'getMore' in cmd || + 'listCollections' in cmd || + 'listIndexes' in cmd); + } + return false; +} +function connectionIsStale(pool, connection) { + if (connection.serviceId) { + return (connection.generation !== pool.serviceGenerations.get(connection.serviceId.toHexString())); + } + return connection.generation !== pool.generation; +} +function shouldHandleStateChangeError(server, err) { + const etv = err.topologyVersion; + const stv = server.description.topologyVersion; + return (0, server_description_1.compareTopologyVersion)(stv, etv) < 0; +} +function inActiveTransaction(session, cmd) { + return session && session.inTransaction() && !(0, transactions_1.isTransactionCommand)(cmd); +} +/** this checks the retryWrites option passed down from the client options, it + * does not check if the server supports retryable writes */ +function isRetryableWritesEnabled(topology) { + return topology.s.options.retryWrites !== false; +} +//# sourceMappingURL=server.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server.js.map new file mode 100644 index 000000000..31eca5d4a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_description.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_description.js new file mode 100644 index 000000000..7047979ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_description.js @@ -0,0 +1,190 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.compareTopologyVersion = exports.parseServerType = exports.ServerDescription = void 0; +const bson_1 = require("../bson"); +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const common_1 = require("./common"); +const WRITABLE_SERVER_TYPES = new Set([ + common_1.ServerType.RSPrimary, + common_1.ServerType.Standalone, + common_1.ServerType.Mongos, + common_1.ServerType.LoadBalancer +]); +const DATA_BEARING_SERVER_TYPES = new Set([ + common_1.ServerType.RSPrimary, + common_1.ServerType.RSSecondary, + common_1.ServerType.Mongos, + common_1.ServerType.Standalone, + common_1.ServerType.LoadBalancer +]); +/** + * The client's view of a single server, based on the most recent hello outcome. + * + * Internal type, not meant to be directly instantiated + * @public + */ +class ServerDescription { + /** + * Create a ServerDescription + * @internal + * + * @param address - The address of the server + * @param hello - An optional hello response for this server + */ + constructor(address, hello, options = {}) { + if (address == null || address === '') { + throw new error_1.MongoRuntimeError('ServerDescription must be provided with a non-empty address'); + } + this.address = + typeof address === 'string' + ? utils_1.HostAddress.fromString(address).toString() // Use HostAddress to normalize + : address.toString(); + this.type = parseServerType(hello, options); + this.hosts = hello?.hosts?.map((host) => host.toLowerCase()) ?? []; + this.passives = hello?.passives?.map((host) => host.toLowerCase()) ?? []; + this.arbiters = hello?.arbiters?.map((host) => host.toLowerCase()) ?? []; + this.tags = hello?.tags ?? {}; + this.minWireVersion = hello?.minWireVersion ?? 0; + this.maxWireVersion = hello?.maxWireVersion ?? 0; + this.roundTripTime = options?.roundTripTime ?? -1; + this.minRoundTripTime = options?.minRoundTripTime ?? 0; + this.lastUpdateTime = (0, utils_1.now)(); + this.lastWriteDate = hello?.lastWrite?.lastWriteDate ?? 0; + this.error = options.error ?? null; + // TODO(NODE-2674): Preserve int64 sent from MongoDB + this.topologyVersion = this.error?.topologyVersion ?? hello?.topologyVersion ?? null; + this.setName = hello?.setName ?? null; + this.setVersion = hello?.setVersion ?? null; + this.electionId = hello?.electionId ?? null; + this.logicalSessionTimeoutMinutes = hello?.logicalSessionTimeoutMinutes ?? null; + this.primary = hello?.primary ?? null; + this.me = hello?.me?.toLowerCase() ?? null; + this.$clusterTime = hello?.$clusterTime ?? null; + } + get hostAddress() { + return utils_1.HostAddress.fromString(this.address); + } + get allHosts() { + return this.hosts.concat(this.arbiters).concat(this.passives); + } + /** Is this server available for reads*/ + get isReadable() { + return this.type === common_1.ServerType.RSSecondary || this.isWritable; + } + /** Is this server data bearing */ + get isDataBearing() { + return DATA_BEARING_SERVER_TYPES.has(this.type); + } + /** Is this server available for writes */ + get isWritable() { + return WRITABLE_SERVER_TYPES.has(this.type); + } + get host() { + const chopLength = `:${this.port}`.length; + return this.address.slice(0, -chopLength); + } + get port() { + const port = this.address.split(':').pop(); + return port ? Number.parseInt(port, 10) : 27017; + } + /** + * Determines if another `ServerDescription` is equal to this one per the rules defined + * in the {@link https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#serverdescription|SDAM spec} + */ + equals(other) { + // Despite using the comparator that would determine a nullish topologyVersion as greater than + // for equality we should only always perform direct equality comparison + const topologyVersionsEqual = this.topologyVersion === other?.topologyVersion || + compareTopologyVersion(this.topologyVersion, other?.topologyVersion) === 0; + const electionIdsEqual = this.electionId != null && other?.electionId != null + ? (0, utils_1.compareObjectId)(this.electionId, other.electionId) === 0 + : this.electionId === other?.electionId; + return (other != null && + (0, utils_1.errorStrictEqual)(this.error, other.error) && + this.type === other.type && + this.minWireVersion === other.minWireVersion && + (0, utils_1.arrayStrictEqual)(this.hosts, other.hosts) && + tagsStrictEqual(this.tags, other.tags) && + this.setName === other.setName && + this.setVersion === other.setVersion && + electionIdsEqual && + this.primary === other.primary && + this.logicalSessionTimeoutMinutes === other.logicalSessionTimeoutMinutes && + topologyVersionsEqual); + } +} +exports.ServerDescription = ServerDescription; +// Parses a `hello` message and determines the server type +function parseServerType(hello, options) { + if (options?.loadBalanced) { + return common_1.ServerType.LoadBalancer; + } + if (!hello || !hello.ok) { + return common_1.ServerType.Unknown; + } + if (hello.isreplicaset) { + return common_1.ServerType.RSGhost; + } + if (hello.msg && hello.msg === 'isdbgrid') { + return common_1.ServerType.Mongos; + } + if (hello.setName) { + if (hello.hidden) { + return common_1.ServerType.RSOther; + } + else if (hello.isWritablePrimary) { + return common_1.ServerType.RSPrimary; + } + else if (hello.secondary) { + return common_1.ServerType.RSSecondary; + } + else if (hello.arbiterOnly) { + return common_1.ServerType.RSArbiter; + } + else { + return common_1.ServerType.RSOther; + } + } + return common_1.ServerType.Standalone; +} +exports.parseServerType = parseServerType; +function tagsStrictEqual(tags, tags2) { + const tagsKeys = Object.keys(tags); + const tags2Keys = Object.keys(tags2); + return (tagsKeys.length === tags2Keys.length && + tagsKeys.every((key) => tags2[key] === tags[key])); +} +/** + * Compares two topology versions. + * + * 1. If the response topologyVersion is unset or the ServerDescription's + * topologyVersion is null, the client MUST assume the response is more recent. + * 1. If the response's topologyVersion.processId is not equal to the + * ServerDescription's, the client MUST assume the response is more recent. + * 1. If the response's topologyVersion.processId is equal to the + * ServerDescription's, the client MUST use the counter field to determine + * which topologyVersion is more recent. + * + * ```ts + * currentTv < newTv === -1 + * currentTv === newTv === 0 + * currentTv > newTv === 1 + * ``` + */ +function compareTopologyVersion(currentTv, newTv) { + if (currentTv == null || newTv == null) { + return -1; + } + if (!currentTv.processId.equals(newTv.processId)) { + return -1; + } + // TODO(NODE-2674): Preserve int64 sent from MongoDB + const currentCounter = bson_1.Long.isLong(currentTv.counter) + ? currentTv.counter + : bson_1.Long.fromNumber(currentTv.counter); + const newCounter = bson_1.Long.isLong(newTv.counter) ? newTv.counter : bson_1.Long.fromNumber(newTv.counter); + return currentCounter.compare(newCounter); +} +exports.compareTopologyVersion = compareTopologyVersion; +//# sourceMappingURL=server_description.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_description.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_description.js.map new file mode 100644 index 000000000..d53cef710 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_description.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection.js new file mode 100644 index 000000000..c8904f729 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection.js @@ -0,0 +1,234 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.readPreferenceServerSelector = exports.secondaryWritableServerSelector = exports.sameServerSelector = exports.writableServerSelector = exports.MIN_SECONDARY_WRITE_WIRE_VERSION = void 0; +const error_1 = require("../error"); +const read_preference_1 = require("../read_preference"); +const common_1 = require("./common"); +// max staleness constants +const IDLE_WRITE_PERIOD = 10000; +const SMALLEST_MAX_STALENESS_SECONDS = 90; +// Minimum version to try writes on secondaries. +exports.MIN_SECONDARY_WRITE_WIRE_VERSION = 13; +/** + * Returns a server selector that selects for writable servers + */ +function writableServerSelector() { + return function writableServer(topologyDescription, servers) { + return latencyWindowReducer(topologyDescription, servers.filter((s) => s.isWritable)); + }; +} +exports.writableServerSelector = writableServerSelector; +/** + * The purpose of this selector is to select the same server, only + * if it is in a state that it can have commands sent to it. + */ +function sameServerSelector(description) { + return function sameServerSelector(topologyDescription, servers) { + if (!description) + return []; + // Filter the servers to match the provided description only if + // the type is not unknown. + return servers.filter(sd => { + return sd.address === description.address && sd.type !== common_1.ServerType.Unknown; + }); + }; +} +exports.sameServerSelector = sameServerSelector; +/** + * Returns a server selector that uses a read preference to select a + * server potentially for a write on a secondary. + */ +function secondaryWritableServerSelector(wireVersion, readPreference) { + // If server version < 5.0, read preference always primary. + // If server version >= 5.0... + // - If read preference is supplied, use that. + // - If no read preference is supplied, use primary. + if (!readPreference || + !wireVersion || + (wireVersion && wireVersion < exports.MIN_SECONDARY_WRITE_WIRE_VERSION)) { + return readPreferenceServerSelector(read_preference_1.ReadPreference.primary); + } + return readPreferenceServerSelector(readPreference); +} +exports.secondaryWritableServerSelector = secondaryWritableServerSelector; +/** + * Reduces the passed in array of servers by the rules of the "Max Staleness" specification + * found here: https://github.com/mongodb/specifications/blob/master/source/max-staleness/max-staleness.rst + * + * @param readPreference - The read preference providing max staleness guidance + * @param topologyDescription - The topology description + * @param servers - The list of server descriptions to be reduced + * @returns The list of servers that satisfy the requirements of max staleness + */ +function maxStalenessReducer(readPreference, topologyDescription, servers) { + if (readPreference.maxStalenessSeconds == null || readPreference.maxStalenessSeconds < 0) { + return servers; + } + const maxStaleness = readPreference.maxStalenessSeconds; + const maxStalenessVariance = (topologyDescription.heartbeatFrequencyMS + IDLE_WRITE_PERIOD) / 1000; + if (maxStaleness < maxStalenessVariance) { + throw new error_1.MongoInvalidArgumentError(`Option "maxStalenessSeconds" must be at least ${maxStalenessVariance} seconds`); + } + if (maxStaleness < SMALLEST_MAX_STALENESS_SECONDS) { + throw new error_1.MongoInvalidArgumentError(`Option "maxStalenessSeconds" must be at least ${SMALLEST_MAX_STALENESS_SECONDS} seconds`); + } + if (topologyDescription.type === common_1.TopologyType.ReplicaSetWithPrimary) { + const primary = Array.from(topologyDescription.servers.values()).filter(primaryFilter)[0]; + return servers.reduce((result, server) => { + const stalenessMS = server.lastUpdateTime - + server.lastWriteDate - + (primary.lastUpdateTime - primary.lastWriteDate) + + topologyDescription.heartbeatFrequencyMS; + const staleness = stalenessMS / 1000; + const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0; + if (staleness <= maxStalenessSeconds) { + result.push(server); + } + return result; + }, []); + } + if (topologyDescription.type === common_1.TopologyType.ReplicaSetNoPrimary) { + if (servers.length === 0) { + return servers; + } + const sMax = servers.reduce((max, s) => s.lastWriteDate > max.lastWriteDate ? s : max); + return servers.reduce((result, server) => { + const stalenessMS = sMax.lastWriteDate - server.lastWriteDate + topologyDescription.heartbeatFrequencyMS; + const staleness = stalenessMS / 1000; + const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0; + if (staleness <= maxStalenessSeconds) { + result.push(server); + } + return result; + }, []); + } + return servers; +} +/** + * Determines whether a server's tags match a given set of tags + * + * @param tagSet - The requested tag set to match + * @param serverTags - The server's tags + */ +function tagSetMatch(tagSet, serverTags) { + const keys = Object.keys(tagSet); + const serverTagKeys = Object.keys(serverTags); + for (let i = 0; i < keys.length; ++i) { + const key = keys[i]; + if (serverTagKeys.indexOf(key) === -1 || serverTags[key] !== tagSet[key]) { + return false; + } + } + return true; +} +/** + * Reduces a set of server descriptions based on tags requested by the read preference + * + * @param readPreference - The read preference providing the requested tags + * @param servers - The list of server descriptions to reduce + * @returns The list of servers matching the requested tags + */ +function tagSetReducer(readPreference, servers) { + if (readPreference.tags == null || + (Array.isArray(readPreference.tags) && readPreference.tags.length === 0)) { + return servers; + } + for (let i = 0; i < readPreference.tags.length; ++i) { + const tagSet = readPreference.tags[i]; + const serversMatchingTagset = servers.reduce((matched, server) => { + if (tagSetMatch(tagSet, server.tags)) + matched.push(server); + return matched; + }, []); + if (serversMatchingTagset.length) { + return serversMatchingTagset; + } + } + return []; +} +/** + * Reduces a list of servers to ensure they fall within an acceptable latency window. This is + * further specified in the "Server Selection" specification, found here: + * https://github.com/mongodb/specifications/blob/master/source/server-selection/server-selection.rst + * + * @param topologyDescription - The topology description + * @param servers - The list of servers to reduce + * @returns The servers which fall within an acceptable latency window + */ +function latencyWindowReducer(topologyDescription, servers) { + const low = servers.reduce((min, server) => Math.min(server.roundTripTime, min), Infinity); + const high = low + topologyDescription.localThresholdMS; + return servers.reduce((result, server) => { + if (server.roundTripTime <= high && server.roundTripTime >= low) + result.push(server); + return result; + }, []); +} +// filters +function primaryFilter(server) { + return server.type === common_1.ServerType.RSPrimary; +} +function secondaryFilter(server) { + return server.type === common_1.ServerType.RSSecondary; +} +function nearestFilter(server) { + return server.type === common_1.ServerType.RSSecondary || server.type === common_1.ServerType.RSPrimary; +} +function knownFilter(server) { + return server.type !== common_1.ServerType.Unknown; +} +function loadBalancerFilter(server) { + return server.type === common_1.ServerType.LoadBalancer; +} +/** + * Returns a function which selects servers based on a provided read preference + * + * @param readPreference - The read preference to select with + */ +function readPreferenceServerSelector(readPreference) { + if (!readPreference.isValid()) { + throw new error_1.MongoInvalidArgumentError('Invalid read preference specified'); + } + return function readPreferenceServers(topologyDescription, servers, deprioritized = []) { + const commonWireVersion = topologyDescription.commonWireVersion; + if (commonWireVersion && + readPreference.minWireVersion && + readPreference.minWireVersion > commonWireVersion) { + throw new error_1.MongoCompatibilityError(`Minimum wire version '${readPreference.minWireVersion}' required, but found '${commonWireVersion}'`); + } + if (topologyDescription.type === common_1.TopologyType.LoadBalanced) { + return servers.filter(loadBalancerFilter); + } + if (topologyDescription.type === common_1.TopologyType.Unknown) { + return []; + } + if (topologyDescription.type === common_1.TopologyType.Single) { + return latencyWindowReducer(topologyDescription, servers.filter(knownFilter)); + } + if (topologyDescription.type === common_1.TopologyType.Sharded) { + const filtered = servers.filter(server => { + return !deprioritized.includes(server); + }); + const selectable = filtered.length > 0 ? filtered : deprioritized; + return latencyWindowReducer(topologyDescription, selectable.filter(knownFilter)); + } + const mode = readPreference.mode; + if (mode === read_preference_1.ReadPreference.PRIMARY) { + return servers.filter(primaryFilter); + } + if (mode === read_preference_1.ReadPreference.PRIMARY_PREFERRED) { + const result = servers.filter(primaryFilter); + if (result.length) { + return result; + } + } + const filter = mode === read_preference_1.ReadPreference.NEAREST ? nearestFilter : secondaryFilter; + const selectedServers = latencyWindowReducer(topologyDescription, tagSetReducer(readPreference, maxStalenessReducer(readPreference, topologyDescription, servers.filter(filter)))); + if (mode === read_preference_1.ReadPreference.SECONDARY_PREFERRED && selectedServers.length === 0) { + return servers.filter(primaryFilter); + } + return selectedServers; + }; +} +exports.readPreferenceServerSelector = readPreferenceServerSelector; +//# sourceMappingURL=server_selection.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection.js.map new file mode 100644 index 000000000..e4762a516 --- /dev/null +++ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection_events.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection_events.js new file mode 100644 index 000000000..20bc95b0d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection_events.js @@ -0,0 +1,85 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.WaitingForSuitableServerEvent = exports.ServerSelectionSucceededEvent = exports.ServerSelectionFailedEvent = exports.ServerSelectionStartedEvent = exports.ServerSelectionEvent = void 0; +const utils_1 = require(".././utils"); +const constants_1 = require("../constants"); +/** + * The base export class for all logs published from server selection + * @internal + * @category Log Type + */ +class ServerSelectionEvent { + /** @internal */ + constructor(selector, topologyDescription, operation) { + this.selector = selector; + this.operation = operation; + this.topologyDescription = topologyDescription; + } +} +exports.ServerSelectionEvent = ServerSelectionEvent; +/** + * An event published when server selection starts + * @internal + * @category Event + */ +class ServerSelectionStartedEvent extends ServerSelectionEvent { + /** @internal */ + constructor(selector, topologyDescription, operation) { + super(selector, topologyDescription, operation); + /** @internal */ + this.name = constants_1.SERVER_SELECTION_STARTED; + this.message = 'Server selection started'; + } +} +exports.ServerSelectionStartedEvent = ServerSelectionStartedEvent; +/** + * An event published when a server selection fails + * @internal + * @category Event + */ +class ServerSelectionFailedEvent extends ServerSelectionEvent { + /** @internal */ + constructor(selector, topologyDescription, error, operation) { + super(selector, topologyDescription, operation); + /** @internal */ + this.name = constants_1.SERVER_SELECTION_FAILED; + this.message = 'Server selection failed'; + this.failure = error; + } +} +exports.ServerSelectionFailedEvent = ServerSelectionFailedEvent; +/** + * An event published when server selection succeeds + * @internal + * @category Event + */ +class ServerSelectionSucceededEvent extends ServerSelectionEvent { + /** @internal */ + constructor(selector, topologyDescription, address, operation) { + super(selector, topologyDescription, operation); + /** @internal */ + this.name = constants_1.SERVER_SELECTION_SUCCEEDED; + this.message = 'Server selection succeeded'; + const { host, port } = utils_1.HostAddress.fromString(address).toHostPort(); + this.serverHost = host; + this.serverPort = port; + } +} +exports.ServerSelectionSucceededEvent = ServerSelectionSucceededEvent; +/** + * An event published when server selection is waiting for a suitable server to become available + * @internal + * @category Event + */ +class WaitingForSuitableServerEvent extends ServerSelectionEvent { + /** @internal */ + constructor(selector, topologyDescription, remainingTimeMS, operation) { + super(selector, topologyDescription, operation); + /** @internal */ + this.name = constants_1.WAITING_FOR_SUITABLE_SERVER; + this.message = 'Waiting for suitable server to become available'; + this.remainingTimeMS = remainingTimeMS; + } +} +exports.WaitingForSuitableServerEvent = WaitingForSuitableServerEvent; +//# sourceMappingURL=server_selection_events.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection_events.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection_events.js.map new file mode 100644 index 000000000..b6c719ed5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/server_selection_events.js.map @@ -0,0 +1 @@ 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extends mongo_types_1.TypedEventEmitter { + constructor(options) { + super(); + if (!options || !options.srvHost) { + throw new error_1.MongoRuntimeError('Options for SrvPoller must exist and include srvHost'); + } + this.srvHost = options.srvHost; + this.srvMaxHosts = options.srvMaxHosts ?? 0; + this.srvServiceName = options.srvServiceName ?? 'mongodb'; + this.rescanSrvIntervalMS = 60000; + this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 10000; + this.haMode = false; + this.generation = 0; + this._timeout = undefined; + } + get srvAddress() { + return `_${this.srvServiceName}._tcp.${this.srvHost}`; + } + get intervalMS() { + return this.haMode ? this.heartbeatFrequencyMS : this.rescanSrvIntervalMS; + } + start() { + if (!this._timeout) { + this.schedule(); + } + } + stop() { + if (this._timeout) { + (0, timers_1.clearTimeout)(this._timeout); + this.generation += 1; + this._timeout = undefined; + } + } + // TODO(NODE-4994): implement new logging logic for SrvPoller failures + schedule() { + if (this._timeout) { + (0, timers_1.clearTimeout)(this._timeout); + } + this._timeout = (0, timers_1.setTimeout)(() => { + // eslint-disable-next-line github/no-then + this._poll().then(undefined, utils_1.squashError); + }, this.intervalMS); + } + success(srvRecords) { + this.haMode = false; + this.schedule(); + this.emit(SrvPoller.SRV_RECORD_DISCOVERY, new SrvPollingEvent(srvRecords)); + } + failure() { + this.haMode = true; + this.schedule(); + } + async _poll() { + const generation = this.generation; + let srvRecords; + try { + srvRecords = await dns.promises.resolveSrv(this.srvAddress); + } + catch (dnsError) { + this.failure(); + return; + } + if (generation !== this.generation) { + return; + } + const finalAddresses = []; + for (const record of srvRecords) { + if ((0, utils_1.matchesParentDomain)(record.name, this.srvHost)) { + finalAddresses.push(record); + } + } + if (!finalAddresses.length) { + this.failure(); + return; + } + this.success(finalAddresses); + } +} +/** @event */ +SrvPoller.SRV_RECORD_DISCOVERY = 'srvRecordDiscovery'; +exports.SrvPoller = SrvPoller; +//# sourceMappingURL=srv_polling.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/srv_polling.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/srv_polling.js.map new file mode 100644 index 000000000..84d67bdb9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/srv_polling.js.map @@ -0,0 +1 @@ +{"version":3,"file":"srv_polling.js","sourceRoot":"","sources":["../../src/sdam/srv_polling.ts"],"names":[],"mappings":";;;AAAA,2BAA2B;AAC3B,mCAAkD;AAElD,oCAA6C;AAC7C,gDAAmD;AACnD,oCAAyE;AAEzE;;;GAGG;AACH,MAAa,eAAe;IAE1B,YAAY,UAA2B;QACrC,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC;IAC/B,CAAC;IAED,SAAS;QACP,OAAO,IAAI,GAAG,CAAC,IAAI,CAAC,UAAU,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,mBAAW,CAAC,aAAa,CAAC,CAAC,CAAC,CAAC,QAAQ,EAAE,CAAC,CAAC,CAAC;IACpF,CAAC;CACF;AATD,0CASC;AAeD,gBAAgB;AAChB,MAAa,SAAU,SAAQ,+BAAkC;IAa/D,YAAY,OAAyB;QACnC,KAAK,EAAE,CAAC;QAER,IAAI,CAAC,OAAO,IAAI,CAAC,OAAO,CAAC,OAAO,EAAE;YAChC,MAAM,IAAI,yBAAiB,CAAC,sDAAsD,CAAC,CAAC;SACrF;QAED,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC,OAAO,CAAC;QAC/B,IAAI,CAAC,WAAW,GAAG,OAAO,CAAC,WAAW,IAAI,CAAC,CAAC;QAC5C,IAAI,CAAC,cAAc,GAAG,OAAO,CAAC,cAAc,IAAI,SAAS,CAAC;QAC1D,IAAI,CAAC,mBAAmB,GAAG,KAAK,CAAC;QACjC,IAAI,CAAC,oBAAoB,GAAG,OAAO,CAAC,oBAAoB,IAAI,KAAK,CAAC;QAElE,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC;QACpB,IAAI,CAAC,UAAU,GAAG,CAAC,CAAC;QAEpB,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;IAC5B,CAAC;IAED,IAAI,UAAU;QACZ,OAAO,IAAI,IAAI,CAAC,cAAc,SAAS,IAAI,CAAC,OAAO,EAAE,CAAC;IACxD,CAAC;IAED,IAAI,UAAU;QACZ,OAAO,IAAI,CAAC,MAAM,CAAC,CAAC,CAAC,IAAI,CAAC,oBAAoB,CAAC,CAAC,CAAC,IAAI,CAAC,mBAAmB,CAAC;IAC5E,CAAC;IAED,KAAK;QACH,IAAI,CAAC,IAAI,CAAC,QAAQ,EAAE;YAClB,IAAI,CAAC,QAAQ,EAAE,CAAC;SACjB;IACH,CAAC;IAED,IAAI;QACF,IAAI,IAAI,CAAC,QAAQ,EAAE;YACjB,IAAA,qBAAY,EAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;YAC5B,IAAI,CAAC,UAAU,IAAI,CAAC,CAAC;YACrB,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;SAC3B;IACH,CAAC;IAED,sEAAsE;IACtE,QAAQ;QACN,IAAI,IAAI,CAAC,QAAQ,EAAE;YACjB,IAAA,qBAAY,EAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;SAC7B;QAED,IAAI,CAAC,QAAQ,GAAG,IAAA,mBAAU,EAAC,GAAG,EAAE;YAC9B,0CAA0C;YAC1C,IAAI,CAAC,KAAK,EAAE,CAAC,IAAI,CAAC,SAAS,EAAE,mBAAW,CAAC,CAAC;QAC5C,CAAC,EAAE,IAAI,CAAC,UAAU,CAAC,CAAC;IACtB,CAAC;IAED,OAAO,CAAC,UAA2B;QACjC,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC;QACpB,IAAI,CAAC,QAAQ,EAAE,CAAC;QAChB,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,oBAAoB,EAAE,IAAI,eAAe,CAAC,UAAU,CAAC,CAAC,CAAC;IAC7E,CAAC;IAED,OAAO;QACL,IAAI,CAAC,MAAM,GAAG,IAAI,CAAC;QACnB,IAAI,CAAC,QAAQ,EAAE,CAAC;IAClB,CAAC;IAED,KAAK,CAAC,KAAK;QACT,MAAM,UAAU,GAAG,IAAI,CAAC,UAAU,CAAC;QACnC,IAAI,UAAU,CAAC;QAEf,IAAI;YACF,UAAU,GAAG,MAAM,GAAG,CAAC,QAAQ,CAAC,UAAU,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;SAC7D;QAAC,OAAO,QAAQ,EAAE;YACjB,IAAI,CAAC,OAAO,EAAE,CAAC;YACf,OAAO;SACR;QAED,IAAI,UAAU,KAAK,IAAI,CAAC,UAAU,EAAE;YAClC,OAAO;SACR;QAED,MAAM,cAAc,GAAoB,EAAE,CAAC;QAC3C,KAAK,MAAM,MAAM,IAAI,UAAU,EAAE;YAC/B,IAAI,IAAA,2BAAmB,EAAC,MAAM,CAAC,IAAI,EAAE,IAAI,CAAC,OAAO,CAAC,EAAE;gBAClD,cAAc,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;aAC7B;SACF;QAED,IAAI,CAAC,cAAc,CAAC,MAAM,EAAE;YAC1B,IAAI,CAAC,OAAO,EAAE,CAAC;YACf,OAAO;SACR;QAED,IAAI,CAAC,OAAO,CAAC,cAAc,CAAC,CAAC;IAC/B,CAAC;;AA/FD,aAAa;AACG,8BAAoB,GAAG,oBAA6B,CAAC;AAX1D,8BAAS"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology.js new file mode 100644 index 000000000..e5559f52e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology.js @@ -0,0 +1,660 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.ServerCapabilities = exports.Topology = void 0; +const connection_string_1 = require("../connection_string"); +const constants_1 = require("../constants"); +const error_1 = require("../error"); +const mongo_logger_1 = require("../mongo_logger"); +const mongo_types_1 = require("../mongo_types"); +const read_preference_1 = require("../read_preference"); +const timeout_1 = require("../timeout"); +const utils_1 = require("../utils"); +const common_1 = require("./common"); +const events_1 = require("./events"); +const server_1 = require("./server"); +const server_description_1 = require("./server_description"); +const server_selection_1 = require("./server_selection"); +const server_selection_events_1 = require("./server_selection_events"); +const srv_polling_1 = require("./srv_polling"); +const topology_description_1 = require("./topology_description"); +// Global state +let globalTopologyCounter = 0; +const stateTransition = (0, utils_1.makeStateMachine)({ + [common_1.STATE_CLOSED]: [common_1.STATE_CLOSED, common_1.STATE_CONNECTING], + [common_1.STATE_CONNECTING]: [common_1.STATE_CONNECTING, common_1.STATE_CLOSING, common_1.STATE_CONNECTED, common_1.STATE_CLOSED], + [common_1.STATE_CONNECTED]: [common_1.STATE_CONNECTED, common_1.STATE_CLOSING, common_1.STATE_CLOSED], + [common_1.STATE_CLOSING]: [common_1.STATE_CLOSING, common_1.STATE_CLOSED] +}); +/** @internal */ +const kCancelled = Symbol('cancelled'); +/** @internal */ +const kWaitQueue = Symbol('waitQueue'); +/** + * A container of server instances representing a connection to a MongoDB topology. + * @internal + */ +class Topology extends mongo_types_1.TypedEventEmitter { + /** + * @param seedlist - a list of HostAddress instances to connect to + */ + constructor(client, seeds, options) { + super(); + this.client = client; + // Options should only be undefined in tests, MongoClient will always have defined options + options = options ?? { + hosts: [utils_1.HostAddress.fromString('localhost:27017')], + ...Object.fromEntries(connection_string_1.DEFAULT_OPTIONS.entries()), + ...Object.fromEntries(connection_string_1.FEATURE_FLAGS.entries()) + }; + if (typeof seeds === 'string') { + seeds = [utils_1.HostAddress.fromString(seeds)]; + } + else if (!Array.isArray(seeds)) { + seeds = [seeds]; + } + const seedlist = []; + for (const seed of seeds) { + if (typeof seed === 'string') { + seedlist.push(utils_1.HostAddress.fromString(seed)); + } + else if (seed instanceof utils_1.HostAddress) { + seedlist.push(seed); + } + else { + // FIXME(NODE-3483): May need to be a MongoParseError + throw new error_1.MongoRuntimeError(`Topology cannot be constructed from ${JSON.stringify(seed)}`); + } + } + const topologyType = topologyTypeFromOptions(options); + const topologyId = globalTopologyCounter++; + const selectedHosts = options.srvMaxHosts == null || + options.srvMaxHosts === 0 || + options.srvMaxHosts >= seedlist.length + ? seedlist + : (0, utils_1.shuffle)(seedlist, options.srvMaxHosts); + const serverDescriptions = new Map(); + for (const hostAddress of selectedHosts) { + serverDescriptions.set(hostAddress.toString(), new server_description_1.ServerDescription(hostAddress)); + } + this[kWaitQueue] = new utils_1.List(); + this.s = { + // the id of this topology + id: topologyId, + // passed in options + options, + // initial seedlist of servers to connect to + seedlist, + // initial state + state: common_1.STATE_CLOSED, + // the topology description + description: new topology_description_1.TopologyDescription(topologyType, serverDescriptions, options.replicaSet, undefined, undefined, undefined, options), + serverSelectionTimeoutMS: options.serverSelectionTimeoutMS, + heartbeatFrequencyMS: options.heartbeatFrequencyMS, + minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS, + // a map of server instances to normalized addresses + servers: new Map(), + credentials: options?.credentials, + clusterTime: undefined, + // timer management + connectionTimers: new Set(), + detectShardedTopology: ev => this.detectShardedTopology(ev), + detectSrvRecords: ev => this.detectSrvRecords(ev) + }; + this.mongoLogger = client.mongoLogger; + this.component = 'topology'; + if (options.srvHost && !options.loadBalanced) { + this.s.srvPoller = + options.srvPoller ?? + new srv_polling_1.SrvPoller({ + heartbeatFrequencyMS: this.s.heartbeatFrequencyMS, + srvHost: options.srvHost, + srvMaxHosts: options.srvMaxHosts, + srvServiceName: options.srvServiceName + }); + this.on(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology); + } + this.connectionLock = undefined; + } + detectShardedTopology(event) { + const previousType = event.previousDescription.type; + const newType = event.newDescription.type; + const transitionToSharded = previousType !== common_1.TopologyType.Sharded && newType === common_1.TopologyType.Sharded; + const srvListeners = this.s.srvPoller?.listeners(srv_polling_1.SrvPoller.SRV_RECORD_DISCOVERY); + const listeningToSrvPolling = !!srvListeners?.includes(this.s.detectSrvRecords); + if (transitionToSharded && !listeningToSrvPolling) { + this.s.srvPoller?.on(srv_polling_1.SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords); + this.s.srvPoller?.start(); + } + } + detectSrvRecords(ev) { + const previousTopologyDescription = this.s.description; + this.s.description = this.s.description.updateFromSrvPollingEvent(ev, this.s.options.srvMaxHosts); + if (this.s.description === previousTopologyDescription) { + // Nothing changed, so return + return; + } + updateServers(this); + this.emitAndLog(Topology.TOPOLOGY_DESCRIPTION_CHANGED, new events_1.TopologyDescriptionChangedEvent(this.s.id, previousTopologyDescription, this.s.description)); + } + /** + * @returns A `TopologyDescription` for this topology + */ + get description() { + return this.s.description; + } + get loadBalanced() { + return this.s.options.loadBalanced; + } + get serverApi() { + return this.s.options.serverApi; + } + get capabilities() { + return new ServerCapabilities(this.lastHello()); + } + /** Initiate server connect */ + async connect(options) { + this.connectionLock ??= this._connect(options); + try { + await this.connectionLock; + return this; + } + finally { + this.connectionLock = undefined; + } + return this; + } + async _connect(options) { + options = options ?? {}; + if (this.s.state === common_1.STATE_CONNECTED) { + return this; + } + stateTransition(this, common_1.STATE_CONNECTING); + // emit SDAM monitoring events + this.emitAndLog(Topology.TOPOLOGY_OPENING, new events_1.TopologyOpeningEvent(this.s.id)); + // emit an event for the topology change + this.emitAndLog(Topology.TOPOLOGY_DESCRIPTION_CHANGED, new events_1.TopologyDescriptionChangedEvent(this.s.id, new topology_description_1.TopologyDescription(common_1.TopologyType.Unknown), // initial is always Unknown + this.s.description)); + // connect all known servers, then attempt server selection to connect + const serverDescriptions = Array.from(this.s.description.servers.values()); + this.s.servers = new Map(serverDescriptions.map(serverDescription => [ + serverDescription.address, + createAndConnectServer(this, serverDescription) + ])); + // In load balancer mode we need to fake a server description getting + // emitted from the monitor, since the monitor doesn't exist. + if (this.s.options.loadBalanced) { + for (const description of serverDescriptions) { + const newDescription = new server_description_1.ServerDescription(description.hostAddress, undefined, { + loadBalanced: this.s.options.loadBalanced + }); + this.serverUpdateHandler(newDescription); + } + } + const readPreference = options.readPreference ?? read_preference_1.ReadPreference.primary; + const selectServerOptions = { operationName: 'ping', ...options }; + try { + const server = await this.selectServer((0, server_selection_1.readPreferenceServerSelector)(readPreference), selectServerOptions); + const skipPingOnConnect = this.s.options[Symbol.for('@@mdb.skipPingOnConnect')] === true; + if (!skipPingOnConnect && server && this.s.credentials) { + await server.command((0, utils_1.ns)('admin.$cmd'), { ping: 1 }, {}); + stateTransition(this, common_1.STATE_CONNECTED); + this.emit(Topology.OPEN, this); + this.emit(Topology.CONNECT, this); + return this; + } + stateTransition(this, common_1.STATE_CONNECTED); + this.emit(Topology.OPEN, this); + this.emit(Topology.CONNECT, this); + return this; + } + catch (error) { + this.close(); + throw error; + } + } + /** Close this topology */ + close() { + if (this.s.state === common_1.STATE_CLOSED || this.s.state === common_1.STATE_CLOSING) { + return; + } + for (const server of this.s.servers.values()) { + destroyServer(server, this); + } + this.s.servers.clear(); + stateTransition(this, common_1.STATE_CLOSING); + drainWaitQueue(this[kWaitQueue], new error_1.MongoTopologyClosedError()); + (0, common_1.drainTimerQueue)(this.s.connectionTimers); + if (this.s.srvPoller) { + this.s.srvPoller.stop(); + this.s.srvPoller.removeListener(srv_polling_1.SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords); + } + this.removeListener(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology); + stateTransition(this, common_1.STATE_CLOSED); + // emit an event for close + this.emitAndLog(Topology.TOPOLOGY_CLOSED, new events_1.TopologyClosedEvent(this.s.id)); + } + /** + * Selects a server according to the selection predicate provided + * + * @param selector - An optional selector to select servers by, defaults to a random selection within a latency window + * @param options - Optional settings related to server selection + * @param callback - The callback used to indicate success or failure + * @returns An instance of a `Server` meeting the criteria of the predicate provided + */ + async selectServer(selector, options) { + let serverSelector; + if (typeof selector !== 'function') { + if (typeof selector === 'string') { + serverSelector = (0, server_selection_1.readPreferenceServerSelector)(read_preference_1.ReadPreference.fromString(selector)); + } + else { + let readPreference; + if (selector instanceof read_preference_1.ReadPreference) { + readPreference = selector; + } + else { + read_preference_1.ReadPreference.translate(options); + readPreference = options.readPreference || read_preference_1.ReadPreference.primary; + } + serverSelector = (0, server_selection_1.readPreferenceServerSelector)(readPreference); + } + } + else { + serverSelector = selector; + } + options = { serverSelectionTimeoutMS: this.s.serverSelectionTimeoutMS, ...options }; + if (this.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + this.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionStartedEvent(selector, this.description, options.operationName)); + } + const isSharded = this.description.type === common_1.TopologyType.Sharded; + const session = options.session; + const transaction = session && session.transaction; + if (isSharded && transaction && transaction.server) { + if (this.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + this.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionSucceededEvent(selector, this.description, transaction.server.pool.address, options.operationName)); + } + return transaction.server; + } + const { promise: serverPromise, resolve, reject } = (0, utils_1.promiseWithResolvers)(); + const timeout = timeout_1.Timeout.expires(options.serverSelectionTimeoutMS ?? 0); + const waitQueueMember = { + serverSelector, + topologyDescription: this.description, + mongoLogger: this.client.mongoLogger, + transaction, + resolve, + reject, + timeout, + startTime: (0, utils_1.now)(), + operationName: options.operationName, + waitingLogged: false, + previousServer: options.previousServer + }; + this[kWaitQueue].push(waitQueueMember); + processWaitQueue(this); + try { + return await Promise.race([serverPromise, waitQueueMember.timeout]); + } + catch (error) { + if (timeout_1.TimeoutError.is(error)) { + // Timeout + waitQueueMember[kCancelled] = true; + timeout.clear(); + const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${options.serverSelectionTimeoutMS} ms`, this.description); + if (this.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + this.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(selector, this.description, timeoutError, options.operationName)); + } + throw timeoutError; + } + // Other server selection error + throw error; + } + } + /** + * Update the internal TopologyDescription with a ServerDescription + * + * @param serverDescription - The server to update in the internal list of server descriptions + */ + serverUpdateHandler(serverDescription) { + if (!this.s.description.hasServer(serverDescription.address)) { + return; + } + // ignore this server update if its from an outdated topologyVersion + if (isStaleServerDescription(this.s.description, serverDescription)) { + return; + } + // these will be used for monitoring events later + const previousTopologyDescription = this.s.description; + const previousServerDescription = this.s.description.servers.get(serverDescription.address); + if (!previousServerDescription) { + return; + } + // Driver Sessions Spec: "Whenever a driver receives a cluster time from + // a server it MUST compare it to the current highest seen cluster time + // for the deployment. If the new cluster time is higher than the + // highest seen cluster time it MUST become the new highest seen cluster + // time. Two cluster times are compared using only the BsonTimestamp + // value of the clusterTime embedded field." + const clusterTime = serverDescription.$clusterTime; + if (clusterTime) { + (0, common_1._advanceClusterTime)(this, clusterTime); + } + // If we already know all the information contained in this updated description, then + // we don't need to emit SDAM events, but still need to update the description, in order + // to keep client-tracked attributes like last update time and round trip time up to date + const equalDescriptions = previousServerDescription && previousServerDescription.equals(serverDescription); + // first update the TopologyDescription + this.s.description = this.s.description.update(serverDescription); + if (this.s.description.compatibilityError) { + this.emit(Topology.ERROR, new error_1.MongoCompatibilityError(this.s.description.compatibilityError)); + return; + } + // emit monitoring events for this change + if (!equalDescriptions) { + const newDescription = this.s.description.servers.get(serverDescription.address); + if (newDescription) { + this.emit(Topology.SERVER_DESCRIPTION_CHANGED, new events_1.ServerDescriptionChangedEvent(this.s.id, serverDescription.address, previousServerDescription, newDescription)); + } + } + // update server list from updated descriptions + updateServers(this, serverDescription); + // attempt to resolve any outstanding server selection attempts + if (this[kWaitQueue].length > 0) { + processWaitQueue(this); + } + if (!equalDescriptions) { + this.emitAndLog(Topology.TOPOLOGY_DESCRIPTION_CHANGED, new events_1.TopologyDescriptionChangedEvent(this.s.id, previousTopologyDescription, this.s.description)); + } + } + auth(credentials, callback) { + if (typeof credentials === 'function') + (callback = credentials), (credentials = undefined); + if (typeof callback === 'function') + callback(undefined, true); + } + get clientMetadata() { + return this.s.options.metadata; + } + isConnected() { + return this.s.state === common_1.STATE_CONNECTED; + } + isDestroyed() { + return this.s.state === common_1.STATE_CLOSED; + } + // NOTE: There are many places in code where we explicitly check the last hello + // to do feature support detection. This should be done any other way, but for + // now we will just return the first hello seen, which should suffice. + lastHello() { + const serverDescriptions = Array.from(this.description.servers.values()); + if (serverDescriptions.length === 0) + return {}; + const sd = serverDescriptions.filter((sd) => sd.type !== common_1.ServerType.Unknown)[0]; + const result = sd || { maxWireVersion: this.description.commonWireVersion }; + return result; + } + get commonWireVersion() { + return this.description.commonWireVersion; + } + get logicalSessionTimeoutMinutes() { + return this.description.logicalSessionTimeoutMinutes; + } + get clusterTime() { + return this.s.clusterTime; + } + set clusterTime(clusterTime) { + this.s.clusterTime = clusterTime; + } +} +/** @event */ +Topology.SERVER_OPENING = constants_1.SERVER_OPENING; +/** @event */ +Topology.SERVER_CLOSED = constants_1.SERVER_CLOSED; +/** @event */ +Topology.SERVER_DESCRIPTION_CHANGED = constants_1.SERVER_DESCRIPTION_CHANGED; +/** @event */ +Topology.TOPOLOGY_OPENING = constants_1.TOPOLOGY_OPENING; +/** @event */ +Topology.TOPOLOGY_CLOSED = constants_1.TOPOLOGY_CLOSED; +/** @event */ +Topology.TOPOLOGY_DESCRIPTION_CHANGED = constants_1.TOPOLOGY_DESCRIPTION_CHANGED; +/** @event */ +Topology.ERROR = constants_1.ERROR; +/** @event */ +Topology.OPEN = constants_1.OPEN; +/** @event */ +Topology.CONNECT = constants_1.CONNECT; +/** @event */ +Topology.CLOSE = constants_1.CLOSE; +/** @event */ +Topology.TIMEOUT = constants_1.TIMEOUT; +exports.Topology = Topology; +/** Destroys a server, and removes all event listeners from the instance */ +function destroyServer(server, topology) { + for (const event of constants_1.LOCAL_SERVER_EVENTS) { + server.removeAllListeners(event); + } + server.destroy(); + topology.emitAndLog(Topology.SERVER_CLOSED, new events_1.ServerClosedEvent(topology.s.id, server.description.address)); + for (const event of constants_1.SERVER_RELAY_EVENTS) { + server.removeAllListeners(event); + } +} +/** Predicts the TopologyType from options */ +function topologyTypeFromOptions(options) { + if (options?.directConnection) { + return common_1.TopologyType.Single; + } + if (options?.replicaSet) { + return common_1.TopologyType.ReplicaSetNoPrimary; + } + if (options?.loadBalanced) { + return common_1.TopologyType.LoadBalanced; + } + return common_1.TopologyType.Unknown; +} +/** + * Creates new server instances and attempts to connect them + * + * @param topology - The topology that this server belongs to + * @param serverDescription - The description for the server to initialize and connect to + */ +function createAndConnectServer(topology, serverDescription) { + topology.emitAndLog(Topology.SERVER_OPENING, new events_1.ServerOpeningEvent(topology.s.id, serverDescription.address)); + const server = new server_1.Server(topology, serverDescription, topology.s.options); + for (const event of constants_1.SERVER_RELAY_EVENTS) { + server.on(event, (e) => topology.emit(event, e)); + } + server.on(server_1.Server.DESCRIPTION_RECEIVED, description => topology.serverUpdateHandler(description)); + server.connect(); + return server; +} +/** + * @param topology - Topology to update. + * @param incomingServerDescription - New server description. + */ +function updateServers(topology, incomingServerDescription) { + // update the internal server's description + if (incomingServerDescription && topology.s.servers.has(incomingServerDescription.address)) { + const server = topology.s.servers.get(incomingServerDescription.address); + if (server) { + server.s.description = incomingServerDescription; + if (incomingServerDescription.error instanceof error_1.MongoError && + incomingServerDescription.error.hasErrorLabel(error_1.MongoErrorLabel.ResetPool)) { + const interruptInUseConnections = incomingServerDescription.error.hasErrorLabel(error_1.MongoErrorLabel.InterruptInUseConnections); + server.pool.clear({ interruptInUseConnections }); + } + else if (incomingServerDescription.error == null) { + const newTopologyType = topology.s.description.type; + const shouldMarkPoolReady = incomingServerDescription.isDataBearing || + (incomingServerDescription.type !== common_1.ServerType.Unknown && + newTopologyType === common_1.TopologyType.Single); + if (shouldMarkPoolReady) { + server.pool.ready(); + } + } + } + } + // add new servers for all descriptions we currently don't know about locally + for (const serverDescription of topology.description.servers.values()) { + if (!topology.s.servers.has(serverDescription.address)) { + const server = createAndConnectServer(topology, serverDescription); + topology.s.servers.set(serverDescription.address, server); + } + } + // for all servers no longer known, remove their descriptions and destroy their instances + for (const entry of topology.s.servers) { + const serverAddress = entry[0]; + if (topology.description.hasServer(serverAddress)) { + continue; + } + if (!topology.s.servers.has(serverAddress)) { + continue; + } + const server = topology.s.servers.get(serverAddress); + topology.s.servers.delete(serverAddress); + // prepare server for garbage collection + if (server) { + destroyServer(server, topology); + } + } +} +function drainWaitQueue(queue, drainError) { + while (queue.length) { + const waitQueueMember = queue.shift(); + if (!waitQueueMember) { + continue; + } + waitQueueMember.timeout.clear(); + if (!waitQueueMember[kCancelled]) { + if (waitQueueMember.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + waitQueueMember.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(waitQueueMember.serverSelector, waitQueueMember.topologyDescription, drainError, waitQueueMember.operationName)); + } + waitQueueMember.reject(drainError); + } + } +} +function processWaitQueue(topology) { + if (topology.s.state === common_1.STATE_CLOSED) { + drainWaitQueue(topology[kWaitQueue], new error_1.MongoTopologyClosedError()); + return; + } + const isSharded = topology.description.type === common_1.TopologyType.Sharded; + const serverDescriptions = Array.from(topology.description.servers.values()); + const membersToProcess = topology[kWaitQueue].length; + for (let i = 0; i < membersToProcess; ++i) { + const waitQueueMember = topology[kWaitQueue].shift(); + if (!waitQueueMember) { + continue; + } + if (waitQueueMember[kCancelled]) { + continue; + } + let selectedDescriptions; + try { + const serverSelector = waitQueueMember.serverSelector; + const previousServer = waitQueueMember.previousServer; + selectedDescriptions = serverSelector + ? serverSelector(topology.description, serverDescriptions, previousServer ? [previousServer] : []) + : serverDescriptions; + } + catch (selectorError) { + waitQueueMember.timeout.clear(); + if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + topology.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(waitQueueMember.serverSelector, topology.description, selectorError, waitQueueMember.operationName)); + } + waitQueueMember.reject(selectorError); + continue; + } + let selectedServer; + if (selectedDescriptions.length === 0) { + if (!waitQueueMember.waitingLogged) { + if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.INFORMATIONAL)) { + topology.client.mongoLogger?.info(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.WaitingForSuitableServerEvent(waitQueueMember.serverSelector, topology.description, topology.s.serverSelectionTimeoutMS !== 0 + ? topology.s.serverSelectionTimeoutMS - ((0, utils_1.now)() - waitQueueMember.startTime) + : -1, waitQueueMember.operationName)); + } + waitQueueMember.waitingLogged = true; + } + topology[kWaitQueue].push(waitQueueMember); + continue; + } + else if (selectedDescriptions.length === 1) { + selectedServer = topology.s.servers.get(selectedDescriptions[0].address); + } + else { + const descriptions = (0, utils_1.shuffle)(selectedDescriptions, 2); + const server1 = topology.s.servers.get(descriptions[0].address); + const server2 = topology.s.servers.get(descriptions[1].address); + selectedServer = + server1 && server2 && server1.s.operationCount < server2.s.operationCount + ? server1 + : server2; + } + if (!selectedServer) { + const serverSelectionError = new error_1.MongoServerSelectionError('server selection returned a server description but the server was not found in the topology', topology.description); + if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + topology.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionFailedEvent(waitQueueMember.serverSelector, topology.description, serverSelectionError, waitQueueMember.operationName)); + } + waitQueueMember.reject(serverSelectionError); + return; + } + const transaction = waitQueueMember.transaction; + if (isSharded && transaction && transaction.isActive && selectedServer) { + transaction.pinServer(selectedServer); + } + waitQueueMember.timeout.clear(); + if (topology.client.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, mongo_logger_1.SeverityLevel.DEBUG)) { + topology.client.mongoLogger?.debug(mongo_logger_1.MongoLoggableComponent.SERVER_SELECTION, new server_selection_events_1.ServerSelectionSucceededEvent(waitQueueMember.serverSelector, waitQueueMember.topologyDescription, selectedServer.pool.address, waitQueueMember.operationName)); + } + waitQueueMember.resolve(selectedServer); + } + if (topology[kWaitQueue].length > 0) { + // ensure all server monitors attempt monitoring soon + for (const [, server] of topology.s.servers) { + process.nextTick(function scheduleServerCheck() { + return server.requestCheck(); + }); + } + } +} +function isStaleServerDescription(topologyDescription, incomingServerDescription) { + const currentServerDescription = topologyDescription.servers.get(incomingServerDescription.address); + const currentTopologyVersion = currentServerDescription?.topologyVersion; + return ((0, server_description_1.compareTopologyVersion)(currentTopologyVersion, incomingServerDescription.topologyVersion) > 0); +} +/** @public */ +class ServerCapabilities { + constructor(hello) { + this.minWireVersion = hello.minWireVersion || 0; + this.maxWireVersion = hello.maxWireVersion || 0; + } + get hasAggregationCursor() { + return this.maxWireVersion >= 1; + } + get hasWriteCommands() { + return this.maxWireVersion >= 2; + } + get hasTextSearch() { + return this.minWireVersion >= 0; + } + get hasAuthCommands() { + return this.maxWireVersion >= 1; + } + get hasListCollectionsCommand() { + return this.maxWireVersion >= 3; + } + get hasListIndexesCommand() { + return this.maxWireVersion >= 3; + } + get supportsSnapshotReads() { + return this.maxWireVersion >= 13; + } + get commandsTakeWriteConcern() { + return this.maxWireVersion >= 5; + } + get commandsTakeCollation() { + return this.maxWireVersion >= 5; + } +} +exports.ServerCapabilities = ServerCapabilities; +//# sourceMappingURL=topology.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology.js.map new file mode 100644 index 000000000..3d6e539e0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology_description.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology_description.js new file mode 100644 index 000000000..41c0903a1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology_description.js @@ -0,0 +1,370 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.TopologyDescription = void 0; +const bson_1 = require("../bson"); +const WIRE_CONSTANTS = require("../cmap/wire_protocol/constants"); +const error_1 = require("../error"); +const utils_1 = require("../utils"); +const common_1 = require("./common"); +const server_description_1 = require("./server_description"); +// constants related to compatibility checks +const MIN_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_SERVER_VERSION; +const MAX_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_SERVER_VERSION; +const MIN_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_WIRE_VERSION; +const MAX_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_WIRE_VERSION; +const MONGOS_OR_UNKNOWN = new Set([common_1.ServerType.Mongos, common_1.ServerType.Unknown]); +const MONGOS_OR_STANDALONE = new Set([common_1.ServerType.Mongos, common_1.ServerType.Standalone]); +const NON_PRIMARY_RS_MEMBERS = new Set([ + common_1.ServerType.RSSecondary, + common_1.ServerType.RSArbiter, + common_1.ServerType.RSOther +]); +/** + * Representation of a deployment of servers + * @public + */ +class TopologyDescription { + /** + * Create a TopologyDescription + */ + constructor(topologyType, serverDescriptions = null, setName = null, maxSetVersion = null, maxElectionId = null, commonWireVersion = null, options = null) { + options = options ?? {}; + this.type = topologyType ?? common_1.TopologyType.Unknown; + this.servers = serverDescriptions ?? new Map(); + this.stale = false; + this.compatible = true; + this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 0; + this.localThresholdMS = options.localThresholdMS ?? 15; + this.setName = setName ?? null; + this.maxElectionId = maxElectionId ?? null; + this.maxSetVersion = maxSetVersion ?? null; + this.commonWireVersion = commonWireVersion ?? 0; + // determine server compatibility + for (const serverDescription of this.servers.values()) { + // Load balancer mode is always compatible. + if (serverDescription.type === common_1.ServerType.Unknown || + serverDescription.type === common_1.ServerType.LoadBalancer) { + continue; + } + if (serverDescription.minWireVersion > MAX_SUPPORTED_WIRE_VERSION) { + this.compatible = false; + this.compatibilityError = `Server at ${serverDescription.address} requires wire version ${serverDescription.minWireVersion}, but this version of the driver only supports up to ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`; + } + if (serverDescription.maxWireVersion < MIN_SUPPORTED_WIRE_VERSION) { + this.compatible = false; + this.compatibilityError = `Server at ${serverDescription.address} reports wire version ${serverDescription.maxWireVersion}, but this version of the driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION}).`; + break; + } + } + // Whenever a client updates the TopologyDescription from a hello response, it MUST set + // TopologyDescription.logicalSessionTimeoutMinutes to the smallest logicalSessionTimeoutMinutes + // value among ServerDescriptions of all data-bearing server types. If any have a null + // logicalSessionTimeoutMinutes, then TopologyDescription.logicalSessionTimeoutMinutes MUST be + // set to null. + this.logicalSessionTimeoutMinutes = null; + for (const [, server] of this.servers) { + if (server.isReadable) { + if (server.logicalSessionTimeoutMinutes == null) { + // If any of the servers have a null logicalSessionsTimeout, then the whole topology does + this.logicalSessionTimeoutMinutes = null; + break; + } + if (this.logicalSessionTimeoutMinutes == null) { + // First server with a non null logicalSessionsTimeout + this.logicalSessionTimeoutMinutes = server.logicalSessionTimeoutMinutes; + continue; + } + // Always select the smaller of the: + // current server logicalSessionsTimeout and the topologies logicalSessionsTimeout + this.logicalSessionTimeoutMinutes = Math.min(this.logicalSessionTimeoutMinutes, server.logicalSessionTimeoutMinutes); + } + } + } + /** + * Returns a new TopologyDescription based on the SrvPollingEvent + * @internal + */ + updateFromSrvPollingEvent(ev, srvMaxHosts = 0) { + /** The SRV addresses defines the set of addresses we should be using */ + const incomingHostnames = ev.hostnames(); + const currentHostnames = new Set(this.servers.keys()); + const hostnamesToAdd = new Set(incomingHostnames); + const hostnamesToRemove = new Set(); + for (const hostname of currentHostnames) { + // filter hostnamesToAdd (made from incomingHostnames) down to what is *not* present in currentHostnames + hostnamesToAdd.delete(hostname); + if (!incomingHostnames.has(hostname)) { + // If the SRV Records no longer include this hostname + // we have to stop using it + hostnamesToRemove.add(hostname); + } + } + if (hostnamesToAdd.size === 0 && hostnamesToRemove.size === 0) { + // No new hosts to add and none to remove + return this; + } + const serverDescriptions = new Map(this.servers); + for (const removedHost of hostnamesToRemove) { + serverDescriptions.delete(removedHost); + } + if (hostnamesToAdd.size > 0) { + if (srvMaxHosts === 0) { + // Add all! + for (const hostToAdd of hostnamesToAdd) { + serverDescriptions.set(hostToAdd, new server_description_1.ServerDescription(hostToAdd)); + } + } + else if (serverDescriptions.size < srvMaxHosts) { + // Add only the amount needed to get us back to srvMaxHosts + const selectedHosts = (0, utils_1.shuffle)(hostnamesToAdd, srvMaxHosts - serverDescriptions.size); + for (const selectedHostToAdd of selectedHosts) { + serverDescriptions.set(selectedHostToAdd, new server_description_1.ServerDescription(selectedHostToAdd)); + } + } + } + return new TopologyDescription(this.type, serverDescriptions, this.setName, this.maxSetVersion, this.maxElectionId, this.commonWireVersion, { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS }); + } + /** + * Returns a copy of this description updated with a given ServerDescription + * @internal + */ + update(serverDescription) { + const address = serverDescription.address; + // potentially mutated values + let { type: topologyType, setName, maxSetVersion, maxElectionId, commonWireVersion } = this; + const serverType = serverDescription.type; + const serverDescriptions = new Map(this.servers); + // update common wire version + if (serverDescription.maxWireVersion !== 0) { + if (commonWireVersion == null) { + commonWireVersion = serverDescription.maxWireVersion; + } + else { + commonWireVersion = Math.min(commonWireVersion, serverDescription.maxWireVersion); + } + } + if (typeof serverDescription.setName === 'string' && + typeof setName === 'string' && + serverDescription.setName !== setName) { + if (topologyType === common_1.TopologyType.Single) { + // "Single" Topology with setName mismatch is direct connection usage, mark unknown do not remove + serverDescription = new server_description_1.ServerDescription(address); + } + else { + serverDescriptions.delete(address); + } + } + // update the actual server description + serverDescriptions.set(address, serverDescription); + if (topologyType === common_1.TopologyType.Single) { + // once we are defined as single, that never changes + return new TopologyDescription(common_1.TopologyType.Single, serverDescriptions, setName, maxSetVersion, maxElectionId, commonWireVersion, { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS }); + } + if (topologyType === common_1.TopologyType.Unknown) { + if (serverType === common_1.ServerType.Standalone && this.servers.size !== 1) { + serverDescriptions.delete(address); + } + else { + topologyType = topologyTypeForServerType(serverType); + } + } + if (topologyType === common_1.TopologyType.Sharded) { + if (!MONGOS_OR_UNKNOWN.has(serverType)) { + serverDescriptions.delete(address); + } + } + if (topologyType === common_1.TopologyType.ReplicaSetNoPrimary) { + if (MONGOS_OR_STANDALONE.has(serverType)) { + serverDescriptions.delete(address); + } + if (serverType === common_1.ServerType.RSPrimary) { + const result = updateRsFromPrimary(serverDescriptions, serverDescription, setName, maxSetVersion, maxElectionId); + topologyType = result[0]; + setName = result[1]; + maxSetVersion = result[2]; + maxElectionId = result[3]; + } + else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) { + const result = updateRsNoPrimaryFromMember(serverDescriptions, serverDescription, setName); + topologyType = result[0]; + setName = result[1]; + } + } + if (topologyType === common_1.TopologyType.ReplicaSetWithPrimary) { + if (MONGOS_OR_STANDALONE.has(serverType)) { + serverDescriptions.delete(address); + topologyType = checkHasPrimary(serverDescriptions); + } + else if (serverType === common_1.ServerType.RSPrimary) { + const result = updateRsFromPrimary(serverDescriptions, serverDescription, setName, maxSetVersion, maxElectionId); + topologyType = result[0]; + setName = result[1]; + maxSetVersion = result[2]; + maxElectionId = result[3]; + } + else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) { + topologyType = updateRsWithPrimaryFromMember(serverDescriptions, serverDescription, setName); + } + else { + topologyType = checkHasPrimary(serverDescriptions); + } + } + return new TopologyDescription(topologyType, serverDescriptions, setName, maxSetVersion, maxElectionId, commonWireVersion, { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS }); + } + get error() { + const descriptionsWithError = Array.from(this.servers.values()).filter((sd) => sd.error); + if (descriptionsWithError.length > 0) { + return descriptionsWithError[0].error; + } + return null; + } + /** + * Determines if the topology description has any known servers + */ + get hasKnownServers() { + return Array.from(this.servers.values()).some((sd) => sd.type !== common_1.ServerType.Unknown); + } + /** + * Determines if this topology description has a data-bearing server available. + */ + get hasDataBearingServers() { + return Array.from(this.servers.values()).some((sd) => sd.isDataBearing); + } + /** + * Determines if the topology has a definition for the provided address + * @internal + */ + hasServer(address) { + return this.servers.has(address); + } + /** + * Returns a JSON-serializable representation of the TopologyDescription. This is primarily + * intended for use with JSON.stringify(). + * + * This method will not throw. + */ + toJSON() { + return bson_1.EJSON.serialize(this); + } +} +exports.TopologyDescription = TopologyDescription; +function topologyTypeForServerType(serverType) { + switch (serverType) { + case common_1.ServerType.Standalone: + return common_1.TopologyType.Single; + case common_1.ServerType.Mongos: + return common_1.TopologyType.Sharded; + case common_1.ServerType.RSPrimary: + return common_1.TopologyType.ReplicaSetWithPrimary; + case common_1.ServerType.RSOther: + case common_1.ServerType.RSSecondary: + return common_1.TopologyType.ReplicaSetNoPrimary; + default: + return common_1.TopologyType.Unknown; + } +} +function updateRsFromPrimary(serverDescriptions, serverDescription, setName = null, maxSetVersion = null, maxElectionId = null) { + setName = setName || serverDescription.setName; + if (setName !== serverDescription.setName) { + serverDescriptions.delete(serverDescription.address); + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; + } + if (serverDescription.maxWireVersion >= 17) { + const electionIdComparison = (0, utils_1.compareObjectId)(maxElectionId, serverDescription.electionId); + const maxElectionIdIsEqual = electionIdComparison === 0; + const maxElectionIdIsLess = electionIdComparison === -1; + const maxSetVersionIsLessOrEqual = (maxSetVersion ?? -1) <= (serverDescription.setVersion ?? -1); + if (maxElectionIdIsLess || (maxElectionIdIsEqual && maxSetVersionIsLessOrEqual)) { + // The reported electionId was greater + // or the electionId was equal and reported setVersion was greater + // Always update both values, they are a tuple + maxElectionId = serverDescription.electionId; + maxSetVersion = serverDescription.setVersion; + } + else { + // Stale primary + // replace serverDescription with a default ServerDescription of type "Unknown" + serverDescriptions.set(serverDescription.address, new server_description_1.ServerDescription(serverDescription.address)); + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; + } + } + else { + const electionId = serverDescription.electionId ? serverDescription.electionId : null; + if (serverDescription.setVersion && electionId) { + if (maxSetVersion && maxElectionId) { + if (maxSetVersion > serverDescription.setVersion || + (0, utils_1.compareObjectId)(maxElectionId, electionId) > 0) { + // this primary is stale, we must remove it + serverDescriptions.set(serverDescription.address, new server_description_1.ServerDescription(serverDescription.address)); + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; + } + } + maxElectionId = serverDescription.electionId; + } + if (serverDescription.setVersion != null && + (maxSetVersion == null || serverDescription.setVersion > maxSetVersion)) { + maxSetVersion = serverDescription.setVersion; + } + } + // We've heard from the primary. Is it the same primary as before? + for (const [address, server] of serverDescriptions) { + if (server.type === common_1.ServerType.RSPrimary && server.address !== serverDescription.address) { + // Reset old primary's type to Unknown. + serverDescriptions.set(address, new server_description_1.ServerDescription(server.address)); + // There can only be one primary + break; + } + } + // Discover new hosts from this primary's response. + serverDescription.allHosts.forEach((address) => { + if (!serverDescriptions.has(address)) { + serverDescriptions.set(address, new server_description_1.ServerDescription(address)); + } + }); + // Remove hosts not in the response. + const currentAddresses = Array.from(serverDescriptions.keys()); + const responseAddresses = serverDescription.allHosts; + currentAddresses + .filter((addr) => responseAddresses.indexOf(addr) === -1) + .forEach((address) => { + serverDescriptions.delete(address); + }); + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; +} +function updateRsWithPrimaryFromMember(serverDescriptions, serverDescription, setName = null) { + if (setName == null) { + // TODO(NODE-3483): should be an appropriate runtime error + throw new error_1.MongoRuntimeError('Argument "setName" is required if connected to a replica set'); + } + if (setName !== serverDescription.setName || + (serverDescription.me && serverDescription.address !== serverDescription.me)) { + serverDescriptions.delete(serverDescription.address); + } + return checkHasPrimary(serverDescriptions); +} +function updateRsNoPrimaryFromMember(serverDescriptions, serverDescription, setName = null) { + const topologyType = common_1.TopologyType.ReplicaSetNoPrimary; + setName = setName ?? serverDescription.setName; + if (setName !== serverDescription.setName) { + serverDescriptions.delete(serverDescription.address); + return [topologyType, setName]; + } + serverDescription.allHosts.forEach((address) => { + if (!serverDescriptions.has(address)) { + serverDescriptions.set(address, new server_description_1.ServerDescription(address)); + } + }); + if (serverDescription.me && serverDescription.address !== serverDescription.me) { + serverDescriptions.delete(serverDescription.address); + } + return [topologyType, setName]; +} +function checkHasPrimary(serverDescriptions) { + for (const serverDescription of serverDescriptions.values()) { + if (serverDescription.type === common_1.ServerType.RSPrimary) { + return common_1.TopologyType.ReplicaSetWithPrimary; + } + } + return common_1.TopologyType.ReplicaSetNoPrimary; +} +//# sourceMappingURL=topology_description.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology_description.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sdam/topology_description.js.map new file mode 100644 index 000000000..e94d476cb --- /dev/null +++ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sessions.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sessions.js new file mode 100644 index 000000000..4b5b22306 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sessions.js @@ -0,0 +1,779 @@ +"use strict"; +var _a; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.updateSessionFromResponse = exports.applySession = exports.ServerSessionPool = exports.ServerSession = exports.maybeClearPinnedConnection = exports.ClientSession = void 0; +const bson_1 = require("./bson"); +const metrics_1 = require("./cmap/metrics"); +const shared_1 = require("./cmap/wire_protocol/shared"); +const constants_1 = require("./constants"); +const error_1 = require("./error"); +const mongo_types_1 = require("./mongo_types"); +const execute_operation_1 = require("./operations/execute_operation"); +const run_command_1 = require("./operations/run_command"); +const read_concern_1 = require("./read_concern"); +const read_preference_1 = require("./read_preference"); +const common_1 = require("./sdam/common"); +const transactions_1 = require("./transactions"); +const utils_1 = require("./utils"); +const write_concern_1 = require("./write_concern"); +const minWireVersionForShardedTransactions = 8; +/** @internal */ +const kServerSession = Symbol('serverSession'); +/** @internal */ +const kSnapshotTime = Symbol('snapshotTime'); +/** @internal */ +const kSnapshotEnabled = Symbol('snapshotEnabled'); +/** @internal */ +const kPinnedConnection = Symbol('pinnedConnection'); +/** @internal Accumulates total number of increments to add to txnNumber when applying session to command */ +const kTxnNumberIncrement = Symbol('txnNumberIncrement'); +/** + * A class representing a client session on the server + * + * NOTE: not meant to be instantiated directly. + * @public + */ +class ClientSession extends mongo_types_1.TypedEventEmitter { + /** + * Create a client session. + * @internal + * @param client - The current client + * @param sessionPool - The server session pool (Internal Class) + * @param options - Optional settings + * @param clientOptions - Optional settings provided when creating a MongoClient + */ + constructor(client, sessionPool, options, clientOptions) { + super(); + /** @internal */ + this[_a] = false; + if (client == null) { + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError('ClientSession requires a MongoClient'); + } + if (sessionPool == null || !(sessionPool instanceof ServerSessionPool)) { + // TODO(NODE-3483) + throw new error_1.MongoRuntimeError('ClientSession requires a ServerSessionPool'); + } + options = options ?? {}; + if (options.snapshot === true) { + this[kSnapshotEnabled] = true; + if (options.causalConsistency === true) { + throw new error_1.MongoInvalidArgumentError('Properties "causalConsistency" and "snapshot" are mutually exclusive'); + } + } + this.client = client; + this.sessionPool = sessionPool; + this.hasEnded = false; + this.clientOptions = clientOptions; + this.timeoutMS = options.defaultTimeoutMS ?? client.options?.timeoutMS; + this.explicit = !!options.explicit; + this[kServerSession] = this.explicit ? this.sessionPool.acquire() : null; + this[kTxnNumberIncrement] = 0; + const defaultCausalConsistencyValue = this.explicit && options.snapshot !== true; + this.supports = { + // if we can enable causal consistency, do so by default + causalConsistency: options.causalConsistency ?? defaultCausalConsistencyValue + }; + this.clusterTime = options.initialClusterTime; + this.operationTime = undefined; + this.owner = options.owner; + this.defaultTransactionOptions = { ...options.defaultTransactionOptions }; + this.transaction = new transactions_1.Transaction(); + } + /** The server id associated with this session */ + get id() { + return this[kServerSession]?.id; + } + get serverSession() { + let serverSession = this[kServerSession]; + if (serverSession == null) { + if (this.explicit) { + throw new error_1.MongoRuntimeError('Unexpected null serverSession for an explicit session'); + } + if (this.hasEnded) { + throw new error_1.MongoRuntimeError('Unexpected null serverSession for an ended implicit session'); + } + serverSession = this.sessionPool.acquire(); + this[kServerSession] = serverSession; + } + return serverSession; + } + /** Whether or not this session is configured for snapshot reads */ + get snapshotEnabled() { + return this[kSnapshotEnabled]; + } + get loadBalanced() { + return this.client.topology?.description.type === common_1.TopologyType.LoadBalanced; + } + /** @internal */ + get pinnedConnection() { + return this[kPinnedConnection]; + } + /** @internal */ + pin(conn) { + if (this[kPinnedConnection]) { + throw TypeError('Cannot pin multiple connections to the same session'); + } + this[kPinnedConnection] = conn; + conn.emit(constants_1.PINNED, this.inTransaction() ? metrics_1.ConnectionPoolMetrics.TXN : metrics_1.ConnectionPoolMetrics.CURSOR); + } + /** @internal */ + unpin(options) { + if (this.loadBalanced) { + return maybeClearPinnedConnection(this, options); + } + this.transaction.unpinServer(); + } + get isPinned() { + return this.loadBalanced ? !!this[kPinnedConnection] : this.transaction.isPinned; + } + /** + * Ends this session on the server + * + * @param options - Optional settings. Currently reserved for future use + */ + async endSession(options) { + try { + if (this.inTransaction()) { + await this.abortTransaction(); + } + if (!this.hasEnded) { + const serverSession = this[kServerSession]; + if (serverSession != null) { + // release the server session back to the pool + this.sessionPool.release(serverSession); + // Make sure a new serverSession never makes it onto this ClientSession + Object.defineProperty(this, kServerSession, { + value: ServerSession.clone(serverSession), + writable: false + }); + } + // mark the session as ended, and emit a signal + this.hasEnded = true; + this.emit('ended', this); + } + } + catch (error) { + // spec indicates that we should ignore all errors for `endSessions` + (0, utils_1.squashError)(error); + } + finally { + maybeClearPinnedConnection(this, { force: true, ...options }); + } + } + /** + * Advances the operationTime for a ClientSession. + * + * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to + */ + advanceOperationTime(operationTime) { + if (this.operationTime == null) { + this.operationTime = operationTime; + return; + } + if (operationTime.greaterThan(this.operationTime)) { + this.operationTime = operationTime; + } + } + /** + * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession + * + * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature + */ + advanceClusterTime(clusterTime) { + if (!clusterTime || typeof clusterTime !== 'object') { + throw new error_1.MongoInvalidArgumentError('input cluster time must be an object'); + } + if (!clusterTime.clusterTime || clusterTime.clusterTime._bsontype !== 'Timestamp') { + throw new error_1.MongoInvalidArgumentError('input cluster time "clusterTime" property must be a valid BSON Timestamp'); + } + if (!clusterTime.signature || + clusterTime.signature.hash?._bsontype !== 'Binary' || + (typeof clusterTime.signature.keyId !== 'bigint' && + typeof clusterTime.signature.keyId !== 'number' && + clusterTime.signature.keyId?._bsontype !== 'Long') // apparently we decode the key to number? + ) { + throw new error_1.MongoInvalidArgumentError('input cluster time must have a valid "signature" property with BSON Binary hash and BSON Long keyId'); + } + (0, common_1._advanceClusterTime)(this, clusterTime); + } + /** + * Used to determine if this session equals another + * + * @param session - The session to compare to + */ + equals(session) { + if (!(session instanceof ClientSession)) { + return false; + } + if (this.id == null || session.id == null) { + return false; + } + return utils_1.ByteUtils.equals(this.id.id.buffer, session.id.id.buffer); + } + /** + * Increment the transaction number on the internal ServerSession + * + * @privateRemarks + * This helper increments a value stored on the client session that will be + * added to the serverSession's txnNumber upon applying it to a command. + * This is because the serverSession is lazily acquired after a connection is obtained + */ + incrementTransactionNumber() { + this[kTxnNumberIncrement] += 1; + } + /** @returns whether this session is currently in a transaction or not */ + inTransaction() { + return this.transaction.isActive; + } + /** + * Starts a new transaction with the given options. + * + * @param options - Options for the transaction + */ + startTransaction(options) { + if (this[kSnapshotEnabled]) { + throw new error_1.MongoCompatibilityError('Transactions are not supported in snapshot sessions'); + } + if (this.inTransaction()) { + throw new error_1.MongoTransactionError('Transaction already in progress'); + } + if (this.isPinned && this.transaction.isCommitted) { + this.unpin(); + } + const topologyMaxWireVersion = (0, utils_1.maxWireVersion)(this.client.topology); + if ((0, shared_1.isSharded)(this.client.topology) && + topologyMaxWireVersion != null && + topologyMaxWireVersion < minWireVersionForShardedTransactions) { + throw new error_1.MongoCompatibilityError('Transactions are not supported on sharded clusters in MongoDB < 4.2.'); + } + // increment txnNumber + this.incrementTransactionNumber(); + // create transaction state + this.transaction = new transactions_1.Transaction({ + readConcern: options?.readConcern ?? + this.defaultTransactionOptions.readConcern ?? + this.clientOptions?.readConcern, + writeConcern: options?.writeConcern ?? + this.defaultTransactionOptions.writeConcern ?? + this.clientOptions?.writeConcern, + readPreference: options?.readPreference ?? + this.defaultTransactionOptions.readPreference ?? + this.clientOptions?.readPreference, + maxCommitTimeMS: options?.maxCommitTimeMS ?? this.defaultTransactionOptions.maxCommitTimeMS + }); + this.transaction.transition(transactions_1.TxnState.STARTING_TRANSACTION); + } + /** + * Commits the currently active transaction in this session. + */ + async commitTransaction() { + return await endTransaction(this, 'commitTransaction'); + } + /** + * Aborts the currently active transaction in this session. + */ + async abortTransaction() { + return await endTransaction(this, 'abortTransaction'); + } + /** + * This is here to ensure that ClientSession is never serialized to BSON. + */ + toBSON() { + throw new error_1.MongoRuntimeError('ClientSession cannot be serialized to BSON.'); + } + /** + * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed. + * + * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise. + * + * @remarks + * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function. + * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error. + * - If the transaction is manually aborted within the provided function it will not throw. + * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times. + * + * Checkout a descriptive example here: + * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions + * + * If a command inside withTransaction fails: + * - It may cause the transaction on the server to be aborted. + * - This situation is normally handled transparently by the driver. + * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not. + * - The driver will then retry the transaction indefinitely. + * + * To avoid this situation, the application must not silently handle errors within the provided function. + * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction. + * + * @param fn - callback to run within a transaction + * @param options - optional settings for the transaction + * @returns A raw command response or undefined + */ + async withTransaction(fn, options) { + const startTime = (0, utils_1.now)(); + return await attemptTransaction(this, startTime, fn, options); + } +} +exports.ClientSession = ClientSession; +_a = kSnapshotEnabled; +const MAX_WITH_TRANSACTION_TIMEOUT = 120000; +const NON_DETERMINISTIC_WRITE_CONCERN_ERRORS = new Set([ + 'CannotSatisfyWriteConcern', + 'UnknownReplWriteConcern', + 'UnsatisfiableWriteConcern' +]); +function hasNotTimedOut(startTime, max) { + return (0, utils_1.calculateDurationInMs)(startTime) < max; +} +function isUnknownTransactionCommitResult(err) { + const isNonDeterministicWriteConcernError = err instanceof error_1.MongoServerError && + err.codeName && + NON_DETERMINISTIC_WRITE_CONCERN_ERRORS.has(err.codeName); + return (isMaxTimeMSExpiredError(err) || + (!isNonDeterministicWriteConcernError && + err.code !== error_1.MONGODB_ERROR_CODES.UnsatisfiableWriteConcern && + err.code !== error_1.MONGODB_ERROR_CODES.UnknownReplWriteConcern)); +} +function maybeClearPinnedConnection(session, options) { + // unpin a connection if it has been pinned + const conn = session[kPinnedConnection]; + const error = options?.error; + if (session.inTransaction() && + error && + error instanceof error_1.MongoError && + error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) { + return; + } + const topology = session.client.topology; + // NOTE: the spec talks about what to do on a network error only, but the tests seem to + // to validate that we don't unpin on _all_ errors? + if (conn && topology != null) { + const servers = Array.from(topology.s.servers.values()); + const loadBalancer = servers[0]; + if (options?.error == null || options?.force) { + loadBalancer.pool.checkIn(conn); + session[kPinnedConnection] = undefined; + conn.emit(constants_1.UNPINNED, session.transaction.state !== transactions_1.TxnState.NO_TRANSACTION + ? metrics_1.ConnectionPoolMetrics.TXN + : metrics_1.ConnectionPoolMetrics.CURSOR); + if (options?.forceClear) { + loadBalancer.pool.clear({ serviceId: conn.serviceId }); + } + } + } +} +exports.maybeClearPinnedConnection = maybeClearPinnedConnection; +function isMaxTimeMSExpiredError(err) { + if (err == null || !(err instanceof error_1.MongoServerError)) { + return false; + } + return (err.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired || + (err.writeConcernError && err.writeConcernError.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired)); +} +async function attemptTransactionCommit(session, startTime, fn, result, options) { + try { + await session.commitTransaction(); + return result; + } + catch (commitErr) { + if (commitErr instanceof error_1.MongoError && + hasNotTimedOut(startTime, MAX_WITH_TRANSACTION_TIMEOUT) && + !isMaxTimeMSExpiredError(commitErr)) { + if (commitErr.hasErrorLabel(error_1.MongoErrorLabel.UnknownTransactionCommitResult)) { + return await attemptTransactionCommit(session, startTime, fn, result, options); + } + if (commitErr.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) { + return await attemptTransaction(session, startTime, fn, options); + } + } + throw commitErr; + } +} +const USER_EXPLICIT_TXN_END_STATES = new Set([ + transactions_1.TxnState.NO_TRANSACTION, + transactions_1.TxnState.TRANSACTION_COMMITTED, + transactions_1.TxnState.TRANSACTION_ABORTED +]); +function userExplicitlyEndedTransaction(session) { + return USER_EXPLICIT_TXN_END_STATES.has(session.transaction.state); +} +async function attemptTransaction(session, startTime, fn, options = {}) { + session.startTransaction(options); + let promise; + try { + promise = fn(session); + } + catch (err) { + promise = Promise.reject(err); + } + if (!(0, utils_1.isPromiseLike)(promise)) { + try { + await session.abortTransaction(); + } + catch (error) { + (0, utils_1.squashError)(error); + } + throw new error_1.MongoInvalidArgumentError('Function provided to `withTransaction` must return a Promise'); + } + try { + const result = await promise; + if (userExplicitlyEndedTransaction(session)) { + return result; + } + return await attemptTransactionCommit(session, startTime, fn, result, options); + } + catch (err) { + if (session.inTransaction()) { + await session.abortTransaction(); + } + if (err instanceof error_1.MongoError && + err.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError) && + hasNotTimedOut(startTime, MAX_WITH_TRANSACTION_TIMEOUT)) { + return await attemptTransaction(session, startTime, fn, options); + } + if (isMaxTimeMSExpiredError(err)) { + err.addErrorLabel(error_1.MongoErrorLabel.UnknownTransactionCommitResult); + } + throw err; + } +} +async function endTransaction(session, commandName) { + // handle any initial problematic cases + const txnState = session.transaction.state; + if (txnState === transactions_1.TxnState.NO_TRANSACTION) { + throw new error_1.MongoTransactionError('No transaction started'); + } + if (commandName === 'commitTransaction') { + if (txnState === transactions_1.TxnState.STARTING_TRANSACTION || + txnState === transactions_1.TxnState.TRANSACTION_COMMITTED_EMPTY) { + // the transaction was never started, we can safely exit here + session.transaction.transition(transactions_1.TxnState.TRANSACTION_COMMITTED_EMPTY); + return; + } + if (txnState === transactions_1.TxnState.TRANSACTION_ABORTED) { + throw new error_1.MongoTransactionError('Cannot call commitTransaction after calling abortTransaction'); + } + } + else { + if (txnState === transactions_1.TxnState.STARTING_TRANSACTION) { + // the transaction was never started, we can safely exit here + session.transaction.transition(transactions_1.TxnState.TRANSACTION_ABORTED); + return; + } + if (txnState === transactions_1.TxnState.TRANSACTION_ABORTED) { + throw new error_1.MongoTransactionError('Cannot call abortTransaction twice'); + } + if (txnState === transactions_1.TxnState.TRANSACTION_COMMITTED || + txnState === transactions_1.TxnState.TRANSACTION_COMMITTED_EMPTY) { + throw new error_1.MongoTransactionError('Cannot call abortTransaction after calling commitTransaction'); + } + } + // construct and send the command + const command = { [commandName]: 1 }; + // apply a writeConcern if specified + let writeConcern; + if (session.transaction.options.writeConcern) { + writeConcern = Object.assign({}, session.transaction.options.writeConcern); + } + else if (session.clientOptions && session.clientOptions.writeConcern) { + writeConcern = { w: session.clientOptions.writeConcern.w }; + } + if (txnState === transactions_1.TxnState.TRANSACTION_COMMITTED) { + writeConcern = Object.assign({ wtimeoutMS: 10000 }, writeConcern, { w: 'majority' }); + } + if (writeConcern) { + write_concern_1.WriteConcern.apply(command, writeConcern); + } + if (commandName === 'commitTransaction' && session.transaction.options.maxTimeMS) { + Object.assign(command, { maxTimeMS: session.transaction.options.maxTimeMS }); + } + if (session.transaction.recoveryToken) { + command.recoveryToken = session.transaction.recoveryToken; + } + try { + // send the command + await (0, execute_operation_1.executeOperation)(session.client, new run_command_1.RunAdminCommandOperation(command, { + session, + readPreference: read_preference_1.ReadPreference.primary, + bypassPinningCheck: true + })); + if (command.abortTransaction) { + // always unpin on abort regardless of command outcome + session.unpin(); + } + if (commandName !== 'commitTransaction') { + session.transaction.transition(transactions_1.TxnState.TRANSACTION_ABORTED); + if (session.loadBalanced) { + maybeClearPinnedConnection(session, { force: false }); + } + } + else { + session.transaction.transition(transactions_1.TxnState.TRANSACTION_COMMITTED); + } + } + catch (firstAttemptErr) { + if (command.abortTransaction) { + // always unpin on abort regardless of command outcome + session.unpin(); + } + if (firstAttemptErr instanceof error_1.MongoError && (0, error_1.isRetryableWriteError)(firstAttemptErr)) { + // SPEC-1185: apply majority write concern when retrying commitTransaction + if (command.commitTransaction) { + // per txns spec, must unpin session in this case + session.unpin({ force: true }); + command.writeConcern = Object.assign({ wtimeout: 10000 }, command.writeConcern, { + w: 'majority' + }); + } + try { + await (0, execute_operation_1.executeOperation)(session.client, new run_command_1.RunAdminCommandOperation(command, { + session, + readPreference: read_preference_1.ReadPreference.primary, + bypassPinningCheck: true + })); + if (commandName !== 'commitTransaction') { + session.transaction.transition(transactions_1.TxnState.TRANSACTION_ABORTED); + if (session.loadBalanced) { + maybeClearPinnedConnection(session, { force: false }); + } + } + else { + session.transaction.transition(transactions_1.TxnState.TRANSACTION_COMMITTED); + } + } + catch (secondAttemptErr) { + handleEndTransactionError(session, commandName, secondAttemptErr); + } + } + else { + handleEndTransactionError(session, commandName, firstAttemptErr); + } + } +} +function handleEndTransactionError(session, commandName, error) { + if (commandName !== 'commitTransaction') { + session.transaction.transition(transactions_1.TxnState.TRANSACTION_ABORTED); + if (session.loadBalanced) { + maybeClearPinnedConnection(session, { force: false }); + } + // The spec indicates that if the operation times out or fails with a non-retryable error, we should ignore all errors on `abortTransaction` + return; + } + session.transaction.transition(transactions_1.TxnState.TRANSACTION_COMMITTED); + if (error instanceof error_1.MongoError) { + if ((0, error_1.isRetryableWriteError)(error) || + error instanceof error_1.MongoWriteConcernError || + isMaxTimeMSExpiredError(error)) { + if (isUnknownTransactionCommitResult(error)) { + error.addErrorLabel(error_1.MongoErrorLabel.UnknownTransactionCommitResult); + // per txns spec, must unpin session in this case + session.unpin({ error }); + } + } + else if (error.hasErrorLabel(error_1.MongoErrorLabel.TransientTransactionError)) { + session.unpin({ error }); + } + } + throw error; +} +/** + * Reflects the existence of a session on the server. Can be reused by the session pool. + * WARNING: not meant to be instantiated directly. For internal use only. + * @public + */ +class ServerSession { + /** @internal */ + constructor() { + this.id = { id: new bson_1.Binary((0, utils_1.uuidV4)(), bson_1.Binary.SUBTYPE_UUID) }; + this.lastUse = (0, utils_1.now)(); + this.txnNumber = 0; + this.isDirty = false; + } + /** + * Determines if the server session has timed out. + * + * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes" + */ + hasTimedOut(sessionTimeoutMinutes) { + // Take the difference of the lastUse timestamp and now, which will result in a value in + // milliseconds, and then convert milliseconds to minutes to compare to `sessionTimeoutMinutes` + const idleTimeMinutes = Math.round((((0, utils_1.calculateDurationInMs)(this.lastUse) % 86400000) % 3600000) / 60000); + return idleTimeMinutes > sessionTimeoutMinutes - 1; + } + /** + * @internal + * Cloning meant to keep a readable reference to the server session data + * after ClientSession has ended + */ + static clone(serverSession) { + const arrayBuffer = new ArrayBuffer(16); + const idBytes = Buffer.from(arrayBuffer); + idBytes.set(serverSession.id.id.buffer); + const id = new bson_1.Binary(idBytes, serverSession.id.id.sub_type); + // Manual prototype construction to avoid modifying the constructor of this class + return Object.setPrototypeOf({ + id: { id }, + lastUse: serverSession.lastUse, + txnNumber: serverSession.txnNumber, + isDirty: serverSession.isDirty + }, ServerSession.prototype); + } +} +exports.ServerSession = ServerSession; +/** + * Maintains a pool of Server Sessions. + * For internal use only + * @internal + */ +class ServerSessionPool { + constructor(client) { + if (client == null) { + throw new error_1.MongoRuntimeError('ServerSessionPool requires a MongoClient'); + } + this.client = client; + this.sessions = new utils_1.List(); + } + /** + * Acquire a Server Session from the pool. + * Iterates through each session in the pool, removing any stale sessions + * along the way. The first non-stale session found is removed from the + * pool and returned. If no non-stale session is found, a new ServerSession is created. + */ + acquire() { + const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10; + let session = null; + // Try to obtain from session pool + while (this.sessions.length > 0) { + const potentialSession = this.sessions.shift(); + if (potentialSession != null && + (!!this.client.topology?.loadBalanced || + !potentialSession.hasTimedOut(sessionTimeoutMinutes))) { + session = potentialSession; + break; + } + } + // If nothing valid came from the pool make a new one + if (session == null) { + session = new ServerSession(); + } + return session; + } + /** + * Release a session to the session pool + * Adds the session back to the session pool if the session has not timed out yet. + * This method also removes any stale sessions from the pool. + * + * @param session - The session to release to the pool + */ + release(session) { + const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10; + if (this.client.topology?.loadBalanced && !sessionTimeoutMinutes) { + this.sessions.unshift(session); + } + if (!sessionTimeoutMinutes) { + return; + } + this.sessions.prune(session => session.hasTimedOut(sessionTimeoutMinutes)); + if (!session.hasTimedOut(sessionTimeoutMinutes)) { + if (session.isDirty) { + return; + } + // otherwise, readd this session to the session pool + this.sessions.unshift(session); + } + } +} +exports.ServerSessionPool = ServerSessionPool; +/** + * Optionally decorate a command with sessions specific keys + * + * @param session - the session tracking transaction state + * @param command - the command to decorate + * @param options - Optional settings passed to calling operation + * + * @internal + */ +function applySession(session, command, options) { + if (session.hasEnded) { + return new error_1.MongoExpiredSessionError(); + } + // May acquire serverSession here + const serverSession = session.serverSession; + if (serverSession == null) { + return new error_1.MongoRuntimeError('Unable to acquire server session'); + } + if (options.writeConcern?.w === 0) { + if (session && session.explicit) { + // Error if user provided an explicit session to an unacknowledged write (SPEC-1019) + return new error_1.MongoAPIError('Cannot have explicit session with unacknowledged writes'); + } + return; + } + // mark the last use of this session, and apply the `lsid` + serverSession.lastUse = (0, utils_1.now)(); + command.lsid = serverSession.id; + const inTxnOrTxnCommand = session.inTransaction() || (0, transactions_1.isTransactionCommand)(command); + const isRetryableWrite = !!options.willRetryWrite; + if (isRetryableWrite || inTxnOrTxnCommand) { + serverSession.txnNumber += session[kTxnNumberIncrement]; + session[kTxnNumberIncrement] = 0; + // TODO(NODE-2674): Preserve int64 sent from MongoDB + command.txnNumber = bson_1.Long.fromNumber(serverSession.txnNumber); + } + if (!inTxnOrTxnCommand) { + if (session.transaction.state !== transactions_1.TxnState.NO_TRANSACTION) { + session.transaction.transition(transactions_1.TxnState.NO_TRANSACTION); + } + if (session.supports.causalConsistency && + session.operationTime && + (0, utils_1.commandSupportsReadConcern)(command)) { + command.readConcern = command.readConcern || {}; + Object.assign(command.readConcern, { afterClusterTime: session.operationTime }); + } + else if (session[kSnapshotEnabled]) { + command.readConcern = command.readConcern || { level: read_concern_1.ReadConcernLevel.snapshot }; + if (session[kSnapshotTime] != null) { + Object.assign(command.readConcern, { atClusterTime: session[kSnapshotTime] }); + } + } + return; + } + // now attempt to apply transaction-specific sessions data + // `autocommit` must always be false to differentiate from retryable writes + command.autocommit = false; + if (session.transaction.state === transactions_1.TxnState.STARTING_TRANSACTION) { + session.transaction.transition(transactions_1.TxnState.TRANSACTION_IN_PROGRESS); + command.startTransaction = true; + const readConcern = session.transaction.options.readConcern || session?.clientOptions?.readConcern; + if (readConcern) { + command.readConcern = readConcern; + } + if (session.supports.causalConsistency && session.operationTime) { + command.readConcern = command.readConcern || {}; + Object.assign(command.readConcern, { afterClusterTime: session.operationTime }); + } + } + return; +} +exports.applySession = applySession; +function updateSessionFromResponse(session, document) { + if (document.$clusterTime) { + (0, common_1._advanceClusterTime)(session, document.$clusterTime); + } + if (document.operationTime && session && session.supports.causalConsistency) { + session.advanceOperationTime(document.operationTime); + } + if (document.recoveryToken && session && session.inTransaction()) { + session.transaction._recoveryToken = document.recoveryToken; + } + if (session?.[kSnapshotEnabled] && session[kSnapshotTime] == null) { + // find and aggregate commands return atClusterTime on the cursor + // distinct includes it in the response body + const atClusterTime = document.atClusterTime; + if (atClusterTime) { + session[kSnapshotTime] = atClusterTime; + } + } +} +exports.updateSessionFromResponse = updateSessionFromResponse; +//# sourceMappingURL=sessions.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sessions.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/sessions.js.map new file mode 100644 index 000000000..2eef1f993 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sessions.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sort.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/sort.js new file mode 100644 index 000000000..c04b6b54c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/sort.js @@ -0,0 +1,97 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.formatSort = void 0; +const error_1 = require("./error"); +/** @internal */ +function prepareDirection(direction = 1) { + const value = `${direction}`.toLowerCase(); + if (isMeta(direction)) + return direction; + switch (value) { + case 'ascending': + case 'asc': + case '1': + return 1; + case 'descending': + case 'desc': + case '-1': + return -1; + default: + throw new error_1.MongoInvalidArgumentError(`Invalid sort direction: ${JSON.stringify(direction)}`); + } +} +/** @internal */ +function isMeta(t) { + return typeof t === 'object' && t != null && '$meta' in t && typeof t.$meta === 'string'; +} +/** @internal */ +function isPair(t) { + if (Array.isArray(t) && t.length === 2) { + try { + prepareDirection(t[1]); + return true; + } + catch (e) { + return false; + } + } + return false; +} +function isDeep(t) { + return Array.isArray(t) && Array.isArray(t[0]); +} +function isMap(t) { + return t instanceof Map && t.size > 0; +} +/** @internal */ +function pairToMap(v) { + return new Map([[`${v[0]}`, prepareDirection([v[1]])]]); +} +/** @internal */ +function deepToMap(t) { + const sortEntries = t.map(([k, v]) => [`${k}`, prepareDirection(v)]); + return new Map(sortEntries); +} +/** @internal */ +function stringsToMap(t) { + const sortEntries = t.map(key => [`${key}`, 1]); + return new Map(sortEntries); +} +/** @internal */ +function objectToMap(t) { + const sortEntries = Object.entries(t).map(([k, v]) => [ + `${k}`, + prepareDirection(v) + ]); + return new Map(sortEntries); +} +/** @internal */ +function mapToMap(t) { + const sortEntries = Array.from(t).map(([k, v]) => [ + `${k}`, + prepareDirection(v) + ]); + return new Map(sortEntries); +} +/** converts a Sort type into a type that is valid for the server (SortForCmd) */ +function formatSort(sort, direction) { + if (sort == null) + return undefined; + if (typeof sort === 'string') + return new Map([[sort, prepareDirection(direction)]]); + if (typeof sort !== 'object') { + throw new error_1.MongoInvalidArgumentError(`Invalid sort format: ${JSON.stringify(sort)} Sort must be a valid object`); + } + if (!Array.isArray(sort)) { + return isMap(sort) ? mapToMap(sort) : Object.keys(sort).length ? objectToMap(sort) : undefined; + } + if (!sort.length) + return undefined; + if (isDeep(sort)) + return deepToMap(sort); + if (isPair(sort)) + return pairToMap(sort); + return stringsToMap(sort); +} +exports.formatSort = formatSort; +//# sourceMappingURL=sort.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/sort.js.map 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pending or rejected states. It is guaranteed not to resolve + * if interacted with exclusively through its public API + * */ +class Timeout extends Promise { + get [Symbol.toStringTag]() { + return 'MongoDBTimeout'; + } + /** Create a new timeout that expires in `duration` ms */ + constructor(executor = () => null, duration, unref = false) { + let reject; + if (duration < 0) { + throw new error_1.MongoInvalidArgumentError('Cannot create a Timeout with a negative duration'); + } + super((_, promiseReject) => { + reject = promiseReject; + executor(utils_1.noop, promiseReject); + }); + this.ended = null; + this.timedOut = false; + this.duration = duration; + this.start = Math.trunc(performance.now()); + if (this.duration > 0) { + this.id = (0, timers_1.setTimeout)(() => { + this.ended = Math.trunc(performance.now()); + this.timedOut = true; + reject(new TimeoutError(`Expired after ${duration}ms`)); + }, this.duration); + if (typeof this.id.unref === 'function' && unref) { + // Ensure we do not keep the Node.js event loop running + this.id.unref(); + } + } + } + /** + * Clears the underlying timeout. This method is idempotent + */ + clear() { + (0, timers_1.clearTimeout)(this.id); + this.id = undefined; + } + static expires(durationMS, unref) { + return new Timeout(undefined, durationMS, unref); + } + static is(timeout) { + return (typeof timeout === 'object' && + timeout != null && + Symbol.toStringTag in timeout && + timeout[Symbol.toStringTag] === 'MongoDBTimeout' && + 'then' in timeout && + // eslint-disable-next-line github/no-then + typeof timeout.then === 'function'); + } +} +exports.Timeout = Timeout; +//# sourceMappingURL=timeout.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/timeout.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/timeout.js.map new file mode 100644 index 000000000..39732d77f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/timeout.js.map @@ -0,0 +1 @@ +{"version":3,"file":"timeout.js","sourceRoot":"","sources":["../src/timeout.ts"],"names":[],"mappings":";;;AAAA,mCAAkD;AAElD,mCAAoD;AACpD,mCAA+B;AAE/B,gBAAgB;AAChB,MAAa,YAAa,SAAQ,KAAK;IACrC,IAAa,IAAI;QACf,OAAO,cAAc,CAAC;IACxB,CAAC;IAED,YAAY,OAAe,EAAE,OAA2B;QACtD,KAAK,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;IAC1B,CAAC;IAED,MAAM,CAAC,EAAE,CAAC,KAAc;QACtB,OAAO,CACL,KAAK,IAAI,IAAI,IAAI,OAAO,KAAK,KAAK,QAAQ,IAAI,MAAM,IAAI,KAAK,IAAI,KAAK,CAAC,IAAI,KAAK,cAAc,CAC/F,CAAC;IACJ,CAAC;CACF;AAdD,oCAcC;AAID;;;;;KAKK;AACL,MAAa,OAAQ,SAAQ,OAAc;IACzC,IAAI,CAAC,MAAM,CAAC,WAAW,CAAC;QACtB,OAAO,gBAAgB,CAAC;IAC1B,CAAC;IASD,yDAAyD;IACzD,YAAoB,WAAqB,GAAG,EAAE,CAAC,IAAI,EAAE,QAAgB,EAAE,KAAK,GAAG,KAAK;QAClF,IAAI,MAAe,CAAC;QAEpB,IAAI,QAAQ,GAAG,CAAC,EAAE;YAChB,MAAM,IAAI,iCAAyB,CAAC,kDAAkD,CAAC,CAAC;SACzF;QAED,KAAK,CAAC,CAAC,CAAC,EAAE,aAAa,EAAE,EAAE;YACzB,MAAM,GAAG,aAAa,CAAC;YAEvB,QAAQ,CAAC,YAAI,EAAE,aAAa,CAAC,CAAC;QAChC,CAAC,CAAC,CAAC;QAhBE,UAAK,GAAkB,IAAI,CAAC;QAE5B,aAAQ,GAAG,KAAK,CAAC;QAgBtB,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;QAE3C,IAAI,IAAI,CAAC,QAAQ,GAAG,CAAC,EAAE;YACrB,IAAI,CAAC,EAAE,GAAG,IAAA,mBAAU,EAAC,GAAG,EAAE;gBACxB,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,WAAW,CAAC,GAAG,EAAE,CAAC,CAAC;gBAC3C,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC;gBACrB,MAAM,CAAC,IAAI,YAAY,CAAC,iBAAiB,QAAQ,IAAI,CAAC,CAAC,CAAC;YAC1D,CAAC,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;YAClB,IAAI,OAAO,IAAI,CAAC,EAAE,CAAC,KAAK,KAAK,UAAU,IAAI,KAAK,EAAE;gBAChD,uDAAuD;gBACvD,IAAI,CAAC,EAAE,CAAC,KAAK,EAAE,CAAC;aACjB;SACF;IACH,CAAC;IAED;;OAEG;IACH,KAAK;QACH,IAAA,qBAAY,EAAC,IAAI,CAAC,EAAE,CAAC,CAAC;QACtB,IAAI,CAAC,EAAE,GAAG,SAAS,CAAC;IACtB,CAAC;IAEM,MAAM,CAAC,OAAO,CAAC,UAAkB,EAAE,KAAe;QACvD,OAAO,IAAI,OAAO,CAAC,SAAS,EAAE,UAAU,EAAE,KAAK,CAAC,CAAC;IACnD,CAAC;IAED,MAAM,CAAC,EAAE,CAAC,OAAgB;QACxB,OAAO,CACL,OAAO,OAAO,KAAK,QAAQ;YAC3B,OAAO,IAAI,IAAI;YACf,MAAM,CAAC,WAAW,IAAI,OAAO;YAC7B,OAAO,CAAC,MAAM,CAAC,WAAW,CAAC,KAAK,gBAAgB;YAChD,MAAM,IAAI,OAAO;YACjB,0CAA0C;YAC1C,OAAO,OAAO,CAAC,IAAI,KAAK,UAAU,CACnC,CAAC;IACJ,CAAC;CACF;AAjED,0BAiEC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/transactions.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/transactions.js new file mode 100644 index 000000000..a4235b07e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/transactions.js @@ -0,0 +1,138 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.isTransactionCommand = exports.Transaction = exports.TxnState = void 0; +const error_1 = require("./error"); +const read_concern_1 = require("./read_concern"); +const read_preference_1 = require("./read_preference"); +const write_concern_1 = require("./write_concern"); +/** @internal */ +exports.TxnState = Object.freeze({ + NO_TRANSACTION: 'NO_TRANSACTION', + STARTING_TRANSACTION: 'STARTING_TRANSACTION', + TRANSACTION_IN_PROGRESS: 'TRANSACTION_IN_PROGRESS', + TRANSACTION_COMMITTED: 'TRANSACTION_COMMITTED', + TRANSACTION_COMMITTED_EMPTY: 'TRANSACTION_COMMITTED_EMPTY', + TRANSACTION_ABORTED: 'TRANSACTION_ABORTED' +}); +const stateMachine = { + [exports.TxnState.NO_TRANSACTION]: [exports.TxnState.NO_TRANSACTION, exports.TxnState.STARTING_TRANSACTION], + [exports.TxnState.STARTING_TRANSACTION]: [ + exports.TxnState.TRANSACTION_IN_PROGRESS, + exports.TxnState.TRANSACTION_COMMITTED, + exports.TxnState.TRANSACTION_COMMITTED_EMPTY, + exports.TxnState.TRANSACTION_ABORTED + ], + [exports.TxnState.TRANSACTION_IN_PROGRESS]: [ + exports.TxnState.TRANSACTION_IN_PROGRESS, + exports.TxnState.TRANSACTION_COMMITTED, + exports.TxnState.TRANSACTION_ABORTED + ], + [exports.TxnState.TRANSACTION_COMMITTED]: [ + exports.TxnState.TRANSACTION_COMMITTED, + exports.TxnState.TRANSACTION_COMMITTED_EMPTY, + exports.TxnState.STARTING_TRANSACTION, + exports.TxnState.NO_TRANSACTION + ], + [exports.TxnState.TRANSACTION_ABORTED]: [exports.TxnState.STARTING_TRANSACTION, exports.TxnState.NO_TRANSACTION], + [exports.TxnState.TRANSACTION_COMMITTED_EMPTY]: [ + exports.TxnState.TRANSACTION_COMMITTED_EMPTY, + exports.TxnState.NO_TRANSACTION + ] +}; +const ACTIVE_STATES = new Set([ + exports.TxnState.STARTING_TRANSACTION, + exports.TxnState.TRANSACTION_IN_PROGRESS +]); +const COMMITTED_STATES = new Set([ + exports.TxnState.TRANSACTION_COMMITTED, + exports.TxnState.TRANSACTION_COMMITTED_EMPTY, + exports.TxnState.TRANSACTION_ABORTED +]); +/** + * @public + * A class maintaining state related to a server transaction. Internal Only + */ +class Transaction { + /** Create a transaction @internal */ + constructor(options) { + options = options ?? {}; + this.state = exports.TxnState.NO_TRANSACTION; + this.options = {}; + const writeConcern = write_concern_1.WriteConcern.fromOptions(options); + if (writeConcern) { + if (writeConcern.w === 0) { + throw new error_1.MongoTransactionError('Transactions do not support unacknowledged write concern'); + } + this.options.writeConcern = writeConcern; + } + if (options.readConcern) { + this.options.readConcern = read_concern_1.ReadConcern.fromOptions(options); + } + if (options.readPreference) { + this.options.readPreference = read_preference_1.ReadPreference.fromOptions(options); + } + if (options.maxCommitTimeMS) { + this.options.maxTimeMS = options.maxCommitTimeMS; + } + // TODO: This isn't technically necessary + this._pinnedServer = undefined; + this._recoveryToken = undefined; + } + /** @internal */ + get server() { + return this._pinnedServer; + } + get recoveryToken() { + return this._recoveryToken; + } + get isPinned() { + return !!this.server; + } + /** @returns Whether the transaction has started */ + get isStarting() { + return this.state === exports.TxnState.STARTING_TRANSACTION; + } + /** + * @returns Whether this session is presently in a transaction + */ + get isActive() { + return ACTIVE_STATES.has(this.state); + } + get isCommitted() { + return COMMITTED_STATES.has(this.state); + } + /** + * Transition the transaction in the state machine + * @internal + * @param nextState - The new state to transition to + */ + transition(nextState) { + const nextStates = stateMachine[this.state]; + if (nextStates && nextStates.includes(nextState)) { + this.state = nextState; + if (this.state === exports.TxnState.NO_TRANSACTION || + this.state === exports.TxnState.STARTING_TRANSACTION || + this.state === exports.TxnState.TRANSACTION_ABORTED) { + this.unpinServer(); + } + return; + } + throw new error_1.MongoRuntimeError(`Attempted illegal state transition from [${this.state}] to [${nextState}]`); + } + /** @internal */ + pinServer(server) { + if (this.isActive) { + this._pinnedServer = server; + } + } + /** @internal */ + unpinServer() { + this._pinnedServer = undefined; + } +} +exports.Transaction = Transaction; +function isTransactionCommand(command) { + return !!(command.commitTransaction || command.abortTransaction); +} +exports.isTransactionCommand = isTransactionCommand; +//# sourceMappingURL=transactions.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/transactions.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/transactions.js.map new file mode 100644 index 000000000..021aa3b28 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/transactions.js.map @@ -0,0 +1 @@ +{"version":3,"file":"transactions.js","sourceRoot":"","sources":["../src/transactions.ts"],"names":[],"mappings":";;;AACA,mCAAmE;AAEnE,iDAAmE;AAEnE,uDAAmD;AAEnD,mDAA+C;AAE/C,gBAAgB;AACH,QAAA,QAAQ,GAAG,MAAM,CAAC,MAAM,CAAC;IACpC,cAAc,EAAE,gBAAgB;IAChC,oBAAoB,EAAE,sBAAsB;IAC5C,uBAAuB,EAAE,yBAAyB;IAClD,qBAAqB,EAAE,uBAAuB;IAC9C,2BAA2B,EAAE,6BAA6B;IAC1D,mBAAmB,EAAE,qBAAqB;CAClC,CAAC,CAAC;AAKZ,MAAM,YAAY,GAAwC;IACxD,CAAC,gBAAQ,CAAC,cAAc,CAAC,EAAE,CAAC,gBAAQ,CAAC,cAAc,EAAE,gBAAQ,CAAC,oBAAoB,CAAC;IACnF,CAAC,gBAAQ,CAAC,oBAAoB,CAAC,EAAE;QAC/B,gBAAQ,CAAC,uBAAuB;QAChC,gBAAQ,CAAC,qBAAqB;QAC9B,gBAAQ,CAAC,2BAA2B;QACpC,gBAAQ,CAAC,mBAAmB;KAC7B;IACD,CAAC,gBAAQ,CAAC,uBAAuB,CAAC,EAAE;QAClC,gBAAQ,CAAC,uBAAuB;QAChC,gBAAQ,CAAC,qBAAqB;QAC9B,gBAAQ,CAAC,mBAAmB;KAC7B;IACD,CAAC,gBAAQ,CAAC,qBAAqB,CAAC,EAAE;QAChC,gBAAQ,CAAC,qBAAqB;QAC9B,gBAAQ,CAAC,2BAA2B;QACpC,gBAAQ,CAAC,oBAAoB;QAC7B,gBAAQ,CAAC,cAAc;KACxB;IACD,CAAC,gBAAQ,CAAC,mBAAmB,CAAC,EAAE,CAAC,gBAAQ,CAAC,oBAAoB,EAAE,gBAAQ,CAAC,cAAc,CAAC;IACxF,CAAC,gBAAQ,CAAC,2BAA2B,CAAC,EAAE;QACtC,gBAAQ,CAAC,2BAA2B;QACpC,gBAAQ,CAAC,cAAc;KACxB;CACF,CAAC;AAEF,MAAM,aAAa,GAAkB,IAAI,GAAG,CAAC;IAC3C,gBAAQ,CAAC,oBAAoB;IAC7B,gBAAQ,CAAC,uBAAuB;CACjC,CAAC,CAAC;AAEH,MAAM,gBAAgB,GAAkB,IAAI,GAAG,CAAC;IAC9C,gBAAQ,CAAC,qBAAqB;IAC9B,gBAAQ,CAAC,2BAA2B;IACpC,gBAAQ,CAAC,mBAAmB;CAC7B,CAAC,CAAC;AAkBH;;;GAGG;AACH,MAAa,WAAW;IAStB,qCAAqC;IACrC,YAAY,OAA4B;QACtC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QACxB,IAAI,CAAC,KAAK,GAAG,gBAAQ,CAAC,cAAc,CAAC;QACrC,IAAI,CAAC,OAAO,GAAG,EAAE,CAAC;QAElB,MAAM,YAAY,GAAG,4BAAY,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;QACvD,IAAI,YAAY,EAAE;YAChB,IAAI,YAAY,CAAC,CAAC,KAAK,CAAC,EAAE;gBACxB,MAAM,IAAI,6BAAqB,CAAC,0DAA0D,CAAC,CAAC;aAC7F;YAED,IAAI,CAAC,OAAO,CAAC,YAAY,GAAG,YAAY,CAAC;SAC1C;QAED,IAAI,OAAO,CAAC,WAAW,EAAE;YACvB,IAAI,CAAC,OAAO,CAAC,WAAW,GAAG,0BAAW,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;SAC7D;QAED,IAAI,OAAO,CAAC,cAAc,EAAE;YAC1B,IAAI,CAAC,OAAO,CAAC,cAAc,GAAG,gCAAc,CAAC,WAAW,CAAC,OAAO,CAAC,CAAC;SACnE;QAED,IAAI,OAAO,CAAC,eAAe,EAAE;YAC3B,IAAI,CAAC,OAAO,CAAC,SAAS,GAAG,OAAO,CAAC,eAAe,CAAC;SAClD;QAED,yCAAyC;QACzC,IAAI,CAAC,aAAa,GAAG,SAAS,CAAC;QAC/B,IAAI,CAAC,cAAc,GAAG,SAAS,CAAC;IAClC,CAAC;IAED,gBAAgB;IAChB,IAAI,MAAM;QACR,OAAO,IAAI,CAAC,aAAa,CAAC;IAC5B,CAAC;IAED,IAAI,aAAa;QACf,OAAO,IAAI,CAAC,cAAc,CAAC;IAC7B,CAAC;IAED,IAAI,QAAQ;QACV,OAAO,CAAC,CAAC,IAAI,CAAC,MAAM,CAAC;IACvB,CAAC;IAED,mDAAmD;IACnD,IAAI,UAAU;QACZ,OAAO,IAAI,CAAC,KAAK,KAAK,gBAAQ,CAAC,oBAAoB,CAAC;IACtD,CAAC;IAED;;OAEG;IACH,IAAI,QAAQ;QACV,OAAO,aAAa,CAAC,GAAG,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IACvC,CAAC;IAED,IAAI,WAAW;QACb,OAAO,gBAAgB,CAAC,GAAG,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IAC1C,CAAC;IACD;;;;OAIG;IACH,UAAU,CAAC,SAAmB;QAC5B,MAAM,UAAU,GAAG,YAAY,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC5C,IAAI,UAAU,IAAI,UAAU,CAAC,QAAQ,CAAC,SAAS,CAAC,EAAE;YAChD,IAAI,CAAC,KAAK,GAAG,SAAS,CAAC;YACvB,IACE,IAAI,CAAC,KAAK,KAAK,gBAAQ,CAAC,cAAc;gBACtC,IAAI,CAAC,KAAK,KAAK,gBAAQ,CAAC,oBAAoB;gBAC5C,IAAI,CAAC,KAAK,KAAK,gBAAQ,CAAC,mBAAmB,EAC3C;gBACA,IAAI,CAAC,WAAW,EAAE,CAAC;aACpB;YACD,OAAO;SACR;QAED,MAAM,IAAI,yBAAiB,CACzB,4CAA4C,IAAI,CAAC,KAAK,SAAS,SAAS,GAAG,CAC5E,CAAC;IACJ,CAAC;IAED,gBAAgB;IAChB,SAAS,CAAC,MAAc;QACtB,IAAI,IAAI,CAAC,QAAQ,EAAE;YACjB,IAAI,CAAC,aAAa,GAAG,MAAM,CAAC;SAC7B;IACH,CAAC;IAED,gBAAgB;IAChB,WAAW;QACT,IAAI,CAAC,aAAa,GAAG,SAAS,CAAC;IACjC,CAAC;CACF;AAxGD,kCAwGC;AAED,SAAgB,oBAAoB,CAAC,OAAiB;IACpD,OAAO,CAAC,CAAC,CAAC,OAAO,CAAC,iBAAiB,IAAI,OAAO,CAAC,gBAAgB,CAAC,CAAC;AACnE,CAAC;AAFD,oDAEC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/utils.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/utils.js new file mode 100644 index 000000000..2a9428b67 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/utils.js @@ -0,0 +1,1069 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.DOCUMENT_DB_MSG = exports.COSMOS_DB_CHECK = exports.DOCUMENT_DB_CHECK = exports.request = exports.matchesParentDomain = exports.parseUnsignedInteger = exports.parseInteger = exports.compareObjectId = exports.commandSupportsReadConcern = exports.shuffle = exports.supportsRetryableWrites = exports.enumToString = exports.emitWarningOnce = exports.emitWarning = exports.MONGODB_WARNING_CODE = exports.DEFAULT_PK_FACTORY = exports.HostAddress = exports.BufferPool = exports.List = exports.deepCopy = exports.isRecord = exports.setDifference = exports.isHello = exports.isSuperset = exports.resolveOptions = exports.hasAtomicOperators = exports.calculateDurationInMs = exports.now = exports.makeStateMachine = exports.errorStrictEqual = exports.arrayStrictEqual = exports.maxWireVersion = exports.uuidV4 = exports.makeCounter = exports.MongoDBCollectionNamespace = exports.MongoDBNamespace = exports.ns = exports.getTopology = exports.decorateWithExplain = exports.decorateWithReadConcern = exports.decorateWithCollation = exports.isPromiseLike = exports.applyRetryableWrites = exports.filterOptions = exports.mergeOptions = exports.isObject = exports.normalizeHintField = exports.hostMatchesWildcards = exports.isUint8Array = exports.ByteUtils = void 0; +exports.noop = exports.fileIsAccessible = exports.maybeAddIdToDocuments = exports.once = exports.randomBytes = exports.squashError = exports.promiseWithResolvers = exports.isHostMatch = exports.COSMOS_DB_MSG = void 0; +const crypto = require("crypto"); +const fs_1 = require("fs"); +const http = require("http"); +const url = require("url"); +const url_1 = require("url"); +const util_1 = require("util"); +const bson_1 = require("./bson"); +const constants_1 = require("./cmap/wire_protocol/constants"); +const constants_2 = require("./constants"); +const error_1 = require("./error"); +const read_concern_1 = require("./read_concern"); +const read_preference_1 = require("./read_preference"); +const common_1 = require("./sdam/common"); +const write_concern_1 = require("./write_concern"); +exports.ByteUtils = { + toLocalBufferType(buffer) { + return Buffer.isBuffer(buffer) + ? buffer + : Buffer.from(buffer.buffer, buffer.byteOffset, buffer.byteLength); + }, + equals(seqA, seqB) { + return exports.ByteUtils.toLocalBufferType(seqA).equals(seqB); + }, + compare(seqA, seqB) { + return exports.ByteUtils.toLocalBufferType(seqA).compare(seqB); + }, + toBase64(uint8array) { + return exports.ByteUtils.toLocalBufferType(uint8array).toString('base64'); + } +}; +/** + * Returns true if value is a Uint8Array or a Buffer + * @param value - any value that may be a Uint8Array + */ +function isUint8Array(value) { + return (value != null && + typeof value === 'object' && + Symbol.toStringTag in value && + value[Symbol.toStringTag] === 'Uint8Array'); +} +exports.isUint8Array = isUint8Array; +/** + * Determines if a connection's address matches a user provided list + * of domain wildcards. + */ +function hostMatchesWildcards(host, wildcards) { + for (const wildcard of wildcards) { + if (host === wildcard || + (wildcard.startsWith('*.') && host?.endsWith(wildcard.substring(2, wildcard.length))) || + (wildcard.startsWith('*/') && host?.endsWith(wildcard.substring(2, wildcard.length)))) { + return true; + } + } + return false; +} +exports.hostMatchesWildcards = hostMatchesWildcards; +/** + * Ensure Hint field is in a shape we expect: + * - object of index names mapping to 1 or -1 + * - just an index name + * @internal + */ +function normalizeHintField(hint) { + let finalHint = undefined; + if (typeof hint === 'string') { + finalHint = hint; + } + else if (Array.isArray(hint)) { + finalHint = {}; + hint.forEach(param => { + finalHint[param] = 1; + }); + } + else if (hint != null && typeof hint === 'object') { + finalHint = {}; + for (const name in hint) { + finalHint[name] = hint[name]; + } + } + return finalHint; +} +exports.normalizeHintField = normalizeHintField; +const TO_STRING = (object) => Object.prototype.toString.call(object); +/** + * Checks if arg is an Object: + * - **NOTE**: the check is based on the `[Symbol.toStringTag]() === 'Object'` + * @internal + */ +function isObject(arg) { + return '[object Object]' === TO_STRING(arg); +} +exports.isObject = isObject; +/** @internal */ +function mergeOptions(target, source) { + return { ...target, ...source }; +} +exports.mergeOptions = mergeOptions; +/** @internal */ +function filterOptions(options, names) { + const filterOptions = {}; + for (const name in options) { + if (names.includes(name)) { + filterOptions[name] = options[name]; + } + } + // Filtered options + return filterOptions; +} +exports.filterOptions = filterOptions; +/** + * Applies retryWrites: true to a command if retryWrites is set on the command's database. + * @internal + * + * @param target - The target command to which we will apply retryWrites. + * @param db - The database from which we can inherit a retryWrites value. + */ +function applyRetryableWrites(target, db) { + if (db && db.s.options?.retryWrites) { + target.retryWrites = true; + } + return target; +} +exports.applyRetryableWrites = applyRetryableWrites; +/** + * Applies a write concern to a command based on well defined inheritance rules, optionally + * detecting support for the write concern in the first place. + * @internal + * + * @param target - the target command we will be applying the write concern to + * @param sources - sources where we can inherit default write concerns from + * @param options - optional settings passed into a command for write concern overrides + */ +/** + * Checks if a given value is a Promise + * + * @typeParam T - The resolution type of the possible promise + * @param value - An object that could be a promise + * @returns true if the provided value is a Promise + */ +function isPromiseLike(value) { + return (value != null && + typeof value === 'object' && + 'then' in value && + // eslint-disable-next-line github/no-then + typeof value.then === 'function'); +} +exports.isPromiseLike = isPromiseLike; +/** + * Applies collation to a given command. + * @internal + * + * @param command - the command on which to apply collation + * @param target - target of command + * @param options - options containing collation settings + */ +function decorateWithCollation(command, target, options) { + const capabilities = getTopology(target).capabilities; + if (options.collation && typeof options.collation === 'object') { + if (capabilities && capabilities.commandsTakeCollation) { + command.collation = options.collation; + } + else { + throw new error_1.MongoCompatibilityError(`Current topology does not support collation`); + } + } +} +exports.decorateWithCollation = decorateWithCollation; +/** + * Applies a read concern to a given command. + * @internal + * + * @param command - the command on which to apply the read concern + * @param coll - the parent collection of the operation calling this method + */ +function decorateWithReadConcern(command, coll, options) { + if (options && options.session && options.session.inTransaction()) { + return; + } + const readConcern = Object.assign({}, command.readConcern || {}); + if (coll.s.readConcern) { + Object.assign(readConcern, coll.s.readConcern); + } + if (Object.keys(readConcern).length > 0) { + Object.assign(command, { readConcern: readConcern }); + } +} +exports.decorateWithReadConcern = decorateWithReadConcern; +/** + * Applies an explain to a given command. + * @internal + * + * @param command - the command on which to apply the explain + * @param options - the options containing the explain verbosity + */ +function decorateWithExplain(command, explain) { + if (command.explain) { + return command; + } + return { explain: command, verbosity: explain.verbosity }; +} +exports.decorateWithExplain = decorateWithExplain; +/** + * A helper function to get the topology from a given provider. Throws + * if the topology cannot be found. + * @throws MongoNotConnectedError + * @internal + */ +function getTopology(provider) { + // MongoClient or ClientSession or AbstractCursor + if ('topology' in provider && provider.topology) { + return provider.topology; + } + else if ('client' in provider && provider.client.topology) { + return provider.client.topology; + } + throw new error_1.MongoNotConnectedError('MongoClient must be connected to perform this operation'); +} +exports.getTopology = getTopology; +/** @internal */ +function ns(ns) { + return MongoDBNamespace.fromString(ns); +} +exports.ns = ns; +/** @public */ +class MongoDBNamespace { + /** + * Create a namespace object + * + * @param db - database name + * @param collection - collection name + */ + constructor(db, collection) { + this.db = db; + this.collection = collection; + this.collection = collection === '' ? undefined : collection; + } + toString() { + return this.collection ? `${this.db}.${this.collection}` : this.db; + } + withCollection(collection) { + return new MongoDBCollectionNamespace(this.db, collection); + } + static fromString(namespace) { + if (typeof namespace !== 'string' || namespace === '') { + // TODO(NODE-3483): Replace with MongoNamespaceError + throw new error_1.MongoRuntimeError(`Cannot parse namespace from "${namespace}"`); + } + const [db, ...collectionParts] = namespace.split('.'); + const collection = collectionParts.join('.'); + return new MongoDBNamespace(db, collection === '' ? undefined : collection); + } +} +exports.MongoDBNamespace = MongoDBNamespace; +/** + * @public + * + * A class representing a collection's namespace. This class enforces (through Typescript) that + * the `collection` portion of the namespace is defined and should only be + * used in scenarios where this can be guaranteed. + */ +class MongoDBCollectionNamespace extends MongoDBNamespace { + constructor(db, collection) { + super(db, collection); + this.collection = collection; + } + static fromString(namespace) { + return super.fromString(namespace); + } +} +exports.MongoDBCollectionNamespace = MongoDBCollectionNamespace; +/** @internal */ +function* makeCounter(seed = 0) { + let count = seed; + while (true) { + const newCount = count; + count += 1; + yield newCount; + } +} +exports.makeCounter = makeCounter; +/** + * Synchronously Generate a UUIDv4 + * @internal + */ +function uuidV4() { + const result = crypto.randomBytes(16); + result[6] = (result[6] & 0x0f) | 0x40; + result[8] = (result[8] & 0x3f) | 0x80; + return result; +} +exports.uuidV4 = uuidV4; +/** + * A helper function for determining `maxWireVersion` between legacy and new topology instances + * @internal + */ +function maxWireVersion(topologyOrServer) { + if (topologyOrServer) { + if (topologyOrServer.loadBalanced || topologyOrServer.serverApi?.version) { + // Since we do not have a monitor in the load balanced mode, + // we assume the load-balanced server is always pointed at the latest mongodb version. + // There is a risk that for on-prem deployments + // that don't upgrade immediately that this could alert to the + // application that a feature is available that is actually not. + // We also return the max supported wire version for serverAPI. + return constants_1.MAX_SUPPORTED_WIRE_VERSION; + } + if (topologyOrServer.hello) { + return topologyOrServer.hello.maxWireVersion; + } + if ('lastHello' in topologyOrServer && typeof topologyOrServer.lastHello === 'function') { + const lastHello = topologyOrServer.lastHello(); + if (lastHello) { + return lastHello.maxWireVersion; + } + } + if (topologyOrServer.description && + 'maxWireVersion' in topologyOrServer.description && + topologyOrServer.description.maxWireVersion != null) { + return topologyOrServer.description.maxWireVersion; + } + } + return 0; +} +exports.maxWireVersion = maxWireVersion; +/** @internal */ +function arrayStrictEqual(arr, arr2) { + if (!Array.isArray(arr) || !Array.isArray(arr2)) { + return false; + } + return arr.length === arr2.length && arr.every((elt, idx) => elt === arr2[idx]); +} +exports.arrayStrictEqual = arrayStrictEqual; +/** @internal */ +function errorStrictEqual(lhs, rhs) { + if (lhs === rhs) { + return true; + } + if (!lhs || !rhs) { + return lhs === rhs; + } + if ((lhs == null && rhs != null) || (lhs != null && rhs == null)) { + return false; + } + if (lhs.constructor.name !== rhs.constructor.name) { + return false; + } + if (lhs.message !== rhs.message) { + return false; + } + return true; +} +exports.errorStrictEqual = errorStrictEqual; +/** @internal */ +function makeStateMachine(stateTable) { + return function stateTransition(target, newState) { + const legalStates = stateTable[target.s.state]; + if (legalStates && legalStates.indexOf(newState) < 0) { + throw new error_1.MongoRuntimeError(`illegal state transition from [${target.s.state}] => [${newState}], allowed: [${legalStates}]`); + } + target.emit('stateChanged', target.s.state, newState); + target.s.state = newState; + }; +} +exports.makeStateMachine = makeStateMachine; +/** @internal */ +function now() { + const hrtime = process.hrtime(); + return Math.floor(hrtime[0] * 1000 + hrtime[1] / 1000000); +} +exports.now = now; +/** @internal */ +function calculateDurationInMs(started) { + if (typeof started !== 'number') { + return -1; + } + const elapsed = now() - started; + return elapsed < 0 ? 0 : elapsed; +} +exports.calculateDurationInMs = calculateDurationInMs; +/** @internal */ +function hasAtomicOperators(doc) { + if (Array.isArray(doc)) { + for (const document of doc) { + if (hasAtomicOperators(document)) { + return true; + } + } + return false; + } + const keys = Object.keys(doc); + return keys.length > 0 && keys[0][0] === '$'; +} +exports.hasAtomicOperators = hasAtomicOperators; +/** + * Merge inherited properties from parent into options, prioritizing values from options, + * then values from parent. + * @internal + */ +function resolveOptions(parent, options) { + const result = Object.assign({}, options, (0, bson_1.resolveBSONOptions)(options, parent)); + // Users cannot pass a readConcern/writeConcern to operations in a transaction + const session = options?.session; + if (!session?.inTransaction()) { + const readConcern = read_concern_1.ReadConcern.fromOptions(options) ?? parent?.readConcern; + if (readConcern) { + result.readConcern = readConcern; + } + const writeConcern = write_concern_1.WriteConcern.fromOptions(options) ?? parent?.writeConcern; + if (writeConcern) { + result.writeConcern = writeConcern; + } + } + const readPreference = read_preference_1.ReadPreference.fromOptions(options) ?? parent?.readPreference; + if (readPreference) { + result.readPreference = readPreference; + } + return result; +} +exports.resolveOptions = resolveOptions; +function isSuperset(set, subset) { + set = Array.isArray(set) ? new Set(set) : set; + subset = Array.isArray(subset) ? new Set(subset) : subset; + for (const elem of subset) { + if (!set.has(elem)) { + return false; + } + } + return true; +} +exports.isSuperset = isSuperset; +/** + * Checks if the document is a Hello request + * @internal + */ +function isHello(doc) { + return doc[constants_2.LEGACY_HELLO_COMMAND] || doc.hello ? true : false; +} +exports.isHello = isHello; +/** Returns the items that are uniquely in setA */ +function setDifference(setA, setB) { + const difference = new Set(setA); + for (const elem of setB) { + difference.delete(elem); + } + return difference; +} +exports.setDifference = setDifference; +const HAS_OWN = (object, prop) => Object.prototype.hasOwnProperty.call(object, prop); +function isRecord(value, requiredKeys = undefined) { + if (!isObject(value)) { + return false; + } + const ctor = value.constructor; + if (ctor && ctor.prototype) { + if (!isObject(ctor.prototype)) { + return false; + } + // Check to see if some method exists from the Object exists + if (!HAS_OWN(ctor.prototype, 'isPrototypeOf')) { + return false; + } + } + if (requiredKeys) { + const keys = Object.keys(value); + return isSuperset(keys, requiredKeys); + } + return true; +} +exports.isRecord = isRecord; +/** + * Make a deep copy of an object + * + * NOTE: This is not meant to be the perfect implementation of a deep copy, + * but instead something that is good enough for the purposes of + * command monitoring. + */ +function deepCopy(value) { + if (value == null) { + return value; + } + else if (Array.isArray(value)) { + return value.map(item => deepCopy(item)); + } + else if (isRecord(value)) { + const res = {}; + for (const key in value) { + res[key] = deepCopy(value[key]); + } + return res; + } + const ctor = value.constructor; + if (ctor) { + switch (ctor.name.toLowerCase()) { + case 'date': + return new ctor(Number(value)); + case 'map': + return new Map(value); + case 'set': + return new Set(value); + case 'buffer': + return Buffer.from(value); + } + } + return value; +} +exports.deepCopy = deepCopy; +/** + * A sequential list of items in a circularly linked list + * @remarks + * The head node is special, it is always defined and has a value of null. + * It is never "included" in the list, in that, it is not returned by pop/shift or yielded by the iterator. + * The circular linkage and always defined head node are to reduce checks for null next/prev references to zero. + * New nodes are declared as object literals with keys always in the same order: next, prev, value. + * @internal + */ +class List { + get length() { + return this.count; + } + get [Symbol.toStringTag]() { + return 'List'; + } + constructor() { + this.count = 0; + // this is carefully crafted: + // declaring a complete and consistently key ordered + // object is beneficial to the runtime optimizations + this.head = { + next: null, + prev: null, + value: null + }; + this.head.next = this.head; + this.head.prev = this.head; + } + toArray() { + return Array.from(this); + } + toString() { + return `head <=> ${this.toArray().join(' <=> ')} <=> head`; + } + *[Symbol.iterator]() { + for (const node of this.nodes()) { + yield node.value; + } + } + *nodes() { + let ptr = this.head.next; + while (ptr !== this.head) { + // Save next before yielding so that we make removing within iteration safe + const { next } = ptr; + yield ptr; + ptr = next; + } + } + /** Insert at end of list */ + push(value) { + this.count += 1; + const newNode = { + next: this.head, + prev: this.head.prev, + value + }; + this.head.prev.next = newNode; + this.head.prev = newNode; + } + /** Inserts every item inside an iterable instead of the iterable itself */ + pushMany(iterable) { + for (const value of iterable) { + this.push(value); + } + } + /** Insert at front of list */ + unshift(value) { + this.count += 1; + const newNode = { + next: this.head.next, + prev: this.head, + value + }; + this.head.next.prev = newNode; + this.head.next = newNode; + } + remove(node) { + if (node === this.head || this.length === 0) { + return null; + } + this.count -= 1; + const prevNode = node.prev; + const nextNode = node.next; + prevNode.next = nextNode; + nextNode.prev = prevNode; + return node.value; + } + /** Removes the first node at the front of the list */ + shift() { + return this.remove(this.head.next); + } + /** Removes the last node at the end of the list */ + pop() { + return this.remove(this.head.prev); + } + /** Iterates through the list and removes nodes where filter returns true */ + prune(filter) { + for (const node of this.nodes()) { + if (filter(node.value)) { + this.remove(node); + } + } + } + clear() { + this.count = 0; + this.head.next = this.head; + this.head.prev = this.head; + } + /** Returns the first item in the list, does not remove */ + first() { + // If the list is empty, value will be the head's null + return this.head.next.value; + } + /** Returns the last item in the list, does not remove */ + last() { + // If the list is empty, value will be the head's null + return this.head.prev.value; + } +} +exports.List = List; +/** + * A pool of Buffers which allow you to read them as if they were one + * @internal + */ +class BufferPool { + constructor() { + this.buffers = new List(); + this.totalByteLength = 0; + } + get length() { + return this.totalByteLength; + } + /** Adds a buffer to the internal buffer pool list */ + append(buffer) { + this.buffers.push(buffer); + this.totalByteLength += buffer.length; + } + /** + * If BufferPool contains 4 bytes or more construct an int32 from the leading bytes, + * otherwise return null. Size can be negative, caller should error check. + */ + getInt32() { + if (this.totalByteLength < 4) { + return null; + } + const firstBuffer = this.buffers.first(); + if (firstBuffer != null && firstBuffer.byteLength >= 4) { + return firstBuffer.readInt32LE(0); + } + // Unlikely case: an int32 is split across buffers. + // Use read and put the returned buffer back on top + const top4Bytes = this.read(4); + const value = top4Bytes.readInt32LE(0); + // Put it back. + this.totalByteLength += 4; + this.buffers.unshift(top4Bytes); + return value; + } + /** Reads the requested number of bytes, optionally consuming them */ + read(size) { + if (typeof size !== 'number' || size < 0) { + throw new error_1.MongoInvalidArgumentError('Argument "size" must be a non-negative number'); + } + // oversized request returns empty buffer + if (size > this.totalByteLength) { + return Buffer.alloc(0); + } + // We know we have enough, we just don't know how it is spread across chunks + // TODO(NODE-4732): alloc API should change based on raw option + const result = Buffer.allocUnsafe(size); + for (let bytesRead = 0; bytesRead < size;) { + const buffer = this.buffers.shift(); + if (buffer == null) { + break; + } + const bytesRemaining = size - bytesRead; + const bytesReadable = Math.min(bytesRemaining, buffer.byteLength); + const bytes = buffer.subarray(0, bytesReadable); + result.set(bytes, bytesRead); + bytesRead += bytesReadable; + this.totalByteLength -= bytesReadable; + if (bytesReadable < buffer.byteLength) { + this.buffers.unshift(buffer.subarray(bytesReadable)); + } + } + return result; + } +} +exports.BufferPool = BufferPool; +/** @public */ +class HostAddress { + constructor(hostString) { + this.host = undefined; + this.port = undefined; + this.socketPath = undefined; + this.isIPv6 = false; + const escapedHost = hostString.split(' ').join('%20'); // escape spaces, for socket path hosts + if (escapedHost.endsWith('.sock')) { + // heuristically determine if we're working with a domain socket + this.socketPath = decodeURIComponent(escapedHost); + return; + } + const urlString = `iLoveJS://${escapedHost}`; + let url; + try { + url = new url_1.URL(urlString); + } + catch (urlError) { + const runtimeError = new error_1.MongoRuntimeError(`Unable to parse ${escapedHost} with URL`); + runtimeError.cause = urlError; + throw runtimeError; + } + const hostname = url.hostname; + const port = url.port; + let normalized = decodeURIComponent(hostname).toLowerCase(); + if (normalized.startsWith('[') && normalized.endsWith(']')) { + this.isIPv6 = true; + normalized = normalized.substring(1, hostname.length - 1); + } + this.host = normalized.toLowerCase(); + if (typeof port === 'number') { + this.port = port; + } + else if (typeof port === 'string' && port !== '') { + this.port = Number.parseInt(port, 10); + } + else { + this.port = 27017; + } + if (this.port === 0) { + throw new error_1.MongoParseError('Invalid port (zero) with hostname'); + } + Object.freeze(this); + } + [Symbol.for('nodejs.util.inspect.custom')]() { + return this.inspect(); + } + inspect() { + return `new HostAddress('${this.toString()}')`; + } + toString() { + if (typeof this.host === 'string') { + if (this.isIPv6) { + return `[${this.host}]:${this.port}`; + } + return `${this.host}:${this.port}`; + } + return `${this.socketPath}`; + } + static fromString(s) { + return new HostAddress(s); + } + static fromHostPort(host, port) { + if (host.includes(':')) { + host = `[${host}]`; // IPv6 address + } + return HostAddress.fromString(`${host}:${port}`); + } + static fromSrvRecord({ name, port }) { + return HostAddress.fromHostPort(name, port); + } + toHostPort() { + if (this.socketPath) { + return { host: this.socketPath, port: 0 }; + } + const host = this.host ?? ''; + const port = this.port ?? 0; + return { host, port }; + } +} +exports.HostAddress = HostAddress; +exports.DEFAULT_PK_FACTORY = { + // We prefer not to rely on ObjectId having a createPk method + createPk() { + return new bson_1.ObjectId(); + } +}; +/** + * When the driver used emitWarning the code will be equal to this. + * @public + * + * @example + * ```ts + * process.on('warning', (warning) => { + * if (warning.code === MONGODB_WARNING_CODE) console.error('Ah an important warning! :)') + * }) + * ``` + */ +exports.MONGODB_WARNING_CODE = 'MONGODB DRIVER'; +/** @internal */ +function emitWarning(message) { + return process.emitWarning(message, { code: exports.MONGODB_WARNING_CODE }); +} +exports.emitWarning = emitWarning; +const emittedWarnings = new Set(); +/** + * Will emit a warning once for the duration of the application. + * Uses the message to identify if it has already been emitted + * so using string interpolation can cause multiple emits + * @internal + */ +function emitWarningOnce(message) { + if (!emittedWarnings.has(message)) { + emittedWarnings.add(message); + return emitWarning(message); + } +} +exports.emitWarningOnce = emitWarningOnce; +/** + * Takes a JS object and joins the values into a string separated by ', ' + */ +function enumToString(en) { + return Object.values(en).join(', '); +} +exports.enumToString = enumToString; +/** + * Determine if a server supports retryable writes. + * + * @internal + */ +function supportsRetryableWrites(server) { + if (!server) { + return false; + } + if (server.loadBalanced) { + // Loadbalanced topologies will always support retry writes + return true; + } + if (server.description.logicalSessionTimeoutMinutes != null) { + // that supports sessions + if (server.description.type !== common_1.ServerType.Standalone) { + // and that is not a standalone + return true; + } + } + return false; +} +exports.supportsRetryableWrites = supportsRetryableWrites; +/** + * Fisher–Yates Shuffle + * + * Reference: https://bost.ocks.org/mike/shuffle/ + * @param sequence - items to be shuffled + * @param limit - Defaults to `0`. If nonzero shuffle will slice the randomized array e.g, `.slice(0, limit)` otherwise will return the entire randomized array. + */ +function shuffle(sequence, limit = 0) { + const items = Array.from(sequence); // shallow copy in order to never shuffle the input + if (limit > items.length) { + throw new error_1.MongoRuntimeError('Limit must be less than the number of items'); + } + let remainingItemsToShuffle = items.length; + const lowerBound = limit % items.length === 0 ? 1 : items.length - limit; + while (remainingItemsToShuffle > lowerBound) { + // Pick a remaining element + const randomIndex = Math.floor(Math.random() * remainingItemsToShuffle); + remainingItemsToShuffle -= 1; + // And swap it with the current element + const swapHold = items[remainingItemsToShuffle]; + items[remainingItemsToShuffle] = items[randomIndex]; + items[randomIndex] = swapHold; + } + return limit % items.length === 0 ? items : items.slice(lowerBound); +} +exports.shuffle = shuffle; +// TODO(NODE-4936): read concern eligibility for commands should be codified in command construction +// @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.rst#read-concern +function commandSupportsReadConcern(command) { + if (command.aggregate || command.count || command.distinct || command.find || command.geoNear) { + return true; + } + return false; +} +exports.commandSupportsReadConcern = commandSupportsReadConcern; +/** + * Compare objectIds. `null` is always less + * - `+1 = oid1 is greater than oid2` + * - `-1 = oid1 is less than oid2` + * - `+0 = oid1 is equal oid2` + */ +function compareObjectId(oid1, oid2) { + if (oid1 == null && oid2 == null) { + return 0; + } + if (oid1 == null) { + return -1; + } + if (oid2 == null) { + return 1; + } + return exports.ByteUtils.compare(oid1.id, oid2.id); +} +exports.compareObjectId = compareObjectId; +function parseInteger(value) { + if (typeof value === 'number') + return Math.trunc(value); + const parsedValue = Number.parseInt(String(value), 10); + return Number.isNaN(parsedValue) ? null : parsedValue; +} +exports.parseInteger = parseInteger; +function parseUnsignedInteger(value) { + const parsedInt = parseInteger(value); + return parsedInt != null && parsedInt >= 0 ? parsedInt : null; +} +exports.parseUnsignedInteger = parseUnsignedInteger; +/** + * Determines whether a provided address matches the provided parent domain. + * + * If a DNS server were to become compromised SRV records would still need to + * advertise addresses that are under the same domain as the srvHost. + * + * @param address - The address to check against a domain + * @param srvHost - The domain to check the provided address against + * @returns Whether the provided address matches the parent domain + */ +function matchesParentDomain(address, srvHost) { + // Remove trailing dot if exists on either the resolved address or the srv hostname + const normalizedAddress = address.endsWith('.') ? address.slice(0, address.length - 1) : address; + const normalizedSrvHost = srvHost.endsWith('.') ? srvHost.slice(0, srvHost.length - 1) : srvHost; + const allCharacterBeforeFirstDot = /^.*?\./; + // Remove all characters before first dot + // Add leading dot back to string so + // an srvHostDomain = '.trusted.site' + // will not satisfy an addressDomain that endsWith '.fake-trusted.site' + const addressDomain = `.${normalizedAddress.replace(allCharacterBeforeFirstDot, '')}`; + const srvHostDomain = `.${normalizedSrvHost.replace(allCharacterBeforeFirstDot, '')}`; + return addressDomain.endsWith(srvHostDomain); +} +exports.matchesParentDomain = matchesParentDomain; +async function request(uri, options = {}) { + return await new Promise((resolve, reject) => { + const requestOptions = { + method: 'GET', + timeout: 10000, + json: true, + ...url.parse(uri), + ...options + }; + const req = http.request(requestOptions, res => { + res.setEncoding('utf8'); + let data = ''; + res.on('data', d => { + data += d; + }); + res.once('end', () => { + if (options.json === false) { + resolve(data); + return; + } + try { + const parsed = JSON.parse(data); + resolve(parsed); + } + catch { + // TODO(NODE-3483) + reject(new error_1.MongoRuntimeError(`Invalid JSON response: "${data}"`)); + } + }); + }); + req.once('timeout', () => req.destroy(new error_1.MongoNetworkTimeoutError(`Network request to ${uri} timed out after ${options.timeout} ms`))); + req.once('error', error => reject(error)); + req.end(); + }); +} +exports.request = request; +/** @internal */ +exports.DOCUMENT_DB_CHECK = /(\.docdb\.amazonaws\.com$)|(\.docdb-elastic\.amazonaws\.com$)/; +/** @internal */ +exports.COSMOS_DB_CHECK = /\.cosmos\.azure\.com$/; +/** @internal */ +exports.DOCUMENT_DB_MSG = 'You appear to be connected to a DocumentDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/documentdb'; +/** @internal */ +exports.COSMOS_DB_MSG = 'You appear to be connected to a CosmosDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/cosmosdb'; +/** @internal */ +function isHostMatch(match, host) { + return host && match.test(host.toLowerCase()) ? true : false; +} +exports.isHostMatch = isHostMatch; +function promiseWithResolvers() { + let resolve; + let reject; + const promise = new Promise(function withResolversExecutor(promiseResolve, promiseReject) { + resolve = promiseResolve; + reject = promiseReject; + }); + return { promise, resolve, reject }; +} +exports.promiseWithResolvers = promiseWithResolvers; +/** + * A noop function intended for use in preventing unhandled rejections. + * + * @example + * ```js + * const promise = myAsyncTask(); + * // eslint-disable-next-line github/no-then + * promise.then(undefined, squashError); + * ``` + */ +function squashError(_error) { + return; +} +exports.squashError = squashError; +exports.randomBytes = (0, util_1.promisify)(crypto.randomBytes); +/** + * Replicates the events.once helper. + * + * Removes unused signal logic and It **only** supports 0 or 1 argument events. + * + * @param ee - An event emitter that may emit `ev` + * @param name - An event name to wait for + */ +async function once(ee, name) { + const { promise, resolve, reject } = promiseWithResolvers(); + const onEvent = (data) => resolve(data); + const onError = (error) => reject(error); + ee.once(name, onEvent).once('error', onError); + try { + const res = await promise; + ee.off('error', onError); + return res; + } + catch (error) { + ee.off(name, onEvent); + throw error; + } +} +exports.once = once; +function maybeAddIdToDocuments(coll, docOrDocs, options) { + const forceServerObjectId = typeof options.forceServerObjectId === 'boolean' + ? options.forceServerObjectId + : coll.s.db.options?.forceServerObjectId; + // no need to modify the docs if server sets the ObjectId + if (forceServerObjectId === true) { + return docOrDocs; + } + const transform = (doc) => { + if (doc._id == null) { + doc._id = coll.s.pkFactory.createPk(); + } + return doc; + }; + return Array.isArray(docOrDocs) ? docOrDocs.map(transform) : transform(docOrDocs); +} +exports.maybeAddIdToDocuments = maybeAddIdToDocuments; +async function fileIsAccessible(fileName, mode) { + try { + await fs_1.promises.access(fileName, mode); + return true; + } + catch { + return false; + } +} +exports.fileIsAccessible = fileIsAccessible; +function noop() { + return; +} +exports.noop = noop; +//# sourceMappingURL=utils.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/utils.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/utils.js.map new file mode 100644 index 000000000..705a8f44e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/utils.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/write_concern.js b/week-3/04-course-app-hard/node_modules/mongodb/lib/write_concern.js new file mode 100644 index 000000000..a3df0b0fd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/write_concern.js @@ -0,0 +1,86 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.WriteConcern = exports.WRITE_CONCERN_KEYS = void 0; +exports.WRITE_CONCERN_KEYS = ['w', 'wtimeout', 'j', 'journal', 'fsync']; +/** + * A MongoDB WriteConcern, which describes the level of acknowledgement + * requested from MongoDB for write operations. + * @public + * + * @see https://www.mongodb.com/docs/manual/reference/write-concern/ + */ +class WriteConcern { + /** + * Constructs a WriteConcern from the write concern properties. + * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags. + * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely + * @param journal - request acknowledgment that the write operation has been written to the on-disk journal + * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version. + */ + constructor(w, wtimeoutMS, journal, fsync) { + if (w != null) { + if (!Number.isNaN(Number(w))) { + this.w = Number(w); + } + else { + this.w = w; + } + } + if (wtimeoutMS != null) { + this.wtimeoutMS = this.wtimeout = wtimeoutMS; + } + if (journal != null) { + this.journal = this.j = journal; + } + if (fsync != null) { + this.journal = this.j = fsync ? true : false; + } + } + /** + * Apply a write concern to a command document. Will modify and return the command. + */ + static apply(command, writeConcern) { + const wc = {}; + // The write concern document sent to the server has w/wtimeout/j fields. + if (writeConcern.w != null) + wc.w = writeConcern.w; + if (writeConcern.wtimeoutMS != null) + wc.wtimeout = writeConcern.wtimeoutMS; + if (writeConcern.journal != null) + wc.j = writeConcern.j; + command.writeConcern = wc; + return command; + } + /** Construct a WriteConcern given an options object. */ + static fromOptions(options, inherit) { + if (options == null) + return undefined; + inherit = inherit ?? {}; + let opts; + if (typeof options === 'string' || typeof options === 'number') { + opts = { w: options }; + } + else if (options instanceof WriteConcern) { + opts = options; + } + else { + opts = options.writeConcern; + } + const parentOpts = inherit instanceof WriteConcern ? inherit : inherit.writeConcern; + const { w = undefined, wtimeout = undefined, j = undefined, fsync = undefined, journal = undefined, wtimeoutMS = undefined } = { + ...parentOpts, + ...opts + }; + if (w != null || + wtimeout != null || + wtimeoutMS != null || + j != null || + journal != null || + fsync != null) { + return new WriteConcern(w, wtimeout ?? wtimeoutMS, j ?? journal, fsync); + } + return undefined; + } +} +exports.WriteConcern = WriteConcern; +//# sourceMappingURL=write_concern.js.map \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/lib/write_concern.js.map b/week-3/04-course-app-hard/node_modules/mongodb/lib/write_concern.js.map new file mode 100644 index 000000000..9f2f54732 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/lib/write_concern.js.map @@ -0,0 +1 @@ +{"version":3,"file":"write_concern.js","sourceRoot":"","sources":["../src/write_concern.ts"],"names":[],"mappings":";;;AAsCa,QAAA,kBAAkB,GAAG,CAAC,GAAG,EAAE,UAAU,EAAE,GAAG,EAAE,SAAS,EAAE,OAAO,CAAC,CAAC;AAY7E;;;;;;GAMG;AACH,MAAa,YAAY;IAuBvB;;;;;;OAMG;IACH,YAAY,CAAK,EAAE,UAAmB,EAAE,OAAiB,EAAE,KAAmB;QAC5E,IAAI,CAAC,IAAI,IAAI,EAAE;YACb,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,EAAE;gBAC5B,IAAI,CAAC,CAAC,GAAG,MAAM,CAAC,CAAC,CAAC,CAAC;aACpB;iBAAM;gBACL,IAAI,CAAC,CAAC,GAAG,CAAC,CAAC;aACZ;SACF;QACD,IAAI,UAAU,IAAI,IAAI,EAAE;YACtB,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC;SAC9C;QACD,IAAI,OAAO,IAAI,IAAI,EAAE;YACnB,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,CAAC,GAAG,OAAO,CAAC;SACjC;QACD,IAAI,KAAK,IAAI,IAAI,EAAE;YACjB,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,CAAC,GAAG,KAAK,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,KAAK,CAAC;SAC9C;IACH,CAAC;IAED;;OAEG;IACH,MAAM,CAAC,KAAK,CAAC,OAAiB,EAAE,YAA0B;QACxD,MAAM,EAAE,GAA+B,EAAE,CAAC;QAC1C,yEAAyE;QACzE,IAAI,YAAY,CAAC,CAAC,IAAI,IAAI;YAAE,EAAE,CAAC,CAAC,GAAG,YAAY,CAAC,CAAC,CAAC;QAClD,IAAI,YAAY,CAAC,UAAU,IAAI,IAAI;YAAE,EAAE,CAAC,QAAQ,GAAG,YAAY,CAAC,UAAU,CAAC;QAC3E,IAAI,YAAY,CAAC,OAAO,IAAI,IAAI;YAAE,EAAE,CAAC,CAAC,GAAG,YAAY,CAAC,CAAC,CAAC;QACxD,OAAO,CAAC,YAAY,GAAG,EAAE,CAAC;QAC1B,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,wDAAwD;IACxD,MAAM,CAAC,WAAW,CAChB,OAAgD,EAChD,OAA4C;QAE5C,IAAI,OAAO,IAAI,IAAI;YAAE,OAAO,SAAS,CAAC;QACtC,OAAO,GAAG,OAAO,IAAI,EAAE,CAAC;QACxB,IAAI,IAAqD,CAAC;QAC1D,IAAI,OAAO,OAAO,KAAK,QAAQ,IAAI,OAAO,OAAO,KAAK,QAAQ,EAAE;YAC9D,IAAI,GAAG,EAAE,CAAC,EAAE,OAAO,EAAE,CAAC;SACvB;aAAM,IAAI,OAAO,YAAY,YAAY,EAAE;YAC1C,IAAI,GAAG,OAAO,CAAC;SAChB;aAAM;YACL,IAAI,GAAG,OAAO,CAAC,YAAY,CAAC;SAC7B;QACD,MAAM,UAAU,GACd,OAAO,YAAY,YAAY,CAAC,CAAC,CAAC,OAAO,CAAC,CAAC,CAAC,OAAO,CAAC,YAAY,CAAC;QAEnE,MAAM,EACJ,CAAC,GAAG,SAAS,EACb,QAAQ,GAAG,SAAS,EACpB,CAAC,GAAG,SAAS,EACb,KAAK,GAAG,SAAS,EACjB,OAAO,GAAG,SAAS,EACnB,UAAU,GAAG,SAAS,EACvB,GAAG;YACF,GAAG,UAAU;YACb,GAAG,IAAI;SACR,CAAC;QACF,IACE,CAAC,IAAI,IAAI;YACT,QAAQ,IAAI,IAAI;YAChB,UAAU,IAAI,IAAI;YAClB,CAAC,IAAI,IAAI;YACT,OAAO,IAAI,IAAI;YACf,KAAK,IAAI,IAAI,EACb;YACA,OAAO,IAAI,YAAY,CAAC,CAAC,EAAE,QAAQ,IAAI,UAAU,EAAE,CAAC,IAAI,OAAO,EAAE,KAAK,CAAC,CAAC;SACzE;QACD,OAAO,SAAS,CAAC;IACnB,CAAC;CACF;AAvGD,oCAuGC"} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mongodb/mongodb.d.ts b/week-3/04-course-app-hard/node_modules/mongodb/mongodb.d.ts new file mode 100644 index 000000000..5ee316496 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/mongodb.d.ts @@ -0,0 +1,7720 @@ +/// + +import type { DeserializeOptions , ObjectIdLike , SerializeOptions } from 'bson'; +import { Binary , BSON , BSONRegExp , BSONSymbol , BSONType , Code , DBRef , Decimal128 , deserialize , Document , Double , Int32 , Long , MaxKey , MinKey , ObjectId , serialize , Timestamp , UUID } from 'bson'; +import type { SrvRecord } from 'dns'; +import { EventEmitter } from 'events'; +import type { Socket , TcpNetConnectOpts } from 'net'; +import { Readable , Writable } from 'stream'; +import type { ConnectionOptions as ConnectionOptions_2 , TLSSocket , TLSSocketOptions } from 'tls'; + +/** @public */ +export declare abstract class AbstractCursor extends TypedEventEmitter { + /* Excluded from this release type: [kId] */ + /* Excluded from this release type: [kSession] */ + /* Excluded from this release type: [kServer] */ + /* Excluded from this release type: [kNamespace] */ + /* Excluded from this release type: [kDocuments] */ + /* Excluded from this release type: [kClient] */ + /* Excluded from this release type: [kTransform] */ + /* Excluded from this release type: [kInitialized] */ + /* Excluded from this release type: [kClosed] */ + /* Excluded from this release type: [kKilled] */ + /* Excluded from this release type: [kOptions] */ + /** @event */ + static readonly CLOSE: "close"; + /* Excluded from this release type: __constructor */ + get id(): Long | undefined; + /* Excluded from this release type: isDead */ + /* Excluded from this release type: client */ + /* Excluded from this release type: server */ + get namespace(): MongoDBNamespace; + get readPreference(): ReadPreference; + get readConcern(): ReadConcern | undefined; + /* Excluded from this release type: session */ + /* Excluded from this release type: session */ + /* Excluded from this release type: cursorOptions */ + get closed(): boolean; + get killed(): boolean; + get loadBalanced(): boolean; + /** Returns current buffered documents length */ + bufferedCount(): number; + /** Returns current buffered documents */ + readBufferedDocuments(number?: number): TSchema[]; + [Symbol.asyncIterator](): AsyncGenerator; + stream(options?: CursorStreamOptions): Readable & AsyncIterable; + hasNext(): Promise; + /** Get the next available document from the cursor, returns null if no more documents are available. */ + next(): Promise; + /** + * Try to get the next available document from the cursor or `null` if an empty batch is returned + */ + tryNext(): Promise; + /** + * Iterates over all the documents for this cursor using the iterator, callback pattern. + * + * If the iterator returns `false`, iteration will stop. + * + * @param iterator - The iteration callback. + * @deprecated - Will be removed in a future release. Use for await...of instead. + */ + forEach(iterator: (doc: TSchema) => boolean | void): Promise; + close(): Promise; + /** + * Returns an array of documents. The caller is responsible for making sure that there + * is enough memory to store the results. Note that the array only contains partial + * results when this cursor had been previously accessed. In that case, + * cursor.rewind() can be used to reset the cursor. + */ + toArray(): Promise; + /** + * Add a cursor flag to the cursor + * + * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -. + * @param value - The flag boolean value. + */ + addCursorFlag(flag: CursorFlag, value: boolean): this; + /** + * Map all documents using the provided function + * If there is a transform set on the cursor, that will be called first and the result passed to + * this function's transform. + * + * @remarks + * + * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping + * function that maps values to `null` will result in the cursor closing itself before it has finished iterating + * all documents. This will **not** result in a memory leak, just surprising behavior. For example: + * + * ```typescript + * const cursor = collection.find({}); + * cursor.map(() => null); + * + * const documents = await cursor.toArray(); + * // documents is always [], regardless of how many documents are in the collection. + * ``` + * + * Other falsey values are allowed: + * + * ```typescript + * const cursor = collection.find({}); + * cursor.map(() => ''); + * + * const documents = await cursor.toArray(); + * // documents is now an array of empty strings + * ``` + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling map, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: FindCursor = coll.find(); + * const mappedCursor: FindCursor = cursor.map(doc => Object.keys(doc).length); + * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[] + * ``` + * @param transform - The mapping transformation method. + */ + map(transform: (doc: TSchema) => T): AbstractCursor; + /** + * Set the ReadPreference for the cursor. + * + * @param readPreference - The new read preference for the cursor. + */ + withReadPreference(readPreference: ReadPreferenceLike): this; + /** + * Set the ReadPreference for the cursor. + * + * @param readPreference - The new read preference for the cursor. + */ + withReadConcern(readConcern: ReadConcernLike): this; + /** + * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher) + * + * @param value - Number of milliseconds to wait before aborting the query. + */ + maxTimeMS(value: number): this; + /** + * Set the batch size for the cursor. + * + * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}. + */ + batchSize(value: number): this; + /** + * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will + * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even + * if the resultant data has already been retrieved by this cursor. + */ + rewind(): void; + /** + * Returns a new uninitialized copy of this cursor, with options matching those that have been set on the current instance + */ + abstract clone(): AbstractCursor; + /* Excluded from this release type: _initialize */ + /* Excluded from this release type: getMore */ + /* Excluded from this release type: [kInit] */ +} + +/** @public */ +export declare type AbstractCursorEvents = { + [AbstractCursor.CLOSE](): void; +}; + +/** @public */ +export declare interface AbstractCursorOptions extends BSONSerializeOptions { + session?: ClientSession; + readPreference?: ReadPreferenceLike; + readConcern?: ReadConcernLike; + /** + * Specifies the number of documents to return in each response from MongoDB + */ + batchSize?: number; + /** + * When applicable `maxTimeMS` controls the amount of time the initial command + * that constructs a cursor should take. (ex. find, aggregate, listCollections) + */ + maxTimeMS?: number; + /** + * When applicable `maxAwaitTimeMS` controls the amount of time subsequent getMores + * that a cursor uses to fetch more data should take. (ex. cursor.next()) + */ + maxAwaitTimeMS?: number; + /** + * Comment to apply to the operation. + * + * In server versions pre-4.4, 'comment' must be string. A server + * error will be thrown if any other type is provided. + * + * In server versions 4.4 and above, 'comment' can be any valid BSON type. + */ + comment?: unknown; + /** + * By default, MongoDB will automatically close a cursor when the + * client has exhausted all results in the cursor. However, for [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections) + * you may use a Tailable Cursor that remains open after the client exhausts + * the results in the initial cursor. + */ + tailable?: boolean; + /** + * If awaitData is set to true, when the cursor reaches the end of the capped collection, + * MongoDB blocks the query thread for a period of time waiting for new data to arrive. + * When new data is inserted into the capped collection, the blocked thread is signaled + * to wake up and return the next batch to the client. + */ + awaitData?: boolean; + noCursorTimeout?: boolean; + /* Excluded from this release type: timeoutMS */ +} + +/* Excluded from this release type: AbstractOperation */ + +/** @public */ +export declare type AcceptedFields = { + readonly [key in KeysOfAType]?: AssignableType; +}; + +/** @public */ +export declare type AddToSetOperators = { + $each?: Array>; +}; + +/** + * The **Admin** class is an internal class that allows convenient access to + * the admin functionality and commands for MongoDB. + * + * **ADMIN Cannot directly be instantiated** + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const admin = client.db().admin(); + * const dbInfo = await admin.listDatabases(); + * for (const db of dbInfo.databases) { + * console.log(db.name); + * } + * ``` + */ +export declare class Admin { + /* Excluded from this release type: s */ + /* Excluded from this release type: __constructor */ + /** + * Execute a command + * + * The driver will ensure the following fields are attached to the command sent to the server: + * - `lsid` - sourced from an implicit session or options.session + * - `$readPreference` - defaults to primary or can be configured by options.readPreference + * - `$db` - sourced from the name of this database + * + * If the client has a serverApi setting: + * - `apiVersion` + * - `apiStrict` + * - `apiDeprecationErrors` + * + * When in a transaction: + * - `readConcern` - sourced from readConcern set on the TransactionOptions + * - `writeConcern` - sourced from writeConcern set on the TransactionOptions + * + * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value. + * + * @param command - The command to execute + * @param options - Optional settings for the command + */ + command(command: Document, options?: RunCommandOptions): Promise; + /** + * Retrieve the server build information + * + * @param options - Optional settings for the command + */ + buildInfo(options?: CommandOperationOptions): Promise; + /** + * Retrieve the server build information + * + * @param options - Optional settings for the command + */ + serverInfo(options?: CommandOperationOptions): Promise; + /** + * Retrieve this db's server status. + * + * @param options - Optional settings for the command + */ + serverStatus(options?: CommandOperationOptions): Promise; + /** + * Ping the MongoDB server and retrieve results + * + * @param options - Optional settings for the command + */ + ping(options?: CommandOperationOptions): Promise; + /** + * Remove a user from a database + * + * @param username - The username to remove + * @param options - Optional settings for the command + */ + removeUser(username: string, options?: RemoveUserOptions): Promise; + /** + * Validate an existing collection + * + * @param collectionName - The name of the collection to validate. + * @param options - Optional settings for the command + */ + validateCollection(collectionName: string, options?: ValidateCollectionOptions): Promise; + /** + * List the available databases + * + * @param options - Optional settings for the command + */ + listDatabases(options?: ListDatabasesOptions): Promise; + /** + * Get ReplicaSet status + * + * @param options - Optional settings for the command + */ + replSetGetStatus(options?: CommandOperationOptions): Promise; +} + +/* Excluded from this release type: AdminPrivate */ + +/* Excluded from this release type: AggregateOperation */ + +/** @public */ +export declare interface AggregateOptions extends CommandOperationOptions { + /** allowDiskUse lets the server know if it can use disk to store temporary results for the aggregation (requires mongodb 2.6 \>). */ + allowDiskUse?: boolean; + /** The number of documents to return per batch. See [aggregation documentation](https://www.mongodb.com/docs/manual/reference/command/aggregate). */ + batchSize?: number; + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** Return the query as cursor, on 2.6 \> it returns as a real cursor on pre 2.6 it returns as an emulated cursor. */ + cursor?: Document; + /** specifies a cumulative time limit in milliseconds for processing operations on the cursor. MongoDB interrupts the operation at the earliest following interrupt point. */ + maxTimeMS?: number; + /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. */ + maxAwaitTimeMS?: number; + /** Specify collation. */ + collation?: CollationOptions; + /** Add an index selection hint to an aggregation command */ + hint?: Hint; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + out?: string; +} + +/** + * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB + * allowing for iteration over the results returned from the underlying query. It supports + * one by one document iteration, conversion to an array or can be iterated as a Node 4.X + * or higher stream + * @public + */ +export declare class AggregationCursor extends AbstractCursor { + /* Excluded from this release type: [kPipeline] */ + /* Excluded from this release type: [kOptions] */ + /* Excluded from this release type: __constructor */ + get pipeline(): Document[]; + clone(): AggregationCursor; + map(transform: (doc: TSchema) => T): AggregationCursor; + /* Excluded from this release type: _initialize */ + /** Execute the explain for the cursor */ + explain(verbosity?: ExplainVerbosityLike): Promise; + /** Add a stage to the aggregation pipeline + * @example + * ``` + * const documents = await users.aggregate().addStage({ $match: { name: /Mike/ } }).toArray(); + * ``` + * @example + * ``` + * const documents = await users.aggregate() + * .addStage<{ name: string }>({ $project: { name: true } }) + * .toArray(); // type of documents is { name: string }[] + * ``` + */ + addStage(stage: Document): this; + addStage(stage: Document): AggregationCursor; + /** Add a group stage to the aggregation pipeline */ + group($group: Document): AggregationCursor; + /** Add a limit stage to the aggregation pipeline */ + limit($limit: number): this; + /** Add a match stage to the aggregation pipeline */ + match($match: Document): this; + /** Add an out stage to the aggregation pipeline */ + out($out: { + db: string; + coll: string; + } | string): this; + /** + * Add a project stage to the aggregation pipeline + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type. + * You should specify a parameterized type to have assertions on your final results. + * + * @example + * ```typescript + * // Best way + * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true }); + * // Flexible way + * const docs: AggregationCursor = cursor.project({ _id: 0, a: true }); + * ``` + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling project, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]); + * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true }); + * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray(); + * + * // or always use chaining and save the final cursor + * + * const cursor = coll.aggregate().project<{ a: string }>({ + * _id: 0, + * a: { $convert: { input: '$a', to: 'string' } + * }}); + * ``` + */ + project($project: Document): AggregationCursor; + /** Add a lookup stage to the aggregation pipeline */ + lookup($lookup: Document): this; + /** Add a redact stage to the aggregation pipeline */ + redact($redact: Document): this; + /** Add a skip stage to the aggregation pipeline */ + skip($skip: number): this; + /** Add a sort stage to the aggregation pipeline */ + sort($sort: Sort): this; + /** Add a unwind stage to the aggregation pipeline */ + unwind($unwind: Document | string): this; + /** Add a geoNear stage to the aggregation pipeline */ + geoNear($geoNear: Document): this; +} + +/** @public */ +export declare interface AggregationCursorOptions extends AbstractCursorOptions, AggregateOptions { +} + +/** + * It is possible to search using alternative types in mongodb e.g. + * string types can be searched using a regex in mongo + * array types can be searched using their element type + * @public + */ +export declare type AlternativeType = T extends ReadonlyArray ? T | RegExpOrString : RegExpOrString; + +/** @public */ +export declare type AnyBulkWriteOperation = { + insertOne: InsertOneModel; +} | { + replaceOne: ReplaceOneModel; +} | { + updateOne: UpdateOneModel; +} | { + updateMany: UpdateManyModel; +} | { + deleteOne: DeleteOneModel; +} | { + deleteMany: DeleteManyModel; +}; + +/** @public */ +export declare type AnyError = MongoError | Error; + +/** @public */ +export declare type ArrayElement = Type extends ReadonlyArray ? Item : never; + +/** @public */ +export declare type ArrayOperator = { + $each?: Array>; + $slice?: number; + $position?: number; + $sort?: Sort; +}; + +/** @public */ +export declare interface Auth { + /** The username for auth */ + username?: string; + /** The password for auth */ + password?: string; +} + +/* Excluded from this release type: AuthContext */ + +/** @public */ +export declare const AuthMechanism: Readonly<{ + readonly MONGODB_AWS: "MONGODB-AWS"; + readonly MONGODB_CR: "MONGODB-CR"; + readonly MONGODB_DEFAULT: "DEFAULT"; + readonly MONGODB_GSSAPI: "GSSAPI"; + readonly MONGODB_PLAIN: "PLAIN"; + readonly MONGODB_SCRAM_SHA1: "SCRAM-SHA-1"; + readonly MONGODB_SCRAM_SHA256: "SCRAM-SHA-256"; + readonly MONGODB_X509: "MONGODB-X509"; + /** @experimental */ + readonly MONGODB_OIDC: "MONGODB-OIDC"; +}>; + +/** @public */ +export declare type AuthMechanism = (typeof AuthMechanism)[keyof typeof AuthMechanism]; + +/** @public */ +export declare interface AuthMechanismProperties extends Document { + SERVICE_HOST?: string; + SERVICE_NAME?: string; + SERVICE_REALM?: string; + CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue; + AWS_SESSION_TOKEN?: string; + /** @experimental */ + REQUEST_TOKEN_CALLBACK?: OIDCRequestFunction; + /** @experimental */ + REFRESH_TOKEN_CALLBACK?: OIDCRefreshFunction; + /** @experimental */ + PROVIDER_NAME?: 'aws' | 'azure'; + /** @experimental */ + ALLOWED_HOSTS?: string[]; + /** @experimental */ + TOKEN_AUDIENCE?: string; +} + +/* Excluded from this release type: AuthProvider */ + +/* Excluded from this release type: AutoEncrypter */ + +/** + * @public + * + * Extra options related to the mongocryptd process + * \* _Available in MongoDB 6.0 or higher._ + */ +export declare type AutoEncryptionExtraOptions = NonNullable; + +/** @public */ +export declare const AutoEncryptionLoggerLevel: Readonly<{ + readonly FatalError: 0; + readonly Error: 1; + readonly Warning: 2; + readonly Info: 3; + readonly Trace: 4; +}>; + +/** + * @public + * The level of severity of the log message + * + * | Value | Level | + * |-------|-------| + * | 0 | Fatal Error | + * | 1 | Error | + * | 2 | Warning | + * | 3 | Info | + * | 4 | Trace | + */ +export declare type AutoEncryptionLoggerLevel = (typeof AutoEncryptionLoggerLevel)[keyof typeof AutoEncryptionLoggerLevel]; + +/** @public */ +export declare interface AutoEncryptionOptions { + /* Excluded from this release type: metadataClient */ + /** A `MongoClient` used to fetch keys from a key vault */ + keyVaultClient?: MongoClient; + /** The namespace where keys are stored in the key vault */ + keyVaultNamespace?: string; + /** Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. */ + kmsProviders?: { + /** Configuration options for using 'aws' as your KMS provider */ + aws?: { + /** The access key used for the AWS KMS provider */ + accessKeyId: string; + /** The secret access key used for the AWS KMS provider */ + secretAccessKey: string; + /** + * An optional AWS session token that will be used as the + * X-Amz-Security-Token header for AWS requests. + */ + sessionToken?: string; + } | Record; + /** Configuration options for using 'local' as your KMS provider */ + local?: { + /** + * The master key used to encrypt/decrypt data keys. + * A 96-byte long Buffer or base64 encoded string. + */ + key: Buffer | string; + }; + /** Configuration options for using 'azure' as your KMS provider */ + azure?: { + /** The tenant ID identifies the organization for the account */ + tenantId: string; + /** The client ID to authenticate a registered application */ + clientId: string; + /** The client secret to authenticate a registered application */ + clientSecret: string; + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * This is optional, and only needed if customer is using a non-commercial Azure instance + * (e.g. a government or China account, which use different URLs). + * Defaults to "login.microsoftonline.com" + */ + identityPlatformEndpoint?: string | undefined; + } | { + /** + * If present, an access token to authenticate with Azure. + */ + accessToken: string; + } | Record; + /** Configuration options for using 'gcp' as your KMS provider */ + gcp?: { + /** The service account email to authenticate */ + email: string; + /** A PKCS#8 encrypted key. This can either be a base64 string or a binary representation */ + privateKey: string | Buffer; + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * Defaults to "oauth2.googleapis.com" + */ + endpoint?: string | undefined; + } | { + /** + * If present, an access token to authenticate with GCP. + */ + accessToken: string; + } | Record; + /** + * Configuration options for using 'kmip' as your KMS provider + */ + kmip?: { + /** + * The output endpoint string. + * The endpoint consists of a hostname and port separated by a colon. + * E.g. "example.com:123". A port is always present. + */ + endpoint?: string; + }; + }; + /** + * A map of namespaces to a local JSON schema for encryption + * + * **NOTE**: Supplying options.schemaMap provides more security than relying on JSON Schemas obtained from the server. + * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending decrypted data that should be encrypted. + * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption. + * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error. + */ + schemaMap?: Document; + /** Supply a schema for the encrypted fields in the document */ + encryptedFieldsMap?: Document; + /** Allows the user to bypass auto encryption, maintaining implicit decryption */ + bypassAutoEncryption?: boolean; + /** Allows users to bypass query analysis */ + bypassQueryAnalysis?: boolean; + options?: { + /** An optional hook to catch logging messages from the underlying encryption engine */ + logger?: (level: AutoEncryptionLoggerLevel, message: string) => void; + }; + extraOptions?: { + /** + * A local process the driver communicates with to determine how to encrypt values in a command. + * Defaults to "mongodb://%2Fvar%2Fmongocryptd.sock" if domain sockets are available or "mongodb://localhost:27020" otherwise + */ + mongocryptdURI?: string; + /** If true, autoEncryption will not attempt to spawn a mongocryptd before connecting */ + mongocryptdBypassSpawn?: boolean; + /** The path to the mongocryptd executable on the system */ + mongocryptdSpawnPath?: string; + /** Command line arguments to use when auto-spawning a mongocryptd */ + mongocryptdSpawnArgs?: string[]; + /** + * Full path to a MongoDB Crypt shared library to be used (instead of mongocryptd). + * + * This needs to be the path to the file itself, not a directory. + * It can be an absolute or relative path. If the path is relative and + * its first component is `$ORIGIN`, it will be replaced by the directory + * containing the mongodb-client-encryption native addon file. Otherwise, + * the path will be interpreted relative to the current working directory. + * + * Currently, loading different MongoDB Crypt shared library files from different + * MongoClients in the same process is not supported. + * + * If this option is provided and no MongoDB Crypt shared library could be loaded + * from the specified location, creating the MongoClient will fail. + * + * If this option is not provided and `cryptSharedLibRequired` is not specified, + * the AutoEncrypter will attempt to spawn and/or use mongocryptd according + * to the mongocryptd-specific `extraOptions` options. + * + * Specifying a path prevents mongocryptd from being used as a fallback. + * + * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher. + */ + cryptSharedLibPath?: string; + /** + * If specified, never use mongocryptd and instead fail when the MongoDB Crypt + * shared library could not be loaded. + * + * This is always true when `cryptSharedLibPath` is specified. + * + * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher. + */ + cryptSharedLibRequired?: boolean; + /* Excluded from this release type: cryptSharedLibSearchPaths */ + }; + proxyOptions?: ProxyOptions; + /** The TLS options to use connecting to the KMS provider */ + tlsOptions?: CSFLEKMSTlsOptions; +} + +/** + * @public + * Configuration options for making an AWS encryption key + */ +export declare interface AWSEncryptionKeyOptions { + /** + * The AWS region of the KMS + */ + region: string; + /** + * The Amazon Resource Name (ARN) to the AWS customer master key (CMK) + */ + key: string; + /** + * An alternate host to send KMS requests to. May include port number. + */ + endpoint?: string | undefined; +} + +/** + * @public + * Configuration options for making an Azure encryption key + */ +export declare interface AzureEncryptionKeyOptions { + /** + * Key name + */ + keyName: string; + /** + * Key vault URL, typically `.vault.azure.net` + */ + keyVaultEndpoint: string; + /** + * Key version + */ + keyVersion?: string | undefined; +} + +/** + * Keeps the state of a unordered batch so we can rewrite the results + * correctly after command execution + * + * @public + */ +export declare class Batch { + originalZeroIndex: number; + currentIndex: number; + originalIndexes: number[]; + batchType: BatchType; + operations: T[]; + size: number; + sizeBytes: number; + constructor(batchType: BatchType, originalZeroIndex: number); +} + +/** @public */ +export declare const BatchType: Readonly<{ + readonly INSERT: 1; + readonly UPDATE: 2; + readonly DELETE: 3; +}>; + +/** @public */ +export declare type BatchType = (typeof BatchType)[keyof typeof BatchType]; + +export { Binary } + +/** @public */ +export declare type BitwiseFilter = number /** numeric bit mask */ | Binary /** BinData bit mask */ | ReadonlyArray; + +export { BSON } + +export { BSONRegExp } + +/** + * BSON Serialization options. + * @public + */ +export declare interface BSONSerializeOptions extends Omit, Omit { + /** + * Enabling the raw option will return a [Node.js Buffer](https://nodejs.org/api/buffer.html) + * which is allocated using [allocUnsafe API](https://nodejs.org/api/buffer.html#static-method-bufferallocunsafesize). + * See this section from the [Node.js Docs here](https://nodejs.org/api/buffer.html#what-makes-bufferallocunsafe-and-bufferallocunsafeslow-unsafe) + * for more detail about what "unsafe" refers to in this context. + * If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate + * your own buffer and clone the contents: + * + * @example + * ```ts + * const raw = await collection.findOne({}, { raw: true }); + * const myBuffer = Buffer.alloc(raw.byteLength); + * myBuffer.set(raw, 0); + * // Only save and use `myBuffer` beyond this point + * ``` + * + * @remarks + * Please note there is a known limitation where this option cannot be used at the MongoClient level (see [NODE-3946](https://jira.mongodb.org/browse/NODE-3946)). + * It does correctly work at `Db`, `Collection`, and per operation the same as other BSON options work. + */ + raw?: boolean; + /** Enable utf8 validation when deserializing BSON documents. Defaults to true. */ + enableUtf8Validation?: boolean; +} + +export { BSONSymbol } + +export { BSONType } + +/** @public */ +export declare type BSONTypeAlias = keyof typeof BSONType; + +/* Excluded from this release type: BufferPool */ + +/** @public */ +export declare abstract class BulkOperationBase { + private collection; + isOrdered: boolean; + /* Excluded from this release type: s */ + operationId?: number; + /* Excluded from this release type: __constructor */ + /** + * Add a single insert document to the bulk operation + * + * @example + * ```ts + * const bulkOp = collection.initializeOrderedBulkOp(); + * + * // Adds three inserts to the bulkOp. + * bulkOp + * .insert({ a: 1 }) + * .insert({ b: 2 }) + * .insert({ c: 3 }); + * await bulkOp.execute(); + * ``` + */ + insert(document: Document): BulkOperationBase; + /** + * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne. + * Returns a builder object used to complete the definition of the operation. + * + * @example + * ```ts + * const bulkOp = collection.initializeOrderedBulkOp(); + * + * // Add an updateOne to the bulkOp + * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } }); + * + * // Add an updateMany to the bulkOp + * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } }); + * + * // Add an upsert + * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } }); + * + * // Add a deletion + * bulkOp.find({ g: 7 }).deleteOne(); + * + * // Add a multi deletion + * bulkOp.find({ h: 8 }).delete(); + * + * // Add a replaceOne + * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }}); + * + * // Update using a pipeline (requires Mongodb 4.2 or higher) + * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([ + * { $set: { total: { $sum: [ '$y', '$z' ] } } } + * ]); + * + * // All of the ops will now be executed + * await bulkOp.execute(); + * ``` + */ + find(selector: Document): FindOperators; + /** Specifies a raw operation to perform in the bulk write. */ + raw(op: AnyBulkWriteOperation): this; + get bsonOptions(): BSONSerializeOptions; + get writeConcern(): WriteConcern | undefined; + get batches(): Batch[]; + execute(options?: BulkWriteOptions): Promise; + /* Excluded from this release type: handleWriteError */ + abstract addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this; + private shouldForceServerObjectId; +} + +/* Excluded from this release type: BulkOperationPrivate */ + +/* Excluded from this release type: BulkResult */ + +/** @public */ +export declare interface BulkWriteOperationError { + index: number; + code: number; + errmsg: string; + errInfo: Document; + op: Document | UpdateStatement | DeleteStatement; +} + +/** @public */ +export declare interface BulkWriteOptions extends CommandOperationOptions { + /** + * Allow driver to bypass schema validation. + * @defaultValue `false` - documents will be validated by default + **/ + bypassDocumentValidation?: boolean; + /** + * If true, when an insert fails, don't execute the remaining writes. + * If false, continue with remaining inserts when one fails. + * @defaultValue `true` - inserts are ordered by default + */ + ordered?: boolean; + /** + * Force server to assign _id values instead of driver. + * @defaultValue `false` - the driver generates `_id` fields by default + **/ + forceServerObjectId?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** + * @public + * The result of a bulk write. + */ +export declare class BulkWriteResult { + private readonly result; + /** Number of documents inserted. */ + readonly insertedCount: number; + /** Number of documents matched for update. */ + readonly matchedCount: number; + /** Number of documents modified. */ + readonly modifiedCount: number; + /** Number of documents deleted. */ + readonly deletedCount: number; + /** Number of documents upserted. */ + readonly upsertedCount: number; + /** Upserted document generated Id's, hash key is the index of the originating operation */ + readonly upsertedIds: { + [key: number]: any; + }; + /** Inserted document generated Id's, hash key is the index of the originating operation */ + readonly insertedIds: { + [key: number]: any; + }; + private static generateIdMap; + /* Excluded from this release type: __constructor */ + /** Evaluates to true if the bulk operation correctly executes */ + get ok(): number; + /* Excluded from this release type: getSuccessfullyInsertedIds */ + /** Returns the upserted id at the given index */ + getUpsertedIdAt(index: number): Document | undefined; + /** Returns raw internal result */ + getRawResponse(): Document; + /** Returns true if the bulk operation contains a write error */ + hasWriteErrors(): boolean; + /** Returns the number of write errors off the bulk operation */ + getWriteErrorCount(): number; + /** Returns a specific write error object */ + getWriteErrorAt(index: number): WriteError | undefined; + /** Retrieve all write errors */ + getWriteErrors(): WriteError[]; + /** Retrieve the write concern error if one exists */ + getWriteConcernError(): WriteConcernError | undefined; + toString(): string; + isOk(): boolean; +} + +/** + * MongoDB Driver style callback + * @public + */ +export declare type Callback = (error?: AnyError, result?: T) => void; + +/** @public */ +export declare class CancellationToken extends TypedEventEmitter<{ + cancel(): void; +}> { +} + +/** + * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}. + * @public + */ +export declare class ChangeStream> extends TypedEventEmitter> { + pipeline: Document[]; + /** + * @remarks WriteConcern can still be present on the options because + * we inherit options from the client/db/collection. The + * key must be present on the options in order to delete it. + * This allows typescript to delete the key but will + * not allow a writeConcern to be assigned as a property on options. + */ + options: ChangeStreamOptions & { + writeConcern?: never; + }; + parent: MongoClient | Db | Collection; + namespace: MongoDBNamespace; + type: symbol; + /* Excluded from this release type: cursor */ + streamOptions?: CursorStreamOptions; + /* Excluded from this release type: [kCursorStream] */ + /* Excluded from this release type: [kClosed] */ + /* Excluded from this release type: [kMode] */ + /** @event */ + static readonly RESPONSE: "response"; + /** @event */ + static readonly MORE: "more"; + /** @event */ + static readonly INIT: "init"; + /** @event */ + static readonly CLOSE: "close"; + /** + * Fired for each new matching change in the specified namespace. Attaching a `change` + * event listener to a Change Stream will switch the stream into flowing mode. Data will + * then be passed as soon as it is available. + * @event + */ + static readonly CHANGE: "change"; + /** @event */ + static readonly END: "end"; + /** @event */ + static readonly ERROR: "error"; + /** + * Emitted each time the change stream stores a new resume token. + * @event + */ + static readonly RESUME_TOKEN_CHANGED: "resumeTokenChanged"; + /* Excluded from this release type: __constructor */ + /* Excluded from this release type: cursorStream */ + /** The cached resume token that is used to resume after the most recently returned change. */ + get resumeToken(): ResumeToken; + /** Check if there is any document still available in the Change Stream */ + hasNext(): Promise; + /** Get the next available document from the Change Stream. */ + next(): Promise; + /** + * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned + */ + tryNext(): Promise; + [Symbol.asyncIterator](): AsyncGenerator; + /** Is the cursor closed */ + get closed(): boolean; + /** Close the Change Stream */ + close(): Promise; + /** + * Return a modified Readable stream including a possible transform method. + * + * NOTE: When using a Stream to process change stream events, the stream will + * NOT automatically resume in the case a resumable error is encountered. + * + * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed + */ + stream(options?: CursorStreamOptions): Readable & AsyncIterable; + /* Excluded from this release type: _setIsEmitter */ + /* Excluded from this release type: _setIsIterator */ + /* Excluded from this release type: _createChangeStreamCursor */ + /* Excluded from this release type: _closeEmitterModeWithError */ + /* Excluded from this release type: _streamEvents */ + /* Excluded from this release type: _endStream */ + /* Excluded from this release type: _processChange */ + /* Excluded from this release type: _processErrorStreamMode */ + /* Excluded from this release type: _processErrorIteratorMode */ +} + +/* Excluded from this release type: ChangeStreamAggregateRawResult */ + +/** + * Only present when the `showExpandedEvents` flag is enabled. + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/modify/#mongodb-data-modify + */ +export declare interface ChangeStreamCollModDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'modify'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/create/#mongodb-data-create + */ +export declare interface ChangeStreamCreateDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'create'; +} + +/** + * Only present when the `showExpandedEvents` flag is enabled. + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/createIndexes/#mongodb-data-createIndexes + */ +export declare interface ChangeStreamCreateIndexDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'createIndexes'; +} + +/* Excluded from this release type: ChangeStreamCursor */ + +/* Excluded from this release type: ChangeStreamCursorOptions */ + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#delete-event + */ +export declare interface ChangeStreamDeleteDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'delete'; + /** Namespace the delete event occurred on */ + ns: ChangeStreamNameSpace; + /** + * Contains the pre-image of the modified or deleted document if the + * pre-image is available for the change event and either 'required' or + * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option + * when creating the change stream. If 'whenAvailable' was specified but the + * pre-image is unavailable, this will be explicitly set to null. + */ + fullDocumentBeforeChange?: TSchema; +} + +/** @public */ +export declare type ChangeStreamDocument = ChangeStreamInsertDocument | ChangeStreamUpdateDocument | ChangeStreamReplaceDocument | ChangeStreamDeleteDocument | ChangeStreamDropDocument | ChangeStreamRenameDocument | ChangeStreamDropDatabaseDocument | ChangeStreamInvalidateDocument | ChangeStreamCreateIndexDocument | ChangeStreamCreateDocument | ChangeStreamCollModDocument | ChangeStreamDropIndexDocument | ChangeStreamShardCollectionDocument | ChangeStreamReshardCollectionDocument | ChangeStreamRefineCollectionShardKeyDocument; + +/** @public */ +export declare interface ChangeStreamDocumentCollectionUUID { + /** + * The UUID (Binary subtype 4) of the collection that the operation was performed on. + * + * Only present when the `showExpandedEvents` flag is enabled. + * + * **NOTE:** collectionUUID will be converted to a NodeJS Buffer if the promoteBuffers + * flag is enabled. + * + * @sinceServerVersion 6.1.0 + */ + collectionUUID: Binary; +} + +/** @public */ +export declare interface ChangeStreamDocumentCommon { + /** + * The id functions as an opaque token for use when resuming an interrupted + * change stream. + */ + _id: ResumeToken; + /** + * The timestamp from the oplog entry associated with the event. + * For events that happened as part of a multi-document transaction, the associated change stream + * notifications will have the same clusterTime value, namely the time when the transaction was committed. + * On a sharded cluster, events that occur on different shards can have the same clusterTime but be + * associated with different transactions or even not be associated with any transaction. + * To identify events for a single transaction, you can use the combination of lsid and txnNumber in the change stream event document. + */ + clusterTime?: Timestamp; + /** + * The transaction number. + * Only present if the operation is part of a multi-document transaction. + * + * **NOTE:** txnNumber can be a Long if promoteLongs is set to false + */ + txnNumber?: number; + /** + * The identifier for the session associated with the transaction. + * Only present if the operation is part of a multi-document transaction. + */ + lsid?: ServerSessionId; + /** + * When the change stream's backing aggregation pipeline contains the $changeStreamSplitLargeEvent + * stage, events larger than 16MB will be split into multiple events and contain the + * following information about which fragment the current event is. + */ + splitEvent?: ChangeStreamSplitEvent; +} + +/** @public */ +export declare interface ChangeStreamDocumentKey { + /** + * For unsharded collections this contains a single field `_id`. + * For sharded collections, this will contain all the components of the shard key + */ + documentKey: { + _id: InferIdType; + [shardKey: string]: any; + }; +} + +/** @public */ +export declare interface ChangeStreamDocumentOperationDescription { + /** + * An description of the operation. + * + * Only present when the `showExpandedEvents` flag is enabled. + * + * @sinceServerVersion 6.1.0 + */ + operationDescription?: Document; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#dropdatabase-event + */ +export declare interface ChangeStreamDropDatabaseDocument extends ChangeStreamDocumentCommon { + /** Describes the type of operation represented in this change notification */ + operationType: 'dropDatabase'; + /** The database dropped */ + ns: { + db: string; + }; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#drop-event + */ +export declare interface ChangeStreamDropDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'drop'; + /** Namespace the drop event occurred on */ + ns: ChangeStreamNameSpace; +} + +/** + * Only present when the `showExpandedEvents` flag is enabled. + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/dropIndexes/#mongodb-data-dropIndexes + */ +export declare interface ChangeStreamDropIndexDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'dropIndexes'; +} + +/** @public */ +export declare type ChangeStreamEvents> = { + resumeTokenChanged(token: ResumeToken): void; + init(response: any): void; + more(response?: any): void; + response(): void; + end(): void; + error(error: Error): void; + change(change: TChange): void; +} & AbstractCursorEvents; + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#insert-event + */ +export declare interface ChangeStreamInsertDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'insert'; + /** This key will contain the document being inserted */ + fullDocument: TSchema; + /** Namespace the insert event occurred on */ + ns: ChangeStreamNameSpace; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#invalidate-event + */ +export declare interface ChangeStreamInvalidateDocument extends ChangeStreamDocumentCommon { + /** Describes the type of operation represented in this change notification */ + operationType: 'invalidate'; +} + +/** @public */ +export declare interface ChangeStreamNameSpace { + db: string; + coll: string; +} + +/** + * Options that can be passed to a ChangeStream. Note that startAfter, resumeAfter, and startAtOperationTime are all mutually exclusive, and the server will error if more than one is specified. + * @public + */ +export declare interface ChangeStreamOptions extends Omit { + /** + * Allowed values: 'updateLookup', 'whenAvailable', 'required'. + * + * When set to 'updateLookup', the change notification for partial updates + * will include both a delta describing the changes to the document as well + * as a copy of the entire document that was changed from some time after + * the change occurred. + * + * When set to 'whenAvailable', configures the change stream to return the + * post-image of the modified document for replace and update change events + * if the post-image for this event is available. + * + * When set to 'required', the same behavior as 'whenAvailable' except that + * an error is raised if the post-image is not available. + */ + fullDocument?: string; + /** + * Allowed values: 'whenAvailable', 'required', 'off'. + * + * The default is to not send a value, which is equivalent to 'off'. + * + * When set to 'whenAvailable', configures the change stream to return the + * pre-image of the modified document for replace, update, and delete change + * events if it is available. + * + * When set to 'required', the same behavior as 'whenAvailable' except that + * an error is raised if the pre-image is not available. + */ + fullDocumentBeforeChange?: string; + /** The maximum amount of time for the server to wait on new documents to satisfy a change stream query. */ + maxAwaitTimeMS?: number; + /** + * Allows you to start a changeStream after a specified event. + * @see https://www.mongodb.com/docs/manual/changeStreams/#resumeafter-for-change-streams + */ + resumeAfter?: ResumeToken; + /** + * Similar to resumeAfter, but will allow you to start after an invalidated event. + * @see https://www.mongodb.com/docs/manual/changeStreams/#startafter-for-change-streams + */ + startAfter?: ResumeToken; + /** Will start the changeStream after the specified operationTime. */ + startAtOperationTime?: OperationTime; + /** + * The number of documents to return per batch. + * @see https://www.mongodb.com/docs/manual/reference/command/aggregate + */ + batchSize?: number; + /** + * When enabled, configures the change stream to include extra change events. + * + * - createIndexes + * - dropIndexes + * - modify + * - create + * - shardCollection + * - reshardCollection + * - refineCollectionShardKey + */ + showExpandedEvents?: boolean; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/refineCollectionShardKey/#mongodb-data-refineCollectionShardKey + */ +export declare interface ChangeStreamRefineCollectionShardKeyDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'refineCollectionShardKey'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#rename-event + */ +export declare interface ChangeStreamRenameDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'rename'; + /** The new name for the `ns.coll` collection */ + to: { + db: string; + coll: string; + }; + /** The "from" namespace that the rename occurred on */ + ns: ChangeStreamNameSpace; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#replace-event + */ +export declare interface ChangeStreamReplaceDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey { + /** Describes the type of operation represented in this change notification */ + operationType: 'replace'; + /** The fullDocument of a replace event represents the document after the insert of the replacement document */ + fullDocument: TSchema; + /** Namespace the replace event occurred on */ + ns: ChangeStreamNameSpace; + /** + * Contains the pre-image of the modified or deleted document if the + * pre-image is available for the change event and either 'required' or + * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option + * when creating the change stream. If 'whenAvailable' was specified but the + * pre-image is unavailable, this will be explicitly set to null. + */ + fullDocumentBeforeChange?: TSchema; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/reshardCollection/#mongodb-data-reshardCollection + */ +export declare interface ChangeStreamReshardCollectionDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'reshardCollection'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/shardCollection/#mongodb-data-shardCollection + */ +export declare interface ChangeStreamShardCollectionDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentCollectionUUID, ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'shardCollection'; +} + +/** @public */ +export declare interface ChangeStreamSplitEvent { + /** Which fragment of the change this is. */ + fragment: number; + /** The total number of fragments. */ + of: number; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#update-event + */ +export declare interface ChangeStreamUpdateDocument extends ChangeStreamDocumentCommon, ChangeStreamDocumentKey, ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'update'; + /** + * This is only set if `fullDocument` is set to `'updateLookup'` + * Contains the point-in-time post-image of the modified document if the + * post-image is available and either 'required' or 'whenAvailable' was + * specified for the 'fullDocument' option when creating the change stream. + */ + fullDocument?: TSchema; + /** Contains a description of updated and removed fields in this operation */ + updateDescription: UpdateDescription; + /** Namespace the update event occurred on */ + ns: ChangeStreamNameSpace; + /** + * Contains the pre-image of the modified or deleted document if the + * pre-image is available for the change event and either 'required' or + * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option + * when creating the change stream. If 'whenAvailable' was specified but the + * pre-image is unavailable, this will be explicitly set to null. + */ + fullDocumentBeforeChange?: TSchema; +} + +/** + * @public + * The public interface for explicit in-use encryption + */ +export declare class ClientEncryption { + /* Excluded from this release type: _client */ + /* Excluded from this release type: _keyVaultNamespace */ + /* Excluded from this release type: _keyVaultClient */ + /* Excluded from this release type: _proxyOptions */ + /* Excluded from this release type: _tlsOptions */ + /* Excluded from this release type: _kmsProviders */ + /* Excluded from this release type: _mongoCrypt */ + /* Excluded from this release type: getMongoCrypt */ + /** + * Create a new encryption instance + * + * @example + * ```ts + * new ClientEncryption(mongoClient, { + * keyVaultNamespace: 'client.encryption', + * kmsProviders: { + * local: { + * key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer + * } + * } + * }); + * ``` + * + * @example + * ```ts + * new ClientEncryption(mongoClient, { + * keyVaultNamespace: 'client.encryption', + * kmsProviders: { + * aws: { + * accessKeyId: AWS_ACCESS_KEY, + * secretAccessKey: AWS_SECRET_KEY + * } + * } + * }); + * ``` + */ + constructor(client: MongoClient, options: ClientEncryptionOptions); + /** + * Creates a data key used for explicit encryption and inserts it into the key vault namespace + * + * @example + * ```ts + * // Using async/await to create a local key + * const dataKeyId = await clientEncryption.createDataKey('local'); + * ``` + * + * @example + * ```ts + * // Using async/await to create an aws key + * const dataKeyId = await clientEncryption.createDataKey('aws', { + * masterKey: { + * region: 'us-east-1', + * key: 'xxxxxxxxxxxxxx' // CMK ARN here + * } + * }); + * ``` + * + * @example + * ```ts + * // Using async/await to create an aws key with a keyAltName + * const dataKeyId = await clientEncryption.createDataKey('aws', { + * masterKey: { + * region: 'us-east-1', + * key: 'xxxxxxxxxxxxxx' // CMK ARN here + * }, + * keyAltNames: [ 'mySpecialKey' ] + * }); + * ``` + */ + createDataKey(provider: ClientEncryptionDataKeyProvider, options?: ClientEncryptionCreateDataKeyProviderOptions): Promise; + /** + * Searches the keyvault for any data keys matching the provided filter. If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options. + * + * If no matches are found, then no bulk write is performed. + * + * @example + * ```ts + * // rewrapping all data data keys (using a filter that matches all documents) + * const filter = {}; + * + * const result = await clientEncryption.rewrapManyDataKey(filter); + * if (result.bulkWriteResult != null) { + * // keys were re-wrapped, results will be available in the bulkWrite object. + * } + * ``` + * + * @example + * ```ts + * // attempting to rewrap all data keys with no matches + * const filter = { _id: new Binary() } // assume _id matches no documents in the database + * const result = await clientEncryption.rewrapManyDataKey(filter); + * + * if (result.bulkWriteResult == null) { + * // no keys matched, `bulkWriteResult` does not exist on the result object + * } + * ``` + */ + rewrapManyDataKey(filter: Filter, options: ClientEncryptionRewrapManyDataKeyProviderOptions): Promise<{ + bulkWriteResult?: BulkWriteResult; + }>; + /** + * Deletes the key with the provided id from the keyvault, if it exists. + * + * @example + * ```ts + * // delete a key by _id + * const id = new Binary(); // id is a bson binary subtype 4 object + * const { deletedCount } = await clientEncryption.deleteKey(id); + * + * if (deletedCount != null && deletedCount > 0) { + * // successful deletion + * } + * ``` + * + */ + deleteKey(_id: Binary): Promise; + /** + * Finds all the keys currently stored in the keyvault. + * + * This method will not throw. + * + * @returns a FindCursor over all keys in the keyvault. + * @example + * ```ts + * // fetching all keys + * const keys = await clientEncryption.getKeys().toArray(); + * ``` + */ + getKeys(): FindCursor; + /** + * Finds a key in the keyvault with the specified _id. + * + * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // getting a key by id + * const id = new Binary(); // id is a bson binary subtype 4 object + * const key = await clientEncryption.getKey(id); + * if (!key) { + * // key is null if there was no matching key + * } + * ``` + */ + getKey(_id: Binary): Promise; + /** + * Finds a key in the keyvault which has the specified keyAltName. + * + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the keyAltName. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // get a key by alt name + * const keyAltName = 'keyAltName'; + * const key = await clientEncryption.getKeyByAltName(keyAltName); + * if (!key) { + * // key is null if there is no matching key + * } + * ``` + */ + getKeyByAltName(keyAltName: string): Promise | null>; + /** + * Adds a keyAltName to a key identified by the provided _id. + * + * This method resolves to/returns the *old* key value (prior to adding the new altKeyName). + * + * @param _id - The id of the document to update. + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // adding an keyAltName to a data key + * const id = new Binary(); // id is a bson binary subtype 4 object + * const keyAltName = 'keyAltName'; + * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName); + * if (!oldKey) { + * // null is returned if there is no matching document with an id matching the supplied id + * } + * ``` + */ + addKeyAltName(_id: Binary, keyAltName: string): Promise | null>; + /** + * Adds a keyAltName to a key identified by the provided _id. + * + * This method resolves to/returns the *old* key value (prior to removing the new altKeyName). + * + * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document. + * + * @param _id - The id of the document to update. + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // removing a key alt name from a data key + * const id = new Binary(); // id is a bson binary subtype 4 object + * const keyAltName = 'keyAltName'; + * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName); + * + * if (!oldKey) { + * // null is returned if there is no matching document with an id matching the supplied id + * } + * ``` + */ + removeKeyAltName(_id: Binary, keyAltName: string): Promise | null>; + /** + * A convenience method for creating an encrypted collection. + * This method will create data keys for any encryptedFields that do not have a `keyId` defined + * and then create a new collection with the full set of encryptedFields. + * + * @param db - A Node.js driver Db object with which to create the collection + * @param name - The name of the collection to be created + * @param options - Options for createDataKey and for createCollection + * @returns created collection and generated encryptedFields + * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created. + * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created. + */ + createEncryptedCollection(db: Db, name: string, options: { + provider: ClientEncryptionDataKeyProvider; + createCollectionOptions: Omit & { + encryptedFields: Document; + }; + masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions; + }): Promise<{ + collection: Collection; + encryptedFields: Document; + }>; + /** + * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must + * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error. + * + * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON + * @param options - + * @returns a Promise that either resolves with the encrypted value, or rejects with an error. + * + * @example + * ```ts + * // Encryption with async/await api + * async function encryptMyData(value) { + * const keyId = await clientEncryption.createDataKey('local'); + * return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' }); + * } + * ``` + * + * @example + * ```ts + * // Encryption using a keyAltName + * async function encryptMyData(value) { + * await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' }); + * return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' }); + * } + * ``` + */ + encrypt(value: unknown, options: ClientEncryptionEncryptOptions): Promise; + /** + * Encrypts a Match Expression or Aggregate Expression to query a range index. + * + * Only supported when queryType is "rangePreview" and algorithm is "RangePreview". + * + * @experimental The Range algorithm is experimental only. It is not intended for production use. It is subject to breaking changes. + * + * @param expression - a BSON document of one of the following forms: + * 1. A Match Expression of this form: + * `{$and: [{: {$gt: }}, {: {$lt: }}]}` + * 2. An Aggregate Expression of this form: + * `{$and: [{$gt: [, ]}, {$lt: [, ]}]}` + * + * `$gt` may also be `$gte`. `$lt` may also be `$lte`. + * + * @param options - + * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error. + */ + encryptExpression(expression: Document, options: ClientEncryptionEncryptOptions): Promise; + /** + * Explicitly decrypt a provided encrypted value + * + * @param value - An encrypted value + * @returns a Promise that either resolves with the decrypted value, or rejects with an error + * + * @example + * ```ts + * // Decrypting value with async/await API + * async function decryptMyValue(value) { + * return clientEncryption.decrypt(value); + * } + * ``` + */ + decrypt(value: Binary): Promise; + /* Excluded from this release type: askForKMSCredentials */ + static get libmongocryptVersion(): string; + /* Excluded from this release type: _encrypt */ +} + +/** + * @public + * Options to provide when creating a new data key. + */ +export declare interface ClientEncryptionCreateDataKeyProviderOptions { + /** + * Identifies a new KMS-specific key used to encrypt the new data key + */ + masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | undefined; + /** + * An optional list of string alternate names used to reference a key. + * If a key is created with alternate names, then encryption may refer to the key by the unique alternate name instead of by _id. + */ + keyAltNames?: string[] | undefined; + /** @experimental */ + keyMaterial?: Buffer | Binary; +} + +/** + * @public + */ +export declare type ClientEncryptionDataKeyProvider = 'aws' | 'azure' | 'gcp' | 'local' | 'kmip'; + +/** + * @public + * Options to provide when encrypting data. + */ +export declare interface ClientEncryptionEncryptOptions { + /** + * The algorithm to use for encryption. + */ + algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random' | 'Indexed' | 'Unindexed' | 'RangePreview'; + /** + * The id of the Binary dataKey to use for encryption + */ + keyId?: Binary; + /** + * A unique string name corresponding to an already existing dataKey. + */ + keyAltName?: string; + /** The contention factor. */ + contentionFactor?: bigint | number; + /** + * The query type supported. Only the queryType `equality` is stable. + * + * @experimental Public Technical Preview: The queryType `rangePreview` is experimental. + */ + queryType?: 'equality' | 'rangePreview'; + /** @experimental Public Technical Preview: The index options for a Queryable Encryption field supporting "rangePreview" queries.*/ + rangeOptions?: RangeOptions; +} + +/** + * @public + * Options to provide when encrypting data. + */ +export declare interface ClientEncryptionEncryptOptions { + /** + * The algorithm to use for encryption. + */ + algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random' | 'Indexed' | 'Unindexed' | 'RangePreview'; + /** + * The id of the Binary dataKey to use for encryption + */ + keyId?: Binary; + /** + * A unique string name corresponding to an already existing dataKey. + */ + keyAltName?: string; + /** The contention factor. */ + contentionFactor?: bigint | number; + /** + * The query type supported. Only the queryType `equality` is stable. + * + * @experimental Public Technical Preview: The queryType `rangePreview` is experimental. + */ + queryType?: 'equality' | 'rangePreview'; + /** @experimental Public Technical Preview: The index options for a Queryable Encryption field supporting "rangePreview" queries.*/ + rangeOptions?: RangeOptions; +} + +/** + * @public + * Additional settings to provide when creating a new `ClientEncryption` instance. + */ +export declare interface ClientEncryptionOptions { + /** + * The namespace of the key vault, used to store encryption keys + */ + keyVaultNamespace: string; + /** + * A MongoClient used to fetch keys from a key vault. Defaults to client. + */ + keyVaultClient?: MongoClient | undefined; + /** + * Options for specific KMS providers to use + */ + kmsProviders?: KMSProviders; + /** + * Options for specifying a Socks5 proxy to use for connecting to the KMS. + */ + proxyOptions?: ProxyOptions; + /** + * TLS options for kms providers to use. + */ + tlsOptions?: CSFLEKMSTlsOptions; +} + +/** + * @public + * @experimental + */ +export declare interface ClientEncryptionRewrapManyDataKeyProviderOptions { + provider: ClientEncryptionDataKeyProvider; + masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | undefined; +} + +/** + * @public + * @experimental + */ +export declare interface ClientEncryptionRewrapManyDataKeyProviderOptions { + provider: ClientEncryptionDataKeyProvider; + masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions | undefined; +} + +/** + * @public + * @experimental + */ +export declare interface ClientEncryptionRewrapManyDataKeyResult { + /** The result of rewrapping data keys. If unset, no keys matched the filter. */ + bulkWriteResult?: BulkWriteResult; +} + +/** + * @public + * + * TLS options to use when connecting. The spec specifically calls out which insecure + * tls options are not allowed: + * + * - tlsAllowInvalidCertificates + * - tlsAllowInvalidHostnames + * - tlsInsecure + * + * These options are not included in the type, and are ignored if provided. + */ +export declare type ClientEncryptionTlsOptions = Pick; + +/** + * @public + * @see https://github.com/mongodb/specifications/blob/master/source/mongodb-handshake/handshake.rst#hello-command + */ +export declare interface ClientMetadata { + driver: { + name: string; + version: string; + }; + os: { + type: string; + name?: NodeJS.Platform; + architecture?: string; + version?: string; + }; + platform: string; + application?: { + name: string; + }; + /** FaaS environment information */ + env?: { + name: 'aws.lambda' | 'gcp.func' | 'azure.func' | 'vercel'; + timeout_sec?: Int32; + memory_mb?: Int32; + region?: string; + url?: string; + }; +} + +/** @public */ +export declare interface ClientMetadataOptions { + driverInfo?: { + name?: string; + version?: string; + platform?: string; + }; + appName?: string; +} + +/** + * A class representing a client session on the server + * + * NOTE: not meant to be instantiated directly. + * @public + */ +export declare class ClientSession extends TypedEventEmitter { + /* Excluded from this release type: client */ + /* Excluded from this release type: sessionPool */ + hasEnded: boolean; + clientOptions?: MongoOptions; + supports: { + causalConsistency: boolean; + }; + clusterTime?: ClusterTime; + operationTime?: Timestamp; + explicit: boolean; + /* Excluded from this release type: owner */ + defaultTransactionOptions: TransactionOptions; + transaction: Transaction; + /* Excluded from this release type: [kServerSession] */ + /* Excluded from this release type: [kSnapshotTime] */ + /* Excluded from this release type: [kSnapshotEnabled] */ + /* Excluded from this release type: [kPinnedConnection] */ + /* Excluded from this release type: [kTxnNumberIncrement] */ + /* Excluded from this release type: timeoutMS */ + /* Excluded from this release type: __constructor */ + /** The server id associated with this session */ + get id(): ServerSessionId | undefined; + get serverSession(): ServerSession; + /** Whether or not this session is configured for snapshot reads */ + get snapshotEnabled(): boolean; + get loadBalanced(): boolean; + /* Excluded from this release type: pinnedConnection */ + /* Excluded from this release type: pin */ + /* Excluded from this release type: unpin */ + get isPinned(): boolean; + /** + * Ends this session on the server + * + * @param options - Optional settings. Currently reserved for future use + */ + endSession(options?: EndSessionOptions): Promise; + /** + * Advances the operationTime for a ClientSession. + * + * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to + */ + advanceOperationTime(operationTime: Timestamp): void; + /** + * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession + * + * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature + */ + advanceClusterTime(clusterTime: ClusterTime): void; + /** + * Used to determine if this session equals another + * + * @param session - The session to compare to + */ + equals(session: ClientSession): boolean; + /** + * Increment the transaction number on the internal ServerSession + * + * @privateRemarks + * This helper increments a value stored on the client session that will be + * added to the serverSession's txnNumber upon applying it to a command. + * This is because the serverSession is lazily acquired after a connection is obtained + */ + incrementTransactionNumber(): void; + /** @returns whether this session is currently in a transaction or not */ + inTransaction(): boolean; + /** + * Starts a new transaction with the given options. + * + * @param options - Options for the transaction + */ + startTransaction(options?: TransactionOptions): void; + /** + * Commits the currently active transaction in this session. + */ + commitTransaction(): Promise; + /** + * Aborts the currently active transaction in this session. + */ + abortTransaction(): Promise; + /** + * This is here to ensure that ClientSession is never serialized to BSON. + */ + toBSON(): never; + /** + * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed. + * + * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise. + * + * @remarks + * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function. + * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error. + * - If the transaction is manually aborted within the provided function it will not throw. + * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times. + * + * Checkout a descriptive example here: + * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions + * + * If a command inside withTransaction fails: + * - It may cause the transaction on the server to be aborted. + * - This situation is normally handled transparently by the driver. + * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not. + * - The driver will then retry the transaction indefinitely. + * + * To avoid this situation, the application must not silently handle errors within the provided function. + * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction. + * + * @param fn - callback to run within a transaction + * @param options - optional settings for the transaction + * @returns A raw command response or undefined + */ + withTransaction(fn: WithTransactionCallback, options?: TransactionOptions): Promise; +} + +/** @public */ +export declare type ClientSessionEvents = { + ended(session: ClientSession): void; +}; + +/** @public */ +export declare interface ClientSessionOptions { + /** Whether causal consistency should be enabled on this session */ + causalConsistency?: boolean; + /** Whether all read operations should be read from the same snapshot for this session (NOTE: not compatible with `causalConsistency=true`) */ + snapshot?: boolean; + /** The default TransactionOptions to use for transactions started on this session. */ + defaultTransactionOptions?: TransactionOptions; + /* Excluded from this release type: defaultTimeoutMS */ + /* Excluded from this release type: owner */ + /* Excluded from this release type: explicit */ + /* Excluded from this release type: initialClusterTime */ +} + +/** + * @public + * @deprecated This interface is deprecated and will be removed in a future release as it is not used + * in the driver + */ +export declare interface CloseOptions { + force?: boolean; +} + +/** @public + * Configuration options for clustered collections + * @see https://www.mongodb.com/docs/manual/core/clustered-collections/ + */ +export declare interface ClusteredCollectionOptions extends Document { + name?: string; + key: Document; + unique: boolean; +} + +/** + * @public + * Gossiped in component for the cluster time tracking the state of user databases + * across the cluster. It may optionally include a signature identifying the process that + * generated such a value. + */ +export declare interface ClusterTime { + clusterTime: Timestamp; + /** Used to validate the identity of a request or response's ClusterTime. */ + signature?: { + hash: Binary; + keyId: Long; + }; +} + +export { Code } + +/** @public */ +export declare interface CollationOptions { + locale: string; + caseLevel?: boolean; + caseFirst?: string; + strength?: number; + numericOrdering?: boolean; + alternate?: string; + maxVariable?: string; + backwards?: boolean; + normalization?: boolean; +} + +/** + * The **Collection** class is an internal class that embodies a MongoDB collection + * allowing for insert/find/update/delete and other command operation on that MongoDB collection. + * + * **COLLECTION Cannot directly be instantiated** + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * interface Pet { + * name: string; + * kind: 'dog' | 'cat' | 'fish'; + * } + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const pets = client.db().collection('pets'); + * + * const petCursor = pets.find(); + * + * for await (const pet of petCursor) { + * console.log(`${pet.name} is a ${pet.kind}!`); + * } + * ``` + */ +export declare class Collection { + /* Excluded from this release type: s */ + /* Excluded from this release type: client */ + /* Excluded from this release type: __constructor */ + /** + * The name of the database this collection belongs to + */ + get dbName(): string; + /** + * The name of this collection + */ + get collectionName(): string; + /** + * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}` + */ + get namespace(): string; + /* Excluded from this release type: fullNamespace */ + /** + * The current readConcern of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get readConcern(): ReadConcern | undefined; + /** + * The current readPreference of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get readPreference(): ReadPreference | undefined; + get bsonOptions(): BSONSerializeOptions; + /** + * The current writeConcern of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get writeConcern(): WriteConcern | undefined; + /** The current index hint for the collection */ + get hint(): Hint | undefined; + set hint(v: Hint | undefined); + /** + * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param doc - The document to insert + * @param options - Optional settings for the command + */ + insertOne(doc: OptionalUnlessRequiredId, options?: InsertOneOptions): Promise>; + /** + * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param docs - The documents to insert + * @param options - Optional settings for the command + */ + insertMany(docs: OptionalUnlessRequiredId[], options?: BulkWriteOptions): Promise>; + /** + * Perform a bulkWrite operation without a fluent API + * + * Legal operation types are + * - `insertOne` + * - `replaceOne` + * - `updateOne` + * - `updateMany` + * - `deleteOne` + * - `deleteMany` + * + * If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param operations - Bulk operations to perform + * @param options - Optional settings for the command + * @throws MongoDriverError if operations is not an array + */ + bulkWrite(operations: AnyBulkWriteOperation[], options?: BulkWriteOptions): Promise; + /** + * Update a single document in a collection + * + * The value of `update` can be either: + * - UpdateFilter - A document that contains update operator expressions, + * - Document[] - an aggregation pipeline. + * + * @param filter - The filter used to select the document to update + * @param update - The modifications to apply + * @param options - Optional settings for the command + */ + updateOne(filter: Filter, update: UpdateFilter | Document[], options?: UpdateOptions): Promise>; + /** + * Replace a document in a collection with another document + * + * @param filter - The filter used to select the document to replace + * @param replacement - The Document that replaces the matching document + * @param options - Optional settings for the command + */ + replaceOne(filter: Filter, replacement: WithoutId, options?: ReplaceOptions): Promise | Document>; + /** + * Update multiple documents in a collection + * + * The value of `update` can be either: + * - UpdateFilter - A document that contains update operator expressions, + * - Document[] - an aggregation pipeline. + * + * @param filter - The filter used to select the document to update + * @param update - The modifications to apply + * @param options - Optional settings for the command + */ + updateMany(filter: Filter, update: UpdateFilter | Document[], options?: UpdateOptions): Promise>; + /** + * Delete a document from a collection + * + * @param filter - The filter used to select the document to remove + * @param options - Optional settings for the command + */ + deleteOne(filter?: Filter, options?: DeleteOptions): Promise; + /** + * Delete multiple documents from a collection + * + * @param filter - The filter used to select the documents to remove + * @param options - Optional settings for the command + */ + deleteMany(filter?: Filter, options?: DeleteOptions): Promise; + /** + * Rename the collection. + * + * @remarks + * This operation does not inherit options from the Db or MongoClient. + * + * @param newName - New name of of the collection. + * @param options - Optional settings for the command + */ + rename(newName: string, options?: RenameOptions): Promise; + /** + * Drop the collection from the database, removing it permanently. New accesses will create a new collection. + * + * @param options - Optional settings for the command + */ + drop(options?: DropCollectionOptions): Promise; + /** + * Fetches the first document that matches the filter + * + * @param filter - Query for find Operation + * @param options - Optional settings for the command + */ + findOne(): Promise | null>; + findOne(filter: Filter): Promise | null>; + findOne(filter: Filter, options: FindOptions): Promise | null>; + findOne(): Promise; + findOne(filter: Filter): Promise; + findOne(filter: Filter, options?: FindOptions): Promise; + /** + * Creates a cursor for a filter that can be used to iterate over results from MongoDB + * + * @param filter - The filter predicate. If unspecified, then all documents in the collection will match the predicate + */ + find(): FindCursor>; + find(filter: Filter, options?: FindOptions): FindCursor>; + find(filter: Filter, options?: FindOptions): FindCursor; + /** + * Returns the options of the collection. + * + * @param options - Optional settings for the command + */ + options(options?: OperationOptions): Promise; + /** + * Returns if the collection is a capped collection + * + * @param options - Optional settings for the command + */ + isCapped(options?: OperationOptions): Promise; + /** + * Creates an index on the db and collection collection. + * + * @param indexSpec - The field name or index specification to create an index for + * @param options - Optional settings for the command + * + * @example + * ```ts + * const collection = client.db('foo').collection('bar'); + * + * await collection.createIndex({ a: 1, b: -1 }); + * + * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes + * await collection.createIndex([ [c, 1], [d, -1] ]); + * + * // Equivalent to { e: 1 } + * await collection.createIndex('e'); + * + * // Equivalent to { f: 1, g: 1 } + * await collection.createIndex(['f', 'g']) + * + * // Equivalent to { h: 1, i: -1 } + * await collection.createIndex([ { h: 1 }, { i: -1 } ]); + * + * // Equivalent to { j: 1, k: -1, l: 2d } + * await collection.createIndex(['j', ['k', -1], { l: '2d' }]) + * ``` + */ + createIndex(indexSpec: IndexSpecification, options?: CreateIndexesOptions): Promise; + /** + * Creates multiple indexes in the collection, this method is only supported for + * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported + * error. + * + * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications. + * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}. + * + * @param indexSpecs - An array of index specifications to be created + * @param options - Optional settings for the command + * + * @example + * ```ts + * const collection = client.db('foo').collection('bar'); + * await collection.createIndexes([ + * // Simple index on field fizz + * { + * key: { fizz: 1 }, + * } + * // wildcard index + * { + * key: { '$**': 1 } + * }, + * // named index on darmok and jalad + * { + * key: { darmok: 1, jalad: -1 } + * name: 'tanagra' + * } + * ]); + * ``` + */ + createIndexes(indexSpecs: IndexDescription[], options?: CreateIndexesOptions): Promise; + /** + * Drops an index from this collection. + * + * @param indexName - Name of the index to drop. + * @param options - Optional settings for the command + */ + dropIndex(indexName: string, options?: DropIndexesOptions): Promise; + /** + * Drops all indexes from this collection. + * + * @param options - Optional settings for the command + */ + dropIndexes(options?: DropIndexesOptions): Promise; + /** + * Get the list of all indexes information for the collection. + * + * @param options - Optional settings for the command + */ + listIndexes(options?: ListIndexesOptions): ListIndexesCursor; + /** + * Checks if one or more indexes exist on the collection, fails on first non-existing index + * + * @param indexes - One or more index names to check. + * @param options - Optional settings for the command + */ + indexExists(indexes: string | string[], options?: ListIndexesOptions): Promise; + /** + * Retrieves this collections index info. + * + * @param options - Optional settings for the command + */ + indexInformation(options: IndexInformationOptions & { + full: true; + }): Promise; + indexInformation(options: IndexInformationOptions & { + full?: false; + }): Promise; + indexInformation(options: IndexInformationOptions): Promise; + indexInformation(): Promise; + /** + * Gets an estimate of the count of documents in a collection using collection metadata. + * This will always run a count command on all server versions. + * + * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command, + * which estimatedDocumentCount uses in its implementation, was not included in v1 of + * the Stable API, and so users of the Stable API with estimatedDocumentCount are + * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid + * encountering errors. + * + * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior} + * @param options - Optional settings for the command + */ + estimatedDocumentCount(options?: EstimatedDocumentCountOptions): Promise; + /** + * Gets the number of documents matching the filter. + * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}. + * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments} + * the following query operators must be replaced: + * + * | Operator | Replacement | + * | -------- | ----------- | + * | `$where` | [`$expr`][1] | + * | `$near` | [`$geoWithin`][2] with [`$center`][3] | + * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] | + * + * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/ + * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center + * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere + * + * @param filter - The filter for the count + * @param options - Optional settings for the command + * + * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/ + * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center + * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere + */ + countDocuments(filter?: Filter, options?: CountDocumentsOptions): Promise; + /** + * The distinct command returns a list of distinct values for the given key across a collection. + * + * @param key - Field of the document to find distinct values for + * @param filter - The filter for filtering the set of documents to which we apply the distinct filter. + * @param options - Optional settings for the command + */ + distinct>(key: Key): Promise[Key]>>>; + distinct>(key: Key, filter: Filter): Promise[Key]>>>; + distinct>(key: Key, filter: Filter, options: DistinctOptions): Promise[Key]>>>; + distinct(key: string): Promise; + distinct(key: string, filter: Filter): Promise; + distinct(key: string, filter: Filter, options: DistinctOptions): Promise; + /** + * Retrieve all the indexes on the collection. + * + * @param options - Optional settings for the command + */ + indexes(options: IndexInformationOptions & { + full?: true; + }): Promise; + indexes(options: IndexInformationOptions & { + full: false; + }): Promise; + indexes(options: IndexInformationOptions): Promise; + indexes(options?: ListIndexesOptions): Promise; + /** + * Find a document and delete it in one atomic operation. Requires a write lock for the duration of the operation. + * + * @param filter - The filter used to select the document to remove + * @param options - Optional settings for the command + */ + findOneAndDelete(filter: Filter, options: FindOneAndDeleteOptions & { + includeResultMetadata: true; + }): Promise>; + findOneAndDelete(filter: Filter, options: FindOneAndDeleteOptions & { + includeResultMetadata: false; + }): Promise | null>; + findOneAndDelete(filter: Filter, options: FindOneAndDeleteOptions): Promise | null>; + findOneAndDelete(filter: Filter): Promise | null>; + /** + * Find a document and replace it in one atomic operation. Requires a write lock for the duration of the operation. + * + * @param filter - The filter used to select the document to replace + * @param replacement - The Document that replaces the matching document + * @param options - Optional settings for the command + */ + findOneAndReplace(filter: Filter, replacement: WithoutId, options: FindOneAndReplaceOptions & { + includeResultMetadata: true; + }): Promise>; + findOneAndReplace(filter: Filter, replacement: WithoutId, options: FindOneAndReplaceOptions & { + includeResultMetadata: false; + }): Promise | null>; + findOneAndReplace(filter: Filter, replacement: WithoutId, options: FindOneAndReplaceOptions): Promise | null>; + findOneAndReplace(filter: Filter, replacement: WithoutId): Promise | null>; + /** + * Find a document and update it in one atomic operation. Requires a write lock for the duration of the operation. + * + * @param filter - The filter used to select the document to update + * @param update - Update operations to be performed on the document + * @param options - Optional settings for the command + */ + findOneAndUpdate(filter: Filter, update: UpdateFilter, options: FindOneAndUpdateOptions & { + includeResultMetadata: true; + }): Promise>; + findOneAndUpdate(filter: Filter, update: UpdateFilter, options: FindOneAndUpdateOptions & { + includeResultMetadata: false; + }): Promise | null>; + findOneAndUpdate(filter: Filter, update: UpdateFilter, options: FindOneAndUpdateOptions): Promise | null>; + findOneAndUpdate(filter: Filter, update: UpdateFilter): Promise | null>; + /** + * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2 + * + * @param pipeline - An array of aggregation pipelines to execute + * @param options - Optional settings for the command + */ + aggregate(pipeline?: Document[], options?: AggregateOptions): AggregationCursor; + /** + * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to override the schema that may be defined for this specific collection + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * @example + * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>` + * ```ts + * collection.watch<{ _id: number }>() + * .on('change', change => console.log(change._id.toFixed(4))); + * ``` + * + * @example + * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline. + * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment. + * No need start from scratch on the ChangeStreamInsertDocument type! + * By using an intersection we can save time and ensure defaults remain the same type! + * ```ts + * collection + * .watch & { comment: string }>([ + * { $addFields: { comment: 'big changes' } }, + * { $match: { operationType: 'insert' } } + * ]) + * .on('change', change => { + * change.comment.startsWith('big'); + * change.operationType === 'insert'; + * // No need to narrow in code because the generics did that for us! + * expectType(change.fullDocument); + * }); + * ``` + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TLocal - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream; + /** + * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order. + * + * @throws MongoNotConnectedError + * @remarks + * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation. + * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting. + */ + initializeUnorderedBulkOp(options?: BulkWriteOptions): UnorderedBulkOperation; + /** + * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types. + * + * @throws MongoNotConnectedError + * @remarks + * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation. + * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting. + */ + initializeOrderedBulkOp(options?: BulkWriteOptions): OrderedBulkOperation; + /** + * An estimated count of matching documents in the db to a filter. + * + * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents + * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}. + * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}. + * + * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead + * + * @param filter - The filter for the count. + * @param options - Optional settings for the command + */ + count(filter?: Filter, options?: CountOptions): Promise; + /** + * Returns all search indexes for the current collection. + * + * @param options - The options for the list indexes operation. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + listSearchIndexes(options?: ListSearchIndexesOptions): ListSearchIndexesCursor; + /** + * Returns all search indexes for the current collection. + * + * @param name - The name of the index to search for. Only indexes with matching index names will be returned. + * @param options - The options for the list indexes operation. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + listSearchIndexes(name: string, options?: ListSearchIndexesOptions): ListSearchIndexesCursor; + /** + * Creates a single search index for the collection. + * + * @param description - The index description for the new search index. + * @returns A promise that resolves to the name of the new search index. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + createSearchIndex(description: SearchIndexDescription): Promise; + /** + * Creates multiple search indexes for the current collection. + * + * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes. + * @returns A promise that resolves to an array of the newly created search index names. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + * @returns + */ + createSearchIndexes(descriptions: SearchIndexDescription[]): Promise; + /** + * Deletes a search index by index name. + * + * @param name - The name of the search index to be deleted. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + dropSearchIndex(name: string): Promise; + /** + * Updates a search index by replacing the existing index definition with the provided definition. + * + * @param name - The name of the search index to update. + * @param definition - The new search index definition. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + updateSearchIndex(name: string, definition: Document): Promise; +} + +/** @public */ +export declare interface CollectionInfo extends Document { + name: string; + type?: string; + options?: Document; + info?: { + readOnly?: false; + uuid?: Binary; + }; + idIndex?: Document; +} + +/** @public */ +export declare interface CollectionOptions extends BSONSerializeOptions, WriteConcernOptions { + /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcernLike; + /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */ + readPreference?: ReadPreferenceLike; + /* Excluded from this release type: timeoutMS */ +} + +/* Excluded from this release type: CollectionPrivate */ + +/* Excluded from this release type: COMMAND_FAILED */ + +/* Excluded from this release type: COMMAND_STARTED */ + +/* Excluded from this release type: COMMAND_SUCCEEDED */ + +/** + * An event indicating the failure of a given command + * @public + * @category Event + */ +export declare class CommandFailedEvent { + address: string; + /** Driver generated connection id */ + connectionId?: string | number; + /** + * Server generated connection id + * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+. + */ + serverConnectionId: bigint | null; + requestId: number; + duration: number; + commandName: string; + failure: Error; + serviceId?: ObjectId; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ + get hasServiceId(): boolean; +} + +/* Excluded from this release type: CommandOperation */ + +/** @public */ +export declare interface CommandOperationOptions extends OperationOptions, WriteConcernOptions, ExplainOptions { + /** Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcernLike; + /** Collation */ + collation?: CollationOptions; + maxTimeMS?: number; + /** + * Comment to apply to the operation. + * + * In server versions pre-4.4, 'comment' must be string. A server + * error will be thrown if any other type is provided. + * + * In server versions 4.4 and above, 'comment' can be any valid BSON type. + */ + comment?: unknown; + /** Should retry failed writes */ + retryWrites?: boolean; + dbName?: string; + authdb?: string; + noResponse?: boolean; +} + +/* Excluded from this release type: CommandOptions */ + +/** + * An event indicating the start of a given command + * @public + * @category Event + */ +export declare class CommandStartedEvent { + commandObj?: Document; + requestId: number; + databaseName: string; + commandName: string; + command: Document; + address: string; + /** Driver generated connection id */ + connectionId?: string | number; + /** + * Server generated connection id + * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" + * from the server on 4.2+. + */ + serverConnectionId: bigint | null; + serviceId?: ObjectId; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ + get hasServiceId(): boolean; +} + +/** + * An event indicating the success of a given command + * @public + * @category Event + */ +export declare class CommandSucceededEvent { + address: string; + /** Driver generated connection id */ + connectionId?: string | number; + /** + * Server generated connection id + * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+. + */ + serverConnectionId: bigint | null; + requestId: number; + duration: number; + commandName: string; + reply: unknown; + serviceId?: ObjectId; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ + get hasServiceId(): boolean; +} + +/** @public */ +export declare type CommonEvents = 'newListener' | 'removeListener'; + +/** @public */ +export declare const Compressor: Readonly<{ + readonly none: 0; + readonly snappy: 1; + readonly zlib: 2; + readonly zstd: 3; +}>; + +/** @public */ +export declare type Compressor = (typeof Compressor)[CompressorName]; + +/** @public */ +export declare type CompressorName = keyof typeof Compressor; + +/** @public */ +export declare type Condition = AlternativeType | FilterOperators>; + +/* Excluded from this release type: Connection */ + +/* Excluded from this release type: CONNECTION_CHECK_OUT_FAILED */ + +/* Excluded from this release type: CONNECTION_CHECK_OUT_STARTED */ + +/* Excluded from this release type: CONNECTION_CHECKED_IN */ + +/* Excluded from this release type: CONNECTION_CHECKED_OUT */ + +/* Excluded from this release type: CONNECTION_CLOSED */ + +/* Excluded from this release type: CONNECTION_CREATED */ + +/* Excluded from this release type: CONNECTION_POOL_CLEARED */ + +/* Excluded from this release type: CONNECTION_POOL_CLOSED */ + +/* Excluded from this release type: CONNECTION_POOL_CREATED */ + +/* Excluded from this release type: CONNECTION_POOL_READY */ + +/* Excluded from this release type: CONNECTION_READY */ + +/** + * An event published when a connection is checked into the connection pool + * @public + * @category Event + */ +export declare class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a connection is checked out of the connection pool + * @public + * @category Event + */ +export declare class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a request to check a connection out fails + * @public + * @category Event + */ +export declare class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent { + /** The reason the attempt to check out failed */ + reason: string; + /* Excluded from this release type: error */ + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a request to check a connection out begins + * @public + * @category Event + */ +export declare class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent { + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a connection is closed + * @public + * @category Event + */ +export declare class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /** The reason the connection was closed */ + reason: string; + serviceId?: ObjectId; + /* Excluded from this release type: name */ + /* Excluded from this release type: error */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a connection pool creates a new connection + * @public + * @category Event + */ +export declare class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent { + /** A monotonically increasing, per-pool id for the newly created connection */ + connectionId: number | ''; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare type ConnectionEvents = { + commandStarted(event: CommandStartedEvent): void; + commandSucceeded(event: CommandSucceededEvent): void; + commandFailed(event: CommandFailedEvent): void; + clusterTimeReceived(clusterTime: Document): void; + close(): void; + pinned(pinType: string): void; + unpinned(pinType: string): void; +}; + +/** @public */ +export declare interface ConnectionOptions extends SupportedNodeConnectionOptions, StreamDescriptionOptions, ProxyOptions { + id: number | ''; + generation: number; + hostAddress: HostAddress; + /* Excluded from this release type: autoEncrypter */ + serverApi?: ServerApi; + monitorCommands: boolean; + /* Excluded from this release type: connectionType */ + credentials?: MongoCredentials; + /* Excluded from this release type: authProviders */ + connectTimeoutMS?: number; + tls: boolean; + noDelay?: boolean; + socketTimeoutMS?: number; + cancellationToken?: CancellationToken; + metadata: ClientMetadata; + /* Excluded from this release type: extendedMetadata */ + /* Excluded from this release type: mongoLogger */ +} + +/* Excluded from this release type: ConnectionPool */ + +/** + * An event published when a connection pool is cleared + * @public + * @category Event + */ +export declare class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent { + /* Excluded from this release type: serviceId */ + interruptInUseConnections?: boolean; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a connection pool is closed + * @public + * @category Event + */ +export declare class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent { + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a connection pool is created + * @public + * @category Event + */ +export declare class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent { + /** The options used to create this connection pool */ + options: Pick; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare type ConnectionPoolEvents = { + connectionPoolCreated(event: ConnectionPoolCreatedEvent): void; + connectionPoolReady(event: ConnectionPoolReadyEvent): void; + connectionPoolClosed(event: ConnectionPoolClosedEvent): void; + connectionPoolCleared(event: ConnectionPoolClearedEvent): void; + connectionCreated(event: ConnectionCreatedEvent): void; + connectionReady(event: ConnectionReadyEvent): void; + connectionClosed(event: ConnectionClosedEvent): void; + connectionCheckOutStarted(event: ConnectionCheckOutStartedEvent): void; + connectionCheckOutFailed(event: ConnectionCheckOutFailedEvent): void; + connectionCheckedOut(event: ConnectionCheckedOutEvent): void; + connectionCheckedIn(event: ConnectionCheckedInEvent): void; +} & Omit; + +/* Excluded from this release type: ConnectionPoolMetrics */ + +/** + * The base export class for all monitoring events published from the connection pool + * @public + * @category Event + */ +export declare abstract class ConnectionPoolMonitoringEvent { + /** A timestamp when the event was created */ + time: Date; + /** The address (host/port pair) of the pool */ + address: string; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare interface ConnectionPoolOptions extends Omit { + /** The maximum number of connections that may be associated with a pool at a given time. This includes in use and available connections. */ + maxPoolSize: number; + /** The minimum number of connections that MUST exist at any moment in a single connection pool. */ + minPoolSize: number; + /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */ + maxConnecting: number; + /** The maximum amount of time a connection should remain idle in the connection pool before being marked idle. */ + maxIdleTimeMS: number; + /** The maximum amount of time operation execution should wait for a connection to become available. The default is 0 which means there is no limit. */ + waitQueueTimeoutMS: number; + /** If we are in load balancer mode. */ + loadBalanced: boolean; + /* Excluded from this release type: minPoolSizeCheckFrequencyMS */ +} + +/** + * An event published when a connection pool is ready + * @public + * @category Event + */ +export declare class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent { + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * An event published when a connection is ready for use + * @public + * @category Event + */ +export declare class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare interface ConnectOptions { + readPreference?: ReadPreference; +} + +/** @public */ +export declare interface CountDocumentsOptions extends AggregateOptions { + /** The number of documents to skip. */ + skip?: number; + /** The maximum amounts to count before aborting. */ + limit?: number; +} + +/** @public */ +export declare interface CountOptions extends CommandOperationOptions { + /** The number of documents to skip. */ + skip?: number; + /** The maximum amounts to count before aborting. */ + limit?: number; + /** Number of milliseconds to wait before aborting the query. */ + maxTimeMS?: number; + /** An index name hint for the query. */ + hint?: string | Document; +} + +/** @public */ +export declare interface CreateCollectionOptions extends CommandOperationOptions { + /** Create a capped collection */ + capped?: boolean; + /** @deprecated Create an index on the _id field of the document. This option is deprecated in MongoDB 3.2+ and will be removed once no longer supported by the server. */ + autoIndexId?: boolean; + /** The size of the capped collection in bytes */ + size?: number; + /** The maximum number of documents in the capped collection */ + max?: number; + /** Available for the MMAPv1 storage engine only to set the usePowerOf2Sizes and the noPadding flag */ + flags?: number; + /** Allows users to specify configuration to the storage engine on a per-collection basis when creating a collection */ + storageEngine?: Document; + /** Allows users to specify validation rules or expressions for the collection. For more information, see Document Validation */ + validator?: Document; + /** Determines how strictly MongoDB applies the validation rules to existing documents during an update */ + validationLevel?: string; + /** Determines whether to error on invalid documents or just warn about the violations but allow invalid documents to be inserted */ + validationAction?: string; + /** Allows users to specify a default configuration for indexes when creating a collection */ + indexOptionDefaults?: Document; + /** The name of the source collection or view from which to create the view. The name is not the full namespace of the collection or view (i.e., does not include the database name and implies the same database as the view to create) */ + viewOn?: string; + /** An array that consists of the aggregation pipeline stage. Creates the view by applying the specified pipeline to the viewOn collection or view */ + pipeline?: Document[]; + /** A primary key factory function for generation of custom _id keys. */ + pkFactory?: PkFactory; + /** A document specifying configuration options for timeseries collections. */ + timeseries?: TimeSeriesCollectionOptions; + /** A document specifying configuration options for clustered collections. For MongoDB 5.3 and above. */ + clusteredIndex?: ClusteredCollectionOptions; + /** The number of seconds after which a document in a timeseries or clustered collection expires. */ + expireAfterSeconds?: number; + /** @experimental */ + encryptedFields?: Document; + /** + * If set, enables pre-update and post-update document events to be included for any + * change streams that listen on this collection. + */ + changeStreamPreAndPostImages?: { + enabled: boolean; + }; +} + +/** @public */ +export declare interface CreateIndexesOptions extends Omit { + /** Creates the index in the background, yielding whenever possible. */ + background?: boolean; + /** Creates an unique index. */ + unique?: boolean; + /** Override the autogenerated index name (useful if the resulting name is larger than 128 bytes) */ + name?: string; + /** Creates a partial index based on the given filter object (MongoDB 3.2 or higher) */ + partialFilterExpression?: Document; + /** Creates a sparse index. */ + sparse?: boolean; + /** Allows you to expire data on indexes applied to a data (MongoDB 2.2 or higher) */ + expireAfterSeconds?: number; + /** Allows users to configure the storage engine on a per-index basis when creating an index. (MongoDB 3.0 or higher) */ + storageEngine?: Document; + /** (MongoDB 4.4. or higher) Specifies how many data-bearing members of a replica set, including the primary, must complete the index builds successfully before the primary marks the indexes as ready. This option accepts the same values for the "w" field in a write concern plus "votingMembers", which indicates all voting data-bearing nodes. */ + commitQuorum?: number | string; + /** Specifies the index version number, either 0 or 1. */ + version?: number; + weights?: Document; + default_language?: string; + language_override?: string; + textIndexVersion?: number; + '2dsphereIndexVersion'?: number; + bits?: number; + /** For geospatial indexes set the lower bound for the co-ordinates. */ + min?: number; + /** For geospatial indexes set the high bound for the co-ordinates. */ + max?: number; + bucketSize?: number; + wildcardProjection?: Document; + /** Specifies that the index should exist on the target collection but should not be used by the query planner when executing operations. (MongoDB 4.4 or higher) */ + hidden?: boolean; +} + +/** @public */ +export declare type CSFLEKMSTlsOptions = { + aws?: ClientEncryptionTlsOptions; + gcp?: ClientEncryptionTlsOptions; + kmip?: ClientEncryptionTlsOptions; + local?: ClientEncryptionTlsOptions; + azure?: ClientEncryptionTlsOptions; +}; + +/** @public */ +export declare const CURSOR_FLAGS: readonly ["tailable", "oplogReplay", "noCursorTimeout", "awaitData", "exhaust", "partial"]; + +/** @public */ +export declare type CursorFlag = (typeof CURSOR_FLAGS)[number]; + +/* Excluded from this release type: CursorResponse */ + +/** @public */ +export declare interface CursorStreamOptions { + /** A transformation method applied to each document emitted by the stream */ + transform?(this: void, doc: Document): Document; +} + +/** + * @public + * The schema for a DataKey in the key vault collection. + */ +export declare interface DataKey { + _id: UUID; + version?: number; + keyAltNames?: string[]; + keyMaterial: Binary; + creationDate: Date; + updateDate: Date; + status: number; + masterKey: Document; +} + +/** + * The **Db** class is a class that represents a MongoDB Database. + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * interface Pet { + * name: string; + * kind: 'dog' | 'cat' | 'fish'; + * } + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const db = client.db(); + * + * // Create a collection that validates our union + * await db.createCollection('pets', { + * validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } } + * }) + * ``` + */ +export declare class Db { + /* Excluded from this release type: s */ + /* Excluded from this release type: client */ + static SYSTEM_NAMESPACE_COLLECTION: string; + static SYSTEM_INDEX_COLLECTION: string; + static SYSTEM_PROFILE_COLLECTION: string; + static SYSTEM_USER_COLLECTION: string; + static SYSTEM_COMMAND_COLLECTION: string; + static SYSTEM_JS_COLLECTION: string; + /** + * Creates a new Db instance. + * + * Db name cannot contain a dot, the server may apply more restrictions when an operation is run. + * + * @param client - The MongoClient for the database. + * @param databaseName - The name of the database this instance represents. + * @param options - Optional settings for Db construction. + */ + constructor(client: MongoClient, databaseName: string, options?: DbOptions); + get databaseName(): string; + get options(): DbOptions | undefined; + /** + * Check if a secondary can be used (because the read preference is *not* set to primary) + */ + get secondaryOk(): boolean; + get readConcern(): ReadConcern | undefined; + /** + * The current readPreference of the Db. If not explicitly defined for + * this Db, will be inherited from the parent MongoClient + */ + get readPreference(): ReadPreference; + get bsonOptions(): BSONSerializeOptions; + get writeConcern(): WriteConcern | undefined; + get namespace(): string; + /** + * Create a new collection on a server with the specified options. Use this to create capped collections. + * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/ + * + * Collection namespace validation is performed server-side. + * + * @param name - The name of the collection to create + * @param options - Optional settings for the command + */ + createCollection(name: string, options?: CreateCollectionOptions): Promise>; + /** + * Execute a command + * + * @remarks + * This command does not inherit options from the MongoClient. + * + * The driver will ensure the following fields are attached to the command sent to the server: + * - `lsid` - sourced from an implicit session or options.session + * - `$readPreference` - defaults to primary or can be configured by options.readPreference + * - `$db` - sourced from the name of this database + * + * If the client has a serverApi setting: + * - `apiVersion` + * - `apiStrict` + * - `apiDeprecationErrors` + * + * When in a transaction: + * - `readConcern` - sourced from readConcern set on the TransactionOptions + * - `writeConcern` - sourced from writeConcern set on the TransactionOptions + * + * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value. + * + * @param command - The command to run + * @param options - Optional settings for the command + */ + command(command: Document, options?: RunCommandOptions): Promise; + /** + * Execute an aggregation framework pipeline against the database, needs MongoDB \>= 3.6 + * + * @param pipeline - An array of aggregation stages to be executed + * @param options - Optional settings for the command + */ + aggregate(pipeline?: Document[], options?: AggregateOptions): AggregationCursor; + /** Return the Admin db instance */ + admin(): Admin; + /** + * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly. + * + * Collection namespace validation is performed server-side. + * + * @param name - the collection name we wish to access. + * @returns return the new Collection instance + */ + collection(name: string, options?: CollectionOptions): Collection; + /** + * Get all the db statistics. + * + * @param options - Optional settings for the command + */ + stats(options?: DbStatsOptions): Promise; + /** + * List all collections of this database with optional filter + * + * @param filter - Query to filter collections by + * @param options - Optional settings for the command + */ + listCollections(filter: Document, options: Exclude & { + nameOnly: true; + }): ListCollectionsCursor>; + listCollections(filter: Document, options: Exclude & { + nameOnly: false; + }): ListCollectionsCursor; + listCollections | CollectionInfo = Pick | CollectionInfo>(filter?: Document, options?: ListCollectionsOptions): ListCollectionsCursor; + /** + * Rename a collection. + * + * @remarks + * This operation does not inherit options from the MongoClient. + * + * @param fromCollection - Name of current collection to rename + * @param toCollection - New name of of the collection + * @param options - Optional settings for the command + */ + renameCollection(fromCollection: string, toCollection: string, options?: RenameOptions): Promise>; + /** + * Drop a collection from the database, removing it permanently. New accesses will create a new collection. + * + * @param name - Name of collection to drop + * @param options - Optional settings for the command + */ + dropCollection(name: string, options?: DropCollectionOptions): Promise; + /** + * Drop a database, removing it permanently from the server. + * + * @param options - Optional settings for the command + */ + dropDatabase(options?: DropDatabaseOptions): Promise; + /** + * Fetch all collections for the current db. + * + * @param options - Optional settings for the command + */ + collections(options?: ListCollectionsOptions): Promise; + /** + * Creates an index on the db and collection. + * + * @param name - Name of the collection to create the index on. + * @param indexSpec - Specify the field to index, or an index specification + * @param options - Optional settings for the command + */ + createIndex(name: string, indexSpec: IndexSpecification, options?: CreateIndexesOptions): Promise; + /** + * Remove a user from a database + * + * @param username - The username to remove + * @param options - Optional settings for the command + */ + removeUser(username: string, options?: RemoveUserOptions): Promise; + /** + * Set the current profiling level of MongoDB + * + * @param level - The new profiling level (off, slow_only, all). + * @param options - Optional settings for the command + */ + setProfilingLevel(level: ProfilingLevel, options?: SetProfilingLevelOptions): Promise; + /** + * Retrieve the current profiling Level for MongoDB + * + * @param options - Optional settings for the command + */ + profilingLevel(options?: ProfilingLevelOptions): Promise; + /** + * Retrieves this collections index info. + * + * @param name - The name of the collection. + * @param options - Optional settings for the command + */ + indexInformation(name: string, options: IndexInformationOptions & { + full: true; + }): Promise; + indexInformation(name: string, options: IndexInformationOptions & { + full?: false; + }): Promise; + indexInformation(name: string, options: IndexInformationOptions): Promise; + indexInformation(name: string): Promise; + /** + * Create a new Change Stream, watching for new changes (insertions, updates, + * replacements, deletions, and invalidations) in this database. Will ignore all + * changes to system collections. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to provide the schema that may be defined for all the collections within this database + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TSchema - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream; + /** + * A low level cursor API providing basic driver functionality: + * - ClientSession management + * - ReadPreference for server selection + * - Running getMores automatically when a local batch is exhausted + * + * @param command - The command that will start a cursor on the server. + * @param options - Configurations for running the command, bson options will apply to getMores + */ + runCursorCommand(command: Document, options?: RunCursorCommandOptions): RunCommandCursor; +} + +/* Excluded from this release type: DB_AGGREGATE_COLLECTION */ + +/** @public */ +export declare interface DbOptions extends BSONSerializeOptions, WriteConcernOptions { + /** If the database authentication is dependent on another databaseName. */ + authSource?: string; + /** Force server to assign _id values instead of driver. */ + forceServerObjectId?: boolean; + /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */ + readPreference?: ReadPreferenceLike; + /** A primary key factory object for generation of custom _id keys. */ + pkFactory?: PkFactory; + /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcern; + /** Should retry failed writes */ + retryWrites?: boolean; + /* Excluded from this release type: timeoutMS */ +} + +/* Excluded from this release type: DbPrivate */ +export { DBRef } + +/** @public */ +export declare interface DbStatsOptions extends CommandOperationOptions { + /** Divide the returned sizes by scale value. */ + scale?: number; +} + +export { Decimal128 } + +/** @public */ +export declare interface DeleteManyModel { + /** The filter to limit the deleted documents. */ + filter: Filter; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; +} + +/** @public */ +export declare interface DeleteOneModel { + /** The filter to limit the deleted documents. */ + filter: Filter; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; +} + +/** @public */ +export declare interface DeleteOptions extends CommandOperationOptions, WriteConcernOptions { + /** If true, when an insert fails, don't execute the remaining writes. If false, continue with remaining inserts when one fails. */ + ordered?: boolean; + /** Specifies the collation to use for the operation */ + collation?: CollationOptions; + /** Specify that the update query should only consider plans using the hinted index */ + hint?: string | Document; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** @public */ +export declare interface DeleteResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined. */ + acknowledged: boolean; + /** The number of documents that were deleted */ + deletedCount: number; +} + +/** @public */ +export declare interface DeleteStatement { + /** The query that matches documents to delete. */ + q: Document; + /** The number of matching documents to delete. */ + limit: number; + /** Specifies the collation to use for the operation. */ + collation?: CollationOptions; + /** A document or string that specifies the index to use to support the query predicate. */ + hint?: Hint; +} + +export { deserialize } + +/** @public */ +export declare type DistinctOptions = CommandOperationOptions; + +export { Document } + +export { Double } + +/** @public */ +export declare interface DriverInfo { + name?: string; + version?: string; + platform?: string; +} + +/** @public */ +export declare interface DropCollectionOptions extends CommandOperationOptions { + /** @experimental */ + encryptedFields?: Document; +} + +/** @public */ +export declare type DropDatabaseOptions = CommandOperationOptions; + +/** @public */ +export declare type DropIndexesOptions = CommandOperationOptions; + +/* Excluded from this release type: Encrypter */ + +/* Excluded from this release type: EncrypterOptions */ + +/** @public */ +export declare interface EndSessionOptions { + /* Excluded from this release type: error */ + force?: boolean; + forceClear?: boolean; +} + +/** TypeScript Omit (Exclude to be specific) does not work for objects with an "any" indexed type, and breaks discriminated unions @public */ +export declare type EnhancedOmit = string extends keyof TRecordOrUnion ? TRecordOrUnion : TRecordOrUnion extends any ? Pick> : never; + +/** @public */ +export declare interface ErrorDescription extends Document { + message?: string; + errmsg?: string; + $err?: string; + errorLabels?: string[]; + errInfo?: Document; +} + +/** @public */ +export declare interface EstimatedDocumentCountOptions extends CommandOperationOptions { + /** + * The maximum amount of time to allow the operation to run. + * + * This option is sent only if the caller explicitly provides a value. The default is to not send a value. + */ + maxTimeMS?: number; +} + +/** @public */ +export declare type EventEmitterWithState = { + /* Excluded from this release type: stateChanged */ +}; + +/** + * Event description type + * @public + */ +export declare type EventsDescription = Record; + +/* Excluded from this release type: ExecutionResult */ + +/* Excluded from this release type: Explain */ + +/** @public */ +export declare interface ExplainOptions { + /** Specifies the verbosity mode for the explain output. */ + explain?: ExplainVerbosityLike; +} + +/** @public */ +export declare const ExplainVerbosity: Readonly<{ + readonly queryPlanner: "queryPlanner"; + readonly queryPlannerExtended: "queryPlannerExtended"; + readonly executionStats: "executionStats"; + readonly allPlansExecution: "allPlansExecution"; +}>; + +/** @public */ +export declare type ExplainVerbosity = string; + +/** + * For backwards compatibility, true is interpreted as "allPlansExecution" + * and false as "queryPlanner". Prior to server version 3.6, aggregate() + * ignores the verbosity parameter and executes in "queryPlanner". + * @public + */ +export declare type ExplainVerbosityLike = ExplainVerbosity | boolean; + +/** A MongoDB filter can be some portion of the schema or a set of operators @public */ +export declare type Filter = { + [P in keyof WithId]?: Condition[P]>; +} & RootFilterOperators>; + +/** @public */ +export declare type FilterOperations = T extends Record ? { + [key in keyof T]?: FilterOperators; +} : FilterOperators; + +/** @public */ +export declare interface FilterOperators extends NonObjectIdLikeDocument { + $eq?: TValue; + $gt?: TValue; + $gte?: TValue; + $in?: ReadonlyArray; + $lt?: TValue; + $lte?: TValue; + $ne?: TValue; + $nin?: ReadonlyArray; + $not?: TValue extends string ? FilterOperators | RegExp : FilterOperators; + /** + * When `true`, `$exists` matches the documents that contain the field, + * including documents where the field value is null. + */ + $exists?: boolean; + $type?: BSONType | BSONTypeAlias; + $expr?: Record; + $jsonSchema?: Record; + $mod?: TValue extends number ? [number, number] : never; + $regex?: TValue extends string ? RegExp | BSONRegExp | string : never; + $options?: TValue extends string ? string : never; + $geoIntersects?: { + $geometry: Document; + }; + $geoWithin?: Document; + $near?: Document; + $nearSphere?: Document; + $maxDistance?: number; + $all?: ReadonlyArray; + $elemMatch?: Document; + $size?: TValue extends ReadonlyArray ? number : never; + $bitsAllClear?: BitwiseFilter; + $bitsAllSet?: BitwiseFilter; + $bitsAnyClear?: BitwiseFilter; + $bitsAnySet?: BitwiseFilter; + $rand?: Record; +} + +/** @public */ +export declare class FindCursor extends AbstractCursor { + /* Excluded from this release type: [kFilter] */ + /* Excluded from this release type: [kNumReturned] */ + /* Excluded from this release type: [kBuiltOptions] */ + /* Excluded from this release type: __constructor */ + clone(): FindCursor; + map(transform: (doc: TSchema) => T): FindCursor; + /* Excluded from this release type: _initialize */ + /* Excluded from this release type: getMore */ + /** + * Get the count of documents for this cursor + * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead + */ + count(options?: CountOptions): Promise; + /** Execute the explain for the cursor */ + explain(verbosity?: ExplainVerbosityLike): Promise; + /** Set the cursor query */ + filter(filter: Document): this; + /** + * Set the cursor hint + * + * @param hint - If specified, then the query system will only consider plans using the hinted index. + */ + hint(hint: Hint): this; + /** + * Set the cursor min + * + * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order. + */ + min(min: Document): this; + /** + * Set the cursor max + * + * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order. + */ + max(max: Document): this; + /** + * Set the cursor returnKey. + * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents. + * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields. + * + * @param value - the returnKey value. + */ + returnKey(value: boolean): this; + /** + * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection. + * + * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find. + */ + showRecordId(value: boolean): this; + /** + * Add a query modifier to the cursor query + * + * @param name - The query modifier (must start with $, such as $orderby etc) + * @param value - The modifier value. + */ + addQueryModifier(name: string, value: string | boolean | number | Document): this; + /** + * Add a comment to the cursor query allowing for tracking the comment in the log. + * + * @param value - The comment attached to this query. + */ + comment(value: string): this; + /** + * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise) + * + * @param value - Number of milliseconds to wait before aborting the tailed query. + */ + maxAwaitTimeMS(value: number): this; + /** + * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher) + * + * @param value - Number of milliseconds to wait before aborting the query. + */ + maxTimeMS(value: number): this; + /** + * Add a project stage to the aggregation pipeline + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * By default chaining a projection to your cursor changes the returned type to the generic + * {@link Document} type. + * You should specify a parameterized type to have assertions on your final results. + * + * @example + * ```typescript + * // Best way + * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true }); + * // Flexible way + * const docs: FindCursor = cursor.project({ _id: 0, a: true }); + * ``` + * + * @remarks + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling project, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: FindCursor<{ a: number; b: string }> = coll.find(); + * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true }); + * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray(); + * + * // or always use chaining and save the final cursor + * + * const cursor = coll.find().project<{ a: string }>({ + * _id: 0, + * a: { $convert: { input: '$a', to: 'string' } + * }}); + * ``` + */ + project(value: Document): FindCursor; + /** + * Sets the sort order of the cursor query. + * + * @param sort - The key or keys set for the sort. + * @param direction - The direction of the sorting (1 or -1). + */ + sort(sort: Sort | string, direction?: SortDirection): this; + /** + * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) + * + * @remarks + * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation} + */ + allowDiskUse(allow?: boolean): this; + /** + * Set the collation options for the cursor. + * + * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). + */ + collation(value: CollationOptions): this; + /** + * Set the limit for the cursor. + * + * @param value - The limit for the cursor query. + */ + limit(value: number): this; + /** + * Set the skip for the cursor. + * + * @param value - The skip for the cursor query. + */ + skip(value: number): this; +} + +/** @public */ +export declare interface FindOneAndDeleteOptions extends CommandOperationOptions { + /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/ + hint?: Document; + /** Limits the fields to return for all matching documents. */ + projection?: Document; + /** Determines which document the operation modifies if the query selects multiple documents. */ + sort?: Sort; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Return the ModifyResult instead of the modified document. Defaults to false + */ + includeResultMetadata?: boolean; +} + +/** @public */ +export declare interface FindOneAndReplaceOptions extends CommandOperationOptions { + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/ + hint?: Document; + /** Limits the fields to return for all matching documents. */ + projection?: Document; + /** When set to 'after', returns the updated document rather than the original. The default is 'before'. */ + returnDocument?: ReturnDocument; + /** Determines which document the operation modifies if the query selects multiple documents. */ + sort?: Sort; + /** Upsert the document if it does not exist. */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Return the ModifyResult instead of the modified document. Defaults to false + */ + includeResultMetadata?: boolean; +} + +/** @public */ +export declare interface FindOneAndUpdateOptions extends CommandOperationOptions { + /** Optional list of array filters referenced in filtered positional operators */ + arrayFilters?: Document[]; + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/ + hint?: Document; + /** Limits the fields to return for all matching documents. */ + projection?: Document; + /** When set to 'after', returns the updated document rather than the original. The default is 'before'. */ + returnDocument?: ReturnDocument; + /** Determines which document the operation modifies if the query selects multiple documents. */ + sort?: Sort; + /** Upsert the document if it does not exist. */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Return the ModifyResult instead of the modified document. Defaults to false + */ + includeResultMetadata?: boolean; +} + +/** + * A builder object that is returned from {@link BulkOperationBase#find}. + * Is used to build a write operation that involves a query filter. + * + * @public + */ +export declare class FindOperators { + bulkOperation: BulkOperationBase; + /* Excluded from this release type: __constructor */ + /** Add a multiple update operation to the bulk operation */ + update(updateDocument: Document | Document[]): BulkOperationBase; + /** Add a single update operation to the bulk operation */ + updateOne(updateDocument: Document | Document[]): BulkOperationBase; + /** Add a replace one operation to the bulk operation */ + replaceOne(replacement: Document): BulkOperationBase; + /** Add a delete one operation to the bulk operation */ + deleteOne(): BulkOperationBase; + /** Add a delete many operation to the bulk operation */ + delete(): BulkOperationBase; + /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */ + upsert(): this; + /** Specifies the collation for the query condition. */ + collation(collation: CollationOptions): this; + /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */ + arrayFilters(arrayFilters: Document[]): this; + /** Specifies hint for the bulk operation. */ + hint(hint: Hint): this; +} + +/** + * @public + * @typeParam TSchema - Unused schema definition, deprecated usage, only specify `FindOptions` with no generic + */ +export declare interface FindOptions extends Omit { + /** Sets the limit of documents returned in the query. */ + limit?: number; + /** Set to sort the documents coming back from the query. Array of indexes, `[['a', 1]]` etc. */ + sort?: Sort; + /** The fields to return in the query. Object of fields to either include or exclude (one of, not both), `{'a':1, 'b': 1}` **or** `{'a': 0, 'b': 0}` */ + projection?: Document; + /** Set to skip N documents ahead in your query (useful for pagination). */ + skip?: number; + /** Tell the query to use specific indexes in the query. Object of indexes to use, `{'_id':1}` */ + hint?: Hint; + /** Specify if the cursor can timeout. */ + timeout?: boolean; + /** Specify if the cursor is tailable. */ + tailable?: boolean; + /** Specify if the cursor is a tailable-await cursor. Requires `tailable` to be true */ + awaitData?: boolean; + /** Set the batchSize for the getMoreCommand when iterating over the query results. */ + batchSize?: number; + /** If true, returns only the index keys in the resulting documents. */ + returnKey?: boolean; + /** The inclusive lower bound for a specific index */ + min?: Document; + /** The exclusive upper bound for a specific index */ + max?: Document; + /** Number of milliseconds to wait before aborting the query. */ + maxTimeMS?: number; + /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true */ + maxAwaitTimeMS?: number; + /** The server normally times out idle cursors after an inactivity period (10 minutes) to prevent excess memory use. Set this option to prevent that. */ + noCursorTimeout?: boolean; + /** Specify collation (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). */ + collation?: CollationOptions; + /** Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) */ + allowDiskUse?: boolean; + /** Determines whether to close the cursor after the first batch. Defaults to false. */ + singleBatch?: boolean; + /** For queries against a sharded collection, allows the command (or subsequent getMore commands) to return partial results, rather than an error, if one or more queried shards are unavailable. */ + allowPartialResults?: boolean; + /** Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents. */ + showRecordId?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Option to enable an optimized code path for queries looking for a particular range of `ts` values in the oplog. Requires `tailable` to be true. + * @deprecated Starting from MongoDB 4.4 this flag is not needed and will be ignored. + */ + oplogReplay?: boolean; +} + +/** @public */ +export declare type Flatten = Type extends ReadonlyArray ? Item : Type; + +/** + * @public + * Configuration options for making an AWS encryption key + */ +export declare interface GCPEncryptionKeyOptions { + /** + * GCP project ID + */ + projectId: string; + /** + * Location name (e.g. "global") + */ + location: string; + /** + * Key ring name + */ + keyRing: string; + /** + * Key name + */ + keyName: string; + /** + * Key version + */ + keyVersion?: string | undefined; + /** + * KMS URL, defaults to `https://www.googleapis.com/auth/cloudkms` + */ + endpoint?: string | undefined; +} + +/** @public */ +export declare type GenericListener = (...args: any[]) => void; + +/** + * Constructor for a streaming GridFS interface + * @public + */ +export declare class GridFSBucket extends TypedEventEmitter { + /* Excluded from this release type: s */ + /** + * When the first call to openUploadStream is made, the upload stream will + * check to see if it needs to create the proper indexes on the chunks and + * files collections. This event is fired either when 1) it determines that + * no index creation is necessary, 2) when it successfully creates the + * necessary indexes. + * @event + */ + static readonly INDEX: "index"; + constructor(db: Db, options?: GridFSBucketOptions); + /** + * Returns a writable stream (GridFSBucketWriteStream) for writing + * buffers to GridFS. The stream's 'id' property contains the resulting + * file's id. + * + * @param filename - The value of the 'filename' key in the files doc + * @param options - Optional settings. + */ + openUploadStream(filename: string, options?: GridFSBucketWriteStreamOptions): GridFSBucketWriteStream; + /** + * Returns a writable stream (GridFSBucketWriteStream) for writing + * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting + * file's id. + */ + openUploadStreamWithId(id: ObjectId, filename: string, options?: GridFSBucketWriteStreamOptions): GridFSBucketWriteStream; + /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */ + openDownloadStream(id: ObjectId, options?: GridFSBucketReadStreamOptions): GridFSBucketReadStream; + /** + * Deletes a file with the given id + * + * @param id - The id of the file doc + */ + delete(id: ObjectId): Promise; + /** Convenience wrapper around find on the files collection */ + find(filter?: Filter, options?: FindOptions): FindCursor; + /** + * Returns a readable stream (GridFSBucketReadStream) for streaming the + * file with the given name from GridFS. If there are multiple files with + * the same name, this will stream the most recent file with the given name + * (as determined by the `uploadDate` field). You can set the `revision` + * option to change this behavior. + */ + openDownloadStreamByName(filename: string, options?: GridFSBucketReadStreamOptionsWithRevision): GridFSBucketReadStream; + /** + * Renames the file with the given _id to the given string + * + * @param id - the id of the file to rename + * @param filename - new name for the file + */ + rename(id: ObjectId, filename: string): Promise; + /** Removes this bucket's files collection, followed by its chunks collection. */ + drop(): Promise; +} + +/** @public */ +export declare type GridFSBucketEvents = { + index(): void; +}; + +/** @public */ +export declare interface GridFSBucketOptions extends WriteConcernOptions { + /** The 'files' and 'chunks' collections will be prefixed with the bucket name followed by a dot. */ + bucketName?: string; + /** Number of bytes stored in each chunk. Defaults to 255KB */ + chunkSizeBytes?: number; + /** Read preference to be passed to read operations */ + readPreference?: ReadPreference; + /* Excluded from this release type: timeoutMS */ +} + +/* Excluded from this release type: GridFSBucketPrivate */ + +/** + * A readable stream that enables you to read buffers from GridFS. + * + * Do not instantiate this class directly. Use `openDownloadStream()` instead. + * @public + */ +export declare class GridFSBucketReadStream extends Readable { + /* Excluded from this release type: s */ + /** + * Fires when the stream loaded the file document corresponding to the provided id. + * @event + */ + static readonly FILE: "file"; + /* Excluded from this release type: __constructor */ + /* Excluded from this release type: _read */ + /** + * Sets the 0-based offset in bytes to start streaming from. Throws + * an error if this stream has entered flowing mode + * (e.g. if you've already called `on('data')`) + * + * @param start - 0-based offset in bytes to start streaming from + */ + start(start?: number): this; + /** + * Sets the 0-based offset in bytes to start streaming from. Throws + * an error if this stream has entered flowing mode + * (e.g. if you've already called `on('data')`) + * + * @param end - Offset in bytes to stop reading at + */ + end(end?: number): this; + /** + * Marks this stream as aborted (will never push another `data` event) + * and kills the underlying cursor. Will emit the 'end' event, and then + * the 'close' event once the cursor is successfully killed. + */ + abort(): Promise; +} + +/** @public */ +export declare interface GridFSBucketReadStreamOptions { + sort?: Sort; + skip?: number; + /** + * 0-indexed non-negative byte offset from the beginning of the file + */ + start?: number; + /** + * 0-indexed non-negative byte offset to the end of the file contents + * to be returned by the stream. `end` is non-inclusive + */ + end?: number; + /* Excluded from this release type: timeoutMS */ +} + +/** @public */ +export declare interface GridFSBucketReadStreamOptionsWithRevision extends GridFSBucketReadStreamOptions { + /** The revision number relative to the oldest file with the given filename. 0 + * gets you the oldest file, 1 gets you the 2nd oldest, -1 gets you the + * newest. */ + revision?: number; +} + +/* Excluded from this release type: GridFSBucketReadStreamPrivate */ + +/** + * A writable stream that enables you to write buffers to GridFS. + * + * Do not instantiate this class directly. Use `openUploadStream()` instead. + * @public + */ +export declare class GridFSBucketWriteStream extends Writable { + bucket: GridFSBucket; + /** A Collection instance where the file's chunks are stored */ + chunks: Collection; + /** A Collection instance where the file's GridFSFile document is stored */ + files: Collection; + /** The name of the file */ + filename: string; + /** Options controlling the metadata inserted along with the file */ + options: GridFSBucketWriteStreamOptions; + /** Indicates the stream is finished uploading */ + done: boolean; + /** The ObjectId used for the `_id` field on the GridFSFile document */ + id: ObjectId; + /** The number of bytes that each chunk will be limited to */ + chunkSizeBytes: number; + /** Space used to store a chunk currently being inserted */ + bufToStore: Buffer; + /** Accumulates the number of bytes inserted as the stream uploads chunks */ + length: number; + /** Accumulates the number of chunks inserted as the stream uploads file contents */ + n: number; + /** Tracks the current offset into the buffered bytes being uploaded */ + pos: number; + /** Contains a number of properties indicating the current state of the stream */ + state: { + /** If set the stream has ended */ + streamEnd: boolean; + /** Indicates the number of chunks that still need to be inserted to exhaust the current buffered data */ + outstandingRequests: number; + /** If set an error occurred during insertion */ + errored: boolean; + /** If set the stream was intentionally aborted */ + aborted: boolean; + }; + /** The write concern setting to be used with every insert operation */ + writeConcern?: WriteConcern; + /** + * The document containing information about the inserted file. + * This property is defined _after_ the finish event has been emitted. + * It will remain `null` if an error occurs. + * + * @example + * ```ts + * fs.createReadStream('file.txt') + * .pipe(bucket.openUploadStream('file.txt')) + * .on('finish', function () { + * console.log(this.gridFSFile) + * }) + * ``` + */ + gridFSFile: GridFSFile | null; + /* Excluded from this release type: __constructor */ + /* Excluded from this release type: _construct */ + /* Excluded from this release type: _write */ + /* Excluded from this release type: _final */ + /** + * Places this write stream into an aborted state (all future writes fail) + * and deletes all chunks that have already been written. + */ + abort(): Promise; +} + +/** @public */ +export declare interface GridFSBucketWriteStreamOptions extends WriteConcernOptions { + /** Overwrite this bucket's chunkSizeBytes for this file */ + chunkSizeBytes?: number; + /** Custom file id for the GridFS file. */ + id?: ObjectId; + /** Object to store in the file document's `metadata` field */ + metadata?: Document; + /** + * String to store in the file document's `contentType` field. + * @deprecated Will be removed in the next major version. Add a contentType field to the metadata document instead. + */ + contentType?: string; + /** + * Array of strings to store in the file document's `aliases` field. + * @deprecated Will be removed in the next major version. Add an aliases field to the metadata document instead. + */ + aliases?: string[]; + /* Excluded from this release type: timeoutMS */ +} + +/** @public */ +export declare interface GridFSChunk { + _id: ObjectId; + files_id: ObjectId; + n: number; + data: Buffer | Uint8Array; +} + +/** @public */ +export declare interface GridFSFile { + _id: ObjectId; + length: number; + chunkSize: number; + filename: string; + metadata?: Document; + uploadDate: Date; + /** @deprecated Will be removed in the next major version. */ + contentType?: string; + /** @deprecated Will be removed in the next major version. */ + aliases?: string[]; +} + +/** @public */ +export declare const GSSAPICanonicalizationValue: Readonly<{ + readonly on: true; + readonly off: false; + readonly none: "none"; + readonly forward: "forward"; + readonly forwardAndReverse: "forwardAndReverse"; +}>; + +/** @public */ +export declare type GSSAPICanonicalizationValue = (typeof GSSAPICanonicalizationValue)[keyof typeof GSSAPICanonicalizationValue]; + +/* Excluded from this release type: HandshakeDocument */ + +/** @public */ +export declare interface HedgeOptions { + /** Explicitly enable or disable hedged reads. */ + enabled?: boolean; +} + +/** @public */ +export declare type Hint = string | Document; + +/** @public */ +export declare class HostAddress { + host: string | undefined; + port: number | undefined; + socketPath: string | undefined; + isIPv6: boolean; + constructor(hostString: string); + inspect(): string; + toString(): string; + static fromString(this: void, s: string): HostAddress; + static fromHostPort(host: string, port: number): HostAddress; + static fromSrvRecord({ name, port }: SrvRecord): HostAddress; + toHostPort(): { + host: string; + port: number; + }; +} + +/** + * @public + * @experimental + */ +export declare interface IdPServerInfo { + issuer: string; + clientId: string; + requestScopes?: string[]; +} + +/** + * @public + * @experimental + */ +export declare interface IdPServerResponse { + accessToken: string; + expiresInSeconds?: number; + refreshToken?: string; +} + +/** @public */ +export declare interface IndexDescription extends Pick { + collation?: CollationOptions; + name?: string; + key: { + [key: string]: IndexDirection; + } | Map; +} + +/** @public */ +export declare type IndexDescriptionCompact = Record; + +/** + * @public + * The index information returned by the listIndexes command. https://www.mongodb.com/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes + */ +export declare type IndexDescriptionInfo = Omit & { + key: { + [key: string]: IndexDirection; + }; + v?: IndexDescription['version']; +} & Document; + +/** @public */ +export declare type IndexDirection = -1 | 1 | '2d' | '2dsphere' | 'text' | 'geoHaystack' | 'hashed' | number; + +/** @public */ +export declare interface IndexInformationOptions extends ListIndexesOptions { + /** + * When `true`, an array of index descriptions is returned. + * When `false`, the driver returns an object that with keys corresponding to index names with values + * corresponding to the entries of the indexes' key. + * + * For example, the given the following indexes: + * ``` + * [ { name: 'a_1', key: { a: 1 } }, { name: 'b_1_c_1' , key: { b: 1, c: 1 } }] + * ``` + * + * When `full` is `true`, the above array is returned. When `full` is `false`, the following is returned: + * ``` + * { + * 'a_1': [['a', 1]], + * 'b_1_c_1': [['b', 1], ['c', 1]], + * } + * ``` + */ + full?: boolean; +} + +/** @public */ +export declare type IndexSpecification = OneOrMore>; + +/** Given an object shaped type, return the type of the _id field or default to ObjectId @public */ +export declare type InferIdType = TSchema extends { + _id: infer IdType; +} ? Record extends IdType ? never : IdType : TSchema extends { + _id?: infer IdType; +} ? unknown extends IdType ? ObjectId : IdType : ObjectId; + +/** @public */ +export declare interface InsertManyResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */ + acknowledged: boolean; + /** The number of inserted documents for this operations */ + insertedCount: number; + /** Map of the index of the inserted document to the id of the inserted document */ + insertedIds: { + [key: number]: InferIdType; + }; +} + +/** @public */ +export declare interface InsertOneModel { + /** The document to insert. */ + document: OptionalId; +} + +/** @public */ +export declare interface InsertOneOptions extends CommandOperationOptions { + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** Force server to assign _id values instead of driver. */ + forceServerObjectId?: boolean; +} + +/** @public */ +export declare interface InsertOneResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */ + acknowledged: boolean; + /** The identifier that was inserted. If the server generated the identifier, this value will be null as the driver does not have access to that data */ + insertedId: InferIdType; +} + +export { Int32 } + +/** @public */ +export declare type IntegerType = number | Int32 | Long | bigint; + +/* Excluded from this release type: InternalAbstractCursorOptions */ + +/** @public */ +export declare type IsAny = true extends false & Type ? ResultIfAny : ResultIfNotAny; + +/** + * Helper types for dot-notation filter attributes + */ +/** @public */ +export declare type Join = T extends [] ? '' : T extends [string | number] ? `${T[0]}` : T extends [string | number, ...infer R] ? `${T[0]}${D}${Join}` : string; + +/* Excluded from this release type: JSTypeOf */ + +/* Excluded from this release type: kBeforeHandshake */ + +/* Excluded from this release type: kBuiltOptions */ + +/* Excluded from this release type: kCancellationToken */ + +/* Excluded from this release type: kCancellationToken_2 */ + +/* Excluded from this release type: kCancelled */ + +/* Excluded from this release type: kCancelled_2 */ + +/* Excluded from this release type: kCheckedOut */ + +/* Excluded from this release type: kClient */ + +/* Excluded from this release type: kClosed */ + +/* Excluded from this release type: kClosed_2 */ + +/* Excluded from this release type: kConnectionCounter */ + +/* Excluded from this release type: kConnections */ + +/* Excluded from this release type: kCursorStream */ + +/* Excluded from this release type: kDecorateResult */ + +/* Excluded from this release type: kDocuments */ + +/* Excluded from this release type: kErrorLabels */ + +/** @public */ +export declare type KeysOfAType = { + [key in keyof TSchema]: NonNullable extends Type ? key : never; +}[keyof TSchema]; + +/** @public */ +export declare type KeysOfOtherType = { + [key in keyof TSchema]: NonNullable extends Type ? never : key; +}[keyof TSchema]; + +/* Excluded from this release type: kFilter */ + +/* Excluded from this release type: kGeneration */ + +/* Excluded from this release type: kId */ + +/* Excluded from this release type: kInit */ + +/* Excluded from this release type: kInitialized */ + +/* Excluded from this release type: kInternalClient */ + +/* Excluded from this release type: kKilled */ + +/* Excluded from this release type: kMetrics */ + +/* Excluded from this release type: kMinPoolSizeTimer */ + +/* Excluded from this release type: kMode */ + +/* Excluded from this release type: kMonitorId */ + +/** + * @public + * Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. + */ +export declare interface KMSProviders { + /** + * Configuration options for using 'aws' as your KMS provider + */ + aws?: { + /** + * The access key used for the AWS KMS provider + */ + accessKeyId: string; + /** + * The secret access key used for the AWS KMS provider + */ + secretAccessKey: string; + /** + * An optional AWS session token that will be used as the + * X-Amz-Security-Token header for AWS requests. + */ + sessionToken?: string; + } | Record; + /** + * Configuration options for using 'local' as your KMS provider + */ + local?: { + /** + * The master key used to encrypt/decrypt data keys. + * A 96-byte long Buffer or base64 encoded string. + */ + key: Buffer | string; + }; + /** + * Configuration options for using 'kmip' as your KMS provider + */ + kmip?: { + /** + * The output endpoint string. + * The endpoint consists of a hostname and port separated by a colon. + * E.g. "example.com:123". A port is always present. + */ + endpoint?: string; + }; + /** + * Configuration options for using 'azure' as your KMS provider + */ + azure?: { + /** + * The tenant ID identifies the organization for the account + */ + tenantId: string; + /** + * The client ID to authenticate a registered application + */ + clientId: string; + /** + * The client secret to authenticate a registered application + */ + clientSecret: string; + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * This is optional, and only needed if customer is using a non-commercial Azure instance + * (e.g. a government or China account, which use different URLs). + * Defaults to "login.microsoftonline.com" + */ + identityPlatformEndpoint?: string | undefined; + } | { + /** + * If present, an access token to authenticate with Azure. + */ + accessToken: string; + } | Record; + /** + * Configuration options for using 'gcp' as your KMS provider + */ + gcp?: { + /** + * The service account email to authenticate + */ + email: string; + /** + * A PKCS#8 encrypted key. This can either be a base64 string or a binary representation + */ + privateKey: string | Buffer; + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * Defaults to "oauth2.googleapis.com" + */ + endpoint?: string | undefined; + } | { + /** + * If present, an access token to authenticate with GCP. + */ + accessToken: string; + } | Record; +} + +/* Excluded from this release type: kNamespace */ + +/* Excluded from this release type: kNumReturned */ + +/* Excluded from this release type: kOptions */ + +/* Excluded from this release type: kOptions_2 */ + +/* Excluded from this release type: kOptions_3 */ + +/* Excluded from this release type: kPending */ + +/* Excluded from this release type: kPinnedConnection */ + +/* Excluded from this release type: kPipeline */ + +/* Excluded from this release type: kPoolState */ + +/* Excluded from this release type: kProcessingWaitQueue */ + +/* Excluded from this release type: kServer */ + +/* Excluded from this release type: kServer_2 */ + +/* Excluded from this release type: kServer_3 */ + +/* Excluded from this release type: kServerError */ + +/* Excluded from this release type: kServerSession */ + +/* Excluded from this release type: kServiceGenerations */ + +/* Excluded from this release type: kSession */ + +/* Excluded from this release type: kSession_2 */ + +/* Excluded from this release type: kSnapshotEnabled */ + +/* Excluded from this release type: kSnapshotTime */ + +/* Excluded from this release type: kTransform */ + +/* Excluded from this release type: kTxnNumberIncrement */ + +/* Excluded from this release type: kWaitQueue */ + +/* Excluded from this release type: kWaitQueue_2 */ + +/** @public */ +export declare const LEGAL_TCP_SOCKET_OPTIONS: readonly ["family", "hints", "localAddress", "localPort", "lookup"]; + +/** @public */ +export declare const LEGAL_TLS_SOCKET_OPTIONS: readonly ["ALPNProtocols", "ca", "cert", "checkServerIdentity", "ciphers", "crl", "ecdhCurve", "key", "minDHSize", "passphrase", "pfx", "rejectUnauthorized", "secureContext", "secureProtocol", "servername", "session"]; + +/* Excluded from this release type: List */ + +/** @public */ +export declare class ListCollectionsCursor | CollectionInfo = Pick | CollectionInfo> extends AbstractCursor { + parent: Db; + filter: Document; + options?: ListCollectionsOptions; + constructor(db: Db, filter: Document, options?: ListCollectionsOptions); + clone(): ListCollectionsCursor; + /* Excluded from this release type: _initialize */ +} + +/** @public */ +export declare interface ListCollectionsOptions extends Omit { + /** Since 4.0: If true, will only return the collection name in the response, and will omit additional info */ + nameOnly?: boolean; + /** Since 4.0: If true and nameOnly is true, allows a user without the required privilege (i.e. listCollections action on the database) to run the command when access control is enforced. */ + authorizedCollections?: boolean; + /** The batchSize for the returned command cursor or if pre 2.8 the systems batch collection */ + batchSize?: number; +} + +/** @public */ +export declare interface ListDatabasesOptions extends CommandOperationOptions { + /** A query predicate that determines which databases are listed */ + filter?: Document; + /** A flag to indicate whether the command should return just the database names, or return both database names and size information */ + nameOnly?: boolean; + /** A flag that determines which databases are returned based on the user privileges when access control is enabled */ + authorizedDatabases?: boolean; +} + +/** @public */ +export declare interface ListDatabasesResult { + databases: ({ + name: string; + sizeOnDisk?: number; + empty?: boolean; + } & Document)[]; + totalSize?: number; + totalSizeMb?: number; + ok: 1 | 0; +} + +/** @public */ +export declare class ListIndexesCursor extends AbstractCursor { + parent: Collection; + options?: ListIndexesOptions; + constructor(collection: Collection, options?: ListIndexesOptions); + clone(): ListIndexesCursor; + /* Excluded from this release type: _initialize */ +} + +/** @public */ +export declare type ListIndexesOptions = AbstractCursorOptions; + +/** @public */ +export declare class ListSearchIndexesCursor extends AggregationCursor<{ + name: string; +}> { + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare type ListSearchIndexesOptions = Omit; + +/* Excluded from this release type: Log */ + +/* Excluded from this release type: LogComponentSeveritiesClientOptions */ + +/* Excluded from this release type: LogConvertible */ + +/* Excluded from this release type: Loggable */ + +/* Excluded from this release type: LoggableCommandFailedEvent */ + +/* Excluded from this release type: LoggableCommandSucceededEvent */ + +/* Excluded from this release type: LoggableEvent */ + +/* Excluded from this release type: LoggableServerHeartbeatFailedEvent */ + +/* Excluded from this release type: LoggableServerHeartbeatStartedEvent */ + +/* Excluded from this release type: LoggableServerHeartbeatSucceededEvent */ +export { Long } + +/** @public */ +export declare type MatchKeysAndValues = Readonly> & Record; + +export { MaxKey } + +/* Excluded from this release type: MessageHeader */ +export { MinKey } + +/** @public */ +export declare interface ModifyResult { + value: WithId | null; + lastErrorObject?: Document; + ok: 0 | 1; +} + +/** @public */ +export declare const MONGO_CLIENT_EVENTS: readonly ["connectionPoolCreated", "connectionPoolReady", "connectionPoolCleared", "connectionPoolClosed", "connectionCreated", "connectionReady", "connectionClosed", "connectionCheckOutStarted", "connectionCheckOutFailed", "connectionCheckedOut", "connectionCheckedIn", "commandStarted", "commandSucceeded", "commandFailed", "serverOpening", "serverClosed", "serverDescriptionChanged", "topologyOpening", "topologyClosed", "topologyDescriptionChanged", "error", "timeout", "close", "serverHeartbeatStarted", "serverHeartbeatSucceeded", "serverHeartbeatFailed"]; + +/** + * An error generated when the driver API is used incorrectly + * + * @privateRemarks + * Should **never** be directly instantiated + * + * @public + * @category Error + */ +export declare class MongoAPIError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { + cause?: Error; + }); + get name(): string; +} + +/** + * A error generated when the user attempts to authenticate + * via AWS, but fails + * + * @public + * @category Error + */ +export declare class MongoAWSError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { + cause?: Error; + }); + get name(): string; +} + +/** + * A error generated when the user attempts to authenticate + * via Azure, but fails. + * + * @public + * @category Error + */ +export declare class MongoAzureError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error generated when a batch command is re-executed after one of the commands in the batch + * has failed + * + * @public + * @category Error + */ +export declare class MongoBatchReExecutionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * An error indicating an unsuccessful Bulk Write + * @public + * @category Error + */ +export declare class MongoBulkWriteError extends MongoServerError { + result: BulkWriteResult; + writeErrors: OneOrMore; + err?: WriteConcernError; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(error: { + message: string; + code: number; + writeErrors?: WriteError[]; + } | WriteConcernError | AnyError, result: BulkWriteResult); + get name(): string; + /** Number of documents inserted. */ + get insertedCount(): number; + /** Number of documents matched for update. */ + get matchedCount(): number; + /** Number of documents modified. */ + get modifiedCount(): number; + /** Number of documents deleted. */ + get deletedCount(): number; + /** Number of documents upserted. */ + get upsertedCount(): number; + /** Inserted document generated Id's, hash key is the index of the originating operation */ + get insertedIds(): { + [key: number]: any; + }; + /** Upserted document generated Id's, hash key is the index of the originating operation */ + get upsertedIds(): { + [key: number]: any; + }; +} + +/** + * An error generated when a ChangeStream operation fails to execute. + * + * @public + * @category Error + */ +export declare class MongoChangeStreamError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * The **MongoClient** class is a class that allows for making Connections to MongoDB. + * @public + * + * @remarks + * The programmatically provided options take precedence over the URI options. + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * // Enable command monitoring for debugging + * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true }); + * + * client.on('commandStarted', started => console.log(started)); + * client.db().collection('pets'); + * await client.insertOne({ name: 'spot', kind: 'dog' }); + * ``` + */ +export declare class MongoClient extends TypedEventEmitter { + /* Excluded from this release type: s */ + /* Excluded from this release type: topology */ + /* Excluded from this release type: mongoLogger */ + /* Excluded from this release type: connectionLock */ + /* Excluded from this release type: [kOptions] */ + constructor(url: string, options?: MongoClientOptions); + /* Excluded from this release type: checkForNonGenuineHosts */ + /** @see MongoOptions */ + get options(): Readonly; + get serverApi(): Readonly; + /* Excluded from this release type: monitorCommands */ + /* Excluded from this release type: monitorCommands */ + /* Excluded from this release type: autoEncrypter */ + get readConcern(): ReadConcern | undefined; + get writeConcern(): WriteConcern | undefined; + get readPreference(): ReadPreference; + get bsonOptions(): BSONSerializeOptions; + /** + * Connect to MongoDB using a url + * + * @see docs.mongodb.org/manual/reference/connection-string/ + */ + connect(): Promise; + /* Excluded from this release type: _connect */ + /** + * Close the client and its underlying connections + * + * @param force - Force close, emitting no events + */ + close(force?: boolean): Promise; + /** + * Create a new Db instance sharing the current socket connections. + * + * @param dbName - The name of the database we want to use. If not provided, use database name from connection string. + * @param options - Optional settings for Db construction + */ + db(dbName?: string, options?: DbOptions): Db; + /** + * Connect to MongoDB using a url + * + * @remarks + * The programmatically provided options take precedence over the URI options. + * + * @see https://www.mongodb.com/docs/manual/reference/connection-string/ + */ + static connect(url: string, options?: MongoClientOptions): Promise; + /** + * Creates a new ClientSession. When using the returned session in an operation + * a corresponding ServerSession will be created. + * + * @remarks + * A ClientSession instance may only be passed to operations being performed on the same + * MongoClient it was started from. + */ + startSession(options?: ClientSessionOptions): ClientSession; + /** + * A convenience method for creating and handling the clean up of a ClientSession. + * The session will always be ended when the executor finishes. + * + * @param executor - An executor function that all operations using the provided session must be invoked in + * @param options - optional settings for the session + */ + withSession(executor: WithSessionCallback): Promise; + withSession(options: ClientSessionOptions, executor: WithSessionCallback): Promise; + /** + * Create a new Change Stream, watching for new changes (insertions, updates, + * replacements, deletions, and invalidations) in this cluster. Will ignore all + * changes to system collections, as well as the local, admin, and config databases. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to provide the schema that may be defined for all the data within the current cluster + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TSchema - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch>(pipeline?: Document[], options?: ChangeStreamOptions): ChangeStream; +} + +/* Excluded from this release type: MongoClientAuthProviders */ + +/** @public */ +export declare type MongoClientEvents = Pick & { + open(mongoClient: MongoClient): void; +}; + +/** + * Describes all possible URI query options for the mongo client + * @public + * @see https://www.mongodb.com/docs/manual/reference/connection-string + */ +export declare interface MongoClientOptions extends BSONSerializeOptions, SupportedNodeConnectionOptions { + /** Specifies the name of the replica set, if the mongod is a member of a replica set. */ + replicaSet?: string; + /* Excluded from this release type: timeoutMS */ + /** Enables or disables TLS/SSL for the connection. */ + tls?: boolean; + /** A boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.) */ + ssl?: boolean; + /** Specifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key. */ + tlsCertificateKeyFile?: string; + /** Specifies the password to de-crypt the tlsCertificateKeyFile. */ + tlsCertificateKeyFilePassword?: string; + /** Specifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance. */ + tlsCAFile?: string; + /** Specifies the location of a local CRL .pem file that contains the client revokation list. */ + tlsCRLFile?: string; + /** Bypasses validation of the certificates presented by the mongod/mongos instance */ + tlsAllowInvalidCertificates?: boolean; + /** Disables hostname validation of the certificate presented by the mongod/mongos instance. */ + tlsAllowInvalidHostnames?: boolean; + /** Disables various certificate validations. */ + tlsInsecure?: boolean; + /** The time in milliseconds to attempt a connection before timing out. */ + connectTimeoutMS?: number; + /** The time in milliseconds to attempt a send or receive on a socket before the attempt times out. */ + socketTimeoutMS?: number; + /** An array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance. */ + compressors?: CompressorName[] | string; + /** An integer that specifies the compression level if using zlib for network compression. */ + zlibCompressionLevel?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | undefined; + /** The maximum number of hosts to connect to when using an srv connection string, a setting of `0` means unlimited hosts */ + srvMaxHosts?: number; + /** + * Modifies the srv URI to look like: + * + * `_{srvServiceName}._tcp.{hostname}.{domainname}` + * + * Querying this DNS URI is expected to respond with SRV records + */ + srvServiceName?: string; + /** The maximum number of connections in the connection pool. */ + maxPoolSize?: number; + /** The minimum number of connections in the connection pool. */ + minPoolSize?: number; + /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */ + maxConnecting?: number; + /** The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed. */ + maxIdleTimeMS?: number; + /** The maximum time in milliseconds that a thread can wait for a connection to become available. */ + waitQueueTimeoutMS?: number; + /** Specify a read concern for the collection (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcernLike; + /** The level of isolation */ + readConcernLevel?: ReadConcernLevel; + /** Specifies the read preferences for this connection */ + readPreference?: ReadPreferenceMode | ReadPreference; + /** Specifies, in seconds, how stale a secondary can be before the client stops using it for read operations. */ + maxStalenessSeconds?: number; + /** Specifies the tags document as a comma-separated list of colon-separated key-value pairs. */ + readPreferenceTags?: TagSet[]; + /** The auth settings for when connection to server. */ + auth?: Auth; + /** Specify the database name associated with the user’s credentials. */ + authSource?: string; + /** Specify the authentication mechanism that MongoDB will use to authenticate the connection. */ + authMechanism?: AuthMechanism; + /** Specify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs. */ + authMechanismProperties?: AuthMechanismProperties; + /** The size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances. */ + localThresholdMS?: number; + /** Specifies how long (in milliseconds) to block for server selection before throwing an exception. */ + serverSelectionTimeoutMS?: number; + /** heartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one. */ + heartbeatFrequencyMS?: number; + /** Sets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort. */ + minHeartbeatFrequencyMS?: number; + /** The name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections */ + appName?: string; + /** Enables retryable reads. */ + retryReads?: boolean; + /** Enable retryable writes. */ + retryWrites?: boolean; + /** Allow a driver to force a Single topology type with a connection string containing one host */ + directConnection?: boolean; + /** Instruct the driver it is connecting to a load balancer fronting a mongos like service */ + loadBalanced?: boolean; + /** + * The write concern w value + * @deprecated Please use the `writeConcern` option instead + */ + w?: W; + /** + * The write concern timeout + * @deprecated Please use the `writeConcern` option instead + */ + wtimeoutMS?: number; + /** + * The journal write concern + * @deprecated Please use the `writeConcern` option instead + */ + journal?: boolean; + /** + * A MongoDB WriteConcern, which describes the level of acknowledgement + * requested from MongoDB for write operations. + * + * @see https://www.mongodb.com/docs/manual/reference/write-concern/ + */ + writeConcern?: WriteConcern | WriteConcernSettings; + /** TCP Connection no delay */ + noDelay?: boolean; + /** Force server to assign `_id` values instead of driver */ + forceServerObjectId?: boolean; + /** A primary key factory function for generation of custom `_id` keys */ + pkFactory?: PkFactory; + /** Enable command monitoring for this client */ + monitorCommands?: boolean; + /** Server API version */ + serverApi?: ServerApi | ServerApiVersion; + /** + * Optionally enable in-use auto encryption + * + * @remarks + * Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error + * (see [libmongocrypt: Auto Encryption Allow-List](https://github.com/mongodb/specifications/blob/master/source/client-side-encryption/client-side-encryption.rst#libmongocrypt-auto-encryption-allow-list)). To bypass automatic encryption for all operations, set bypassAutoEncryption=true in AutoEncryptionOpts. + * + * Automatic encryption requires the authenticated user to have the [listCollections privilege action](https://www.mongodb.com/docs/manual/reference/command/listCollections/#dbcmd.listCollections). + * + * If a MongoClient with a limited connection pool size (i.e a non-zero maxPoolSize) is configured with AutoEncryptionOptions, a separate internal MongoClient is created if any of the following are true: + * - AutoEncryptionOptions.keyVaultClient is not passed. + * - AutoEncryptionOptions.bypassAutomaticEncryption is false. + * + * If an internal MongoClient is created, it is configured with the same options as the parent MongoClient except minPoolSize is set to 0 and AutoEncryptionOptions is omitted. + */ + autoEncryption?: AutoEncryptionOptions; + /** Allows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver */ + driverInfo?: DriverInfo; + /** Configures a Socks5 proxy host used for creating TCP connections. */ + proxyHost?: string; + /** Configures a Socks5 proxy port used for creating TCP connections. */ + proxyPort?: number; + /** Configures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication. */ + proxyUsername?: string; + /** Configures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication. */ + proxyPassword?: string; + /** Instructs the driver monitors to use a specific monitoring mode */ + serverMonitoringMode?: ServerMonitoringMode; + /* Excluded from this release type: srvPoller */ + /* Excluded from this release type: connectionType */ + /* Excluded from this release type: mongodbLogPath */ + /* Excluded from this release type: mongodbLogComponentSeverities */ + /* Excluded from this release type: mongodbLogMaxDocumentLength */ + /* Excluded from this release type: __index */ +} + +/* Excluded from this release type: MongoClientPrivate */ + +/** + * An error generated when a feature that is not enabled or allowed for the current server + * configuration is used + * + * + * @public + * @category Error + */ +export declare class MongoCompatibilityError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * A representation of the credentials used by MongoDB + * @public + */ +export declare class MongoCredentials { + /** The username used for authentication */ + readonly username: string; + /** The password used for authentication */ + readonly password: string; + /** The database that the user should authenticate against */ + readonly source: string; + /** The method used to authenticate */ + readonly mechanism: AuthMechanism; + /** Special properties used by some types of auth mechanisms */ + readonly mechanismProperties: AuthMechanismProperties; + constructor(options: MongoCredentialsOptions); + /** Determines if two MongoCredentials objects are equivalent */ + equals(other: MongoCredentials): boolean; + /** + * If the authentication mechanism is set to "default", resolves the authMechanism + * based on the server version and server supported sasl mechanisms. + * + * @param hello - A hello response from the server + */ + resolveAuthMechanism(hello: Document | null): MongoCredentials; + validate(): void; + static merge(creds: MongoCredentials | undefined, options: Partial): MongoCredentials; +} + +/** @public */ +export declare interface MongoCredentialsOptions { + username?: string; + password: string; + source: string; + db?: string; + mechanism?: AuthMechanism; + mechanismProperties: AuthMechanismProperties; +} + +/** + * @public + * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials. + */ +export declare class MongoCryptAzureKMSRequestError extends MongoCryptError { + /** The body of the http response that failed, if present. */ + body?: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, body?: Document); + get name(): string; +} + +/** + * @public + * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys + */ +export declare class MongoCryptCreateDataKeyError extends MongoCryptError { + encryptedFields: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(encryptedFields: Document, { cause }: { + cause: Error; + }); + get name(): string; +} + +/** + * @public + * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection + */ +export declare class MongoCryptCreateEncryptedCollectionError extends MongoCryptError { + encryptedFields: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(encryptedFields: Document, { cause }: { + cause: Error; + }); + get name(): string; +} + +/* Excluded from this release type: MongocryptdManager */ + +/** + * @public + * An error indicating that something went wrong specifically with MongoDB Client Encryption + */ +export declare class MongoCryptError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { + cause?: Error; + }); + get name(): string; +} + +/** + * @public + * + * An error indicating an invalid argument was provided to an encryption API. + */ +export declare class MongoCryptInvalidArgumentError extends MongoCryptError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** @public */ +export declare class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError { + get name(): string; +} + +/** + * An error thrown when an attempt is made to read from a cursor that has been exhausted + * + * @public + * @category Error + */ +export declare class MongoCursorExhaustedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * An error thrown when the user attempts to add options to a cursor that has already been + * initialized + * + * @public + * @category Error + */ +export declare class MongoCursorInUseError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * @public + * + * A class representing a collection's namespace. This class enforces (through Typescript) that + * the `collection` portion of the namespace is defined and should only be + * used in scenarios where this can be guaranteed. + */ +export declare class MongoDBCollectionNamespace extends MongoDBNamespace { + collection: string; + constructor(db: string, collection: string); + static fromString(namespace?: string): MongoDBCollectionNamespace; +} + +/* Excluded from this release type: MongoDBLogWritable */ + +/** @public */ +export declare class MongoDBNamespace { + db: string; + collection?: string | undefined; + /** + * Create a namespace object + * + * @param db - database name + * @param collection - collection name + */ + constructor(db: string, collection?: string | undefined); + toString(): string; + withCollection(collection: string): MongoDBCollectionNamespace; + static fromString(namespace?: string): MongoDBNamespace; +} + +/* Excluded from this release type: MongoDBResponse */ + +/* Excluded from this release type: MongoDBResponseConstructor */ + +/** + * An error generated when the driver fails to decompress + * data received from the server. + * + * @public + * @category Error + */ +export declare class MongoDecompressionError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error generated by the driver + * + * @public + * @category Error + */ +export declare class MongoDriverError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { + cause?: Error; + }); + get name(): string; +} + +/** + * @public + * @category Error + * + * @privateRemarks + * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument + */ +export declare class MongoError extends Error { + /* Excluded from this release type: [kErrorLabels] */ + /** + * This is a number in MongoServerError and a string in MongoDriverError + * @privateRemarks + * Define the type override on the subclasses when we can use the override keyword + */ + code?: number | string; + topologyVersion?: TopologyVersion; + connectionGeneration?: number; + cause?: Error; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { + cause?: Error; + }); + /* Excluded from this release type: buildErrorMessage */ + get name(): string; + /** Legacy name for server error responses */ + get errmsg(): string; + /** + * Checks the error to see if it has an error label + * + * @param label - The error label to check for + * @returns returns true if the error has the provided error label + */ + hasErrorLabel(label: string): boolean; + addErrorLabel(label: string): void; + get errorLabels(): string[]; +} + +/** @public */ +export declare const MongoErrorLabel: Readonly<{ + readonly RetryableWriteError: "RetryableWriteError"; + readonly TransientTransactionError: "TransientTransactionError"; + readonly UnknownTransactionCommitResult: "UnknownTransactionCommitResult"; + readonly ResumableChangeStreamError: "ResumableChangeStreamError"; + readonly HandshakeError: "HandshakeError"; + readonly ResetPool: "ResetPool"; + readonly PoolRequstedRetry: "PoolRequstedRetry"; + readonly InterruptInUseConnections: "InterruptInUseConnections"; + readonly NoWritesPerformed: "NoWritesPerformed"; +}>; + +/** @public */ +export declare type MongoErrorLabel = (typeof MongoErrorLabel)[keyof typeof MongoErrorLabel]; + +/** + * An error generated when the user attempts to operate + * on a session that has expired or has been closed. + * + * @public + * @category Error + */ +export declare class MongoExpiredSessionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * An error generated when a malformed or invalid chunk is + * encountered when reading from a GridFSStream. + * + * @public + * @category Error + */ +export declare class MongoGridFSChunkError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** An error generated when a GridFSStream operation fails to execute. + * + * @public + * @category Error + */ +export declare class MongoGridFSStreamError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error generated when the user supplies malformed or unexpected arguments + * or when a required argument or field is not provided. + * + * + * @public + * @category Error + */ +export declare class MongoInvalidArgumentError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * A error generated when the user attempts to authenticate + * via Kerberos, but fails to connect to the Kerberos client. + * + * @public + * @category Error + */ +export declare class MongoKerberosError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/* Excluded from this release type: MongoLoggableComponent */ + +/* Excluded from this release type: MongoLogger */ + +/* Excluded from this release type: MongoLoggerEnvOptions */ + +/* Excluded from this release type: MongoLoggerMongoClientOptions */ + +/* Excluded from this release type: MongoLoggerOptions */ + +/** + * An error generated when the user fails to provide authentication credentials before attempting + * to connect to a mongo server instance. + * + * + * @public + * @category Error + */ +export declare class MongoMissingCredentialsError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error generated when a required module or dependency is not present in the local environment + * + * @public + * @category Error + */ +export declare class MongoMissingDependencyError extends MongoAPIError { + dependencyName: string; + /** @remarks This property is assigned in the `Error` constructor. */ + cause: Error; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options: { + cause: Error; + dependencyName: string; + }); + get name(): string; +} + +/** + * An error indicating an issue with the network, including TCP errors and timeouts. + * @public + * @category Error + */ +export declare class MongoNetworkError extends MongoError { + /* Excluded from this release type: [kBeforeHandshake] */ + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: MongoNetworkErrorOptions); + get name(): string; +} + +/** @public */ +export declare interface MongoNetworkErrorOptions { + /** Indicates the timeout happened before a connection handshake completed */ + beforeHandshake?: boolean; + cause?: Error; +} + +/** + * An error indicating a network timeout occurred + * @public + * @category Error + * + * @privateRemarks + * mongodb-client-encryption has a dependency on this error with an instanceof check + */ +export declare class MongoNetworkTimeoutError extends MongoNetworkError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: MongoNetworkErrorOptions); + get name(): string; +} + +/** + * An error thrown when the user attempts to operate on a database or collection through a MongoClient + * that has not yet successfully called the "connect" method + * + * @public + * @category Error + */ +export declare class MongoNotConnectedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * Parsed Mongo Client Options. + * + * User supplied options are documented by `MongoClientOptions`. + * + * **NOTE:** The client's options parsing is subject to change to support new features. + * This type is provided to aid with inspection of options after parsing, it should not be relied upon programmatically. + * + * Options are sourced from: + * - connection string + * - options object passed to the MongoClient constructor + * - file system (ex. tls settings) + * - environment variables + * - DNS SRV records and TXT records + * + * Not all options may be present after client construction as some are obtained from asynchronous operations. + * + * @public + */ +export declare interface MongoOptions extends Required>, SupportedNodeConnectionOptions { + appName?: string; + hosts: HostAddress[]; + srvHost?: string; + credentials?: MongoCredentials; + readPreference: ReadPreference; + readConcern: ReadConcern; + loadBalanced: boolean; + directConnection: boolean; + serverApi: ServerApi; + compressors: CompressorName[]; + writeConcern: WriteConcern; + dbName: string; + metadata: ClientMetadata; + /* Excluded from this release type: extendedMetadata */ + /* Excluded from this release type: autoEncrypter */ + proxyHost?: string; + proxyPort?: number; + proxyUsername?: string; + proxyPassword?: string; + serverMonitoringMode: ServerMonitoringMode; + /* Excluded from this release type: connectionType */ + /* Excluded from this release type: authProviders */ + /* Excluded from this release type: encrypter */ + /* Excluded from this release type: userSpecifiedAuthSource */ + /* Excluded from this release type: userSpecifiedReplicaSet */ + /** + * # NOTE ABOUT TLS Options + * + * If `tls` is provided as an option, it is equivalent to setting the `ssl` option. + * + * NodeJS native TLS options are passed through to the socket and retain their original types. + * + * ### Additional options: + * + * | nodejs native option | driver spec equivalent option name | driver option type | + * |:----------------------|:----------------------------------------------|:-------------------| + * | `ca` | `tlsCAFile` | `string` | + * | `crl` | `tlsCRLFile` | `string` | + * | `cert` | `tlsCertificateKeyFile` | `string` | + * | `key` | `tlsCertificateKeyFile` | `string` | + * | `passphrase` | `tlsCertificateKeyFilePassword` | `string` | + * | `rejectUnauthorized` | `tlsAllowInvalidCertificates` | `boolean` | + * | `checkServerIdentity` | `tlsAllowInvalidHostnames` | `boolean` | + * | see note below | `tlsInsecure` | `boolean` | + * + * If `tlsInsecure` is set to `true`, then it will set the node native options `checkServerIdentity` + * to a no-op and `rejectUnauthorized` to `false`. + * + * If `tlsInsecure` is set to `false`, then it will set the node native options `checkServerIdentity` + * to a no-op and `rejectUnauthorized` to the inverse value of `tlsAllowInvalidCertificates`. If + * `tlsAllowInvalidCertificates` is not set, then `rejectUnauthorized` will be set to `true`. + * + * ### Note on `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile` + * + * The files specified by the paths passed in to the `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile` + * fields are read lazily on the first call to `MongoClient.connect`. Once these files have been read and + * the `ca`, `cert`, `crl` and `key` fields are populated, they will not be read again on subsequent calls to + * `MongoClient.connect`. As a result, until the first call to `MongoClient.connect`, the `ca`, + * `cert`, `crl` and `key` fields will be undefined. + */ + tls: boolean; + tlsCAFile?: string; + tlsCRLFile?: string; + tlsCertificateKeyFile?: string; + /* Excluded from this release type: __index */ + /* Excluded from this release type: mongoLoggerOptions */ + /* Excluded from this release type: mongodbLogPath */ + /* Excluded from this release type: timeoutMS */ +} + +/** + * An error used when attempting to parse a value (like a connection string) + * @public + * @category Error + */ +export declare class MongoParseError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error generated when the driver encounters unexpected input + * or reaches an unexpected/invalid internal state + * + * @privateRemarks + * Should **never** be directly instantiated. + * + * @public + * @category Error + */ +export declare class MongoRuntimeError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { + cause?: Error; + }); + get name(): string; +} + +/** + * An error generated when an attempt is made to operate + * on a closed/closing server. + * + * @public + * @category Error + */ +export declare class MongoServerClosedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * An error coming from the mongo server + * + * @public + * @category Error + */ +export declare class MongoServerError extends MongoError { + /** Raw error result document returned by server. */ + errorResponse: ErrorDescription; + codeName?: string; + writeConcernError?: Document; + errInfo?: Document; + ok?: number; + [key: string]: any; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: ErrorDescription); + get name(): string; +} + +/** + * An error signifying a client-side server selection error + * @public + * @category Error + */ +export declare class MongoServerSelectionError extends MongoSystemError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, reason: TopologyDescription); + get name(): string; +} + +/** + * An error signifying a general system issue + * @public + * @category Error + */ +export declare class MongoSystemError extends MongoError { + /** An optional reason context, such as an error saved during flow of monitoring and selecting servers */ + reason?: TopologyDescription; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, reason: TopologyDescription); + get name(): string; +} + +/** + * An error thrown when the user calls a function or method not supported on a tailable cursor + * + * @public + * @category Error + */ +export declare class MongoTailableCursorError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * An error generated when an attempt is made to operate on a + * dropped, or otherwise unavailable, database. + * + * @public + * @category Error + */ +export declare class MongoTopologyClosedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string); + get name(): string; +} + +/** + * An error generated when the user makes a mistake in the usage of transactions. + * (e.g. attempting to commit a transaction with a readPreference other than primary) + * + * @public + * @category Error + */ +export declare class MongoTransactionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error generated when a **parsable** unexpected response comes from the server. + * This is generally an error where the driver in a state expecting a certain behavior to occur in + * the next message from MongoDB but it receives something else. + * This error **does not** represent an issue with wire message formatting. + * + * #### Example + * When an operation fails, it is the driver's job to retry it. It must perform serverSelection + * again to make sure that it attempts the operation against a server in a good state. If server + * selection returns a server that does not support retryable operations, this error is used. + * This scenario is unlikely as retryable support would also have been determined on the first attempt + * but it is possible the state change could report a selectable server that does not support retries. + * + * @public + * @category Error + */ +export declare class MongoUnexpectedServerResponseError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string); + get name(): string; +} + +/** + * An error thrown when the server reports a writeConcernError + * @public + * @category Error + */ +export declare class MongoWriteConcernError extends MongoServerError { + /** The result document (provided if ok: 1) */ + result?: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: ErrorDescription, result?: Document); + get name(): string; +} + +/* Excluded from this release type: Monitor */ + +/** @public */ +export declare type MonitorEvents = { + serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void; + serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void; + serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void; + resetServer(error?: MongoError): void; + resetConnectionPool(): void; + close(): void; +} & EventEmitterWithState; + +/* Excluded from this release type: MonitorInterval */ + +/* Excluded from this release type: MonitorIntervalOptions */ + +/** @public */ +export declare interface MonitorOptions extends Omit { + connectTimeoutMS: number; + heartbeatFrequencyMS: number; + minHeartbeatFrequencyMS: number; + serverMonitoringMode: ServerMonitoringMode; +} + +/* Excluded from this release type: MonitorPrivate */ + +/** + * @public + * returns tuple of strings (keys to be joined on '.') that represent every path into a schema + * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/ + * + * @remarks + * Through testing we determined that a depth of 8 is safe for the typescript compiler + * and provides reasonable compilation times. This number is otherwise not special and + * should be changed if issues are found with this level of checking. Beyond this + * depth any helpers that make use of NestedPaths should devolve to not asserting any + * type safety on the input. + */ +export declare type NestedPaths = Depth['length'] extends 8 ? [] : Type extends string | number | bigint | boolean | Date | RegExp | Buffer | Uint8Array | ((...args: any[]) => any) | { + _bsontype: string; +} ? [] : Type extends ReadonlyArray ? [] | [number, ...NestedPaths] : Type extends Map ? [string] : Type extends object ? { + [Key in Extract]: Type[Key] extends Type ? [Key] : Type extends Type[Key] ? [Key] : Type[Key] extends ReadonlyArray ? Type extends ArrayType ? [Key] : ArrayType extends Type ? [Key] : [ + Key, + ...NestedPaths + ] : // child is not structured the same as the parent + [ + Key, + ...NestedPaths + ] | [Key]; +}[Extract] : []; + +/** + * @public + * returns keys (strings) for every path into a schema with a value of type + * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/ + */ +export declare type NestedPathsOfType = KeysOfAType<{ + [Property in Join, '.'>]: PropertyType; +}, Type>; + +/** + * @public + * A type that extends Document but forbids anything that "looks like" an object id. + */ +export declare type NonObjectIdLikeDocument = { + [key in keyof ObjectIdLike]?: never; +} & Document; + +/** It avoids using fields with not acceptable types @public */ +export declare type NotAcceptedFields = { + readonly [key in KeysOfOtherType]?: never; +}; + +/** @public */ +export declare type NumericType = IntegerType | Decimal128 | Double; + +export { ObjectId } + +/** + * @public + * @experimental + */ +export declare interface OIDCCallbackContext { + refreshToken?: string; + timeoutSeconds?: number; + timeoutContext?: AbortSignal; + version: number; +} + +/** + * @public + * @experimental + */ +export declare type OIDCRefreshFunction = (info: IdPServerInfo, context: OIDCCallbackContext) => Promise; + +/** + * @public + * @experimental + */ +export declare type OIDCRequestFunction = (info: IdPServerInfo, context: OIDCCallbackContext) => Promise; + +/* Excluded from this release type: OnDemandDocument */ + +/** @public */ +export declare type OneOrMore = T | ReadonlyArray; + +/** @public */ +export declare type OnlyFieldsOfType = IsAny : Record, AcceptedFields & NotAcceptedFields & Record>; + +/* Excluded from this release type: OpCompressedRequest */ + +/** @public */ +export declare interface OperationOptions extends BSONSerializeOptions { + /** Specify ClientSession for this command */ + session?: ClientSession; + willRetryWrite?: boolean; + /** The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest). */ + readPreference?: ReadPreferenceLike; + /* Excluded from this release type: bypassPinningCheck */ + omitReadPreference?: boolean; + /* Excluded from this release type: timeoutMS */ +} + +/* Excluded from this release type: OperationParent */ + +/** + * Represents a specific point in time on a server. Can be retrieved by using `db.command()` + * @public + * @see https://www.mongodb.com/docs/manual/reference/method/db.runCommand/#response + */ +export declare type OperationTime = Timestamp; + +/* Excluded from this release type: OpMsgOptions */ + +/* Excluded from this release type: OpMsgRequest */ + +/* Excluded from this release type: OpMsgResponse */ + +/* Excluded from this release type: OpQueryOptions */ + +/* Excluded from this release type: OpQueryRequest */ + +/* Excluded from this release type: OpReply */ + +/** + * Add an optional _id field to an object shaped type + * @public + */ +export declare type OptionalId = EnhancedOmit & { + _id?: InferIdType; +}; + +/** + * Adds an optional _id field to an object shaped type, unless the _id field is required on that type. + * In the case _id is required, this method continues to require_id. + * + * @public + * + * @privateRemarks + * `ObjectId extends TSchema['_id']` is a confusing ordering at first glance. Rather than ask + * `TSchema['_id'] extends ObjectId` which translated to "Is the _id property ObjectId?" + * we instead ask "Does ObjectId look like (have the same shape) as the _id?" + */ +export declare type OptionalUnlessRequiredId = TSchema extends { + _id: any; +} ? TSchema : OptionalId; + +/** @public */ +export declare class OrderedBulkOperation extends BulkOperationBase { + /* Excluded from this release type: __constructor */ + addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this; +} + +/** @public */ +export declare interface PkFactory { + createPk(): any; +} + +/* Excluded from this release type: PoolState */ + +/** @public */ +export declare const ProfilingLevel: Readonly<{ + readonly off: "off"; + readonly slowOnly: "slow_only"; + readonly all: "all"; +}>; + +/** @public */ +export declare type ProfilingLevel = (typeof ProfilingLevel)[keyof typeof ProfilingLevel]; + +/** @public */ +export declare type ProfilingLevelOptions = CommandOperationOptions; + +/** @public */ +export declare type PropertyType = string extends Property ? unknown : Property extends keyof Type ? Type[Property] : Property extends `${number}` ? Type extends ReadonlyArray ? ArrayType : unknown : Property extends `${infer Key}.${infer Rest}` ? Key extends `${number}` ? Type extends ReadonlyArray ? PropertyType : unknown : Key extends keyof Type ? Type[Key] extends Map ? MapType : PropertyType : unknown : unknown; + +/** @public */ +export declare interface ProxyOptions { + proxyHost?: string; + proxyPort?: number; + proxyUsername?: string; + proxyPassword?: string; +} + +/** @public */ +export declare type PullAllOperator = ({ + readonly [key in KeysOfAType>]?: TSchema[key]; +} & NotAcceptedFields>) & { + readonly [key: string]: ReadonlyArray; +}; + +/** @public */ +export declare type PullOperator = ({ + readonly [key in KeysOfAType>]?: Partial> | FilterOperations>; +} & NotAcceptedFields>) & { + readonly [key: string]: FilterOperators | any; +}; + +/** @public */ +export declare type PushOperator = ({ + readonly [key in KeysOfAType>]?: Flatten | ArrayOperator>>; +} & NotAcceptedFields>) & { + readonly [key: string]: ArrayOperator | any; +}; + +/** + * @public + * RangeOptions specifies index options for a Queryable Encryption field supporting "rangePreview" queries. + * min, max, sparsity, and range must match the values set in the encryptedFields of the destination collection. + * For double and decimal128, min/max/precision must all be set, or all be unset. + */ +export declare interface RangeOptions { + min?: any; + max?: any; + sparsity: Long; + precision?: number; +} + +/** + * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties + * of the data read from replica sets and replica set shards. + * @public + * + * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html + */ +export declare class ReadConcern { + level: ReadConcernLevel | string; + /** Constructs a ReadConcern from the read concern level.*/ + constructor(level: ReadConcernLevel); + /** + * Construct a ReadConcern given an options object. + * + * @param options - The options object from which to extract the write concern. + */ + static fromOptions(options?: { + readConcern?: ReadConcernLike; + level?: ReadConcernLevel; + }): ReadConcern | undefined; + static get MAJORITY(): 'majority'; + static get AVAILABLE(): 'available'; + static get LINEARIZABLE(): 'linearizable'; + static get SNAPSHOT(): 'snapshot'; + toJSON(): Document; +} + +/** @public */ +export declare const ReadConcernLevel: Readonly<{ + readonly local: "local"; + readonly majority: "majority"; + readonly linearizable: "linearizable"; + readonly available: "available"; + readonly snapshot: "snapshot"; +}>; + +/** @public */ +export declare type ReadConcernLevel = (typeof ReadConcernLevel)[keyof typeof ReadConcernLevel]; + +/** @public */ +export declare type ReadConcernLike = ReadConcern | { + level: ReadConcernLevel; +} | ReadConcernLevel; + +/** + * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is + * used to construct connections. + * @public + * + * @see https://www.mongodb.com/docs/manual/core/read-preference/ + */ +export declare class ReadPreference { + mode: ReadPreferenceMode; + tags?: TagSet[]; + hedge?: HedgeOptions; + maxStalenessSeconds?: number; + minWireVersion?: number; + static PRIMARY: "primary"; + static PRIMARY_PREFERRED: "primaryPreferred"; + static SECONDARY: "secondary"; + static SECONDARY_PREFERRED: "secondaryPreferred"; + static NEAREST: "nearest"; + static primary: ReadPreference; + static primaryPreferred: ReadPreference; + static secondary: ReadPreference; + static secondaryPreferred: ReadPreference; + static nearest: ReadPreference; + /** + * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest) + * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary. + * @param options - Additional read preference options + */ + constructor(mode: ReadPreferenceMode, tags?: TagSet[], options?: ReadPreferenceOptions); + get preference(): ReadPreferenceMode; + static fromString(mode: string): ReadPreference; + /** + * Construct a ReadPreference given an options object. + * + * @param options - The options object from which to extract the read preference. + */ + static fromOptions(options?: ReadPreferenceFromOptions): ReadPreference | undefined; + /** + * Replaces options.readPreference with a ReadPreference instance + */ + static translate(options: ReadPreferenceLikeOptions): ReadPreferenceLikeOptions; + /** + * Validate if a mode is legal + * + * @param mode - The string representing the read preference mode. + */ + static isValid(mode: string): boolean; + /** + * Validate if a mode is legal + * + * @param mode - The string representing the read preference mode. + */ + isValid(mode?: string): boolean; + /** + * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire + * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query + */ + secondaryOk(): boolean; + /** + * Check if the two ReadPreferences are equivalent + * + * @param readPreference - The read preference with which to check equality + */ + equals(readPreference: ReadPreference): boolean; + /** Return JSON representation */ + toJSON(): Document; +} + +/** @public */ +export declare interface ReadPreferenceFromOptions extends ReadPreferenceLikeOptions { + session?: ClientSession; + readPreferenceTags?: TagSet[]; + hedge?: HedgeOptions; +} + +/** @public */ +export declare type ReadPreferenceLike = ReadPreference | ReadPreferenceMode; + +/** @public */ +export declare interface ReadPreferenceLikeOptions extends ReadPreferenceOptions { + readPreference?: ReadPreferenceLike | { + mode?: ReadPreferenceMode; + preference?: ReadPreferenceMode; + tags?: TagSet[]; + maxStalenessSeconds?: number; + }; +} + +/** @public */ +export declare const ReadPreferenceMode: Readonly<{ + readonly primary: "primary"; + readonly primaryPreferred: "primaryPreferred"; + readonly secondary: "secondary"; + readonly secondaryPreferred: "secondaryPreferred"; + readonly nearest: "nearest"; +}>; + +/** @public */ +export declare type ReadPreferenceMode = (typeof ReadPreferenceMode)[keyof typeof ReadPreferenceMode]; + +/** @public */ +export declare interface ReadPreferenceOptions { + /** Max secondary read staleness in seconds, Minimum value is 90 seconds.*/ + maxStalenessSeconds?: number; + /** Server mode in which the same query is dispatched in parallel to multiple replica set members. */ + hedge?: HedgeOptions; +} + +/** @public */ +export declare type RegExpOrString = T extends string ? BSONRegExp | RegExp | T : T; + +/** @public */ +export declare type RemoveUserOptions = CommandOperationOptions; + +/** @public */ +export declare interface RenameOptions extends CommandOperationOptions { + /** Drop the target name collection if it previously exists. */ + dropTarget?: boolean; + /** Unclear */ + new_collection?: boolean; +} + +/** @public */ +export declare interface ReplaceOneModel { + /** The filter to limit the replaced document. */ + filter: Filter; + /** The document with which to replace the matched document. */ + replacement: WithoutId; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; +} + +/** @public */ +export declare interface ReplaceOptions extends CommandOperationOptions { + /** If true, allows the write to opt-out of document level validation */ + bypassDocumentValidation?: boolean; + /** Specifies a collation */ + collation?: CollationOptions; + /** Specify that the update query should only consider plans using the hinted index */ + hint?: string | Document; + /** When true, creates a new document if no document matches the query */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** + * @public + * @deprecated Please use the ChangeStreamCursorOptions type instead. + */ +export declare interface ResumeOptions { + startAtOperationTime?: Timestamp; + batchSize?: number; + maxAwaitTimeMS?: number; + collation?: CollationOptions; + readPreference?: ReadPreference; + resumeAfter?: ResumeToken; + startAfter?: ResumeToken; + fullDocument?: string; +} + +/** + * Represents the logical starting point for a new ChangeStream or resuming a ChangeStream on the server. + * @see https://www.mongodb.com/docs/manual/changeStreams/#std-label-change-stream-resume + * @public + */ +export declare type ResumeToken = unknown; + +/** @public */ +export declare const ReturnDocument: Readonly<{ + readonly BEFORE: "before"; + readonly AFTER: "after"; +}>; + +/** @public */ +export declare type ReturnDocument = (typeof ReturnDocument)[keyof typeof ReturnDocument]; + +/** @public */ +export declare interface RootFilterOperators extends Document { + $and?: Filter[]; + $nor?: Filter[]; + $or?: Filter[]; + $text?: { + $search: string; + $language?: string; + $caseSensitive?: boolean; + $diacriticSensitive?: boolean; + }; + $where?: string | ((this: TSchema) => boolean); + $comment?: string | Document; +} + +/* Excluded from this release type: RTTPinger */ + +/* Excluded from this release type: RTTPingerOptions */ + +/* Excluded from this release type: RTTSampler */ + +/** @public */ +export declare class RunCommandCursor extends AbstractCursor { + readonly command: Readonly>; + readonly getMoreOptions: { + comment?: any; + maxAwaitTimeMS?: number; + batchSize?: number; + }; + /** + * Controls the `getMore.comment` field + * @param comment - any BSON value + */ + setComment(comment: any): this; + /** + * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await + * @param maxTimeMS - the number of milliseconds to wait for new data + */ + setMaxTimeMS(maxTimeMS: number): this; + /** + * Controls the `getMore.batchSize` field + * @param maxTimeMS - the number documents to return in the `nextBatch` + */ + setBatchSize(batchSize: number): this; + /** Unsupported for RunCommandCursor */ + clone(): never; + /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */ + withReadConcern(_: ReadConcernLike): never; + /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */ + addCursorFlag(_: string, __: boolean): never; + /** Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document */ + maxTimeMS(_: number): never; + /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */ + batchSize(_: number): never; + /* Excluded from this release type: db */ + /* Excluded from this release type: __constructor */ + /* Excluded from this release type: _initialize */ + /* Excluded from this release type: getMore */ +} + +/** @public */ +export declare type RunCommandOptions = { + /** Specify ClientSession for this command */ + session?: ClientSession; + /** The read preference */ + readPreference?: ReadPreferenceLike; +} & BSONSerializeOptions; + +/** @public */ +export declare type RunCursorCommandOptions = { + readPreference?: ReadPreferenceLike; + session?: ClientSession; +} & BSONSerializeOptions; + +/** @public */ +export declare type SchemaMember = { + [P in keyof T]?: V; +} | { + [key: string]: V; +}; + +/** + * @public + */ +export declare interface SearchIndexDescription extends Document { + /** The name of the index. */ + name?: string; + /** The index definition. */ + definition: Document; + /** The type of the index. Currently `search` or `vectorSearch` are supported. */ + type?: string; +} + +/** @public */ +export declare interface SelectServerOptions { + readPreference?: ReadPreferenceLike; + /** How long to block for server selection before throwing an error */ + serverSelectionTimeoutMS?: number; + session?: ClientSession; + operationName: string; + previousServer?: ServerDescription; + /* Excluded from this release type: timeout */ +} + +export { serialize } + +/* Excluded from this release type: Server */ + +/* Excluded from this release type: SERVER_CLOSED */ + +/* Excluded from this release type: SERVER_DESCRIPTION_CHANGED */ + +/* Excluded from this release type: SERVER_HEARTBEAT_FAILED */ + +/* Excluded from this release type: SERVER_HEARTBEAT_STARTED */ + +/* Excluded from this release type: SERVER_HEARTBEAT_SUCCEEDED */ + +/* Excluded from this release type: SERVER_OPENING */ + +/* Excluded from this release type: SERVER_SELECTION_FAILED */ + +/* Excluded from this release type: SERVER_SELECTION_STARTED */ + +/* Excluded from this release type: SERVER_SELECTION_SUCCEEDED */ + +/** @public */ +export declare interface ServerApi { + version: ServerApiVersion; + strict?: boolean; + deprecationErrors?: boolean; +} + +/** @public */ +export declare const ServerApiVersion: Readonly<{ + readonly v1: "1"; +}>; + +/** @public */ +export declare type ServerApiVersion = (typeof ServerApiVersion)[keyof typeof ServerApiVersion]; + +/** @public */ +export declare class ServerCapabilities { + maxWireVersion: number; + minWireVersion: number; + constructor(hello: Document); + get hasAggregationCursor(): boolean; + get hasWriteCommands(): boolean; + get hasTextSearch(): boolean; + get hasAuthCommands(): boolean; + get hasListCollectionsCommand(): boolean; + get hasListIndexesCommand(): boolean; + get supportsSnapshotReads(): boolean; + get commandsTakeWriteConcern(): boolean; + get commandsTakeCollation(): boolean; +} + +/** + * Emitted when server is closed. + * @public + * @category Event + */ +export declare class ServerClosedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The address (host/port pair) of the server */ + address: string; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * The client's view of a single server, based on the most recent hello outcome. + * + * Internal type, not meant to be directly instantiated + * @public + */ +export declare class ServerDescription { + address: string; + type: ServerType; + hosts: string[]; + passives: string[]; + arbiters: string[]; + tags: TagSet; + error: MongoError | null; + topologyVersion: TopologyVersion | null; + minWireVersion: number; + maxWireVersion: number; + roundTripTime: number; + /** The minimum measurement of the last 10 measurements of roundTripTime that have been collected */ + minRoundTripTime: number; + lastUpdateTime: number; + lastWriteDate: number; + me: string | null; + primary: string | null; + setName: string | null; + setVersion: number | null; + electionId: ObjectId | null; + logicalSessionTimeoutMinutes: number | null; + $clusterTime?: ClusterTime; + /* Excluded from this release type: __constructor */ + get hostAddress(): HostAddress; + get allHosts(): string[]; + /** Is this server available for reads*/ + get isReadable(): boolean; + /** Is this server data bearing */ + get isDataBearing(): boolean; + /** Is this server available for writes */ + get isWritable(): boolean; + get host(): string; + get port(): number; + /** + * Determines if another `ServerDescription` is equal to this one per the rules defined + * in the {@link https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#serverdescription|SDAM spec} + */ + equals(other?: ServerDescription | null): boolean; +} + +/** + * Emitted when server description changes, but does NOT include changes to the RTT. + * @public + * @category Event + */ +export declare class ServerDescriptionChangedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The address (host/port pair) of the server */ + address: string; + /** The previous server description */ + previousDescription: ServerDescription; + /** The new server description */ + newDescription: ServerDescription; + name: "serverDescriptionChanged"; + /* Excluded from this release type: __constructor */ +} + +/* Excluded from this release type: ServerDescriptionOptions */ + +/** @public */ +export declare type ServerEvents = { + serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void; + serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void; + serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void; + /* Excluded from this release type: connect */ + descriptionReceived(description: ServerDescription): void; + closed(): void; + ended(): void; +} & ConnectionPoolEvents & EventEmitterWithState; + +/** + * Emitted when the server monitor’s hello fails, either with an “ok: 0” or a socket exception. + * @public + * @category Event + */ +export declare class ServerHeartbeatFailedEvent { + /** The connection id for the command */ + connectionId: string; + /** The execution time of the event in ms */ + duration: number; + /** The command failure */ + failure: Error; + /** Is true when using the streaming protocol */ + awaited: boolean; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * Emitted when the server monitor’s hello command is started - immediately before + * the hello command is serialized into raw BSON and written to the socket. + * + * @public + * @category Event + */ +export declare class ServerHeartbeatStartedEvent { + /** The connection id for the command */ + connectionId: string; + /** Is true when using the streaming protocol */ + awaited: boolean; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * Emitted when the server monitor’s hello succeeds. + * @public + * @category Event + */ +export declare class ServerHeartbeatSucceededEvent { + /** The connection id for the command */ + connectionId: string; + /** The execution time of the event in ms */ + duration: number; + /** The command reply */ + reply: Document; + /** Is true when using the streaming protocol */ + awaited: boolean; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare const ServerMonitoringMode: Readonly<{ + readonly auto: "auto"; + readonly poll: "poll"; + readonly stream: "stream"; +}>; + +/** @public */ +export declare type ServerMonitoringMode = (typeof ServerMonitoringMode)[keyof typeof ServerMonitoringMode]; + +/** + * Emitted when server is initialized. + * @public + * @category Event + */ +export declare class ServerOpeningEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The address (host/port pair) of the server */ + address: string; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/* Excluded from this release type: ServerOptions */ + +/* Excluded from this release type: ServerPrivate */ + +/* Excluded from this release type: ServerSelectionCallback */ + +/* Excluded from this release type: ServerSelectionEvent */ + +/* Excluded from this release type: ServerSelectionFailedEvent */ + +/* Excluded from this release type: ServerSelectionRequest */ + +/* Excluded from this release type: ServerSelectionStartedEvent */ + +/* Excluded from this release type: ServerSelectionSucceededEvent */ + +/* Excluded from this release type: ServerSelector */ + +/** + * Reflects the existence of a session on the server. Can be reused by the session pool. + * WARNING: not meant to be instantiated directly. For internal use only. + * @public + */ +export declare class ServerSession { + id: ServerSessionId; + lastUse: number; + txnNumber: number; + isDirty: boolean; + /* Excluded from this release type: __constructor */ + /** + * Determines if the server session has timed out. + * + * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes" + */ + hasTimedOut(sessionTimeoutMinutes: number): boolean; + /* Excluded from this release type: clone */ +} + +/** @public */ +export declare type ServerSessionId = { + id: Binary; +}; + +/* Excluded from this release type: ServerSessionPool */ + +/** + * An enumeration of server types we know about + * @public + */ +export declare const ServerType: Readonly<{ + readonly Standalone: "Standalone"; + readonly Mongos: "Mongos"; + readonly PossiblePrimary: "PossiblePrimary"; + readonly RSPrimary: "RSPrimary"; + readonly RSSecondary: "RSSecondary"; + readonly RSArbiter: "RSArbiter"; + readonly RSOther: "RSOther"; + readonly RSGhost: "RSGhost"; + readonly Unknown: "Unknown"; + readonly LoadBalancer: "LoadBalancer"; +}>; + +/** @public */ +export declare type ServerType = (typeof ServerType)[keyof typeof ServerType]; + +/** @public */ +export declare type SetFields = ({ + readonly [key in KeysOfAType | undefined>]?: OptionalId> | AddToSetOperators>>>; +} & IsAny | undefined>>) & { + readonly [key: string]: AddToSetOperators | any; +}; + +/** @public */ +export declare type SetProfilingLevelOptions = CommandOperationOptions; + +/* Excluded from this release type: SeverityLevel */ + +/** @public */ +export declare type Sort = string | Exclude | string[] | { + [key: string]: SortDirection; +} | Map | [string, SortDirection][] | [string, SortDirection]; + +/** @public */ +export declare type SortDirection = 1 | -1 | 'asc' | 'desc' | 'ascending' | 'descending' | { + $meta: string; +}; + +/* Excluded from this release type: SortDirectionForCmd */ + +/* Excluded from this release type: SortForCmd */ + +/* Excluded from this release type: SrvPoller */ + +/* Excluded from this release type: SrvPollerEvents */ + +/* Excluded from this release type: SrvPollerOptions */ + +/* Excluded from this release type: SrvPollingEvent */ + +/* Excluded from this release type: StateMachineExecutable */ + +/** @public */ +export declare type Stream = Socket | TLSSocket; + +/** @public */ +export declare class StreamDescription { + address: string; + type: ServerType; + minWireVersion?: number; + maxWireVersion?: number; + maxBsonObjectSize: number; + maxMessageSizeBytes: number; + maxWriteBatchSize: number; + compressors: CompressorName[]; + compressor?: CompressorName; + logicalSessionTimeoutMinutes?: number; + loadBalanced: boolean; + __nodejs_mock_server__?: boolean; + zlibCompressionLevel?: number; + serverConnectionId: bigint | null; + hello: Document | null; + constructor(address: string, options?: StreamDescriptionOptions); + receiveResponse(response: Document | null): void; + parseServerConnectionID(serverConnectionId: number | Double | bigint | Long): bigint; +} + +/** @public */ +export declare interface StreamDescriptionOptions { + compressors?: CompressorName[]; + logicalSessionTimeoutMinutes?: number; + loadBalanced: boolean; +} + +/** + * @public + * @experimental + */ +export declare type StrictFilter = Partial | ({ + [Property in Join, []>, '.'>]?: Condition, Property>>; +} & RootFilterOperators>); + +/** + * @public + * @experimental + */ +export declare type StrictMatchKeysAndValues = Readonly<{ + [Property in Join, '.'>]?: PropertyType; +} & { + [Property in `${NestedPathsOfType}.$${`[${string}]` | ''}`]?: ArrayElement>; +} & { + [Property in `${NestedPathsOfType[]>}.$${`[${string}]` | ''}.${string}`]?: any; +} & Document>; + +/** + * @public + * @experimental + */ +export declare type StrictUpdateFilter = { + $currentDate?: OnlyFieldsOfType; + $inc?: OnlyFieldsOfType; + $min?: StrictMatchKeysAndValues; + $max?: StrictMatchKeysAndValues; + $mul?: OnlyFieldsOfType; + $rename?: Record; + $set?: StrictMatchKeysAndValues; + $setOnInsert?: StrictMatchKeysAndValues; + $unset?: OnlyFieldsOfType; + $addToSet?: SetFields; + $pop?: OnlyFieldsOfType, 1 | -1>; + $pull?: PullOperator; + $push?: PushOperator; + $pullAll?: PullAllOperator; + $bit?: OnlyFieldsOfType; +} & Document; + +/** @public */ +export declare type SupportedNodeConnectionOptions = SupportedTLSConnectionOptions & SupportedTLSSocketOptions & SupportedSocketOptions; + +/** @public */ +export declare type SupportedSocketOptions = Pick; + +/** @public */ +export declare type SupportedTLSConnectionOptions = Pick>; + +/** @public */ +export declare type SupportedTLSSocketOptions = Pick>; + +/** @public */ +export declare type TagSet = { + [key: string]: string; +}; + +/* Excluded from this release type: Timeout */ + +/* Excluded from this release type: TimerQueue */ + +/** @public + * Configuration options for timeseries collections + * @see https://www.mongodb.com/docs/manual/core/timeseries-collections/ + */ +export declare interface TimeSeriesCollectionOptions extends Document { + timeField: string; + metaField?: string; + granularity?: 'seconds' | 'minutes' | 'hours' | string; + bucketMaxSpanSeconds?: number; + bucketRoundingSeconds?: number; +} + +export { Timestamp } + +/* Excluded from this release type: Topology */ + +/* Excluded from this release type: TOPOLOGY_CLOSED */ + +/* Excluded from this release type: TOPOLOGY_DESCRIPTION_CHANGED */ + +/* Excluded from this release type: TOPOLOGY_OPENING */ + +/** + * Emitted when topology is closed. + * @public + * @category Event + */ +export declare class TopologyClosedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** + * Representation of a deployment of servers + * @public + */ +export declare class TopologyDescription { + type: TopologyType; + setName: string | null; + maxSetVersion: number | null; + maxElectionId: ObjectId | null; + servers: Map; + stale: boolean; + compatible: boolean; + compatibilityError?: string; + logicalSessionTimeoutMinutes: number | null; + heartbeatFrequencyMS: number; + localThresholdMS: number; + commonWireVersion: number; + /** + * Create a TopologyDescription + */ + constructor(topologyType: TopologyType, serverDescriptions?: Map | null, setName?: string | null, maxSetVersion?: number | null, maxElectionId?: ObjectId | null, commonWireVersion?: number | null, options?: TopologyDescriptionOptions | null); + /* Excluded from this release type: updateFromSrvPollingEvent */ + /* Excluded from this release type: update */ + get error(): MongoError | null; + /** + * Determines if the topology description has any known servers + */ + get hasKnownServers(): boolean; + /** + * Determines if this topology description has a data-bearing server available. + */ + get hasDataBearingServers(): boolean; + /* Excluded from this release type: hasServer */ + /** + * Returns a JSON-serializable representation of the TopologyDescription. This is primarily + * intended for use with JSON.stringify(). + * + * This method will not throw. + */ + toJSON(): Document; +} + +/** + * Emitted when topology description changes. + * @public + * @category Event + */ +export declare class TopologyDescriptionChangedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The old topology description */ + previousDescription: TopologyDescription; + /** The new topology description */ + newDescription: TopologyDescription; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/** @public */ +export declare interface TopologyDescriptionOptions { + heartbeatFrequencyMS?: number; + localThresholdMS?: number; +} + +/** @public */ +export declare type TopologyEvents = { + /* Excluded from this release type: connect */ + serverOpening(event: ServerOpeningEvent): void; + serverClosed(event: ServerClosedEvent): void; + serverDescriptionChanged(event: ServerDescriptionChangedEvent): void; + topologyClosed(event: TopologyClosedEvent): void; + topologyOpening(event: TopologyOpeningEvent): void; + topologyDescriptionChanged(event: TopologyDescriptionChangedEvent): void; + error(error: Error): void; + /* Excluded from this release type: open */ + close(): void; + timeout(): void; +} & Omit & ConnectionPoolEvents & ConnectionEvents & EventEmitterWithState; + +/** + * Emitted when topology is initialized. + * @public + * @category Event + */ +export declare class TopologyOpeningEvent { + /** A unique identifier for the topology */ + topologyId: number; + /* Excluded from this release type: name */ + /* Excluded from this release type: __constructor */ +} + +/* Excluded from this release type: TopologyOptions */ + +/* Excluded from this release type: TopologyPrivate */ + +/** + * An enumeration of topology types we know about + * @public + */ +export declare const TopologyType: Readonly<{ + readonly Single: "Single"; + readonly ReplicaSetNoPrimary: "ReplicaSetNoPrimary"; + readonly ReplicaSetWithPrimary: "ReplicaSetWithPrimary"; + readonly Sharded: "Sharded"; + readonly Unknown: "Unknown"; + readonly LoadBalanced: "LoadBalanced"; +}>; + +/** @public */ +export declare type TopologyType = (typeof TopologyType)[keyof typeof TopologyType]; + +/** @public */ +export declare interface TopologyVersion { + processId: ObjectId; + counter: Long; +} + +/** + * @public + * A class maintaining state related to a server transaction. Internal Only + */ +export declare class Transaction { + /* Excluded from this release type: state */ + options: TransactionOptions; + /* Excluded from this release type: _pinnedServer */ + /* Excluded from this release type: _recoveryToken */ + /* Excluded from this release type: __constructor */ + /* Excluded from this release type: server */ + get recoveryToken(): Document | undefined; + get isPinned(): boolean; + /** @returns Whether the transaction has started */ + get isStarting(): boolean; + /** + * @returns Whether this session is presently in a transaction + */ + get isActive(): boolean; + get isCommitted(): boolean; + /* Excluded from this release type: transition */ + /* Excluded from this release type: pinServer */ + /* Excluded from this release type: unpinServer */ +} + +/** + * Configuration options for a transaction. + * @public + */ +export declare interface TransactionOptions extends CommandOperationOptions { + /** A default read concern for commands in this transaction */ + readConcern?: ReadConcernLike; + /** A default writeConcern for commands in this transaction */ + writeConcern?: WriteConcern; + /** A default read preference for commands in this transaction */ + readPreference?: ReadPreferenceLike; + /** Specifies the maximum amount of time to allow a commit action on a transaction to run in milliseconds */ + maxCommitTimeMS?: number; +} + +/* Excluded from this release type: TxnState */ + +/** + * Typescript type safe event emitter + * @public + */ +export declare interface TypedEventEmitter extends EventEmitter { + addListener(event: EventKey, listener: Events[EventKey]): this; + addListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + addListener(event: string | symbol, listener: GenericListener): this; + on(event: EventKey, listener: Events[EventKey]): this; + on(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + on(event: string | symbol, listener: GenericListener): this; + once(event: EventKey, listener: Events[EventKey]): this; + once(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + once(event: string | symbol, listener: GenericListener): this; + removeListener(event: EventKey, listener: Events[EventKey]): this; + removeListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + removeListener(event: string | symbol, listener: GenericListener): this; + off(event: EventKey, listener: Events[EventKey]): this; + off(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + off(event: string | symbol, listener: GenericListener): this; + removeAllListeners(event?: EventKey | CommonEvents | symbol | string): this; + listeners(event: EventKey | CommonEvents | symbol | string): Events[EventKey][]; + rawListeners(event: EventKey | CommonEvents | symbol | string): Events[EventKey][]; + emit(event: EventKey | symbol, ...args: Parameters): boolean; + listenerCount(type: EventKey | CommonEvents | symbol | string): number; + prependListener(event: EventKey, listener: Events[EventKey]): this; + prependListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + prependListener(event: string | symbol, listener: GenericListener): this; + prependOnceListener(event: EventKey, listener: Events[EventKey]): this; + prependOnceListener(event: CommonEvents, listener: (eventName: string | symbol, listener: GenericListener) => void): this; + prependOnceListener(event: string | symbol, listener: GenericListener): this; + eventNames(): string[]; + getMaxListeners(): number; + setMaxListeners(n: number): this; +} + +/** + * Typescript type safe event emitter + * @public + */ +export declare class TypedEventEmitter extends EventEmitter { + /* Excluded from this release type: mongoLogger */ + /* Excluded from this release type: component */ + /* Excluded from this release type: emitAndLog */ + /* Excluded from this release type: emitAndLogHeartbeat */ + /* Excluded from this release type: emitAndLogCommand */ +} + +/** @public */ +export declare class UnorderedBulkOperation extends BulkOperationBase { + /* Excluded from this release type: __constructor */ + handleWriteError(callback: Callback, writeResult: BulkWriteResult): boolean; + addToOperationsList(batchType: BatchType, document: Document | UpdateStatement | DeleteStatement): this; +} + +/** @public */ +export declare interface UpdateDescription { + /** + * A document containing key:value pairs of names of the fields that were + * changed, and the new value for those fields. + */ + updatedFields?: Partial; + /** + * An array of field names that were removed from the document. + */ + removedFields?: string[]; + /** + * An array of documents which record array truncations performed with pipeline-based updates using one or more of the following stages: + * - $addFields + * - $set + * - $replaceRoot + * - $replaceWith + */ + truncatedArrays?: Array<{ + /** The name of the truncated field. */ + field: string; + /** The number of elements in the truncated array. */ + newSize: number; + }>; + /** + * A document containing additional information about any ambiguous update paths from the update event. The document + * maps the full ambiguous update path to an array containing the actual resolved components of the path. For example, + * given a document shaped like `{ a: { '0': 0 } }`, and an update of `{ $inc: 'a.0' }`, disambiguated paths would look like + * the following: + * + * ``` + * { + * 'a.0': ['a', '0'] + * } + * ``` + * + * This field is only present when there are ambiguous paths that are updated as a part of the update event and `showExpandedEvents` + * is enabled for the change stream. + * @sinceServerVersion 6.1.0 + */ + disambiguatedPaths?: Document; +} + +/** @public */ +export declare type UpdateFilter = { + $currentDate?: OnlyFieldsOfType; + $inc?: OnlyFieldsOfType; + $min?: MatchKeysAndValues; + $max?: MatchKeysAndValues; + $mul?: OnlyFieldsOfType; + $rename?: Record; + $set?: MatchKeysAndValues; + $setOnInsert?: MatchKeysAndValues; + $unset?: OnlyFieldsOfType; + $addToSet?: SetFields; + $pop?: OnlyFieldsOfType, 1 | -1>; + $pull?: PullOperator; + $push?: PushOperator; + $pullAll?: PullAllOperator; + $bit?: OnlyFieldsOfType; +} & Document; + +/** @public */ +export declare interface UpdateManyModel { + /** The filter to limit the updated documents. */ + filter: Filter; + /** + * The modifications to apply. The value can be either: + * UpdateFilter - A document that contains update operator expressions, + * Document[] - an aggregation pipeline. + */ + update: UpdateFilter | Document[]; + /** A set of filters specifying to which array elements an update should apply. */ + arrayFilters?: Document[]; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; +} + +/** @public */ +export declare interface UpdateOneModel { + /** The filter to limit the updated documents. */ + filter: Filter; + /** + * The modifications to apply. The value can be either: + * UpdateFilter - A document that contains update operator expressions, + * Document[] - an aggregation pipeline. + */ + update: UpdateFilter | Document[]; + /** A set of filters specifying to which array elements an update should apply. */ + arrayFilters?: Document[]; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; +} + +/** @public */ +export declare interface UpdateOptions extends CommandOperationOptions { + /** A set of filters specifying to which array elements an update should apply */ + arrayFilters?: Document[]; + /** If true, allows the write to opt-out of document level validation */ + bypassDocumentValidation?: boolean; + /** Specifies a collation */ + collation?: CollationOptions; + /** Specify that the update query should only consider plans using the hinted index */ + hint?: Hint; + /** When true, creates a new document if no document matches the query */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** + * @public + * `TSchema` is the schema of the collection + */ +export declare interface UpdateResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */ + acknowledged: boolean; + /** The number of documents that matched the filter */ + matchedCount: number; + /** The number of documents that were modified */ + modifiedCount: number; + /** The number of documents that were upserted */ + upsertedCount: number; + /** The identifier of the inserted document if an upsert took place */ + upsertedId: InferIdType | null; +} + +/** @public */ +export declare interface UpdateStatement { + /** The query that matches documents to update. */ + q: Document; + /** The modifications to apply. */ + u: Document | Document[]; + /** If true, perform an insert if no documents match the query. */ + upsert?: boolean; + /** If true, updates all documents that meet the query criteria. */ + multi?: boolean; + /** Specifies the collation to use for the operation. */ + collation?: CollationOptions; + /** An array of filter documents that determines which array elements to modify for an update operation on an array field. */ + arrayFilters?: Document[]; + /** A document or string that specifies the index to use to support the query predicate. */ + hint?: Hint; +} + +export { UUID } + +/** @public */ +export declare interface ValidateCollectionOptions extends CommandOperationOptions { + /** Validates a collection in the background, without interrupting read or write traffic (only in MongoDB 4.4+) */ + background?: boolean; +} + +/** @public */ +export declare type W = number | 'majority'; + +/* Excluded from this release type: WAITING_FOR_SUITABLE_SERVER */ + +/* Excluded from this release type: WaitingForSuitableServerEvent */ + +/* Excluded from this release type: WaitQueueMember */ + +/* Excluded from this release type: WithConnectionCallback */ + +/** Add an _id field to an object shaped type @public */ +export declare type WithId = EnhancedOmit & { + _id: InferIdType; +}; + +/** Remove the _id field from an object shaped type @public */ +export declare type WithoutId = Omit; + +/** @public */ +export declare type WithSessionCallback = (session: ClientSession) => Promise; + +/** @public */ +export declare type WithTransactionCallback = (session: ClientSession) => Promise; + +/** + * A MongoDB WriteConcern, which describes the level of acknowledgement + * requested from MongoDB for write operations. + * @public + * + * @see https://www.mongodb.com/docs/manual/reference/write-concern/ + */ +export declare class WriteConcern { + /** Request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags. */ + readonly w?: W; + /** Request acknowledgment that the write operation has been written to the on-disk journal */ + readonly journal?: boolean; + /** Specify a time limit to prevent write operations from blocking indefinitely */ + readonly wtimeoutMS?: number; + /** + * Specify a time limit to prevent write operations from blocking indefinitely. + * @deprecated Will be removed in the next major version. Please use wtimeoutMS. + */ + wtimeout?: number; + /** + * Request acknowledgment that the write operation has been written to the on-disk journal. + * @deprecated Will be removed in the next major version. Please use journal. + */ + j?: boolean; + /** + * Equivalent to the j option. + * @deprecated Will be removed in the next major version. Please use journal. + */ + fsync?: boolean | 1; + /** + * Constructs a WriteConcern from the write concern properties. + * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags. + * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely + * @param journal - request acknowledgment that the write operation has been written to the on-disk journal + * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version. + */ + constructor(w?: W, wtimeoutMS?: number, journal?: boolean, fsync?: boolean | 1); + /** + * Apply a write concern to a command document. Will modify and return the command. + */ + static apply(command: Document, writeConcern: WriteConcern): Document; + /** Construct a WriteConcern given an options object. */ + static fromOptions(options?: WriteConcernOptions | WriteConcern | W, inherit?: WriteConcernOptions | WriteConcern): WriteConcern | undefined; +} + +/** + * An error representing a failure by the server to apply the requested write concern to the bulk operation. + * @public + * @category Error + */ +export declare class WriteConcernError { + /* Excluded from this release type: [kServerError] */ + constructor(error: WriteConcernErrorData); + /** Write concern error code. */ + get code(): number | undefined; + /** Write concern error message. */ + get errmsg(): string | undefined; + /** Write concern error info. */ + get errInfo(): Document | undefined; + toJSON(): WriteConcernErrorData; + toString(): string; +} + +/** @public */ +export declare interface WriteConcernErrorData { + code: number; + errmsg: string; + errInfo?: Document; +} + +/** @public */ +export declare interface WriteConcernOptions { + /** Write Concern as an object */ + writeConcern?: WriteConcern | WriteConcernSettings; +} + +/** @public */ +export declare interface WriteConcernSettings { + /** The write concern */ + w?: W; + /** The write concern timeout */ + wtimeoutMS?: number; + /** The journal write concern */ + journal?: boolean; + /** + * The journal write concern. + * @deprecated Will be removed in the next major version. Please use the journal option. + */ + j?: boolean; + /** + * The write concern timeout. + * @deprecated Will be removed in the next major version. Please use the wtimeoutMS option. + */ + wtimeout?: number; + /** + * The file sync write concern. + * @deprecated Will be removed in the next major version. Please use the journal option. + */ + fsync?: boolean | 1; +} + +/** + * An error that occurred during a BulkWrite on the server. + * @public + * @category Error + */ +export declare class WriteError { + err: BulkWriteOperationError; + constructor(err: BulkWriteOperationError); + /** WriteError code. */ + get code(): number; + /** WriteError original bulk operation index. */ + get index(): number; + /** WriteError message. */ + get errmsg(): string | undefined; + /** WriteError details. */ + get errInfo(): Document | undefined; + /** Returns the underlying operation that caused the error */ + getOperation(): Document; + toJSON(): { + code: number; + index: number; + errmsg?: string; + op: Document; + }; + toString(): string; +} + +/* Excluded from this release type: WriteProtocolMessageType */ + +export { } diff --git a/week-3/04-course-app-hard/node_modules/mongodb/package.json b/week-3/04-course-app-hard/node_modules/mongodb/package.json new file mode 100644 index 000000000..03693ddd1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/package.json @@ -0,0 +1,178 @@ +{ + "name": "mongodb", + "version": "6.6.2", + "description": "The official MongoDB driver for Node.js", + "main": "lib/index.js", + "files": [ + "lib", + "src", + "etc/prepare.js", + "mongodb.d.ts", + "tsconfig.json" + ], + "types": "mongodb.d.ts", + "repository": { + "type": "git", + "url": "git@github.com:mongodb/node-mongodb-native.git" + }, + "keywords": [ + "mongodb", + "driver", + "official" + ], + "author": { + "name": "The MongoDB NodeJS Team", + "email": "dbx-node@mongodb.com" + }, + "dependencies": { + "@mongodb-js/saslprep": "^1.1.5", + "bson": "^6.7.0", + "mongodb-connection-string-url": "^3.0.0" + }, + "peerDependencies": { + "@aws-sdk/credential-providers": "^3.188.0", + "@mongodb-js/zstd": "^1.1.0", + "gcp-metadata": "^5.2.0", + "kerberos": "^2.0.1", + "mongodb-client-encryption": ">=6.0.0 <7", + "snappy": "^7.2.2", + "socks": "^2.7.1" + }, + "peerDependenciesMeta": { + "@aws-sdk/credential-providers": { + "optional": true + }, + "@mongodb-js/zstd": { + "optional": true + }, + "kerberos": { + "optional": true + }, + "snappy": { + "optional": true + }, + "mongodb-client-encryption": { + "optional": true + }, + "gcp-metadata": { + "optional": true + }, + "socks": { + "optional": true + } + }, + "devDependencies": { + "@aws-sdk/credential-providers": "^3.515.0", + "@iarna/toml": "^2.2.5", + "@istanbuljs/nyc-config-typescript": "^1.0.2", + "@microsoft/api-extractor": "^7.43.1", + "@microsoft/tsdoc-config": "^0.16.2", + "@mongodb-js/zstd": "^1.2.0", + "@octokit/core": "^6.1.2", + "@types/chai": "^4.3.14", + "@types/chai-subset": "^1.3.5", + "@types/express": "^4.17.21", + "@types/kerberos": "^1.1.5", + "@types/mocha": "^10.0.6", + "@types/node": "^20.12.7", + "@types/saslprep": "^1.0.3", + "@types/semver": "^7.5.8", + "@types/sinon": "^17.0.3", + "@types/sinon-chai": "^3.2.12", + "@types/whatwg-url": "^11.0.4", + "@typescript-eslint/eslint-plugin": "^5.62.0", + "@typescript-eslint/parser": "^5.62.0", + "chai": "^4.4.1", + "chai-subset": "^1.6.0", + "chalk": "^4.1.2", + "eslint": "^8.56.0", + "eslint-config-prettier": "^8.10.0", + "eslint-plugin-github": "^4.10.2", + "eslint-plugin-import": "^2.29.1", + "eslint-plugin-mocha": "^10.4.1", + "eslint-plugin-prettier": "^4.2.1", + "eslint-plugin-simple-import-sort": "^10.0.0", + "eslint-plugin-tsdoc": "^0.2.17", + "eslint-plugin-unused-imports": "^2.0.0", + "express": "^4.19.2", + "gcp-metadata": "^5.3.0", + "js-yaml": "^4.1.0", + "mocha": "^10.4.0", + "mocha-sinon": "^2.1.2", + "mongodb-client-encryption": "^6.0.0", + "mongodb-legacy": "^6.0.1", + "nyc": "^15.1.0", + "prettier": "^2.8.8", + "semver": "^7.6.0", + "sinon": "^17.0.1", + "sinon-chai": "^3.7.0", + "snappy": "^7.2.2", + "socks": "^2.8.1", + "source-map-support": "^0.5.21", + "ts-node": "^10.9.2", + "tsd": "^0.31.0", + "typescript": "5.0", + "typescript-cached-transpile": "^0.0.6", + "v8-heapsnapshot": "^1.3.1", + "yargs": "^17.7.2" + }, + "license": "Apache-2.0", + "engines": { + "node": ">=16.20.1" + }, + "bugs": { + "url": "https://jira.mongodb.org/projects/NODE/issues/" + }, + "homepage": "https://github.com/mongodb/node-mongodb-native", + "scripts": { + "build:evergreen": "node .evergreen/generate_evergreen_tasks.js", + "build:ts": "node ./node_modules/typescript/bin/tsc", + "build:dts": "npm run build:ts && api-extractor run && node etc/clean_definition_files.cjs && eslint mongodb.d.ts --fix", + "build:docs": "./etc/docs/build.ts", + "build:typedoc": "typedoc", + "build:nightly": "node ./.github/scripts/nightly.mjs", + "check:bench": "node test/benchmarks/driverBench", + "check:coverage": "nyc npm run test:all", + "check:integration-coverage": "nyc npm run check:test", + "check:lambda": "mocha --config test/mocha_lambda.json test/integration/node-specific/examples/handler.test.js", + "check:lambda:aws": "mocha --config test/mocha_lambda.json test/integration/node-specific/examples/aws_handler.test.js", + "check:lint": "npm run build:dts && npm run check:dts && npm run check:eslint && npm run check:tsd", + "check:eslint": "eslint -v && eslint --max-warnings=0 --ext '.js,.ts' src test", + "check:tsd": "tsd --version && tsd", + "check:dependencies": "mocha test/action/dependency.test.ts", + "check:dts": "node ./node_modules/typescript/bin/tsc --noEmit mongodb.d.ts && tsd", + "check:search-indexes": "nyc mocha --config test/mocha_mongodb.json test/manual/search-index-management.prose.test.ts", + "check:test": "mocha --config test/mocha_mongodb.json test/integration", + "check:unit": "mocha test/unit", + "check:ts": "node ./node_modules/typescript/bin/tsc -v && node ./node_modules/typescript/bin/tsc --noEmit", + "check:atlas": "mocha --config test/manual/mocharc.json test/manual/atlas_connectivity.test.ts", + "check:drivers-atlas-testing": "mocha --config test/mocha_mongodb.json test/atlas/drivers_atlas_testing.test.ts", + "check:adl": "mocha --config test/mocha_mongodb.json test/manual/atlas-data-lake-testing", + "check:aws": "nyc mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_aws.test.ts", + "check:oidc": "mocha --config test/mocha_mongodb.json test/manual/mongodb_oidc.prose.test.ts", + "check:oidc-azure": "mocha --config test/mocha_mongodb.json test/integration/auth/mongodb_oidc_azure.prose.test.ts", + "check:ocsp": "mocha --config test/manual/mocharc.json test/manual/ocsp_support.test.js", + "check:kerberos": "nyc mocha --config test/manual/mocharc.json test/manual/kerberos.test.ts", + "check:tls": "mocha --config test/manual/mocharc.json test/manual/tls_support.test.ts", + "check:ldap": "nyc mocha --config test/manual/mocharc.json test/manual/ldap.test.js", + "check:socks5": "mocha --config test/manual/mocharc.json test/manual/socks5.test.ts", + "check:csfle": "mocha --config test/mocha_mongodb.json test/integration/client-side-encryption", + "check:snappy": "mocha test/unit/assorted/snappy.test.js", + "check:x509": "mocha test/manual/x509_auth.test.ts", + "fix:eslint": "npm run check:eslint -- --fix", + "prepare": "node etc/prepare.js", + "preview:docs": "ts-node etc/docs/preview.ts", + "test": "npm run check:lint && npm run test:all", + "test:all": "npm run check:unit && npm run check:test", + "update:docs": "npm run build:docs -- --yes" + }, + "tsd": { + "directory": "test/types", + "compilerOptions": { + "strict": true, + "target": "esnext", + "module": "commonjs", + "moduleResolution": "node" + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/admin.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/admin.ts new file mode 100644 index 000000000..a71ac4be1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/admin.ts @@ -0,0 +1,168 @@ +import { type Document, resolveBSONOptions } from './bson'; +import type { Db } from './db'; +import type { CommandOperationOptions } from './operations/command'; +import { executeOperation } from './operations/execute_operation'; +import { + ListDatabasesOperation, + type ListDatabasesOptions, + type ListDatabasesResult +} from './operations/list_databases'; +import { RemoveUserOperation, type RemoveUserOptions } from './operations/remove_user'; +import { RunAdminCommandOperation, type RunCommandOptions } from './operations/run_command'; +import { + ValidateCollectionOperation, + type ValidateCollectionOptions +} from './operations/validate_collection'; + +/** @internal */ +export interface AdminPrivate { + db: Db; +} + +/** + * The **Admin** class is an internal class that allows convenient access to + * the admin functionality and commands for MongoDB. + * + * **ADMIN Cannot directly be instantiated** + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const admin = client.db().admin(); + * const dbInfo = await admin.listDatabases(); + * for (const db of dbInfo.databases) { + * console.log(db.name); + * } + * ``` + */ +export class Admin { + /** @internal */ + s: AdminPrivate; + + /** + * Create a new Admin instance + * @internal + */ + constructor(db: Db) { + this.s = { db }; + } + + /** + * Execute a command + * + * The driver will ensure the following fields are attached to the command sent to the server: + * - `lsid` - sourced from an implicit session or options.session + * - `$readPreference` - defaults to primary or can be configured by options.readPreference + * - `$db` - sourced from the name of this database + * + * If the client has a serverApi setting: + * - `apiVersion` + * - `apiStrict` + * - `apiDeprecationErrors` + * + * When in a transaction: + * - `readConcern` - sourced from readConcern set on the TransactionOptions + * - `writeConcern` - sourced from writeConcern set on the TransactionOptions + * + * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value. + * + * @param command - The command to execute + * @param options - Optional settings for the command + */ + async command(command: Document, options?: RunCommandOptions): Promise { + return await executeOperation( + this.s.db.client, + new RunAdminCommandOperation(command, { + ...resolveBSONOptions(options), + session: options?.session, + readPreference: options?.readPreference + }) + ); + } + + /** + * Retrieve the server build information + * + * @param options - Optional settings for the command + */ + async buildInfo(options?: CommandOperationOptions): Promise { + return await this.command({ buildinfo: 1 }, options); + } + + /** + * Retrieve the server build information + * + * @param options - Optional settings for the command + */ + async serverInfo(options?: CommandOperationOptions): Promise { + return await this.command({ buildinfo: 1 }, options); + } + + /** + * Retrieve this db's server status. + * + * @param options - Optional settings for the command + */ + async serverStatus(options?: CommandOperationOptions): Promise { + return await this.command({ serverStatus: 1 }, options); + } + + /** + * Ping the MongoDB server and retrieve results + * + * @param options - Optional settings for the command + */ + async ping(options?: CommandOperationOptions): Promise { + return await this.command({ ping: 1 }, options); + } + + /** + * Remove a user from a database + * + * @param username - The username to remove + * @param options - Optional settings for the command + */ + async removeUser(username: string, options?: RemoveUserOptions): Promise { + return await executeOperation( + this.s.db.client, + new RemoveUserOperation(this.s.db, username, { dbName: 'admin', ...options }) + ); + } + + /** + * Validate an existing collection + * + * @param collectionName - The name of the collection to validate. + * @param options - Optional settings for the command + */ + async validateCollection( + collectionName: string, + options: ValidateCollectionOptions = {} + ): Promise { + return await executeOperation( + this.s.db.client, + new ValidateCollectionOperation(this, collectionName, options) + ); + } + + /** + * List the available databases + * + * @param options - Optional settings for the command + */ + async listDatabases(options?: ListDatabasesOptions): Promise { + return await executeOperation(this.s.db.client, new ListDatabasesOperation(this.s.db, options)); + } + + /** + * Get ReplicaSet status + * + * @param options - Optional settings for the command + */ + async replSetGetStatus(options?: CommandOperationOptions): Promise { + return await this.command({ replSetGetStatus: 1 }, options); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/bson.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/bson.ts new file mode 100644 index 000000000..7938a2b17 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/bson.ts @@ -0,0 +1,134 @@ +import type { DeserializeOptions, SerializeOptions } from 'bson'; +import { BSON } from 'bson'; + +export { + Binary, + BSON, + BSONError, + BSONRegExp, + BSONSymbol, + BSONType, + calculateObjectSize, + Code, + DBRef, + Decimal128, + deserialize, + Document, + Double, + EJSON, + EJSONOptions, + Int32, + Long, + MaxKey, + MinKey, + ObjectId, + serialize, + Timestamp, + UUID +} from 'bson'; + +export type BSONElement = BSON.OnDemand['BSONElement']; + +export function parseToElementsToArray(bytes: Uint8Array, offset?: number): BSONElement[] { + const res = BSON.onDemand.parseToElements(bytes, offset); + return Array.isArray(res) ? res : [...res]; +} + +export const getInt32LE = BSON.onDemand.NumberUtils.getInt32LE; +export const getFloat64LE = BSON.onDemand.NumberUtils.getFloat64LE; +export const getBigInt64LE = BSON.onDemand.NumberUtils.getBigInt64LE; +export const toUTF8 = BSON.onDemand.ByteUtils.toUTF8; + +/** + * BSON Serialization options. + * @public + */ +export interface BSONSerializeOptions + extends Omit, + Omit< + DeserializeOptions, + | 'evalFunctions' + | 'cacheFunctions' + | 'cacheFunctionsCrc32' + | 'allowObjectSmallerThanBufferSize' + | 'index' + | 'validation' + > { + /** + * Enabling the raw option will return a [Node.js Buffer](https://nodejs.org/api/buffer.html) + * which is allocated using [allocUnsafe API](https://nodejs.org/api/buffer.html#static-method-bufferallocunsafesize). + * See this section from the [Node.js Docs here](https://nodejs.org/api/buffer.html#what-makes-bufferallocunsafe-and-bufferallocunsafeslow-unsafe) + * for more detail about what "unsafe" refers to in this context. + * If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate + * your own buffer and clone the contents: + * + * @example + * ```ts + * const raw = await collection.findOne({}, { raw: true }); + * const myBuffer = Buffer.alloc(raw.byteLength); + * myBuffer.set(raw, 0); + * // Only save and use `myBuffer` beyond this point + * ``` + * + * @remarks + * Please note there is a known limitation where this option cannot be used at the MongoClient level (see [NODE-3946](https://jira.mongodb.org/browse/NODE-3946)). + * It does correctly work at `Db`, `Collection`, and per operation the same as other BSON options work. + */ + raw?: boolean; + + /** Enable utf8 validation when deserializing BSON documents. Defaults to true. */ + enableUtf8Validation?: boolean; +} + +export function pluckBSONSerializeOptions(options: BSONSerializeOptions): BSONSerializeOptions { + const { + fieldsAsRaw, + useBigInt64, + promoteValues, + promoteBuffers, + promoteLongs, + serializeFunctions, + ignoreUndefined, + bsonRegExp, + raw, + enableUtf8Validation + } = options; + return { + fieldsAsRaw, + useBigInt64, + promoteValues, + promoteBuffers, + promoteLongs, + serializeFunctions, + ignoreUndefined, + bsonRegExp, + raw, + enableUtf8Validation + }; +} + +/** + * Merge the given BSONSerializeOptions, preferring options over the parent's options, and + * substituting defaults for values not set. + * + * @internal + */ +export function resolveBSONOptions( + options?: BSONSerializeOptions, + parent?: { bsonOptions?: BSONSerializeOptions } +): BSONSerializeOptions { + const parentOptions = parent?.bsonOptions; + return { + raw: options?.raw ?? parentOptions?.raw ?? false, + useBigInt64: options?.useBigInt64 ?? parentOptions?.useBigInt64 ?? false, + promoteLongs: options?.promoteLongs ?? parentOptions?.promoteLongs ?? true, + promoteValues: options?.promoteValues ?? parentOptions?.promoteValues ?? true, + promoteBuffers: options?.promoteBuffers ?? parentOptions?.promoteBuffers ?? false, + ignoreUndefined: options?.ignoreUndefined ?? parentOptions?.ignoreUndefined ?? false, + bsonRegExp: options?.bsonRegExp ?? parentOptions?.bsonRegExp ?? false, + serializeFunctions: options?.serializeFunctions ?? parentOptions?.serializeFunctions ?? false, + fieldsAsRaw: options?.fieldsAsRaw ?? parentOptions?.fieldsAsRaw ?? {}, + enableUtf8Validation: + options?.enableUtf8Validation ?? parentOptions?.enableUtf8Validation ?? true + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/common.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/common.ts new file mode 100644 index 000000000..892952c3c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/common.ts @@ -0,0 +1,1301 @@ +import { promisify } from 'util'; + +import { type BSONSerializeOptions, type Document, resolveBSONOptions } from '../bson'; +import type { Collection } from '../collection'; +import { + type AnyError, + MongoBatchReExecutionError, + MONGODB_ERROR_CODES, + MongoInvalidArgumentError, + MongoServerError, + MongoWriteConcernError +} from '../error'; +import type { Filter, OneOrMore, OptionalId, UpdateFilter, WithoutId } from '../mongo_types'; +import type { CollationOptions, CommandOperationOptions } from '../operations/command'; +import { DeleteOperation, type DeleteStatement, makeDeleteStatement } from '../operations/delete'; +import { executeOperation } from '../operations/execute_operation'; +import { InsertOperation } from '../operations/insert'; +import { AbstractOperation, type Hint } from '../operations/operation'; +import { makeUpdateStatement, UpdateOperation, type UpdateStatement } from '../operations/update'; +import type { Server } from '../sdam/server'; +import type { Topology } from '../sdam/topology'; +import type { ClientSession } from '../sessions'; +import { maybeAddIdToDocuments } from '../utils'; +import { + applyRetryableWrites, + type Callback, + getTopology, + hasAtomicOperators, + type MongoDBNamespace, + resolveOptions +} from '../utils'; +import { WriteConcern } from '../write_concern'; + +/** @internal */ +const kServerError = Symbol('serverError'); + +/** @public */ +export const BatchType = Object.freeze({ + INSERT: 1, + UPDATE: 2, + DELETE: 3 +} as const); + +/** @public */ +export type BatchType = (typeof BatchType)[keyof typeof BatchType]; + +/** @public */ +export interface InsertOneModel { + /** The document to insert. */ + document: OptionalId; +} + +/** @public */ +export interface DeleteOneModel { + /** The filter to limit the deleted documents. */ + filter: Filter; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; +} + +/** @public */ +export interface DeleteManyModel { + /** The filter to limit the deleted documents. */ + filter: Filter; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; +} + +/** @public */ +export interface ReplaceOneModel { + /** The filter to limit the replaced document. */ + filter: Filter; + /** The document with which to replace the matched document. */ + replacement: WithoutId; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; +} + +/** @public */ +export interface UpdateOneModel { + /** The filter to limit the updated documents. */ + filter: Filter; + /** + * The modifications to apply. The value can be either: + * UpdateFilter - A document that contains update operator expressions, + * Document[] - an aggregation pipeline. + */ + update: UpdateFilter | Document[]; + /** A set of filters specifying to which array elements an update should apply. */ + arrayFilters?: Document[]; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; +} + +/** @public */ +export interface UpdateManyModel { + /** The filter to limit the updated documents. */ + filter: Filter; + /** + * The modifications to apply. The value can be either: + * UpdateFilter - A document that contains update operator expressions, + * Document[] - an aggregation pipeline. + */ + update: UpdateFilter | Document[]; + /** A set of filters specifying to which array elements an update should apply. */ + arrayFilters?: Document[]; + /** Specifies a collation. */ + collation?: CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; +} + +/** @public */ +export type AnyBulkWriteOperation = + | { insertOne: InsertOneModel } + | { replaceOne: ReplaceOneModel } + | { updateOne: UpdateOneModel } + | { updateMany: UpdateManyModel } + | { deleteOne: DeleteOneModel } + | { deleteMany: DeleteManyModel }; + +/** @internal */ +export interface BulkResult { + ok: number; + writeErrors: WriteError[]; + writeConcernErrors: WriteConcernError[]; + insertedIds: Document[]; + nInserted: number; + nUpserted: number; + nMatched: number; + nModified: number; + nRemoved: number; + upserted: Document[]; +} + +/** + * Keeps the state of a unordered batch so we can rewrite the results + * correctly after command execution + * + * @public + */ +export class Batch { + originalZeroIndex: number; + currentIndex: number; + originalIndexes: number[]; + batchType: BatchType; + operations: T[]; + size: number; + sizeBytes: number; + + constructor(batchType: BatchType, originalZeroIndex: number) { + this.originalZeroIndex = originalZeroIndex; + this.currentIndex = 0; + this.originalIndexes = []; + this.batchType = batchType; + this.operations = []; + this.size = 0; + this.sizeBytes = 0; + } +} + +/** + * @public + * The result of a bulk write. + */ +export class BulkWriteResult { + private readonly result: BulkResult; + /** Number of documents inserted. */ + readonly insertedCount: number; + /** Number of documents matched for update. */ + readonly matchedCount: number; + /** Number of documents modified. */ + readonly modifiedCount: number; + /** Number of documents deleted. */ + readonly deletedCount: number; + /** Number of documents upserted. */ + readonly upsertedCount: number; + /** Upserted document generated Id's, hash key is the index of the originating operation */ + readonly upsertedIds: { [key: number]: any }; + /** Inserted document generated Id's, hash key is the index of the originating operation */ + readonly insertedIds: { [key: number]: any }; + + private static generateIdMap(ids: Document[]): { [key: number]: any } { + const idMap: { [index: number]: any } = {}; + for (const doc of ids) { + idMap[doc.index] = doc._id; + } + return idMap; + } + + /** + * Create a new BulkWriteResult instance + * @internal + */ + constructor(bulkResult: BulkResult, isOrdered: boolean) { + this.result = bulkResult; + this.insertedCount = this.result.nInserted ?? 0; + this.matchedCount = this.result.nMatched ?? 0; + this.modifiedCount = this.result.nModified ?? 0; + this.deletedCount = this.result.nRemoved ?? 0; + this.upsertedCount = this.result.upserted.length ?? 0; + this.upsertedIds = BulkWriteResult.generateIdMap(this.result.upserted); + this.insertedIds = BulkWriteResult.generateIdMap( + this.getSuccessfullyInsertedIds(bulkResult, isOrdered) + ); + Object.defineProperty(this, 'result', { value: this.result, enumerable: false }); + } + + /** Evaluates to true if the bulk operation correctly executes */ + get ok(): number { + return this.result.ok; + } + + /** + * Returns document_ids that were actually inserted + * @internal + */ + private getSuccessfullyInsertedIds(bulkResult: BulkResult, isOrdered: boolean): Document[] { + if (bulkResult.writeErrors.length === 0) return bulkResult.insertedIds; + + if (isOrdered) { + return bulkResult.insertedIds.slice(0, bulkResult.writeErrors[0].index); + } + + return bulkResult.insertedIds.filter( + ({ index }) => !bulkResult.writeErrors.some(writeError => index === writeError.index) + ); + } + + /** Returns the upserted id at the given index */ + getUpsertedIdAt(index: number): Document | undefined { + return this.result.upserted[index]; + } + + /** Returns raw internal result */ + getRawResponse(): Document { + return this.result; + } + + /** Returns true if the bulk operation contains a write error */ + hasWriteErrors(): boolean { + return this.result.writeErrors.length > 0; + } + + /** Returns the number of write errors off the bulk operation */ + getWriteErrorCount(): number { + return this.result.writeErrors.length; + } + + /** Returns a specific write error object */ + getWriteErrorAt(index: number): WriteError | undefined { + return index < this.result.writeErrors.length ? this.result.writeErrors[index] : undefined; + } + + /** Retrieve all write errors */ + getWriteErrors(): WriteError[] { + return this.result.writeErrors; + } + + /** Retrieve the write concern error if one exists */ + getWriteConcernError(): WriteConcernError | undefined { + if (this.result.writeConcernErrors.length === 0) { + return; + } else if (this.result.writeConcernErrors.length === 1) { + // Return the error + return this.result.writeConcernErrors[0]; + } else { + // Combine the errors + let errmsg = ''; + for (let i = 0; i < this.result.writeConcernErrors.length; i++) { + const err = this.result.writeConcernErrors[i]; + errmsg = errmsg + err.errmsg; + + // TODO: Something better + if (i === 0) errmsg = errmsg + ' and '; + } + + return new WriteConcernError({ errmsg, code: MONGODB_ERROR_CODES.WriteConcernFailed }); + } + } + + toString(): string { + return `BulkWriteResult(${this.result})`; + } + + isOk(): boolean { + return this.result.ok === 1; + } +} + +/** @public */ +export interface WriteConcernErrorData { + code: number; + errmsg: string; + errInfo?: Document; +} + +/** + * An error representing a failure by the server to apply the requested write concern to the bulk operation. + * @public + * @category Error + */ +export class WriteConcernError { + /** @internal */ + [kServerError]: WriteConcernErrorData; + + constructor(error: WriteConcernErrorData) { + this[kServerError] = error; + } + + /** Write concern error code. */ + get code(): number | undefined { + return this[kServerError].code; + } + + /** Write concern error message. */ + get errmsg(): string | undefined { + return this[kServerError].errmsg; + } + + /** Write concern error info. */ + get errInfo(): Document | undefined { + return this[kServerError].errInfo; + } + + toJSON(): WriteConcernErrorData { + return this[kServerError]; + } + + toString(): string { + return `WriteConcernError(${this.errmsg})`; + } +} + +/** @public */ +export interface BulkWriteOperationError { + index: number; + code: number; + errmsg: string; + errInfo: Document; + op: Document | UpdateStatement | DeleteStatement; +} + +/** + * An error that occurred during a BulkWrite on the server. + * @public + * @category Error + */ +export class WriteError { + err: BulkWriteOperationError; + + constructor(err: BulkWriteOperationError) { + this.err = err; + } + + /** WriteError code. */ + get code(): number { + return this.err.code; + } + + /** WriteError original bulk operation index. */ + get index(): number { + return this.err.index; + } + + /** WriteError message. */ + get errmsg(): string | undefined { + return this.err.errmsg; + } + + /** WriteError details. */ + get errInfo(): Document | undefined { + return this.err.errInfo; + } + + /** Returns the underlying operation that caused the error */ + getOperation(): Document { + return this.err.op; + } + + toJSON(): { code: number; index: number; errmsg?: string; op: Document } { + return { code: this.err.code, index: this.err.index, errmsg: this.err.errmsg, op: this.err.op }; + } + + toString(): string { + return `WriteError(${JSON.stringify(this.toJSON())})`; + } +} + +/** Merges results into shared data structure */ +export function mergeBatchResults( + batch: Batch, + bulkResult: BulkResult, + err?: AnyError, + result?: Document +): void { + // If we have an error set the result to be the err object + if (err) { + result = err; + } else if (result && result.result) { + result = result.result; + } + + if (result == null) { + return; + } + + // Do we have a top level error stop processing and return + if (result.ok === 0 && bulkResult.ok === 1) { + bulkResult.ok = 0; + + const writeError = { + index: 0, + code: result.code || 0, + errmsg: result.message, + errInfo: result.errInfo, + op: batch.operations[0] + }; + + bulkResult.writeErrors.push(new WriteError(writeError)); + return; + } else if (result.ok === 0 && bulkResult.ok === 0) { + return; + } + + // If we have an insert Batch type + if (isInsertBatch(batch) && result.n) { + bulkResult.nInserted = bulkResult.nInserted + result.n; + } + + // If we have an insert Batch type + if (isDeleteBatch(batch) && result.n) { + bulkResult.nRemoved = bulkResult.nRemoved + result.n; + } + + let nUpserted = 0; + + // We have an array of upserted values, we need to rewrite the indexes + if (Array.isArray(result.upserted)) { + nUpserted = result.upserted.length; + + for (let i = 0; i < result.upserted.length; i++) { + bulkResult.upserted.push({ + index: result.upserted[i].index + batch.originalZeroIndex, + _id: result.upserted[i]._id + }); + } + } else if (result.upserted) { + nUpserted = 1; + + bulkResult.upserted.push({ + index: batch.originalZeroIndex, + _id: result.upserted + }); + } + + // If we have an update Batch type + if (isUpdateBatch(batch) && result.n) { + const nModified = result.nModified; + bulkResult.nUpserted = bulkResult.nUpserted + nUpserted; + bulkResult.nMatched = bulkResult.nMatched + (result.n - nUpserted); + + if (typeof nModified === 'number') { + bulkResult.nModified = bulkResult.nModified + nModified; + } else { + bulkResult.nModified = 0; + } + } + + if (Array.isArray(result.writeErrors)) { + for (let i = 0; i < result.writeErrors.length; i++) { + const writeError = { + index: batch.originalIndexes[result.writeErrors[i].index], + code: result.writeErrors[i].code, + errmsg: result.writeErrors[i].errmsg, + errInfo: result.writeErrors[i].errInfo, + op: batch.operations[result.writeErrors[i].index] + }; + + bulkResult.writeErrors.push(new WriteError(writeError)); + } + } + + if (result.writeConcernError) { + bulkResult.writeConcernErrors.push(new WriteConcernError(result.writeConcernError)); + } +} + +function executeCommands( + bulkOperation: BulkOperationBase, + options: BulkWriteOptions, + callback: Callback +) { + if (bulkOperation.s.batches.length === 0) { + return callback( + undefined, + new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered) + ); + } + + const batch = bulkOperation.s.batches.shift() as Batch; + + function resultHandler(err?: AnyError, result?: Document) { + // Error is a driver related error not a bulk op error, return early + if (err && 'message' in err && !(err instanceof MongoWriteConcernError)) { + return callback( + new MongoBulkWriteError( + err, + new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered) + ) + ); + } + + if (err instanceof MongoWriteConcernError) { + return handleMongoWriteConcernError( + batch, + bulkOperation.s.bulkResult, + bulkOperation.isOrdered, + err, + callback + ); + } + + // Merge the results together + mergeBatchResults(batch, bulkOperation.s.bulkResult, err, result); + const writeResult = new BulkWriteResult(bulkOperation.s.bulkResult, bulkOperation.isOrdered); + if (bulkOperation.handleWriteError(callback, writeResult)) return; + + // Execute the next command in line + executeCommands(bulkOperation, options, callback); + } + + const finalOptions = resolveOptions(bulkOperation, { + ...options, + ordered: bulkOperation.isOrdered + }); + + if (finalOptions.bypassDocumentValidation !== true) { + delete finalOptions.bypassDocumentValidation; + } + + // Set an operationIf if provided + if (bulkOperation.operationId) { + resultHandler.operationId = bulkOperation.operationId; + } + + // Is the bypassDocumentValidation options specific + if (bulkOperation.s.bypassDocumentValidation === true) { + finalOptions.bypassDocumentValidation = true; + } + + // Is the checkKeys option disabled + if (bulkOperation.s.checkKeys === false) { + finalOptions.checkKeys = false; + } + + if (finalOptions.retryWrites) { + if (isUpdateBatch(batch)) { + finalOptions.retryWrites = finalOptions.retryWrites && !batch.operations.some(op => op.multi); + } + + if (isDeleteBatch(batch)) { + finalOptions.retryWrites = + finalOptions.retryWrites && !batch.operations.some(op => op.limit === 0); + } + } + + try { + const operation = isInsertBatch(batch) + ? new InsertOperation(bulkOperation.s.namespace, batch.operations, finalOptions) + : isUpdateBatch(batch) + ? new UpdateOperation(bulkOperation.s.namespace, batch.operations, finalOptions) + : isDeleteBatch(batch) + ? new DeleteOperation(bulkOperation.s.namespace, batch.operations, finalOptions) + : null; + + if (operation != null) { + // eslint-disable-next-line github/no-then + executeOperation(bulkOperation.s.collection.client, operation).then( + result => resultHandler(undefined, result), + error => resultHandler(error) + ); + } + } catch (err) { + // Force top level error + err.ok = 0; + // Merge top level error and return + mergeBatchResults(batch, bulkOperation.s.bulkResult, err, undefined); + callback(); + } +} + +function handleMongoWriteConcernError( + batch: Batch, + bulkResult: BulkResult, + isOrdered: boolean, + err: MongoWriteConcernError, + callback: Callback +) { + mergeBatchResults(batch, bulkResult, undefined, err.result); + + callback( + new MongoBulkWriteError( + { + message: err.result?.writeConcernError.errmsg, + code: err.result?.writeConcernError.result + }, + new BulkWriteResult(bulkResult, isOrdered) + ) + ); +} + +/** + * An error indicating an unsuccessful Bulk Write + * @public + * @category Error + */ +export class MongoBulkWriteError extends MongoServerError { + result: BulkWriteResult; + writeErrors: OneOrMore = []; + err?: WriteConcernError; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor( + error: + | { message: string; code: number; writeErrors?: WriteError[] } + | WriteConcernError + | AnyError, + result: BulkWriteResult + ) { + super(error); + + if (error instanceof WriteConcernError) this.err = error; + else if (!(error instanceof Error)) { + this.message = error.message; + this.code = error.code; + this.writeErrors = error.writeErrors ?? []; + } + + this.result = result; + Object.assign(this, error); + } + + override get name(): string { + return 'MongoBulkWriteError'; + } + + /** Number of documents inserted. */ + get insertedCount(): number { + return this.result.insertedCount; + } + /** Number of documents matched for update. */ + get matchedCount(): number { + return this.result.matchedCount; + } + /** Number of documents modified. */ + get modifiedCount(): number { + return this.result.modifiedCount; + } + /** Number of documents deleted. */ + get deletedCount(): number { + return this.result.deletedCount; + } + /** Number of documents upserted. */ + get upsertedCount(): number { + return this.result.upsertedCount; + } + /** Inserted document generated Id's, hash key is the index of the originating operation */ + get insertedIds(): { [key: number]: any } { + return this.result.insertedIds; + } + /** Upserted document generated Id's, hash key is the index of the originating operation */ + get upsertedIds(): { [key: number]: any } { + return this.result.upsertedIds; + } +} + +/** + * A builder object that is returned from {@link BulkOperationBase#find}. + * Is used to build a write operation that involves a query filter. + * + * @public + */ +export class FindOperators { + bulkOperation: BulkOperationBase; + + /** + * Creates a new FindOperators object. + * @internal + */ + constructor(bulkOperation: BulkOperationBase) { + this.bulkOperation = bulkOperation; + } + + /** Add a multiple update operation to the bulk operation */ + update(updateDocument: Document | Document[]): BulkOperationBase { + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList( + BatchType.UPDATE, + makeUpdateStatement(currentOp.selector, updateDocument, { + ...currentOp, + multi: true + }) + ); + } + + /** Add a single update operation to the bulk operation */ + updateOne(updateDocument: Document | Document[]): BulkOperationBase { + if (!hasAtomicOperators(updateDocument)) { + throw new MongoInvalidArgumentError('Update document requires atomic operators'); + } + + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList( + BatchType.UPDATE, + makeUpdateStatement(currentOp.selector, updateDocument, { ...currentOp, multi: false }) + ); + } + + /** Add a replace one operation to the bulk operation */ + replaceOne(replacement: Document): BulkOperationBase { + if (hasAtomicOperators(replacement)) { + throw new MongoInvalidArgumentError('Replacement document must not use atomic operators'); + } + + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList( + BatchType.UPDATE, + makeUpdateStatement(currentOp.selector, replacement, { ...currentOp, multi: false }) + ); + } + + /** Add a delete one operation to the bulk operation */ + deleteOne(): BulkOperationBase { + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList( + BatchType.DELETE, + makeDeleteStatement(currentOp.selector, { ...currentOp, limit: 1 }) + ); + } + + /** Add a delete many operation to the bulk operation */ + delete(): BulkOperationBase { + const currentOp = buildCurrentOp(this.bulkOperation); + return this.bulkOperation.addToOperationsList( + BatchType.DELETE, + makeDeleteStatement(currentOp.selector, { ...currentOp, limit: 0 }) + ); + } + + /** Upsert modifier for update bulk operation, noting that this operation is an upsert. */ + upsert(): this { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + + this.bulkOperation.s.currentOp.upsert = true; + return this; + } + + /** Specifies the collation for the query condition. */ + collation(collation: CollationOptions): this { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + + this.bulkOperation.s.currentOp.collation = collation; + return this; + } + + /** Specifies arrayFilters for UpdateOne or UpdateMany bulk operations. */ + arrayFilters(arrayFilters: Document[]): this { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + + this.bulkOperation.s.currentOp.arrayFilters = arrayFilters; + return this; + } + + /** Specifies hint for the bulk operation. */ + hint(hint: Hint): this { + if (!this.bulkOperation.s.currentOp) { + this.bulkOperation.s.currentOp = {}; + } + + this.bulkOperation.s.currentOp.hint = hint; + return this; + } +} + +/** @internal */ +export interface BulkOperationPrivate { + bulkResult: BulkResult; + currentBatch?: Batch; + currentIndex: number; + // ordered specific + currentBatchSize: number; + currentBatchSizeBytes: number; + // unordered specific + currentInsertBatch?: Batch; + currentUpdateBatch?: Batch; + currentRemoveBatch?: Batch; + batches: Batch[]; + // Write concern + writeConcern?: WriteConcern; + // Max batch size options + maxBsonObjectSize: number; + maxBatchSizeBytes: number; + maxWriteBatchSize: number; + maxKeySize: number; + // Namespace + namespace: MongoDBNamespace; + // Topology + topology: Topology; + // Options + options: BulkWriteOptions; + // BSON options + bsonOptions: BSONSerializeOptions; + // Document used to build a bulk operation + currentOp?: Document; + // Executed + executed: boolean; + // Collection + collection: Collection; + // Fundamental error + err?: AnyError; + // check keys + checkKeys: boolean; + bypassDocumentValidation?: boolean; +} + +/** @public */ +export interface BulkWriteOptions extends CommandOperationOptions { + /** + * Allow driver to bypass schema validation. + * @defaultValue `false` - documents will be validated by default + **/ + bypassDocumentValidation?: boolean; + /** + * If true, when an insert fails, don't execute the remaining writes. + * If false, continue with remaining inserts when one fails. + * @defaultValue `true` - inserts are ordered by default + */ + ordered?: boolean; + /** + * Force server to assign _id values instead of driver. + * @defaultValue `false` - the driver generates `_id` fields by default + **/ + forceServerObjectId?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +const executeCommandsAsync = promisify(executeCommands); + +/** + * TODO(NODE-4063) + * BulkWrites merge complexity is implemented in executeCommands + * This provides a vehicle to treat bulkOperations like any other operation (hence "shim") + * We would like this logic to simply live inside the BulkWriteOperation class + * @internal + */ +export class BulkWriteShimOperation extends AbstractOperation { + bulkOperation: BulkOperationBase; + constructor(bulkOperation: BulkOperationBase, options: BulkWriteOptions) { + super(options); + this.bulkOperation = bulkOperation; + } + + get commandName(): string { + return 'bulkWrite' as const; + } + + execute(_server: Server, session: ClientSession | undefined): Promise { + if (this.options.session == null) { + // An implicit session could have been created by 'executeOperation' + // So if we stick it on finalOptions here, each bulk operation + // will use this same session, it'll be passed in the same way + // an explicit session would be + this.options.session = session; + } + return executeCommandsAsync(this.bulkOperation, this.options); + } +} + +/** @public */ +export abstract class BulkOperationBase { + isOrdered: boolean; + /** @internal */ + s: BulkOperationPrivate; + operationId?: number; + + /** + * Create a new OrderedBulkOperation or UnorderedBulkOperation instance + * @internal + */ + constructor(private collection: Collection, options: BulkWriteOptions, isOrdered: boolean) { + // determine whether bulkOperation is ordered or unordered + this.isOrdered = isOrdered; + + const topology = getTopology(collection); + options = options == null ? {} : options; + // TODO Bring from driver information in hello + // Get the namespace for the write operations + const namespace = collection.s.namespace; + // Used to mark operation as executed + const executed = false; + + // Current item + const currentOp = undefined; + + // Set max byte size + const hello = topology.lastHello(); + + // If we have autoEncryption on, batch-splitting must be done on 2mb chunks, but single documents + // over 2mb are still allowed + const usingAutoEncryption = !!(topology.s.options && topology.s.options.autoEncrypter); + const maxBsonObjectSize = + hello && hello.maxBsonObjectSize ? hello.maxBsonObjectSize : 1024 * 1024 * 16; + const maxBatchSizeBytes = usingAutoEncryption ? 1024 * 1024 * 2 : maxBsonObjectSize; + const maxWriteBatchSize = hello && hello.maxWriteBatchSize ? hello.maxWriteBatchSize : 1000; + + // Calculates the largest possible size of an Array key, represented as a BSON string + // element. This calculation: + // 1 byte for BSON type + // # of bytes = length of (string representation of (maxWriteBatchSize - 1)) + // + 1 bytes for null terminator + const maxKeySize = (maxWriteBatchSize - 1).toString(10).length + 2; + + // Final options for retryable writes + let finalOptions = Object.assign({}, options); + finalOptions = applyRetryableWrites(finalOptions, collection.s.db); + + // Final results + const bulkResult: BulkResult = { + ok: 1, + writeErrors: [], + writeConcernErrors: [], + insertedIds: [], + nInserted: 0, + nUpserted: 0, + nMatched: 0, + nModified: 0, + nRemoved: 0, + upserted: [] + }; + + // Internal state + this.s = { + // Final result + bulkResult, + // Current batch state + currentBatch: undefined, + currentIndex: 0, + // ordered specific + currentBatchSize: 0, + currentBatchSizeBytes: 0, + // unordered specific + currentInsertBatch: undefined, + currentUpdateBatch: undefined, + currentRemoveBatch: undefined, + batches: [], + // Write concern + writeConcern: WriteConcern.fromOptions(options), + // Max batch size options + maxBsonObjectSize, + maxBatchSizeBytes, + maxWriteBatchSize, + maxKeySize, + // Namespace + namespace, + // Topology + topology, + // Options + options: finalOptions, + // BSON options + bsonOptions: resolveBSONOptions(options), + // Current operation + currentOp, + // Executed + executed, + // Collection + collection, + // Fundamental error + err: undefined, + // check keys + checkKeys: typeof options.checkKeys === 'boolean' ? options.checkKeys : false + }; + + // bypass Validation + if (options.bypassDocumentValidation === true) { + this.s.bypassDocumentValidation = true; + } + } + + /** + * Add a single insert document to the bulk operation + * + * @example + * ```ts + * const bulkOp = collection.initializeOrderedBulkOp(); + * + * // Adds three inserts to the bulkOp. + * bulkOp + * .insert({ a: 1 }) + * .insert({ b: 2 }) + * .insert({ c: 3 }); + * await bulkOp.execute(); + * ``` + */ + insert(document: Document): BulkOperationBase { + maybeAddIdToDocuments(this.collection, document, { + forceServerObjectId: this.shouldForceServerObjectId() + }); + + return this.addToOperationsList(BatchType.INSERT, document); + } + + /** + * Builds a find operation for an update/updateOne/delete/deleteOne/replaceOne. + * Returns a builder object used to complete the definition of the operation. + * + * @example + * ```ts + * const bulkOp = collection.initializeOrderedBulkOp(); + * + * // Add an updateOne to the bulkOp + * bulkOp.find({ a: 1 }).updateOne({ $set: { b: 2 } }); + * + * // Add an updateMany to the bulkOp + * bulkOp.find({ c: 3 }).update({ $set: { d: 4 } }); + * + * // Add an upsert + * bulkOp.find({ e: 5 }).upsert().updateOne({ $set: { f: 6 } }); + * + * // Add a deletion + * bulkOp.find({ g: 7 }).deleteOne(); + * + * // Add a multi deletion + * bulkOp.find({ h: 8 }).delete(); + * + * // Add a replaceOne + * bulkOp.find({ i: 9 }).replaceOne({writeConcern: { j: 10 }}); + * + * // Update using a pipeline (requires Mongodb 4.2 or higher) + * bulk.find({ k: 11, y: { $exists: true }, z: { $exists: true } }).updateOne([ + * { $set: { total: { $sum: [ '$y', '$z' ] } } } + * ]); + * + * // All of the ops will now be executed + * await bulkOp.execute(); + * ``` + */ + find(selector: Document): FindOperators { + if (!selector) { + throw new MongoInvalidArgumentError('Bulk find operation must specify a selector'); + } + + // Save a current selector + this.s.currentOp = { + selector: selector + }; + + return new FindOperators(this); + } + + /** Specifies a raw operation to perform in the bulk write. */ + raw(op: AnyBulkWriteOperation): this { + if (op == null || typeof op !== 'object') { + throw new MongoInvalidArgumentError('Operation must be an object with an operation key'); + } + if ('insertOne' in op) { + const forceServerObjectId = this.shouldForceServerObjectId(); + const document = + op.insertOne && op.insertOne.document == null + ? // TODO(NODE-6003): remove support for omitting the `documents` subdocument in bulk inserts + (op.insertOne as Document) + : op.insertOne.document; + + maybeAddIdToDocuments(this.collection, document, { forceServerObjectId }); + + return this.addToOperationsList(BatchType.INSERT, document); + } + + if ('replaceOne' in op || 'updateOne' in op || 'updateMany' in op) { + if ('replaceOne' in op) { + if ('q' in op.replaceOne) { + throw new MongoInvalidArgumentError('Raw operations are not allowed'); + } + const updateStatement = makeUpdateStatement( + op.replaceOne.filter, + op.replaceOne.replacement, + { ...op.replaceOne, multi: false } + ); + if (hasAtomicOperators(updateStatement.u)) { + throw new MongoInvalidArgumentError('Replacement document must not use atomic operators'); + } + return this.addToOperationsList(BatchType.UPDATE, updateStatement); + } + + if ('updateOne' in op) { + if ('q' in op.updateOne) { + throw new MongoInvalidArgumentError('Raw operations are not allowed'); + } + const updateStatement = makeUpdateStatement(op.updateOne.filter, op.updateOne.update, { + ...op.updateOne, + multi: false + }); + if (!hasAtomicOperators(updateStatement.u)) { + throw new MongoInvalidArgumentError('Update document requires atomic operators'); + } + return this.addToOperationsList(BatchType.UPDATE, updateStatement); + } + + if ('updateMany' in op) { + if ('q' in op.updateMany) { + throw new MongoInvalidArgumentError('Raw operations are not allowed'); + } + const updateStatement = makeUpdateStatement(op.updateMany.filter, op.updateMany.update, { + ...op.updateMany, + multi: true + }); + if (!hasAtomicOperators(updateStatement.u)) { + throw new MongoInvalidArgumentError('Update document requires atomic operators'); + } + return this.addToOperationsList(BatchType.UPDATE, updateStatement); + } + } + + if ('deleteOne' in op) { + if ('q' in op.deleteOne) { + throw new MongoInvalidArgumentError('Raw operations are not allowed'); + } + return this.addToOperationsList( + BatchType.DELETE, + makeDeleteStatement(op.deleteOne.filter, { ...op.deleteOne, limit: 1 }) + ); + } + + if ('deleteMany' in op) { + if ('q' in op.deleteMany) { + throw new MongoInvalidArgumentError('Raw operations are not allowed'); + } + return this.addToOperationsList( + BatchType.DELETE, + makeDeleteStatement(op.deleteMany.filter, { ...op.deleteMany, limit: 0 }) + ); + } + + // otherwise an unknown operation was provided + throw new MongoInvalidArgumentError( + 'bulkWrite only supports insertOne, updateOne, updateMany, deleteOne, deleteMany' + ); + } + + get bsonOptions(): BSONSerializeOptions { + return this.s.bsonOptions; + } + + get writeConcern(): WriteConcern | undefined { + return this.s.writeConcern; + } + + get batches(): Batch[] { + const batches = [...this.s.batches]; + if (this.isOrdered) { + if (this.s.currentBatch) batches.push(this.s.currentBatch); + } else { + if (this.s.currentInsertBatch) batches.push(this.s.currentInsertBatch); + if (this.s.currentUpdateBatch) batches.push(this.s.currentUpdateBatch); + if (this.s.currentRemoveBatch) batches.push(this.s.currentRemoveBatch); + } + return batches; + } + + async execute(options: BulkWriteOptions = {}): Promise { + if (this.s.executed) { + throw new MongoBatchReExecutionError(); + } + + const writeConcern = WriteConcern.fromOptions(options); + if (writeConcern) { + this.s.writeConcern = writeConcern; + } + + // If we have current batch + if (this.isOrdered) { + if (this.s.currentBatch) this.s.batches.push(this.s.currentBatch); + } else { + if (this.s.currentInsertBatch) this.s.batches.push(this.s.currentInsertBatch); + if (this.s.currentUpdateBatch) this.s.batches.push(this.s.currentUpdateBatch); + if (this.s.currentRemoveBatch) this.s.batches.push(this.s.currentRemoveBatch); + } + // If we have no operations in the bulk raise an error + if (this.s.batches.length === 0) { + throw new MongoInvalidArgumentError('Invalid BulkOperation, Batch cannot be empty'); + } + + this.s.executed = true; + const finalOptions = { ...this.s.options, ...options }; + const operation = new BulkWriteShimOperation(this, finalOptions); + + return await executeOperation(this.s.collection.client, operation); + } + + /** + * Handles the write error before executing commands + * @internal + */ + handleWriteError(callback: Callback, writeResult: BulkWriteResult): boolean { + if (this.s.bulkResult.writeErrors.length > 0) { + const msg = this.s.bulkResult.writeErrors[0].errmsg + ? this.s.bulkResult.writeErrors[0].errmsg + : 'write operation failed'; + + callback( + new MongoBulkWriteError( + { + message: msg, + code: this.s.bulkResult.writeErrors[0].code, + writeErrors: this.s.bulkResult.writeErrors + }, + writeResult + ) + ); + + return true; + } + + const writeConcernError = writeResult.getWriteConcernError(); + if (writeConcernError) { + callback(new MongoBulkWriteError(writeConcernError, writeResult)); + return true; + } + + return false; + } + + abstract addToOperationsList( + batchType: BatchType, + document: Document | UpdateStatement | DeleteStatement + ): this; + + private shouldForceServerObjectId(): boolean { + return ( + this.s.options.forceServerObjectId === true || + this.s.collection.s.db.options?.forceServerObjectId === true + ); + } +} + +Object.defineProperty(BulkOperationBase.prototype, 'length', { + enumerable: true, + get() { + return this.s.currentIndex; + } +}); + +function isInsertBatch(batch: Batch): boolean { + return batch.batchType === BatchType.INSERT; +} + +function isUpdateBatch(batch: Batch): batch is Batch { + return batch.batchType === BatchType.UPDATE; +} + +function isDeleteBatch(batch: Batch): batch is Batch { + return batch.batchType === BatchType.DELETE; +} + +function buildCurrentOp(bulkOp: BulkOperationBase): Document { + let { currentOp } = bulkOp.s; + bulkOp.s.currentOp = undefined; + if (!currentOp) currentOp = {}; + return currentOp; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/ordered.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/ordered.ts new file mode 100644 index 000000000..2a9e9ece2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/ordered.ts @@ -0,0 +1,83 @@ +import type { Document } from '../bson'; +import * as BSON from '../bson'; +import type { Collection } from '../collection'; +import { MongoInvalidArgumentError } from '../error'; +import type { DeleteStatement } from '../operations/delete'; +import type { UpdateStatement } from '../operations/update'; +import { Batch, BatchType, BulkOperationBase, type BulkWriteOptions } from './common'; + +/** @public */ +export class OrderedBulkOperation extends BulkOperationBase { + /** @internal */ + constructor(collection: Collection, options: BulkWriteOptions) { + super(collection, options, true); + } + + addToOperationsList( + batchType: BatchType, + document: Document | UpdateStatement | DeleteStatement + ): this { + // Get the bsonSize + const bsonSize = BSON.calculateObjectSize(document, { + checkKeys: false, + // Since we don't know what the user selected for BSON options here, + // err on the safe side, and check the size with ignoreUndefined: false. + ignoreUndefined: false + } as any); + + // Throw error if the doc is bigger than the max BSON size + if (bsonSize >= this.s.maxBsonObjectSize) + // TODO(NODE-3483): Change this to MongoBSONError + throw new MongoInvalidArgumentError( + `Document is larger than the maximum size ${this.s.maxBsonObjectSize}` + ); + + // Create a new batch object if we don't have a current one + if (this.s.currentBatch == null) { + this.s.currentBatch = new Batch(batchType, this.s.currentIndex); + } + + const maxKeySize = this.s.maxKeySize; + + // Check if we need to create a new batch + if ( + // New batch if we exceed the max batch op size + this.s.currentBatchSize + 1 >= this.s.maxWriteBatchSize || + // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc, + // since we can't sent an empty batch + (this.s.currentBatchSize > 0 && + this.s.currentBatchSizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) || + // New batch if the new op does not have the same op type as the current batch + this.s.currentBatch.batchType !== batchType + ) { + // Save the batch to the execution stack + this.s.batches.push(this.s.currentBatch); + + // Create a new batch + this.s.currentBatch = new Batch(batchType, this.s.currentIndex); + + // Reset the current size trackers + this.s.currentBatchSize = 0; + this.s.currentBatchSizeBytes = 0; + } + + if (batchType === BatchType.INSERT) { + this.s.bulkResult.insertedIds.push({ + index: this.s.currentIndex, + _id: (document as Document)._id + }); + } + + // We have an array of documents + if (Array.isArray(document)) { + throw new MongoInvalidArgumentError('Operation passed in cannot be an Array'); + } + + this.s.currentBatch.originalIndexes.push(this.s.currentIndex); + this.s.currentBatch.operations.push(document); + this.s.currentBatchSize += 1; + this.s.currentBatchSizeBytes += maxKeySize + bsonSize; + this.s.currentIndex += 1; + return this; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/unordered.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/unordered.ts new file mode 100644 index 000000000..3b7e7f2f3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/bulk/unordered.ts @@ -0,0 +1,116 @@ +import type { Document } from '../bson'; +import * as BSON from '../bson'; +import type { Collection } from '../collection'; +import { MongoInvalidArgumentError } from '../error'; +import type { DeleteStatement } from '../operations/delete'; +import type { UpdateStatement } from '../operations/update'; +import { type Callback } from '../utils'; +import { + Batch, + BatchType, + BulkOperationBase, + type BulkWriteOptions, + type BulkWriteResult +} from './common'; + +/** @public */ +export class UnorderedBulkOperation extends BulkOperationBase { + /** @internal */ + constructor(collection: Collection, options: BulkWriteOptions) { + super(collection, options, false); + } + + override handleWriteError(callback: Callback, writeResult: BulkWriteResult): boolean { + if (this.s.batches.length) { + return false; + } + + return super.handleWriteError(callback, writeResult); + } + + addToOperationsList( + batchType: BatchType, + document: Document | UpdateStatement | DeleteStatement + ): this { + // Get the bsonSize + const bsonSize = BSON.calculateObjectSize(document, { + checkKeys: false, + + // Since we don't know what the user selected for BSON options here, + // err on the safe side, and check the size with ignoreUndefined: false. + ignoreUndefined: false + } as any); + + // Throw error if the doc is bigger than the max BSON size + if (bsonSize >= this.s.maxBsonObjectSize) { + // TODO(NODE-3483): Change this to MongoBSONError + throw new MongoInvalidArgumentError( + `Document is larger than the maximum size ${this.s.maxBsonObjectSize}` + ); + } + + // Holds the current batch + this.s.currentBatch = undefined; + // Get the right type of batch + if (batchType === BatchType.INSERT) { + this.s.currentBatch = this.s.currentInsertBatch; + } else if (batchType === BatchType.UPDATE) { + this.s.currentBatch = this.s.currentUpdateBatch; + } else if (batchType === BatchType.DELETE) { + this.s.currentBatch = this.s.currentRemoveBatch; + } + + const maxKeySize = this.s.maxKeySize; + + // Create a new batch object if we don't have a current one + if (this.s.currentBatch == null) { + this.s.currentBatch = new Batch(batchType, this.s.currentIndex); + } + + // Check if we need to create a new batch + if ( + // New batch if we exceed the max batch op size + this.s.currentBatch.size + 1 >= this.s.maxWriteBatchSize || + // New batch if we exceed the maxBatchSizeBytes. Only matters if batch already has a doc, + // since we can't sent an empty batch + (this.s.currentBatch.size > 0 && + this.s.currentBatch.sizeBytes + maxKeySize + bsonSize >= this.s.maxBatchSizeBytes) || + // New batch if the new op does not have the same op type as the current batch + this.s.currentBatch.batchType !== batchType + ) { + // Save the batch to the execution stack + this.s.batches.push(this.s.currentBatch); + + // Create a new batch + this.s.currentBatch = new Batch(batchType, this.s.currentIndex); + } + + // We have an array of documents + if (Array.isArray(document)) { + throw new MongoInvalidArgumentError('Operation passed in cannot be an Array'); + } + + this.s.currentBatch.operations.push(document); + this.s.currentBatch.originalIndexes.push(this.s.currentIndex); + this.s.currentIndex = this.s.currentIndex + 1; + + // Save back the current Batch to the right type + if (batchType === BatchType.INSERT) { + this.s.currentInsertBatch = this.s.currentBatch; + this.s.bulkResult.insertedIds.push({ + index: this.s.bulkResult.insertedIds.length, + _id: (document as Document)._id + }); + } else if (batchType === BatchType.UPDATE) { + this.s.currentUpdateBatch = this.s.currentBatch; + } else if (batchType === BatchType.DELETE) { + this.s.currentRemoveBatch = this.s.currentBatch; + } + + // Update current batch size + this.s.currentBatch.size += 1; + this.s.currentBatch.sizeBytes += maxKeySize + bsonSize; + + return this; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/change_stream.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/change_stream.ts new file mode 100644 index 000000000..4e46d6c01 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/change_stream.ts @@ -0,0 +1,988 @@ +import type { Readable } from 'stream'; + +import type { Binary, Document, Timestamp } from './bson'; +import { Collection } from './collection'; +import { CHANGE, CLOSE, END, ERROR, INIT, MORE, RESPONSE, RESUME_TOKEN_CHANGED } from './constants'; +import type { AbstractCursorEvents, CursorStreamOptions } from './cursor/abstract_cursor'; +import { ChangeStreamCursor, type ChangeStreamCursorOptions } from './cursor/change_stream_cursor'; +import { Db } from './db'; +import { + type AnyError, + isResumableError, + MongoAPIError, + MongoChangeStreamError, + MongoRuntimeError +} from './error'; +import { MongoClient } from './mongo_client'; +import { type InferIdType, TypedEventEmitter } from './mongo_types'; +import type { AggregateOptions } from './operations/aggregate'; +import type { CollationOptions, OperationParent } from './operations/command'; +import type { ReadPreference } from './read_preference'; +import type { ServerSessionId } from './sessions'; +import { filterOptions, getTopology, type MongoDBNamespace, squashError } from './utils'; + +/** @internal */ +const kCursorStream = Symbol('cursorStream'); +/** @internal */ +const kClosed = Symbol('closed'); +/** @internal */ +const kMode = Symbol('mode'); + +const CHANGE_STREAM_OPTIONS = [ + 'resumeAfter', + 'startAfter', + 'startAtOperationTime', + 'fullDocument', + 'fullDocumentBeforeChange', + 'showExpandedEvents' +] as const; + +const CHANGE_DOMAIN_TYPES = { + COLLECTION: Symbol('Collection'), + DATABASE: Symbol('Database'), + CLUSTER: Symbol('Cluster') +}; + +const CHANGE_STREAM_EVENTS = [RESUME_TOKEN_CHANGED, END, CLOSE]; + +const NO_RESUME_TOKEN_ERROR = + 'A change stream document has been received that lacks a resume token (_id).'; +const CHANGESTREAM_CLOSED_ERROR = 'ChangeStream is closed'; + +/** + * @public + * @deprecated Please use the ChangeStreamCursorOptions type instead. + */ +export interface ResumeOptions { + startAtOperationTime?: Timestamp; + batchSize?: number; + maxAwaitTimeMS?: number; + collation?: CollationOptions; + readPreference?: ReadPreference; + resumeAfter?: ResumeToken; + startAfter?: ResumeToken; + fullDocument?: string; +} + +/** + * Represents the logical starting point for a new ChangeStream or resuming a ChangeStream on the server. + * @see https://www.mongodb.com/docs/manual/changeStreams/#std-label-change-stream-resume + * @public + */ +export type ResumeToken = unknown; + +/** + * Represents a specific point in time on a server. Can be retrieved by using `db.command()` + * @public + * @see https://www.mongodb.com/docs/manual/reference/method/db.runCommand/#response + */ +export type OperationTime = Timestamp; + +/** + * Options that can be passed to a ChangeStream. Note that startAfter, resumeAfter, and startAtOperationTime are all mutually exclusive, and the server will error if more than one is specified. + * @public + */ +export interface ChangeStreamOptions extends Omit { + /** + * Allowed values: 'updateLookup', 'whenAvailable', 'required'. + * + * When set to 'updateLookup', the change notification for partial updates + * will include both a delta describing the changes to the document as well + * as a copy of the entire document that was changed from some time after + * the change occurred. + * + * When set to 'whenAvailable', configures the change stream to return the + * post-image of the modified document for replace and update change events + * if the post-image for this event is available. + * + * When set to 'required', the same behavior as 'whenAvailable' except that + * an error is raised if the post-image is not available. + */ + fullDocument?: string; + + /** + * Allowed values: 'whenAvailable', 'required', 'off'. + * + * The default is to not send a value, which is equivalent to 'off'. + * + * When set to 'whenAvailable', configures the change stream to return the + * pre-image of the modified document for replace, update, and delete change + * events if it is available. + * + * When set to 'required', the same behavior as 'whenAvailable' except that + * an error is raised if the pre-image is not available. + */ + fullDocumentBeforeChange?: string; + /** The maximum amount of time for the server to wait on new documents to satisfy a change stream query. */ + maxAwaitTimeMS?: number; + /** + * Allows you to start a changeStream after a specified event. + * @see https://www.mongodb.com/docs/manual/changeStreams/#resumeafter-for-change-streams + */ + resumeAfter?: ResumeToken; + /** + * Similar to resumeAfter, but will allow you to start after an invalidated event. + * @see https://www.mongodb.com/docs/manual/changeStreams/#startafter-for-change-streams + */ + startAfter?: ResumeToken; + /** Will start the changeStream after the specified operationTime. */ + startAtOperationTime?: OperationTime; + /** + * The number of documents to return per batch. + * @see https://www.mongodb.com/docs/manual/reference/command/aggregate + */ + batchSize?: number; + + /** + * When enabled, configures the change stream to include extra change events. + * + * - createIndexes + * - dropIndexes + * - modify + * - create + * - shardCollection + * - reshardCollection + * - refineCollectionShardKey + */ + showExpandedEvents?: boolean; +} + +/** @public */ +export interface ChangeStreamNameSpace { + db: string; + coll: string; +} + +/** @public */ +export interface ChangeStreamDocumentKey { + /** + * For unsharded collections this contains a single field `_id`. + * For sharded collections, this will contain all the components of the shard key + */ + documentKey: { _id: InferIdType; [shardKey: string]: any }; +} + +/** @public */ +export interface ChangeStreamSplitEvent { + /** Which fragment of the change this is. */ + fragment: number; + /** The total number of fragments. */ + of: number; +} + +/** @public */ +export interface ChangeStreamDocumentCommon { + /** + * The id functions as an opaque token for use when resuming an interrupted + * change stream. + */ + _id: ResumeToken; + /** + * The timestamp from the oplog entry associated with the event. + * For events that happened as part of a multi-document transaction, the associated change stream + * notifications will have the same clusterTime value, namely the time when the transaction was committed. + * On a sharded cluster, events that occur on different shards can have the same clusterTime but be + * associated with different transactions or even not be associated with any transaction. + * To identify events for a single transaction, you can use the combination of lsid and txnNumber in the change stream event document. + */ + clusterTime?: Timestamp; + + /** + * The transaction number. + * Only present if the operation is part of a multi-document transaction. + * + * **NOTE:** txnNumber can be a Long if promoteLongs is set to false + */ + txnNumber?: number; + + /** + * The identifier for the session associated with the transaction. + * Only present if the operation is part of a multi-document transaction. + */ + lsid?: ServerSessionId; + + /** + * When the change stream's backing aggregation pipeline contains the $changeStreamSplitLargeEvent + * stage, events larger than 16MB will be split into multiple events and contain the + * following information about which fragment the current event is. + */ + splitEvent?: ChangeStreamSplitEvent; +} + +/** @public */ +export interface ChangeStreamDocumentCollectionUUID { + /** + * The UUID (Binary subtype 4) of the collection that the operation was performed on. + * + * Only present when the `showExpandedEvents` flag is enabled. + * + * **NOTE:** collectionUUID will be converted to a NodeJS Buffer if the promoteBuffers + * flag is enabled. + * + * @sinceServerVersion 6.1.0 + */ + collectionUUID: Binary; +} + +/** @public */ +export interface ChangeStreamDocumentOperationDescription { + /** + * An description of the operation. + * + * Only present when the `showExpandedEvents` flag is enabled. + * + * @sinceServerVersion 6.1.0 + */ + operationDescription?: Document; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#insert-event + */ +export interface ChangeStreamInsertDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentKey, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'insert'; + /** This key will contain the document being inserted */ + fullDocument: TSchema; + /** Namespace the insert event occurred on */ + ns: ChangeStreamNameSpace; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#update-event + */ +export interface ChangeStreamUpdateDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentKey, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'update'; + /** + * This is only set if `fullDocument` is set to `'updateLookup'` + * Contains the point-in-time post-image of the modified document if the + * post-image is available and either 'required' or 'whenAvailable' was + * specified for the 'fullDocument' option when creating the change stream. + */ + fullDocument?: TSchema; + /** Contains a description of updated and removed fields in this operation */ + updateDescription: UpdateDescription; + /** Namespace the update event occurred on */ + ns: ChangeStreamNameSpace; + /** + * Contains the pre-image of the modified or deleted document if the + * pre-image is available for the change event and either 'required' or + * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option + * when creating the change stream. If 'whenAvailable' was specified but the + * pre-image is unavailable, this will be explicitly set to null. + */ + fullDocumentBeforeChange?: TSchema; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#replace-event + */ +export interface ChangeStreamReplaceDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentKey { + /** Describes the type of operation represented in this change notification */ + operationType: 'replace'; + /** The fullDocument of a replace event represents the document after the insert of the replacement document */ + fullDocument: TSchema; + /** Namespace the replace event occurred on */ + ns: ChangeStreamNameSpace; + /** + * Contains the pre-image of the modified or deleted document if the + * pre-image is available for the change event and either 'required' or + * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option + * when creating the change stream. If 'whenAvailable' was specified but the + * pre-image is unavailable, this will be explicitly set to null. + */ + fullDocumentBeforeChange?: TSchema; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#delete-event + */ +export interface ChangeStreamDeleteDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentKey, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'delete'; + /** Namespace the delete event occurred on */ + ns: ChangeStreamNameSpace; + /** + * Contains the pre-image of the modified or deleted document if the + * pre-image is available for the change event and either 'required' or + * 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option + * when creating the change stream. If 'whenAvailable' was specified but the + * pre-image is unavailable, this will be explicitly set to null. + */ + fullDocumentBeforeChange?: TSchema; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#drop-event + */ +export interface ChangeStreamDropDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'drop'; + /** Namespace the drop event occurred on */ + ns: ChangeStreamNameSpace; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#rename-event + */ +export interface ChangeStreamRenameDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'rename'; + /** The new name for the `ns.coll` collection */ + to: { db: string; coll: string }; + /** The "from" namespace that the rename occurred on */ + ns: ChangeStreamNameSpace; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#dropdatabase-event + */ +export interface ChangeStreamDropDatabaseDocument extends ChangeStreamDocumentCommon { + /** Describes the type of operation represented in this change notification */ + operationType: 'dropDatabase'; + /** The database dropped */ + ns: { db: string }; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/#invalidate-event + */ +export interface ChangeStreamInvalidateDocument extends ChangeStreamDocumentCommon { + /** Describes the type of operation represented in this change notification */ + operationType: 'invalidate'; +} + +/** + * Only present when the `showExpandedEvents` flag is enabled. + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/createIndexes/#mongodb-data-createIndexes + */ +export interface ChangeStreamCreateIndexDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID, + ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'createIndexes'; +} + +/** + * Only present when the `showExpandedEvents` flag is enabled. + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/dropIndexes/#mongodb-data-dropIndexes + */ +export interface ChangeStreamDropIndexDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID, + ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'dropIndexes'; +} + +/** + * Only present when the `showExpandedEvents` flag is enabled. + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/modify/#mongodb-data-modify + */ +export interface ChangeStreamCollModDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'modify'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/create/#mongodb-data-create + */ +export interface ChangeStreamCreateDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID { + /** Describes the type of operation represented in this change notification */ + operationType: 'create'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/shardCollection/#mongodb-data-shardCollection + */ +export interface ChangeStreamShardCollectionDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID, + ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'shardCollection'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/reshardCollection/#mongodb-data-reshardCollection + */ +export interface ChangeStreamReshardCollectionDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID, + ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'reshardCollection'; +} + +/** + * @public + * @see https://www.mongodb.com/docs/manual/reference/change-events/refineCollectionShardKey/#mongodb-data-refineCollectionShardKey + */ +export interface ChangeStreamRefineCollectionShardKeyDocument + extends ChangeStreamDocumentCommon, + ChangeStreamDocumentCollectionUUID, + ChangeStreamDocumentOperationDescription { + /** Describes the type of operation represented in this change notification */ + operationType: 'refineCollectionShardKey'; +} + +/** @public */ +export type ChangeStreamDocument = + | ChangeStreamInsertDocument + | ChangeStreamUpdateDocument + | ChangeStreamReplaceDocument + | ChangeStreamDeleteDocument + | ChangeStreamDropDocument + | ChangeStreamRenameDocument + | ChangeStreamDropDatabaseDocument + | ChangeStreamInvalidateDocument + | ChangeStreamCreateIndexDocument + | ChangeStreamCreateDocument + | ChangeStreamCollModDocument + | ChangeStreamDropIndexDocument + | ChangeStreamShardCollectionDocument + | ChangeStreamReshardCollectionDocument + | ChangeStreamRefineCollectionShardKeyDocument; + +/** @public */ +export interface UpdateDescription { + /** + * A document containing key:value pairs of names of the fields that were + * changed, and the new value for those fields. + */ + updatedFields?: Partial; + + /** + * An array of field names that were removed from the document. + */ + removedFields?: string[]; + + /** + * An array of documents which record array truncations performed with pipeline-based updates using one or more of the following stages: + * - $addFields + * - $set + * - $replaceRoot + * - $replaceWith + */ + truncatedArrays?: Array<{ + /** The name of the truncated field. */ + field: string; + /** The number of elements in the truncated array. */ + newSize: number; + }>; + + /** + * A document containing additional information about any ambiguous update paths from the update event. The document + * maps the full ambiguous update path to an array containing the actual resolved components of the path. For example, + * given a document shaped like `{ a: { '0': 0 } }`, and an update of `{ $inc: 'a.0' }`, disambiguated paths would look like + * the following: + * + * ``` + * { + * 'a.0': ['a', '0'] + * } + * ``` + * + * This field is only present when there are ambiguous paths that are updated as a part of the update event and `showExpandedEvents` + * is enabled for the change stream. + * @sinceServerVersion 6.1.0 + */ + disambiguatedPaths?: Document; +} + +/** @public */ +export type ChangeStreamEvents< + TSchema extends Document = Document, + TChange extends Document = ChangeStreamDocument +> = { + resumeTokenChanged(token: ResumeToken): void; + init(response: any): void; + more(response?: any): void; + response(): void; + end(): void; + error(error: Error): void; + change(change: TChange): void; +} & AbstractCursorEvents; + +/** + * Creates a new Change Stream instance. Normally created using {@link Collection#watch|Collection.watch()}. + * @public + */ +export class ChangeStream< + TSchema extends Document = Document, + TChange extends Document = ChangeStreamDocument +> extends TypedEventEmitter> { + pipeline: Document[]; + /** + * @remarks WriteConcern can still be present on the options because + * we inherit options from the client/db/collection. The + * key must be present on the options in order to delete it. + * This allows typescript to delete the key but will + * not allow a writeConcern to be assigned as a property on options. + */ + options: ChangeStreamOptions & { writeConcern?: never }; + parent: MongoClient | Db | Collection; + namespace: MongoDBNamespace; + type: symbol; + /** @internal */ + cursor: ChangeStreamCursor; + streamOptions?: CursorStreamOptions; + /** @internal */ + [kCursorStream]?: Readable & AsyncIterable; + /** @internal */ + [kClosed]: boolean; + /** @internal */ + [kMode]: false | 'iterator' | 'emitter'; + + /** @event */ + static readonly RESPONSE = RESPONSE; + /** @event */ + static readonly MORE = MORE; + /** @event */ + static readonly INIT = INIT; + /** @event */ + static readonly CLOSE = CLOSE; + /** + * Fired for each new matching change in the specified namespace. Attaching a `change` + * event listener to a Change Stream will switch the stream into flowing mode. Data will + * then be passed as soon as it is available. + * @event + */ + static readonly CHANGE = CHANGE; + /** @event */ + static readonly END = END; + /** @event */ + static readonly ERROR = ERROR; + /** + * Emitted each time the change stream stores a new resume token. + * @event + */ + static readonly RESUME_TOKEN_CHANGED = RESUME_TOKEN_CHANGED; + + /** + * @internal + * + * @param parent - The parent object that created this change stream + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents + */ + constructor( + parent: OperationParent, + pipeline: Document[] = [], + options: ChangeStreamOptions = {} + ) { + super(); + + this.pipeline = pipeline; + this.options = { ...options }; + delete this.options.writeConcern; + + if (parent instanceof Collection) { + this.type = CHANGE_DOMAIN_TYPES.COLLECTION; + } else if (parent instanceof Db) { + this.type = CHANGE_DOMAIN_TYPES.DATABASE; + } else if (parent instanceof MongoClient) { + this.type = CHANGE_DOMAIN_TYPES.CLUSTER; + } else { + throw new MongoChangeStreamError( + 'Parent provided to ChangeStream constructor must be an instance of Collection, Db, or MongoClient' + ); + } + + this.parent = parent; + this.namespace = parent.s.namespace; + if (!this.options.readPreference && parent.readPreference) { + this.options.readPreference = parent.readPreference; + } + + // Create contained Change Stream cursor + this.cursor = this._createChangeStreamCursor(options); + + this[kClosed] = false; + this[kMode] = false; + + // Listen for any `change` listeners being added to ChangeStream + this.on('newListener', eventName => { + if (eventName === 'change' && this.cursor && this.listenerCount('change') === 0) { + this._streamEvents(this.cursor); + } + }); + + this.on('removeListener', eventName => { + if (eventName === 'change' && this.listenerCount('change') === 0 && this.cursor) { + this[kCursorStream]?.removeAllListeners('data'); + } + }); + } + + /** @internal */ + get cursorStream(): (Readable & AsyncIterable) | undefined { + return this[kCursorStream]; + } + + /** The cached resume token that is used to resume after the most recently returned change. */ + get resumeToken(): ResumeToken { + return this.cursor?.resumeToken; + } + + /** Check if there is any document still available in the Change Stream */ + async hasNext(): Promise { + this._setIsIterator(); + // Change streams must resume indefinitely while each resume event succeeds. + // This loop continues until either a change event is received or until a resume attempt + // fails. + // eslint-disable-next-line no-constant-condition + while (true) { + try { + const hasNext = await this.cursor.hasNext(); + return hasNext; + } catch (error) { + try { + await this._processErrorIteratorMode(error); + } catch (error) { + try { + await this.close(); + } catch (error) { + squashError(error); + } + throw error; + } + } + } + } + + /** Get the next available document from the Change Stream. */ + async next(): Promise { + this._setIsIterator(); + // Change streams must resume indefinitely while each resume event succeeds. + // This loop continues until either a change event is received or until a resume attempt + // fails. + // eslint-disable-next-line no-constant-condition + while (true) { + try { + const change = await this.cursor.next(); + const processedChange = this._processChange(change ?? null); + return processedChange; + } catch (error) { + try { + await this._processErrorIteratorMode(error); + } catch (error) { + try { + await this.close(); + } catch (error) { + squashError(error); + } + throw error; + } + } + } + } + + /** + * Try to get the next available document from the Change Stream's cursor or `null` if an empty batch is returned + */ + async tryNext(): Promise { + this._setIsIterator(); + // Change streams must resume indefinitely while each resume event succeeds. + // This loop continues until either a change event is received or until a resume attempt + // fails. + // eslint-disable-next-line no-constant-condition + while (true) { + try { + const change = await this.cursor.tryNext(); + return change ?? null; + } catch (error) { + try { + await this._processErrorIteratorMode(error); + } catch (error) { + try { + await this.close(); + } catch (error) { + squashError(error); + } + throw error; + } + } + } + } + + async *[Symbol.asyncIterator](): AsyncGenerator { + if (this.closed) { + return; + } + + try { + // Change streams run indefinitely as long as errors are resumable + // So the only loop breaking condition is if `next()` throws + while (true) { + yield await this.next(); + } + } finally { + try { + await this.close(); + } catch (error) { + squashError(error); + } + } + } + + /** Is the cursor closed */ + get closed(): boolean { + return this[kClosed] || this.cursor.closed; + } + + /** Close the Change Stream */ + async close(): Promise { + this[kClosed] = true; + + const cursor = this.cursor; + try { + await cursor.close(); + } finally { + this._endStream(); + } + } + + /** + * Return a modified Readable stream including a possible transform method. + * + * NOTE: When using a Stream to process change stream events, the stream will + * NOT automatically resume in the case a resumable error is encountered. + * + * @throws MongoChangeStreamError if the underlying cursor or the change stream is closed + */ + stream(options?: CursorStreamOptions): Readable & AsyncIterable { + if (this.closed) { + throw new MongoChangeStreamError(CHANGESTREAM_CLOSED_ERROR); + } + + this.streamOptions = options; + return this.cursor.stream(options); + } + + /** @internal */ + private _setIsEmitter(): void { + if (this[kMode] === 'iterator') { + // TODO(NODE-3485): Replace with MongoChangeStreamModeError + throw new MongoAPIError( + 'ChangeStream cannot be used as an EventEmitter after being used as an iterator' + ); + } + this[kMode] = 'emitter'; + } + + /** @internal */ + private _setIsIterator(): void { + if (this[kMode] === 'emitter') { + // TODO(NODE-3485): Replace with MongoChangeStreamModeError + throw new MongoAPIError( + 'ChangeStream cannot be used as an iterator after being used as an EventEmitter' + ); + } + this[kMode] = 'iterator'; + } + + /** + * Create a new change stream cursor based on self's configuration + * @internal + */ + private _createChangeStreamCursor( + options: ChangeStreamOptions | ChangeStreamCursorOptions + ): ChangeStreamCursor { + const changeStreamStageOptions = filterOptions(options, CHANGE_STREAM_OPTIONS); + if (this.type === CHANGE_DOMAIN_TYPES.CLUSTER) { + changeStreamStageOptions.allChangesForCluster = true; + } + const pipeline = [{ $changeStream: changeStreamStageOptions }, ...this.pipeline]; + + const client: MongoClient | null = + this.type === CHANGE_DOMAIN_TYPES.CLUSTER + ? (this.parent as MongoClient) + : this.type === CHANGE_DOMAIN_TYPES.DATABASE + ? (this.parent as Db).client + : this.type === CHANGE_DOMAIN_TYPES.COLLECTION + ? (this.parent as Collection).client + : null; + + if (client == null) { + // This should never happen because of the assertion in the constructor + throw new MongoRuntimeError( + `Changestream type should only be one of cluster, database, collection. Found ${this.type.toString()}` + ); + } + + const changeStreamCursor = new ChangeStreamCursor( + client, + this.namespace, + pipeline, + options + ); + + for (const event of CHANGE_STREAM_EVENTS) { + changeStreamCursor.on(event, e => this.emit(event, e)); + } + + if (this.listenerCount(ChangeStream.CHANGE) > 0) { + this._streamEvents(changeStreamCursor); + } + + return changeStreamCursor; + } + + /** @internal */ + private _closeEmitterModeWithError(error: AnyError): void { + this.emit(ChangeStream.ERROR, error); + + // eslint-disable-next-line github/no-then + this.close().then(undefined, squashError); + } + + /** @internal */ + private _streamEvents(cursor: ChangeStreamCursor): void { + this._setIsEmitter(); + const stream = this[kCursorStream] ?? cursor.stream(); + this[kCursorStream] = stream; + stream.on('data', change => { + try { + const processedChange = this._processChange(change); + this.emit(ChangeStream.CHANGE, processedChange); + } catch (error) { + this.emit(ChangeStream.ERROR, error); + } + }); + stream.on('error', error => this._processErrorStreamMode(error)); + } + + /** @internal */ + private _endStream(): void { + const cursorStream = this[kCursorStream]; + if (cursorStream) { + ['data', 'close', 'end', 'error'].forEach(event => cursorStream.removeAllListeners(event)); + cursorStream.destroy(); + } + + this[kCursorStream] = undefined; + } + + /** @internal */ + private _processChange(change: TChange | null): TChange { + if (this[kClosed]) { + // TODO(NODE-3485): Replace with MongoChangeStreamClosedError + throw new MongoAPIError(CHANGESTREAM_CLOSED_ERROR); + } + + // a null change means the cursor has been notified, implicitly closing the change stream + if (change == null) { + // TODO(NODE-3485): Replace with MongoChangeStreamClosedError + throw new MongoRuntimeError(CHANGESTREAM_CLOSED_ERROR); + } + + if (change && !change._id) { + throw new MongoChangeStreamError(NO_RESUME_TOKEN_ERROR); + } + + // cache the resume token + this.cursor.cacheResumeToken(change._id); + + // wipe the startAtOperationTime if there was one so that there won't be a conflict + // between resumeToken and startAtOperationTime if we need to reconnect the cursor + this.options.startAtOperationTime = undefined; + + return change; + } + + /** @internal */ + private _processErrorStreamMode(changeStreamError: AnyError) { + // If the change stream has been closed explicitly, do not process error. + if (this[kClosed]) return; + + if (isResumableError(changeStreamError, this.cursor.maxWireVersion)) { + this._endStream(); + // eslint-disable-next-line github/no-then + this.cursor.close().then(undefined, squashError); + + const topology = getTopology(this.parent); + topology + .selectServer(this.cursor.readPreference, { + operationName: 'reconnect topology in change stream' + }) + // eslint-disable-next-line github/no-then + .then( + () => { + this.cursor = this._createChangeStreamCursor(this.cursor.resumeOptions); + }, + () => this._closeEmitterModeWithError(changeStreamError) + ); + } else { + this._closeEmitterModeWithError(changeStreamError); + } + } + + /** @internal */ + private async _processErrorIteratorMode(changeStreamError: AnyError) { + if (this[kClosed]) { + // TODO(NODE-3485): Replace with MongoChangeStreamClosedError + throw new MongoAPIError(CHANGESTREAM_CLOSED_ERROR); + } + + if (!isResumableError(changeStreamError, this.cursor.maxWireVersion)) { + try { + await this.close(); + } catch (error) { + squashError(error); + } + throw changeStreamError; + } + + try { + await this.cursor.close(); + } catch (error) { + squashError(error); + } + const topology = getTopology(this.parent); + try { + await topology.selectServer(this.cursor.readPreference, { + operationName: 'reconnect topology in change stream' + }); + this.cursor = this._createChangeStreamCursor(this.cursor.resumeOptions); + } catch { + // if the topology can't reconnect, close the stream + await this.close(); + throw changeStreamError; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/auto_encrypter.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/auto_encrypter.ts new file mode 100644 index 000000000..e6334dc57 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/auto_encrypter.ts @@ -0,0 +1,570 @@ +import { + type MongoCrypt, + type MongoCryptConstructor, + type MongoCryptOptions +} from 'mongodb-client-encryption'; + +import { deserialize, type Document, serialize } from '../bson'; +import { type CommandOptions, type ProxyOptions } from '../cmap/connection'; +import { getMongoDBClientEncryption } from '../deps'; +import { MongoRuntimeError } from '../error'; +import { MongoClient, type MongoClientOptions } from '../mongo_client'; +import { MongoDBCollectionNamespace } from '../utils'; +import * as cryptoCallbacks from './crypto_callbacks'; +import { MongoCryptInvalidArgumentError } from './errors'; +import { MongocryptdManager } from './mongocryptd_manager'; +import { type KMSProviders, refreshKMSCredentials } from './providers'; +import { type CSFLEKMSTlsOptions, StateMachine } from './state_machine'; + +/** @public */ +export interface AutoEncryptionOptions { + /** @internal client for metadata lookups */ + metadataClient?: MongoClient; + /** A `MongoClient` used to fetch keys from a key vault */ + keyVaultClient?: MongoClient; + /** The namespace where keys are stored in the key vault */ + keyVaultNamespace?: string; + /** Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. */ + kmsProviders?: { + /** Configuration options for using 'aws' as your KMS provider */ + aws?: + | { + /** The access key used for the AWS KMS provider */ + accessKeyId: string; + /** The secret access key used for the AWS KMS provider */ + secretAccessKey: string; + /** + * An optional AWS session token that will be used as the + * X-Amz-Security-Token header for AWS requests. + */ + sessionToken?: string; + } + | Record; + /** Configuration options for using 'local' as your KMS provider */ + local?: { + /** + * The master key used to encrypt/decrypt data keys. + * A 96-byte long Buffer or base64 encoded string. + */ + key: Buffer | string; + }; + /** Configuration options for using 'azure' as your KMS provider */ + azure?: + | { + /** The tenant ID identifies the organization for the account */ + tenantId: string; + /** The client ID to authenticate a registered application */ + clientId: string; + /** The client secret to authenticate a registered application */ + clientSecret: string; + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * This is optional, and only needed if customer is using a non-commercial Azure instance + * (e.g. a government or China account, which use different URLs). + * Defaults to "login.microsoftonline.com" + */ + identityPlatformEndpoint?: string | undefined; + } + | { + /** + * If present, an access token to authenticate with Azure. + */ + accessToken: string; + } + | Record; + /** Configuration options for using 'gcp' as your KMS provider */ + gcp?: + | { + /** The service account email to authenticate */ + email: string; + /** A PKCS#8 encrypted key. This can either be a base64 string or a binary representation */ + privateKey: string | Buffer; + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * Defaults to "oauth2.googleapis.com" + */ + endpoint?: string | undefined; + } + | { + /** + * If present, an access token to authenticate with GCP. + */ + accessToken: string; + } + | Record; + /** + * Configuration options for using 'kmip' as your KMS provider + */ + kmip?: { + /** + * The output endpoint string. + * The endpoint consists of a hostname and port separated by a colon. + * E.g. "example.com:123". A port is always present. + */ + endpoint?: string; + }; + }; + /** + * A map of namespaces to a local JSON schema for encryption + * + * **NOTE**: Supplying options.schemaMap provides more security than relying on JSON Schemas obtained from the server. + * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending decrypted data that should be encrypted. + * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption. + * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error. + */ + schemaMap?: Document; + /** Supply a schema for the encrypted fields in the document */ + encryptedFieldsMap?: Document; + /** Allows the user to bypass auto encryption, maintaining implicit decryption */ + bypassAutoEncryption?: boolean; + /** Allows users to bypass query analysis */ + bypassQueryAnalysis?: boolean; + options?: { + /** An optional hook to catch logging messages from the underlying encryption engine */ + logger?: (level: AutoEncryptionLoggerLevel, message: string) => void; + }; + extraOptions?: { + /** + * A local process the driver communicates with to determine how to encrypt values in a command. + * Defaults to "mongodb://%2Fvar%2Fmongocryptd.sock" if domain sockets are available or "mongodb://localhost:27020" otherwise + */ + mongocryptdURI?: string; + /** If true, autoEncryption will not attempt to spawn a mongocryptd before connecting */ + mongocryptdBypassSpawn?: boolean; + /** The path to the mongocryptd executable on the system */ + mongocryptdSpawnPath?: string; + /** Command line arguments to use when auto-spawning a mongocryptd */ + mongocryptdSpawnArgs?: string[]; + /** + * Full path to a MongoDB Crypt shared library to be used (instead of mongocryptd). + * + * This needs to be the path to the file itself, not a directory. + * It can be an absolute or relative path. If the path is relative and + * its first component is `$ORIGIN`, it will be replaced by the directory + * containing the mongodb-client-encryption native addon file. Otherwise, + * the path will be interpreted relative to the current working directory. + * + * Currently, loading different MongoDB Crypt shared library files from different + * MongoClients in the same process is not supported. + * + * If this option is provided and no MongoDB Crypt shared library could be loaded + * from the specified location, creating the MongoClient will fail. + * + * If this option is not provided and `cryptSharedLibRequired` is not specified, + * the AutoEncrypter will attempt to spawn and/or use mongocryptd according + * to the mongocryptd-specific `extraOptions` options. + * + * Specifying a path prevents mongocryptd from being used as a fallback. + * + * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher. + */ + cryptSharedLibPath?: string; + /** + * If specified, never use mongocryptd and instead fail when the MongoDB Crypt + * shared library could not be loaded. + * + * This is always true when `cryptSharedLibPath` is specified. + * + * Requires the MongoDB Crypt shared library, available in MongoDB 6.0 or higher. + */ + cryptSharedLibRequired?: boolean; + /** + * Search paths for a MongoDB Crypt shared library to be used (instead of mongocryptd) + * Only for driver testing! + * @internal + */ + cryptSharedLibSearchPaths?: string[]; + }; + proxyOptions?: ProxyOptions; + /** The TLS options to use connecting to the KMS provider */ + tlsOptions?: CSFLEKMSTlsOptions; +} + +/** + * @public + * + * Extra options related to the mongocryptd process + * \* _Available in MongoDB 6.0 or higher._ + */ +export type AutoEncryptionExtraOptions = NonNullable; + +/** @public */ +export const AutoEncryptionLoggerLevel = Object.freeze({ + FatalError: 0, + Error: 1, + Warning: 2, + Info: 3, + Trace: 4 +} as const); + +/** + * @public + * The level of severity of the log message + * + * | Value | Level | + * |-------|-------| + * | 0 | Fatal Error | + * | 1 | Error | + * | 2 | Warning | + * | 3 | Info | + * | 4 | Trace | + */ +export type AutoEncryptionLoggerLevel = + (typeof AutoEncryptionLoggerLevel)[keyof typeof AutoEncryptionLoggerLevel]; + +// Typescript errors if we index objects with `Symbol.for(...)`, so +// to avoid TS errors we pull them out into variables. Then we can type +// the objects (and class) that we expect to see them on and prevent TS +// errors. +/** @internal */ +const kDecorateResult = Symbol.for('@@mdb.decorateDecryptionResult'); +/** @internal */ +const kDecoratedKeys = Symbol.for('@@mdb.decryptedKeys'); + +/** + * @internal An internal class to be used by the driver for auto encryption + * **NOTE**: Not meant to be instantiated directly, this is for internal use only. + */ +export class AutoEncrypter { + _client: MongoClient; + _bypassEncryption: boolean; + _keyVaultNamespace: string; + _keyVaultClient: MongoClient; + _metaDataClient: MongoClient; + _proxyOptions: ProxyOptions; + _tlsOptions: CSFLEKMSTlsOptions; + _kmsProviders: KMSProviders; + _bypassMongocryptdAndCryptShared: boolean; + _contextCounter: number; + + _mongocryptdManager?: MongocryptdManager; + _mongocryptdClient?: MongoClient; + + /** @internal */ + _mongocrypt: MongoCrypt; + + /** + * Used by devtools to enable decorating decryption results. + * + * When set and enabled, `decrypt` will automatically recursively + * traverse a decrypted document and if a field has been decrypted, + * it will mark it as decrypted. Compass uses this to determine which + * fields were decrypted. + */ + [kDecorateResult] = false; + + /** @internal */ + static getMongoCrypt(): MongoCryptConstructor { + const encryption = getMongoDBClientEncryption(); + if ('kModuleError' in encryption) { + throw encryption.kModuleError; + } + return encryption.MongoCrypt; + } + + /** + * Create an AutoEncrypter + * + * **Note**: Do not instantiate this class directly. Rather, supply the relevant options to a MongoClient + * + * **Note**: Supplying `options.schemaMap` provides more security than relying on JSON Schemas obtained from the server. + * It protects against a malicious server advertising a false JSON Schema, which could trick the client into sending unencrypted data that should be encrypted. + * Schemas supplied in the schemaMap only apply to configuring automatic encryption for Client-Side Field Level Encryption. + * Other validation rules in the JSON schema will not be enforced by the driver and will result in an error. + * + * @example Create an AutoEncrypter that makes use of mongocryptd + * ```ts + * // Enabling autoEncryption via a MongoClient using mongocryptd + * const { MongoClient } = require('mongodb'); + * const client = new MongoClient(URL, { + * autoEncryption: { + * kmsProviders: { + * aws: { + * accessKeyId: AWS_ACCESS_KEY, + * secretAccessKey: AWS_SECRET_KEY + * } + * } + * } + * }); + * ``` + * + * await client.connect(); + * // From here on, the client will be encrypting / decrypting automatically + * @example Create an AutoEncrypter that makes use of libmongocrypt's CSFLE shared library + * ```ts + * // Enabling autoEncryption via a MongoClient using CSFLE shared library + * const { MongoClient } = require('mongodb'); + * const client = new MongoClient(URL, { + * autoEncryption: { + * kmsProviders: { + * aws: {} + * }, + * extraOptions: { + * cryptSharedLibPath: '/path/to/local/crypt/shared/lib', + * cryptSharedLibRequired: true + * } + * } + * }); + * ``` + * + * await client.connect(); + * // From here on, the client will be encrypting / decrypting automatically + */ + constructor(client: MongoClient, options: AutoEncryptionOptions) { + this._client = client; + this._bypassEncryption = options.bypassAutoEncryption === true; + + this._keyVaultNamespace = options.keyVaultNamespace || 'admin.datakeys'; + this._keyVaultClient = options.keyVaultClient || client; + this._metaDataClient = options.metadataClient || client; + this._proxyOptions = options.proxyOptions || {}; + this._tlsOptions = options.tlsOptions || {}; + this._kmsProviders = options.kmsProviders || {}; + + const mongoCryptOptions: MongoCryptOptions = { + cryptoCallbacks + }; + if (options.schemaMap) { + mongoCryptOptions.schemaMap = Buffer.isBuffer(options.schemaMap) + ? options.schemaMap + : (serialize(options.schemaMap) as Buffer); + } + + if (options.encryptedFieldsMap) { + mongoCryptOptions.encryptedFieldsMap = Buffer.isBuffer(options.encryptedFieldsMap) + ? options.encryptedFieldsMap + : (serialize(options.encryptedFieldsMap) as Buffer); + } + + mongoCryptOptions.kmsProviders = !Buffer.isBuffer(this._kmsProviders) + ? (serialize(this._kmsProviders) as Buffer) + : this._kmsProviders; + + if (options.options?.logger) { + mongoCryptOptions.logger = options.options.logger; + } + + if (options.extraOptions && options.extraOptions.cryptSharedLibPath) { + mongoCryptOptions.cryptSharedLibPath = options.extraOptions.cryptSharedLibPath; + } + + if (options.bypassQueryAnalysis) { + mongoCryptOptions.bypassQueryAnalysis = options.bypassQueryAnalysis; + } + + this._bypassMongocryptdAndCryptShared = this._bypassEncryption || !!options.bypassQueryAnalysis; + + if (options.extraOptions && options.extraOptions.cryptSharedLibSearchPaths) { + // Only for driver testing + mongoCryptOptions.cryptSharedLibSearchPaths = options.extraOptions.cryptSharedLibSearchPaths; + } else if (!this._bypassMongocryptdAndCryptShared) { + mongoCryptOptions.cryptSharedLibSearchPaths = ['$SYSTEM']; + } + + const MongoCrypt = AutoEncrypter.getMongoCrypt(); + this._mongocrypt = new MongoCrypt(mongoCryptOptions); + this._contextCounter = 0; + + if ( + options.extraOptions && + options.extraOptions.cryptSharedLibRequired && + !this.cryptSharedLibVersionInfo + ) { + throw new MongoCryptInvalidArgumentError( + '`cryptSharedLibRequired` set but no crypt_shared library loaded' + ); + } + + // Only instantiate mongocryptd manager/client once we know for sure + // that we are not using the CSFLE shared library. + if (!this._bypassMongocryptdAndCryptShared && !this.cryptSharedLibVersionInfo) { + this._mongocryptdManager = new MongocryptdManager(options.extraOptions); + const clientOptions: MongoClientOptions = { + serverSelectionTimeoutMS: 10000 + }; + + if (options.extraOptions == null || typeof options.extraOptions.mongocryptdURI !== 'string') { + clientOptions.family = 4; + } + + this._mongocryptdClient = new MongoClient(this._mongocryptdManager.uri, clientOptions); + } + } + + /** + * Initializes the auto encrypter by spawning a mongocryptd and connecting to it. + * + * This function is a no-op when bypassSpawn is set or the crypt shared library is used. + */ + async init(): Promise { + if (this._bypassMongocryptdAndCryptShared || this.cryptSharedLibVersionInfo) { + return; + } + if (!this._mongocryptdManager) { + throw new MongoRuntimeError( + 'Reached impossible state: mongocryptdManager is undefined when neither bypassSpawn nor the shared lib are specified.' + ); + } + if (!this._mongocryptdClient) { + throw new MongoRuntimeError( + 'Reached impossible state: mongocryptdClient is undefined when neither bypassSpawn nor the shared lib are specified.' + ); + } + + if (!this._mongocryptdManager.bypassSpawn) { + await this._mongocryptdManager.spawn(); + } + + try { + const client = await this._mongocryptdClient.connect(); + return client; + } catch (error) { + const { message } = error; + if (message && (message.match(/timed out after/) || message.match(/ENOTFOUND/))) { + throw new MongoRuntimeError( + 'Unable to connect to `mongocryptd`, please make sure it is running or in your PATH for auto-spawn', + { cause: error } + ); + } + throw error; + } + } + + /** + * Cleans up the `_mongocryptdClient`, if present. + */ + async teardown(force: boolean): Promise { + await this._mongocryptdClient?.close(force); + } + + /** + * Encrypt a command for a given namespace. + */ + async encrypt( + ns: string, + cmd: Document, + options: CommandOptions = {} + ): Promise { + if (this._bypassEncryption) { + // If `bypassAutoEncryption` has been specified, don't encrypt + return cmd; + } + + const commandBuffer = Buffer.isBuffer(cmd) ? cmd : serialize(cmd, options); + + const context = this._mongocrypt.makeEncryptionContext( + MongoDBCollectionNamespace.fromString(ns).db, + commandBuffer + ); + + context.id = this._contextCounter++; + context.ns = ns; + context.document = cmd; + + const stateMachine = new StateMachine({ + promoteValues: false, + promoteLongs: false, + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + return await stateMachine.execute(this, context); + } + + /** + * Decrypt a command response + */ + async decrypt(response: Uint8Array | Document, options: CommandOptions = {}): Promise { + const buffer = Buffer.isBuffer(response) ? response : serialize(response, options); + + const context = this._mongocrypt.makeDecryptionContext(buffer); + + context.id = this._contextCounter++; + + const stateMachine = new StateMachine({ + ...options, + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + + const decorateResult = this[kDecorateResult]; + const result = await stateMachine.execute(this, context); + if (decorateResult) { + decorateDecryptionResult(result, response); + } + return result; + } + + /** + * Ask the user for KMS credentials. + * + * This returns anything that looks like the kmsProviders original input + * option. It can be empty, and any provider specified here will override + * the original ones. + */ + async askForKMSCredentials(): Promise { + return await refreshKMSCredentials(this._kmsProviders); + } + + /** + * Return the current libmongocrypt's CSFLE shared library version + * as `{ version: bigint, versionStr: string }`, or `null` if no CSFLE + * shared library was loaded. + */ + get cryptSharedLibVersionInfo(): { version: bigint; versionStr: string } | null { + return this._mongocrypt.cryptSharedLibVersionInfo; + } + + static get libmongocryptVersion(): string { + return AutoEncrypter.getMongoCrypt().libmongocryptVersion; + } +} + +/** + * Recurse through the (identically-shaped) `decrypted` and `original` + * objects and attach a `decryptedKeys` property on each sub-object that + * contained encrypted fields. Because we only call this on BSON responses, + * we do not need to worry about circular references. + * + * @internal + */ +function decorateDecryptionResult( + decrypted: Document & { [kDecoratedKeys]?: Array }, + original: Document, + isTopLevelDecorateCall = true +): void { + if (isTopLevelDecorateCall) { + // The original value could have been either a JS object or a BSON buffer + if (Buffer.isBuffer(original)) { + original = deserialize(original); + } + if (Buffer.isBuffer(decrypted)) { + throw new MongoRuntimeError('Expected result of decryption to be deserialized BSON object'); + } + } + + if (!decrypted || typeof decrypted !== 'object') return; + for (const k of Object.keys(decrypted)) { + const originalValue = original[k]; + + // An object was decrypted by libmongocrypt if and only if it was + // a BSON Binary object with subtype 6. + if (originalValue && originalValue._bsontype === 'Binary' && originalValue.sub_type === 6) { + if (!decrypted[kDecoratedKeys]) { + Object.defineProperty(decrypted, kDecoratedKeys, { + value: [], + configurable: true, + enumerable: false, + writable: false + }); + } + // this is defined in the preceding if-statement + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + decrypted[kDecoratedKeys]!.push(k); + // Do not recurse into this decrypted value. It could be a sub-document/array, + // in which case there is no original value associated with its subfields. + continue; + } + + decorateDecryptionResult(decrypted[k], originalValue, false); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/client_encryption.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/client_encryption.ts new file mode 100644 index 000000000..a9e77ed19 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/client_encryption.ts @@ -0,0 +1,984 @@ +import type { + ExplicitEncryptionContextOptions, + MongoCrypt, + MongoCryptConstructor, + MongoCryptOptions +} from 'mongodb-client-encryption'; + +import { type Binary, type Document, type Long, serialize, type UUID } from '../bson'; +import { type AnyBulkWriteOperation, type BulkWriteResult } from '../bulk/common'; +import { type ProxyOptions } from '../cmap/connection'; +import { type Collection } from '../collection'; +import { type FindCursor } from '../cursor/find_cursor'; +import { type Db } from '../db'; +import { getMongoDBClientEncryption } from '../deps'; +import { type MongoClient } from '../mongo_client'; +import { type Filter, type WithId } from '../mongo_types'; +import { type CreateCollectionOptions } from '../operations/create_collection'; +import { type DeleteResult } from '../operations/delete'; +import { MongoDBCollectionNamespace } from '../utils'; +import * as cryptoCallbacks from './crypto_callbacks'; +import { + MongoCryptCreateDataKeyError, + MongoCryptCreateEncryptedCollectionError, + MongoCryptInvalidArgumentError +} from './errors'; +import { + type ClientEncryptionDataKeyProvider, + type KMSProviders, + refreshKMSCredentials +} from './providers/index'; +import { type CSFLEKMSTlsOptions, StateMachine } from './state_machine'; + +/** + * @public + * The schema for a DataKey in the key vault collection. + */ +export interface DataKey { + _id: UUID; + version?: number; + keyAltNames?: string[]; + keyMaterial: Binary; + creationDate: Date; + updateDate: Date; + status: number; + masterKey: Document; +} + +/** + * @public + * The public interface for explicit in-use encryption + */ +export class ClientEncryption { + /** @internal */ + _client: MongoClient; + /** @internal */ + _keyVaultNamespace: string; + /** @internal */ + _keyVaultClient: MongoClient; + /** @internal */ + _proxyOptions: ProxyOptions; + /** @internal */ + _tlsOptions: CSFLEKMSTlsOptions; + /** @internal */ + _kmsProviders: KMSProviders; + + /** @internal */ + _mongoCrypt: MongoCrypt; + + /** @internal */ + static getMongoCrypt(): MongoCryptConstructor { + const encryption = getMongoDBClientEncryption(); + if ('kModuleError' in encryption) { + throw encryption.kModuleError; + } + return encryption.MongoCrypt; + } + + /** + * Create a new encryption instance + * + * @example + * ```ts + * new ClientEncryption(mongoClient, { + * keyVaultNamespace: 'client.encryption', + * kmsProviders: { + * local: { + * key: masterKey // The master key used for encryption/decryption. A 96-byte long Buffer + * } + * } + * }); + * ``` + * + * @example + * ```ts + * new ClientEncryption(mongoClient, { + * keyVaultNamespace: 'client.encryption', + * kmsProviders: { + * aws: { + * accessKeyId: AWS_ACCESS_KEY, + * secretAccessKey: AWS_SECRET_KEY + * } + * } + * }); + * ``` + */ + constructor(client: MongoClient, options: ClientEncryptionOptions) { + this._client = client; + this._proxyOptions = options.proxyOptions ?? {}; + this._tlsOptions = options.tlsOptions ?? {}; + this._kmsProviders = options.kmsProviders || {}; + + if (options.keyVaultNamespace == null) { + throw new MongoCryptInvalidArgumentError('Missing required option `keyVaultNamespace`'); + } + + const mongoCryptOptions: MongoCryptOptions = { + ...options, + cryptoCallbacks, + kmsProviders: !Buffer.isBuffer(this._kmsProviders) + ? (serialize(this._kmsProviders) as Buffer) + : this._kmsProviders + }; + + this._keyVaultNamespace = options.keyVaultNamespace; + this._keyVaultClient = options.keyVaultClient || client; + const MongoCrypt = ClientEncryption.getMongoCrypt(); + this._mongoCrypt = new MongoCrypt(mongoCryptOptions); + } + + /** + * Creates a data key used for explicit encryption and inserts it into the key vault namespace + * + * @example + * ```ts + * // Using async/await to create a local key + * const dataKeyId = await clientEncryption.createDataKey('local'); + * ``` + * + * @example + * ```ts + * // Using async/await to create an aws key + * const dataKeyId = await clientEncryption.createDataKey('aws', { + * masterKey: { + * region: 'us-east-1', + * key: 'xxxxxxxxxxxxxx' // CMK ARN here + * } + * }); + * ``` + * + * @example + * ```ts + * // Using async/await to create an aws key with a keyAltName + * const dataKeyId = await clientEncryption.createDataKey('aws', { + * masterKey: { + * region: 'us-east-1', + * key: 'xxxxxxxxxxxxxx' // CMK ARN here + * }, + * keyAltNames: [ 'mySpecialKey' ] + * }); + * ``` + */ + async createDataKey( + provider: ClientEncryptionDataKeyProvider, + options: ClientEncryptionCreateDataKeyProviderOptions = {} + ): Promise { + if (options.keyAltNames && !Array.isArray(options.keyAltNames)) { + throw new MongoCryptInvalidArgumentError( + `Option "keyAltNames" must be an array of strings, but was of type ${typeof options.keyAltNames}.` + ); + } + + let keyAltNames = undefined; + if (options.keyAltNames && options.keyAltNames.length > 0) { + keyAltNames = options.keyAltNames.map((keyAltName, i) => { + if (typeof keyAltName !== 'string') { + throw new MongoCryptInvalidArgumentError( + `Option "keyAltNames" must be an array of strings, but item at index ${i} was of type ${typeof keyAltName}` + ); + } + + return serialize({ keyAltName }); + }); + } + + let keyMaterial = undefined; + if (options.keyMaterial) { + keyMaterial = serialize({ keyMaterial: options.keyMaterial }); + } + + const dataKeyBson = serialize({ + provider, + ...options.masterKey + }); + + const context = this._mongoCrypt.makeDataKeyContext(dataKeyBson, { + keyAltNames, + keyMaterial + }); + + const stateMachine = new StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + + const dataKey = await stateMachine.execute(this, context); + + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + const { insertedId } = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .insertOne(dataKey, { writeConcern: { w: 'majority' } }); + + return insertedId; + } + + /** + * Searches the keyvault for any data keys matching the provided filter. If there are matches, rewrapManyDataKey then attempts to re-wrap the data keys using the provided options. + * + * If no matches are found, then no bulk write is performed. + * + * @example + * ```ts + * // rewrapping all data data keys (using a filter that matches all documents) + * const filter = {}; + * + * const result = await clientEncryption.rewrapManyDataKey(filter); + * if (result.bulkWriteResult != null) { + * // keys were re-wrapped, results will be available in the bulkWrite object. + * } + * ``` + * + * @example + * ```ts + * // attempting to rewrap all data keys with no matches + * const filter = { _id: new Binary() } // assume _id matches no documents in the database + * const result = await clientEncryption.rewrapManyDataKey(filter); + * + * if (result.bulkWriteResult == null) { + * // no keys matched, `bulkWriteResult` does not exist on the result object + * } + * ``` + */ + async rewrapManyDataKey( + filter: Filter, + options: ClientEncryptionRewrapManyDataKeyProviderOptions + ): Promise<{ bulkWriteResult?: BulkWriteResult }> { + let keyEncryptionKeyBson = undefined; + if (options) { + const keyEncryptionKey = Object.assign({ provider: options.provider }, options.masterKey); + keyEncryptionKeyBson = serialize(keyEncryptionKey); + } + const filterBson = serialize(filter); + const context = this._mongoCrypt.makeRewrapManyDataKeyContext(filterBson, keyEncryptionKeyBson); + const stateMachine = new StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + + const { v: dataKeys } = await stateMachine.execute<{ v: DataKey[] }>(this, context); + if (dataKeys.length === 0) { + return {}; + } + + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + const replacements = dataKeys.map( + (key: DataKey): AnyBulkWriteOperation => ({ + updateOne: { + filter: { _id: key._id }, + update: { + $set: { + masterKey: key.masterKey, + keyMaterial: key.keyMaterial + }, + $currentDate: { + updateDate: true + } + } + } + }) + ); + + const result = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .bulkWrite(replacements, { + writeConcern: { w: 'majority' } + }); + + return { bulkWriteResult: result }; + } + + /** + * Deletes the key with the provided id from the keyvault, if it exists. + * + * @example + * ```ts + * // delete a key by _id + * const id = new Binary(); // id is a bson binary subtype 4 object + * const { deletedCount } = await clientEncryption.deleteKey(id); + * + * if (deletedCount != null && deletedCount > 0) { + * // successful deletion + * } + * ``` + * + */ + async deleteKey(_id: Binary): Promise { + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + return await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .deleteOne({ _id }, { writeConcern: { w: 'majority' } }); + } + + /** + * Finds all the keys currently stored in the keyvault. + * + * This method will not throw. + * + * @returns a FindCursor over all keys in the keyvault. + * @example + * ```ts + * // fetching all keys + * const keys = await clientEncryption.getKeys().toArray(); + * ``` + */ + getKeys(): FindCursor { + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + return this._keyVaultClient + .db(dbName) + .collection(collectionName) + .find({}, { readConcern: { level: 'majority' } }); + } + + /** + * Finds a key in the keyvault with the specified _id. + * + * Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // getting a key by id + * const id = new Binary(); // id is a bson binary subtype 4 object + * const key = await clientEncryption.getKey(id); + * if (!key) { + * // key is null if there was no matching key + * } + * ``` + */ + async getKey(_id: Binary): Promise { + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + return await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOne({ _id }, { readConcern: { level: 'majority' } }); + } + + /** + * Finds a key in the keyvault which has the specified keyAltName. + * + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the keyAltName. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // get a key by alt name + * const keyAltName = 'keyAltName'; + * const key = await clientEncryption.getKeyByAltName(keyAltName); + * if (!key) { + * // key is null if there is no matching key + * } + * ``` + */ + async getKeyByAltName(keyAltName: string): Promise | null> { + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + return await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOne({ keyAltNames: keyAltName }, { readConcern: { level: 'majority' } }); + } + + /** + * Adds a keyAltName to a key identified by the provided _id. + * + * This method resolves to/returns the *old* key value (prior to adding the new altKeyName). + * + * @param _id - The id of the document to update. + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // adding an keyAltName to a data key + * const id = new Binary(); // id is a bson binary subtype 4 object + * const keyAltName = 'keyAltName'; + * const oldKey = await clientEncryption.addKeyAltName(id, keyAltName); + * if (!oldKey) { + * // null is returned if there is no matching document with an id matching the supplied id + * } + * ``` + */ + async addKeyAltName(_id: Binary, keyAltName: string): Promise | null> { + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + const value = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOneAndUpdate( + { _id }, + { $addToSet: { keyAltNames: keyAltName } }, + { writeConcern: { w: 'majority' }, returnDocument: 'before' } + ); + + return value; + } + + /** + * Adds a keyAltName to a key identified by the provided _id. + * + * This method resolves to/returns the *old* key value (prior to removing the new altKeyName). + * + * If the removed keyAltName is the last keyAltName for that key, the `altKeyNames` property is unset from the document. + * + * @param _id - The id of the document to update. + * @param keyAltName - a keyAltName to search for a key + * @returns Returns a promise that either resolves to a {@link DataKey} if a document matches the key or null if no documents + * match the id. The promise rejects with an error if an error is thrown. + * @example + * ```ts + * // removing a key alt name from a data key + * const id = new Binary(); // id is a bson binary subtype 4 object + * const keyAltName = 'keyAltName'; + * const oldKey = await clientEncryption.removeKeyAltName(id, keyAltName); + * + * if (!oldKey) { + * // null is returned if there is no matching document with an id matching the supplied id + * } + * ``` + */ + async removeKeyAltName(_id: Binary, keyAltName: string): Promise | null> { + const { db: dbName, collection: collectionName } = MongoDBCollectionNamespace.fromString( + this._keyVaultNamespace + ); + + const pipeline = [ + { + $set: { + keyAltNames: { + $cond: [ + { + $eq: ['$keyAltNames', [keyAltName]] + }, + '$$REMOVE', + { + $filter: { + input: '$keyAltNames', + cond: { + $ne: ['$$this', keyAltName] + } + } + } + ] + } + } + } + ]; + const value = await this._keyVaultClient + .db(dbName) + .collection(collectionName) + .findOneAndUpdate({ _id }, pipeline, { + writeConcern: { w: 'majority' }, + returnDocument: 'before' + }); + + return value; + } + + /** + * A convenience method for creating an encrypted collection. + * This method will create data keys for any encryptedFields that do not have a `keyId` defined + * and then create a new collection with the full set of encryptedFields. + * + * @param db - A Node.js driver Db object with which to create the collection + * @param name - The name of the collection to be created + * @param options - Options for createDataKey and for createCollection + * @returns created collection and generated encryptedFields + * @throws MongoCryptCreateDataKeyError - If part way through the process a createDataKey invocation fails, an error will be rejected that has the partial `encryptedFields` that were created. + * @throws MongoCryptCreateEncryptedCollectionError - If creating the collection fails, an error will be rejected that has the entire `encryptedFields` that were created. + */ + async createEncryptedCollection( + db: Db, + name: string, + options: { + provider: ClientEncryptionDataKeyProvider; + createCollectionOptions: Omit & { + encryptedFields: Document; + }; + masterKey?: AWSEncryptionKeyOptions | AzureEncryptionKeyOptions | GCPEncryptionKeyOptions; + } + ): Promise<{ collection: Collection; encryptedFields: Document }> { + const { + provider, + masterKey, + createCollectionOptions: { + encryptedFields: { ...encryptedFields }, + ...createCollectionOptions + } + } = options; + + if (Array.isArray(encryptedFields.fields)) { + const createDataKeyPromises = encryptedFields.fields.map(async field => + field == null || typeof field !== 'object' || field.keyId != null + ? field + : { + ...field, + keyId: await this.createDataKey(provider, { masterKey }) + } + ); + + const createDataKeyResolutions = await Promise.allSettled(createDataKeyPromises); + + encryptedFields.fields = createDataKeyResolutions.map((resolution, index) => + resolution.status === 'fulfilled' ? resolution.value : encryptedFields.fields[index] + ); + + const rejection = createDataKeyResolutions.find( + (result): result is PromiseRejectedResult => result.status === 'rejected' + ); + if (rejection != null) { + throw new MongoCryptCreateDataKeyError(encryptedFields, { cause: rejection.reason }); + } + } + + try { + const collection = await db.createCollection(name, { + ...createCollectionOptions, + encryptedFields + }); + return { collection, encryptedFields }; + } catch (cause) { + throw new MongoCryptCreateEncryptedCollectionError(encryptedFields, { cause }); + } + } + + /** + * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must + * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error. + * + * @param value - The value that you wish to serialize. Must be of a type that can be serialized into BSON + * @param options - + * @returns a Promise that either resolves with the encrypted value, or rejects with an error. + * + * @example + * ```ts + * // Encryption with async/await api + * async function encryptMyData(value) { + * const keyId = await clientEncryption.createDataKey('local'); + * return clientEncryption.encrypt(value, { keyId, algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' }); + * } + * ``` + * + * @example + * ```ts + * // Encryption using a keyAltName + * async function encryptMyData(value) { + * await clientEncryption.createDataKey('local', { keyAltNames: 'mySpecialKey' }); + * return clientEncryption.encrypt(value, { keyAltName: 'mySpecialKey', algorithm: 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' }); + * } + * ``` + */ + async encrypt(value: unknown, options: ClientEncryptionEncryptOptions): Promise { + return await this._encrypt(value, false, options); + } + + /** + * Encrypts a Match Expression or Aggregate Expression to query a range index. + * + * Only supported when queryType is "rangePreview" and algorithm is "RangePreview". + * + * @experimental The Range algorithm is experimental only. It is not intended for production use. It is subject to breaking changes. + * + * @param expression - a BSON document of one of the following forms: + * 1. A Match Expression of this form: + * `{$and: [{: {$gt: }}, {: {$lt: }}]}` + * 2. An Aggregate Expression of this form: + * `{$and: [{$gt: [, ]}, {$lt: [, ]}]}` + * + * `$gt` may also be `$gte`. `$lt` may also be `$lte`. + * + * @param options - + * @returns Returns a Promise that either resolves with the encrypted value or rejects with an error. + */ + async encryptExpression( + expression: Document, + options: ClientEncryptionEncryptOptions + ): Promise { + return await this._encrypt(expression, true, options); + } + + /** + * Explicitly decrypt a provided encrypted value + * + * @param value - An encrypted value + * @returns a Promise that either resolves with the decrypted value, or rejects with an error + * + * @example + * ```ts + * // Decrypting value with async/await API + * async function decryptMyValue(value) { + * return clientEncryption.decrypt(value); + * } + * ``` + */ + async decrypt(value: Binary): Promise { + const valueBuffer = serialize({ v: value }); + const context = this._mongoCrypt.makeExplicitDecryptionContext(valueBuffer); + + const stateMachine = new StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + + const { v } = await stateMachine.execute<{ v: T }>(this, context); + + return v; + } + + /** + * @internal + * Ask the user for KMS credentials. + * + * This returns anything that looks like the kmsProviders original input + * option. It can be empty, and any provider specified here will override + * the original ones. + */ + async askForKMSCredentials(): Promise { + return await refreshKMSCredentials(this._kmsProviders); + } + + static get libmongocryptVersion() { + return ClientEncryption.getMongoCrypt().libmongocryptVersion; + } + + /** + * @internal + * A helper that perform explicit encryption of values and expressions. + * Explicitly encrypt a provided value. Note that either `options.keyId` or `options.keyAltName` must + * be specified. Specifying both `options.keyId` and `options.keyAltName` is considered an error. + * + * @param value - The value that you wish to encrypt. Must be of a type that can be serialized into BSON + * @param expressionMode - a boolean that indicates whether or not to encrypt the value as an expression + * @param options - options to pass to encrypt + * @returns the raw result of the call to stateMachine.execute(). When expressionMode is set to true, the return + * value will be a bson document. When false, the value will be a BSON Binary. + * + */ + private async _encrypt( + value: unknown, + expressionMode: boolean, + options: ClientEncryptionEncryptOptions + ): Promise { + const { algorithm, keyId, keyAltName, contentionFactor, queryType, rangeOptions } = options; + const contextOptions: ExplicitEncryptionContextOptions = { + expressionMode, + algorithm + }; + if (keyId) { + contextOptions.keyId = keyId.buffer; + } + if (keyAltName) { + if (keyId) { + throw new MongoCryptInvalidArgumentError( + `"options" cannot contain both "keyId" and "keyAltName"` + ); + } + if (typeof keyAltName !== 'string') { + throw new MongoCryptInvalidArgumentError( + `"options.keyAltName" must be of type string, but was of type ${typeof keyAltName}` + ); + } + + contextOptions.keyAltName = serialize({ keyAltName }); + } + if (typeof contentionFactor === 'number' || typeof contentionFactor === 'bigint') { + contextOptions.contentionFactor = contentionFactor; + } + if (typeof queryType === 'string') { + contextOptions.queryType = queryType; + } + + if (typeof rangeOptions === 'object') { + contextOptions.rangeOptions = serialize(rangeOptions); + } + + const valueBuffer = serialize({ v: value }); + const stateMachine = new StateMachine({ + proxyOptions: this._proxyOptions, + tlsOptions: this._tlsOptions + }); + const context = this._mongoCrypt.makeExplicitEncryptionContext(valueBuffer, contextOptions); + + const result = await stateMachine.execute<{ v: Binary }>(this, context); + return result.v; + } +} + +/** + * @public + * Options to provide when encrypting data. + */ +export interface ClientEncryptionEncryptOptions { + /** + * The algorithm to use for encryption. + */ + algorithm: + | 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' + | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random' + | 'Indexed' + | 'Unindexed' + | 'RangePreview'; + + /** + * The id of the Binary dataKey to use for encryption + */ + keyId?: Binary; + + /** + * A unique string name corresponding to an already existing dataKey. + */ + keyAltName?: string; + + /** The contention factor. */ + contentionFactor?: bigint | number; + + /** + * The query type supported. Only the queryType `equality` is stable. + * + * @experimental Public Technical Preview: The queryType `rangePreview` is experimental. + */ + queryType?: 'equality' | 'rangePreview'; + + /** @experimental Public Technical Preview: The index options for a Queryable Encryption field supporting "rangePreview" queries.*/ + rangeOptions?: RangeOptions; +} + +/** + * @public + * @experimental + */ +export interface ClientEncryptionRewrapManyDataKeyProviderOptions { + provider: ClientEncryptionDataKeyProvider; + masterKey?: + | AWSEncryptionKeyOptions + | AzureEncryptionKeyOptions + | GCPEncryptionKeyOptions + | undefined; +} + +/** + * @public + * Additional settings to provide when creating a new `ClientEncryption` instance. + */ +export interface ClientEncryptionOptions { + /** + * The namespace of the key vault, used to store encryption keys + */ + keyVaultNamespace: string; + + /** + * A MongoClient used to fetch keys from a key vault. Defaults to client. + */ + keyVaultClient?: MongoClient | undefined; + + /** + * Options for specific KMS providers to use + */ + kmsProviders?: KMSProviders; + + /** + * Options for specifying a Socks5 proxy to use for connecting to the KMS. + */ + proxyOptions?: ProxyOptions; + + /** + * TLS options for kms providers to use. + */ + tlsOptions?: CSFLEKMSTlsOptions; +} + +/** + * @public + * Configuration options for making an AWS encryption key + */ +export interface AWSEncryptionKeyOptions { + /** + * The AWS region of the KMS + */ + region: string; + + /** + * The Amazon Resource Name (ARN) to the AWS customer master key (CMK) + */ + key: string; + + /** + * An alternate host to send KMS requests to. May include port number. + */ + endpoint?: string | undefined; +} + +/** + * @public + * Configuration options for making an AWS encryption key + */ +export interface GCPEncryptionKeyOptions { + /** + * GCP project ID + */ + projectId: string; + + /** + * Location name (e.g. "global") + */ + location: string; + + /** + * Key ring name + */ + keyRing: string; + + /** + * Key name + */ + keyName: string; + + /** + * Key version + */ + keyVersion?: string | undefined; + + /** + * KMS URL, defaults to `https://www.googleapis.com/auth/cloudkms` + */ + endpoint?: string | undefined; +} + +/** + * @public + * Configuration options for making an Azure encryption key + */ +export interface AzureEncryptionKeyOptions { + /** + * Key name + */ + keyName: string; + + /** + * Key vault URL, typically `.vault.azure.net` + */ + keyVaultEndpoint: string; + + /** + * Key version + */ + keyVersion?: string | undefined; +} + +/** + * @public + * Options to provide when creating a new data key. + */ +export interface ClientEncryptionCreateDataKeyProviderOptions { + /** + * Identifies a new KMS-specific key used to encrypt the new data key + */ + masterKey?: + | AWSEncryptionKeyOptions + | AzureEncryptionKeyOptions + | GCPEncryptionKeyOptions + | undefined; + + /** + * An optional list of string alternate names used to reference a key. + * If a key is created with alternate names, then encryption may refer to the key by the unique alternate name instead of by _id. + */ + keyAltNames?: string[] | undefined; + + /** @experimental */ + keyMaterial?: Buffer | Binary; +} + +/** + * @public + * @experimental + */ +export interface ClientEncryptionRewrapManyDataKeyProviderOptions { + provider: ClientEncryptionDataKeyProvider; + masterKey?: + | AWSEncryptionKeyOptions + | AzureEncryptionKeyOptions + | GCPEncryptionKeyOptions + | undefined; +} + +/** + * @public + * @experimental + */ +export interface ClientEncryptionRewrapManyDataKeyResult { + /** The result of rewrapping data keys. If unset, no keys matched the filter. */ + bulkWriteResult?: BulkWriteResult; +} + +/** + * @public + * RangeOptions specifies index options for a Queryable Encryption field supporting "rangePreview" queries. + * min, max, sparsity, and range must match the values set in the encryptedFields of the destination collection. + * For double and decimal128, min/max/precision must all be set, or all be unset. + */ +export interface RangeOptions { + min?: any; + max?: any; + sparsity: Long; + precision?: number; +} + +/** + * @public + * Options to provide when encrypting data. + */ +export interface ClientEncryptionEncryptOptions { + /** + * The algorithm to use for encryption. + */ + algorithm: + | 'AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic' + | 'AEAD_AES_256_CBC_HMAC_SHA_512-Random' + | 'Indexed' + | 'Unindexed' + | 'RangePreview'; + + /** + * The id of the Binary dataKey to use for encryption + */ + keyId?: Binary; + + /** + * A unique string name corresponding to an already existing dataKey. + */ + keyAltName?: string; + + /** The contention factor. */ + contentionFactor?: bigint | number; + + /** + * The query type supported. Only the queryType `equality` is stable. + * + * @experimental Public Technical Preview: The queryType `rangePreview` is experimental. + */ + queryType?: 'equality' | 'rangePreview'; + + /** @experimental Public Technical Preview: The index options for a Queryable Encryption field supporting "rangePreview" queries.*/ + rangeOptions?: RangeOptions; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/crypto_callbacks.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/crypto_callbacks.ts new file mode 100644 index 000000000..1e2f1f7f0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/crypto_callbacks.ts @@ -0,0 +1,87 @@ +import * as crypto from 'crypto'; + +type AES256Callback = (key: Buffer, iv: Buffer, input: Buffer, output: Buffer) => number | Error; + +export function makeAES256Hook( + method: 'createCipheriv' | 'createDecipheriv', + mode: 'aes-256-cbc' | 'aes-256-ctr' +): AES256Callback { + return function (key: Buffer, iv: Buffer, input: Buffer, output: Buffer): number | Error { + let result; + + try { + const cipher = crypto[method](mode, key, iv); + cipher.setAutoPadding(false); + result = cipher.update(input); + const final = cipher.final(); + if (final.length > 0) { + result = Buffer.concat([result, final]); + } + } catch (e) { + return e; + } + + result.copy(output); + return result.length; + }; +} + +export function randomHook(buffer: Buffer, count: number): number | Error { + try { + crypto.randomFillSync(buffer, 0, count); + } catch (e) { + return e; + } + return count; +} + +export function sha256Hook(input: Buffer, output: Buffer): number | Error { + let result; + try { + result = crypto.createHash('sha256').update(input).digest(); + } catch (e) { + return e; + } + + result.copy(output); + return result.length; +} + +type HMACHook = (key: Buffer, input: Buffer, output: Buffer) => number | Error; +export function makeHmacHook(algorithm: 'sha512' | 'sha256'): HMACHook { + return (key: Buffer, input: Buffer, output: Buffer): number | Error => { + let result; + try { + result = crypto.createHmac(algorithm, key).update(input).digest(); + } catch (e) { + return e; + } + + result.copy(output); + return result.length; + }; +} + +export function signRsaSha256Hook(key: Buffer, input: Buffer, output: Buffer): number | Error { + let result; + try { + const signer = crypto.createSign('sha256WithRSAEncryption'); + const privateKey = Buffer.from( + `-----BEGIN PRIVATE KEY-----\n${key.toString('base64')}\n-----END PRIVATE KEY-----\n` + ); + + result = signer.update(input).end().sign(privateKey); + } catch (e) { + return e; + } + + result.copy(output); + return result.length; +} + +export const aes256CbcEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-cbc'); +export const aes256CbcDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-cbc'); +export const aes256CtrEncryptHook = makeAES256Hook('createCipheriv', 'aes-256-ctr'); +export const aes256CtrDecryptHook = makeAES256Hook('createDecipheriv', 'aes-256-ctr'); +export const hmacSha512Hook = makeHmacHook('sha512'); +export const hmacSha256Hook = makeHmacHook('sha256'); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/errors.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/errors.ts new file mode 100644 index 000000000..7ab70748a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/errors.ts @@ -0,0 +1,141 @@ +import { type Document } from '../bson'; +import { MongoError } from '../error'; + +/** + * @public + * An error indicating that something went wrong specifically with MongoDB Client Encryption + */ +export class MongoCryptError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options: { cause?: Error } = {}) { + super(message, options); + } + + override get name() { + return 'MongoCryptError'; + } +} + +/** + * @public + * + * An error indicating an invalid argument was provided to an encryption API. + */ +export class MongoCryptInvalidArgumentError extends MongoCryptError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name() { + return 'MongoCryptInvalidArgumentError'; + } +} +/** + * @public + * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create data keys + */ +export class MongoCryptCreateDataKeyError extends MongoCryptError { + encryptedFields: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(encryptedFields: Document, { cause }: { cause: Error }) { + super(`Unable to complete creating data keys: ${cause.message}`, { cause }); + this.encryptedFields = encryptedFields; + } + + override get name() { + return 'MongoCryptCreateDataKeyError'; + } +} + +/** + * @public + * An error indicating that `ClientEncryption.createEncryptedCollection()` failed to create a collection + */ +export class MongoCryptCreateEncryptedCollectionError extends MongoCryptError { + encryptedFields: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(encryptedFields: Document, { cause }: { cause: Error }) { + super(`Unable to create collection: ${cause.message}`, { cause }); + this.encryptedFields = encryptedFields; + } + + override get name() { + return 'MongoCryptCreateEncryptedCollectionError'; + } +} + +/** + * @public + * An error indicating that mongodb-client-encryption failed to auto-refresh Azure KMS credentials. + */ +export class MongoCryptAzureKMSRequestError extends MongoCryptError { + /** The body of the http response that failed, if present. */ + body?: Document; + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, body?: Document) { + super(message); + this.body = body; + } + + override get name(): string { + return 'MongoCryptAzureKMSRequestError'; + } +} + +/** @public */ +export class MongoCryptKMSRequestNetworkTimeoutError extends MongoCryptError { + override get name(): string { + return 'MongoCryptKMSRequestNetworkTimeoutError'; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/mongocryptd_manager.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/mongocryptd_manager.ts new file mode 100644 index 000000000..499f2aab2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/mongocryptd_manager.ts @@ -0,0 +1,96 @@ +import type { ChildProcess } from 'child_process'; + +import { MongoNetworkTimeoutError } from '../error'; +import { type AutoEncryptionExtraOptions } from './auto_encrypter'; + +/** + * @internal + * An internal class that handles spawning a mongocryptd. + */ +export class MongocryptdManager { + static DEFAULT_MONGOCRYPTD_URI = 'mongodb://localhost:27020'; + + uri: string; + bypassSpawn: boolean; + spawnPath: string; + spawnArgs: Array; + _child?: ChildProcess; + + constructor(extraOptions: AutoEncryptionExtraOptions = {}) { + this.uri = + typeof extraOptions.mongocryptdURI === 'string' && extraOptions.mongocryptdURI.length > 0 + ? extraOptions.mongocryptdURI + : MongocryptdManager.DEFAULT_MONGOCRYPTD_URI; + + this.bypassSpawn = !!extraOptions.mongocryptdBypassSpawn; + + this.spawnPath = extraOptions.mongocryptdSpawnPath || ''; + this.spawnArgs = []; + if (Array.isArray(extraOptions.mongocryptdSpawnArgs)) { + this.spawnArgs = this.spawnArgs.concat(extraOptions.mongocryptdSpawnArgs); + } + if ( + this.spawnArgs + .filter(arg => typeof arg === 'string') + .every(arg => arg.indexOf('--idleShutdownTimeoutSecs') < 0) + ) { + this.spawnArgs.push('--idleShutdownTimeoutSecs', '60'); + } + } + + /** + * Will check to see if a mongocryptd is up. If it is not up, it will attempt + * to spawn a mongocryptd in a detached process, and then wait for it to be up. + */ + async spawn(): Promise { + const cmdName = this.spawnPath || 'mongocryptd'; + + // eslint-disable-next-line @typescript-eslint/no-var-requires + const { spawn } = require('child_process') as typeof import('child_process'); + + // Spawned with stdio: ignore and detached: true + // to ensure child can outlive parent. + this._child = spawn(cmdName, this.spawnArgs, { + stdio: 'ignore', + detached: true + }); + + this._child.on('error', () => { + // From the FLE spec: + // "The stdout and stderr of the spawned process MUST not be exposed in the driver + // (e.g. redirect to /dev/null). Users can pass the argument --logpath to + // extraOptions.mongocryptdSpawnArgs if they need to inspect mongocryptd logs. + // If spawning is necessary, the driver MUST spawn mongocryptd whenever server + // selection on the MongoClient to mongocryptd fails. If the MongoClient fails to + // connect after spawning, the server selection error is propagated to the user." + // The AutoEncrypter and MongoCryptdManager should work together to spawn + // mongocryptd whenever necessary. Additionally, the `mongocryptd` intentionally + // shuts down after 60s and gets respawned when necessary. We rely on server + // selection timeouts when connecting to the `mongocryptd` to inform users that something + // has been configured incorrectly. For those reasons, we suppress stderr from + // the `mongocryptd` process and immediately unref the process. + }); + + // unref child to remove handle from event loop + this._child.unref(); + } + + /** + * @returns the result of `fn` or rejects with an error. + */ + async withRespawn(fn: () => Promise): ReturnType { + try { + const result = await fn(); + return result; + } catch (err) { + // If we are not bypassing spawning, then we should retry once on a MongoTimeoutError (server selection error) + const shouldSpawn = err instanceof MongoNetworkTimeoutError && !this.bypassSpawn; + if (!shouldSpawn) { + throw err; + } + } + await this.spawn(); + const result = await fn(); + return result; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/aws.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/aws.ts new file mode 100644 index 000000000..240e560bd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/aws.ts @@ -0,0 +1,27 @@ +import { AWSSDKCredentialProvider } from '../../cmap/auth/aws_temporary_credentials'; +import { type KMSProviders } from '.'; + +/** + * @internal + */ +export async function loadAWSCredentials(kmsProviders: KMSProviders): Promise { + const credentialProvider = new AWSSDKCredentialProvider(); + + // We shouldn't ever receive a response from the AWS SDK that doesn't have a `SecretAccessKey` + // or `AccessKeyId`. However, TS says these fields are optional. We provide empty strings + // and let libmongocrypt error if we're unable to fetch the required keys. + const { + SecretAccessKey = '', + AccessKeyId = '', + Token + } = await credentialProvider.getCredentials(); + const aws: NonNullable = { + secretAccessKey: SecretAccessKey, + accessKeyId: AccessKeyId + }; + // the AWS session token is only required for temporary credentials so only attach it to the + // result if it's present in the response from the aws sdk + Token != null && (aws.sessionToken = Token); + + return { ...kmsProviders, aws }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/azure.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/azure.ts new file mode 100644 index 000000000..bee6038bd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/azure.ts @@ -0,0 +1,170 @@ +import { type Document } from '../../bson'; +import { MongoCryptAzureKMSRequestError, MongoCryptKMSRequestNetworkTimeoutError } from '../errors'; +import { type KMSProviders } from './index'; +import { get } from './utils'; + +const MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS = 6000; + +/** + * The access token that libmongocrypt expects for Azure kms. + */ +interface AccessToken { + accessToken: string; +} + +/** + * The response from the azure idms endpoint, including the `expiresOnTimestamp`. + * `expiresOnTimestamp` is needed for caching. + */ +interface AzureTokenCacheEntry extends AccessToken { + accessToken: string; + expiresOnTimestamp: number; +} + +/** + * @internal + */ +export class AzureCredentialCache { + cachedToken: AzureTokenCacheEntry | null = null; + + async getToken(): Promise { + if (this.cachedToken == null || this.needsRefresh(this.cachedToken)) { + this.cachedToken = await this._getToken(); + } + + return { accessToken: this.cachedToken.accessToken }; + } + + needsRefresh(token: AzureTokenCacheEntry): boolean { + const timeUntilExpirationMS = token.expiresOnTimestamp - Date.now(); + return timeUntilExpirationMS <= MINIMUM_TOKEN_REFRESH_IN_MILLISECONDS; + } + + /** + * exposed for testing + */ + resetCache() { + this.cachedToken = null; + } + + /** + * exposed for testing + */ + _getToken(): Promise { + return fetchAzureKMSToken(); + } +} + +/** @internal */ +export const tokenCache = new AzureCredentialCache(); + +/** @internal */ +async function parseResponse(response: { + body: string; + status?: number; +}): Promise { + const { status, body: rawBody } = response; + + const body: { expires_in?: number; access_token?: string } = (() => { + try { + return JSON.parse(rawBody); + } catch { + throw new MongoCryptAzureKMSRequestError('Malformed JSON body in GET request.'); + } + })(); + + if (status !== 200) { + throw new MongoCryptAzureKMSRequestError('Unable to complete request.', body); + } + + if (!body.access_token) { + throw new MongoCryptAzureKMSRequestError( + 'Malformed response body - missing field `access_token`.' + ); + } + + if (!body.expires_in) { + throw new MongoCryptAzureKMSRequestError( + 'Malformed response body - missing field `expires_in`.' + ); + } + + const expiresInMS = Number(body.expires_in) * 1000; + if (Number.isNaN(expiresInMS)) { + throw new MongoCryptAzureKMSRequestError( + 'Malformed response body - unable to parse int from `expires_in` field.' + ); + } + + return { + accessToken: body.access_token, + expiresOnTimestamp: Date.now() + expiresInMS + }; +} + +/** + * @internal + * + * exposed for CSFLE + * [prose test 18](https://github.com/mongodb/specifications/tree/master/source/client-side-encryption/tests#azure-imds-credentials) + */ +export interface AzureKMSRequestOptions { + headers?: Document; + url?: URL | string; +} + +/** + * @internal + * + * parses any options provided by prose tests to `fetchAzureKMSToken` and merges them with + * the default values for headers and the request url. + */ +export function prepareRequest(options: AzureKMSRequestOptions): { + headers: Document; + url: URL; +} { + const url = new URL( + options.url?.toString() ?? 'http://169.254.169.254/metadata/identity/oauth2/token' + ); + + url.searchParams.append('api-version', '2018-02-01'); + url.searchParams.append('resource', 'https://vault.azure.net'); + + const headers = { ...options.headers, 'Content-Type': 'application/json', Metadata: true }; + return { headers, url }; +} + +/** + * @internal + * + * `AzureKMSRequestOptions` allows prose tests to modify the http request sent to the idms + * servers. This is required to simulate different server conditions. No options are expected to + * be set outside of tests. + * + * exposed for CSFLE + * [prose test 18](https://github.com/mongodb/specifications/tree/master/source/client-side-encryption/tests#azure-imds-credentials) + */ +export async function fetchAzureKMSToken( + options: AzureKMSRequestOptions = {} +): Promise { + const { headers, url } = prepareRequest(options); + try { + const response = await get(url, { headers }); + return await parseResponse(response); + } catch (error) { + if (error instanceof MongoCryptKMSRequestNetworkTimeoutError) { + throw new MongoCryptAzureKMSRequestError(`[Azure KMS] ${error.message}`); + } + throw error; + } +} + +/** + * @internal + * + * @throws Will reject with a `MongoCryptError` if the http request fails or the http response is malformed. + */ +export async function loadAzureCredentials(kmsProviders: KMSProviders): Promise { + const azure = await tokenCache.getToken(); + return { ...kmsProviders, azure }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/gcp.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/gcp.ts new file mode 100644 index 000000000..1415d216a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/gcp.ts @@ -0,0 +1,16 @@ +import { getGcpMetadata } from '../../deps'; +import { type KMSProviders } from '.'; + +/** @internal */ +export async function loadGCPCredentials(kmsProviders: KMSProviders): Promise { + const gcpMetadata = getGcpMetadata(); + + if ('kModuleError' in gcpMetadata) { + return kmsProviders; + } + + const { access_token: accessToken } = await gcpMetadata.instance<{ access_token: string }>({ + property: 'service-accounts/default/token' + }); + return { ...kmsProviders, gcp: { accessToken } }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/index.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/index.ts new file mode 100644 index 000000000..fb83e7b91 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/index.ts @@ -0,0 +1,168 @@ +import { loadAWSCredentials } from './aws'; +import { loadAzureCredentials } from './azure'; +import { loadGCPCredentials } from './gcp'; + +/** + * @public + */ +export type ClientEncryptionDataKeyProvider = 'aws' | 'azure' | 'gcp' | 'local' | 'kmip'; + +/** + * @public + * Configuration options that are used by specific KMS providers during key generation, encryption, and decryption. + */ +export interface KMSProviders { + /** + * Configuration options for using 'aws' as your KMS provider + */ + aws?: + | { + /** + * The access key used for the AWS KMS provider + */ + accessKeyId: string; + + /** + * The secret access key used for the AWS KMS provider + */ + secretAccessKey: string; + + /** + * An optional AWS session token that will be used as the + * X-Amz-Security-Token header for AWS requests. + */ + sessionToken?: string; + } + | Record; + + /** + * Configuration options for using 'local' as your KMS provider + */ + local?: { + /** + * The master key used to encrypt/decrypt data keys. + * A 96-byte long Buffer or base64 encoded string. + */ + key: Buffer | string; + }; + + /** + * Configuration options for using 'kmip' as your KMS provider + */ + kmip?: { + /** + * The output endpoint string. + * The endpoint consists of a hostname and port separated by a colon. + * E.g. "example.com:123". A port is always present. + */ + endpoint?: string; + }; + + /** + * Configuration options for using 'azure' as your KMS provider + */ + azure?: + | { + /** + * The tenant ID identifies the organization for the account + */ + tenantId: string; + + /** + * The client ID to authenticate a registered application + */ + clientId: string; + + /** + * The client secret to authenticate a registered application + */ + clientSecret: string; + + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * This is optional, and only needed if customer is using a non-commercial Azure instance + * (e.g. a government or China account, which use different URLs). + * Defaults to "login.microsoftonline.com" + */ + identityPlatformEndpoint?: string | undefined; + } + | { + /** + * If present, an access token to authenticate with Azure. + */ + accessToken: string; + } + | Record; + + /** + * Configuration options for using 'gcp' as your KMS provider + */ + gcp?: + | { + /** + * The service account email to authenticate + */ + email: string; + + /** + * A PKCS#8 encrypted key. This can either be a base64 string or a binary representation + */ + privateKey: string | Buffer; + + /** + * If present, a host with optional port. E.g. "example.com" or "example.com:443". + * Defaults to "oauth2.googleapis.com" + */ + endpoint?: string | undefined; + } + | { + /** + * If present, an access token to authenticate with GCP. + */ + accessToken: string; + } + | Record; +} + +/** + * Auto credential fetching should only occur when the provider is defined on the kmsProviders map + * and the settings are an empty object. + * + * This is distinct from a nullish provider key. + * + * @internal - exposed for testing purposes only + */ +export function isEmptyCredentials( + providerName: ClientEncryptionDataKeyProvider, + kmsProviders: KMSProviders +): boolean { + const provider = kmsProviders[providerName]; + if (provider == null) { + return false; + } + return typeof provider === 'object' && Object.keys(provider).length === 0; +} + +/** + * Load cloud provider credentials for the user provided KMS providers. + * Credentials will only attempt to get loaded if they do not exist + * and no existing credentials will get overwritten. + * + * @internal + */ +export async function refreshKMSCredentials(kmsProviders: KMSProviders): Promise { + let finalKMSProviders = kmsProviders; + + if (isEmptyCredentials('aws', kmsProviders)) { + finalKMSProviders = await loadAWSCredentials(finalKMSProviders); + } + + if (isEmptyCredentials('gcp', kmsProviders)) { + finalKMSProviders = await loadGCPCredentials(finalKMSProviders); + } + + if (isEmptyCredentials('azure', kmsProviders)) { + finalKMSProviders = await loadAzureCredentials(finalKMSProviders); + } + return finalKMSProviders; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/utils.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/utils.ts new file mode 100644 index 000000000..8d5362c69 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/providers/utils.ts @@ -0,0 +1,37 @@ +import * as http from 'http'; +import { clearTimeout, setTimeout } from 'timers'; + +import { MongoCryptKMSRequestNetworkTimeoutError } from '../errors'; + +/** + * @internal + */ +export function get( + url: URL | string, + options: http.RequestOptions = {} +): Promise<{ body: string; status: number | undefined }> { + return new Promise((resolve, reject) => { + /* eslint-disable prefer-const */ + let timeoutId: NodeJS.Timeout; + const request = http + .get(url, options, response => { + response.setEncoding('utf8'); + let body = ''; + response.on('data', chunk => (body += chunk)); + response.on('end', () => { + clearTimeout(timeoutId); + resolve({ status: response.statusCode, body }); + }); + }) + .on('error', error => { + clearTimeout(timeoutId); + reject(error); + }) + .end(); + timeoutId = setTimeout(() => { + request.destroy( + new MongoCryptKMSRequestNetworkTimeoutError(`request timed out after 10 seconds`) + ); + }, 10000); + }); +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/state_machine.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/state_machine.ts new file mode 100644 index 000000000..a4b2379fb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/client-side-encryption/state_machine.ts @@ -0,0 +1,531 @@ +import * as fs from 'fs/promises'; +import { type MongoCryptContext, type MongoCryptKMSRequest } from 'mongodb-client-encryption'; +import * as net from 'net'; +import * as tls from 'tls'; + +import { + type BSONSerializeOptions, + deserialize, + type Document, + pluckBSONSerializeOptions, + serialize +} from '../bson'; +import { type ProxyOptions } from '../cmap/connection'; +import { getSocks, type SocksLib } from '../deps'; +import { type MongoClient, type MongoClientOptions } from '../mongo_client'; +import { BufferPool, MongoDBCollectionNamespace, promiseWithResolvers } from '../utils'; +import { type DataKey } from './client_encryption'; +import { MongoCryptError } from './errors'; +import { type MongocryptdManager } from './mongocryptd_manager'; +import { type ClientEncryptionDataKeyProvider, type KMSProviders } from './providers'; + +let socks: SocksLib | null = null; +function loadSocks(): SocksLib { + if (socks == null) { + const socksImport = getSocks(); + if ('kModuleError' in socksImport) { + throw socksImport.kModuleError; + } + socks = socksImport; + } + return socks; +} + +// libmongocrypt states +const MONGOCRYPT_CTX_ERROR = 0; +const MONGOCRYPT_CTX_NEED_MONGO_COLLINFO = 1; +const MONGOCRYPT_CTX_NEED_MONGO_MARKINGS = 2; +const MONGOCRYPT_CTX_NEED_MONGO_KEYS = 3; +const MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS = 7; +const MONGOCRYPT_CTX_NEED_KMS = 4; +const MONGOCRYPT_CTX_READY = 5; +const MONGOCRYPT_CTX_DONE = 6; + +const HTTPS_PORT = 443; + +const stateToString = new Map([ + [MONGOCRYPT_CTX_ERROR, 'MONGOCRYPT_CTX_ERROR'], + [MONGOCRYPT_CTX_NEED_MONGO_COLLINFO, 'MONGOCRYPT_CTX_NEED_MONGO_COLLINFO'], + [MONGOCRYPT_CTX_NEED_MONGO_MARKINGS, 'MONGOCRYPT_CTX_NEED_MONGO_MARKINGS'], + [MONGOCRYPT_CTX_NEED_MONGO_KEYS, 'MONGOCRYPT_CTX_NEED_MONGO_KEYS'], + [MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS, 'MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS'], + [MONGOCRYPT_CTX_NEED_KMS, 'MONGOCRYPT_CTX_NEED_KMS'], + [MONGOCRYPT_CTX_READY, 'MONGOCRYPT_CTX_READY'], + [MONGOCRYPT_CTX_DONE, 'MONGOCRYPT_CTX_DONE'] +]); + +const INSECURE_TLS_OPTIONS = [ + 'tlsInsecure', + 'tlsAllowInvalidCertificates', + 'tlsAllowInvalidHostnames', + + // These options are disallowed by the spec, so we explicitly filter them out if provided, even + // though the StateMachine does not declare support for these options. + 'tlsDisableOCSPEndpointCheck', + 'tlsDisableCertificateRevocationCheck' +]; + +/** + * Helper function for logging. Enabled by setting the environment flag MONGODB_CRYPT_DEBUG. + * @param msg - Anything you want to be logged. + */ +function debug(msg: unknown) { + if (process.env.MONGODB_CRYPT_DEBUG) { + // eslint-disable-next-line no-console + console.error(msg); + } +} + +declare module 'mongodb-client-encryption' { + // the properties added to `MongoCryptContext` here are only used for the `StateMachine`'s + // execute method and are not part of the C++ bindings. + interface MongoCryptContext { + id: number; + document: Document; + ns: string; + } +} + +/** + * @public + * + * TLS options to use when connecting. The spec specifically calls out which insecure + * tls options are not allowed: + * + * - tlsAllowInvalidCertificates + * - tlsAllowInvalidHostnames + * - tlsInsecure + * + * These options are not included in the type, and are ignored if provided. + */ +export type ClientEncryptionTlsOptions = Pick< + MongoClientOptions, + 'tlsCAFile' | 'tlsCertificateKeyFile' | 'tlsCertificateKeyFilePassword' +>; + +/** @public */ +export type CSFLEKMSTlsOptions = { + aws?: ClientEncryptionTlsOptions; + gcp?: ClientEncryptionTlsOptions; + kmip?: ClientEncryptionTlsOptions; + local?: ClientEncryptionTlsOptions; + azure?: ClientEncryptionTlsOptions; +}; + +/** + * @internal + * + * An interface representing an object that can be passed to the `StateMachine.execute` method. + * + * Not all properties are required for all operations. + */ +export interface StateMachineExecutable { + _keyVaultNamespace: string; + _keyVaultClient: MongoClient; + askForKMSCredentials: () => Promise; + + /** only used for auto encryption */ + _metaDataClient?: MongoClient; + /** only used for auto encryption */ + _mongocryptdClient?: MongoClient; + /** only used for auto encryption */ + _mongocryptdManager?: MongocryptdManager; +} + +export type StateMachineOptions = { + /** socks5 proxy options, if set. */ + proxyOptions: ProxyOptions; + + /** TLS options for KMS requests, if set. */ + tlsOptions: CSFLEKMSTlsOptions; +} & Pick; + +/** + * @internal + * An internal class that executes across a MongoCryptContext until either + * a finishing state or an error is reached. Do not instantiate directly. + */ +export class StateMachine { + constructor( + private options: StateMachineOptions, + private bsonOptions = pluckBSONSerializeOptions(options) + ) {} + + /** + * Executes the state machine according to the specification + */ + async execute( + executor: StateMachineExecutable, + context: MongoCryptContext + ): Promise { + const keyVaultNamespace = executor._keyVaultNamespace; + const keyVaultClient = executor._keyVaultClient; + const metaDataClient = executor._metaDataClient; + const mongocryptdClient = executor._mongocryptdClient; + const mongocryptdManager = executor._mongocryptdManager; + let result: T | null = null; + + while (context.state !== MONGOCRYPT_CTX_DONE && context.state !== MONGOCRYPT_CTX_ERROR) { + debug(`[context#${context.id}] ${stateToString.get(context.state) || context.state}`); + + switch (context.state) { + case MONGOCRYPT_CTX_NEED_MONGO_COLLINFO: { + const filter = deserialize(context.nextMongoOperation()); + if (!metaDataClient) { + throw new MongoCryptError( + 'unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_COLLINFO but metadata client is undefined' + ); + } + const collInfo = await this.fetchCollectionInfo(metaDataClient, context.ns, filter); + + if (collInfo) { + context.addMongoOperationResponse(collInfo); + } + + context.finishMongoOperation(); + break; + } + + case MONGOCRYPT_CTX_NEED_MONGO_MARKINGS: { + const command = context.nextMongoOperation(); + if (!mongocryptdClient) { + throw new MongoCryptError( + 'unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_MARKINGS but mongocryptdClient is undefined' + ); + } + + // When we are using the shared library, we don't have a mongocryptd manager. + const markedCommand: Uint8Array = mongocryptdManager + ? await mongocryptdManager.withRespawn( + this.markCommand.bind(this, mongocryptdClient, context.ns, command) + ) + : await this.markCommand(mongocryptdClient, context.ns, command); + + context.addMongoOperationResponse(markedCommand); + context.finishMongoOperation(); + break; + } + + case MONGOCRYPT_CTX_NEED_MONGO_KEYS: { + const filter = context.nextMongoOperation(); + const keys = await this.fetchKeys(keyVaultClient, keyVaultNamespace, filter); + + if (keys.length === 0) { + // This is kind of a hack. For `rewrapManyDataKey`, we have tests that + // guarantee that when there are no matching keys, `rewrapManyDataKey` returns + // nothing. We also have tests for auto encryption that guarantee for `encrypt` + // we return an error when there are no matching keys. This error is generated in + // subsequent iterations of the state machine. + // Some apis (`encrypt`) throw if there are no filter matches and others (`rewrapManyDataKey`) + // do not. We set the result manually here, and let the state machine continue. `libmongocrypt` + // will inform us if we need to error by setting the state to `MONGOCRYPT_CTX_ERROR` but + // otherwise we'll return `{ v: [] }`. + result = { v: [] } as any as T; + } + for await (const key of keys) { + context.addMongoOperationResponse(serialize(key)); + } + + context.finishMongoOperation(); + + break; + } + + case MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS: { + const kmsProviders = await executor.askForKMSCredentials(); + context.provideKMSProviders(serialize(kmsProviders)); + break; + } + + case MONGOCRYPT_CTX_NEED_KMS: { + const requests = Array.from(this.requests(context)); + await Promise.all(requests); + + context.finishKMSRequests(); + break; + } + + case MONGOCRYPT_CTX_READY: { + const finalizedContext = context.finalize(); + // @ts-expect-error finalize can change the state, check for error + if (context.state === MONGOCRYPT_CTX_ERROR) { + const message = context.status.message || 'Finalization error'; + throw new MongoCryptError(message); + } + result = deserialize(finalizedContext, this.options) as T; + break; + } + + default: + throw new MongoCryptError(`Unknown state: ${context.state}`); + } + } + + if (context.state === MONGOCRYPT_CTX_ERROR || result == null) { + const message = context.status.message; + if (!message) { + debug( + `unidentifiable error in MongoCrypt - received an error status from \`libmongocrypt\` but received no error message.` + ); + } + throw new MongoCryptError( + message ?? + 'unidentifiable error in MongoCrypt - received an error status from `libmongocrypt` but received no error message.' + ); + } + + return result; + } + + /** + * Handles the request to the KMS service. Exposed for testing purposes. Do not directly invoke. + * @param kmsContext - A C++ KMS context returned from the bindings + * @returns A promise that resolves when the KMS reply has be fully parsed + */ + async kmsRequest(request: MongoCryptKMSRequest): Promise { + const parsedUrl = request.endpoint.split(':'); + const port = parsedUrl[1] != null ? Number.parseInt(parsedUrl[1], 10) : HTTPS_PORT; + const options: tls.ConnectionOptions & { host: string; port: number } = { + host: parsedUrl[0], + servername: parsedUrl[0], + port + }; + const message = request.message; + const buffer = new BufferPool(); + + const netSocket: net.Socket = new net.Socket(); + let socket: tls.TLSSocket; + + function destroySockets() { + for (const sock of [socket, netSocket]) { + if (sock) { + sock.removeAllListeners(); + sock.destroy(); + } + } + } + + function ontimeout() { + return new MongoCryptError('KMS request timed out'); + } + + function onerror(cause: Error) { + return new MongoCryptError('KMS request failed', { cause }); + } + + function onclose() { + return new MongoCryptError('KMS request closed'); + } + + const tlsOptions = this.options.tlsOptions; + if (tlsOptions) { + const kmsProvider = request.kmsProvider as ClientEncryptionDataKeyProvider; + const providerTlsOptions = tlsOptions[kmsProvider]; + if (providerTlsOptions) { + const error = this.validateTlsOptions(kmsProvider, providerTlsOptions); + if (error) { + throw error; + } + try { + await this.setTlsOptions(providerTlsOptions, options); + } catch (err) { + throw onerror(err); + } + } + } + + const { + promise: willConnect, + reject: rejectOnNetSocketError, + resolve: resolveOnNetSocketConnect + } = promiseWithResolvers(); + netSocket + .once('timeout', () => rejectOnNetSocketError(ontimeout())) + .once('error', err => rejectOnNetSocketError(onerror(err))) + .once('close', () => rejectOnNetSocketError(onclose())) + .once('connect', () => resolveOnNetSocketConnect()); + + try { + if (this.options.proxyOptions && this.options.proxyOptions.proxyHost) { + netSocket.connect({ + host: this.options.proxyOptions.proxyHost, + port: this.options.proxyOptions.proxyPort || 1080 + }); + await willConnect; + + try { + socks ??= loadSocks(); + options.socket = ( + await socks.SocksClient.createConnection({ + existing_socket: netSocket, + command: 'connect', + destination: { host: options.host, port: options.port }, + proxy: { + // host and port are ignored because we pass existing_socket + host: 'iLoveJavaScript', + port: 0, + type: 5, + userId: this.options.proxyOptions.proxyUsername, + password: this.options.proxyOptions.proxyPassword + } + }) + ).socket; + } catch (err) { + throw onerror(err); + } + } + + socket = tls.connect(options, () => { + socket.write(message); + }); + + const { + promise: willResolveKmsRequest, + reject: rejectOnTlsSocketError, + resolve + } = promiseWithResolvers(); + socket + .once('timeout', () => rejectOnTlsSocketError(ontimeout())) + .once('error', err => rejectOnTlsSocketError(onerror(err))) + .once('close', () => rejectOnTlsSocketError(onclose())) + .on('data', data => { + buffer.append(data); + while (request.bytesNeeded > 0 && buffer.length) { + const bytesNeeded = Math.min(request.bytesNeeded, buffer.length); + request.addResponse(buffer.read(bytesNeeded)); + } + + if (request.bytesNeeded <= 0) { + resolve(); + } + }); + await willResolveKmsRequest; + } finally { + // There's no need for any more activity on this socket at this point. + destroySockets(); + } + } + + *requests(context: MongoCryptContext) { + for ( + let request = context.nextKMSRequest(); + request != null; + request = context.nextKMSRequest() + ) { + yield this.kmsRequest(request); + } + } + + /** + * Validates the provided TLS options are secure. + * + * @param kmsProvider - The KMS provider name. + * @param tlsOptions - The client TLS options for the provider. + * + * @returns An error if any option is invalid. + */ + validateTlsOptions( + kmsProvider: string, + tlsOptions: ClientEncryptionTlsOptions + ): MongoCryptError | void { + const tlsOptionNames = Object.keys(tlsOptions); + for (const option of INSECURE_TLS_OPTIONS) { + if (tlsOptionNames.includes(option)) { + return new MongoCryptError(`Insecure TLS options prohibited for ${kmsProvider}: ${option}`); + } + } + } + + /** + * Sets only the valid secure TLS options. + * + * @param tlsOptions - The client TLS options for the provider. + * @param options - The existing connection options. + */ + async setTlsOptions( + tlsOptions: ClientEncryptionTlsOptions, + options: tls.ConnectionOptions + ): Promise { + if (tlsOptions.tlsCertificateKeyFile) { + const cert = await fs.readFile(tlsOptions.tlsCertificateKeyFile); + options.cert = options.key = cert; + } + if (tlsOptions.tlsCAFile) { + options.ca = await fs.readFile(tlsOptions.tlsCAFile); + } + if (tlsOptions.tlsCertificateKeyFilePassword) { + options.passphrase = tlsOptions.tlsCertificateKeyFilePassword; + } + } + + /** + * Fetches collection info for a provided namespace, when libmongocrypt + * enters the `MONGOCRYPT_CTX_NEED_MONGO_COLLINFO` state. The result is + * used to inform libmongocrypt of the schema associated with this + * namespace. Exposed for testing purposes. Do not directly invoke. + * + * @param client - A MongoClient connected to the topology + * @param ns - The namespace to list collections from + * @param filter - A filter for the listCollections command + * @param callback - Invoked with the info of the requested collection, or with an error + */ + async fetchCollectionInfo( + client: MongoClient, + ns: string, + filter: Document + ): Promise { + const { db } = MongoDBCollectionNamespace.fromString(ns); + + const collections = await client + .db(db) + .listCollections(filter, { + promoteLongs: false, + promoteValues: false + }) + .toArray(); + + const info = collections.length > 0 ? serialize(collections[0]) : null; + return info; + } + + /** + * Calls to the mongocryptd to provide markings for a command. + * Exposed for testing purposes. Do not directly invoke. + * @param client - A MongoClient connected to a mongocryptd + * @param ns - The namespace (database.collection) the command is being executed on + * @param command - The command to execute. + * @param callback - Invoked with the serialized and marked bson command, or with an error + */ + async markCommand(client: MongoClient, ns: string, command: Uint8Array): Promise { + const options = { promoteLongs: false, promoteValues: false }; + const { db } = MongoDBCollectionNamespace.fromString(ns); + const rawCommand = deserialize(command, options); + + const response = await client.db(db).command(rawCommand, options); + + return serialize(response, this.bsonOptions); + } + + /** + * Requests keys from the keyVault collection on the topology. + * Exposed for testing purposes. Do not directly invoke. + * @param client - A MongoClient connected to the topology + * @param keyVaultNamespace - The namespace (database.collection) of the keyVault Collection + * @param filter - The filter for the find query against the keyVault Collection + * @param callback - Invoked with the found keys, or with an error + */ + fetchKeys( + client: MongoClient, + keyVaultNamespace: string, + filter: Uint8Array + ): Promise> { + const { db: dbName, collection: collectionName } = + MongoDBCollectionNamespace.fromString(keyVaultNamespace); + + return client + .db(dbName) + .collection(collectionName, { readConcern: { level: 'majority' } }) + .find(deserialize(filter)) + .toArray(); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/auth_provider.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/auth_provider.ts new file mode 100644 index 000000000..e40c791ea --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/auth_provider.ts @@ -0,0 +1,77 @@ +import type { Document } from '../../bson'; +import { MongoRuntimeError } from '../../error'; +import type { HandshakeDocument } from '../connect'; +import type { Connection, ConnectionOptions } from '../connection'; +import type { MongoCredentials } from './mongo_credentials'; + +/** + * Context used during authentication + * @internal + */ +export class AuthContext { + /** The connection to authenticate */ + connection: Connection; + /** The credentials to use for authentication */ + credentials?: MongoCredentials; + /** If the context is for reauthentication. */ + reauthenticating = false; + /** The options passed to the `connect` method */ + options: ConnectionOptions; + + /** A response from an initial auth attempt, only some mechanisms use this (e.g, SCRAM) */ + response?: Document; + /** A random nonce generated for use in an authentication conversation */ + nonce?: Buffer; + + constructor( + connection: Connection, + credentials: MongoCredentials | undefined, + options: ConnectionOptions + ) { + this.connection = connection; + this.credentials = credentials; + this.options = options; + } +} + +/** + * Provider used during authentication. + * @internal + */ +export abstract class AuthProvider { + /** + * Prepare the handshake document before the initial handshake. + * + * @param handshakeDoc - The document used for the initial handshake on a connection + * @param authContext - Context for authentication flow + */ + async prepare( + handshakeDoc: HandshakeDocument, + _authContext: AuthContext + ): Promise { + return handshakeDoc; + } + + /** + * Authenticate + * + * @param context - A shared context for authentication flow + */ + abstract auth(context: AuthContext): Promise; + + /** + * Reauthenticate. + * @param context - The shared auth context. + */ + async reauth(context: AuthContext): Promise { + if (context.reauthenticating) { + throw new MongoRuntimeError('Reauthentication already in progress.'); + } + try { + context.reauthenticating = true; + await this.auth(context); + } finally { + context.reauthenticating = false; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/aws_temporary_credentials.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/aws_temporary_credentials.ts new file mode 100644 index 000000000..c93456a54 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/aws_temporary_credentials.ts @@ -0,0 +1,169 @@ +import { type AWSCredentials, getAwsCredentialProvider } from '../../deps'; +import { MongoAWSError } from '../../error'; +import { request } from '../../utils'; + +const AWS_RELATIVE_URI = 'http://169.254.170.2'; +const AWS_EC2_URI = 'http://169.254.169.254'; +const AWS_EC2_PATH = '/latest/meta-data/iam/security-credentials'; + +/** + * @internal + * This interface matches the final result of fetching temporary credentials manually, outlined + * in the spec [here](https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#ec2-endpoint). + * + * When we use the AWS SDK, we map the response from the SDK to conform to this interface. + */ +export interface AWSTempCredentials { + AccessKeyId?: string; + SecretAccessKey?: string; + Token?: string; + RoleArn?: string; + Expiration?: Date; +} + +/** + * @internal + * + * Fetches temporary AWS credentials. + */ +export abstract class AWSTemporaryCredentialProvider { + abstract getCredentials(): Promise; + private static _awsSDK: ReturnType; + protected static get awsSDK() { + AWSTemporaryCredentialProvider._awsSDK ??= getAwsCredentialProvider(); + return AWSTemporaryCredentialProvider._awsSDK; + } + + static get isAWSSDKInstalled(): boolean { + return !('kModuleError' in AWSTemporaryCredentialProvider.awsSDK); + } +} + +/** @internal */ +export class AWSSDKCredentialProvider extends AWSTemporaryCredentialProvider { + private _provider?: () => Promise; + /** + * The AWS SDK caches credentials automatically and handles refresh when the credentials have expired. + * To ensure this occurs, we need to cache the `provider` returned by the AWS sdk and re-use it when fetching credentials. + */ + private get provider(): () => Promise { + if ('kModuleError' in AWSTemporaryCredentialProvider.awsSDK) { + throw AWSTemporaryCredentialProvider.awsSDK.kModuleError; + } + if (this._provider) { + return this._provider; + } + let { AWS_STS_REGIONAL_ENDPOINTS = '', AWS_REGION = '' } = process.env; + AWS_STS_REGIONAL_ENDPOINTS = AWS_STS_REGIONAL_ENDPOINTS.toLowerCase(); + AWS_REGION = AWS_REGION.toLowerCase(); + + /** The option setting should work only for users who have explicit settings in their environment, the driver should not encode "defaults" */ + const awsRegionSettingsExist = + AWS_REGION.length !== 0 && AWS_STS_REGIONAL_ENDPOINTS.length !== 0; + + /** + * The following regions use the global AWS STS endpoint, sts.amazonaws.com, by default + * https://docs.aws.amazon.com/sdkref/latest/guide/feature-sts-regionalized-endpoints.html + */ + const LEGACY_REGIONS = new Set([ + 'ap-northeast-1', + 'ap-south-1', + 'ap-southeast-1', + 'ap-southeast-2', + 'aws-global', + 'ca-central-1', + 'eu-central-1', + 'eu-north-1', + 'eu-west-1', + 'eu-west-2', + 'eu-west-3', + 'sa-east-1', + 'us-east-1', + 'us-east-2', + 'us-west-1', + 'us-west-2' + ]); + /** + * If AWS_STS_REGIONAL_ENDPOINTS is set to regional, users are opting into the new behavior of respecting the region settings + * + * If AWS_STS_REGIONAL_ENDPOINTS is set to legacy, then "old" regions need to keep using the global setting. + * Technically the SDK gets this wrong, it reaches out to 'sts.us-east-1.amazonaws.com' when it should be 'sts.amazonaws.com'. + * That is not our bug to fix here. We leave that up to the SDK. + */ + const useRegionalSts = + AWS_STS_REGIONAL_ENDPOINTS === 'regional' || + (AWS_STS_REGIONAL_ENDPOINTS === 'legacy' && !LEGACY_REGIONS.has(AWS_REGION)); + + this._provider = + awsRegionSettingsExist && useRegionalSts + ? AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain({ + clientConfig: { region: AWS_REGION } + }) + : AWSTemporaryCredentialProvider.awsSDK.fromNodeProviderChain(); + + return this._provider; + } + + override async getCredentials(): Promise { + /* + * Creates a credential provider that will attempt to find credentials from the + * following sources (listed in order of precedence): + * + * - Environment variables exposed via process.env + * - SSO credentials from token cache + * - Web identity token credentials + * - Shared credentials and config ini files + * - The EC2/ECS Instance Metadata Service + */ + try { + const creds = await this.provider(); + return { + AccessKeyId: creds.accessKeyId, + SecretAccessKey: creds.secretAccessKey, + Token: creds.sessionToken, + Expiration: creds.expiration + }; + } catch (error) { + throw new MongoAWSError(error.message, { cause: error }); + } + } +} + +/** + * @internal + * Fetches credentials manually (without the AWS SDK), as outlined in the [Obtaining Credentials](https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#obtaining-credentials) + * section of the Auth spec. + */ +export class LegacyAWSTemporaryCredentialProvider extends AWSTemporaryCredentialProvider { + override async getCredentials(): Promise { + // If the environment variable AWS_CONTAINER_CREDENTIALS_RELATIVE_URI + // is set then drivers MUST assume that it was set by an AWS ECS agent + if (process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI) { + return await request( + `${AWS_RELATIVE_URI}${process.env.AWS_CONTAINER_CREDENTIALS_RELATIVE_URI}` + ); + } + + // Otherwise assume we are on an EC2 instance + + // get a token + const token = await request(`${AWS_EC2_URI}/latest/api/token`, { + method: 'PUT', + json: false, + headers: { 'X-aws-ec2-metadata-token-ttl-seconds': 30 } + }); + + // get role name + const roleName = await request(`${AWS_EC2_URI}/${AWS_EC2_PATH}`, { + json: false, + headers: { 'X-aws-ec2-metadata-token': token } + }); + + // get temp credentials + const creds = await request(`${AWS_EC2_URI}/${AWS_EC2_PATH}/${roleName}`, { + headers: { 'X-aws-ec2-metadata-token': token } + }); + + return creds; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/gssapi.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/gssapi.ts new file mode 100644 index 000000000..1f41d3915 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/gssapi.ts @@ -0,0 +1,202 @@ +import * as dns from 'dns'; + +import { getKerberos, type Kerberos, type KerberosClient } from '../../deps'; +import { MongoInvalidArgumentError, MongoMissingCredentialsError } from '../../error'; +import { ns } from '../../utils'; +import type { Connection } from '../connection'; +import { type AuthContext, AuthProvider } from './auth_provider'; + +/** @public */ +export const GSSAPICanonicalizationValue = Object.freeze({ + on: true, + off: false, + none: 'none', + forward: 'forward', + forwardAndReverse: 'forwardAndReverse' +} as const); + +/** @public */ +export type GSSAPICanonicalizationValue = + (typeof GSSAPICanonicalizationValue)[keyof typeof GSSAPICanonicalizationValue]; + +type MechanismProperties = { + CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue; + SERVICE_HOST?: string; + SERVICE_NAME?: string; + SERVICE_REALM?: string; +}; + +async function externalCommand( + connection: Connection, + command: ReturnType | ReturnType +): Promise<{ payload: string; conversationId: number }> { + const response = await connection.command(ns('$external.$cmd'), command); + return response as { payload: string; conversationId: number }; +} + +let krb: Kerberos; + +export class GSSAPI extends AuthProvider { + override async auth(authContext: AuthContext): Promise { + const { connection, credentials } = authContext; + if (credentials == null) { + throw new MongoMissingCredentialsError('Credentials required for GSSAPI authentication'); + } + + const { username } = credentials; + + const client = await makeKerberosClient(authContext); + + const payload = await client.step(''); + + const saslStartResponse = await externalCommand(connection, saslStart(payload)); + + const negotiatedPayload = await negotiate(client, 10, saslStartResponse.payload); + + const saslContinueResponse = await externalCommand( + connection, + saslContinue(negotiatedPayload, saslStartResponse.conversationId) + ); + + const finalizePayload = await finalize(client, username, saslContinueResponse.payload); + + await externalCommand(connection, { + saslContinue: 1, + conversationId: saslContinueResponse.conversationId, + payload: finalizePayload + }); + } +} + +async function makeKerberosClient(authContext: AuthContext): Promise { + const { hostAddress } = authContext.options; + const { credentials } = authContext; + if (!hostAddress || typeof hostAddress.host !== 'string' || !credentials) { + throw new MongoInvalidArgumentError( + 'Connection must have host and port and credentials defined.' + ); + } + + loadKrb(); + if ('kModuleError' in krb) { + throw krb['kModuleError']; + } + const { initializeClient } = krb; + + const { username, password } = credentials; + const mechanismProperties = credentials.mechanismProperties as MechanismProperties; + + const serviceName = mechanismProperties.SERVICE_NAME ?? 'mongodb'; + + const host = await performGSSAPICanonicalizeHostName(hostAddress.host, mechanismProperties); + + const initOptions = {}; + if (password != null) { + // TODO(NODE-5139): These do not match the typescript options in initializeClient + Object.assign(initOptions, { user: username, password: password }); + } + + const spnHost = mechanismProperties.SERVICE_HOST ?? host; + let spn = `${serviceName}${process.platform === 'win32' ? '/' : '@'}${spnHost}`; + if ('SERVICE_REALM' in mechanismProperties) { + spn = `${spn}@${mechanismProperties.SERVICE_REALM}`; + } + + return await initializeClient(spn, initOptions); +} + +function saslStart(payload: string) { + return { + saslStart: 1, + mechanism: 'GSSAPI', + payload, + autoAuthorize: 1 + } as const; +} + +function saslContinue(payload: string, conversationId: number) { + return { + saslContinue: 1, + conversationId, + payload + } as const; +} + +async function negotiate( + client: KerberosClient, + retries: number, + payload: string +): Promise { + try { + const response = await client.step(payload); + return response || ''; + } catch (error) { + if (retries === 0) { + // Retries exhausted, raise error + throw error; + } + // Adjust number of retries and call step again + return await negotiate(client, retries - 1, payload); + } +} + +async function finalize(client: KerberosClient, user: string, payload: string): Promise { + // GSS Client Unwrap + const response = await client.unwrap(payload); + return await client.wrap(response || '', { user }); +} + +export async function performGSSAPICanonicalizeHostName( + host: string, + mechanismProperties: MechanismProperties +): Promise { + const mode = mechanismProperties.CANONICALIZE_HOST_NAME; + if (!mode || mode === GSSAPICanonicalizationValue.none) { + return host; + } + + // If forward and reverse or true + if ( + mode === GSSAPICanonicalizationValue.on || + mode === GSSAPICanonicalizationValue.forwardAndReverse + ) { + // Perform the lookup of the ip address. + const { address } = await dns.promises.lookup(host); + + try { + // Perform a reverse ptr lookup on the ip address. + const results = await dns.promises.resolvePtr(address); + // If the ptr did not error but had no results, return the host. + return results.length > 0 ? results[0] : host; + } catch (error) { + // This can error as ptr records may not exist for all ips. In this case + // fallback to a cname lookup as dns.lookup() does not return the + // cname. + return await resolveCname(host); + } + } else { + // The case for forward is just to resolve the cname as dns.lookup() + // will not return it. + return await resolveCname(host); + } +} + +export async function resolveCname(host: string): Promise { + // Attempt to resolve the host name + try { + const results = await dns.promises.resolveCname(host); + // Get the first resolved host id + return results.length > 0 ? results[0] : host; + } catch { + return host; + } +} + +/** + * Load the Kerberos library. + */ +function loadKrb() { + if (!krb) { + krb = getKerberos(); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongo_credentials.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongo_credentials.ts new file mode 100644 index 000000000..c086afb4e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongo_credentials.ts @@ -0,0 +1,278 @@ +// Resolves the default auth mechanism according to +// Resolves the default auth mechanism according to +import type { Document } from '../../bson'; +import { + MongoAPIError, + MongoAzureError, + MongoInvalidArgumentError, + MongoMissingCredentialsError +} from '../../error'; +import { GSSAPICanonicalizationValue } from './gssapi'; +import type { OIDCRefreshFunction, OIDCRequestFunction } from './mongodb_oidc'; +import { AUTH_MECHS_AUTH_SRC_EXTERNAL, AuthMechanism } from './providers'; + +// https://github.com/mongodb/specifications/blob/master/source/auth/auth.rst +function getDefaultAuthMechanism(hello: Document | null): AuthMechanism { + if (hello) { + // If hello contains saslSupportedMechs, use scram-sha-256 + // if it is available, else scram-sha-1 + if (Array.isArray(hello.saslSupportedMechs)) { + return hello.saslSupportedMechs.includes(AuthMechanism.MONGODB_SCRAM_SHA256) + ? AuthMechanism.MONGODB_SCRAM_SHA256 + : AuthMechanism.MONGODB_SCRAM_SHA1; + } + + // Fallback to legacy selection method. If wire version >= 3, use scram-sha-1 + if (hello.maxWireVersion >= 3) { + return AuthMechanism.MONGODB_SCRAM_SHA1; + } + } + + // Default for wireprotocol < 3 + return AuthMechanism.MONGODB_CR; +} + +const ALLOWED_PROVIDER_NAMES: AuthMechanismProperties['PROVIDER_NAME'][] = ['aws', 'azure']; +const ALLOWED_HOSTS_ERROR = 'Auth mechanism property ALLOWED_HOSTS must be an array of strings.'; + +/** @internal */ +export const DEFAULT_ALLOWED_HOSTS = [ + '*.mongodb.net', + '*.mongodb-dev.net', + '*.mongodbgov.net', + 'localhost', + '127.0.0.1', + '::1' +]; + +/** Error for when the token audience is missing in the environment. */ +const TOKEN_AUDIENCE_MISSING_ERROR = + 'TOKEN_AUDIENCE must be set in the auth mechanism properties when PROVIDER_NAME is azure.'; + +/** @public */ +export interface AuthMechanismProperties extends Document { + SERVICE_HOST?: string; + SERVICE_NAME?: string; + SERVICE_REALM?: string; + CANONICALIZE_HOST_NAME?: GSSAPICanonicalizationValue; + AWS_SESSION_TOKEN?: string; + /** @experimental */ + REQUEST_TOKEN_CALLBACK?: OIDCRequestFunction; + /** @experimental */ + REFRESH_TOKEN_CALLBACK?: OIDCRefreshFunction; + /** @experimental */ + PROVIDER_NAME?: 'aws' | 'azure'; + /** @experimental */ + ALLOWED_HOSTS?: string[]; + /** @experimental */ + TOKEN_AUDIENCE?: string; +} + +/** @public */ +export interface MongoCredentialsOptions { + username?: string; + password: string; + source: string; + db?: string; + mechanism?: AuthMechanism; + mechanismProperties: AuthMechanismProperties; +} + +/** + * A representation of the credentials used by MongoDB + * @public + */ +export class MongoCredentials { + /** The username used for authentication */ + readonly username: string; + /** The password used for authentication */ + readonly password: string; + /** The database that the user should authenticate against */ + readonly source: string; + /** The method used to authenticate */ + readonly mechanism: AuthMechanism; + /** Special properties used by some types of auth mechanisms */ + readonly mechanismProperties: AuthMechanismProperties; + + constructor(options: MongoCredentialsOptions) { + this.username = options.username ?? ''; + this.password = options.password; + this.source = options.source; + if (!this.source && options.db) { + this.source = options.db; + } + this.mechanism = options.mechanism || AuthMechanism.MONGODB_DEFAULT; + this.mechanismProperties = options.mechanismProperties || {}; + + if (this.mechanism.match(/MONGODB-AWS/i)) { + if (!this.username && process.env.AWS_ACCESS_KEY_ID) { + this.username = process.env.AWS_ACCESS_KEY_ID; + } + + if (!this.password && process.env.AWS_SECRET_ACCESS_KEY) { + this.password = process.env.AWS_SECRET_ACCESS_KEY; + } + + if ( + this.mechanismProperties.AWS_SESSION_TOKEN == null && + process.env.AWS_SESSION_TOKEN != null + ) { + this.mechanismProperties = { + ...this.mechanismProperties, + AWS_SESSION_TOKEN: process.env.AWS_SESSION_TOKEN + }; + } + } + + if (this.mechanism === AuthMechanism.MONGODB_OIDC && !this.mechanismProperties.ALLOWED_HOSTS) { + this.mechanismProperties = { + ...this.mechanismProperties, + ALLOWED_HOSTS: DEFAULT_ALLOWED_HOSTS + }; + } + + Object.freeze(this.mechanismProperties); + Object.freeze(this); + } + + /** Determines if two MongoCredentials objects are equivalent */ + equals(other: MongoCredentials): boolean { + return ( + this.mechanism === other.mechanism && + this.username === other.username && + this.password === other.password && + this.source === other.source + ); + } + + /** + * If the authentication mechanism is set to "default", resolves the authMechanism + * based on the server version and server supported sasl mechanisms. + * + * @param hello - A hello response from the server + */ + resolveAuthMechanism(hello: Document | null): MongoCredentials { + // If the mechanism is not "default", then it does not need to be resolved + if (this.mechanism.match(/DEFAULT/i)) { + return new MongoCredentials({ + username: this.username, + password: this.password, + source: this.source, + mechanism: getDefaultAuthMechanism(hello), + mechanismProperties: this.mechanismProperties + }); + } + + return this; + } + + validate(): void { + if ( + (this.mechanism === AuthMechanism.MONGODB_GSSAPI || + this.mechanism === AuthMechanism.MONGODB_CR || + this.mechanism === AuthMechanism.MONGODB_PLAIN || + this.mechanism === AuthMechanism.MONGODB_SCRAM_SHA1 || + this.mechanism === AuthMechanism.MONGODB_SCRAM_SHA256) && + !this.username + ) { + throw new MongoMissingCredentialsError(`Username required for mechanism '${this.mechanism}'`); + } + + if (this.mechanism === AuthMechanism.MONGODB_OIDC) { + if (this.username && this.mechanismProperties.PROVIDER_NAME) { + throw new MongoInvalidArgumentError( + `username and PROVIDER_NAME may not be used together for mechanism '${this.mechanism}'.` + ); + } + + if ( + this.mechanismProperties.PROVIDER_NAME === 'azure' && + !this.mechanismProperties.TOKEN_AUDIENCE + ) { + throw new MongoAzureError(TOKEN_AUDIENCE_MISSING_ERROR); + } + + if ( + this.mechanismProperties.PROVIDER_NAME && + !ALLOWED_PROVIDER_NAMES.includes(this.mechanismProperties.PROVIDER_NAME) + ) { + throw new MongoInvalidArgumentError( + `Currently only a PROVIDER_NAME in ${ALLOWED_PROVIDER_NAMES.join( + ',' + )} is supported for mechanism '${this.mechanism}'.` + ); + } + + if ( + this.mechanismProperties.REFRESH_TOKEN_CALLBACK && + !this.mechanismProperties.REQUEST_TOKEN_CALLBACK + ) { + throw new MongoInvalidArgumentError( + `A REQUEST_TOKEN_CALLBACK must be provided when using a REFRESH_TOKEN_CALLBACK for mechanism '${this.mechanism}'` + ); + } + + if ( + !this.mechanismProperties.PROVIDER_NAME && + !this.mechanismProperties.REQUEST_TOKEN_CALLBACK + ) { + throw new MongoInvalidArgumentError( + `Either a PROVIDER_NAME or a REQUEST_TOKEN_CALLBACK must be specified for mechanism '${this.mechanism}'.` + ); + } + + if (this.mechanismProperties.ALLOWED_HOSTS) { + const hosts = this.mechanismProperties.ALLOWED_HOSTS; + if (!Array.isArray(hosts)) { + throw new MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR); + } + for (const host of hosts) { + if (typeof host !== 'string') { + throw new MongoInvalidArgumentError(ALLOWED_HOSTS_ERROR); + } + } + } + } + + if (AUTH_MECHS_AUTH_SRC_EXTERNAL.has(this.mechanism)) { + if (this.source != null && this.source !== '$external') { + // TODO(NODE-3485): Replace this with a MongoAuthValidationError + throw new MongoAPIError( + `Invalid source '${this.source}' for mechanism '${this.mechanism}' specified.` + ); + } + } + + if (this.mechanism === AuthMechanism.MONGODB_PLAIN && this.source == null) { + // TODO(NODE-3485): Replace this with a MongoAuthValidationError + throw new MongoAPIError('PLAIN Authentication Mechanism needs an auth source'); + } + + if (this.mechanism === AuthMechanism.MONGODB_X509 && this.password != null) { + if (this.password === '') { + Reflect.set(this, 'password', undefined); + return; + } + // TODO(NODE-3485): Replace this with a MongoAuthValidationError + throw new MongoAPIError(`Password not allowed for mechanism MONGODB-X509`); + } + + const canonicalization = this.mechanismProperties.CANONICALIZE_HOST_NAME ?? false; + if (!Object.values(GSSAPICanonicalizationValue).includes(canonicalization)) { + throw new MongoAPIError(`Invalid CANONICALIZE_HOST_NAME value: ${canonicalization}`); + } + } + + static merge( + creds: MongoCredentials | undefined, + options: Partial + ): MongoCredentials { + return new MongoCredentials({ + username: options.username ?? creds?.username ?? '', + password: options.password ?? creds?.password ?? '', + mechanism: options.mechanism ?? creds?.mechanism ?? AuthMechanism.MONGODB_DEFAULT, + mechanismProperties: options.mechanismProperties ?? creds?.mechanismProperties ?? {}, + source: options.source ?? options.db ?? creds?.source ?? 'admin' + }); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongocr.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongocr.ts new file mode 100644 index 000000000..acaab721e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongocr.ts @@ -0,0 +1,38 @@ +import * as crypto from 'crypto'; + +import { MongoMissingCredentialsError } from '../../error'; +import { ns } from '../../utils'; +import { type AuthContext, AuthProvider } from './auth_provider'; + +export class MongoCR extends AuthProvider { + override async auth(authContext: AuthContext): Promise { + const { connection, credentials } = authContext; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + + const { username, password, source } = credentials; + + const { nonce } = await connection.command(ns(`${source}.$cmd`), { getnonce: 1 }, undefined); + + const hashPassword = crypto + .createHash('md5') + .update(`${username}:mongo:${password}`, 'utf8') + .digest('hex'); + + // Final key + const key = crypto + .createHash('md5') + .update(`${nonce}${username}${hashPassword}`, 'utf8') + .digest('hex'); + + const authenticateCommand = { + authenticate: 1, + user: username, + nonce, + key + }; + + await connection.command(ns(`${source}.$cmd`), authenticateCommand, undefined); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_aws.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_aws.ts new file mode 100644 index 000000000..8fd1a320b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_aws.ts @@ -0,0 +1,191 @@ +import type { Binary, BSONSerializeOptions } from '../../bson'; +import * as BSON from '../../bson'; +import { aws4 } from '../../deps'; +import { + MongoCompatibilityError, + MongoMissingCredentialsError, + MongoRuntimeError +} from '../../error'; +import { ByteUtils, maxWireVersion, ns, randomBytes } from '../../utils'; +import { type AuthContext, AuthProvider } from './auth_provider'; +import { + AWSSDKCredentialProvider, + type AWSTempCredentials, + AWSTemporaryCredentialProvider, + LegacyAWSTemporaryCredentialProvider +} from './aws_temporary_credentials'; +import { MongoCredentials } from './mongo_credentials'; +import { AuthMechanism } from './providers'; + +const ASCII_N = 110; +const bsonOptions: BSONSerializeOptions = { + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: false, + bsonRegExp: false +}; + +interface AWSSaslContinuePayload { + a: string; + d: string; + t?: string; +} + +export class MongoDBAWS extends AuthProvider { + private credentialFetcher: AWSTemporaryCredentialProvider; + constructor() { + super(); + + this.credentialFetcher = AWSTemporaryCredentialProvider.isAWSSDKInstalled + ? new AWSSDKCredentialProvider() + : new LegacyAWSTemporaryCredentialProvider(); + } + + override async auth(authContext: AuthContext): Promise { + const { connection } = authContext; + if (!authContext.credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + + if ('kModuleError' in aws4) { + throw aws4['kModuleError']; + } + const { sign } = aws4; + + if (maxWireVersion(connection) < 9) { + throw new MongoCompatibilityError( + 'MONGODB-AWS authentication requires MongoDB version 4.4 or later' + ); + } + + if (!authContext.credentials.username) { + authContext.credentials = await makeTempCredentials( + authContext.credentials, + this.credentialFetcher + ); + } + + const { credentials } = authContext; + + const accessKeyId = credentials.username; + const secretAccessKey = credentials.password; + // Allow the user to specify an AWS session token for authentication with temporary credentials. + const sessionToken = credentials.mechanismProperties.AWS_SESSION_TOKEN; + + // If all three defined, include sessionToken, else include username and pass, else no credentials + const awsCredentials = + accessKeyId && secretAccessKey && sessionToken + ? { accessKeyId, secretAccessKey, sessionToken } + : accessKeyId && secretAccessKey + ? { accessKeyId, secretAccessKey } + : undefined; + + const db = credentials.source; + const nonce = await randomBytes(32); + + // All messages between MongoDB clients and servers are sent as BSON objects + // in the payload field of saslStart and saslContinue. + const saslStart = { + saslStart: 1, + mechanism: 'MONGODB-AWS', + payload: BSON.serialize({ r: nonce, p: ASCII_N }, bsonOptions) + }; + + const saslStartResponse = await connection.command(ns(`${db}.$cmd`), saslStart, undefined); + + const serverResponse = BSON.deserialize(saslStartResponse.payload.buffer, bsonOptions) as { + s: Binary; + h: string; + }; + const host = serverResponse.h; + const serverNonce = serverResponse.s.buffer; + if (serverNonce.length !== 64) { + // TODO(NODE-3483) + throw new MongoRuntimeError(`Invalid server nonce length ${serverNonce.length}, expected 64`); + } + + if (!ByteUtils.equals(serverNonce.subarray(0, nonce.byteLength), nonce)) { + // throw because the serverNonce's leading 32 bytes must equal the client nonce's 32 bytes + // https://github.com/mongodb/specifications/blob/875446db44aade414011731840831f38a6c668df/source/auth/auth.rst#id11 + + // TODO(NODE-3483) + throw new MongoRuntimeError('Server nonce does not begin with client nonce'); + } + + if (host.length < 1 || host.length > 255 || host.indexOf('..') !== -1) { + // TODO(NODE-3483) + throw new MongoRuntimeError(`Server returned an invalid host: "${host}"`); + } + + const body = 'Action=GetCallerIdentity&Version=2011-06-15'; + const options = sign( + { + method: 'POST', + host, + region: deriveRegion(serverResponse.h), + service: 'sts', + headers: { + 'Content-Type': 'application/x-www-form-urlencoded', + 'Content-Length': body.length, + 'X-MongoDB-Server-Nonce': ByteUtils.toBase64(serverNonce), + 'X-MongoDB-GS2-CB-Flag': 'n' + }, + path: '/', + body + }, + awsCredentials + ); + + const payload: AWSSaslContinuePayload = { + a: options.headers.Authorization, + d: options.headers['X-Amz-Date'] + }; + + if (sessionToken) { + payload.t = sessionToken; + } + + const saslContinue = { + saslContinue: 1, + conversationId: 1, + payload: BSON.serialize(payload, bsonOptions) + }; + + await connection.command(ns(`${db}.$cmd`), saslContinue, undefined); + } +} + +async function makeTempCredentials( + credentials: MongoCredentials, + awsCredentialFetcher: AWSTemporaryCredentialProvider +): Promise { + function makeMongoCredentialsFromAWSTemp(creds: AWSTempCredentials) { + // The AWS session token (creds.Token) may or may not be set. + if (!creds.AccessKeyId || !creds.SecretAccessKey) { + throw new MongoMissingCredentialsError('Could not obtain temporary MONGODB-AWS credentials'); + } + + return new MongoCredentials({ + username: creds.AccessKeyId, + password: creds.SecretAccessKey, + source: credentials.source, + mechanism: AuthMechanism.MONGODB_AWS, + mechanismProperties: { + AWS_SESSION_TOKEN: creds.Token + } + }); + } + const temporaryCredentials = await awsCredentialFetcher.getCredentials(); + + return makeMongoCredentialsFromAWSTemp(temporaryCredentials); +} + +function deriveRegion(host: string) { + const parts = host.split('.'); + if (parts.length === 1 || parts[1] === 'amazonaws') { + return 'us-east-1'; + } + + return parts[1]; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc.ts new file mode 100644 index 000000000..f3584c489 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc.ts @@ -0,0 +1,149 @@ +import type { Document } from 'bson'; + +import { MongoInvalidArgumentError, MongoMissingCredentialsError } from '../../error'; +import type { HandshakeDocument } from '../connect'; +import type { Connection } from '../connection'; +import { type AuthContext, AuthProvider } from './auth_provider'; +import type { MongoCredentials } from './mongo_credentials'; +import { AwsServiceWorkflow } from './mongodb_oidc/aws_service_workflow'; +import { AzureServiceWorkflow } from './mongodb_oidc/azure_service_workflow'; +import { CallbackWorkflow } from './mongodb_oidc/callback_workflow'; + +/** Error when credentials are missing. */ +const MISSING_CREDENTIALS_ERROR = 'AuthContext must provide credentials.'; + +/** + * @public + * @experimental + */ +export interface IdPServerInfo { + issuer: string; + clientId: string; + requestScopes?: string[]; +} + +/** + * @public + * @experimental + */ +export interface IdPServerResponse { + accessToken: string; + expiresInSeconds?: number; + refreshToken?: string; +} + +/** + * @public + * @experimental + */ +export interface OIDCCallbackContext { + refreshToken?: string; + timeoutSeconds?: number; + timeoutContext?: AbortSignal; + version: number; +} + +/** + * @public + * @experimental + */ +export type OIDCRequestFunction = ( + info: IdPServerInfo, + context: OIDCCallbackContext +) => Promise; + +/** + * @public + * @experimental + */ +export type OIDCRefreshFunction = ( + info: IdPServerInfo, + context: OIDCCallbackContext +) => Promise; + +type ProviderName = 'aws' | 'azure' | 'callback'; + +export interface Workflow { + /** + * All device workflows must implement this method in order to get the access + * token and then call authenticate with it. + */ + execute( + connection: Connection, + credentials: MongoCredentials, + reauthenticating: boolean, + response?: Document + ): Promise; + + /** + * Get the document to add for speculative authentication. + */ + speculativeAuth(credentials: MongoCredentials): Promise; +} + +/** @internal */ +export const OIDC_WORKFLOWS: Map = new Map(); +OIDC_WORKFLOWS.set('callback', new CallbackWorkflow()); +OIDC_WORKFLOWS.set('aws', new AwsServiceWorkflow()); +OIDC_WORKFLOWS.set('azure', new AzureServiceWorkflow()); + +/** + * OIDC auth provider. + * @experimental + */ +export class MongoDBOIDC extends AuthProvider { + /** + * Instantiate the auth provider. + */ + constructor() { + super(); + } + + /** + * Authenticate using OIDC + */ + override async auth(authContext: AuthContext): Promise { + const { connection, reauthenticating, response } = authContext; + const credentials = getCredentials(authContext); + const workflow = getWorkflow(credentials); + await workflow.execute(connection, credentials, reauthenticating, response); + } + + /** + * Add the speculative auth for the initial handshake. + */ + override async prepare( + handshakeDoc: HandshakeDocument, + authContext: AuthContext + ): Promise { + const credentials = getCredentials(authContext); + const workflow = getWorkflow(credentials); + const result = await workflow.speculativeAuth(credentials); + return { ...handshakeDoc, ...result }; + } +} + +/** + * Get credentials from the auth context, throwing if they do not exist. + */ +function getCredentials(authContext: AuthContext): MongoCredentials { + const { credentials } = authContext; + if (!credentials) { + throw new MongoMissingCredentialsError(MISSING_CREDENTIALS_ERROR); + } + return credentials; +} + +/** + * Gets either a device workflow or callback workflow. + */ +function getWorkflow(credentials: MongoCredentials): Workflow { + const providerName = credentials.mechanismProperties.PROVIDER_NAME; + const workflow = OIDC_WORKFLOWS.get(providerName || 'callback'); + if (!workflow) { + throw new MongoInvalidArgumentError( + `Could not load workflow for provider ${credentials.mechanismProperties.PROVIDER_NAME}` + ); + } + return workflow; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/aws_service_workflow.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/aws_service_workflow.ts new file mode 100644 index 000000000..984608d89 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/aws_service_workflow.ts @@ -0,0 +1,29 @@ +import * as fs from 'fs'; + +import { MongoAWSError } from '../../../error'; +import { ServiceWorkflow } from './service_workflow'; + +/** Error for when the token is missing in the environment. */ +const TOKEN_MISSING_ERROR = 'AWS_WEB_IDENTITY_TOKEN_FILE must be set in the environment.'; + +/** + * Device workflow implementation for AWS. + * + * @internal + */ +export class AwsServiceWorkflow extends ServiceWorkflow { + constructor() { + super(); + } + + /** + * Get the token from the environment. + */ + async getToken(): Promise { + const tokenFile = process.env.AWS_WEB_IDENTITY_TOKEN_FILE; + if (!tokenFile) { + throw new MongoAWSError(TOKEN_MISSING_ERROR); + } + return await fs.promises.readFile(tokenFile, 'utf8'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_service_workflow.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_service_workflow.ts new file mode 100644 index 000000000..fadbf5e9f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_service_workflow.ts @@ -0,0 +1,86 @@ +import { MongoAzureError } from '../../../error'; +import { request } from '../../../utils'; +import type { MongoCredentials } from '../mongo_credentials'; +import { AzureTokenCache } from './azure_token_cache'; +import { ServiceWorkflow } from './service_workflow'; + +/** Base URL for getting Azure tokens. */ +const AZURE_BASE_URL = + 'http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01'; + +/** Azure request headers. */ +const AZURE_HEADERS = Object.freeze({ Metadata: 'true', Accept: 'application/json' }); + +/** Invalid endpoint result error. */ +const ENDPOINT_RESULT_ERROR = + 'Azure endpoint did not return a value with only access_token and expires_in properties'; + +/** Error for when the token audience is missing in the environment. */ +const TOKEN_AUDIENCE_MISSING_ERROR = + 'TOKEN_AUDIENCE must be set in the auth mechanism properties when PROVIDER_NAME is azure.'; + +/** + * The Azure access token format. + * @internal + */ +export interface AzureAccessToken { + access_token: string; + expires_in: number; +} + +/** + * Device workflow implementation for Azure. + * + * @internal + */ +export class AzureServiceWorkflow extends ServiceWorkflow { + cache = new AzureTokenCache(); + + /** + * Get the token from the environment. + */ + async getToken(credentials?: MongoCredentials): Promise { + const tokenAudience = credentials?.mechanismProperties.TOKEN_AUDIENCE; + if (!tokenAudience) { + throw new MongoAzureError(TOKEN_AUDIENCE_MISSING_ERROR); + } + let token; + const entry = this.cache.getEntry(tokenAudience); + if (entry?.isValid()) { + token = entry.token; + } else { + this.cache.deleteEntry(tokenAudience); + const response = await getAzureTokenData(tokenAudience); + if (!isEndpointResultValid(response)) { + throw new MongoAzureError(ENDPOINT_RESULT_ERROR); + } + this.cache.addEntry(tokenAudience, response); + token = response.access_token; + } + return token; + } +} + +/** + * Hit the Azure endpoint to get the token data. + */ +async function getAzureTokenData(tokenAudience: string): Promise { + const url = `${AZURE_BASE_URL}&resource=${tokenAudience}`; + const data = await request(url, { + json: true, + headers: AZURE_HEADERS + }); + return data as AzureAccessToken; +} + +/** + * Determines if a result returned from the endpoint is valid. + * This means the result is not nullish, contains the access_token required field + * and the expires_in required field. + */ +function isEndpointResultValid( + token: unknown +): token is { access_token: unknown; expires_in: unknown } { + if (token == null || typeof token !== 'object') return false; + return 'access_token' in token && 'expires_in' in token; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_token_cache.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_token_cache.ts new file mode 100644 index 000000000..f68725120 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/azure_token_cache.ts @@ -0,0 +1,51 @@ +import type { AzureAccessToken } from './azure_service_workflow'; +import { Cache, ExpiringCacheEntry } from './cache'; + +/** @internal */ +export class AzureTokenEntry extends ExpiringCacheEntry { + token: string; + + /** + * Instantiate the entry. + */ + constructor(token: string, expiration: number) { + super(expiration); + this.token = token; + } +} + +/** + * A cache of access tokens from Azure. + * @internal + */ +export class AzureTokenCache extends Cache { + /** + * Add an entry to the cache. + */ + addEntry(tokenAudience: string, token: AzureAccessToken): AzureTokenEntry { + const entry = new AzureTokenEntry(token.access_token, token.expires_in); + this.entries.set(tokenAudience, entry); + return entry; + } + + /** + * Create a cache key. + */ + cacheKey(tokenAudience: string): string { + return tokenAudience; + } + + /** + * Delete an entry from the cache. + */ + deleteEntry(tokenAudience: string): void { + this.entries.delete(tokenAudience); + } + + /** + * Get an Azure token entry from the cache. + */ + getEntry(tokenAudience: string): AzureTokenEntry | undefined { + return this.entries.get(tokenAudience); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/cache.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/cache.ts new file mode 100644 index 000000000..e23685b3b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/cache.ts @@ -0,0 +1,63 @@ +/* 5 minutes in milliseconds */ +const EXPIRATION_BUFFER_MS = 300000; + +/** + * An entry in a cache that can expire in a certain amount of time. + */ +export abstract class ExpiringCacheEntry { + expiration: number; + + /** + * Create a new expiring token entry. + */ + constructor(expiration: number) { + this.expiration = this.expirationTime(expiration); + } + /** + * The entry is still valid if the expiration is more than + * 5 minutes from the expiration time. + */ + isValid() { + return this.expiration - Date.now() > EXPIRATION_BUFFER_MS; + } + + /** + * Get an expiration time in milliseconds past epoch. + */ + private expirationTime(expiresInSeconds: number): number { + return Date.now() + expiresInSeconds * 1000; + } +} + +/** + * Base class for OIDC caches. + */ +export abstract class Cache { + entries: Map; + + /** + * Create a new cache. + */ + constructor() { + this.entries = new Map(); + } + + /** + * Clear the cache. + */ + clear() { + this.entries.clear(); + } + + /** + * Implement the cache key for the token. + */ + abstract cacheKey(address: string, username: string, callbackHash: string): string; + + /** + * Create a cache key from the address and username. + */ + hashedCacheKey(address: string, username: string, callbackHash: string): string { + return JSON.stringify([address, username, callbackHash]); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_lock_cache.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_lock_cache.ts new file mode 100644 index 000000000..9518c9d38 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_lock_cache.ts @@ -0,0 +1,115 @@ +import { MongoInvalidArgumentError } from '../../../error'; +import type { Connection } from '../../connection'; +import type { MongoCredentials } from '../mongo_credentials'; +import type { + IdPServerInfo, + IdPServerResponse, + OIDCCallbackContext, + OIDCRefreshFunction, + OIDCRequestFunction +} from '../mongodb_oidc'; +import { Cache } from './cache'; + +/** Error message for when request callback is missing. */ +const REQUEST_CALLBACK_REQUIRED_ERROR = + 'Auth mechanism property REQUEST_TOKEN_CALLBACK is required.'; +/* Counter for function "hashes".*/ +let FN_HASH_COUNTER = 0; +/* No function present function */ +const NO_FUNCTION: OIDCRequestFunction = async () => ({ accessToken: 'test' }); +/* The map of function hashes */ +const FN_HASHES = new WeakMap(); +/* Put the no function hash in the map. */ +FN_HASHES.set(NO_FUNCTION, FN_HASH_COUNTER); + +/** + * An entry of callbacks in the cache. + */ +interface CallbacksEntry { + requestCallback: OIDCRequestFunction; + refreshCallback?: OIDCRefreshFunction; + callbackHash: string; +} + +/** + * A cache of request and refresh callbacks per server/user. + */ +export class CallbackLockCache extends Cache { + /** + * Get the callbacks for the connection and credentials. If an entry does not + * exist a new one will get set. + */ + getEntry(connection: Connection, credentials: MongoCredentials): CallbacksEntry { + const requestCallback = credentials.mechanismProperties.REQUEST_TOKEN_CALLBACK; + const refreshCallback = credentials.mechanismProperties.REFRESH_TOKEN_CALLBACK; + if (!requestCallback) { + throw new MongoInvalidArgumentError(REQUEST_CALLBACK_REQUIRED_ERROR); + } + const callbackHash = hashFunctions(requestCallback, refreshCallback); + const key = this.cacheKey(connection.address, credentials.username, callbackHash); + const entry = this.entries.get(key); + if (entry) { + return entry; + } + return this.addEntry(key, callbackHash, requestCallback, refreshCallback); + } + + /** + * Set locked callbacks on for connection and credentials. + */ + private addEntry( + key: string, + callbackHash: string, + requestCallback: OIDCRequestFunction, + refreshCallback?: OIDCRefreshFunction + ): CallbacksEntry { + const entry = { + requestCallback: withLock(requestCallback), + refreshCallback: refreshCallback ? withLock(refreshCallback) : undefined, + callbackHash: callbackHash + }; + this.entries.set(key, entry); + return entry; + } + + /** + * Create a cache key from the address and username. + */ + cacheKey(address: string, username: string, callbackHash: string): string { + return this.hashedCacheKey(address, username, callbackHash); + } +} + +/** + * Ensure the callback is only executed one at a time. + */ +function withLock(callback: OIDCRequestFunction | OIDCRefreshFunction) { + let lock: Promise = Promise.resolve(); + return async (info: IdPServerInfo, context: OIDCCallbackContext): Promise => { + await lock; + // eslint-disable-next-line github/no-then + lock = lock.then(() => callback(info, context)); + return await lock; + }; +} + +/** + * Get the hash string for the request and refresh functions. + */ +function hashFunctions(requestFn: OIDCRequestFunction, refreshFn?: OIDCRefreshFunction): string { + let requestHash = FN_HASHES.get(requestFn); + let refreshHash = FN_HASHES.get(refreshFn ?? NO_FUNCTION); + if (requestHash == null) { + // Create a new one for the function and put it in the map. + FN_HASH_COUNTER++; + requestHash = FN_HASH_COUNTER; + FN_HASHES.set(requestFn, FN_HASH_COUNTER); + } + if (refreshHash == null && refreshFn) { + // Create a new one for the function and put it in the map. + FN_HASH_COUNTER++; + refreshHash = FN_HASH_COUNTER; + FN_HASHES.set(refreshFn, FN_HASH_COUNTER); + } + return `${requestHash}-${refreshHash}`; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_workflow.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_workflow.ts new file mode 100644 index 000000000..9822fd1e5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/callback_workflow.ts @@ -0,0 +1,296 @@ +import { Binary, BSON, type Document } from 'bson'; + +import { MONGODB_ERROR_CODES, MongoError, MongoMissingCredentialsError } from '../../../error'; +import { ns } from '../../../utils'; +import type { Connection } from '../../connection'; +import type { MongoCredentials } from '../mongo_credentials'; +import type { + IdPServerInfo, + IdPServerResponse, + OIDCCallbackContext, + OIDCRefreshFunction, + OIDCRequestFunction, + Workflow +} from '../mongodb_oidc'; +import { AuthMechanism } from '../providers'; +import { CallbackLockCache } from './callback_lock_cache'; +import { TokenEntryCache } from './token_entry_cache'; + +/** The current version of OIDC implementation. */ +const OIDC_VERSION = 0; + +/** 5 minutes in seconds */ +const TIMEOUT_S = 300; + +/** Properties allowed on results of callbacks. */ +const RESULT_PROPERTIES = ['accessToken', 'expiresInSeconds', 'refreshToken']; + +/** Error message when the callback result is invalid. */ +const CALLBACK_RESULT_ERROR = + 'User provided OIDC callbacks must return a valid object with an accessToken.'; + +/** + * OIDC implementation of a callback based workflow. + * @internal + */ +export class CallbackWorkflow implements Workflow { + cache: TokenEntryCache; + callbackCache: CallbackLockCache; + + /** + * Instantiate the workflow + */ + constructor() { + this.cache = new TokenEntryCache(); + this.callbackCache = new CallbackLockCache(); + } + + /** + * Get the document to add for speculative authentication. This also needs + * to add a db field from the credentials source. + */ + async speculativeAuth(credentials: MongoCredentials): Promise { + const document = startCommandDocument(credentials); + document.db = credentials.source; + return { speculativeAuthenticate: document }; + } + + /** + * Execute the OIDC callback workflow. + */ + async execute( + connection: Connection, + credentials: MongoCredentials, + reauthenticating: boolean, + response?: Document + ): Promise { + // Get the callbacks with locks from the callback lock cache. + const { requestCallback, refreshCallback, callbackHash } = this.callbackCache.getEntry( + connection, + credentials + ); + // Look for an existing entry in the cache. + const entry = this.cache.getEntry(connection.address, credentials.username, callbackHash); + let result; + if (entry) { + // Reauthentication cannot use a token from the cache since the server has + // stated it is invalid by the request for reauthentication. + if (entry.isValid() && !reauthenticating) { + // Presence of a valid cache entry means we can skip to the finishing step. + result = await this.finishAuthentication( + connection, + credentials, + entry.tokenResult, + response?.speculativeAuthenticate?.conversationId + ); + } else { + // Presence of an expired cache entry means we must fetch a new one and + // then execute the final step. + const tokenResult = await this.fetchAccessToken( + connection, + credentials, + entry.serverInfo, + reauthenticating, + callbackHash, + requestCallback, + refreshCallback + ); + try { + result = await this.finishAuthentication( + connection, + credentials, + tokenResult, + reauthenticating ? undefined : response?.speculativeAuthenticate?.conversationId + ); + } catch (error) { + // If we are reauthenticating and this errors with reauthentication + // required, we need to do the entire process over again and clear + // the cache entry. + if ( + reauthenticating && + error instanceof MongoError && + error.code === MONGODB_ERROR_CODES.Reauthenticate + ) { + this.cache.deleteEntry(connection.address, credentials.username, callbackHash); + result = await this.execute(connection, credentials, reauthenticating); + } else { + throw error; + } + } + } + } else { + // No entry in the cache requires us to do all authentication steps + // from start to finish, including getting a fresh token for the cache. + const startDocument = await this.startAuthentication( + connection, + credentials, + reauthenticating, + response + ); + const conversationId = startDocument.conversationId; + const serverResult = BSON.deserialize(startDocument.payload.buffer) as IdPServerInfo; + const tokenResult = await this.fetchAccessToken( + connection, + credentials, + serverResult, + reauthenticating, + callbackHash, + requestCallback, + refreshCallback + ); + result = await this.finishAuthentication( + connection, + credentials, + tokenResult, + conversationId + ); + } + return result; + } + + /** + * Starts the callback authentication process. If there is a speculative + * authentication document from the initial handshake, then we will use that + * value to get the issuer, otherwise we will send the saslStart command. + */ + private async startAuthentication( + connection: Connection, + credentials: MongoCredentials, + reauthenticating: boolean, + response?: Document + ): Promise { + let result; + if (!reauthenticating && response?.speculativeAuthenticate) { + result = response.speculativeAuthenticate; + } else { + result = await connection.command( + ns(credentials.source), + startCommandDocument(credentials), + undefined + ); + } + return result; + } + + /** + * Finishes the callback authentication process. + */ + private async finishAuthentication( + connection: Connection, + credentials: MongoCredentials, + tokenResult: IdPServerResponse, + conversationId?: number + ): Promise { + const result = await connection.command( + ns(credentials.source), + finishCommandDocument(tokenResult.accessToken, conversationId), + undefined + ); + return result; + } + + /** + * Fetches an access token using either the request or refresh callbacks and + * puts it in the cache. + */ + private async fetchAccessToken( + connection: Connection, + credentials: MongoCredentials, + serverInfo: IdPServerInfo, + reauthenticating: boolean, + callbackHash: string, + requestCallback: OIDCRequestFunction, + refreshCallback?: OIDCRefreshFunction + ): Promise { + // Get the token from the cache. + const entry = this.cache.getEntry(connection.address, credentials.username, callbackHash); + let result; + const context: OIDCCallbackContext = { timeoutSeconds: TIMEOUT_S, version: OIDC_VERSION }; + // Check if there's a token in the cache. + if (entry) { + // If the cache entry is valid, return the token result. + if (entry.isValid() && !reauthenticating) { + return entry.tokenResult; + } + // If the cache entry is not valid, remove it from the cache and first attempt + // to use the refresh callback to get a new token. If no refresh callback + // exists, then fallback to the request callback. + if (refreshCallback) { + context.refreshToken = entry.tokenResult.refreshToken; + result = await refreshCallback(serverInfo, context); + } else { + result = await requestCallback(serverInfo, context); + } + } else { + // With no token in the cache we use the request callback. + result = await requestCallback(serverInfo, context); + } + // Validate that the result returned by the callback is acceptable. If it is not + // we must clear the token result from the cache. + if (isCallbackResultInvalid(result)) { + this.cache.deleteEntry(connection.address, credentials.username, callbackHash); + throw new MongoMissingCredentialsError(CALLBACK_RESULT_ERROR); + } + // Cleanup the cache. + this.cache.deleteExpiredEntries(); + // Put the new entry into the cache. + this.cache.addEntry( + connection.address, + credentials.username || '', + callbackHash, + result, + serverInfo + ); + return result; + } +} + +/** + * Generate the finishing command document for authentication. Will be a + * saslStart or saslContinue depending on the presence of a conversation id. + */ +function finishCommandDocument(token: string, conversationId?: number): Document { + if (conversationId != null && typeof conversationId === 'number') { + return { + saslContinue: 1, + conversationId: conversationId, + payload: new Binary(BSON.serialize({ jwt: token })) + }; + } + // saslContinue requires a conversationId in the command to be valid so in this + // case the server allows "step two" to actually be a saslStart with the token + // as the jwt since the use of the cached value has no correlating conversating + // on the particular connection. + return { + saslStart: 1, + mechanism: AuthMechanism.MONGODB_OIDC, + payload: new Binary(BSON.serialize({ jwt: token })) + }; +} + +/** + * Determines if a result returned from a request or refresh callback + * function is invalid. This means the result is nullish, doesn't contain + * the accessToken required field, and does not contain extra fields. + */ +function isCallbackResultInvalid(tokenResult: unknown): boolean { + if (tokenResult == null || typeof tokenResult !== 'object') return true; + if (!('accessToken' in tokenResult)) return true; + return !Object.getOwnPropertyNames(tokenResult).every(prop => RESULT_PROPERTIES.includes(prop)); +} + +/** + * Generate the saslStart command document. + */ +function startCommandDocument(credentials: MongoCredentials): Document { + const payload: Document = {}; + if (credentials.username) { + payload.n = credentials.username; + } + return { + saslStart: 1, + autoAuthorize: 1, + mechanism: AuthMechanism.MONGODB_OIDC, + payload: new Binary(BSON.serialize(payload)) + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/service_workflow.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/service_workflow.ts new file mode 100644 index 000000000..dcf086b80 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/service_workflow.ts @@ -0,0 +1,49 @@ +import { BSON, type Document } from 'bson'; + +import { ns } from '../../../utils'; +import type { Connection } from '../../connection'; +import type { MongoCredentials } from '../mongo_credentials'; +import type { Workflow } from '../mongodb_oidc'; +import { AuthMechanism } from '../providers'; + +/** + * Common behaviour for OIDC device workflows. + * @internal + */ +export abstract class ServiceWorkflow implements Workflow { + /** + * Execute the workflow. Looks for AWS_WEB_IDENTITY_TOKEN_FILE in the environment + * and then attempts to read the token from that path. + */ + async execute(connection: Connection, credentials: MongoCredentials): Promise { + const token = await this.getToken(credentials); + const command = commandDocument(token); + return await connection.command(ns(credentials.source), command, undefined); + } + + /** + * Get the document to add for speculative authentication. + */ + async speculativeAuth(credentials: MongoCredentials): Promise { + const token = await this.getToken(credentials); + const document = commandDocument(token); + document.db = credentials.source; + return { speculativeAuthenticate: document }; + } + + /** + * Get the token from the environment or endpoint. + */ + abstract getToken(credentials: MongoCredentials): Promise; +} + +/** + * Create the saslStart command document. + */ +export function commandDocument(token: string): Document { + return { + saslStart: 1, + mechanism: AuthMechanism.MONGODB_OIDC, + payload: BSON.serialize({ jwt: token }) + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_entry_cache.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_entry_cache.ts new file mode 100644 index 000000000..1b5b9de33 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/mongodb_oidc/token_entry_cache.ts @@ -0,0 +1,77 @@ +import type { IdPServerInfo, IdPServerResponse } from '../mongodb_oidc'; +import { Cache, ExpiringCacheEntry } from './cache'; + +/* Default expiration is now for when no expiration provided */ +const DEFAULT_EXPIRATION_SECS = 0; + +/** @internal */ +export class TokenEntry extends ExpiringCacheEntry { + tokenResult: IdPServerResponse; + serverInfo: IdPServerInfo; + + /** + * Instantiate the entry. + */ + constructor(tokenResult: IdPServerResponse, serverInfo: IdPServerInfo, expiration: number) { + super(expiration); + this.tokenResult = tokenResult; + this.serverInfo = serverInfo; + } +} + +/** + * Cache of OIDC token entries. + * @internal + */ +export class TokenEntryCache extends Cache { + /** + * Set an entry in the token cache. + */ + addEntry( + address: string, + username: string, + callbackHash: string, + tokenResult: IdPServerResponse, + serverInfo: IdPServerInfo + ): TokenEntry { + const entry = new TokenEntry( + tokenResult, + serverInfo, + tokenResult.expiresInSeconds ?? DEFAULT_EXPIRATION_SECS + ); + this.entries.set(this.cacheKey(address, username, callbackHash), entry); + return entry; + } + + /** + * Delete an entry from the cache. + */ + deleteEntry(address: string, username: string, callbackHash: string): void { + this.entries.delete(this.cacheKey(address, username, callbackHash)); + } + + /** + * Get an entry from the cache. + */ + getEntry(address: string, username: string, callbackHash: string): TokenEntry | undefined { + return this.entries.get(this.cacheKey(address, username, callbackHash)); + } + + /** + * Delete all expired entries from the cache. + */ + deleteExpiredEntries(): void { + for (const [key, entry] of this.entries) { + if (!entry.isValid()) { + this.entries.delete(key); + } + } + } + + /** + * Create a cache key from the address and username. + */ + cacheKey(address: string, username: string, callbackHash: string): string { + return this.hashedCacheKey(address, username, callbackHash); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/plain.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/plain.ts new file mode 100644 index 000000000..f5a438631 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/plain.ts @@ -0,0 +1,25 @@ +import { Binary } from '../../bson'; +import { MongoMissingCredentialsError } from '../../error'; +import { ns } from '../../utils'; +import { type AuthContext, AuthProvider } from './auth_provider'; + +export class Plain extends AuthProvider { + override async auth(authContext: AuthContext): Promise { + const { connection, credentials } = authContext; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + + const { username, password } = credentials; + + const payload = new Binary(Buffer.from(`\x00${username}\x00${password}`)); + const command = { + saslStart: 1, + mechanism: 'PLAIN', + payload: payload, + autoAuthorize: 1 + }; + + await connection.command(ns('$external.$cmd'), command, undefined); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/providers.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/providers.ts new file mode 100644 index 000000000..d01c06324 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/providers.ts @@ -0,0 +1,24 @@ +/** @public */ +export const AuthMechanism = Object.freeze({ + MONGODB_AWS: 'MONGODB-AWS', + MONGODB_CR: 'MONGODB-CR', + MONGODB_DEFAULT: 'DEFAULT', + MONGODB_GSSAPI: 'GSSAPI', + MONGODB_PLAIN: 'PLAIN', + MONGODB_SCRAM_SHA1: 'SCRAM-SHA-1', + MONGODB_SCRAM_SHA256: 'SCRAM-SHA-256', + MONGODB_X509: 'MONGODB-X509', + /** @experimental */ + MONGODB_OIDC: 'MONGODB-OIDC' +} as const); + +/** @public */ +export type AuthMechanism = (typeof AuthMechanism)[keyof typeof AuthMechanism]; + +/** @internal */ +export const AUTH_MECHS_AUTH_SRC_EXTERNAL = new Set([ + AuthMechanism.MONGODB_GSSAPI, + AuthMechanism.MONGODB_AWS, + AuthMechanism.MONGODB_OIDC, + AuthMechanism.MONGODB_X509 +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/scram.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/scram.ts new file mode 100644 index 000000000..b10b2007d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/scram.ts @@ -0,0 +1,344 @@ +import { saslprep } from '@mongodb-js/saslprep'; +import * as crypto from 'crypto'; + +import { Binary, type Document } from '../../bson'; +import { + MongoInvalidArgumentError, + MongoMissingCredentialsError, + MongoRuntimeError +} from '../../error'; +import { ns, randomBytes } from '../../utils'; +import type { HandshakeDocument } from '../connect'; +import { type AuthContext, AuthProvider } from './auth_provider'; +import type { MongoCredentials } from './mongo_credentials'; +import { AuthMechanism } from './providers'; + +type CryptoMethod = 'sha1' | 'sha256'; + +class ScramSHA extends AuthProvider { + cryptoMethod: CryptoMethod; + + constructor(cryptoMethod: CryptoMethod) { + super(); + this.cryptoMethod = cryptoMethod || 'sha1'; + } + + override async prepare( + handshakeDoc: HandshakeDocument, + authContext: AuthContext + ): Promise { + const cryptoMethod = this.cryptoMethod; + const credentials = authContext.credentials; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + + const nonce = await randomBytes(24); + // store the nonce for later use + authContext.nonce = nonce; + + const request = { + ...handshakeDoc, + speculativeAuthenticate: { + ...makeFirstMessage(cryptoMethod, credentials, nonce), + db: credentials.source + } + }; + + return request; + } + + override async auth(authContext: AuthContext) { + const { reauthenticating, response } = authContext; + if (response?.speculativeAuthenticate && !reauthenticating) { + return await continueScramConversation( + this.cryptoMethod, + response.speculativeAuthenticate, + authContext + ); + } + return await executeScram(this.cryptoMethod, authContext); + } +} + +function cleanUsername(username: string) { + return username.replace('=', '=3D').replace(',', '=2C'); +} + +function clientFirstMessageBare(username: string, nonce: Buffer) { + // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8. + // Since the username is not sasl-prep-d, we need to do this here. + return Buffer.concat([ + Buffer.from('n=', 'utf8'), + Buffer.from(username, 'utf8'), + Buffer.from(',r=', 'utf8'), + Buffer.from(nonce.toString('base64'), 'utf8') + ]); +} + +function makeFirstMessage( + cryptoMethod: CryptoMethod, + credentials: MongoCredentials, + nonce: Buffer +) { + const username = cleanUsername(credentials.username); + const mechanism = + cryptoMethod === 'sha1' ? AuthMechanism.MONGODB_SCRAM_SHA1 : AuthMechanism.MONGODB_SCRAM_SHA256; + + // NOTE: This is done b/c Javascript uses UTF-16, but the server is hashing in UTF-8. + // Since the username is not sasl-prep-d, we need to do this here. + return { + saslStart: 1, + mechanism, + payload: new Binary( + Buffer.concat([Buffer.from('n,,', 'utf8'), clientFirstMessageBare(username, nonce)]) + ), + autoAuthorize: 1, + options: { skipEmptyExchange: true } + }; +} + +async function executeScram(cryptoMethod: CryptoMethod, authContext: AuthContext): Promise { + const { connection, credentials } = authContext; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + if (!authContext.nonce) { + throw new MongoInvalidArgumentError('AuthContext must contain a valid nonce property'); + } + const nonce = authContext.nonce; + const db = credentials.source; + + const saslStartCmd = makeFirstMessage(cryptoMethod, credentials, nonce); + const response = await connection.command(ns(`${db}.$cmd`), saslStartCmd, undefined); + await continueScramConversation(cryptoMethod, response, authContext); +} + +async function continueScramConversation( + cryptoMethod: CryptoMethod, + response: Document, + authContext: AuthContext +): Promise { + const connection = authContext.connection; + const credentials = authContext.credentials; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + if (!authContext.nonce) { + throw new MongoInvalidArgumentError('Unable to continue SCRAM without valid nonce'); + } + const nonce = authContext.nonce; + + const db = credentials.source; + const username = cleanUsername(credentials.username); + const password = credentials.password; + + const processedPassword = + cryptoMethod === 'sha256' ? saslprep(password) : passwordDigest(username, password); + + const payload: Binary = Buffer.isBuffer(response.payload) + ? new Binary(response.payload) + : response.payload; + + const dict = parsePayload(payload); + + const iterations = parseInt(dict.i, 10); + if (iterations && iterations < 4096) { + // TODO(NODE-3483) + throw new MongoRuntimeError(`Server returned an invalid iteration count ${iterations}`); + } + + const salt = dict.s; + const rnonce = dict.r; + if (rnonce.startsWith('nonce')) { + // TODO(NODE-3483) + throw new MongoRuntimeError(`Server returned an invalid nonce: ${rnonce}`); + } + + // Set up start of proof + const withoutProof = `c=biws,r=${rnonce}`; + const saltedPassword = HI( + processedPassword, + Buffer.from(salt, 'base64'), + iterations, + cryptoMethod + ); + + const clientKey = HMAC(cryptoMethod, saltedPassword, 'Client Key'); + const serverKey = HMAC(cryptoMethod, saltedPassword, 'Server Key'); + const storedKey = H(cryptoMethod, clientKey); + const authMessage = [ + clientFirstMessageBare(username, nonce), + payload.toString('utf8'), + withoutProof + ].join(','); + + const clientSignature = HMAC(cryptoMethod, storedKey, authMessage); + const clientProof = `p=${xor(clientKey, clientSignature)}`; + const clientFinal = [withoutProof, clientProof].join(','); + + const serverSignature = HMAC(cryptoMethod, serverKey, authMessage); + const saslContinueCmd = { + saslContinue: 1, + conversationId: response.conversationId, + payload: new Binary(Buffer.from(clientFinal)) + }; + + const r = await connection.command(ns(`${db}.$cmd`), saslContinueCmd, undefined); + const parsedResponse = parsePayload(r.payload); + + if (!compareDigest(Buffer.from(parsedResponse.v, 'base64'), serverSignature)) { + throw new MongoRuntimeError('Server returned an invalid signature'); + } + + if (r.done !== false) { + // If the server sends r.done === true we can save one RTT + return; + } + + const retrySaslContinueCmd = { + saslContinue: 1, + conversationId: r.conversationId, + payload: Buffer.alloc(0) + }; + + await connection.command(ns(`${db}.$cmd`), retrySaslContinueCmd, undefined); +} + +function parsePayload(payload: Binary) { + const payloadStr = payload.toString('utf8'); + const dict: Document = {}; + const parts = payloadStr.split(','); + for (let i = 0; i < parts.length; i++) { + const valueParts = (parts[i].match(/^([^=]*)=(.*)$/) ?? []).slice(1); + dict[valueParts[0]] = valueParts[1]; + } + return dict; +} + +function passwordDigest(username: string, password: string) { + if (typeof username !== 'string') { + throw new MongoInvalidArgumentError('Username must be a string'); + } + + if (typeof password !== 'string') { + throw new MongoInvalidArgumentError('Password must be a string'); + } + + if (password.length === 0) { + throw new MongoInvalidArgumentError('Password cannot be empty'); + } + + let md5: crypto.Hash; + try { + md5 = crypto.createHash('md5'); + } catch (err) { + if (crypto.getFips()) { + // This error is (slightly) more helpful than what comes from OpenSSL directly, e.g. + // 'Error: error:060800C8:digital envelope routines:EVP_DigestInit_ex:disabled for FIPS' + throw new Error('Auth mechanism SCRAM-SHA-1 is not supported in FIPS mode'); + } + throw err; + } + md5.update(`${username}:mongo:${password}`, 'utf8'); + return md5.digest('hex'); +} + +// XOR two buffers +function xor(a: Buffer, b: Buffer) { + if (!Buffer.isBuffer(a)) { + a = Buffer.from(a); + } + + if (!Buffer.isBuffer(b)) { + b = Buffer.from(b); + } + + const length = Math.max(a.length, b.length); + const res = []; + + for (let i = 0; i < length; i += 1) { + res.push(a[i] ^ b[i]); + } + + return Buffer.from(res).toString('base64'); +} + +function H(method: CryptoMethod, text: Buffer) { + return crypto.createHash(method).update(text).digest(); +} + +function HMAC(method: CryptoMethod, key: Buffer, text: Buffer | string) { + return crypto.createHmac(method, key).update(text).digest(); +} + +interface HICache { + [key: string]: Buffer; +} + +let _hiCache: HICache = {}; +let _hiCacheCount = 0; +function _hiCachePurge() { + _hiCache = {}; + _hiCacheCount = 0; +} + +const hiLengthMap = { + sha256: 32, + sha1: 20 +}; + +function HI(data: string, salt: Buffer, iterations: number, cryptoMethod: CryptoMethod) { + // omit the work if already generated + const key = [data, salt.toString('base64'), iterations].join('_'); + if (_hiCache[key] != null) { + return _hiCache[key]; + } + + // generate the salt + const saltedData = crypto.pbkdf2Sync( + data, + salt, + iterations, + hiLengthMap[cryptoMethod], + cryptoMethod + ); + + // cache a copy to speed up the next lookup, but prevent unbounded cache growth + if (_hiCacheCount >= 200) { + _hiCachePurge(); + } + + _hiCache[key] = saltedData; + _hiCacheCount += 1; + return saltedData; +} + +function compareDigest(lhs: Buffer, rhs: Uint8Array) { + if (lhs.length !== rhs.length) { + return false; + } + + if (typeof crypto.timingSafeEqual === 'function') { + return crypto.timingSafeEqual(lhs, rhs); + } + + let result = 0; + for (let i = 0; i < lhs.length; i++) { + result |= lhs[i] ^ rhs[i]; + } + + return result === 0; +} + +export class ScramSHA1 extends ScramSHA { + constructor() { + super('sha1'); + } +} + +export class ScramSHA256 extends ScramSHA { + constructor() { + super('sha256'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/x509.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/x509.ts new file mode 100644 index 000000000..ec4c00079 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/auth/x509.ts @@ -0,0 +1,43 @@ +import type { Document } from '../../bson'; +import { MongoMissingCredentialsError } from '../../error'; +import { ns } from '../../utils'; +import type { HandshakeDocument } from '../connect'; +import { type AuthContext, AuthProvider } from './auth_provider'; +import type { MongoCredentials } from './mongo_credentials'; + +export class X509 extends AuthProvider { + override async prepare( + handshakeDoc: HandshakeDocument, + authContext: AuthContext + ): Promise { + const { credentials } = authContext; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + return { ...handshakeDoc, speculativeAuthenticate: x509AuthenticateCommand(credentials) }; + } + + override async auth(authContext: AuthContext) { + const connection = authContext.connection; + const credentials = authContext.credentials; + if (!credentials) { + throw new MongoMissingCredentialsError('AuthContext must provide credentials.'); + } + const response = authContext.response; + + if (response?.speculativeAuthenticate) { + return; + } + + await connection.command(ns('$external.$cmd'), x509AuthenticateCommand(credentials), undefined); + } +} + +function x509AuthenticateCommand(credentials: MongoCredentials) { + const command: Document = { authenticate: 1, mechanism: 'MONGODB-X509' }; + if (credentials.username) { + command.user = credentials.username; + } + + return command; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/command_monitoring_events.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/command_monitoring_events.ts new file mode 100644 index 000000000..002ecf2c8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/command_monitoring_events.ts @@ -0,0 +1,343 @@ +import { type Document, type ObjectId } from '../bson'; +import { + COMMAND_FAILED, + COMMAND_STARTED, + COMMAND_SUCCEEDED, + LEGACY_HELLO_COMMAND, + LEGACY_HELLO_COMMAND_CAMEL_CASE +} from '../constants'; +import { calculateDurationInMs, deepCopy } from '../utils'; +import { OpMsgRequest, type OpQueryRequest, type WriteProtocolMessageType } from './commands'; +import type { Connection } from './connection'; + +/** + * An event indicating the start of a given command + * @public + * @category Event + */ +export class CommandStartedEvent { + commandObj?: Document; + requestId: number; + databaseName: string; + commandName: string; + command: Document; + address: string; + /** Driver generated connection id */ + connectionId?: string | number; + /** + * Server generated connection id + * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" + * from the server on 4.2+. + */ + serverConnectionId: bigint | null; + serviceId?: ObjectId; + /** @internal */ + name = COMMAND_STARTED; + + /** + * Create a started event + * + * @internal + * @param pool - the pool that originated the command + * @param command - the command + */ + constructor( + connection: Connection, + command: WriteProtocolMessageType, + serverConnectionId: bigint | null + ) { + const cmd = extractCommand(command); + const commandName = extractCommandName(cmd); + const { address, connectionId, serviceId } = extractConnectionDetails(connection); + + // TODO: remove in major revision, this is not spec behavior + if (SENSITIVE_COMMANDS.has(commandName)) { + this.commandObj = {}; + this.commandObj[commandName] = true; + } + + this.address = address; + this.connectionId = connectionId; + this.serviceId = serviceId; + this.requestId = command.requestId; + this.databaseName = command.databaseName; + this.commandName = commandName; + this.command = maybeRedact(commandName, cmd, cmd); + this.serverConnectionId = serverConnectionId; + } + + /* @internal */ + get hasServiceId(): boolean { + return !!this.serviceId; + } +} + +/** + * An event indicating the success of a given command + * @public + * @category Event + */ +export class CommandSucceededEvent { + address: string; + /** Driver generated connection id */ + connectionId?: string | number; + /** + * Server generated connection id + * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+. + */ + serverConnectionId: bigint | null; + requestId: number; + duration: number; + commandName: string; + reply: unknown; + serviceId?: ObjectId; + /** @internal */ + name = COMMAND_SUCCEEDED; + + /** + * Create a succeeded event + * + * @internal + * @param pool - the pool that originated the command + * @param command - the command + * @param reply - the reply for this command from the server + * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration + */ + constructor( + connection: Connection, + command: WriteProtocolMessageType, + reply: Document | undefined, + started: number, + serverConnectionId: bigint | null + ) { + const cmd = extractCommand(command); + const commandName = extractCommandName(cmd); + const { address, connectionId, serviceId } = extractConnectionDetails(connection); + + this.address = address; + this.connectionId = connectionId; + this.serviceId = serviceId; + this.requestId = command.requestId; + this.commandName = commandName; + this.duration = calculateDurationInMs(started); + this.reply = maybeRedact(commandName, cmd, extractReply(command, reply)); + this.serverConnectionId = serverConnectionId; + } + + /* @internal */ + get hasServiceId(): boolean { + return !!this.serviceId; + } +} + +/** + * An event indicating the failure of a given command + * @public + * @category Event + */ +export class CommandFailedEvent { + address: string; + /** Driver generated connection id */ + connectionId?: string | number; + /** + * Server generated connection id + * Distinct from the connection id and is returned by the hello or legacy hello response as "connectionId" from the server on 4.2+. + */ + serverConnectionId: bigint | null; + requestId: number; + duration: number; + commandName: string; + failure: Error; + serviceId?: ObjectId; + /** @internal */ + name = COMMAND_FAILED; + + /** + * Create a failure event + * + * @internal + * @param pool - the pool that originated the command + * @param command - the command + * @param error - the generated error or a server error response + * @param started - a high resolution tuple timestamp of when the command was first sent, to calculate duration + */ + constructor( + connection: Connection, + command: WriteProtocolMessageType, + error: Error | Document, + started: number, + serverConnectionId: bigint | null + ) { + const cmd = extractCommand(command); + const commandName = extractCommandName(cmd); + const { address, connectionId, serviceId } = extractConnectionDetails(connection); + + this.address = address; + this.connectionId = connectionId; + this.serviceId = serviceId; + + this.requestId = command.requestId; + this.commandName = commandName; + this.duration = calculateDurationInMs(started); + this.failure = maybeRedact(commandName, cmd, error) as Error; + this.serverConnectionId = serverConnectionId; + } + + /* @internal */ + get hasServiceId(): boolean { + return !!this.serviceId; + } +} + +/** + * Commands that we want to redact because of the sensitive nature of their contents + * @internal + */ +export const SENSITIVE_COMMANDS = new Set([ + 'authenticate', + 'saslStart', + 'saslContinue', + 'getnonce', + 'createUser', + 'updateUser', + 'copydbgetnonce', + 'copydbsaslstart', + 'copydb' +]); + +const HELLO_COMMANDS = new Set(['hello', LEGACY_HELLO_COMMAND, LEGACY_HELLO_COMMAND_CAMEL_CASE]); + +// helper methods +const extractCommandName = (commandDoc: Document) => Object.keys(commandDoc)[0]; +const namespace = (command: OpQueryRequest) => command.ns; +const collectionName = (command: OpQueryRequest) => command.ns.split('.')[1]; +const maybeRedact = (commandName: string, commandDoc: Document, result: Error | Document) => + SENSITIVE_COMMANDS.has(commandName) || + (HELLO_COMMANDS.has(commandName) && commandDoc.speculativeAuthenticate) + ? {} + : result; + +const LEGACY_FIND_QUERY_MAP: { [key: string]: string } = { + $query: 'filter', + $orderby: 'sort', + $hint: 'hint', + $comment: 'comment', + $maxScan: 'maxScan', + $max: 'max', + $min: 'min', + $returnKey: 'returnKey', + $showDiskLoc: 'showRecordId', + $maxTimeMS: 'maxTimeMS', + $snapshot: 'snapshot' +}; + +const LEGACY_FIND_OPTIONS_MAP = { + numberToSkip: 'skip', + numberToReturn: 'batchSize', + returnFieldSelector: 'projection' +} as const; + +const OP_QUERY_KEYS = [ + 'tailable', + 'oplogReplay', + 'noCursorTimeout', + 'awaitData', + 'partial', + 'exhaust' +] as const; + +/** Extract the actual command from the query, possibly up-converting if it's a legacy format */ +function extractCommand(command: WriteProtocolMessageType): Document { + if (command instanceof OpMsgRequest) { + return deepCopy(command.command); + } + + if (command.query?.$query) { + let result: Document; + if (command.ns === 'admin.$cmd') { + // up-convert legacy command + result = Object.assign({}, command.query.$query); + } else { + // up-convert legacy find command + result = { find: collectionName(command) }; + Object.keys(LEGACY_FIND_QUERY_MAP).forEach(key => { + if (command.query[key] != null) { + result[LEGACY_FIND_QUERY_MAP[key]] = deepCopy(command.query[key]); + } + }); + } + + Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => { + const legacyKey = key as keyof typeof LEGACY_FIND_OPTIONS_MAP; + if (command[legacyKey] != null) { + result[LEGACY_FIND_OPTIONS_MAP[legacyKey]] = deepCopy(command[legacyKey]); + } + }); + + OP_QUERY_KEYS.forEach(key => { + if (command[key]) { + result[key] = command[key]; + } + }); + + if (command.pre32Limit != null) { + result.limit = command.pre32Limit; + } + + if (command.query.$explain) { + return { explain: result }; + } + return result; + } + + const clonedQuery: Record = {}; + const clonedCommand: Record = {}; + if (command.query) { + for (const k in command.query) { + clonedQuery[k] = deepCopy(command.query[k]); + } + clonedCommand.query = clonedQuery; + } + + for (const k in command) { + if (k === 'query') continue; + clonedCommand[k] = deepCopy((command as unknown as Record)[k]); + } + return command.query ? clonedQuery : clonedCommand; +} + +function extractReply(command: WriteProtocolMessageType, reply?: Document) { + if (!reply) { + return reply; + } + + if (command instanceof OpMsgRequest) { + return deepCopy(reply.result ? reply.result : reply); + } + + // is this a legacy find command? + if (command.query && command.query.$query != null) { + return { + ok: 1, + cursor: { + id: deepCopy(reply.cursorId), + ns: namespace(command), + firstBatch: deepCopy(reply.documents) + } + }; + } + + return deepCopy(reply.result ? reply.result : reply); +} + +function extractConnectionDetails(connection: Connection) { + let connectionId; + if ('id' in connection) { + connectionId = connection.id; + } + return { + address: connection.address, + serviceId: connection.serviceId, + connectionId + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/commands.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/commands.ts new file mode 100644 index 000000000..19dd8e1a6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/commands.ts @@ -0,0 +1,662 @@ +import type { BSONSerializeOptions, Document, Long } from '../bson'; +import * as BSON from '../bson'; +import { MongoInvalidArgumentError, MongoRuntimeError } from '../error'; +import { type ReadPreference } from '../read_preference'; +import type { ClientSession } from '../sessions'; +import type { CommandOptions } from './connection'; +import { + compress, + Compressor, + type CompressorName, + uncompressibleCommands +} from './wire_protocol/compression'; +import { OP_COMPRESSED, OP_MSG, OP_QUERY } from './wire_protocol/constants'; + +// Incrementing request id +let _requestId = 0; + +// Query flags +const OPTS_TAILABLE_CURSOR = 2; +const OPTS_SECONDARY = 4; +const OPTS_OPLOG_REPLAY = 8; +const OPTS_NO_CURSOR_TIMEOUT = 16; +const OPTS_AWAIT_DATA = 32; +const OPTS_EXHAUST = 64; +const OPTS_PARTIAL = 128; + +// Response flags +const CURSOR_NOT_FOUND = 1; +const QUERY_FAILURE = 2; +const SHARD_CONFIG_STALE = 4; +const AWAIT_CAPABLE = 8; + +/** @internal */ +export type WriteProtocolMessageType = OpQueryRequest | OpMsgRequest; + +/** @internal */ +export interface OpQueryOptions extends CommandOptions { + socketTimeoutMS?: number; + session?: ClientSession; + numberToSkip?: number; + numberToReturn?: number; + returnFieldSelector?: Document; + pre32Limit?: number; + serializeFunctions?: boolean; + ignoreUndefined?: boolean; + maxBsonSize?: number; + checkKeys?: boolean; + secondaryOk?: boolean; + + requestId?: number; + moreToCome?: boolean; + exhaustAllowed?: boolean; +} + +/** @internal */ +export class OpQueryRequest { + ns: string; + numberToSkip: number; + numberToReturn: number; + returnFieldSelector?: Document; + requestId: number; + pre32Limit?: number; + serializeFunctions: boolean; + ignoreUndefined: boolean; + maxBsonSize: number; + checkKeys: boolean; + batchSize: number; + tailable: boolean; + secondaryOk: boolean; + oplogReplay: boolean; + noCursorTimeout: boolean; + awaitData: boolean; + exhaust: boolean; + partial: boolean; + + constructor(public databaseName: string, public query: Document, options: OpQueryOptions) { + // Basic options needed to be passed in + // TODO(NODE-3483): Replace with MongoCommandError + const ns = `${databaseName}.$cmd`; + if (typeof databaseName !== 'string') { + throw new MongoRuntimeError('Database name must be a string for a query'); + } + // TODO(NODE-3483): Replace with MongoCommandError + if (query == null) throw new MongoRuntimeError('A query document must be specified for query'); + + // Validate that we are not passing 0x00 in the collection name + if (ns.indexOf('\x00') !== -1) { + // TODO(NODE-3483): Use MongoNamespace static method + throw new MongoRuntimeError('Namespace cannot contain a null character'); + } + + // Basic options + this.ns = ns; + + // Additional options + this.numberToSkip = options.numberToSkip || 0; + this.numberToReturn = options.numberToReturn || 0; + this.returnFieldSelector = options.returnFieldSelector || undefined; + this.requestId = options.requestId ?? OpQueryRequest.getRequestId(); + + // special case for pre-3.2 find commands, delete ASAP + this.pre32Limit = options.pre32Limit; + + // Serialization option + this.serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + this.ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false; + this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16; + this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + this.batchSize = this.numberToReturn; + + // Flags + this.tailable = false; + this.secondaryOk = typeof options.secondaryOk === 'boolean' ? options.secondaryOk : false; + this.oplogReplay = false; + this.noCursorTimeout = false; + this.awaitData = false; + this.exhaust = false; + this.partial = false; + } + + /** Assign next request Id. */ + incRequestId(): void { + this.requestId = _requestId++; + } + + /** Peek next request Id. */ + nextRequestId(): number { + return _requestId + 1; + } + + /** Increment then return next request Id. */ + static getRequestId(): number { + return ++_requestId; + } + + // Uses a single allocated buffer for the process, avoiding multiple memory allocations + toBin(): Uint8Array[] { + const buffers = []; + let projection = null; + + // Set up the flags + let flags = 0; + if (this.tailable) { + flags |= OPTS_TAILABLE_CURSOR; + } + + if (this.secondaryOk) { + flags |= OPTS_SECONDARY; + } + + if (this.oplogReplay) { + flags |= OPTS_OPLOG_REPLAY; + } + + if (this.noCursorTimeout) { + flags |= OPTS_NO_CURSOR_TIMEOUT; + } + + if (this.awaitData) { + flags |= OPTS_AWAIT_DATA; + } + + if (this.exhaust) { + flags |= OPTS_EXHAUST; + } + + if (this.partial) { + flags |= OPTS_PARTIAL; + } + + // If batchSize is different to this.numberToReturn + if (this.batchSize !== this.numberToReturn) this.numberToReturn = this.batchSize; + + // Allocate write protocol header buffer + const header = Buffer.alloc( + 4 * 4 + // Header + 4 + // Flags + Buffer.byteLength(this.ns) + + 1 + // namespace + 4 + // numberToSkip + 4 // numberToReturn + ); + + // Add header to buffers + buffers.push(header); + + // Serialize the query + const query = BSON.serialize(this.query, { + checkKeys: this.checkKeys, + serializeFunctions: this.serializeFunctions, + ignoreUndefined: this.ignoreUndefined + }); + + // Add query document + buffers.push(query); + + if (this.returnFieldSelector && Object.keys(this.returnFieldSelector).length > 0) { + // Serialize the projection document + projection = BSON.serialize(this.returnFieldSelector, { + checkKeys: this.checkKeys, + serializeFunctions: this.serializeFunctions, + ignoreUndefined: this.ignoreUndefined + }); + // Add projection document + buffers.push(projection); + } + + // Total message size + const totalLength = header.length + query.length + (projection ? projection.length : 0); + + // Set up the index + let index = 4; + + // Write total document length + header[3] = (totalLength >> 24) & 0xff; + header[2] = (totalLength >> 16) & 0xff; + header[1] = (totalLength >> 8) & 0xff; + header[0] = totalLength & 0xff; + + // Write header information requestId + header[index + 3] = (this.requestId >> 24) & 0xff; + header[index + 2] = (this.requestId >> 16) & 0xff; + header[index + 1] = (this.requestId >> 8) & 0xff; + header[index] = this.requestId & 0xff; + index = index + 4; + + // Write header information responseTo + header[index + 3] = (0 >> 24) & 0xff; + header[index + 2] = (0 >> 16) & 0xff; + header[index + 1] = (0 >> 8) & 0xff; + header[index] = 0 & 0xff; + index = index + 4; + + // Write header information OP_QUERY + header[index + 3] = (OP_QUERY >> 24) & 0xff; + header[index + 2] = (OP_QUERY >> 16) & 0xff; + header[index + 1] = (OP_QUERY >> 8) & 0xff; + header[index] = OP_QUERY & 0xff; + index = index + 4; + + // Write header information flags + header[index + 3] = (flags >> 24) & 0xff; + header[index + 2] = (flags >> 16) & 0xff; + header[index + 1] = (flags >> 8) & 0xff; + header[index] = flags & 0xff; + index = index + 4; + + // Write collection name + index = index + header.write(this.ns, index, 'utf8') + 1; + header[index - 1] = 0; + + // Write header information flags numberToSkip + header[index + 3] = (this.numberToSkip >> 24) & 0xff; + header[index + 2] = (this.numberToSkip >> 16) & 0xff; + header[index + 1] = (this.numberToSkip >> 8) & 0xff; + header[index] = this.numberToSkip & 0xff; + index = index + 4; + + // Write header information flags numberToReturn + header[index + 3] = (this.numberToReturn >> 24) & 0xff; + header[index + 2] = (this.numberToReturn >> 16) & 0xff; + header[index + 1] = (this.numberToReturn >> 8) & 0xff; + header[index] = this.numberToReturn & 0xff; + index = index + 4; + + // Return the buffers + return buffers; + } +} + +/** @internal */ +export interface MessageHeader { + length: number; + requestId: number; + responseTo: number; + opCode: number; + fromCompressed?: boolean; +} + +/** @internal */ +export class OpReply { + parsed: boolean; + raw: Buffer; + data: Buffer; + opts: BSONSerializeOptions; + length: number; + requestId: number; + responseTo: number; + opCode: number; + fromCompressed?: boolean; + responseFlags?: number; + cursorId?: Long; + startingFrom?: number; + numberReturned?: number; + cursorNotFound?: boolean; + queryFailure?: boolean; + shardConfigStale?: boolean; + awaitCapable?: boolean; + useBigInt64: boolean; + promoteLongs: boolean; + promoteValues: boolean; + promoteBuffers: boolean; + bsonRegExp?: boolean; + index = 0; + sections: Uint8Array[] = []; + + /** moreToCome is an OP_MSG only concept */ + moreToCome = false; + + constructor( + message: Buffer, + msgHeader: MessageHeader, + msgBody: Buffer, + opts?: BSONSerializeOptions + ) { + this.parsed = false; + this.raw = message; + this.data = msgBody; + this.opts = opts ?? { + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: false, + bsonRegExp: false + }; + + // Read the message header + this.length = msgHeader.length; + this.requestId = msgHeader.requestId; + this.responseTo = msgHeader.responseTo; + this.opCode = msgHeader.opCode; + this.fromCompressed = msgHeader.fromCompressed; + + // Flag values + this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false; + this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true; + this.promoteValues = + typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true; + this.promoteBuffers = + typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false; + this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false; + } + + isParsed(): boolean { + return this.parsed; + } + + parse(): Uint8Array { + // Don't parse again if not needed + if (this.parsed) return this.sections[0]; + + // Position within OP_REPLY at which documents start + // (See https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#wire-op-reply) + this.index = 20; + + // Read the message body + this.responseFlags = this.data.readInt32LE(0); + this.cursorId = new BSON.Long(this.data.readInt32LE(4), this.data.readInt32LE(8)); + this.startingFrom = this.data.readInt32LE(12); + this.numberReturned = this.data.readInt32LE(16); + + if (this.numberReturned < 0 || this.numberReturned > 2 ** 32 - 1) { + throw new RangeError( + `OP_REPLY numberReturned is an invalid array length ${this.numberReturned}` + ); + } + + this.cursorNotFound = (this.responseFlags & CURSOR_NOT_FOUND) !== 0; + this.queryFailure = (this.responseFlags & QUERY_FAILURE) !== 0; + this.shardConfigStale = (this.responseFlags & SHARD_CONFIG_STALE) !== 0; + this.awaitCapable = (this.responseFlags & AWAIT_CAPABLE) !== 0; + + // Parse Body + for (let i = 0; i < this.numberReturned; i++) { + const bsonSize = + this.data[this.index] | + (this.data[this.index + 1] << 8) | + (this.data[this.index + 2] << 16) | + (this.data[this.index + 3] << 24); + + const section = this.data.subarray(this.index, this.index + bsonSize); + this.sections.push(section); + + // Adjust the index + this.index = this.index + bsonSize; + } + + // Set parsed + this.parsed = true; + + return this.sections[0]; + } +} + +// Msg Flags +const OPTS_CHECKSUM_PRESENT = 1; +const OPTS_MORE_TO_COME = 2; +const OPTS_EXHAUST_ALLOWED = 1 << 16; + +/** @internal */ +export interface OpMsgOptions { + requestId: number; + serializeFunctions: boolean; + ignoreUndefined: boolean; + checkKeys: boolean; + maxBsonSize: number; + moreToCome: boolean; + exhaustAllowed: boolean; + readPreference: ReadPreference; +} + +/** @internal */ +export class OpMsgRequest { + requestId: number; + serializeFunctions: boolean; + ignoreUndefined: boolean; + checkKeys: boolean; + maxBsonSize: number; + checksumPresent: boolean; + moreToCome: boolean; + exhaustAllowed: boolean; + + constructor( + public databaseName: string, + public command: Document, + public options: OpQueryOptions + ) { + // Basic options needed to be passed in + if (command == null) + throw new MongoInvalidArgumentError('Query document must be specified for query'); + + // Basic options + this.command.$db = databaseName; + + // Ensure empty options + this.options = options ?? {}; + + // Additional options + this.requestId = options.requestId ? options.requestId : OpMsgRequest.getRequestId(); + + // Serialization option + this.serializeFunctions = + typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false; + this.ignoreUndefined = + typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false; + this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false; + this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16; + + // flags + this.checksumPresent = false; + this.moreToCome = options.moreToCome || false; + this.exhaustAllowed = + typeof options.exhaustAllowed === 'boolean' ? options.exhaustAllowed : false; + } + + toBin(): Buffer[] { + const buffers: Buffer[] = []; + let flags = 0; + + if (this.checksumPresent) { + flags |= OPTS_CHECKSUM_PRESENT; + } + + if (this.moreToCome) { + flags |= OPTS_MORE_TO_COME; + } + + if (this.exhaustAllowed) { + flags |= OPTS_EXHAUST_ALLOWED; + } + + const header = Buffer.alloc( + 4 * 4 + // Header + 4 // Flags + ); + + buffers.push(header); + + let totalLength = header.length; + const command = this.command; + totalLength += this.makeDocumentSegment(buffers, command); + + header.writeInt32LE(totalLength, 0); // messageLength + header.writeInt32LE(this.requestId, 4); // requestID + header.writeInt32LE(0, 8); // responseTo + header.writeInt32LE(OP_MSG, 12); // opCode + header.writeUInt32LE(flags, 16); // flags + return buffers; + } + + makeDocumentSegment(buffers: Uint8Array[], document: Document): number { + const payloadTypeBuffer = Buffer.alloc(1); + payloadTypeBuffer[0] = 0; + + const documentBuffer = this.serializeBson(document); + buffers.push(payloadTypeBuffer); + buffers.push(documentBuffer); + + return payloadTypeBuffer.length + documentBuffer.length; + } + + serializeBson(document: Document): Uint8Array { + return BSON.serialize(document, { + checkKeys: this.checkKeys, + serializeFunctions: this.serializeFunctions, + ignoreUndefined: this.ignoreUndefined + }); + } + + static getRequestId(): number { + _requestId = (_requestId + 1) & 0x7fffffff; + return _requestId; + } +} + +/** @internal */ +export class OpMsgResponse { + parsed: boolean; + raw: Buffer; + data: Buffer; + opts: BSONSerializeOptions; + length: number; + requestId: number; + responseTo: number; + opCode: number; + fromCompressed?: boolean; + responseFlags: number; + checksumPresent: boolean; + /** Indicates the server will be sending more responses on this connection */ + moreToCome: boolean; + exhaustAllowed: boolean; + useBigInt64: boolean; + promoteLongs: boolean; + promoteValues: boolean; + promoteBuffers: boolean; + bsonRegExp: boolean; + index = 0; + sections: Uint8Array[] = []; + + constructor( + message: Buffer, + msgHeader: MessageHeader, + msgBody: Buffer, + opts?: BSONSerializeOptions + ) { + this.parsed = false; + this.raw = message; + this.data = msgBody; + this.opts = opts ?? { + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: false, + bsonRegExp: false + }; + + // Read the message header + this.length = msgHeader.length; + this.requestId = msgHeader.requestId; + this.responseTo = msgHeader.responseTo; + this.opCode = msgHeader.opCode; + this.fromCompressed = msgHeader.fromCompressed; + + // Read response flags + this.responseFlags = msgBody.readInt32LE(0); + this.checksumPresent = (this.responseFlags & OPTS_CHECKSUM_PRESENT) !== 0; + this.moreToCome = (this.responseFlags & OPTS_MORE_TO_COME) !== 0; + this.exhaustAllowed = (this.responseFlags & OPTS_EXHAUST_ALLOWED) !== 0; + this.useBigInt64 = typeof this.opts.useBigInt64 === 'boolean' ? this.opts.useBigInt64 : false; + this.promoteLongs = typeof this.opts.promoteLongs === 'boolean' ? this.opts.promoteLongs : true; + this.promoteValues = + typeof this.opts.promoteValues === 'boolean' ? this.opts.promoteValues : true; + this.promoteBuffers = + typeof this.opts.promoteBuffers === 'boolean' ? this.opts.promoteBuffers : false; + this.bsonRegExp = typeof this.opts.bsonRegExp === 'boolean' ? this.opts.bsonRegExp : false; + } + + isParsed(): boolean { + return this.parsed; + } + + parse(): Uint8Array { + // Don't parse again if not needed + if (this.parsed) return this.sections[0]; + + this.index = 4; + + while (this.index < this.data.length) { + const payloadType = this.data.readUInt8(this.index++); + if (payloadType === 0) { + const bsonSize = this.data.readUInt32LE(this.index); + const bin = this.data.subarray(this.index, this.index + bsonSize); + + this.sections.push(bin); + + this.index += bsonSize; + } else if (payloadType === 1) { + // It was decided that no driver makes use of payload type 1 + + // TODO(NODE-3483): Replace with MongoDeprecationError + throw new MongoRuntimeError('OP_MSG Payload Type 1 detected unsupported protocol'); + } + } + + this.parsed = true; + + return this.sections[0]; + } +} + +const MESSAGE_HEADER_SIZE = 16; +const COMPRESSION_DETAILS_SIZE = 9; // originalOpcode + uncompressedSize, compressorID + +/** + * @internal + * + * An OP_COMPRESSED request wraps either an OP_QUERY or OP_MSG message. + */ +export class OpCompressedRequest { + constructor( + private command: WriteProtocolMessageType, + private options: { zlibCompressionLevel: number; agreedCompressor: CompressorName } + ) {} + + // Return whether a command contains an uncompressible command term + // Will return true if command contains no uncompressible command terms + static canCompress(command: WriteProtocolMessageType) { + const commandDoc = command instanceof OpMsgRequest ? command.command : command.query; + const commandName = Object.keys(commandDoc)[0]; + return !uncompressibleCommands.has(commandName); + } + + async toBin(): Promise { + const concatenatedOriginalCommandBuffer = Buffer.concat(this.command.toBin()); + // otherwise, compress the message + const messageToBeCompressed = concatenatedOriginalCommandBuffer.slice(MESSAGE_HEADER_SIZE); + + // Extract information needed for OP_COMPRESSED from the uncompressed message + const originalCommandOpCode = concatenatedOriginalCommandBuffer.readInt32LE(12); + + // Compress the message body + const compressedMessage = await compress(this.options, messageToBeCompressed); + // Create the msgHeader of OP_COMPRESSED + const msgHeader = Buffer.alloc(MESSAGE_HEADER_SIZE); + msgHeader.writeInt32LE( + MESSAGE_HEADER_SIZE + COMPRESSION_DETAILS_SIZE + compressedMessage.length, + 0 + ); // messageLength + msgHeader.writeInt32LE(this.command.requestId, 4); // requestID + msgHeader.writeInt32LE(0, 8); // responseTo (zero) + msgHeader.writeInt32LE(OP_COMPRESSED, 12); // opCode + + // Create the compression details of OP_COMPRESSED + const compressionDetails = Buffer.alloc(COMPRESSION_DETAILS_SIZE); + compressionDetails.writeInt32LE(originalCommandOpCode, 0); // originalOpcode + compressionDetails.writeInt32LE(messageToBeCompressed.length, 4); // Size of the uncompressed compressedMessage, excluding the MsgHeader + compressionDetails.writeUInt8(Compressor[this.options.agreedCompressor], 8); // compressorID + return [msgHeader, compressionDetails, compressedMessage]; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connect.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connect.ts new file mode 100644 index 000000000..abc530f88 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connect.ts @@ -0,0 +1,470 @@ +import type { Socket, SocketConnectOpts } from 'net'; +import * as net from 'net'; +import type { ConnectionOptions as TLSConnectionOpts, TLSSocket } from 'tls'; +import * as tls from 'tls'; + +import type { Document } from '../bson'; +import { LEGACY_HELLO_COMMAND } from '../constants'; +import { getSocks, type SocksLib } from '../deps'; +import { + MongoCompatibilityError, + MongoError, + MongoErrorLabel, + MongoInvalidArgumentError, + MongoNetworkError, + MongoNetworkTimeoutError, + MongoRuntimeError, + needsRetryableWriteLabel +} from '../error'; +import { HostAddress, ns, promiseWithResolvers } from '../utils'; +import { AuthContext } from './auth/auth_provider'; +import { AuthMechanism } from './auth/providers'; +import { + type CommandOptions, + Connection, + type ConnectionOptions, + CryptoConnection +} from './connection'; +import { + MAX_SUPPORTED_SERVER_VERSION, + MAX_SUPPORTED_WIRE_VERSION, + MIN_SUPPORTED_SERVER_VERSION, + MIN_SUPPORTED_WIRE_VERSION +} from './wire_protocol/constants'; + +/** @public */ +export type Stream = Socket | TLSSocket; + +export async function connect(options: ConnectionOptions): Promise { + let connection: Connection | null = null; + try { + const socket = await makeSocket(options); + connection = makeConnection(options, socket); + await performInitialHandshake(connection, options); + return connection; + } catch (error) { + connection?.destroy(); + throw error; + } +} + +export function makeConnection(options: ConnectionOptions, socket: Stream): Connection { + let ConnectionType = options.connectionType ?? Connection; + if (options.autoEncrypter) { + ConnectionType = CryptoConnection; + } + + return new ConnectionType(socket, options); +} + +function checkSupportedServer(hello: Document, options: ConnectionOptions) { + const maxWireVersion = Number(hello.maxWireVersion); + const minWireVersion = Number(hello.minWireVersion); + const serverVersionHighEnough = + !Number.isNaN(maxWireVersion) && maxWireVersion >= MIN_SUPPORTED_WIRE_VERSION; + const serverVersionLowEnough = + !Number.isNaN(minWireVersion) && minWireVersion <= MAX_SUPPORTED_WIRE_VERSION; + + if (serverVersionHighEnough) { + if (serverVersionLowEnough) { + return null; + } + + const message = `Server at ${options.hostAddress} reports minimum wire version ${JSON.stringify( + hello.minWireVersion + )}, but this version of the Node.js Driver requires at most ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`; + return new MongoCompatibilityError(message); + } + + const message = `Server at ${options.hostAddress} reports maximum wire version ${ + JSON.stringify(hello.maxWireVersion) ?? 0 + }, but this version of the Node.js Driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION})`; + return new MongoCompatibilityError(message); +} + +export async function performInitialHandshake( + conn: Connection, + options: ConnectionOptions +): Promise { + const credentials = options.credentials; + + if (credentials) { + if ( + !(credentials.mechanism === AuthMechanism.MONGODB_DEFAULT) && + !options.authProviders.getOrCreateProvider(credentials.mechanism) + ) { + throw new MongoInvalidArgumentError(`AuthMechanism '${credentials.mechanism}' not supported`); + } + } + + const authContext = new AuthContext(conn, credentials, options); + conn.authContext = authContext; + + const handshakeDoc = await prepareHandshakeDocument(authContext); + + // @ts-expect-error: TODO(NODE-5141): The options need to be filtered properly, Connection options differ from Command options + const handshakeOptions: CommandOptions = { ...options, raw: false }; + if (typeof options.connectTimeoutMS === 'number') { + // The handshake technically is a monitoring check, so its socket timeout should be connectTimeoutMS + handshakeOptions.socketTimeoutMS = options.connectTimeoutMS; + } + + const start = new Date().getTime(); + const response = await conn.command(ns('admin.$cmd'), handshakeDoc, handshakeOptions); + + if (!('isWritablePrimary' in response)) { + // Provide hello-style response document. + response.isWritablePrimary = response[LEGACY_HELLO_COMMAND]; + } + + if (response.helloOk) { + conn.helloOk = true; + } + + const supportedServerErr = checkSupportedServer(response, options); + if (supportedServerErr) { + throw supportedServerErr; + } + + if (options.loadBalanced) { + if (!response.serviceId) { + throw new MongoCompatibilityError( + 'Driver attempted to initialize in load balancing mode, ' + + 'but the server does not support this mode.' + ); + } + } + + // NOTE: This is metadata attached to the connection while porting away from + // handshake being done in the `Server` class. Likely, it should be + // relocated, or at very least restructured. + conn.hello = response; + conn.lastHelloMS = new Date().getTime() - start; + + if (!response.arbiterOnly && credentials) { + // store the response on auth context + authContext.response = response; + + const resolvedCredentials = credentials.resolveAuthMechanism(response); + const provider = options.authProviders.getOrCreateProvider(resolvedCredentials.mechanism); + if (!provider) { + throw new MongoInvalidArgumentError( + `No AuthProvider for ${resolvedCredentials.mechanism} defined.` + ); + } + + try { + await provider.auth(authContext); + } catch (error) { + if (error instanceof MongoError) { + error.addErrorLabel(MongoErrorLabel.HandshakeError); + if (needsRetryableWriteLabel(error, response.maxWireVersion)) { + error.addErrorLabel(MongoErrorLabel.RetryableWriteError); + } + } + throw error; + } + } + + // Connection establishment is socket creation (tcp handshake, tls handshake, MongoDB handshake (saslStart, saslContinue)) + // Once connection is established, command logging can log events (if enabled) + conn.established = true; +} + +/** + * HandshakeDocument used during authentication. + * @internal + */ +export interface HandshakeDocument extends Document { + /** + * @deprecated Use hello instead + */ + ismaster?: boolean; + hello?: boolean; + helloOk?: boolean; + client: Document; + compression: string[]; + saslSupportedMechs?: string; + loadBalanced?: boolean; +} + +/** + * @internal + * + * This function is only exposed for testing purposes. + */ +export async function prepareHandshakeDocument( + authContext: AuthContext +): Promise { + const options = authContext.options; + const compressors = options.compressors ? options.compressors : []; + const { serverApi } = authContext.connection; + const clientMetadata: Document = await options.extendedMetadata; + + const handshakeDoc: HandshakeDocument = { + [serverApi?.version || options.loadBalanced === true ? 'hello' : LEGACY_HELLO_COMMAND]: 1, + helloOk: true, + client: clientMetadata, + compression: compressors + }; + + if (options.loadBalanced === true) { + handshakeDoc.loadBalanced = true; + } + + const credentials = authContext.credentials; + if (credentials) { + if (credentials.mechanism === AuthMechanism.MONGODB_DEFAULT && credentials.username) { + handshakeDoc.saslSupportedMechs = `${credentials.source}.${credentials.username}`; + + const provider = authContext.options.authProviders.getOrCreateProvider( + AuthMechanism.MONGODB_SCRAM_SHA256 + ); + if (!provider) { + // This auth mechanism is always present. + throw new MongoInvalidArgumentError( + `No AuthProvider for ${AuthMechanism.MONGODB_SCRAM_SHA256} defined.` + ); + } + return await provider.prepare(handshakeDoc, authContext); + } + const provider = authContext.options.authProviders.getOrCreateProvider(credentials.mechanism); + if (!provider) { + throw new MongoInvalidArgumentError(`No AuthProvider for ${credentials.mechanism} defined.`); + } + return await provider.prepare(handshakeDoc, authContext); + } + return handshakeDoc; +} + +/** @public */ +export const LEGAL_TLS_SOCKET_OPTIONS = [ + 'ALPNProtocols', + 'ca', + 'cert', + 'checkServerIdentity', + 'ciphers', + 'crl', + 'ecdhCurve', + 'key', + 'minDHSize', + 'passphrase', + 'pfx', + 'rejectUnauthorized', + 'secureContext', + 'secureProtocol', + 'servername', + 'session' +] as const; + +/** @public */ +export const LEGAL_TCP_SOCKET_OPTIONS = [ + 'family', + 'hints', + 'localAddress', + 'localPort', + 'lookup' +] as const; + +function parseConnectOptions(options: ConnectionOptions): SocketConnectOpts { + const hostAddress = options.hostAddress; + if (!hostAddress) throw new MongoInvalidArgumentError('Option "hostAddress" is required'); + + const result: Partial = {}; + for (const name of LEGAL_TCP_SOCKET_OPTIONS) { + if (options[name] != null) { + (result as Document)[name] = options[name]; + } + } + + if (typeof hostAddress.socketPath === 'string') { + result.path = hostAddress.socketPath; + return result as net.IpcNetConnectOpts; + } else if (typeof hostAddress.host === 'string') { + result.host = hostAddress.host; + result.port = hostAddress.port; + return result as net.TcpNetConnectOpts; + } else { + // This should never happen since we set up HostAddresses + // But if we don't throw here the socket could hang until timeout + // TODO(NODE-3483) + throw new MongoRuntimeError(`Unexpected HostAddress ${JSON.stringify(hostAddress)}`); + } +} + +type MakeConnectionOptions = ConnectionOptions & { existingSocket?: Stream }; + +function parseSslOptions(options: MakeConnectionOptions): TLSConnectionOpts { + const result: TLSConnectionOpts = parseConnectOptions(options); + // Merge in valid SSL options + for (const name of LEGAL_TLS_SOCKET_OPTIONS) { + if (options[name] != null) { + (result as Document)[name] = options[name]; + } + } + + if (options.existingSocket) { + result.socket = options.existingSocket; + } + + // Set default sni servername to be the same as host + if (result.servername == null && result.host && !net.isIP(result.host)) { + result.servername = result.host; + } + + return result; +} + +export async function makeSocket(options: MakeConnectionOptions): Promise { + const useTLS = options.tls ?? false; + const noDelay = options.noDelay ?? true; + const connectTimeoutMS = options.connectTimeoutMS ?? 30000; + const existingSocket = options.existingSocket; + + let socket: Stream; + + if (options.proxyHost != null) { + // Currently, only Socks5 is supported. + return await makeSocks5Connection({ + ...options, + connectTimeoutMS // Should always be present for Socks5 + }); + } + + if (useTLS) { + const tlsSocket = tls.connect(parseSslOptions(options)); + if (typeof tlsSocket.disableRenegotiation === 'function') { + tlsSocket.disableRenegotiation(); + } + socket = tlsSocket; + } else if (existingSocket) { + // In the TLS case, parseSslOptions() sets options.socket to existingSocket, + // so we only need to handle the non-TLS case here (where existingSocket + // gives us all we need out of the box). + socket = existingSocket; + } else { + socket = net.createConnection(parseConnectOptions(options)); + } + + socket.setKeepAlive(true, 300000); + socket.setTimeout(connectTimeoutMS); + socket.setNoDelay(noDelay); + + let cancellationHandler: ((err: Error) => void) | null = null; + + const { promise: connectedSocket, resolve, reject } = promiseWithResolvers(); + if (existingSocket) { + resolve(socket); + } else { + const connectEvent = useTLS ? 'secureConnect' : 'connect'; + socket + .once(connectEvent, () => resolve(socket)) + .once('error', error => reject(connectionFailureError('error', error))) + .once('timeout', () => reject(connectionFailureError('timeout'))) + .once('close', () => reject(connectionFailureError('close'))); + + if (options.cancellationToken != null) { + cancellationHandler = () => reject(connectionFailureError('cancel')); + options.cancellationToken.once('cancel', cancellationHandler); + } + } + + try { + socket = await connectedSocket; + return socket; + } catch (error) { + socket.destroy(); + throw error; + } finally { + socket.setTimeout(0); + socket.removeAllListeners(); + if (cancellationHandler != null) { + options.cancellationToken?.removeListener('cancel', cancellationHandler); + } + } +} + +let socks: SocksLib | null = null; +function loadSocks() { + if (socks == null) { + const socksImport = getSocks(); + if ('kModuleError' in socksImport) { + throw socksImport.kModuleError; + } + socks = socksImport; + } + return socks; +} + +async function makeSocks5Connection(options: MakeConnectionOptions): Promise { + const hostAddress = HostAddress.fromHostPort( + options.proxyHost ?? '', // proxyHost is guaranteed to set here + options.proxyPort ?? 1080 + ); + + // First, connect to the proxy server itself: + const rawSocket = await makeSocket({ + ...options, + hostAddress, + tls: false, + proxyHost: undefined + }); + + const destination = parseConnectOptions(options) as net.TcpNetConnectOpts; + if (typeof destination.host !== 'string' || typeof destination.port !== 'number') { + throw new MongoInvalidArgumentError('Can only make Socks5 connections to TCP hosts'); + } + + socks ??= loadSocks(); + + try { + // Then, establish the Socks5 proxy connection: + const { socket } = await socks.SocksClient.createConnection({ + existing_socket: rawSocket, + timeout: options.connectTimeoutMS, + command: 'connect', + destination: { + host: destination.host, + port: destination.port + }, + proxy: { + // host and port are ignored because we pass existing_socket + host: 'iLoveJavaScript', + port: 0, + type: 5, + userId: options.proxyUsername || undefined, + password: options.proxyPassword || undefined + } + }); + + // Finally, now treat the resulting duplex stream as the + // socket over which we send and receive wire protocol messages: + return await makeSocket({ + ...options, + existingSocket: socket, + proxyHost: undefined + }); + } catch (error) { + throw connectionFailureError('error', error); + } +} + +function connectionFailureError(type: 'error', cause: Error): MongoNetworkError; +function connectionFailureError(type: 'close' | 'timeout' | 'cancel'): MongoNetworkError; +function connectionFailureError( + type: 'error' | 'close' | 'timeout' | 'cancel', + cause?: Error +): MongoNetworkError { + switch (type) { + case 'error': + return new MongoNetworkError(MongoError.buildErrorMessage(cause), { cause }); + case 'timeout': + return new MongoNetworkTimeoutError('connection timed out'); + case 'close': + return new MongoNetworkError('connection closed'); + case 'cancel': + return new MongoNetworkError('connection establishment was cancelled'); + default: + return new MongoNetworkError('unknown network error'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection.ts new file mode 100644 index 000000000..e1ad9a029 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection.ts @@ -0,0 +1,803 @@ +import { type Readable, Transform, type TransformCallback } from 'stream'; +import { clearTimeout, setTimeout } from 'timers'; + +import type { BSONSerializeOptions, Document, ObjectId } from '../bson'; +import type { AutoEncrypter } from '../client-side-encryption/auto_encrypter'; +import { + CLOSE, + CLUSTER_TIME_RECEIVED, + COMMAND_FAILED, + COMMAND_STARTED, + COMMAND_SUCCEEDED, + PINNED, + UNPINNED +} from '../constants'; +import { + MongoCompatibilityError, + MongoMissingDependencyError, + MongoNetworkError, + MongoNetworkTimeoutError, + MongoParseError, + MongoServerError, + MongoUnexpectedServerResponseError, + MongoWriteConcernError +} from '../error'; +import type { ServerApi, SupportedNodeConnectionOptions } from '../mongo_client'; +import { type MongoClientAuthProviders } from '../mongo_client_auth_providers'; +import { MongoLoggableComponent, type MongoLogger, SeverityLevel } from '../mongo_logger'; +import { type CancellationToken, TypedEventEmitter } from '../mongo_types'; +import { ReadPreference, type ReadPreferenceLike } from '../read_preference'; +import { ServerType } from '../sdam/common'; +import { applySession, type ClientSession, updateSessionFromResponse } from '../sessions'; +import { + BufferPool, + calculateDurationInMs, + type Callback, + HostAddress, + maxWireVersion, + type MongoDBNamespace, + now, + once, + squashError, + uuidV4 +} from '../utils'; +import type { WriteConcern } from '../write_concern'; +import type { AuthContext } from './auth/auth_provider'; +import type { MongoCredentials } from './auth/mongo_credentials'; +import { + CommandFailedEvent, + CommandStartedEvent, + CommandSucceededEvent +} from './command_monitoring_events'; +import { + OpCompressedRequest, + OpMsgRequest, + type OpMsgResponse, + OpQueryRequest, + type OpReply, + type WriteProtocolMessageType +} from './commands'; +import type { Stream } from './connect'; +import type { ClientMetadata } from './handshake/client_metadata'; +import { StreamDescription, type StreamDescriptionOptions } from './stream_description'; +import { type CompressorName, decompressResponse } from './wire_protocol/compression'; +import { onData } from './wire_protocol/on_data'; +import { + isErrorResponse, + MongoDBResponse, + type MongoDBResponseConstructor +} from './wire_protocol/responses'; +import { getReadPreference, isSharded } from './wire_protocol/shared'; + +/** @internal */ +export interface CommandOptions extends BSONSerializeOptions { + secondaryOk?: boolean; + /** Specify read preference if command supports it */ + readPreference?: ReadPreferenceLike; + monitoring?: boolean; + socketTimeoutMS?: number; + /** Session to use for the operation */ + session?: ClientSession; + documentsReturnedIn?: string; + noResponse?: boolean; + omitReadPreference?: boolean; + + // TODO(NODE-2802): Currently the CommandOptions take a property willRetryWrite which is a hint + // from executeOperation that the txnNum should be applied to this command. + // Applying a session to a command should happen as part of command construction, + // most likely in the CommandOperation#executeCommand method, where we have access to + // the details we need to determine if a txnNum should also be applied. + willRetryWrite?: boolean; + + writeConcern?: WriteConcern; + + directConnection?: boolean; +} + +/** @public */ +export interface ProxyOptions { + proxyHost?: string; + proxyPort?: number; + proxyUsername?: string; + proxyPassword?: string; +} + +/** @public */ +export interface ConnectionOptions + extends SupportedNodeConnectionOptions, + StreamDescriptionOptions, + ProxyOptions { + // Internal creation info + id: number | ''; + generation: number; + hostAddress: HostAddress; + /** @internal */ + autoEncrypter?: AutoEncrypter; + serverApi?: ServerApi; + monitorCommands: boolean; + /** @internal */ + connectionType?: any; + credentials?: MongoCredentials; + /** @internal */ + authProviders: MongoClientAuthProviders; + connectTimeoutMS?: number; + tls: boolean; + noDelay?: boolean; + socketTimeoutMS?: number; + cancellationToken?: CancellationToken; + metadata: ClientMetadata; + /** @internal */ + extendedMetadata: Promise; + /** @internal */ + mongoLogger?: MongoLogger | undefined; +} + +/** @public */ +export type ConnectionEvents = { + commandStarted(event: CommandStartedEvent): void; + commandSucceeded(event: CommandSucceededEvent): void; + commandFailed(event: CommandFailedEvent): void; + clusterTimeReceived(clusterTime: Document): void; + close(): void; + pinned(pinType: string): void; + unpinned(pinType: string): void; +}; + +/** @internal */ +export function hasSessionSupport(conn: Connection): boolean { + const description = conn.description; + return description.logicalSessionTimeoutMinutes != null; +} + +function streamIdentifier(stream: Stream, options: ConnectionOptions): string { + if (options.proxyHost) { + // If proxy options are specified, the properties of `stream` itself + // will not accurately reflect what endpoint this is connected to. + return options.hostAddress.toString(); + } + + const { remoteAddress, remotePort } = stream; + if (typeof remoteAddress === 'string' && typeof remotePort === 'number') { + return HostAddress.fromHostPort(remoteAddress, remotePort).toString(); + } + + return uuidV4().toString('hex'); +} + +/** @internal */ +export class Connection extends TypedEventEmitter { + public id: number | ''; + public address: string; + public lastHelloMS = -1; + public serverApi?: ServerApi; + public helloOk = false; + public authContext?: AuthContext; + public delayedTimeoutId: NodeJS.Timeout | null = null; + public generation: number; + public readonly description: Readonly; + /** + * Represents if the connection has been established: + * - TCP handshake + * - TLS negotiated + * - mongodb handshake (saslStart, saslContinue), includes authentication + * + * Once connection is established, command logging can log events (if enabled) + */ + public established: boolean; + /** Indicates that the connection (including underlying TCP socket) has been closed. */ + public closed = false; + + private lastUseTime: number; + private clusterTime: Document | null = null; + private error: Error | null = null; + private dataEvents: AsyncGenerator | null = null; + + private readonly socketTimeoutMS: number; + private readonly monitorCommands: boolean; + private readonly socket: Stream; + private readonly messageStream: Readable; + + /** @event */ + static readonly COMMAND_STARTED = COMMAND_STARTED; + /** @event */ + static readonly COMMAND_SUCCEEDED = COMMAND_SUCCEEDED; + /** @event */ + static readonly COMMAND_FAILED = COMMAND_FAILED; + /** @event */ + static readonly CLUSTER_TIME_RECEIVED = CLUSTER_TIME_RECEIVED; + /** @event */ + static readonly CLOSE = CLOSE; + /** @event */ + static readonly PINNED = PINNED; + /** @event */ + static readonly UNPINNED = UNPINNED; + + constructor(stream: Stream, options: ConnectionOptions) { + super(); + + this.socket = stream; + this.id = options.id; + this.address = streamIdentifier(stream, options); + this.socketTimeoutMS = options.socketTimeoutMS ?? 0; + this.monitorCommands = options.monitorCommands; + this.serverApi = options.serverApi; + this.mongoLogger = options.mongoLogger; + this.established = false; + + this.description = new StreamDescription(this.address, options); + this.generation = options.generation; + this.lastUseTime = now(); + + this.messageStream = this.socket + .on('error', this.onError.bind(this)) + .pipe(new SizedMessageTransform({ connection: this })) + .on('error', this.onError.bind(this)); + this.socket.on('close', this.onClose.bind(this)); + this.socket.on('timeout', this.onTimeout.bind(this)); + } + + public get hello() { + return this.description.hello; + } + + // the `connect` method stores the result of the handshake hello on the connection + public set hello(response: Document | null) { + this.description.receiveResponse(response); + Object.freeze(this.description); + } + + public get serviceId(): ObjectId | undefined { + return this.hello?.serviceId; + } + + public get loadBalanced(): boolean { + return this.description.loadBalanced; + } + + public get idleTime(): number { + return calculateDurationInMs(this.lastUseTime); + } + + private get hasSessionSupport(): boolean { + return this.description.logicalSessionTimeoutMinutes != null; + } + + private get supportsOpMsg(): boolean { + return ( + this.description != null && + maxWireVersion(this) >= 6 && + !this.description.__nodejs_mock_server__ + ); + } + + private get shouldEmitAndLogCommand(): boolean { + return ( + (this.monitorCommands || + (this.established && + !this.authContext?.reauthenticating && + this.mongoLogger?.willLog(MongoLoggableComponent.COMMAND, SeverityLevel.DEBUG))) ?? + false + ); + } + + public markAvailable(): void { + this.lastUseTime = now(); + } + + public onError(error: Error) { + this.cleanup(error); + } + + private onClose() { + const message = `connection ${this.id} to ${this.address} closed`; + this.cleanup(new MongoNetworkError(message)); + } + + private onTimeout() { + this.delayedTimeoutId = setTimeout(() => { + const message = `connection ${this.id} to ${this.address} timed out`; + const beforeHandshake = this.hello == null; + this.cleanup(new MongoNetworkTimeoutError(message, { beforeHandshake })); + }, 1).unref(); // No need for this timer to hold the event loop open + } + + public destroy(): void { + if (this.closed) { + return; + } + + // load balanced mode requires that these listeners remain on the connection + // after cleanup on timeouts, errors or close so we remove them before calling + // cleanup. + this.removeAllListeners(Connection.PINNED); + this.removeAllListeners(Connection.UNPINNED); + const message = `connection ${this.id} to ${this.address} closed`; + this.cleanup(new MongoNetworkError(message)); + } + + /** + * A method that cleans up the connection. When `force` is true, this method + * forcibly destroys the socket. + * + * If an error is provided, any in-flight operations will be closed with the error. + * + * This method does nothing if the connection is already closed. + */ + private cleanup(error: Error): void { + if (this.closed) { + return; + } + + this.socket.destroy(); + this.error = error; + // eslint-disable-next-line github/no-then + this.dataEvents?.throw(error).then(undefined, squashError); + this.closed = true; + this.emit(Connection.CLOSE); + } + + private prepareCommand(db: string, command: Document, options: CommandOptions) { + let cmd = { ...command }; + + const readPreference = getReadPreference(options); + const session = options?.session; + + let clusterTime = this.clusterTime; + + if (this.serverApi) { + const { version, strict, deprecationErrors } = this.serverApi; + cmd.apiVersion = version; + if (strict != null) cmd.apiStrict = strict; + if (deprecationErrors != null) cmd.apiDeprecationErrors = deprecationErrors; + } + + if (this.hasSessionSupport && session) { + if ( + session.clusterTime && + clusterTime && + session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime) + ) { + clusterTime = session.clusterTime; + } + + const sessionError = applySession(session, cmd, options); + if (sessionError) throw sessionError; + } else if (session?.explicit) { + throw new MongoCompatibilityError('Current topology does not support sessions'); + } + + // if we have a known cluster time, gossip it + if (clusterTime) { + cmd.$clusterTime = clusterTime; + } + + // For standalone, drivers MUST NOT set $readPreference. + if (this.description.type !== ServerType.Standalone) { + if ( + !isSharded(this) && + !this.description.loadBalanced && + this.supportsOpMsg && + options.directConnection === true && + readPreference?.mode === 'primary' + ) { + // For mongos and load balancers with 'primary' mode, drivers MUST NOT set $readPreference. + // For all other types with a direct connection, if the read preference is 'primary' + // (driver sets 'primary' as default if no read preference is configured), + // the $readPreference MUST be set to 'primaryPreferred' + // to ensure that any server type can handle the request. + cmd.$readPreference = ReadPreference.primaryPreferred.toJSON(); + } else if (isSharded(this) && !this.supportsOpMsg && readPreference?.mode !== 'primary') { + // When sending a read operation via OP_QUERY and the $readPreference modifier, + // the query MUST be provided using the $query modifier. + cmd = { + $query: cmd, + $readPreference: readPreference.toJSON() + }; + } else if (readPreference?.mode !== 'primary') { + // For mode 'primary', drivers MUST NOT set $readPreference. + // For all other read preference modes (i.e. 'secondary', 'primaryPreferred', ...), + // drivers MUST set $readPreference + cmd.$readPreference = readPreference.toJSON(); + } + } + + const commandOptions = { + numberToSkip: 0, + numberToReturn: -1, + checkKeys: false, + // This value is not overridable + secondaryOk: readPreference.secondaryOk(), + ...options + }; + + const message = this.supportsOpMsg + ? new OpMsgRequest(db, cmd, commandOptions) + : new OpQueryRequest(db, cmd, commandOptions); + + return message; + } + + private async *sendWire( + message: WriteProtocolMessageType, + options: CommandOptions, + responseType?: MongoDBResponseConstructor + ): AsyncGenerator { + this.throwIfAborted(); + + if (typeof options.socketTimeoutMS === 'number') { + this.socket.setTimeout(options.socketTimeoutMS); + } else if (this.socketTimeoutMS !== 0) { + this.socket.setTimeout(this.socketTimeoutMS); + } + + try { + await this.writeCommand(message, { + agreedCompressor: this.description.compressor ?? 'none', + zlibCompressionLevel: this.description.zlibCompressionLevel + }); + + if (options.noResponse) { + yield MongoDBResponse.empty; + return; + } + + this.throwIfAborted(); + + for await (const response of this.readMany()) { + this.socket.setTimeout(0); + const bson = response.parse(); + + const document = + responseType == null + ? new MongoDBResponse(bson) + : isErrorResponse(bson) + ? new MongoDBResponse(bson) + : new responseType(bson); + + yield document; + this.throwIfAborted(); + + if (typeof options.socketTimeoutMS === 'number') { + this.socket.setTimeout(options.socketTimeoutMS); + } else if (this.socketTimeoutMS !== 0) { + this.socket.setTimeout(this.socketTimeoutMS); + } + } + } finally { + this.socket.setTimeout(0); + } + } + + private async *sendCommand( + ns: MongoDBNamespace, + command: Document, + options: CommandOptions, + responseType?: MongoDBResponseConstructor + ) { + const message = this.prepareCommand(ns.db, command, options); + + let started = 0; + if (this.shouldEmitAndLogCommand) { + started = now(); + this.emitAndLogCommand( + this.monitorCommands, + Connection.COMMAND_STARTED, + message.databaseName, + this.established, + new CommandStartedEvent(this, message, this.description.serverConnectionId) + ); + } + + // If `documentsReturnedIn` not set or raw is not enabled, use input bson options + // Otherwise, support raw flag. Raw only works for cursors that hardcode firstBatch/nextBatch fields + const bsonOptions = + options.documentsReturnedIn == null || !options.raw + ? options + : { + ...options, + raw: false, + fieldsAsRaw: { [options.documentsReturnedIn]: true } + }; + + /** MongoDBResponse instance or subclass */ + let document: MongoDBResponse | undefined = undefined; + /** Cached result of a toObject call */ + let object: Document | undefined = undefined; + try { + this.throwIfAborted(); + for await (document of this.sendWire(message, options, responseType)) { + object = undefined; + if (options.session != null) { + updateSessionFromResponse(options.session, document); + } + + if (document.$clusterTime) { + this.clusterTime = document.$clusterTime; + this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime); + } + + if (document.has('writeConcernError')) { + object ??= document.toObject(bsonOptions); + throw new MongoWriteConcernError(object.writeConcernError, object); + } + + if (document.isError) { + throw new MongoServerError((object ??= document.toObject(bsonOptions))); + } + + if (this.shouldEmitAndLogCommand) { + this.emitAndLogCommand( + this.monitorCommands, + Connection.COMMAND_SUCCEEDED, + message.databaseName, + this.established, + new CommandSucceededEvent( + this, + message, + options.noResponse ? undefined : (object ??= document.toObject(bsonOptions)), + started, + this.description.serverConnectionId + ) + ); + } + + if (responseType == null) { + yield (object ??= document.toObject(bsonOptions)); + } else { + yield document; + } + + this.throwIfAborted(); + } + } catch (error) { + if (this.shouldEmitAndLogCommand) { + if (error.name === 'MongoWriteConcernError') { + this.emitAndLogCommand( + this.monitorCommands, + Connection.COMMAND_SUCCEEDED, + message.databaseName, + this.established, + new CommandSucceededEvent( + this, + message, + options.noResponse ? undefined : (object ??= document?.toObject(bsonOptions)), + started, + this.description.serverConnectionId + ) + ); + } else { + this.emitAndLogCommand( + this.monitorCommands, + Connection.COMMAND_FAILED, + message.databaseName, + this.established, + new CommandFailedEvent( + this, + message, + error, + started, + this.description.serverConnectionId + ) + ); + } + } + throw error; + } + } + + public async command( + ns: MongoDBNamespace, + command: Document, + options: CommandOptions | undefined, + responseType: T | undefined + ): Promise>; + + public async command( + ns: MongoDBNamespace, + command: Document, + options?: CommandOptions + ): Promise; + + public async command( + ns: MongoDBNamespace, + command: Document, + options: CommandOptions = {}, + responseType?: MongoDBResponseConstructor + ): Promise { + this.throwIfAborted(); + for await (const document of this.sendCommand(ns, command, options, responseType)) { + return document; + } + throw new MongoUnexpectedServerResponseError('Unable to get response from server'); + } + + public exhaustCommand( + ns: MongoDBNamespace, + command: Document, + options: CommandOptions, + replyListener: Callback + ) { + const exhaustLoop = async () => { + this.throwIfAborted(); + for await (const reply of this.sendCommand(ns, command, options)) { + replyListener(undefined, reply); + this.throwIfAborted(); + } + throw new MongoUnexpectedServerResponseError('Server ended moreToCome unexpectedly'); + }; + // eslint-disable-next-line github/no-then + exhaustLoop().then(undefined, replyListener); + } + + private throwIfAborted() { + if (this.error) throw this.error; + } + + /** + * @internal + * + * Writes an OP_MSG or OP_QUERY request to the socket, optionally compressing the command. This method + * waits until the socket's buffer has emptied (the Nodejs socket `drain` event has fired). + */ + private async writeCommand( + command: WriteProtocolMessageType, + options: { agreedCompressor?: CompressorName; zlibCompressionLevel?: number } + ): Promise { + const finalCommand = + options.agreedCompressor === 'none' || !OpCompressedRequest.canCompress(command) + ? command + : new OpCompressedRequest(command, { + agreedCompressor: options.agreedCompressor ?? 'none', + zlibCompressionLevel: options.zlibCompressionLevel ?? 0 + }); + + const buffer = Buffer.concat(await finalCommand.toBin()); + + if (this.socket.write(buffer)) return; + return await once(this.socket, 'drain'); + } + + /** + * @internal + * + * Returns an async generator that yields full wire protocol messages from the underlying socket. This function + * yields messages until `moreToCome` is false or not present in a response, or the caller cancels the request + * by calling `return` on the generator. + * + * Note that `for-await` loops call `return` automatically when the loop is exited. + */ + private async *readMany(): AsyncGenerator { + try { + this.dataEvents = onData(this.messageStream); + for await (const message of this.dataEvents) { + const response = await decompressResponse(message); + yield response; + + if (!response.moreToCome) { + return; + } + } + } finally { + this.dataEvents = null; + this.throwIfAborted(); + } + } +} + +/** @internal */ +export class SizedMessageTransform extends Transform { + bufferPool: BufferPool; + connection: Connection; + + constructor({ connection }: { connection: Connection }) { + super({ objectMode: false }); + this.bufferPool = new BufferPool(); + this.connection = connection; + } + + override _transform(chunk: Buffer, encoding: unknown, callback: TransformCallback): void { + if (this.connection.delayedTimeoutId != null) { + clearTimeout(this.connection.delayedTimeoutId); + this.connection.delayedTimeoutId = null; + } + + this.bufferPool.append(chunk); + const sizeOfMessage = this.bufferPool.getInt32(); + + if (sizeOfMessage == null) { + return callback(); + } + + if (sizeOfMessage < 0) { + return callback(new MongoParseError(`Invalid message size: ${sizeOfMessage}, too small`)); + } + + if (sizeOfMessage > this.bufferPool.length) { + return callback(); + } + + const message = this.bufferPool.read(sizeOfMessage); + return callback(null, message); + } +} + +/** @internal */ +export class CryptoConnection extends Connection { + /** @internal */ + autoEncrypter?: AutoEncrypter; + + constructor(stream: Stream, options: ConnectionOptions) { + super(stream, options); + this.autoEncrypter = options.autoEncrypter; + } + + public override async command( + ns: MongoDBNamespace, + command: Document, + options: CommandOptions | undefined, + responseType: T + ): Promise>; + + public override async command( + ns: MongoDBNamespace, + command: Document, + options?: CommandOptions + ): Promise; + + override async command( + ns: MongoDBNamespace, + cmd: Document, + options?: CommandOptions, + _responseType?: T | undefined + ): Promise { + const { autoEncrypter } = this; + if (!autoEncrypter) { + // TODO(NODE-6065): throw a MongoRuntimeError in Node V7 + // @ts-expect-error No cause provided because there is no underlying error. + throw new MongoMissingDependencyError('No AutoEncrypter available for encryption', { + dependencyName: 'n/a' + }); + } + + const serverWireVersion = maxWireVersion(this); + if (serverWireVersion === 0) { + // This means the initial handshake hasn't happened yet + return await super.command(ns, cmd, options, undefined); + } + + if (serverWireVersion < 8) { + throw new MongoCompatibilityError( + 'Auto-encryption requires a minimum MongoDB version of 4.2' + ); + } + + // Save sort or indexKeys based on the command being run + // the encrypt API serializes our JS objects to BSON to pass to the native code layer + // and then deserializes the encrypted result, the protocol level components + // of the command (ex. sort) are then converted to JS objects potentially losing + // import key order information. These fields are never encrypted so we can save the values + // from before the encryption and replace them after encryption has been performed + const sort: Map | null = cmd.find || cmd.findAndModify ? cmd.sort : null; + const indexKeys: Map[] | null = cmd.createIndexes + ? cmd.indexes.map((index: { key: Map }) => index.key) + : null; + + const encrypted = await autoEncrypter.encrypt(ns.toString(), cmd, options); + + // Replace the saved values + if (sort != null && (cmd.find || cmd.findAndModify)) { + encrypted.sort = sort; + } + + if (indexKeys != null && cmd.createIndexes) { + for (const [offset, index] of indexKeys.entries()) { + // @ts-expect-error `encrypted` is a generic "command", but we've narrowed for only `createIndexes` commands here + encrypted.indexes[offset].key = index; + } + } + + const response = await super.command(ns, encrypted, options, undefined); + + return await autoEncrypter.decrypt(response, options); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection_pool.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection_pool.ts new file mode 100644 index 000000000..7c271e8a9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection_pool.ts @@ -0,0 +1,844 @@ +import { clearTimeout, setTimeout } from 'timers'; + +import type { ObjectId } from '../bson'; +import { + APM_EVENTS, + CONNECTION_CHECK_OUT_FAILED, + CONNECTION_CHECK_OUT_STARTED, + CONNECTION_CHECKED_IN, + CONNECTION_CHECKED_OUT, + CONNECTION_CLOSED, + CONNECTION_CREATED, + CONNECTION_POOL_CLEARED, + CONNECTION_POOL_CLOSED, + CONNECTION_POOL_CREATED, + CONNECTION_POOL_READY, + CONNECTION_READY +} from '../constants'; +import { + type AnyError, + type MongoError, + MongoInvalidArgumentError, + MongoMissingCredentialsError, + MongoNetworkError, + MongoRuntimeError, + MongoServerError +} from '../error'; +import { CancellationToken, TypedEventEmitter } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import { Timeout, TimeoutError } from '../timeout'; +import { type Callback, List, makeCounter, promiseWithResolvers } from '../utils'; +import { connect } from './connect'; +import { Connection, type ConnectionEvents, type ConnectionOptions } from './connection'; +import { + ConnectionCheckedInEvent, + ConnectionCheckedOutEvent, + ConnectionCheckOutFailedEvent, + ConnectionCheckOutStartedEvent, + ConnectionClosedEvent, + ConnectionCreatedEvent, + ConnectionPoolClearedEvent, + ConnectionPoolClosedEvent, + ConnectionPoolCreatedEvent, + ConnectionPoolReadyEvent, + ConnectionReadyEvent +} from './connection_pool_events'; +import { + PoolClearedError, + PoolClearedOnNetworkError, + PoolClosedError, + WaitQueueTimeoutError +} from './errors'; +import { ConnectionPoolMetrics } from './metrics'; + +/** @internal */ +const kServer = Symbol('server'); +/** @internal */ +const kConnections = Symbol('connections'); +/** @internal */ +const kPending = Symbol('pending'); +/** @internal */ +const kCheckedOut = Symbol('checkedOut'); +/** @internal */ +const kMinPoolSizeTimer = Symbol('minPoolSizeTimer'); +/** @internal */ +const kGeneration = Symbol('generation'); +/** @internal */ +const kServiceGenerations = Symbol('serviceGenerations'); +/** @internal */ +const kConnectionCounter = Symbol('connectionCounter'); +/** @internal */ +const kCancellationToken = Symbol('cancellationToken'); +/** @internal */ +const kWaitQueue = Symbol('waitQueue'); +/** @internal */ +const kCancelled = Symbol('cancelled'); +/** @internal */ +const kMetrics = Symbol('metrics'); +/** @internal */ +const kProcessingWaitQueue = Symbol('processingWaitQueue'); +/** @internal */ +const kPoolState = Symbol('poolState'); + +/** @public */ +export interface ConnectionPoolOptions extends Omit { + /** The maximum number of connections that may be associated with a pool at a given time. This includes in use and available connections. */ + maxPoolSize: number; + /** The minimum number of connections that MUST exist at any moment in a single connection pool. */ + minPoolSize: number; + /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */ + maxConnecting: number; + /** The maximum amount of time a connection should remain idle in the connection pool before being marked idle. */ + maxIdleTimeMS: number; + /** The maximum amount of time operation execution should wait for a connection to become available. The default is 0 which means there is no limit. */ + waitQueueTimeoutMS: number; + /** If we are in load balancer mode. */ + loadBalanced: boolean; + /** @internal */ + minPoolSizeCheckFrequencyMS?: number; +} + +/** @internal */ +export interface WaitQueueMember { + resolve: (conn: Connection) => void; + reject: (err: AnyError) => void; + timeout: Timeout; + [kCancelled]?: boolean; +} + +/** @internal */ +export const PoolState = Object.freeze({ + paused: 'paused', + ready: 'ready', + closed: 'closed' +} as const); + +/** + * @public + * @deprecated This interface is deprecated and will be removed in a future release as it is not used + * in the driver + */ +export interface CloseOptions { + force?: boolean; +} + +/** @public */ +export type ConnectionPoolEvents = { + connectionPoolCreated(event: ConnectionPoolCreatedEvent): void; + connectionPoolReady(event: ConnectionPoolReadyEvent): void; + connectionPoolClosed(event: ConnectionPoolClosedEvent): void; + connectionPoolCleared(event: ConnectionPoolClearedEvent): void; + connectionCreated(event: ConnectionCreatedEvent): void; + connectionReady(event: ConnectionReadyEvent): void; + connectionClosed(event: ConnectionClosedEvent): void; + connectionCheckOutStarted(event: ConnectionCheckOutStartedEvent): void; + connectionCheckOutFailed(event: ConnectionCheckOutFailedEvent): void; + connectionCheckedOut(event: ConnectionCheckedOutEvent): void; + connectionCheckedIn(event: ConnectionCheckedInEvent): void; +} & Omit; + +/** + * A pool of connections which dynamically resizes, and emit events related to pool activity + * @internal + */ +export class ConnectionPool extends TypedEventEmitter { + options: Readonly; + [kPoolState]: (typeof PoolState)[keyof typeof PoolState]; + [kServer]: Server; + [kConnections]: List; + [kPending]: number; + [kCheckedOut]: Set; + [kMinPoolSizeTimer]?: NodeJS.Timeout; + /** + * An integer representing the SDAM generation of the pool + */ + [kGeneration]: number; + /** + * A map of generations to service ids + */ + [kServiceGenerations]: Map; + [kConnectionCounter]: Generator; + [kCancellationToken]: CancellationToken; + [kWaitQueue]: List; + [kMetrics]: ConnectionPoolMetrics; + [kProcessingWaitQueue]: boolean; + + /** + * Emitted when the connection pool is created. + * @event + */ + static readonly CONNECTION_POOL_CREATED = CONNECTION_POOL_CREATED; + /** + * Emitted once when the connection pool is closed + * @event + */ + static readonly CONNECTION_POOL_CLOSED = CONNECTION_POOL_CLOSED; + /** + * Emitted each time the connection pool is cleared and it's generation incremented + * @event + */ + static readonly CONNECTION_POOL_CLEARED = CONNECTION_POOL_CLEARED; + /** + * Emitted each time the connection pool is marked ready + * @event + */ + static readonly CONNECTION_POOL_READY = CONNECTION_POOL_READY; + /** + * Emitted when a connection is created. + * @event + */ + static readonly CONNECTION_CREATED = CONNECTION_CREATED; + /** + * Emitted when a connection becomes established, and is ready to use + * @event + */ + static readonly CONNECTION_READY = CONNECTION_READY; + /** + * Emitted when a connection is closed + * @event + */ + static readonly CONNECTION_CLOSED = CONNECTION_CLOSED; + /** + * Emitted when an attempt to check out a connection begins + * @event + */ + static readonly CONNECTION_CHECK_OUT_STARTED = CONNECTION_CHECK_OUT_STARTED; + /** + * Emitted when an attempt to check out a connection fails + * @event + */ + static readonly CONNECTION_CHECK_OUT_FAILED = CONNECTION_CHECK_OUT_FAILED; + /** + * Emitted each time a connection is successfully checked out of the connection pool + * @event + */ + static readonly CONNECTION_CHECKED_OUT = CONNECTION_CHECKED_OUT; + /** + * Emitted each time a connection is successfully checked into the connection pool + * @event + */ + static readonly CONNECTION_CHECKED_IN = CONNECTION_CHECKED_IN; + + constructor(server: Server, options: ConnectionPoolOptions) { + super(); + + this.options = Object.freeze({ + connectionType: Connection, + ...options, + maxPoolSize: options.maxPoolSize ?? 100, + minPoolSize: options.minPoolSize ?? 0, + maxConnecting: options.maxConnecting ?? 2, + maxIdleTimeMS: options.maxIdleTimeMS ?? 0, + waitQueueTimeoutMS: options.waitQueueTimeoutMS ?? 0, + minPoolSizeCheckFrequencyMS: options.minPoolSizeCheckFrequencyMS ?? 100, + autoEncrypter: options.autoEncrypter + }); + + if (this.options.minPoolSize > this.options.maxPoolSize) { + throw new MongoInvalidArgumentError( + 'Connection pool minimum size must not be greater than maximum pool size' + ); + } + + this[kPoolState] = PoolState.paused; + this[kServer] = server; + this[kConnections] = new List(); + this[kPending] = 0; + this[kCheckedOut] = new Set(); + this[kMinPoolSizeTimer] = undefined; + this[kGeneration] = 0; + this[kServiceGenerations] = new Map(); + this[kConnectionCounter] = makeCounter(1); + this[kCancellationToken] = new CancellationToken(); + this[kCancellationToken].setMaxListeners(Infinity); + this[kWaitQueue] = new List(); + this[kMetrics] = new ConnectionPoolMetrics(); + this[kProcessingWaitQueue] = false; + + this.mongoLogger = this[kServer].topology.client?.mongoLogger; + this.component = 'connection'; + + process.nextTick(() => { + this.emitAndLog(ConnectionPool.CONNECTION_POOL_CREATED, new ConnectionPoolCreatedEvent(this)); + }); + } + + /** The address of the endpoint the pool is connected to */ + get address(): string { + return this.options.hostAddress.toString(); + } + + /** + * Check if the pool has been closed + * + * TODO(NODE-3263): We can remove this property once shell no longer needs it + */ + get closed(): boolean { + return this[kPoolState] === PoolState.closed; + } + + /** An integer representing the SDAM generation of the pool */ + get generation(): number { + return this[kGeneration]; + } + + /** An integer expressing how many total connections (available + pending + in use) the pool currently has */ + get totalConnectionCount(): number { + return ( + this.availableConnectionCount + this.pendingConnectionCount + this.currentCheckedOutCount + ); + } + + /** An integer expressing how many connections are currently available in the pool. */ + get availableConnectionCount(): number { + return this[kConnections].length; + } + + get pendingConnectionCount(): number { + return this[kPending]; + } + + get currentCheckedOutCount(): number { + return this[kCheckedOut].size; + } + + get waitQueueSize(): number { + return this[kWaitQueue].length; + } + + get loadBalanced(): boolean { + return this.options.loadBalanced; + } + + get serviceGenerations(): Map { + return this[kServiceGenerations]; + } + + get serverError() { + return this[kServer].description.error; + } + + /** + * This is exposed ONLY for use in mongosh, to enable + * killing all connections if a user quits the shell with + * operations in progress. + * + * This property may be removed as a part of NODE-3263. + */ + get checkedOutConnections() { + return this[kCheckedOut]; + } + + /** + * Get the metrics information for the pool when a wait queue timeout occurs. + */ + private waitQueueErrorMetrics(): string { + return this[kMetrics].info(this.options.maxPoolSize); + } + + /** + * Set the pool state to "ready" + */ + ready(): void { + if (this[kPoolState] !== PoolState.paused) { + return; + } + this[kPoolState] = PoolState.ready; + this.emitAndLog(ConnectionPool.CONNECTION_POOL_READY, new ConnectionPoolReadyEvent(this)); + clearTimeout(this[kMinPoolSizeTimer]); + this.ensureMinPoolSize(); + } + + /** + * Check a connection out of this pool. The connection will continue to be tracked, but no reference to it + * will be held by the pool. This means that if a connection is checked out it MUST be checked back in or + * explicitly destroyed by the new owner. + */ + async checkOut(): Promise { + this.emitAndLog( + ConnectionPool.CONNECTION_CHECK_OUT_STARTED, + new ConnectionCheckOutStartedEvent(this) + ); + + const waitQueueTimeoutMS = this.options.waitQueueTimeoutMS; + + const { promise, resolve, reject } = promiseWithResolvers(); + + const timeout = Timeout.expires(waitQueueTimeoutMS); + + const waitQueueMember: WaitQueueMember = { + resolve, + reject, + timeout + }; + + this[kWaitQueue].push(waitQueueMember); + process.nextTick(() => this.processWaitQueue()); + + try { + return await Promise.race([promise, waitQueueMember.timeout]); + } catch (error) { + if (TimeoutError.is(error)) { + waitQueueMember[kCancelled] = true; + + waitQueueMember.timeout.clear(); + + this.emitAndLog( + ConnectionPool.CONNECTION_CHECK_OUT_FAILED, + new ConnectionCheckOutFailedEvent(this, 'timeout') + ); + const timeoutError = new WaitQueueTimeoutError( + this.loadBalanced + ? this.waitQueueErrorMetrics() + : 'Timed out while checking out a connection from connection pool', + this.address + ); + throw timeoutError; + } + throw error; + } + } + + /** + * Check a connection into the pool. + * + * @param connection - The connection to check in + */ + checkIn(connection: Connection): void { + if (!this[kCheckedOut].has(connection)) { + return; + } + const poolClosed = this.closed; + const stale = this.connectionIsStale(connection); + const willDestroy = !!(poolClosed || stale || connection.closed); + + if (!willDestroy) { + connection.markAvailable(); + this[kConnections].unshift(connection); + } + + this[kCheckedOut].delete(connection); + this.emitAndLog( + ConnectionPool.CONNECTION_CHECKED_IN, + new ConnectionCheckedInEvent(this, connection) + ); + + if (willDestroy) { + const reason = connection.closed ? 'error' : poolClosed ? 'poolClosed' : 'stale'; + this.destroyConnection(connection, reason); + } + + process.nextTick(() => this.processWaitQueue()); + } + + /** + * Clear the pool + * + * Pool reset is handled by incrementing the pool's generation count. Any existing connection of a + * previous generation will eventually be pruned during subsequent checkouts. + */ + clear(options: { serviceId?: ObjectId; interruptInUseConnections?: boolean } = {}): void { + if (this.closed) { + return; + } + + // handle load balanced case + if (this.loadBalanced) { + const { serviceId } = options; + if (!serviceId) { + throw new MongoRuntimeError( + 'ConnectionPool.clear() called in load balanced mode with no serviceId.' + ); + } + const sid = serviceId.toHexString(); + const generation = this.serviceGenerations.get(sid); + // Only need to worry if the generation exists, since it should + // always be there but typescript needs the check. + if (generation == null) { + throw new MongoRuntimeError('Service generations are required in load balancer mode.'); + } else { + // Increment the generation for the service id. + this.serviceGenerations.set(sid, generation + 1); + } + this.emitAndLog( + ConnectionPool.CONNECTION_POOL_CLEARED, + new ConnectionPoolClearedEvent(this, { serviceId }) + ); + return; + } + // handle non load-balanced case + const interruptInUseConnections = options.interruptInUseConnections ?? false; + const oldGeneration = this[kGeneration]; + this[kGeneration] += 1; + const alreadyPaused = this[kPoolState] === PoolState.paused; + this[kPoolState] = PoolState.paused; + + this.clearMinPoolSizeTimer(); + if (!alreadyPaused) { + this.emitAndLog( + ConnectionPool.CONNECTION_POOL_CLEARED, + new ConnectionPoolClearedEvent(this, { + interruptInUseConnections + }) + ); + } + + if (interruptInUseConnections) { + process.nextTick(() => this.interruptInUseConnections(oldGeneration)); + } + + this.processWaitQueue(); + } + + /** + * Closes all stale in-use connections in the pool with a resumable PoolClearedOnNetworkError. + * + * Only connections where `connection.generation <= minGeneration` are killed. + */ + private interruptInUseConnections(minGeneration: number) { + for (const connection of this[kCheckedOut]) { + if (connection.generation <= minGeneration) { + connection.onError(new PoolClearedOnNetworkError(this)); + this.checkIn(connection); + } + } + } + + /** Close the pool */ + close(): void { + if (this.closed) { + return; + } + + // immediately cancel any in-flight connections + this[kCancellationToken].emit('cancel'); + + // end the connection counter + if (typeof this[kConnectionCounter].return === 'function') { + this[kConnectionCounter].return(undefined); + } + + this[kPoolState] = PoolState.closed; + this.clearMinPoolSizeTimer(); + this.processWaitQueue(); + + for (const conn of this[kConnections]) { + this.emitAndLog( + ConnectionPool.CONNECTION_CLOSED, + new ConnectionClosedEvent(this, conn, 'poolClosed') + ); + conn.destroy(); + } + this[kConnections].clear(); + this.emitAndLog(ConnectionPool.CONNECTION_POOL_CLOSED, new ConnectionPoolClosedEvent(this)); + } + + /** + * @internal + * Reauthenticate a connection + */ + async reauthenticate(connection: Connection): Promise { + const authContext = connection.authContext; + if (!authContext) { + throw new MongoRuntimeError('No auth context found on connection.'); + } + const credentials = authContext.credentials; + if (!credentials) { + throw new MongoMissingCredentialsError( + 'Connection is missing credentials when asked to reauthenticate' + ); + } + + const resolvedCredentials = credentials.resolveAuthMechanism(connection.hello); + const provider = this[kServer].topology.client.s.authProviders.getOrCreateProvider( + resolvedCredentials.mechanism + ); + + if (!provider) { + throw new MongoMissingCredentialsError( + `Reauthenticate failed due to no auth provider for ${credentials.mechanism}` + ); + } + + await provider.reauth(authContext); + + return; + } + + /** Clear the min pool size timer */ + private clearMinPoolSizeTimer(): void { + const minPoolSizeTimer = this[kMinPoolSizeTimer]; + if (minPoolSizeTimer) { + clearTimeout(minPoolSizeTimer); + } + } + + private destroyConnection( + connection: Connection, + reason: 'error' | 'idle' | 'stale' | 'poolClosed' + ) { + this.emitAndLog( + ConnectionPool.CONNECTION_CLOSED, + new ConnectionClosedEvent(this, connection, reason) + ); + // destroy the connection + connection.destroy(); + } + + private connectionIsStale(connection: Connection) { + const serviceId = connection.serviceId; + if (this.loadBalanced && serviceId) { + const sid = serviceId.toHexString(); + const generation = this.serviceGenerations.get(sid); + return connection.generation !== generation; + } + + return connection.generation !== this[kGeneration]; + } + + private connectionIsIdle(connection: Connection) { + return !!(this.options.maxIdleTimeMS && connection.idleTime > this.options.maxIdleTimeMS); + } + + /** + * Destroys a connection if the connection is perished. + * + * @returns `true` if the connection was destroyed, `false` otherwise. + */ + private destroyConnectionIfPerished(connection: Connection): boolean { + const isStale = this.connectionIsStale(connection); + const isIdle = this.connectionIsIdle(connection); + if (!isStale && !isIdle && !connection.closed) { + return false; + } + const reason = connection.closed ? 'error' : isStale ? 'stale' : 'idle'; + this.destroyConnection(connection, reason); + return true; + } + + private createConnection(callback: Callback) { + const connectOptions: ConnectionOptions = { + ...this.options, + id: this[kConnectionCounter].next().value, + generation: this[kGeneration], + cancellationToken: this[kCancellationToken], + mongoLogger: this.mongoLogger, + authProviders: this[kServer].topology.client.s.authProviders + }; + + this[kPending]++; + // This is our version of a "virtual" no-I/O connection as the spec requires + this.emitAndLog( + ConnectionPool.CONNECTION_CREATED, + new ConnectionCreatedEvent(this, { id: connectOptions.id }) + ); + + // eslint-disable-next-line github/no-then + connect(connectOptions).then( + connection => { + // The pool might have closed since we started trying to create a connection + if (this[kPoolState] !== PoolState.ready) { + this[kPending]--; + connection.destroy(); + callback(this.closed ? new PoolClosedError(this) : new PoolClearedError(this)); + return; + } + + // forward all events from the connection to the pool + for (const event of [...APM_EVENTS, Connection.CLUSTER_TIME_RECEIVED]) { + connection.on(event, (e: any) => this.emit(event, e)); + } + + if (this.loadBalanced) { + connection.on(Connection.PINNED, pinType => this[kMetrics].markPinned(pinType)); + connection.on(Connection.UNPINNED, pinType => this[kMetrics].markUnpinned(pinType)); + + const serviceId = connection.serviceId; + if (serviceId) { + let generation; + const sid = serviceId.toHexString(); + if ((generation = this.serviceGenerations.get(sid))) { + connection.generation = generation; + } else { + this.serviceGenerations.set(sid, 0); + connection.generation = 0; + } + } + } + + connection.markAvailable(); + this.emitAndLog( + ConnectionPool.CONNECTION_READY, + new ConnectionReadyEvent(this, connection) + ); + + this[kPending]--; + callback(undefined, connection); + }, + error => { + this[kPending]--; + this.emitAndLog( + ConnectionPool.CONNECTION_CLOSED, + new ConnectionClosedEvent( + this, + { id: connectOptions.id, serviceId: undefined }, + 'error', + // TODO(NODE-5192): Remove this cast + error as MongoError + ) + ); + if (error instanceof MongoNetworkError || error instanceof MongoServerError) { + error.connectionGeneration = connectOptions.generation; + } + callback(error ?? new MongoRuntimeError('Connection creation failed without error')); + } + ); + } + + private ensureMinPoolSize() { + const minPoolSize = this.options.minPoolSize; + if (this[kPoolState] !== PoolState.ready || minPoolSize === 0) { + return; + } + + this[kConnections].prune(connection => this.destroyConnectionIfPerished(connection)); + + if ( + this.totalConnectionCount < minPoolSize && + this.pendingConnectionCount < this.options.maxConnecting + ) { + // NOTE: ensureMinPoolSize should not try to get all the pending + // connection permits because that potentially delays the availability of + // the connection to a checkout request + this.createConnection((err, connection) => { + if (err) { + this[kServer].handleError(err); + } + if (!err && connection) { + this[kConnections].push(connection); + process.nextTick(() => this.processWaitQueue()); + } + if (this[kPoolState] === PoolState.ready) { + clearTimeout(this[kMinPoolSizeTimer]); + this[kMinPoolSizeTimer] = setTimeout( + () => this.ensureMinPoolSize(), + this.options.minPoolSizeCheckFrequencyMS + ); + } + }); + } else { + clearTimeout(this[kMinPoolSizeTimer]); + this[kMinPoolSizeTimer] = setTimeout( + () => this.ensureMinPoolSize(), + this.options.minPoolSizeCheckFrequencyMS + ); + } + } + + private processWaitQueue() { + if (this[kProcessingWaitQueue]) { + return; + } + this[kProcessingWaitQueue] = true; + + while (this.waitQueueSize) { + const waitQueueMember = this[kWaitQueue].first(); + if (!waitQueueMember) { + this[kWaitQueue].shift(); + continue; + } + + if (waitQueueMember[kCancelled]) { + this[kWaitQueue].shift(); + continue; + } + + if (this[kPoolState] !== PoolState.ready) { + const reason = this.closed ? 'poolClosed' : 'connectionError'; + const error = this.closed ? new PoolClosedError(this) : new PoolClearedError(this); + this.emitAndLog( + ConnectionPool.CONNECTION_CHECK_OUT_FAILED, + new ConnectionCheckOutFailedEvent(this, reason, error) + ); + waitQueueMember.timeout.clear(); + this[kWaitQueue].shift(); + waitQueueMember.reject(error); + continue; + } + + if (!this.availableConnectionCount) { + break; + } + + const connection = this[kConnections].shift(); + if (!connection) { + break; + } + + if (!this.destroyConnectionIfPerished(connection)) { + this[kCheckedOut].add(connection); + this.emitAndLog( + ConnectionPool.CONNECTION_CHECKED_OUT, + new ConnectionCheckedOutEvent(this, connection) + ); + waitQueueMember.timeout.clear(); + + this[kWaitQueue].shift(); + waitQueueMember.resolve(connection); + } + } + + const { maxPoolSize, maxConnecting } = this.options; + while ( + this.waitQueueSize > 0 && + this.pendingConnectionCount < maxConnecting && + (maxPoolSize === 0 || this.totalConnectionCount < maxPoolSize) + ) { + const waitQueueMember = this[kWaitQueue].shift(); + if (!waitQueueMember || waitQueueMember[kCancelled]) { + continue; + } + this.createConnection((err, connection) => { + if (waitQueueMember[kCancelled]) { + if (!err && connection) { + this[kConnections].push(connection); + } + } else { + if (err) { + this.emitAndLog( + ConnectionPool.CONNECTION_CHECK_OUT_FAILED, + // TODO(NODE-5192): Remove this cast + new ConnectionCheckOutFailedEvent(this, 'connectionError', err as MongoError) + ); + waitQueueMember.reject(err); + } else if (connection) { + this[kCheckedOut].add(connection); + this.emitAndLog( + ConnectionPool.CONNECTION_CHECKED_OUT, + new ConnectionCheckedOutEvent(this, connection) + ); + waitQueueMember.resolve(connection); + } + + waitQueueMember.timeout.clear(); + } + process.nextTick(() => this.processWaitQueue()); + }); + } + this[kProcessingWaitQueue] = false; + } +} + +/** + * A callback provided to `withConnection` + * @internal + * + * @param error - An error instance representing the error during the execution. + * @param connection - The managed connection which was checked out of the pool. + * @param callback - A function to call back after connection management is complete + */ +export type WithConnectionCallback = ( + error: MongoError | undefined, + connection: Connection | undefined, + callback: Callback +) => void; diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection_pool_events.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection_pool_events.ts new file mode 100644 index 000000000..379bc2d52 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/connection_pool_events.ts @@ -0,0 +1,268 @@ +import type { ObjectId } from '../bson'; +import { + CONNECTION_CHECK_OUT_FAILED, + CONNECTION_CHECK_OUT_STARTED, + CONNECTION_CHECKED_IN, + CONNECTION_CHECKED_OUT, + CONNECTION_CLOSED, + CONNECTION_CREATED, + CONNECTION_POOL_CLEARED, + CONNECTION_POOL_CLOSED, + CONNECTION_POOL_CREATED, + CONNECTION_POOL_READY, + CONNECTION_READY +} from '../constants'; +import type { MongoError } from '../error'; +import type { Connection } from './connection'; +import type { ConnectionPool, ConnectionPoolOptions } from './connection_pool'; + +/** + * The base export class for all monitoring events published from the connection pool + * @public + * @category Event + */ +export abstract class ConnectionPoolMonitoringEvent { + /** A timestamp when the event was created */ + time: Date; + /** The address (host/port pair) of the pool */ + address: string; + /** @internal */ + abstract name: + | typeof CONNECTION_CHECK_OUT_FAILED + | typeof CONNECTION_CHECK_OUT_STARTED + | typeof CONNECTION_CHECKED_IN + | typeof CONNECTION_CHECKED_OUT + | typeof CONNECTION_CLOSED + | typeof CONNECTION_CREATED + | typeof CONNECTION_POOL_CLEARED + | typeof CONNECTION_POOL_CLOSED + | typeof CONNECTION_POOL_CREATED + | typeof CONNECTION_POOL_READY + | typeof CONNECTION_READY; + + /** @internal */ + constructor(pool: ConnectionPool) { + this.time = new Date(); + this.address = pool.address; + } +} + +/** + * An event published when a connection pool is created + * @public + * @category Event + */ +export class ConnectionPoolCreatedEvent extends ConnectionPoolMonitoringEvent { + /** The options used to create this connection pool */ + options: Pick< + ConnectionPoolOptions, + 'maxPoolSize' | 'minPoolSize' | 'maxConnecting' | 'maxIdleTimeMS' | 'waitQueueTimeoutMS' + >; + /** @internal */ + name = CONNECTION_POOL_CREATED; + + /** @internal */ + constructor(pool: ConnectionPool) { + super(pool); + const { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS } = + pool.options; + this.options = { maxConnecting, maxPoolSize, minPoolSize, maxIdleTimeMS, waitQueueTimeoutMS }; + } +} + +/** + * An event published when a connection pool is ready + * @public + * @category Event + */ +export class ConnectionPoolReadyEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + name = CONNECTION_POOL_READY; + + /** @internal */ + constructor(pool: ConnectionPool) { + super(pool); + } +} + +/** + * An event published when a connection pool is closed + * @public + * @category Event + */ +export class ConnectionPoolClosedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + name = CONNECTION_POOL_CLOSED; + + /** @internal */ + constructor(pool: ConnectionPool) { + super(pool); + } +} + +/** + * An event published when a connection pool creates a new connection + * @public + * @category Event + */ +export class ConnectionCreatedEvent extends ConnectionPoolMonitoringEvent { + /** A monotonically increasing, per-pool id for the newly created connection */ + connectionId: number | ''; + /** @internal */ + name = CONNECTION_CREATED; + + /** @internal */ + constructor(pool: ConnectionPool, connection: { id: number | '' }) { + super(pool); + this.connectionId = connection.id; + } +} + +/** + * An event published when a connection is ready for use + * @public + * @category Event + */ +export class ConnectionReadyEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /** @internal */ + name = CONNECTION_READY; + + /** @internal */ + constructor(pool: ConnectionPool, connection: Connection) { + super(pool); + this.connectionId = connection.id; + } +} + +/** + * An event published when a connection is closed + * @public + * @category Event + */ +export class ConnectionClosedEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /** The reason the connection was closed */ + reason: string; + serviceId?: ObjectId; + /** @internal */ + name = CONNECTION_CLOSED; + /** @internal */ + error: MongoError | null; + + /** @internal */ + constructor( + pool: ConnectionPool, + connection: Pick, + reason: 'idle' | 'stale' | 'poolClosed' | 'error', + error?: MongoError + ) { + super(pool); + this.connectionId = connection.id; + this.reason = reason; + this.serviceId = connection.serviceId; + this.error = error ?? null; + } +} + +/** + * An event published when a request to check a connection out begins + * @public + * @category Event + */ +export class ConnectionCheckOutStartedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + name = CONNECTION_CHECK_OUT_STARTED; + + /** @internal */ + constructor(pool: ConnectionPool) { + super(pool); + } +} + +/** + * An event published when a request to check a connection out fails + * @public + * @category Event + */ +export class ConnectionCheckOutFailedEvent extends ConnectionPoolMonitoringEvent { + /** The reason the attempt to check out failed */ + reason: string; + /** @internal */ + error?: MongoError; + /** @internal */ + name = CONNECTION_CHECK_OUT_FAILED; + + /** @internal */ + constructor( + pool: ConnectionPool, + reason: 'poolClosed' | 'timeout' | 'connectionError', + error?: MongoError + ) { + super(pool); + this.reason = reason; + this.error = error; + } +} + +/** + * An event published when a connection is checked out of the connection pool + * @public + * @category Event + */ +export class ConnectionCheckedOutEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /** @internal */ + name = CONNECTION_CHECKED_OUT; + + /** @internal */ + constructor(pool: ConnectionPool, connection: Connection) { + super(pool); + this.connectionId = connection.id; + } +} + +/** + * An event published when a connection is checked into the connection pool + * @public + * @category Event + */ +export class ConnectionCheckedInEvent extends ConnectionPoolMonitoringEvent { + /** The id of the connection */ + connectionId: number | ''; + /** @internal */ + name = CONNECTION_CHECKED_IN; + + /** @internal */ + constructor(pool: ConnectionPool, connection: Connection) { + super(pool); + this.connectionId = connection.id; + } +} + +/** + * An event published when a connection pool is cleared + * @public + * @category Event + */ +export class ConnectionPoolClearedEvent extends ConnectionPoolMonitoringEvent { + /** @internal */ + serviceId?: ObjectId; + + interruptInUseConnections?: boolean; + /** @internal */ + name = CONNECTION_POOL_CLEARED; + + /** @internal */ + constructor( + pool: ConnectionPool, + options: { serviceId?: ObjectId; interruptInUseConnections?: boolean } = {} + ) { + super(pool); + this.serviceId = options.serviceId; + this.interruptInUseConnections = options.interruptInUseConnections; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/errors.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/errors.ts new file mode 100644 index 000000000..9d51aa02c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/errors.ts @@ -0,0 +1,119 @@ +import { MongoDriverError, MongoErrorLabel, MongoNetworkError } from '../error'; +import type { ConnectionPool } from './connection_pool'; + +/** + * An error indicating a connection pool is closed + * @category Error + */ +export class PoolClosedError extends MongoDriverError { + /** The address of the connection pool */ + address: string; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(pool: ConnectionPool) { + super('Attempted to check out a connection from closed connection pool'); + this.address = pool.address; + } + + override get name(): string { + return 'MongoPoolClosedError'; + } +} + +/** + * An error indicating a connection pool is currently paused + * @category Error + */ +export class PoolClearedError extends MongoNetworkError { + /** The address of the connection pool */ + address: string; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(pool: ConnectionPool, message?: string) { + const errorMessage = message + ? message + : `Connection pool for ${pool.address} was cleared because another operation failed with: "${pool.serverError?.message}"`; + super(errorMessage, pool.serverError ? { cause: pool.serverError } : undefined); + this.address = pool.address; + + this.addErrorLabel(MongoErrorLabel.PoolRequstedRetry); + } + + override get name(): string { + return 'MongoPoolClearedError'; + } +} + +/** + * An error indicating that a connection pool has been cleared after the monitor for that server timed out. + * @category Error + */ +export class PoolClearedOnNetworkError extends PoolClearedError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(pool: ConnectionPool) { + super(pool, `Connection to ${pool.address} interrupted due to server monitor timeout`); + } + + override get name(): string { + return 'PoolClearedOnNetworkError'; + } +} + +/** + * An error thrown when a request to check out a connection times out + * @category Error + */ +export class WaitQueueTimeoutError extends MongoDriverError { + /** The address of the connection pool */ + address: string; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, address: string) { + super(message); + this.address = address; + } + + override get name(): string { + return 'MongoWaitQueueTimeoutError'; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/handshake/client_metadata.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/handshake/client_metadata.ts new file mode 100644 index 000000000..875403d70 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/handshake/client_metadata.ts @@ -0,0 +1,320 @@ +import * as os from 'os'; +import * as process from 'process'; + +import { BSON, type Document, Int32 } from '../../bson'; +import { MongoInvalidArgumentError } from '../../error'; +import type { MongoOptions } from '../../mongo_client'; +import { fileIsAccessible } from '../../utils'; + +// eslint-disable-next-line @typescript-eslint/no-var-requires +const NODE_DRIVER_VERSION = require('../../../package.json').version; + +/** + * @public + * @see https://github.com/mongodb/specifications/blob/master/source/mongodb-handshake/handshake.rst#hello-command + */ +export interface ClientMetadata { + driver: { + name: string; + version: string; + }; + os: { + type: string; + name?: NodeJS.Platform; + architecture?: string; + version?: string; + }; + platform: string; + application?: { + name: string; + }; + /** FaaS environment information */ + env?: { + name: 'aws.lambda' | 'gcp.func' | 'azure.func' | 'vercel'; + timeout_sec?: Int32; + memory_mb?: Int32; + region?: string; + url?: string; + }; +} + +/** @public */ +export interface ClientMetadataOptions { + driverInfo?: { + name?: string; + version?: string; + platform?: string; + }; + appName?: string; +} + +/** @internal */ +export class LimitedSizeDocument { + private document = new Map(); + /** BSON overhead: Int32 + Null byte */ + private documentSize = 5; + constructor(private maxSize: number) {} + + /** Only adds key/value if the bsonByteLength is less than MAX_SIZE */ + public ifItFitsItSits(key: string, value: Record | string): boolean { + // The BSON byteLength of the new element is the same as serializing it to its own document + // subtracting the document size int32 and the null terminator. + const newElementSize = BSON.serialize(new Map().set(key, value)).byteLength - 5; + + if (newElementSize + this.documentSize > this.maxSize) { + return false; + } + + this.documentSize += newElementSize; + + this.document.set(key, value); + + return true; + } + + toObject(): Document { + return BSON.deserialize(BSON.serialize(this.document), { + promoteLongs: false, + promoteBuffers: false, + promoteValues: false, + useBigInt64: false + }); + } +} + +type MakeClientMetadataOptions = Pick; +/** + * From the specs: + * Implementors SHOULD cumulatively update fields in the following order until the document is under the size limit: + * 1. Omit fields from `env` except `env.name`. + * 2. Omit fields from `os` except `os.type`. + * 3. Omit the `env` document entirely. + * 4. Truncate `platform`. -- special we do not truncate this field + */ +export function makeClientMetadata(options: MakeClientMetadataOptions): ClientMetadata { + const metadataDocument = new LimitedSizeDocument(512); + + const { appName = '' } = options; + // Add app name first, it must be sent + if (appName.length > 0) { + const name = + Buffer.byteLength(appName, 'utf8') <= 128 + ? options.appName + : Buffer.from(appName, 'utf8').subarray(0, 128).toString('utf8'); + metadataDocument.ifItFitsItSits('application', { name }); + } + + const { name = '', version = '', platform = '' } = options.driverInfo; + + const driverInfo = { + name: name.length > 0 ? `nodejs|${name}` : 'nodejs', + version: version.length > 0 ? `${NODE_DRIVER_VERSION}|${version}` : NODE_DRIVER_VERSION + }; + + if (!metadataDocument.ifItFitsItSits('driver', driverInfo)) { + throw new MongoInvalidArgumentError( + 'Unable to include driverInfo name and version, metadata cannot exceed 512 bytes' + ); + } + + let runtimeInfo = getRuntimeInfo(); + if (platform.length > 0) { + runtimeInfo = `${runtimeInfo}|${platform}`; + } + + if (!metadataDocument.ifItFitsItSits('platform', runtimeInfo)) { + throw new MongoInvalidArgumentError( + 'Unable to include driverInfo platform, metadata cannot exceed 512 bytes' + ); + } + + // Note: order matters, os.type is last so it will be removed last if we're at maxSize + const osInfo = new Map() + .set('name', process.platform) + .set('architecture', process.arch) + .set('version', os.release()) + .set('type', os.type()); + + if (!metadataDocument.ifItFitsItSits('os', osInfo)) { + for (const key of osInfo.keys()) { + osInfo.delete(key); + if (osInfo.size === 0) break; + if (metadataDocument.ifItFitsItSits('os', osInfo)) break; + } + } + + const faasEnv = getFAASEnv(); + if (faasEnv != null) { + if (!metadataDocument.ifItFitsItSits('env', faasEnv)) { + for (const key of faasEnv.keys()) { + faasEnv.delete(key); + if (faasEnv.size === 0) break; + if (metadataDocument.ifItFitsItSits('env', faasEnv)) break; + } + } + } + return metadataDocument.toObject() as ClientMetadata; +} + +let dockerPromise: Promise; +/** @internal */ +async function getContainerMetadata() { + const containerMetadata: Record = {}; + dockerPromise ??= fileIsAccessible('/.dockerenv'); + const isDocker = await dockerPromise; + + const { KUBERNETES_SERVICE_HOST = '' } = process.env; + const isKubernetes = KUBERNETES_SERVICE_HOST.length > 0 ? true : false; + + if (isDocker) containerMetadata.runtime = 'docker'; + if (isKubernetes) containerMetadata.orchestrator = 'kubernetes'; + + return containerMetadata; +} + +/** + * @internal + * Re-add each metadata value. + * Attempt to add new env container metadata, but keep old data if it does not fit. + */ +export async function addContainerMetadata(originalMetadata: ClientMetadata) { + const containerMetadata = await getContainerMetadata(); + if (Object.keys(containerMetadata).length === 0) return originalMetadata; + + const extendedMetadata = new LimitedSizeDocument(512); + + const extendedEnvMetadata = { ...originalMetadata?.env, container: containerMetadata }; + + for (const [key, val] of Object.entries(originalMetadata)) { + if (key !== 'env') { + extendedMetadata.ifItFitsItSits(key, val); + } else { + if (!extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata)) { + // add in old data if newer / extended metadata does not fit + extendedMetadata.ifItFitsItSits('env', val); + } + } + } + + if (!('env' in originalMetadata)) { + extendedMetadata.ifItFitsItSits('env', extendedEnvMetadata); + } + + return extendedMetadata.toObject(); +} + +/** + * Collects FaaS metadata. + * - `name` MUST be the last key in the Map returned. + */ +export function getFAASEnv(): Map | null { + const { + AWS_EXECUTION_ENV = '', + AWS_LAMBDA_RUNTIME_API = '', + FUNCTIONS_WORKER_RUNTIME = '', + K_SERVICE = '', + FUNCTION_NAME = '', + VERCEL = '', + AWS_LAMBDA_FUNCTION_MEMORY_SIZE = '', + AWS_REGION = '', + FUNCTION_MEMORY_MB = '', + FUNCTION_REGION = '', + FUNCTION_TIMEOUT_SEC = '', + VERCEL_REGION = '' + } = process.env; + + const isAWSFaaS = + AWS_EXECUTION_ENV.startsWith('AWS_Lambda_') || AWS_LAMBDA_RUNTIME_API.length > 0; + const isAzureFaaS = FUNCTIONS_WORKER_RUNTIME.length > 0; + const isGCPFaaS = K_SERVICE.length > 0 || FUNCTION_NAME.length > 0; + const isVercelFaaS = VERCEL.length > 0; + + // Note: order matters, name must always be the last key + const faasEnv = new Map(); + + // When isVercelFaaS is true so is isAWSFaaS; Vercel inherits the AWS env + if (isVercelFaaS && !(isAzureFaaS || isGCPFaaS)) { + if (VERCEL_REGION.length > 0) { + faasEnv.set('region', VERCEL_REGION); + } + + faasEnv.set('name', 'vercel'); + return faasEnv; + } + + if (isAWSFaaS && !(isAzureFaaS || isGCPFaaS || isVercelFaaS)) { + if (AWS_REGION.length > 0) { + faasEnv.set('region', AWS_REGION); + } + + if ( + AWS_LAMBDA_FUNCTION_MEMORY_SIZE.length > 0 && + Number.isInteger(+AWS_LAMBDA_FUNCTION_MEMORY_SIZE) + ) { + faasEnv.set('memory_mb', new Int32(AWS_LAMBDA_FUNCTION_MEMORY_SIZE)); + } + + faasEnv.set('name', 'aws.lambda'); + return faasEnv; + } + + if (isAzureFaaS && !(isGCPFaaS || isAWSFaaS || isVercelFaaS)) { + faasEnv.set('name', 'azure.func'); + return faasEnv; + } + + if (isGCPFaaS && !(isAzureFaaS || isAWSFaaS || isVercelFaaS)) { + if (FUNCTION_REGION.length > 0) { + faasEnv.set('region', FUNCTION_REGION); + } + + if (FUNCTION_MEMORY_MB.length > 0 && Number.isInteger(+FUNCTION_MEMORY_MB)) { + faasEnv.set('memory_mb', new Int32(FUNCTION_MEMORY_MB)); + } + + if (FUNCTION_TIMEOUT_SEC.length > 0 && Number.isInteger(+FUNCTION_TIMEOUT_SEC)) { + faasEnv.set('timeout_sec', new Int32(FUNCTION_TIMEOUT_SEC)); + } + + faasEnv.set('name', 'gcp.func'); + return faasEnv; + } + + return null; +} + +/** + * @internal + * This type represents the global Deno object and the minimal type contract we expect it to satisfy. + */ +declare const Deno: { version?: { deno?: string } } | undefined; + +/** + * @internal + * This type represents the global Bun object and the minimal type contract we expect it to satisfy. + */ +declare const Bun: { (): void; version?: string } | undefined; + +/** + * @internal + * Get current JavaScript runtime platform + * + * NOTE: The version information fetching is intentionally written defensively + * to avoid having a released driver version that becomes incompatible + * with a future change to these global objects. + */ +function getRuntimeInfo(): string { + if ('Deno' in globalThis) { + const version = typeof Deno?.version?.deno === 'string' ? Deno?.version?.deno : '0.0.0-unknown'; + + return `Deno v${version}, ${os.endianness()}`; + } + + if ('Bun' in globalThis) { + const version = typeof Bun?.version === 'string' ? Bun?.version : '0.0.0-unknown'; + + return `Bun v${version}, ${os.endianness()}`; + } + + return `Node.js ${process.version}, ${os.endianness()}`; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/metrics.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/metrics.ts new file mode 100644 index 000000000..b825b5393 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/metrics.ts @@ -0,0 +1,58 @@ +/** @internal */ +export class ConnectionPoolMetrics { + static readonly TXN = 'txn' as const; + static readonly CURSOR = 'cursor' as const; + static readonly OTHER = 'other' as const; + + txnConnections = 0; + cursorConnections = 0; + otherConnections = 0; + + /** + * Mark a connection as pinned for a specific operation. + */ + markPinned(pinType: string): void { + if (pinType === ConnectionPoolMetrics.TXN) { + this.txnConnections += 1; + } else if (pinType === ConnectionPoolMetrics.CURSOR) { + this.cursorConnections += 1; + } else { + this.otherConnections += 1; + } + } + + /** + * Unmark a connection as pinned for an operation. + */ + markUnpinned(pinType: string): void { + if (pinType === ConnectionPoolMetrics.TXN) { + this.txnConnections -= 1; + } else if (pinType === ConnectionPoolMetrics.CURSOR) { + this.cursorConnections -= 1; + } else { + this.otherConnections -= 1; + } + } + + /** + * Return information about the cmap metrics as a string. + */ + info(maxPoolSize: number): string { + return ( + 'Timed out while checking out a connection from connection pool: ' + + `maxPoolSize: ${maxPoolSize}, ` + + `connections in use by cursors: ${this.cursorConnections}, ` + + `connections in use by transactions: ${this.txnConnections}, ` + + `connections in use by other operations: ${this.otherConnections}` + ); + } + + /** + * Reset the metrics to the initial values. + */ + reset(): void { + this.txnConnections = 0; + this.cursorConnections = 0; + this.otherConnections = 0; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/stream_description.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/stream_description.ts new file mode 100644 index 000000000..88411c92c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/stream_description.ts @@ -0,0 +1,96 @@ +import { type Document, type Double, Long } from '../bson'; +import { ServerType } from '../sdam/common'; +import { parseServerType } from '../sdam/server_description'; +import type { CompressorName } from './wire_protocol/compression'; + +const RESPONSE_FIELDS = [ + 'minWireVersion', + 'maxWireVersion', + 'maxBsonObjectSize', + 'maxMessageSizeBytes', + 'maxWriteBatchSize', + 'logicalSessionTimeoutMinutes' +] as const; + +/** @public */ +export interface StreamDescriptionOptions { + compressors?: CompressorName[]; + logicalSessionTimeoutMinutes?: number; + loadBalanced: boolean; +} + +/** @public */ +export class StreamDescription { + address: string; + type: ServerType; + minWireVersion?: number; + maxWireVersion?: number; + maxBsonObjectSize: number; + maxMessageSizeBytes: number; + maxWriteBatchSize: number; + compressors: CompressorName[]; + compressor?: CompressorName; + logicalSessionTimeoutMinutes?: number; + loadBalanced: boolean; + + __nodejs_mock_server__?: boolean; + + zlibCompressionLevel?: number; + serverConnectionId: bigint | null; + + public hello: Document | null = null; + + constructor(address: string, options?: StreamDescriptionOptions) { + this.address = address; + this.type = ServerType.Unknown; + this.minWireVersion = undefined; + this.maxWireVersion = undefined; + this.maxBsonObjectSize = 16777216; + this.maxMessageSizeBytes = 48000000; + this.maxWriteBatchSize = 100000; + this.logicalSessionTimeoutMinutes = options?.logicalSessionTimeoutMinutes; + this.loadBalanced = !!options?.loadBalanced; + this.compressors = + options && options.compressors && Array.isArray(options.compressors) + ? options.compressors + : []; + this.serverConnectionId = null; + } + + receiveResponse(response: Document | null): void { + if (response == null) { + return; + } + this.hello = response; + this.type = parseServerType(response); + if ('connectionId' in response) { + this.serverConnectionId = this.parseServerConnectionID(response.connectionId); + } else { + this.serverConnectionId = null; + } + for (const field of RESPONSE_FIELDS) { + if (response[field] != null) { + this[field] = response[field]; + } + + // testing case + if ('__nodejs_mock_server__' in response) { + this.__nodejs_mock_server__ = response['__nodejs_mock_server__']; + } + } + + if (response.compression) { + this.compressor = this.compressors.filter(c => response.compression?.includes(c))[0]; + } + } + + /* @internal */ + parseServerConnectionID(serverConnectionId: number | Double | bigint | Long): bigint { + // Connection ids are always integral, so it's safe to coerce doubles as well as + // any integral type. + return Long.isLong(serverConnectionId) + ? serverConnectionId.toBigInt() + : // @ts-expect-error: Doubles are coercible to number + BigInt(serverConnectionId); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/compression.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/compression.ts new file mode 100644 index 000000000..e9f6565f7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/compression.ts @@ -0,0 +1,196 @@ +import { promisify } from 'util'; +import * as zlib from 'zlib'; + +import { LEGACY_HELLO_COMMAND } from '../../constants'; +import { getSnappy, getZstdLibrary, type SnappyLib, type ZStandard } from '../../deps'; +import { MongoDecompressionError, MongoInvalidArgumentError } from '../../error'; +import { + type MessageHeader, + OpCompressedRequest, + OpMsgResponse, + OpReply, + type WriteProtocolMessageType +} from '../commands'; +import { OP_COMPRESSED, OP_MSG } from './constants'; + +/** @public */ +export const Compressor = Object.freeze({ + none: 0, + snappy: 1, + zlib: 2, + zstd: 3 +} as const); + +/** @public */ +export type Compressor = (typeof Compressor)[CompressorName]; + +/** @public */ +export type CompressorName = keyof typeof Compressor; + +export const uncompressibleCommands = new Set([ + LEGACY_HELLO_COMMAND, + 'saslStart', + 'saslContinue', + 'getnonce', + 'authenticate', + 'createUser', + 'updateUser', + 'copydbSaslStart', + 'copydbgetnonce', + 'copydb' +]); + +const ZSTD_COMPRESSION_LEVEL = 3; + +const zlibInflate = promisify(zlib.inflate.bind(zlib)); +const zlibDeflate = promisify(zlib.deflate.bind(zlib)); + +let zstd: ZStandard; +let Snappy: SnappyLib | null = null; +function loadSnappy() { + if (Snappy == null) { + const snappyImport = getSnappy(); + if ('kModuleError' in snappyImport) { + throw snappyImport.kModuleError; + } + Snappy = snappyImport; + } + return Snappy; +} + +// Facilitate compressing a message using an agreed compressor +export async function compress( + options: { zlibCompressionLevel: number; agreedCompressor: CompressorName }, + dataToBeCompressed: Buffer +): Promise { + const zlibOptions = {} as zlib.ZlibOptions; + switch (options.agreedCompressor) { + case 'snappy': { + Snappy ??= loadSnappy(); + return await Snappy.compress(dataToBeCompressed); + } + case 'zstd': { + loadZstd(); + if ('kModuleError' in zstd) { + throw zstd['kModuleError']; + } + return await zstd.compress(dataToBeCompressed, ZSTD_COMPRESSION_LEVEL); + } + case 'zlib': { + if (options.zlibCompressionLevel) { + zlibOptions.level = options.zlibCompressionLevel; + } + return await zlibDeflate(dataToBeCompressed, zlibOptions); + } + default: { + throw new MongoInvalidArgumentError( + `Unknown compressor ${options.agreedCompressor} failed to compress` + ); + } + } +} + +// Decompress a message using the given compressor +export async function decompress(compressorID: number, compressedData: Buffer): Promise { + if ( + compressorID !== Compressor.snappy && + compressorID !== Compressor.zstd && + compressorID !== Compressor.zlib && + compressorID !== Compressor.none + ) { + throw new MongoDecompressionError( + `Server sent message compressed using an unsupported compressor. (Received compressor ID ${compressorID})` + ); + } + + switch (compressorID) { + case Compressor.snappy: { + Snappy ??= loadSnappy(); + return await Snappy.uncompress(compressedData, { asBuffer: true }); + } + case Compressor.zstd: { + loadZstd(); + if ('kModuleError' in zstd) { + throw zstd['kModuleError']; + } + return await zstd.decompress(compressedData); + } + case Compressor.zlib: { + return await zlibInflate(compressedData); + } + default: { + return compressedData; + } + } +} + +/** + * Load ZStandard if it is not already set. + */ +function loadZstd() { + if (!zstd) { + zstd = getZstdLibrary(); + } +} + +const MESSAGE_HEADER_SIZE = 16; + +/** + * @internal + * + * Compresses an OP_MSG or OP_QUERY message, if compression is configured. This method + * also serializes the command to BSON. + */ +export async function compressCommand( + command: WriteProtocolMessageType, + description: { agreedCompressor?: CompressorName; zlibCompressionLevel?: number } +): Promise { + const finalCommand = + description.agreedCompressor === 'none' || !OpCompressedRequest.canCompress(command) + ? command + : new OpCompressedRequest(command, { + agreedCompressor: description.agreedCompressor ?? 'none', + zlibCompressionLevel: description.zlibCompressionLevel ?? 0 + }); + const data = await finalCommand.toBin(); + return Buffer.concat(data); +} + +/** + * @internal + * + * Decompresses an OP_MSG or OP_QUERY response from the server, if compression is configured. + * + * This method does not parse the response's BSON. + */ +export async function decompressResponse(message: Buffer): Promise { + const messageHeader: MessageHeader = { + length: message.readInt32LE(0), + requestId: message.readInt32LE(4), + responseTo: message.readInt32LE(8), + opCode: message.readInt32LE(12) + }; + + if (messageHeader.opCode !== OP_COMPRESSED) { + const ResponseType = messageHeader.opCode === OP_MSG ? OpMsgResponse : OpReply; + const messageBody = message.subarray(MESSAGE_HEADER_SIZE); + return new ResponseType(message, messageHeader, messageBody); + } + + const header: MessageHeader = { + ...messageHeader, + fromCompressed: true, + opCode: message.readInt32LE(MESSAGE_HEADER_SIZE), + length: message.readInt32LE(MESSAGE_HEADER_SIZE + 4) + }; + const compressorID = message[MESSAGE_HEADER_SIZE + 8]; + const compressedBuffer = message.slice(MESSAGE_HEADER_SIZE + 9); + + // recalculate based on wrapped opcode + const ResponseType = header.opCode === OP_MSG ? OpMsgResponse : OpReply; + const messageBody = await decompress(compressorID, compressedBuffer); + if (messageBody.length !== header.length) { + throw new MongoDecompressionError('Message body and message header must be the same length'); + } + return new ResponseType(message, header, messageBody); +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/constants.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/constants.ts new file mode 100644 index 000000000..b62cdc90c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/constants.ts @@ -0,0 +1,13 @@ +export const MIN_SUPPORTED_SERVER_VERSION = '3.6'; +export const MAX_SUPPORTED_SERVER_VERSION = '7.0'; +export const MIN_SUPPORTED_WIRE_VERSION = 6; +export const MAX_SUPPORTED_WIRE_VERSION = 21; +export const MIN_SUPPORTED_QE_WIRE_VERSION = 21; +export const MIN_SUPPORTED_QE_SERVER_VERSION = '7.0'; +export const OP_REPLY = 1; +export const OP_UPDATE = 2001; +export const OP_INSERT = 2002; +export const OP_QUERY = 2004; +export const OP_DELETE = 2006; +export const OP_COMPRESSED = 2012; +export const OP_MSG = 2013; diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/on_data.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/on_data.ts new file mode 100644 index 000000000..b99c950d9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/on_data.ts @@ -0,0 +1,118 @@ +import { type EventEmitter } from 'events'; + +import { List, promiseWithResolvers } from '../../utils'; + +/** + * @internal + * An object holding references to a promise's resolve and reject functions. + */ +type PendingPromises = Omit< + ReturnType>>, + 'promise' +>; + +/** + * onData is adapted from Node.js' events.on helper + * https://nodejs.org/api/events.html#eventsonemitter-eventname-options + * + * Returns an AsyncIterator that iterates each 'data' event emitted from emitter. + * It will reject upon an error event. + */ +export function onData(emitter: EventEmitter) { + // Setup pending events and pending promise lists + /** + * When the caller has not yet called .next(), we store the + * value from the event in this list. Next time they call .next() + * we pull the first value out of this list and resolve a promise with it. + */ + const unconsumedEvents = new List(); + /** + * When there has not yet been an event, a new promise will be created + * and implicitly stored in this list. When an event occurs we take the first + * promise in this list and resolve it. + */ + const unconsumedPromises = new List(); + + /** + * Stored an error created by an error event. + * This error will turn into a rejection for the subsequent .next() call + */ + let error: Error | null = null; + + /** Set to true only after event listeners have been removed. */ + let finished = false; + + const iterator: AsyncGenerator = { + next() { + // First, we consume all unread events + const value = unconsumedEvents.shift(); + if (value != null) { + return Promise.resolve({ value, done: false }); + } + + // Then we error, if an error happened + // This happens one time if at all, because after 'error' + // we stop listening + if (error != null) { + const p = Promise.reject(error); + // Only the first element errors + error = null; + return p; + } + + // If the iterator is finished, resolve to done + if (finished) return closeHandler(); + + // Wait until an event happens + const { promise, resolve, reject } = promiseWithResolvers>(); + unconsumedPromises.push({ resolve, reject }); + return promise; + }, + + return() { + return closeHandler(); + }, + + throw(err: Error) { + errorHandler(err); + return Promise.resolve({ value: undefined, done: true }); + }, + + [Symbol.asyncIterator]() { + return this; + } + }; + + // Adding event handlers + emitter.on('data', eventHandler); + emitter.on('error', errorHandler); + + return iterator; + + function eventHandler(value: Buffer) { + const promise = unconsumedPromises.shift(); + if (promise != null) promise.resolve({ value, done: false }); + else unconsumedEvents.push(value); + } + + function errorHandler(err: Error) { + const promise = unconsumedPromises.shift(); + if (promise != null) promise.reject(err); + else error = err; + void closeHandler(); + } + + function closeHandler() { + // Adding event handlers + emitter.off('data', eventHandler); + emitter.off('error', errorHandler); + finished = true; + const doneResult = { value: undefined, done: finished } as const; + + for (const promise of unconsumedPromises) { + promise.resolve(doneResult); + } + + return Promise.resolve(doneResult); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/on_demand/document.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/on_demand/document.ts new file mode 100644 index 000000000..638946d64 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/on_demand/document.ts @@ -0,0 +1,338 @@ +import { + Binary, + BSON, + type BSONElement, + BSONError, + type BSONSerializeOptions, + BSONType, + getBigInt64LE, + getFloat64LE, + getInt32LE, + ObjectId, + parseToElementsToArray, + Timestamp, + toUTF8 +} from '../../../bson'; + +// eslint-disable-next-line no-restricted-syntax +const enum BSONElementOffset { + type = 0, + nameOffset = 1, + nameLength = 2, + offset = 3, + length = 4 +} + +/** @internal */ +export type JSTypeOf = { + [BSONType.null]: null; + [BSONType.undefined]: null; + [BSONType.double]: number; + [BSONType.int]: number; + [BSONType.long]: bigint; + [BSONType.timestamp]: Timestamp; + [BSONType.binData]: Binary; + [BSONType.bool]: boolean; + [BSONType.objectId]: ObjectId; + [BSONType.string]: string; + [BSONType.date]: Date; + [BSONType.object]: OnDemandDocument; + [BSONType.array]: OnDemandDocument; +}; + +/** @internal */ +type CachedBSONElement = { element: BSONElement; value: any | undefined }; + +/** @internal */ +export class OnDemandDocument { + /** + * Maps JS strings to elements and jsValues for speeding up subsequent lookups. + * - If `false` then name does not exist in the BSON document + * - If `CachedBSONElement` instance name exists + * - If `cache[name].value == null` jsValue has not yet been parsed + * - Null/Undefined values do not get cached because they are zero-length values. + */ + private readonly cache: Record = + Object.create(null); + /** Caches the index of elements that have been named */ + private readonly indexFound: Record = Object.create(null); + + /** All bson elements in this document */ + private readonly elements: ReadonlyArray; + + constructor( + /** BSON bytes, this document begins at offset */ + protected readonly bson: Uint8Array, + /** The start of the document */ + private readonly offset = 0, + /** If this is an embedded document, indicates if this was a BSON array */ + public readonly isArray = false + ) { + this.elements = parseToElementsToArray(this.bson, offset); + } + + /** Only supports basic latin strings */ + private isElementName(name: string, element: BSONElement): boolean { + const nameLength = element[BSONElementOffset.nameLength]; + const nameOffset = element[BSONElementOffset.nameOffset]; + + if (name.length !== nameLength) return false; + + for (let i = 0; i < name.length; i++) { + if (this.bson[nameOffset + i] !== name.charCodeAt(i)) return false; + } + + return true; + } + + /** + * Seeks into the elements array for an element matching the given name. + * + * @remarks + * Caching: + * - Caches the existence of a property making subsequent look ups for non-existent properties return immediately + * - Caches names mapped to elements to avoid reiterating the array and comparing the name again + * - Caches the index at which an element has been found to prevent rechecking against elements already determined to belong to another name + * + * @param name - a basic latin string name of a BSON element + * @returns + */ + private getElement(name: string | number): CachedBSONElement | null { + const cachedElement = this.cache[name]; + if (cachedElement === false) return null; + + if (cachedElement != null) { + return cachedElement; + } + + if (typeof name === 'number') { + if (this.isArray) { + if (name < this.elements.length) { + const element = this.elements[name]; + const cachedElement = { element, value: undefined }; + this.cache[name] = cachedElement; + this.indexFound[name] = true; + return cachedElement; + } else { + return null; + } + } else { + return null; + } + } + + for (let index = 0; index < this.elements.length; index++) { + const element = this.elements[index]; + + // skip this element if it has already been associated with a name + if (!this.indexFound[index] && this.isElementName(name, element)) { + const cachedElement = { element, value: undefined }; + this.cache[name] = cachedElement; + this.indexFound[index] = true; + return cachedElement; + } + } + + this.cache[name] = false; + return null; + } + + /** + * Translates BSON bytes into a javascript value. Checking `as` against the BSON element's type + * this methods returns the small subset of BSON types that the driver needs to function. + * + * @remarks + * - BSONType.null and BSONType.undefined always return null + * - If the type requested does not match this returns null + * + * @param element - The element to revive to a javascript value + * @param as - A type byte expected to be returned + */ + private toJSValue(element: BSONElement, as: T): JSTypeOf[T]; + private toJSValue(element: BSONElement, as: keyof JSTypeOf): any { + const type = element[BSONElementOffset.type]; + const offset = element[BSONElementOffset.offset]; + const length = element[BSONElementOffset.length]; + + if (as !== type) { + return null; + } + + switch (as) { + case BSONType.null: + case BSONType.undefined: + return null; + case BSONType.double: + return getFloat64LE(this.bson, offset); + case BSONType.int: + return getInt32LE(this.bson, offset); + case BSONType.long: + return getBigInt64LE(this.bson, offset); + case BSONType.bool: + return Boolean(this.bson[offset]); + case BSONType.objectId: + return new ObjectId(this.bson.subarray(offset, offset + 12)); + case BSONType.timestamp: + return new Timestamp(getBigInt64LE(this.bson, offset)); + case BSONType.string: + return toUTF8(this.bson, offset + 4, offset + length - 1, false); + case BSONType.binData: { + const totalBinarySize = getInt32LE(this.bson, offset); + const subType = this.bson[offset + 4]; + + if (subType === 2) { + const subType2BinarySize = getInt32LE(this.bson, offset + 1 + 4); + if (subType2BinarySize < 0) + throw new BSONError('Negative binary type element size found for subtype 0x02'); + if (subType2BinarySize > totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too long binary size'); + if (subType2BinarySize < totalBinarySize - 4) + throw new BSONError('Binary type with subtype 0x02 contains too short binary size'); + return new Binary( + this.bson.subarray(offset + 1 + 4 + 4, offset + 1 + 4 + 4 + subType2BinarySize), + 2 + ); + } + + return new Binary( + this.bson.subarray(offset + 1 + 4, offset + 1 + 4 + totalBinarySize), + subType + ); + } + case BSONType.date: + // Pretend this is correct. + return new Date(Number(getBigInt64LE(this.bson, offset))); + + case BSONType.object: + return new OnDemandDocument(this.bson, offset); + case BSONType.array: + return new OnDemandDocument(this.bson, offset, true); + + default: + throw new BSONError(`Unsupported BSON type: ${as}`); + } + } + + /** + * Returns the number of elements in this BSON document + */ + public size() { + return this.elements.length; + } + + /** + * Checks for the existence of an element by name. + * + * @remarks + * Uses `getElement` with the expectation that will populate caches such that a `has` call + * followed by a `getElement` call will not repeat the cost paid by the first look up. + * + * @param name - element name + */ + public has(name: string): boolean { + const cachedElement = this.cache[name]; + if (cachedElement === false) return false; + if (cachedElement != null) return true; + return this.getElement(name) != null; + } + + /** + * Turns BSON element with `name` into a javascript value. + * + * @typeParam T - must be one of the supported BSON types determined by `JSTypeOf` this will determine the return type of this function. + * @param name - the element name + * @param as - the bson type expected + * @param required - whether or not the element is expected to exist, if true this function will throw if it is not present + */ + public get( + name: string | number, + as: T, + required?: false | undefined + ): JSTypeOf[T] | null; + + /** `required` will make `get` throw if name does not exist or is null/undefined */ + public get( + name: string | number, + as: T, + required: true + ): JSTypeOf[T]; + + public get( + name: string | number, + as: T, + required?: boolean + ): JSTypeOf[T] | null { + const element = this.getElement(name); + if (element == null) { + if (required === true) { + throw new BSONError(`BSON element "${name}" is missing`); + } else { + return null; + } + } + + if (element.value == null) { + const value = this.toJSValue(element.element, as); + if (value == null) { + if (required === true) { + throw new BSONError(`BSON element "${name}" is missing`); + } else { + return null; + } + } + // It is important to never store null + element.value = value; + } + + return element.value; + } + + /** + * Supports returning int, double, long, and bool as javascript numbers + * + * @remarks + * **NOTE:** + * - Use this _only_ when you believe the potential precision loss of an int64 is acceptable + * - This method does not cache the result as Longs or booleans would be stored incorrectly + * + * @param name - element name + * @param required - throws if name does not exist + */ + public getNumber( + name: string, + required?: Req + ): Req extends true ? number : number | null; + public getNumber(name: string, required: boolean): number | null { + const maybeBool = this.get(name, BSONType.bool); + const bool = maybeBool == null ? null : maybeBool ? 1 : 0; + + const maybeLong = this.get(name, BSONType.long); + const long = maybeLong == null ? null : Number(maybeLong); + + const result = bool ?? long ?? this.get(name, BSONType.int) ?? this.get(name, BSONType.double); + + if (required === true && result == null) { + throw new BSONError(`BSON element "${name}" is missing`); + } + + return result; + } + + /** + * Deserialize this object, DOES NOT cache result so avoid multiple invocations + * @param options - BSON deserialization options + */ + public toObject(options?: BSONSerializeOptions): Record { + return BSON.deserialize(this.bson, { + ...options, + index: this.offset, + allowObjectSmallerThanBufferSize: true + }); + } + + /** Returns this document's bytes only */ + toBytes() { + const size = getInt32LE(this.bson, this.offset); + return this.bson.subarray(this.offset, this.offset + size); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/responses.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/responses.ts new file mode 100644 index 000000000..65515cbb3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/responses.ts @@ -0,0 +1,237 @@ +import { + type BSONSerializeOptions, + BSONType, + type Document, + Long, + parseToElementsToArray, + type Timestamp +} from '../../bson'; +import { MongoUnexpectedServerResponseError } from '../../error'; +import { type ClusterTime } from '../../sdam/common'; +import { type MongoDBNamespace, ns } from '../../utils'; +import { OnDemandDocument } from './on_demand/document'; + +// eslint-disable-next-line no-restricted-syntax +const enum BSONElementOffset { + type = 0, + nameOffset = 1, + nameLength = 2, + offset = 3, + length = 4 +} +/** + * Accepts a BSON payload and checks for na "ok: 0" element. + * This utility is intended to prevent calling response class constructors + * that expect the result to be a success and demand certain properties to exist. + * + * For example, a cursor response always expects a cursor embedded document. + * In order to write the class such that the properties reflect that assertion (non-null) + * we cannot invoke the subclass constructor if the BSON represents an error. + * + * @param bytes - BSON document returned from the server + */ +export function isErrorResponse(bson: Uint8Array): boolean { + const elements = parseToElementsToArray(bson, 0); + for (let eIdx = 0; eIdx < elements.length; eIdx++) { + const element = elements[eIdx]; + + if (element[BSONElementOffset.nameLength] === 2) { + const nameOffset = element[BSONElementOffset.nameOffset]; + + // 111 == "o", 107 == "k" + if (bson[nameOffset] === 111 && bson[nameOffset + 1] === 107) { + const valueOffset = element[BSONElementOffset.offset]; + const valueLength = element[BSONElementOffset.length]; + + // If any byte in the length of the ok number (works for any type) is non zero, + // then it is considered "ok: 1" + for (let i = valueOffset; i < valueOffset + valueLength; i++) { + if (bson[i] !== 0x00) return false; + } + + return true; + } + } + } + + return true; +} + +/** @internal */ +export type MongoDBResponseConstructor = { + new (bson: Uint8Array, offset?: number, isArray?: boolean): MongoDBResponse; +}; + +/** @internal */ +export class MongoDBResponse extends OnDemandDocument { + static is(value: unknown): value is MongoDBResponse { + return value instanceof MongoDBResponse; + } + + // {ok:1} + static empty = new MongoDBResponse(new Uint8Array([13, 0, 0, 0, 16, 111, 107, 0, 1, 0, 0, 0, 0])); + + /** Indicates this document is a server error */ + public get isError() { + let isError = this.ok === 0; + isError ||= this.has('errmsg'); + isError ||= this.has('code'); + isError ||= this.has('$err'); // The '$err' field is used in OP_REPLY responses + return isError; + } + + /** + * Drivers can safely assume that the `recoveryToken` field is always a BSON document but drivers MUST NOT modify the + * contents of the document. + */ + get recoveryToken(): Document | null { + return ( + this.get('recoveryToken', BSONType.object)?.toObject({ + promoteValues: false, + promoteLongs: false, + promoteBuffers: false + }) ?? null + ); + } + + /** + * The server creates a cursor in response to a snapshot find/aggregate command and reports atClusterTime within the cursor field in the response. + * For the distinct command the server adds a top-level atClusterTime field to the response. + * The atClusterTime field represents the timestamp of the read and is guaranteed to be majority committed. + */ + public get atClusterTime(): Timestamp | null { + return ( + this.get('cursor', BSONType.object)?.get('atClusterTime', BSONType.timestamp) ?? + this.get('atClusterTime', BSONType.timestamp) + ); + } + + public get operationTime(): Timestamp | null { + return this.get('operationTime', BSONType.timestamp); + } + + public get ok(): 0 | 1 { + return this.getNumber('ok') ? 1 : 0; + } + + public get $err(): string | null { + return this.get('$err', BSONType.string); + } + + public get errmsg(): string | null { + return this.get('errmsg', BSONType.string); + } + + public get code(): number | null { + return this.getNumber('code'); + } + + private clusterTime?: ClusterTime | null; + public get $clusterTime(): ClusterTime | null { + if (!('clusterTime' in this)) { + const clusterTimeDoc = this.get('$clusterTime', BSONType.object); + if (clusterTimeDoc == null) { + this.clusterTime = null; + return null; + } + const clusterTime = clusterTimeDoc.get('clusterTime', BSONType.timestamp, true); + const signature = clusterTimeDoc.get('signature', BSONType.object)?.toObject(); + // @ts-expect-error: `signature` is incorrectly typed. It is public API. + this.clusterTime = { clusterTime, signature }; + } + return this.clusterTime ?? null; + } + + public override toObject(options?: BSONSerializeOptions): Record { + const exactBSONOptions = { + useBigInt64: options?.useBigInt64, + promoteLongs: options?.promoteLongs, + promoteValues: options?.promoteValues, + promoteBuffers: options?.promoteBuffers, + bsonRegExp: options?.bsonRegExp, + raw: options?.raw ?? false, + fieldsAsRaw: options?.fieldsAsRaw ?? {}, + validation: this.parseBsonSerializationOptions(options) + }; + return super.toObject(exactBSONOptions); + } + + private parseBsonSerializationOptions(options?: { enableUtf8Validation?: boolean }): { + utf8: { writeErrors: false } | false; + } { + const enableUtf8Validation = options?.enableUtf8Validation; + if (enableUtf8Validation === false) { + return { utf8: false }; + } + return { utf8: { writeErrors: false } }; + } +} + +/** @internal */ +export class CursorResponse extends MongoDBResponse { + /** + * This supports a feature of the FindCursor. + * It is an optimization to avoid an extra getMore when the limit has been reached + */ + static emptyGetMore = { id: new Long(0), length: 0, shift: () => null }; + + static override is(value: unknown): value is CursorResponse { + return value instanceof CursorResponse || value === CursorResponse.emptyGetMore; + } + + public id: Long; + public ns: MongoDBNamespace | null = null; + public batchSize = 0; + + private batch: OnDemandDocument; + private iterated = 0; + + constructor(bytes: Uint8Array, offset?: number, isArray?: boolean) { + super(bytes, offset, isArray); + + const cursor = this.get('cursor', BSONType.object, true); + + const id = cursor.get('id', BSONType.long, true); + this.id = new Long(Number(id & 0xffff_ffffn), Number((id >> 32n) & 0xffff_ffffn)); + + const namespace = cursor.get('ns', BSONType.string); + if (namespace != null) this.ns = ns(namespace); + + if (cursor.has('firstBatch')) this.batch = cursor.get('firstBatch', BSONType.array, true); + else if (cursor.has('nextBatch')) this.batch = cursor.get('nextBatch', BSONType.array, true); + else throw new MongoUnexpectedServerResponseError('Cursor document did not contain a batch'); + + this.batchSize = this.batch.size(); + } + + get length() { + return Math.max(this.batchSize - this.iterated, 0); + } + + shift(options?: BSONSerializeOptions): any { + if (this.iterated >= this.batchSize) { + return null; + } + + const result = this.batch.get(this.iterated, BSONType.object, true) ?? null; + this.iterated += 1; + + if (options?.raw) { + return result.toBytes(); + } else { + return result.toObject(options); + } + } + + clear() { + this.iterated = this.batchSize; + } + + pushMany() { + throw new Error('pushMany Unsupported method'); + } + + push() { + throw new Error('push Unsupported method'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/shared.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/shared.ts new file mode 100644 index 000000000..98e014900 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cmap/wire_protocol/shared.ts @@ -0,0 +1,49 @@ +import { MongoInvalidArgumentError } from '../../error'; +import type { ReadPreferenceLike } from '../../read_preference'; +import { ReadPreference } from '../../read_preference'; +import { ServerType } from '../../sdam/common'; +import type { Server } from '../../sdam/server'; +import type { ServerDescription } from '../../sdam/server_description'; +import type { Topology } from '../../sdam/topology'; +import { TopologyDescription } from '../../sdam/topology_description'; +import type { Connection } from '../connection'; + +export interface ReadPreferenceOption { + readPreference?: ReadPreferenceLike; +} + +export function getReadPreference(options?: ReadPreferenceOption): ReadPreference { + // Default to command version of the readPreference. + let readPreference = options?.readPreference ?? ReadPreference.primary; + + if (typeof readPreference === 'string') { + readPreference = ReadPreference.fromString(readPreference); + } + + if (!(readPreference instanceof ReadPreference)) { + throw new MongoInvalidArgumentError( + 'Option "readPreference" must be a ReadPreference instance' + ); + } + + return readPreference; +} + +export function isSharded(topologyOrServer?: Topology | Server | Connection): boolean { + if (topologyOrServer == null) { + return false; + } + + if (topologyOrServer.description && topologyOrServer.description.type === ServerType.Mongos) { + return true; + } + + // NOTE: This is incredibly inefficient, and should be removed once command construction + // happens based on `Server` not `Topology`. + if (topologyOrServer.description && topologyOrServer.description instanceof TopologyDescription) { + const servers: ServerDescription[] = Array.from(topologyOrServer.description.servers.values()); + return servers.some((server: ServerDescription) => server.type === ServerType.Mongos); + } + + return false; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/collection.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/collection.ts new file mode 100644 index 000000000..459ecd342 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/collection.ts @@ -0,0 +1,1167 @@ +import { type BSONSerializeOptions, type Document, resolveBSONOptions } from './bson'; +import type { AnyBulkWriteOperation, BulkWriteOptions, BulkWriteResult } from './bulk/common'; +import { OrderedBulkOperation } from './bulk/ordered'; +import { UnorderedBulkOperation } from './bulk/unordered'; +import { ChangeStream, type ChangeStreamDocument, type ChangeStreamOptions } from './change_stream'; +import { AggregationCursor } from './cursor/aggregation_cursor'; +import { FindCursor } from './cursor/find_cursor'; +import { ListIndexesCursor } from './cursor/list_indexes_cursor'; +import { + ListSearchIndexesCursor, + type ListSearchIndexesOptions +} from './cursor/list_search_indexes_cursor'; +import type { Db } from './db'; +import { MongoInvalidArgumentError } from './error'; +import type { MongoClient, PkFactory } from './mongo_client'; +import type { + Filter, + Flatten, + OptionalUnlessRequiredId, + TODO_NODE_3286, + UpdateFilter, + WithId, + WithoutId +} from './mongo_types'; +import type { AggregateOptions } from './operations/aggregate'; +import { BulkWriteOperation } from './operations/bulk_write'; +import { CountOperation, type CountOptions } from './operations/count'; +import { CountDocumentsOperation, type CountDocumentsOptions } from './operations/count_documents'; +import { + DeleteManyOperation, + DeleteOneOperation, + type DeleteOptions, + type DeleteResult +} from './operations/delete'; +import { DistinctOperation, type DistinctOptions } from './operations/distinct'; +import { DropCollectionOperation, type DropCollectionOptions } from './operations/drop'; +import { + EstimatedDocumentCountOperation, + type EstimatedDocumentCountOptions +} from './operations/estimated_document_count'; +import { executeOperation } from './operations/execute_operation'; +import type { FindOptions } from './operations/find'; +import { + FindOneAndDeleteOperation, + type FindOneAndDeleteOptions, + FindOneAndReplaceOperation, + type FindOneAndReplaceOptions, + FindOneAndUpdateOperation, + type FindOneAndUpdateOptions +} from './operations/find_and_modify'; +import type { + CreateIndexesOptions, + DropIndexesOptions, + IndexDescription, + IndexDescriptionCompact, + IndexDescriptionInfo, + IndexInformationOptions, + IndexSpecification, + ListIndexesOptions +} from './operations/indexes'; +import { CreateIndexesOperation, DropIndexOperation } from './operations/indexes'; +import { + InsertManyOperation, + type InsertManyResult, + InsertOneOperation, + type InsertOneOptions, + type InsertOneResult +} from './operations/insert'; +import { IsCappedOperation } from './operations/is_capped'; +import type { Hint, OperationOptions } from './operations/operation'; +import { OptionsOperation } from './operations/options_operation'; +import { RenameOperation, type RenameOptions } from './operations/rename'; +import { + CreateSearchIndexesOperation, + type SearchIndexDescription +} from './operations/search_indexes/create'; +import { DropSearchIndexOperation } from './operations/search_indexes/drop'; +import { UpdateSearchIndexOperation } from './operations/search_indexes/update'; +import { + ReplaceOneOperation, + type ReplaceOptions, + UpdateManyOperation, + UpdateOneOperation, + type UpdateOptions, + type UpdateResult +} from './operations/update'; +import { ReadConcern, type ReadConcernLike } from './read_concern'; +import { ReadPreference, type ReadPreferenceLike } from './read_preference'; +import { + DEFAULT_PK_FACTORY, + MongoDBCollectionNamespace, + normalizeHintField, + resolveOptions +} from './utils'; +import { WriteConcern, type WriteConcernOptions } from './write_concern'; + +/** @public */ +export interface ModifyResult { + value: WithId | null; + lastErrorObject?: Document; + ok: 0 | 1; +} + +/** @public */ +export interface CollectionOptions extends BSONSerializeOptions, WriteConcernOptions { + /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcernLike; + /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */ + readPreference?: ReadPreferenceLike; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** @internal */ +export interface CollectionPrivate { + pkFactory: PkFactory; + db: Db; + options: any; + namespace: MongoDBCollectionNamespace; + readPreference?: ReadPreference; + bsonOptions: BSONSerializeOptions; + collectionHint?: Hint; + readConcern?: ReadConcern; + writeConcern?: WriteConcern; +} + +/** + * The **Collection** class is an internal class that embodies a MongoDB collection + * allowing for insert/find/update/delete and other command operation on that MongoDB collection. + * + * **COLLECTION Cannot directly be instantiated** + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * interface Pet { + * name: string; + * kind: 'dog' | 'cat' | 'fish'; + * } + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const pets = client.db().collection('pets'); + * + * const petCursor = pets.find(); + * + * for await (const pet of petCursor) { + * console.log(`${pet.name} is a ${pet.kind}!`); + * } + * ``` + */ +export class Collection { + /** @internal */ + s: CollectionPrivate; + + /** @internal */ + client: MongoClient; + + /** + * Create a new Collection instance + * @internal + */ + constructor(db: Db, name: string, options?: CollectionOptions) { + // Internal state + this.s = { + db, + options, + namespace: new MongoDBCollectionNamespace(db.databaseName, name), + pkFactory: db.options?.pkFactory ?? DEFAULT_PK_FACTORY, + readPreference: ReadPreference.fromOptions(options), + bsonOptions: resolveBSONOptions(options, db), + readConcern: ReadConcern.fromOptions(options), + writeConcern: WriteConcern.fromOptions(options) + }; + + this.client = db.client; + } + + /** + * The name of the database this collection belongs to + */ + get dbName(): string { + return this.s.namespace.db; + } + + /** + * The name of this collection + */ + get collectionName(): string { + return this.s.namespace.collection; + } + + /** + * The namespace of this collection, in the format `${this.dbName}.${this.collectionName}` + */ + get namespace(): string { + return this.fullNamespace.toString(); + } + + /** + * @internal + * + * The `MongoDBNamespace` for the collection. + */ + get fullNamespace(): MongoDBCollectionNamespace { + return this.s.namespace; + } + + /** + * The current readConcern of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get readConcern(): ReadConcern | undefined { + if (this.s.readConcern == null) { + return this.s.db.readConcern; + } + return this.s.readConcern; + } + + /** + * The current readPreference of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get readPreference(): ReadPreference | undefined { + if (this.s.readPreference == null) { + return this.s.db.readPreference; + } + + return this.s.readPreference; + } + + get bsonOptions(): BSONSerializeOptions { + return this.s.bsonOptions; + } + + /** + * The current writeConcern of the collection. If not explicitly defined for + * this collection, will be inherited from the parent DB + */ + get writeConcern(): WriteConcern | undefined { + if (this.s.writeConcern == null) { + return this.s.db.writeConcern; + } + return this.s.writeConcern; + } + + /** The current index hint for the collection */ + get hint(): Hint | undefined { + return this.s.collectionHint; + } + + set hint(v: Hint | undefined) { + this.s.collectionHint = normalizeHintField(v); + } + + /** + * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param doc - The document to insert + * @param options - Optional settings for the command + */ + async insertOne( + doc: OptionalUnlessRequiredId, + options?: InsertOneOptions + ): Promise> { + return await executeOperation( + this.client, + new InsertOneOperation( + this as TODO_NODE_3286, + doc, + resolveOptions(this, options) + ) as TODO_NODE_3286 + ); + } + + /** + * Inserts an array of documents into MongoDB. If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param docs - The documents to insert + * @param options - Optional settings for the command + */ + async insertMany( + docs: OptionalUnlessRequiredId[], + options?: BulkWriteOptions + ): Promise> { + return await executeOperation( + this.client, + new InsertManyOperation( + this as TODO_NODE_3286, + docs, + resolveOptions(this, options ?? { ordered: true }) + ) as TODO_NODE_3286 + ); + } + + /** + * Perform a bulkWrite operation without a fluent API + * + * Legal operation types are + * - `insertOne` + * - `replaceOne` + * - `updateOne` + * - `updateMany` + * - `deleteOne` + * - `deleteMany` + * + * If documents passed in do not contain the **_id** field, + * one will be added to each of the documents missing it by the driver, mutating the document. This behavior + * can be overridden by setting the **forceServerObjectId** flag. + * + * @param operations - Bulk operations to perform + * @param options - Optional settings for the command + * @throws MongoDriverError if operations is not an array + */ + async bulkWrite( + operations: AnyBulkWriteOperation[], + options?: BulkWriteOptions + ): Promise { + if (!Array.isArray(operations)) { + throw new MongoInvalidArgumentError('Argument "operations" must be an array of documents'); + } + + return await executeOperation( + this.client, + new BulkWriteOperation( + this as TODO_NODE_3286, + operations as TODO_NODE_3286, + resolveOptions(this, options ?? { ordered: true }) + ) + ); + } + + /** + * Update a single document in a collection + * + * The value of `update` can be either: + * - UpdateFilter - A document that contains update operator expressions, + * - Document[] - an aggregation pipeline. + * + * @param filter - The filter used to select the document to update + * @param update - The modifications to apply + * @param options - Optional settings for the command + */ + async updateOne( + filter: Filter, + update: UpdateFilter | Document[], + options?: UpdateOptions + ): Promise> { + return await executeOperation( + this.client, + new UpdateOneOperation( + this as TODO_NODE_3286, + filter, + update, + resolveOptions(this, options) + ) as TODO_NODE_3286 + ); + } + + /** + * Replace a document in a collection with another document + * + * @param filter - The filter used to select the document to replace + * @param replacement - The Document that replaces the matching document + * @param options - Optional settings for the command + */ + async replaceOne( + filter: Filter, + replacement: WithoutId, + options?: ReplaceOptions + ): Promise | Document> { + return await executeOperation( + this.client, + new ReplaceOneOperation( + this as TODO_NODE_3286, + filter, + replacement, + resolveOptions(this, options) + ) + ); + } + + /** + * Update multiple documents in a collection + * + * The value of `update` can be either: + * - UpdateFilter - A document that contains update operator expressions, + * - Document[] - an aggregation pipeline. + * + * @param filter - The filter used to select the document to update + * @param update - The modifications to apply + * @param options - Optional settings for the command + */ + async updateMany( + filter: Filter, + update: UpdateFilter | Document[], + options?: UpdateOptions + ): Promise> { + return await executeOperation( + this.client, + new UpdateManyOperation( + this as TODO_NODE_3286, + filter, + update, + resolveOptions(this, options) + ) as TODO_NODE_3286 + ); + } + + /** + * Delete a document from a collection + * + * @param filter - The filter used to select the document to remove + * @param options - Optional settings for the command + */ + async deleteOne( + filter: Filter = {}, + options: DeleteOptions = {} + ): Promise { + return await executeOperation( + this.client, + new DeleteOneOperation(this as TODO_NODE_3286, filter, resolveOptions(this, options)) + ); + } + + /** + * Delete multiple documents from a collection + * + * @param filter - The filter used to select the documents to remove + * @param options - Optional settings for the command + */ + async deleteMany( + filter: Filter = {}, + options: DeleteOptions = {} + ): Promise { + return await executeOperation( + this.client, + new DeleteManyOperation(this as TODO_NODE_3286, filter, resolveOptions(this, options)) + ); + } + + /** + * Rename the collection. + * + * @remarks + * This operation does not inherit options from the Db or MongoClient. + * + * @param newName - New name of of the collection. + * @param options - Optional settings for the command + */ + async rename(newName: string, options?: RenameOptions): Promise { + // Intentionally, we do not inherit options from parent for this operation. + return await executeOperation( + this.client, + new RenameOperation(this as TODO_NODE_3286, newName, { + ...options, + readPreference: ReadPreference.PRIMARY + }) as TODO_NODE_3286 + ); + } + + /** + * Drop the collection from the database, removing it permanently. New accesses will create a new collection. + * + * @param options - Optional settings for the command + */ + async drop(options?: DropCollectionOptions): Promise { + return await executeOperation( + this.client, + new DropCollectionOperation(this.s.db, this.collectionName, options) + ); + } + + /** + * Fetches the first document that matches the filter + * + * @param filter - Query for find Operation + * @param options - Optional settings for the command + */ + async findOne(): Promise | null>; + async findOne(filter: Filter): Promise | null>; + async findOne(filter: Filter, options: FindOptions): Promise | null>; + + // allow an override of the schema. + async findOne(): Promise; + async findOne(filter: Filter): Promise; + async findOne(filter: Filter, options?: FindOptions): Promise; + + async findOne( + filter: Filter = {}, + options: FindOptions = {} + ): Promise | null> { + const cursor = this.find(filter, options).limit(-1).batchSize(1); + const res = await cursor.next(); + await cursor.close(); + return res; + } + + /** + * Creates a cursor for a filter that can be used to iterate over results from MongoDB + * + * @param filter - The filter predicate. If unspecified, then all documents in the collection will match the predicate + */ + find(): FindCursor>; + find(filter: Filter, options?: FindOptions): FindCursor>; + find(filter: Filter, options?: FindOptions): FindCursor; + find(filter: Filter = {}, options: FindOptions = {}): FindCursor> { + return new FindCursor>( + this.client, + this.s.namespace, + filter, + resolveOptions(this as TODO_NODE_3286, options) + ); + } + + /** + * Returns the options of the collection. + * + * @param options - Optional settings for the command + */ + async options(options?: OperationOptions): Promise { + return await executeOperation( + this.client, + new OptionsOperation(this as TODO_NODE_3286, resolveOptions(this, options)) + ); + } + + /** + * Returns if the collection is a capped collection + * + * @param options - Optional settings for the command + */ + async isCapped(options?: OperationOptions): Promise { + return await executeOperation( + this.client, + new IsCappedOperation(this as TODO_NODE_3286, resolveOptions(this, options)) + ); + } + + /** + * Creates an index on the db and collection collection. + * + * @param indexSpec - The field name or index specification to create an index for + * @param options - Optional settings for the command + * + * @example + * ```ts + * const collection = client.db('foo').collection('bar'); + * + * await collection.createIndex({ a: 1, b: -1 }); + * + * // Alternate syntax for { c: 1, d: -1 } that ensures order of indexes + * await collection.createIndex([ [c, 1], [d, -1] ]); + * + * // Equivalent to { e: 1 } + * await collection.createIndex('e'); + * + * // Equivalent to { f: 1, g: 1 } + * await collection.createIndex(['f', 'g']) + * + * // Equivalent to { h: 1, i: -1 } + * await collection.createIndex([ { h: 1 }, { i: -1 } ]); + * + * // Equivalent to { j: 1, k: -1, l: 2d } + * await collection.createIndex(['j', ['k', -1], { l: '2d' }]) + * ``` + */ + async createIndex( + indexSpec: IndexSpecification, + options?: CreateIndexesOptions + ): Promise { + const indexes = await executeOperation( + this.client, + CreateIndexesOperation.fromIndexSpecification( + this, + this.collectionName, + indexSpec, + resolveOptions(this, options) + ) + ); + + return indexes[0]; + } + + /** + * Creates multiple indexes in the collection, this method is only supported for + * MongoDB 2.6 or higher. Earlier version of MongoDB will throw a command not supported + * error. + * + * **Note**: Unlike {@link Collection#createIndex| createIndex}, this function takes in raw index specifications. + * Index specifications are defined {@link https://www.mongodb.com/docs/manual/reference/command/createIndexes/| here}. + * + * @param indexSpecs - An array of index specifications to be created + * @param options - Optional settings for the command + * + * @example + * ```ts + * const collection = client.db('foo').collection('bar'); + * await collection.createIndexes([ + * // Simple index on field fizz + * { + * key: { fizz: 1 }, + * } + * // wildcard index + * { + * key: { '$**': 1 } + * }, + * // named index on darmok and jalad + * { + * key: { darmok: 1, jalad: -1 } + * name: 'tanagra' + * } + * ]); + * ``` + */ + async createIndexes( + indexSpecs: IndexDescription[], + options?: CreateIndexesOptions + ): Promise { + return await executeOperation( + this.client, + CreateIndexesOperation.fromIndexDescriptionArray( + this, + this.collectionName, + indexSpecs, + resolveOptions(this, { ...options, maxTimeMS: undefined }) + ) + ); + } + + /** + * Drops an index from this collection. + * + * @param indexName - Name of the index to drop. + * @param options - Optional settings for the command + */ + async dropIndex(indexName: string, options?: DropIndexesOptions): Promise { + return await executeOperation( + this.client, + new DropIndexOperation(this as TODO_NODE_3286, indexName, { + ...resolveOptions(this, options), + readPreference: ReadPreference.primary + }) + ); + } + + /** + * Drops all indexes from this collection. + * + * @param options - Optional settings for the command + */ + async dropIndexes(options?: DropIndexesOptions): Promise { + try { + await executeOperation( + this.client, + new DropIndexOperation(this as TODO_NODE_3286, '*', resolveOptions(this, options)) + ); + return true; + } catch { + return false; + } + } + + /** + * Get the list of all indexes information for the collection. + * + * @param options - Optional settings for the command + */ + listIndexes(options?: ListIndexesOptions): ListIndexesCursor { + return new ListIndexesCursor(this as TODO_NODE_3286, resolveOptions(this, options)); + } + + /** + * Checks if one or more indexes exist on the collection, fails on first non-existing index + * + * @param indexes - One or more index names to check. + * @param options - Optional settings for the command + */ + async indexExists(indexes: string | string[], options?: ListIndexesOptions): Promise { + const indexNames: string[] = Array.isArray(indexes) ? indexes : [indexes]; + const allIndexes: Set = new Set( + await this.listIndexes(options) + .map(({ name }) => name) + .toArray() + ); + return indexNames.every(name => allIndexes.has(name)); + } + + /** + * Retrieves this collections index info. + * + * @param options - Optional settings for the command + */ + indexInformation( + options: IndexInformationOptions & { full: true } + ): Promise; + indexInformation( + options: IndexInformationOptions & { full?: false } + ): Promise; + indexInformation( + options: IndexInformationOptions + ): Promise; + indexInformation(): Promise; + async indexInformation( + options?: IndexInformationOptions + ): Promise { + return await this.indexes({ + ...options, + full: options?.full ?? false + }); + } + + /** + * Gets an estimate of the count of documents in a collection using collection metadata. + * This will always run a count command on all server versions. + * + * due to an oversight in versions 5.0.0-5.0.8 of MongoDB, the count command, + * which estimatedDocumentCount uses in its implementation, was not included in v1 of + * the Stable API, and so users of the Stable API with estimatedDocumentCount are + * recommended to upgrade their server version to 5.0.9+ or set apiStrict: false to avoid + * encountering errors. + * + * @see {@link https://www.mongodb.com/docs/manual/reference/command/count/#behavior|Count: Behavior} + * @param options - Optional settings for the command + */ + async estimatedDocumentCount(options?: EstimatedDocumentCountOptions): Promise { + return await executeOperation( + this.client, + new EstimatedDocumentCountOperation(this as TODO_NODE_3286, resolveOptions(this, options)) + ); + } + + /** + * Gets the number of documents matching the filter. + * For a fast count of the total documents in a collection see {@link Collection#estimatedDocumentCount| estimatedDocumentCount}. + * **Note**: When migrating from {@link Collection#count| count} to {@link Collection#countDocuments| countDocuments} + * the following query operators must be replaced: + * + * | Operator | Replacement | + * | -------- | ----------- | + * | `$where` | [`$expr`][1] | + * | `$near` | [`$geoWithin`][2] with [`$center`][3] | + * | `$nearSphere` | [`$geoWithin`][2] with [`$centerSphere`][4] | + * + * [1]: https://www.mongodb.com/docs/manual/reference/operator/query/expr/ + * [2]: https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * [3]: https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center + * [4]: https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere + * + * @param filter - The filter for the count + * @param options - Optional settings for the command + * + * @see https://www.mongodb.com/docs/manual/reference/operator/query/expr/ + * @see https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * @see https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center + * @see https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere + */ + async countDocuments( + filter: Filter = {}, + options: CountDocumentsOptions = {} + ): Promise { + return await executeOperation( + this.client, + new CountDocumentsOperation(this as TODO_NODE_3286, filter, resolveOptions(this, options)) + ); + } + + /** + * The distinct command returns a list of distinct values for the given key across a collection. + * + * @param key - Field of the document to find distinct values for + * @param filter - The filter for filtering the set of documents to which we apply the distinct filter. + * @param options - Optional settings for the command + */ + distinct>( + key: Key + ): Promise[Key]>>>; + distinct>( + key: Key, + filter: Filter + ): Promise[Key]>>>; + distinct>( + key: Key, + filter: Filter, + options: DistinctOptions + ): Promise[Key]>>>; + + // Embedded documents overload + distinct(key: string): Promise; + distinct(key: string, filter: Filter): Promise; + distinct(key: string, filter: Filter, options: DistinctOptions): Promise; + + async distinct>( + key: Key, + filter: Filter = {}, + options: DistinctOptions = {} + ): Promise { + return await executeOperation( + this.client, + new DistinctOperation( + this as TODO_NODE_3286, + key as TODO_NODE_3286, + filter, + resolveOptions(this, options) + ) + ); + } + + /** + * Retrieve all the indexes on the collection. + * + * @param options - Optional settings for the command + */ + indexes(options: IndexInformationOptions & { full?: true }): Promise; + indexes(options: IndexInformationOptions & { full: false }): Promise; + indexes( + options: IndexInformationOptions + ): Promise; + indexes(options?: ListIndexesOptions): Promise; + async indexes( + options?: IndexInformationOptions + ): Promise { + const indexes: IndexDescriptionInfo[] = await this.listIndexes(options).toArray(); + const full = options?.full ?? true; + if (full) { + return indexes; + } + + const object: IndexDescriptionCompact = Object.fromEntries( + indexes.map(({ name, key }) => [name, Object.entries(key)]) + ); + + return object; + } + + /** + * Find a document and delete it in one atomic operation. Requires a write lock for the duration of the operation. + * + * @param filter - The filter used to select the document to remove + * @param options - Optional settings for the command + */ + async findOneAndDelete( + filter: Filter, + options: FindOneAndDeleteOptions & { includeResultMetadata: true } + ): Promise>; + async findOneAndDelete( + filter: Filter, + options: FindOneAndDeleteOptions & { includeResultMetadata: false } + ): Promise | null>; + async findOneAndDelete( + filter: Filter, + options: FindOneAndDeleteOptions + ): Promise | null>; + async findOneAndDelete(filter: Filter): Promise | null>; + async findOneAndDelete( + filter: Filter, + options?: FindOneAndDeleteOptions + ): Promise | ModifyResult | null> { + return await executeOperation( + this.client, + new FindOneAndDeleteOperation( + this as TODO_NODE_3286, + filter, + resolveOptions(this, options) + ) as TODO_NODE_3286 + ); + } + + /** + * Find a document and replace it in one atomic operation. Requires a write lock for the duration of the operation. + * + * @param filter - The filter used to select the document to replace + * @param replacement - The Document that replaces the matching document + * @param options - Optional settings for the command + */ + async findOneAndReplace( + filter: Filter, + replacement: WithoutId, + options: FindOneAndReplaceOptions & { includeResultMetadata: true } + ): Promise>; + async findOneAndReplace( + filter: Filter, + replacement: WithoutId, + options: FindOneAndReplaceOptions & { includeResultMetadata: false } + ): Promise | null>; + async findOneAndReplace( + filter: Filter, + replacement: WithoutId, + options: FindOneAndReplaceOptions + ): Promise | null>; + async findOneAndReplace( + filter: Filter, + replacement: WithoutId + ): Promise | null>; + async findOneAndReplace( + filter: Filter, + replacement: WithoutId, + options?: FindOneAndReplaceOptions + ): Promise | ModifyResult | null> { + return await executeOperation( + this.client, + new FindOneAndReplaceOperation( + this as TODO_NODE_3286, + filter, + replacement, + resolveOptions(this, options) + ) as TODO_NODE_3286 + ); + } + + /** + * Find a document and update it in one atomic operation. Requires a write lock for the duration of the operation. + * + * @param filter - The filter used to select the document to update + * @param update - Update operations to be performed on the document + * @param options - Optional settings for the command + */ + async findOneAndUpdate( + filter: Filter, + update: UpdateFilter, + options: FindOneAndUpdateOptions & { includeResultMetadata: true } + ): Promise>; + async findOneAndUpdate( + filter: Filter, + update: UpdateFilter, + options: FindOneAndUpdateOptions & { includeResultMetadata: false } + ): Promise | null>; + async findOneAndUpdate( + filter: Filter, + update: UpdateFilter, + options: FindOneAndUpdateOptions + ): Promise | null>; + async findOneAndUpdate( + filter: Filter, + update: UpdateFilter + ): Promise | null>; + async findOneAndUpdate( + filter: Filter, + update: UpdateFilter, + options?: FindOneAndUpdateOptions + ): Promise | ModifyResult | null> { + return await executeOperation( + this.client, + new FindOneAndUpdateOperation( + this as TODO_NODE_3286, + filter, + update, + resolveOptions(this, options) + ) as TODO_NODE_3286 + ); + } + + /** + * Execute an aggregation framework pipeline against the collection, needs MongoDB \>= 2.2 + * + * @param pipeline - An array of aggregation pipelines to execute + * @param options - Optional settings for the command + */ + aggregate( + pipeline: Document[] = [], + options?: AggregateOptions + ): AggregationCursor { + if (!Array.isArray(pipeline)) { + throw new MongoInvalidArgumentError( + 'Argument "pipeline" must be an array of aggregation stages' + ); + } + + return new AggregationCursor( + this.client, + this.s.namespace, + pipeline, + resolveOptions(this, options) + ); + } + + /** + * Create a new Change Stream, watching for new changes (insertions, updates, replacements, deletions, and invalidations) in this collection. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to override the schema that may be defined for this specific collection + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * @example + * By just providing the first argument I can type the change to be `ChangeStreamDocument<{ _id: number }>` + * ```ts + * collection.watch<{ _id: number }>() + * .on('change', change => console.log(change._id.toFixed(4))); + * ``` + * + * @example + * Passing a second argument provides a way to reflect the type changes caused by an advanced pipeline. + * Here, we are using a pipeline to have MongoDB filter for insert changes only and add a comment. + * No need start from scratch on the ChangeStreamInsertDocument type! + * By using an intersection we can save time and ensure defaults remain the same type! + * ```ts + * collection + * .watch & { comment: string }>([ + * { $addFields: { comment: 'big changes' } }, + * { $match: { operationType: 'insert' } } + * ]) + * .on('change', change => { + * change.comment.startsWith('big'); + * change.operationType === 'insert'; + * // No need to narrow in code because the generics did that for us! + * expectType(change.fullDocument); + * }); + * ``` + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TLocal - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch>( + pipeline: Document[] = [], + options: ChangeStreamOptions = {} + ): ChangeStream { + // Allow optionally not specifying a pipeline + if (!Array.isArray(pipeline)) { + options = pipeline; + pipeline = []; + } + + return new ChangeStream(this, pipeline, resolveOptions(this, options)); + } + + /** + * Initiate an Out of order batch write operation. All operations will be buffered into insert/update/remove commands executed out of order. + * + * @throws MongoNotConnectedError + * @remarks + * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation. + * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting. + */ + initializeUnorderedBulkOp(options?: BulkWriteOptions): UnorderedBulkOperation { + return new UnorderedBulkOperation(this as TODO_NODE_3286, resolveOptions(this, options)); + } + + /** + * Initiate an In order bulk write operation. Operations will be serially executed in the order they are added, creating a new operation for each switch in types. + * + * @throws MongoNotConnectedError + * @remarks + * **NOTE:** MongoClient must be connected prior to calling this method due to a known limitation in this legacy implementation. + * However, `collection.bulkWrite()` provides an equivalent API that does not require prior connecting. + */ + initializeOrderedBulkOp(options?: BulkWriteOptions): OrderedBulkOperation { + return new OrderedBulkOperation(this as TODO_NODE_3286, resolveOptions(this, options)); + } + + /** + * An estimated count of matching documents in the db to a filter. + * + * **NOTE:** This method has been deprecated, since it does not provide an accurate count of the documents + * in a collection. To obtain an accurate count of documents in the collection, use {@link Collection#countDocuments| countDocuments}. + * To obtain an estimated count of all documents in the collection, use {@link Collection#estimatedDocumentCount| estimatedDocumentCount}. + * + * @deprecated use {@link Collection#countDocuments| countDocuments} or {@link Collection#estimatedDocumentCount| estimatedDocumentCount} instead + * + * @param filter - The filter for the count. + * @param options - Optional settings for the command + */ + async count(filter: Filter = {}, options: CountOptions = {}): Promise { + return await executeOperation( + this.client, + new CountOperation(this.fullNamespace, filter, resolveOptions(this, options)) + ); + } + + /** + * Returns all search indexes for the current collection. + * + * @param options - The options for the list indexes operation. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + listSearchIndexes(options?: ListSearchIndexesOptions): ListSearchIndexesCursor; + /** + * Returns all search indexes for the current collection. + * + * @param name - The name of the index to search for. Only indexes with matching index names will be returned. + * @param options - The options for the list indexes operation. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + listSearchIndexes(name: string, options?: ListSearchIndexesOptions): ListSearchIndexesCursor; + listSearchIndexes( + indexNameOrOptions?: string | ListSearchIndexesOptions, + options?: ListSearchIndexesOptions + ): ListSearchIndexesCursor { + options = + typeof indexNameOrOptions === 'object' ? indexNameOrOptions : options == null ? {} : options; + + const indexName = + indexNameOrOptions == null + ? null + : typeof indexNameOrOptions === 'object' + ? null + : indexNameOrOptions; + + return new ListSearchIndexesCursor(this as TODO_NODE_3286, indexName, options); + } + + /** + * Creates a single search index for the collection. + * + * @param description - The index description for the new search index. + * @returns A promise that resolves to the name of the new search index. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + async createSearchIndex(description: SearchIndexDescription): Promise { + const [index] = await this.createSearchIndexes([description]); + return index; + } + + /** + * Creates multiple search indexes for the current collection. + * + * @param descriptions - An array of `SearchIndexDescription`s for the new search indexes. + * @returns A promise that resolves to an array of the newly created search index names. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + * @returns + */ + async createSearchIndexes(descriptions: SearchIndexDescription[]): Promise { + return await executeOperation( + this.client, + new CreateSearchIndexesOperation(this as TODO_NODE_3286, descriptions) + ); + } + + /** + * Deletes a search index by index name. + * + * @param name - The name of the search index to be deleted. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + async dropSearchIndex(name: string): Promise { + return await executeOperation( + this.client, + new DropSearchIndexOperation(this as TODO_NODE_3286, name) + ); + } + + /** + * Updates a search index by replacing the existing index definition with the provided definition. + * + * @param name - The name of the search index to update. + * @param definition - The new search index definition. + * + * @remarks Only available when used against a 7.0+ Atlas cluster. + */ + async updateSearchIndex(name: string, definition: Document): Promise { + return await executeOperation( + this.client, + new UpdateSearchIndexOperation(this as TODO_NODE_3286, name, definition) + ); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/connection_string.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/connection_string.ts new file mode 100644 index 000000000..c2abf08aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/connection_string.ts @@ -0,0 +1,1332 @@ +import * as dns from 'dns'; +import ConnectionString from 'mongodb-connection-string-url'; +import { URLSearchParams } from 'url'; + +import type { Document } from './bson'; +import { MongoCredentials } from './cmap/auth/mongo_credentials'; +import { AUTH_MECHS_AUTH_SRC_EXTERNAL, AuthMechanism } from './cmap/auth/providers'; +import { addContainerMetadata, makeClientMetadata } from './cmap/handshake/client_metadata'; +import { Compressor, type CompressorName } from './cmap/wire_protocol/compression'; +import { Encrypter } from './encrypter'; +import { + MongoAPIError, + MongoInvalidArgumentError, + MongoMissingCredentialsError, + MongoParseError +} from './error'; +import { + MongoClient, + type MongoClientOptions, + type MongoOptions, + type PkFactory, + type ServerApi, + ServerApiVersion +} from './mongo_client'; +import { + MongoLoggableComponent, + MongoLogger, + type MongoLoggerEnvOptions, + type MongoLoggerMongoClientOptions, + SeverityLevel +} from './mongo_logger'; +import { ReadConcern, type ReadConcernLevel } from './read_concern'; +import { ReadPreference, type ReadPreferenceMode } from './read_preference'; +import { ServerMonitoringMode } from './sdam/monitor'; +import type { TagSet } from './sdam/server_description'; +import { + DEFAULT_PK_FACTORY, + emitWarning, + HostAddress, + isRecord, + matchesParentDomain, + parseInteger, + setDifference, + squashError +} from './utils'; +import { type W, WriteConcern } from './write_concern'; + +const VALID_TXT_RECORDS = ['authSource', 'replicaSet', 'loadBalanced']; + +const LB_SINGLE_HOST_ERROR = 'loadBalanced option only supported with a single host in the URI'; +const LB_REPLICA_SET_ERROR = 'loadBalanced option not supported with a replicaSet option'; +const LB_DIRECT_CONNECTION_ERROR = + 'loadBalanced option not supported when directConnection is provided'; + +/** + * Lookup a `mongodb+srv` connection string, combine the parts and reparse it as a normal + * connection string. + * + * @param uri - The connection string to parse + * @param options - Optional user provided connection string options + */ +export async function resolveSRVRecord(options: MongoOptions): Promise { + if (typeof options.srvHost !== 'string') { + throw new MongoAPIError('Option "srvHost" must not be empty'); + } + + if (options.srvHost.split('.').length < 3) { + // TODO(NODE-3484): Replace with MongoConnectionStringError + throw new MongoAPIError('URI must include hostname, domain name, and tld'); + } + + // Asynchronously start TXT resolution so that we do not have to wait until + // the SRV record is resolved before starting a second DNS query. + const lookupAddress = options.srvHost; + const txtResolutionPromise = dns.promises.resolveTxt(lookupAddress); + // eslint-disable-next-line github/no-then + txtResolutionPromise.then(undefined, squashError); // rejections will be handled later + + // Resolve the SRV record and use the result as the list of hosts to connect to. + const addresses = await dns.promises.resolveSrv( + `_${options.srvServiceName}._tcp.${lookupAddress}` + ); + + if (addresses.length === 0) { + throw new MongoAPIError('No addresses found at host'); + } + + for (const { name } of addresses) { + if (!matchesParentDomain(name, lookupAddress)) { + throw new MongoAPIError('Server record does not share hostname with parent URI'); + } + } + + const hostAddresses = addresses.map(r => HostAddress.fromString(`${r.name}:${r.port ?? 27017}`)); + + validateLoadBalancedOptions(hostAddresses, options, true); + + // Use the result of resolving the TXT record and add options from there if they exist. + let record; + try { + record = await txtResolutionPromise; + } catch (error) { + if (error.code !== 'ENODATA' && error.code !== 'ENOTFOUND') { + throw error; + } + return hostAddresses; + } + + if (record.length > 1) { + throw new MongoParseError('Multiple text records not allowed'); + } + + const txtRecordOptions = new URLSearchParams(record[0].join('')); + const txtRecordOptionKeys = [...txtRecordOptions.keys()]; + if (txtRecordOptionKeys.some(key => !VALID_TXT_RECORDS.includes(key))) { + throw new MongoParseError(`Text record may only set any of: ${VALID_TXT_RECORDS.join(', ')}`); + } + + if (VALID_TXT_RECORDS.some(option => txtRecordOptions.get(option) === '')) { + throw new MongoParseError('Cannot have empty URI params in DNS TXT Record'); + } + + const source = txtRecordOptions.get('authSource') ?? undefined; + const replicaSet = txtRecordOptions.get('replicaSet') ?? undefined; + const loadBalanced = txtRecordOptions.get('loadBalanced') ?? undefined; + + if ( + !options.userSpecifiedAuthSource && + source && + options.credentials && + !AUTH_MECHS_AUTH_SRC_EXTERNAL.has(options.credentials.mechanism) + ) { + options.credentials = MongoCredentials.merge(options.credentials, { source }); + } + + if (!options.userSpecifiedReplicaSet && replicaSet) { + options.replicaSet = replicaSet; + } + + if (loadBalanced === 'true') { + options.loadBalanced = true; + } + + if (options.replicaSet && options.srvMaxHosts > 0) { + throw new MongoParseError('Cannot combine replicaSet option with srvMaxHosts'); + } + + validateLoadBalancedOptions(hostAddresses, options, true); + + return hostAddresses; +} + +/** + * Checks if TLS options are valid + * + * @param allOptions - All options provided by user or included in default options map + * @throws MongoAPIError if TLS options are invalid + */ +function checkTLSOptions(allOptions: CaseInsensitiveMap): void { + if (!allOptions) return; + const check = (a: string, b: string) => { + if (allOptions.has(a) && allOptions.has(b)) { + throw new MongoAPIError(`The '${a}' option cannot be used with the '${b}' option`); + } + }; + check('tlsInsecure', 'tlsAllowInvalidCertificates'); + check('tlsInsecure', 'tlsAllowInvalidHostnames'); + check('tlsInsecure', 'tlsDisableCertificateRevocationCheck'); + check('tlsInsecure', 'tlsDisableOCSPEndpointCheck'); + check('tlsAllowInvalidCertificates', 'tlsDisableCertificateRevocationCheck'); + check('tlsAllowInvalidCertificates', 'tlsDisableOCSPEndpointCheck'); + check('tlsDisableCertificateRevocationCheck', 'tlsDisableOCSPEndpointCheck'); +} +function getBoolean(name: string, value: unknown): boolean { + if (typeof value === 'boolean') return value; + switch (value) { + case 'true': + return true; + case 'false': + return false; + default: + throw new MongoParseError(`${name} must be either "true" or "false"`); + } +} + +function getIntFromOptions(name: string, value: unknown): number { + const parsedInt = parseInteger(value); + if (parsedInt != null) { + return parsedInt; + } + throw new MongoParseError(`Expected ${name} to be stringified int value, got: ${value}`); +} + +function getUIntFromOptions(name: string, value: unknown): number { + const parsedValue = getIntFromOptions(name, value); + if (parsedValue < 0) { + throw new MongoParseError(`${name} can only be a positive int value, got: ${value}`); + } + return parsedValue; +} + +function* entriesFromString(value: string): Generator<[string, string]> { + if (value === '') { + return; + } + const keyValuePairs = value.split(','); + for (const keyValue of keyValuePairs) { + const [key, value] = keyValue.split(/:(.*)/); + if (value == null) { + throw new MongoParseError('Cannot have undefined values in key value pairs'); + } + + yield [key, value]; + } +} + +class CaseInsensitiveMap extends Map { + constructor(entries: Array<[string, any]> = []) { + super(entries.map(([k, v]) => [k.toLowerCase(), v])); + } + override has(k: string) { + return super.has(k.toLowerCase()); + } + override get(k: string) { + return super.get(k.toLowerCase()); + } + override set(k: string, v: any) { + return super.set(k.toLowerCase(), v); + } + override delete(k: string): boolean { + return super.delete(k.toLowerCase()); + } +} + +export function parseOptions( + uri: string, + mongoClient: MongoClient | MongoClientOptions | undefined = undefined, + options: MongoClientOptions = {} +): MongoOptions { + if (mongoClient != null && !(mongoClient instanceof MongoClient)) { + options = mongoClient; + mongoClient = undefined; + } + + // validate BSONOptions + if (options.useBigInt64 && typeof options.promoteLongs === 'boolean' && !options.promoteLongs) { + throw new MongoAPIError('Must request either bigint or Long for int64 deserialization'); + } + + if (options.useBigInt64 && typeof options.promoteValues === 'boolean' && !options.promoteValues) { + throw new MongoAPIError('Must request either bigint or Long for int64 deserialization'); + } + + const url = new ConnectionString(uri); + const { hosts, isSRV } = url; + + const mongoOptions = Object.create(null); + + // Feature flags + for (const flag of Object.getOwnPropertySymbols(options)) { + if (FEATURE_FLAGS.has(flag)) { + mongoOptions[flag] = options[flag]; + } + } + + mongoOptions.hosts = isSRV ? [] : hosts.map(HostAddress.fromString); + + const urlOptions = new CaseInsensitiveMap(); + + if (url.pathname !== '/' && url.pathname !== '') { + const dbName = decodeURIComponent( + url.pathname[0] === '/' ? url.pathname.slice(1) : url.pathname + ); + if (dbName) { + urlOptions.set('dbName', [dbName]); + } + } + + if (url.username !== '') { + const auth: Document = { + username: decodeURIComponent(url.username) + }; + + if (typeof url.password === 'string') { + auth.password = decodeURIComponent(url.password); + } + + urlOptions.set('auth', [auth]); + } + + for (const key of url.searchParams.keys()) { + const values = url.searchParams.getAll(key); + + const isReadPreferenceTags = /readPreferenceTags/i.test(key); + + if (!isReadPreferenceTags && values.length > 1) { + throw new MongoInvalidArgumentError( + `URI option "${key}" cannot appear more than once in the connection string` + ); + } + + if (!isReadPreferenceTags && values.includes('')) { + throw new MongoAPIError(`URI option "${key}" cannot be specified with no value`); + } + + if (!urlOptions.has(key)) { + urlOptions.set(key, values); + } + } + + const objectOptions = new CaseInsensitiveMap( + Object.entries(options).filter(([, v]) => v != null) + ); + + // Validate options that can only be provided by one of uri or object + + if (urlOptions.has('serverApi')) { + throw new MongoParseError( + 'URI cannot contain `serverApi`, it can only be passed to the client' + ); + } + + const uriMechanismProperties = urlOptions.get('authMechanismProperties'); + if (uriMechanismProperties) { + for (const property of uriMechanismProperties) { + if (/(^|,)ALLOWED_HOSTS:/.test(property as string)) { + throw new MongoParseError( + 'Auth mechanism property ALLOWED_HOSTS is not allowed in the connection string.' + ); + } + } + } + + if (objectOptions.has('loadBalanced')) { + throw new MongoParseError('loadBalanced is only a valid option in the URI'); + } + + // All option collection + + const allProvidedOptions = new CaseInsensitiveMap(); + + const allProvidedKeys = new Set([...urlOptions.keys(), ...objectOptions.keys()]); + + for (const key of allProvidedKeys) { + const values = []; + const objectOptionValue = objectOptions.get(key); + if (objectOptionValue != null) { + values.push(objectOptionValue); + } + + const urlValues = urlOptions.get(key) ?? []; + values.push(...urlValues); + allProvidedOptions.set(key, values); + } + + if (allProvidedOptions.has('tls') || allProvidedOptions.has('ssl')) { + const tlsAndSslOpts = (allProvidedOptions.get('tls') || []) + .concat(allProvidedOptions.get('ssl') || []) + .map(getBoolean.bind(null, 'tls/ssl')); + if (new Set(tlsAndSslOpts).size !== 1) { + throw new MongoParseError('All values of tls/ssl must be the same.'); + } + } + + checkTLSOptions(allProvidedOptions); + + const unsupportedOptions = setDifference( + allProvidedKeys, + Array.from(Object.keys(OPTIONS)).map(s => s.toLowerCase()) + ); + if (unsupportedOptions.size !== 0) { + const optionWord = unsupportedOptions.size > 1 ? 'options' : 'option'; + const isOrAre = unsupportedOptions.size > 1 ? 'are' : 'is'; + throw new MongoParseError( + `${optionWord} ${Array.from(unsupportedOptions).join(', ')} ${isOrAre} not supported` + ); + } + + // Option parsing and setting + + for (const [key, descriptor] of Object.entries(OPTIONS)) { + const values = allProvidedOptions.get(key); + if (!values || values.length === 0) { + if (DEFAULT_OPTIONS.has(key)) { + setOption(mongoOptions, key, descriptor, [DEFAULT_OPTIONS.get(key)]); + } + } else { + const { deprecated } = descriptor; + if (deprecated) { + const deprecatedMsg = typeof deprecated === 'string' ? `: ${deprecated}` : ''; + emitWarning(`${key} is a deprecated option${deprecatedMsg}`); + } + + setOption(mongoOptions, key, descriptor, values); + } + } + + if (mongoOptions.credentials) { + const isGssapi = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_GSSAPI; + const isX509 = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_X509; + const isAws = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_AWS; + const isOidc = mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_OIDC; + if ( + (isGssapi || isX509) && + allProvidedOptions.has('authSource') && + mongoOptions.credentials.source !== '$external' + ) { + // If authSource was explicitly given and its incorrect, we error + throw new MongoParseError( + `authMechanism ${mongoOptions.credentials.mechanism} requires an authSource of '$external'` + ); + } + + if ( + !(isGssapi || isX509 || isAws || isOidc) && + mongoOptions.dbName && + !allProvidedOptions.has('authSource') + ) { + // inherit the dbName unless GSSAPI or X509, then silently ignore dbName + // and there was no specific authSource given + mongoOptions.credentials = MongoCredentials.merge(mongoOptions.credentials, { + source: mongoOptions.dbName + }); + } + + if (isAws && mongoOptions.credentials.username && !mongoOptions.credentials.password) { + throw new MongoMissingCredentialsError( + `When using ${mongoOptions.credentials.mechanism} password must be set when a username is specified` + ); + } + + mongoOptions.credentials.validate(); + + // Check if the only auth related option provided was authSource, if so we can remove credentials + if ( + mongoOptions.credentials.password === '' && + mongoOptions.credentials.username === '' && + mongoOptions.credentials.mechanism === AuthMechanism.MONGODB_DEFAULT && + Object.keys(mongoOptions.credentials.mechanismProperties).length === 0 + ) { + delete mongoOptions.credentials; + } + } + + if (!mongoOptions.dbName) { + // dbName default is applied here because of the credential validation above + mongoOptions.dbName = 'test'; + } + + validateLoadBalancedOptions(hosts, mongoOptions, isSRV); + + if (mongoClient && mongoOptions.autoEncryption) { + Encrypter.checkForMongoCrypt(); + mongoOptions.encrypter = new Encrypter(mongoClient, uri, options); + mongoOptions.autoEncrypter = mongoOptions.encrypter.autoEncrypter; + } + + // Potential SRV Overrides and SRV connection string validations + + mongoOptions.userSpecifiedAuthSource = + objectOptions.has('authSource') || urlOptions.has('authSource'); + mongoOptions.userSpecifiedReplicaSet = + objectOptions.has('replicaSet') || urlOptions.has('replicaSet'); + + if (isSRV) { + // SRV Record is resolved upon connecting + mongoOptions.srvHost = hosts[0]; + + if (mongoOptions.directConnection) { + throw new MongoAPIError('SRV URI does not support directConnection'); + } + + if (mongoOptions.srvMaxHosts > 0 && typeof mongoOptions.replicaSet === 'string') { + throw new MongoParseError('Cannot use srvMaxHosts option with replicaSet'); + } + + // SRV turns on TLS by default, but users can override and turn it off + const noUserSpecifiedTLS = !objectOptions.has('tls') && !urlOptions.has('tls'); + const noUserSpecifiedSSL = !objectOptions.has('ssl') && !urlOptions.has('ssl'); + if (noUserSpecifiedTLS && noUserSpecifiedSSL) { + mongoOptions.tls = true; + } + } else { + const userSpecifiedSrvOptions = + urlOptions.has('srvMaxHosts') || + objectOptions.has('srvMaxHosts') || + urlOptions.has('srvServiceName') || + objectOptions.has('srvServiceName'); + + if (userSpecifiedSrvOptions) { + throw new MongoParseError( + 'Cannot use srvMaxHosts or srvServiceName with a non-srv connection string' + ); + } + } + + if (mongoOptions.directConnection && mongoOptions.hosts.length !== 1) { + throw new MongoParseError('directConnection option requires exactly one host'); + } + + if ( + !mongoOptions.proxyHost && + (mongoOptions.proxyPort || mongoOptions.proxyUsername || mongoOptions.proxyPassword) + ) { + throw new MongoParseError('Must specify proxyHost if other proxy options are passed'); + } + + if ( + (mongoOptions.proxyUsername && !mongoOptions.proxyPassword) || + (!mongoOptions.proxyUsername && mongoOptions.proxyPassword) + ) { + throw new MongoParseError('Can only specify both of proxy username/password or neither'); + } + + const proxyOptions = ['proxyHost', 'proxyPort', 'proxyUsername', 'proxyPassword'].map( + key => urlOptions.get(key) ?? [] + ); + + if (proxyOptions.some(options => options.length > 1)) { + throw new MongoParseError( + 'Proxy options cannot be specified multiple times in the connection string' + ); + } + + const loggerFeatureFlag = Symbol.for('@@mdb.enableMongoLogger'); + mongoOptions[loggerFeatureFlag] = mongoOptions[loggerFeatureFlag] ?? false; + + let loggerEnvOptions: MongoLoggerEnvOptions = {}; + let loggerClientOptions: MongoLoggerMongoClientOptions = {}; + if (mongoOptions[loggerFeatureFlag]) { + loggerEnvOptions = { + MONGODB_LOG_COMMAND: process.env.MONGODB_LOG_COMMAND, + MONGODB_LOG_TOPOLOGY: process.env.MONGODB_LOG_TOPOLOGY, + MONGODB_LOG_SERVER_SELECTION: process.env.MONGODB_LOG_SERVER_SELECTION, + MONGODB_LOG_CONNECTION: process.env.MONGODB_LOG_CONNECTION, + MONGODB_LOG_CLIENT: process.env.MONGODB_LOG_CLIENT, + MONGODB_LOG_ALL: process.env.MONGODB_LOG_ALL, + MONGODB_LOG_MAX_DOCUMENT_LENGTH: process.env.MONGODB_LOG_MAX_DOCUMENT_LENGTH, + MONGODB_LOG_PATH: process.env.MONGODB_LOG_PATH, + ...mongoOptions[Symbol.for('@@mdb.internalLoggerConfig')] + }; + loggerClientOptions = { + mongodbLogPath: mongoOptions.mongodbLogPath, + mongodbLogComponentSeverities: mongoOptions.mongodbLogComponentSeverities, + mongodbLogMaxDocumentLength: mongoOptions.mongodbLogMaxDocumentLength + }; + } + mongoOptions.mongoLoggerOptions = MongoLogger.resolveOptions( + loggerEnvOptions, + loggerClientOptions + ); + + mongoOptions.metadata = makeClientMetadata(mongoOptions); + + // eslint-disable-next-line github/no-then + mongoOptions.extendedMetadata = addContainerMetadata(mongoOptions.metadata).then( + undefined, + squashError + ); // rejections will be handled later + + return mongoOptions; +} + +/** + * #### Throws if LB mode is true: + * - hosts contains more than one host + * - there is a replicaSet name set + * - directConnection is set + * - if srvMaxHosts is used when an srv connection string is passed in + * + * @throws MongoParseError + */ +function validateLoadBalancedOptions( + hosts: HostAddress[] | string[], + mongoOptions: MongoOptions, + isSrv: boolean +): void { + if (mongoOptions.loadBalanced) { + if (hosts.length > 1) { + throw new MongoParseError(LB_SINGLE_HOST_ERROR); + } + if (mongoOptions.replicaSet) { + throw new MongoParseError(LB_REPLICA_SET_ERROR); + } + if (mongoOptions.directConnection) { + throw new MongoParseError(LB_DIRECT_CONNECTION_ERROR); + } + + if (isSrv && mongoOptions.srvMaxHosts > 0) { + throw new MongoParseError('Cannot limit srv hosts with loadBalanced enabled'); + } + } + return; +} + +function setOption( + mongoOptions: any, + key: string, + descriptor: OptionDescriptor, + values: unknown[] +) { + const { target, type, transform } = descriptor; + const name = target ?? key; + + switch (type) { + case 'boolean': + mongoOptions[name] = getBoolean(name, values[0]); + break; + case 'int': + mongoOptions[name] = getIntFromOptions(name, values[0]); + break; + case 'uint': + mongoOptions[name] = getUIntFromOptions(name, values[0]); + break; + case 'string': + if (values[0] == null) { + break; + } + mongoOptions[name] = String(values[0]); + break; + case 'record': + if (!isRecord(values[0])) { + throw new MongoParseError(`${name} must be an object`); + } + mongoOptions[name] = values[0]; + break; + case 'any': + mongoOptions[name] = values[0]; + break; + default: { + if (!transform) { + throw new MongoParseError('Descriptors missing a type must define a transform'); + } + const transformValue = transform({ name, options: mongoOptions, values }); + mongoOptions[name] = transformValue; + break; + } + } +} + +interface OptionDescriptor { + target?: string; + type?: 'boolean' | 'int' | 'uint' | 'record' | 'string' | 'any'; + default?: any; + + deprecated?: boolean | string; + /** + * @param name - the original option name + * @param options - the options so far for resolution + * @param values - the possible values in precedence order + */ + transform?: (args: { name: string; options: MongoOptions; values: unknown[] }) => unknown; +} + +export const OPTIONS = { + appName: { + type: 'string' + }, + auth: { + target: 'credentials', + transform({ name, options, values: [value] }): MongoCredentials { + if (!isRecord(value, ['username', 'password'] as const)) { + throw new MongoParseError( + `${name} must be an object with 'username' and 'password' properties` + ); + } + return MongoCredentials.merge(options.credentials, { + username: value.username, + password: value.password + }); + } + }, + authMechanism: { + target: 'credentials', + transform({ options, values: [value] }): MongoCredentials { + const mechanisms = Object.values(AuthMechanism); + const [mechanism] = mechanisms.filter(m => m.match(RegExp(String.raw`\b${value}\b`, 'i'))); + if (!mechanism) { + throw new MongoParseError(`authMechanism one of ${mechanisms}, got ${value}`); + } + let source = options.credentials?.source; + if ( + mechanism === AuthMechanism.MONGODB_PLAIN || + AUTH_MECHS_AUTH_SRC_EXTERNAL.has(mechanism) + ) { + // some mechanisms have '$external' as the Auth Source + source = '$external'; + } + + let password = options.credentials?.password; + if (mechanism === AuthMechanism.MONGODB_X509 && password === '') { + password = undefined; + } + return MongoCredentials.merge(options.credentials, { + mechanism, + source, + password + }); + } + }, + authMechanismProperties: { + target: 'credentials', + transform({ options, values }): MongoCredentials { + // We can have a combination of options passed in the URI and options passed + // as an object to the MongoClient. So we must transform the string options + // as well as merge them together with a potentially provided object. + let mechanismProperties = Object.create(null); + + for (const optionValue of values) { + if (typeof optionValue === 'string') { + for (const [key, value] of entriesFromString(optionValue)) { + try { + mechanismProperties[key] = getBoolean(key, value); + } catch { + mechanismProperties[key] = value; + } + } + } else { + if (!isRecord(optionValue)) { + throw new MongoParseError('AuthMechanismProperties must be an object'); + } + mechanismProperties = { ...optionValue }; + } + } + return MongoCredentials.merge(options.credentials, { + mechanismProperties + }); + } + }, + authSource: { + target: 'credentials', + transform({ options, values: [value] }): MongoCredentials { + const source = String(value); + return MongoCredentials.merge(options.credentials, { source }); + } + }, + autoEncryption: { + type: 'record' + }, + bsonRegExp: { + type: 'boolean' + }, + serverApi: { + target: 'serverApi', + transform({ values: [version] }): ServerApi { + const serverApiToValidate = + typeof version === 'string' ? ({ version } as ServerApi) : (version as ServerApi); + const versionToValidate = serverApiToValidate && serverApiToValidate.version; + if (!versionToValidate) { + throw new MongoParseError( + `Invalid \`serverApi\` property; must specify a version from the following enum: ["${Object.values( + ServerApiVersion + ).join('", "')}"]` + ); + } + if (!Object.values(ServerApiVersion).some(v => v === versionToValidate)) { + throw new MongoParseError( + `Invalid server API version=${versionToValidate}; must be in the following enum: ["${Object.values( + ServerApiVersion + ).join('", "')}"]` + ); + } + return serverApiToValidate; + } + }, + checkKeys: { + type: 'boolean' + }, + compressors: { + default: 'none', + target: 'compressors', + transform({ values }) { + const compressionList = new Set(); + for (const compVal of values as (CompressorName[] | string)[]) { + const compValArray = typeof compVal === 'string' ? compVal.split(',') : compVal; + if (!Array.isArray(compValArray)) { + throw new MongoInvalidArgumentError( + 'compressors must be an array or a comma-delimited list of strings' + ); + } + for (const c of compValArray) { + if (Object.keys(Compressor).includes(String(c))) { + compressionList.add(String(c)); + } else { + throw new MongoInvalidArgumentError( + `${c} is not a valid compression mechanism. Must be one of: ${Object.keys( + Compressor + )}.` + ); + } + } + } + return [...compressionList]; + } + }, + connectTimeoutMS: { + default: 30000, + type: 'uint' + }, + dbName: { + type: 'string' + }, + directConnection: { + default: false, + type: 'boolean' + }, + driverInfo: { + default: {}, + type: 'record' + }, + enableUtf8Validation: { type: 'boolean', default: true }, + family: { + transform({ name, values: [value] }): 4 | 6 { + const transformValue = getIntFromOptions(name, value); + if (transformValue === 4 || transformValue === 6) { + return transformValue; + } + throw new MongoParseError(`Option 'family' must be 4 or 6 got ${transformValue}.`); + } + }, + fieldsAsRaw: { + type: 'record' + }, + forceServerObjectId: { + default: false, + type: 'boolean' + }, + fsync: { + deprecated: 'Please use journal instead', + target: 'writeConcern', + transform({ name, options, values: [value] }): WriteConcern { + const wc = WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + fsync: getBoolean(name, value) + } + }); + if (!wc) throw new MongoParseError(`Unable to make a writeConcern from fsync=${value}`); + return wc; + } + } as OptionDescriptor, + heartbeatFrequencyMS: { + default: 10000, + type: 'uint' + }, + ignoreUndefined: { + type: 'boolean' + }, + j: { + deprecated: 'Please use journal instead', + target: 'writeConcern', + transform({ name, options, values: [value] }): WriteConcern { + const wc = WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + journal: getBoolean(name, value) + } + }); + if (!wc) throw new MongoParseError(`Unable to make a writeConcern from journal=${value}`); + return wc; + } + } as OptionDescriptor, + journal: { + target: 'writeConcern', + transform({ name, options, values: [value] }): WriteConcern { + const wc = WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + journal: getBoolean(name, value) + } + }); + if (!wc) throw new MongoParseError(`Unable to make a writeConcern from journal=${value}`); + return wc; + } + }, + loadBalanced: { + default: false, + type: 'boolean' + }, + localThresholdMS: { + default: 15, + type: 'uint' + }, + maxConnecting: { + default: 2, + transform({ name, values: [value] }): number { + const maxConnecting = getUIntFromOptions(name, value); + if (maxConnecting === 0) { + throw new MongoInvalidArgumentError('maxConnecting must be > 0 if specified'); + } + return maxConnecting; + } + }, + maxIdleTimeMS: { + default: 0, + type: 'uint' + }, + maxPoolSize: { + default: 100, + type: 'uint' + }, + maxStalenessSeconds: { + target: 'readPreference', + transform({ name, options, values: [value] }) { + const maxStalenessSeconds = getUIntFromOptions(name, value); + if (options.readPreference) { + return ReadPreference.fromOptions({ + readPreference: { ...options.readPreference, maxStalenessSeconds } + }); + } else { + return new ReadPreference('secondary', undefined, { maxStalenessSeconds }); + } + } + }, + minInternalBufferSize: { + type: 'uint' + }, + minPoolSize: { + default: 0, + type: 'uint' + }, + minHeartbeatFrequencyMS: { + default: 500, + type: 'uint' + }, + monitorCommands: { + default: false, + type: 'boolean' + }, + name: { + target: 'driverInfo', + transform({ values: [value], options }) { + return { ...options.driverInfo, name: String(value) }; + } + } as OptionDescriptor, + noDelay: { + default: true, + type: 'boolean' + }, + pkFactory: { + default: DEFAULT_PK_FACTORY, + transform({ values: [value] }): PkFactory { + if (isRecord(value, ['createPk'] as const) && typeof value.createPk === 'function') { + return value as PkFactory; + } + throw new MongoParseError( + `Option pkFactory must be an object with a createPk function, got ${value}` + ); + } + }, + promoteBuffers: { + type: 'boolean' + }, + promoteLongs: { + type: 'boolean' + }, + promoteValues: { + type: 'boolean' + }, + useBigInt64: { + type: 'boolean' + }, + proxyHost: { + type: 'string' + }, + proxyPassword: { + type: 'string' + }, + proxyPort: { + type: 'uint' + }, + proxyUsername: { + type: 'string' + }, + raw: { + default: false, + type: 'boolean' + }, + readConcern: { + transform({ values: [value], options }) { + if (value instanceof ReadConcern || isRecord(value, ['level'] as const)) { + return ReadConcern.fromOptions({ ...options.readConcern, ...value } as any); + } + throw new MongoParseError(`ReadConcern must be an object, got ${JSON.stringify(value)}`); + } + }, + readConcernLevel: { + target: 'readConcern', + transform({ values: [level], options }) { + return ReadConcern.fromOptions({ + ...options.readConcern, + level: level as ReadConcernLevel + }); + } + }, + readPreference: { + default: ReadPreference.primary, + transform({ values: [value], options }) { + if (value instanceof ReadPreference) { + return ReadPreference.fromOptions({ + readPreference: { ...options.readPreference, ...value }, + ...value + } as any); + } + if (isRecord(value, ['mode'] as const)) { + const rp = ReadPreference.fromOptions({ + readPreference: { ...options.readPreference, ...value }, + ...value + } as any); + if (rp) return rp; + else throw new MongoParseError(`Cannot make read preference from ${JSON.stringify(value)}`); + } + if (typeof value === 'string') { + const rpOpts = { + hedge: options.readPreference?.hedge, + maxStalenessSeconds: options.readPreference?.maxStalenessSeconds + }; + return new ReadPreference( + value as ReadPreferenceMode, + options.readPreference?.tags, + rpOpts + ); + } + throw new MongoParseError(`Unknown ReadPreference value: ${value}`); + } + }, + readPreferenceTags: { + target: 'readPreference', + transform({ + values, + options + }: { + values: Array[]>; + options: MongoClientOptions; + }) { + const tags: Array> = Array.isArray(values[0]) + ? values[0] + : (values as Array); + const readPreferenceTags = []; + for (const tag of tags) { + const readPreferenceTag: TagSet = Object.create(null); + if (typeof tag === 'string') { + for (const [k, v] of entriesFromString(tag)) { + readPreferenceTag[k] = v; + } + } + if (isRecord(tag)) { + for (const [k, v] of Object.entries(tag)) { + readPreferenceTag[k] = v; + } + } + readPreferenceTags.push(readPreferenceTag); + } + return ReadPreference.fromOptions({ + readPreference: options.readPreference, + readPreferenceTags + }); + } + }, + replicaSet: { + type: 'string' + }, + retryReads: { + default: true, + type: 'boolean' + }, + retryWrites: { + default: true, + type: 'boolean' + }, + serializeFunctions: { + type: 'boolean' + }, + serverMonitoringMode: { + default: 'auto', + transform({ values: [value] }) { + if (!Object.values(ServerMonitoringMode).includes(value as any)) { + throw new MongoParseError( + 'serverMonitoringMode must be one of `auto`, `poll`, or `stream`' + ); + } + return value; + } + }, + serverSelectionTimeoutMS: { + default: 30000, + type: 'uint' + }, + servername: { + type: 'string' + }, + socketTimeoutMS: { + default: 0, + type: 'uint' + }, + srvMaxHosts: { + type: 'uint', + default: 0 + }, + srvServiceName: { + type: 'string', + default: 'mongodb' + }, + ssl: { + target: 'tls', + type: 'boolean' + }, + timeoutMS: { + type: 'uint' + }, + tls: { + type: 'boolean' + }, + tlsAllowInvalidCertificates: { + target: 'rejectUnauthorized', + transform({ name, values: [value] }) { + // allowInvalidCertificates is the inverse of rejectUnauthorized + return !getBoolean(name, value); + } + }, + tlsAllowInvalidHostnames: { + target: 'checkServerIdentity', + transform({ name, values: [value] }) { + // tlsAllowInvalidHostnames means setting the checkServerIdentity function to a noop + return getBoolean(name, value) ? () => undefined : undefined; + } + }, + tlsCAFile: { + type: 'string' + }, + tlsCRLFile: { + type: 'string' + }, + tlsCertificateKeyFile: { + type: 'string' + }, + tlsCertificateKeyFilePassword: { + target: 'passphrase', + type: 'any' + }, + tlsInsecure: { + transform({ name, options, values: [value] }) { + const tlsInsecure = getBoolean(name, value); + if (tlsInsecure) { + options.checkServerIdentity = () => undefined; + options.rejectUnauthorized = false; + } else { + options.checkServerIdentity = options.tlsAllowInvalidHostnames + ? () => undefined + : undefined; + options.rejectUnauthorized = options.tlsAllowInvalidCertificates ? false : true; + } + return tlsInsecure; + } + }, + w: { + target: 'writeConcern', + transform({ values: [value], options }) { + return WriteConcern.fromOptions({ writeConcern: { ...options.writeConcern, w: value as W } }); + } + }, + waitQueueTimeoutMS: { + default: 0, + type: 'uint' + }, + writeConcern: { + target: 'writeConcern', + transform({ values: [value], options }) { + if (isRecord(value) || value instanceof WriteConcern) { + return WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + ...value + } + }); + } else if (value === 'majority' || typeof value === 'number') { + return WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + w: value + } + }); + } + + throw new MongoParseError(`Invalid WriteConcern cannot parse: ${JSON.stringify(value)}`); + } + }, + wtimeout: { + deprecated: 'Please use wtimeoutMS instead', + target: 'writeConcern', + transform({ values: [value], options }) { + const wc = WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + wtimeout: getUIntFromOptions('wtimeout', value) + } + }); + if (wc) return wc; + throw new MongoParseError(`Cannot make WriteConcern from wtimeout`); + } + } as OptionDescriptor, + wtimeoutMS: { + target: 'writeConcern', + transform({ values: [value], options }) { + const wc = WriteConcern.fromOptions({ + writeConcern: { + ...options.writeConcern, + wtimeoutMS: getUIntFromOptions('wtimeoutMS', value) + } + }); + if (wc) return wc; + throw new MongoParseError(`Cannot make WriteConcern from wtimeout`); + } + }, + zlibCompressionLevel: { + default: 0, + type: 'int' + }, + // Custom types for modifying core behavior + connectionType: { type: 'any' }, + srvPoller: { type: 'any' }, + // Accepted NodeJS Options + minDHSize: { type: 'any' }, + pskCallback: { type: 'any' }, + secureContext: { type: 'any' }, + enableTrace: { type: 'any' }, + requestCert: { type: 'any' }, + rejectUnauthorized: { type: 'any' }, + checkServerIdentity: { type: 'any' }, + ALPNProtocols: { type: 'any' }, + SNICallback: { type: 'any' }, + session: { type: 'any' }, + requestOCSP: { type: 'any' }, + localAddress: { type: 'any' }, + localPort: { type: 'any' }, + hints: { type: 'any' }, + lookup: { type: 'any' }, + ca: { type: 'any' }, + cert: { type: 'any' }, + ciphers: { type: 'any' }, + crl: { type: 'any' }, + ecdhCurve: { type: 'any' }, + key: { type: 'any' }, + passphrase: { type: 'any' }, + pfx: { type: 'any' }, + secureProtocol: { type: 'any' }, + index: { type: 'any' }, + // Legacy options from v3 era + useNewUrlParser: { + type: 'boolean', + deprecated: + 'useNewUrlParser has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version' + } as OptionDescriptor, + useUnifiedTopology: { + type: 'boolean', + deprecated: + 'useUnifiedTopology has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version' + } as OptionDescriptor, + // MongoLogger + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogPath: { + transform({ values: [value] }) { + if ( + !( + (typeof value === 'string' && ['stderr', 'stdout'].includes(value)) || + (value && + typeof value === 'object' && + 'write' in value && + typeof value.write === 'function') + ) + ) { + throw new MongoAPIError( + `Option 'mongodbLogPath' must be of type 'stderr' | 'stdout' | MongoDBLogWritable` + ); + } + return value; + } + }, + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogComponentSeverities: { + transform({ values: [value] }) { + if (typeof value !== 'object' || !value) { + throw new MongoAPIError(`Option 'mongodbLogComponentSeverities' must be a non-null object`); + } + for (const [k, v] of Object.entries(value)) { + if (typeof v !== 'string' || typeof k !== 'string') { + throw new MongoAPIError( + `User input for option 'mongodbLogComponentSeverities' object cannot include a non-string key or value` + ); + } + if (!Object.values(MongoLoggableComponent).some(val => val === k) && k !== 'default') { + throw new MongoAPIError( + `User input for option 'mongodbLogComponentSeverities' contains invalid key: ${k}` + ); + } + if (!Object.values(SeverityLevel).some(val => val === v)) { + throw new MongoAPIError( + `Option 'mongodbLogComponentSeverities' does not support ${v} as a value for ${k}` + ); + } + } + return value; + } + }, + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogMaxDocumentLength: { type: 'uint' } +} as Record; + +export const DEFAULT_OPTIONS = new CaseInsensitiveMap( + Object.entries(OPTIONS) + .filter(([, descriptor]) => descriptor.default != null) + .map(([k, d]) => [k, d.default]) +); + +/** + * Set of permitted feature flags + * @internal + */ +export const FEATURE_FLAGS = new Set([ + Symbol.for('@@mdb.skipPingOnConnect'), + Symbol.for('@@mdb.enableMongoLogger'), + Symbol.for('@@mdb.internalLoggerConfig') +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/constants.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/constants.ts new file mode 100644 index 000000000..293749cad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/constants.ts @@ -0,0 +1,167 @@ +export const SYSTEM_NAMESPACE_COLLECTION = 'system.namespaces'; +export const SYSTEM_INDEX_COLLECTION = 'system.indexes'; +export const SYSTEM_PROFILE_COLLECTION = 'system.profile'; +export const SYSTEM_USER_COLLECTION = 'system.users'; +export const SYSTEM_COMMAND_COLLECTION = '$cmd'; +export const SYSTEM_JS_COLLECTION = 'system.js'; + +// events +export const ERROR = 'error' as const; +export const TIMEOUT = 'timeout' as const; +export const CLOSE = 'close' as const; +export const OPEN = 'open' as const; +export const CONNECT = 'connect' as const; +export const CLOSED = 'closed' as const; +export const ENDED = 'ended' as const; +export const MESSAGE = 'message' as const; +export const PINNED = 'pinned' as const; +export const UNPINNED = 'unpinned' as const; +export const DESCRIPTION_RECEIVED = 'descriptionReceived'; +/** @internal */ +export const SERVER_OPENING = 'serverOpening' as const; +/** @internal */ +export const SERVER_CLOSED = 'serverClosed' as const; +/** @internal */ +export const SERVER_DESCRIPTION_CHANGED = 'serverDescriptionChanged' as const; +/** @internal */ +export const TOPOLOGY_OPENING = 'topologyOpening' as const; +/** @internal */ +export const TOPOLOGY_CLOSED = 'topologyClosed' as const; +/** @internal */ +export const TOPOLOGY_DESCRIPTION_CHANGED = 'topologyDescriptionChanged' as const; +/** @internal */ +export const SERVER_SELECTION_STARTED = 'serverSelectionStarted' as const; +/** @internal */ +export const SERVER_SELECTION_FAILED = 'serverSelectionFailed' as const; +/** @internal */ +export const SERVER_SELECTION_SUCCEEDED = 'serverSelectionSucceeded' as const; +/** @internal */ +export const WAITING_FOR_SUITABLE_SERVER = 'waitingForSuitableServer' as const; +/** @internal */ +export const CONNECTION_POOL_CREATED = 'connectionPoolCreated' as const; +/** @internal */ +export const CONNECTION_POOL_CLOSED = 'connectionPoolClosed' as const; +/** @internal */ +export const CONNECTION_POOL_CLEARED = 'connectionPoolCleared' as const; +/** @internal */ +export const CONNECTION_POOL_READY = 'connectionPoolReady' as const; +/** @internal */ +export const CONNECTION_CREATED = 'connectionCreated' as const; +/** @internal */ +export const CONNECTION_READY = 'connectionReady' as const; +/** @internal */ +export const CONNECTION_CLOSED = 'connectionClosed' as const; +/** @internal */ +export const CONNECTION_CHECK_OUT_STARTED = 'connectionCheckOutStarted' as const; +/** @internal */ +export const CONNECTION_CHECK_OUT_FAILED = 'connectionCheckOutFailed' as const; +/** @internal */ +export const CONNECTION_CHECKED_OUT = 'connectionCheckedOut' as const; +/** @internal */ +export const CONNECTION_CHECKED_IN = 'connectionCheckedIn' as const; +export const CLUSTER_TIME_RECEIVED = 'clusterTimeReceived' as const; +/** @internal */ +export const COMMAND_STARTED = 'commandStarted' as const; +/** @internal */ +export const COMMAND_SUCCEEDED = 'commandSucceeded' as const; +/** @internal */ +export const COMMAND_FAILED = 'commandFailed' as const; +/** @internal */ +export const SERVER_HEARTBEAT_STARTED = 'serverHeartbeatStarted' as const; +/** @internal */ +export const SERVER_HEARTBEAT_SUCCEEDED = 'serverHeartbeatSucceeded' as const; +/** @internal */ +export const SERVER_HEARTBEAT_FAILED = 'serverHeartbeatFailed' as const; +export const RESPONSE = 'response' as const; +export const MORE = 'more' as const; +export const INIT = 'init' as const; +export const CHANGE = 'change' as const; +export const END = 'end' as const; +export const RESUME_TOKEN_CHANGED = 'resumeTokenChanged' as const; + +/** @public */ +export const HEARTBEAT_EVENTS = Object.freeze([ + SERVER_HEARTBEAT_STARTED, + SERVER_HEARTBEAT_SUCCEEDED, + SERVER_HEARTBEAT_FAILED +] as const); + +/** @public */ +export const CMAP_EVENTS = Object.freeze([ + CONNECTION_POOL_CREATED, + CONNECTION_POOL_READY, + CONNECTION_POOL_CLEARED, + CONNECTION_POOL_CLOSED, + CONNECTION_CREATED, + CONNECTION_READY, + CONNECTION_CLOSED, + CONNECTION_CHECK_OUT_STARTED, + CONNECTION_CHECK_OUT_FAILED, + CONNECTION_CHECKED_OUT, + CONNECTION_CHECKED_IN +] as const); + +/** @public */ +export const TOPOLOGY_EVENTS = Object.freeze([ + SERVER_OPENING, + SERVER_CLOSED, + SERVER_DESCRIPTION_CHANGED, + TOPOLOGY_OPENING, + TOPOLOGY_CLOSED, + TOPOLOGY_DESCRIPTION_CHANGED, + ERROR, + TIMEOUT, + CLOSE +] as const); + +/** @public */ +export const APM_EVENTS = Object.freeze([ + COMMAND_STARTED, + COMMAND_SUCCEEDED, + COMMAND_FAILED +] as const); + +/** + * All events that we relay to the `Topology` + * @internal + */ +export const SERVER_RELAY_EVENTS = Object.freeze([ + SERVER_HEARTBEAT_STARTED, + SERVER_HEARTBEAT_SUCCEEDED, + SERVER_HEARTBEAT_FAILED, + COMMAND_STARTED, + COMMAND_SUCCEEDED, + COMMAND_FAILED, + ...CMAP_EVENTS +] as const); + +/** + * All events we listen to from `Server` instances, but do not forward to the client + * @internal + */ +export const LOCAL_SERVER_EVENTS = Object.freeze([ + CONNECT, + DESCRIPTION_RECEIVED, + CLOSED, + ENDED +] as const); + +/** @public */ +export const MONGO_CLIENT_EVENTS = Object.freeze([ + ...CMAP_EVENTS, + ...APM_EVENTS, + ...TOPOLOGY_EVENTS, + ...HEARTBEAT_EVENTS +] as const); + +/** + * @internal + * The legacy hello command that was deprecated in MongoDB 5.0. + */ +export const LEGACY_HELLO_COMMAND = 'ismaster'; + +/** + * @internal + * The legacy hello command that was deprecated in MongoDB 5.0. + */ +export const LEGACY_HELLO_COMMAND_CAMEL_CASE = 'isMaster'; diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/abstract_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/abstract_cursor.ts new file mode 100644 index 000000000..c4f349500 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/abstract_cursor.ts @@ -0,0 +1,1011 @@ +import { Readable, Transform } from 'stream'; + +import { type BSONSerializeOptions, type Document, Long, pluckBSONSerializeOptions } from '../bson'; +import { CursorResponse } from '../cmap/wire_protocol/responses'; +import { + type AnyError, + MongoAPIError, + MongoCursorExhaustedError, + MongoCursorInUseError, + MongoInvalidArgumentError, + MongoNetworkError, + MongoRuntimeError, + MongoTailableCursorError +} from '../error'; +import type { MongoClient } from '../mongo_client'; +import { type TODO_NODE_3286, TypedEventEmitter } from '../mongo_types'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import { GetMoreOperation } from '../operations/get_more'; +import { KillCursorsOperation } from '../operations/kill_cursors'; +import { ReadConcern, type ReadConcernLike } from '../read_concern'; +import { ReadPreference, type ReadPreferenceLike } from '../read_preference'; +import type { Server } from '../sdam/server'; +import { ClientSession, maybeClearPinnedConnection } from '../sessions'; +import { List, type MongoDBNamespace, ns, squashError } from '../utils'; + +/** @internal */ +const kId = Symbol('id'); +/** @internal */ +const kDocuments = Symbol('documents'); +/** @internal */ +const kServer = Symbol('server'); +/** @internal */ +const kNamespace = Symbol('namespace'); +/** @internal */ +const kClient = Symbol('client'); +/** @internal */ +const kSession = Symbol('session'); +/** @internal */ +const kOptions = Symbol('options'); +/** @internal */ +const kTransform = Symbol('transform'); +/** @internal */ +const kInitialized = Symbol('initialized'); +/** @internal */ +const kClosed = Symbol('closed'); +/** @internal */ +const kKilled = Symbol('killed'); +/** @internal */ +const kInit = Symbol('kInit'); + +/** @public */ +export const CURSOR_FLAGS = [ + 'tailable', + 'oplogReplay', + 'noCursorTimeout', + 'awaitData', + 'exhaust', + 'partial' +] as const; + +/** @public */ +export interface CursorStreamOptions { + /** A transformation method applied to each document emitted by the stream */ + transform?(this: void, doc: Document): Document; +} + +/** @public */ +export type CursorFlag = (typeof CURSOR_FLAGS)[number]; + +/** @public */ +export interface AbstractCursorOptions extends BSONSerializeOptions { + session?: ClientSession; + readPreference?: ReadPreferenceLike; + readConcern?: ReadConcernLike; + /** + * Specifies the number of documents to return in each response from MongoDB + */ + batchSize?: number; + /** + * When applicable `maxTimeMS` controls the amount of time the initial command + * that constructs a cursor should take. (ex. find, aggregate, listCollections) + */ + maxTimeMS?: number; + /** + * When applicable `maxAwaitTimeMS` controls the amount of time subsequent getMores + * that a cursor uses to fetch more data should take. (ex. cursor.next()) + */ + maxAwaitTimeMS?: number; + /** + * Comment to apply to the operation. + * + * In server versions pre-4.4, 'comment' must be string. A server + * error will be thrown if any other type is provided. + * + * In server versions 4.4 and above, 'comment' can be any valid BSON type. + */ + comment?: unknown; + /** + * By default, MongoDB will automatically close a cursor when the + * client has exhausted all results in the cursor. However, for [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections) + * you may use a Tailable Cursor that remains open after the client exhausts + * the results in the initial cursor. + */ + tailable?: boolean; + /** + * If awaitData is set to true, when the cursor reaches the end of the capped collection, + * MongoDB blocks the query thread for a period of time waiting for new data to arrive. + * When new data is inserted into the capped collection, the blocked thread is signaled + * to wake up and return the next batch to the client. + */ + awaitData?: boolean; + noCursorTimeout?: boolean; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** @internal */ +export type InternalAbstractCursorOptions = Omit & { + // resolved + readPreference: ReadPreference; + readConcern?: ReadConcern; + + // cursor flags, some are deprecated + oplogReplay?: boolean; + exhaust?: boolean; + partial?: boolean; +}; + +/** @public */ +export type AbstractCursorEvents = { + [AbstractCursor.CLOSE](): void; +}; + +/** @public */ +export abstract class AbstractCursor< + TSchema = any, + CursorEvents extends AbstractCursorEvents = AbstractCursorEvents +> extends TypedEventEmitter { + /** @internal */ + [kId]: Long | null; + /** @internal */ + [kSession]: ClientSession; + /** @internal */ + [kServer]?: Server; + /** @internal */ + [kNamespace]: MongoDBNamespace; + /** @internal */ + [kDocuments]: { + length: number; + shift(bsonOptions?: any): TSchema | null; + clear(): void; + pushMany(many: Iterable): void; + push(item: TSchema): void; + }; + /** @internal */ + [kClient]: MongoClient; + /** @internal */ + [kTransform]?: (doc: TSchema) => any; + /** @internal */ + [kInitialized]: boolean; + /** @internal */ + [kClosed]: boolean; + /** @internal */ + [kKilled]: boolean; + /** @internal */ + [kOptions]: InternalAbstractCursorOptions; + + /** @event */ + static readonly CLOSE = 'close' as const; + + /** @internal */ + constructor( + client: MongoClient, + namespace: MongoDBNamespace, + options: AbstractCursorOptions = {} + ) { + super(); + + if (!client.s.isMongoClient) { + throw new MongoRuntimeError('Cursor must be constructed with MongoClient'); + } + this[kClient] = client; + this[kNamespace] = namespace; + this[kId] = null; + this[kDocuments] = new List(); + this[kInitialized] = false; + this[kClosed] = false; + this[kKilled] = false; + this[kOptions] = { + readPreference: + options.readPreference && options.readPreference instanceof ReadPreference + ? options.readPreference + : ReadPreference.primary, + ...pluckBSONSerializeOptions(options) + }; + this[kOptions].timeoutMS = options.timeoutMS; + + const readConcern = ReadConcern.fromOptions(options); + if (readConcern) { + this[kOptions].readConcern = readConcern; + } + + if (typeof options.batchSize === 'number') { + this[kOptions].batchSize = options.batchSize; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + this[kOptions].comment = options.comment; + } + + if (typeof options.maxTimeMS === 'number') { + this[kOptions].maxTimeMS = options.maxTimeMS; + } + + if (typeof options.maxAwaitTimeMS === 'number') { + this[kOptions].maxAwaitTimeMS = options.maxAwaitTimeMS; + } + + if (options.session instanceof ClientSession) { + this[kSession] = options.session; + } else { + this[kSession] = this[kClient].startSession({ owner: this, explicit: false }); + } + } + + get id(): Long | undefined { + return this[kId] ?? undefined; + } + + /** @internal */ + get isDead() { + return (this[kId]?.isZero() ?? false) || this[kClosed] || this[kKilled]; + } + + /** @internal */ + get client(): MongoClient { + return this[kClient]; + } + + /** @internal */ + get server(): Server | undefined { + return this[kServer]; + } + + get namespace(): MongoDBNamespace { + return this[kNamespace]; + } + + get readPreference(): ReadPreference { + return this[kOptions].readPreference; + } + + get readConcern(): ReadConcern | undefined { + return this[kOptions].readConcern; + } + + /** @internal */ + get session(): ClientSession { + return this[kSession]; + } + + set session(clientSession: ClientSession) { + this[kSession] = clientSession; + } + + /** @internal */ + get cursorOptions(): InternalAbstractCursorOptions { + return this[kOptions]; + } + + get closed(): boolean { + return this[kClosed]; + } + + get killed(): boolean { + return this[kKilled]; + } + + get loadBalanced(): boolean { + return !!this[kClient].topology?.loadBalanced; + } + + /** Returns current buffered documents length */ + bufferedCount(): number { + return this[kDocuments].length; + } + + /** Returns current buffered documents */ + readBufferedDocuments(number?: number): TSchema[] { + const bufferedDocs: TSchema[] = []; + const documentsToRead = Math.min(number ?? this[kDocuments].length, this[kDocuments].length); + + for (let count = 0; count < documentsToRead; count++) { + const document = this[kDocuments].shift(this[kOptions]); + if (document != null) { + bufferedDocs.push(document); + } + } + + return bufferedDocs; + } + + async *[Symbol.asyncIterator](): AsyncGenerator { + if (this.closed) { + return; + } + + try { + while (true) { + const document = await this.next(); + + // Intentional strict null check, because users can map cursors to falsey values. + // We allow mapping to all values except for null. + // eslint-disable-next-line no-restricted-syntax + if (document === null) { + if (!this.closed) { + const message = + 'Cursor returned a `null` document, but the cursor is not exhausted. Mapping documents to `null` is not supported in the cursor transform.'; + + try { + await cleanupCursor(this, { needsToEmitClosed: true }); + } catch (error) { + squashError(error); + } + + throw new MongoAPIError(message); + } + break; + } + + yield document; + + if (this[kId] === Long.ZERO) { + // Cursor exhausted + break; + } + } + } finally { + // Only close the cursor if it has not already been closed. This finally clause handles + // the case when a user would break out of a for await of loop early. + if (!this.closed) { + try { + await this.close(); + } catch (error) { + squashError(error); + } + } + } + } + + stream(options?: CursorStreamOptions): Readable & AsyncIterable { + if (options?.transform) { + const transform = options.transform; + const readable = new ReadableCursorStream(this); + + const transformedStream = readable.pipe( + new Transform({ + objectMode: true, + highWaterMark: 1, + transform(chunk, _, callback) { + try { + const transformed = transform(chunk); + callback(undefined, transformed); + } catch (err) { + callback(err); + } + } + }) + ); + + // Bubble errors to transformed stream, because otherwise no way + // to handle this error. + readable.on('error', err => transformedStream.emit('error', err)); + + return transformedStream; + } + + return new ReadableCursorStream(this); + } + + async hasNext(): Promise { + if (this[kId] === Long.ZERO) { + return false; + } + + if (this[kDocuments].length !== 0) { + return true; + } + + return await next(this, { blocking: true, transform: false, shift: false }); + } + + /** Get the next available document from the cursor, returns null if no more documents are available. */ + async next(): Promise { + if (this[kId] === Long.ZERO) { + throw new MongoCursorExhaustedError(); + } + + return await next(this, { blocking: true, transform: true, shift: true }); + } + + /** + * Try to get the next available document from the cursor or `null` if an empty batch is returned + */ + async tryNext(): Promise { + if (this[kId] === Long.ZERO) { + throw new MongoCursorExhaustedError(); + } + + return await next(this, { blocking: false, transform: true, shift: true }); + } + + /** + * Iterates over all the documents for this cursor using the iterator, callback pattern. + * + * If the iterator returns `false`, iteration will stop. + * + * @param iterator - The iteration callback. + * @deprecated - Will be removed in a future release. Use for await...of instead. + */ + async forEach(iterator: (doc: TSchema) => boolean | void): Promise { + if (typeof iterator !== 'function') { + throw new MongoInvalidArgumentError('Argument "iterator" must be a function'); + } + for await (const document of this) { + const result = iterator(document); + if (result === false) { + break; + } + } + } + + async close(): Promise { + const needsToEmitClosed = !this[kClosed]; + this[kClosed] = true; + await cleanupCursor(this, { needsToEmitClosed }); + } + + /** + * Returns an array of documents. The caller is responsible for making sure that there + * is enough memory to store the results. Note that the array only contains partial + * results when this cursor had been previously accessed. In that case, + * cursor.rewind() can be used to reset the cursor. + */ + async toArray(): Promise { + const array = []; + for await (const document of this) { + array.push(document); + } + return array; + } + + /** + * Add a cursor flag to the cursor + * + * @param flag - The flag to set, must be one of following ['tailable', 'oplogReplay', 'noCursorTimeout', 'awaitData', 'partial' -. + * @param value - The flag boolean value. + */ + addCursorFlag(flag: CursorFlag, value: boolean): this { + assertUninitialized(this); + if (!CURSOR_FLAGS.includes(flag)) { + throw new MongoInvalidArgumentError(`Flag ${flag} is not one of ${CURSOR_FLAGS}`); + } + + if (typeof value !== 'boolean') { + throw new MongoInvalidArgumentError(`Flag ${flag} must be a boolean value`); + } + + this[kOptions][flag] = value; + return this; + } + + /** + * Map all documents using the provided function + * If there is a transform set on the cursor, that will be called first and the result passed to + * this function's transform. + * + * @remarks + * + * **Note** Cursors use `null` internally to indicate that there are no more documents in the cursor. Providing a mapping + * function that maps values to `null` will result in the cursor closing itself before it has finished iterating + * all documents. This will **not** result in a memory leak, just surprising behavior. For example: + * + * ```typescript + * const cursor = collection.find({}); + * cursor.map(() => null); + * + * const documents = await cursor.toArray(); + * // documents is always [], regardless of how many documents are in the collection. + * ``` + * + * Other falsey values are allowed: + * + * ```typescript + * const cursor = collection.find({}); + * cursor.map(() => ''); + * + * const documents = await cursor.toArray(); + * // documents is now an array of empty strings + * ``` + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling map, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: FindCursor = coll.find(); + * const mappedCursor: FindCursor = cursor.map(doc => Object.keys(doc).length); + * const keyCounts: number[] = await mappedCursor.toArray(); // cursor.toArray() still returns Document[] + * ``` + * @param transform - The mapping transformation method. + */ + map(transform: (doc: TSchema) => T): AbstractCursor { + assertUninitialized(this); + const oldTransform = this[kTransform] as (doc: TSchema) => TSchema; // TODO(NODE-3283): Improve transform typing + if (oldTransform) { + this[kTransform] = doc => { + return transform(oldTransform(doc)); + }; + } else { + this[kTransform] = transform; + } + + return this as unknown as AbstractCursor; + } + + /** + * Set the ReadPreference for the cursor. + * + * @param readPreference - The new read preference for the cursor. + */ + withReadPreference(readPreference: ReadPreferenceLike): this { + assertUninitialized(this); + if (readPreference instanceof ReadPreference) { + this[kOptions].readPreference = readPreference; + } else if (typeof readPreference === 'string') { + this[kOptions].readPreference = ReadPreference.fromString(readPreference); + } else { + throw new MongoInvalidArgumentError(`Invalid read preference: ${readPreference}`); + } + + return this; + } + + /** + * Set the ReadPreference for the cursor. + * + * @param readPreference - The new read preference for the cursor. + */ + withReadConcern(readConcern: ReadConcernLike): this { + assertUninitialized(this); + const resolvedReadConcern = ReadConcern.fromOptions({ readConcern }); + if (resolvedReadConcern) { + this[kOptions].readConcern = resolvedReadConcern; + } + + return this; + } + + /** + * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher) + * + * @param value - Number of milliseconds to wait before aborting the query. + */ + maxTimeMS(value: number): this { + assertUninitialized(this); + if (typeof value !== 'number') { + throw new MongoInvalidArgumentError('Argument for maxTimeMS must be a number'); + } + + this[kOptions].maxTimeMS = value; + return this; + } + + /** + * Set the batch size for the cursor. + * + * @param value - The number of documents to return per batch. See {@link https://www.mongodb.com/docs/manual/reference/command/find/|find command documentation}. + */ + batchSize(value: number): this { + assertUninitialized(this); + if (this[kOptions].tailable) { + throw new MongoTailableCursorError('Tailable cursor does not support batchSize'); + } + + if (typeof value !== 'number') { + throw new MongoInvalidArgumentError('Operation "batchSize" requires an integer'); + } + + this[kOptions].batchSize = value; + return this; + } + + /** + * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will + * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even + * if the resultant data has already been retrieved by this cursor. + */ + rewind(): void { + if (!this[kInitialized]) { + return; + } + + this[kId] = null; + this[kDocuments].clear(); + this[kClosed] = false; + this[kKilled] = false; + this[kInitialized] = false; + + const session = this[kSession]; + if (session) { + // We only want to end this session if we created it, and it hasn't ended yet + if (session.explicit === false) { + if (!session.hasEnded) { + // eslint-disable-next-line github/no-then + session.endSession().then(undefined, squashError); + } + this[kSession] = this.client.startSession({ owner: this, explicit: false }); + } + } + } + + /** + * Returns a new uninitialized copy of this cursor, with options matching those that have been set on the current instance + */ + abstract clone(): AbstractCursor; + + /** @internal */ + protected abstract _initialize(session: ClientSession | undefined): Promise; + + /** @internal */ + async getMore(batchSize: number, useCursorResponse = false): Promise { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + const getMoreOperation = new GetMoreOperation(this[kNamespace], this[kId]!, this[kServer]!, { + ...this[kOptions], + session: this[kSession], + batchSize, + useCursorResponse + }); + + return await executeOperation(this[kClient], getMoreOperation); + } + + /** + * @internal + * + * This function is exposed for the unified test runner's createChangeStream + * operation. We cannot refactor to use the abstract _initialize method without + * a significant refactor. + */ + async [kInit](): Promise { + try { + const state = await this._initialize(this[kSession]); + const response = state.response; + this[kServer] = state.server; + if (CursorResponse.is(response)) { + this[kId] = response.id; + if (response.ns) this[kNamespace] = response.ns; + this[kDocuments] = response; + } else if (response.cursor) { + // TODO(NODE-2674): Preserve int64 sent from MongoDB + this[kId] = + typeof response.cursor.id === 'number' + ? Long.fromNumber(response.cursor.id) + : typeof response.cursor.id === 'bigint' + ? Long.fromBigInt(response.cursor.id) + : response.cursor.id; + + if (response.cursor.ns) { + this[kNamespace] = ns(response.cursor.ns); + } + + this[kDocuments].pushMany(response.cursor.firstBatch); + } + + // When server responses return without a cursor document, we close this cursor + // and return the raw server response. This is often the case for explain commands + // for example + if (this[kId] == null) { + this[kId] = Long.ZERO; + // TODO(NODE-3286): ExecutionResult needs to accept a generic parameter + this[kDocuments].push(state.response as TODO_NODE_3286); + } + + // the cursor is now initialized, even if it is dead + this[kInitialized] = true; + } catch (error) { + // the cursor is now initialized, even if an error occurred + this[kInitialized] = true; + await cleanupCursor(this, { error }); + throw error; + } + + if (this.isDead) { + await cleanupCursor(this, undefined); + } + + return; + } +} + +/** + * @param cursor - the cursor on which to call `next` + * @param blocking - a boolean indicating whether or not the cursor should `block` until data + * is available. Generally, this flag is set to `false` because if the getMore returns no documents, + * the cursor has been exhausted. In certain scenarios (ChangeStreams, tailable await cursors and + * `tryNext`, for example) blocking is necessary because a getMore returning no documents does + * not indicate the end of the cursor. + * @param transform - if true, the cursor's transform function is applied to the result document (if the transform exists) + * @returns the next document in the cursor, or `null`. When `blocking` is `true`, a `null` document means + * the cursor has been exhausted. Otherwise, it means that there is no document available in the cursor's buffer. + */ +async function next( + cursor: AbstractCursor, + { + blocking, + transform, + shift + }: { + blocking: boolean; + transform: boolean; + shift: false; + } +): Promise; + +async function next( + cursor: AbstractCursor, + { + blocking, + transform, + shift + }: { + blocking: boolean; + transform: boolean; + shift: true; + } +): Promise; + +async function next( + cursor: AbstractCursor, + { + blocking, + transform, + shift + }: { + blocking: boolean; + transform: boolean; + shift: boolean; + } +): Promise { + if (cursor.closed) { + if (!shift) return false; + return null; + } + + do { + if (cursor[kId] == null) { + // All cursors must operate within a session, one must be made implicitly if not explicitly provided + await cursor[kInit](); + } + + if (cursor[kDocuments].length !== 0) { + if (!shift) return true; + const doc = cursor[kDocuments].shift(cursor[kOptions]); + + if (doc != null && transform && cursor[kTransform]) { + try { + return cursor[kTransform](doc); + } catch (error) { + try { + await cleanupCursor(cursor, { error, needsToEmitClosed: true }); + } catch (error) { + // `cleanupCursor` should never throw, squash and throw the original error + squashError(error); + } + throw error; + } + } + + return doc; + } + + if (cursor.isDead) { + // if the cursor is dead, we clean it up + // cleanupCursor should never throw, but if it does it indicates a bug in the driver + // and we should surface the error + await cleanupCursor(cursor, {}); + if (!shift) return false; + return null; + } + + // otherwise need to call getMore + const batchSize = cursor[kOptions].batchSize || 1000; + + try { + const response = await cursor.getMore(batchSize); + if (CursorResponse.is(response)) { + cursor[kId] = response.id; + cursor[kDocuments] = response; + } else if (response) { + const cursorId = + typeof response.cursor.id === 'number' + ? Long.fromNumber(response.cursor.id) + : typeof response.cursor.id === 'bigint' + ? Long.fromBigInt(response.cursor.id) + : response.cursor.id; + + cursor[kDocuments].pushMany(response.cursor.nextBatch); + cursor[kId] = cursorId; + } + } catch (error) { + try { + await cleanupCursor(cursor, { error, needsToEmitClosed: true }); + } catch (error) { + // `cleanupCursor` should never throw, squash and throw the original error + squashError(error); + } + throw error; + } + + if (cursor.isDead) { + // If we successfully received a response from a cursor BUT the cursor indicates that it is exhausted, + // we intentionally clean up the cursor to release its session back into the pool before the cursor + // is iterated. This prevents a cursor that is exhausted on the server from holding + // onto a session indefinitely until the AbstractCursor is iterated. + // + // cleanupCursorAsync should never throw, but if it does it indicates a bug in the driver + // and we should surface the error + await cleanupCursor(cursor, {}); + } + + if (cursor[kDocuments].length === 0 && blocking === false) { + if (!shift) return false; + return null; + } + } while (!cursor.isDead || cursor[kDocuments].length !== 0); + + if (!shift) return false; + return null; +} + +async function cleanupCursor( + cursor: AbstractCursor, + options: { error?: AnyError | undefined; needsToEmitClosed?: boolean } | undefined +): Promise { + const cursorId = cursor[kId]; + const cursorNs = cursor[kNamespace]; + const server = cursor[kServer]; + const session = cursor[kSession]; + const error = options?.error; + + // Cursors only emit closed events once the client-side cursor has been exhausted fully or there + // was an error. Notably, when the server returns a cursor id of 0 and a non-empty batch, we + // cleanup the cursor but don't emit a `close` event. + const needsToEmitClosed = options?.needsToEmitClosed ?? cursor[kDocuments].length === 0; + + if (error) { + if (cursor.loadBalanced && error instanceof MongoNetworkError) { + return await completeCleanup(); + } + } + + if (cursorId == null || server == null || cursorId.isZero() || cursorNs == null) { + if (needsToEmitClosed) { + cursor[kClosed] = true; + cursor[kId] = Long.ZERO; + cursor.emit(AbstractCursor.CLOSE); + } + + if (session) { + if (session.owner === cursor) { + await session.endSession({ error }); + return; + } + + if (!session.inTransaction()) { + maybeClearPinnedConnection(session, { error }); + } + } + + return; + } + + async function completeCleanup() { + if (session) { + if (session.owner === cursor) { + try { + await session.endSession({ error }); + } finally { + cursor.emit(AbstractCursor.CLOSE); + } + return; + } + + if (!session.inTransaction()) { + maybeClearPinnedConnection(session, { error }); + } + } + + cursor.emit(AbstractCursor.CLOSE); + return; + } + + cursor[kKilled] = true; + + if (session.hasEnded) { + return await completeCleanup(); + } + + try { + await executeOperation( + cursor[kClient], + new KillCursorsOperation(cursorId, cursorNs, server, { session }) + ); + } catch (error) { + squashError(error); + } finally { + await completeCleanup(); + } +} + +/** @internal */ +export function assertUninitialized(cursor: AbstractCursor): void { + if (cursor[kInitialized]) { + throw new MongoCursorInUseError(); + } +} + +class ReadableCursorStream extends Readable { + private _cursor: AbstractCursor; + private _readInProgress = false; + + constructor(cursor: AbstractCursor) { + super({ + objectMode: true, + autoDestroy: false, + highWaterMark: 1 + }); + this._cursor = cursor; + } + + // eslint-disable-next-line @typescript-eslint/no-unused-vars + override _read(size: number): void { + if (!this._readInProgress) { + this._readInProgress = true; + this._readNext(); + } + } + + override _destroy(error: Error | null, callback: (error?: Error | null) => void): void { + // eslint-disable-next-line github/no-then + this._cursor.close().then( + () => callback(error), + closeError => callback(closeError) + ); + } + + private _readNext() { + // eslint-disable-next-line github/no-then + next(this._cursor, { blocking: true, transform: true, shift: true }).then( + result => { + if (result == null) { + this.push(null); + } else if (this.destroyed) { + // eslint-disable-next-line github/no-then + this._cursor.close().then(undefined, squashError); + } else { + if (this.push(result)) { + return this._readNext(); + } + + this._readInProgress = false; + } + }, + err => { + // NOTE: This is questionable, but we have a test backing the behavior. It seems the + // desired behavior is that a stream ends cleanly when a user explicitly closes + // a client during iteration. Alternatively, we could do the "right" thing and + // propagate the error message by removing this special case. + if (err.message.match(/server is closed/)) { + // eslint-disable-next-line github/no-then + this._cursor.close().then(undefined, squashError); + return this.push(null); + } + + // NOTE: This is also perhaps questionable. The rationale here is that these errors tend + // to be "operation was interrupted", where a cursor has been closed but there is an + // active getMore in-flight. This used to check if the cursor was killed but once + // that changed to happen in cleanup legitimate errors would not destroy the + // stream. There are change streams test specifically test these cases. + if (err.message.match(/operation was interrupted/)) { + return this.push(null); + } + + // NOTE: The two above checks on the message of the error will cause a null to be pushed + // to the stream, thus closing the stream before the destroy call happens. This means + // that either of those error messages on a change stream will not get a proper + // 'error' event to be emitted (the error passed to destroy). Change stream resumability + // relies on that error event to be emitted to create its new cursor and thus was not + // working on 4.4 servers because the error emitted on failover was "interrupted at + // shutdown" while on 5.0+ it is "The server is in quiesce mode and will shut down". + // See NODE-4475. + return this.destroy(err); + } + ); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/aggregation_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/aggregation_cursor.ts new file mode 100644 index 000000000..cba77e9b5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/aggregation_cursor.ts @@ -0,0 +1,204 @@ +import type { Document } from '../bson'; +import type { ExplainVerbosityLike } from '../explain'; +import type { MongoClient } from '../mongo_client'; +import { AggregateOperation, type AggregateOptions } from '../operations/aggregate'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import type { ClientSession } from '../sessions'; +import type { Sort } from '../sort'; +import type { MongoDBNamespace } from '../utils'; +import { mergeOptions } from '../utils'; +import type { AbstractCursorOptions } from './abstract_cursor'; +import { AbstractCursor, assertUninitialized } from './abstract_cursor'; + +/** @public */ +export interface AggregationCursorOptions extends AbstractCursorOptions, AggregateOptions {} + +/** @internal */ +const kPipeline = Symbol('pipeline'); +/** @internal */ +const kOptions = Symbol('options'); + +/** + * The **AggregationCursor** class is an internal class that embodies an aggregation cursor on MongoDB + * allowing for iteration over the results returned from the underlying query. It supports + * one by one document iteration, conversion to an array or can be iterated as a Node 4.X + * or higher stream + * @public + */ +export class AggregationCursor extends AbstractCursor { + /** @internal */ + [kPipeline]: Document[]; + /** @internal */ + [kOptions]: AggregateOptions; + + /** @internal */ + constructor( + client: MongoClient, + namespace: MongoDBNamespace, + pipeline: Document[] = [], + options: AggregateOptions = {} + ) { + super(client, namespace, options); + + this[kPipeline] = pipeline; + this[kOptions] = options; + } + + get pipeline(): Document[] { + return this[kPipeline]; + } + + clone(): AggregationCursor { + const clonedOptions = mergeOptions({}, this[kOptions]); + delete clonedOptions.session; + return new AggregationCursor(this.client, this.namespace, this[kPipeline], { + ...clonedOptions + }); + } + + override map(transform: (doc: TSchema) => T): AggregationCursor { + return super.map(transform) as AggregationCursor; + } + + /** @internal */ + async _initialize(session: ClientSession): Promise { + const aggregateOperation = new AggregateOperation(this.namespace, this[kPipeline], { + ...this[kOptions], + ...this.cursorOptions, + session + }); + + const response = await executeOperation(this.client, aggregateOperation); + + // TODO: NODE-2882 + return { server: aggregateOperation.server, session, response }; + } + + /** Execute the explain for the cursor */ + async explain(verbosity?: ExplainVerbosityLike): Promise { + return await executeOperation( + this.client, + new AggregateOperation(this.namespace, this[kPipeline], { + ...this[kOptions], // NOTE: order matters here, we may need to refine this + ...this.cursorOptions, + explain: verbosity ?? true + }) + ); + } + + /** Add a stage to the aggregation pipeline + * @example + * ``` + * const documents = await users.aggregate().addStage({ $match: { name: /Mike/ } }).toArray(); + * ``` + * @example + * ``` + * const documents = await users.aggregate() + * .addStage<{ name: string }>({ $project: { name: true } }) + * .toArray(); // type of documents is { name: string }[] + * ``` + */ + addStage(stage: Document): this; + addStage(stage: Document): AggregationCursor; + addStage(stage: Document): AggregationCursor { + assertUninitialized(this); + this[kPipeline].push(stage); + return this as unknown as AggregationCursor; + } + + /** Add a group stage to the aggregation pipeline */ + group($group: Document): AggregationCursor; + group($group: Document): this { + return this.addStage({ $group }); + } + + /** Add a limit stage to the aggregation pipeline */ + limit($limit: number): this { + return this.addStage({ $limit }); + } + + /** Add a match stage to the aggregation pipeline */ + match($match: Document): this { + return this.addStage({ $match }); + } + + /** Add an out stage to the aggregation pipeline */ + out($out: { db: string; coll: string } | string): this { + return this.addStage({ $out }); + } + + /** + * Add a project stage to the aggregation pipeline + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * By default chaining a projection to your cursor changes the returned type to the generic {@link Document} type. + * You should specify a parameterized type to have assertions on your final results. + * + * @example + * ```typescript + * // Best way + * const docs: AggregationCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true }); + * // Flexible way + * const docs: AggregationCursor = cursor.project({ _id: 0, a: true }); + * ``` + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling project, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: AggregationCursor<{ a: number; b: string }> = coll.aggregate([]); + * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true }); + * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray(); + * + * // or always use chaining and save the final cursor + * + * const cursor = coll.aggregate().project<{ a: string }>({ + * _id: 0, + * a: { $convert: { input: '$a', to: 'string' } + * }}); + * ``` + */ + project($project: Document): AggregationCursor { + return this.addStage({ $project }); + } + + /** Add a lookup stage to the aggregation pipeline */ + lookup($lookup: Document): this { + return this.addStage({ $lookup }); + } + + /** Add a redact stage to the aggregation pipeline */ + redact($redact: Document): this { + return this.addStage({ $redact }); + } + + /** Add a skip stage to the aggregation pipeline */ + skip($skip: number): this { + return this.addStage({ $skip }); + } + + /** Add a sort stage to the aggregation pipeline */ + sort($sort: Sort): this { + return this.addStage({ $sort }); + } + + /** Add a unwind stage to the aggregation pipeline */ + unwind($unwind: Document | string): this { + return this.addStage({ $unwind }); + } + + /** Add a geoNear stage to the aggregation pipeline */ + geoNear($geoNear: Document): this { + return this.addStage({ $geoNear }); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/change_stream_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/change_stream_cursor.ts new file mode 100644 index 000000000..31fda3308 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/change_stream_cursor.ts @@ -0,0 +1,185 @@ +import type { Document, Long, Timestamp } from '../bson'; +import { + ChangeStream, + type ChangeStreamDocument, + type ChangeStreamEvents, + type OperationTime, + type ResumeToken +} from '../change_stream'; +import { INIT, RESPONSE } from '../constants'; +import type { MongoClient } from '../mongo_client'; +import type { TODO_NODE_3286 } from '../mongo_types'; +import { AggregateOperation } from '../operations/aggregate'; +import type { CollationOptions } from '../operations/command'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import type { ClientSession } from '../sessions'; +import { maxWireVersion, type MongoDBNamespace } from '../utils'; +import { AbstractCursor, type AbstractCursorOptions } from './abstract_cursor'; + +/** @internal */ +export interface ChangeStreamCursorOptions extends AbstractCursorOptions { + startAtOperationTime?: OperationTime; + resumeAfter?: ResumeToken; + startAfter?: ResumeToken; + maxAwaitTimeMS?: number; + collation?: CollationOptions; + fullDocument?: string; +} + +/** @internal */ +export type ChangeStreamAggregateRawResult = { + $clusterTime: { clusterTime: Timestamp }; + cursor: { + postBatchResumeToken: ResumeToken; + ns: string; + id: number | Long; + } & ({ firstBatch: TChange[] } | { nextBatch: TChange[] }); + ok: 1; + operationTime: Timestamp; +}; + +/** @internal */ +export class ChangeStreamCursor< + TSchema extends Document = Document, + TChange extends Document = ChangeStreamDocument +> extends AbstractCursor { + _resumeToken: ResumeToken; + startAtOperationTime?: OperationTime; + hasReceived?: boolean; + resumeAfter: ResumeToken; + startAfter: ResumeToken; + options: ChangeStreamCursorOptions; + + postBatchResumeToken?: ResumeToken; + pipeline: Document[]; + + /** + * @internal + * + * used to determine change stream resumability + */ + maxWireVersion: number | undefined; + + constructor( + client: MongoClient, + namespace: MongoDBNamespace, + pipeline: Document[] = [], + options: ChangeStreamCursorOptions = {} + ) { + super(client, namespace, options); + + this.pipeline = pipeline; + this.options = options; + this._resumeToken = null; + this.startAtOperationTime = options.startAtOperationTime; + + if (options.startAfter) { + this.resumeToken = options.startAfter; + } else if (options.resumeAfter) { + this.resumeToken = options.resumeAfter; + } + } + + set resumeToken(token: ResumeToken) { + this._resumeToken = token; + this.emit(ChangeStream.RESUME_TOKEN_CHANGED, token); + } + + get resumeToken(): ResumeToken { + return this._resumeToken; + } + + get resumeOptions(): ChangeStreamCursorOptions { + const options: ChangeStreamCursorOptions = { + ...this.options + }; + + for (const key of ['resumeAfter', 'startAfter', 'startAtOperationTime'] as const) { + delete options[key]; + } + + if (this.resumeToken != null) { + if (this.options.startAfter && !this.hasReceived) { + options.startAfter = this.resumeToken; + } else { + options.resumeAfter = this.resumeToken; + } + } else if (this.startAtOperationTime != null && maxWireVersion(this.server) >= 7) { + options.startAtOperationTime = this.startAtOperationTime; + } + + return options; + } + + cacheResumeToken(resumeToken: ResumeToken): void { + if (this.bufferedCount() === 0 && this.postBatchResumeToken) { + this.resumeToken = this.postBatchResumeToken; + } else { + this.resumeToken = resumeToken; + } + this.hasReceived = true; + } + + _processBatch(response: ChangeStreamAggregateRawResult): void { + const cursor = response.cursor; + if (cursor.postBatchResumeToken) { + this.postBatchResumeToken = response.cursor.postBatchResumeToken; + + const batch = + 'firstBatch' in response.cursor ? response.cursor.firstBatch : response.cursor.nextBatch; + if (batch.length === 0) { + this.resumeToken = cursor.postBatchResumeToken; + } + } + } + + clone(): AbstractCursor { + return new ChangeStreamCursor(this.client, this.namespace, this.pipeline, { + ...this.cursorOptions + }); + } + + async _initialize(session: ClientSession): Promise { + const aggregateOperation = new AggregateOperation(this.namespace, this.pipeline, { + ...this.cursorOptions, + ...this.options, + session + }); + + const response = await executeOperation< + TODO_NODE_3286, + ChangeStreamAggregateRawResult + >(session.client, aggregateOperation); + + const server = aggregateOperation.server; + this.maxWireVersion = maxWireVersion(server); + + if ( + this.startAtOperationTime == null && + this.resumeAfter == null && + this.startAfter == null && + this.maxWireVersion >= 7 + ) { + this.startAtOperationTime = response.operationTime; + } + + this._processBatch(response); + + this.emit(INIT, response); + this.emit(RESPONSE); + + // TODO: NODE-2882 + return { server, session, response }; + } + + override async getMore(batchSize: number): Promise { + const response = await super.getMore(batchSize); + + this.maxWireVersion = maxWireVersion(this.server); + this._processBatch(response as ChangeStreamAggregateRawResult); + + this.emit(ChangeStream.MORE, response); + this.emit(ChangeStream.RESPONSE); + return response; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/find_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/find_cursor.ts new file mode 100644 index 000000000..bb21d49fb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/find_cursor.ts @@ -0,0 +1,466 @@ +import { type Document } from '../bson'; +import { CursorResponse } from '../cmap/wire_protocol/responses'; +import { MongoInvalidArgumentError, MongoTailableCursorError } from '../error'; +import { type ExplainVerbosityLike } from '../explain'; +import type { MongoClient } from '../mongo_client'; +import type { CollationOptions } from '../operations/command'; +import { CountOperation, type CountOptions } from '../operations/count'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import { FindOperation, type FindOptions } from '../operations/find'; +import type { Hint } from '../operations/operation'; +import type { ClientSession } from '../sessions'; +import { formatSort, type Sort, type SortDirection } from '../sort'; +import { emitWarningOnce, mergeOptions, type MongoDBNamespace, squashError } from '../utils'; +import { AbstractCursor, assertUninitialized } from './abstract_cursor'; + +/** @internal */ +const kFilter = Symbol('filter'); +/** @internal */ +const kNumReturned = Symbol('numReturned'); +/** @internal */ +const kBuiltOptions = Symbol('builtOptions'); + +/** @public Flags allowed for cursor */ +export const FLAGS = [ + 'tailable', + 'oplogReplay', + 'noCursorTimeout', + 'awaitData', + 'exhaust', + 'partial' +] as const; + +/** @public */ +export class FindCursor extends AbstractCursor { + /** @internal */ + [kFilter]: Document; + /** @internal */ + [kNumReturned] = 0; + /** @internal */ + [kBuiltOptions]: FindOptions; + + /** @internal */ + constructor( + client: MongoClient, + namespace: MongoDBNamespace, + filter: Document = {}, + options: FindOptions = {} + ) { + super(client, namespace, options); + + this[kFilter] = filter; + this[kBuiltOptions] = options; + + if (options.sort != null) { + this[kBuiltOptions].sort = formatSort(options.sort); + } + } + + clone(): FindCursor { + const clonedOptions = mergeOptions({}, this[kBuiltOptions]); + delete clonedOptions.session; + return new FindCursor(this.client, this.namespace, this[kFilter], { + ...clonedOptions + }); + } + + override map(transform: (doc: TSchema) => T): FindCursor { + return super.map(transform) as FindCursor; + } + + /** @internal */ + async _initialize(session: ClientSession): Promise { + const findOperation = new FindOperation(this.namespace, this[kFilter], { + ...this[kBuiltOptions], // NOTE: order matters here, we may need to refine this + ...this.cursorOptions, + session + }); + + const response = await executeOperation(this.client, findOperation); + + // the response is not a cursor when `explain` is enabled + if (CursorResponse.is(response)) { + this[kNumReturned] = response.batchSize; + } else { + // Can be an explain response, hence the ?. on everything + this[kNumReturned] = this[kNumReturned] + (response?.cursor?.firstBatch?.length ?? 0); + } + + // TODO: NODE-2882 + return { server: findOperation.server, session, response }; + } + + /** @internal */ + override async getMore(batchSize: number): Promise { + const numReturned = this[kNumReturned]; + if (numReturned) { + // TODO(DRIVERS-1448): Remove logic to enforce `limit` in the driver + const limit = this[kBuiltOptions].limit; + batchSize = + limit && limit > 0 && numReturned + batchSize > limit ? limit - numReturned : batchSize; + + if (batchSize <= 0) { + try { + await this.close(); + } catch (error) { + squashError(error); + // this is an optimization for the special case of a limit for a find command to avoid an + // extra getMore when the limit has been reached and the limit is a multiple of the batchSize. + // This is a consequence of the new query engine in 5.0 having no knowledge of the limit as it + // produces results for the find command. Once a batch is filled up, it is returned and only + // on the subsequent getMore will the query framework consider the limit, determine the cursor + // is exhausted and return a cursorId of zero. + // instead, if we determine there are no more documents to request from the server, we preemptively + // close the cursor + } + return CursorResponse.emptyGetMore; + } + } + + const response = await super.getMore(batchSize, false); + // TODO: wrap this in some logic to prevent it from happening if we don't need this support + if (CursorResponse.is(response)) { + this[kNumReturned] = this[kNumReturned] + response.batchSize; + } else { + this[kNumReturned] = this[kNumReturned] + (response?.cursor?.nextBatch?.length ?? 0); + } + + return response; + } + + /** + * Get the count of documents for this cursor + * @deprecated Use `collection.estimatedDocumentCount` or `collection.countDocuments` instead + */ + async count(options?: CountOptions): Promise { + emitWarningOnce( + 'cursor.count is deprecated and will be removed in the next major version, please use `collection.estimatedDocumentCount` or `collection.countDocuments` instead ' + ); + if (typeof options === 'boolean') { + throw new MongoInvalidArgumentError('Invalid first parameter to count'); + } + return await executeOperation( + this.client, + new CountOperation(this.namespace, this[kFilter], { + ...this[kBuiltOptions], // NOTE: order matters here, we may need to refine this + ...this.cursorOptions, + ...options + }) + ); + } + + /** Execute the explain for the cursor */ + async explain(verbosity?: ExplainVerbosityLike): Promise { + return await executeOperation( + this.client, + new FindOperation(this.namespace, this[kFilter], { + ...this[kBuiltOptions], // NOTE: order matters here, we may need to refine this + ...this.cursorOptions, + explain: verbosity ?? true + }) + ); + } + + /** Set the cursor query */ + filter(filter: Document): this { + assertUninitialized(this); + this[kFilter] = filter; + return this; + } + + /** + * Set the cursor hint + * + * @param hint - If specified, then the query system will only consider plans using the hinted index. + */ + hint(hint: Hint): this { + assertUninitialized(this); + this[kBuiltOptions].hint = hint; + return this; + } + + /** + * Set the cursor min + * + * @param min - Specify a $min value to specify the inclusive lower bound for a specific index in order to constrain the results of find(). The $min specifies the lower bound for all keys of a specific index in order. + */ + min(min: Document): this { + assertUninitialized(this); + this[kBuiltOptions].min = min; + return this; + } + + /** + * Set the cursor max + * + * @param max - Specify a $max value to specify the exclusive upper bound for a specific index in order to constrain the results of find(). The $max specifies the upper bound for all keys of a specific index in order. + */ + max(max: Document): this { + assertUninitialized(this); + this[kBuiltOptions].max = max; + return this; + } + + /** + * Set the cursor returnKey. + * If set to true, modifies the cursor to only return the index field or fields for the results of the query, rather than documents. + * If set to true and the query does not use an index to perform the read operation, the returned documents will not contain any fields. + * + * @param value - the returnKey value. + */ + returnKey(value: boolean): this { + assertUninitialized(this); + this[kBuiltOptions].returnKey = value; + return this; + } + + /** + * Modifies the output of a query by adding a field $recordId to matching documents. $recordId is the internal key which uniquely identifies a document in a collection. + * + * @param value - The $showDiskLoc option has now been deprecated and replaced with the showRecordId field. $showDiskLoc will still be accepted for OP_QUERY stye find. + */ + showRecordId(value: boolean): this { + assertUninitialized(this); + this[kBuiltOptions].showRecordId = value; + return this; + } + + /** + * Add a query modifier to the cursor query + * + * @param name - The query modifier (must start with $, such as $orderby etc) + * @param value - The modifier value. + */ + addQueryModifier(name: string, value: string | boolean | number | Document): this { + assertUninitialized(this); + if (name[0] !== '$') { + throw new MongoInvalidArgumentError(`${name} is not a valid query modifier`); + } + + // Strip of the $ + const field = name.substr(1); + + // NOTE: consider some TS magic for this + switch (field) { + case 'comment': + this[kBuiltOptions].comment = value as string | Document; + break; + + case 'explain': + this[kBuiltOptions].explain = value as boolean; + break; + + case 'hint': + this[kBuiltOptions].hint = value as string | Document; + break; + + case 'max': + this[kBuiltOptions].max = value as Document; + break; + + case 'maxTimeMS': + this[kBuiltOptions].maxTimeMS = value as number; + break; + + case 'min': + this[kBuiltOptions].min = value as Document; + break; + + case 'orderby': + this[kBuiltOptions].sort = formatSort(value as string | Document); + break; + + case 'query': + this[kFilter] = value as Document; + break; + + case 'returnKey': + this[kBuiltOptions].returnKey = value as boolean; + break; + + case 'showDiskLoc': + this[kBuiltOptions].showRecordId = value as boolean; + break; + + default: + throw new MongoInvalidArgumentError(`Invalid query modifier: ${name}`); + } + + return this; + } + + /** + * Add a comment to the cursor query allowing for tracking the comment in the log. + * + * @param value - The comment attached to this query. + */ + comment(value: string): this { + assertUninitialized(this); + this[kBuiltOptions].comment = value; + return this; + } + + /** + * Set a maxAwaitTimeMS on a tailing cursor query to allow to customize the timeout value for the option awaitData (Only supported on MongoDB 3.2 or higher, ignored otherwise) + * + * @param value - Number of milliseconds to wait before aborting the tailed query. + */ + maxAwaitTimeMS(value: number): this { + assertUninitialized(this); + if (typeof value !== 'number') { + throw new MongoInvalidArgumentError('Argument for maxAwaitTimeMS must be a number'); + } + + this[kBuiltOptions].maxAwaitTimeMS = value; + return this; + } + + /** + * Set a maxTimeMS on the cursor query, allowing for hard timeout limits on queries (Only supported on MongoDB 2.6 or higher) + * + * @param value - Number of milliseconds to wait before aborting the query. + */ + override maxTimeMS(value: number): this { + assertUninitialized(this); + if (typeof value !== 'number') { + throw new MongoInvalidArgumentError('Argument for maxTimeMS must be a number'); + } + + this[kBuiltOptions].maxTimeMS = value; + return this; + } + + /** + * Add a project stage to the aggregation pipeline + * + * @remarks + * In order to strictly type this function you must provide an interface + * that represents the effect of your projection on the result documents. + * + * By default chaining a projection to your cursor changes the returned type to the generic + * {@link Document} type. + * You should specify a parameterized type to have assertions on your final results. + * + * @example + * ```typescript + * // Best way + * const docs: FindCursor<{ a: number }> = cursor.project<{ a: number }>({ _id: 0, a: true }); + * // Flexible way + * const docs: FindCursor = cursor.project({ _id: 0, a: true }); + * ``` + * + * @remarks + * + * **Note for Typescript Users:** adding a transform changes the return type of the iteration of this cursor, + * it **does not** return a new instance of a cursor. This means when calling project, + * you should always assign the result to a new variable in order to get a correctly typed cursor variable. + * Take note of the following example: + * + * @example + * ```typescript + * const cursor: FindCursor<{ a: number; b: string }> = coll.find(); + * const projectCursor = cursor.project<{ a: number }>({ _id: 0, a: true }); + * const aPropOnlyArray: {a: number}[] = await projectCursor.toArray(); + * + * // or always use chaining and save the final cursor + * + * const cursor = coll.find().project<{ a: string }>({ + * _id: 0, + * a: { $convert: { input: '$a', to: 'string' } + * }}); + * ``` + */ + project(value: Document): FindCursor { + assertUninitialized(this); + this[kBuiltOptions].projection = value; + return this as unknown as FindCursor; + } + + /** + * Sets the sort order of the cursor query. + * + * @param sort - The key or keys set for the sort. + * @param direction - The direction of the sorting (1 or -1). + */ + sort(sort: Sort | string, direction?: SortDirection): this { + assertUninitialized(this); + if (this[kBuiltOptions].tailable) { + throw new MongoTailableCursorError('Tailable cursor does not support sorting'); + } + + this[kBuiltOptions].sort = formatSort(sort, direction); + return this; + } + + /** + * Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) + * + * @remarks + * {@link https://www.mongodb.com/docs/manual/reference/command/find/#find-cmd-allowdiskuse | find command allowDiskUse documentation} + */ + allowDiskUse(allow = true): this { + assertUninitialized(this); + + if (!this[kBuiltOptions].sort) { + throw new MongoInvalidArgumentError('Option "allowDiskUse" requires a sort specification'); + } + + // As of 6.0 the default is true. This allows users to get back to the old behavior. + if (!allow) { + this[kBuiltOptions].allowDiskUse = false; + return this; + } + + this[kBuiltOptions].allowDiskUse = true; + return this; + } + + /** + * Set the collation options for the cursor. + * + * @param value - The cursor collation options (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). + */ + collation(value: CollationOptions): this { + assertUninitialized(this); + this[kBuiltOptions].collation = value; + return this; + } + + /** + * Set the limit for the cursor. + * + * @param value - The limit for the cursor query. + */ + limit(value: number): this { + assertUninitialized(this); + if (this[kBuiltOptions].tailable) { + throw new MongoTailableCursorError('Tailable cursor does not support limit'); + } + + if (typeof value !== 'number') { + throw new MongoInvalidArgumentError('Operation "limit" requires an integer'); + } + + this[kBuiltOptions].limit = value; + return this; + } + + /** + * Set the skip for the cursor. + * + * @param value - The skip for the cursor query. + */ + skip(value: number): this { + assertUninitialized(this); + if (this[kBuiltOptions].tailable) { + throw new MongoTailableCursorError('Tailable cursor does not support skip'); + } + + if (typeof value !== 'number') { + throw new MongoInvalidArgumentError('Operation "skip" requires an integer'); + } + + this[kBuiltOptions].skip = value; + return this; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_collections_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_collections_cursor.ts new file mode 100644 index 000000000..6cefbd0d0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_collections_cursor.ts @@ -0,0 +1,49 @@ +import type { Document } from '../bson'; +import type { Db } from '../db'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import { + type CollectionInfo, + ListCollectionsOperation, + type ListCollectionsOptions +} from '../operations/list_collections'; +import type { ClientSession } from '../sessions'; +import { AbstractCursor } from './abstract_cursor'; + +/** @public */ +export class ListCollectionsCursor< + T extends Pick | CollectionInfo = + | Pick + | CollectionInfo +> extends AbstractCursor { + parent: Db; + filter: Document; + options?: ListCollectionsOptions; + + constructor(db: Db, filter: Document, options?: ListCollectionsOptions) { + super(db.client, db.s.namespace, options); + this.parent = db; + this.filter = filter; + this.options = options; + } + + clone(): ListCollectionsCursor { + return new ListCollectionsCursor(this.parent, this.filter, { + ...this.options, + ...this.cursorOptions + }); + } + + /** @internal */ + async _initialize(session: ClientSession | undefined): Promise { + const operation = new ListCollectionsOperation(this.parent, this.filter, { + ...this.cursorOptions, + ...this.options, + session + }); + + const response = await executeOperation(this.parent.client, operation); + + // TODO: NODE-2882 + return { server: operation.server, session, response }; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_indexes_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_indexes_cursor.ts new file mode 100644 index 000000000..7d75edb99 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_indexes_cursor.ts @@ -0,0 +1,38 @@ +import type { Collection } from '../collection'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import { ListIndexesOperation, type ListIndexesOptions } from '../operations/indexes'; +import type { ClientSession } from '../sessions'; +import { AbstractCursor } from './abstract_cursor'; + +/** @public */ +export class ListIndexesCursor extends AbstractCursor { + parent: Collection; + options?: ListIndexesOptions; + + constructor(collection: Collection, options?: ListIndexesOptions) { + super(collection.client, collection.s.namespace, options); + this.parent = collection; + this.options = options; + } + + clone(): ListIndexesCursor { + return new ListIndexesCursor(this.parent, { + ...this.options, + ...this.cursorOptions + }); + } + + /** @internal */ + async _initialize(session: ClientSession | undefined): Promise { + const operation = new ListIndexesOperation(this.parent, { + ...this.cursorOptions, + ...this.options, + session + }); + + const response = await executeOperation(this.parent.client, operation); + + // TODO: NODE-2882 + return { server: operation.server, session, response }; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_search_indexes_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_search_indexes_cursor.ts new file mode 100644 index 000000000..cfe1358f7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/list_search_indexes_cursor.ts @@ -0,0 +1,20 @@ +import type { Collection } from '../collection'; +import type { AggregateOptions } from '../operations/aggregate'; +import { AggregationCursor } from './aggregation_cursor'; + +/** @public */ +export type ListSearchIndexesOptions = Omit; + +/** @public */ +export class ListSearchIndexesCursor extends AggregationCursor<{ name: string }> { + /** @internal */ + constructor( + { fullNamespace: ns, client }: Collection, + name: string | null, + options: ListSearchIndexesOptions = {} + ) { + const pipeline = + name == null ? [{ $listSearchIndexes: {} }] : [{ $listSearchIndexes: { name } }]; + super(client, ns, pipeline, options); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/run_command_cursor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/run_command_cursor.ts new file mode 100644 index 000000000..553041492 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/cursor/run_command_cursor.ts @@ -0,0 +1,134 @@ +import type { BSONSerializeOptions, Document, Long } from '../bson'; +import type { Db } from '../db'; +import { MongoAPIError, MongoUnexpectedServerResponseError } from '../error'; +import { executeOperation, type ExecutionResult } from '../operations/execute_operation'; +import { GetMoreOperation } from '../operations/get_more'; +import { RunCommandOperation } from '../operations/run_command'; +import type { ReadConcernLike } from '../read_concern'; +import type { ReadPreferenceLike } from '../read_preference'; +import type { ClientSession } from '../sessions'; +import { ns } from '../utils'; +import { AbstractCursor } from './abstract_cursor'; + +/** @public */ +export type RunCursorCommandOptions = { + readPreference?: ReadPreferenceLike; + session?: ClientSession; +} & BSONSerializeOptions; + +/** @internal */ +type RunCursorCommandResponse = { + cursor: { id: bigint | Long | number; ns: string; firstBatch: Document[] }; + ok: 1; +}; + +/** @public */ +export class RunCommandCursor extends AbstractCursor { + public readonly command: Readonly>; + public readonly getMoreOptions: { + comment?: any; + maxAwaitTimeMS?: number; + batchSize?: number; + } = {}; + + /** + * Controls the `getMore.comment` field + * @param comment - any BSON value + */ + public setComment(comment: any): this { + this.getMoreOptions.comment = comment; + return this; + } + + /** + * Controls the `getMore.maxTimeMS` field. Only valid when cursor is tailable await + * @param maxTimeMS - the number of milliseconds to wait for new data + */ + public setMaxTimeMS(maxTimeMS: number): this { + this.getMoreOptions.maxAwaitTimeMS = maxTimeMS; + return this; + } + + /** + * Controls the `getMore.batchSize` field + * @param maxTimeMS - the number documents to return in the `nextBatch` + */ + public setBatchSize(batchSize: number): this { + this.getMoreOptions.batchSize = batchSize; + return this; + } + + /** Unsupported for RunCommandCursor */ + public override clone(): never { + throw new MongoAPIError('Clone not supported, create a new cursor with db.runCursorCommand'); + } + + /** Unsupported for RunCommandCursor: readConcern must be configured directly on command document */ + public override withReadConcern(_: ReadConcernLike): never { + throw new MongoAPIError( + 'RunCommandCursor does not support readConcern it must be attached to the command being run' + ); + } + + /** Unsupported for RunCommandCursor: various cursor flags must be configured directly on command document */ + public override addCursorFlag(_: string, __: boolean): never { + throw new MongoAPIError( + 'RunCommandCursor does not support cursor flags, they must be attached to the command being run' + ); + } + + /** Unsupported for RunCommandCursor: maxTimeMS must be configured directly on command document */ + public override maxTimeMS(_: number): never { + throw new MongoAPIError( + 'maxTimeMS must be configured on the command document directly, to configure getMore.maxTimeMS use cursor.setMaxTimeMS()' + ); + } + + /** Unsupported for RunCommandCursor: batchSize must be configured directly on command document */ + public override batchSize(_: number): never { + throw new MongoAPIError( + 'batchSize must be configured on the command document directly, to configure getMore.batchSize use cursor.setBatchSize()' + ); + } + + /** @internal */ + private db: Db; + + /** @internal */ + constructor(db: Db, command: Document, options: RunCursorCommandOptions = {}) { + super(db.client, ns(db.namespace), options); + this.db = db; + this.command = Object.freeze({ ...command }); + } + + /** @internal */ + protected async _initialize(session: ClientSession): Promise { + const operation = new RunCommandOperation(this.db, this.command, { + ...this.cursorOptions, + session: session, + readPreference: this.cursorOptions.readPreference + }); + const response = await executeOperation(this.client, operation); + if (response.cursor == null) { + throw new MongoUnexpectedServerResponseError('Expected server to respond with cursor'); + } + return { + server: operation.server, + session, + response + }; + } + + /** @internal */ + override async getMore(_batchSize: number): Promise { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + const getMoreOperation = new GetMoreOperation(this.namespace, this.id!, this.server!, { + ...this.cursorOptions, + session: this.session, + ...this.getMoreOptions, + useCursorResponse: false + }); + + return await executeOperation(this.client, getMoreOperation); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/db.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/db.ts new file mode 100644 index 000000000..0dcd24dbb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/db.ts @@ -0,0 +1,550 @@ +import { Admin } from './admin'; +import { type BSONSerializeOptions, type Document, resolveBSONOptions } from './bson'; +import { ChangeStream, type ChangeStreamDocument, type ChangeStreamOptions } from './change_stream'; +import { Collection, type CollectionOptions } from './collection'; +import * as CONSTANTS from './constants'; +import { AggregationCursor } from './cursor/aggregation_cursor'; +import { ListCollectionsCursor } from './cursor/list_collections_cursor'; +import { RunCommandCursor, type RunCursorCommandOptions } from './cursor/run_command_cursor'; +import { MongoInvalidArgumentError } from './error'; +import type { MongoClient, PkFactory } from './mongo_client'; +import type { TODO_NODE_3286 } from './mongo_types'; +import type { AggregateOptions } from './operations/aggregate'; +import { CollectionsOperation } from './operations/collections'; +import { + CreateCollectionOperation, + type CreateCollectionOptions +} from './operations/create_collection'; +import { + DropCollectionOperation, + type DropCollectionOptions, + DropDatabaseOperation, + type DropDatabaseOptions +} from './operations/drop'; +import { executeOperation } from './operations/execute_operation'; +import { + CreateIndexesOperation, + type CreateIndexesOptions, + type IndexDescriptionCompact, + type IndexDescriptionInfo, + type IndexInformationOptions, + type IndexSpecification +} from './operations/indexes'; +import type { CollectionInfo, ListCollectionsOptions } from './operations/list_collections'; +import { ProfilingLevelOperation, type ProfilingLevelOptions } from './operations/profiling_level'; +import { RemoveUserOperation, type RemoveUserOptions } from './operations/remove_user'; +import { RenameOperation, type RenameOptions } from './operations/rename'; +import { RunCommandOperation, type RunCommandOptions } from './operations/run_command'; +import { + type ProfilingLevel, + SetProfilingLevelOperation, + type SetProfilingLevelOptions +} from './operations/set_profiling_level'; +import { DbStatsOperation, type DbStatsOptions } from './operations/stats'; +import { ReadConcern } from './read_concern'; +import { ReadPreference, type ReadPreferenceLike } from './read_preference'; +import { DEFAULT_PK_FACTORY, filterOptions, MongoDBNamespace, resolveOptions } from './utils'; +import { WriteConcern, type WriteConcernOptions } from './write_concern'; + +// Allowed parameters +const DB_OPTIONS_ALLOW_LIST = [ + 'writeConcern', + 'readPreference', + 'readPreferenceTags', + 'native_parser', + 'forceServerObjectId', + 'pkFactory', + 'serializeFunctions', + 'raw', + 'authSource', + 'ignoreUndefined', + 'readConcern', + 'retryMiliSeconds', + 'numberOfRetries', + 'useBigInt64', + 'promoteBuffers', + 'promoteLongs', + 'bsonRegExp', + 'enableUtf8Validation', + 'promoteValues', + 'compression', + 'retryWrites', + 'timeoutMS' +]; + +/** @internal */ +export interface DbPrivate { + options?: DbOptions; + readPreference?: ReadPreference; + pkFactory: PkFactory; + readConcern?: ReadConcern; + bsonOptions: BSONSerializeOptions; + writeConcern?: WriteConcern; + namespace: MongoDBNamespace; +} + +/** @public */ +export interface DbOptions extends BSONSerializeOptions, WriteConcernOptions { + /** If the database authentication is dependent on another databaseName. */ + authSource?: string; + /** Force server to assign _id values instead of driver. */ + forceServerObjectId?: boolean; + /** The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST). */ + readPreference?: ReadPreferenceLike; + /** A primary key factory object for generation of custom _id keys. */ + pkFactory?: PkFactory; + /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcern; + /** Should retry failed writes */ + retryWrites?: boolean; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** + * The **Db** class is a class that represents a MongoDB Database. + * @public + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * interface Pet { + * name: string; + * kind: 'dog' | 'cat' | 'fish'; + * } + * + * const client = new MongoClient('mongodb://localhost:27017'); + * const db = client.db(); + * + * // Create a collection that validates our union + * await db.createCollection('pets', { + * validator: { $expr: { $in: ['$kind', ['dog', 'cat', 'fish']] } } + * }) + * ``` + */ +export class Db { + /** @internal */ + s: DbPrivate; + + /** @internal */ + readonly client: MongoClient; + + public static SYSTEM_NAMESPACE_COLLECTION = CONSTANTS.SYSTEM_NAMESPACE_COLLECTION; + public static SYSTEM_INDEX_COLLECTION = CONSTANTS.SYSTEM_INDEX_COLLECTION; + public static SYSTEM_PROFILE_COLLECTION = CONSTANTS.SYSTEM_PROFILE_COLLECTION; + public static SYSTEM_USER_COLLECTION = CONSTANTS.SYSTEM_USER_COLLECTION; + public static SYSTEM_COMMAND_COLLECTION = CONSTANTS.SYSTEM_COMMAND_COLLECTION; + public static SYSTEM_JS_COLLECTION = CONSTANTS.SYSTEM_JS_COLLECTION; + + /** + * Creates a new Db instance. + * + * Db name cannot contain a dot, the server may apply more restrictions when an operation is run. + * + * @param client - The MongoClient for the database. + * @param databaseName - The name of the database this instance represents. + * @param options - Optional settings for Db construction. + */ + constructor(client: MongoClient, databaseName: string, options?: DbOptions) { + options = options ?? {}; + + // Filter the options + options = filterOptions(options, DB_OPTIONS_ALLOW_LIST); + + // Ensure there are no dots in database name + if (typeof databaseName === 'string' && databaseName.includes('.')) { + throw new MongoInvalidArgumentError(`Database names cannot contain the character '.'`); + } + + // Internal state of the db object + this.s = { + // Options + options, + // Unpack read preference + readPreference: ReadPreference.fromOptions(options), + // Merge bson options + bsonOptions: resolveBSONOptions(options, client), + // Set up the primary key factory or fallback to ObjectId + pkFactory: options?.pkFactory ?? DEFAULT_PK_FACTORY, + // ReadConcern + readConcern: ReadConcern.fromOptions(options), + writeConcern: WriteConcern.fromOptions(options), + // Namespace + namespace: new MongoDBNamespace(databaseName) + }; + + this.client = client; + } + + get databaseName(): string { + return this.s.namespace.db; + } + + // Options + get options(): DbOptions | undefined { + return this.s.options; + } + + /** + * Check if a secondary can be used (because the read preference is *not* set to primary) + */ + get secondaryOk(): boolean { + return this.s.readPreference?.preference !== 'primary' || false; + } + + get readConcern(): ReadConcern | undefined { + return this.s.readConcern; + } + + /** + * The current readPreference of the Db. If not explicitly defined for + * this Db, will be inherited from the parent MongoClient + */ + get readPreference(): ReadPreference { + if (this.s.readPreference == null) { + return this.client.readPreference; + } + + return this.s.readPreference; + } + + get bsonOptions(): BSONSerializeOptions { + return this.s.bsonOptions; + } + + // get the write Concern + get writeConcern(): WriteConcern | undefined { + return this.s.writeConcern; + } + + get namespace(): string { + return this.s.namespace.toString(); + } + + /** + * Create a new collection on a server with the specified options. Use this to create capped collections. + * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/ + * + * Collection namespace validation is performed server-side. + * + * @param name - The name of the collection to create + * @param options - Optional settings for the command + */ + async createCollection( + name: string, + options?: CreateCollectionOptions + ): Promise> { + return await executeOperation( + this.client, + new CreateCollectionOperation(this, name, resolveOptions(this, options)) as TODO_NODE_3286 + ); + } + + /** + * Execute a command + * + * @remarks + * This command does not inherit options from the MongoClient. + * + * The driver will ensure the following fields are attached to the command sent to the server: + * - `lsid` - sourced from an implicit session or options.session + * - `$readPreference` - defaults to primary or can be configured by options.readPreference + * - `$db` - sourced from the name of this database + * + * If the client has a serverApi setting: + * - `apiVersion` + * - `apiStrict` + * - `apiDeprecationErrors` + * + * When in a transaction: + * - `readConcern` - sourced from readConcern set on the TransactionOptions + * - `writeConcern` - sourced from writeConcern set on the TransactionOptions + * + * Attaching any of the above fields to the command will have no effect as the driver will overwrite the value. + * + * @param command - The command to run + * @param options - Optional settings for the command + */ + async command(command: Document, options?: RunCommandOptions): Promise { + // Intentionally, we do not inherit options from parent for this operation. + return await executeOperation( + this.client, + new RunCommandOperation(this, command, { + ...resolveBSONOptions(options), + session: options?.session, + readPreference: options?.readPreference + }) + ); + } + + /** + * Execute an aggregation framework pipeline against the database, needs MongoDB \>= 3.6 + * + * @param pipeline - An array of aggregation stages to be executed + * @param options - Optional settings for the command + */ + aggregate( + pipeline: Document[] = [], + options?: AggregateOptions + ): AggregationCursor { + return new AggregationCursor( + this.client, + this.s.namespace, + pipeline, + resolveOptions(this, options) + ); + } + + /** Return the Admin db instance */ + admin(): Admin { + return new Admin(this); + } + + /** + * Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly. + * + * Collection namespace validation is performed server-side. + * + * @param name - the collection name we wish to access. + * @returns return the new Collection instance + */ + collection( + name: string, + options: CollectionOptions = {} + ): Collection { + if (typeof options === 'function') { + throw new MongoInvalidArgumentError('The callback form of this helper has been removed.'); + } + return new Collection(this, name, resolveOptions(this, options)); + } + + /** + * Get all the db statistics. + * + * @param options - Optional settings for the command + */ + async stats(options?: DbStatsOptions): Promise { + return await executeOperation( + this.client, + new DbStatsOperation(this, resolveOptions(this, options)) + ); + } + + /** + * List all collections of this database with optional filter + * + * @param filter - Query to filter collections by + * @param options - Optional settings for the command + */ + listCollections( + filter: Document, + options: Exclude & { nameOnly: true } + ): ListCollectionsCursor>; + listCollections( + filter: Document, + options: Exclude & { nameOnly: false } + ): ListCollectionsCursor; + listCollections< + T extends Pick | CollectionInfo = + | Pick + | CollectionInfo + >(filter?: Document, options?: ListCollectionsOptions): ListCollectionsCursor; + listCollections< + T extends Pick | CollectionInfo = + | Pick + | CollectionInfo + >(filter: Document = {}, options: ListCollectionsOptions = {}): ListCollectionsCursor { + return new ListCollectionsCursor(this, filter, resolveOptions(this, options)); + } + + /** + * Rename a collection. + * + * @remarks + * This operation does not inherit options from the MongoClient. + * + * @param fromCollection - Name of current collection to rename + * @param toCollection - New name of of the collection + * @param options - Optional settings for the command + */ + async renameCollection( + fromCollection: string, + toCollection: string, + options?: RenameOptions + ): Promise> { + // Intentionally, we do not inherit options from parent for this operation. + return await executeOperation( + this.client, + new RenameOperation( + this.collection(fromCollection) as TODO_NODE_3286, + toCollection, + { ...options, new_collection: true, readPreference: ReadPreference.primary } + ) as TODO_NODE_3286 + ); + } + + /** + * Drop a collection from the database, removing it permanently. New accesses will create a new collection. + * + * @param name - Name of collection to drop + * @param options - Optional settings for the command + */ + async dropCollection(name: string, options?: DropCollectionOptions): Promise { + return await executeOperation( + this.client, + new DropCollectionOperation(this, name, resolveOptions(this, options)) + ); + } + + /** + * Drop a database, removing it permanently from the server. + * + * @param options - Optional settings for the command + */ + async dropDatabase(options?: DropDatabaseOptions): Promise { + return await executeOperation( + this.client, + new DropDatabaseOperation(this, resolveOptions(this, options)) + ); + } + + /** + * Fetch all collections for the current db. + * + * @param options - Optional settings for the command + */ + async collections(options?: ListCollectionsOptions): Promise { + return await executeOperation( + this.client, + new CollectionsOperation(this, resolveOptions(this, options)) + ); + } + + /** + * Creates an index on the db and collection. + * + * @param name - Name of the collection to create the index on. + * @param indexSpec - Specify the field to index, or an index specification + * @param options - Optional settings for the command + */ + async createIndex( + name: string, + indexSpec: IndexSpecification, + options?: CreateIndexesOptions + ): Promise { + const indexes = await executeOperation( + this.client, + CreateIndexesOperation.fromIndexSpecification(this, name, indexSpec, options) + ); + return indexes[0]; + } + + /** + * Remove a user from a database + * + * @param username - The username to remove + * @param options - Optional settings for the command + */ + async removeUser(username: string, options?: RemoveUserOptions): Promise { + return await executeOperation( + this.client, + new RemoveUserOperation(this, username, resolveOptions(this, options)) + ); + } + + /** + * Set the current profiling level of MongoDB + * + * @param level - The new profiling level (off, slow_only, all). + * @param options - Optional settings for the command + */ + async setProfilingLevel( + level: ProfilingLevel, + options?: SetProfilingLevelOptions + ): Promise { + return await executeOperation( + this.client, + new SetProfilingLevelOperation(this, level, resolveOptions(this, options)) + ); + } + + /** + * Retrieve the current profiling Level for MongoDB + * + * @param options - Optional settings for the command + */ + async profilingLevel(options?: ProfilingLevelOptions): Promise { + return await executeOperation( + this.client, + new ProfilingLevelOperation(this, resolveOptions(this, options)) + ); + } + + /** + * Retrieves this collections index info. + * + * @param name - The name of the collection. + * @param options - Optional settings for the command + */ + indexInformation( + name: string, + options: IndexInformationOptions & { full: true } + ): Promise; + indexInformation( + name: string, + options: IndexInformationOptions & { full?: false } + ): Promise; + indexInformation( + name: string, + options: IndexInformationOptions + ): Promise; + indexInformation(name: string): Promise; + async indexInformation( + name: string, + options?: IndexInformationOptions + ): Promise { + return await this.collection(name).indexInformation(resolveOptions(this, options)); + } + + /** + * Create a new Change Stream, watching for new changes (insertions, updates, + * replacements, deletions, and invalidations) in this database. Will ignore all + * changes to system collections. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to provide the schema that may be defined for all the collections within this database + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TSchema - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch< + TSchema extends Document = Document, + TChange extends Document = ChangeStreamDocument + >(pipeline: Document[] = [], options: ChangeStreamOptions = {}): ChangeStream { + // Allow optionally not specifying a pipeline + if (!Array.isArray(pipeline)) { + options = pipeline; + pipeline = []; + } + + return new ChangeStream(this, pipeline, resolveOptions(this, options)); + } + + /** + * A low level cursor API providing basic driver functionality: + * - ClientSession management + * - ReadPreference for server selection + * - Running getMores automatically when a local batch is exhausted + * + * @param command - The command that will start a cursor on the server. + * @param options - Configurations for running the command, bson options will apply to getMores + */ + runCursorCommand(command: Document, options?: RunCursorCommandOptions): RunCommandCursor { + return new RunCommandCursor(this, command, options); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/deps.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/deps.ts new file mode 100644 index 000000000..c3517ebc5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/deps.ts @@ -0,0 +1,280 @@ +/* eslint-disable @typescript-eslint/no-var-requires */ +import { type Stream } from './cmap/connect'; +import { MongoMissingDependencyError } from './error'; +import type { Callback } from './utils'; + +function makeErrorModule(error: any) { + const props = error ? { kModuleError: error } : {}; + return new Proxy(props, { + get: (_: any, key: any) => { + if (key === 'kModuleError') { + return error; + } + throw error; + }, + set: () => { + throw error; + } + }); +} + +export type Kerberos = typeof import('kerberos') | { kModuleError: MongoMissingDependencyError }; + +export function getKerberos(): Kerberos { + let kerberos: Kerberos; + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + kerberos = require('kerberos'); + } catch (error) { + kerberos = makeErrorModule( + new MongoMissingDependencyError( + 'Optional module `kerberos` not found. Please install it to enable kerberos authentication', + { cause: error, dependencyName: 'kerberos' } + ) + ); + } + return kerberos; +} + +export interface KerberosClient { + step(challenge: string): Promise; + step(challenge: string, callback: Callback): void; + wrap(challenge: string, options: { user: string }): Promise; + wrap(challenge: string, options: { user: string }, callback: Callback): void; + unwrap(challenge: string): Promise; + unwrap(challenge: string, callback: Callback): void; +} + +type ZStandardLib = { + /** + * Compress using zstd. + * @param buf - Buffer to be compressed. + */ + compress(buf: Buffer, level?: number): Promise; + + /** + * Decompress using zstd. + */ + decompress(buf: Buffer): Promise; +}; + +export type ZStandard = ZStandardLib | { kModuleError: MongoMissingDependencyError }; + +export function getZstdLibrary(): ZStandardLib | { kModuleError: MongoMissingDependencyError } { + let ZStandard: ZStandardLib | { kModuleError: MongoMissingDependencyError }; + try { + ZStandard = require('@mongodb-js/zstd'); + } catch (error) { + ZStandard = makeErrorModule( + new MongoMissingDependencyError( + 'Optional module `@mongodb-js/zstd` not found. Please install it to enable zstd compression', + { cause: error, dependencyName: 'zstd' } + ) + ); + } + + return ZStandard; +} + +/** + * @internal + * Copy of the AwsCredentialIdentityProvider interface from [`smithy/types`](https://socket.dev/npm/package/\@smithy/types/files/1.1.1/dist-types/identity/awsCredentialIdentity.d.ts), + * the return type of the aws-sdk's `fromNodeProviderChain().provider()`. + */ +export interface AWSCredentials { + accessKeyId: string; + secretAccessKey: string; + sessionToken: string; + expiration?: Date; +} + +type CredentialProvider = { + fromNodeProviderChain( + this: void, + options: { clientConfig: { region: string } } + ): () => Promise; + fromNodeProviderChain(this: void): () => Promise; +}; + +export function getAwsCredentialProvider(): + | CredentialProvider + | { kModuleError: MongoMissingDependencyError } { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const credentialProvider = require('@aws-sdk/credential-providers'); + return credentialProvider; + } catch (error) { + return makeErrorModule( + new MongoMissingDependencyError( + 'Optional module `@aws-sdk/credential-providers` not found.' + + ' Please install it to enable getting aws credentials via the official sdk.', + { cause: error, dependencyName: '@aws-sdk/credential-providers' } + ) + ); + } +} + +/** @internal */ +export type GcpMetadata = + | typeof import('gcp-metadata') + | { kModuleError: MongoMissingDependencyError }; + +export function getGcpMetadata(): GcpMetadata { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const credentialProvider = require('gcp-metadata'); + return credentialProvider; + } catch (error) { + return makeErrorModule( + new MongoMissingDependencyError( + 'Optional module `gcp-metadata` not found.' + + ' Please install it to enable getting gcp credentials via the official sdk.', + { cause: error, dependencyName: 'gcp-metadata' } + ) + ); + } +} + +/** @internal */ +export type SnappyLib = { + /** + * In order to support both we must check the return value of the function + * @param buf - Buffer to be compressed + */ + compress(buf: Buffer): Promise; + + /** + * In order to support both we must check the return value of the function + * @param buf - Buffer to be compressed + */ + uncompress(buf: Buffer, opt: { asBuffer: true }): Promise; +}; + +export function getSnappy(): SnappyLib | { kModuleError: MongoMissingDependencyError } { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const value = require('snappy'); + return value; + } catch (error) { + const kModuleError = new MongoMissingDependencyError( + 'Optional module `snappy` not found. Please install it to enable snappy compression', + { cause: error, dependencyName: 'snappy' } + ); + return { kModuleError }; + } +} + +export type SocksLib = { + SocksClient: { + createConnection(options: { + command: 'connect'; + destination: { host: string; port: number }; + proxy: { + /** host and port are ignored because we pass existing_socket */ + host: 'iLoveJavaScript'; + port: 0; + type: 5; + userId?: string; + password?: string; + }; + timeout?: number; + /** We always create our own socket, and pass it to this API for proxy negotiation */ + existing_socket: Stream; + }): Promise<{ socket: Stream }>; + }; +}; + +export function getSocks(): SocksLib | { kModuleError: MongoMissingDependencyError } { + try { + // Ensure you always wrap an optional require in the try block NODE-3199 + const value = require('socks'); + return value; + } catch (error) { + const kModuleError = new MongoMissingDependencyError( + 'Optional module `socks` not found. Please install it to connections over a SOCKS5 proxy', + { cause: error, dependencyName: 'socks' } + ); + return { kModuleError }; + } +} + +interface AWS4 { + /** + * Created these inline types to better assert future usage of this API + * @param options - options for request + * @param credentials - AWS credential details, sessionToken should be omitted entirely if its false-y + */ + sign( + this: void, + options: { + path: '/'; + body: string; + host: string; + method: 'POST'; + headers: { + 'Content-Type': 'application/x-www-form-urlencoded'; + 'Content-Length': number; + 'X-MongoDB-Server-Nonce': string; + 'X-MongoDB-GS2-CB-Flag': 'n'; + }; + service: string; + region: string; + }, + credentials: + | { + accessKeyId: string; + secretAccessKey: string; + sessionToken: string; + } + | { + accessKeyId: string; + secretAccessKey: string; + } + | undefined + ): { + headers: { + Authorization: string; + 'X-Amz-Date': string; + }; + }; +} + +export const aws4: AWS4 | { kModuleError: MongoMissingDependencyError } = loadAws4(); + +function loadAws4() { + let aws4: AWS4 | { kModuleError: MongoMissingDependencyError }; + try { + aws4 = require('aws4'); + } catch (error) { + aws4 = makeErrorModule( + new MongoMissingDependencyError( + 'Optional module `aws4` not found. Please install it to enable AWS authentication', + { cause: error, dependencyName: 'aws4' } + ) + ); + } + + return aws4; +} + +/** A utility function to get the instance of mongodb-client-encryption, if it exists. */ +export function getMongoDBClientEncryption(): + | typeof import('mongodb-client-encryption') + | { kModuleError: MongoMissingDependencyError } { + let mongodbClientEncryption = null; + + try { + // NOTE(NODE-3199): Ensure you always wrap an optional require literally in the try block + // Cannot be moved to helper utility function, bundlers search and replace the actual require call + // in a way that makes this line throw at bundle time, not runtime, catching here will make bundling succeed + mongodbClientEncryption = require('mongodb-client-encryption'); + } catch (error) { + const kModuleError = new MongoMissingDependencyError( + 'Optional module `mongodb-client-encryption` not found. Please install it to use auto encryption or ClientEncryption.', + { cause: error, dependencyName: 'mongodb-client-encryption' } + ); + return { kModuleError }; + } + + return mongodbClientEncryption; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/encrypter.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/encrypter.ts new file mode 100644 index 000000000..fbcf7c195 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/encrypter.ts @@ -0,0 +1,139 @@ +import { callbackify } from 'util'; + +import { AutoEncrypter, type AutoEncryptionOptions } from './client-side-encryption/auto_encrypter'; +import { MONGO_CLIENT_EVENTS } from './constants'; +import { getMongoDBClientEncryption } from './deps'; +import { MongoInvalidArgumentError, MongoMissingDependencyError } from './error'; +import { MongoClient, type MongoClientOptions } from './mongo_client'; +import { type Callback } from './utils'; + +/** @internal */ +const kInternalClient = Symbol('internalClient'); + +/** @internal */ +export interface EncrypterOptions { + autoEncryption: AutoEncryptionOptions; + maxPoolSize?: number; +} + +/** @internal */ +export class Encrypter { + [kInternalClient]: MongoClient | null; + bypassAutoEncryption: boolean; + needsConnecting: boolean; + autoEncrypter: AutoEncrypter; + + constructor(client: MongoClient, uri: string, options: MongoClientOptions) { + if (typeof options.autoEncryption !== 'object') { + throw new MongoInvalidArgumentError('Option "autoEncryption" must be specified'); + } + // initialize to null, if we call getInternalClient, we may set this it is important to not overwrite those function calls. + this[kInternalClient] = null; + + this.bypassAutoEncryption = !!options.autoEncryption.bypassAutoEncryption; + this.needsConnecting = false; + + if (options.maxPoolSize === 0 && options.autoEncryption.keyVaultClient == null) { + options.autoEncryption.keyVaultClient = client; + } else if (options.autoEncryption.keyVaultClient == null) { + options.autoEncryption.keyVaultClient = this.getInternalClient(client, uri, options); + } + + if (this.bypassAutoEncryption) { + options.autoEncryption.metadataClient = undefined; + } else if (options.maxPoolSize === 0) { + options.autoEncryption.metadataClient = client; + } else { + options.autoEncryption.metadataClient = this.getInternalClient(client, uri, options); + } + + if (options.proxyHost) { + options.autoEncryption.proxyOptions = { + proxyHost: options.proxyHost, + proxyPort: options.proxyPort, + proxyUsername: options.proxyUsername, + proxyPassword: options.proxyPassword + }; + } + + this.autoEncrypter = new AutoEncrypter(client, options.autoEncryption); + } + + getInternalClient(client: MongoClient, uri: string, options: MongoClientOptions): MongoClient { + // TODO(NODE-4144): Remove new variable for type narrowing + let internalClient = this[kInternalClient]; + if (internalClient == null) { + const clonedOptions: MongoClientOptions = {}; + + for (const key of [ + ...Object.getOwnPropertyNames(options), + ...Object.getOwnPropertySymbols(options) + ] as string[]) { + if (['autoEncryption', 'minPoolSize', 'servers', 'caseTranslate', 'dbName'].includes(key)) + continue; + Reflect.set(clonedOptions, key, Reflect.get(options, key)); + } + + clonedOptions.minPoolSize = 0; + + internalClient = new MongoClient(uri, clonedOptions); + this[kInternalClient] = internalClient; + + for (const eventName of MONGO_CLIENT_EVENTS) { + for (const listener of client.listeners(eventName)) { + internalClient.on(eventName, listener); + } + } + + client.on('newListener', (eventName, listener) => { + internalClient?.on(eventName, listener); + }); + + this.needsConnecting = true; + } + return internalClient; + } + + async connectInternalClient(): Promise { + // TODO(NODE-4144): Remove new variable for type narrowing + const internalClient = this[kInternalClient]; + if (this.needsConnecting && internalClient != null) { + this.needsConnecting = false; + await internalClient.connect(); + } + } + + closeCallback(client: MongoClient, force: boolean, callback: Callback) { + callbackify(this.close.bind(this))(client, force, callback); + } + + async close(client: MongoClient, force: boolean): Promise { + let error; + try { + await this.autoEncrypter.teardown(force); + } catch (autoEncrypterError) { + error = autoEncrypterError; + } + const internalClient = this[kInternalClient]; + if (internalClient != null && client !== internalClient) { + return await internalClient.close(force); + } + if (error != null) { + throw error; + } + } + + static checkForMongoCrypt(): void { + const mongodbClientEncryption = getMongoDBClientEncryption(); + if ('kModuleError' in mongodbClientEncryption) { + throw new MongoMissingDependencyError( + 'Auto-encryption requested, but the module is not installed. ' + + 'Please add `mongodb-client-encryption` as a dependency of your project', + { + cause: mongodbClientEncryption['kModuleError'], + dependencyName: 'mongodb-client-encryption' + } + ); + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/error.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/error.ts new file mode 100644 index 000000000..28c269af6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/error.ts @@ -0,0 +1,1336 @@ +import type { Document } from './bson'; +import type { TopologyVersion } from './sdam/server_description'; +import type { TopologyDescription } from './sdam/topology_description'; + +/** @public */ +export type AnyError = MongoError | Error; + +/** @internal */ +const kErrorLabels = Symbol('errorLabels'); + +/** + * @internal + * The legacy error message from the server that indicates the node is not a writable primary + * https://github.com/mongodb/specifications/blob/b07c26dc40d04ac20349f989db531c9845fdd755/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-writable-primary-and-node-is-recovering + */ +export const LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE = new RegExp('not master', 'i'); + +/** + * @internal + * The legacy error message from the server that indicates the node is not a primary or secondary + * https://github.com/mongodb/specifications/blob/b07c26dc40d04ac20349f989db531c9845fdd755/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-writable-primary-and-node-is-recovering + */ +export const LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE = new RegExp( + 'not master or secondary', + 'i' +); + +/** + * @internal + * The error message from the server that indicates the node is recovering + * https://github.com/mongodb/specifications/blob/b07c26dc40d04ac20349f989db531c9845fdd755/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-writable-primary-and-node-is-recovering + */ +export const NODE_IS_RECOVERING_ERROR_MESSAGE = new RegExp('node is recovering', 'i'); + +/** @internal MongoDB Error Codes */ +export const MONGODB_ERROR_CODES = Object.freeze({ + HostUnreachable: 6, + HostNotFound: 7, + NetworkTimeout: 89, + ShutdownInProgress: 91, + PrimarySteppedDown: 189, + ExceededTimeLimit: 262, + SocketException: 9001, + NotWritablePrimary: 10107, + InterruptedAtShutdown: 11600, + InterruptedDueToReplStateChange: 11602, + NotPrimaryNoSecondaryOk: 13435, + NotPrimaryOrSecondary: 13436, + StaleShardVersion: 63, + StaleEpoch: 150, + StaleConfig: 13388, + RetryChangeStream: 234, + FailedToSatisfyReadPreference: 133, + CursorNotFound: 43, + LegacyNotPrimary: 10058, + WriteConcernFailed: 64, + NamespaceNotFound: 26, + IllegalOperation: 20, + MaxTimeMSExpired: 50, + UnknownReplWriteConcern: 79, + UnsatisfiableWriteConcern: 100, + Reauthenticate: 391 +} as const); + +// From spec@https://github.com/mongodb/specifications/blob/f93d78191f3db2898a59013a7ed5650352ef6da8/source/change-streams/change-streams.rst#resumable-error +export const GET_MORE_RESUMABLE_CODES = new Set([ + MONGODB_ERROR_CODES.HostUnreachable, + MONGODB_ERROR_CODES.HostNotFound, + MONGODB_ERROR_CODES.NetworkTimeout, + MONGODB_ERROR_CODES.ShutdownInProgress, + MONGODB_ERROR_CODES.PrimarySteppedDown, + MONGODB_ERROR_CODES.ExceededTimeLimit, + MONGODB_ERROR_CODES.SocketException, + MONGODB_ERROR_CODES.NotWritablePrimary, + MONGODB_ERROR_CODES.InterruptedAtShutdown, + MONGODB_ERROR_CODES.InterruptedDueToReplStateChange, + MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk, + MONGODB_ERROR_CODES.NotPrimaryOrSecondary, + MONGODB_ERROR_CODES.StaleShardVersion, + MONGODB_ERROR_CODES.StaleEpoch, + MONGODB_ERROR_CODES.StaleConfig, + MONGODB_ERROR_CODES.RetryChangeStream, + MONGODB_ERROR_CODES.FailedToSatisfyReadPreference, + MONGODB_ERROR_CODES.CursorNotFound +]); + +/** @public */ +export const MongoErrorLabel = Object.freeze({ + RetryableWriteError: 'RetryableWriteError', + TransientTransactionError: 'TransientTransactionError', + UnknownTransactionCommitResult: 'UnknownTransactionCommitResult', + ResumableChangeStreamError: 'ResumableChangeStreamError', + HandshakeError: 'HandshakeError', + ResetPool: 'ResetPool', + PoolRequstedRetry: 'PoolRequstedRetry', + InterruptInUseConnections: 'InterruptInUseConnections', + NoWritesPerformed: 'NoWritesPerformed' +} as const); + +/** @public */ +export type MongoErrorLabel = (typeof MongoErrorLabel)[keyof typeof MongoErrorLabel]; + +/** @public */ +export interface ErrorDescription extends Document { + message?: string; + errmsg?: string; + $err?: string; + errorLabels?: string[]; + errInfo?: Document; +} + +function isAggregateError(e: unknown): e is Error & { errors: Error[] } { + return e != null && typeof e === 'object' && 'errors' in e && Array.isArray(e.errors); +} + +/** + * @public + * @category Error + * + * @privateRemarks + * mongodb-client-encryption has a dependency on this error, it uses the constructor with a string argument + */ +export class MongoError extends Error { + /** @internal */ + [kErrorLabels]: Set; + /** + * This is a number in MongoServerError and a string in MongoDriverError + * @privateRemarks + * Define the type override on the subclasses when we can use the override keyword + */ + code?: number | string; + topologyVersion?: TopologyVersion; + connectionGeneration?: number; + override cause?: Error; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { cause?: Error }) { + super(message, options); + this[kErrorLabels] = new Set(); + } + + /** @internal */ + static buildErrorMessage(e: unknown): string { + if (typeof e === 'string') { + return e; + } + if (isAggregateError(e) && e.message.length === 0) { + return e.errors.length === 0 + ? 'AggregateError has an empty errors array. Please check the `cause` property for more information.' + : e.errors.map(({ message }) => message).join(', '); + } + + return e != null && typeof e === 'object' && 'message' in e && typeof e.message === 'string' + ? e.message + : 'empty error message'; + } + + override get name(): string { + return 'MongoError'; + } + + /** Legacy name for server error responses */ + get errmsg(): string { + return this.message; + } + + /** + * Checks the error to see if it has an error label + * + * @param label - The error label to check for + * @returns returns true if the error has the provided error label + */ + hasErrorLabel(label: string): boolean { + return this[kErrorLabels].has(label); + } + + addErrorLabel(label: string): void { + this[kErrorLabels].add(label); + } + + get errorLabels(): string[] { + return Array.from(this[kErrorLabels]); + } +} + +/** + * An error coming from the mongo server + * + * @public + * @category Error + */ +export class MongoServerError extends MongoError { + /** Raw error result document returned by server. */ + errorResponse: ErrorDescription; + codeName?: string; + writeConcernError?: Document; + errInfo?: Document; + ok?: number; + [key: string]: any; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: ErrorDescription) { + super(message.message || message.errmsg || message.$err || 'n/a'); + if (message.errorLabels) { + this[kErrorLabels] = new Set(message.errorLabels); + } + + this.errorResponse = message; + + for (const name in message) { + if ( + name !== 'errorLabels' && + name !== 'errmsg' && + name !== 'message' && + name !== 'errorResponse' + ) { + this[name] = message[name]; + } + } + } + + override get name(): string { + return 'MongoServerError'; + } +} + +/** + * An error generated by the driver + * + * @public + * @category Error + */ +export class MongoDriverError extends MongoError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { cause?: Error }) { + super(message, options); + } + + override get name(): string { + return 'MongoDriverError'; + } +} + +/** + * An error generated when the driver API is used incorrectly + * + * @privateRemarks + * Should **never** be directly instantiated + * + * @public + * @category Error + */ + +export class MongoAPIError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { cause?: Error }) { + super(message, options); + } + + override get name(): string { + return 'MongoAPIError'; + } +} + +/** + * An error generated when the driver encounters unexpected input + * or reaches an unexpected/invalid internal state + * + * @privateRemarks + * Should **never** be directly instantiated. + * + * @public + * @category Error + */ +export class MongoRuntimeError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { cause?: Error }) { + super(message, options); + } + + override get name(): string { + return 'MongoRuntimeError'; + } +} + +/** + * An error generated when a batch command is re-executed after one of the commands in the batch + * has failed + * + * @public + * @category Error + */ +export class MongoBatchReExecutionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'This batch has already been executed, create new batch to execute') { + super(message); + } + + override get name(): string { + return 'MongoBatchReExecutionError'; + } +} + +/** + * An error generated when the driver fails to decompress + * data received from the server. + * + * @public + * @category Error + */ +export class MongoDecompressionError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoDecompressionError'; + } +} + +/** + * An error thrown when the user attempts to operate on a database or collection through a MongoClient + * that has not yet successfully called the "connect" method + * + * @public + * @category Error + */ +export class MongoNotConnectedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoNotConnectedError'; + } +} + +/** + * An error generated when the user makes a mistake in the usage of transactions. + * (e.g. attempting to commit a transaction with a readPreference other than primary) + * + * @public + * @category Error + */ +export class MongoTransactionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoTransactionError'; + } +} + +/** + * An error generated when the user attempts to operate + * on a session that has expired or has been closed. + * + * @public + * @category Error + */ +export class MongoExpiredSessionError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Cannot use a session that has ended') { + super(message); + } + + override get name(): string { + return 'MongoExpiredSessionError'; + } +} + +/** + * A error generated when the user attempts to authenticate + * via Kerberos, but fails to connect to the Kerberos client. + * + * @public + * @category Error + */ +export class MongoKerberosError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoKerberosError'; + } +} + +/** + * A error generated when the user attempts to authenticate + * via AWS, but fails + * + * @public + * @category Error + */ +export class MongoAWSError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: { cause?: Error }) { + super(message, options); + } + + override get name(): string { + return 'MongoAWSError'; + } +} + +/** + * A error generated when the user attempts to authenticate + * via Azure, but fails. + * + * @public + * @category Error + */ +export class MongoAzureError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoAzureError'; + } +} + +/** + * An error generated when a ChangeStream operation fails to execute. + * + * @public + * @category Error + */ +export class MongoChangeStreamError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoChangeStreamError'; + } +} + +/** + * An error thrown when the user calls a function or method not supported on a tailable cursor + * + * @public + * @category Error + */ +export class MongoTailableCursorError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Tailable cursor does not support this operation') { + super(message); + } + + override get name(): string { + return 'MongoTailableCursorError'; + } +} + +/** An error generated when a GridFSStream operation fails to execute. + * + * @public + * @category Error + */ +export class MongoGridFSStreamError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoGridFSStreamError'; + } +} + +/** + * An error generated when a malformed or invalid chunk is + * encountered when reading from a GridFSStream. + * + * @public + * @category Error + */ +export class MongoGridFSChunkError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoGridFSChunkError'; + } +} + +/** + * An error generated when a **parsable** unexpected response comes from the server. + * This is generally an error where the driver in a state expecting a certain behavior to occur in + * the next message from MongoDB but it receives something else. + * This error **does not** represent an issue with wire message formatting. + * + * #### Example + * When an operation fails, it is the driver's job to retry it. It must perform serverSelection + * again to make sure that it attempts the operation against a server in a good state. If server + * selection returns a server that does not support retryable operations, this error is used. + * This scenario is unlikely as retryable support would also have been determined on the first attempt + * but it is possible the state change could report a selectable server that does not support retries. + * + * @public + * @category Error + */ +export class MongoUnexpectedServerResponseError extends MongoRuntimeError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoUnexpectedServerResponseError'; + } +} + +/** + * An error thrown when the user attempts to add options to a cursor that has already been + * initialized + * + * @public + * @category Error + */ +export class MongoCursorInUseError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Cursor is already initialized') { + super(message); + } + + override get name(): string { + return 'MongoCursorInUseError'; + } +} + +/** + * An error generated when an attempt is made to operate + * on a closed/closing server. + * + * @public + * @category Error + */ +export class MongoServerClosedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Server is closed') { + super(message); + } + + override get name(): string { + return 'MongoServerClosedError'; + } +} + +/** + * An error thrown when an attempt is made to read from a cursor that has been exhausted + * + * @public + * @category Error + */ +export class MongoCursorExhaustedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message?: string) { + super(message || 'Cursor is exhausted'); + } + + override get name(): string { + return 'MongoCursorExhaustedError'; + } +} + +/** + * An error generated when an attempt is made to operate on a + * dropped, or otherwise unavailable, database. + * + * @public + * @category Error + */ +export class MongoTopologyClosedError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message = 'Topology is closed') { + super(message); + } + + override get name(): string { + return 'MongoTopologyClosedError'; + } +} + +/** @internal */ +const kBeforeHandshake = Symbol('beforeHandshake'); +export function isNetworkErrorBeforeHandshake(err: MongoNetworkError): boolean { + return err[kBeforeHandshake] === true; +} + +/** @public */ +export interface MongoNetworkErrorOptions { + /** Indicates the timeout happened before a connection handshake completed */ + beforeHandshake?: boolean; + cause?: Error; +} + +/** + * An error indicating an issue with the network, including TCP errors and timeouts. + * @public + * @category Error + */ +export class MongoNetworkError extends MongoError { + /** @internal */ + [kBeforeHandshake]?: boolean; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: MongoNetworkErrorOptions) { + super(message, { cause: options?.cause }); + + if (options && typeof options.beforeHandshake === 'boolean') { + this[kBeforeHandshake] = options.beforeHandshake; + } + } + + override get name(): string { + return 'MongoNetworkError'; + } +} + +/** + * An error indicating a network timeout occurred + * @public + * @category Error + * + * @privateRemarks + * mongodb-client-encryption has a dependency on this error with an instanceof check + */ +export class MongoNetworkTimeoutError extends MongoNetworkError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options?: MongoNetworkErrorOptions) { + super(message, options); + } + + override get name(): string { + return 'MongoNetworkTimeoutError'; + } +} + +/** + * An error used when attempting to parse a value (like a connection string) + * @public + * @category Error + */ +export class MongoParseError extends MongoDriverError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoParseError'; + } +} + +/** + * An error generated when the user supplies malformed or unexpected arguments + * or when a required argument or field is not provided. + * + * + * @public + * @category Error + */ +export class MongoInvalidArgumentError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoInvalidArgumentError'; + } +} + +/** + * An error generated when a feature that is not enabled or allowed for the current server + * configuration is used + * + * + * @public + * @category Error + */ +export class MongoCompatibilityError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoCompatibilityError'; + } +} + +/** + * An error generated when the user fails to provide authentication credentials before attempting + * to connect to a mongo server instance. + * + * + * @public + * @category Error + */ +export class MongoMissingCredentialsError extends MongoAPIError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string) { + super(message); + } + + override get name(): string { + return 'MongoMissingCredentialsError'; + } +} + +/** + * An error generated when a required module or dependency is not present in the local environment + * + * @public + * @category Error + */ +export class MongoMissingDependencyError extends MongoAPIError { + dependencyName: string; + + /** @remarks This property is assigned in the `Error` constructor. */ + declare cause: Error; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, options: { cause: Error; dependencyName: string }) { + super(message, options); + this.dependencyName = options.dependencyName; + } + + override get name(): string { + return 'MongoMissingDependencyError'; + } +} +/** + * An error signifying a general system issue + * @public + * @category Error + */ +export class MongoSystemError extends MongoError { + /** An optional reason context, such as an error saved during flow of monitoring and selecting servers */ + reason?: TopologyDescription; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, reason: TopologyDescription) { + if (reason && reason.error) { + super(MongoError.buildErrorMessage(reason.error.message || reason.error), { + cause: reason.error + }); + } else { + super(message); + } + + if (reason) { + this.reason = reason; + } + + this.code = reason.error?.code; + } + + override get name(): string { + return 'MongoSystemError'; + } +} + +/** + * An error signifying a client-side server selection error + * @public + * @category Error + */ +export class MongoServerSelectionError extends MongoSystemError { + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: string, reason: TopologyDescription) { + super(message, reason); + } + + override get name(): string { + return 'MongoServerSelectionError'; + } +} + +function makeWriteConcernResultObject(input: any) { + const output = Object.assign({}, input); + + if (output.ok === 0) { + output.ok = 1; + delete output.errmsg; + delete output.code; + delete output.codeName; + } + + return output; +} + +/** + * An error thrown when the server reports a writeConcernError + * @public + * @category Error + */ +export class MongoWriteConcernError extends MongoServerError { + /** The result document (provided if ok: 1) */ + result?: Document; + + /** + * **Do not use this constructor!** + * + * Meant for internal use only. + * + * @remarks + * This class is only meant to be constructed within the driver. This constructor is + * not subject to semantic versioning compatibility guarantees and may change at any time. + * + * @public + **/ + constructor(message: ErrorDescription, result?: Document) { + if (result && Array.isArray(result.errorLabels)) { + message.errorLabels = result.errorLabels; + } + + super(message); + this.errInfo = message.errInfo; + + if (result != null) { + this.result = makeWriteConcernResultObject(result); + } + } + + override get name(): string { + return 'MongoWriteConcernError'; + } +} + +// https://github.com/mongodb/specifications/blob/master/source/retryable-reads/retryable-reads.rst#retryable-error +const RETRYABLE_READ_ERROR_CODES = new Set([ + MONGODB_ERROR_CODES.HostUnreachable, + MONGODB_ERROR_CODES.HostNotFound, + MONGODB_ERROR_CODES.NetworkTimeout, + MONGODB_ERROR_CODES.ShutdownInProgress, + MONGODB_ERROR_CODES.PrimarySteppedDown, + MONGODB_ERROR_CODES.SocketException, + MONGODB_ERROR_CODES.NotWritablePrimary, + MONGODB_ERROR_CODES.InterruptedAtShutdown, + MONGODB_ERROR_CODES.InterruptedDueToReplStateChange, + MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk, + MONGODB_ERROR_CODES.NotPrimaryOrSecondary, + MONGODB_ERROR_CODES.ExceededTimeLimit +]); + +// see: https://github.com/mongodb/specifications/blob/master/source/retryable-writes/retryable-writes.rst#terms +const RETRYABLE_WRITE_ERROR_CODES = RETRYABLE_READ_ERROR_CODES; + +export function needsRetryableWriteLabel(error: Error, maxWireVersion: number): boolean { + // pre-4.4 server, then the driver adds an error label for every valid case + // execute operation will only inspect the label, code/message logic is handled here + if (error instanceof MongoNetworkError) { + return true; + } + + if (error instanceof MongoError) { + if ( + (maxWireVersion >= 9 || isRetryableWriteError(error)) && + !error.hasErrorLabel(MongoErrorLabel.HandshakeError) + ) { + // If we already have the error label no need to add it again. 4.4+ servers add the label. + // In the case where we have a handshake error, need to fall down to the logic checking + // the codes. + return false; + } + } + + if (error instanceof MongoWriteConcernError) { + return RETRYABLE_WRITE_ERROR_CODES.has(error.result?.code ?? error.code ?? 0); + } + + if (error instanceof MongoError && typeof error.code === 'number') { + return RETRYABLE_WRITE_ERROR_CODES.has(error.code); + } + + const isNotWritablePrimaryError = LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message); + if (isNotWritablePrimaryError) { + return true; + } + + const isNodeIsRecoveringError = NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message); + if (isNodeIsRecoveringError) { + return true; + } + + return false; +} + +export function isRetryableWriteError(error: MongoError): boolean { + return ( + error.hasErrorLabel(MongoErrorLabel.RetryableWriteError) || + error.hasErrorLabel(MongoErrorLabel.PoolRequstedRetry) + ); +} + +/** Determines whether an error is something the driver should attempt to retry */ +export function isRetryableReadError(error: MongoError): boolean { + const hasRetryableErrorCode = + typeof error.code === 'number' ? RETRYABLE_READ_ERROR_CODES.has(error.code) : false; + if (hasRetryableErrorCode) { + return true; + } + + if (error instanceof MongoNetworkError) { + return true; + } + + const isNotWritablePrimaryError = LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(error.message); + if (isNotWritablePrimaryError) { + return true; + } + + const isNodeIsRecoveringError = NODE_IS_RECOVERING_ERROR_MESSAGE.test(error.message); + if (isNodeIsRecoveringError) { + return true; + } + + return false; +} + +const SDAM_RECOVERING_CODES = new Set([ + MONGODB_ERROR_CODES.ShutdownInProgress, + MONGODB_ERROR_CODES.PrimarySteppedDown, + MONGODB_ERROR_CODES.InterruptedAtShutdown, + MONGODB_ERROR_CODES.InterruptedDueToReplStateChange, + MONGODB_ERROR_CODES.NotPrimaryOrSecondary +]); + +const SDAM_NOT_PRIMARY_CODES = new Set([ + MONGODB_ERROR_CODES.NotWritablePrimary, + MONGODB_ERROR_CODES.NotPrimaryNoSecondaryOk, + MONGODB_ERROR_CODES.LegacyNotPrimary +]); + +const SDAM_NODE_SHUTTING_DOWN_ERROR_CODES = new Set([ + MONGODB_ERROR_CODES.InterruptedAtShutdown, + MONGODB_ERROR_CODES.ShutdownInProgress +]); + +function isRecoveringError(err: MongoError) { + if (typeof err.code === 'number') { + // If any error code exists, we ignore the error.message + return SDAM_RECOVERING_CODES.has(err.code); + } + + return ( + LEGACY_NOT_PRIMARY_OR_SECONDARY_ERROR_MESSAGE.test(err.message) || + NODE_IS_RECOVERING_ERROR_MESSAGE.test(err.message) + ); +} + +function isNotWritablePrimaryError(err: MongoError) { + if (typeof err.code === 'number') { + // If any error code exists, we ignore the error.message + return SDAM_NOT_PRIMARY_CODES.has(err.code); + } + + if (isRecoveringError(err)) { + return false; + } + + return LEGACY_NOT_WRITABLE_PRIMARY_ERROR_MESSAGE.test(err.message); +} + +export function isNodeShuttingDownError(err: MongoError): boolean { + return !!(typeof err.code === 'number' && SDAM_NODE_SHUTTING_DOWN_ERROR_CODES.has(err.code)); +} + +/** + * Determines whether SDAM can recover from a given error. If it cannot + * then the pool will be cleared, and server state will completely reset + * locally. + * + * @see https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#not-master-and-node-is-recovering + */ +export function isSDAMUnrecoverableError(error: MongoError): boolean { + // NOTE: null check is here for a strictly pre-CMAP world, a timeout or + // close event are considered unrecoverable + if (error instanceof MongoParseError || error == null) { + return true; + } + + return isRecoveringError(error) || isNotWritablePrimaryError(error); +} + +export function isNetworkTimeoutError(err: MongoError): err is MongoNetworkError { + return !!(err instanceof MongoNetworkError && err.message.match(/timed out/)); +} + +export function isResumableError(error?: Error, wireVersion?: number): boolean { + if (error == null || !(error instanceof MongoError)) { + return false; + } + + if (error instanceof MongoNetworkError) { + return true; + } + + if (wireVersion != null && wireVersion >= 9) { + // DRIVERS-1308: For 4.4 drivers running against 4.4 servers, drivers will add a special case to treat the CursorNotFound error code as resumable + if (error.code === MONGODB_ERROR_CODES.CursorNotFound) { + return true; + } + return error.hasErrorLabel(MongoErrorLabel.ResumableChangeStreamError); + } + + if (typeof error.code === 'number') { + return GET_MORE_RESUMABLE_CODES.has(error.code); + } + + return false; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/explain.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/explain.ts new file mode 100644 index 000000000..0d08e694a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/explain.ts @@ -0,0 +1,52 @@ +import { MongoInvalidArgumentError } from './error'; + +/** @public */ +export const ExplainVerbosity = Object.freeze({ + queryPlanner: 'queryPlanner', + queryPlannerExtended: 'queryPlannerExtended', + executionStats: 'executionStats', + allPlansExecution: 'allPlansExecution' +} as const); + +/** @public */ +export type ExplainVerbosity = string; + +/** + * For backwards compatibility, true is interpreted as "allPlansExecution" + * and false as "queryPlanner". Prior to server version 3.6, aggregate() + * ignores the verbosity parameter and executes in "queryPlanner". + * @public + */ +export type ExplainVerbosityLike = ExplainVerbosity | boolean; + +/** @public */ +export interface ExplainOptions { + /** Specifies the verbosity mode for the explain output. */ + explain?: ExplainVerbosityLike; +} + +/** @internal */ +export class Explain { + verbosity: ExplainVerbosity; + + constructor(verbosity: ExplainVerbosityLike) { + if (typeof verbosity === 'boolean') { + this.verbosity = verbosity + ? ExplainVerbosity.allPlansExecution + : ExplainVerbosity.queryPlanner; + } else { + this.verbosity = verbosity; + } + } + + static fromOptions(options?: ExplainOptions): Explain | undefined { + if (options?.explain == null) return; + + const explain = options.explain; + if (typeof explain === 'boolean' || typeof explain === 'string') { + return new Explain(explain); + } + + throw new MongoInvalidArgumentError('Field "explain" must be a string or a boolean'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/download.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/download.ts new file mode 100644 index 000000000..6b0fc57fc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/download.ts @@ -0,0 +1,424 @@ +import { Readable } from 'stream'; + +import type { Document, ObjectId } from '../bson'; +import type { Collection } from '../collection'; +import type { FindCursor } from '../cursor/find_cursor'; +import { + MongoGridFSChunkError, + MongoGridFSStreamError, + MongoInvalidArgumentError, + MongoRuntimeError +} from '../error'; +import type { FindOptions } from '../operations/find'; +import type { ReadPreference } from '../read_preference'; +import type { Sort } from '../sort'; +import type { Callback } from '../utils'; +import type { GridFSChunk } from './upload'; + +/** @public */ +export interface GridFSBucketReadStreamOptions { + sort?: Sort; + skip?: number; + /** + * 0-indexed non-negative byte offset from the beginning of the file + */ + start?: number; + /** + * 0-indexed non-negative byte offset to the end of the file contents + * to be returned by the stream. `end` is non-inclusive + */ + end?: number; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** @public */ +export interface GridFSBucketReadStreamOptionsWithRevision extends GridFSBucketReadStreamOptions { + /** The revision number relative to the oldest file with the given filename. 0 + * gets you the oldest file, 1 gets you the 2nd oldest, -1 gets you the + * newest. */ + revision?: number; +} + +/** @public */ +export interface GridFSFile { + _id: ObjectId; + length: number; + chunkSize: number; + filename: string; + metadata?: Document; + uploadDate: Date; + /** @deprecated Will be removed in the next major version. */ + contentType?: string; + /** @deprecated Will be removed in the next major version. */ + aliases?: string[]; +} + +/** @internal */ +export interface GridFSBucketReadStreamPrivate { + bytesRead: number; + bytesToTrim: number; + bytesToSkip: number; + chunks: Collection; + cursor?: FindCursor; + expected: number; + files: Collection; + filter: Document; + init: boolean; + expectedEnd: number; + file?: GridFSFile; + options: { + sort?: Sort; + skip?: number; + start: number; + end: number; + }; + readPreference?: ReadPreference; +} + +/** + * A readable stream that enables you to read buffers from GridFS. + * + * Do not instantiate this class directly. Use `openDownloadStream()` instead. + * @public + */ +export class GridFSBucketReadStream extends Readable { + /** @internal */ + s: GridFSBucketReadStreamPrivate; + + /** + * Fires when the stream loaded the file document corresponding to the provided id. + * @event + */ + static readonly FILE = 'file' as const; + + /** + * @param chunks - Handle for chunks collection + * @param files - Handle for files collection + * @param readPreference - The read preference to use + * @param filter - The filter to use to find the file document + * @internal + */ + constructor( + chunks: Collection, + files: Collection, + readPreference: ReadPreference | undefined, + filter: Document, + options?: GridFSBucketReadStreamOptions + ) { + super({ emitClose: true }); + this.s = { + bytesToTrim: 0, + bytesToSkip: 0, + bytesRead: 0, + chunks, + expected: 0, + files, + filter, + init: false, + expectedEnd: 0, + options: { + start: 0, + end: 0, + ...options + }, + readPreference + }; + } + + /** + * Reads from the cursor and pushes to the stream. + * Private Impl, do not call directly + * @internal + */ + override _read(): void { + if (this.destroyed) return; + waitForFile(this, () => doRead(this)); + } + + /** + * Sets the 0-based offset in bytes to start streaming from. Throws + * an error if this stream has entered flowing mode + * (e.g. if you've already called `on('data')`) + * + * @param start - 0-based offset in bytes to start streaming from + */ + start(start = 0): this { + throwIfInitialized(this); + this.s.options.start = start; + return this; + } + + /** + * Sets the 0-based offset in bytes to start streaming from. Throws + * an error if this stream has entered flowing mode + * (e.g. if you've already called `on('data')`) + * + * @param end - Offset in bytes to stop reading at + */ + end(end = 0): this { + throwIfInitialized(this); + this.s.options.end = end; + return this; + } + + /** + * Marks this stream as aborted (will never push another `data` event) + * and kills the underlying cursor. Will emit the 'end' event, and then + * the 'close' event once the cursor is successfully killed. + */ + async abort(): Promise { + this.push(null); + this.destroy(); + await this.s.cursor?.close(); + } +} + +function throwIfInitialized(stream: GridFSBucketReadStream): void { + if (stream.s.init) { + throw new MongoGridFSStreamError('Options cannot be changed after the stream is initialized'); + } +} + +function doRead(stream: GridFSBucketReadStream): void { + if (stream.destroyed) return; + if (!stream.s.cursor) return; + if (!stream.s.file) return; + + const handleReadResult = (doc: Document | null) => { + if (stream.destroyed) return; + + if (!doc) { + stream.push(null); + // eslint-disable-next-line github/no-then + stream.s.cursor?.close().then(undefined, error => stream.destroy(error)); + return; + } + + if (!stream.s.file) return; + + const bytesRemaining = stream.s.file.length - stream.s.bytesRead; + const expectedN = stream.s.expected++; + const expectedLength = Math.min(stream.s.file.chunkSize, bytesRemaining); + if (doc.n > expectedN) { + return stream.destroy( + new MongoGridFSChunkError( + `ChunkIsMissing: Got unexpected n: ${doc.n}, expected: ${expectedN}` + ) + ); + } + + if (doc.n < expectedN) { + return stream.destroy( + new MongoGridFSChunkError(`ExtraChunk: Got unexpected n: ${doc.n}, expected: ${expectedN}`) + ); + } + + let buf = Buffer.isBuffer(doc.data) ? doc.data : doc.data.buffer; + + if (buf.byteLength !== expectedLength) { + if (bytesRemaining <= 0) { + return stream.destroy( + new MongoGridFSChunkError( + `ExtraChunk: Got unexpected n: ${doc.n}, expected file length ${stream.s.file.length} bytes but already read ${stream.s.bytesRead} bytes` + ) + ); + } + + return stream.destroy( + new MongoGridFSChunkError( + `ChunkIsWrongSize: Got unexpected length: ${buf.byteLength}, expected: ${expectedLength}` + ) + ); + } + + stream.s.bytesRead += buf.byteLength; + + if (buf.byteLength === 0) { + return stream.push(null); + } + + let sliceStart = null; + let sliceEnd = null; + + if (stream.s.bytesToSkip != null) { + sliceStart = stream.s.bytesToSkip; + stream.s.bytesToSkip = 0; + } + + const atEndOfStream = expectedN === stream.s.expectedEnd - 1; + const bytesLeftToRead = stream.s.options.end - stream.s.bytesToSkip; + if (atEndOfStream && stream.s.bytesToTrim != null) { + sliceEnd = stream.s.file.chunkSize - stream.s.bytesToTrim; + } else if (stream.s.options.end && bytesLeftToRead < doc.data.byteLength) { + sliceEnd = bytesLeftToRead; + } + + if (sliceStart != null || sliceEnd != null) { + buf = buf.slice(sliceStart || 0, sliceEnd || buf.byteLength); + } + + stream.push(buf); + return; + }; + + // eslint-disable-next-line github/no-then + stream.s.cursor.next().then(handleReadResult, error => { + if (stream.destroyed) return; + stream.destroy(error); + }); +} + +function init(stream: GridFSBucketReadStream): void { + const findOneOptions: FindOptions = {}; + if (stream.s.readPreference) { + findOneOptions.readPreference = stream.s.readPreference; + } + if (stream.s.options && stream.s.options.sort) { + findOneOptions.sort = stream.s.options.sort; + } + if (stream.s.options && stream.s.options.skip) { + findOneOptions.skip = stream.s.options.skip; + } + + const handleReadResult = (doc: Document | null) => { + if (stream.destroyed) return; + + if (!doc) { + const identifier = stream.s.filter._id + ? stream.s.filter._id.toString() + : stream.s.filter.filename; + const errmsg = `FileNotFound: file ${identifier} was not found`; + // TODO(NODE-3483) + const err = new MongoRuntimeError(errmsg); + err.code = 'ENOENT'; // TODO: NODE-3338 set property as part of constructor + return stream.destroy(err); + } + + // If document is empty, kill the stream immediately and don't + // execute any reads + if (doc.length <= 0) { + stream.push(null); + return; + } + + if (stream.destroyed) { + // If user destroys the stream before we have a cursor, wait + // until the query is done to say we're 'closed' because we can't + // cancel a query. + stream.destroy(); + return; + } + + try { + stream.s.bytesToSkip = handleStartOption(stream, doc, stream.s.options); + } catch (error) { + return stream.destroy(error); + } + + const filter: Document = { files_id: doc._id }; + + // Currently (MongoDB 3.4.4) skip function does not support the index, + // it needs to retrieve all the documents first and then skip them. (CS-25811) + // As work around we use $gte on the "n" field. + if (stream.s.options && stream.s.options.start != null) { + const skip = Math.floor(stream.s.options.start / doc.chunkSize); + if (skip > 0) { + filter['n'] = { $gte: skip }; + } + } + stream.s.cursor = stream.s.chunks.find(filter).sort({ n: 1 }); + + if (stream.s.readPreference) { + stream.s.cursor.withReadPreference(stream.s.readPreference); + } + + stream.s.expectedEnd = Math.ceil(doc.length / doc.chunkSize); + stream.s.file = doc as GridFSFile; + + try { + stream.s.bytesToTrim = handleEndOption(stream, doc, stream.s.cursor, stream.s.options); + } catch (error) { + return stream.destroy(error); + } + + stream.emit(GridFSBucketReadStream.FILE, doc); + return; + }; + + // eslint-disable-next-line github/no-then + stream.s.files.findOne(stream.s.filter, findOneOptions).then(handleReadResult, error => { + if (stream.destroyed) return; + stream.destroy(error); + }); +} + +function waitForFile(stream: GridFSBucketReadStream, callback: Callback): void { + if (stream.s.file) { + return callback(); + } + + if (!stream.s.init) { + init(stream); + stream.s.init = true; + } + + stream.once('file', () => { + callback(); + }); +} + +function handleStartOption( + stream: GridFSBucketReadStream, + doc: Document, + options: GridFSBucketReadStreamOptions +): number { + if (options && options.start != null) { + if (options.start > doc.length) { + throw new MongoInvalidArgumentError( + `Stream start (${options.start}) must not be more than the length of the file (${doc.length})` + ); + } + if (options.start < 0) { + throw new MongoInvalidArgumentError(`Stream start (${options.start}) must not be negative`); + } + if (options.end != null && options.end < options.start) { + throw new MongoInvalidArgumentError( + `Stream start (${options.start}) must not be greater than stream end (${options.end})` + ); + } + + stream.s.bytesRead = Math.floor(options.start / doc.chunkSize) * doc.chunkSize; + stream.s.expected = Math.floor(options.start / doc.chunkSize); + + return options.start - stream.s.bytesRead; + } + throw new MongoInvalidArgumentError('Start option must be defined'); +} + +function handleEndOption( + stream: GridFSBucketReadStream, + doc: Document, + cursor: FindCursor, + options: GridFSBucketReadStreamOptions +) { + if (options && options.end != null) { + if (options.end > doc.length) { + throw new MongoInvalidArgumentError( + `Stream end (${options.end}) must not be more than the length of the file (${doc.length})` + ); + } + if (options.start == null || options.start < 0) { + throw new MongoInvalidArgumentError(`Stream end (${options.end}) must not be negative`); + } + + const start = options.start != null ? Math.floor(options.start / doc.chunkSize) : 0; + + cursor.limit(Math.ceil(options.end / doc.chunkSize) - start); + + stream.s.expectedEnd = Math.ceil(options.end / doc.chunkSize); + + return Math.ceil(options.end / doc.chunkSize) * doc.chunkSize - options.end; + } + throw new MongoInvalidArgumentError('End option must be defined'); +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/index.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/index.ts new file mode 100644 index 000000000..51c32b7a0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/index.ts @@ -0,0 +1,215 @@ +import type { ObjectId } from '../bson'; +import type { Collection } from '../collection'; +import type { FindCursor } from '../cursor/find_cursor'; +import type { Db } from '../db'; +import { MongoRuntimeError } from '../error'; +import { type Filter, TypedEventEmitter } from '../mongo_types'; +import type { ReadPreference } from '../read_preference'; +import type { Sort } from '../sort'; +import { WriteConcern, type WriteConcernOptions } from '../write_concern'; +import type { FindOptions } from './../operations/find'; +import { + GridFSBucketReadStream, + type GridFSBucketReadStreamOptions, + type GridFSBucketReadStreamOptionsWithRevision, + type GridFSFile +} from './download'; +import { + GridFSBucketWriteStream, + type GridFSBucketWriteStreamOptions, + type GridFSChunk +} from './upload'; + +const DEFAULT_GRIDFS_BUCKET_OPTIONS: { + bucketName: string; + chunkSizeBytes: number; +} = { + bucketName: 'fs', + chunkSizeBytes: 255 * 1024 +}; + +/** @public */ +export interface GridFSBucketOptions extends WriteConcernOptions { + /** The 'files' and 'chunks' collections will be prefixed with the bucket name followed by a dot. */ + bucketName?: string; + /** Number of bytes stored in each chunk. Defaults to 255KB */ + chunkSizeBytes?: number; + /** Read preference to be passed to read operations */ + readPreference?: ReadPreference; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** @internal */ +export interface GridFSBucketPrivate { + db: Db; + options: { + bucketName: string; + chunkSizeBytes: number; + readPreference?: ReadPreference; + writeConcern: WriteConcern | undefined; + }; + _chunksCollection: Collection; + _filesCollection: Collection; + checkedIndexes: boolean; + calledOpenUploadStream: boolean; +} + +/** @public */ +export type GridFSBucketEvents = { + index(): void; +}; + +/** + * Constructor for a streaming GridFS interface + * @public + */ +export class GridFSBucket extends TypedEventEmitter { + /** @internal */ + s: GridFSBucketPrivate; + + /** + * When the first call to openUploadStream is made, the upload stream will + * check to see if it needs to create the proper indexes on the chunks and + * files collections. This event is fired either when 1) it determines that + * no index creation is necessary, 2) when it successfully creates the + * necessary indexes. + * @event + */ + static readonly INDEX = 'index' as const; + + constructor(db: Db, options?: GridFSBucketOptions) { + super(); + this.setMaxListeners(0); + const privateOptions = { + ...DEFAULT_GRIDFS_BUCKET_OPTIONS, + ...options, + writeConcern: WriteConcern.fromOptions(options) + }; + this.s = { + db, + options: privateOptions, + _chunksCollection: db.collection(privateOptions.bucketName + '.chunks'), + _filesCollection: db.collection(privateOptions.bucketName + '.files'), + checkedIndexes: false, + calledOpenUploadStream: false + }; + } + + /** + * Returns a writable stream (GridFSBucketWriteStream) for writing + * buffers to GridFS. The stream's 'id' property contains the resulting + * file's id. + * + * @param filename - The value of the 'filename' key in the files doc + * @param options - Optional settings. + */ + + openUploadStream( + filename: string, + options?: GridFSBucketWriteStreamOptions + ): GridFSBucketWriteStream { + return new GridFSBucketWriteStream(this, filename, options); + } + + /** + * Returns a writable stream (GridFSBucketWriteStream) for writing + * buffers to GridFS for a custom file id. The stream's 'id' property contains the resulting + * file's id. + */ + openUploadStreamWithId( + id: ObjectId, + filename: string, + options?: GridFSBucketWriteStreamOptions + ): GridFSBucketWriteStream { + return new GridFSBucketWriteStream(this, filename, { ...options, id }); + } + + /** Returns a readable stream (GridFSBucketReadStream) for streaming file data from GridFS. */ + openDownloadStream( + id: ObjectId, + options?: GridFSBucketReadStreamOptions + ): GridFSBucketReadStream { + return new GridFSBucketReadStream( + this.s._chunksCollection, + this.s._filesCollection, + this.s.options.readPreference, + { _id: id }, + options + ); + } + + /** + * Deletes a file with the given id + * + * @param id - The id of the file doc + */ + async delete(id: ObjectId): Promise { + const { deletedCount } = await this.s._filesCollection.deleteOne({ _id: id }); + + // Delete orphaned chunks before returning FileNotFound + await this.s._chunksCollection.deleteMany({ files_id: id }); + + if (deletedCount === 0) { + // TODO(NODE-3483): Replace with more appropriate error + // Consider creating new error MongoGridFSFileNotFoundError + throw new MongoRuntimeError(`File not found for id ${id}`); + } + } + + /** Convenience wrapper around find on the files collection */ + find(filter: Filter = {}, options: FindOptions = {}): FindCursor { + return this.s._filesCollection.find(filter, options); + } + + /** + * Returns a readable stream (GridFSBucketReadStream) for streaming the + * file with the given name from GridFS. If there are multiple files with + * the same name, this will stream the most recent file with the given name + * (as determined by the `uploadDate` field). You can set the `revision` + * option to change this behavior. + */ + openDownloadStreamByName( + filename: string, + options?: GridFSBucketReadStreamOptionsWithRevision + ): GridFSBucketReadStream { + let sort: Sort = { uploadDate: -1 }; + let skip = undefined; + if (options && options.revision != null) { + if (options.revision >= 0) { + sort = { uploadDate: 1 }; + skip = options.revision; + } else { + skip = -options.revision - 1; + } + } + return new GridFSBucketReadStream( + this.s._chunksCollection, + this.s._filesCollection, + this.s.options.readPreference, + { filename }, + { ...options, sort, skip } + ); + } + + /** + * Renames the file with the given _id to the given string + * + * @param id - the id of the file to rename + * @param filename - new name for the file + */ + async rename(id: ObjectId, filename: string): Promise { + const filter = { _id: id }; + const update = { $set: { filename } }; + const { matchedCount } = await this.s._filesCollection.updateOne(filter, update); + if (matchedCount === 0) { + throw new MongoRuntimeError(`File with id ${id} not found`); + } + } + + /** Removes this bucket's files collection, followed by its chunks collection. */ + async drop(): Promise { + await this.s._filesCollection.drop(); + await this.s._chunksCollection.drop(); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/upload.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/upload.ts new file mode 100644 index 000000000..12440f267 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/gridfs/upload.ts @@ -0,0 +1,456 @@ +import { Writable } from 'stream'; + +import type { Document } from '../bson'; +import { ObjectId } from '../bson'; +import type { Collection } from '../collection'; +import { MongoAPIError, MONGODB_ERROR_CODES, MongoError } from '../error'; +import { type Callback, squashError } from '../utils'; +import type { WriteConcernOptions } from '../write_concern'; +import { WriteConcern } from './../write_concern'; +import type { GridFSFile } from './download'; +import type { GridFSBucket } from './index'; + +/** @public */ +export interface GridFSChunk { + _id: ObjectId; + files_id: ObjectId; + n: number; + data: Buffer | Uint8Array; +} + +/** @public */ +export interface GridFSBucketWriteStreamOptions extends WriteConcernOptions { + /** Overwrite this bucket's chunkSizeBytes for this file */ + chunkSizeBytes?: number; + /** Custom file id for the GridFS file. */ + id?: ObjectId; + /** Object to store in the file document's `metadata` field */ + metadata?: Document; + /** + * String to store in the file document's `contentType` field. + * @deprecated Will be removed in the next major version. Add a contentType field to the metadata document instead. + */ + contentType?: string; + /** + * Array of strings to store in the file document's `aliases` field. + * @deprecated Will be removed in the next major version. Add an aliases field to the metadata document instead. + */ + aliases?: string[]; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** + * A writable stream that enables you to write buffers to GridFS. + * + * Do not instantiate this class directly. Use `openUploadStream()` instead. + * @public + */ +export class GridFSBucketWriteStream extends Writable { + bucket: GridFSBucket; + /** A Collection instance where the file's chunks are stored */ + chunks: Collection; + /** A Collection instance where the file's GridFSFile document is stored */ + files: Collection; + /** The name of the file */ + filename: string; + /** Options controlling the metadata inserted along with the file */ + options: GridFSBucketWriteStreamOptions; + /** Indicates the stream is finished uploading */ + done: boolean; + /** The ObjectId used for the `_id` field on the GridFSFile document */ + id: ObjectId; + /** The number of bytes that each chunk will be limited to */ + chunkSizeBytes: number; + /** Space used to store a chunk currently being inserted */ + bufToStore: Buffer; + /** Accumulates the number of bytes inserted as the stream uploads chunks */ + length: number; + /** Accumulates the number of chunks inserted as the stream uploads file contents */ + n: number; + /** Tracks the current offset into the buffered bytes being uploaded */ + pos: number; + /** Contains a number of properties indicating the current state of the stream */ + state: { + /** If set the stream has ended */ + streamEnd: boolean; + /** Indicates the number of chunks that still need to be inserted to exhaust the current buffered data */ + outstandingRequests: number; + /** If set an error occurred during insertion */ + errored: boolean; + /** If set the stream was intentionally aborted */ + aborted: boolean; + }; + /** The write concern setting to be used with every insert operation */ + writeConcern?: WriteConcern; + /** + * The document containing information about the inserted file. + * This property is defined _after_ the finish event has been emitted. + * It will remain `null` if an error occurs. + * + * @example + * ```ts + * fs.createReadStream('file.txt') + * .pipe(bucket.openUploadStream('file.txt')) + * .on('finish', function () { + * console.log(this.gridFSFile) + * }) + * ``` + */ + gridFSFile: GridFSFile | null = null; + + /** + * @param bucket - Handle for this stream's corresponding bucket + * @param filename - The value of the 'filename' key in the files doc + * @param options - Optional settings. + * @internal + */ + constructor(bucket: GridFSBucket, filename: string, options?: GridFSBucketWriteStreamOptions) { + super(); + + options = options ?? {}; + this.bucket = bucket; + this.chunks = bucket.s._chunksCollection; + this.filename = filename; + this.files = bucket.s._filesCollection; + this.options = options; + this.writeConcern = WriteConcern.fromOptions(options) || bucket.s.options.writeConcern; + // Signals the write is all done + this.done = false; + + this.id = options.id ? options.id : new ObjectId(); + // properly inherit the default chunksize from parent + this.chunkSizeBytes = options.chunkSizeBytes || this.bucket.s.options.chunkSizeBytes; + this.bufToStore = Buffer.alloc(this.chunkSizeBytes); + this.length = 0; + this.n = 0; + this.pos = 0; + this.state = { + streamEnd: false, + outstandingRequests: 0, + errored: false, + aborted: false + }; + + if (!this.bucket.s.calledOpenUploadStream) { + this.bucket.s.calledOpenUploadStream = true; + + // eslint-disable-next-line github/no-then + checkIndexes(this).then(() => { + this.bucket.s.checkedIndexes = true; + this.bucket.emit('index'); + }, squashError); + } + } + + /** + * @internal + * + * The stream is considered constructed when the indexes are done being created + */ + override _construct(callback: (error?: Error | null) => void): void { + if (this.bucket.s.checkedIndexes) { + return process.nextTick(callback); + } + this.bucket.once('index', callback); + } + + /** + * @internal + * Write a buffer to the stream. + * + * @param chunk - Buffer to write + * @param encoding - Optional encoding for the buffer + * @param callback - Function to call when the chunk was added to the buffer, or if the entire chunk was persisted to MongoDB if this chunk caused a flush. + */ + override _write( + chunk: Buffer | string, + encoding: BufferEncoding, + callback: Callback + ): void { + doWrite(this, chunk, encoding, callback); + } + + /** @internal */ + override _final(callback: (error?: Error | null) => void): void { + if (this.state.streamEnd) { + return process.nextTick(callback); + } + this.state.streamEnd = true; + writeRemnant(this, callback); + } + + /** + * Places this write stream into an aborted state (all future writes fail) + * and deletes all chunks that have already been written. + */ + async abort(): Promise { + if (this.state.streamEnd) { + // TODO(NODE-3485): Replace with MongoGridFSStreamClosed + throw new MongoAPIError('Cannot abort a stream that has already completed'); + } + + if (this.state.aborted) { + // TODO(NODE-3485): Replace with MongoGridFSStreamClosed + throw new MongoAPIError('Cannot call abort() on a stream twice'); + } + + this.state.aborted = true; + await this.chunks.deleteMany({ files_id: this.id }); + } +} + +function handleError(stream: GridFSBucketWriteStream, error: Error, callback: Callback): void { + if (stream.state.errored) { + process.nextTick(callback); + return; + } + stream.state.errored = true; + process.nextTick(callback, error); +} + +function createChunkDoc(filesId: ObjectId, n: number, data: Buffer): GridFSChunk { + return { + _id: new ObjectId(), + files_id: filesId, + n, + data + }; +} + +async function checkChunksIndex(stream: GridFSBucketWriteStream): Promise { + const index = { files_id: 1, n: 1 }; + + let indexes; + try { + indexes = await stream.chunks.listIndexes().toArray(); + } catch (error) { + if (error instanceof MongoError && error.code === MONGODB_ERROR_CODES.NamespaceNotFound) { + indexes = []; + } else { + throw error; + } + } + + const hasChunksIndex = !!indexes.find(index => { + const keys = Object.keys(index.key); + if (keys.length === 2 && index.key.files_id === 1 && index.key.n === 1) { + return true; + } + return false; + }); + + if (!hasChunksIndex) { + await stream.chunks.createIndex(index, { + ...stream.writeConcern, + background: true, + unique: true + }); + } +} + +function checkDone(stream: GridFSBucketWriteStream, callback: Callback): void { + if (stream.done) { + return process.nextTick(callback); + } + + if (stream.state.streamEnd && stream.state.outstandingRequests === 0 && !stream.state.errored) { + // Set done so we do not trigger duplicate createFilesDoc + stream.done = true; + // Create a new files doc + const gridFSFile = createFilesDoc( + stream.id, + stream.length, + stream.chunkSizeBytes, + stream.filename, + stream.options.contentType, + stream.options.aliases, + stream.options.metadata + ); + + if (isAborted(stream, callback)) { + return; + } + + // eslint-disable-next-line github/no-then + stream.files.insertOne(gridFSFile, { writeConcern: stream.writeConcern }).then( + () => { + stream.gridFSFile = gridFSFile; + callback(); + }, + error => handleError(stream, error, callback) + ); + return; + } + + process.nextTick(callback); +} + +async function checkIndexes(stream: GridFSBucketWriteStream): Promise { + const doc = await stream.files.findOne({}, { projection: { _id: 1 } }); + if (doc != null) { + // If at least one document exists assume the collection has the required index + return; + } + + const index = { filename: 1, uploadDate: 1 }; + + let indexes; + try { + indexes = await stream.files.listIndexes().toArray(); + } catch (error) { + if (error instanceof MongoError && error.code === MONGODB_ERROR_CODES.NamespaceNotFound) { + indexes = []; + } else { + throw error; + } + } + + const hasFileIndex = !!indexes.find(index => { + const keys = Object.keys(index.key); + if (keys.length === 2 && index.key.filename === 1 && index.key.uploadDate === 1) { + return true; + } + return false; + }); + + if (!hasFileIndex) { + await stream.files.createIndex(index, { background: false }); + } + + await checkChunksIndex(stream); +} + +function createFilesDoc( + _id: ObjectId, + length: number, + chunkSize: number, + filename: string, + contentType?: string, + aliases?: string[], + metadata?: Document +): GridFSFile { + const ret: GridFSFile = { + _id, + length, + chunkSize, + uploadDate: new Date(), + filename + }; + + if (contentType) { + ret.contentType = contentType; + } + + if (aliases) { + ret.aliases = aliases; + } + + if (metadata) { + ret.metadata = metadata; + } + + return ret; +} + +function doWrite( + stream: GridFSBucketWriteStream, + chunk: Buffer | string, + encoding: BufferEncoding, + callback: Callback +): void { + if (isAborted(stream, callback)) { + return; + } + + const inputBuf = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk, encoding); + + stream.length += inputBuf.length; + + // Input is small enough to fit in our buffer + if (stream.pos + inputBuf.length < stream.chunkSizeBytes) { + inputBuf.copy(stream.bufToStore, stream.pos); + stream.pos += inputBuf.length; + process.nextTick(callback); + return; + } + + // Otherwise, buffer is too big for current chunk, so we need to flush + // to MongoDB. + let inputBufRemaining = inputBuf.length; + let spaceRemaining: number = stream.chunkSizeBytes - stream.pos; + let numToCopy = Math.min(spaceRemaining, inputBuf.length); + let outstandingRequests = 0; + while (inputBufRemaining > 0) { + const inputBufPos = inputBuf.length - inputBufRemaining; + inputBuf.copy(stream.bufToStore, stream.pos, inputBufPos, inputBufPos + numToCopy); + stream.pos += numToCopy; + spaceRemaining -= numToCopy; + let doc: GridFSChunk; + if (spaceRemaining === 0) { + doc = createChunkDoc(stream.id, stream.n, Buffer.from(stream.bufToStore)); + ++stream.state.outstandingRequests; + ++outstandingRequests; + + if (isAborted(stream, callback)) { + return; + } + + // eslint-disable-next-line github/no-then + stream.chunks.insertOne(doc, { writeConcern: stream.writeConcern }).then( + () => { + --stream.state.outstandingRequests; + --outstandingRequests; + + if (!outstandingRequests) { + checkDone(stream, callback); + } + }, + error => handleError(stream, error, callback) + ); + + spaceRemaining = stream.chunkSizeBytes; + stream.pos = 0; + ++stream.n; + } + inputBufRemaining -= numToCopy; + numToCopy = Math.min(spaceRemaining, inputBufRemaining); + } +} + +function writeRemnant(stream: GridFSBucketWriteStream, callback: Callback): void { + // Buffer is empty, so don't bother to insert + if (stream.pos === 0) { + return checkDone(stream, callback); + } + + ++stream.state.outstandingRequests; + + // Create a new buffer to make sure the buffer isn't bigger than it needs + // to be. + const remnant = Buffer.alloc(stream.pos); + stream.bufToStore.copy(remnant, 0, 0, stream.pos); + const doc = createChunkDoc(stream.id, stream.n, remnant); + + // If the stream was aborted, do not write remnant + if (isAborted(stream, callback)) { + return; + } + + // eslint-disable-next-line github/no-then + stream.chunks.insertOne(doc, { writeConcern: stream.writeConcern }).then( + () => { + --stream.state.outstandingRequests; + checkDone(stream, callback); + }, + error => handleError(stream, error, callback) + ); +} + +function isAborted(stream: GridFSBucketWriteStream, callback: Callback): boolean { + if (stream.state.aborted) { + process.nextTick(callback, new MongoAPIError('Stream has been aborted')); + return true; + } + return false; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/index.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/index.ts new file mode 100644 index 000000000..812d045ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/index.ts @@ -0,0 +1,565 @@ +import { Admin } from './admin'; +import { OrderedBulkOperation } from './bulk/ordered'; +import { UnorderedBulkOperation } from './bulk/unordered'; +import { ChangeStream } from './change_stream'; +import { Collection } from './collection'; +import { AbstractCursor } from './cursor/abstract_cursor'; +import { AggregationCursor } from './cursor/aggregation_cursor'; +import { FindCursor } from './cursor/find_cursor'; +import { ListCollectionsCursor } from './cursor/list_collections_cursor'; +import { ListIndexesCursor } from './cursor/list_indexes_cursor'; +import type { RunCommandCursor } from './cursor/run_command_cursor'; +import { Db } from './db'; +import { GridFSBucket } from './gridfs'; +import { GridFSBucketReadStream } from './gridfs/download'; +import { GridFSBucketWriteStream } from './gridfs/upload'; +import { MongoClient } from './mongo_client'; +import { CancellationToken } from './mongo_types'; +import { ClientSession } from './sessions'; + +/** @public */ +export { BSON } from './bson'; +export { + Binary, + BSONRegExp, + BSONSymbol, + BSONType, + Code, + DBRef, + Decimal128, + Double, + Int32, + Long, + MaxKey, + MinKey, + ObjectId, + Timestamp, + UUID +} from './bson'; +export { AnyBulkWriteOperation, BulkWriteOptions, MongoBulkWriteError } from './bulk/common'; +export { ClientEncryption } from './client-side-encryption/client_encryption'; +export { ChangeStreamCursor } from './cursor/change_stream_cursor'; +export { + MongoAPIError, + MongoAWSError, + MongoAzureError, + MongoBatchReExecutionError, + MongoChangeStreamError, + MongoCompatibilityError, + MongoCursorExhaustedError, + MongoCursorInUseError, + MongoDecompressionError, + MongoDriverError, + MongoError, + MongoExpiredSessionError, + MongoGridFSChunkError, + MongoGridFSStreamError, + MongoInvalidArgumentError, + MongoKerberosError, + MongoMissingCredentialsError, + MongoMissingDependencyError, + MongoNetworkError, + MongoNetworkTimeoutError, + MongoNotConnectedError, + MongoParseError, + MongoRuntimeError, + MongoServerClosedError, + MongoServerError, + MongoServerSelectionError, + MongoSystemError, + MongoTailableCursorError, + MongoTopologyClosedError, + MongoTransactionError, + MongoUnexpectedServerResponseError, + MongoWriteConcernError +} from './error'; +export { + AbstractCursor, + // Actual driver classes exported + Admin, + AggregationCursor, + CancellationToken, + ChangeStream, + ClientSession, + Collection, + Db, + FindCursor, + GridFSBucket, + GridFSBucketReadStream, + GridFSBucketWriteStream, + ListCollectionsCursor, + ListIndexesCursor, + MongoClient, + OrderedBulkOperation, + RunCommandCursor, + UnorderedBulkOperation +}; + +// enums +export { BatchType } from './bulk/common'; +export { AutoEncryptionLoggerLevel } from './client-side-encryption/auto_encrypter'; +export { GSSAPICanonicalizationValue } from './cmap/auth/gssapi'; +export { AuthMechanism } from './cmap/auth/providers'; +export { Compressor } from './cmap/wire_protocol/compression'; +export { CURSOR_FLAGS } from './cursor/abstract_cursor'; +export { MongoErrorLabel } from './error'; +export { ExplainVerbosity } from './explain'; +export { ServerApiVersion } from './mongo_client'; +export { ReturnDocument } from './operations/find_and_modify'; +export { ProfilingLevel } from './operations/set_profiling_level'; +export { ReadConcernLevel } from './read_concern'; +export { ReadPreferenceMode } from './read_preference'; +export { ServerType, TopologyType } from './sdam/common'; + +// Helper classes +export { ReadConcern } from './read_concern'; +export { ReadPreference } from './read_preference'; +export { WriteConcern } from './write_concern'; + +// events +export { + CommandFailedEvent, + CommandStartedEvent, + CommandSucceededEvent +} from './cmap/command_monitoring_events'; +export { + ConnectionCheckedInEvent, + ConnectionCheckedOutEvent, + ConnectionCheckOutFailedEvent, + ConnectionCheckOutStartedEvent, + ConnectionClosedEvent, + ConnectionCreatedEvent, + ConnectionPoolClearedEvent, + ConnectionPoolClosedEvent, + ConnectionPoolCreatedEvent, + ConnectionPoolMonitoringEvent, + ConnectionPoolReadyEvent, + ConnectionReadyEvent +} from './cmap/connection_pool_events'; +export { + ServerClosedEvent, + ServerDescriptionChangedEvent, + ServerHeartbeatFailedEvent, + ServerHeartbeatStartedEvent, + ServerHeartbeatSucceededEvent, + ServerOpeningEvent, + TopologyClosedEvent, + TopologyDescriptionChangedEvent, + TopologyOpeningEvent +} from './sdam/events'; +export { + ServerSelectionEvent, + ServerSelectionFailedEvent, + ServerSelectionStartedEvent, + ServerSelectionSucceededEvent, + WaitingForSuitableServerEvent +} from './sdam/server_selection_events'; +export { SrvPollingEvent } from './sdam/srv_polling'; + +// type only exports below, these are removed from emitted JS +export type { AdminPrivate } from './admin'; +export type { BSONSerializeOptions, Document } from './bson'; +export type { deserialize, serialize } from './bson'; +export type { + BulkResult, + BulkWriteOperationError, + BulkWriteResult, + DeleteManyModel, + DeleteOneModel, + InsertOneModel, + ReplaceOneModel, + UpdateManyModel, + UpdateOneModel, + WriteConcernError, + WriteError +} from './bulk/common'; +export type { + Batch, + BulkOperationBase, + BulkOperationPrivate, + FindOperators, + WriteConcernErrorData +} from './bulk/common'; +export type { + ChangeStreamCollModDocument, + ChangeStreamCreateDocument, + ChangeStreamCreateIndexDocument, + ChangeStreamDeleteDocument, + ChangeStreamDocument, + ChangeStreamDocumentCollectionUUID, + ChangeStreamDocumentCommon, + ChangeStreamDocumentKey, + ChangeStreamDocumentOperationDescription, + ChangeStreamDropDatabaseDocument, + ChangeStreamDropDocument, + ChangeStreamDropIndexDocument, + ChangeStreamEvents, + ChangeStreamInsertDocument, + ChangeStreamInvalidateDocument, + ChangeStreamNameSpace, + ChangeStreamOptions, + ChangeStreamRefineCollectionShardKeyDocument, + ChangeStreamRenameDocument, + ChangeStreamReplaceDocument, + ChangeStreamReshardCollectionDocument, + ChangeStreamShardCollectionDocument, + ChangeStreamSplitEvent, + ChangeStreamUpdateDocument, + OperationTime, + ResumeOptions, + ResumeToken, + UpdateDescription +} from './change_stream'; +export type { AutoEncrypter } from './client-side-encryption/auto_encrypter'; +export type { AutoEncryptionOptions } from './client-side-encryption/auto_encrypter'; +export type { AutoEncryptionExtraOptions } from './client-side-encryption/auto_encrypter'; +export type { + AWSEncryptionKeyOptions, + AzureEncryptionKeyOptions, + ClientEncryptionCreateDataKeyProviderOptions, + ClientEncryptionEncryptOptions, + ClientEncryptionOptions, + ClientEncryptionRewrapManyDataKeyProviderOptions, + ClientEncryptionRewrapManyDataKeyResult, + DataKey, + GCPEncryptionKeyOptions, + RangeOptions +} from './client-side-encryption/client_encryption'; +export { + MongoCryptAzureKMSRequestError, + MongoCryptCreateDataKeyError, + MongoCryptCreateEncryptedCollectionError, + MongoCryptError, + MongoCryptInvalidArgumentError, + MongoCryptKMSRequestNetworkTimeoutError +} from './client-side-encryption/errors'; +export type { MongocryptdManager } from './client-side-encryption/mongocryptd_manager'; +export type { + ClientEncryptionDataKeyProvider, + KMSProviders +} from './client-side-encryption/providers/index'; +export type { + ClientEncryptionTlsOptions, + CSFLEKMSTlsOptions, + StateMachineExecutable +} from './client-side-encryption/state_machine'; +export type { AuthContext, AuthProvider } from './cmap/auth/auth_provider'; +export type { + AuthMechanismProperties, + MongoCredentials, + MongoCredentialsOptions +} from './cmap/auth/mongo_credentials'; +export type { + IdPServerInfo, + IdPServerResponse, + OIDCCallbackContext, + OIDCRefreshFunction, + OIDCRequestFunction +} from './cmap/auth/mongodb_oidc'; +export type { + MessageHeader, + OpCompressedRequest, + OpMsgOptions, + OpMsgRequest, + OpMsgResponse, + OpQueryOptions, + OpQueryRequest, + OpReply, + WriteProtocolMessageType +} from './cmap/commands'; +export type { HandshakeDocument } from './cmap/connect'; +export type { LEGAL_TCP_SOCKET_OPTIONS, LEGAL_TLS_SOCKET_OPTIONS, Stream } from './cmap/connect'; +export type { + CommandOptions, + Connection, + ConnectionEvents, + ConnectionOptions, + ProxyOptions +} from './cmap/connection'; +export type { + CloseOptions, + ConnectionPool, + ConnectionPoolEvents, + ConnectionPoolOptions, + PoolState, + WaitQueueMember, + WithConnectionCallback +} from './cmap/connection_pool'; +export type { ClientMetadata, ClientMetadataOptions } from './cmap/handshake/client_metadata'; +export type { ConnectionPoolMetrics } from './cmap/metrics'; +export type { StreamDescription, StreamDescriptionOptions } from './cmap/stream_description'; +export type { CompressorName } from './cmap/wire_protocol/compression'; +export type { JSTypeOf, OnDemandDocument } from './cmap/wire_protocol/on_demand/document'; +export type { + CursorResponse, + MongoDBResponse, + MongoDBResponseConstructor +} from './cmap/wire_protocol/responses'; +export type { CollectionOptions, CollectionPrivate, ModifyResult } from './collection'; +export type { + COMMAND_FAILED, + COMMAND_STARTED, + COMMAND_SUCCEEDED, + CONNECTION_CHECK_OUT_FAILED, + CONNECTION_CHECK_OUT_STARTED, + CONNECTION_CHECKED_IN, + CONNECTION_CHECKED_OUT, + CONNECTION_CLOSED, + CONNECTION_CREATED, + CONNECTION_POOL_CLEARED, + CONNECTION_POOL_CLOSED, + CONNECTION_POOL_CREATED, + CONNECTION_POOL_READY, + CONNECTION_READY, + MONGO_CLIENT_EVENTS, + SERVER_CLOSED, + SERVER_DESCRIPTION_CHANGED, + SERVER_HEARTBEAT_FAILED, + SERVER_HEARTBEAT_STARTED, + SERVER_HEARTBEAT_SUCCEEDED, + SERVER_OPENING, + SERVER_SELECTION_FAILED, + SERVER_SELECTION_STARTED, + SERVER_SELECTION_SUCCEEDED, + TOPOLOGY_CLOSED, + TOPOLOGY_DESCRIPTION_CHANGED, + TOPOLOGY_OPENING, + WAITING_FOR_SUITABLE_SERVER +} from './constants'; +export type { + AbstractCursorEvents, + AbstractCursorOptions, + CursorFlag, + CursorStreamOptions +} from './cursor/abstract_cursor'; +export type { InternalAbstractCursorOptions } from './cursor/abstract_cursor'; +export type { AggregationCursorOptions } from './cursor/aggregation_cursor'; +export type { + ChangeStreamAggregateRawResult, + ChangeStreamCursorOptions +} from './cursor/change_stream_cursor'; +export type { + ListSearchIndexesCursor, + ListSearchIndexesOptions +} from './cursor/list_search_indexes_cursor'; +export type { RunCursorCommandOptions } from './cursor/run_command_cursor'; +export type { DbOptions, DbPrivate } from './db'; +export type { Encrypter, EncrypterOptions } from './encrypter'; +export type { AnyError, ErrorDescription, MongoNetworkErrorOptions } from './error'; +export type { Explain, ExplainOptions, ExplainVerbosityLike } from './explain'; +export type { + GridFSBucketReadStreamOptions, + GridFSBucketReadStreamOptionsWithRevision, + GridFSBucketReadStreamPrivate, + GridFSFile +} from './gridfs/download'; +export type { GridFSBucketEvents, GridFSBucketOptions, GridFSBucketPrivate } from './gridfs/index'; +export type { GridFSBucketWriteStreamOptions, GridFSChunk } from './gridfs/upload'; +export type { + Auth, + DriverInfo, + MongoClientEvents, + MongoClientOptions, + MongoClientPrivate, + MongoOptions, + PkFactory, + ServerApi, + SupportedNodeConnectionOptions, + SupportedSocketOptions, + SupportedTLSConnectionOptions, + SupportedTLSSocketOptions, + WithSessionCallback +} from './mongo_client'; +export { MongoClientAuthProviders } from './mongo_client_auth_providers'; +export type { + Log, + LogComponentSeveritiesClientOptions, + LogConvertible, + Loggable, + LoggableCommandFailedEvent, + LoggableCommandSucceededEvent, + LoggableEvent, + LoggableServerHeartbeatFailedEvent, + LoggableServerHeartbeatStartedEvent, + LoggableServerHeartbeatSucceededEvent, + MongoDBLogWritable, + MongoLoggableComponent, + MongoLogger, + MongoLoggerEnvOptions, + MongoLoggerMongoClientOptions, + MongoLoggerOptions, + SeverityLevel +} from './mongo_logger'; +export type { + CommonEvents, + EventsDescription, + GenericListener, + TypedEventEmitter +} from './mongo_types'; +export type { + AcceptedFields, + AddToSetOperators, + AlternativeType, + ArrayElement, + ArrayOperator, + BitwiseFilter, + BSONTypeAlias, + Condition, + EnhancedOmit, + Filter, + FilterOperations, + FilterOperators, + Flatten, + InferIdType, + IntegerType, + IsAny, + Join, + KeysOfAType, + KeysOfOtherType, + MatchKeysAndValues, + NestedPaths, + NestedPathsOfType, + NonObjectIdLikeDocument, + NotAcceptedFields, + NumericType, + OneOrMore, + OnlyFieldsOfType, + OptionalId, + OptionalUnlessRequiredId, + PropertyType, + PullAllOperator, + PullOperator, + PushOperator, + RegExpOrString, + RootFilterOperators, + SchemaMember, + SetFields, + StrictFilter, + StrictMatchKeysAndValues, + StrictUpdateFilter, + UpdateFilter, + WithId, + WithoutId +} from './mongo_types'; +export type { + AggregateOperation, + AggregateOptions, + DB_AGGREGATE_COLLECTION +} from './operations/aggregate'; +export type { + CollationOptions, + CommandOperation, + CommandOperationOptions, + OperationParent +} from './operations/command'; +export type { CountOptions } from './operations/count'; +export type { CountDocumentsOptions } from './operations/count_documents'; +export type { + ClusteredCollectionOptions, + CreateCollectionOptions, + TimeSeriesCollectionOptions +} from './operations/create_collection'; +export type { DeleteOptions, DeleteResult, DeleteStatement } from './operations/delete'; +export type { DistinctOptions } from './operations/distinct'; +export type { DropCollectionOptions, DropDatabaseOptions } from './operations/drop'; +export type { EstimatedDocumentCountOptions } from './operations/estimated_document_count'; +export type { ExecutionResult } from './operations/execute_operation'; +export type { FindOptions } from './operations/find'; +export type { + FindOneAndDeleteOptions, + FindOneAndReplaceOptions, + FindOneAndUpdateOptions +} from './operations/find_and_modify'; +export type { IndexInformationOptions } from './operations/indexes'; +export type { + CreateIndexesOptions, + DropIndexesOptions, + IndexDescription, + IndexDescriptionCompact, + IndexDescriptionInfo, + IndexDirection, + IndexSpecification, + ListIndexesOptions +} from './operations/indexes'; +export type { InsertManyResult, InsertOneOptions, InsertOneResult } from './operations/insert'; +export type { CollectionInfo, ListCollectionsOptions } from './operations/list_collections'; +export type { ListDatabasesOptions, ListDatabasesResult } from './operations/list_databases'; +export type { AbstractOperation, Hint, OperationOptions } from './operations/operation'; +export type { ProfilingLevelOptions } from './operations/profiling_level'; +export type { RemoveUserOptions } from './operations/remove_user'; +export type { RenameOptions } from './operations/rename'; +export type { RunCommandOptions } from './operations/run_command'; +export type { SearchIndexDescription } from './operations/search_indexes/create'; +export type { SetProfilingLevelOptions } from './operations/set_profiling_level'; +export type { DbStatsOptions } from './operations/stats'; +export type { + ReplaceOptions, + UpdateOptions, + UpdateResult, + UpdateStatement +} from './operations/update'; +export type { ValidateCollectionOptions } from './operations/validate_collection'; +export type { ReadConcernLike } from './read_concern'; +export type { + HedgeOptions, + ReadPreferenceFromOptions, + ReadPreferenceLike, + ReadPreferenceLikeOptions, + ReadPreferenceOptions +} from './read_preference'; +export type { ClusterTime, TimerQueue } from './sdam/common'; +export type { + Monitor, + MonitorEvents, + MonitorInterval, + MonitorIntervalOptions, + MonitorOptions, + MonitorPrivate, + RTTPinger, + RTTPingerOptions, + RTTSampler, + ServerMonitoringMode +} from './sdam/monitor'; +export type { Server, ServerEvents, ServerOptions, ServerPrivate } from './sdam/server'; +export type { + ServerDescription, + ServerDescriptionOptions, + TagSet, + TopologyVersion +} from './sdam/server_description'; +export type { ServerSelector } from './sdam/server_selection'; +export type { SrvPoller, SrvPollerEvents, SrvPollerOptions } from './sdam/srv_polling'; +export type { + ConnectOptions, + SelectServerOptions, + ServerCapabilities, + ServerSelectionCallback, + ServerSelectionRequest, + Topology, + TopologyEvents, + TopologyOptions, + TopologyPrivate +} from './sdam/topology'; +export type { TopologyDescription, TopologyDescriptionOptions } from './sdam/topology_description'; +export type { + ClientSessionEvents, + ClientSessionOptions, + EndSessionOptions, + ServerSession, + ServerSessionId, + ServerSessionPool, + WithTransactionCallback +} from './sessions'; +export type { Sort, SortDirection, SortDirectionForCmd, SortForCmd } from './sort'; +export type { Timeout } from './timeout'; +export type { Transaction, TransactionOptions, TxnState } from './transactions'; +export type { + BufferPool, + Callback, + EventEmitterWithState, + HostAddress, + List, + MongoDBCollectionNamespace, + MongoDBNamespace +} from './utils'; +export type { W, WriteConcernOptions, WriteConcernSettings } from './write_concern'; diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_client.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_client.ts new file mode 100644 index 000000000..1e21aefe3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_client.ts @@ -0,0 +1,902 @@ +import { promises as fs } from 'fs'; +import type { TcpNetConnectOpts } from 'net'; +import type { ConnectionOptions as TLSConnectionOptions, TLSSocketOptions } from 'tls'; + +import { type BSONSerializeOptions, type Document, resolveBSONOptions } from './bson'; +import { ChangeStream, type ChangeStreamDocument, type ChangeStreamOptions } from './change_stream'; +import type { AutoEncrypter, AutoEncryptionOptions } from './client-side-encryption/auto_encrypter'; +import { + type AuthMechanismProperties, + DEFAULT_ALLOWED_HOSTS, + type MongoCredentials +} from './cmap/auth/mongo_credentials'; +import { AuthMechanism } from './cmap/auth/providers'; +import type { LEGAL_TCP_SOCKET_OPTIONS, LEGAL_TLS_SOCKET_OPTIONS } from './cmap/connect'; +import type { Connection } from './cmap/connection'; +import type { ClientMetadata } from './cmap/handshake/client_metadata'; +import type { CompressorName } from './cmap/wire_protocol/compression'; +import { parseOptions, resolveSRVRecord } from './connection_string'; +import { MONGO_CLIENT_EVENTS } from './constants'; +import { Db, type DbOptions } from './db'; +import type { Encrypter } from './encrypter'; +import { MongoInvalidArgumentError } from './error'; +import { MongoClientAuthProviders } from './mongo_client_auth_providers'; +import { + type LogComponentSeveritiesClientOptions, + type MongoDBLogWritable, + MongoLogger, + type MongoLoggerOptions, + SeverityLevel +} from './mongo_logger'; +import { TypedEventEmitter } from './mongo_types'; +import { executeOperation } from './operations/execute_operation'; +import { RunAdminCommandOperation } from './operations/run_command'; +import type { ReadConcern, ReadConcernLevel, ReadConcernLike } from './read_concern'; +import { ReadPreference, type ReadPreferenceMode } from './read_preference'; +import type { ServerMonitoringMode } from './sdam/monitor'; +import type { TagSet } from './sdam/server_description'; +import { readPreferenceServerSelector } from './sdam/server_selection'; +import type { SrvPoller } from './sdam/srv_polling'; +import { Topology, type TopologyEvents } from './sdam/topology'; +import { ClientSession, type ClientSessionOptions, ServerSessionPool } from './sessions'; +import { + COSMOS_DB_CHECK, + COSMOS_DB_MSG, + DOCUMENT_DB_CHECK, + DOCUMENT_DB_MSG, + type HostAddress, + hostMatchesWildcards, + isHostMatch, + type MongoDBNamespace, + ns, + resolveOptions, + squashError +} from './utils'; +import type { W, WriteConcern, WriteConcernSettings } from './write_concern'; + +/** @public */ +export const ServerApiVersion = Object.freeze({ + v1: '1' +} as const); + +/** @public */ +export type ServerApiVersion = (typeof ServerApiVersion)[keyof typeof ServerApiVersion]; + +/** @public */ +export interface ServerApi { + version: ServerApiVersion; + strict?: boolean; + deprecationErrors?: boolean; +} + +/** @public */ +export interface DriverInfo { + name?: string; + version?: string; + platform?: string; +} + +/** @public */ +export interface Auth { + /** The username for auth */ + username?: string; + /** The password for auth */ + password?: string; +} + +/** @public */ +export interface PkFactory { + createPk(): any; +} + +/** @public */ +export type SupportedTLSConnectionOptions = Pick< + TLSConnectionOptions, + Extract +>; + +/** @public */ +export type SupportedTLSSocketOptions = Pick< + TLSSocketOptions, + Extract +>; + +/** @public */ +export type SupportedSocketOptions = Pick< + TcpNetConnectOpts, + (typeof LEGAL_TCP_SOCKET_OPTIONS)[number] +>; + +/** @public */ +export type SupportedNodeConnectionOptions = SupportedTLSConnectionOptions & + SupportedTLSSocketOptions & + SupportedSocketOptions; + +/** + * Describes all possible URI query options for the mongo client + * @public + * @see https://www.mongodb.com/docs/manual/reference/connection-string + */ +export interface MongoClientOptions extends BSONSerializeOptions, SupportedNodeConnectionOptions { + /** Specifies the name of the replica set, if the mongod is a member of a replica set. */ + replicaSet?: string; + /** @internal TODO(NODE-5688): This option is in development and currently has no behaviour. */ + timeoutMS?: number; + /** Enables or disables TLS/SSL for the connection. */ + tls?: boolean; + /** A boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.) */ + ssl?: boolean; + /** Specifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key. */ + tlsCertificateKeyFile?: string; + /** Specifies the password to de-crypt the tlsCertificateKeyFile. */ + tlsCertificateKeyFilePassword?: string; + /** Specifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance. */ + tlsCAFile?: string; + /** Specifies the location of a local CRL .pem file that contains the client revokation list. */ + tlsCRLFile?: string; + /** Bypasses validation of the certificates presented by the mongod/mongos instance */ + tlsAllowInvalidCertificates?: boolean; + /** Disables hostname validation of the certificate presented by the mongod/mongos instance. */ + tlsAllowInvalidHostnames?: boolean; + /** Disables various certificate validations. */ + tlsInsecure?: boolean; + /** The time in milliseconds to attempt a connection before timing out. */ + connectTimeoutMS?: number; + /** The time in milliseconds to attempt a send or receive on a socket before the attempt times out. */ + socketTimeoutMS?: number; + /** An array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance. */ + compressors?: CompressorName[] | string; + /** An integer that specifies the compression level if using zlib for network compression. */ + zlibCompressionLevel?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | undefined; + /** The maximum number of hosts to connect to when using an srv connection string, a setting of `0` means unlimited hosts */ + srvMaxHosts?: number; + /** + * Modifies the srv URI to look like: + * + * `_{srvServiceName}._tcp.{hostname}.{domainname}` + * + * Querying this DNS URI is expected to respond with SRV records + */ + srvServiceName?: string; + /** The maximum number of connections in the connection pool. */ + maxPoolSize?: number; + /** The minimum number of connections in the connection pool. */ + minPoolSize?: number; + /** The maximum number of connections that may be in the process of being established concurrently by the connection pool. */ + maxConnecting?: number; + /** The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed. */ + maxIdleTimeMS?: number; + /** The maximum time in milliseconds that a thread can wait for a connection to become available. */ + waitQueueTimeoutMS?: number; + /** Specify a read concern for the collection (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcernLike; + /** The level of isolation */ + readConcernLevel?: ReadConcernLevel; + /** Specifies the read preferences for this connection */ + readPreference?: ReadPreferenceMode | ReadPreference; + /** Specifies, in seconds, how stale a secondary can be before the client stops using it for read operations. */ + maxStalenessSeconds?: number; + /** Specifies the tags document as a comma-separated list of colon-separated key-value pairs. */ + readPreferenceTags?: TagSet[]; + /** The auth settings for when connection to server. */ + auth?: Auth; + /** Specify the database name associated with the user’s credentials. */ + authSource?: string; + /** Specify the authentication mechanism that MongoDB will use to authenticate the connection. */ + authMechanism?: AuthMechanism; + /** Specify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs. */ + authMechanismProperties?: AuthMechanismProperties; + /** The size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances. */ + localThresholdMS?: number; + /** Specifies how long (in milliseconds) to block for server selection before throwing an exception. */ + serverSelectionTimeoutMS?: number; + /** heartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one. */ + heartbeatFrequencyMS?: number; + /** Sets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort. */ + minHeartbeatFrequencyMS?: number; + /** The name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections */ + appName?: string; + /** Enables retryable reads. */ + retryReads?: boolean; + /** Enable retryable writes. */ + retryWrites?: boolean; + /** Allow a driver to force a Single topology type with a connection string containing one host */ + directConnection?: boolean; + /** Instruct the driver it is connecting to a load balancer fronting a mongos like service */ + loadBalanced?: boolean; + /** + * The write concern w value + * @deprecated Please use the `writeConcern` option instead + */ + w?: W; + /** + * The write concern timeout + * @deprecated Please use the `writeConcern` option instead + */ + wtimeoutMS?: number; + /** + * The journal write concern + * @deprecated Please use the `writeConcern` option instead + */ + journal?: boolean; + /** + * A MongoDB WriteConcern, which describes the level of acknowledgement + * requested from MongoDB for write operations. + * + * @see https://www.mongodb.com/docs/manual/reference/write-concern/ + */ + writeConcern?: WriteConcern | WriteConcernSettings; + /** TCP Connection no delay */ + noDelay?: boolean; + /** Force server to assign `_id` values instead of driver */ + forceServerObjectId?: boolean; + /** A primary key factory function for generation of custom `_id` keys */ + pkFactory?: PkFactory; + /** Enable command monitoring for this client */ + monitorCommands?: boolean; + /** Server API version */ + serverApi?: ServerApi | ServerApiVersion; + /** + * Optionally enable in-use auto encryption + * + * @remarks + * Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error + * (see [libmongocrypt: Auto Encryption Allow-List](https://github.com/mongodb/specifications/blob/master/source/client-side-encryption/client-side-encryption.rst#libmongocrypt-auto-encryption-allow-list)). To bypass automatic encryption for all operations, set bypassAutoEncryption=true in AutoEncryptionOpts. + * + * Automatic encryption requires the authenticated user to have the [listCollections privilege action](https://www.mongodb.com/docs/manual/reference/command/listCollections/#dbcmd.listCollections). + * + * If a MongoClient with a limited connection pool size (i.e a non-zero maxPoolSize) is configured with AutoEncryptionOptions, a separate internal MongoClient is created if any of the following are true: + * - AutoEncryptionOptions.keyVaultClient is not passed. + * - AutoEncryptionOptions.bypassAutomaticEncryption is false. + * + * If an internal MongoClient is created, it is configured with the same options as the parent MongoClient except minPoolSize is set to 0 and AutoEncryptionOptions is omitted. + */ + autoEncryption?: AutoEncryptionOptions; + /** Allows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver */ + driverInfo?: DriverInfo; + /** Configures a Socks5 proxy host used for creating TCP connections. */ + proxyHost?: string; + /** Configures a Socks5 proxy port used for creating TCP connections. */ + proxyPort?: number; + /** Configures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication. */ + proxyUsername?: string; + /** Configures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication. */ + proxyPassword?: string; + /** Instructs the driver monitors to use a specific monitoring mode */ + serverMonitoringMode?: ServerMonitoringMode; + + /** @internal */ + srvPoller?: SrvPoller; + /** @internal */ + connectionType?: typeof Connection; + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogPath?: 'stderr' | 'stdout' | MongoDBLogWritable; + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogComponentSeverities?: LogComponentSeveritiesClientOptions; + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogMaxDocumentLength?: number; + + /** @internal */ + [featureFlag: symbol]: any; +} + +/** @public */ +export type WithSessionCallback = (session: ClientSession) => Promise; + +/** @internal */ +export interface MongoClientPrivate { + url: string; + bsonOptions: BSONSerializeOptions; + namespace: MongoDBNamespace; + hasBeenClosed: boolean; + authProviders: MongoClientAuthProviders; + /** + * We keep a reference to the sessions that are acquired from the pool. + * - used to track and close all sessions in client.close() (which is non-standard behavior) + * - used to notify the leak checker in our tests if test author forgot to clean up explicit sessions + */ + readonly activeSessions: Set; + readonly sessionPool: ServerSessionPool; + readonly options: MongoOptions; + readonly readConcern?: ReadConcern; + readonly writeConcern?: WriteConcern; + readonly readPreference: ReadPreference; + readonly isMongoClient: true; +} + +/** @public */ +export type MongoClientEvents = Pick & { + // In previous versions the open event emitted a topology, in an effort to no longer + // expose internals but continue to expose this useful event API, it now emits a mongoClient + open(mongoClient: MongoClient): void; +}; + +/** @internal */ + +const kOptions = Symbol('options'); + +/** + * The **MongoClient** class is a class that allows for making Connections to MongoDB. + * @public + * + * @remarks + * The programmatically provided options take precedence over the URI options. + * + * @example + * ```ts + * import { MongoClient } from 'mongodb'; + * + * // Enable command monitoring for debugging + * const client = new MongoClient('mongodb://localhost:27017', { monitorCommands: true }); + * + * client.on('commandStarted', started => console.log(started)); + * client.db().collection('pets'); + * await client.insertOne({ name: 'spot', kind: 'dog' }); + * ``` + */ +export class MongoClient extends TypedEventEmitter { + /** @internal */ + s: MongoClientPrivate; + /** @internal */ + topology?: Topology; + /** @internal */ + override readonly mongoLogger: MongoLogger | undefined; + /** @internal */ + private connectionLock?: Promise; + + /** + * The consolidate, parsed, transformed and merged options. + * @internal + */ + [kOptions]: MongoOptions; + + constructor(url: string, options?: MongoClientOptions) { + super(); + + this[kOptions] = parseOptions(url, this, options); + + const shouldSetLogger = Object.values( + this[kOptions].mongoLoggerOptions.componentSeverities + ).some(value => value !== SeverityLevel.OFF); + this.mongoLogger = shouldSetLogger + ? new MongoLogger(this[kOptions].mongoLoggerOptions) + : undefined; + + // eslint-disable-next-line @typescript-eslint/no-this-alias + const client = this; + + // The internal state + this.s = { + url, + bsonOptions: resolveBSONOptions(this[kOptions]), + namespace: ns('admin'), + hasBeenClosed: false, + sessionPool: new ServerSessionPool(this), + activeSessions: new Set(), + authProviders: new MongoClientAuthProviders(), + + get options() { + return client[kOptions]; + }, + get readConcern() { + return client[kOptions].readConcern; + }, + get writeConcern() { + return client[kOptions].writeConcern; + }, + get readPreference() { + return client[kOptions].readPreference; + }, + get isMongoClient(): true { + return true; + } + }; + this.checkForNonGenuineHosts(); + } + + /** @internal */ + private checkForNonGenuineHosts() { + const documentDBHostnames = this[kOptions].hosts.filter((hostAddress: HostAddress) => + isHostMatch(DOCUMENT_DB_CHECK, hostAddress.host) + ); + const srvHostIsDocumentDB = isHostMatch(DOCUMENT_DB_CHECK, this[kOptions].srvHost); + + const cosmosDBHostnames = this[kOptions].hosts.filter((hostAddress: HostAddress) => + isHostMatch(COSMOS_DB_CHECK, hostAddress.host) + ); + const srvHostIsCosmosDB = isHostMatch(COSMOS_DB_CHECK, this[kOptions].srvHost); + + if (documentDBHostnames.length !== 0 || srvHostIsDocumentDB) { + this.mongoLogger?.info('client', DOCUMENT_DB_MSG); + } else if (cosmosDBHostnames.length !== 0 || srvHostIsCosmosDB) { + this.mongoLogger?.info('client', COSMOS_DB_MSG); + } + } + + /** @see MongoOptions */ + get options(): Readonly { + return Object.freeze({ ...this[kOptions] }); + } + + get serverApi(): Readonly { + return this[kOptions].serverApi && Object.freeze({ ...this[kOptions].serverApi }); + } + /** + * Intended for APM use only + * @internal + */ + get monitorCommands(): boolean { + return this[kOptions].monitorCommands; + } + set monitorCommands(value: boolean) { + this[kOptions].monitorCommands = value; + } + + /** @internal */ + get autoEncrypter(): AutoEncrypter | undefined { + return this[kOptions].autoEncrypter; + } + + get readConcern(): ReadConcern | undefined { + return this.s.readConcern; + } + + get writeConcern(): WriteConcern | undefined { + return this.s.writeConcern; + } + + get readPreference(): ReadPreference { + return this.s.readPreference; + } + + get bsonOptions(): BSONSerializeOptions { + return this.s.bsonOptions; + } + + /** + * Connect to MongoDB using a url + * + * @see docs.mongodb.org/manual/reference/connection-string/ + */ + async connect(): Promise { + if (this.connectionLock) { + return await this.connectionLock; + } + + try { + this.connectionLock = this._connect(); + await this.connectionLock; + } finally { + // release + this.connectionLock = undefined; + } + + return this; + } + + /** + * Create a topology to open the connection, must be locked to avoid topology leaks in concurrency scenario. + * Locking is enforced by the connect method. + * + * @internal + */ + private async _connect(): Promise { + if (this.topology && this.topology.isConnected()) { + return this; + } + + const options = this[kOptions]; + + if (options.tls) { + if (typeof options.tlsCAFile === 'string') { + options.ca ??= await fs.readFile(options.tlsCAFile); + } + if (typeof options.tlsCRLFile === 'string') { + options.crl ??= await fs.readFile(options.tlsCRLFile); + } + if (typeof options.tlsCertificateKeyFile === 'string') { + if (!options.key || !options.cert) { + const contents = await fs.readFile(options.tlsCertificateKeyFile); + options.key ??= contents; + options.cert ??= contents; + } + } + } + if (typeof options.srvHost === 'string') { + const hosts = await resolveSRVRecord(options); + + for (const [index, host] of hosts.entries()) { + options.hosts[index] = host; + } + } + + // It is important to perform validation of hosts AFTER SRV resolution, to check the real hostname, + // but BEFORE we even attempt connecting with a potentially not allowed hostname + if (options.credentials?.mechanism === AuthMechanism.MONGODB_OIDC) { + const allowedHosts = + options.credentials?.mechanismProperties?.ALLOWED_HOSTS || DEFAULT_ALLOWED_HOSTS; + const isServiceAuth = !!options.credentials?.mechanismProperties?.PROVIDER_NAME; + if (!isServiceAuth) { + for (const host of options.hosts) { + if (!hostMatchesWildcards(host.toHostPort().host, allowedHosts)) { + throw new MongoInvalidArgumentError( + `Host '${host}' is not valid for OIDC authentication with ALLOWED_HOSTS of '${allowedHosts.join( + ',' + )}'` + ); + } + } + } + } + + this.topology = new Topology(this, options.hosts, options); + // Events can be emitted before initialization is complete so we have to + // save the reference to the topology on the client ASAP if the event handlers need to access it + + this.topology.once(Topology.OPEN, () => this.emit('open', this)); + + for (const event of MONGO_CLIENT_EVENTS) { + this.topology.on(event, (...args: any[]) => this.emit(event, ...(args as any))); + } + + const topologyConnect = async () => { + try { + await this.topology?.connect(options); + } catch (error) { + this.topology?.close(); + throw error; + } + }; + + if (this.autoEncrypter) { + await this.autoEncrypter?.init(); + await topologyConnect(); + await options.encrypter.connectInternalClient(); + } else { + await topologyConnect(); + } + + return this; + } + + /** + * Close the client and its underlying connections + * + * @param force - Force close, emitting no events + */ + async close(force = false): Promise { + // There's no way to set hasBeenClosed back to false + Object.defineProperty(this.s, 'hasBeenClosed', { + value: true, + enumerable: true, + configurable: false, + writable: false + }); + + const activeSessionEnds = Array.from(this.s.activeSessions, session => session.endSession()); + this.s.activeSessions.clear(); + + await Promise.all(activeSessionEnds); + + if (this.topology == null) { + return; + } + + // If we would attempt to select a server and get nothing back we short circuit + // to avoid the server selection timeout. + const selector = readPreferenceServerSelector(ReadPreference.primaryPreferred); + const topologyDescription = this.topology.description; + const serverDescriptions = Array.from(topologyDescription.servers.values()); + const servers = selector(topologyDescription, serverDescriptions); + if (servers.length !== 0) { + const endSessions = Array.from(this.s.sessionPool.sessions, ({ id }) => id); + if (endSessions.length !== 0) { + try { + await executeOperation( + this, + new RunAdminCommandOperation( + { endSessions }, + { readPreference: ReadPreference.primaryPreferred, noResponse: true } + ) + ); + } catch (error) { + squashError(error); + } + } + } + + // clear out references to old topology + const topology = this.topology; + this.topology = undefined; + + topology.close(); + + const { encrypter } = this[kOptions]; + if (encrypter) { + await encrypter.close(this, force); + } + } + + /** + * Create a new Db instance sharing the current socket connections. + * + * @param dbName - The name of the database we want to use. If not provided, use database name from connection string. + * @param options - Optional settings for Db construction + */ + db(dbName?: string, options?: DbOptions): Db { + options = options ?? {}; + + // Default to db from connection string if not provided + if (!dbName) { + dbName = this.options.dbName; + } + + // Copy the options and add out internal override of the not shared flag + const finalOptions = Object.assign({}, this[kOptions], options); + + // Return the db object + const db = new Db(this, dbName, finalOptions); + + // Return the database + return db; + } + + /** + * Connect to MongoDB using a url + * + * @remarks + * The programmatically provided options take precedence over the URI options. + * + * @see https://www.mongodb.com/docs/manual/reference/connection-string/ + */ + static async connect(url: string, options?: MongoClientOptions): Promise { + const client = new this(url, options); + return await client.connect(); + } + + /** + * Creates a new ClientSession. When using the returned session in an operation + * a corresponding ServerSession will be created. + * + * @remarks + * A ClientSession instance may only be passed to operations being performed on the same + * MongoClient it was started from. + */ + startSession(options?: ClientSessionOptions): ClientSession { + const session = new ClientSession( + this, + this.s.sessionPool, + { explicit: true, ...options }, + this[kOptions] + ); + this.s.activeSessions.add(session); + session.once('ended', () => { + this.s.activeSessions.delete(session); + }); + return session; + } + + /** + * A convenience method for creating and handling the clean up of a ClientSession. + * The session will always be ended when the executor finishes. + * + * @param executor - An executor function that all operations using the provided session must be invoked in + * @param options - optional settings for the session + */ + async withSession(executor: WithSessionCallback): Promise; + async withSession( + options: ClientSessionOptions, + executor: WithSessionCallback + ): Promise; + async withSession( + optionsOrExecutor: ClientSessionOptions | WithSessionCallback, + executor?: WithSessionCallback + ): Promise { + const options = { + // Always define an owner + owner: Symbol(), + // If it's an object inherit the options + ...(typeof optionsOrExecutor === 'object' ? optionsOrExecutor : {}) + }; + + const withSessionCallback = + typeof optionsOrExecutor === 'function' ? optionsOrExecutor : executor; + + if (withSessionCallback == null) { + throw new MongoInvalidArgumentError('Missing required callback parameter'); + } + + const session = this.startSession(options); + + try { + return await withSessionCallback(session); + } finally { + try { + await session.endSession(); + } catch (error) { + squashError(error); + } + } + } + + /** + * Create a new Change Stream, watching for new changes (insertions, updates, + * replacements, deletions, and invalidations) in this cluster. Will ignore all + * changes to system collections, as well as the local, admin, and config databases. + * + * @remarks + * watch() accepts two generic arguments for distinct use cases: + * - The first is to provide the schema that may be defined for all the data within the current cluster + * - The second is to override the shape of the change stream document entirely, if it is not provided the type will default to ChangeStreamDocument of the first argument + * + * @param pipeline - An array of {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents. + * @param options - Optional settings for the command + * @typeParam TSchema - Type of the data being detected by the change stream + * @typeParam TChange - Type of the whole change stream document emitted + */ + watch< + TSchema extends Document = Document, + TChange extends Document = ChangeStreamDocument + >(pipeline: Document[] = [], options: ChangeStreamOptions = {}): ChangeStream { + // Allow optionally not specifying a pipeline + if (!Array.isArray(pipeline)) { + options = pipeline; + pipeline = []; + } + + return new ChangeStream(this, pipeline, resolveOptions(this, options)); + } +} + +/** + * Parsed Mongo Client Options. + * + * User supplied options are documented by `MongoClientOptions`. + * + * **NOTE:** The client's options parsing is subject to change to support new features. + * This type is provided to aid with inspection of options after parsing, it should not be relied upon programmatically. + * + * Options are sourced from: + * - connection string + * - options object passed to the MongoClient constructor + * - file system (ex. tls settings) + * - environment variables + * - DNS SRV records and TXT records + * + * Not all options may be present after client construction as some are obtained from asynchronous operations. + * + * @public + */ +export interface MongoOptions + extends Required< + Pick< + MongoClientOptions, + | 'autoEncryption' + | 'connectTimeoutMS' + | 'directConnection' + | 'driverInfo' + | 'forceServerObjectId' + | 'minHeartbeatFrequencyMS' + | 'heartbeatFrequencyMS' + | 'localThresholdMS' + | 'maxConnecting' + | 'maxIdleTimeMS' + | 'maxPoolSize' + | 'minPoolSize' + | 'monitorCommands' + | 'noDelay' + | 'pkFactory' + | 'raw' + | 'replicaSet' + | 'retryReads' + | 'retryWrites' + | 'serverSelectionTimeoutMS' + | 'socketTimeoutMS' + | 'srvMaxHosts' + | 'srvServiceName' + | 'tlsAllowInvalidCertificates' + | 'tlsAllowInvalidHostnames' + | 'tlsInsecure' + | 'waitQueueTimeoutMS' + | 'zlibCompressionLevel' + > + >, + SupportedNodeConnectionOptions { + appName?: string; + hosts: HostAddress[]; + srvHost?: string; + credentials?: MongoCredentials; + readPreference: ReadPreference; + readConcern: ReadConcern; + loadBalanced: boolean; + directConnection: boolean; + serverApi: ServerApi; + compressors: CompressorName[]; + writeConcern: WriteConcern; + dbName: string; + metadata: ClientMetadata; + /** @internal */ + extendedMetadata: Promise; + /** @internal */ + autoEncrypter?: AutoEncrypter; + proxyHost?: string; + proxyPort?: number; + proxyUsername?: string; + proxyPassword?: string; + serverMonitoringMode: ServerMonitoringMode; + /** @internal */ + connectionType?: typeof Connection; + /** @internal */ + authProviders: MongoClientAuthProviders; + /** @internal */ + encrypter: Encrypter; + /** @internal */ + userSpecifiedAuthSource: boolean; + /** @internal */ + userSpecifiedReplicaSet: boolean; + + /** + * # NOTE ABOUT TLS Options + * + * If `tls` is provided as an option, it is equivalent to setting the `ssl` option. + * + * NodeJS native TLS options are passed through to the socket and retain their original types. + * + * ### Additional options: + * + * | nodejs native option | driver spec equivalent option name | driver option type | + * |:----------------------|:----------------------------------------------|:-------------------| + * | `ca` | `tlsCAFile` | `string` | + * | `crl` | `tlsCRLFile` | `string` | + * | `cert` | `tlsCertificateKeyFile` | `string` | + * | `key` | `tlsCertificateKeyFile` | `string` | + * | `passphrase` | `tlsCertificateKeyFilePassword` | `string` | + * | `rejectUnauthorized` | `tlsAllowInvalidCertificates` | `boolean` | + * | `checkServerIdentity` | `tlsAllowInvalidHostnames` | `boolean` | + * | see note below | `tlsInsecure` | `boolean` | + * + * If `tlsInsecure` is set to `true`, then it will set the node native options `checkServerIdentity` + * to a no-op and `rejectUnauthorized` to `false`. + * + * If `tlsInsecure` is set to `false`, then it will set the node native options `checkServerIdentity` + * to a no-op and `rejectUnauthorized` to the inverse value of `tlsAllowInvalidCertificates`. If + * `tlsAllowInvalidCertificates` is not set, then `rejectUnauthorized` will be set to `true`. + * + * ### Note on `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile` + * + * The files specified by the paths passed in to the `tlsCAFile`, `tlsCertificateKeyFile` and `tlsCRLFile` + * fields are read lazily on the first call to `MongoClient.connect`. Once these files have been read and + * the `ca`, `cert`, `crl` and `key` fields are populated, they will not be read again on subsequent calls to + * `MongoClient.connect`. As a result, until the first call to `MongoClient.connect`, the `ca`, + * `cert`, `crl` and `key` fields will be undefined. + */ + tls: boolean; + tlsCAFile?: string; + tlsCRLFile?: string; + tlsCertificateKeyFile?: string; + + /** @internal */ + [featureFlag: symbol]: any; + + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongoLoggerOptions: MongoLoggerOptions; + /** + * @internal + * TODO: NODE-5671 - remove internal flag + */ + mongodbLogPath?: 'stderr' | 'stdout' | MongoDBLogWritable; + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_client_auth_providers.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_client_auth_providers.ts new file mode 100644 index 000000000..557783c4e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_client_auth_providers.ts @@ -0,0 +1,54 @@ +import { type AuthProvider } from './cmap/auth/auth_provider'; +import { GSSAPI } from './cmap/auth/gssapi'; +import { MongoCR } from './cmap/auth/mongocr'; +import { MongoDBAWS } from './cmap/auth/mongodb_aws'; +import { MongoDBOIDC } from './cmap/auth/mongodb_oidc'; +import { Plain } from './cmap/auth/plain'; +import { AuthMechanism } from './cmap/auth/providers'; +import { ScramSHA1, ScramSHA256 } from './cmap/auth/scram'; +import { X509 } from './cmap/auth/x509'; +import { MongoInvalidArgumentError } from './error'; + +/** @internal */ +const AUTH_PROVIDERS = new Map AuthProvider>([ + [AuthMechanism.MONGODB_AWS, () => new MongoDBAWS()], + [AuthMechanism.MONGODB_CR, () => new MongoCR()], + [AuthMechanism.MONGODB_GSSAPI, () => new GSSAPI()], + [AuthMechanism.MONGODB_OIDC, () => new MongoDBOIDC()], + [AuthMechanism.MONGODB_PLAIN, () => new Plain()], + [AuthMechanism.MONGODB_SCRAM_SHA1, () => new ScramSHA1()], + [AuthMechanism.MONGODB_SCRAM_SHA256, () => new ScramSHA256()], + [AuthMechanism.MONGODB_X509, () => new X509()] +]); + +/** + * Create a set of providers per client + * to avoid sharing the provider's cache between different clients. + * @internal + */ +export class MongoClientAuthProviders { + private existingProviders: Map = new Map(); + + /** + * Get or create an authentication provider based on the provided mechanism. + * We don't want to create all providers at once, as some providers may not be used. + * @param name - The name of the provider to get or create. + * @returns The provider. + * @throws MongoInvalidArgumentError if the mechanism is not supported. + * @internal + */ + getOrCreateProvider(name: AuthMechanism | string): AuthProvider { + const authProvider = this.existingProviders.get(name); + if (authProvider) { + return authProvider; + } + + const provider = AUTH_PROVIDERS.get(name)?.(); + if (!provider) { + throw new MongoInvalidArgumentError(`authMechanism ${name} not supported`); + } + + this.existingProviders.set(name, provider); + return provider; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_logger.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_logger.ts new file mode 100644 index 000000000..2310ce844 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_logger.ts @@ -0,0 +1,928 @@ +import { inspect, promisify } from 'util'; + +import { type Document, EJSON, type EJSONOptions, type ObjectId } from './bson'; +import type { CommandStartedEvent } from './cmap/command_monitoring_events'; +import type { + ConnectionCheckedInEvent, + ConnectionCheckedOutEvent, + ConnectionCheckOutFailedEvent, + ConnectionCheckOutStartedEvent, + ConnectionClosedEvent, + ConnectionCreatedEvent, + ConnectionPoolClearedEvent, + ConnectionPoolClosedEvent, + ConnectionPoolCreatedEvent, + ConnectionPoolReadyEvent, + ConnectionReadyEvent +} from './cmap/connection_pool_events'; +import { + COMMAND_FAILED, + COMMAND_STARTED, + COMMAND_SUCCEEDED, + CONNECTION_CHECK_OUT_FAILED, + CONNECTION_CHECK_OUT_STARTED, + CONNECTION_CHECKED_IN, + CONNECTION_CHECKED_OUT, + CONNECTION_CLOSED, + CONNECTION_CREATED, + CONNECTION_POOL_CLEARED, + CONNECTION_POOL_CLOSED, + CONNECTION_POOL_CREATED, + CONNECTION_POOL_READY, + CONNECTION_READY, + SERVER_CLOSED, + SERVER_HEARTBEAT_FAILED, + SERVER_HEARTBEAT_STARTED, + SERVER_HEARTBEAT_SUCCEEDED, + SERVER_OPENING, + SERVER_SELECTION_FAILED, + SERVER_SELECTION_STARTED, + SERVER_SELECTION_SUCCEEDED, + TOPOLOGY_CLOSED, + TOPOLOGY_DESCRIPTION_CHANGED, + TOPOLOGY_OPENING, + WAITING_FOR_SUITABLE_SERVER +} from './constants'; +import type { + ServerClosedEvent, + ServerOpeningEvent, + TopologyClosedEvent, + TopologyDescriptionChangedEvent, + TopologyOpeningEvent +} from './sdam/events'; +import type { + ServerSelectionEvent, + ServerSelectionFailedEvent, + ServerSelectionStartedEvent, + ServerSelectionSucceededEvent, + WaitingForSuitableServerEvent +} from './sdam/server_selection_events'; +import { HostAddress, isPromiseLike, parseUnsignedInteger } from './utils'; + +/** @internal */ +export const SeverityLevel = Object.freeze({ + EMERGENCY: 'emergency', + ALERT: 'alert', + CRITICAL: 'critical', + ERROR: 'error', + WARNING: 'warn', + NOTICE: 'notice', + INFORMATIONAL: 'info', + DEBUG: 'debug', + TRACE: 'trace', + OFF: 'off' +} as const); + +/** @internal */ +export const DEFAULT_MAX_DOCUMENT_LENGTH = 1000; +/** @internal */ +export type SeverityLevel = (typeof SeverityLevel)[keyof typeof SeverityLevel]; + +/** @internal */ +class SeverityLevelMap extends Map { + constructor(entries: [SeverityLevel | number, SeverityLevel | number][]) { + const newEntries: [number | SeverityLevel, SeverityLevel | number][] = []; + for (const [level, value] of entries) { + newEntries.push([value, level]); + } + + newEntries.push(...entries); + super(newEntries); + } + + getNumericSeverityLevel(severity: SeverityLevel): number { + return this.get(severity) as number; + } + + getSeverityLevelName(level: number): SeverityLevel | undefined { + return this.get(level) as SeverityLevel | undefined; + } +} + +/** @internal */ +export const SEVERITY_LEVEL_MAP = new SeverityLevelMap([ + [SeverityLevel.OFF, -Infinity], + [SeverityLevel.EMERGENCY, 0], + [SeverityLevel.ALERT, 1], + [SeverityLevel.CRITICAL, 2], + [SeverityLevel.ERROR, 3], + [SeverityLevel.WARNING, 4], + [SeverityLevel.NOTICE, 5], + [SeverityLevel.INFORMATIONAL, 6], + [SeverityLevel.DEBUG, 7], + [SeverityLevel.TRACE, 8] +]); + +/** @internal */ +export const MongoLoggableComponent = Object.freeze({ + COMMAND: 'command', + TOPOLOGY: 'topology', + SERVER_SELECTION: 'serverSelection', + CONNECTION: 'connection', + CLIENT: 'client' +} as const); + +/** @internal */ +export type MongoLoggableComponent = + (typeof MongoLoggableComponent)[keyof typeof MongoLoggableComponent]; + +/** @internal */ +export interface MongoLoggerEnvOptions { + /** Severity level for command component */ + MONGODB_LOG_COMMAND?: string; + /** Severity level for topology component */ + MONGODB_LOG_TOPOLOGY?: string; + /** Severity level for server selection component */ + MONGODB_LOG_SERVER_SELECTION?: string; + /** Severity level for CMAP */ + MONGODB_LOG_CONNECTION?: string; + /** Severity level for client */ + MONGODB_LOG_CLIENT?: string; + /** Default severity level to be if any of the above are unset */ + MONGODB_LOG_ALL?: string; + /** Max length of embedded EJSON docs. Setting to 0 disables truncation. Defaults to 1000. */ + MONGODB_LOG_MAX_DOCUMENT_LENGTH?: string; + /** Destination for log messages. Must be 'stderr', 'stdout'. Defaults to 'stderr'. */ + MONGODB_LOG_PATH?: string; +} + +/** @internal */ +export interface LogComponentSeveritiesClientOptions { + /** Optional severity level for command component */ + command?: SeverityLevel; + /** Optional severity level for topology component */ + topology?: SeverityLevel; + /** Optionsl severity level for server selection component */ + serverSelection?: SeverityLevel; + /** Optional severity level for connection component */ + connection?: SeverityLevel; + /** Optional severity level for client component */ + client?: SeverityLevel; + /** Optional default severity level to be used if any of the above are unset */ + default?: SeverityLevel; +} + +/** @internal */ +export interface MongoLoggerMongoClientOptions { + /** Destination for log messages */ + mongodbLogPath?: 'stdout' | 'stderr' | MongoDBLogWritable; + /** Severity levels for logger components */ + mongodbLogComponentSeverities?: LogComponentSeveritiesClientOptions; + /** Max length of embedded EJSON docs. Setting to 0 disables truncation. Defaults to 1000. */ + mongodbLogMaxDocumentLength?: number; +} + +/** @internal */ +export interface MongoLoggerOptions { + componentSeverities: { + /** Severity level for command component */ + command: SeverityLevel; + /** Severity level for topology component */ + topology: SeverityLevel; + /** Severity level for server selection component */ + serverSelection: SeverityLevel; + /** Severity level for connection component */ + connection: SeverityLevel; + /** Severity level for client component */ + client: SeverityLevel; + /** Default severity level to be used if any of the above are unset */ + default: SeverityLevel; + }; + /** Max length of embedded EJSON docs. Setting to 0 disables truncation. Defaults to 1000. */ + maxDocumentLength: number; + /** Destination for log messages. */ + logDestination: MongoDBLogWritable; + /** For internal check to see if error should stop logging. */ + logDestinationIsStdErr: boolean; +} + +/** + * Parses a string as one of SeverityLevel + * @internal + * + * @param s - the value to be parsed + * @returns one of SeverityLevel if value can be parsed as such, otherwise null + */ +export function parseSeverityFromString(s?: string): SeverityLevel | null { + const validSeverities: string[] = Object.values(SeverityLevel); + const lowerSeverity = s?.toLowerCase(); + + if (lowerSeverity != null && validSeverities.includes(lowerSeverity)) { + return lowerSeverity as SeverityLevel; + } + + return null; +} + +/** @internal */ +export function createStdioLogger(stream: { + write: NodeJS.WriteStream['write']; +}): MongoDBLogWritable { + return { + write: promisify((log: Log, cb: (error?: Error) => void): unknown => { + const logLine = inspect(log, { compact: true, breakLength: Infinity }); + stream.write(`${logLine}\n`, 'utf-8', cb); + return; + }) + }; +} + +/** + * resolves the MONGODB_LOG_PATH and mongodbLogPath options from the environment and the + * mongo client options respectively. The mongodbLogPath can be either 'stdout', 'stderr', a NodeJS + * Writable or an object which has a `write` method with the signature: + * ```ts + * write(log: Log): void + * ``` + * + * @returns the MongoDBLogWritable object to write logs to + */ +function resolveLogPath( + { MONGODB_LOG_PATH }: MongoLoggerEnvOptions, + { mongodbLogPath }: MongoLoggerMongoClientOptions +): { mongodbLogPath: MongoDBLogWritable; mongodbLogPathIsStdErr: boolean } { + if (typeof mongodbLogPath === 'string' && /^stderr$/i.test(mongodbLogPath)) { + return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true }; + } + if (typeof mongodbLogPath === 'string' && /^stdout$/i.test(mongodbLogPath)) { + return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false }; + } + + if (typeof mongodbLogPath === 'object' && typeof mongodbLogPath?.write === 'function') { + return { mongodbLogPath: mongodbLogPath, mongodbLogPathIsStdErr: false }; + } + + if (MONGODB_LOG_PATH && /^stderr$/i.test(MONGODB_LOG_PATH)) { + return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true }; + } + if (MONGODB_LOG_PATH && /^stdout$/i.test(MONGODB_LOG_PATH)) { + return { mongodbLogPath: createStdioLogger(process.stdout), mongodbLogPathIsStdErr: false }; + } + + return { mongodbLogPath: createStdioLogger(process.stderr), mongodbLogPathIsStdErr: true }; +} + +function resolveSeverityConfiguration( + clientOption: string | undefined, + environmentOption: string | undefined, + defaultSeverity: SeverityLevel +): SeverityLevel { + return ( + parseSeverityFromString(clientOption) ?? + parseSeverityFromString(environmentOption) ?? + defaultSeverity + ); +} + +/** @internal */ +export interface Log extends Record { + t: Date; + c: MongoLoggableComponent; + s: SeverityLevel; + message?: string; +} + +/** + * @internal + * TODO: NODE-5671 - remove internal flag and add API comments + */ +export interface MongoDBLogWritable { + write(log: Log): PromiseLike | unknown; +} + +function compareSeverity(s0: SeverityLevel, s1: SeverityLevel): 1 | 0 | -1 { + const s0Num = SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s0); + const s1Num = SEVERITY_LEVEL_MAP.getNumericSeverityLevel(s1); + + return s0Num < s1Num ? -1 : s0Num > s1Num ? 1 : 0; +} + +/** + * @internal + * Must be separate from Events API due to differences in spec requirements for logging a command success + */ +export type LoggableCommandSucceededEvent = { + address: string; + connectionId?: string | number; + requestId: number; + duration: number; + commandName: string; + reply: Document | undefined; + serviceId?: ObjectId; + name: typeof COMMAND_SUCCEEDED; + serverConnectionId: bigint | null; + databaseName: string; +}; + +/** + * @internal + * Must be separate from Events API due to differences in spec requirements for logging a command failure + */ +export type LoggableCommandFailedEvent = { + address: string; + connectionId?: string | number; + requestId: number; + duration: number; + commandName: string; + failure: Error; + serviceId?: ObjectId; + name: typeof COMMAND_FAILED; + serverConnectionId: bigint | null; + databaseName: string; +}; + +/** + * @internal + * Must be separate from Events API due to differences in spec requirements for logging server heartbeat beginning + */ +export type LoggableServerHeartbeatStartedEvent = { + topologyId: number; + awaited: boolean; + connectionId: string; + name: typeof SERVER_HEARTBEAT_STARTED; +}; + +/** + * @internal + * Must be separate from Events API due to differences in spec requirements for logging server heartbeat success + */ +export type LoggableServerHeartbeatSucceededEvent = { + topologyId: number; + awaited: boolean; + connectionId: string; + reply: Document; + serverConnectionId: number | ''; + duration: number; + name: typeof SERVER_HEARTBEAT_SUCCEEDED; +}; + +/** + * @internal + * Must be separate from Events API due to differences in spec requirements for logging server heartbeat failure + */ +export type LoggableServerHeartbeatFailedEvent = { + topologyId: number; + awaited: boolean; + connectionId: string; + failure: Error; + duration: number; + name: typeof SERVER_HEARTBEAT_FAILED; +}; + +type SDAMLoggableEvent = + | ServerClosedEvent + | LoggableServerHeartbeatFailedEvent + | LoggableServerHeartbeatStartedEvent + | LoggableServerHeartbeatSucceededEvent + | ServerOpeningEvent + | TopologyClosedEvent + | TopologyDescriptionChangedEvent + | TopologyOpeningEvent; + +/** @internal */ +export type LoggableEvent = + | ServerSelectionStartedEvent + | ServerSelectionFailedEvent + | ServerSelectionSucceededEvent + | WaitingForSuitableServerEvent + | CommandStartedEvent + | LoggableCommandSucceededEvent + | LoggableCommandFailedEvent + | ConnectionPoolCreatedEvent + | ConnectionPoolReadyEvent + | ConnectionPoolClosedEvent + | ConnectionPoolClearedEvent + | ConnectionCreatedEvent + | ConnectionReadyEvent + | ConnectionClosedEvent + | ConnectionCheckedInEvent + | ConnectionCheckedOutEvent + | ConnectionCheckOutStartedEvent + | ConnectionCheckOutFailedEvent + | ServerClosedEvent + | LoggableServerHeartbeatFailedEvent + | LoggableServerHeartbeatStartedEvent + | LoggableServerHeartbeatSucceededEvent + | ServerOpeningEvent + | TopologyClosedEvent + | TopologyDescriptionChangedEvent + | TopologyOpeningEvent; + +/** @internal */ +export interface LogConvertible extends Record { + toLog(): Record; +} + +/** @internal */ +export function stringifyWithMaxLen( + value: any, + maxDocumentLength: number, + options: EJSONOptions = {} +): string { + let strToTruncate = ''; + + if (typeof value === 'string') { + strToTruncate = value; + } else if (typeof value === 'function') { + strToTruncate = value.name; + } else { + try { + strToTruncate = EJSON.stringify(value, options); + } catch (e) { + strToTruncate = `Extended JSON serialization failed with: ${e.message}`; + } + } + + // handle truncation that occurs in the middle of multi-byte codepoints + if ( + maxDocumentLength !== 0 && + strToTruncate.length > maxDocumentLength && + strToTruncate.charCodeAt(maxDocumentLength - 1) !== + strToTruncate.codePointAt(maxDocumentLength - 1) + ) { + maxDocumentLength--; + if (maxDocumentLength === 0) { + return ''; + } + } + + return maxDocumentLength !== 0 && strToTruncate.length > maxDocumentLength + ? `${strToTruncate.slice(0, maxDocumentLength)}...` + : strToTruncate; +} + +/** @internal */ +export type Loggable = LoggableEvent | LogConvertible; + +function isLogConvertible(obj: Loggable): obj is LogConvertible { + const objAsLogConvertible = obj as LogConvertible; + // eslint-disable-next-line no-restricted-syntax + return objAsLogConvertible.toLog !== undefined && typeof objAsLogConvertible.toLog === 'function'; +} + +function attachServerSelectionFields( + log: Record, + serverSelectionEvent: ServerSelectionEvent, + maxDocumentLength: number = DEFAULT_MAX_DOCUMENT_LENGTH +) { + const { selector, operation, topologyDescription, message } = serverSelectionEvent; + log.selector = stringifyWithMaxLen(selector, maxDocumentLength); + log.operation = operation; + log.topologyDescription = stringifyWithMaxLen(topologyDescription, maxDocumentLength); + log.message = message; + + return log; +} + +function attachCommandFields( + log: Record, + commandEvent: CommandStartedEvent | LoggableCommandSucceededEvent | LoggableCommandFailedEvent +) { + log.commandName = commandEvent.commandName; + log.requestId = commandEvent.requestId; + log.driverConnectionId = commandEvent.connectionId; + const { host, port } = HostAddress.fromString(commandEvent.address).toHostPort(); + log.serverHost = host; + log.serverPort = port; + if (commandEvent?.serviceId) { + log.serviceId = commandEvent.serviceId.toHexString(); + } + log.databaseName = commandEvent.databaseName; + log.serverConnectionId = commandEvent.serverConnectionId; + + return log; +} + +function attachConnectionFields(log: Record, event: any) { + const { host, port } = HostAddress.fromString(event.address).toHostPort(); + log.serverHost = host; + log.serverPort = port; + + return log; +} + +function attachSDAMFields(log: Record, sdamEvent: SDAMLoggableEvent) { + log.topologyId = sdamEvent.topologyId; + return log; +} + +function attachServerHeartbeatFields( + log: Record, + serverHeartbeatEvent: + | LoggableServerHeartbeatFailedEvent + | LoggableServerHeartbeatStartedEvent + | LoggableServerHeartbeatSucceededEvent +) { + const { awaited, connectionId } = serverHeartbeatEvent; + log.awaited = awaited; + log.driverConnectionId = serverHeartbeatEvent.connectionId; + const { host, port } = HostAddress.fromString(connectionId).toHostPort(); + log.serverHost = host; + log.serverPort = port; + return log; +} + +/** @internal */ +export function defaultLogTransform( + logObject: LoggableEvent | Record, + maxDocumentLength: number = DEFAULT_MAX_DOCUMENT_LENGTH +): Omit { + let log: Omit = Object.create(null); + + switch (logObject.name) { + case SERVER_SELECTION_STARTED: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + return log; + case SERVER_SELECTION_FAILED: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + log.failure = logObject.failure?.message; + return log; + case SERVER_SELECTION_SUCCEEDED: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + log.serverHost = logObject.serverHost; + log.serverPort = logObject.serverPort; + return log; + case WAITING_FOR_SUITABLE_SERVER: + log = attachServerSelectionFields(log, logObject, maxDocumentLength); + log.remainingTimeMS = logObject.remainingTimeMS; + return log; + case COMMAND_STARTED: + log = attachCommandFields(log, logObject); + log.message = 'Command started'; + log.command = stringifyWithMaxLen(logObject.command, maxDocumentLength, { relaxed: true }); + log.databaseName = logObject.databaseName; + return log; + case COMMAND_SUCCEEDED: + log = attachCommandFields(log, logObject); + log.message = 'Command succeeded'; + log.durationMS = logObject.duration; + log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true }); + return log; + case COMMAND_FAILED: + log = attachCommandFields(log, logObject); + log.message = 'Command failed'; + log.durationMS = logObject.duration; + log.failure = logObject.failure?.message ?? '(redacted)'; + return log; + case CONNECTION_POOL_CREATED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool created'; + if (logObject.options) { + const { maxIdleTimeMS, minPoolSize, maxPoolSize, maxConnecting, waitQueueTimeoutMS } = + logObject.options; + log = { + ...log, + maxIdleTimeMS, + minPoolSize, + maxPoolSize, + maxConnecting, + waitQueueTimeoutMS + }; + } + return log; + case CONNECTION_POOL_READY: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool ready'; + return log; + case CONNECTION_POOL_CLEARED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool cleared'; + if (logObject.serviceId?._bsontype === 'ObjectId') { + log.serviceId = logObject.serviceId?.toHexString(); + } + return log; + case CONNECTION_POOL_CLOSED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection pool closed'; + return log; + case CONNECTION_CREATED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection created'; + log.driverConnectionId = logObject.connectionId; + return log; + case CONNECTION_READY: + log = attachConnectionFields(log, logObject); + log.message = 'Connection ready'; + log.driverConnectionId = logObject.connectionId; + return log; + case CONNECTION_CLOSED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection closed'; + log.driverConnectionId = logObject.connectionId; + switch (logObject.reason) { + case 'stale': + log.reason = 'Connection became stale because the pool was cleared'; + break; + case 'idle': + log.reason = + 'Connection has been available but unused for longer than the configured max idle time'; + break; + case 'error': + log.reason = 'An error occurred while using the connection'; + if (logObject.error) { + log.error = logObject.error; + } + break; + case 'poolClosed': + log.reason = 'Connection pool was closed'; + break; + default: + log.reason = `Unknown close reason: ${logObject.reason}`; + } + return log; + case CONNECTION_CHECK_OUT_STARTED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checkout started'; + return log; + case CONNECTION_CHECK_OUT_FAILED: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checkout failed'; + switch (logObject.reason) { + case 'poolClosed': + log.reason = 'Connection pool was closed'; + break; + case 'timeout': + log.reason = 'Wait queue timeout elapsed without a connection becoming available'; + break; + case 'connectionError': + log.reason = 'An error occurred while trying to establish a new connection'; + if (logObject.error) { + log.error = logObject.error; + } + break; + default: + log.reason = `Unknown close reason: ${logObject.reason}`; + } + return log; + case CONNECTION_CHECKED_OUT: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checked out'; + log.driverConnectionId = logObject.connectionId; + return log; + case CONNECTION_CHECKED_IN: + log = attachConnectionFields(log, logObject); + log.message = 'Connection checked in'; + log.driverConnectionId = logObject.connectionId; + return log; + case SERVER_OPENING: + log = attachSDAMFields(log, logObject); + log = attachConnectionFields(log, logObject); + log.message = 'Starting server monitoring'; + return log; + case SERVER_CLOSED: + log = attachSDAMFields(log, logObject); + log = attachConnectionFields(log, logObject); + log.message = 'Stopped server monitoring'; + return log; + case SERVER_HEARTBEAT_STARTED: + log = attachSDAMFields(log, logObject); + log = attachServerHeartbeatFields(log, logObject); + log.message = 'Server heartbeat started'; + return log; + case SERVER_HEARTBEAT_SUCCEEDED: + log = attachSDAMFields(log, logObject); + log = attachServerHeartbeatFields(log, logObject); + log.message = 'Server heartbeat succeeded'; + log.durationMS = logObject.duration; + log.serverConnectionId = logObject.serverConnectionId; + log.reply = stringifyWithMaxLen(logObject.reply, maxDocumentLength, { relaxed: true }); + return log; + case SERVER_HEARTBEAT_FAILED: + log = attachSDAMFields(log, logObject); + log = attachServerHeartbeatFields(log, logObject); + log.message = 'Server heartbeat failed'; + log.durationMS = logObject.duration; + log.failure = logObject.failure?.message; + return log; + case TOPOLOGY_OPENING: + log = attachSDAMFields(log, logObject); + log.message = 'Starting topology monitoring'; + return log; + case TOPOLOGY_CLOSED: + log = attachSDAMFields(log, logObject); + log.message = 'Stopped topology monitoring'; + return log; + case TOPOLOGY_DESCRIPTION_CHANGED: + log = attachSDAMFields(log, logObject); + log.message = 'Topology description changed'; + log.previousDescription = log.reply = stringifyWithMaxLen( + logObject.previousDescription, + maxDocumentLength + ); + log.newDescription = log.reply = stringifyWithMaxLen( + logObject.newDescription, + maxDocumentLength + ); + return log; + default: + for (const [key, value] of Object.entries(logObject)) { + if (value != null) log[key] = value; + } + } + return log; +} + +/** @internal */ +export class MongoLogger { + componentSeverities: Record; + maxDocumentLength: number; + logDestination: MongoDBLogWritable; + logDestinationIsStdErr: boolean; + pendingLog: PromiseLike | unknown = null; + private severities: Record>; + + /** + * This method should be used when logging errors that do not have a public driver API for + * reporting errors. + */ + error = this.log.bind(this, 'error'); + /** + * This method should be used to log situations where undesirable application behaviour might + * occur. For example, failing to end sessions on `MongoClient.close`. + */ + warn = this.log.bind(this, 'warn'); + /** + * This method should be used to report high-level information about normal driver behaviour. + * For example, the creation of a `MongoClient`. + */ + info = this.log.bind(this, 'info'); + /** + * This method should be used to report information that would be helpful when debugging an + * application. For example, a command starting, succeeding or failing. + */ + debug = this.log.bind(this, 'debug'); + /** + * This method should be used to report fine-grained details related to logic flow. For example, + * entering and exiting a function body. + */ + trace = this.log.bind(this, 'trace'); + + constructor(options: MongoLoggerOptions) { + this.componentSeverities = options.componentSeverities; + this.maxDocumentLength = options.maxDocumentLength; + this.logDestination = options.logDestination; + this.logDestinationIsStdErr = options.logDestinationIsStdErr; + this.severities = this.createLoggingSeverities(); + } + + createLoggingSeverities(): Record> { + const severities = Object(); + for (const component of Object.values(MongoLoggableComponent)) { + severities[component] = {}; + for (const severityLevel of Object.values(SeverityLevel)) { + severities[component][severityLevel] = + compareSeverity(severityLevel, this.componentSeverities[component]) <= 0; + } + } + return severities; + } + + turnOffSeverities() { + for (const component of Object.values(MongoLoggableComponent)) { + this.componentSeverities[component] = SeverityLevel.OFF; + for (const severityLevel of Object.values(SeverityLevel)) { + this.severities[component][severityLevel] = false; + } + } + } + + private logWriteFailureHandler(error: Error) { + if (this.logDestinationIsStdErr) { + this.turnOffSeverities(); + this.clearPendingLog(); + return; + } + this.logDestination = createStdioLogger(process.stderr); + this.logDestinationIsStdErr = true; + this.clearPendingLog(); + this.error(MongoLoggableComponent.CLIENT, { + toLog: function () { + return { + message: 'User input for mongodbLogPath is now invalid. Logging is halted.', + error: error.message + }; + } + }); + this.turnOffSeverities(); + this.clearPendingLog(); + } + + private clearPendingLog() { + this.pendingLog = null; + } + + willLog(component: MongoLoggableComponent, severity: SeverityLevel): boolean { + if (severity === SeverityLevel.OFF) return false; + return this.severities[component][severity]; + } + + private log( + severity: SeverityLevel, + component: MongoLoggableComponent, + message: Loggable | string + ): void { + if (!this.willLog(component, severity)) return; + + let logMessage: Log = { t: new Date(), c: component, s: severity }; + if (typeof message === 'string') { + logMessage.message = message; + } else if (typeof message === 'object') { + if (isLogConvertible(message)) { + logMessage = { ...logMessage, ...message.toLog() }; + } else { + logMessage = { ...logMessage, ...defaultLogTransform(message, this.maxDocumentLength) }; + } + } + + if (isPromiseLike(this.pendingLog)) { + this.pendingLog = this.pendingLog + // eslint-disable-next-line github/no-then + .then(() => this.logDestination.write(logMessage)) + // eslint-disable-next-line github/no-then + .then(this.clearPendingLog.bind(this), this.logWriteFailureHandler.bind(this)); + return; + } + + try { + const logResult = this.logDestination.write(logMessage); + if (isPromiseLike(logResult)) { + // eslint-disable-next-line github/no-then + this.pendingLog = logResult.then( + this.clearPendingLog.bind(this), + this.logWriteFailureHandler.bind(this) + ); + } + } catch (error) { + this.logWriteFailureHandler(error); + } + } + + /** + * Merges options set through environment variables and the MongoClient, preferring environment + * variables when both are set, and substituting defaults for values not set. Options set in + * constructor take precedence over both environment variables and MongoClient options. + * + * @remarks + * When parsing component severity levels, invalid values are treated as unset and replaced with + * the default severity. + * + * @param envOptions - options set for the logger from the environment + * @param clientOptions - options set for the logger in the MongoClient options + * @returns a MongoLoggerOptions object to be used when instantiating a new MongoLogger + */ + static resolveOptions( + envOptions: MongoLoggerEnvOptions, + clientOptions: MongoLoggerMongoClientOptions + ): MongoLoggerOptions { + // client options take precedence over env options + const resolvedLogPath = resolveLogPath(envOptions, clientOptions); + const combinedOptions = { + ...envOptions, + ...clientOptions, + mongodbLogPath: resolvedLogPath.mongodbLogPath, + mongodbLogPathIsStdErr: resolvedLogPath.mongodbLogPathIsStdErr + }; + const defaultSeverity = resolveSeverityConfiguration( + combinedOptions.mongodbLogComponentSeverities?.default, + combinedOptions.MONGODB_LOG_ALL, + SeverityLevel.OFF + ); + + return { + componentSeverities: { + command: resolveSeverityConfiguration( + combinedOptions.mongodbLogComponentSeverities?.command, + combinedOptions.MONGODB_LOG_COMMAND, + defaultSeverity + ), + topology: resolveSeverityConfiguration( + combinedOptions.mongodbLogComponentSeverities?.topology, + combinedOptions.MONGODB_LOG_TOPOLOGY, + defaultSeverity + ), + serverSelection: resolveSeverityConfiguration( + combinedOptions.mongodbLogComponentSeverities?.serverSelection, + combinedOptions.MONGODB_LOG_SERVER_SELECTION, + defaultSeverity + ), + connection: resolveSeverityConfiguration( + combinedOptions.mongodbLogComponentSeverities?.connection, + combinedOptions.MONGODB_LOG_CONNECTION, + defaultSeverity + ), + client: resolveSeverityConfiguration( + combinedOptions.mongodbLogComponentSeverities?.client, + combinedOptions.MONGODB_LOG_CLIENT, + defaultSeverity + ), + default: defaultSeverity + }, + maxDocumentLength: + combinedOptions.mongodbLogMaxDocumentLength ?? + parseUnsignedInteger(combinedOptions.MONGODB_LOG_MAX_DOCUMENT_LENGTH) ?? + 1000, + logDestination: combinedOptions.mongodbLogPath, + logDestinationIsStdErr: combinedOptions.mongodbLogPathIsStdErr + }; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_types.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_types.ts new file mode 100644 index 000000000..0f878041e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/mongo_types.ts @@ -0,0 +1,630 @@ +import type { BSONType, ObjectIdLike } from 'bson'; +import { EventEmitter } from 'events'; + +import type { + Binary, + BSONRegExp, + Decimal128, + Document, + Double, + Int32, + Long, + ObjectId, + Timestamp +} from './bson'; +import { type CommandStartedEvent } from './cmap/command_monitoring_events'; +import { + type LoggableCommandFailedEvent, + type LoggableCommandSucceededEvent, + type LoggableServerHeartbeatFailedEvent, + type LoggableServerHeartbeatStartedEvent, + type LoggableServerHeartbeatSucceededEvent, + MongoLoggableComponent, + type MongoLogger +} from './mongo_logger'; +import type { Sort } from './sort'; + +/** @internal */ +export type TODO_NODE_3286 = any; + +/** Given an object shaped type, return the type of the _id field or default to ObjectId @public */ +export type InferIdType = TSchema extends { _id: infer IdType } + ? // user has defined a type for _id + Record extends IdType + ? never // explicitly forbid empty objects as the type of _id + : IdType + : TSchema extends { _id?: infer IdType } + ? // optional _id defined - return ObjectId | IdType + unknown extends IdType + ? ObjectId // infer the _id type as ObjectId if the type of _id is unknown + : IdType + : ObjectId; // user has not defined _id on schema + +/** Add an _id field to an object shaped type @public */ +export type WithId = EnhancedOmit & { _id: InferIdType }; + +/** + * Add an optional _id field to an object shaped type + * @public + */ +export type OptionalId = EnhancedOmit & { _id?: InferIdType }; + +/** + * Adds an optional _id field to an object shaped type, unless the _id field is required on that type. + * In the case _id is required, this method continues to require_id. + * + * @public + * + * @privateRemarks + * `ObjectId extends TSchema['_id']` is a confusing ordering at first glance. Rather than ask + * `TSchema['_id'] extends ObjectId` which translated to "Is the _id property ObjectId?" + * we instead ask "Does ObjectId look like (have the same shape) as the _id?" + */ +export type OptionalUnlessRequiredId = TSchema extends { _id: any } + ? TSchema + : OptionalId; + +/** TypeScript Omit (Exclude to be specific) does not work for objects with an "any" indexed type, and breaks discriminated unions @public */ +export type EnhancedOmit = string extends keyof TRecordOrUnion + ? TRecordOrUnion // TRecordOrUnion has indexed type e.g. { _id: string; [k: string]: any; } or it is "any" + : TRecordOrUnion extends any + ? Pick> // discriminated unions + : never; + +/** Remove the _id field from an object shaped type @public */ +export type WithoutId = Omit; + +/** A MongoDB filter can be some portion of the schema or a set of operators @public */ +export type Filter = { + [P in keyof WithId]?: Condition[P]>; +} & RootFilterOperators>; + +/** @public */ +export type Condition = AlternativeType | FilterOperators>; + +/** + * It is possible to search using alternative types in mongodb e.g. + * string types can be searched using a regex in mongo + * array types can be searched using their element type + * @public + */ +export type AlternativeType = T extends ReadonlyArray + ? T | RegExpOrString + : RegExpOrString; + +/** @public */ +export type RegExpOrString = T extends string ? BSONRegExp | RegExp | T : T; + +/** @public */ +export interface RootFilterOperators extends Document { + $and?: Filter[]; + $nor?: Filter[]; + $or?: Filter[]; + $text?: { + $search: string; + $language?: string; + $caseSensitive?: boolean; + $diacriticSensitive?: boolean; + }; + $where?: string | ((this: TSchema) => boolean); + $comment?: string | Document; +} + +/** + * @public + * A type that extends Document but forbids anything that "looks like" an object id. + */ +export type NonObjectIdLikeDocument = { + [key in keyof ObjectIdLike]?: never; +} & Document; + +/** @public */ +export interface FilterOperators extends NonObjectIdLikeDocument { + // Comparison + $eq?: TValue; + $gt?: TValue; + $gte?: TValue; + $in?: ReadonlyArray; + $lt?: TValue; + $lte?: TValue; + $ne?: TValue; + $nin?: ReadonlyArray; + // Logical + $not?: TValue extends string ? FilterOperators | RegExp : FilterOperators; + // Element + /** + * When `true`, `$exists` matches the documents that contain the field, + * including documents where the field value is null. + */ + $exists?: boolean; + $type?: BSONType | BSONTypeAlias; + // Evaluation + $expr?: Record; + $jsonSchema?: Record; + $mod?: TValue extends number ? [number, number] : never; + $regex?: TValue extends string ? RegExp | BSONRegExp | string : never; + $options?: TValue extends string ? string : never; + // Geospatial + $geoIntersects?: { $geometry: Document }; + $geoWithin?: Document; + $near?: Document; + $nearSphere?: Document; + $maxDistance?: number; + // Array + $all?: ReadonlyArray; + $elemMatch?: Document; + $size?: TValue extends ReadonlyArray ? number : never; + // Bitwise + $bitsAllClear?: BitwiseFilter; + $bitsAllSet?: BitwiseFilter; + $bitsAnyClear?: BitwiseFilter; + $bitsAnySet?: BitwiseFilter; + $rand?: Record; +} + +/** @public */ +export type BitwiseFilter = + | number /** numeric bit mask */ + | Binary /** BinData bit mask */ + | ReadonlyArray; /** `[ , , ... ]` */ + +/** @public */ +export type BSONTypeAlias = keyof typeof BSONType; + +/** @public */ +export type IsAny = true extends false & Type + ? ResultIfAny + : ResultIfNotAny; + +/** @public */ +export type Flatten = Type extends ReadonlyArray ? Item : Type; + +/** @public */ +export type ArrayElement = Type extends ReadonlyArray ? Item : never; + +/** @public */ +export type SchemaMember = { [P in keyof T]?: V } | { [key: string]: V }; + +/** @public */ +export type IntegerType = number | Int32 | Long | bigint; + +/** @public */ +export type NumericType = IntegerType | Decimal128 | Double; + +/** @public */ +export type FilterOperations = T extends Record + ? { [key in keyof T]?: FilterOperators } + : FilterOperators; + +/** @public */ +export type KeysOfAType = { + [key in keyof TSchema]: NonNullable extends Type ? key : never; +}[keyof TSchema]; + +/** @public */ +export type KeysOfOtherType = { + [key in keyof TSchema]: NonNullable extends Type ? never : key; +}[keyof TSchema]; + +/** @public */ +export type AcceptedFields = { + readonly [key in KeysOfAType]?: AssignableType; +}; + +/** It avoids using fields with not acceptable types @public */ +export type NotAcceptedFields = { + readonly [key in KeysOfOtherType]?: never; +}; + +/** @public */ +export type OnlyFieldsOfType = IsAny< + TSchema[keyof TSchema], + AssignableType extends FieldType ? Record : Record, + AcceptedFields & + NotAcceptedFields & + Record +>; + +/** @public */ +export type MatchKeysAndValues = Readonly> & Record; + +/** @public */ +export type AddToSetOperators = { + $each?: Array>; +}; + +/** @public */ +export type ArrayOperator = { + $each?: Array>; + $slice?: number; + $position?: number; + $sort?: Sort; +}; + +/** @public */ +export type SetFields = ({ + readonly [key in KeysOfAType | undefined>]?: + | OptionalId> + | AddToSetOperators>>>; +} & IsAny< + TSchema[keyof TSchema], + object, + NotAcceptedFields | undefined> +>) & { + readonly [key: string]: AddToSetOperators | any; +}; + +/** @public */ +export type PushOperator = ({ + readonly [key in KeysOfAType>]?: + | Flatten + | ArrayOperator>>; +} & NotAcceptedFields>) & { + readonly [key: string]: ArrayOperator | any; +}; + +/** @public */ +export type PullOperator = ({ + readonly [key in KeysOfAType>]?: + | Partial> + | FilterOperations>; +} & NotAcceptedFields>) & { + readonly [key: string]: FilterOperators | any; +}; + +/** @public */ +export type PullAllOperator = ({ + readonly [key in KeysOfAType>]?: TSchema[key]; +} & NotAcceptedFields>) & { + readonly [key: string]: ReadonlyArray; +}; + +/** @public */ +export type UpdateFilter = { + $currentDate?: OnlyFieldsOfType< + TSchema, + Date | Timestamp, + true | { $type: 'date' | 'timestamp' } + >; + $inc?: OnlyFieldsOfType; + $min?: MatchKeysAndValues; + $max?: MatchKeysAndValues; + $mul?: OnlyFieldsOfType; + $rename?: Record; + $set?: MatchKeysAndValues; + $setOnInsert?: MatchKeysAndValues; + $unset?: OnlyFieldsOfType; + $addToSet?: SetFields; + $pop?: OnlyFieldsOfType, 1 | -1>; + $pull?: PullOperator; + $push?: PushOperator; + $pullAll?: PullAllOperator; + $bit?: OnlyFieldsOfType< + TSchema, + NumericType | undefined, + { and: IntegerType } | { or: IntegerType } | { xor: IntegerType } + >; +} & Document; + +/** @public */ +export type Nullable = AnyType | null | undefined; + +/** @public */ +export type OneOrMore = T | ReadonlyArray; + +/** @public */ +export type GenericListener = (...args: any[]) => void; + +/** + * Event description type + * @public + */ +export type EventsDescription = Record; + +/** @public */ +export type CommonEvents = 'newListener' | 'removeListener'; + +/** + * Typescript type safe event emitter + * @public + */ +export declare interface TypedEventEmitter extends EventEmitter { + addListener(event: EventKey, listener: Events[EventKey]): this; + addListener( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + addListener(event: string | symbol, listener: GenericListener): this; + + on(event: EventKey, listener: Events[EventKey]): this; + on( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + on(event: string | symbol, listener: GenericListener): this; + + once(event: EventKey, listener: Events[EventKey]): this; + once( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + once(event: string | symbol, listener: GenericListener): this; + + removeListener(event: EventKey, listener: Events[EventKey]): this; + removeListener( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + removeListener(event: string | symbol, listener: GenericListener): this; + + off(event: EventKey, listener: Events[EventKey]): this; + off( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + off(event: string | symbol, listener: GenericListener): this; + + removeAllListeners( + event?: EventKey | CommonEvents | symbol | string + ): this; + + listeners( + event: EventKey | CommonEvents | symbol | string + ): Events[EventKey][]; + + rawListeners( + event: EventKey | CommonEvents | symbol | string + ): Events[EventKey][]; + + emit( + event: EventKey | symbol, + ...args: Parameters + ): boolean; + + listenerCount( + type: EventKey | CommonEvents | symbol | string + ): number; + + prependListener(event: EventKey, listener: Events[EventKey]): this; + prependListener( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + prependListener(event: string | symbol, listener: GenericListener): this; + + prependOnceListener( + event: EventKey, + listener: Events[EventKey] + ): this; + prependOnceListener( + event: CommonEvents, + listener: (eventName: string | symbol, listener: GenericListener) => void + ): this; + prependOnceListener(event: string | symbol, listener: GenericListener): this; + + eventNames(): string[]; + getMaxListeners(): number; + setMaxListeners(n: number): this; +} + +/** + * Typescript type safe event emitter + * @public + */ + +export class TypedEventEmitter extends EventEmitter { + /** @internal */ + protected mongoLogger?: MongoLogger; + /** @internal */ + protected component?: MongoLoggableComponent; + /** @internal */ + emitAndLog( + event: EventKey | symbol, + ...args: Parameters + ): void { + this.emit(event, ...args); + if (this.component) this.mongoLogger?.debug(this.component, args[0]); + } + /** @internal */ + emitAndLogHeartbeat( + event: EventKey | symbol, + topologyId: number, + serverConnectionId?: number | '', + ...args: Parameters + ): void { + this.emit(event, ...args); + if (this.component) { + const loggableHeartbeatEvent: + | LoggableServerHeartbeatFailedEvent + | LoggableServerHeartbeatSucceededEvent + | LoggableServerHeartbeatStartedEvent = { + topologyId: topologyId, + serverConnectionId: serverConnectionId ?? null, + ...args[0] + }; + this.mongoLogger?.debug(this.component, loggableHeartbeatEvent); + } + } + /** @internal */ + emitAndLogCommand( + monitorCommands: boolean, + event: EventKey | symbol, + databaseName: string, + connectionEstablished: boolean, + ...args: Parameters + ): void { + if (monitorCommands) { + this.emit(event, ...args); + } + if (connectionEstablished) { + const loggableCommandEvent: + | CommandStartedEvent + | LoggableCommandFailedEvent + | LoggableCommandSucceededEvent = { + databaseName: databaseName, + ...args[0] + }; + this.mongoLogger?.debug(MongoLoggableComponent.COMMAND, loggableCommandEvent); + } + } +} + +/** @public */ +export class CancellationToken extends TypedEventEmitter<{ cancel(): void }> {} + +/** + * Helper types for dot-notation filter attributes + */ + +/** @public */ +export type Join = T extends [] + ? '' + : T extends [string | number] + ? `${T[0]}` + : T extends [string | number, ...infer R] + ? `${T[0]}${D}${Join}` + : string; + +/** @public */ +export type PropertyType = string extends Property + ? unknown + : Property extends keyof Type + ? Type[Property] + : Property extends `${number}` + ? Type extends ReadonlyArray + ? ArrayType + : unknown + : Property extends `${infer Key}.${infer Rest}` + ? Key extends `${number}` + ? Type extends ReadonlyArray + ? PropertyType + : unknown + : Key extends keyof Type + ? Type[Key] extends Map + ? MapType + : PropertyType + : unknown + : unknown; + +/** + * @public + * returns tuple of strings (keys to be joined on '.') that represent every path into a schema + * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/ + * + * @remarks + * Through testing we determined that a depth of 8 is safe for the typescript compiler + * and provides reasonable compilation times. This number is otherwise not special and + * should be changed if issues are found with this level of checking. Beyond this + * depth any helpers that make use of NestedPaths should devolve to not asserting any + * type safety on the input. + */ +export type NestedPaths = Depth['length'] extends 8 + ? [] + : Type extends + | string + | number + | bigint + | boolean + | Date + | RegExp + | Buffer + | Uint8Array + | ((...args: any[]) => any) + | { _bsontype: string } + ? [] + : Type extends ReadonlyArray + ? [] | [number, ...NestedPaths] + : Type extends Map + ? [string] + : Type extends object + ? { + [Key in Extract]: Type[Key] extends Type // type of value extends the parent + ? [Key] + : // for a recursive union type, the child will never extend the parent type. + // but the parent will still extend the child + Type extends Type[Key] + ? [Key] + : Type[Key] extends ReadonlyArray // handling recursive types with arrays + ? Type extends ArrayType // is the type of the parent the same as the type of the array? + ? [Key] // yes, it's a recursive array type + : // for unions, the child type extends the parent + ArrayType extends Type + ? [Key] // we have a recursive array union + : // child is an array, but it's not a recursive array + [Key, ...NestedPaths] + : // child is not structured the same as the parent + [Key, ...NestedPaths] | [Key]; + }[Extract] + : []; + +/** + * @public + * returns keys (strings) for every path into a schema with a value of type + * https://www.mongodb.com/docs/manual/tutorial/query-embedded-documents/ + */ +export type NestedPathsOfType = KeysOfAType< + { + [Property in Join, '.'>]: PropertyType; + }, + Type +>; + +/** + * @public + * @experimental + */ +export type StrictFilter = + | Partial + | ({ + [Property in Join, []>, '.'>]?: Condition< + PropertyType, Property> + >; + } & RootFilterOperators>); + +/** + * @public + * @experimental + */ +export type StrictUpdateFilter = { + $currentDate?: OnlyFieldsOfType< + TSchema, + Date | Timestamp, + true | { $type: 'date' | 'timestamp' } + >; + $inc?: OnlyFieldsOfType; + $min?: StrictMatchKeysAndValues; + $max?: StrictMatchKeysAndValues; + $mul?: OnlyFieldsOfType; + $rename?: Record; + $set?: StrictMatchKeysAndValues; + $setOnInsert?: StrictMatchKeysAndValues; + $unset?: OnlyFieldsOfType; + $addToSet?: SetFields; + $pop?: OnlyFieldsOfType, 1 | -1>; + $pull?: PullOperator; + $push?: PushOperator; + $pullAll?: PullAllOperator; + $bit?: OnlyFieldsOfType< + TSchema, + NumericType | undefined, + { and: IntegerType } | { or: IntegerType } | { xor: IntegerType } + >; +} & Document; + +/** + * @public + * @experimental + */ +export type StrictMatchKeysAndValues = Readonly< + { + [Property in Join, '.'>]?: PropertyType; + } & { + [Property in `${NestedPathsOfType}.$${`[${string}]` | ''}`]?: ArrayElement< + PropertyType + >; + } & { + [Property in `${NestedPathsOfType[]>}.$${ + | `[${string}]` + | ''}.${string}`]?: any; // Could be further narrowed + } & Document +>; diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/aggregate.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/aggregate.ts new file mode 100644 index 000000000..a3a9349c2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/aggregate.ts @@ -0,0 +1,147 @@ +import type { Document } from '../bson'; +import { MongoInvalidArgumentError } from '../error'; +import { type TODO_NODE_3286 } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { maxWireVersion, type MongoDBNamespace } from '../utils'; +import { WriteConcern } from '../write_concern'; +import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects, type Hint } from './operation'; + +/** @internal */ +export const DB_AGGREGATE_COLLECTION = 1 as const; +const MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT = 8 as const; + +/** @public */ +export interface AggregateOptions extends CommandOperationOptions { + /** allowDiskUse lets the server know if it can use disk to store temporary results for the aggregation (requires mongodb 2.6 \>). */ + allowDiskUse?: boolean; + /** The number of documents to return per batch. See [aggregation documentation](https://www.mongodb.com/docs/manual/reference/command/aggregate). */ + batchSize?: number; + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** Return the query as cursor, on 2.6 \> it returns as a real cursor on pre 2.6 it returns as an emulated cursor. */ + cursor?: Document; + /** specifies a cumulative time limit in milliseconds for processing operations on the cursor. MongoDB interrupts the operation at the earliest following interrupt point. */ + maxTimeMS?: number; + /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. */ + maxAwaitTimeMS?: number; + /** Specify collation. */ + collation?: CollationOptions; + /** Add an index selection hint to an aggregation command */ + hint?: Hint; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + + out?: string; +} + +/** @internal */ +export class AggregateOperation extends CommandOperation { + override options: AggregateOptions; + target: string | typeof DB_AGGREGATE_COLLECTION; + pipeline: Document[]; + hasWriteStage: boolean; + + constructor(ns: MongoDBNamespace, pipeline: Document[], options?: AggregateOptions) { + super(undefined, { ...options, dbName: ns.db }); + + this.options = { ...options }; + + // Covers when ns.collection is null, undefined or the empty string, use DB_AGGREGATE_COLLECTION + this.target = ns.collection || DB_AGGREGATE_COLLECTION; + + this.pipeline = pipeline; + + // determine if we have a write stage, override read preference if so + this.hasWriteStage = false; + if (typeof options?.out === 'string') { + this.pipeline = this.pipeline.concat({ $out: options.out }); + this.hasWriteStage = true; + } else if (pipeline.length > 0) { + const finalStage = pipeline[pipeline.length - 1]; + if (finalStage.$out || finalStage.$merge) { + this.hasWriteStage = true; + } + } + + if (this.hasWriteStage) { + this.trySecondaryWrite = true; + } else { + delete this.options.writeConcern; + } + + if (this.explain && this.writeConcern) { + throw new MongoInvalidArgumentError( + 'Option "explain" cannot be used on an aggregate call with writeConcern' + ); + } + + if (options?.cursor != null && typeof options.cursor !== 'object') { + throw new MongoInvalidArgumentError('Cursor options must be an object'); + } + } + + override get commandName() { + return 'aggregate' as const; + } + + override get canRetryRead(): boolean { + return !this.hasWriteStage; + } + + addToPipeline(stage: Document): void { + this.pipeline.push(stage); + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const options: AggregateOptions = this.options; + const serverWireVersion = maxWireVersion(server); + const command: Document = { aggregate: this.target, pipeline: this.pipeline }; + + if (this.hasWriteStage && serverWireVersion < MIN_WIRE_VERSION_$OUT_READ_CONCERN_SUPPORT) { + this.readConcern = undefined; + } + + if (this.hasWriteStage && this.writeConcern) { + WriteConcern.apply(command, this.writeConcern); + } + + if (options.bypassDocumentValidation === true) { + command.bypassDocumentValidation = options.bypassDocumentValidation; + } + + if (typeof options.allowDiskUse === 'boolean') { + command.allowDiskUse = options.allowDiskUse; + } + + if (options.hint) { + command.hint = options.hint; + } + + if (options.let) { + command.let = options.let; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + + command.cursor = options.cursor || {}; + if (options.batchSize && !this.hasWriteStage) { + command.cursor.batchSize = options.batchSize; + } + + const res: TODO_NODE_3286 = await super.executeCommand(server, session, command); + return res; + } +} + +defineAspects(AggregateOperation, [ + Aspect.READ_OPERATION, + Aspect.RETRYABLE, + Aspect.EXPLAINABLE, + Aspect.CURSOR_CREATING +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/bulk_write.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/bulk_write.ts new file mode 100644 index 000000000..58a143f20 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/bulk_write.ts @@ -0,0 +1,58 @@ +import type { + AnyBulkWriteOperation, + BulkOperationBase, + BulkWriteOptions, + BulkWriteResult +} from '../bulk/common'; +import type { Collection } from '../collection'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { AbstractOperation, Aspect, defineAspects } from './operation'; + +/** @internal */ +export class BulkWriteOperation extends AbstractOperation { + override options: BulkWriteOptions; + collection: Collection; + operations: AnyBulkWriteOperation[]; + + constructor( + collection: Collection, + operations: AnyBulkWriteOperation[], + options: BulkWriteOptions + ) { + super(options); + this.options = options; + this.collection = collection; + this.operations = operations; + } + + override get commandName() { + return 'bulkWrite' as const; + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const coll = this.collection; + const operations = this.operations; + const options = { ...this.options, ...this.bsonOptions, readPreference: this.readPreference }; + + // Create the bulk operation + const bulk: BulkOperationBase = + options.ordered === false + ? coll.initializeUnorderedBulkOp(options) + : coll.initializeOrderedBulkOp(options); + + // for each op go through and add to the bulk + for (let i = 0; i < operations.length; i++) { + bulk.raw(operations[i]); + } + + // Execute the bulk + const result = await bulk.execute({ ...options, session }); + return result; + } +} + +defineAspects(BulkWriteOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/collections.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/collections.ts new file mode 100644 index 000000000..5ed962968 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/collections.ts @@ -0,0 +1,47 @@ +import { Collection } from '../collection'; +import type { Db } from '../db'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { AbstractOperation, type OperationOptions } from './operation'; + +export interface CollectionsOptions extends OperationOptions { + nameOnly?: boolean; +} + +/** @internal */ +export class CollectionsOperation extends AbstractOperation { + override options: CollectionsOptions; + db: Db; + + constructor(db: Db, options: CollectionsOptions) { + super(options); + this.options = options; + this.db = db; + } + + override get commandName() { + return 'listCollections' as const; + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + // Let's get the collection names + const documents = await this.db + .listCollections( + {}, + { ...this.options, nameOnly: true, readPreference: this.readPreference, session } + ) + .toArray(); + const collections: Collection[] = []; + for (const { name } of documents) { + if (!name.includes('$')) { + // Filter collections removing any illegal ones + collections.push(new Collection(this.db, name, this.db.s.options)); + } + } + // Return the collection objects + return collections; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/command.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/command.ts new file mode 100644 index 000000000..fbcafe3f8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/command.ts @@ -0,0 +1,157 @@ +import type { BSONSerializeOptions, Document } from '../bson'; +import { MongoInvalidArgumentError } from '../error'; +import { Explain, type ExplainOptions } from '../explain'; +import { ReadConcern } from '../read_concern'; +import type { ReadPreference } from '../read_preference'; +import type { Server } from '../sdam/server'; +import { MIN_SECONDARY_WRITE_WIRE_VERSION } from '../sdam/server_selection'; +import type { ClientSession } from '../sessions'; +import { + commandSupportsReadConcern, + decorateWithExplain, + maxWireVersion, + MongoDBNamespace +} from '../utils'; +import { WriteConcern, type WriteConcernOptions } from '../write_concern'; +import type { ReadConcernLike } from './../read_concern'; +import { AbstractOperation, Aspect, type OperationOptions } from './operation'; + +/** @public */ +export interface CollationOptions { + locale: string; + caseLevel?: boolean; + caseFirst?: string; + strength?: number; + numericOrdering?: boolean; + alternate?: string; + maxVariable?: string; + backwards?: boolean; + normalization?: boolean; +} + +/** @public */ +export interface CommandOperationOptions + extends OperationOptions, + WriteConcernOptions, + ExplainOptions { + /** Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported) */ + readConcern?: ReadConcernLike; + /** Collation */ + collation?: CollationOptions; + maxTimeMS?: number; + /** + * Comment to apply to the operation. + * + * In server versions pre-4.4, 'comment' must be string. A server + * error will be thrown if any other type is provided. + * + * In server versions 4.4 and above, 'comment' can be any valid BSON type. + */ + comment?: unknown; + /** Should retry failed writes */ + retryWrites?: boolean; + + // Admin command overrides. + dbName?: string; + authdb?: string; + noResponse?: boolean; +} + +/** @internal */ +export interface OperationParent { + s: { namespace: MongoDBNamespace }; + readConcern?: ReadConcern; + writeConcern?: WriteConcern; + readPreference?: ReadPreference; + bsonOptions?: BSONSerializeOptions; +} + +/** @internal */ +export abstract class CommandOperation extends AbstractOperation { + override options: CommandOperationOptions; + readConcern?: ReadConcern; + writeConcern?: WriteConcern; + explain?: Explain; + + constructor(parent?: OperationParent, options?: CommandOperationOptions) { + super(options); + this.options = options ?? {}; + + // NOTE: this was explicitly added for the add/remove user operations, it's likely + // something we'd want to reconsider. Perhaps those commands can use `Admin` + // as a parent? + const dbNameOverride = options?.dbName || options?.authdb; + if (dbNameOverride) { + this.ns = new MongoDBNamespace(dbNameOverride, '$cmd'); + } else { + this.ns = parent + ? parent.s.namespace.withCollection('$cmd') + : new MongoDBNamespace('admin', '$cmd'); + } + + this.readConcern = ReadConcern.fromOptions(options); + this.writeConcern = WriteConcern.fromOptions(options); + + if (this.hasAspect(Aspect.EXPLAINABLE)) { + this.explain = Explain.fromOptions(options); + } else if (options?.explain != null) { + throw new MongoInvalidArgumentError(`Option "explain" is not supported on this command`); + } + } + + override get canRetryWrite(): boolean { + if (this.hasAspect(Aspect.EXPLAINABLE)) { + return this.explain == null; + } + return true; + } + + async executeCommand( + server: Server, + session: ClientSession | undefined, + cmd: Document + ): Promise { + // TODO: consider making this a non-enumerable property + this.server = server; + + const options = { + ...this.options, + ...this.bsonOptions, + readPreference: this.readPreference, + session + }; + + const serverWireVersion = maxWireVersion(server); + const inTransaction = this.session && this.session.inTransaction(); + + if (this.readConcern && commandSupportsReadConcern(cmd) && !inTransaction) { + Object.assign(cmd, { readConcern: this.readConcern }); + } + + if (this.trySecondaryWrite && serverWireVersion < MIN_SECONDARY_WRITE_WIRE_VERSION) { + options.omitReadPreference = true; + } + + if (this.writeConcern && this.hasAspect(Aspect.WRITE_OPERATION) && !inTransaction) { + WriteConcern.apply(cmd, this.writeConcern); + } + + if ( + options.collation && + typeof options.collation === 'object' && + !this.hasAspect(Aspect.SKIP_COLLATION) + ) { + Object.assign(cmd, { collation: options.collation }); + } + + if (typeof options.maxTimeMS === 'number') { + cmd.maxTimeMS = options.maxTimeMS; + } + + if (this.hasAspect(Aspect.EXPLAINABLE) && this.explain) { + cmd = decorateWithExplain(cmd, this.explain); + } + + return await server.command(this.ns, cmd, options); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/count.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/count.ts new file mode 100644 index 000000000..00aae5017 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/count.ts @@ -0,0 +1,67 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import type { MongoDBNamespace } from '../utils'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface CountOptions extends CommandOperationOptions { + /** The number of documents to skip. */ + skip?: number; + /** The maximum amounts to count before aborting. */ + limit?: number; + /** Number of milliseconds to wait before aborting the query. */ + maxTimeMS?: number; + /** An index name hint for the query. */ + hint?: string | Document; +} + +/** @internal */ +export class CountOperation extends CommandOperation { + override options: CountOptions; + collectionName?: string; + query: Document; + + constructor(namespace: MongoDBNamespace, filter: Document, options: CountOptions) { + super({ s: { namespace: namespace } } as unknown as Collection, options); + + this.options = options; + this.collectionName = namespace.collection; + this.query = filter; + } + + override get commandName() { + return 'count' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const options = this.options; + const cmd: Document = { + count: this.collectionName, + query: this.query + }; + + if (typeof options.limit === 'number') { + cmd.limit = options.limit; + } + + if (typeof options.skip === 'number') { + cmd.skip = options.skip; + } + + if (options.hint != null) { + cmd.hint = options.hint; + } + + if (typeof options.maxTimeMS === 'number') { + cmd.maxTimeMS = options.maxTimeMS; + } + + const result = await super.executeCommand(server, session, cmd); + return result ? result.n : 0; + } +} + +defineAspects(CountOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/count_documents.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/count_documents.ts new file mode 100644 index 000000000..11fb0c3db --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/count_documents.ts @@ -0,0 +1,46 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { AggregateOperation, type AggregateOptions } from './aggregate'; + +/** @public */ +export interface CountDocumentsOptions extends AggregateOptions { + /** The number of documents to skip. */ + skip?: number; + /** The maximum amounts to count before aborting. */ + limit?: number; +} + +/** @internal */ +export class CountDocumentsOperation extends AggregateOperation { + constructor(collection: Collection, query: Document, options: CountDocumentsOptions) { + const pipeline = []; + pipeline.push({ $match: query }); + + if (typeof options.skip === 'number') { + pipeline.push({ $skip: options.skip }); + } + + if (typeof options.limit === 'number') { + pipeline.push({ $limit: options.limit }); + } + + pipeline.push({ $group: { _id: 1, n: { $sum: 1 } } }); + + super(collection.s.namespace, pipeline, options); + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const result = await super.execute(server, session); + + // NOTE: We're avoiding creating a cursor here to reduce the callstack. + const response = result as unknown as Document; + if (response.cursor == null || response.cursor.firstBatch == null) { + return 0; + } + + const docs = response.cursor.firstBatch; + return docs.length ? docs[0].n : 0; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/create_collection.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/create_collection.ts new file mode 100644 index 000000000..8edc7e9a1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/create_collection.ts @@ -0,0 +1,206 @@ +import type { Document } from '../bson'; +import { + MIN_SUPPORTED_QE_SERVER_VERSION, + MIN_SUPPORTED_QE_WIRE_VERSION +} from '../cmap/wire_protocol/constants'; +import { Collection } from '../collection'; +import type { Db } from '../db'; +import { MongoCompatibilityError } from '../error'; +import type { PkFactory } from '../mongo_client'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { CreateIndexesOperation } from './indexes'; +import { Aspect, defineAspects } from './operation'; + +const ILLEGAL_COMMAND_FIELDS = new Set([ + 'w', + 'wtimeout', + 'j', + 'fsync', + 'autoIndexId', + 'pkFactory', + 'raw', + 'readPreference', + 'session', + 'readConcern', + 'writeConcern', + 'raw', + 'fieldsAsRaw', + 'useBigInt64', + 'promoteLongs', + 'promoteValues', + 'promoteBuffers', + 'bsonRegExp', + 'serializeFunctions', + 'ignoreUndefined', + 'enableUtf8Validation' +]); + +/** @public + * Configuration options for timeseries collections + * @see https://www.mongodb.com/docs/manual/core/timeseries-collections/ + */ +export interface TimeSeriesCollectionOptions extends Document { + timeField: string; + metaField?: string; + granularity?: 'seconds' | 'minutes' | 'hours' | string; + bucketMaxSpanSeconds?: number; + bucketRoundingSeconds?: number; +} + +/** @public + * Configuration options for clustered collections + * @see https://www.mongodb.com/docs/manual/core/clustered-collections/ + */ +export interface ClusteredCollectionOptions extends Document { + name?: string; + key: Document; + unique: boolean; +} + +/** @public */ +export interface CreateCollectionOptions extends CommandOperationOptions { + /** Create a capped collection */ + capped?: boolean; + /** @deprecated Create an index on the _id field of the document. This option is deprecated in MongoDB 3.2+ and will be removed once no longer supported by the server. */ + autoIndexId?: boolean; + /** The size of the capped collection in bytes */ + size?: number; + /** The maximum number of documents in the capped collection */ + max?: number; + /** Available for the MMAPv1 storage engine only to set the usePowerOf2Sizes and the noPadding flag */ + flags?: number; + /** Allows users to specify configuration to the storage engine on a per-collection basis when creating a collection */ + storageEngine?: Document; + /** Allows users to specify validation rules or expressions for the collection. For more information, see Document Validation */ + validator?: Document; + /** Determines how strictly MongoDB applies the validation rules to existing documents during an update */ + validationLevel?: string; + /** Determines whether to error on invalid documents or just warn about the violations but allow invalid documents to be inserted */ + validationAction?: string; + /** Allows users to specify a default configuration for indexes when creating a collection */ + indexOptionDefaults?: Document; + /** The name of the source collection or view from which to create the view. The name is not the full namespace of the collection or view (i.e., does not include the database name and implies the same database as the view to create) */ + viewOn?: string; + /** An array that consists of the aggregation pipeline stage. Creates the view by applying the specified pipeline to the viewOn collection or view */ + pipeline?: Document[]; + /** A primary key factory function for generation of custom _id keys. */ + pkFactory?: PkFactory; + /** A document specifying configuration options for timeseries collections. */ + timeseries?: TimeSeriesCollectionOptions; + /** A document specifying configuration options for clustered collections. For MongoDB 5.3 and above. */ + clusteredIndex?: ClusteredCollectionOptions; + /** The number of seconds after which a document in a timeseries or clustered collection expires. */ + expireAfterSeconds?: number; + /** @experimental */ + encryptedFields?: Document; + /** + * If set, enables pre-update and post-update document events to be included for any + * change streams that listen on this collection. + */ + changeStreamPreAndPostImages?: { enabled: boolean }; +} + +/* @internal */ +const INVALID_QE_VERSION = + 'Driver support of Queryable Encryption is incompatible with server. Upgrade server to use Queryable Encryption.'; + +/** @internal */ +export class CreateCollectionOperation extends CommandOperation { + override options: CreateCollectionOptions; + db: Db; + name: string; + + constructor(db: Db, name: string, options: CreateCollectionOptions = {}) { + super(db, options); + + this.options = options; + this.db = db; + this.name = name; + } + + override get commandName() { + return 'create' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const db = this.db; + const name = this.name; + const options = this.options; + + const encryptedFields: Document | undefined = + options.encryptedFields ?? + db.client.options.autoEncryption?.encryptedFieldsMap?.[`${db.databaseName}.${name}`]; + + if (encryptedFields) { + // Creating a QE collection required min server of 7.0.0 + // TODO(NODE-5353): Get wire version information from connection. + if ( + !server.loadBalanced && + server.description.maxWireVersion < MIN_SUPPORTED_QE_WIRE_VERSION + ) { + throw new MongoCompatibilityError( + `${INVALID_QE_VERSION} The minimum server version required is ${MIN_SUPPORTED_QE_SERVER_VERSION}` + ); + } + // Create auxilliary collections for queryable encryption support. + const escCollection = encryptedFields.escCollection ?? `enxcol_.${name}.esc`; + const ecocCollection = encryptedFields.ecocCollection ?? `enxcol_.${name}.ecoc`; + + for (const collectionName of [escCollection, ecocCollection]) { + const createOp = new CreateCollectionOperation(db, collectionName, { + clusteredIndex: { + key: { _id: 1 }, + unique: true + } + }); + await createOp.executeWithoutEncryptedFieldsCheck(server, session); + } + + if (!options.encryptedFields) { + this.options = { ...this.options, encryptedFields }; + } + } + + const coll = await this.executeWithoutEncryptedFieldsCheck(server, session); + + if (encryptedFields) { + // Create the required index for queryable encryption support. + const createIndexOp = CreateIndexesOperation.fromIndexSpecification( + db, + name, + { __safeContent__: 1 }, + {} + ); + await createIndexOp.execute(server, session); + } + + return coll; + } + + private async executeWithoutEncryptedFieldsCheck( + server: Server, + session: ClientSession | undefined + ): Promise { + const db = this.db; + const name = this.name; + const options = this.options; + + const cmd: Document = { create: name }; + for (const n in options) { + if ( + (options as any)[n] != null && + typeof (options as any)[n] !== 'function' && + !ILLEGAL_COMMAND_FIELDS.has(n) + ) { + cmd[n] = (options as any)[n]; + } + } + // otherwise just execute the command + await super.executeCommand(server, session, cmd); + return new Collection(db, name, options); + } +} + +defineAspects(CreateCollectionOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/delete.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/delete.ts new file mode 100644 index 000000000..e952554ff --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/delete.ts @@ -0,0 +1,175 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import { MongoCompatibilityError, MongoServerError } from '../error'; +import { type TODO_NODE_3286 } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import type { MongoDBNamespace } from '../utils'; +import type { WriteConcernOptions } from '../write_concern'; +import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects, type Hint } from './operation'; + +/** @public */ +export interface DeleteOptions extends CommandOperationOptions, WriteConcernOptions { + /** If true, when an insert fails, don't execute the remaining writes. If false, continue with remaining inserts when one fails. */ + ordered?: boolean; + /** Specifies the collation to use for the operation */ + collation?: CollationOptions; + /** Specify that the update query should only consider plans using the hinted index */ + hint?: string | Document; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** @public */ +export interface DeleteResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined. */ + acknowledged: boolean; + /** The number of documents that were deleted */ + deletedCount: number; +} + +/** @public */ +export interface DeleteStatement { + /** The query that matches documents to delete. */ + q: Document; + /** The number of matching documents to delete. */ + limit: number; + /** Specifies the collation to use for the operation. */ + collation?: CollationOptions; + /** A document or string that specifies the index to use to support the query predicate. */ + hint?: Hint; +} + +/** @internal */ +export class DeleteOperation extends CommandOperation { + override options: DeleteOptions; + statements: DeleteStatement[]; + + constructor(ns: MongoDBNamespace, statements: DeleteStatement[], options: DeleteOptions) { + super(undefined, options); + this.options = options; + this.ns = ns; + this.statements = statements; + } + + override get commandName() { + return 'delete' as const; + } + + override get canRetryWrite(): boolean { + if (super.canRetryWrite === false) { + return false; + } + + return this.statements.every(op => (op.limit != null ? op.limit > 0 : true)); + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const options = this.options ?? {}; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const command: Document = { + delete: this.ns.collection, + deletes: this.statements, + ordered + }; + + if (options.let) { + command.let = options.let; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + + const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0; + if (unacknowledgedWrite) { + if (this.statements.find((o: Document) => o.hint)) { + // TODO(NODE-3541): fix error for hint with unacknowledged writes + throw new MongoCompatibilityError(`hint is not supported with unacknowledged writes`); + } + } + + const res: TODO_NODE_3286 = await super.executeCommand(server, session, command); + return res; + } +} + +export class DeleteOneOperation extends DeleteOperation { + constructor(collection: Collection, filter: Document, options: DeleteOptions) { + super(collection.s.namespace, [makeDeleteStatement(filter, { ...options, limit: 1 })], options); + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const res: TODO_NODE_3286 = await super.execute(server, session); + if (this.explain) return res; + if (res.code) throw new MongoServerError(res); + if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]); + + return { + acknowledged: this.writeConcern?.w !== 0, + deletedCount: res.n + }; + } +} +export class DeleteManyOperation extends DeleteOperation { + constructor(collection: Collection, filter: Document, options: DeleteOptions) { + super(collection.s.namespace, [makeDeleteStatement(filter, options)], options); + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const res: TODO_NODE_3286 = await super.execute(server, session); + if (this.explain) return res; + if (res.code) throw new MongoServerError(res); + if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]); + + return { + acknowledged: this.writeConcern?.w !== 0, + deletedCount: res.n + }; + } +} + +export function makeDeleteStatement( + filter: Document, + options: DeleteOptions & { limit?: number } +): DeleteStatement { + const op: DeleteStatement = { + q: filter, + limit: typeof options.limit === 'number' ? options.limit : 0 + }; + + if (options.collation) { + op.collation = options.collation; + } + + if (options.hint) { + op.hint = options.hint; + } + + return op; +} + +defineAspects(DeleteOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION]); +defineAspects(DeleteOneOperation, [ + Aspect.RETRYABLE, + Aspect.WRITE_OPERATION, + Aspect.EXPLAINABLE, + Aspect.SKIP_COLLATION +]); +defineAspects(DeleteManyOperation, [ + Aspect.WRITE_OPERATION, + Aspect.EXPLAINABLE, + Aspect.SKIP_COLLATION +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/distinct.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/distinct.ts new file mode 100644 index 000000000..4fda285d8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/distinct.ts @@ -0,0 +1,81 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { decorateWithCollation, decorateWithReadConcern } from '../utils'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export type DistinctOptions = CommandOperationOptions; + +/** + * Return a list of distinct values for the given key across a collection. + * @internal + */ +export class DistinctOperation extends CommandOperation { + override options: DistinctOptions; + collection: Collection; + /** Field of the document to find distinct values for. */ + key: string; + /** The query for filtering the set of documents to which we apply the distinct filter. */ + query: Document; + + /** + * Construct a Distinct operation. + * + * @param collection - Collection instance. + * @param key - Field of the document to find distinct values for. + * @param query - The query for filtering the set of documents to which we apply the distinct filter. + * @param options - Optional settings. See Collection.prototype.distinct for a list of options. + */ + constructor(collection: Collection, key: string, query: Document, options?: DistinctOptions) { + super(collection, options); + + this.options = options ?? {}; + this.collection = collection; + this.key = key; + this.query = query; + } + + override get commandName() { + return 'distinct' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const coll = this.collection; + const key = this.key; + const query = this.query; + const options = this.options; + + // Distinct command + const cmd: Document = { + distinct: coll.collectionName, + key: key, + query: query + }; + + // Add maxTimeMS if defined + if (typeof options.maxTimeMS === 'number') { + cmd.maxTimeMS = options.maxTimeMS; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (typeof options.comment !== 'undefined') { + cmd.comment = options.comment; + } + + // Do we have a readConcern specified + decorateWithReadConcern(cmd, coll, options); + + // Have we specified collation + decorateWithCollation(cmd, coll, options); + + const result = await super.executeCommand(server, session, cmd); + + return this.explain ? result : result.values; + } +} + +defineAspects(DistinctOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE, Aspect.EXPLAINABLE]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/drop.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/drop.ts new file mode 100644 index 000000000..15624d4c0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/drop.ts @@ -0,0 +1,106 @@ +import type { Document } from '../bson'; +import type { Db } from '../db'; +import { MONGODB_ERROR_CODES, MongoServerError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface DropCollectionOptions extends CommandOperationOptions { + /** @experimental */ + encryptedFields?: Document; +} + +/** @internal */ +export class DropCollectionOperation extends CommandOperation { + override options: DropCollectionOptions; + db: Db; + name: string; + + constructor(db: Db, name: string, options: DropCollectionOptions = {}) { + super(db, options); + this.db = db; + this.options = options; + this.name = name; + } + + override get commandName() { + return 'drop' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const db = this.db; + const options = this.options; + const name = this.name; + + const encryptedFieldsMap = db.client.options.autoEncryption?.encryptedFieldsMap; + let encryptedFields: Document | undefined = + options.encryptedFields ?? encryptedFieldsMap?.[`${db.databaseName}.${name}`]; + + if (!encryptedFields && encryptedFieldsMap) { + // If the MongoClient was configured with an encryptedFieldsMap, + // and no encryptedFields config was available in it or explicitly + // passed as an argument, the spec tells us to look one up using + // listCollections(). + const listCollectionsResult = await db + .listCollections({ name }, { nameOnly: false }) + .toArray(); + encryptedFields = listCollectionsResult?.[0]?.options?.encryptedFields; + } + + if (encryptedFields) { + const escCollection = encryptedFields.escCollection || `enxcol_.${name}.esc`; + const ecocCollection = encryptedFields.ecocCollection || `enxcol_.${name}.ecoc`; + + for (const collectionName of [escCollection, ecocCollection]) { + // Drop auxilliary collections, ignoring potential NamespaceNotFound errors. + const dropOp = new DropCollectionOperation(db, collectionName); + try { + await dropOp.executeWithoutEncryptedFieldsCheck(server, session); + } catch (err) { + if ( + !(err instanceof MongoServerError) || + err.code !== MONGODB_ERROR_CODES.NamespaceNotFound + ) { + throw err; + } + } + } + } + + return await this.executeWithoutEncryptedFieldsCheck(server, session); + } + + private async executeWithoutEncryptedFieldsCheck( + server: Server, + session: ClientSession | undefined + ): Promise { + await super.executeCommand(server, session, { drop: this.name }); + return true; + } +} + +/** @public */ +export type DropDatabaseOptions = CommandOperationOptions; + +/** @internal */ +export class DropDatabaseOperation extends CommandOperation { + override options: DropDatabaseOptions; + + constructor(db: Db, options: DropDatabaseOptions) { + super(db, options); + this.options = options; + } + override get commandName() { + return 'dropDatabase' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + await super.executeCommand(server, session, { dropDatabase: 1 }); + return true; + } +} + +defineAspects(DropCollectionOperation, [Aspect.WRITE_OPERATION]); +defineAspects(DropDatabaseOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/estimated_document_count.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/estimated_document_count.ts new file mode 100644 index 000000000..c1d6c3819 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/estimated_document_count.ts @@ -0,0 +1,56 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface EstimatedDocumentCountOptions extends CommandOperationOptions { + /** + * The maximum amount of time to allow the operation to run. + * + * This option is sent only if the caller explicitly provides a value. The default is to not send a value. + */ + maxTimeMS?: number; +} + +/** @internal */ +export class EstimatedDocumentCountOperation extends CommandOperation { + override options: EstimatedDocumentCountOptions; + collectionName: string; + + constructor(collection: Collection, options: EstimatedDocumentCountOptions = {}) { + super(collection, options); + this.options = options; + this.collectionName = collection.collectionName; + } + + override get commandName() { + return 'count' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const cmd: Document = { count: this.collectionName }; + + if (typeof this.options.maxTimeMS === 'number') { + cmd.maxTimeMS = this.options.maxTimeMS; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (this.options.comment !== undefined) { + cmd.comment = this.options.comment; + } + + const response = await super.executeCommand(server, session, cmd); + + return response?.n || 0; + } +} + +defineAspects(EstimatedDocumentCountOperation, [ + Aspect.READ_OPERATION, + Aspect.RETRYABLE, + Aspect.CURSOR_CREATING +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/execute_operation.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/execute_operation.ts new file mode 100644 index 000000000..4faf4fd95 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/execute_operation.ts @@ -0,0 +1,289 @@ +import type { Document } from '../bson'; +import { type CursorResponse } from '../cmap/wire_protocol/responses'; +import { + isRetryableReadError, + isRetryableWriteError, + MongoCompatibilityError, + MONGODB_ERROR_CODES, + MongoError, + MongoErrorLabel, + MongoExpiredSessionError, + MongoInvalidArgumentError, + MongoNetworkError, + MongoNotConnectedError, + MongoRuntimeError, + MongoServerError, + MongoTransactionError, + MongoUnexpectedServerResponseError +} from '../error'; +import type { MongoClient } from '../mongo_client'; +import { ReadPreference } from '../read_preference'; +import type { Server } from '../sdam/server'; +import type { ServerDescription } from '../sdam/server_description'; +import { + sameServerSelector, + secondaryWritableServerSelector, + type ServerSelector +} from '../sdam/server_selection'; +import type { Topology } from '../sdam/topology'; +import type { ClientSession } from '../sessions'; +import { squashError, supportsRetryableWrites } from '../utils'; +import { AbstractOperation, Aspect } from './operation'; + +const MMAPv1_RETRY_WRITES_ERROR_CODE = MONGODB_ERROR_CODES.IllegalOperation; +const MMAPv1_RETRY_WRITES_ERROR_MESSAGE = + 'This MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string.'; + +type ResultTypeFromOperation = TOperation extends AbstractOperation + ? K + : never; + +/** @internal */ +export interface ExecutionResult { + /** The server selected for the operation */ + server: Server; + /** The session used for this operation, may be implicitly created */ + session?: ClientSession; + /** The raw server response for the operation */ + response: Document | CursorResponse; +} + +/** + * Executes the given operation with provided arguments. + * @internal + * + * @remarks + * Allows for a single point of entry to provide features such as implicit sessions, which + * are required by the Driver Sessions specification in the event that a ClientSession is + * not provided. + * + * The expectation is that this function: + * - Connects the MongoClient if it has not already been connected + * - Creates a session if none is provided and cleans up the session it creates + * - Selects a server based on readPreference or various factors + * - Retries an operation if it fails for certain errors, see {@link retryOperation} + * + * @typeParam T - The operation's type + * @typeParam TResult - The type of the operation's result, calculated from T + * + * @param client - The MongoClient to execute this operation with + * @param operation - The operation to execute + */ +export async function executeOperation< + T extends AbstractOperation, + TResult = ResultTypeFromOperation +>(client: MongoClient, operation: T): Promise { + if (!(operation instanceof AbstractOperation)) { + // TODO(NODE-3483): Extend MongoRuntimeError + throw new MongoRuntimeError('This method requires a valid operation instance'); + } + + if (client.topology == null) { + // Auto connect on operation + if (client.s.hasBeenClosed) { + throw new MongoNotConnectedError('Client must be connected before running operations'); + } + client.s.options[Symbol.for('@@mdb.skipPingOnConnect')] = true; + try { + await client.connect(); + } finally { + delete client.s.options[Symbol.for('@@mdb.skipPingOnConnect')]; + } + } + + const { topology } = client; + if (topology == null) { + throw new MongoRuntimeError('client.connect did not create a topology but also did not throw'); + } + + // The driver sessions spec mandates that we implicitly create sessions for operations + // that are not explicitly provided with a session. + let session = operation.session; + let owner: symbol | undefined; + + if (session == null) { + owner = Symbol(); + session = client.startSession({ owner, explicit: false }); + } else if (session.hasEnded) { + throw new MongoExpiredSessionError('Use of expired sessions is not permitted'); + } else if (session.snapshotEnabled && !topology.capabilities.supportsSnapshotReads) { + throw new MongoCompatibilityError('Snapshot reads require MongoDB 5.0 or later'); + } else if (session.client !== client) { + throw new MongoInvalidArgumentError('ClientSession must be from the same MongoClient'); + } + if (session.explicit && session?.timeoutMS != null && operation.options.timeoutMS != null) { + throw new MongoInvalidArgumentError( + 'Do not specify timeoutMS on operation if already specified on an explicit session' + ); + } + + const readPreference = operation.readPreference ?? ReadPreference.primary; + const inTransaction = !!session?.inTransaction(); + + const hasReadAspect = operation.hasAspect(Aspect.READ_OPERATION); + const hasWriteAspect = operation.hasAspect(Aspect.WRITE_OPERATION); + + if ( + inTransaction && + !readPreference.equals(ReadPreference.primary) && + (hasReadAspect || operation.commandName === 'runCommand') + ) { + throw new MongoTransactionError( + `Read preference in a transaction must be primary, not: ${readPreference.mode}` + ); + } + + if (session?.isPinned && session.transaction.isCommitted && !operation.bypassPinningCheck) { + session.unpin(); + } + + let selector: ReadPreference | ServerSelector; + + if (operation.hasAspect(Aspect.MUST_SELECT_SAME_SERVER)) { + // GetMore and KillCursor operations must always select the same server, but run through + // server selection to potentially force monitor checks if the server is + // in an unknown state. + selector = sameServerSelector(operation.server?.description); + } else if (operation.trySecondaryWrite) { + // If operation should try to write to secondary use the custom server selector + // otherwise provide the read preference. + selector = secondaryWritableServerSelector(topology.commonWireVersion, readPreference); + } else { + selector = readPreference; + } + + const server = await topology.selectServer(selector, { + session, + operationName: operation.commandName + }); + + if (session == null) { + // No session also means it is not retryable, early exit + return await operation.execute(server, undefined); + } + + if (!operation.hasAspect(Aspect.RETRYABLE)) { + // non-retryable operation, early exit + try { + return await operation.execute(server, session); + } finally { + if (session?.owner != null && session.owner === owner) { + try { + await session.endSession(); + } catch (error) { + squashError(error); + } + } + } + } + + const willRetryRead = topology.s.options.retryReads && !inTransaction && operation.canRetryRead; + + const willRetryWrite = + topology.s.options.retryWrites && + !inTransaction && + supportsRetryableWrites(server) && + operation.canRetryWrite; + + const willRetry = (hasReadAspect && willRetryRead) || (hasWriteAspect && willRetryWrite); + + if (hasWriteAspect && willRetryWrite) { + operation.options.willRetryWrite = true; + session.incrementTransactionNumber(); + } + + try { + return await operation.execute(server, session); + } catch (operationError) { + if (willRetry && operationError instanceof MongoError) { + return await retryOperation(operation, operationError, { + session, + topology, + selector, + previousServer: server.description + }); + } + throw operationError; + } finally { + if (session?.owner != null && session.owner === owner) { + try { + await session.endSession(); + } catch (error) { + squashError(error); + } + } + } +} + +/** @internal */ +type RetryOptions = { + session: ClientSession; + topology: Topology; + selector: ReadPreference | ServerSelector; + previousServer: ServerDescription; +}; + +async function retryOperation< + T extends AbstractOperation, + TResult = ResultTypeFromOperation +>( + operation: T, + originalError: MongoError, + { session, topology, selector, previousServer }: RetryOptions +): Promise { + const isWriteOperation = operation.hasAspect(Aspect.WRITE_OPERATION); + const isReadOperation = operation.hasAspect(Aspect.READ_OPERATION); + + if (isWriteOperation && originalError.code === MMAPv1_RETRY_WRITES_ERROR_CODE) { + throw new MongoServerError({ + message: MMAPv1_RETRY_WRITES_ERROR_MESSAGE, + errmsg: MMAPv1_RETRY_WRITES_ERROR_MESSAGE, + originalError + }); + } + + if (isWriteOperation && !isRetryableWriteError(originalError)) { + throw originalError; + } + + if (isReadOperation && !isRetryableReadError(originalError)) { + throw originalError; + } + + if ( + originalError instanceof MongoNetworkError && + session.isPinned && + !session.inTransaction() && + operation.hasAspect(Aspect.CURSOR_CREATING) + ) { + // If we have a cursor and the initial command fails with a network error, + // we can retry it on another connection. So we need to check it back in, clear the + // pool for the service id, and retry again. + session.unpin({ force: true, forceClear: true }); + } + + // select a new server, and attempt to retry the operation + const server = await topology.selectServer(selector, { + session, + operationName: operation.commandName, + previousServer + }); + + if (isWriteOperation && !supportsRetryableWrites(server)) { + throw new MongoUnexpectedServerResponseError( + 'Selected server does not support retryable writes' + ); + } + + try { + return await operation.execute(server, session); + } catch (retryError) { + if ( + retryError instanceof MongoError && + retryError.hasErrorLabel(MongoErrorLabel.NoWritesPerformed) + ) { + throw originalError; + } + throw retryError; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/find.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/find.ts new file mode 100644 index 000000000..cdf1a7117 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/find.ts @@ -0,0 +1,256 @@ +import type { Document } from '../bson'; +import { MongoInvalidArgumentError } from '../error'; +import { ReadConcern } from '../read_concern'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { formatSort, type Sort } from '../sort'; +import { decorateWithExplain, type MongoDBNamespace, normalizeHintField } from '../utils'; +import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects, type Hint } from './operation'; + +/** + * @public + * @typeParam TSchema - Unused schema definition, deprecated usage, only specify `FindOptions` with no generic + */ +// eslint-disable-next-line @typescript-eslint/no-unused-vars +export interface FindOptions + extends Omit { + /** Sets the limit of documents returned in the query. */ + limit?: number; + /** Set to sort the documents coming back from the query. Array of indexes, `[['a', 1]]` etc. */ + sort?: Sort; + /** The fields to return in the query. Object of fields to either include or exclude (one of, not both), `{'a':1, 'b': 1}` **or** `{'a': 0, 'b': 0}` */ + projection?: Document; + /** Set to skip N documents ahead in your query (useful for pagination). */ + skip?: number; + /** Tell the query to use specific indexes in the query. Object of indexes to use, `{'_id':1}` */ + hint?: Hint; + /** Specify if the cursor can timeout. */ + timeout?: boolean; + /** Specify if the cursor is tailable. */ + tailable?: boolean; + /** Specify if the cursor is a tailable-await cursor. Requires `tailable` to be true */ + awaitData?: boolean; + /** Set the batchSize for the getMoreCommand when iterating over the query results. */ + batchSize?: number; + /** If true, returns only the index keys in the resulting documents. */ + returnKey?: boolean; + /** The inclusive lower bound for a specific index */ + min?: Document; + /** The exclusive upper bound for a specific index */ + max?: Document; + /** Number of milliseconds to wait before aborting the query. */ + maxTimeMS?: number; + /** The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true */ + maxAwaitTimeMS?: number; + /** The server normally times out idle cursors after an inactivity period (10 minutes) to prevent excess memory use. Set this option to prevent that. */ + noCursorTimeout?: boolean; + /** Specify collation (MongoDB 3.4 or higher) settings for update operation (see 3.4 documentation for available fields). */ + collation?: CollationOptions; + /** Allows disk use for blocking sort operations exceeding 100MB memory. (MongoDB 3.2 or higher) */ + allowDiskUse?: boolean; + /** Determines whether to close the cursor after the first batch. Defaults to false. */ + singleBatch?: boolean; + /** For queries against a sharded collection, allows the command (or subsequent getMore commands) to return partial results, rather than an error, if one or more queried shards are unavailable. */ + allowPartialResults?: boolean; + /** Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents. */ + showRecordId?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Option to enable an optimized code path for queries looking for a particular range of `ts` values in the oplog. Requires `tailable` to be true. + * @deprecated Starting from MongoDB 4.4 this flag is not needed and will be ignored. + */ + oplogReplay?: boolean; +} + +/** @internal */ +export class FindOperation extends CommandOperation { + /** + * @remarks WriteConcern can still be present on the options because + * we inherit options from the client/db/collection. The + * key must be present on the options in order to delete it. + * This allows typescript to delete the key but will + * not allow a writeConcern to be assigned as a property on options. + */ + override options: FindOptions & { writeConcern?: never }; + filter: Document; + + constructor(ns: MongoDBNamespace, filter: Document = {}, options: FindOptions = {}) { + super(undefined, options); + + this.options = { ...options }; + delete this.options.writeConcern; + this.ns = ns; + + if (typeof filter !== 'object' || Array.isArray(filter)) { + throw new MongoInvalidArgumentError('Query filter must be a plain object or ObjectId'); + } + + // special case passing in an ObjectId as a filter + this.filter = filter != null && filter._bsontype === 'ObjectId' ? { _id: filter } : filter; + } + + override get commandName() { + return 'find' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + this.server = server; + + const options = this.options; + + let findCommand = makeFindCommand(this.ns, this.filter, options); + if (this.explain) { + findCommand = decorateWithExplain(findCommand, this.explain); + } + + return await server.command( + this.ns, + findCommand, + { + ...this.options, + ...this.bsonOptions, + documentsReturnedIn: 'firstBatch', + session + }, + undefined + ); + } +} + +function makeFindCommand(ns: MongoDBNamespace, filter: Document, options: FindOptions): Document { + const findCommand: Document = { + find: ns.collection, + filter + }; + + if (options.sort) { + findCommand.sort = formatSort(options.sort); + } + + if (options.projection) { + let projection = options.projection; + if (projection && Array.isArray(projection)) { + projection = projection.length + ? projection.reduce((result, field) => { + result[field] = 1; + return result; + }, {}) + : { _id: 1 }; + } + + findCommand.projection = projection; + } + + if (options.hint) { + findCommand.hint = normalizeHintField(options.hint); + } + + if (typeof options.skip === 'number') { + findCommand.skip = options.skip; + } + + if (typeof options.limit === 'number') { + if (options.limit < 0) { + findCommand.limit = -options.limit; + findCommand.singleBatch = true; + } else { + findCommand.limit = options.limit; + } + } + + if (typeof options.batchSize === 'number') { + if (options.batchSize < 0) { + if ( + options.limit && + options.limit !== 0 && + Math.abs(options.batchSize) < Math.abs(options.limit) + ) { + findCommand.limit = -options.batchSize; + } + + findCommand.singleBatch = true; + } else { + findCommand.batchSize = options.batchSize; + } + } + + if (typeof options.singleBatch === 'boolean') { + findCommand.singleBatch = options.singleBatch; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + findCommand.comment = options.comment; + } + + if (typeof options.maxTimeMS === 'number') { + findCommand.maxTimeMS = options.maxTimeMS; + } + + const readConcern = ReadConcern.fromOptions(options); + if (readConcern) { + findCommand.readConcern = readConcern.toJSON(); + } + + if (options.max) { + findCommand.max = options.max; + } + + if (options.min) { + findCommand.min = options.min; + } + + if (typeof options.returnKey === 'boolean') { + findCommand.returnKey = options.returnKey; + } + + if (typeof options.showRecordId === 'boolean') { + findCommand.showRecordId = options.showRecordId; + } + + if (typeof options.tailable === 'boolean') { + findCommand.tailable = options.tailable; + } + + if (typeof options.oplogReplay === 'boolean') { + findCommand.oplogReplay = options.oplogReplay; + } + + if (typeof options.timeout === 'boolean') { + findCommand.noCursorTimeout = !options.timeout; + } else if (typeof options.noCursorTimeout === 'boolean') { + findCommand.noCursorTimeout = options.noCursorTimeout; + } + + if (typeof options.awaitData === 'boolean') { + findCommand.awaitData = options.awaitData; + } + + if (typeof options.allowPartialResults === 'boolean') { + findCommand.allowPartialResults = options.allowPartialResults; + } + + if (options.collation) { + findCommand.collation = options.collation; + } + + if (typeof options.allowDiskUse === 'boolean') { + findCommand.allowDiskUse = options.allowDiskUse; + } + + if (options.let) { + findCommand.let = options.let; + } + + return findCommand; +} + +defineAspects(FindOperation, [ + Aspect.READ_OPERATION, + Aspect.RETRYABLE, + Aspect.EXPLAINABLE, + Aspect.CURSOR_CREATING +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/find_and_modify.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/find_and_modify.ts new file mode 100644 index 000000000..68abe51a7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/find_and_modify.ts @@ -0,0 +1,294 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import { MongoCompatibilityError, MongoInvalidArgumentError } from '../error'; +import { ReadPreference } from '../read_preference'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { formatSort, type Sort, type SortForCmd } from '../sort'; +import { decorateWithCollation, hasAtomicOperators, maxWireVersion } from '../utils'; +import type { WriteConcern, WriteConcernSettings } from '../write_concern'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export const ReturnDocument = Object.freeze({ + BEFORE: 'before', + AFTER: 'after' +} as const); + +/** @public */ +export type ReturnDocument = (typeof ReturnDocument)[keyof typeof ReturnDocument]; + +/** @public */ +export interface FindOneAndDeleteOptions extends CommandOperationOptions { + /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/ + hint?: Document; + /** Limits the fields to return for all matching documents. */ + projection?: Document; + /** Determines which document the operation modifies if the query selects multiple documents. */ + sort?: Sort; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Return the ModifyResult instead of the modified document. Defaults to false + */ + includeResultMetadata?: boolean; +} + +/** @public */ +export interface FindOneAndReplaceOptions extends CommandOperationOptions { + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/ + hint?: Document; + /** Limits the fields to return for all matching documents. */ + projection?: Document; + /** When set to 'after', returns the updated document rather than the original. The default is 'before'. */ + returnDocument?: ReturnDocument; + /** Determines which document the operation modifies if the query selects multiple documents. */ + sort?: Sort; + /** Upsert the document if it does not exist. */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Return the ModifyResult instead of the modified document. Defaults to false + */ + includeResultMetadata?: boolean; +} + +/** @public */ +export interface FindOneAndUpdateOptions extends CommandOperationOptions { + /** Optional list of array filters referenced in filtered positional operators */ + arrayFilters?: Document[]; + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** An optional hint for query optimization. See the {@link https://www.mongodb.com/docs/manual/reference/command/update/#update-command-hint|update command} reference for more information.*/ + hint?: Document; + /** Limits the fields to return for all matching documents. */ + projection?: Document; + /** When set to 'after', returns the updated document rather than the original. The default is 'before'. */ + returnDocument?: ReturnDocument; + /** Determines which document the operation modifies if the query selects multiple documents. */ + sort?: Sort; + /** Upsert the document if it does not exist. */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; + /** + * Return the ModifyResult instead of the modified document. Defaults to false + */ + includeResultMetadata?: boolean; +} + +/** @internal */ +interface FindAndModifyCmdBase { + remove: boolean; + new: boolean; + upsert: boolean; + update?: Document; + sort?: SortForCmd; + fields?: Document; + bypassDocumentValidation?: boolean; + arrayFilters?: Document[]; + maxTimeMS?: number; + let?: Document; + writeConcern?: WriteConcern | WriteConcernSettings; + /** + * Comment to apply to the operation. + * + * In server versions pre-4.4, 'comment' must be string. A server + * error will be thrown if any other type is provided. + * + * In server versions 4.4 and above, 'comment' can be any valid BSON type. + */ + comment?: unknown; +} + +function configureFindAndModifyCmdBaseUpdateOpts( + cmdBase: FindAndModifyCmdBase, + options: FindOneAndReplaceOptions | FindOneAndUpdateOptions +): FindAndModifyCmdBase { + cmdBase.new = options.returnDocument === ReturnDocument.AFTER; + cmdBase.upsert = options.upsert === true; + + if (options.bypassDocumentValidation === true) { + cmdBase.bypassDocumentValidation = options.bypassDocumentValidation; + } + return cmdBase; +} + +/** @internal */ +export class FindAndModifyOperation extends CommandOperation { + override options: FindOneAndReplaceOptions | FindOneAndUpdateOptions | FindOneAndDeleteOptions; + cmdBase: FindAndModifyCmdBase; + collection: Collection; + query: Document; + doc?: Document; + + constructor( + collection: Collection, + query: Document, + options: FindOneAndReplaceOptions | FindOneAndUpdateOptions | FindOneAndDeleteOptions + ) { + super(collection, options); + this.options = options ?? {}; + this.cmdBase = { + remove: false, + new: false, + upsert: false + }; + + options.includeResultMetadata ??= false; + + const sort = formatSort(options.sort); + if (sort) { + this.cmdBase.sort = sort; + } + + if (options.projection) { + this.cmdBase.fields = options.projection; + } + + if (options.maxTimeMS) { + this.cmdBase.maxTimeMS = options.maxTimeMS; + } + + // Decorate the findAndModify command with the write Concern + if (options.writeConcern) { + this.cmdBase.writeConcern = options.writeConcern; + } + + if (options.let) { + this.cmdBase.let = options.let; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + this.cmdBase.comment = options.comment; + } + + // force primary read preference + this.readPreference = ReadPreference.primary; + + this.collection = collection; + this.query = query; + } + + override get commandName() { + return 'findAndModify' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const coll = this.collection; + const query = this.query; + const options = { ...this.options, ...this.bsonOptions }; + + // Create findAndModify command object + const cmd: Document = { + findAndModify: coll.collectionName, + query: query, + ...this.cmdBase + }; + + // Have we specified collation + try { + decorateWithCollation(cmd, coll, options); + } catch (err) { + return err; + } + + if (options.hint) { + // TODO: once this method becomes a CommandOperation we will have the server + // in place to check. + const unacknowledgedWrite = this.writeConcern?.w === 0; + if (unacknowledgedWrite || maxWireVersion(server) < 8) { + throw new MongoCompatibilityError( + 'The current topology does not support a hint on findAndModify commands' + ); + } + + cmd.hint = options.hint; + } + + // Execute the command + const result = await super.executeCommand(server, session, cmd); + return options.includeResultMetadata ? result : result.value ?? null; + } +} + +/** @internal */ +export class FindOneAndDeleteOperation extends FindAndModifyOperation { + constructor(collection: Collection, filter: Document, options: FindOneAndDeleteOptions) { + // Basic validation + if (filter == null || typeof filter !== 'object') { + throw new MongoInvalidArgumentError('Argument "filter" must be an object'); + } + + super(collection, filter, options); + this.cmdBase.remove = true; + } +} + +/** @internal */ +export class FindOneAndReplaceOperation extends FindAndModifyOperation { + constructor( + collection: Collection, + filter: Document, + replacement: Document, + options: FindOneAndReplaceOptions + ) { + if (filter == null || typeof filter !== 'object') { + throw new MongoInvalidArgumentError('Argument "filter" must be an object'); + } + + if (replacement == null || typeof replacement !== 'object') { + throw new MongoInvalidArgumentError('Argument "replacement" must be an object'); + } + + if (hasAtomicOperators(replacement)) { + throw new MongoInvalidArgumentError('Replacement document must not contain atomic operators'); + } + + super(collection, filter, options); + this.cmdBase.update = replacement; + configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options); + } +} + +/** @internal */ +export class FindOneAndUpdateOperation extends FindAndModifyOperation { + constructor( + collection: Collection, + filter: Document, + update: Document, + options: FindOneAndUpdateOptions + ) { + if (filter == null || typeof filter !== 'object') { + throw new MongoInvalidArgumentError('Argument "filter" must be an object'); + } + + if (update == null || typeof update !== 'object') { + throw new MongoInvalidArgumentError('Argument "update" must be an object'); + } + + if (!hasAtomicOperators(update)) { + throw new MongoInvalidArgumentError('Update document requires atomic operators'); + } + + super(collection, filter, options); + this.cmdBase.update = update; + configureFindAndModifyCmdBaseUpdateOpts(this.cmdBase, options); + + if (options.arrayFilters) { + this.cmdBase.arrayFilters = options.arrayFilters; + } + } +} + +defineAspects(FindAndModifyOperation, [ + Aspect.WRITE_OPERATION, + Aspect.RETRYABLE, + Aspect.EXPLAINABLE +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/get_more.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/get_more.ts new file mode 100644 index 000000000..05f54b0b5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/get_more.ts @@ -0,0 +1,111 @@ +import type { Document, Long } from '../bson'; +import { CursorResponse } from '../cmap/wire_protocol/responses'; +import { MongoRuntimeError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { maxWireVersion, type MongoDBNamespace } from '../utils'; +import { AbstractOperation, Aspect, defineAspects, type OperationOptions } from './operation'; + +/** @internal */ +export interface GetMoreOptions extends OperationOptions { + /** Set the batchSize for the getMoreCommand when iterating over the query results. */ + batchSize?: number; + /** + * Comment to apply to the operation. + * + * getMore only supports 'comment' in server versions 4.4 and above. + */ + comment?: unknown; + /** Number of milliseconds to wait before aborting the query. */ + maxTimeMS?: number; + /** TODO(NODE-4413): Address bug with maxAwaitTimeMS not being passed in from the cursor correctly */ + maxAwaitTimeMS?: number; + + useCursorResponse: boolean; +} + +/** + * GetMore command: https://www.mongodb.com/docs/manual/reference/command/getMore/ + * @internal + */ +export interface GetMoreCommand { + getMore: Long; + collection: string; + batchSize?: number; + maxTimeMS?: number; + /** Only supported on wire versions 10 or greater */ + comment?: unknown; +} + +/** @internal */ +export class GetMoreOperation extends AbstractOperation { + cursorId: Long; + override options: GetMoreOptions; + + constructor(ns: MongoDBNamespace, cursorId: Long, server: Server, options: GetMoreOptions) { + super(options); + + this.options = options; + this.ns = ns; + this.cursorId = cursorId; + this.server = server; + } + + override get commandName() { + return 'getMore' as const; + } + /** + * Although there is a server already associated with the get more operation, the signature + * for execute passes a server so we will just use that one. + */ + override async execute(server: Server, _session: ClientSession | undefined): Promise { + if (server !== this.server) { + throw new MongoRuntimeError('Getmore must run on the same server operation began on'); + } + + if (this.cursorId == null || this.cursorId.isZero()) { + throw new MongoRuntimeError('Unable to iterate cursor with no id'); + } + + const collection = this.ns.collection; + if (collection == null) { + // Cursors should have adopted the namespace returned by MongoDB + // which should always defined a collection name (even a pseudo one, ex. db.aggregate()) + throw new MongoRuntimeError('A collection name must be determined before getMore'); + } + + const getMoreCmd: GetMoreCommand = { + getMore: this.cursorId, + collection + }; + + if (typeof this.options.batchSize === 'number') { + getMoreCmd.batchSize = Math.abs(this.options.batchSize); + } + + if (typeof this.options.maxAwaitTimeMS === 'number') { + getMoreCmd.maxTimeMS = this.options.maxAwaitTimeMS; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (this.options.comment !== undefined && maxWireVersion(server) >= 9) { + getMoreCmd.comment = this.options.comment; + } + + const commandOptions = { + returnFieldSelector: null, + documentsReturnedIn: 'nextBatch', + ...this.options + }; + + return await server.command( + this.ns, + getMoreCmd, + commandOptions, + this.options.useCursorResponse ? CursorResponse : undefined + ); + } +} + +defineAspects(GetMoreOperation, [Aspect.READ_OPERATION, Aspect.MUST_SELECT_SAME_SERVER]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/indexes.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/indexes.ts new file mode 100644 index 000000000..8bf390f28 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/indexes.ts @@ -0,0 +1,402 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import { type AbstractCursorOptions } from '../cursor/abstract_cursor'; +import { MongoCompatibilityError } from '../error'; +import { type OneOrMore } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { isObject, maxWireVersion, type MongoDBNamespace } from '../utils'; +import { + type CollationOptions, + CommandOperation, + type CommandOperationOptions, + type OperationParent +} from './command'; +import { Aspect, defineAspects } from './operation'; + +const VALID_INDEX_OPTIONS = new Set([ + 'background', + 'unique', + 'name', + 'partialFilterExpression', + 'sparse', + 'hidden', + 'expireAfterSeconds', + 'storageEngine', + 'collation', + 'version', + + // text indexes + 'weights', + 'default_language', + 'language_override', + 'textIndexVersion', + + // 2d-sphere indexes + '2dsphereIndexVersion', + + // 2d indexes + 'bits', + 'min', + 'max', + + // geoHaystack Indexes + 'bucketSize', + + // wildcard indexes + 'wildcardProjection' +]); + +/** @public */ +export type IndexDirection = + | -1 + | 1 + | '2d' + | '2dsphere' + | 'text' + | 'geoHaystack' + | 'hashed' + | number; + +function isIndexDirection(x: unknown): x is IndexDirection { + return ( + typeof x === 'number' || x === '2d' || x === '2dsphere' || x === 'text' || x === 'geoHaystack' + ); +} +/** @public */ +export type IndexSpecification = OneOrMore< + | string + | [string, IndexDirection] + | { [key: string]: IndexDirection } + | Map +>; + +/** @public */ +export interface IndexInformationOptions extends ListIndexesOptions { + /** + * When `true`, an array of index descriptions is returned. + * When `false`, the driver returns an object that with keys corresponding to index names with values + * corresponding to the entries of the indexes' key. + * + * For example, the given the following indexes: + * ``` + * [ { name: 'a_1', key: { a: 1 } }, { name: 'b_1_c_1' , key: { b: 1, c: 1 } }] + * ``` + * + * When `full` is `true`, the above array is returned. When `full` is `false`, the following is returned: + * ``` + * { + * 'a_1': [['a', 1]], + * 'b_1_c_1': [['b', 1], ['c', 1]], + * } + * ``` + */ + full?: boolean; +} + +/** @public */ +export interface IndexDescription + extends Pick< + CreateIndexesOptions, + | 'background' + | 'unique' + | 'partialFilterExpression' + | 'sparse' + | 'hidden' + | 'expireAfterSeconds' + | 'storageEngine' + | 'version' + | 'weights' + | 'default_language' + | 'language_override' + | 'textIndexVersion' + | '2dsphereIndexVersion' + | 'bits' + | 'min' + | 'max' + | 'bucketSize' + | 'wildcardProjection' + > { + collation?: CollationOptions; + name?: string; + key: { [key: string]: IndexDirection } | Map; +} + +/** @public */ +export interface CreateIndexesOptions extends Omit { + /** Creates the index in the background, yielding whenever possible. */ + background?: boolean; + /** Creates an unique index. */ + unique?: boolean; + /** Override the autogenerated index name (useful if the resulting name is larger than 128 bytes) */ + name?: string; + /** Creates a partial index based on the given filter object (MongoDB 3.2 or higher) */ + partialFilterExpression?: Document; + /** Creates a sparse index. */ + sparse?: boolean; + /** Allows you to expire data on indexes applied to a data (MongoDB 2.2 or higher) */ + expireAfterSeconds?: number; + /** Allows users to configure the storage engine on a per-index basis when creating an index. (MongoDB 3.0 or higher) */ + storageEngine?: Document; + /** (MongoDB 4.4. or higher) Specifies how many data-bearing members of a replica set, including the primary, must complete the index builds successfully before the primary marks the indexes as ready. This option accepts the same values for the "w" field in a write concern plus "votingMembers", which indicates all voting data-bearing nodes. */ + commitQuorum?: number | string; + /** Specifies the index version number, either 0 or 1. */ + version?: number; + // text indexes + weights?: Document; + default_language?: string; + language_override?: string; + textIndexVersion?: number; + // 2d-sphere indexes + '2dsphereIndexVersion'?: number; + // 2d indexes + bits?: number; + /** For geospatial indexes set the lower bound for the co-ordinates. */ + min?: number; + /** For geospatial indexes set the high bound for the co-ordinates. */ + max?: number; + // geoHaystack Indexes + bucketSize?: number; + // wildcard indexes + wildcardProjection?: Document; + /** Specifies that the index should exist on the target collection but should not be used by the query planner when executing operations. (MongoDB 4.4 or higher) */ + hidden?: boolean; +} + +function isSingleIndexTuple(t: unknown): t is [string, IndexDirection] { + return Array.isArray(t) && t.length === 2 && isIndexDirection(t[1]); +} + +/** + * Converts an `IndexSpecification`, which can be specified in multiple formats, into a + * valid `key` for the createIndexes command. + */ +function constructIndexDescriptionMap(indexSpec: IndexSpecification): Map { + const key: Map = new Map(); + + const indexSpecs = + !Array.isArray(indexSpec) || isSingleIndexTuple(indexSpec) ? [indexSpec] : indexSpec; + + // Iterate through array and handle different types + for (const spec of indexSpecs) { + if (typeof spec === 'string') { + key.set(spec, 1); + } else if (Array.isArray(spec)) { + key.set(spec[0], spec[1] ?? 1); + } else if (spec instanceof Map) { + for (const [property, value] of spec) { + key.set(property, value); + } + } else if (isObject(spec)) { + for (const [property, value] of Object.entries(spec)) { + key.set(property, value); + } + } + } + + return key; +} + +/** + * Receives an index description and returns a modified index description which has had invalid options removed + * from the description and has mapped the `version` option to the `v` option. + */ +function resolveIndexDescription( + description: IndexDescription +): Omit { + const validProvidedOptions = Object.entries(description).filter(([optionName]) => + VALID_INDEX_OPTIONS.has(optionName) + ); + + return Object.fromEntries( + // we support the `version` option, but the `createIndexes` command expects it to be the `v` + validProvidedOptions.map(([name, value]) => (name === 'version' ? ['v', value] : [name, value])) + ); +} + +/** + * @public + * The index information returned by the listIndexes command. https://www.mongodb.com/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes + */ +export type IndexDescriptionInfo = Omit & { + key: { [key: string]: IndexDirection }; + v?: IndexDescription['version']; +} & Document; + +/** @public */ +export type IndexDescriptionCompact = Record; + +/** + * @internal + * + * Internally, the driver represents index description keys with `Map`s to preserve key ordering. + * We don't require users to specify maps, so we transform user provided descriptions into + * "resolved" by converting the `key` into a JS `Map`, if it isn't already a map. + * + * Additionally, we support the `version` option, but the `createIndexes` command uses the field `v` + * to specify the index version so we map the value of `version` to `v`, if provided. + */ +type ResolvedIndexDescription = Omit & { + key: Map; + v?: IndexDescription['version']; +}; + +/** @internal */ +export class CreateIndexesOperation extends CommandOperation { + override options: CreateIndexesOptions; + collectionName: string; + indexes: ReadonlyArray; + + private constructor( + parent: OperationParent, + collectionName: string, + indexes: IndexDescription[], + options?: CreateIndexesOptions + ) { + super(parent, options); + + this.options = options ?? {}; + this.collectionName = collectionName; + this.indexes = indexes.map((userIndex: IndexDescription): ResolvedIndexDescription => { + // Ensure the key is a Map to preserve index key ordering + const key = + userIndex.key instanceof Map ? userIndex.key : new Map(Object.entries(userIndex.key)); + const name = userIndex.name ?? Array.from(key).flat().join('_'); + const validIndexOptions = resolveIndexDescription(userIndex); + return { + ...validIndexOptions, + name, + key + }; + }); + } + + static fromIndexDescriptionArray( + parent: OperationParent, + collectionName: string, + indexes: IndexDescription[], + options?: CreateIndexesOptions + ): CreateIndexesOperation { + return new CreateIndexesOperation(parent, collectionName, indexes, options); + } + + static fromIndexSpecification( + parent: OperationParent, + collectionName: string, + indexSpec: IndexSpecification, + options: CreateIndexesOptions = {} + ): CreateIndexesOperation { + const key = constructIndexDescriptionMap(indexSpec); + const description: IndexDescription = { ...options, key }; + return new CreateIndexesOperation(parent, collectionName, [description], options); + } + + override get commandName() { + return 'createIndexes'; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const options = this.options; + const indexes = this.indexes; + + const serverWireVersion = maxWireVersion(server); + + const cmd: Document = { createIndexes: this.collectionName, indexes }; + + if (options.commitQuorum != null) { + if (serverWireVersion < 9) { + throw new MongoCompatibilityError( + 'Option `commitQuorum` for `createIndexes` not supported on servers < 4.4' + ); + } + cmd.commitQuorum = options.commitQuorum; + } + + // collation is set on each index, it should not be defined at the root + this.options.collation = undefined; + + await super.executeCommand(server, session, cmd); + + const indexNames = indexes.map(index => index.name || ''); + return indexNames; + } +} + +/** @public */ +export type DropIndexesOptions = CommandOperationOptions; + +/** @internal */ +export class DropIndexOperation extends CommandOperation { + override options: DropIndexesOptions; + collection: Collection; + indexName: string; + + constructor(collection: Collection, indexName: string, options?: DropIndexesOptions) { + super(collection, options); + + this.options = options ?? {}; + this.collection = collection; + this.indexName = indexName; + } + + override get commandName() { + return 'dropIndexes' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const cmd = { dropIndexes: this.collection.collectionName, index: this.indexName }; + return await super.executeCommand(server, session, cmd); + } +} + +/** @public */ +export type ListIndexesOptions = AbstractCursorOptions; + +/** @internal */ +export class ListIndexesOperation extends CommandOperation { + /** + * @remarks WriteConcern can still be present on the options because + * we inherit options from the client/db/collection. The + * key must be present on the options in order to delete it. + * This allows typescript to delete the key but will + * not allow a writeConcern to be assigned as a property on options. + */ + override options: ListIndexesOptions & { writeConcern?: never }; + collectionNamespace: MongoDBNamespace; + + constructor(collection: Collection, options?: ListIndexesOptions) { + super(collection, options); + + this.options = { ...options }; + delete this.options.writeConcern; + this.collectionNamespace = collection.s.namespace; + } + + override get commandName() { + return 'listIndexes' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const serverWireVersion = maxWireVersion(server); + + const cursor = this.options.batchSize ? { batchSize: this.options.batchSize } : {}; + + const command: Document = { listIndexes: this.collectionNamespace.collection, cursor }; + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (serverWireVersion >= 9 && this.options.comment !== undefined) { + command.comment = this.options.comment; + } + + return await super.executeCommand(server, session, command); + } +} + +defineAspects(ListIndexesOperation, [ + Aspect.READ_OPERATION, + Aspect.RETRYABLE, + Aspect.CURSOR_CREATING +]); +defineAspects(CreateIndexesOperation, [Aspect.WRITE_OPERATION]); +defineAspects(DropIndexOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/insert.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/insert.ts new file mode 100644 index 000000000..6621f6c0e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/insert.ts @@ -0,0 +1,160 @@ +import type { Document } from '../bson'; +import type { BulkWriteOptions } from '../bulk/common'; +import type { Collection } from '../collection'; +import { MongoInvalidArgumentError, MongoServerError } from '../error'; +import type { InferIdType } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import type { MongoDBNamespace } from '../utils'; +import { maybeAddIdToDocuments } from '../utils'; +import { WriteConcern } from '../write_concern'; +import { BulkWriteOperation } from './bulk_write'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { AbstractOperation, Aspect, defineAspects } from './operation'; + +/** @internal */ +export class InsertOperation extends CommandOperation { + override options: BulkWriteOptions; + documents: Document[]; + + constructor(ns: MongoDBNamespace, documents: Document[], options: BulkWriteOptions) { + super(undefined, options); + this.options = { ...options, checkKeys: options.checkKeys ?? false }; + this.ns = ns; + this.documents = documents; + } + + override get commandName() { + return 'insert' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const options = this.options ?? {}; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const command: Document = { + insert: this.ns.collection, + documents: this.documents, + ordered + }; + + if (typeof options.bypassDocumentValidation === 'boolean') { + command.bypassDocumentValidation = options.bypassDocumentValidation; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + + return await super.executeCommand(server, session, command); + } +} + +/** @public */ +export interface InsertOneOptions extends CommandOperationOptions { + /** Allow driver to bypass schema validation. */ + bypassDocumentValidation?: boolean; + /** Force server to assign _id values instead of driver. */ + forceServerObjectId?: boolean; +} + +/** @public */ +export interface InsertOneResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */ + acknowledged: boolean; + /** The identifier that was inserted. If the server generated the identifier, this value will be null as the driver does not have access to that data */ + insertedId: InferIdType; +} + +export class InsertOneOperation extends InsertOperation { + constructor(collection: Collection, doc: Document, options: InsertOneOptions) { + super(collection.s.namespace, maybeAddIdToDocuments(collection, [doc], options), options); + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const res = await super.execute(server, session); + if (res.code) throw new MongoServerError(res); + if (res.writeErrors) { + // This should be a WriteError but we can't change it now because of error hierarchy + throw new MongoServerError(res.writeErrors[0]); + } + + return { + acknowledged: this.writeConcern?.w !== 0, + insertedId: this.documents[0]._id + }; + } +} + +/** @public */ +export interface InsertManyResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */ + acknowledged: boolean; + /** The number of inserted documents for this operations */ + insertedCount: number; + /** Map of the index of the inserted document to the id of the inserted document */ + insertedIds: { [key: number]: InferIdType }; +} + +/** @internal */ +export class InsertManyOperation extends AbstractOperation { + override options: BulkWriteOptions; + collection: Collection; + docs: Document[]; + + constructor(collection: Collection, docs: Document[], options: BulkWriteOptions) { + super(options); + + if (!Array.isArray(docs)) { + throw new MongoInvalidArgumentError('Argument "docs" must be an array of documents'); + } + + this.options = options; + this.collection = collection; + this.docs = docs; + } + + override get commandName() { + return 'insert' as const; + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const coll = this.collection; + const options = { ...this.options, ...this.bsonOptions, readPreference: this.readPreference }; + const writeConcern = WriteConcern.fromOptions(options); + const bulkWriteOperation = new BulkWriteOperation( + coll, + this.docs.map(document => ({ + insertOne: { document } + })), + options + ); + + try { + const res = await bulkWriteOperation.execute(server, session); + return { + acknowledged: writeConcern?.w !== 0, + insertedCount: res.insertedCount, + insertedIds: res.insertedIds + }; + } catch (err) { + if (err && err.message === 'Operation must be an object with an operation key') { + throw new MongoInvalidArgumentError( + 'Collection.insertMany() cannot be called with an array that has null/undefined values' + ); + } + throw err; + } + } +} + +defineAspects(InsertOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION]); +defineAspects(InsertOneOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION]); +defineAspects(InsertManyOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/is_capped.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/is_capped.ts new file mode 100644 index 000000000..db52ec3bb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/is_capped.ts @@ -0,0 +1,35 @@ +import type { Collection } from '../collection'; +import { MongoAPIError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { AbstractOperation, type OperationOptions } from './operation'; + +/** @internal */ +export class IsCappedOperation extends AbstractOperation { + override options: OperationOptions; + collection: Collection; + + constructor(collection: Collection, options: OperationOptions) { + super(options); + this.options = options; + this.collection = collection; + } + + override get commandName() { + return 'listCollections' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const coll = this.collection; + const [collection] = await coll.s.db + .listCollections( + { name: coll.collectionName }, + { ...this.options, nameOnly: false, readPreference: this.readPreference, session } + ) + .toArray(); + if (collection == null || collection.options == null) { + throw new MongoAPIError(`collection ${coll.namespace} not found`); + } + return !!collection.options?.capped; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/kill_cursors.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/kill_cursors.ts new file mode 100644 index 000000000..356230e9c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/kill_cursors.ts @@ -0,0 +1,57 @@ +import type { Long } from '../bson'; +import { MongoRuntimeError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { type MongoDBNamespace, squashError } from '../utils'; +import { AbstractOperation, Aspect, defineAspects, type OperationOptions } from './operation'; + +/** + * https://www.mongodb.com/docs/manual/reference/command/killCursors/ + * @internal + */ +interface KillCursorsCommand { + killCursors: string; + cursors: Long[]; + comment?: unknown; +} + +export class KillCursorsOperation extends AbstractOperation { + cursorId: Long; + + constructor(cursorId: Long, ns: MongoDBNamespace, server: Server, options: OperationOptions) { + super(options); + this.ns = ns; + this.cursorId = cursorId; + this.server = server; + } + + override get commandName() { + return 'killCursors' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + if (server !== this.server) { + throw new MongoRuntimeError('Killcursor must run on the same server operation began on'); + } + + const killCursors = this.ns.collection; + if (killCursors == null) { + // Cursors should have adopted the namespace returned by MongoDB + // which should always defined a collection name (even a pseudo one, ex. db.aggregate()) + throw new MongoRuntimeError('A collection name must be determined before killCursors'); + } + + const killCursorsCommand: KillCursorsCommand = { + killCursors, + cursors: [this.cursorId] + }; + try { + await server.command(this.ns, killCursorsCommand, { session }); + } catch (error) { + // The driver should never emit errors from killCursors, this is spec-ed behavior + squashError(error); + } + } +} + +defineAspects(KillCursorsOperation, [Aspect.MUST_SELECT_SAME_SERVER]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/list_collections.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/list_collections.ts new file mode 100644 index 000000000..2d3819cac --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/list_collections.ts @@ -0,0 +1,98 @@ +import type { Binary, Document } from '../bson'; +import type { Db } from '../db'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { maxWireVersion } from '../utils'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface ListCollectionsOptions extends Omit { + /** Since 4.0: If true, will only return the collection name in the response, and will omit additional info */ + nameOnly?: boolean; + /** Since 4.0: If true and nameOnly is true, allows a user without the required privilege (i.e. listCollections action on the database) to run the command when access control is enforced. */ + authorizedCollections?: boolean; + /** The batchSize for the returned command cursor or if pre 2.8 the systems batch collection */ + batchSize?: number; +} + +/** @internal */ +export class ListCollectionsOperation extends CommandOperation { + /** + * @remarks WriteConcern can still be present on the options because + * we inherit options from the client/db/collection. The + * key must be present on the options in order to delete it. + * This allows typescript to delete the key but will + * not allow a writeConcern to be assigned as a property on options. + */ + override options: ListCollectionsOptions & { writeConcern?: never }; + db: Db; + filter: Document; + nameOnly: boolean; + authorizedCollections: boolean; + batchSize?: number; + + constructor(db: Db, filter: Document, options?: ListCollectionsOptions) { + super(db, options); + + this.options = { ...options }; + delete this.options.writeConcern; + this.db = db; + this.filter = filter; + this.nameOnly = !!this.options.nameOnly; + this.authorizedCollections = !!this.options.authorizedCollections; + + if (typeof this.options.batchSize === 'number') { + this.batchSize = this.options.batchSize; + } + } + + override get commandName() { + return 'listCollections' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + return await super.executeCommand( + server, + session, + this.generateCommand(maxWireVersion(server)) + ); + } + + /* This is here for the purpose of unit testing the final command that gets sent. */ + generateCommand(wireVersion: number): Document { + const command: Document = { + listCollections: 1, + filter: this.filter, + cursor: this.batchSize ? { batchSize: this.batchSize } : {}, + nameOnly: this.nameOnly, + authorizedCollections: this.authorizedCollections + }; + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (wireVersion >= 9 && this.options.comment !== undefined) { + command.comment = this.options.comment; + } + + return command; + } +} + +/** @public */ +export interface CollectionInfo extends Document { + name: string; + type?: string; + options?: Document; + info?: { + readOnly?: false; + uuid?: Binary; + }; + idIndex?: Document; +} + +defineAspects(ListCollectionsOperation, [ + Aspect.READ_OPERATION, + Aspect.RETRYABLE, + Aspect.CURSOR_CREATING +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/list_databases.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/list_databases.ts new file mode 100644 index 000000000..5ad9142a1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/list_databases.ts @@ -0,0 +1,70 @@ +import type { Document } from '../bson'; +import type { Db } from '../db'; +import { type TODO_NODE_3286 } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { maxWireVersion, MongoDBNamespace } from '../utils'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface ListDatabasesResult { + databases: ({ name: string; sizeOnDisk?: number; empty?: boolean } & Document)[]; + totalSize?: number; + totalSizeMb?: number; + ok: 1 | 0; +} + +/** @public */ +export interface ListDatabasesOptions extends CommandOperationOptions { + /** A query predicate that determines which databases are listed */ + filter?: Document; + /** A flag to indicate whether the command should return just the database names, or return both database names and size information */ + nameOnly?: boolean; + /** A flag that determines which databases are returned based on the user privileges when access control is enabled */ + authorizedDatabases?: boolean; +} + +/** @internal */ +export class ListDatabasesOperation extends CommandOperation { + override options: ListDatabasesOptions; + + constructor(db: Db, options?: ListDatabasesOptions) { + super(db, options); + this.options = options ?? {}; + this.ns = new MongoDBNamespace('admin', '$cmd'); + } + + override get commandName() { + return 'listDatabases' as const; + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const cmd: Document = { listDatabases: 1 }; + + if (typeof this.options.nameOnly === 'boolean') { + cmd.nameOnly = this.options.nameOnly; + } + + if (this.options.filter) { + cmd.filter = this.options.filter; + } + + if (typeof this.options.authorizedDatabases === 'boolean') { + cmd.authorizedDatabases = this.options.authorizedDatabases; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (maxWireVersion(server) >= 9 && this.options.comment !== undefined) { + cmd.comment = this.options.comment; + } + + return await (super.executeCommand(server, session, cmd) as Promise); + } +} + +defineAspects(ListDatabasesOperation, [Aspect.READ_OPERATION, Aspect.RETRYABLE]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/operation.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/operation.ts new file mode 100644 index 000000000..e71baa44a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/operation.ts @@ -0,0 +1,128 @@ +import { type BSONSerializeOptions, type Document, resolveBSONOptions } from '../bson'; +import { ReadPreference, type ReadPreferenceLike } from '../read_preference'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import type { MongoDBNamespace } from '../utils'; + +export const Aspect = { + READ_OPERATION: Symbol('READ_OPERATION'), + WRITE_OPERATION: Symbol('WRITE_OPERATION'), + RETRYABLE: Symbol('RETRYABLE'), + EXPLAINABLE: Symbol('EXPLAINABLE'), + SKIP_COLLATION: Symbol('SKIP_COLLATION'), + CURSOR_CREATING: Symbol('CURSOR_CREATING'), + MUST_SELECT_SAME_SERVER: Symbol('MUST_SELECT_SAME_SERVER') +} as const; + +/** @public */ +export type Hint = string | Document; + +// eslint-disable-next-line @typescript-eslint/ban-types +export interface OperationConstructor extends Function { + aspects?: Set; +} + +/** @public */ +export interface OperationOptions extends BSONSerializeOptions { + /** Specify ClientSession for this command */ + session?: ClientSession; + willRetryWrite?: boolean; + + /** The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest). */ + readPreference?: ReadPreferenceLike; + + /** @internal Hints to `executeOperation` that this operation should not unpin on an ended transaction */ + bypassPinningCheck?: boolean; + omitReadPreference?: boolean; + + /** @internal TODO(NODE-5688): make this public */ + timeoutMS?: number; +} + +/** @internal */ +const kSession = Symbol('session'); + +/** + * This class acts as a parent class for any operation and is responsible for setting this.options, + * as well as setting and getting a session. + * Additionally, this class implements `hasAspect`, which determines whether an operation has + * a specific aspect. + * @internal + */ +export abstract class AbstractOperation { + ns!: MongoDBNamespace; + readPreference: ReadPreference; + server!: Server; + bypassPinningCheck: boolean; + trySecondaryWrite: boolean; + + // BSON serialization options + bsonOptions?: BSONSerializeOptions; + + options: OperationOptions; + + [kSession]: ClientSession | undefined; + + constructor(options: OperationOptions = {}) { + this.readPreference = this.hasAspect(Aspect.WRITE_OPERATION) + ? ReadPreference.primary + : ReadPreference.fromOptions(options) ?? ReadPreference.primary; + + // Pull the BSON serialize options from the already-resolved options + this.bsonOptions = resolveBSONOptions(options); + + this[kSession] = options.session != null ? options.session : undefined; + + this.options = options; + this.bypassPinningCheck = !!options.bypassPinningCheck; + this.trySecondaryWrite = false; + } + + /** Must match the first key of the command object sent to the server. + Command name should be stateless (should not use 'this' keyword) */ + abstract get commandName(): string; + + abstract execute(server: Server, session: ClientSession | undefined): Promise; + + hasAspect(aspect: symbol): boolean { + const ctor = this.constructor as OperationConstructor; + if (ctor.aspects == null) { + return false; + } + + return ctor.aspects.has(aspect); + } + + get session(): ClientSession | undefined { + return this[kSession]; + } + + clearSession() { + this[kSession] = undefined; + } + + get canRetryRead(): boolean { + return true; + } + + get canRetryWrite(): boolean { + return true; + } +} + +export function defineAspects( + operation: OperationConstructor, + aspects: symbol | symbol[] | Set +): Set { + if (!Array.isArray(aspects) && !(aspects instanceof Set)) { + aspects = [aspects]; + } + + aspects = new Set(aspects); + Object.defineProperty(operation, 'aspects', { + value: aspects, + writable: false + }); + + return aspects; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/options_operation.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/options_operation.ts new file mode 100644 index 000000000..c480fe077 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/options_operation.ts @@ -0,0 +1,35 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import { MongoAPIError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { AbstractOperation, type OperationOptions } from './operation'; + +/** @internal */ +export class OptionsOperation extends AbstractOperation { + override options: OperationOptions; + collection: Collection; + + constructor(collection: Collection, options: OperationOptions) { + super(options); + this.options = options; + this.collection = collection; + } + override get commandName() { + return 'listCollections' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const coll = this.collection; + const [collection] = await coll.s.db + .listCollections( + { name: coll.collectionName }, + { ...this.options, nameOnly: false, readPreference: this.readPreference, session } + ) + .toArray(); + if (collection == null || collection.options == null) { + throw new MongoAPIError(`collection ${coll.namespace} not found`); + } + return collection.options; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/profiling_level.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/profiling_level.ts new file mode 100644 index 000000000..383062c2a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/profiling_level.ts @@ -0,0 +1,35 @@ +import type { Db } from '../db'; +import { MongoUnexpectedServerResponseError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; + +/** @public */ +export type ProfilingLevelOptions = CommandOperationOptions; + +/** @internal */ +export class ProfilingLevelOperation extends CommandOperation { + override options: ProfilingLevelOptions; + + constructor(db: Db, options: ProfilingLevelOptions) { + super(db, options); + this.options = options; + } + + override get commandName() { + return 'profile' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const doc = await super.executeCommand(server, session, { profile: -1 }); + if (doc.ok === 1) { + const was = doc.was; + if (was === 0) return 'off'; + if (was === 1) return 'slow_only'; + if (was === 2) return 'all'; + throw new MongoUnexpectedServerResponseError(`Illegal profiling level value ${was}`); + } else { + throw new MongoUnexpectedServerResponseError('Error with profile command'); + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/remove_user.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/remove_user.ts new file mode 100644 index 000000000..ced8e4e1c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/remove_user.ts @@ -0,0 +1,31 @@ +import type { Db } from '../db'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export type RemoveUserOptions = CommandOperationOptions; + +/** @internal */ +export class RemoveUserOperation extends CommandOperation { + override options: RemoveUserOptions; + username: string; + + constructor(db: Db, username: string, options: RemoveUserOptions) { + super(db, options); + this.options = options; + this.username = username; + } + + override get commandName() { + return 'dropUser' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + await super.executeCommand(server, session, { dropUser: this.username }); + return true; + } +} + +defineAspects(RemoveUserOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/rename.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/rename.ts new file mode 100644 index 000000000..a27d4afe4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/rename.ts @@ -0,0 +1,50 @@ +import type { Document } from '../bson'; +import { Collection } from '../collection'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { MongoDBNamespace } from '../utils'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface RenameOptions extends CommandOperationOptions { + /** Drop the target name collection if it previously exists. */ + dropTarget?: boolean; + /** Unclear */ + new_collection?: boolean; +} + +/** @internal */ +export class RenameOperation extends CommandOperation { + constructor( + public collection: Collection, + public newName: string, + public override options: RenameOptions + ) { + super(collection, options); + this.ns = new MongoDBNamespace('admin', '$cmd'); + } + + override get commandName(): string { + return 'renameCollection' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + // Build the command + const renameCollection = this.collection.namespace; + const toCollection = this.collection.s.namespace.withCollection(this.newName).toString(); + const dropTarget = + typeof this.options.dropTarget === 'boolean' ? this.options.dropTarget : false; + + const command = { + renameCollection: renameCollection, + to: toCollection, + dropTarget: dropTarget + }; + + await super.executeCommand(server, session, command); + return new Collection(this.collection.s.db, this.newName, this.collection.s.options); + } +} + +defineAspects(RenameOperation, [Aspect.WRITE_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/run_command.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/run_command.ts new file mode 100644 index 000000000..9042407b3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/run_command.ts @@ -0,0 +1,65 @@ +import type { BSONSerializeOptions, Document } from '../bson'; +import { type Db } from '../db'; +import { type TODO_NODE_3286 } from '../mongo_types'; +import type { ReadPreferenceLike } from '../read_preference'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { MongoDBNamespace } from '../utils'; +import { AbstractOperation } from './operation'; + +/** @public */ +export type RunCommandOptions = { + /** Specify ClientSession for this command */ + session?: ClientSession; + /** The read preference */ + readPreference?: ReadPreferenceLike; +} & BSONSerializeOptions; + +/** @internal */ +export class RunCommandOperation extends AbstractOperation { + constructor(parent: Db, public command: Document, public override options: RunCommandOptions) { + super(options); + this.ns = parent.s.namespace.withCollection('$cmd'); + } + + override get commandName() { + return 'runCommand' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + this.server = server; + const res: TODO_NODE_3286 = await server.command(this.ns, this.command, { + ...this.options, + readPreference: this.readPreference, + session + }); + return res; + } +} + +export class RunAdminCommandOperation extends AbstractOperation { + constructor( + public command: Document, + public override options: RunCommandOptions & { + noResponse?: boolean; + bypassPinningCheck?: boolean; + } + ) { + super(options); + this.ns = new MongoDBNamespace('admin', '$cmd'); + } + + override get commandName() { + return 'runCommand' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + this.server = server; + const res: TODO_NODE_3286 = await server.command(this.ns, this.command, { + ...this.options, + readPreference: this.readPreference, + session + }); + return res; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/create.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/create.ts new file mode 100644 index 000000000..7e5e55d18 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/create.ts @@ -0,0 +1,47 @@ +import type { Document } from 'bson'; + +import type { Collection } from '../../collection'; +import type { Server } from '../../sdam/server'; +import type { ClientSession } from '../../sessions'; +import { AbstractOperation } from '../operation'; + +/** + * @public + */ +export interface SearchIndexDescription extends Document { + /** The name of the index. */ + name?: string; + + /** The index definition. */ + definition: Document; + + /** The type of the index. Currently `search` or `vectorSearch` are supported. */ + type?: string; +} + +/** @internal */ +export class CreateSearchIndexesOperation extends AbstractOperation { + constructor( + private readonly collection: Collection, + private readonly descriptions: ReadonlyArray + ) { + super(); + } + + override get commandName() { + return 'createSearchIndexes' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const namespace = this.collection.fullNamespace; + const command = { + createSearchIndexes: namespace.collection, + indexes: this.descriptions + }; + + const res = await server.command(namespace, command, { session }); + + const indexesCreated: Array<{ name: string }> = res?.indexesCreated ?? []; + return indexesCreated.map(({ name }) => name); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/drop.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/drop.ts new file mode 100644 index 000000000..05a56f1c4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/drop.ts @@ -0,0 +1,40 @@ +import type { Document } from 'bson'; + +import type { Collection } from '../../collection'; +import { MONGODB_ERROR_CODES, MongoServerError } from '../../error'; +import type { Server } from '../../sdam/server'; +import type { ClientSession } from '../../sessions'; +import { AbstractOperation } from '../operation'; + +/** @internal */ +export class DropSearchIndexOperation extends AbstractOperation { + constructor(private readonly collection: Collection, private readonly name: string) { + super(); + } + + override get commandName() { + return 'dropSearchIndex' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const namespace = this.collection.fullNamespace; + + const command: Document = { + dropSearchIndex: namespace.collection + }; + + if (typeof this.name === 'string') { + command.name = this.name; + } + + try { + await server.command(namespace, command, { session }); + } catch (error) { + const isNamespaceNotFoundError = + error instanceof MongoServerError && error.code === MONGODB_ERROR_CODES.NamespaceNotFound; + if (!isNamespaceNotFoundError) { + throw error; + } + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/update.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/update.ts new file mode 100644 index 000000000..aad7f9353 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/search_indexes/update.ts @@ -0,0 +1,33 @@ +import type { Document } from 'bson'; + +import type { Collection } from '../../collection'; +import type { Server } from '../../sdam/server'; +import type { ClientSession } from '../../sessions'; +import { AbstractOperation } from '../operation'; + +/** @internal */ +export class UpdateSearchIndexOperation extends AbstractOperation { + constructor( + private readonly collection: Collection, + private readonly name: string, + private readonly definition: Document + ) { + super(); + } + + override get commandName() { + return 'updateSearchIndex' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const namespace = this.collection.fullNamespace; + const command = { + updateSearchIndex: namespace.collection, + name: this.name, + definition: this.definition + }; + + await server.command(namespace, command, { session }); + return; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/set_profiling_level.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/set_profiling_level.ts new file mode 100644 index 000000000..9969b2ea3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/set_profiling_level.ts @@ -0,0 +1,70 @@ +import type { Db } from '../db'; +import { MongoInvalidArgumentError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { enumToString } from '../utils'; +import { CommandOperation, type CommandOperationOptions } from './command'; + +const levelValues = new Set(['off', 'slow_only', 'all']); + +/** @public */ +export const ProfilingLevel = Object.freeze({ + off: 'off', + slowOnly: 'slow_only', + all: 'all' +} as const); + +/** @public */ +export type ProfilingLevel = (typeof ProfilingLevel)[keyof typeof ProfilingLevel]; + +/** @public */ +export type SetProfilingLevelOptions = CommandOperationOptions; + +/** @internal */ +export class SetProfilingLevelOperation extends CommandOperation { + override options: SetProfilingLevelOptions; + level: ProfilingLevel; + profile: 0 | 1 | 2; + + constructor(db: Db, level: ProfilingLevel, options: SetProfilingLevelOptions) { + super(db, options); + this.options = options; + switch (level) { + case ProfilingLevel.off: + this.profile = 0; + break; + case ProfilingLevel.slowOnly: + this.profile = 1; + break; + case ProfilingLevel.all: + this.profile = 2; + break; + default: + this.profile = 0; + break; + } + + this.level = level; + } + + override get commandName() { + return 'profile' as const; + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const level = this.level; + + if (!levelValues.has(level)) { + throw new MongoInvalidArgumentError( + `Profiling level must be one of "${enumToString(ProfilingLevel)}"` + ); + } + + // TODO(NODE-3483): Determine error to put here + await super.executeCommand(server, session, { profile: this.profile }); + return level; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/stats.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/stats.ts new file mode 100644 index 000000000..41c9faf6e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/stats.ts @@ -0,0 +1,37 @@ +import type { Document } from '../bson'; +import type { Db } from '../db'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects } from './operation'; + +/** @public */ +export interface DbStatsOptions extends CommandOperationOptions { + /** Divide the returned sizes by scale value. */ + scale?: number; +} + +/** @internal */ +export class DbStatsOperation extends CommandOperation { + override options: DbStatsOptions; + + constructor(db: Db, options: DbStatsOptions) { + super(db, options); + this.options = options; + } + + override get commandName() { + return 'dbStats' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const command: Document = { dbStats: true }; + if (this.options.scale != null) { + command.scale = this.options.scale; + } + + return await super.executeCommand(server, session, command); + } +} + +defineAspects(DbStatsOperation, [Aspect.READ_OPERATION]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/update.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/update.ts new file mode 100644 index 000000000..a863afdc6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/update.ts @@ -0,0 +1,303 @@ +import type { Document } from '../bson'; +import type { Collection } from '../collection'; +import { MongoCompatibilityError, MongoInvalidArgumentError, MongoServerError } from '../error'; +import type { InferIdType, TODO_NODE_3286 } from '../mongo_types'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { hasAtomicOperators, type MongoDBNamespace } from '../utils'; +import { type CollationOptions, CommandOperation, type CommandOperationOptions } from './command'; +import { Aspect, defineAspects, type Hint } from './operation'; + +/** @public */ +export interface UpdateOptions extends CommandOperationOptions { + /** A set of filters specifying to which array elements an update should apply */ + arrayFilters?: Document[]; + /** If true, allows the write to opt-out of document level validation */ + bypassDocumentValidation?: boolean; + /** Specifies a collation */ + collation?: CollationOptions; + /** Specify that the update query should only consider plans using the hinted index */ + hint?: Hint; + /** When true, creates a new document if no document matches the query */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** + * @public + * `TSchema` is the schema of the collection + */ +export interface UpdateResult { + /** Indicates whether this write result was acknowledged. If not, then all other members of this result will be undefined */ + acknowledged: boolean; + /** The number of documents that matched the filter */ + matchedCount: number; + /** The number of documents that were modified */ + modifiedCount: number; + /** The number of documents that were upserted */ + upsertedCount: number; + /** The identifier of the inserted document if an upsert took place */ + upsertedId: InferIdType | null; +} + +/** @public */ +export interface UpdateStatement { + /** The query that matches documents to update. */ + q: Document; + /** The modifications to apply. */ + u: Document | Document[]; + /** If true, perform an insert if no documents match the query. */ + upsert?: boolean; + /** If true, updates all documents that meet the query criteria. */ + multi?: boolean; + /** Specifies the collation to use for the operation. */ + collation?: CollationOptions; + /** An array of filter documents that determines which array elements to modify for an update operation on an array field. */ + arrayFilters?: Document[]; + /** A document or string that specifies the index to use to support the query predicate. */ + hint?: Hint; +} + +/** + * @internal + * UpdateOperation is used in bulk write, while UpdateOneOperation and UpdateManyOperation are only used in the collections API + */ +export class UpdateOperation extends CommandOperation { + override options: UpdateOptions & { ordered?: boolean }; + statements: UpdateStatement[]; + + constructor( + ns: MongoDBNamespace, + statements: UpdateStatement[], + options: UpdateOptions & { ordered?: boolean } + ) { + super(undefined, options); + this.options = options; + this.ns = ns; + + this.statements = statements; + } + + override get commandName() { + return 'update' as const; + } + + override get canRetryWrite(): boolean { + if (super.canRetryWrite === false) { + return false; + } + + return this.statements.every(op => op.multi == null || op.multi === false); + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const options = this.options ?? {}; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const command: Document = { + update: this.ns.collection, + updates: this.statements, + ordered + }; + + if (typeof options.bypassDocumentValidation === 'boolean') { + command.bypassDocumentValidation = options.bypassDocumentValidation; + } + + if (options.let) { + command.let = options.let; + } + + // we check for undefined specifically here to allow falsy values + // eslint-disable-next-line no-restricted-syntax + if (options.comment !== undefined) { + command.comment = options.comment; + } + + const unacknowledgedWrite = this.writeConcern && this.writeConcern.w === 0; + if (unacknowledgedWrite) { + if (this.statements.find((o: Document) => o.hint)) { + // TODO(NODE-3541): fix error for hint with unacknowledged writes + throw new MongoCompatibilityError(`hint is not supported with unacknowledged writes`); + } + } + + return await super.executeCommand(server, session, command); + } +} + +/** @internal */ +export class UpdateOneOperation extends UpdateOperation { + constructor(collection: Collection, filter: Document, update: Document, options: UpdateOptions) { + super( + collection.s.namespace, + [makeUpdateStatement(filter, update, { ...options, multi: false })], + options + ); + + if (!hasAtomicOperators(update)) { + throw new MongoInvalidArgumentError('Update document requires atomic operators'); + } + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const res: TODO_NODE_3286 = await super.execute(server, session); + if (this.explain != null) return res; + if (res.code) throw new MongoServerError(res); + if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]); + + return { + acknowledged: this.writeConcern?.w !== 0, + modifiedCount: res.nModified ?? res.n, + upsertedId: + Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null, + upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0, + matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n + }; + } +} + +/** @internal */ +export class UpdateManyOperation extends UpdateOperation { + constructor(collection: Collection, filter: Document, update: Document, options: UpdateOptions) { + super( + collection.s.namespace, + [makeUpdateStatement(filter, update, { ...options, multi: true })], + options + ); + + if (!hasAtomicOperators(update)) { + throw new MongoInvalidArgumentError('Update document requires atomic operators'); + } + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const res: TODO_NODE_3286 = await super.execute(server, session); + if (this.explain != null) return res; + if (res.code) throw new MongoServerError(res); + if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]); + + return { + acknowledged: this.writeConcern?.w !== 0, + modifiedCount: res.nModified ?? res.n, + upsertedId: + Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null, + upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0, + matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n + }; + } +} + +/** @public */ +export interface ReplaceOptions extends CommandOperationOptions { + /** If true, allows the write to opt-out of document level validation */ + bypassDocumentValidation?: boolean; + /** Specifies a collation */ + collation?: CollationOptions; + /** Specify that the update query should only consider plans using the hinted index */ + hint?: string | Document; + /** When true, creates a new document if no document matches the query */ + upsert?: boolean; + /** Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0). */ + let?: Document; +} + +/** @internal */ +export class ReplaceOneOperation extends UpdateOperation { + constructor( + collection: Collection, + filter: Document, + replacement: Document, + options: ReplaceOptions + ) { + super( + collection.s.namespace, + [makeUpdateStatement(filter, replacement, { ...options, multi: false })], + options + ); + + if (hasAtomicOperators(replacement)) { + throw new MongoInvalidArgumentError('Replacement document must not contain atomic operators'); + } + } + + override async execute( + server: Server, + session: ClientSession | undefined + ): Promise { + const res: TODO_NODE_3286 = await super.execute(server, session); + if (this.explain != null) return res; + if (res.code) throw new MongoServerError(res); + if (res.writeErrors) throw new MongoServerError(res.writeErrors[0]); + + return { + acknowledged: this.writeConcern?.w !== 0, + modifiedCount: res.nModified ?? res.n, + upsertedId: + Array.isArray(res.upserted) && res.upserted.length > 0 ? res.upserted[0]._id : null, + upsertedCount: Array.isArray(res.upserted) && res.upserted.length ? res.upserted.length : 0, + matchedCount: Array.isArray(res.upserted) && res.upserted.length > 0 ? 0 : res.n + }; + } +} + +export function makeUpdateStatement( + filter: Document, + update: Document | Document[], + options: UpdateOptions & { multi?: boolean } +): UpdateStatement { + if (filter == null || typeof filter !== 'object') { + throw new MongoInvalidArgumentError('Selector must be a valid JavaScript object'); + } + + if (update == null || typeof update !== 'object') { + throw new MongoInvalidArgumentError('Document must be a valid JavaScript object'); + } + + const op: UpdateStatement = { q: filter, u: update }; + if (typeof options.upsert === 'boolean') { + op.upsert = options.upsert; + } + + if (options.multi) { + op.multi = options.multi; + } + + if (options.hint) { + op.hint = options.hint; + } + + if (options.arrayFilters) { + op.arrayFilters = options.arrayFilters; + } + + if (options.collation) { + op.collation = options.collation; + } + + return op; +} + +defineAspects(UpdateOperation, [Aspect.RETRYABLE, Aspect.WRITE_OPERATION, Aspect.SKIP_COLLATION]); +defineAspects(UpdateOneOperation, [ + Aspect.RETRYABLE, + Aspect.WRITE_OPERATION, + Aspect.EXPLAINABLE, + Aspect.SKIP_COLLATION +]); +defineAspects(UpdateManyOperation, [ + Aspect.WRITE_OPERATION, + Aspect.EXPLAINABLE, + Aspect.SKIP_COLLATION +]); +defineAspects(ReplaceOneOperation, [ + Aspect.RETRYABLE, + Aspect.WRITE_OPERATION, + Aspect.SKIP_COLLATION +]); diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/operations/validate_collection.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/validate_collection.ts new file mode 100644 index 000000000..4880a703a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/operations/validate_collection.ts @@ -0,0 +1,53 @@ +import type { Admin } from '../admin'; +import type { Document } from '../bson'; +import { MongoUnexpectedServerResponseError } from '../error'; +import type { Server } from '../sdam/server'; +import type { ClientSession } from '../sessions'; +import { CommandOperation, type CommandOperationOptions } from './command'; + +/** @public */ +export interface ValidateCollectionOptions extends CommandOperationOptions { + /** Validates a collection in the background, without interrupting read or write traffic (only in MongoDB 4.4+) */ + background?: boolean; +} + +/** @internal */ +export class ValidateCollectionOperation extends CommandOperation { + override options: ValidateCollectionOptions; + collectionName: string; + command: Document; + + constructor(admin: Admin, collectionName: string, options: ValidateCollectionOptions) { + // Decorate command with extra options + const command: Document = { validate: collectionName }; + const keys = Object.keys(options); + for (let i = 0; i < keys.length; i++) { + if (Object.prototype.hasOwnProperty.call(options, keys[i]) && keys[i] !== 'session') { + command[keys[i]] = (options as Document)[keys[i]]; + } + } + + super(admin.s.db, options); + this.options = options; + this.command = command; + this.collectionName = collectionName; + } + + override get commandName() { + return 'validate' as const; + } + + override async execute(server: Server, session: ClientSession | undefined): Promise { + const collectionName = this.collectionName; + + const doc = await super.executeCommand(server, session, this.command); + if (doc.result != null && typeof doc.result !== 'string') + throw new MongoUnexpectedServerResponseError('Error with validation data'); + if (doc.result != null && doc.result.match(/exception|corrupt/) != null) + throw new MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`); + if (doc.valid != null && !doc.valid) + throw new MongoUnexpectedServerResponseError(`Invalid collection ${collectionName}`); + + return doc; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/read_concern.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/read_concern.ts new file mode 100644 index 000000000..93c5688a4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/read_concern.ts @@ -0,0 +1,88 @@ +import type { Document } from './bson'; + +/** @public */ +export const ReadConcernLevel = Object.freeze({ + local: 'local', + majority: 'majority', + linearizable: 'linearizable', + available: 'available', + snapshot: 'snapshot' +} as const); + +/** @public */ +export type ReadConcernLevel = (typeof ReadConcernLevel)[keyof typeof ReadConcernLevel]; + +/** @public */ +export type ReadConcernLike = ReadConcern | { level: ReadConcernLevel } | ReadConcernLevel; + +/** + * The MongoDB ReadConcern, which allows for control of the consistency and isolation properties + * of the data read from replica sets and replica set shards. + * @public + * + * @see https://www.mongodb.com/docs/manual/reference/read-concern/index.html + */ +export class ReadConcern { + level: ReadConcernLevel | string; + + /** Constructs a ReadConcern from the read concern level.*/ + constructor(level: ReadConcernLevel) { + /** + * A spec test exists that allows level to be any string. + * "invalid readConcern with out stage" + * @see ./test/spec/crud/v2/aggregate-out-readConcern.json + * @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.rst#unknown-levels-and-additional-options-for-string-based-readconcerns + */ + this.level = ReadConcernLevel[level] ?? level; + } + + /** + * Construct a ReadConcern given an options object. + * + * @param options - The options object from which to extract the write concern. + */ + static fromOptions(options?: { + readConcern?: ReadConcernLike; + level?: ReadConcernLevel; + }): ReadConcern | undefined { + if (options == null) { + return; + } + + if (options.readConcern) { + const { readConcern } = options; + if (readConcern instanceof ReadConcern) { + return readConcern; + } else if (typeof readConcern === 'string') { + return new ReadConcern(readConcern); + } else if ('level' in readConcern && readConcern.level) { + return new ReadConcern(readConcern.level); + } + } + + if (options.level) { + return new ReadConcern(options.level); + } + return; + } + + static get MAJORITY(): 'majority' { + return ReadConcernLevel.majority; + } + + static get AVAILABLE(): 'available' { + return ReadConcernLevel.available; + } + + static get LINEARIZABLE(): 'linearizable' { + return ReadConcernLevel.linearizable; + } + + static get SNAPSHOT(): 'snapshot' { + return ReadConcernLevel.snapshot; + } + + toJSON(): Document { + return { level: this.level }; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/read_preference.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/read_preference.ts new file mode 100644 index 000000000..cef52ad4d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/read_preference.ts @@ -0,0 +1,262 @@ +import type { Document } from './bson'; +import { MongoInvalidArgumentError } from './error'; +import type { TagSet } from './sdam/server_description'; +import type { ClientSession } from './sessions'; + +/** @public */ +export type ReadPreferenceLike = ReadPreference | ReadPreferenceMode; + +/** @public */ +export const ReadPreferenceMode = Object.freeze({ + primary: 'primary', + primaryPreferred: 'primaryPreferred', + secondary: 'secondary', + secondaryPreferred: 'secondaryPreferred', + nearest: 'nearest' +} as const); + +/** @public */ +export type ReadPreferenceMode = (typeof ReadPreferenceMode)[keyof typeof ReadPreferenceMode]; + +/** @public */ +export interface HedgeOptions { + /** Explicitly enable or disable hedged reads. */ + enabled?: boolean; +} + +/** @public */ +export interface ReadPreferenceOptions { + /** Max secondary read staleness in seconds, Minimum value is 90 seconds.*/ + maxStalenessSeconds?: number; + /** Server mode in which the same query is dispatched in parallel to multiple replica set members. */ + hedge?: HedgeOptions; +} + +/** @public */ +export interface ReadPreferenceLikeOptions extends ReadPreferenceOptions { + readPreference?: + | ReadPreferenceLike + | { + mode?: ReadPreferenceMode; + preference?: ReadPreferenceMode; + tags?: TagSet[]; + maxStalenessSeconds?: number; + }; +} + +/** @public */ +export interface ReadPreferenceFromOptions extends ReadPreferenceLikeOptions { + session?: ClientSession; + readPreferenceTags?: TagSet[]; + hedge?: HedgeOptions; +} + +/** + * The **ReadPreference** class is a class that represents a MongoDB ReadPreference and is + * used to construct connections. + * @public + * + * @see https://www.mongodb.com/docs/manual/core/read-preference/ + */ +export class ReadPreference { + mode: ReadPreferenceMode; + tags?: TagSet[]; + hedge?: HedgeOptions; + maxStalenessSeconds?: number; + minWireVersion?: number; + + public static PRIMARY = ReadPreferenceMode.primary; + public static PRIMARY_PREFERRED = ReadPreferenceMode.primaryPreferred; + public static SECONDARY = ReadPreferenceMode.secondary; + public static SECONDARY_PREFERRED = ReadPreferenceMode.secondaryPreferred; + public static NEAREST = ReadPreferenceMode.nearest; + + public static primary = new ReadPreference(ReadPreferenceMode.primary); + public static primaryPreferred = new ReadPreference(ReadPreferenceMode.primaryPreferred); + public static secondary = new ReadPreference(ReadPreferenceMode.secondary); + public static secondaryPreferred = new ReadPreference(ReadPreferenceMode.secondaryPreferred); + public static nearest = new ReadPreference(ReadPreferenceMode.nearest); + + /** + * @param mode - A string describing the read preference mode (primary|primaryPreferred|secondary|secondaryPreferred|nearest) + * @param tags - A tag set used to target reads to members with the specified tag(s). tagSet is not available if using read preference mode primary. + * @param options - Additional read preference options + */ + constructor(mode: ReadPreferenceMode, tags?: TagSet[], options?: ReadPreferenceOptions) { + if (!ReadPreference.isValid(mode)) { + throw new MongoInvalidArgumentError(`Invalid read preference mode ${JSON.stringify(mode)}`); + } + if (options == null && typeof tags === 'object' && !Array.isArray(tags)) { + options = tags; + tags = undefined; + } else if (tags && !Array.isArray(tags)) { + throw new MongoInvalidArgumentError('ReadPreference tags must be an array'); + } + + this.mode = mode; + this.tags = tags; + this.hedge = options?.hedge; + this.maxStalenessSeconds = undefined; + this.minWireVersion = undefined; + + options = options ?? {}; + if (options.maxStalenessSeconds != null) { + if (options.maxStalenessSeconds <= 0) { + throw new MongoInvalidArgumentError('maxStalenessSeconds must be a positive integer'); + } + + this.maxStalenessSeconds = options.maxStalenessSeconds; + + // NOTE: The minimum required wire version is 5 for this read preference. If the existing + // topology has a lower value then a MongoError will be thrown during server selection. + this.minWireVersion = 5; + } + + if (this.mode === ReadPreference.PRIMARY) { + if (this.tags && Array.isArray(this.tags) && this.tags.length > 0) { + throw new MongoInvalidArgumentError('Primary read preference cannot be combined with tags'); + } + + if (this.maxStalenessSeconds) { + throw new MongoInvalidArgumentError( + 'Primary read preference cannot be combined with maxStalenessSeconds' + ); + } + + if (this.hedge) { + throw new MongoInvalidArgumentError( + 'Primary read preference cannot be combined with hedge' + ); + } + } + } + + // Support the deprecated `preference` property introduced in the porcelain layer + get preference(): ReadPreferenceMode { + return this.mode; + } + + static fromString(mode: string): ReadPreference { + return new ReadPreference(mode as ReadPreferenceMode); + } + + /** + * Construct a ReadPreference given an options object. + * + * @param options - The options object from which to extract the read preference. + */ + static fromOptions(options?: ReadPreferenceFromOptions): ReadPreference | undefined { + if (!options) return; + const readPreference = + options.readPreference ?? options.session?.transaction.options.readPreference; + const readPreferenceTags = options.readPreferenceTags; + + if (readPreference == null) { + return; + } + + if (typeof readPreference === 'string') { + return new ReadPreference(readPreference, readPreferenceTags, { + maxStalenessSeconds: options.maxStalenessSeconds, + hedge: options.hedge + }); + } else if (!(readPreference instanceof ReadPreference) && typeof readPreference === 'object') { + const mode = readPreference.mode || readPreference.preference; + if (mode && typeof mode === 'string') { + return new ReadPreference(mode, readPreference.tags ?? readPreferenceTags, { + maxStalenessSeconds: readPreference.maxStalenessSeconds, + hedge: options.hedge + }); + } + } + + if (readPreferenceTags) { + readPreference.tags = readPreferenceTags; + } + + return readPreference as ReadPreference; + } + + /** + * Replaces options.readPreference with a ReadPreference instance + */ + static translate(options: ReadPreferenceLikeOptions): ReadPreferenceLikeOptions { + if (options.readPreference == null) return options; + const r = options.readPreference; + + if (typeof r === 'string') { + options.readPreference = new ReadPreference(r); + } else if (r && !(r instanceof ReadPreference) && typeof r === 'object') { + const mode = r.mode || r.preference; + if (mode && typeof mode === 'string') { + options.readPreference = new ReadPreference(mode, r.tags, { + maxStalenessSeconds: r.maxStalenessSeconds + }); + } + } else if (!(r instanceof ReadPreference)) { + throw new MongoInvalidArgumentError(`Invalid read preference: ${r}`); + } + + return options; + } + + /** + * Validate if a mode is legal + * + * @param mode - The string representing the read preference mode. + */ + static isValid(mode: string): boolean { + const VALID_MODES = new Set([ + ReadPreference.PRIMARY, + ReadPreference.PRIMARY_PREFERRED, + ReadPreference.SECONDARY, + ReadPreference.SECONDARY_PREFERRED, + ReadPreference.NEAREST, + null + ]); + + return VALID_MODES.has(mode as ReadPreferenceMode); + } + + /** + * Validate if a mode is legal + * + * @param mode - The string representing the read preference mode. + */ + isValid(mode?: string): boolean { + return ReadPreference.isValid(typeof mode === 'string' ? mode : this.mode); + } + + /** + * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire + * @see https://www.mongodb.com/docs/manual/reference/mongodb-wire-protocol/#op-query + */ + secondaryOk(): boolean { + const NEEDS_SECONDARYOK = new Set([ + ReadPreference.PRIMARY_PREFERRED, + ReadPreference.SECONDARY, + ReadPreference.SECONDARY_PREFERRED, + ReadPreference.NEAREST + ]); + + return NEEDS_SECONDARYOK.has(this.mode); + } + + /** + * Check if the two ReadPreferences are equivalent + * + * @param readPreference - The read preference with which to check equality + */ + equals(readPreference: ReadPreference): boolean { + return readPreference.mode === this.mode; + } + + /** Return JSON representation */ + toJSON(): Document { + const readPreference = { mode: this.mode } as Document; + if (Array.isArray(this.tags)) readPreference.tags = this.tags; + if (this.maxStalenessSeconds) readPreference.maxStalenessSeconds = this.maxStalenessSeconds; + if (this.hedge) readPreference.hedge = this.hedge; + return readPreference; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/common.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/common.ts new file mode 100644 index 000000000..fab8124d4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/common.ts @@ -0,0 +1,85 @@ +import { clearTimeout } from 'timers'; + +import type { Binary, Long, Timestamp } from '../bson'; +import type { ClientSession } from '../sessions'; +import type { Topology } from './topology'; + +// shared state names +export const STATE_CLOSING = 'closing'; +export const STATE_CLOSED = 'closed'; +export const STATE_CONNECTING = 'connecting'; +export const STATE_CONNECTED = 'connected'; + +/** + * An enumeration of topology types we know about + * @public + */ +export const TopologyType = Object.freeze({ + Single: 'Single', + ReplicaSetNoPrimary: 'ReplicaSetNoPrimary', + ReplicaSetWithPrimary: 'ReplicaSetWithPrimary', + Sharded: 'Sharded', + Unknown: 'Unknown', + LoadBalanced: 'LoadBalanced' +} as const); + +/** @public */ +export type TopologyType = (typeof TopologyType)[keyof typeof TopologyType]; + +/** + * An enumeration of server types we know about + * @public + */ +export const ServerType = Object.freeze({ + Standalone: 'Standalone', + Mongos: 'Mongos', + PossiblePrimary: 'PossiblePrimary', + RSPrimary: 'RSPrimary', + RSSecondary: 'RSSecondary', + RSArbiter: 'RSArbiter', + RSOther: 'RSOther', + RSGhost: 'RSGhost', + Unknown: 'Unknown', + LoadBalancer: 'LoadBalancer' +} as const); + +/** @public */ +export type ServerType = (typeof ServerType)[keyof typeof ServerType]; + +/** @internal */ +export type TimerQueue = Set; + +/** @internal */ +export function drainTimerQueue(queue: TimerQueue): void { + queue.forEach(clearTimeout); + queue.clear(); +} + +/** + * @public + * Gossiped in component for the cluster time tracking the state of user databases + * across the cluster. It may optionally include a signature identifying the process that + * generated such a value. + */ +export interface ClusterTime { + clusterTime: Timestamp; + /** Used to validate the identity of a request or response's ClusterTime. */ + signature?: { + hash: Binary; + keyId: Long; + }; +} + +/** Shared function to determine clusterTime for a given topology or session */ +export function _advanceClusterTime( + entity: Topology | ClientSession, + $clusterTime: ClusterTime +): void { + if (entity.clusterTime == null) { + entity.clusterTime = $clusterTime; + } else { + if ($clusterTime.clusterTime.greaterThan(entity.clusterTime.clusterTime)) { + entity.clusterTime = $clusterTime; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/events.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/events.ts new file mode 100644 index 000000000..64cb6ffb3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/events.ts @@ -0,0 +1,219 @@ +import type { Document } from '../bson'; +import { + SERVER_CLOSED, + SERVER_DESCRIPTION_CHANGED, + SERVER_HEARTBEAT_FAILED, + SERVER_HEARTBEAT_STARTED, + SERVER_HEARTBEAT_SUCCEEDED, + SERVER_OPENING, + TOPOLOGY_CLOSED, + TOPOLOGY_DESCRIPTION_CHANGED, + TOPOLOGY_OPENING +} from '../constants'; +import type { ServerDescription } from './server_description'; +import type { TopologyDescription } from './topology_description'; + +/** + * Emitted when server description changes, but does NOT include changes to the RTT. + * @public + * @category Event + */ +export class ServerDescriptionChangedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The address (host/port pair) of the server */ + address: string; + /** The previous server description */ + previousDescription: ServerDescription; + /** The new server description */ + newDescription: ServerDescription; + name = SERVER_DESCRIPTION_CHANGED; + + /** @internal */ + constructor( + topologyId: number, + address: string, + previousDescription: ServerDescription, + newDescription: ServerDescription + ) { + this.topologyId = topologyId; + this.address = address; + this.previousDescription = previousDescription; + this.newDescription = newDescription; + } +} + +/** + * Emitted when server is initialized. + * @public + * @category Event + */ +export class ServerOpeningEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The address (host/port pair) of the server */ + address: string; + /** @internal */ + name = SERVER_OPENING; + + /** @internal */ + constructor(topologyId: number, address: string) { + this.topologyId = topologyId; + this.address = address; + } +} + +/** + * Emitted when server is closed. + * @public + * @category Event + */ +export class ServerClosedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The address (host/port pair) of the server */ + address: string; + /** @internal */ + name = SERVER_CLOSED; + + /** @internal */ + constructor(topologyId: number, address: string) { + this.topologyId = topologyId; + this.address = address; + } +} + +/** + * Emitted when topology description changes. + * @public + * @category Event + */ +export class TopologyDescriptionChangedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** The old topology description */ + previousDescription: TopologyDescription; + /** The new topology description */ + newDescription: TopologyDescription; + /** @internal */ + name = TOPOLOGY_DESCRIPTION_CHANGED; + + /** @internal */ + constructor( + topologyId: number, + previousDescription: TopologyDescription, + newDescription: TopologyDescription + ) { + this.topologyId = topologyId; + this.previousDescription = previousDescription; + this.newDescription = newDescription; + } +} + +/** + * Emitted when topology is initialized. + * @public + * @category Event + */ +export class TopologyOpeningEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** @internal */ + name = TOPOLOGY_OPENING; + + /** @internal */ + constructor(topologyId: number) { + this.topologyId = topologyId; + } +} + +/** + * Emitted when topology is closed. + * @public + * @category Event + */ +export class TopologyClosedEvent { + /** A unique identifier for the topology */ + topologyId: number; + /** @internal */ + name = TOPOLOGY_CLOSED; + + /** @internal */ + constructor(topologyId: number) { + this.topologyId = topologyId; + } +} + +/** + * Emitted when the server monitor’s hello command is started - immediately before + * the hello command is serialized into raw BSON and written to the socket. + * + * @public + * @category Event + */ +export class ServerHeartbeatStartedEvent { + /** The connection id for the command */ + connectionId: string; + /** Is true when using the streaming protocol */ + awaited: boolean; + /** @internal */ + name = SERVER_HEARTBEAT_STARTED; + + /** @internal */ + constructor(connectionId: string, awaited: boolean) { + this.connectionId = connectionId; + this.awaited = awaited; + } +} + +/** + * Emitted when the server monitor’s hello succeeds. + * @public + * @category Event + */ +export class ServerHeartbeatSucceededEvent { + /** The connection id for the command */ + connectionId: string; + /** The execution time of the event in ms */ + duration: number; + /** The command reply */ + reply: Document; + /** Is true when using the streaming protocol */ + awaited: boolean; + /** @internal */ + name = SERVER_HEARTBEAT_SUCCEEDED; + + /** @internal */ + constructor(connectionId: string, duration: number, reply: Document | null, awaited: boolean) { + this.connectionId = connectionId; + this.duration = duration; + this.reply = reply ?? {}; + this.awaited = awaited; + } +} + +/** + * Emitted when the server monitor’s hello fails, either with an “ok: 0” or a socket exception. + * @public + * @category Event + */ +export class ServerHeartbeatFailedEvent { + /** The connection id for the command */ + connectionId: string; + /** The execution time of the event in ms */ + duration: number; + /** The command failure */ + failure: Error; + /** Is true when using the streaming protocol */ + awaited: boolean; + /** @internal */ + name = SERVER_HEARTBEAT_FAILED; + + /** @internal */ + constructor(connectionId: string, duration: number, failure: Error, awaited: boolean) { + this.connectionId = connectionId; + this.duration = duration; + this.failure = failure; + this.awaited = awaited; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/monitor.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/monitor.ts new file mode 100644 index 000000000..baf75b633 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/monitor.ts @@ -0,0 +1,779 @@ +import { clearTimeout, setTimeout } from 'timers'; + +import { type Document, Long } from '../bson'; +import { connect, makeConnection, makeSocket, performInitialHandshake } from '../cmap/connect'; +import type { Connection, ConnectionOptions } from '../cmap/connection'; +import { getFAASEnv } from '../cmap/handshake/client_metadata'; +import { LEGACY_HELLO_COMMAND } from '../constants'; +import { MongoError, MongoErrorLabel, MongoNetworkTimeoutError } from '../error'; +import { MongoLoggableComponent } from '../mongo_logger'; +import { CancellationToken, TypedEventEmitter } from '../mongo_types'; +import { + calculateDurationInMs, + type Callback, + type EventEmitterWithState, + makeStateMachine, + now, + ns +} from '../utils'; +import { ServerType, STATE_CLOSED, STATE_CLOSING } from './common'; +import { + ServerHeartbeatFailedEvent, + ServerHeartbeatStartedEvent, + ServerHeartbeatSucceededEvent +} from './events'; +import { Server } from './server'; +import type { TopologyVersion } from './server_description'; + +/** @internal */ +const kServer = Symbol('server'); +/** @internal */ +const kMonitorId = Symbol('monitorId'); +/** @internal */ +const kCancellationToken = Symbol('cancellationToken'); + +const STATE_IDLE = 'idle'; +const STATE_MONITORING = 'monitoring'; +const stateTransition = makeStateMachine({ + [STATE_CLOSING]: [STATE_CLOSING, STATE_IDLE, STATE_CLOSED], + [STATE_CLOSED]: [STATE_CLOSED, STATE_MONITORING], + [STATE_IDLE]: [STATE_IDLE, STATE_MONITORING, STATE_CLOSING], + [STATE_MONITORING]: [STATE_MONITORING, STATE_IDLE, STATE_CLOSING] +}); + +const INVALID_REQUEST_CHECK_STATES = new Set([STATE_CLOSING, STATE_CLOSED, STATE_MONITORING]); +function isInCloseState(monitor: Monitor) { + return monitor.s.state === STATE_CLOSED || monitor.s.state === STATE_CLOSING; +} + +/** @public */ +export const ServerMonitoringMode = Object.freeze({ + auto: 'auto', + poll: 'poll', + stream: 'stream' +} as const); + +/** @public */ +export type ServerMonitoringMode = (typeof ServerMonitoringMode)[keyof typeof ServerMonitoringMode]; + +/** @internal */ +export interface MonitorPrivate { + state: string; +} + +/** @public */ +export interface MonitorOptions + extends Omit { + connectTimeoutMS: number; + heartbeatFrequencyMS: number; + minHeartbeatFrequencyMS: number; + serverMonitoringMode: ServerMonitoringMode; +} + +/** @public */ +export type MonitorEvents = { + serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void; + serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void; + serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void; + resetServer(error?: MongoError): void; + resetConnectionPool(): void; + close(): void; +} & EventEmitterWithState; + +/** @internal */ +export class Monitor extends TypedEventEmitter { + /** @internal */ + s: MonitorPrivate; + address: string; + options: Readonly< + Pick< + MonitorOptions, + | 'connectTimeoutMS' + | 'heartbeatFrequencyMS' + | 'minHeartbeatFrequencyMS' + | 'serverMonitoringMode' + > + >; + connectOptions: ConnectionOptions; + isRunningInFaasEnv: boolean; + [kServer]: Server; + connection: Connection | null; + [kCancellationToken]: CancellationToken; + /** @internal */ + [kMonitorId]?: MonitorInterval; + rttPinger?: RTTPinger; + /** @internal */ + override component = MongoLoggableComponent.TOPOLOGY; + /** @internal */ + private rttSampler: RTTSampler; + + constructor(server: Server, options: MonitorOptions) { + super(); + + this[kServer] = server; + this.connection = null; + this[kCancellationToken] = new CancellationToken(); + this[kCancellationToken].setMaxListeners(Infinity); + this[kMonitorId] = undefined; + this.s = { + state: STATE_CLOSED + }; + this.address = server.description.address; + this.options = Object.freeze({ + connectTimeoutMS: options.connectTimeoutMS ?? 10000, + heartbeatFrequencyMS: options.heartbeatFrequencyMS ?? 10000, + minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS ?? 500, + serverMonitoringMode: options.serverMonitoringMode + }); + this.isRunningInFaasEnv = getFAASEnv() != null; + this.mongoLogger = this[kServer].topology.client?.mongoLogger; + this.rttSampler = new RTTSampler(10); + + const cancellationToken = this[kCancellationToken]; + // TODO: refactor this to pull it directly from the pool, requires new ConnectionPool integration + const connectOptions = { + id: '' as const, + generation: server.pool.generation, + cancellationToken, + hostAddress: server.description.hostAddress, + ...options, + // force BSON serialization options + raw: false, + useBigInt64: false, + promoteLongs: true, + promoteValues: true, + promoteBuffers: true + }; + + // ensure no authentication is used for monitoring + delete connectOptions.credentials; + if (connectOptions.autoEncrypter) { + delete connectOptions.autoEncrypter; + } + + this.connectOptions = Object.freeze(connectOptions); + } + + connect(): void { + if (this.s.state !== STATE_CLOSED) { + return; + } + + // start + const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS; + const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS; + this[kMonitorId] = new MonitorInterval(monitorServer(this), { + heartbeatFrequencyMS: heartbeatFrequencyMS, + minHeartbeatFrequencyMS: minHeartbeatFrequencyMS, + immediate: true + }); + } + + requestCheck(): void { + if (INVALID_REQUEST_CHECK_STATES.has(this.s.state)) { + return; + } + + this[kMonitorId]?.wake(); + } + + reset(): void { + const topologyVersion = this[kServer].description.topologyVersion; + if (isInCloseState(this) || topologyVersion == null) { + return; + } + + stateTransition(this, STATE_CLOSING); + resetMonitorState(this); + + // restart monitor + stateTransition(this, STATE_IDLE); + + // restart monitoring + const heartbeatFrequencyMS = this.options.heartbeatFrequencyMS; + const minHeartbeatFrequencyMS = this.options.minHeartbeatFrequencyMS; + this[kMonitorId] = new MonitorInterval(monitorServer(this), { + heartbeatFrequencyMS: heartbeatFrequencyMS, + minHeartbeatFrequencyMS: minHeartbeatFrequencyMS + }); + } + + close(): void { + if (isInCloseState(this)) { + return; + } + + stateTransition(this, STATE_CLOSING); + resetMonitorState(this); + + // close monitor + this.emit('close'); + stateTransition(this, STATE_CLOSED); + } + + get roundTripTime(): number { + return this.rttSampler.average(); + } + + get minRoundTripTime(): number { + return this.rttSampler.min(); + } + + get latestRtt(): number | null { + return this.rttSampler.last; + } + + addRttSample(rtt: number) { + this.rttSampler.addSample(rtt); + } + + clearRttSamples() { + this.rttSampler.clear(); + } +} + +function resetMonitorState(monitor: Monitor) { + monitor[kMonitorId]?.stop(); + monitor[kMonitorId] = undefined; + + monitor.rttPinger?.close(); + monitor.rttPinger = undefined; + + monitor[kCancellationToken].emit('cancel'); + + monitor.connection?.destroy(); + monitor.connection = null; + + monitor.clearRttSamples(); +} + +function useStreamingProtocol(monitor: Monitor, topologyVersion: TopologyVersion | null): boolean { + // If we have no topology version we always poll no matter + // what the user provided, since the server does not support + // the streaming protocol. + if (topologyVersion == null) return false; + + const serverMonitoringMode = monitor.options.serverMonitoringMode; + if (serverMonitoringMode === ServerMonitoringMode.poll) return false; + if (serverMonitoringMode === ServerMonitoringMode.stream) return true; + + // If we are in auto mode, we need to figure out if we're in a FaaS + // environment or not and choose the appropriate mode. + if (monitor.isRunningInFaasEnv) return false; + return true; +} + +function checkServer(monitor: Monitor, callback: Callback) { + let start: number; + let awaited: boolean; + const topologyVersion = monitor[kServer].description.topologyVersion; + const isAwaitable = useStreamingProtocol(monitor, topologyVersion); + monitor.emitAndLogHeartbeat( + Server.SERVER_HEARTBEAT_STARTED, + monitor[kServer].topology.s.id, + undefined, + new ServerHeartbeatStartedEvent(monitor.address, isAwaitable) + ); + + function onHeartbeatFailed(err: Error) { + monitor.connection?.destroy(); + monitor.connection = null; + monitor.emitAndLogHeartbeat( + Server.SERVER_HEARTBEAT_FAILED, + monitor[kServer].topology.s.id, + undefined, + new ServerHeartbeatFailedEvent(monitor.address, calculateDurationInMs(start), err, awaited) + ); + + const error = !(err instanceof MongoError) + ? new MongoError(MongoError.buildErrorMessage(err), { cause: err }) + : err; + error.addErrorLabel(MongoErrorLabel.ResetPool); + if (error instanceof MongoNetworkTimeoutError) { + error.addErrorLabel(MongoErrorLabel.InterruptInUseConnections); + } + + monitor.emit('resetServer', error); + callback(err); + } + + function onHeartbeatSucceeded(hello: Document) { + if (!('isWritablePrimary' in hello)) { + // Provide hello-style response document. + hello.isWritablePrimary = hello[LEGACY_HELLO_COMMAND]; + } + + // NOTE: here we use the latestRtt as this measurement corresponds with the value + // obtained for this successful heartbeat, if there is no latestRtt, then we calculate the + // duration + const duration = + isAwaitable && monitor.rttPinger + ? monitor.rttPinger.latestRtt ?? calculateDurationInMs(start) + : calculateDurationInMs(start); + + monitor.addRttSample(duration); + + monitor.emitAndLogHeartbeat( + Server.SERVER_HEARTBEAT_SUCCEEDED, + monitor[kServer].topology.s.id, + hello.connectionId, + new ServerHeartbeatSucceededEvent(monitor.address, duration, hello, isAwaitable) + ); + + if (isAwaitable) { + // If we are using the streaming protocol then we immediately issue another 'started' + // event, otherwise the "check" is complete and return to the main monitor loop + monitor.emitAndLogHeartbeat( + Server.SERVER_HEARTBEAT_STARTED, + monitor[kServer].topology.s.id, + undefined, + new ServerHeartbeatStartedEvent(monitor.address, true) + ); + // We have not actually sent an outgoing handshake, but when we get the next response we + // want the duration to reflect the time since we last heard from the server + start = now(); + } else { + monitor.rttPinger?.close(); + monitor.rttPinger = undefined; + + callback(undefined, hello); + } + } + + const { connection } = monitor; + if (connection && !connection.closed) { + const { serverApi, helloOk } = connection; + const connectTimeoutMS = monitor.options.connectTimeoutMS; + const maxAwaitTimeMS = monitor.options.heartbeatFrequencyMS; + + const cmd = { + [serverApi?.version || helloOk ? 'hello' : LEGACY_HELLO_COMMAND]: 1, + ...(isAwaitable && topologyVersion + ? { maxAwaitTimeMS, topologyVersion: makeTopologyVersion(topologyVersion) } + : {}) + }; + + const options = isAwaitable + ? { + socketTimeoutMS: connectTimeoutMS ? connectTimeoutMS + maxAwaitTimeMS : 0, + exhaustAllowed: true + } + : { socketTimeoutMS: connectTimeoutMS }; + + if (isAwaitable && monitor.rttPinger == null) { + monitor.rttPinger = new RTTPinger(monitor); + } + + // Record new start time before sending handshake + start = now(); + + if (isAwaitable) { + awaited = true; + return connection.exhaustCommand(ns('admin.$cmd'), cmd, options, (error, hello) => { + if (error) return onHeartbeatFailed(error); + return onHeartbeatSucceeded(hello); + }); + } + + awaited = false; + connection + .command(ns('admin.$cmd'), cmd, options) + // eslint-disable-next-line github/no-then + .then(onHeartbeatSucceeded, onHeartbeatFailed); + + return; + } + + // connecting does an implicit `hello` + (async () => { + const socket = await makeSocket(monitor.connectOptions); + const connection = makeConnection(monitor.connectOptions, socket); + // The start time is after socket creation but before the handshake + start = now(); + try { + await performInitialHandshake(connection, monitor.connectOptions); + return connection; + } catch (error) { + connection.destroy(); + throw error; + } + // eslint-disable-next-line github/no-then + })().then( + connection => { + if (isInCloseState(monitor)) { + connection.destroy(); + return; + } + const duration = calculateDurationInMs(start); + monitor.addRttSample(duration); + + monitor.connection = connection; + monitor.emitAndLogHeartbeat( + Server.SERVER_HEARTBEAT_SUCCEEDED, + monitor[kServer].topology.s.id, + connection.hello?.connectionId, + new ServerHeartbeatSucceededEvent( + monitor.address, + duration, + connection.hello, + useStreamingProtocol(monitor, connection.hello?.topologyVersion) + ) + ); + + callback(undefined, connection.hello); + }, + error => { + monitor.connection = null; + awaited = false; + onHeartbeatFailed(error); + } + ); +} + +function monitorServer(monitor: Monitor) { + return (callback: Callback) => { + if (monitor.s.state === STATE_MONITORING) { + process.nextTick(callback); + return; + } + stateTransition(monitor, STATE_MONITORING); + function done() { + if (!isInCloseState(monitor)) { + stateTransition(monitor, STATE_IDLE); + } + + callback(); + } + + checkServer(monitor, (err, hello) => { + if (err) { + // otherwise an error occurred on initial discovery, also bail + if (monitor[kServer].description.type === ServerType.Unknown) { + return done(); + } + } + + // if the check indicates streaming is supported, immediately reschedule monitoring + if (useStreamingProtocol(monitor, hello?.topologyVersion)) { + setTimeout(() => { + if (!isInCloseState(monitor)) { + monitor[kMonitorId]?.wake(); + } + }, 0); + } + + done(); + }); + }; +} + +function makeTopologyVersion(tv: TopologyVersion) { + return { + processId: tv.processId, + // tests mock counter as just number, but in a real situation counter should always be a Long + // TODO(NODE-2674): Preserve int64 sent from MongoDB + counter: Long.isLong(tv.counter) ? tv.counter : Long.fromNumber(tv.counter) + }; +} + +/** @internal */ +export interface RTTPingerOptions extends ConnectionOptions { + heartbeatFrequencyMS: number; +} + +/** @internal */ +export class RTTPinger { + connection?: Connection; + /** @internal */ + [kCancellationToken]: CancellationToken; + /** @internal */ + [kMonitorId]: NodeJS.Timeout; + /** @internal */ + monitor: Monitor; + closed: boolean; + /** @internal */ + latestRtt?: number; + + constructor(monitor: Monitor) { + this.connection = undefined; + this[kCancellationToken] = monitor[kCancellationToken]; + this.closed = false; + this.monitor = monitor; + this.latestRtt = monitor.latestRtt ?? undefined; + + const heartbeatFrequencyMS = monitor.options.heartbeatFrequencyMS; + this[kMonitorId] = setTimeout(() => this.measureRoundTripTime(), heartbeatFrequencyMS); + } + + get roundTripTime(): number { + return this.monitor.roundTripTime; + } + + get minRoundTripTime(): number { + return this.monitor.minRoundTripTime; + } + + close(): void { + this.closed = true; + clearTimeout(this[kMonitorId]); + + this.connection?.destroy(); + this.connection = undefined; + } + + private measureAndReschedule(start: number, conn?: Connection) { + if (this.closed) { + conn?.destroy(); + return; + } + + if (this.connection == null) { + this.connection = conn; + } + + this.latestRtt = calculateDurationInMs(start); + this[kMonitorId] = setTimeout( + () => this.measureRoundTripTime(), + this.monitor.options.heartbeatFrequencyMS + ); + } + + private measureRoundTripTime() { + const start = now(); + + if (this.closed) { + return; + } + + const connection = this.connection; + if (connection == null) { + // eslint-disable-next-line github/no-then + connect(this.monitor.connectOptions).then( + connection => { + this.measureAndReschedule(start, connection); + }, + () => { + this.connection = undefined; + } + ); + return; + } + + const commandName = + connection.serverApi?.version || connection.helloOk ? 'hello' : LEGACY_HELLO_COMMAND; + // eslint-disable-next-line github/no-then + connection.command(ns('admin.$cmd'), { [commandName]: 1 }, undefined).then( + () => this.measureAndReschedule(start), + () => { + this.connection?.destroy(); + this.connection = undefined; + return; + } + ); + } +} + +/** + * @internal + */ +export interface MonitorIntervalOptions { + /** The interval to execute a method on */ + heartbeatFrequencyMS: number; + /** A minimum interval that must elapse before the method is called */ + minHeartbeatFrequencyMS: number; + /** Whether the method should be called immediately when the interval is started */ + immediate: boolean; +} + +/** + * @internal + */ +export class MonitorInterval { + fn: (callback: Callback) => void; + timerId: NodeJS.Timeout | undefined; + lastExecutionEnded: number; + isExpeditedCallToFnScheduled = false; + stopped = false; + isExecutionInProgress = false; + hasExecutedOnce = false; + + heartbeatFrequencyMS: number; + minHeartbeatFrequencyMS: number; + + constructor(fn: (callback: Callback) => void, options: Partial = {}) { + this.fn = fn; + this.lastExecutionEnded = -Infinity; + + this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 1000; + this.minHeartbeatFrequencyMS = options.minHeartbeatFrequencyMS ?? 500; + + if (options.immediate) { + this._executeAndReschedule(); + } else { + this._reschedule(undefined); + } + } + + wake() { + const currentTime = now(); + const timeSinceLastCall = currentTime - this.lastExecutionEnded; + + // TODO(NODE-4674): Add error handling and logging to the monitor + if (timeSinceLastCall < 0) { + return this._executeAndReschedule(); + } + + if (this.isExecutionInProgress) { + return; + } + + // debounce multiple calls to wake within the `minInterval` + if (this.isExpeditedCallToFnScheduled) { + return; + } + + // reschedule a call as soon as possible, ensuring the call never happens + // faster than the `minInterval` + if (timeSinceLastCall < this.minHeartbeatFrequencyMS) { + this.isExpeditedCallToFnScheduled = true; + this._reschedule(this.minHeartbeatFrequencyMS - timeSinceLastCall); + return; + } + + this._executeAndReschedule(); + } + + stop() { + this.stopped = true; + if (this.timerId) { + clearTimeout(this.timerId); + this.timerId = undefined; + } + + this.lastExecutionEnded = -Infinity; + this.isExpeditedCallToFnScheduled = false; + } + + toString() { + return JSON.stringify(this); + } + + toJSON() { + const currentTime = now(); + const timeSinceLastCall = currentTime - this.lastExecutionEnded; + return { + timerId: this.timerId != null ? 'set' : 'cleared', + lastCallTime: this.lastExecutionEnded, + isExpeditedCheckScheduled: this.isExpeditedCallToFnScheduled, + stopped: this.stopped, + heartbeatFrequencyMS: this.heartbeatFrequencyMS, + minHeartbeatFrequencyMS: this.minHeartbeatFrequencyMS, + currentTime, + timeSinceLastCall + }; + } + + private _reschedule(ms?: number) { + if (this.stopped) return; + if (this.timerId) { + clearTimeout(this.timerId); + } + + this.timerId = setTimeout(this._executeAndReschedule, ms || this.heartbeatFrequencyMS); + } + + private _executeAndReschedule = () => { + if (this.stopped) return; + if (this.timerId) { + clearTimeout(this.timerId); + } + + this.isExpeditedCallToFnScheduled = false; + this.isExecutionInProgress = true; + + this.fn(() => { + this.lastExecutionEnded = now(); + this.isExecutionInProgress = false; + this._reschedule(this.heartbeatFrequencyMS); + }); + }; +} + +/** @internal + * This class implements the RTT sampling logic specified for [CSOT](https://github.com/mongodb/specifications/blob/bbb335e60cd7ea1e0f7cd9a9443cb95fc9d3b64d/source/client-side-operations-timeout/client-side-operations-timeout.md#drivers-use-minimum-rtt-to-short-circuit-operations) + * + * This is implemented as a [circular buffer](https://en.wikipedia.org/wiki/Circular_buffer) keeping + * the most recent `windowSize` samples + * */ +export class RTTSampler { + /** Index of the next slot to be overwritten */ + private writeIndex: number; + private length: number; + private rttSamples: Float64Array; + + constructor(windowSize = 10) { + this.rttSamples = new Float64Array(windowSize); + this.length = 0; + this.writeIndex = 0; + } + + /** + * Adds an rtt sample to the end of the circular buffer + * When `windowSize` samples have been collected, `addSample` overwrites the least recently added + * sample + */ + addSample(sample: number) { + this.rttSamples[this.writeIndex++] = sample; + if (this.length < this.rttSamples.length) { + this.length++; + } + + this.writeIndex %= this.rttSamples.length; + } + + /** + * When \< 2 samples have been collected, returns 0 + * Otherwise computes the minimum value samples contained in the buffer + */ + min(): number { + if (this.length < 2) return 0; + let min = this.rttSamples[0]; + for (let i = 1; i < this.length; i++) { + if (this.rttSamples[i] < min) min = this.rttSamples[i]; + } + + return min; + } + + /** + * Returns mean of samples contained in the buffer + */ + average(): number { + if (this.length === 0) return 0; + let sum = 0; + for (let i = 0; i < this.length; i++) { + sum += this.rttSamples[i]; + } + + return sum / this.length; + } + + /** + * Returns most recently inserted element in the buffer + * Returns null if the buffer is empty + * */ + get last(): number | null { + if (this.length === 0) return null; + return this.rttSamples[this.writeIndex === 0 ? this.length - 1 : this.writeIndex - 1]; + } + + /** + * Clear the buffer + * NOTE: this does not overwrite the data held in the internal array, just the pointers into + * this array + */ + clear() { + this.length = 0; + this.writeIndex = 0; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server.ts new file mode 100644 index 000000000..8ea91815c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server.ts @@ -0,0 +1,542 @@ +import type { Document } from '../bson'; +import { type AutoEncrypter } from '../client-side-encryption/auto_encrypter'; +import { type CommandOptions, Connection } from '../cmap/connection'; +import { + ConnectionPool, + type ConnectionPoolEvents, + type ConnectionPoolOptions +} from '../cmap/connection_pool'; +import { PoolClearedError } from '../cmap/errors'; +import { type MongoDBResponseConstructor } from '../cmap/wire_protocol/responses'; +import { + APM_EVENTS, + CLOSED, + CMAP_EVENTS, + CONNECT, + DESCRIPTION_RECEIVED, + ENDED, + HEARTBEAT_EVENTS, + SERVER_HEARTBEAT_FAILED, + SERVER_HEARTBEAT_STARTED, + SERVER_HEARTBEAT_SUCCEEDED +} from '../constants'; +import { + type AnyError, + isNetworkErrorBeforeHandshake, + isNodeShuttingDownError, + isSDAMUnrecoverableError, + MONGODB_ERROR_CODES, + MongoError, + MongoErrorLabel, + MongoInvalidArgumentError, + MongoNetworkError, + MongoNetworkTimeoutError, + MongoRuntimeError, + MongoServerClosedError, + type MongoServerError, + needsRetryableWriteLabel +} from '../error'; +import type { ServerApi } from '../mongo_client'; +import { TypedEventEmitter } from '../mongo_types'; +import type { GetMoreOptions } from '../operations/get_more'; +import type { ClientSession } from '../sessions'; +import { isTransactionCommand } from '../transactions'; +import { + type EventEmitterWithState, + makeStateMachine, + maxWireVersion, + type MongoDBNamespace, + supportsRetryableWrites +} from '../utils'; +import { + type ClusterTime, + STATE_CLOSED, + STATE_CLOSING, + STATE_CONNECTED, + STATE_CONNECTING, + TopologyType +} from './common'; +import type { + ServerHeartbeatFailedEvent, + ServerHeartbeatStartedEvent, + ServerHeartbeatSucceededEvent +} from './events'; +import { Monitor, type MonitorOptions } from './monitor'; +import { compareTopologyVersion, ServerDescription } from './server_description'; +import type { Topology } from './topology'; + +const stateTransition = makeStateMachine({ + [STATE_CLOSED]: [STATE_CLOSED, STATE_CONNECTING], + [STATE_CONNECTING]: [STATE_CONNECTING, STATE_CLOSING, STATE_CONNECTED, STATE_CLOSED], + [STATE_CONNECTED]: [STATE_CONNECTED, STATE_CLOSING, STATE_CLOSED], + [STATE_CLOSING]: [STATE_CLOSING, STATE_CLOSED] +}); + +/** @internal */ +export type ServerOptions = Omit & + MonitorOptions; + +/** @internal */ +export interface ServerPrivate { + /** The server description for this server */ + description: ServerDescription; + /** A copy of the options used to construct this instance */ + options: ServerOptions; + /** The current state of the Server */ + state: string; + /** MongoDB server API version */ + serverApi?: ServerApi; + /** A count of the operations currently running against the server. */ + operationCount: number; +} + +/** @public */ +export type ServerEvents = { + serverHeartbeatStarted(event: ServerHeartbeatStartedEvent): void; + serverHeartbeatSucceeded(event: ServerHeartbeatSucceededEvent): void; + serverHeartbeatFailed(event: ServerHeartbeatFailedEvent): void; + /** Top level MongoClient doesn't emit this so it is marked: @internal */ + connect(server: Server): void; + descriptionReceived(description: ServerDescription): void; + closed(): void; + ended(): void; +} & ConnectionPoolEvents & + EventEmitterWithState; + +/** @internal */ +export class Server extends TypedEventEmitter { + /** @internal */ + s: ServerPrivate; + /** @internal */ + topology: Topology; + /** @internal */ + pool: ConnectionPool; + serverApi?: ServerApi; + hello?: Document; + monitor: Monitor | null; + + /** @event */ + static readonly SERVER_HEARTBEAT_STARTED = SERVER_HEARTBEAT_STARTED; + /** @event */ + static readonly SERVER_HEARTBEAT_SUCCEEDED = SERVER_HEARTBEAT_SUCCEEDED; + /** @event */ + static readonly SERVER_HEARTBEAT_FAILED = SERVER_HEARTBEAT_FAILED; + /** @event */ + static readonly CONNECT = CONNECT; + /** @event */ + static readonly DESCRIPTION_RECEIVED = DESCRIPTION_RECEIVED; + /** @event */ + static readonly CLOSED = CLOSED; + /** @event */ + static readonly ENDED = ENDED; + + /** + * Create a server + */ + constructor(topology: Topology, description: ServerDescription, options: ServerOptions) { + super(); + + this.serverApi = options.serverApi; + + const poolOptions = { hostAddress: description.hostAddress, ...options }; + + this.topology = topology; + this.pool = new ConnectionPool(this, poolOptions); + + this.s = { + description, + options, + state: STATE_CLOSED, + operationCount: 0 + }; + + for (const event of [...CMAP_EVENTS, ...APM_EVENTS]) { + this.pool.on(event, (e: any) => this.emit(event, e)); + } + + this.pool.on(Connection.CLUSTER_TIME_RECEIVED, (clusterTime: ClusterTime) => { + this.clusterTime = clusterTime; + }); + + if (this.loadBalanced) { + this.monitor = null; + // monitoring is disabled in load balancing mode + return; + } + + // create the monitor + this.monitor = new Monitor(this, this.s.options); + + for (const event of HEARTBEAT_EVENTS) { + this.monitor.on(event, (e: any) => this.emit(event, e)); + } + + this.monitor.on('resetServer', (error: MongoServerError) => markServerUnknown(this, error)); + this.monitor.on(Server.SERVER_HEARTBEAT_SUCCEEDED, (event: ServerHeartbeatSucceededEvent) => { + this.emit( + Server.DESCRIPTION_RECEIVED, + new ServerDescription(this.description.hostAddress, event.reply, { + roundTripTime: this.monitor?.roundTripTime, + minRoundTripTime: this.monitor?.minRoundTripTime + }) + ); + + if (this.s.state === STATE_CONNECTING) { + stateTransition(this, STATE_CONNECTED); + this.emit(Server.CONNECT, this); + } + }); + } + + get clusterTime(): ClusterTime | undefined { + return this.topology.clusterTime; + } + + set clusterTime(clusterTime: ClusterTime | undefined) { + this.topology.clusterTime = clusterTime; + } + + get description(): ServerDescription { + return this.s.description; + } + + get name(): string { + return this.s.description.address; + } + + get autoEncrypter(): AutoEncrypter | undefined { + if (this.s.options && this.s.options.autoEncrypter) { + return this.s.options.autoEncrypter; + } + return; + } + + get loadBalanced(): boolean { + return this.topology.description.type === TopologyType.LoadBalanced; + } + + /** + * Initiate server connect + */ + connect(): void { + if (this.s.state !== STATE_CLOSED) { + return; + } + + stateTransition(this, STATE_CONNECTING); + + // If in load balancer mode we automatically set the server to + // a load balancer. It never transitions out of this state and + // has no monitor. + if (!this.loadBalanced) { + this.monitor?.connect(); + } else { + stateTransition(this, STATE_CONNECTED); + this.emit(Server.CONNECT, this); + } + } + + /** Destroy the server connection */ + destroy(): void { + if (this.s.state === STATE_CLOSED) { + return; + } + + stateTransition(this, STATE_CLOSING); + + if (!this.loadBalanced) { + this.monitor?.close(); + } + + this.pool.close(); + stateTransition(this, STATE_CLOSED); + this.emit('closed'); + } + + /** + * Immediately schedule monitoring of this server. If there already an attempt being made + * this will be a no-op. + */ + requestCheck(): void { + if (!this.loadBalanced) { + this.monitor?.requestCheck(); + } + } + + public async command( + ns: MongoDBNamespace, + command: Document, + options: CommandOptions | undefined, + responseType: T | undefined + ): Promise>; + + public async command( + ns: MongoDBNamespace, + command: Document, + options?: CommandOptions + ): Promise; + + public async command( + ns: MongoDBNamespace, + cmd: Document, + options: CommandOptions, + responseType?: MongoDBResponseConstructor + ): Promise { + if (ns.db == null || typeof ns === 'string') { + throw new MongoInvalidArgumentError('Namespace must not be a string'); + } + + if (this.s.state === STATE_CLOSING || this.s.state === STATE_CLOSED) { + throw new MongoServerClosedError(); + } + + // Clone the options + const finalOptions = Object.assign({}, options, { + wireProtocolCommand: false, + directConnection: this.topology.s.options.directConnection + }); + + // There are cases where we need to flag the read preference not to get sent in + // the command, such as pre-5.0 servers attempting to perform an aggregate write + // with a non-primary read preference. In this case the effective read preference + // (primary) is not the same as the provided and must be removed completely. + if (finalOptions.omitReadPreference) { + delete finalOptions.readPreference; + } + + const session = finalOptions.session; + let conn = session?.pinnedConnection; + + this.incrementOperationCount(); + if (conn == null) { + try { + conn = await this.pool.checkOut(); + if (this.loadBalanced && isPinnableCommand(cmd, session)) { + session?.pin(conn); + } + } catch (checkoutError) { + this.decrementOperationCount(); + if (!(checkoutError instanceof PoolClearedError)) this.handleError(checkoutError); + throw checkoutError; + } + } + + try { + try { + return await conn.command(ns, cmd, finalOptions, responseType); + } catch (commandError) { + throw this.decorateCommandError(conn, cmd, finalOptions, commandError); + } + } catch (operationError) { + if ( + operationError instanceof MongoError && + operationError.code === MONGODB_ERROR_CODES.Reauthenticate + ) { + await this.pool.reauthenticate(conn); + try { + return await conn.command(ns, cmd, finalOptions, responseType); + } catch (commandError) { + throw this.decorateCommandError(conn, cmd, finalOptions, commandError); + } + } else { + throw operationError; + } + } finally { + this.decrementOperationCount(); + if (session?.pinnedConnection !== conn) { + this.pool.checkIn(conn); + } + } + } + + /** + * Handle SDAM error + * @internal + */ + handleError(error: AnyError, connection?: Connection) { + if (!(error instanceof MongoError)) { + return; + } + + const isStaleError = + error.connectionGeneration && error.connectionGeneration < this.pool.generation; + if (isStaleError) { + return; + } + + const isNetworkNonTimeoutError = + error instanceof MongoNetworkError && !(error instanceof MongoNetworkTimeoutError); + const isNetworkTimeoutBeforeHandshakeError = isNetworkErrorBeforeHandshake(error); + const isAuthHandshakeError = error.hasErrorLabel(MongoErrorLabel.HandshakeError); + if (isNetworkNonTimeoutError || isNetworkTimeoutBeforeHandshakeError || isAuthHandshakeError) { + // In load balanced mode we never mark the server as unknown and always + // clear for the specific service id. + if (!this.loadBalanced) { + error.addErrorLabel(MongoErrorLabel.ResetPool); + markServerUnknown(this, error); + } else if (connection) { + this.pool.clear({ serviceId: connection.serviceId }); + } + } else { + if (isSDAMUnrecoverableError(error)) { + if (shouldHandleStateChangeError(this, error)) { + const shouldClearPool = maxWireVersion(this) <= 7 || isNodeShuttingDownError(error); + if (this.loadBalanced && connection && shouldClearPool) { + this.pool.clear({ serviceId: connection.serviceId }); + } + + if (!this.loadBalanced) { + if (shouldClearPool) { + error.addErrorLabel(MongoErrorLabel.ResetPool); + } + markServerUnknown(this, error); + process.nextTick(() => this.requestCheck()); + } + } + } + } + } + + /** + * Ensure that error is properly decorated and internal state is updated before throwing + * @internal + */ + private decorateCommandError( + connection: Connection, + cmd: Document, + options: CommandOptions | GetMoreOptions | undefined, + error: unknown + ): Error { + if (typeof error !== 'object' || error == null || !('name' in error)) { + throw new MongoRuntimeError('An unexpected error type: ' + typeof error); + } + + if (error.name === 'AbortError' && 'cause' in error && error.cause instanceof MongoError) { + error = error.cause; + } + + if (!(error instanceof MongoError)) { + // Node.js or some other error we have not special handling for + return error as Error; + } + + if (connectionIsStale(this.pool, connection)) { + return error; + } + + const session = options?.session; + if (error instanceof MongoNetworkError) { + if (session && !session.hasEnded && session.serverSession) { + session.serverSession.isDirty = true; + } + + // inActiveTransaction check handles commit and abort. + if ( + inActiveTransaction(session, cmd) && + !error.hasErrorLabel(MongoErrorLabel.TransientTransactionError) + ) { + error.addErrorLabel(MongoErrorLabel.TransientTransactionError); + } + + if ( + (isRetryableWritesEnabled(this.topology) || isTransactionCommand(cmd)) && + supportsRetryableWrites(this) && + !inActiveTransaction(session, cmd) + ) { + error.addErrorLabel(MongoErrorLabel.RetryableWriteError); + } + } else { + if ( + (isRetryableWritesEnabled(this.topology) || isTransactionCommand(cmd)) && + needsRetryableWriteLabel(error, maxWireVersion(this)) && + !inActiveTransaction(session, cmd) + ) { + error.addErrorLabel(MongoErrorLabel.RetryableWriteError); + } + } + + if ( + session && + session.isPinned && + error.hasErrorLabel(MongoErrorLabel.TransientTransactionError) + ) { + session.unpin({ force: true }); + } + + this.handleError(error, connection); + + return error; + } + + /** + * Decrement the operation count, returning the new count. + */ + private decrementOperationCount(): number { + return (this.s.operationCount -= 1); + } + + /** + * Increment the operation count, returning the new count. + */ + private incrementOperationCount(): number { + return (this.s.operationCount += 1); + } +} + +function markServerUnknown(server: Server, error?: MongoError) { + // Load balancer servers can never be marked unknown. + if (server.loadBalanced) { + return; + } + + if (error instanceof MongoNetworkError && !(error instanceof MongoNetworkTimeoutError)) { + server.monitor?.reset(); + } + + server.emit( + Server.DESCRIPTION_RECEIVED, + new ServerDescription(server.description.hostAddress, undefined, { error }) + ); +} + +function isPinnableCommand(cmd: Document, session?: ClientSession): boolean { + if (session) { + return ( + session.inTransaction() || + (session.transaction.isCommitted && 'commitTransaction' in cmd) || + 'aggregate' in cmd || + 'find' in cmd || + 'getMore' in cmd || + 'listCollections' in cmd || + 'listIndexes' in cmd + ); + } + + return false; +} + +function connectionIsStale(pool: ConnectionPool, connection: Connection) { + if (connection.serviceId) { + return ( + connection.generation !== pool.serviceGenerations.get(connection.serviceId.toHexString()) + ); + } + + return connection.generation !== pool.generation; +} + +function shouldHandleStateChangeError(server: Server, err: MongoError) { + const etv = err.topologyVersion; + const stv = server.description.topologyVersion; + return compareTopologyVersion(stv, etv) < 0; +} + +function inActiveTransaction(session: ClientSession | undefined, cmd: Document) { + return session && session.inTransaction() && !isTransactionCommand(cmd); +} + +/** this checks the retryWrites option passed down from the client options, it + * does not check if the server supports retryable writes */ +function isRetryableWritesEnabled(topology: Topology) { + return topology.s.options.retryWrites !== false; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_description.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_description.ts new file mode 100644 index 000000000..5068931b6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_description.ts @@ -0,0 +1,267 @@ +import { type Document, Long, type ObjectId } from '../bson'; +import { type MongoError, MongoRuntimeError } from '../error'; +import { arrayStrictEqual, compareObjectId, errorStrictEqual, HostAddress, now } from '../utils'; +import type { ClusterTime } from './common'; +import { ServerType } from './common'; + +const WRITABLE_SERVER_TYPES = new Set([ + ServerType.RSPrimary, + ServerType.Standalone, + ServerType.Mongos, + ServerType.LoadBalancer +]); + +const DATA_BEARING_SERVER_TYPES = new Set([ + ServerType.RSPrimary, + ServerType.RSSecondary, + ServerType.Mongos, + ServerType.Standalone, + ServerType.LoadBalancer +]); + +/** @public */ +export interface TopologyVersion { + processId: ObjectId; + counter: Long; +} + +/** @public */ +export type TagSet = { [key: string]: string }; + +/** @internal */ +export interface ServerDescriptionOptions { + /** An Error used for better reporting debugging */ + error?: MongoError; + + /** The average round trip time to ping this server (in ms) */ + roundTripTime?: number; + /** The minimum round trip time to ping this server over the past 10 samples(in ms) */ + minRoundTripTime?: number; + + /** If the client is in load balancing mode. */ + loadBalanced?: boolean; +} + +/** + * The client's view of a single server, based on the most recent hello outcome. + * + * Internal type, not meant to be directly instantiated + * @public + */ +export class ServerDescription { + address: string; + type: ServerType; + hosts: string[]; + passives: string[]; + arbiters: string[]; + tags: TagSet; + error: MongoError | null; + topologyVersion: TopologyVersion | null; + minWireVersion: number; + maxWireVersion: number; + roundTripTime: number; + /** The minimum measurement of the last 10 measurements of roundTripTime that have been collected */ + minRoundTripTime: number; + lastUpdateTime: number; + lastWriteDate: number; + me: string | null; + primary: string | null; + setName: string | null; + setVersion: number | null; + electionId: ObjectId | null; + logicalSessionTimeoutMinutes: number | null; + + // NOTE: does this belong here? It seems we should gossip the cluster time at the CMAP level + $clusterTime?: ClusterTime; + + /** + * Create a ServerDescription + * @internal + * + * @param address - The address of the server + * @param hello - An optional hello response for this server + */ + constructor( + address: HostAddress | string, + hello?: Document, + options: ServerDescriptionOptions = {} + ) { + if (address == null || address === '') { + throw new MongoRuntimeError('ServerDescription must be provided with a non-empty address'); + } + + this.address = + typeof address === 'string' + ? HostAddress.fromString(address).toString() // Use HostAddress to normalize + : address.toString(); + this.type = parseServerType(hello, options); + this.hosts = hello?.hosts?.map((host: string) => host.toLowerCase()) ?? []; + this.passives = hello?.passives?.map((host: string) => host.toLowerCase()) ?? []; + this.arbiters = hello?.arbiters?.map((host: string) => host.toLowerCase()) ?? []; + this.tags = hello?.tags ?? {}; + this.minWireVersion = hello?.minWireVersion ?? 0; + this.maxWireVersion = hello?.maxWireVersion ?? 0; + this.roundTripTime = options?.roundTripTime ?? -1; + this.minRoundTripTime = options?.minRoundTripTime ?? 0; + this.lastUpdateTime = now(); + this.lastWriteDate = hello?.lastWrite?.lastWriteDate ?? 0; + this.error = options.error ?? null; + // TODO(NODE-2674): Preserve int64 sent from MongoDB + this.topologyVersion = this.error?.topologyVersion ?? hello?.topologyVersion ?? null; + this.setName = hello?.setName ?? null; + this.setVersion = hello?.setVersion ?? null; + this.electionId = hello?.electionId ?? null; + this.logicalSessionTimeoutMinutes = hello?.logicalSessionTimeoutMinutes ?? null; + this.primary = hello?.primary ?? null; + this.me = hello?.me?.toLowerCase() ?? null; + this.$clusterTime = hello?.$clusterTime ?? null; + } + + get hostAddress(): HostAddress { + return HostAddress.fromString(this.address); + } + + get allHosts(): string[] { + return this.hosts.concat(this.arbiters).concat(this.passives); + } + + /** Is this server available for reads*/ + get isReadable(): boolean { + return this.type === ServerType.RSSecondary || this.isWritable; + } + + /** Is this server data bearing */ + get isDataBearing(): boolean { + return DATA_BEARING_SERVER_TYPES.has(this.type); + } + + /** Is this server available for writes */ + get isWritable(): boolean { + return WRITABLE_SERVER_TYPES.has(this.type); + } + + get host(): string { + const chopLength = `:${this.port}`.length; + return this.address.slice(0, -chopLength); + } + + get port(): number { + const port = this.address.split(':').pop(); + return port ? Number.parseInt(port, 10) : 27017; + } + + /** + * Determines if another `ServerDescription` is equal to this one per the rules defined + * in the {@link https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#serverdescription|SDAM spec} + */ + equals(other?: ServerDescription | null): boolean { + // Despite using the comparator that would determine a nullish topologyVersion as greater than + // for equality we should only always perform direct equality comparison + const topologyVersionsEqual = + this.topologyVersion === other?.topologyVersion || + compareTopologyVersion(this.topologyVersion, other?.topologyVersion) === 0; + + const electionIdsEqual = + this.electionId != null && other?.electionId != null + ? compareObjectId(this.electionId, other.electionId) === 0 + : this.electionId === other?.electionId; + + return ( + other != null && + errorStrictEqual(this.error, other.error) && + this.type === other.type && + this.minWireVersion === other.minWireVersion && + arrayStrictEqual(this.hosts, other.hosts) && + tagsStrictEqual(this.tags, other.tags) && + this.setName === other.setName && + this.setVersion === other.setVersion && + electionIdsEqual && + this.primary === other.primary && + this.logicalSessionTimeoutMinutes === other.logicalSessionTimeoutMinutes && + topologyVersionsEqual + ); + } +} + +// Parses a `hello` message and determines the server type +export function parseServerType(hello?: Document, options?: ServerDescriptionOptions): ServerType { + if (options?.loadBalanced) { + return ServerType.LoadBalancer; + } + + if (!hello || !hello.ok) { + return ServerType.Unknown; + } + + if (hello.isreplicaset) { + return ServerType.RSGhost; + } + + if (hello.msg && hello.msg === 'isdbgrid') { + return ServerType.Mongos; + } + + if (hello.setName) { + if (hello.hidden) { + return ServerType.RSOther; + } else if (hello.isWritablePrimary) { + return ServerType.RSPrimary; + } else if (hello.secondary) { + return ServerType.RSSecondary; + } else if (hello.arbiterOnly) { + return ServerType.RSArbiter; + } else { + return ServerType.RSOther; + } + } + + return ServerType.Standalone; +} + +function tagsStrictEqual(tags: TagSet, tags2: TagSet): boolean { + const tagsKeys = Object.keys(tags); + const tags2Keys = Object.keys(tags2); + + return ( + tagsKeys.length === tags2Keys.length && + tagsKeys.every((key: string) => tags2[key] === tags[key]) + ); +} + +/** + * Compares two topology versions. + * + * 1. If the response topologyVersion is unset or the ServerDescription's + * topologyVersion is null, the client MUST assume the response is more recent. + * 1. If the response's topologyVersion.processId is not equal to the + * ServerDescription's, the client MUST assume the response is more recent. + * 1. If the response's topologyVersion.processId is equal to the + * ServerDescription's, the client MUST use the counter field to determine + * which topologyVersion is more recent. + * + * ```ts + * currentTv < newTv === -1 + * currentTv === newTv === 0 + * currentTv > newTv === 1 + * ``` + */ +export function compareTopologyVersion( + currentTv?: TopologyVersion | null, + newTv?: TopologyVersion | null +): 0 | -1 | 1 { + if (currentTv == null || newTv == null) { + return -1; + } + + if (!currentTv.processId.equals(newTv.processId)) { + return -1; + } + + // TODO(NODE-2674): Preserve int64 sent from MongoDB + const currentCounter = Long.isLong(currentTv.counter) + ? currentTv.counter + : Long.fromNumber(currentTv.counter); + const newCounter = Long.isLong(newTv.counter) ? newTv.counter : Long.fromNumber(newTv.counter); + + return currentCounter.compare(newCounter); +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_selection.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_selection.ts new file mode 100644 index 000000000..bb262efa3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_selection.ts @@ -0,0 +1,331 @@ +import { MongoCompatibilityError, MongoInvalidArgumentError } from '../error'; +import { ReadPreference } from '../read_preference'; +import { ServerType, TopologyType } from './common'; +import type { ServerDescription, TagSet } from './server_description'; +import type { TopologyDescription } from './topology_description'; + +// max staleness constants +const IDLE_WRITE_PERIOD = 10000; +const SMALLEST_MAX_STALENESS_SECONDS = 90; + +// Minimum version to try writes on secondaries. +export const MIN_SECONDARY_WRITE_WIRE_VERSION = 13; + +/** @internal */ +export type ServerSelector = ( + topologyDescription: TopologyDescription, + servers: ServerDescription[], + deprioritized?: ServerDescription[] +) => ServerDescription[]; + +/** + * Returns a server selector that selects for writable servers + */ +export function writableServerSelector(): ServerSelector { + return function writableServer( + topologyDescription: TopologyDescription, + servers: ServerDescription[] + ): ServerDescription[] { + return latencyWindowReducer( + topologyDescription, + servers.filter((s: ServerDescription) => s.isWritable) + ); + }; +} + +/** + * The purpose of this selector is to select the same server, only + * if it is in a state that it can have commands sent to it. + */ +export function sameServerSelector(description?: ServerDescription): ServerSelector { + return function sameServerSelector( + topologyDescription: TopologyDescription, + servers: ServerDescription[] + ): ServerDescription[] { + if (!description) return []; + // Filter the servers to match the provided description only if + // the type is not unknown. + return servers.filter(sd => { + return sd.address === description.address && sd.type !== ServerType.Unknown; + }); + }; +} + +/** + * Returns a server selector that uses a read preference to select a + * server potentially for a write on a secondary. + */ +export function secondaryWritableServerSelector( + wireVersion?: number, + readPreference?: ReadPreference +): ServerSelector { + // If server version < 5.0, read preference always primary. + // If server version >= 5.0... + // - If read preference is supplied, use that. + // - If no read preference is supplied, use primary. + if ( + !readPreference || + !wireVersion || + (wireVersion && wireVersion < MIN_SECONDARY_WRITE_WIRE_VERSION) + ) { + return readPreferenceServerSelector(ReadPreference.primary); + } + return readPreferenceServerSelector(readPreference); +} + +/** + * Reduces the passed in array of servers by the rules of the "Max Staleness" specification + * found here: https://github.com/mongodb/specifications/blob/master/source/max-staleness/max-staleness.rst + * + * @param readPreference - The read preference providing max staleness guidance + * @param topologyDescription - The topology description + * @param servers - The list of server descriptions to be reduced + * @returns The list of servers that satisfy the requirements of max staleness + */ +function maxStalenessReducer( + readPreference: ReadPreference, + topologyDescription: TopologyDescription, + servers: ServerDescription[] +): ServerDescription[] { + if (readPreference.maxStalenessSeconds == null || readPreference.maxStalenessSeconds < 0) { + return servers; + } + + const maxStaleness = readPreference.maxStalenessSeconds; + const maxStalenessVariance = + (topologyDescription.heartbeatFrequencyMS + IDLE_WRITE_PERIOD) / 1000; + if (maxStaleness < maxStalenessVariance) { + throw new MongoInvalidArgumentError( + `Option "maxStalenessSeconds" must be at least ${maxStalenessVariance} seconds` + ); + } + + if (maxStaleness < SMALLEST_MAX_STALENESS_SECONDS) { + throw new MongoInvalidArgumentError( + `Option "maxStalenessSeconds" must be at least ${SMALLEST_MAX_STALENESS_SECONDS} seconds` + ); + } + + if (topologyDescription.type === TopologyType.ReplicaSetWithPrimary) { + const primary: ServerDescription = Array.from(topologyDescription.servers.values()).filter( + primaryFilter + )[0]; + + return servers.reduce((result: ServerDescription[], server: ServerDescription) => { + const stalenessMS = + server.lastUpdateTime - + server.lastWriteDate - + (primary.lastUpdateTime - primary.lastWriteDate) + + topologyDescription.heartbeatFrequencyMS; + + const staleness = stalenessMS / 1000; + const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0; + if (staleness <= maxStalenessSeconds) { + result.push(server); + } + + return result; + }, []); + } + + if (topologyDescription.type === TopologyType.ReplicaSetNoPrimary) { + if (servers.length === 0) { + return servers; + } + + const sMax = servers.reduce((max: ServerDescription, s: ServerDescription) => + s.lastWriteDate > max.lastWriteDate ? s : max + ); + + return servers.reduce((result: ServerDescription[], server: ServerDescription) => { + const stalenessMS = + sMax.lastWriteDate - server.lastWriteDate + topologyDescription.heartbeatFrequencyMS; + + const staleness = stalenessMS / 1000; + const maxStalenessSeconds = readPreference.maxStalenessSeconds ?? 0; + if (staleness <= maxStalenessSeconds) { + result.push(server); + } + + return result; + }, []); + } + + return servers; +} + +/** + * Determines whether a server's tags match a given set of tags + * + * @param tagSet - The requested tag set to match + * @param serverTags - The server's tags + */ +function tagSetMatch(tagSet: TagSet, serverTags: TagSet) { + const keys = Object.keys(tagSet); + const serverTagKeys = Object.keys(serverTags); + for (let i = 0; i < keys.length; ++i) { + const key = keys[i]; + if (serverTagKeys.indexOf(key) === -1 || serverTags[key] !== tagSet[key]) { + return false; + } + } + + return true; +} + +/** + * Reduces a set of server descriptions based on tags requested by the read preference + * + * @param readPreference - The read preference providing the requested tags + * @param servers - The list of server descriptions to reduce + * @returns The list of servers matching the requested tags + */ +function tagSetReducer( + readPreference: ReadPreference, + servers: ServerDescription[] +): ServerDescription[] { + if ( + readPreference.tags == null || + (Array.isArray(readPreference.tags) && readPreference.tags.length === 0) + ) { + return servers; + } + + for (let i = 0; i < readPreference.tags.length; ++i) { + const tagSet = readPreference.tags[i]; + const serversMatchingTagset = servers.reduce( + (matched: ServerDescription[], server: ServerDescription) => { + if (tagSetMatch(tagSet, server.tags)) matched.push(server); + return matched; + }, + [] + ); + + if (serversMatchingTagset.length) { + return serversMatchingTagset; + } + } + + return []; +} + +/** + * Reduces a list of servers to ensure they fall within an acceptable latency window. This is + * further specified in the "Server Selection" specification, found here: + * https://github.com/mongodb/specifications/blob/master/source/server-selection/server-selection.rst + * + * @param topologyDescription - The topology description + * @param servers - The list of servers to reduce + * @returns The servers which fall within an acceptable latency window + */ +function latencyWindowReducer( + topologyDescription: TopologyDescription, + servers: ServerDescription[] +): ServerDescription[] { + const low = servers.reduce( + (min: number, server: ServerDescription) => Math.min(server.roundTripTime, min), + Infinity + ); + + const high = low + topologyDescription.localThresholdMS; + return servers.reduce((result: ServerDescription[], server: ServerDescription) => { + if (server.roundTripTime <= high && server.roundTripTime >= low) result.push(server); + return result; + }, []); +} + +// filters +function primaryFilter(server: ServerDescription): boolean { + return server.type === ServerType.RSPrimary; +} + +function secondaryFilter(server: ServerDescription): boolean { + return server.type === ServerType.RSSecondary; +} + +function nearestFilter(server: ServerDescription): boolean { + return server.type === ServerType.RSSecondary || server.type === ServerType.RSPrimary; +} + +function knownFilter(server: ServerDescription): boolean { + return server.type !== ServerType.Unknown; +} + +function loadBalancerFilter(server: ServerDescription): boolean { + return server.type === ServerType.LoadBalancer; +} + +/** + * Returns a function which selects servers based on a provided read preference + * + * @param readPreference - The read preference to select with + */ +export function readPreferenceServerSelector(readPreference: ReadPreference): ServerSelector { + if (!readPreference.isValid()) { + throw new MongoInvalidArgumentError('Invalid read preference specified'); + } + + return function readPreferenceServers( + topologyDescription: TopologyDescription, + servers: ServerDescription[], + deprioritized: ServerDescription[] = [] + ): ServerDescription[] { + const commonWireVersion = topologyDescription.commonWireVersion; + if ( + commonWireVersion && + readPreference.minWireVersion && + readPreference.minWireVersion > commonWireVersion + ) { + throw new MongoCompatibilityError( + `Minimum wire version '${readPreference.minWireVersion}' required, but found '${commonWireVersion}'` + ); + } + + if (topologyDescription.type === TopologyType.LoadBalanced) { + return servers.filter(loadBalancerFilter); + } + + if (topologyDescription.type === TopologyType.Unknown) { + return []; + } + + if (topologyDescription.type === TopologyType.Single) { + return latencyWindowReducer(topologyDescription, servers.filter(knownFilter)); + } + + if (topologyDescription.type === TopologyType.Sharded) { + const filtered = servers.filter(server => { + return !deprioritized.includes(server); + }); + const selectable = filtered.length > 0 ? filtered : deprioritized; + return latencyWindowReducer(topologyDescription, selectable.filter(knownFilter)); + } + + const mode = readPreference.mode; + if (mode === ReadPreference.PRIMARY) { + return servers.filter(primaryFilter); + } + + if (mode === ReadPreference.PRIMARY_PREFERRED) { + const result = servers.filter(primaryFilter); + if (result.length) { + return result; + } + } + + const filter = mode === ReadPreference.NEAREST ? nearestFilter : secondaryFilter; + const selectedServers = latencyWindowReducer( + topologyDescription, + tagSetReducer( + readPreference, + maxStalenessReducer(readPreference, topologyDescription, servers.filter(filter)) + ) + ); + + if (mode === ReadPreference.SECONDARY_PREFERRED && selectedServers.length === 0) { + return servers.filter(primaryFilter); + } + + return selectedServers; + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_selection_events.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_selection_events.ts new file mode 100644 index 000000000..9b1716617 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/server_selection_events.ts @@ -0,0 +1,142 @@ +import { HostAddress } from '.././utils'; +import { + SERVER_SELECTION_FAILED, + SERVER_SELECTION_STARTED, + SERVER_SELECTION_SUCCEEDED, + WAITING_FOR_SUITABLE_SERVER +} from '../constants'; +import { type ReadPreference } from '../read_preference'; +import { type ServerSelector } from './server_selection'; +import type { TopologyDescription } from './topology_description'; + +/** + * The base export class for all logs published from server selection + * @internal + * @category Log Type + */ +export abstract class ServerSelectionEvent { + /** String representation of the selector being used to select the server. + * Defaults to 'custom selector' for application-provided custom selector case. + */ + selector: string | ReadPreference | ServerSelector; + /** The name of the operation for which a server is being selected. */ + operation: string; + /** The current topology description. */ + topologyDescription: TopologyDescription; + + /** @internal */ + abstract name: + | typeof SERVER_SELECTION_STARTED + | typeof SERVER_SELECTION_SUCCEEDED + | typeof SERVER_SELECTION_FAILED + | typeof WAITING_FOR_SUITABLE_SERVER; + + abstract message: string; + + /** @internal */ + constructor( + selector: string | ReadPreference | ServerSelector, + topologyDescription: TopologyDescription, + operation: string + ) { + this.selector = selector; + this.operation = operation; + this.topologyDescription = topologyDescription; + } +} + +/** + * An event published when server selection starts + * @internal + * @category Event + */ +export class ServerSelectionStartedEvent extends ServerSelectionEvent { + /** @internal */ + name = SERVER_SELECTION_STARTED; + message = 'Server selection started'; + + /** @internal */ + constructor( + selector: string | ReadPreference | ServerSelector, + topologyDescription: TopologyDescription, + operation: string + ) { + super(selector, topologyDescription, operation); + } +} + +/** + * An event published when a server selection fails + * @internal + * @category Event + */ +export class ServerSelectionFailedEvent extends ServerSelectionEvent { + /** @internal */ + name = SERVER_SELECTION_FAILED; + message = 'Server selection failed'; + /** Representation of the error the driver will throw regarding server selection failing. */ + failure: Error; + + /** @internal */ + constructor( + selector: string | ReadPreference | ServerSelector, + topologyDescription: TopologyDescription, + error: Error, + operation: string + ) { + super(selector, topologyDescription, operation); + this.failure = error; + } +} + +/** + * An event published when server selection succeeds + * @internal + * @category Event + */ +export class ServerSelectionSucceededEvent extends ServerSelectionEvent { + /** @internal */ + name = SERVER_SELECTION_SUCCEEDED; + message = 'Server selection succeeded'; + /** The hostname, IP address, or Unix domain socket path for the selected server. */ + serverHost: string; + /** The port for the selected server. Optional; not present for Unix domain sockets. When the user does not specify a port and the default (27017) is used, the driver SHOULD include it here. */ + serverPort: number | undefined; + + /** @internal */ + constructor( + selector: string | ReadPreference | ServerSelector, + topologyDescription: TopologyDescription, + address: string, + operation: string + ) { + super(selector, topologyDescription, operation); + const { host, port } = HostAddress.fromString(address).toHostPort(); + this.serverHost = host; + this.serverPort = port; + } +} + +/** + * An event published when server selection is waiting for a suitable server to become available + * @internal + * @category Event + */ +export class WaitingForSuitableServerEvent extends ServerSelectionEvent { + /** @internal */ + name = WAITING_FOR_SUITABLE_SERVER; + message = 'Waiting for suitable server to become available'; + /** The remaining time left until server selection will time out. */ + remainingTimeMS: number; + + /** @internal */ + constructor( + selector: string | ReadPreference | ServerSelector, + topologyDescription: TopologyDescription, + remainingTimeMS: number, + operation: string + ) { + super(selector, topologyDescription, operation); + this.remainingTimeMS = remainingTimeMS; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/srv_polling.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/srv_polling.ts new file mode 100644 index 000000000..4690a3d95 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/srv_polling.ts @@ -0,0 +1,143 @@ +import * as dns from 'dns'; +import { clearTimeout, setTimeout } from 'timers'; + +import { MongoRuntimeError } from '../error'; +import { TypedEventEmitter } from '../mongo_types'; +import { HostAddress, matchesParentDomain, squashError } from '../utils'; + +/** + * @internal + * @category Event + */ +export class SrvPollingEvent { + srvRecords: dns.SrvRecord[]; + constructor(srvRecords: dns.SrvRecord[]) { + this.srvRecords = srvRecords; + } + + hostnames(): Set { + return new Set(this.srvRecords.map(r => HostAddress.fromSrvRecord(r).toString())); + } +} + +/** @internal */ +export interface SrvPollerOptions { + srvServiceName: string; + srvMaxHosts: number; + srvHost: string; + heartbeatFrequencyMS: number; +} + +/** @internal */ +export type SrvPollerEvents = { + srvRecordDiscovery(event: SrvPollingEvent): void; +}; + +/** @internal */ +export class SrvPoller extends TypedEventEmitter { + srvHost: string; + rescanSrvIntervalMS: number; + heartbeatFrequencyMS: number; + haMode: boolean; + generation: number; + srvMaxHosts: number; + srvServiceName: string; + _timeout?: NodeJS.Timeout; + + /** @event */ + static readonly SRV_RECORD_DISCOVERY = 'srvRecordDiscovery' as const; + + constructor(options: SrvPollerOptions) { + super(); + + if (!options || !options.srvHost) { + throw new MongoRuntimeError('Options for SrvPoller must exist and include srvHost'); + } + + this.srvHost = options.srvHost; + this.srvMaxHosts = options.srvMaxHosts ?? 0; + this.srvServiceName = options.srvServiceName ?? 'mongodb'; + this.rescanSrvIntervalMS = 60000; + this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 10000; + + this.haMode = false; + this.generation = 0; + + this._timeout = undefined; + } + + get srvAddress(): string { + return `_${this.srvServiceName}._tcp.${this.srvHost}`; + } + + get intervalMS(): number { + return this.haMode ? this.heartbeatFrequencyMS : this.rescanSrvIntervalMS; + } + + start(): void { + if (!this._timeout) { + this.schedule(); + } + } + + stop(): void { + if (this._timeout) { + clearTimeout(this._timeout); + this.generation += 1; + this._timeout = undefined; + } + } + + // TODO(NODE-4994): implement new logging logic for SrvPoller failures + schedule(): void { + if (this._timeout) { + clearTimeout(this._timeout); + } + + this._timeout = setTimeout(() => { + // eslint-disable-next-line github/no-then + this._poll().then(undefined, squashError); + }, this.intervalMS); + } + + success(srvRecords: dns.SrvRecord[]): void { + this.haMode = false; + this.schedule(); + this.emit(SrvPoller.SRV_RECORD_DISCOVERY, new SrvPollingEvent(srvRecords)); + } + + failure(): void { + this.haMode = true; + this.schedule(); + } + + async _poll(): Promise { + const generation = this.generation; + let srvRecords; + + try { + srvRecords = await dns.promises.resolveSrv(this.srvAddress); + } catch (dnsError) { + this.failure(); + return; + } + + if (generation !== this.generation) { + return; + } + + const finalAddresses: dns.SrvRecord[] = []; + for (const record of srvRecords) { + if (matchesParentDomain(record.name, this.srvHost)) { + finalAddresses.push(record); + } + } + + if (!finalAddresses.length) { + this.failure(); + return; + } + + this.success(finalAddresses); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/topology.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/topology.ts new file mode 100644 index 000000000..73b0e92a0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/topology.ts @@ -0,0 +1,1123 @@ +import type { BSONSerializeOptions, Document } from '../bson'; +import type { MongoCredentials } from '../cmap/auth/mongo_credentials'; +import type { ConnectionEvents } from '../cmap/connection'; +import type { ConnectionPoolEvents } from '../cmap/connection_pool'; +import type { ClientMetadata } from '../cmap/handshake/client_metadata'; +import { DEFAULT_OPTIONS, FEATURE_FLAGS } from '../connection_string'; +import { + CLOSE, + CONNECT, + ERROR, + LOCAL_SERVER_EVENTS, + OPEN, + SERVER_CLOSED, + SERVER_DESCRIPTION_CHANGED, + SERVER_OPENING, + SERVER_RELAY_EVENTS, + TIMEOUT, + TOPOLOGY_CLOSED, + TOPOLOGY_DESCRIPTION_CHANGED, + TOPOLOGY_OPENING +} from '../constants'; +import { + MongoCompatibilityError, + type MongoDriverError, + MongoError, + MongoErrorLabel, + MongoRuntimeError, + MongoServerSelectionError, + MongoTopologyClosedError +} from '../error'; +import type { MongoClient, ServerApi } from '../mongo_client'; +import { MongoLoggableComponent, type MongoLogger, SeverityLevel } from '../mongo_logger'; +import { TypedEventEmitter } from '../mongo_types'; +import { ReadPreference, type ReadPreferenceLike } from '../read_preference'; +import type { ClientSession } from '../sessions'; +import { Timeout, TimeoutError } from '../timeout'; +import type { Transaction } from '../transactions'; +import { + type Callback, + type EventEmitterWithState, + HostAddress, + List, + makeStateMachine, + now, + ns, + promiseWithResolvers, + shuffle +} from '../utils'; +import { + _advanceClusterTime, + type ClusterTime, + drainTimerQueue, + ServerType, + STATE_CLOSED, + STATE_CLOSING, + STATE_CONNECTED, + STATE_CONNECTING, + type TimerQueue, + TopologyType +} from './common'; +import { + ServerClosedEvent, + ServerDescriptionChangedEvent, + ServerOpeningEvent, + TopologyClosedEvent, + TopologyDescriptionChangedEvent, + TopologyOpeningEvent +} from './events'; +import type { ServerMonitoringMode } from './monitor'; +import { Server, type ServerEvents, type ServerOptions } from './server'; +import { compareTopologyVersion, ServerDescription } from './server_description'; +import { readPreferenceServerSelector, type ServerSelector } from './server_selection'; +import { + ServerSelectionFailedEvent, + ServerSelectionStartedEvent, + ServerSelectionSucceededEvent, + WaitingForSuitableServerEvent +} from './server_selection_events'; +import { SrvPoller, type SrvPollingEvent } from './srv_polling'; +import { TopologyDescription } from './topology_description'; + +// Global state +let globalTopologyCounter = 0; + +const stateTransition = makeStateMachine({ + [STATE_CLOSED]: [STATE_CLOSED, STATE_CONNECTING], + [STATE_CONNECTING]: [STATE_CONNECTING, STATE_CLOSING, STATE_CONNECTED, STATE_CLOSED], + [STATE_CONNECTED]: [STATE_CONNECTED, STATE_CLOSING, STATE_CLOSED], + [STATE_CLOSING]: [STATE_CLOSING, STATE_CLOSED] +}); + +/** @internal */ +const kCancelled = Symbol('cancelled'); +/** @internal */ +const kWaitQueue = Symbol('waitQueue'); + +/** @internal */ +export type ServerSelectionCallback = Callback; + +/** @internal */ +export interface ServerSelectionRequest { + serverSelector: ServerSelector; + topologyDescription: TopologyDescription; + mongoLogger: MongoLogger | undefined; + transaction?: Transaction; + startTime: number; + resolve: (server: Server) => void; + reject: (error: MongoError) => void; + [kCancelled]?: boolean; + timeout: Timeout; + operationName: string; + waitingLogged: boolean; + previousServer?: ServerDescription; +} + +/** @internal */ +export interface TopologyPrivate { + /** the id of this topology */ + id: number; + /** passed in options */ + options: TopologyOptions; + /** initial seedlist of servers to connect to */ + seedlist: HostAddress[]; + /** initial state */ + state: string; + /** the topology description */ + description: TopologyDescription; + serverSelectionTimeoutMS: number; + heartbeatFrequencyMS: number; + minHeartbeatFrequencyMS: number; + /** A map of server instances to normalized addresses */ + servers: Map; + credentials?: MongoCredentials; + clusterTime?: ClusterTime; + /** timers created for the initial connect to a server */ + connectionTimers: TimerQueue; + + /** related to srv polling */ + srvPoller?: SrvPoller; + detectShardedTopology: (event: TopologyDescriptionChangedEvent) => void; + detectSrvRecords: (event: SrvPollingEvent) => void; +} + +/** @internal */ +export interface TopologyOptions extends BSONSerializeOptions, ServerOptions { + srvMaxHosts: number; + srvServiceName: string; + hosts: HostAddress[]; + retryWrites: boolean; + retryReads: boolean; + /** How long to block for server selection before throwing an error */ + serverSelectionTimeoutMS: number; + /** The name of the replica set to connect to */ + replicaSet?: string; + srvHost?: string; + srvPoller?: SrvPoller; + /** Indicates that a client should directly connect to a node without attempting to discover its topology type */ + directConnection: boolean; + loadBalanced: boolean; + metadata: ClientMetadata; + extendedMetadata: Promise; + serverMonitoringMode: ServerMonitoringMode; + /** MongoDB server API version */ + serverApi?: ServerApi; + [featureFlag: symbol]: any; +} + +/** @public */ +export interface ConnectOptions { + readPreference?: ReadPreference; +} + +/** @public */ +export interface SelectServerOptions { + readPreference?: ReadPreferenceLike; + /** How long to block for server selection before throwing an error */ + serverSelectionTimeoutMS?: number; + session?: ClientSession; + operationName: string; + previousServer?: ServerDescription; + /** @internal*/ + timeout?: Timeout; +} + +/** @public */ +export type TopologyEvents = { + /** Top level MongoClient doesn't emit this so it is marked: @internal */ + connect(topology: Topology): void; + serverOpening(event: ServerOpeningEvent): void; + serverClosed(event: ServerClosedEvent): void; + serverDescriptionChanged(event: ServerDescriptionChangedEvent): void; + topologyClosed(event: TopologyClosedEvent): void; + topologyOpening(event: TopologyOpeningEvent): void; + topologyDescriptionChanged(event: TopologyDescriptionChangedEvent): void; + error(error: Error): void; + /** @internal */ + open(topology: Topology): void; + close(): void; + timeout(): void; +} & Omit & + ConnectionPoolEvents & + ConnectionEvents & + EventEmitterWithState; +/** + * A container of server instances representing a connection to a MongoDB topology. + * @internal + */ +export class Topology extends TypedEventEmitter { + /** @internal */ + s: TopologyPrivate; + /** @internal */ + [kWaitQueue]: List; + /** @internal */ + hello?: Document; + /** @internal */ + _type?: string; + + client!: MongoClient; + + /** @internal */ + private connectionLock?: Promise; + + /** @event */ + static readonly SERVER_OPENING = SERVER_OPENING; + /** @event */ + static readonly SERVER_CLOSED = SERVER_CLOSED; + /** @event */ + static readonly SERVER_DESCRIPTION_CHANGED = SERVER_DESCRIPTION_CHANGED; + /** @event */ + static readonly TOPOLOGY_OPENING = TOPOLOGY_OPENING; + /** @event */ + static readonly TOPOLOGY_CLOSED = TOPOLOGY_CLOSED; + /** @event */ + static readonly TOPOLOGY_DESCRIPTION_CHANGED = TOPOLOGY_DESCRIPTION_CHANGED; + /** @event */ + static readonly ERROR = ERROR; + /** @event */ + static readonly OPEN = OPEN; + /** @event */ + static readonly CONNECT = CONNECT; + /** @event */ + static readonly CLOSE = CLOSE; + /** @event */ + static readonly TIMEOUT = TIMEOUT; + + /** + * @param seedlist - a list of HostAddress instances to connect to + */ + constructor( + client: MongoClient, + seeds: string | string[] | HostAddress | HostAddress[], + options: TopologyOptions + ) { + super(); + + this.client = client; + // Options should only be undefined in tests, MongoClient will always have defined options + options = options ?? { + hosts: [HostAddress.fromString('localhost:27017')], + ...Object.fromEntries(DEFAULT_OPTIONS.entries()), + ...Object.fromEntries(FEATURE_FLAGS.entries()) + }; + + if (typeof seeds === 'string') { + seeds = [HostAddress.fromString(seeds)]; + } else if (!Array.isArray(seeds)) { + seeds = [seeds]; + } + + const seedlist: HostAddress[] = []; + for (const seed of seeds) { + if (typeof seed === 'string') { + seedlist.push(HostAddress.fromString(seed)); + } else if (seed instanceof HostAddress) { + seedlist.push(seed); + } else { + // FIXME(NODE-3483): May need to be a MongoParseError + throw new MongoRuntimeError(`Topology cannot be constructed from ${JSON.stringify(seed)}`); + } + } + + const topologyType = topologyTypeFromOptions(options); + const topologyId = globalTopologyCounter++; + + const selectedHosts = + options.srvMaxHosts == null || + options.srvMaxHosts === 0 || + options.srvMaxHosts >= seedlist.length + ? seedlist + : shuffle(seedlist, options.srvMaxHosts); + + const serverDescriptions = new Map(); + for (const hostAddress of selectedHosts) { + serverDescriptions.set(hostAddress.toString(), new ServerDescription(hostAddress)); + } + + this[kWaitQueue] = new List(); + this.s = { + // the id of this topology + id: topologyId, + // passed in options + options, + // initial seedlist of servers to connect to + seedlist, + // initial state + state: STATE_CLOSED, + // the topology description + description: new TopologyDescription( + topologyType, + serverDescriptions, + options.replicaSet, + undefined, + undefined, + undefined, + options + ), + serverSelectionTimeoutMS: options.serverSelectionTimeoutMS, + heartbeatFrequencyMS: options.heartbeatFrequencyMS, + minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS, + // a map of server instances to normalized addresses + servers: new Map(), + credentials: options?.credentials, + clusterTime: undefined, + + // timer management + connectionTimers: new Set(), + detectShardedTopology: ev => this.detectShardedTopology(ev), + detectSrvRecords: ev => this.detectSrvRecords(ev) + }; + + this.mongoLogger = client.mongoLogger; + this.component = 'topology'; + + if (options.srvHost && !options.loadBalanced) { + this.s.srvPoller = + options.srvPoller ?? + new SrvPoller({ + heartbeatFrequencyMS: this.s.heartbeatFrequencyMS, + srvHost: options.srvHost, + srvMaxHosts: options.srvMaxHosts, + srvServiceName: options.srvServiceName + }); + + this.on(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology); + } + this.connectionLock = undefined; + } + + private detectShardedTopology(event: TopologyDescriptionChangedEvent) { + const previousType = event.previousDescription.type; + const newType = event.newDescription.type; + + const transitionToSharded = + previousType !== TopologyType.Sharded && newType === TopologyType.Sharded; + const srvListeners = this.s.srvPoller?.listeners(SrvPoller.SRV_RECORD_DISCOVERY); + const listeningToSrvPolling = !!srvListeners?.includes(this.s.detectSrvRecords); + + if (transitionToSharded && !listeningToSrvPolling) { + this.s.srvPoller?.on(SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords); + this.s.srvPoller?.start(); + } + } + + private detectSrvRecords(ev: SrvPollingEvent) { + const previousTopologyDescription = this.s.description; + this.s.description = this.s.description.updateFromSrvPollingEvent( + ev, + this.s.options.srvMaxHosts + ); + if (this.s.description === previousTopologyDescription) { + // Nothing changed, so return + return; + } + + updateServers(this); + + this.emitAndLog( + Topology.TOPOLOGY_DESCRIPTION_CHANGED, + new TopologyDescriptionChangedEvent( + this.s.id, + previousTopologyDescription, + this.s.description + ) + ); + } + + /** + * @returns A `TopologyDescription` for this topology + */ + get description(): TopologyDescription { + return this.s.description; + } + + get loadBalanced(): boolean { + return this.s.options.loadBalanced; + } + + get serverApi(): ServerApi | undefined { + return this.s.options.serverApi; + } + + get capabilities(): ServerCapabilities { + return new ServerCapabilities(this.lastHello()); + } + + /** Initiate server connect */ + async connect(options?: ConnectOptions): Promise { + this.connectionLock ??= this._connect(options); + try { + await this.connectionLock; + return this; + } finally { + this.connectionLock = undefined; + } + + return this; + } + + private async _connect(options?: ConnectOptions): Promise { + options = options ?? {}; + if (this.s.state === STATE_CONNECTED) { + return this; + } + + stateTransition(this, STATE_CONNECTING); + + // emit SDAM monitoring events + this.emitAndLog(Topology.TOPOLOGY_OPENING, new TopologyOpeningEvent(this.s.id)); + + // emit an event for the topology change + this.emitAndLog( + Topology.TOPOLOGY_DESCRIPTION_CHANGED, + new TopologyDescriptionChangedEvent( + this.s.id, + new TopologyDescription(TopologyType.Unknown), // initial is always Unknown + this.s.description + ) + ); + + // connect all known servers, then attempt server selection to connect + const serverDescriptions = Array.from(this.s.description.servers.values()); + this.s.servers = new Map( + serverDescriptions.map(serverDescription => [ + serverDescription.address, + createAndConnectServer(this, serverDescription) + ]) + ); + + // In load balancer mode we need to fake a server description getting + // emitted from the monitor, since the monitor doesn't exist. + if (this.s.options.loadBalanced) { + for (const description of serverDescriptions) { + const newDescription = new ServerDescription(description.hostAddress, undefined, { + loadBalanced: this.s.options.loadBalanced + }); + this.serverUpdateHandler(newDescription); + } + } + + const readPreference = options.readPreference ?? ReadPreference.primary; + const selectServerOptions = { operationName: 'ping', ...options }; + try { + const server = await this.selectServer( + readPreferenceServerSelector(readPreference), + selectServerOptions + ); + + const skipPingOnConnect = this.s.options[Symbol.for('@@mdb.skipPingOnConnect')] === true; + if (!skipPingOnConnect && server && this.s.credentials) { + await server.command(ns('admin.$cmd'), { ping: 1 }, {}); + stateTransition(this, STATE_CONNECTED); + this.emit(Topology.OPEN, this); + this.emit(Topology.CONNECT, this); + + return this; + } + + stateTransition(this, STATE_CONNECTED); + this.emit(Topology.OPEN, this); + this.emit(Topology.CONNECT, this); + + return this; + } catch (error) { + this.close(); + throw error; + } + } + + /** Close this topology */ + close(): void { + if (this.s.state === STATE_CLOSED || this.s.state === STATE_CLOSING) { + return; + } + + for (const server of this.s.servers.values()) { + destroyServer(server, this); + } + + this.s.servers.clear(); + + stateTransition(this, STATE_CLOSING); + + drainWaitQueue(this[kWaitQueue], new MongoTopologyClosedError()); + drainTimerQueue(this.s.connectionTimers); + + if (this.s.srvPoller) { + this.s.srvPoller.stop(); + this.s.srvPoller.removeListener(SrvPoller.SRV_RECORD_DISCOVERY, this.s.detectSrvRecords); + } + + this.removeListener(Topology.TOPOLOGY_DESCRIPTION_CHANGED, this.s.detectShardedTopology); + + stateTransition(this, STATE_CLOSED); + + // emit an event for close + this.emitAndLog(Topology.TOPOLOGY_CLOSED, new TopologyClosedEvent(this.s.id)); + } + + /** + * Selects a server according to the selection predicate provided + * + * @param selector - An optional selector to select servers by, defaults to a random selection within a latency window + * @param options - Optional settings related to server selection + * @param callback - The callback used to indicate success or failure + * @returns An instance of a `Server` meeting the criteria of the predicate provided + */ + async selectServer( + selector: string | ReadPreference | ServerSelector, + options: SelectServerOptions + ): Promise { + let serverSelector; + if (typeof selector !== 'function') { + if (typeof selector === 'string') { + serverSelector = readPreferenceServerSelector(ReadPreference.fromString(selector)); + } else { + let readPreference; + if (selector instanceof ReadPreference) { + readPreference = selector; + } else { + ReadPreference.translate(options); + readPreference = options.readPreference || ReadPreference.primary; + } + + serverSelector = readPreferenceServerSelector(readPreference as ReadPreference); + } + } else { + serverSelector = selector; + } + + options = { serverSelectionTimeoutMS: this.s.serverSelectionTimeoutMS, ...options }; + if ( + this.client.mongoLogger?.willLog(MongoLoggableComponent.SERVER_SELECTION, SeverityLevel.DEBUG) + ) { + this.client.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionStartedEvent(selector, this.description, options.operationName) + ); + } + + const isSharded = this.description.type === TopologyType.Sharded; + const session = options.session; + const transaction = session && session.transaction; + + if (isSharded && transaction && transaction.server) { + if ( + this.client.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.DEBUG + ) + ) { + this.client.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionSucceededEvent( + selector, + this.description, + transaction.server.pool.address, + options.operationName + ) + ); + } + return transaction.server; + } + + const { promise: serverPromise, resolve, reject } = promiseWithResolvers(); + const timeout = Timeout.expires(options.serverSelectionTimeoutMS ?? 0); + const waitQueueMember: ServerSelectionRequest = { + serverSelector, + topologyDescription: this.description, + mongoLogger: this.client.mongoLogger, + transaction, + resolve, + reject, + timeout, + startTime: now(), + operationName: options.operationName, + waitingLogged: false, + previousServer: options.previousServer + }; + + this[kWaitQueue].push(waitQueueMember); + processWaitQueue(this); + + try { + return await Promise.race([serverPromise, waitQueueMember.timeout]); + } catch (error) { + if (TimeoutError.is(error)) { + // Timeout + waitQueueMember[kCancelled] = true; + timeout.clear(); + const timeoutError = new MongoServerSelectionError( + `Server selection timed out after ${options.serverSelectionTimeoutMS} ms`, + this.description + ); + if ( + this.client.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.DEBUG + ) + ) { + this.client.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionFailedEvent( + selector, + this.description, + timeoutError, + options.operationName + ) + ); + } + + throw timeoutError; + } + // Other server selection error + throw error; + } + } + /** + * Update the internal TopologyDescription with a ServerDescription + * + * @param serverDescription - The server to update in the internal list of server descriptions + */ + serverUpdateHandler(serverDescription: ServerDescription): void { + if (!this.s.description.hasServer(serverDescription.address)) { + return; + } + + // ignore this server update if its from an outdated topologyVersion + if (isStaleServerDescription(this.s.description, serverDescription)) { + return; + } + + // these will be used for monitoring events later + const previousTopologyDescription = this.s.description; + const previousServerDescription = this.s.description.servers.get(serverDescription.address); + if (!previousServerDescription) { + return; + } + + // Driver Sessions Spec: "Whenever a driver receives a cluster time from + // a server it MUST compare it to the current highest seen cluster time + // for the deployment. If the new cluster time is higher than the + // highest seen cluster time it MUST become the new highest seen cluster + // time. Two cluster times are compared using only the BsonTimestamp + // value of the clusterTime embedded field." + const clusterTime = serverDescription.$clusterTime; + if (clusterTime) { + _advanceClusterTime(this, clusterTime); + } + + // If we already know all the information contained in this updated description, then + // we don't need to emit SDAM events, but still need to update the description, in order + // to keep client-tracked attributes like last update time and round trip time up to date + const equalDescriptions = + previousServerDescription && previousServerDescription.equals(serverDescription); + + // first update the TopologyDescription + this.s.description = this.s.description.update(serverDescription); + if (this.s.description.compatibilityError) { + this.emit(Topology.ERROR, new MongoCompatibilityError(this.s.description.compatibilityError)); + return; + } + + // emit monitoring events for this change + if (!equalDescriptions) { + const newDescription = this.s.description.servers.get(serverDescription.address); + if (newDescription) { + this.emit( + Topology.SERVER_DESCRIPTION_CHANGED, + new ServerDescriptionChangedEvent( + this.s.id, + serverDescription.address, + previousServerDescription, + newDescription + ) + ); + } + } + + // update server list from updated descriptions + updateServers(this, serverDescription); + + // attempt to resolve any outstanding server selection attempts + if (this[kWaitQueue].length > 0) { + processWaitQueue(this); + } + + if (!equalDescriptions) { + this.emitAndLog( + Topology.TOPOLOGY_DESCRIPTION_CHANGED, + new TopologyDescriptionChangedEvent( + this.s.id, + previousTopologyDescription, + this.s.description + ) + ); + } + } + + auth(credentials?: MongoCredentials, callback?: Callback): void { + if (typeof credentials === 'function') (callback = credentials), (credentials = undefined); + if (typeof callback === 'function') callback(undefined, true); + } + + get clientMetadata(): ClientMetadata { + return this.s.options.metadata; + } + + isConnected(): boolean { + return this.s.state === STATE_CONNECTED; + } + + isDestroyed(): boolean { + return this.s.state === STATE_CLOSED; + } + + // NOTE: There are many places in code where we explicitly check the last hello + // to do feature support detection. This should be done any other way, but for + // now we will just return the first hello seen, which should suffice. + lastHello(): Document { + const serverDescriptions = Array.from(this.description.servers.values()); + if (serverDescriptions.length === 0) return {}; + const sd = serverDescriptions.filter( + (sd: ServerDescription) => sd.type !== ServerType.Unknown + )[0]; + + const result = sd || { maxWireVersion: this.description.commonWireVersion }; + return result; + } + + get commonWireVersion(): number | undefined { + return this.description.commonWireVersion; + } + + get logicalSessionTimeoutMinutes(): number | null { + return this.description.logicalSessionTimeoutMinutes; + } + + get clusterTime(): ClusterTime | undefined { + return this.s.clusterTime; + } + + set clusterTime(clusterTime: ClusterTime | undefined) { + this.s.clusterTime = clusterTime; + } +} + +/** Destroys a server, and removes all event listeners from the instance */ +function destroyServer(server: Server, topology: Topology) { + for (const event of LOCAL_SERVER_EVENTS) { + server.removeAllListeners(event); + } + + server.destroy(); + topology.emitAndLog( + Topology.SERVER_CLOSED, + new ServerClosedEvent(topology.s.id, server.description.address) + ); + + for (const event of SERVER_RELAY_EVENTS) { + server.removeAllListeners(event); + } +} + +/** Predicts the TopologyType from options */ +function topologyTypeFromOptions(options?: TopologyOptions) { + if (options?.directConnection) { + return TopologyType.Single; + } + + if (options?.replicaSet) { + return TopologyType.ReplicaSetNoPrimary; + } + + if (options?.loadBalanced) { + return TopologyType.LoadBalanced; + } + + return TopologyType.Unknown; +} + +/** + * Creates new server instances and attempts to connect them + * + * @param topology - The topology that this server belongs to + * @param serverDescription - The description for the server to initialize and connect to + */ +function createAndConnectServer(topology: Topology, serverDescription: ServerDescription) { + topology.emitAndLog( + Topology.SERVER_OPENING, + new ServerOpeningEvent(topology.s.id, serverDescription.address) + ); + + const server = new Server(topology, serverDescription, topology.s.options); + for (const event of SERVER_RELAY_EVENTS) { + server.on(event, (e: any) => topology.emit(event, e)); + } + + server.on(Server.DESCRIPTION_RECEIVED, description => topology.serverUpdateHandler(description)); + + server.connect(); + return server; +} + +/** + * @param topology - Topology to update. + * @param incomingServerDescription - New server description. + */ +function updateServers(topology: Topology, incomingServerDescription?: ServerDescription) { + // update the internal server's description + if (incomingServerDescription && topology.s.servers.has(incomingServerDescription.address)) { + const server = topology.s.servers.get(incomingServerDescription.address); + if (server) { + server.s.description = incomingServerDescription; + if ( + incomingServerDescription.error instanceof MongoError && + incomingServerDescription.error.hasErrorLabel(MongoErrorLabel.ResetPool) + ) { + const interruptInUseConnections = incomingServerDescription.error.hasErrorLabel( + MongoErrorLabel.InterruptInUseConnections + ); + + server.pool.clear({ interruptInUseConnections }); + } else if (incomingServerDescription.error == null) { + const newTopologyType = topology.s.description.type; + const shouldMarkPoolReady = + incomingServerDescription.isDataBearing || + (incomingServerDescription.type !== ServerType.Unknown && + newTopologyType === TopologyType.Single); + if (shouldMarkPoolReady) { + server.pool.ready(); + } + } + } + } + + // add new servers for all descriptions we currently don't know about locally + for (const serverDescription of topology.description.servers.values()) { + if (!topology.s.servers.has(serverDescription.address)) { + const server = createAndConnectServer(topology, serverDescription); + topology.s.servers.set(serverDescription.address, server); + } + } + + // for all servers no longer known, remove their descriptions and destroy their instances + for (const entry of topology.s.servers) { + const serverAddress = entry[0]; + if (topology.description.hasServer(serverAddress)) { + continue; + } + + if (!topology.s.servers.has(serverAddress)) { + continue; + } + + const server = topology.s.servers.get(serverAddress); + topology.s.servers.delete(serverAddress); + + // prepare server for garbage collection + if (server) { + destroyServer(server, topology); + } + } +} + +function drainWaitQueue(queue: List, drainError: MongoDriverError) { + while (queue.length) { + const waitQueueMember = queue.shift(); + if (!waitQueueMember) { + continue; + } + + waitQueueMember.timeout.clear(); + + if (!waitQueueMember[kCancelled]) { + if ( + waitQueueMember.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.DEBUG + ) + ) { + waitQueueMember.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionFailedEvent( + waitQueueMember.serverSelector, + waitQueueMember.topologyDescription, + drainError, + waitQueueMember.operationName + ) + ); + } + waitQueueMember.reject(drainError); + } + } +} + +function processWaitQueue(topology: Topology) { + if (topology.s.state === STATE_CLOSED) { + drainWaitQueue(topology[kWaitQueue], new MongoTopologyClosedError()); + return; + } + + const isSharded = topology.description.type === TopologyType.Sharded; + const serverDescriptions = Array.from(topology.description.servers.values()); + const membersToProcess = topology[kWaitQueue].length; + for (let i = 0; i < membersToProcess; ++i) { + const waitQueueMember = topology[kWaitQueue].shift(); + if (!waitQueueMember) { + continue; + } + + if (waitQueueMember[kCancelled]) { + continue; + } + + let selectedDescriptions; + try { + const serverSelector = waitQueueMember.serverSelector; + const previousServer = waitQueueMember.previousServer; + selectedDescriptions = serverSelector + ? serverSelector( + topology.description, + serverDescriptions, + previousServer ? [previousServer] : [] + ) + : serverDescriptions; + } catch (selectorError) { + waitQueueMember.timeout.clear(); + if ( + topology.client.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.DEBUG + ) + ) { + topology.client.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionFailedEvent( + waitQueueMember.serverSelector, + topology.description, + selectorError, + waitQueueMember.operationName + ) + ); + } + waitQueueMember.reject(selectorError); + continue; + } + + let selectedServer: Server | undefined; + if (selectedDescriptions.length === 0) { + if (!waitQueueMember.waitingLogged) { + if ( + topology.client.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.INFORMATIONAL + ) + ) { + topology.client.mongoLogger?.info( + MongoLoggableComponent.SERVER_SELECTION, + new WaitingForSuitableServerEvent( + waitQueueMember.serverSelector, + topology.description, + topology.s.serverSelectionTimeoutMS !== 0 + ? topology.s.serverSelectionTimeoutMS - (now() - waitQueueMember.startTime) + : -1, + waitQueueMember.operationName + ) + ); + } + waitQueueMember.waitingLogged = true; + } + topology[kWaitQueue].push(waitQueueMember); + continue; + } else if (selectedDescriptions.length === 1) { + selectedServer = topology.s.servers.get(selectedDescriptions[0].address); + } else { + const descriptions = shuffle(selectedDescriptions, 2); + const server1 = topology.s.servers.get(descriptions[0].address); + const server2 = topology.s.servers.get(descriptions[1].address); + + selectedServer = + server1 && server2 && server1.s.operationCount < server2.s.operationCount + ? server1 + : server2; + } + + if (!selectedServer) { + const serverSelectionError = new MongoServerSelectionError( + 'server selection returned a server description but the server was not found in the topology', + topology.description + ); + if ( + topology.client.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.DEBUG + ) + ) { + topology.client.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionFailedEvent( + waitQueueMember.serverSelector, + topology.description, + serverSelectionError, + waitQueueMember.operationName + ) + ); + } + waitQueueMember.reject(serverSelectionError); + return; + } + const transaction = waitQueueMember.transaction; + if (isSharded && transaction && transaction.isActive && selectedServer) { + transaction.pinServer(selectedServer); + } + + waitQueueMember.timeout.clear(); + + if ( + topology.client.mongoLogger?.willLog( + MongoLoggableComponent.SERVER_SELECTION, + SeverityLevel.DEBUG + ) + ) { + topology.client.mongoLogger?.debug( + MongoLoggableComponent.SERVER_SELECTION, + new ServerSelectionSucceededEvent( + waitQueueMember.serverSelector, + waitQueueMember.topologyDescription, + selectedServer.pool.address, + waitQueueMember.operationName + ) + ); + } + waitQueueMember.resolve(selectedServer); + } + + if (topology[kWaitQueue].length > 0) { + // ensure all server monitors attempt monitoring soon + for (const [, server] of topology.s.servers) { + process.nextTick(function scheduleServerCheck() { + return server.requestCheck(); + }); + } + } +} + +function isStaleServerDescription( + topologyDescription: TopologyDescription, + incomingServerDescription: ServerDescription +) { + const currentServerDescription = topologyDescription.servers.get( + incomingServerDescription.address + ); + const currentTopologyVersion = currentServerDescription?.topologyVersion; + return ( + compareTopologyVersion(currentTopologyVersion, incomingServerDescription.topologyVersion) > 0 + ); +} + +/** @public */ +export class ServerCapabilities { + maxWireVersion: number; + minWireVersion: number; + + constructor(hello: Document) { + this.minWireVersion = hello.minWireVersion || 0; + this.maxWireVersion = hello.maxWireVersion || 0; + } + + get hasAggregationCursor(): boolean { + return this.maxWireVersion >= 1; + } + + get hasWriteCommands(): boolean { + return this.maxWireVersion >= 2; + } + get hasTextSearch(): boolean { + return this.minWireVersion >= 0; + } + + get hasAuthCommands(): boolean { + return this.maxWireVersion >= 1; + } + + get hasListCollectionsCommand(): boolean { + return this.maxWireVersion >= 3; + } + + get hasListIndexesCommand(): boolean { + return this.maxWireVersion >= 3; + } + + get supportsSnapshotReads(): boolean { + return this.maxWireVersion >= 13; + } + + get commandsTakeWriteConcern(): boolean { + return this.maxWireVersion >= 5; + } + + get commandsTakeCollation(): boolean { + return this.maxWireVersion >= 5; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/topology_description.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/topology_description.ts new file mode 100644 index 000000000..436321c7f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sdam/topology_description.ts @@ -0,0 +1,521 @@ +import { EJSON, type ObjectId } from '../bson'; +import * as WIRE_CONSTANTS from '../cmap/wire_protocol/constants'; +import { type MongoError, MongoRuntimeError } from '../error'; +import { compareObjectId, shuffle } from '../utils'; +import { ServerType, TopologyType } from './common'; +import { ServerDescription } from './server_description'; +import type { SrvPollingEvent } from './srv_polling'; + +// constants related to compatibility checks +const MIN_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_SERVER_VERSION; +const MAX_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_SERVER_VERSION; +const MIN_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_WIRE_VERSION; +const MAX_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_WIRE_VERSION; + +const MONGOS_OR_UNKNOWN = new Set([ServerType.Mongos, ServerType.Unknown]); +const MONGOS_OR_STANDALONE = new Set([ServerType.Mongos, ServerType.Standalone]); +const NON_PRIMARY_RS_MEMBERS = new Set([ + ServerType.RSSecondary, + ServerType.RSArbiter, + ServerType.RSOther +]); + +/** @public */ +export interface TopologyDescriptionOptions { + heartbeatFrequencyMS?: number; + localThresholdMS?: number; +} + +/** + * Representation of a deployment of servers + * @public + */ +export class TopologyDescription { + type: TopologyType; + setName: string | null; + maxSetVersion: number | null; + maxElectionId: ObjectId | null; + servers: Map; + stale: boolean; + compatible: boolean; + compatibilityError?: string; + logicalSessionTimeoutMinutes: number | null; + heartbeatFrequencyMS: number; + localThresholdMS: number; + commonWireVersion: number; + + /** + * Create a TopologyDescription + */ + constructor( + topologyType: TopologyType, + serverDescriptions: Map | null = null, + setName: string | null = null, + maxSetVersion: number | null = null, + maxElectionId: ObjectId | null = null, + commonWireVersion: number | null = null, + options: TopologyDescriptionOptions | null = null + ) { + options = options ?? {}; + + this.type = topologyType ?? TopologyType.Unknown; + this.servers = serverDescriptions ?? new Map(); + this.stale = false; + this.compatible = true; + this.heartbeatFrequencyMS = options.heartbeatFrequencyMS ?? 0; + this.localThresholdMS = options.localThresholdMS ?? 15; + this.setName = setName ?? null; + this.maxElectionId = maxElectionId ?? null; + this.maxSetVersion = maxSetVersion ?? null; + this.commonWireVersion = commonWireVersion ?? 0; + + // determine server compatibility + for (const serverDescription of this.servers.values()) { + // Load balancer mode is always compatible. + if ( + serverDescription.type === ServerType.Unknown || + serverDescription.type === ServerType.LoadBalancer + ) { + continue; + } + + if (serverDescription.minWireVersion > MAX_SUPPORTED_WIRE_VERSION) { + this.compatible = false; + this.compatibilityError = `Server at ${serverDescription.address} requires wire version ${serverDescription.minWireVersion}, but this version of the driver only supports up to ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`; + } + + if (serverDescription.maxWireVersion < MIN_SUPPORTED_WIRE_VERSION) { + this.compatible = false; + this.compatibilityError = `Server at ${serverDescription.address} reports wire version ${serverDescription.maxWireVersion}, but this version of the driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION}).`; + break; + } + } + + // Whenever a client updates the TopologyDescription from a hello response, it MUST set + // TopologyDescription.logicalSessionTimeoutMinutes to the smallest logicalSessionTimeoutMinutes + // value among ServerDescriptions of all data-bearing server types. If any have a null + // logicalSessionTimeoutMinutes, then TopologyDescription.logicalSessionTimeoutMinutes MUST be + // set to null. + this.logicalSessionTimeoutMinutes = null; + for (const [, server] of this.servers) { + if (server.isReadable) { + if (server.logicalSessionTimeoutMinutes == null) { + // If any of the servers have a null logicalSessionsTimeout, then the whole topology does + this.logicalSessionTimeoutMinutes = null; + break; + } + + if (this.logicalSessionTimeoutMinutes == null) { + // First server with a non null logicalSessionsTimeout + this.logicalSessionTimeoutMinutes = server.logicalSessionTimeoutMinutes; + continue; + } + + // Always select the smaller of the: + // current server logicalSessionsTimeout and the topologies logicalSessionsTimeout + this.logicalSessionTimeoutMinutes = Math.min( + this.logicalSessionTimeoutMinutes, + server.logicalSessionTimeoutMinutes + ); + } + } + } + + /** + * Returns a new TopologyDescription based on the SrvPollingEvent + * @internal + */ + updateFromSrvPollingEvent(ev: SrvPollingEvent, srvMaxHosts = 0): TopologyDescription { + /** The SRV addresses defines the set of addresses we should be using */ + const incomingHostnames = ev.hostnames(); + const currentHostnames = new Set(this.servers.keys()); + + const hostnamesToAdd = new Set(incomingHostnames); + const hostnamesToRemove = new Set(); + for (const hostname of currentHostnames) { + // filter hostnamesToAdd (made from incomingHostnames) down to what is *not* present in currentHostnames + hostnamesToAdd.delete(hostname); + if (!incomingHostnames.has(hostname)) { + // If the SRV Records no longer include this hostname + // we have to stop using it + hostnamesToRemove.add(hostname); + } + } + + if (hostnamesToAdd.size === 0 && hostnamesToRemove.size === 0) { + // No new hosts to add and none to remove + return this; + } + + const serverDescriptions = new Map(this.servers); + for (const removedHost of hostnamesToRemove) { + serverDescriptions.delete(removedHost); + } + + if (hostnamesToAdd.size > 0) { + if (srvMaxHosts === 0) { + // Add all! + for (const hostToAdd of hostnamesToAdd) { + serverDescriptions.set(hostToAdd, new ServerDescription(hostToAdd)); + } + } else if (serverDescriptions.size < srvMaxHosts) { + // Add only the amount needed to get us back to srvMaxHosts + const selectedHosts = shuffle(hostnamesToAdd, srvMaxHosts - serverDescriptions.size); + for (const selectedHostToAdd of selectedHosts) { + serverDescriptions.set(selectedHostToAdd, new ServerDescription(selectedHostToAdd)); + } + } + } + + return new TopologyDescription( + this.type, + serverDescriptions, + this.setName, + this.maxSetVersion, + this.maxElectionId, + this.commonWireVersion, + { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS } + ); + } + + /** + * Returns a copy of this description updated with a given ServerDescription + * @internal + */ + update(serverDescription: ServerDescription): TopologyDescription { + const address = serverDescription.address; + + // potentially mutated values + let { type: topologyType, setName, maxSetVersion, maxElectionId, commonWireVersion } = this; + + const serverType = serverDescription.type; + const serverDescriptions = new Map(this.servers); + + // update common wire version + if (serverDescription.maxWireVersion !== 0) { + if (commonWireVersion == null) { + commonWireVersion = serverDescription.maxWireVersion; + } else { + commonWireVersion = Math.min(commonWireVersion, serverDescription.maxWireVersion); + } + } + + if ( + typeof serverDescription.setName === 'string' && + typeof setName === 'string' && + serverDescription.setName !== setName + ) { + if (topologyType === TopologyType.Single) { + // "Single" Topology with setName mismatch is direct connection usage, mark unknown do not remove + serverDescription = new ServerDescription(address); + } else { + serverDescriptions.delete(address); + } + } + + // update the actual server description + serverDescriptions.set(address, serverDescription); + + if (topologyType === TopologyType.Single) { + // once we are defined as single, that never changes + return new TopologyDescription( + TopologyType.Single, + serverDescriptions, + setName, + maxSetVersion, + maxElectionId, + commonWireVersion, + { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS } + ); + } + + if (topologyType === TopologyType.Unknown) { + if (serverType === ServerType.Standalone && this.servers.size !== 1) { + serverDescriptions.delete(address); + } else { + topologyType = topologyTypeForServerType(serverType); + } + } + + if (topologyType === TopologyType.Sharded) { + if (!MONGOS_OR_UNKNOWN.has(serverType)) { + serverDescriptions.delete(address); + } + } + + if (topologyType === TopologyType.ReplicaSetNoPrimary) { + if (MONGOS_OR_STANDALONE.has(serverType)) { + serverDescriptions.delete(address); + } + + if (serverType === ServerType.RSPrimary) { + const result = updateRsFromPrimary( + serverDescriptions, + serverDescription, + setName, + maxSetVersion, + maxElectionId + ); + + topologyType = result[0]; + setName = result[1]; + maxSetVersion = result[2]; + maxElectionId = result[3]; + } else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) { + const result = updateRsNoPrimaryFromMember(serverDescriptions, serverDescription, setName); + topologyType = result[0]; + setName = result[1]; + } + } + + if (topologyType === TopologyType.ReplicaSetWithPrimary) { + if (MONGOS_OR_STANDALONE.has(serverType)) { + serverDescriptions.delete(address); + topologyType = checkHasPrimary(serverDescriptions); + } else if (serverType === ServerType.RSPrimary) { + const result = updateRsFromPrimary( + serverDescriptions, + serverDescription, + setName, + maxSetVersion, + maxElectionId + ); + + topologyType = result[0]; + setName = result[1]; + maxSetVersion = result[2]; + maxElectionId = result[3]; + } else if (NON_PRIMARY_RS_MEMBERS.has(serverType)) { + topologyType = updateRsWithPrimaryFromMember( + serverDescriptions, + serverDescription, + setName + ); + } else { + topologyType = checkHasPrimary(serverDescriptions); + } + } + + return new TopologyDescription( + topologyType, + serverDescriptions, + setName, + maxSetVersion, + maxElectionId, + commonWireVersion, + { heartbeatFrequencyMS: this.heartbeatFrequencyMS, localThresholdMS: this.localThresholdMS } + ); + } + + get error(): MongoError | null { + const descriptionsWithError = Array.from(this.servers.values()).filter( + (sd: ServerDescription) => sd.error + ); + + if (descriptionsWithError.length > 0) { + return descriptionsWithError[0].error; + } + + return null; + } + + /** + * Determines if the topology description has any known servers + */ + get hasKnownServers(): boolean { + return Array.from(this.servers.values()).some( + (sd: ServerDescription) => sd.type !== ServerType.Unknown + ); + } + + /** + * Determines if this topology description has a data-bearing server available. + */ + get hasDataBearingServers(): boolean { + return Array.from(this.servers.values()).some((sd: ServerDescription) => sd.isDataBearing); + } + + /** + * Determines if the topology has a definition for the provided address + * @internal + */ + hasServer(address: string): boolean { + return this.servers.has(address); + } + + /** + * Returns a JSON-serializable representation of the TopologyDescription. This is primarily + * intended for use with JSON.stringify(). + * + * This method will not throw. + */ + toJSON() { + return EJSON.serialize(this); + } +} + +function topologyTypeForServerType(serverType: ServerType): TopologyType { + switch (serverType) { + case ServerType.Standalone: + return TopologyType.Single; + case ServerType.Mongos: + return TopologyType.Sharded; + case ServerType.RSPrimary: + return TopologyType.ReplicaSetWithPrimary; + case ServerType.RSOther: + case ServerType.RSSecondary: + return TopologyType.ReplicaSetNoPrimary; + default: + return TopologyType.Unknown; + } +} + +function updateRsFromPrimary( + serverDescriptions: Map, + serverDescription: ServerDescription, + setName: string | null = null, + maxSetVersion: number | null = null, + maxElectionId: ObjectId | null = null +): [TopologyType, string | null, number | null, ObjectId | null] { + setName = setName || serverDescription.setName; + if (setName !== serverDescription.setName) { + serverDescriptions.delete(serverDescription.address); + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; + } + + if (serverDescription.maxWireVersion >= 17) { + const electionIdComparison = compareObjectId(maxElectionId, serverDescription.electionId); + const maxElectionIdIsEqual = electionIdComparison === 0; + const maxElectionIdIsLess = electionIdComparison === -1; + const maxSetVersionIsLessOrEqual = + (maxSetVersion ?? -1) <= (serverDescription.setVersion ?? -1); + + if (maxElectionIdIsLess || (maxElectionIdIsEqual && maxSetVersionIsLessOrEqual)) { + // The reported electionId was greater + // or the electionId was equal and reported setVersion was greater + // Always update both values, they are a tuple + maxElectionId = serverDescription.electionId; + maxSetVersion = serverDescription.setVersion; + } else { + // Stale primary + // replace serverDescription with a default ServerDescription of type "Unknown" + serverDescriptions.set( + serverDescription.address, + new ServerDescription(serverDescription.address) + ); + + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; + } + } else { + const electionId = serverDescription.electionId ? serverDescription.electionId : null; + if (serverDescription.setVersion && electionId) { + if (maxSetVersion && maxElectionId) { + if ( + maxSetVersion > serverDescription.setVersion || + compareObjectId(maxElectionId, electionId) > 0 + ) { + // this primary is stale, we must remove it + serverDescriptions.set( + serverDescription.address, + new ServerDescription(serverDescription.address) + ); + + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; + } + } + + maxElectionId = serverDescription.electionId; + } + + if ( + serverDescription.setVersion != null && + (maxSetVersion == null || serverDescription.setVersion > maxSetVersion) + ) { + maxSetVersion = serverDescription.setVersion; + } + } + + // We've heard from the primary. Is it the same primary as before? + for (const [address, server] of serverDescriptions) { + if (server.type === ServerType.RSPrimary && server.address !== serverDescription.address) { + // Reset old primary's type to Unknown. + serverDescriptions.set(address, new ServerDescription(server.address)); + + // There can only be one primary + break; + } + } + + // Discover new hosts from this primary's response. + serverDescription.allHosts.forEach((address: string) => { + if (!serverDescriptions.has(address)) { + serverDescriptions.set(address, new ServerDescription(address)); + } + }); + + // Remove hosts not in the response. + const currentAddresses = Array.from(serverDescriptions.keys()); + const responseAddresses = serverDescription.allHosts; + currentAddresses + .filter((addr: string) => responseAddresses.indexOf(addr) === -1) + .forEach((address: string) => { + serverDescriptions.delete(address); + }); + + return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId]; +} + +function updateRsWithPrimaryFromMember( + serverDescriptions: Map, + serverDescription: ServerDescription, + setName: string | null = null +): TopologyType { + if (setName == null) { + // TODO(NODE-3483): should be an appropriate runtime error + throw new MongoRuntimeError('Argument "setName" is required if connected to a replica set'); + } + + if ( + setName !== serverDescription.setName || + (serverDescription.me && serverDescription.address !== serverDescription.me) + ) { + serverDescriptions.delete(serverDescription.address); + } + + return checkHasPrimary(serverDescriptions); +} + +function updateRsNoPrimaryFromMember( + serverDescriptions: Map, + serverDescription: ServerDescription, + setName: string | null = null +): [TopologyType, string | null] { + const topologyType = TopologyType.ReplicaSetNoPrimary; + setName = setName ?? serverDescription.setName; + if (setName !== serverDescription.setName) { + serverDescriptions.delete(serverDescription.address); + return [topologyType, setName]; + } + + serverDescription.allHosts.forEach((address: string) => { + if (!serverDescriptions.has(address)) { + serverDescriptions.set(address, new ServerDescription(address)); + } + }); + + if (serverDescription.me && serverDescription.address !== serverDescription.me) { + serverDescriptions.delete(serverDescription.address); + } + + return [topologyType, setName]; +} + +function checkHasPrimary(serverDescriptions: Map): TopologyType { + for (const serverDescription of serverDescriptions.values()) { + if (serverDescription.type === ServerType.RSPrimary) { + return TopologyType.ReplicaSetWithPrimary; + } + } + + return TopologyType.ReplicaSetNoPrimary; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sessions.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sessions.ts new file mode 100644 index 000000000..b766d40e2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sessions.ts @@ -0,0 +1,1074 @@ +import { Binary, type Document, Long, type Timestamp } from './bson'; +import type { CommandOptions, Connection } from './cmap/connection'; +import { ConnectionPoolMetrics } from './cmap/metrics'; +import { type MongoDBResponse } from './cmap/wire_protocol/responses'; +import { isSharded } from './cmap/wire_protocol/shared'; +import { PINNED, UNPINNED } from './constants'; +import type { AbstractCursor } from './cursor/abstract_cursor'; +import { + type AnyError, + isRetryableWriteError, + MongoAPIError, + MongoCompatibilityError, + MONGODB_ERROR_CODES, + type MongoDriverError, + MongoError, + MongoErrorLabel, + MongoExpiredSessionError, + MongoInvalidArgumentError, + MongoRuntimeError, + MongoServerError, + MongoTransactionError, + MongoWriteConcernError +} from './error'; +import type { MongoClient, MongoOptions } from './mongo_client'; +import { TypedEventEmitter } from './mongo_types'; +import { executeOperation } from './operations/execute_operation'; +import { RunAdminCommandOperation } from './operations/run_command'; +import { ReadConcernLevel } from './read_concern'; +import { ReadPreference } from './read_preference'; +import { _advanceClusterTime, type ClusterTime, TopologyType } from './sdam/common'; +import { + isTransactionCommand, + Transaction, + type TransactionOptions, + TxnState +} from './transactions'; +import { + ByteUtils, + calculateDurationInMs, + commandSupportsReadConcern, + isPromiseLike, + List, + maxWireVersion, + now, + squashError, + uuidV4 +} from './utils'; +import { WriteConcern } from './write_concern'; + +const minWireVersionForShardedTransactions = 8; + +/** @public */ +export interface ClientSessionOptions { + /** Whether causal consistency should be enabled on this session */ + causalConsistency?: boolean; + /** Whether all read operations should be read from the same snapshot for this session (NOTE: not compatible with `causalConsistency=true`) */ + snapshot?: boolean; + /** The default TransactionOptions to use for transactions started on this session. */ + defaultTransactionOptions?: TransactionOptions; + /** @internal + * The value of timeoutMS used for CSOT. Used to override client timeoutMS */ + defaultTimeoutMS?: number; + + /** @internal */ + owner?: symbol | AbstractCursor; + /** @internal */ + explicit?: boolean; + /** @internal */ + initialClusterTime?: ClusterTime; +} + +/** @public */ +export type WithTransactionCallback = (session: ClientSession) => Promise; + +/** @public */ +export type ClientSessionEvents = { + ended(session: ClientSession): void; +}; + +/** @internal */ +const kServerSession = Symbol('serverSession'); +/** @internal */ +const kSnapshotTime = Symbol('snapshotTime'); +/** @internal */ +const kSnapshotEnabled = Symbol('snapshotEnabled'); +/** @internal */ +const kPinnedConnection = Symbol('pinnedConnection'); +/** @internal Accumulates total number of increments to add to txnNumber when applying session to command */ +const kTxnNumberIncrement = Symbol('txnNumberIncrement'); + +/** @public */ +export interface EndSessionOptions { + /** + * An optional error which caused the call to end this session + * @internal + */ + error?: AnyError; + force?: boolean; + forceClear?: boolean; +} + +/** + * A class representing a client session on the server + * + * NOTE: not meant to be instantiated directly. + * @public + */ +export class ClientSession extends TypedEventEmitter { + /** @internal */ + client: MongoClient; + /** @internal */ + sessionPool: ServerSessionPool; + hasEnded: boolean; + clientOptions?: MongoOptions; + supports: { causalConsistency: boolean }; + clusterTime?: ClusterTime; + operationTime?: Timestamp; + explicit: boolean; + /** @internal */ + owner?: symbol | AbstractCursor; + defaultTransactionOptions: TransactionOptions; + transaction: Transaction; + /** @internal */ + [kServerSession]: ServerSession | null; + /** @internal */ + [kSnapshotTime]?: Timestamp; + /** @internal */ + [kSnapshotEnabled] = false; + /** @internal */ + [kPinnedConnection]?: Connection; + /** @internal */ + [kTxnNumberIncrement]: number; + /** @internal */ + timeoutMS?: number; + + /** + * Create a client session. + * @internal + * @param client - The current client + * @param sessionPool - The server session pool (Internal Class) + * @param options - Optional settings + * @param clientOptions - Optional settings provided when creating a MongoClient + */ + constructor( + client: MongoClient, + sessionPool: ServerSessionPool, + options: ClientSessionOptions, + clientOptions?: MongoOptions + ) { + super(); + + if (client == null) { + // TODO(NODE-3483) + throw new MongoRuntimeError('ClientSession requires a MongoClient'); + } + + if (sessionPool == null || !(sessionPool instanceof ServerSessionPool)) { + // TODO(NODE-3483) + throw new MongoRuntimeError('ClientSession requires a ServerSessionPool'); + } + + options = options ?? {}; + + if (options.snapshot === true) { + this[kSnapshotEnabled] = true; + if (options.causalConsistency === true) { + throw new MongoInvalidArgumentError( + 'Properties "causalConsistency" and "snapshot" are mutually exclusive' + ); + } + } + + this.client = client; + this.sessionPool = sessionPool; + this.hasEnded = false; + this.clientOptions = clientOptions; + this.timeoutMS = options.defaultTimeoutMS ?? client.options?.timeoutMS; + + this.explicit = !!options.explicit; + this[kServerSession] = this.explicit ? this.sessionPool.acquire() : null; + this[kTxnNumberIncrement] = 0; + + const defaultCausalConsistencyValue = this.explicit && options.snapshot !== true; + this.supports = { + // if we can enable causal consistency, do so by default + causalConsistency: options.causalConsistency ?? defaultCausalConsistencyValue + }; + + this.clusterTime = options.initialClusterTime; + + this.operationTime = undefined; + this.owner = options.owner; + this.defaultTransactionOptions = { ...options.defaultTransactionOptions }; + this.transaction = new Transaction(); + } + + /** The server id associated with this session */ + get id(): ServerSessionId | undefined { + return this[kServerSession]?.id; + } + + get serverSession(): ServerSession { + let serverSession = this[kServerSession]; + if (serverSession == null) { + if (this.explicit) { + throw new MongoRuntimeError('Unexpected null serverSession for an explicit session'); + } + if (this.hasEnded) { + throw new MongoRuntimeError('Unexpected null serverSession for an ended implicit session'); + } + serverSession = this.sessionPool.acquire(); + this[kServerSession] = serverSession; + } + return serverSession; + } + + /** Whether or not this session is configured for snapshot reads */ + get snapshotEnabled(): boolean { + return this[kSnapshotEnabled]; + } + + get loadBalanced(): boolean { + return this.client.topology?.description.type === TopologyType.LoadBalanced; + } + + /** @internal */ + get pinnedConnection(): Connection | undefined { + return this[kPinnedConnection]; + } + + /** @internal */ + pin(conn: Connection): void { + if (this[kPinnedConnection]) { + throw TypeError('Cannot pin multiple connections to the same session'); + } + + this[kPinnedConnection] = conn; + conn.emit( + PINNED, + this.inTransaction() ? ConnectionPoolMetrics.TXN : ConnectionPoolMetrics.CURSOR + ); + } + + /** @internal */ + unpin(options?: { force?: boolean; forceClear?: boolean; error?: AnyError }): void { + if (this.loadBalanced) { + return maybeClearPinnedConnection(this, options); + } + + this.transaction.unpinServer(); + } + + get isPinned(): boolean { + return this.loadBalanced ? !!this[kPinnedConnection] : this.transaction.isPinned; + } + + /** + * Ends this session on the server + * + * @param options - Optional settings. Currently reserved for future use + */ + async endSession(options?: EndSessionOptions): Promise { + try { + if (this.inTransaction()) { + await this.abortTransaction(); + } + if (!this.hasEnded) { + const serverSession = this[kServerSession]; + if (serverSession != null) { + // release the server session back to the pool + this.sessionPool.release(serverSession); + // Make sure a new serverSession never makes it onto this ClientSession + Object.defineProperty(this, kServerSession, { + value: ServerSession.clone(serverSession), + writable: false + }); + } + // mark the session as ended, and emit a signal + this.hasEnded = true; + this.emit('ended', this); + } + } catch (error) { + // spec indicates that we should ignore all errors for `endSessions` + squashError(error); + } finally { + maybeClearPinnedConnection(this, { force: true, ...options }); + } + } + + /** + * Advances the operationTime for a ClientSession. + * + * @param operationTime - the `BSON.Timestamp` of the operation type it is desired to advance to + */ + advanceOperationTime(operationTime: Timestamp): void { + if (this.operationTime == null) { + this.operationTime = operationTime; + return; + } + + if (operationTime.greaterThan(this.operationTime)) { + this.operationTime = operationTime; + } + } + + /** + * Advances the clusterTime for a ClientSession to the provided clusterTime of another ClientSession + * + * @param clusterTime - the $clusterTime returned by the server from another session in the form of a document containing the `BSON.Timestamp` clusterTime and signature + */ + advanceClusterTime(clusterTime: ClusterTime): void { + if (!clusterTime || typeof clusterTime !== 'object') { + throw new MongoInvalidArgumentError('input cluster time must be an object'); + } + if (!clusterTime.clusterTime || clusterTime.clusterTime._bsontype !== 'Timestamp') { + throw new MongoInvalidArgumentError( + 'input cluster time "clusterTime" property must be a valid BSON Timestamp' + ); + } + if ( + !clusterTime.signature || + clusterTime.signature.hash?._bsontype !== 'Binary' || + (typeof clusterTime.signature.keyId !== 'bigint' && + typeof clusterTime.signature.keyId !== 'number' && + clusterTime.signature.keyId?._bsontype !== 'Long') // apparently we decode the key to number? + ) { + throw new MongoInvalidArgumentError( + 'input cluster time must have a valid "signature" property with BSON Binary hash and BSON Long keyId' + ); + } + + _advanceClusterTime(this, clusterTime); + } + + /** + * Used to determine if this session equals another + * + * @param session - The session to compare to + */ + equals(session: ClientSession): boolean { + if (!(session instanceof ClientSession)) { + return false; + } + + if (this.id == null || session.id == null) { + return false; + } + + return ByteUtils.equals(this.id.id.buffer, session.id.id.buffer); + } + + /** + * Increment the transaction number on the internal ServerSession + * + * @privateRemarks + * This helper increments a value stored on the client session that will be + * added to the serverSession's txnNumber upon applying it to a command. + * This is because the serverSession is lazily acquired after a connection is obtained + */ + incrementTransactionNumber(): void { + this[kTxnNumberIncrement] += 1; + } + + /** @returns whether this session is currently in a transaction or not */ + inTransaction(): boolean { + return this.transaction.isActive; + } + + /** + * Starts a new transaction with the given options. + * + * @param options - Options for the transaction + */ + startTransaction(options?: TransactionOptions): void { + if (this[kSnapshotEnabled]) { + throw new MongoCompatibilityError('Transactions are not supported in snapshot sessions'); + } + + if (this.inTransaction()) { + throw new MongoTransactionError('Transaction already in progress'); + } + + if (this.isPinned && this.transaction.isCommitted) { + this.unpin(); + } + + const topologyMaxWireVersion = maxWireVersion(this.client.topology); + if ( + isSharded(this.client.topology) && + topologyMaxWireVersion != null && + topologyMaxWireVersion < minWireVersionForShardedTransactions + ) { + throw new MongoCompatibilityError( + 'Transactions are not supported on sharded clusters in MongoDB < 4.2.' + ); + } + + // increment txnNumber + this.incrementTransactionNumber(); + // create transaction state + this.transaction = new Transaction({ + readConcern: + options?.readConcern ?? + this.defaultTransactionOptions.readConcern ?? + this.clientOptions?.readConcern, + writeConcern: + options?.writeConcern ?? + this.defaultTransactionOptions.writeConcern ?? + this.clientOptions?.writeConcern, + readPreference: + options?.readPreference ?? + this.defaultTransactionOptions.readPreference ?? + this.clientOptions?.readPreference, + maxCommitTimeMS: options?.maxCommitTimeMS ?? this.defaultTransactionOptions.maxCommitTimeMS + }); + + this.transaction.transition(TxnState.STARTING_TRANSACTION); + } + + /** + * Commits the currently active transaction in this session. + */ + async commitTransaction(): Promise { + return await endTransaction(this, 'commitTransaction'); + } + + /** + * Aborts the currently active transaction in this session. + */ + async abortTransaction(): Promise { + return await endTransaction(this, 'abortTransaction'); + } + + /** + * This is here to ensure that ClientSession is never serialized to BSON. + */ + toBSON(): never { + throw new MongoRuntimeError('ClientSession cannot be serialized to BSON.'); + } + + /** + * Starts a transaction and runs a provided function, ensuring the commitTransaction is always attempted when all operations run in the function have completed. + * + * **IMPORTANT:** This method requires the function passed in to return a Promise. That promise must be made by `await`-ing all operations in such a way that rejections are propagated to the returned promise. + * + * @remarks + * - If all operations successfully complete and the `commitTransaction` operation is successful, then the provided function will return the result of the provided function. + * - If the transaction is unable to complete or an error is thrown from within the provided function, then the provided function will throw an error. + * - If the transaction is manually aborted within the provided function it will not throw. + * - If the driver needs to attempt to retry the operations, the provided function may be called multiple times. + * + * Checkout a descriptive example here: + * @see https://www.mongodb.com/blog/post/quick-start-nodejs--mongodb--how-to-implement-transactions + * + * If a command inside withTransaction fails: + * - It may cause the transaction on the server to be aborted. + * - This situation is normally handled transparently by the driver. + * - However, if the application catches such an error and does not rethrow it, the driver will not be able to determine whether the transaction was aborted or not. + * - The driver will then retry the transaction indefinitely. + * + * To avoid this situation, the application must not silently handle errors within the provided function. + * If the application needs to handle errors within, it must await all operations such that if an operation is rejected it becomes the rejection of the callback function passed into withTransaction. + * + * @param fn - callback to run within a transaction + * @param options - optional settings for the transaction + * @returns A raw command response or undefined + */ + async withTransaction( + fn: WithTransactionCallback, + options?: TransactionOptions + ): Promise { + const startTime = now(); + return await attemptTransaction(this, startTime, fn, options); + } +} + +const MAX_WITH_TRANSACTION_TIMEOUT = 120000; +const NON_DETERMINISTIC_WRITE_CONCERN_ERRORS = new Set([ + 'CannotSatisfyWriteConcern', + 'UnknownReplWriteConcern', + 'UnsatisfiableWriteConcern' +]); + +function hasNotTimedOut(startTime: number, max: number) { + return calculateDurationInMs(startTime) < max; +} + +function isUnknownTransactionCommitResult(err: MongoError) { + const isNonDeterministicWriteConcernError = + err instanceof MongoServerError && + err.codeName && + NON_DETERMINISTIC_WRITE_CONCERN_ERRORS.has(err.codeName); + + return ( + isMaxTimeMSExpiredError(err) || + (!isNonDeterministicWriteConcernError && + err.code !== MONGODB_ERROR_CODES.UnsatisfiableWriteConcern && + err.code !== MONGODB_ERROR_CODES.UnknownReplWriteConcern) + ); +} + +export function maybeClearPinnedConnection( + session: ClientSession, + options?: EndSessionOptions +): void { + // unpin a connection if it has been pinned + const conn = session[kPinnedConnection]; + const error = options?.error; + + if ( + session.inTransaction() && + error && + error instanceof MongoError && + error.hasErrorLabel(MongoErrorLabel.TransientTransactionError) + ) { + return; + } + + const topology = session.client.topology; + // NOTE: the spec talks about what to do on a network error only, but the tests seem to + // to validate that we don't unpin on _all_ errors? + if (conn && topology != null) { + const servers = Array.from(topology.s.servers.values()); + const loadBalancer = servers[0]; + + if (options?.error == null || options?.force) { + loadBalancer.pool.checkIn(conn); + session[kPinnedConnection] = undefined; + conn.emit( + UNPINNED, + session.transaction.state !== TxnState.NO_TRANSACTION + ? ConnectionPoolMetrics.TXN + : ConnectionPoolMetrics.CURSOR + ); + + if (options?.forceClear) { + loadBalancer.pool.clear({ serviceId: conn.serviceId }); + } + } + } +} + +function isMaxTimeMSExpiredError(err: MongoError) { + if (err == null || !(err instanceof MongoServerError)) { + return false; + } + + return ( + err.code === MONGODB_ERROR_CODES.MaxTimeMSExpired || + (err.writeConcernError && err.writeConcernError.code === MONGODB_ERROR_CODES.MaxTimeMSExpired) + ); +} + +async function attemptTransactionCommit( + session: ClientSession, + startTime: number, + fn: WithTransactionCallback, + result: T, + options: TransactionOptions +): Promise { + try { + await session.commitTransaction(); + return result; + } catch (commitErr) { + if ( + commitErr instanceof MongoError && + hasNotTimedOut(startTime, MAX_WITH_TRANSACTION_TIMEOUT) && + !isMaxTimeMSExpiredError(commitErr) + ) { + if (commitErr.hasErrorLabel(MongoErrorLabel.UnknownTransactionCommitResult)) { + return await attemptTransactionCommit(session, startTime, fn, result, options); + } + + if (commitErr.hasErrorLabel(MongoErrorLabel.TransientTransactionError)) { + return await attemptTransaction(session, startTime, fn, options); + } + } + + throw commitErr; + } +} + +const USER_EXPLICIT_TXN_END_STATES = new Set([ + TxnState.NO_TRANSACTION, + TxnState.TRANSACTION_COMMITTED, + TxnState.TRANSACTION_ABORTED +]); + +function userExplicitlyEndedTransaction(session: ClientSession) { + return USER_EXPLICIT_TXN_END_STATES.has(session.transaction.state); +} + +async function attemptTransaction( + session: ClientSession, + startTime: number, + fn: WithTransactionCallback, + options: TransactionOptions = {} +): Promise { + session.startTransaction(options); + + let promise; + try { + promise = fn(session); + } catch (err) { + promise = Promise.reject(err); + } + + if (!isPromiseLike(promise)) { + try { + await session.abortTransaction(); + } catch (error) { + squashError(error); + } + throw new MongoInvalidArgumentError( + 'Function provided to `withTransaction` must return a Promise' + ); + } + + try { + const result = await promise; + if (userExplicitlyEndedTransaction(session)) { + return result; + } + return await attemptTransactionCommit(session, startTime, fn, result, options); + } catch (err) { + if (session.inTransaction()) { + await session.abortTransaction(); + } + + if ( + err instanceof MongoError && + err.hasErrorLabel(MongoErrorLabel.TransientTransactionError) && + hasNotTimedOut(startTime, MAX_WITH_TRANSACTION_TIMEOUT) + ) { + return await attemptTransaction(session, startTime, fn, options); + } + + if (isMaxTimeMSExpiredError(err)) { + err.addErrorLabel(MongoErrorLabel.UnknownTransactionCommitResult); + } + + throw err; + } +} + +async function endTransaction( + session: ClientSession, + commandName: 'abortTransaction' | 'commitTransaction' +): Promise { + // handle any initial problematic cases + const txnState = session.transaction.state; + + if (txnState === TxnState.NO_TRANSACTION) { + throw new MongoTransactionError('No transaction started'); + } + + if (commandName === 'commitTransaction') { + if ( + txnState === TxnState.STARTING_TRANSACTION || + txnState === TxnState.TRANSACTION_COMMITTED_EMPTY + ) { + // the transaction was never started, we can safely exit here + session.transaction.transition(TxnState.TRANSACTION_COMMITTED_EMPTY); + return; + } + + if (txnState === TxnState.TRANSACTION_ABORTED) { + throw new MongoTransactionError( + 'Cannot call commitTransaction after calling abortTransaction' + ); + } + } else { + if (txnState === TxnState.STARTING_TRANSACTION) { + // the transaction was never started, we can safely exit here + session.transaction.transition(TxnState.TRANSACTION_ABORTED); + return; + } + + if (txnState === TxnState.TRANSACTION_ABORTED) { + throw new MongoTransactionError('Cannot call abortTransaction twice'); + } + + if ( + txnState === TxnState.TRANSACTION_COMMITTED || + txnState === TxnState.TRANSACTION_COMMITTED_EMPTY + ) { + throw new MongoTransactionError( + 'Cannot call abortTransaction after calling commitTransaction' + ); + } + } + + // construct and send the command + const command: Document = { [commandName]: 1 }; + + // apply a writeConcern if specified + let writeConcern; + if (session.transaction.options.writeConcern) { + writeConcern = Object.assign({}, session.transaction.options.writeConcern); + } else if (session.clientOptions && session.clientOptions.writeConcern) { + writeConcern = { w: session.clientOptions.writeConcern.w }; + } + + if (txnState === TxnState.TRANSACTION_COMMITTED) { + writeConcern = Object.assign({ wtimeoutMS: 10000 }, writeConcern, { w: 'majority' }); + } + + if (writeConcern) { + WriteConcern.apply(command, writeConcern); + } + + if (commandName === 'commitTransaction' && session.transaction.options.maxTimeMS) { + Object.assign(command, { maxTimeMS: session.transaction.options.maxTimeMS }); + } + + if (session.transaction.recoveryToken) { + command.recoveryToken = session.transaction.recoveryToken; + } + + try { + // send the command + await executeOperation( + session.client, + new RunAdminCommandOperation(command, { + session, + readPreference: ReadPreference.primary, + bypassPinningCheck: true + }) + ); + if (command.abortTransaction) { + // always unpin on abort regardless of command outcome + session.unpin(); + } + if (commandName !== 'commitTransaction') { + session.transaction.transition(TxnState.TRANSACTION_ABORTED); + if (session.loadBalanced) { + maybeClearPinnedConnection(session, { force: false }); + } + } else { + session.transaction.transition(TxnState.TRANSACTION_COMMITTED); + } + } catch (firstAttemptErr) { + if (command.abortTransaction) { + // always unpin on abort regardless of command outcome + session.unpin(); + } + if (firstAttemptErr instanceof MongoError && isRetryableWriteError(firstAttemptErr)) { + // SPEC-1185: apply majority write concern when retrying commitTransaction + if (command.commitTransaction) { + // per txns spec, must unpin session in this case + session.unpin({ force: true }); + + command.writeConcern = Object.assign({ wtimeout: 10000 }, command.writeConcern, { + w: 'majority' + }); + } + + try { + await executeOperation( + session.client, + new RunAdminCommandOperation(command, { + session, + readPreference: ReadPreference.primary, + bypassPinningCheck: true + }) + ); + if (commandName !== 'commitTransaction') { + session.transaction.transition(TxnState.TRANSACTION_ABORTED); + if (session.loadBalanced) { + maybeClearPinnedConnection(session, { force: false }); + } + } else { + session.transaction.transition(TxnState.TRANSACTION_COMMITTED); + } + } catch (secondAttemptErr) { + handleEndTransactionError(session, commandName, secondAttemptErr); + } + } else { + handleEndTransactionError(session, commandName, firstAttemptErr); + } + } +} + +function handleEndTransactionError( + session: ClientSession, + commandName: 'abortTransaction' | 'commitTransaction', + error: Error +) { + if (commandName !== 'commitTransaction') { + session.transaction.transition(TxnState.TRANSACTION_ABORTED); + if (session.loadBalanced) { + maybeClearPinnedConnection(session, { force: false }); + } + // The spec indicates that if the operation times out or fails with a non-retryable error, we should ignore all errors on `abortTransaction` + return; + } + + session.transaction.transition(TxnState.TRANSACTION_COMMITTED); + if (error instanceof MongoError) { + if ( + isRetryableWriteError(error) || + error instanceof MongoWriteConcernError || + isMaxTimeMSExpiredError(error) + ) { + if (isUnknownTransactionCommitResult(error)) { + error.addErrorLabel(MongoErrorLabel.UnknownTransactionCommitResult); + + // per txns spec, must unpin session in this case + session.unpin({ error }); + } + } else if (error.hasErrorLabel(MongoErrorLabel.TransientTransactionError)) { + session.unpin({ error }); + } + } + + throw error; +} + +/** @public */ +export type ServerSessionId = { id: Binary }; + +/** + * Reflects the existence of a session on the server. Can be reused by the session pool. + * WARNING: not meant to be instantiated directly. For internal use only. + * @public + */ +export class ServerSession { + id: ServerSessionId; + lastUse: number; + txnNumber: number; + isDirty: boolean; + + /** @internal */ + constructor() { + this.id = { id: new Binary(uuidV4(), Binary.SUBTYPE_UUID) }; + this.lastUse = now(); + this.txnNumber = 0; + this.isDirty = false; + } + + /** + * Determines if the server session has timed out. + * + * @param sessionTimeoutMinutes - The server's "logicalSessionTimeoutMinutes" + */ + hasTimedOut(sessionTimeoutMinutes: number): boolean { + // Take the difference of the lastUse timestamp and now, which will result in a value in + // milliseconds, and then convert milliseconds to minutes to compare to `sessionTimeoutMinutes` + const idleTimeMinutes = Math.round( + ((calculateDurationInMs(this.lastUse) % 86400000) % 3600000) / 60000 + ); + + return idleTimeMinutes > sessionTimeoutMinutes - 1; + } + + /** + * @internal + * Cloning meant to keep a readable reference to the server session data + * after ClientSession has ended + */ + static clone(serverSession: ServerSession): Readonly { + const arrayBuffer = new ArrayBuffer(16); + const idBytes = Buffer.from(arrayBuffer); + idBytes.set(serverSession.id.id.buffer); + + const id = new Binary(idBytes, serverSession.id.id.sub_type); + + // Manual prototype construction to avoid modifying the constructor of this class + return Object.setPrototypeOf( + { + id: { id }, + lastUse: serverSession.lastUse, + txnNumber: serverSession.txnNumber, + isDirty: serverSession.isDirty + }, + ServerSession.prototype + ); + } +} + +/** + * Maintains a pool of Server Sessions. + * For internal use only + * @internal + */ +export class ServerSessionPool { + client: MongoClient; + sessions: List; + + constructor(client: MongoClient) { + if (client == null) { + throw new MongoRuntimeError('ServerSessionPool requires a MongoClient'); + } + + this.client = client; + this.sessions = new List(); + } + + /** + * Acquire a Server Session from the pool. + * Iterates through each session in the pool, removing any stale sessions + * along the way. The first non-stale session found is removed from the + * pool and returned. If no non-stale session is found, a new ServerSession is created. + */ + acquire(): ServerSession { + const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10; + + let session: ServerSession | null = null; + + // Try to obtain from session pool + while (this.sessions.length > 0) { + const potentialSession = this.sessions.shift(); + if ( + potentialSession != null && + (!!this.client.topology?.loadBalanced || + !potentialSession.hasTimedOut(sessionTimeoutMinutes)) + ) { + session = potentialSession; + break; + } + } + + // If nothing valid came from the pool make a new one + if (session == null) { + session = new ServerSession(); + } + + return session; + } + + /** + * Release a session to the session pool + * Adds the session back to the session pool if the session has not timed out yet. + * This method also removes any stale sessions from the pool. + * + * @param session - The session to release to the pool + */ + release(session: ServerSession): void { + const sessionTimeoutMinutes = this.client.topology?.logicalSessionTimeoutMinutes ?? 10; + + if (this.client.topology?.loadBalanced && !sessionTimeoutMinutes) { + this.sessions.unshift(session); + } + + if (!sessionTimeoutMinutes) { + return; + } + + this.sessions.prune(session => session.hasTimedOut(sessionTimeoutMinutes)); + + if (!session.hasTimedOut(sessionTimeoutMinutes)) { + if (session.isDirty) { + return; + } + + // otherwise, readd this session to the session pool + this.sessions.unshift(session); + } + } +} + +/** + * Optionally decorate a command with sessions specific keys + * + * @param session - the session tracking transaction state + * @param command - the command to decorate + * @param options - Optional settings passed to calling operation + * + * @internal + */ +export function applySession( + session: ClientSession, + command: Document, + options: CommandOptions +): MongoDriverError | undefined { + if (session.hasEnded) { + return new MongoExpiredSessionError(); + } + + // May acquire serverSession here + const serverSession = session.serverSession; + if (serverSession == null) { + return new MongoRuntimeError('Unable to acquire server session'); + } + + if (options.writeConcern?.w === 0) { + if (session && session.explicit) { + // Error if user provided an explicit session to an unacknowledged write (SPEC-1019) + return new MongoAPIError('Cannot have explicit session with unacknowledged writes'); + } + return; + } + + // mark the last use of this session, and apply the `lsid` + serverSession.lastUse = now(); + command.lsid = serverSession.id; + + const inTxnOrTxnCommand = session.inTransaction() || isTransactionCommand(command); + const isRetryableWrite = !!options.willRetryWrite; + + if (isRetryableWrite || inTxnOrTxnCommand) { + serverSession.txnNumber += session[kTxnNumberIncrement]; + session[kTxnNumberIncrement] = 0; + // TODO(NODE-2674): Preserve int64 sent from MongoDB + command.txnNumber = Long.fromNumber(serverSession.txnNumber); + } + + if (!inTxnOrTxnCommand) { + if (session.transaction.state !== TxnState.NO_TRANSACTION) { + session.transaction.transition(TxnState.NO_TRANSACTION); + } + + if ( + session.supports.causalConsistency && + session.operationTime && + commandSupportsReadConcern(command) + ) { + command.readConcern = command.readConcern || {}; + Object.assign(command.readConcern, { afterClusterTime: session.operationTime }); + } else if (session[kSnapshotEnabled]) { + command.readConcern = command.readConcern || { level: ReadConcernLevel.snapshot }; + if (session[kSnapshotTime] != null) { + Object.assign(command.readConcern, { atClusterTime: session[kSnapshotTime] }); + } + } + + return; + } + + // now attempt to apply transaction-specific sessions data + + // `autocommit` must always be false to differentiate from retryable writes + command.autocommit = false; + + if (session.transaction.state === TxnState.STARTING_TRANSACTION) { + session.transaction.transition(TxnState.TRANSACTION_IN_PROGRESS); + command.startTransaction = true; + + const readConcern = + session.transaction.options.readConcern || session?.clientOptions?.readConcern; + if (readConcern) { + command.readConcern = readConcern; + } + + if (session.supports.causalConsistency && session.operationTime) { + command.readConcern = command.readConcern || {}; + Object.assign(command.readConcern, { afterClusterTime: session.operationTime }); + } + } + return; +} + +export function updateSessionFromResponse(session: ClientSession, document: MongoDBResponse): void { + if (document.$clusterTime) { + _advanceClusterTime(session, document.$clusterTime); + } + + if (document.operationTime && session && session.supports.causalConsistency) { + session.advanceOperationTime(document.operationTime); + } + + if (document.recoveryToken && session && session.inTransaction()) { + session.transaction._recoveryToken = document.recoveryToken; + } + + if (session?.[kSnapshotEnabled] && session[kSnapshotTime] == null) { + // find and aggregate commands return atClusterTime on the cursor + // distinct includes it in the response body + const atClusterTime = document.atClusterTime; + if (atClusterTime) { + session[kSnapshotTime] = atClusterTime; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/sort.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/sort.ts new file mode 100644 index 000000000..6b766b545 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/sort.ts @@ -0,0 +1,132 @@ +import { MongoInvalidArgumentError } from './error'; + +/** @public */ +export type SortDirection = + | 1 + | -1 + | 'asc' + | 'desc' + | 'ascending' + | 'descending' + | { $meta: string }; + +/** @public */ +export type Sort = + | string + | Exclude + | string[] + | { [key: string]: SortDirection } + | Map + | [string, SortDirection][] + | [string, SortDirection]; + +/** Below stricter types were created for sort that correspond with type that the cmd takes */ + +/** @internal */ +export type SortDirectionForCmd = 1 | -1 | { $meta: string }; + +/** @internal */ +export type SortForCmd = Map; + +/** @internal */ +type SortPairForCmd = [string, SortDirectionForCmd]; + +/** @internal */ +function prepareDirection(direction: any = 1): SortDirectionForCmd { + const value = `${direction}`.toLowerCase(); + if (isMeta(direction)) return direction; + switch (value) { + case 'ascending': + case 'asc': + case '1': + return 1; + case 'descending': + case 'desc': + case '-1': + return -1; + default: + throw new MongoInvalidArgumentError(`Invalid sort direction: ${JSON.stringify(direction)}`); + } +} + +/** @internal */ +function isMeta(t: SortDirection): t is { $meta: string } { + return typeof t === 'object' && t != null && '$meta' in t && typeof t.$meta === 'string'; +} + +/** @internal */ +function isPair(t: Sort): t is [string, SortDirection] { + if (Array.isArray(t) && t.length === 2) { + try { + prepareDirection(t[1]); + return true; + } catch (e) { + return false; + } + } + return false; +} + +function isDeep(t: Sort): t is [string, SortDirection][] { + return Array.isArray(t) && Array.isArray(t[0]); +} + +function isMap(t: Sort): t is Map { + return t instanceof Map && t.size > 0; +} + +/** @internal */ +function pairToMap(v: [string, SortDirection]): SortForCmd { + return new Map([[`${v[0]}`, prepareDirection([v[1]])]]); +} + +/** @internal */ +function deepToMap(t: [string, SortDirection][]): SortForCmd { + const sortEntries: SortPairForCmd[] = t.map(([k, v]) => [`${k}`, prepareDirection(v)]); + return new Map(sortEntries); +} + +/** @internal */ +function stringsToMap(t: string[]): SortForCmd { + const sortEntries: SortPairForCmd[] = t.map(key => [`${key}`, 1]); + return new Map(sortEntries); +} + +/** @internal */ +function objectToMap(t: { [key: string]: SortDirection }): SortForCmd { + const sortEntries: SortPairForCmd[] = Object.entries(t).map(([k, v]) => [ + `${k}`, + prepareDirection(v) + ]); + return new Map(sortEntries); +} + +/** @internal */ +function mapToMap(t: Map): SortForCmd { + const sortEntries: SortPairForCmd[] = Array.from(t).map(([k, v]) => [ + `${k}`, + prepareDirection(v) + ]); + return new Map(sortEntries); +} + +/** converts a Sort type into a type that is valid for the server (SortForCmd) */ +export function formatSort( + sort: Sort | undefined, + direction?: SortDirection +): SortForCmd | undefined { + if (sort == null) return undefined; + if (typeof sort === 'string') return new Map([[sort, prepareDirection(direction)]]); + if (typeof sort !== 'object') { + throw new MongoInvalidArgumentError( + `Invalid sort format: ${JSON.stringify(sort)} Sort must be a valid object` + ); + } + if (!Array.isArray(sort)) { + return isMap(sort) ? mapToMap(sort) : Object.keys(sort).length ? objectToMap(sort) : undefined; + } + if (!sort.length) return undefined; + if (isDeep(sort)) return deepToMap(sort); + if (isPair(sort)) return pairToMap(sort); + return stringsToMap(sort); +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/timeout.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/timeout.ts new file mode 100644 index 000000000..7d0af2383 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/timeout.ts @@ -0,0 +1,96 @@ +import { clearTimeout, setTimeout } from 'timers'; + +import { MongoInvalidArgumentError } from './error'; +import { noop } from './utils'; + +/** @internal */ +export class TimeoutError extends Error { + override get name(): 'TimeoutError' { + return 'TimeoutError'; + } + + constructor(message: string, options?: { cause?: Error }) { + super(message, options); + } + + static is(error: unknown): error is TimeoutError { + return ( + error != null && typeof error === 'object' && 'name' in error && error.name === 'TimeoutError' + ); + } +} + +type Executor = ConstructorParameters>[0]; +type Reject = Parameters>[0]>[1]; +/** + * @internal + * This class is an abstraction over timeouts + * The Timeout class can only be in the pending or rejected states. It is guaranteed not to resolve + * if interacted with exclusively through its public API + * */ +export class Timeout extends Promise { + get [Symbol.toStringTag](): 'MongoDBTimeout' { + return 'MongoDBTimeout'; + } + + private id?: NodeJS.Timeout; + + public readonly start: number; + public ended: number | null = null; + public duration: number; + public timedOut = false; + + /** Create a new timeout that expires in `duration` ms */ + private constructor(executor: Executor = () => null, duration: number, unref = false) { + let reject!: Reject; + + if (duration < 0) { + throw new MongoInvalidArgumentError('Cannot create a Timeout with a negative duration'); + } + + super((_, promiseReject) => { + reject = promiseReject; + + executor(noop, promiseReject); + }); + + this.duration = duration; + this.start = Math.trunc(performance.now()); + + if (this.duration > 0) { + this.id = setTimeout(() => { + this.ended = Math.trunc(performance.now()); + this.timedOut = true; + reject(new TimeoutError(`Expired after ${duration}ms`)); + }, this.duration); + if (typeof this.id.unref === 'function' && unref) { + // Ensure we do not keep the Node.js event loop running + this.id.unref(); + } + } + } + + /** + * Clears the underlying timeout. This method is idempotent + */ + clear(): void { + clearTimeout(this.id); + this.id = undefined; + } + + public static expires(durationMS: number, unref?: boolean): Timeout { + return new Timeout(undefined, durationMS, unref); + } + + static is(timeout: unknown): timeout is Timeout { + return ( + typeof timeout === 'object' && + timeout != null && + Symbol.toStringTag in timeout && + timeout[Symbol.toStringTag] === 'MongoDBTimeout' && + 'then' in timeout && + // eslint-disable-next-line github/no-then + typeof timeout.then === 'function' + ); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/transactions.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/transactions.ts new file mode 100644 index 000000000..7ee8660b9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/transactions.ts @@ -0,0 +1,188 @@ +import type { Document } from './bson'; +import { MongoRuntimeError, MongoTransactionError } from './error'; +import type { CommandOperationOptions } from './operations/command'; +import { ReadConcern, type ReadConcernLike } from './read_concern'; +import type { ReadPreferenceLike } from './read_preference'; +import { ReadPreference } from './read_preference'; +import type { Server } from './sdam/server'; +import { WriteConcern } from './write_concern'; + +/** @internal */ +export const TxnState = Object.freeze({ + NO_TRANSACTION: 'NO_TRANSACTION', + STARTING_TRANSACTION: 'STARTING_TRANSACTION', + TRANSACTION_IN_PROGRESS: 'TRANSACTION_IN_PROGRESS', + TRANSACTION_COMMITTED: 'TRANSACTION_COMMITTED', + TRANSACTION_COMMITTED_EMPTY: 'TRANSACTION_COMMITTED_EMPTY', + TRANSACTION_ABORTED: 'TRANSACTION_ABORTED' +} as const); + +/** @internal */ +export type TxnState = (typeof TxnState)[keyof typeof TxnState]; + +const stateMachine: { [state in TxnState]: TxnState[] } = { + [TxnState.NO_TRANSACTION]: [TxnState.NO_TRANSACTION, TxnState.STARTING_TRANSACTION], + [TxnState.STARTING_TRANSACTION]: [ + TxnState.TRANSACTION_IN_PROGRESS, + TxnState.TRANSACTION_COMMITTED, + TxnState.TRANSACTION_COMMITTED_EMPTY, + TxnState.TRANSACTION_ABORTED + ], + [TxnState.TRANSACTION_IN_PROGRESS]: [ + TxnState.TRANSACTION_IN_PROGRESS, + TxnState.TRANSACTION_COMMITTED, + TxnState.TRANSACTION_ABORTED + ], + [TxnState.TRANSACTION_COMMITTED]: [ + TxnState.TRANSACTION_COMMITTED, + TxnState.TRANSACTION_COMMITTED_EMPTY, + TxnState.STARTING_TRANSACTION, + TxnState.NO_TRANSACTION + ], + [TxnState.TRANSACTION_ABORTED]: [TxnState.STARTING_TRANSACTION, TxnState.NO_TRANSACTION], + [TxnState.TRANSACTION_COMMITTED_EMPTY]: [ + TxnState.TRANSACTION_COMMITTED_EMPTY, + TxnState.NO_TRANSACTION + ] +}; + +const ACTIVE_STATES: Set = new Set([ + TxnState.STARTING_TRANSACTION, + TxnState.TRANSACTION_IN_PROGRESS +]); + +const COMMITTED_STATES: Set = new Set([ + TxnState.TRANSACTION_COMMITTED, + TxnState.TRANSACTION_COMMITTED_EMPTY, + TxnState.TRANSACTION_ABORTED +]); + +/** + * Configuration options for a transaction. + * @public + */ +export interface TransactionOptions extends CommandOperationOptions { + // TODO(NODE-3344): These options use the proper class forms of these settings, it should accept the basic enum values too + /** A default read concern for commands in this transaction */ + readConcern?: ReadConcernLike; + /** A default writeConcern for commands in this transaction */ + writeConcern?: WriteConcern; + /** A default read preference for commands in this transaction */ + readPreference?: ReadPreferenceLike; + /** Specifies the maximum amount of time to allow a commit action on a transaction to run in milliseconds */ + maxCommitTimeMS?: number; +} + +/** + * @public + * A class maintaining state related to a server transaction. Internal Only + */ +export class Transaction { + /** @internal */ + state: TxnState; + options: TransactionOptions; + /** @internal */ + _pinnedServer?: Server; + /** @internal */ + _recoveryToken?: Document; + + /** Create a transaction @internal */ + constructor(options?: TransactionOptions) { + options = options ?? {}; + this.state = TxnState.NO_TRANSACTION; + this.options = {}; + + const writeConcern = WriteConcern.fromOptions(options); + if (writeConcern) { + if (writeConcern.w === 0) { + throw new MongoTransactionError('Transactions do not support unacknowledged write concern'); + } + + this.options.writeConcern = writeConcern; + } + + if (options.readConcern) { + this.options.readConcern = ReadConcern.fromOptions(options); + } + + if (options.readPreference) { + this.options.readPreference = ReadPreference.fromOptions(options); + } + + if (options.maxCommitTimeMS) { + this.options.maxTimeMS = options.maxCommitTimeMS; + } + + // TODO: This isn't technically necessary + this._pinnedServer = undefined; + this._recoveryToken = undefined; + } + + /** @internal */ + get server(): Server | undefined { + return this._pinnedServer; + } + + get recoveryToken(): Document | undefined { + return this._recoveryToken; + } + + get isPinned(): boolean { + return !!this.server; + } + + /** @returns Whether the transaction has started */ + get isStarting(): boolean { + return this.state === TxnState.STARTING_TRANSACTION; + } + + /** + * @returns Whether this session is presently in a transaction + */ + get isActive(): boolean { + return ACTIVE_STATES.has(this.state); + } + + get isCommitted(): boolean { + return COMMITTED_STATES.has(this.state); + } + /** + * Transition the transaction in the state machine + * @internal + * @param nextState - The new state to transition to + */ + transition(nextState: TxnState): void { + const nextStates = stateMachine[this.state]; + if (nextStates && nextStates.includes(nextState)) { + this.state = nextState; + if ( + this.state === TxnState.NO_TRANSACTION || + this.state === TxnState.STARTING_TRANSACTION || + this.state === TxnState.TRANSACTION_ABORTED + ) { + this.unpinServer(); + } + return; + } + + throw new MongoRuntimeError( + `Attempted illegal state transition from [${this.state}] to [${nextState}]` + ); + } + + /** @internal */ + pinServer(server: Server): void { + if (this.isActive) { + this._pinnedServer = server; + } + } + + /** @internal */ + unpinServer(): void { + this._pinnedServer = undefined; + } +} + +export function isTransactionCommand(command: Document): boolean { + return !!(command.commitTransaction || command.abortTransaction); +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/utils.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/utils.ts new file mode 100644 index 000000000..57079b1f6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/utils.ts @@ -0,0 +1,1335 @@ +import * as crypto from 'crypto'; +import type { SrvRecord } from 'dns'; +import { type EventEmitter } from 'events'; +import { promises as fs } from 'fs'; +import * as http from 'http'; +import * as url from 'url'; +import { URL } from 'url'; +import { promisify } from 'util'; + +import { type Document, ObjectId, resolveBSONOptions } from './bson'; +import type { Connection } from './cmap/connection'; +import { MAX_SUPPORTED_WIRE_VERSION } from './cmap/wire_protocol/constants'; +import type { Collection } from './collection'; +import { LEGACY_HELLO_COMMAND } from './constants'; +import type { AbstractCursor } from './cursor/abstract_cursor'; +import type { FindCursor } from './cursor/find_cursor'; +import type { Db } from './db'; +import { + type AnyError, + MongoCompatibilityError, + MongoInvalidArgumentError, + MongoNetworkTimeoutError, + MongoNotConnectedError, + MongoParseError, + MongoRuntimeError +} from './error'; +import type { Explain } from './explain'; +import type { MongoClient } from './mongo_client'; +import type { CommandOperationOptions, OperationParent } from './operations/command'; +import type { Hint, OperationOptions } from './operations/operation'; +import { ReadConcern } from './read_concern'; +import { ReadPreference } from './read_preference'; +import { ServerType } from './sdam/common'; +import type { Server } from './sdam/server'; +import type { Topology } from './sdam/topology'; +import type { ClientSession } from './sessions'; +import { WriteConcern } from './write_concern'; + +/** + * MongoDB Driver style callback + * @public + */ +export type Callback = (error?: AnyError, result?: T) => void; + +export type AnyOptions = Document; + +export const ByteUtils = { + toLocalBufferType(this: void, buffer: Buffer | Uint8Array): Buffer { + return Buffer.isBuffer(buffer) + ? buffer + : Buffer.from(buffer.buffer, buffer.byteOffset, buffer.byteLength); + }, + + equals(this: void, seqA: Uint8Array, seqB: Uint8Array) { + return ByteUtils.toLocalBufferType(seqA).equals(seqB); + }, + + compare(this: void, seqA: Uint8Array, seqB: Uint8Array) { + return ByteUtils.toLocalBufferType(seqA).compare(seqB); + }, + + toBase64(this: void, uint8array: Uint8Array) { + return ByteUtils.toLocalBufferType(uint8array).toString('base64'); + } +}; + +/** + * Returns true if value is a Uint8Array or a Buffer + * @param value - any value that may be a Uint8Array + */ +export function isUint8Array(value: unknown): value is Uint8Array { + return ( + value != null && + typeof value === 'object' && + Symbol.toStringTag in value && + value[Symbol.toStringTag] === 'Uint8Array' + ); +} + +/** + * Determines if a connection's address matches a user provided list + * of domain wildcards. + */ +export function hostMatchesWildcards(host: string, wildcards: string[]): boolean { + for (const wildcard of wildcards) { + if ( + host === wildcard || + (wildcard.startsWith('*.') && host?.endsWith(wildcard.substring(2, wildcard.length))) || + (wildcard.startsWith('*/') && host?.endsWith(wildcard.substring(2, wildcard.length))) + ) { + return true; + } + } + return false; +} + +/** + * Ensure Hint field is in a shape we expect: + * - object of index names mapping to 1 or -1 + * - just an index name + * @internal + */ +export function normalizeHintField(hint?: Hint): Hint | undefined { + let finalHint = undefined; + + if (typeof hint === 'string') { + finalHint = hint; + } else if (Array.isArray(hint)) { + finalHint = {}; + + hint.forEach(param => { + finalHint[param] = 1; + }); + } else if (hint != null && typeof hint === 'object') { + finalHint = {} as Document; + for (const name in hint) { + finalHint[name] = hint[name]; + } + } + + return finalHint; +} + +const TO_STRING = (object: unknown) => Object.prototype.toString.call(object); +/** + * Checks if arg is an Object: + * - **NOTE**: the check is based on the `[Symbol.toStringTag]() === 'Object'` + * @internal + */ + +export function isObject(arg: unknown): arg is object { + return '[object Object]' === TO_STRING(arg); +} + +/** @internal */ +export function mergeOptions(target: T, source: S): T & S { + return { ...target, ...source }; +} + +/** @internal */ +export function filterOptions(options: AnyOptions, names: ReadonlyArray): AnyOptions { + const filterOptions: AnyOptions = {}; + + for (const name in options) { + if (names.includes(name)) { + filterOptions[name] = options[name]; + } + } + + // Filtered options + return filterOptions; +} + +interface HasRetryableWrites { + retryWrites?: boolean; +} +/** + * Applies retryWrites: true to a command if retryWrites is set on the command's database. + * @internal + * + * @param target - The target command to which we will apply retryWrites. + * @param db - The database from which we can inherit a retryWrites value. + */ +export function applyRetryableWrites(target: T, db?: Db): T { + if (db && db.s.options?.retryWrites) { + target.retryWrites = true; + } + + return target; +} + +/** + * Applies a write concern to a command based on well defined inheritance rules, optionally + * detecting support for the write concern in the first place. + * @internal + * + * @param target - the target command we will be applying the write concern to + * @param sources - sources where we can inherit default write concerns from + * @param options - optional settings passed into a command for write concern overrides + */ + +/** + * Checks if a given value is a Promise + * + * @typeParam T - The resolution type of the possible promise + * @param value - An object that could be a promise + * @returns true if the provided value is a Promise + */ +export function isPromiseLike(value?: unknown): value is PromiseLike { + return ( + value != null && + typeof value === 'object' && + 'then' in value && + // eslint-disable-next-line github/no-then + typeof value.then === 'function' + ); +} + +/** + * Applies collation to a given command. + * @internal + * + * @param command - the command on which to apply collation + * @param target - target of command + * @param options - options containing collation settings + */ +export function decorateWithCollation( + command: Document, + target: MongoClient | Db | Collection, + options: AnyOptions +): void { + const capabilities = getTopology(target).capabilities; + if (options.collation && typeof options.collation === 'object') { + if (capabilities && capabilities.commandsTakeCollation) { + command.collation = options.collation; + } else { + throw new MongoCompatibilityError(`Current topology does not support collation`); + } + } +} + +/** + * Applies a read concern to a given command. + * @internal + * + * @param command - the command on which to apply the read concern + * @param coll - the parent collection of the operation calling this method + */ +export function decorateWithReadConcern( + command: Document, + coll: { s: { readConcern?: ReadConcern } }, + options?: OperationOptions +): void { + if (options && options.session && options.session.inTransaction()) { + return; + } + const readConcern = Object.assign({}, command.readConcern || {}); + if (coll.s.readConcern) { + Object.assign(readConcern, coll.s.readConcern); + } + + if (Object.keys(readConcern).length > 0) { + Object.assign(command, { readConcern: readConcern }); + } +} + +/** + * Applies an explain to a given command. + * @internal + * + * @param command - the command on which to apply the explain + * @param options - the options containing the explain verbosity + */ +export function decorateWithExplain(command: Document, explain: Explain): Document { + if (command.explain) { + return command; + } + + return { explain: command, verbosity: explain.verbosity }; +} + +/** + * @internal + */ +export type TopologyProvider = + | MongoClient + | ClientSession + | FindCursor + | AbstractCursor + | Collection + | Db; + +/** + * A helper function to get the topology from a given provider. Throws + * if the topology cannot be found. + * @throws MongoNotConnectedError + * @internal + */ +export function getTopology(provider: TopologyProvider): Topology { + // MongoClient or ClientSession or AbstractCursor + if ('topology' in provider && provider.topology) { + return provider.topology; + } else if ('client' in provider && provider.client.topology) { + return provider.client.topology; + } + + throw new MongoNotConnectedError('MongoClient must be connected to perform this operation'); +} + +/** @internal */ +export function ns(ns: string): MongoDBNamespace { + return MongoDBNamespace.fromString(ns); +} + +/** @public */ +export class MongoDBNamespace { + /** + * Create a namespace object + * + * @param db - database name + * @param collection - collection name + */ + constructor(public db: string, public collection?: string) { + this.collection = collection === '' ? undefined : collection; + } + + toString(): string { + return this.collection ? `${this.db}.${this.collection}` : this.db; + } + + withCollection(collection: string): MongoDBCollectionNamespace { + return new MongoDBCollectionNamespace(this.db, collection); + } + + static fromString(namespace?: string): MongoDBNamespace { + if (typeof namespace !== 'string' || namespace === '') { + // TODO(NODE-3483): Replace with MongoNamespaceError + throw new MongoRuntimeError(`Cannot parse namespace from "${namespace}"`); + } + + const [db, ...collectionParts] = namespace.split('.'); + const collection = collectionParts.join('.'); + return new MongoDBNamespace(db, collection === '' ? undefined : collection); + } +} + +/** + * @public + * + * A class representing a collection's namespace. This class enforces (through Typescript) that + * the `collection` portion of the namespace is defined and should only be + * used in scenarios where this can be guaranteed. + */ +export class MongoDBCollectionNamespace extends MongoDBNamespace { + constructor(db: string, override collection: string) { + super(db, collection); + } + + static override fromString(namespace?: string): MongoDBCollectionNamespace { + return super.fromString(namespace) as MongoDBCollectionNamespace; + } +} + +/** @internal */ +export function* makeCounter(seed = 0): Generator { + let count = seed; + while (true) { + const newCount = count; + count += 1; + yield newCount; + } +} + +/** + * Synchronously Generate a UUIDv4 + * @internal + */ +export function uuidV4(): Buffer { + const result = crypto.randomBytes(16); + result[6] = (result[6] & 0x0f) | 0x40; + result[8] = (result[8] & 0x3f) | 0x80; + return result; +} + +/** + * A helper function for determining `maxWireVersion` between legacy and new topology instances + * @internal + */ +export function maxWireVersion(topologyOrServer?: Connection | Topology | Server): number { + if (topologyOrServer) { + if (topologyOrServer.loadBalanced || topologyOrServer.serverApi?.version) { + // Since we do not have a monitor in the load balanced mode, + // we assume the load-balanced server is always pointed at the latest mongodb version. + // There is a risk that for on-prem deployments + // that don't upgrade immediately that this could alert to the + // application that a feature is available that is actually not. + // We also return the max supported wire version for serverAPI. + return MAX_SUPPORTED_WIRE_VERSION; + } + if (topologyOrServer.hello) { + return topologyOrServer.hello.maxWireVersion; + } + + if ('lastHello' in topologyOrServer && typeof topologyOrServer.lastHello === 'function') { + const lastHello = topologyOrServer.lastHello(); + if (lastHello) { + return lastHello.maxWireVersion; + } + } + + if ( + topologyOrServer.description && + 'maxWireVersion' in topologyOrServer.description && + topologyOrServer.description.maxWireVersion != null + ) { + return topologyOrServer.description.maxWireVersion; + } + } + + return 0; +} + +/** @internal */ +export function arrayStrictEqual(arr: unknown[], arr2: unknown[]): boolean { + if (!Array.isArray(arr) || !Array.isArray(arr2)) { + return false; + } + + return arr.length === arr2.length && arr.every((elt, idx) => elt === arr2[idx]); +} + +/** @internal */ +export function errorStrictEqual(lhs?: AnyError | null, rhs?: AnyError | null): boolean { + if (lhs === rhs) { + return true; + } + + if (!lhs || !rhs) { + return lhs === rhs; + } + + if ((lhs == null && rhs != null) || (lhs != null && rhs == null)) { + return false; + } + + if (lhs.constructor.name !== rhs.constructor.name) { + return false; + } + + if (lhs.message !== rhs.message) { + return false; + } + + return true; +} + +interface StateTable { + [key: string]: string[]; +} +interface ObjectWithState { + s: { state: string }; + emit(event: 'stateChanged', state: string, newState: string): void; +} +interface StateTransitionFunction { + (target: ObjectWithState, newState: string): void; +} + +/** @public */ +export type EventEmitterWithState = { + /** @internal */ + stateChanged(previous: string, current: string): void; +}; + +/** @internal */ +export function makeStateMachine(stateTable: StateTable): StateTransitionFunction { + return function stateTransition(target, newState) { + const legalStates = stateTable[target.s.state]; + if (legalStates && legalStates.indexOf(newState) < 0) { + throw new MongoRuntimeError( + `illegal state transition from [${target.s.state}] => [${newState}], allowed: [${legalStates}]` + ); + } + + target.emit('stateChanged', target.s.state, newState); + target.s.state = newState; + }; +} + +/** @internal */ +export function now(): number { + const hrtime = process.hrtime(); + return Math.floor(hrtime[0] * 1000 + hrtime[1] / 1000000); +} + +/** @internal */ +export function calculateDurationInMs(started: number | undefined): number { + if (typeof started !== 'number') { + return -1; + } + + const elapsed = now() - started; + return elapsed < 0 ? 0 : elapsed; +} + +/** @internal */ +export function hasAtomicOperators(doc: Document | Document[]): boolean { + if (Array.isArray(doc)) { + for (const document of doc) { + if (hasAtomicOperators(document)) { + return true; + } + } + return false; + } + + const keys = Object.keys(doc); + return keys.length > 0 && keys[0][0] === '$'; +} + +/** + * Merge inherited properties from parent into options, prioritizing values from options, + * then values from parent. + * @internal + */ +export function resolveOptions( + parent: OperationParent | undefined, + options?: T +): T { + const result: T = Object.assign({}, options, resolveBSONOptions(options, parent)); + + // Users cannot pass a readConcern/writeConcern to operations in a transaction + const session = options?.session; + if (!session?.inTransaction()) { + const readConcern = ReadConcern.fromOptions(options) ?? parent?.readConcern; + if (readConcern) { + result.readConcern = readConcern; + } + + const writeConcern = WriteConcern.fromOptions(options) ?? parent?.writeConcern; + if (writeConcern) { + result.writeConcern = writeConcern; + } + } + + const readPreference = ReadPreference.fromOptions(options) ?? parent?.readPreference; + if (readPreference) { + result.readPreference = readPreference; + } + + return result; +} + +export function isSuperset(set: Set | any[], subset: Set | any[]): boolean { + set = Array.isArray(set) ? new Set(set) : set; + subset = Array.isArray(subset) ? new Set(subset) : subset; + for (const elem of subset) { + if (!set.has(elem)) { + return false; + } + } + return true; +} + +/** + * Checks if the document is a Hello request + * @internal + */ +export function isHello(doc: Document): boolean { + return doc[LEGACY_HELLO_COMMAND] || doc.hello ? true : false; +} + +/** Returns the items that are uniquely in setA */ +export function setDifference(setA: Iterable, setB: Iterable): Set { + const difference = new Set(setA); + for (const elem of setB) { + difference.delete(elem); + } + return difference; +} + +const HAS_OWN = (object: unknown, prop: string) => + Object.prototype.hasOwnProperty.call(object, prop); + +export function isRecord( + value: unknown, + requiredKeys: T +): value is Record; +export function isRecord(value: unknown): value is Record; +export function isRecord( + value: unknown, + requiredKeys: string[] | undefined = undefined +): value is Record { + if (!isObject(value)) { + return false; + } + + const ctor = (value as any).constructor; + if (ctor && ctor.prototype) { + if (!isObject(ctor.prototype)) { + return false; + } + + // Check to see if some method exists from the Object exists + if (!HAS_OWN(ctor.prototype, 'isPrototypeOf')) { + return false; + } + } + + if (requiredKeys) { + const keys = Object.keys(value as Record); + return isSuperset(keys, requiredKeys); + } + + return true; +} + +/** + * Make a deep copy of an object + * + * NOTE: This is not meant to be the perfect implementation of a deep copy, + * but instead something that is good enough for the purposes of + * command monitoring. + */ +export function deepCopy(value: T): T { + if (value == null) { + return value; + } else if (Array.isArray(value)) { + return value.map(item => deepCopy(item)) as unknown as T; + } else if (isRecord(value)) { + const res = {} as any; + for (const key in value) { + res[key] = deepCopy(value[key]); + } + return res; + } + + const ctor = (value as any).constructor; + if (ctor) { + switch (ctor.name.toLowerCase()) { + case 'date': + return new ctor(Number(value)); + case 'map': + return new Map(value as any) as unknown as T; + case 'set': + return new Set(value as any) as unknown as T; + case 'buffer': + return Buffer.from(value as unknown as Buffer) as unknown as T; + } + } + + return value; +} + +type ListNode = { + value: T; + next: ListNode | HeadNode; + prev: ListNode | HeadNode; +}; + +type HeadNode = { + value: null; + next: ListNode; + prev: ListNode; +}; + +/** + * When a list is empty the head is a reference with pointers to itself + * So this type represents that self referential state + */ +type EmptyNode = { + value: null; + next: EmptyNode; + prev: EmptyNode; +}; + +/** + * A sequential list of items in a circularly linked list + * @remarks + * The head node is special, it is always defined and has a value of null. + * It is never "included" in the list, in that, it is not returned by pop/shift or yielded by the iterator. + * The circular linkage and always defined head node are to reduce checks for null next/prev references to zero. + * New nodes are declared as object literals with keys always in the same order: next, prev, value. + * @internal + */ +export class List { + private readonly head: HeadNode | EmptyNode; + private count: number; + + get length() { + return this.count; + } + + get [Symbol.toStringTag]() { + return 'List' as const; + } + + constructor() { + this.count = 0; + + // this is carefully crafted: + // declaring a complete and consistently key ordered + // object is beneficial to the runtime optimizations + this.head = { + next: null, + prev: null, + value: null + } as unknown as EmptyNode; + this.head.next = this.head; + this.head.prev = this.head; + } + + toArray() { + return Array.from(this); + } + + toString() { + return `head <=> ${this.toArray().join(' <=> ')} <=> head`; + } + + *[Symbol.iterator](): Generator { + for (const node of this.nodes()) { + yield node.value; + } + } + + private *nodes(): Generator, void, void> { + let ptr: HeadNode | ListNode | EmptyNode = this.head.next; + while (ptr !== this.head) { + // Save next before yielding so that we make removing within iteration safe + const { next } = ptr as ListNode; + yield ptr as ListNode; + ptr = next; + } + } + + /** Insert at end of list */ + push(value: T) { + this.count += 1; + const newNode: ListNode = { + next: this.head as HeadNode, + prev: this.head.prev as ListNode, + value + }; + this.head.prev.next = newNode; + this.head.prev = newNode; + } + + /** Inserts every item inside an iterable instead of the iterable itself */ + pushMany(iterable: Iterable) { + for (const value of iterable) { + this.push(value); + } + } + + /** Insert at front of list */ + unshift(value: T) { + this.count += 1; + const newNode: ListNode = { + next: this.head.next as ListNode, + prev: this.head as HeadNode, + value + }; + this.head.next.prev = newNode; + this.head.next = newNode; + } + + private remove(node: ListNode | EmptyNode): T | null { + if (node === this.head || this.length === 0) { + return null; + } + + this.count -= 1; + + const prevNode = node.prev; + const nextNode = node.next; + prevNode.next = nextNode; + nextNode.prev = prevNode; + + return node.value; + } + + /** Removes the first node at the front of the list */ + shift(): T | null { + return this.remove(this.head.next); + } + + /** Removes the last node at the end of the list */ + pop(): T | null { + return this.remove(this.head.prev); + } + + /** Iterates through the list and removes nodes where filter returns true */ + prune(filter: (value: T) => boolean) { + for (const node of this.nodes()) { + if (filter(node.value)) { + this.remove(node); + } + } + } + + clear() { + this.count = 0; + this.head.next = this.head as EmptyNode; + this.head.prev = this.head as EmptyNode; + } + + /** Returns the first item in the list, does not remove */ + first(): T | null { + // If the list is empty, value will be the head's null + return this.head.next.value; + } + + /** Returns the last item in the list, does not remove */ + last(): T | null { + // If the list is empty, value will be the head's null + return this.head.prev.value; + } +} + +/** + * A pool of Buffers which allow you to read them as if they were one + * @internal + */ +export class BufferPool { + private buffers: List; + private totalByteLength: number; + + constructor() { + this.buffers = new List(); + this.totalByteLength = 0; + } + + get length(): number { + return this.totalByteLength; + } + + /** Adds a buffer to the internal buffer pool list */ + append(buffer: Buffer): void { + this.buffers.push(buffer); + this.totalByteLength += buffer.length; + } + + /** + * If BufferPool contains 4 bytes or more construct an int32 from the leading bytes, + * otherwise return null. Size can be negative, caller should error check. + */ + getInt32(): number | null { + if (this.totalByteLength < 4) { + return null; + } + const firstBuffer = this.buffers.first(); + if (firstBuffer != null && firstBuffer.byteLength >= 4) { + return firstBuffer.readInt32LE(0); + } + + // Unlikely case: an int32 is split across buffers. + // Use read and put the returned buffer back on top + const top4Bytes = this.read(4); + const value = top4Bytes.readInt32LE(0); + + // Put it back. + this.totalByteLength += 4; + this.buffers.unshift(top4Bytes); + + return value; + } + + /** Reads the requested number of bytes, optionally consuming them */ + read(size: number): Buffer { + if (typeof size !== 'number' || size < 0) { + throw new MongoInvalidArgumentError('Argument "size" must be a non-negative number'); + } + + // oversized request returns empty buffer + if (size > this.totalByteLength) { + return Buffer.alloc(0); + } + + // We know we have enough, we just don't know how it is spread across chunks + // TODO(NODE-4732): alloc API should change based on raw option + const result = Buffer.allocUnsafe(size); + + for (let bytesRead = 0; bytesRead < size; ) { + const buffer = this.buffers.shift(); + if (buffer == null) { + break; + } + const bytesRemaining = size - bytesRead; + const bytesReadable = Math.min(bytesRemaining, buffer.byteLength); + const bytes = buffer.subarray(0, bytesReadable); + + result.set(bytes, bytesRead); + + bytesRead += bytesReadable; + this.totalByteLength -= bytesReadable; + if (bytesReadable < buffer.byteLength) { + this.buffers.unshift(buffer.subarray(bytesReadable)); + } + } + + return result; + } +} + +/** @public */ +export class HostAddress { + host: string | undefined = undefined; + port: number | undefined = undefined; + socketPath: string | undefined = undefined; + isIPv6 = false; + + constructor(hostString: string) { + const escapedHost = hostString.split(' ').join('%20'); // escape spaces, for socket path hosts + + if (escapedHost.endsWith('.sock')) { + // heuristically determine if we're working with a domain socket + this.socketPath = decodeURIComponent(escapedHost); + return; + } + + const urlString = `iLoveJS://${escapedHost}`; + let url; + try { + url = new URL(urlString); + } catch (urlError) { + const runtimeError = new MongoRuntimeError(`Unable to parse ${escapedHost} with URL`); + runtimeError.cause = urlError; + throw runtimeError; + } + + const hostname = url.hostname; + const port = url.port; + + let normalized = decodeURIComponent(hostname).toLowerCase(); + if (normalized.startsWith('[') && normalized.endsWith(']')) { + this.isIPv6 = true; + normalized = normalized.substring(1, hostname.length - 1); + } + + this.host = normalized.toLowerCase(); + + if (typeof port === 'number') { + this.port = port; + } else if (typeof port === 'string' && port !== '') { + this.port = Number.parseInt(port, 10); + } else { + this.port = 27017; + } + + if (this.port === 0) { + throw new MongoParseError('Invalid port (zero) with hostname'); + } + Object.freeze(this); + } + + [Symbol.for('nodejs.util.inspect.custom')](): string { + return this.inspect(); + } + + inspect(): string { + return `new HostAddress('${this.toString()}')`; + } + + toString(): string { + if (typeof this.host === 'string') { + if (this.isIPv6) { + return `[${this.host}]:${this.port}`; + } + return `${this.host}:${this.port}`; + } + return `${this.socketPath}`; + } + + static fromString(this: void, s: string): HostAddress { + return new HostAddress(s); + } + + static fromHostPort(host: string, port: number): HostAddress { + if (host.includes(':')) { + host = `[${host}]`; // IPv6 address + } + return HostAddress.fromString(`${host}:${port}`); + } + + static fromSrvRecord({ name, port }: SrvRecord): HostAddress { + return HostAddress.fromHostPort(name, port); + } + + toHostPort(): { host: string; port: number } { + if (this.socketPath) { + return { host: this.socketPath, port: 0 }; + } + + const host = this.host ?? ''; + const port = this.port ?? 0; + return { host, port }; + } +} + +export const DEFAULT_PK_FACTORY = { + // We prefer not to rely on ObjectId having a createPk method + createPk(): ObjectId { + return new ObjectId(); + } +}; + +/** + * When the driver used emitWarning the code will be equal to this. + * @public + * + * @example + * ```ts + * process.on('warning', (warning) => { + * if (warning.code === MONGODB_WARNING_CODE) console.error('Ah an important warning! :)') + * }) + * ``` + */ +export const MONGODB_WARNING_CODE = 'MONGODB DRIVER' as const; + +/** @internal */ +export function emitWarning(message: string): void { + return process.emitWarning(message, { code: MONGODB_WARNING_CODE } as any); +} + +const emittedWarnings = new Set(); +/** + * Will emit a warning once for the duration of the application. + * Uses the message to identify if it has already been emitted + * so using string interpolation can cause multiple emits + * @internal + */ +export function emitWarningOnce(message: string): void { + if (!emittedWarnings.has(message)) { + emittedWarnings.add(message); + return emitWarning(message); + } +} + +/** + * Takes a JS object and joins the values into a string separated by ', ' + */ +export function enumToString(en: Record): string { + return Object.values(en).join(', '); +} + +/** + * Determine if a server supports retryable writes. + * + * @internal + */ +export function supportsRetryableWrites(server?: Server): boolean { + if (!server) { + return false; + } + + if (server.loadBalanced) { + // Loadbalanced topologies will always support retry writes + return true; + } + + if (server.description.logicalSessionTimeoutMinutes != null) { + // that supports sessions + if (server.description.type !== ServerType.Standalone) { + // and that is not a standalone + return true; + } + } + + return false; +} + +/** + * Fisher–Yates Shuffle + * + * Reference: https://bost.ocks.org/mike/shuffle/ + * @param sequence - items to be shuffled + * @param limit - Defaults to `0`. If nonzero shuffle will slice the randomized array e.g, `.slice(0, limit)` otherwise will return the entire randomized array. + */ +export function shuffle(sequence: Iterable, limit = 0): Array { + const items = Array.from(sequence); // shallow copy in order to never shuffle the input + + if (limit > items.length) { + throw new MongoRuntimeError('Limit must be less than the number of items'); + } + + let remainingItemsToShuffle = items.length; + const lowerBound = limit % items.length === 0 ? 1 : items.length - limit; + while (remainingItemsToShuffle > lowerBound) { + // Pick a remaining element + const randomIndex = Math.floor(Math.random() * remainingItemsToShuffle); + remainingItemsToShuffle -= 1; + + // And swap it with the current element + const swapHold = items[remainingItemsToShuffle]; + items[remainingItemsToShuffle] = items[randomIndex]; + items[randomIndex] = swapHold; + } + + return limit % items.length === 0 ? items : items.slice(lowerBound); +} + +// TODO(NODE-4936): read concern eligibility for commands should be codified in command construction +// @see https://github.com/mongodb/specifications/blob/master/source/read-write-concern/read-write-concern.rst#read-concern +export function commandSupportsReadConcern(command: Document): boolean { + if (command.aggregate || command.count || command.distinct || command.find || command.geoNear) { + return true; + } + + return false; +} + +/** + * Compare objectIds. `null` is always less + * - `+1 = oid1 is greater than oid2` + * - `-1 = oid1 is less than oid2` + * - `+0 = oid1 is equal oid2` + */ +export function compareObjectId(oid1?: ObjectId | null, oid2?: ObjectId | null): 0 | 1 | -1 { + if (oid1 == null && oid2 == null) { + return 0; + } + + if (oid1 == null) { + return -1; + } + + if (oid2 == null) { + return 1; + } + + return ByteUtils.compare(oid1.id, oid2.id); +} + +export function parseInteger(value: unknown): number | null { + if (typeof value === 'number') return Math.trunc(value); + const parsedValue = Number.parseInt(String(value), 10); + + return Number.isNaN(parsedValue) ? null : parsedValue; +} + +export function parseUnsignedInteger(value: unknown): number | null { + const parsedInt = parseInteger(value); + + return parsedInt != null && parsedInt >= 0 ? parsedInt : null; +} + +/** + * Determines whether a provided address matches the provided parent domain. + * + * If a DNS server were to become compromised SRV records would still need to + * advertise addresses that are under the same domain as the srvHost. + * + * @param address - The address to check against a domain + * @param srvHost - The domain to check the provided address against + * @returns Whether the provided address matches the parent domain + */ +export function matchesParentDomain(address: string, srvHost: string): boolean { + // Remove trailing dot if exists on either the resolved address or the srv hostname + const normalizedAddress = address.endsWith('.') ? address.slice(0, address.length - 1) : address; + const normalizedSrvHost = srvHost.endsWith('.') ? srvHost.slice(0, srvHost.length - 1) : srvHost; + + const allCharacterBeforeFirstDot = /^.*?\./; + // Remove all characters before first dot + // Add leading dot back to string so + // an srvHostDomain = '.trusted.site' + // will not satisfy an addressDomain that endsWith '.fake-trusted.site' + const addressDomain = `.${normalizedAddress.replace(allCharacterBeforeFirstDot, '')}`; + const srvHostDomain = `.${normalizedSrvHost.replace(allCharacterBeforeFirstDot, '')}`; + + return addressDomain.endsWith(srvHostDomain); +} + +interface RequestOptions { + json?: boolean; + method?: string; + timeout?: number; + headers?: http.OutgoingHttpHeaders; +} + +export async function request(uri: string): Promise>; +export async function request( + uri: string, + options?: { json?: true } & RequestOptions +): Promise>; +export async function request( + uri: string, + options?: { json: false } & RequestOptions +): Promise; +export async function request( + uri: string, + options: RequestOptions = {} +): Promise> { + return await new Promise>((resolve, reject) => { + const requestOptions = { + method: 'GET', + timeout: 10000, + json: true, + ...url.parse(uri), + ...options + }; + + const req = http.request(requestOptions, res => { + res.setEncoding('utf8'); + + let data = ''; + res.on('data', d => { + data += d; + }); + + res.once('end', () => { + if (options.json === false) { + resolve(data); + return; + } + + try { + const parsed = JSON.parse(data); + resolve(parsed); + } catch { + // TODO(NODE-3483) + reject(new MongoRuntimeError(`Invalid JSON response: "${data}"`)); + } + }); + }); + + req.once('timeout', () => + req.destroy( + new MongoNetworkTimeoutError( + `Network request to ${uri} timed out after ${options.timeout} ms` + ) + ) + ); + req.once('error', error => reject(error)); + req.end(); + }); +} + +/** @internal */ +export const DOCUMENT_DB_CHECK = /(\.docdb\.amazonaws\.com$)|(\.docdb-elastic\.amazonaws\.com$)/; +/** @internal */ +export const COSMOS_DB_CHECK = /\.cosmos\.azure\.com$/; + +/** @internal */ +export const DOCUMENT_DB_MSG = + 'You appear to be connected to a DocumentDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/documentdb'; +/** @internal */ +export const COSMOS_DB_MSG = + 'You appear to be connected to a CosmosDB cluster. For more information regarding feature compatibility and support please visit https://www.mongodb.com/supportability/cosmosdb'; + +/** @internal */ +export function isHostMatch(match: RegExp, host?: string): boolean { + return host && match.test(host.toLowerCase()) ? true : false; +} + +export function promiseWithResolvers(): { + promise: Promise; + resolve: (value: T) => void; + reject: (error: Error) => void; +} { + let resolve!: (value: T) => void; + let reject!: (error: Error) => void; + const promise = new Promise(function withResolversExecutor(promiseResolve, promiseReject) { + resolve = promiseResolve; + reject = promiseReject; + }); + return { promise, resolve, reject } as const; +} + +/** + * A noop function intended for use in preventing unhandled rejections. + * + * @example + * ```js + * const promise = myAsyncTask(); + * // eslint-disable-next-line github/no-then + * promise.then(undefined, squashError); + * ``` + */ +export function squashError(_error: unknown) { + return; +} + +export const randomBytes = promisify(crypto.randomBytes); + +/** + * Replicates the events.once helper. + * + * Removes unused signal logic and It **only** supports 0 or 1 argument events. + * + * @param ee - An event emitter that may emit `ev` + * @param name - An event name to wait for + */ +export async function once(ee: EventEmitter, name: string): Promise { + const { promise, resolve, reject } = promiseWithResolvers(); + const onEvent = (data: T) => resolve(data); + const onError = (error: Error) => reject(error); + + ee.once(name, onEvent).once('error', onError); + try { + const res = await promise; + ee.off('error', onError); + return res; + } catch (error) { + ee.off(name, onEvent); + throw error; + } +} + +export function maybeAddIdToDocuments( + coll: Collection, + docs: Document[], + options: { forceServerObjectId?: boolean } +): Document[]; +export function maybeAddIdToDocuments( + coll: Collection, + docs: Document, + options: { forceServerObjectId?: boolean } +): Document; +export function maybeAddIdToDocuments( + coll: Collection, + docOrDocs: Document[] | Document, + options: { forceServerObjectId?: boolean } +): Document[] | Document { + const forceServerObjectId = + typeof options.forceServerObjectId === 'boolean' + ? options.forceServerObjectId + : coll.s.db.options?.forceServerObjectId; + + // no need to modify the docs if server sets the ObjectId + if (forceServerObjectId === true) { + return docOrDocs; + } + + const transform = (doc: Document): Document => { + if (doc._id == null) { + doc._id = coll.s.pkFactory.createPk(); + } + + return doc; + }; + return Array.isArray(docOrDocs) ? docOrDocs.map(transform) : transform(docOrDocs); +} + +export async function fileIsAccessible(fileName: string, mode?: number) { + try { + await fs.access(fileName, mode); + return true; + } catch { + return false; + } +} + +export function noop() { + return; +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/src/write_concern.ts b/week-3/04-course-app-hard/node_modules/mongodb/src/write_concern.ts new file mode 100644 index 000000000..e3a3f5510 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/src/write_concern.ts @@ -0,0 +1,161 @@ +import { type Document } from './bson'; + +/** @public */ +export type W = number | 'majority'; + +/** @public */ +export interface WriteConcernOptions { + /** Write Concern as an object */ + writeConcern?: WriteConcern | WriteConcernSettings; +} + +/** @public */ +export interface WriteConcernSettings { + /** The write concern */ + w?: W; + /** The write concern timeout */ + wtimeoutMS?: number; + /** The journal write concern */ + journal?: boolean; + + // legacy options + /** + * The journal write concern. + * @deprecated Will be removed in the next major version. Please use the journal option. + */ + j?: boolean; + /** + * The write concern timeout. + * @deprecated Will be removed in the next major version. Please use the wtimeoutMS option. + */ + wtimeout?: number; + /** + * The file sync write concern. + * @deprecated Will be removed in the next major version. Please use the journal option. + */ + fsync?: boolean | 1; +} + +export const WRITE_CONCERN_KEYS = ['w', 'wtimeout', 'j', 'journal', 'fsync']; + +/** The write concern options that decorate the server command. */ +interface CommandWriteConcernOptions { + /** The write concern */ + w?: W; + /** The journal write concern. */ + j?: boolean; + /** The write concern timeout. */ + wtimeout?: number; +} + +/** + * A MongoDB WriteConcern, which describes the level of acknowledgement + * requested from MongoDB for write operations. + * @public + * + * @see https://www.mongodb.com/docs/manual/reference/write-concern/ + */ +export class WriteConcern { + /** Request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags. */ + readonly w?: W; + /** Request acknowledgment that the write operation has been written to the on-disk journal */ + readonly journal?: boolean; + /** Specify a time limit to prevent write operations from blocking indefinitely */ + readonly wtimeoutMS?: number; + /** + * Specify a time limit to prevent write operations from blocking indefinitely. + * @deprecated Will be removed in the next major version. Please use wtimeoutMS. + */ + wtimeout?: number; + /** + * Request acknowledgment that the write operation has been written to the on-disk journal. + * @deprecated Will be removed in the next major version. Please use journal. + */ + j?: boolean; + /** + * Equivalent to the j option. + * @deprecated Will be removed in the next major version. Please use journal. + */ + fsync?: boolean | 1; + + /** + * Constructs a WriteConcern from the write concern properties. + * @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags. + * @param wtimeoutMS - specify a time limit to prevent write operations from blocking indefinitely + * @param journal - request acknowledgment that the write operation has been written to the on-disk journal + * @param fsync - equivalent to the j option. Is deprecated and will be removed in the next major version. + */ + constructor(w?: W, wtimeoutMS?: number, journal?: boolean, fsync?: boolean | 1) { + if (w != null) { + if (!Number.isNaN(Number(w))) { + this.w = Number(w); + } else { + this.w = w; + } + } + if (wtimeoutMS != null) { + this.wtimeoutMS = this.wtimeout = wtimeoutMS; + } + if (journal != null) { + this.journal = this.j = journal; + } + if (fsync != null) { + this.journal = this.j = fsync ? true : false; + } + } + + /** + * Apply a write concern to a command document. Will modify and return the command. + */ + static apply(command: Document, writeConcern: WriteConcern): Document { + const wc: CommandWriteConcernOptions = {}; + // The write concern document sent to the server has w/wtimeout/j fields. + if (writeConcern.w != null) wc.w = writeConcern.w; + if (writeConcern.wtimeoutMS != null) wc.wtimeout = writeConcern.wtimeoutMS; + if (writeConcern.journal != null) wc.j = writeConcern.j; + command.writeConcern = wc; + return command; + } + + /** Construct a WriteConcern given an options object. */ + static fromOptions( + options?: WriteConcernOptions | WriteConcern | W, + inherit?: WriteConcernOptions | WriteConcern + ): WriteConcern | undefined { + if (options == null) return undefined; + inherit = inherit ?? {}; + let opts: WriteConcernSettings | WriteConcern | undefined; + if (typeof options === 'string' || typeof options === 'number') { + opts = { w: options }; + } else if (options instanceof WriteConcern) { + opts = options; + } else { + opts = options.writeConcern; + } + const parentOpts: WriteConcern | WriteConcernSettings | undefined = + inherit instanceof WriteConcern ? inherit : inherit.writeConcern; + + const { + w = undefined, + wtimeout = undefined, + j = undefined, + fsync = undefined, + journal = undefined, + wtimeoutMS = undefined + } = { + ...parentOpts, + ...opts + }; + if ( + w != null || + wtimeout != null || + wtimeoutMS != null || + j != null || + journal != null || + fsync != null + ) { + return new WriteConcern(w, wtimeout ?? wtimeoutMS, j ?? journal, fsync); + } + return undefined; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongodb/tsconfig.json b/week-3/04-course-app-hard/node_modules/mongodb/tsconfig.json new file mode 100644 index 000000000..0d08d1299 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongodb/tsconfig.json @@ -0,0 +1,46 @@ +{ + "compilerOptions": { + "allowJs": true, + "checkJs": false, + "strict": true, + "alwaysStrict": true, + "target": "ES2021", + "module": "commonJS", + "moduleResolution": "node", + "skipLibCheck": true, + "lib": [ + "es2021", + "ES2022.Error" + ], + // We don't make use of tslib helpers, all syntax used is supported by target engine + "importHelpers": false, + "noEmitHelpers": true, + // Never emit error filled code + "noEmitOnError": true, + "outDir": "lib", + // We want the sourcemaps in a separate file + "inlineSourceMap": false, + "sourceMap": true, + // API-Extractor uses declaration maps to report problems in source, no need to distribute + "declaration": true, + "declarationMap": true, + // we include sources in the release + "inlineSources": false, + // Prevents web types from being suggested by vscode. + "types": [ + "node" + ], + "forceConsistentCasingInFileNames": true, + "noImplicitOverride": true, + "noImplicitReturns": true, + // TODO(NODE-3659): Enable useUnknownInCatchVariables and add type assertions or remove unnecessary catch blocks + "useUnknownInCatchVariables": false + }, + "ts-node": { + "transpileOnly": true, + "compiler": "typescript-cached-transpile" + }, + "include": [ + "src/**/*" + ] +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/LICENSE.md b/week-3/04-course-app-hard/node_modules/mongoose/LICENSE.md new file mode 100644 index 000000000..54b4a4c6c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/LICENSE.md @@ -0,0 +1,22 @@ +# MIT License + +Copyright (c) 2010-2013 LearnBoost +Copyright (c) 2013-2021 Automattic + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/mongoose/README.md b/week-3/04-course-app-hard/node_modules/mongoose/README.md new file mode 100644 index 000000000..b8f0836bc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/README.md @@ -0,0 +1,375 @@ +# Mongoose + +Mongoose is a [MongoDB](https://www.mongodb.org/) object modeling tool designed to work in an asynchronous environment. Mongoose supports [Node.js](https://nodejs.org/en/) and [Deno](https://deno.land/) (alpha). + +[![Build Status](https://github.com/Automattic/mongoose/workflows/Test/badge.svg)](https://github.com/Automattic/mongoose) +[![NPM version](https://badge.fury.io/js/mongoose.svg)](http://badge.fury.io/js/mongoose) +[![Deno version](https://deno.land/badge/mongoose/version)](https://deno.land/x/mongoose) +[![Deno popularity](https://deno.land/badge/mongoose/popularity)](https://deno.land/x/mongoose) + +[![npm](https://nodei.co/npm/mongoose.png)](https://www.npmjs.com/package/mongoose) + +## Documentation + +The official documentation website is [mongoosejs.com](http://mongoosejs.com/). + +Mongoose 8.0.0 was released on October 31, 2023. You can find more details on [backwards breaking changes in 8.0.0 on our docs site](https://mongoosejs.com/docs/migrating_to_8.html). + +## Support + +* [Stack Overflow](http://stackoverflow.com/questions/tagged/mongoose) +* [Bug Reports](https://github.com/Automattic/mongoose/issues/) +* [Mongoose Slack Channel](http://slack.mongoosejs.io/) +* [Help Forum](http://groups.google.com/group/mongoose-orm) +* [MongoDB Support](https://www.mongodb.com/docs/manual/support/) + +## Plugins + +Check out the [plugins search site](http://plugins.mongoosejs.io/) to see hundreds of related modules from the community. Next, learn how to write your own plugin from the [docs](http://mongoosejs.com/docs/plugins.html) or [this blog post](http://thecodebarbarian.com/2015/03/06/guide-to-mongoose-plugins). + +## Contributors + +Pull requests are always welcome! Please base pull requests against the `master` +branch and follow the [contributing guide](https://github.com/Automattic/mongoose/blob/master/CONTRIBUTING.md). + +If your pull requests makes documentation changes, please do **not** +modify any `.html` files. The `.html` files are compiled code, so please make +your changes in `docs/*.pug`, `lib/*.js`, or `test/docs/*.js`. + +View all 400+ [contributors](https://github.com/Automattic/mongoose/graphs/contributors). + +## Installation + +First install [Node.js](http://nodejs.org/) and [MongoDB](https://www.mongodb.org/downloads). Then: + +```sh +npm install mongoose +``` + +Mongoose 6.8.0 also includes alpha support for [Deno](https://deno.land/). + +## Importing + +```javascript +// Using Node.js `require()` +const mongoose = require('mongoose'); + +// Using ES6 imports +import mongoose from 'mongoose'; +``` + +Or, using [Deno's `createRequire()` for CommonJS support](https://deno.land/std@0.113.0/node/README.md?source=#commonjs-modules-loading) as follows. + +```javascript +import { createRequire } from 'https://deno.land/std@0.177.0/node/module.ts'; +const require = createRequire(import.meta.url); + +const mongoose = require('mongoose'); + +mongoose.connect('mongodb://127.0.0.1:27017/test') + .then(() => console.log('Connected!')); +``` + +You can then run the above script using the following. + +```sh +deno run --allow-net --allow-read --allow-sys --allow-env mongoose-test.js +``` + +## Mongoose for Enterprise + +Available as part of the Tidelift Subscription + +The maintainers of mongoose and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-mongoose?utm_source=npm-mongoose&utm_medium=referral&utm_campaign=enterprise&utm_term=repo) + +## Overview + +### Connecting to MongoDB + +First, we need to define a connection. If your app uses only one database, you should use `mongoose.connect`. If you need to create additional connections, use `mongoose.createConnection`. + +Both `connect` and `createConnection` take a `mongodb://` URI, or the parameters `host, database, port, options`. + +```js +await mongoose.connect('mongodb://127.0.0.1/my_database'); +``` + +Once connected, the `open` event is fired on the `Connection` instance. If you're using `mongoose.connect`, the `Connection` is `mongoose.connection`. Otherwise, `mongoose.createConnection` return value is a `Connection`. + +**Note:** *If the local connection fails then try using 127.0.0.1 instead of localhost. Sometimes issues may arise when the local hostname has been changed.* + +**Important!** Mongoose buffers all the commands until it's connected to the database. This means that you don't have to wait until it connects to MongoDB in order to define models, run queries, etc. + +### Defining a Model + +Models are defined through the `Schema` interface. + +```js +const Schema = mongoose.Schema; +const ObjectId = Schema.ObjectId; + +const BlogPost = new Schema({ + author: ObjectId, + title: String, + body: String, + date: Date +}); +``` + +Aside from defining the structure of your documents and the types of data you're storing, a Schema handles the definition of: + +* [Validators](http://mongoosejs.com/docs/validation.html) (async and sync) +* [Defaults](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-default) +* [Getters](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-get) +* [Setters](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set) +* [Indexes](http://mongoosejs.com/docs/guide.html#indexes) +* [Middleware](http://mongoosejs.com/docs/middleware.html) +* [Methods](http://mongoosejs.com/docs/guide.html#methods) definition +* [Statics](http://mongoosejs.com/docs/guide.html#statics) definition +* [Plugins](http://mongoosejs.com/docs/plugins.html) +* [pseudo-JOINs](http://mongoosejs.com/docs/populate.html) + +The following example shows some of these features: + +```js +const Comment = new Schema({ + name: { type: String, default: 'hahaha' }, + age: { type: Number, min: 18, index: true }, + bio: { type: String, match: /[a-z]/ }, + date: { type: Date, default: Date.now }, + buff: Buffer +}); + +// a setter +Comment.path('name').set(function(v) { + return capitalize(v); +}); + +// middleware +Comment.pre('save', function(next) { + notify(this.get('email')); + next(); +}); +``` + +Take a look at the example in [`examples/schema/schema.js`](https://github.com/Automattic/mongoose/blob/master/examples/schema/schema.js) for an end-to-end example of a typical setup. + +### Accessing a Model + +Once we define a model through `mongoose.model('ModelName', mySchema)`, we can access it through the same function + +```js +const MyModel = mongoose.model('ModelName'); +``` + +Or just do it all at once + +```js +const MyModel = mongoose.model('ModelName', mySchema); +``` + +The first argument is the *singular* name of the collection your model is for. **Mongoose automatically looks for the *plural* version of your model name.** For example, if you use + +```js +const MyModel = mongoose.model('Ticket', mySchema); +``` + +Then `MyModel` will use the **tickets** collection, not the **ticket** collection. For more details read the [model docs](https://mongoosejs.com/docs/api/mongoose.html#mongoose_Mongoose-model). + +Once we have our model, we can then instantiate it, and save it: + +```js +const instance = new MyModel(); +instance.my.key = 'hello'; +await instance.save(); +``` + +Or we can find documents from the same collection + +```js +await MyModel.find({}); +``` + +You can also `findOne`, `findById`, `update`, etc. + +```js +const instance = await MyModel.findOne({ /* ... */ }); +console.log(instance.my.key); // 'hello' +``` + +For more details check out [the docs](http://mongoosejs.com/docs/queries.html). + +**Important!** If you opened a separate connection using `mongoose.createConnection()` but attempt to access the model through `mongoose.model('ModelName')` it will not work as expected since it is not hooked up to an active db connection. In this case access your model through the connection you created: + +```js +const conn = mongoose.createConnection('your connection string'); +const MyModel = conn.model('ModelName', schema); +const m = new MyModel(); +await m.save(); // works +``` + +vs + +```js +const conn = mongoose.createConnection('your connection string'); +const MyModel = mongoose.model('ModelName', schema); +const m = new MyModel(); +await m.save(); // does not work b/c the default connection object was never connected +``` + +### Embedded Documents + +In the first example snippet, we defined a key in the Schema that looks like: + +```txt +comments: [Comment] +``` + +Where `Comment` is a `Schema` we created. This means that creating embedded documents is as simple as: + +```js +// retrieve my model +const BlogPost = mongoose.model('BlogPost'); + +// create a blog post +const post = new BlogPost(); + +// create a comment +post.comments.push({ title: 'My comment' }); + +await post.save(); +``` + +The same goes for removing them: + +```js +const post = await BlogPost.findById(myId); +post.comments[0].deleteOne(); +await post.save(); +``` + +Embedded documents enjoy all the same features as your models. Defaults, validators, middleware. + +### Middleware + +See the [docs](http://mongoosejs.com/docs/middleware.html) page. + +#### Intercepting and mutating method arguments + +You can intercept method arguments via middleware. + +For example, this would allow you to broadcast changes about your Documents every time someone `set`s a path in your Document to a new value: + +```js +schema.pre('set', function(next, path, val, typel) { + // `this` is the current Document + this.emit('set', path, val); + + // Pass control to the next pre + next(); +}); +``` + +Moreover, you can mutate the incoming `method` arguments so that subsequent middleware see different values for those arguments. To do so, just pass the new values to `next`: + +```js +schema.pre(method, function firstPre(next, methodArg1, methodArg2) { + // Mutate methodArg1 + next('altered-' + methodArg1.toString(), methodArg2); +}); + +// pre declaration is chainable +schema.pre(method, function secondPre(next, methodArg1, methodArg2) { + console.log(methodArg1); + // => 'altered-originalValOfMethodArg1' + + console.log(methodArg2); + // => 'originalValOfMethodArg2' + + // Passing no arguments to `next` automatically passes along the current argument values + // i.e., the following `next()` is equivalent to `next(methodArg1, methodArg2)` + // and also equivalent to, with the example method arg + // values, `next('altered-originalValOfMethodArg1', 'originalValOfMethodArg2')` + next(); +}); +``` + +#### Schema gotcha + +`type`, when used in a schema has special meaning within Mongoose. If your schema requires using `type` as a nested property you must use object notation: + +```js +new Schema({ + broken: { type: Boolean }, + asset: { + name: String, + type: String // uh oh, it broke. asset will be interpreted as String + } +}); + +new Schema({ + works: { type: Boolean }, + asset: { + name: String, + type: { type: String } // works. asset is an object with a type property + } +}); +``` + +### Driver Access + +Mongoose is built on top of the [official MongoDB Node.js driver](https://github.com/mongodb/node-mongodb-native). Each mongoose model keeps a reference to a [native MongoDB driver collection](http://mongodb.github.io/node-mongodb-native/2.1/api/Collection.html). The collection object can be accessed using `YourModel.collection`. However, using the collection object directly bypasses all mongoose features, including hooks, validation, etc. The one +notable exception that `YourModel.collection` still buffers +commands. As such, `YourModel.collection.find()` will **not** +return a cursor. + +## API Docs + +Find the API docs [here](http://mongoosejs.com/docs/api/mongoose.html), generated using [dox](https://github.com/tj/dox) +and [acquit](https://github.com/vkarpov15/acquit). + +## Related Projects + +### MongoDB Runners + +* [run-rs](https://www.npmjs.com/package/run-rs) +* [mongodb-memory-server](https://www.npmjs.com/package/mongodb-memory-server) +* [mongodb-topology-manager](https://www.npmjs.com/package/mongodb-topology-manager) + +### Unofficial CLIs + +* [mongoosejs-cli](https://www.npmjs.com/package/mongoosejs-cli) + +### Data Seeding + +* [dookie](https://www.npmjs.com/package/dookie) +* [seedgoose](https://www.npmjs.com/package/seedgoose) +* [mongoose-data-seed](https://www.npmjs.com/package/mongoose-data-seed) + +### Express Session Stores + +* [connect-mongodb-session](https://www.npmjs.com/package/connect-mongodb-session) +* [connect-mongo](https://www.npmjs.com/package/connect-mongo) + +## License + +Copyright (c) 2010 LearnBoost <dev@learnboost.com> + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/mongoose/SECURITY.md b/week-3/04-course-app-hard/node_modules/mongoose/SECURITY.md new file mode 100644 index 000000000..41b89d834 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/SECURITY.md @@ -0,0 +1 @@ +Please follow the instructions on [Tidelift's security page](https://tidelift.com/docs/security) to report a security issue. diff --git a/week-3/04-course-app-hard/node_modules/mongoose/browser.js b/week-3/04-course-app-hard/node_modules/mongoose/browser.js new file mode 100644 index 000000000..4cf822804 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/browser.js @@ -0,0 +1,8 @@ +/** + * Export lib/mongoose + * + */ + +'use strict'; + +module.exports = require('./lib/browser'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/dist/browser.umd.js b/week-3/04-course-app-hard/node_modules/mongoose/dist/browser.umd.js new file mode 100644 index 000000000..f905f12f7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/dist/browser.umd.js @@ -0,0 +1,2 @@ +/*! 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At=(u+(n=n+Math.imul(d,dt)|0)|0)+((8191&(i=(i=i+Math.imul(d,yt)|0)+Math.imul(y,dt)|0))<<13)|0;u=((o=o+Math.imul(y,yt)|0)+(i>>>13)|0)+(At>>>26)|0,At&=67108863,n=Math.imul(L,W),i=(i=Math.imul(L,J))+Math.imul(U,W)|0,o=Math.imul(U,J),n=n+Math.imul(R,Y)|0,i=(i=i+Math.imul(R,Q)|0)+Math.imul(N,Y)|0,o=o+Math.imul(N,Q)|0,n=n+Math.imul(I,Z)|0,i=(i=i+Math.imul(I,tt)|0)+Math.imul(B,Z)|0,o=o+Math.imul(B,tt)|0,n=n+Math.imul(P,rt)|0,i=(i=i+Math.imul(P,nt)|0)+Math.imul(k,rt)|0,o=o+Math.imul(k,nt)|0,n=n+Math.imul(A,ot)|0,i=(i=i+Math.imul(A,at)|0)+Math.imul(E,ot)|0,o=o+Math.imul(E,at)|0,n=n+Math.imul(O,ct)|0,i=(i=i+Math.imul(O,ut)|0)+Math.imul(j,ct)|0,o=o+Math.imul(j,ut)|0,n=n+Math.imul(_,lt)|0,i=(i=i+Math.imul(_,ht)|0)+Math.imul(w,lt)|0,o=o+Math.imul(w,ht)|0;var Et=(u+(n=n+Math.imul(m,dt)|0)|0)+((8191&(i=(i=i+Math.imul(m,yt)|0)+Math.imul(v,dt)|0))<<13)|0;u=((o=o+Math.imul(v,yt)|0)+(i>>>13)|0)+(Et>>>26)|0,Et&=67108863,n=Math.imul(L,Y),i=(i=Math.imul(L,Q))+Math.imul(U,Y)|0,o=Math.imul(U,Q),n=n+Math.imul(R,Z)|0,i=(i=i+Math.imul(R,tt)|0)+Math.imul(N,Z)|0,o=o+Math.imul(N,tt)|0,n=n+Math.imul(I,rt)|0,i=(i=i+Math.imul(I,nt)|0)+Math.imul(B,rt)|0,o=o+Math.imul(B,nt)|0,n=n+Math.imul(P,ot)|0,i=(i=i+Math.imul(P,at)|0)+Math.imul(k,ot)|0,o=o+Math.imul(k,at)|0,n=n+Math.imul(A,ct)|0,i=(i=i+Math.imul(A,ut)|0)+Math.imul(E,ct)|0,o=o+Math.imul(E,ut)|0,n=n+Math.imul(O,lt)|0,i=(i=i+Math.imul(O,ht)|0)+Math.imul(j,lt)|0,o=o+Math.imul(j,ht)|0;var xt=(u+(n=n+Math.imul(_,dt)|0)|0)+((8191&(i=(i=i+Math.imul(_,yt)|0)+Math.imul(w,dt)|0))<<13)|0;u=((o=o+Math.imul(w,yt)|0)+(i>>>13)|0)+(xt>>>26)|0,xt&=67108863,n=Math.imul(L,Z),i=(i=Math.imul(L,tt))+Math.imul(U,Z)|0,o=Math.imul(U,tt),n=n+Math.imul(R,rt)|0,i=(i=i+Math.imul(R,nt)|0)+Math.imul(N,rt)|0,o=o+Math.imul(N,nt)|0,n=n+Math.imul(I,ot)|0,i=(i=i+Math.imul(I,at)|0)+Math.imul(B,ot)|0,o=o+Math.imul(B,at)|0,n=n+Math.imul(P,ct)|0,i=(i=i+Math.imul(P,ut)|0)+Math.imul(k,ct)|0,o=o+Math.imul(k,ut)|0,n=n+Math.imul(A,lt)|0,i=(i=i+Math.imul(A,ht)|0)+Math.imul(E,lt)|0,o=o+Math.imul(E,ht)|0;var Pt=(u+(n=n+Math.imul(O,dt)|0)|0)+((8191&(i=(i=i+Math.imul(O,yt)|0)+Math.imul(j,dt)|0))<<13)|0;u=((o=o+Math.imul(j,yt)|0)+(i>>>13)|0)+(Pt>>>26)|0,Pt&=67108863,n=Math.imul(L,rt),i=(i=Math.imul(L,nt))+Math.imul(U,rt)|0,o=Math.imul(U,nt),n=n+Math.imul(R,ot)|0,i=(i=i+Math.imul(R,at)|0)+Math.imul(N,ot)|0,o=o+Math.imul(N,at)|0,n=n+Math.imul(I,ct)|0,i=(i=i+Math.imul(I,ut)|0)+Math.imul(B,ct)|0,o=o+Math.imul(B,ut)|0,n=n+Math.imul(P,lt)|0,i=(i=i+Math.imul(P,ht)|0)+Math.imul(k,lt)|0,o=o+Math.imul(k,ht)|0;var kt=(u+(n=n+Math.imul(A,dt)|0)|0)+((8191&(i=(i=i+Math.imul(A,yt)|0)+Math.imul(E,dt)|0))<<13)|0;u=((o=o+Math.imul(E,yt)|0)+(i>>>13)|0)+(kt>>>26)|0,kt&=67108863,n=Math.imul(L,ot),i=(i=Math.imul(L,at))+Math.imul(U,ot)|0,o=Math.imul(U,at),n=n+Math.imul(R,ct)|0,i=(i=i+Math.imul(R,ut)|0)+Math.imul(N,ct)|0,o=o+Math.imul(N,ut)|0,n=n+Math.imul(I,lt)|0,i=(i=i+Math.imul(I,ht)|0)+Math.imul(B,lt)|0,o=o+Math.imul(B,ht)|0;var Mt=(u+(n=n+Math.imul(P,dt)|0)|0)+((8191&(i=(i=i+Math.imul(P,yt)|0)+Math.imul(k,dt)|0))<<13)|0;u=((o=o+Math.imul(k,yt)|0)+(i>>>13)|0)+(Mt>>>26)|0,Mt&=67108863,n=Math.imul(L,ct),i=(i=Math.imul(L,ut))+Math.imul(U,ct)|0,o=Math.imul(U,ut),n=n+Math.imul(R,lt)|0,i=(i=i+Math.imul(R,ht)|0)+Math.imul(N,lt)|0,o=o+Math.imul(N,ht)|0;var It=(u+(n=n+Math.imul(I,dt)|0)|0)+((8191&(i=(i=i+Math.imul(I,yt)|0)+Math.imul(B,dt)|0))<<13)|0;u=((o=o+Math.imul(B,yt)|0)+(i>>>13)|0)+(It>>>26)|0,It&=67108863,n=Math.imul(L,lt),i=(i=Math.imul(L,ht))+Math.imul(U,lt)|0,o=Math.imul(U,ht);var Bt=(u+(n=n+Math.imul(R,dt)|0)|0)+((8191&(i=(i=i+Math.imul(R,yt)|0)+Math.imul(N,dt)|0))<<13)|0;u=((o=o+Math.imul(N,yt)|0)+(i>>>13)|0)+(Bt>>>26)|0,Bt&=67108863;var Tt=(u+(n=Math.imul(L,dt))|0)+((8191&(i=(i=Math.imul(L,yt))+Math.imul(U,dt)|0))<<13)|0;return u=((o=Math.imul(U,yt))+(i>>>13)|0)+(Tt>>>26)|0,Tt&=67108863,c[0]=bt,c[1]=mt,c[2]=vt,c[3]=gt,c[4]=_t,c[5]=wt,c[6]=St,c[7]=Ot,c[8]=jt,c[9]=$t,c[10]=At,c[11]=Et,c[12]=xt,c[13]=Pt,c[14]=kt,c[15]=Mt,c[16]=It,c[17]=Bt,c[18]=Tt,0!==u&&(c[19]=u,r.length++),r};function v(t,e,r){r.negative=e.negative^t.negative,r.length=t.length+e.length;for(var n=0,i=0,o=0;o>>26)|0)>>>26,a&=67108863}r.words[o]=s,n=a,a=i}return 0!==n?r.words[o]=n:r.length--,r._strip()}function g(t,e,r){return v(t,e,r)}function _(t,e){this.x=t,this.y=e}Math.imul||(m=b),a.prototype.mulTo=function(t,e){var r=this.length+t.length;return 10===this.length&&10===t.length?m(this,t,e):r<63?b(this,t,e):r<1024?v(this,t,e):g(this,t,e)},_.prototype.makeRBT=function(t){for(var e=new Array(t),r=a.prototype._countBits(t)-1,n=0;n>=1;return n},_.prototype.permute=function(t,e,r,n,i,o){for(var a=0;a>>=1)i++;return 1<>>=13,r[2*a+1]=8191&o,o>>>=13;for(a=2*e;a>=26,r+=o/67108864|0,r+=a>>>26,this.words[n]=67108863&a}return 0!==r&&(this.words[n]=r,this.length++),e?this.ineg():this},a.prototype.muln=function(t){return this.clone().imuln(t)},a.prototype.sqr=function(){return this.mul(this)},a.prototype.isqr=function(){return this.imul(this.clone())},a.prototype.pow=function(t){var e=function(t){for(var e=new Array(t.bitLength()),r=0;r>>i&1}return e}(t);if(0===e.length)return new a(1);for(var r=this,n=0;n=0);var e,r=t%26,n=(t-r)/26,o=67108863>>>26-r<<26-r;if(0!==r){var a=0;for(e=0;e>>26-r}a&&(this.words[e]=a,this.length++)}if(0!==n){for(e=this.length-1;e>=0;e--)this.words[e+n]=this.words[e];for(e=0;e=0),n=e?(e-e%26)/26:0;var o=t%26,a=Math.min((t-o)/26,this.length),s=67108863^67108863>>>o<a)for(this.length-=a,u=0;u=0&&(0!==f||u>=n);u--){var l=0|this.words[u];this.words[u]=f<<26-o|l>>>o,f=l&s}return c&&0!==f&&(c.words[c.length++]=f),0===this.length&&(this.words[0]=0,this.length=1),this._strip()},a.prototype.ishrn=function(t,e,r){return i(0===this.negative),this.iushrn(t,e,r)},a.prototype.shln=function(t){return this.clone().ishln(t)},a.prototype.ushln=function(t){return this.clone().iushln(t)},a.prototype.shrn=function(t){return this.clone().ishrn(t)},a.prototype.ushrn=function(t){return this.clone().iushrn(t)},a.prototype.testn=function(t){i("number"==typeof t&&t>=0);var e=t%26,r=(t-e)/26,n=1<=0);var e=t%26,r=(t-e)/26;if(i(0===this.negative,"imaskn works only with positive numbers"),this.length<=r)return this;if(0!==e&&r++,this.length=Math.min(r,this.length),0!==e){var n=67108863^67108863>>>e<=67108864;e++)this.words[e]-=67108864,e===this.length-1?this.words[e+1]=1:this.words[e+1]++;return this.length=Math.max(this.length,e+1),this},a.prototype.isubn=function(t){if(i("number"==typeof t),i(t<67108864),t<0)return this.iaddn(-t);if(0!==this.negative)return this.negative=0,this.iaddn(t),this.negative=1,this;if(this.words[0]-=t,1===this.length&&this.words[0]<0)this.words[0]=-this.words[0],this.negative=1;else for(var e=0;e>26)-(c/67108864|0),this.words[n+r]=67108863&o}for(;n>26,this.words[n+r]=67108863&o;if(0===s)return this._strip();for(i(-1===s),s=0,n=0;n>26,this.words[n]=67108863&o;return this.negative=1,this._strip()},a.prototype._wordDiv=function(t,e){var r=(this.length,t.length),n=this.clone(),i=t,o=0|i.words[i.length-1];0!=(r=26-this._countBits(o))&&(i=i.ushln(r),n.iushln(r),o=0|i.words[i.length-1]);var s,c=n.length-i.length;if("mod"!==e){(s=new a(null)).length=c+1,s.words=new Array(s.length);for(var u=0;u=0;l--){var h=67108864*(0|n.words[i.length+l])+(0|n.words[i.length+l-1]);for(h=Math.min(h/o|0,67108863),n._ishlnsubmul(i,h,l);0!==n.negative;)h--,n.negative=0,n._ishlnsubmul(i,1,l),n.isZero()||(n.negative^=1);s&&(s.words[l]=h)}return s&&s._strip(),n._strip(),"div"!==e&&0!==r&&n.iushrn(r),{div:s||null,mod:n}},a.prototype.divmod=function(t,e,r){return i(!t.isZero()),this.isZero()?{div:new a(0),mod:new a(0)}:0!==this.negative&&0===t.negative?(s=this.neg().divmod(t,e),"mod"!==e&&(n=s.div.neg()),"div"!==e&&(o=s.mod.neg(),r&&0!==o.negative&&o.iadd(t)),{div:n,mod:o}):0===this.negative&&0!==t.negative?(s=this.divmod(t.neg(),e),"mod"!==e&&(n=s.div.neg()),{div:n,mod:s.mod}):this.negative&t.negative?(s=this.neg().divmod(t.neg(),e),"div"!==e&&(o=s.mod.neg(),r&&0!==o.negative&&o.isub(t)),{div:s.div,mod:o}):t.length>this.length||this.cmp(t)<0?{div:new a(0),mod:this}:1===t.length?"div"===e?{div:this.divn(t.words[0]),mod:null}:"mod"===e?{div:null,mod:new a(this.modrn(t.words[0]))}:{div:this.divn(t.words[0]),mod:new a(this.modrn(t.words[0]))}:this._wordDiv(t,e);var n,o,s},a.prototype.div=function(t){return this.divmod(t,"div",!1).div},a.prototype.mod=function(t){return this.divmod(t,"mod",!1).mod},a.prototype.umod=function(t){return this.divmod(t,"mod",!0).mod},a.prototype.divRound=function(t){var e=this.divmod(t);if(e.mod.isZero())return e.div;var r=0!==e.div.negative?e.mod.isub(t):e.mod,n=t.ushrn(1),i=t.andln(1),o=r.cmp(n);return o<0||1===i&&0===o?e.div:0!==e.div.negative?e.div.isubn(1):e.div.iaddn(1)},a.prototype.modrn=function(t){var e=t<0;e&&(t=-t),i(t<=67108863);for(var r=(1<<26)%t,n=0,o=this.length-1;o>=0;o--)n=(r*n+(0|this.words[o]))%t;return e?-n:n},a.prototype.modn=function(t){return this.modrn(t)},a.prototype.idivn=function(t){var e=t<0;e&&(t=-t),i(t<=67108863);for(var r=0,n=this.length-1;n>=0;n--){var o=(0|this.words[n])+67108864*r;this.words[n]=o/t|0,r=o%t}return this._strip(),e?this.ineg():this},a.prototype.divn=function(t){return this.clone().idivn(t)},a.prototype.egcd=function(t){i(0===t.negative),i(!t.isZero());var e=this,r=t.clone();e=0!==e.negative?e.umod(t):e.clone();for(var n=new a(1),o=new a(0),s=new a(0),c=new a(1),u=0;e.isEven()&&r.isEven();)e.iushrn(1),r.iushrn(1),++u;for(var f=r.clone(),l=e.clone();!e.isZero();){for(var h=0,p=1;!(e.words[0]&p)&&h<26;++h,p<<=1);if(h>0)for(e.iushrn(h);h-- >0;)(n.isOdd()||o.isOdd())&&(n.iadd(f),o.isub(l)),n.iushrn(1),o.iushrn(1);for(var d=0,y=1;!(r.words[0]&y)&&d<26;++d,y<<=1);if(d>0)for(r.iushrn(d);d-- >0;)(s.isOdd()||c.isOdd())&&(s.iadd(f),c.isub(l)),s.iushrn(1),c.iushrn(1);e.cmp(r)>=0?(e.isub(r),n.isub(s),o.isub(c)):(r.isub(e),s.isub(n),c.isub(o))}return{a:s,b:c,gcd:r.iushln(u)}},a.prototype._invmp=function(t){i(0===t.negative),i(!t.isZero());var e=this,r=t.clone();e=0!==e.negative?e.umod(t):e.clone();for(var n,o=new a(1),s=new a(0),c=r.clone();e.cmpn(1)>0&&r.cmpn(1)>0;){for(var u=0,f=1;!(e.words[0]&f)&&u<26;++u,f<<=1);if(u>0)for(e.iushrn(u);u-- >0;)o.isOdd()&&o.iadd(c),o.iushrn(1);for(var l=0,h=1;!(r.words[0]&h)&&l<26;++l,h<<=1);if(l>0)for(r.iushrn(l);l-- >0;)s.isOdd()&&s.iadd(c),s.iushrn(1);e.cmp(r)>=0?(e.isub(r),o.isub(s)):(r.isub(e),s.isub(o))}return(n=0===e.cmpn(1)?o:s).cmpn(0)<0&&n.iadd(t),n},a.prototype.gcd=function(t){if(this.isZero())return t.abs();if(t.isZero())return this.abs();var e=this.clone(),r=t.clone();e.negative=0,r.negative=0;for(var n=0;e.isEven()&&r.isEven();n++)e.iushrn(1),r.iushrn(1);for(;;){for(;e.isEven();)e.iushrn(1);for(;r.isEven();)r.iushrn(1);var i=e.cmp(r);if(i<0){var o=e;e=r,r=o}else if(0===i||0===r.cmpn(1))break;e.isub(r)}return r.iushln(n)},a.prototype.invm=function(t){return this.egcd(t).a.umod(t)},a.prototype.isEven=function(){return!(1&this.words[0])},a.prototype.isOdd=function(){return!(1&~this.words[0])},a.prototype.andln=function(t){return this.words[0]&t},a.prototype.bincn=function(t){i("number"==typeof t);var e=t%26,r=(t-e)/26,n=1<>>26,s&=67108863,this.words[a]=s}return 0!==o&&(this.words[a]=o,this.length++),this},a.prototype.isZero=function(){return 1===this.length&&0===this.words[0]},a.prototype.cmpn=function(t){var e,r=t<0;if(0!==this.negative&&!r)return-1;if(0===this.negative&&r)return 1;if(this._strip(),this.length>1)e=1;else{r&&(t=-t),i(t<=67108863,"Number is too big");var n=0|this.words[0];e=n===t?0:nt.length)return 1;if(this.length=0;r--){var n=0|this.words[r],i=0|t.words[r];if(n!==i){ni&&(e=1);break}}return e},a.prototype.gtn=function(t){return 1===this.cmpn(t)},a.prototype.gt=function(t){return 1===this.cmp(t)},a.prototype.gten=function(t){return this.cmpn(t)>=0},a.prototype.gte=function(t){return this.cmp(t)>=0},a.prototype.ltn=function(t){return-1===this.cmpn(t)},a.prototype.lt=function(t){return-1===this.cmp(t)},a.prototype.lten=function(t){return this.cmpn(t)<=0},a.prototype.lte=function(t){return this.cmp(t)<=0},a.prototype.eqn=function(t){return 0===this.cmpn(t)},a.prototype.eq=function(t){return 0===this.cmp(t)},a.red=function(t){return new E(t)},a.prototype.toRed=function(t){return i(!this.red,"Already a number in reduction context"),i(0===this.negative,"red works only with positives"),t.convertTo(this)._forceRed(t)},a.prototype.fromRed=function(){return i(this.red,"fromRed works only with numbers in reduction context"),this.red.convertFrom(this)},a.prototype._forceRed=function(t){return this.red=t,this},a.prototype.forceRed=function(t){return i(!this.red,"Already a number in reduction context"),this._forceRed(t)},a.prototype.redAdd=function(t){return i(this.red,"redAdd works only with red numbers"),this.red.add(this,t)},a.prototype.redIAdd=function(t){return i(this.red,"redIAdd works only with red numbers"),this.red.iadd(this,t)},a.prototype.redSub=function(t){return i(this.red,"redSub works only with red numbers"),this.red.sub(this,t)},a.prototype.redISub=function(t){return i(this.red,"redISub works only with red numbers"),this.red.isub(this,t)},a.prototype.redShl=function(t){return i(this.red,"redShl works only with red numbers"),this.red.shl(this,t)},a.prototype.redMul=function(t){return i(this.red,"redMul works only with red numbers"),this.red._verify2(this,t),this.red.mul(this,t)},a.prototype.redIMul=function(t){return i(this.red,"redMul works only with red numbers"),this.red._verify2(this,t),this.red.imul(this,t)},a.prototype.redSqr=function(){return i(this.red,"redSqr works only with red numbers"),this.red._verify1(this),this.red.sqr(this)},a.prototype.redISqr=function(){return i(this.red,"redISqr works only with red numbers"),this.red._verify1(this),this.red.isqr(this)},a.prototype.redSqrt=function(){return i(this.red,"redSqrt works only with red numbers"),this.red._verify1(this),this.red.sqrt(this)},a.prototype.redInvm=function(){return i(this.red,"redInvm works only with red numbers"),this.red._verify1(this),this.red.invm(this)},a.prototype.redNeg=function(){return i(this.red,"redNeg works only with red numbers"),this.red._verify1(this),this.red.neg(this)},a.prototype.redPow=function(t){return i(this.red&&!t.red,"redPow(normalNum)"),this.red._verify1(this),this.red.pow(this,t)};var w={k256:null,p224:null,p192:null,p25519:null};function S(t,e){this.name=t,this.p=new a(e,16),this.n=this.p.bitLength(),this.k=new a(1).iushln(this.n).isub(this.p),this.tmp=this._tmp()}function O(){S.call(this,"k256","ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f")}function j(){S.call(this,"p224","ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001")}function $(){S.call(this,"p192","ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff")}function A(){S.call(this,"25519","7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed")}function E(t){if("string"==typeof t){var e=a._prime(t);this.m=e.p,this.prime=e}else i(t.gtn(1),"modulus must be greater than 1"),this.m=t,this.prime=null}function x(t){E.call(this,t),this.shift=this.m.bitLength(),this.shift%26!=0&&(this.shift+=26-this.shift%26),this.r=new a(1).iushln(this.shift),this.r2=this.imod(this.r.sqr()),this.rinv=this.r._invmp(this.m),this.minv=this.rinv.mul(this.r).isubn(1).div(this.m),this.minv=this.minv.umod(this.r),this.minv=this.r.sub(this.minv)}S.prototype._tmp=function(){var t=new a(null);return t.words=new Array(Math.ceil(this.n/13)),t},S.prototype.ireduce=function(t){var e,r=t;do{this.split(r,this.tmp),e=(r=(r=this.imulK(r)).iadd(this.tmp)).bitLength()}while(e>this.n);var n=e0?r.isub(this.p):void 0!==r.strip?r.strip():r._strip(),r},S.prototype.split=function(t,e){t.iushrn(this.n,0,e)},S.prototype.imulK=function(t){return t.imul(this.k)},o(O,S),O.prototype.split=function(t,e){for(var r=4194303,n=Math.min(t.length,9),i=0;i>>22,o=a}o>>>=22,t.words[i-10]=o,0===o&&t.length>10?t.length-=10:t.length-=9},O.prototype.imulK=function(t){t.words[t.length]=0,t.words[t.length+1]=0,t.length+=2;for(var e=0,r=0;r>>=26,t.words[r]=i,e=n}return 0!==e&&(t.words[t.length++]=e),t},a._prime=function(t){if(w[t])return w[t];var e;if("k256"===t)e=new O;else if("p224"===t)e=new j;else if("p192"===t)e=new $;else{if("p25519"!==t)throw new Error("Unknown prime "+t);e=new A}return w[t]=e,e},E.prototype._verify1=function(t){i(0===t.negative,"red works only with positives"),i(t.red,"red works only with red numbers")},E.prototype._verify2=function(t,e){i(!(t.negative|e.negative),"red works only with positives"),i(t.red&&t.red===e.red,"red works only with red numbers")},E.prototype.imod=function(t){return this.prime?this.prime.ireduce(t)._forceRed(this):(l(t,t.umod(this.m)._forceRed(this)),t)},E.prototype.neg=function(t){return t.isZero()?t.clone():this.m.sub(t)._forceRed(this)},E.prototype.add=function(t,e){this._verify2(t,e);var r=t.add(e);return r.cmp(this.m)>=0&&r.isub(this.m),r._forceRed(this)},E.prototype.iadd=function(t,e){this._verify2(t,e);var r=t.iadd(e);return r.cmp(this.m)>=0&&r.isub(this.m),r},E.prototype.sub=function(t,e){this._verify2(t,e);var r=t.sub(e);return r.cmpn(0)<0&&r.iadd(this.m),r._forceRed(this)},E.prototype.isub=function(t,e){this._verify2(t,e);var r=t.isub(e);return r.cmpn(0)<0&&r.iadd(this.m),r},E.prototype.shl=function(t,e){return this._verify1(t),this.imod(t.ushln(e))},E.prototype.imul=function(t,e){return this._verify2(t,e),this.imod(t.imul(e))},E.prototype.mul=function(t,e){return this._verify2(t,e),this.imod(t.mul(e))},E.prototype.isqr=function(t){return this.imul(t,t.clone())},E.prototype.sqr=function(t){return this.mul(t,t)},E.prototype.sqrt=function(t){if(t.isZero())return t.clone();var e=this.m.andln(3);if(i(e%2==1),3===e){var r=this.m.add(new a(1)).iushrn(2);return this.pow(t,r)}for(var n=this.m.subn(1),o=0;!n.isZero()&&0===n.andln(1);)o++,n.iushrn(1);i(!n.isZero());var s=new a(1).toRed(this),c=s.redNeg(),u=this.m.subn(1).iushrn(1),f=this.m.bitLength();for(f=new a(2*f*f).toRed(this);0!==this.pow(f,u).cmp(c);)f.redIAdd(c);for(var l=this.pow(f,n),h=this.pow(t,n.addn(1).iushrn(1)),p=this.pow(t,n),d=o;0!==p.cmp(s);){for(var y=p,b=0;0!==y.cmp(s);b++)y=y.redSqr();i(b=0;n--){for(var u=e.words[n],f=c-1;f>=0;f--){var l=u>>f&1;i!==r[0]&&(i=this.sqr(i)),0!==l||0!==o?(o<<=1,o|=l,(4==++s||0===n&&0===f)&&(i=this.mul(i,r[o]),s=0,o=0)):s=0}c=26}return i},E.prototype.convertTo=function(t){var e=t.umod(this.m);return e===t?e.clone():e},E.prototype.convertFrom=function(t){var e=t.clone();return e.red=null,e},a.mont=function(t){return new x(t)},o(x,E),x.prototype.convertTo=function(t){return this.imod(t.ushln(this.shift))},x.prototype.convertFrom=function(t){var e=this.imod(t.mul(this.rinv));return e.red=null,e},x.prototype.imul=function(t,e){if(t.isZero()||e.isZero())return t.words[0]=0,t.length=1,t;var r=t.imul(e),n=r.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m),i=r.isub(n).iushrn(this.shift),o=i;return i.cmp(this.m)>=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},x.prototype.mul=function(t,e){if(t.isZero()||e.isZero())return new a(0)._forceRed(this);var r=t.mul(e),n=r.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m),i=r.isub(n).iushrn(this.shift),o=i;return i.cmp(this.m)>=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},x.prototype.invm=function(t){return this.imod(t._invmp(this.m).mul(this.r2))._forceRed(this)}}(t=r.nmd(t),this)},8904:(t,e,r)=>{function n(t){return n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i;function o(t){this.rand=t}if(t.exports=function(t){return i||(i=new o(null)),i.generate(t)},t.exports.Rand=o,o.prototype.generate=function(t){return this._rand(t)},o.prototype._rand=function(t){if(this.rand.getBytes)return this.rand.getBytes(t);for(var e=new Uint8Array(t),r=0;r{var n=r(9732).Buffer;function i(t){n.isBuffer(t)||(t=n.from(t));for(var e=t.length/4|0,r=new Array(e),i=0;i>>24]^f[d>>>16&255]^l[y>>>8&255]^h[255&b]^e[m++],a=u[d>>>24]^f[y>>>16&255]^l[b>>>8&255]^h[255&p]^e[m++],s=u[y>>>24]^f[b>>>16&255]^l[p>>>8&255]^h[255&d]^e[m++],c=u[b>>>24]^f[p>>>16&255]^l[d>>>8&255]^h[255&y]^e[m++],p=o,d=a,y=s,b=c;return o=(n[p>>>24]<<24|n[d>>>16&255]<<16|n[y>>>8&255]<<8|n[255&b])^e[m++],a=(n[d>>>24]<<24|n[y>>>16&255]<<16|n[b>>>8&255]<<8|n[255&p])^e[m++],s=(n[y>>>24]<<24|n[b>>>16&255]<<16|n[p>>>8&255]<<8|n[255&d])^e[m++],c=(n[b>>>24]<<24|n[p>>>16&255]<<16|n[d>>>8&255]<<8|n[255&y])^e[m++],[o>>>=0,a>>>=0,s>>>=0,c>>>=0]}var s=[0,1,2,4,8,16,32,64,128,27,54],c=function(){for(var t=new Array(256),e=0;e<256;e++)t[e]=e<128?e<<1:e<<1^283;for(var r=[],n=[],i=[[],[],[],[]],o=[[],[],[],[]],a=0,s=0,c=0;c<256;++c){var u=s^s<<1^s<<2^s<<3^s<<4;u=u>>>8^255&u^99,r[a]=u,n[u]=a;var f=t[a],l=t[f],h=t[l],p=257*t[u]^16843008*u;i[0][a]=p<<24|p>>>8,i[1][a]=p<<16|p>>>16,i[2][a]=p<<8|p>>>24,i[3][a]=p,p=16843009*h^65537*l^257*f^16843008*a,o[0][u]=p<<24|p>>>8,o[1][u]=p<<16|p>>>16,o[2][u]=p<<8|p>>>24,o[3][u]=p,0===a?a=s=1:(a=f^t[t[t[h^f]]],s^=t[t[s]])}return{SBOX:r,INV_SBOX:n,SUB_MIX:i,INV_SUB_MIX:o}}();function u(t){this._key=i(t),this._reset()}u.blockSize=16,u.keySize=32,u.prototype.blockSize=u.blockSize,u.prototype.keySize=u.keySize,u.prototype._reset=function(){for(var t=this._key,e=t.length,r=e+6,n=4*(r+1),i=[],o=0;o>>24,a=c.SBOX[a>>>24]<<24|c.SBOX[a>>>16&255]<<16|c.SBOX[a>>>8&255]<<8|c.SBOX[255&a],a^=s[o/e|0]<<24):e>6&&o%e==4&&(a=c.SBOX[a>>>24]<<24|c.SBOX[a>>>16&255]<<16|c.SBOX[a>>>8&255]<<8|c.SBOX[255&a]),i[o]=i[o-e]^a}for(var u=[],f=0;f>>24]]^c.INV_SUB_MIX[1][c.SBOX[h>>>16&255]]^c.INV_SUB_MIX[2][c.SBOX[h>>>8&255]]^c.INV_SUB_MIX[3][c.SBOX[255&h]]}this._nRounds=r,this._keySchedule=i,this._invKeySchedule=u},u.prototype.encryptBlockRaw=function(t){return a(t=i(t),this._keySchedule,c.SUB_MIX,c.SBOX,this._nRounds)},u.prototype.encryptBlock=function(t){var e=this.encryptBlockRaw(t),r=n.allocUnsafe(16);return r.writeUInt32BE(e[0],0),r.writeUInt32BE(e[1],4),r.writeUInt32BE(e[2],8),r.writeUInt32BE(e[3],12),r},u.prototype.decryptBlock=function(t){var e=(t=i(t))[1];t[1]=t[3],t[3]=e;var r=a(t,this._invKeySchedule,c.INV_SUB_MIX,c.INV_SBOX,this._nRounds),o=n.allocUnsafe(16);return o.writeUInt32BE(r[0],0),o.writeUInt32BE(r[3],4),o.writeUInt32BE(r[2],8),o.writeUInt32BE(r[1],12),o},u.prototype.scrub=function(){o(this._keySchedule),o(this._invKeySchedule),o(this._key)},t.exports.AES=u},1085:(t,e,r)=>{var n=r(5401),i=r(9732).Buffer,o=r(2533),a=r(1679),s=r(9363),c=r(6876),u=r(9003);function f(t,e,r,a){o.call(this);var c=i.alloc(4,0);this._cipher=new n.AES(e);var f=this._cipher.encryptBlock(c);this._ghash=new s(f),r=function(t,e,r){if(12===e.length)return t._finID=i.concat([e,i.from([0,0,0,1])]),i.concat([e,i.from([0,0,0,2])]);var n=new s(r),o=e.length,a=o%16;n.update(e),a&&(a=16-a,n.update(i.alloc(a,0))),n.update(i.alloc(8,0));var c=8*o,f=i.alloc(8);f.writeUIntBE(c,0,8),n.update(f),t._finID=n.state;var l=i.from(t._finID);return u(l),l}(this,r,f),this._prev=i.from(r),this._cache=i.allocUnsafe(0),this._secCache=i.allocUnsafe(0),this._decrypt=a,this._alen=0,this._len=0,this._mode=t,this._authTag=null,this._called=!1}a(f,o),f.prototype._update=function(t){if(!this._called&&this._alen){var e=16-this._alen%16;e<16&&(e=i.alloc(e,0),this._ghash.update(e))}this._called=!0;var r=this._mode.encrypt(this,t);return this._decrypt?this._ghash.update(t):this._ghash.update(r),this._len+=t.length,r},f.prototype._final=function(){if(this._decrypt&&!this._authTag)throw new Error("Unsupported state or unable to authenticate data");var t=c(this._ghash.final(8*this._alen,8*this._len),this._cipher.encryptBlock(this._finID));if(this._decrypt&&function(t,e){var r=0;t.length!==e.length&&r++;for(var n=Math.min(t.length,e.length),i=0;i{var n=r(3604),i=r(1808),o=r(3219);e.createCipher=e.Cipher=n.createCipher,e.createCipheriv=e.Cipheriv=n.createCipheriv,e.createDecipher=e.Decipher=i.createDecipher,e.createDecipheriv=e.Decipheriv=i.createDecipheriv,e.listCiphers=e.getCiphers=function(){return Object.keys(o)}},1808:(t,e,r)=>{var n=r(1085),i=r(9732).Buffer,o=r(8629),a=r(5407),s=r(2533),c=r(5401),u=r(1685);function f(t,e,r){s.call(this),this._cache=new l,this._last=void 0,this._cipher=new c.AES(e),this._prev=i.from(r),this._mode=t,this._autopadding=!0}function l(){this.cache=i.allocUnsafe(0)}function h(t,e,r){var s=o[t.toLowerCase()];if(!s)throw new TypeError("invalid suite type");if("string"==typeof r&&(r=i.from(r)),"GCM"!==s.mode&&r.length!==s.iv)throw new TypeError("invalid iv length "+r.length);if("string"==typeof e&&(e=i.from(e)),e.length!==s.key/8)throw new TypeError("invalid key length "+e.length);return"stream"===s.type?new a(s.module,e,r,!0):"auth"===s.type?new n(s.module,e,r,!0):new f(s.module,e,r)}r(1679)(f,s),f.prototype._update=function(t){var e,r;this._cache.add(t);for(var n=[];e=this._cache.get(this._autopadding);)r=this._mode.decrypt(this,e),n.push(r);return i.concat(n)},f.prototype._final=function(){var t=this._cache.flush();if(this._autopadding)return function(t){var e=t[15];if(e<1||e>16)throw new Error("unable to decrypt data");for(var r=-1;++r16)return e=this.cache.slice(0,16),this.cache=this.cache.slice(16),e}else if(this.cache.length>=16)return e=this.cache.slice(0,16),this.cache=this.cache.slice(16),e;return null},l.prototype.flush=function(){if(this.cache.length)return this.cache},e.createDecipher=function(t,e){var r=o[t.toLowerCase()];if(!r)throw new TypeError("invalid suite type");var n=u(e,!1,r.key,r.iv);return h(t,n.key,n.iv)},e.createDecipheriv=h},3604:(t,e,r)=>{var n=r(8629),i=r(1085),o=r(9732).Buffer,a=r(5407),s=r(2533),c=r(5401),u=r(1685);function f(t,e,r){s.call(this),this._cache=new h,this._cipher=new 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n={ECB:r(9907),CBC:r(5459),CFB:r(4488),CFB8:r(6322),CFB1:r(4937),OFB:r(4252),CTR:r(2538),GCM:r(2538)},i=r(3219);for(var o in i)i[o].module=n[i[o].mode];t.exports=i},4252:(t,e,r)=>{var n=r(5832).Buffer,i=r(6876);function o(t){return t._prev=t._cipher.encryptBlock(t._prev),t._prev}e.encrypt=function(t,e){for(;t._cache.length{var n=r(5401),i=r(9732).Buffer,o=r(2533);function a(t,e,r,a){o.call(this),this._cipher=new n.AES(e),this._prev=i.from(r),this._cache=i.allocUnsafe(0),this._secCache=i.allocUnsafe(0),this._decrypt=a,this._mode=t}r(1679)(a,o),a.prototype._update=function(t){return this._mode.encrypt(this,t,this._decrypt)},a.prototype._final=function(){this._cipher.scrub()},t.exports=a},9652:(t,e,r)=>{var n=r(8201),i=r(2098),o=r(8629),a=r(3849),s=r(1685);function c(t,e,r){if(t=t.toLowerCase(),o[t])return i.createCipheriv(t,e,r);if(a[t])return new n({key:e,iv:r,mode:t});throw new TypeError("invalid suite type")}function u(t,e,r){if(t=t.toLowerCase(),o[t])return 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e,r=t.mode.toLowerCase(),i=s[r];e=t.decrypt?"decrypt":"encrypt";var o=t.key;a.isBuffer(o)||(o=a.from(o)),"des-ede"!==r&&"des-ede-cbc"!==r||(o=a.concat([o,o.slice(0,8)]));var c=t.iv;a.isBuffer(c)||(c=a.from(c)),this._des=i.create({key:o,iv:c,type:e})}s.des=s["des-cbc"],s.des3=s["des-ede3-cbc"],t.exports=c,o(c,n),c.prototype._update=function(t){return a.from(this._des.update(t))},c.prototype._final=function(){return a.from(this._des.final())}},3849:(t,e)=>{e["des-ecb"]={key:8,iv:0},e["des-cbc"]=e.des={key:8,iv:8},e["des-ede3-cbc"]=e.des3={key:24,iv:8},e["des-ede3"]={key:24,iv:0},e["des-ede-cbc"]={key:16,iv:8},e["des-ede"]={key:16,iv:0}},1095:(t,e,r)=>{var n=r(5832).Buffer,i=r(7799),o=r(4276);function a(t){var e,r=t.modulus.byteLength();do{e=new i(o(r))}while(e.cmp(t.modulus)>=0||!e.umod(t.prime1)||!e.umod(t.prime2));return e}function s(t,e){var r=function(t){var e=a(t);return{blinder:e.toRed(i.mont(t.modulus)).redPow(new 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a=0;a>>1];r=o.r28shl(r,s),i=o.r28shl(i,s),o.pc2(r,i,t.keys,a)}},c.prototype._update=function(t,e,r,n){var i=this._desState,a=o.readUInt32BE(t,e),s=o.readUInt32BE(t,e+4);o.ip(a,s,i.tmp,0),a=i.tmp[0],s=i.tmp[1],"encrypt"===this.type?this._encrypt(i,a,s,i.tmp,0):this._decrypt(i,a,s,i.tmp,0),a=i.tmp[0],s=i.tmp[1],o.writeUInt32BE(r,a,n),o.writeUInt32BE(r,s,n+4)},c.prototype._pad=function(t,e){if(!1===this.padding)return!1;for(var r=t.length-e,n=e;n>>0,a=h}o.rip(s,a,n,i)},c.prototype._decrypt=function(t,e,r,n,i){for(var a=r,s=e,c=t.keys.length-2;c>=0;c-=2){var u=t.keys[c],f=t.keys[c+1];o.expand(a,t.tmp,0),u^=t.tmp[0],f^=t.tmp[1];var l=o.substitute(u,f),h=a;a=(s^o.permute(l))>>>0,s=h}o.rip(a,s,n,i)}},1368:(t,e,r)=>{"use strict";var n=r(3528),i=r(1679),o=r(365),a=r(1048);function s(t,e){n.equal(e.length,24,"Invalid key length");var r=e.slice(0,8),i=e.slice(8,16),o=e.slice(16,24);this.ciphers="encrypt"===t?[a.create({type:"encrypt",key:r}),a.create({type:"decrypt",key:i}),a.create({type:"encrypt",key:o})]:[a.create({type:"decrypt",key:o}),a.create({type:"encrypt",key:i}),a.create({type:"decrypt",key:r})]}function c(t){o.call(this,t);var e=new s(this.type,this.options.key);this._edeState=e}i(c,o),t.exports=c,c.create=function(t){return new c(t)},c.prototype._update=function(t,e,r,n){var i=this._edeState;i.ciphers[0]._update(t,e,r,n),i.ciphers[1]._update(r,n,r,n),i.ciphers[2]._update(r,n,r,n)},c.prototype._pad=a.prototype._pad,c.prototype._unpad=a.prototype._unpad},9473:(t,e)=>{"use strict";e.readUInt32BE=function(t,e){return(t[0+e]<<24|t[1+e]<<16|t[2+e]<<8|t[3+e])>>>0},e.writeUInt32BE=function(t,e,r){t[0+r]=e>>>24,t[1+r]=e>>>16&255,t[2+r]=e>>>8&255,t[3+r]=255&e},e.ip=function(t,e,r,n){for(var i=0,o=0,a=6;a>=0;a-=2){for(var s=0;s<=24;s+=8)i<<=1,i|=e>>>s+a&1;for(s=0;s<=24;s+=8)i<<=1,i|=t>>>s+a&1}for(a=6;a>=0;a-=2){for(s=1;s<=25;s+=8)o<<=1,o|=e>>>s+a&1;for(s=1;s<=25;s+=8)o<<=1,o|=t>>>s+a&1}r[n+0]=i>>>0,r[n+1]=o>>>0},e.rip=function(t,e,r,n){for(var i=0,o=0,a=0;a<4;a++)for(var s=24;s>=0;s-=8)i<<=1,i|=e>>>s+a&1,i<<=1,i|=t>>>s+a&1;for(a=4;a<8;a++)for(s=24;s>=0;s-=8)o<<=1,o|=e>>>s+a&1,o<<=1,o|=t>>>s+a&1;r[n+0]=i>>>0,r[n+1]=o>>>0},e.pc1=function(t,e,r,n){for(var i=0,o=0,a=7;a>=5;a--){for(var s=0;s<=24;s+=8)i<<=1,i|=e>>s+a&1;for(s=0;s<=24;s+=8)i<<=1,i|=t>>s+a&1}for(s=0;s<=24;s+=8)i<<=1,i|=e>>s+a&1;for(a=1;a<=3;a++){for(s=0;s<=24;s+=8)o<<=1,o|=e>>s+a&1;for(s=0;s<=24;s+=8)o<<=1,o|=t>>s+a&1}for(s=0;s<=24;s+=8)o<<=1,o|=t>>s+a&1;r[n+0]=i>>>0,r[n+1]=o>>>0},e.r28shl=function(t,e){return t<>>28-e};var r=[14,11,17,4,27,23,25,0,13,22,7,18,5,9,16,24,2,20,12,21,1,8,15,26,15,4,25,19,9,1,26,16,5,11,23,8,12,7,17,0,22,3,10,14,6,20,27,24];e.pc2=function(t,e,n,i){for(var o=0,a=0,s=r.length>>>1,c=0;c>>r[c]&1;for(c=s;c>>r[c]&1;n[i+0]=o>>>0,n[i+1]=a>>>0},e.expand=function(t,e,r){var n=0,i=0;n=(1&t)<<5|t>>>27;for(var o=23;o>=15;o-=4)n<<=6,n|=t>>>o&63;for(o=11;o>=3;o-=4)i|=t>>>o&63,i<<=6;i|=(31&t)<<1|t>>>31,e[r+0]=n>>>0,e[r+1]=i>>>0};var n=[14,0,4,15,13,7,1,4,2,14,15,2,11,13,8,1,3,10,10,6,6,12,12,11,5,9,9,5,0,3,7,8,4,15,1,12,14,8,8,2,13,4,6,9,2,1,11,7,15,5,12,11,9,3,7,14,3,10,10,0,5,6,0,13,15,3,1,13,8,4,14,7,6,15,11,2,3,8,4,14,9,12,7,0,2,1,13,10,12,6,0,9,5,11,10,5,0,13,14,8,7,10,11,1,10,3,4,15,13,4,1,2,5,11,8,6,12,7,6,12,9,0,3,5,2,14,15,9,10,13,0,7,9,0,14,9,6,3,3,4,15,6,5,10,1,2,13,8,12,5,7,14,11,12,4,11,2,15,8,1,13,1,6,10,4,13,9,0,8,6,15,9,3,8,0,7,11,4,1,15,2,14,12,3,5,11,10,5,14,2,7,12,7,13,13,8,14,11,3,5,0,6,6,15,9,0,10,3,1,4,2,7,8,2,5,12,11,1,12,10,4,14,15,9,10,3,6,15,9,0,0,6,12,10,11,1,7,13,13,8,15,9,1,4,3,5,14,11,5,12,2,7,8,2,4,14,2,14,12,11,4,2,1,12,7,4,10,7,11,13,6,1,8,5,5,0,3,15,15,10,13,3,0,9,14,8,9,6,4,11,2,8,1,12,11,7,10,1,13,14,7,2,8,13,15,6,9,15,12,0,5,9,6,10,3,4,0,5,14,3,12,10,1,15,10,4,15,2,9,7,2,12,6,9,8,5,0,6,13,1,3,13,4,14,14,0,7,11,5,3,11,8,9,4,14,3,15,2,5,12,2,9,8,5,12,15,3,10,7,11,0,14,4,1,10,7,1,6,13,0,11,8,6,13,4,13,11,0,2,11,14,7,15,4,0,9,8,1,13,10,3,14,12,3,9,5,7,12,5,2,10,15,6,8,1,6,1,6,4,11,11,13,13,8,12,1,3,4,7,10,14,7,10,9,15,5,6,0,8,15,0,14,5,2,9,3,2,12,13,1,2,15,8,13,4,8,6,10,15,3,11,7,1,4,10,12,9,5,3,6,14,11,5,0,0,14,12,9,7,2,7,2,11,1,4,14,1,7,9,4,12,10,14,8,2,13,0,15,6,12,10,9,13,0,15,3,3,5,5,6,8,11];e.substitute=function(t,e){for(var r=0,i=0;i<4;i++)r<<=4,r|=n[64*i+(t>>>18-6*i&63)];for(i=0;i<4;i++)r<<=4,r|=n[256+64*i+(e>>>18-6*i&63)];return r>>>0};var i=[16,25,12,11,3,20,4,15,31,17,9,6,27,14,1,22,30,24,8,18,0,5,29,23,13,19,2,26,10,21,28,7];e.permute=function(t){for(var e=0,r=0;r>>i[r]&1;return e>>>0},e.padSplit=function(t,e,r){for(var n=t.toString(2);n.length{var n=r(5832).Buffer,i=r(1673),o=r(3241),a=r(8151),s={binary:!0,hex:!0,base64:!0};e.DiffieHellmanGroup=e.createDiffieHellmanGroup=e.getDiffieHellman=function(t){var e=new n(o[t].prime,"hex"),r=new n(o[t].gen,"hex");return new a(e,r)},e.createDiffieHellman=e.DiffieHellman=function t(e,r,o,c){return n.isBuffer(r)||void 0===s[r]?t(e,"binary",r,o):(r=r||"binary",c=c||"binary",o=o||new n([2]),n.isBuffer(o)||(o=new n(o,c)),"number"==typeof e?new a(i(e,o),o,!0):(n.isBuffer(e)||(e=new n(e,r)),new a(e,o,!0)))}},8151:(t,e,r)=>{var n=r(5832).Buffer,i=r(7799),o=new(r(1257)),a=new i(24),s=new i(11),c=new i(10),u=new i(3),f=new i(7),l=r(1673),h=r(4276);function p(t,e){return e=e||"utf8",n.isBuffer(t)||(t=new n(t,e)),this._pub=new i(t),this}function d(t,e){return e=e||"utf8",n.isBuffer(t)||(t=new n(t,e)),this._priv=new i(t),this}t.exports=b;var y={};function b(t,e,r){this.setGenerator(e),this.__prime=new i(t),this._prime=i.mont(this.__prime),this._primeLen=t.length,this._pub=void 0,this._priv=void 0,this._primeCode=void 0,r?(this.setPublicKey=p,this.setPrivateKey=d):this._primeCode=8}function m(t,e){var r=new n(t.toArray());return e?r.toString(e):r}Object.defineProperty(b.prototype,"verifyError",{enumerable:!0,get:function(){return"number"!=typeof this._primeCode&&(this._primeCode=function(t,e){var r=e.toString("hex"),n=[r,t.toString(16)].join("_");if(n in y)return y[n];var i,h=0;if(t.isEven()||!l.simpleSieve||!l.fermatTest(t)||!o.test(t))return h+=1,h+="02"===r||"05"===r?8:4,y[n]=h,h;switch(o.test(t.shrn(1))||(h+=2),r){case"02":t.mod(a).cmp(s)&&(h+=8);break;case"05":(i=t.mod(c)).cmp(u)&&i.cmp(f)&&(h+=8);break;default:h+=4}return y[n]=h,h}(this.__prime,this.__gen)),this._primeCode}}),b.prototype.generateKeys=function(){return this._priv||(this._priv=new i(h(this._primeLen))),this._pub=this._gen.toRed(this._prime).redPow(this._priv).fromRed(),this.getPublicKey()},b.prototype.computeSecret=function(t){var e=(t=(t=new i(t)).toRed(this._prime)).redPow(this._priv).fromRed(),r=new n(e.toArray()),o=this.getPrime();if(r.length{var n=r(4276);t.exports=v,v.simpleSieve=b,v.fermatTest=m;var i=r(7799),o=new i(24),a=new(r(1257)),s=new i(1),c=new i(2),u=new i(5),f=(new i(16),new i(8),new i(10)),l=new i(3),h=(new i(7),new i(11)),p=new i(4),d=(new i(12),null);function y(){if(null!==d)return d;var t=[];t[0]=2;for(var e=1,r=3;r<1048576;r+=2){for(var n=Math.ceil(Math.sqrt(r)),i=0;it;)r.ishrn(1);if(r.isEven()&&r.iadd(s),r.testn(1)||r.iadd(c),e.cmp(c)){if(!e.cmp(u))for(;r.mod(f).cmp(l);)r.iadd(p)}else for(;r.mod(o).cmp(h);)r.iadd(p);if(b(d=r.shrn(1))&&b(r)&&m(d)&&m(r)&&a.test(d)&&a.test(r))return r}}},7312:(t,e,r)=>{"use strict";var n=e;n.version=r(1636).rE,n.utils=r(1970),n.rand=r(8904),n.curve=r(5803),n.curves=r(6379),n.ec=r(7416),n.eddsa=r(4919)},3334:(t,e,r)=>{"use strict";var n=r(7799),i=r(1970),o=i.getNAF,a=i.getJSF,s=i.assert;function c(t,e){this.type=t,this.p=new n(e.p,16),this.red=e.prime?n.red(e.prime):n.mont(this.p),this.zero=new n(0).toRed(this.red),this.one=new n(1).toRed(this.red),this.two=new n(2).toRed(this.red),this.n=e.n&&new n(e.n,16),this.g=e.g&&this.pointFromJSON(e.g,e.gRed),this._wnafT1=new Array(4),this._wnafT2=new Array(4),this._wnafT3=new Array(4),this._wnafT4=new Array(4),this._bitLength=this.n?this.n.bitLength():0;var r=this.n&&this.p.div(this.n);!r||r.cmpn(100)>0?this.redN=null:(this._maxwellTrick=!0,this.redN=this.n.toRed(this.red))}function u(t,e){this.curve=t,this.type=e,this.precomputed=null}t.exports=c,c.prototype.point=function(){throw new Error("Not implemented")},c.prototype.validate=function(){throw new Error("Not implemented")},c.prototype._fixedNafMul=function(t,e){s(t.precomputed);var r=t._getDoubles(),n=o(e,1,this._bitLength),i=(1<=a;f--)c=(c<<1)+n[f];u.push(c)}for(var l=this.jpoint(null,null,null),h=this.jpoint(null,null,null),p=i;p>0;p--){for(a=0;a=0;u--){for(var f=0;u>=0&&0===a[u];u--)f++;if(u>=0&&f++,c=c.dblp(f),u<0)break;var l=a[u];s(0!==l),c="affine"===t.type?l>0?c.mixedAdd(i[l-1>>1]):c.mixedAdd(i[-l-1>>1].neg()):l>0?c.add(i[l-1>>1]):c.add(i[-l-1>>1].neg())}return"affine"===t.type?c.toP():c},c.prototype._wnafMulAdd=function(t,e,r,n,i){var s,c,u,f=this._wnafT1,l=this._wnafT2,h=this._wnafT3,p=0;for(s=0;s=1;s-=2){var y=s-1,b=s;if(1===f[y]&&1===f[b]){var m=[e[y],null,null,e[b]];0===e[y].y.cmp(e[b].y)?(m[1]=e[y].add(e[b]),m[2]=e[y].toJ().mixedAdd(e[b].neg())):0===e[y].y.cmp(e[b].y.redNeg())?(m[1]=e[y].toJ().mixedAdd(e[b]),m[2]=e[y].add(e[b].neg())):(m[1]=e[y].toJ().mixedAdd(e[b]),m[2]=e[y].toJ().mixedAdd(e[b].neg()));var v=[-3,-1,-5,-7,0,7,5,1,3],g=a(r[y],r[b]);for(p=Math.max(g[0].length,p),h[y]=new Array(p),h[b]=new Array(p),c=0;c=0;s--){for(var j=0;s>=0;){var $=!0;for(c=0;c=0&&j++,S=S.dblp(j),s<0)break;for(c=0;c0?u=l[c][A-1>>1]:A<0&&(u=l[c][-A-1>>1].neg()),S="affine"===u.type?S.mixedAdd(u):S.add(u))}}for(s=0;s=Math.ceil((t.bitLength()+1)/e.step)},u.prototype._getDoubles=function(t,e){if(this.precomputed&&this.precomputed.doubles)return this.precomputed.doubles;for(var r=[this],n=this,i=0;i{"use strict";var n=r(1970),i=r(7799),o=r(1679),a=r(3334),s=n.assert;function c(t){this.twisted=1!=(0|t.a),this.mOneA=this.twisted&&-1==(0|t.a),this.extended=this.mOneA,a.call(this,"edwards",t),this.a=new i(t.a,16).umod(this.red.m),this.a=this.a.toRed(this.red),this.c=new i(t.c,16).toRed(this.red),this.c2=this.c.redSqr(),this.d=new i(t.d,16).toRed(this.red),this.dd=this.d.redAdd(this.d),s(!this.twisted||0===this.c.fromRed().cmpn(1)),this.oneC=1==(0|t.c)}function u(t,e,r,n,o){a.BasePoint.call(this,t,"projective"),null===e&&null===r&&null===n?(this.x=this.curve.zero,this.y=this.curve.one,this.z=this.curve.one,this.t=this.curve.zero,this.zOne=!0):(this.x=new i(e,16),this.y=new i(r,16),this.z=n?new i(n,16):this.curve.one,this.t=o&&new i(o,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.t&&!this.t.red&&(this.t=this.t.toRed(this.curve.red)),this.zOne=this.z===this.curve.one,this.curve.extended&&!this.t&&(this.t=this.x.redMul(this.y),this.zOne||(this.t=this.t.redMul(this.z.redInvm()))))}o(c,a),t.exports=c,c.prototype._mulA=function(t){return this.mOneA?t.redNeg():this.a.redMul(t)},c.prototype._mulC=function(t){return this.oneC?t:this.c.redMul(t)},c.prototype.jpoint=function(t,e,r,n){return this.point(t,e,r,n)},c.prototype.pointFromX=function(t,e){(t=new i(t,16)).red||(t=t.toRed(this.red));var r=t.redSqr(),n=this.c2.redSub(this.a.redMul(r)),o=this.one.redSub(this.c2.redMul(this.d).redMul(r)),a=n.redMul(o.redInvm()),s=a.redSqrt();if(0!==s.redSqr().redSub(a).cmp(this.zero))throw new Error("invalid point");var c=s.fromRed().isOdd();return(e&&!c||!e&&c)&&(s=s.redNeg()),this.point(t,s)},c.prototype.pointFromY=function(t,e){(t=new i(t,16)).red||(t=t.toRed(this.red));var r=t.redSqr(),n=r.redSub(this.c2),o=r.redMul(this.d).redMul(this.c2).redSub(this.a),a=n.redMul(o.redInvm());if(0===a.cmp(this.zero)){if(e)throw new Error("invalid point");return this.point(this.zero,t)}var s=a.redSqrt();if(0!==s.redSqr().redSub(a).cmp(this.zero))throw new Error("invalid point");return s.fromRed().isOdd()!==e&&(s=s.redNeg()),this.point(s,t)},c.prototype.validate=function(t){if(t.isInfinity())return!0;t.normalize();var e=t.x.redSqr(),r=t.y.redSqr(),n=e.redMul(this.a).redAdd(r),i=this.c2.redMul(this.one.redAdd(this.d.redMul(e).redMul(r)));return 0===n.cmp(i)},o(u,a.BasePoint),c.prototype.pointFromJSON=function(t){return u.fromJSON(this,t)},c.prototype.point=function(t,e,r,n){return new u(this,t,e,r,n)},u.fromJSON=function(t,e){return new u(t,e[0],e[1],e[2])},u.prototype.inspect=function(){return this.isInfinity()?"":""},u.prototype.isInfinity=function(){return 0===this.x.cmpn(0)&&(0===this.y.cmp(this.z)||this.zOne&&0===this.y.cmp(this.curve.c))},u.prototype._extDbl=function(){var t=this.x.redSqr(),e=this.y.redSqr(),r=this.z.redSqr();r=r.redIAdd(r);var n=this.curve._mulA(t),i=this.x.redAdd(this.y).redSqr().redISub(t).redISub(e),o=n.redAdd(e),a=o.redSub(r),s=n.redSub(e),c=i.redMul(a),u=o.redMul(s),f=i.redMul(s),l=a.redMul(o);return this.curve.point(c,u,l,f)},u.prototype._projDbl=function(){var t,e,r,n,i,o,a=this.x.redAdd(this.y).redSqr(),s=this.x.redSqr(),c=this.y.redSqr();if(this.curve.twisted){var u=(n=this.curve._mulA(s)).redAdd(c);this.zOne?(t=a.redSub(s).redSub(c).redMul(u.redSub(this.curve.two)),e=u.redMul(n.redSub(c)),r=u.redSqr().redSub(u).redSub(u)):(i=this.z.redSqr(),o=u.redSub(i).redISub(i),t=a.redSub(s).redISub(c).redMul(o),e=u.redMul(n.redSub(c)),r=u.redMul(o))}else n=s.redAdd(c),i=this.curve._mulC(this.z).redSqr(),o=n.redSub(i).redSub(i),t=this.curve._mulC(a.redISub(n)).redMul(o),e=this.curve._mulC(n).redMul(s.redISub(c)),r=n.redMul(o);return this.curve.point(t,e,r)},u.prototype.dbl=function(){return this.isInfinity()?this:this.curve.extended?this._extDbl():this._projDbl()},u.prototype._extAdd=function(t){var e=this.y.redSub(this.x).redMul(t.y.redSub(t.x)),r=this.y.redAdd(this.x).redMul(t.y.redAdd(t.x)),n=this.t.redMul(this.curve.dd).redMul(t.t),i=this.z.redMul(t.z.redAdd(t.z)),o=r.redSub(e),a=i.redSub(n),s=i.redAdd(n),c=r.redAdd(e),u=o.redMul(a),f=s.redMul(c),l=o.redMul(c),h=a.redMul(s);return this.curve.point(u,f,h,l)},u.prototype._projAdd=function(t){var e,r,n=this.z.redMul(t.z),i=n.redSqr(),o=this.x.redMul(t.x),a=this.y.redMul(t.y),s=this.curve.d.redMul(o).redMul(a),c=i.redSub(s),u=i.redAdd(s),f=this.x.redAdd(this.y).redMul(t.x.redAdd(t.y)).redISub(o).redISub(a),l=n.redMul(c).redMul(f);return this.curve.twisted?(e=n.redMul(u).redMul(a.redSub(this.curve._mulA(o))),r=c.redMul(u)):(e=n.redMul(u).redMul(a.redSub(o)),r=this.curve._mulC(c).redMul(u)),this.curve.point(l,e,r)},u.prototype.add=function(t){return this.isInfinity()?t:t.isInfinity()?this:this.curve.extended?this._extAdd(t):this._projAdd(t)},u.prototype.mul=function(t){return this._hasDoubles(t)?this.curve._fixedNafMul(this,t):this.curve._wnafMul(this,t)},u.prototype.mulAdd=function(t,e,r){return this.curve._wnafMulAdd(1,[this,e],[t,r],2,!1)},u.prototype.jmulAdd=function(t,e,r){return this.curve._wnafMulAdd(1,[this,e],[t,r],2,!0)},u.prototype.normalize=function(){if(this.zOne)return this;var t=this.z.redInvm();return this.x=this.x.redMul(t),this.y=this.y.redMul(t),this.t&&(this.t=this.t.redMul(t)),this.z=this.curve.one,this.zOne=!0,this},u.prototype.neg=function(){return this.curve.point(this.x.redNeg(),this.y,this.z,this.t&&this.t.redNeg())},u.prototype.getX=function(){return this.normalize(),this.x.fromRed()},u.prototype.getY=function(){return this.normalize(),this.y.fromRed()},u.prototype.eq=function(t){return this===t||0===this.getX().cmp(t.getX())&&0===this.getY().cmp(t.getY())},u.prototype.eqXToP=function(t){var e=t.toRed(this.curve.red).redMul(this.z);if(0===this.x.cmp(e))return!0;for(var r=t.clone(),n=this.curve.redN.redMul(this.z);;){if(r.iadd(this.curve.n),r.cmp(this.curve.p)>=0)return!1;if(e.redIAdd(n),0===this.x.cmp(e))return!0}},u.prototype.toP=u.prototype.normalize,u.prototype.mixedAdd=u.prototype.add},5803:(t,e,r)=>{"use strict";var n=e;n.base=r(3334),n.short=r(5045),n.mont=r(3453),n.edwards=r(9723)},3453:(t,e,r)=>{"use strict";var n=r(7799),i=r(1679),o=r(3334),a=r(1970);function s(t){o.call(this,"mont",t),this.a=new n(t.a,16).toRed(this.red),this.b=new n(t.b,16).toRed(this.red),this.i4=new n(4).toRed(this.red).redInvm(),this.two=new n(2).toRed(this.red),this.a24=this.i4.redMul(this.a.redAdd(this.two))}function c(t,e,r){o.BasePoint.call(this,t,"projective"),null===e&&null===r?(this.x=this.curve.one,this.z=this.curve.zero):(this.x=new n(e,16),this.z=new n(r,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)))}i(s,o),t.exports=s,s.prototype.validate=function(t){var e=t.normalize().x,r=e.redSqr(),n=r.redMul(e).redAdd(r.redMul(this.a)).redAdd(e);return 0===n.redSqrt().redSqr().cmp(n)},i(c,o.BasePoint),s.prototype.decodePoint=function(t,e){return this.point(a.toArray(t,e),1)},s.prototype.point=function(t,e){return new c(this,t,e)},s.prototype.pointFromJSON=function(t){return c.fromJSON(this,t)},c.prototype.precompute=function(){},c.prototype._encode=function(){return this.getX().toArray("be",this.curve.p.byteLength())},c.fromJSON=function(t,e){return new c(t,e[0],e[1]||t.one)},c.prototype.inspect=function(){return this.isInfinity()?"":""},c.prototype.isInfinity=function(){return 0===this.z.cmpn(0)},c.prototype.dbl=function(){var t=this.x.redAdd(this.z).redSqr(),e=this.x.redSub(this.z).redSqr(),r=t.redSub(e),n=t.redMul(e),i=r.redMul(e.redAdd(this.curve.a24.redMul(r)));return this.curve.point(n,i)},c.prototype.add=function(){throw new Error("Not supported on Montgomery curve")},c.prototype.diffAdd=function(t,e){var r=this.x.redAdd(this.z),n=this.x.redSub(this.z),i=t.x.redAdd(t.z),o=t.x.redSub(t.z).redMul(r),a=i.redMul(n),s=e.z.redMul(o.redAdd(a).redSqr()),c=e.x.redMul(o.redISub(a).redSqr());return this.curve.point(s,c)},c.prototype.mul=function(t){for(var e=t.clone(),r=this,n=this.curve.point(null,null),i=[];0!==e.cmpn(0);e.iushrn(1))i.push(e.andln(1));for(var o=i.length-1;o>=0;o--)0===i[o]?(r=r.diffAdd(n,this),n=n.dbl()):(n=r.diffAdd(n,this),r=r.dbl());return n},c.prototype.mulAdd=function(){throw new Error("Not supported on Montgomery curve")},c.prototype.jumlAdd=function(){throw new Error("Not supported on Montgomery curve")},c.prototype.eq=function(t){return 0===this.getX().cmp(t.getX())},c.prototype.normalize=function(){return this.x=this.x.redMul(this.z.redInvm()),this.z=this.curve.one,this},c.prototype.getX=function(){return this.normalize(),this.x.fromRed()}},5045:(t,e,r)=>{"use strict";var n=r(1970),i=r(7799),o=r(1679),a=r(3334),s=n.assert;function c(t){a.call(this,"short",t),this.a=new i(t.a,16).toRed(this.red),this.b=new i(t.b,16).toRed(this.red),this.tinv=this.two.redInvm(),this.zeroA=0===this.a.fromRed().cmpn(0),this.threeA=0===this.a.fromRed().sub(this.p).cmpn(-3),this.endo=this._getEndomorphism(t),this._endoWnafT1=new Array(4),this._endoWnafT2=new Array(4)}function u(t,e,r,n){a.BasePoint.call(this,t,"affine"),null===e&&null===r?(this.x=null,this.y=null,this.inf=!0):(this.x=new i(e,16),this.y=new i(r,16),n&&(this.x.forceRed(this.curve.red),this.y.forceRed(this.curve.red)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.inf=!1)}function f(t,e,r,n){a.BasePoint.call(this,t,"jacobian"),null===e&&null===r&&null===n?(this.x=this.curve.one,this.y=this.curve.one,this.z=new i(0)):(this.x=new i(e,16),this.y=new i(r,16),this.z=new i(n,16)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.zOne=this.z===this.curve.one}o(c,a),t.exports=c,c.prototype._getEndomorphism=function(t){if(this.zeroA&&this.g&&this.n&&1===this.p.modn(3)){var e,r;if(t.beta)e=new i(t.beta,16).toRed(this.red);else{var n=this._getEndoRoots(this.p);e=(e=n[0].cmp(n[1])<0?n[0]:n[1]).toRed(this.red)}if(t.lambda)r=new i(t.lambda,16);else{var o=this._getEndoRoots(this.n);0===this.g.mul(o[0]).x.cmp(this.g.x.redMul(e))?r=o[0]:(r=o[1],s(0===this.g.mul(r).x.cmp(this.g.x.redMul(e))))}return{beta:e,lambda:r,basis:t.basis?t.basis.map((function(t){return{a:new i(t.a,16),b:new i(t.b,16)}})):this._getEndoBasis(r)}}},c.prototype._getEndoRoots=function(t){var e=t===this.p?this.red:i.mont(t),r=new i(2).toRed(e).redInvm(),n=r.redNeg(),o=new i(3).toRed(e).redNeg().redSqrt().redMul(r);return[n.redAdd(o).fromRed(),n.redSub(o).fromRed()]},c.prototype._getEndoBasis=function(t){for(var e,r,n,o,a,s,c,u,f,l=this.n.ushrn(Math.floor(this.n.bitLength()/2)),h=t,p=this.n.clone(),d=new i(1),y=new i(0),b=new i(0),m=new i(1),v=0;0!==h.cmpn(0);){var g=p.div(h);u=p.sub(g.mul(h)),f=b.sub(g.mul(d));var _=m.sub(g.mul(y));if(!n&&u.cmp(l)<0)e=c.neg(),r=d,n=u.neg(),o=f;else if(n&&2==++v)break;c=u,p=h,h=u,b=d,d=f,m=y,y=_}a=u.neg(),s=f;var w=n.sqr().add(o.sqr());return a.sqr().add(s.sqr()).cmp(w)>=0&&(a=e,s=r),n.negative&&(n=n.neg(),o=o.neg()),a.negative&&(a=a.neg(),s=s.neg()),[{a:n,b:o},{a,b:s}]},c.prototype._endoSplit=function(t){var e=this.endo.basis,r=e[0],n=e[1],i=n.b.mul(t).divRound(this.n),o=r.b.neg().mul(t).divRound(this.n),a=i.mul(r.a),s=o.mul(n.a),c=i.mul(r.b),u=o.mul(n.b);return{k1:t.sub(a).sub(s),k2:c.add(u).neg()}},c.prototype.pointFromX=function(t,e){(t=new i(t,16)).red||(t=t.toRed(this.red));var r=t.redSqr().redMul(t).redIAdd(t.redMul(this.a)).redIAdd(this.b),n=r.redSqrt();if(0!==n.redSqr().redSub(r).cmp(this.zero))throw new Error("invalid point");var o=n.fromRed().isOdd();return(e&&!o||!e&&o)&&(n=n.redNeg()),this.point(t,n)},c.prototype.validate=function(t){if(t.inf)return!0;var e=t.x,r=t.y,n=this.a.redMul(e),i=e.redSqr().redMul(e).redIAdd(n).redIAdd(this.b);return 0===r.redSqr().redISub(i).cmpn(0)},c.prototype._endoWnafMulAdd=function(t,e,r){for(var n=this._endoWnafT1,i=this._endoWnafT2,o=0;o":""},u.prototype.isInfinity=function(){return this.inf},u.prototype.add=function(t){if(this.inf)return t;if(t.inf)return this;if(this.eq(t))return this.dbl();if(this.neg().eq(t))return this.curve.point(null,null);if(0===this.x.cmp(t.x))return this.curve.point(null,null);var e=this.y.redSub(t.y);0!==e.cmpn(0)&&(e=e.redMul(this.x.redSub(t.x).redInvm()));var r=e.redSqr().redISub(this.x).redISub(t.x),n=e.redMul(this.x.redSub(r)).redISub(this.y);return this.curve.point(r,n)},u.prototype.dbl=function(){if(this.inf)return this;var t=this.y.redAdd(this.y);if(0===t.cmpn(0))return this.curve.point(null,null);var e=this.curve.a,r=this.x.redSqr(),n=t.redInvm(),i=r.redAdd(r).redIAdd(r).redIAdd(e).redMul(n),o=i.redSqr().redISub(this.x.redAdd(this.x)),a=i.redMul(this.x.redSub(o)).redISub(this.y);return this.curve.point(o,a)},u.prototype.getX=function(){return this.x.fromRed()},u.prototype.getY=function(){return this.y.fromRed()},u.prototype.mul=function(t){return t=new i(t,16),this.isInfinity()?this:this._hasDoubles(t)?this.curve._fixedNafMul(this,t):this.curve.endo?this.curve._endoWnafMulAdd([this],[t]):this.curve._wnafMul(this,t)},u.prototype.mulAdd=function(t,e,r){var n=[this,e],i=[t,r];return this.curve.endo?this.curve._endoWnafMulAdd(n,i):this.curve._wnafMulAdd(1,n,i,2)},u.prototype.jmulAdd=function(t,e,r){var n=[this,e],i=[t,r];return this.curve.endo?this.curve._endoWnafMulAdd(n,i,!0):this.curve._wnafMulAdd(1,n,i,2,!0)},u.prototype.eq=function(t){return this===t||this.inf===t.inf&&(this.inf||0===this.x.cmp(t.x)&&0===this.y.cmp(t.y))},u.prototype.neg=function(t){if(this.inf)return this;var e=this.curve.point(this.x,this.y.redNeg());if(t&&this.precomputed){var r=this.precomputed,n=function(t){return t.neg()};e.precomputed={naf:r.naf&&{wnd:r.naf.wnd,points:r.naf.points.map(n)},doubles:r.doubles&&{step:r.doubles.step,points:r.doubles.points.map(n)}}}return e},u.prototype.toJ=function(){return this.inf?this.curve.jpoint(null,null,null):this.curve.jpoint(this.x,this.y,this.curve.one)},o(f,a.BasePoint),c.prototype.jpoint=function(t,e,r){return new f(this,t,e,r)},f.prototype.toP=function(){if(this.isInfinity())return this.curve.point(null,null);var t=this.z.redInvm(),e=t.redSqr(),r=this.x.redMul(e),n=this.y.redMul(e).redMul(t);return this.curve.point(r,n)},f.prototype.neg=function(){return this.curve.jpoint(this.x,this.y.redNeg(),this.z)},f.prototype.add=function(t){if(this.isInfinity())return t;if(t.isInfinity())return this;var e=t.z.redSqr(),r=this.z.redSqr(),n=this.x.redMul(e),i=t.x.redMul(r),o=this.y.redMul(e.redMul(t.z)),a=t.y.redMul(r.redMul(this.z)),s=n.redSub(i),c=o.redSub(a);if(0===s.cmpn(0))return 0!==c.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var u=s.redSqr(),f=u.redMul(s),l=n.redMul(u),h=c.redSqr().redIAdd(f).redISub(l).redISub(l),p=c.redMul(l.redISub(h)).redISub(o.redMul(f)),d=this.z.redMul(t.z).redMul(s);return this.curve.jpoint(h,p,d)},f.prototype.mixedAdd=function(t){if(this.isInfinity())return t.toJ();if(t.isInfinity())return this;var e=this.z.redSqr(),r=this.x,n=t.x.redMul(e),i=this.y,o=t.y.redMul(e).redMul(this.z),a=r.redSub(n),s=i.redSub(o);if(0===a.cmpn(0))return 0!==s.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var c=a.redSqr(),u=c.redMul(a),f=r.redMul(c),l=s.redSqr().redIAdd(u).redISub(f).redISub(f),h=s.redMul(f.redISub(l)).redISub(i.redMul(u)),p=this.z.redMul(a);return this.curve.jpoint(l,h,p)},f.prototype.dblp=function(t){if(0===t)return this;if(this.isInfinity())return this;if(!t)return this.dbl();var e;if(this.curve.zeroA||this.curve.threeA){var r=this;for(e=0;e=0)return!1;if(r.redIAdd(i),0===this.x.cmp(r))return!0}},f.prototype.inspect=function(){return this.isInfinity()?"":""},f.prototype.isInfinity=function(){return 0===this.z.cmpn(0)}},6379:(t,e,r)=>{"use strict";var n,i=e,o=r(2859),a=r(5803),s=r(1970).assert;function c(t){"short"===t.type?this.curve=new a.short(t):"edwards"===t.type?this.curve=new a.edwards(t):this.curve=new a.mont(t),this.g=this.curve.g,this.n=this.curve.n,this.hash=t.hash,s(this.g.validate(),"Invalid curve"),s(this.g.mul(this.n).isInfinity(),"Invalid curve, G*N != O")}function u(t,e){Object.defineProperty(i,t,{configurable:!0,enumerable:!0,get:function(){var r=new c(e);return Object.defineProperty(i,t,{configurable:!0,enumerable:!0,value:r}),r}})}i.PresetCurve=c,u("p192",{type:"short",prime:"p192",p:"ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff",a:"ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc",b:"64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1",n:"ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831",hash:o.sha256,gRed:!1,g:["188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012","07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811"]}),u("p224",{type:"short",prime:"p224",p:"ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001",a:"ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe",b:"b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4",n:"ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d",hash:o.sha256,gRed:!1,g:["b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21","bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34"]}),u("p256",{type:"short",prime:null,p:"ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff",a:"ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc",b:"5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b",n:"ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551",hash:o.sha256,gRed:!1,g:["6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296","4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5"]}),u("p384",{type:"short",prime:null,p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe ffffffff 00000000 00000000 ffffffff",a:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe ffffffff 00000000 00000000 fffffffc",b:"b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f 5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef",n:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 f4372ddf 581a0db2 48b0a77a ecec196a ccc52973",hash:o.sha384,gRed:!1,g:["aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 5502f25d bf55296c 3a545e38 72760ab7","3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 0a60b1ce 1d7e819d 7a431d7c 90ea0e5f"]}),u("p521",{type:"short",prime:null,p:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff",a:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffc",b:"00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b 99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd 3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00",n:"000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409",hash:o.sha512,gRed:!1,g:["000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66","00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 3fad0761 353c7086 a272c240 88be9476 9fd16650"]}),u("curve25519",{type:"mont",prime:"p25519",p:"7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed",a:"76d06",b:"1",n:"1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed",hash:o.sha256,gRed:!1,g:["9"]}),u("ed25519",{type:"edwards",prime:"p25519",p:"7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed",a:"-1",c:"1",d:"52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3",n:"1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed",hash:o.sha256,gRed:!1,g:["216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a","6666666666666666666666666666666666666666666666666666666666666658"]});try{n=r(5586)}catch(t){n=void 0}u("secp256k1",{type:"short",prime:"k256",p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f",a:"0",b:"7",n:"ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141",h:"1",hash:o.sha256,beta:"7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee",lambda:"5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72",basis:[{a:"3086d221a7d46bcde86c90e49284eb15",b:"-e4437ed6010e88286f547fa90abfe4c3"},{a:"114ca50f7a8e2f3f657c1108d9d44cfd8",b:"3086d221a7d46bcde86c90e49284eb15"}],gRed:!1,g:["79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",n]})},7416:(t,e,r)=>{"use strict";function n(t){return n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i=r(7799),o=r(6934),a=r(1970),s=r(6379),c=r(8904),u=a.assert,f=r(3643),l=r(3686);function h(t){if(!(this instanceof h))return new h(t);"string"==typeof t&&(u(Object.prototype.hasOwnProperty.call(s,t),"Unknown curve "+t),t=s[t]),t instanceof s.PresetCurve&&(t={curve:t}),this.curve=t.curve.curve,this.n=this.curve.n,this.nh=this.n.ushrn(1),this.g=this.curve.g,this.g=t.curve.g,this.g.precompute(t.curve.n.bitLength()+1),this.hash=t.hash||t.curve.hash}t.exports=h,h.prototype.keyPair=function(t){return new f(this,t)},h.prototype.keyFromPrivate=function(t,e){return f.fromPrivate(this,t,e)},h.prototype.keyFromPublic=function(t,e){return f.fromPublic(this,t,e)},h.prototype.genKeyPair=function(t){t||(t={});for(var e=new o({hash:this.hash,pers:t.pers,persEnc:t.persEnc||"utf8",entropy:t.entropy||c(this.hash.hmacStrength),entropyEnc:t.entropy&&t.entropyEnc||"utf8",nonce:this.n.toArray()}),r=this.n.byteLength(),n=this.n.sub(new i(2));;){var a=new i(e.generate(r));if(!(a.cmp(n)>0))return a.iaddn(1),this.keyFromPrivate(a)}},h.prototype._truncateToN=function(t,e){var r=8*t.byteLength()-this.n.bitLength();return r>0&&(t=t.ushrn(r)),!e&&t.cmp(this.n)>=0?t.sub(this.n):t},h.prototype.sign=function(t,e,r,a){"object"===n(r)&&(a=r,r=null),a||(a={}),e=this.keyFromPrivate(e,r),t=this._truncateToN(new i(t,16));for(var s=this.n.byteLength(),c=e.getPrivate().toArray("be",s),u=t.toArray("be",s),f=new o({hash:this.hash,entropy:c,nonce:u,pers:a.pers,persEnc:a.persEnc||"utf8"}),h=this.n.sub(new i(1)),p=0;;p++){var d=a.k?a.k(p):new i(f.generate(this.n.byteLength()));if(!((d=this._truncateToN(d,!0)).cmpn(1)<=0||d.cmp(h)>=0)){var y=this.g.mul(d);if(!y.isInfinity()){var b=y.getX(),m=b.umod(this.n);if(0!==m.cmpn(0)){var v=d.invm(this.n).mul(m.mul(e.getPrivate()).iadd(t));if(0!==(v=v.umod(this.n)).cmpn(0)){var g=(y.getY().isOdd()?1:0)|(0!==b.cmp(m)?2:0);return a.canonical&&v.cmp(this.nh)>0&&(v=this.n.sub(v),g^=1),new l({r:m,s:v,recoveryParam:g})}}}}}},h.prototype.verify=function(t,e,r,n){t=this._truncateToN(new i(t,16)),r=this.keyFromPublic(r,n);var o=(e=new l(e,"hex")).r,a=e.s;if(o.cmpn(1)<0||o.cmp(this.n)>=0)return!1;if(a.cmpn(1)<0||a.cmp(this.n)>=0)return!1;var s,c=a.invm(this.n),u=c.mul(t).umod(this.n),f=c.mul(o).umod(this.n);return this.curve._maxwellTrick?!(s=this.g.jmulAdd(u,r.getPublic(),f)).isInfinity()&&s.eqXToP(o):!(s=this.g.mulAdd(u,r.getPublic(),f)).isInfinity()&&0===s.getX().umod(this.n).cmp(o)},h.prototype.recoverPubKey=function(t,e,r,n){u((3&r)===r,"The recovery param is more than two bits"),e=new l(e,n);var o=this.n,a=new i(t),s=e.r,c=e.s,f=1&r,h=r>>1;if(s.cmp(this.curve.p.umod(this.curve.n))>=0&&h)throw new Error("Unable to find sencond key candinate");s=h?this.curve.pointFromX(s.add(this.curve.n),f):this.curve.pointFromX(s,f);var p=e.r.invm(o),d=o.sub(a).mul(p).umod(o),y=c.mul(p).umod(o);return this.g.mulAdd(d,s,y)},h.prototype.getKeyRecoveryParam=function(t,e,r,n){if(null!==(e=new l(e,n)).recoveryParam)return e.recoveryParam;for(var i=0;i<4;i++){var o;try{o=this.recoverPubKey(t,e,i)}catch(t){continue}if(o.eq(r))return i}throw new Error("Unable to find valid recovery factor")}},3643:(t,e,r)=>{"use strict";var n=r(7799),i=r(1970).assert;function o(t,e){this.ec=t,this.priv=null,this.pub=null,e.priv&&this._importPrivate(e.priv,e.privEnc),e.pub&&this._importPublic(e.pub,e.pubEnc)}t.exports=o,o.fromPublic=function(t,e,r){return e instanceof o?e:new o(t,{pub:e,pubEnc:r})},o.fromPrivate=function(t,e,r){return e instanceof o?e:new o(t,{priv:e,privEnc:r})},o.prototype.validate=function(){var t=this.getPublic();return t.isInfinity()?{result:!1,reason:"Invalid public key"}:t.validate()?t.mul(this.ec.curve.n).isInfinity()?{result:!0,reason:null}:{result:!1,reason:"Public key * N != O"}:{result:!1,reason:"Public key is not a point"}},o.prototype.getPublic=function(t,e){return"string"==typeof t&&(e=t,t=null),this.pub||(this.pub=this.ec.g.mul(this.priv)),e?this.pub.encode(e,t):this.pub},o.prototype.getPrivate=function(t){return"hex"===t?this.priv.toString(16,2):this.priv},o.prototype._importPrivate=function(t,e){this.priv=new n(t,e||16),this.priv=this.priv.umod(this.ec.curve.n)},o.prototype._importPublic=function(t,e){if(t.x||t.y)return"mont"===this.ec.curve.type?i(t.x,"Need x coordinate"):"short"!==this.ec.curve.type&&"edwards"!==this.ec.curve.type||i(t.x&&t.y,"Need both x and y coordinate"),void(this.pub=this.ec.curve.point(t.x,t.y));this.pub=this.ec.curve.decodePoint(t,e)},o.prototype.derive=function(t){return t.validate()||i(t.validate(),"public point not validated"),t.mul(this.priv).getX()},o.prototype.sign=function(t,e,r){return this.ec.sign(t,this,e,r)},o.prototype.verify=function(t,e){return this.ec.verify(t,e,this)},o.prototype.inspect=function(){return""}},3686:(t,e,r)=>{"use strict";var n=r(7799),i=r(1970),o=i.assert;function a(t,e){if(t instanceof a)return t;this._importDER(t,e)||(o(t.r&&t.s,"Signature without r or s"),this.r=new n(t.r,16),this.s=new n(t.s,16),void 0===t.recoveryParam?this.recoveryParam=null:this.recoveryParam=t.recoveryParam)}function s(){this.place=0}function c(t,e){var r=t[e.place++];if(!(128&r))return r;var n=15&r;if(0===n||n>4)return!1;for(var i=0,o=0,a=e.place;o>>=0;return!(i<=127)&&(e.place=a,i)}function u(t){for(var e=0,r=t.length-1;!t[e]&&!(128&t[e+1])&&e>>3);for(t.push(128|r);--r;)t.push(e>>>(r<<3)&255);t.push(e)}}t.exports=a,a.prototype._importDER=function(t,e){t=i.toArray(t,e);var r=new s;if(48!==t[r.place++])return!1;var o=c(t,r);if(!1===o)return!1;if(o+r.place!==t.length)return!1;if(2!==t[r.place++])return!1;var a=c(t,r);if(!1===a)return!1;var u=t.slice(r.place,a+r.place);if(r.place+=a,2!==t[r.place++])return!1;var f=c(t,r);if(!1===f)return!1;if(t.length!==f+r.place)return!1;var l=t.slice(r.place,f+r.place);if(0===u[0]){if(!(128&u[1]))return!1;u=u.slice(1)}if(0===l[0]){if(!(128&l[1]))return!1;l=l.slice(1)}return this.r=new n(u),this.s=new n(l),this.recoveryParam=null,!0},a.prototype.toDER=function(t){var e=this.r.toArray(),r=this.s.toArray();for(128&e[0]&&(e=[0].concat(e)),128&r[0]&&(r=[0].concat(r)),e=u(e),r=u(r);!(r[0]||128&r[1]);)r=r.slice(1);var n=[2];f(n,e.length),(n=n.concat(e)).push(2),f(n,r.length);var o=n.concat(r),a=[48];return f(a,o.length),a=a.concat(o),i.encode(a,t)}},4919:(t,e,r)=>{"use strict";var n=r(2859),i=r(6379),o=r(1970),a=o.assert,s=o.parseBytes,c=r(208),u=r(8433);function f(t){if(a("ed25519"===t,"only tested with ed25519 so far"),!(this instanceof f))return new f(t);t=i[t].curve,this.curve=t,this.g=t.g,this.g.precompute(t.n.bitLength()+1),this.pointClass=t.point().constructor,this.encodingLength=Math.ceil(t.n.bitLength()/8),this.hash=n.sha512}t.exports=f,f.prototype.sign=function(t,e){t=s(t);var r=this.keyFromSecret(e),n=this.hashInt(r.messagePrefix(),t),i=this.g.mul(n),o=this.encodePoint(i),a=this.hashInt(o,r.pubBytes(),t).mul(r.priv()),c=n.add(a).umod(this.curve.n);return this.makeSignature({R:i,S:c,Rencoded:o})},f.prototype.verify=function(t,e,r){t=s(t),e=this.makeSignature(e);var n=this.keyFromPublic(r),i=this.hashInt(e.Rencoded(),n.pubBytes(),t),o=this.g.mul(e.S());return e.R().add(n.pub().mul(i)).eq(o)},f.prototype.hashInt=function(){for(var t=this.hash(),e=0;e{"use strict";var n=r(1970),i=n.assert,o=n.parseBytes,a=n.cachedProperty;function s(t,e){this.eddsa=t,this._secret=o(e.secret),t.isPoint(e.pub)?this._pub=e.pub:this._pubBytes=o(e.pub)}s.fromPublic=function(t,e){return e instanceof s?e:new s(t,{pub:e})},s.fromSecret=function(t,e){return e instanceof s?e:new s(t,{secret:e})},s.prototype.secret=function(){return this._secret},a(s,"pubBytes",(function(){return this.eddsa.encodePoint(this.pub())})),a(s,"pub",(function(){return this._pubBytes?this.eddsa.decodePoint(this._pubBytes):this.eddsa.g.mul(this.priv())})),a(s,"privBytes",(function(){var t=this.eddsa,e=this.hash(),r=t.encodingLength-1,n=e.slice(0,t.encodingLength);return n[0]&=248,n[r]&=127,n[r]|=64,n})),a(s,"priv",(function(){return this.eddsa.decodeInt(this.privBytes())})),a(s,"hash",(function(){return this.eddsa.hash().update(this.secret()).digest()})),a(s,"messagePrefix",(function(){return this.hash().slice(this.eddsa.encodingLength)})),s.prototype.sign=function(t){return i(this._secret,"KeyPair can only verify"),this.eddsa.sign(t,this)},s.prototype.verify=function(t,e){return this.eddsa.verify(t,e,this)},s.prototype.getSecret=function(t){return i(this._secret,"KeyPair is public only"),n.encode(this.secret(),t)},s.prototype.getPublic=function(t){return n.encode(this.pubBytes(),t)},t.exports=s},8433:(t,e,r)=>{"use strict";function n(t){return n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},n(t)}var i=r(7799),o=r(1970),a=o.assert,s=o.cachedProperty,c=o.parseBytes;function u(t,e){this.eddsa=t,"object"!==n(e)&&(e=c(e)),Array.isArray(e)&&(e={R:e.slice(0,t.encodingLength),S:e.slice(t.encodingLength)}),a(e.R&&e.S,"Signature without R or S"),t.isPoint(e.R)&&(this._R=e.R),e.S instanceof i&&(this._S=e.S),this._Rencoded=Array.isArray(e.R)?e.R:e.Rencoded,this._Sencoded=Array.isArray(e.S)?e.S:e.Sencoded}s(u,"S",(function(){return this.eddsa.decodeInt(this.Sencoded())})),s(u,"R",(function(){return this.eddsa.decodePoint(this.Rencoded())})),s(u,"Rencoded",(function(){return this.eddsa.encodePoint(this.R())})),s(u,"Sencoded",(function(){return this.eddsa.encodeInt(this.S())})),u.prototype.toBytes=function(){return this.Rencoded().concat(this.Sencoded())},u.prototype.toHex=function(){return 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i=!1;for(;e>>=0)&&t<256)&&(n=mt[t],n)?n:(r=gt.fromBits(t,(0|t)<0?-1:0,!0),i&&(mt[t]=r),r):(i=-128<=(t|=0)&&t<128)&&(n=bt[t],n)?n:(r=gt.fromBits(t,t<0?-1:0,!1),i&&(bt[t]=r),r)}static fromNumber(t,e){if(isNaN(t))return e?gt.UZERO:gt.ZERO;if(e){if(t<0)return gt.UZERO;if(t>=dt)return gt.MAX_UNSIGNED_VALUE}else{if(t<=-yt)return gt.MIN_VALUE;if(t+1>=yt)return gt.MAX_VALUE}return t<0?gt.fromNumber(-t,e).neg():gt.fromBits(t%pt|0,t/pt|0,e)}static fromBigInt(t,e){return gt.fromString(t.toString(),e)}static _fromString(t,e,r){if(0===t.length)throw new q("empty string");if(r<2||360)throw new q("interior hyphen");if(0===n)return gt._fromString(t.substring(1),e,r).neg();const i=gt.fromNumber(Math.pow(r,8));let o=gt.ZERO;for(let e=0;e>>16,r=65535&this.high,n=this.low>>>16,i=65535&this.low,o=t.high>>>16,a=65535&t.high,s=t.low>>>16;let c=0,u=0,f=0,l=0;return 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gt.UZERO;if(t.gt(this.shru(1)))return gt.UONE;n=gt.UZERO}else{if(this.eq(gt.MIN_VALUE))return t.eq(gt.ONE)||t.eq(gt.NEG_ONE)?gt.MIN_VALUE:t.eq(gt.MIN_VALUE)?gt.ONE:(e=this.shr(1).div(t).shl(1),e.eq(gt.ZERO)?t.isNegative()?gt.ONE:gt.NEG_ONE:(r=this.sub(t.mul(e)),n=e.add(r.div(t)),n));if(t.eq(gt.MIN_VALUE))return this.unsigned?gt.UZERO:gt.ZERO;if(this.isNegative())return t.isNegative()?this.neg().div(t.neg()):this.neg().div(t).neg();if(t.isNegative())return this.div(t.neg()).neg();n=gt.ZERO}for(r=this;r.gte(t);){e=Math.max(1,Math.floor(r.toNumber()/t.toNumber()));const i=Math.ceil(Math.log(e)/Math.LN2),o=i<=48?1:Math.pow(2,i-48);let a=gt.fromNumber(e),s=a.mul(t);for(;s.isNegative()||s.gt(r);)e-=o,a=gt.fromNumber(e,this.unsigned),s=a.mul(t);a.isZero()&&(a=gt.ONE),n=n.add(a),r=r.sub(s)}return n}div(t){return this.divide(t)}equals(t){return gt.isLong(t)||(t=gt.fromValue(t)),(this.unsigned===t.unsigned||this.high>>>31!=1||t.high>>>31!=1)&&this.high===t.high&&this.low===t.low}eq(t){return this.equals(t)}getHighBits(){return this.high}getHighBitsUnsigned(){return this.high>>>0}getLowBits(){return this.low}getLowBitsUnsigned(){return this.low>>>0}getNumBitsAbs(){if(this.isNegative())return this.eq(gt.MIN_VALUE)?64:this.neg().getNumBitsAbs();const t=0!==this.high?this.high:this.low;let e;for(e=31;e>0&&!(t&1<0}gt(t){return this.greaterThan(t)}greaterThanOrEqual(t){return this.comp(t)>=0}gte(t){return this.greaterThanOrEqual(t)}ge(t){return this.greaterThanOrEqual(t)}isEven(){return!(1&this.low)}isNegative(){return!this.unsigned&&this.high<0}isOdd(){return!(1&~this.low)}isPositive(){return this.unsigned||this.high>=0}isZero(){return 0===this.high&&0===this.low}lessThan(t){return this.comp(t)<0}lt(t){return this.lessThan(t)}lessThanOrEqual(t){return this.comp(t)<=0}lte(t){return this.lessThanOrEqual(t)}modulo(t){if(gt.isLong(t)||(t=gt.fromValue(t)),ht){const e=(this.unsigned?ht.rem_u:ht.rem_s)(this.low,this.high,t.low,t.high);return gt.fromBits(e,ht.get_high(),this.unsigned)}return this.sub(this.div(t).mul(t))}mod(t){return this.modulo(t)}rem(t){return this.modulo(t)}multiply(t){if(this.isZero())return gt.ZERO;if(gt.isLong(t)||(t=gt.fromValue(t)),ht){const e=ht.mul(this.low,this.high,t.low,t.high);return gt.fromBits(e,ht.get_high(),this.unsigned)}if(t.isZero())return gt.ZERO;if(this.eq(gt.MIN_VALUE))return t.isOdd()?gt.MIN_VALUE:gt.ZERO;if(t.eq(gt.MIN_VALUE))return this.isOdd()?gt.MIN_VALUE:gt.ZERO;if(this.isNegative())return t.isNegative()?this.neg().mul(t.neg()):this.neg().mul(t).neg();if(t.isNegative())return this.mul(t.neg()).neg();if(this.lt(gt.TWO_PWR_24)&&t.lt(gt.TWO_PWR_24))return gt.fromNumber(this.toNumber()*t.toNumber(),this.unsigned);const e=this.high>>>16,r=65535&this.high,n=this.low>>>16,i=65535&this.low,o=t.high>>>16,a=65535&t.high,s=t.low>>>16,c=65535&t.low;let u=0,f=0,l=0,h=0;return h+=i*c,l+=h>>>16,h&=65535,l+=n*c,f+=l>>>16,l&=65535,l+=i*s,f+=l>>>16,l&=65535,f+=r*c,u+=f>>>16,f&=65535,f+=n*s,u+=f>>>16,f&=65535,f+=i*a,u+=f>>>16,f&=65535,u+=e*c+r*s+n*a+i*o,u&=65535,gt.fromBits(l<<16|h,u<<16|f,this.unsigned)}mul(t){return this.multiply(t)}negate(){return!this.unsigned&&this.eq(gt.MIN_VALUE)?gt.MIN_VALUE:this.not().add(gt.ONE)}neg(){return this.negate()}not(){return gt.fromBits(~this.low,~this.high,this.unsigned)}notEquals(t){return!this.equals(t)}neq(t){return this.notEquals(t)}ne(t){return this.notEquals(t)}or(t){return gt.isLong(t)||(t=gt.fromValue(t)),gt.fromBits(this.low|t.low,this.high|t.high,this.unsigned)}shiftLeft(t){return gt.isLong(t)&&(t=t.toInt()),0==(t&=63)?this:t<32?gt.fromBits(this.low<>>32-t,this.unsigned):gt.fromBits(0,this.low<>>t|this.high<<32-t,this.high>>t,this.unsigned):gt.fromBits(this.high>>t-32,this.high>=0?0:-1,this.unsigned)}shr(t){return this.shiftRight(t)}shiftRightUnsigned(t){if(gt.isLong(t)&&(t=t.toInt()),0==(t&=63))return this;{const e=this.high;if(t<32){const r=this.low;return gt.fromBits(r>>>t|e<<32-t,e>>>t,this.unsigned)}return 32===t?gt.fromBits(e,0,this.unsigned):gt.fromBits(e>>>t-32,0,this.unsigned)}}shr_u(t){return this.shiftRightUnsigned(t)}shru(t){return this.shiftRightUnsigned(t)}subtract(t){return gt.isLong(t)||(t=gt.fromValue(t)),this.add(t.neg())}sub(t){return this.subtract(t)}toInt(){return this.unsigned?this.low>>>0:this.low}toNumber(){return this.unsigned?(this.high>>>0)*pt+(this.low>>>0):this.high*pt+(this.low>>>0)}toBigInt(){return BigInt(this.toString())}toBytes(t){return t?this.toBytesLE():this.toBytesBE()}toBytesLE(){const t=this.high,e=this.low;return[255&e,e>>>8&255,e>>>16&255,e>>>24,255&t,t>>>8&255,t>>>16&255,t>>>24]}toBytesBE(){const t=this.high,e=this.low;return[t>>>24,t>>>16&255,t>>>8&255,255&t,e>>>24,e>>>16&255,e>>>8&255,255&e]}toSigned(){return this.unsigned?gt.fromBits(this.low,this.high,!1):this}toString(t){if((t=t||10)<2||36>>0).toString(t);if(r=i,r.isZero())return o+n;for(;o.length<6;)o="0"+o;n=""+o+n}}toUnsigned(){return this.unsigned?this:gt.fromBits(this.low,this.high,!0)}xor(t){return gt.isLong(t)||(t=gt.fromValue(t)),gt.fromBits(this.low^t.low,this.high^t.high,this.unsigned)}eqz(){return this.isZero()}le(t){return this.lessThanOrEqual(t)}toExtendedJSON(t){return t&&t.relaxed?this.toNumber():{$numberLong:this.toString()}}static fromExtendedJSON(t,e){const{useBigInt64:r=!1,relaxed:n=!0}={...e};if(t.$numberLong.length>20)throw new q("$numberLong string is too long");if(!vt.test(t.$numberLong))throw new q(`$numberLong string "${t.$numberLong}" is in an invalid format`);if(r){const e=BigInt(t.$numberLong);return BigInt.asIntN(64,e)}const i=gt.fromString(t.$numberLong);return n?i.toNumber():i}inspect(t,e,r){return r??=u,`new Long(${r(this.toString(),e)}${this.unsigned?`, ${r(this.unsigned,e)}`:""})`}}gt.TWO_PWR_24=gt.fromInt(1<<24),gt.MAX_UNSIGNED_VALUE=gt.fromBits(-1,-1,!0),gt.ZERO=gt.fromInt(0),gt.UZERO=gt.fromInt(0,!0),gt.ONE=gt.fromInt(1),gt.UONE=gt.fromInt(1,!0),gt.NEG_ONE=gt.fromInt(-1),gt.MAX_VALUE=gt.fromBits(-1,2147483647,!1),gt.MIN_VALUE=gt.fromBits(0,-2147483648,!1);const _t=/^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/,wt=/^(\+|-)?(Infinity|inf)$/i,St=/^(\+|-)?NaN$/i,Ot=6111,jt=-6176,$t=rt.fromNumberArray([124,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0].reverse()),At=rt.fromNumberArray([248,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0].reverse()),Et=rt.fromNumberArray([120,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0].reverse()),xt=/^([-+])?(\d+)?$/;function Pt(t){return!isNaN(parseInt(t,10))}function kt(t){const e=gt.fromNumber(1e9);let r=gt.fromNumber(0);if(!(t.parts[0]||t.parts[1]||t.parts[2]||t.parts[3]))return{quotient:t,rem:r};for(let n=0;n<=3;n++)r=r.shiftLeft(32),r=r.add(new gt(t.parts[n],0)),t.parts[n]=r.div(e).low,r=r.modulo(e);return{quotient:t,rem:r}}function Mt(t,e){throw new q(`"${t}" is not a valid Decimal128 string - ${e}`)}class It extends nt{get _bsontype(){return"Decimal128"}constructor(t){if(super(),"string"==typeof t)this.bytes=It.fromString(t).bytes;else{if(!o(t))throw new q("Decimal128 must take a Buffer or string");if(16!==t.byteLength)throw new q("Decimal128 must take a Buffer of 16 bytes");this.bytes=t}}static fromString(t){return It._fromString(t,{allowRounding:!1})}static fromStringWithRounding(t){return It._fromString(t,{allowRounding:!0})}static _fromString(t,e){let r=!1,n=!1,i=!1,o=!1,a=0,s=0,c=0,u=0,f=0;const l=[0];let h=0,p=0,d=0,y=0,b=new gt(0,0),m=new gt(0,0),v=0,g=0;if(t.length>=7e3)throw new q(t+" not a valid Decimal128 string");const _=t.match(_t),w=t.match(wt),S=t.match(St);if(!_&&!w&&!S||0===t.length)throw new q(t+" not a valid Decimal128 string");if(_){const e=_[2],r=_[4],n=_[5],i=_[6];r&&void 0===i&&Mt(t,"missing exponent power"),r&&void 0===e&&Mt(t,"missing exponent base"),void 0===r&&(n||i)&&Mt(t,"missing e before exponent")}if("+"!==t[g]&&"-"!==t[g]||(n=!0,r="-"===t[g++]),!Pt(t[g])&&"."!==t[g]){if("i"===t[g]||"I"===t[g])return new It(r?At:Et);if("N"===t[g])return new It($t)}for(;Pt(t[g])||"."===t[g];)"."!==t[g]?(h<34&&("0"!==t[g]||o)&&(o||(f=s),o=!0,l[p++]=parseInt(t[g],10),h+=1),o&&(c+=1),i&&(u+=1),s+=1,g+=1):(i&&Mt(t,"contains multiple periods"),i=!0,g+=1);if(i&&!s)throw new q(t+" not a valid Decimal128 string");if("e"===t[g]||"E"===t[g]){const e=t.substr(++g).match(xt);if(!e||!e[2])return new It($t);y=parseInt(e[0],10),g+=e[0].length}if(t[g])return new It($t);if(h){if(d=h-1,a=c,1!==a)for(;"0"===t[f+a-1+Number(n)+Number(i)];)a-=1}else l[0]=0,c=1,h=1,a=0;for(y<=u&&u>y+16384?y=jt:y-=u;y>Ot;){if(d+=1,d>=34){if(0===a){y=Ot;break}Mt(t,"overflow")}y-=1}if(e.allowRounding){for(;y=5&&(a=1,5===o)){a=l[d]%2==1?1:0;for(let r=f+d+2;r=0&&++l[t]>9;t--)if(l[t]=0,0===t){if(!(y>>0,n=e.high>>>0;return r>>0>>0}(O.low,m)&&(O.high=O.high.add(gt.fromNumber(1))),v=y+6176;const j={low:gt.fromNumber(0),high:gt.fromNumber(0)};O.high.shiftRightUnsigned(49).and(gt.fromNumber(1)).equals(gt.fromNumber(1))?(j.high=j.high.or(gt.fromNumber(3).shiftLeft(61)),j.high=j.high.or(gt.fromNumber(v).and(gt.fromNumber(16383).shiftLeft(47))),j.high=j.high.or(O.high.and(gt.fromNumber(0x7fffffffffff)))):(j.high=j.high.or(gt.fromNumber(16383&v).shiftLeft(49)),j.high=j.high.or(O.high.and(gt.fromNumber(562949953421311)))),j.low=O.low,r&&(j.high=j.high.or(gt.fromString("9223372036854775808")));const $=rt.allocateUnsafe(16);return g=0,$[g++]=255&j.low.low,$[g++]=j.low.low>>8&255,$[g++]=j.low.low>>16&255,$[g++]=j.low.low>>24&255,$[g++]=255&j.low.high,$[g++]=j.low.high>>8&255,$[g++]=j.low.high>>16&255,$[g++]=j.low.high>>24&255,$[g++]=255&j.high.low,$[g++]=j.high.low>>8&255,$[g++]=j.high.low>>16&255,$[g++]=j.high.low>>24&255,$[g++]=255&j.high.high,$[g++]=j.high.high>>8&255,$[g++]=j.high.high>>16&255,$[g++]=j.high.high>>24&255,new It($)}toString(){let t,e=0;const r=new Array(36);for(let t=0;t>26&31;if(y>>3==3){if(30===y)return u.join("")+"Infinity";if(31===y)return"NaN";t=d>>15&16383,n=8+(d>>14&1)}else n=d>>14&7,t=d>>17&16383;const b=t-6176;if(c.parts[0]=(16383&d)+((15&n)<<14),c.parts[1]=p,c.parts[2]=h,c.parts[3]=l,0===c.parts[0]&&0===c.parts[1]&&0===c.parts[2]&&0===c.parts[3])s=!0;else for(o=3;o>=0;o--){let t=0;const e=kt(c);if(c=e.quotient,t=e.rem.low,t)for(i=8;i>=0;i--)r[9*o+i]=t%10,t=Math.floor(t/10)}if(s)e=1,r[a]=0;else for(e=36;!r[a];)e-=1,a+=1;const m=e-1+b;if(m>=34||m<=-7||b>0){if(e>34)return u.push("0"),b>0?u.push(`E+${b}`):b<0&&u.push(`E${b}`),u.join("");u.push(`${r[a++]}`),e-=1,e&&u.push(".");for(let t=0;t0?u.push(`+${m}`):u.push(`${m}`)}else if(b>=0)for(let t=0;t0)for(let e=0;er)throw new q(`Input: '${t}' is smaller than the minimum value for Int32`);if(!Number.isSafeInteger(r))throw new q(`Input: '${t}' is not a safe integer`);if(r.toString()!==e)throw new q(`Input: '${t}' is not a valid Int32 string`);return new Tt(r)}valueOf(){return this.value}toString(t){return this.value.toString(t)}toJSON(){return this.value}toExtendedJSON(t){return t&&(t.relaxed||t.legacy)?this.value:{$numberInt:this.value.toString()}}static fromExtendedJSON(t,e){return e&&e.relaxed?parseInt(t.$numberInt,10):new Tt(t.$numberInt)}inspect(t,e,r){return r??=u,`new Int32(${r(this.value,e)})`}}class Rt extends nt{get _bsontype(){return"MaxKey"}toExtendedJSON(){return{$maxKey:1}}static fromExtendedJSON(){return new Rt}inspect(){return"new MaxKey()"}}class Nt extends nt{get _bsontype(){return"MinKey"}toExtendedJSON(){return{$minKey:1}}static fromExtendedJSON(){return new Nt}inspect(){return"new MinKey()"}}const Dt=new Float64Array(1),Lt=new Uint8Array(Dt.buffer,0,8);Dt[0]=-1;const Ut=0===Lt[7],Ct={getNonnegativeInt32LE(t,e){if(t[e+3]>127)throw new RangeError(`Size cannot be negative at offset: ${e}`);return t[e]|t[e+1]<<8|t[e+2]<<16|t[e+3]<<24},getInt32LE:(t,e)=>t[e]|t[e+1]<<8|t[e+2]<<16|t[e+3]<<24,getUint32LE:(t,e)=>t[e]+256*t[e+1]+65536*t[e+2]+16777216*t[e+3],getUint32BE:(t,e)=>t[e+3]+256*t[e+2]+65536*t[e+1]+16777216*t[e],getBigInt64LE(t,e){const r=Ct.getUint32LE(t,e),n=Ct.getUint32LE(t,e+4);return(BigInt(n)<(Lt[7]=t[e],Lt[6]=t[e+1],Lt[5]=t[e+2],Lt[4]=t[e+3],Lt[3]=t[e+4],Lt[2]=t[e+5],Lt[1]=t[e+6],Lt[0]=t[e+7],Dt[0]):(t,e)=>(Lt[0]=t[e],Lt[1]=t[e+1],Lt[2]=t[e+2],Lt[3]=t[e+3],Lt[4]=t[e+4],Lt[5]=t[e+5],Lt[6]=t[e+6],Lt[7]=t[e+7],Dt[0]),setInt32BE:(t,e,r)=>(t[e+3]=r,r>>>=8,t[e+2]=r,r>>>=8,t[e+1]=r,r>>>=8,t[e]=r,4),setInt32LE:(t,e,r)=>(t[e]=r,r>>>=8,t[e+1]=r,r>>>=8,t[e+2]=r,r>>>=8,t[e+3]=r,4),setBigInt64LE(t,e,r){const n=BigInt(4294967295);let i=Number(r&n);t[e]=i,i>>=8,t[e+1]=i,i>>=8,t[e+2]=i,i>>=8,t[e+3]=i;let o=Number(r>>BigInt(32)&n);return t[e+4]=o,o>>=8,t[e+5]=o,o>>=8,t[e+6]=o,o>>=8,t[e+7]=o,8},setFloat64LE:Ut?(t,e,r)=>(Dt[0]=r,t[e]=Lt[7],t[e+1]=Lt[6],t[e+2]=Lt[5],t[e+3]=Lt[4],t[e+4]=Lt[3],t[e+5]=Lt[2],t[e+6]=Lt[1],t[e+7]=Lt[0],8):(t,e,r)=>(Dt[0]=r,t[e]=Lt[0],t[e+1]=Lt[1],t[e+2]=Lt[2],t[e+3]=Lt[3],t[e+4]=Lt[4],t[e+5]=Lt[5],t[e+6]=Lt[6],t[e+7]=Lt[7],8)},qt=new RegExp("^[0-9a-fA-F]{24}$");let Ft=null;class Vt extends nt{get _bsontype(){return"ObjectId"}constructor(t){let e;if(super(),"object"==typeof t&&t&&"id"in t){if("string"!=typeof t.id&&!ArrayBuffer.isView(t.id))throw new q("Argument passed in must have an id that is of type string or Buffer");e="toHexString"in t&&"function"==typeof t.toHexString?rt.fromHex(t.toHexString()):t.id}else e=t;if(null==e||"number"==typeof e)this.buffer=Vt.generate("number"==typeof e?e:void 0);else if(ArrayBuffer.isView(e)&&12===e.byteLength)this.buffer=rt.toLocalBufferType(e);else{if("string"!=typeof e)throw new q("Argument passed in does not match the accepted types");if(24!==e.length||!qt.test(e))throw new q("input must be a 24 character hex string, 12 byte Uint8Array, or an integer");this.buffer=rt.fromHex(e)}Vt.cacheHexString&&(this.__id=rt.toHex(this.id))}get id(){return this.buffer}set id(t){this.buffer=t,Vt.cacheHexString&&(this.__id=rt.toHex(t))}toHexString(){if(Vt.cacheHexString&&this.__id)return this.__id;const t=rt.toHex(this.id);return Vt.cacheHexString&&!this.__id&&(this.__id=t),t}static getInc(){return Vt.index=(Vt.index+1)%16777215}static generate(t){"number"!=typeof t&&(t=Math.floor(Date.now()/1e3));const e=Vt.getInc(),r=rt.allocateUnsafe(12);return Ct.setInt32BE(r,0,t),null===Ft&&(Ft=rt.randomBytes(5)),r[4]=Ft[0],r[5]=Ft[1],r[6]=Ft[2],r[7]=Ft[3],r[8]=Ft[4],r[11]=255&e,r[10]=e>>8&255,r[9]=e>>16&255,r}toString(t){return"base64"===t?rt.toBase64(this.id):this.toHexString()}toJSON(){return this.toHexString()}static is(t){return null!=t&&"object"==typeof t&&"_bsontype"in t&&"ObjectId"===t._bsontype}equals(t){if(null==t)return!1;if(Vt.is(t))return this.buffer[11]===t.buffer[11]&&rt.equals(this.buffer,t.buffer);if("string"==typeof t)return t.toLowerCase()===this.toHexString();if("object"==typeof t&&"function"==typeof t.toHexString){const e=t.toHexString(),r=this.toHexString();return"string"==typeof e&&e.toLowerCase()===r}return!1}getTimestamp(){const t=new Date,e=Ct.getUint32BE(this.buffer,0);return t.setTime(1e3*Math.floor(e)),t}static createPk(){return new Vt}serializeInto(t,e){return t[e]=this.buffer[0],t[e+1]=this.buffer[1],t[e+2]=this.buffer[2],t[e+3]=this.buffer[3],t[e+4]=this.buffer[4],t[e+5]=this.buffer[5],t[e+6]=this.buffer[6],t[e+7]=this.buffer[7],t[e+8]=this.buffer[8],t[e+9]=this.buffer[9],t[e+10]=this.buffer[10],t[e+11]=this.buffer[11],12}static createFromTime(t){const e=rt.allocate(12);for(let t=11;t>=4;t--)e[t]=0;return Ct.setInt32BE(e,0,t),new Vt(e)}static createFromHexString(t){if(24!==t?.length)throw new q("hex string must be 24 characters");return new Vt(rt.fromHex(t))}static createFromBase64(t){if(16!==t?.length)throw new q("base64 string must be 16 characters");return new Vt(rt.fromBase64(t))}static isValid(t){if(null==t)return!1;try{return new Vt(t),!0}catch{return!1}}toExtendedJSON(){return this.toHexString?{$oid:this.toHexString()}:{$oid:this.toString("hex")}}static fromExtendedJSON(t){return new Vt(t.$oid)}inspect(t,e,r){return r??=u,`new ObjectId(${r(this.toHexString(),e)})`}}function zt(t,e,r){let n=5;if(Array.isArray(t))for(let i=0;i=b&&e<=y&&e>=h&&e<=l?(null!=t?rt.utf8ByteLength(t)+1:0)+5:(null!=t?rt.utf8ByteLength(t)+1:0)+9;case"undefined":return n||!o?(null!=t?rt.utf8ByteLength(t)+1:0)+1:0;case"boolean":return(null!=t?rt.utf8ByteLength(t)+1:0)+2;case"object":if(null!=e&&"string"==typeof e._bsontype&&e[Symbol.for("@@mdb.bson.version")]!==f)throw new F;if(null==e||"MinKey"===e._bsontype||"MaxKey"===e._bsontype)return(null!=t?rt.utf8ByteLength(t)+1:0)+1;if("ObjectId"===e._bsontype)return(null!=t?rt.utf8ByteLength(t)+1:0)+13;if(e instanceof Date||c(e))return(null!=t?rt.utf8ByteLength(t)+1:0)+9;if(ArrayBuffer.isView(e)||e instanceof ArrayBuffer||i(e))return(null!=t?rt.utf8ByteLength(t)+1:0)+6+e.byteLength;if("Long"===e._bsontype||"Double"===e._bsontype||"Timestamp"===e._bsontype)return(null!=t?rt.utf8ByteLength(t)+1:0)+9;if("Decimal128"===e._bsontype)return(null!=t?rt.utf8ByteLength(t)+1:0)+17;if("Code"===e._bsontype)return null!=e.scope&&Object.keys(e.scope).length>0?(null!=t?rt.utf8ByteLength(t)+1:0)+1+4+4+rt.utf8ByteLength(e.code.toString())+1+zt(e.scope,r,o):(null!=t?rt.utf8ByteLength(t)+1:0)+1+4+rt.utf8ByteLength(e.code.toString())+1;if("Binary"===e._bsontype){const r=e;return r.sub_type===it.SUBTYPE_BYTE_ARRAY?(null!=t?rt.utf8ByteLength(t)+1:0)+(r.position+1+4+1+4):(null!=t?rt.utf8ByteLength(t)+1:0)+(r.position+1+4+1)}if("Symbol"===e._bsontype)return(null!=t?rt.utf8ByteLength(t)+1:0)+rt.utf8ByteLength(e.value)+4+1+1;if("DBRef"===e._bsontype){const n=Object.assign({$ref:e.collection,$id:e.oid},e.fields);return null!=e.db&&(n.$db=e.db),(null!=t?rt.utf8ByteLength(t)+1:0)+1+zt(n,r,o)}return e instanceof RegExp||a(e)?(null!=t?rt.utf8ByteLength(t)+1:0)+1+rt.utf8ByteLength(e.source)+1+(e.global?1:0)+(e.ignoreCase?1:0)+(e.multiline?1:0)+1:"BSONRegExp"===e._bsontype?(null!=t?rt.utf8ByteLength(t)+1:0)+1+rt.utf8ByteLength(e.pattern)+1+rt.utf8ByteLength(e.options)+1:(null!=t?rt.utf8ByteLength(t)+1:0)+zt(e,r,o)+1;case"function":if(r)return(null!=t?rt.utf8ByteLength(t)+1:0)+1+4+rt.utf8ByteLength(e.toString())+1}return 0}Vt.index=Math.floor(16777215*Math.random());class Ht extends nt{get _bsontype(){return"BSONRegExp"}constructor(t,e){if(super(),this.pattern=t,this.options=(e??"").split("").sort().join(""),-1!==this.pattern.indexOf("\0"))throw new q(`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`);if(-1!==this.options.indexOf("\0"))throw new q(`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`);for(let t=0;tt);return r??=u,`new BSONRegExp(${n(r(this.pattern),"regexp")}, ${n(r(this.options),"regexp")})`}}class Wt extends nt{get _bsontype(){return"BSONSymbol"}constructor(t){super(),this.value=t}valueOf(){return this.value}toString(){return this.value}toJSON(){return this.value}toExtendedJSON(){return{$symbol:this.value}}static fromExtendedJSON(t){return new Wt(t.$symbol)}inspect(t,e,r){return r??=u,`new BSONSymbol(${r(this.value,e)})`}}const Jt=gt;class Gt extends Jt{get _bsontype(){return"Timestamp"}constructor(t){if(null==t)super(0,0,!0);else if("bigint"==typeof t)super(t,!0);else if(gt.isLong(t))super(t.low,t.high,!0);else{if("object"!=typeof t||!("t"in t)||!("i"in t))throw new q("A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }");{if("number"!=typeof t.t&&("object"!=typeof t.t||"Int32"!==t.t._bsontype))throw new q("Timestamp constructed from { t, i } must provide t as a number");if("number"!=typeof t.i&&("object"!=typeof t.i||"Int32"!==t.i._bsontype))throw new q("Timestamp constructed from { t, i } must provide i as a number");const e=Number(t.t),r=Number(t.i);if(e<0||Number.isNaN(e))throw new q("Timestamp constructed from { t, i } must provide a positive t");if(r<0||Number.isNaN(r))throw new q("Timestamp constructed from { t, i } must provide a positive i");if(e>4294967295)throw new q("Timestamp constructed from { t, i } must provide t equal or less than uint32 max");if(r>4294967295)throw new q("Timestamp constructed from { t, i } must provide i equal or less than uint32 max");super(r,e,!0)}}}toJSON(){return{$timestamp:this.toString()}}static fromInt(t){return new Gt(gt.fromInt(t,!0))}static fromNumber(t){return new Gt(gt.fromNumber(t,!0))}static fromBits(t,e){return new Gt({i:t,t:e})}static fromString(t,e){return new Gt(gt.fromString(t,!0,e))}toExtendedJSON(){return{$timestamp:{t:this.high>>>0,i:this.low>>>0}}}static fromExtendedJSON(t){const e=gt.isLong(t.$timestamp.i)?t.$timestamp.i.getLowBitsUnsigned():t.$timestamp.i,r=gt.isLong(t.$timestamp.t)?t.$timestamp.t.getLowBitsUnsigned():t.$timestamp.t;return new Gt({t:r,i:e})}inspect(t,e,r){return r??=u,`new Timestamp({ t: ${r(this.high>>>0,e)}, i: ${r(this.low>>>0,e)} })`}}Gt.MAX_VALUE=gt.MAX_UNSIGNED_VALUE;const Yt=gt.fromNumber(y),Qt=gt.fromNumber(b);function Xt(t,e,r){const n=(e=null==e?{}:e)&&e.index?e.index:0,i=Ct.getInt32LE(t,n);if(i<5)throw new q(`bson size must be >= 5, is ${i}`);if(e.allowObjectSmallerThanBufferSize&&t.length= bson size ${i}`);if(!e.allowObjectSmallerThanBufferSize&&t.length!==i)throw new q(`buffer length ${t.length} must === bson size ${i}`);if(i+n>t.byteLength)throw new q(`(bson size ${i} + options.index ${n} must be <= buffer length ${t.byteLength})`);if(0!==t[n+i-1])throw new q("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");return te(t,n,e,r)}const Zt=/^\$ref$|^\$id$|^\$db$/;function te(t,e,r,n=!1){const i=null==r.fieldsAsRaw?null:r.fieldsAsRaw,o=null!=r.raw&&r.raw,a="boolean"==typeof r.bsonRegExp&&r.bsonRegExp,s=r.promoteBuffers??!1,c=r.promoteLongs??!0,u=r.promoteValues??!0,f=r.useBigInt64??!1;if(f&&!u)throw new q("Must either request bigint or Long for int64 deserialization");if(f&&!c)throw new q("Must either request bigint or Long for int64 deserialization");let l,h,p=!0;const d=(null==r.validation?{utf8:!0}:r.validation).utf8;if("boolean"==typeof d)l=d;else{p=!1;const t=Object.keys(d).map((function(t){return d[t]}));if(0===t.length)throw new q("UTF-8 validation setting cannot be empty");if("boolean"!=typeof t[0])throw new q("Invalid UTF-8 validation option, must specify boolean values");if(l=t[0],!t.every((t=>t===l)))throw new q("Invalid UTF-8 validation option - keys must be all true or all false")}if(!p){h=new Set;for(const t of Object.keys(d))h.add(t)}const y=e;if(t.length<5)throw new q("corrupt bson message < 5 bytes long");const b=Ct.getInt32LE(t,e);if(e+=4,b<5||b>t.length)throw new q("corrupt bson message");const L=n?[]:{};let C=0,F=!n&&null;for(;;){const d=t[e++];if(0===d)break;let y=e;for(;0!==t[y]&&y=t.byteLength)throw new q("Bad BSON Document: illegal CString");const b=n?C++:rt.toUTF8(t,e,y,!1);let V,z=!0;if(z=p||h?.has(b)?l:!l,!1!==F&&"$"===b[0]&&(F=Zt.test(b)),e=y+1,d===v){const r=Ct.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new q("bad string length in bson");V=rt.toUTF8(t,e,e+r-1,z),e+=r}else if(d===O){const r=rt.allocateUnsafe(12);for(let n=0;n<12;n++)r[n]=t[e+n];V=new Vt(r),e+=12}else if(d===I&&!1===u)V=new Tt(Ct.getInt32LE(t,e)),e+=4;else if(d===I)V=Ct.getInt32LE(t,e),e+=4;else if(d===m)V=Ct.getFloat64LE(t,e),e+=8,!1===u&&(V=new Bt(V));else if(d===$){const r=Ct.getInt32LE(t,e),n=Ct.getInt32LE(t,e+4);e+=8,V=new Date(new gt(r,n).toNumber())}else if(d===j){if(0!==t[e]&&1!==t[e])throw new q("illegal boolean type value");V=1===t[e++]}else if(d===g){const n=e,i=Ct.getInt32LE(t,e);if(i<=0||i>t.length-e)throw new q("bad embedded document length in bson");if(o)V=t.slice(e,e+i);else{let e=r;p||(e={...r,validation:{utf8:z}}),V=te(t,n,e,!1)}e+=i}else if(d===_){const n=e,o=Ct.getInt32LE(t,e);let a=r;const s=e+o;if(i&&i[b]&&(a={...r,raw:!0}),p||(a={...a,validation:{utf8:z}}),V=te(t,n,a,!0),0!==t[(e+=o)-1])throw new q("invalid array terminator byte");if(e!==s)throw new q("corrupted array bson")}else if(d===S)V=void 0;else if(d===A)V=null;else if(d===T)if(f)V=Ct.getBigInt64LE(t,e),e+=8;else{const r=Ct.getInt32LE(t,e),n=Ct.getInt32LE(t,e+4);e+=8;const i=new gt(r,n);V=c&&!0===u&&i.lessThanOrEqual(Yt)&&i.greaterThanOrEqual(Qt)?i.toNumber():i}else if(d===R){const r=rt.allocateUnsafe(16);for(let n=0;n<16;n++)r[n]=t[e+n];e+=16,V=new It(r)}else if(d===w){let r=Ct.getInt32LE(t,e);e+=4;const n=r,i=t[e++];if(r<0)throw new q("Negative binary type element size found");if(r>t.byteLength)throw new q("Binary type size larger than document size");if(null!=t.slice){if(i===it.SUBTYPE_BYTE_ARRAY){if(r=Ct.getInt32LE(t,e),e+=4,r<0)throw new q("Negative binary type element size found for subtype 0x02");if(r>n-4)throw new q("Binary type with subtype 0x02 contains too long binary size");if(rn-4)throw new q("Binary type with subtype 0x02 contains too long binary size");if(r=t.length)throw new q("Bad BSON Document: illegal CString");const r=rt.toUTF8(t,e,y,!1);for(y=e=y+1;0!==t[y]&&y=t.length)throw new q("Bad BSON Document: illegal CString");const n=rt.toUTF8(t,e,y,!1);e=y+1;const i=new Array(n.length);for(y=0;y=t.length)throw new q("Bad BSON Document: illegal CString");const r=rt.toUTF8(t,e,y,!1);for(y=e=y+1;0!==t[y]&&y=t.length)throw new q("Bad BSON Document: illegal CString");const n=rt.toUTF8(t,e,y,!1);e=y+1,V=new Ht(r,n)}else if(d===k){const r=Ct.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new q("bad string length in bson");const n=rt.toUTF8(t,e,e+r-1,z);V=u?n:new Wt(n),e+=r}else if(d===B)V=new Gt({i:Ct.getUint32LE(t,e),t:Ct.getUint32LE(t,e+4)}),e+=8;else if(d===N)V=new Nt;else if(d===D)V=new Rt;else if(d===P){const r=Ct.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new q("bad string length in bson");const n=rt.toUTF8(t,e,e+r-1,z);V=new ct(n),e+=r}else if(d===M){const n=Ct.getInt32LE(t,e);if(e+=4,n<13)throw new q("code_w_scope total size shorter minimum expected length");const i=Ct.getInt32LE(t,e);if(e+=4,i<=0||i>t.length-e||0!==t[e+i-1])throw new q("bad string length in bson");const o=rt.toUTF8(t,e,e+i-1,z),a=e+=i,s=Ct.getInt32LE(t,e),c=te(t,a,r,!1);if(e+=s,n<8+s+i)throw new q("code_w_scope total size is too short, truncating scope");if(n>8+s+i)throw new q("code_w_scope total size is too long, clips outer document");V=new ct(o,c)}else{if(d!==x)throw new q(`Detected unknown BSON type ${d.toString(16)} for fieldname "${b}"`);{const r=Ct.getInt32LE(t,e);if(e+=4,r<=0||r>t.length-e||0!==t[e+r-1])throw new q("bad string length in bson");const n=rt.toUTF8(t,e,e+r-1,z);e+=r;const i=rt.allocateUnsafe(12);for(let r=0;r<12;r++)i[r]=t[e+r];const o=new Vt(i);e+=12,V=new ft(n,o)}}"__proto__"===b?Object.defineProperty(L,b,{value:V,writable:!0,enumerable:!0,configurable:!0}):L[b]=V}if(b!==e-y){if(n)throw new q("corrupt array bson");throw new q("corrupt object bson")}if(!F)return L;if(ut(L)){const t=Object.assign({},L);return delete t.$ref,delete t.$id,delete t.$db,new ft(L.$ref,L.$id,L.$db,t)}return L}const ee=/\x00/,re=new Set(["$db","$ref","$id","$clusterTime"]);function ne(t,e,r,n){t[n++]=v,t[(n=n+rt.encodeUTF8Into(t,e,n)+1)-1]=0;const i=rt.encodeUTF8Into(t,r,n+4);return Ct.setInt32LE(t,n,i+1),n=n+4+i,t[n++]=0,n}function ie(t,e,r,n){const i=!Object.is(r,-0)&&Number.isSafeInteger(r)&&r<=l&&r>=h?I:m;return t[n++]=i,n+=rt.encodeUTF8Into(t,e,n),t[n++]=0,n+(i===I?Ct.setInt32LE(t,n,r):Ct.setFloat64LE(t,n,r))}function oe(t,e,r,n){return t[n++]=T,n+=rt.encodeUTF8Into(t,e,n),t[n++]=0,n+Ct.setBigInt64LE(t,n,r)}function ae(t,e,r,n){return t[n++]=A,n+=rt.encodeUTF8Into(t,e,n),t[n++]=0,n}function se(t,e,r,n){return t[n++]=j,n+=rt.encodeUTF8Into(t,e,n),t[n++]=0,t[n++]=r?1:0,n}function ce(t,e,r,n){t[n++]=$,n+=rt.encodeUTF8Into(t,e,n),t[n++]=0;const i=gt.fromNumber(r.getTime()),o=i.getLowBits(),a=i.getHighBits();return(n+=Ct.setInt32LE(t,n,o))+Ct.setInt32LE(t,n,a)}function ue(t,e,r,n){if(t[n++]=E,n+=rt.encodeUTF8Into(t,e,n),t[n++]=0,r.source&&null!=r.source.match(ee))throw new q("value "+r.source+" must not contain null bytes");return 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a/week-3/04-course-app-hard/node_modules/mongoose/index.js b/week-3/04-course-app-hard/node_modules/mongoose/index.js new file mode 100644 index 000000000..4f4fa8ebe --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/index.js @@ -0,0 +1,63 @@ +/** + * Export lib/mongoose + * + */ + +'use strict'; + +const mongoose = require('./lib/'); + +module.exports = mongoose; +module.exports.default = mongoose; +module.exports.mongoose = mongoose; + +// Re-export for ESM support +module.exports.cast = mongoose.cast; +module.exports.STATES = mongoose.STATES; +module.exports.setDriver = mongoose.setDriver; +module.exports.set = mongoose.set; +module.exports.get = mongoose.get; +module.exports.createConnection = mongoose.createConnection; +module.exports.connect = mongoose.connect; +module.exports.disconnect = mongoose.disconnect; +module.exports.startSession = mongoose.startSession; +module.exports.pluralize = mongoose.pluralize; +module.exports.model = mongoose.model; +module.exports.deleteModel = mongoose.deleteModel; +module.exports.modelNames = mongoose.modelNames; +module.exports.plugin = mongoose.plugin; +module.exports.connections = mongoose.connections; +module.exports.version = mongoose.version; +module.exports.Mongoose = mongoose.Mongoose; +module.exports.Schema = mongoose.Schema; +module.exports.SchemaType = mongoose.SchemaType; +module.exports.SchemaTypes = mongoose.SchemaTypes; +module.exports.VirtualType = mongoose.VirtualType; +module.exports.Types = mongoose.Types; +module.exports.Query = mongoose.Query; +module.exports.Model = mongoose.Model; +module.exports.Document = mongoose.Document; +module.exports.ObjectId = mongoose.ObjectId; +module.exports.isValidObjectId = mongoose.isValidObjectId; +module.exports.isObjectIdOrHexString = mongoose.isObjectIdOrHexString; +module.exports.syncIndexes = mongoose.syncIndexes; +module.exports.Decimal128 = mongoose.Decimal128; +module.exports.Mixed = mongoose.Mixed; +module.exports.Date = mongoose.Date; +module.exports.Number = mongoose.Number; +module.exports.Error = mongoose.Error; +module.exports.MongooseError = mongoose.MongooseError; +module.exports.now = mongoose.now; +module.exports.CastError = mongoose.CastError; +module.exports.SchemaTypeOptions = mongoose.SchemaTypeOptions; +module.exports.mongo = mongoose.mongo; +module.exports.mquery = mongoose.mquery; +module.exports.sanitizeFilter = mongoose.sanitizeFilter; +module.exports.trusted = mongoose.trusted; +module.exports.skipMiddlewareFunction = mongoose.skipMiddlewareFunction; +module.exports.overwriteMiddlewareResult = mongoose.overwriteMiddlewareResult; + +// The following properties are not exported using ESM because `setDriver()` can mutate these +// module.exports.connection = mongoose.connection; +// module.exports.Collection = mongoose.Collection; +// module.exports.Connection = mongoose.Connection; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/aggregate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/aggregate.js new file mode 100644 index 000000000..35c32c480 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/aggregate.js @@ -0,0 +1,1199 @@ +'use strict'; + +/*! + * Module dependencies + */ + +const AggregationCursor = require('./cursor/aggregationCursor'); +const MongooseError = require('./error/mongooseError'); +const Query = require('./query'); +const { applyGlobalMaxTimeMS, applyGlobalDiskUse } = require('./helpers/query/applyGlobalOption'); +const clone = require('./helpers/clone'); +const getConstructorName = require('./helpers/getConstructorName'); +const prepareDiscriminatorPipeline = require('./helpers/aggregate/prepareDiscriminatorPipeline'); +const stringifyFunctionOperators = require('./helpers/aggregate/stringifyFunctionOperators'); +const utils = require('./utils'); +const read = Query.prototype.read; +const readConcern = Query.prototype.readConcern; + +const validRedactStringValues = new Set(['$$DESCEND', '$$PRUNE', '$$KEEP']); + +/** + * Aggregate constructor used for building aggregation pipelines. Do not + * instantiate this class directly, use [Model.aggregate()](https://mongoosejs.com/docs/api/model.html#Model.aggregate()) instead. + * + * #### Example: + * + * const aggregate = Model.aggregate([ + * { $project: { a: 1, b: 1 } }, + * { $skip: 5 } + * ]); + * + * Model. + * aggregate([{ $match: { age: { $gte: 21 }}}]). + * unwind('tags'). + * exec(); + * + * #### Note: + * + * - The documents returned are plain javascript objects, not mongoose documents (since any shape of document can be returned). + * - Mongoose does **not** cast pipeline stages. The below will **not** work unless `_id` is a string in the database + * + * new Aggregate([{ $match: { _id: '00000000000000000000000a' } }]); + * // Do this instead to cast to an ObjectId + * new Aggregate([{ $match: { _id: new mongoose.Types.ObjectId('00000000000000000000000a') } }]); + * + * @see MongoDB https://www.mongodb.com/docs/manual/applications/aggregation/ + * @see driver https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#aggregate + * @param {Array} [pipeline] aggregation pipeline as an array of objects + * @param {Model} [model] the model to use with this aggregate. + * @api public + */ + +function Aggregate(pipeline, model) { + this._pipeline = []; + this._model = model; + this.options = {}; + + if (arguments.length === 1 && Array.isArray(pipeline)) { + this.append.apply(this, pipeline); + } +} + +/** + * Contains options passed down to the [aggregate command](https://www.mongodb.com/docs/manual/reference/command/aggregate/). + * Supported options are: + * + * - [`allowDiskUse`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.allowDiskUse()) + * - `bypassDocumentValidation` + * - [`collation`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.collation()) + * - `comment` + * - [`cursor`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.cursor()) + * - [`explain`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.explain()) + * - `fieldsAsRaw` + * - [`hint`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.hint()) + * - `let` + * - `maxTimeMS` + * - `raw` + * - [`readConcern`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.readConcern()) + * - `readPreference` + * - [`session`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.session()) + * - `writeConcern` + * + * @property options + * @memberOf Aggregate + * @api public + */ + +Aggregate.prototype.options; + +/** + * Get/set the model that this aggregation will execute on. + * + * #### Example: + * + * const aggregate = MyModel.aggregate([{ $match: { answer: 42 } }]); + * aggregate.model() === MyModel; // true + * + * // Change the model. There's rarely any reason to do this. + * aggregate.model(SomeOtherModel); + * aggregate.model() === SomeOtherModel; // true + * + * @param {Model} [model] Set the model associated with this aggregate. If not provided, returns the already stored model. + * @return {Model} + * @api public + */ + +Aggregate.prototype.model = function(model) { + if (arguments.length === 0) { + return this._model; + } + + this._model = model; + if (model.schema != null) { + if (this.options.readPreference == null && + model.schema.options.read != null) { + this.options.readPreference = model.schema.options.read; + } + if (this.options.collation == null && + model.schema.options.collation != null) { + this.options.collation = model.schema.options.collation; + } + } + + return model; +}; + +/** + * Appends new operators to this aggregate pipeline + * + * #### Example: + * + * aggregate.append({ $project: { field: 1 }}, { $limit: 2 }); + * + * // or pass an array + * const pipeline = [{ $match: { daw: 'Logic Audio X' }} ]; + * aggregate.append(pipeline); + * + * @param {...Object|Object[]} ops operator(s) to append. Can either be a spread of objects or a single parameter of a object array. + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.append = function() { + const args = (arguments.length === 1 && Array.isArray(arguments[0])) + ? arguments[0] + : [...arguments]; + + if (!args.every(isOperator)) { + throw new Error('Arguments must be aggregate pipeline operators'); + } + + this._pipeline = this._pipeline.concat(args); + + return this; +}; + +/** + * Appends a new $addFields operator to this aggregate pipeline. + * Requires MongoDB v3.4+ to work + * + * #### Example: + * + * // adding new fields based on existing fields + * aggregate.addFields({ + * newField: '$b.nested' + * , plusTen: { $add: ['$val', 10]} + * , sub: { + * name: '$a' + * } + * }) + * + * // etc + * aggregate.addFields({ salary_k: { $divide: [ "$salary", 1000 ] } }); + * + * @param {Object} arg field specification + * @see $addFields https://www.mongodb.com/docs/manual/reference/operator/aggregation/addFields/ + * @return {Aggregate} + * @api public + */ +Aggregate.prototype.addFields = function(arg) { + if (typeof arg !== 'object' || arg === null || Array.isArray(arg)) { + throw new Error('Invalid addFields() argument. Must be an object'); + } + return this.append({ $addFields: Object.assign({}, arg) }); +}; + +/** + * Appends a new $project operator to this aggregate pipeline. + * + * Mongoose query [selection syntax](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) is also supported. + * + * #### Example: + * + * // include a, include b, exclude _id + * aggregate.project("a b -_id"); + * + * // or you may use object notation, useful when + * // you have keys already prefixed with a "-" + * aggregate.project({a: 1, b: 1, _id: 0}); + * + * // reshaping documents + * aggregate.project({ + * newField: '$b.nested' + * , plusTen: { $add: ['$val', 10]} + * , sub: { + * name: '$a' + * } + * }) + * + * // etc + * aggregate.project({ salary_k: { $divide: [ "$salary", 1000 ] } }); + * + * @param {Object|String} arg field specification + * @see projection https://www.mongodb.com/docs/manual/reference/aggregation/project/ + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.project = function(arg) { + const fields = {}; + + if (typeof arg === 'object' && !Array.isArray(arg)) { + Object.keys(arg).forEach(function(field) { + fields[field] = arg[field]; + }); + } else if (arguments.length === 1 && typeof arg === 'string') { + arg.split(/\s+/).forEach(function(field) { + if (!field) { + return; + } + const include = field[0] === '-' ? 0 : 1; + if (include === 0) { + field = field.substring(1); + } + fields[field] = include; + }); + } else { + throw new Error('Invalid project() argument. Must be string or object'); + } + + return this.append({ $project: fields }); +}; + +/** + * Appends a new custom $group operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.group({ _id: "$department" }); + * + * @see $group https://www.mongodb.com/docs/manual/reference/aggregation/group/ + * @method group + * @memberOf Aggregate + * @instance + * @param {Object} arg $group operator contents + * @return {Aggregate} + * @api public + */ + +/** + * Appends a new custom $match operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.match({ department: { $in: [ "sales", "engineering" ] } }); + * + * @see $match https://www.mongodb.com/docs/manual/reference/aggregation/match/ + * @method match + * @memberOf Aggregate + * @instance + * @param {Object} arg $match operator contents + * @return {Aggregate} + * @api public + */ + +/** + * Appends a new $skip operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.skip(10); + * + * @see $skip https://www.mongodb.com/docs/manual/reference/aggregation/skip/ + * @method skip + * @memberOf Aggregate + * @instance + * @param {Number} num number of records to skip before next stage + * @return {Aggregate} + * @api public + */ + +/** + * Appends a new $limit operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.limit(10); + * + * @see $limit https://www.mongodb.com/docs/manual/reference/aggregation/limit/ + * @method limit + * @memberOf Aggregate + * @instance + * @param {Number} num maximum number of records to pass to the next stage + * @return {Aggregate} + * @api public + */ + + +/** + * Appends a new $densify operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.densify({ + * field: 'timestamp', + * range: { + * step: 1, + * unit: 'hour', + * bounds: [new Date('2021-05-18T00:00:00.000Z'), new Date('2021-05-18T08:00:00.000Z')] + * } + * }); + * + * @see $densify https://www.mongodb.com/docs/manual/reference/operator/aggregation/densify/ + * @method densify + * @memberOf Aggregate + * @instance + * @param {Object} arg $densify operator contents + * @return {Aggregate} + * @api public + */ + +/** + * Appends a new $fill operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.fill({ + * output: { + * bootsSold: { value: 0 }, + * sandalsSold: { value: 0 }, + * sneakersSold: { value: 0 } + * } + * }); + * + * @see $fill https://www.mongodb.com/docs/manual/reference/operator/aggregation/fill/ + * @method fill + * @memberOf Aggregate + * @instance + * @param {Object} arg $fill operator contents + * @return {Aggregate} + * @api public + */ + +/** + * Appends a new $geoNear operator to this aggregate pipeline. + * + * #### Note: + * + * **MUST** be used as the first operator in the pipeline. + * + * #### Example: + * + * aggregate.near({ + * near: { type: 'Point', coordinates: [40.724, -73.997] }, + * distanceField: "dist.calculated", // required + * maxDistance: 0.008, + * query: { type: "public" }, + * includeLocs: "dist.location", + * spherical: true, + * }); + * + * @see $geoNear https://www.mongodb.com/docs/manual/reference/aggregation/geoNear/ + * @method near + * @memberOf Aggregate + * @instance + * @param {Object} arg + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.near = function(arg) { + const op = {}; + op.$geoNear = arg; + return this.append(op); +}; + +/*! + * define methods + */ + +'group match skip limit out densify fill'.split(' ').forEach(function($operator) { + Aggregate.prototype[$operator] = function(arg) { + const op = {}; + op['$' + $operator] = arg; + return this.append(op); + }; +}); + +/** + * Appends new custom $unwind operator(s) to this aggregate pipeline. + * + * Note that the `$unwind` operator requires the path name to start with '$'. + * Mongoose will prepend '$' if the specified field doesn't start '$'. + * + * #### Example: + * + * aggregate.unwind("tags"); + * aggregate.unwind("a", "b", "c"); + * aggregate.unwind({ path: '$tags', preserveNullAndEmptyArrays: true }); + * + * @see $unwind https://www.mongodb.com/docs/manual/reference/aggregation/unwind/ + * @param {String|Object|String[]|Object[]} fields the field(s) to unwind, either as field names or as [objects with options](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unwind/#document-operand-with-options). If passing a string, prefixing the field name with '$' is optional. If passing an object, `path` must start with '$'. + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.unwind = function() { + const args = [...arguments]; + + const res = []; + for (const arg of args) { + if (arg && typeof arg === 'object') { + res.push({ $unwind: arg }); + } else if (typeof arg === 'string') { + res.push({ + $unwind: (arg[0] === '$') ? arg : '$' + arg + }); + } else { + throw new Error('Invalid arg "' + arg + '" to unwind(), ' + + 'must be string or object'); + } + } + + return this.append.apply(this, res); +}; + +/** + * Appends a new $replaceRoot operator to this aggregate pipeline. + * + * Note that the `$replaceRoot` operator requires field strings to start with '$'. + * If you are passing in a string Mongoose will prepend '$' if the specified field doesn't start '$'. + * If you are passing in an object the strings in your expression will not be altered. + * + * #### Example: + * + * aggregate.replaceRoot("user"); + * + * aggregate.replaceRoot({ x: { $concat: ['$this', '$that'] } }); + * + * @see $replaceRoot https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceRoot + * @param {String|Object} newRoot the field or document which will become the new root document + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.replaceRoot = function(newRoot) { + let ret; + + if (typeof newRoot === 'string') { + ret = newRoot.startsWith('$') ? newRoot : '$' + newRoot; + } else { + ret = newRoot; + } + + return this.append({ + $replaceRoot: { + newRoot: ret + } + }); +}; + +/** + * Appends a new $count operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.count("userCount"); + * + * @see $count https://www.mongodb.com/docs/manual/reference/operator/aggregation/count + * @param {String} fieldName The name of the output field which has the count as its value. It must be a non-empty string, must not start with $ and must not contain the . character. + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.count = function(fieldName) { + return this.append({ $count: fieldName }); +}; + +/** + * Appends a new $sortByCount operator to this aggregate pipeline. Accepts either a string field name + * or a pipeline object. + * + * Note that the `$sortByCount` operator requires the new root to start with '$'. + * Mongoose will prepend '$' if the specified field name doesn't start with '$'. + * + * #### Example: + * + * aggregate.sortByCount('users'); + * aggregate.sortByCount({ $mergeObjects: [ "$employee", "$business" ] }) + * + * @see $sortByCount https://www.mongodb.com/docs/manual/reference/operator/aggregation/sortByCount/ + * @param {Object|String} arg + * @return {Aggregate} this + * @api public + */ + +Aggregate.prototype.sortByCount = function(arg) { + if (arg && typeof arg === 'object') { + return this.append({ $sortByCount: arg }); + } else if (typeof arg === 'string') { + return this.append({ + $sortByCount: (arg[0] === '$') ? arg : '$' + arg + }); + } else { + throw new TypeError('Invalid arg "' + arg + '" to sortByCount(), ' + + 'must be string or object'); + } +}; + +/** + * Appends new custom $lookup operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.lookup({ from: 'users', localField: 'userId', foreignField: '_id', as: 'users' }); + * + * @see $lookup https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/#pipe._S_lookup + * @param {Object} options to $lookup as described in the above link + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.lookup = function(options) { + return this.append({ $lookup: options }); +}; + +/** + * Appends new custom $graphLookup operator(s) to this aggregate pipeline, performing a recursive search on a collection. + * + * Note that graphLookup can only consume at most 100MB of memory, and does not allow disk use even if `{ allowDiskUse: true }` is specified. + * + * #### Example: + * + * // Suppose we have a collection of courses, where a document might look like `{ _id: 0, name: 'Calculus', prerequisite: 'Trigonometry'}` and `{ _id: 0, name: 'Trigonometry', prerequisite: 'Algebra' }` + * aggregate.graphLookup({ from: 'courses', startWith: '$prerequisite', connectFromField: 'prerequisite', connectToField: 'name', as: 'prerequisites', maxDepth: 3 }) // this will recursively search the 'courses' collection up to 3 prerequisites + * + * @see $graphLookup https://www.mongodb.com/docs/manual/reference/operator/aggregation/graphLookup/#pipe._S_graphLookup + * @param {Object} options to $graphLookup as described in the above link + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.graphLookup = function(options) { + const cloneOptions = {}; + if (options) { + if (!utils.isObject(options)) { + throw new TypeError('Invalid graphLookup() argument. Must be an object.'); + } + + utils.mergeClone(cloneOptions, options); + const startWith = cloneOptions.startWith; + + if (startWith && typeof startWith === 'string') { + cloneOptions.startWith = cloneOptions.startWith.startsWith('$') ? + cloneOptions.startWith : + '$' + cloneOptions.startWith; + } + + } + return this.append({ $graphLookup: cloneOptions }); +}; + +/** + * Appends new custom $sample operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.sample(3); // Add a pipeline that picks 3 random documents + * + * @see $sample https://www.mongodb.com/docs/manual/reference/operator/aggregation/sample/#pipe._S_sample + * @param {Number} size number of random documents to pick + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.sample = function(size) { + return this.append({ $sample: { size: size } }); +}; + +/** + * Appends a new $sort operator to this aggregate pipeline. + * + * If an object is passed, values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`. + * + * If a string is passed, it must be a space delimited list of path names. The sort order of each path is ascending unless the path name is prefixed with `-` which will be treated as descending. + * + * #### Example: + * + * // these are equivalent + * aggregate.sort({ field: 'asc', test: -1 }); + * aggregate.sort('field -test'); + * + * @see $sort https://www.mongodb.com/docs/manual/reference/aggregation/sort/ + * @param {Object|String} arg + * @return {Aggregate} this + * @api public + */ + +Aggregate.prototype.sort = function(arg) { + // TODO refactor to reuse the query builder logic + + const sort = {}; + + if (getConstructorName(arg) === 'Object') { + const desc = ['desc', 'descending', -1]; + Object.keys(arg).forEach(function(field) { + // If sorting by text score, skip coercing into 1/-1 + if (arg[field] instanceof Object && arg[field].$meta) { + sort[field] = arg[field]; + return; + } + sort[field] = desc.indexOf(arg[field]) === -1 ? 1 : -1; + }); + } else if (arguments.length === 1 && typeof arg === 'string') { + arg.split(/\s+/).forEach(function(field) { + if (!field) { + return; + } + const ascend = field[0] === '-' ? -1 : 1; + if (ascend === -1) { + field = field.substring(1); + } + sort[field] = ascend; + }); + } else { + throw new TypeError('Invalid sort() argument. Must be a string or object.'); + } + + return this.append({ $sort: sort }); +}; + +/** + * Appends new $unionWith operator to this aggregate pipeline. + * + * #### Example: + * + * aggregate.unionWith({ coll: 'users', pipeline: [ { $match: { _id: 1 } } ] }); + * + * @see $unionWith https://www.mongodb.com/docs/manual/reference/operator/aggregation/unionWith + * @param {Object} options to $unionWith query as described in the above link + * @return {Aggregate} + * @api public + */ + +Aggregate.prototype.unionWith = function(options) { + return this.append({ $unionWith: options }); +}; + + +/** + * Sets the readPreference option for the aggregation query. + * + * #### Example: + * + * await Model.aggregate(pipeline).read('primaryPreferred'); + * + * @param {String|ReadPreference} pref one of the listed preference options or their aliases + * @param {Array} [tags] optional tags for this query. + * @return {Aggregate} this + * @api public + * @see mongodb https://www.mongodb.com/docs/manual/applications/replication/#read-preference + */ + +Aggregate.prototype.read = function(pref, tags) { + read.call(this, pref, tags); + return this; +}; + +/** + * Sets the readConcern level for the aggregation query. + * + * #### Example: + * + * await Model.aggregate(pipeline).readConcern('majority'); + * + * @param {String} level one of the listed read concern level or their aliases + * @see mongodb https://www.mongodb.com/docs/manual/reference/read-concern/ + * @return {Aggregate} this + * @api public + */ + +Aggregate.prototype.readConcern = function(level) { + readConcern.call(this, level); + return this; +}; + +/** + * Appends a new $redact operator to this aggregate pipeline. + * + * If 3 arguments are supplied, Mongoose will wrap them with if-then-else of $cond operator respectively + * If `thenExpr` or `elseExpr` is string, make sure it starts with $$, like `$$DESCEND`, `$$PRUNE` or `$$KEEP`. + * + * #### Example: + * + * await Model.aggregate(pipeline).redact({ + * $cond: { + * if: { $eq: [ '$level', 5 ] }, + * then: '$$PRUNE', + * else: '$$DESCEND' + * } + * }); + * + * // $redact often comes with $cond operator, you can also use the following syntax provided by mongoose + * await Model.aggregate(pipeline).redact({ $eq: [ '$level', 5 ] }, '$$PRUNE', '$$DESCEND'); + * + * @param {Object} expression redact options or conditional expression + * @param {String|Object} [thenExpr] true case for the condition + * @param {String|Object} [elseExpr] false case for the condition + * @return {Aggregate} this + * @see $redact https://www.mongodb.com/docs/manual/reference/operator/aggregation/redact/ + * @api public + */ + +Aggregate.prototype.redact = function(expression, thenExpr, elseExpr) { + if (arguments.length === 3) { + if ((typeof thenExpr === 'string' && !validRedactStringValues.has(thenExpr)) || + (typeof elseExpr === 'string' && !validRedactStringValues.has(elseExpr))) { + throw new Error('If thenExpr or elseExpr is string, it must be either $$DESCEND, $$PRUNE or $$KEEP'); + } + + expression = { + $cond: { + if: expression, + then: thenExpr, + else: elseExpr + } + }; + } else if (arguments.length !== 1) { + throw new TypeError('Invalid arguments'); + } + + return this.append({ $redact: expression }); +}; + +/** + * Execute the aggregation with explain + * + * #### Example: + * + * Model.aggregate(..).explain() + * + * @param {String} [verbosity] + * @return {Promise} + */ + +Aggregate.prototype.explain = async function explain(verbosity) { + if (typeof verbosity === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Aggregate.prototype.explain() no longer accepts a callback'); + } + const model = this._model; + + if (!this._pipeline.length) { + throw new Error('Aggregate has empty pipeline'); + } + + prepareDiscriminatorPipeline(this._pipeline, this._model.schema); + + await new Promise((resolve, reject) => { + model.hooks.execPre('aggregate', this, error => { + if (error) { + const _opts = { error: error }; + return model.hooks.execPost('aggregate', this, [null], _opts, error => { + reject(error); + }); + } else { + resolve(); + } + }); + }); + + const cursor = model.collection.aggregate(this._pipeline, this.options); + + if (verbosity == null) { + verbosity = true; + } + + let result = null; + try { + result = await cursor.explain(verbosity); + } catch (error) { + await new Promise((resolve, reject) => { + const _opts = { error: error }; + model.hooks.execPost('aggregate', this, [null], _opts, error => { + if (error) { + return reject(error); + } + return resolve(); + }); + }); + } + + const _opts = { error: null }; + await new Promise((resolve, reject) => { + model.hooks.execPost('aggregate', this, [result], _opts, error => { + if (error) { + return reject(error); + } + return resolve(); + }); + }); + + return result; +}; + +/** + * Sets the allowDiskUse option for the aggregation query + * + * #### Example: + * + * await Model.aggregate([{ $match: { foo: 'bar' } }]).allowDiskUse(true); + * + * @param {Boolean} value Should tell server it can use hard drive to store data during aggregation. + * @return {Aggregate} this + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/ + */ + +Aggregate.prototype.allowDiskUse = function(value) { + this.options.allowDiskUse = value; + return this; +}; + +/** + * Sets the hint option for the aggregation query + * + * #### Example: + * + * Model.aggregate(..).hint({ qty: 1, category: 1 }).exec(); + * + * @param {Object|String} value a hint object or the index name + * @return {Aggregate} this + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/ + */ + +Aggregate.prototype.hint = function(value) { + this.options.hint = value; + return this; +}; + +/** + * Sets the session for this aggregation. Useful for [transactions](https://mongoosejs.com/docs/transactions.html). + * + * #### Example: + * + * const session = await Model.startSession(); + * await Model.aggregate(..).session(session); + * + * @param {ClientSession} session + * @return {Aggregate} this + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/ + */ + +Aggregate.prototype.session = function(session) { + if (session == null) { + delete this.options.session; + } else { + this.options.session = session; + } + return this; +}; + +/** + * Lets you set arbitrary options, for middleware or plugins. + * + * #### Example: + * + * const agg = Model.aggregate(..).option({ allowDiskUse: true }); // Set the `allowDiskUse` option + * agg.options; // `{ allowDiskUse: true }` + * + * @param {Object} options keys to merge into current options + * @param {Number} [options.maxTimeMS] number limits the time this aggregation will run, see [MongoDB docs on `maxTimeMS`](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/) + * @param {Boolean} [options.allowDiskUse] boolean if true, the MongoDB server will use the hard drive to store data during this aggregation + * @param {Object} [options.collation] object see [`Aggregate.prototype.collation()`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.collation()) + * @param {ClientSession} [options.session] ClientSession see [`Aggregate.prototype.session()`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.session()) + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/aggregate/ + * @return {Aggregate} this + * @api public + */ + +Aggregate.prototype.option = function(value) { + for (const key in value) { + this.options[key] = value[key]; + } + return this; +}; + +/** + * Sets the `cursor` option and executes this aggregation, returning an aggregation cursor. + * Cursors are useful if you want to process the results of the aggregation one-at-a-time + * because the aggregation result is too big to fit into memory. + * + * #### Example: + * + * const cursor = Model.aggregate(..).cursor({ batchSize: 1000 }); + * cursor.eachAsync(function(doc, i) { + * // use doc + * }); + * + * @param {Object} options + * @param {Number} [options.batchSize] set the cursor batch size + * @param {Boolean} [options.useMongooseAggCursor] use experimental mongoose-specific aggregation cursor (for `eachAsync()` and other query cursor semantics) + * @return {AggregationCursor} cursor representing this aggregation + * @api public + * @see mongodb https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html + */ + +Aggregate.prototype.cursor = function(options) { + this.options.cursor = options || {}; + return new AggregationCursor(this); // return this; +}; + +/** + * Adds a collation + * + * #### Example: + * + * const res = await Model.aggregate(pipeline).collation({ locale: 'en_US', strength: 1 }); + * + * @param {Object} collation options + * @return {Aggregate} this + * @api public + * @see mongodb https://mongodb.github.io/node-mongodb-native/4.9/interfaces/CollationOptions.html + */ + +Aggregate.prototype.collation = function(collation) { + this.options.collation = collation; + return this; +}; + +/** + * Combines multiple aggregation pipelines. + * + * #### Example: + * + * const res = await Model.aggregate().facet({ + * books: [{ groupBy: '$author' }], + * price: [{ $bucketAuto: { groupBy: '$price', buckets: 2 } }] + * }); + * + * // Output: { books: [...], price: [{...}, {...}] } + * + * @param {Object} facet options + * @return {Aggregate} this + * @see $facet https://www.mongodb.com/docs/manual/reference/operator/aggregation/facet/ + * @api public + */ + +Aggregate.prototype.facet = function(options) { + return this.append({ $facet: options }); +}; + +/** + * Helper for [Atlas Text Search](https://www.mongodb.com/docs/atlas/atlas-search/tutorial/)'s + * `$search` stage. + * + * #### Example: + * + * const res = await Model.aggregate(). + * search({ + * text: { + * query: 'baseball', + * path: 'plot' + * } + * }); + * + * // Output: [{ plot: '...', title: '...' }] + * + * @param {Object} $search options + * @return {Aggregate} this + * @see $search https://www.mongodb.com/docs/atlas/atlas-search/tutorial/ + * @api public + */ + +Aggregate.prototype.search = function(options) { + return this.append({ $search: options }); +}; + +/** + * Returns the current pipeline + * + * #### Example: + * + * MyModel.aggregate().match({ test: 1 }).pipeline(); // [{ $match: { test: 1 } }] + * + * @return {Array} The current pipeline similar to the operation that will be executed + * @api public + */ + +Aggregate.prototype.pipeline = function() { + return this._pipeline; +}; + +/** + * Executes the aggregate pipeline on the currently bound Model. + * + * #### Example: + * const result = await aggregate.exec(); + * + * @return {Promise} + * @api public + */ + +Aggregate.prototype.exec = async function exec() { + if (!this._model) { + throw new Error('Aggregate not bound to any Model'); + } + if (typeof arguments[0] === 'function') { + throw new MongooseError('Aggregate.prototype.exec() no longer accepts a callback'); + } + const model = this._model; + const collection = this._model.collection; + + applyGlobalMaxTimeMS(this.options, model.db.options, model.base.options); + applyGlobalDiskUse(this.options, model.db.options, model.base.options); + + const asyncLocalStorage = this.model()?.db?.base.transactionAsyncLocalStorage?.getStore(); + if (!this.options.hasOwnProperty('session') && asyncLocalStorage?.session != null) { + this.options.session = asyncLocalStorage.session; + } + + if (this.options && this.options.cursor) { + return new AggregationCursor(this); + } + + prepareDiscriminatorPipeline(this._pipeline, this._model.schema); + stringifyFunctionOperators(this._pipeline); + + await new Promise((resolve, reject) => { + model.hooks.execPre('aggregate', this, error => { + if (error) { + const _opts = { error: error }; + return model.hooks.execPost('aggregate', this, [null], _opts, error => { + reject(error); + }); + } else { + resolve(); + } + }); + }); + + if (!this._pipeline.length) { + throw new MongooseError('Aggregate has empty pipeline'); + } + + const options = clone(this.options || {}); + let result; + try { + const cursor = await collection.aggregate(this._pipeline, options); + result = await cursor.toArray(); + } catch (error) { + await new Promise((resolve, reject) => { + const _opts = { error: error }; + model.hooks.execPost('aggregate', this, [null], _opts, (error) => { + if (error) { + return reject(error); + } + + resolve(); + }); + }); + } + + const _opts = { error: null }; + await new Promise((resolve, reject) => { + model.hooks.execPost('aggregate', this, [result], _opts, error => { + if (error) { + return reject(error); + } + return resolve(); + }); + }); + + return result; +}; + +/** + * Provides a Promise-like `then` function, which will call `.exec` without a callback + * Compatible with `await`. + * + * #### Example: + * + * Model.aggregate(..).then(successCallback, errorCallback); + * + * @param {Function} [resolve] successCallback + * @param {Function} [reject] errorCallback + * @return {Promise} + */ +Aggregate.prototype.then = function(resolve, reject) { + return this.exec().then(resolve, reject); +}; + +/** + * Executes the aggregation returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + * Like [`.then()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.then), but only takes a rejection handler. + * Compatible with `await`. + * + * @param {Function} [reject] + * @return {Promise} + * @api public + */ + +Aggregate.prototype.catch = function(reject) { + return this.exec().then(null, reject); +}; + +/** + * Executes the aggregate returning a `Promise` which will be + * resolved with `.finally()` chained. + * + * More about [Promise `finally()` in JavaScript](https://thecodebarbarian.com/using-promise-finally-in-node-js.html). + * + * @param {Function} [onFinally] + * @return {Promise} + * @api public + */ + +Aggregate.prototype.finally = function(onFinally) { + return this.exec().finally(onFinally); +}; + +/** + * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js) + * You do not need to call this function explicitly, the JavaScript runtime + * will call it for you. + * + * #### Example: + * + * const agg = Model.aggregate([{ $match: { age: { $gte: 25 } } }]); + * for await (const doc of agg) { + * console.log(doc.name); + * } + * + * Node.js 10.x supports async iterators natively without any flags. You can + * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187). + * + * **Note:** This function is not set if `Symbol.asyncIterator` is undefined. If + * `Symbol.asyncIterator` is undefined, that means your Node.js version does not + * support async iterators. + * + * @method [Symbol.asyncIterator] + * @memberOf Aggregate + * @instance + * @api public + */ + +if (Symbol.asyncIterator != null) { + Aggregate.prototype[Symbol.asyncIterator] = function() { + return this.cursor({ useMongooseAggCursor: true }).transformNull()._transformForAsyncIterator(); + }; +} + +/*! + * Helpers + */ + +/** + * Checks whether an object is likely a pipeline operator + * + * @param {Object} obj object to check + * @return {Boolean} + * @api private + */ + +function isOperator(obj) { + if (typeof obj !== 'object' || obj === null) { + return false; + } + + const k = Object.keys(obj); + + return k.length === 1 && k[0][0] === '$'; +} + +/** + * Adds the appropriate `$match` pipeline step to the top of an aggregate's + * pipeline, should it's model is a non-root discriminator type. This is + * analogous to the `prepareDiscriminatorCriteria` function in `lib/query.js`. + * + * @param {Aggregate} aggregate Aggregate to prepare + * @api private + */ + +Aggregate._prepareDiscriminatorPipeline = prepareDiscriminatorPipeline; + +/*! + * Exports + */ + +module.exports = Aggregate; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/browser.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/browser.js new file mode 100644 index 000000000..12b0cbde6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/browser.js @@ -0,0 +1,132 @@ +/* eslint-env browser */ + +'use strict'; + +require('./driver').set(require('./drivers/browser')); + +const DocumentProvider = require('./documentProvider.js'); + +DocumentProvider.setBrowser(true); + +/** + * The [MongooseError](https://mongoosejs.com/docs/api/error.html#Error()) constructor. + * + * @method Error + * @api public + */ + +exports.Error = require('./error/index'); + +/** + * The Mongoose [Schema](https://mongoosejs.com/docs/api/schema.html#Schema()) constructor + * + * #### Example: + * + * const mongoose = require('mongoose'); + * const Schema = mongoose.Schema; + * const CatSchema = new Schema(..); + * + * @method Schema + * @api public + */ + +exports.Schema = require('./schema'); + +/** + * The various Mongoose Types. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * const array = mongoose.Types.Array; + * + * #### Types: + * + * - [Array](https://mongoosejs.com/docs/schematypes.html#arrays) + * - [Buffer](https://mongoosejs.com/docs/schematypes.html#buffers) + * - [Embedded](https://mongoosejs.com/docs/schematypes.html#schemas) + * - [DocumentArray](https://mongoosejs.com/docs/api/documentarraypath.html) + * - [Decimal128](https://mongoosejs.com/docs/api/decimal128.html#Decimal128()) + * - [ObjectId](https://mongoosejs.com/docs/schematypes.html#objectids) + * - [Map](https://mongoosejs.com/docs/schematypes.html#maps) + * - [Subdocument](https://mongoosejs.com/docs/schematypes.html#schemas) + * + * Using this exposed access to the `ObjectId` type, we can construct ids on demand. + * + * const ObjectId = mongoose.Types.ObjectId; + * const id1 = new ObjectId; + * + * @property Types + * @api public + */ +exports.Types = require('./types'); + +/** + * The Mongoose [VirtualType](https://mongoosejs.com/docs/api/virtualtype.html#VirtualType()) constructor + * + * @method VirtualType + * @api public + */ +exports.VirtualType = require('./virtualType'); + +/** + * The various Mongoose SchemaTypes. + * + * #### Note: + * + * _Alias of mongoose.Schema.Types for backwards compatibility._ + * + * @property SchemaTypes + * @see Schema.SchemaTypes https://mongoosejs.com/docs/api/schema.html#Schema.Types + * @api public + */ + +exports.SchemaType = require('./schemaType.js'); + +/** + * Internal utils + * + * @property utils + * @api private + */ + +exports.utils = require('./utils.js'); + +/** + * The Mongoose browser [Document](/api/document.html) constructor. + * + * @method Document + * @api public + */ +exports.Document = DocumentProvider(); + +/** + * Return a new browser model. In the browser, a model is just + * a simplified document with a schema - it does **not** have + * functions like `findOne()`, etc. + * + * @method model + * @api public + * @param {String} name + * @param {Schema} schema + * @return Class + */ +exports.model = function(name, schema) { + class Model extends exports.Document { + constructor(obj, fields) { + super(obj, schema, fields); + } + } + Model.modelName = name; + + return Model; +}; + +/*! + * Module exports. + */ + +if (typeof window !== 'undefined') { + window.mongoose = module.exports; + window.Buffer = Buffer; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/browserDocument.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/browserDocument.js new file mode 100644 index 000000000..bf9b22a0b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/browserDocument.js @@ -0,0 +1,101 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const NodeJSDocument = require('./document'); +const EventEmitter = require('events').EventEmitter; +const MongooseError = require('./error/index'); +const Schema = require('./schema'); +const ObjectId = require('./types/objectid'); +const ValidationError = MongooseError.ValidationError; +const applyHooks = require('./helpers/model/applyHooks'); +const isObject = require('./helpers/isObject'); + +/** + * Document constructor. + * + * @param {Object} obj the values to set + * @param {Object} schema + * @param {Object} [fields] optional object containing the fields which were selected in the query returning this document and any populated paths data + * @param {Boolean} [skipId] bool, should we auto create an ObjectId _id + * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter + * @event `init`: Emitted on a document after it has was retrieved from the db and fully hydrated by Mongoose. + * @event `save`: Emitted when the document is successfully saved + * @api private + */ + +function Document(obj, schema, fields, skipId, skipInit) { + if (!(this instanceof Document)) { + return new Document(obj, schema, fields, skipId, skipInit); + } + + if (isObject(schema) && !schema.instanceOfSchema) { + schema = new Schema(schema); + } + + // When creating EmbeddedDocument, it already has the schema and he doesn't need the _id + schema = this.schema || schema; + + // Generate ObjectId if it is missing, but it requires a scheme + if (!this.schema && schema.options._id) { + obj = obj || {}; + + if (obj._id === undefined) { + obj._id = new ObjectId(); + } + } + + if (!schema) { + throw new MongooseError.MissingSchemaError(); + } + + this.$__setSchema(schema); + + NodeJSDocument.call(this, obj, fields, skipId, skipInit); + + applyHooks(this, schema, { decorateDoc: true }); + + // apply methods + for (const m in schema.methods) { + this[m] = schema.methods[m]; + } + // apply statics + for (const s in schema.statics) { + this[s] = schema.statics[s]; + } +} + +/*! + * Inherit from the NodeJS document + */ + +Document.prototype = Object.create(NodeJSDocument.prototype); +Document.prototype.constructor = Document; + +/*! + * ignore + */ + +Document.events = new EventEmitter(); + +/*! + * Browser doc exposes the event emitter API + */ + +Document.$emitter = new EventEmitter(); + +['on', 'once', 'emit', 'listeners', 'removeListener', 'setMaxListeners', + 'removeAllListeners', 'addListener'].forEach(function(emitterFn) { + Document[emitterFn] = function() { + return Document.$emitter[emitterFn].apply(Document.$emitter, arguments); + }; +}); + +/*! + * Module exports. + */ + +Document.ValidationError = ValidationError; +module.exports = exports = Document; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast.js new file mode 100644 index 000000000..44d228ebb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast.js @@ -0,0 +1,429 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const CastError = require('./error/cast'); +const StrictModeError = require('./error/strict'); +const Types = require('./schema/index'); +const cast$expr = require('./helpers/query/cast$expr'); +const castTextSearch = require('./schema/operators/text'); +const get = require('./helpers/get'); +const getSchemaDiscriminatorByValue = require('./helpers/discriminator/getSchemaDiscriminatorByValue'); +const isOperator = require('./helpers/query/isOperator'); +const util = require('util'); +const isObject = require('./helpers/isObject'); +const isMongooseObject = require('./helpers/isMongooseObject'); +const utils = require('./utils'); + +const ALLOWED_GEOWITHIN_GEOJSON_TYPES = ['Polygon', 'MultiPolygon']; + +/** + * Handles internal casting for query filters. + * + * @param {Schema} schema + * @param {Object} obj Object to cast + * @param {Object} [options] the query options + * @param {Boolean|"throw"} [options.strict] Wheter to enable all strict options + * @param {Boolean|"throw"} [options.strictQuery] Enable strict Queries + * @param {Boolean} [options.upsert] + * @param {Query} [context] passed to setters + * @api private + */ +module.exports = function cast(schema, obj, options, context) { + if (Array.isArray(obj)) { + throw new Error('Query filter must be an object, got an array ', util.inspect(obj)); + } + + if (obj == null) { + return obj; + } + + if (schema != null && schema.discriminators != null && obj[schema.options.discriminatorKey] != null) { + schema = getSchemaDiscriminatorByValue(schema, obj[schema.options.discriminatorKey]) || schema; + } + + const paths = Object.keys(obj); + let i = paths.length; + let _keys; + let any$conditionals; + let schematype; + let nested; + let path; + let type; + let val; + + options = options || {}; + + while (i--) { + path = paths[i]; + val = obj[path]; + + if (path === '$or' || path === '$nor' || path === '$and') { + if (!Array.isArray(val)) { + throw new CastError('Array', val, path); + } + for (let k = 0; k < val.length; ++k) { + if (val[k] == null || typeof val[k] !== 'object') { + throw new CastError('Object', val[k], path + '.' + k); + } + const discriminatorValue = val[k][schema.options.discriminatorKey]; + if (discriminatorValue == null) { + val[k] = cast(schema, val[k], options, context); + } else { + const discriminatorSchema = getSchemaDiscriminatorByValue(context.schema, discriminatorValue); + val[k] = cast(discriminatorSchema ? discriminatorSchema : schema, val[k], options, context); + } + } + } else if (path === '$where') { + type = typeof val; + + if (type !== 'string' && type !== 'function') { + throw new Error('Must have a string or function for $where'); + } + + if (type === 'function') { + obj[path] = val.toString(); + } + + continue; + } else if (path === '$expr') { + val = cast$expr(val, schema); + continue; + } else if (path === '$elemMatch') { + val = cast(schema, val, options, context); + } else if (path === '$text') { + val = castTextSearch(val, path); + } else { + if (!schema) { + // no casting for Mixed types + continue; + } + + schematype = schema.path(path); + + // Check for embedded discriminator paths + if (!schematype) { + const split = path.split('.'); + let j = split.length; + while (j--) { + const pathFirstHalf = split.slice(0, j).join('.'); + const pathLastHalf = split.slice(j).join('.'); + const _schematype = schema.path(pathFirstHalf); + const discriminatorKey = _schematype && + _schematype.schema && + _schematype.schema.options && + _schematype.schema.options.discriminatorKey; + + // gh-6027: if we haven't found the schematype but this path is + // underneath an embedded discriminator and the embedded discriminator + // key is in the query, use the embedded discriminator schema + if (_schematype != null && + (_schematype.schema && _schematype.schema.discriminators) != null && + discriminatorKey != null && + pathLastHalf !== discriminatorKey) { + const discriminatorVal = get(obj, pathFirstHalf + '.' + discriminatorKey); + const discriminators = _schematype.schema.discriminators; + if (typeof discriminatorVal === 'string' && discriminators[discriminatorVal] != null) { + + schematype = discriminators[discriminatorVal].path(pathLastHalf); + } else if (discriminatorVal != null && + Object.keys(discriminatorVal).length === 1 && + Array.isArray(discriminatorVal.$in) && + discriminatorVal.$in.length === 1 && + typeof discriminatorVal.$in[0] === 'string' && + discriminators[discriminatorVal.$in[0]] != null) { + schematype = discriminators[discriminatorVal.$in[0]].path(pathLastHalf); + } + } + } + } + + if (!schematype) { + // Handle potential embedded array queries + const split = path.split('.'); + let j = split.length; + let pathFirstHalf; + let pathLastHalf; + let remainingConds; + + // Find the part of the var path that is a path of the Schema + while (j--) { + pathFirstHalf = split.slice(0, j).join('.'); + schematype = schema.path(pathFirstHalf); + if (schematype) { + break; + } + } + + // If a substring of the input path resolves to an actual real path... + if (schematype) { + // Apply the casting; similar code for $elemMatch in schema/array.js + if (schematype.caster && schematype.caster.schema) { + remainingConds = {}; + pathLastHalf = split.slice(j).join('.'); + remainingConds[pathLastHalf] = val; + + const ret = cast(schematype.caster.schema, remainingConds, options, context)[pathLastHalf]; + if (ret === void 0) { + delete obj[path]; + } else { + obj[path] = ret; + } + } else { + obj[path] = val; + } + continue; + } + + if (isObject(val)) { + // handle geo schemas that use object notation + // { loc: { long: Number, lat: Number } + + let geo = ''; + if (val.$near) { + geo = '$near'; + } else if (val.$nearSphere) { + geo = '$nearSphere'; + } else if (val.$within) { + geo = '$within'; + } else if (val.$geoIntersects) { + geo = '$geoIntersects'; + } else if (val.$geoWithin) { + geo = '$geoWithin'; + } + + if (geo) { + const numbertype = new Types.Number('__QueryCasting__'); + let value = val[geo]; + + if (val.$maxDistance != null) { + val.$maxDistance = numbertype.castForQuery( + null, + val.$maxDistance, + context + ); + } + if (val.$minDistance != null) { + val.$minDistance = numbertype.castForQuery( + null, + val.$minDistance, + context + ); + } + + if (geo === '$within') { + const withinType = value.$center + || value.$centerSphere + || value.$box + || value.$polygon; + + if (!withinType) { + throw new Error('Bad $within parameter: ' + JSON.stringify(val)); + } + + value = withinType; + } else if (geo === '$near' && + typeof value.type === 'string' && Array.isArray(value.coordinates)) { + // geojson; cast the coordinates + value = value.coordinates; + } else if ((geo === '$near' || geo === '$nearSphere' || geo === '$geoIntersects') && + value.$geometry && typeof value.$geometry.type === 'string' && + Array.isArray(value.$geometry.coordinates)) { + if (value.$maxDistance != null) { + value.$maxDistance = numbertype.castForQuery( + null, + value.$maxDistance, + context + ); + } + if (value.$minDistance != null) { + value.$minDistance = numbertype.castForQuery( + null, + value.$minDistance, + context + ); + } + if (isMongooseObject(value.$geometry)) { + value.$geometry = value.$geometry.toObject({ + transform: false, + virtuals: false + }); + } + value = value.$geometry.coordinates; + } else if (geo === '$geoWithin') { + if (value.$geometry) { + if (isMongooseObject(value.$geometry)) { + value.$geometry = value.$geometry.toObject({ virtuals: false }); + } + const geoWithinType = value.$geometry.type; + if (ALLOWED_GEOWITHIN_GEOJSON_TYPES.indexOf(geoWithinType) === -1) { + throw new Error('Invalid geoJSON type for $geoWithin "' + + geoWithinType + '", must be "Polygon" or "MultiPolygon"'); + } + value = value.$geometry.coordinates; + } else { + value = value.$box || value.$polygon || value.$center || + value.$centerSphere; + if (isMongooseObject(value)) { + value = value.toObject({ virtuals: false }); + } + } + } + + _cast(value, numbertype, context); + continue; + } + } + + if (schema.nested[path]) { + continue; + } + + const strict = 'strict' in options ? options.strict : schema.options.strict; + const strictQuery = getStrictQuery(options, schema._userProvidedOptions, schema.options, context); + if (options.upsert && strict) { + if (strict === 'throw') { + throw new StrictModeError(path); + } + throw new StrictModeError(path, 'Path "' + path + '" is not in ' + + 'schema, strict mode is `true`, and upsert is `true`.'); + } if (strictQuery === 'throw') { + throw new StrictModeError(path, 'Path "' + path + '" is not in ' + + 'schema and strictQuery is \'throw\'.'); + } else if (strictQuery) { + delete obj[path]; + } + } else if (val == null) { + continue; + } else if (utils.isPOJO(val)) { + any$conditionals = Object.keys(val).some(isOperator); + + if (!any$conditionals) { + obj[path] = schematype.castForQuery( + null, + val, + context + ); + } else { + const ks = Object.keys(val); + let $cond; + let k = ks.length; + + while (k--) { + $cond = ks[k]; + nested = val[$cond]; + if ($cond === '$elemMatch') { + if (nested && schematype != null && schematype.schema != null) { + cast(schematype.schema, nested, options, context); + } else if (nested && schematype != null && schematype.$isMongooseArray) { + if (utils.isPOJO(nested) && nested.$not != null) { + cast(schema, nested, options, context); + } else { + val[$cond] = schematype.castForQuery( + $cond, + nested, + context + ); + } + } + } else if ($cond === '$not') { + if (nested && schematype) { + _keys = Object.keys(nested); + if (_keys.length && isOperator(_keys[0])) { + for (const key in nested) { + nested[key] = schematype.castForQuery( + key, + nested[key], + context + ); + } + } else { + val[$cond] = schematype.castForQuery( + $cond, + nested, + context + ); + } + continue; + } + } else { + val[$cond] = schematype.castForQuery( + $cond, + nested, + context + ); + } + + } + } + } else if (Array.isArray(val) && ['Buffer', 'Array'].indexOf(schematype.instance) === -1) { + const casted = []; + const valuesArray = val; + + for (const _val of valuesArray) { + casted.push(schematype.castForQuery( + null, + _val, + context + )); + } + + obj[path] = { $in: casted }; + } else { + obj[path] = schematype.castForQuery( + null, + val, + context + ); + } + } + } + + return obj; +}; + +function _cast(val, numbertype, context) { + if (Array.isArray(val)) { + val.forEach(function(item, i) { + if (Array.isArray(item) || isObject(item)) { + return _cast(item, numbertype, context); + } + val[i] = numbertype.castForQuery(null, item, context); + }); + } else { + const nearKeys = Object.keys(val); + let nearLen = nearKeys.length; + while (nearLen--) { + const nkey = nearKeys[nearLen]; + const item = val[nkey]; + if (Array.isArray(item) || isObject(item)) { + _cast(item, numbertype, context); + val[nkey] = item; + } else { + val[nkey] = numbertype.castForQuery({ val: item, context: context }); + } + } + } +} + +function getStrictQuery(queryOptions, schemaUserProvidedOptions, schemaOptions, context) { + if ('strictQuery' in queryOptions) { + return queryOptions.strictQuery; + } + if ('strictQuery' in schemaUserProvidedOptions) { + return schemaUserProvidedOptions.strictQuery; + } + const mongooseOptions = context && + context.mongooseCollection && + context.mongooseCollection.conn && + context.mongooseCollection.conn.base && + context.mongooseCollection.conn.base.options; + if (mongooseOptions) { + if ('strictQuery' in mongooseOptions) { + return mongooseOptions.strictQuery; + } + } + return schemaOptions.strictQuery; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/bigint.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/bigint.js new file mode 100644 index 000000000..20e01ae58 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/bigint.js @@ -0,0 +1,36 @@ +'use strict'; + +const assert = require('assert'); +const { Long } = require('bson'); + +/** + * Given a value, cast it to a BigInt, or throw an `Error` if the value + * cannot be casted. `null` and `undefined` are considered valid. + * + * @param {Any} value + * @return {Number} + * @throws {Error} if `value` is not one of the allowed values + * @api private + */ + +module.exports = function castBigInt(val) { + if (val == null) { + return val; + } + if (val === '') { + return null; + } + if (typeof val === 'bigint') { + return val; + } + + if (val instanceof Long) { + return val.toBigInt(); + } + + if (typeof val === 'string' || typeof val === 'number') { + return BigInt(val); + } + + assert.ok(false); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/boolean.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/boolean.js new file mode 100644 index 000000000..aaa1fb066 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/boolean.js @@ -0,0 +1,32 @@ +'use strict'; + +const CastError = require('../error/cast'); + +/** + * Given a value, cast it to a boolean, or throw a `CastError` if the value + * cannot be casted. `null` and `undefined` are considered valid. + * + * @param {Any} value + * @param {String} [path] optional the path to set on the CastError + * @return {Boolean|null|undefined} + * @throws {CastError} if `value` is not one of the allowed values + * @api private + */ + +module.exports = function castBoolean(value, path) { + if (module.exports.convertToTrue.has(value)) { + return true; + } + if (module.exports.convertToFalse.has(value)) { + return false; + } + + if (value == null) { + return value; + } + + throw new CastError('boolean', value, path); +}; + +module.exports.convertToTrue = new Set([true, 'true', 1, '1', 'yes']); +module.exports.convertToFalse = new Set([false, 'false', 0, '0', 'no']); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/date.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/date.js new file mode 100644 index 000000000..c7f9b048e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/date.js @@ -0,0 +1,41 @@ +'use strict'; + +const assert = require('assert'); + +module.exports = function castDate(value) { + // Support empty string because of empty form values. Originally introduced + // in https://github.com/Automattic/mongoose/commit/efc72a1898fc3c33a319d915b8c5463a22938dfe + if (value == null || value === '') { + return null; + } + + if (value instanceof Date) { + assert.ok(!isNaN(value.valueOf())); + + return value; + } + + let date; + + assert.ok(typeof value !== 'boolean'); + + if (value instanceof Number || typeof value === 'number') { + date = new Date(value); + } else if (typeof value === 'string' && !isNaN(Number(value)) && (Number(value) >= 275761 || Number(value) < -271820)) { + // string representation of milliseconds take this path + date = new Date(Number(value)); + } else if (typeof value.valueOf === 'function') { + // support for moment.js. This is also the path strings will take because + // strings have a `valueOf()` + date = new Date(value.valueOf()); + } else { + // fallback + date = new Date(value); + } + + if (!isNaN(date.valueOf())) { + return date; + } + + assert.ok(false); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/decimal128.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/decimal128.js new file mode 100644 index 000000000..2bec9975c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/decimal128.js @@ -0,0 +1,39 @@ +'use strict'; + +const Decimal128Type = require('../types/decimal128'); +const assert = require('assert'); + +module.exports = function castDecimal128(value) { + if (value == null) { + return value; + } + + if (typeof value === 'object' && typeof value.$numberDecimal === 'string') { + return Decimal128Type.fromString(value.$numberDecimal); + } + + if (value instanceof Decimal128Type) { + return value; + } + + if (typeof value === 'string') { + return Decimal128Type.fromString(value); + } + + if (typeof Buffer === 'function' && Buffer.isBuffer(value)) { + return new Decimal128Type(value); + } + if (typeof Uint8Array === 'function' && value instanceof Uint8Array) { + return new Decimal128Type(value); + } + + if (typeof value === 'number') { + return Decimal128Type.fromString(String(value)); + } + + if (typeof value.valueOf === 'function' && typeof value.valueOf() === 'string') { + return Decimal128Type.fromString(value.valueOf()); + } + + assert.ok(false); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/number.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/number.js new file mode 100644 index 000000000..cf0362de1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/number.js @@ -0,0 +1,42 @@ +'use strict'; + +const assert = require('assert'); + +/** + * Given a value, cast it to a number, or throw an `Error` if the value + * cannot be casted. `null` and `undefined` are considered valid. + * + * @param {Any} value + * @return {Number} + * @throws {Error} if `value` is not one of the allowed values + * @api private + */ + +module.exports = function castNumber(val) { + if (val == null) { + return val; + } + if (val === '') { + return null; + } + + if (typeof val === 'string' || typeof val === 'boolean') { + val = Number(val); + } + + assert.ok(!isNaN(val)); + if (val instanceof Number) { + return val.valueOf(); + } + if (typeof val === 'number') { + return val; + } + if (!Array.isArray(val) && typeof val.valueOf === 'function') { + return Number(val.valueOf()); + } + if (val.toString && !Array.isArray(val) && val.toString() == Number(val)) { + return Number(val); + } + + assert.ok(false); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/objectid.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/objectid.js new file mode 100644 index 000000000..095a0a10e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/objectid.js @@ -0,0 +1,29 @@ +'use strict'; + +const isBsonType = require('../helpers/isBsonType'); +const ObjectId = require('../types/objectid'); + +module.exports = function castObjectId(value) { + if (value == null) { + return value; + } + + if (isBsonType(value, 'ObjectId')) { + return value; + } + + if (value._id) { + if (isBsonType(value._id, 'ObjectId')) { + return value._id; + } + if (value._id.toString instanceof Function) { + return new ObjectId(value._id.toString()); + } + } + + if (value.toString instanceof Function) { + return new ObjectId(value.toString()); + } + + return new ObjectId(value); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/string.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/string.js new file mode 100644 index 000000000..aabb822c5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cast/string.js @@ -0,0 +1,37 @@ +'use strict'; + +const CastError = require('../error/cast'); + +/** + * Given a value, cast it to a string, or throw a `CastError` if the value + * cannot be casted. `null` and `undefined` are considered valid. + * + * @param {Any} value + * @param {String} [path] optional the path to set on the CastError + * @return {string|null|undefined} + * @throws {CastError} + * @api private + */ + +module.exports = function castString(value, path) { + // If null or undefined + if (value == null) { + return value; + } + + // handle documents being passed + if (value._id && typeof value._id === 'string') { + return value._id; + } + + // Re: gh-647 and gh-3030, we're ok with casting using `toString()` + // **unless** its the default Object.toString, because "[object Object]" + // doesn't really qualify as useful data + if (value.toString && + value.toString !== Object.prototype.toString && + !Array.isArray(value)) { + return value.toString(); + } + + throw new CastError('string', value, path); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/collection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/collection.js new file mode 100644 index 000000000..117a8c695 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/collection.js @@ -0,0 +1,327 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const EventEmitter = require('events').EventEmitter; +const STATES = require('./connectionState'); +const immediate = require('./helpers/immediate'); + +/** + * Abstract Collection constructor + * + * This is the base class that drivers inherit from and implement. + * + * @param {String} name name of the collection + * @param {Connection} conn A MongooseConnection instance + * @param {Object} [opts] optional collection options + * @api public + */ + +function Collection(name, conn, opts) { + if (opts === void 0) { + opts = {}; + } + + this.opts = opts; + this.name = name; + this.collectionName = name; + this.conn = conn; + this.queue = []; + this.buffer = true; + this.emitter = new EventEmitter(); + + if (STATES.connected === this.conn.readyState) { + this.onOpen(); + } +} + +/** + * The collection name + * + * @api public + * @property name + */ + +Collection.prototype.name; + +/** + * The collection name + * + * @api public + * @property collectionName + */ + +Collection.prototype.collectionName; + +/** + * The Connection instance + * + * @api public + * @property conn + */ + +Collection.prototype.conn; + +/** + * Called when the database connects + * + * @api private + */ + +Collection.prototype.onOpen = function() { + this.buffer = false; + immediate(() => this.doQueue()); +}; + +/** + * Called when the database disconnects + * + * @api private + */ + +Collection.prototype.onClose = function() {}; + +/** + * Queues a method for later execution when its + * database connection opens. + * + * @param {String} name name of the method to queue + * @param {Array} args arguments to pass to the method when executed + * @api private + */ + +Collection.prototype.addQueue = function(name, args) { + this.queue.push([name, args]); + return this; +}; + +/** + * Removes a queued method + * + * @param {String} name name of the method to queue + * @param {Array} args arguments to pass to the method when executed + * @api private + */ + +Collection.prototype.removeQueue = function(name, args) { + const index = this.queue.findIndex(v => v[0] === name && v[1] === args); + if (index === -1) { + return false; + } + this.queue.splice(index, 1); + return true; +}; + +/** + * Executes all queued methods and clears the queue. + * + * @api private + */ + +Collection.prototype.doQueue = function() { + for (const method of this.queue) { + if (typeof method[0] === 'function') { + method[0].apply(this, method[1]); + } else { + this[method[0]].apply(this, method[1]); + } + } + this.queue = []; + const _this = this; + immediate(function() { + _this.emitter.emit('queue'); + }); + return this; +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.ensureIndex = function() { + throw new Error('Collection#ensureIndex unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.createIndex = function() { + throw new Error('Collection#createIndex unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.findAndModify = function() { + throw new Error('Collection#findAndModify unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.findOneAndUpdate = function() { + throw new Error('Collection#findOneAndUpdate unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.findOneAndDelete = function() { + throw new Error('Collection#findOneAndDelete unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.findOneAndReplace = function() { + throw new Error('Collection#findOneAndReplace unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.findOne = function() { + throw new Error('Collection#findOne unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.find = function() { + throw new Error('Collection#find unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.insert = function() { + throw new Error('Collection#insert unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.insertOne = function() { + throw new Error('Collection#insertOne unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.insertMany = function() { + throw new Error('Collection#insertMany unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.save = function() { + throw new Error('Collection#save unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.updateOne = function() { + throw new Error('Collection#updateOne unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.updateMany = function() { + throw new Error('Collection#updateMany unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.deleteOne = function() { + throw new Error('Collection#deleteOne unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.deleteMany = function() { + throw new Error('Collection#deleteMany unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.getIndexes = function() { + throw new Error('Collection#getIndexes unimplemented by driver'); +}; + +/** + * Abstract method that drivers must implement. + */ + +Collection.prototype.watch = function() { + throw new Error('Collection#watch unimplemented by driver'); +}; + +/*! + * ignore + */ + +Collection.prototype._shouldBufferCommands = function _shouldBufferCommands() { + const opts = this.opts; + + if (opts.bufferCommands != null) { + return opts.bufferCommands; + } + if (opts && opts.schemaUserProvidedOptions != null && opts.schemaUserProvidedOptions.bufferCommands != null) { + return opts.schemaUserProvidedOptions.bufferCommands; + } + + return this.conn._shouldBufferCommands(); +}; + +/*! + * ignore + */ + +Collection.prototype._getBufferTimeoutMS = function _getBufferTimeoutMS() { + const conn = this.conn; + const opts = this.opts; + + if (opts.bufferTimeoutMS != null) { + return opts.bufferTimeoutMS; + } + if (opts && opts.schemaUserProvidedOptions != null && opts.schemaUserProvidedOptions.bufferTimeoutMS != null) { + return opts.schemaUserProvidedOptions.bufferTimeoutMS; + } + if (conn.config.bufferTimeoutMS != null) { + return conn.config.bufferTimeoutMS; + } + if (conn.base != null && conn.base.get('bufferTimeoutMS') != null) { + return conn.base.get('bufferTimeoutMS'); + } + return 10000; +}; + +/*! + * Module exports. + */ + +module.exports = Collection; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/connection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/connection.js new file mode 100644 index 000000000..6e52d6ca4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/connection.js @@ -0,0 +1,1559 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const ChangeStream = require('./cursor/changeStream'); +const EventEmitter = require('events').EventEmitter; +const Schema = require('./schema'); +const STATES = require('./connectionState'); +const MongooseError = require('./error/index'); +const ServerSelectionError = require('./error/serverSelection'); +const SyncIndexesError = require('./error/syncIndexes'); +const applyPlugins = require('./helpers/schema/applyPlugins'); +const clone = require('./helpers/clone'); +const driver = require('./driver'); +const get = require('./helpers/get'); +const immediate = require('./helpers/immediate'); +const utils = require('./utils'); +const CreateCollectionsError = require('./error/createCollectionsError'); + +const arrayAtomicsSymbol = require('./helpers/symbols').arrayAtomicsSymbol; +const sessionNewDocuments = require('./helpers/symbols').sessionNewDocuments; + +/** + * A list of authentication mechanisms that don't require a password for authentication. + * This is used by the authMechanismDoesNotRequirePassword method. + * + * @api private + */ +const noPasswordAuthMechanisms = [ + 'MONGODB-X509' +]; + +/** + * Connection constructor + * + * For practical reasons, a Connection equals a Db. + * + * @param {Mongoose} base a mongoose instance + * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter + * @event `connecting`: Emitted when `connection.openUri()` is executed on this connection. + * @event `connected`: Emitted when this connection successfully connects to the db. May be emitted _multiple_ times in `reconnected` scenarios. + * @event `open`: Emitted after we `connected` and `onOpen` is executed on all of this connection's models. + * @event `disconnecting`: Emitted when `connection.close()` was executed. + * @event `disconnected`: Emitted after getting disconnected from the db. + * @event `close`: Emitted after we `disconnected` and `onClose` executed on all of this connection's models. + * @event `reconnected`: Emitted after we `connected` and subsequently `disconnected`, followed by successfully another successful connection. + * @event `error`: Emitted when an error occurs on this connection. + * @event `operation-start`: Emitted when a call to the MongoDB Node.js driver, like a `find()` or `insertOne()`, happens on any collection tied to this connection. + * @event `operation-end`: Emitted when a call to the MongoDB Node.js driver, like a `find()` or `insertOne()`, either succeeds or errors. + * @api public + */ + +function Connection(base) { + this.base = base; + this.collections = {}; + this.models = {}; + this.config = {}; + this.replica = false; + this.options = null; + this.otherDbs = []; // FIXME: To be replaced with relatedDbs + this.relatedDbs = {}; // Hashmap of other dbs that share underlying connection + this.states = STATES; + this._readyState = STATES.disconnected; + this._closeCalled = false; + this._hasOpened = false; + this.plugins = []; + if (typeof base === 'undefined' || !base.connections.length) { + this.id = 0; + } else { + this.id = base.nextConnectionId; + } + this._queue = []; +} + +/*! + * Inherit from EventEmitter + */ + +Object.setPrototypeOf(Connection.prototype, EventEmitter.prototype); + +/** + * Connection ready state + * + * - 0 = disconnected + * - 1 = connected + * - 2 = connecting + * - 3 = disconnecting + * + * Each state change emits its associated event name. + * + * #### Example: + * + * conn.on('connected', callback); + * conn.on('disconnected', callback); + * + * @property readyState + * @memberOf Connection + * @instance + * @api public + */ + +Object.defineProperty(Connection.prototype, 'readyState', { + get: function() { + return this._readyState; + }, + set: function(val) { + if (!(val in STATES)) { + throw new Error('Invalid connection state: ' + val); + } + + if (this._readyState !== val) { + this._readyState = val; + // [legacy] loop over the otherDbs on this connection and change their state + for (const db of this.otherDbs) { + db.readyState = val; + } + + if (STATES.connected === val) { + this._hasOpened = true; + } + + this.emit(STATES[val]); + } + } +}); + +/** + * Gets the value of the option `key`. Equivalent to `conn.options[key]` + * + * #### Example: + * + * conn.get('test'); // returns the 'test' value + * + * @param {String} key + * @method get + * @api public + */ + +Connection.prototype.get = function(key) { + if (this.config.hasOwnProperty(key)) { + return this.config[key]; + } + + return get(this.options, key); +}; + +/** + * Sets the value of the option `key`. Equivalent to `conn.options[key] = val` + * + * Supported options include: + * + * - `maxTimeMS`: Set [`maxTimeMS`](https://mongoosejs.com/docs/api/query.html#Query.prototype.maxTimeMS()) for all queries on this connection. + * - 'debug': If `true`, prints the operations mongoose sends to MongoDB to the console. If a writable stream is passed, it will log to that stream, without colorization. If a callback function is passed, it will receive the collection name, the method name, then all arugments passed to the method. For example, if you wanted to replicate the default logging, you could output from the callback `Mongoose: ${collectionName}.${methodName}(${methodArgs.join(', ')})`. + * + * #### Example: + * + * conn.set('test', 'foo'); + * conn.get('test'); // 'foo' + * conn.options.test; // 'foo' + * + * @param {String} key + * @param {Any} val + * @method set + * @api public + */ + +Connection.prototype.set = function(key, val) { + if (this.config.hasOwnProperty(key)) { + this.config[key] = val; + return val; + } + + this.options = this.options || {}; + this.options[key] = val; + return val; +}; + +/** + * A hash of the collections associated with this connection + * + * @property collections + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.collections; + +/** + * The name of the database this connection points to. + * + * #### Example: + * + * mongoose.createConnection('mongodb://127.0.0.1:27017/mydb').name; // "mydb" + * + * @property name + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.name; + +/** + * A [POJO](https://masteringjs.io/tutorials/fundamentals/pojo) containing + * a map from model names to models. Contains all models that have been + * added to this connection using [`Connection#model()`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.model()). + * + * #### Example: + * + * const conn = mongoose.createConnection(); + * const Test = conn.model('Test', mongoose.Schema({ name: String })); + * + * Object.keys(conn.models).length; // 1 + * conn.models.Test === Test; // true + * + * @property models + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.models; + +/** + * A number identifier for this connection. Used for debugging when + * you have [multiple connections](https://mongoosejs.com/docs/connections.html#multiple_connections). + * + * #### Example: + * + * // The default connection has `id = 0` + * mongoose.connection.id; // 0 + * + * // If you create a new connection, Mongoose increments id + * const conn = mongoose.createConnection(); + * conn.id; // 1 + * + * @property id + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.id; + +/** + * The plugins that will be applied to all models created on this connection. + * + * #### Example: + * + * const db = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb'); + * db.plugin(() => console.log('Applied')); + * db.plugins.length; // 1 + * + * db.model('Test', new Schema({})); // Prints "Applied" + * + * @property plugins + * @memberOf Connection + * @instance + * @api public + */ + +Object.defineProperty(Connection.prototype, 'plugins', { + configurable: false, + enumerable: true, + writable: true +}); + +/** + * The host name portion of the URI. If multiple hosts, such as a replica set, + * this will contain the first host name in the URI + * + * #### Example: + * + * mongoose.createConnection('mongodb://127.0.0.1:27017/mydb').host; // "127.0.0.1" + * + * @property host + * @memberOf Connection + * @instance + * @api public + */ + +Object.defineProperty(Connection.prototype, 'host', { + configurable: true, + enumerable: true, + writable: true +}); + +/** + * The port portion of the URI. If multiple hosts, such as a replica set, + * this will contain the port from the first host name in the URI. + * + * #### Example: + * + * mongoose.createConnection('mongodb://127.0.0.1:27017/mydb').port; // 27017 + * + * @property port + * @memberOf Connection + * @instance + * @api public + */ + +Object.defineProperty(Connection.prototype, 'port', { + configurable: true, + enumerable: true, + writable: true +}); + +/** + * The username specified in the URI + * + * #### Example: + * + * mongoose.createConnection('mongodb://val:psw@127.0.0.1:27017/mydb').user; // "val" + * + * @property user + * @memberOf Connection + * @instance + * @api public + */ + +Object.defineProperty(Connection.prototype, 'user', { + configurable: true, + enumerable: true, + writable: true +}); + +/** + * The password specified in the URI + * + * #### Example: + * + * mongoose.createConnection('mongodb://val:psw@127.0.0.1:27017/mydb').pass; // "psw" + * + * @property pass + * @memberOf Connection + * @instance + * @api public + */ + +Object.defineProperty(Connection.prototype, 'pass', { + configurable: true, + enumerable: true, + writable: true +}); + +/** + * The mongodb.Db instance, set when the connection is opened + * + * @property db + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.db; + +/** + * The MongoClient instance this connection uses to talk to MongoDB. Mongoose automatically sets this property + * when the connection is opened. + * + * @property client + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.client; + +/** + * A hash of the global options that are associated with this connection + * + * @property config + * @memberOf Connection + * @instance + * @api public + */ + +Connection.prototype.config; + +/** + * Helper for `createCollection()`. Will explicitly create the given collection + * with specified options. Used to create [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections/) + * and [views](https://www.mongodb.com/docs/manual/core/views/) from mongoose. + * + * Options are passed down without modification to the [MongoDB driver's `createCollection()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createCollection) + * + * @method createCollection + * @param {string} collection The collection to create + * @param {Object} [options] see [MongoDB driver docs](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createCollection) + * @return {Promise} + * @api public + */ + +Connection.prototype.createCollection = async function createCollection(collection, options) { + if (typeof options === 'function' || (arguments.length >= 3 && typeof arguments[2] === 'function')) { + throw new MongooseError('Connection.prototype.createCollection() no longer accepts a callback'); + } + + await this._waitForConnect(); + + return this.db.createCollection(collection, options); +}; + +/** + * Calls `createCollection()` on a models in a series. + * + * @method createCollections + * @param {Boolean} continueOnError When true, will continue to create collections and create a new error class for the collections that errored. + * @returns {Promise} + * @api public + */ + +Connection.prototype.createCollections = async function createCollections(options = {}) { + const result = {}; + const errorsMap = { }; + + const { continueOnError } = options; + delete options.continueOnError; + for (const model of Object.values(this.models)) { + try { + result[model.modelName] = await model.createCollection({}); + } catch (err) { + if (!continueOnError) { + errorsMap[model.modelName] = err; + break; + } else { + result[model.modelName] = err; + } + } + } + + if (!continueOnError && Object.keys(errorsMap).length) { + const message = Object.entries(errorsMap).map(([modelName, err]) => `${modelName}: ${err.message}`).join(', '); + const createCollectionsError = new CreateCollectionsError(message, errorsMap); + throw createCollectionsError; + } + return result; +}; + +/** + * A convenience wrapper for `connection.client.withSession()`. + * + * #### Example: + * + * await conn.withSession(async session => { + * const doc = await TestModel.findOne().session(session); + * }); + * + * @method withSession + * @param {Function} executor called with 1 argument: a `ClientSession` instance + * @return {Promise} resolves to the return value of the executor function + * @api public + */ + +Connection.prototype.withSession = async function withSession(executor) { + if (arguments.length === 0) { + throw new Error('Please provide an executor function'); + } + return await this.client.withSession(executor); +}; + +/** + * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions) + * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/), + * and [transactions](https://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html). + * + * #### Example: + * + * const session = await conn.startSession(); + * let doc = await Person.findOne({ name: 'Ned Stark' }, null, { session }); + * await doc.remove(); + * // `doc` will always be null, even if reading from a replica set + * // secondary. Without causal consistency, it is possible to + * // get a doc back from the below query if the query reads from a + * // secondary that is experiencing replication lag. + * doc = await Person.findOne({ name: 'Ned Stark' }, null, { session, readPreference: 'secondary' }); + * + * + * @method startSession + * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#startSession) + * @param {Boolean} [options.causalConsistency=true] set to false to disable causal consistency + * @return {Promise} promise that resolves to a MongoDB driver `ClientSession` + * @api public + */ + +Connection.prototype.startSession = async function startSession(options) { + if (arguments.length >= 2 && typeof arguments[1] === 'function') { + throw new MongooseError('Connection.prototype.startSession() no longer accepts a callback'); + } + + await this._waitForConnect(); + + const session = this.client.startSession(options); + return session; +}; + +/** + * _Requires MongoDB >= 3.6.0._ Executes the wrapped async function + * in a transaction. Mongoose will commit the transaction if the + * async function executes successfully and attempt to retry if + * there was a retriable error. + * + * Calls the MongoDB driver's [`session.withTransaction()`](https://mongodb.github.io/node-mongodb-native/4.9/classes/ClientSession.html#withTransaction), + * but also handles resetting Mongoose document state as shown below. + * + * #### Example: + * + * const doc = new Person({ name: 'Will Riker' }); + * await db.transaction(async function setRank(session) { + * doc.rank = 'Captain'; + * await doc.save({ session }); + * doc.isNew; // false + * + * // Throw an error to abort the transaction + * throw new Error('Oops!'); + * },{ readPreference: 'primary' }).catch(() => {}); + * + * // true, `transaction()` reset the document's state because the + * // transaction was aborted. + * doc.isNew; + * + * @method transaction + * @param {Function} fn Function to execute in a transaction + * @param {mongodb.TransactionOptions} [options] Optional settings for the transaction + * @return {Promise} promise that is fulfilled if Mongoose successfully committed the transaction, or rejects if the transaction was aborted or if Mongoose failed to commit the transaction. If fulfilled, the promise resolves to a MongoDB command result. + * @api public + */ + +Connection.prototype.transaction = function transaction(fn, options) { + return this.startSession().then(session => { + session[sessionNewDocuments] = new Map(); + return session.withTransaction(() => _wrapUserTransaction(fn, session, this.base), options). + then(res => { + delete session[sessionNewDocuments]; + return res; + }). + catch(err => { + delete session[sessionNewDocuments]; + throw err; + }). + finally(() => { + session.endSession().catch(() => {}); + }); + }); +}; + +/*! + * Reset document state in between transaction retries re: gh-13698 + */ + +async function _wrapUserTransaction(fn, session, mongoose) { + try { + const res = mongoose.transactionAsyncLocalStorage == null + ? await fn(session) + : await new Promise(resolve => { + mongoose.transactionAsyncLocalStorage.run( + { session }, + () => resolve(fn(session)) + ); + }); + return res; + } catch (err) { + _resetSessionDocuments(session); + throw err; + } +} + +/*! + * If transaction was aborted, we need to reset newly inserted documents' `isNew`. + */ +function _resetSessionDocuments(session) { + for (const doc of session[sessionNewDocuments].keys()) { + const state = session[sessionNewDocuments].get(doc); + if (state.hasOwnProperty('isNew')) { + doc.$isNew = state.isNew; + } + if (state.hasOwnProperty('versionKey')) { + doc.set(doc.schema.options.versionKey, state.versionKey); + } + + if (state.modifiedPaths.length > 0 && doc.$__.activePaths.states.modify == null) { + doc.$__.activePaths.states.modify = {}; + } + for (const path of state.modifiedPaths) { + const currentState = doc.$__.activePaths.paths[path]; + if (currentState != null) { + delete doc.$__.activePaths[currentState][path]; + } + doc.$__.activePaths.paths[path] = 'modify'; + doc.$__.activePaths.states.modify[path] = true; + } + + for (const path of state.atomics.keys()) { + const val = doc.$__getValue(path); + if (val == null) { + continue; + } + val[arrayAtomicsSymbol] = state.atomics.get(path); + } + } +} + +/** + * Helper for `dropCollection()`. Will delete the given collection, including + * all documents and indexes. + * + * @method dropCollection + * @param {string} collection The collection to delete + * @return {Promise} + * @api public + */ + +Connection.prototype.dropCollection = async function dropCollection(collection) { + if (arguments.length >= 2 && typeof arguments[1] === 'function') { + throw new MongooseError('Connection.prototype.dropCollection() no longer accepts a callback'); + } + + await this._waitForConnect(); + + return this.db.dropCollection(collection); +}; + +/** + * Waits for connection to be established, so the connection has a `client` + * + * @return Promise + * @api private + */ + +Connection.prototype._waitForConnect = async function _waitForConnect() { + if ((this.readyState === STATES.connecting || this.readyState === STATES.disconnected) && this._shouldBufferCommands()) { + await new Promise(resolve => { + this._queue.push({ fn: resolve }); + }); + } +}; + +/** + * Helper for MongoDB Node driver's `listCollections()`. + * Returns an array of collection objects. + * + * @method listCollections + * @return {Promise} + * @api public + */ + +Connection.prototype.listCollections = async function listCollections() { + await this._waitForConnect(); + + const cursor = this.db.listCollections(); + return await cursor.toArray(); +}; + +/** + * Helper for MongoDB Node driver's `listDatabases()`. + * Returns an object with a `databases` property that contains an + * array of database objects. + * + * #### Example: + * const { databases } = await mongoose.connection.listDatabases(); + * databases; // [{ name: 'mongoose_test', sizeOnDisk: 0, empty: false }] + * + * @method listCollections + * @return {Promise<{ databases: Array<{ name: string }> }>} + * @api public + */ + +Connection.prototype.listDatabases = async function listDatabases() { + // Implemented in `lib/drivers/node-mongodb-native/connection.js` + throw new MongooseError('listDatabases() not implemented by driver'); +}; + +/** + * Helper for `dropDatabase()`. Deletes the given database, including all + * collections, documents, and indexes. + * + * #### Example: + * + * const conn = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb'); + * // Deletes the entire 'mydb' database + * await conn.dropDatabase(); + * + * @method dropDatabase + * @return {Promise} + * @api public + */ + +Connection.prototype.dropDatabase = async function dropDatabase() { + if (arguments.length >= 1 && typeof arguments[0] === 'function') { + throw new MongooseError('Connection.prototype.dropDatabase() no longer accepts a callback'); + } + + await this._waitForConnect(); + + // If `dropDatabase()` is called, this model's collection will not be + // init-ed. It is sufficiently common to call `dropDatabase()` after + // `mongoose.connect()` but before creating models that we want to + // support this. See gh-6796 + for (const model of Object.values(this.models)) { + delete model.$init; + } + + return this.db.dropDatabase(); +}; + +/*! + * ignore + */ + +Connection.prototype._shouldBufferCommands = function _shouldBufferCommands() { + if (this.config.bufferCommands != null) { + return this.config.bufferCommands; + } + if (this.base.get('bufferCommands') != null) { + return this.base.get('bufferCommands'); + } + return true; +}; + +/** + * error + * + * Graceful error handling, passes error to callback + * if available, else emits error on the connection. + * + * @param {Error} err + * @param {Function} callback optional + * @emits "error" Emits the `error` event with the given `err`, unless a callback is specified + * @returns {Promise|null} Returns a rejected Promise if no `callback` is given. + * @api private + */ + +Connection.prototype.error = function(err, callback) { + if (callback) { + callback(err); + return null; + } + if (this.listeners('error').length > 0) { + this.emit('error', err); + } + return Promise.reject(err); +}; + +/** + * Called when the connection is opened + * + * @api private + */ + +Connection.prototype.onOpen = function() { + this.readyState = STATES.connected; + + for (const d of this._queue) { + d.fn.apply(d.ctx, d.args); + } + this._queue = []; + + // avoid having the collection subscribe to our event emitter + // to prevent 0.3 warning + for (const i in this.collections) { + if (utils.object.hasOwnProperty(this.collections, i)) { + this.collections[i].onOpen(); + } + } + + this.emit('open'); +}; + +/** + * Opens the connection with a URI using `MongoClient.connect()`. + * + * @param {String} uri The URI to connect with. + * @param {Object} [options] Passed on to [`MongoClient.connect`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#connect-1) + * @param {Boolean} [options.bufferCommands=true] Mongoose specific option. Set to false to [disable buffering](https://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection. + * @param {Number} [options.bufferTimeoutMS=10000] Mongoose specific option. If `bufferCommands` is true, Mongoose will throw an error after `bufferTimeoutMS` if the operation is still buffered. + * @param {String} [options.dbName] The name of the database we want to use. If not provided, use database name from connection string. + * @param {String} [options.user] username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility. + * @param {String} [options.pass] password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility. + * @param {Number} [options.maxPoolSize=100] The maximum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs). + * @param {Number} [options.minPoolSize=0] The minimum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs). + * @param {Number} [options.serverSelectionTimeoutMS] If `useUnifiedTopology = true`, the MongoDB driver will try to find a server to send any given operation to, and keep retrying for `serverSelectionTimeoutMS` milliseconds before erroring out. If not set, the MongoDB driver defaults to using `30000` (30 seconds). + * @param {Number} [options.heartbeatFrequencyMS] If `useUnifiedTopology = true`, the MongoDB driver sends a heartbeat every `heartbeatFrequencyMS` to check on the status of the connection. A heartbeat is subject to `serverSelectionTimeoutMS`, so the MongoDB driver will retry failed heartbeats for up to 30 seconds by default. Mongoose only emits a `'disconnected'` event after a heartbeat has failed, so you may want to decrease this setting to reduce the time between when your server goes down and when Mongoose emits `'disconnected'`. We recommend you do **not** set this setting below 1000, too many heartbeats can lead to performance degradation. + * @param {Boolean} [options.autoIndex=true] Mongoose-specific option. Set to false to disable automatic index creation for all models associated with this connection. + * @param {Class} [options.promiseLibrary] Sets the [underlying driver's promise library](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html#promiseLibrary). + * @param {Number} [options.socketTimeoutMS=0] How long the MongoDB driver will wait before killing a socket due to inactivity _after initial connection_. A socket may be inactive because of either no activity or a long-running operation. `socketTimeoutMS` defaults to 0, which means Node.js will not time out the socket due to inactivity. This option is passed to [Node.js `socket#setTimeout()` function](https://nodejs.org/api/net.html#net_socket_settimeout_timeout_callback) after the MongoDB driver successfully completes. + * @param {Number} [options.family=0] Passed transparently to [Node.js' `dns.lookup()`](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback) function. May be either `0, `4`, or `6`. `4` means use IPv4 only, `6` means use IPv6 only, `0` means try both. + * @param {Boolean} [options.autoCreate=false] Set to `true` to make Mongoose automatically call `createCollection()` on every model created on this connection. + * @returns {Promise} + * @api public + */ + +Connection.prototype.openUri = async function openUri(uri, options) { + if (this.readyState === STATES.connecting || this.readyState === STATES.connected) { + if (this._connectionString === uri) { + return this; + } + } + + this._closeCalled = false; + + // Internal option to skip `await this.$initialConnection` in + // this function for `createConnection()`. Because otherwise + // `createConnection()` would have an uncatchable error. + let _fireAndForget = false; + if (options && '_fireAndForget' in options) { + _fireAndForget = options._fireAndForget; + delete options._fireAndForget; + } + + try { + _validateArgs.apply(arguments); + } catch (err) { + if (_fireAndForget) { + throw err; + } + this.$initialConnection = Promise.reject(err); + throw err; + } + + this.$initialConnection = this.createClient(uri, options). + then(() => this). + catch(err => { + this.readyState = STATES.disconnected; + if (this.listeners('error').length > 0) { + immediate(() => this.emit('error', err)); + } + throw err; + }); + + for (const model of Object.values(this.models)) { + // Errors handled internally, so safe to ignore error + model.init().catch(function $modelInitNoop() {}); + } + + // `createConnection()` calls this `openUri()` function without + // awaiting on the result, so we set this option to rely on + // `asPromise()` to handle any errors. + if (_fireAndForget) { + return this; + } + + try { + await this.$initialConnection; + } catch (err) { + throw _handleConnectionErrors(err); + } + + return this; +}; + +/*! + * Treat `on('error')` handlers as handling the initialConnection promise + * to avoid uncaught exceptions when using `on('error')`. See gh-14377. + */ + +Connection.prototype.on = function on(event, callback) { + if (event === 'error' && this.$initialConnection) { + this.$initialConnection.catch(() => {}); + } + return EventEmitter.prototype.on.call(this, event, callback); +}; + +/*! + * Treat `once('error')` handlers as handling the initialConnection promise + * to avoid uncaught exceptions when using `on('error')`. See gh-14377. + */ + +Connection.prototype.once = function on(event, callback) { + if (event === 'error' && this.$initialConnection) { + this.$initialConnection.catch(() => {}); + } + return EventEmitter.prototype.once.call(this, event, callback); +}; + +/*! + * ignore + */ + +function _validateArgs(uri, options, callback) { + if (typeof options === 'function' && callback == null) { + throw new MongooseError('Connection.prototype.openUri() no longer accepts a callback'); + } else if (typeof callback === 'function') { + throw new MongooseError('Connection.prototype.openUri() no longer accepts a callback'); + } +} + +/*! + * ignore + */ + +function _handleConnectionErrors(err) { + if (err?.name === 'MongoServerSelectionError') { + const originalError = err; + err = new ServerSelectionError(); + err.assimilateError(originalError); + } + + return err; +} + +/** + * Destroy the connection. Similar to [`.close`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.close()), + * but also removes the connection from Mongoose's `connections` list and prevents the + * connection from ever being re-opened. + * + * @param {Boolean} [force] + * @returns {Promise} + */ + +Connection.prototype.destroy = async function destroy(force) { + if (typeof force === 'function' || (arguments.length === 2 && typeof arguments[1] === 'function')) { + throw new MongooseError('Connection.prototype.destroy() no longer accepts a callback'); + } + + if (force != null && typeof force === 'object') { + this.$wasForceClosed = !!force.force; + } else { + this.$wasForceClosed = !!force; + } + + return this._close(force, true); +}; + +/** + * Closes the connection + * + * @param {Boolean} [force] optional + * @return {Promise} + * @api public + */ + +Connection.prototype.close = async function close(force) { + if (typeof force === 'function' || (arguments.length === 2 && typeof arguments[1] === 'function')) { + throw new MongooseError('Connection.prototype.close() no longer accepts a callback'); + } + + if (force != null && typeof force === 'object') { + this.$wasForceClosed = !!force.force; + } else { + this.$wasForceClosed = !!force; + } + + for (const model of Object.values(this.models)) { + // If manually disconnecting, make sure to clear each model's `$init` + // promise, so Mongoose knows to re-run `init()` in case the + // connection is re-opened. See gh-12047. + delete model.$init; + } + + return this._close(force, false); +}; + +/** + * Handles closing the connection + * + * @param {Boolean} force + * @param {Boolean} destroy + * @returns {Connection} this + * @api private + */ +Connection.prototype._close = async function _close(force, destroy) { + const _this = this; + const closeCalled = this._closeCalled; + this._closeCalled = true; + this._destroyCalled = destroy; + if (this.client != null) { + this.client._closeCalled = true; + this.client._destroyCalled = destroy; + } + + const conn = this; + switch (this.readyState) { + case STATES.disconnected: + if (destroy && this.base.connections.indexOf(conn) !== -1) { + this.base.connections.splice(this.base.connections.indexOf(conn), 1); + } + if (!closeCalled) { + await this.doClose(force); + this.onClose(force); + } + break; + + case STATES.connected: + this.readyState = STATES.disconnecting; + await this.doClose(force); + if (destroy && _this.base.connections.indexOf(conn) !== -1) { + this.base.connections.splice(this.base.connections.indexOf(conn), 1); + } + this.onClose(force); + + break; + case STATES.connecting: + return new Promise((resolve, reject) => { + const _rerunClose = () => { + this.removeListener('open', _rerunClose); + this.removeListener('error', _rerunClose); + if (destroy) { + this.destroy(force).then(resolve, reject); + } else { + this.close(force).then(resolve, reject); + } + }; + + this.once('open', _rerunClose); + this.once('error', _rerunClose); + }); + + case STATES.disconnecting: + return new Promise(resolve => { + this.once('close', () => { + if (destroy && this.base.connections.indexOf(conn) !== -1) { + this.base.connections.splice(this.base.connections.indexOf(conn), 1); + } + resolve(); + }); + }); + } + + return this; +}; + +/** + * Abstract method that drivers must implement. + * + * @api private + */ + +Connection.prototype.doClose = function() { + throw new Error('Connection#doClose unimplemented by driver'); +}; + +/** + * Called when the connection closes + * + * @api private + */ + +Connection.prototype.onClose = function(force) { + this.readyState = STATES.disconnected; + + // avoid having the collection subscribe to our event emitter + // to prevent 0.3 warning + for (const i in this.collections) { + if (utils.object.hasOwnProperty(this.collections, i)) { + this.collections[i].onClose(force); + } + } + + this.emit('close', force); + + for (const db of this.otherDbs) { + this._destroyCalled ? db.destroy({ force: force, skipCloseClient: true }) : db.close({ force: force, skipCloseClient: true }); + } +}; + +/** + * Retrieves a raw collection instance, creating it if not cached. + * This method returns a thin wrapper around a [MongoDB Node.js driver collection]([MongoDB Node.js driver collection](https://mongodb.github.io/node-mongodb-native/Next/classes/Collection.html)). + * Using a Collection bypasses Mongoose middleware, validation, and casting, + * letting you use [MongoDB Node.js driver](https://mongodb.github.io/node-mongodb-native/) functionality directly. + * + * @param {String} name of the collection + * @param {Object} [options] optional collection options + * @return {Collection} collection instance + * @api public + */ + +Connection.prototype.collection = function(name, options) { + const defaultOptions = { + autoIndex: this.config.autoIndex != null ? this.config.autoIndex : this.base.options.autoIndex, + autoCreate: this.config.autoCreate != null ? this.config.autoCreate : this.base.options.autoCreate, + autoSearchIndex: this.config.autoSearchIndex != null ? this.config.autoSearchIndex : this.base.options.autoSearchIndex + }; + options = Object.assign({}, defaultOptions, options ? clone(options) : {}); + options.$wasForceClosed = this.$wasForceClosed; + const Collection = this.base && this.base.__driver && this.base.__driver.Collection || driver.get().Collection; + if (!(name in this.collections)) { + this.collections[name] = new Collection(name, this, options); + } + return this.collections[name]; +}; + +/** + * Declares a plugin executed on all schemas you pass to `conn.model()` + * + * Equivalent to calling `.plugin(fn)` on each schema you create. + * + * #### Example: + * + * const db = mongoose.createConnection('mongodb://127.0.0.1:27017/mydb'); + * db.plugin(() => console.log('Applied')); + * db.plugins.length; // 1 + * + * db.model('Test', new Schema({})); // Prints "Applied" + * + * @param {Function} fn plugin callback + * @param {Object} [opts] optional options + * @return {Connection} this + * @see plugins https://mongoosejs.com/docs/plugins.html + * @api public + */ + +Connection.prototype.plugin = function(fn, opts) { + this.plugins.push([fn, opts]); + return this; +}; + +/** + * Defines or retrieves a model. + * + * const mongoose = require('mongoose'); + * const db = mongoose.createConnection(..); + * db.model('Venue', new Schema(..)); + * const Ticket = db.model('Ticket', new Schema(..)); + * const Venue = db.model('Venue'); + * + * _When no `collection` argument is passed, Mongoose produces a collection name by passing the model `name` to the `utils.toCollectionName` method. This method pluralizes the name. If you don't like this behavior, either pass a collection name or set your schemas collection name option._ + * + * #### Example: + * + * const schema = new Schema({ name: String }, { collection: 'actor' }); + * + * // or + * + * schema.set('collection', 'actor'); + * + * // or + * + * const collectionName = 'actor' + * const M = conn.model('Actor', schema, collectionName) + * + * @param {String|Function} name the model name or class extending Model + * @param {Schema} [schema] a schema. necessary when defining a model + * @param {String} [collection] name of mongodb collection (optional) if not given it will be induced from model name + * @param {Object} [options] + * @param {Boolean} [options.overwriteModels=false] If true, overwrite existing models with the same name to avoid `OverwriteModelError` + * @see Mongoose#model https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model() + * @return {Model} The compiled model + * @api public + */ + +Connection.prototype.model = function(name, schema, collection, options) { + if (!(this instanceof Connection)) { + throw new MongooseError('`connection.model()` should not be run with ' + + '`new`. If you are doing `new db.model(foo)(bar)`, use ' + + '`db.model(foo)(bar)` instead'); + } + + let fn; + if (typeof name === 'function') { + fn = name; + name = fn.name; + } + + // collection name discovery + if (typeof schema === 'string') { + collection = schema; + schema = false; + } + + if (utils.isObject(schema)) { + if (!schema.instanceOfSchema) { + schema = new Schema(schema); + } else if (!(schema instanceof this.base.Schema)) { + schema = schema._clone(this.base.Schema); + } + } + if (schema && !schema.instanceOfSchema) { + throw new Error('The 2nd parameter to `mongoose.model()` should be a ' + + 'schema or a POJO'); + } + + const defaultOptions = { cache: false, overwriteModels: this.base.options.overwriteModels }; + const opts = Object.assign(defaultOptions, options, { connection: this }); + if (this.models[name] && !collection && opts.overwriteModels !== true) { + // model exists but we are not subclassing with custom collection + if (schema && schema.instanceOfSchema && schema !== this.models[name].schema) { + throw new MongooseError.OverwriteModelError(name); + } + return this.models[name]; + } + + let model; + + if (schema && schema.instanceOfSchema) { + applyPlugins(schema, this.plugins, null, '$connectionPluginsApplied'); + + // compile a model + model = this.base._model(fn || name, schema, collection, opts); + + // only the first model with this name is cached to allow + // for one-offs with custom collection names etc. + if (!this.models[name]) { + this.models[name] = model; + } + + // Errors handled internally, so safe to ignore error + model.init().catch(function $modelInitNoop() {}); + + return model; + } + + if (this.models[name] && collection) { + // subclassing current model with alternate collection + model = this.models[name]; + schema = model.prototype.schema; + const sub = model.__subclass(this, schema, collection); + // do not cache the sub model + return sub; + } + + if (arguments.length === 1) { + model = this.models[name]; + if (!model) { + throw new MongooseError.MissingSchemaError(name); + } + return model; + } + + if (!model) { + throw new MongooseError.MissingSchemaError(name); + } + + if (this === model.prototype.db + && (!collection || collection === model.collection.name)) { + // model already uses this connection. + + // only the first model with this name is cached to allow + // for one-offs with custom collection names etc. + if (!this.models[name]) { + this.models[name] = model; + } + + return model; + } + this.models[name] = model.__subclass(this, schema, collection); + return this.models[name]; +}; + +/** + * Removes the model named `name` from this connection, if it exists. You can + * use this function to clean up any models you created in your tests to + * prevent OverwriteModelErrors. + * + * #### Example: + * + * conn.model('User', new Schema({ name: String })); + * console.log(conn.model('User')); // Model object + * conn.deleteModel('User'); + * console.log(conn.model('User')); // undefined + * + * // Usually useful in a Mocha `afterEach()` hook + * afterEach(function() { + * conn.deleteModel(/.+/); // Delete every model + * }); + * + * @api public + * @param {String|RegExp} name if string, the name of the model to remove. If regexp, removes all models whose name matches the regexp. + * @return {Connection} this + */ + +Connection.prototype.deleteModel = function(name) { + if (typeof name === 'string') { + const model = this.model(name); + if (model == null) { + return this; + } + const collectionName = model.collection.name; + delete this.models[name]; + delete this.collections[collectionName]; + + this.emit('deleteModel', model); + } else if (name instanceof RegExp) { + const pattern = name; + const names = this.modelNames(); + for (const name of names) { + if (pattern.test(name)) { + this.deleteModel(name); + } + } + } else { + throw new Error('First parameter to `deleteModel()` must be a string ' + + 'or regexp, got "' + name + '"'); + } + + return this; +}; + +/** + * Watches the entire underlying database for changes. Similar to + * [`Model.watch()`](https://mongoosejs.com/docs/api/model.html#Model.watch()). + * + * This function does **not** trigger any middleware. In particular, it + * does **not** trigger aggregate middleware. + * + * The ChangeStream object is an event emitter that emits the following events: + * + * - 'change': A change occurred, see below example + * - 'error': An unrecoverable error occurred. In particular, change streams currently error out if they lose connection to the replica set primary. Follow [this GitHub issue](https://github.com/Automattic/mongoose/issues/6799) for updates. + * - 'end': Emitted if the underlying stream is closed + * - 'close': Emitted if the underlying stream is closed + * + * #### Example: + * + * const User = conn.model('User', new Schema({ name: String })); + * + * const changeStream = conn.watch().on('change', data => console.log(data)); + * + * // Triggers a 'change' event on the change stream. + * await User.create({ name: 'test' }); + * + * @api public + * @param {Array} [pipeline] + * @param {Object} [options] passed without changes to [the MongoDB driver's `Db#watch()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#watch) + * @return {ChangeStream} mongoose-specific change stream wrapper, inherits from EventEmitter + */ + +Connection.prototype.watch = function(pipeline, options) { + const changeStreamThunk = cb => { + immediate(() => { + if (this.readyState === STATES.connecting) { + this.once('open', function() { + const driverChangeStream = this.db.watch(pipeline, options); + cb(null, driverChangeStream); + }); + } else { + const driverChangeStream = this.db.watch(pipeline, options); + cb(null, driverChangeStream); + } + }); + }; + + const changeStream = new ChangeStream(changeStreamThunk, pipeline, options); + return changeStream; +}; + +/** + * Returns a promise that resolves when this connection + * successfully connects to MongoDB, or rejects if this connection failed + * to connect. + * + * #### Example: + * + * const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/test'). + * asPromise(); + * conn.readyState; // 1, means Mongoose is connected + * + * @api public + * @return {Promise} + */ + +Connection.prototype.asPromise = async function asPromise() { + try { + await this.$initialConnection; + return this; + } catch (err) { + throw _handleConnectionErrors(err); + } +}; + +/** + * Returns an array of model names created on this connection. + * @api public + * @return {String[]} + */ + +Connection.prototype.modelNames = function() { + return Object.keys(this.models); +}; + +/** + * Returns if the connection requires authentication after it is opened. Generally if a + * username and password are both provided than authentication is needed, but in some cases a + * password is not required. + * + * @api private + * @return {Boolean} true if the connection should be authenticated after it is opened, otherwise false. + */ +Connection.prototype.shouldAuthenticate = function() { + return this.user != null && + (this.pass != null || this.authMechanismDoesNotRequirePassword()); +}; + +/** + * Returns a boolean value that specifies if the current authentication mechanism needs a + * password to authenticate according to the auth objects passed into the openUri methods. + * + * @api private + * @return {Boolean} true if the authentication mechanism specified in the options object requires + * a password, otherwise false. + */ +Connection.prototype.authMechanismDoesNotRequirePassword = function() { + if (this.options && this.options.auth) { + return noPasswordAuthMechanisms.indexOf(this.options.auth.authMechanism) >= 0; + } + return true; +}; + +/** + * Returns a boolean value that specifies if the provided objects object provides enough + * data to authenticate with. Generally this is true if the username and password are both specified + * but in some authentication methods, a password is not required for authentication so only a username + * is required. + * + * @param {Object} [options] the options object passed into the openUri methods. + * @api private + * @return {Boolean} true if the provided options object provides enough data to authenticate with, + * otherwise false. + */ +Connection.prototype.optionsProvideAuthenticationData = function(options) { + return (options) && + (options.user) && + ((options.pass) || this.authMechanismDoesNotRequirePassword()); +}; + +/** + * Returns the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance + * that this connection uses to talk to MongoDB. + * + * #### Example: + * + * const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/test'). + * asPromise(); + * + * conn.getClient(); // MongoClient { ... } + * + * @api public + * @return {MongoClient} + */ + +Connection.prototype.getClient = function getClient() { + return this.client; +}; + +/** + * Set the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance + * that this connection uses to talk to MongoDB. This is useful if you already have a MongoClient instance, and want to + * reuse it. + * + * #### Example: + * + * const client = await mongodb.MongoClient.connect('mongodb://127.0.0.1:27017/test'); + * + * const conn = mongoose.createConnection().setClient(client); + * + * conn.getClient(); // MongoClient { ... } + * conn.readyState; // 1, means 'CONNECTED' + * + * @api public + * @param {MongClient} client The Client to set to be used. + * @return {Connection} this + */ + +Connection.prototype.setClient = function setClient() { + throw new MongooseError('Connection#setClient not implemented by driver'); +}; + +/*! + * Called internally by `openUri()` to create a MongoClient instance. + */ + +Connection.prototype.createClient = function createClient() { + throw new MongooseError('Connection#createClient not implemented by driver'); +}; + +/** + * Syncs all the indexes for the models registered with this connection. + * + * @param {Object} [options] + * @param {Boolean} [options.continueOnError] `false` by default. If set to `true`, mongoose will not throw an error if one model syncing failed, and will return an object where the keys are the names of the models, and the values are the results/errors for each model. + * @return {Promise} Returns a Promise, when the Promise resolves the value is a list of the dropped indexes. + */ +Connection.prototype.syncIndexes = async function syncIndexes(options = {}) { + const result = {}; + const errorsMap = { }; + + const { continueOnError } = options; + delete options.continueOnError; + + for (const model of Object.values(this.models)) { + try { + result[model.modelName] = await model.syncIndexes(options); + } catch (err) { + if (!continueOnError) { + errorsMap[model.modelName] = err; + break; + } else { + result[model.modelName] = err; + } + } + } + + if (!continueOnError && Object.keys(errorsMap).length) { + const message = Object.entries(errorsMap).map(([modelName, err]) => `${modelName}: ${err.message}`).join(', '); + const syncIndexesError = new SyncIndexesError(message, errorsMap); + throw syncIndexesError; + } + + return result; +}; + +/** + * Switches to a different database using the same [connection pool](https://mongoosejs.com/docs/api/connectionshtml#connection_pools). + * + * Returns a new connection object, with the new db. + * + * #### Example: + * + * // Connect to `initialdb` first + * const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/initialdb').asPromise(); + * + * // Creates an un-cached connection to `mydb` + * const db = conn.useDb('mydb'); + * // Creates a cached connection to `mydb2`. All calls to `conn.useDb('mydb2', { useCache: true })` will return the same + * // connection instance as opposed to creating a new connection instance + * const db2 = conn.useDb('mydb2', { useCache: true }); + * + * @method useDb + * @memberOf Connection + * @param {String} name The database name + * @param {Object} [options] + * @param {Boolean} [options.useCache=false] If true, cache results so calling `useDb()` multiple times with the same name only creates 1 connection object. + * @param {Boolean} [options.noListener=false] If true, the connection object will not make the db listen to events on the original connection. See [issue #9961](https://github.com/Automattic/mongoose/issues/9961). + * @return {Connection} New Connection Object + * @api public + */ + +/** + * Removes the database connection with the given name created with with `useDb()`. + * + * Throws an error if the database connection was not found. + * + * #### Example: + * + * // Connect to `initialdb` first + * const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/initialdb').asPromise(); + * + * // Creates an un-cached connection to `mydb` + * const db = conn.useDb('mydb'); + * + * // Closes `db`, and removes `db` from `conn.relatedDbs` and `conn.otherDbs` + * await conn.removeDb('mydb'); + * + * @method removeDb + * @memberOf Connection + * @param {String} name The database name + * @return {Connection} this + * @api public + */ + +/*! + * Module exports. + */ + +Connection.STATES = STATES; +module.exports = Connection; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/connectionState.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/connectionState.js new file mode 100644 index 000000000..920f45bee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/connectionState.js @@ -0,0 +1,26 @@ + +/*! + * Connection states + */ + +'use strict'; + +const STATES = module.exports = exports = Object.create(null); + +const disconnected = 'disconnected'; +const connected = 'connected'; +const connecting = 'connecting'; +const disconnecting = 'disconnecting'; +const uninitialized = 'uninitialized'; + +STATES[0] = disconnected; +STATES[1] = connected; +STATES[2] = connecting; +STATES[3] = disconnecting; +STATES[99] = uninitialized; + +STATES[disconnected] = 0; +STATES[connected] = 1; +STATES[connecting] = 2; +STATES[disconnecting] = 3; +STATES[uninitialized] = 99; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/constants.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/constants.js new file mode 100644 index 000000000..83a66832b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/constants.js @@ -0,0 +1,36 @@ +'use strict'; + +/*! + * ignore + */ + +const queryOperations = Object.freeze([ + // Read + 'countDocuments', + 'distinct', + 'estimatedDocumentCount', + 'find', + 'findOne', + // Update + 'findOneAndReplace', + 'findOneAndUpdate', + 'replaceOne', + 'updateMany', + 'updateOne', + // Delete + 'deleteMany', + 'deleteOne', + 'findOneAndDelete' +]); + +exports.queryOperations = queryOperations; + +/*! + * ignore + */ + +const queryMiddlewareFunctions = queryOperations.concat([ + 'validate' +]); + +exports.queryMiddlewareFunctions = queryMiddlewareFunctions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/aggregationCursor.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/aggregationCursor.js new file mode 100644 index 000000000..5462a6e60 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/aggregationCursor.js @@ -0,0 +1,397 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('../error/mongooseError'); +const Readable = require('stream').Readable; +const eachAsync = require('../helpers/cursor/eachAsync'); +const immediate = require('../helpers/immediate'); +const util = require('util'); + +/** + * An AggregationCursor is a concurrency primitive for processing aggregation + * results one document at a time. It is analogous to QueryCursor. + * + * An AggregationCursor fulfills the Node.js streams3 API, + * in addition to several other mechanisms for loading documents from MongoDB + * one at a time. + * + * Creating an AggregationCursor executes the model's pre aggregate hooks, + * but **not** the model's post aggregate hooks. + * + * Unless you're an advanced user, do **not** instantiate this class directly. + * Use [`Aggregate#cursor()`](https://mongoosejs.com/docs/api/aggregate.html#Aggregate.prototype.cursor()) instead. + * + * @param {Aggregate} agg + * @inherits Readable https://nodejs.org/api/stream.html#class-streamreadable + * @event `cursor`: Emitted when the cursor is created + * @event `error`: Emitted when an error occurred + * @event `data`: Emitted when the stream is flowing and the next doc is ready + * @event `end`: Emitted when the stream is exhausted + * @api public + */ + +function AggregationCursor(agg) { + // set autoDestroy=true because on node 12 it's by default false + // gh-10902 need autoDestroy to destroy correctly and emit 'close' event + Readable.call(this, { autoDestroy: true, objectMode: true }); + + this.cursor = null; + this.agg = agg; + this._transforms = []; + const model = agg._model; + delete agg.options.cursor.useMongooseAggCursor; + this._mongooseOptions = {}; + + _init(model, this, agg); +} + +util.inherits(AggregationCursor, Readable); + +/*! + * ignore + */ + +function _init(model, c, agg) { + if (!model.collection.buffer) { + model.hooks.execPre('aggregate', agg, function() { + if (typeof agg.options?.cursor?.transform === 'function') { + c._transforms.push(agg.options.cursor.transform); + } + + c.cursor = model.collection.aggregate(agg._pipeline, agg.options || {}); + c.emit('cursor', c.cursor); + }); + } else { + model.collection.emitter.once('queue', function() { + model.hooks.execPre('aggregate', agg, function() { + if (typeof agg.options?.cursor?.transform === 'function') { + c._transforms.push(agg.options.cursor.transform); + } + + c.cursor = model.collection.aggregate(agg._pipeline, agg.options || {}); + c.emit('cursor', c.cursor); + }); + }); + } +} + +/** + * Necessary to satisfy the Readable API + * @method _read + * @memberOf AggregationCursor + * @instance + * @api private + */ + +AggregationCursor.prototype._read = function() { + const _this = this; + _next(this, function(error, doc) { + if (error) { + return _this.emit('error', error); + } + if (!doc) { + _this.push(null); + _this.cursor.close(function(error) { + if (error) { + return _this.emit('error', error); + } + }); + return; + } + _this.push(doc); + }); +}; + +if (Symbol.asyncIterator != null) { + const msg = 'Mongoose does not support using async iterators with an ' + + 'existing aggregation cursor. See https://bit.ly/mongoose-async-iterate-aggregation'; + + AggregationCursor.prototype[Symbol.asyncIterator] = function() { + throw new MongooseError(msg); + }; +} + +/** + * Registers a transform function which subsequently maps documents retrieved + * via the streams interface or `.next()` + * + * #### Example: + * + * // Map documents returned by `data` events + * Thing. + * find({ name: /^hello/ }). + * cursor(). + * map(function (doc) { + * doc.foo = "bar"; + * return doc; + * }) + * on('data', function(doc) { console.log(doc.foo); }); + * + * // Or map documents returned by `.next()` + * const cursor = Thing.find({ name: /^hello/ }). + * cursor(). + * map(function (doc) { + * doc.foo = "bar"; + * return doc; + * }); + * cursor.next(function(error, doc) { + * console.log(doc.foo); + * }); + * + * @param {Function} fn + * @return {AggregationCursor} + * @memberOf AggregationCursor + * @api public + * @method map + */ + +Object.defineProperty(AggregationCursor.prototype, 'map', { + value: function(fn) { + this._transforms.push(fn); + return this; + }, + enumerable: true, + configurable: true, + writable: true +}); + +/** + * Marks this cursor as errored + * @method _markError + * @instance + * @memberOf AggregationCursor + * @api private + */ + +AggregationCursor.prototype._markError = function(error) { + this._error = error; + return this; +}; + +/** + * Marks this cursor as closed. Will stop streaming and subsequent calls to + * `next()` will error. + * + * @param {Function} callback + * @return {Promise} + * @api public + * @method close + * @emits close + * @see AggregationCursor.close https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html#close + */ + +AggregationCursor.prototype.close = async function close() { + if (typeof arguments[0] === 'function') { + throw new MongooseError('AggregationCursor.prototype.close() no longer accepts a callback'); + } + try { + await this.cursor.close(); + } catch (error) { + this.listeners('error').length > 0 && this.emit('error', error); + throw error; + } + this.emit('close'); +}; + +/** + * Get the next document from this cursor. Will return `null` when there are + * no documents left. + * + * @return {Promise} + * @api public + * @method next + */ + +AggregationCursor.prototype.next = async function next() { + if (typeof arguments[0] === 'function') { + throw new MongooseError('AggregationCursor.prototype.next() no longer accepts a callback'); + } + return new Promise((resolve, reject) => { + _next(this, (err, res) => { + if (err != null) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * Execute `fn` for every document in the cursor. If `fn` returns a promise, + * will wait for the promise to resolve before iterating on to the next one. + * Returns a promise that resolves when done. + * + * @param {Function} fn + * @param {Object} [options] + * @param {Number} [options.parallel] the number of promises to execute in parallel. Defaults to 1. + * @param {Number} [options.batchSize=null] if set, Mongoose will call `fn` with an array of at most `batchSize` documents, instead of a single document + * @param {Boolean} [options.continueOnError=false] if true, `eachAsync()` iterates through all docs even if `fn` throws an error. If false, `eachAsync()` throws an error immediately if the given function `fn()` throws an error. + * @return {Promise} + * @api public + * @method eachAsync + */ + +AggregationCursor.prototype.eachAsync = function(fn, opts) { + if (typeof arguments[2] === 'function') { + throw new MongooseError('AggregationCursor.prototype.eachAsync() no longer accepts a callback'); + } + const _this = this; + if (typeof opts === 'function') { + opts = {}; + } + opts = opts || {}; + + return eachAsync(function(cb) { return _next(_this, cb); }, fn, opts); +}; + +/** + * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js) + * You do not need to call this function explicitly, the JavaScript runtime + * will call it for you. + * + * #### Example: + * + * // Async iterator without explicitly calling `cursor()`. Mongoose still + * // creates an AggregationCursor instance internally. + * const agg = Model.aggregate([{ $match: { age: { $gte: 25 } } }]); + * for await (const doc of agg) { + * console.log(doc.name); + * } + * + * // You can also use an AggregationCursor instance for async iteration + * const cursor = Model.aggregate([{ $match: { age: { $gte: 25 } } }]).cursor(); + * for await (const doc of cursor) { + * console.log(doc.name); + * } + * + * Node.js 10.x supports async iterators natively without any flags. You can + * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187). + * + * **Note:** This function is not set if `Symbol.asyncIterator` is undefined. If + * `Symbol.asyncIterator` is undefined, that means your Node.js version does not + * support async iterators. + * + * @method [Symbol.asyncIterator] + * @memberOf AggregationCursor + * @instance + * @api public + */ + +if (Symbol.asyncIterator != null) { + AggregationCursor.prototype[Symbol.asyncIterator] = function() { + return this.transformNull()._transformForAsyncIterator(); + }; +} + +/*! + * ignore + */ + +AggregationCursor.prototype._transformForAsyncIterator = function() { + if (this._transforms.indexOf(_transformForAsyncIterator) === -1) { + this.map(_transformForAsyncIterator); + } + return this; +}; + +/*! + * ignore + */ + +AggregationCursor.prototype.transformNull = function(val) { + if (arguments.length === 0) { + val = true; + } + this._mongooseOptions.transformNull = val; + return this; +}; + +/*! + * ignore + */ + +function _transformForAsyncIterator(doc) { + return doc == null ? { done: true } : { value: doc, done: false }; +} + +/** + * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html#addCursorFlag). + * Useful for setting the `noCursorTimeout` and `tailable` flags. + * + * @param {String} flag + * @param {Boolean} value + * @return {AggregationCursor} this + * @api public + * @method addCursorFlag + */ + +AggregationCursor.prototype.addCursorFlag = function(flag, value) { + const _this = this; + _waitForCursor(this, function() { + _this.cursor.addCursorFlag(flag, value); + }); + return this; +}; + +/*! + * ignore + */ + +function _waitForCursor(ctx, cb) { + if (ctx.cursor) { + return cb(); + } + ctx.once('cursor', function() { + cb(); + }); +} + +/** + * Get the next doc from the underlying cursor and mongooseify it + * (populate, etc.) + * @param {Any} ctx + * @param {Function} cb + * @api private + */ + +function _next(ctx, cb) { + let callback = cb; + if (ctx._transforms.length) { + callback = function(err, doc) { + if (err || (doc === null && !ctx._mongooseOptions.transformNull)) { + return cb(err, doc); + } + cb(err, ctx._transforms.reduce(function(doc, fn) { + return fn(doc); + }, doc)); + }; + } + + if (ctx._error) { + return immediate(function() { + callback(ctx._error); + }); + } + + if (ctx.cursor) { + return ctx.cursor.next().then( + doc => { + if (!doc) { + return callback(null, null); + } + + callback(null, doc); + }, + err => callback(err) + ); + } else { + ctx.once('cursor', function() { + _next(ctx, cb); + }); + } +} + +module.exports = AggregationCursor; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/changeStream.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/changeStream.js new file mode 100644 index 000000000..64fcbf22a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/changeStream.js @@ -0,0 +1,153 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const EventEmitter = require('events').EventEmitter; + +/*! + * ignore + */ + +const driverChangeStreamEvents = ['close', 'change', 'end', 'error', 'resumeTokenChanged']; + +/*! + * ignore + */ + +class ChangeStream extends EventEmitter { + constructor(changeStreamThunk, pipeline, options) { + super(); + + this.driverChangeStream = null; + this.closed = false; + this.bindedEvents = false; + this.pipeline = pipeline; + this.options = options; + + if (options && options.hydrate && !options.model) { + throw new Error( + 'Cannot create change stream with `hydrate: true` ' + + 'unless calling `Model.watch()`' + ); + } + + // This wrapper is necessary because of buffering. + changeStreamThunk((err, driverChangeStream) => { + if (err != null) { + this.emit('error', err); + return; + } + + this.driverChangeStream = driverChangeStream; + this.emit('ready'); + }); + } + + _bindEvents() { + if (this.bindedEvents) { + return; + } + + this.bindedEvents = true; + + if (this.driverChangeStream == null) { + this.once('ready', () => { + this.driverChangeStream.on('close', () => { + this.closed = true; + }); + + driverChangeStreamEvents.forEach(ev => { + this.driverChangeStream.on(ev, data => { + if (data != null && data.fullDocument != null && this.options && this.options.hydrate) { + data.fullDocument = this.options.model.hydrate(data.fullDocument); + } + this.emit(ev, data); + }); + }); + }); + + return; + } + + this.driverChangeStream.on('close', () => { + this.closed = true; + }); + + driverChangeStreamEvents.forEach(ev => { + this.driverChangeStream.on(ev, data => { + if (data != null && data.fullDocument != null && this.options && this.options.hydrate) { + data.fullDocument = this.options.model.hydrate(data.fullDocument); + } + this.emit(ev, data); + }); + }); + } + + hasNext(cb) { + return this.driverChangeStream.hasNext(cb); + } + + next(cb) { + if (this.options && this.options.hydrate) { + if (cb != null) { + const originalCb = cb; + cb = (err, data) => { + if (err != null) { + return originalCb(err); + } + if (data.fullDocument != null) { + data.fullDocument = this.options.model.hydrate(data.fullDocument); + } + return originalCb(null, data); + }; + } + + let maybePromise = this.driverChangeStream.next(cb); + if (maybePromise && typeof maybePromise.then === 'function') { + maybePromise = maybePromise.then(data => { + if (data.fullDocument != null) { + data.fullDocument = this.options.model.hydrate(data.fullDocument); + } + return data; + }); + } + return maybePromise; + } + + return this.driverChangeStream.next(cb); + } + + addListener(event, handler) { + this._bindEvents(); + return super.addListener(event, handler); + } + + on(event, handler) { + this._bindEvents(); + return super.on(event, handler); + } + + once(event, handler) { + this._bindEvents(); + return super.once(event, handler); + } + + _queue(cb) { + this.once('ready', () => cb()); + } + + close() { + this.closed = true; + if (this.driverChangeStream) { + this.driverChangeStream.close(); + } + } +} + +/*! + * ignore + */ + +module.exports = ChangeStream; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/queryCursor.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/queryCursor.js new file mode 100644 index 000000000..ff59f6aeb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/cursor/queryCursor.js @@ -0,0 +1,580 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('../error/mongooseError'); +const Readable = require('stream').Readable; +const eachAsync = require('../helpers/cursor/eachAsync'); +const helpers = require('../queryHelpers'); +const kareem = require('kareem'); +const immediate = require('../helpers/immediate'); +const util = require('util'); + +/** + * A QueryCursor is a concurrency primitive for processing query results + * one document at a time. A QueryCursor fulfills the Node.js streams3 API, + * in addition to several other mechanisms for loading documents from MongoDB + * one at a time. + * + * QueryCursors execute the model's pre `find` hooks before loading any documents + * from MongoDB, and the model's post `find` hooks after loading each document. + * + * Unless you're an advanced user, do **not** instantiate this class directly. + * Use [`Query#cursor()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.cursor()) instead. + * + * @param {Query} query + * @param {Object} options query options passed to `.find()` + * @inherits Readable https://nodejs.org/api/stream.html#class-streamreadable + * @event `cursor`: Emitted when the cursor is created + * @event `error`: Emitted when an error occurred + * @event `data`: Emitted when the stream is flowing and the next doc is ready + * @event `end`: Emitted when the stream is exhausted + * @api public + */ + +function QueryCursor(query) { + // set autoDestroy=true because on node 12 it's by default false + // gh-10902 need autoDestroy to destroy correctly and emit 'close' event + Readable.call(this, { autoDestroy: true, objectMode: true }); + + this.cursor = null; + this.skipped = false; + this.query = query; + const model = query.model; + this._mongooseOptions = {}; + this._transforms = []; + this.model = model; + this.options = {}; + model.hooks.execPre('find', query, (err) => { + if (err != null) { + if (err instanceof kareem.skipWrappedFunction) { + const resultValue = err.args[0]; + if (resultValue != null && (!Array.isArray(resultValue) || resultValue.length)) { + const err = new MongooseError( + 'Cannot `skipMiddlewareFunction()` with a value when using ' + + '`.find().cursor()`, value must be nullish or empty array, got "' + + util.inspect(resultValue) + + '".' + ); + this._markError(err); + this.listeners('error').length > 0 && this.emit('error', err); + return; + } + this.skipped = true; + this.emit('cursor', null); + return; + } + this._markError(err); + this.listeners('error').length > 0 && this.emit('error', err); + return; + } + Object.assign(this.options, query._optionsForExec()); + this._transforms = this._transforms.concat(query._transforms.slice()); + if (this.options.transform) { + this._transforms.push(this.options.transform); + } + // Re: gh-8039, you need to set the `cursor.batchSize` option, top-level + // `batchSize` option doesn't work. + if (this.options.batchSize) { + // Max out the number of documents we'll populate in parallel at 5000. + this.options._populateBatchSize = Math.min(this.options.batchSize, 5000); + } + + if (model.collection._shouldBufferCommands() && model.collection.buffer) { + model.collection.queue.push([ + () => _getRawCursor(query, this) + ]); + } else { + _getRawCursor(query, this); + } + }); +} + +util.inherits(QueryCursor, Readable); + +/*! + * ignore + */ + +function _getRawCursor(query, queryCursor) { + try { + const cursor = query.model.collection.find(query._conditions, queryCursor.options); + queryCursor.cursor = cursor; + queryCursor.emit('cursor', cursor); + } catch (err) { + queryCursor._markError(err); + queryCursor.listeners('error').length > 0 && queryCursor.emit('error', queryCursor._error); + } +} + +/** + * Necessary to satisfy the Readable API + * @method _read + * @memberOf QueryCursor + * @instance + * @api private + */ + +QueryCursor.prototype._read = function() { + _next(this, (error, doc) => { + if (error) { + return this.emit('error', error); + } + if (!doc) { + this.push(null); + this.cursor.close(function(error) { + if (error) { + return this.emit('error', error); + } + }); + return; + } + this.push(doc); + }); +}; + +/** + * Registers a transform function which subsequently maps documents retrieved + * via the streams interface or `.next()` + * + * #### Example: + * + * // Map documents returned by `data` events + * Thing. + * find({ name: /^hello/ }). + * cursor(). + * map(function (doc) { + * doc.foo = "bar"; + * return doc; + * }) + * on('data', function(doc) { console.log(doc.foo); }); + * + * // Or map documents returned by `.next()` + * const cursor = Thing.find({ name: /^hello/ }). + * cursor(). + * map(function (doc) { + * doc.foo = "bar"; + * return doc; + * }); + * cursor.next(function(error, doc) { + * console.log(doc.foo); + * }); + * + * @param {Function} fn + * @return {QueryCursor} + * @memberOf QueryCursor + * @api public + * @method map + */ + +Object.defineProperty(QueryCursor.prototype, 'map', { + value: function(fn) { + this._transforms.push(fn); + return this; + }, + enumerable: true, + configurable: true, + writable: true +}); + +/** + * Marks this cursor as errored + * @method _markError + * @memberOf QueryCursor + * @instance + * @api private + */ + +QueryCursor.prototype._markError = function(error) { + this._error = error; + return this; +}; + +/** + * Marks this cursor as closed. Will stop streaming and subsequent calls to + * `next()` will error. + * + * @return {Promise} + * @api public + * @method close + * @emits close + * @see AggregationCursor.close https://mongodb.github.io/node-mongodb-native/4.9/classes/AggregationCursor.html#close + */ + +QueryCursor.prototype.close = async function close() { + if (typeof arguments[0] === 'function') { + throw new MongooseError('QueryCursor.prototype.close() no longer accepts a callback'); + } + try { + await this.cursor.close(); + this.emit('close'); + } catch (error) { + this.listeners('error').length > 0 && this.emit('error', error); + throw error; + } +}; + +/** + * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will + * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even + * if the resultant data has already been retrieved by this cursor. + * + * @return {AggregationCursor} this + * @api public + * @method rewind + */ + +QueryCursor.prototype.rewind = function() { + _waitForCursor(this, () => { + this.cursor.rewind(); + }); + return this; +}; + +/** + * Get the next document from this cursor. Will return `null` when there are + * no documents left. + * + * @return {Promise} + * @api public + * @method next + */ + +QueryCursor.prototype.next = async function next() { + if (typeof arguments[0] === 'function') { + throw new MongooseError('QueryCursor.prototype.next() no longer accepts a callback'); + } + return new Promise((resolve, reject) => { + _next(this, function(error, doc) { + if (error) { + return reject(error); + } + resolve(doc); + }); + }); +}; + +/** + * Execute `fn` for every document in the cursor. If `fn` returns a promise, + * will wait for the promise to resolve before iterating on to the next one. + * Returns a promise that resolves when done. + * + * #### Example: + * + * // Iterate over documents asynchronously + * Thing. + * find({ name: /^hello/ }). + * cursor(). + * eachAsync(async function (doc, i) { + * doc.foo = doc.bar + i; + * await doc.save(); + * }) + * + * @param {Function} fn + * @param {Object} [options] + * @param {Number} [options.parallel] the number of promises to execute in parallel. Defaults to 1. + * @param {Number} [options.batchSize] if set, will call `fn()` with arrays of documents with length at most `batchSize` + * @param {Boolean} [options.continueOnError=false] if true, `eachAsync()` iterates through all docs even if `fn` throws an error. If false, `eachAsync()` throws an error immediately if the given function `fn()` throws an error. + * @return {Promise} + * @api public + * @method eachAsync + */ + +QueryCursor.prototype.eachAsync = function(fn, opts) { + if (typeof arguments[2] === 'function') { + throw new MongooseError('QueryCursor.prototype.eachAsync() no longer accepts a callback'); + } + if (typeof opts === 'function') { + opts = {}; + } + opts = opts || {}; + + return eachAsync((cb) => _next(this, cb), fn, opts); +}; + +/** + * The `options` passed in to the `QueryCursor` constructor. + * + * @api public + * @property options + */ + +QueryCursor.prototype.options; + +/** + * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html#addCursorFlag). + * Useful for setting the `noCursorTimeout` and `tailable` flags. + * + * @param {String} flag + * @param {Boolean} value + * @return {AggregationCursor} this + * @api public + * @method addCursorFlag + */ + +QueryCursor.prototype.addCursorFlag = function(flag, value) { + _waitForCursor(this, () => { + this.cursor.addCursorFlag(flag, value); + }); + return this; +}; + +/*! + * ignore + */ + +QueryCursor.prototype.transformNull = function(val) { + if (arguments.length === 0) { + val = true; + } + this._mongooseOptions.transformNull = val; + return this; +}; + +/*! + * ignore + */ + +QueryCursor.prototype._transformForAsyncIterator = function() { + if (this._transforms.indexOf(_transformForAsyncIterator) === -1) { + this.map(_transformForAsyncIterator); + } + return this; +}; + +/** + * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js). + * You do not need to call this function explicitly, the JavaScript runtime + * will call it for you. + * + * #### Example: + * + * // Works without using `cursor()` + * for await (const doc of Model.find([{ $sort: { name: 1 } }])) { + * console.log(doc.name); + * } + * + * // Can also use `cursor()` + * for await (const doc of Model.find([{ $sort: { name: 1 } }]).cursor()) { + * console.log(doc.name); + * } + * + * Node.js 10.x supports async iterators natively without any flags. You can + * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187). + * + * **Note:** This function is not if `Symbol.asyncIterator` is undefined. If + * `Symbol.asyncIterator` is undefined, that means your Node.js version does not + * support async iterators. + * + * @method [Symbol.asyncIterator] + * @memberOf QueryCursor + * @instance + * @api public + */ + +if (Symbol.asyncIterator != null) { + QueryCursor.prototype[Symbol.asyncIterator] = function() { + return this.transformNull()._transformForAsyncIterator(); + }; +} + +/*! + * ignore + */ + +function _transformForAsyncIterator(doc) { + return doc == null ? { done: true } : { value: doc, done: false }; +} + +/** + * Get the next doc from the underlying cursor and mongooseify it + * (populate, etc.) + * @param {Any} ctx + * @param {Function} cb + * @api private + */ + +function _next(ctx, cb) { + let callback = cb; + if (ctx._transforms.length) { + callback = function(err, doc) { + if (err || (doc === null && !ctx._mongooseOptions.transformNull)) { + return cb(err, doc); + } + cb(err, ctx._transforms.reduce(function(doc, fn) { + return fn.call(ctx, doc); + }, doc)); + }; + } + + if (ctx._error) { + return immediate(function() { + callback(ctx._error); + }); + } + if (ctx.skipped) { + return immediate(() => callback(null, null)); + } + + if (ctx.cursor) { + if (ctx.query._mongooseOptions.populate && !ctx._pop) { + ctx._pop = helpers.preparePopulationOptionsMQ(ctx.query, + ctx.query._mongooseOptions); + ctx._pop.__noPromise = true; + } + if (ctx.query._mongooseOptions.populate && ctx.options._populateBatchSize > 1) { + if (ctx._batchDocs && ctx._batchDocs.length) { + // Return a cached populated doc + return _nextDoc(ctx, ctx._batchDocs.shift(), ctx._pop, callback); + } else if (ctx._batchExhausted) { + // Internal cursor reported no more docs. Act the same here + return callback(null, null); + } else { + // Request as many docs as batchSize, to populate them also in batch + ctx._batchDocs = []; + ctx.cursor.next().then( + res => { _onNext.call({ ctx, callback }, null, res); }, + err => { _onNext.call({ ctx, callback }, err); } + ); + return; + } + } else { + return ctx.cursor.next().then( + doc => { + if (!doc) { + callback(null, null); + return; + } + + if (!ctx.query._mongooseOptions.populate) { + return _nextDoc(ctx, doc, null, callback); + } + + ctx.query.model.populate(doc, ctx._pop).then( + doc => { + _nextDoc(ctx, doc, ctx._pop, callback); + }, + err => { + callback(err); + } + ); + }, + error => { + callback(error); + } + ); + } + } else { + ctx.once('error', cb); + + ctx.once('cursor', function(cursor) { + ctx.removeListener('error', cb); + if (cursor == null) { + if (ctx.skipped) { + return cb(null, null); + } + return; + } + _next(ctx, cb); + }); + } +} + +/*! + * ignore + */ + +function _onNext(error, doc) { + if (error) { + return this.callback(error); + } + if (!doc) { + this.ctx._batchExhausted = true; + return _populateBatch.call(this); + } + + this.ctx._batchDocs.push(doc); + + if (this.ctx._batchDocs.length < this.ctx.options._populateBatchSize) { + // If both `batchSize` and `_populateBatchSize` are huge, calling `next()` repeatedly may + // cause a stack overflow. So make sure we clear the stack regularly. + if (this.ctx._batchDocs.length > 0 && this.ctx._batchDocs.length % 1000 === 0) { + return immediate(() => this.ctx.cursor.next().then( + res => { _onNext.call(this, null, res); }, + err => { _onNext.call(this, err); } + )); + } + this.ctx.cursor.next().then( + res => { _onNext.call(this, null, res); }, + err => { _onNext.call(this, err); } + ); + } else { + _populateBatch.call(this); + } +} + +/*! + * ignore + */ + +function _populateBatch() { + if (!this.ctx._batchDocs.length) { + return this.callback(null, null); + } + this.ctx.query.model.populate(this.ctx._batchDocs, this.ctx._pop).then( + () => { + _nextDoc(this.ctx, this.ctx._batchDocs.shift(), this.ctx._pop, this.callback); + }, + err => { + this.callback(err); + } + ); +} + +/*! + * ignore + */ + +function _nextDoc(ctx, doc, pop, callback) { + if (ctx.query._mongooseOptions.lean) { + return ctx.model.hooks.execPost('find', ctx.query, [[doc]], err => { + if (err != null) { + return callback(err); + } + callback(null, doc); + }); + } + + const { model, _fields, _userProvidedFields, options } = ctx.query; + helpers.createModelAndInit(model, doc, _fields, _userProvidedFields, options, pop, (err, doc) => { + if (err != null) { + return callback(err); + } + ctx.model.hooks.execPost('find', ctx.query, [[doc]], err => { + if (err != null) { + return callback(err); + } + callback(null, doc); + }); + }); +} + +/*! + * ignore + */ + +function _waitForCursor(ctx, cb) { + if (ctx.cursor) { + return cb(); + } + ctx.once('cursor', function(cursor) { + if (cursor == null) { + return; + } + cb(); + }); +} + +module.exports = QueryCursor; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/document.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/document.js new file mode 100644 index 000000000..ffaa066ef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/document.js @@ -0,0 +1,4852 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const EventEmitter = require('events').EventEmitter; +const InternalCache = require('./internal'); +const MongooseError = require('./error/index'); +const MixedSchema = require('./schema/mixed'); +const ObjectExpectedError = require('./error/objectExpected'); +const ObjectParameterError = require('./error/objectParameter'); +const ParallelValidateError = require('./error/parallelValidate'); +const Schema = require('./schema'); +const StrictModeError = require('./error/strict'); +const ValidationError = require('./error/validation'); +const ValidatorError = require('./error/validator'); +const $__hasIncludedChildren = require('./helpers/projection/hasIncludedChildren'); +const applyDefaults = require('./helpers/document/applyDefaults'); +const cleanModifiedSubpaths = require('./helpers/document/cleanModifiedSubpaths'); +const clone = require('./helpers/clone'); +const compile = require('./helpers/document/compile').compile; +const defineKey = require('./helpers/document/compile').defineKey; +const flatten = require('./helpers/common').flatten; +const get = require('./helpers/get'); +const getEmbeddedDiscriminatorPath = require('./helpers/document/getEmbeddedDiscriminatorPath'); +const getKeysInSchemaOrder = require('./helpers/schema/getKeysInSchemaOrder'); +const getSubdocumentStrictValue = require('./helpers/schema/getSubdocumentStrictValue'); +const handleSpreadDoc = require('./helpers/document/handleSpreadDoc'); +const immediate = require('./helpers/immediate'); +const isDefiningProjection = require('./helpers/projection/isDefiningProjection'); +const isExclusive = require('./helpers/projection/isExclusive'); +const inspect = require('util').inspect; +const internalToObjectOptions = require('./options').internalToObjectOptions; +const markArraySubdocsPopulated = require('./helpers/populate/markArraySubdocsPopulated'); +const minimize = require('./helpers/minimize'); +const mpath = require('mpath'); +const queryhelpers = require('./queryHelpers'); +const utils = require('./utils'); +const isPromise = require('./helpers/isPromise'); + +const deepEqual = utils.deepEqual; +const isMongooseObject = utils.isMongooseObject; + +const arrayAtomicsBackupSymbol = require('./helpers/symbols').arrayAtomicsBackupSymbol; +const arrayAtomicsSymbol = require('./helpers/symbols').arrayAtomicsSymbol; +const documentArrayParent = require('./helpers/symbols').documentArrayParent; +const documentIsModified = require('./helpers/symbols').documentIsModified; +const documentModifiedPaths = require('./helpers/symbols').documentModifiedPaths; +const documentSchemaSymbol = require('./helpers/symbols').documentSchemaSymbol; +const getSymbol = require('./helpers/symbols').getSymbol; +const populateModelSymbol = require('./helpers/symbols').populateModelSymbol; +const scopeSymbol = require('./helpers/symbols').scopeSymbol; +const schemaMixedSymbol = require('./schema/symbols').schemaMixedSymbol; +const parentPaths = require('./helpers/path/parentPaths'); +const getDeepestSubdocumentForPath = require('./helpers/document/getDeepestSubdocumentForPath'); +const sessionNewDocuments = require('./helpers/symbols').sessionNewDocuments; + +let DocumentArray; +let MongooseArray; +let Embedded; + +const specialProperties = utils.specialProperties; + +/** + * The core Mongoose document constructor. You should not call this directly, + * the Mongoose [Model constructor](./api/model.html#Model) calls this for you. + * + * @param {Object} obj the values to set + * @param {Object} [fields] optional object containing the fields which were selected in the query returning this document and any populated paths data + * @param {Object} [options] various configuration options for the document + * @param {Boolean} [options.defaults=true] if `false`, skip applying default values to this document. + * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter + * @event `init`: Emitted on a document after it has been retrieved from the db and fully hydrated by Mongoose. + * @event `save`: Emitted when the document is successfully saved + * @api private + */ + +function Document(obj, fields, skipId, options) { + if (typeof skipId === 'object' && skipId != null) { + options = skipId; + skipId = options.skipId; + } + options = Object.assign({}, options); + + // Support `browserDocument.js` syntax + if (this.$__schema == null) { + const _schema = utils.isObject(fields) && !fields.instanceOfSchema ? + new Schema(fields) : + fields; + this.$__setSchema(_schema); + fields = skipId; + skipId = options; + options = arguments[4] || {}; + } + + this.$__ = new InternalCache(); + + // Avoid setting `isNew` to `true`, because it is `true` by default + if (options.isNew != null && options.isNew !== true) { + this.$isNew = options.isNew; + } + + if (options.priorDoc != null) { + this.$__.priorDoc = options.priorDoc; + } + + if (skipId) { + this.$__.skipId = skipId; + } + + if (obj != null && typeof obj !== 'object') { + throw new ObjectParameterError(obj, 'obj', 'Document'); + } + + let defaults = true; + if (options.defaults !== undefined) { + this.$__.defaults = options.defaults; + defaults = options.defaults; + } + + const schema = this.$__schema; + + if (typeof fields === 'boolean' || fields === 'throw') { + if (fields !== true) { + this.$__.strictMode = fields; + } + fields = undefined; + } else if (schema.options.strict !== true) { + this.$__.strictMode = schema.options.strict; + } + + const requiredPaths = schema.requiredPaths(true); + for (const path of requiredPaths) { + this.$__.activePaths.require(path); + } + + let exclude = null; + + // determine if this doc is a result of a query with + // excluded fields + if (utils.isPOJO(fields) && Object.keys(fields).length > 0) { + exclude = isExclusive(fields); + this.$__.selected = fields; + this.$__.exclude = exclude; + } + + const hasIncludedChildren = exclude === false && fields ? + $__hasIncludedChildren(fields) : + null; + + if (this._doc == null) { + this.$__buildDoc(obj, fields, skipId, exclude, hasIncludedChildren, false); + + // By default, defaults get applied **before** setting initial values + // Re: gh-6155 + if (defaults) { + applyDefaults(this, fields, exclude, hasIncludedChildren, true, null); + } + } + if (obj) { + // Skip set hooks + if (this.$__original_set) { + this.$__original_set(obj, undefined, true, options); + } else { + this.$set(obj, undefined, true, options); + } + + if (obj instanceof Document) { + this.$isNew = obj.$isNew; + } + } + + // Function defaults get applied **after** setting initial values so they + // see the full doc rather than an empty one, unless they opt out. + // Re: gh-3781, gh-6155 + if (options.willInit && defaults) { + if (options.skipDefaults) { + this.$__.skipDefaults = options.skipDefaults; + } + } else if (defaults) { + applyDefaults(this, fields, exclude, hasIncludedChildren, false, options.skipDefaults); + } + + if (!this.$__.strictMode && obj) { + const _this = this; + const keys = Object.keys(this._doc); + + keys.forEach(function(key) { + // Avoid methods, virtuals, existing fields, and `$` keys. The latter is to avoid overwriting + // Mongoose internals. + if (!(key in schema.tree) && !(key in schema.methods) && !(key in schema.virtuals) && !key.startsWith('$')) { + defineKey({ prop: key, subprops: null, prototype: _this }); + } + }); + } + + applyQueue(this); +} + +Document.prototype.$isMongooseDocumentPrototype = true; + +/** + * Boolean flag specifying if the document is new. If you create a document + * using `new`, this document will be considered "new". `$isNew` is how + * Mongoose determines whether `save()` should use `insertOne()` to create + * a new document or `updateOne()` to update an existing document. + * + * #### Example: + * + * const user = new User({ name: 'John Smith' }); + * user.$isNew; // true + * + * await user.save(); // Sends an `insertOne` to MongoDB + * + * On the other hand, if you load an existing document from the database + * using `findOne()` or another [query operation](https://mongoosejs.com/docs/queries.html), + * `$isNew` will be false. + * + * #### Example: + * + * const user = await User.findOne({ name: 'John Smith' }); + * user.$isNew; // false + * + * Mongoose sets `$isNew` to `false` immediately after `save()` succeeds. + * That means Mongoose sets `$isNew` to false **before** `post('save')` hooks run. + * In `post('save')` hooks, `$isNew` will be `false` if `save()` succeeded. + * + * #### Example: + * + * userSchema.post('save', function() { + * this.$isNew; // false + * }); + * await User.create({ name: 'John Smith' }); + * + * For subdocuments, `$isNew` is true if either the parent has `$isNew` set, + * or if you create a new subdocument. + * + * #### Example: + * + * // Assume `Group` has a document array `users` + * const group = await Group.findOne(); + * group.users[0].$isNew; // false + * + * group.users.push({ name: 'John Smith' }); + * group.users[1].$isNew; // true + * + * @api public + * @property $isNew + * @memberOf Document + * @instance + */ + +Object.defineProperty(Document.prototype, 'isNew', { + get: function() { + return this.$isNew; + }, + set: function(value) { + this.$isNew = value; + } +}); + +/** + * Hash containing current validation errors. + * + * @api public + * @property errors + * @memberOf Document + * @instance + */ + +Object.defineProperty(Document.prototype, 'errors', { + get: function() { + return this.$errors; + }, + set: function(value) { + this.$errors = value; + } +}); + +/*! + * ignore + */ + +Document.prototype.$isNew = true; + +/*! + * Document exposes the NodeJS event emitter API, so you can use + * `on`, `once`, etc. + */ +utils.each( + ['on', 'once', 'emit', 'listeners', 'removeListener', 'setMaxListeners', + 'removeAllListeners', 'addListener'], + function(emitterFn) { + Document.prototype[emitterFn] = function() { + // Delay creating emitter until necessary because emitters take up a lot of memory, + // especially for subdocuments. + if (!this.$__.emitter) { + if (emitterFn === 'emit') { + return; + } + this.$__.emitter = new EventEmitter(); + this.$__.emitter.setMaxListeners(0); + } + return this.$__.emitter[emitterFn].apply(this.$__.emitter, arguments); + }; + Document.prototype[`$${emitterFn}`] = Document.prototype[emitterFn]; + }); + +Document.prototype.constructor = Document; + +for (const i in EventEmitter.prototype) { + Document[i] = EventEmitter.prototype[i]; +} + +/** + * The document's internal schema. + * + * @api private + * @property schema + * @memberOf Document + * @instance + */ + +Document.prototype.$__schema; + +/** + * The document's schema. + * + * @api public + * @property schema + * @memberOf Document + * @instance + */ + +Document.prototype.schema; + +/** + * Empty object that you can use for storing properties on the document. This + * is handy for passing data to middleware without conflicting with Mongoose + * internals. + * + * #### Example: + * + * schema.pre('save', function() { + * // Mongoose will set `isNew` to `false` if `save()` succeeds + * this.$locals.wasNew = this.isNew; + * }); + * + * schema.post('save', function() { + * // Prints true if `isNew` was set before `save()` + * console.log(this.$locals.wasNew); + * }); + * + * @api public + * @property $locals + * @memberOf Document + * @instance + */ + +Object.defineProperty(Document.prototype, '$locals', { + configurable: false, + enumerable: false, + get: function() { + if (this.$__.locals == null) { + this.$__.locals = {}; + } + return this.$__.locals; + }, + set: function(v) { + this.$__.locals = v; + } +}); + +/** + * Legacy alias for `$isNew`. + * + * @api public + * @property isNew + * @memberOf Document + * @see $isNew https://mongoosejs.com/docs/api/document.html#Document.prototype.$isNew + * @instance + */ + +Document.prototype.isNew; + +/** + * Set this property to add additional query filters when Mongoose saves this document and `isNew` is false. + * + * #### Example: + * + * // Make sure `save()` never updates a soft deleted document. + * schema.pre('save', function() { + * this.$where = { isDeleted: false }; + * }); + * + * @api public + * @property $where + * @memberOf Document + * @instance + */ + +Object.defineProperty(Document.prototype, '$where', { + configurable: false, + enumerable: false, + writable: true +}); + +/** + * The string version of this documents _id. + * + * #### Note: + * + * This getter exists on all documents by default. The getter can be disabled by setting the `id` [option](https://mongoosejs.com/docs/guide.html#id) of its `Schema` to false at construction time. + * + * new Schema({ name: String }, { id: false }); + * + * @api public + * @see Schema options https://mongoosejs.com/docs/guide.html#options + * @property id + * @memberOf Document + * @instance + */ + +Document.prototype.id; + +/** + * Hash containing current validation $errors. + * + * @api public + * @property $errors + * @memberOf Document + * @instance + */ + +Document.prototype.$errors; + +/** + * A string containing the current operation that Mongoose is executing + * on this document. May be `null`, `'save'`, `'validate'`, or `'remove'`. + * + * #### Example: + * + * const doc = new Model({ name: 'test' }); + * doc.$op; // null + * + * const promise = doc.save(); + * doc.$op; // 'save' + * + * await promise; + * doc.$op; // null + * + * @api public + * @property $op + * @memberOf Document + * @instance + */ + +Object.defineProperty(Document.prototype, '$op', { + get: function() { + return this.$__.op || null; + }, + set: function(value) { + this.$__.op = value; + } +}); + +/*! + * ignore + */ + +function $applyDefaultsToNested(val, path, doc) { + if (val == null) { + return; + } + + const paths = Object.keys(doc.$__schema.paths); + const plen = paths.length; + + const pathPieces = path.indexOf('.') === -1 ? [path] : path.split('.'); + + for (let i = 0; i < plen; ++i) { + let curPath = ''; + const p = paths[i]; + + if (!p.startsWith(path + '.')) { + continue; + } + + const type = doc.$__schema.paths[p]; + const pieces = type.splitPath().slice(pathPieces.length); + const len = pieces.length; + + if (type.defaultValue === void 0) { + continue; + } + + let cur = val; + + for (let j = 0; j < len; ++j) { + if (cur == null) { + break; + } + + const piece = pieces[j]; + + if (j === len - 1) { + if (cur[piece] !== void 0) { + break; + } + + try { + const def = type.getDefault(doc, false); + if (def !== void 0) { + cur[piece] = def; + } + } catch (err) { + doc.invalidate(path + '.' + curPath, err); + break; + } + + break; + } + + curPath += (!curPath.length ? '' : '.') + piece; + + cur[piece] = cur[piece] || {}; + cur = cur[piece]; + } + } +} + +/** + * Builds the default doc structure + * + * @param {Object} obj + * @param {Object} [fields] + * @param {Boolean} [skipId] + * @param {Boolean} [exclude] + * @param {Object} [hasIncludedChildren] + * @api private + * @method $__buildDoc + * @memberOf Document + * @instance + */ + +Document.prototype.$__buildDoc = function(obj, fields, skipId, exclude, hasIncludedChildren) { + const doc = {}; + + const paths = Object.keys(this.$__schema.paths). + // Don't build up any paths that are underneath a map, we don't know + // what the keys will be + filter(p => !p.includes('$*')); + const plen = paths.length; + let ii = 0; + + for (; ii < plen; ++ii) { + const p = paths[ii]; + + if (p === '_id') { + if (skipId) { + continue; + } + if (obj && '_id' in obj) { + continue; + } + } + + const path = this.$__schema.paths[p].splitPath(); + const len = path.length; + const last = len - 1; + let curPath = ''; + let doc_ = doc; + let included = false; + + for (let i = 0; i < len; ++i) { + const piece = path[i]; + + if (!curPath.length) { + curPath = piece; + } else { + curPath += '.' + piece; + } + + // support excluding intermediary levels + if (exclude === true) { + if (curPath in fields) { + break; + } + } else if (exclude === false && fields && !included) { + if (curPath in fields) { + included = true; + } else if (!hasIncludedChildren[curPath]) { + break; + } + } + + if (i < last) { + doc_ = doc_[piece] || (doc_[piece] = {}); + } + } + } + + this._doc = doc; +}; + +/*! + * Converts to POJO when you use the document for querying + */ + +Document.prototype.toBSON = function() { + return this.toObject(internalToObjectOptions); +}; + +/** + * Initializes the document without setters or marking anything modified. + * + * Called internally after a document is returned from mongodb. Normally, + * you do **not** need to call this function on your own. + * + * This function triggers `init` [middleware](https://mongoosejs.com/docs/middleware.html). + * Note that `init` hooks are [synchronous](https://mongoosejs.com/docs/middleware.html#synchronous). + * + * @param {Object} doc document returned by mongo + * @param {Object} [opts] + * @param {Function} [fn] + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.init = function(doc, opts, fn) { + if (typeof opts === 'function') { + fn = opts; + opts = null; + } + + this.$__init(doc, opts); + + if (fn) { + fn(null, this); + } + + return this; +}; + +/** + * Alias for [`.init`](https://mongoosejs.com/docs/api/document.html#Document.prototype.init()) + * + * @api public + */ + +Document.prototype.$init = function() { + return this.constructor.prototype.init.apply(this, arguments); +}; + +/** + * Internal "init" function + * + * @param {Document} doc + * @param {Object} [opts] + * @returns {Document} this + * @api private + */ + +Document.prototype.$__init = function(doc, opts) { + this.$isNew = false; + opts = opts || {}; + + // handle docs with populated paths + // If doc._id is not null or undefined + if (doc._id != null && opts.populated && opts.populated.length) { + const id = String(doc._id); + for (const item of opts.populated) { + if (item.isVirtual) { + this.$populated(item.path, utils.getValue(item.path, doc), item); + } else { + this.$populated(item.path, item._docs[id], item); + } + + if (item._childDocs == null) { + continue; + } + for (const child of item._childDocs) { + if (child == null || child.$__ == null) { + continue; + } + child.$__.parent = this; + } + item._childDocs = []; + } + } + + init(this, doc, this._doc, opts); + + markArraySubdocsPopulated(this, opts.populated); + this.$emit('init', this); + this.constructor.emit('init', this); + + const hasIncludedChildren = this.$__.exclude === false && this.$__.selected ? + $__hasIncludedChildren(this.$__.selected) : + null; + + applyDefaults(this, this.$__.selected, this.$__.exclude, hasIncludedChildren, false, this.$__.skipDefaults); + return this; +}; + +/** + * Init helper. + * + * @param {Object} self document instance + * @param {Object} obj raw mongodb doc + * @param {Object} doc object we are initializing + * @param {Object} [opts] Optional Options + * @param {Boolean} [opts.setters] Call `applySetters` instead of `cast` + * @param {String} [prefix] Prefix to add to each path + * @api private + */ + +function init(self, obj, doc, opts, prefix) { + prefix = prefix || ''; + + if (obj.$__ != null) { + obj = obj._doc; + } + const keys = Object.keys(obj); + const len = keys.length; + let schemaType; + let path; + let i; + let index = 0; + const strict = self.$__.strictMode; + const docSchema = self.$__schema; + + while (index < len) { + _init(index++); + } + + function _init(index) { + i = keys[index]; + // avoid prototype pollution + if (i === '__proto__' || i === 'constructor') { + return; + } + path = prefix ? prefix + i : i; + schemaType = docSchema.path(path); + // Should still work if not a model-level discriminator, but should not be + // necessary. This is *only* to catch the case where we queried using the + // base model and the discriminated model has a projection + if (docSchema.$isRootDiscriminator && !self.$__isSelected(path)) { + return; + } + + const value = obj[i]; + if (!schemaType && utils.isPOJO(value)) { + // assume nested object + if (!doc[i]) { + doc[i] = {}; + if (!strict && !(i in docSchema.tree) && !(i in docSchema.methods) && !(i in docSchema.virtuals)) { + self[i] = doc[i]; + } + } + init(self, value, doc[i], opts, path + '.'); + } else if (!schemaType) { + doc[i] = value; + if (!strict && !prefix) { + self[i] = value; + } + } else { + // Retain order when overwriting defaults + if (doc.hasOwnProperty(i) && value !== void 0 && !opts.hydratedPopulatedDocs) { + delete doc[i]; + } + if (value === null) { + doc[i] = schemaType._castNullish(null); + } else if (value !== undefined) { + const wasPopulated = value.$__ == null ? null : value.$__.wasPopulated; + + if (schemaType && !wasPopulated && !opts.hydratedPopulatedDocs) { + try { + if (opts && opts.setters) { + // Call applySetters with `init = false` because otherwise setters are a noop + const overrideInit = false; + doc[i] = schemaType.applySetters(value, self, overrideInit); + } else { + doc[i] = schemaType.cast(value, self, true); + } + } catch (e) { + self.invalidate(e.path, new ValidatorError({ + path: e.path, + message: e.message, + type: 'cast', + value: e.value, + reason: e + })); + } + } else { + doc[i] = value; + } + } + // mark as hydrated + if (!self.$isModified(path)) { + self.$__.activePaths.init(path); + } + } + } +} + +/** + * Sends an updateOne command with this document `_id` as the query selector. + * + * #### Example: + * + * weirdCar.updateOne({$inc: {wheels:1}}, { w: 1 }, callback); + * + * #### Valid options: + * + * - same as in [Model.updateOne](https://mongoosejs.com/docs/api/model.html#Model.updateOne) + * + * @see Model.updateOne https://mongoosejs.com/docs/api/model.html#Model.updateOne + * @param {Object} doc + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and the [Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Function} [callback] + * @return {Query} + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.updateOne = function updateOne(doc, options, callback) { + const query = this.constructor.updateOne({ _id: this._id }, doc, options); + const self = this; + query.pre(function queryPreUpdateOne(cb) { + self.constructor._middleware.execPre('updateOne', self, [self], cb); + }); + query.post(function queryPostUpdateOne(cb) { + self.constructor._middleware.execPost('updateOne', self, [self], {}, cb); + }); + + if (this.$session() != null) { + if (!('session' in query.options)) { + query.options.session = this.$session(); + } + } + + if (callback != null) { + return query.exec(callback); + } + + return query; +}; + +/** + * Sends a replaceOne command with this document `_id` as the query selector. + * + * #### Valid options: + * + * - same as in [Model.replaceOne](https://mongoosejs.com/docs/api/model.html#Model.replaceOne()) + * + * @see Model.replaceOne https://mongoosejs.com/docs/api/model.html#Model.replaceOne() + * @param {Object} doc + * @param {Object} [options] + * @param {Function} [callback] + * @return {Query} + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.replaceOne = function replaceOne() { + const args = [...arguments]; + args.unshift({ _id: this._id }); + return this.constructor.replaceOne.apply(this.constructor, args); +}; + +/** + * Getter/setter around the session associated with this document. Used to + * automatically set `session` if you `save()` a doc that you got from a + * query with an associated session. + * + * #### Example: + * + * const session = MyModel.startSession(); + * const doc = await MyModel.findOne().session(session); + * doc.$session() === session; // true + * doc.$session(null); + * doc.$session() === null; // true + * + * If this is a top-level document, setting the session propagates to all child + * docs. + * + * @param {ClientSession} [session] overwrite the current session + * @return {ClientSession} + * @method $session + * @api public + * @memberOf Document + */ + +Document.prototype.$session = function $session(session) { + if (arguments.length === 0) { + if (this.$__.session != null && this.$__.session.hasEnded) { + this.$__.session = null; + return null; + } + return this.$__.session; + } + + if (session != null && session.hasEnded) { + throw new MongooseError('Cannot set a document\'s session to a session that has ended. Make sure you haven\'t ' + + 'called `endSession()` on the session you are passing to `$session()`.'); + } + + if (session == null && this.$__.session == null) { + return; + } + + this.$__.session = session; + + if (!this.$isSubdocument) { + const subdocs = this.$getAllSubdocs(); + for (const child of subdocs) { + child.$session(session); + } + } + + return session; +}; + +/** + * Getter/setter around whether this document will apply timestamps by + * default when using `save()` and `bulkSave()`. + * + * #### Example: + * + * const TestModel = mongoose.model('Test', new Schema({ name: String }, { timestamps: true })); + * const doc = new TestModel({ name: 'John Smith' }); + * + * doc.$timestamps(); // true + * + * doc.$timestamps(false); + * await doc.save(); // Does **not** apply timestamps + * + * @param {Boolean} [value] overwrite the current session + * @return {Document|boolean|undefined} When used as a getter (no argument), a boolean will be returned indicating the timestamps option state or if unset "undefined" will be used, otherwise will return "this" + * @method $timestamps + * @api public + * @memberOf Document + */ + +Document.prototype.$timestamps = function $timestamps(value) { + if (arguments.length === 0) { + if (this.$__.timestamps != null) { + return this.$__.timestamps; + } + + if (this.$__schema) { + return this.$__schema.options.timestamps; + } + + return undefined; + } + + const currentValue = this.$timestamps(); + if (value !== currentValue) { + this.$__.timestamps = value; + } + + return this; +}; + +/** + * Overwrite all values in this document with the values of `obj`, except + * for immutable properties. Behaves similarly to `set()`, except for it + * unsets all properties that aren't in `obj`. + * + * @param {Object} obj the object to overwrite this document with + * @method overwrite + * @memberOf Document + * @instance + * @api public + * @return {Document} this + */ + +Document.prototype.overwrite = function overwrite(obj) { + const keys = Array.from(new Set(Object.keys(this._doc).concat(Object.keys(obj)))); + + for (const key of keys) { + if (key === '_id') { + continue; + } + // Explicitly skip version key + if (this.$__schema.options.versionKey && key === this.$__schema.options.versionKey) { + continue; + } + if (this.$__schema.options.discriminatorKey && key === this.$__schema.options.discriminatorKey) { + continue; + } + this.$set(key, obj[key]); + } + + return this; +}; + +/** + * Alias for `set()`, used internally to avoid conflicts + * + * @param {String|Object} path path or object of key/vals to set + * @param {Any} val the value to set + * @param {Schema|String|Number|Buffer|*} [type] optionally specify a type for "on-the-fly" attributes + * @param {Object} [options] optionally specify options that modify the behavior of the set + * @param {Boolean} [options.merge=false] if true, setting a [nested path](https://mongoosejs.com/docs/subdocs.html#subdocuments-versus-nested-paths) will merge existing values rather than overwrite the whole object. So `doc.set('nested', { a: 1, b: 2 })` becomes `doc.set('nested.a', 1); doc.set('nested.b', 2);` + * @return {Document} this + * @method $set + * @memberOf Document + * @instance + * @api public + */ + +Document.prototype.$set = function $set(path, val, type, options) { + if (utils.isPOJO(type)) { + options = type; + type = undefined; + } + + const merge = options && options.merge; + const adhoc = type && type !== true; + const constructing = type === true; + let adhocs; + let keys; + let i = 0; + let pathtype; + let key; + let prefix; + + const userSpecifiedStrict = options && 'strict' in options; + let strict = userSpecifiedStrict + ? options.strict + : this.$__.strictMode; + + if (adhoc) { + adhocs = this.$__.adhocPaths || (this.$__.adhocPaths = {}); + adhocs[path] = this.$__schema.interpretAsType(path, type, this.$__schema.options); + } + + if (path == null) { + [path, val] = [val, path]; + } else if (typeof path !== 'string') { + // new Document({ key: val }) + if (path instanceof Document) { + if (path.$__isNested) { + path = path.toObject(); + } else { + // This ternary is to support gh-7898 (copying virtuals if same schema) + // while not breaking gh-10819, which for some reason breaks if we use toObject() + path = path.$__schema === this.$__schema + ? applyVirtuals(path, { ...path._doc }) + : path._doc; + } + } + if (path == null) { + [path, val] = [val, path]; + } + + prefix = val ? val + '.' : ''; + keys = getKeysInSchemaOrder(this.$__schema, path); + + const len = keys.length; + + // `_skipMinimizeTopLevel` is because we may have deleted the top-level + // nested key to ensure key order. + const _skipMinimizeTopLevel = options && options._skipMinimizeTopLevel || false; + if (len === 0 && _skipMinimizeTopLevel) { + delete options._skipMinimizeTopLevel; + if (val) { + this.$set(val, {}); + } + return this; + } + + options = Object.assign({}, options, { _skipMinimizeTopLevel: false }); + + for (let i = 0; i < len; ++i) { + key = keys[i]; + const pathName = prefix ? prefix + key : key; + pathtype = this.$__schema.pathType(pathName); + const valForKey = path[key]; + + // On initial set, delete any nested keys if we're going to overwrite + // them to ensure we keep the user's key order. + if (type === true && + !prefix && + valForKey != null && + pathtype === 'nested' && + this._doc[key] != null) { + delete this._doc[key]; + } + + if (utils.isNonBuiltinObject(valForKey) && pathtype === 'nested') { + this.$set(pathName, valForKey, constructing, Object.assign({}, options, { _skipMarkModified: true })); + $applyDefaultsToNested(this.$get(pathName), pathName, this); + continue; + } else if (strict) { + // Don't overwrite defaults with undefined keys (gh-3981) (gh-9039) + if (constructing && valForKey === void 0 && + this.$get(pathName) !== void 0) { + continue; + } + + if (pathtype === 'adhocOrUndefined') { + pathtype = getEmbeddedDiscriminatorPath(this, pathName, { typeOnly: true }); + } + + if (pathtype === 'real' || pathtype === 'virtual') { + this.$set(pathName, valForKey, constructing, options); + } else if (pathtype === 'nested' && valForKey instanceof Document) { + this.$set(pathName, + valForKey.toObject({ transform: false }), constructing, options); + } else if (strict === 'throw') { + if (pathtype === 'nested') { + throw new ObjectExpectedError(key, valForKey); + } else { + throw new StrictModeError(key); + } + } else if (pathtype === 'nested' && valForKey == null) { + this.$set(pathName, valForKey, constructing, options); + } + } else if (valForKey !== void 0) { + this.$set(pathName, valForKey, constructing, options); + } + } + + // Ensure all properties are in correct order + const orderedDoc = {}; + const orderedKeys = Object.keys(this.$__schema.tree); + for (let i = 0, len = orderedKeys.length; i < len; ++i) { + (key = orderedKeys[i]) && + (this._doc.hasOwnProperty(key)) && + (orderedDoc[key] = undefined); + } + this._doc = Object.assign(orderedDoc, this._doc); + + return this; + } + + let pathType = this.$__schema.pathType(path); + let parts = null; + if (pathType === 'adhocOrUndefined') { + parts = path.indexOf('.') === -1 ? [path] : path.split('.'); + pathType = getEmbeddedDiscriminatorPath(this, parts, { typeOnly: true }); + } + if (pathType === 'adhocOrUndefined' && !userSpecifiedStrict) { + // May be path underneath non-strict schema + if (parts == null) { + parts = path.indexOf('.') === -1 ? [path] : path.split('.'); + } + const subdocStrict = getSubdocumentStrictValue(this.$__schema, parts); + if (subdocStrict !== undefined) { + strict = subdocStrict; + } + } + + // Assume this is a Mongoose document that was copied into a POJO using + // `Object.assign()` or `{...doc}` + val = handleSpreadDoc(val, true); + + // if this doc is being constructed we should not trigger getters + const priorVal = (() => { + if (this.$__.priorDoc != null) { + return this.$__.priorDoc.$__getValue(path); + } + if (constructing) { + return void 0; + } + return this.$__getValue(path); + })(); + + if (pathType === 'nested' && val) { + if (typeof val === 'object' && val != null) { + if (val.$__ != null) { + val = val.toObject(internalToObjectOptions); + } + if (val == null) { + this.invalidate(path, new MongooseError.CastError('Object', val, path)); + return this; + } + const wasModified = this.$isModified(path); + const hasInitialVal = this.$__.savedState != null && this.$__.savedState.hasOwnProperty(path); + if (this.$__.savedState != null && !this.$isNew && !this.$__.savedState.hasOwnProperty(path)) { + const initialVal = this.$__getValue(path); + this.$__.savedState[path] = initialVal; + + const keys = Object.keys(initialVal || {}); + for (const key of keys) { + this.$__.savedState[path + '.' + key] = initialVal[key]; + } + } + + if (!merge) { + this.$__setValue(path, null); + cleanModifiedSubpaths(this, path); + } else { + return this.$set(val, path, constructing); + } + + const keys = getKeysInSchemaOrder(this.$__schema, val, path); + + this.$__setValue(path, {}); + for (const key of keys) { + this.$set(path + '.' + key, val[key], constructing, { ...options, _skipMarkModified: true }); + } + if (priorVal != null && + (!wasModified || hasInitialVal) && + utils.deepEqual(hasInitialVal ? this.$__.savedState[path] : priorVal, val)) { + this.unmarkModified(path); + } else { + this.markModified(path); + } + return this; + } + this.invalidate(path, new MongooseError.CastError('Object', val, path)); + return this; + } + + let schema; + if (parts == null) { + parts = path.indexOf('.') === -1 ? [path] : path.split('.'); + } + + // Might need to change path for top-level alias + if (typeof this.$__schema.aliases[parts[0]] === 'string') { + parts[0] = this.$__schema.aliases[parts[0]]; + } + + if (pathType === 'adhocOrUndefined' && strict) { + // check for roots that are Mixed types + let mixed; + + for (i = 0; i < parts.length; ++i) { + const subpath = parts.slice(0, i + 1).join('.'); + + // If path is underneath a virtual, bypass everything and just set it. + if (i + 1 < parts.length && this.$__schema.pathType(subpath) === 'virtual') { + mpath.set(path, val, this); + return this; + } + + schema = this.$__schema.path(subpath); + if (schema == null) { + continue; + } + + if (schema instanceof MixedSchema) { + // allow changes to sub paths of mixed types + mixed = true; + break; + } else if (schema.$isSchemaMap && schema.$__schemaType instanceof MixedSchema && i < parts.length - 1) { + // Map of mixed and not the last element in the path resolves to mixed + mixed = true; + schema = schema.$__schemaType; + break; + } + } + + if (schema == null) { + // Check for embedded discriminators + schema = getEmbeddedDiscriminatorPath(this, path); + } + + if (!mixed && !schema) { + if (strict === 'throw') { + throw new StrictModeError(path); + } + return this; + } + } else if (pathType === 'virtual') { + schema = this.$__schema.virtualpath(path); + schema.applySetters(val, this); + return this; + } else { + schema = this.$__path(path); + } + + // gh-4578, if setting a deeply nested path that doesn't exist yet, create it + let cur = this._doc; + let curPath = ''; + for (i = 0; i < parts.length - 1; ++i) { + cur = cur[parts[i]]; + curPath += (curPath.length !== 0 ? '.' : '') + parts[i]; + if (!cur) { + this.$set(curPath, {}); + // Hack re: gh-5800. If nested field is not selected, it probably exists + // so `MongoServerError: cannot use the part (nested of nested.num) to + // traverse the element ({nested: null})` is not likely. If user gets + // that error, its their fault for now. We should reconsider disallowing + // modifying not selected paths for 6.x + if (!this.$__isSelected(curPath)) { + this.unmarkModified(curPath); + } + cur = this.$__getValue(curPath); + } + } + + let pathToMark; + + // When using the $set operator the path to the field must already exist. + // Else mongodb throws: "LEFT_SUBFIELD only supports Object" + + if (parts.length <= 1) { + pathToMark = path; + } else { + const len = parts.length; + for (i = 0; i < len; ++i) { + const subpath = parts.slice(0, i + 1).join('.'); + if (this.$get(subpath, null, { getters: false }) === null) { + pathToMark = subpath; + break; + } + } + + if (!pathToMark) { + pathToMark = path; + } + } + + if (!schema) { + this.$__set(pathToMark, path, options, constructing, parts, schema, val, priorVal); + + if (pathType === 'nested' && val == null) { + cleanModifiedSubpaths(this, path); + } + return this; + } + + // If overwriting a subdocument path, make sure to clear out + // any errors _before_ setting, so new errors that happen + // get persisted. Re: #9080 + if (schema.$isSingleNested || schema.$isMongooseArray) { + _markValidSubpaths(this, path); + } + + if (val != null && merge && schema.$isSingleNested) { + if (val instanceof Document) { + val = val.toObject({ virtuals: false, transform: false }); + } + const keys = Object.keys(val); + for (const key of keys) { + this.$set(path + '.' + key, val[key], constructing, options); + } + + return this; + } + + let shouldSet = true; + try { + // If the user is trying to set a ref path to a document with + // the correct model name, treat it as populated + const refMatches = (() => { + if (schema.options == null) { + return false; + } + if (!(val instanceof Document)) { + return false; + } + const model = val.constructor; + + // Check ref + const ref = schema.options.ref; + if (ref != null && (ref === model.modelName || ref === model.baseModelName)) { + return true; + } + + // Check refPath + const refPath = schema.options.refPath; + if (refPath == null) { + return false; + } + const modelName = val.get(refPath); + return modelName === model.modelName || modelName === model.baseModelName; + })(); + + let didPopulate = false; + if (refMatches && val instanceof Document && (!val.$__.wasPopulated || utils.deepEqual(val.$__.wasPopulated.value, val._id))) { + const unpopulatedValue = (schema && schema.$isSingleNested) ? schema.cast(val, this) : val._id; + this.$populated(path, unpopulatedValue, { [populateModelSymbol]: val.constructor }); + val.$__.wasPopulated = { value: unpopulatedValue }; + didPopulate = true; + } + + let popOpts; + const typeKey = this.$__schema.options.typeKey; + if (schema.options && + Array.isArray(schema.options[typeKey]) && + schema.options[typeKey].length && + schema.options[typeKey][0] && + schema.options[typeKey][0].ref && + _isManuallyPopulatedArray(val, schema.options[typeKey][0].ref)) { + popOpts = { [populateModelSymbol]: val[0].constructor }; + this.$populated(path, val.map(function(v) { return v._id; }), popOpts); + + for (const doc of val) { + doc.$__.wasPopulated = { value: doc._id }; + } + didPopulate = true; + } + + if (!refMatches || !schema.$isSingleNested || !val.$__) { + // If this path is underneath a single nested schema, we'll call the setter + // later in `$__set()` because we don't take `_doc` when we iterate through + // a single nested doc. That's to make sure we get the correct context. + // Otherwise we would double-call the setter, see gh-7196. + let setterContext = this; + if (this.$__schema.singleNestedPaths[path] != null && parts.length > 1) { + setterContext = getDeepestSubdocumentForPath(this, parts, this.schema); + } + if (options != null && options.overwriteImmutable) { + val = schema.applySetters(val, setterContext, false, priorVal, { overwriteImmutable: true }); + } else { + val = schema.applySetters(val, setterContext, false, priorVal); + } + } + + if (Array.isArray(val) && + !Array.isArray(schema) && + schema.$isMongooseDocumentArray && + val.length !== 0 && + val[0] != null && + val[0].$__ != null && + val[0].$__.populated != null) { + const populatedPaths = Object.keys(val[0].$__.populated); + for (const populatedPath of populatedPaths) { + this.$populated(path + '.' + populatedPath, + val.map(v => v.$populated(populatedPath)), + val[0].$__.populated[populatedPath].options); + } + didPopulate = true; + } + + if (!didPopulate && this.$__.populated) { + // If this array partially contains populated documents, convert them + // all to ObjectIds re: #8443 + if (Array.isArray(val) && this.$__.populated[path]) { + for (let i = 0; i < val.length; ++i) { + if (val[i] instanceof Document) { + val.set(i, val[i]._id, true); + } + } + } + delete this.$__.populated[path]; + } + + if (val != null && schema.$isSingleNested) { + _checkImmutableSubpaths(val, schema, priorVal); + } + + this.$markValid(path); + } catch (e) { + if (e instanceof MongooseError.StrictModeError && e.isImmutableError) { + this.invalidate(path, e); + } else if (e instanceof MongooseError.CastError) { + this.invalidate(e.path, e); + if (e.$originalErrorPath) { + this.invalidate(path, + new MongooseError.CastError(schema.instance, val, path, e.$originalErrorPath)); + } + } else { + this.invalidate(path, + new MongooseError.CastError(schema.instance, val, path, e)); + } + shouldSet = false; + } + + if (shouldSet) { + let savedState = null; + let savedStatePath = null; + if (!constructing) { + const doc = this.$isSubdocument ? this.ownerDocument() : this; + savedState = doc.$__.savedState; + savedStatePath = this.$isSubdocument ? this.$__.fullPath + '.' + path : path; + doc.$__saveInitialState(savedStatePath); + } + + this.$__set(pathToMark, path, options, constructing, parts, schema, val, priorVal); + + const isInTransaction = !!this.$__.session?.transaction; + const isModifiedWithinTransaction = this.$__.session && + this.$__.session[sessionNewDocuments] && + this.$__.session[sessionNewDocuments].has(this) && + this.$__.session[sessionNewDocuments].get(this).modifiedPaths && + !this.$__.session[sessionNewDocuments].get(this).modifiedPaths.has(savedStatePath); + if (savedState != null && + savedState.hasOwnProperty(savedStatePath) && + (!isInTransaction || isModifiedWithinTransaction) && + utils.deepEqual(val, savedState[savedStatePath])) { + this.unmarkModified(path); + } + } + + if (schema.$isSingleNested && (this.isDirectModified(path) || val == null)) { + cleanModifiedSubpaths(this, path); + } + + return this; +}; + +/*! + * ignore + */ + +function _isManuallyPopulatedArray(val, ref) { + if (!Array.isArray(val)) { + return false; + } + if (val.length === 0) { + return false; + } + + for (const el of val) { + if (!(el instanceof Document)) { + return false; + } + const modelName = el.constructor.modelName; + if (modelName == null) { + return false; + } + if (el.constructor.modelName != ref && el.constructor.baseModelName != ref) { + return false; + } + } + + return true; +} + +/** + * Sets the value of a path, or many paths. + * Alias for [`.$set`](https://mongoosejs.com/docs/api/document.html#Document.prototype.$set()). + * + * #### Example: + * + * // path, value + * doc.set(path, value) + * + * // object + * doc.set({ + * path : value + * , path2 : { + * path : value + * } + * }) + * + * // on-the-fly cast to number + * doc.set(path, value, Number) + * + * // on-the-fly cast to string + * doc.set(path, value, String) + * + * // changing strict mode behavior + * doc.set(path, value, { strict: false }); + * + * @param {String|Object} path path or object of key/vals to set + * @param {Any} val the value to set + * @param {Schema|String|Number|Buffer|*} [type] optionally specify a type for "on-the-fly" attributes + * @param {Object} [options] optionally specify options that modify the behavior of the set + * @return {Document} this + * @api public + * @method set + * @memberOf Document + * @instance + */ + +Document.prototype.set = Document.prototype.$set; + +/** + * Determine if we should mark this change as modified. + * + * @param {never} pathToMark UNUSED + * @param {String|Symbol} path + * @param {Object} options + * @param {Any} constructing + * @param {never} parts UNUSED + * @param {Schema} schema + * @param {Any} val + * @param {Any} priorVal + * @return {Boolean} + * @api private + * @method $__shouldModify + * @memberOf Document + * @instance + */ + +Document.prototype.$__shouldModify = function(pathToMark, path, options, constructing, parts, schema, val, priorVal) { + if (options && options._skipMarkModified) { + return false; + } + if (this.$isNew) { + return true; + } + // Is path already modified? If so, always modify. We may unmark modified later. + if (path in this.$__.activePaths.getStatePaths('modify')) { + return true; + } + + if (val === void 0 && !this.$__isSelected(path)) { + // when a path is not selected in a query, its initial + // value will be undefined. + return true; + } + + if (val === void 0 && path in this.$__.activePaths.getStatePaths('default')) { + // we're just unsetting the default value which was never saved + return false; + } + + // gh-3992: if setting a populated field to a doc, don't mark modified + // if they have the same _id + if (this.$populated(path) && + val instanceof Document && + deepEqual(val._id, priorVal)) { + return false; + } + + if (!deepEqual(val, priorVal !== undefined ? priorVal : utils.getValue(path, this))) { + return true; + } + + if (!constructing && + val !== null && + val !== undefined && + path in this.$__.activePaths.getStatePaths('default') && + deepEqual(val, schema.getDefault(this, constructing))) { + // a path with a default was $unset on the server + // and the user is setting it to the same value again + return true; + } + return false; +}; + +/** + * Handles the actual setting of the value and marking the path modified if appropriate. + * + * @param {String} pathToMark + * @param {String|Symbol} path + * @param {Object} options + * @param {Any} constructing + * @param {Array} parts + * @param {Schema} schema + * @param {Any} val + * @param {Any} priorVal + * @api private + * @method $__set + * @memberOf Document + * @instance + */ + +Document.prototype.$__set = function(pathToMark, path, options, constructing, parts, schema, val, priorVal) { + Embedded = Embedded || require('./types/arraySubdocument'); + + const shouldModify = this.$__shouldModify(pathToMark, path, options, constructing, parts, + schema, val, priorVal); + + if (shouldModify) { + if (this.$__.primitiveAtomics && this.$__.primitiveAtomics[path]) { + delete this.$__.primitiveAtomics[path]; + if (Object.keys(this.$__.primitiveAtomics).length === 0) { + delete this.$__.primitiveAtomics; + } + } + this.markModified(pathToMark); + + // handle directly setting arrays (gh-1126) + MongooseArray || (MongooseArray = require('./types/array')); + if (val && utils.isMongooseArray(val)) { + val._registerAtomic('$set', val); + + // Update embedded document parent references (gh-5189) + if (utils.isMongooseDocumentArray(val)) { + val.forEach(function(item) { + item && item.__parentArray && (item.__parentArray = val); + }); + } + } + } else if (Array.isArray(val) && Array.isArray(priorVal) && utils.isMongooseArray(val) && utils.isMongooseArray(priorVal)) { + val[arrayAtomicsSymbol] = priorVal[arrayAtomicsSymbol]; + val[arrayAtomicsBackupSymbol] = priorVal[arrayAtomicsBackupSymbol]; + if (utils.isMongooseDocumentArray(val)) { + val.forEach(doc => { + if (doc != null) { + doc.$isNew = false; + } + }); + } + } + + let obj = this._doc; + let i = 0; + const l = parts.length; + let cur = ''; + + for (; i < l; i++) { + const next = i + 1; + const last = next === l; + cur += (cur ? '.' + parts[i] : parts[i]); + if (specialProperties.has(parts[i])) { + return; + } + + if (last) { + if (obj instanceof Map) { + obj.set(parts[i], val); + } else if (obj.$isSingleNested) { + if (!(parts[i] in obj)) { + obj[parts[i]] = val; + obj._doc[parts[i]] = val; + } else { + obj._doc[parts[i]] = val; + } + if (shouldModify) { + obj.markModified(parts[i]); + } + } else { + obj[parts[i]] = val; + } + } else { + const isMap = obj instanceof Map; + let value = isMap ? obj.get(parts[i]) : obj[parts[i]]; + if (utils.isPOJO(value)) { + obj = value; + } else if (value && value instanceof Embedded) { + obj = value; + } else if (value && !Array.isArray(value) && value.$isSingleNested) { + obj = value; + } else if (value && Array.isArray(value)) { + obj = value; + } else if (value == null) { + value = {}; + if (isMap) { + obj.set(parts[i], value); + } else { + obj[parts[i]] = value; + } + obj = value; + } else { + obj = value; + } + } + } +}; + +/** + * Gets a raw value from a path (no getters) + * + * @param {String} path + * @return {Any} Returns the value from the given `path`. + * @api private + */ + +Document.prototype.$__getValue = function(path) { + return utils.getValue(path, this._doc); +}; + +/** + * Increments the numeric value at `path` by the given `val`. + * When you call `save()` on this document, Mongoose will send a + * [`$inc`](https://www.mongodb.com/docs/manual/reference/operator/update/inc/) + * as opposed to a `$set`. + * + * #### Example: + * + * const schema = new Schema({ counter: Number }); + * const Test = db.model('Test', schema); + * + * const doc = await Test.create({ counter: 0 }); + * doc.$inc('counter', 2); + * await doc.save(); // Sends a `{ $inc: { counter: 2 } }` to MongoDB + * doc.counter; // 2 + * + * doc.counter += 2; + * await doc.save(); // Sends a `{ $set: { counter: 2 } }` to MongoDB + * + * @param {String|Array} path path or paths to update + * @param {Number} val increment `path` by this value + * @return {Document} this + */ + +Document.prototype.$inc = function $inc(path, val) { + if (val == null) { + val = 1; + } + + if (Array.isArray(path)) { + path.forEach((p) => this.$inc(p, val)); + return this; + } + + const schemaType = this.$__path(path); + if (schemaType == null) { + if (this.$__.strictMode === 'throw') { + throw new StrictModeError(path); + } else if (this.$__.strictMode === true) { + return this; + } + } else if (schemaType.instance !== 'Number') { + this.invalidate(path, new MongooseError.CastError(schemaType.instance, val, path)); + return this; + } + + const currentValue = this.$__getValue(path) || 0; + let shouldSet = false; + let valToSet = null; + let valToInc = val; + + try { + val = schemaType.cast(val); + valToSet = schemaType.applySetters(currentValue + val, this); + valToInc = valToSet - currentValue; + shouldSet = true; + } catch (err) { + this.invalidate(path, new MongooseError.CastError('number', val, path, err)); + } + + if (shouldSet) { + this.$__.primitiveAtomics = this.$__.primitiveAtomics || {}; + if (this.$__.primitiveAtomics[path] == null) { + this.$__.primitiveAtomics[path] = { $inc: valToInc }; + } else { + this.$__.primitiveAtomics[path].$inc += valToInc; + } + this.markModified(path); + this.$__setValue(path, valToSet); + } + + return this; +}; + +/** + * Sets a raw value for a path (no casting, setters, transformations) + * + * @param {String} path + * @param {Object} value + * @return {Document} this + * @api private + */ + +Document.prototype.$__setValue = function(path, val) { + utils.setValue(path, val, this._doc); + return this; +}; + +/** + * Returns the value of a path. + * + * #### Example: + * + * // path + * doc.get('age') // 47 + * + * // dynamic casting to a string + * doc.get('age', String) // "47" + * + * @param {String} path + * @param {Schema|String|Number|Buffer|*} [type] optionally specify a type for on-the-fly attributes + * @param {Object} [options] + * @param {Boolean} [options.virtuals=false] Apply virtuals before getting this path + * @param {Boolean} [options.getters=true] If false, skip applying getters and just get the raw value + * @return {Any} + * @api public + */ + +Document.prototype.get = function(path, type, options) { + let adhoc; + if (options == null) { + options = {}; + } + if (type) { + adhoc = this.$__schema.interpretAsType(path, type, this.$__schema.options); + } + const noDottedPath = options.noDottedPath; + + // Fast path if we know we're just accessing top-level path on the document: + // just get the schema path, avoid `$__path()` because that does string manipulation + let schema = noDottedPath ? this.$__schema.paths[path] : this.$__path(path); + if (schema == null) { + schema = this.$__schema.virtualpath(path); + + if (schema != null) { + return schema.applyGetters(void 0, this); + } + } + + if (noDottedPath) { + let obj = this._doc[path]; + if (adhoc) { + obj = adhoc.cast(obj); + } + if (schema != null && options.getters !== false) { + return schema.applyGetters(obj, this); + } + return obj; + } + + if (schema != null && schema.instance === 'Mixed') { + const virtual = this.$__schema.virtualpath(path); + if (virtual != null) { + schema = virtual; + } + } + + const hasDot = path.indexOf('.') !== -1; + let obj = this._doc; + + const pieces = hasDot ? path.split('.') : [path]; + // Might need to change path for top-level alias + if (typeof this.$__schema.aliases[pieces[0]] === 'string') { + pieces[0] = this.$__schema.aliases[pieces[0]]; + } + + for (let i = 0, l = pieces.length; i < l; i++) { + if (obj && obj._doc) { + obj = obj._doc; + } + + if (obj == null) { + obj = void 0; + } else if (obj instanceof Map) { + obj = obj.get(pieces[i], { getters: false }); + } else if (i === l - 1) { + obj = utils.getValue(pieces[i], obj); + } else { + obj = obj[pieces[i]]; + } + } + + if (adhoc) { + obj = adhoc.cast(obj); + } + + if (schema != null && options.getters !== false) { + obj = schema.applyGetters(obj, this); + } else if (this.$__schema.nested[path] && options.virtuals) { + // Might need to apply virtuals if this is a nested path + return applyVirtuals(this, clone(obj) || {}, { path: path }); + } + + return obj; +}; + +/*! + * ignore + */ + +Document.prototype[getSymbol] = Document.prototype.get; +Document.prototype.$get = Document.prototype.get; + +/** + * Returns the schematype for the given `path`. + * + * @param {String} path + * @return {SchemaPath} + * @api private + * @method $__path + * @memberOf Document + * @instance + */ + +Document.prototype.$__path = function(path) { + const adhocs = this.$__.adhocPaths; + const adhocType = adhocs && adhocs.hasOwnProperty(path) ? adhocs[path] : null; + + if (adhocType) { + return adhocType; + } + return this.$__schema.path(path); +}; + +/** + * Marks the path as having pending changes to write to the db. + * + * _Very helpful when using [Mixed](https://mongoosejs.com/docs/schematypes.html#mixed) types._ + * + * #### Example: + * + * doc.mixed.type = 'changed'; + * doc.markModified('mixed.type'); + * doc.save() // changes to mixed.type are now persisted + * + * @param {String} path the path to mark modified + * @param {Document} [scope] the scope to run validators with + * @api public + */ + +Document.prototype.markModified = function(path, scope) { + this.$__saveInitialState(path); + + this.$__.activePaths.modify(path); + if (scope != null && !this.$isSubdocument) { + this.$__.pathsToScopes = this.$__pathsToScopes || {}; + this.$__.pathsToScopes[path] = scope; + } +}; + +/*! + * ignore + */ + +Document.prototype.$__saveInitialState = function $__saveInitialState(path) { + const savedState = this.$__.savedState; + const savedStatePath = path; + if (savedState != null) { + const firstDot = savedStatePath.indexOf('.'); + const topLevelPath = firstDot === -1 ? savedStatePath : savedStatePath.slice(0, firstDot); + if (!savedState.hasOwnProperty(topLevelPath)) { + savedState[topLevelPath] = clone(this.$__getValue(topLevelPath)); + } + } +}; + +/** + * Clears the modified state on the specified path. + * + * #### Example: + * + * doc.foo = 'bar'; + * doc.unmarkModified('foo'); + * doc.save(); // changes to foo will not be persisted + * + * @param {String} path the path to unmark modified + * @api public + */ + +Document.prototype.unmarkModified = function(path) { + this.$__.activePaths.init(path); + if (this.$__.pathsToScopes != null) { + delete this.$__.pathsToScopes[path]; + } +}; + +/** + * Don't run validation on this path or persist changes to this path. + * + * #### Example: + * + * doc.foo = null; + * doc.$ignore('foo'); + * doc.save(); // changes to foo will not be persisted and validators won't be run + * + * @memberOf Document + * @instance + * @method $ignore + * @param {String} path the path to ignore + * @api public + */ + +Document.prototype.$ignore = function(path) { + this.$__.activePaths.ignore(path); +}; + +/** + * Returns the list of paths that have been directly modified. A direct + * modified path is a path that you explicitly set, whether via `doc.foo = 'bar'`, + * `Object.assign(doc, { foo: 'bar' })`, or `doc.set('foo', 'bar')`. + * + * A path `a` may be in `modifiedPaths()` but not in `directModifiedPaths()` + * because a child of `a` was directly modified. + * + * #### Example: + * + * const schema = new Schema({ foo: String, nested: { bar: String } }); + * const Model = mongoose.model('Test', schema); + * await Model.create({ foo: 'original', nested: { bar: 'original' } }); + * + * const doc = await Model.findOne(); + * doc.nested.bar = 'modified'; + * doc.directModifiedPaths(); // ['nested.bar'] + * doc.modifiedPaths(); // ['nested', 'nested.bar'] + * + * @return {String[]} + * @api public + */ + +Document.prototype.directModifiedPaths = function() { + return Object.keys(this.$__.activePaths.getStatePaths('modify')); +}; + +/** + * Returns true if the given path is nullish or only contains empty objects. + * Useful for determining whether this subdoc will get stripped out by the + * [minimize option](https://mongoosejs.com/docs/guide.html#minimize). + * + * #### Example: + * + * const schema = new Schema({ nested: { foo: String } }); + * const Model = mongoose.model('Test', schema); + * const doc = new Model({}); + * doc.$isEmpty('nested'); // true + * doc.nested.$isEmpty(); // true + * + * doc.nested.foo = 'bar'; + * doc.$isEmpty('nested'); // false + * doc.nested.$isEmpty(); // false + * + * @param {String} [path] + * @memberOf Document + * @instance + * @api public + * @method $isEmpty + * @return {Boolean} + */ + +Document.prototype.$isEmpty = function(path) { + const isEmptyOptions = { + minimize: true, + virtuals: false, + getters: false, + transform: false + }; + + if (arguments.length !== 0) { + const v = this.$get(path); + if (v == null) { + return true; + } + if (typeof v !== 'object') { + return false; + } + if (utils.isPOJO(v)) { + return _isEmpty(v); + } + return Object.keys(v.toObject(isEmptyOptions)).length === 0; + } + + return Object.keys(this.toObject(isEmptyOptions)).length === 0; +}; + +/*! + * ignore + */ + +function _isEmpty(v) { + if (v == null) { + return true; + } + if (typeof v !== 'object' || Array.isArray(v)) { + return false; + } + for (const key of Object.keys(v)) { + if (!_isEmpty(v[key])) { + return false; + } + } + return true; +} + +/** + * Returns the list of paths that have been modified. + * + * @param {Object} [options] + * @param {Boolean} [options.includeChildren=false] if true, returns children of modified paths as well. For example, if false, the list of modified paths for `doc.colors = { primary: 'blue' };` will **not** contain `colors.primary`. If true, `modifiedPaths()` will return an array that contains `colors.primary`. + * @return {String[]} + * @api public + */ + +Document.prototype.modifiedPaths = function(options) { + options = options || {}; + + const directModifiedPaths = Object.keys(this.$__.activePaths.getStatePaths('modify')); + const result = new Set(); + + let i = 0; + let j = 0; + const len = directModifiedPaths.length; + + for (i = 0; i < len; ++i) { + const path = directModifiedPaths[i]; + const parts = parentPaths(path); + const pLen = parts.length; + + for (j = 0; j < pLen; ++j) { + result.add(parts[j]); + } + + if (!options.includeChildren) { + continue; + } + + let ii = 0; + let cur = this.$get(path); + if (typeof cur === 'object' && cur !== null) { + if (cur._doc) { + cur = cur._doc; + } + const len = cur.length; + if (Array.isArray(cur)) { + for (ii = 0; ii < len; ++ii) { + const subPath = path + '.' + ii; + if (!result.has(subPath)) { + result.add(subPath); + if (cur[ii] != null && cur[ii].$__) { + const modified = cur[ii].modifiedPaths(); + let iii = 0; + const iiiLen = modified.length; + for (iii = 0; iii < iiiLen; ++iii) { + result.add(subPath + '.' + modified[iii]); + } + } + } + } + } else { + const keys = Object.keys(cur); + let ii = 0; + const len = keys.length; + for (ii = 0; ii < len; ++ii) { + result.add(path + '.' + keys[ii]); + } + } + } + } + return Array.from(result); +}; + +Document.prototype[documentModifiedPaths] = Document.prototype.modifiedPaths; + +/** + * Returns true if any of the given paths is modified, else false. If no arguments, returns `true` if any path + * in this document is modified. + * + * If `path` is given, checks if a path or any full path containing `path` as part of its path chain has been modified. + * + * #### Example: + * + * doc.set('documents.0.title', 'changed'); + * doc.isModified() // true + * doc.isModified('documents') // true + * doc.isModified('documents.0.title') // true + * doc.isModified('documents otherProp') // true + * doc.isDirectModified('documents') // false + * + * @param {String} [path] optional + * @param {Object} [options] + * @param {Boolean} [options.ignoreAtomics=false] If true, doesn't return true if path is underneath an array that was modified with atomic operations like `push()` + * @return {Boolean} + * @api public + */ + +Document.prototype.isModified = function(paths, options, modifiedPaths) { + if (paths) { + const ignoreAtomics = options && options.ignoreAtomics; + const directModifiedPathsObj = this.$__.activePaths.states.modify; + if (directModifiedPathsObj == null) { + return false; + } + + if (typeof paths === 'string') { + paths = paths.indexOf(' ') === -1 ? [paths] : paths.split(' '); + } + + for (const path of paths) { + if (directModifiedPathsObj[path] != null) { + return true; + } + } + + const modified = modifiedPaths || this[documentModifiedPaths](); + const isModifiedChild = paths.some(function(path) { + return !!~modified.indexOf(path); + }); + + let directModifiedPaths = Object.keys(directModifiedPathsObj); + if (ignoreAtomics) { + directModifiedPaths = directModifiedPaths.filter(path => { + const value = this.$__getValue(path); + if (value != null && value[arrayAtomicsSymbol] != null && value[arrayAtomicsSymbol].$set === undefined) { + return false; + } + return true; + }); + } + return isModifiedChild || paths.some(function(path) { + return directModifiedPaths.some(function(mod) { + return mod === path || path.startsWith(mod + '.'); + }); + }); + } + + return this.$__.activePaths.some('modify'); +}; + +/** + * Alias of [`.isModified`](https://mongoosejs.com/docs/api/document.html#Document.prototype.isModified()) + * + * @method $isModified + * @memberOf Document + * @api public + */ + +Document.prototype.$isModified = Document.prototype.isModified; + +Document.prototype[documentIsModified] = Document.prototype.isModified; + +/** + * Checks if a path is set to its default. + * + * #### Example: + * + * MyModel = mongoose.model('test', { name: { type: String, default: 'Val '} }); + * const m = new MyModel(); + * m.$isDefault('name'); // true + * + * @memberOf Document + * @instance + * @method $isDefault + * @param {String} [path] + * @return {Boolean} + * @api public + */ + +Document.prototype.$isDefault = function(path) { + if (path == null) { + return this.$__.activePaths.some('default'); + } + + if (typeof path === 'string' && path.indexOf(' ') === -1) { + return this.$__.activePaths.getStatePaths('default').hasOwnProperty(path); + } + + let paths = path; + if (!Array.isArray(paths)) { + paths = paths.split(' '); + } + + return paths.some(path => this.$__.activePaths.getStatePaths('default').hasOwnProperty(path)); +}; + +/** + * Getter/setter, determines whether the document was removed or not. + * + * #### Example: + * + * const product = await product.remove(); + * product.$isDeleted(); // true + * product.remove(); // no-op, doesn't send anything to the db + * + * product.$isDeleted(false); + * product.$isDeleted(); // false + * product.remove(); // will execute a remove against the db + * + * + * @param {Boolean} [val] optional, overrides whether mongoose thinks the doc is deleted + * @return {Boolean|Document} whether mongoose thinks this doc is deleted. + * @method $isDeleted + * @memberOf Document + * @instance + * @api public + */ + +Document.prototype.$isDeleted = function(val) { + if (arguments.length === 0) { + return !!this.$__.isDeleted; + } + + this.$__.isDeleted = !!val; + return this; +}; + +/** + * Returns true if `path` was directly set and modified, else false. + * + * #### Example: + * + * doc.set('documents.0.title', 'changed'); + * doc.isDirectModified('documents.0.title') // true + * doc.isDirectModified('documents') // false + * + * @param {String|String[]} [path] + * @return {Boolean} + * @api public + */ + +Document.prototype.isDirectModified = function(path) { + if (path == null) { + return this.$__.activePaths.some('modify'); + } + + if (typeof path === 'string' && path.indexOf(' ') === -1) { + const res = this.$__.activePaths.getStatePaths('modify').hasOwnProperty(path); + if (res || path.indexOf('.') === -1) { + return res; + } + + const pieces = path.split('.'); + for (let i = 0; i < pieces.length - 1; ++i) { + const subpath = pieces.slice(0, i + 1).join('.'); + const subdoc = this.$get(subpath); + if (subdoc != null && subdoc.$__ != null && subdoc.isDirectModified(pieces.slice(i + 1).join('.'))) { + return true; + } + } + + return false; + } + + let paths = path; + if (typeof paths === 'string') { + paths = paths.split(' '); + } + + return paths.some(path => this.isDirectModified(path)); +}; + +/** + * Checks if `path` is in the `init` state, that is, it was set by `Document#init()` and not modified since. + * + * @param {String} [path] + * @return {Boolean} + * @api public + */ + +Document.prototype.isInit = function(path) { + if (path == null) { + return this.$__.activePaths.some('init'); + } + + if (typeof path === 'string' && path.indexOf(' ') === -1) { + return this.$__.activePaths.getStatePaths('init').hasOwnProperty(path); + } + + let paths = path; + if (!Array.isArray(paths)) { + paths = paths.split(' '); + } + + return paths.some(path => this.$__.activePaths.getStatePaths('init').hasOwnProperty(path)); +}; + +/** + * Checks if `path` was selected in the source query which initialized this document. + * + * #### Example: + * + * const doc = await Thing.findOne().select('name'); + * doc.isSelected('name') // true + * doc.isSelected('age') // false + * + * @param {String|String[]} path + * @return {Boolean} + * @api public + */ + +Document.prototype.isSelected = function isSelected(path) { + if (this.$__.selected == null) { + return true; + } + if (!path) { + return false; + } + if (path === '_id') { + return this.$__.selected._id !== 0; + } + + if (path.indexOf(' ') !== -1) { + path = path.split(' '); + } + if (Array.isArray(path)) { + return path.some(p => this.$__isSelected(p)); + } + + const paths = Object.keys(this.$__.selected); + let inclusive = null; + + if (paths.length === 1 && paths[0] === '_id') { + // only _id was selected. + return this.$__.selected._id === 0; + } + + for (const cur of paths) { + if (cur === '_id') { + continue; + } + if (!isDefiningProjection(this.$__.selected[cur])) { + continue; + } + inclusive = !!this.$__.selected[cur]; + break; + } + + if (inclusive === null) { + return true; + } + + if (path in this.$__.selected) { + return inclusive; + } + + const pathDot = path + '.'; + + for (const cur of paths) { + if (cur === '_id') { + continue; + } + + if (cur.startsWith(pathDot)) { + return inclusive || cur !== pathDot; + } + + if (pathDot.startsWith(cur + '.')) { + return inclusive; + } + } + return !inclusive; +}; + +Document.prototype.$__isSelected = Document.prototype.isSelected; + +/** + * Checks if `path` was explicitly selected. If no projection, always returns + * true. + * + * #### Example: + * + * Thing.findOne().select('nested.name').exec(function (err, doc) { + * doc.isDirectSelected('nested.name') // true + * doc.isDirectSelected('nested.otherName') // false + * doc.isDirectSelected('nested') // false + * }) + * + * @param {String} path + * @return {Boolean} + * @api public + */ + +Document.prototype.isDirectSelected = function isDirectSelected(path) { + if (this.$__.selected == null) { + return true; + } + + if (path === '_id') { + return this.$__.selected._id !== 0; + } + + if (path.indexOf(' ') !== -1) { + path = path.split(' '); + } + if (Array.isArray(path)) { + return path.some(p => this.isDirectSelected(p)); + } + + const paths = Object.keys(this.$__.selected); + let inclusive = null; + + if (paths.length === 1 && paths[0] === '_id') { + // only _id was selected. + return this.$__.selected._id === 0; + } + + for (const cur of paths) { + if (cur === '_id') { + continue; + } + if (!isDefiningProjection(this.$__.selected[cur])) { + continue; + } + inclusive = !!this.$__.selected[cur]; + break; + } + + if (inclusive === null) { + return true; + } + + if (this.$__.selected.hasOwnProperty(path)) { + return inclusive; + } + + return !inclusive; +}; + +/** + * Executes registered validation rules for this document. + * + * #### Note: + * + * This method is called `pre` save and if a validation rule is violated, [save](https://mongoosejs.com/docs/api/model.html#Model.prototype.save()) is aborted and the error is thrown. + * + * #### Example: + * + * await doc.validate({ validateModifiedOnly: false, pathsToSkip: ['name', 'email']}); + * + * @param {Array|String} [pathsToValidate] list of paths to validate. If set, Mongoose will validate only the modified paths that are in the given list. + * @param {Object} [options] internal options + * @param {Boolean} [options.validateModifiedOnly=false] if `true` mongoose validates only modified paths. + * @param {Array|string} [options.pathsToSkip] list of paths to skip. If set, Mongoose will validate every modified path that is not in this list. + * @return {Promise} Returns a Promise. + * @api public + */ + +Document.prototype.validate = async function validate(pathsToValidate, options) { + if (typeof pathsToValidate === 'function' || typeof options === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Document.prototype.validate() no longer accepts a callback'); + } + let parallelValidate; + this.$op = 'validate'; + + if (this.$isSubdocument != null) { + // Skip parallel validate check for subdocuments + } else if (this.$__.validating) { + parallelValidate = new ParallelValidateError(this, { + parentStack: options && options.parentStack, + conflictStack: this.$__.validating.stack + }); + } else { + this.$__.validating = new ParallelValidateError(this, { parentStack: options && options.parentStack }); + } + + if (arguments.length === 1) { + if (typeof arguments[0] === 'object' && !Array.isArray(arguments[0])) { + options = arguments[0]; + pathsToValidate = null; + } + } + if (options && typeof options.pathsToSkip === 'string') { + const isOnePathOnly = options.pathsToSkip.indexOf(' ') === -1; + options.pathsToSkip = isOnePathOnly ? [options.pathsToSkip] : options.pathsToSkip.split(' '); + } + + if (parallelValidate != null) { + throw parallelValidate; + } + + return new Promise((resolve, reject) => { + this.$__validate(pathsToValidate, options, (error) => { + this.$op = null; + this.$__.validating = null; + if (error != null) { + return reject(error); + } + resolve(); + }); + }); +}; + +/** + * Alias of [`.validate`](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()) + * + * @method $validate + * @memberOf Document + * @api public + */ + +Document.prototype.$validate = Document.prototype.validate; + +/*! + * ignore + */ + +function _evaluateRequiredFunctions(doc) { + const requiredFields = Object.keys(doc.$__.activePaths.getStatePaths('require')); + let i = 0; + const len = requiredFields.length; + for (i = 0; i < len; ++i) { + const path = requiredFields[i]; + + const p = doc.$__schema.path(path); + + if (p != null && typeof p.originalRequiredValue === 'function') { + doc.$__.cachedRequired = doc.$__.cachedRequired || {}; + try { + doc.$__.cachedRequired[path] = p.originalRequiredValue.call(doc, doc); + } catch (err) { + doc.invalidate(path, err); + } + } + } +} + +/*! + * ignore + */ + +function _getPathsToValidate(doc, pathsToValidate, pathsToSkip) { + const doValidateOptions = {}; + + _evaluateRequiredFunctions(doc); + // only validate required fields when necessary + let paths = new Set(Object.keys(doc.$__.activePaths.getStatePaths('require')).filter(function(path) { + if (!doc.$__isSelected(path) && !doc.$isModified(path)) { + return false; + } + if (doc.$__.cachedRequired != null && path in doc.$__.cachedRequired) { + return doc.$__.cachedRequired[path]; + } + return true; + })); + + Object.keys(doc.$__.activePaths.getStatePaths('init')).forEach(addToPaths); + Object.keys(doc.$__.activePaths.getStatePaths('modify')).forEach(addToPaths); + Object.keys(doc.$__.activePaths.getStatePaths('default')).forEach(addToPaths); + function addToPaths(p) { paths.add(p); } + + const subdocs = doc.$getAllSubdocs(); + const modifiedPaths = doc.modifiedPaths(); + for (const subdoc of subdocs) { + if (subdoc.$basePath) { + const fullPathToSubdoc = subdoc.$isSingleNested ? subdoc.$__pathRelativeToParent() : subdoc.$__fullPathWithIndexes(); + + // Remove child paths for now, because we'll be validating the whole + // subdoc. + // The following is a faster take on looping through every path in `paths` + // and checking if the path starts with `fullPathToSubdoc` re: gh-13191 + for (const modifiedPath of subdoc.modifiedPaths()) { + paths.delete(fullPathToSubdoc + '.' + modifiedPath); + } + + if (doc.$isModified(fullPathToSubdoc, null, modifiedPaths) && + !doc.isDirectModified(fullPathToSubdoc) && + !doc.$isDefault(fullPathToSubdoc)) { + paths.add(fullPathToSubdoc); + + if (doc.$__.pathsToScopes == null) { + doc.$__.pathsToScopes = {}; + } + doc.$__.pathsToScopes[fullPathToSubdoc] = subdoc.$isDocumentArrayElement ? + subdoc.__parentArray : + subdoc.$parent(); + + doValidateOptions[fullPathToSubdoc] = { skipSchemaValidators: true }; + if (subdoc.$isDocumentArrayElement && subdoc.__index != null) { + doValidateOptions[fullPathToSubdoc].index = subdoc.__index; + } + } + } + } + + for (const path of paths) { + const _pathType = doc.$__schema.path(path); + if (!_pathType) { + continue; + } + + if (_pathType.$isMongooseDocumentArray) { + for (const p of paths) { + if (p == null || p.startsWith(_pathType.path + '.')) { + paths.delete(p); + } + } + } + + // Optimization: if primitive path with no validators, or array of primitives + // with no validators, skip validating this path entirely. + if (!_pathType.caster && _pathType.validators.length === 0 && !_pathType.$parentSchemaDocArray) { + paths.delete(path); + } else if (_pathType.$isMongooseArray && + !_pathType.$isMongooseDocumentArray && // Skip document arrays... + !_pathType.$embeddedSchemaType.$isMongooseArray && // and arrays of arrays + _pathType.validators.length === 0 && // and arrays with top-level validators + _pathType.$embeddedSchemaType.validators.length === 0) { + paths.delete(path); + } + } + + for (const path of paths) { + // Single nested paths (paths embedded under single nested subdocs) will + // be validated on their own when we call `validate()` on the subdoc itself. + // Re: gh-8468 + if (doc.$__schema.singleNestedPaths.hasOwnProperty(path)) { + paths.delete(path); + continue; + } + } + + if (Array.isArray(pathsToValidate)) { + paths = _handlePathsToValidate(paths, pathsToValidate); + } else if (Array.isArray(pathsToSkip)) { + paths = _handlePathsToSkip(paths, pathsToSkip); + } + + // from here on we're not removing items from paths + + // gh-661: if a whole array is modified, make sure to run validation on all + // the children as well + _addArrayPathsToValidate(doc, paths); + + const flattenOptions = { skipArrays: true }; + for (const pathToCheck of paths) { + if (doc.$__schema.nested[pathToCheck]) { + let _v = doc.$__getValue(pathToCheck); + if (isMongooseObject(_v)) { + _v = _v.toObject({ transform: false }); + } + const flat = flatten(_v, pathToCheck, flattenOptions, doc.$__schema); + Object.keys(flat).forEach(addToPaths); + } + } + + for (const path of paths) { + const _pathType = doc.$__schema.path(path); + + if (!_pathType) { + continue; + } + + // If underneath a document array, may need to re-validate the parent + // array re: gh-6818. Do this _after_ adding subpaths, because + // we don't want to add every array subpath. + if (_pathType.$parentSchemaDocArray && typeof _pathType.$parentSchemaDocArray.path === 'string') { + paths.add(_pathType.$parentSchemaDocArray.path); + } + + if (!_pathType.$isSchemaMap) { + continue; + } + + const val = doc.$__getValue(path); + if (val == null) { + continue; + } + for (const key of val.keys()) { + paths.add(path + '.' + key); + } + } + + paths = Array.from(paths); + return [paths, doValidateOptions]; +} + +function _addArrayPathsToValidate(doc, paths) { + for (const path of paths) { + const _pathType = doc.$__schema.path(path); + if (!_pathType) { + continue; + } + + if (!_pathType.$isMongooseArray || + // To avoid potential performance issues, skip doc arrays whose children + // are not required. `getPositionalPathType()` may be slow, so avoid + // it unless we have a case of #6364 + (!Array.isArray(_pathType) && + _pathType.$isMongooseDocumentArray && + !(_pathType && _pathType.schemaOptions && _pathType.schemaOptions.required))) { + continue; + } + + // gh-11380: optimization. If the array isn't a document array and there's no validators + // on the array type, there's no need to run validation on the individual array elements. + if (_pathType.$isMongooseArray && + !_pathType.$isMongooseDocumentArray && // Skip document arrays... + !_pathType.$embeddedSchemaType.$isMongooseArray && // and arrays of arrays + _pathType.$embeddedSchemaType.validators.length === 0) { + continue; + } + + const val = doc.$__getValue(path); + _pushNestedArrayPaths(val, paths, path); + } +} + +function _pushNestedArrayPaths(val, paths, path) { + if (val != null) { + const numElements = val.length; + for (let j = 0; j < numElements; ++j) { + if (Array.isArray(val[j])) { + _pushNestedArrayPaths(val[j], paths, path + '.' + j); + } else { + paths.add(path + '.' + j); + } + } + } +} + +/*! + * ignore + */ + +Document.prototype.$__validate = function(pathsToValidate, options, callback) { + if (this.$__.saveOptions && this.$__.saveOptions.pathsToSave && !pathsToValidate) { + pathsToValidate = [...this.$__.saveOptions.pathsToSave]; + } else if (typeof pathsToValidate === 'function') { + callback = pathsToValidate; + options = null; + pathsToValidate = null; + } else if (typeof options === 'function') { + callback = options; + options = null; + } + + const hasValidateModifiedOnlyOption = options && + (typeof options === 'object') && + ('validateModifiedOnly' in options); + + const pathsToSkip = (options && options.pathsToSkip) || null; + + let shouldValidateModifiedOnly; + if (hasValidateModifiedOnlyOption) { + shouldValidateModifiedOnly = !!options.validateModifiedOnly; + } else { + shouldValidateModifiedOnly = this.$__schema.options.validateModifiedOnly; + } + + const validateAllPaths = options && options.validateAllPaths; + if (validateAllPaths) { + if (pathsToSkip) { + throw new TypeError('Cannot set both `validateAllPaths` and `pathsToSkip`'); + } + if (pathsToValidate) { + throw new TypeError('Cannot set both `validateAllPaths` and `pathsToValidate`'); + } + if (hasValidateModifiedOnlyOption && shouldValidateModifiedOnly) { + throw new TypeError('Cannot set both `validateAllPaths` and `validateModifiedOnly`'); + } + } + + const _this = this; + const _complete = () => { + let validationError = this.$__.validationError; + this.$__.validationError = null; + this.$__.validating = null; + + if (shouldValidateModifiedOnly && validationError != null) { + // Remove any validation errors that aren't from modified paths + const errors = Object.keys(validationError.errors); + for (const errPath of errors) { + if (!this.$isModified(errPath)) { + delete validationError.errors[errPath]; + } + } + if (Object.keys(validationError.errors).length === 0) { + validationError = void 0; + } + } + + this.$__.cachedRequired = {}; + this.$emit('validate', _this); + this.constructor.emit('validate', _this); + + if (validationError) { + for (const key in validationError.errors) { + // Make sure cast errors persist + if (!this[documentArrayParent] && + validationError.errors[key] instanceof MongooseError.CastError) { + this.invalidate(key, validationError.errors[key]); + } + } + + return validationError; + } + }; + + // only validate required fields when necessary + let paths; + let doValidateOptionsByPath; + if (validateAllPaths) { + paths = new Set(Object.keys(this.$__schema.paths)); + // gh-661: if a whole array is modified, make sure to run validation on all + // the children as well + for (const path of paths) { + const schemaType = this.$__schema.path(path); + if (!schemaType || !schemaType.$isMongooseArray) { + continue; + } + const val = this.$__getValue(path); + if (!val) { + continue; + } + _pushNestedArrayPaths(val, paths, path); + } + paths = [...paths]; + doValidateOptionsByPath = {}; + } else { + const pathDetails = _getPathsToValidate(this, pathsToValidate, pathsToSkip); + paths = shouldValidateModifiedOnly ? + pathDetails[0].filter((path) => this.$isModified(path)) : + pathDetails[0]; + doValidateOptionsByPath = pathDetails[1]; + } + + if (typeof pathsToValidate === 'string') { + pathsToValidate = pathsToValidate.split(' '); + } + + if (paths.length === 0) { + return immediate(function() { + const error = _complete(); + if (error) { + return _this.$__schema.s.hooks.execPost('validate:error', _this, [_this], { error: error }, function(error) { + callback(error); + }); + } + callback(null, _this); + }); + } + + const validated = {}; + let total = 0; + + let pathsToSave = this.$__.saveOptions?.pathsToSave; + if (Array.isArray(pathsToSave)) { + pathsToSave = new Set(pathsToSave); + for (const path of paths) { + if (!pathsToSave.has(path)) { + continue; + } + validatePath(path); + } + } else { + for (const path of paths) { + validatePath(path); + } + } + + function validatePath(path) { + if (path == null || validated[path]) { + return; + } + + validated[path] = true; + total++; + + immediate(function() { + const schemaType = _this.$__schema.path(path); + + if (!schemaType) { + return --total || complete(); + } + + // If user marked as invalid or there was a cast error, don't validate + if (!_this.$isValid(path)) { + --total || complete(); + return; + } + + // If setting a path under a mixed path, avoid using the mixed path validator (gh-10141) + if (schemaType[schemaMixedSymbol] != null && path !== schemaType.path) { + return --total || complete(); + } + + let val = _this.$__getValue(path); + + // If you `populate()` and get back a null value, required validators + // shouldn't fail (gh-8018). We should always fall back to the populated + // value. + let pop; + if ((pop = _this.$populated(path))) { + val = pop; + } else if (val != null && val.$__ != null && val.$__.wasPopulated) { + // Array paths, like `somearray.1`, do not show up as populated with `$populated()`, + // so in that case pull out the document's id + val = val._id; + } + const scope = _this.$__.pathsToScopes != null && path in _this.$__.pathsToScopes ? + _this.$__.pathsToScopes[path] : + _this; + + const doValidateOptions = { + ...doValidateOptionsByPath[path], + path: path, + validateAllPaths + }; + + schemaType.doValidate(val, function(err) { + if (err) { + const isSubdoc = schemaType.$isSingleNested || + schemaType.$isArraySubdocument || + schemaType.$isMongooseDocumentArray; + if (isSubdoc && err instanceof ValidationError) { + return --total || complete(); + } + _this.invalidate(path, err, undefined, true); + } + --total || complete(); + }, scope, doValidateOptions); + }); + } + + function complete() { + const error = _complete(); + if (error) { + return _this.$__schema.s.hooks.execPost('validate:error', _this, [_this], { error: error }, function(error) { + callback(error); + }); + } + callback(null, _this); + } + +}; + +/*! + * ignore + */ + +function _handlePathsToValidate(paths, pathsToValidate) { + const _pathsToValidate = new Set(pathsToValidate); + const parentPaths = new Map([]); + for (const path of pathsToValidate) { + if (path.indexOf('.') === -1) { + continue; + } + const pieces = path.split('.'); + let cur = pieces[0]; + for (let i = 1; i < pieces.length; ++i) { + // Since we skip subpaths under single nested subdocs to + // avoid double validation, we need to add back the + // single nested subpath if the user asked for it (gh-8626) + parentPaths.set(cur, path); + cur = cur + '.' + pieces[i]; + } + } + + const ret = new Set(); + for (const path of paths) { + if (_pathsToValidate.has(path)) { + ret.add(path); + } else if (parentPaths.has(path)) { + ret.add(parentPaths.get(path)); + } + } + return ret; +} + +/*! + * ignore + */ + +function _handlePathsToSkip(paths, pathsToSkip) { + pathsToSkip = new Set(pathsToSkip); + paths = Array.from(paths).filter(p => !pathsToSkip.has(p)); + return new Set(paths); +} + +/** + * Executes registered validation rules (skipping asynchronous validators) for this document. + * + * #### Note: + * + * This method is useful if you need synchronous validation. + * + * #### Example: + * + * const err = doc.validateSync(); + * if (err) { + * handleError(err); + * } else { + * // validation passed + * } + * + * @param {Array|string} [pathsToValidate] only validate the given paths + * @param {Object} [options] options for validation + * @param {Boolean} [options.validateModifiedOnly=false] If `true`, Mongoose will only validate modified paths, as opposed to modified paths and `required` paths. + * @param {Array|string} [options.pathsToSkip] list of paths to skip. If set, Mongoose will validate every modified path that is not in this list. + * @return {ValidationError|undefined} ValidationError if there are errors during validation, or undefined if there is no error. + * @api public + */ + +Document.prototype.validateSync = function(pathsToValidate, options) { + const _this = this; + + if (arguments.length === 1 && typeof arguments[0] === 'object' && !Array.isArray(arguments[0])) { + options = arguments[0]; + pathsToValidate = null; + } + + const hasValidateModifiedOnlyOption = options && + (typeof options === 'object') && + ('validateModifiedOnly' in options); + + let shouldValidateModifiedOnly; + if (hasValidateModifiedOnlyOption) { + shouldValidateModifiedOnly = !!options.validateModifiedOnly; + } else { + shouldValidateModifiedOnly = this.$__schema.options.validateModifiedOnly; + } + + let pathsToSkip = options && options.pathsToSkip; + + const validateAllPaths = options && options.validateAllPaths; + if (validateAllPaths) { + if (pathsToSkip) { + throw new TypeError('Cannot set both `validateAllPaths` and `pathsToSkip`'); + } + if (pathsToValidate) { + throw new TypeError('Cannot set both `validateAllPaths` and `pathsToValidate`'); + } + } + + if (typeof pathsToValidate === 'string') { + const isOnePathOnly = pathsToValidate.indexOf(' ') === -1; + pathsToValidate = isOnePathOnly ? [pathsToValidate] : pathsToValidate.split(' '); + } else if (typeof pathsToSkip === 'string' && pathsToSkip.indexOf(' ') !== -1) { + pathsToSkip = pathsToSkip.split(' '); + } + + // only validate required fields when necessary + let paths; + let skipSchemaValidators; + if (validateAllPaths) { + paths = new Set(Object.keys(this.$__schema.paths)); + // gh-661: if a whole array is modified, make sure to run validation on all + // the children as well + for (const path of paths) { + const schemaType = this.$__schema.path(path); + if (!schemaType || !schemaType.$isMongooseArray) { + continue; + } + const val = this.$__getValue(path); + if (!val) { + continue; + } + _pushNestedArrayPaths(val, paths, path); + } + paths = [...paths]; + skipSchemaValidators = {}; + } else { + const pathDetails = _getPathsToValidate(this, pathsToValidate, pathsToSkip); + paths = shouldValidateModifiedOnly ? + pathDetails[0].filter((path) => this.$isModified(path)) : + pathDetails[0]; + skipSchemaValidators = pathDetails[1]; + } + + const validating = {}; + + for (let i = 0, len = paths.length; i < len; ++i) { + const path = paths[i]; + + if (validating[path]) { + continue; + } + + validating[path] = true; + + const p = _this.$__schema.path(path); + if (!p) { + continue; + } + if (!_this.$isValid(path)) { + continue; + } + + const val = _this.$__getValue(path); + const err = p.doValidateSync(val, _this, { + skipSchemaValidators: skipSchemaValidators[path], + path: path, + validateModifiedOnly: shouldValidateModifiedOnly, + validateAllPaths + }); + if (err) { + const isSubdoc = p.$isSingleNested || + p.$isArraySubdocument || + p.$isMongooseDocumentArray; + if (isSubdoc && err instanceof ValidationError) { + continue; + } + _this.invalidate(path, err, undefined, true); + } + } + + const err = _this.$__.validationError; + _this.$__.validationError = undefined; + _this.$emit('validate', _this); + _this.constructor.emit('validate', _this); + + if (err) { + for (const key in err.errors) { + // Make sure cast errors persist + if (err.errors[key] instanceof MongooseError.CastError) { + _this.invalidate(key, err.errors[key]); + } + } + } + + return err; +}; + +/** + * Marks a path as invalid, causing validation to fail. + * + * The `errorMsg` argument will become the message of the `ValidationError`. + * + * The `value` argument (if passed) will be available through the `ValidationError.value` property. + * + * doc.invalidate('size', 'must be less than 20', 14); + * + * doc.validate(function (err) { + * console.log(err) + * // prints + * { message: 'Validation failed', + * name: 'ValidationError', + * errors: + * { size: + * { message: 'must be less than 20', + * name: 'ValidatorError', + * path: 'size', + * type: 'user defined', + * value: 14 } } } + * }) + * + * @param {String} path the field to invalidate. For array elements, use the `array.i.field` syntax, where `i` is the 0-based index in the array. + * @param {String|Error} err the error which states the reason `path` was invalid + * @param {Object|String|Number|any} val optional invalid value + * @param {String} [kind] optional `kind` property for the error + * @return {ValidationError} the current ValidationError, with all currently invalidated paths + * @api public + */ + +Document.prototype.invalidate = function(path, err, val, kind) { + if (!this.$__.validationError) { + this.$__.validationError = new ValidationError(this); + } + + if (this.$__.validationError.errors[path]) { + return; + } + + if (!err || typeof err === 'string') { + err = new ValidatorError({ + path: path, + message: err, + type: kind || 'user defined', + value: val + }); + } + + if (this.$__.validationError === err) { + return this.$__.validationError; + } + + this.$__.validationError.addError(path, err); + return this.$__.validationError; +}; + +/** + * Marks a path as valid, removing existing validation errors. + * + * @param {String} path the field to mark as valid + * @api public + * @memberOf Document + * @instance + * @method $markValid + */ + +Document.prototype.$markValid = function(path) { + if (!this.$__.validationError || !this.$__.validationError.errors[path]) { + return; + } + + delete this.$__.validationError.errors[path]; + if (Object.keys(this.$__.validationError.errors).length === 0) { + this.$__.validationError = null; + } +}; + +/*! + * ignore + */ + +function _markValidSubpaths(doc, path) { + if (!doc.$__.validationError) { + return; + } + + const keys = Object.keys(doc.$__.validationError.errors); + for (const key of keys) { + if (key.startsWith(path + '.')) { + delete doc.$__.validationError.errors[key]; + } + } + if (Object.keys(doc.$__.validationError.errors).length === 0) { + doc.$__.validationError = null; + } +} + +/*! + * ignore + */ + +function _checkImmutableSubpaths(subdoc, schematype, priorVal) { + const schema = schematype.schema; + if (schema == null) { + return; + } + + for (const key of Object.keys(schema.paths)) { + const path = schema.paths[key]; + if (path.$immutableSetter == null) { + continue; + } + const oldVal = priorVal == null ? void 0 : priorVal.$__getValue(key); + // Calling immutableSetter with `oldVal` even though it expects `newVal` + // is intentional. That's because `$immutableSetter` compares its param + // to the current value. + path.$immutableSetter.call(subdoc, oldVal); + } +} + +/** + * Saves this document by inserting a new document into the database if [document.isNew](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()) is `true`, + * or sends an [updateOne](https://mongoosejs.com/docs/api/document.html#Document.prototype.updateOne()) operation **only** with the modifications to the database, it does not replace the whole document in the latter case. + * + * #### Example: + * + * product.sold = Date.now(); + * product = await product.save(); + * + * If save is successful, the returned promise will fulfill with the document + * saved. + * + * #### Example: + * + * const newProduct = await product.save(); + * newProduct === product; // true + * + * @param {Object} [options] options optional options + * @param {Session} [options.session=null] the [session](https://www.mongodb.com/docs/manual/reference/server-sessions/) associated with this save operation. If not specified, defaults to the [document's associated session](https://mongoosejs.com/docs/api/document.html#Document.prototype.$session()). + * @param {Object} [options.safe] (DEPRECATED) overrides [schema's safe option](https://mongoosejs.com/docs/guide.html#safe). Use the `w` option instead. + * @param {Boolean} [options.validateBeforeSave] set to false to save without validating. + * @param {Boolean} [options.validateModifiedOnly=false] If `true`, Mongoose will only validate modified paths, as opposed to modified paths and `required` paths. + * @param {Number|String} [options.w] set the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#w-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.j] set to true for MongoDB to wait until this `save()` has been [journaled before resolving the returned promise](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Number} [options.wtimeout] sets a [timeout for the write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern). + * @param {Boolean} [options.checkKeys=true] the MongoDB driver prevents you from saving keys that start with '$' or contain '.' by default. Set this option to `false` to skip that check. See [restrictions on field names](https://www.mongodb.com/docs/manual/reference/limits/#Restrictions-on-Field-Names) + * @param {Boolean} [options.timestamps=true] if `false` and [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this `save()`. + * @param {Function} [fn] optional callback + * @method save + * @memberOf Document + * @instance + * @throws {DocumentNotFoundError} if this [save updates an existing document](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()) but the document doesn't exist in the database. For example, you will get this error if the document is [deleted between when you retrieved the document and when you saved it](documents.html#updating). + * @return {Promise|undefined} Returns undefined if used with callback or a Promise otherwise. + * @api public + * @see middleware https://mongoosejs.com/docs/middleware.html + */ + +/** + * Checks if a path is invalid + * + * @param {String|String[]} [path] the field to check. If unset will always return "false" + * @method $isValid + * @memberOf Document + * @instance + * @api private + */ + +Document.prototype.$isValid = function(path) { + if (this.$__.validationError == null || Object.keys(this.$__.validationError.errors).length === 0) { + return true; + } + if (path == null) { + return false; + } + + if (path.indexOf(' ') !== -1) { + path = path.split(' '); + } + if (Array.isArray(path)) { + return path.some(p => this.$__.validationError.errors[p] == null); + } + + return this.$__.validationError.errors[path] == null; +}; + +/** + * Resets the internal modified state of this document. + * + * @api private + * @return {Document} this + * @method $__reset + * @memberOf Document + * @instance + */ + +Document.prototype.$__reset = function reset() { + let _this = this; + + // Skip for subdocuments + const subdocs = this.$parent() === this ? this.$getAllSubdocs() : []; + const resetArrays = new Set(); + for (const subdoc of subdocs) { + const fullPathWithIndexes = subdoc.$__fullPathWithIndexes(); + subdoc.$__reset(); + if (this.isModified(fullPathWithIndexes) || isParentInit(fullPathWithIndexes)) { + if (subdoc.$isDocumentArrayElement) { + resetArrays.add(subdoc.parentArray()); + } else { + const parent = subdoc.$parent(); + if (parent === this) { + this.$__.activePaths.clearPath(subdoc.$basePath); + } else if (parent != null && parent.$isSubdocument) { + // If map path underneath subdocument, may end up with a case where + // map path is modified but parent still needs to be reset. See gh-10295 + parent.$__reset(); + } + } + } + } + + for (const array of resetArrays) { + this.$__.activePaths.clearPath(array.$path()); + array[arrayAtomicsBackupSymbol] = array[arrayAtomicsSymbol]; + array[arrayAtomicsSymbol] = {}; + } + + function isParentInit(path) { + path = path.indexOf('.') === -1 ? [path] : path.split('.'); + let cur = ''; + for (let i = 0; i < path.length; ++i) { + cur += (cur.length ? '.' : '') + path[i]; + if (_this.$__.activePaths[cur] === 'init') { + return true; + } + } + + return false; + } + + // clear atomics + this.$__dirty().forEach(function(dirt) { + const type = dirt.value; + + if (type && type[arrayAtomicsSymbol]) { + type[arrayAtomicsBackupSymbol] = type[arrayAtomicsSymbol]; + type[arrayAtomicsSymbol] = {}; + } + }); + + this.$__.backup = {}; + this.$__.backup.activePaths = { + modify: Object.assign({}, this.$__.activePaths.getStatePaths('modify')), + default: Object.assign({}, this.$__.activePaths.getStatePaths('default')) + }; + this.$__.backup.validationError = this.$__.validationError; + this.$__.backup.errors = this.$errors; + + // Clear 'dirty' cache + this.$__.activePaths.clear('modify'); + this.$__.activePaths.clear('default'); + this.$__.validationError = undefined; + this.$errors = undefined; + _this = this; + this.$__schema.requiredPaths().forEach(function(path) { + _this.$__.activePaths.require(path); + }); + + return this; +}; + +/*! + * ignore + */ + +Document.prototype.$__undoReset = function $__undoReset() { + if (this.$__.backup == null || this.$__.backup.activePaths == null) { + return; + } + + this.$__.activePaths.states.modify = this.$__.backup.activePaths.modify; + this.$__.activePaths.states.default = this.$__.backup.activePaths.default; + + this.$__.validationError = this.$__.backup.validationError; + this.$errors = this.$__.backup.errors; + + for (const dirt of this.$__dirty()) { + const type = dirt.value; + + if (type && type[arrayAtomicsSymbol] && type[arrayAtomicsBackupSymbol]) { + type[arrayAtomicsSymbol] = type[arrayAtomicsBackupSymbol]; + } + } + + for (const subdoc of this.$getAllSubdocs()) { + subdoc.$__undoReset(); + } +}; + +/** + * Returns this documents dirty paths / vals. + * + * @return {Array} + * @api private + * @method $__dirty + * @memberOf Document + * @instance + */ + +Document.prototype.$__dirty = function() { + const _this = this; + let all = this.$__.activePaths.map('modify', function(path) { + return { + path: path, + value: _this.$__getValue(path), + schema: _this.$__path(path) + }; + }); + + // gh-2558: if we had to set a default and the value is not undefined, + // we have to save as well + all = all.concat(this.$__.activePaths.map('default', function(path) { + if (path === '_id' || _this.$__getValue(path) == null) { + return; + } + return { + path: path, + value: _this.$__getValue(path), + schema: _this.$__path(path) + }; + })); + + const allPaths = new Map(all.filter((el) => el != null).map((el) => [el.path, el.value])); + // Ignore "foo.a" if "foo" is dirty already. + const minimal = []; + + all.forEach(function(item) { + if (!item) { + return; + } + + let top = null; + + const array = parentPaths(item.path); + for (let i = 0; i < array.length - 1; i++) { + if (allPaths.has(array[i])) { + top = allPaths.get(array[i]); + break; + } + } + if (top == null) { + minimal.push(item); + } else if (top != null && + top[arrayAtomicsSymbol] != null && + top.hasAtomics()) { + // special case for top level MongooseArrays + // the `top` array itself and a sub path of `top` are being set. + // the only way to honor all of both modifications is through a $set + // of entire array. + top[arrayAtomicsSymbol] = {}; + top[arrayAtomicsSymbol].$set = top; + } + }); + return minimal; +}; + +/** + * Assigns/compiles `schema` into this documents prototype. + * + * @param {Schema} schema + * @api private + * @method $__setSchema + * @memberOf Document + * @instance + */ + +Document.prototype.$__setSchema = function(schema) { + compile(schema.tree, this, undefined, schema.options); + + // Apply default getters if virtual doesn't have any (gh-6262) + for (const key of Object.keys(schema.virtuals)) { + schema.virtuals[key]._applyDefaultGetters(); + } + if (schema.path('schema') == null) { + this.schema = schema; + } + this.$__schema = schema; + this[documentSchemaSymbol] = schema; +}; + + +/** + * Get active path that were changed and are arrays + * + * @return {Array} + * @api private + * @method $__getArrayPathsToValidate + * @memberOf Document + * @instance + */ + +Document.prototype.$__getArrayPathsToValidate = function() { + DocumentArray || (DocumentArray = require('./types/documentArray')); + + // validate all document arrays. + return this.$__.activePaths + .map('init', 'modify', function(i) { + return this.$__getValue(i); + }.bind(this)) + .filter(function(val) { + return val && Array.isArray(val) && utils.isMongooseDocumentArray(val) && val.length; + }).reduce(function(seed, array) { + return seed.concat(array); + }, []) + .filter(function(doc) { + return doc; + }); +}; + + +/** + * Get all subdocs (by bfs) + * + * @return {Array} + * @api public + * @method $getAllSubdocs + * @memberOf Document + * @instance + */ + +Document.prototype.$getAllSubdocs = function() { + DocumentArray || (DocumentArray = require('./types/documentArray')); + Embedded = Embedded || require('./types/arraySubdocument'); + + function docReducer(doc, seed, path) { + let val = doc; + let isNested = false; + if (path) { + if (doc instanceof Document && doc[documentSchemaSymbol].paths[path]) { + val = doc._doc[path]; + } else if (doc instanceof Document && doc[documentSchemaSymbol].nested[path]) { + val = doc._doc[path]; + isNested = true; + } else { + val = doc[path]; + } + } + if (val instanceof Embedded) { + seed.push(val); + } else if (val instanceof Map) { + seed = Array.from(val.keys()).reduce(function(seed, path) { + return docReducer(val.get(path), seed, null); + }, seed); + } else if (val && !Array.isArray(val) && val.$isSingleNested) { + seed = Object.keys(val._doc).reduce(function(seed, path) { + return docReducer(val, seed, path); + }, seed); + seed.push(val); + } else if (val && utils.isMongooseDocumentArray(val)) { + val.forEach(function _docReduce(doc) { + if (!doc || !doc._doc) { + return; + } + seed = Object.keys(doc._doc).reduce(function(seed, path) { + return docReducer(doc._doc, seed, path); + }, seed); + if (doc instanceof Embedded) { + seed.push(doc); + } + }); + } else if (isNested && val != null) { + for (const path of Object.keys(val)) { + docReducer(val, seed, path); + } + } + return seed; + } + + const subDocs = []; + for (const path of Object.keys(this._doc)) { + docReducer(this, subDocs, path); + } + + return subDocs; +}; + +/*! + * Runs queued functions + */ + +function applyQueue(doc) { + const q = doc.$__schema && doc.$__schema.callQueue; + if (!q.length) { + return; + } + + for (const pair of q) { + if (pair[0] !== 'pre' && pair[0] !== 'post' && pair[0] !== 'on') { + doc[pair[0]].apply(doc, pair[1]); + } + } +} + +/*! + * ignore + */ + +Document.prototype.$__handleReject = function handleReject(err) { + // emit on the Model if listening + if (this.$listeners('error').length) { + this.$emit('error', err); + } else if (this.constructor.listeners && this.constructor.listeners('error').length) { + this.constructor.emit('error', err); + } +}; + +/** + * Internal helper for toObject() and toJSON() that doesn't manipulate options + * + * @return {Object} + * @api private + * @method $toObject + * @memberOf Document + * @instance + */ + +Document.prototype.$toObject = function(options, json) { + const path = json ? 'toJSON' : 'toObject'; + const baseOptions = this.constructor && + this.constructor.base && + this.constructor.base.options && + get(this.constructor.base.options, path) || {}; + const schemaOptions = this.$__schema && this.$__schema.options || {}; + // merge base default options with Schema's set default options if available. + // `clone` is necessary here because `utils.options` directly modifies the second input. + const defaultOptions = Object.assign({}, baseOptions, schemaOptions[path]); + + // If options do not exist or is not an object, set it to empty object + options = utils.isPOJO(options) ? { ...options } : {}; + options._calledWithOptions = options._calledWithOptions || { ...options }; + + let _minimize; + if (options._calledWithOptions.minimize != null) { + _minimize = options.minimize; + } else if (defaultOptions.minimize != null) { + _minimize = defaultOptions.minimize; + } else { + _minimize = schemaOptions.minimize; + } + + options.minimize = _minimize; + options._seen = options._seen || new Map(); + + const depopulate = options._calledWithOptions.depopulate + ?? options._parentOptions?.depopulate + ?? defaultOptions.depopulate + ?? false; + // _isNested will only be true if this is not the top level document, we + // should never depopulate the top-level document + if (depopulate && options._isNested && this.$__.wasPopulated) { + return clone(this.$__.wasPopulated.value || this._id, options); + } + + // merge default options with input options. + for (const key of Object.keys(defaultOptions)) { + if (options[key] == null) { + options[key] = defaultOptions[key]; + } + } + options._isNested = true; + options.json = json; + options.minimize = _minimize; + + options._parentOptions = options; + + options._skipSingleNestedGetters = false; + // remember the root transform function + // to save it from being overwritten by sub-transform functions + // const originalTransform = options.transform; + + let ret = clone(this._doc, options) || {}; + + options._skipSingleNestedGetters = true; + const getters = options._calledWithOptions.getters + ?? options.getters + ?? defaultOptions.getters + ?? false; + if (getters) { + applyGetters(this, ret, options); + + if (options.minimize) { + ret = minimize(ret) || {}; + } + } + + const virtuals = options._calledWithOptions.virtuals + ?? defaultOptions.virtuals + ?? undefined; + + if (virtuals || (getters && virtuals !== false)) { + applyVirtuals(this, ret, options, options); + } + + if (options.versionKey === false && this.$__schema.options.versionKey) { + delete ret[this.$__schema.options.versionKey]; + } + + const transform = options._calledWithOptions.transform ?? true; + let transformFunction = undefined; + if (transform === true) { + transformFunction = defaultOptions.transform; + } else if (typeof transform === 'function') { + transformFunction = transform; + } + + // In the case where a subdocument has its own transform function, we need to + // check and see if the parent has a transform (options.transform) and if the + // child schema has a transform (this.schema.options.toObject) In this case, + // we need to adjust options.transform to be the child schema's transform and + // not the parent schema's + if (transform) { + applySchemaTypeTransforms(this, ret); + } + + if (options.useProjection) { + omitDeselectedFields(this, ret); + } + + if (typeof transformFunction === 'function') { + const xformed = transformFunction(this, ret, options); + if (typeof xformed !== 'undefined') { + ret = xformed; + } + } + + return ret; +}; + +/** + * Converts this document into a plain-old JavaScript object ([POJO](https://masteringjs.io/tutorials/fundamentals/pojo)). + * + * Buffers are converted to instances of [mongodb.Binary](https://mongodb.github.io/node-mongodb-native/4.9/classes/Binary.html) for proper storage. + * + * #### Getters/Virtuals + * + * Example of only applying path getters + * + * doc.toObject({ getters: true, virtuals: false }) + * + * Example of only applying virtual getters + * + * doc.toObject({ virtuals: true }) + * + * Example of applying both path and virtual getters + * + * doc.toObject({ getters: true }) + * + * To apply these options to every document of your schema by default, set your [schemas](https://mongoosejs.com/docs/api/schema.html#Schema()) `toObject` option to the same argument. + * + * schema.set('toObject', { virtuals: true }) + * + * #### Transform: + * + * We may need to perform a transformation of the resulting object based on some criteria, say to remove some sensitive information or return a custom object. In this case we set the optional `transform` function. + * + * Transform functions receive three arguments + * + * function (doc, ret, options) {} + * + * - `doc` The mongoose document which is being converted + * - `ret` The plain object representation which has been converted + * - `options` The options in use (either schema options or the options passed inline) + * + * #### Example: + * + * // specify the transform schema option + * if (!schema.options.toObject) schema.options.toObject = {}; + * schema.options.toObject.transform = function (doc, ret, options) { + * // remove the _id of every document before returning the result + * delete ret._id; + * return ret; + * } + * + * // without the transformation in the schema + * doc.toObject(); // { _id: 'anId', name: 'Wreck-it Ralph' } + * + * // with the transformation + * doc.toObject(); // { name: 'Wreck-it Ralph' } + * + * With transformations we can do a lot more than remove properties. We can even return completely new customized objects: + * + * if (!schema.options.toObject) schema.options.toObject = {}; + * schema.options.toObject.transform = function (doc, ret, options) { + * return { movie: ret.name } + * } + * + * // without the transformation in the schema + * doc.toObject(); // { _id: 'anId', name: 'Wreck-it Ralph' } + * + * // with the transformation + * doc.toObject(); // { movie: 'Wreck-it Ralph' } + * + * _Note: if a transform function returns `undefined`, the return value will be ignored._ + * + * Transformations may also be applied inline, overridding any transform set in the schema options. + * Any transform function specified in `toObject` options also propagates to any subdocuments. + * + * function deleteId(doc, ret, options) { + * delete ret._id; + * return ret; + * } + * + * const schema = mongoose.Schema({ name: String, docArr: [{ name: String }] }); + * const TestModel = mongoose.model('Test', schema); + * + * const doc = new TestModel({ name: 'test', docArr: [{ name: 'test' }] }); + * + * // pass the transform as an inline option. Deletes `_id` property + * // from both the top-level document and the subdocument. + * const obj = doc.toObject({ transform: deleteId }); + * obj._id; // undefined + * obj.docArr[0]._id; // undefined + * + * If you want to skip transformations, use `transform: false`: + * + * schema.options.toObject.hide = '_id'; + * schema.options.toObject.transform = function (doc, ret, options) { + * if (options.hide) { + * options.hide.split(' ').forEach(function (prop) { + * delete ret[prop]; + * }); + * } + * return ret; + * } + * + * const doc = new Doc({ _id: 'anId', secret: 47, name: 'Wreck-it Ralph' }); + * doc.toObject(); // { secret: 47, name: 'Wreck-it Ralph' } + * doc.toObject({ hide: 'secret _id', transform: false });// { _id: 'anId', secret: 47, name: 'Wreck-it Ralph' } + * doc.toObject({ hide: 'secret _id', transform: true }); // { name: 'Wreck-it Ralph' } + * + * If you pass a transform in `toObject()` options, Mongoose will apply the transform + * to [subdocuments](https://mongoosejs.com/docs/subdocs.html) in addition to the top-level document. + * Similarly, `transform: false` skips transforms for all subdocuments. + * Note that this behavior is different for transforms defined in the schema: + * if you define a transform in `schema.options.toObject.transform`, that transform + * will **not** apply to subdocuments. + * + * const memberSchema = new Schema({ name: String, email: String }); + * const groupSchema = new Schema({ members: [memberSchema], name: String, email }); + * const Group = mongoose.model('Group', groupSchema); + * + * const doc = new Group({ + * name: 'Engineering', + * email: 'dev@mongoosejs.io', + * members: [{ name: 'Val', email: 'val@mongoosejs.io' }] + * }); + * + * // Removes `email` from both top-level document **and** array elements + * // { name: 'Engineering', members: [{ name: 'Val' }] } + * doc.toObject({ transform: (doc, ret) => { delete ret.email; return ret; } }); + * + * Transforms, like all of these options, are also available for `toJSON`. See [this guide to `JSON.stringify()`](https://thecodebarbarian.com/the-80-20-guide-to-json-stringify-in-javascript.html) to learn why `toJSON()` and `toObject()` are separate functions. + * + * See [schema options](https://mongoosejs.com/docs/guide.html#toObject) for some more details. + * + * _During save, no custom options are applied to the document before being sent to the database._ + * + * @param {Object} [options] + * @param {Boolean} [options.getters=false] if true, apply all getters, including virtuals + * @param {Boolean|Object} [options.virtuals=false] if true, apply virtuals, including aliases. Use `{ getters: true, virtuals: false }` to just apply getters, not virtuals. An object of the form `{ pathsToSkip: ['someVirtual'] }` may also be used to omit specific virtuals. + * @param {Boolean} [options.aliases=true] if `options.virtuals = true`, you can set `options.aliases = false` to skip applying aliases. This option is a no-op if `options.virtuals = false`. + * @param {Boolean} [options.minimize=true] if true, omit any empty objects from the output + * @param {Function|null} [options.transform=null] if set, mongoose will call this function to allow you to transform the returned object + * @param {Boolean} [options.depopulate=false] if true, replace any conventionally populated paths with the original id in the output. Has no affect on virtual populated paths. + * @param {Boolean} [options.versionKey=true] if false, exclude the version key (`__v` by default) from the output + * @param {Boolean} [options.flattenMaps=false] if true, convert Maps to POJOs. Useful if you want to `JSON.stringify()` the result of `toObject()`. + * @param {Boolean} [options.flattenObjectIds=false] if true, convert any ObjectIds in the result to 24 character hex strings. + * @param {Boolean} [options.useProjection=false] - If true, omits fields that are excluded in this document's projection. Unless you specified a projection, this will omit any field that has `select: false` in the schema. + * @return {Object} js object (not a POJO) + * @see mongodb.Binary https://mongodb.github.io/node-mongodb-native/4.9/classes/Binary.html + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.toObject = function(options) { + return this.$toObject(options); +}; + +/*! + * Applies virtuals properties to `json`. + */ + +function applyVirtuals(self, json, options, toObjectOptions) { + const schema = self.$__schema; + const virtuals = schema.virtuals; + const paths = Object.keys(virtuals); + let i = paths.length; + const numPaths = i; + let path; + let assignPath; + let cur = self._doc; + let v; + const aliases = typeof (toObjectOptions && toObjectOptions.aliases) === 'boolean' + ? toObjectOptions.aliases + : true; + + options = options || {}; + let virtualsToApply = null; + if (Array.isArray(options.virtuals)) { + virtualsToApply = new Set(options.virtuals); + } else if (options.virtuals && options.virtuals.pathsToSkip) { + virtualsToApply = new Set(paths); + for (let i = 0; i < options.virtuals.pathsToSkip.length; i++) { + if (virtualsToApply.has(options.virtuals.pathsToSkip[i])) { + virtualsToApply.delete(options.virtuals.pathsToSkip[i]); + } + } + } + + if (!cur) { + return json; + } + + for (i = 0; i < numPaths; ++i) { + path = paths[i]; + + if (virtualsToApply != null && !virtualsToApply.has(path)) { + continue; + } + + // Allow skipping aliases with `toObject({ virtuals: true, aliases: false })` + if (!aliases && schema.aliases.hasOwnProperty(path)) { + continue; + } + + // We may be applying virtuals to a nested object, for example if calling + // `doc.nestedProp.toJSON()`. If so, the path we assign to, `assignPath`, + // will be a trailing substring of the `path`. + assignPath = path; + if (options.path != null) { + if (!path.startsWith(options.path + '.')) { + continue; + } + assignPath = path.substring(options.path.length + 1); + } + if (assignPath.indexOf('.') === -1 && assignPath === path) { + v = virtuals[path].applyGetters(void 0, self); + v = clone(v, options); + if (v === void 0) { + continue; + } + json[assignPath] = v; + continue; + } + const parts = assignPath.split('.'); + v = clone(self.get(path), options); + if (v === void 0) { + continue; + } + const plen = parts.length; + cur = json; + for (let j = 0; j < plen - 1; ++j) { + cur[parts[j]] = cur[parts[j]] || {}; + cur = cur[parts[j]]; + } + cur[parts[plen - 1]] = v; + } + + return json; +} + + +/** + * Applies virtuals properties to `json`. + * + * @param {Document} self + * @param {Object} json + * @param {Object} [options] + * @return {Object} `json` + * @api private + */ + +function applyGetters(self, json, options) { + const schema = self.$__schema; + const paths = Object.keys(schema.paths); + let i = paths.length; + let path; + let cur = self._doc; + let v; + + if (!cur) { + return json; + } + + while (i--) { + path = paths[i]; + + const parts = path.split('.'); + + const plen = parts.length; + const last = plen - 1; + let branch = json; + let part; + cur = self._doc; + + if (!self.$__isSelected(path)) { + continue; + } + + for (let ii = 0; ii < plen; ++ii) { + part = parts[ii]; + v = cur[part]; + // If we've reached a non-object part of the branch, continuing would + // cause "Cannot create property 'foo' on string 'bar'" error. + // Necessary for mongoose-intl plugin re: gh-14446 + if (branch != null && typeof branch !== 'object') { + break; + } else if (ii === last) { + const val = self.$get(path); + branch[part] = clone(val, options); + if (Array.isArray(branch[part]) && schema.paths[path].$embeddedSchemaType) { + for (let i = 0; i < branch[part].length; ++i) { + branch[part][i] = schema.paths[path].$embeddedSchemaType.applyGetters( + branch[part][i], + self + ); + } + } + } else if (v == null) { + if (part in cur) { + branch[part] = v; + } + break; + } else { + branch = branch[part] || (branch[part] = {}); + } + cur = v; + } + } + + return json; +} + +/** + * Applies schema type transforms to `json`. + * + * @param {Document} self + * @param {Object} json + * @return {Object} `json` + * @api private + */ + +function applySchemaTypeTransforms(self, json) { + const schema = self.$__schema; + const paths = Object.keys(schema.paths || {}); + const cur = self._doc; + + if (!cur) { + return json; + } + + for (const path of paths) { + const schematype = schema.paths[path]; + if (typeof schematype.options.transform === 'function') { + const val = self.$get(path); + if (val === undefined) { + continue; + } + const transformedValue = schematype.options.transform.call(self, val); + throwErrorIfPromise(path, transformedValue); + utils.setValue(path, transformedValue, json); + } else if (schematype.$embeddedSchemaType != null && + typeof schematype.$embeddedSchemaType.options.transform === 'function') { + const val = self.$get(path); + if (val === undefined) { + continue; + } + const vals = [].concat(val); + const transform = schematype.$embeddedSchemaType.options.transform; + for (let i = 0; i < vals.length; ++i) { + const transformedValue = transform.call(self, vals[i]); + vals[i] = transformedValue; + throwErrorIfPromise(path, transformedValue); + } + + json[path] = vals; + } + } + + return json; +} + +function throwErrorIfPromise(path, transformedValue) { + if (isPromise(transformedValue)) { + throw new Error('`transform` function must be synchronous, but the transform on path `' + path + '` returned a promise.'); + } +} + +/*! + * ignore + */ + +function omitDeselectedFields(self, json) { + const schema = self.$__schema; + const paths = Object.keys(schema.paths || {}); + const cur = self._doc; + + if (!cur) { + return json; + } + + let selected = self.$__.selected; + if (selected === void 0) { + selected = {}; + queryhelpers.applyPaths(selected, schema); + } + if (selected == null || Object.keys(selected).length === 0) { + return json; + } + + for (const path of paths) { + if (selected[path] != null && !selected[path]) { + delete json[path]; + } + } + + return json; +} + +/** + * The return value of this method is used in calls to [`JSON.stringify(doc)`](https://thecodebarbarian.com/the-80-20-guide-to-json-stringify-in-javascript#the-tojson-function). + * + * This method accepts the same options as [Document#toObject](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()). To apply the options to every document of your schema by default, set your [schemas](https://mongoosejs.com/docs/api/schema.html#Schema()) `toJSON` option to the same argument. + * + * schema.set('toJSON', { virtuals: true }); + * + * There is one difference between `toJSON()` and `toObject()` options. + * When you call `toJSON()`, the [`flattenMaps` option](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()) defaults to `true`, because `JSON.stringify()` doesn't convert maps to objects by default. + * When you call `toObject()`, the `flattenMaps` option is `false` by default. + * + * See [schema options](https://mongoosejs.com/docs/guide.html#toJSON) for more information on setting `toJSON` option defaults. + * + * @param {Object} options + * @param {Boolean} [options.flattenMaps=true] if true, convert Maps to [POJOs](https://masteringjs.io/tutorials/fundamentals/pojo). Useful if you want to `JSON.stringify()` the result. + * @param {Boolean} [options.flattenObjectIds=false] if true, convert any ObjectIds in the result to 24 character hex strings. + * @return {Object} + * @see Document#toObject https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject() + * @see JSON.stringify() in JavaScript https://thecodebarbarian.com/the-80-20-guide-to-json-stringify-in-javascript.html + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.toJSON = function(options) { + return this.$toObject(options, true); +}; + +/*! + * ignore + */ + +Document.prototype.ownerDocument = function() { + return this; +}; + + +/** + * If this document is a subdocument or populated document, returns the document's + * parent. Returns the original document if there is no parent. + * + * @return {Document} + * @api public + * @method parent + * @memberOf Document + * @instance + */ + +Document.prototype.parent = function() { + if (this.$isSubdocument || this.$__.wasPopulated) { + return this.$__.parent; + } + return this; +}; + +/** + * Alias for [`parent()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.parent()). If this document is a subdocument or populated + * document, returns the document's parent. Returns `undefined` otherwise. + * + * @return {Document} + * @api public + * @method $parent + * @memberOf Document + * @instance + */ + +Document.prototype.$parent = Document.prototype.parent; + +/** + * Helper for console.log + * + * @return {String} + * @api public + * @method inspect + * @memberOf Document + * @instance + */ + +Document.prototype.inspect = function(options) { + const isPOJO = utils.isPOJO(options); + let opts; + if (isPOJO) { + opts = options; + opts.minimize = false; + } + + const ret = arguments.length > 0 ? this.toObject(opts) : this.toObject(); + + if (ret == null) { + // If `toObject()` returns null, `this` is still an object, so if `inspect()` + // prints out null this can cause some serious confusion. See gh-7942. + return 'MongooseDocument { ' + ret + ' }'; + } + + return ret; +}; + +if (inspect.custom) { + // Avoid Node deprecation warning DEP0079 + Document.prototype[inspect.custom] = Document.prototype.inspect; +} + +/** + * Helper for console.log + * + * @return {String} + * @api public + * @method toString + * @memberOf Document + * @instance + */ + +Document.prototype.toString = function() { + const ret = this.inspect(); + if (typeof ret === 'string') { + return ret; + } + return inspect(ret); +}; + +/** + * Returns true if this document is equal to another document. + * + * Documents are considered equal when they have matching `_id`s, unless neither + * document has an `_id`, in which case this function falls back to using + * `deepEqual()`. + * + * @param {Document} [doc] a document to compare. If falsy, will always return "false". + * @return {Boolean} + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.equals = function(doc) { + if (!doc) { + return false; + } + + const tid = this.$__getValue('_id'); + const docid = doc.$__ != null ? doc.$__getValue('_id') : doc; + if (!tid && !docid) { + return deepEqual(this, doc); + } + return tid && tid.equals + ? tid.equals(docid) + : tid === docid; +}; + +/** + * Populates paths on an existing document. + * + * #### Example: + * + * // Given a document, `populate()` lets you pull in referenced docs + * await doc.populate([ + * 'stories', + * { path: 'fans', sort: { name: -1 } } + * ]); + * doc.populated('stories'); // Array of ObjectIds + * doc.stories[0].title; // 'Casino Royale' + * doc.populated('fans'); // Array of ObjectIds + * + * // If the referenced doc has been deleted, `populate()` will + * // remove that entry from the array. + * await Story.delete({ title: 'Casino Royale' }); + * await doc.populate('stories'); // Empty array + * + * // You can also pass additional query options to `populate()`, + * // like projections: + * await doc.populate('fans', '-email'); + * doc.fans[0].email // undefined because of 2nd param `select` + * + * @param {String|Object|Array} path either the path to populate or an object specifying all parameters, or either an array of those + * @param {Object|String} [select] Field selection for the population query + * @param {Model} [model] The model you wish to use for population. If not specified, populate will look up the model by the name in the Schema's `ref` field. + * @param {Object} [match] Conditions for the population query + * @param {Object} [options] Options for the population query (sort, etc) + * @param {String} [options.path=null] The path to populate. + * @param {string|PopulateOptions} [options.populate=null] Recursively populate paths in the populated documents. See [deep populate docs](https://mongoosejs.com/docs/populate.html#deep-populate). + * @param {boolean} [options.retainNullValues=false] by default, Mongoose removes null and undefined values from populated arrays. Use this option to make `populate()` retain `null` and `undefined` array entries. + * @param {boolean} [options.getters=false] if true, Mongoose will call any getters defined on the `localField`. By default, Mongoose gets the raw value of `localField`. For example, you would need to set this option to `true` if you wanted to [add a `lowercase` getter to your `localField`](https://mongoosejs.com/docs/schematypes.html#schematype-options). + * @param {boolean} [options.clone=false] When you do `BlogPost.find().populate('author')`, blog posts with the same author will share 1 copy of an `author` doc. Enable this option to make Mongoose clone populated docs before assigning them. + * @param {Object|Function} [options.match=null] Add an additional filter to the populate query. Can be a filter object containing [MongoDB query syntax](https://www.mongodb.com/docs/manual/tutorial/query-documents/), or a function that returns a filter object. + * @param {Function} [options.transform=null] Function that Mongoose will call on every populated document that allows you to transform the populated document. + * @param {Object} [options.options=null] Additional options like `limit` and `lean`. + * @param {Function} [callback] Callback + * @see population https://mongoosejs.com/docs/populate.html + * @see Query#select https://mongoosejs.com/docs/api/query.html#Query.prototype.select() + * @see Model.populate https://mongoosejs.com/docs/api/model.html#Model.populate() + * @memberOf Document + * @instance + * @return {Promise|null} Returns a Promise if no `callback` is given. + * @api public + */ + +Document.prototype.populate = async function populate() { + const pop = {}; + const args = [...arguments]; + if (typeof args[args.length - 1] === 'function') { + throw new MongooseError('Document.prototype.populate() no longer accepts a callback'); + } + + if (args.length !== 0) { + // use hash to remove duplicate paths + const res = utils.populate.apply(null, args); + for (const populateOptions of res) { + pop[populateOptions.path] = populateOptions; + } + } + + const paths = utils.object.vals(pop); + let topLevelModel = this.constructor; + if (this.$__isNested) { + topLevelModel = this.$__[scopeSymbol].constructor; + const nestedPath = this.$__.nestedPath; + paths.forEach(function(populateOptions) { + populateOptions.path = nestedPath + '.' + populateOptions.path; + }); + } + + // Use `$session()` by default if the document has an associated session + // See gh-6754 + if (this.$session() != null) { + const session = this.$session(); + paths.forEach(path => { + if (path.options == null) { + path.options = { session: session }; + return; + } + if (!('session' in path.options)) { + path.options.session = session; + } + }); + } + + paths.forEach(p => { + p._localModel = topLevelModel; + }); + + return topLevelModel.populate(this, paths); +}; + +/** + * Gets all populated documents associated with this document. + * + * @api public + * @return {Document[]} array of populated documents. Empty array if there are no populated documents associated with this document. + * @memberOf Document + * @method $getPopulatedDocs + * @instance + */ + +Document.prototype.$getPopulatedDocs = function $getPopulatedDocs() { + let keys = []; + if (this.$__.populated != null) { + keys = keys.concat(Object.keys(this.$__.populated)); + } + let result = []; + for (const key of keys) { + const value = this.$get(key); + if (Array.isArray(value)) { + result = result.concat(value); + } else if (value instanceof Document) { + result.push(value); + } + } + return result; +}; + +/** + * Gets _id(s) used during population of the given `path`. + * + * #### Example: + * + * const doc = await Model.findOne().populate('author'); + * + * console.log(doc.author.name); // Dr.Seuss + * console.log(doc.populated('author')); // '5144cf8050f071d979c118a7' + * + * If the path was not populated, returns `undefined`. + * + * @param {String} path + * @param {Any} [val] + * @param {Object} [options] + * @return {Array|ObjectId|Number|Buffer|String|undefined} + * @memberOf Document + * @instance + * @api public + */ + +Document.prototype.populated = function(path, val, options) { + // val and options are internal + if (val == null || val === true) { + if (!this.$__.populated) { + return undefined; + } + if (typeof path !== 'string') { + return undefined; + } + + // Map paths can be populated with either `path.$*` or just `path` + const _path = path.endsWith('.$*') ? path.replace(/\.\$\*$/, '') : path; + + const v = this.$__.populated[_path]; + if (v) { + return val === true ? v : v.value; + } + return undefined; + } + + this.$__.populated || (this.$__.populated = {}); + this.$__.populated[path] = { value: val, options: options }; + + // If this was a nested populate, make sure each populated doc knows + // about its populated children (gh-7685) + const pieces = path.split('.'); + for (let i = 0; i < pieces.length - 1; ++i) { + const subpath = pieces.slice(0, i + 1).join('.'); + const subdoc = this.$get(subpath); + if (subdoc != null && subdoc.$__ != null && this.$populated(subpath)) { + const rest = pieces.slice(i + 1).join('.'); + subdoc.$populated(rest, val, options); + // No need to continue because the above recursion should take care of + // marking the rest of the docs as populated + break; + } + } + + return val; +}; + +/** + * Alias of [`.populated`](https://mongoosejs.com/docs/api/document.html#Document.prototype.populated()). + * + * @method $populated + * @memberOf Document + * @api public + */ + +Document.prototype.$populated = Document.prototype.populated; + +/** + * Throws an error if a given path is not populated + * + * #### Example: + * + * const doc = await Model.findOne().populate('author'); + * + * doc.$assertPopulated('author'); // does not throw + * doc.$assertPopulated('other path'); // throws an error + * + * // Manually populate and assert in one call. The following does + * // `doc.$set({ likes })` before asserting. + * doc.$assertPopulated('likes', { likes }); + * + * + * @param {String|String[]} path path or array of paths to check. `$assertPopulated` throws if any of the given paths is not populated. + * @param {Object} [values] optional values to `$set()`. Convenient if you want to manually populate a path and assert that the path was populated in 1 call. + * @return {Document} this + * @memberOf Document + * @method $assertPopulated + * @instance + * @api public + */ + +Document.prototype.$assertPopulated = function $assertPopulated(path, values) { + if (Array.isArray(path)) { + path.forEach(p => this.$assertPopulated(p, values)); + return this; + } + + if (arguments.length > 1) { + this.$set(values); + } + + if (!this.$populated(path)) { + throw new MongooseError(`Expected path "${path}" to be populated`); + } + + return this; +}; + +/** + * Takes a populated field and returns it to its unpopulated state. + * + * #### Example: + * + * Model.findOne().populate('author').exec(function (err, doc) { + * console.log(doc.author.name); // Dr.Seuss + * console.log(doc.depopulate('author')); + * console.log(doc.author); // '5144cf8050f071d979c118a7' + * }) + * + * If the path was not provided, then all populated fields are returned to their unpopulated state. + * + * @param {String|String[]} [path] Specific Path to depopulate. If unset, will depopulate all paths on the Document. Or multiple space-delimited paths. + * @return {Document} this + * @see Document.populate https://mongoosejs.com/docs/api/document.html#Document.prototype.populate() + * @api public + * @memberOf Document + * @instance + */ + +Document.prototype.depopulate = function(path) { + if (typeof path === 'string') { + path = path.indexOf(' ') === -1 ? [path] : path.split(' '); + } + + let populatedIds; + const virtualKeys = this.$$populatedVirtuals ? Object.keys(this.$$populatedVirtuals) : []; + const populated = this.$__ && this.$__.populated || {}; + + if (arguments.length === 0) { + // Depopulate all + for (const virtualKey of virtualKeys) { + delete this.$$populatedVirtuals[virtualKey]; + delete this._doc[virtualKey]; + delete populated[virtualKey]; + } + + const keys = Object.keys(populated); + + for (const key of keys) { + populatedIds = this.$populated(key); + if (!populatedIds) { + continue; + } + delete populated[key]; + utils.setValue(key, populatedIds, this._doc); + } + return this; + } + + for (const singlePath of path) { + populatedIds = this.$populated(singlePath); + delete populated[singlePath]; + + if (virtualKeys.indexOf(singlePath) !== -1) { + delete this.$$populatedVirtuals[singlePath]; + delete this._doc[singlePath]; + } else if (populatedIds) { + utils.setValue(singlePath, populatedIds, this._doc); + } + } + return this; +}; + + +/** + * Returns the full path to this document. + * + * @param {String} [path] + * @return {String} + * @api private + * @method $__fullPath + * @memberOf Document + * @instance + */ + +Document.prototype.$__fullPath = function(path) { + // overridden in SubDocuments + return path || ''; +}; + +/** + * Returns the changes that happened to the document + * in the format that will be sent to MongoDB. + * + * #### Example: + * + * const userSchema = new Schema({ + * name: String, + * age: Number, + * country: String + * }); + * const User = mongoose.model('User', userSchema); + * const user = await User.create({ + * name: 'Hafez', + * age: 25, + * country: 'Egypt' + * }); + * + * // returns an empty object, no changes happened yet + * user.getChanges(); // { } + * + * user.country = undefined; + * user.age = 26; + * + * user.getChanges(); // { $set: { age: 26 }, { $unset: { country: 1 } } } + * + * await user.save(); + * + * user.getChanges(); // { } + * + * Modifying the object that `getChanges()` returns does not affect the document's + * change tracking state. Even if you `delete user.getChanges().$set`, Mongoose + * will still send a `$set` to the server. + * + * @return {Object} + * @api public + * @method getChanges + * @memberOf Document + * @instance + */ + +Document.prototype.getChanges = function() { + const delta = this.$__delta(); + const changes = delta ? delta[1] : {}; + return changes; +}; + +/** + * Returns a copy of this document with a deep clone of `_doc` and `$__`. + * + * @return {Document} a copy of this document + * @api public + * @method $clone + * @memberOf Document + * @instance + */ + +Document.prototype.$clone = function() { + const Model = this.constructor; + const clonedDoc = new Model(); + clonedDoc.$isNew = this.$isNew; + if (this._doc) { + clonedDoc._doc = clone(this._doc, { retainDocuments: true }); + } + if (this.$__) { + const Cache = this.$__.constructor; + const clonedCache = new Cache(); + for (const key of Object.getOwnPropertyNames(this.$__)) { + if (key === 'activePaths') { + continue; + } + clonedCache[key] = clone(this.$__[key]); + } + Object.assign(clonedCache.activePaths, clone({ ...this.$__.activePaths })); + clonedDoc.$__ = clonedCache; + } + return clonedDoc; +}; + +/*! + * Module exports. + */ + +Document.ValidationError = ValidationError; +module.exports = exports = Document; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/documentProvider.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/documentProvider.js new file mode 100644 index 000000000..894494403 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/documentProvider.js @@ -0,0 +1,30 @@ +'use strict'; + +/* eslint-env browser */ + +/*! + * Module dependencies. + */ +const Document = require('./document.js'); +const BrowserDocument = require('./browserDocument.js'); + +let isBrowser = false; + +/** + * Returns the Document constructor for the current context + * + * @api private + */ +module.exports = function documentProvider() { + if (isBrowser) { + return BrowserDocument; + } + return Document; +}; + +/*! + * ignore + */ +module.exports.setBrowser = function(flag) { + isBrowser = flag; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/driver.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/driver.js new file mode 100644 index 000000000..cf7ca3d7b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/driver.js @@ -0,0 +1,15 @@ +'use strict'; + +/*! + * ignore + */ + +let driver = null; + +module.exports.get = function() { + return driver; +}; + +module.exports.set = function(v) { + driver = v; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/SPEC.md b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/SPEC.md new file mode 100644 index 000000000..64646931e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/SPEC.md @@ -0,0 +1,4 @@ + +# Driver Spec + +TODO diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/binary.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/binary.js new file mode 100644 index 000000000..4658f7b9e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/binary.js @@ -0,0 +1,14 @@ + +/*! + * Module dependencies. + */ + +'use strict'; + +const Binary = require('bson').Binary; + +/*! + * Module exports. + */ + +module.exports = exports = Binary; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/decimal128.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/decimal128.js new file mode 100644 index 000000000..5668182b3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/decimal128.js @@ -0,0 +1,7 @@ +/*! + * ignore + */ + +'use strict'; + +module.exports = require('bson').Decimal128; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/index.js new file mode 100644 index 000000000..681ba9519 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/index.js @@ -0,0 +1,12 @@ +/*! + * Module exports. + */ + +'use strict'; + +exports.Collection = function() { + throw new Error('Cannot create a collection from browser library'); +}; +exports.Connection = function() { + throw new Error('Cannot create a connection from browser library'); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/objectid.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/objectid.js new file mode 100644 index 000000000..d847afe3b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/browser/objectid.js @@ -0,0 +1,29 @@ + +/*! + * [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) ObjectId + * @constructor NodeMongoDbObjectId + * @see ObjectId + */ + +'use strict'; + +const ObjectId = require('bson').ObjectID; + +/** + * Getter for convenience with populate, see gh-6115 + * @api private + */ + +Object.defineProperty(ObjectId.prototype, '_id', { + enumerable: false, + configurable: true, + get: function() { + return this; + } +}); + +/*! + * ignore + */ + +module.exports = exports = ObjectId; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js new file mode 100644 index 000000000..408da3d0e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js @@ -0,0 +1,468 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseCollection = require('../../collection'); +const MongooseError = require('../../error/mongooseError'); +const Collection = require('mongodb').Collection; +const ObjectId = require('../../types/objectid'); +const getConstructorName = require('../../helpers/getConstructorName'); +const internalToObjectOptions = require('../../options').internalToObjectOptions; +const stream = require('stream'); +const util = require('util'); + +/** + * A [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) collection implementation. + * + * All methods methods from the [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) driver are copied and wrapped in queue management. + * + * @inherits Collection https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html + * @api private + */ + +function NativeCollection(name, conn, options) { + this.collection = null; + this.Promise = options.Promise || Promise; + this.modelName = options.modelName; + delete options.modelName; + this._closed = false; + MongooseCollection.apply(this, arguments); +} + +/*! + * Inherit from abstract Collection. + */ + +Object.setPrototypeOf(NativeCollection.prototype, MongooseCollection.prototype); + +/** + * Called when the connection opens. + * + * @api private + */ + +NativeCollection.prototype.onOpen = function() { + this.collection = this.conn.db.collection(this.name); + MongooseCollection.prototype.onOpen.call(this); + return this.collection; +}; + +/** + * Called when the connection closes + * + * @api private + */ + +NativeCollection.prototype.onClose = function(force) { + MongooseCollection.prototype.onClose.call(this, force); +}; + +/** + * Helper to get the collection, in case `this.collection` isn't set yet. + * May happen if `bufferCommands` is false and created the model when + * Mongoose was disconnected. + * + * @api private + */ + +NativeCollection.prototype._getCollection = function _getCollection() { + if (this.collection) { + return this.collection; + } + if (this.conn.db != null) { + this.collection = this.conn.db.collection(this.name); + return this.collection; + } + return null; +}; + +/*! + * ignore + */ + +const syncCollectionMethods = { watch: true, find: true, aggregate: true }; + +/** + * Copy the collection methods and make them subject to queues + * @param {Number|String} I + * @api private + */ + +function iter(i) { + NativeCollection.prototype[i] = function() { + const collection = this._getCollection(); + const args = Array.from(arguments); + const _this = this; + const globalDebug = _this && + _this.conn && + _this.conn.base && + _this.conn.base.options && + _this.conn.base.options.debug; + const connectionDebug = _this && + _this.conn && + _this.conn.options && + _this.conn.options.debug; + const debug = connectionDebug == null ? globalDebug : connectionDebug; + const lastArg = arguments[arguments.length - 1]; + const opId = new ObjectId(); + + // If user force closed, queueing will hang forever. See #5664 + if (this.conn.$wasForceClosed) { + const error = new MongooseError('Connection was force closed'); + if (args.length > 0 && + typeof args[args.length - 1] === 'function') { + args[args.length - 1](error); + return; + } else { + throw error; + } + } + + let _args = args; + let callback = null; + if (this._shouldBufferCommands() && this.buffer) { + this.conn.emit('buffer', { + _id: opId, + modelName: _this.modelName, + collectionName: _this.name, + method: i, + args: args + }); + + let callback; + let _args = args; + let promise = null; + let timeout = null; + if (syncCollectionMethods[i] && typeof lastArg === 'function') { + this.addQueue(i, _args); + callback = lastArg; + } else if (syncCollectionMethods[i]) { + promise = new this.Promise((resolve, reject) => { + callback = function collectionOperationCallback(err, res) { + if (timeout != null) { + clearTimeout(timeout); + } + if (err != null) { + return reject(err); + } + resolve(res); + }; + _args = args.concat([callback]); + this.addQueue(i, _args); + }); + } else if (typeof lastArg === 'function') { + callback = function collectionOperationCallback() { + if (timeout != null) { + clearTimeout(timeout); + } + return lastArg.apply(this, arguments); + }; + _args = args.slice(0, args.length - 1).concat([callback]); + } else { + promise = new Promise((resolve, reject) => { + callback = function collectionOperationCallback(err, res) { + if (timeout != null) { + clearTimeout(timeout); + } + if (err != null) { + return reject(err); + } + resolve(res); + }; + _args = args.concat([callback]); + this.addQueue(i, _args); + }); + } + + const bufferTimeoutMS = this._getBufferTimeoutMS(); + timeout = setTimeout(() => { + const removed = this.removeQueue(i, _args); + if (removed) { + const message = 'Operation `' + this.name + '.' + i + '()` buffering timed out after ' + + bufferTimeoutMS + 'ms'; + const err = new MongooseError(message); + this.conn.emit('buffer-end', { _id: opId, modelName: _this.modelName, collectionName: _this.name, method: i, error: err }); + callback(err); + } + }, bufferTimeoutMS); + + if (!syncCollectionMethods[i] && typeof lastArg === 'function') { + this.addQueue(i, _args); + return; + } + + return promise; + } else if (!syncCollectionMethods[i] && typeof lastArg === 'function') { + callback = function collectionOperationCallback(err, res) { + if (err != null) { + _this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: _this.name, method: i, error: err }); + } else { + _this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: _this.name, method: i, result: res }); + } + return lastArg.apply(this, arguments); + }; + _args = args.slice(0, args.length - 1).concat([callback]); + } + + if (debug) { + if (typeof debug === 'function') { + let argsToAdd = null; + if (typeof args[args.length - 1] == 'function') { + argsToAdd = args.slice(0, args.length - 1); + } else { + argsToAdd = args; + } + debug.apply(_this, + [_this.name, i].concat(argsToAdd)); + } else if (debug instanceof stream.Writable) { + this.$printToStream(_this.name, i, args, debug); + } else { + const color = debug.color == null ? true : debug.color; + const shell = debug.shell == null ? false : debug.shell; + this.$print(_this.name, i, args, color, shell); + } + } + + this.conn.emit('operation-start', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, params: _args }); + + try { + if (collection == null) { + const message = 'Cannot call `' + this.name + '.' + i + '()` before initial connection ' + + 'is complete if `bufferCommands = false`. Make sure you `await mongoose.connect()` if ' + + 'you have `bufferCommands = false`.'; + throw new MongooseError(message); + } + + if (syncCollectionMethods[i] && typeof lastArg === 'function') { + const result = collection[i].apply(collection, _args.slice(0, _args.length - 1)); + this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, result }); + return lastArg.call(this, null, result); + } + + const ret = collection[i].apply(collection, _args); + if (ret != null && typeof ret.then === 'function') { + return ret.then( + result => { + if (typeof lastArg === 'function') { + lastArg(null, result); + } else { + this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, result }); + } + return result; + }, + error => { + if (typeof lastArg === 'function') { + lastArg(error); + return; + } else { + this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, error }); + } + throw error; + } + ); + } + return ret; + } catch (error) { + // Collection operation may throw because of max bson size, catch it here + // See gh-3906 + if (typeof lastArg === 'function') { + return lastArg(error); + } else { + this.conn.emit('operation-end', { _id: opId, modelName: _this.modelName, collectionName: this.name, method: i, error: error }); + + throw error; + } + } + }; +} + +for (const key of Object.getOwnPropertyNames(Collection.prototype)) { + // Janky hack to work around gh-3005 until we can get rid of the mongoose + // collection abstraction + const descriptor = Object.getOwnPropertyDescriptor(Collection.prototype, key); + // Skip properties with getters because they may throw errors (gh-8528) + if (descriptor.get !== undefined) { + continue; + } + if (typeof Collection.prototype[key] !== 'function') { + continue; + } + + iter(key); +} + +/** + * Debug print helper + * + * @api public + * @method $print + */ + +NativeCollection.prototype.$print = function(name, i, args, color, shell) { + const moduleName = color ? '\x1B[0;36mMongoose:\x1B[0m ' : 'Mongoose: '; + const functionCall = [name, i].join('.'); + const _args = []; + for (let j = args.length - 1; j >= 0; --j) { + if (this.$format(args[j]) || _args.length) { + _args.unshift(this.$format(args[j], color, shell)); + } + } + const params = '(' + _args.join(', ') + ')'; + + console.info(moduleName + functionCall + params); +}; + +/** + * Debug print helper + * + * @api public + * @method $print + */ + +NativeCollection.prototype.$printToStream = function(name, i, args, stream) { + const functionCall = [name, i].join('.'); + const _args = []; + for (let j = args.length - 1; j >= 0; --j) { + if (this.$format(args[j]) || _args.length) { + _args.unshift(this.$format(args[j])); + } + } + const params = '(' + _args.join(', ') + ')'; + + stream.write(functionCall + params, 'utf8'); +}; + +/** + * Formatter for debug print args + * + * @api public + * @method $format + */ + +NativeCollection.prototype.$format = function(arg, color, shell) { + const type = typeof arg; + if (type === 'function' || type === 'undefined') return ''; + return format(arg, false, color, shell); +}; + +/** + * Debug print helper + * @param {Any} representation + * @api private + */ + +function inspectable(representation) { + const ret = { + inspect: function() { return representation; } + }; + if (util.inspect.custom) { + ret[util.inspect.custom] = ret.inspect; + } + return ret; +} +function map(o) { + return format(o, true); +} +function formatObjectId(x, key) { + x[key] = inspectable('ObjectId("' + x[key].toHexString() + '")'); +} +function formatDate(x, key, shell) { + if (shell) { + x[key] = inspectable('ISODate("' + x[key].toUTCString() + '")'); + } else { + x[key] = inspectable('new Date("' + x[key].toUTCString() + '")'); + } +} +function format(obj, sub, color, shell) { + if (obj && typeof obj.toBSON === 'function') { + obj = obj.toBSON(); + } + if (obj == null) { + return obj; + } + + const clone = require('../../helpers/clone'); + let x = clone(obj, internalToObjectOptions); + const constructorName = getConstructorName(x); + + if (constructorName === 'Binary') { + x = 'BinData(' + x.sub_type + ', "' + x.toString('base64') + '")'; + } else if (constructorName === 'ObjectId') { + x = inspectable('ObjectId("' + x.toHexString() + '")'); + } else if (constructorName === 'Date') { + x = inspectable('new Date("' + x.toUTCString() + '")'); + } else if (constructorName === 'Object') { + const keys = Object.keys(x); + const numKeys = keys.length; + let key; + for (let i = 0; i < numKeys; ++i) { + key = keys[i]; + if (x[key]) { + let error; + if (typeof x[key].toBSON === 'function') { + try { + // `session.toBSON()` throws an error. This means we throw errors + // in debug mode when using transactions, see gh-6712. As a + // workaround, catch `toBSON()` errors, try to serialize without + // `toBSON()`, and rethrow if serialization still fails. + x[key] = x[key].toBSON(); + } catch (_error) { + error = _error; + } + } + const _constructorName = getConstructorName(x[key]); + if (_constructorName === 'Binary') { + x[key] = 'BinData(' + x[key].sub_type + ', "' + + x[key].buffer.toString('base64') + '")'; + } else if (_constructorName === 'Object') { + x[key] = format(x[key], true); + } else if (_constructorName === 'ObjectId') { + formatObjectId(x, key); + } else if (_constructorName === 'Date') { + formatDate(x, key, shell); + } else if (_constructorName === 'ClientSession') { + x[key] = inspectable('ClientSession("' + + ( + x[key] && + x[key].id && + x[key].id.id && + x[key].id.id.buffer || '' + ).toString('hex') + '")'); + } else if (Array.isArray(x[key])) { + x[key] = x[key].map(map); + } else if (error != null) { + // If there was an error with `toBSON()` and the object wasn't + // already converted to a string representation, rethrow it. + // Open to better ideas on how to handle this. + throw error; + } + } + } + } + if (sub) { + return x; + } + + return util. + inspect(x, false, 10, color). + replace(/\n/g, ''). + replace(/\s{2,}/g, ' '); +} + +/** + * Retrieves information about this collections indexes. + * + * @param {Function} callback + * @method getIndexes + * @api public + */ + +NativeCollection.prototype.getIndexes = NativeCollection.prototype.indexInformation; + +/*! + * Module exports. + */ + +module.exports = NativeCollection; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js new file mode 100644 index 000000000..3c64ff221 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js @@ -0,0 +1,427 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseConnection = require('../../connection'); +const MongooseError = require('../../error/index'); +const STATES = require('../../connectionState'); +const mongodb = require('mongodb'); +const pkg = require('../../../package.json'); +const processConnectionOptions = require('../../helpers/processConnectionOptions'); +const setTimeout = require('../../helpers/timers').setTimeout; +const utils = require('../../utils'); + +/** + * A [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) connection implementation. + * + * @inherits Connection + * @api private + */ + +function NativeConnection() { + MongooseConnection.apply(this, arguments); + this._listening = false; +} + +/** + * Expose the possible connection states. + * @api public + */ + +NativeConnection.STATES = STATES; + +/*! + * Inherits from Connection. + */ + +Object.setPrototypeOf(NativeConnection.prototype, MongooseConnection.prototype); + +/** + * Switches to a different database using the same connection pool. + * + * Returns a new connection object, with the new db. If you set the `useCache` + * option, `useDb()` will cache connections by `name`. + * + * **Note:** Calling `close()` on a `useDb()` connection will close the base connection as well. + * + * @param {String} name The database name + * @param {Object} [options] + * @param {Boolean} [options.useCache=false] If true, cache results so calling `useDb()` multiple times with the same name only creates 1 connection object. + * @param {Boolean} [options.noListener=false] If true, the new connection object won't listen to any events on the base connection. This is better for memory usage in cases where you're calling `useDb()` for every request. + * @return {Connection} New Connection Object + * @api public + */ + +NativeConnection.prototype.useDb = function(name, options) { + // Return immediately if cached + options = options || {}; + if (options.useCache && this.relatedDbs[name]) { + return this.relatedDbs[name]; + } + + // we have to manually copy all of the attributes... + const newConn = new this.constructor(); + newConn.name = name; + newConn.base = this.base; + newConn.collections = {}; + newConn.models = {}; + newConn.replica = this.replica; + newConn.config = Object.assign({}, this.config, newConn.config); + newConn.name = this.name; + newConn.options = this.options; + newConn._readyState = this._readyState; + newConn._closeCalled = this._closeCalled; + newConn._hasOpened = this._hasOpened; + newConn._listening = false; + newConn._parent = this; + + newConn.host = this.host; + newConn.port = this.port; + newConn.user = this.user; + newConn.pass = this.pass; + + // First, when we create another db object, we are not guaranteed to have a + // db object to work with. So, in the case where we have a db object and it + // is connected, we can just proceed with setting everything up. However, if + // we do not have a db or the state is not connected, then we need to wait on + // the 'open' event of the connection before doing the rest of the setup + // the 'connected' event is the first time we'll have access to the db object + + const _this = this; + + newConn.client = _this.client; + + if (this.db && this._readyState === STATES.connected) { + wireup(); + } else { + this.once('connected', wireup); + } + + function wireup() { + newConn.client = _this.client; + const _opts = {}; + if (options.hasOwnProperty('noListener')) { + _opts.noListener = options.noListener; + } + newConn.db = _this.client.db(name, _opts); + newConn.onOpen(); + } + + newConn.name = name; + + // push onto the otherDbs stack, this is used when state changes + if (options.noListener !== true) { + this.otherDbs.push(newConn); + } + newConn.otherDbs.push(this); + + // push onto the relatedDbs cache, this is used when state changes + if (options && options.useCache) { + this.relatedDbs[newConn.name] = newConn; + newConn.relatedDbs = this.relatedDbs; + } + + return newConn; +}; + +/** + * Removes the database connection with the given name created with `useDb()`. + * + * Throws an error if the database connection was not found. + * + * #### Example: + * + * // Connect to `initialdb` first + * const conn = await mongoose.createConnection('mongodb://127.0.0.1:27017/initialdb').asPromise(); + * + * // Creates an un-cached connection to `mydb` + * const db = conn.useDb('mydb'); + * + * // Closes `db`, and removes `db` from `conn.relatedDbs` and `conn.otherDbs` + * await conn.removeDb('mydb'); + * + * @method removeDb + * @memberOf Connection + * @param {String} name The database name + * @return {Connection} this + */ + +NativeConnection.prototype.removeDb = function removeDb(name) { + const dbs = this.otherDbs.filter(db => db.name === name); + if (!dbs.length) { + throw new MongooseError(`No connections to database "${name}" found`); + } + + for (const db of dbs) { + db._closeCalled = true; + db._destroyCalled = true; + db._readyState = STATES.disconnected; + db.$wasForceClosed = true; + } + delete this.relatedDbs[name]; + this.otherDbs = this.otherDbs.filter(db => db.name !== name); +}; + +/** + * Closes the connection + * + * @param {Boolean} [force] + * @return {Connection} this + * @api private + */ + +NativeConnection.prototype.doClose = async function doClose(force) { + if (this.client == null) { + return this; + } + + let skipCloseClient = false; + if (force != null && typeof force === 'object') { + skipCloseClient = force.skipCloseClient; + force = force.force; + } + + if (skipCloseClient) { + return this; + } + + await this.client.close(force); + // Defer because the driver will wait at least 1ms before finishing closing + // the pool, see https://github.com/mongodb-js/mongodb-core/blob/a8f8e4ce41936babc3b9112bf42d609779f03b39/lib/connection/pool.js#L1026-L1030. + // If there's queued operations, you may still get some background work + // after the callback is called. + await new Promise(resolve => setTimeout(resolve, 1)); + + return this; +}; + +/** + * Implementation of `listDatabases()` for MongoDB driver + * + * @return Promise + * @api public + */ + +NativeConnection.prototype.listDatabases = async function listDatabases() { + await this._waitForConnect(); + + return await this.db.admin().listDatabases(); +}; + +/*! + * ignore + */ + +NativeConnection.prototype.createClient = async function createClient(uri, options) { + if (typeof uri !== 'string') { + throw new MongooseError('The `uri` parameter to `openUri()` must be a ' + + `string, got "${typeof uri}". Make sure the first parameter to ` + + '`mongoose.connect()` or `mongoose.createConnection()` is a string.'); + } + + if (this._destroyCalled) { + throw new MongooseError( + 'Connection has been closed and destroyed, and cannot be used for re-opening the connection. ' + + 'Please create a new connection with `mongoose.createConnection()` or `mongoose.connect()`.' + ); + } + + if (this.readyState === STATES.connecting || this.readyState === STATES.connected) { + if (this._connectionString !== uri) { + throw new MongooseError('Can\'t call `openUri()` on an active connection with ' + + 'different connection strings. Make sure you aren\'t calling `mongoose.connect()` ' + + 'multiple times. See: https://mongoosejs.com/docs/connections.html#multiple_connections'); + } + } + + options = processConnectionOptions(uri, options); + + if (options) { + + const autoIndex = options.config && options.config.autoIndex != null ? + options.config.autoIndex : + options.autoIndex; + if (autoIndex != null) { + this.config.autoIndex = autoIndex !== false; + delete options.config; + delete options.autoIndex; + } + + if ('autoCreate' in options) { + this.config.autoCreate = !!options.autoCreate; + delete options.autoCreate; + } + + if ('sanitizeFilter' in options) { + this.config.sanitizeFilter = options.sanitizeFilter; + delete options.sanitizeFilter; + } + + if ('autoSearchIndex' in options) { + this.config.autoSearchIndex = options.autoSearchIndex; + delete options.autoSearchIndex; + } + + // Backwards compat + if (options.user || options.pass) { + options.auth = options.auth || {}; + options.auth.username = options.user; + options.auth.password = options.pass; + + this.user = options.user; + this.pass = options.pass; + } + delete options.user; + delete options.pass; + + if (options.bufferCommands != null) { + this.config.bufferCommands = options.bufferCommands; + delete options.bufferCommands; + } + } else { + options = {}; + } + + this._connectionOptions = options; + const dbName = options.dbName; + if (dbName != null) { + this.$dbName = dbName; + } + delete options.dbName; + + if (!utils.hasUserDefinedProperty(options, 'driverInfo')) { + options.driverInfo = { + name: 'Mongoose', + version: pkg.version + }; + } + + this.readyState = STATES.connecting; + this._connectionString = uri; + + let client; + try { + client = new mongodb.MongoClient(uri, options); + } catch (error) { + this.readyState = STATES.disconnected; + throw error; + } + this.client = client; + + client.setMaxListeners(0); + await client.connect(); + + _setClient(this, client, options, dbName); + + for (const db of this.otherDbs) { + _setClient(db, client, {}, db.name); + } + return this; +}; + +/*! + * ignore + */ + +NativeConnection.prototype.setClient = function setClient(client) { + if (!(client instanceof mongodb.MongoClient)) { + throw new MongooseError('Must call `setClient()` with an instance of MongoClient'); + } + if (this.readyState !== STATES.disconnected) { + throw new MongooseError('Cannot call `setClient()` on a connection that is already connected.'); + } + if (client.topology == null) { + throw new MongooseError('Cannot call `setClient()` with a MongoClient that you have not called `connect()` on yet.'); + } + + this._connectionString = client.s.url; + _setClient(this, client, {}, client.s.options.dbName); + + for (const model of Object.values(this.models)) { + // Errors handled internally, so safe to ignore error + model.init().catch(function $modelInitNoop() {}); + } + + return this; +}; + +/*! + * ignore + */ + +function _setClient(conn, client, options, dbName) { + const db = dbName != null ? client.db(dbName) : client.db(); + conn.db = db; + conn.client = client; + conn.host = client && + client.s && + client.s.options && + client.s.options.hosts && + client.s.options.hosts[0] && + client.s.options.hosts[0].host || void 0; + conn.port = client && + client.s && + client.s.options && + client.s.options.hosts && + client.s.options.hosts[0] && + client.s.options.hosts[0].port || void 0; + conn.name = dbName != null ? dbName : db.databaseName; + conn._closeCalled = client._closeCalled; + + const _handleReconnect = () => { + // If we aren't disconnected, we assume this reconnect is due to a + // socket timeout. If there's no activity on a socket for + // `socketTimeoutMS`, the driver will attempt to reconnect and emit + // this event. + if (conn.readyState !== STATES.connected) { + conn.readyState = STATES.connected; + conn.emit('reconnect'); + conn.emit('reconnected'); + conn.onOpen(); + } + }; + + const type = client && + client.topology && + client.topology.description && + client.topology.description.type || ''; + + if (type === 'Single') { + client.on('serverDescriptionChanged', ev => { + const newDescription = ev.newDescription; + if (newDescription.type === 'Unknown') { + conn.readyState = STATES.disconnected; + } else { + _handleReconnect(); + } + }); + } else if (type.startsWith('ReplicaSet')) { + client.on('topologyDescriptionChanged', ev => { + // Emit disconnected if we've lost connectivity to the primary + const description = ev.newDescription; + if (conn.readyState === STATES.connected && description.type !== 'ReplicaSetWithPrimary') { + // Implicitly emits 'disconnected' + conn.readyState = STATES.disconnected; + } else if (conn.readyState === STATES.disconnected && description.type === 'ReplicaSetWithPrimary') { + _handleReconnect(); + } + }); + } + + conn.onOpen(); + + for (const i in conn.collections) { + if (utils.object.hasOwnProperty(conn.collections, i)) { + conn.collections[i].onOpen(); + } + } +} + + +/*! + * Module exports. + */ + +module.exports = NativeConnection; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/index.js new file mode 100644 index 000000000..de82be598 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/drivers/node-mongodb-native/index.js @@ -0,0 +1,8 @@ +/*! + * Module exports. + */ + +'use strict'; + +exports.Collection = require('./collection'); +exports.Connection = require('./connection'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/browserMissingSchema.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/browserMissingSchema.js new file mode 100644 index 000000000..608cfd983 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/browserMissingSchema.js @@ -0,0 +1,28 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + + +class MissingSchemaError extends MongooseError { + /** + * MissingSchema Error constructor. + */ + constructor() { + super('Schema hasn\'t been registered for document.\n' + + 'Use mongoose.Document(name, schema)'); + } +} + +Object.defineProperty(MissingSchemaError.prototype, 'name', { + value: 'MongooseError' +}); + +/*! + * exports + */ + +module.exports = MissingSchemaError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/bulkWriteError.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/bulkWriteError.js new file mode 100644 index 000000000..1711b03b5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/bulkWriteError.js @@ -0,0 +1,41 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./'); + + +/** + * If `bulkWrite()` or `insertMany()` has validation errors, but + * all valid operations succeed, and 'throwOnValidationError' is true, + * Mongoose will throw this error. + * + * @api private + */ + +class MongooseBulkWriteError extends MongooseError { + constructor(validationErrors, results, rawResult, operation) { + let preview = validationErrors.map(e => e.message).join(', '); + if (preview.length > 200) { + preview = preview.slice(0, 200) + '...'; + } + super(`${operation} failed with ${validationErrors.length} Mongoose validation errors: ${preview}`); + + this.validationErrors = validationErrors; + this.results = results; + this.rawResult = rawResult; + this.operation = operation; + } +} + +Object.defineProperty(MongooseBulkWriteError.prototype, 'name', { + value: 'MongooseBulkWriteError' +}); + +/*! + * exports + */ + +module.exports = MongooseBulkWriteError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/cast.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/cast.js new file mode 100644 index 000000000..115927117 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/cast.js @@ -0,0 +1,158 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./mongooseError'); +const util = require('util'); + +/** + * Casting Error constructor. + * + * @param {String} type + * @param {String} value + * @inherits MongooseError + * @api private + */ + +class CastError extends MongooseError { + constructor(type, value, path, reason, schemaType) { + // If no args, assume we'll `init()` later. + if (arguments.length > 0) { + const valueType = getValueType(value); + const messageFormat = getMessageFormat(schemaType); + const msg = formatMessage(null, type, value, path, messageFormat, valueType, reason); + super(msg); + this.init(type, value, path, reason, schemaType); + } else { + super(formatMessage()); + } + } + + toJSON() { + return { + stringValue: this.stringValue, + valueType: this.valueType, + kind: this.kind, + value: this.value, + path: this.path, + reason: this.reason, + name: this.name, + message: this.message + }; + } + /*! + * ignore + */ + init(type, value, path, reason, schemaType) { + this.stringValue = getStringValue(value); + this.messageFormat = getMessageFormat(schemaType); + this.kind = type; + this.value = value; + this.path = path; + this.reason = reason; + this.valueType = getValueType(value); + } + + /** + * ignore + * @param {Readonly} other + * @api private + */ + copy(other) { + this.messageFormat = other.messageFormat; + this.stringValue = other.stringValue; + this.kind = other.kind; + this.value = other.value; + this.path = other.path; + this.reason = other.reason; + this.message = other.message; + this.valueType = other.valueType; + } + + /*! + * ignore + */ + setModel(model) { + this.message = formatMessage(model, this.kind, this.value, this.path, + this.messageFormat, this.valueType); + } +} + +Object.defineProperty(CastError.prototype, 'name', { + value: 'CastError' +}); + +function getStringValue(value) { + let stringValue = util.inspect(value); + stringValue = stringValue.replace(/^'|'$/g, '"'); + if (!stringValue.startsWith('"')) { + stringValue = '"' + stringValue + '"'; + } + return stringValue; +} + +function getValueType(value) { + if (value == null) { + return '' + value; + } + + const t = typeof value; + if (t !== 'object') { + return t; + } + if (typeof value.constructor !== 'function') { + return t; + } + return value.constructor.name; +} + +function getMessageFormat(schemaType) { + const messageFormat = schemaType && schemaType._castErrorMessage || null; + if (typeof messageFormat === 'string' || typeof messageFormat === 'function') { + return messageFormat; + } +} + +/*! + * ignore + */ + +function formatMessage(model, kind, value, path, messageFormat, valueType, reason) { + if (typeof messageFormat === 'string') { + const stringValue = getStringValue(value); + let ret = messageFormat. + replace('{KIND}', kind). + replace('{VALUE}', stringValue). + replace('{PATH}', path); + if (model != null) { + ret = ret.replace('{MODEL}', model.modelName); + } + + return ret; + } else if (typeof messageFormat === 'function') { + return messageFormat(value, path, model, kind); + } else { + const stringValue = getStringValue(value); + const valueTypeMsg = valueType ? ' (type ' + valueType + ')' : ''; + let ret = 'Cast to ' + kind + ' failed for value ' + + stringValue + valueTypeMsg + ' at path "' + path + '"'; + if (model != null) { + ret += ' for model "' + model.modelName + '"'; + } + if (reason != null && + typeof reason.constructor === 'function' && + reason.constructor.name !== 'AssertionError' && + reason.constructor.name !== 'Error') { + ret += ' because of "' + reason.constructor.name + '"'; + } + return ret; + } +} + +/*! + * exports + */ + +module.exports = CastError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/createCollectionsError.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/createCollectionsError.js new file mode 100644 index 000000000..4b69cae61 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/createCollectionsError.js @@ -0,0 +1,26 @@ +'use strict'; + +const MongooseError = require('./mongooseError'); + +/** + * createCollections Error constructor + * + * @param {String} message + * @param {String} errorsMap + * @inherits MongooseError + * @api private + */ + +class CreateCollectionsError extends MongooseError { + constructor(message, errorsMap) { + super(message); + this.errors = errorsMap; + } +} + +Object.defineProperty(CreateCollectionsError.prototype, 'name', { + value: 'CreateCollectionsError' +}); + +module.exports = CreateCollectionsError; + diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/divergentArray.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/divergentArray.js new file mode 100644 index 000000000..f266dbde4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/divergentArray.js @@ -0,0 +1,38 @@ + +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + +class DivergentArrayError extends MongooseError { + /** + * DivergentArrayError constructor. + * @param {Array} paths + * @api private + */ + constructor(paths) { + const msg = 'For your own good, using `document.save()` to update an array ' + + 'which was selected using an $elemMatch projection OR ' + + 'populated using skip, limit, query conditions, or exclusion of ' + + 'the _id field when the operation results in a $pop or $set of ' + + 'the entire array is not supported. The following ' + + 'path(s) would have been modified unsafely:\n' + + ' ' + paths.join('\n ') + '\n' + + 'Use Model.updateOne() to update these arrays instead.'; + // TODO write up a docs page (FAQ) and link to it + super(msg); + } +} + +Object.defineProperty(DivergentArrayError.prototype, 'name', { + value: 'DivergentArrayError' +}); + +/*! + * exports + */ + +module.exports = DivergentArrayError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/eachAsyncMultiError.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/eachAsyncMultiError.js new file mode 100644 index 000000000..b14156a09 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/eachAsyncMultiError.js @@ -0,0 +1,41 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + + +/** + * If `eachAsync()` is called with `continueOnError: true`, there can be + * multiple errors. This error class contains an `errors` property, which + * contains an array of all errors that occurred in `eachAsync()`. + * + * @api private + */ + +class EachAsyncMultiError extends MongooseError { + /** + * @param {String} connectionString + */ + constructor(errors) { + let preview = errors.map(e => e.message).join(', '); + if (preview.length > 50) { + preview = preview.slice(0, 50) + '...'; + } + super(`eachAsync() finished with ${errors.length} errors: ${preview}`); + + this.errors = errors; + } +} + +Object.defineProperty(EachAsyncMultiError.prototype, 'name', { + value: 'EachAsyncMultiError' +}); + +/*! + * exports + */ + +module.exports = EachAsyncMultiError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/index.js new file mode 100644 index 000000000..6e31a83ee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/index.js @@ -0,0 +1,227 @@ +'use strict'; + +/** + * MongooseError constructor. MongooseError is the base class for all + * Mongoose-specific errors. + * + * #### Example: + * + * const Model = mongoose.model('Test', new mongoose.Schema({ answer: Number })); + * const doc = new Model({ answer: 'not a number' }); + * const err = doc.validateSync(); + * + * err instanceof mongoose.Error.ValidationError; // true + * + * @constructor Error + * @param {String} msg Error message + * @inherits Error https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error + */ + +const MongooseError = require('./mongooseError'); + +/** + * The name of the error. The name uniquely identifies this Mongoose error. The + * possible values are: + * + * - `MongooseError`: general Mongoose error + * - `CastError`: Mongoose could not convert a value to the type defined in the schema path. May be in a `ValidationError` class' `errors` property. + * - `DivergentArrayError`: You attempted to `save()` an array that was modified after you loaded it with a `$elemMatch` or similar projection + * - `MissingSchemaError`: You tried to access a model with [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.model()) that was not defined + * - `DocumentNotFoundError`: The document you tried to [`save()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.save()) was not found + * - `ValidatorError`: error from an individual schema path's validator + * - `ValidationError`: error returned from [`validate()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()) or [`validateSync()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.validateSync()). Contains zero or more `ValidatorError` instances in `.errors` property. + * - `MissingSchemaError`: You called `mongoose.Document()` without a schema + * - `ObjectExpectedError`: Thrown when you set a nested path to a non-object value with [strict mode set](https://mongoosejs.com/docs/guide.html#strict). + * - `ObjectParameterError`: Thrown when you pass a non-object value to a function which expects an object as a paramter + * - `OverwriteModelError`: Thrown when you call [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.model()) to re-define a model that was already defined. + * - `ParallelSaveError`: Thrown when you call [`save()`](https://mongoosejs.com/docs/api/model.html#Model.prototype.save()) on a document when the same document instance is already saving. + * - `StrictModeError`: Thrown when you set a path that isn't the schema and [strict mode](https://mongoosejs.com/docs/guide.html#strict) is set to `throw`. + * - `VersionError`: Thrown when the [document is out of sync](https://mongoosejs.com/docs/guide.html#versionKey) + * + * @api public + * @property {String} name + * @memberOf Error + * @instance + */ + +/*! + * Module exports. + */ + +module.exports = exports = MongooseError; + +/** + * The default built-in validator error messages. + * + * @see Error.messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + * @memberOf Error + * @static + */ + +MongooseError.messages = require('./messages'); + +// backward compat +MongooseError.Messages = MongooseError.messages; + +/** + * An instance of this error class will be returned when `save()` fails + * because the underlying + * document was not found. The constructor takes one parameter, the + * conditions that mongoose passed to `updateOne()` when trying to update + * the document. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.DocumentNotFoundError = require('./notFound'); + +/** + * An instance of this error class will be returned when mongoose failed to + * cast a value. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.CastError = require('./cast'); + +/** + * An instance of this error class will be returned when [validation](https://mongoosejs.com/docs/validation.html) failed. + * The `errors` property contains an object whose keys are the paths that failed and whose values are + * instances of CastError or ValidationError. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.ValidationError = require('./validation'); + +/** + * A `ValidationError` has a hash of `errors` that contain individual + * `ValidatorError` instances. + * + * #### Example: + * + * const schema = Schema({ name: { type: String, required: true } }); + * const Model = mongoose.model('Test', schema); + * const doc = new Model({}); + * + * // Top-level error is a ValidationError, **not** a ValidatorError + * const err = doc.validateSync(); + * err instanceof mongoose.Error.ValidationError; // true + * + * // A ValidationError `err` has 0 or more ValidatorErrors keyed by the + * // path in the `err.errors` property. + * err.errors['name'] instanceof mongoose.Error.ValidatorError; + * + * err.errors['name'].kind; // 'required' + * err.errors['name'].path; // 'name' + * err.errors['name'].value; // undefined + * + * Instances of `ValidatorError` have the following properties: + * + * - `kind`: The validator's `type`, like `'required'` or `'regexp'` + * - `path`: The path that failed validation + * - `value`: The value that failed validation + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.ValidatorError = require('./validator'); + +/** + * An instance of this error class will be returned when you call `save()` after + * the document in the database was changed in a potentially unsafe way. See + * the [`versionKey` option](https://mongoosejs.com/docs/guide.html#versionKey) for more information. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.VersionError = require('./version'); + +/** + * An instance of this error class will be returned when you call `save()` multiple + * times on the same document in parallel. See the [FAQ](https://mongoosejs.com/docs/faq.html) for more + * information. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.ParallelSaveError = require('./parallelSave'); + +/** + * Thrown when a model with the given name was already registered on the connection. + * See [the FAQ about `OverwriteModelError`](https://mongoosejs.com/docs/faq.html#overwrite-model-error). + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.OverwriteModelError = require('./overwriteModel'); + +/** + * Thrown when you try to access a model that has not been registered yet + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.MissingSchemaError = require('./missingSchema'); + +/** + * Thrown when the MongoDB Node driver can't connect to a valid server + * to send an operation to. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.MongooseServerSelectionError = require('./serverSelection'); + +/** + * An instance of this error will be returned if you used an array projection + * and then modified the array in an unsafe way. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.DivergentArrayError = require('./divergentArray'); + +/** + * Thrown when your try to pass values to model constructor that + * were not specified in schema or change immutable properties when + * `strict` mode is `"throw"` + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.StrictModeError = require('./strict'); + +/** + * An instance of this error class will be returned when mongoose failed to + * populate with a path that is not existing. + * + * @api public + * @memberOf Error + * @static + */ + +MongooseError.StrictPopulateError = require('./strictPopulate'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/invalidSchemaOption.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/invalidSchemaOption.js new file mode 100644 index 000000000..089dc6a03 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/invalidSchemaOption.js @@ -0,0 +1,30 @@ + +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + +class InvalidSchemaOptionError extends MongooseError { + /** + * InvalidSchemaOption Error constructor. + * @param {String} name + * @api private + */ + constructor(name, option) { + const msg = `Cannot create use schema for property "${name}" because the schema has the ${option} option enabled.`; + super(msg); + } +} + +Object.defineProperty(InvalidSchemaOptionError.prototype, 'name', { + value: 'InvalidSchemaOptionError' +}); + +/*! + * exports + */ + +module.exports = InvalidSchemaOptionError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/messages.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/messages.js new file mode 100644 index 000000000..a2db50a6f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/messages.js @@ -0,0 +1,47 @@ + +/** + * The default built-in validator error messages. These may be customized. + * + * // customize within each schema or globally like so + * const mongoose = require('mongoose'); + * mongoose.Error.messages.String.enum = "Your custom message for {PATH}."; + * + * Error messages support basic templating. Mongoose will replace the following strings with the corresponding value. + * + * - `{PATH}` is replaced with the invalid document path + * - `{VALUE}` is replaced with the invalid value + * - `{TYPE}` is replaced with the validator type such as "regexp", "min", or "user defined" + * - `{MIN}` is replaced with the declared min value for the Number.min validator + * - `{MAX}` is replaced with the declared max value for the Number.max validator + * + * Click the "show code" link below to see all defaults. + * + * @static + * @memberOf MongooseError + * @api public + */ + +'use strict'; + +const msg = module.exports = exports = {}; + +msg.DocumentNotFoundError = null; + +msg.general = {}; +msg.general.default = 'Validator failed for path `{PATH}` with value `{VALUE}`'; +msg.general.required = 'Path `{PATH}` is required.'; + +msg.Number = {}; +msg.Number.min = 'Path `{PATH}` ({VALUE}) is less than minimum allowed value ({MIN}).'; +msg.Number.max = 'Path `{PATH}` ({VALUE}) is more than maximum allowed value ({MAX}).'; +msg.Number.enum = '`{VALUE}` is not a valid enum value for path `{PATH}`.'; + +msg.Date = {}; +msg.Date.min = 'Path `{PATH}` ({VALUE}) is before minimum allowed value ({MIN}).'; +msg.Date.max = 'Path `{PATH}` ({VALUE}) is after maximum allowed value ({MAX}).'; + +msg.String = {}; +msg.String.enum = '`{VALUE}` is not a valid enum value for path `{PATH}`.'; +msg.String.match = 'Path `{PATH}` is invalid ({VALUE}).'; +msg.String.minlength = 'Path `{PATH}` (`{VALUE}`) is shorter than the minimum allowed length ({MINLENGTH}).'; +msg.String.maxlength = 'Path `{PATH}` (`{VALUE}`) is longer than the maximum allowed length ({MAXLENGTH}).'; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/missingSchema.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/missingSchema.js new file mode 100644 index 000000000..2b3bf2425 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/missingSchema.js @@ -0,0 +1,31 @@ + +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + +class MissingSchemaError extends MongooseError { + /** + * MissingSchema Error constructor. + * @param {String} name + * @api private + */ + constructor(name) { + const msg = 'Schema hasn\'t been registered for model "' + name + '".\n' + + 'Use mongoose.model(name, schema)'; + super(msg); + } +} + +Object.defineProperty(MissingSchemaError.prototype, 'name', { + value: 'MissingSchemaError' +}); + +/*! + * exports + */ + +module.exports = MissingSchemaError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/mongooseError.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/mongooseError.js new file mode 100644 index 000000000..5505105cb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/mongooseError.js @@ -0,0 +1,13 @@ +'use strict'; + +/*! + * ignore + */ + +class MongooseError extends Error { } + +Object.defineProperty(MongooseError.prototype, 'name', { + value: 'MongooseError' +}); + +module.exports = MongooseError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/notFound.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/notFound.js new file mode 100644 index 000000000..19a22f3a1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/notFound.js @@ -0,0 +1,45 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./mongooseError'); +const util = require('util'); + +class DocumentNotFoundError extends MongooseError { + /** + * OverwriteModel Error constructor. + * @api private + */ + constructor(filter, model, numAffected, result) { + let msg; + const messages = MongooseError.messages; + if (messages.DocumentNotFoundError != null) { + msg = typeof messages.DocumentNotFoundError === 'function' ? + messages.DocumentNotFoundError(filter, model) : + messages.DocumentNotFoundError; + } else { + msg = 'No document found for query "' + util.inspect(filter) + + '" on model "' + model + '"'; + } + + super(msg); + + this.result = result; + this.numAffected = numAffected; + this.filter = filter; + // Backwards compat + this.query = filter; + } +} + +Object.defineProperty(DocumentNotFoundError.prototype, 'name', { + value: 'DocumentNotFoundError' +}); + +/*! + * exports + */ + +module.exports = DocumentNotFoundError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/objectExpected.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/objectExpected.js new file mode 100644 index 000000000..9f7a81166 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/objectExpected.js @@ -0,0 +1,30 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + + +class ObjectExpectedError extends MongooseError { + /** + * Strict mode error constructor + * + * @param {string} type + * @param {string} value + * @api private + */ + constructor(path, val) { + const typeDescription = Array.isArray(val) ? 'array' : 'primitive value'; + super('Tried to set nested object field `' + path + + `\` to ${typeDescription} \`` + val + '`'); + this.path = path; + } +} + +Object.defineProperty(ObjectExpectedError.prototype, 'name', { + value: 'ObjectExpectedError' +}); + +module.exports = ObjectExpectedError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/objectParameter.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/objectParameter.js new file mode 100644 index 000000000..b3f5b8084 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/objectParameter.js @@ -0,0 +1,30 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + +class ObjectParameterError extends MongooseError { + /** + * Constructor for errors that happen when a parameter that's expected to be + * an object isn't an object + * + * @param {Any} value + * @param {String} paramName + * @param {String} fnName + * @api private + */ + constructor(value, paramName, fnName) { + super('Parameter "' + paramName + '" to ' + fnName + + '() must be an object, got "' + value.toString() + '" (type ' + typeof value + ')'); + } +} + + +Object.defineProperty(ObjectParameterError.prototype, 'name', { + value: 'ObjectParameterError' +}); + +module.exports = ObjectParameterError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/overwriteModel.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/overwriteModel.js new file mode 100644 index 000000000..8904e4e74 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/overwriteModel.js @@ -0,0 +1,30 @@ + +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + + +class OverwriteModelError extends MongooseError { + /** + * OverwriteModel Error constructor. + * @param {String} name + * @api private + */ + constructor(name) { + super('Cannot overwrite `' + name + '` model once compiled.'); + } +} + +Object.defineProperty(OverwriteModelError.prototype, 'name', { + value: 'OverwriteModelError' +}); + +/*! + * exports + */ + +module.exports = OverwriteModelError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/parallelSave.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/parallelSave.js new file mode 100644 index 000000000..57ac45823 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/parallelSave.js @@ -0,0 +1,30 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./mongooseError'); + +class ParallelSaveError extends MongooseError { + /** + * ParallelSave Error constructor. + * + * @param {Document} doc + * @api private + */ + constructor(doc) { + const msg = 'Can\'t save() the same doc multiple times in parallel. Document: '; + super(msg + doc._id); + } +} + +Object.defineProperty(ParallelSaveError.prototype, 'name', { + value: 'ParallelSaveError' +}); + +/*! + * exports + */ + +module.exports = ParallelSaveError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/parallelValidate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/parallelValidate.js new file mode 100644 index 000000000..477954dc8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/parallelValidate.js @@ -0,0 +1,31 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./mongooseError'); + + +class ParallelValidateError extends MongooseError { + /** + * ParallelValidate Error constructor. + * + * @param {Document} doc + * @api private + */ + constructor(doc) { + const msg = 'Can\'t validate() the same doc multiple times in parallel. Document: '; + super(msg + doc._id); + } +} + +Object.defineProperty(ParallelValidateError.prototype, 'name', { + value: 'ParallelValidateError' +}); + +/*! + * exports + */ + +module.exports = ParallelValidateError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/serverSelection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/serverSelection.js new file mode 100644 index 000000000..743eb96a3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/serverSelection.js @@ -0,0 +1,61 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); +const allServersUnknown = require('../helpers/topology/allServersUnknown'); +const isAtlas = require('../helpers/topology/isAtlas'); +const isSSLError = require('../helpers/topology/isSSLError'); + +/*! + * ignore + */ + +const atlasMessage = 'Could not connect to any servers in your MongoDB Atlas cluster. ' + + 'One common reason is that you\'re trying to access the database from ' + + 'an IP that isn\'t whitelisted. Make sure your current IP address is on your Atlas ' + + 'cluster\'s IP whitelist: https://www.mongodb.com/docs/atlas/security-whitelist/'; + +const sslMessage = 'Mongoose is connecting with SSL enabled, but the server is ' + + 'not accepting SSL connections. Please ensure that the MongoDB server you are ' + + 'connecting to is configured to accept SSL connections. Learn more: ' + + 'https://mongoosejs.com/docs/tutorials/ssl.html'; + +class MongooseServerSelectionError extends MongooseError { + /** + * MongooseServerSelectionError constructor + * + * @api private + */ + assimilateError(err) { + const reason = err.reason; + // Special message for a case that is likely due to IP whitelisting issues. + const isAtlasWhitelistError = isAtlas(reason) && + allServersUnknown(reason) && + err.message.indexOf('bad auth') === -1 && + err.message.indexOf('Authentication failed') === -1; + + if (isAtlasWhitelistError) { + this.message = atlasMessage; + } else if (isSSLError(reason)) { + this.message = sslMessage; + } else { + this.message = err.message; + } + for (const key in err) { + if (key !== 'name') { + this[key] = err[key]; + } + } + + return this; + } +} + +Object.defineProperty(MongooseServerSelectionError.prototype, 'name', { + value: 'MongooseServerSelectionError' +}); + +module.exports = MongooseServerSelectionError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/setOptionError.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/setOptionError.js new file mode 100644 index 000000000..b38a0d302 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/setOptionError.js @@ -0,0 +1,101 @@ +/*! + * Module requirements + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); +const util = require('util'); +const combinePathErrors = require('../helpers/error/combinePathErrors'); + +class SetOptionError extends MongooseError { + /** + * Mongoose.set Error + * + * @api private + * @inherits MongooseError + */ + constructor() { + super(''); + + this.errors = {}; + } + + /** + * Console.log helper + */ + toString() { + return combinePathErrors(this); + } + + /** + * inspect helper + * @api private + */ + inspect() { + return Object.assign(new Error(this.message), this); + } + + /** + * add message + * @param {String} key + * @param {String|Error} error + * @api private + */ + addError(key, error) { + if (error instanceof SetOptionError) { + const { errors } = error; + for (const optionKey of Object.keys(errors)) { + this.addError(optionKey, errors[optionKey]); + } + + return; + } + + this.errors[key] = error; + this.message = combinePathErrors(this); + } +} + + +if (util.inspect.custom) { + // Avoid Node deprecation warning DEP0079 + SetOptionError.prototype[util.inspect.custom] = SetOptionError.prototype.inspect; +} + +/** + * Helper for JSON.stringify + * Ensure `name` and `message` show up in toJSON output re: gh-9847 + * @api private + */ +Object.defineProperty(SetOptionError.prototype, 'toJSON', { + enumerable: false, + writable: false, + configurable: true, + value: function() { + return Object.assign({}, this, { name: this.name, message: this.message }); + } +}); + + +Object.defineProperty(SetOptionError.prototype, 'name', { + value: 'SetOptionError' +}); + +class SetOptionInnerError extends MongooseError { + /** + * Error for the "errors" array in "SetOptionError" with consistent message + * @param {String} key + */ + constructor(key) { + super(`"${key}" is not a valid option to set`); + } +} + +SetOptionError.SetOptionInnerError = SetOptionInnerError; + +/*! + * Module exports + */ + +module.exports = SetOptionError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/strict.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/strict.js new file mode 100644 index 000000000..6cf4cf911 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/strict.js @@ -0,0 +1,33 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + + +class StrictModeError extends MongooseError { + /** + * Strict mode error constructor + * + * @param {String} path + * @param {String} [msg] + * @param {Boolean} [immutable] + * @inherits MongooseError + * @api private + */ + constructor(path, msg, immutable) { + msg = msg || 'Field `' + path + '` is not in schema and strict ' + + 'mode is set to throw.'; + super(msg); + this.isImmutableError = !!immutable; + this.path = path; + } +} + +Object.defineProperty(StrictModeError.prototype, 'name', { + value: 'StrictModeError' +}); + +module.exports = StrictModeError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/strictPopulate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/strictPopulate.js new file mode 100644 index 000000000..288799897 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/strictPopulate.js @@ -0,0 +1,29 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + +class StrictPopulateError extends MongooseError { + /** + * Strict mode error constructor + * + * @param {String} path + * @param {String} [msg] + * @inherits MongooseError + * @api private + */ + constructor(path, msg) { + msg = msg || 'Cannot populate path `' + path + '` because it is not in your schema. ' + 'Set the `strictPopulate` option to false to override.'; + super(msg); + this.path = path; + } +} + +Object.defineProperty(StrictPopulateError.prototype, 'name', { + value: 'StrictPopulateError' +}); + +module.exports = StrictPopulateError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/syncIndexes.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/syncIndexes.js new file mode 100644 index 000000000..54f345ba7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/syncIndexes.js @@ -0,0 +1,30 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./mongooseError'); + +/** + * SyncIndexes Error constructor. + * + * @param {String} message + * @param {String} errorsMap + * @inherits MongooseError + * @api private + */ + +class SyncIndexesError extends MongooseError { + constructor(message, errorsMap) { + super(message); + this.errors = errorsMap; + } +} + +Object.defineProperty(SyncIndexesError.prototype, 'name', { + value: 'SyncIndexesError' +}); + + +module.exports = SyncIndexesError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/validation.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/validation.js new file mode 100644 index 000000000..5e222e980 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/validation.js @@ -0,0 +1,103 @@ +/*! + * Module requirements + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); +const getConstructorName = require('../helpers/getConstructorName'); +const util = require('util'); +const combinePathErrors = require('../helpers/error/combinePathErrors'); + +class ValidationError extends MongooseError { + /** + * Document Validation Error + * + * @api private + * @param {Document} [instance] + * @inherits MongooseError + */ + constructor(instance) { + let _message; + if (getConstructorName(instance) === 'model') { + _message = instance.constructor.modelName + ' validation failed'; + } else { + _message = 'Validation failed'; + } + + super(_message); + + this.errors = {}; + this._message = _message; + + if (instance) { + instance.$errors = this.errors; + } + } + + /** + * Console.log helper + */ + toString() { + return this.name + ': ' + combinePathErrors(this); + } + + /** + * inspect helper + * @api private + */ + inspect() { + return Object.assign(new Error(this.message), this); + } + + /** + * add message + * @param {String} path + * @param {String|Error} error + * @api private + */ + addError(path, error) { + if (error instanceof ValidationError) { + const { errors } = error; + for (const errorPath of Object.keys(errors)) { + this.addError(`${path}.${errorPath}`, errors[errorPath]); + } + + return; + } + + this.errors[path] = error; + this.message = this._message + ': ' + combinePathErrors(this); + } +} + + +if (util.inspect.custom) { + // Avoid Node deprecation warning DEP0079 + ValidationError.prototype[util.inspect.custom] = ValidationError.prototype.inspect; +} + +/** + * Helper for JSON.stringify + * Ensure `name` and `message` show up in toJSON output re: gh-9847 + * @api private + */ +Object.defineProperty(ValidationError.prototype, 'toJSON', { + enumerable: false, + writable: false, + configurable: true, + value: function() { + return Object.assign({}, this, { name: this.name, message: this.message }); + } +}); + + +Object.defineProperty(ValidationError.prototype, 'name', { + value: 'ValidationError' +}); + +/*! + * Module exports + */ + +module.exports = ValidationError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/validator.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/validator.js new file mode 100644 index 000000000..f7ee2ef47 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/validator.js @@ -0,0 +1,99 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('./mongooseError'); + + +class ValidatorError extends MongooseError { + /** + * Schema validator error + * + * @param {Object} properties + * @param {Document} doc + * @api private + */ + constructor(properties, doc) { + let msg = properties.message; + if (!msg) { + msg = MongooseError.messages.general.default; + } + + const message = formatMessage(msg, properties, doc); + super(message); + + properties = Object.assign({}, properties, { message: message }); + this.properties = properties; + this.kind = properties.type; + this.path = properties.path; + this.value = properties.value; + this.reason = properties.reason; + } + + /** + * toString helper + * TODO remove? This defaults to `${this.name}: ${this.message}` + * @api private + */ + toString() { + return this.message; + } + + /** + * Ensure `name` and `message` show up in toJSON output re: gh-9296 + * @api private + */ + + toJSON() { + return Object.assign({ name: this.name, message: this.message }, this); + } +} + + +Object.defineProperty(ValidatorError.prototype, 'name', { + value: 'ValidatorError' +}); + +/** + * The object used to define this validator. Not enumerable to hide + * it from `require('util').inspect()` output re: gh-3925 + * @api private + */ + +Object.defineProperty(ValidatorError.prototype, 'properties', { + enumerable: false, + writable: true, + value: null +}); + +// Exposed for testing +ValidatorError.prototype.formatMessage = formatMessage; + +/** + * Formats error messages + * @api private + */ + +function formatMessage(msg, properties, doc) { + if (typeof msg === 'function') { + return msg(properties, doc); + } + + const propertyNames = Object.keys(properties); + for (const propertyName of propertyNames) { + if (propertyName === 'message') { + continue; + } + msg = msg.replace('{' + propertyName.toUpperCase() + '}', properties[propertyName]); + } + + return msg; +} + +/*! + * exports + */ + +module.exports = ValidatorError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/error/version.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/version.js new file mode 100644 index 000000000..85f2921a5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/error/version.js @@ -0,0 +1,36 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./mongooseError'); + +class VersionError extends MongooseError { + /** + * Version Error constructor. + * + * @param {Document} doc + * @param {Number} currentVersion + * @param {Array} modifiedPaths + * @api private + */ + constructor(doc, currentVersion, modifiedPaths) { + const modifiedPathsStr = modifiedPaths.join(', '); + super('No matching document found for id "' + doc._id + + '" version ' + currentVersion + ' modifiedPaths "' + modifiedPathsStr + '"'); + this.version = currentVersion; + this.modifiedPaths = modifiedPaths; + } +} + + +Object.defineProperty(VersionError.prototype, 'name', { + value: 'VersionError' +}); + +/*! + * exports + */ + +module.exports = VersionError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/aggregate/prepareDiscriminatorPipeline.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/aggregate/prepareDiscriminatorPipeline.js new file mode 100644 index 000000000..f720cfb6c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/aggregate/prepareDiscriminatorPipeline.js @@ -0,0 +1,39 @@ +'use strict'; + +module.exports = function prepareDiscriminatorPipeline(pipeline, schema, prefix) { + const discriminatorMapping = schema && schema.discriminatorMapping; + prefix = prefix || ''; + + if (discriminatorMapping && !discriminatorMapping.isRoot) { + const originalPipeline = pipeline; + const filterKey = (prefix.length > 0 ? prefix + '.' : prefix) + discriminatorMapping.key; + const discriminatorValue = discriminatorMapping.value; + + // If the first pipeline stage is a match and it doesn't specify a `__t` + // key, add the discriminator key to it. This allows for potential + // aggregation query optimizations not to be disturbed by this feature. + if (originalPipeline[0] != null && + originalPipeline[0].$match && + (originalPipeline[0].$match[filterKey] === undefined || originalPipeline[0].$match[filterKey] === discriminatorValue)) { + originalPipeline[0].$match[filterKey] = discriminatorValue; + // `originalPipeline` is a ref, so there's no need for + // aggregate._pipeline = originalPipeline + } else if (originalPipeline[0] != null && originalPipeline[0].$geoNear) { + originalPipeline[0].$geoNear.query = + originalPipeline[0].$geoNear.query || {}; + originalPipeline[0].$geoNear.query[filterKey] = discriminatorValue; + } else if (originalPipeline[0] != null && originalPipeline[0].$search) { + if (originalPipeline[1] && originalPipeline[1].$match != null) { + originalPipeline[1].$match[filterKey] = originalPipeline[1].$match[filterKey] || discriminatorValue; + } else { + const match = {}; + match[filterKey] = discriminatorValue; + originalPipeline.splice(1, 0, { $match: match }); + } + } else { + const match = {}; + match[filterKey] = discriminatorValue; + originalPipeline.unshift({ $match: match }); + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/aggregate/stringifyFunctionOperators.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/aggregate/stringifyFunctionOperators.js new file mode 100644 index 000000000..1f5d1e395 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/aggregate/stringifyFunctionOperators.js @@ -0,0 +1,50 @@ +'use strict'; + +module.exports = function stringifyFunctionOperators(pipeline) { + if (!Array.isArray(pipeline)) { + return; + } + + for (const stage of pipeline) { + if (stage == null) { + continue; + } + + const canHaveAccumulator = stage.$group || stage.$bucket || stage.$bucketAuto; + if (canHaveAccumulator != null) { + for (const key of Object.keys(canHaveAccumulator)) { + handleAccumulator(canHaveAccumulator[key]); + } + } + + const stageType = Object.keys(stage)[0]; + if (stageType && typeof stage[stageType] === 'object') { + const stageOptions = stage[stageType]; + for (const key of Object.keys(stageOptions)) { + if (stageOptions[key] != null && + stageOptions[key].$function != null && + typeof stageOptions[key].$function.body === 'function') { + stageOptions[key].$function.body = stageOptions[key].$function.body.toString(); + } + } + } + + if (stage.$facet != null) { + for (const key of Object.keys(stage.$facet)) { + stringifyFunctionOperators(stage.$facet[key]); + } + } + } +}; + +function handleAccumulator(operator) { + if (operator == null || operator.$accumulator == null) { + return; + } + + for (const key of ['init', 'accumulate', 'merge', 'finalize']) { + if (typeof operator.$accumulator[key] === 'function') { + operator.$accumulator[key] = String(operator.$accumulator[key]); + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/arrayDepth.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/arrayDepth.js new file mode 100644 index 000000000..16b92c13a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/arrayDepth.js @@ -0,0 +1,33 @@ +'use strict'; + +module.exports = arrayDepth; + +function arrayDepth(arr) { + if (!Array.isArray(arr)) { + return { min: 0, max: 0, containsNonArrayItem: true }; + } + if (arr.length === 0) { + return { min: 1, max: 1, containsNonArrayItem: false }; + } + if (arr.length === 1 && !Array.isArray(arr[0])) { + return { min: 1, max: 1, containsNonArrayItem: false }; + } + + const res = arrayDepth(arr[0]); + + for (let i = 1; i < arr.length; ++i) { + const _res = arrayDepth(arr[i]); + if (_res.min < res.min) { + res.min = _res.min; + } + if (_res.max > res.max) { + res.max = _res.max; + } + res.containsNonArrayItem = res.containsNonArrayItem || _res.containsNonArrayItem; + } + + res.min = res.min + 1; + res.max = res.max + 1; + + return res; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/clone.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/clone.js new file mode 100644 index 000000000..fafb2f306 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/clone.js @@ -0,0 +1,193 @@ +'use strict'; + +const Decimal = require('../types/decimal128'); +const ObjectId = require('../types/objectid'); +const specialProperties = require('./specialProperties'); +const isMongooseObject = require('./isMongooseObject'); +const getFunctionName = require('./getFunctionName'); +const isBsonType = require('./isBsonType'); +const isMongooseArray = require('../types/array/isMongooseArray').isMongooseArray; +const isObject = require('./isObject'); +const isPOJO = require('./isPOJO'); +const symbols = require('./symbols'); +const trustedSymbol = require('./query/trusted').trustedSymbol; + +/** + * Object clone with Mongoose natives support. + * + * If options.minimize is true, creates a minimal data object. Empty objects and undefined values will not be cloned. This makes the data payload sent to MongoDB as small as possible. + * + * Functions are never cloned. + * + * @param {Object} obj the object to clone + * @param {Object} options + * @param {Boolean} isArrayChild true if cloning immediately underneath an array. Special case for minimize. + * @return {Object} the cloned object + * @api private + */ + +function clone(obj, options, isArrayChild) { + if (obj == null) { + return obj; + } + + if (Array.isArray(obj)) { + return cloneArray(isMongooseArray(obj) ? obj.__array : obj, options); + } + + if (isMongooseObject(obj)) { + if (options) { + // Single nested subdocs should apply getters later in `applyGetters()` + // when calling `toObject()`. See gh-7442, gh-8295 + if (options._skipSingleNestedGetters && obj.$isSingleNested) { + options._calledWithOptions = Object.assign({}, options._calledWithOptions || {}, { getters: false }); + } + if (options.retainDocuments && obj.$__ != null) { + const clonedDoc = obj.$clone(); + if (obj.__index != null) { + clonedDoc.__index = obj.__index; + } + if (obj.__parentArray != null) { + clonedDoc.__parentArray = obj.__parentArray; + } + clonedDoc.$__parent = obj.$__parent; + return clonedDoc; + } + } + const isSingleNested = obj.$isSingleNested; + + if (isPOJO(obj) && obj.$__ != null && obj._doc != null) { + return obj._doc; + } + + let ret; + if (options && options.json && typeof obj.toJSON === 'function') { + ret = obj.toJSON(options); + } else { + ret = obj.toObject(options); + } + + if (options && options.minimize && !obj.constructor.$__required && isSingleNested && Object.keys(ret).length === 0) { + return undefined; + } + + return ret; + } + + const objConstructor = obj.constructor; + + if (objConstructor) { + switch (getFunctionName(objConstructor)) { + case 'Object': + return cloneObject(obj, options, isArrayChild); + case 'Date': + return new objConstructor(+obj); + case 'RegExp': + return cloneRegExp(obj); + default: + // ignore + break; + } + } + + if (isBsonType(obj, 'ObjectId')) { + if (options && options.flattenObjectIds) { + return obj.toJSON(); + } + return new ObjectId(obj.id); + } + + if (isBsonType(obj, 'Decimal128')) { + if (options && options.flattenDecimals) { + return obj.toJSON(); + } + return Decimal.fromString(obj.toString()); + } + + // object created with Object.create(null) + if (!objConstructor && isObject(obj)) { + return cloneObject(obj, options, isArrayChild); + } + + if (typeof obj === 'object' && obj[symbols.schemaTypeSymbol]) { + return obj.clone(); + } + + // If we're cloning this object to go into a MongoDB command, + // and there's a `toBSON()` function, assume this object will be + // stored as a primitive in MongoDB and doesn't need to be cloned. + if (options && options.bson && typeof obj.toBSON === 'function') { + return obj; + } + + if (typeof obj.valueOf === 'function') { + return obj.valueOf(); + } + + return cloneObject(obj, options, isArrayChild); +} +module.exports = clone; + +/*! + * ignore + */ + +function cloneObject(obj, options, isArrayChild) { + const minimize = options && options.minimize; + const omitUndefined = options && options.omitUndefined; + const seen = options && options._seen; + const ret = {}; + let hasKeys; + + if (seen && seen.has(obj)) { + return seen.get(obj); + } else if (seen) { + seen.set(obj, ret); + } + if (trustedSymbol in obj) { + ret[trustedSymbol] = obj[trustedSymbol]; + } + + let i = 0; + let key = ''; + const keys = Object.keys(obj); + const len = keys.length; + + for (i = 0; i < len; ++i) { + if (specialProperties.has(key = keys[i])) { + continue; + } + + // Don't pass `isArrayChild` down + const val = clone(obj[key], options, false); + + if ((minimize === false || omitUndefined) && typeof val === 'undefined') { + delete ret[key]; + } else if (minimize !== true || (typeof val !== 'undefined')) { + hasKeys || (hasKeys = true); + ret[key] = val; + } + } + + return minimize && !isArrayChild ? hasKeys && ret : ret; +} + +function cloneArray(arr, options) { + let i = 0; + const len = arr.length; + const ret = new Array(len); + for (i = 0; i < len; ++i) { + ret[i] = clone(arr[i], options, true); + } + + return ret; +} + +function cloneRegExp(regexp) { + const ret = new RegExp(regexp.source, regexp.flags); + + if (ret.lastIndex !== regexp.lastIndex) { + ret.lastIndex = regexp.lastIndex; + } + return ret; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/common.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/common.js new file mode 100644 index 000000000..5a1bee1c3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/common.js @@ -0,0 +1,127 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const Binary = require('bson').Binary; +const isBsonType = require('./isBsonType'); +const isMongooseObject = require('./isMongooseObject'); +const MongooseError = require('../error'); +const util = require('util'); + +exports.flatten = flatten; +exports.modifiedPaths = modifiedPaths; + +/*! + * ignore + */ + +function flatten(update, path, options, schema) { + let keys; + if (update && isMongooseObject(update) && !Buffer.isBuffer(update)) { + keys = Object.keys(update.toObject({ transform: false, virtuals: false }) || {}); + } else { + keys = Object.keys(update || {}); + } + + const numKeys = keys.length; + const result = {}; + path = path ? path + '.' : ''; + + for (let i = 0; i < numKeys; ++i) { + const key = keys[i]; + const val = update[key]; + result[path + key] = val; + + // Avoid going into mixed paths if schema is specified + const keySchema = schema && schema.path && schema.path(path + key); + const isNested = schema && schema.nested && schema.nested[path + key]; + if (keySchema && keySchema.instance === 'Mixed') continue; + + if (shouldFlatten(val)) { + if (options && options.skipArrays && Array.isArray(val)) { + continue; + } + const flat = flatten(val, path + key, options, schema); + for (const k in flat) { + result[k] = flat[k]; + } + if (Array.isArray(val)) { + result[path + key] = val; + } + } + + if (isNested) { + const paths = Object.keys(schema.paths); + for (const p of paths) { + if (p.startsWith(path + key + '.') && !result.hasOwnProperty(p)) { + result[p] = void 0; + } + } + } + } + + return result; +} + +/*! + * ignore + */ + +function modifiedPaths(update, path, result, recursion = null) { + if (update == null || typeof update !== 'object') { + return; + } + + if (recursion == null) { + recursion = { + raw: { update, path }, + trace: new WeakSet() + }; + } + + if (recursion.trace.has(update)) { + throw new MongooseError(`a circular reference in the update value, updateValue: +${util.inspect(recursion.raw.update, { showHidden: false, depth: 1 })} +updatePath: '${recursion.raw.path}'`); + } + recursion.trace.add(update); + + const keys = Object.keys(update || {}); + const numKeys = keys.length; + result = result || {}; + path = path ? path + '.' : ''; + + for (let i = 0; i < numKeys; ++i) { + const key = keys[i]; + let val = update[key]; + + const _path = path + key; + result[_path] = true; + if (!Buffer.isBuffer(val) && isMongooseObject(val)) { + val = val.toObject({ transform: false, virtuals: false }); + } + if (shouldFlatten(val)) { + modifiedPaths(val, path + key, result, recursion); + } + } + recursion.trace.delete(update); + + return result; +} + +/*! + * ignore + */ + +function shouldFlatten(val) { + return val && + typeof val === 'object' && + !(val instanceof Date) && + !isBsonType(val, 'ObjectId') && + (!Array.isArray(val) || val.length !== 0) && + !(val instanceof Buffer) && + !isBsonType(val, 'Decimal128') && + !(val instanceof Binary); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/cursor/eachAsync.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/cursor/eachAsync.js new file mode 100644 index 000000000..c52c6d566 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/cursor/eachAsync.js @@ -0,0 +1,225 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const EachAsyncMultiError = require('../../error/eachAsyncMultiError'); +const immediate = require('../immediate'); + +/** + * Execute `fn` for every document in the cursor. If `fn` returns a promise, + * will wait for the promise to resolve before iterating on to the next one. + * Returns a promise that resolves when done. + * + * @param {Function} next the thunk to call to get the next document + * @param {Function} fn + * @param {Object} options + * @param {Number} [options.batchSize=null] if set, Mongoose will call `fn` with an array of at most `batchSize` documents, instead of a single document + * @param {Number} [options.parallel=1] maximum number of `fn` calls that Mongoose will run in parallel + * @param {AbortSignal} [options.signal] allow cancelling this eachAsync(). Once the abort signal is fired, `eachAsync()` will immediately fulfill the returned promise (or call the callback) and not fetch any more documents. + * @return {Promise} + * @api public + * @method eachAsync + */ + +module.exports = async function eachAsync(next, fn, options) { + const parallel = options.parallel || 1; + const batchSize = options.batchSize; + const signal = options.signal; + const continueOnError = options.continueOnError; + const aggregatedErrors = []; + const enqueue = asyncQueue(); + + let aborted = false; + + return new Promise((resolve, reject) => { + if (signal != null) { + if (signal.aborted) { + return resolve(null); + } + + signal.addEventListener('abort', () => { + aborted = true; + return resolve(null); + }, { once: true }); + } + + if (batchSize != null) { + if (typeof batchSize !== 'number') { + throw new TypeError('batchSize must be a number'); + } else if (!Number.isInteger(batchSize)) { + throw new TypeError('batchSize must be an integer'); + } else if (batchSize < 1) { + throw new TypeError('batchSize must be at least 1'); + } + } + + iterate((err, res) => { + if (err != null) { + return reject(err); + } + resolve(res); + }); + }); + + function iterate(finalCallback) { + let handleResultsInProgress = 0; + let currentDocumentIndex = 0; + + let error = null; + for (let i = 0; i < parallel; ++i) { + enqueue(createFetch()); + } + + function createFetch() { + let documentsBatch = []; + let drained = false; + + return fetch; + + function fetch(done) { + if (drained || aborted) { + return done(); + } else if (error) { + return done(); + } + + next(function(err, doc) { + if (error != null) { + return done(); + } + if (err != null) { + if (err.name === 'MongoCursorExhaustedError') { + // We may end up calling `next()` multiple times on an exhausted + // cursor, which leads to an error. In case cursor is exhausted, + // just treat it as if the cursor returned no document, which is + // how a cursor indicates it is exhausted. + doc = null; + } else if (continueOnError) { + aggregatedErrors.push(err); + } else { + error = err; + finalCallback(err); + return done(); + } + } + if (doc == null) { + drained = true; + if (handleResultsInProgress <= 0) { + const finalErr = continueOnError ? + createEachAsyncMultiError(aggregatedErrors) : + error; + + finalCallback(finalErr); + } else if (batchSize && documentsBatch.length) { + handleNextResult(documentsBatch, currentDocumentIndex++, handleNextResultCallBack); + } + return done(); + } + + ++handleResultsInProgress; + + // Kick off the subsequent `next()` before handling the result, but + // make sure we know that we still have a result to handle re: #8422 + immediate(() => done()); + + if (batchSize) { + documentsBatch.push(doc); + } + + // If the current documents size is less than the provided batch size don't process the documents yet + if (batchSize && documentsBatch.length !== batchSize) { + immediate(() => enqueue(fetch)); + return; + } + + const docsToProcess = batchSize ? documentsBatch : doc; + + function handleNextResultCallBack(err) { + if (batchSize) { + handleResultsInProgress -= documentsBatch.length; + documentsBatch = []; + } else { + --handleResultsInProgress; + } + if (err != null) { + if (continueOnError) { + aggregatedErrors.push(err); + } else { + error = err; + return finalCallback(err); + } + } + if ((drained || aborted) && handleResultsInProgress <= 0) { + const finalErr = continueOnError ? + createEachAsyncMultiError(aggregatedErrors) : + error; + return finalCallback(finalErr); + } + + immediate(() => enqueue(fetch)); + } + + handleNextResult(docsToProcess, currentDocumentIndex++, handleNextResultCallBack); + }); + } + } + } + + function handleNextResult(doc, i, callback) { + let maybePromise; + try { + maybePromise = fn(doc, i); + } catch (err) { + return callback(err); + } + if (maybePromise && typeof maybePromise.then === 'function') { + maybePromise.then( + function() { callback(null); }, + function(error) { + callback(error || new Error('`eachAsync()` promise rejected without error')); + }); + } else { + callback(null); + } + } +}; + +// `next()` can only execute one at a time, so make sure we always execute +// `next()` in series, while still allowing multiple `fn()` instances to run +// in parallel. +function asyncQueue() { + const _queue = []; + let inProgress = null; + let id = 0; + + return function enqueue(fn) { + if ( + inProgress === null && + _queue.length === 0 + ) { + inProgress = id++; + return fn(_step); + } + _queue.push(fn); + }; + + function _step() { + if (_queue.length !== 0) { + inProgress = id++; + const fn = _queue.shift(); + fn(_step); + } else { + inProgress = null; + } + } +} + +function createEachAsyncMultiError(aggregatedErrors) { + if (aggregatedErrors.length === 0) { + return null; + } + + return new EachAsyncMultiError(aggregatedErrors); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/applyEmbeddedDiscriminators.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/applyEmbeddedDiscriminators.js new file mode 100644 index 000000000..01593a9b3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/applyEmbeddedDiscriminators.js @@ -0,0 +1,36 @@ +'use strict'; + +module.exports = applyEmbeddedDiscriminators; + +function applyEmbeddedDiscriminators(schema, seen = new WeakSet(), overwriteExisting = false) { + if (seen.has(schema)) { + return; + } + seen.add(schema); + for (const path of Object.keys(schema.paths)) { + const schemaType = schema.paths[path]; + if (!schemaType.schema) { + continue; + } + applyEmbeddedDiscriminators(schemaType.schema, seen); + if (!schemaType.schema._applyDiscriminators) { + continue; + } + if (schemaType._appliedDiscriminators && !overwriteExisting) { + continue; + } + for (const discriminatorKey of schemaType.schema._applyDiscriminators.keys()) { + const { + schema: discriminatorSchema, + options + } = schemaType.schema._applyDiscriminators.get(discriminatorKey); + applyEmbeddedDiscriminators(discriminatorSchema, seen); + schemaType.discriminator( + discriminatorKey, + discriminatorSchema, + overwriteExisting ? { ...options, overwriteExisting: true } : options + ); + } + schemaType._appliedDiscriminators = true; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/areDiscriminatorValuesEqual.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/areDiscriminatorValuesEqual.js new file mode 100644 index 000000000..1b81a48f2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/areDiscriminatorValuesEqual.js @@ -0,0 +1,16 @@ +'use strict'; + +const isBsonType = require('../isBsonType'); + +module.exports = function areDiscriminatorValuesEqual(a, b) { + if (typeof a === 'string' && typeof b === 'string') { + return a === b; + } + if (typeof a === 'number' && typeof b === 'number') { + return a === b; + } + if (isBsonType(a, 'ObjectId') && isBsonType(b, 'ObjectId')) { + return a.toString() === b.toString(); + } + return false; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection.js new file mode 100644 index 000000000..4eb56de4f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection.js @@ -0,0 +1,12 @@ +'use strict'; + +module.exports = function checkEmbeddedDiscriminatorKeyProjection(userProjection, path, schema, selected, addedPaths) { + const userProjectedInPath = Object.keys(userProjection). + reduce((cur, key) => cur || key.startsWith(path + '.'), false); + const _discriminatorKey = path + '.' + schema.options.discriminatorKey; + if (!userProjectedInPath && + addedPaths.length === 1 && + addedPaths[0] === _discriminatorKey) { + selected.splice(selected.indexOf(_discriminatorKey), 1); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getConstructor.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getConstructor.js new file mode 100644 index 000000000..17583e271 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getConstructor.js @@ -0,0 +1,29 @@ +'use strict'; + +const getDiscriminatorByValue = require('./getDiscriminatorByValue'); + +/** + * Find the correct constructor, taking into account discriminators + * @api private + */ + +module.exports = function getConstructor(Constructor, value, defaultDiscriminatorValue) { + const discriminatorKey = Constructor.schema.options.discriminatorKey; + let discriminatorValue = (value != null && value[discriminatorKey]); + if (discriminatorValue == null) { + discriminatorValue = defaultDiscriminatorValue; + } + if (Constructor.discriminators && + discriminatorValue != null) { + if (Constructor.discriminators[discriminatorValue]) { + Constructor = Constructor.discriminators[discriminatorValue]; + } else { + const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, discriminatorValue); + if (constructorByValue) { + Constructor = constructorByValue; + } + } + } + + return Constructor; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getDiscriminatorByValue.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getDiscriminatorByValue.js new file mode 100644 index 000000000..af7605b39 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getDiscriminatorByValue.js @@ -0,0 +1,28 @@ +'use strict'; + +const areDiscriminatorValuesEqual = require('./areDiscriminatorValuesEqual'); + +/** + * returns discriminator by discriminatorMapping.value + * + * @param {Object} discriminators + * @param {string} value + * @api private + */ + +module.exports = function getDiscriminatorByValue(discriminators, value) { + if (discriminators == null) { + return null; + } + for (const name of Object.keys(discriminators)) { + const it = discriminators[name]; + if ( + it.schema && + it.schema.discriminatorMapping && + areDiscriminatorValuesEqual(it.schema.discriminatorMapping.value, value) + ) { + return it; + } + } + return null; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getSchemaDiscriminatorByValue.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getSchemaDiscriminatorByValue.js new file mode 100644 index 000000000..a04e17c1b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/getSchemaDiscriminatorByValue.js @@ -0,0 +1,27 @@ +'use strict'; + +const areDiscriminatorValuesEqual = require('./areDiscriminatorValuesEqual'); + +/** + * returns discriminator by discriminatorMapping.value + * + * @param {Schema} schema + * @param {string} value + * @api private + */ + +module.exports = function getSchemaDiscriminatorByValue(schema, value) { + if (schema == null || schema.discriminators == null) { + return null; + } + for (const key of Object.keys(schema.discriminators)) { + const discriminatorSchema = schema.discriminators[key]; + if (discriminatorSchema.discriminatorMapping == null) { + continue; + } + if (areDiscriminatorValuesEqual(discriminatorSchema.discriminatorMapping.value, value)) { + return discriminatorSchema; + } + } + return null; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/mergeDiscriminatorSchema.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/mergeDiscriminatorSchema.js new file mode 100644 index 000000000..b48d5c4db --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/discriminator/mergeDiscriminatorSchema.js @@ -0,0 +1,81 @@ +'use strict'; +const schemaMerge = require('../schema/merge'); +const specialProperties = require('../../helpers/specialProperties'); +const isBsonType = require('../../helpers/isBsonType'); +const ObjectId = require('../../types/objectid'); +const isObject = require('../../helpers/isObject'); +/** + * Merges `from` into `to` without overwriting existing properties. + * + * @param {Object} to + * @param {Object} from + * @param {String} [path] + * @api private + */ + +module.exports = function mergeDiscriminatorSchema(to, from, path, seen) { + const keys = Object.keys(from); + let i = 0; + const len = keys.length; + let key; + + path = path || ''; + seen = seen || new WeakSet(); + + if (seen.has(from)) { + return; + } + seen.add(from); + + while (i < len) { + key = keys[i++]; + if (!path) { + if (key === 'discriminators' || + key === 'base' || + key === '_applyDiscriminators' || + key === '_userProvidedOptions' || + key === 'options' || + key === 'tree') { + continue; + } + } + if (path === 'tree' && from != null && from.instanceOfSchema) { + continue; + } + if (specialProperties.has(key)) { + continue; + } + if (to[key] == null) { + to[key] = from[key]; + } else if (isObject(from[key])) { + if (!isObject(to[key])) { + to[key] = {}; + } + if (from[key] != null) { + // Skip merging schemas if we're creating a discriminator schema and + // base schema has a given path as a single nested but discriminator schema + // has the path as a document array, or vice versa (gh-9534) + if ((from[key].$isSingleNested && to[key].$isMongooseDocumentArray) || + (from[key].$isMongooseDocumentArray && to[key].$isSingleNested) || + (from[key].$isMongooseDocumentArrayElement && to[key].$isMongooseDocumentArrayElement)) { + continue; + } else if (from[key].instanceOfSchema) { + if (to[key].instanceOfSchema) { + schemaMerge(to[key], from[key].clone(), true); + } else { + to[key] = from[key].clone(); + } + continue; + } else if (isBsonType(from[key], 'ObjectId')) { + to[key] = new ObjectId(from[key]); + continue; + } + } + mergeDiscriminatorSchema(to[key], from[key], path ? path + '.' + key : key, seen); + } + } + + if (from != null && from.instanceOfSchema) { + to.tree = Object.assign({}, from.tree, to.tree); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/applyDefaults.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/applyDefaults.js new file mode 100644 index 000000000..631d5151e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/applyDefaults.js @@ -0,0 +1,128 @@ +'use strict'; + +const isNestedProjection = require('../projection/isNestedProjection'); + +module.exports = function applyDefaults(doc, fields, exclude, hasIncludedChildren, isBeforeSetters, pathsToSkip) { + const paths = Object.keys(doc.$__schema.paths); + const plen = paths.length; + + for (let i = 0; i < plen; ++i) { + let def; + let curPath = ''; + const p = paths[i]; + + if (p === '_id' && doc.$__.skipId) { + continue; + } + + const type = doc.$__schema.paths[p]; + const path = type.splitPath(); + const len = path.length; + let included = false; + let doc_ = doc._doc; + for (let j = 0; j < len; ++j) { + if (doc_ == null) { + break; + } + + const piece = path[j]; + curPath += (!curPath.length ? '' : '.') + piece; + + if (exclude === true) { + if (curPath in fields) { + break; + } + } else if (exclude === false && fields && !included) { + const hasSubpaths = type.$isSingleNested || type.$isMongooseDocumentArray; + if ((curPath in fields && !isNestedProjection(fields[curPath])) || (j === len - 1 && hasSubpaths && hasIncludedChildren != null && hasIncludedChildren[curPath])) { + included = true; + } else if (hasIncludedChildren != null && !hasIncludedChildren[curPath]) { + break; + } + } + + if (j === len - 1) { + if (doc_[piece] !== void 0) { + break; + } + + if (isBeforeSetters != null) { + if (typeof type.defaultValue === 'function') { + if (!type.defaultValue.$runBeforeSetters && isBeforeSetters) { + break; + } + if (type.defaultValue.$runBeforeSetters && !isBeforeSetters) { + break; + } + } else if (!isBeforeSetters) { + // Non-function defaults should always run **before** setters + continue; + } + } + + if (pathsToSkip && pathsToSkip[curPath]) { + break; + } + + if (fields && exclude !== null) { + if (exclude === true) { + // apply defaults to all non-excluded fields + if (p in fields) { + continue; + } + + try { + def = type.getDefault(doc, false); + } catch (err) { + doc.invalidate(p, err); + break; + } + + if (typeof def !== 'undefined') { + doc_[piece] = def; + applyChangeTracking(doc, p); + } + } else if (included) { + // selected field + try { + def = type.getDefault(doc, false); + } catch (err) { + doc.invalidate(p, err); + break; + } + + if (typeof def !== 'undefined') { + doc_[piece] = def; + applyChangeTracking(doc, p); + } + } + } else { + try { + def = type.getDefault(doc, false); + } catch (err) { + doc.invalidate(p, err); + break; + } + + if (typeof def !== 'undefined') { + doc_[piece] = def; + applyChangeTracking(doc, p); + } + } + } else { + doc_ = doc_[piece]; + } + } + } +}; + +/*! + * ignore + */ + +function applyChangeTracking(doc, fullPath) { + doc.$__.activePaths.default(fullPath); + if (doc.$isSubdocument && doc.$isSingleNested && doc.$parent() != null) { + doc.$parent().$__.activePaths.default(doc.$__pathRelativeToParent(fullPath)); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/cleanModifiedSubpaths.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/cleanModifiedSubpaths.js new file mode 100644 index 000000000..43c225e4f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/cleanModifiedSubpaths.js @@ -0,0 +1,35 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function cleanModifiedSubpaths(doc, path, options) { + options = options || {}; + const skipDocArrays = options.skipDocArrays; + + let deleted = 0; + if (!doc) { + return deleted; + } + + for (const modifiedPath of Object.keys(doc.$__.activePaths.getStatePaths('modify'))) { + if (skipDocArrays) { + const schemaType = doc.$__schema.path(modifiedPath); + if (schemaType && schemaType.$isMongooseDocumentArray) { + continue; + } + } + if (modifiedPath.startsWith(path + '.')) { + doc.$__.activePaths.clearPath(modifiedPath); + ++deleted; + + if (doc.$isSubdocument) { + const owner = doc.ownerDocument(); + const fullPath = doc.$__fullPath(modifiedPath); + owner.$__.activePaths.clearPath(fullPath); + } + } + } + return deleted; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/compile.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/compile.js new file mode 100644 index 000000000..51721e7a4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/compile.js @@ -0,0 +1,238 @@ +'use strict'; + +const clone = require('../../helpers/clone'); +const documentSchemaSymbol = require('../../helpers/symbols').documentSchemaSymbol; +const internalToObjectOptions = require('../../options').internalToObjectOptions; +const utils = require('../../utils'); + +let Document; +const getSymbol = require('../../helpers/symbols').getSymbol; +const scopeSymbol = require('../../helpers/symbols').scopeSymbol; + +const isPOJO = utils.isPOJO; + +/*! + * exports + */ + +exports.compile = compile; +exports.defineKey = defineKey; + +const _isEmptyOptions = Object.freeze({ + minimize: true, + virtuals: false, + getters: false, + transform: false +}); + +const noDottedPathGetOptions = Object.freeze({ + noDottedPath: true +}); + +/** + * Compiles schemas. + * @param {Object} tree + * @param {Any} proto + * @param {String} prefix + * @param {Object} options + * @api private + */ + +function compile(tree, proto, prefix, options) { + Document = Document || require('../../document'); + const typeKey = options.typeKey; + + for (const key of Object.keys(tree)) { + const limb = tree[key]; + + const hasSubprops = isPOJO(limb) && + Object.keys(limb).length > 0 && + (!limb[typeKey] || (typeKey === 'type' && isPOJO(limb.type) && limb.type.type)); + const subprops = hasSubprops ? limb : null; + + defineKey({ prop: key, subprops: subprops, prototype: proto, prefix: prefix, options: options }); + } +} + +/** + * Defines the accessor named prop on the incoming prototype. + * @param {Object} options + * @param {String} options.prop + * @param {Boolean} options.subprops + * @param {Any} options.prototype + * @param {String} [options.prefix] + * @param {Object} options.options + * @api private + */ + +function defineKey({ prop, subprops, prototype, prefix, options }) { + Document = Document || require('../../document'); + const path = (prefix ? prefix + '.' : '') + prop; + prefix = prefix || ''; + const useGetOptions = prefix ? Object.freeze({}) : noDottedPathGetOptions; + + if (subprops) { + Object.defineProperty(prototype, prop, { + enumerable: true, + configurable: true, + get: function() { + const _this = this; + if (!this.$__.getters) { + this.$__.getters = {}; + } + + if (!this.$__.getters[path]) { + const nested = Object.create(Document.prototype, getOwnPropertyDescriptors(this)); + + // save scope for nested getters/setters + if (!prefix) { + nested.$__[scopeSymbol] = this; + } + nested.$__.nestedPath = path; + + Object.defineProperty(nested, 'schema', { + enumerable: false, + configurable: true, + writable: false, + value: prototype.schema + }); + + Object.defineProperty(nested, '$__schema', { + enumerable: false, + configurable: true, + writable: false, + value: prototype.schema + }); + + Object.defineProperty(nested, documentSchemaSymbol, { + enumerable: false, + configurable: true, + writable: false, + value: prototype.schema + }); + + Object.defineProperty(nested, 'toObject', { + enumerable: false, + configurable: true, + writable: false, + value: function() { + return clone(_this.get(path, null, { + virtuals: this && + this.schema && + this.schema.options && + this.schema.options.toObject && + this.schema.options.toObject.virtuals || null + })); + } + }); + + Object.defineProperty(nested, '$__get', { + enumerable: false, + configurable: true, + writable: false, + value: function() { + return _this.get(path, null, { + virtuals: this && this.schema && this.schema.options && this.schema.options.toObject && this.schema.options.toObject.virtuals || null + }); + } + }); + + Object.defineProperty(nested, 'toJSON', { + enumerable: false, + configurable: true, + writable: false, + value: function() { + return _this.get(path, null, { + virtuals: this && this.schema && this.schema.options && this.schema.options.toJSON && this.schema.options.toJSON.virtuals || null + }); + } + }); + + Object.defineProperty(nested, '$__isNested', { + enumerable: false, + configurable: true, + writable: false, + value: true + }); + + Object.defineProperty(nested, '$isEmpty', { + enumerable: false, + configurable: true, + writable: false, + value: function() { + return Object.keys(this.get(path, null, _isEmptyOptions) || {}).length === 0; + } + }); + + Object.defineProperty(nested, '$__parent', { + enumerable: false, + configurable: true, + writable: false, + value: this + }); + + compile(subprops, nested, path, options); + this.$__.getters[path] = nested; + } + + return this.$__.getters[path]; + }, + set: function(v) { + if (v != null && v.$__isNested) { + // Convert top-level to POJO, but leave subdocs hydrated so `$set` + // can handle them. See gh-9293. + v = v.$__get(); + } else if (v instanceof Document && !v.$__isNested) { + v = v.$toObject(internalToObjectOptions); + } + const doc = this.$__[scopeSymbol] || this; + doc.$set(path, v); + } + }); + } else { + Object.defineProperty(prototype, prop, { + enumerable: true, + configurable: true, + get: function() { + return this[getSymbol].call( + this.$__[scopeSymbol] || this, + path, + null, + useGetOptions + ); + }, + set: function(v) { + this.$set.call(this.$__[scopeSymbol] || this, path, v); + } + }); + } +} + +// gets descriptors for all properties of `object` +// makes all properties non-enumerable to match previous behavior to #2211 +function getOwnPropertyDescriptors(object) { + const result = {}; + + Object.getOwnPropertyNames(object).forEach(function(key) { + const skip = [ + 'isNew', + '$__', + '$errors', + 'errors', + '_doc', + '$locals', + '$op', + '__parentArray', + '__index', + '$isDocumentArrayElement' + ].indexOf(key) === -1; + if (skip) { + return; + } + + result[key] = Object.getOwnPropertyDescriptor(object, key); + result[key].enumerable = false; + }); + + return result; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/getDeepestSubdocumentForPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/getDeepestSubdocumentForPath.js new file mode 100644 index 000000000..994bb3088 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/getDeepestSubdocumentForPath.js @@ -0,0 +1,38 @@ +'use strict'; + +/** + * Find the deepest subdocument along a given path to ensure setter functions run + * with the correct subdocument as `this`. If no subdocuments, returns the top-level + * document. + * + * @param {Document} doc + * @param {String[]} parts + * @param {Schema} schema + * @returns Document + */ + +module.exports = function getDeepestSubdocumentForPath(doc, parts, schema) { + let curPath = parts[0]; + let curSchema = schema; + let subdoc = doc; + for (let i = 0; i < parts.length - 1; ++i) { + const curSchemaType = curSchema.path(curPath); + if (curSchemaType && curSchemaType.schema) { + let newSubdoc = subdoc.get(curPath); + curSchema = curSchemaType.schema; + curPath = parts[i + 1]; + if (Array.isArray(newSubdoc) && !isNaN(curPath)) { + newSubdoc = newSubdoc[curPath]; + curPath = ''; + } + if (newSubdoc == null) { + break; + } + subdoc = newSubdoc; + } else { + curPath += curPath.length ? '.' + parts[i + 1] : parts[i + 1]; + } + } + + return subdoc; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/getEmbeddedDiscriminatorPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/getEmbeddedDiscriminatorPath.js new file mode 100644 index 000000000..3f3056eb5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/getEmbeddedDiscriminatorPath.js @@ -0,0 +1,53 @@ +'use strict'; + +const get = require('../get'); +const getSchemaDiscriminatorByValue = require('../discriminator/getSchemaDiscriminatorByValue'); + +/** + * Like `schema.path()`, except with a document, because impossible to + * determine path type without knowing the embedded discriminator key. + * + * @param {Document} doc + * @param {String|String[]} path + * @param {Object} [options] + * @api private + */ + +module.exports = function getEmbeddedDiscriminatorPath(doc, path, options) { + options = options || {}; + const typeOnly = options.typeOnly; + const parts = Array.isArray(path) ? + path : + (path.indexOf('.') === -1 ? [path] : path.split('.')); + let schemaType = null; + let type = 'adhocOrUndefined'; + + const schema = getSchemaDiscriminatorByValue(doc.schema, doc.get(doc.schema.options.discriminatorKey)) || doc.schema; + + for (let i = 0; i < parts.length; ++i) { + const subpath = parts.slice(0, i + 1).join('.'); + schemaType = schema.path(subpath); + if (schemaType == null) { + type = 'adhocOrUndefined'; + continue; + } + if (schemaType.instance === 'Mixed') { + return typeOnly ? 'real' : schemaType; + } + type = schema.pathType(subpath); + if ((schemaType.$isSingleNested || schemaType.$isMongooseDocumentArrayElement) && + schemaType.schema.discriminators != null) { + const discriminators = schemaType.schema.discriminators; + const discriminatorKey = doc.get(subpath + '.' + + get(schemaType, 'schema.options.discriminatorKey')); + if (discriminatorKey == null || discriminators[discriminatorKey] == null) { + continue; + } + const rest = parts.slice(i + 1).join('.'); + return getEmbeddedDiscriminatorPath(doc.get(subpath), rest, options); + } + } + + // Are we getting the whole schema or just the type, 'real', 'nested', etc. + return typeOnly ? type : schemaType; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/handleSpreadDoc.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/handleSpreadDoc.js new file mode 100644 index 000000000..5f7151717 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/document/handleSpreadDoc.js @@ -0,0 +1,35 @@ +'use strict'; + +const utils = require('../../utils'); + +const keysToSkip = new Set(['__index', '__parentArray', '_doc']); + +/** + * Using spread operator on a Mongoose document gives you a + * POJO that has a tendency to cause infinite recursion. So + * we use this function on `set()` to prevent that. + */ + +module.exports = function handleSpreadDoc(v, includeExtraKeys) { + if (utils.isPOJO(v) && v.$__ != null && v._doc != null) { + if (includeExtraKeys) { + const extraKeys = {}; + for (const key of Object.keys(v)) { + if (typeof key === 'symbol') { + continue; + } + if (key[0] === '$') { + continue; + } + if (keysToSkip.has(key)) { + continue; + } + extraKeys[key] = v[key]; + } + return { ...v._doc, ...extraKeys }; + } + return v._doc; + } + + return v; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/each.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/each.js new file mode 100644 index 000000000..9ce5cc621 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/each.js @@ -0,0 +1,25 @@ +'use strict'; + +module.exports = function each(arr, cb, done) { + if (arr.length === 0) { + return done(); + } + + let remaining = arr.length; + let err = null; + for (const v of arr) { + cb(v, function(_err) { + if (err != null) { + return; + } + if (_err != null) { + err = _err; + return done(err); + } + + if (--remaining <= 0) { + return done(); + } + }); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/error/combinePathErrors.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/error/combinePathErrors.js new file mode 100644 index 000000000..841dbc0aa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/error/combinePathErrors.js @@ -0,0 +1,22 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function combinePathErrors(err) { + const keys = Object.keys(err.errors || {}); + const len = keys.length; + const msgs = []; + let key; + + for (let i = 0; i < len; ++i) { + key = keys[i]; + if (err === err.errors[key]) { + continue; + } + msgs.push(key + ': ' + err.errors[key].message); + } + + return msgs.join(', '); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/firstKey.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/firstKey.js new file mode 100644 index 000000000..4495d2a88 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/firstKey.js @@ -0,0 +1,8 @@ +'use strict'; + +module.exports = function firstKey(obj) { + if (obj == null) { + return null; + } + return Object.keys(obj)[0]; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/get.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/get.js new file mode 100644 index 000000000..08c2b849f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/get.js @@ -0,0 +1,65 @@ +'use strict'; + +/** + * Simplified lodash.get to work around the annoying null quirk. See: + * https://github.com/lodash/lodash/issues/3659 + * @api private + */ + +module.exports = function get(obj, path, def) { + let parts; + let isPathArray = false; + if (typeof path === 'string') { + if (path.indexOf('.') === -1) { + const _v = getProperty(obj, path); + if (_v == null) { + return def; + } + return _v; + } + + parts = path.split('.'); + } else { + isPathArray = true; + parts = path; + + if (parts.length === 1) { + const _v = getProperty(obj, parts[0]); + if (_v == null) { + return def; + } + return _v; + } + } + let rest = path; + let cur = obj; + for (const part of parts) { + if (cur == null) { + return def; + } + + // `lib/cast.js` depends on being able to get dotted paths in updates, + // like `{ $set: { 'a.b': 42 } }` + if (!isPathArray && cur[rest] != null) { + return cur[rest]; + } + + cur = getProperty(cur, part); + + if (!isPathArray) { + rest = rest.substr(part.length + 1); + } + } + + return cur == null ? def : cur; +}; + +function getProperty(obj, prop) { + if (obj == null) { + return obj; + } + if (obj instanceof Map) { + return obj.get(prop); + } + return obj[prop]; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getConstructorName.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getConstructorName.js new file mode 100644 index 000000000..5ebe7bb02 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getConstructorName.js @@ -0,0 +1,16 @@ +'use strict'; + +/** + * If `val` is an object, returns constructor name, if possible. Otherwise returns undefined. + * @api private + */ + +module.exports = function getConstructorName(val) { + if (val == null) { + return void 0; + } + if (typeof val.constructor !== 'function') { + return void 0; + } + return val.constructor.name; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getDefaultBulkwriteResult.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getDefaultBulkwriteResult.js new file mode 100644 index 000000000..855cf7a1b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getDefaultBulkwriteResult.js @@ -0,0 +1,27 @@ +'use strict'; +function getDefaultBulkwriteResult() { + return { + result: { + ok: 1, + writeErrors: [], + writeConcernErrors: [], + insertedIds: [], + nInserted: 0, + nUpserted: 0, + nMatched: 0, + nModified: 0, + nRemoved: 0, + upserted: [] + }, + insertedCount: 0, + matchedCount: 0, + modifiedCount: 0, + deletedCount: 0, + upsertedCount: 0, + upsertedIds: {}, + insertedIds: {}, + n: 0 + }; +} + +module.exports = getDefaultBulkwriteResult; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getFunctionName.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getFunctionName.js new file mode 100644 index 000000000..d1f3a5a6a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/getFunctionName.js @@ -0,0 +1,10 @@ +'use strict'; + +const functionNameRE = /^function\s*([^\s(]+)/; + +module.exports = function(fn) { + return ( + fn.name || + (fn.toString().trim().match(functionNameRE) || [])[1] + ); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/immediate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/immediate.js new file mode 100644 index 000000000..73085f7d4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/immediate.js @@ -0,0 +1,16 @@ +/*! + * Centralize this so we can more easily work around issues with people + * stubbing out `process.nextTick()` in tests using sinon: + * https://github.com/sinonjs/lolex#automatically-incrementing-mocked-time + * See gh-6074 + */ + +'use strict'; + +const nextTick = typeof process !== 'undefined' && typeof process.nextTick === 'function' ? + process.nextTick.bind(process) : + cb => setTimeout(cb, 0); // Fallback for browser build + +module.exports = function immediate(cb) { + return nextTick(cb); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/applySchemaCollation.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/applySchemaCollation.js new file mode 100644 index 000000000..93a97a48b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/applySchemaCollation.js @@ -0,0 +1,13 @@ +'use strict'; + +const isTextIndex = require('./isTextIndex'); + +module.exports = function applySchemaCollation(indexKeys, indexOptions, schemaOptions) { + if (isTextIndex(indexKeys)) { + return; + } + + if (schemaOptions.hasOwnProperty('collation') && !indexOptions.hasOwnProperty('collation')) { + indexOptions.collation = schemaOptions.collation; + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/decorateDiscriminatorIndexOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/decorateDiscriminatorIndexOptions.js new file mode 100644 index 000000000..7b7f51a18 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/decorateDiscriminatorIndexOptions.js @@ -0,0 +1,14 @@ +'use strict'; + +module.exports = function decorateDiscriminatorIndexOptions(schema, indexOptions) { + // If the model is a discriminator and has an index, add a + // partialFilterExpression by default so the index will only apply + // to that discriminator. + const discriminatorName = schema.discriminatorMapping && schema.discriminatorMapping.value; + if (discriminatorName && !('sparse' in indexOptions)) { + const discriminatorKey = schema.options.discriminatorKey; + indexOptions.partialFilterExpression = indexOptions.partialFilterExpression || {}; + indexOptions.partialFilterExpression[discriminatorKey] = discriminatorName; + } + return indexOptions; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/getRelatedIndexes.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/getRelatedIndexes.js new file mode 100644 index 000000000..a22a5e120 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/getRelatedIndexes.js @@ -0,0 +1,63 @@ +'use strict'; + +const hasDollarKeys = require('../query/hasDollarKeys'); + +function getRelatedSchemaIndexes(model, schemaIndexes) { + return getRelatedIndexes({ + baseModelName: model.baseModelName, + discriminatorMapping: model.schema.discriminatorMapping, + indexes: schemaIndexes, + indexesType: 'schema' + }); +} + +function getRelatedDBIndexes(model, dbIndexes) { + return getRelatedIndexes({ + baseModelName: model.baseModelName, + discriminatorMapping: model.schema.discriminatorMapping, + indexes: dbIndexes, + indexesType: 'db' + }); +} + +module.exports = { + getRelatedSchemaIndexes, + getRelatedDBIndexes +}; + +function getRelatedIndexes({ + baseModelName, + discriminatorMapping, + indexes, + indexesType +}) { + const discriminatorKey = discriminatorMapping && discriminatorMapping.key; + const discriminatorValue = discriminatorMapping && discriminatorMapping.value; + + if (!discriminatorKey) { + return indexes; + } + + const isChildDiscriminatorModel = Boolean(baseModelName); + if (isChildDiscriminatorModel) { + return indexes.filter(index => { + const partialFilterExpression = getPartialFilterExpression(index, indexesType); + return partialFilterExpression && partialFilterExpression[discriminatorKey] === discriminatorValue; + }); + } + + return indexes.filter(index => { + const partialFilterExpression = getPartialFilterExpression(index, indexesType); + return !partialFilterExpression + || !partialFilterExpression[discriminatorKey] + || (hasDollarKeys(partialFilterExpression[discriminatorKey]) && !('$eq' in partialFilterExpression[discriminatorKey])); + }); +} + +function getPartialFilterExpression(index, indexesType) { + if (indexesType === 'schema') { + const options = index[1]; + return options && options.partialFilterExpression; + } + return index.partialFilterExpression; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isDefaultIdIndex.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isDefaultIdIndex.js new file mode 100644 index 000000000..56d74346c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isDefaultIdIndex.js @@ -0,0 +1,18 @@ +'use strict'; + +const get = require('../get'); + +module.exports = function isDefaultIdIndex(index) { + if (Array.isArray(index)) { + // Mongoose syntax + const keys = Object.keys(index[0]); + return keys.length === 1 && keys[0] === '_id' && index[0]._id !== 'hashed'; + } + + if (typeof index !== 'object') { + return false; + } + + const key = get(index, 'key', {}); + return Object.keys(key).length === 1 && key.hasOwnProperty('_id'); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isIndexEqual.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isIndexEqual.js new file mode 100644 index 000000000..735041236 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isIndexEqual.js @@ -0,0 +1,96 @@ +'use strict'; + +const get = require('../get'); +const utils = require('../../utils'); +/** + * Given a Mongoose index definition (key + options objects) and a MongoDB server + * index definition, determine if the two indexes are equal. + * + * @param {Object} schemaIndexKeysObject the Mongoose index spec + * @param {Object} options the Mongoose index definition's options + * @param {Object} dbIndex the index in MongoDB as returned by `listIndexes()` + * @api private + */ + +module.exports = function isIndexEqual(schemaIndexKeysObject, options, dbIndex) { + // Special case: text indexes have a special format in the db. For example, + // `{ name: 'text' }` becomes: + // { + // v: 2, + // key: { _fts: 'text', _ftsx: 1 }, + // name: 'name_text', + // ns: 'test.tests', + // background: true, + // weights: { name: 1 }, + // default_language: 'english', + // language_override: 'language', + // textIndexVersion: 3 + // } + if (dbIndex.textIndexVersion != null) { + delete dbIndex.key._fts; + delete dbIndex.key._ftsx; + const weights = { ...dbIndex.weights, ...dbIndex.key }; + if (Object.keys(weights).length !== Object.keys(schemaIndexKeysObject).length) { + return false; + } + for (const prop of Object.keys(weights)) { + if (!(prop in schemaIndexKeysObject)) { + return false; + } + const weight = weights[prop]; + if (weight !== get(options, 'weights.' + prop) && !(weight === 1 && get(options, 'weights.' + prop) == null)) { + return false; + } + } + + if (options['default_language'] !== dbIndex['default_language']) { + return dbIndex['default_language'] === 'english' && options['default_language'] == null; + } + + return true; + } + + const optionKeys = [ + 'unique', + 'partialFilterExpression', + 'sparse', + 'expireAfterSeconds', + 'collation' + ]; + for (const key of optionKeys) { + if (!(key in options) && !(key in dbIndex)) { + continue; + } + if (key === 'collation') { + if (options[key] == null || dbIndex[key] == null) { + return options[key] == null && dbIndex[key] == null; + } + const definedKeys = Object.keys(options.collation); + const schemaCollation = options.collation; + const dbCollation = dbIndex.collation; + for (const opt of definedKeys) { + if (get(schemaCollation, opt) !== get(dbCollation, opt)) { + return false; + } + } + } else if (!utils.deepEqual(options[key], dbIndex[key])) { + return false; + } + } + + const schemaIndexKeys = Object.keys(schemaIndexKeysObject); + const dbIndexKeys = Object.keys(dbIndex.key); + if (schemaIndexKeys.length !== dbIndexKeys.length) { + return false; + } + for (let i = 0; i < schemaIndexKeys.length; ++i) { + if (schemaIndexKeys[i] !== dbIndexKeys[i]) { + return false; + } + if (!utils.deepEqual(schemaIndexKeysObject[schemaIndexKeys[i]], dbIndex.key[dbIndexKeys[i]])) { + return false; + } + } + + return true; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isTextIndex.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isTextIndex.js new file mode 100644 index 000000000..fdd98d450 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/indexes/isTextIndex.js @@ -0,0 +1,16 @@ +'use strict'; + +/** + * Returns `true` if the given index options have a `text` option. + */ + +module.exports = function isTextIndex(indexKeys) { + let isTextIndex = false; + for (const key of Object.keys(indexKeys)) { + if (indexKeys[key] === 'text') { + isTextIndex = true; + } + } + + return isTextIndex; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isAsyncFunction.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isAsyncFunction.js new file mode 100644 index 000000000..679590e58 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isAsyncFunction.js @@ -0,0 +1,9 @@ +'use strict'; + +module.exports = function isAsyncFunction(v) { + return ( + typeof v === 'function' && + v.constructor && + v.constructor.name === 'AsyncFunction' + ); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isBsonType.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isBsonType.js new file mode 100644 index 000000000..f75fd4016 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isBsonType.js @@ -0,0 +1,16 @@ +'use strict'; + +/** + * Get the bson type, if it exists + * @api private + */ + +function isBsonType(obj, typename) { + return ( + typeof obj === 'object' && + obj !== null && + obj._bsontype === typename + ); +} + +module.exports = isBsonType; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isMongooseObject.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isMongooseObject.js new file mode 100644 index 000000000..736d0ecd7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isMongooseObject.js @@ -0,0 +1,22 @@ +'use strict'; + +const isMongooseArray = require('../types/array/isMongooseArray').isMongooseArray; +/** + * Returns if `v` is a mongoose object that has a `toObject()` method we can use. + * + * This is for compatibility with libs like Date.js which do foolish things to Natives. + * + * @param {Any} v + * @api private + */ + +module.exports = function(v) { + return ( + v != null && ( + isMongooseArray(v) || // Array or Document Array + v.$__ != null || // Document + v.isMongooseBuffer || // Buffer + v.$isMongooseMap // Map + ) + ); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isObject.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isObject.js new file mode 100644 index 000000000..21900dede --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isObject.js @@ -0,0 +1,16 @@ +'use strict'; + +/** + * Determines if `arg` is an object. + * + * @param {Object|Array|String|Function|RegExp|any} arg + * @api private + * @return {Boolean} + */ + +module.exports = function(arg) { + return ( + Buffer.isBuffer(arg) || + Object.prototype.toString.call(arg) === '[object Object]' + ); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isPOJO.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isPOJO.js new file mode 100644 index 000000000..2f1a00f0a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isPOJO.js @@ -0,0 +1,12 @@ +'use strict'; + +module.exports = function isPOJO(arg) { + if (arg == null || typeof arg !== 'object') { + return false; + } + const proto = Object.getPrototypeOf(arg); + // Prototype may be null if you used `Object.create(null)` + // Checking `proto`'s constructor is safe because `getPrototypeOf()` + // explicitly crosses the boundary from object data to object metadata + return !proto || proto.constructor.name === 'Object'; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isPromise.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isPromise.js new file mode 100644 index 000000000..0da827e28 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isPromise.js @@ -0,0 +1,6 @@ +'use strict'; +function isPromise(val) { + return !!val && (typeof val === 'object' || typeof val === 'function') && typeof val.then === 'function'; +} + +module.exports = isPromise; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isSimpleValidator.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isSimpleValidator.js new file mode 100644 index 000000000..92c934682 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/isSimpleValidator.js @@ -0,0 +1,22 @@ +'use strict'; + +/** + * Determines if `arg` is a flat object. + * + * @param {Object|Array|String|Function|RegExp|any} arg + * @api private + * @return {Boolean} + */ + +module.exports = function isSimpleValidator(obj) { + const keys = Object.keys(obj); + let result = true; + for (let i = 0, len = keys.length; i < len; ++i) { + if (typeof obj[keys[i]] === 'object' && obj[keys[i]] !== null) { + result = false; + break; + } + } + + return result; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/minimize.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/minimize.js new file mode 100644 index 000000000..902309f7b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/minimize.js @@ -0,0 +1,41 @@ +'use strict'; + +const { isPOJO } = require('../utils'); + +module.exports = minimize; + +/** + * Minimizes an object, removing undefined values and empty objects + * + * @param {Object} object to minimize + * @return {Object|undefined} + * @api private + */ + +function minimize(obj) { + const keys = Object.keys(obj); + let i = keys.length; + let hasKeys; + let key; + let val; + + while (i--) { + key = keys[i]; + val = obj[key]; + + if (isPOJO(val)) { + obj[key] = minimize(val); + } + + if (undefined === obj[key]) { + delete obj[key]; + continue; + } + + hasKeys = true; + } + + return hasKeys + ? obj + : undefined; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyDefaultsToPOJO.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyDefaultsToPOJO.js new file mode 100644 index 000000000..4aca295cd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyDefaultsToPOJO.js @@ -0,0 +1,52 @@ +'use strict'; + +module.exports = function applyDefaultsToPOJO(doc, schema) { + const paths = Object.keys(schema.paths); + const plen = paths.length; + + for (let i = 0; i < plen; ++i) { + let curPath = ''; + const p = paths[i]; + + const type = schema.paths[p]; + const path = type.splitPath(); + const len = path.length; + let doc_ = doc; + for (let j = 0; j < len; ++j) { + if (doc_ == null) { + break; + } + + const piece = path[j]; + curPath += (!curPath.length ? '' : '.') + piece; + + if (j === len - 1) { + if (typeof doc_[piece] !== 'undefined') { + if (type.$isSingleNested) { + applyDefaultsToPOJO(doc_[piece], type.caster.schema); + } else if (type.$isMongooseDocumentArray && Array.isArray(doc_[piece])) { + doc_[piece].forEach(el => applyDefaultsToPOJO(el, type.schema)); + } + + break; + } + + const def = type.getDefault(doc, false, { skipCast: true }); + if (typeof def !== 'undefined') { + doc_[piece] = def; + + if (type.$isSingleNested) { + applyDefaultsToPOJO(def, type.caster.schema); + } else if (type.$isMongooseDocumentArray && Array.isArray(def)) { + def.forEach(el => applyDefaultsToPOJO(el, type.schema)); + } + } + } else { + if (doc_[piece] == null) { + doc_[piece] = {}; + } + doc_ = doc_[piece]; + } + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyHooks.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyHooks.js new file mode 100644 index 000000000..998da62f4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyHooks.js @@ -0,0 +1,150 @@ +'use strict'; + +const symbols = require('../../schema/symbols'); +const promiseOrCallback = require('../promiseOrCallback'); + +/*! + * ignore + */ + +module.exports = applyHooks; + +/*! + * ignore + */ + +applyHooks.middlewareFunctions = [ + 'deleteOne', + 'save', + 'validate', + 'remove', + 'updateOne', + 'init' +]; + +/*! + * ignore + */ + +const alreadyHookedFunctions = new Set(applyHooks.middlewareFunctions.flatMap(fn => ([fn, `$__${fn}`]))); + +/** + * Register hooks for this model + * + * @param {Model} model + * @param {Schema} schema + * @param {Object} options + * @api private + */ + +function applyHooks(model, schema, options) { + options = options || {}; + + const kareemOptions = { + useErrorHandlers: true, + numCallbackParams: 1, + nullResultByDefault: true, + contextParameter: true + }; + const objToDecorate = options.decorateDoc ? model : model.prototype; + + model.$appliedHooks = true; + for (const key of Object.keys(schema.paths)) { + const type = schema.paths[key]; + let childModel = null; + if (type.$isSingleNested) { + childModel = type.caster; + } else if (type.$isMongooseDocumentArray) { + childModel = type.Constructor; + } else { + continue; + } + + if (childModel.$appliedHooks) { + continue; + } + + applyHooks(childModel, type.schema, { ...options, isChildSchema: true }); + if (childModel.discriminators != null) { + const keys = Object.keys(childModel.discriminators); + for (const key of keys) { + applyHooks(childModel.discriminators[key], + childModel.discriminators[key].schema, options); + } + } + } + + // Built-in hooks rely on hooking internal functions in order to support + // promises and make it so that `doc.save.toString()` provides meaningful + // information. + + const middleware = schema.s.hooks. + filter(hook => { + if (hook.name === 'updateOne' || hook.name === 'deleteOne') { + return !!hook['document']; + } + if (hook.name === 'remove' || hook.name === 'init') { + return hook['document'] == null || !!hook['document']; + } + if (hook.query != null || hook.document != null) { + return hook.document !== false; + } + return true; + }). + filter(hook => { + // If user has overwritten the method, don't apply built-in middleware + if (schema.methods[hook.name]) { + return !hook.fn[symbols.builtInMiddleware]; + } + + return true; + }); + + model._middleware = middleware; + + objToDecorate.$__originalValidate = objToDecorate.$__originalValidate || objToDecorate.$__validate; + + const internalMethodsToWrap = options && options.isChildSchema ? ['save', 'validate', 'deleteOne'] : ['save', 'validate']; + for (const method of internalMethodsToWrap) { + const toWrap = method === 'validate' ? '$__originalValidate' : `$__${method}`; + const wrapped = middleware. + createWrapper(method, objToDecorate[toWrap], null, kareemOptions); + objToDecorate[`$__${method}`] = wrapped; + } + objToDecorate.$__init = middleware. + createWrapperSync('init', objToDecorate.$__init, null, kareemOptions); + + // Support hooks for custom methods + const customMethods = Object.keys(schema.methods); + const customMethodOptions = Object.assign({}, kareemOptions, { + // Only use `checkForPromise` for custom methods, because mongoose + // query thunks are not as consistent as I would like about returning + // a nullish value rather than the query. If a query thunk returns + // a query, `checkForPromise` causes infinite recursion + checkForPromise: true + }); + for (const method of customMethods) { + if (alreadyHookedFunctions.has(method)) { + continue; + } + if (!middleware.hasHooks(method)) { + // Don't wrap if there are no hooks for the custom method to avoid + // surprises. Also, `createWrapper()` enforces consistent async, + // so wrapping a sync method would break it. + continue; + } + const originalMethod = objToDecorate[method]; + objToDecorate[method] = function() { + const args = Array.prototype.slice.call(arguments); + const cb = args.slice(-1).pop(); + const argsWithoutCallback = typeof cb === 'function' ? + args.slice(0, args.length - 1) : args; + return promiseOrCallback(cb, callback => { + return this[`$__${method}`].apply(this, + argsWithoutCallback.concat([callback])); + }, model.events); + }; + objToDecorate[`$__${method}`] = middleware. + createWrapper(method, originalMethod, null, customMethodOptions); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyMethods.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyMethods.js new file mode 100644 index 000000000..e864bb1f1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyMethods.js @@ -0,0 +1,70 @@ +'use strict'; + +const get = require('../get'); +const utils = require('../../utils'); + +/** + * Register methods for this model + * + * @param {Model} model + * @param {Schema} schema + * @api private + */ + +module.exports = function applyMethods(model, schema) { + const Model = require('../../model'); + + function apply(method, schema) { + Object.defineProperty(model.prototype, method, { + get: function() { + const h = {}; + for (const k in schema.methods[method]) { + h[k] = schema.methods[method][k].bind(this); + } + return h; + }, + configurable: true + }); + } + for (const method of Object.keys(schema.methods)) { + const fn = schema.methods[method]; + if (schema.tree.hasOwnProperty(method)) { + throw new Error('You have a method and a property in your schema both ' + + 'named "' + method + '"'); + } + + // Avoid making custom methods if user sets a method to itself, e.g. + // `schema.method(save, Document.prototype.save)`. Can happen when + // calling `loadClass()` with a class that `extends Document`. See gh-12254 + if (typeof fn === 'function' && + Model.prototype[method] === fn) { + delete schema.methods[method]; + continue; + } + + if (schema.reserved[method] && + !get(schema, `methodOptions.${method}.suppressWarning`, false)) { + utils.warn(`mongoose: the method name "${method}" is used by mongoose ` + + 'internally, overwriting it may cause bugs. If you\'re sure you know ' + + 'what you\'re doing, you can suppress this error by using ' + + `\`schema.method('${method}', fn, { suppressWarning: true })\`.`); + } + if (typeof fn === 'function') { + model.prototype[method] = fn; + } else { + apply(method, schema); + } + } + + // Recursively call `applyMethods()` on child schemas + model.$appliedMethods = true; + for (const key of Object.keys(schema.paths)) { + const type = schema.paths[key]; + if (type.$isSingleNested && !type.caster.$appliedMethods) { + applyMethods(type.caster, type.schema); + } + if (type.$isMongooseDocumentArray && !type.Constructor.$appliedMethods) { + applyMethods(type.Constructor, type.schema); + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyStaticHooks.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyStaticHooks.js new file mode 100644 index 000000000..957e94f22 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyStaticHooks.js @@ -0,0 +1,71 @@ +'use strict'; + +const middlewareFunctions = require('../../constants').queryMiddlewareFunctions; +const promiseOrCallback = require('../promiseOrCallback'); + +module.exports = function applyStaticHooks(model, hooks, statics) { + const kareemOptions = { + useErrorHandlers: true, + numCallbackParams: 1 + }; + + hooks = hooks.filter(hook => { + // If the custom static overwrites an existing query middleware, don't apply + // middleware to it by default. This avoids a potential backwards breaking + // change with plugins like `mongoose-delete` that use statics to overwrite + // built-in Mongoose functions. + if (middlewareFunctions.indexOf(hook.name) !== -1) { + return !!hook.model; + } + return hook.model !== false; + }); + + model.$__insertMany = hooks.createWrapper('insertMany', + model.$__insertMany, model, kareemOptions); + + for (const key of Object.keys(statics)) { + if (hooks.hasHooks(key)) { + const original = model[key]; + + model[key] = function() { + const numArgs = arguments.length; + const lastArg = numArgs > 0 ? arguments[numArgs - 1] : null; + const cb = typeof lastArg === 'function' ? lastArg : null; + const args = Array.prototype.slice. + call(arguments, 0, cb == null ? numArgs : numArgs - 1); + // Special case: can't use `Kareem#wrap()` because it doesn't currently + // support wrapped functions that return a promise. + return promiseOrCallback(cb, callback => { + hooks.execPre(key, model, args, function(err) { + if (err != null) { + return callback(err); + } + + let postCalled = 0; + const ret = original.apply(model, args.concat(post)); + if (ret != null && typeof ret.then === 'function') { + ret.then(res => post(null, res), err => post(err)); + } + + function post(error, res) { + if (postCalled++ > 0) { + return; + } + + if (error != null) { + return callback(error); + } + + hooks.execPost(key, model, [res], function(error) { + if (error != null) { + return callback(error); + } + callback(null, res); + }); + } + }); + }, model.events); + }; + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyStatics.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyStatics.js new file mode 100644 index 000000000..d94d91c7c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/applyStatics.js @@ -0,0 +1,13 @@ +'use strict'; + +/** + * Register statics for this model + * @param {Model} model + * @param {Schema} schema + * @api private + */ +module.exports = function applyStatics(model, schema) { + for (const i in schema.statics) { + model[i] = schema.statics[i]; + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/castBulkWrite.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/castBulkWrite.js new file mode 100644 index 000000000..1afb36987 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/castBulkWrite.js @@ -0,0 +1,296 @@ +'use strict'; + +const MongooseError = require('../../error/mongooseError'); +const getDiscriminatorByValue = require('../../helpers/discriminator/getDiscriminatorByValue'); +const applyTimestampsToChildren = require('../update/applyTimestampsToChildren'); +const applyTimestampsToUpdate = require('../update/applyTimestampsToUpdate'); +const cast = require('../../cast'); +const castUpdate = require('../query/castUpdate'); +const clone = require('../clone'); +const decorateUpdateWithVersionKey = require('../update/decorateUpdateWithVersionKey'); +const { inspect } = require('util'); +const setDefaultsOnInsert = require('../setDefaultsOnInsert'); + +/** + * Given a model and a bulkWrite op, return a thunk that handles casting and + * validating the individual op. + * @param {Model} originalModel + * @param {Object} op + * @param {Object} [options] + * @api private + */ + +module.exports = function castBulkWrite(originalModel, op, options) { + const now = originalModel.base.now(); + + const globalSetDefaultsOnInsert = originalModel.base.options.setDefaultsOnInsert; + if (op['insertOne']) { + return (callback) => { + const model = decideModelByObject(originalModel, op['insertOne']['document']); + + const doc = new model(op['insertOne']['document']); + if (model.schema.options.timestamps && getTimestampsOpt(op['insertOne'], options)) { + doc.initializeTimestamps(); + } + if (options.session != null) { + doc.$session(options.session); + } + const versionKey = model?.schema?.options?.versionKey; + if (versionKey && doc[versionKey] == null) { + doc[versionKey] = 0; + } + op['insertOne']['document'] = doc; + + if (options.skipValidation || op['insertOne'].skipValidation) { + callback(null); + return; + } + + op['insertOne']['document'].$validate().then( + () => { callback(null); }, + err => { callback(err, null); } + ); + }; + } else if (op['updateOne']) { + return (callback) => { + try { + if (!op['updateOne']['filter']) { + throw new Error('Must provide a filter object.'); + } + if (!op['updateOne']['update']) { + throw new Error('Must provide an update object.'); + } + + const model = decideModelByObject(originalModel, op['updateOne']['filter']); + const schema = model.schema; + const strict = options.strict != null ? options.strict : model.schema.options.strict; + + const update = clone(op['updateOne']['update']); + + _addDiscriminatorToObject(schema, op['updateOne']['filter']); + + const doInitTimestamps = getTimestampsOpt(op['updateOne'], options); + + if (model.schema.$timestamps != null && doInitTimestamps) { + const createdAt = model.schema.$timestamps.createdAt; + const updatedAt = model.schema.$timestamps.updatedAt; + applyTimestampsToUpdate(now, createdAt, updatedAt, update, {}); + } + + if (doInitTimestamps) { + applyTimestampsToChildren(now, update, model.schema); + } + + const shouldSetDefaultsOnInsert = op['updateOne'].setDefaultsOnInsert == null ? + globalSetDefaultsOnInsert : + op['updateOne'].setDefaultsOnInsert; + if (shouldSetDefaultsOnInsert !== false) { + setDefaultsOnInsert(op['updateOne']['filter'], model.schema, update, { + setDefaultsOnInsert: true, + upsert: op['updateOne'].upsert + }); + } + + decorateUpdateWithVersionKey( + update, + op['updateOne'], + model.schema.options.versionKey + ); + + op['updateOne']['filter'] = cast(model.schema, op['updateOne']['filter'], { + strict: strict, + upsert: op['updateOne'].upsert + }); + op['updateOne']['update'] = castUpdate(model.schema, update, { + strict: strict, + upsert: op['updateOne'].upsert + }, model, op['updateOne']['filter']); + } catch (error) { + return callback(error, null); + } + + callback(null); + }; + } else if (op['updateMany']) { + return (callback) => { + try { + if (!op['updateMany']['filter']) { + throw new Error('Must provide a filter object.'); + } + if (!op['updateMany']['update']) { + throw new Error('Must provide an update object.'); + } + + const model = decideModelByObject(originalModel, op['updateMany']['filter']); + const schema = model.schema; + const strict = options.strict != null ? options.strict : model.schema.options.strict; + + const shouldSetDefaultsOnInsert = op['updateMany'].setDefaultsOnInsert == null ? + globalSetDefaultsOnInsert : + op['updateMany'].setDefaultsOnInsert; + + if (shouldSetDefaultsOnInsert !== false) { + setDefaultsOnInsert(op['updateMany']['filter'], model.schema, op['updateMany']['update'], { + setDefaultsOnInsert: true, + upsert: op['updateMany'].upsert + }); + } + + const doInitTimestamps = getTimestampsOpt(op['updateMany'], options); + + if (model.schema.$timestamps != null && doInitTimestamps) { + const createdAt = model.schema.$timestamps.createdAt; + const updatedAt = model.schema.$timestamps.updatedAt; + applyTimestampsToUpdate(now, createdAt, updatedAt, op['updateMany']['update'], {}); + } + if (doInitTimestamps) { + applyTimestampsToChildren(now, op['updateMany']['update'], model.schema); + } + + _addDiscriminatorToObject(schema, op['updateMany']['filter']); + + decorateUpdateWithVersionKey( + op['updateMany']['update'], + op['updateMany'], + model.schema.options.versionKey + ); + + op['updateMany']['filter'] = cast(model.schema, op['updateMany']['filter'], { + strict: strict, + upsert: op['updateMany'].upsert + }); + + op['updateMany']['update'] = castUpdate(model.schema, op['updateMany']['update'], { + strict: strict, + upsert: op['updateMany'].upsert + }, model, op['updateMany']['filter']); + } catch (error) { + return callback(error, null); + } + + callback(null); + }; + } else if (op['replaceOne']) { + return (callback) => { + const model = decideModelByObject(originalModel, op['replaceOne']['filter']); + const schema = model.schema; + const strict = options.strict != null ? options.strict : model.schema.options.strict; + + _addDiscriminatorToObject(schema, op['replaceOne']['filter']); + try { + op['replaceOne']['filter'] = cast(model.schema, op['replaceOne']['filter'], { + strict: strict, + upsert: op['replaceOne'].upsert + }); + } catch (error) { + return callback(error, null); + } + + // set `skipId`, otherwise we get "_id field cannot be changed" + const doc = new model(op['replaceOne']['replacement'], strict, true); + if (model.schema.options.timestamps && getTimestampsOpt(op['replaceOne'], options)) { + doc.initializeTimestamps(); + } + if (options.session != null) { + doc.$session(options.session); + } + const versionKey = model?.schema?.options?.versionKey; + if (versionKey && doc[versionKey] == null) { + doc[versionKey] = 0; + } + op['replaceOne']['replacement'] = doc; + + if (options.skipValidation || op['replaceOne'].skipValidation) { + op['replaceOne']['replacement'] = op['replaceOne']['replacement'].toBSON(); + callback(null); + return; + } + + op['replaceOne']['replacement'].$validate().then( + () => { + op['replaceOne']['replacement'] = op['replaceOne']['replacement'].toBSON(); + callback(null); + }, + error => { + callback(error, null); + } + ); + }; + } else if (op['deleteOne']) { + return (callback) => { + const model = decideModelByObject(originalModel, op['deleteOne']['filter']); + const schema = model.schema; + + _addDiscriminatorToObject(schema, op['deleteOne']['filter']); + + try { + op['deleteOne']['filter'] = cast(model.schema, + op['deleteOne']['filter']); + } catch (error) { + return callback(error, null); + } + + callback(null); + }; + } else if (op['deleteMany']) { + return (callback) => { + const model = decideModelByObject(originalModel, op['deleteMany']['filter']); + const schema = model.schema; + + _addDiscriminatorToObject(schema, op['deleteMany']['filter']); + + try { + op['deleteMany']['filter'] = cast(model.schema, + op['deleteMany']['filter']); + } catch (error) { + return callback(error, null); + } + + callback(null); + }; + } else { + return (callback) => { + const error = new MongooseError(`Invalid op passed to \`bulkWrite()\`: ${inspect(op)}`); + callback(error, null); + }; + } +}; + +function _addDiscriminatorToObject(schema, obj) { + if (schema == null) { + return; + } + if (schema.discriminatorMapping && !schema.discriminatorMapping.isRoot) { + obj[schema.discriminatorMapping.key] = schema.discriminatorMapping.value; + } +} + +/** + * gets discriminator model if discriminator key is present in object + * @api private + */ + +function decideModelByObject(model, object) { + const discriminatorKey = model.schema.options.discriminatorKey; + if (object != null && object.hasOwnProperty(discriminatorKey)) { + model = getDiscriminatorByValue(model.discriminators, object[discriminatorKey]) || model; + } + return model; +} + + +/** + * gets timestamps option for a given operation. If the option is set within an individual operation, use it. Otherwise, use the global timestamps option configured in the `bulkWrite` options. Overall default is `true`. + * @api private + */ + +function getTimestampsOpt(opCommand, options) { + const opLevelOpt = opCommand.timestamps; + const bulkLevelOpt = options.timestamps; + if (opLevelOpt != null) { + return opLevelOpt; + } else if (bulkLevelOpt != null) { + return bulkLevelOpt; + } + return true; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/discriminator.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/discriminator.js new file mode 100644 index 000000000..d587c7930 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/discriminator.js @@ -0,0 +1,213 @@ +'use strict'; + +const Mixed = require('../../schema/mixed'); +const applyBuiltinPlugins = require('../schema/applyBuiltinPlugins'); +const clone = require('../clone'); +const defineKey = require('../document/compile').defineKey; +const get = require('../get'); +const utils = require('../../utils'); +const mergeDiscriminatorSchema = require('../../helpers/discriminator/mergeDiscriminatorSchema'); + +const CUSTOMIZABLE_DISCRIMINATOR_OPTIONS = { + toJSON: true, + toObject: true, + _id: true, + id: true, + virtuals: true, + methods: true +}; + +/*! + * ignore + */ + +module.exports = function discriminator(model, name, schema, tiedValue, applyPlugins, mergeHooks, overwriteExisting) { + if (!(schema && schema.instanceOfSchema)) { + throw new Error('You must pass a valid discriminator Schema'); + } + + mergeHooks = mergeHooks == null ? true : mergeHooks; + + if (model.schema.discriminatorMapping && + !model.schema.discriminatorMapping.isRoot) { + throw new Error('Discriminator "' + name + + '" can only be a discriminator of the root model'); + } + + if (applyPlugins) { + const applyPluginsToDiscriminators = get(model.base, + 'options.applyPluginsToDiscriminators', false) || !mergeHooks; + // Even if `applyPluginsToDiscriminators` isn't set, we should still apply + // global plugins to schemas embedded in the discriminator schema (gh-7370) + model.base._applyPlugins(schema, { + skipTopLevel: !applyPluginsToDiscriminators + }); + } else if (!mergeHooks) { + applyBuiltinPlugins(schema); + } + + const key = model.schema.options.discriminatorKey; + + const existingPath = model.schema.path(key); + if (existingPath != null) { + if (!utils.hasUserDefinedProperty(existingPath.options, 'select')) { + existingPath.options.select = true; + } + existingPath.options.$skipDiscriminatorCheck = true; + } else { + const baseSchemaAddition = {}; + baseSchemaAddition[key] = { + default: void 0, + select: true, + $skipDiscriminatorCheck: true + }; + baseSchemaAddition[key][model.schema.options.typeKey] = String; + model.schema.add(baseSchemaAddition); + defineKey({ + prop: key, + prototype: model.prototype, + options: model.schema.options + }); + } + + if (schema.path(key) && schema.path(key).options.$skipDiscriminatorCheck !== true) { + throw new Error('Discriminator "' + name + + '" cannot have field with name "' + key + '"'); + } + + let value = name; + if ((typeof tiedValue === 'string' && tiedValue.length) || tiedValue != null) { + value = tiedValue; + } + + function merge(schema, baseSchema) { + // Retain original schema before merging base schema + schema._baseSchema = baseSchema; + if (baseSchema.paths._id && + baseSchema.paths._id.options && + !baseSchema.paths._id.options.auto) { + schema.remove('_id'); + } + + // Find conflicting paths: if something is a path in the base schema + // and a nested path in the child schema, overwrite the base schema path. + // See gh-6076 + const baseSchemaPaths = Object.keys(baseSchema.paths); + const conflictingPaths = []; + + for (const path of baseSchemaPaths) { + if (schema.nested[path]) { + conflictingPaths.push(path); + continue; + } + + if (path.indexOf('.') === -1) { + continue; + } + const sp = path.split('.').slice(0, -1); + let cur = ''; + for (const piece of sp) { + cur += (cur.length ? '.' : '') + piece; + if (schema.paths[cur] instanceof Mixed || + schema.singleNestedPaths[cur] instanceof Mixed) { + conflictingPaths.push(path); + } + } + } + + mergeDiscriminatorSchema(schema, baseSchema); + + // Clean up conflicting paths _after_ merging re: gh-6076 + for (const conflictingPath of conflictingPaths) { + delete schema.paths[conflictingPath]; + } + + // Rebuild schema models because schemas may have been merged re: #7884 + schema.childSchemas.forEach(obj => { + obj.model.prototype.$__setSchema(obj.schema); + }); + + const obj = {}; + obj[key] = { + default: value, + select: true, + set: function(newName) { + if (newName === value || (Array.isArray(value) && utils.deepEqual(newName, value))) { + return value; + } + throw new Error('Can\'t set discriminator key "' + key + '"'); + }, + $skipDiscriminatorCheck: true + }; + obj[key][schema.options.typeKey] = existingPath ? existingPath.options[schema.options.typeKey] : String; + schema.add(obj); + + schema.discriminatorMapping = { key: key, value: value, isRoot: false }; + + if (baseSchema.options.collection) { + schema.options.collection = baseSchema.options.collection; + } + const toJSON = schema.options.toJSON; + const toObject = schema.options.toObject; + const _id = schema.options._id; + const id = schema.options.id; + + const keys = Object.keys(schema.options); + schema.options.discriminatorKey = baseSchema.options.discriminatorKey; + const userProvidedOptions = schema._userProvidedOptions; + for (const _key of keys) { + if (!CUSTOMIZABLE_DISCRIMINATOR_OPTIONS[_key]) { + // Use `schema.options` in `deepEqual()` because of `discriminatorKey` + // set above. We don't allow customizing discriminator key, always + // overwrite. See gh-9238 + if (_key in userProvidedOptions && !utils.deepEqual(schema.options[_key], baseSchema.options[_key])) { + throw new Error('Can\'t customize discriminator option ' + _key + + ' (can only modify ' + + Object.keys(CUSTOMIZABLE_DISCRIMINATOR_OPTIONS).join(', ') + + ')'); + } + } + } + schema.options = clone(baseSchema.options); + + for (const _key of Object.keys(userProvidedOptions)) { + schema.options[_key] = userProvidedOptions[_key]; + } + if (toJSON) schema.options.toJSON = toJSON; + if (toObject) schema.options.toObject = toObject; + if (typeof _id !== 'undefined') { + schema.options._id = _id; + } + schema.options.id = id; + if (mergeHooks) { + schema.s.hooks = model.schema.s.hooks.merge(schema.s.hooks); + } + if (applyPlugins) { + schema.plugins = Array.prototype.slice.call(baseSchema.plugins); + } + schema.callQueue = baseSchema.callQueue.concat(schema.callQueue); + delete schema._requiredpaths; // reset just in case Schema#requiredPaths() was called on either schema + } + + // merges base schema into new discriminator schema and sets new type field. + merge(schema, model.schema); + + if (!model.discriminators) { + model.discriminators = {}; + } + + if (!model.schema.discriminatorMapping) { + model.schema.discriminatorMapping = { key: key, value: null, isRoot: true }; + } + if (!model.schema.discriminators) { + model.schema.discriminators = {}; + } + + model.schema.discriminators[name] = schema; + + if (model.discriminators[name] && !schema.options.overwriteModels && !overwriteExisting) { + throw new Error('Discriminator with name "' + name + '" already exists'); + } + + return schema; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/pushNestedArrayPaths.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/pushNestedArrayPaths.js new file mode 100644 index 000000000..7f234faa2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/model/pushNestedArrayPaths.js @@ -0,0 +1,15 @@ +'use strict'; + +module.exports = function pushNestedArrayPaths(paths, nestedArray, path) { + if (nestedArray == null) { + return; + } + + for (let i = 0; i < nestedArray.length; ++i) { + if (Array.isArray(nestedArray[i])) { + pushNestedArrayPaths(paths, nestedArray[i], path + '.' + i); + } else { + paths.push(path + '.' + i); + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/omitUndefined.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/omitUndefined.js new file mode 100644 index 000000000..5c9eb8856 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/omitUndefined.js @@ -0,0 +1,20 @@ +'use strict'; + +module.exports = function omitUndefined(val) { + if (val == null || typeof val !== 'object') { + return val; + } + if (Array.isArray(val)) { + for (let i = val.length - 1; i >= 0; --i) { + if (val[i] === undefined) { + val.splice(i, 1); + } + } + } + for (const key of Object.keys(val)) { + if (val[key] === void 0) { + delete val[key]; + } + } + return val; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/once.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/once.js new file mode 100644 index 000000000..dfa5ee710 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/once.js @@ -0,0 +1,12 @@ +'use strict'; + +module.exports = function once(fn) { + let called = false; + return function() { + if (called) { + return; + } + called = true; + return fn.apply(null, arguments); + }; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/parallelLimit.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/parallelLimit.js new file mode 100644 index 000000000..9b07c028b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/parallelLimit.js @@ -0,0 +1,55 @@ +'use strict'; + +module.exports = parallelLimit; + +/*! + * ignore + */ + +function parallelLimit(fns, limit, callback) { + let numInProgress = 0; + let numFinished = 0; + let error = null; + + if (limit <= 0) { + throw new Error('Limit must be positive'); + } + + if (fns.length === 0) { + return callback(null, []); + } + + for (let i = 0; i < fns.length && i < limit; ++i) { + _start(); + } + + function _start() { + fns[numFinished + numInProgress](_done(numFinished + numInProgress)); + ++numInProgress; + } + + const results = []; + + function _done(index) { + return (err, res) => { + --numInProgress; + ++numFinished; + + if (error != null) { + return; + } + if (err != null) { + error = err; + return callback(error); + } + + results[index] = res; + + if (numFinished === fns.length) { + return callback(null, results); + } else if (numFinished + numInProgress < fns.length) { + _start(); + } + }; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/path/parentPaths.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/path/parentPaths.js new file mode 100644 index 000000000..6822c8cef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/path/parentPaths.js @@ -0,0 +1,18 @@ +'use strict'; + +const dotRE = /\./g; +module.exports = function parentPaths(path) { + if (path.indexOf('.') === -1) { + return [path]; + } + const pieces = path.split(dotRE); + const len = pieces.length; + const ret = new Array(len); + let cur = ''; + for (let i = 0; i < len; ++i) { + cur += (cur.length !== 0) ? '.' + pieces[i] : pieces[i]; + ret[i] = cur; + } + + return ret; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/path/setDottedPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/path/setDottedPath.js new file mode 100644 index 000000000..b17d54909 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/path/setDottedPath.js @@ -0,0 +1,33 @@ +'use strict'; + +const specialProperties = require('../specialProperties'); + + +module.exports = function setDottedPath(obj, path, val) { + if (path.indexOf('.') === -1) { + if (specialProperties.has(path)) { + return; + } + + obj[path] = val; + return; + } + const parts = path.split('.'); + + const last = parts.pop(); + let cur = obj; + for (const part of parts) { + if (specialProperties.has(part)) { + continue; + } + if (cur[part] == null) { + cur[part] = {}; + } + + cur = cur[part]; + } + + if (!specialProperties.has(last)) { + cur[last] = val; + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/pluralize.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/pluralize.js new file mode 100644 index 000000000..2f9cbf8a2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/pluralize.js @@ -0,0 +1,95 @@ +'use strict'; + +module.exports = pluralize; + +/** + * Pluralization rules. + */ + +exports.pluralization = [ + [/human$/gi, 'humans'], + [/(m)an$/gi, '$1en'], + [/(pe)rson$/gi, '$1ople'], + [/(child)$/gi, '$1ren'], + [/^(ox)$/gi, '$1en'], + [/(ax|test)is$/gi, '$1es'], + [/(octop|vir)us$/gi, '$1i'], + [/(alias|status)$/gi, '$1es'], + [/(bu)s$/gi, '$1ses'], + [/(buffal|tomat|potat)o$/gi, '$1oes'], + [/([ti])um$/gi, '$1a'], + [/sis$/gi, 'ses'], + [/(?:([^f])fe|([lr])f)$/gi, '$1$2ves'], + [/(hive)$/gi, '$1s'], + [/([^aeiouy]|qu)y$/gi, '$1ies'], + [/(x|ch|ss|sh)$/gi, '$1es'], + [/(matr|vert|ind)ix|ex$/gi, '$1ices'], + [/([m|l])ouse$/gi, '$1ice'], + [/(kn|w|l)ife$/gi, '$1ives'], + [/(quiz)$/gi, '$1zes'], + [/^goose$/i, 'geese'], + [/s$/gi, 's'], + [/([^a-z])$/, '$1'], + [/$/gi, 's'] +]; +const rules = exports.pluralization; + +/** + * Uncountable words. + * + * These words are applied while processing the argument to `toCollectionName`. + * @api public + */ + +exports.uncountables = [ + 'advice', + 'energy', + 'excretion', + 'digestion', + 'cooperation', + 'health', + 'justice', + 'labour', + 'machinery', + 'equipment', + 'information', + 'pollution', + 'sewage', + 'paper', + 'money', + 'species', + 'series', + 'rain', + 'rice', + 'fish', + 'sheep', + 'moose', + 'deer', + 'news', + 'expertise', + 'status', + 'media' +]; +const uncountables = exports.uncountables; + +/** + * Pluralize function. + * + * @author TJ Holowaychuk (extracted from _ext.js_) + * @param {String} string to pluralize + * @api private + */ + +function pluralize(str) { + let found; + str = str.toLowerCase(); + if (!~uncountables.indexOf(str)) { + found = rules.filter(function(rule) { + return str.match(rule[0]); + }); + if (found[0]) { + return str.replace(found[0][0], found[0][1]); + } + } + return str; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/assignRawDocsToIdStructure.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/assignRawDocsToIdStructure.js new file mode 100644 index 000000000..765d69f06 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/assignRawDocsToIdStructure.js @@ -0,0 +1,129 @@ +'use strict'; + +const clone = require('../../helpers/clone'); +const leanPopulateMap = require('./leanPopulateMap'); +const modelSymbol = require('../symbols').modelSymbol; +const utils = require('../../utils'); + +module.exports = assignRawDocsToIdStructure; + +const kHasArray = Symbol('mongoose#assignRawDocsToIdStructure#hasArray'); + +/** + * Assign `vals` returned by mongo query to the `rawIds` + * structure returned from utils.getVals() honoring + * query sort order if specified by user. + * + * This can be optimized. + * + * Rules: + * + * if the value of the path is not an array, use findOne rules, else find. + * for findOne the results are assigned directly to doc path (including null results). + * for find, if user specified sort order, results are assigned directly + * else documents are put back in original order of array if found in results + * + * @param {Array} rawIds + * @param {Array} resultDocs + * @param {Array} resultOrder + * @param {Object} options + * @param {Boolean} recursed + * @api private + */ + +function assignRawDocsToIdStructure(rawIds, resultDocs, resultOrder, options, recursed) { + // honor user specified sort order, unless we're populating a single + // virtual underneath an array (e.g. populating `employees.mostRecentShift` where + // `mostRecentShift` is a virtual with `justOne`) + const newOrder = []; + const sorting = options.isVirtual && options.justOne && rawIds.length > 1 + ? false : + options.sort && rawIds.length > 1; + const nullIfNotFound = options.$nullIfNotFound; + let doc; + let sid; + let id; + + if (utils.isMongooseArray(rawIds)) { + rawIds = rawIds.__array; + } + + let i = 0; + const len = rawIds.length; + + if (sorting && recursed && options[kHasArray] === undefined) { + options[kHasArray] = false; + for (const key in resultOrder) { + if (Array.isArray(resultOrder[key])) { + options[kHasArray] = true; + break; + } + } + } + + for (i = 0; i < len; ++i) { + id = rawIds[i]; + + if (Array.isArray(id)) { + // handle [ [id0, id2], [id3] ] + assignRawDocsToIdStructure(id, resultDocs, resultOrder, options, true); + newOrder.push(id); + continue; + } + + if (id === null && sorting === false) { + // keep nulls for findOne unless sorting, which always + // removes them (backward compat) + newOrder.push(id); + continue; + } + + sid = String(id); + doc = resultDocs[sid]; + // If user wants separate copies of same doc, use this option + if (options.clone && doc != null) { + if (options.lean) { + const _model = leanPopulateMap.get(doc); + doc = clone(doc); + leanPopulateMap.set(doc, _model); + } else { + doc = doc.constructor.hydrate(doc._doc); + } + } + + if (recursed) { + if (doc) { + if (sorting) { + const _resultOrder = resultOrder[sid]; + if (options[kHasArray]) { + // If result arrays, rely on the MongoDB server response for ordering + newOrder.push(doc); + } else { + newOrder[_resultOrder] = doc; + } + } else { + newOrder.push(doc); + } + } else if (id != null && id[modelSymbol] != null) { + newOrder.push(id); + } else { + newOrder.push(options.retainNullValues || nullIfNotFound ? null : id); + } + } else { + // apply findOne behavior - if document in results, assign, else assign null + newOrder[i] = doc || null; + } + } + + rawIds.length = 0; + if (newOrder.length) { + // reassign the documents based on corrected order + + // forEach skips over sparse entries in arrays so we + // can safely use this to our advantage dealing with sorted + // result sets too. + newOrder.forEach(function(doc, i) { + rawIds[i] = doc; + }); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/assignVals.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/assignVals.js new file mode 100644 index 000000000..9aff29fd5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/assignVals.js @@ -0,0 +1,347 @@ +'use strict'; + +const MongooseMap = require('../../types/map'); +const SkipPopulateValue = require('./skipPopulateValue'); +const assignRawDocsToIdStructure = require('./assignRawDocsToIdStructure'); +const get = require('../get'); +const getVirtual = require('./getVirtual'); +const leanPopulateMap = require('./leanPopulateMap'); +const lookupLocalFields = require('./lookupLocalFields'); +const markArraySubdocsPopulated = require('./markArraySubdocsPopulated'); +const mpath = require('mpath'); +const sift = require('sift').default; +const utils = require('../../utils'); +const { populateModelSymbol } = require('../symbols'); + +module.exports = function assignVals(o) { + // Options that aren't explicitly listed in `populateOptions` + const userOptions = Object.assign({}, get(o, 'allOptions.options.options'), get(o, 'allOptions.options')); + // `o.options` contains options explicitly listed in `populateOptions`, like + // `match` and `limit`. + const populateOptions = Object.assign({}, o.options, userOptions, { + justOne: o.justOne, + isVirtual: o.isVirtual + }); + populateOptions.$nullIfNotFound = o.isVirtual; + const populatedModel = o.populatedModel; + + const originalIds = [].concat(o.rawIds); + + // replace the original ids in our intermediate _ids structure + // with the documents found by query + o.allIds = [].concat(o.allIds); + assignRawDocsToIdStructure(o.rawIds, o.rawDocs, o.rawOrder, populateOptions); + + // now update the original documents being populated using the + // result structure that contains real documents. + const docs = o.docs; + const rawIds = o.rawIds; + const options = o.options; + const count = o.count && o.isVirtual; + let i; + let setValueIndex = 0; + + function setValue(val) { + ++setValueIndex; + if (count) { + return val; + } + if (val instanceof SkipPopulateValue) { + return val.val; + } + if (val === void 0) { + return val; + } + + const _allIds = o.allIds[i]; + + if (o.path.endsWith('.$*')) { + // Skip maps re: gh-12494 + return valueFilter(val, options, populateOptions, _allIds); + } + + if (o.justOne === true && Array.isArray(val)) { + // Might be an embedded discriminator (re: gh-9244) with multiple models, so make sure to pick the right + // model before assigning. + const ret = []; + for (const doc of val) { + const _docPopulatedModel = leanPopulateMap.get(doc); + if (_docPopulatedModel == null || _docPopulatedModel === populatedModel) { + ret.push(doc); + } + } + // Since we don't want to have to create a new mongoosearray, make sure to + // modify the array in place + while (val.length > ret.length) { + Array.prototype.pop.apply(val, []); + } + for (let i = 0; i < ret.length; ++i) { + val[i] = ret[i]; + } + + return valueFilter(val[0], options, populateOptions, _allIds); + } else if (o.justOne === false && !Array.isArray(val)) { + return valueFilter([val], options, populateOptions, _allIds); + } else if (o.justOne === true && !Array.isArray(val) && Array.isArray(_allIds)) { + return valueFilter(val, options, populateOptions, val == null ? val : _allIds[setValueIndex - 1]); + } + return valueFilter(val, options, populateOptions, _allIds); + } + + for (i = 0; i < docs.length; ++i) { + setValueIndex = 0; + const _path = o.path.endsWith('.$*') ? o.path.slice(0, -3) : o.path; + const existingVal = mpath.get(_path, docs[i], lookupLocalFields); + if (existingVal == null && !getVirtual(o.originalModel.schema, _path)) { + continue; + } + + let valueToSet; + if (count) { + valueToSet = numDocs(rawIds[i]); + } else if (Array.isArray(o.match)) { + valueToSet = Array.isArray(rawIds[i]) ? + rawIds[i].filter(v => v == null || sift(o.match[i])(v)) : + [rawIds[i]].filter(v => v == null || sift(o.match[i])(v))[0]; + } else { + valueToSet = rawIds[i]; + } + + // If we're populating a map, the existing value will be an object, so + // we need to transform again + const originalSchema = o.originalModel.schema; + const isDoc = get(docs[i], '$__', null) != null; + let isMap = isDoc ? + existingVal instanceof Map : + utils.isPOJO(existingVal); + // If we pass the first check, also make sure the local field's schematype + // is map (re: gh-6460) + isMap = isMap && get(originalSchema._getSchema(_path), '$isSchemaMap'); + if (!o.isVirtual && isMap) { + const _keys = existingVal instanceof Map ? + Array.from(existingVal.keys()) : + Object.keys(existingVal); + valueToSet = valueToSet.reduce((cur, v, i) => { + cur.set(_keys[i], v); + return cur; + }, new Map()); + } + + if (isDoc && Array.isArray(valueToSet)) { + for (const val of valueToSet) { + if (val != null && val.$__ != null) { + val.$__.parent = docs[i]; + } + } + } else if (isDoc && valueToSet != null && valueToSet.$__ != null) { + valueToSet.$__.parent = docs[i]; + } + + if (o.isVirtual && isDoc) { + docs[i].$populated(_path, o.justOne ? originalIds[0] : originalIds, o.allOptions); + // If virtual populate and doc is already init-ed, need to walk through + // the actual doc to set rather than setting `_doc` directly + if (Array.isArray(valueToSet)) { + valueToSet = valueToSet.map(v => v == null ? void 0 : v); + } + mpath.set(_path, valueToSet, docs[i], void 0, setValue, false); + continue; + } + + const parts = _path.split('.'); + let cur = docs[i]; + for (let j = 0; j < parts.length - 1; ++j) { + // If we get to an array with a dotted path, like `arr.foo`, don't set + // `foo` on the array. + if (Array.isArray(cur) && !utils.isArrayIndex(parts[j])) { + break; + } + + if (parts[j] === '$*') { + break; + } + + if (cur[parts[j]] == null) { + // If nothing to set, avoid creating an unnecessary array. Otherwise + // we'll end up with a single doc in the array with only defaults. + // See gh-8342, gh-8455 + const curPath = parts.slice(0, j + 1).join('.'); + const schematype = originalSchema._getSchema(curPath); + if (valueToSet == null && schematype != null && schematype.$isMongooseArray) { + break; + } + cur[parts[j]] = {}; + } + cur = cur[parts[j]]; + // If the property in MongoDB is a primitive, we won't be able to populate + // the nested path, so skip it. See gh-7545 + if (typeof cur !== 'object') { + break; + } + } + if (docs[i].$__) { + o.allOptions.options[populateModelSymbol] = o.allOptions.model; + docs[i].$populated(_path, o.unpopulatedValues[i], o.allOptions.options); + + if (valueToSet != null && valueToSet.$__ != null) { + valueToSet.$__.wasPopulated = { value: o.unpopulatedValues[i] }; + } + + if (valueToSet instanceof Map && !valueToSet.$isMongooseMap) { + valueToSet = new MongooseMap(valueToSet, _path, docs[i], docs[i].schema.path(_path).$__schemaType); + } + } + + // If lean, need to check that each individual virtual respects + // `justOne`, because you may have a populated virtual with `justOne` + // underneath an array. See gh-6867 + mpath.set(_path, valueToSet, docs[i], lookupLocalFields, setValue, false); + + if (docs[i].$__) { + markArraySubdocsPopulated(docs[i], [o.allOptions.options]); + } + } +}; + +function numDocs(v) { + if (Array.isArray(v)) { + // If setting underneath an array of populated subdocs, we may have an + // array of arrays. See gh-7573 + if (v.some(el => Array.isArray(el) || el === null)) { + return v.map(el => { + if (el == null) { + return 0; + } + if (Array.isArray(el)) { + return el.filter(el => el != null).length; + } + return 1; + }); + } + return v.filter(el => el != null).length; + } + return v == null ? 0 : 1; +} + +/** + * 1) Apply backwards compatible find/findOne behavior to sub documents + * + * find logic: + * a) filter out non-documents + * b) remove _id from sub docs when user specified + * + * findOne + * a) if no doc found, set to null + * b) remove _id from sub docs when user specified + * + * 2) Remove _ids when specified by users query. + * + * background: + * _ids are left in the query even when user excludes them so + * that population mapping can occur. + * @param {Any} val + * @param {Object} assignmentOpts + * @param {Object} populateOptions + * @param {Function} [populateOptions.transform] + * @param {Boolean} allIds + * @api private + */ + +function valueFilter(val, assignmentOpts, populateOptions, allIds) { + const userSpecifiedTransform = typeof populateOptions.transform === 'function'; + const transform = userSpecifiedTransform ? populateOptions.transform : noop; + if (Array.isArray(val)) { + // find logic + const ret = []; + const numValues = val.length; + for (let i = 0; i < numValues; ++i) { + let subdoc = val[i]; + const _allIds = Array.isArray(allIds) ? allIds[i] : allIds; + if (!isPopulatedObject(subdoc) && (!populateOptions.retainNullValues || subdoc != null) && !userSpecifiedTransform) { + continue; + } else if (!populateOptions.retainNullValues && subdoc == null) { + continue; + } else if (userSpecifiedTransform) { + subdoc = transform(isPopulatedObject(subdoc) ? subdoc : null, _allIds); + } + maybeRemoveId(subdoc, assignmentOpts); + ret.push(subdoc); + if (assignmentOpts.originalLimit && + ret.length >= assignmentOpts.originalLimit) { + break; + } + } + + const rLen = ret.length; + // Since we don't want to have to create a new mongoosearray, make sure to + // modify the array in place + while (val.length > rLen) { + Array.prototype.pop.apply(val, []); + } + let i = 0; + if (utils.isMongooseArray(val)) { + for (i = 0; i < rLen; ++i) { + val.set(i, ret[i], true); + } + } else { + for (i = 0; i < rLen; ++i) { + val[i] = ret[i]; + } + } + return val; + } + + // findOne + if (isPopulatedObject(val) || utils.isPOJO(val)) { + maybeRemoveId(val, assignmentOpts); + return transform(val, allIds); + } + if (val instanceof Map) { + return val; + } + + if (populateOptions.justOne === false) { + return []; + } + + return val == null ? transform(val, allIds) : transform(null, allIds); +} + +/** + * Remove _id from `subdoc` if user specified "lean" query option + * @param {Document} subdoc + * @param {Object} assignmentOpts + * @api private + */ + +function maybeRemoveId(subdoc, assignmentOpts) { + if (subdoc != null && assignmentOpts.excludeId) { + if (typeof subdoc.$__setValue === 'function') { + delete subdoc._doc._id; + } else { + delete subdoc._id; + } + } +} + +/** + * Determine if `obj` is something we can set a populated path to. Can be a + * document, a lean document, or an array/map that contains docs. + * @param {Any} obj + * @api private + */ + +function isPopulatedObject(obj) { + if (obj == null) { + return false; + } + + return Array.isArray(obj) || + obj.$isMongooseMap || + obj.$__ != null || + leanPopulateMap.has(obj); +} + +function noop(v) { + return v; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/createPopulateQueryFilter.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/createPopulateQueryFilter.js new file mode 100644 index 000000000..47509a356 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/createPopulateQueryFilter.js @@ -0,0 +1,97 @@ +'use strict'; + +const SkipPopulateValue = require('./skipPopulateValue'); +const parentPaths = require('../path/parentPaths'); +const { trusted } = require('../query/trusted'); +const hasDollarKeys = require('../query/hasDollarKeys'); + +module.exports = function createPopulateQueryFilter(ids, _match, _foreignField, model, skipInvalidIds) { + const match = _formatMatch(_match); + + if (_foreignField.size === 1) { + const foreignField = Array.from(_foreignField)[0]; + const foreignSchemaType = model.schema.path(foreignField); + if (foreignField !== '_id' || !match['_id']) { + ids = _filterInvalidIds(ids, foreignSchemaType, skipInvalidIds); + match[foreignField] = trusted({ $in: ids }); + } else if (foreignField === '_id' && match['_id']) { + const userSpecifiedMatch = hasDollarKeys(match[foreignField]) ? + match[foreignField] : + { $eq: match[foreignField] }; + match[foreignField] = { ...trusted({ $in: ids }), ...userSpecifiedMatch }; + } + + const _parentPaths = parentPaths(foreignField); + for (let i = 0; i < _parentPaths.length - 1; ++i) { + const cur = _parentPaths[i]; + if (match[cur] != null && match[cur].$elemMatch != null) { + match[cur].$elemMatch[foreignField.slice(cur.length + 1)] = trusted({ $in: ids }); + delete match[foreignField]; + break; + } + } + } else { + const $or = []; + if (Array.isArray(match.$or)) { + match.$and = [{ $or: match.$or }, { $or: $or }]; + delete match.$or; + } else { + match.$or = $or; + } + for (const foreignField of _foreignField) { + if (foreignField !== '_id' || !match['_id']) { + const foreignSchemaType = model.schema.path(foreignField); + ids = _filterInvalidIds(ids, foreignSchemaType, skipInvalidIds); + $or.push({ [foreignField]: { $in: ids } }); + } else if (foreignField === '_id' && match['_id']) { + const userSpecifiedMatch = hasDollarKeys(match[foreignField]) ? + match[foreignField] : + { $eq: match[foreignField] }; + match[foreignField] = { ...trusted({ $in: ids }), ...userSpecifiedMatch }; + } + } + } + + return match; +}; + +/** + * Optionally filter out invalid ids that don't conform to foreign field's schema + * to avoid cast errors (gh-7706) + * @param {Array} ids + * @param {SchemaType} foreignSchemaType + * @param {Boolean} [skipInvalidIds] + * @api private + */ + +function _filterInvalidIds(ids, foreignSchemaType, skipInvalidIds) { + ids = ids.filter(v => !(v instanceof SkipPopulateValue)); + if (!skipInvalidIds) { + return ids; + } + return ids.filter(id => { + try { + foreignSchemaType.cast(id); + return true; + } catch (err) { + return false; + } + }); +} + +/** + * Format `mod.match` given that it may be an array that we need to $or if + * the client has multiple docs with match functions + * @param {Array|Any} match + * @api private + */ + +function _formatMatch(match) { + if (Array.isArray(match)) { + if (match.length > 1) { + return { $or: [].concat(match.map(m => Object.assign({}, m))) }; + } + return Object.assign({}, match[0]); + } + return Object.assign({}, match); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getModelsMapForPopulate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getModelsMapForPopulate.js new file mode 100644 index 000000000..276698217 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getModelsMapForPopulate.js @@ -0,0 +1,721 @@ +'use strict'; + +const MongooseError = require('../../error/index'); +const SkipPopulateValue = require('./skipPopulateValue'); +const clone = require('../clone'); +const get = require('../get'); +const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue'); +const getConstructorName = require('../getConstructorName'); +const getSchemaTypes = require('./getSchemaTypes'); +const getVirtual = require('./getVirtual'); +const lookupLocalFields = require('./lookupLocalFields'); +const mpath = require('mpath'); +const modelNamesFromRefPath = require('./modelNamesFromRefPath'); +const utils = require('../../utils'); + +const modelSymbol = require('../symbols').modelSymbol; +const populateModelSymbol = require('../symbols').populateModelSymbol; +const schemaMixedSymbol = require('../../schema/symbols').schemaMixedSymbol; +const StrictPopulate = require('../../error/strictPopulate'); + +module.exports = function getModelsMapForPopulate(model, docs, options) { + let doc; + const len = docs.length; + const map = []; + const modelNameFromQuery = options.model && options.model.modelName || options.model; + let schema; + let refPath; + let modelNames; + const available = {}; + + const modelSchema = model.schema; + + // Populating a nested path should always be a no-op re: #9073. + // People shouldn't do this, but apparently they do. + if (options._localModel != null && options._localModel.schema.nested[options.path]) { + return []; + } + + const _virtualRes = getVirtual(model.schema, options.path); + const virtual = _virtualRes == null ? null : _virtualRes.virtual; + if (virtual != null) { + return _virtualPopulate(model, docs, options, _virtualRes); + } + + let allSchemaTypes = getSchemaTypes(model, modelSchema, null, options.path); + allSchemaTypes = Array.isArray(allSchemaTypes) ? allSchemaTypes : [allSchemaTypes].filter(v => v != null); + + const isStrictPopulateDisabled = options.strictPopulate === false || options.options?.strictPopulate === false; + if (!isStrictPopulateDisabled && allSchemaTypes.length === 0 && options._localModel != null) { + return new StrictPopulate(options._fullPath || options.path); + } + + for (let i = 0; i < len; i++) { + doc = docs[i]; + let justOne = null; + + const docSchema = doc != null && doc.$__ != null ? doc.$__schema : modelSchema; + schema = getSchemaTypes(model, docSchema, doc, options.path); + + // Special case: populating a path that's a DocumentArray unless + // there's an explicit `ref` or `refPath` re: gh-8946 + if (schema != null && + schema.$isMongooseDocumentArray && + schema.options.ref == null && + schema.options.refPath == null) { + continue; + } + const isUnderneathDocArray = schema && schema.$parentSchemaDocArray; + if (isUnderneathDocArray && get(options, 'options.sort') != null) { + return new MongooseError('Cannot populate with `sort` on path ' + options.path + + ' because it is a subproperty of a document array'); + } + + modelNames = null; + let isRefPath = false; + let normalizedRefPath = null; + let schemaOptions = null; + let modelNamesInOrder = null; + + if (schema != null && schema.instance === 'Embedded') { + if (schema.options.ref) { + const data = { + localField: options.path + '._id', + foreignField: '_id', + justOne: true + }; + const res = _getModelNames(doc, schema, modelNameFromQuery, model); + + const unpopulatedValue = mpath.get(options.path, doc); + const id = mpath.get('_id', unpopulatedValue); + addModelNamesToMap(model, map, available, res.modelNames, options, data, id, doc, schemaOptions, unpopulatedValue); + } + // No-op if no `ref` set. See gh-11538 + continue; + } + + if (Array.isArray(schema)) { + const schemasArray = schema; + for (const _schema of schemasArray) { + let _modelNames; + let res; + try { + res = _getModelNames(doc, _schema, modelNameFromQuery, model); + _modelNames = res.modelNames; + isRefPath = isRefPath || res.isRefPath; + normalizedRefPath = normalizedRefPath || res.refPath; + justOne = res.justOne; + } catch (error) { + return error; + } + + if (isRefPath && !res.isRefPath) { + continue; + } + if (!_modelNames) { + continue; + } + modelNames = modelNames || []; + for (const modelName of _modelNames) { + if (modelNames.indexOf(modelName) === -1) { + modelNames.push(modelName); + } + } + } + } else { + try { + const res = _getModelNames(doc, schema, modelNameFromQuery, model); + modelNames = res.modelNames; + isRefPath = res.isRefPath; + normalizedRefPath = normalizedRefPath || res.refPath; + justOne = res.justOne; + schemaOptions = get(schema, 'options.populate', null); + // Dedupe, because `refPath` can return duplicates of the same model name, + // and that causes perf issues. + if (isRefPath) { + modelNamesInOrder = modelNames; + modelNames = Array.from(new Set(modelNames)); + } + } catch (error) { + return error; + } + + if (!modelNames) { + continue; + } + } + + const data = {}; + const localField = options.path; + const foreignField = '_id'; + + // `justOne = null` means we don't know from the schema whether the end + // result should be an array or a single doc. This can result from + // populating a POJO using `Model.populate()` + if ('justOne' in options && options.justOne !== void 0) { + justOne = options.justOne; + } else if (schema && !schema[schemaMixedSymbol]) { + // Skip Mixed types because we explicitly don't do casting on those. + if (options.path.endsWith('.' + schema.path) || options.path === schema.path) { + justOne = Array.isArray(schema) ? + schema.every(schema => !schema.$isMongooseArray) : + !schema.$isMongooseArray; + } + } + + if (!modelNames) { + continue; + } + + data.isVirtual = false; + data.justOne = justOne; + data.localField = localField; + data.foreignField = foreignField; + + // Get local fields + const ret = _getLocalFieldValues(doc, localField, model, options, null, schema); + + const id = String(utils.getValue(foreignField, doc)); + options._docs[id] = Array.isArray(ret) ? ret.slice() : ret; + + let match = get(options, 'match', null); + + const hasMatchFunction = typeof match === 'function'; + if (hasMatchFunction) { + match = match.call(doc, doc); + } + data.match = match; + data.hasMatchFunction = hasMatchFunction; + data.isRefPath = isRefPath; + data.modelNamesInOrder = modelNamesInOrder; + + if (isRefPath) { + const embeddedDiscriminatorModelNames = _findRefPathForDiscriminators(doc, + modelSchema, data, options, normalizedRefPath, ret); + + modelNames = embeddedDiscriminatorModelNames || modelNames; + } + + try { + addModelNamesToMap(model, map, available, modelNames, options, data, ret, doc, schemaOptions); + } catch (err) { + return err; + } + } + return map; + + function _getModelNames(doc, schema, modelNameFromQuery, model) { + let modelNames; + let isRefPath = false; + let justOne = null; + + const originalSchema = schema; + if (schema && schema.instance === 'Array') { + schema = schema.caster; + } + if (schema && schema.$isSchemaMap) { + schema = schema.$__schemaType; + } + + const ref = schema && schema.options && schema.options.ref; + refPath = schema && schema.options && schema.options.refPath; + if (schema != null && + schema[schemaMixedSymbol] && + !ref && + !refPath && + !modelNameFromQuery) { + return { modelNames: null }; + } + + if (modelNameFromQuery) { + modelNames = [modelNameFromQuery]; // query options + } else if (refPath != null) { + if (typeof refPath === 'function') { + const subdocPath = options.path.slice(0, options.path.length - schema.path.length - 1); + const vals = mpath.get(subdocPath, doc, lookupLocalFields); + const subdocsBeingPopulated = Array.isArray(vals) ? + utils.array.flatten(vals) : + (vals ? [vals] : []); + + modelNames = new Set(); + for (const subdoc of subdocsBeingPopulated) { + refPath = refPath.call(subdoc, subdoc, options.path); + modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection). + forEach(name => modelNames.add(name)); + } + modelNames = Array.from(modelNames); + } else { + modelNames = modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection); + } + + isRefPath = true; + } else { + let ref; + let refPath; + let schemaForCurrentDoc; + let discriminatorValue; + let modelForCurrentDoc = model; + const discriminatorKey = model.schema.options.discriminatorKey; + + if (!schema && discriminatorKey && (discriminatorValue = utils.getValue(discriminatorKey, doc))) { + // `modelNameForFind` is the discriminator value, so we might need + // find the discriminated model name + const discriminatorModel = getDiscriminatorByValue(model.discriminators, discriminatorValue) || model; + if (discriminatorModel != null) { + modelForCurrentDoc = discriminatorModel; + } else { + try { + modelForCurrentDoc = _getModelFromConn(model.db, discriminatorValue); + } catch (error) { + return error; + } + } + + schemaForCurrentDoc = modelForCurrentDoc.schema._getSchema(options.path); + + if (schemaForCurrentDoc && schemaForCurrentDoc.caster) { + schemaForCurrentDoc = schemaForCurrentDoc.caster; + } + } else { + schemaForCurrentDoc = schema; + } + + if (originalSchema && originalSchema.path.endsWith('.$*')) { + justOne = !originalSchema.$isMongooseArray && !originalSchema._arrayPath; + } else if (schemaForCurrentDoc != null) { + justOne = !schemaForCurrentDoc.$isMongooseArray && !schemaForCurrentDoc._arrayPath; + } + + if ((ref = get(schemaForCurrentDoc, 'options.ref')) != null) { + if (schemaForCurrentDoc != null && + typeof ref === 'function' && + options.path.endsWith('.' + schemaForCurrentDoc.path)) { + // Ensure correct context for ref functions: subdoc, not top-level doc. See gh-8469 + modelNames = new Set(); + + const subdocPath = options.path.slice(0, options.path.length - schemaForCurrentDoc.path.length - 1); + const vals = mpath.get(subdocPath, doc, lookupLocalFields); + const subdocsBeingPopulated = Array.isArray(vals) ? + utils.array.flatten(vals) : + (vals ? [vals] : []); + for (const subdoc of subdocsBeingPopulated) { + modelNames.add(handleRefFunction(ref, subdoc)); + } + + if (subdocsBeingPopulated.length === 0) { + modelNames = [handleRefFunction(ref, doc)]; + } else { + modelNames = Array.from(modelNames); + } + } else { + ref = handleRefFunction(ref, doc); + modelNames = [ref]; + } + } else if ((schemaForCurrentDoc = get(schema, 'options.refPath')) != null) { + isRefPath = true; + if (typeof refPath === 'function') { + const subdocPath = options.path.slice(0, options.path.length - schemaForCurrentDoc.path.length - 1); + const vals = mpath.get(subdocPath, doc, lookupLocalFields); + const subdocsBeingPopulated = Array.isArray(vals) ? + utils.array.flatten(vals) : + (vals ? [vals] : []); + + modelNames = new Set(); + for (const subdoc of subdocsBeingPopulated) { + refPath = refPath.call(subdoc, subdoc, options.path); + modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection). + forEach(name => modelNames.add(name)); + } + modelNames = Array.from(modelNames); + } else { + modelNames = modelNamesFromRefPath(refPath, doc, options.path, modelSchema, options._queryProjection); + } + } + } + + if (!modelNames) { + // `Model.populate()` on a POJO with no known local model. Default to using the `Model` + if (options._localModel == null) { + modelNames = [model.modelName]; + } else { + return { modelNames: modelNames, justOne: justOne, isRefPath: isRefPath, refPath: refPath }; + } + } + + if (!Array.isArray(modelNames)) { + modelNames = [modelNames]; + } + + return { modelNames: modelNames, justOne: justOne, isRefPath: isRefPath, refPath: refPath }; + } +}; + +/*! + * ignore + */ + +function _virtualPopulate(model, docs, options, _virtualRes) { + const map = []; + const available = {}; + const virtual = _virtualRes.virtual; + + for (const doc of docs) { + let modelNames = null; + const data = {}; + + // localField and foreignField + let localField; + const virtualPrefix = _virtualRes.nestedSchemaPath ? + _virtualRes.nestedSchemaPath + '.' : ''; + if (typeof options.localField === 'string') { + localField = options.localField; + } else if (typeof virtual.options.localField === 'function') { + localField = virtualPrefix + virtual.options.localField.call(doc, doc); + } else if (Array.isArray(virtual.options.localField)) { + localField = virtual.options.localField.map(field => virtualPrefix + field); + } else { + localField = virtualPrefix + virtual.options.localField; + } + data.count = virtual.options.count; + + if (virtual.options.skip != null && !options.hasOwnProperty('skip')) { + options.skip = virtual.options.skip; + } + if (virtual.options.limit != null && !options.hasOwnProperty('limit')) { + options.limit = virtual.options.limit; + } + if (virtual.options.perDocumentLimit != null && !options.hasOwnProperty('perDocumentLimit')) { + options.perDocumentLimit = virtual.options.perDocumentLimit; + } + let foreignField = virtual.options.foreignField; + + if (!localField || !foreignField) { + return new MongooseError(`Cannot populate virtual \`${options.path}\` on model \`${model.modelName}\`, because options \`localField\` and / or \`foreignField\` are missing`); + } + + if (typeof localField === 'function') { + localField = localField.call(doc, doc); + } + if (typeof foreignField === 'function') { + foreignField = foreignField.call(doc, doc); + } + + data.isRefPath = false; + + // `justOne = null` means we don't know from the schema whether the end + // result should be an array or a single doc. This can result from + // populating a POJO using `Model.populate()` + let justOne = null; + if ('justOne' in options && options.justOne !== void 0) { + justOne = options.justOne; + } + + modelNames = virtual._getModelNamesForPopulate(doc); + if (virtual.options.refPath) { + justOne = !!virtual.options.justOne; + data.isRefPath = true; + } else if (virtual.options.ref) { + justOne = !!virtual.options.justOne; + } + + data.isVirtual = true; + data.virtual = virtual; + data.justOne = justOne; + + // `match` + const baseMatch = get(data, 'virtual.options.match', null) || + get(data, 'virtual.options.options.match', null); + let match = get(options, 'match', null) || baseMatch; + + let hasMatchFunction = typeof match === 'function'; + if (hasMatchFunction) { + match = match.call(doc, doc, data.virtual); + } + + if (Array.isArray(localField) && Array.isArray(foreignField) && localField.length === foreignField.length) { + match = Object.assign({}, match); + for (let i = 1; i < localField.length; ++i) { + match[foreignField[i]] = convertTo_id(mpath.get(localField[i], doc, lookupLocalFields), model.schema); + hasMatchFunction = true; + } + + localField = localField[0]; + foreignField = foreignField[0]; + } + data.localField = localField; + data.foreignField = foreignField; + data.match = match; + data.hasMatchFunction = hasMatchFunction; + + // Get local fields + const ret = _getLocalFieldValues(doc, localField, model, options, virtual); + + try { + addModelNamesToMap(model, map, available, modelNames, options, data, ret, doc); + } catch (err) { + return err; + } + } + + return map; +} + +/*! + * ignore + */ + +function addModelNamesToMap(model, map, available, modelNames, options, data, ret, doc, schemaOptions, unpopulatedValue) { + // `PopulateOptions#connection`: if the model is passed as a string, the + // connection matters because different connections have different models. + const connection = options.connection != null ? options.connection : model.db; + + unpopulatedValue = unpopulatedValue === void 0 ? ret : unpopulatedValue; + if (Array.isArray(unpopulatedValue)) { + unpopulatedValue = utils.cloneArrays(unpopulatedValue); + } + + if (modelNames == null) { + return; + } + + let k = modelNames.length; + while (k--) { + let modelName = modelNames[k]; + if (modelName == null) { + continue; + } + + let Model; + if (options.model && options.model[modelSymbol]) { + Model = options.model; + } else if (modelName[modelSymbol]) { + Model = modelName; + modelName = Model.modelName; + } else { + try { + Model = _getModelFromConn(connection, modelName); + } catch (err) { + if (ret !== void 0) { + throw err; + } + Model = null; + } + } + + let ids = ret; + const flat = Array.isArray(ret) ? utils.array.flatten(ret) : []; + + const modelNamesForRefPath = data.modelNamesInOrder ? data.modelNamesInOrder : modelNames; + if (data.isRefPath && Array.isArray(ret) && flat.length === modelNamesForRefPath.length) { + ids = flat.filter((val, i) => modelNamesForRefPath[i] === modelName); + } + + const perDocumentLimit = options.perDocumentLimit == null ? + get(options, 'options.perDocumentLimit', null) : + options.perDocumentLimit; + + if (!available[modelName] || perDocumentLimit != null) { + const currentOptions = { + model: Model + }; + if (data.isVirtual && get(data.virtual, 'options.options')) { + currentOptions.options = clone(data.virtual.options.options); + } else if (schemaOptions != null) { + currentOptions.options = Object.assign({}, schemaOptions); + } + utils.merge(currentOptions, options); + + // Used internally for checking what model was used to populate this + // path. + options[populateModelSymbol] = Model; + currentOptions[populateModelSymbol] = Model; + available[modelName] = { + model: Model, + options: currentOptions, + match: data.hasMatchFunction ? [data.match] : data.match, + docs: [doc], + ids: [ids], + allIds: [ret], + unpopulatedValues: [unpopulatedValue], + localField: new Set([data.localField]), + foreignField: new Set([data.foreignField]), + justOne: data.justOne, + isVirtual: data.isVirtual, + virtual: data.virtual, + count: data.count, + [populateModelSymbol]: Model + }; + map.push(available[modelName]); + } else { + available[modelName].localField.add(data.localField); + available[modelName].foreignField.add(data.foreignField); + available[modelName].docs.push(doc); + available[modelName].ids.push(ids); + available[modelName].allIds.push(ret); + available[modelName].unpopulatedValues.push(unpopulatedValue); + if (data.hasMatchFunction) { + available[modelName].match.push(data.match); + } + } + } +} + +function _getModelFromConn(conn, modelName) { + /* If this connection has a parent from `useDb()`, bubble up to parent's models */ + if (conn.models[modelName] == null && conn._parent != null) { + return _getModelFromConn(conn._parent, modelName); + } + + return conn.model(modelName); +} + +/*! + * ignore + */ + +function handleRefFunction(ref, doc) { + if (typeof ref === 'function' && !ref[modelSymbol]) { + return ref.call(doc, doc); + } + return ref; +} + +/*! + * ignore + */ + +function _getLocalFieldValues(doc, localField, model, options, virtual, schema) { + // Get Local fields + const localFieldPathType = model.schema._getPathType(localField); + const localFieldPath = localFieldPathType === 'real' ? + model.schema.path(localField) : + localFieldPathType.schema; + const localFieldGetters = localFieldPath && localFieldPath.getters ? + localFieldPath.getters : []; + + localField = localFieldPath != null && localFieldPath.instance === 'Embedded' ? localField + '._id' : localField; + + const _populateOptions = get(options, 'options', {}); + + const getters = 'getters' in _populateOptions ? + _populateOptions.getters : + get(virtual, 'options.getters', false); + if (localFieldGetters.length !== 0 && getters) { + const hydratedDoc = (doc.$__ != null) ? doc : model.hydrate(doc); + const localFieldValue = utils.getValue(localField, doc); + if (Array.isArray(localFieldValue)) { + const localFieldHydratedValue = utils.getValue(localField.split('.').slice(0, -1), hydratedDoc); + return localFieldValue.map((localFieldArrVal, localFieldArrIndex) => + localFieldPath.applyGetters(localFieldArrVal, localFieldHydratedValue[localFieldArrIndex])); + } else { + return localFieldPath.applyGetters(localFieldValue, hydratedDoc); + } + } else { + return convertTo_id(mpath.get(localField, doc, lookupLocalFields), schema); + } +} + +/** + * Retrieve the _id of `val` if a Document or Array of Documents. + * + * @param {Array|Document|Any} val + * @param {Schema} schema + * @return {Array|Document|Any} + * @api private + */ + +function convertTo_id(val, schema) { + if (val != null && val.$__ != null) { + return val._id; + } + if (val != null && val._id != null && (schema == null || !schema.$isSchemaMap)) { + return val._id; + } + + if (Array.isArray(val)) { + const rawVal = val.__array != null ? val.__array : val; + for (let i = 0; i < rawVal.length; ++i) { + if (rawVal[i] != null && rawVal[i].$__ != null) { + rawVal[i] = rawVal[i]._id; + } + } + if (utils.isMongooseArray(val) && val.$schema()) { + return val.$schema()._castForPopulate(val, val.$parent()); + } + + return [].concat(val); + } + + // `populate('map')` may be an object if populating on a doc that hasn't + // been hydrated yet + if (getConstructorName(val) === 'Object' && + // The intent here is we should only flatten the object if we expect + // to get a Map in the end. Avoid doing this for mixed types. + (schema == null || schema[schemaMixedSymbol] == null)) { + const ret = []; + for (const key of Object.keys(val)) { + ret.push(val[key]); + } + return ret; + } + // If doc has already been hydrated, e.g. `doc.populate('map')` + // then `val` will already be a map + if (val instanceof Map) { + return Array.from(val.values()); + } + + return val; +} + +/*! + * ignore + */ + +function _findRefPathForDiscriminators(doc, modelSchema, data, options, normalizedRefPath, ret) { + // Re: gh-8452. Embedded discriminators may not have `refPath`, so clear + // out embedded discriminator docs that don't have a `refPath` on the + // populated path. + if (!data.isRefPath || normalizedRefPath == null) { + return; + } + + const pieces = normalizedRefPath.split('.'); + let cur = ''; + let modelNames = void 0; + for (let i = 0; i < pieces.length; ++i) { + const piece = pieces[i]; + cur = cur + (cur.length === 0 ? '' : '.') + piece; + const schematype = modelSchema.path(cur); + if (schematype != null && + schematype.$isMongooseArray && + schematype.caster.discriminators != null && + Object.keys(schematype.caster.discriminators).length !== 0) { + const subdocs = utils.getValue(cur, doc); + const remnant = options.path.substring(cur.length + 1); + const discriminatorKey = schematype.caster.schema.options.discriminatorKey; + modelNames = []; + for (const subdoc of subdocs) { + const discriminatorName = utils.getValue(discriminatorKey, subdoc); + const discriminator = schematype.caster.discriminators[discriminatorName]; + const discriminatorSchema = discriminator && discriminator.schema; + if (discriminatorSchema == null) { + continue; + } + const _path = discriminatorSchema.path(remnant); + if (_path == null || _path.options.refPath == null) { + const docValue = utils.getValue(data.localField.substring(cur.length + 1), subdoc); + ret.forEach((v, i) => { + if (v === docValue) { + ret[i] = SkipPopulateValue(v); + } + }); + continue; + } + const modelName = utils.getValue(pieces.slice(i + 1).join('.'), subdoc); + modelNames.push(modelName); + } + } + } + + return modelNames; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getSchemaTypes.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getSchemaTypes.js new file mode 100644 index 000000000..8cbbcafa8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getSchemaTypes.js @@ -0,0 +1,229 @@ +'use strict'; + +/*! + * ignore + */ + +const Mixed = require('../../schema/mixed'); +const get = require('../get'); +const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue'); +const leanPopulateMap = require('./leanPopulateMap'); +const mpath = require('mpath'); + +const populateModelSymbol = require('../symbols').populateModelSymbol; + +/** + * Given a model and its schema, find all possible schema types for `path`, + * including searching through discriminators. If `doc` is specified, will + * use the doc's values for discriminator keys when searching, otherwise + * will search all discriminators. + * + * @param {Model} model + * @param {Schema} schema + * @param {Object} doc POJO + * @param {string} path + * @api private + */ + +module.exports = function getSchemaTypes(model, schema, doc, path) { + const pathschema = schema.path(path); + const topLevelDoc = doc; + if (pathschema) { + return pathschema; + } + + const discriminatorKey = schema.discriminatorMapping && + schema.discriminatorMapping.key; + if (discriminatorKey && model != null) { + if (doc != null && doc[discriminatorKey] != null) { + const discriminator = getDiscriminatorByValue(model.discriminators, doc[discriminatorKey]); + schema = discriminator ? discriminator.schema : schema; + } else if (model.discriminators != null) { + return Object.keys(model.discriminators).reduce((arr, name) => { + const disc = model.discriminators[name]; + return arr.concat(getSchemaTypes(disc, disc.schema, null, path)); + }, []); + } + } + + function search(parts, schema, subdoc, nestedPath) { + let p = parts.length + 1; + let foundschema; + let trypath; + + while (p--) { + trypath = parts.slice(0, p).join('.'); + foundschema = schema.path(trypath); + if (foundschema == null) { + continue; + } + + if (foundschema.caster) { + // array of Mixed? + if (foundschema.caster instanceof Mixed) { + return foundschema.caster; + } + + let schemas = null; + if (foundschema.schema != null && foundschema.schema.discriminators != null) { + const discriminators = foundschema.schema.discriminators; + const discriminatorKeyPath = trypath + '.' + + foundschema.schema.options.discriminatorKey; + const keys = subdoc ? mpath.get(discriminatorKeyPath, subdoc) || [] : []; + schemas = Object.keys(discriminators). + reduce(function(cur, discriminator) { + const tiedValue = discriminators[discriminator].discriminatorMapping.value; + if (doc == null || keys.indexOf(discriminator) !== -1 || keys.indexOf(tiedValue) !== -1) { + cur.push(discriminators[discriminator]); + } + return cur; + }, []); + } + + // Now that we found the array, we need to check if there + // are remaining document paths to look up for casting. + // Also we need to handle array.$.path since schema.path + // doesn't work for that. + // If there is no foundschema.schema we are dealing with + // a path like array.$ + if (p !== parts.length && foundschema.schema) { + let ret; + if (parts[p] === '$') { + if (p + 1 === parts.length) { + // comments.$ + return foundschema; + } + // comments.$.comments.$.title + ret = search( + parts.slice(p + 1), + schema, + subdoc ? mpath.get(trypath, subdoc) : null, + nestedPath.concat(parts.slice(0, p)) + ); + if (ret) { + ret.$parentSchemaDocArray = ret.$parentSchemaDocArray || + (foundschema.schema.$isSingleNested ? null : foundschema); + } + return ret; + } + + if (schemas != null && schemas.length > 0) { + ret = []; + for (const schema of schemas) { + const _ret = search( + parts.slice(p), + schema, + subdoc ? mpath.get(trypath, subdoc) : null, + nestedPath.concat(parts.slice(0, p)) + ); + if (_ret != null) { + _ret.$parentSchemaDocArray = _ret.$parentSchemaDocArray || + (foundschema.schema.$isSingleNested ? null : foundschema); + if (_ret.$parentSchemaDocArray) { + ret.$parentSchemaDocArray = _ret.$parentSchemaDocArray; + } + ret.push(_ret); + } + } + return ret; + } else { + ret = search( + parts.slice(p), + foundschema.schema, + subdoc ? mpath.get(trypath, subdoc) : null, + nestedPath.concat(parts.slice(0, p)) + ); + + if (ret) { + ret.$parentSchemaDocArray = ret.$parentSchemaDocArray || + (foundschema.schema.$isSingleNested ? null : foundschema); + } + return ret; + } + } else if (p !== parts.length && + foundschema.$isMongooseArray && + foundschema.casterConstructor.$isMongooseArray) { + // Nested arrays. Drill down to the bottom of the nested array. + let type = foundschema; + while (type.$isMongooseArray && !type.$isMongooseDocumentArray) { + type = type.casterConstructor; + } + + const ret = search( + parts.slice(p), + type.schema, + null, + nestedPath.concat(parts.slice(0, p)) + ); + if (ret != null) { + return ret; + } + + if (type.schema.discriminators) { + const discriminatorPaths = []; + for (const discriminatorName of Object.keys(type.schema.discriminators)) { + const _schema = type.schema.discriminators[discriminatorName] || type.schema; + const ret = search(parts.slice(p), _schema, null, nestedPath.concat(parts.slice(0, p))); + if (ret != null) { + discriminatorPaths.push(ret); + } + } + if (discriminatorPaths.length > 0) { + return discriminatorPaths; + } + } + } + } else if (foundschema.$isSchemaMap && foundschema.$__schemaType instanceof Mixed) { + return foundschema.$__schemaType; + } + + const fullPath = nestedPath.concat([trypath]).join('.'); + if (topLevelDoc != null && topLevelDoc.$__ && topLevelDoc.$populated(fullPath) && p < parts.length) { + const model = doc.$__.populated[fullPath].options[populateModelSymbol]; + if (model != null) { + const ret = search( + parts.slice(p), + model.schema, + subdoc ? mpath.get(trypath, subdoc) : null, + nestedPath.concat(parts.slice(0, p)) + ); + + return ret; + } + } + + const _val = get(topLevelDoc, trypath); + if (_val != null) { + const model = Array.isArray(_val) && _val.length > 0 ? + leanPopulateMap.get(_val[0]) : + leanPopulateMap.get(_val); + // Populated using lean, `leanPopulateMap` value is the foreign model + const schema = model != null ? model.schema : null; + if (schema != null) { + const ret = search( + parts.slice(p), + schema, + subdoc ? mpath.get(trypath, subdoc) : null, + nestedPath.concat(parts.slice(0, p)) + ); + + if (ret != null) { + ret.$parentSchemaDocArray = ret.$parentSchemaDocArray || + (schema.$isSingleNested ? null : schema); + return ret; + } + } + } + return foundschema; + } + } + // look for arrays + const parts = path.split('.'); + for (let i = 0; i < parts.length; ++i) { + if (parts[i] === '$') { + // Re: gh-5628, because `schema.path()` doesn't take $ into account. + parts[i] = '0'; + } + } + return search(parts, schema, doc, []); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getVirtual.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getVirtual.js new file mode 100644 index 000000000..fc1641d40 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/getVirtual.js @@ -0,0 +1,72 @@ +'use strict'; + +module.exports = getVirtual; + +/*! + * ignore + */ + +function getVirtual(schema, name) { + if (schema.virtuals[name]) { + return { virtual: schema.virtuals[name], path: void 0 }; + } + + const parts = name.split('.'); + let cur = ''; + let nestedSchemaPath = ''; + for (let i = 0; i < parts.length; ++i) { + cur += (cur.length > 0 ? '.' : '') + parts[i]; + if (schema.virtuals[cur]) { + if (i === parts.length - 1) { + return { virtual: schema.virtuals[cur], path: nestedSchemaPath }; + } + continue; + } + + if (schema.nested[cur]) { + continue; + } + + if (schema.paths[cur] && schema.paths[cur].schema) { + schema = schema.paths[cur].schema; + const rest = parts.slice(i + 1).join('.'); + + if (schema.virtuals[rest]) { + if (i === parts.length - 2) { + return { + virtual: schema.virtuals[rest], + nestedSchemaPath: [nestedSchemaPath, cur].filter(v => !!v).join('.') + }; + } + continue; + } + + if (i + 1 < parts.length && schema.discriminators) { + for (const key of Object.keys(schema.discriminators)) { + const res = getVirtual(schema.discriminators[key], rest); + if (res != null) { + const _path = [nestedSchemaPath, cur, res.nestedSchemaPath]. + filter(v => !!v).join('.'); + return { + virtual: res.virtual, + nestedSchemaPath: _path + }; + } + } + } + + nestedSchemaPath += (nestedSchemaPath.length > 0 ? '.' : '') + cur; + cur = ''; + continue; + } + + if (schema.discriminators) { + for (const discriminatorKey of Object.keys(schema.discriminators)) { + const virtualFromDiscriminator = getVirtual(schema.discriminators[discriminatorKey], name); + if (virtualFromDiscriminator) return virtualFromDiscriminator; + } + } + + return null; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/leanPopulateMap.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/leanPopulateMap.js new file mode 100644 index 000000000..9ff9b1357 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/leanPopulateMap.js @@ -0,0 +1,7 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = new WeakMap(); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/lookupLocalFields.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/lookupLocalFields.js new file mode 100644 index 000000000..b85d8d757 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/lookupLocalFields.js @@ -0,0 +1,40 @@ +'use strict'; + +module.exports = function lookupLocalFields(cur, path, val) { + if (cur == null) { + return cur; + } + + if (cur._doc != null) { + cur = cur._doc; + } + + if (arguments.length >= 3) { + if (typeof cur !== 'object') { + return void 0; + } + if (val === void 0) { + return void 0; + } + if (cur instanceof Map) { + cur.set(path, val); + } else { + cur[path] = val; + } + return val; + } + + + // Support populating paths under maps using `map.$*.subpath` + if (path === '$*') { + return cur instanceof Map ? + Array.from(cur.values()) : + Object.keys(cur).map(key => cur[key]); + } + + if (cur instanceof Map) { + return cur.get(path); + } + + return cur[path]; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/markArraySubdocsPopulated.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/markArraySubdocsPopulated.js new file mode 100644 index 000000000..f9cc83cb6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/markArraySubdocsPopulated.js @@ -0,0 +1,49 @@ +'use strict'; + +const utils = require('../../utils'); + +/** + * If populating a path within a document array, make sure each + * subdoc within the array knows its subpaths are populated. + * + * #### Example: + * + * const doc = await Article.findOne().populate('comments.author'); + * doc.comments[0].populated('author'); // Should be set + * + * @param {Document} doc + * @param {Object} [populated] + * @api private + */ + +module.exports = function markArraySubdocsPopulated(doc, populated) { + if (doc._id == null || populated == null || populated.length === 0) { + return; + } + + const id = String(doc._id); + for (const item of populated) { + if (item.isVirtual) { + continue; + } + const path = item.path; + const pieces = path.split('.'); + for (let i = 0; i < pieces.length - 1; ++i) { + const subpath = pieces.slice(0, i + 1).join('.'); + const rest = pieces.slice(i + 1).join('.'); + const val = doc.get(subpath); + if (val == null) { + continue; + } + + if (utils.isMongooseDocumentArray(val)) { + for (let j = 0; j < val.length; ++j) { + if (val[j]) { + val[j].populated(rest, item._docs[id] == null ? void 0 : item._docs[id][j], item); + } + } + break; + } + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/modelNamesFromRefPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/modelNamesFromRefPath.js new file mode 100644 index 000000000..df643b234 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/modelNamesFromRefPath.js @@ -0,0 +1,68 @@ +'use strict'; + +const MongooseError = require('../../error/mongooseError'); +const isPathExcluded = require('../projection/isPathExcluded'); +const lookupLocalFields = require('./lookupLocalFields'); +const mpath = require('mpath'); +const util = require('util'); +const utils = require('../../utils'); + +const hasNumericPropRE = /(\.\d+$|\.\d+\.)/g; + +module.exports = function modelNamesFromRefPath(refPath, doc, populatedPath, modelSchema, queryProjection) { + if (refPath == null) { + return []; + } + + if (typeof refPath === 'string' && queryProjection != null && isPathExcluded(queryProjection, refPath)) { + throw new MongooseError('refPath `' + refPath + '` must not be excluded in projection, got ' + + util.inspect(queryProjection)); + } + + // If populated path has numerics, the end `refPath` should too. For example, + // if populating `a.0.b` instead of `a.b` and `b` has `refPath = a.c`, we + // should return `a.0.c` for the refPath. + + if (hasNumericPropRE.test(populatedPath)) { + const chunks = populatedPath.split(hasNumericPropRE); + + if (chunks[chunks.length - 1] === '') { + throw new Error('Can\'t populate individual element in an array'); + } + + let _refPath = ''; + let _remaining = refPath; + // 2nd, 4th, etc. will be numeric props. For example: `[ 'a', '.0.', 'b' ]` + for (let i = 0; i < chunks.length; i += 2) { + const chunk = chunks[i]; + if (_remaining.startsWith(chunk + '.')) { + _refPath += _remaining.substring(0, chunk.length) + chunks[i + 1]; + _remaining = _remaining.substring(chunk.length + 1); + } else if (i === chunks.length - 1) { + _refPath += _remaining; + _remaining = ''; + break; + } else { + throw new Error('Could not normalize ref path, chunk ' + chunk + ' not in populated path'); + } + } + + const refValue = mpath.get(_refPath, doc, lookupLocalFields); + let modelNames = Array.isArray(refValue) ? refValue : [refValue]; + modelNames = utils.array.flatten(modelNames); + return modelNames; + } + + const refValue = mpath.get(refPath, doc, lookupLocalFields); + + let modelNames; + if (modelSchema != null && modelSchema.virtuals.hasOwnProperty(refPath)) { + modelNames = [modelSchema.virtuals[refPath].applyGetters(void 0, doc)]; + } else { + modelNames = Array.isArray(refValue) ? refValue : [refValue]; + } + + modelNames = utils.array.flatten(modelNames); + + return modelNames; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/removeDeselectedForeignField.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/removeDeselectedForeignField.js new file mode 100644 index 000000000..a86e6e3e9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/removeDeselectedForeignField.js @@ -0,0 +1,31 @@ +'use strict'; + +const get = require('../get'); +const mpath = require('mpath'); +const parseProjection = require('../projection/parseProjection'); + +/*! + * ignore + */ + +module.exports = function removeDeselectedForeignField(foreignFields, options, docs) { + const projection = parseProjection(get(options, 'select', null), true) || + parseProjection(get(options, 'options.select', null), true); + + if (projection == null) { + return; + } + for (const foreignField of foreignFields) { + if (!projection.hasOwnProperty('-' + foreignField)) { + continue; + } + + for (const val of docs) { + if (val.$__ != null) { + mpath.unset(foreignField, val._doc); + } else { + mpath.unset(foreignField, val); + } + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/setPopulatedVirtualValue.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/setPopulatedVirtualValue.js new file mode 100644 index 000000000..786e54005 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/setPopulatedVirtualValue.js @@ -0,0 +1,33 @@ +'use strict'; + +/** + * Set a populated virtual value on a document's `$$populatedVirtuals` value + * + * @param {*} populatedVirtuals A document's `$$populatedVirtuals` + * @param {*} name The virtual name + * @param {*} v The result of the populate query + * @param {*} options The populate options. This function handles `justOne` and `count` options. + * @returns {Array|Document|Object|Array} the populated virtual value that was set + */ + +module.exports = function setPopulatedVirtualValue(populatedVirtuals, name, v, options) { + if (options.justOne || options.count) { + populatedVirtuals[name] = Array.isArray(v) ? + v[0] : + v; + + if (typeof populatedVirtuals[name] !== 'object') { + populatedVirtuals[name] = options.count ? v : null; + } + } else { + populatedVirtuals[name] = Array.isArray(v) ? + v : + v == null ? [] : [v]; + + populatedVirtuals[name] = populatedVirtuals[name].filter(function(doc) { + return doc && typeof doc === 'object'; + }); + } + + return populatedVirtuals[name]; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/skipPopulateValue.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/skipPopulateValue.js new file mode 100644 index 000000000..38f3f3906 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/skipPopulateValue.js @@ -0,0 +1,10 @@ +'use strict'; + +module.exports = function SkipPopulateValue(val) { + if (!(this instanceof SkipPopulateValue)) { + return new SkipPopulateValue(val); + } + + this.val = val; + return this; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/validateRef.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/validateRef.js new file mode 100644 index 000000000..2b58e166c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/populate/validateRef.js @@ -0,0 +1,19 @@ +'use strict'; + +const MongooseError = require('../../error/mongooseError'); +const util = require('util'); + +module.exports = validateRef; + +function validateRef(ref, path) { + if (typeof ref === 'string') { + return; + } + + if (typeof ref === 'function') { + return; + } + + throw new MongooseError('Invalid ref at path "' + path + '". Got ' + + util.inspect(ref, { depth: 0 })); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/printJestWarning.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/printJestWarning.js new file mode 100644 index 000000000..00ba2d50c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/printJestWarning.js @@ -0,0 +1,21 @@ +'use strict'; + +const utils = require('../utils'); + +if (typeof jest !== 'undefined' && !process.env.SUPPRESS_JEST_WARNINGS) { + if (typeof window !== 'undefined') { + utils.warn('Mongoose: looks like you\'re trying to test a Mongoose app ' + + 'with Jest\'s default jsdom test environment. Please make sure you read ' + + 'Mongoose\'s docs on configuring Jest to test Node.js apps: ' + + 'https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true ' + + 'to hide this warning.'); + } + + if (setTimeout.clock != null && typeof setTimeout.clock.Date === 'function') { + utils.warn('Mongoose: looks like you\'re trying to test a Mongoose app ' + + 'with Jest\'s mock timers enabled. Please make sure you read ' + + 'Mongoose\'s docs on configuring Jest to test Node.js apps: ' + + 'https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true ' + + 'to hide this warning.'); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/processConnectionOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/processConnectionOptions.js new file mode 100644 index 000000000..1dbb767eb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/processConnectionOptions.js @@ -0,0 +1,65 @@ +'use strict'; + +const clone = require('./clone'); +const MongooseError = require('../error/index'); + +function processConnectionOptions(uri, options) { + const opts = options ? options : {}; + const readPreference = opts.readPreference + ? opts.readPreference + : getUriReadPreference(uri); + + const clonedOpts = clone(opts); + const resolvedOpts = (readPreference && readPreference !== 'primary' && readPreference !== 'primaryPreferred') + ? resolveOptsConflicts(readPreference, clonedOpts) + : clonedOpts; + + return resolvedOpts; +} + +function resolveOptsConflicts(pref, opts) { + // don't silently override user-provided indexing options + if (setsIndexOptions(opts) && setsSecondaryRead(pref)) { + throwReadPreferenceError(); + } + + // if user has not explicitly set any auto-indexing options, + // we can silently default them all to false + else { + return defaultIndexOptsToFalse(opts); + } +} + +function setsIndexOptions(opts) { + const configIdx = opts.config && opts.config.autoIndex; + const { autoCreate, autoIndex } = opts; + return !!(configIdx || autoCreate || autoIndex); +} + +function setsSecondaryRead(prefString) { + return !!(prefString === 'secondary' || prefString === 'secondaryPreferred'); +} + +function getUriReadPreference(connectionString) { + const exp = /(?:&|\?)readPreference=(\w+)(?:&|$)/; + const match = exp.exec(connectionString); + return match ? match[1] : null; +} + +function defaultIndexOptsToFalse(opts) { + opts.config = { autoIndex: false }; + opts.autoCreate = false; + opts.autoIndex = false; + return opts; +} + +function throwReadPreferenceError() { + throw new MongooseError( + 'MongoDB prohibits index creation on connections that read from ' + + 'non-primary replicas. Connections that set "readPreference" to "secondary" or ' + + '"secondaryPreferred" may not opt-in to the following connection options: ' + + 'autoCreate, autoIndex' + ); +} + +module.exports = processConnectionOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/applyProjection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/applyProjection.js new file mode 100644 index 000000000..7a35b128b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/applyProjection.js @@ -0,0 +1,83 @@ +'use strict'; + +const hasIncludedChildren = require('./hasIncludedChildren'); +const isExclusive = require('./isExclusive'); +const isInclusive = require('./isInclusive'); +const isPOJO = require('../../utils').isPOJO; + +module.exports = function applyProjection(doc, projection, _hasIncludedChildren) { + if (projection == null) { + return doc; + } + if (doc == null) { + return doc; + } + + let exclude = null; + if (isInclusive(projection)) { + exclude = false; + } else if (isExclusive(projection)) { + exclude = true; + } + + if (exclude == null) { + return doc; + } else if (exclude) { + _hasIncludedChildren = _hasIncludedChildren || hasIncludedChildren(projection); + return applyExclusiveProjection(doc, projection, _hasIncludedChildren); + } else { + _hasIncludedChildren = _hasIncludedChildren || hasIncludedChildren(projection); + return applyInclusiveProjection(doc, projection, _hasIncludedChildren); + } +}; + +function applyExclusiveProjection(doc, projection, hasIncludedChildren, projectionLimb, prefix) { + if (doc == null || typeof doc !== 'object') { + return doc; + } + if (Array.isArray(doc)) { + return doc.map(el => applyExclusiveProjection(el, projection, hasIncludedChildren, projectionLimb, prefix)); + } + const ret = { ...doc }; + projectionLimb = prefix ? (projectionLimb || {}) : projection; + + for (const key of Object.keys(ret)) { + const fullPath = prefix ? prefix + '.' + key : key; + if (projection.hasOwnProperty(fullPath) || projectionLimb.hasOwnProperty(key)) { + if (isPOJO(projection[fullPath]) || isPOJO(projectionLimb[key])) { + ret[key] = applyExclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath); + } else { + delete ret[key]; + } + } else if (hasIncludedChildren[fullPath]) { + ret[key] = applyExclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath); + } + } + return ret; +} + +function applyInclusiveProjection(doc, projection, hasIncludedChildren, projectionLimb, prefix) { + if (doc == null || typeof doc !== 'object') { + return doc; + } + if (Array.isArray(doc)) { + return doc.map(el => applyInclusiveProjection(el, projection, hasIncludedChildren, projectionLimb, prefix)); + } + const ret = { ...doc }; + projectionLimb = prefix ? (projectionLimb || {}) : projection; + + for (const key of Object.keys(ret)) { + const fullPath = prefix ? prefix + '.' + key : key; + if (projection.hasOwnProperty(fullPath) || projectionLimb.hasOwnProperty(key)) { + if (isPOJO(projection[fullPath]) || isPOJO(projectionLimb[key])) { + ret[key] = applyInclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath); + } + continue; + } else if (hasIncludedChildren[fullPath]) { + ret[key] = applyInclusiveProjection(ret[key], projection, hasIncludedChildren, projectionLimb[key], fullPath); + } else { + delete ret[key]; + } + } + return ret; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/hasIncludedChildren.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/hasIncludedChildren.js new file mode 100644 index 000000000..50afc5adf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/hasIncludedChildren.js @@ -0,0 +1,41 @@ +'use strict'; + +/** + * Creates an object that precomputes whether a given path has child fields in + * the projection. + * + * #### Example: + * + * const res = hasIncludedChildren({ 'a.b.c': 0 }); + * res.a; // 1 + * res['a.b']; // 1 + * res['a.b.c']; // 1 + * res['a.c']; // undefined + * + * @param {Object} fields + * @api private + */ + +module.exports = function hasIncludedChildren(fields) { + const hasIncludedChildren = {}; + const keys = Object.keys(fields); + + for (const key of keys) { + + if (key.indexOf('.') === -1) { + hasIncludedChildren[key] = 1; + continue; + } + const parts = key.split('.'); + let c = parts[0]; + + for (let i = 0; i < parts.length; ++i) { + hasIncludedChildren[c] = 1; + if (i + 1 < parts.length) { + c = c + '.' + parts[i + 1]; + } + } + } + + return hasIncludedChildren; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isDefiningProjection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isDefiningProjection.js new file mode 100644 index 000000000..67dfb39fc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isDefiningProjection.js @@ -0,0 +1,18 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function isDefiningProjection(val) { + if (val == null) { + // `undefined` or `null` become exclusive projections + return true; + } + if (typeof val === 'object') { + // Only cases where a value does **not** define whether the whole projection + // is inclusive or exclusive are `$meta` and `$slice`. + return !('$meta' in val) && !('$slice' in val); + } + return true; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isExclusive.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isExclusive.js new file mode 100644 index 000000000..b55cf4684 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isExclusive.js @@ -0,0 +1,34 @@ +'use strict'; + +const isDefiningProjection = require('./isDefiningProjection'); + +/*! + * ignore + */ + +module.exports = function isExclusive(projection) { + if (projection == null) { + return null; + } + + const keys = Object.keys(projection); + let exclude = null; + + if (keys.length === 1 && keys[0] === '_id') { + exclude = !projection._id; + } else { + for (let ki = 0; ki < keys.length; ++ki) { + // Does this projection explicitly define inclusion/exclusion? + // Explicitly avoid `$meta` and `$slice` + const key = keys[ki]; + if (key !== '_id' && isDefiningProjection(projection[key])) { + exclude = (projection[key] != null && typeof projection[key] === 'object') ? + isExclusive(projection[key]) : + !projection[key]; + break; + } + } + } + + return exclude; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isInclusive.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isInclusive.js new file mode 100644 index 000000000..eebb412c4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isInclusive.js @@ -0,0 +1,38 @@ +'use strict'; + +const isDefiningProjection = require('./isDefiningProjection'); + +/*! + * ignore + */ + +module.exports = function isInclusive(projection) { + if (projection == null) { + return false; + } + + const props = Object.keys(projection); + const numProps = props.length; + if (numProps === 0) { + return false; + } + + for (let i = 0; i < numProps; ++i) { + const prop = props[i]; + // Plus paths can't define the projection (see gh-7050) + if (prop.startsWith('+')) { + continue; + } + // If field is truthy (1, true, etc.) and not an object, then this + // projection must be inclusive. If object, assume its $meta, $slice, etc. + if (isDefiningProjection(projection[prop]) && !!projection[prop]) { + if (projection[prop] != null && typeof projection[prop] === 'object') { + return isInclusive(projection[prop]); + } else { + return !!projection[prop]; + } + } + } + + return false; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isNestedProjection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isNestedProjection.js new file mode 100644 index 000000000..f53d9cddf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isNestedProjection.js @@ -0,0 +1,8 @@ +'use strict'; + +module.exports = function isNestedProjection(val) { + if (val == null || typeof val !== 'object') { + return false; + } + return val.$slice == null && val.$elemMatch == null && val.$meta == null && val.$ == null; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isPathExcluded.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isPathExcluded.js new file mode 100644 index 000000000..e8f126b22 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isPathExcluded.js @@ -0,0 +1,40 @@ +'use strict'; + +const isDefiningProjection = require('./isDefiningProjection'); + +/** + * Determines if `path` is excluded by `projection` + * + * @param {Object} projection + * @param {String} path + * @return {Boolean} + * @api private + */ + +module.exports = function isPathExcluded(projection, path) { + if (projection == null) { + return false; + } + + if (path === '_id') { + return projection._id === 0; + } + + const paths = Object.keys(projection); + let type = null; + + for (const _path of paths) { + if (isDefiningProjection(projection[_path])) { + type = projection[path] === 1 ? 'inclusive' : 'exclusive'; + break; + } + } + + if (type === 'inclusive') { + return projection[path] !== 1; + } + if (type === 'exclusive') { + return projection[path] === 0; + } + return false; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isPathSelectedInclusive.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isPathSelectedInclusive.js new file mode 100644 index 000000000..8a05fc948 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isPathSelectedInclusive.js @@ -0,0 +1,28 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function isPathSelectedInclusive(fields, path) { + const chunks = path.split('.'); + let cur = ''; + let j; + let keys; + let numKeys; + for (let i = 0; i < chunks.length; ++i) { + cur += cur.length ? '.' : '' + chunks[i]; + if (fields[cur]) { + keys = Object.keys(fields); + numKeys = keys.length; + for (j = 0; j < numKeys; ++j) { + if (keys[i].indexOf(cur + '.') === 0 && keys[i].indexOf(path) !== 0) { + continue; + } + } + return true; + } + } + + return false; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isSubpath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isSubpath.js new file mode 100644 index 000000000..bec82f83d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/isSubpath.js @@ -0,0 +1,14 @@ +'use strict'; + +/** + * Determines if `path2` is a subpath of or equal to `path1` + * + * @param {string} path1 + * @param {string} path2 + * @return {Boolean} + * @api private + */ + +module.exports = function isSubpath(path1, path2) { + return path1 === path2 || path2.startsWith(path1 + '.'); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/parseProjection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/parseProjection.js new file mode 100644 index 000000000..479b52353 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/projection/parseProjection.js @@ -0,0 +1,33 @@ +'use strict'; + +/** + * Convert a string or array into a projection object, retaining all + * `-` and `+` paths. + */ + +module.exports = function parseProjection(v, retainMinusPaths) { + const type = typeof v; + + if (type === 'string') { + v = v.split(/\s+/); + } + if (!Array.isArray(v) && Object.prototype.toString.call(v) !== '[object Arguments]') { + return v; + } + + const len = v.length; + const ret = {}; + for (let i = 0; i < len; ++i) { + let field = v[i]; + if (!field) { + continue; + } + const include = '-' == field[0] ? 0 : 1; + if (!retainMinusPaths && include === 0) { + field = field.substring(1); + } + ret[field] = include; + } + + return ret; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/promiseOrCallback.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/promiseOrCallback.js new file mode 100644 index 000000000..952eecf4b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/promiseOrCallback.js @@ -0,0 +1,54 @@ +'use strict'; + +const immediate = require('./immediate'); + +const emittedSymbol = Symbol('mongoose#emitted'); + +module.exports = function promiseOrCallback(callback, fn, ee, Promise) { + if (typeof callback === 'function') { + try { + return fn(function(error) { + if (error != null) { + if (ee != null && ee.listeners != null && ee.listeners('error').length > 0 && !error[emittedSymbol]) { + error[emittedSymbol] = true; + ee.emit('error', error); + } + try { + callback(error); + } catch (error) { + return immediate(() => { + throw error; + }); + } + return; + } + callback.apply(this, arguments); + }); + } catch (error) { + if (ee != null && ee.listeners != null && ee.listeners('error').length > 0 && !error[emittedSymbol]) { + error[emittedSymbol] = true; + ee.emit('error', error); + } + + return callback(error); + } + } + + Promise = Promise || global.Promise; + + return new Promise((resolve, reject) => { + fn(function(error, res) { + if (error != null) { + if (ee != null && ee.listeners != null && ee.listeners('error').length > 0 && !error[emittedSymbol]) { + error[emittedSymbol] = true; + ee.emit('error', error); + } + return reject(error); + } + if (arguments.length > 2) { + return resolve(Array.prototype.slice.call(arguments, 1)); + } + resolve(res); + }); + }); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/applyGlobalOption.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/applyGlobalOption.js new file mode 100644 index 000000000..e93fa73d4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/applyGlobalOption.js @@ -0,0 +1,29 @@ +'use strict'; + +const utils = require('../../utils'); + +function applyGlobalMaxTimeMS(options, connectionOptions, baseOptions) { + applyGlobalOption(options, connectionOptions, baseOptions, 'maxTimeMS'); +} + +function applyGlobalDiskUse(options, connectionOptions, baseOptions) { + applyGlobalOption(options, connectionOptions, baseOptions, 'allowDiskUse'); +} + +module.exports = { + applyGlobalMaxTimeMS, + applyGlobalDiskUse +}; + + +function applyGlobalOption(options, connectionOptions, baseOptions, optionName) { + if (utils.hasUserDefinedProperty(options, optionName)) { + return; + } + + if (utils.hasUserDefinedProperty(connectionOptions, optionName)) { + options[optionName] = connectionOptions[optionName]; + } else if (utils.hasUserDefinedProperty(baseOptions, optionName)) { + options[optionName] = baseOptions[optionName]; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/cast$expr.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/cast$expr.js new file mode 100644 index 000000000..9889d47ad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/cast$expr.js @@ -0,0 +1,282 @@ +'use strict'; + +const CastError = require('../../error/cast'); +const StrictModeError = require('../../error/strict'); +const castNumber = require('../../cast/number'); +const omitUndefined = require('../omitUndefined'); + +const booleanComparison = new Set(['$and', '$or']); +const comparisonOperator = new Set(['$cmp', '$eq', '$lt', '$lte', '$gt', '$gte']); +const arithmeticOperatorArray = new Set([ + // avoid casting '$add' or '$subtract', because expressions can be either number or date, + // and we don't have a good way of inferring which arguments should be numbers and which should + // be dates. + '$multiply', + '$divide', + '$log', + '$mod', + '$trunc', + '$avg', + '$max', + '$min', + '$stdDevPop', + '$stdDevSamp', + '$sum' +]); +const arithmeticOperatorNumber = new Set([ + '$abs', + '$exp', + '$ceil', + '$floor', + '$ln', + '$log10', + '$sqrt', + '$sin', + '$cos', + '$tan', + '$asin', + '$acos', + '$atan', + '$atan2', + '$asinh', + '$acosh', + '$atanh', + '$sinh', + '$cosh', + '$tanh', + '$degreesToRadians', + '$radiansToDegrees' +]); +const arrayElementOperators = new Set([ + '$arrayElemAt', + '$first', + '$last' +]); +const dateOperators = new Set([ + '$year', + '$month', + '$week', + '$dayOfMonth', + '$dayOfYear', + '$hour', + '$minute', + '$second', + '$isoDayOfWeek', + '$isoWeekYear', + '$isoWeek', + '$millisecond' +]); +const expressionOperator = new Set(['$not']); + +module.exports = function cast$expr(val, schema, strictQuery) { + if (typeof val !== 'object' || val === null) { + throw new Error('`$expr` must be an object'); + } + + return _castExpression(val, schema, strictQuery); +}; + +function _castExpression(val, schema, strictQuery) { + // Preserve the value if it represents a path or if it's null + if (isPath(val) || val === null) { + return val; + } + + if (val.$cond != null) { + if (Array.isArray(val.$cond)) { + val.$cond = val.$cond.map(expr => _castExpression(expr, schema, strictQuery)); + } else { + val.$cond.if = _castExpression(val.$cond.if, schema, strictQuery); + val.$cond.then = _castExpression(val.$cond.then, schema, strictQuery); + val.$cond.else = _castExpression(val.$cond.else, schema, strictQuery); + } + } else if (val.$ifNull != null) { + val.$ifNull.map(v => _castExpression(v, schema, strictQuery)); + } else if (val.$switch != null) { + val.branches.map(v => _castExpression(v, schema, strictQuery)); + val.default = _castExpression(val.default, schema, strictQuery); + } + + const keys = Object.keys(val); + for (const key of keys) { + if (booleanComparison.has(key)) { + val[key] = val[key].map(v => _castExpression(v, schema, strictQuery)); + } else if (comparisonOperator.has(key)) { + val[key] = castComparison(val[key], schema, strictQuery); + } else if (arithmeticOperatorArray.has(key)) { + val[key] = castArithmetic(val[key], schema, strictQuery); + } else if (arithmeticOperatorNumber.has(key)) { + val[key] = castNumberOperator(val[key], schema, strictQuery); + } else if (expressionOperator.has(key)) { + val[key] = _castExpression(val[key], schema, strictQuery); + } + } + + if (val.$in) { + val.$in = castIn(val.$in, schema, strictQuery); + } + if (val.$size) { + val.$size = castNumberOperator(val.$size, schema, strictQuery); + } + if (val.$round) { + const $round = val.$round; + if (!Array.isArray($round) || $round.length < 1 || $round.length > 2) { + throw new CastError('Array', $round, '$round'); + } + val.$round = $round.map(v => castNumberOperator(v, schema, strictQuery)); + } + + omitUndefined(val); + + return val; +} + +// { $op: } +function castNumberOperator(val) { + if (!isLiteral(val)) { + return val; + } + + try { + return castNumber(val); + } catch (err) { + throw new CastError('Number', val); + } +} + +function castIn(val, schema, strictQuery) { + const path = val[1]; + if (!isPath(path)) { + return val; + } + const search = val[0]; + + const schematype = schema.path(path.slice(1)); + if (schematype === null) { + if (strictQuery === false) { + return val; + } else if (strictQuery === 'throw') { + throw new StrictModeError('$in'); + } + + return void 0; + } + + if (!schematype.$isMongooseArray) { + throw new Error('Path must be an array for $in'); + } + + return [ + schematype.$isMongooseDocumentArray ? schematype.$embeddedSchemaType.cast(search) : schematype.caster.cast(search), + path + ]; +} + +// { $op: [, ] } +function castArithmetic(val) { + if (!Array.isArray(val)) { + if (!isLiteral(val)) { + return val; + } + try { + return castNumber(val); + } catch (err) { + throw new CastError('Number', val); + } + } + + return val.map(v => { + if (!isLiteral(v)) { + return v; + } + try { + return castNumber(v); + } catch (err) { + throw new CastError('Number', v); + } + }); +} + +// { $op: [expression, expression] } +function castComparison(val, schema, strictQuery) { + if (!Array.isArray(val) || val.length !== 2) { + throw new Error('Comparison operator must be an array of length 2'); + } + + val[0] = _castExpression(val[0], schema, strictQuery); + const lhs = val[0]; + + if (isLiteral(val[1])) { + let path = null; + let schematype = null; + let caster = null; + if (isPath(lhs)) { + path = lhs.slice(1); + schematype = schema.path(path); + } else if (typeof lhs === 'object' && lhs != null) { + for (const key of Object.keys(lhs)) { + if (dateOperators.has(key) && isPath(lhs[key])) { + path = lhs[key].slice(1) + '.' + key; + caster = castNumber; + } else if (arrayElementOperators.has(key) && isPath(lhs[key])) { + path = lhs[key].slice(1) + '.' + key; + schematype = schema.path(lhs[key].slice(1)); + if (schematype != null) { + if (schematype.$isMongooseDocumentArray) { + schematype = schematype.$embeddedSchemaType; + } else if (schematype.$isMongooseArray) { + schematype = schematype.caster; + } + } + } + } + } + + const is$literal = typeof val[1] === 'object' && val[1] != null && val[1].$literal != null; + if (schematype != null) { + if (is$literal) { + val[1] = { $literal: schematype.cast(val[1].$literal) }; + } else { + val[1] = schematype.cast(val[1]); + } + } else if (caster != null) { + if (is$literal) { + try { + val[1] = { $literal: caster(val[1].$literal) }; + } catch (err) { + throw new CastError(caster.name.replace(/^cast/, ''), val[1], path + '.$literal'); + } + } else { + try { + val[1] = caster(val[1]); + } catch (err) { + throw new CastError(caster.name.replace(/^cast/, ''), val[1], path); + } + } + } else if (path != null && strictQuery === true) { + return void 0; + } else if (path != null && strictQuery === 'throw') { + throw new StrictModeError(path); + } + } else { + val[1] = _castExpression(val[1]); + } + + return val; +} + +function isPath(val) { + return typeof val === 'string' && val[0] === '$'; +} + +function isLiteral(val) { + if (typeof val === 'string' && val[0] === '$') { + return false; + } + if (typeof val === 'object' && val !== null && Object.keys(val).find(key => key[0] === '$')) { + // The `$literal` expression can make an object a literal + // https://www.mongodb.com/docs/manual/reference/operator/aggregation/literal/#mongodb-expression-exp.-literal + return val.$literal != null; + } + return true; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/castFilterPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/castFilterPath.js new file mode 100644 index 000000000..c5c8d0fad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/castFilterPath.js @@ -0,0 +1,54 @@ +'use strict'; + +const isOperator = require('./isOperator'); + +module.exports = function castFilterPath(ctx, schematype, val) { + const any$conditionals = Object.keys(val).some(isOperator); + + if (!any$conditionals) { + return schematype.castForQuery( + null, + val, + ctx + ); + } + + const ks = Object.keys(val); + + let k = ks.length; + + while (k--) { + const $cond = ks[k]; + const nested = val[$cond]; + + if ($cond === '$not') { + if (nested && schematype && !schematype.caster) { + const _keys = Object.keys(nested); + if (_keys.length && isOperator(_keys[0])) { + for (const key of Object.keys(nested)) { + nested[key] = schematype.castForQuery( + key, + nested[key], + ctx + ); + } + } else { + val[$cond] = schematype.castForQuery( + $cond, + nested, + ctx + ); + } + continue; + } + } else { + val[$cond] = schematype.castForQuery( + $cond, + nested, + ctx + ); + } + } + + return val; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/castUpdate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/castUpdate.js new file mode 100644 index 000000000..eb69bc89a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/castUpdate.js @@ -0,0 +1,587 @@ +'use strict'; + +const CastError = require('../../error/cast'); +const MongooseError = require('../../error/mongooseError'); +const StrictModeError = require('../../error/strict'); +const ValidationError = require('../../error/validation'); +const castNumber = require('../../cast/number'); +const cast = require('../../cast'); +const getConstructorName = require('../getConstructorName'); +const getEmbeddedDiscriminatorPath = require('./getEmbeddedDiscriminatorPath'); +const handleImmutable = require('./handleImmutable'); +const moveImmutableProperties = require('../update/moveImmutableProperties'); +const schemaMixedSymbol = require('../../schema/symbols').schemaMixedSymbol; +const setDottedPath = require('../path/setDottedPath'); +const utils = require('../../utils'); +const { internalToObjectOptions } = require('../../options'); + +const mongodbUpdateOperators = new Set([ + '$currentDate', + '$inc', + '$min', + '$max', + '$mul', + '$rename', + '$set', + '$setOnInsert', + '$unset', + '$addToSet', + '$pop', + '$pull', + '$push', + '$pullAll', + '$bit' +]); + +/** + * Casts an update op based on the given schema + * + * @param {Schema} schema + * @param {Object} obj + * @param {Object} [options] + * @param {Boolean|String} [options.strict] defaults to true + * @param {Query} context passed to setters + * @return {Boolean} true iff the update is non-empty + * @api private + */ +module.exports = function castUpdate(schema, obj, options, context, filter) { + if (obj == null) { + return undefined; + } + options = options || {}; + // Update pipeline + if (Array.isArray(obj)) { + const len = obj.length; + for (let i = 0; i < len; ++i) { + const ops = Object.keys(obj[i]); + for (const op of ops) { + obj[i][op] = castPipelineOperator(op, obj[i][op]); + } + } + return obj; + } + + if (options.upsert) { + moveImmutableProperties(schema, obj, context); + } + + const ops = Object.keys(obj); + let i = ops.length; + const ret = {}; + let val; + let hasDollarKey = false; + + filter = filter || {}; + while (i--) { + const op = ops[i]; + if (!mongodbUpdateOperators.has(op)) { + // fix up $set sugar + if (!ret.$set) { + if (obj.$set) { + ret.$set = obj.$set; + } else { + ret.$set = {}; + } + } + ret.$set[op] = obj[op]; + ops.splice(i, 1); + if (!~ops.indexOf('$set')) ops.push('$set'); + } else if (op === '$set') { + if (!ret.$set) { + ret[op] = obj[op]; + } + } else { + ret[op] = obj[op]; + } + } + // cast each value + i = ops.length; + while (i--) { + const op = ops[i]; + val = ret[op]; + hasDollarKey = hasDollarKey || op.startsWith('$'); + if (val != null && val.$__) { + val = val.toObject(internalToObjectOptions); + ret[op] = val; + } + if (val && + typeof val === 'object' && + !Buffer.isBuffer(val) && + mongodbUpdateOperators.has(op)) { + walkUpdatePath(schema, val, op, options, context, filter); + } else { + const msg = 'Invalid atomic update value for ' + op + '. ' + + 'Expected an object, received ' + typeof val; + throw new Error(msg); + } + + if (op.startsWith('$') && utils.isEmptyObject(val)) { + delete ret[op]; + } + } + + if (Object.keys(ret).length === 0 && + options.upsert && + Object.keys(filter).length > 0) { + // Trick the driver into allowing empty upserts to work around + // https://github.com/mongodb/node-mongodb-native/pull/2490 + // Shallow clone to avoid passing defaults in re: gh-13962 + return { $setOnInsert: { ...filter } }; + } + return ret; +}; + +/*! + * ignore + */ + +function castPipelineOperator(op, val) { + if (op === '$unset') { + if (typeof val !== 'string' && (!Array.isArray(val) || val.find(v => typeof v !== 'string'))) { + throw new MongooseError('Invalid $unset in pipeline, must be ' + + ' a string or an array of strings'); + } + return val; + } + if (op === '$project') { + if (val == null || typeof val !== 'object') { + throw new MongooseError('Invalid $project in pipeline, must be an object'); + } + return val; + } + if (op === '$addFields' || op === '$set') { + if (val == null || typeof val !== 'object') { + throw new MongooseError('Invalid ' + op + ' in pipeline, must be an object'); + } + return val; + } else if (op === '$replaceRoot' || op === '$replaceWith') { + if (val == null || typeof val !== 'object') { + throw new MongooseError('Invalid ' + op + ' in pipeline, must be an object'); + } + return val; + } + + throw new MongooseError('Invalid update pipeline operator: "' + op + '"'); +} + +/** + * Walk each path of obj and cast its values + * according to its schema. + * + * @param {Schema} schema + * @param {Object} obj part of a query + * @param {String} op the atomic operator ($pull, $set, etc) + * @param {Object} [options] + * @param {Boolean|String} [options.strict] + * @param {Query} context + * @param {Object} filter + * @param {String} pref path prefix (internal only) + * @return {Bool} true if this path has keys to update + * @api private + */ + +function walkUpdatePath(schema, obj, op, options, context, filter, pref) { + const strict = options.strict; + const prefix = pref ? pref + '.' : ''; + const keys = Object.keys(obj); + let i = keys.length; + let hasKeys = false; + let schematype; + let key; + let val; + + let aggregatedError = null; + + const strictMode = strict != null ? strict : schema.options.strict; + + while (i--) { + key = keys[i]; + val = obj[key]; + + // `$pull` is special because we need to cast the RHS as a query, not as + // an update. + if (op === '$pull') { + schematype = schema._getSchema(prefix + key); + if (schematype == null) { + const _res = getEmbeddedDiscriminatorPath(schema, obj, filter, prefix + key, options); + if (_res.schematype != null) { + schematype = _res.schematype; + } + } + if (schematype != null && schematype.schema != null) { + obj[key] = cast(schematype.schema, obj[key], options, context); + hasKeys = true; + continue; + } + } + + const discriminatorKey = (prefix ? prefix + key : key); + if ( + schema.discriminatorMapping != null && + discriminatorKey === schema.options.discriminatorKey && + schema.discriminatorMapping.value !== obj[key] && + !options.overwriteDiscriminatorKey + ) { + if (strictMode === 'throw') { + const err = new Error('Can\'t modify discriminator key "' + discriminatorKey + '" on discriminator model'); + aggregatedError = _appendError(err, context, discriminatorKey, aggregatedError); + continue; + } else if (strictMode) { + delete obj[key]; + continue; + } + } + + if (getConstructorName(val) === 'Object') { + // watch for embedded doc schemas + schematype = schema._getSchema(prefix + key); + + if (schematype == null) { + const _res = getEmbeddedDiscriminatorPath(schema, obj, filter, prefix + key, options); + if (_res.schematype != null) { + schematype = _res.schematype; + } + } + + if (op !== '$setOnInsert' && + handleImmutable(schematype, strict, obj, key, prefix + key, context)) { + continue; + } + + if (schematype && schematype.caster && op in castOps) { + // embedded doc schema + if ('$each' in val) { + hasKeys = true; + try { + obj[key] = { + $each: castUpdateVal(schematype, val.$each, op, key, context, prefix + key) + }; + } catch (error) { + aggregatedError = _appendError(error, context, key, aggregatedError); + } + + if (val.$slice != null) { + obj[key].$slice = val.$slice | 0; + } + + if (val.$sort) { + obj[key].$sort = val.$sort; + } + + if (val.$position != null) { + obj[key].$position = castNumber(val.$position); + } + } else { + if (schematype != null && schematype.$isSingleNested) { + const _strict = strict == null ? schematype.schema.options.strict : strict; + try { + obj[key] = schematype.castForQuery(null, val, context, { strict: _strict }); + } catch (error) { + aggregatedError = _appendError(error, context, key, aggregatedError); + } + } else { + try { + obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key); + } catch (error) { + aggregatedError = _appendError(error, context, key, aggregatedError); + } + } + + if (obj[key] === void 0) { + delete obj[key]; + continue; + } + + hasKeys = true; + } + } else if ((op === '$currentDate') || (op in castOps && schematype)) { + // $currentDate can take an object + try { + obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key); + } catch (error) { + aggregatedError = _appendError(error, context, key, aggregatedError); + } + + if (obj[key] === void 0) { + delete obj[key]; + continue; + } + + hasKeys = true; + } else { + const pathToCheck = (prefix + key); + const v = schema._getPathType(pathToCheck); + let _strict = strict; + if (v && v.schema && _strict == null) { + _strict = v.schema.options.strict; + } + + if (v.pathType === 'undefined') { + if (_strict === 'throw') { + throw new StrictModeError(pathToCheck); + } else if (_strict) { + delete obj[key]; + continue; + } + } + + // gh-2314 + // we should be able to set a schema-less field + // to an empty object literal + hasKeys |= walkUpdatePath(schema, val, op, options, context, filter, prefix + key) || + (utils.isObject(val) && Object.keys(val).length === 0); + } + } else { + const checkPath = (key === '$each' || key === '$or' || key === '$and' || key === '$in') ? + pref : prefix + key; + schematype = schema._getSchema(checkPath); + + // You can use `$setOnInsert` with immutable keys + if (op !== '$setOnInsert' && + handleImmutable(schematype, strict, obj, key, prefix + key, context)) { + continue; + } + + let pathDetails = schema._getPathType(checkPath); + + // If no schema type, check for embedded discriminators because the + // filter or update may imply an embedded discriminator type. See #8378 + if (schematype == null) { + const _res = getEmbeddedDiscriminatorPath(schema, obj, filter, checkPath, options); + if (_res.schematype != null) { + schematype = _res.schematype; + pathDetails = _res.type; + } + } + + let isStrict = strict; + if (pathDetails && pathDetails.schema && strict == null) { + isStrict = pathDetails.schema.options.strict; + } + + const skip = isStrict && + !schematype && + !/real|nested/.test(pathDetails.pathType); + + if (skip) { + // Even if strict is `throw`, avoid throwing an error because of + // virtuals because of #6731 + if (isStrict === 'throw' && schema.virtuals[checkPath] == null) { + throw new StrictModeError(prefix + key); + } else { + delete obj[key]; + } + } else { + // gh-1845 temporary fix: ignore $rename. See gh-3027 for tracking + // improving this. + if (op === '$rename') { + hasKeys = true; + continue; + } + + try { + if (prefix.length === 0 || key.indexOf('.') === -1) { + obj[key] = castUpdateVal(schematype, val, op, key, context, prefix + key); + } else if (isStrict !== false || schematype != null) { + // Setting a nested dotted path that's in the schema. We don't allow paths with '.' in + // a schema, so replace the dotted path with a nested object to avoid ending up with + // dotted properties in the updated object. See (gh-10200) + setDottedPath(obj, key, castUpdateVal(schematype, val, op, key, context, prefix + key)); + delete obj[key]; + } + } catch (error) { + aggregatedError = _appendError(error, context, key, aggregatedError); + } + + if (Array.isArray(obj[key]) && (op === '$addToSet' || op === '$push') && key !== '$each') { + if (schematype && + schematype.caster && + !schematype.caster.$isMongooseArray && + !schematype.caster[schemaMixedSymbol]) { + obj[key] = { $each: obj[key] }; + } + } + + if (obj[key] === void 0) { + delete obj[key]; + continue; + } + + hasKeys = true; + } + } + } + + if (aggregatedError != null) { + throw aggregatedError; + } + + return hasKeys; +} + +/*! + * ignore + */ + +function _appendError(error, query, key, aggregatedError) { + if (typeof query !== 'object' || !query.options.multipleCastError) { + throw error; + } + aggregatedError = aggregatedError || new ValidationError(); + aggregatedError.addError(key, error); + return aggregatedError; +} + +/** + * These operators should be cast to numbers instead + * of their path schema type. + * @api private + */ + +const numberOps = { + $pop: 1, + $inc: 1 +}; + +/** + * These ops require no casting because the RHS doesn't do anything. + * @api private + */ + +const noCastOps = { + $unset: 1 +}; + +/** + * These operators require casting docs + * to real Documents for Update operations. + * @api private + */ + +const castOps = { + $push: 1, + $addToSet: 1, + $set: 1, + $setOnInsert: 1 +}; + +/*! + * ignore + */ + +const overwriteOps = { + $set: 1, + $setOnInsert: 1 +}; + +/** + * Casts `val` according to `schema` and atomic `op`. + * + * @param {SchemaType} schema + * @param {Object} val + * @param {String} op the atomic operator ($pull, $set, etc) + * @param {String} $conditional + * @param {Query} context + * @param {String} path + * @api private + */ + +function castUpdateVal(schema, val, op, $conditional, context, path) { + if (!schema) { + // non-existing schema path + if (op in numberOps) { + try { + return castNumber(val); + } catch (err) { + throw new CastError('number', val, path); + } + } + return val; + } + + // console.log('CastUpdateVal', path, op, val, schema); + + const cond = schema.caster && op in castOps && + (utils.isObject(val) || Array.isArray(val)); + if (cond && !overwriteOps[op]) { + // Cast values for ops that add data to MongoDB. + // Ensures embedded documents get ObjectIds etc. + let schemaArrayDepth = 0; + let cur = schema; + while (cur.$isMongooseArray) { + ++schemaArrayDepth; + cur = cur.caster; + } + let arrayDepth = 0; + let _val = val; + while (Array.isArray(_val)) { + ++arrayDepth; + _val = _val[0]; + } + + const additionalNesting = schemaArrayDepth - arrayDepth; + while (arrayDepth < schemaArrayDepth) { + val = [val]; + ++arrayDepth; + } + + let tmp = schema.applySetters(Array.isArray(val) ? val : [val], context); + + for (let i = 0; i < additionalNesting; ++i) { + tmp = tmp[0]; + } + return tmp; + } + + if (op in noCastOps) { + return val; + } + if (op in numberOps) { + // Null and undefined not allowed for $pop, $inc + if (val == null) { + throw new CastError('number', val, schema.path); + } + if (op === '$inc') { + // Support `$inc` with long, int32, etc. (gh-4283) + return schema.castForQuery( + null, + val, + context + ); + } + try { + return castNumber(val); + } catch (error) { + throw new CastError('number', val, schema.path); + } + } + if (op === '$currentDate') { + if (typeof val === 'object') { + return { $type: val.$type }; + } + return Boolean(val); + } + + if (mongodbUpdateOperators.has($conditional)) { + return schema.castForQuery( + $conditional, + val, + context + ); + } + + if (overwriteOps[op]) { + const skipQueryCastForUpdate = val != null && schema.$isMongooseArray && schema.$fullPath != null && !schema.$fullPath.match(/\d+$/); + const applySetters = schema[schemaMixedSymbol] != null; + if (skipQueryCastForUpdate || applySetters) { + return schema.applySetters(val, context); + } + return schema.castForQuery( + null, + val, + context + ); + } + + return schema.castForQuery(null, val, context); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/getEmbeddedDiscriminatorPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/getEmbeddedDiscriminatorPath.js new file mode 100644 index 000000000..21bc8a1a8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/getEmbeddedDiscriminatorPath.js @@ -0,0 +1,94 @@ +'use strict'; + +const cleanPositionalOperators = require('../schema/cleanPositionalOperators'); +const get = require('../get'); +const getDiscriminatorByValue = require('../discriminator/getDiscriminatorByValue'); +const updatedPathsByArrayFilter = require('../update/updatedPathsByArrayFilter'); + +/** + * Like `schema.path()`, except with a document, because impossible to + * determine path type without knowing the embedded discriminator key. + * @param {Schema} schema + * @param {Object} [update] + * @param {Object} [filter] + * @param {String} path + * @param {Object} [options] + * @api private + */ + +module.exports = function getEmbeddedDiscriminatorPath(schema, update, filter, path, options) { + const parts = path.split('.'); + let schematype = null; + let type = 'adhocOrUndefined'; + + filter = filter || {}; + update = update || {}; + const arrayFilters = options != null && Array.isArray(options.arrayFilters) ? + options.arrayFilters : []; + const updatedPathsByFilter = updatedPathsByArrayFilter(update); + + for (let i = 0; i < parts.length; ++i) { + const subpath = cleanPositionalOperators(parts.slice(0, i + 1).join('.')); + schematype = schema.path(subpath); + if (schematype == null) { + continue; + } + + type = schema.pathType(subpath); + if ((schematype.$isSingleNested || schematype.$isMongooseDocumentArrayElement) && + schematype.schema.discriminators != null) { + const key = get(schematype, 'schema.options.discriminatorKey'); + const discriminatorValuePath = subpath + '.' + key; + const discriminatorFilterPath = + discriminatorValuePath.replace(/\.\d+\./, '.'); + let discriminatorKey = null; + + if (discriminatorValuePath in filter) { + discriminatorKey = filter[discriminatorValuePath]; + } + if (discriminatorFilterPath in filter) { + discriminatorKey = filter[discriminatorFilterPath]; + } + + const wrapperPath = subpath.replace(/\.\d+$/, ''); + if (schematype.$isMongooseDocumentArrayElement && + get(filter[wrapperPath], '$elemMatch.' + key) != null) { + discriminatorKey = filter[wrapperPath].$elemMatch[key]; + } + + if (discriminatorValuePath in update) { + discriminatorKey = update[discriminatorValuePath]; + } + + for (const filterKey of Object.keys(updatedPathsByFilter)) { + const schemaKey = updatedPathsByFilter[filterKey] + '.' + key; + const arrayFilterKey = filterKey + '.' + key; + if (schemaKey === discriminatorFilterPath) { + const filter = arrayFilters.find(filter => filter.hasOwnProperty(arrayFilterKey)); + if (filter != null) { + discriminatorKey = filter[arrayFilterKey]; + } + } + } + + if (discriminatorKey == null) { + continue; + } + + const discriminator = getDiscriminatorByValue(schematype.caster.discriminators, discriminatorKey); + const discriminatorSchema = discriminator && discriminator.schema; + if (discriminatorSchema == null) { + continue; + } + + const rest = parts.slice(i + 1).join('.'); + schematype = discriminatorSchema.path(rest); + if (schematype != null) { + type = discriminatorSchema._getPathType(rest); + break; + } + } + } + + return { type: type, schematype: schematype }; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/handleImmutable.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/handleImmutable.js new file mode 100644 index 000000000..22adb3c50 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/handleImmutable.js @@ -0,0 +1,28 @@ +'use strict'; + +const StrictModeError = require('../../error/strict'); + +module.exports = function handleImmutable(schematype, strict, obj, key, fullPath, ctx) { + if (schematype == null || !schematype.options || !schematype.options.immutable) { + return false; + } + let immutable = schematype.options.immutable; + + if (typeof immutable === 'function') { + immutable = immutable.call(ctx, ctx); + } + if (!immutable) { + return false; + } + + if (strict === false) { + return false; + } + if (strict === 'throw') { + throw new StrictModeError(null, + `Field ${fullPath} is immutable and strict = 'throw'`); + } + + delete obj[key]; + return true; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/handleReadPreferenceAliases.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/handleReadPreferenceAliases.js new file mode 100644 index 000000000..c3af278b0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/handleReadPreferenceAliases.js @@ -0,0 +1,23 @@ +'use strict'; + +module.exports = function handleReadPreferenceAliases(pref) { + switch (pref) { + case 'p': + pref = 'primary'; + break; + case 'pp': + pref = 'primaryPreferred'; + break; + case 's': + pref = 'secondary'; + break; + case 'sp': + pref = 'secondaryPreferred'; + break; + case 'n': + pref = 'nearest'; + break; + } + + return pref; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/hasDollarKeys.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/hasDollarKeys.js new file mode 100644 index 000000000..3e3b188c1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/hasDollarKeys.js @@ -0,0 +1,23 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function hasDollarKeys(obj) { + + if (typeof obj !== 'object' || obj === null) { + return false; + } + + const keys = Object.keys(obj); + const len = keys.length; + + for (let i = 0; i < len; ++i) { + if (keys[i][0] === '$') { + return true; + } + } + + return false; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/isOperator.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/isOperator.js new file mode 100644 index 000000000..04488591a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/isOperator.js @@ -0,0 +1,14 @@ +'use strict'; + +const specialKeys = new Set([ + '$ref', + '$id', + '$db' +]); + +module.exports = function isOperator(path) { + return ( + path[0] === '$' && + !specialKeys.has(path) + ); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/sanitizeFilter.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/sanitizeFilter.js new file mode 100644 index 000000000..1147df369 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/sanitizeFilter.js @@ -0,0 +1,38 @@ +'use strict'; + +const hasDollarKeys = require('./hasDollarKeys'); +const { trustedSymbol } = require('./trusted'); + +module.exports = function sanitizeFilter(filter) { + if (filter == null || typeof filter !== 'object') { + return filter; + } + if (Array.isArray(filter)) { + for (const subfilter of filter) { + sanitizeFilter(subfilter); + } + return filter; + } + + const filterKeys = Object.keys(filter); + for (const key of filterKeys) { + const value = filter[key]; + if (value != null && value[trustedSymbol]) { + continue; + } + if (key === '$and' || key === '$or') { + sanitizeFilter(value); + continue; + } + + if (hasDollarKeys(value)) { + const keys = Object.keys(value); + if (keys.length === 1 && keys[0] === '$eq') { + continue; + } + filter[key] = { $eq: filter[key] }; + } + } + + return filter; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/sanitizeProjection.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/sanitizeProjection.js new file mode 100644 index 000000000..0c0348759 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/sanitizeProjection.js @@ -0,0 +1,14 @@ +'use strict'; + +module.exports = function sanitizeProjection(projection) { + if (projection == null) { + return; + } + + const keys = Object.keys(projection); + for (let i = 0; i < keys.length; ++i) { + if (typeof projection[keys[i]] === 'string') { + projection[keys[i]] = 1; + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/selectPopulatedFields.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/selectPopulatedFields.js new file mode 100644 index 000000000..dc96caf6f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/selectPopulatedFields.js @@ -0,0 +1,62 @@ +'use strict'; + +const isExclusive = require('../projection/isExclusive'); +const isInclusive = require('../projection/isInclusive'); + +/*! + * ignore + */ + +module.exports = function selectPopulatedFields(fields, userProvidedFields, populateOptions) { + if (populateOptions == null) { + return; + } + + const paths = Object.keys(populateOptions); + userProvidedFields = userProvidedFields || {}; + if (isInclusive(fields)) { + for (const path of paths) { + if (!isPathInFields(userProvidedFields, path)) { + fields[path] = 1; + } else if (userProvidedFields[path] === 0) { + delete fields[path]; + } + + const refPath = populateOptions[path]?.refPath; + if (typeof refPath === 'string') { + if (!isPathInFields(userProvidedFields, refPath)) { + fields[refPath] = 1; + } else if (userProvidedFields[refPath] === 0) { + delete fields[refPath]; + } + } + } + } else if (isExclusive(fields)) { + for (const path of paths) { + if (userProvidedFields[path] == null) { + delete fields[path]; + } + const refPath = populateOptions[path]?.refPath; + if (typeof refPath === 'string' && userProvidedFields[refPath] == null) { + delete fields[refPath]; + } + } + } +}; + +/*! + * ignore + */ + +function isPathInFields(userProvidedFields, path) { + const pieces = path.split('.'); + const len = pieces.length; + let cur = pieces[0]; + for (let i = 1; i < len; ++i) { + if (userProvidedFields[cur] != null || userProvidedFields[cur + '.$'] != null) { + return true; + } + cur += '.' + pieces[i]; + } + return userProvidedFields[cur] != null || userProvidedFields[cur + '.$'] != null; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/trusted.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/trusted.js new file mode 100644 index 000000000..1e460eb50 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/trusted.js @@ -0,0 +1,13 @@ +'use strict'; + +const trustedSymbol = Symbol('mongoose#trustedSymbol'); + +exports.trustedSymbol = trustedSymbol; + +exports.trusted = function trusted(obj) { + if (obj == null || typeof obj !== 'object') { + return obj; + } + obj[trustedSymbol] = true; + return obj; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/validOps.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/validOps.js new file mode 100644 index 000000000..2d1aa477b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/query/validOps.js @@ -0,0 +1,3 @@ +'use strict'; + +module.exports = require('../../constants').queryMiddlewareFunctions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/addAutoId.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/addAutoId.js new file mode 100644 index 000000000..82c0c603c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/addAutoId.js @@ -0,0 +1,7 @@ +'use strict'; + +module.exports = function addAutoId(schema) { + const _obj = { _id: { auto: true } }; + _obj._id[schema.options.typeKey] = 'ObjectId'; + schema.add(_obj); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyBuiltinPlugins.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyBuiltinPlugins.js new file mode 100644 index 000000000..8bd7319cb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyBuiltinPlugins.js @@ -0,0 +1,12 @@ +'use strict'; + +const builtinPlugins = require('../../plugins'); + +module.exports = function applyBuiltinPlugins(schema) { + for (const plugin of Object.values(builtinPlugins)) { + plugin(schema, { deduplicate: true }); + } + schema.plugins = Object.values(builtinPlugins). + map(fn => ({ fn, opts: { deduplicate: true } })). + concat(schema.plugins); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyPlugins.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyPlugins.js new file mode 100644 index 000000000..fe9768007 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyPlugins.js @@ -0,0 +1,55 @@ +'use strict'; + +module.exports = function applyPlugins(schema, plugins, options, cacheKey) { + if (schema[cacheKey]) { + return; + } + schema[cacheKey] = true; + + if (!options || !options.skipTopLevel) { + let pluginTags = null; + for (const plugin of plugins) { + const tags = plugin[1] == null ? null : plugin[1].tags; + if (!Array.isArray(tags)) { + schema.plugin(plugin[0], plugin[1]); + continue; + } + + pluginTags = pluginTags || new Set(schema.options.pluginTags || []); + if (!tags.find(tag => pluginTags.has(tag))) { + continue; + } + schema.plugin(plugin[0], plugin[1]); + } + } + + options = Object.assign({}, options); + delete options.skipTopLevel; + + if (options.applyPluginsToChildSchemas !== false) { + for (const path of Object.keys(schema.paths)) { + const type = schema.paths[path]; + if (type.schema != null) { + applyPlugins(type.schema, plugins, options, cacheKey); + + // Recompile schema because plugins may have changed it, see gh-7572 + type.caster.prototype.$__setSchema(type.schema); + } + } + } + + const discriminators = schema.discriminators; + if (discriminators == null) { + return; + } + + const applyPluginsToDiscriminators = options.applyPluginsToDiscriminators; + + const keys = Object.keys(discriminators); + for (const discriminatorKey of keys) { + const discriminatorSchema = discriminators[discriminatorKey]; + + applyPlugins(discriminatorSchema, plugins, + { skipTopLevel: !applyPluginsToDiscriminators }, cacheKey); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyReadConcern.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyReadConcern.js new file mode 100644 index 000000000..80d4da6eb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyReadConcern.js @@ -0,0 +1,22 @@ +'use strict'; + +const get = require('../get'); + +module.exports = function applyReadConcern(schema, options) { + if (options.readConcern !== undefined) { + return; + } + + // Don't apply default read concern to operations in transactions, + // because you shouldn't set read concern on individual operations + // within a transaction. + // See: https://www.mongodb.com/docs/manual/reference/read-concern/ + if (options && options.session && options.session.transaction) { + return; + } + + const level = get(schema, 'options.readConcern.level', null); + if (level != null) { + options.readConcern = { level }; + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyWriteConcern.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyWriteConcern.js new file mode 100644 index 000000000..270981108 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/applyWriteConcern.js @@ -0,0 +1,39 @@ +'use strict'; + +const get = require('../get'); + +module.exports = function applyWriteConcern(schema, options) { + if (options.writeConcern != null) { + return; + } + // Don't apply default write concern to operations in transactions, + // because setting write concern on an operation in a transaction is an error + // See: https://www.mongodb.com/docs/manual/reference/write-concern/ + if (options && options.session && options.session.transaction) { + return; + } + const writeConcern = get(schema, 'options.writeConcern', {}); + if (Object.keys(writeConcern).length != 0) { + options.writeConcern = {}; + if (!('w' in options) && writeConcern.w != null) { + options.writeConcern.w = writeConcern.w; + } + if (!('j' in options) && writeConcern.j != null) { + options.writeConcern.j = writeConcern.j; + } + if (!('wtimeout' in options) && writeConcern.wtimeout != null) { + options.writeConcern.wtimeout = writeConcern.wtimeout; + } + } + else { + if (!('w' in options) && writeConcern.w != null) { + options.w = writeConcern.w; + } + if (!('j' in options) && writeConcern.j != null) { + options.j = writeConcern.j; + } + if (!('wtimeout' in options) && writeConcern.wtimeout != null) { + options.wtimeout = writeConcern.wtimeout; + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/cleanPositionalOperators.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/cleanPositionalOperators.js new file mode 100644 index 000000000..f104d0398 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/cleanPositionalOperators.js @@ -0,0 +1,12 @@ +'use strict'; + +/** + * For consistency's sake, we replace positional operator `$` and array filters + * `$[]` and `$[foo]` with `0` when looking up schema paths. + */ + +module.exports = function cleanPositionalOperators(path) { + return path. + replace(/\.\$(\[[^\]]*\])?(?=\.)/g, '.0'). + replace(/\.\$(\[[^\]]*\])?$/g, '.0'); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getIndexes.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getIndexes.js new file mode 100644 index 000000000..63aa4add4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getIndexes.js @@ -0,0 +1,172 @@ +'use strict'; + +const get = require('../get'); +const helperIsObject = require('../isObject'); +const decorateDiscriminatorIndexOptions = require('../indexes/decorateDiscriminatorIndexOptions'); + +/** + * Gather all indexes defined in the schema, including single nested, + * document arrays, and embedded discriminators. + * @param {Schema} schema + * @api private + */ + +module.exports = function getIndexes(schema) { + let indexes = []; + const schemaStack = new WeakMap(); + const indexTypes = schema.constructor.indexTypes; + const indexByName = new Map(); + + collectIndexes(schema); + return indexes; + + function collectIndexes(schema, prefix, baseSchema) { + // Ignore infinitely nested schemas, if we've already seen this schema + // along this path there must be a cycle + if (schemaStack.has(schema)) { + return; + } + schemaStack.set(schema, true); + + prefix = prefix || ''; + const keys = Object.keys(schema.paths); + + for (const key of keys) { + const path = schema.paths[key]; + if (baseSchema != null && baseSchema.paths[key]) { + // If looking at an embedded discriminator schema, don't look at paths + // that the + continue; + } + + if (path.$isMongooseDocumentArray || path.$isSingleNested) { + if (get(path, 'options.excludeIndexes') !== true && + get(path, 'schemaOptions.excludeIndexes') !== true && + get(path, 'schema.options.excludeIndexes') !== true) { + collectIndexes(path.schema, prefix + key + '.'); + } + + if (path.schema.discriminators != null) { + const discriminators = path.schema.discriminators; + const discriminatorKeys = Object.keys(discriminators); + for (const discriminatorKey of discriminatorKeys) { + collectIndexes(discriminators[discriminatorKey], + prefix + key + '.', path.schema); + } + } + + // Retained to minimize risk of backwards breaking changes due to + // gh-6113 + if (path.$isMongooseDocumentArray) { + continue; + } + } + + const index = path._index || (path.caster && path.caster._index); + + if (index !== false && index !== null && index !== undefined) { + const field = {}; + const isObject = helperIsObject(index); + const options = isObject ? index : {}; + const type = typeof index === 'string' ? index : + isObject ? index.type : + false; + + if (type && indexTypes.indexOf(type) !== -1) { + field[prefix + key] = type; + } else if (options.text) { + field[prefix + key] = 'text'; + delete options.text; + } else { + let isDescendingIndex = false; + if (index === 'descending' || index === 'desc') { + isDescendingIndex = true; + } else if (index === 'ascending' || index === 'asc') { + isDescendingIndex = false; + } else { + isDescendingIndex = Number(index) === -1; + } + + field[prefix + key] = isDescendingIndex ? -1 : 1; + } + + delete options.type; + if (!('background' in options)) { + options.background = true; + } + if (schema.options.autoIndex != null) { + options._autoIndex = schema.options.autoIndex; + } + + const indexName = options && options.name; + + if (typeof indexName === 'string') { + if (indexByName.has(indexName)) { + Object.assign(indexByName.get(indexName), field); + } else { + indexes.push([field, options]); + indexByName.set(indexName, field); + } + } else { + indexes.push([field, options]); + indexByName.set(indexName, field); + } + } + } + + schemaStack.delete(schema); + + if (prefix) { + fixSubIndexPaths(schema, prefix); + } else { + schema._indexes.forEach(function(index) { + const options = index[1]; + if (!('background' in options)) { + options.background = true; + } + decorateDiscriminatorIndexOptions(schema, options); + }); + indexes = indexes.concat(schema._indexes); + } + } + + /** + * Checks for indexes added to subdocs using Schema.index(). + * These indexes need their paths prefixed properly. + * + * schema._indexes = [ [indexObj, options], [indexObj, options] ..] + * @param {Schema} schema + * @param {String} prefix + * @api private + */ + + function fixSubIndexPaths(schema, prefix) { + const subindexes = schema._indexes; + const len = subindexes.length; + for (let i = 0; i < len; ++i) { + const indexObj = subindexes[i][0]; + const indexOptions = subindexes[i][1]; + const keys = Object.keys(indexObj); + const klen = keys.length; + const newindex = {}; + + // use forward iteration, order matters + for (let j = 0; j < klen; ++j) { + const key = keys[j]; + newindex[prefix + key] = indexObj[key]; + } + + const newIndexOptions = Object.assign({}, indexOptions); + if (indexOptions != null && indexOptions.partialFilterExpression != null) { + newIndexOptions.partialFilterExpression = {}; + const partialFilterExpression = indexOptions.partialFilterExpression; + for (const key of Object.keys(partialFilterExpression)) { + newIndexOptions.partialFilterExpression[prefix + key] = + partialFilterExpression[key]; + } + } + + indexes.push([newindex, newIndexOptions]); + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js new file mode 100644 index 000000000..83b7fd88c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js @@ -0,0 +1,28 @@ +'use strict'; + +const get = require('../get'); + +module.exports = function getKeysInSchemaOrder(schema, val, path) { + const schemaKeys = path != null ? Object.keys(get(schema.tree, path, {})) : Object.keys(schema.tree); + const valKeys = new Set(Object.keys(val)); + + let keys; + if (valKeys.size > 1) { + keys = new Set(); + for (const key of schemaKeys) { + if (valKeys.has(key)) { + keys.add(key); + } + } + for (const key of valKeys) { + if (!keys.has(key)) { + keys.add(key); + } + } + keys = Array.from(keys); + } else { + keys = Array.from(valKeys); + } + + return keys; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getPath.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getPath.js new file mode 100644 index 000000000..b88106954 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getPath.js @@ -0,0 +1,37 @@ +'use strict'; + +const numberRE = /^\d+$/; + +/** + * Behaves like `Schema#path()`, except for it also digs into arrays without + * needing to put `.0.`, so `getPath(schema, 'docArr.elProp')` works. + * @api private + */ + +module.exports = function getPath(schema, path) { + let schematype = schema.path(path); + if (schematype != null) { + return schematype; + } + const pieces = path.split('.'); + let cur = ''; + let isArray = false; + + for (const piece of pieces) { + if (isArray && numberRE.test(piece)) { + continue; + } + cur = cur.length === 0 ? piece : cur + '.' + piece; + + schematype = schema.path(cur); + if (schematype != null && schematype.schema) { + schema = schematype.schema; + cur = ''; + if (!isArray && schematype.$isMongooseDocumentArray) { + isArray = true; + } + } + } + + return schematype; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getSubdocumentStrictValue.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getSubdocumentStrictValue.js new file mode 100644 index 000000000..8a8f83e5b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/getSubdocumentStrictValue.js @@ -0,0 +1,32 @@ +'use strict'; + +/** + * Find the `strict` mode setting for the deepest subdocument along a given path + * to ensure we have the correct default value for `strict`. When setting values + * underneath a subdocument, we should use the subdocument's `strict` setting by + * default, not the top-level document's. + * + * @param {Schema} schema + * @param {String[]} parts + * @returns {boolean | 'throw' | undefined} + */ + +module.exports = function getSubdocumentStrictValue(schema, parts) { + if (parts.length === 1) { + return undefined; + } + let cur = parts[0]; + let strict = undefined; + for (let i = 0; i < parts.length - 1; ++i) { + const curSchemaType = schema.path(cur); + if (curSchemaType && curSchemaType.schema) { + strict = curSchemaType.schema.options.strict; + schema = curSchemaType.schema; + cur = curSchemaType.$isMongooseDocumentArray && !isNaN(parts[i + 1]) ? '' : parts[i + 1]; + } else { + cur += cur.length ? ('.' + parts[i + 1]) : parts[i + 1]; + } + } + + return strict; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/handleIdOption.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/handleIdOption.js new file mode 100644 index 000000000..335ff2b75 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/handleIdOption.js @@ -0,0 +1,20 @@ +'use strict'; + +const addAutoId = require('./addAutoId'); + +module.exports = function handleIdOption(schema, options) { + if (options == null || options._id == null) { + return schema; + } + + schema = schema.clone(); + if (!options._id) { + schema.remove('_id'); + schema.options._id = false; + } else if (!schema.paths['_id']) { + addAutoId(schema); + schema.options._id = true; + } + + return schema; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/handleTimestampOption.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/handleTimestampOption.js new file mode 100644 index 000000000..0f9c30c36 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/handleTimestampOption.js @@ -0,0 +1,24 @@ +'use strict'; + +module.exports = handleTimestampOption; + +/*! + * ignore + */ + +function handleTimestampOption(arg, prop) { + if (arg == null) { + return null; + } + + if (typeof arg === 'boolean') { + return prop; + } + if (typeof arg[prop] === 'boolean') { + return arg[prop] ? prop : null; + } + if (!(prop in arg)) { + return prop; + } + return arg[prop]; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/idGetter.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/idGetter.js new file mode 100644 index 000000000..5b5765312 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/idGetter.js @@ -0,0 +1,34 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function addIdGetter(schema) { + // ensure the documents receive an id getter unless disabled + const autoIdGetter = !schema.paths['id'] && + schema.paths['_id'] && + schema.options.id; + if (!autoIdGetter) { + return schema; + } + if (schema.aliases && schema.aliases.id) { + return schema; + } + schema.virtual('id').get(idGetter); + + return schema; +}; + +/** + * Returns this documents _id cast to a string. + * @api private + */ + +function idGetter() { + if (this._id != null) { + return this._id.toString(); + } + + return null; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/merge.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/merge.js new file mode 100644 index 000000000..e7bb91f6a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schema/merge.js @@ -0,0 +1,36 @@ +'use strict'; + +module.exports = function merge(s1, s2, skipConflictingPaths) { + const paths = Object.keys(s2.tree); + const pathsToAdd = {}; + for (const key of paths) { + if (skipConflictingPaths && (s1.paths[key] || s1.nested[key] || s1.singleNestedPaths[key])) { + continue; + } + pathsToAdd[key] = s2.tree[key]; + } + s1.options._isMerging = true; + s1.add(pathsToAdd, null); + delete s1.options._isMerging; + + s1.callQueue = s1.callQueue.concat(s2.callQueue); + s1.method(s2.methods); + s1.static(s2.statics); + + for (const [option, value] of Object.entries(s2._userProvidedOptions)) { + if (!(option in s1._userProvidedOptions)) { + s1.set(option, value); + } + } + + for (const query in s2.query) { + s1.query[query] = s2.query[query]; + } + + for (const virtual in s2.virtuals) { + s1.virtuals[virtual] = s2.virtuals[virtual].clone(); + } + + s1._indexes = s1._indexes.concat(s2._indexes || []); + s1.s.hooks.merge(s2.s.hooks, false); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schematype/handleImmutable.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schematype/handleImmutable.js new file mode 100644 index 000000000..cc22c9149 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/schematype/handleImmutable.js @@ -0,0 +1,50 @@ +'use strict'; + +const StrictModeError = require('../../error/strict'); + +/*! + * ignore + */ + +module.exports = function(schematype) { + if (schematype.$immutable) { + schematype.$immutableSetter = createImmutableSetter(schematype.path, + schematype.options.immutable); + schematype.set(schematype.$immutableSetter); + } else if (schematype.$immutableSetter) { + schematype.setters = schematype.setters. + filter(fn => fn !== schematype.$immutableSetter); + delete schematype.$immutableSetter; + } +}; + +function createImmutableSetter(path, immutable) { + return function immutableSetter(v, _priorVal, _doc, options) { + if (this == null || this.$__ == null) { + return v; + } + if (this.isNew) { + return v; + } + if (options && options.overwriteImmutable) { + return v; + } + + const _immutable = typeof immutable === 'function' ? + immutable.call(this, this) : + immutable; + if (!_immutable) { + return v; + } + + const _value = this.$__.priorDoc != null ? + this.$__.priorDoc.$__getValue(path) : + this.$__getValue(path); + if (this.$__.strictMode === 'throw' && v !== _value) { + throw new StrictModeError(path, 'Path `' + path + '` is immutable ' + + 'and strict mode is set to throw.', true); + } + + return _value; + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/setDefaultsOnInsert.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/setDefaultsOnInsert.js new file mode 100644 index 000000000..a94a5b35f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/setDefaultsOnInsert.js @@ -0,0 +1,132 @@ +'use strict'; +const modifiedPaths = require('./common').modifiedPaths; +const get = require('./get'); + +/** + * Applies defaults to update and findOneAndUpdate operations. + * + * @param {Object} filter + * @param {Schema} schema + * @param {Object} castedDoc + * @param {Object} options + * @method setDefaultsOnInsert + * @api private + */ + +module.exports = function(filter, schema, castedDoc, options) { + options = options || {}; + + const shouldSetDefaultsOnInsert = + options.setDefaultsOnInsert != null ? + options.setDefaultsOnInsert : + schema.base.options.setDefaultsOnInsert; + + if (!options.upsert || shouldSetDefaultsOnInsert === false) { + return castedDoc; + } + + const keys = Object.keys(castedDoc || {}); + const updatedKeys = {}; + const updatedValues = {}; + const numKeys = keys.length; + const modified = {}; + + let hasDollarUpdate = false; + + for (let i = 0; i < numKeys; ++i) { + if (keys[i].startsWith('$')) { + modifiedPaths(castedDoc[keys[i]], '', modified); + hasDollarUpdate = true; + } + } + + if (!hasDollarUpdate) { + modifiedPaths(castedDoc, '', modified); + } + + const paths = Object.keys(filter); + const numPaths = paths.length; + for (let i = 0; i < numPaths; ++i) { + const path = paths[i]; + const condition = filter[path]; + if (condition && typeof condition === 'object') { + const conditionKeys = Object.keys(condition); + const numConditionKeys = conditionKeys.length; + let hasDollarKey = false; + for (let j = 0; j < numConditionKeys; ++j) { + if (conditionKeys[j].startsWith('$')) { + hasDollarKey = true; + break; + } + } + if (hasDollarKey) { + continue; + } + } + updatedKeys[path] = true; + modified[path] = true; + } + + if (options && options.overwrite && !hasDollarUpdate) { + // Defaults will be set later, since we're overwriting we'll cast + // the whole update to a document + return castedDoc; + } + + schema.eachPath(function(path, schemaType) { + // Skip single nested paths if underneath a map + if (schemaType.path === '_id' && schemaType.options.auto) { + return; + } + const def = schemaType.getDefault(null, true); + if (isModified(modified, path)) { + return; + } + if (typeof def === 'undefined') { + return; + } + if (schemaType.splitPath().includes('$*')) { + // Skip defaults underneath maps. We should never do `$setOnInsert` on a path with `$*` + return; + } + + castedDoc = castedDoc || {}; + castedDoc.$setOnInsert = castedDoc.$setOnInsert || {}; + if (get(castedDoc, path) == null) { + castedDoc.$setOnInsert[path] = def; + } + updatedValues[path] = def; + }); + + return castedDoc; +}; + +function isModified(modified, path) { + if (modified[path]) { + return true; + } + + // Is any parent path of `path` modified? + const sp = path.split('.'); + let cur = sp[0]; + for (let i = 1; i < sp.length; ++i) { + if (modified[cur]) { + return true; + } + cur += '.' + sp[i]; + } + + // Is any child of `path` modified? + const modifiedKeys = Object.keys(modified); + if (modifiedKeys.length) { + const parentPath = path + '.'; + + for (const modifiedPath of modifiedKeys) { + if (modifiedPath.slice(0, path.length + 1) === parentPath) { + return true; + } + } + } + + return false; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/specialProperties.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/specialProperties.js new file mode 100644 index 000000000..8a961e4e8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/specialProperties.js @@ -0,0 +1,3 @@ +'use strict'; + +module.exports = new Set(['__proto__', 'constructor', 'prototype']); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/symbols.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/symbols.js new file mode 100644 index 000000000..a9af890a5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/symbols.js @@ -0,0 +1,20 @@ +'use strict'; + +exports.arrayAtomicsBackupSymbol = Symbol('mongoose#Array#atomicsBackup'); +exports.arrayAtomicsSymbol = Symbol('mongoose#Array#_atomics'); +exports.arrayParentSymbol = Symbol('mongoose#Array#_parent'); +exports.arrayPathSymbol = Symbol('mongoose#Array#_path'); +exports.arraySchemaSymbol = Symbol('mongoose#Array#_schema'); +exports.documentArrayParent = Symbol('mongoose#documentArrayParent'); +exports.documentIsSelected = Symbol('mongoose#Document#isSelected'); +exports.documentIsModified = Symbol('mongoose#Document#isModified'); +exports.documentModifiedPaths = Symbol('mongoose#Document#modifiedPaths'); +exports.documentSchemaSymbol = Symbol('mongoose#Document#schema'); +exports.getSymbol = Symbol('mongoose#Document#get'); +exports.modelSymbol = Symbol('mongoose#Model'); +exports.objectIdSymbol = Symbol('mongoose#ObjectId'); +exports.populateModelSymbol = Symbol('mongoose#PopulateOptions#Model'); +exports.schemaTypeSymbol = Symbol('mongoose#schemaType'); +exports.sessionNewDocuments = Symbol('mongoose#ClientSession#newDocuments'); +exports.scopeSymbol = Symbol('mongoose#Document#scope'); +exports.validatorErrorSymbol = Symbol('mongoose#validatorError'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timers.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timers.js new file mode 100644 index 000000000..eb7e6453f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timers.js @@ -0,0 +1,3 @@ +'use strict'; + +exports.setTimeout = setTimeout; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timestamps/setDocumentTimestamps.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timestamps/setDocumentTimestamps.js new file mode 100644 index 000000000..c1b6d5fc2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timestamps/setDocumentTimestamps.js @@ -0,0 +1,26 @@ +'use strict'; + +module.exports = function setDocumentTimestamps(doc, timestampOption, currentTime, createdAt, updatedAt) { + const skipUpdatedAt = timestampOption != null && timestampOption.updatedAt === false; + const skipCreatedAt = timestampOption != null && timestampOption.createdAt === false; + + const defaultTimestamp = currentTime != null ? + currentTime() : + doc.ownerDocument().constructor.base.now(); + + if (!skipCreatedAt && + (doc.isNew || doc.$isSubdocument) && + createdAt && + !doc.$__getValue(createdAt) && + doc.$__isSelected(createdAt)) { + doc.$set(createdAt, defaultTimestamp, undefined, { overwriteImmutable: true }); + } + + if (!skipUpdatedAt && updatedAt && (doc.isNew || doc.$isModified())) { + let ts = defaultTimestamp; + if (doc.isNew && createdAt != null) { + ts = doc.$__getValue(createdAt); + } + doc.$set(updatedAt, ts); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timestamps/setupTimestamps.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timestamps/setupTimestamps.js new file mode 100644 index 000000000..f6ba12b98 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/timestamps/setupTimestamps.js @@ -0,0 +1,110 @@ +'use strict'; + +const applyTimestampsToChildren = require('../update/applyTimestampsToChildren'); +const applyTimestampsToUpdate = require('../update/applyTimestampsToUpdate'); +const get = require('../get'); +const handleTimestampOption = require('../schema/handleTimestampOption'); +const setDocumentTimestamps = require('./setDocumentTimestamps'); +const symbols = require('../../schema/symbols'); + +const replaceOps = new Set([ + 'replaceOne', + 'findOneAndReplace' +]); + +module.exports = function setupTimestamps(schema, timestamps) { + const childHasTimestamp = schema.childSchemas.find(withTimestamp); + function withTimestamp(s) { + const ts = s.schema.options.timestamps; + return !!ts; + } + if (!timestamps && !childHasTimestamp) { + return; + } + const createdAt = handleTimestampOption(timestamps, 'createdAt'); + const updatedAt = handleTimestampOption(timestamps, 'updatedAt'); + const currentTime = timestamps != null && timestamps.hasOwnProperty('currentTime') ? + timestamps.currentTime : + null; + const schemaAdditions = {}; + + schema.$timestamps = { createdAt: createdAt, updatedAt: updatedAt }; + + if (createdAt && !schema.paths[createdAt]) { + const baseImmutableCreatedAt = schema.base != null ? schema.base.get('timestamps.createdAt.immutable') : null; + const immutable = baseImmutableCreatedAt != null ? baseImmutableCreatedAt : true; + schemaAdditions[createdAt] = { [schema.options.typeKey || 'type']: Date, immutable }; + } + + if (updatedAt && !schema.paths[updatedAt]) { + schemaAdditions[updatedAt] = Date; + } + + schema.add(schemaAdditions); + + schema.pre('save', function timestampsPreSave(next) { + const timestampOption = get(this, '$__.saveOptions.timestamps'); + if (timestampOption === false) { + return next(); + } + + setDocumentTimestamps(this, timestampOption, currentTime, createdAt, updatedAt); + + next(); + }); + + schema.methods.initializeTimestamps = function() { + const ts = currentTime != null ? + currentTime() : this.constructor.base.now(); + + + if (createdAt && !this.get(createdAt)) { + this.$set(createdAt, ts); + } + if (updatedAt && !this.get(updatedAt)) { + this.$set(updatedAt, ts); + } + if (this.$isSubdocument) { + return this; + } + + const subdocs = this.$getAllSubdocs(); + for (const subdoc of subdocs) { + if (subdoc.initializeTimestamps) { + subdoc.initializeTimestamps(); + } + } + + return this; + }; + + _setTimestampsOnUpdate[symbols.builtInMiddleware] = true; + + const opts = { query: true, model: false }; + schema.pre('findOneAndReplace', opts, _setTimestampsOnUpdate); + schema.pre('findOneAndUpdate', opts, _setTimestampsOnUpdate); + schema.pre('replaceOne', opts, _setTimestampsOnUpdate); + schema.pre('update', opts, _setTimestampsOnUpdate); + schema.pre('updateOne', opts, _setTimestampsOnUpdate); + schema.pre('updateMany', opts, _setTimestampsOnUpdate); + + function _setTimestampsOnUpdate(next) { + const now = currentTime != null ? + currentTime() : + this.model.base.now(); + // Replacing with null update should still trigger timestamps + if (replaceOps.has(this.op) && this.getUpdate() == null) { + this.setUpdate({}); + } + applyTimestampsToUpdate( + now, + createdAt, + updatedAt, + this.getUpdate(), + this._mongooseOptions, + replaceOps.has(this.op) + ); + applyTimestampsToChildren(now, this.getUpdate(), this.model.schema); + next(); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/allServersUnknown.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/allServersUnknown.js new file mode 100644 index 000000000..45c40ba4d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/allServersUnknown.js @@ -0,0 +1,12 @@ +'use strict'; + +const getConstructorName = require('../getConstructorName'); + +module.exports = function allServersUnknown(topologyDescription) { + if (getConstructorName(topologyDescription) !== 'TopologyDescription') { + return false; + } + + const servers = Array.from(topologyDescription.servers.values()); + return servers.length > 0 && servers.every(server => server.type === 'Unknown'); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/isAtlas.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/isAtlas.js new file mode 100644 index 000000000..445a8b49c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/isAtlas.js @@ -0,0 +1,31 @@ +'use strict'; + +const getConstructorName = require('../getConstructorName'); + +/** + * @typedef { import('mongodb').TopologyDescription } TopologyDescription + */ + +/** + * Checks if topologyDescription contains servers connected to an atlas instance + * + * @param {TopologyDescription} topologyDescription + * @returns {boolean} + */ +module.exports = function isAtlas(topologyDescription) { + if (getConstructorName(topologyDescription) !== 'TopologyDescription') { + return false; + } + + if (topologyDescription.servers.size === 0) { + return false; + } + + for (const server of topologyDescription.servers.values()) { + if (server.host.endsWith('.mongodb.net') === false || server.port !== 27017) { + return false; + } + } + + return true; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/isSSLError.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/isSSLError.js new file mode 100644 index 000000000..17c1c5010 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/topology/isSSLError.js @@ -0,0 +1,16 @@ +'use strict'; + +const getConstructorName = require('../getConstructorName'); + +const nonSSLMessage = 'Client network socket disconnected before secure TLS ' + + 'connection was established'; + +module.exports = function isSSLError(topologyDescription) { + if (getConstructorName(topologyDescription) !== 'TopologyDescription') { + return false; + } + + const descriptions = Array.from(topologyDescription.servers.values()); + return descriptions.length > 0 && + descriptions.every(descr => descr.error && descr.error.message.indexOf(nonSSLMessage) !== -1); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/applyTimestampsToChildren.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/applyTimestampsToChildren.js new file mode 100644 index 000000000..5b8e7deb5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/applyTimestampsToChildren.js @@ -0,0 +1,193 @@ +'use strict'; + +const cleanPositionalOperators = require('../schema/cleanPositionalOperators'); +const handleTimestampOption = require('../schema/handleTimestampOption'); + +module.exports = applyTimestampsToChildren; + +/*! + * ignore + */ + +function applyTimestampsToChildren(now, update, schema) { + if (update == null) { + return; + } + + const keys = Object.keys(update); + const hasDollarKey = keys.some(key => key[0] === '$'); + + if (hasDollarKey) { + if (update.$push) { + _applyTimestampToUpdateOperator(update.$push); + } + if (update.$addToSet) { + _applyTimestampToUpdateOperator(update.$addToSet); + } + if (update.$set != null) { + const keys = Object.keys(update.$set); + for (const key of keys) { + applyTimestampsToUpdateKey(schema, key, update.$set, now); + } + } + if (update.$setOnInsert != null) { + const keys = Object.keys(update.$setOnInsert); + for (const key of keys) { + applyTimestampsToUpdateKey(schema, key, update.$setOnInsert, now); + } + } + } + + const updateKeys = Object.keys(update).filter(key => key[0] !== '$'); + for (const key of updateKeys) { + applyTimestampsToUpdateKey(schema, key, update, now); + } + + function _applyTimestampToUpdateOperator(op) { + for (const key of Object.keys(op)) { + const $path = schema.path(key.replace(/\.\$\./i, '.').replace(/.\$$/, '')); + if (op[key] && + $path && + $path.$isMongooseDocumentArray && + $path.schema.options.timestamps) { + const timestamps = $path.schema.options.timestamps; + const createdAt = handleTimestampOption(timestamps, 'createdAt'); + const updatedAt = handleTimestampOption(timestamps, 'updatedAt'); + if (op[key].$each) { + op[key].$each.forEach(function(subdoc) { + if (updatedAt != null) { + subdoc[updatedAt] = now; + } + if (createdAt != null) { + subdoc[createdAt] = now; + } + + applyTimestampsToChildren(now, subdoc, $path.schema); + }); + } else { + if (updatedAt != null) { + op[key][updatedAt] = now; + } + if (createdAt != null) { + op[key][createdAt] = now; + } + + applyTimestampsToChildren(now, op[key], $path.schema); + } + } + } + } +} + +function applyTimestampsToDocumentArray(arr, schematype, now) { + const timestamps = schematype.schema.options.timestamps; + + const len = arr.length; + + if (!timestamps) { + for (let i = 0; i < len; ++i) { + applyTimestampsToChildren(now, arr[i], schematype.schema); + } + return; + } + + const createdAt = handleTimestampOption(timestamps, 'createdAt'); + const updatedAt = handleTimestampOption(timestamps, 'updatedAt'); + for (let i = 0; i < len; ++i) { + if (updatedAt != null) { + arr[i][updatedAt] = now; + } + if (createdAt != null) { + arr[i][createdAt] = now; + } + + applyTimestampsToChildren(now, arr[i], schematype.schema); + } +} + +function applyTimestampsToSingleNested(subdoc, schematype, now) { + const timestamps = schematype.schema.options.timestamps; + if (!timestamps) { + applyTimestampsToChildren(now, subdoc, schematype.schema); + return; + } + + const createdAt = handleTimestampOption(timestamps, 'createdAt'); + const updatedAt = handleTimestampOption(timestamps, 'updatedAt'); + if (updatedAt != null) { + subdoc[updatedAt] = now; + } + if (createdAt != null) { + subdoc[createdAt] = now; + } + + applyTimestampsToChildren(now, subdoc, schematype.schema); +} + +function applyTimestampsToUpdateKey(schema, key, update, now) { + // Replace positional operator `$` and array filters `$[]` and `$[.*]` + const keyToSearch = cleanPositionalOperators(key); + const path = schema.path(keyToSearch); + if (!path) { + return; + } + + const parentSchemaTypes = []; + const pieces = keyToSearch.split('.'); + for (let i = pieces.length - 1; i > 0; --i) { + const s = schema.path(pieces.slice(0, i).join('.')); + if (s != null && + (s.$isMongooseDocumentArray || s.$isSingleNested)) { + parentSchemaTypes.push({ parentPath: key.split('.').slice(0, i).join('.'), parentSchemaType: s }); + } + } + + if (Array.isArray(update[key]) && path.$isMongooseDocumentArray) { + applyTimestampsToDocumentArray(update[key], path, now); + } else if (update[key] && path.$isSingleNested) { + applyTimestampsToSingleNested(update[key], path, now); + } else if (parentSchemaTypes.length > 0) { + for (const item of parentSchemaTypes) { + const parentPath = item.parentPath; + const parentSchemaType = item.parentSchemaType; + const timestamps = parentSchemaType.schema.options.timestamps; + const updatedAt = handleTimestampOption(timestamps, 'updatedAt'); + + if (!timestamps || updatedAt == null) { + continue; + } + + if (parentSchemaType.$isSingleNested) { + // Single nested is easy + update[parentPath + '.' + updatedAt] = now; + } else if (parentSchemaType.$isMongooseDocumentArray) { + let childPath = key.substring(parentPath.length + 1); + + if (/^\d+$/.test(childPath)) { + update[parentPath + '.' + childPath][updatedAt] = now; + continue; + } + + const firstDot = childPath.indexOf('.'); + childPath = firstDot !== -1 ? childPath.substring(0, firstDot) : childPath; + + update[parentPath + '.' + childPath + '.' + updatedAt] = now; + } + } + } else if (path.schema != null && path.schema != schema && update[key]) { + const timestamps = path.schema.options.timestamps; + const createdAt = handleTimestampOption(timestamps, 'createdAt'); + const updatedAt = handleTimestampOption(timestamps, 'updatedAt'); + + if (!timestamps) { + return; + } + + if (updatedAt != null) { + update[key][updatedAt] = now; + } + if (createdAt != null) { + update[key][createdAt] = now; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/applyTimestampsToUpdate.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/applyTimestampsToUpdate.js new file mode 100644 index 000000000..e8d3217fb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/applyTimestampsToUpdate.js @@ -0,0 +1,117 @@ +'use strict'; + +/*! + * ignore + */ + +const get = require('../get'); + +module.exports = applyTimestampsToUpdate; + +/*! + * ignore + */ + +function applyTimestampsToUpdate(now, createdAt, updatedAt, currentUpdate, options, isReplace) { + const updates = currentUpdate; + let _updates = updates; + const timestamps = get(options, 'timestamps', true); + + // Support skipping timestamps at the query level, see gh-6980 + if (!timestamps || updates == null) { + return currentUpdate; + } + + const skipCreatedAt = timestamps != null && timestamps.createdAt === false; + const skipUpdatedAt = timestamps != null && timestamps.updatedAt === false; + + if (isReplace) { + if (currentUpdate && currentUpdate.$set) { + currentUpdate = currentUpdate.$set; + updates.$set = {}; + _updates = updates.$set; + } + if (!skipUpdatedAt && updatedAt && !currentUpdate[updatedAt]) { + _updates[updatedAt] = now; + } + if (!skipCreatedAt && createdAt && !currentUpdate[createdAt]) { + _updates[createdAt] = now; + } + return updates; + } + currentUpdate = currentUpdate || {}; + + if (Array.isArray(updates)) { + // Update with aggregation pipeline + if (updatedAt == null) { + return updates; + } + updates.push({ $set: { [updatedAt]: now } }); + return updates; + } + updates.$set = updates.$set || {}; + if (!skipUpdatedAt && updatedAt && + (!currentUpdate.$currentDate || !currentUpdate.$currentDate[updatedAt])) { + let timestampSet = false; + if (updatedAt.indexOf('.') !== -1) { + const pieces = updatedAt.split('.'); + for (let i = 1; i < pieces.length; ++i) { + const remnant = pieces.slice(-i).join('.'); + const start = pieces.slice(0, -i).join('.'); + if (currentUpdate[start] != null) { + currentUpdate[start][remnant] = now; + timestampSet = true; + break; + } else if (currentUpdate.$set && currentUpdate.$set[start]) { + currentUpdate.$set[start][remnant] = now; + timestampSet = true; + break; + } + } + } + + if (!timestampSet) { + updates.$set[updatedAt] = now; + } + + if (updates.hasOwnProperty(updatedAt)) { + delete updates[updatedAt]; + } + } + + if (!skipCreatedAt && createdAt) { + if (currentUpdate[createdAt]) { + delete currentUpdate[createdAt]; + } + if (currentUpdate.$set && currentUpdate.$set[createdAt]) { + delete currentUpdate.$set[createdAt]; + } + let timestampSet = false; + if (createdAt.indexOf('.') !== -1) { + const pieces = createdAt.split('.'); + for (let i = 1; i < pieces.length; ++i) { + const remnant = pieces.slice(-i).join('.'); + const start = pieces.slice(0, -i).join('.'); + if (currentUpdate[start] != null) { + currentUpdate[start][remnant] = now; + timestampSet = true; + break; + } else if (currentUpdate.$set && currentUpdate.$set[start]) { + currentUpdate.$set[start][remnant] = now; + timestampSet = true; + break; + } + } + } + + if (!timestampSet) { + updates.$setOnInsert = updates.$setOnInsert || {}; + updates.$setOnInsert[createdAt] = now; + } + } + + if (Object.keys(updates.$set).length === 0) { + delete updates.$set; + } + return updates; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/castArrayFilters.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/castArrayFilters.js new file mode 100644 index 000000000..65af785cf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/castArrayFilters.js @@ -0,0 +1,109 @@ +'use strict'; + +const castFilterPath = require('../query/castFilterPath'); +const cleanPositionalOperators = require('../schema/cleanPositionalOperators'); +const getPath = require('../schema/getPath'); +const updatedPathsByArrayFilter = require('./updatedPathsByArrayFilter'); + +module.exports = function castArrayFilters(query) { + const arrayFilters = query.options.arrayFilters; + const update = query.getUpdate(); + const schema = query.schema; + const updatedPathsByFilter = updatedPathsByArrayFilter(update); + + let strictQuery = schema.options.strict; + if (query._mongooseOptions.strict != null) { + strictQuery = query._mongooseOptions.strict; + } + if (query.model && query.model.base.options.strictQuery != null) { + strictQuery = query.model.base.options.strictQuery; + } + if (schema._userProvidedOptions.strictQuery != null) { + strictQuery = schema._userProvidedOptions.strictQuery; + } + if (query._mongooseOptions.strictQuery != null) { + strictQuery = query._mongooseOptions.strictQuery; + } + + _castArrayFilters(arrayFilters, schema, strictQuery, updatedPathsByFilter, query); +}; + +function _castArrayFilters(arrayFilters, schema, strictQuery, updatedPathsByFilter, query) { + if (!Array.isArray(arrayFilters)) { + return; + } + + for (const filter of arrayFilters) { + if (filter == null) { + throw new Error(`Got null array filter in ${arrayFilters}`); + } + const keys = Object.keys(filter).filter(key => filter[key] != null); + if (keys.length === 0) { + continue; + } + + const firstKey = keys[0]; + if (firstKey === '$and' || firstKey === '$or') { + for (const key of keys) { + _castArrayFilters(filter[key], schema, strictQuery, updatedPathsByFilter, query); + } + continue; + } + const dot = firstKey.indexOf('.'); + const filterWildcardPath = dot === -1 ? firstKey : firstKey.substring(0, dot); + if (updatedPathsByFilter[filterWildcardPath] == null) { + continue; + } + const baseFilterPath = cleanPositionalOperators( + updatedPathsByFilter[filterWildcardPath] + ); + + const baseSchematype = getPath(schema, baseFilterPath); + let filterBaseSchema = baseSchematype != null ? baseSchematype.schema : null; + if (filterBaseSchema != null && + filterBaseSchema.discriminators != null && + filter[filterWildcardPath + '.' + filterBaseSchema.options.discriminatorKey]) { + filterBaseSchema = filterBaseSchema.discriminators[filter[filterWildcardPath + '.' + filterBaseSchema.options.discriminatorKey]] || filterBaseSchema; + } + + for (const key of keys) { + if (updatedPathsByFilter[key] === null) { + continue; + } + if (Object.keys(updatedPathsByFilter).length === 0) { + continue; + } + const dot = key.indexOf('.'); + + let filterPathRelativeToBase = dot === -1 ? null : key.substring(dot); + let schematype; + if (filterPathRelativeToBase == null || filterBaseSchema == null) { + schematype = baseSchematype; + } else { + // If there are multiple array filters in the path being updated, make sure + // to replace them so we can get the schema path. + filterPathRelativeToBase = cleanPositionalOperators(filterPathRelativeToBase); + schematype = getPath(filterBaseSchema, filterPathRelativeToBase); + } + + if (schematype == null) { + if (!strictQuery) { + return; + } + const filterPath = filterPathRelativeToBase == null ? + baseFilterPath + '.0' : + baseFilterPath + '.0' + filterPathRelativeToBase; + // For now, treat `strictQuery = true` and `strictQuery = 'throw'` as + // equivalent for casting array filters. `strictQuery = true` doesn't + // quite work in this context because we never want to silently strip out + // array filters, even if the path isn't in the schema. + throw new Error(`Could not find path "${filterPath}" in schema`); + } + if (typeof filter[key] === 'object') { + filter[key] = castFilterPath(query, schematype, filter[key]); + } else { + filter[key] = schematype.castForQuery(null, filter[key]); + } + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/decorateUpdateWithVersionKey.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/decorateUpdateWithVersionKey.js new file mode 100644 index 000000000..161729844 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/decorateUpdateWithVersionKey.js @@ -0,0 +1,26 @@ +'use strict'; + +const modifiedPaths = require('./modifiedPaths'); + +/** + * Decorate the update with a version key, if necessary + * @api private + */ + +module.exports = function decorateUpdateWithVersionKey(update, options, versionKey) { + if (!versionKey || !(options && options.upsert || false)) { + return; + } + + const updatedPaths = modifiedPaths(update); + if (!updatedPaths[versionKey]) { + if (options.overwrite) { + update[versionKey] = 0; + } else { + if (!update.$setOnInsert) { + update.$setOnInsert = {}; + } + update.$setOnInsert[versionKey] = 0; + } + } +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/modifiedPaths.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/modifiedPaths.js new file mode 100644 index 000000000..9cb567d5a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/modifiedPaths.js @@ -0,0 +1,33 @@ +'use strict'; + +const _modifiedPaths = require('../common').modifiedPaths; + +/** + * Given an update document with potential update operators (`$set`, etc.) + * returns an object whose keys are the directly modified paths. + * + * If there are any top-level keys that don't start with `$`, we assume those + * will get wrapped in a `$set`. The Mongoose Query is responsible for wrapping + * top-level keys in `$set`. + * + * @param {Object} update + * @return {Object} modified + */ + +module.exports = function modifiedPaths(update) { + const keys = Object.keys(update); + const res = {}; + + const withoutDollarKeys = {}; + for (const key of keys) { + if (key.startsWith('$')) { + _modifiedPaths(update[key], '', res); + continue; + } + withoutDollarKeys[key] = update[key]; + } + + _modifiedPaths(withoutDollarKeys, '', res); + + return res; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/moveImmutableProperties.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/moveImmutableProperties.js new file mode 100644 index 000000000..81a62a82c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/moveImmutableProperties.js @@ -0,0 +1,53 @@ +'use strict'; + +const get = require('../get'); + +/** + * Given an update, move all $set on immutable properties to $setOnInsert. + * This should only be called for upserts, because $setOnInsert bypasses the + * strictness check for immutable properties. + */ + +module.exports = function moveImmutableProperties(schema, update, ctx) { + if (update == null) { + return; + } + + const keys = Object.keys(update); + for (const key of keys) { + const isDollarKey = key.startsWith('$'); + + if (key === '$set') { + const updatedPaths = Object.keys(update[key]); + for (const path of updatedPaths) { + _walkUpdatePath(schema, update[key], path, update, ctx); + } + } else if (!isDollarKey) { + _walkUpdatePath(schema, update, key, update, ctx); + } + + } +}; + +function _walkUpdatePath(schema, op, path, update, ctx) { + const schematype = schema.path(path); + if (schematype == null) { + return; + } + + let immutable = get(schematype, 'options.immutable', null); + if (immutable == null) { + return; + } + if (typeof immutable === 'function') { + immutable = immutable.call(ctx, ctx); + } + + if (!immutable) { + return; + } + + update.$setOnInsert = update.$setOnInsert || {}; + update.$setOnInsert[path] = op[path]; + delete op[path]; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/removeUnusedArrayFilters.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/removeUnusedArrayFilters.js new file mode 100644 index 000000000..22fa2483b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/removeUnusedArrayFilters.js @@ -0,0 +1,32 @@ +'use strict'; + +/** + * MongoDB throws an error if there's unused array filters. That is, if `options.arrayFilters` defines + * a filter, but none of the `update` keys use it. This should be enough to filter out all unused array + * filters. + */ + +module.exports = function removeUnusedArrayFilters(update, arrayFilters) { + const updateKeys = Object.keys(update). + map(key => Object.keys(update[key])). + reduce((cur, arr) => cur.concat(arr), []); + return arrayFilters.filter(obj => { + return _checkSingleFilterKey(obj, updateKeys); + }); +}; + +function _checkSingleFilterKey(arrayFilter, updateKeys) { + const firstKey = Object.keys(arrayFilter)[0]; + + if (firstKey === '$and' || firstKey === '$or') { + if (!Array.isArray(arrayFilter[firstKey])) { + return false; + } + return arrayFilter[firstKey].find(filter => _checkSingleFilterKey(filter, updateKeys)) != null; + } + + const firstDot = firstKey.indexOf('.'); + const arrayFilterKey = firstDot === -1 ? firstKey : firstKey.slice(0, firstDot); + + return updateKeys.find(key => key.includes('$[' + arrayFilterKey + ']')) != null; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/updatedPathsByArrayFilter.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/updatedPathsByArrayFilter.js new file mode 100644 index 000000000..fe7d3b689 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/update/updatedPathsByArrayFilter.js @@ -0,0 +1,27 @@ +'use strict'; + +const modifiedPaths = require('./modifiedPaths'); + +module.exports = function updatedPathsByArrayFilter(update) { + if (update == null) { + return {}; + } + const updatedPaths = modifiedPaths(update); + + return Object.keys(updatedPaths).reduce((cur, path) => { + const matches = path.match(/\$\[[^\]]+\]/g); + if (matches == null) { + return cur; + } + for (const match of matches) { + const firstMatch = path.indexOf(match); + if (firstMatch !== path.lastIndexOf(match)) { + throw new Error(`Path '${path}' contains the same array filter multiple times`); + } + cur[match.substring(2, match.length - 1)] = path. + substring(0, firstMatch - 1). + replace(/\$\[[^\]]+\]/g, '0'); + } + return cur; + }, {}); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/updateValidators.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/updateValidators.js new file mode 100644 index 000000000..176eff26e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/helpers/updateValidators.js @@ -0,0 +1,249 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const ValidationError = require('../error/validation'); +const cleanPositionalOperators = require('./schema/cleanPositionalOperators'); +const flatten = require('./common').flatten; +const modifiedPaths = require('./common').modifiedPaths; + +/** + * Applies validators and defaults to update and findOneAndUpdate operations, + * specifically passing a null doc as `this` to validators and defaults + * + * @param {Query} query + * @param {Schema} schema + * @param {Object} castedDoc + * @param {Object} options + * @method runValidatorsOnUpdate + * @api private + */ + +module.exports = function(query, schema, castedDoc, options, callback) { + const keys = Object.keys(castedDoc || {}); + let updatedKeys = {}; + let updatedValues = {}; + const isPull = {}; + const arrayAtomicUpdates = {}; + const numKeys = keys.length; + let hasDollarUpdate = false; + const modified = {}; + let currentUpdate; + let key; + let i; + + for (i = 0; i < numKeys; ++i) { + if (keys[i].startsWith('$')) { + hasDollarUpdate = true; + if (keys[i] === '$push' || keys[i] === '$addToSet') { + const _keys = Object.keys(castedDoc[keys[i]]); + for (let ii = 0; ii < _keys.length; ++ii) { + currentUpdate = castedDoc[keys[i]][_keys[ii]]; + if (currentUpdate && currentUpdate.$each) { + arrayAtomicUpdates[_keys[ii]] = (arrayAtomicUpdates[_keys[ii]] || []). + concat(currentUpdate.$each); + } else { + arrayAtomicUpdates[_keys[ii]] = (arrayAtomicUpdates[_keys[ii]] || []). + concat([currentUpdate]); + } + } + continue; + } + modifiedPaths(castedDoc[keys[i]], '', modified); + const flat = flatten(castedDoc[keys[i]], null, null, schema); + const paths = Object.keys(flat); + const numPaths = paths.length; + for (let j = 0; j < numPaths; ++j) { + const updatedPath = cleanPositionalOperators(paths[j]); + key = keys[i]; + // With `$pull` we might flatten `$in`. Skip stuff nested under `$in` + // for the rest of the logic, it will get handled later. + if (updatedPath.includes('$')) { + continue; + } + if (key === '$set' || key === '$setOnInsert' || + key === '$pull' || key === '$pullAll') { + updatedValues[updatedPath] = flat[paths[j]]; + isPull[updatedPath] = key === '$pull' || key === '$pullAll'; + } else if (key === '$unset') { + updatedValues[updatedPath] = undefined; + } + updatedKeys[updatedPath] = true; + } + } + } + + if (!hasDollarUpdate) { + modifiedPaths(castedDoc, '', modified); + updatedValues = flatten(castedDoc, null, null, schema); + updatedKeys = Object.keys(updatedValues); + } + + const updates = Object.keys(updatedValues); + const numUpdates = updates.length; + const validatorsToExecute = []; + const validationErrors = []; + + const alreadyValidated = []; + + const context = query; + function iter(i, v) { + const schemaPath = schema._getSchema(updates[i]); + if (schemaPath == null) { + return; + } + if (schemaPath.instance === 'Mixed' && schemaPath.path !== updates[i]) { + return; + } + + if (v && Array.isArray(v.$in)) { + v.$in.forEach((v, i) => { + validatorsToExecute.push(function(callback) { + schemaPath.doValidate( + v, + function(err) { + if (err) { + err.path = updates[i] + '.$in.' + i; + validationErrors.push(err); + } + callback(null); + }, + context, + { updateValidator: true }); + }); + }); + } else { + if (isPull[updates[i]] && + schemaPath.$isMongooseArray) { + return; + } + + if (schemaPath.$isMongooseDocumentArrayElement && v != null && v.$__ != null) { + alreadyValidated.push(updates[i]); + validatorsToExecute.push(function(callback) { + schemaPath.doValidate(v, function(err) { + if (err) { + if (err.errors) { + for (const key of Object.keys(err.errors)) { + const _err = err.errors[key]; + _err.path = updates[i] + '.' + key; + validationErrors.push(_err); + } + } else { + err.path = updates[i]; + validationErrors.push(err); + } + } + + return callback(null); + }, context, { updateValidator: true }); + }); + } else { + validatorsToExecute.push(function(callback) { + for (const path of alreadyValidated) { + if (updates[i].startsWith(path + '.')) { + return callback(null); + } + } + + schemaPath.doValidate(v, function(err) { + if (schemaPath.schema != null && + schemaPath.schema.options.storeSubdocValidationError === false && + err instanceof ValidationError) { + return callback(null); + } + + if (err) { + err.path = updates[i]; + validationErrors.push(err); + } + callback(null); + }, context, { updateValidator: true }); + }); + } + } + } + for (i = 0; i < numUpdates; ++i) { + iter(i, updatedValues[updates[i]]); + } + + const arrayUpdates = Object.keys(arrayAtomicUpdates); + for (const arrayUpdate of arrayUpdates) { + let schemaPath = schema._getSchema(arrayUpdate); + if (schemaPath && schemaPath.$isMongooseDocumentArray) { + validatorsToExecute.push(function(callback) { + schemaPath.doValidate( + arrayAtomicUpdates[arrayUpdate], + getValidationCallback(arrayUpdate, validationErrors, callback), + options && options.context === 'query' ? query : null); + }); + } else { + schemaPath = schema._getSchema(arrayUpdate + '.0'); + for (const atomicUpdate of arrayAtomicUpdates[arrayUpdate]) { + validatorsToExecute.push(function(callback) { + schemaPath.doValidate( + atomicUpdate, + getValidationCallback(arrayUpdate, validationErrors, callback), + options && options.context === 'query' ? query : null, + { updateValidator: true }); + }); + } + } + } + + if (callback != null) { + let numValidators = validatorsToExecute.length; + if (numValidators === 0) { + return _done(callback); + } + for (const validator of validatorsToExecute) { + validator(function() { + if (--numValidators <= 0) { + _done(callback); + } + }); + } + + return; + } + + return function(callback) { + let numValidators = validatorsToExecute.length; + if (numValidators === 0) { + return _done(callback); + } + for (const validator of validatorsToExecute) { + validator(function() { + if (--numValidators <= 0) { + _done(callback); + } + }); + } + }; + + function _done(callback) { + if (validationErrors.length) { + const err = new ValidationError(null); + + for (const validationError of validationErrors) { + err.addError(validationError.path, validationError); + } + + return callback(err); + } + callback(null); + } + + function getValidationCallback(arrayUpdate, validationErrors, callback) { + return function(err) { + if (err) { + err.path = arrayUpdate; + validationErrors.push(err); + } + callback(null); + }; + } +}; + diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/index.js new file mode 100644 index 000000000..67534e9e7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/index.js @@ -0,0 +1,17 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const mongodbDriver = require('./drivers/node-mongodb-native'); + +require('./driver').set(mongodbDriver); + +const mongoose = require('./mongoose'); + +mongoose.setDriver(mongodbDriver); + +mongoose.Mongoose.prototype.mongo = require('mongodb'); + +module.exports = mongoose; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/internal.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/internal.js new file mode 100644 index 000000000..8de1b2787 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/internal.js @@ -0,0 +1,46 @@ +/*! + * Dependencies + */ + +'use strict'; + +const StateMachine = require('./stateMachine'); +const ActiveRoster = StateMachine.ctor('require', 'modify', 'init', 'default', 'ignore'); + +module.exports = exports = InternalCache; + +function InternalCache() { + this.activePaths = new ActiveRoster(); +} + +InternalCache.prototype.strictMode = true; + +InternalCache.prototype.fullPath = undefined; +InternalCache.prototype.selected = undefined; +InternalCache.prototype.shardval = undefined; +InternalCache.prototype.saveError = undefined; +InternalCache.prototype.validationError = undefined; +InternalCache.prototype.adhocPaths = undefined; +InternalCache.prototype.removing = undefined; +InternalCache.prototype.inserting = undefined; +InternalCache.prototype.saving = undefined; +InternalCache.prototype.version = undefined; +InternalCache.prototype._id = undefined; +InternalCache.prototype.ownerDocument = undefined; +InternalCache.prototype.populate = undefined; // what we want to populate in this doc +InternalCache.prototype.populated = undefined;// the _ids that have been populated +InternalCache.prototype.primitiveAtomics = undefined; + +/** + * If `false`, this document was not the result of population. + * If `true`, this document is a populated doc underneath another doc + * If an object, this document is a populated doc and the `value` property of the + * object contains the original depopulated value. + */ +InternalCache.prototype.wasPopulated = false; + +InternalCache.prototype.scope = undefined; + +InternalCache.prototype.session = null; +InternalCache.prototype.pathsToScopes = null; +InternalCache.prototype.cachedRequired = null; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/model.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/model.js new file mode 100644 index 000000000..a94e3caff --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/model.js @@ -0,0 +1,5172 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const Aggregate = require('./aggregate'); +const ChangeStream = require('./cursor/changeStream'); +const Document = require('./document'); +const DocumentNotFoundError = require('./error/notFound'); +const DivergentArrayError = require('./error/divergentArray'); +const EventEmitter = require('events').EventEmitter; +const Kareem = require('kareem'); +const MongooseBuffer = require('./types/buffer'); +const MongooseError = require('./error/index'); +const ObjectParameterError = require('./error/objectParameter'); +const OverwriteModelError = require('./error/overwriteModel'); +const Query = require('./query'); +const SaveOptions = require('./options/saveOptions'); +const Schema = require('./schema'); +const ValidationError = require('./error/validation'); +const VersionError = require('./error/version'); +const ParallelSaveError = require('./error/parallelSave'); +const applyDefaultsHelper = require('./helpers/document/applyDefaults'); +const applyDefaultsToPOJO = require('./helpers/model/applyDefaultsToPOJO'); +const applyEmbeddedDiscriminators = require('./helpers/discriminator/applyEmbeddedDiscriminators'); +const applyHooks = require('./helpers/model/applyHooks'); +const applyMethods = require('./helpers/model/applyMethods'); +const applyProjection = require('./helpers/projection/applyProjection'); +const applyReadConcern = require('./helpers/schema/applyReadConcern'); +const applySchemaCollation = require('./helpers/indexes/applySchemaCollation'); +const applyStaticHooks = require('./helpers/model/applyStaticHooks'); +const applyStatics = require('./helpers/model/applyStatics'); +const applyWriteConcern = require('./helpers/schema/applyWriteConcern'); +const assignVals = require('./helpers/populate/assignVals'); +const castBulkWrite = require('./helpers/model/castBulkWrite'); +const clone = require('./helpers/clone'); +const createPopulateQueryFilter = require('./helpers/populate/createPopulateQueryFilter'); +const decorateUpdateWithVersionKey = require('./helpers/update/decorateUpdateWithVersionKey'); +const getDefaultBulkwriteResult = require('./helpers/getDefaultBulkwriteResult'); +const getSchemaDiscriminatorByValue = require('./helpers/discriminator/getSchemaDiscriminatorByValue'); +const discriminator = require('./helpers/model/discriminator'); +const firstKey = require('./helpers/firstKey'); +const each = require('./helpers/each'); +const get = require('./helpers/get'); +const getConstructorName = require('./helpers/getConstructorName'); +const getDiscriminatorByValue = require('./helpers/discriminator/getDiscriminatorByValue'); +const getModelsMapForPopulate = require('./helpers/populate/getModelsMapForPopulate'); +const immediate = require('./helpers/immediate'); +const internalToObjectOptions = require('./options').internalToObjectOptions; +const isDefaultIdIndex = require('./helpers/indexes/isDefaultIdIndex'); +const isIndexEqual = require('./helpers/indexes/isIndexEqual'); +const { + getRelatedDBIndexes, + getRelatedSchemaIndexes +} = require('./helpers/indexes/getRelatedIndexes'); +const isPathExcluded = require('./helpers/projection/isPathExcluded'); +const decorateDiscriminatorIndexOptions = require('./helpers/indexes/decorateDiscriminatorIndexOptions'); +const isPathSelectedInclusive = require('./helpers/projection/isPathSelectedInclusive'); +const leanPopulateMap = require('./helpers/populate/leanPopulateMap'); +const parallelLimit = require('./helpers/parallelLimit'); +const parentPaths = require('./helpers/path/parentPaths'); +const prepareDiscriminatorPipeline = require('./helpers/aggregate/prepareDiscriminatorPipeline'); +const pushNestedArrayPaths = require('./helpers/model/pushNestedArrayPaths'); +const removeDeselectedForeignField = require('./helpers/populate/removeDeselectedForeignField'); +const setDottedPath = require('./helpers/path/setDottedPath'); +const STATES = require('./connectionState'); +const util = require('util'); +const utils = require('./utils'); +const MongooseBulkWriteError = require('./error/bulkWriteError'); +const minimize = require('./helpers/minimize'); + +const VERSION_WHERE = 1; +const VERSION_INC = 2; +const VERSION_ALL = VERSION_WHERE | VERSION_INC; + +const arrayAtomicsSymbol = require('./helpers/symbols').arrayAtomicsSymbol; +const modelCollectionSymbol = Symbol('mongoose#Model#collection'); +const modelDbSymbol = Symbol('mongoose#Model#db'); +const modelSymbol = require('./helpers/symbols').modelSymbol; +const subclassedSymbol = Symbol('mongoose#Model#subclassed'); + +const saveToObjectOptions = Object.assign({}, internalToObjectOptions, { + bson: true, + flattenObjectIds: false +}); + +/** + * A Model is a class that's your primary tool for interacting with MongoDB. + * An instance of a Model is called a [Document](https://mongoosejs.com/docs/api/document.html#Document). + * + * In Mongoose, the term "Model" refers to subclasses of the `mongoose.Model` + * class. You should not use the `mongoose.Model` class directly. The + * [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()) and + * [`connection.model()`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.model()) functions + * create subclasses of `mongoose.Model` as shown below. + * + * #### Example: + * + * // `UserModel` is a "Model", a subclass of `mongoose.Model`. + * const UserModel = mongoose.model('User', new Schema({ name: String })); + * + * // You can use a Model to create new documents using `new`: + * const userDoc = new UserModel({ name: 'Foo' }); + * await userDoc.save(); + * + * // You also use a model to create queries: + * const userFromDb = await UserModel.findOne({ name: 'Foo' }); + * + * @param {Object} doc values for initial set + * @param {Object} [fields] optional object containing the fields that were selected in the query which returned this document. You do **not** need to set this parameter to ensure Mongoose handles your [query projection](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()). + * @param {Boolean} [skipId=false] optional boolean. If true, mongoose doesn't add an `_id` field to the document. + * @inherits Document https://mongoosejs.com/docs/api/document.html + * @event `error`: If listening to this event, 'error' is emitted when a document was saved and an `error` occurred. If not listening, the event bubbles to the connection used to create this Model. + * @event `index`: Emitted after `Model#ensureIndexes` completes. If an error occurred it is passed with the event. + * @event `index-single-start`: Emitted when an individual index starts within `Model#ensureIndexes`. The fields and options being used to build the index are also passed with the event. + * @event `index-single-done`: Emitted when an individual index finishes within `Model#ensureIndexes`. If an error occurred it is passed with the event. The fields, options, and index name are also passed. + * @api public + */ + +function Model(doc, fields, skipId) { + if (fields instanceof Schema) { + throw new TypeError('2nd argument to `Model` constructor must be a POJO or string, ' + + '**not** a schema. Make sure you\'re calling `mongoose.model()`, not ' + + '`mongoose.Model()`.'); + } + if (typeof doc === 'string') { + throw new TypeError('First argument to `Model` constructor must be an object, ' + + '**not** a string. Make sure you\'re calling `mongoose.model()`, not ' + + '`mongoose.Model()`.'); + } + Document.call(this, doc, fields, skipId); +} + +/** + * Inherits from Document. + * + * All Model.prototype features are available on + * top level (non-sub) documents. + * @api private + */ + +Object.setPrototypeOf(Model.prototype, Document.prototype); +Model.prototype.$isMongooseModelPrototype = true; + +/** + * Connection the model uses. + * + * @api public + * @property db + * @memberOf Model + * @instance + */ + +Model.prototype.db; + +/** + * The collection instance this model uses. + * A Mongoose collection is a thin wrapper around a [MongoDB Node.js driver collection]([MongoDB Node.js driver collection](https://mongodb.github.io/node-mongodb-native/Next/classes/Collection.html)). + * Using `Model.collection` means you bypass Mongoose middleware, validation, and casting. + * + * This property is read-only. Modifying this property is a no-op. + * + * @api public + * @property collection + * @memberOf Model + * @instance + */ + +Model.prototype.collection; + +/** + * Internal collection the model uses. + * + * This property is read-only. Modifying this property is a no-op. + * + * @api private + * @property collection + * @memberOf Model + * @instance + */ + + +Model.prototype.$__collection; + +/** + * The name of the model + * + * @api public + * @property modelName + * @memberOf Model + * @instance + */ + +Model.prototype.modelName; + +/** + * Additional properties to attach to the query when calling `save()` and + * `isNew` is false. + * + * @api public + * @property $where + * @memberOf Model + * @instance + */ + +Model.prototype.$where; + +/** + * If this is a discriminator model, `baseModelName` is the name of + * the base model. + * + * @api public + * @property baseModelName + * @memberOf Model + * @instance + */ + +Model.prototype.baseModelName; + +/** + * Event emitter that reports any errors that occurred. Useful for global error + * handling. + * + * #### Example: + * + * MyModel.events.on('error', err => console.log(err.message)); + * + * // Prints a 'CastError' because of the above handler + * await MyModel.findOne({ _id: 'Not a valid ObjectId' }).catch(noop); + * + * @api public + * @property events + * @fires error whenever any query or model function errors + * @memberOf Model + * @static + */ + +Model.events; + +/** + * Compiled middleware for this model. Set in `applyHooks()`. + * + * @api private + * @property _middleware + * @memberOf Model + * @static + */ + +Model._middleware; + +/*! + * ignore + */ + +function _applyCustomWhere(doc, where) { + if (doc.$where == null) { + return; + } + for (const key of Object.keys(doc.$where)) { + where[key] = doc.$where[key]; + } +} + +/*! + * ignore + */ + +Model.prototype.$__handleSave = function(options, callback) { + const saveOptions = {}; + + applyWriteConcern(this.$__schema, options); + if (typeof options.writeConcern !== 'undefined') { + saveOptions.writeConcern = {}; + if ('w' in options.writeConcern) { + saveOptions.writeConcern.w = options.writeConcern.w; + } + if ('j' in options.writeConcern) { + saveOptions.writeConcern.j = options.writeConcern.j; + } + if ('wtimeout' in options.writeConcern) { + saveOptions.writeConcern.wtimeout = options.writeConcern.wtimeout; + } + } else { + if ('w' in options) { + saveOptions.w = options.w; + } + if ('j' in options) { + saveOptions.j = options.j; + } + if ('wtimeout' in options) { + saveOptions.wtimeout = options.wtimeout; + } + } + if ('checkKeys' in options) { + saveOptions.checkKeys = options.checkKeys; + } + + const session = this.$session(); + const asyncLocalStorage = this[modelDbSymbol].base.transactionAsyncLocalStorage?.getStore(); + if (!saveOptions.hasOwnProperty('session') && session != null) { + saveOptions.session = session; + } else if (asyncLocalStorage?.session != null) { + saveOptions.session = asyncLocalStorage.session; + } + if (this.$isNew) { + // send entire doc + const obj = this.toObject(saveToObjectOptions); + if ((obj || {})._id === void 0) { + // documents must have an _id else mongoose won't know + // what to update later if more changes are made. the user + // wouldn't know what _id was generated by mongodb either + // nor would the ObjectId generated by mongodb necessarily + // match the schema definition. + immediate(function() { + callback(new MongooseError('document must have an _id before saving')); + }); + return; + } + + this.$__version(true, obj); + this[modelCollectionSymbol].insertOne(obj, saveOptions).then( + ret => callback(null, ret), + err => { + _setIsNew(this, true); + + callback(err, null); + } + ); + + this.$__reset(); + _setIsNew(this, false); + // Make it possible to retry the insert + this.$__.inserting = true; + return; + } + + // Make sure we don't treat it as a new object on error, + // since it already exists + this.$__.inserting = false; + const delta = this.$__delta(); + + if (options.pathsToSave) { + for (const key in delta[1]['$set']) { + if (options.pathsToSave.includes(key)) { + continue; + } else if (options.pathsToSave.some(pathToSave => key.slice(0, pathToSave.length) === pathToSave && key.charAt(pathToSave.length) === '.')) { + continue; + } else { + delete delta[1]['$set'][key]; + } + } + } + if (delta) { + if (delta instanceof MongooseError) { + callback(delta); + return; + } + + const where = this.$__where(delta[0]); + if (where instanceof MongooseError) { + callback(where); + return; + } + + _applyCustomWhere(this, where); + + const update = delta[1]; + if (this.$__schema.options.minimize) { + for (const updateOp of Object.values(update)) { + if (updateOp == null) { + continue; + } + for (const key of Object.keys(updateOp)) { + if (updateOp[key] == null || typeof updateOp[key] !== 'object') { + continue; + } + if (!utils.isPOJO(updateOp[key])) { + continue; + } + minimize(updateOp[key]); + if (Object.keys(updateOp[key]).length === 0) { + delete updateOp[key]; + update.$unset = update.$unset || {}; + update.$unset[key] = 1; + } + } + } + } + + this[modelCollectionSymbol].updateOne(where, update, saveOptions).then( + ret => { + ret.$where = where; + callback(null, ret); + }, + err => { + this.$__undoReset(); + + callback(err); + } + ); + } else { + handleEmptyUpdate.call(this); + return; + } + + // store the modified paths before the document is reset + this.$__.modifiedPaths = this.modifiedPaths(); + this.$__reset(); + + _setIsNew(this, false); + + function handleEmptyUpdate() { + const optionsWithCustomValues = Object.assign({}, options, saveOptions); + const where = this.$__where(); + const optimisticConcurrency = this.$__schema.options.optimisticConcurrency; + if (optimisticConcurrency && !Array.isArray(optimisticConcurrency)) { + const key = this.$__schema.options.versionKey; + const val = this.$__getValue(key); + if (val != null) { + where[key] = val; + } + } + + applyReadConcern(this.$__schema, optionsWithCustomValues); + this.constructor.collection.findOne(where, optionsWithCustomValues) + .then(documentExists => { + const matchedCount = !documentExists ? 0 : 1; + callback(null, { $where: where, matchedCount }); + }) + .catch(callback); + } +}; + +/*! + * ignore + */ + +Model.prototype.$__save = function(options, callback) { + this.$__handleSave(options, (error, result) => { + if (error) { + const hooks = this.$__schema.s.hooks; + return hooks.execPost('save:error', this, [this], { error: error }, (error) => { + callback(error, this); + }); + } + let numAffected = 0; + const writeConcern = options != null ? + options.writeConcern != null ? + options.writeConcern.w : + options.w : + 0; + if (writeConcern !== 0) { + // Skip checking if write succeeded if writeConcern is set to + // unacknowledged writes, because otherwise `numAffected` will always be 0 + if (result != null) { + if (Array.isArray(result)) { + numAffected = result.length; + } else if (result.matchedCount != null) { + numAffected = result.matchedCount; + } else { + numAffected = result; + } + } + + const versionBump = this.$__.version; + // was this an update that required a version bump? + if (versionBump && !this.$__.inserting) { + const doIncrement = VERSION_INC === (VERSION_INC & this.$__.version); + this.$__.version = undefined; + const key = this.$__schema.options.versionKey; + const version = this.$__getValue(key) || 0; + if (numAffected <= 0) { + // the update failed. pass an error back + this.$__undoReset(); + const err = this.$__.$versionError || + new VersionError(this, version, this.$__.modifiedPaths); + return callback(err); + } + + // increment version if was successful + if (doIncrement) { + this.$__setValue(key, version + 1); + } + } + if (result != null && numAffected <= 0) { + this.$__undoReset(); + error = new DocumentNotFoundError(result.$where, + this.constructor.modelName, numAffected, result); + const hooks = this.$__schema.s.hooks; + return hooks.execPost('save:error', this, [this], { error: error }, (error) => { + callback(error, this); + }); + } + } + this.$__.saving = undefined; + this.$__.savedState = {}; + this.$emit('save', this, numAffected); + this.constructor.emit('save', this, numAffected); + callback(null, this); + }); +}; + +/*! + * ignore + */ + +function generateVersionError(doc, modifiedPaths) { + const key = doc.$__schema.options.versionKey; + if (!key) { + return null; + } + const version = doc.$__getValue(key) || 0; + return new VersionError(doc, version, modifiedPaths); +} + +/** + * Saves this document by inserting a new document into the database if [document.isNew](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew) is `true`, + * or sends an [updateOne](https://mongoosejs.com/docs/api/document.html#Document.prototype.updateOne()) operation with just the modified paths if `isNew` is `false`. + * + * #### Example: + * + * product.sold = Date.now(); + * product = await product.save(); + * + * If save is successful, the returned promise will fulfill with the document + * saved. + * + * #### Example: + * + * const newProduct = await product.save(); + * newProduct === product; // true + * + * @param {Object} [options] options optional options + * @param {Session} [options.session=null] the [session](https://www.mongodb.com/docs/manual/reference/server-sessions/) associated with this save operation. If not specified, defaults to the [document's associated session](https://mongoosejs.com/docs/api/document.html#Document.prototype.session()). + * @param {Object} [options.safe] (DEPRECATED) overrides [schema's safe option](https://mongoosejs.com/docs/guide.html#safe). Use the `w` option instead. + * @param {Boolean} [options.validateBeforeSave] set to false to save without validating. + * @param {Boolean} [options.validateModifiedOnly=false] if `true`, Mongoose will only validate modified paths, as opposed to modified paths and `required` paths. + * @param {Number|String} [options.w] set the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#w-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.j] set to true for MongoDB to wait until this `save()` has been [journaled before resolving the returned promise](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Number} [options.wtimeout] sets a [timeout for the write concern](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout). Overrides the [schema-level `writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern). + * @param {Boolean} [options.checkKeys=true] the MongoDB driver prevents you from saving keys that start with '$' or contain '.' by default. Set this option to `false` to skip that check. See [restrictions on field names](https://docs.mongodb.com/manual/reference/limits/#mongodb-limit-Restrictions-on-Field-Names) + * @param {Boolean} [options.timestamps=true] if `false` and [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this `save()`. + * @param {Array} [options.pathsToSave] An array of paths that tell mongoose to only validate and save the paths in `pathsToSave`. + * @throws {DocumentNotFoundError} if this [save updates an existing document](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew) but the document doesn't exist in the database. For example, you will get this error if the document is [deleted between when you retrieved the document and when you saved it](documents.html#updating). + * @return {Promise} + * @api public + * @see middleware https://mongoosejs.com/docs/middleware.html + */ + +Model.prototype.save = async function save(options) { + if (typeof options === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.prototype.save() no longer accepts a callback'); + } + + let parallelSave; + this.$op = 'save'; + + if (this.$__.saving) { + parallelSave = new ParallelSaveError(this); + } else { + this.$__.saving = new ParallelSaveError(this); + } + + options = new SaveOptions(options); + if (options.hasOwnProperty('session')) { + this.$session(options.session); + } + if (this.$__.timestamps != null) { + options.timestamps = this.$__.timestamps; + } + this.$__.$versionError = generateVersionError(this, this.modifiedPaths()); + + if (parallelSave) { + this.$__handleReject(parallelSave); + throw parallelSave; + } + + this.$__.saveOptions = options; + + await new Promise((resolve, reject) => { + this.$__save(options, error => { + this.$__.saving = null; + this.$__.saveOptions = null; + this.$__.$versionError = null; + this.$op = null; + if (error != null) { + this.$__handleReject(error); + return reject(error); + } + + resolve(); + }); + }); + + return this; +}; + +Model.prototype.$save = Model.prototype.save; + +/** + * Determines whether versioning should be skipped for the given path + * + * @param {Document} self + * @param {String} path + * @return {Boolean} true if versioning should be skipped for the given path + * @api private + */ +function shouldSkipVersioning(self, path) { + const skipVersioning = self.$__schema.options.skipVersioning; + if (!skipVersioning) return false; + + // Remove any array indexes from the path + path = path.replace(/\.\d+\./, '.'); + + return skipVersioning[path]; +} + +/** + * Apply the operation to the delta (update) clause as + * well as track versioning for our where clause. + * + * @param {Document} self + * @param {Object} where Unused + * @param {Object} delta + * @param {Object} data + * @param {Mixed} val + * @param {String} [op] + * @api private + */ + +function operand(self, where, delta, data, val, op) { + // delta + op || (op = '$set'); + if (!delta[op]) delta[op] = {}; + delta[op][data.path] = val; + // disabled versioning? + if (self.$__schema.options.versionKey === false) return; + + // path excluded from versioning? + if (shouldSkipVersioning(self, data.path)) return; + + // already marked for versioning? + if (VERSION_ALL === (VERSION_ALL & self.$__.version)) return; + + if (self.$__schema.options.optimisticConcurrency) { + return; + } + + switch (op) { + case '$set': + case '$unset': + case '$pop': + case '$pull': + case '$pullAll': + case '$push': + case '$addToSet': + case '$inc': + break; + default: + // nothing to do + return; + } + + // ensure updates sent with positional notation are + // editing the correct array element. + // only increment the version if an array position changes. + // modifying elements of an array is ok if position does not change. + if (op === '$push' || op === '$addToSet' || op === '$pullAll' || op === '$pull') { + if (/\.\d+\.|\.\d+$/.test(data.path)) { + increment.call(self); + } else { + self.$__.version = VERSION_INC; + } + } else if (/^\$p/.test(op)) { + // potentially changing array positions + increment.call(self); + } else if (Array.isArray(val)) { + // $set an array + increment.call(self); + } else if (/\.\d+\.|\.\d+$/.test(data.path)) { + // now handling $set, $unset + // subpath of array + self.$__.version = VERSION_WHERE; + } +} + +/** + * Compiles an update and where clause for a `val` with _atomics. + * + * @param {Document} self + * @param {Object} where + * @param {Object} delta + * @param {Object} data + * @param {Array} value + * @api private + */ + +function handleAtomics(self, where, delta, data, value) { + if (delta.$set && delta.$set[data.path]) { + // $set has precedence over other atomics + return; + } + + if (typeof value.$__getAtomics === 'function') { + value.$__getAtomics().forEach(function(atomic) { + const op = atomic[0]; + const val = atomic[1]; + operand(self, where, delta, data, val, op); + }); + return; + } + + // legacy support for plugins + + const atomics = value[arrayAtomicsSymbol]; + const ops = Object.keys(atomics); + let i = ops.length; + let val; + let op; + + if (i === 0) { + // $set + + if (utils.isMongooseObject(value)) { + value = value.toObject({ depopulate: 1, _isNested: true }); + } else if (value.valueOf) { + value = value.valueOf(); + } + + return operand(self, where, delta, data, value); + } + + function iter(mem) { + return utils.isMongooseObject(mem) + ? mem.toObject({ depopulate: 1, _isNested: true }) + : mem; + } + + while (i--) { + op = ops[i]; + val = atomics[op]; + + if (utils.isMongooseObject(val)) { + val = val.toObject({ depopulate: true, transform: false, _isNested: true }); + } else if (Array.isArray(val)) { + val = val.map(iter); + } else if (val.valueOf) { + val = val.valueOf(); + } + + if (op === '$addToSet') { + val = { $each: val }; + } + + operand(self, where, delta, data, val, op); + } +} + +/** + * Produces a special query document of the modified properties used in updates. + * + * @api private + * @method $__delta + * @memberOf Model + * @instance + */ + +Model.prototype.$__delta = function() { + const dirty = this.$__dirty(); + const optimisticConcurrency = this.$__schema.options.optimisticConcurrency; + if (optimisticConcurrency) { + if (Array.isArray(optimisticConcurrency)) { + const optCon = new Set(optimisticConcurrency); + const modPaths = this.modifiedPaths(); + if (modPaths.find(path => optCon.has(path))) { + this.$__.version = dirty.length ? VERSION_ALL : VERSION_WHERE; + } + } else { + this.$__.version = dirty.length ? VERSION_ALL : VERSION_WHERE; + } + } + + if (!dirty.length && VERSION_ALL !== this.$__.version) { + return; + } + const where = {}; + const delta = {}; + const len = dirty.length; + const divergent = []; + let d = 0; + + where._id = this._doc._id; + // If `_id` is an object, need to depopulate, but also need to be careful + // because `_id` can technically be null (see gh-6406) + if ((where && where._id && where._id.$__ || null) != null) { + where._id = where._id.toObject({ transform: false, depopulate: true }); + } + for (; d < len; ++d) { + const data = dirty[d]; + let value = data.value; + const match = checkDivergentArray(this, data.path, value); + if (match) { + divergent.push(match); + continue; + } + + const pop = this.$populated(data.path, true); + if (!pop && this.$__.selected) { + // If any array was selected using an $elemMatch projection, we alter the path and where clause + // NOTE: MongoDB only supports projected $elemMatch on top level array. + const pathSplit = data.path.split('.'); + const top = pathSplit[0]; + if (this.$__.selected[top] && this.$__.selected[top].$elemMatch) { + // If the selected array entry was modified + if (pathSplit.length > 1 && pathSplit[1] == 0 && typeof where[top] === 'undefined') { + where[top] = this.$__.selected[top]; + pathSplit[1] = '$'; + data.path = pathSplit.join('.'); + } + // if the selected array was modified in any other way throw an error + else { + divergent.push(data.path); + continue; + } + } + } + + // If this path is set to default, and either this path or one of + // its parents is excluded, don't treat this path as dirty. + if (this.$isDefault(data.path) && this.$__.selected) { + if (data.path.indexOf('.') === -1 && isPathExcluded(this.$__.selected, data.path)) { + continue; + } + + const pathsToCheck = parentPaths(data.path); + if (pathsToCheck.find(path => isPathExcluded(this.$__.isSelected, path))) { + continue; + } + } + + if (divergent.length) continue; + if (value === undefined) { + operand(this, where, delta, data, 1, '$unset'); + } else if (value === null) { + operand(this, where, delta, data, null); + } else if (utils.isMongooseArray(value) && value.$path() && value[arrayAtomicsSymbol]) { + // arrays and other custom types (support plugins etc) + handleAtomics(this, where, delta, data, value); + } else if (value[MongooseBuffer.pathSymbol] && Buffer.isBuffer(value)) { + // MongooseBuffer + value = value.toObject(); + operand(this, where, delta, data, value); + } else { + if (this.$__.primitiveAtomics && this.$__.primitiveAtomics[data.path] != null) { + const val = this.$__.primitiveAtomics[data.path]; + const op = firstKey(val); + operand(this, where, delta, data, val[op], op); + } else { + value = clone(value, { + depopulate: true, + transform: false, + virtuals: false, + getters: false, + omitUndefined: true, + _isNested: true + }); + operand(this, where, delta, data, value); + } + } + } + + if (divergent.length) { + return new DivergentArrayError(divergent); + } + + if (this.$__.version) { + this.$__version(where, delta); + } + + if (Object.keys(delta).length === 0) { + return [where, null]; + } + + return [where, delta]; +}; + +/** + * Determine if array was populated with some form of filter and is now + * being updated in a manner which could overwrite data unintentionally. + * + * @see https://github.com/Automattic/mongoose/issues/1334 + * @param {Document} doc + * @param {String} path + * @param {Any} array + * @return {String|undefined} + * @api private + */ + +function checkDivergentArray(doc, path, array) { + // see if we populated this path + const pop = doc.$populated(path, true); + + if (!pop && doc.$__.selected) { + // If any array was selected using an $elemMatch projection, we deny the update. + // NOTE: MongoDB only supports projected $elemMatch on top level array. + const top = path.split('.')[0]; + if (doc.$__.selected[top + '.$']) { + return top; + } + } + + if (!(pop && utils.isMongooseArray(array))) return; + + // If the array was populated using options that prevented all + // documents from being returned (match, skip, limit) or they + // deselected the _id field, $pop and $set of the array are + // not safe operations. If _id was deselected, we do not know + // how to remove elements. $pop will pop off the _id from the end + // of the array in the db which is not guaranteed to be the + // same as the last element we have here. $set of the entire array + // would be similarly destructive as we never received all + // elements of the array and potentially would overwrite data. + const check = pop.options.match || + pop.options.options && utils.object.hasOwnProperty(pop.options.options, 'limit') || // 0 is not permitted + pop.options.options && pop.options.options.skip || // 0 is permitted + pop.options.select && // deselected _id? + (pop.options.select._id === 0 || + /\s?-_id\s?/.test(pop.options.select)); + + if (check) { + const atomics = array[arrayAtomicsSymbol]; + if (Object.keys(atomics).length === 0 || atomics.$set || atomics.$pop) { + return path; + } + } +} + +/** + * Appends versioning to the where and update clauses. + * + * @api private + * @method $__version + * @memberOf Model + * @instance + */ + +Model.prototype.$__version = function(where, delta) { + const key = this.$__schema.options.versionKey; + if (where === true) { + // this is an insert + if (key) { + setDottedPath(delta, key, 0); + this.$__setValue(key, 0); + } + return; + } + + if (key === false) { + return; + } + + // updates + + // only apply versioning if our versionKey was selected. else + // there is no way to select the correct version. we could fail + // fast here and force them to include the versionKey but + // thats a bit intrusive. can we do this automatically? + + if (!this.$__isSelected(key)) { + return; + } + + // $push $addToSet don't need the where clause set + if (VERSION_WHERE === (VERSION_WHERE & this.$__.version)) { + const value = this.$__getValue(key); + if (value != null) where[key] = value; + } + + if (VERSION_INC === (VERSION_INC & this.$__.version)) { + if (get(delta.$set, key, null) != null) { + // Version key is getting set, means we'll increment the doc's version + // after a successful save, so we should set the incremented version so + // future saves don't fail (gh-5779) + ++delta.$set[key]; + } else { + delta.$inc = delta.$inc || {}; + delta.$inc[key] = 1; + } + } +}; + +/*! + * ignore + */ + +function increment() { + this.$__.version = VERSION_ALL; + return this; +} + +/** + * Signal that we desire an increment of this documents version. + * + * #### Example: + * + * const doc = await Model.findById(id); + * doc.increment(); + * await doc.save(); + * + * @see versionKeys https://mongoosejs.com/docs/guide.html#versionKey + * @memberOf Model + * @method increment + * @api public + */ + +Model.prototype.increment = increment; + +/** + * Returns a query object + * + * @api private + * @method $__where + * @memberOf Model + * @instance + */ + +Model.prototype.$__where = function _where(where) { + where || (where = {}); + + if (!where._id) { + where._id = this._doc._id; + } + + if (this._doc._id === void 0) { + return new MongooseError('No _id found on document!'); + } + + return where; +}; + +/** + * Delete this document from the db. + * + * #### Example: + * + * await product.deleteOne(); + * await Product.findById(product._id); // null + * + * @return {Query} Query + * @api public + */ + +Model.prototype.deleteOne = function deleteOne(options) { + if (typeof options === 'function' || + typeof arguments[1] === 'function') { + throw new MongooseError('Model.prototype.deleteOne() no longer accepts a callback'); + } + + if (!options) { + options = {}; + } + + if (options.hasOwnProperty('session')) { + this.$session(options.session); + } + + const self = this; + const where = this.$__where(); + if (where instanceof Error) { + throw where; + } + const query = self.constructor.deleteOne(where, options); + + if (this.$session() != null) { + if (!('session' in query.options)) { + query.options.session = this.$session(); + } + } + + query.pre(function queryPreDeleteOne(cb) { + self.constructor._middleware.execPre('deleteOne', self, [self], cb); + }); + query.pre(function callSubdocPreHooks(cb) { + each(self.$getAllSubdocs(), (subdoc, cb) => { + subdoc.constructor._middleware.execPre('deleteOne', subdoc, [subdoc], cb); + }, cb); + }); + query.pre(function skipIfAlreadyDeleted(cb) { + if (self.$__.isDeleted) { + return cb(Kareem.skipWrappedFunction()); + } + return cb(); + }); + query.post(function callSubdocPostHooks(cb) { + each(self.$getAllSubdocs(), (subdoc, cb) => { + subdoc.constructor._middleware.execPost('deleteOne', subdoc, [subdoc], {}, cb); + }, cb); + }); + query.post(function queryPostDeleteOne(cb) { + self.constructor._middleware.execPost('deleteOne', self, [self], {}, cb); + }); + + return query; +}; + +/** + * Returns the model instance used to create this document if no `name` specified. + * If `name` specified, returns the model with the given `name`. + * + * #### Example: + * + * const doc = new Tank({}); + * doc.$model() === Tank; // true + * await doc.$model('User').findById(id); + * + * @param {String} [name] model name + * @method $model + * @api public + * @return {Model} + */ + +Model.prototype.$model = function $model(name) { + if (arguments.length === 0) { + return this.constructor; + } + return this[modelDbSymbol].model(name); +}; + +/** + * Returns the model instance used to create this document if no `name` specified. + * If `name` specified, returns the model with the given `name`. + * + * #### Example: + * + * const doc = new Tank({}); + * doc.$model() === Tank; // true + * await doc.$model('User').findById(id); + * + * @param {String} [name] model name + * @method model + * @api public + * @return {Model} + */ + +Model.prototype.model = Model.prototype.$model; + +/** + * Returns a document with `_id` only if at least one document exists in the database that matches + * the given `filter`, and `null` otherwise. + * + * Under the hood, `MyModel.exists({ answer: 42 })` is equivalent to + * `MyModel.findOne({ answer: 42 }).select({ _id: 1 }).lean()` + * + * #### Example: + * + * await Character.deleteMany({}); + * await Character.create({ name: 'Jean-Luc Picard' }); + * + * await Character.exists({ name: /picard/i }); // { _id: ... } + * await Character.exists({ name: /riker/i }); // null + * + * This function triggers the following middleware. + * + * - `findOne()` + * + * @param {Object} filter + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @return {Query} + */ + +Model.exists = function exists(filter, options) { + _checkContext(this, 'exists'); + if (typeof arguments[2] === 'function') { + throw new MongooseError('Model.exists() no longer accepts a callback'); + } + + const query = this.findOne(filter). + select({ _id: 1 }). + lean(). + setOptions(options); + + return query; +}; + +/** + * Adds a discriminator type. + * + * #### Example: + * + * function BaseSchema() { + * Schema.apply(this, arguments); + * + * this.add({ + * name: String, + * createdAt: Date + * }); + * } + * util.inherits(BaseSchema, Schema); + * + * const PersonSchema = new BaseSchema(); + * const BossSchema = new BaseSchema({ department: String }); + * + * const Person = mongoose.model('Person', PersonSchema); + * const Boss = Person.discriminator('Boss', BossSchema); + * new Boss().__t; // "Boss". `__t` is the default `discriminatorKey` + * + * const employeeSchema = new Schema({ boss: ObjectId }); + * const Employee = Person.discriminator('Employee', employeeSchema, 'staff'); + * new Employee().__t; // "staff" because of 3rd argument above + * + * @param {String} name discriminator model name + * @param {Schema} schema discriminator model schema + * @param {Object|String} [options] If string, same as `options.value`. + * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter. + * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning. + * @param {Boolean} [options.overwriteModels=false] by default, Mongoose does not allow you to define a discriminator with the same name as another discriminator. Set this to allow overwriting discriminators with the same name. + * @param {Boolean} [options.mergeHooks=true] By default, Mongoose merges the base schema's hooks with the discriminator schema's hooks. Set this option to `false` to make Mongoose use the discriminator schema's hooks instead. + * @param {Boolean} [options.mergePlugins=true] By default, Mongoose merges the base schema's plugins with the discriminator schema's plugins. Set this option to `false` to make Mongoose use the discriminator schema's plugins instead. + * @return {Model} The newly created discriminator model + * @api public + */ + +Model.discriminator = function(name, schema, options) { + let model; + if (typeof name === 'function') { + model = name; + name = utils.getFunctionName(model); + if (!(model.prototype instanceof Model)) { + throw new MongooseError('The provided class ' + name + ' must extend Model'); + } + } + + options = options || {}; + const value = utils.isPOJO(options) ? options.value : options; + const clone = typeof options.clone === 'boolean' ? options.clone : true; + const mergePlugins = typeof options.mergePlugins === 'boolean' ? options.mergePlugins : true; + const overwriteModels = typeof options.overwriteModels === 'boolean' ? options.overwriteModels : false; + + _checkContext(this, 'discriminator'); + + if (utils.isObject(schema) && !schema.instanceOfSchema) { + schema = new Schema(schema); + } + if (schema instanceof Schema && clone) { + schema = schema.clone(); + } + + schema = discriminator(this, name, schema, value, mergePlugins, options.mergeHooks, overwriteModels); + if (this.db.models[name] && !schema.options.overwriteModels && !overwriteModels) { + throw new OverwriteModelError(name); + } + + schema.$isRootDiscriminator = true; + schema.$globalPluginsApplied = true; + + model = this.db.model(model || name, schema, this.$__collection.name); + this.discriminators[name] = model; + const d = this.discriminators[name]; + Object.setPrototypeOf(d.prototype, this.prototype); + Object.defineProperty(d, 'baseModelName', { + value: this.modelName, + configurable: true, + writable: false + }); + + // apply methods and statics + applyMethods(d, schema); + applyStatics(d, schema); + + if (this[subclassedSymbol] != null) { + for (const submodel of this[subclassedSymbol]) { + submodel.discriminators = submodel.discriminators || {}; + submodel.discriminators[name] = + model.__subclass(model.db, schema, submodel.collection.name); + } + } + + return d; +}; + +/** + * Make sure `this` is a model + * @api private + */ + +function _checkContext(ctx, fnName) { + // Check context, because it is easy to mistakenly type + // `new Model.discriminator()` and get an incomprehensible error + if (ctx == null || ctx === global) { + throw new MongooseError('`Model.' + fnName + '()` cannot run without a ' + + 'model as `this`. Make sure you are calling `MyModel.' + fnName + '()` ' + + 'where `MyModel` is a Mongoose model.'); + } else if (ctx[modelSymbol] == null) { + throw new MongooseError('`Model.' + fnName + '()` cannot run without a ' + + 'model as `this`. Make sure you are not calling ' + + '`new Model.' + fnName + '()`'); + } +} + +// Model (class) features + +/*! + * Give the constructor the ability to emit events. + */ + +for (const i in EventEmitter.prototype) { + Model[i] = EventEmitter.prototype[i]; +} + +/** + * This function is responsible for initializing the underlying connection in MongoDB based on schema options. + * This function performs the following operations: + * + * - `createCollection()` unless [`autoCreate`](https://mongoosejs.com/docs/guide.html#autoCreate) option is turned off + * - `ensureIndexes()` unless [`autoIndex`](https://mongoosejs.com/docs/guide.html#autoIndex) option is turned off + * - `createSearchIndex()` on all schema search indexes if `autoSearchIndex` is enabled. + * + * Mongoose calls this function automatically when a model is a created using + * [`mongoose.model()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()) or + * [`connection.model()`](https://mongoosejs.com/docs/api/connection.html#Connection.prototype.model()), so you + * don't need to call `init()` to trigger index builds. + * + * However, you _may_ need to call `init()` to get back a promise that will resolve when your indexes are finished. + * Calling `await Model.init()` is helpful if you need to wait for indexes to build before continuing. + * For example, if you want to wait for unique indexes to build before continuing with a test case. + * + * #### Example: + * + * const eventSchema = new Schema({ thing: { type: 'string', unique: true } }) + * // This calls `Event.init()` implicitly, so you don't need to call + * // `Event.init()` on your own. + * const Event = mongoose.model('Event', eventSchema); + * + * await Event.init(); + * console.log('Indexes are done building!'); + * + * @api public + * @returns {Promise} + */ + +Model.init = function init() { + _checkContext(this, 'init'); + if (typeof arguments[0] === 'function') { + throw new MongooseError('Model.init() no longer accepts a callback'); + } + + this.schema.emit('init', this); + + if (this.$init != null) { + return this.$init; + } + + const conn = this.db; + const _ensureIndexes = async() => { + const autoIndex = utils.getOption( + 'autoIndex', + this.schema.options, + conn.config, + conn.base.options + ); + if (!autoIndex) { + return; + } + return await this.ensureIndexes({ _automatic: true }); + }; + const _createSearchIndexes = async() => { + const autoSearchIndex = utils.getOption( + 'autoSearchIndex', + this.schema.options, + conn.config, + conn.base.options + ); + if (!autoSearchIndex) { + return; + } + + const results = []; + for (const searchIndex of this.schema._searchIndexes) { + results.push(await this.createSearchIndex(searchIndex)); + } + return results; + }; + const _createCollection = async() => { + if ((conn.readyState === STATES.connecting || conn.readyState === STATES.disconnected) && conn._shouldBufferCommands()) { + await new Promise(resolve => { + conn._queue.push({ fn: resolve }); + }); + } + const autoCreate = utils.getOption( + 'autoCreate', + this.schema.options, + conn.config, + conn.base.options + ); + if (!autoCreate) { + return; + } + return await this.createCollection(); + }; + + this.$init = _createCollection(). + then(() => _ensureIndexes()). + then(() => _createSearchIndexes()); + + const _catch = this.$init.catch; + const _this = this; + this.$init.catch = function() { + _this.$caught = true; + return _catch.apply(_this.$init, arguments); + }; + + return this.$init; +}; + + +/** + * Create the collection for this model. By default, if no indexes are specified, + * mongoose will not create the collection for the model until any documents are + * created. Use this method to create the collection explicitly. + * + * Note 1: You may need to call this before starting a transaction + * See https://www.mongodb.com/docs/manual/core/transactions/#transactions-and-operations + * + * Note 2: You don't have to call this if your schema contains index or unique field. + * In that case, just use `Model.init()` + * + * #### Example: + * + * const userSchema = new Schema({ name: String }) + * const User = mongoose.model('User', userSchema); + * + * User.createCollection().then(function(collection) { + * console.log('Collection is created!'); + * }); + * + * @api public + * @param {Object} [options] see [MongoDB driver docs](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createCollection) + * @returns {Promise} + */ + +Model.createCollection = async function createCollection(options) { + _checkContext(this, 'createCollection'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.createCollection() no longer accepts a callback'); + } + + const shouldSkip = await new Promise((resolve, reject) => { + this.hooks.execPre('createCollection', this, [options], (err) => { + if (err != null) { + if (err instanceof Kareem.skipWrappedFunction) { + return resolve(true); + } + return reject(err); + } + resolve(); + }); + }); + + const collectionOptions = this && + this.schema && + this.schema.options && + this.schema.options.collectionOptions; + if (collectionOptions != null) { + options = Object.assign({}, collectionOptions, options); + } + + const schemaCollation = this && + this.schema && + this.schema.options && + this.schema.options.collation; + if (schemaCollation != null) { + options = Object.assign({ collation: schemaCollation }, options); + } + const capped = this && + this.schema && + this.schema.options && + this.schema.options.capped; + if (capped != null) { + if (typeof capped === 'number') { + options = Object.assign({ capped: true, size: capped }, options); + } else if (typeof capped === 'object') { + options = Object.assign({ capped: true }, capped, options); + } + } + const timeseries = this && + this.schema && + this.schema.options && + this.schema.options.timeseries; + if (timeseries != null) { + options = Object.assign({ timeseries }, options); + if (options.expireAfterSeconds != null) { + // do nothing + } else if (options.expires != null) { + utils.expires(options); + } else if (this.schema.options.expireAfterSeconds != null) { + options.expireAfterSeconds = this.schema.options.expireAfterSeconds; + } else if (this.schema.options.expires != null) { + options.expires = this.schema.options.expires; + utils.expires(options); + } + } + + const clusteredIndex = this && + this.schema && + this.schema.options && + this.schema.options.clusteredIndex; + if (clusteredIndex != null) { + options = Object.assign({ clusteredIndex: { ...clusteredIndex, unique: true } }, options); + } + + try { + if (!shouldSkip) { + await this.db.createCollection(this.$__collection.collectionName, options); + } + } catch (err) { + if (err != null && (err.name !== 'MongoServerError' || err.code !== 48)) { + await new Promise((resolve, reject) => { + const _opts = { error: err }; + this.hooks.execPost('createCollection', this, [null], _opts, (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); + } + } + + await new Promise((resolve, reject) => { + this.hooks.execPost('createCollection', this, [this.$__collection], (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); + + return this.$__collection; +}; + +/** + * Makes the indexes in MongoDB match the indexes defined in this model's + * schema. This function will drop any indexes that are not defined in + * the model's schema except the `_id` index, and build any indexes that + * are in your schema but not in MongoDB. + * + * See the [introductory blog post](https://thecodebarbarian.com/whats-new-in-mongoose-5-2-syncindexes) + * for more information. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, unique: true } }); + * const Customer = mongoose.model('Customer', schema); + * await Customer.collection.createIndex({ age: 1 }); // Index is not in schema + * // Will drop the 'age' index and create an index on `name` + * await Customer.syncIndexes(); + * + * You should be careful about running `syncIndexes()` on production applications under heavy load, + * because index builds are expensive operations, and unexpected index drops can lead to degraded + * performance. Before running `syncIndexes()`, you can use the [`diffIndexes()` function](#Model.diffIndexes()) + * to check what indexes `syncIndexes()` will drop and create. + * + * #### Example: + * + * const { toDrop, toCreate } = await Model.diffIndexes(); + * toDrop; // Array of strings containing names of indexes that `syncIndexes()` will drop + * toCreate; // Array of strings containing names of indexes that `syncIndexes()` will create + * + * @param {Object} [options] options to pass to `ensureIndexes()` + * @param {Boolean} [options.background=null] if specified, overrides each index's `background` property + * @return {Promise} + * @api public + */ + +Model.syncIndexes = async function syncIndexes(options) { + _checkContext(this, 'syncIndexes'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.syncIndexes() no longer accepts a callback'); + } + + const model = this; + + try { + await model.createCollection(); + } catch (err) { + if (err != null && (err.name !== 'MongoServerError' || err.code !== 48)) { + throw err; + } + } + + const diffIndexesResult = await model.diffIndexes(); + const dropped = await model.cleanIndexes({ ...options, toDrop: diffIndexesResult.toDrop }); + await model.createIndexes({ ...options, toCreate: diffIndexesResult.toCreate }); + + return dropped; +}; + +/** + * Create an [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/). + * This function only works when connected to MongoDB Atlas. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, unique: true } }); + * const Customer = mongoose.model('Customer', schema); + * await Customer.createSearchIndex({ name: 'test', definition: { mappings: { dynamic: true } } }); + * + * @param {Object} description index options, including `name` and `definition` + * @param {String} description.name + * @param {Object} description.definition + * @return {Promise} + * @api public + */ + +Model.createSearchIndex = async function createSearchIndex(description) { + _checkContext(this, 'createSearchIndex'); + + return await this.$__collection.createSearchIndex(description); +}; + +/** + * Update an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/). + * This function only works when connected to MongoDB Atlas. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, unique: true } }); + * const Customer = mongoose.model('Customer', schema); + * await Customer.updateSearchIndex('test', { mappings: { dynamic: true } }); + * + * @param {String} name + * @param {Object} definition + * @return {Promise} + * @api public + */ + +Model.updateSearchIndex = async function updateSearchIndex(name, definition) { + _checkContext(this, 'updateSearchIndex'); + + return await this.$__collection.updateSearchIndex(name, definition); +}; + +/** + * Delete an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) by name. + * This function only works when connected to MongoDB Atlas. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, unique: true } }); + * const Customer = mongoose.model('Customer', schema); + * await Customer.dropSearchIndex('test'); + * + * @param {String} name + * @return {Promise} + * @api public + */ + +Model.dropSearchIndex = async function dropSearchIndex(name) { + _checkContext(this, 'dropSearchIndex'); + + return await this.$__collection.dropSearchIndex(name); +}; + +/** + * List all [Atlas search indexes](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) on this model's collection. + * This function only works when connected to MongoDB Atlas. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, unique: true } }); + * const Customer = mongoose.model('Customer', schema); + * + * await Customer.createSearchIndex({ name: 'test', definition: { mappings: { dynamic: true } } }); + * const res = await Customer.listSearchIndexes(); // Includes `[{ name: 'test' }]` + * + * @param {Object} [options] + * @return {Promise} + * @api public + */ + +Model.listSearchIndexes = async function listSearchIndexes(options) { + _checkContext(this, 'listSearchIndexes'); + + const cursor = await this.$__collection.listSearchIndexes(options); + + return await cursor.toArray(); +}; + +/** + * Does a dry-run of `Model.syncIndexes()`, returning the indexes that `syncIndexes()` would drop and create if you were to run `syncIndexes()`. + * + * #### Example: + * + * const { toDrop, toCreate } = await Model.diffIndexes(); + * toDrop; // Array of strings containing names of indexes that `syncIndexes()` will drop + * toCreate; // Array of strings containing names of indexes that `syncIndexes()` will create + * + * @param {Object} [options] + * @return {Promise} contains the indexes that would be dropped in MongoDB and indexes that would be created in MongoDB as `{ toDrop: string[], toCreate: string[] }`. + */ + +Model.diffIndexes = async function diffIndexes() { + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.syncIndexes() no longer accepts a callback'); + } + + const model = this; + + let dbIndexes = await model.listIndexes().catch(err => { + if (err.codeName == 'NamespaceNotFound') { + return undefined; + } + throw err; + }); + if (dbIndexes === undefined) { + dbIndexes = []; + } + dbIndexes = getRelatedDBIndexes(model, dbIndexes); + + const schema = model.schema; + const schemaIndexes = getRelatedSchemaIndexes(model, schema.indexes()); + + const toDrop = getIndexesToDrop(schema, schemaIndexes, dbIndexes); + const toCreate = getIndexesToCreate(schema, schemaIndexes, dbIndexes, toDrop); + + return { toDrop, toCreate }; +}; + +function getIndexesToCreate(schema, schemaIndexes, dbIndexes, toDrop) { + const toCreate = []; + + for (const [schemaIndexKeysObject, schemaIndexOptions] of schemaIndexes) { + let found = false; + + const options = decorateDiscriminatorIndexOptions(schema, clone(schemaIndexOptions)); + + for (const index of dbIndexes) { + if (isDefaultIdIndex(index)) { + continue; + } + if ( + isIndexEqual(schemaIndexKeysObject, options, index) && + !toDrop.includes(index.name) + ) { + found = true; + break; + } + } + + if (!found) { + toCreate.push(schemaIndexKeysObject); + } + } + + return toCreate; +} + +function getIndexesToDrop(schema, schemaIndexes, dbIndexes) { + const toDrop = []; + + for (const dbIndex of dbIndexes) { + let found = false; + // Never try to drop `_id` index, MongoDB server doesn't allow it + if (isDefaultIdIndex(dbIndex)) { + continue; + } + + for (const [schemaIndexKeysObject, schemaIndexOptions] of schemaIndexes) { + const options = decorateDiscriminatorIndexOptions(schema, clone(schemaIndexOptions)); + applySchemaCollation(schemaIndexKeysObject, options, schema.options); + + if (isIndexEqual(schemaIndexKeysObject, options, dbIndex)) { + found = true; + break; + } + } + + if (!found) { + toDrop.push(dbIndex.name); + } + } + + return toDrop; +} +/** + * Deletes all indexes that aren't defined in this model's schema. Used by + * `syncIndexes()`. + * + * The returned promise resolves to a list of the dropped indexes' names as an array + * + * @param {Function} [callback] optional callback + * @return {Promise|undefined} Returns `undefined` if callback is specified, returns a promise if no callback. + * @api public + */ + +Model.cleanIndexes = async function cleanIndexes(options) { + _checkContext(this, 'cleanIndexes'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.cleanIndexes() no longer accepts a callback'); + } + const model = this; + + const collection = model.$__collection; + + if (Array.isArray(options && options.toDrop)) { + const res = await _dropIndexes(options.toDrop, collection); + return res; + } + + const res = await model.diffIndexes(); + return await _dropIndexes(res.toDrop, collection); +}; + +async function _dropIndexes(toDrop, collection) { + if (toDrop.length === 0) { + return []; + } + + await Promise.all(toDrop.map(indexName => collection.dropIndex(indexName))); + return toDrop; +} + +/** + * Lists the indexes currently defined in MongoDB. This may or may not be + * the same as the indexes defined in your schema depending on whether you + * use the [`autoIndex` option](https://mongoosejs.com/docs/guide.html#autoIndex) and if you + * build indexes manually. + * + * @return {Promise} + * @api public + */ + +Model.listIndexes = async function listIndexes() { + _checkContext(this, 'listIndexes'); + if (typeof arguments[0] === 'function') { + throw new MongooseError('Model.listIndexes() no longer accepts a callback'); + } + + if (this.$__collection.buffer) { + await new Promise(resolve => { + this.$__collection.addQueue(resolve); + }); + } + + return this.$__collection.listIndexes().toArray(); +}; + +/** + * Sends `createIndex` commands to mongo for each index declared in the schema. + * The `createIndex` commands are sent in series. + * + * #### Example: + * + * await Event.ensureIndexes(); + * + * After completion, an `index` event is emitted on this `Model` passing an error if one occurred. + * + * #### Example: + * + * const eventSchema = new Schema({ thing: { type: 'string', unique: true } }) + * const Event = mongoose.model('Event', eventSchema); + * + * Event.on('index', function (err) { + * if (err) console.error(err); // error occurred during index creation + * }); + * + * _NOTE: It is not recommended that you run this in production. Index creation may impact database performance depending on your load. Use with caution._ + * + * @param {Object} [options] internal options + * @return {Promise} + * @api public + */ + +Model.ensureIndexes = async function ensureIndexes(options) { + _checkContext(this, 'ensureIndexes'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.ensureIndexes() no longer accepts a callback'); + } + + await new Promise((resolve, reject) => { + _ensureIndexes(this, options, (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); +}; + +/** + * Similar to `ensureIndexes()`, except for it uses the [`createIndex`](https://mongodb.github.io/node-mongodb-native/4.9/classes/Db.html#createIndex) + * function. + * + * @param {Object} [options] internal options + * @return {Promise} + * @api public + */ + +Model.createIndexes = async function createIndexes(options) { + _checkContext(this, 'createIndexes'); + + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.createIndexes() no longer accepts a callback'); + } + + return this.ensureIndexes(options); +}; + + +/*! + * ignore + */ + +function _ensureIndexes(model, options, callback) { + const indexes = model.schema.indexes(); + let indexError; + + options = options || {}; + const done = function(err) { + if (err && !model.$caught) { + model.emit('error', err); + } + model.emit('index', err || indexError); + callback && callback(err || indexError); + }; + + for (const index of indexes) { + if (isDefaultIdIndex(index)) { + utils.warn('mongoose: Cannot specify a custom index on `_id` for ' + + 'model name "' + model.modelName + '", ' + + 'MongoDB does not allow overwriting the default `_id` index. See ' + + 'https://bit.ly/mongodb-id-index'); + } + } + + if (!indexes.length) { + immediate(function() { + done(); + }); + return; + } + // Indexes are created one-by-one to support how MongoDB < 2.4 deals + // with background indexes. + + const indexSingleDone = function(err, fields, options, name) { + model.emit('index-single-done', err, fields, options, name); + }; + const indexSingleStart = function(fields, options) { + model.emit('index-single-start', fields, options); + }; + + const baseSchema = model.schema._baseSchema; + const baseSchemaIndexes = baseSchema ? baseSchema.indexes() : []; + + immediate(function() { + // If buffering is off, do this manually. + if (options._automatic && !model.collection.collection) { + model.collection.addQueue(create, []); + } else { + create(); + } + }); + + + function create() { + if (options._automatic) { + if (model.schema.options.autoIndex === false || + (model.schema.options.autoIndex == null && model.db.config.autoIndex === false)) { + return done(); + } + } + + const index = indexes.shift(); + if (!index) { + return done(); + } + if (options._automatic && index[1]._autoIndex === false) { + return create(); + } + + if (baseSchemaIndexes.find(i => utils.deepEqual(i, index))) { + return create(); + } + + const indexFields = clone(index[0]); + const indexOptions = clone(index[1]); + + delete indexOptions._autoIndex; + decorateDiscriminatorIndexOptions(model.schema, indexOptions); + applyWriteConcern(model.schema, indexOptions); + applySchemaCollation(indexFields, indexOptions, model.schema.options); + + indexSingleStart(indexFields, options); + + if ('background' in options) { + indexOptions.background = options.background; + } + + if ('toCreate' in options) { + if (options.toCreate.length === 0) { + return done(); + } + } + + model.collection.createIndex(indexFields, indexOptions).then( + name => { + indexSingleDone(null, indexFields, indexOptions, name); + create(); + }, + err => { + if (!indexError) { + indexError = err; + } + if (!model.$caught) { + model.emit('error', err); + } + + indexSingleDone(err, indexFields, indexOptions); + create(); + } + ); + } +} + +/** + * Schema the model uses. + * + * @property schema + * @static + * @api public + * @memberOf Model + */ + +Model.schema; + +/** + * Connection instance the model uses. + * + * @property db + * @static + * @api public + * @memberOf Model + */ + +Model.db; + +/** + * Collection the model uses. + * + * @property collection + * @api public + * @memberOf Model + */ + +Model.collection; + +/** + * Internal collection the model uses. + * + * @property collection + * @api private + * @memberOf Model + */ +Model.$__collection; + +/** + * Base Mongoose instance the model uses. + * + * @property base + * @api public + * @memberOf Model + */ + +Model.base; + +/** + * Registered discriminators for this model. + * + * @property discriminators + * @api public + * @memberOf Model + */ + +Model.discriminators; + +/** + * Translate any aliases fields/conditions so the final query or document object is pure + * + * #### Example: + * + * await Character.find(Character.translateAliases({ + * '名': 'Eddard Stark' // Alias for 'name' + * }); + * + * By default, `translateAliases()` overwrites raw fields with aliased fields. + * So if `n` is an alias for `name`, `{ n: 'alias', name: 'raw' }` will resolve to `{ name: 'alias' }`. + * However, you can set the `errorOnDuplicates` option to throw an error if there are potentially conflicting paths. + * The `translateAliases` option for queries uses `errorOnDuplicates`. + * + * #### Note: + * + * Only translate arguments of object type anything else is returned raw + * + * @param {Object} fields fields/conditions that may contain aliased keys + * @param {Boolean} [errorOnDuplicates] if true, throw an error if there's both a key and an alias for that key in `fields` + * @return {Object} the translated 'pure' fields/conditions + */ +Model.translateAliases = function translateAliases(fields, errorOnDuplicates) { + _checkContext(this, 'translateAliases'); + + const translate = (key, value) => { + let alias; + const translated = []; + const fieldKeys = key.split('.'); + let currentSchema = this.schema; + for (const i in fieldKeys) { + const name = fieldKeys[i]; + if (currentSchema && currentSchema.aliases[name]) { + alias = currentSchema.aliases[name]; + if (errorOnDuplicates && alias in fields) { + throw new MongooseError(`Provided object has both field "${name}" and its alias "${alias}"`); + } + // Alias found, + translated.push(alias); + } else { + alias = name; + // Alias not found, so treat as un-aliased key + translated.push(name); + } + + // Check if aliased path is a schema + if (currentSchema && currentSchema.paths[alias]) { + currentSchema = currentSchema.paths[alias].schema; + } + else + currentSchema = null; + } + + const translatedKey = translated.join('.'); + if (fields instanceof Map) + fields.set(translatedKey, value); + else + fields[translatedKey] = value; + + if (translatedKey !== key) { + // We'll be using the translated key instead + if (fields instanceof Map) { + // Delete from map + fields.delete(key); + } else { + // Delete from object + delete fields[key]; // We'll be using the translated key instead + } + } + return fields; + }; + + if (typeof fields === 'object') { + // Fields is an object (query conditions or document fields) + if (fields instanceof Map) { + // A Map was supplied + for (const field of new Map(fields)) { + fields = translate(field[0], field[1]); + } + } else { + // Infer a regular object was supplied + for (const key of Object.keys(fields)) { + fields = translate(key, fields[key]); + if (key[0] === '$') { + if (Array.isArray(fields[key])) { + for (const i in fields[key]) { + // Recursively translate nested queries + fields[key][i] = this.translateAliases(fields[key][i]); + } + } else { + this.translateAliases(fields[key]); + } + } + } + } + + return fields; + } else { + // Don't know typeof fields + return fields; + } +}; + +/** + * Deletes the first document that matches `conditions` from the collection. + * It returns an object with the property `deletedCount` indicating how many documents were deleted. + * Behaves like `remove()`, but deletes at most one document regardless of the + * `single` option. + * + * #### Example: + * + * await Character.deleteOne({ name: 'Eddard Stark' }); // returns {deletedCount: 1} + * + * #### Note: + * + * This function triggers `deleteOne` query hooks. Read the + * [middleware docs](https://mongoosejs.com/docs/middleware.html#naming) to learn more. + * + * @param {Object} conditions + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @api public + */ + +Model.deleteOne = function deleteOne(conditions, options) { + _checkContext(this, 'deleteOne'); + + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.prototype.deleteOne() no longer accepts a callback'); + } + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.setOptions(options); + + return mq.deleteOne(conditions); +}; + +/** + * Deletes all of the documents that match `conditions` from the collection. + * It returns an object with the property `deletedCount` containing the number of documents deleted. + * Behaves like `remove()`, but deletes all documents that match `conditions` + * regardless of the `single` option. + * + * #### Example: + * + * await Character.deleteMany({ name: /Stark/, age: { $gte: 18 } }); // returns {deletedCount: x} where x is the number of documents deleted. + * + * #### Note: + * + * This function triggers `deleteMany` query hooks. Read the + * [middleware docs](https://mongoosejs.com/docs/middleware.html#naming) to learn more. + * + * @param {Object} conditions + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @api public + */ + +Model.deleteMany = function deleteMany(conditions, options) { + _checkContext(this, 'deleteMany'); + + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.deleteMany() no longer accepts a callback'); + } + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.setOptions(options); + + return mq.deleteMany(conditions); +}; + +/** + * Finds documents. + * + * Mongoose casts the `filter` to match the model's schema before the command is sent. + * See our [query casting tutorial](https://mongoosejs.com/docs/tutorials/query_casting.html) for + * more information on how Mongoose casts `filter`. + * + * #### Example: + * + * // find all documents + * await MyModel.find({}); + * + * // find all documents named john and at least 18 + * await MyModel.find({ name: 'john', age: { $gte: 18 } }).exec(); + * + * // executes, name LIKE john and only selecting the "name" and "friends" fields + * await MyModel.find({ name: /john/i }, 'name friends').exec(); + * + * // passing options + * await MyModel.find({ name: /john/i }, null, { skip: 10 }).exec(); + * + * @param {Object|ObjectId} filter + * @param {Object|String|String[]} [projection] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @see field selection https://mongoosejs.com/docs/api/query.html#Query.prototype.select() + * @see query casting https://mongoosejs.com/docs/tutorials/query_casting.html + * @api public + */ + +Model.find = function find(conditions, projection, options) { + _checkContext(this, 'find'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') { + throw new MongooseError('Model.find() no longer accepts a callback'); + } + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.select(projection); + mq.setOptions(options); + + return mq.find(conditions); +}; + +/** + * Finds a single document by its _id field. `findById(id)` is almost* + * equivalent to `findOne({ _id: id })`. If you want to query by a document's + * `_id`, use `findById()` instead of `findOne()`. + * + * The `id` is cast based on the Schema before sending the command. + * + * This function triggers the following middleware. + * + * - `findOne()` + * + * \* Except for how it treats `undefined`. If you use `findOne()`, you'll see + * that `findOne(undefined)` and `findOne({ _id: undefined })` are equivalent + * to `findOne({})` and return arbitrary documents. However, mongoose + * translates `findById(undefined)` into `findOne({ _id: null })`. + * + * #### Example: + * + * // Find the adventure with the given `id`, or `null` if not found + * await Adventure.findById(id).exec(); + * + * // select only the adventures name and length + * await Adventure.findById(id, 'name length').exec(); + * + * @param {Any} id value of `_id` to query by + * @param {Object|String|String[]} [projection] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @return {Query} + * @see field selection https://mongoosejs.com/docs/api/query.html#Query.prototype.select() + * @see lean queries https://mongoosejs.com/docs/tutorials/lean.html + * @see findById in Mongoose https://masteringjs.io/tutorials/mongoose/find-by-id + * @api public + */ + +Model.findById = function findById(id, projection, options) { + _checkContext(this, 'findById'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.findById() no longer accepts a callback'); + } + + if (typeof id === 'undefined') { + id = null; + } + + return this.findOne({ _id: id }, projection, options); +}; + +/** + * Finds one document. + * + * The `conditions` are cast to their respective SchemaTypes before the command is sent. + * + * *Note:* `conditions` is optional, and if `conditions` is null or undefined, + * mongoose will send an empty `findOne` command to MongoDB, which will return + * an arbitrary document. If you're querying by `_id`, use `findById()` instead. + * + * #### Example: + * + * // Find one adventure whose `country` is 'Croatia', otherwise `null` + * await Adventure.findOne({ country: 'Croatia' }).exec(); + * + * // Model.findOne() no longer accepts a callback + * + * // Select only the adventures name and length + * await Adventure.findOne({ country: 'Croatia' }, 'name length').exec(); + * + * @param {Object} [conditions] + * @param {Object|String|String[]} [projection] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @see field selection https://mongoosejs.com/docs/api/query.html#Query.prototype.select() + * @see lean queries https://mongoosejs.com/docs/tutorials/lean.html + * @api public + */ + +Model.findOne = function findOne(conditions, projection, options) { + _checkContext(this, 'findOne'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.findOne() no longer accepts a callback'); + } + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.select(projection); + mq.setOptions(options); + + return mq.findOne(conditions); +}; + +/** + * Estimates the number of documents in the MongoDB collection. Faster than + * using `countDocuments()` for large collections because + * `estimatedDocumentCount()` uses collection metadata rather than scanning + * the entire collection. + * + * #### Example: + * + * const numAdventures = await Adventure.estimatedDocumentCount(); + * + * @param {Object} [options] + * @return {Query} + * @api public + */ + +Model.estimatedDocumentCount = function estimatedDocumentCount(options) { + _checkContext(this, 'estimatedDocumentCount'); + + const mq = new this.Query({}, {}, this, this.$__collection); + + return mq.estimatedDocumentCount(options); +}; + +/** + * Counts number of documents matching `filter` in a database collection. + * + * #### Example: + * + * Adventure.countDocuments({ type: 'jungle' }, function (err, count) { + * console.log('there are %d jungle adventures', count); + * }); + * + * If you want to count all documents in a large collection, + * use the [`estimatedDocumentCount()` function](https://mongoosejs.com/docs/api/model.html#Model.estimatedDocumentCount()) + * instead. If you call `countDocuments({})`, MongoDB will always execute + * a full collection scan and **not** use any indexes. + * + * The `countDocuments()` function is similar to `count()`, but there are a + * [few operators that `countDocuments()` does not support](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments). + * Below are the operators that `count()` supports but `countDocuments()` does not, + * and the suggested replacement: + * + * - `$where`: [`$expr`](https://www.mongodb.com/docs/manual/reference/operator/query/expr/) + * - `$near`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$center`](https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center) + * - `$nearSphere`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$centerSphere`](https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere) + * + * @param {Object} filter + * @return {Query} + * @api public + */ + +Model.countDocuments = function countDocuments(conditions, options) { + _checkContext(this, 'countDocuments'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.countDocuments() no longer accepts a callback'); + } + + const mq = new this.Query({}, {}, this, this.$__collection); + if (options != null) { + mq.setOptions(options); + } + + return mq.countDocuments(conditions); +}; + + +/** + * Creates a Query for a `distinct` operation. + * + * #### Example: + * + * const query = Link.distinct('url'); + * query.exec(); + * + * @param {String} field + * @param {Object} [conditions] optional + * @return {Query} + * @api public + */ + +Model.distinct = function distinct(field, conditions) { + _checkContext(this, 'distinct'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function') { + throw new MongooseError('Model.distinct() no longer accepts a callback'); + } + + const mq = new this.Query({}, {}, this, this.$__collection); + + return mq.distinct(field, conditions); +}; + +/** + * Creates a Query, applies the passed conditions, and returns the Query. + * + * For example, instead of writing: + * + * User.find({ age: { $gte: 21, $lte: 65 } }); + * + * we can instead write: + * + * User.where('age').gte(21).lte(65).exec(); + * + * Since the Query class also supports `where` you can continue chaining + * + * User + * .where('age').gte(21).lte(65) + * .where('name', /^b/i) + * ... etc + * + * @param {String} path + * @param {Object} [val] optional value + * @return {Query} + * @api public + */ + +Model.where = function where(path, val) { + _checkContext(this, 'where'); + + void val; // eslint + const mq = new this.Query({}, {}, this, this.$__collection).find({}); + return mq.where.apply(mq, arguments); +}; + +/** + * Creates a `Query` and specifies a `$where` condition. + * + * Sometimes you need to query for things in mongodb using a JavaScript expression. You can do so via `find({ $where: javascript })`, or you can use the mongoose shortcut method $where via a Query chain or from your mongoose Model. + * + * Blog.$where('this.username.indexOf("val") !== -1').exec(function (err, docs) {}); + * + * @param {String|Function} argument is a javascript string or anonymous function + * @method $where + * @memberOf Model + * @return {Query} + * @see Query.$where https://mongoosejs.com/docs/api/query.html#Query.prototype.$where + * @api public + */ + +Model.$where = function $where() { + _checkContext(this, '$where'); + + const mq = new this.Query({}, {}, this, this.$__collection).find({}); + return mq.$where.apply(mq, arguments); +}; + +/** + * Issues a mongodb findOneAndUpdate command. + * + * Finds a matching document, updates it according to the `update` arg, passing any `options`, and returns the found document (if any) to the callback. The query executes if `callback` is passed else a Query object is returned. + * + * #### Example: + * + * A.findOneAndUpdate(conditions, update, options) // returns Query + * A.findOneAndUpdate(conditions, update) // returns Query + * A.findOneAndUpdate() // returns Query + * + * #### Note: + * + * All top level update keys which are not `atomic` operation names are treated as set operations: + * + * #### Example: + * + * const query = { name: 'borne' }; + * Model.findOneAndUpdate(query, { name: 'jason bourne' }, options) + * + * // is sent as + * Model.findOneAndUpdate(query, { $set: { name: 'jason bourne' }}, options) + * + * #### Note: + * + * `findOneAndX` and `findByIdAndX` functions support limited validation that + * you can enable by setting the `runValidators` option. + * + * If you need full-fledged validation, use the traditional approach of first + * retrieving the document. + * + * const doc = await Model.findById(id); + * doc.name = 'jason bourne'; + * await doc.save(); + * + * @param {Object} [conditions] + * @param {Object} [update] + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {String} [options.returnDocument='before'] Has two possible values, `'before'` and `'after'`. By default, it will return the document before the update was applied. + * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html). + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object|String|String[]} [options.projection=null] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) + * @param {Boolean} [options.new=false] if true, return the modified document rather than the original + * @param {Object|String} [options.fields] Field selection. Equivalent to `.select(fields).findOneAndUpdate()` + * @param {Number} [options.maxTimeMS] puts a time limit on the query - requires mongodb >= 2.6.0 + * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update. + * @param {Boolean} [options.runValidators] if true, runs [update validators](https://mongoosejs.com/docs/validation.html#update-validators) on this command. Update validators validate the update operation against the model's schema + * @param {Boolean} [options.setDefaultsOnInsert=true] If `setDefaultsOnInsert` and `upsert` are true, mongoose will apply the [defaults](https://mongoosejs.com/docs/defaults.html) specified in the model's schema if a new document is created + * @param {Boolean} [options.includeResultMetadata] if true, returns the [raw result from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @return {Query} + * @see Tutorial https://mongoosejs.com/docs/tutorials/findoneandupdate.html + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/findAndModify/ + * @api public + */ + +Model.findOneAndUpdate = function(conditions, update, options) { + _checkContext(this, 'findOneAndUpdate'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') { + throw new MongooseError('Model.findOneAndUpdate() no longer accepts a callback'); + } + + if (arguments.length === 1) { + update = conditions; + conditions = null; + options = null; + } + + let fields; + if (options) { + fields = options.fields || options.projection; + } + + update = clone(update, { + depopulate: true, + _isNested: true + }); + + decorateUpdateWithVersionKey(update, options, this.schema.options.versionKey); + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.select(fields); + + return mq.findOneAndUpdate(conditions, update, options); +}; + +/** + * Issues a mongodb findOneAndUpdate command by a document's _id field. + * `findByIdAndUpdate(id, ...)` is equivalent to `findOneAndUpdate({ _id: id }, ...)`. + * + * Finds a matching document, updates it according to the `update` arg, + * passing any `options`, and returns the found document (if any). + * + * This function triggers the following middleware. + * + * - `findOneAndUpdate()` + * + * #### Example: + * + * A.findByIdAndUpdate(id, update, options) // returns Query + * A.findByIdAndUpdate(id, update) // returns Query + * A.findByIdAndUpdate() // returns Query + * + * #### Note: + * + * All top level update keys which are not `atomic` operation names are treated as set operations: + * + * #### Example: + * + * Model.findByIdAndUpdate(id, { name: 'jason bourne' }, options) + * + * // is sent as + * Model.findByIdAndUpdate(id, { $set: { name: 'jason bourne' }}, options) + * + * #### Note: + * + * `findOneAndX` and `findByIdAndX` functions support limited validation. You can + * enable validation by setting the `runValidators` option. + * + * If you need full-fledged validation, use the traditional approach of first + * retrieving the document. + * + * const doc = await Model.findById(id) + * doc.name = 'jason bourne'; + * await doc.save(); + * + * @param {Object|Number|String} id value of `_id` to query by + * @param {Object} [update] + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {String} [options.returnDocument='before'] Has two possible values, `'before'` and `'after'`. By default, it will return the document before the update was applied. + * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html). + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update. + * @param {Boolean} [options.runValidators] if true, runs [update validators](https://mongoosejs.com/docs/validation.html#update-validators) on this command. Update validators validate the update operation against the model's schema + * @param {Boolean} [options.setDefaultsOnInsert=true] If `setDefaultsOnInsert` and `upsert` are true, mongoose will apply the [defaults](https://mongoosejs.com/docs/defaults.html) specified in the model's schema if a new document is created + * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Boolean} [options.new=false] if true, return the modified document rather than the original + * @param {Object|String} [options.select] sets the document fields to return. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @return {Query} + * @see Model.findOneAndUpdate https://mongoosejs.com/docs/api/model.html#Model.findOneAndUpdate() + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/findAndModify/ + * @api public + */ + +Model.findByIdAndUpdate = function(id, update, options) { + _checkContext(this, 'findByIdAndUpdate'); + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') { + throw new MongooseError('Model.findByIdAndUpdate() no longer accepts a callback'); + } + + // if a model is passed in instead of an id + if (id instanceof Document) { + id = id._id; + } + + return this.findOneAndUpdate.call(this, { _id: id }, update, options); +}; + +/** + * Issue a MongoDB `findOneAndDelete()` command. + * + * Finds a matching document, removes it, and returns the found document (if any). + * + * This function triggers the following middleware. + * + * - `findOneAndDelete()` + * + * #### Example: + * + * A.findOneAndDelete(conditions, options) // return Query + * A.findOneAndDelete(conditions) // returns Query + * A.findOneAndDelete() // returns Query + * + * `findOneAndX` and `findByIdAndX` functions support limited validation. You can + * enable validation by setting the `runValidators` option. + * + * If you need full-fledged validation, use the traditional approach of first + * retrieving the document. + * + * const doc = await Model.findById(id) + * doc.name = 'jason bourne'; + * await doc.save(); + * + * @param {Object} conditions + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Object|String|String[]} [options.projection=null] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update. + * @param {Object|String} [options.select] sets the document fields to return. + * @param {Number} [options.maxTimeMS] puts a time limit on the query - requires mongodb >= 2.6.0 + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @api public + */ + +Model.findOneAndDelete = function(conditions, options) { + _checkContext(this, 'findOneAndDelete'); + + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.findOneAndDelete() no longer accepts a callback'); + } + + let fields; + if (options) { + fields = options.select; + options.select = undefined; + } + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.select(fields); + + return mq.findOneAndDelete(conditions, options); +}; + +/** + * Issue a MongoDB `findOneAndDelete()` command by a document's _id field. + * In other words, `findByIdAndDelete(id)` is a shorthand for + * `findOneAndDelete({ _id: id })`. + * + * This function triggers the following middleware. + * + * - `findOneAndDelete()` + * + * @param {Object|Number|String} id value of `_id` to query by + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @see Model.findOneAndDelete https://mongoosejs.com/docs/api/model.html#Model.findOneAndDelete() + * @see mongodb https://www.mongodb.com/docs/manual/reference/command/findAndModify/ + */ + +Model.findByIdAndDelete = function(id, options) { + _checkContext(this, 'findByIdAndDelete'); + + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.findByIdAndDelete() no longer accepts a callback'); + } + + return this.findOneAndDelete({ _id: id }, options); +}; + +/** + * Issue a MongoDB `findOneAndReplace()` command. + * + * Finds a matching document, replaces it with the provided doc, and returns the document. + * + * This function triggers the following query middleware. + * + * - `findOneAndReplace()` + * + * #### Example: + * + * A.findOneAndReplace(filter, replacement, options) // return Query + * A.findOneAndReplace(filter, replacement) // returns Query + * A.findOneAndReplace() // returns Query + * + * @param {Object} filter Replace the first document that matches this filter + * @param {Object} [replacement] Replace with this document + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {String} [options.returnDocument='before'] Has two possible values, `'before'` and `'after'`. By default, it will return the document before the update was applied. + * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html). + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Object|String|String[]} [options.projection=null] optional fields to return, see [`Query.prototype.select()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.select()) + * @param {Object|String} [options.sort] if multiple docs are found by the conditions, sets the sort order to choose which doc to update. + * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * @param {Object|String} [options.select] sets the document fields to return. + * @param {Number} [options.maxTimeMS] puts a time limit on the query - requires mongodb >= 2.6.0 + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @api public + */ + +Model.findOneAndReplace = function(filter, replacement, options) { + _checkContext(this, 'findOneAndReplace'); + + if (typeof arguments[0] === 'function' || typeof arguments[1] === 'function' || typeof arguments[2] === 'function' || typeof arguments[3] === 'function') { + throw new MongooseError('Model.findOneAndReplace() no longer accepts a callback'); + } + + let fields; + if (options) { + fields = options.select; + options.select = undefined; + } + + const mq = new this.Query({}, {}, this, this.$__collection); + mq.select(fields); + + return mq.findOneAndReplace(filter, replacement, options); +}; + +/** + * Shortcut for saving one or more documents to the database. + * `MyModel.create(docs)` does `new MyModel(doc).save()` for every doc in + * docs. + * + * This function triggers the following middleware. + * + * - `save()` + * + * #### Example: + * + * // Insert one new `Character` document + * await Character.create({ name: 'Jean-Luc Picard' }); + * + * // Insert multiple new `Character` documents + * await Character.create([{ name: 'Will Riker' }, { name: 'Geordi LaForge' }]); + * + * // Create a new character within a transaction. Note that you **must** + * // pass an array as the first parameter to `create()` if you want to + * // specify options. + * await Character.create([{ name: 'Jean-Luc Picard' }], { session }); + * + * @param {Array|Object} docs Documents to insert, as a spread or array + * @param {Object} [options] Options passed down to `save()`. To specify `options`, `docs` **must** be an array, not a spread. See [Model.save](https://mongoosejs.com/docs/api/model.html#Model.prototype.save()) for available options. + * @param {Boolean} [options.ordered] saves the docs in series rather than parallel. + * @param {Boolean} [options.aggregateErrors] Aggregate Errors instead of throwing the first one that occurs. Default: false + * @return {Promise} + * @api public + */ + +Model.create = async function create(doc, options) { + if (typeof options === 'function' || + typeof arguments[2] === 'function') { + throw new MongooseError('Model.create() no longer accepts a callback'); + } + + _checkContext(this, 'create'); + + let args; + const discriminatorKey = this.schema.options.discriminatorKey; + + if (Array.isArray(doc)) { + args = doc; + options = options != null && typeof options === 'object' ? options : {}; + } else { + const last = arguments[arguments.length - 1]; + options = {}; + const hasCallback = typeof last === 'function' || + typeof options === 'function' || + typeof arguments[2] === 'function'; + if (hasCallback) { + throw new MongooseError('Model.create() no longer accepts a callback'); + } else { + args = [...arguments]; + // For backwards compatibility with 6.x, because of gh-5061 Mongoose 6.x and + // older would treat a falsy last arg as a callback. We don't want to throw + // an error here, because it would look strange if `Test.create({}, void 0)` + // threw a callback error. But we also don't want to create an unnecessary document. + if (args.length > 1 && !last) { + args.pop(); + } + } + + if (args.length === 2 && + args[0] != null && + args[1] != null && + args[0].session == null && + last && + getConstructorName(last.session) === 'ClientSession' && + !this.schema.path('session')) { + // Probably means the user is running into the common mistake of trying + // to use a spread to specify options, see gh-7535 + utils.warn('WARNING: to pass a `session` to `Model.create()` in ' + + 'Mongoose, you **must** pass an array as the first argument. See: ' + + 'https://mongoosejs.com/docs/api/model.html#Model.create()'); + } + } + + if (args.length === 0) { + return Array.isArray(doc) ? [] : null; + } + let res = []; + const immediateError = typeof options.aggregateErrors === 'boolean' ? !options.aggregateErrors : true; + + delete options.aggregateErrors; // dont pass on the option to "$save" + + if (options.ordered) { + for (let i = 0; i < args.length; i++) { + try { + const doc = args[i]; + const Model = this.discriminators && doc[discriminatorKey] != null ? + this.discriminators[doc[discriminatorKey]] || getDiscriminatorByValue(this.discriminators, doc[discriminatorKey]) : + this; + if (Model == null) { + throw new MongooseError(`Discriminator "${doc[discriminatorKey]}" not ` + + `found for model "${this.modelName}"`); + } + let toSave = doc; + if (!(toSave instanceof Model)) { + toSave = new Model(toSave); + } + + await toSave.$save(options); + res.push(toSave); + } catch (err) { + if (!immediateError) { + res.push(err); + } else { + throw err; + } + } + } + return res; + } else if (!immediateError) { + res = await Promise.allSettled(args.map(async doc => { + const Model = this.discriminators && doc[discriminatorKey] != null ? + this.discriminators[doc[discriminatorKey]] || getDiscriminatorByValue(this.discriminators, doc[discriminatorKey]) : + this; + if (Model == null) { + throw new MongooseError(`Discriminator "${doc[discriminatorKey]}" not ` + + `found for model "${this.modelName}"`); + } + let toSave = doc; + + if (!(toSave instanceof Model)) { + toSave = new Model(toSave); + } + + await toSave.$save(options); + + return toSave; + })); + res = res.map(result => result.status === 'fulfilled' ? result.value : result.reason); + } else { + let firstError = null; + res = await Promise.all(args.map(async doc => { + const Model = this.discriminators && doc[discriminatorKey] != null ? + this.discriminators[doc[discriminatorKey]] || getDiscriminatorByValue(this.discriminators, doc[discriminatorKey]) : + this; + if (Model == null) { + throw new MongooseError(`Discriminator "${doc[discriminatorKey]}" not ` + + `found for model "${this.modelName}"`); + } + try { + let toSave = doc; + + if (!(toSave instanceof Model)) { + toSave = new Model(toSave); + } + + await toSave.$save(options); + + return toSave; + } catch (err) { + if (!firstError) { + firstError = err; + } + } + })); + if (firstError) { + throw firstError; + } + } + + + if (!Array.isArray(doc) && args.length === 1) { + return res[0]; + } + + return res; +}; + +/** + * _Requires a replica set running MongoDB >= 3.6.0._ Watches the + * underlying collection for changes using + * [MongoDB change streams](https://www.mongodb.com/docs/manual/changeStreams/). + * + * This function does **not** trigger any middleware. In particular, it + * does **not** trigger aggregate middleware. + * + * The ChangeStream object is an event emitter that emits the following events: + * + * - 'change': A change occurred, see below example + * - 'error': An unrecoverable error occurred. In particular, change streams currently error out if they lose connection to the replica set primary. Follow [this GitHub issue](https://github.com/Automattic/mongoose/issues/6799) for updates. + * - 'end': Emitted if the underlying stream is closed + * - 'close': Emitted if the underlying stream is closed + * + * #### Example: + * + * const doc = await Person.create({ name: 'Ned Stark' }); + * const changeStream = Person.watch().on('change', change => console.log(change)); + * // Will print from the above `console.log()`: + * // { _id: { _data: ... }, + * // operationType: 'delete', + * // ns: { db: 'mydb', coll: 'Person' }, + * // documentKey: { _id: 5a51b125c5500f5aa094c7bd } } + * await doc.remove(); + * + * @param {Array} [pipeline] + * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#watch) + * @param {Boolean} [options.hydrate=false] if true and `fullDocument: 'updateLookup'` is set, Mongoose will automatically hydrate `fullDocument` into a fully fledged Mongoose document + * @return {ChangeStream} mongoose-specific change stream wrapper, inherits from EventEmitter + * @api public + */ + +Model.watch = function(pipeline, options) { + _checkContext(this, 'watch'); + + const changeStreamThunk = cb => { + pipeline = pipeline || []; + prepareDiscriminatorPipeline(pipeline, this.schema, 'fullDocument'); + if (this.$__collection.buffer) { + this.$__collection.addQueue(() => { + if (this.closed) { + return; + } + const driverChangeStream = this.$__collection.watch(pipeline, options); + cb(null, driverChangeStream); + }); + } else { + const driverChangeStream = this.$__collection.watch(pipeline, options); + cb(null, driverChangeStream); + } + }; + + options = options || {}; + options.model = this; + + return new ChangeStream(changeStreamThunk, pipeline, options); +}; + +/** + * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions) + * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/), + * and [transactions](https://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html). + * + * Calling `MyModel.startSession()` is equivalent to calling `MyModel.db.startSession()`. + * + * This function does not trigger any middleware. + * + * #### Example: + * + * const session = await Person.startSession(); + * let doc = await Person.findOne({ name: 'Ned Stark' }, null, { session }); + * await doc.remove(); + * // `doc` will always be null, even if reading from a replica set + * // secondary. Without causal consistency, it is possible to + * // get a doc back from the below query if the query reads from a + * // secondary that is experiencing replication lag. + * doc = await Person.findOne({ name: 'Ned Stark' }, null, { session, readPreference: 'secondary' }); + * + * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#startSession) + * @param {Boolean} [options.causalConsistency=true] set to false to disable causal consistency + * @return {Promise} promise that resolves to a MongoDB driver `ClientSession` + * @api public + */ + +Model.startSession = function() { + _checkContext(this, 'startSession'); + + return this.db.startSession.apply(this.db, arguments); +}; + +/** + * Shortcut for validating an array of documents and inserting them into + * MongoDB if they're all valid. This function is faster than `.create()` + * because it only sends one operation to the server, rather than one for each + * document. + * + * Mongoose always validates each document **before** sending `insertMany` + * to MongoDB. So if one document has a validation error, no documents will + * be saved, unless you set + * [the `ordered` option to false](https://www.mongodb.com/docs/manual/reference/method/db.collection.insertMany/#error-handling). + * + * This function does **not** trigger save middleware. + * + * This function triggers the following middleware. + * + * - `insertMany()` + * + * #### Example: + * + * await Movies.insertMany([ + * { name: 'Star Wars' }, + * { name: 'The Empire Strikes Back' } + * ]); + * + * @param {Array|Object|*} doc(s) + * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#insertMany) + * @param {Boolean} [options.ordered=true] if true, will fail fast on the first error encountered. If false, will insert all the documents it can and report errors later. An `insertMany()` with `ordered = false` is called an "unordered" `insertMany()`. + * @param {Boolean} [options.rawResult=false] if false, the returned promise resolves to the documents that passed mongoose document validation. If `true`, will return the [raw result from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/InsertManyResult.html) with a `mongoose` property that contains `validationErrors` and `results` if this is an unordered `insertMany`. + * @param {Boolean} [options.lean=false] if `true`, skips hydrating the documents. This means Mongoose will **not** cast or validate any of the documents passed to `insertMany()`. This option is useful if you need the extra performance, but comes with data integrity risk. Consider using with [`castObject()`](https://mongoosejs.com/docs/api/model.html#Model.castObject()). + * @param {Number} [options.limit=null] this limits the number of documents being processed (validation/casting) by mongoose in parallel, this does **NOT** send the documents in batches to MongoDB. Use this option if you're processing a large number of documents and your app is running out of memory. + * @param {String|Object|Array} [options.populate=null] populates the result documents. This option is a no-op if `rawResult` is set. + * @param {Boolean} [options.throwOnValidationError=false] If true and `ordered: false`, throw an error if one of the operations failed validation, but all valid operations completed successfully. + * @return {Promise} resolving to the raw result from the MongoDB driver if `options.rawResult` was `true`, or the documents that passed validation, otherwise + * @api public + */ + +Model.insertMany = async function insertMany(arr, options) { + _checkContext(this, 'insertMany'); + if (typeof options === 'function' || + typeof arguments[2] === 'function') { + throw new MongooseError('Model.insertMany() no longer accepts a callback'); + } + + return new Promise((resolve, reject) => { + this.$__insertMany(arr, options, (err, res) => { + if (err != null) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * ignore + * + * @param {Array} arr + * @param {Object} options + * @param {Function} callback + * @api private + * @memberOf Model + * @method $__insertMany + * @static + */ + +Model.$__insertMany = function(arr, options, callback) { + const _this = this; + if (typeof options === 'function') { + callback = options; + options = null; + } + + callback = callback || utils.noop; + options = options || {}; + const limit = options.limit || 1000; + const rawResult = !!options.rawResult; + const ordered = typeof options.ordered === 'boolean' ? options.ordered : true; + const throwOnValidationError = typeof options.throwOnValidationError === 'boolean' ? options.throwOnValidationError : false; + const lean = !!options.lean; + + if (!Array.isArray(arr)) { + arr = [arr]; + } + + const validationErrors = []; + const validationErrorsToOriginalOrder = new Map(); + const results = ordered ? null : new Array(arr.length); + const toExecute = arr.map((doc, index) => + callback => { + // If option `lean` is set to true bypass validation and hydration + if (lean) { + // we have to execute callback at the nextTick to be compatible + // with parallelLimit, as `results` variable has TDZ issue if we + // execute the callback synchronously + return immediate(() => callback(null, doc)); + } + if (!(doc instanceof _this)) { + if (doc != null && typeof doc !== 'object') { + return callback(new ObjectParameterError(doc, 'arr.' + index, 'insertMany')); + } + try { + doc = new _this(doc); + } catch (err) { + return callback(err); + } + } + if (options.session != null) { + doc.$session(options.session); + } + // If option `lean` is set to true bypass validation + if (lean) { + // we have to execute callback at the nextTick to be compatible + // with parallelLimit, as `results` variable has TDZ issue if we + // execute the callback synchronously + return immediate(() => callback(null, doc)); + } + doc.$validate().then( + () => { callback(null, doc); }, + error => { + if (ordered === false) { + validationErrors.push(error); + validationErrorsToOriginalOrder.set(error, index); + results[index] = error; + return callback(null, null); + } + callback(error); + } + ); + }); + + parallelLimit(toExecute, limit, function(error, docs) { + if (error) { + callback(error, null); + return; + } + + const originalDocIndex = new Map(); + const validDocIndexToOriginalIndex = new Map(); + for (let i = 0; i < docs.length; ++i) { + originalDocIndex.set(docs[i], i); + } + + // We filter all failed pre-validations by removing nulls + const docAttributes = docs.filter(function(doc) { + return doc != null; + }); + for (let i = 0; i < docAttributes.length; ++i) { + validDocIndexToOriginalIndex.set(i, originalDocIndex.get(docAttributes[i])); + } + + // Make sure validation errors are in the same order as the + // original documents, so if both doc1 and doc2 both fail validation, + // `Model.insertMany([doc1, doc2])` will always have doc1's validation + // error before doc2's. Re: gh-12791. + if (validationErrors.length > 0) { + validationErrors.sort((err1, err2) => { + return validationErrorsToOriginalOrder.get(err1) - validationErrorsToOriginalOrder.get(err2); + }); + } + + // Quickly escape while there aren't any valid docAttributes + if (docAttributes.length === 0) { + if (throwOnValidationError) { + return callback(new MongooseBulkWriteError( + validationErrors, + results, + null, + 'insertMany' + )); + } + if (rawResult) { + const res = { + acknowledged: true, + insertedCount: 0, + insertedIds: {}, + mongoose: { + validationErrors: validationErrors + } + }; + return callback(null, res); + } + callback(null, []); + return; + } + const docObjects = lean ? docAttributes : docAttributes.map(function(doc) { + if (doc.$__schema.options.versionKey) { + doc[doc.$__schema.options.versionKey] = 0; + } + const shouldSetTimestamps = (!options || options.timestamps !== false) && doc.initializeTimestamps && (!doc.$__ || doc.$__.timestamps !== false); + if (shouldSetTimestamps) { + return doc.initializeTimestamps().toObject(internalToObjectOptions); + } + return doc.toObject(internalToObjectOptions); + }); + + _this.$__collection.insertMany(docObjects, options).then( + res => { + if (!lean) { + for (const attribute of docAttributes) { + attribute.$__reset(); + _setIsNew(attribute, false); + } + } + + if (ordered === false && throwOnValidationError && validationErrors.length > 0) { + for (let i = 0; i < results.length; ++i) { + if (results[i] === void 0) { + results[i] = docs[i]; + } + } + return callback(new MongooseBulkWriteError( + validationErrors, + results, + res, + 'insertMany' + )); + } + + if (rawResult) { + if (ordered === false) { + for (let i = 0; i < results.length; ++i) { + if (results[i] === void 0) { + results[i] = docs[i]; + } + } + + // Decorate with mongoose validation errors in case of unordered, + // because then still do `insertMany()` + res.mongoose = { + validationErrors: validationErrors, + results: results + }; + } + return callback(null, res); + } + + if (options.populate != null) { + return _this.populate(docAttributes, options.populate).then( + docs => { callback(null, docs); }, + err => { + if (err != null) { + err.insertedDocs = docAttributes; + } + throw err; + } + ); + } + + callback(null, docAttributes); + }, + error => { + // `writeErrors` is a property reported by the MongoDB driver, + // just not if there's only 1 error. + if (error.writeErrors == null && + (error.result && error.result.result && error.result.result.writeErrors) != null) { + error.writeErrors = error.result.result.writeErrors; + } + + // `insertedDocs` is a Mongoose-specific property + const hasWriteErrors = error && error.writeErrors; + const erroredIndexes = new Set((error && error.writeErrors || []).map(err => err.index)); + + if (error.writeErrors != null) { + for (let i = 0; i < error.writeErrors.length; ++i) { + const originalIndex = validDocIndexToOriginalIndex.get(error.writeErrors[i].index); + error.writeErrors[i] = { + ...error.writeErrors[i], + index: originalIndex + }; + if (!ordered) { + results[originalIndex] = error.writeErrors[i]; + } + } + } + + if (!ordered) { + for (let i = 0; i < results.length; ++i) { + if (results[i] === void 0) { + results[i] = docs[i]; + } + } + + error.results = results; + } + + let firstErroredIndex = -1; + error.insertedDocs = docAttributes. + filter((doc, i) => { + const isErrored = !hasWriteErrors || erroredIndexes.has(i); + + if (ordered) { + if (firstErroredIndex > -1) { + return i < firstErroredIndex; + } + + if (isErrored) { + firstErroredIndex = i; + } + } + + return !isErrored; + }). + map(function setIsNewForInsertedDoc(doc) { + if (lean) { + return doc; + } + doc.$__reset(); + _setIsNew(doc, false); + return doc; + }); + + if (rawResult && ordered === false) { + error.mongoose = { + validationErrors: validationErrors, + results: results + }; + } + + callback(error, null); + } + ); + }); +}; + +/*! + * ignore + */ + +function _setIsNew(doc, val) { + doc.$isNew = val; + doc.$emit('isNew', val); + doc.constructor.emit('isNew', val); + + const subdocs = doc.$getAllSubdocs(); + for (const subdoc of subdocs) { + subdoc.$isNew = val; + subdoc.$emit('isNew', val); + } +} + +/** + * Sends multiple `insertOne`, `updateOne`, `updateMany`, `replaceOne`, + * `deleteOne`, and/or `deleteMany` operations to the MongoDB server in one + * command. This is faster than sending multiple independent operations (e.g. + * if you use `create()`) because with `bulkWrite()` there is only one round + * trip to MongoDB. + * + * Mongoose will perform casting on all operations you provide. + * The only exception is [setting the `update` operator for `updateOne` or `updateMany` to a pipeline](https://www.mongodb.com/docs/manual/reference/method/db.collection.bulkWrite/#updateone-and-updatemany): Mongoose does **not** cast update pipelines. + * + * This function does **not** trigger any middleware, neither `save()`, nor `update()`. + * If you need to trigger + * `save()` middleware for every document use [`create()`](https://mongoosejs.com/docs/api/model.html#Model.create()) instead. + * + * #### Example: + * + * Character.bulkWrite([ + * { + * insertOne: { + * document: { + * name: 'Eddard Stark', + * title: 'Warden of the North' + * } + * } + * }, + * { + * updateOne: { + * filter: { name: 'Eddard Stark' }, + * // If you were using the MongoDB driver directly, you'd need to do + * // `update: { $set: { title: ... } }` but mongoose adds $set for + * // you. + * update: { title: 'Hand of the King' } + * } + * }, + * { + * deleteOne: { + * filter: { name: 'Eddard Stark' } + * } + * } + * ]).then(res => { + * // Prints "1 1 1" + * console.log(res.insertedCount, res.modifiedCount, res.deletedCount); + * }); + * + * // Mongoose does **not** cast update pipelines, so no casting for the `update` option below. + * // Mongoose does still cast `filter` + * await Character.bulkWrite([{ + * updateOne: { + * filter: { name: 'Annika Hansen' }, + * update: [{ $set: { name: 7 } }] // Array means update pipeline, so Mongoose skips casting + * } + * }]); + * + * The [supported operations](https://www.mongodb.com/docs/manual/reference/method/db.collection.bulkWrite/#db.collection.bulkWrite) are: + * + * - `insertOne` + * - `updateOne` + * - `updateMany` + * - `deleteOne` + * - `deleteMany` + * - `replaceOne` + * + * @param {Array} ops + * @param {Object} [ops.insertOne.document] The document to insert + * @param {Object} [ops.insertOne.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation + * @param {Object} [ops.updateOne.filter] Update the first document that matches this filter + * @param {Object} [ops.updateOne.update] An object containing [update operators](https://www.mongodb.com/docs/manual/reference/operator/update/) + * @param {Boolean} [ops.updateOne.upsert=false] If true, insert a doc if none match + * @param {Boolean} [ops.updateOne.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation + * @param {Object} [ops.updateOne.collation] The [MongoDB collation](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-collations) to use + * @param {Array} [ops.updateOne.arrayFilters] The [array filters](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-36-array-filters.html) used in `update` + * @param {Object} [ops.updateMany.filter] Update all the documents that match this filter + * @param {Object} [ops.updateMany.update] An object containing [update operators](https://www.mongodb.com/docs/manual/reference/operator/update/) + * @param {Boolean} [ops.updateMany.upsert=false] If true, insert a doc if no documents match `filter` + * @param {Boolean} [ops.updateMany.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation + * @param {Object} [ops.updateMany.collation] The [MongoDB collation](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-collations) to use + * @param {Array} [ops.updateMany.arrayFilters] The [array filters](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-36-array-filters.html) used in `update` + * @param {Object} [ops.deleteOne.filter] Delete the first document that matches this filter + * @param {Object} [ops.deleteMany.filter] Delete all documents that match this filter + * @param {Object} [ops.replaceOne.filter] Replace the first document that matches this filter + * @param {Object} [ops.replaceOne.replacement] The replacement document + * @param {Boolean} [ops.replaceOne.upsert=false] If true, insert a doc if no documents match `filter` + * @param {Object} [ops.replaceOne.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to the operation + * @param {Object} [options] + * @param {Boolean} [options.ordered=true] If true, execute writes in order and stop at the first error. If false, execute writes in parallel and continue until all writes have either succeeded or errored. + * @param {Boolean} [options.timestamps=true] If false, do not apply [timestamps](https://mongoosejs.com/docs/guide.html#timestamps) to any operations. Can be overridden at the operation-level. + * @param {ClientSession} [options.session=null] The session associated with this bulk write. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {String|number} [options.w=1] The [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/). See [`Query#w()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()) for more information. + * @param {number} [options.wtimeout=null] The [write concern timeout](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout). + * @param {Boolean} [options.j=true] If false, disable [journal acknowledgement](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option) + * @param {Boolean} [options.skipValidation=false] Set to true to skip Mongoose schema validation on bulk write operations. Mongoose currently runs validation on `insertOne` and `replaceOne` operations by default. + * @param {Boolean} [options.bypassDocumentValidation=false] If true, disable [MongoDB server-side schema validation](https://www.mongodb.com/docs/manual/core/schema-validation/) for all writes in this bulk. + * @param {Boolean} [options.throwOnValidationError=false] If true and `ordered: false`, throw an error if one of the operations failed validation, but all valid operations completed successfully. + * @param {Boolean} [options.strict=null] Overwrites the [`strict` option](https://mongoosejs.com/docs/guide.html#strict) on schema. If false, allows filtering and writing fields not defined in the schema for all writes in this bulk. + * @return {Promise} resolves to a [`BulkWriteOpResult`](https://mongodb.github.io/node-mongodb-native/4.9/classes/BulkWriteResult.html) if the operation succeeds + * @api public + */ + +Model.bulkWrite = async function bulkWrite(ops, options) { + _checkContext(this, 'bulkWrite'); + + if (typeof options === 'function' || + typeof arguments[2] === 'function') { + throw new MongooseError('Model.bulkWrite() no longer accepts a callback'); + } + options = options || {}; + + const shouldSkip = await new Promise((resolve, reject) => { + this.hooks.execPre('bulkWrite', this, [ops, options], (err) => { + if (err != null) { + if (err instanceof Kareem.skipWrappedFunction) { + return resolve(err); + } + return reject(err); + } + resolve(); + }); + }); + + if (shouldSkip) { + return shouldSkip.args[0]; + } + + const ordered = options.ordered == null ? true : options.ordered; + + if (ops.length === 0) { + return getDefaultBulkwriteResult(); + } + + const validations = ops.map(op => castBulkWrite(this, op, options)); + const asyncLocalStorage = this.db.base.transactionAsyncLocalStorage?.getStore(); + if ((!options || !options.hasOwnProperty('session')) && asyncLocalStorage?.session != null) { + options = { ...options, session: asyncLocalStorage.session }; + } + + let res = null; + if (ordered) { + await new Promise((resolve, reject) => { + each(validations, (fn, cb) => fn(cb), error => { + if (error) { + return reject(error); + } + + resolve(); + }); + }); + + try { + res = await this.$__collection.bulkWrite(ops, options); + } catch (error) { + await new Promise((resolve, reject) => { + const _opts = { error: error }; + this.hooks.execPost('bulkWrite', this, [null], _opts, (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); + } + } else { + let remaining = validations.length; + let validOps = []; + let validationErrors = []; + const results = []; + await new Promise((resolve) => { + for (let i = 0; i < validations.length; ++i) { + validations[i]((err) => { + if (err == null) { + validOps.push(i); + } else { + validationErrors.push({ index: i, error: err }); + results[i] = err; + } + if (--remaining <= 0) { + resolve(); + } + }); + } + }); + + validationErrors = validationErrors. + sort((v1, v2) => v1.index - v2.index). + map(v => v.error); + + const validOpIndexes = validOps; + validOps = validOps.sort().map(index => ops[index]); + + if (validOps.length === 0) { + if (options.throwOnValidationError && validationErrors.length) { + throw new MongooseBulkWriteError( + validationErrors, + results, + res, + 'bulkWrite' + ); + } + return getDefaultBulkwriteResult(); + } + + let error; + [res, error] = await this.$__collection.bulkWrite(validOps, options). + then(res => ([res, null])). + catch(err => ([null, err])); + + if (error) { + if (validationErrors.length > 0) { + error.mongoose = error.mongoose || {}; + error.mongoose.validationErrors = validationErrors; + } + + await new Promise((resolve, reject) => { + const _opts = { error: error }; + this.hooks.execPost('bulkWrite', this, [null], _opts, (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); + } + + for (let i = 0; i < validOpIndexes.length; ++i) { + results[validOpIndexes[i]] = null; + } + if (validationErrors.length > 0) { + if (options.throwOnValidationError) { + throw new MongooseBulkWriteError( + validationErrors, + results, + res, + 'bulkWrite' + ); + } else { + res.mongoose = res.mongoose || {}; + res.mongoose.validationErrors = validationErrors; + res.mongoose.results = results; + } + } + } + + await new Promise((resolve, reject) => { + this.hooks.execPost('bulkWrite', this, [res], (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); + + return res; +}; + +/** + * takes an array of documents, gets the changes and inserts/updates documents in the database + * according to whether or not the document is new, or whether it has changes or not. + * + * `bulkSave` uses `bulkWrite` under the hood, so it's mostly useful when dealing with many documents (10K+) + * + * @param {Array} documents + * @param {Object} [options] options passed to the underlying `bulkWrite()` + * @param {Boolean} [options.timestamps] defaults to `null`, when set to false, mongoose will not add/update timestamps to the documents. + * @param {ClientSession} [options.session=null] The session associated with this bulk write. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {String|number} [options.w=1] The [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/). See [`Query#w()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()) for more information. + * @param {number} [options.wtimeout=null] The [write concern timeout](https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout). + * @param {Boolean} [options.j=true] If false, disable [journal acknowledgement](https://www.mongodb.com/docs/manual/reference/write-concern/#j-option) + * + */ +Model.bulkSave = async function bulkSave(documents, options) { + options = options || {}; + + if (options.timestamps != null) { + for (const document of documents) { + document.$__.saveOptions = document.$__.saveOptions || {}; + document.$__.saveOptions.timestamps = options.timestamps; + } + } else { + for (const document of documents) { + if (document.$__.timestamps != null) { + document.$__.saveOptions = document.$__.saveOptions || {}; + document.$__.saveOptions.timestamps = document.$__.timestamps; + } + } + } + + await Promise.all(documents.map(buildPreSavePromise)); + + const writeOperations = this.buildBulkWriteOperations(documents, { skipValidation: true, timestamps: options.timestamps }); + + const { bulkWriteResult, bulkWriteError } = await this.bulkWrite(writeOperations, options).then( + (res) => ({ bulkWriteResult: res, bulkWriteError: null }), + (err) => ({ bulkWriteResult: null, bulkWriteError: err }) + ); + + await Promise.all( + documents.map(async(document) => { + const documentError = bulkWriteError && bulkWriteError.writeErrors.find(writeError => { + const writeErrorDocumentId = writeError.err.op._id || writeError.err.op.q._id; + return writeErrorDocumentId.toString() === document._id.toString(); + }); + + if (documentError == null) { + await handleSuccessfulWrite(document); + } + }) + ); + + if (bulkWriteError && bulkWriteError.writeErrors && bulkWriteError.writeErrors.length) { + throw bulkWriteError; + } + + return bulkWriteResult; +}; + +function buildPreSavePromise(document) { + return new Promise((resolve, reject) => { + document.schema.s.hooks.execPre('save', document, (err) => { + if (err) { + reject(err); + return; + } + resolve(); + }); + }); +} + +function handleSuccessfulWrite(document) { + return new Promise((resolve, reject) => { + if (document.$isNew) { + _setIsNew(document, false); + } + + document.$__reset(); + document.schema.s.hooks.execPost('save', document, [document], {}, (err) => { + if (err) { + reject(err); + return; + } + resolve(); + }); + + }); +} + +/** + * Apply defaults to the given document or POJO. + * + * @param {Object|Document} obj object or document to apply defaults on + * @returns {Object|Document} + * @api public + */ + +Model.applyDefaults = function applyDefaults(doc) { + if (doc.$__ != null) { + applyDefaultsHelper(doc, doc.$__.fields, doc.$__.exclude); + + for (const subdoc of doc.$getAllSubdocs()) { + applyDefaults(subdoc, subdoc.$__.fields, subdoc.$__.exclude); + } + + return doc; + } + + applyDefaultsToPOJO(doc, this.schema); + + return doc; +}; + +/** + * Cast the given POJO to the model's schema + * + * #### Example: + * + * const Test = mongoose.model('Test', Schema({ num: Number })); + * + * const obj = Test.castObject({ num: '42' }); + * obj.num; // 42 as a number + * + * Test.castObject({ num: 'not a number' }); // Throws a ValidationError + * + * @param {Object} obj object or document to cast + * @param {Object} options options passed to castObject + * @param {Boolean} options.ignoreCastErrors If set to `true` will not throw a ValidationError and only return values that were successfully cast. + * @returns {Object} POJO casted to the model's schema + * @throws {ValidationError} if casting failed for at least one path + * @api public + */ + +Model.castObject = function castObject(obj, options) { + options = options || {}; + const ret = {}; + + const schema = this.schema; + const paths = Object.keys(schema.paths); + + for (const path of paths) { + const schemaType = schema.path(path); + if (!schemaType || !schemaType.$isMongooseArray) { + continue; + } + + const val = get(obj, path); + pushNestedArrayPaths(paths, val, path); + } + + let error = null; + + for (const path of paths) { + const schemaType = schema.path(path); + if (schemaType == null) { + continue; + } + + let val = get(obj, path, void 0); + + if (val == null) { + continue; + } + + const pieces = path.indexOf('.') === -1 ? [path] : path.split('.'); + let cur = ret; + for (let i = 0; i < pieces.length - 1; ++i) { + if (cur[pieces[i]] == null) { + cur[pieces[i]] = isNaN(pieces[i + 1]) ? {} : []; + } + cur = cur[pieces[i]]; + } + + if (schemaType.$isMongooseDocumentArray) { + continue; + } + if (schemaType.$isSingleNested || schemaType.$isMongooseDocumentArrayElement) { + try { + val = Model.castObject.call(schemaType.caster, val); + } catch (err) { + if (!options.ignoreCastErrors) { + error = error || new ValidationError(); + error.addError(path, err); + } + continue; + } + + cur[pieces[pieces.length - 1]] = val; + continue; + } + + try { + val = schemaType.cast(val); + cur[pieces[pieces.length - 1]] = val; + } catch (err) { + if (!options.ignoreCastErrors) { + error = error || new ValidationError(); + error.addError(path, err); + } + + continue; + } + } + + if (error != null) { + throw error; + } + + return ret; +}; + +/** + * Build bulk write operations for `bulkSave()`. + * + * @param {Array} documents The array of documents to build write operations of + * @param {Object} options + * @param {Boolean} options.skipValidation defaults to `false`, when set to true, building the write operations will bypass validating the documents. + * @param {Boolean} options.timestamps defaults to `null`, when set to false, mongoose will not add/update timestamps to the documents. + * @return {Array} Returns a array of all Promises the function executes to be awaited. + * @api private + */ + +Model.buildBulkWriteOperations = function buildBulkWriteOperations(documents, options) { + if (!Array.isArray(documents)) { + throw new Error(`bulkSave expects an array of documents to be passed, received \`${documents}\` instead`); + } + + setDefaultOptions(); + const discriminatorKey = this.schema.options.discriminatorKey; + + const writeOperations = documents.reduce((accumulator, document, i) => { + if (!options.skipValidation) { + if (!(document instanceof Document)) { + throw new Error(`documents.${i} was not a mongoose document, documents must be an array of mongoose documents (instanceof mongoose.Document).`); + } + const validationError = document.validateSync(); + if (validationError) { + throw validationError; + } + } + + const isANewDocument = document.isNew; + if (isANewDocument) { + const writeOperation = { insertOne: { document } }; + utils.injectTimestampsOption(writeOperation.insertOne, options.timestamps); + accumulator.push(writeOperation); + + return accumulator; + } + + const delta = document.$__delta(); + const isDocumentWithChanges = delta != null && !utils.isEmptyObject(delta[0]); + + if (isDocumentWithChanges) { + const where = document.$__where(delta[0]); + const changes = delta[1]; + + _applyCustomWhere(document, where); + + // If shard key is set, add shard keys to _filter_ condition to right shard is targeted + const shardKey = this.schema.options.shardKey; + if (shardKey) { + const paths = Object.keys(shardKey); + const len = paths.length; + + for (let i = 0; i < len; ++i) { + where[paths[i]] = shardKey[paths[i]]; + } + } + + // Set the discriminator key, so bulk write casting knows which + // schema to use re: gh-13907 + if (document[discriminatorKey] != null && !(discriminatorKey in where)) { + where[discriminatorKey] = document[discriminatorKey]; + } + + document.$__version(where, delta); + const writeOperation = { updateOne: { filter: where, update: changes } }; + utils.injectTimestampsOption(writeOperation.updateOne, options.timestamps); + accumulator.push(writeOperation); + + return accumulator; + } + + return accumulator; + }, []); + + return writeOperations; + + + function setDefaultOptions() { + options = options || {}; + if (options.skipValidation == null) { + options.skipValidation = false; + } + } +}; + + +/** + * Shortcut for creating a new Document from existing raw data, pre-saved in the DB. + * The document returned has no paths marked as modified initially. + * + * #### Example: + * + * // hydrate previous data into a Mongoose document + * const mongooseCandy = Candy.hydrate({ _id: '54108337212ffb6d459f854c', type: 'jelly bean' }); + * + * @param {Object} obj + * @param {Object|String|String[]} [projection] optional projection containing which fields should be selected for this document + * @param {Object} [options] optional options + * @param {Boolean} [options.setters=false] if true, apply schema setters when hydrating + * @param {Boolean} [options.hydratedPopulatedDocs=false] if true, populates the docs if passing pre-populated data + * @return {Document} document instance + * @api public + */ + +Model.hydrate = function(obj, projection, options) { + _checkContext(this, 'hydrate'); + + if (projection != null) { + if (obj != null && obj.$__ != null) { + obj = obj.toObject(internalToObjectOptions); + } + obj = applyProjection(obj, projection); + } + const document = require('./queryHelpers').createModel(this, obj, projection); + document.$init(obj, options); + return document; +}; + +/** + * Same as `updateOne()`, except MongoDB will update _all_ documents that match + * `filter` (as opposed to just the first one) regardless of the value of + * the `multi` option. + * + * **Note** updateMany will _not_ fire update middleware. Use `pre('updateMany')` + * and `post('updateMany')` instead. + * + * #### Example: + * + * const res = await Person.updateMany({ name: /Stark$/ }, { isDeleted: true }); + * res.matchedCount; // Number of documents matched + * res.modifiedCount; // Number of documents modified + * res.acknowledged; // Boolean indicating everything went smoothly. + * res.upsertedId; // null or an id containing a document that had to be upserted. + * res.upsertedCount; // Number indicating how many documents had to be upserted. Will either be 0 or 1. + * + * This function triggers the following middleware. + * + * - `updateMany()` + * + * @param {Object} filter + * @param {Object|Array} update. If array, this update will be treated as an update pipeline and not casted. + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @return {Query} + * @see Query docs https://mongoosejs.com/docs/queries.html + * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output + * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html + * @api public + */ + +Model.updateMany = function updateMany(conditions, doc, options) { + _checkContext(this, 'updateMany'); + + return _update(this, 'updateMany', conditions, doc, options); +}; + +/** + * Update _only_ the first document that matches `filter`. + * + * - Use `replaceOne()` if you want to overwrite an entire document rather than using atomic operators like `$set`. + * + * #### Example: + * + * const res = await Person.updateOne({ name: 'Jean-Luc Picard' }, { ship: 'USS Enterprise' }); + * res.matchedCount; // Number of documents matched + * res.modifiedCount; // Number of documents modified + * res.acknowledged; // Boolean indicating everything went smoothly. + * res.upsertedId; // null or an id containing a document that had to be upserted. + * res.upsertedCount; // Number indicating how many documents had to be upserted. Will either be 0 or 1. + * + * This function triggers the following middleware. + * + * - `updateOne()` + * + * @param {Object} filter + * @param {Object|Array} update. If array, this update will be treated as an update pipeline and not casted. + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @return {Query} + * @see Query docs https://mongoosejs.com/docs/queries.html + * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output + * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html + * @api public + */ + +Model.updateOne = function updateOne(conditions, doc, options) { + _checkContext(this, 'updateOne'); + + return _update(this, 'updateOne', conditions, doc, options); +}; + +/** + * Replace the existing document with the given document (no atomic operators like `$set`). + * + * #### Example: + * + * const res = await Person.replaceOne({ _id: 24601 }, { name: 'Jean Valjean' }); + * res.matchedCount; // Number of documents matched + * res.modifiedCount; // Number of documents modified + * res.acknowledged; // Boolean indicating everything went smoothly. + * res.upsertedId; // null or an id containing a document that had to be upserted. + * res.upsertedCount; // Number indicating how many documents had to be upserted. Will either be 0 or 1. + * + * This function triggers the following middleware. + * + * - `replaceOne()` + * + * @param {Object} filter + * @param {Object} doc + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} + * @see Query docs https://mongoosejs.com/docs/queries.html + * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html + * @return {Query} + * @api public + */ + +Model.replaceOne = function replaceOne(conditions, doc, options) { + _checkContext(this, 'replaceOne'); + + const versionKey = this && this.schema && this.schema.options && this.schema.options.versionKey || null; + if (versionKey && !doc[versionKey]) { + doc[versionKey] = 0; + } + + return _update(this, 'replaceOne', conditions, doc, options); +}; + +/** + * Common code for `updateOne()`, `updateMany()`, `replaceOne()`, and `update()` + * because they need to do the same thing + * @api private + */ + +function _update(model, op, conditions, doc, options) { + const mq = new model.Query({}, {}, model, model.collection); + + // gh-2406 + // make local deep copy of conditions + if (conditions instanceof Document) { + conditions = conditions.toObject(); + } else { + conditions = clone(conditions); + } + options = typeof options === 'function' ? options : clone(options); + + const versionKey = model && + model.schema && + model.schema.options && + model.schema.options.versionKey || null; + decorateUpdateWithVersionKey(doc, options, versionKey); + + return mq[op](conditions, doc, options); +} + +/** + * Performs [aggregations](https://www.mongodb.com/docs/manual/aggregation/) on the models collection. + * + * If a `callback` is passed, the `aggregate` is executed and a `Promise` is returned. If a callback is not passed, the `aggregate` itself is returned. + * + * This function triggers the following middleware. + * + * - `aggregate()` + * + * #### Example: + * + * // Find the max balance of all accounts + * const res = await Users.aggregate([ + * { $group: { _id: null, maxBalance: { $max: '$balance' }}}, + * { $project: { _id: 0, maxBalance: 1 }} + * ]); + * + * console.log(res); // [ { maxBalance: 98000 } ] + * + * // Or use the aggregation pipeline builder. + * const res = await Users.aggregate(). + * group({ _id: null, maxBalance: { $max: '$balance' } }). + * project('-id maxBalance'). + * exec(); + * console.log(res); // [ { maxBalance: 98 } ] + * + * #### Note: + * + * - Mongoose does **not** cast aggregation pipelines to the model's schema because `$project` and `$group` operators allow redefining the "shape" of the documents at any stage of the pipeline, which may leave documents in an incompatible format. You can use the [mongoose-cast-aggregation plugin](https://github.com/AbdelrahmanHafez/mongoose-cast-aggregation) to enable minimal casting for aggregation pipelines. + * - The documents returned are plain javascript objects, not mongoose documents (since any shape of document can be returned). + * + * #### More About Aggregations: + * + * - [Mongoose `Aggregate`](https://mongoosejs.com/docs/api/aggregate.html) + * - [An Introduction to Mongoose Aggregate](https://masteringjs.io/tutorials/mongoose/aggregate) + * - [MongoDB Aggregation docs](https://www.mongodb.com/docs/manual/applications/aggregation/) + * + * @see Aggregate https://mongoosejs.com/docs/api/aggregate.html#Aggregate() + * @see MongoDB https://www.mongodb.com/docs/manual/applications/aggregation/ + * @param {Array} [pipeline] aggregation pipeline as an array of objects + * @param {Object} [options] aggregation options + * @return {Aggregate} + * @api public + */ + +Model.aggregate = function aggregate(pipeline, options) { + _checkContext(this, 'aggregate'); + + if (typeof options === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.aggregate() no longer accepts a callback'); + } + + const aggregate = new Aggregate(pipeline || []); + aggregate.model(this); + if (options != null) { + aggregate.option(options); + } + + if (typeof callback === 'undefined') { + return aggregate; + } + + return aggregate; +}; + +/** + * Casts and validates the given object against this model's schema, passing the + * given `context` to custom validators. + * + * #### Example: + * + * const Model = mongoose.model('Test', Schema({ + * name: { type: String, required: true }, + * age: { type: Number, required: true } + * }); + * + * try { + * await Model.validate({ name: null }, ['name']) + * } catch (err) { + * err instanceof mongoose.Error.ValidationError; // true + * Object.keys(err.errors); // ['name'] + * } + * + * @param {Object} obj + * @param {Object|Array|String} pathsOrOptions + * @param {Object} [context] + * @return {Promise} casted and validated copy of `obj` if validation succeeded + * @api public + */ + +Model.validate = async function validate(obj, pathsOrOptions, context) { + if ((arguments.length < 3) || (arguments.length === 3 && typeof arguments[2] === 'function')) { + // For convenience, if we're validating a document or an object, make `context` default to + // the model so users don't have to always pass `context`, re: gh-10132, gh-10346 + context = obj; + } + if (typeof context === 'function' || typeof arguments[3] === 'function') { + throw new MongooseError('Model.validate() no longer accepts a callback'); + } + + let schema = this.schema; + const discriminatorKey = schema.options.discriminatorKey; + if (schema.discriminators != null && obj != null && obj[discriminatorKey] != null) { + schema = getSchemaDiscriminatorByValue(schema, obj[discriminatorKey]) || schema; + } + let paths = Object.keys(schema.paths); + + if (pathsOrOptions != null) { + const _pathsToValidate = typeof pathsOrOptions === 'string' ? new Set(pathsOrOptions.split(' ')) : Array.isArray(pathsOrOptions) ? new Set(pathsOrOptions) : new Set(paths); + paths = paths.filter(p => { + if (pathsOrOptions.pathsToSkip) { + if (Array.isArray(pathsOrOptions.pathsToSkip)) { + if (pathsOrOptions.pathsToSkip.find(x => x == p)) { + return false; + } + } else if (typeof pathsOrOptions.pathsToSkip == 'string') { + if (pathsOrOptions.pathsToSkip.includes(p)) { + return false; + } + } + } + const pieces = p.split('.'); + let cur = pieces[0]; + + for (const piece of pieces) { + if (_pathsToValidate.has(cur)) { + return true; + } + cur += '.' + piece; + } + + return _pathsToValidate.has(p); + }); + } + + for (const path of paths) { + const schemaType = schema.path(path); + if (!schemaType || !schemaType.$isMongooseArray || schemaType.$isMongooseDocumentArray) { + continue; + } + + const val = get(obj, path); + pushNestedArrayPaths(paths, val, path); + } + + let error = null; + paths = new Set(paths); + + try { + obj = this.castObject(obj); + } catch (err) { + error = err; + for (const key of Object.keys(error.errors || {})) { + paths.delete(key); + } + } + + let remaining = paths.size; + + return new Promise((resolve, reject) => { + for (const path of paths) { + const schemaType = schema.path(path); + if (schemaType == null) { + _checkDone(); + continue; + } + + const pieces = path.indexOf('.') === -1 ? [path] : path.split('.'); + let cur = obj; + for (let i = 0; i < pieces.length - 1; ++i) { + cur = cur[pieces[i]]; + } + + const val = get(obj, path, void 0); + + schemaType.doValidate(val, err => { + if (err) { + error = error || new ValidationError(); + error.addError(path, err); + } + _checkDone(); + }, context, { path: path }); + } + + function _checkDone() { + if (--remaining <= 0) { + if (error) { + reject(error); + } else { + resolve(obj); + } + } + } + }); +}; + +/** + * Populates document references. + * + * Changed in Mongoose 6: the model you call `populate()` on should be the + * "local field" model, **not** the "foreign field" model. + * + * #### Available top-level options: + * + * - path: space delimited path(s) to populate + * - select: optional fields to select + * - match: optional query conditions to match + * - model: optional name of the model to use for population + * - options: optional query options like sort, limit, etc + * - justOne: optional boolean, if true Mongoose will always set `path` to a document, or `null` if no document was found. If false, Mongoose will always set `path` to an array, which will be empty if no documents are found. Inferred from schema by default. + * - strictPopulate: optional boolean, set to `false` to allow populating paths that aren't in the schema. + * + * #### Example: + * + * const Dog = mongoose.model('Dog', new Schema({ name: String, breed: String })); + * const Person = mongoose.model('Person', new Schema({ + * name: String, + * pet: { type: mongoose.ObjectId, ref: 'Dog' } + * })); + * + * const pets = await Pet.create([ + * { name: 'Daisy', breed: 'Beagle' }, + * { name: 'Einstein', breed: 'Catalan Sheepdog' } + * ]); + * + * // populate many plain objects + * const users = [ + * { name: 'John Wick', dog: pets[0]._id }, + * { name: 'Doc Brown', dog: pets[1]._id } + * ]; + * await User.populate(users, { path: 'dog', select: 'name' }); + * users[0].dog.name; // 'Daisy' + * users[0].dog.breed; // undefined because of `select` + * + * @param {Document|Array} docs Either a single document or array of documents to populate. + * @param {Object|String} options Either the paths to populate or an object specifying all parameters + * @param {string} [options.path=null] The path to populate. + * @param {string|PopulateOptions} [options.populate=null] Recursively populate paths in the populated documents. See [deep populate docs](https://mongoosejs.com/docs/populate.html#deep-populate). + * @param {boolean} [options.retainNullValues=false] By default, Mongoose removes null and undefined values from populated arrays. Use this option to make `populate()` retain `null` and `undefined` array entries. + * @param {boolean} [options.getters=false] If true, Mongoose will call any getters defined on the `localField`. By default, Mongoose gets the raw value of `localField`. For example, you would need to set this option to `true` if you wanted to [add a `lowercase` getter to your `localField`](https://mongoosejs.com/docs/schematypes.html#schematype-options). + * @param {boolean} [options.clone=false] When you do `BlogPost.find().populate('author')`, blog posts with the same author will share 1 copy of an `author` doc. Enable this option to make Mongoose clone populated docs before assigning them. + * @param {Object|Function} [options.match=null] Add an additional filter to the populate query. Can be a filter object containing [MongoDB query syntax](https://www.mongodb.com/docs/manual/tutorial/query-documents/), or a function that returns a filter object. + * @param {Boolean} [options.skipInvalidIds=false] By default, Mongoose throws a cast error if `localField` and `foreignField` schemas don't line up. If you enable this option, Mongoose will instead filter out any `localField` properties that cannot be casted to `foreignField`'s schema type. + * @param {Number} [options.perDocumentLimit=null] For legacy reasons, `limit` with `populate()` may give incorrect results because it only executes a single query for every document being populated. If you set `perDocumentLimit`, Mongoose will ensure correct `limit` per document by executing a separate query for each document to `populate()`. For example, `.find().populate({ path: 'test', perDocumentLimit: 2 })` will execute 2 additional queries if `.find()` returns 2 documents. + * @param {Boolean} [options.strictPopulate=true] Set to false to allow populating paths that aren't defined in the given model's schema. + * @param {Object} [options.options=null] Additional options like `limit` and `lean`. + * @param {Function} [options.transform=null] Function that Mongoose will call on every populated document that allows you to transform the populated document. + * @param {Function} [callback(err,doc)] Optional callback, executed upon completion. Receives `err` and the `doc(s)`. + * @return {Promise} + * @api public + */ + +Model.populate = async function populate(docs, paths) { + _checkContext(this, 'populate'); + if (typeof paths === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Model.populate() no longer accepts a callback'); + } + const _this = this; + // normalized paths + paths = utils.populate(paths); + // data that should persist across subPopulate calls + const cache = {}; + + return new Promise((resolve, reject) => { + _populate(_this, docs, paths, cache, (err, res) => { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * Populate helper + * + * @param {Model} model the model to use + * @param {Document|Array} docs Either a single document or array of documents to populate. + * @param {Object} paths + * @param {never} cache Unused + * @param {Function} [callback] Optional callback, executed upon completion. Receives `err` and the `doc(s)`. + * @return {Function} + * @api private + */ + +function _populate(model, docs, paths, cache, callback) { + let pending = paths.length; + if (paths.length === 0) { + return callback(null, docs); + } + // each path has its own query options and must be executed separately + for (const path of paths) { + populate(model, docs, path, next); + } + + function next(err) { + if (err) { + return callback(err, null); + } + if (--pending) { + return; + } + callback(null, docs); + } +} + +/*! + * Populates `docs` + */ +const excludeIdReg = /\s?-_id\s?/; +const excludeIdRegGlobal = /\s?-_id\s?/g; + +function populate(model, docs, options, callback) { + const populateOptions = options; + if (options.strictPopulate == null) { + if (options._localModel != null && options._localModel.schema._userProvidedOptions.strictPopulate != null) { + populateOptions.strictPopulate = options._localModel.schema._userProvidedOptions.strictPopulate; + } else if (options._localModel != null && model.base.options.strictPopulate != null) { + populateOptions.strictPopulate = model.base.options.strictPopulate; + } else if (model.base.options.strictPopulate != null) { + populateOptions.strictPopulate = model.base.options.strictPopulate; + } + } + + // normalize single / multiple docs passed + if (!Array.isArray(docs)) { + docs = [docs]; + } + if (docs.length === 0 || docs.every(utils.isNullOrUndefined)) { + return callback(); + } + + const modelsMap = getModelsMapForPopulate(model, docs, populateOptions); + + if (modelsMap instanceof MongooseError) { + return immediate(function() { + callback(modelsMap); + }); + } + const len = modelsMap.length; + let vals = []; + + function flatten(item) { + // no need to include undefined values in our query + return undefined !== item; + } + + let _remaining = len; + let hasOne = false; + const params = []; + for (let i = 0; i < len; ++i) { + const mod = modelsMap[i]; + let select = mod.options.select; + let ids = utils.array.flatten(mod.ids, flatten); + ids = utils.array.unique(ids); + + const assignmentOpts = {}; + assignmentOpts.sort = mod && + mod.options && + mod.options.options && + mod.options.options.sort || void 0; + assignmentOpts.excludeId = excludeIdReg.test(select) || (select && select._id === 0); + + // Lean transform may delete `_id`, which would cause assignment + // to fail. So delay running lean transform until _after_ + // `_assign()` + if (mod.options && + mod.options.options && + mod.options.options.lean && + mod.options.options.lean.transform) { + mod.options.options._leanTransform = mod.options.options.lean.transform; + mod.options.options.lean = true; + } + + if (ids.length === 0 || ids.every(utils.isNullOrUndefined)) { + // Ensure that we set to 0 or empty array even + // if we don't actually execute a query to make sure there's a value + // and we know this path was populated for future sets. See gh-7731, gh-8230 + --_remaining; + _assign(model, [], mod, assignmentOpts); + continue; + } + + hasOne = true; + if (typeof populateOptions.foreignField === 'string') { + mod.foreignField.clear(); + mod.foreignField.add(populateOptions.foreignField); + } + const match = createPopulateQueryFilter(ids, mod.match, mod.foreignField, mod.model, mod.options.skipInvalidIds); + if (assignmentOpts.excludeId) { + // override the exclusion from the query so we can use the _id + // for document matching during assignment. we'll delete the + // _id back off before returning the result. + if (typeof select === 'string') { + select = select.replace(excludeIdRegGlobal, ' '); + } else if (Array.isArray(select)) { + select = select.filter(field => field !== '-_id'); + } else { + // preserve original select conditions by copying + select = { ...select }; + delete select._id; + } + } + + if (mod.options.options && mod.options.options.limit != null) { + assignmentOpts.originalLimit = mod.options.options.limit; + } else if (mod.options.limit != null) { + assignmentOpts.originalLimit = mod.options.limit; + } + params.push([mod, match, select, assignmentOpts, _next]); + } + if (!hasOne) { + // If models but no docs, skip further deep populate. + if (modelsMap.length !== 0) { + return callback(); + } + // If no models to populate but we have a nested populate, + // keep trying, re: gh-8946 + if (populateOptions.populate != null) { + const opts = utils.populate(populateOptions.populate).map(pop => Object.assign({}, pop, { + path: populateOptions.path + '.' + pop.path + })); + model.populate(docs, opts).then(res => { callback(null, res); }, err => { callback(err); }); + return; + } + return callback(); + } + + for (const arr of params) { + _execPopulateQuery.apply(null, arr); + } + function _next(err, valsFromDb) { + if (err != null) { + return callback(err, null); + } + vals = vals.concat(valsFromDb); + if (--_remaining === 0) { + _done(); + } + } + + function _done() { + for (const arr of params) { + const mod = arr[0]; + const assignmentOpts = arr[3]; + for (const val of vals) { + mod.options._childDocs.push(val); + } + try { + _assign(model, vals, mod, assignmentOpts); + } catch (err) { + return callback(err); + } + } + + for (const arr of params) { + removeDeselectedForeignField(arr[0].foreignField, arr[0].options, vals); + } + for (const arr of params) { + const mod = arr[0]; + if (mod.options && mod.options.options && mod.options.options._leanTransform) { + for (const doc of vals) { + mod.options.options._leanTransform(doc); + } + } + } + callback(); + } +} + +/*! + * ignore + */ + +function _execPopulateQuery(mod, match, select, assignmentOpts, callback) { + let subPopulate = clone(mod.options.populate); + const queryOptions = Object.assign({ + skip: mod.options.skip, + limit: mod.options.limit, + perDocumentLimit: mod.options.perDocumentLimit + }, mod.options.options); + + if (mod.count) { + delete queryOptions.skip; + } + + if (queryOptions.perDocumentLimit != null) { + queryOptions.limit = queryOptions.perDocumentLimit; + delete queryOptions.perDocumentLimit; + } else if (queryOptions.limit != null) { + queryOptions.limit = queryOptions.limit * mod.ids.length; + } + + const query = mod.model.find(match, select, queryOptions); + // If we're doing virtual populate and projection is inclusive and foreign + // field is not selected, automatically select it because mongoose needs it. + // If projection is exclusive and client explicitly unselected the foreign + // field, that's the client's fault. + for (const foreignField of mod.foreignField) { + if (foreignField !== '_id' && + query.selectedInclusively() && + !isPathSelectedInclusive(query._fields, foreignField)) { + query.select(foreignField); + } + } + + // If using count, still need the `foreignField` so we can match counts + // to documents, otherwise we would need a separate `count()` for every doc. + if (mod.count) { + for (const foreignField of mod.foreignField) { + query.select(foreignField); + } + } + + // If we need to sub-populate, call populate recursively + if (subPopulate) { + // If subpopulating on a discriminator, skip check for non-existent + // paths. Because the discriminator may not have the path defined. + if (mod.model.baseModelName != null) { + if (Array.isArray(subPopulate)) { + subPopulate.forEach(pop => { pop.strictPopulate = false; }); + } else if (typeof subPopulate === 'string') { + subPopulate = { path: subPopulate, strictPopulate: false }; + } else { + subPopulate.strictPopulate = false; + } + } + const basePath = mod.options._fullPath || mod.options.path; + + if (Array.isArray(subPopulate)) { + for (const pop of subPopulate) { + pop._fullPath = basePath + '.' + pop.path; + } + } else if (typeof subPopulate === 'object') { + subPopulate._fullPath = basePath + '.' + subPopulate.path; + } + + query.populate(subPopulate); + } + + query.exec().then( + docs => { + for (const val of docs) { + leanPopulateMap.set(val, mod.model); + } + callback(null, docs); + }, + err => { + callback(err); + } + ); +} + +/*! + * ignore + */ + +function _assign(model, vals, mod, assignmentOpts) { + const options = mod.options; + const isVirtual = mod.isVirtual; + const justOne = mod.justOne; + let _val; + const lean = options && + options.options && + options.options.lean || false; + const len = vals.length; + const rawOrder = {}; + const rawDocs = {}; + let key; + let val; + + // Clone because `assignRawDocsToIdStructure` will mutate the array + const allIds = clone(mod.allIds); + // optimization: + // record the document positions as returned by + // the query result. + for (let i = 0; i < len; i++) { + val = vals[i]; + if (val == null) { + continue; + } + for (const foreignField of mod.foreignField) { + _val = utils.getValue(foreignField, val); + if (Array.isArray(_val)) { + _val = utils.array.unique(utils.array.flatten(_val)); + + for (let __val of _val) { + if (__val instanceof Document) { + __val = __val._id; + } + key = String(__val); + if (rawDocs[key]) { + if (Array.isArray(rawDocs[key])) { + rawDocs[key].push(val); + rawOrder[key].push(i); + } else { + rawDocs[key] = [rawDocs[key], val]; + rawOrder[key] = [rawOrder[key], i]; + } + } else { + if (isVirtual && !justOne) { + rawDocs[key] = [val]; + rawOrder[key] = [i]; + } else { + rawDocs[key] = val; + rawOrder[key] = i; + } + } + } + } else { + if (_val instanceof Document) { + _val = _val._id; + } + key = String(_val); + if (rawDocs[key]) { + if (Array.isArray(rawDocs[key])) { + rawDocs[key].push(val); + rawOrder[key].push(i); + } else if (isVirtual || + rawDocs[key].constructor !== val.constructor || + String(rawDocs[key]._id) !== String(val._id)) { + // May need to store multiple docs with the same id if there's multiple models + // if we have discriminators or a ref function. But avoid converting to an array + // if we have multiple queries on the same model because of `perDocumentLimit` re: gh-9906 + rawDocs[key] = [rawDocs[key], val]; + rawOrder[key] = [rawOrder[key], i]; + } + } else { + rawDocs[key] = val; + rawOrder[key] = i; + } + } + // flag each as result of population + if (!lean) { + val.$__.wasPopulated = val.$__.wasPopulated || { value: _val }; + } + } + } + + assignVals({ + originalModel: model, + // If virtual, make sure to not mutate original field + rawIds: mod.isVirtual ? allIds : mod.allIds, + allIds: allIds, + unpopulatedValues: mod.unpopulatedValues, + foreignField: mod.foreignField, + rawDocs: rawDocs, + rawOrder: rawOrder, + docs: mod.docs, + path: options.path, + options: assignmentOpts, + justOne: mod.justOne, + isVirtual: mod.isVirtual, + allOptions: mod, + populatedModel: mod.model, + lean: lean, + virtual: mod.virtual, + count: mod.count, + match: mod.match + }); +} + +/** + * Compiler utility. + * + * @param {String|Function} name model name or class extending Model + * @param {Schema} schema + * @param {String} collectionName + * @param {Connection} connection + * @param {Mongoose} base mongoose instance + * @api private + */ + +Model.compile = function compile(name, schema, collectionName, connection, base) { + const versioningEnabled = schema.options.versionKey !== false; + + if (versioningEnabled && !schema.paths[schema.options.versionKey]) { + // add versioning to top level documents only + const o = {}; + o[schema.options.versionKey] = Number; + schema.add(o); + } + let model; + if (typeof name === 'function' && name.prototype instanceof Model) { + model = name; + name = model.name; + schema.loadClass(model, false); + model.prototype.$isMongooseModelPrototype = true; + } else { + // generate new class + model = function model(doc, fields, skipId) { + model.hooks.execPreSync('createModel', doc); + if (!(this instanceof model)) { + return new model(doc, fields, skipId); + } + const discriminatorKey = model.schema.options.discriminatorKey; + + if (model.discriminators == null || doc == null || doc[discriminatorKey] == null) { + Model.call(this, doc, fields, skipId); + return; + } + + // If discriminator key is set, use the discriminator instead (gh-7586) + const Discriminator = model.discriminators[doc[discriminatorKey]] || + getDiscriminatorByValue(model.discriminators, doc[discriminatorKey]); + if (Discriminator != null) { + return new Discriminator(doc, fields, skipId); + } + + // Otherwise, just use the top-level model + Model.call(this, doc, fields, skipId); + }; + } + + model.hooks = schema.s.hooks.clone(); + model.base = base; + model.modelName = name; + + if (!(model.prototype instanceof Model)) { + Object.setPrototypeOf(model, Model); + Object.setPrototypeOf(model.prototype, Model.prototype); + } + model.model = function model(name) { + return this.db.model(name); + }; + + model.db = connection; + model.prototype.db = connection; + model.prototype[modelDbSymbol] = connection; + model.discriminators = model.prototype.discriminators = undefined; + model[modelSymbol] = true; + model.events = new EventEmitter(); + + schema._preCompile(); + + const _userProvidedOptions = schema._userProvidedOptions || {}; + + const collectionOptions = { + schemaUserProvidedOptions: _userProvidedOptions, + capped: schema.options.capped, + Promise: model.base.Promise, + modelName: name + }; + if (schema.options.autoCreate !== void 0) { + collectionOptions.autoCreate = schema.options.autoCreate; + } + + const collection = connection.collection( + collectionName, + collectionOptions + ); + + model.prototype.collection = collection; + model.prototype.$collection = collection; + model.prototype[modelCollectionSymbol] = collection; + + model.prototype.$__setSchema(schema); + + // apply methods and statics + applyMethods(model, schema); + applyStatics(model, schema); + applyHooks(model, schema); + applyStaticHooks(model, schema.s.hooks, schema.statics); + + model.schema = model.prototype.$__schema; + model.collection = collection; + model.$__collection = collection; + + // Create custom query constructor + model.Query = function() { + Query.apply(this, arguments); + }; + Object.setPrototypeOf(model.Query.prototype, Query.prototype); + model.Query.base = Query.base; + model.Query.prototype.constructor = Query; + model._applyQueryMiddleware(); + applyQueryMethods(model, schema.query); + + return model; +}; + +/** + * Update this model to use the new connection, including updating all internal + * references and creating a new `Collection` instance using the new connection. + * Not for external use, only used by `setDriver()` to ensure that you can still + * call `setDriver()` after creating a model using `mongoose.model()`. + * + * @param {Connection} newConnection the new connection to use + * @api private + */ + +Model.$__updateConnection = function $__updateConnection(newConnection) { + this.db = newConnection; + this.prototype.db = newConnection; + this.prototype[modelDbSymbol] = newConnection; + + const collection = newConnection.collection( + this.collection.collectionName, + this.collection.opts + ); + + this.prototype.collection = collection; + this.prototype.$collection = collection; + this.prototype[modelCollectionSymbol] = collection; + + this.collection = collection; + this.$__collection = collection; +}; + +/** + * Register custom query methods for this model + * + * @param {Model} model + * @param {Schema} schema + * @api private + */ + +function applyQueryMethods(model, methods) { + for (const i in methods) { + model.Query.prototype[i] = methods[i]; + } +} + +/** + * Subclass this model with `conn`, `schema`, and `collection` settings. + * + * @param {Connection} conn + * @param {Schema} [schema] + * @param {String} [collection] + * @return {Model} + * @api private + * @memberOf Model + * @static + * @method __subclass + */ + +Model.__subclass = function subclass(conn, schema, collection) { + // subclass model using this connection and collection name + const _this = this; + + const Model = function Model(doc, fields, skipId) { + if (!(this instanceof Model)) { + return new Model(doc, fields, skipId); + } + _this.call(this, doc, fields, skipId); + }; + + Object.setPrototypeOf(Model, _this); + Object.setPrototypeOf(Model.prototype, _this.prototype); + Model.db = conn; + Model.prototype.db = conn; + Model.prototype[modelDbSymbol] = conn; + + _this[subclassedSymbol] = _this[subclassedSymbol] || []; + _this[subclassedSymbol].push(Model); + if (_this.discriminators != null) { + Model.discriminators = {}; + for (const key of Object.keys(_this.discriminators)) { + Model.discriminators[key] = _this.discriminators[key]. + __subclass(_this.db, _this.discriminators[key].schema, collection); + } + } + + const s = schema && typeof schema !== 'string' + ? schema + : _this.prototype.$__schema; + + const options = s.options || {}; + const _userProvidedOptions = s._userProvidedOptions || {}; + + if (!collection) { + collection = _this.prototype.$__schema.get('collection') || + utils.toCollectionName(_this.modelName, this.base.pluralize()); + } + + const collectionOptions = { + schemaUserProvidedOptions: _userProvidedOptions, + capped: s && options.capped + }; + + Model.prototype.collection = conn.collection(collection, collectionOptions); + Model.prototype.$collection = Model.prototype.collection; + Model.prototype[modelCollectionSymbol] = Model.prototype.collection; + Model.collection = Model.prototype.collection; + Model.$__collection = Model.collection; + // Errors handled internally, so ignore + Model.init().catch(() => {}); + return Model; +}; + +/** + * Apply changes made to this model's schema after this model was compiled. + * By default, adding virtuals and other properties to a schema after the model is compiled does nothing. + * Call this function to apply virtuals and properties that were added later. + * + * #### Example: + * + * const schema = new mongoose.Schema({ field: String }); + * const TestModel = mongoose.model('Test', schema); + * TestModel.schema.virtual('myVirtual').get(function() { + * return this.field + ' from myVirtual'; + * }); + * const doc = new TestModel({ field: 'Hello' }); + * doc.myVirtual; // undefined + * + * TestModel.recompileSchema(); + * doc.myVirtual; // 'Hello from myVirtual' + * + * @return {undefined} + * @api public + * @memberOf Model + * @static + * @method recompileSchema + */ + +Model.recompileSchema = function recompileSchema() { + this.prototype.$__setSchema(this.schema); + + if (this.schema._applyDiscriminators != null) { + for (const disc of this.schema._applyDiscriminators.keys()) { + this.discriminator(disc, this.schema._applyDiscriminators.get(disc)); + } + } + + applyEmbeddedDiscriminators(this.schema, new WeakSet(), true); +}; + +/** + * Helper for console.log. Given a model named 'MyModel', returns the string + * `'Model { MyModel }'`. + * + * #### Example: + * + * const MyModel = mongoose.model('Test', Schema({ name: String })); + * MyModel.inspect(); // 'Model { Test }' + * console.log(MyModel); // Prints 'Model { Test }' + * + * @api public + */ + +Model.inspect = function() { + return `Model { ${this.modelName} }`; +}; + +if (util.inspect.custom) { + // Avoid Node deprecation warning DEP0079 + Model[util.inspect.custom] = Model.inspect; +} + +/*! + * Applies query middleware from this model's schema to this model's + * Query constructor. + */ + +Model._applyQueryMiddleware = function _applyQueryMiddleware() { + const Query = this.Query; + const queryMiddleware = this.schema.s.hooks.filter(hook => { + const contexts = _getContexts(hook); + if (hook.name === 'validate') { + return !!contexts.query; + } + if (hook.name === 'deleteOne' || hook.name === 'updateOne') { + return !!contexts.query || Object.keys(contexts).length === 0; + } + if (hook.query != null || hook.document != null) { + return !!hook.query; + } + return true; + }); + + Query.prototype._queryMiddleware = queryMiddleware; +}; + +function _getContexts(hook) { + const ret = {}; + if (hook.hasOwnProperty('query')) { + ret.query = hook.query; + } + if (hook.hasOwnProperty('document')) { + ret.document = hook.document; + } + return ret; +} + +/*! + * Module exports. + */ + +module.exports = exports = Model; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/mongoose.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/mongoose.js new file mode 100644 index 000000000..cfac2331c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/mongoose.js @@ -0,0 +1,1326 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const Document = require('./document'); +const EventEmitter = require('events').EventEmitter; +const Kareem = require('kareem'); +const Schema = require('./schema'); +const SchemaType = require('./schemaType'); +const SchemaTypes = require('./schema/index'); +const VirtualType = require('./virtualType'); +const STATES = require('./connectionState'); +const VALID_OPTIONS = require('./validOptions'); +const Types = require('./types'); +const Query = require('./query'); +const Model = require('./model'); +const applyPlugins = require('./helpers/schema/applyPlugins'); +const builtinPlugins = require('./plugins'); +const driver = require('./driver'); +const legacyPluralize = require('./helpers/pluralize'); +const utils = require('./utils'); +const pkg = require('../package.json'); +const cast = require('./cast'); + +const Aggregate = require('./aggregate'); +const trusted = require('./helpers/query/trusted').trusted; +const sanitizeFilter = require('./helpers/query/sanitizeFilter'); +const isBsonType = require('./helpers/isBsonType'); +const MongooseError = require('./error/mongooseError'); +const SetOptionError = require('./error/setOptionError'); +const applyEmbeddedDiscriminators = require('./helpers/discriminator/applyEmbeddedDiscriminators'); + +const defaultMongooseSymbol = Symbol.for('mongoose:default'); + +require('./helpers/printJestWarning'); + +const objectIdHexRegexp = /^[0-9A-Fa-f]{24}$/; + +const { AsyncLocalStorage } = require('node:async_hooks'); + +/** + * Mongoose constructor. + * + * The exports object of the `mongoose` module is an instance of this class. + * Most apps will only use this one instance. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * mongoose instanceof mongoose.Mongoose; // true + * + * // Create a new Mongoose instance with its own `connect()`, `set()`, `model()`, etc. + * const m = new mongoose.Mongoose(); + * + * @api public + * @param {Object} options see [`Mongoose#set()` docs](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.set()) + */ +function Mongoose(options) { + this.connections = []; + this.nextConnectionId = 0; + this.models = {}; + this.events = new EventEmitter(); + this.__driver = driver.get(); + // default global options + this.options = Object.assign({ + pluralization: true, + autoIndex: true, + autoCreate: true, + autoSearchIndex: false + }, options); + const createInitialConnection = utils.getOption('createInitialConnection', this.options) ?? true; + if (createInitialConnection && this.__driver != null) { + const conn = this.createConnection(); // default connection + conn.models = this.models; + } + + if (this.options.pluralization) { + this._pluralize = legacyPluralize; + } + + // If a user creates their own Mongoose instance, give them a separate copy + // of the `Schema` constructor so they get separate custom types. (gh-6933) + if (!options || !options[defaultMongooseSymbol]) { + const _this = this; + this.Schema = function() { + this.base = _this; + return Schema.apply(this, arguments); + }; + this.Schema.prototype = Object.create(Schema.prototype); + + Object.assign(this.Schema, Schema); + this.Schema.base = this; + this.Schema.Types = Object.assign({}, Schema.Types); + } else { + // Hack to work around babel's strange behavior with + // `import mongoose, { Schema } from 'mongoose'`. Because `Schema` is not + // an own property of a Mongoose global, Schema will be undefined. See gh-5648 + for (const key of ['Schema', 'model']) { + this[key] = Mongoose.prototype[key]; + } + } + this.Schema.prototype.base = this; + + if (options?.transactionAsyncLocalStorage) { + this.transactionAsyncLocalStorage = new AsyncLocalStorage(); + } + + Object.defineProperty(this, 'plugins', { + configurable: false, + enumerable: true, + writable: false, + value: Object.values(builtinPlugins).map(plugin => ([plugin, { deduplicate: true }])) + }); +} + +Mongoose.prototype.cast = cast; +/** + * Expose connection states for user-land + * + * @memberOf Mongoose + * @property STATES + * @api public + */ +Mongoose.prototype.STATES = STATES; + +/** + * Expose connection states for user-land + * + * @memberOf Mongoose + * @property ConnectionStates + * @api public + */ +Mongoose.prototype.ConnectionStates = STATES; + +/** + * Object with `get()` and `set()` containing the underlying driver this Mongoose instance + * uses to communicate with the database. A driver is a Mongoose-specific interface that defines functions + * like `find()`. + * + * @deprecated + * @memberOf Mongoose + * @property driver + * @api public + */ + +Mongoose.prototype.driver = driver; + +/** + * Overwrites the current driver used by this Mongoose instance. A driver is a + * Mongoose-specific interface that defines functions like `find()`. + * + * @memberOf Mongoose + * @method setDriver + * @api public + */ + +Mongoose.prototype.setDriver = function setDriver(driver) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + if (_mongoose.__driver === driver) { + return _mongoose; + } + + const openConnection = _mongoose.connections && _mongoose.connections.find(conn => conn.readyState !== STATES.disconnected); + if (openConnection) { + const msg = 'Cannot modify Mongoose driver if a connection is already open. ' + + 'Call `mongoose.disconnect()` before modifying the driver'; + throw new MongooseError(msg); + } + _mongoose.__driver = driver; + + const Connection = driver.Connection; + const oldDefaultConnection = _mongoose.connections[0]; + _mongoose.connections = [new Connection(_mongoose)]; + _mongoose.connections[0].models = _mongoose.models; + if (oldDefaultConnection == null) { + return _mongoose; + } + + // Update all models that pointed to the old default connection to + // the new default connection, including collections + for (const model of Object.values(_mongoose.models)) { + if (model.db !== oldDefaultConnection) { + continue; + } + model.$__updateConnection(_mongoose.connections[0]); + } + + return _mongoose; +}; + +/** + * Sets mongoose options + * + * `key` can be used a object to set multiple options at once. + * If a error gets thrown for one option, other options will still be evaluated. + * + * #### Example: + * + * mongoose.set('test', value) // sets the 'test' option to `value` + * + * mongoose.set('debug', true) // enable logging collection methods + arguments to the console/file + * + * mongoose.set('debug', function(collectionName, methodName, ...methodArgs) {}); // use custom function to log collection methods + arguments + * + * mongoose.set({ debug: true, autoIndex: false }); // set multiple options at once + * + * Currently supported options are: + * - `allowDiskUse`: Set to `true` to set `allowDiskUse` to true to all aggregation operations by default. + * - `applyPluginsToChildSchemas`: `true` by default. Set to false to skip applying global plugins to child schemas + * - `applyPluginsToDiscriminators`: `false` by default. Set to true to apply global plugins to discriminator schemas. This typically isn't necessary because plugins are applied to the base schema and discriminators copy all middleware, methods, statics, and properties from the base schema. + * - `autoCreate`: Set to `true` to make Mongoose call [`Model.createCollection()`](https://mongoosejs.com/docs/api/model.html#Model.createCollection()) automatically when you create a model with `mongoose.model()` or `conn.model()`. This is useful for testing transactions, change streams, and other features that require the collection to exist. + * - `autoIndex`: `true` by default. Set to false to disable automatic index creation for all models associated with this Mongoose instance. + * - `bufferCommands`: enable/disable mongoose's buffering mechanism for all connections and models + * - `bufferTimeoutMS`: If bufferCommands is on, this option sets the maximum amount of time Mongoose buffering will wait before throwing an error. If not specified, Mongoose will use 10000 (10 seconds). + * - `cloneSchemas`: `false` by default. Set to `true` to `clone()` all schemas before compiling into a model. + * - `debug`: If `true`, prints the operations mongoose sends to MongoDB to the console. If a writable stream is passed, it will log to that stream, without colorization. If a callback function is passed, it will receive the collection name, the method name, then all arguments passed to the method. For example, if you wanted to replicate the default logging, you could output from the callback `Mongoose: ${collectionName}.${methodName}(${methodArgs.join(', ')})`. + * - `id`: If `true`, adds a `id` virtual to all schemas unless overwritten on a per-schema basis. + * - `timestamps.createdAt.immutable`: `true` by default. If `false`, it will change the `createdAt` field to be [`immutable: false`](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.immutable) which means you can update the `createdAt` + * - `maxTimeMS`: If set, attaches [maxTimeMS](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/) to every query + * - `objectIdGetter`: `true` by default. Mongoose adds a getter to MongoDB ObjectId's called `_id` that returns `this` for convenience with populate. Set this to false to remove the getter. + * - `overwriteModels`: Set to `true` to default to overwriting models with the same name when calling `mongoose.model()`, as opposed to throwing an `OverwriteModelError`. + * - `returnOriginal`: If `false`, changes the default `returnOriginal` option to `findOneAndUpdate()`, `findByIdAndUpdate`, and `findOneAndReplace()` to false. This is equivalent to setting the `new` option to `true` for `findOneAndX()` calls by default. Read our [`findOneAndUpdate()` tutorial](https://mongoosejs.com/docs/tutorials/findoneandupdate.html) for more information. + * - `runValidators`: `false` by default. Set to true to enable [update validators](https://mongoosejs.com/docs/validation.html#update-validators) for all validators by default. + * - `sanitizeFilter`: `false` by default. Set to true to enable the [sanitization of the query filters](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.sanitizeFilter()) against query selector injection attacks by wrapping any nested objects that have a property whose name starts with `$` in a `$eq`. + * - `selectPopulatedPaths`: `true` by default. Set to false to opt out of Mongoose adding all fields that you `populate()` to your `select()`. The schema-level option `selectPopulatedPaths` overwrites this one. + * - `strict`: `true` by default, may be `false`, `true`, or `'throw'`. Sets the default strict mode for schemas. + * - `strictQuery`: `false` by default. May be `false`, `true`, or `'throw'`. Sets the default [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas. + * - `toJSON`: `{ transform: true, flattenDecimals: true }` by default. Overwrites default objects to [`toJSON()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.toJSON()), for determining how Mongoose documents get serialized by `JSON.stringify()` + * - `toObject`: `{ transform: true, flattenDecimals: true }` by default. Overwrites default objects to [`toObject()`](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()) + * + * @param {String|Object} key The name of the option or a object of multiple key-value pairs + * @param {String|Function|Boolean} value The value of the option, unused if "key" is a object + * @returns {Mongoose} The used Mongoose instnace + * @api public + */ + +Mongoose.prototype.set = function(key, value) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + if (arguments.length === 1 && typeof key !== 'object') { + if (VALID_OPTIONS.indexOf(key) === -1) { + const error = new SetOptionError(); + error.addError(key, new SetOptionError.SetOptionInnerError(key)); + throw error; + } + + return _mongoose.options[key]; + } + + let options = {}; + + if (arguments.length === 2) { + options = { [key]: value }; + } + + if (arguments.length === 1 && typeof key === 'object') { + options = key; + } + + // array for errors to collect all errors for all key-value pairs, like ".validate" + let error = undefined; + + for (const [optionKey, optionValue] of Object.entries(options)) { + if (VALID_OPTIONS.indexOf(optionKey) === -1) { + if (!error) { + error = new SetOptionError(); + } + error.addError(optionKey, new SetOptionError.SetOptionInnerError(optionKey)); + continue; + } + + _mongoose.options[optionKey] = optionValue; + + if (optionKey === 'objectIdGetter') { + if (optionValue) { + Object.defineProperty(_mongoose.Types.ObjectId.prototype, '_id', { + enumerable: false, + configurable: true, + get: function() { + return this; + } + }); + } else { + delete _mongoose.Types.ObjectId.prototype._id; + } + } else if (optionKey === 'transactionAsyncLocalStorage') { + if (optionValue && !_mongoose.transactionAsyncLocalStorage) { + _mongoose.transactionAsyncLocalStorage = new AsyncLocalStorage(); + } else if (!optionValue && _mongoose.transactionAsyncLocalStorage) { + delete _mongoose.transactionAsyncLocalStorage; + } + } + } + + if (error) { + throw error; + } + + return _mongoose; +}; + +/** + * Gets mongoose options + * + * #### Example: + * + * mongoose.get('test') // returns the 'test' value + * + * @param {String} key + * @method get + * @api public + */ + +Mongoose.prototype.get = Mongoose.prototype.set; + +/** + * Creates a Connection instance. + * + * Each `connection` instance maps to a single database. This method is helpful when managing multiple db connections. + * + * + * _Options passed take precedence over options included in connection strings._ + * + * #### Example: + * + * // with mongodb:// URI + * db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port/database'); + * + * // and options + * const opts = { db: { native_parser: true }} + * db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port/database', opts); + * + * // replica sets + * db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port,anotherhost:port,yetanother:port/database'); + * + * // and options + * const opts = { replset: { strategy: 'ping', rs_name: 'testSet' }} + * db = mongoose.createConnection('mongodb://user:pass@127.0.0.1:port,anotherhost:port,yetanother:port/database', opts); + * + * // initialize now, connect later + * db = mongoose.createConnection(); + * db.openUri('127.0.0.1', 'database', port, [opts]); + * + * @param {String} uri mongodb URI to connect to + * @param {Object} [options] passed down to the [MongoDB driver's `connect()` function](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html), except for 4 mongoose-specific options explained below. + * @param {Boolean} [options.bufferCommands=true] Mongoose specific option. Set to false to [disable buffering](https://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection. + * @param {String} [options.dbName] The name of the database you want to use. If not provided, Mongoose uses the database name from connection string. + * @param {String} [options.user] username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility. + * @param {String} [options.pass] password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility. + * @param {Boolean} [options.autoIndex=true] Mongoose-specific option. Set to false to disable automatic index creation for all models associated with this connection. + * @param {Class} [options.promiseLibrary] Sets the [underlying driver's promise library](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html#promiseLibrary). + * @param {Number} [options.maxPoolSize=5] The maximum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs). + * @param {Number} [options.minPoolSize=1] The minimum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs). + * @param {Number} [options.socketTimeoutMS=0] How long the MongoDB driver will wait before killing a socket due to inactivity _after initial connection_. Defaults to 0, which means Node.js will not time out the socket due to inactivity. A socket may be inactive because of either no activity or a long-running operation. This option is passed to [Node.js `socket#setTimeout()` function](https://nodejs.org/api/net.html#net_socket_settimeout_timeout_callback) after the MongoDB driver successfully completes. + * @param {Number} [options.family=0] Passed transparently to [Node.js' `dns.lookup()`](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback) function. May be either `0`, `4`, or `6`. `4` means use IPv4 only, `6` means use IPv6 only, `0` means try both. + * @return {Connection} the created Connection object. Connections are not thenable, so you can't do `await mongoose.createConnection()`. To await use `mongoose.createConnection(uri).asPromise()` instead. + * @api public + */ + +Mongoose.prototype.createConnection = function(uri, options) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + const Connection = _mongoose.__driver.Connection; + const conn = new Connection(_mongoose); + _mongoose.connections.push(conn); + _mongoose.nextConnectionId++; + _mongoose.events.emit('createConnection', conn); + + if (arguments.length > 0) { + conn.openUri(uri, { ...options, _fireAndForget: true }); + } + + return conn; +}; + +/** + * Opens the default mongoose connection. + * + * #### Example: + * + * mongoose.connect('mongodb://user:pass@127.0.0.1:port/database'); + * + * // replica sets + * const uri = 'mongodb://user:pass@127.0.0.1:port,anotherhost:port,yetanother:port/mydatabase'; + * mongoose.connect(uri); + * + * // with options + * mongoose.connect(uri, options); + * + * // optional callback that gets fired when initial connection completed + * const uri = 'mongodb://nonexistent.domain:27000'; + * mongoose.connect(uri, function(error) { + * // if error is truthy, the initial connection failed. + * }) + * + * @param {String} uri mongodb URI to connect to + * @param {Object} [options] passed down to the [MongoDB driver's `connect()` function](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html), except for 4 mongoose-specific options explained below. + * @param {Boolean} [options.bufferCommands=true] Mongoose specific option. Set to false to [disable buffering](https://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection. + * @param {Number} [options.bufferTimeoutMS=10000] Mongoose specific option. If `bufferCommands` is true, Mongoose will throw an error after `bufferTimeoutMS` if the operation is still buffered. + * @param {String} [options.dbName] The name of the database we want to use. If not provided, use database name from connection string. + * @param {String} [options.user] username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility. + * @param {String} [options.pass] password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility. + * @param {Number} [options.maxPoolSize=100] The maximum number of sockets the MongoDB driver will keep open for this connection. Keep in mind that MongoDB only allows one operation per socket at a time, so you may want to increase this if you find you have a few slow queries that are blocking faster queries from proceeding. See [Slow Trains in MongoDB and Node.js](https://thecodebarbarian.com/slow-trains-in-mongodb-and-nodejs). + * @param {Number} [options.minPoolSize=0] The minimum number of sockets the MongoDB driver will keep open for this connection. + * @param {Number} [options.serverSelectionTimeoutMS] If `useUnifiedTopology = true`, the MongoDB driver will try to find a server to send any given operation to, and keep retrying for `serverSelectionTimeoutMS` milliseconds before erroring out. If not set, the MongoDB driver defaults to using `30000` (30 seconds). + * @param {Number} [options.heartbeatFrequencyMS] If `useUnifiedTopology = true`, the MongoDB driver sends a heartbeat every `heartbeatFrequencyMS` to check on the status of the connection. A heartbeat is subject to `serverSelectionTimeoutMS`, so the MongoDB driver will retry failed heartbeats for up to 30 seconds by default. Mongoose only emits a `'disconnected'` event after a heartbeat has failed, so you may want to decrease this setting to reduce the time between when your server goes down and when Mongoose emits `'disconnected'`. We recommend you do **not** set this setting below 1000, too many heartbeats can lead to performance degradation. + * @param {Boolean} [options.autoIndex=true] Mongoose-specific option. Set to false to disable automatic index creation for all models associated with this connection. + * @param {Class} [options.promiseLibrary] Sets the [underlying driver's promise library](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/MongoClientOptions.html#promiseLibrary). + * @param {Number} [options.socketTimeoutMS=0] How long the MongoDB driver will wait before killing a socket due to inactivity _after initial connection_. A socket may be inactive because of either no activity or a long-running operation. `socketTimeoutMS` defaults to 0, which means Node.js will not time out the socket due to inactivity. This option is passed to [Node.js `socket#setTimeout()` function](https://nodejs.org/api/net.html#net_socket_settimeout_timeout_callback) after the MongoDB driver successfully completes. + * @param {Number} [options.family=0] Passed transparently to [Node.js' `dns.lookup()`](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback) function. May be either `0`, `4`, or `6`. `4` means use IPv4 only, `6` means use IPv6 only, `0` means try both. + * @param {Boolean} [options.autoCreate=false] Set to `true` to make Mongoose automatically call `createCollection()` on every model created on this connection. + * @param {Function} [callback] + * @see Mongoose#createConnection https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection() + * @api public + * @return {Promise} resolves to `this` if connection succeeded + */ + +Mongoose.prototype.connect = async function connect(uri, options) { + if (typeof options === 'function' || (arguments.length >= 3 && typeof arguments[2] === 'function')) { + throw new MongooseError('Mongoose.prototype.connect() no longer accepts a callback'); + } + + const _mongoose = this instanceof Mongoose ? this : mongoose; + const conn = _mongoose.connection; + + return conn.openUri(uri, options).then(() => _mongoose); +}; + +/** + * Runs `.close()` on all connections in parallel. + * + * @return {Promise} resolves when all connections are closed, or rejects with the first error that occurred. + * @api public + */ + +Mongoose.prototype.disconnect = async function disconnect() { + if (arguments.length >= 1 && typeof arguments[0] === 'function') { + throw new MongooseError('Mongoose.prototype.disconnect() no longer accepts a callback'); + } + + const _mongoose = this instanceof Mongoose ? this : mongoose; + + const remaining = _mongoose.connections.length; + if (remaining <= 0) { + return; + } + await Promise.all(_mongoose.connections.map(conn => conn.close())); +}; + +/** + * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions) + * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/), + * and [transactions](https://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html). + * + * Calling `mongoose.startSession()` is equivalent to calling `mongoose.connection.startSession()`. + * Sessions are scoped to a connection, so calling `mongoose.startSession()` + * starts a session on the [default mongoose connection](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.connection). + * + * @param {Object} [options] see the [mongodb driver options](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html#startSession) + * @param {Boolean} [options.causalConsistency=true] set to false to disable causal consistency + * @param {Function} [callback] + * @return {Promise} promise that resolves to a MongoDB driver `ClientSession` + * @api public + */ + +Mongoose.prototype.startSession = function() { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + return _mongoose.connection.startSession.apply(_mongoose.connection, arguments); +}; + +/** + * Getter/setter around function for pluralizing collection names. + * + * @param {Function|null} [fn] overwrites the function used to pluralize collection names + * @return {Function|null} the current function used to pluralize collection names, defaults to the legacy function from `mongoose-legacy-pluralize`. + * @api public + */ + +Mongoose.prototype.pluralize = function(fn) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + if (arguments.length > 0) { + _mongoose._pluralize = fn; + } + return _mongoose._pluralize; +}; + +/** + * Defines a model or retrieves it. + * + * Models defined on the `mongoose` instance are available to all connection + * created by the same `mongoose` instance. + * + * If you call `mongoose.model()` with twice the same name but a different schema, + * you will get an `OverwriteModelError`. If you call `mongoose.model()` with + * the same name and same schema, you'll get the same schema back. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * + * // define an Actor model with this mongoose instance + * const schema = new Schema({ name: String }); + * mongoose.model('Actor', schema); + * + * // create a new connection + * const conn = mongoose.createConnection(..); + * + * // create Actor model + * const Actor = conn.model('Actor', schema); + * conn.model('Actor') === Actor; // true + * conn.model('Actor', schema) === Actor; // true, same schema + * conn.model('Actor', schema, 'actors') === Actor; // true, same schema and collection name + * + * // This throws an `OverwriteModelError` because the schema is different. + * conn.model('Actor', new Schema({ name: String })); + * + * _When no `collection` argument is passed, Mongoose uses the model name. If you don't like this behavior, either pass a collection name, use `mongoose.pluralize()`, or set your schemas collection name option._ + * + * #### Example: + * + * const schema = new Schema({ name: String }, { collection: 'actor' }); + * + * // or + * + * schema.set('collection', 'actor'); + * + * // or + * + * const collectionName = 'actor'; + * const M = mongoose.model('Actor', schema, collectionName); + * + * @param {String|Function} name model name or class extending Model + * @param {Schema} [schema] the schema to use. + * @param {String} [collection] name (optional, inferred from model name) + * @param {Object} [options] + * @param {Boolean} [options.overwriteModels=false] If true, overwrite existing models with the same name to avoid `OverwriteModelError` + * @return {Model} The model associated with `name`. Mongoose will create the model if it doesn't already exist. + * @api public + */ + +Mongoose.prototype.model = function(name, schema, collection, options) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + if (typeof schema === 'string') { + collection = schema; + schema = false; + } + + if (arguments.length === 1) { + const model = _mongoose.models[name]; + if (!model) { + throw new MongooseError.MissingSchemaError(name); + } + return model; + } + + if (utils.isObject(schema) && !(schema instanceof Schema)) { + schema = new Schema(schema); + } + if (schema && !(schema instanceof Schema)) { + throw new Error('The 2nd parameter to `mongoose.model()` should be a ' + + 'schema or a POJO'); + } + + // handle internal options from connection.model() + options = options || {}; + + const originalSchema = schema; + if (schema) { + if (_mongoose.get('cloneSchemas')) { + schema = schema.clone(); + } + _mongoose._applyPlugins(schema); + } + + // connection.model() may be passing a different schema for + // an existing model name. in this case don't read from cache. + const overwriteModels = _mongoose.options.hasOwnProperty('overwriteModels') ? + _mongoose.options.overwriteModels : + options.overwriteModels; + if (_mongoose.models.hasOwnProperty(name) && options.cache !== false && overwriteModels !== true) { + if (originalSchema && + originalSchema.instanceOfSchema && + originalSchema !== _mongoose.models[name].schema) { + throw new _mongoose.Error.OverwriteModelError(name); + } + if (collection && collection !== _mongoose.models[name].collection.name) { + // subclass current model with alternate collection + const model = _mongoose.models[name]; + schema = model.prototype.schema; + const sub = model.__subclass(_mongoose.connection, schema, collection); + // do not cache the sub model + return sub; + } + return _mongoose.models[name]; + } + if (schema == null) { + throw new _mongoose.Error.MissingSchemaError(name); + } + + const model = _mongoose._model(name, schema, collection, options); + _mongoose.connection.models[name] = model; + _mongoose.models[name] = model; + + return model; +}; + +/*! + * ignore + */ + +Mongoose.prototype._model = function(name, schema, collection, options) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + let model; + if (typeof name === 'function') { + model = name; + name = model.name; + if (!(model.prototype instanceof Model)) { + throw new _mongoose.Error('The provided class ' + name + ' must extend Model'); + } + } + + if (schema) { + if (_mongoose.get('cloneSchemas')) { + schema = schema.clone(); + } + _mongoose._applyPlugins(schema); + } + + // Apply relevant "global" options to the schema + if (schema == null || !('pluralization' in schema.options)) { + schema.options.pluralization = _mongoose.options.pluralization; + } + + if (!collection) { + collection = schema.get('collection') || + utils.toCollectionName(name, _mongoose.pluralize()); + } + + const connection = options.connection || _mongoose.connection; + model = _mongoose.Model.compile(model || name, schema, collection, connection, _mongoose); + // Errors handled internally, so safe to ignore error + model.init().catch(function $modelInitNoop() {}); + + connection.emit('model', model); + + if (schema._applyDiscriminators != null) { + for (const disc of schema._applyDiscriminators.keys()) { + const { + schema: discriminatorSchema, + options + } = schema._applyDiscriminators.get(disc); + model.discriminator(disc, discriminatorSchema, options); + } + } + + applyEmbeddedDiscriminators(schema); + + return model; +}; + +/** + * Removes the model named `name` from the default connection, if it exists. + * You can use this function to clean up any models you created in your tests to + * prevent OverwriteModelErrors. + * + * Equivalent to `mongoose.connection.deleteModel(name)`. + * + * #### Example: + * + * mongoose.model('User', new Schema({ name: String })); + * console.log(mongoose.model('User')); // Model object + * mongoose.deleteModel('User'); + * console.log(mongoose.model('User')); // undefined + * + * // Usually useful in a Mocha `afterEach()` hook + * afterEach(function() { + * mongoose.deleteModel(/.+/); // Delete every model + * }); + * + * @api public + * @param {String|RegExp} name if string, the name of the model to remove. If regexp, removes all models whose name matches the regexp. + * @return {Mongoose} this + */ + +Mongoose.prototype.deleteModel = function(name) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + _mongoose.connection.deleteModel(name); + delete _mongoose.models[name]; + return _mongoose; +}; + +/** + * Returns an array of model names created on this instance of Mongoose. + * + * #### Note: + * + * _Does not include names of models created using `connection.model()`._ + * + * @api public + * @return {Array} + */ + +Mongoose.prototype.modelNames = function() { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + const names = Object.keys(_mongoose.models); + return names; +}; + +/** + * Applies global plugins to `schema`. + * + * @param {Schema} schema + * @api private + */ + +Mongoose.prototype._applyPlugins = function(schema, options) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + options = options || {}; + options.applyPluginsToDiscriminators = _mongoose.options && _mongoose.options.applyPluginsToDiscriminators || false; + options.applyPluginsToChildSchemas = typeof (_mongoose.options && _mongoose.options.applyPluginsToChildSchemas) === 'boolean' ? + _mongoose.options.applyPluginsToChildSchemas : + true; + applyPlugins(schema, _mongoose.plugins, options, '$globalPluginsApplied'); +}; + +/** + * Declares a global plugin executed on all Schemas. + * + * Equivalent to calling `.plugin(fn)` on each Schema you create. + * + * @param {Function} fn plugin callback + * @param {Object} [opts] optional options + * @return {Mongoose} this + * @see plugins https://mongoosejs.com/docs/plugins.html + * @api public + */ + +Mongoose.prototype.plugin = function(fn, opts) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + + _mongoose.plugins.push([fn, opts]); + return _mongoose; +}; + +/** + * The Mongoose module's default connection. Equivalent to `mongoose.connections[0]`, see [`connections`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.connections). + * + * #### Example: + * + * const mongoose = require('mongoose'); + * mongoose.connect(...); + * mongoose.connection.on('error', cb); + * + * This is the connection used by default for every model created using [mongoose.model](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.model()). + * + * To create a new connection, use [`createConnection()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()). + * + * @memberOf Mongoose + * @instance + * @property {Connection} connection + * @api public + */ + +Mongoose.prototype.__defineGetter__('connection', function() { + return this.connections[0]; +}); + +Mongoose.prototype.__defineSetter__('connection', function(v) { + if (v instanceof this.__driver.Connection) { + this.connections[0] = v; + this.models = v.models; + } +}); + +/** + * An array containing all [connections](connection.html) associated with this + * Mongoose instance. By default, there is 1 connection. Calling + * [`createConnection()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()) adds a connection + * to this array. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * mongoose.connections.length; // 1, just the default connection + * mongoose.connections[0] === mongoose.connection; // true + * + * mongoose.createConnection('mongodb://127.0.0.1:27017/test'); + * mongoose.connections.length; // 2 + * + * @memberOf Mongoose + * @instance + * @property {Array} connections + * @api public + */ + +Mongoose.prototype.connections; + +/** + * An integer containing the value of the next connection id. Calling + * [`createConnection()`](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.createConnection()) increments + * this value. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * mongoose.createConnection(); // id `0`, `nextConnectionId` becomes `1` + * mongoose.createConnection(); // id `1`, `nextConnectionId` becomes `2` + * mongoose.connections[0].destroy() // Removes connection with id `0` + * mongoose.createConnection(); // id `2`, `nextConnectionId` becomes `3` + * + * @memberOf Mongoose + * @instance + * @property {Number} nextConnectionId + * @api private + */ + +Mongoose.prototype.nextConnectionId; + +/** + * The Mongoose Aggregate constructor + * + * @method Aggregate + * @api public + */ + +Mongoose.prototype.Aggregate = Aggregate; + +/** + * The Mongoose Collection constructor + * + * @memberOf Mongoose + * @instance + * @method Collection + * @api public + */ + +Object.defineProperty(Mongoose.prototype, 'Collection', { + get: function() { + return this.__driver.Collection; + }, + set: function(Collection) { + this.__driver.Collection = Collection; + } +}); + +/** + * The Mongoose [Connection](https://mongoosejs.com/docs/api/connection.html#Connection()) constructor + * + * @memberOf Mongoose + * @instance + * @method Connection + * @api public + */ + +Object.defineProperty(Mongoose.prototype, 'Connection', { + get: function() { + return this.__driver.Connection; + }, + set: function(Connection) { + if (Connection === this.__driver.Connection) { + return; + } + + this.__driver.Connection = Connection; + } +}); + +/** + * The Mongoose version + * + * #### Example: + * + * console.log(mongoose.version); // '5.x.x' + * + * @property version + * @api public + */ + +Mongoose.prototype.version = pkg.version; + +/** + * The Mongoose constructor + * + * The exports of the mongoose module is an instance of this class. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * const mongoose2 = new mongoose.Mongoose(); + * + * @method Mongoose + * @api public + */ + +Mongoose.prototype.Mongoose = Mongoose; + +/** + * The Mongoose [Schema](https://mongoosejs.com/docs/api/schema.html#Schema()) constructor + * + * #### Example: + * + * const mongoose = require('mongoose'); + * const Schema = mongoose.Schema; + * const CatSchema = new Schema(..); + * + * @method Schema + * @api public + */ + +Mongoose.prototype.Schema = Schema; + +/** + * The Mongoose [SchemaType](https://mongoosejs.com/docs/api/schematype.html#SchemaType()) constructor + * + * @method SchemaType + * @api public + */ + +Mongoose.prototype.SchemaType = SchemaType; + +/** + * The various Mongoose SchemaTypes. + * + * #### Note: + * + * _Alias of mongoose.Schema.Types for backwards compatibility._ + * + * @property SchemaTypes + * @see Schema.SchemaTypes https://mongoosejs.com/docs/schematypes.html + * @api public + */ + +Mongoose.prototype.SchemaTypes = Schema.Types; + +/** + * The Mongoose [VirtualType](https://mongoosejs.com/docs/api/virtualtype.html#VirtualType()) constructor + * + * @method VirtualType + * @api public + */ + +Mongoose.prototype.VirtualType = VirtualType; + +/** + * The various Mongoose Types. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * const array = mongoose.Types.Array; + * + * #### Types: + * + * - [Array](https://mongoosejs.com/docs/schematypes.html#arrays) + * - [Buffer](https://mongoosejs.com/docs/schematypes.html#buffers) + * - [Embedded](https://mongoosejs.com/docs/schematypes.html#schemas) + * - [DocumentArray](https://mongoosejs.com/docs/api/documentarraypath.html) + * - [Decimal128](https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.Decimal128) + * - [ObjectId](https://mongoosejs.com/docs/schematypes.html#objectids) + * - [Map](https://mongoosejs.com/docs/schematypes.html#maps) + * - [Subdocument](https://mongoosejs.com/docs/schematypes.html#schemas) + * + * Using this exposed access to the `ObjectId` type, we can construct ids on demand. + * + * const ObjectId = mongoose.Types.ObjectId; + * const id1 = new ObjectId; + * + * @property Types + * @api public + */ + +Mongoose.prototype.Types = Types; + +/** + * The Mongoose [Query](https://mongoosejs.com/docs/api/query.html#Query()) constructor. + * + * @method Query + * @api public + */ + +Mongoose.prototype.Query = Query; + +/** + * The Mongoose [Model](https://mongoosejs.com/docs/api/model.html#Model()) constructor. + * + * @method Model + * @api public + */ + +Mongoose.prototype.Model = Model; + +/** + * The Mongoose [Document](https://mongoosejs.com/docs/api/document.html#Document()) constructor. + * + * @method Document + * @api public + */ + +Mongoose.prototype.Document = Document; + +/** + * The Mongoose DocumentProvider constructor. Mongoose users should not have to + * use this directly + * + * @method DocumentProvider + * @api public + */ + +Mongoose.prototype.DocumentProvider = require('./documentProvider'); + +/** + * The Mongoose ObjectId [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for + * declaring paths in your schema that should be + * [MongoDB ObjectIds](https://www.mongodb.com/docs/manual/reference/method/ObjectId/). + * Do not use this to create a new ObjectId instance, use `mongoose.Types.ObjectId` + * instead. + * + * #### Example: + * + * const childSchema = new Schema({ parentId: mongoose.ObjectId }); + * + * @property ObjectId + * @api public + */ + +Mongoose.prototype.ObjectId = SchemaTypes.ObjectId; + +/** + * Returns true if Mongoose can cast the given value to an ObjectId, or + * false otherwise. + * + * #### Example: + * + * mongoose.isValidObjectId(new mongoose.Types.ObjectId()); // true + * mongoose.isValidObjectId('0123456789ab'); // true + * mongoose.isValidObjectId(6); // true + * mongoose.isValidObjectId(new User({ name: 'test' })); // true + * + * mongoose.isValidObjectId({ test: 42 }); // false + * + * @method isValidObjectId + * @param {Any} v + * @returns {boolean} true if `v` is something Mongoose can coerce to an ObjectId + * @api public + */ + +Mongoose.prototype.isValidObjectId = function(v) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + return _mongoose.Types.ObjectId.isValid(v); +}; + +/** + * Returns true if the given value is a Mongoose ObjectId (using `instanceof`) or if the + * given value is a 24 character hex string, which is the most commonly used string representation + * of an ObjectId. + * + * This function is similar to `isValidObjectId()`, but considerably more strict, because + * `isValidObjectId()` will return `true` for _any_ value that Mongoose can convert to an + * ObjectId. That includes Mongoose documents, any string of length 12, and any number. + * `isObjectIdOrHexString()` returns true only for `ObjectId` instances or 24 character hex + * strings, and will return false for numbers, documents, and strings of length 12. + * + * #### Example: + * + * mongoose.isObjectIdOrHexString(new mongoose.Types.ObjectId()); // true + * mongoose.isObjectIdOrHexString('62261a65d66c6be0a63c051f'); // true + * + * mongoose.isObjectIdOrHexString('0123456789ab'); // false + * mongoose.isObjectIdOrHexString(6); // false + * mongoose.isObjectIdOrHexString(new User({ name: 'test' })); // false + * mongoose.isObjectIdOrHexString({ test: 42 }); // false + * + * @method isObjectIdOrHexString + * @param {Any} v + * @returns {boolean} true if `v` is an ObjectId instance _or_ a 24 char hex string + * @api public + */ + +Mongoose.prototype.isObjectIdOrHexString = function(v) { + return isBsonType(v, 'ObjectId') || (typeof v === 'string' && objectIdHexRegexp.test(v)); +}; + +/** + * + * Syncs all the indexes for the models registered with this connection. + * + * @param {Object} options + * @param {Boolean} options.continueOnError `false` by default. If set to `true`, mongoose will not throw an error if one model syncing failed, and will return an object where the keys are the names of the models, and the values are the results/errors for each model. + * @return {Promise} Returns a Promise, when the Promise resolves the value is a list of the dropped indexes. + */ +Mongoose.prototype.syncIndexes = function(options) { + const _mongoose = this instanceof Mongoose ? this : mongoose; + return _mongoose.connection.syncIndexes(options); +}; + +/** + * The Mongoose Decimal128 [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for + * declaring paths in your schema that should be + * [128-bit decimal floating points](https://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-decimal.html). + * Do not use this to create a new Decimal128 instance, use `mongoose.Types.Decimal128` + * instead. + * + * #### Example: + * + * const vehicleSchema = new Schema({ fuelLevel: mongoose.Decimal128 }); + * + * @property Decimal128 + * @api public + */ + +Mongoose.prototype.Decimal128 = SchemaTypes.Decimal128; + +/** + * The Mongoose Mixed [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for + * declaring paths in your schema that Mongoose's change tracking, casting, + * and validation should ignore. + * + * #### Example: + * + * const schema = new Schema({ arbitrary: mongoose.Mixed }); + * + * @property Mixed + * @api public + */ + +Mongoose.prototype.Mixed = SchemaTypes.Mixed; + +/** + * The Mongoose Date [SchemaType](https://mongoosejs.com/docs/schematypes.html). + * + * #### Example: + * + * const schema = new Schema({ test: Date }); + * schema.path('test') instanceof mongoose.Date; // true + * + * @property Date + * @api public + */ + +Mongoose.prototype.Date = SchemaTypes.Date; + +/** + * The Mongoose Number [SchemaType](https://mongoosejs.com/docs/schematypes.html). Used for + * declaring paths in your schema that Mongoose should cast to numbers. + * + * #### Example: + * + * const schema = new Schema({ num: mongoose.Number }); + * // Equivalent to: + * const schema = new Schema({ num: 'number' }); + * + * @property Number + * @api public + */ + +Mongoose.prototype.Number = SchemaTypes.Number; + +/** + * The [MongooseError](https://mongoosejs.com/docs/api/error.html#Error()) constructor. + * + * @method Error + * @api public + */ + +Mongoose.prototype.Error = require('./error/index'); +Mongoose.prototype.MongooseError = require('./error/mongooseError'); + +/** + * Mongoose uses this function to get the current time when setting + * [timestamps](https://mongoosejs.com/docs/guide.html#timestamps). You may stub out this function + * using a tool like [Sinon](https://www.npmjs.com/package/sinon) for testing. + * + * @method now + * @returns Date the current time + * @api public + */ + +Mongoose.prototype.now = function now() { return new Date(); }; + +/** + * The Mongoose CastError constructor + * + * @method CastError + * @param {String} type The name of the type + * @param {Any} value The value that failed to cast + * @param {String} path The path `a.b.c` in the doc where this cast error occurred + * @param {Error} [reason] The original error that was thrown + * @api public + */ + +Mongoose.prototype.CastError = require('./error/cast'); + +/** + * The constructor used for schematype options + * + * @method SchemaTypeOptions + * @api public + */ + +Mongoose.prototype.SchemaTypeOptions = require('./options/schemaTypeOptions'); + +/** + * The [mquery](https://github.com/aheckmann/mquery) query builder Mongoose uses. + * + * @property mquery + * @api public + */ + +Mongoose.prototype.mquery = require('mquery'); + +/** + * Sanitizes query filters against [query selector injection attacks](https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html) + * by wrapping any nested objects that have a property whose name starts with `$` in a `$eq`. + * + * ```javascript + * const obj = { username: 'val', pwd: { $ne: null } }; + * sanitizeFilter(obj); + * obj; // { username: 'val', pwd: { $eq: { $ne: null } } }); + * ``` + * + * @method sanitizeFilter + * @param {Object} filter + * @returns Object the sanitized object + * @api public + */ + +Mongoose.prototype.sanitizeFilter = sanitizeFilter; + +/** + * Tells `sanitizeFilter()` to skip the given object when filtering out potential [query selector injection attacks](https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html). + * Use this method when you have a known query selector that you want to use. + * + * ```javascript + * const obj = { username: 'val', pwd: trusted({ $type: 'string', $eq: 'my secret' }) }; + * sanitizeFilter(obj); + * + * // Note that `sanitizeFilter()` did not add `$eq` around `$type`. + * obj; // { username: 'val', pwd: { $type: 'string', $eq: 'my secret' } }); + * ``` + * + * @method trusted + * @param {Object} obj + * @returns Object the passed in object + * @api public + */ + +Mongoose.prototype.trusted = trusted; + +/** + * Use this function in `pre()` middleware to skip calling the wrapped function. + * + * #### Example: + * + * schema.pre('save', function() { + * // Will skip executing `save()`, but will execute post hooks as if + * // `save()` had executed with the result `{ matchedCount: 0 }` + * return mongoose.skipMiddlewareFunction({ matchedCount: 0 }); + * }); + * + * @method skipMiddlewareFunction + * @param {any} result + * @api public + */ + +Mongoose.prototype.skipMiddlewareFunction = Kareem.skipWrappedFunction; + +/** + * Use this function in `post()` middleware to replace the result + * + * #### Example: + * + * schema.post('find', function(res) { + * // Normally you have to modify `res` in place. But with + * // `overwriteMiddlewarResult()`, you can make `find()` return a + * // completely different value. + * return mongoose.overwriteMiddlewareResult(res.filter(doc => !doc.isDeleted)); + * }); + * + * @method overwriteMiddlewareResult + * @param {any} result + * @api public + */ + +Mongoose.prototype.overwriteMiddlewareResult = Kareem.overwriteResult; + +/** + * Takes in an object and deletes any keys from the object whose values + * are strictly equal to `undefined`. + * This function is useful for query filters because Mongoose treats + * `TestModel.find({ name: undefined })` as `TestModel.find({ name: null })`. + * + * #### Example: + * + * const filter = { name: 'John', age: undefined, status: 'active' }; + * mongoose.omitUndefined(filter); // { name: 'John', status: 'active' } + * filter; // { name: 'John', status: 'active' } + * + * await UserModel.findOne(mongoose.omitUndefined(filter)); + * + * @method omitUndefined + * @param {Object} [val] the object to remove undefined keys from + * @returns {Object} the object passed in + * @api public + */ + +Mongoose.prototype.omitUndefined = require('./helpers/omitUndefined'); + +/** + * The exports object is an instance of Mongoose. + * + * @api private + */ + +const mongoose = module.exports = exports = new Mongoose({ + [defaultMongooseSymbol]: true +}); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options.js new file mode 100644 index 000000000..3bae58e12 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options.js @@ -0,0 +1,16 @@ +'use strict'; + +/*! + * ignore + */ + +exports.internalToObjectOptions = { + transform: false, + virtuals: false, + getters: false, + _skipDepopulateTopLevel: true, + depopulate: true, + flattenDecimals: false, + useProjection: false, + versionKey: true +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/populateOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/populateOptions.js new file mode 100644 index 000000000..ad743fe0f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/populateOptions.js @@ -0,0 +1,36 @@ +'use strict'; + +const clone = require('../helpers/clone'); + +class PopulateOptions { + constructor(obj) { + this._docs = {}; + this._childDocs = []; + + if (obj == null) { + return; + } + obj = clone(obj); + Object.assign(this, obj); + if (typeof obj.subPopulate === 'object') { + this.populate = obj.subPopulate; + } + + + if (obj.perDocumentLimit != null && obj.limit != null) { + throw new Error('Can not use `limit` and `perDocumentLimit` at the same time. Path: `' + obj.path + '`.'); + } + } +} + +/** + * The connection used to look up models by name. If not specified, Mongoose + * will default to using the connection associated with the model in + * `PopulateOptions#model`. + * + * @memberOf PopulateOptions + * @property {Connection} connection + * @api public + */ + +module.exports = PopulateOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/propertyOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/propertyOptions.js new file mode 100644 index 000000000..cb95f35e8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/propertyOptions.js @@ -0,0 +1,8 @@ +'use strict'; + +module.exports = Object.freeze({ + enumerable: true, + configurable: true, + writable: true, + value: void 0 +}); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/saveOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/saveOptions.js new file mode 100644 index 000000000..66c1608b1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/saveOptions.js @@ -0,0 +1,14 @@ +'use strict'; + +const clone = require('../helpers/clone'); + +class SaveOptions { + constructor(obj) { + if (obj == null) { + return; + } + Object.assign(this, clone(obj)); + } +} + +module.exports = SaveOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaArrayOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaArrayOptions.js new file mode 100644 index 000000000..01f4fb78c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaArrayOptions.js @@ -0,0 +1,78 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on an Array schematype. + * + * #### Example: + * + * const schema = new Schema({ tags: [String] }); + * schema.path('tags').options; // SchemaArrayOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaArrayOptions + */ + +class SchemaArrayOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If this is an array of strings, an array of allowed values for this path. + * Throws an error if this array isn't an array of strings. + * + * @api public + * @property enum + * @memberOf SchemaArrayOptions + * @type {Array} + * @instance + */ + +Object.defineProperty(SchemaArrayOptions.prototype, 'enum', opts); + +/** + * If set, specifies the type of this array's values. Equivalent to setting + * `type` to an array whose first element is `of`. + * + * #### Example: + * + * // `arr` is an array of numbers. + * new Schema({ arr: [Number] }); + * // Equivalent way to define `arr` as an array of numbers + * new Schema({ arr: { type: Array, of: Number } }); + * + * @api public + * @property of + * @memberOf SchemaArrayOptions + * @type {Function|String} + * @instance + */ + +Object.defineProperty(SchemaArrayOptions.prototype, 'of', opts); + +/** + * If set to `false`, will always deactivate casting non-array values to arrays. + * If set to `true`, will cast non-array values to arrays if `init` and `SchemaArray.options.castNonArrays` are also `true` + * + * #### Example: + * + * const Model = db.model('Test', new Schema({ x1: { castNonArrays: false, type: [String] } })); + * const doc = new Model({ x1: "some non-array value" }); + * await doc.validate(); // Errors with "CastError" + * + * @api public + * @property castNonArrays + * @memberOf SchemaArrayOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(SchemaArrayOptions.prototype, 'castNonArrays', opts); + +/*! + * ignore + */ + +module.exports = SchemaArrayOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaBufferOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaBufferOptions.js new file mode 100644 index 000000000..bfc12cb45 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaBufferOptions.js @@ -0,0 +1,38 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on a Buffer schematype. + * + * #### Example: + * + * const schema = new Schema({ bitmap: Buffer }); + * schema.path('bitmap').options; // SchemaBufferOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaBufferOptions + */ + +class SchemaBufferOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * Set the default subtype for this buffer. + * + * @api public + * @property subtype + * @memberOf SchemaBufferOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(SchemaBufferOptions.prototype, 'subtype', opts); + +/*! + * ignore + */ + +module.exports = SchemaBufferOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaDateOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaDateOptions.js new file mode 100644 index 000000000..a4ef62bb5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaDateOptions.js @@ -0,0 +1,71 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on a Date schematype. + * + * #### Example: + * + * const schema = new Schema({ startedAt: Date }); + * schema.path('startedAt').options; // SchemaDateOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaDateOptions + */ + +class SchemaDateOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If set, Mongoose adds a validator that checks that this path is after the + * given `min`. + * + * @api public + * @property min + * @memberOf SchemaDateOptions + * @type {Date} + * @instance + */ + +Object.defineProperty(SchemaDateOptions.prototype, 'min', opts); + +/** + * If set, Mongoose adds a validator that checks that this path is before the + * given `max`. + * + * @api public + * @property max + * @memberOf SchemaDateOptions + * @type {Date} + * @instance + */ + +Object.defineProperty(SchemaDateOptions.prototype, 'max', opts); + +/** + * If set, Mongoose creates a TTL index on this path. + * + * mongo TTL index `expireAfterSeconds` value will take 'expires' value expressed in seconds. + * + * #### Example: + * + * const schema = new Schema({ "expireAt": { type: Date, expires: 11 } }); + * // if 'expireAt' is set, then document expires at expireAt + 11 seconds + * + * @api public + * @property expires + * @memberOf SchemaDateOptions + * @type {Date} + * @instance + */ + +Object.defineProperty(SchemaDateOptions.prototype, 'expires', opts); + +/*! + * ignore + */ + +module.exports = SchemaDateOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaDocumentArrayOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaDocumentArrayOptions.js new file mode 100644 index 000000000..ae5b07b3c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaDocumentArrayOptions.js @@ -0,0 +1,68 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on an Document Array schematype. + * + * #### Example: + * + * const schema = new Schema({ users: [{ name: string }] }); + * schema.path('users').options; // SchemaDocumentArrayOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaDocumentOptions + */ + +class SchemaDocumentArrayOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If `true`, Mongoose will skip building any indexes defined in this array's schema. + * If not set, Mongoose will build all indexes defined in this array's schema. + * + * #### Example: + * + * const childSchema = Schema({ name: { type: String, index: true } }); + * // If `excludeIndexes` is `true`, Mongoose will skip building an index + * // on `arr.name`. Otherwise, Mongoose will build an index on `arr.name`. + * const parentSchema = Schema({ + * arr: { type: [childSchema], excludeIndexes: true } + * }); + * + * @api public + * @property excludeIndexes + * @memberOf SchemaDocumentArrayOptions + * @type {Array} + * @instance + */ + +Object.defineProperty(SchemaDocumentArrayOptions.prototype, 'excludeIndexes', opts); + +/** + * If set, overwrites the child schema's `_id` option. + * + * #### Example: + * + * const childSchema = Schema({ name: String }); + * const parentSchema = Schema({ + * child: { type: childSchema, _id: false } + * }); + * parentSchema.path('child').schema.options._id; // false + * + * @api public + * @property _id + * @memberOf SchemaDocumentArrayOptions + * @type {Array} + * @instance + */ + +Object.defineProperty(SchemaDocumentArrayOptions.prototype, '_id', opts); + +/*! + * ignore + */ + +module.exports = SchemaDocumentArrayOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaMapOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaMapOptions.js new file mode 100644 index 000000000..d6de6a4c7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaMapOptions.js @@ -0,0 +1,43 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on a Map schematype. + * + * #### Example: + * + * const schema = new Schema({ socialMediaHandles: { type: Map, of: String } }); + * schema.path('socialMediaHandles').options; // SchemaMapOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaMapOptions + */ + +class SchemaMapOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If set, specifies the type of this map's values. Mongoose will cast + * this map's values to the given type. + * + * If not set, Mongoose will not cast the map's values. + * + * #### Example: + * + * // Mongoose will cast `socialMediaHandles` values to strings + * const schema = new Schema({ socialMediaHandles: { type: Map, of: String } }); + * schema.path('socialMediaHandles').options.of; // String + * + * @api public + * @property of + * @memberOf SchemaMapOptions + * @type {Function|string} + * @instance + */ + +Object.defineProperty(SchemaMapOptions.prototype, 'of', opts); + +module.exports = SchemaMapOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaNumberOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaNumberOptions.js new file mode 100644 index 000000000..62a1b51a6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaNumberOptions.js @@ -0,0 +1,101 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on a Number schematype. + * + * #### Example: + * + * const schema = new Schema({ count: Number }); + * schema.path('count').options; // SchemaNumberOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaNumberOptions + */ + +class SchemaNumberOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If set, Mongoose adds a validator that checks that this path is at least the + * given `min`. + * + * @api public + * @property min + * @memberOf SchemaNumberOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(SchemaNumberOptions.prototype, 'min', opts); + +/** + * If set, Mongoose adds a validator that checks that this path is less than the + * given `max`. + * + * @api public + * @property max + * @memberOf SchemaNumberOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(SchemaNumberOptions.prototype, 'max', opts); + +/** + * If set, Mongoose adds a validator that checks that this path is strictly + * equal to one of the given values. + * + * #### Example: + * + * const schema = new Schema({ + * favoritePrime: { + * type: Number, + * enum: [3, 5, 7] + * } + * }); + * schema.path('favoritePrime').options.enum; // [3, 5, 7] + * + * @api public + * @property enum + * @memberOf SchemaNumberOptions + * @type {Array} + * @instance + */ + +Object.defineProperty(SchemaNumberOptions.prototype, 'enum', opts); + +/** + * Sets default [populate options](https://mongoosejs.com/docs/populate.html#query-conditions). + * + * #### Example: + * + * const schema = new Schema({ + * child: { + * type: Number, + * ref: 'Child', + * populate: { select: 'name' } + * } + * }); + * const Parent = mongoose.model('Parent', schema); + * + * // Automatically adds `.select('name')` + * Parent.findOne().populate('child'); + * + * @api public + * @property populate + * @memberOf SchemaNumberOptions + * @type {Object} + * @instance + */ + +Object.defineProperty(SchemaNumberOptions.prototype, 'populate', opts); + +/*! + * ignore + */ + +module.exports = SchemaNumberOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaObjectIdOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaObjectIdOptions.js new file mode 100644 index 000000000..2029c9de5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaObjectIdOptions.js @@ -0,0 +1,64 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on an ObjectId schematype. + * + * #### Example: + * + * const schema = new Schema({ testId: mongoose.ObjectId }); + * schema.path('testId').options; // SchemaObjectIdOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaObjectIdOptions + */ + +class SchemaObjectIdOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If truthy, uses Mongoose's default built-in ObjectId path. + * + * @api public + * @property auto + * @memberOf SchemaObjectIdOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(SchemaObjectIdOptions.prototype, 'auto', opts); + +/** + * Sets default [populate options](https://mongoosejs.com/docs/populate.html#query-conditions). + * + * #### Example: + * + * const schema = new Schema({ + * child: { + * type: 'ObjectId', + * ref: 'Child', + * populate: { select: 'name' } + * } + * }); + * const Parent = mongoose.model('Parent', schema); + * + * // Automatically adds `.select('name')` + * Parent.findOne().populate('child'); + * + * @api public + * @property populate + * @memberOf SchemaObjectIdOptions + * @type {Object} + * @instance + */ + +Object.defineProperty(SchemaObjectIdOptions.prototype, 'populate', opts); + +/*! + * ignore + */ + +module.exports = SchemaObjectIdOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaStringOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaStringOptions.js new file mode 100644 index 000000000..c5bd8ca69 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaStringOptions.js @@ -0,0 +1,138 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on a string schematype. + * + * #### Example: + * + * const schema = new Schema({ name: String }); + * schema.path('name').options; // SchemaStringOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaStringOptions + */ + +class SchemaStringOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * Array of allowed values for this path + * + * @api public + * @property enum + * @memberOf SchemaStringOptions + * @type {Array} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'enum', opts); + +/** + * Attach a validator that succeeds if the data string matches the given regular + * expression, and fails otherwise. + * + * @api public + * @property match + * @memberOf SchemaStringOptions + * @type {RegExp} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'match', opts); + +/** + * If truthy, Mongoose will add a custom setter that lowercases this string + * using JavaScript's built-in `String#toLowerCase()`. + * + * @api public + * @property lowercase + * @memberOf SchemaStringOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'lowercase', opts); + +/** + * If truthy, Mongoose will add a custom setter that removes leading and trailing + * whitespace using [JavaScript's built-in `String#trim()`](https://masteringjs.io/tutorials/fundamentals/trim-string). + * + * @api public + * @property trim + * @memberOf SchemaStringOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'trim', opts); + +/** + * If truthy, Mongoose will add a custom setter that uppercases this string + * using JavaScript's built-in [`String#toUpperCase()`](https://masteringjs.io/tutorials/fundamentals/uppercase). + * + * @api public + * @property uppercase + * @memberOf SchemaStringOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'uppercase', opts); + +/** + * If set, Mongoose will add a custom validator that ensures the given + * string's `length` is at least the given number. + * + * Mongoose supports two different spellings for this option: `minLength` and `minlength`. + * `minLength` is the recommended way to specify this option, but Mongoose also supports + * `minlength` (lowercase "l"). + * + * @api public + * @property minLength + * @memberOf SchemaStringOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'minLength', opts); +Object.defineProperty(SchemaStringOptions.prototype, 'minlength', opts); + +/** + * If set, Mongoose will add a custom validator that ensures the given + * string's `length` is at most the given number. + * + * Mongoose supports two different spellings for this option: `maxLength` and `maxlength`. + * `maxLength` is the recommended way to specify this option, but Mongoose also supports + * `maxlength` (lowercase "l"). + * + * @api public + * @property maxLength + * @memberOf SchemaStringOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'maxLength', opts); +Object.defineProperty(SchemaStringOptions.prototype, 'maxlength', opts); + +/** + * Sets default [populate options](https://mongoosejs.com/docs/populate.html#query-conditions). + * + * @api public + * @property populate + * @memberOf SchemaStringOptions + * @type {Object} + * @instance + */ + +Object.defineProperty(SchemaStringOptions.prototype, 'populate', opts); + +/*! + * ignore + */ + +module.exports = SchemaStringOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaSubdocumentOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaSubdocumentOptions.js new file mode 100644 index 000000000..07c906726 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaSubdocumentOptions.js @@ -0,0 +1,42 @@ +'use strict'; + +const SchemaTypeOptions = require('./schemaTypeOptions'); + +/** + * The options defined on a single nested schematype. + * + * #### Example: + * + * const schema = Schema({ child: Schema({ name: String }) }); + * schema.path('child').options; // SchemaSubdocumentOptions instance + * + * @api public + * @inherits SchemaTypeOptions + * @constructor SchemaSubdocumentOptions + */ + +class SchemaSubdocumentOptions extends SchemaTypeOptions {} + +const opts = require('./propertyOptions'); + +/** + * If set, overwrites the child schema's `_id` option. + * + * #### Example: + * + * const childSchema = Schema({ name: String }); + * const parentSchema = Schema({ + * child: { type: childSchema, _id: false } + * }); + * parentSchema.path('child').schema.options._id; // false + * + * @api public + * @property of + * @memberOf SchemaSubdocumentOptions + * @type {Function|string} + * @instance + */ + +Object.defineProperty(SchemaSubdocumentOptions.prototype, '_id', opts); + +module.exports = SchemaSubdocumentOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaTypeOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaTypeOptions.js new file mode 100644 index 000000000..cfe3de3cd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/schemaTypeOptions.js @@ -0,0 +1,244 @@ +'use strict'; + +const clone = require('../helpers/clone'); + +/** + * The options defined on a schematype. + * + * #### Example: + * + * const schema = new Schema({ name: String }); + * schema.path('name').options instanceof mongoose.SchemaTypeOptions; // true + * + * @api public + * @constructor SchemaTypeOptions + */ + +class SchemaTypeOptions { + constructor(obj) { + if (obj == null) { + return this; + } + Object.assign(this, clone(obj)); + } +} + +const opts = require('./propertyOptions'); + +/** + * The type to cast this path to. + * + * @api public + * @property type + * @memberOf SchemaTypeOptions + * @type {Function|String|Object} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'type', opts); + +/** + * Function or object describing how to validate this schematype. + * + * @api public + * @property validate + * @memberOf SchemaTypeOptions + * @type {Function|Object} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'validate', opts); + +/** + * Allows overriding casting logic for this individual path. If a string, the + * given string overwrites Mongoose's default cast error message. + * + * #### Example: + * + * const schema = new Schema({ + * num: { + * type: Number, + * cast: '{VALUE} is not a valid number' + * } + * }); + * + * // Throws 'CastError: "bad" is not a valid number' + * schema.path('num').cast('bad'); + * + * const Model = mongoose.model('Test', schema); + * const doc = new Model({ num: 'fail' }); + * const err = doc.validateSync(); + * + * err.errors['num']; // 'CastError: "fail" is not a valid number' + * + * @api public + * @property cast + * @memberOf SchemaTypeOptions + * @type {String} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'cast', opts); + +/** + * If true, attach a required validator to this path, which ensures this path + * cannot be set to a nullish value. If a function, Mongoose calls the + * function and only checks for nullish values if the function returns a truthy value. + * + * @api public + * @property required + * @memberOf SchemaTypeOptions + * @type {Function|Boolean} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'required', opts); + +/** + * The default value for this path. If a function, Mongoose executes the function + * and uses the return value as the default. + * + * @api public + * @property default + * @memberOf SchemaTypeOptions + * @type {Function|Any} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'default', opts); + +/** + * The model that `populate()` should use if populating this path. + * + * @api public + * @property ref + * @memberOf SchemaTypeOptions + * @type {Function|String} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'ref', opts); + +/** + * The path in the document that `populate()` should use to find the model + * to use. + * + * @api public + * @property ref + * @memberOf SchemaTypeOptions + * @type {Function|String} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'refPath', opts); + +/** + * Whether to include or exclude this path by default when loading documents + * using `find()`, `findOne()`, etc. + * + * @api public + * @property select + * @memberOf SchemaTypeOptions + * @type {Boolean|Number} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'select', opts); + +/** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will + * build an index on this path when the model is compiled. + * + * @api public + * @property index + * @memberOf SchemaTypeOptions + * @type {Boolean|Number|Object} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'index', opts); + +/** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose + * will build a unique index on this path when the + * model is compiled. [The `unique` option is **not** a validator](https://mongoosejs.com/docs/validation.html#the-unique-option-is-not-a-validator). + * + * @api public + * @property unique + * @memberOf SchemaTypeOptions + * @type {Boolean|Number} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'unique', opts); + +/** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will + * disallow changes to this path once the document + * is saved to the database for the first time. Read more about [immutability in Mongoose here](https://thecodebarbarian.com/whats-new-in-mongoose-5-6-immutable-properties.html). + * + * @api public + * @property immutable + * @memberOf SchemaTypeOptions + * @type {Function|Boolean} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'immutable', opts); + +/** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will + * build a sparse index on this path. + * + * @api public + * @property sparse + * @memberOf SchemaTypeOptions + * @type {Boolean|Number} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'sparse', opts); + +/** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose + * will build a text index on this path. + * + * @api public + * @property text + * @memberOf SchemaTypeOptions + * @type {Boolean|Number|Object} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'text', opts); + +/** + * Define a transform function for this individual schema type. + * Only called when calling `toJSON()` or `toObject()`. + * + * #### Example: + * + * const schema = Schema({ + * myDate: { + * type: Date, + * transform: v => v.getFullYear() + * } + * }); + * const Model = mongoose.model('Test', schema); + * + * const doc = new Model({ myDate: new Date('2019/06/01') }); + * doc.myDate instanceof Date; // true + * + * const res = doc.toObject({ transform: true }); + * res.myDate; // 2019 + * + * @api public + * @property transform + * @memberOf SchemaTypeOptions + * @type {Function} + * @instance + */ + +Object.defineProperty(SchemaTypeOptions.prototype, 'transform', opts); + +module.exports = SchemaTypeOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/options/virtualOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/virtualOptions.js new file mode 100644 index 000000000..c17c5a405 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/options/virtualOptions.js @@ -0,0 +1,164 @@ +'use strict'; + +const opts = require('./propertyOptions'); + +class VirtualOptions { + constructor(obj) { + Object.assign(this, obj); + + if (obj != null && obj.options != null) { + this.options = Object.assign({}, obj.options); + } + } +} + +/** + * Marks this virtual as a populate virtual, and specifies the model to + * use for populate. + * + * @api public + * @property ref + * @memberOf VirtualOptions + * @type {String|Model|Function} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'ref', opts); + +/** + * Marks this virtual as a populate virtual, and specifies the path that + * contains the name of the model to populate + * + * @api public + * @property refPath + * @memberOf VirtualOptions + * @type {String|Function} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'refPath', opts); + +/** + * The name of the property in the local model to match to `foreignField` + * in the foreign model. + * + * @api public + * @property localField + * @memberOf VirtualOptions + * @type {String|Function} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'localField', opts); + +/** + * The name of the property in the foreign model to match to `localField` + * in the local model. + * + * @api public + * @property foreignField + * @memberOf VirtualOptions + * @type {String|Function} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'foreignField', opts); + +/** + * Whether to populate this virtual as a single document (true) or an + * array of documents (false). + * + * @api public + * @property justOne + * @memberOf VirtualOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'justOne', opts); + +/** + * If true, populate just the number of documents where `localField` + * matches `foreignField`, as opposed to the documents themselves. + * + * If `count` is set, it overrides `justOne`. + * + * @api public + * @property count + * @memberOf VirtualOptions + * @type {Boolean} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'count', opts); + +/** + * Add an additional filter to populate, in addition to `localField` + * matches `foreignField`. + * + * @api public + * @property match + * @memberOf VirtualOptions + * @type {Object|Function} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'match', opts); + +/** + * Additional options to pass to the query used to `populate()`: + * + * - `sort` + * - `skip` + * - `limit` + * + * @api public + * @property options + * @memberOf VirtualOptions + * @type {Object} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'options', opts); + +/** + * If true, add a `skip` to the query used to `populate()`. + * + * @api public + * @property skip + * @memberOf VirtualOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'skip', opts); + +/** + * If true, add a `limit` to the query used to `populate()`. + * + * @api public + * @property limit + * @memberOf VirtualOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'limit', opts); + +/** + * The `limit` option for `populate()` has [some unfortunate edge cases](https://mongoosejs.com/docs/populate.html#query-conditions) + * when working with multiple documents, like `.find().populate()`. The + * `perDocumentLimit` option makes `populate()` execute a separate query + * for each document returned from `find()` to ensure each document + * gets up to `perDocumentLimit` populated docs if possible. + * + * @api public + * @property perDocumentLimit + * @memberOf VirtualOptions + * @type {Number} + * @instance + */ + +Object.defineProperty(VirtualOptions.prototype, 'perDocumentLimit', opts); + +module.exports = VirtualOptions; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/index.js new file mode 100644 index 000000000..a8a6c0442 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/index.js @@ -0,0 +1,6 @@ +'use strict'; + +exports.saveSubdocs = require('./saveSubdocs'); +exports.sharding = require('./sharding'); +exports.trackTransaction = require('./trackTransaction'); +exports.validateBeforeSave = require('./validateBeforeSave'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/saveSubdocs.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/saveSubdocs.js new file mode 100644 index 000000000..758acbbfe --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/saveSubdocs.js @@ -0,0 +1,66 @@ +'use strict'; + +const each = require('../helpers/each'); + +/*! + * ignore + */ + +module.exports = function saveSubdocs(schema) { + const unshift = true; + schema.s.hooks.pre('save', false, function saveSubdocsPreSave(next) { + if (this.$isSubdocument) { + next(); + return; + } + + const _this = this; + const subdocs = this.$getAllSubdocs(); + + if (!subdocs.length) { + next(); + return; + } + + each(subdocs, function(subdoc, cb) { + subdoc.$__schema.s.hooks.execPre('save', subdoc, function(err) { + cb(err); + }); + }, function(error) { + if (error) { + return _this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) { + next(error); + }); + } + next(); + }); + }, null, unshift); + + schema.s.hooks.post('save', function saveSubdocsPostSave(doc, next) { + if (this.$isSubdocument) { + next(); + return; + } + + const _this = this; + const subdocs = this.$getAllSubdocs(); + + if (!subdocs.length) { + next(); + return; + } + + each(subdocs, function(subdoc, cb) { + subdoc.$__schema.s.hooks.execPost('save', subdoc, [subdoc], function(err) { + cb(err); + }); + }, function(error) { + if (error) { + return _this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) { + next(error); + }); + } + next(); + }); + }, null, unshift); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/sharding.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/sharding.js new file mode 100644 index 000000000..7d905f31c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/sharding.js @@ -0,0 +1,83 @@ +'use strict'; + +const objectIdSymbol = require('../helpers/symbols').objectIdSymbol; +const utils = require('../utils'); + +/*! + * ignore + */ + +module.exports = function shardingPlugin(schema) { + schema.post('init', function shardingPluginPostInit() { + storeShard.call(this); + return this; + }); + schema.pre('save', function shardingPluginPreSave(next) { + applyWhere.call(this); + next(); + }); + schema.pre('remove', function shardingPluginPreRemove(next) { + applyWhere.call(this); + next(); + }); + schema.post('save', function shardingPluginPostSave() { + storeShard.call(this); + }); +}; + +/*! + * ignore + */ + +function applyWhere() { + let paths; + let len; + + if (this.$__.shardval) { + paths = Object.keys(this.$__.shardval); + len = paths.length; + + this.$where = this.$where || {}; + for (let i = 0; i < len; ++i) { + this.$where[paths[i]] = this.$__.shardval[paths[i]]; + } + } +} + +/*! + * ignore + */ + +module.exports.storeShard = storeShard; + +/*! + * ignore + */ + +function storeShard() { + // backwards compat + const key = this.$__schema.options.shardKey || this.$__schema.options.shardkey; + if (!utils.isPOJO(key)) { + return; + } + + const orig = this.$__.shardval = {}; + const paths = Object.keys(key); + const len = paths.length; + let val; + + for (let i = 0; i < len; ++i) { + val = this.$__getValue(paths[i]); + if (val == null) { + orig[paths[i]] = val; + } else if (utils.isMongooseObject(val)) { + orig[paths[i]] = val.toObject({ depopulate: true, _isNested: true }); + } else if (val instanceof Date || val[objectIdSymbol]) { + orig[paths[i]] = val; + } else if (typeof val.valueOf === 'function') { + orig[paths[i]] = val.valueOf(); + } else { + orig[paths[i]] = val; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/trackTransaction.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/trackTransaction.js new file mode 100644 index 000000000..af5c7c84d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/trackTransaction.js @@ -0,0 +1,92 @@ +'use strict'; + +const arrayAtomicsSymbol = require('../helpers/symbols').arrayAtomicsSymbol; +const sessionNewDocuments = require('../helpers/symbols').sessionNewDocuments; +const utils = require('../utils'); + +module.exports = function trackTransaction(schema) { + schema.pre('save', function trackTransactionPreSave() { + const session = this.$session(); + if (session == null) { + return; + } + if (session.transaction == null || session[sessionNewDocuments] == null) { + return; + } + + if (!session[sessionNewDocuments].has(this)) { + const initialState = {}; + if (this.isNew) { + initialState.isNew = true; + } + if (this.$__schema.options.versionKey) { + initialState.versionKey = this.get(this.$__schema.options.versionKey); + } + + initialState.modifiedPaths = new Set(Object.keys(this.$__.activePaths.getStatePaths('modify'))); + initialState.atomics = _getAtomics(this); + + session[sessionNewDocuments].set(this, initialState); + } else { + const state = session[sessionNewDocuments].get(this); + + for (const path of Object.keys(this.$__.activePaths.getStatePaths('modify'))) { + state.modifiedPaths.add(path); + } + state.atomics = _getAtomics(this, state.atomics); + } + }); +}; + +function _getAtomics(doc, previous) { + const pathToAtomics = new Map(); + previous = previous || new Map(); + + const pathsToCheck = Object.keys(doc.$__.activePaths.init).concat(Object.keys(doc.$__.activePaths.modify)); + + for (const path of pathsToCheck) { + const val = doc.$__getValue(path); + if (val != null && + Array.isArray(val) && + utils.isMongooseDocumentArray(val) && + val.length && + val[arrayAtomicsSymbol] != null && + Object.keys(val[arrayAtomicsSymbol]).length !== 0) { + const existing = previous.get(path) || {}; + pathToAtomics.set(path, mergeAtomics(existing, val[arrayAtomicsSymbol])); + } + } + + const dirty = doc.$__dirty(); + for (const dirt of dirty) { + const path = dirt.path; + + const val = dirt.value; + if (val != null && val[arrayAtomicsSymbol] != null && Object.keys(val[arrayAtomicsSymbol]).length !== 0) { + const existing = previous.get(path) || {}; + pathToAtomics.set(path, mergeAtomics(existing, val[arrayAtomicsSymbol])); + } + } + + return pathToAtomics; +} + +function mergeAtomics(destination, source) { + destination = destination || {}; + + if (source.$pullAll != null) { + destination.$pullAll = (destination.$pullAll || []).concat(source.$pullAll); + } + if (source.$push != null) { + destination.$push = destination.$push || {}; + destination.$push.$each = (destination.$push.$each || []).concat(source.$push.$each); + } + if (source.$addToSet != null) { + destination.$addToSet = (destination.$addToSet || []).concat(source.$addToSet); + } + if (source.$set != null) { + destination.$set = Array.isArray(source.$set) ? [...source.$set] : Object.assign({}, source.$set); + } + + return destination; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/validateBeforeSave.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/validateBeforeSave.js new file mode 100644 index 000000000..c55824184 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/plugins/validateBeforeSave.js @@ -0,0 +1,51 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function validateBeforeSave(schema) { + const unshift = true; + schema.pre('save', false, function validateBeforeSave(next, options) { + const _this = this; + // Nested docs have their own presave + if (this.$isSubdocument) { + return next(); + } + + const hasValidateBeforeSaveOption = options && + (typeof options === 'object') && + ('validateBeforeSave' in options); + + let shouldValidate; + if (hasValidateBeforeSaveOption) { + shouldValidate = !!options.validateBeforeSave; + } else { + shouldValidate = this.$__schema.options.validateBeforeSave; + } + + // Validate + if (shouldValidate) { + const hasValidateModifiedOnlyOption = options && + (typeof options === 'object') && + ('validateModifiedOnly' in options); + const validateOptions = hasValidateModifiedOnlyOption ? + { validateModifiedOnly: options.validateModifiedOnly } : + null; + this.$validate(validateOptions).then( + () => { + this.$op = 'save'; + next(); + }, + error => { + _this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) { + _this.$op = 'save'; + next(error); + }); + } + ); + } else { + next(); + } + }, null, unshift); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/query.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/query.js new file mode 100644 index 000000000..5bb3ee9a6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/query.js @@ -0,0 +1,5415 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const CastError = require('./error/cast'); +const DocumentNotFoundError = require('./error/notFound'); +const Kareem = require('kareem'); +const MongooseError = require('./error/mongooseError'); +const ObjectParameterError = require('./error/objectParameter'); +const QueryCursor = require('./cursor/queryCursor'); +const ValidationError = require('./error/validation'); +const { applyGlobalMaxTimeMS, applyGlobalDiskUse } = require('./helpers/query/applyGlobalOption'); +const handleReadPreferenceAliases = require('./helpers/query/handleReadPreferenceAliases'); +const applyReadConcern = require('./helpers/schema/applyReadConcern'); +const applyWriteConcern = require('./helpers/schema/applyWriteConcern'); +const cast = require('./cast'); +const castArrayFilters = require('./helpers/update/castArrayFilters'); +const castNumber = require('./cast/number'); +const castUpdate = require('./helpers/query/castUpdate'); +const clone = require('./helpers/clone'); +const getDiscriminatorByValue = require('./helpers/discriminator/getDiscriminatorByValue'); +const helpers = require('./queryHelpers'); +const immediate = require('./helpers/immediate'); +const internalToObjectOptions = require('./options').internalToObjectOptions; +const isExclusive = require('./helpers/projection/isExclusive'); +const isInclusive = require('./helpers/projection/isInclusive'); +const isPathSelectedInclusive = require('./helpers/projection/isPathSelectedInclusive'); +const isSubpath = require('./helpers/projection/isSubpath'); +const mpath = require('mpath'); +const mquery = require('mquery'); +const parseProjection = require('./helpers/projection/parseProjection'); +const removeUnusedArrayFilters = require('./helpers/update/removeUnusedArrayFilters'); +const sanitizeFilter = require('./helpers/query/sanitizeFilter'); +const sanitizeProjection = require('./helpers/query/sanitizeProjection'); +const selectPopulatedFields = require('./helpers/query/selectPopulatedFields'); +const setDefaultsOnInsert = require('./helpers/setDefaultsOnInsert'); +const specialProperties = require('./helpers/specialProperties'); +const updateValidators = require('./helpers/updateValidators'); +const util = require('util'); +const utils = require('./utils'); +const queryMiddlewareFunctions = require('./constants').queryMiddlewareFunctions; + +const queryOptionMethods = new Set([ + 'allowDiskUse', + 'batchSize', + 'collation', + 'comment', + 'explain', + 'hint', + 'j', + 'lean', + 'limit', + 'maxTimeMS', + 'populate', + 'projection', + 'read', + 'select', + 'skip', + 'slice', + 'sort', + 'tailable', + 'w', + 'writeConcern', + 'wtimeout' +]); + +/** + * Query constructor used for building queries. You do not need + * to instantiate a `Query` directly. Instead use Model functions like + * [`Model.find()`](https://mongoosejs.com/docs/api/model.html#Model.find()). + * + * #### Example: + * + * const query = MyModel.find(); // `query` is an instance of `Query` + * query.setOptions({ lean : true }); + * query.collection(MyModel.collection); + * query.where('age').gte(21).exec(callback); + * + * // You can instantiate a query directly. There is no need to do + * // this unless you're an advanced user with a very good reason to. + * const query = new mongoose.Query(); + * + * @param {Object} [options] + * @param {Object} [model] + * @param {Object} [conditions] + * @param {Object} [collection] Mongoose collection + * @api public + */ + +function Query(conditions, options, model, collection) { + // this stuff is for dealing with custom queries created by #toConstructor + if (!this._mongooseOptions) { + this._mongooseOptions = {}; + } + options = options || {}; + + this._transforms = []; + this._hooks = new Kareem(); + this._executionStack = null; + + // this is the case where we have a CustomQuery, we need to check if we got + // options passed in, and if we did, merge them in + const keys = Object.keys(options); + for (const key of keys) { + this._mongooseOptions[key] = options[key]; + } + + if (collection) { + this.mongooseCollection = collection; + } + + if (model) { + this.model = model; + this.schema = model.schema; + } + + // this is needed because map reduce returns a model that can be queried, but + // all of the queries on said model should be lean + if (this.model && this.model._mapreduce) { + this.lean(); + } + + // inherit mquery + mquery.call(this, null, options); + if (collection) { + this.collection(collection); + } + + if (conditions) { + this.find(conditions); + } + + this.options = this.options || {}; + + // For gh-6880. mquery still needs to support `fields` by default for old + // versions of MongoDB + this.$useProjection = true; + + const collation = this && + this.schema && + this.schema.options && + this.schema.options.collation || null; + if (collation != null) { + this.options.collation = collation; + } +} + +/*! + * inherit mquery + */ + +Query.prototype = new mquery(); +Query.prototype.constructor = Query; +Query.base = mquery.prototype; + +/*! + * Overwrite mquery's `_distinct`, because Mongoose uses that name + * to store the field to apply distinct on. + */ + +Object.defineProperty(Query.prototype, '_distinct', { + configurable: true, + writable: true, + enumerable: true, + value: undefined +}); + +/** + * Flag to opt out of using `$geoWithin`. + * + * ```javascript + * mongoose.Query.use$geoWithin = false; + * ``` + * + * MongoDB 2.4 deprecated the use of `$within`, replacing it with `$geoWithin`. Mongoose uses `$geoWithin` by default (which is 100% backward compatible with `$within`). If you are running an older version of MongoDB, set this flag to `false` so your `within()` queries continue to work. + * + * @see geoWithin https://www.mongodb.com/docs/manual/reference/operator/geoWithin/ + * @default true + * @property use$geoWithin + * @memberOf Query + * @static + * @api public + */ + +Query.use$geoWithin = mquery.use$geoWithin; + +/** + * Converts this query to a customized, reusable query constructor with all arguments and options retained. + * + * #### Example: + * + * // Create a query for adventure movies and read from the primary + * // node in the replica-set unless it is down, in which case we'll + * // read from a secondary node. + * const query = Movie.find({ tags: 'adventure' }).read('primaryPreferred'); + * + * // create a custom Query constructor based off these settings + * const Adventure = query.toConstructor(); + * + * // further narrow down our query results while still using the previous settings + * await Adventure().where({ name: /^Life/ }).exec(); + * + * // since Adventure is a stand-alone constructor we can also add our own + * // helper methods and getters without impacting global queries + * Adventure.prototype.startsWith = function (prefix) { + * this.where({ name: new RegExp('^' + prefix) }) + * return this; + * } + * Object.defineProperty(Adventure.prototype, 'highlyRated', { + * get: function () { + * this.where({ rating: { $gt: 4.5 }}); + * return this; + * } + * }) + * await Adventure().highlyRated.startsWith('Life').exec(); + * + * @return {Query} subclass-of-Query + * @api public + */ + +Query.prototype.toConstructor = function toConstructor() { + const model = this.model; + const coll = this.mongooseCollection; + + const CustomQuery = function(criteria, options) { + if (!(this instanceof CustomQuery)) { + return new CustomQuery(criteria, options); + } + this._mongooseOptions = clone(p._mongooseOptions); + Query.call(this, criteria, options || null, model, coll); + }; + + util.inherits(CustomQuery, model.Query); + + // set inherited defaults + const p = CustomQuery.prototype; + + p.options = {}; + + // Need to handle `sort()` separately because entries-style `sort()` syntax + // `sort([['prop1', 1]])` confuses mquery into losing the outer nested array. + // See gh-8159 + const options = Object.assign({}, this.options); + if (options.sort != null) { + p.sort(options.sort); + delete options.sort; + } + p.setOptions(options); + + p.op = this.op; + p._validateOp(); + p._conditions = clone(this._conditions); + p._fields = clone(this._fields); + p._update = clone(this._update, { + flattenDecimals: false + }); + p._path = this._path; + p._distinct = this._distinct; + p._collection = this._collection; + p._mongooseOptions = this._mongooseOptions; + + return CustomQuery; +}; + +/** + * Make a copy of this query so you can re-execute it. + * + * #### Example: + * + * const q = Book.findOne({ title: 'Casino Royale' }); + * await q.exec(); + * await q.exec(); // Throws an error because you can't execute a query twice + * + * await q.clone().exec(); // Works + * + * @method clone + * @return {Query} copy + * @memberOf Query + * @instance + * @api public + */ + +Query.prototype.clone = function() { + const model = this.model; + const collection = this.mongooseCollection; + + const q = new this.model.Query({}, {}, model, collection); + + // Need to handle `sort()` separately because entries-style `sort()` syntax + // `sort([['prop1', 1]])` confuses mquery into losing the outer nested array. + // See gh-8159 + const options = Object.assign({}, this.options); + if (options.sort != null) { + q.sort(options.sort); + delete options.sort; + } + q.setOptions(options); + + q.op = this.op; + q._validateOp(); + q._conditions = clone(this._conditions); + q._fields = clone(this._fields); + q._update = clone(this._update, { + flattenDecimals: false + }); + q._path = this._path; + q._distinct = this._distinct; + q._collection = this._collection; + q._mongooseOptions = this._mongooseOptions; + + return q; +}; + +/** + * Specifies a javascript function or expression to pass to MongoDBs query system. + * + * #### Example: + * + * query.$where('this.comments.length === 10 || this.name.length === 5') + * + * // or + * + * query.$where(function () { + * return this.comments.length === 10 || this.name.length === 5; + * }) + * + * #### Note: + * + * Only use `$where` when you have a condition that cannot be met using other MongoDB operators like `$lt`. + * **Be sure to read about all of [its caveats](https://www.mongodb.com/docs/manual/reference/operator/where/) before using.** + * + * @see $where https://www.mongodb.com/docs/manual/reference/operator/where/ + * @method $where + * @param {String|Function} js javascript string or function + * @return {Query} this + * @memberOf Query + * @instance + * @method $where + * @api public + */ + +/** + * Specifies a `path` for use with chaining. + * + * #### Example: + * + * // instead of writing: + * User.find({age: {$gte: 21, $lte: 65}}); + * + * // we can instead write: + * User.where('age').gte(21).lte(65); + * + * // passing query conditions is permitted + * User.find().where({ name: 'vonderful' }) + * + * // chaining + * User + * .where('age').gte(21).lte(65) + * .where('name', /^vonderful/i) + * .where('friends').slice(10) + * .exec() + * + * @method where + * @memberOf Query + * @instance + * @param {String|Object} [path] + * @param {any} [val] + * @return {Query} this + * @api public + */ + +/** + * Specifies a `$slice` projection for an array. + * + * #### Example: + * + * query.slice('comments', 5); // Returns the first 5 comments + * query.slice('comments', -5); // Returns the last 5 comments + * query.slice('comments', [10, 5]); // Returns the first 5 comments after the 10-th + * query.where('comments').slice(5); // Returns the first 5 comments + * query.where('comments').slice([-10, 5]); // Returns the first 5 comments after the 10-th to last + * + * **Note:** If the absolute value of the number of elements to be sliced is greater than the number of elements in the array, all array elements will be returned. + * + * // Given `arr`: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + * query.slice('arr', 20); // Returns [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + * query.slice('arr', -20); // Returns [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + * + * **Note:** If the number of elements to skip is positive and greater than the number of elements in the array, an empty array will be returned. + * + * // Given `arr`: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + * query.slice('arr', [20, 5]); // Returns [] + * + * **Note:** If the number of elements to skip is negative and its absolute value is greater than the number of elements in the array, the starting position is the start of the array. + * + * // Given `arr`: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + * query.slice('arr', [-20, 5]); // Returns [1, 2, 3, 4, 5] + * + * @method slice + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number|Array} val number of elements to slice or array with number of elements to skip and number of elements to slice + * @return {Query} this + * @see mongodb https://www.mongodb.com/docs/manual/tutorial/query-documents/#projection + * @see $slice https://www.mongodb.com/docs/manual/reference/projection/slice/#prj._S_slice + * @api public + */ + +Query.prototype.slice = function() { + if (arguments.length === 0) { + return this; + } + + this._validate('slice'); + + let path; + let val; + + if (arguments.length === 1) { + const arg = arguments[0]; + if (typeof arg === 'object' && !Array.isArray(arg)) { + const keys = Object.keys(arg); + const numKeys = keys.length; + for (let i = 0; i < numKeys; ++i) { + this.slice(keys[i], arg[keys[i]]); + } + return this; + } + this._ensurePath('slice'); + path = this._path; + val = arguments[0]; + } else if (arguments.length === 2) { + if ('number' === typeof arguments[0]) { + this._ensurePath('slice'); + path = this._path; + val = [arguments[0], arguments[1]]; + } else { + path = arguments[0]; + val = arguments[1]; + } + } else if (arguments.length === 3) { + path = arguments[0]; + val = [arguments[1], arguments[2]]; + } + + const p = {}; + p[path] = { $slice: val }; + this.select(p); + + return this; +}; + +/*! + * ignore + */ + +const validOpsSet = new Set(queryMiddlewareFunctions); + +Query.prototype._validateOp = function() { + if (this.op != null && !validOpsSet.has(this.op)) { + this.error(new Error('Query has invalid `op`: "' + this.op + '"')); + } +}; + +/** + * Specifies the complementary comparison value for paths specified with `where()` + * + * #### Example: + * + * User.where('age').equals(49); + * + * // is the same as + * + * User.where('age', 49); + * + * @method equals + * @memberOf Query + * @instance + * @param {Object} val + * @return {Query} this + * @api public + */ + +/** + * Specifies arguments for an `$or` condition. + * + * #### Example: + * + * query.or([{ color: 'red' }, { status: 'emergency' }]); + * + * @see $or https://www.mongodb.com/docs/manual/reference/operator/or/ + * @method or + * @memberOf Query + * @instance + * @param {Array} array array of conditions + * @return {Query} this + * @api public + */ + +/** + * Specifies arguments for a `$nor` condition. + * + * #### Example: + * + * query.nor([{ color: 'green' }, { status: 'ok' }]); + * + * @see $nor https://www.mongodb.com/docs/manual/reference/operator/nor/ + * @method nor + * @memberOf Query + * @instance + * @param {Array} array array of conditions + * @return {Query} this + * @api public + */ + +/** + * Specifies arguments for a `$and` condition. + * + * #### Example: + * + * query.and([{ color: 'green' }, { status: 'ok' }]) + * + * @method and + * @memberOf Query + * @instance + * @see $and https://www.mongodb.com/docs/manual/reference/operator/and/ + * @param {Array} array array of conditions + * @return {Query} this + * @api public + */ + +/** + * Specifies a `$gt` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * #### Example: + * + * Thing.find().where('age').gt(21); + * + * // or + * Thing.find().gt('age', 21); + * + * @method gt + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number} val + * @see $gt https://www.mongodb.com/docs/manual/reference/operator/gt/ + * @api public + */ + +/** + * Specifies a `$gte` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method gte + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number} val + * @see $gte https://www.mongodb.com/docs/manual/reference/operator/gte/ + * @api public + */ + +/** + * Specifies a `$lt` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method lt + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number} val + * @see $lt https://www.mongodb.com/docs/manual/reference/operator/lt/ + * @api public + */ + +/** + * Specifies a `$lte` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method lte + * @see $lte https://www.mongodb.com/docs/manual/reference/operator/lte/ + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a `$ne` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @see $ne https://www.mongodb.com/docs/manual/reference/operator/ne/ + * @method ne + * @memberOf Query + * @instance + * @param {String} [path] + * @param {any} val + * @api public + */ + +/** + * Specifies an `$in` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @see $in https://www.mongodb.com/docs/manual/reference/operator/in/ + * @method in + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Array} val + * @api public + */ + +/** + * Specifies an `$nin` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @see $nin https://www.mongodb.com/docs/manual/reference/operator/nin/ + * @method nin + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Array} val + * @api public + */ + +/** + * Specifies an `$all` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * #### Example: + * + * MyModel.find().where('pets').all(['dog', 'cat', 'ferret']); + * // Equivalent: + * MyModel.find().all('pets', ['dog', 'cat', 'ferret']); + * + * @see $all https://www.mongodb.com/docs/manual/reference/operator/all/ + * @method all + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Array} val + * @api public + */ + +/** + * Specifies a `$size` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * #### Example: + * + * const docs = await MyModel.where('tags').size(0).exec(); + * assert(Array.isArray(docs)); + * console.log('documents with 0 tags', docs); + * + * @see $size https://www.mongodb.com/docs/manual/reference/operator/size/ + * @method size + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a `$regex` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @see $regex https://www.mongodb.com/docs/manual/reference/operator/regex/ + * @method regex + * @memberOf Query + * @instance + * @param {String} [path] + * @param {String|RegExp} val + * @api public + */ + +/** + * Specifies a `maxDistance` query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @see $maxDistance https://www.mongodb.com/docs/manual/reference/operator/maxDistance/ + * @method maxDistance + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a `$mod` condition, filters documents for documents whose + * `path` property is a number that is equal to `remainder` modulo `divisor`. + * + * #### Example: + * + * // All find products whose inventory is odd + * Product.find().mod('inventory', [2, 1]); + * Product.find().where('inventory').mod([2, 1]); + * // This syntax is a little strange, but supported. + * Product.find().where('inventory').mod(2, 1); + * + * @method mod + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Array} val must be of length 2, first element is `divisor`, 2nd element is `remainder`. + * @return {Query} this + * @see $mod https://www.mongodb.com/docs/manual/reference/operator/mod/ + * @api public + */ + +Query.prototype.mod = function() { + let val; + let path; + + if (arguments.length === 1) { + this._ensurePath('mod'); + val = arguments[0]; + path = this._path; + } else if (arguments.length === 2 && !Array.isArray(arguments[1])) { + this._ensurePath('mod'); + val = [arguments[0], arguments[1]]; + path = this._path; + } else if (arguments.length === 3) { + val = [arguments[1], arguments[2]]; + path = arguments[0]; + } else { + val = arguments[1]; + path = arguments[0]; + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds.$mod = val; + return this; +}; + +/** + * Specifies an `$exists` condition + * + * #### Example: + * + * // { name: { $exists: true }} + * Thing.where('name').exists() + * Thing.where('name').exists(true) + * Thing.find().exists('name') + * + * // { name: { $exists: false }} + * Thing.where('name').exists(false); + * Thing.find().exists('name', false); + * + * @method exists + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Boolean} val + * @return {Query} this + * @see $exists https://www.mongodb.com/docs/manual/reference/operator/exists/ + * @api public + */ + +/** + * Specifies an `$elemMatch` condition + * + * #### Example: + * + * query.elemMatch('comment', { author: 'autobot', votes: {$gte: 5}}) + * + * query.where('comment').elemMatch({ author: 'autobot', votes: {$gte: 5}}) + * + * query.elemMatch('comment', function (elem) { + * elem.where('author').equals('autobot'); + * elem.where('votes').gte(5); + * }) + * + * query.where('comment').elemMatch(function (elem) { + * elem.where({ author: 'autobot' }); + * elem.where('votes').gte(5); + * }) + * + * @method elemMatch + * @memberOf Query + * @instance + * @param {String|Object|Function} path + * @param {Object|Function} filter + * @return {Query} this + * @see $elemMatch https://www.mongodb.com/docs/manual/reference/operator/elemMatch/ + * @api public + */ + +/** + * Defines a `$within` or `$geoWithin` argument for geo-spatial queries. + * + * #### Example: + * + * query.where(path).within().box() + * query.where(path).within().circle() + * query.where(path).within().geometry() + * + * query.where('loc').within({ center: [50,50], radius: 10, unique: true, spherical: true }); + * query.where('loc').within({ box: [[40.73, -73.9], [40.7, -73.988]] }); + * query.where('loc').within({ polygon: [[],[],[],[]] }); + * + * query.where('loc').within([], [], []) // polygon + * query.where('loc').within([], []) // box + * query.where('loc').within({ type: 'LineString', coordinates: [...] }); // geometry + * + * **MUST** be used after `where()`. + * + * #### Note: + * + * As of Mongoose 3.7, `$geoWithin` is always used for queries. To change this behavior, see [Query.use$geoWithin](https://mongoosejs.com/docs/api/query.html#Query.prototype.use$geoWithin). + * + * #### Note: + * + * In Mongoose 3.7, `within` changed from a getter to a function. If you need the old syntax, use [this](https://github.com/ebensing/mongoose-within). + * + * @method within + * @see $polygon https://www.mongodb.com/docs/manual/reference/operator/polygon/ + * @see $box https://www.mongodb.com/docs/manual/reference/operator/box/ + * @see $geometry https://www.mongodb.com/docs/manual/reference/operator/geometry/ + * @see $center https://www.mongodb.com/docs/manual/reference/operator/center/ + * @see $centerSphere https://www.mongodb.com/docs/manual/reference/operator/centerSphere/ + * @memberOf Query + * @instance + * @return {Query} this + * @api public + */ + +/** + * Specifies the maximum number of documents the query will return. + * + * #### Example: + * + * query.limit(20); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method limit + * @memberOf Query + * @instance + * @param {Number} val + * @api public + */ + +Query.prototype.limit = function limit(v) { + this._validate('limit'); + + if (typeof v === 'string') { + try { + v = castNumber(v); + } catch (err) { + throw new CastError('Number', v, 'limit'); + } + } + + this.options.limit = v; + return this; +}; + +/** + * Specifies the number of documents to skip. + * + * #### Example: + * + * query.skip(100).limit(20); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method skip + * @memberOf Query + * @instance + * @param {Number} val + * @see cursor.skip https://www.mongodb.com/docs/manual/reference/method/cursor.skip/ + * @api public + */ + +Query.prototype.skip = function skip(v) { + this._validate('skip'); + + if (typeof v === 'string') { + try { + v = castNumber(v); + } catch (err) { + throw new CastError('Number', v, 'skip'); + } + } + + this.options.skip = v; + return this; +}; + +/** + * Specifies the batchSize option. + * + * #### Example: + * + * query.batchSize(100) + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method batchSize + * @memberOf Query + * @instance + * @param {Number} val + * @see batchSize https://www.mongodb.com/docs/manual/reference/method/cursor.batchSize/ + * @api public + */ + +/** + * Specifies the `comment` option. + * + * #### Example: + * + * query.comment('login query') + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method comment + * @memberOf Query + * @instance + * @param {String} val + * @see comment https://www.mongodb.com/docs/manual/reference/operator/comment/ + * @api public + */ + +/** + * Sets query hints. + * + * #### Example: + * + * query.hint({ indexA: 1, indexB: -1 }); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method hint + * @memberOf Query + * @instance + * @param {Object} val a hint object + * @return {Query} this + * @see $hint https://www.mongodb.com/docs/manual/reference/operator/hint/ + * @api public + */ + +/** + * Get/set the current projection (AKA fields). Pass `null` to remove the + * current projection. + * + * Unlike `projection()`, the `select()` function modifies the current + * projection in place. This function overwrites the existing projection. + * + * #### Example: + * + * const q = Model.find(); + * q.projection(); // null + * + * q.select('a b'); + * q.projection(); // { a: 1, b: 1 } + * + * q.projection({ c: 1 }); + * q.projection(); // { c: 1 } + * + * q.projection(null); + * q.projection(); // null + * + * + * @method projection + * @memberOf Query + * @instance + * @param {Object|null} arg + * @return {Object} the current projection + * @api public + */ + +Query.prototype.projection = function(arg) { + if (arguments.length === 0) { + return this._fields; + } + + this._fields = {}; + this._userProvidedFields = {}; + this.select(arg); + return this._fields; +}; + +/** + * Specifies which document fields to include or exclude (also known as the query "projection") + * + * When using string syntax, prefixing a path with `-` will flag that path as excluded. When a path does not have the `-` prefix, it is included. Lastly, if a path is prefixed with `+`, it forces inclusion of the path, which is useful for paths excluded at the [schema level](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.select()). + * + * A projection _must_ be either inclusive or exclusive. In other words, you must + * either list the fields to include (which excludes all others), or list the fields + * to exclude (which implies all other fields are included). The [`_id` field is the only exception because MongoDB includes it by default](https://www.mongodb.com/docs/manual/tutorial/project-fields-from-query-results/#suppress-id-field). + * + * #### Example: + * + * // include a and b, exclude other fields + * query.select('a b'); + * // Equivalent syntaxes: + * query.select(['a', 'b']); + * query.select({ a: 1, b: 1 }); + * + * // exclude c and d, include other fields + * query.select('-c -d'); + * + * // Use `+` to override schema-level `select: false` without making the + * // projection inclusive. + * const schema = new Schema({ + * foo: { type: String, select: false }, + * bar: String + * }); + * // ... + * query.select('+foo'); // Override foo's `select: false` without excluding `bar` + * + * // or you may use object notation, useful when + * // you have keys already prefixed with a "-" + * query.select({ a: 1, b: 1 }); + * query.select({ c: 0, d: 0 }); + * + * Additional calls to select can override the previous selection: + * query.select({ a: 1, b: 1 }).select({ b: 0 }); // selection is now { a: 1 } + * query.select({ a: 0, b: 0 }).select({ b: 1 }); // selection is now { a: 0 } + * + * + * @method select + * @memberOf Query + * @instance + * @param {Object|String|String[]} arg + * @return {Query} this + * @see SchemaType https://mongoosejs.com/docs/api/schematype.html + * @api public + */ + +Query.prototype.select = function select() { + let arg = arguments[0]; + if (!arg) return this; + + if (arguments.length !== 1) { + throw new Error('Invalid select: select only takes 1 argument'); + } + + this._validate('select'); + + const fields = this._fields || (this._fields = {}); + const userProvidedFields = this._userProvidedFields || (this._userProvidedFields = {}); + let sanitizeProjection = undefined; + if (this.model != null && utils.hasUserDefinedProperty(this.model.db.options, 'sanitizeProjection')) { + sanitizeProjection = this.model.db.options.sanitizeProjection; + } else if (this.model != null && utils.hasUserDefinedProperty(this.model.base.options, 'sanitizeProjection')) { + sanitizeProjection = this.model.base.options.sanitizeProjection; + } else { + sanitizeProjection = this._mongooseOptions.sanitizeProjection; + } + + function sanitizeValue(value) { + return typeof value === 'string' && sanitizeProjection ? value = 1 : value; + } + arg = parseProjection(arg, true); // we want to keep the minus and pluses, so add boolean arg. + if (utils.isObject(arg)) { + if (this.selectedInclusively()) { + Object.entries(arg).forEach(([key, value]) => { + if (value) { + // Add the field to the projection + if (fields['-' + key] != null) { + delete fields['-' + key]; + } + fields[key] = userProvidedFields[key] = sanitizeValue(value); + } else { + // Remove the field from the projection + Object.keys(userProvidedFields).forEach(field => { + if (isSubpath(key, field)) { + delete fields[field]; + delete userProvidedFields[field]; + } + }); + } + }); + } else if (this.selectedExclusively()) { + Object.entries(arg).forEach(([key, value]) => { + if (!value) { + // Add the field to the projection + if (fields['+' + key] != null) { + delete fields['+' + key]; + } + fields[key] = userProvidedFields[key] = sanitizeValue(value); + } else { + // Remove the field from the projection + Object.keys(userProvidedFields).forEach(field => { + if (isSubpath(key, field)) { + delete fields[field]; + delete userProvidedFields[field]; + } + }); + } + }); + } else { + const keys = Object.keys(arg); + for (let i = 0; i < keys.length; ++i) { + const value = arg[keys[i]]; + const key = keys[i]; + fields[key] = sanitizeValue(value); + userProvidedFields[key] = sanitizeValue(value); + } + } + + return this; + } + + throw new TypeError('Invalid select() argument. Must be string or object.'); +}; + +/** + * Determines the MongoDB nodes from which to read. + * + * #### Preferences: + * + * ``` + * primary - (default) Read from primary only. Operations will produce an error if primary is unavailable. Cannot be combined with tags. + * secondary Read from secondary if available, otherwise error. + * primaryPreferred Read from primary if available, otherwise a secondary. + * secondaryPreferred Read from a secondary if available, otherwise read from the primary. + * nearest All operations read from among the nearest candidates, but unlike other modes, this option will include both the primary and all secondaries in the random selection. + * ``` + * + * Aliases + * + * ``` + * p primary + * pp primaryPreferred + * s secondary + * sp secondaryPreferred + * n nearest + * ``` + * + * #### Example: + * + * new Query().read('primary') + * new Query().read('p') // same as primary + * + * new Query().read('primaryPreferred') + * new Query().read('pp') // same as primaryPreferred + * + * new Query().read('secondary') + * new Query().read('s') // same as secondary + * + * new Query().read('secondaryPreferred') + * new Query().read('sp') // same as secondaryPreferred + * + * new Query().read('nearest') + * new Query().read('n') // same as nearest + * + * // read from secondaries with matching tags + * new Query().read('s', [{ dc:'sf', s: 1 },{ dc:'ma', s: 2 }]) + * + * Read more about how to use read preferences [here](https://www.mongodb.com/docs/manual/applications/replication/#read-preference). + * + * @method read + * @memberOf Query + * @instance + * @param {String} mode one of the listed preference options or aliases + * @param {Array} [tags] optional tags for this query + * @see mongodb https://www.mongodb.com/docs/manual/applications/replication/#read-preference + * @return {Query} this + * @api public + */ + +Query.prototype.read = function read(mode, tags) { + if (typeof mode === 'string') { + mode = handleReadPreferenceAliases(mode); + this.options.readPreference = { mode, tags }; + } else { + this.options.readPreference = mode; + } + return this; +}; + +/** + * Overwrite default `.toString` to make logging more useful + * + * @memberOf Query + * @instance + * @method toString + * @api private + */ + +Query.prototype.toString = function toString() { + if (this.op === 'count' || + this.op === 'countDocuments' || + this.op === 'find' || + this.op === 'findOne' || + this.op === 'deleteMany' || + this.op === 'deleteOne' || + this.op === 'findOneAndDelete' || + this.op === 'remove') { + return `${this.model.modelName}.${this.op}(${util.inspect(this._conditions)})`; + } + if (this.op === 'distinct') { + return `${this.model.modelName}.distinct('${this._distinct}', ${util.inspect(this._conditions)})`; + } + if (this.op === 'findOneAndReplace' || + this.op === 'findOneAndUpdate' || + this.op === 'replaceOne' || + this.op === 'update' || + this.op === 'updateMany' || + this.op === 'updateOne') { + return `${this.model.modelName}.${this.op}(${util.inspect(this._conditions)}, ${util.inspect(this._update)})`; + } + + // 'estimatedDocumentCount' or any others + return `${this.model.modelName}.${this.op}()`; +}; + +/** + * Sets the [MongoDB session](https://www.mongodb.com/docs/manual/reference/server-sessions/) + * associated with this query. Sessions are how you mark a query as part of a + * [transaction](https://mongoosejs.com/docs/transactions.html). + * + * Calling `session(null)` removes the session from this query. + * + * #### Example: + * + * const s = await mongoose.startSession(); + * await mongoose.model('Person').findOne({ name: 'Axl Rose' }).session(s); + * + * @method session + * @memberOf Query + * @instance + * @param {ClientSession} [session] from `await conn.startSession()` + * @see Connection.prototype.startSession() https://mongoosejs.com/docs/api/connection.html#Connection.prototype.startSession() + * @see mongoose.startSession() https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.startSession() + * @return {Query} this + * @api public + */ + +Query.prototype.session = function session(v) { + if (v == null) { + delete this.options.session; + } + this.options.session = v; + return this; +}; + +/** + * Sets the 3 write concern parameters for this query: + * + * - `w`: Sets the specified number of `mongod` servers, or tag set of `mongod` servers, that must acknowledge this write before this write is considered successful. + * - `j`: Boolean, set to `true` to request acknowledgement that this operation has been persisted to MongoDB's on-disk journal. + * - `wtimeout`: If [`w > 1`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()), the maximum amount of time to wait for this write to propagate through the replica set before this operation fails. The default is `0`, which means no timeout. + * + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndReplace()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to the schema's [`writeConcern` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * + * #### Example: + * + * // The 'majority' option means the `deleteOne()` promise won't resolve + * // until the `deleteOne()` has propagated to the majority of the replica set + * await mongoose.model('Person'). + * deleteOne({ name: 'Ned Stark' }). + * writeConcern({ w: 'majority' }); + * + * @method writeConcern + * @memberOf Query + * @instance + * @param {Object} writeConcern the write concern value to set + * @see WriteConcernSettings https://mongodb.github.io/node-mongodb-native/4.9/interfaces/WriteConcernSettings.html + * @return {Query} this + * @api public + */ + +Query.prototype.writeConcern = function writeConcern(val) { + if (val == null) { + delete this.options.writeConcern; + return this; + } + this.options.writeConcern = val; + return this; +}; + +/** + * Sets the specified number of `mongod` servers, or tag set of `mongod` servers, + * that must acknowledge this write before this write is considered successful. + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndReplace()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to the schema's [`writeConcern.w` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * + * #### Example: + * + * // The 'majority' option means the `deleteOne()` promise won't resolve + * // until the `deleteOne()` has propagated to the majority of the replica set + * await mongoose.model('Person'). + * deleteOne({ name: 'Ned Stark' }). + * w('majority'); + * + * @method w + * @memberOf Query + * @instance + * @param {String|number} val 0 for fire-and-forget, 1 for acknowledged by one server, 'majority' for majority of the replica set, or [any of the more advanced options](https://www.mongodb.com/docs/manual/reference/write-concern/#w-option). + * @see mongodb https://www.mongodb.com/docs/manual/reference/write-concern/#w-option + * @return {Query} this + * @api public + */ + +Query.prototype.w = function w(val) { + if (val == null) { + delete this.options.w; + } + if (this.options.writeConcern != null) { + this.options.writeConcern.w = val; + } else { + this.options.w = val; + } + return this; +}; + +/** + * Requests acknowledgement that this operation has been persisted to MongoDB's + * on-disk journal. + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndReplace()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to the schema's [`writeConcern.j` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * + * #### Example: + * + * await mongoose.model('Person').deleteOne({ name: 'Ned Stark' }).j(true); + * + * @method j + * @memberOf Query + * @instance + * @param {boolean} val + * @see mongodb https://www.mongodb.com/docs/manual/reference/write-concern/#j-option + * @return {Query} this + * @api public + */ + +Query.prototype.j = function j(val) { + if (val == null) { + delete this.options.j; + } + if (this.options.writeConcern != null) { + this.options.writeConcern.j = val; + } else { + this.options.j = val; + } + return this; +}; + +/** + * If [`w > 1`](https://mongoosejs.com/docs/api/query.html#Query.prototype.w()), the maximum amount of time to + * wait for this write to propagate through the replica set before this + * operation fails. The default is `0`, which means no timeout. + * + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndReplace()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to the schema's [`writeConcern.wtimeout` option](https://mongoosejs.com/docs/guide.html#writeConcern) + * + * #### Example: + * + * // The `deleteOne()` promise won't resolve until this `deleteOne()` has + * // propagated to at least `w = 2` members of the replica set. If it takes + * // longer than 1 second, this `deleteOne()` will fail. + * await mongoose.model('Person'). + * deleteOne({ name: 'Ned Stark' }). + * w(2). + * wtimeout(1000); + * + * @method wtimeout + * @memberOf Query + * @instance + * @param {number} ms number of milliseconds to wait + * @see mongodb https://www.mongodb.com/docs/manual/reference/write-concern/#wtimeout + * @return {Query} this + * @api public + */ + +Query.prototype.wtimeout = function wtimeout(ms) { + if (ms == null) { + delete this.options.wtimeout; + } + if (this.options.writeConcern != null) { + this.options.writeConcern.wtimeout = ms; + } else { + this.options.wtimeout = ms; + } + return this; +}; + +/** + * Sets the readConcern option for the query. + * + * #### Example: + * + * new Query().readConcern('local') + * new Query().readConcern('l') // same as local + * + * new Query().readConcern('available') + * new Query().readConcern('a') // same as available + * + * new Query().readConcern('majority') + * new Query().readConcern('m') // same as majority + * + * new Query().readConcern('linearizable') + * new Query().readConcern('lz') // same as linearizable + * + * new Query().readConcern('snapshot') + * new Query().readConcern('s') // same as snapshot + * + * + * #### Read Concern Level: + * + * ``` + * local MongoDB 3.2+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). + * available MongoDB 3.6+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). + * majority MongoDB 3.2+ The query returns the data that has been acknowledged by a majority of the replica set members. The documents returned by the read operation are durable, even in the event of failure. + * linearizable MongoDB 3.4+ The query returns data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation. The query may wait for concurrently executing writes to propagate to a majority of replica set members before returning results. + * snapshot MongoDB 4.0+ Only available for operations within multi-document transactions. Upon transaction commit with write concern "majority", the transaction operations are guaranteed to have read from a snapshot of majority-committed data. + * ``` + * + * Aliases + * + * ``` + * l local + * a available + * m majority + * lz linearizable + * s snapshot + * ``` + * + * Read more about how to use read concern [here](https://www.mongodb.com/docs/manual/reference/read-concern/). + * + * @memberOf Query + * @method readConcern + * @param {String} level one of the listed read concern level or their aliases + * @see mongodb https://www.mongodb.com/docs/manual/reference/read-concern/ + * @return {Query} this + * @api public + */ + +/** + * Gets query options. + * + * #### Example: + * + * const query = new Query(); + * query.limit(10); + * query.setOptions({ maxTimeMS: 1000 }); + * query.getOptions(); // { limit: 10, maxTimeMS: 1000 } + * + * @return {Object} the options + * @api public + */ + +Query.prototype.getOptions = function() { + return this.options; +}; + +/** + * Sets query options. Some options only make sense for certain operations. + * + * #### Options: + * + * The following options are only for `find()`: + * + * - [tailable](https://www.mongodb.com/docs/manual/core/tailable-cursors/) + * - [limit](https://www.mongodb.com/docs/manual/reference/method/cursor.limit/) + * - [skip](https://www.mongodb.com/docs/manual/reference/method/cursor.skip/) + * - [allowDiskUse](https://www.mongodb.com/docs/manual/reference/method/cursor.allowDiskUse/) + * - [batchSize](https://www.mongodb.com/docs/manual/reference/method/cursor.batchSize/) + * - [readPreference](https://www.mongodb.com/docs/manual/applications/replication/#read-preference) + * - [hint](https://www.mongodb.com/docs/manual/reference/method/cursor.hint/) + * - [comment](https://www.mongodb.com/docs/manual/reference/method/cursor.comment/) + * + * The following options are only for write operations: `updateOne()`, `updateMany()`, `replaceOne()`, `findOneAndUpdate()`, and `findByIdAndUpdate()`: + * + * - [upsert](https://www.mongodb.com/docs/manual/reference/method/db.collection.update/) + * - [writeConcern](https://www.mongodb.com/docs/manual/reference/method/db.collection.update/) + * - [timestamps](https://mongoosejs.com/docs/guide.html#timestamps): If `timestamps` is set in the schema, set this option to `false` to skip timestamps for that particular update. Has no effect if `timestamps` is not enabled in the schema options. + * - overwriteDiscriminatorKey: allow setting the discriminator key in the update. Will use the correct discriminator schema if the update changes the discriminator key. + * + * The following options are only for `find()`, `findOne()`, `findById()`, `findOneAndUpdate()`, `findOneAndReplace()`, `findOneAndDelete()`, and `findByIdAndUpdate()`: + * + * - [lean](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) + * - [populate](https://mongoosejs.com/docs/populate.html) + * - [projection](https://mongoosejs.com/docs/api/query.html#Query.prototype.projection()) + * - sanitizeProjection + * - useBigInt64 + * + * The following options are only for all operations **except** `updateOne()`, `updateMany()`, `deleteOne()`, and `deleteMany()`: + * + * - [maxTimeMS](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/) + * + * The following options are for `find()`, `findOne()`, `findOneAndUpdate()`, `findOneAndDelete()`, `updateOne()`, and `deleteOne()`: + * + * - [sort](https://www.mongodb.com/docs/manual/reference/method/cursor.sort/) + * + * The following options are for `findOneAndUpdate()` and `findOneAndDelete()` + * + * - includeResultMetadata + * + * The following options are for all operations: + * + * - [strict](https://mongoosejs.com/docs/guide.html#strict) + * - [collation](https://www.mongodb.com/docs/manual/reference/collation/) + * - [session](https://www.mongodb.com/docs/manual/reference/server-sessions/) + * - [explain](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/) + * + * @param {Object} options + * @return {Query} this + * @api public + */ + +Query.prototype.setOptions = function(options, overwrite) { + // overwrite is only for internal use + if (overwrite) { + // ensure that _mongooseOptions & options are two different objects + this._mongooseOptions = (options && clone(options)) || {}; + this.options = options || {}; + + if ('populate' in options) { + this.populate(this._mongooseOptions); + } + return this; + } + if (options == null) { + return this; + } + if (typeof options !== 'object') { + throw new Error('Options must be an object, got "' + options + '"'); + } + + options = Object.assign({}, options); + + if (Array.isArray(options.populate)) { + const populate = options.populate; + delete options.populate; + const _numPopulate = populate.length; + for (let i = 0; i < _numPopulate; ++i) { + this.populate(populate[i]); + } + } + + if ('setDefaultsOnInsert' in options) { + this._mongooseOptions.setDefaultsOnInsert = options.setDefaultsOnInsert; + delete options.setDefaultsOnInsert; + } + if ('overwriteDiscriminatorKey' in options) { + this._mongooseOptions.overwriteDiscriminatorKey = options.overwriteDiscriminatorKey; + delete options.overwriteDiscriminatorKey; + } + if ('sanitizeProjection' in options) { + if (options.sanitizeProjection && !this._mongooseOptions.sanitizeProjection) { + sanitizeProjection(this._fields); + } + + this._mongooseOptions.sanitizeProjection = options.sanitizeProjection; + delete options.sanitizeProjection; + } + if ('sanitizeFilter' in options) { + this._mongooseOptions.sanitizeFilter = options.sanitizeFilter; + delete options.sanitizeFilter; + } + if ('timestamps' in options) { + this._mongooseOptions.timestamps = options.timestamps; + delete options.timestamps; + } + if ('defaults' in options) { + this._mongooseOptions.defaults = options.defaults; + // deleting options.defaults will cause 7287 to fail + } + if ('translateAliases' in options) { + this._mongooseOptions.translateAliases = options.translateAliases; + delete options.translateAliases; + } + + if (options.lean == null && this.schema && 'lean' in this.schema.options) { + this._mongooseOptions.lean = this.schema.options.lean; + } + + if (typeof options.limit === 'string') { + try { + options.limit = castNumber(options.limit); + } catch (err) { + throw new CastError('Number', options.limit, 'limit'); + } + } + if (typeof options.skip === 'string') { + try { + options.skip = castNumber(options.skip); + } catch (err) { + throw new CastError('Number', options.skip, 'skip'); + } + } + + // set arbitrary options + for (const key of Object.keys(options)) { + if (queryOptionMethods.has(key)) { + const args = Array.isArray(options[key]) ? + options[key] : + [options[key]]; + this[key].apply(this, args); + } else { + this.options[key] = options[key]; + } + } + + return this; +}; + +/** + * Sets the [`explain` option](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/), + * which makes this query return detailed execution stats instead of the actual + * query result. This method is useful for determining what index your queries + * use. + * + * Calling `query.explain(v)` is equivalent to `query.setOptions({ explain: v })` + * + * #### Example: + * + * const query = new Query(); + * const res = await query.find({ a: 1 }).explain('queryPlanner'); + * console.log(res); + * + * @param {String} [verbose] The verbosity mode. Either 'queryPlanner', 'executionStats', or 'allPlansExecution'. The default is 'queryPlanner' + * @return {Query} this + * @api public + */ + +Query.prototype.explain = function explain(verbose) { + if (arguments.length === 0) { + this.options.explain = true; + } else if (verbose === false) { + delete this.options.explain; + } else { + this.options.explain = verbose; + } + return this; +}; + +/** + * Sets the [`allowDiskUse` option](https://www.mongodb.com/docs/manual/reference/method/cursor.allowDiskUse/), + * which allows the MongoDB server to use more than 100 MB for this query's `sort()`. This option can + * let you work around `QueryExceededMemoryLimitNoDiskUseAllowed` errors from the MongoDB server. + * + * Note that this option requires MongoDB server >= 4.4. Setting this option is a no-op for MongoDB 4.2 + * and earlier. + * + * Calling `query.allowDiskUse(v)` is equivalent to `query.setOptions({ allowDiskUse: v })` + * + * #### Example: + * + * await query.find().sort({ name: 1 }).allowDiskUse(true); + * // Equivalent: + * await query.find().sort({ name: 1 }).allowDiskUse(); + * + * @param {Boolean} [v] Enable/disable `allowDiskUse`. If called with 0 arguments, sets `allowDiskUse: true` + * @return {Query} this + * @api public + */ + +Query.prototype.allowDiskUse = function(v) { + if (arguments.length === 0) { + this.options.allowDiskUse = true; + } else if (v === false) { + delete this.options.allowDiskUse; + } else { + this.options.allowDiskUse = v; + } + return this; +}; + +/** + * Sets the [maxTimeMS](https://www.mongodb.com/docs/manual/reference/method/cursor.maxTimeMS/) + * option. This will tell the MongoDB server to abort if the query or write op + * has been running for more than `ms` milliseconds. + * + * Calling `query.maxTimeMS(v)` is equivalent to `query.setOptions({ maxTimeMS: v })` + * + * #### Example: + * + * const query = new Query(); + * // Throws an error 'operation exceeded time limit' as long as there's + * // >= 1 doc in the queried collection + * const res = await query.find({ $where: 'sleep(1000) || true' }).maxTimeMS(100); + * + * @param {Number} [ms] The number of milliseconds + * @return {Query} this + * @api public + */ + +Query.prototype.maxTimeMS = function(ms) { + this.options.maxTimeMS = ms; + return this; +}; + +/** + * Returns the current query filter (also known as conditions) as a [POJO](https://masteringjs.io/tutorials/fundamentals/pojo). + * + * #### Example: + * + * const query = new Query(); + * query.find({ a: 1 }).where('b').gt(2); + * query.getFilter(); // { a: 1, b: { $gt: 2 } } + * + * @return {Object} current query filter + * @api public + */ + +Query.prototype.getFilter = function() { + return this._conditions; +}; + +/** + * Returns the current query filter. Equivalent to `getFilter()`. + * + * You should use `getFilter()` instead of `getQuery()` where possible. `getQuery()` + * will likely be deprecated in a future release. + * + * #### Example: + * + * const query = new Query(); + * query.find({ a: 1 }).where('b').gt(2); + * query.getQuery(); // { a: 1, b: { $gt: 2 } } + * + * @return {Object} current query filter + * @api public + */ + +Query.prototype.getQuery = function() { + return this._conditions; +}; + +/** + * Sets the query conditions to the provided JSON object. + * + * #### Example: + * + * const query = new Query(); + * query.find({ a: 1 }) + * query.setQuery({ a: 2 }); + * query.getQuery(); // { a: 2 } + * + * @param {Object} new query conditions + * @return {undefined} + * @api public + */ + +Query.prototype.setQuery = function(val) { + this._conditions = val; +}; + +/** + * Returns the current update operations as a JSON object. + * + * #### Example: + * + * const query = new Query(); + * query.updateOne({}, { $set: { a: 5 } }); + * query.getUpdate(); // { $set: { a: 5 } } + * + * @return {Object} current update operations + * @api public + */ + +Query.prototype.getUpdate = function() { + return this._update; +}; + +/** + * Sets the current update operation to new value. + * + * #### Example: + * + * const query = new Query(); + * query.updateOne({}, { $set: { a: 5 } }); + * query.setUpdate({ $set: { b: 6 } }); + * query.getUpdate(); // { $set: { b: 6 } } + * + * @param {Object} new update operation + * @return {undefined} + * @api public + */ + +Query.prototype.setUpdate = function(val) { + this._update = val; +}; + +/** + * Returns fields selection for this query. + * + * @method _fieldsForExec + * @return {Object} + * @api private + * @memberOf Query + */ + +Query.prototype._fieldsForExec = function() { + if (this._fields == null) { + return null; + } + if (Object.keys(this._fields).length === 0) { + return null; + } + return clone(this._fields); +}; + + +/** + * Return an update document with corrected `$set` operations. + * + * @method _updateForExec + * @return {Object} + * @api private + * @memberOf Query + */ + +Query.prototype._updateForExec = function() { + const update = clone(this._update, { + transform: false, + depopulate: true + }); + const ops = Object.keys(update); + let i = ops.length; + const ret = {}; + + while (i--) { + const op = ops[i]; + + if ('$' !== op[0]) { + // fix up $set sugar + if (!ret.$set) { + if (update.$set) { + ret.$set = update.$set; + } else { + ret.$set = {}; + } + } + ret.$set[op] = update[op]; + ops.splice(i, 1); + if (!~ops.indexOf('$set')) ops.push('$set'); + } else if ('$set' === op) { + if (!ret.$set) { + ret[op] = update[op]; + } + } else { + ret[op] = update[op]; + } + } + + return ret; +}; + +/** + * Makes sure _path is set. + * + * This method is inherited by `mquery` + * + * @method _ensurePath + * @param {String} method + * @api private + * @memberOf Query + */ + +/** + * Determines if `conds` can be merged using `mquery().merge()` + * + * @method canMerge + * @memberOf Query + * @instance + * @param {Object} conds + * @return {Boolean} + * @api private + */ + +/** + * Returns default options for this query. + * + * @param {Model} model + * @api private + */ + +Query.prototype._optionsForExec = function(model) { + const options = clone(this.options); + delete options.populate; + model = model || this.model; + + if (!model) { + return options; + } + applyReadConcern(model.schema, options); + // Apply schema-level `writeConcern` option + applyWriteConcern(model.schema, options); + + const asyncLocalStorage = this.model?.db?.base.transactionAsyncLocalStorage?.getStore(); + if (!this.options.hasOwnProperty('session') && asyncLocalStorage?.session != null) { + options.session = asyncLocalStorage.session; + } + + const readPreference = model && + model.schema && + model.schema.options && + model.schema.options.read; + if (!('readPreference' in options) && readPreference) { + options.readPreference = readPreference; + } + + if (options.upsert !== void 0) { + options.upsert = !!options.upsert; + } + if (options.writeConcern) { + if (options.j) { + options.writeConcern.j = options.j; + delete options.j; + } + if (options.w) { + options.writeConcern.w = options.w; + delete options.w; + } + if (options.wtimeout) { + options.writeConcern.wtimeout = options.wtimeout; + delete options.wtimeout; + } + } + + this._applyPaths(); + if (this._fields != null) { + this._fields = this._castFields(this._fields); + const projection = this._fieldsForExec(); + if (projection != null) { + options.projection = projection; + } + } + + return options; +}; + +/** + * Sets the lean option. + * + * Documents returned from queries with the `lean` option enabled are plain + * javascript objects, not [Mongoose Documents](https://mongoosejs.com/docs/api/document.html). They have no + * `save` method, getters/setters, virtuals, or other Mongoose features. + * + * #### Example: + * + * new Query().lean() // true + * new Query().lean(true) + * new Query().lean(false) + * + * const docs = await Model.find().lean(); + * docs[0] instanceof mongoose.Document; // false + * + * [Lean is great for high-performance, read-only cases](https://mongoosejs.com/docs/tutorials/lean.html), + * especially when combined + * with [cursors](https://mongoosejs.com/docs/queries.html#streaming). + * + * If you need virtuals, getters/setters, or defaults with `lean()`, you need + * to use a plugin. See: + * + * - [mongoose-lean-virtuals](https://plugins.mongoosejs.io/plugins/lean-virtuals) + * - [mongoose-lean-getters](https://plugins.mongoosejs.io/plugins/lean-getters) + * - [mongoose-lean-defaults](https://www.npmjs.com/package/mongoose-lean-defaults) + * + * @param {Boolean|Object} bool defaults to true + * @return {Query} this + * @api public + */ + +Query.prototype.lean = function(v) { + this._mongooseOptions.lean = arguments.length ? v : true; + return this; +}; + +/** + * Adds a `$set` to this query's update without changing the operation. + * This is useful for query middleware so you can add an update regardless + * of whether you use `updateOne()`, `updateMany()`, `findOneAndUpdate()`, etc. + * + * #### Example: + * + * // Updates `{ $set: { updatedAt: new Date() } }` + * new Query().updateOne({}, {}).set('updatedAt', new Date()); + * new Query().updateMany({}, {}).set({ updatedAt: new Date() }); + * + * @param {String|Object} path path or object of key/value pairs to set + * @param {Any} [val] the value to set + * @return {Query} this + * @api public + */ + +Query.prototype.set = function(path, val) { + if (typeof path === 'object') { + const keys = Object.keys(path); + for (const key of keys) { + this.set(key, path[key]); + } + return this; + } + + this._update = this._update || {}; + if (path in this._update) { + delete this._update[path]; + } + this._update.$set = this._update.$set || {}; + this._update.$set[path] = val; + return this; +}; + +/** + * For update operations, returns the value of a path in the update's `$set`. + * Useful for writing getters/setters that can work with both update operations + * and `save()`. + * + * #### Example: + * + * const query = Model.updateOne({}, { $set: { name: 'Jean-Luc Picard' } }); + * query.get('name'); // 'Jean-Luc Picard' + * + * @param {String|Object} path path or object of key/value pairs to get + * @return {Query} this + * @api public + */ + +Query.prototype.get = function get(path) { + const update = this._update; + if (update == null) { + return void 0; + } + const $set = update.$set; + if ($set == null) { + return update[path]; + } + + if (utils.hasUserDefinedProperty(update, path)) { + return update[path]; + } + if (utils.hasUserDefinedProperty($set, path)) { + return $set[path]; + } + + return void 0; +}; + +/** + * Gets/sets the error flag on this query. If this flag is not null or + * undefined, the `exec()` promise will reject without executing. + * + * #### Example: + * + * Query().error(); // Get current error value + * Query().error(null); // Unset the current error + * Query().error(new Error('test')); // `exec()` will resolve with test + * Schema.pre('find', function() { + * if (!this.getQuery().userId) { + * this.error(new Error('Not allowed to query without setting userId')); + * } + * }); + * + * Note that query casting runs **after** hooks, so cast errors will override + * custom errors. + * + * #### Example: + * + * const TestSchema = new Schema({ num: Number }); + * const TestModel = db.model('Test', TestSchema); + * TestModel.find({ num: 'not a number' }).error(new Error('woops')).exec(function(error) { + * // `error` will be a cast error because `num` failed to cast + * }); + * + * @param {Error|null} err if set, `exec()` will fail fast before sending the query to MongoDB + * @return {Query} this + * @api public + */ + +Query.prototype.error = function error(err) { + if (arguments.length === 0) { + return this._error; + } + + this._error = err; + return this; +}; + +/** + * ignore + * @method _unsetCastError + * @instance + * @memberOf Query + * @api private + */ + +Query.prototype._unsetCastError = function _unsetCastError() { + if (this._error != null && !(this._error instanceof CastError)) { + return; + } + return this.error(null); +}; + +/** + * Getter/setter around the current mongoose-specific options for this query + * Below are the current Mongoose-specific options. + * + * - `populate`: an array representing what paths will be populated. Should have one entry for each call to [`Query.prototype.populate()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.populate()) + * - `lean`: if truthy, Mongoose will not [hydrate](https://mongoosejs.com/docs/api/model.html#Model.hydrate()) any documents that are returned from this query. See [`Query.prototype.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) for more information. + * - `strict`: controls how Mongoose handles keys that aren't in the schema for updates. This option is `true` by default, which means Mongoose will silently strip any paths in the update that aren't in the schema. See the [`strict` mode docs](https://mongoosejs.com/docs/guide.html#strict) for more information. + * - `strictQuery`: controls how Mongoose handles keys that aren't in the schema for the query `filter`. This option is `false` by default, which means Mongoose will allow `Model.find({ foo: 'bar' })` even if `foo` is not in the schema. See the [`strictQuery` docs](https://mongoosejs.com/docs/guide.html#strictQuery) for more information. + * - `nearSphere`: use `$nearSphere` instead of `near()`. See the [`Query.prototype.nearSphere()` docs](https://mongoosejs.com/docs/api/query.html#Query.prototype.nearSphere()) + * + * Mongoose maintains a separate object for internal options because + * Mongoose sends `Query.prototype.options` to the MongoDB server, and the + * above options are not relevant for the MongoDB server. + * + * @param {Object} options if specified, overwrites the current options + * @return {Object} the options + * @api public + */ + +Query.prototype.mongooseOptions = function(v) { + if (arguments.length > 0) { + this._mongooseOptions = v; + } + return this._mongooseOptions; +}; + +/** + * ignore + * @method _castConditions + * @memberOf Query + * @api private + * @instance + */ + +Query.prototype._castConditions = function() { + let sanitizeFilterOpt = undefined; + if (this.model != null && utils.hasUserDefinedProperty(this.model.db.options, 'sanitizeFilter')) { + sanitizeFilterOpt = this.model.db.options.sanitizeFilter; + } else if (this.model != null && utils.hasUserDefinedProperty(this.model.base.options, 'sanitizeFilter')) { + sanitizeFilterOpt = this.model.base.options.sanitizeFilter; + } else { + sanitizeFilterOpt = this._mongooseOptions.sanitizeFilter; + } + + if (sanitizeFilterOpt) { + sanitizeFilter(this._conditions); + } + + try { + this.cast(this.model); + this._unsetCastError(); + } catch (err) { + this.error(err); + } +}; + +/*! + * ignore + */ + +function _castArrayFilters(query) { + try { + castArrayFilters(query); + } catch (err) { + query.error(err); + } +} + +/** + * Execute a `find()` + * + * @return {Query} this + * @api private + */ +Query.prototype._find = async function _find() { + this._applyTranslateAliases(); + this._castConditions(); + + if (this.error() != null) { + throw this.error(); + } + + const mongooseOptions = this._mongooseOptions; + const _this = this; + const userProvidedFields = _this._userProvidedFields || {}; + + applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options); + applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options); + + // Separate options to pass down to `completeMany()` in case we need to + // set a session on the document + const completeManyOptions = Object.assign({}, { + session: this && this.options && this.options.session || null, + lean: mongooseOptions.lean || null + }); + + const options = this._optionsForExec(); + + const filter = this._conditions; + const fields = options.projection; + + const cursor = await this.mongooseCollection.find(filter, options); + if (options.explain) { + return cursor.explain(); + } + + let docs = await cursor.toArray(); + if (docs.length === 0) { + return docs; + } + + if (!mongooseOptions.populate) { + const versionKey = _this.schema.options.versionKey; + if (mongooseOptions.lean && mongooseOptions.lean.versionKey === false && versionKey) { + docs.forEach((doc) => { + if (versionKey in doc) { + delete doc[versionKey]; + } + }); + } + return mongooseOptions.lean ? + _completeManyLean(_this.model.schema, docs, null, completeManyOptions) : + _this._completeMany(docs, fields, userProvidedFields, completeManyOptions); + } + const pop = helpers.preparePopulationOptionsMQ(_this, mongooseOptions); + + if (mongooseOptions.lean) { + return _this.model.populate(docs, pop); + } + + docs = await _this._completeMany(docs, fields, userProvidedFields, completeManyOptions); + await this.model.populate(docs, pop); + + return docs; +}; + +/** + * Find all documents that match `selector`. The result will be an array of documents. + * + * If there are too many documents in the result to fit in memory, use + * [`Query.prototype.cursor()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.cursor()) + * + * #### Example: + * + * const arr = await Movie.find({ year: { $gte: 1980, $lte: 1989 } }); + * + * @param {Object|ObjectId} [filter] mongodb filter. If not specified, returns all documents. + * @return {Query} this + * @api public + */ + +Query.prototype.find = function(conditions) { + if (typeof conditions === 'function' || + typeof arguments[1] === 'function') { + throw new MongooseError('Query.prototype.find() no longer accepts a callback'); + } + + this.op = 'find'; + + if (mquery.canMerge(conditions)) { + this.merge(conditions); + + prepareDiscriminatorCriteria(this); + } else if (conditions != null) { + this.error(new ObjectParameterError(conditions, 'filter', 'find')); + } + + return this; +}; + +/** + * Merges another Query or conditions object into this one. + * + * When a Query is passed, conditions, field selection and options are merged. + * + * @param {Query|Object} source + * @return {Query} this + */ + +Query.prototype.merge = function(source) { + if (!source) { + return this; + } + + const opts = { overwrite: true }; + + if (source instanceof Query) { + // if source has a feature, apply it to ourselves + + if (source._conditions) { + opts.omit = {}; + if (this._conditions && this._conditions.$and && source._conditions.$and) { + opts.omit['$and'] = true; + this._conditions.$and = this._conditions.$and.concat(source._conditions.$and); + } + if (this._conditions && this._conditions.$or && source._conditions.$or) { + opts.omit['$or'] = true; + this._conditions.$or = this._conditions.$or.concat(source._conditions.$or); + } + utils.merge(this._conditions, source._conditions, opts); + } + + if (source._fields) { + this._fields || (this._fields = {}); + utils.merge(this._fields, source._fields, opts); + } + + if (source.options) { + this.options || (this.options = {}); + utils.merge(this.options, source.options, opts); + } + + if (source._update) { + this._update || (this._update = {}); + utils.mergeClone(this._update, source._update); + } + + if (source._distinct) { + this._distinct = source._distinct; + } + + utils.merge(this._mongooseOptions, source._mongooseOptions); + + return this; + } else if (this.model != null && source instanceof this.model.base.Types.ObjectId) { + utils.merge(this._conditions, { _id: source }, opts); + + return this; + } else if (source && source.$__) { + source = source.toObject(internalToObjectOptions); + } + + opts.omit = {}; + if (source.$and) { + opts.omit['$and'] = true; + if (!this._conditions) { + this._conditions = {}; + } + this._conditions.$and = (this._conditions.$and || []).concat(source.$and); + } + if (source.$or) { + opts.omit['$or'] = true; + if (!this._conditions) { + this._conditions = {}; + } + this._conditions.$or = (this._conditions.$or || []).concat(source.$or); + } + + // plain object + utils.merge(this._conditions, source, opts); + + return this; +}; + +/** + * Adds a collation to this op (MongoDB 3.4 and up) + * + * @param {Object} value + * @return {Query} this + * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/method/cursor.collation/#cursor.collation + * @api public + */ + +Query.prototype.collation = function(value) { + if (this.options == null) { + this.options = {}; + } + this.options.collation = value; + return this; +}; + +/** + * Hydrate a single doc from `findOne()`, `findOneAndUpdate()`, etc. + * + * @api private + */ + +Query.prototype._completeOne = function(doc, res, callback) { + if (!doc && !this.options.includeResultMetadata) { + return callback(null, null); + } + + const model = this.model; + const projection = clone(this._fields); + const userProvidedFields = this._userProvidedFields || {}; + // `populate`, `lean` + const mongooseOptions = this._mongooseOptions; + + const options = this.options; + if (!options.lean && mongooseOptions.lean) { + options.lean = mongooseOptions.lean; + } + + if (options.explain) { + return callback(null, doc); + } + + if (!mongooseOptions.populate) { + const versionKey = this.schema.options.versionKey; + if (mongooseOptions.lean && mongooseOptions.lean.versionKey === false && versionKey) { + if (versionKey in doc) { + delete doc[versionKey]; + } + } + return mongooseOptions.lean ? + _completeOneLean(model.schema, doc, null, res, options, callback) : + completeOne(model, doc, res, options, projection, userProvidedFields, + null, callback); + } + + const pop = helpers.preparePopulationOptionsMQ(this, this._mongooseOptions); + if (mongooseOptions.lean) { + return model.populate(doc, pop).then( + doc => { + _completeOneLean(model.schema, doc, null, res, options, callback); + }, + error => { + callback(error); + } + ); + } + + completeOne(model, doc, res, options, projection, userProvidedFields, [], (err, doc) => { + if (err != null) { + return callback(err); + } + model.populate(doc, pop).then(res => { callback(null, res); }, err => { callback(err); }); + }); +}; + +/** + * Given a model and an array of docs, hydrates all the docs to be instances + * of the model. Used to initialize docs returned from the db from `find()` + * + * @param {Array} docs + * @param {Object} fields the projection used, including `select` from schemas + * @param {Object} userProvidedFields the user-specified projection + * @param {Object} [opts] + * @param {Array} [opts.populated] + * @param {ClientSession} [opts.session] + * @api private + */ + +Query.prototype._completeMany = async function _completeMany(docs, fields, userProvidedFields, opts) { + const model = this.model; + return Promise.all(docs.map(doc => new Promise((resolve, reject) => { + const rawDoc = doc; + doc = helpers.createModel(model, doc, fields, userProvidedFields); + if (opts.session != null) { + doc.$session(opts.session); + } + doc.$init(rawDoc, opts, (err) => { + if (err != null) { + return reject(err); + } + resolve(doc); + }); + }))); +}; + +/** + * Internal helper to execute a findOne() operation + * + * @see findOne https://www.mongodb.com/docs/manual/reference/method/db.collection.findOne/ + * @api private + */ + +Query.prototype._findOne = async function _findOne() { + this._applyTranslateAliases(); + this._castConditions(); + + if (this.error()) { + const err = this.error(); + throw err; + } + + applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options); + applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options); + + const options = this._optionsForExec(); + + // don't pass in the conditions because we already merged them in + const doc = await this.mongooseCollection.findOne(this._conditions, options); + return new Promise((resolve, reject) => { + this._completeOne(doc, null, (err, res) => { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * Declares the query a findOne operation. When executed, the first found document is passed to the callback. + * + * The result of the query is a single document, or `null` if no document was found. + * + * * *Note:* `conditions` is optional, and if `conditions` is null or undefined, + * mongoose will send an empty `findOne` command to MongoDB, which will return + * an arbitrary document. If you're querying by `_id`, use `Model.findById()` + * instead. + * + * This function triggers the following middleware. + * + * - `findOne()` + * + * #### Example: + * + * const query = Kitten.where({ color: 'white' }); + * const kitten = await query.findOne(); + * + * @param {Object} [filter] mongodb selector + * @param {Object} [projection] optional fields to return + * @param {Object} [options] see [`setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} this + * @see findOne https://www.mongodb.com/docs/manual/reference/method/db.collection.findOne/ + * @see Query.select https://mongoosejs.com/docs/api/query.html#Query.prototype.select() + * @api public + */ + +Query.prototype.findOne = function(conditions, projection, options) { + if (typeof conditions === 'function' || + typeof projection === 'function' || + typeof options === 'function' || + typeof arguments[3] === 'function') { + throw new MongooseError('Query.prototype.findOne() no longer accepts a callback'); + } + + this.op = 'findOne'; + this._validateOp(); + + if (options) { + this.setOptions(options); + } + + if (projection) { + this.select(projection); + } + + if (mquery.canMerge(conditions)) { + this.merge(conditions); + + prepareDiscriminatorCriteria(this); + } else if (conditions != null) { + this.error(new ObjectParameterError(conditions, 'filter', 'findOne')); + } + + return this; +}; + + +/** + * Execute a countDocuments query + * + * @see countDocuments https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments + * @api private + */ + +Query.prototype._countDocuments = async function _countDocuments() { + this._applyTranslateAliases(); + + try { + this.cast(this.model); + } catch (err) { + this.error(err); + } + + if (this.error()) { + throw this.error(); + } + + applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options); + applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options); + + const options = this._optionsForExec(); + + const conds = this._conditions; + + return this.mongooseCollection.countDocuments(conds, options); +}; + +/*! + * If `translateAliases` option is set, call `Model.translateAliases()` + * on the following query properties: filter, projection, update, distinct. + */ + +Query.prototype._applyTranslateAliases = function _applyTranslateAliases() { + let applyTranslateAliases = false; + if ('translateAliases' in this._mongooseOptions) { + applyTranslateAliases = this._mongooseOptions.translateAliases; + } else if (this.model?.schema?._userProvidedOptions?.translateAliases != null) { + applyTranslateAliases = this.model.schema._userProvidedOptions.translateAliases; + } else if (this.model?.base?.options?.translateAliases != null) { + applyTranslateAliases = this.model.base.options.translateAliases; + } + if (!applyTranslateAliases) { + return; + } + + if (this.model?.schema?.aliases && Object.keys(this.model.schema.aliases).length > 0) { + this.model.translateAliases(this._conditions, true); + this.model.translateAliases(this._fields, true); + this.model.translateAliases(this._update, true); + if (this._distinct != null && this.model.schema.aliases[this._distinct] != null) { + this._distinct = this.model.schema.aliases[this._distinct]; + } + } +}; + +/** + * Execute a estimatedDocumentCount() query + * + * @see estimatedDocumentCount https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#estimatedDocumentCount + * @api private + */ + +Query.prototype._estimatedDocumentCount = async function _estimatedDocumentCount() { + if (this.error()) { + throw this.error(); + } + + const options = this._optionsForExec(); + + return this.mongooseCollection.estimatedDocumentCount(options); +}; + +/** + * Specifies this query as a `estimatedDocumentCount()` query. Faster than + * using `countDocuments()` for large collections because + * `estimatedDocumentCount()` uses collection metadata rather than scanning + * the entire collection. + * + * `estimatedDocumentCount()` does **not** accept a filter. `Model.find({ foo: bar }).estimatedDocumentCount()` + * is equivalent to `Model.find().estimatedDocumentCount()` + * + * This function triggers the following middleware. + * + * - `estimatedDocumentCount()` + * + * #### Example: + * + * await Model.find().estimatedDocumentCount(); + * + * @param {Object} [options] passed transparently to the [MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/EstimatedDocumentCountOptions.html) + * @return {Query} this + * @see estimatedDocumentCount https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#estimatedDocumentCount + * @api public + */ + +Query.prototype.estimatedDocumentCount = function(options) { + if (typeof options === 'function' || + typeof arguments[1] === 'function') { + throw new MongooseError('Query.prototype.estimatedDocumentCount() no longer accepts a callback'); + } + + this.op = 'estimatedDocumentCount'; + this._validateOp(); + + if (typeof options === 'object' && options != null) { + this.setOptions(options); + } + + return this; +}; + +/** + * Specifies this query as a `countDocuments()` query. Behaves like `count()`, + * except it always does a full collection scan when passed an empty filter `{}`. + * + * There are also minor differences in how `countDocuments()` handles + * [`$where` and a couple geospatial operators](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments). + * versus `count()`. + * + * This function triggers the following middleware. + * + * - `countDocuments()` + * + * #### Example: + * + * const countQuery = model.where({ 'color': 'black' }).countDocuments(); + * + * query.countDocuments({ color: 'black' }).count().exec(); + * + * await query.countDocuments({ color: 'black' }); + * + * query.where('color', 'black').countDocuments().exec(); + * + * The `countDocuments()` function is similar to `count()`, but there are a + * [few operators that `countDocuments()` does not support](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments). + * Below are the operators that `count()` supports but `countDocuments()` does not, + * and the suggested replacement: + * + * - `$where`: [`$expr`](https://www.mongodb.com/docs/manual/reference/operator/query/expr/) + * - `$near`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$center`](https://www.mongodb.com/docs/manual/reference/operator/query/center/#op._S_center) + * - `$nearSphere`: [`$geoWithin`](https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/) with [`$centerSphere`](https://www.mongodb.com/docs/manual/reference/operator/query/centerSphere/#op._S_centerSphere) + * + * @param {Object} [filter] mongodb selector + * @param {Object} [options] + * @return {Query} this + * @see countDocuments https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#countDocuments + * @api public + */ + +Query.prototype.countDocuments = function(conditions, options) { + if (typeof conditions === 'function' || + typeof options === 'function' || + typeof arguments[2] === 'function') { + throw new MongooseError('Query.prototype.countDocuments() no longer accepts a callback'); + } + + this.op = 'countDocuments'; + this._validateOp(); + + if (mquery.canMerge(conditions)) { + this.merge(conditions); + } + + if (typeof options === 'object' && options != null) { + this.setOptions(options); + } + + return this; +}; + +/** + * Execute a `distinct()` query + * + * @see distinct https://www.mongodb.com/docs/manual/reference/method/db.collection.distinct/ + * @api private + */ + +Query.prototype.__distinct = async function __distinct() { + this._applyTranslateAliases(); + this._castConditions(); + + if (this.error()) { + throw this.error(); + } + + applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options); + applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options); + + const options = this._optionsForExec(); + + return this.mongooseCollection. + distinct(this._distinct, this._conditions, options); +}; + +/** + * Declares or executes a distinct() operation. + * + * This function does not trigger any middleware. + * + * #### Example: + * + * distinct(field, conditions) + * distinct(field) + * distinct() + * + * @param {String} [field] + * @param {Object|Query} [filter] + * @return {Query} this + * @see distinct https://www.mongodb.com/docs/manual/reference/method/db.collection.distinct/ + * @api public + */ + +Query.prototype.distinct = function(field, conditions) { + if (typeof field === 'function' || + typeof conditions === 'function' || + typeof arguments[2] === 'function') { + throw new MongooseError('Query.prototype.distinct() no longer accepts a callback'); + } + + this.op = 'distinct'; + this._validateOp(); + + if (mquery.canMerge(conditions)) { + this.merge(conditions); + + prepareDiscriminatorCriteria(this); + } else if (conditions != null) { + this.error(new ObjectParameterError(conditions, 'filter', 'distinct')); + } + + if (field != null) { + this._distinct = field; + } + + return this; +}; + +/** + * Sets the sort order + * + * If an object is passed, values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`. + * + * If a string is passed, it must be a space delimited list of path names. The + * sort order of each path is ascending unless the path name is prefixed with `-` + * which will be treated as descending. + * + * #### Example: + * + * // sort by "field" ascending and "test" descending + * query.sort({ field: 'asc', test: -1 }); + * + * // equivalent + * query.sort('field -test'); + * + * // also possible is to use a array with array key-value pairs + * query.sort([['field', 'asc']]); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @param {Object|String|Array>} arg + * @param {Object} [options] + * @param {Boolean} [options.override=false] If true, replace existing sort options with `arg` + * @return {Query} this + * @see cursor.sort https://www.mongodb.com/docs/manual/reference/method/cursor.sort/ + * @api public + */ + +Query.prototype.sort = function(arg, options) { + if (arguments.length > 2) { + throw new Error('sort() takes at most 2 arguments'); + } + if (options != null && typeof options !== 'object') { + throw new Error('sort() options argument must be an object or nullish'); + } + + if (this.options.sort == null) { + this.options.sort = {}; + } + if (options && options.override) { + this.options.sort = {}; + } + const sort = this.options.sort; + if (typeof arg === 'string') { + const properties = arg.indexOf(' ') === -1 ? [arg] : arg.split(' '); + for (let property of properties) { + const ascend = '-' == property[0] ? -1 : 1; + if (ascend === -1) { + property = property.slice(1); + } + if (specialProperties.has(property)) { + continue; + } + sort[property] = ascend; + } + } else if (Array.isArray(arg)) { + for (const pair of arg) { + if (!Array.isArray(pair)) { + throw new TypeError('Invalid sort() argument, must be array of arrays'); + } + const key = '' + pair[0]; + if (specialProperties.has(key)) { + continue; + } + sort[key] = _handleSortValue(pair[1], key); + } + } else if (typeof arg === 'object' && arg != null && !(arg instanceof Map)) { + for (const key of Object.keys(arg)) { + if (specialProperties.has(key)) { + continue; + } + sort[key] = _handleSortValue(arg[key], key); + } + } else if (arg instanceof Map) { + for (let key of arg.keys()) { + key = '' + key; + if (specialProperties.has(key)) { + continue; + } + sort[key] = _handleSortValue(arg.get(key), key); + } + } else if (arg != null) { + throw new TypeError('Invalid sort() argument. Must be a string, object, array, or map.'); + } + + return this; +}; + +/*! + * Convert sort values + */ + +function _handleSortValue(val, key) { + if (val === 1 || val === 'asc' || val === 'ascending') { + return 1; + } + if (val === -1 || val === 'desc' || val === 'descending') { + return -1; + } + if (val?.$meta != null) { + return { $meta: val.$meta }; + } + throw new TypeError('Invalid sort value: { ' + key + ': ' + val + ' }'); +} + +/** + * Declare and/or execute this query as a `deleteOne()` operation. Works like + * remove, except it deletes at most one document regardless of the `single` + * option. + * + * This function triggers `deleteOne` middleware. + * + * #### Example: + * + * await Character.deleteOne({ name: 'Eddard Stark' }); + * + * This function calls the MongoDB driver's [`Collection#deleteOne()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteOne). + * The returned [promise](https://mongoosejs.com/docs/queries.html) resolves to an + * object that contains 3 properties: + * + * - `ok`: `1` if no errors occurred + * - `deletedCount`: the number of documents deleted + * - `n`: the number of documents deleted. Equal to `deletedCount`. + * + * #### Example: + * + * const res = await Character.deleteOne({ name: 'Eddard Stark' }); + * // `1` if MongoDB deleted a doc, `0` if no docs matched the filter `{ name: ... }` + * res.deletedCount; + * + * @param {Object|Query} [filter] mongodb selector + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @return {Query} this + * @see DeleteResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/DeleteResult.html + * @see deleteOne https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteOne + * @api public + */ + +Query.prototype.deleteOne = function deleteOne(filter, options) { + if (typeof filter === 'function' || typeof options === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Query.prototype.deleteOne() no longer accepts a callback'); + } + this.op = 'deleteOne'; + this.setOptions(options); + + if (mquery.canMerge(filter)) { + this.merge(filter); + + prepareDiscriminatorCriteria(this); + } else if (filter != null) { + this.error(new ObjectParameterError(filter, 'filter', 'deleteOne')); + } + + return this; +}; + +/** + * Internal thunk for `deleteOne()` + * + * @method _deleteOne + * @instance + * @memberOf Query + * @api private + */ + +Query.prototype._deleteOne = async function _deleteOne() { + this._applyTranslateAliases(); + this._castConditions(); + + if (this.error() != null) { + throw this.error(); + } + + const options = this._optionsForExec(); + + return this.mongooseCollection.deleteOne(this._conditions, options); +}; + +/** + * Declare and/or execute this query as a `deleteMany()` operation. Works like + * remove, except it deletes _every_ document that matches `filter` in the + * collection, regardless of the value of `single`. + * + * This function triggers `deleteMany` middleware. + * + * #### Example: + * + * await Character.deleteMany({ name: /Stark/, age: { $gte: 18 } }); + * + * This function calls the MongoDB driver's [`Collection#deleteMany()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteMany). + * The returned [promise](https://mongoosejs.com/docs/queries.html) resolves to an + * object that contains 3 properties: + * + * - `ok`: `1` if no errors occurred + * - `deletedCount`: the number of documents deleted + * - `n`: the number of documents deleted. Equal to `deletedCount`. + * + * #### Example: + * + * const res = await Character.deleteMany({ name: /Stark/, age: { $gte: 18 } }); + * // `0` if no docs matched the filter, number of docs deleted otherwise + * res.deletedCount; + * + * @param {Object|Query} [filter] mongodb selector + * @param {Object} [options] optional see [`Query.prototype.setOptions()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.setOptions()) + * @return {Query} this + * @see DeleteResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/DeleteResult.html + * @see deleteMany https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#deleteMany + * @api public + */ + +Query.prototype.deleteMany = function(filter, options) { + if (typeof filter === 'function' || typeof options === 'function' || typeof arguments[2] === 'function') { + throw new MongooseError('Query.prototype.deleteMany() no longer accepts a callback'); + } + this.setOptions(options); + this.op = 'deleteMany'; + + if (mquery.canMerge(filter)) { + this.merge(filter); + + prepareDiscriminatorCriteria(this); + } else if (filter != null) { + this.error(new ObjectParameterError(filter, 'filter', 'deleteMany')); + } + + return this; +}; + +/** + * Execute a `deleteMany()` query + * + * @param {Function} callback + * @method _deleteMany + * @instance + * @memberOf Query + * @api private + */ + +Query.prototype._deleteMany = async function _deleteMany() { + this._applyTranslateAliases(); + this._castConditions(); + + if (this.error() != null) { + throw this.error(); + } + + const options = this._optionsForExec(); + + return this.mongooseCollection.deleteMany(this._conditions, options); +}; + +/** + * hydrates a document + * + * @param {Model} model + * @param {Document} doc + * @param {Object} res 3rd parameter to callback + * @param {Object} fields + * @param {Query} self + * @param {Array} [pop] array of paths used in population + * @param {Function} callback + * @api private + */ + +function completeOne(model, doc, res, options, fields, userProvidedFields, pop, callback) { + if (options.includeResultMetadata && doc == null) { + _init(null); + return null; + } + + helpers.createModelAndInit(model, doc, fields, userProvidedFields, options, pop, _init); + + function _init(err, casted) { + if (err) { + return immediate(() => callback(err)); + } + + + if (options.includeResultMetadata) { + if (doc && casted) { + if (options.session != null) { + casted.$session(options.session); + } + res.value = casted; + } else { + res.value = null; + } + return immediate(() => callback(null, res)); + } + if (options.session != null) { + casted.$session(options.session); + } + immediate(() => callback(null, casted)); + } +} + +/** + * If the model is a discriminator type and not root, then add the key & value to the criteria. + * @param {Query} query + * @api private + */ + +function prepareDiscriminatorCriteria(query) { + if (!query || !query.model || !query.model.schema) { + return; + } + + const schema = query.model.schema; + + if (schema && schema.discriminatorMapping && !schema.discriminatorMapping.isRoot) { + query._conditions[schema.discriminatorMapping.key] = schema.discriminatorMapping.value; + } +} + +/** + * Issues a mongodb `findOneAndUpdate()` command. + * + * Finds a matching document, updates it according to the `update` arg, passing any `options`, and returns the found + * document (if any). + * + * This function triggers the following middleware. + * + * - `findOneAndUpdate()` + * + * #### Available options + * + * - `new`: bool - if true, return the modified document rather than the original. defaults to false (changed in 4.0) + * - `upsert`: bool - creates the object if it doesn't exist. defaults to false. + * - `fields`: {Object|String} - Field selection. Equivalent to `.select(fields).findOneAndUpdate()` + * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update + * - `maxTimeMS`: puts a time limit on the query - requires mongodb >= 2.6.0 + * - `runValidators`: if true, runs [update validators](https://mongoosejs.com/docs/validation.html#update-validators) on this command. Update validators validate the update operation against the model's schema. + * - `setDefaultsOnInsert`: `true` by default. If `setDefaultsOnInsert` and `upsert` are true, mongoose will apply the [defaults](https://mongoosejs.com/docs/defaults.html) specified in the model's schema if a new document is created. + * + * #### Example: + * + * query.findOneAndUpdate(conditions, update, options) // returns Query + * query.findOneAndUpdate(conditions, update) // returns Query + * query.findOneAndUpdate(update) // returns Query + * query.findOneAndUpdate() // returns Query + * + * @method findOneAndUpdate + * @memberOf Query + * @instance + * @param {Object|Query} [filter] + * @param {Object} [doc] + * @param {Object} [options] + * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors. + * @param {Boolean} [options.new=false] By default, `findOneAndUpdate()` returns the document as it was **before** `update` was applied. If you set `new: true`, `findOneAndUpdate()` will instead give you the object after `update` was applied. + * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html). + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.returnOriginal=null] An alias for the `new` option. `returnOriginal: false` is equivalent to `new: true`. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @see Tutorial https://mongoosejs.com/docs/tutorials/findoneandupdate.html + * @see findAndModify command https://www.mongodb.com/docs/manual/reference/command/findAndModify/ + * @see ModifyResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html + * @see findOneAndUpdate https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#findOneAndUpdate + * @return {Query} this + * @api public + */ + +Query.prototype.findOneAndUpdate = function(filter, doc, options) { + if (typeof filter === 'function' || + typeof doc === 'function' || + typeof options === 'function' || + typeof arguments[3] === 'function') { + throw new MongooseError('Query.prototype.findOneAndUpdate() no longer accepts a callback'); + } + + this.op = 'findOneAndUpdate'; + this._validateOp(); + this._validate(); + + switch (arguments.length) { + case 2: + options = undefined; + break; + case 1: + doc = filter; + filter = options = undefined; + break; + } + + if (mquery.canMerge(filter)) { + this.merge(filter); + } else if (filter != null) { + this.error( + new ObjectParameterError(filter, 'filter', 'findOneAndUpdate') + ); + } + + // apply doc + if (doc) { + this._mergeUpdate(doc); + } + + options = options ? clone(options) : {}; + + if (options.projection) { + this.select(options.projection); + delete options.projection; + } + if (options.fields) { + this.select(options.fields); + delete options.fields; + } + + const returnOriginal = this && + this.model && + this.model.base && + this.model.base.options && + this.model.base.options.returnOriginal; + if (options.new == null && options.returnDocument == null && options.returnOriginal == null && returnOriginal != null) { + options.returnOriginal = returnOriginal; + } + + this.setOptions(options); + + return this; +}; + +/** + * Execute a findOneAndUpdate operation + * + * @method _findOneAndUpdate + * @memberOf Query + * @api private + */ + +Query.prototype._findOneAndUpdate = async function _findOneAndUpdate() { + this._applyTranslateAliases(); + this._castConditions(); + + _castArrayFilters(this); + + if (this.error()) { + throw this.error(); + } + + applyGlobalMaxTimeMS(this.options, this.model.db.options, this.model.base.options); + applyGlobalDiskUse(this.options, this.model.db.options, this.model.base.options); + + if ('strict' in this.options) { + this._mongooseOptions.strict = this.options.strict; + } + const options = this._optionsForExec(this.model); + convertNewToReturnDocument(options); + + this._update = this._castUpdate(this._update); + + const _opts = Object.assign({}, options, { + setDefaultsOnInsert: this._mongooseOptions.setDefaultsOnInsert + }); + this._update = setDefaultsOnInsert(this._conditions, this.model.schema, + this._update, _opts); + + if (!this._update || Object.keys(this._update).length === 0) { + if (options.upsert) { + // still need to do the upsert to empty doc + const doc = clone(this._update); + delete doc._id; + this._update = { $set: doc }; + } else { + this._executionStack = null; + const res = await this._findOne(); + return res; + } + } else if (this._update instanceof Error) { + throw this._update; + } else { + // In order to make MongoDB 2.6 happy (see + // https://jira.mongodb.org/browse/SERVER-12266 and related issues) + // if we have an actual update document but $set is empty, junk the $set. + if (this._update.$set && Object.keys(this._update.$set).length === 0) { + delete this._update.$set; + } + } + + const runValidators = _getOption(this, 'runValidators', false); + if (runValidators) { + await this.validate(this._update, options, false); + } + + if (this._update.toBSON) { + this._update = this._update.toBSON(); + } + + let res = await this.mongooseCollection.findOneAndUpdate(this._conditions, this._update, options); + for (const fn of this._transforms) { + res = fn(res); + } + const doc = !options.includeResultMetadata ? res : res.value; + + return new Promise((resolve, reject) => { + this._completeOne(doc, res, (err, res) => { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * Issues a MongoDB [findOneAndDelete](https://www.mongodb.com/docs/manual/reference/method/db.collection.findOneAndDelete/) command. + * + * Finds a matching document, removes it, and returns the found document (if any). + * + * This function triggers the following middleware. + * + * - `findOneAndDelete()` + * + * #### Available options + * + * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update + * - `maxTimeMS`: puts a time limit on the query - requires mongodb >= 2.6.0 + * + * #### Callback Signature + * + * function(error, doc) { + * // error: any errors that occurred + * // doc: the document before updates are applied if `new: false`, or after updates if `new = true` + * } + * + * #### Example: + * + * A.where().findOneAndDelete(conditions, options) // return Query + * A.where().findOneAndDelete(conditions) // returns Query + * A.where().findOneAndDelete() // returns Query + * + * @method findOneAndDelete + * @memberOf Query + * @param {Object} [filter] + * @param {Object} [options] + * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @return {Query} this + * @see findAndModify command https://www.mongodb.com/docs/manual/reference/command/findAndModify/ + * @api public + */ + +Query.prototype.findOneAndDelete = function(filter, options) { + if (typeof filter === 'function' || + typeof options === 'function' || + typeof arguments[2] === 'function') { + throw new MongooseError('Query.prototype.findOneAndDelete() no longer accepts a callback'); + } + + this.op = 'findOneAndDelete'; + this._validateOp(); + this._validate(); + + if (mquery.canMerge(filter)) { + this.merge(filter); + } + + options && this.setOptions(options); + + return this; +}; + +/** + * Execute a `findOneAndDelete()` query + * + * @return {Query} this + * @method _findOneAndDelete + * @memberOf Query + * @api private + */ +Query.prototype._findOneAndDelete = async function _findOneAndDelete() { + this._applyTranslateAliases(); + this._castConditions(); + + if (this.error() != null) { + throw this.error(); + } + + const includeResultMetadata = this.options.includeResultMetadata; + + const filter = this._conditions; + const options = this._optionsForExec(this.model); + + let res = await this.mongooseCollection.findOneAndDelete(filter, options); + for (const fn of this._transforms) { + res = fn(res); + } + const doc = !includeResultMetadata ? res : res.value; + + return new Promise((resolve, reject) => { + this._completeOne(doc, res, (err, res) => { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * Issues a MongoDB [findOneAndReplace](https://www.mongodb.com/docs/manual/reference/method/db.collection.findOneAndReplace/) command. + * + * Finds a matching document, removes it, and returns the found document (if any). + * + * This function triggers the following middleware. + * + * - `findOneAndReplace()` + * + * #### Available options + * + * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update + * - `maxTimeMS`: puts a time limit on the query - requires mongodb >= 2.6.0 + * - `includeResultMetadata`: if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * + * #### Callback Signature + * + * function(error, doc) { + * // error: any errors that occurred + * // doc: the document before updates are applied if `new: false`, or after updates if `new = true` + * } + * + * #### Example: + * + * A.where().findOneAndReplace(filter, replacement, options); // return Query + * A.where().findOneAndReplace(filter); // returns Query + * A.where().findOneAndReplace(); // returns Query + * + * @method findOneAndReplace + * @memberOf Query + * @param {Object} [filter] + * @param {Object} [replacement] + * @param {Object} [options] + * @param {Boolean} [options.includeResultMetadata] if true, returns the full [ModifyResult from the MongoDB driver](https://mongodb.github.io/node-mongodb-native/4.9/interfaces/ModifyResult.html) rather than just the document + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.new=false] By default, `findOneAndUpdate()` returns the document as it was **before** `update` was applied. If you set `new: true`, `findOneAndUpdate()` will instead give you the object after `update` was applied. + * @param {Object} [options.lean] if truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. See [`Query.lean()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.lean()) and [the Mongoose lean tutorial](https://mongoosejs.com/docs/tutorials/lean.html). + * @param {ClientSession} [options.session=null] The session associated with this query. See [transactions docs](https://mongoosejs.com/docs/transactions.html). + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.returnOriginal=null] An alias for the `new` option. `returnOriginal: false` is equivalent to `new: true`. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @return {Query} this + * @api public + */ + +Query.prototype.findOneAndReplace = function(filter, replacement, options) { + if (typeof filter === 'function' || + typeof replacement === 'function' || + typeof options === 'function' || + typeof arguments[4] === 'function') { + throw new MongooseError('Query.prototype.findOneAndReplace() no longer accepts a callback'); + } + + this.op = 'findOneAndReplace'; + this._validateOp(); + this._validate(); + + if (mquery.canMerge(filter)) { + this.merge(filter); + } else if (filter != null) { + this.error( + new ObjectParameterError(filter, 'filter', 'findOneAndReplace') + ); + } + + if (replacement != null) { + this._mergeUpdate(replacement); + } + + options = options || {}; + + const returnOriginal = this && + this.model && + this.model.base && + this.model.base.options && + this.model.base.options.returnOriginal; + if (options.new == null && options.returnDocument == null && options.returnOriginal == null && returnOriginal != null) { + options.returnOriginal = returnOriginal; + } + this.setOptions(options); + + return this; +}; + +/** + * Execute a findOneAndReplace() query + * + * @return {Query} this + * @method _findOneAndReplace + * @instance + * @memberOf Query + * @api private + */ +Query.prototype._findOneAndReplace = async function _findOneAndReplace() { + this._applyTranslateAliases(); + this._castConditions(); + if (this.error() != null) { + throw this.error(); + } + + if ('strict' in this.options) { + this._mongooseOptions.strict = this.options.strict; + delete this.options.strict; + } + + const filter = this._conditions; + const options = this._optionsForExec(); + convertNewToReturnDocument(options); + + const includeResultMetadata = this.options.includeResultMetadata; + + const modelOpts = { skipId: true }; + if ('strict' in this._mongooseOptions) { + modelOpts.strict = this._mongooseOptions.strict; + } + + const runValidators = _getOption(this, 'runValidators', false); + + try { + const update = new this.model(this._update, null, modelOpts); + if (runValidators) { + await update.validate(); + } else if (update.$__.validationError) { + throw update.$__.validationError; + } + this._update = update.toBSON(); + } catch (err) { + if (err instanceof ValidationError) { + throw err; + } + const validationError = new ValidationError(); + validationError.errors[err.path] = err; + throw validationError; + } + + let res = await this.mongooseCollection.findOneAndReplace(filter, this._update, options); + + for (const fn of this._transforms) { + res = fn(res); + } + + const doc = !includeResultMetadata ? res : res.value; + return new Promise((resolve, reject) => { + this._completeOne(doc, res, (err, res) => { + if (err) { + return reject(err); + } + resolve(res); + }); + }); +}; + +/** + * Support the `new` option as an alternative to `returnOriginal` for backwards + * compat. + * @api private + */ + +function convertNewToReturnDocument(options) { + if ('new' in options) { + options.returnDocument = options['new'] ? 'after' : 'before'; + delete options['new']; + } + if ('returnOriginal' in options) { + options.returnDocument = options['returnOriginal'] ? 'before' : 'after'; + delete options['returnOriginal']; + } + // Temporary since driver 4.0.0-beta does not support `returnDocument` + if (typeof options.returnDocument === 'string') { + options.returnOriginal = options.returnDocument === 'before'; + } +} + +/** + * Get options from query opts, falling back to the base mongoose object. + * @param {Query} query + * @param {Object} option + * @param {Any} def + * @api private + */ + +function _getOption(query, option, def) { + const opts = query._optionsForExec(query.model); + + if (option in opts) { + return opts[option]; + } + if (option in query.model.base.options) { + return query.model.base.options[option]; + } + return def; +} + +/*! + * ignore + */ + +function _completeOneLean(schema, doc, path, res, opts, callback) { + if (opts.lean && typeof opts.lean.transform === 'function') { + opts.lean.transform(doc); + + for (let i = 0; i < schema.childSchemas.length; i++) { + const childPath = path ? path + '.' + schema.childSchemas[i].model.path : schema.childSchemas[i].model.path; + const _schema = schema.childSchemas[i].schema; + const obj = mpath.get(childPath, doc); + if (obj == null) { + continue; + } + if (Array.isArray(obj)) { + for (let i = 0; i < obj.length; i++) { + opts.lean.transform(obj[i]); + } + } else { + opts.lean.transform(obj); + } + _completeOneLean(_schema, obj, childPath, res, opts); + } + if (callback) { + return callback(null, doc); + } else { + return; + } + } + if (opts.includeResultMetadata) { + return callback(null, res); + } + return callback(null, doc); +} + +/*! + * ignore + */ + +function _completeManyLean(schema, docs, path, opts) { + if (opts.lean && typeof opts.lean.transform === 'function') { + for (const doc of docs) { + opts.lean.transform(doc); + } + + for (let i = 0; i < schema.childSchemas.length; i++) { + const childPath = path ? path + '.' + schema.childSchemas[i].model.path : schema.childSchemas[i].model.path; + const _schema = schema.childSchemas[i].schema; + let doc = mpath.get(childPath, docs); + if (doc == null) { + continue; + } + doc = doc.flat(); + for (let i = 0; i < doc.length; i++) { + opts.lean.transform(doc[i]); + } + _completeManyLean(_schema, doc, childPath, opts); + } + } + + return docs; +} +/** + * Override mquery.prototype._mergeUpdate to handle mongoose objects in + * updates. + * + * @param {Object} doc + * @method _mergeUpdate + * @memberOf Query + * @instance + * @api private + */ + +Query.prototype._mergeUpdate = function(doc) { + if (!this._update) { + this._update = Array.isArray(doc) ? [] : {}; + } + + if (doc == null || (typeof doc === 'object' && Object.keys(doc).length === 0)) { + return; + } + + if (doc instanceof Query) { + if (Array.isArray(this._update)) { + throw new Error('Cannot mix array and object updates'); + } + if (doc._update) { + utils.mergeClone(this._update, doc._update); + } + } else if (Array.isArray(doc)) { + if (!Array.isArray(this._update)) { + throw new Error('Cannot mix array and object updates'); + } + this._update = this._update.concat(doc); + } else { + if (Array.isArray(this._update)) { + throw new Error('Cannot mix array and object updates'); + } + utils.mergeClone(this._update, doc); + } +}; + +/*! + * ignore + */ + +async function _updateThunk(op) { + this._applyTranslateAliases(); + + this._castConditions(); + + _castArrayFilters(this); + + if (this.error() != null) { + throw this.error(); + } + + const castedQuery = this._conditions; + const options = this._optionsForExec(this.model); + + this._update = clone(this._update, options); + const isOverwriting = op === 'replaceOne'; + if (isOverwriting) { + this._update = new this.model(this._update, null, true); + } else { + this._update = this._castUpdate(this._update); + + if (this._update == null || Object.keys(this._update).length === 0) { + return { acknowledged: false }; + } + + const _opts = Object.assign({}, options, { + setDefaultsOnInsert: this._mongooseOptions.setDefaultsOnInsert + }); + this._update = setDefaultsOnInsert(this._conditions, this.model.schema, + this._update, _opts); + } + + if (Array.isArray(options.arrayFilters)) { + options.arrayFilters = removeUnusedArrayFilters(this._update, options.arrayFilters); + } + + const runValidators = _getOption(this, 'runValidators', false); + if (runValidators) { + await this.validate(this._update, options, isOverwriting); + } + + if (this._update.toBSON) { + this._update = this._update.toBSON(); + } + + return this.mongooseCollection[op](castedQuery, this._update, options); +} + +/** + * Mongoose calls this function internally to validate the query if + * `runValidators` is set + * + * @param {Object} castedDoc the update, after casting + * @param {Object} options the options from `_optionsForExec()` + * @param {Boolean} isOverwriting + * @method validate + * @memberOf Query + * @instance + * @api private + */ + +Query.prototype.validate = async function validate(castedDoc, options, isOverwriting) { + if (typeof arguments[3] === 'function') { + throw new MongooseError('Query.prototype.validate() no longer accepts a callback'); + } + + await _executePreHooks(this, 'validate'); + + if (isOverwriting) { + await castedDoc.$validate(); + } else { + await new Promise((resolve, reject) => { + updateValidators(this, this.model.schema, castedDoc, options, (err) => { + if (err != null) { + return reject(err); + } + resolve(); + }); + }); + } + + await _executePostHooks(this, null, null, 'validate'); +}; + +/** + * Execute an updateMany query + * + * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update() + * @method _updateMany + * @memberOf Query + * @instance + * @api private + */ +Query.prototype._updateMany = async function _updateMany() { + return _updateThunk.call(this, 'updateMany'); +}; + +/** + * Execute an updateOne query + * + * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update() + * @method _updateOne + * @memberOf Query + * @instance + * @api private + */ +Query.prototype._updateOne = async function _updateOne() { + return _updateThunk.call(this, 'updateOne'); +}; + +/** + * Execute a replaceOne query + * + * @see Model.replaceOne https://mongoosejs.com/docs/api/model.html#Model.replaceOne() + * @method _replaceOne + * @memberOf Query + * @instance + * @api private + */ +Query.prototype._replaceOne = async function _replaceOne() { + return _updateThunk.call(this, 'replaceOne'); +}; + +/** + * Declare and/or execute this query as an updateMany() operation. + * MongoDB will update _all_ documents that match `filter` (as opposed to just the first one). + * + * **Note** updateMany will _not_ fire update middleware. Use `pre('updateMany')` + * and `post('updateMany')` instead. + * + * #### Example: + * + * const res = await Person.updateMany({ name: /Stark$/ }, { isDeleted: true }); + * res.n; // Number of documents matched + * res.nModified; // Number of documents modified + * + * This function triggers the following middleware. + * + * - `updateMany()` + * + * @param {Object} [filter] + * @param {Object|Array} [update] the update command. If array, this update will be treated as an update pipeline and not casted. + * @param {Object} [options] + * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors. + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @param {Function} [callback] params are (error, writeOpResult) + * @return {Query} this + * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update() + * @see Query docs https://mongoosejs.com/docs/queries.html + * @see update https://www.mongodb.com/docs/manual/reference/method/db.collection.update/ + * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html + * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output + * @api public + */ + +Query.prototype.updateMany = function(conditions, doc, options, callback) { + if (typeof options === 'function') { + // .update(conditions, doc, callback) + callback = options; + options = null; + } else if (typeof doc === 'function') { + // .update(doc, callback); + callback = doc; + doc = conditions; + conditions = {}; + options = null; + } else if (typeof conditions === 'function') { + // .update(callback) + callback = conditions; + conditions = undefined; + doc = undefined; + options = undefined; + } else if (typeof conditions === 'object' && !doc && !options && !callback) { + // .update(doc) + doc = conditions; + conditions = undefined; + options = undefined; + callback = undefined; + } + + return _update(this, 'updateMany', conditions, doc, options, callback); +}; + +/** + * Declare and/or execute this query as an updateOne() operation. + * MongoDB will update _only_ the first document that matches `filter`. + * + * - Use `replaceOne()` if you want to overwrite an entire document rather than using [atomic operators](https://www.mongodb.com/docs/manual/tutorial/model-data-for-atomic-operations/#pattern) like `$set`. + * + * **Note** updateOne will _not_ fire update middleware. Use `pre('updateOne')` + * and `post('updateOne')` instead. + * + * #### Example: + * + * const res = await Person.updateOne({ name: 'Jean-Luc Picard' }, { ship: 'USS Enterprise' }); + * res.acknowledged; // Indicates if this write result was acknowledged. If not, then all other members of this result will be undefined. + * res.matchedCount; // Number of documents that matched the filter + * res.modifiedCount; // Number of documents that were modified + * res.upsertedCount; // Number of documents that were upserted + * res.upsertedId; // Identifier of the inserted document (if an upsert took place) + * + * This function triggers the following middleware. + * + * - `updateOne()` + * + * @param {Object} [filter] + * @param {Object|Array} [update] the update command. If array, this update will be treated as an update pipeline and not casted. + * @param {Object} [options] + * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors. + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Note that this allows you to overwrite timestamps. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Boolean} [options.overwriteDiscriminatorKey=false] Mongoose removes discriminator key updates from `update` by default, set `overwriteDiscriminatorKey` to `true` to allow updating the discriminator key + * @param {Function} [callback] params are (error, writeOpResult) + * @return {Query} this + * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update() + * @see Query docs https://mongoosejs.com/docs/queries.html + * @see update https://www.mongodb.com/docs/manual/reference/method/db.collection.update/ + * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html + * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output + * @api public + */ + +Query.prototype.updateOne = function(conditions, doc, options, callback) { + if (typeof options === 'function') { + // .update(conditions, doc, callback) + callback = options; + options = null; + } else if (typeof doc === 'function') { + // .update(doc, callback); + callback = doc; + doc = conditions; + conditions = {}; + options = null; + } else if (typeof conditions === 'function') { + // .update(callback) + callback = conditions; + conditions = undefined; + doc = undefined; + options = undefined; + } else if (typeof conditions === 'object' && !doc && !options && !callback) { + // .update(doc) + doc = conditions; + conditions = undefined; + options = undefined; + callback = undefined; + } + + return _update(this, 'updateOne', conditions, doc, options, callback); +}; + +/** + * Declare and/or execute this query as a replaceOne() operation. + * MongoDB will replace the existing document and will not accept any [atomic operators](https://www.mongodb.com/docs/manual/tutorial/model-data-for-atomic-operations/#pattern) (`$set`, etc.) + * + * **Note** replaceOne will _not_ fire update middleware. Use `pre('replaceOne')` + * and `post('replaceOne')` instead. + * + * #### Example: + * + * const res = await Person.replaceOne({ _id: 24601 }, { name: 'Jean Valjean' }); + * res.acknowledged; // Indicates if this write result was acknowledged. If not, then all other members of this result will be undefined. + * res.matchedCount; // Number of documents that matched the filter + * res.modifiedCount; // Number of documents that were modified + * res.upsertedCount; // Number of documents that were upserted + * res.upsertedId; // Identifier of the inserted document (if an upsert took place) + * + * This function triggers the following middleware. + * + * - `replaceOne()` + * + * @param {Object} [filter] + * @param {Object} [doc] the update command + * @param {Object} [options] + * @param {Boolean} [options.multipleCastError] by default, mongoose only returns the first error that occurred in casting the query. Turn on this option to aggregate all the cast errors. + * @param {Boolean|String} [options.strict] overwrites the schema's [strict mode option](https://mongoosejs.com/docs/guide.html#strict) + * @param {Boolean} [options.upsert=false] if true, and no documents found, insert a new document + * @param {Object} [options.writeConcern=null] sets the [write concern](https://www.mongodb.com/docs/manual/reference/write-concern/) for replica sets. Overrides the [schema-level write concern](https://mongoosejs.com/docs/guide.html#writeConcern) + * @param {Boolean} [options.timestamps=null] If set to `false` and [schema-level timestamps](https://mongoosejs.com/docs/guide.html#timestamps) are enabled, skip timestamps for this update. Does nothing if schema-level timestamps are not set. + * @param {Boolean} [options.translateAliases=null] If set to `true`, translates any schema-defined aliases in `filter`, `projection`, `update`, and `distinct`. Throws an error if there are any conflicts where both alias and raw property are defined on the same object. + * @param {Function} [callback] params are (error, writeOpResult) + * @return {Query} this + * @see Model.update https://mongoosejs.com/docs/api/model.html#Model.update() + * @see Query docs https://mongoosejs.com/docs/queries.html + * @see update https://www.mongodb.com/docs/manual/reference/method/db.collection.update/ + * @see UpdateResult https://mongodb.github.io/node-mongodb-native/4.9/interfaces/UpdateResult.html + * @see MongoDB docs https://www.mongodb.com/docs/manual/reference/command/update/#update-command-output + * @api public + */ + +Query.prototype.replaceOne = function(conditions, doc, options, callback) { + if (typeof options === 'function') { + // .update(conditions, doc, callback) + callback = options; + options = null; + } else if (typeof doc === 'function') { + // .update(doc, callback); + callback = doc; + doc = conditions; + conditions = {}; + options = null; + } else if (typeof conditions === 'function') { + // .update(callback) + callback = conditions; + conditions = undefined; + doc = undefined; + options = undefined; + } else if (typeof conditions === 'object' && !doc && !options && !callback) { + // .update(doc) + doc = conditions; + conditions = undefined; + options = undefined; + callback = undefined; + } + + return _update(this, 'replaceOne', conditions, doc, options, callback); +}; + +/** + * Internal helper for update, updateMany, updateOne, replaceOne + * @param {Query} query + * @param {String} op + * @param {Object} filter + * @param {Document} [doc] + * @param {Object} [options] + * @param {Function} callback + * @api private + */ + +function _update(query, op, filter, doc, options, callback) { + // make sure we don't send in the whole Document to merge() + query.op = op; + query._validateOp(); + doc = doc || {}; + + // strict is an option used in the update checking, make sure it gets set + if (options != null) { + if ('strict' in options) { + query._mongooseOptions.strict = options.strict; + } + } + + if (!(filter instanceof Query) && + filter != null && + filter.toString() !== '[object Object]') { + query.error(new ObjectParameterError(filter, 'filter', op)); + } else { + query.merge(filter); + } + + if (utils.isObject(options)) { + query.setOptions(options); + } + + query._mergeUpdate(doc); + + // Hooks + if (callback) { + query.exec(callback); + + return query; + } + + return query; +} + +/** + * Runs a function `fn` and treats the return value of `fn` as the new value + * for the query to resolve to. + * + * Any functions you pass to `transform()` will run **after** any post hooks. + * + * #### Example: + * + * const res = await MyModel.findOne().transform(res => { + * // Sets a `loadedAt` property on the doc that tells you the time the + * // document was loaded. + * return res == null ? + * res : + * Object.assign(res, { loadedAt: new Date() }); + * }); + * + * @method transform + * @memberOf Query + * @instance + * @param {Function} fn function to run to transform the query result + * @return {Query} this + */ + +Query.prototype.transform = function(fn) { + this._transforms.push(fn); + return this; +}; + +/** + * Make this query throw an error if no documents match the given `filter`. + * This is handy for integrating with async/await, because `orFail()` saves you + * an extra `if` statement to check if no document was found. + * + * #### Example: + * + * // Throws if no doc returned + * await Model.findOne({ foo: 'bar' }).orFail(); + * + * // Throws if no document was updated. Note that `orFail()` will still + * // throw if the only document that matches is `{ foo: 'bar', name: 'test' }`, + * // because `orFail()` will throw if no document was _updated_, not + * // if no document was _found_. + * await Model.updateOne({ foo: 'bar' }, { name: 'test' }).orFail(); + * + * // Throws "No docs found!" error if no docs match `{ foo: 'bar' }` + * await Model.find({ foo: 'bar' }).orFail(new Error('No docs found!')); + * + * // Throws "Not found" error if no document was found + * await Model.findOneAndUpdate({ foo: 'bar' }, { name: 'test' }). + * orFail(() => Error('Not found')); + * + * @method orFail + * @memberOf Query + * @instance + * @param {Function|Error} [err] optional error to throw if no docs match `filter`. If not specified, `orFail()` will throw a `DocumentNotFoundError` + * @return {Query} this + */ + +Query.prototype.orFail = function(err) { + this.transform(res => { + switch (this.op) { + case 'find': + if (res.length === 0) { + throw _orFailError(err, this); + } + break; + case 'findOne': + if (res == null) { + throw _orFailError(err, this); + } + break; + case 'replaceOne': + case 'updateMany': + case 'updateOne': + if (res && res.matchedCount === 0) { + throw _orFailError(err, this); + } + break; + case 'findOneAndDelete': + case 'findOneAndUpdate': + case 'findOneAndReplace': + if (this.options.includeResultMetadata && res != null && res.value == null) { + throw _orFailError(err, this); + } + if (!this.options.includeResultMetadata && res == null) { + throw _orFailError(err, this); + } + break; + case 'deleteMany': + case 'deleteOne': + if (res.deletedCount === 0) { + throw _orFailError(err, this); + } + break; + default: + break; + } + + return res; + }); + return this; +}; + +/** + * Get the error to throw for `orFail()` + * @param {Error|undefined} err + * @param {Query} query + * @api private + */ + +function _orFailError(err, query) { + if (typeof err === 'function') { + err = err.call(query); + } + + if (err == null) { + err = new DocumentNotFoundError(query.getQuery(), query.model.modelName); + } + + return err; +} + +/** + * Wrapper function to call isPathSelectedInclusive on a query. + * @param {String} path + * @return {Boolean} + * @api public + */ + +Query.prototype.isPathSelectedInclusive = function(path) { + return isPathSelectedInclusive(this._fields, path); +}; + +/** + * Executes the query + * + * #### Example: + * + * const promise = query.exec(); + * const promise = query.exec('update'); + * + * @param {String|Function} [operation] + * @return {Promise} + * @api public + */ + +Query.prototype.exec = async function exec(op) { + if (typeof op === 'function' || (arguments.length >= 2 && typeof arguments[1] === 'function')) { + throw new MongooseError('Query.prototype.exec() no longer accepts a callback'); + } + + if (typeof op === 'string') { + this.op = op; + } + + if (this.op == null) { + throw new MongooseError('Query must have `op` before executing'); + } + if (this.model == null) { + throw new MongooseError('Query must have an associated model before executing'); + } + this._validateOp(); + + if (!this.op) { + return; + } + + if (this.options && this.options.sort) { + const keys = Object.keys(this.options.sort); + if (keys.includes('')) { + throw new Error('Invalid field "" passed to sort()'); + } + } + + let thunk = '_' + this.op; + if (this.op === 'distinct') { + thunk = '__distinct'; + } + + if (this._executionStack != null) { + let str = this.toString(); + if (str.length > 60) { + str = str.slice(0, 60) + '...'; + } + const err = new MongooseError('Query was already executed: ' + str); + err.originalStack = this._executionStack.stack; + throw err; + } else { + this._executionStack = new Error(); + } + + let skipWrappedFunction = null; + try { + await _executePreExecHooks(this); + } catch (err) { + if (err instanceof Kareem.skipWrappedFunction) { + skipWrappedFunction = err; + } else { + throw err; + } + } + + let res; + + let error = null; + try { + await _executePreHooks(this); + res = skipWrappedFunction ? skipWrappedFunction.args[0] : await this[thunk](); + + for (const fn of this._transforms) { + res = fn(res); + } + } catch (err) { + if (err instanceof Kareem.skipWrappedFunction) { + res = err.args[0]; + } else { + error = err; + } + } + + res = await _executePostHooks(this, res, error); + + await _executePostExecHooks(this); + + return res; +}; + +/*! + * ignore + */ + +function _executePostExecHooks(query) { + return new Promise((resolve, reject) => { + query._hooks.execPost('exec', query, [], {}, (error) => { + if (error) { + return reject(error); + } + + resolve(); + }); + }); +} + +/*! + * ignore + */ + +function _executePostHooks(query, res, error, op) { + if (query._queryMiddleware == null) { + if (error != null) { + throw error; + } + return res; + } + + return new Promise((resolve, reject) => { + const opts = error ? { error } : {}; + + query._queryMiddleware.execPost(op || query.op, query, [res], opts, (error, res) => { + if (error) { + return reject(error); + } + + resolve(res); + }); + }); +} + +/*! + * ignore + */ + +function _executePreExecHooks(query) { + return new Promise((resolve, reject) => { + query._hooks.execPre('exec', query, [], (error) => { + if (error != null) { + return reject(error); + } + resolve(); + }); + }); +} + +/*! + * ignore + */ + +function _executePreHooks(query, op) { + if (query._queryMiddleware == null) { + return; + } + + return new Promise((resolve, reject) => { + query._queryMiddleware.execPre(op || query.op, query, [], (error) => { + if (error != null) { + return reject(error); + } + resolve(); + }); + }); +} + +/** + * Executes the query returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + * + * More about [`then()` in JavaScript](https://masteringjs.io/tutorials/fundamentals/then). + * + * @param {Function} [resolve] + * @param {Function} [reject] + * @return {Promise} + * @api public + */ + +Query.prototype.then = function(resolve, reject) { + return this.exec().then(resolve, reject); +}; + +/** + * Executes the query returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + * Like `.then()`, but only takes a rejection handler. + * + * More about [Promise `catch()` in JavaScript](https://masteringjs.io/tutorials/fundamentals/catch). + * + * @param {Function} [reject] + * @return {Promise} + * @api public + */ + +Query.prototype.catch = function(reject) { + return this.exec().then(null, reject); +}; + +/** + * Executes the query returning a `Promise` which will be + * resolved with `.finally()` chained. + * + * More about [Promise `finally()` in JavaScript](https://thecodebarbarian.com/using-promise-finally-in-node-js.html). + * + * @param {Function} [onFinally] + * @return {Promise} + * @api public + */ + +Query.prototype.finally = function(onFinally) { + return this.exec().finally(onFinally); +}; + +/** + * Returns a string representation of this query. + * + * More about [`toString()` in JavaScript](https://masteringjs.io/tutorials/fundamentals/tostring). + * + * #### Example: + * const q = Model.find(); + * console.log(q); // Prints "Query { find }" + * + * @return {String} + * @api public + * @method [Symbol.toStringTag] + * @memberOf Query + */ + +Query.prototype[Symbol.toStringTag] = function toString() { + return `Query { ${this.op} }`; +}; + +/** + * Add pre [middleware](https://mongoosejs.com/docs/middleware.html) to this query instance. Doesn't affect + * other queries. + * + * #### Example: + * + * const q1 = Question.find({ answer: 42 }); + * q1.pre(function middleware() { + * console.log(this.getFilter()); + * }); + * await q1.exec(); // Prints "{ answer: 42 }" + * + * // Doesn't print anything, because `middleware()` is only + * // registered on `q1`. + * await Question.find({ answer: 42 }); + * + * @param {Function} fn + * @return {Promise} + * @api public + */ + +Query.prototype.pre = function(fn) { + this._hooks.pre('exec', fn); + return this; +}; + +/** + * Add post [middleware](https://mongoosejs.com/docs/middleware.html) to this query instance. Doesn't affect + * other queries. + * + * #### Example: + * + * const q1 = Question.find({ answer: 42 }); + * q1.post(function middleware() { + * console.log(this.getFilter()); + * }); + * await q1.exec(); // Prints "{ answer: 42 }" + * + * // Doesn't print anything, because `middleware()` is only + * // registered on `q1`. + * await Question.find({ answer: 42 }); + * + * @param {Function} fn + * @return {Promise} + * @api public + */ + +Query.prototype.post = function(fn) { + this._hooks.post('exec', fn); + return this; +}; + +/** + * Casts obj for an update command. + * + * @param {Object} obj + * @return {Object} obj after casting its values + * @method _castUpdate + * @memberOf Query + * @instance + * @api private + */ + +Query.prototype._castUpdate = function _castUpdate(obj) { + let schema = this.schema; + + const discriminatorKey = schema.options.discriminatorKey; + const baseSchema = schema._baseSchema ? schema._baseSchema : schema; + if (this._mongooseOptions.overwriteDiscriminatorKey && + obj[discriminatorKey] != null && + baseSchema.discriminators) { + const _schema = Object.values(baseSchema.discriminators).find( + discriminator => discriminator.discriminatorMapping.value === obj[discriminatorKey] + ); + if (_schema != null) { + schema = _schema; + } + } + + let upsert; + if ('upsert' in this.options) { + upsert = this.options.upsert; + } + + const filter = this._conditions; + if (schema != null && + utils.hasUserDefinedProperty(filter, schema.options.discriminatorKey) && + typeof filter[schema.options.discriminatorKey] !== 'object' && + schema.discriminators != null) { + const discriminatorValue = filter[schema.options.discriminatorKey]; + const byValue = getDiscriminatorByValue(this.model.discriminators, discriminatorValue); + schema = schema.discriminators[discriminatorValue] || + (byValue && byValue.schema) || + schema; + } + + return castUpdate(schema, obj, { + strict: this._mongooseOptions.strict, + upsert: upsert, + arrayFilters: this.options.arrayFilters, + overwriteDiscriminatorKey: this._mongooseOptions.overwriteDiscriminatorKey + }, this, this._conditions); +}; + +/** + * Specifies paths which should be populated with other documents. + * + * #### Example: + * + * let book = await Book.findOne().populate('authors'); + * book.title; // 'Node.js in Action' + * book.authors[0].name; // 'TJ Holowaychuk' + * book.authors[1].name; // 'Nathan Rajlich' + * + * let books = await Book.find().populate({ + * path: 'authors', + * // `match` and `sort` apply to the Author model, + * // not the Book model. These options do not affect + * // which documents are in `books`, just the order and + * // contents of each book document's `authors`. + * match: { name: new RegExp('.*h.*', 'i') }, + * sort: { name: -1 } + * }); + * books[0].title; // 'Node.js in Action' + * // Each book's `authors` are sorted by name, descending. + * books[0].authors[0].name; // 'TJ Holowaychuk' + * books[0].authors[1].name; // 'Marc Harter' + * + * books[1].title; // 'Professional AngularJS' + * // Empty array, no authors' name has the letter 'h' + * books[1].authors; // [] + * + * Paths are populated after the query executes and a response is received. A + * separate query is then executed for each path specified for population. After + * a response for each query has also been returned, the results are passed to + * the callback. + * + * @param {Object|String|String[]} path either the path(s) to populate or an object specifying all parameters + * @param {Object|String} [select] Field selection for the population query + * @param {Model} [model] The model you wish to use for population. If not specified, populate will look up the model by the name in the Schema's `ref` field. + * @param {Object} [match] Conditions for the population query + * @param {Object} [options] Options for the population query (sort, etc) + * @param {String} [options.path=null] The path to populate. + * @param {boolean} [options.retainNullValues=false] by default, Mongoose removes null and undefined values from populated arrays. Use this option to make `populate()` retain `null` and `undefined` array entries. + * @param {boolean} [options.getters=false] if true, Mongoose will call any getters defined on the `localField`. By default, Mongoose gets the raw value of `localField`. For example, you would need to set this option to `true` if you wanted to [add a `lowercase` getter to your `localField`](https://mongoosejs.com/docs/schematypes.html#schematype-options). + * @param {boolean} [options.clone=false] When you do `BlogPost.find().populate('author')`, blog posts with the same author will share 1 copy of an `author` doc. Enable this option to make Mongoose clone populated docs before assigning them. + * @param {Object|Function} [options.match=null] Add an additional filter to the populate query. Can be a filter object containing [MongoDB query syntax](https://www.mongodb.com/docs/manual/tutorial/query-documents/), or a function that returns a filter object. + * @param {Function} [options.transform=null] Function that Mongoose will call on every populated document that allows you to transform the populated document. + * @param {Object} [options.options=null] Additional options like `limit` and `lean`. + * @see population https://mongoosejs.com/docs/populate.html + * @see Query#select https://mongoosejs.com/docs/api/query.html#Query.prototype.select() + * @see Model.populate https://mongoosejs.com/docs/api/model.html#Model.populate() + * @return {Query} this + * @api public + */ + +Query.prototype.populate = function() { + // Bail when given no truthy arguments + if (!Array.from(arguments).some(Boolean)) { + return this; + } + + const res = utils.populate.apply(null, arguments); + + // Propagate readConcern and readPreference and lean from parent query, + // unless one already specified + if (this.options != null) { + const readConcern = this.options.readConcern; + const readPref = this.options.readPreference; + + for (const populateOptions of res) { + if (readConcern != null && (populateOptions && populateOptions.options && populateOptions.options.readConcern) == null) { + populateOptions.options = populateOptions.options || {}; + populateOptions.options.readConcern = readConcern; + } + if (readPref != null && (populateOptions && populateOptions.options && populateOptions.options.readPreference) == null) { + populateOptions.options = populateOptions.options || {}; + populateOptions.options.readPreference = readPref; + } + } + } + + const opts = this._mongooseOptions; + + if (opts.lean != null) { + const lean = opts.lean; + for (const populateOptions of res) { + if ((populateOptions && populateOptions.options && populateOptions.options.lean) == null) { + populateOptions.options = populateOptions.options || {}; + populateOptions.options.lean = lean; + } + } + } + + if (!utils.isObject(opts.populate)) { + opts.populate = {}; + } + + const pop = opts.populate; + + for (const populateOptions of res) { + const path = populateOptions.path; + if (pop[path] && pop[path].populate && populateOptions.populate) { + populateOptions.populate = pop[path].populate.concat(populateOptions.populate); + } + + pop[populateOptions.path] = populateOptions; + } + return this; +}; + +/** + * Gets a list of paths to be populated by this query + * + * #### Example: + * + * bookSchema.pre('findOne', function() { + * let keys = this.getPopulatedPaths(); // ['author'] + * }); + * ... + * Book.findOne({}).populate('author'); + * + * #### Example: + * + * // Deep populate + * const q = L1.find().populate({ + * path: 'level2', + * populate: { path: 'level3' } + * }); + * q.getPopulatedPaths(); // ['level2', 'level2.level3'] + * + * @return {Array} an array of strings representing populated paths + * @api public + */ + +Query.prototype.getPopulatedPaths = function getPopulatedPaths() { + const obj = this._mongooseOptions.populate || {}; + const ret = Object.keys(obj); + for (const path of Object.keys(obj)) { + const pop = obj[path]; + if (!Array.isArray(pop.populate)) { + continue; + } + _getPopulatedPaths(ret, pop.populate, path + '.'); + } + return ret; +}; + +/*! + * ignore + */ + +function _getPopulatedPaths(list, arr, prefix) { + for (const pop of arr) { + list.push(prefix + pop.path); + if (!Array.isArray(pop.populate)) { + continue; + } + _getPopulatedPaths(list, pop.populate, prefix + pop.path + '.'); + } +} + +/** + * Casts this query to the schema of `model` + * + * #### Note: + * + * If `obj` is present, it is cast instead of this query. + * + * @param {Model} [model] the model to cast to. If not set, defaults to `this.model` + * @param {Object} [obj] + * @return {Object} + * @api public + */ + +Query.prototype.cast = function(model, obj) { + obj || (obj = this._conditions); + model = model || this.model; + const discriminatorKey = model.schema.options.discriminatorKey; + if (obj != null && + obj.hasOwnProperty(discriminatorKey)) { + model = getDiscriminatorByValue(model.discriminators, obj[discriminatorKey]) || model; + } + + const opts = { upsert: this.options && this.options.upsert }; + if (this.options) { + if ('strict' in this.options) { + opts.strict = this.options.strict; + } + if ('strictQuery' in this.options) { + opts.strictQuery = this.options.strictQuery; + } + } + + try { + return cast(model.schema, obj, opts, this); + } catch (err) { + // CastError, assign model + if (typeof err.setModel === 'function') { + err.setModel(model); + } + throw err; + } +}; + +/** + * Casts selected field arguments for field selection with mongo 2.2 + * + * query.select({ ids: { $elemMatch: { $in: [hexString] }}) + * + * @param {Object} fields + * @see https://github.com/Automattic/mongoose/issues/1091 + * @see https://www.mongodb.com/docs/manual/reference/projection/elemMatch/ + * @api private + */ + +Query.prototype._castFields = function _castFields(fields) { + let selected, + elemMatchKeys, + keys, + key, + out; + + if (fields) { + keys = Object.keys(fields); + elemMatchKeys = []; + + // collect $elemMatch args + for (let i = 0; i < keys.length; ++i) { + key = keys[i]; + if (fields[key].$elemMatch) { + selected || (selected = {}); + selected[key] = fields[key]; + elemMatchKeys.push(key); + } + } + } + + if (selected) { + // they passed $elemMatch, cast em + try { + out = this.cast(this.model, selected); + } catch (err) { + return err; + } + + // apply the casted field args + for (let i = 0; i < elemMatchKeys.length; ++i) { + key = elemMatchKeys[i]; + fields[key] = out[key]; + } + } + + return fields; +}; + +/** + * Applies schematype selected options to this query. + * @api private + */ + +Query.prototype._applyPaths = function applyPaths() { + if (!this.model) { + return; + } + this._fields = this._fields || {}; + helpers.applyPaths(this._fields, this.model.schema); + + let _selectPopulatedPaths = true; + + if ('selectPopulatedPaths' in this.model.base.options) { + _selectPopulatedPaths = this.model.base.options.selectPopulatedPaths; + } + if ('selectPopulatedPaths' in this.model.schema.options) { + _selectPopulatedPaths = this.model.schema.options.selectPopulatedPaths; + } + + if (_selectPopulatedPaths) { + selectPopulatedFields(this._fields, this._userProvidedFields, this._mongooseOptions.populate); + } +}; + +/** + * Returns a wrapper around a [mongodb driver cursor](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html). + * A QueryCursor exposes a Streams3 interface, as well as a `.next()` function. + * + * The `.cursor()` function triggers pre find hooks, but **not** post find hooks. + * + * #### Example: + * + * // There are 2 ways to use a cursor. First, as a stream: + * Thing. + * find({ name: /^hello/ }). + * cursor(). + * on('data', function(doc) { console.log(doc); }). + * on('end', function() { console.log('Done!'); }); + * + * // Or you can use `.next()` to manually get the next doc in the stream. + * // `.next()` returns a promise, so you can use promises or callbacks. + * const cursor = Thing.find({ name: /^hello/ }).cursor(); + * cursor.next(function(error, doc) { + * console.log(doc); + * }); + * + * // Because `.next()` returns a promise, you can use co + * // to easily iterate through all documents without loading them + * // all into memory. + * const cursor = Thing.find({ name: /^hello/ }).cursor(); + * for (let doc = await cursor.next(); doc != null; doc = await cursor.next()) { + * console.log(doc); + * } + * + * #### Valid options + * + * - `transform`: optional function which accepts a mongoose document. The return value of the function will be emitted on `data` and returned by `.next()`. + * + * @return {QueryCursor} + * @param {Object} [options] + * @see QueryCursor https://mongoosejs.com/docs/api/querycursor.html + * @api public + */ + +Query.prototype.cursor = function cursor(opts) { + if (opts) { + this.setOptions(opts); + } + + try { + this.cast(this.model); + } catch (err) { + return (new QueryCursor(this))._markError(err); + } + + return new QueryCursor(this); +}; + +// the rest of these are basically to support older Mongoose syntax with mquery + +/** + * Sets the tailable option (for use with capped collections). + * + * #### Example: + * + * query.tailable(); // true + * query.tailable(true); + * query.tailable(false); + * + * // Set both `tailable` and `awaitData` options + * query.tailable({ awaitData: true }); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @param {Boolean} bool defaults to true + * @param {Object} [opts] options to set + * @param {Boolean} [opts.awaitData] false by default. Set to true to keep the cursor open even if there's no data. + * @param {Number} [opts.maxAwaitTimeMS] the maximum amount of time for the server to wait on new documents to satisfy a tailable cursor query. Requires `tailable` and `awaitData` to be true + * @see tailable https://www.mongodb.com/docs/manual/tutorial/create-tailable-cursor/ + * @api public + */ + +Query.prototype.tailable = function(val, opts) { + // we need to support the tailable({ awaitData : true }) as well as the + // tailable(true, {awaitData :true}) syntax that mquery does not support + if (val != null && typeof val.constructor === 'function' && val.constructor.name === 'Object') { + opts = val; + val = true; + } + + if (val === undefined) { + val = true; + } + + if (opts && typeof opts === 'object') { + for (const key of Object.keys(opts)) { + if (key === 'awaitData' || key === 'awaitdata') { // backwards compat, see gh-10875 + // For backwards compatibility + this.options['awaitData'] = !!opts[key]; + } else { + this.options[key] = opts[key]; + } + } + } + + this.options.tailable = arguments.length ? !!val : true; + + return this; +}; + +/** + * Declares an intersects query for `geometry()`. + * + * #### Example: + * + * query.where('path').intersects().geometry({ + * type: 'LineString', + * coordinates: [[180.0, 11.0], [180, 9.0]] + * }); + * + * query.where('path').intersects({ + * type: 'LineString', + * coordinates: [[180.0, 11.0], [180, 9.0]] + * }); + * + * #### Note: + * + * **MUST** be used after `where()`. + * + * #### Note: + * + * In Mongoose 3.7, `intersects` changed from a getter to a function. If you need the old syntax, use [this](https://github.com/ebensing/mongoose-within). + * + * @method intersects + * @memberOf Query + * @instance + * @param {Object} [arg] + * @return {Query} this + * @see $geometry https://www.mongodb.com/docs/manual/reference/operator/geometry/ + * @see geoIntersects https://www.mongodb.com/docs/manual/reference/operator/geoIntersects/ + * @api public + */ + +/** + * Specifies a `$geometry` condition + * + * #### Example: + * + * const polyA = [[[ 10, 20 ], [ 10, 40 ], [ 30, 40 ], [ 30, 20 ]]] + * query.where('loc').within().geometry({ type: 'Polygon', coordinates: polyA }) + * + * // or + * const polyB = [[ 0, 0 ], [ 1, 1 ]] + * query.where('loc').within().geometry({ type: 'LineString', coordinates: polyB }) + * + * // or + * const polyC = [ 0, 0 ] + * query.where('loc').within().geometry({ type: 'Point', coordinates: polyC }) + * + * // or + * query.where('loc').intersects().geometry({ type: 'Point', coordinates: polyC }) + * + * The argument is assigned to the most recent path passed to `where()`. + * + * #### Note: + * + * `geometry()` **must** come after either `intersects()` or `within()`. + * + * The `object` argument must contain `type` and `coordinates` properties. + * - type {String} + * - coordinates {Array} + * + * @method geometry + * @memberOf Query + * @instance + * @param {Object} object Must contain a `type` property which is a String and a `coordinates` property which is an Array. See the examples. + * @return {Query} this + * @see $geometry https://www.mongodb.com/docs/manual/reference/operator/geometry/ + * @see Geospatial Support Enhancements https://www.mongodb.com/docs/manual/release-notes/2.4/#geospatial-support-enhancements + * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/ + * @api public + */ + +/** + * Specifies a `$near` or `$nearSphere` condition + * + * These operators return documents sorted by distance. + * + * #### Example: + * + * query.where('loc').near({ center: [10, 10] }); + * query.where('loc').near({ center: [10, 10], maxDistance: 5 }); + * query.where('loc').near({ center: [10, 10], maxDistance: 5, spherical: true }); + * query.near('loc', { center: [10, 10], maxDistance: 5 }); + * + * @method near + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Object} val + * @return {Query} this + * @see $near https://www.mongodb.com/docs/manual/reference/operator/near/ + * @see $nearSphere https://www.mongodb.com/docs/manual/reference/operator/nearSphere/ + * @see $maxDistance https://www.mongodb.com/docs/manual/reference/operator/maxDistance/ + * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/ + * @api public + */ + +/** + * Overwriting mquery is needed to support a couple different near() forms found in older + * versions of mongoose + * near([1,1]) + * near(1,1) + * near(field, [1,2]) + * near(field, 1, 2) + * In addition to all of the normal forms supported by mquery + * + * @method near + * @memberOf Query + * @instance + * @api private + */ + +Query.prototype.near = function() { + const params = []; + const sphere = this._mongooseOptions.nearSphere; + + // TODO refactor + + if (arguments.length === 1) { + if (Array.isArray(arguments[0])) { + params.push({ center: arguments[0], spherical: sphere }); + } else if (typeof arguments[0] === 'string') { + // just passing a path + params.push(arguments[0]); + } else if (utils.isObject(arguments[0])) { + if (typeof arguments[0].spherical !== 'boolean') { + arguments[0].spherical = sphere; + } + params.push(arguments[0]); + } else { + throw new TypeError('invalid argument'); + } + } else if (arguments.length === 2) { + if (typeof arguments[0] === 'number' && typeof arguments[1] === 'number') { + params.push({ center: [arguments[0], arguments[1]], spherical: sphere }); + } else if (typeof arguments[0] === 'string' && Array.isArray(arguments[1])) { + params.push(arguments[0]); + params.push({ center: arguments[1], spherical: sphere }); + } else if (typeof arguments[0] === 'string' && utils.isObject(arguments[1])) { + params.push(arguments[0]); + if (typeof arguments[1].spherical !== 'boolean') { + arguments[1].spherical = sphere; + } + params.push(arguments[1]); + } else { + throw new TypeError('invalid argument'); + } + } else if (arguments.length === 3) { + if (typeof arguments[0] === 'string' && typeof arguments[1] === 'number' + && typeof arguments[2] === 'number') { + params.push(arguments[0]); + params.push({ center: [arguments[1], arguments[2]], spherical: sphere }); + } else { + throw new TypeError('invalid argument'); + } + } else { + throw new TypeError('invalid argument'); + } + + return Query.base.near.apply(this, params); +}; + +/** + * _DEPRECATED_ Specifies a `$nearSphere` condition + * + * #### Example: + * + * query.where('loc').nearSphere({ center: [10, 10], maxDistance: 5 }); + * + * **Deprecated.** Use `query.near()` instead with the `spherical` option set to `true`. + * + * #### Example: + * + * query.where('loc').near({ center: [10, 10], spherical: true }); + * + * @deprecated + * @see near() https://mongoosejs.com/docs/api/query.html#Query.prototype.near() + * @see $near https://www.mongodb.com/docs/manual/reference/operator/near/ + * @see $nearSphere https://www.mongodb.com/docs/manual/reference/operator/nearSphere/ + * @see $maxDistance https://www.mongodb.com/docs/manual/reference/operator/maxDistance/ + */ + +Query.prototype.nearSphere = function() { + this._mongooseOptions.nearSphere = true; + this.near.apply(this, arguments); + return this; +}; + +/** + * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js) + * This function *only* works for `find()` queries. + * You do not need to call this function explicitly, the JavaScript runtime + * will call it for you. + * + * #### Example: + * + * for await (const doc of Model.aggregate([{ $sort: { name: 1 } }])) { + * console.log(doc.name); + * } + * + * Node.js 10.x supports async iterators natively without any flags. You can + * enable async iterators in Node.js 8.x using the [`--harmony_async_iteration` flag](https://github.com/tc39/proposal-async-iteration/issues/117#issuecomment-346695187). + * + * **Note:** This function is not if `Symbol.asyncIterator` is undefined. If + * `Symbol.asyncIterator` is undefined, that means your Node.js version does not + * support async iterators. + * + * @method [Symbol.asyncIterator] + * @memberOf Query + * @instance + * @api public + */ + +if (Symbol.asyncIterator != null) { + Query.prototype[Symbol.asyncIterator] = function() { + return this.cursor().transformNull()._transformForAsyncIterator(); + }; +} + +/** + * Specifies a `$polygon` condition + * + * #### Example: + * + * query.where('loc').within().polygon([10, 20], [13, 25], [7, 15]); + * query.polygon('loc', [10, 20], [13, 25], [7, 15]); + * + * @method polygon + * @memberOf Query + * @instance + * @param {String|Array} [path] + * @param {...Array|Object} [coordinatePairs] + * @return {Query} this + * @see $polygon https://www.mongodb.com/docs/manual/reference/operator/polygon/ + * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/ + * @api public + */ + +/** + * Specifies a `$box` condition + * + * #### Example: + * + * const lowerLeft = [40.73083, -73.99756] + * const upperRight= [40.741404, -73.988135] + * + * query.where('loc').within().box(lowerLeft, upperRight) + * query.box({ ll : lowerLeft, ur : upperRight }) + * + * @method box + * @memberOf Query + * @instance + * @see $box https://www.mongodb.com/docs/manual/reference/operator/box/ + * @see within() Query#within https://mongoosejs.com/docs/api/query.html#Query.prototype.within() + * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/ + * @param {Object|Array} val1 Lower Left Coordinates OR a object of lower-left(ll) and upper-right(ur) Coordinates + * @param {Array} [val2] Upper Right Coordinates + * @return {Query} this + * @api public + */ + +/** + * this is needed to support the mongoose syntax of: + * box(field, { ll : [x,y], ur : [x2,y2] }) + * box({ ll : [x,y], ur : [x2,y2] }) + * + * @method box + * @memberOf Query + * @instance + * @api private + */ + +Query.prototype.box = function(ll, ur) { + if (!Array.isArray(ll) && utils.isObject(ll)) { + ur = ll.ur; + ll = ll.ll; + } + return Query.base.box.call(this, ll, ur); +}; + +/** + * Specifies a `$center` or `$centerSphere` condition. + * + * #### Example: + * + * const area = { center: [50, 50], radius: 10, unique: true } + * query.where('loc').within().circle(area) + * // alternatively + * query.circle('loc', area); + * + * // spherical calculations + * const area = { center: [50, 50], radius: 10, unique: true, spherical: true } + * query.where('loc').within().circle(area) + * // alternatively + * query.circle('loc', area); + * + * @method circle + * @memberOf Query + * @instance + * @param {String} [path] + * @param {Object} area + * @return {Query} this + * @see $center https://www.mongodb.com/docs/manual/reference/operator/center/ + * @see $centerSphere https://www.mongodb.com/docs/manual/reference/operator/centerSphere/ + * @see $geoWithin https://www.mongodb.com/docs/manual/reference/operator/geoWithin/ + * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/ + * @api public + */ + +/** + * _DEPRECATED_ Alias for [circle](https://mongoosejs.com/docs/api/query.html#Query.prototype.circle()) + * + * **Deprecated.** Use [circle](https://mongoosejs.com/docs/api/query.html#Query.prototype.circle()) instead. + * + * @deprecated + * @method center + * @memberOf Query + * @instance + * @api public + */ + +Query.prototype.center = Query.base.circle; + +/** + * _DEPRECATED_ Specifies a `$centerSphere` condition + * + * **Deprecated.** Use [circle](https://mongoosejs.com/docs/api/query.html#Query.prototype.circle()) instead. + * + * #### Example: + * + * const area = { center: [50, 50], radius: 10 }; + * query.where('loc').within().centerSphere(area); + * + * @deprecated + * @param {String} [path] + * @param {Object} val + * @return {Query} this + * @see MongoDB Geospatial Indexing https://www.mongodb.com/docs/manual/core/geospatial-indexes/ + * @see $centerSphere https://www.mongodb.com/docs/manual/reference/operator/centerSphere/ + * @api public + */ + +Query.prototype.centerSphere = function() { + if (arguments[0] != null && typeof arguments[0].constructor === 'function' && arguments[0].constructor.name === 'Object') { + arguments[0].spherical = true; + } + + if (arguments[1] != null && typeof arguments[1].constructor === 'function' && arguments[1].constructor.name === 'Object') { + arguments[1].spherical = true; + } + + Query.base.circle.apply(this, arguments); +}; + +/** + * Determines if field selection has been made. + * + * @method selected + * @memberOf Query + * @instance + * @return {Boolean} + * @api public + */ + +/** + * Determines if inclusive field selection has been made. + * + * query.selectedInclusively(); // false + * query.select('name'); + * query.selectedInclusively(); // true + * + * @method selectedInclusively + * @memberOf Query + * @instance + * @return {Boolean} + * @api public + */ + +Query.prototype.selectedInclusively = function selectedInclusively() { + return isInclusive(this._fields); +}; + +/** + * Determines if exclusive field selection has been made. + * + * query.selectedExclusively(); // false + * query.select('-name'); + * query.selectedExclusively(); // true + * query.selectedInclusively(); // false + * + * @method selectedExclusively + * @memberOf Query + * @instance + * @return {Boolean} + * @api public + */ + +Query.prototype.selectedExclusively = function selectedExclusively() { + return isExclusive(this._fields); +}; + +/** + * The model this query is associated with. + * + * #### Example: + * + * const q = MyModel.find(); + * q.model === MyModel; // true + * + * @api public + * @property model + * @memberOf Query + * @instance + */ + +Query.prototype.model; + +/*! + * Export + */ + +module.exports = Query; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/queryHelpers.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/queryHelpers.js new file mode 100644 index 000000000..90d8739ef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/queryHelpers.js @@ -0,0 +1,403 @@ +'use strict'; + +/*! + * Module dependencies + */ + +const checkEmbeddedDiscriminatorKeyProjection = + require('./helpers/discriminator/checkEmbeddedDiscriminatorKeyProjection'); +const get = require('./helpers/get'); +const getDiscriminatorByValue = + require('./helpers/discriminator/getDiscriminatorByValue'); +const isDefiningProjection = require('./helpers/projection/isDefiningProjection'); +const clone = require('./helpers/clone'); +const isPathSelectedInclusive = require('./helpers/projection/isPathSelectedInclusive'); + +/** + * Prepare a set of path options for query population. + * + * @param {Query} query + * @param {Object} options + * @return {Array} + */ + +exports.preparePopulationOptions = function preparePopulationOptions(query, options) { + const _populate = query.options.populate; + const pop = Object.keys(_populate).reduce((vals, key) => vals.concat([_populate[key]]), []); + + // lean options should trickle through all queries + if (options.lean != null) { + pop + .filter(p => (p && p.options && p.options.lean) == null) + .forEach(makeLean(options.lean)); + } + + pop.forEach(opts => { + opts._localModel = query.model; + }); + + return pop; +}; + +/** + * Prepare a set of path options for query population. This is the MongooseQuery + * version + * + * @param {Query} query + * @param {Object} options + * @return {Array} + */ + +exports.preparePopulationOptionsMQ = function preparePopulationOptionsMQ(query, options) { + const _populate = query._mongooseOptions.populate; + const pop = Object.keys(_populate).reduce((vals, key) => vals.concat([_populate[key]]), []); + + // lean options should trickle through all queries + if (options.lean != null) { + pop + .filter(p => (p && p.options && p.options.lean) == null) + .forEach(makeLean(options.lean)); + } + + const session = query && query.options && query.options.session || null; + if (session != null) { + pop.forEach(path => { + if (path.options == null) { + path.options = { session: session }; + return; + } + if (!('session' in path.options)) { + path.options.session = session; + } + }); + } + + const projection = query._fieldsForExec(); + pop.forEach(p => { + p._queryProjection = projection; + }); + pop.forEach(opts => { + opts._localModel = query.model; + }); + + return pop; +}; + +/** + * If the document is a mapped discriminator type, it returns a model instance for that type, otherwise, + * it returns an instance of the given model. + * + * @param {Model} model + * @param {Object} doc + * @param {Object} fields + * + * @return {Document} + */ +exports.createModel = function createModel(model, doc, fields, userProvidedFields, options) { + model.hooks.execPreSync('createModel', doc); + const discriminatorMapping = model.schema ? + model.schema.discriminatorMapping : + null; + + const key = discriminatorMapping && discriminatorMapping.isRoot ? + discriminatorMapping.key : + null; + + const value = doc[key]; + if (key && value && model.discriminators) { + const discriminator = model.discriminators[value] || getDiscriminatorByValue(model.discriminators, value); + if (discriminator) { + const _fields = clone(userProvidedFields); + exports.applyPaths(_fields, discriminator.schema); + return new discriminator(undefined, _fields, true); + } + } + + const _opts = { + skipId: true, + isNew: false, + willInit: true + }; + if (options != null && 'defaults' in options) { + _opts.defaults = options.defaults; + } + return new model(undefined, fields, _opts); +}; + +/*! + * ignore + */ + +exports.createModelAndInit = function createModelAndInit(model, doc, fields, userProvidedFields, options, populatedIds, callback) { + const initOpts = populatedIds ? + { populated: populatedIds } : + undefined; + + const casted = exports.createModel(model, doc, fields, userProvidedFields, options); + try { + casted.$init(doc, initOpts, callback); + } catch (error) { + callback(error, casted); + } +}; + +/*! + * ignore + */ + +exports.applyPaths = function applyPaths(fields, schema) { + // determine if query is selecting or excluding fields + let exclude; + let keys; + const minusPathsToSkip = new Set(); + + if (fields) { + keys = Object.keys(fields); + + // Collapse minus paths + const minusPaths = []; + for (let i = 0; i < keys.length; ++i) { + const key = keys[i]; + if (keys[i][0] !== '-') { + continue; + } + + delete fields[key]; + if (key === '-_id') { + fields['_id'] = 0; + } else { + minusPaths.push(key.slice(1)); + } + } + + keys = Object.keys(fields); + for (let keyIndex = 0; keyIndex < keys.length; ++keyIndex) { + if (keys[keyIndex][0] === '+') { + continue; + } + const field = fields[keys[keyIndex]]; + // Skip `$meta` and `$slice` + if (!isDefiningProjection(field)) { + continue; + } + if (keys[keyIndex] === '_id' && keys.length > 1) { + continue; + } + if (keys[keyIndex] === schema.options.discriminatorKey && keys.length > 1 && field != null && !field) { + continue; + } + exclude = !field; + break; + } + + // Potentially add back minus paths based on schema-level path config + // and whether the projection is inclusive + for (const path of minusPaths) { + const type = schema.path(path); + // If the path isn't selected by default or the projection is not + // inclusive, minus path is treated as equivalent to `key: 0`. + // But we also allow using `-name` to remove `name` from an inclusive + // projection if `name` has schema-level `select: true`. + if ((!type || !type.selected) || exclude !== false) { + fields[path] = 0; + exclude = true; + } else if (type && type.selected && exclude === false) { + // Make a note of minus paths that are overwriting paths that are + // included by default. + minusPathsToSkip.add(path); + } + } + } + + // if selecting, apply default schematype select:true fields + // if excluding, apply schematype select:false fields + const selected = []; + const excluded = []; + const stack = []; + + analyzeSchema(schema); + switch (exclude) { + case true: + for (const fieldName of excluded) { + fields[fieldName] = 0; + } + break; + case false: + if (schema && + schema.paths['_id'] && + schema.paths['_id'].options && + schema.paths['_id'].options.select === false) { + fields._id = 0; + } + + for (const fieldName of selected) { + if (minusPathsToSkip.has(fieldName)) { + continue; + } + if (isPathSelectedInclusive(fields, fieldName)) { + continue; + } + fields[fieldName] = fields[fieldName] || 1; + } + break; + case undefined: + if (fields == null) { + break; + } + // Any leftover plus paths must in the schema, so delete them (gh-7017) + for (const key of Object.keys(fields || {})) { + if (key.startsWith('+')) { + delete fields[key]; + } + } + + // user didn't specify fields, implies returning all fields. + // only need to apply excluded fields and delete any plus paths + for (const fieldName of excluded) { + if (fields[fieldName] != null) { + // Skip applying default projections to fields with non-defining + // projections, like `$slice` + continue; + } + fields[fieldName] = 0; + } + break; + } + + function analyzeSchema(schema, prefix) { + prefix || (prefix = ''); + + // avoid recursion + if (stack.indexOf(schema) !== -1) { + return []; + } + stack.push(schema); + + const addedPaths = []; + schema.eachPath(function(path, type) { + if (prefix) path = prefix + '.' + path; + if (type.$isSchemaMap || path.endsWith('.$*')) { + const plusPath = '+' + path; + const hasPlusPath = fields && plusPath in fields; + if (type.options && type.options.select === false && !hasPlusPath) { + excluded.push(path); + } + return; + } + let addedPath = analyzePath(path, type); + // arrays + if (addedPath == null && !Array.isArray(type) && type.$isMongooseArray && !type.$isMongooseDocumentArray) { + addedPath = analyzePath(path, type.caster); + } + if (addedPath != null) { + addedPaths.push(addedPath); + } + + // nested schemas + if (type.schema) { + const _addedPaths = analyzeSchema(type.schema, path); + + // Special case: if discriminator key is the only field that would + // be projected in, remove it. + if (exclude === false) { + checkEmbeddedDiscriminatorKeyProjection(fields, path, type.schema, + selected, _addedPaths); + } + } + }); + stack.pop(); + return addedPaths; + } + + function analyzePath(path, type) { + if (fields == null) { + return; + } + + // If schema-level selected not set, nothing to do + if (typeof type.selected !== 'boolean') { + return; + } + + // User overwriting default exclusion + if (type.selected === false && fields[path]) { + return; + } + + // If set to 0, we're explicitly excluding the discriminator key. Can't do this for all fields, + // because we have tests that assert that using `-path` to exclude schema-level `select: true` + // fields counts as an exclusive projection. See gh-11546 + if (!exclude && type.selected && path === schema.options.discriminatorKey && fields[path] != null && !fields[path]) { + delete fields[path]; + return; + } + + if (exclude === false && type.selected && fields[path] != null && !fields[path]) { + delete fields[path]; + return; + } + + const plusPath = '+' + path; + const hasPlusPath = fields && plusPath in fields; + if (hasPlusPath) { + // forced inclusion + delete fields[plusPath]; + + // if there are other fields being included, add this one + // if no other included fields, leave this out (implied inclusion) + if (exclude === false && keys.length > 1 && !~keys.indexOf(path)) { + fields[path] = 1; + } + + return; + } + + // check for parent exclusions + const pieces = path.split('.'); + let cur = ''; + for (let i = 0; i < pieces.length; ++i) { + cur += cur.length ? '.' + pieces[i] : pieces[i]; + if (excluded.indexOf(cur) !== -1) { + return; + } + } + + // Special case: if user has included a parent path of a discriminator key, + // don't explicitly project in the discriminator key because that will + // project out everything else under the parent path + if (!exclude && (type && type.options && type.options.$skipDiscriminatorCheck || false)) { + let cur = ''; + for (let i = 0; i < pieces.length; ++i) { + cur += (cur.length === 0 ? '' : '.') + pieces[i]; + const projection = get(fields, cur, false) || get(fields, cur + '.$', false); + if (projection && typeof projection !== 'object') { + return; + } + } + } + + (type.selected ? selected : excluded).push(path); + return path; + } +}; + +/** + * Set each path query option to lean + * + * @param {Object} option + */ + +function makeLean(val) { + return function(option) { + option.options || (option.options = {}); + + if (val != null && Array.isArray(val.virtuals)) { + val = Object.assign({}, val); + val.virtuals = val.virtuals. + filter(path => typeof path === 'string' && path.startsWith(option.path + '.')). + map(path => path.slice(option.path.length + 1)); + } + + option.options.lean = val; + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema.js new file mode 100644 index 000000000..4dfefccf5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema.js @@ -0,0 +1,2832 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const EventEmitter = require('events').EventEmitter; +const Kareem = require('kareem'); +const MongooseError = require('./error/mongooseError'); +const SchemaType = require('./schemaType'); +const SchemaTypeOptions = require('./options/schemaTypeOptions'); +const VirtualOptions = require('./options/virtualOptions'); +const VirtualType = require('./virtualType'); +const addAutoId = require('./helpers/schema/addAutoId'); +const clone = require('./helpers/clone'); +const get = require('./helpers/get'); +const getConstructorName = require('./helpers/getConstructorName'); +const getIndexes = require('./helpers/schema/getIndexes'); +const handleReadPreferenceAliases = require('./helpers/query/handleReadPreferenceAliases'); +const idGetter = require('./helpers/schema/idGetter'); +const merge = require('./helpers/schema/merge'); +const mpath = require('mpath'); +const setPopulatedVirtualValue = require('./helpers/populate/setPopulatedVirtualValue'); +const setupTimestamps = require('./helpers/timestamps/setupTimestamps'); +const utils = require('./utils'); +const validateRef = require('./helpers/populate/validateRef'); +const util = require('util'); + +const hasNumericSubpathRegex = /\.\d+(\.|$)/; + +let MongooseTypes; + +const queryHooks = require('./constants').queryMiddlewareFunctions; +const documentHooks = require('./helpers/model/applyHooks').middlewareFunctions; +const hookNames = queryHooks.concat(documentHooks). + reduce((s, hook) => s.add(hook), new Set()); + +const isPOJO = utils.isPOJO; + +let id = 0; + +const numberRE = /^\d+$/; + +/** + * Schema constructor. + * + * #### Example: + * + * const child = new Schema({ name: String }); + * const schema = new Schema({ name: String, age: Number, children: [child] }); + * const Tree = mongoose.model('Tree', schema); + * + * // setting schema options + * new Schema({ name: String }, { id: false, autoIndex: false }) + * + * #### Options: + * + * - [autoIndex](https://mongoosejs.com/docs/guide.html#autoIndex): bool - defaults to null (which means use the connection's autoIndex option) + * - [autoCreate](https://mongoosejs.com/docs/guide.html#autoCreate): bool - defaults to null (which means use the connection's autoCreate option) + * - [bufferCommands](https://mongoosejs.com/docs/guide.html#bufferCommands): bool - defaults to true + * - [bufferTimeoutMS](https://mongoosejs.com/docs/guide.html#bufferTimeoutMS): number - defaults to 10000 (10 seconds). If `bufferCommands` is enabled, the amount of time Mongoose will wait for connectivity to be restablished before erroring out. + * - [capped](https://mongoosejs.com/docs/guide.html#capped): bool | number | object - defaults to false + * - [collection](https://mongoosejs.com/docs/guide.html#collection): string - no default + * - [discriminatorKey](https://mongoosejs.com/docs/guide.html#discriminatorKey): string - defaults to `__t` + * - [id](https://mongoosejs.com/docs/guide.html#id): bool - defaults to true + * - [_id](https://mongoosejs.com/docs/guide.html#_id): bool - defaults to true + * - [minimize](https://mongoosejs.com/docs/guide.html#minimize): bool - controls [document#toObject](https://mongoosejs.com/docs/api/document.html#Document.prototype.toObject()) behavior when called manually - defaults to true + * - [read](https://mongoosejs.com/docs/guide.html#read): string + * - [readConcern](https://mongoosejs.com/docs/guide.html#readConcern): object - defaults to null, use to set a default [read concern](https://www.mongodb.com/docs/manual/reference/read-concern/) for all queries. + * - [writeConcern](https://mongoosejs.com/docs/guide.html#writeConcern): object - defaults to null, use to override [the MongoDB server's default write concern settings](https://www.mongodb.com/docs/manual/reference/write-concern/) + * - [shardKey](https://mongoosejs.com/docs/guide.html#shardKey): object - defaults to `null` + * - [strict](https://mongoosejs.com/docs/guide.html#strict): bool - defaults to true + * - [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery): bool - defaults to false + * - [toJSON](https://mongoosejs.com/docs/guide.html#toJSON) - object - no default + * - [toObject](https://mongoosejs.com/docs/guide.html#toObject) - object - no default + * - [typeKey](https://mongoosejs.com/docs/guide.html#typeKey) - string - defaults to 'type' + * - [validateBeforeSave](https://mongoosejs.com/docs/guide.html#validateBeforeSave) - bool - defaults to `true` + * - [validateModifiedOnly](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()) - bool - defaults to `false` + * - [versionKey](https://mongoosejs.com/docs/guide.html#versionKey): string or object - defaults to "__v" + * - [optimisticConcurrency](https://mongoosejs.com/docs/guide.html#optimisticConcurrency): bool - defaults to false. Set to true to enable [optimistic concurrency](https://thecodebarbarian.com/whats-new-in-mongoose-5-10-optimistic-concurrency.html). + * - [collation](https://mongoosejs.com/docs/guide.html#collation): object - defaults to null (which means use no collation) + * - [timeseries](https://mongoosejs.com/docs/guide.html#timeseries): object - defaults to null (which means this schema's collection won't be a timeseries collection) + * - [selectPopulatedPaths](https://mongoosejs.com/docs/guide.html#selectPopulatedPaths): boolean - defaults to `true` + * - [skipVersioning](https://mongoosejs.com/docs/guide.html#skipVersioning): object - paths to exclude from versioning + * - [timestamps](https://mongoosejs.com/docs/guide.html#timestamps): object or boolean - defaults to `false`. If true, Mongoose adds `createdAt` and `updatedAt` properties to your schema and manages those properties for you. + * - [pluginTags](https://mongoosejs.com/docs/guide.html#pluginTags): array of strings - defaults to `undefined`. If set and plugin called with `tags` option, will only apply that plugin to schemas with a matching tag. + * - [virtuals](https://mongoosejs.com/docs/tutorials/virtuals.html#virtuals-via-schema-options): object - virtuals to define, alias for [`.virtual`](https://mongoosejs.com/docs/api/schema.html#Schema.prototype.virtual()) + * - [collectionOptions]: object with options passed to [`createCollection()`](https://www.mongodb.com/docs/manual/reference/method/db.createCollection/) when calling `Model.createCollection()` or `autoCreate` set to true. + * + * #### Options for Nested Schemas: + * + * - `excludeIndexes`: bool - defaults to `false`. If `true`, skip building indexes on this schema's paths. + * + * #### Note: + * + * _When nesting schemas, (`children` in the example above), always declare the child schema first before passing it into its parent._ + * + * @param {Object|Schema|Array} [definition] Can be one of: object describing schema paths, or schema to copy, or array of objects and schemas + * @param {Object} [options] + * @inherits NodeJS EventEmitter https://nodejs.org/api/events.html#class-eventemitter + * @event `init`: Emitted after the schema is compiled into a `Model`. + * @api public + */ + +function Schema(obj, options) { + if (!(this instanceof Schema)) { + return new Schema(obj, options); + } + + this.obj = obj; + this.paths = {}; + this.aliases = {}; + this.subpaths = {}; + this.virtuals = {}; + this.singleNestedPaths = {}; + this.nested = {}; + this.inherits = {}; + this.callQueue = []; + this._indexes = []; + this._searchIndexes = []; + this.methods = (options && options.methods) || {}; + this.methodOptions = {}; + this.statics = (options && options.statics) || {}; + this.tree = {}; + this.query = (options && options.query) || {}; + this.childSchemas = []; + this.plugins = []; + // For internal debugging. Do not use this to try to save a schema in MDB. + this.$id = ++id; + this.mapPaths = []; + + this.s = { + hooks: new Kareem() + }; + this.options = this.defaultOptions(options); + + // build paths + if (Array.isArray(obj)) { + for (const definition of obj) { + this.add(definition); + } + } else if (obj) { + this.add(obj); + } + + // build virtual paths + if (options && options.virtuals) { + const virtuals = options.virtuals; + const pathNames = Object.keys(virtuals); + for (const pathName of pathNames) { + const pathOptions = virtuals[pathName].options ? virtuals[pathName].options : undefined; + const virtual = this.virtual(pathName, pathOptions); + + if (virtuals[pathName].get) { + virtual.get(virtuals[pathName].get); + } + + if (virtuals[pathName].set) { + virtual.set(virtuals[pathName].set); + } + } + } + + // check if _id's value is a subdocument (gh-2276) + const _idSubDoc = obj && obj._id && utils.isObject(obj._id); + + // ensure the documents get an auto _id unless disabled + const auto_id = !this.paths['_id'] && + (this.options._id) && !_idSubDoc; + + if (auto_id) { + addAutoId(this); + } + + this.setupTimestamp(this.options.timestamps); +} + +/** + * Create virtual properties with alias field + * @api private + */ +function aliasFields(schema, paths) { + for (const path of Object.keys(paths)) { + let alias = null; + if (paths[path] != null) { + alias = paths[path]; + } else { + const options = get(schema.paths[path], 'options'); + if (options == null) { + continue; + } + + alias = options.alias; + } + + if (!alias) { + continue; + } + + const prop = schema.paths[path].path; + if (Array.isArray(alias)) { + for (const a of alias) { + if (typeof a !== 'string') { + throw new Error('Invalid value for alias option on ' + prop + ', got ' + a); + } + + schema.aliases[a] = prop; + + schema. + virtual(a). + get((function(p) { + return function() { + if (typeof this.get === 'function') { + return this.get(p); + } + return this[p]; + }; + })(prop)). + set((function(p) { + return function(v) { + return this.$set(p, v); + }; + })(prop)); + } + + continue; + } + + if (typeof alias !== 'string') { + throw new Error('Invalid value for alias option on ' + prop + ', got ' + alias); + } + + schema.aliases[alias] = prop; + + schema. + virtual(alias). + get((function(p) { + return function() { + if (typeof this.get === 'function') { + return this.get(p); + } + return this[p]; + }; + })(prop)). + set((function(p) { + return function(v) { + return this.$set(p, v); + }; + })(prop)); + } +} + +/*! + * Inherit from EventEmitter. + */ +Schema.prototype = Object.create(EventEmitter.prototype); +Schema.prototype.constructor = Schema; +Schema.prototype.instanceOfSchema = true; + +/*! + * ignore + */ + +Object.defineProperty(Schema.prototype, '$schemaType', { + configurable: false, + enumerable: false, + writable: true +}); + +/** + * Array of child schemas (from document arrays and single nested subdocs) + * and their corresponding compiled models. Each element of the array is + * an object with 2 properties: `schema` and `model`. + * + * This property is typically only useful for plugin authors and advanced users. + * You do not need to interact with this property at all to use mongoose. + * + * @api public + * @property childSchemas + * @memberOf Schema + * @instance + */ + +Object.defineProperty(Schema.prototype, 'childSchemas', { + configurable: false, + enumerable: true, + writable: true +}); + +/** + * Object containing all virtuals defined on this schema. + * The objects' keys are the virtual paths and values are instances of `VirtualType`. + * + * This property is typically only useful for plugin authors and advanced users. + * You do not need to interact with this property at all to use mongoose. + * + * #### Example: + * + * const schema = new Schema({}); + * schema.virtual('answer').get(() => 42); + * + * console.log(schema.virtuals); // { answer: VirtualType { path: 'answer', ... } } + * console.log(schema.virtuals['answer'].getters[0].call()); // 42 + * + * @api public + * @property virtuals + * @memberOf Schema + * @instance + */ + +Object.defineProperty(Schema.prototype, 'virtuals', { + configurable: false, + enumerable: true, + writable: true +}); + +/** + * The original object passed to the schema constructor + * + * #### Example: + * + * const schema = new Schema({ a: String }).add({ b: String }); + * schema.obj; // { a: String } + * + * @api public + * @property obj + * @memberOf Schema + * @instance + */ + +Schema.prototype.obj; + +/** + * The paths defined on this schema. The keys are the top-level paths + * in this schema, and the values are instances of the SchemaType class. + * + * #### Example: + * + * const schema = new Schema({ name: String }, { _id: false }); + * schema.paths; // { name: SchemaString { ... } } + * + * schema.add({ age: Number }); + * schema.paths; // { name: SchemaString { ... }, age: SchemaNumber { ... } } + * + * @api public + * @property paths + * @memberOf Schema + * @instance + */ + +Schema.prototype.paths; + +/** + * Schema as a tree + * + * #### Example: + * + * { + * '_id' : ObjectId + * , 'nested' : { + * 'key' : String + * } + * } + * + * @api private + * @property tree + * @memberOf Schema + * @instance + */ + +Schema.prototype.tree; + +/** + * Returns a deep copy of the schema + * + * #### Example: + * + * const schema = new Schema({ name: String }); + * const clone = schema.clone(); + * clone === schema; // false + * clone.path('name'); // SchemaString { ... } + * + * @return {Schema} the cloned schema + * @api public + * @memberOf Schema + * @instance + */ + +Schema.prototype.clone = function() { + const s = this._clone(); + + // Bubble up `init` for backwards compat + s.on('init', v => this.emit('init', v)); + + return s; +}; + +/*! + * ignore + */ + +Schema.prototype._clone = function _clone(Constructor) { + Constructor = Constructor || (this.base == null ? Schema : this.base.Schema); + + const s = new Constructor({}, this._userProvidedOptions); + s.base = this.base; + s.obj = this.obj; + s.options = clone(this.options); + s.callQueue = this.callQueue.map(function(f) { return f; }); + s.methods = clone(this.methods); + s.methodOptions = clone(this.methodOptions); + s.statics = clone(this.statics); + s.query = clone(this.query); + s.plugins = Array.prototype.slice.call(this.plugins); + s._indexes = clone(this._indexes); + s._searchIndexes = clone(this._searchIndexes); + s.s.hooks = this.s.hooks.clone(); + + s.tree = clone(this.tree); + s.paths = Object.fromEntries( + Object.entries(this.paths).map(([key, value]) => ([key, value.clone()])) + ); + s.nested = clone(this.nested); + s.subpaths = clone(this.subpaths); + for (const schemaType of Object.values(s.paths)) { + if (schemaType.$isSingleNested) { + const path = schemaType.path; + for (const key of Object.keys(schemaType.schema.paths)) { + s.singleNestedPaths[path + '.' + key] = schemaType.schema.paths[key]; + } + for (const key of Object.keys(schemaType.schema.singleNestedPaths)) { + s.singleNestedPaths[path + '.' + key] = + schemaType.schema.singleNestedPaths[key]; + } + for (const key of Object.keys(schemaType.schema.subpaths)) { + s.singleNestedPaths[path + '.' + key] = + schemaType.schema.subpaths[key]; + } + for (const key of Object.keys(schemaType.schema.nested)) { + s.singleNestedPaths[path + '.' + key] = 'nested'; + } + } + } + s.childSchemas = gatherChildSchemas(s); + + s.virtuals = clone(this.virtuals); + s.$globalPluginsApplied = this.$globalPluginsApplied; + s.$isRootDiscriminator = this.$isRootDiscriminator; + s.$implicitlyCreated = this.$implicitlyCreated; + s.$id = ++id; + s.$originalSchemaId = this.$id; + s.mapPaths = [].concat(this.mapPaths); + + if (this.discriminatorMapping != null) { + s.discriminatorMapping = Object.assign({}, this.discriminatorMapping); + } + if (this.discriminators != null) { + s.discriminators = Object.assign({}, this.discriminators); + } + if (this._applyDiscriminators != null) { + s._applyDiscriminators = new Map(this._applyDiscriminators); + } + + s.aliases = Object.assign({}, this.aliases); + + return s; +}; + +/** + * Returns a new schema that has the picked `paths` from this schema. + * + * This method is analagous to [Lodash's `pick()` function](https://lodash.com/docs/4.17.15#pick) for Mongoose schemas. + * + * #### Example: + * + * const schema = Schema({ name: String, age: Number }); + * // Creates a new schema with the same `name` path as `schema`, + * // but no `age` path. + * const newSchema = schema.pick(['name']); + * + * newSchema.path('name'); // SchemaString { ... } + * newSchema.path('age'); // undefined + * + * @param {String[]} paths List of Paths to pick for the new Schema + * @param {Object} [options] Options to pass to the new Schema Constructor (same as `new Schema(.., Options)`). Defaults to `this.options` if not set. + * @return {Schema} + * @api public + */ + +Schema.prototype.pick = function(paths, options) { + const newSchema = new Schema({}, options || this.options); + if (!Array.isArray(paths)) { + throw new MongooseError('Schema#pick() only accepts an array argument, ' + + 'got "' + typeof paths + '"'); + } + + for (const path of paths) { + if (this.nested[path]) { + newSchema.add({ [path]: get(this.tree, path) }); + } else { + const schematype = this.path(path); + if (schematype == null) { + throw new MongooseError('Path `' + path + '` is not in the schema'); + } + newSchema.add({ [path]: schematype }); + } + } + + return newSchema; +}; + +/** + * Returns a new schema that has the `paths` from the original schema, minus the omitted ones. + * + * This method is analagous to [Lodash's `omit()` function](https://lodash.com/docs/#omit) for Mongoose schemas. + * + * #### Example: + * + * const schema = Schema({ name: String, age: Number }); + * // Creates a new schema omitting the `age` path + * const newSchema = schema.omit(['age']); + * + * newSchema.path('name'); // SchemaString { ... } + * newSchema.path('age'); // undefined + * + * @param {String[]} paths List of Paths to omit for the new Schema + * @param {Object} [options] Options to pass to the new Schema Constructor (same as `new Schema(.., Options)`). Defaults to `this.options` if not set. + * @return {Schema} + * @api public + */ + +Schema.prototype.omit = function(paths, options) { + const newSchema = new Schema(this, options || this.options); + if (!Array.isArray(paths)) { + throw new MongooseError( + 'Schema#omit() only accepts an array argument, ' + + 'got "' + + typeof paths + + '"' + ); + } + + newSchema.remove(paths); + + for (const nested in newSchema.singleNestedPaths) { + if (paths.includes(nested)) { + delete newSchema.singleNestedPaths[nested]; + } + } + + return newSchema; +}; + +/** + * Returns default options for this schema, merged with `options`. + * + * @param {Object} [options] Options to overwrite the default options + * @return {Object} The merged options of `options` and the default options + * @api private + */ + +Schema.prototype.defaultOptions = function(options) { + this._userProvidedOptions = options == null ? {} : clone(options); + const baseOptions = this.base && this.base.options || {}; + const strict = 'strict' in baseOptions ? baseOptions.strict : true; + const strictQuery = 'strictQuery' in baseOptions ? baseOptions.strictQuery : false; + const id = 'id' in baseOptions ? baseOptions.id : true; + options = { + strict, + strictQuery, + bufferCommands: true, + capped: false, // { size, max, autoIndexId } + versionKey: '__v', + optimisticConcurrency: false, + minimize: true, + autoIndex: null, + discriminatorKey: '__t', + shardKey: null, + read: null, + validateBeforeSave: true, + validateModifiedOnly: false, + // the following are only applied at construction time + _id: true, + id: id, + typeKey: 'type', + ...options + }; + + if (options.versionKey && typeof options.versionKey !== 'string') { + throw new MongooseError('`versionKey` must be falsy or string, got `' + (typeof options.versionKey) + '`'); + } + + if (typeof options.read === 'string') { + options.read = handleReadPreferenceAliases(options.read); + } else if (Array.isArray(options.read) && typeof options.read[0] === 'string') { + options.read = { + mode: handleReadPreferenceAliases(options.read[0]), + tags: options.read[1] + }; + } + + if (options.optimisticConcurrency && !options.versionKey) { + throw new MongooseError('Must set `versionKey` if using `optimisticConcurrency`'); + } + + return options; +}; + +/** + * Inherit a Schema by applying a discriminator on an existing Schema. + * + * + * #### Example: + * + * const eventSchema = new mongoose.Schema({ timestamp: Date }, { discriminatorKey: 'kind' }); + * + * const clickedEventSchema = new mongoose.Schema({ element: String }, { discriminatorKey: 'kind' }); + * const ClickedModel = eventSchema.discriminator('clicked', clickedEventSchema); + * + * const Event = mongoose.model('Event', eventSchema); + * + * Event.discriminators['clicked']; // Model { clicked } + * + * const doc = await Event.create({ kind: 'clicked', element: '#hero' }); + * doc.element; // '#hero' + * doc instanceof ClickedModel; // true + * + * @param {String} name the name of the discriminator + * @param {Schema} schema the discriminated Schema + * @param {Object} [options] discriminator options + * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter. + * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning. + * @param {Boolean} [options.overwriteModels=false] by default, Mongoose does not allow you to define a discriminator with the same name as another discriminator. Set this to allow overwriting discriminators with the same name. + * @param {Boolean} [options.mergeHooks=true] By default, Mongoose merges the base schema's hooks with the discriminator schema's hooks. Set this option to `false` to make Mongoose use the discriminator schema's hooks instead. + * @param {Boolean} [options.mergePlugins=true] By default, Mongoose merges the base schema's plugins with the discriminator schema's plugins. Set this option to `false` to make Mongoose use the discriminator schema's plugins instead. + * @return {Schema} the Schema instance + * @api public + */ +Schema.prototype.discriminator = function(name, schema, options) { + this._applyDiscriminators = this._applyDiscriminators || new Map(); + this._applyDiscriminators.set(name, { schema, options }); + + return this; +}; + +/** + * Adds key path / schema type pairs to this schema. + * + * #### Example: + * + * const ToySchema = new Schema(); + * ToySchema.add({ name: 'string', color: 'string', price: 'number' }); + * + * const TurboManSchema = new Schema(); + * // You can also `add()` another schema and copy over all paths, virtuals, + * // getters, setters, indexes, methods, and statics. + * TurboManSchema.add(ToySchema).add({ year: Number }); + * + * @param {Object|Schema} obj plain object with paths to add, or another schema + * @param {String} [prefix] path to prefix the newly added paths with + * @return {Schema} the Schema instance + * @api public + */ + +Schema.prototype.add = function add(obj, prefix) { + if (obj instanceof Schema || (obj != null && obj.instanceOfSchema)) { + merge(this, obj); + + return this; + } + + // Special case: setting top-level `_id` to false should convert to disabling + // the `_id` option. This behavior never worked before 5.4.11 but numerous + // codebases use it (see gh-7516, gh-7512). + if (obj._id === false && prefix == null) { + this.options._id = false; + } + + prefix = prefix || ''; + // avoid prototype pollution + if (prefix === '__proto__.' || prefix === 'constructor.' || prefix === 'prototype.') { + return this; + } + + const keys = Object.keys(obj); + const typeKey = this.options.typeKey; + for (const key of keys) { + if (utils.specialProperties.has(key)) { + continue; + } + + const fullPath = prefix + key; + const val = obj[key]; + + if (val == null) { + throw new TypeError('Invalid value for schema path `' + fullPath + + '`, got value "' + val + '"'); + } + // Retain `_id: false` but don't set it as a path, re: gh-8274. + if (key === '_id' && val === false) { + continue; + } + // Deprecate setting schema paths to primitive types (gh-7558) + let isMongooseTypeString = false; + if (typeof val === 'string') { + // Handle the case in which the type is specified as a string (eg. 'date', 'oid', ...) + const MongooseTypes = this.base != null ? this.base.Schema.Types : Schema.Types; + const upperVal = val.charAt(0).toUpperCase() + val.substring(1); + isMongooseTypeString = MongooseTypes[upperVal] != null; + } + if ( + key !== '_id' && + ((typeof val !== 'object' && typeof val !== 'function' && !isMongooseTypeString) || + val == null) + ) { + throw new TypeError(`Invalid schema configuration: \`${val}\` is not ` + + `a valid type at path \`${key}\`. See ` + + 'https://bit.ly/mongoose-schematypes for a list of valid schema types.'); + } + if (val instanceof VirtualType || (val.constructor && val.constructor.name || null) === 'VirtualType') { + this.virtual(val); + continue; + } + + if (Array.isArray(val) && val.length === 1 && val[0] == null) { + throw new TypeError('Invalid value for schema Array path `' + fullPath + + '`, got value "' + val[0] + '"'); + } + + if (!(isPOJO(val) || val instanceof SchemaTypeOptions)) { + // Special-case: Non-options definitely a path so leaf at this node + // Examples: Schema instances, SchemaType instances + if (prefix) { + this.nested[prefix.substring(0, prefix.length - 1)] = true; + } + this.path(prefix + key, val); + if (val[0] != null && !(val[0].instanceOfSchema) && utils.isPOJO(val[0].discriminators)) { + const schemaType = this.path(prefix + key); + for (const key in val[0].discriminators) { + schemaType.discriminator(key, val[0].discriminators[key]); + } + } + } else if (Object.keys(val).length < 1) { + // Special-case: {} always interpreted as Mixed path so leaf at this node + if (prefix) { + this.nested[prefix.substring(0, prefix.length - 1)] = true; + } + this.path(fullPath, val); // mixed type + } else if (!val[typeKey] || (typeKey === 'type' && isPOJO(val.type) && val.type.type)) { + // Special-case: POJO with no bona-fide type key - interpret as tree of deep paths so recurse + // nested object `{ last: { name: String } }`. Avoid functions with `.type` re: #10807 because + // NestJS sometimes adds `Date.type`. + this.nested[fullPath] = true; + this.add(val, fullPath + '.'); + } else { + // There IS a bona-fide type key that may also be a POJO + const _typeDef = val[typeKey]; + if (isPOJO(_typeDef) && Object.keys(_typeDef).length > 0) { + // If a POJO is the value of a type key, make it a subdocument + if (prefix) { + this.nested[prefix.substring(0, prefix.length - 1)] = true; + } + + const childSchemaOptions = {}; + if (this._userProvidedOptions.typeKey) { + childSchemaOptions.typeKey = this._userProvidedOptions.typeKey; + } + // propagate 'strict' option to child schema + if (this._userProvidedOptions.strict != null) { + childSchemaOptions.strict = this._userProvidedOptions.strict; + } + if (this._userProvidedOptions.toObject != null) { + childSchemaOptions.toObject = utils.omit(this._userProvidedOptions.toObject, ['transform']); + } + if (this._userProvidedOptions.toJSON != null) { + childSchemaOptions.toJSON = utils.omit(this._userProvidedOptions.toJSON, ['transform']); + } + + const _schema = new Schema(_typeDef, childSchemaOptions); + _schema.$implicitlyCreated = true; + const schemaWrappedPath = Object.assign({}, val, { [typeKey]: _schema }); + this.path(prefix + key, schemaWrappedPath); + } else { + // Either the type is non-POJO or we interpret it as Mixed anyway + if (prefix) { + this.nested[prefix.substring(0, prefix.length - 1)] = true; + } + this.path(prefix + key, val); + if (val != null && !(val.instanceOfSchema) && utils.isPOJO(val.discriminators)) { + const schemaType = this.path(prefix + key); + for (const key in val.discriminators) { + schemaType.discriminator(key, val.discriminators[key]); + } + } + } + } + } + + const aliasObj = Object.fromEntries( + Object.entries(obj).map(([key]) => ([prefix + key, null])) + ); + aliasFields(this, aliasObj); + return this; +}; + +/** + * Add an alias for `path`. This means getting or setting the `alias` + * is equivalent to getting or setting the `path`. + * + * #### Example: + * + * const toySchema = new Schema({ n: String }); + * + * // Make 'name' an alias for 'n' + * toySchema.alias('n', 'name'); + * + * const Toy = mongoose.model('Toy', toySchema); + * const turboMan = new Toy({ n: 'Turbo Man' }); + * + * turboMan.name; // 'Turbo Man' + * turboMan.n; // 'Turbo Man' + * + * turboMan.name = 'Turbo Man Action Figure'; + * turboMan.n; // 'Turbo Man Action Figure' + * + * await turboMan.save(); // Saves { _id: ..., n: 'Turbo Man Action Figure' } + * + * + * @param {String} path real path to alias + * @param {String|String[]} alias the path(s) to use as an alias for `path` + * @return {Schema} the Schema instance + * @api public + */ + +Schema.prototype.alias = function alias(path, alias) { + aliasFields(this, { [path]: alias }); + return this; +}; + +/** + * Remove an index by name or index specification. + * + * removeIndex only removes indexes from your schema object. Does **not** affect the indexes + * in MongoDB. + * + * #### Example: + * + * const ToySchema = new Schema({ name: String, color: String, price: Number }); + * + * // Add a new index on { name, color } + * ToySchema.index({ name: 1, color: 1 }); + * + * // Remove index on { name, color } + * // Keep in mind that order matters! `removeIndex({ color: 1, name: 1 })` won't remove the index + * ToySchema.removeIndex({ name: 1, color: 1 }); + * + * // Add an index with a custom name + * ToySchema.index({ color: 1 }, { name: 'my custom index name' }); + * // Remove index by name + * ToySchema.removeIndex('my custom index name'); + * + * @param {Object|string} index name or index specification + * @return {Schema} the Schema instance + * @api public + */ + +Schema.prototype.removeIndex = function removeIndex(index) { + if (arguments.length > 1) { + throw new Error('removeIndex() takes only 1 argument'); + } + + if (typeof index !== 'object' && typeof index !== 'string') { + throw new Error('removeIndex() may only take either an object or a string as an argument'); + } + + if (typeof index === 'object') { + for (let i = this._indexes.length - 1; i >= 0; --i) { + if (util.isDeepStrictEqual(this._indexes[i][0], index)) { + this._indexes.splice(i, 1); + } + } + } else { + for (let i = this._indexes.length - 1; i >= 0; --i) { + if (this._indexes[i][1] != null && this._indexes[i][1].name === index) { + this._indexes.splice(i, 1); + } + } + } + + return this; +}; + +/** + * Remove all indexes from this schema. + * + * clearIndexes only removes indexes from your schema object. Does **not** affect the indexes + * in MongoDB. + * + * #### Example: + * + * const ToySchema = new Schema({ name: String, color: String, price: Number }); + * ToySchema.index({ name: 1 }); + * ToySchema.index({ color: 1 }); + * + * // Remove all indexes on this schema + * ToySchema.clearIndexes(); + * + * ToySchema.indexes(); // [] + * + * @return {Schema} the Schema instance + * @api public + */ + +Schema.prototype.clearIndexes = function clearIndexes() { + this._indexes.length = 0; + + return this; +}; + +/** + * Add an [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) that Mongoose will create using `Model.createSearchIndex()`. + * This function only works when connected to MongoDB Atlas. + * + * #### Example: + * + * const ToySchema = new Schema({ name: String, color: String, price: Number }); + * ToySchema.searchIndex({ name: 'test', definition: { mappings: { dynamic: true } } }); + * + * @param {Object} description index options, including `name` and `definition` + * @param {String} description.name + * @param {Object} description.definition + * @return {Schema} the Schema instance + * @api public + */ + +Schema.prototype.searchIndex = function searchIndex(description) { + this._searchIndexes.push(description); + + return this; +}; + +/** + * Reserved document keys. + * + * Keys in this object are names that are warned in schema declarations + * because they have the potential to break Mongoose/ Mongoose plugins functionality. If you create a schema + * using `new Schema()` with one of these property names, Mongoose will log a warning. + * + * - _posts + * - _pres + * - collection + * - emit + * - errors + * - get + * - init + * - isModified + * - isNew + * - listeners + * - modelName + * - on + * - once + * - populated + * - prototype + * - remove + * - removeListener + * - save + * - schema + * - toObject + * - validate + * + * _NOTE:_ Use of these terms as method names is permitted, but play at your own risk, as they may be existing mongoose document methods you are stomping on. + * + * const schema = new Schema(..); + * schema.methods.init = function () {} // potentially breaking + * + * @property reserved + * @memberOf Schema + * @static + */ + +Schema.reserved = Object.create(null); +Schema.prototype.reserved = Schema.reserved; + +const reserved = Schema.reserved; +// Core object +reserved['prototype'] = +// EventEmitter +reserved.emit = +reserved.listeners = +reserved.removeListener = + +// document properties and functions +reserved.collection = +reserved.errors = +reserved.get = +reserved.init = +reserved.isModified = +reserved.isNew = +reserved.populated = +reserved.remove = +reserved.save = +reserved.toObject = +reserved.validate = 1; +reserved.collection = 1; + +/** + * Gets/sets schema paths. + * + * Sets a path (if arity 2) + * Gets a path (if arity 1) + * + * #### Example: + * + * schema.path('name') // returns a SchemaType + * schema.path('name', Number) // changes the schemaType of `name` to Number + * + * @param {String} path The name of the Path to get / set + * @param {Object} [obj] The Type to set the path to, if provided the path will be SET, otherwise the path will be GET + * @api public + */ + +Schema.prototype.path = function(path, obj) { + if (obj === undefined) { + if (this.paths[path] != null) { + return this.paths[path]; + } + // Convert to '.$' to check subpaths re: gh-6405 + const cleanPath = _pathToPositionalSyntax(path); + let schematype = _getPath(this, path, cleanPath); + if (schematype != null) { + return schematype; + } + + // Look for maps + const mapPath = getMapPath(this, path); + if (mapPath != null) { + return mapPath; + } + + // Look if a parent of this path is mixed + schematype = this.hasMixedParent(cleanPath); + if (schematype != null) { + return schematype; + } + + // subpaths? + return hasNumericSubpathRegex.test(path) + ? getPositionalPath(this, path, cleanPath) + : undefined; + } + + // some path names conflict with document methods + const firstPieceOfPath = path.split('.')[0]; + if (reserved[firstPieceOfPath] && !this.options.suppressReservedKeysWarning) { + const errorMessage = `\`${firstPieceOfPath}\` is a reserved schema pathname and may break some functionality. ` + + 'You are allowed to use it, but use at your own risk. ' + + 'To disable this warning pass `suppressReservedKeysWarning` as a schema option.'; + + utils.warn(errorMessage); + } + + if (typeof obj === 'object' && utils.hasUserDefinedProperty(obj, 'ref')) { + validateRef(obj.ref, path); + } + + // update the tree + const subpaths = path.split(/\./); + const last = subpaths.pop(); + let branch = this.tree; + let fullPath = ''; + + for (const sub of subpaths) { + if (utils.specialProperties.has(sub)) { + throw new Error('Cannot set special property `' + sub + '` on a schema'); + } + fullPath = fullPath += (fullPath.length > 0 ? '.' : '') + sub; + if (!branch[sub]) { + this.nested[fullPath] = true; + branch[sub] = {}; + } + if (typeof branch[sub] !== 'object') { + const msg = 'Cannot set nested path `' + path + '`. ' + + 'Parent path `' + + fullPath + + '` already set to type ' + branch[sub].name + + '.'; + throw new Error(msg); + } + branch = branch[sub]; + } + + branch[last] = clone(obj); + + this.paths[path] = this.interpretAsType(path, obj, this.options); + const schemaType = this.paths[path]; + + if (schemaType.$isSchemaMap) { + // Maps can have arbitrary keys, so `$*` is internal shorthand for "any key" + // The '$' is to imply this path should never be stored in MongoDB so we + // can easily build a regexp out of this path, and '*' to imply "any key." + const mapPath = path + '.$*'; + + this.paths[mapPath] = schemaType.$__schemaType; + this.mapPaths.push(this.paths[mapPath]); + } + + if (schemaType.$isSingleNested) { + for (const key of Object.keys(schemaType.schema.paths)) { + this.singleNestedPaths[path + '.' + key] = schemaType.schema.paths[key]; + } + for (const key of Object.keys(schemaType.schema.singleNestedPaths)) { + this.singleNestedPaths[path + '.' + key] = + schemaType.schema.singleNestedPaths[key]; + } + for (const key of Object.keys(schemaType.schema.subpaths)) { + this.singleNestedPaths[path + '.' + key] = + schemaType.schema.subpaths[key]; + } + for (const key of Object.keys(schemaType.schema.nested)) { + this.singleNestedPaths[path + '.' + key] = 'nested'; + } + + Object.defineProperty(schemaType.schema, 'base', { + configurable: true, + enumerable: false, + writable: false, + value: this.base + }); + + schemaType.caster.base = this.base; + this.childSchemas.push({ + schema: schemaType.schema, + model: schemaType.caster + }); + } else if (schemaType.$isMongooseDocumentArray) { + Object.defineProperty(schemaType.schema, 'base', { + configurable: true, + enumerable: false, + writable: false, + value: this.base + }); + + schemaType.casterConstructor.base = this.base; + this.childSchemas.push({ + schema: schemaType.schema, + model: schemaType.casterConstructor + }); + } + + if (schemaType.$isMongooseArray && schemaType.caster instanceof SchemaType) { + let arrayPath = path; + let _schemaType = schemaType; + + const toAdd = []; + while (_schemaType.$isMongooseArray) { + arrayPath = arrayPath + '.$'; + + // Skip arrays of document arrays + if (_schemaType.$isMongooseDocumentArray) { + _schemaType.$embeddedSchemaType._arrayPath = arrayPath; + _schemaType.$embeddedSchemaType._arrayParentPath = path; + _schemaType = _schemaType.$embeddedSchemaType; + } else { + _schemaType.caster._arrayPath = arrayPath; + _schemaType.caster._arrayParentPath = path; + _schemaType = _schemaType.caster; + } + + this.subpaths[arrayPath] = _schemaType; + } + + for (const _schemaType of toAdd) { + this.subpaths[_schemaType.path] = _schemaType; + } + } + + if (schemaType.$isMongooseDocumentArray) { + for (const key of Object.keys(schemaType.schema.paths)) { + const _schemaType = schemaType.schema.paths[key]; + this.subpaths[path + '.' + key] = _schemaType; + if (typeof _schemaType === 'object' && _schemaType != null && _schemaType.$parentSchemaDocArray == null) { + _schemaType.$parentSchemaDocArray = schemaType; + } + } + for (const key of Object.keys(schemaType.schema.subpaths)) { + const _schemaType = schemaType.schema.subpaths[key]; + this.subpaths[path + '.' + key] = _schemaType; + if (typeof _schemaType === 'object' && _schemaType != null && _schemaType.$parentSchemaDocArray == null) { + _schemaType.$parentSchemaDocArray = schemaType; + } + } + for (const key of Object.keys(schemaType.schema.singleNestedPaths)) { + const _schemaType = schemaType.schema.singleNestedPaths[key]; + this.subpaths[path + '.' + key] = _schemaType; + if (typeof _schemaType === 'object' && _schemaType != null && _schemaType.$parentSchemaDocArray == null) { + _schemaType.$parentSchemaDocArray = schemaType; + } + } + } + + return this; +}; + +/*! + * ignore + */ + +function gatherChildSchemas(schema) { + const childSchemas = []; + + for (const path of Object.keys(schema.paths)) { + const schematype = schema.paths[path]; + if (schematype.$isMongooseDocumentArray || schematype.$isSingleNested) { + childSchemas.push({ schema: schematype.schema, model: schematype.caster }); + } + } + + return childSchemas; +} + +/*! + * ignore + */ + +function _getPath(schema, path, cleanPath) { + if (schema.paths.hasOwnProperty(path)) { + return schema.paths[path]; + } + if (schema.subpaths.hasOwnProperty(cleanPath)) { + const subpath = schema.subpaths[cleanPath]; + if (subpath === 'nested') { + return undefined; + } + return subpath; + } + if (schema.singleNestedPaths.hasOwnProperty(cleanPath) && typeof schema.singleNestedPaths[cleanPath] === 'object') { + const singleNestedPath = schema.singleNestedPaths[cleanPath]; + if (singleNestedPath === 'nested') { + return undefined; + } + return singleNestedPath; + } + + return null; +} + +/*! + * ignore + */ + +function _pathToPositionalSyntax(path) { + if (!/\.\d+/.test(path)) { + return path; + } + return path.replace(/\.\d+\./g, '.$.').replace(/\.\d+$/, '.$'); +} + +/*! + * ignore + */ + +function getMapPath(schema, path) { + if (schema.mapPaths.length === 0) { + return null; + } + for (const val of schema.mapPaths) { + const _path = val.path; + const re = new RegExp('^' + _path.replace(/\.\$\*/g, '\\.[^.]+') + '$'); + if (re.test(path)) { + return schema.paths[_path]; + } + } + + return null; +} + +/** + * The Mongoose instance this schema is associated with + * + * @property base + * @api private + */ + +Object.defineProperty(Schema.prototype, 'base', { + configurable: true, + enumerable: false, + writable: true, + value: null +}); + +/** + * Converts type arguments into Mongoose Types. + * + * @param {String} path + * @param {Object} obj constructor + * @param {Object} options + * @api private + */ + +Schema.prototype.interpretAsType = function(path, obj, options) { + if (obj instanceof SchemaType) { + if (obj.path === path) { + return obj; + } + const clone = obj.clone(); + clone.path = path; + return clone; + } + + + // If this schema has an associated Mongoose object, use the Mongoose object's + // copy of SchemaTypes re: gh-7158 gh-6933 + const MongooseTypes = this.base != null ? this.base.Schema.Types : Schema.Types; + const Types = this.base != null ? this.base.Types : require('./types'); + + if (!utils.isPOJO(obj) && !(obj instanceof SchemaTypeOptions)) { + const constructorName = utils.getFunctionName(obj.constructor); + if (constructorName !== 'Object') { + const oldObj = obj; + obj = {}; + obj[options.typeKey] = oldObj; + } + } + + // Get the type making sure to allow keys named "type" + // and default to mixed if not specified. + // { type: { type: String, default: 'freshcut' } } + let type = obj[options.typeKey] && (obj[options.typeKey] instanceof Function || options.typeKey !== 'type' || !obj.type.type) + ? obj[options.typeKey] + : {}; + let name; + + if (utils.isPOJO(type) || type === 'mixed') { + return new MongooseTypes.Mixed(path, obj); + } + + if (Array.isArray(type) || type === Array || type === 'array' || type === MongooseTypes.Array) { + // if it was specified through { type } look for `cast` + let cast = (type === Array || type === 'array') + ? obj.cast || obj.of + : type[0]; + + // new Schema({ path: [new Schema({ ... })] }) + if (cast && cast.instanceOfSchema) { + if (!(cast instanceof Schema)) { + if (this.options._isMerging) { + cast = new Schema(cast); + } else { + throw new TypeError('Schema for array path `' + path + + '` is from a different copy of the Mongoose module. ' + + 'Please make sure you\'re using the same version ' + + 'of Mongoose everywhere with `npm list mongoose`. If you are still ' + + 'getting this error, please add `new Schema()` around the path: ' + + `${path}: new Schema(...)`); + } + } + return new MongooseTypes.DocumentArray(path, cast, obj); + } + if (cast && + cast[options.typeKey] && + cast[options.typeKey].instanceOfSchema) { + if (!(cast[options.typeKey] instanceof Schema)) { + if (this.options._isMerging) { + cast[options.typeKey] = new Schema(cast[options.typeKey]); + } else { + throw new TypeError('Schema for array path `' + path + + '` is from a different copy of the Mongoose module. ' + + 'Please make sure you\'re using the same version ' + + 'of Mongoose everywhere with `npm list mongoose`. If you are still ' + + 'getting this error, please add `new Schema()` around the path: ' + + `${path}: new Schema(...)`); + } + } + return new MongooseTypes.DocumentArray(path, cast[options.typeKey], obj, cast); + } + if (typeof cast !== 'undefined') { + if (Array.isArray(cast) || cast.type === Array || cast.type == 'Array') { + if (cast && cast.type == 'Array') { + cast.type = Array; + } + return new MongooseTypes.Array(path, this.interpretAsType(path, cast, options), obj); + } + } + + // Handle both `new Schema({ arr: [{ subpath: String }] })` and `new Schema({ arr: [{ type: { subpath: string } }] })` + const castFromTypeKey = (cast != null && cast[options.typeKey] && (options.typeKey !== 'type' || !cast.type.type)) ? + cast[options.typeKey] : + cast; + if (typeof cast === 'string') { + cast = MongooseTypes[cast.charAt(0).toUpperCase() + cast.substring(1)]; + } else if (utils.isPOJO(castFromTypeKey)) { + if (Object.keys(castFromTypeKey).length) { + // The `minimize` and `typeKey` options propagate to child schemas + // declared inline, like `{ arr: [{ val: { $type: String } }] }`. + // See gh-3560 + const childSchemaOptions = { minimize: options.minimize }; + if (options.typeKey) { + childSchemaOptions.typeKey = options.typeKey; + } + // propagate 'strict' option to child schema + if (options.hasOwnProperty('strict')) { + childSchemaOptions.strict = options.strict; + } + if (options.hasOwnProperty('strictQuery')) { + childSchemaOptions.strictQuery = options.strictQuery; + } + if (options.hasOwnProperty('toObject')) { + childSchemaOptions.toObject = utils.omit(options.toObject, ['transform']); + } + if (options.hasOwnProperty('toJSON')) { + childSchemaOptions.toJSON = utils.omit(options.toJSON, ['transform']); + } + + if (this._userProvidedOptions.hasOwnProperty('_id')) { + childSchemaOptions._id = this._userProvidedOptions._id; + } else if (Schema.Types.DocumentArray.defaultOptions._id != null) { + childSchemaOptions._id = Schema.Types.DocumentArray.defaultOptions._id; + } + + const childSchema = new Schema(castFromTypeKey, childSchemaOptions); + childSchema.$implicitlyCreated = true; + return new MongooseTypes.DocumentArray(path, childSchema, obj); + } else { + // Special case: empty object becomes mixed + return new MongooseTypes.Array(path, MongooseTypes.Mixed, obj); + } + } + + if (cast) { + type = cast[options.typeKey] && (options.typeKey !== 'type' || !cast.type.type) + ? cast[options.typeKey] + : cast; + if (Array.isArray(type)) { + return new MongooseTypes.Array(path, this.interpretAsType(path, type, options), obj); + } + + name = typeof type === 'string' + ? type + : type.schemaName || utils.getFunctionName(type); + + // For Jest 26+, see #10296 + if (name === 'ClockDate') { + name = 'Date'; + } + + if (name === void 0) { + throw new TypeError('Invalid schema configuration: ' + + `Could not determine the embedded type for array \`${path}\`. ` + + 'See https://mongoosejs.com/docs/guide.html#definition for more info on supported schema syntaxes.'); + } + if (!MongooseTypes.hasOwnProperty(name)) { + throw new TypeError('Invalid schema configuration: ' + + `\`${name}\` is not a valid type within the array \`${path}\`.` + + 'See https://bit.ly/mongoose-schematypes for a list of valid schema types.'); + } + } + + return new MongooseTypes.Array(path, cast || MongooseTypes.Mixed, obj, options); + } + + if (type && type.instanceOfSchema) { + return new MongooseTypes.Subdocument(type, path, obj); + } + + if (Buffer.isBuffer(type)) { + name = 'Buffer'; + } else if (typeof type === 'function' || typeof type === 'object') { + name = type.schemaName || utils.getFunctionName(type); + } else if (type === Types.ObjectId) { + name = 'ObjectId'; + } else if (type === Types.Decimal128) { + name = 'Decimal128'; + } else { + name = type == null ? '' + type : type.toString(); + } + + if (name) { + name = name.charAt(0).toUpperCase() + name.substring(1); + } + // Special case re: gh-7049 because the bson `ObjectID` class' capitalization + // doesn't line up with Mongoose's. + if (name === 'ObjectID') { + name = 'ObjectId'; + } + // For Jest 26+, see #10296 + if (name === 'ClockDate') { + name = 'Date'; + } + + if (name === void 0) { + throw new TypeError(`Invalid schema configuration: \`${path}\` schematype definition is ` + + 'invalid. See ' + + 'https://mongoosejs.com/docs/guide.html#definition for more info on supported schema syntaxes.'); + } + if (MongooseTypes[name] == null) { + throw new TypeError(`Invalid schema configuration: \`${name}\` is not ` + + `a valid type at path \`${path}\`. See ` + + 'https://bit.ly/mongoose-schematypes for a list of valid schema types.'); + } + + const schemaType = new MongooseTypes[name](path, obj); + + if (schemaType.$isSchemaMap) { + createMapNestedSchemaType(this, schemaType, path, obj, options); + } + + return schemaType; +}; + +/*! + * ignore + */ + +function createMapNestedSchemaType(schema, schemaType, path, obj, options) { + const mapPath = path + '.$*'; + let _mapType = { type: {} }; + if (utils.hasUserDefinedProperty(obj, 'of')) { + const isInlineSchema = utils.isPOJO(obj.of) && + Object.keys(obj.of).length > 0 && + !utils.hasUserDefinedProperty(obj.of, schema.options.typeKey); + if (isInlineSchema) { + _mapType = { [schema.options.typeKey]: new Schema(obj.of) }; + } else if (utils.isPOJO(obj.of)) { + _mapType = Object.assign({}, obj.of); + } else { + _mapType = { [schema.options.typeKey]: obj.of }; + } + + if (_mapType[schema.options.typeKey] && _mapType[schema.options.typeKey].instanceOfSchema) { + const subdocumentSchema = _mapType[schema.options.typeKey]; + subdocumentSchema.eachPath((subpath, type) => { + if (type.options.select === true || type.options.select === false) { + throw new MongooseError('Cannot use schema-level projections (`select: true` or `select: false`) within maps at path "' + path + '.' + subpath + '"'); + } + }); + } + + if (utils.hasUserDefinedProperty(obj, 'ref')) { + _mapType.ref = obj.ref; + } + } + schemaType.$__schemaType = schema.interpretAsType(mapPath, _mapType, options); +} + +/** + * Iterates the schemas paths similar to Array#forEach. + * + * The callback is passed the pathname and the schemaType instance. + * + * #### Example: + * + * const userSchema = new Schema({ name: String, registeredAt: Date }); + * userSchema.eachPath((pathname, schematype) => { + * // Prints twice: + * // name SchemaString { ... } + * // registeredAt SchemaDate { ... } + * console.log(pathname, schematype); + * }); + * + * @param {Function} fn callback function + * @return {Schema} this + * @api public + */ + +Schema.prototype.eachPath = function(fn) { + const keys = Object.keys(this.paths); + const len = keys.length; + + for (let i = 0; i < len; ++i) { + fn(keys[i], this.paths[keys[i]]); + } + + return this; +}; + +/** + * Returns an Array of path strings that are required by this schema. + * + * #### Example: + * + * const s = new Schema({ + * name: { type: String, required: true }, + * age: { type: String, required: true }, + * notes: String + * }); + * s.requiredPaths(); // [ 'age', 'name' ] + * + * @api public + * @param {Boolean} invalidate Refresh the cache + * @return {Array} + */ + +Schema.prototype.requiredPaths = function requiredPaths(invalidate) { + if (this._requiredpaths && !invalidate) { + return this._requiredpaths; + } + + const paths = Object.keys(this.paths); + let i = paths.length; + const ret = []; + + while (i--) { + const path = paths[i]; + if (this.paths[path].isRequired) { + ret.push(path); + } + } + this._requiredpaths = ret; + return this._requiredpaths; +}; + +/** + * Returns indexes from fields and schema-level indexes (cached). + * + * @api private + * @return {Array} + */ + +Schema.prototype.indexedPaths = function indexedPaths() { + if (this._indexedpaths) { + return this._indexedpaths; + } + this._indexedpaths = this.indexes(); + return this._indexedpaths; +}; + +/** + * Returns the pathType of `path` for this schema. + * + * Given a path, returns whether it is a real, virtual, nested, or ad-hoc/undefined path. + * + * #### Example: + * + * const s = new Schema({ name: String, nested: { foo: String } }); + * s.virtual('foo').get(() => 42); + * s.pathType('name'); // "real" + * s.pathType('nested'); // "nested" + * s.pathType('foo'); // "virtual" + * s.pathType('fail'); // "adhocOrUndefined" + * + * @param {String} path + * @return {String} + * @api public + */ + +Schema.prototype.pathType = function(path) { + if (this.paths.hasOwnProperty(path)) { + return 'real'; + } + if (this.virtuals.hasOwnProperty(path)) { + return 'virtual'; + } + if (this.nested.hasOwnProperty(path)) { + return 'nested'; + } + + // Convert to '.$' to check subpaths re: gh-6405 + const cleanPath = _pathToPositionalSyntax(path); + + if (this.subpaths.hasOwnProperty(cleanPath) || this.subpaths.hasOwnProperty(path)) { + return 'real'; + } + + const singleNestedPath = this.singleNestedPaths.hasOwnProperty(cleanPath) || this.singleNestedPaths.hasOwnProperty(path); + if (singleNestedPath) { + return singleNestedPath === 'nested' ? 'nested' : 'real'; + } + + // Look for maps + const mapPath = getMapPath(this, path); + if (mapPath != null) { + return 'real'; + } + + if (/\.\d+\.|\.\d+$/.test(path)) { + return getPositionalPathType(this, path, cleanPath); + } + return 'adhocOrUndefined'; +}; + +/** + * Returns true iff this path is a child of a mixed schema. + * + * @param {String} path + * @return {Boolean} + * @api private + */ + +Schema.prototype.hasMixedParent = function(path) { + const subpaths = path.split(/\./g); + path = ''; + for (let i = 0; i < subpaths.length; ++i) { + path = i > 0 ? path + '.' + subpaths[i] : subpaths[i]; + if (this.paths.hasOwnProperty(path) && + this.paths[path] instanceof MongooseTypes.Mixed) { + return this.paths[path]; + } + } + + return null; +}; + +/** + * Setup updatedAt and createdAt timestamps to documents if enabled + * + * @param {Boolean|Object} timestamps timestamps options + * @api private + */ +Schema.prototype.setupTimestamp = function(timestamps) { + return setupTimestamps(this, timestamps); +}; + +/** + * ignore. Deprecated re: #6405 + * @param {Any} self + * @param {String} path + * @api private + */ + +function getPositionalPathType(self, path, cleanPath) { + const subpaths = path.split(/\.(\d+)\.|\.(\d+)$/).filter(Boolean); + if (subpaths.length < 2) { + return self.paths.hasOwnProperty(subpaths[0]) ? + self.paths[subpaths[0]] : + 'adhocOrUndefined'; + } + + let val = self.path(subpaths[0]); + let isNested = false; + if (!val) { + return 'adhocOrUndefined'; + } + + const last = subpaths.length - 1; + + for (let i = 1; i < subpaths.length; ++i) { + isNested = false; + const subpath = subpaths[i]; + + if (i === last && val && !/\D/.test(subpath)) { + if (val.$isMongooseDocumentArray) { + val = val.$embeddedSchemaType; + } else if (val instanceof MongooseTypes.Array) { + // StringSchema, NumberSchema, etc + val = val.caster; + } else { + val = undefined; + } + break; + } + + // ignore if its just a position segment: path.0.subpath + if (!/\D/.test(subpath)) { + // Nested array + if (val instanceof MongooseTypes.Array && i !== last) { + val = val.caster; + } + continue; + } + + if (!(val && val.schema)) { + val = undefined; + break; + } + + const type = val.schema.pathType(subpath); + isNested = (type === 'nested'); + val = val.schema.path(subpath); + } + + self.subpaths[cleanPath] = val; + if (val) { + return 'real'; + } + if (isNested) { + return 'nested'; + } + return 'adhocOrUndefined'; +} + + +/*! + * ignore + */ + +function getPositionalPath(self, path, cleanPath) { + getPositionalPathType(self, path, cleanPath); + return self.subpaths[cleanPath]; +} + +/** + * Adds a method call to the queue. + * + * #### Example: + * + * schema.methods.print = function() { console.log(this); }; + * schema.queue('print', []); // Print the doc every one is instantiated + * + * const Model = mongoose.model('Test', schema); + * new Model({ name: 'test' }); // Prints '{"_id": ..., "name": "test" }' + * + * @param {String} name name of the document method to call later + * @param {Array} args arguments to pass to the method + * @api public + */ + +Schema.prototype.queue = function(name, args) { + this.callQueue.push([name, args]); + return this; +}; + +/** + * Defines a pre hook for the model. + * + * #### Example: + * + * const toySchema = new Schema({ name: String, created: Date }); + * + * toySchema.pre('save', function(next) { + * if (!this.created) this.created = new Date; + * next(); + * }); + * + * toySchema.pre('validate', function(next) { + * if (this.name !== 'Woody') this.name = 'Woody'; + * next(); + * }); + * + * // Equivalent to calling `pre()` on `find`, `findOne`, `findOneAndUpdate`. + * toySchema.pre(/^find/, function(next) { + * console.log(this.getFilter()); + * }); + * + * // Equivalent to calling `pre()` on `updateOne`, `findOneAndUpdate`. + * toySchema.pre(['updateOne', 'findOneAndUpdate'], function(next) { + * console.log(this.getFilter()); + * }); + * + * toySchema.pre('deleteOne', function() { + * // Runs when you call `Toy.deleteOne()` + * }); + * + * toySchema.pre('deleteOne', { document: true }, function() { + * // Runs when you call `doc.deleteOne()` + * }); + * + * @param {String|RegExp|String[]} methodName The method name or regular expression to match method name + * @param {Object} [options] + * @param {Boolean} [options.document] If `name` is a hook for both document and query middleware, set to `true` to run on document middleware. For example, set `options.document` to `true` to apply this hook to `Document#deleteOne()` rather than `Query#deleteOne()`. + * @param {Boolean} [options.query] If `name` is a hook for both document and query middleware, set to `true` to run on query middleware. + * @param {Function} callback + * @api public + */ + +Schema.prototype.pre = function(name) { + if (name instanceof RegExp) { + const remainingArgs = Array.prototype.slice.call(arguments, 1); + for (const fn of hookNames) { + if (name.test(fn)) { + this.pre.apply(this, [fn].concat(remainingArgs)); + } + } + return this; + } + if (Array.isArray(name)) { + const remainingArgs = Array.prototype.slice.call(arguments, 1); + for (const el of name) { + this.pre.apply(this, [el].concat(remainingArgs)); + } + return this; + } + this.s.hooks.pre.apply(this.s.hooks, arguments); + return this; +}; + +/** + * Defines a post hook for the document + * + * const schema = new Schema(..); + * schema.post('save', function (doc) { + * console.log('this fired after a document was saved'); + * }); + * + * schema.post('find', function(docs) { + * console.log('this fired after you ran a find query'); + * }); + * + * schema.post(/Many$/, function(res) { + * console.log('this fired after you ran `updateMany()` or `deleteMany()`'); + * }); + * + * const Model = mongoose.model('Model', schema); + * + * const m = new Model(..); + * m.save(function(err) { + * console.log('this fires after the `post` hook'); + * }); + * + * m.find(function(err, docs) { + * console.log('this fires after the post find hook'); + * }); + * + * @param {String|RegExp|String[]} methodName The method name or regular expression to match method name + * @param {Object} [options] + * @param {Boolean} [options.document] If `name` is a hook for both document and query middleware, set to `true` to run on document middleware. + * @param {Boolean} [options.query] If `name` is a hook for both document and query middleware, set to `true` to run on query middleware. + * @param {Function} fn callback + * @see middleware https://mongoosejs.com/docs/middleware.html + * @see kareem https://npmjs.org/package/kareem + * @api public + */ + +Schema.prototype.post = function(name) { + if (name instanceof RegExp) { + const remainingArgs = Array.prototype.slice.call(arguments, 1); + for (const fn of hookNames) { + if (name.test(fn)) { + this.post.apply(this, [fn].concat(remainingArgs)); + } + } + return this; + } + if (Array.isArray(name)) { + const remainingArgs = Array.prototype.slice.call(arguments, 1); + for (const el of name) { + this.post.apply(this, [el].concat(remainingArgs)); + } + return this; + } + this.s.hooks.post.apply(this.s.hooks, arguments); + return this; +}; + +/** + * Registers a plugin for this schema. + * + * #### Example: + * + * const s = new Schema({ name: String }); + * s.plugin(schema => console.log(schema.path('name').path)); + * mongoose.model('Test', s); // Prints 'name' + * + * Or with Options: + * + * const s = new Schema({ name: String }); + * s.plugin((schema, opts) => console.log(opts.text, schema.path('name').path), { text: "Schema Path Name:" }); + * mongoose.model('Test', s); // Prints 'Schema Path Name: name' + * + * @param {Function} plugin The Plugin's callback + * @param {Object} [opts] Options to pass to the plugin + * @param {Boolean} [opts.deduplicate=false] If true, ignore duplicate plugins (same `fn` argument using `===`) + * @see plugins https://mongoosejs.com/docs/plugins.html + * @api public + */ + +Schema.prototype.plugin = function(fn, opts) { + if (typeof fn !== 'function') { + throw new Error('First param to `schema.plugin()` must be a function, ' + + 'got "' + (typeof fn) + '"'); + } + + + if (opts && opts.deduplicate) { + for (const plugin of this.plugins) { + if (plugin.fn === fn) { + return this; + } + } + } + this.plugins.push({ fn: fn, opts: opts }); + + fn(this, opts); + return this; +}; + +/** + * Adds an instance method to documents constructed from Models compiled from this schema. + * + * #### Example: + * + * const schema = kittySchema = new Schema(..); + * + * schema.method('meow', function () { + * console.log('meeeeeoooooooooooow'); + * }) + * + * const Kitty = mongoose.model('Kitty', schema); + * + * const fizz = new Kitty; + * fizz.meow(); // meeeeeooooooooooooow + * + * If a hash of name/fn pairs is passed as the only argument, each name/fn pair will be added as methods. + * + * schema.method({ + * purr: function () {} + * , scratch: function () {} + * }); + * + * // later + * const fizz = new Kitty; + * fizz.purr(); + * fizz.scratch(); + * + * NOTE: `Schema.method()` adds instance methods to the `Schema.methods` object. You can also add instance methods directly to the `Schema.methods` object as seen in the [guide](https://mongoosejs.com/docs/guide.html#methods) + * + * @param {String|Object} name The Method Name for a single function, or a Object of "string-function" pairs. + * @param {Function} [fn] The Function in a single-function definition. + * @api public + */ + +Schema.prototype.method = function(name, fn, options) { + if (typeof name !== 'string') { + for (const i in name) { + this.methods[i] = name[i]; + this.methodOptions[i] = clone(options); + } + } else { + this.methods[name] = fn; + this.methodOptions[name] = clone(options); + } + return this; +}; + +/** + * Adds static "class" methods to Models compiled from this schema. + * + * #### Example: + * + * const schema = new Schema(..); + * // Equivalent to `schema.statics.findByName = function(name) {}`; + * schema.static('findByName', function(name) { + * return this.find({ name: name }); + * }); + * + * const Drink = mongoose.model('Drink', schema); + * await Drink.findByName('LaCroix'); + * + * If a hash of name/fn pairs is passed as the only argument, each name/fn pair will be added as methods. + * + * schema.static({ + * findByName: function () {..} + * , findByCost: function () {..} + * }); + * + * const Drink = mongoose.model('Drink', schema); + * await Drink.findByName('LaCroix'); + * await Drink.findByCost(3); + * + * If a hash of name/fn pairs is passed as the only argument, each name/fn pair will be added as statics. + * + * @param {String|Object} name The Method Name for a single function, or a Object of "string-function" pairs. + * @param {Function} [fn] The Function in a single-function definition. + * @api public + * @see Statics https://mongoosejs.com/docs/guide.html#statics + */ + +Schema.prototype.static = function(name, fn) { + if (typeof name !== 'string') { + for (const i in name) { + this.statics[i] = name[i]; + } + } else { + this.statics[name] = fn; + } + return this; +}; + +/** + * Defines an index (most likely compound) for this schema. + * + * #### Example: + * + * schema.index({ first: 1, last: -1 }) + * + * @param {Object} fields The Fields to index, with the order, available values: `1 | -1 | '2d' | '2dsphere' | 'geoHaystack' | 'hashed' | 'text'` + * @param {Object} [options] Options to pass to [MongoDB driver's `createIndex()` function](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#createIndex) + * @param {String | number} [options.expires=null] Mongoose-specific syntactic sugar, uses [ms](https://www.npmjs.com/package/ms) to convert `expires` option into seconds for the `expireAfterSeconds` in the above link. + * @param {String} [options.language_override=null] Tells mongodb to use the specified field instead of `language` for parsing text indexes. + * @api public + */ + +Schema.prototype.index = function(fields, options) { + fields || (fields = {}); + options || (options = {}); + + if (options.expires) { + utils.expires(options); + } + for (const key in fields) { + if (this.aliases[key]) { + fields = utils.renameObjKey(fields, key, this.aliases[key]); + } + } + for (const field of Object.keys(fields)) { + if (fields[field] === 'ascending' || fields[field] === 'asc') { + fields[field] = 1; + } else if (fields[field] === 'descending' || fields[field] === 'desc') { + fields[field] = -1; + } + } + + this._indexes.push([fields, options]); + return this; +}; + +/** + * Sets a schema option. + * + * #### Example: + * + * schema.set('strict'); // 'true' by default + * schema.set('strict', false); // Sets 'strict' to false + * schema.set('strict'); // 'false' + * + * @param {String} key The name of the option to set the value to + * @param {Object} [value] The value to set the option to, if not passed, the option will be reset to default + * @param {Array} [tags] tags to add to read preference if key === 'read' + * @see Schema https://mongoosejs.com/docs/api/schema.html#Schema() + * @api public + */ + +Schema.prototype.set = function(key, value, tags) { + if (arguments.length === 1) { + return this.options[key]; + } + + switch (key) { + case 'read': + if (typeof value === 'string') { + this.options[key] = { mode: handleReadPreferenceAliases(value), tags }; + } else if (Array.isArray(value) && typeof value[0] === 'string') { + this.options[key] = { + mode: handleReadPreferenceAliases(value[0]), + tags: value[1] + }; + } else { + this.options[key] = value; + } + this._userProvidedOptions[key] = this.options[key]; + break; + case 'timestamps': + this.setupTimestamp(value); + this.options[key] = value; + this._userProvidedOptions[key] = this.options[key]; + break; + case '_id': + this.options[key] = value; + this._userProvidedOptions[key] = this.options[key]; + + if (value && !this.paths['_id']) { + addAutoId(this); + } else if (!value && this.paths['_id'] != null && this.paths['_id'].auto) { + this.remove('_id'); + } + break; + default: + this.options[key] = value; + this._userProvidedOptions[key] = this.options[key]; + break; + } + + // Propagate `strict` and `strictQuery` changes down to implicitly created schemas + if (key === 'strict') { + _propagateOptionsToImplicitlyCreatedSchemas(this, { strict: value }); + } + if (key === 'strictQuery') { + _propagateOptionsToImplicitlyCreatedSchemas(this, { strictQuery: value }); + } + if (key === 'toObject') { + value = { ...value }; + // Avoid propagating transform to implicitly created schemas re: gh-3279 + delete value.transform; + _propagateOptionsToImplicitlyCreatedSchemas(this, { toObject: value }); + } + if (key === 'toJSON') { + value = { ...value }; + // Avoid propagating transform to implicitly created schemas re: gh-3279 + delete value.transform; + _propagateOptionsToImplicitlyCreatedSchemas(this, { toJSON: value }); + } + + return this; +}; + +/*! + * Recursively set options on implicitly created schemas + */ + +function _propagateOptionsToImplicitlyCreatedSchemas(baseSchema, options) { + for (const { schema } of baseSchema.childSchemas) { + if (!schema.$implicitlyCreated) { + continue; + } + Object.assign(schema.options, options); + _propagateOptionsToImplicitlyCreatedSchemas(schema, options); + } +} + +/** + * Gets a schema option. + * + * #### Example: + * + * schema.get('strict'); // true + * schema.set('strict', false); + * schema.get('strict'); // false + * + * @param {String} key The name of the Option to get the current value for + * @api public + * @return {Any} the option's value + */ + +Schema.prototype.get = function(key) { + return this.options[key]; +}; + +const indexTypes = '2d 2dsphere hashed text'.split(' '); + +/** + * The allowed index types + * + * @property {String[]} indexTypes + * @memberOf Schema + * @static + * @api public + */ + +Object.defineProperty(Schema, 'indexTypes', { + get: function() { + return indexTypes; + }, + set: function() { + throw new Error('Cannot overwrite Schema.indexTypes'); + } +}); + +/** + * Returns a list of indexes that this schema declares, via `schema.index()` or by `index: true` in a path's options. + * Indexes are expressed as an array `[spec, options]`. + * + * #### Example: + * + * const userSchema = new Schema({ + * email: { type: String, required: true, unique: true }, + * registeredAt: { type: Date, index: true } + * }); + * + * // [ [ { email: 1 }, { unique: true, background: true } ], + * // [ { registeredAt: 1 }, { background: true } ] ] + * userSchema.indexes(); + * + * [Plugins](https://mongoosejs.com/docs/plugins.html) can use the return value of this function to modify a schema's indexes. + * For example, the below plugin makes every index unique by default. + * + * function myPlugin(schema) { + * for (const index of schema.indexes()) { + * if (index[1].unique === undefined) { + * index[1].unique = true; + * } + * } + * } + * + * @api public + * @return {Array} list of indexes defined in the schema + */ + +Schema.prototype.indexes = function() { + return getIndexes(this); +}; + +/** + * Creates a virtual type with the given name. + * + * @param {String} name The name of the Virtual + * @param {Object} [options] + * @param {String|Model} [options.ref] model name or model instance. Marks this as a [populate virtual](https://mongoosejs.com/docs/populate.html#populate-virtuals). + * @param {String|Function} [options.localField] Required for populate virtuals. See [populate virtual docs](https://mongoosejs.com/docs/populate.html#populate-virtuals) for more information. + * @param {String|Function} [options.foreignField] Required for populate virtuals. See [populate virtual docs](https://mongoosejs.com/docs/populate.html#populate-virtuals) for more information. + * @param {Boolean|Function} [options.justOne=false] Only works with populate virtuals. If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), will be a single doc or `null`. Otherwise, the populate virtual will be an array. + * @param {Boolean} [options.count=false] Only works with populate virtuals. If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), this populate virtual will contain the number of documents rather than the documents themselves when you `populate()`. + * @param {Function|null} [options.get=null] Adds a [getter](https://mongoosejs.com/docs/tutorials/getters-setters.html) to this virtual to transform the populated doc. + * @param {Object|Function} [options.match=null] Apply a default [`match` option to populate](https://mongoosejs.com/docs/populate.html#match), adding an additional filter to the populate query. + * @return {VirtualType} + */ + +Schema.prototype.virtual = function(name, options) { + if (name instanceof VirtualType || getConstructorName(name) === 'VirtualType') { + return this.virtual(name.path, name.options); + } + options = new VirtualOptions(options); + + if (utils.hasUserDefinedProperty(options, ['ref', 'refPath'])) { + if (options.localField == null) { + throw new Error('Reference virtuals require `localField` option'); + } + + if (options.foreignField == null) { + throw new Error('Reference virtuals require `foreignField` option'); + } + + const virtual = this.virtual(name); + virtual.options = options; + + this.pre('init', function virtualPreInit(obj, opts) { + if (mpath.has(name, obj)) { + const _v = mpath.get(name, obj); + if (!this.$$populatedVirtuals) { + this.$$populatedVirtuals = {}; + } + + if (options.justOne || options.count) { + this.$$populatedVirtuals[name] = Array.isArray(_v) ? + _v[0] : + _v; + } else { + this.$$populatedVirtuals[name] = Array.isArray(_v) ? + _v : + _v == null ? [] : [_v]; + } + + if (opts?.hydratedPopulatedDocs && !options.count) { + const modelNames = virtual._getModelNamesForPopulate(this); + const populatedVal = this.$$populatedVirtuals[name]; + if (!Array.isArray(populatedVal) && !populatedVal.$__ && modelNames?.length === 1) { + const PopulateModel = this.db.model(modelNames[0]); + this.$$populatedVirtuals[name] = PopulateModel.hydrate(populatedVal); + } else if (Array.isArray(populatedVal) && modelNames?.length === 1) { + const PopulateModel = this.db.model(modelNames[0]); + for (let i = 0; i < populatedVal.length; ++i) { + if (!populatedVal[i].$__) { + populatedVal[i] = PopulateModel.hydrate(populatedVal[i]); + } + } + } + } + + mpath.unset(name, obj); + } + }); + + virtual. + set(function(v) { + if (!this.$$populatedVirtuals) { + this.$$populatedVirtuals = {}; + } + + return setPopulatedVirtualValue( + this.$$populatedVirtuals, + name, + v, + options + ); + }); + + if (typeof options.get === 'function') { + virtual.get(options.get); + } + + // Workaround for gh-8198: if virtual is under document array, make a fake + // virtual. See gh-8210, gh-13189 + const parts = name.split('.'); + let cur = parts[0]; + for (let i = 0; i < parts.length - 1; ++i) { + if (this.paths[cur] == null) { + continue; + } + + if (this.paths[cur].$isMongooseDocumentArray || this.paths[cur].$isSingleNested) { + const remnant = parts.slice(i + 1).join('.'); + this.paths[cur].schema.virtual(remnant, options); + break; + } + + cur += '.' + parts[i + 1]; + } + + return virtual; + } + + const virtuals = this.virtuals; + const parts = name.split('.'); + + if (this.pathType(name) === 'real') { + throw new Error('Virtual path "' + name + '"' + + ' conflicts with a real path in the schema'); + } + + virtuals[name] = parts.reduce(function(mem, part, i) { + mem[part] || (mem[part] = (i === parts.length - 1) + ? new VirtualType(options, name) + : {}); + return mem[part]; + }, this.tree); + + return virtuals[name]; +}; + +/** + * Returns the virtual type with the given `name`. + * + * @param {String} name The name of the Virtual to get + * @return {VirtualType|null} + */ + +Schema.prototype.virtualpath = function(name) { + return this.virtuals.hasOwnProperty(name) ? this.virtuals[name] : null; +}; + +/** + * Removes the given `path` (or [`paths`]). + * + * #### Example: + * + * const schema = new Schema({ name: String, age: Number }); + * schema.remove('name'); + * schema.path('name'); // Undefined + * schema.path('age'); // SchemaNumber { ... } + * + * Or as a Array: + * + * schema.remove(['name', 'age']); + * schema.path('name'); // Undefined + * schema.path('age'); // Undefined + * + * @param {String|Array} path The Path(s) to remove + * @return {Schema} the Schema instance + * @api public + */ +Schema.prototype.remove = function(path) { + if (typeof path === 'string') { + path = [path]; + } + if (Array.isArray(path)) { + path.forEach(function(name) { + if (this.path(name) == null && !this.nested[name]) { + return; + } + if (this.nested[name]) { + const allKeys = Object.keys(this.paths). + concat(Object.keys(this.nested)); + for (const path of allKeys) { + if (path.startsWith(name + '.')) { + delete this.paths[path]; + delete this.nested[path]; + _deletePath(this, path); + } + } + + delete this.nested[name]; + _deletePath(this, name); + return; + } + + delete this.paths[name]; + _deletePath(this, name); + }, this); + } + return this; +}; + +/*! + * ignore + */ + +function _deletePath(schema, name) { + const pieces = name.split('.'); + const last = pieces.pop(); + + let branch = schema.tree; + + for (const piece of pieces) { + branch = branch[piece]; + } + + delete branch[last]; +} + +/** + * Removes the given virtual or virtuals from the schema. + * + * @param {String|Array} path The virutal path(s) to remove. + * @returns {Schema} the Schema instance, or a mongoose error if the virtual does not exist. + * @api public + */ + +Schema.prototype.removeVirtual = function(path) { + if (typeof path === 'string') { + path = [path]; + } + if (Array.isArray(path)) { + for (const virtual of path) { + if (this.virtuals[virtual] == null) { + throw new MongooseError(`Attempting to remove virtual "${virtual}" that does not exist.`); + } + } + + for (const virtual of path) { + delete this.paths[virtual]; + delete this.virtuals[virtual]; + if (virtual.indexOf('.') !== -1) { + mpath.unset(virtual, this.tree); + } else { + delete this.tree[virtual]; + } + } + } + return this; +}; + +/** + * Loads an ES6 class into a schema. Maps [setters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set) + [getters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get), [static methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/static), + * and [instance methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Class_body_and_method_definitions) + * to schema [virtuals](https://mongoosejs.com/docs/guide.html#virtuals), + * [statics](https://mongoosejs.com/docs/guide.html#statics), and + * [methods](https://mongoosejs.com/docs/guide.html#methods). + * + * #### Example: + * + * ```javascript + * const md5 = require('md5'); + * const userSchema = new Schema({ email: String }); + * class UserClass { + * // `gravatarImage` becomes a virtual + * get gravatarImage() { + * const hash = md5(this.email.toLowerCase()); + * return `https://www.gravatar.com/avatar/${hash}`; + * } + * + * // `getProfileUrl()` becomes a document method + * getProfileUrl() { + * return `https://mysite.com/${this.email}`; + * } + * + * // `findByEmail()` becomes a static + * static findByEmail(email) { + * return this.findOne({ email }); + * } + * } + * + * // `schema` will now have a `gravatarImage` virtual, a `getProfileUrl()` method, + * // and a `findByEmail()` static + * userSchema.loadClass(UserClass); + * ``` + * + * @param {Function} model The Class to load + * @param {Boolean} [virtualsOnly] if truthy, only pulls virtuals from the class, not methods or statics + */ +Schema.prototype.loadClass = function(model, virtualsOnly) { + // Stop copying when hit certain base classes + if (model === Object.prototype || + model === Function.prototype || + model.prototype.hasOwnProperty('$isMongooseModelPrototype') || + model.prototype.hasOwnProperty('$isMongooseDocumentPrototype')) { + return this; + } + + this.loadClass(Object.getPrototypeOf(model), virtualsOnly); + + // Add static methods + if (!virtualsOnly) { + Object.getOwnPropertyNames(model).forEach(function(name) { + if (name.match(/^(length|name|prototype|constructor|__proto__)$/)) { + return; + } + const prop = Object.getOwnPropertyDescriptor(model, name); + if (prop.hasOwnProperty('value')) { + this.static(name, prop.value); + } + }, this); + } + + // Add methods and virtuals + Object.getOwnPropertyNames(model.prototype).forEach(function(name) { + if (name.match(/^(constructor)$/)) { + return; + } + const method = Object.getOwnPropertyDescriptor(model.prototype, name); + if (!virtualsOnly) { + if (typeof method.value === 'function') { + this.method(name, method.value); + } + } + if (typeof method.get === 'function') { + if (this.virtuals[name]) { + this.virtuals[name].getters = []; + } + this.virtual(name).get(method.get); + } + if (typeof method.set === 'function') { + if (this.virtuals[name]) { + this.virtuals[name].setters = []; + } + this.virtual(name).set(method.set); + } + }, this); + + return this; +}; + +/*! + * ignore + */ + +Schema.prototype._getSchema = function(path) { + const _this = this; + const pathschema = _this.path(path); + const resultPath = []; + + if (pathschema) { + pathschema.$fullPath = path; + return pathschema; + } + + function search(parts, schema) { + let p = parts.length + 1; + let foundschema; + let trypath; + + while (p--) { + trypath = parts.slice(0, p).join('.'); + foundschema = schema.path(trypath); + if (foundschema) { + resultPath.push(trypath); + + if (foundschema.caster) { + // array of Mixed? + if (foundschema.caster instanceof MongooseTypes.Mixed) { + foundschema.caster.$fullPath = resultPath.join('.'); + return foundschema.caster; + } + + // Now that we found the array, we need to check if there + // are remaining document paths to look up for casting. + // Also we need to handle array.$.path since schema.path + // doesn't work for that. + // If there is no foundschema.schema we are dealing with + // a path like array.$ + if (p !== parts.length) { + if (p + 1 === parts.length && foundschema.$embeddedSchemaType && (parts[p] === '$' || isArrayFilter(parts[p]))) { + return foundschema.$embeddedSchemaType; + } + + if (foundschema.schema) { + let ret; + if (parts[p] === '$' || isArrayFilter(parts[p])) { + if (p + 1 === parts.length) { + // comments.$ + return foundschema.$embeddedSchemaType; + } + // comments.$.comments.$.title + ret = search(parts.slice(p + 1), foundschema.schema); + if (ret) { + ret.$parentSchemaDocArray = ret.$parentSchemaDocArray || + (foundschema.schema.$isSingleNested ? null : foundschema); + } + return ret; + } + // this is the last path of the selector + ret = search(parts.slice(p), foundschema.schema); + if (ret) { + ret.$parentSchemaDocArray = ret.$parentSchemaDocArray || + (foundschema.schema.$isSingleNested ? null : foundschema); + } + return ret; + } + } + } else if (foundschema.$isSchemaMap) { + if (p >= parts.length) { + return foundschema; + } + // Any path in the map will be an instance of the map's embedded schematype + if (p + 1 >= parts.length) { + return foundschema.$__schemaType; + } + + if (foundschema.$__schemaType instanceof MongooseTypes.Mixed) { + return foundschema.$__schemaType; + } + if (foundschema.$__schemaType.schema != null) { + // Map of docs + const ret = search(parts.slice(p + 1), foundschema.$__schemaType.schema); + return ret; + } + } + + foundschema.$fullPath = resultPath.join('.'); + + return foundschema; + } + } + } + + // look for arrays + const parts = path.split('.'); + for (let i = 0; i < parts.length; ++i) { + if (parts[i] === '$' || isArrayFilter(parts[i])) { + // Re: gh-5628, because `schema.path()` doesn't take $ into account. + parts[i] = '0'; + } + if (numberRE.test(parts[i])) { + parts[i] = '$'; + } + } + return search(parts, _this); +}; + +/*! + * ignore + */ + +Schema.prototype._getPathType = function(path) { + const _this = this; + const pathschema = _this.path(path); + + if (pathschema) { + return 'real'; + } + + function search(parts, schema) { + let p = parts.length + 1, + foundschema, + trypath; + + while (p--) { + trypath = parts.slice(0, p).join('.'); + foundschema = schema.path(trypath); + if (foundschema) { + if (foundschema.caster) { + // array of Mixed? + if (foundschema.caster instanceof MongooseTypes.Mixed) { + return { schema: foundschema, pathType: 'mixed' }; + } + + // Now that we found the array, we need to check if there + // are remaining document paths to look up for casting. + // Also we need to handle array.$.path since schema.path + // doesn't work for that. + // If there is no foundschema.schema we are dealing with + // a path like array.$ + if (p !== parts.length && foundschema.schema) { + if (parts[p] === '$' || isArrayFilter(parts[p])) { + if (p === parts.length - 1) { + return { schema: foundschema, pathType: 'nested' }; + } + // comments.$.comments.$.title + return search(parts.slice(p + 1), foundschema.schema); + } + // this is the last path of the selector + return search(parts.slice(p), foundschema.schema); + } + return { + schema: foundschema, + pathType: foundschema.$isSingleNested ? 'nested' : 'array' + }; + } + return { schema: foundschema, pathType: 'real' }; + } else if (p === parts.length && schema.nested[trypath]) { + return { schema: schema, pathType: 'nested' }; + } + } + return { schema: foundschema || schema, pathType: 'undefined' }; + } + + // look for arrays + return search(path.split('.'), _this); +}; + +/*! + * ignore + */ + +function isArrayFilter(piece) { + return piece.startsWith('$[') && piece.endsWith(']'); +} + +/** + * Called by `compile()` _right before_ compiling. Good for making any changes to + * the schema that should respect options set by plugins, like `id` + * @method _preCompile + * @memberOf Schema + * @instance + * @api private + */ + +Schema.prototype._preCompile = function _preCompile() { + this.plugin(idGetter, { deduplicate: true }); +}; + +/*! + * Module exports. + */ + +module.exports = exports = Schema; + +// require down here because of reference issues + +/** + * The various built-in Mongoose Schema Types. + * + * #### Example: + * + * const mongoose = require('mongoose'); + * const ObjectId = mongoose.Schema.Types.ObjectId; + * + * #### Types: + * + * - [String](https://mongoosejs.com/docs/schematypes.html#strings) + * - [Number](https://mongoosejs.com/docs/schematypes.html#numbers) + * - [Boolean](https://mongoosejs.com/docs/schematypes.html#booleans) | Bool + * - [Array](https://mongoosejs.com/docs/schematypes.html#arrays) + * - [Buffer](https://mongoosejs.com/docs/schematypes.html#buffers) + * - [Date](https://mongoosejs.com/docs/schematypes.html#dates) + * - [ObjectId](https://mongoosejs.com/docs/schematypes.html#objectids) | Oid + * - [Mixed](https://mongoosejs.com/docs/schematypes.html#mixed) + * - [UUID](https://mongoosejs.com/docs/schematypes.html#uuid) + * - [BigInt](https://mongoosejs.com/docs/schematypes.html#bigint) + * + * Using this exposed access to the `Mixed` SchemaType, we can use them in our schema. + * + * const Mixed = mongoose.Schema.Types.Mixed; + * new mongoose.Schema({ _user: Mixed }) + * + * @api public + */ + +Schema.Types = MongooseTypes = require('./schema/index'); + +/*! + * ignore + */ + +exports.ObjectId = MongooseTypes.ObjectId; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/array.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/array.js new file mode 100644 index 000000000..67fe713a9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/array.js @@ -0,0 +1,669 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const $exists = require('./operators/exists'); +const $type = require('./operators/type'); +const MongooseError = require('../error/mongooseError'); +const SchemaArrayOptions = require('../options/schemaArrayOptions'); +const SchemaType = require('../schemaType'); +const CastError = SchemaType.CastError; +const Mixed = require('./mixed'); +const arrayDepth = require('../helpers/arrayDepth'); +const cast = require('../cast'); +const clone = require('../helpers/clone'); +const isOperator = require('../helpers/query/isOperator'); +const util = require('util'); +const utils = require('../utils'); +const castToNumber = require('./operators/helpers').castToNumber; +const geospatial = require('./operators/geospatial'); +const getDiscriminatorByValue = require('../helpers/discriminator/getDiscriminatorByValue'); + +let MongooseArray; +let EmbeddedDoc; + +const isNestedArraySymbol = Symbol('mongoose#isNestedArray'); +const emptyOpts = Object.freeze({}); + +/** + * Array SchemaType constructor + * + * @param {String} key + * @param {SchemaType} cast + * @param {Object} options + * @param {Object} schemaOptions + * @inherits SchemaType + * @api public + */ + +function SchemaArray(key, cast, options, schemaOptions) { + // lazy load + EmbeddedDoc || (EmbeddedDoc = require('../types').Embedded); + + let typeKey = 'type'; + if (schemaOptions && schemaOptions.typeKey) { + typeKey = schemaOptions.typeKey; + } + this.schemaOptions = schemaOptions; + + if (cast) { + let castOptions = {}; + + if (utils.isPOJO(cast)) { + if (cast[typeKey]) { + // support { type: Woot } + castOptions = clone(cast); // do not alter user arguments + delete castOptions[typeKey]; + cast = cast[typeKey]; + } else { + cast = Mixed; + } + } + + if (options != null && options.ref != null && castOptions.ref == null) { + castOptions.ref = options.ref; + } + + if (cast === Object) { + cast = Mixed; + } + + // support { type: 'String' } + const name = typeof cast === 'string' + ? cast + : utils.getFunctionName(cast); + + const Types = require('./index.js'); + const caster = Types.hasOwnProperty(name) ? Types[name] : cast; + + this.casterConstructor = caster; + + if (this.casterConstructor instanceof SchemaArray) { + this.casterConstructor[isNestedArraySymbol] = true; + } + + if (typeof caster === 'function' && + !caster.$isArraySubdocument && + !caster.$isSchemaMap) { + const path = this.caster instanceof EmbeddedDoc ? null : key; + this.caster = new caster(path, castOptions); + } else { + this.caster = caster; + if (!(this.caster instanceof EmbeddedDoc)) { + this.caster.path = key; + } + } + + this.$embeddedSchemaType = this.caster; + } + + this.$isMongooseArray = true; + + SchemaType.call(this, key, options, 'Array'); + + let defaultArr; + let fn; + + if (this.defaultValue != null) { + defaultArr = this.defaultValue; + fn = typeof defaultArr === 'function'; + } + + if (!('defaultValue' in this) || this.defaultValue !== void 0) { + const defaultFn = function() { + // Leave it up to `cast()` to convert the array + return fn + ? defaultArr.call(this) + : defaultArr != null + ? [].concat(defaultArr) + : []; + }; + defaultFn.$runBeforeSetters = !fn; + this.default(defaultFn); + } +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaArray.schemaName = 'Array'; + + +/** + * Options for all arrays. + * + * - `castNonArrays`: `true` by default. If `false`, Mongoose will throw a CastError when a value isn't an array. If `true`, Mongoose will wrap the provided value in an array before casting. + * + * @static + * @api public + */ + +SchemaArray.options = { castNonArrays: true }; + +/*! + * ignore + */ + +SchemaArray.defaultOptions = {}; + +/** + * Sets a default option for all Array instances. + * + * #### Example: + * + * // Make all Array instances have `required` of true by default. + * mongoose.Schema.Array.set('required', true); + * + * const User = mongoose.model('User', new Schema({ test: Array })); + * new User({ }).validateSync().errors.test.message; // Path `test` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @api public + */ +SchemaArray.set = SchemaType.set; + +SchemaArray.setters = []; + +/** + * Attaches a getter for all Array instances + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaArray.get = SchemaType.get; + +/*! + * Inherits from SchemaType. + */ +SchemaArray.prototype = Object.create(SchemaType.prototype); +SchemaArray.prototype.constructor = SchemaArray; +SchemaArray.prototype.OptionsConstructor = SchemaArrayOptions; + +/*! + * ignore + */ + +SchemaArray._checkRequired = SchemaType.prototype.checkRequired; + +/** + * Override the function the required validator uses to check whether an array + * passes the `required` check. + * + * #### Example: + * + * // Require non-empty array to pass `required` check + * mongoose.Schema.Types.Array.checkRequired(v => Array.isArray(v) && v.length); + * + * const M = mongoose.model({ arr: { type: Array, required: true } }); + * new M({ arr: [] }).validateSync(); // `null`, validation fails! + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @api public + */ + +SchemaArray.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies the `required` validator. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaArray.prototype.checkRequired = function checkRequired(value, doc) { + if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) { + return !!value; + } + + // `require('util').inherits()` does **not** copy static properties, and + // plugins like mongoose-float use `inherits()` for pre-ES6. + const _checkRequired = typeof this.constructor.checkRequired === 'function' ? + this.constructor.checkRequired() : + SchemaArray.checkRequired(); + + return _checkRequired(value); +}; + +/** + * Adds an enum validator if this is an array of strings or numbers. Equivalent to + * `SchemaString.prototype.enum()` or `SchemaNumber.prototype.enum()` + * + * @param {...String|Object} [args] enumeration values + * @return {SchemaArray} this + */ + +SchemaArray.prototype.enum = function() { + let arr = this; + while (true) { + const instance = arr && + arr.caster && + arr.caster.instance; + if (instance === 'Array') { + arr = arr.caster; + continue; + } + if (instance !== 'String' && instance !== 'Number') { + throw new Error('`enum` can only be set on an array of strings or numbers ' + + ', not ' + instance); + } + break; + } + + let enumArray = arguments; + if (!Array.isArray(arguments) && utils.isObject(arguments)) { + enumArray = utils.object.vals(enumArray); + } + + arr.caster.enum.apply(arr.caster, enumArray); + return this; +}; + +/** + * Overrides the getters application for the population special-case + * + * @param {Object} value + * @param {Object} scope + * @api private + */ + +SchemaArray.prototype.applyGetters = function(value, scope) { + if (scope != null && scope.$__ != null && scope.$populated(this.path)) { + // means the object id was populated + return value; + } + + const ret = SchemaType.prototype.applyGetters.call(this, value, scope); + return ret; +}; + +SchemaArray.prototype._applySetters = function(value, scope, init, priorVal) { + if (this.casterConstructor.$isMongooseArray && + SchemaArray.options.castNonArrays && + !this[isNestedArraySymbol]) { + // Check nesting levels and wrap in array if necessary + let depth = 0; + let arr = this; + while (arr != null && + arr.$isMongooseArray && + !arr.$isMongooseDocumentArray) { + ++depth; + arr = arr.casterConstructor; + } + + // No need to wrap empty arrays + if (value != null && value.length !== 0) { + const valueDepth = arrayDepth(value); + if (valueDepth.min === valueDepth.max && valueDepth.max < depth && valueDepth.containsNonArrayItem) { + for (let i = valueDepth.max; i < depth; ++i) { + value = [value]; + } + } + } + } + + return SchemaType.prototype._applySetters.call(this, value, scope, init, priorVal); +}; + +/** + * Casts values for set(). + * + * @param {Object} value + * @param {Document} doc document that triggers the casting + * @param {Boolean} init whether this is an initialization cast + * @api private + */ + +SchemaArray.prototype.cast = function(value, doc, init, prev, options) { + // lazy load + MongooseArray || (MongooseArray = require('../types').Array); + + let i; + let l; + + if (Array.isArray(value)) { + const len = value.length; + if (!len && doc) { + const indexes = doc.schema.indexedPaths(); + + const arrayPath = this.path; + for (i = 0, l = indexes.length; i < l; ++i) { + const pathIndex = indexes[i][0][arrayPath]; + if (pathIndex === '2dsphere' || pathIndex === '2d') { + return; + } + } + + // Special case: if this index is on the parent of what looks like + // GeoJSON, skip setting the default to empty array re: #1668, #3233 + const arrayGeojsonPath = this.path.endsWith('.coordinates') ? + this.path.substring(0, this.path.lastIndexOf('.')) : null; + if (arrayGeojsonPath != null) { + for (i = 0, l = indexes.length; i < l; ++i) { + const pathIndex = indexes[i][0][arrayGeojsonPath]; + if (pathIndex === '2dsphere') { + return; + } + } + } + } + + options = options || emptyOpts; + + let rawValue = utils.isMongooseArray(value) ? value.__array : value; + let path = options.path || this.path; + if (options.arrayPathIndex != null) { + path += '.' + options.arrayPathIndex; + } + value = MongooseArray(rawValue, path, doc, this); + rawValue = value.__array; + + if (init && doc != null && doc.$__ != null && doc.$populated(this.path)) { + return value; + } + + const caster = this.caster; + const isMongooseArray = caster.$isMongooseArray; + if (caster && this.casterConstructor !== Mixed) { + try { + const len = rawValue.length; + for (i = 0; i < len; i++) { + const opts = {}; + // Perf: creating `arrayPath` is expensive for large arrays. + // We only need `arrayPath` if this is a nested array, so + // skip if possible. + if (isMongooseArray) { + if (options.arrayPath != null) { + opts.arrayPathIndex = i; + } else if (caster._arrayParentPath != null) { + opts.arrayPathIndex = i; + } + } + rawValue[i] = caster.applySetters(rawValue[i], doc, init, void 0, opts); + } + } catch (e) { + // rethrow + throw new CastError('[' + e.kind + ']', util.inspect(value), this.path + '.' + i, e, this); + } + } + + return value; + } + + const castNonArraysOption = this.options.castNonArrays != null ? this.options.castNonArrays : SchemaArray.options.castNonArrays; + if (init || castNonArraysOption) { + // gh-2442: if we're loading this from the db and its not an array, mark + // the whole array as modified. + if (!!doc && !!init) { + doc.markModified(this.path); + } + return this.cast([value], doc, init); + } + + throw new CastError('Array', util.inspect(value), this.path, null, this); +}; + +/*! + * ignore + */ + +SchemaArray.prototype._castForPopulate = function _castForPopulate(value, doc) { + // lazy load + MongooseArray || (MongooseArray = require('../types').Array); + + if (Array.isArray(value)) { + let i; + const rawValue = value.__array ? value.__array : value; + const len = rawValue.length; + + const caster = this.caster; + if (caster && this.casterConstructor !== Mixed) { + try { + for (i = 0; i < len; i++) { + const opts = {}; + // Perf: creating `arrayPath` is expensive for large arrays. + // We only need `arrayPath` if this is a nested array, so + // skip if possible. + if (caster.$isMongooseArray && caster._arrayParentPath != null) { + opts.arrayPathIndex = i; + } + + rawValue[i] = caster.cast(rawValue[i], doc, false, void 0, opts); + } + } catch (e) { + // rethrow + throw new CastError('[' + e.kind + ']', util.inspect(value), this.path + '.' + i, e, this); + } + } + + return value; + } + + throw new CastError('Array', util.inspect(value), this.path, null, this); +}; + +SchemaArray.prototype.$toObject = SchemaArray.prototype.toObject; + +/*! + * ignore + */ + +SchemaArray.prototype.discriminator = function(...args) { + let arr = this; + while (arr.$isMongooseArray && !arr.$isMongooseDocumentArray) { + arr = arr.casterConstructor; + if (arr == null || typeof arr === 'function') { + throw new MongooseError('You can only add an embedded discriminator on ' + + 'a document array, ' + this.path + ' is a plain array'); + } + } + return arr.discriminator(...args); +}; + +/*! + * ignore + */ + +SchemaArray.prototype.clone = function() { + const options = Object.assign({}, this.options); + const schematype = new this.constructor(this.path, this.caster, options, this.schemaOptions); + schematype.validators = this.validators.slice(); + if (this.requiredValidator !== undefined) { + schematype.requiredValidator = this.requiredValidator; + } + return schematype; +}; + +SchemaArray.prototype._castForQuery = function(val, context) { + let Constructor = this.casterConstructor; + + if (val && + Constructor.discriminators && + Constructor.schema && + Constructor.schema.options && + Constructor.schema.options.discriminatorKey) { + if (typeof val[Constructor.schema.options.discriminatorKey] === 'string' && + Constructor.discriminators[val[Constructor.schema.options.discriminatorKey]]) { + Constructor = Constructor.discriminators[val[Constructor.schema.options.discriminatorKey]]; + } else { + const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, val[Constructor.schema.options.discriminatorKey]); + if (constructorByValue) { + Constructor = constructorByValue; + } + } + } + + const proto = this.casterConstructor.prototype; + const protoCastForQuery = proto && proto.castForQuery; + const protoCast = proto && proto.cast; + const constructorCastForQuery = Constructor.castForQuery; + const caster = this.caster; + + if (Array.isArray(val)) { + this.setters.reverse().forEach(setter => { + val = setter.call(this, val, this); + }); + val = val.map(function(v) { + if (utils.isObject(v) && v.$elemMatch) { + return v; + } + if (protoCastForQuery) { + v = protoCastForQuery.call(caster, null, v, context); + return v; + } else if (protoCast) { + v = protoCast.call(caster, v); + return v; + } else if (constructorCastForQuery) { + v = constructorCastForQuery.call(caster, null, v, context); + return v; + } + if (v != null) { + v = new Constructor(v); + return v; + } + return v; + }); + } else if (protoCastForQuery) { + val = protoCastForQuery.call(caster, null, val, context); + } else if (protoCast) { + val = protoCast.call(caster, val); + } else if (constructorCastForQuery) { + val = constructorCastForQuery.call(caster, null, val, context); + } else if (val != null) { + val = new Constructor(val); + } + + return val; +}; + +/** + * Casts values for queries. + * + * @param {String} $conditional + * @param {any} [value] + * @api private + */ + +SchemaArray.prototype.castForQuery = function($conditional, val, context) { + let handler; + + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + + if (!handler) { + throw new Error('Can\'t use ' + $conditional + ' with Array.'); + } + + return handler.call(this, val, context); + } else { + return this._castForQuery(val, context); + } +}; + +function cast$all(val, context) { + if (!Array.isArray(val)) { + val = [val]; + } + + val = val.map((v) => { + if (!utils.isObject(v)) { + return v; + } + if (v.$elemMatch != null) { + return { $elemMatch: cast(this.casterConstructor.schema, v.$elemMatch, null, this && this.$$context) }; + } + + const o = {}; + o[this.path] = v; + return cast(this.casterConstructor.schema, o, null, this && this.$$context)[this.path]; + }, this); + + return this.castForQuery(null, val, context); +} + +function cast$elemMatch(val, context) { + const keys = Object.keys(val); + const numKeys = keys.length; + for (let i = 0; i < numKeys; ++i) { + const key = keys[i]; + const value = val[key]; + if (isOperator(key) && value != null) { + val[key] = this.castForQuery(key, value, context); + } + } + + return val; +} + +const handle = SchemaArray.prototype.$conditionalHandlers = {}; + +handle.$all = cast$all; +handle.$options = String; +handle.$elemMatch = cast$elemMatch; +handle.$geoIntersects = geospatial.cast$geoIntersects; +handle.$or = createLogicalQueryOperatorHandler('$or'); +handle.$and = createLogicalQueryOperatorHandler('$and'); +handle.$nor = createLogicalQueryOperatorHandler('$nor'); + +function createLogicalQueryOperatorHandler(op) { + return function logicalQueryOperatorHandler(val, context) { + if (!Array.isArray(val)) { + throw new TypeError('conditional ' + op + ' requires an array'); + } + + const ret = []; + for (const obj of val) { + ret.push(cast(this.casterConstructor.schema ?? context.schema, obj, null, this && this.$$context)); + } + + return ret; + }; +} + +handle.$near = +handle.$nearSphere = geospatial.cast$near; + +handle.$within = +handle.$geoWithin = geospatial.cast$within; + +handle.$size = +handle.$minDistance = +handle.$maxDistance = castToNumber; + +handle.$exists = $exists; +handle.$type = $type; + +handle.$eq = +handle.$gt = +handle.$gte = +handle.$lt = +handle.$lte = +handle.$not = +handle.$regex = +handle.$ne = SchemaArray.prototype._castForQuery; + +// `$in` is special because you can also include an empty array in the query +// like `$in: [1, []]`, see gh-5913 +handle.$nin = SchemaType.prototype.$conditionalHandlers.$nin; +handle.$in = SchemaType.prototype.$conditionalHandlers.$in; + +/*! + * Module exports. + */ + +module.exports = SchemaArray; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/bigint.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/bigint.js new file mode 100644 index 000000000..02912627d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/bigint.js @@ -0,0 +1,247 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const CastError = require('../error/cast'); +const SchemaType = require('../schemaType'); +const castBigInt = require('../cast/bigint'); + +/** + * BigInt SchemaType constructor. + * + * @param {String} path + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaBigInt(path, options) { + SchemaType.call(this, path, options, 'BigInt'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaBigInt.schemaName = 'BigInt'; + +SchemaBigInt.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaBigInt.prototype = Object.create(SchemaType.prototype); +SchemaBigInt.prototype.constructor = SchemaBigInt; + +/*! + * ignore + */ + +SchemaBigInt._cast = castBigInt; + +/** + * Sets a default option for all BigInt instances. + * + * #### Example: + * + * // Make all bigints required by default + * mongoose.Schema.BigInt.set('required', true); + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaBigInt.set = SchemaType.set; + +SchemaBigInt.setters = []; + +/** + * Attaches a getter for all BigInt instances + * + * #### Example: + * + * // Convert bigints to numbers + * mongoose.Schema.BigInt.get(v => v == null ? v : Number(v)); + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaBigInt.get = SchemaType.get; + +/** + * Get/set the function used to cast arbitrary values to booleans. + * + * #### Example: + * + * // Make Mongoose cast empty string '' to false. + * const original = mongoose.Schema.BigInt.cast(); + * mongoose.Schema.BigInt.cast(v => { + * if (v === '') { + * return false; + * } + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.Schema.BigInt.cast(false); + * + * @param {Function} caster + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaBigInt.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaBigInt._checkRequired = v => v != null; + +/** + * Override the function the required validator uses to check whether a value + * passes the `required` check. + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaBigInt.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. + * + * @param {Any} value + * @return {Boolean} + * @api public + */ + +SchemaBigInt.prototype.checkRequired = function(value) { + return this.constructor._checkRequired(value); +}; + +/** + * Casts to bigint + * + * @param {Object} value + * @param {Object} model this value is optional + * @api private + */ + +SchemaBigInt.prototype.cast = function(value) { + let castBigInt; + if (typeof this._castFunction === 'function') { + castBigInt = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castBigInt = this.constructor.cast(); + } else { + castBigInt = SchemaBigInt.cast(); + } + + try { + return castBigInt(value); + } catch (error) { + throw new CastError('BigInt', value, this.path, error, this); + } +}; + +/*! + * ignore + */ + +SchemaBigInt.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle +}; + +/*! + * ignore + */ + +function handleSingle(val, context) { + return this.castForQuery(null, val, context); +} + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} val + * @api private + */ + +SchemaBigInt.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = SchemaBigInt.$conditionalHandlers[$conditional]; + + if (handler) { + return handler.call(this, val); + } + + return this.applySetters(null, val, context); + } + + try { + return this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } +}; + +/** + * + * @api private + */ + +SchemaBigInt.prototype._castNullish = function _castNullish(v) { + if (typeof v === 'undefined') { + return v; + } + const castBigInt = typeof this.constructor.cast === 'function' ? + this.constructor.cast() : + SchemaBigInt.cast(); + if (castBigInt == null) { + return v; + } + return v; +}; + +/*! + * Module exports. + */ + +module.exports = SchemaBigInt; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/boolean.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/boolean.js new file mode 100644 index 000000000..a887a9e07 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/boolean.js @@ -0,0 +1,297 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const CastError = require('../error/cast'); +const SchemaType = require('../schemaType'); +const castBoolean = require('../cast/boolean'); + +/** + * Boolean SchemaType constructor. + * + * @param {String} path + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaBoolean(path, options) { + SchemaType.call(this, path, options, 'Boolean'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaBoolean.schemaName = 'Boolean'; + +SchemaBoolean.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaBoolean.prototype = Object.create(SchemaType.prototype); +SchemaBoolean.prototype.constructor = SchemaBoolean; + +/*! + * ignore + */ + +SchemaBoolean._cast = castBoolean; + +/** + * Sets a default option for all Boolean instances. + * + * #### Example: + * + * // Make all booleans have `default` of false. + * mongoose.Schema.Boolean.set('default', false); + * + * const Order = mongoose.model('Order', new Schema({ isPaid: Boolean })); + * new Order({ }).isPaid; // false + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaBoolean.set = SchemaType.set; + +SchemaBoolean.setters = []; + +/** + * Attaches a getter for all Boolean instances + * + * #### Example: + * + * mongoose.Schema.Boolean.get(v => v === true ? 'yes' : 'no'); + * + * const Order = mongoose.model('Order', new Schema({ isPaid: Boolean })); + * new Order({ isPaid: false }).isPaid; // 'no' + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaBoolean.get = SchemaType.get; + +/** + * Get/set the function used to cast arbitrary values to booleans. + * + * #### Example: + * + * // Make Mongoose cast empty string '' to false. + * const original = mongoose.Schema.Boolean.cast(); + * mongoose.Schema.Boolean.cast(v => { + * if (v === '') { + * return false; + * } + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.Schema.Boolean.cast(false); + * + * @param {Function} caster + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaBoolean.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaBoolean._defaultCaster = v => { + if (v != null && typeof v !== 'boolean') { + throw new Error(); + } + return v; +}; + +/*! + * ignore + */ + +SchemaBoolean._checkRequired = v => v === true || v === false; + +/** + * Override the function the required validator uses to check whether a boolean + * passes the `required` check. + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaBoolean.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. For a boolean + * to satisfy a required validator, it must be strictly equal to true or to + * false. + * + * @param {Any} value + * @return {Boolean} + * @api public + */ + +SchemaBoolean.prototype.checkRequired = function(value) { + return this.constructor._checkRequired(value); +}; + +/** + * Configure which values get casted to `true`. + * + * #### Example: + * + * const M = mongoose.model('Test', new Schema({ b: Boolean })); + * new M({ b: 'affirmative' }).b; // undefined + * mongoose.Schema.Boolean.convertToTrue.add('affirmative'); + * new M({ b: 'affirmative' }).b; // true + * + * @property convertToTrue + * @static + * @memberOf SchemaBoolean + * @type {Set} + * @api public + */ + +Object.defineProperty(SchemaBoolean, 'convertToTrue', { + get: () => castBoolean.convertToTrue, + set: v => { castBoolean.convertToTrue = v; } +}); + +/** + * Configure which values get casted to `false`. + * + * #### Example: + * + * const M = mongoose.model('Test', new Schema({ b: Boolean })); + * new M({ b: 'nay' }).b; // undefined + * mongoose.Schema.Types.Boolean.convertToFalse.add('nay'); + * new M({ b: 'nay' }).b; // false + * + * @property convertToFalse + * @static + * @memberOf SchemaBoolean + * @type {Set} + * @api public + */ + +Object.defineProperty(SchemaBoolean, 'convertToFalse', { + get: () => castBoolean.convertToFalse, + set: v => { castBoolean.convertToFalse = v; } +}); + +/** + * Casts to boolean + * + * @param {Object} value + * @param {Object} model this value is optional + * @api private + */ + +SchemaBoolean.prototype.cast = function(value) { + let castBoolean; + if (typeof this._castFunction === 'function') { + castBoolean = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castBoolean = this.constructor.cast(); + } else { + castBoolean = SchemaBoolean.cast(); + } + + try { + return castBoolean(value); + } catch (error) { + throw new CastError('Boolean', value, this.path, error, this); + } +}; + +SchemaBoolean.$conditionalHandlers = { ...SchemaType.prototype.$conditionalHandlers }; + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} val + * @api private + */ + +SchemaBoolean.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = SchemaBoolean.$conditionalHandlers[$conditional]; + + if (handler) { + return handler.call(this, val); + } + + return this.applySetters(null, val, context); + } + + try { + return this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } +}; + +/** + * + * @api private + */ + +SchemaBoolean.prototype._castNullish = function _castNullish(v) { + if (typeof v === 'undefined') { + return v; + } + const castBoolean = typeof this.constructor.cast === 'function' ? + this.constructor.cast() : + SchemaBoolean.cast(); + if (castBoolean == null) { + return v; + } + if (castBoolean.convertToFalse instanceof Set && castBoolean.convertToFalse.has(v)) { + return false; + } + if (castBoolean.convertToTrue instanceof Set && castBoolean.convertToTrue.has(v)) { + return true; + } + return v; +}; + +/*! + * Module exports. + */ + +module.exports = SchemaBoolean; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/buffer.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/buffer.js new file mode 100644 index 000000000..6444ebd88 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/buffer.js @@ -0,0 +1,299 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseBuffer = require('../types/buffer'); +const SchemaBufferOptions = require('../options/schemaBufferOptions'); +const SchemaType = require('../schemaType'); +const handleBitwiseOperator = require('./operators/bitwise'); +const utils = require('../utils'); + +const Binary = MongooseBuffer.Binary; +const CastError = SchemaType.CastError; + +/** + * Buffer SchemaType constructor + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaBuffer(key, options) { + SchemaType.call(this, key, options, 'Buffer'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaBuffer.schemaName = 'Buffer'; + +SchemaBuffer.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaBuffer.prototype = Object.create(SchemaType.prototype); +SchemaBuffer.prototype.constructor = SchemaBuffer; +SchemaBuffer.prototype.OptionsConstructor = SchemaBufferOptions; + +/*! + * ignore + */ + +SchemaBuffer._checkRequired = v => !!(v && v.length); + +/** + * Sets a default option for all Buffer instances. + * + * #### Example: + * + * // Make all buffers have `required` of true by default. + * mongoose.Schema.Buffer.set('required', true); + * + * const User = mongoose.model('User', new Schema({ test: Buffer })); + * new User({ }).validateSync().errors.test.message; // Path `test` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaBuffer.set = SchemaType.set; + +SchemaBuffer.setters = []; + +/** + * Attaches a getter for all Buffer instances + * + * #### Example: + * + * // Always convert to string when getting an ObjectId + * mongoose.Schema.Types.Buffer.get(v => v.toString('hex')); + * + * const Model = mongoose.model('Test', new Schema({ buf: Buffer } })); + * typeof (new Model({ buf: Buffer.fromString('hello') }).buf); // 'string' + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaBuffer.get = SchemaType.get; + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * #### Example: + * + * // Allow empty strings to pass `required` check + * mongoose.Schema.Types.String.checkRequired(v => v != null); + * + * const M = mongoose.model({ buf: { type: Buffer, required: true } }); + * new M({ buf: Buffer.from('') }).validateSync(); // validation passes! + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaBuffer.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. To satisfy a + * required validator, a buffer must not be null or undefined and have + * non-zero length. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaBuffer.prototype.checkRequired = function(value, doc) { + if (SchemaType._isRef(this, value, doc, true)) { + return !!value; + } + return this.constructor._checkRequired(value); +}; + +/** + * Casts contents + * + * @param {Object} value + * @param {Document} doc document that triggers the casting + * @param {Boolean} init + * @api private + */ + +SchemaBuffer.prototype.cast = function(value, doc, init) { + let ret; + if (SchemaType._isRef(this, value, doc, init)) { + if (value && value.isMongooseBuffer) { + return value; + } + + if (Buffer.isBuffer(value)) { + if (!value || !value.isMongooseBuffer) { + value = new MongooseBuffer(value, [this.path, doc]); + if (this.options.subtype != null) { + value._subtype = this.options.subtype; + } + } + return value; + } + + if (value instanceof Binary) { + ret = new MongooseBuffer(value.value(true), [this.path, doc]); + if (typeof value.sub_type !== 'number') { + throw new CastError('Buffer', value, this.path, null, this); + } + ret._subtype = value.sub_type; + return ret; + } + + if (value == null || utils.isNonBuiltinObject(value)) { + return this._castRef(value, doc, init); + } + } + + // documents + if (value && value._id) { + value = value._id; + } + + if (value && value.isMongooseBuffer) { + return value; + } + + if (Buffer.isBuffer(value)) { + if (!value || !value.isMongooseBuffer) { + value = new MongooseBuffer(value, [this.path, doc]); + if (this.options.subtype != null) { + value._subtype = this.options.subtype; + } + } + return value; + } + + if (value instanceof Binary) { + ret = new MongooseBuffer(value.value(true), [this.path, doc]); + if (typeof value.sub_type !== 'number') { + throw new CastError('Buffer', value, this.path, null, this); + } + ret._subtype = value.sub_type; + return ret; + } + + if (value === null) { + return value; + } + + + const type = typeof value; + if ( + type === 'string' || type === 'number' || Array.isArray(value) || + (type === 'object' && value.type === 'Buffer' && Array.isArray(value.data)) // gh-6863 + ) { + if (type === 'number') { + value = [value]; + } + ret = new MongooseBuffer(value, [this.path, doc]); + if (this.options.subtype != null) { + ret._subtype = this.options.subtype; + } + return ret; + } + + throw new CastError('Buffer', value, this.path, null, this); +}; + +/** + * Sets the default [subtype](https://studio3t.com/whats-new/best-practices-uuid-mongodb/) + * for this buffer. You can find a [list of allowed subtypes here](https://api.mongodb.com/python/current/api/bson/binary.html). + * + * #### Example: + * + * const s = new Schema({ uuid: { type: Buffer, subtype: 4 }); + * const M = db.model('M', s); + * const m = new M({ uuid: 'test string' }); + * m.uuid._subtype; // 4 + * + * @param {Number} subtype the default subtype + * @return {SchemaType} this + * @api public + */ + +SchemaBuffer.prototype.subtype = function(subtype) { + this.options.subtype = subtype; + return this; +}; + +/*! + * ignore + */ +function handleSingle(val, context) { + return this.castForQuery(null, val, context); +} + +SchemaBuffer.prototype.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $bitsAllClear: handleBitwiseOperator, + $bitsAnyClear: handleBitwiseOperator, + $bitsAllSet: handleBitwiseOperator, + $bitsAnySet: handleBitwiseOperator, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle +}; + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} [value] + * @api private + */ + +SchemaBuffer.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + if (!handler) { + throw new Error('Can\'t use ' + $conditional + ' with Buffer.'); + } + return handler.call(this, val); + } + + let casted; + try { + casted = this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } + return casted ? casted.toObject({ transform: false, virtuals: false }) : casted; +}; + +/*! + * Module exports. + */ + +module.exports = SchemaBuffer; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/date.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/date.js new file mode 100644 index 000000000..6cbfee838 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/date.js @@ -0,0 +1,433 @@ +/*! + * Module requirements. + */ + +'use strict'; + +const MongooseError = require('../error/index'); +const SchemaDateOptions = require('../options/schemaDateOptions'); +const SchemaType = require('../schemaType'); +const castDate = require('../cast/date'); +const getConstructorName = require('../helpers/getConstructorName'); +const utils = require('../utils'); + +const CastError = SchemaType.CastError; + +/** + * Date SchemaType constructor. + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaDate(key, options) { + SchemaType.call(this, key, options, 'Date'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaDate.schemaName = 'Date'; + +SchemaDate.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaDate.prototype = Object.create(SchemaType.prototype); +SchemaDate.prototype.constructor = SchemaDate; +SchemaDate.prototype.OptionsConstructor = SchemaDateOptions; + +/*! + * ignore + */ + +SchemaDate._cast = castDate; + +/** + * Sets a default option for all Date instances. + * + * #### Example: + * + * // Make all dates have `required` of true by default. + * mongoose.Schema.Date.set('required', true); + * + * const User = mongoose.model('User', new Schema({ test: Date })); + * new User({ }).validateSync().errors.test.message; // Path `test` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaDate.set = SchemaType.set; + +SchemaDate.setters = []; + +/** + * Attaches a getter for all Date instances + * + * #### Example: + * + * // Always convert Dates to string + * mongoose.Date.get(v => v.toString()); + * + * const Model = mongoose.model('Test', new Schema({ date: { type: Date, default: () => new Date() } })); + * typeof (new Model({}).date); // 'string' + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaDate.get = SchemaType.get; + +/** + * Get/set the function used to cast arbitrary values to dates. + * + * #### Example: + * + * // Mongoose converts empty string '' into `null` for date types. You + * // can create a custom caster to disable it. + * const original = mongoose.Schema.Types.Date.cast(); + * mongoose.Schema.Types.Date.cast(v => { + * assert.ok(v !== ''); + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.Schema.Types.Date.cast(false); + * + * @param {Function} caster + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaDate.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaDate._defaultCaster = v => { + if (v != null && !(v instanceof Date)) { + throw new Error(); + } + return v; +}; + +/** + * Declares a TTL index (rounded to the nearest second) for _Date_ types only. + * + * This sets the `expireAfterSeconds` index option available in MongoDB >= 2.1.2. + * This index type is only compatible with Date types. + * + * #### Example: + * + * // expire in 24 hours + * new Schema({ createdAt: { type: Date, expires: 60*60*24 }}); + * + * `expires` utilizes the `ms` module from [guille](https://github.com/guille/) allowing us to use a friendlier syntax: + * + * #### Example: + * + * // expire in 24 hours + * new Schema({ createdAt: { type: Date, expires: '24h' }}); + * + * // expire in 1.5 hours + * new Schema({ createdAt: { type: Date, expires: '1.5h' }}); + * + * // expire in 7 days + * const schema = new Schema({ createdAt: Date }); + * schema.path('createdAt').expires('7d'); + * + * @param {Number|String} when + * @added 3.0.0 + * @return {SchemaType} this + * @api public + */ + +SchemaDate.prototype.expires = function(when) { + if (getConstructorName(this._index) !== 'Object') { + this._index = {}; + } + + this._index.expires = when; + utils.expires(this._index); + return this; +}; + +/*! + * ignore + */ + +SchemaDate._checkRequired = v => v instanceof Date; + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * #### Example: + * + * // Allow empty strings to pass `required` check + * mongoose.Schema.Types.String.checkRequired(v => v != null); + * + * const M = mongoose.model({ str: { type: String, required: true } }); + * new M({ str: '' }).validateSync(); // `null`, validation passes! + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaDate.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. To satisfy + * a required validator, the given value must be an instance of `Date`. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaDate.prototype.checkRequired = function(value, doc) { + if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) { + return value != null; + } + + // `require('util').inherits()` does **not** copy static properties, and + // plugins like mongoose-float use `inherits()` for pre-ES6. + const _checkRequired = typeof this.constructor.checkRequired === 'function' ? + this.constructor.checkRequired() : + SchemaDate.checkRequired(); + return _checkRequired(value); +}; + +/** + * Sets a minimum date validator. + * + * #### Example: + * + * const s = new Schema({ d: { type: Date, min: Date('1970-01-01') }) + * const M = db.model('M', s) + * const m = new M({ d: Date('1969-12-31') }) + * m.save(function (err) { + * console.error(err) // validator error + * m.d = Date('2014-12-08'); + * m.save() // success + * }) + * + * // custom error messages + * // We can also use the special {MIN} token which will be replaced with the invalid value + * const min = [Date('1970-01-01'), 'The value of path `{PATH}` ({VALUE}) is beneath the limit ({MIN}).']; + * const schema = new Schema({ d: { type: Date, min: min }) + * const M = mongoose.model('M', schema); + * const s= new M({ d: Date('1969-12-31') }); + * s.validate(function (err) { + * console.log(String(err)) // ValidationError: The value of path `d` (1969-12-31) is before the limit (1970-01-01). + * }) + * + * @param {Date} value minimum date + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaDate.prototype.min = function(value, message) { + if (this.minValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.minValidator; + }, this); + } + + if (value) { + let msg = message || MongooseError.messages.Date.min; + if (typeof msg === 'string') { + msg = msg.replace(/{MIN}/, (value === Date.now ? 'Date.now()' : value.toString())); + } + const _this = this; + this.validators.push({ + validator: this.minValidator = function(val) { + let _value = value; + if (typeof value === 'function' && value !== Date.now) { + _value = _value.call(this); + } + const min = (_value === Date.now ? _value() : _this.cast(_value)); + return val === null || val.valueOf() >= min.valueOf(); + }, + message: msg, + type: 'min', + min: value + }); + } + + return this; +}; + +/** + * Sets a maximum date validator. + * + * #### Example: + * + * const s = new Schema({ d: { type: Date, max: Date('2014-01-01') }) + * const M = db.model('M', s) + * const m = new M({ d: Date('2014-12-08') }) + * m.save(function (err) { + * console.error(err) // validator error + * m.d = Date('2013-12-31'); + * m.save() // success + * }) + * + * // custom error messages + * // We can also use the special {MAX} token which will be replaced with the invalid value + * const max = [Date('2014-01-01'), 'The value of path `{PATH}` ({VALUE}) exceeds the limit ({MAX}).']; + * const schema = new Schema({ d: { type: Date, max: max }) + * const M = mongoose.model('M', schema); + * const s= new M({ d: Date('2014-12-08') }); + * s.validate(function (err) { + * console.log(String(err)) // ValidationError: The value of path `d` (2014-12-08) exceeds the limit (2014-01-01). + * }) + * + * @param {Date} maximum date + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaDate.prototype.max = function(value, message) { + if (this.maxValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.maxValidator; + }, this); + } + + if (value) { + let msg = message || MongooseError.messages.Date.max; + if (typeof msg === 'string') { + msg = msg.replace(/{MAX}/, (value === Date.now ? 'Date.now()' : value.toString())); + } + const _this = this; + this.validators.push({ + validator: this.maxValidator = function(val) { + let _value = value; + if (typeof _value === 'function' && _value !== Date.now) { + _value = _value.call(this); + } + const max = (_value === Date.now ? _value() : _this.cast(_value)); + return val === null || val.valueOf() <= max.valueOf(); + }, + message: msg, + type: 'max', + max: value + }); + } + + return this; +}; + +/** + * Casts to date + * + * @param {Object} value to cast + * @api private + */ + +SchemaDate.prototype.cast = function(value) { + let castDate; + if (typeof this._castFunction === 'function') { + castDate = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castDate = this.constructor.cast(); + } else { + castDate = SchemaDate.cast(); + } + + try { + return castDate(value); + } catch (error) { + throw new CastError('date', value, this.path, error, this); + } +}; + +/** + * Date Query casting. + * + * @param {Any} val + * @api private + */ + +function handleSingle(val) { + return this.cast(val); +} + +SchemaDate.prototype.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle +}; + + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} [value] + * @api private + */ + +SchemaDate.prototype.castForQuery = function($conditional, val, context) { + if ($conditional == null) { + try { + return this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } + } + + const handler = this.$conditionalHandlers[$conditional]; + + if (!handler) { + throw new Error('Can\'t use ' + $conditional + ' with Date.'); + } + + return handler.call(this, val); +}; + +/*! + * Module exports. + */ + +module.exports = SchemaDate; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/decimal128.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/decimal128.js new file mode 100644 index 000000000..70fcfecc6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/decimal128.js @@ -0,0 +1,228 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const SchemaType = require('../schemaType'); +const CastError = SchemaType.CastError; +const castDecimal128 = require('../cast/decimal128'); +const isBsonType = require('../helpers/isBsonType'); + +/** + * Decimal128 SchemaType constructor. + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaDecimal128(key, options) { + SchemaType.call(this, key, options, 'Decimal128'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaDecimal128.schemaName = 'Decimal128'; + +SchemaDecimal128.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaDecimal128.prototype = Object.create(SchemaType.prototype); +SchemaDecimal128.prototype.constructor = SchemaDecimal128; + +/*! + * ignore + */ + +SchemaDecimal128._cast = castDecimal128; + +/** + * Sets a default option for all Decimal128 instances. + * + * #### Example: + * + * // Make all decimal 128s have `required` of true by default. + * mongoose.Schema.Decimal128.set('required', true); + * + * const User = mongoose.model('User', new Schema({ test: mongoose.Decimal128 })); + * new User({ }).validateSync().errors.test.message; // Path `test` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaDecimal128.set = SchemaType.set; + +SchemaDecimal128.setters = []; + +/** + * Attaches a getter for all Decimal128 instances + * + * #### Example: + * + * // Automatically convert Decimal128s to Numbers + * mongoose.Schema.Decimal128.get(v => v == null ? v : Number(v)); + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaDecimal128.get = SchemaType.get; + +/** + * Get/set the function used to cast arbitrary values to decimals. + * + * #### Example: + * + * // Make Mongoose only refuse to cast numbers as decimal128 + * const original = mongoose.Schema.Types.Decimal128.cast(); + * mongoose.Decimal128.cast(v => { + * assert.ok(typeof v !== 'number'); + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.Decimal128.cast(false); + * + * @param {Function} [caster] + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaDecimal128.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaDecimal128._defaultCaster = v => { + if (v != null && !isBsonType(v, 'Decimal128')) { + throw new Error(); + } + return v; +}; + +/*! + * ignore + */ + +SchemaDecimal128._checkRequired = v => isBsonType(v, 'Decimal128'); + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaDecimal128.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaDecimal128.prototype.checkRequired = function checkRequired(value, doc) { + if (SchemaType._isRef(this, value, doc, true)) { + return !!value; + } + + // `require('util').inherits()` does **not** copy static properties, and + // plugins like mongoose-float use `inherits()` for pre-ES6. + const _checkRequired = typeof this.constructor.checkRequired === 'function' ? + this.constructor.checkRequired() : + SchemaDecimal128.checkRequired(); + + return _checkRequired(value); +}; + +/** + * Casts to Decimal128 + * + * @param {Object} value + * @param {Object} doc + * @param {Boolean} init whether this is an initialization cast + * @api private + */ + +SchemaDecimal128.prototype.cast = function(value, doc, init) { + if (SchemaType._isRef(this, value, doc, init)) { + if (isBsonType(value, 'Decimal128')) { + return value; + } + + return this._castRef(value, doc, init); + } + + let castDecimal128; + if (typeof this._castFunction === 'function') { + castDecimal128 = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castDecimal128 = this.constructor.cast(); + } else { + castDecimal128 = SchemaDecimal128.cast(); + } + + try { + return castDecimal128(value); + } catch (error) { + throw new CastError('Decimal128', value, this.path, error, this); + } +}; + +/*! + * ignore + */ + +function handleSingle(val) { + return this.cast(val); +} + +SchemaDecimal128.prototype.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle +}; + +/*! + * Module exports. + */ + +module.exports = SchemaDecimal128; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/documentArray.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/documentArray.js new file mode 100644 index 000000000..a10d2ec76 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/documentArray.js @@ -0,0 +1,657 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const CastError = require('../error/cast'); +const DocumentArrayElement = require('./documentArrayElement'); +const EventEmitter = require('events').EventEmitter; +const SchemaArray = require('./array'); +const SchemaDocumentArrayOptions = + require('../options/schemaDocumentArrayOptions'); +const SchemaType = require('../schemaType'); +const cast = require('../cast'); +const discriminator = require('../helpers/model/discriminator'); +const handleIdOption = require('../helpers/schema/handleIdOption'); +const handleSpreadDoc = require('../helpers/document/handleSpreadDoc'); +const isOperator = require('../helpers/query/isOperator'); +const utils = require('../utils'); +const getConstructor = require('../helpers/discriminator/getConstructor'); +const InvalidSchemaOptionError = require('../error/invalidSchemaOption'); + +const arrayAtomicsSymbol = require('../helpers/symbols').arrayAtomicsSymbol; +const arrayPathSymbol = require('../helpers/symbols').arrayPathSymbol; +const documentArrayParent = require('../helpers/symbols').documentArrayParent; + +let MongooseDocumentArray; +let Subdocument; + +/** + * SubdocsArray SchemaType constructor + * + * @param {String} key + * @param {Schema} schema + * @param {Object} options + * @param {Object} schemaOptions + * @inherits SchemaArray + * @api public + */ + +function SchemaDocumentArray(key, schema, options, schemaOptions) { + if (schema.options && schema.options.timeseries) { + throw new InvalidSchemaOptionError(key, 'timeseries'); + } + const schemaTypeIdOption = SchemaDocumentArray.defaultOptions && + SchemaDocumentArray.defaultOptions._id; + if (schemaTypeIdOption != null) { + schemaOptions = schemaOptions || {}; + schemaOptions._id = schemaTypeIdOption; + } + + if (schemaOptions != null && schemaOptions._id != null) { + schema = handleIdOption(schema, schemaOptions); + } else if (options != null && options._id != null) { + schema = handleIdOption(schema, options); + } + + const EmbeddedDocument = _createConstructor(schema, options); + EmbeddedDocument.prototype.$basePath = key; + + SchemaArray.call(this, key, EmbeddedDocument, options); + + this.schema = schema; + this.schemaOptions = schemaOptions || {}; + this.$isMongooseDocumentArray = true; + this.Constructor = EmbeddedDocument; + + EmbeddedDocument.base = schema.base; + + const fn = this.defaultValue; + + if (!('defaultValue' in this) || fn !== void 0) { + this.default(function() { + let arr = fn.call(this); + if (arr != null && !Array.isArray(arr)) { + arr = [arr]; + } + // Leave it up to `cast()` to convert this to a documentarray + return arr; + }); + } + + const $parentSchemaType = this; + this.$embeddedSchemaType = new DocumentArrayElement(key + '.$', { + required: this && + this.schemaOptions && + this.schemaOptions.required || false, + $parentSchemaType + }); + + this.$embeddedSchemaType.caster = this.Constructor; + this.$embeddedSchemaType.schema = this.schema; +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaDocumentArray.schemaName = 'DocumentArray'; + +/** + * Options for all document arrays. + * + * - `castNonArrays`: `true` by default. If `false`, Mongoose will throw a CastError when a value isn't an array. If `true`, Mongoose will wrap the provided value in an array before casting. + * + * @api public + */ + +SchemaDocumentArray.options = { castNonArrays: true }; + +/*! + * Inherits from SchemaArray. + */ +SchemaDocumentArray.prototype = Object.create(SchemaArray.prototype); +SchemaDocumentArray.prototype.constructor = SchemaDocumentArray; +SchemaDocumentArray.prototype.OptionsConstructor = SchemaDocumentArrayOptions; +SchemaDocumentArray.prototype.$conditionalHandlers = { ...SchemaArray.prototype.$conditionalHandlers }; + +/*! + * ignore + */ + +function _createConstructor(schema, options, baseClass) { + Subdocument || (Subdocument = require('../types/arraySubdocument')); + + // compile an embedded document for this schema + function EmbeddedDocument() { + Subdocument.apply(this, arguments); + if (this.__parentArray == null || this.__parentArray.getArrayParent() == null) { + return; + } + this.$session(this.__parentArray.getArrayParent().$session()); + } + + schema._preCompile(); + + const proto = baseClass != null ? baseClass.prototype : Subdocument.prototype; + EmbeddedDocument.prototype = Object.create(proto); + EmbeddedDocument.prototype.$__setSchema(schema); + EmbeddedDocument.schema = schema; + EmbeddedDocument.prototype.constructor = EmbeddedDocument; + EmbeddedDocument.$isArraySubdocument = true; + EmbeddedDocument.events = new EventEmitter(); + EmbeddedDocument.base = schema.base; + + // apply methods + for (const i in schema.methods) { + EmbeddedDocument.prototype[i] = schema.methods[i]; + } + + // apply statics + for (const i in schema.statics) { + EmbeddedDocument[i] = schema.statics[i]; + } + + for (const i in EventEmitter.prototype) { + EmbeddedDocument[i] = EventEmitter.prototype[i]; + } + + EmbeddedDocument.options = options; + + return EmbeddedDocument; +} + +/** + * Adds a discriminator to this document array. + * + * #### Example: + * + * const shapeSchema = Schema({ name: String }, { discriminatorKey: 'kind' }); + * const schema = Schema({ shapes: [shapeSchema] }); + * + * const docArrayPath = parentSchema.path('shapes'); + * docArrayPath.discriminator('Circle', Schema({ radius: Number })); + * + * @param {String} name + * @param {Schema} schema fields to add to the schema for instances of this sub-class + * @param {Object|string} [options] If string, same as `options.value`. + * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter. + * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning. + * @see discriminators https://mongoosejs.com/docs/discriminators.html + * @return {Function} the constructor Mongoose will use for creating instances of this discriminator model + * @api public + */ + +SchemaDocumentArray.prototype.discriminator = function(name, schema, options) { + if (typeof name === 'function') { + name = utils.getFunctionName(name); + } + + options = options || {}; + const tiedValue = utils.isPOJO(options) ? options.value : options; + const clone = typeof options.clone === 'boolean' ? options.clone : true; + + if (schema.instanceOfSchema && clone) { + schema = schema.clone(); + } + + schema = discriminator(this.casterConstructor, name, schema, tiedValue, null, null, options?.overwriteExisting); + + const EmbeddedDocument = _createConstructor(schema, null, this.casterConstructor); + EmbeddedDocument.baseCasterConstructor = this.casterConstructor; + + try { + Object.defineProperty(EmbeddedDocument, 'name', { + value: name + }); + } catch (error) { + // Ignore error, only happens on old versions of node + } + + this.casterConstructor.discriminators[name] = EmbeddedDocument; + + return this.casterConstructor.discriminators[name]; +}; + +/** + * Performs local validations first, then validations on each embedded doc + * + * @api private + */ + +SchemaDocumentArray.prototype.doValidate = function(array, fn, scope, options) { + // lazy load + MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentArray')); + + const _this = this; + try { + SchemaType.prototype.doValidate.call(this, array, cb, scope); + } catch (err) { + return fn(err); + } + + function cb(err) { + if (err) { + return fn(err); + } + + let count = array && array.length; + let error; + + if (!count) { + return fn(); + } + if (options && options.updateValidator) { + return fn(); + } + if (!utils.isMongooseDocumentArray(array)) { + array = new MongooseDocumentArray(array, _this.path, scope); + } + + // handle sparse arrays, do not use array.forEach which does not + // iterate over sparse elements yet reports array.length including + // them :( + + function callback(err) { + if (err != null) { + error = err; + } + --count || fn(error); + } + + for (let i = 0, len = count; i < len; ++i) { + // sidestep sparse entries + let doc = array[i]; + if (doc == null) { + --count || fn(error); + continue; + } + + // If you set the array index directly, the doc might not yet be + // a full fledged mongoose subdoc, so make it into one. + if (!(doc instanceof Subdocument)) { + const Constructor = getConstructor(_this.casterConstructor, array[i]); + doc = array[i] = new Constructor(doc, array, undefined, undefined, i); + } + + if (options != null && options.validateModifiedOnly && !doc.$isModified()) { + --count || fn(error); + continue; + } + + doc.$__validate(null, options, callback); + } + } +}; + +/** + * Performs local validations first, then validations on each embedded doc. + * + * #### Note: + * + * This method ignores the asynchronous validators. + * + * @return {MongooseError|undefined} + * @api private + */ + +SchemaDocumentArray.prototype.doValidateSync = function(array, scope, options) { + const schemaTypeError = SchemaType.prototype.doValidateSync.call(this, array, scope); + if (schemaTypeError != null) { + return schemaTypeError; + } + + const count = array && array.length; + let resultError = null; + + if (!count) { + return; + } + + // handle sparse arrays, do not use array.forEach which does not + // iterate over sparse elements yet reports array.length including + // them :( + + for (let i = 0, len = count; i < len; ++i) { + // sidestep sparse entries + let doc = array[i]; + if (!doc) { + continue; + } + + // If you set the array index directly, the doc might not yet be + // a full fledged mongoose subdoc, so make it into one. + if (!(doc instanceof Subdocument)) { + const Constructor = getConstructor(this.casterConstructor, array[i]); + doc = array[i] = new Constructor(doc, array, undefined, undefined, i); + } + + if (options != null && options.validateModifiedOnly && !doc.$isModified()) { + continue; + } + + const subdocValidateError = doc.validateSync(options); + + if (subdocValidateError && resultError == null) { + resultError = subdocValidateError; + } + } + + return resultError; +}; + +/*! + * ignore + */ + +SchemaDocumentArray.prototype.getDefault = function(scope, init, options) { + let ret = typeof this.defaultValue === 'function' + ? this.defaultValue.call(scope) + : this.defaultValue; + + if (ret == null) { + return ret; + } + + if (options && options.skipCast) { + return ret; + } + + // lazy load + MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentArray')); + + if (!Array.isArray(ret)) { + ret = [ret]; + } + + ret = new MongooseDocumentArray(ret, this.path, scope); + + for (let i = 0; i < ret.length; ++i) { + const Constructor = getConstructor(this.casterConstructor, ret[i]); + const _subdoc = new Constructor({}, ret, undefined, + undefined, i); + _subdoc.$init(ret[i]); + _subdoc.isNew = true; + + // Make sure all paths in the subdoc are set to `default` instead + // of `init` since we used `init`. + Object.assign(_subdoc.$__.activePaths.default, _subdoc.$__.activePaths.init); + _subdoc.$__.activePaths.init = {}; + + ret[i] = _subdoc; + } + + return ret; +}; + +const _toObjectOptions = Object.freeze({ transform: false, virtuals: false }); +const initDocumentOptions = Object.freeze({ skipId: false, willInit: true }); + +/** + * Casts contents + * + * @param {Object} value + * @param {Document} document that triggers the casting + * @api private + */ + +SchemaDocumentArray.prototype.cast = function(value, doc, init, prev, options) { + // lazy load + MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentArray')); + + // Skip casting if `value` is the same as the previous value, no need to cast. See gh-9266 + if (value != null && value[arrayPathSymbol] != null && value === prev) { + return value; + } + + let selected; + let subdoc; + + options = options || {}; + + const path = options.path || this.path; + + if (!Array.isArray(value)) { + if (!init && !SchemaDocumentArray.options.castNonArrays) { + throw new CastError('DocumentArray', value, this.path, null, this); + } + // gh-2442 mark whole array as modified if we're initializing a doc from + // the db and the path isn't an array in the document + if (!!doc && init) { + doc.markModified(path); + } + return this.cast([value], doc, init, prev, options); + } + + // We need to create a new array, otherwise change tracking will + // update the old doc (gh-4449) + if (!options.skipDocumentArrayCast || utils.isMongooseDocumentArray(value)) { + value = new MongooseDocumentArray(value, path, doc); + } + + if (prev != null) { + value[arrayAtomicsSymbol] = prev[arrayAtomicsSymbol] || {}; + } + + if (options.arrayPathIndex != null) { + value[arrayPathSymbol] = path + '.' + options.arrayPathIndex; + } + + const rawArray = utils.isMongooseDocumentArray(value) ? value.__array : value; + const len = rawArray.length; + + for (let i = 0; i < len; ++i) { + if (!rawArray[i]) { + continue; + } + + const Constructor = getConstructor(this.casterConstructor, rawArray[i]); + + const spreadDoc = handleSpreadDoc(rawArray[i], true); + if (rawArray[i] !== spreadDoc) { + rawArray[i] = spreadDoc; + } + + if (rawArray[i] instanceof Subdocument) { + if (rawArray[i][documentArrayParent] !== doc) { + if (init) { + const subdoc = new Constructor(null, value, initDocumentOptions, selected, i); + rawArray[i] = subdoc.$init(rawArray[i]); + } else { + const subdoc = new Constructor(rawArray[i], value, undefined, undefined, i); + rawArray[i] = subdoc; + } + } + // Might not have the correct index yet, so ensure it does. + if (rawArray[i].__index == null) { + rawArray[i].$setIndex(i); + } + } else if (rawArray[i] != null) { + if (init) { + if (doc) { + selected || (selected = scopePaths(this, doc.$__.selected, init)); + } else { + selected = true; + } + + subdoc = new Constructor(null, value, initDocumentOptions, selected, i); + rawArray[i] = subdoc.$init(rawArray[i]); + } else { + if (prev && typeof prev.id === 'function') { + subdoc = prev.id(rawArray[i]._id); + } + + if (prev && subdoc && utils.deepEqual(subdoc.toObject(_toObjectOptions), rawArray[i])) { + // handle resetting doc with existing id and same data + subdoc.set(rawArray[i]); + // if set() is hooked it will have no return value + // see gh-746 + rawArray[i] = subdoc; + } else { + try { + subdoc = new Constructor(rawArray[i], value, undefined, + undefined, i); + // if set() is hooked it will have no return value + // see gh-746 + rawArray[i] = subdoc; + } catch (error) { + throw new CastError('embedded', rawArray[i], + value[arrayPathSymbol], error, this); + } + } + } + } + } + + return value; +}; + +/*! + * ignore + */ + +SchemaDocumentArray.prototype.clone = function() { + const options = Object.assign({}, this.options); + const schematype = new this.constructor(this.path, this.schema, options, this.schemaOptions); + schematype.validators = this.validators.slice(); + if (this.requiredValidator !== undefined) { + schematype.requiredValidator = this.requiredValidator; + } + schematype.Constructor.discriminators = Object.assign({}, + this.Constructor.discriminators); + return schematype; +}; + +/*! + * ignore + */ + +SchemaDocumentArray.prototype.applyGetters = function(value, scope) { + return SchemaType.prototype.applyGetters.call(this, value, scope); +}; + +/** + * Scopes paths selected in a query to this array. + * Necessary for proper default application of subdocument values. + * + * @param {DocumentArrayPath} array the array to scope `fields` paths + * @param {Object|undefined} fields the root fields selected in the query + * @param {Boolean|undefined} init if we are being created part of a query result + * @api private + */ + +function scopePaths(array, fields, init) { + if (!(init && fields)) { + return undefined; + } + + const path = array.path + '.'; + const keys = Object.keys(fields); + let i = keys.length; + const selected = {}; + let hasKeys; + let key; + let sub; + + while (i--) { + key = keys[i]; + if (key.startsWith(path)) { + sub = key.substring(path.length); + if (sub === '$') { + continue; + } + if (sub.startsWith('$.')) { + sub = sub.substring(2); + } + hasKeys || (hasKeys = true); + selected[sub] = fields[key]; + } + } + + return hasKeys && selected || undefined; +} + +/*! + * ignore + */ + +SchemaDocumentArray.defaultOptions = {}; + +/** + * Sets a default option for all DocumentArray instances. + * + * #### Example: + * + * // Make all numbers have option `min` equal to 0. + * mongoose.Schema.DocumentArray.set('_id', false); + * + * @param {String} option The name of the option you'd like to set (e.g. trim, lowercase, etc...) + * @param {Any} value The value of the option you'd like to set. + * @return {void} + * @function set + * @static + * @api public + */ + +SchemaDocumentArray.set = SchemaType.set; + +SchemaDocumentArray.setters = []; + +/** + * Attaches a getter for all DocumentArrayPath instances + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaDocumentArray.get = SchemaType.get; + +/*! + * Handle casting $elemMatch operators + */ + +SchemaDocumentArray.prototype.$conditionalHandlers.$elemMatch = cast$elemMatch; + +function cast$elemMatch(val, context) { + const keys = Object.keys(val); + const numKeys = keys.length; + for (let i = 0; i < numKeys; ++i) { + const key = keys[i]; + const value = val[key]; + if (isOperator(key) && value != null) { + val[key] = this.castForQuery(key, value, context); + } + } + + // Is this an embedded discriminator and is the discriminator key set? + // If so, use the discriminator schema. See gh-7449 + const discriminatorKey = this && + this.casterConstructor && + this.casterConstructor.schema && + this.casterConstructor.schema.options && + this.casterConstructor.schema.options.discriminatorKey; + const discriminators = this && + this.casterConstructor && + this.casterConstructor.schema && + this.casterConstructor.schema.discriminators || {}; + if (discriminatorKey != null && + val[discriminatorKey] != null && + discriminators[val[discriminatorKey]] != null) { + return cast(discriminators[val[discriminatorKey]], val, null, this && this.$$context); + } + + const schema = this.casterConstructor.schema ?? context.schema; + return cast(schema, val, null, this && this.$$context); +} + +/*! + * Module exports. + */ + +module.exports = SchemaDocumentArray; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/documentArrayElement.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/documentArrayElement.js new file mode 100644 index 000000000..5250b74b5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/documentArrayElement.js @@ -0,0 +1,100 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseError = require('../error/mongooseError'); +const SchemaType = require('../schemaType'); +const SchemaSubdocument = require('./subdocument'); +const getConstructor = require('../helpers/discriminator/getConstructor'); + +/** + * DocumentArrayElement SchemaType constructor. + * + * @param {String} path + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaDocumentArrayElement(path, options) { + this.$parentSchemaType = options && options.$parentSchemaType; + if (!this.$parentSchemaType) { + throw new MongooseError('Cannot create DocumentArrayElement schematype without a parent'); + } + delete options.$parentSchemaType; + + SchemaType.call(this, path, options, 'DocumentArrayElement'); + + this.$isMongooseDocumentArrayElement = true; +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaDocumentArrayElement.schemaName = 'DocumentArrayElement'; + +SchemaDocumentArrayElement.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaDocumentArrayElement.prototype = Object.create(SchemaType.prototype); +SchemaDocumentArrayElement.prototype.constructor = SchemaDocumentArrayElement; + +/** + * Casts `val` for DocumentArrayElement. + * + * @param {Object} value to cast + * @api private + */ + +SchemaDocumentArrayElement.prototype.cast = function(...args) { + return this.$parentSchemaType.cast(...args)[0]; +}; + +/** + * Casts contents for queries. + * + * @param {String} $cond + * @param {any} [val] + * @api private + */ + +SchemaDocumentArrayElement.prototype.doValidate = function(value, fn, scope, options) { + const Constructor = getConstructor(this.caster, value); + + if (value && !(value instanceof Constructor)) { + value = new Constructor(value, scope, null, null, options && options.index != null ? options.index : null); + } + + return SchemaSubdocument.prototype.doValidate.call(this, value, fn, scope, options); +}; + +/** + * Clone the current SchemaType + * + * @return {DocumentArrayElement} The cloned instance + * @api private + */ + +SchemaDocumentArrayElement.prototype.clone = function() { + this.options.$parentSchemaType = this.$parentSchemaType; + const ret = SchemaType.prototype.clone.apply(this, arguments); + delete this.options.$parentSchemaType; + + ret.caster = this.caster; + ret.schema = this.schema; + + return ret; +}; + +/*! + * Module exports. + */ + +module.exports = SchemaDocumentArrayElement; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/index.js new file mode 100644 index 000000000..0caf091ad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/index.js @@ -0,0 +1,28 @@ + +/*! + * Module exports. + */ + +'use strict'; + +exports.Array = require('./array'); +exports.BigInt = require('./bigint'); +exports.Boolean = require('./boolean'); +exports.Buffer = require('./buffer'); +exports.Date = require('./date'); +exports.Decimal128 = exports.Decimal = require('./decimal128'); +exports.DocumentArray = require('./documentArray'); +exports.Map = require('./map'); +exports.Mixed = require('./mixed'); +exports.Number = require('./number'); +exports.ObjectId = require('./objectId'); +exports.String = require('./string'); +exports.Subdocument = require('./subdocument'); +exports.UUID = require('./uuid'); + +// alias + +exports.Oid = exports.ObjectId; +exports.Object = exports.Mixed; +exports.Bool = exports.Boolean; +exports.ObjectID = exports.ObjectId; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/map.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/map.js new file mode 100644 index 000000000..1c7c41ae9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/map.js @@ -0,0 +1,84 @@ +'use strict'; + +/*! + * ignore + */ + +const MongooseMap = require('../types/map'); +const SchemaMapOptions = require('../options/schemaMapOptions'); +const SchemaType = require('../schemaType'); +/*! + * ignore + */ + +class SchemaMap extends SchemaType { + constructor(key, options) { + super(key, options, 'Map'); + this.$isSchemaMap = true; + } + + set(option, value) { + return SchemaType.set(option, value); + } + + cast(val, doc, init) { + if (val instanceof MongooseMap) { + return val; + } + + const path = this.path; + + if (init) { + const map = new MongooseMap({}, path, doc, this.$__schemaType); + + if (val instanceof global.Map) { + for (const key of val.keys()) { + let _val = val.get(key); + if (_val == null) { + _val = map.$__schemaType._castNullish(_val); + } else { + _val = map.$__schemaType.cast(_val, doc, true, null, { path: path + '.' + key }); + } + map.$init(key, _val); + } + } else { + for (const key of Object.keys(val)) { + let _val = val[key]; + if (_val == null) { + _val = map.$__schemaType._castNullish(_val); + } else { + _val = map.$__schemaType.cast(_val, doc, true, null, { path: path + '.' + key }); + } + map.$init(key, _val); + } + } + + return map; + } + + return new MongooseMap(val, path, doc, this.$__schemaType); + } + + clone() { + const schematype = super.clone(); + + if (this.$__schemaType != null) { + schematype.$__schemaType = this.$__schemaType.clone(); + } + return schematype; + } +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaMap.schemaName = 'Map'; + +SchemaMap.prototype.OptionsConstructor = SchemaMapOptions; + +SchemaMap.defaultOptions = {}; + +module.exports = SchemaMap; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/mixed.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/mixed.js new file mode 100644 index 000000000..a645a981f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/mixed.js @@ -0,0 +1,131 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const SchemaType = require('../schemaType'); +const symbols = require('./symbols'); +const isObject = require('../helpers/isObject'); +const utils = require('../utils'); + +/** + * Mixed SchemaType constructor. + * + * @param {String} path + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaMixed(path, options) { + if (options && options.default) { + const def = options.default; + if (Array.isArray(def) && def.length === 0) { + // make sure empty array defaults are handled + options.default = Array; + } else if (!options.shared && isObject(def) && Object.keys(def).length === 0) { + // prevent odd "shared" objects between documents + options.default = function() { + return {}; + }; + } + } + + SchemaType.call(this, path, options, 'Mixed'); + + this[symbols.schemaMixedSymbol] = true; +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaMixed.schemaName = 'Mixed'; + +SchemaMixed.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaMixed.prototype = Object.create(SchemaType.prototype); +SchemaMixed.prototype.constructor = SchemaMixed; + +/** + * Attaches a getter for all Mixed paths. + * + * #### Example: + * + * // Hide the 'hidden' path + * mongoose.Schema.Mixed.get(v => Object.assign({}, v, { hidden: null })); + * + * const Model = mongoose.model('Test', new Schema({ test: {} })); + * new Model({ test: { hidden: 'Secret!' } }).test.hidden; // null + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaMixed.get = SchemaType.get; + +/** + * Sets a default option for all Mixed instances. + * + * #### Example: + * + * // Make all mixed instances have `required` of true by default. + * mongoose.Schema.Mixed.set('required', true); + * + * const User = mongoose.model('User', new Schema({ test: mongoose.Mixed })); + * new User({ }).validateSync().errors.test.message; // Path `test` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaMixed.set = SchemaType.set; + +SchemaMixed.setters = []; + +/** + * Casts `val` for Mixed. + * + * _this is a no-op_ + * + * @param {Object} value to cast + * @api private + */ + +SchemaMixed.prototype.cast = function(val) { + if (val instanceof Error) { + return utils.errorToPOJO(val); + } + return val; +}; + +/** + * Casts contents for queries. + * + * @param {String} $cond + * @param {any} [val] + * @api private + */ + +SchemaMixed.prototype.castForQuery = function($cond, val) { + return val; +}; + +/*! + * Module exports. + */ + +module.exports = SchemaMixed; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/number.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/number.js new file mode 100644 index 000000000..d89ab7d63 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/number.js @@ -0,0 +1,449 @@ +'use strict'; + +/*! + * Module requirements. + */ + +const MongooseError = require('../error/index'); +const SchemaNumberOptions = require('../options/schemaNumberOptions'); +const SchemaType = require('../schemaType'); +const castNumber = require('../cast/number'); +const handleBitwiseOperator = require('./operators/bitwise'); +const utils = require('../utils'); + +const CastError = SchemaType.CastError; + +/** + * Number SchemaType constructor. + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaNumber(key, options) { + SchemaType.call(this, key, options, 'Number'); +} + +/** + * Attaches a getter for all Number instances. + * + * #### Example: + * + * // Make all numbers round down + * mongoose.Number.get(function(v) { return Math.floor(v); }); + * + * const Model = mongoose.model('Test', new Schema({ test: Number })); + * new Model({ test: 3.14 }).test; // 3 + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaNumber.get = SchemaType.get; + +/** + * Sets a default option for all Number instances. + * + * #### Example: + * + * // Make all numbers have option `min` equal to 0. + * mongoose.Schema.Number.set('min', 0); + * + * const Order = mongoose.model('Order', new Schema({ amount: Number })); + * new Order({ amount: -10 }).validateSync().errors.amount.message; // Path `amount` must be larger than 0. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaNumber.set = SchemaType.set; + +SchemaNumber.setters = []; + +/*! + * ignore + */ + +SchemaNumber._cast = castNumber; + +/** + * Get/set the function used to cast arbitrary values to numbers. + * + * #### Example: + * + * // Make Mongoose cast empty strings '' to 0 for paths declared as numbers + * const original = mongoose.Number.cast(); + * mongoose.Number.cast(v => { + * if (v === '') { return 0; } + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.Number.cast(false); + * + * @param {Function} caster + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaNumber.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaNumber._defaultCaster = v => { + if (typeof v !== 'number') { + throw new Error(); + } + return v; +}; + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaNumber.schemaName = 'Number'; + +SchemaNumber.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaNumber.prototype = Object.create(SchemaType.prototype); +SchemaNumber.prototype.constructor = SchemaNumber; +SchemaNumber.prototype.OptionsConstructor = SchemaNumberOptions; + +/*! + * ignore + */ + +SchemaNumber._checkRequired = v => typeof v === 'number' || v instanceof Number; + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaNumber.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaNumber.prototype.checkRequired = function checkRequired(value, doc) { + if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) { + return value != null; + } + + // `require('util').inherits()` does **not** copy static properties, and + // plugins like mongoose-float use `inherits()` for pre-ES6. + const _checkRequired = typeof this.constructor.checkRequired === 'function' ? + this.constructor.checkRequired() : + SchemaNumber.checkRequired(); + + return _checkRequired(value); +}; + +/** + * Sets a minimum number validator. + * + * #### Example: + * + * const s = new Schema({ n: { type: Number, min: 10 }) + * const M = db.model('M', s) + * const m = new M({ n: 9 }) + * m.save(function (err) { + * console.error(err) // validator error + * m.n = 10; + * m.save() // success + * }) + * + * // custom error messages + * // We can also use the special {MIN} token which will be replaced with the invalid value + * const min = [10, 'The value of path `{PATH}` ({VALUE}) is beneath the limit ({MIN}).']; + * const schema = new Schema({ n: { type: Number, min: min }) + * const M = mongoose.model('Measurement', schema); + * const s= new M({ n: 4 }); + * s.validate(function (err) { + * console.log(String(err)) // ValidationError: The value of path `n` (4) is beneath the limit (10). + * }) + * + * @param {Number} value minimum number + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaNumber.prototype.min = function(value, message) { + if (this.minValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.minValidator; + }, this); + } + + if (value !== null && value !== undefined) { + let msg = message || MongooseError.messages.Number.min; + msg = msg.replace(/{MIN}/, value); + this.validators.push({ + validator: this.minValidator = function(v) { + return v == null || v >= value; + }, + message: msg, + type: 'min', + min: value + }); + } + + return this; +}; + +/** + * Sets a maximum number validator. + * + * #### Example: + * + * const s = new Schema({ n: { type: Number, max: 10 }) + * const M = db.model('M', s) + * const m = new M({ n: 11 }) + * m.save(function (err) { + * console.error(err) // validator error + * m.n = 10; + * m.save() // success + * }) + * + * // custom error messages + * // We can also use the special {MAX} token which will be replaced with the invalid value + * const max = [10, 'The value of path `{PATH}` ({VALUE}) exceeds the limit ({MAX}).']; + * const schema = new Schema({ n: { type: Number, max: max }) + * const M = mongoose.model('Measurement', schema); + * const s= new M({ n: 4 }); + * s.validate(function (err) { + * console.log(String(err)) // ValidationError: The value of path `n` (4) exceeds the limit (10). + * }) + * + * @param {Number} maximum number + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaNumber.prototype.max = function(value, message) { + if (this.maxValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.maxValidator; + }, this); + } + + if (value !== null && value !== undefined) { + let msg = message || MongooseError.messages.Number.max; + msg = msg.replace(/{MAX}/, value); + this.validators.push({ + validator: this.maxValidator = function(v) { + return v == null || v <= value; + }, + message: msg, + type: 'max', + max: value + }); + } + + return this; +}; + +/** + * Sets a enum validator + * + * #### Example: + * + * const s = new Schema({ n: { type: Number, enum: [1, 2, 3] }); + * const M = db.model('M', s); + * + * const m = new M({ n: 4 }); + * await m.save(); // throws validation error + * + * m.n = 3; + * await m.save(); // succeeds + * + * @param {Array} values allowed values + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaNumber.prototype.enum = function(values, message) { + if (this.enumValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.enumValidator; + }, this); + } + + + if (!Array.isArray(values)) { + const isObjectSyntax = utils.isPOJO(values) && values.values != null; + if (isObjectSyntax) { + message = values.message; + values = values.values; + } else if (typeof values === 'number') { + values = Array.prototype.slice.call(arguments); + message = null; + } + + if (utils.isPOJO(values)) { + values = Object.values(values); + } + message = message || MongooseError.messages.Number.enum; + } + + message = message == null ? MongooseError.messages.Number.enum : message; + + this.enumValidator = v => v == null || values.indexOf(v) !== -1; + this.validators.push({ + validator: this.enumValidator, + message: message, + type: 'enum', + enumValues: values + }); + + return this; +}; + +/** + * Casts to number + * + * @param {Object} value value to cast + * @param {Document} doc document that triggers the casting + * @param {Boolean} init + * @api private + */ + +SchemaNumber.prototype.cast = function(value, doc, init) { + if (typeof value !== 'number' && SchemaType._isRef(this, value, doc, init)) { + if (value == null || utils.isNonBuiltinObject(value)) { + return this._castRef(value, doc, init); + } + } + + const val = value && typeof value._id !== 'undefined' ? + value._id : // documents + value; + + let castNumber; + if (typeof this._castFunction === 'function') { + castNumber = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castNumber = this.constructor.cast(); + } else { + castNumber = SchemaNumber.cast(); + } + + try { + return castNumber(val); + } catch (err) { + throw new CastError('Number', val, this.path, err, this); + } +}; + +/*! + * ignore + */ + +function handleSingle(val) { + return this.cast(val); +} + +function handleArray(val) { + const _this = this; + if (!Array.isArray(val)) { + return [this.cast(val)]; + } + return val.map(function(m) { + return _this.cast(m); + }); +} + +SchemaNumber.prototype.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $bitsAllClear: handleBitwiseOperator, + $bitsAnyClear: handleBitwiseOperator, + $bitsAllSet: handleBitwiseOperator, + $bitsAnySet: handleBitwiseOperator, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle, + $mod: handleArray +}; + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} [value] + * @api private + */ + +SchemaNumber.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + if (!handler) { + throw new CastError('number', val, this.path, null, this); + } + return handler.call(this, val, context); + } + + try { + val = this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } + + return val; +}; + +/*! + * Module exports. + */ + +module.exports = SchemaNumber; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/objectId.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/objectId.js new file mode 100644 index 000000000..cad05198e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/objectId.js @@ -0,0 +1,297 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const SchemaObjectIdOptions = require('../options/schemaObjectIdOptions'); +const SchemaType = require('../schemaType'); +const castObjectId = require('../cast/objectid'); +const getConstructorName = require('../helpers/getConstructorName'); +const oid = require('../types/objectid'); +const isBsonType = require('../helpers/isBsonType'); +const utils = require('../utils'); + +const CastError = SchemaType.CastError; +let Document; + +/** + * ObjectId SchemaType constructor. + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaObjectId(key, options) { + const isKeyHexStr = typeof key === 'string' && key.length === 24 && /^[a-f0-9]+$/i.test(key); + const suppressWarning = options && options.suppressWarning; + if ((isKeyHexStr || typeof key === 'undefined') && !suppressWarning) { + utils.warn('mongoose: To create a new ObjectId please try ' + + '`Mongoose.Types.ObjectId` instead of using ' + + '`Mongoose.Schema.ObjectId`. Set the `suppressWarning` option if ' + + 'you\'re trying to create a hex char path in your schema.'); + } + SchemaType.call(this, key, options, 'ObjectId'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaObjectId.schemaName = 'ObjectId'; + +SchemaObjectId.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaObjectId.prototype = Object.create(SchemaType.prototype); +SchemaObjectId.prototype.constructor = SchemaObjectId; +SchemaObjectId.prototype.OptionsConstructor = SchemaObjectIdOptions; + +/** + * Attaches a getter for all ObjectId instances + * + * #### Example: + * + * // Always convert to string when getting an ObjectId + * mongoose.ObjectId.get(v => v.toString()); + * + * const Model = mongoose.model('Test', new Schema({})); + * typeof (new Model({})._id); // 'string' + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaObjectId.get = SchemaType.get; + +/** + * Sets a default option for all ObjectId instances. + * + * #### Example: + * + * // Make all object ids have option `required` equal to true. + * mongoose.Schema.ObjectId.set('required', true); + * + * const Order = mongoose.model('Order', new Schema({ userId: ObjectId })); + * new Order({ }).validateSync().errors.userId.message; // Path `userId` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaObjectId.set = SchemaType.set; + +SchemaObjectId.setters = []; + +/** + * Adds an auto-generated ObjectId default if turnOn is true. + * @param {Boolean} turnOn auto generated ObjectId defaults + * @api public + * @return {SchemaType} this + */ + +SchemaObjectId.prototype.auto = function(turnOn) { + if (turnOn) { + this.default(defaultId); + this.set(resetId); + } + + return this; +}; + +/*! + * ignore + */ + +SchemaObjectId._checkRequired = v => isBsonType(v, 'ObjectId'); + +/*! + * ignore + */ + +SchemaObjectId._cast = castObjectId; + +/** + * Get/set the function used to cast arbitrary values to objectids. + * + * #### Example: + * + * // Make Mongoose only try to cast length 24 strings. By default, any 12 + * // char string is a valid ObjectId. + * const original = mongoose.ObjectId.cast(); + * mongoose.ObjectId.cast(v => { + * assert.ok(typeof v !== 'string' || v.length === 24); + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.ObjectId.cast(false); + * + * @param {Function} caster + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaObjectId.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaObjectId._defaultCaster = v => { + if (!(isBsonType(v, 'ObjectId'))) { + throw new Error(v + ' is not an instance of ObjectId'); + } + return v; +}; + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * #### Example: + * + * // Allow empty strings to pass `required` check + * mongoose.Schema.Types.String.checkRequired(v => v != null); + * + * const M = mongoose.model({ str: { type: String, required: true } }); + * new M({ str: '' }).validateSync(); // `null`, validation passes! + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaObjectId.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaObjectId.prototype.checkRequired = function checkRequired(value, doc) { + if (SchemaType._isRef(this, value, doc, true)) { + return !!value; + } + + // `require('util').inherits()` does **not** copy static properties, and + // plugins like mongoose-float use `inherits()` for pre-ES6. + const _checkRequired = typeof this.constructor.checkRequired === 'function' ? + this.constructor.checkRequired() : + SchemaObjectId.checkRequired(); + + return _checkRequired(value); +}; + +/** + * Casts to ObjectId + * + * @param {Object} value + * @param {Object} doc + * @param {Boolean} init whether this is an initialization cast + * @api private + */ + +SchemaObjectId.prototype.cast = function(value, doc, init) { + if (!(isBsonType(value, 'ObjectId')) && SchemaType._isRef(this, value, doc, init)) { + // wait! we may need to cast this to a document + if ((getConstructorName(value) || '').toLowerCase() === 'objectid') { + return new oid(value.toHexString()); + } + + if (value == null || utils.isNonBuiltinObject(value)) { + return this._castRef(value, doc, init); + } + } + + let castObjectId; + if (typeof this._castFunction === 'function') { + castObjectId = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castObjectId = this.constructor.cast(); + } else { + castObjectId = SchemaObjectId.cast(); + } + + try { + return castObjectId(value); + } catch (error) { + throw new CastError('ObjectId', value, this.path, error, this); + } +}; + +/*! + * ignore + */ + +function handleSingle(val) { + return this.cast(val); +} + +SchemaObjectId.prototype.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle +}; + +/*! + * ignore + */ + +function defaultId() { + return new oid(); +} + +defaultId.$runBeforeSetters = true; + +function resetId(v) { + Document || (Document = require('../document')); + + if (this instanceof Document) { + if (v === void 0) { + const _v = new oid(); + return _v; + } + } + + return v; +} + +/*! + * Module exports. + */ + +module.exports = SchemaObjectId; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/bitwise.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/bitwise.js new file mode 100644 index 000000000..07e18cd0c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/bitwise.js @@ -0,0 +1,38 @@ +/*! + * Module requirements. + */ + +'use strict'; + +const CastError = require('../../error/cast'); + +/*! + * ignore + */ + +function handleBitwiseOperator(val) { + const _this = this; + if (Array.isArray(val)) { + return val.map(function(v) { + return _castNumber(_this.path, v); + }); + } else if (Buffer.isBuffer(val)) { + return val; + } + // Assume trying to cast to number + return _castNumber(_this.path, val); +} + +/*! + * ignore + */ + +function _castNumber(path, num) { + const v = Number(num); + if (isNaN(v)) { + throw new CastError('number', num, path); + } + return v; +} + +module.exports = handleBitwiseOperator; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/exists.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/exists.js new file mode 100644 index 000000000..916b4cbf6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/exists.js @@ -0,0 +1,12 @@ +'use strict'; + +const castBoolean = require('../../cast/boolean'); + +/*! + * ignore + */ + +module.exports = function(val) { + const path = this != null ? this.path : null; + return castBoolean(val, path); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/geospatial.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/geospatial.js new file mode 100644 index 000000000..75feda602 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/geospatial.js @@ -0,0 +1,107 @@ +/*! + * Module requirements. + */ + +'use strict'; + +const castArraysOfNumbers = require('./helpers').castArraysOfNumbers; +const castToNumber = require('./helpers').castToNumber; + +/*! + * ignore + */ + +exports.cast$geoIntersects = cast$geoIntersects; +exports.cast$near = cast$near; +exports.cast$within = cast$within; + +function cast$near(val) { + const SchemaArray = require('../array'); + + if (Array.isArray(val)) { + castArraysOfNumbers(val, this); + return val; + } + + _castMinMaxDistance(this, val); + + if (val && val.$geometry) { + return cast$geometry(val, this); + } + + if (!Array.isArray(val)) { + throw new TypeError('$near must be either an array or an object ' + + 'with a $geometry property'); + } + + return SchemaArray.prototype.castForQuery.call(this, null, val); +} + +function cast$geometry(val, self) { + switch (val.$geometry.type) { + case 'Polygon': + case 'LineString': + case 'Point': + castArraysOfNumbers(val.$geometry.coordinates, self); + break; + default: + // ignore unknowns + break; + } + + _castMinMaxDistance(self, val); + + return val; +} + +function cast$within(val) { + _castMinMaxDistance(this, val); + + if (val.$box || val.$polygon) { + const type = val.$box ? '$box' : '$polygon'; + val[type].forEach(arr => { + if (!Array.isArray(arr)) { + const msg = 'Invalid $within $box argument. ' + + 'Expected an array, received ' + arr; + throw new TypeError(msg); + } + arr.forEach((v, i) => { + arr[i] = castToNumber.call(this, v); + }); + }); + } else if (val.$center || val.$centerSphere) { + const type = val.$center ? '$center' : '$centerSphere'; + val[type].forEach((item, i) => { + if (Array.isArray(item)) { + item.forEach((v, j) => { + item[j] = castToNumber.call(this, v); + }); + } else { + val[type][i] = castToNumber.call(this, item); + } + }); + } else if (val.$geometry) { + cast$geometry(val, this); + } + + return val; +} + +function cast$geoIntersects(val) { + const geo = val.$geometry; + if (!geo) { + return; + } + + cast$geometry(val, this); + return val; +} + +function _castMinMaxDistance(self, val) { + if (val.$maxDistance) { + val.$maxDistance = castToNumber.call(self, val.$maxDistance); + } + if (val.$minDistance) { + val.$minDistance = castToNumber.call(self, val.$minDistance); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/helpers.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/helpers.js new file mode 100644 index 000000000..4690ca3c5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/helpers.js @@ -0,0 +1,32 @@ +'use strict'; + +/*! + * Module requirements. + */ + +const SchemaNumber = require('../number'); + +/*! + * ignore + */ + +exports.castToNumber = castToNumber; +exports.castArraysOfNumbers = castArraysOfNumbers; + +/*! + * ignore + */ + +function castToNumber(val) { + return SchemaNumber.cast()(val); +} + +function castArraysOfNumbers(arr, self) { + arr.forEach(function(v, i) { + if (Array.isArray(v)) { + castArraysOfNumbers(v, self); + } else { + arr[i] = castToNumber.call(self, v); + } + }); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/text.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/text.js new file mode 100644 index 000000000..81e8fa21b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/text.js @@ -0,0 +1,39 @@ +'use strict'; + +const CastError = require('../../error/cast'); +const castBoolean = require('../../cast/boolean'); +const castString = require('../../cast/string'); + +/** + * Casts val to an object suitable for `$text`. Throws an error if the object + * can't be casted. + * + * @param {Any} val value to cast + * @param {String} [path] path to associate with any errors that occured + * @return {Object} casted object + * @see https://www.mongodb.com/docs/manual/reference/operator/query/text/ + * @api private + */ + +module.exports = function(val, path) { + if (val == null || typeof val !== 'object') { + throw new CastError('$text', val, path); + } + + if (val.$search != null) { + val.$search = castString(val.$search, path + '.$search'); + } + if (val.$language != null) { + val.$language = castString(val.$language, path + '.$language'); + } + if (val.$caseSensitive != null) { + val.$caseSensitive = castBoolean(val.$caseSensitive, + path + '.$castSensitive'); + } + if (val.$diacriticSensitive != null) { + val.$diacriticSensitive = castBoolean(val.$diacriticSensitive, + path + '.$diacriticSensitive'); + } + + return val; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/type.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/type.js new file mode 100644 index 000000000..952c79007 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/operators/type.js @@ -0,0 +1,20 @@ +'use strict'; + +/*! + * ignore + */ + +module.exports = function(val) { + if (Array.isArray(val)) { + if (!val.every(v => typeof v === 'number' || typeof v === 'string')) { + throw new Error('$type array values must be strings or numbers'); + } + return val; + } + + if (typeof val !== 'number' && typeof val !== 'string') { + throw new Error('$type parameter must be number, string, or array of numbers and strings'); + } + + return val; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/string.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/string.js new file mode 100644 index 000000000..e7eed1c4f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/string.js @@ -0,0 +1,705 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const SchemaType = require('../schemaType'); +const MongooseError = require('../error/index'); +const SchemaStringOptions = require('../options/schemaStringOptions'); +const castString = require('../cast/string'); +const utils = require('../utils'); +const isBsonType = require('../helpers/isBsonType'); + +const CastError = SchemaType.CastError; + +/** + * String SchemaType constructor. + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaString(key, options) { + this.enumValues = []; + this.regExp = null; + SchemaType.call(this, key, options, 'String'); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaString.schemaName = 'String'; + +SchemaString.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaString.prototype = Object.create(SchemaType.prototype); +SchemaString.prototype.constructor = SchemaString; +Object.defineProperty(SchemaString.prototype, 'OptionsConstructor', { + configurable: false, + enumerable: false, + writable: false, + value: SchemaStringOptions +}); + +/*! + * ignore + */ + +SchemaString._cast = castString; + +/** + * Get/set the function used to cast arbitrary values to strings. + * + * #### Example: + * + * // Throw an error if you pass in an object. Normally, Mongoose allows + * // objects with custom `toString()` functions. + * const original = mongoose.Schema.Types.String.cast(); + * mongoose.Schema.Types.String.cast(v => { + * assert.ok(v == null || typeof v !== 'object'); + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.Schema.Types.String.cast(false); + * + * @param {Function} caster + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaString.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaString._defaultCaster = v => { + if (v != null && typeof v !== 'string') { + throw new Error(); + } + return v; +}; + +/** + * Attaches a getter for all String instances. + * + * #### Example: + * + * // Make all numbers round down + * mongoose.Schema.String.get(v => v.toLowerCase()); + * + * const Model = mongoose.model('Test', new Schema({ test: String })); + * new Model({ test: 'FOO' }).test; // 'foo' + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaString.get = SchemaType.get; + +/** + * Sets a default option for all String instances. + * + * #### Example: + * + * // Make all strings have option `trim` equal to true. + * mongoose.Schema.String.set('trim', true); + * + * const User = mongoose.model('User', new Schema({ name: String })); + * new User({ name: ' John Doe ' }).name; // 'John Doe' + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaString.set = SchemaType.set; + +SchemaString.setters = []; + +/*! + * ignore + */ + +SchemaString._checkRequired = v => (v instanceof String || typeof v === 'string') && v.length; + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * #### Example: + * + * // Allow empty strings to pass `required` check + * mongoose.Schema.Types.String.checkRequired(v => v != null); + * + * const M = mongoose.model({ str: { type: String, required: true } }); + * new M({ str: '' }).validateSync(); // `null`, validation passes! + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaString.checkRequired = SchemaType.checkRequired; + +/** + * Adds an enum validator + * + * #### Example: + * + * const states = ['opening', 'open', 'closing', 'closed'] + * const s = new Schema({ state: { type: String, enum: states }}) + * const M = db.model('M', s) + * const m = new M({ state: 'invalid' }) + * m.save(function (err) { + * console.error(String(err)) // ValidationError: `invalid` is not a valid enum value for path `state`. + * m.state = 'open' + * m.save(callback) // success + * }) + * + * // or with custom error messages + * const enum = { + * values: ['opening', 'open', 'closing', 'closed'], + * message: 'enum validator failed for path `{PATH}` with value `{VALUE}`' + * } + * const s = new Schema({ state: { type: String, enum: enum }) + * const M = db.model('M', s) + * const m = new M({ state: 'invalid' }) + * m.save(function (err) { + * console.error(String(err)) // ValidationError: enum validator failed for path `state` with value `invalid` + * m.state = 'open' + * m.save(callback) // success + * }) + * + * @param {...String|Object} [args] enumeration values + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @see Enums in JavaScript https://masteringjs.io/tutorials/fundamentals/enum + * @api public + */ + +SchemaString.prototype.enum = function() { + if (this.enumValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.enumValidator; + }, this); + this.enumValidator = false; + } + + if (arguments[0] === void 0 || arguments[0] === false) { + return this; + } + + let values; + let errorMessage; + + if (utils.isObject(arguments[0])) { + if (Array.isArray(arguments[0].values)) { + values = arguments[0].values; + errorMessage = arguments[0].message; + } else { + values = utils.object.vals(arguments[0]); + errorMessage = MongooseError.messages.String.enum; + } + } else { + values = arguments; + errorMessage = MongooseError.messages.String.enum; + } + + for (const value of values) { + if (value !== undefined) { + this.enumValues.push(this.cast(value)); + } + } + + const vals = this.enumValues; + this.enumValidator = function(v) { + return null == v || ~vals.indexOf(v); + }; + this.validators.push({ + validator: this.enumValidator, + message: errorMessage, + type: 'enum', + enumValues: vals + }); + + return this; +}; + +/** + * Adds a lowercase [setter](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.set()). + * + * #### Example: + * + * const s = new Schema({ email: { type: String, lowercase: true }}) + * const M = db.model('M', s); + * const m = new M({ email: 'SomeEmail@example.COM' }); + * console.log(m.email) // someemail@example.com + * M.find({ email: 'SomeEmail@example.com' }); // Queries by 'someemail@example.com' + * + * Note that `lowercase` does **not** affect regular expression queries: + * + * #### Example: + * + * // Still queries for documents whose `email` matches the regular + * // expression /SomeEmail/. Mongoose does **not** convert the RegExp + * // to lowercase. + * M.find({ email: /SomeEmail/ }); + * + * @api public + * @return {SchemaType} this + */ + +SchemaString.prototype.lowercase = function(shouldApply) { + if (arguments.length > 0 && !shouldApply) { + return this; + } + return this.set(v => { + if (typeof v !== 'string') { + v = this.cast(v); + } + if (v) { + return v.toLowerCase(); + } + return v; + }); +}; + +/** + * Adds an uppercase [setter](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.set()). + * + * #### Example: + * + * const s = new Schema({ caps: { type: String, uppercase: true }}) + * const M = db.model('M', s); + * const m = new M({ caps: 'an example' }); + * console.log(m.caps) // AN EXAMPLE + * M.find({ caps: 'an example' }) // Matches documents where caps = 'AN EXAMPLE' + * + * Note that `uppercase` does **not** affect regular expression queries: + * + * #### Example: + * + * // Mongoose does **not** convert the RegExp to uppercase. + * M.find({ email: /an example/ }); + * + * @api public + * @return {SchemaType} this + */ + +SchemaString.prototype.uppercase = function(shouldApply) { + if (arguments.length > 0 && !shouldApply) { + return this; + } + return this.set(v => { + if (typeof v !== 'string') { + v = this.cast(v); + } + if (v) { + return v.toUpperCase(); + } + return v; + }); +}; + +/** + * Adds a trim [setter](https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.set()). + * + * The string value will be [trimmed](https://masteringjs.io/tutorials/fundamentals/trim-string) when set. + * + * #### Example: + * + * const s = new Schema({ name: { type: String, trim: true }}); + * const M = db.model('M', s); + * const string = ' some name '; + * console.log(string.length); // 11 + * const m = new M({ name: string }); + * console.log(m.name.length); // 9 + * + * // Equivalent to `findOne({ name: string.trim() })` + * M.findOne({ name: string }); + * + * Note that `trim` does **not** affect regular expression queries: + * + * #### Example: + * + * // Mongoose does **not** trim whitespace from the RegExp. + * M.find({ name: / some name / }); + * + * @api public + * @return {SchemaType} this + */ + +SchemaString.prototype.trim = function(shouldTrim) { + if (arguments.length > 0 && !shouldTrim) { + return this; + } + return this.set(v => { + if (typeof v !== 'string') { + v = this.cast(v); + } + if (v) { + return v.trim(); + } + return v; + }); +}; + +/** + * Sets a minimum length validator. + * + * #### Example: + * + * const schema = new Schema({ postalCode: { type: String, minlength: 5 }) + * const Address = db.model('Address', schema) + * const address = new Address({ postalCode: '9512' }) + * address.save(function (err) { + * console.error(err) // validator error + * address.postalCode = '95125'; + * address.save() // success + * }) + * + * // custom error messages + * // We can also use the special {MINLENGTH} token which will be replaced with the minimum allowed length + * const minlength = [5, 'The value of path `{PATH}` (`{VALUE}`) is shorter than the minimum allowed length ({MINLENGTH}).']; + * const schema = new Schema({ postalCode: { type: String, minlength: minlength }) + * const Address = mongoose.model('Address', schema); + * const address = new Address({ postalCode: '9512' }); + * address.validate(function (err) { + * console.log(String(err)) // ValidationError: The value of path `postalCode` (`9512`) is shorter than the minimum length (5). + * }) + * + * @param {Number} value minimum string length + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaString.prototype.minlength = function(value, message) { + if (this.minlengthValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.minlengthValidator; + }, this); + } + + if (value !== null && value !== undefined) { + let msg = message || MongooseError.messages.String.minlength; + msg = msg.replace(/{MINLENGTH}/, value); + this.validators.push({ + validator: this.minlengthValidator = function(v) { + return v === null || v.length >= value; + }, + message: msg, + type: 'minlength', + minlength: value + }); + } + + return this; +}; + +SchemaString.prototype.minLength = SchemaString.prototype.minlength; + +/** + * Sets a maximum length validator. + * + * #### Example: + * + * const schema = new Schema({ postalCode: { type: String, maxlength: 9 }) + * const Address = db.model('Address', schema) + * const address = new Address({ postalCode: '9512512345' }) + * address.save(function (err) { + * console.error(err) // validator error + * address.postalCode = '95125'; + * address.save() // success + * }) + * + * // custom error messages + * // We can also use the special {MAXLENGTH} token which will be replaced with the maximum allowed length + * const maxlength = [9, 'The value of path `{PATH}` (`{VALUE}`) exceeds the maximum allowed length ({MAXLENGTH}).']; + * const schema = new Schema({ postalCode: { type: String, maxlength: maxlength }) + * const Address = mongoose.model('Address', schema); + * const address = new Address({ postalCode: '9512512345' }); + * address.validate(function (err) { + * console.log(String(err)) // ValidationError: The value of path `postalCode` (`9512512345`) exceeds the maximum allowed length (9). + * }) + * + * @param {Number} value maximum string length + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaString.prototype.maxlength = function(value, message) { + if (this.maxlengthValidator) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.maxlengthValidator; + }, this); + } + + if (value !== null && value !== undefined) { + let msg = message || MongooseError.messages.String.maxlength; + msg = msg.replace(/{MAXLENGTH}/, value); + this.validators.push({ + validator: this.maxlengthValidator = function(v) { + return v === null || v.length <= value; + }, + message: msg, + type: 'maxlength', + maxlength: value + }); + } + + return this; +}; + +SchemaString.prototype.maxLength = SchemaString.prototype.maxlength; + +/** + * Sets a regexp validator. + * + * Any value that does not pass `regExp`.test(val) will fail validation. + * + * #### Example: + * + * const s = new Schema({ name: { type: String, match: /^a/ }}) + * const M = db.model('M', s) + * const m = new M({ name: 'I am invalid' }) + * m.validate(function (err) { + * console.error(String(err)) // "ValidationError: Path `name` is invalid (I am invalid)." + * m.name = 'apples' + * m.validate(function (err) { + * assert.ok(err) // success + * }) + * }) + * + * // using a custom error message + * const match = [ /\.html$/, "That file doesn't end in .html ({VALUE})" ]; + * const s = new Schema({ file: { type: String, match: match }}) + * const M = db.model('M', s); + * const m = new M({ file: 'invalid' }); + * m.validate(function (err) { + * console.log(String(err)) // "ValidationError: That file doesn't end in .html (invalid)" + * }) + * + * Empty strings, `undefined`, and `null` values always pass the match validator. If you require these values, enable the `required` validator also. + * + * const s = new Schema({ name: { type: String, match: /^a/, required: true }}) + * + * @param {RegExp} regExp regular expression to test against + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @api public + */ + +SchemaString.prototype.match = function match(regExp, message) { + // yes, we allow multiple match validators + + const msg = message || MongooseError.messages.String.match; + + const matchValidator = function(v) { + if (!regExp) { + return false; + } + + // In case RegExp happens to have `/g` flag set, we need to reset the + // `lastIndex`, otherwise `match` will intermittently fail. + regExp.lastIndex = 0; + + const ret = ((v != null && v !== '') + ? regExp.test(v) + : true); + return ret; + }; + + this.validators.push({ + validator: matchValidator, + message: msg, + type: 'regexp', + regexp: regExp + }); + return this; +}; + +/** + * Check if the given value satisfies the `required` validator. The value is + * considered valid if it is a string (that is, not `null` or `undefined`) and + * has positive length. The `required` validator **will** fail for empty + * strings. + * + * @param {Any} value + * @param {Document} doc + * @return {Boolean} + * @api public + */ + +SchemaString.prototype.checkRequired = function checkRequired(value, doc) { + if (typeof value === 'object' && SchemaType._isRef(this, value, doc, true)) { + return value != null; + } + + // `require('util').inherits()` does **not** copy static properties, and + // plugins like mongoose-float use `inherits()` for pre-ES6. + const _checkRequired = typeof this.constructor.checkRequired === 'function' ? + this.constructor.checkRequired() : + SchemaString.checkRequired(); + + return _checkRequired(value); +}; + +/** + * Casts to String + * + * @api private + */ + +SchemaString.prototype.cast = function(value, doc, init) { + if (typeof value !== 'string' && SchemaType._isRef(this, value, doc, init)) { + return this._castRef(value, doc, init); + } + + let castString; + if (typeof this._castFunction === 'function') { + castString = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castString = this.constructor.cast(); + } else { + castString = SchemaString.cast(); + } + + try { + return castString(value); + } catch (error) { + throw new CastError('string', value, this.path, null, this); + } +}; + +/*! + * ignore + */ + +function handleSingle(val, context) { + return this.castForQuery(null, val, context); +} + +/*! + * ignore + */ + +function handleArray(val, context) { + const _this = this; + if (!Array.isArray(val)) { + return [this.castForQuery(null, val, context)]; + } + return val.map(function(m) { + return _this.castForQuery(null, m, context); + }); +} + +/*! + * ignore + */ + +function handleSingleNoSetters(val) { + if (val == null) { + return this._castNullish(val); + } + + return this.cast(val, this); +} + +const $conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $all: handleArray, + $gt: handleSingle, + $gte: handleSingle, + $lt: handleSingle, + $lte: handleSingle, + $options: handleSingleNoSetters, + $regex: function handle$regex(val) { + if (Object.prototype.toString.call(val) === '[object RegExp]') { + return val; + } + + return handleSingleNoSetters.call(this, val); + }, + $not: handleSingle +}; + +Object.defineProperty(SchemaString.prototype, '$conditionalHandlers', { + configurable: false, + enumerable: false, + writable: false, + value: Object.freeze($conditionalHandlers) +}); + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} [val] + * @api private + */ + +SchemaString.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + if (!handler) { + throw new Error('Can\'t use ' + $conditional + ' with String.'); + } + return handler.call(this, val, context); + } + + if (Object.prototype.toString.call(val) === '[object RegExp]' || isBsonType(val, 'BSONRegExp')) { + return val; + } + + try { + return this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } +}; + +/*! + * Module exports. + */ + +module.exports = SchemaString; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/subdocument.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/subdocument.js new file mode 100644 index 000000000..5116ed0cf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/subdocument.js @@ -0,0 +1,397 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const CastError = require('../error/cast'); +const EventEmitter = require('events').EventEmitter; +const ObjectExpectedError = require('../error/objectExpected'); +const SchemaSubdocumentOptions = require('../options/schemaSubdocumentOptions'); +const SchemaType = require('../schemaType'); +const applyDefaults = require('../helpers/document/applyDefaults'); +const $exists = require('./operators/exists'); +const castToNumber = require('./operators/helpers').castToNumber; +const discriminator = require('../helpers/model/discriminator'); +const geospatial = require('./operators/geospatial'); +const getConstructor = require('../helpers/discriminator/getConstructor'); +const handleIdOption = require('../helpers/schema/handleIdOption'); +const internalToObjectOptions = require('../options').internalToObjectOptions; +const isExclusive = require('../helpers/projection/isExclusive'); +const utils = require('../utils'); +const InvalidSchemaOptionError = require('../error/invalidSchemaOption'); + +let SubdocumentType; + +module.exports = SchemaSubdocument; + +/** + * Single nested subdocument SchemaType constructor. + * + * @param {Schema} schema + * @param {String} path + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaSubdocument(schema, path, options) { + if (schema.options.timeseries) { + throw new InvalidSchemaOptionError(path, 'timeseries'); + } + const schemaTypeIdOption = SchemaSubdocument.defaultOptions && + SchemaSubdocument.defaultOptions._id; + if (schemaTypeIdOption != null) { + options = options || {}; + options._id = schemaTypeIdOption; + } + + schema = handleIdOption(schema, options); + + this.caster = _createConstructor(schema, null, options); + this.caster.path = path; + this.caster.prototype.$basePath = path; + this.schema = schema; + this.$isSingleNested = true; + this.base = schema.base; + SchemaType.call(this, path, options, 'Embedded'); +} + +/*! + * ignore + */ + +SchemaSubdocument.prototype = Object.create(SchemaType.prototype); +SchemaSubdocument.prototype.constructor = SchemaSubdocument; +SchemaSubdocument.prototype.OptionsConstructor = SchemaSubdocumentOptions; + +/*! + * ignore + */ + +function _createConstructor(schema, baseClass, options) { + // lazy load + SubdocumentType || (SubdocumentType = require('../types/subdocument')); + + const _embedded = function SingleNested(value, path, parent) { + this.$__parent = parent; + SubdocumentType.apply(this, arguments); + + if (parent == null) { + return; + } + this.$session(parent.$session()); + }; + + schema._preCompile(); + + const proto = baseClass != null ? baseClass.prototype : SubdocumentType.prototype; + _embedded.prototype = Object.create(proto); + _embedded.prototype.$__setSchema(schema); + _embedded.prototype.constructor = _embedded; + _embedded.$__required = options?.required; + _embedded.base = schema.base; + _embedded.schema = schema; + _embedded.$isSingleNested = true; + _embedded.events = new EventEmitter(); + _embedded.prototype.toBSON = function() { + return this.toObject(internalToObjectOptions); + }; + + // apply methods + for (const i in schema.methods) { + _embedded.prototype[i] = schema.methods[i]; + } + + // apply statics + for (const i in schema.statics) { + _embedded[i] = schema.statics[i]; + } + + for (const i in EventEmitter.prototype) { + _embedded[i] = EventEmitter.prototype[i]; + } + + return _embedded; +} + +/** + * Special case for when users use a common location schema to represent + * locations for use with $geoWithin. + * https://www.mongodb.com/docs/manual/reference/operator/query/geoWithin/ + * + * @param {Object} val + * @api private + */ + +SchemaSubdocument.prototype.$conditionalHandlers.$geoWithin = function handle$geoWithin(val, context) { + return { $geometry: this.castForQuery(null, val.$geometry, context) }; +}; + +/*! + * ignore + */ + +SchemaSubdocument.prototype.$conditionalHandlers.$near = +SchemaSubdocument.prototype.$conditionalHandlers.$nearSphere = geospatial.cast$near; + +SchemaSubdocument.prototype.$conditionalHandlers.$within = +SchemaSubdocument.prototype.$conditionalHandlers.$geoWithin = geospatial.cast$within; + +SchemaSubdocument.prototype.$conditionalHandlers.$geoIntersects = + geospatial.cast$geoIntersects; + +SchemaSubdocument.prototype.$conditionalHandlers.$minDistance = castToNumber; +SchemaSubdocument.prototype.$conditionalHandlers.$maxDistance = castToNumber; + +SchemaSubdocument.prototype.$conditionalHandlers.$exists = $exists; + +/** + * Casts contents + * + * @param {Object} value + * @api private + */ + +SchemaSubdocument.prototype.cast = function(val, doc, init, priorVal, options) { + if (val && val.$isSingleNested && val.parent === doc) { + return val; + } + + if (val != null && (typeof val !== 'object' || Array.isArray(val))) { + throw new ObjectExpectedError(this.path, val); + } + + const discriminatorKeyPath = this.schema.path(this.schema.options.discriminatorKey); + const defaultDiscriminatorValue = discriminatorKeyPath == null ? null : discriminatorKeyPath.getDefault(doc); + const Constructor = getConstructor(this.caster, val, defaultDiscriminatorValue); + + let subdoc; + + // Only pull relevant selected paths and pull out the base path + const parentSelected = doc && doc.$__ && doc.$__.selected; + const path = this.path; + const selected = parentSelected == null ? null : Object.keys(parentSelected).reduce((obj, key) => { + if (key.startsWith(path + '.')) { + obj = obj || {}; + obj[key.substring(path.length + 1)] = parentSelected[key]; + } + return obj; + }, null); + if (init) { + subdoc = new Constructor(void 0, selected, doc, false, { defaults: false }); + delete subdoc.$__.defaults; + subdoc.$init(val); + const exclude = isExclusive(selected); + applyDefaults(subdoc, selected, exclude); + } else { + options = Object.assign({}, options, { priorDoc: priorVal }); + if (Object.keys(val).length === 0) { + return new Constructor({}, selected, doc, undefined, options); + } + + return new Constructor(val, selected, doc, undefined, options); + } + + return subdoc; +}; + +/** + * Casts contents for query + * + * @param {string} [$conditional] optional query operator (like `$eq` or `$in`) + * @param {any} value + * @api private + */ + +SchemaSubdocument.prototype.castForQuery = function($conditional, val, context, options) { + let handler; + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + if (!handler) { + throw new Error('Can\'t use ' + $conditional); + } + return handler.call(this, val); + } + if (val == null) { + return val; + } + + const Constructor = getConstructor(this.caster, val); + if (val instanceof Constructor) { + return val; + } + + if (this.options.runSetters) { + val = this._applySetters(val, context); + } + + const overrideStrict = options != null && options.strict != null ? + options.strict : + void 0; + + try { + val = new Constructor(val, overrideStrict); + } catch (error) { + // Make sure we always wrap in a CastError (gh-6803) + if (!(error instanceof CastError)) { + throw new CastError('Embedded', val, this.path, error, this); + } + throw error; + } + return val; +}; + +/** + * Async validation on this single nested doc. + * + * @api private + */ + +SchemaSubdocument.prototype.doValidate = function(value, fn, scope, options) { + const Constructor = getConstructor(this.caster, value); + + if (value && !(value instanceof Constructor)) { + value = new Constructor(value, null, (scope != null && scope.$__ != null) ? scope : null); + } + + if (options && options.skipSchemaValidators) { + if (!value) { + return fn(null); + } + return value.validate().then(() => fn(null), err => fn(err)); + } + + SchemaType.prototype.doValidate.call(this, value, function(error) { + if (error) { + return fn(error); + } + if (!value) { + return fn(null); + } + + value.validate().then(() => fn(null), err => fn(err)); + }, scope, options); +}; + +/** + * Synchronously validate this single nested doc + * + * @api private + */ + +SchemaSubdocument.prototype.doValidateSync = function(value, scope, options) { + if (!options || !options.skipSchemaValidators) { + const schemaTypeError = SchemaType.prototype.doValidateSync.call(this, value, scope); + if (schemaTypeError) { + return schemaTypeError; + } + } + if (!value) { + return; + } + return value.validateSync(); +}; + +/** + * Adds a discriminator to this single nested subdocument. + * + * #### Example: + * + * const shapeSchema = Schema({ name: String }, { discriminatorKey: 'kind' }); + * const schema = Schema({ shape: shapeSchema }); + * + * const singleNestedPath = parentSchema.path('shape'); + * singleNestedPath.discriminator('Circle', Schema({ radius: Number })); + * + * @param {String} name + * @param {Schema} schema fields to add to the schema for instances of this sub-class + * @param {Object|string} [options] If string, same as `options.value`. + * @param {String} [options.value] the string stored in the `discriminatorKey` property. If not specified, Mongoose uses the `name` parameter. + * @param {Boolean} [options.clone=true] By default, `discriminator()` clones the given `schema`. Set to `false` to skip cloning. + * @return {Function} the constructor Mongoose will use for creating instances of this discriminator model + * @see discriminators https://mongoosejs.com/docs/discriminators.html + * @api public + */ + +SchemaSubdocument.prototype.discriminator = function(name, schema, options) { + options = options || {}; + const value = utils.isPOJO(options) ? options.value : options; + const clone = typeof options.clone === 'boolean' + ? options.clone + : true; + + if (schema.instanceOfSchema && clone) { + schema = schema.clone(); + } + + schema = discriminator(this.caster, name, schema, value, null, null, options.overwriteExisting); + + this.caster.discriminators[name] = _createConstructor(schema, this.caster); + + return this.caster.discriminators[name]; +}; + +/*! + * ignore + */ + +SchemaSubdocument.defaultOptions = {}; + +/** + * Sets a default option for all Subdocument instances. + * + * #### Example: + * + * // Make all numbers have option `min` equal to 0. + * mongoose.Schema.Subdocument.set('required', true); + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {void} + * @function set + * @static + * @api public + */ + +SchemaSubdocument.set = SchemaType.set; + +SchemaSubdocument.setters = []; + +/** + * Attaches a getter for all Subdocument instances + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaSubdocument.get = SchemaType.get; + +/*! + * ignore + */ + +SchemaSubdocument.prototype.toJSON = function toJSON() { + return { path: this.path, options: this.options }; +}; + +/*! + * ignore + */ + +SchemaSubdocument.prototype.clone = function() { + const schematype = new this.constructor( + this.schema, + this.path, + { ...this.options, _skipApplyDiscriminators: true } + ); + schematype.validators = this.validators.slice(); + if (this.requiredValidator !== undefined) { + schematype.requiredValidator = this.requiredValidator; + } + schematype.caster.discriminators = Object.assign({}, this.caster.discriminators); + return schematype; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/symbols.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/symbols.js new file mode 100644 index 000000000..7ae0e9e38 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/symbols.js @@ -0,0 +1,5 @@ +'use strict'; + +exports.schemaMixedSymbol = Symbol.for('mongoose:schema_mixed'); + +exports.builtInMiddleware = Symbol.for('mongoose:built-in-middleware'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/uuid.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/uuid.js new file mode 100644 index 000000000..aa72c4210 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schema/uuid.js @@ -0,0 +1,363 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const MongooseBuffer = require('../types/buffer'); +const SchemaType = require('../schemaType'); +const CastError = SchemaType.CastError; +const utils = require('../utils'); +const handleBitwiseOperator = require('./operators/bitwise'); + +const UUID_FORMAT = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/i; +const Binary = MongooseBuffer.Binary; + +/** + * Helper function to convert the input hex-string to a buffer + * @param {String} hex The hex string to convert + * @returns {Buffer} The hex as buffer + * @api private + */ + +function hex2buffer(hex) { + // use buffer built-in function to convert from hex-string to buffer + const buff = hex != null && Buffer.from(hex, 'hex'); + return buff; +} + +/** + * Helper function to convert the buffer input to a string + * @param {Buffer} buf The buffer to convert to a hex-string + * @returns {String} The buffer as a hex-string + * @api private + */ + +function binary2hex(buf) { + // use buffer built-in function to convert from buffer to hex-string + const hex = buf != null && buf.toString('hex'); + return hex; +} + +/** + * Convert a String to Binary + * @param {String} uuidStr The value to process + * @returns {MongooseBuffer} The binary to store + * @api private + */ + +function stringToBinary(uuidStr) { + // Protect against undefined & throwing err + if (typeof uuidStr !== 'string') uuidStr = ''; + const hex = uuidStr.replace(/[{}-]/g, ''); // remove extra characters + const bytes = hex2buffer(hex); + const buff = new MongooseBuffer(bytes); + buff._subtype = 4; + + return buff; +} + +/** + * Convert binary to a uuid string + * @param {Buffer|Binary|String} uuidBin The value to process + * @returns {String} The completed uuid-string + * @api private + */ +function binaryToString(uuidBin) { + // i(hasezoey) dont quite know why, but "uuidBin" may sometimes also be the already processed string + let hex; + if (typeof uuidBin !== 'string' && uuidBin != null) { + hex = binary2hex(uuidBin); + const uuidStr = hex.substring(0, 8) + '-' + hex.substring(8, 8 + 4) + '-' + hex.substring(12, 12 + 4) + '-' + hex.substring(16, 16 + 4) + '-' + hex.substring(20, 20 + 12); + return uuidStr; + } + return uuidBin; +} + +/** + * UUIDv1 SchemaType constructor. + * + * @param {String} key + * @param {Object} options + * @inherits SchemaType + * @api public + */ + +function SchemaUUID(key, options) { + SchemaType.call(this, key, options, 'UUID'); + this.getters.push(function(value) { + // For populated + if (value != null && value.$__ != null) { + return value; + } + return binaryToString(value); + }); +} + +/** + * This schema type's name, to defend against minifiers that mangle + * function names. + * + * @api public + */ +SchemaUUID.schemaName = 'UUID'; + +SchemaUUID.defaultOptions = {}; + +/*! + * Inherits from SchemaType. + */ +SchemaUUID.prototype = Object.create(SchemaType.prototype); +SchemaUUID.prototype.constructor = SchemaUUID; + +/*! + * ignore + */ + +SchemaUUID._cast = function(value) { + if (value == null) { + return value; + } + + function newBuffer(initbuff) { + const buff = new MongooseBuffer(initbuff); + buff._subtype = 4; + return buff; + } + + if (typeof value === 'string') { + if (UUID_FORMAT.test(value)) { + return stringToBinary(value); + } else { + throw new CastError(SchemaUUID.schemaName, value, this.path); + } + } + + if (Buffer.isBuffer(value)) { + return newBuffer(value); + } + + if (value instanceof Binary) { + return newBuffer(value.value(true)); + } + + // Re: gh-647 and gh-3030, we're ok with casting using `toString()` + // **unless** its the default Object.toString, because "[object Object]" + // doesn't really qualify as useful data + if (value.toString && value.toString !== Object.prototype.toString) { + if (UUID_FORMAT.test(value.toString())) { + return stringToBinary(value.toString()); + } + } + + throw new CastError(SchemaUUID.schemaName, value, this.path); +}; + +/** + * Attaches a getter for all UUID instances. + * + * #### Example: + * + * // Note that `v` is a string by default + * mongoose.Schema.UUID.get(v => v.toUpperCase()); + * + * const Model = mongoose.model('Test', new Schema({ test: 'UUID' })); + * new Model({ test: uuid.v4() }).test; // UUID with all uppercase + * + * @param {Function} getter + * @return {this} + * @function get + * @static + * @api public + */ + +SchemaUUID.get = SchemaType.get; + +/** + * Sets a default option for all UUID instances. + * + * #### Example: + * + * // Make all UUIDs have `required` of true by default. + * mongoose.Schema.UUID.set('required', true); + * + * const User = mongoose.model('User', new Schema({ test: mongoose.UUID })); + * new User({ }).validateSync().errors.test.message; // Path `test` is required. + * + * @param {String} option The option you'd like to set the value for + * @param {Any} value value for option + * @return {undefined} + * @function set + * @static + * @api public + */ + +SchemaUUID.set = SchemaType.set; + +SchemaUUID.setters = []; + +/** + * Get/set the function used to cast arbitrary values to UUIDs. + * + * #### Example: + * + * // Make Mongoose refuse to cast UUIDs with 0 length + * const original = mongoose.Schema.Types.UUID.cast(); + * mongoose.UUID.cast(v => { + * assert.ok(typeof v === "string" && v.length > 0); + * return original(v); + * }); + * + * // Or disable casting entirely + * mongoose.UUID.cast(false); + * + * @param {Function} [caster] + * @return {Function} + * @function get + * @static + * @api public + */ + +SchemaUUID.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = this._defaultCaster; + } + this._cast = caster; + + return this._cast; +}; + +/*! + * ignore + */ + +SchemaUUID._checkRequired = v => v != null; + +/** + * Override the function the required validator uses to check whether a string + * passes the `required` check. + * + * @param {Function} fn + * @return {Function} + * @function checkRequired + * @static + * @api public + */ + +SchemaUUID.checkRequired = SchemaType.checkRequired; + +/** + * Check if the given value satisfies a required validator. + * + * @param {Any} value + * @return {Boolean} + * @api public + */ + +SchemaUUID.prototype.checkRequired = function checkRequired(value) { + if (Buffer.isBuffer(value)) { + value = binaryToString(value); + } + return value != null && UUID_FORMAT.test(value); +}; + +/** + * Casts to UUID + * + * @param {Object} value + * @param {Object} doc + * @param {Boolean} init whether this is an initialization cast + * @api private + */ + +SchemaUUID.prototype.cast = function(value, doc, init) { + if (utils.isNonBuiltinObject(value) && + SchemaType._isRef(this, value, doc, init)) { + return this._castRef(value, doc, init); + } + + let castFn; + if (typeof this._castFunction === 'function') { + castFn = this._castFunction; + } else if (typeof this.constructor.cast === 'function') { + castFn = this.constructor.cast(); + } else { + castFn = SchemaUUID.cast(); + } + + try { + return castFn(value); + } catch (error) { + throw new CastError(SchemaUUID.schemaName, value, this.path, error, this); + } +}; + +/*! + * ignore + */ + +function handleSingle(val) { + return this.cast(val); +} + +/*! + * ignore + */ + +function handleArray(val) { + return val.map((m) => { + return this.cast(m); + }); +} + +SchemaUUID.prototype.$conditionalHandlers = { + ...SchemaType.prototype.$conditionalHandlers, + $bitsAllClear: handleBitwiseOperator, + $bitsAnyClear: handleBitwiseOperator, + $bitsAllSet: handleBitwiseOperator, + $bitsAnySet: handleBitwiseOperator, + $all: handleArray, + $gt: handleSingle, + $gte: handleSingle, + $in: handleArray, + $lt: handleSingle, + $lte: handleSingle, + $ne: handleSingle, + $nin: handleArray +}; + +/** + * Casts contents for queries. + * + * @param {String} $conditional + * @param {any} val + * @api private + */ + +SchemaUUID.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + if (!handler) + throw new Error('Can\'t use ' + $conditional + ' with UUID.'); + return handler.call(this, val, context); + } + + try { + return this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } +}; + +/*! + * Module exports. + */ + +module.exports = SchemaUUID; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/schemaType.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/schemaType.js new file mode 100644 index 000000000..b54e83fd6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/schemaType.js @@ -0,0 +1,1735 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const MongooseError = require('./error/index'); +const SchemaTypeOptions = require('./options/schemaTypeOptions'); +const $exists = require('./schema/operators/exists'); +const $type = require('./schema/operators/type'); +const clone = require('./helpers/clone'); +const handleImmutable = require('./helpers/schematype/handleImmutable'); +const isAsyncFunction = require('./helpers/isAsyncFunction'); +const isSimpleValidator = require('./helpers/isSimpleValidator'); +const immediate = require('./helpers/immediate'); +const schemaTypeSymbol = require('./helpers/symbols').schemaTypeSymbol; +const utils = require('./utils'); +const validatorErrorSymbol = require('./helpers/symbols').validatorErrorSymbol; +const documentIsModified = require('./helpers/symbols').documentIsModified; + +const populateModelSymbol = require('./helpers/symbols').populateModelSymbol; + +const CastError = MongooseError.CastError; +const ValidatorError = MongooseError.ValidatorError; + +const setOptionsForDefaults = { _skipMarkModified: true }; + +/** + * SchemaType constructor. Do **not** instantiate `SchemaType` directly. + * Mongoose converts your schema paths into SchemaTypes automatically. + * + * #### Example: + * + * const schema = new Schema({ name: String }); + * schema.path('name') instanceof SchemaType; // true + * + * @param {String} path + * @param {SchemaTypeOptions} [options] See [SchemaTypeOptions docs](https://mongoosejs.com/docs/api/schematypeoptions.html) + * @param {String} [instance] + * @api public + */ + +function SchemaType(path, options, instance) { + this[schemaTypeSymbol] = true; + this.path = path; + this.instance = instance; + this.validators = []; + this.getters = this.constructor.hasOwnProperty('getters') ? + this.constructor.getters.slice() : + []; + this.setters = this.constructor.hasOwnProperty('setters') ? + this.constructor.setters.slice() : + []; + + this.splitPath(); + + options = options || {}; + const defaultOptions = this.constructor.defaultOptions || {}; + const defaultOptionsKeys = Object.keys(defaultOptions); + + for (const option of defaultOptionsKeys) { + if (option === 'validate') { + this.validate(defaultOptions.validate); + } else if (defaultOptions.hasOwnProperty(option) && !Object.prototype.hasOwnProperty.call(options, option)) { + options[option] = defaultOptions[option]; + } + } + + if (options.select == null) { + delete options.select; + } + + const Options = this.OptionsConstructor || SchemaTypeOptions; + this.options = new Options(options); + this._index = null; + + + if (utils.hasUserDefinedProperty(this.options, 'immutable')) { + this.$immutable = this.options.immutable; + + handleImmutable(this); + } + + const keys = Object.keys(this.options); + for (const prop of keys) { + if (prop === 'cast') { + if (Array.isArray(this.options[prop])) { + this.castFunction.apply(this, this.options[prop]); + } else { + this.castFunction(this.options[prop]); + } + continue; + } + if (utils.hasUserDefinedProperty(this.options, prop) && typeof this[prop] === 'function') { + // { unique: true, index: true } + if (prop === 'index' && this._index) { + if (options.index === false) { + const index = this._index; + if (typeof index === 'object' && index != null) { + if (index.unique) { + throw new Error('Path "' + this.path + '" may not have `index` ' + + 'set to false and `unique` set to true'); + } + if (index.sparse) { + throw new Error('Path "' + this.path + '" may not have `index` ' + + 'set to false and `sparse` set to true'); + } + } + + this._index = false; + } + continue; + } + + const val = options[prop]; + // Special case so we don't screw up array defaults, see gh-5780 + if (prop === 'default') { + this.default(val); + continue; + } + + const opts = Array.isArray(val) ? val : [val]; + + this[prop].apply(this, opts); + } + } + + Object.defineProperty(this, '$$context', { + enumerable: false, + configurable: false, + writable: true, + value: null + }); +} + +/** + * The class that Mongoose uses internally to instantiate this SchemaType's `options` property. + * @memberOf SchemaType + * @instance + * @api private + */ + +SchemaType.prototype.OptionsConstructor = SchemaTypeOptions; + +/** + * The path to this SchemaType in a Schema. + * + * #### Example: + * + * const schema = new Schema({ name: String }); + * schema.path('name').path; // 'name' + * + * @property path + * @api public + * @memberOf SchemaType + */ + +SchemaType.prototype.path; + +/** + * The validators that Mongoose should run to validate properties at this SchemaType's path. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, required: true } }); + * schema.path('name').validators.length; // 1, the `required` validator + * + * @property validators + * @api public + * @memberOf SchemaType + */ + +SchemaType.prototype.validators; + +/** + * True if this SchemaType has a required validator. False otherwise. + * + * #### Example: + * + * const schema = new Schema({ name: { type: String, required: true } }); + * schema.path('name').isRequired; // true + * + * schema.path('name').required(false); + * schema.path('name').isRequired; // false + * + * @property isRequired + * @api public + * @memberOf SchemaType + */ + +SchemaType.prototype.isRequired; + +/** + * Split the current dottet path into segments + * + * @return {String[]|undefined} + * @api private + */ + +SchemaType.prototype.splitPath = function() { + if (this._presplitPath != null) { + return this._presplitPath; + } + if (this.path == null) { + return undefined; + } + + this._presplitPath = this.path.indexOf('.') === -1 ? [this.path] : this.path.split('.'); + return this._presplitPath; +}; + +/** + * Get/set the function used to cast arbitrary values to this type. + * + * #### Example: + * + * // Disallow `null` for numbers, and don't try to cast any values to + * // numbers, so even strings like '123' will cause a CastError. + * mongoose.Number.cast(function(v) { + * assert.ok(v === undefined || typeof v === 'number'); + * return v; + * }); + * + * @param {Function|false} caster Function that casts arbitrary values to this type, or throws an error if casting failed + * @return {Function} + * @static + * @memberOf SchemaType + * @function cast + * @api public + */ + +SchemaType.cast = function cast(caster) { + if (arguments.length === 0) { + return this._cast; + } + if (caster === false) { + caster = v => v; + } + this._cast = caster; + + return this._cast; +}; + +/** + * Get/set the function used to cast arbitrary values to this particular schematype instance. + * Overrides `SchemaType.cast()`. + * + * #### Example: + * + * // Disallow `null` for numbers, and don't try to cast any values to + * // numbers, so even strings like '123' will cause a CastError. + * const number = new mongoose.Number('mypath', {}); + * number.cast(function(v) { + * assert.ok(v === undefined || typeof v === 'number'); + * return v; + * }); + * + * @param {Function|false} caster Function that casts arbitrary values to this type, or throws an error if casting failed + * @return {Function} + * @memberOf SchemaType + * @api public + */ + +SchemaType.prototype.castFunction = function castFunction(caster, message) { + if (arguments.length === 0) { + return this._castFunction; + } + + if (caster === false) { + caster = this.constructor._defaultCaster || (v => v); + } + if (typeof caster === 'string') { + this._castErrorMessage = caster; + return this._castFunction; + } + if (caster != null) { + this._castFunction = caster; + } + if (message != null) { + this._castErrorMessage = message; + } + + return this._castFunction; +}; + +/** + * The function that Mongoose calls to cast arbitrary values to this SchemaType. + * + * @param {Object} value value to cast + * @param {Document} doc document that triggers the casting + * @param {Boolean} init + * @api public + */ + +SchemaType.prototype.cast = function cast() { + throw new Error('Base SchemaType class does not implement a `cast()` function'); +}; + +/** + * Sets a default option for this schema type. + * + * #### Example: + * + * // Make all strings be trimmed by default + * mongoose.SchemaTypes.String.set('trim', true); + * + * @param {String} option The name of the option you'd like to set (e.g. trim, lowercase, etc...) + * @param {Any} value The value of the option you'd like to set. + * @return {void} + * @static + * @memberOf SchemaType + * @function set + * @api public + */ + +SchemaType.set = function set(option, value) { + if (!this.hasOwnProperty('defaultOptions')) { + this.defaultOptions = Object.assign({}, this.defaultOptions); + } + this.defaultOptions[option] = value; +}; + +/** + * Attaches a getter for all instances of this schema type. + * + * #### Example: + * + * // Make all numbers round down + * mongoose.Number.get(function(v) { return Math.floor(v); }); + * + * @param {Function} getter + * @return {this} + * @static + * @memberOf SchemaType + * @function get + * @api public + */ + +SchemaType.get = function(getter) { + this.getters = this.hasOwnProperty('getters') ? this.getters : []; + this.getters.push(getter); +}; + +/** + * Sets a default value for this SchemaType. + * + * #### Example: + * + * const schema = new Schema({ n: { type: Number, default: 10 }) + * const M = db.model('M', schema) + * const m = new M; + * console.log(m.n) // 10 + * + * Defaults can be either `functions` which return the value to use as the default or the literal value itself. Either way, the value will be cast based on its schema type before being set during document creation. + * + * #### Example: + * + * // values are cast: + * const schema = new Schema({ aNumber: { type: Number, default: 4.815162342 }}) + * const M = db.model('M', schema) + * const m = new M; + * console.log(m.aNumber) // 4.815162342 + * + * // default unique objects for Mixed types: + * const schema = new Schema({ mixed: Schema.Types.Mixed }); + * schema.path('mixed').default(function () { + * return {}; + * }); + * + * // if we don't use a function to return object literals for Mixed defaults, + * // each document will receive a reference to the same object literal creating + * // a "shared" object instance: + * const schema = new Schema({ mixed: Schema.Types.Mixed }); + * schema.path('mixed').default({}); + * const M = db.model('M', schema); + * const m1 = new M; + * m1.mixed.added = 1; + * console.log(m1.mixed); // { added: 1 } + * const m2 = new M; + * console.log(m2.mixed); // { added: 1 } + * + * @param {Function|any} val The default value to set + * @return {Any|undefined} Returns the set default value. + * @api public + */ + +SchemaType.prototype.default = function(val) { + if (arguments.length === 1) { + if (val === void 0) { + this.defaultValue = void 0; + return void 0; + } + + if (val != null && val.instanceOfSchema) { + throw new MongooseError('Cannot set default value of path `' + this.path + + '` to a mongoose Schema instance.'); + } + + this.defaultValue = val; + return this.defaultValue; + } else if (arguments.length > 1) { + this.defaultValue = [...arguments]; + } + return this.defaultValue; +}; + +/** + * Declares the index options for this schematype. + * + * #### Example: + * + * const s = new Schema({ name: { type: String, index: true }) + * const s = new Schema({ name: { type: String, index: -1 }) + * const s = new Schema({ loc: { type: [Number], index: 'hashed' }) + * const s = new Schema({ loc: { type: [Number], index: '2d', sparse: true }) + * const s = new Schema({ loc: { type: [Number], index: { type: '2dsphere', sparse: true }}) + * const s = new Schema({ date: { type: Date, index: { unique: true, expires: '1d' }}) + * s.path('my.path').index(true); + * s.path('my.date').index({ expires: 60 }); + * s.path('my.path').index({ unique: true, sparse: true }); + * + * #### Note: + * + * _Indexes are created [in the background](https://www.mongodb.com/docs/manual/core/index-creation/#index-creation-background) + * by default. If `background` is set to `false`, MongoDB will not execute any + * read/write operations you send until the index build. + * Specify `background: false` to override Mongoose's default._ + * + * @param {Object|Boolean|String|Number} options + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.index = function(options) { + this._index = options; + utils.expires(this._index); + return this; +}; + +/** + * Declares an unique index. + * + * #### Example: + * + * const s = new Schema({ name: { type: String, unique: true } }); + * s.path('name').index({ unique: true }); + * + * _NOTE: violating the constraint returns an `E11000` error from MongoDB when saving, not a Mongoose validation error._ + * + * @param {Boolean} bool + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.unique = function(bool) { + if (this._index === false) { + if (!bool) { + return; + } + throw new Error('Path "' + this.path + '" may not have `index` set to ' + + 'false and `unique` set to true'); + } + + if (!this.options.hasOwnProperty('index') && bool === false) { + return this; + } + + if (this._index == null || this._index === true) { + this._index = {}; + } else if (typeof this._index === 'string') { + this._index = { type: this._index }; + } + + this._index.unique = bool; + return this; +}; + +/** + * Declares a full text index. + * + * ### Example: + * + * const s = new Schema({ name : { type: String, text : true } }) + * s.path('name').index({ text : true }); + * + * @param {Boolean} bool + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.text = function(bool) { + if (this._index === false) { + if (!bool) { + return this; + } + throw new Error('Path "' + this.path + '" may not have `index` set to ' + + 'false and `text` set to true'); + } + + if (!this.options.hasOwnProperty('index') && bool === false) { + return this; + } + + if (this._index === null || this._index === undefined || + typeof this._index === 'boolean') { + this._index = {}; + } else if (typeof this._index === 'string') { + this._index = { type: this._index }; + } + + this._index.text = bool; + return this; +}; + +/** + * Declares a sparse index. + * + * #### Example: + * + * const s = new Schema({ name: { type: String, sparse: true } }); + * s.path('name').index({ sparse: true }); + * + * @param {Boolean} bool + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.sparse = function(bool) { + if (this._index === false) { + if (!bool) { + return this; + } + throw new Error('Path "' + this.path + '" may not have `index` set to ' + + 'false and `sparse` set to true'); + } + + if (!this.options.hasOwnProperty('index') && bool === false) { + return this; + } + + if (this._index == null || typeof this._index === 'boolean') { + this._index = {}; + } else if (typeof this._index === 'string') { + this._index = { type: this._index }; + } + + this._index.sparse = bool; + return this; +}; + +/** + * Defines this path as immutable. Mongoose prevents you from changing + * immutable paths unless the parent document has [`isNew: true`](https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew()). + * + * #### Example: + * + * const schema = new Schema({ + * name: { type: String, immutable: true }, + * age: Number + * }); + * const Model = mongoose.model('Test', schema); + * + * await Model.create({ name: 'test' }); + * const doc = await Model.findOne(); + * + * doc.isNew; // false + * doc.name = 'new name'; + * doc.name; // 'test', because `name` is immutable + * + * Mongoose also prevents changing immutable properties using `updateOne()` + * and `updateMany()` based on [strict mode](https://mongoosejs.com/docs/guide.html#strict). + * + * #### Example: + * + * // Mongoose will strip out the `name` update, because `name` is immutable + * Model.updateOne({}, { $set: { name: 'test2' }, $inc: { age: 1 } }); + * + * // If `strict` is set to 'throw', Mongoose will throw an error if you + * // update `name` + * const err = await Model.updateOne({}, { name: 'test2' }, { strict: 'throw' }). + * then(() => null, err => err); + * err.name; // StrictModeError + * + * // If `strict` is `false`, Mongoose allows updating `name` even though + * // the property is immutable. + * Model.updateOne({}, { name: 'test2' }, { strict: false }); + * + * @param {Boolean} bool + * @return {SchemaType} this + * @see isNew https://mongoosejs.com/docs/api/document.html#Document.prototype.isNew() + * @api public + */ + +SchemaType.prototype.immutable = function(bool) { + this.$immutable = bool; + handleImmutable(this); + + return this; +}; + +/** + * Defines a custom function for transforming this path when converting a document to JSON. + * + * Mongoose calls this function with one parameter: the current `value` of the path. Mongoose + * then uses the return value in the JSON output. + * + * #### Example: + * + * const schema = new Schema({ + * date: { type: Date, transform: v => v.getFullYear() } + * }); + * const Model = mongoose.model('Test', schema); + * + * await Model.create({ date: new Date('2016-06-01') }); + * const doc = await Model.findOne(); + * + * doc.date instanceof Date; // true + * + * doc.toJSON().date; // 2016 as a number + * JSON.stringify(doc); // '{"_id":...,"date":2016}' + * + * @param {Function} fn + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.transform = function(fn) { + this.options.transform = fn; + + return this; +}; + +/** + * Adds a setter to this schematype. + * + * #### Example: + * + * function capitalize (val) { + * if (typeof val !== 'string') val = ''; + * return val.charAt(0).toUpperCase() + val.substring(1); + * } + * + * // defining within the schema + * const s = new Schema({ name: { type: String, set: capitalize }}); + * + * // or with the SchemaType + * const s = new Schema({ name: String }) + * s.path('name').set(capitalize); + * + * Setters allow you to transform the data before it gets to the raw mongodb + * document or query. + * + * Suppose you are implementing user registration for a website. Users provide + * an email and password, which gets saved to mongodb. The email is a string + * that you will want to normalize to lower case, in order to avoid one email + * having more than one account -- e.g., otherwise, avenue@q.com can be registered for 2 accounts via avenue@q.com and AvEnUe@Q.CoM. + * + * You can set up email lower case normalization easily via a Mongoose setter. + * + * function toLower(v) { + * return v.toLowerCase(); + * } + * + * const UserSchema = new Schema({ + * email: { type: String, set: toLower } + * }); + * + * const User = db.model('User', UserSchema); + * + * const user = new User({email: 'AVENUE@Q.COM'}); + * console.log(user.email); // 'avenue@q.com' + * + * // or + * const user = new User(); + * user.email = 'Avenue@Q.com'; + * console.log(user.email); // 'avenue@q.com' + * User.updateOne({ _id: _id }, { $set: { email: 'AVENUE@Q.COM' } }); // update to 'avenue@q.com' + * + * As you can see above, setters allow you to transform the data before it + * stored in MongoDB, or before executing a query. + * + * _NOTE: we could have also just used the built-in `lowercase: true` SchemaType option instead of defining our own function._ + * + * new Schema({ email: { type: String, lowercase: true }}) + * + * Setters are also passed a second argument, the schematype on which the setter was defined. This allows for tailored behavior based on options passed in the schema. + * + * function inspector (val, priorValue, schematype) { + * if (schematype.options.required) { + * return schematype.path + ' is required'; + * } else { + * return val; + * } + * } + * + * const VirusSchema = new Schema({ + * name: { type: String, required: true, set: inspector }, + * taxonomy: { type: String, set: inspector } + * }) + * + * const Virus = db.model('Virus', VirusSchema); + * const v = new Virus({ name: 'Parvoviridae', taxonomy: 'Parvovirinae' }); + * + * console.log(v.name); // name is required + * console.log(v.taxonomy); // Parvovirinae + * + * You can also use setters to modify other properties on the document. If + * you're setting a property `name` on a document, the setter will run with + * `this` as the document. Be careful, in mongoose 5 setters will also run + * when querying by `name` with `this` as the query. + * + * const nameSchema = new Schema({ name: String, keywords: [String] }); + * nameSchema.path('name').set(function(v) { + * // Need to check if `this` is a document, because in mongoose 5 + * // setters will also run on queries, in which case `this` will be a + * // mongoose query object. + * if (this instanceof Document && v != null) { + * this.keywords = v.split(' '); + * } + * return v; + * }); + * + * @param {Function} fn + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.set = function(fn) { + if (typeof fn !== 'function') { + throw new TypeError('A setter must be a function.'); + } + this.setters.push(fn); + return this; +}; + +/** + * Adds a getter to this schematype. + * + * #### Example: + * + * function dob (val) { + * if (!val) return val; + * return (val.getMonth() + 1) + "/" + val.getDate() + "/" + val.getFullYear(); + * } + * + * // defining within the schema + * const s = new Schema({ born: { type: Date, get: dob }) + * + * // or by retreiving its SchemaType + * const s = new Schema({ born: Date }) + * s.path('born').get(dob) + * + * Getters allow you to transform the representation of the data as it travels from the raw mongodb document to the value that you see. + * + * Suppose you are storing credit card numbers and you want to hide everything except the last 4 digits to the mongoose user. You can do so by defining a getter in the following way: + * + * function obfuscate (cc) { + * return '****-****-****-' + cc.slice(cc.length-4, cc.length); + * } + * + * const AccountSchema = new Schema({ + * creditCardNumber: { type: String, get: obfuscate } + * }); + * + * const Account = db.model('Account', AccountSchema); + * + * Account.findById(id, function (err, found) { + * console.log(found.creditCardNumber); // '****-****-****-1234' + * }); + * + * Getters are also passed a second argument, the schematype on which the getter was defined. This allows for tailored behavior based on options passed in the schema. + * + * function inspector (val, priorValue, schematype) { + * if (schematype.options.required) { + * return schematype.path + ' is required'; + * } else { + * return schematype.path + ' is not'; + * } + * } + * + * const VirusSchema = new Schema({ + * name: { type: String, required: true, get: inspector }, + * taxonomy: { type: String, get: inspector } + * }) + * + * const Virus = db.model('Virus', VirusSchema); + * + * Virus.findById(id, function (err, virus) { + * console.log(virus.name); // name is required + * console.log(virus.taxonomy); // taxonomy is not + * }) + * + * @param {Function} fn + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.get = function(fn) { + if (typeof fn !== 'function') { + throw new TypeError('A getter must be a function.'); + } + this.getters.push(fn); + return this; +}; + +/** + * Adds multiple validators for this document path. + * Calls `validate()` for every element in validators. + * + * @param {Array} validators + * @returns this + */ + +SchemaType.prototype.validateAll = function(validators) { + for (let i = 0; i < validators.length; i++) { + this.validate(validators[i]); + } + return this; +}; + +/** + * Adds validator(s) for this document path. + * + * Validators always receive the value to validate as their first argument and + * must return `Boolean`. Returning `false` or throwing an error means + * validation failed. + * + * The error message argument is optional. If not passed, the [default generic error message template](https://mongoosejs.com/docs/api/error.html#Error.messages) will be used. + * + * #### Example: + * + * // make sure every value is equal to "something" + * function validator (val) { + * return val === 'something'; + * } + * new Schema({ name: { type: String, validate: validator }}); + * + * // with a custom error message + * + * const custom = [validator, 'Uh oh, {PATH} does not equal "something".'] + * new Schema({ name: { type: String, validate: custom }}); + * + * // adding many validators at a time + * + * const many = [ + * { validator: validator, message: 'uh oh' } + * , { validator: anotherValidator, message: 'failed' } + * ] + * new Schema({ name: { type: String, validate: many }}); + * + * // or utilizing SchemaType methods directly: + * + * const schema = new Schema({ name: 'string' }); + * schema.path('name').validate(validator, 'validation of `{PATH}` failed with value `{VALUE}`'); + * + * #### Error message templates: + * + * Below is a list of supported template keywords: + * + * - PATH: The schema path where the error is being triggered. + * - VALUE: The value assigned to the PATH that is triggering the error. + * - KIND: The validation property that triggered the error i.e. required. + * - REASON: The error object that caused this error if there was one. + * + * If Mongoose's built-in error message templating isn't enough, Mongoose + * supports setting the `message` property to a function. + * + * schema.path('name').validate({ + * validator: function(v) { return v.length > 5; }, + * // `errors['name']` will be "name must have length 5, got 'foo'" + * message: function(props) { + * return `${props.path} must have length 5, got '${props.value}'`; + * } + * }); + * + * To bypass Mongoose's error messages and just copy the error message that + * the validator throws, do this: + * + * schema.path('name').validate({ + * validator: function() { throw new Error('Oops!'); }, + * // `errors['name'].message` will be "Oops!" + * message: function(props) { return props.reason.message; } + * }); + * + * #### Asynchronous validation: + * + * Mongoose supports validators that return a promise. A validator that returns + * a promise is called an _async validator_. Async validators run in + * parallel, and `validate()` will wait until all async validators have settled. + * + * schema.path('name').validate({ + * validator: function (value) { + * return new Promise(function (resolve, reject) { + * resolve(false); // validation failed + * }); + * } + * }); + * + * You might use asynchronous validators to retreive other documents from the database to validate against or to meet other I/O bound validation needs. + * + * Validation occurs `pre('save')` or whenever you manually execute [document#validate](https://mongoosejs.com/docs/api/document.html#Document.prototype.validate()). + * + * If validation fails during `pre('save')` and no callback was passed to receive the error, an `error` event will be emitted on your Models associated db [connection](https://mongoosejs.com/docs/api/connection.html#Connection()), passing the validation error object along. + * + * const conn = mongoose.createConnection(..); + * conn.on('error', handleError); + * + * const Product = conn.model('Product', yourSchema); + * const dvd = new Product(..); + * dvd.save(); // emits error on the `conn` above + * + * If you want to handle these errors at the Model level, add an `error` + * listener to your Model as shown below. + * + * // registering an error listener on the Model lets us handle errors more locally + * Product.on('error', handleError); + * + * @param {RegExp|Function|Object} obj validator function, or hash describing options + * @param {Function} [obj.validator] validator function. If the validator function returns `undefined` or a truthy value, validation succeeds. If it returns [falsy](https://masteringjs.io/tutorials/fundamentals/falsy) (except `undefined`) or throws an error, validation fails. + * @param {String|Function} [obj.message] optional error message. If function, should return the error message as a string + * @param {Boolean} [obj.propsParameter=false] If true, Mongoose will pass the validator properties object (with the `validator` function, `message`, etc.) as the 2nd arg to the validator function. This is disabled by default because many validators [rely on positional args](https://github.com/chriso/validator.js#validators), so turning this on may cause unpredictable behavior in external validators. + * @param {String|Function} [errorMsg] optional error message. If function, should return the error message as a string + * @param {String} [type] optional validator type + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.validate = function(obj, message, type) { + if (typeof obj === 'function' || obj && utils.getFunctionName(obj.constructor) === 'RegExp') { + let properties; + if (typeof message === 'function') { + properties = { validator: obj, message: message }; + properties.type = type || 'user defined'; + } else if (message instanceof Object && !type) { + properties = isSimpleValidator(message) ? Object.assign({}, message) : clone(message); + if (!properties.message) { + properties.message = properties.msg; + } + properties.validator = obj; + properties.type = properties.type || 'user defined'; + } else { + if (message == null) { + message = MongooseError.messages.general.default; + } + if (!type) { + type = 'user defined'; + } + properties = { message: message, type: type, validator: obj }; + } + + this.validators.push(properties); + return this; + } + + let i; + let length; + let arg; + + for (i = 0, length = arguments.length; i < length; i++) { + arg = arguments[i]; + if (!utils.isPOJO(arg)) { + const msg = 'Invalid validator. Received (' + typeof arg + ') ' + + arg + + '. See https://mongoosejs.com/docs/api/schematype.html#SchemaType.prototype.validate()'; + + throw new Error(msg); + } + this.validate(arg.validator, arg); + } + + return this; +}; + +/** + * Adds a required validator to this SchemaType. The validator gets added + * to the front of this SchemaType's validators array using `unshift()`. + * + * #### Example: + * + * const s = new Schema({ born: { type: Date, required: true }) + * + * // or with custom error message + * + * const s = new Schema({ born: { type: Date, required: '{PATH} is required!' }) + * + * // or with a function + * + * const s = new Schema({ + * userId: ObjectId, + * username: { + * type: String, + * required: function() { return this.userId != null; } + * } + * }) + * + * // or with a function and a custom message + * const s = new Schema({ + * userId: ObjectId, + * username: { + * type: String, + * required: [ + * function() { return this.userId != null; }, + * 'username is required if id is specified' + * ] + * } + * }) + * + * // or through the path API + * + * s.path('name').required(true); + * + * // with custom error messaging + * + * s.path('name').required(true, 'grrr :( '); + * + * // or make a path conditionally required based on a function + * const isOver18 = function() { return this.age >= 18; }; + * s.path('voterRegistrationId').required(isOver18); + * + * The required validator uses the SchemaType's `checkRequired` function to + * determine whether a given value satisfies the required validator. By default, + * a value satisfies the required validator if `val != null` (that is, if + * the value is not null nor undefined). However, most built-in mongoose schema + * types override the default `checkRequired` function: + * + * @param {Boolean|Function|Object} required enable/disable the validator, or function that returns required boolean, or options object + * @param {Boolean|Function} [options.isRequired] enable/disable the validator, or function that returns required boolean + * @param {Function} [options.ErrorConstructor] custom error constructor. The constructor receives 1 parameter, an object containing the validator properties. + * @param {String} [message] optional custom error message + * @return {SchemaType} this + * @see Customized Error Messages https://mongoosejs.com/docs/api/error.html#Error.messages + * @see SchemaArray#checkRequired https://mongoosejs.com/docs/api/schemaarray.html#SchemaArray.prototype.checkRequired() + * @see SchemaBoolean#checkRequired https://mongoosejs.com/docs/api/schemaboolean.html#SchemaBoolean.prototype.checkRequired() + * @see SchemaBuffer#checkRequired https://mongoosejs.com/docs/api/schemabuffer.html#SchemaBuffer.prototype.checkRequired() + * @see SchemaNumber#checkRequired https://mongoosejs.com/docs/api/schemanumber.html#SchemaNumber.prototype.checkRequired() + * @see SchemaObjectId#checkRequired https://mongoosejs.com/docs/api/schemaobjectid.html#ObjectId.prototype.checkRequired() + * @see SchemaString#checkRequired https://mongoosejs.com/docs/api/schemastring.html#SchemaString.prototype.checkRequired() + * @api public + */ + +SchemaType.prototype.required = function(required, message) { + let customOptions = {}; + + if (arguments.length > 0 && required == null) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.requiredValidator; + }, this); + + this.isRequired = false; + delete this.originalRequiredValue; + return this; + } + + if (typeof required === 'object') { + customOptions = required; + message = customOptions.message || message; + required = required.isRequired; + } + + if (required === false) { + this.validators = this.validators.filter(function(v) { + return v.validator !== this.requiredValidator; + }, this); + + this.isRequired = false; + delete this.originalRequiredValue; + return this; + } + + const _this = this; + this.isRequired = true; + + this.requiredValidator = function(v) { + const cachedRequired = this && this.$__ && this.$__.cachedRequired; + + // no validation when this path wasn't selected in the query. + if (cachedRequired != null && !this.$__isSelected(_this.path) && !this[documentIsModified](_this.path)) { + return true; + } + + // `$cachedRequired` gets set in `_evaluateRequiredFunctions()` so we + // don't call required functions multiple times in one validate call + // See gh-6801 + if (cachedRequired != null && _this.path in cachedRequired) { + const res = cachedRequired[_this.path] ? + _this.checkRequired(v, this) : + true; + delete cachedRequired[_this.path]; + return res; + } else if (typeof required === 'function') { + return required.apply(this) ? _this.checkRequired(v, this) : true; + } + + return _this.checkRequired(v, this); + }; + this.originalRequiredValue = required; + + if (typeof required === 'string') { + message = required; + required = undefined; + } + + const msg = message || MongooseError.messages.general.required; + this.validators.unshift(Object.assign({}, customOptions, { + validator: this.requiredValidator, + message: msg, + type: 'required' + })); + + return this; +}; + +/** + * Set the model that this path refers to. This is the option that [populate](https://mongoosejs.com/docs/populate.html) + * looks at to determine the foreign collection it should query. + * + * #### Example: + * + * const userSchema = new Schema({ name: String }); + * const User = mongoose.model('User', userSchema); + * + * const postSchema = new Schema({ user: mongoose.ObjectId }); + * postSchema.path('user').ref('User'); // Can set ref to a model name + * postSchema.path('user').ref(User); // Or a model class + * postSchema.path('user').ref(() => 'User'); // Or a function that returns the model name + * postSchema.path('user').ref(() => User); // Or a function that returns the model class + * + * // Or you can just declare the `ref` inline in your schema + * const postSchema2 = new Schema({ + * user: { type: mongoose.ObjectId, ref: User } + * }); + * + * @param {String|Model|Function} ref either a model name, a [Model](https://mongoosejs.com/docs/models.html), or a function that returns a model name or model. + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.ref = function(ref) { + this.options.ref = ref; + return this; +}; + +/** + * Gets the default value + * + * @param {Object} scope the scope which callback are executed + * @param {Boolean} init + * @return {Any} The Stored default value. + * @api private + */ + +SchemaType.prototype.getDefault = function(scope, init, options) { + let ret; + if (typeof this.defaultValue === 'function') { + if ( + this.defaultValue === Date.now || + this.defaultValue === Array || + this.defaultValue.name.toLowerCase() === 'objectid' + ) { + ret = this.defaultValue.call(scope); + } else { + ret = this.defaultValue.call(scope, scope); + } + } else { + ret = this.defaultValue; + } + + if (ret !== null && ret !== undefined) { + if (typeof ret === 'object' && (!this.options || !this.options.shared)) { + ret = clone(ret); + } + + if (options && options.skipCast) { + return this._applySetters(ret, scope); + } + + const casted = this.applySetters(ret, scope, init, undefined, setOptionsForDefaults); + if (casted && !Array.isArray(casted) && casted.$isSingleNested) { + casted.$__parent = scope; + } + return casted; + } + return ret; +}; + +/** + * Applies setters without casting + * + * @param {Any} value + * @param {Any} scope + * @param {Boolean} init + * @param {Any} priorVal + * @param {Object} [options] + * @instance + * @api private + */ + +SchemaType.prototype._applySetters = function(value, scope, init, priorVal, options) { + let v = value; + if (init) { + return v; + } + const setters = this.setters; + + for (let i = setters.length - 1; i >= 0; i--) { + v = setters[i].call(scope, v, priorVal, this, options); + } + + return v; +}; + +/*! + * ignore + */ + +SchemaType.prototype._castNullish = function _castNullish(v) { + return v; +}; + +/** + * Applies setters + * + * @param {Object} value + * @param {Object} scope + * @param {Boolean} init + * @return {Any} + * @api private + */ + +SchemaType.prototype.applySetters = function(value, scope, init, priorVal, options) { + let v = this._applySetters(value, scope, init, priorVal, options); + if (v == null) { + return this._castNullish(v); + } + // do not cast until all setters are applied #665 + v = this.cast(v, scope, init, priorVal, options); + + return v; +}; + +/** + * Applies getters to a value + * + * @param {Object} value + * @param {Object} scope + * @return {Any} + * @api private + */ + +SchemaType.prototype.applyGetters = function(value, scope) { + let v = value; + const getters = this.getters; + const len = getters.length; + + if (len === 0) { + return v; + } + + for (let i = 0; i < len; ++i) { + v = getters[i].call(scope, v, this); + } + + return v; +}; + +/** + * Sets default `select()` behavior for this path. + * + * Set to `true` if this path should always be included in the results, `false` if it should be excluded by default. This setting can be overridden at the query level. + * + * #### Example: + * + * T = db.model('T', new Schema({ x: { type: String, select: true }})); + * T.find(..); // field x will always be selected .. + * // .. unless overridden; + * T.find().select('-x').exec(callback); + * + * @param {Boolean} val + * @return {SchemaType} this + * @api public + */ + +SchemaType.prototype.select = function select(val) { + this.selected = !!val; + return this; +}; + +/** + * Performs a validation of `value` using the validators declared for this SchemaType. + * + * @param {Any} value + * @param {Function} callback + * @param {Object} scope + * @param {Object} [options] + * @param {String} [options.path] + * @return {Any} If no validators, returns the output from calling `fn`, otherwise no return + * @api public + */ + +SchemaType.prototype.doValidate = function(value, fn, scope, options) { + let err = false; + const path = this.path; + if (typeof fn !== 'function') { + throw new TypeError(`Must pass callback function to doValidate(), got ${typeof fn}`); + } + + // Avoid non-object `validators` + const validators = this.validators. + filter(v => typeof v === 'object' && v !== null); + + let count = validators.length; + + if (!count) { + return fn(null); + } + + for (let i = 0, len = validators.length; i < len; ++i) { + if (err) { + break; + } + + const v = validators[i]; + const validator = v.validator; + let ok; + + const validatorProperties = isSimpleValidator(v) ? Object.assign({}, v) : clone(v); + validatorProperties.path = options && options.path ? options.path : path; + validatorProperties.fullPath = this.$fullPath; + validatorProperties.value = value; + + if (validator instanceof RegExp) { + validate(validator.test(value), validatorProperties, scope); + continue; + } + + if (typeof validator !== 'function') { + continue; + } + + if (value === undefined && validator !== this.requiredValidator) { + validate(true, validatorProperties, scope); + continue; + } + + try { + if (validatorProperties.propsParameter) { + ok = validator.call(scope, value, validatorProperties); + } else { + ok = validator.call(scope, value); + } + } catch (error) { + ok = false; + validatorProperties.reason = error; + if (error.message) { + validatorProperties.message = error.message; + } + } + + if (ok != null && typeof ok.then === 'function') { + ok.then( + function(ok) { validate(ok, validatorProperties, scope); }, + function(error) { + validatorProperties.reason = error; + validatorProperties.message = error.message; + ok = false; + validate(ok, validatorProperties, scope); + }); + } else { + validate(ok, validatorProperties, scope); + } + } + + function validate(ok, validatorProperties, scope) { + if (err) { + return; + } + if (ok === undefined || ok) { + if (--count <= 0) { + immediate(function() { + fn(null); + }); + } + } else { + const ErrorConstructor = validatorProperties.ErrorConstructor || ValidatorError; + err = new ErrorConstructor(validatorProperties, scope); + err[validatorErrorSymbol] = true; + immediate(function() { + fn(err); + }); + } + } +}; + + +function _validate(ok, validatorProperties) { + if (ok !== undefined && !ok) { + const ErrorConstructor = validatorProperties.ErrorConstructor || ValidatorError; + const err = new ErrorConstructor(validatorProperties); + err[validatorErrorSymbol] = true; + return err; + } +} + +/** + * Performs a validation of `value` using the validators declared for this SchemaType. + * + * #### Note: + * + * This method ignores the asynchronous validators. + * + * @param {Any} value + * @param {Object} scope + * @param {Object} [options] + * @param {Object} [options.path] + * @return {MongooseError|null} + * @api private + */ + +SchemaType.prototype.doValidateSync = function(value, scope, options) { + const path = this.path; + const count = this.validators.length; + + if (!count) { + return null; + } + + let validators = this.validators; + if (value === void 0) { + if (this.validators.length !== 0 && this.validators[0].type === 'required') { + validators = [this.validators[0]]; + } else { + return null; + } + } + + let err = null; + let i = 0; + const len = validators.length; + for (i = 0; i < len; ++i) { + const v = validators[i]; + + if (v === null || typeof v !== 'object') { + continue; + } + + const validator = v.validator; + const validatorProperties = isSimpleValidator(v) ? Object.assign({}, v) : clone(v); + validatorProperties.path = options && options.path ? options.path : path; + validatorProperties.fullPath = this.$fullPath; + validatorProperties.value = value; + let ok = false; + + // Skip any explicit async validators. Validators that return a promise + // will still run, but won't trigger any errors. + if (isAsyncFunction(validator)) { + continue; + } + + if (validator instanceof RegExp) { + err = _validate(validator.test(value), validatorProperties); + continue; + } + + if (typeof validator !== 'function') { + continue; + } + + try { + if (validatorProperties.propsParameter) { + ok = validator.call(scope, value, validatorProperties); + } else { + ok = validator.call(scope, value); + } + } catch (error) { + ok = false; + validatorProperties.reason = error; + } + + // Skip any validators that return a promise, we can't handle those + // synchronously + if (ok != null && typeof ok.then === 'function') { + continue; + } + err = _validate(ok, validatorProperties); + if (err) { + break; + } + } + + return err; +}; + +/** + * Determines if value is a valid Reference. + * + * @param {SchemaType} self + * @param {Object} value + * @param {Document} doc + * @param {Boolean} init + * @return {Boolean} + * @api private + */ + +SchemaType._isRef = function(self, value, doc, init) { + // fast path + let ref = init && self.options && (self.options.ref || self.options.refPath); + + if (!ref && doc && doc.$__ != null) { + // checks for + // - this populated with adhoc model and no ref was set in schema OR + // - setting / pushing values after population + const path = doc.$__fullPath(self.path, true); + + const owner = doc.ownerDocument(); + ref = (path != null && owner.$populated(path)) || doc.$populated(self.path); + } + + if (ref) { + if (value == null) { + return true; + } + if (!Buffer.isBuffer(value) && // buffers are objects too + value._bsontype !== 'Binary' // raw binary value from the db + && utils.isObject(value) // might have deselected _id in population query + ) { + return true; + } + + return init; + } + + return false; +}; + +/*! + * ignore + */ + +SchemaType.prototype._castRef = function _castRef(value, doc, init) { + if (value == null) { + return value; + } + + if (value.$__ != null) { + value.$__.wasPopulated = value.$__.wasPopulated || { value: value._id }; + return value; + } + + // setting a populated path + if (Buffer.isBuffer(value) || !utils.isObject(value)) { + if (init) { + return value; + } + throw new CastError(this.instance, value, this.path, null, this); + } + + // Handle the case where user directly sets a populated + // path to a plain object; cast to the Model used in + // the population query. + const path = doc.$__fullPath(this.path, true); + const owner = doc.ownerDocument(); + const pop = owner.$populated(path, true); + + let ret = value; + if (!doc.$__.populated || + !doc.$__.populated[path] || + !doc.$__.populated[path].options || + !doc.$__.populated[path].options.options || + !doc.$__.populated[path].options.options.lean) { + ret = new pop.options[populateModelSymbol](value); + ret.$__.wasPopulated = { value: ret._id }; + } + + return ret; +}; + +/*! + * ignore + */ + +function handleSingle(val, context) { + return this.castForQuery(null, val, context); +} + +/*! + * ignore + */ + +function handleArray(val, context) { + const _this = this; + if (!Array.isArray(val)) { + return [this.castForQuery(null, val, context)]; + } + return val.map(function(m) { + return _this.castForQuery(null, m, context); + }); +} + +/** + * Just like handleArray, except also allows `[]` because surprisingly + * `$in: [1, []]` works fine + * @api private + */ + +function handle$in(val, context) { + const _this = this; + if (!Array.isArray(val)) { + return [this.castForQuery(null, val, context)]; + } + return val.map(function(m) { + if (Array.isArray(m) && m.length === 0) { + return m; + } + return _this.castForQuery(null, m, context); + }); +} + +/*! + * ignore + */ + +SchemaType.prototype.$conditionalHandlers = { + $all: handleArray, + $eq: handleSingle, + $in: handle$in, + $ne: handleSingle, + $nin: handle$in, + $exists: $exists, + $type: $type +}; + +/** + * Cast the given value with the given optional query operator. + * + * @param {String} [$conditional] query operator, like `$eq` or `$in` + * @param {Any} val + * @param {Query} context + * @return {Any} + * @api private + */ + +SchemaType.prototype.castForQuery = function($conditional, val, context) { + let handler; + if ($conditional != null) { + handler = this.$conditionalHandlers[$conditional]; + if (!handler) { + throw new Error('Can\'t use ' + $conditional); + } + return handler.call(this, val, context); + } + + try { + return this.applySetters(val, context); + } catch (err) { + if (err instanceof CastError && err.path === this.path && this.$fullPath != null) { + err.path = this.$fullPath; + } + throw err; + } +}; + +/** + * Set & Get the `checkRequired` function + * Override the function the required validator uses to check whether a value + * passes the `required` check. Override this on the individual SchemaType. + * + * #### Example: + * + * // Use this to allow empty strings to pass the `required` validator + * mongoose.Schema.Types.String.checkRequired(v => typeof v === 'string'); + * + * @param {Function} [fn] If set, will overwrite the current set function + * @return {Function} The input `fn` or the already set function + * @static + * @memberOf SchemaType + * @function checkRequired + * @api public + */ + +SchemaType.checkRequired = function(fn) { + if (arguments.length !== 0) { + this._checkRequired = fn; + } + + return this._checkRequired; +}; + +/** + * Default check for if this path satisfies the `required` validator. + * + * @param {Any} val + * @return {Boolean} `true` when the value is not `null`, `false` otherwise + * @api private + */ + +SchemaType.prototype.checkRequired = function(val) { + return val != null; +}; + +/** + * Clone the current SchemaType + * + * @return {SchemaType} The cloned SchemaType instance + * @api private + */ + +SchemaType.prototype.clone = function() { + const options = Object.assign({}, this.options); + const schematype = new this.constructor(this.path, options, this.instance); + schematype.validators = this.validators.slice(); + if (this.requiredValidator !== undefined) schematype.requiredValidator = this.requiredValidator; + if (this.defaultValue !== undefined) schematype.defaultValue = this.defaultValue; + if (this.$immutable !== undefined && this.options.immutable === undefined) { + schematype.$immutable = this.$immutable; + + handleImmutable(schematype); + } + if (this._index !== undefined) schematype._index = this._index; + if (this.selected !== undefined) schematype.selected = this.selected; + if (this.isRequired !== undefined) schematype.isRequired = this.isRequired; + if (this.originalRequiredValue !== undefined) schematype.originalRequiredValue = this.originalRequiredValue; + schematype.getters = this.getters.slice(); + schematype.setters = this.setters.slice(); + return schematype; +}; + +/*! + * Module exports. + */ + +module.exports = exports = SchemaType; + +exports.CastError = CastError; + +exports.ValidatorError = ValidatorError; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/stateMachine.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/stateMachine.js new file mode 100644 index 000000000..02fbc03e0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/stateMachine.js @@ -0,0 +1,211 @@ + +/*! + * Module dependencies. + */ + +'use strict'; + +const utils = require('./utils'); // eslint-disable-line no-unused-vars + +/** + * StateMachine represents a minimal `interface` for the + * constructors it builds via StateMachine.ctor(...). + * + * @api private + */ + +const StateMachine = module.exports = exports = function StateMachine() { +}; + +/** + * StateMachine.ctor('state1', 'state2', ...) + * A factory method for subclassing StateMachine. + * The arguments are a list of states. For each state, + * the constructor's prototype gets state transition + * methods named after each state. These transition methods + * place their path argument into the given state. + * + * @param {String} state + * @param {String} [state] + * @return {Function} subclass constructor + * @api private + */ + +StateMachine.ctor = function() { + const states = [...arguments]; + + const ctor = function() { + StateMachine.apply(this, arguments); + this.paths = {}; + this.states = {}; + }; + + ctor.prototype = new StateMachine(); + + ctor.prototype.stateNames = states; + + states.forEach(function(state) { + // Changes the `path`'s state to `state`. + ctor.prototype[state] = function(path) { + this._changeState(path, state); + }; + }); + + return ctor; +}; + +/** + * This function is wrapped by the state change functions: + * + * - `require(path)` + * - `modify(path)` + * - `init(path)` + * + * @api private + */ + +StateMachine.prototype._changeState = function _changeState(path, nextState) { + const prevState = this.paths[path]; + if (prevState === nextState) { + return; + } + const prevBucket = this.states[prevState]; + if (prevBucket) delete prevBucket[path]; + + this.paths[path] = nextState; + this.states[nextState] = this.states[nextState] || {}; + this.states[nextState][path] = true; +}; + +/*! + * ignore + */ + +StateMachine.prototype.clear = function clear(state) { + if (this.states[state] == null) { + return; + } + const keys = Object.keys(this.states[state]); + let i = keys.length; + let path; + + while (i--) { + path = keys[i]; + delete this.states[state][path]; + delete this.paths[path]; + } +}; + +/*! + * ignore + */ + +StateMachine.prototype.clearPath = function clearPath(path) { + const state = this.paths[path]; + if (!state) { + return; + } + delete this.paths[path]; + delete this.states[state][path]; +}; + +/** + * Gets the paths for the given state, or empty object `{}` if none. + * @api private + */ + +StateMachine.prototype.getStatePaths = function getStatePaths(state) { + if (this.states[state] != null) { + return this.states[state]; + } + return {}; +}; + +/** + * Checks to see if at least one path is in the states passed in via `arguments` + * e.g., this.some('required', 'inited') + * + * @param {String} state that we want to check for. + * @api private + */ + +StateMachine.prototype.some = function some() { + const _this = this; + const what = arguments.length ? arguments : this.stateNames; + return Array.prototype.some.call(what, function(state) { + if (_this.states[state] == null) { + return false; + } + return Object.keys(_this.states[state]).length; + }); +}; + +/** + * This function builds the functions that get assigned to `forEach` and `map`, + * since both of those methods share a lot of the same logic. + * + * @param {String} iterMethod is either 'forEach' or 'map' + * @return {Function} + * @api private + */ + +StateMachine.prototype._iter = function _iter(iterMethod) { + return function() { + let states = [...arguments]; + const callback = states.pop(); + + if (!states.length) states = this.stateNames; + + const _this = this; + + const paths = states.reduce(function(paths, state) { + if (_this.states[state] == null) { + return paths; + } + return paths.concat(Object.keys(_this.states[state])); + }, []); + + return paths[iterMethod](function(path, i, paths) { + return callback(path, i, paths); + }); + }; +}; + +/** + * Iterates over the paths that belong to one of the parameter states. + * + * The function profile can look like: + * this.forEach(state1, fn); // iterates over all paths in state1 + * this.forEach(state1, state2, fn); // iterates over all paths in state1 or state2 + * this.forEach(fn); // iterates over all paths in all states + * + * @param {String} [state] + * @param {String} [state] + * @param {Function} callback + * @api private + */ + +StateMachine.prototype.forEach = function forEach() { + this.forEach = this._iter('forEach'); + return this.forEach.apply(this, arguments); +}; + +/** + * Maps over the paths that belong to one of the parameter states. + * + * The function profile can look like: + * this.forEach(state1, fn); // iterates over all paths in state1 + * this.forEach(state1, state2, fn); // iterates over all paths in state1 or state2 + * this.forEach(fn); // iterates over all paths in all states + * + * @param {String} [state] + * @param {String} [state] + * @param {Function} callback + * @return {Array} + * @api private + */ + +StateMachine.prototype.map = function map() { + this.map = this._iter('map'); + return this.map.apply(this, arguments); +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/index.js new file mode 100644 index 000000000..4a8c98823 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/index.js @@ -0,0 +1,119 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const Document = require('../../document'); +const mongooseArrayMethods = require('./methods'); + +const arrayAtomicsSymbol = require('../../helpers/symbols').arrayAtomicsSymbol; +const arrayAtomicsBackupSymbol = require('../../helpers/symbols').arrayAtomicsBackupSymbol; +const arrayParentSymbol = require('../../helpers/symbols').arrayParentSymbol; +const arrayPathSymbol = require('../../helpers/symbols').arrayPathSymbol; +const arraySchemaSymbol = require('../../helpers/symbols').arraySchemaSymbol; + +/** + * Mongoose Array constructor. + * + * #### Note: + * + * _Values always have to be passed to the constructor to initialize, otherwise `MongooseArray#push` will mark the array as modified._ + * + * @param {Array} values + * @param {String} path + * @param {Document} doc parent document + * @api private + * @inherits Array https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array + * @see https://bit.ly/f6CnZU + */ +const _basePush = Array.prototype.push; +const numberRE = /^\d+$/; + +function MongooseArray(values, path, doc, schematype) { + let __array; + + if (Array.isArray(values)) { + const len = values.length; + + // Perf optimizations for small arrays: much faster to use `...` than `for` + `push`, + // but large arrays may cause stack overflows. And for arrays of length 0/1, just + // modifying the array is faster. Seems small, but adds up when you have a document + // with thousands of nested arrays. + if (len === 0) { + __array = new Array(); + } else if (len === 1) { + __array = new Array(1); + __array[0] = values[0]; + } else if (len < 10000) { + __array = new Array(); + _basePush.apply(__array, values); + } else { + __array = new Array(); + for (let i = 0; i < len; ++i) { + _basePush.call(__array, values[i]); + } + } + } else { + __array = []; + } + + const internals = { + [arrayAtomicsSymbol]: {}, + [arrayAtomicsBackupSymbol]: void 0, + [arrayPathSymbol]: path, + [arraySchemaSymbol]: schematype, + [arrayParentSymbol]: void 0, + isMongooseArray: true, + isMongooseArrayProxy: true, + __array: __array + }; + + if (values && values[arrayAtomicsSymbol] != null) { + internals[arrayAtomicsSymbol] = values[arrayAtomicsSymbol]; + } + + // Because doc comes from the context of another function, doc === global + // can happen if there was a null somewhere up the chain (see #3020) + // RB Jun 17, 2015 updated to check for presence of expected paths instead + // to make more proof against unusual node environments + if (doc != null && doc instanceof Document) { + internals[arrayParentSymbol] = doc; + internals[arraySchemaSymbol] = schematype || doc.schema.path(path); + } + + const proxy = new Proxy(__array, { + get: function(target, prop) { + if (internals.hasOwnProperty(prop)) { + return internals[prop]; + } + if (mongooseArrayMethods.hasOwnProperty(prop)) { + return mongooseArrayMethods[prop]; + } + if (typeof prop === 'string' && numberRE.test(prop) && schematype?.$embeddedSchemaType != null) { + return schematype.$embeddedSchemaType.applyGetters(__array[prop], doc); + } + + return __array[prop]; + }, + set: function(target, prop, value) { + if (typeof prop === 'string' && numberRE.test(prop)) { + mongooseArrayMethods.set.call(proxy, prop, value, false); + } else if (internals.hasOwnProperty(prop)) { + internals[prop] = value; + } else { + __array[prop] = value; + } + + return true; + } + }); + + return proxy; +} + +/*! + * Module exports. + */ + +module.exports = exports = MongooseArray; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/isMongooseArray.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/isMongooseArray.js new file mode 100644 index 000000000..89326136b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/isMongooseArray.js @@ -0,0 +1,5 @@ +'use strict'; + +exports.isMongooseArray = function(mongooseArray) { + return Array.isArray(mongooseArray) && mongooseArray.isMongooseArray; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/methods/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/methods/index.js new file mode 100644 index 000000000..b79628cd4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/array/methods/index.js @@ -0,0 +1,1031 @@ +'use strict'; + +const Document = require('../../../document'); +const ArraySubdocument = require('../../arraySubdocument'); +const MongooseError = require('../../../error/mongooseError'); +const cleanModifiedSubpaths = require('../../../helpers/document/cleanModifiedSubpaths'); +const clone = require('../../../helpers/clone'); +const internalToObjectOptions = require('../../../options').internalToObjectOptions; +const mpath = require('mpath'); +const utils = require('../../../utils'); +const isBsonType = require('../../../helpers/isBsonType'); + +const arrayAtomicsSymbol = require('../../../helpers/symbols').arrayAtomicsSymbol; +const arrayParentSymbol = require('../../../helpers/symbols').arrayParentSymbol; +const arrayPathSymbol = require('../../../helpers/symbols').arrayPathSymbol; +const arraySchemaSymbol = require('../../../helpers/symbols').arraySchemaSymbol; +const populateModelSymbol = require('../../../helpers/symbols').populateModelSymbol; +const slicedSymbol = Symbol('mongoose#Array#sliced'); + +const _basePush = Array.prototype.push; + +/*! + * ignore + */ + +const methods = { + /** + * Depopulates stored atomic operation values as necessary for direct insertion to MongoDB. + * + * If no atomics exist, we return all array values after conversion. + * + * @return {Array} + * @method $__getAtomics + * @memberOf MongooseArray + * @instance + * @api private + */ + + $__getAtomics() { + const ret = []; + const keys = Object.keys(this[arrayAtomicsSymbol] || {}); + let i = keys.length; + + const opts = Object.assign({}, internalToObjectOptions, { _isNested: true }); + + if (i === 0) { + ret[0] = ['$set', this.toObject(opts)]; + return ret; + } + + while (i--) { + const op = keys[i]; + let val = this[arrayAtomicsSymbol][op]; + + // the atomic values which are arrays are not MongooseArrays. we + // need to convert their elements as if they were MongooseArrays + // to handle populated arrays versus DocumentArrays properly. + if (utils.isMongooseObject(val)) { + val = val.toObject(opts); + } else if (Array.isArray(val)) { + val = this.toObject.call(val, opts); + } else if (val != null && Array.isArray(val.$each)) { + val.$each = this.toObject.call(val.$each, opts); + } else if (val != null && typeof val.valueOf === 'function') { + val = val.valueOf(); + } + + if (op === '$addToSet') { + val = { $each: val }; + } + + ret.push([op, val]); + } + + return ret; + }, + + /*! + * ignore + */ + + $atomics() { + return this[arrayAtomicsSymbol]; + }, + + /*! + * ignore + */ + + $parent() { + return this[arrayParentSymbol]; + }, + + /*! + * ignore + */ + + $path() { + return this[arrayPathSymbol]; + }, + + /** + * Atomically shifts the array at most one time per document `save()`. + * + * #### Note: + * + * _Calling this multiple times on an array before saving sends the same command as calling it once._ + * _This update is implemented using the MongoDB [$pop](https://www.mongodb.com/docs/manual/reference/operator/update/pop/) method which enforces this restriction._ + * + * doc.array = [1,2,3]; + * + * const shifted = doc.array.$shift(); + * console.log(shifted); // 1 + * console.log(doc.array); // [2,3] + * + * // no affect + * shifted = doc.array.$shift(); + * console.log(doc.array); // [2,3] + * + * doc.save(function (err) { + * if (err) return handleError(err); + * + * // we saved, now $shift works again + * shifted = doc.array.$shift(); + * console.log(shifted ); // 2 + * console.log(doc.array); // [3] + * }) + * + * @api public + * @memberOf MongooseArray + * @instance + * @method $shift + * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pop/ + */ + + $shift() { + this._registerAtomic('$pop', -1); + this._markModified(); + + // only allow shifting once + const __array = this.__array; + if (__array._shifted) { + return; + } + __array._shifted = true; + + return [].shift.call(__array); + }, + + /** + * Pops the array atomically at most one time per document `save()`. + * + * #### NOTE: + * + * _Calling this multiple times on an array before saving sends the same command as calling it once._ + * _This update is implemented using the MongoDB [$pop](https://www.mongodb.com/docs/manual/reference/operator/update/pop/) method which enforces this restriction._ + * + * doc.array = [1,2,3]; + * + * const popped = doc.array.$pop(); + * console.log(popped); // 3 + * console.log(doc.array); // [1,2] + * + * // no affect + * popped = doc.array.$pop(); + * console.log(doc.array); // [1,2] + * + * doc.save(function (err) { + * if (err) return handleError(err); + * + * // we saved, now $pop works again + * popped = doc.array.$pop(); + * console.log(popped); // 2 + * console.log(doc.array); // [1] + * }) + * + * @api public + * @method $pop + * @memberOf MongooseArray + * @instance + * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pop/ + * @method $pop + * @memberOf MongooseArray + */ + + $pop() { + this._registerAtomic('$pop', 1); + this._markModified(); + + // only allow popping once + if (this._popped) { + return; + } + this._popped = true; + + return [].pop.call(this); + }, + + /*! + * ignore + */ + + $schema() { + return this[arraySchemaSymbol]; + }, + + /** + * Casts a member based on this arrays schema. + * + * @param {any} value + * @return value the casted value + * @method _cast + * @api private + * @memberOf MongooseArray + */ + + _cast(value) { + let populated = false; + let Model; + + const parent = this[arrayParentSymbol]; + if (parent) { + populated = parent.$populated(this[arrayPathSymbol], true); + } + + if (populated && value !== null && value !== undefined) { + // cast to the populated Models schema + Model = populated.options[populateModelSymbol]; + if (Model == null) { + throw new MongooseError('No populated model found for path `' + this[arrayPathSymbol] + '`. This is likely a bug in Mongoose, please report an issue on github.com/Automattic/mongoose.'); + } + + // only objects are permitted so we can safely assume that + // non-objects are to be interpreted as _id + if (Buffer.isBuffer(value) || + isBsonType(value, 'ObjectId') || !utils.isObject(value)) { + value = { _id: value }; + } + + // gh-2399 + // we should cast model only when it's not a discriminator + const isDisc = value.schema && value.schema.discriminatorMapping && + value.schema.discriminatorMapping.key !== undefined; + if (!isDisc) { + value = new Model(value); + } + return this[arraySchemaSymbol].caster.applySetters(value, parent, true); + } + + return this[arraySchemaSymbol].caster.applySetters(value, parent, false); + }, + + /** + * Internal helper for .map() + * + * @api private + * @return {Number} + * @method _mapCast + * @memberOf MongooseArray + */ + + _mapCast(val, index) { + return this._cast(val, this.length + index); + }, + + /** + * Marks this array as modified. + * + * If it bubbles up from an embedded document change, then it takes the following arguments (otherwise, takes 0 arguments) + * + * @param {ArraySubdocument} subdoc the embedded doc that invoked this method on the Array + * @param {String} embeddedPath the path which changed in the subdoc + * @method _markModified + * @api private + * @memberOf MongooseArray + */ + + _markModified(elem) { + const parent = this[arrayParentSymbol]; + let dirtyPath; + + if (parent) { + dirtyPath = this[arrayPathSymbol]; + + if (arguments.length) { + dirtyPath = dirtyPath + '.' + elem; + } + + if (dirtyPath != null && dirtyPath.endsWith('.$')) { + return this; + } + + parent.markModified(dirtyPath, arguments.length !== 0 ? elem : parent); + } + + return this; + }, + + /** + * Register an atomic operation with the parent. + * + * @param {Array} op operation + * @param {any} val + * @method _registerAtomic + * @api private + * @memberOf MongooseArray + */ + + _registerAtomic(op, val) { + if (this[slicedSymbol]) { + return; + } + if (op === '$set') { + // $set takes precedence over all other ops. + // mark entire array modified. + this[arrayAtomicsSymbol] = { $set: val }; + cleanModifiedSubpaths(this[arrayParentSymbol], this[arrayPathSymbol]); + this._markModified(); + return this; + } + + const atomics = this[arrayAtomicsSymbol]; + + // reset pop/shift after save + if (op === '$pop' && !('$pop' in atomics)) { + const _this = this; + this[arrayParentSymbol].once('save', function() { + _this._popped = _this._shifted = null; + }); + } + + // check for impossible $atomic combos (Mongo denies more than one + // $atomic op on a single path + if (atomics.$set || Object.keys(atomics).length && !(op in atomics)) { + // a different op was previously registered. + // save the entire thing. + this[arrayAtomicsSymbol] = { $set: this }; + return this; + } + + let selector; + + if (op === '$pullAll' || op === '$addToSet') { + atomics[op] || (atomics[op] = []); + atomics[op] = atomics[op].concat(val); + } else if (op === '$pullDocs') { + const pullOp = atomics['$pull'] || (atomics['$pull'] = {}); + if (val[0] instanceof ArraySubdocument) { + selector = pullOp['$or'] || (pullOp['$or'] = []); + Array.prototype.push.apply(selector, val.map(v => { + return v.toObject({ + transform: (doc, ret) => { + if (v == null || v.$__ == null) { + return ret; + } + + Object.keys(v.$__.activePaths.getStatePaths('default')).forEach(path => { + mpath.unset(path, ret); + + _minimizePath(ret, path); + }); + + return ret; + }, + virtuals: false + }); + })); + } else { + selector = pullOp['_id'] || (pullOp['_id'] = { $in: [] }); + selector['$in'] = selector['$in'].concat(val); + } + } else if (op === '$push') { + atomics.$push = atomics.$push || { $each: [] }; + if (val != null && utils.hasUserDefinedProperty(val, '$each')) { + atomics.$push = val; + } else { + if (val.length === 1) { + atomics.$push.$each.push(val[0]); + } else if (val.length < 10000) { + atomics.$push.$each.push(...val); + } else { + for (const v of val) { + atomics.$push.$each.push(v); + } + } + } + } else { + atomics[op] = val; + } + + return this; + }, + + /** + * Adds values to the array if not already present. + * + * #### Example: + * + * console.log(doc.array) // [2,3,4] + * const added = doc.array.addToSet(4,5); + * console.log(doc.array) // [2,3,4,5] + * console.log(added) // [5] + * + * @param {...any} [args] + * @return {Array} the values that were added + * @memberOf MongooseArray + * @api public + * @method addToSet + */ + + addToSet() { + _checkManualPopulation(this, arguments); + + const values = [].map.call(arguments, this._mapCast, this); + const added = []; + let type = ''; + if (values[0] instanceof ArraySubdocument) { + type = 'doc'; + } else if (values[0] instanceof Date) { + type = 'date'; + } else if (isBsonType(values[0], 'ObjectId')) { + type = 'ObjectId'; + } + + const rawValues = utils.isMongooseArray(values) ? values.__array : values; + const rawArray = utils.isMongooseArray(this) ? this.__array : this; + + rawValues.forEach(function(v) { + let found; + const val = +v; + switch (type) { + case 'doc': + found = this.some(function(doc) { + return doc.equals(v); + }); + break; + case 'date': + found = this.some(function(d) { + return +d === val; + }); + break; + case 'ObjectId': + found = this.find(o => o.toString() === v.toString()); + break; + default: + found = ~this.indexOf(v); + break; + } + + if (!found) { + this._markModified(); + rawArray.push(v); + this._registerAtomic('$addToSet', v); + [].push.call(added, v); + } + }, this); + + return added; + }, + + /** + * Returns the number of pending atomic operations to send to the db for this array. + * + * @api private + * @return {Number} + * @method hasAtomics + * @memberOf MongooseArray + */ + + hasAtomics() { + if (!utils.isPOJO(this[arrayAtomicsSymbol])) { + return 0; + } + + return Object.keys(this[arrayAtomicsSymbol]).length; + }, + + /** + * Return whether or not the `obj` is included in the array. + * + * @param {Object} obj the item to check + * @param {Number} fromIndex + * @return {Boolean} + * @api public + * @method includes + * @memberOf MongooseArray + */ + + includes(obj, fromIndex) { + const ret = this.indexOf(obj, fromIndex); + return ret !== -1; + }, + + /** + * Return the index of `obj` or `-1` if not found. + * + * @param {Object} obj the item to look for + * @param {Number} fromIndex + * @return {Number} + * @api public + * @method indexOf + * @memberOf MongooseArray + */ + + indexOf(obj, fromIndex) { + if (isBsonType(obj, 'ObjectId')) { + obj = obj.toString(); + } + + fromIndex = fromIndex == null ? 0 : fromIndex; + const len = this.length; + for (let i = fromIndex; i < len; ++i) { + if (obj == this[i]) { + return i; + } + } + return -1; + }, + + /** + * Helper for console.log + * + * @api public + * @method inspect + * @memberOf MongooseArray + */ + + inspect() { + return JSON.stringify(this); + }, + + /** + * Pushes items to the array non-atomically. + * + * #### Note: + * + * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._ + * + * @param {...any} [args] + * @api public + * @method nonAtomicPush + * @memberOf MongooseArray + */ + + nonAtomicPush() { + const values = [].map.call(arguments, this._mapCast, this); + this._markModified(); + const ret = [].push.apply(this, values); + this._registerAtomic('$set', this); + return ret; + }, + + /** + * Wraps [`Array#pop`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/pop) with proper change tracking. + * + * #### Note: + * + * _marks the entire array as modified which will pass the entire thing to $set potentially overwriting any changes that happen between when you retrieved the object and when you save it._ + * + * @see MongooseArray#$pop https://mongoosejs.com/docs/api/array.html#MongooseArray.prototype.$pop() + * @api public + * @method pop + * @memberOf MongooseArray + */ + + pop() { + this._markModified(); + const ret = [].pop.call(this); + this._registerAtomic('$set', this); + return ret; + }, + + /** + * Pulls items from the array atomically. Equality is determined by casting + * the provided value to an embedded document and comparing using + * [the `Document.equals()` function.](https://mongoosejs.com/docs/api/document.html#Document.prototype.equals()) + * + * #### Example: + * + * doc.array.pull(ObjectId) + * doc.array.pull({ _id: 'someId' }) + * doc.array.pull(36) + * doc.array.pull('tag 1', 'tag 2') + * + * To remove a document from a subdocument array we may pass an object with a matching `_id`. + * + * doc.subdocs.push({ _id: 4815162342 }) + * doc.subdocs.pull({ _id: 4815162342 }) // removed + * + * Or we may passing the _id directly and let mongoose take care of it. + * + * doc.subdocs.push({ _id: 4815162342 }) + * doc.subdocs.pull(4815162342); // works + * + * The first pull call will result in a atomic operation on the database, if pull is called repeatedly without saving the document, a $set operation is used on the complete array instead, overwriting possible changes that happened on the database in the meantime. + * + * @param {...any} [args] + * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pull/ + * @api public + * @method pull + * @memberOf MongooseArray + */ + + pull() { + const values = [].map.call(arguments, (v, i) => this._cast(v, i, { defaults: false }), this); + let cur = this[arrayParentSymbol].get(this[arrayPathSymbol]); + if (utils.isMongooseArray(cur)) { + cur = cur.__array; + } + let i = cur.length; + let mem; + this._markModified(); + + while (i--) { + mem = cur[i]; + if (mem instanceof Document) { + const some = values.some(function(v) { + return mem.equals(v); + }); + if (some) { + cur.splice(i, 1); + } + } else if (~this.indexOf.call(values, mem)) { + cur.splice(i, 1); + } + } + + if (values[0] instanceof ArraySubdocument) { + this._registerAtomic('$pullDocs', values.map(function(v) { + const _id = v.$__getValue('_id'); + if (_id === undefined || v.$isDefault('_id')) { + return v; + } + return _id; + })); + } else { + this._registerAtomic('$pullAll', values); + } + + + // Might have modified child paths and then pulled, like + // `doc.children[1].name = 'test';` followed by + // `doc.children.remove(doc.children[0]);`. In this case we fall back + // to a `$set` on the whole array. See #3511 + if (cleanModifiedSubpaths(this[arrayParentSymbol], this[arrayPathSymbol]) > 0) { + this._registerAtomic('$set', this); + } + + return this; + }, + + /** + * Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking. + * + * #### Example: + * + * const schema = Schema({ nums: [Number] }); + * const Model = mongoose.model('Test', schema); + * + * const doc = await Model.create({ nums: [3, 4] }); + * doc.nums.push(5); // Add 5 to the end of the array + * await doc.save(); + * + * // You can also pass an object with `$each` as the + * // first parameter to use MongoDB's `$position` + * doc.nums.push({ + * $each: [1, 2], + * $position: 0 + * }); + * doc.nums; // [1, 2, 3, 4, 5] + * + * @param {...Object} [args] + * @api public + * @method push + * @memberOf MongooseArray + */ + + push() { + let values = arguments; + let atomic = values; + const isOverwrite = values[0] != null && + utils.hasUserDefinedProperty(values[0], '$each'); + const arr = utils.isMongooseArray(this) ? this.__array : this; + if (isOverwrite) { + atomic = values[0]; + values = values[0].$each; + } + + if (this[arraySchemaSymbol] == null) { + return _basePush.apply(this, values); + } + + _checkManualPopulation(this, values); + + values = [].map.call(values, this._mapCast, this); + let ret; + const atomics = this[arrayAtomicsSymbol]; + this._markModified(); + if (isOverwrite) { + atomic.$each = values; + + if ((atomics.$push && atomics.$push.$each && atomics.$push.$each.length || 0) !== 0 && + atomics.$push.$position != atomic.$position) { + if (atomic.$position != null) { + [].splice.apply(arr, [atomic.$position, 0].concat(values)); + ret = arr.length; + } else { + ret = [].push.apply(arr, values); + } + + this._registerAtomic('$set', this); + } else if (atomic.$position != null) { + [].splice.apply(arr, [atomic.$position, 0].concat(values)); + ret = this.length; + } else { + ret = [].push.apply(arr, values); + } + } else { + atomic = values; + ret = _basePush.apply(arr, values); + } + + this._registerAtomic('$push', atomic); + return ret; + }, + + /** + * Alias of [pull](https://mongoosejs.com/docs/api/array.html#MongooseArray.prototype.pull()) + * + * @see MongooseArray#pull https://mongoosejs.com/docs/api/array.html#MongooseArray.prototype.pull() + * @see mongodb https://www.mongodb.com/docs/manual/reference/operator/update/pull/ + * @api public + * @memberOf MongooseArray + * @instance + * @method remove + */ + + remove() { + return this.pull.apply(this, arguments); + }, + + /** + * Sets the casted `val` at index `i` and marks the array modified. + * + * #### Example: + * + * // given documents based on the following + * const Doc = mongoose.model('Doc', new Schema({ array: [Number] })); + * + * const doc = new Doc({ array: [2,3,4] }) + * + * console.log(doc.array) // [2,3,4] + * + * doc.array.set(1,"5"); + * console.log(doc.array); // [2,5,4] // properly cast to number + * doc.save() // the change is saved + * + * // VS not using array#set + * doc.array[1] = "5"; + * console.log(doc.array); // [2,"5",4] // no casting + * doc.save() // change is not saved + * + * @return {Array} this + * @api public + * @method set + * @memberOf MongooseArray + */ + + set(i, val, skipModified) { + const arr = this.__array; + if (skipModified) { + arr[i] = val; + return this; + } + const value = methods._cast.call(this, val, i); + methods._markModified.call(this, i); + arr[i] = value; + return this; + }, + + /** + * Wraps [`Array#shift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking. + * + * #### Example: + * + * doc.array = [2,3]; + * const res = doc.array.shift(); + * console.log(res) // 2 + * console.log(doc.array) // [3] + * + * #### Note: + * + * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._ + * + * @api public + * @method shift + * @memberOf MongooseArray + */ + + shift() { + const arr = utils.isMongooseArray(this) ? this.__array : this; + this._markModified(); + const ret = [].shift.call(arr); + this._registerAtomic('$set', this); + return ret; + }, + + /** + * Wraps [`Array#sort`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/sort) with proper change tracking. + * + * #### Note: + * + * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._ + * + * @api public + * @method sort + * @memberOf MongooseArray + * @see MasteringJS: Array sort https://masteringjs.io/tutorials/fundamentals/array-sort + */ + + sort() { + const arr = utils.isMongooseArray(this) ? this.__array : this; + const ret = [].sort.apply(arr, arguments); + this._registerAtomic('$set', this); + return ret; + }, + + /** + * Wraps [`Array#splice`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/splice) with proper change tracking and casting. + * + * #### Note: + * + * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._ + * + * @api public + * @method splice + * @memberOf MongooseArray + * @see MasteringJS: Array splice https://masteringjs.io/tutorials/fundamentals/array-splice + */ + + splice() { + let ret; + const arr = utils.isMongooseArray(this) ? this.__array : this; + + this._markModified(); + _checkManualPopulation(this, Array.prototype.slice.call(arguments, 2)); + + if (arguments.length) { + let vals; + if (this[arraySchemaSymbol] == null) { + vals = arguments; + } else { + vals = []; + for (let i = 0; i < arguments.length; ++i) { + vals[i] = i < 2 ? + arguments[i] : + this._cast(arguments[i], arguments[0] + (i - 2)); + } + } + + ret = [].splice.apply(arr, vals); + this._registerAtomic('$set', this); + } + + return ret; + }, + + /*! + * ignore + */ + + toBSON() { + return this.toObject(internalToObjectOptions); + }, + + /** + * Returns a native js Array. + * + * @param {Object} options + * @return {Array} + * @api public + * @method toObject + * @memberOf MongooseArray + */ + + toObject(options) { + const arr = utils.isMongooseArray(this) ? this.__array : this; + if (options && options.depopulate) { + options = clone(options); + options._isNested = true; + // Ensure return value is a vanilla array, because in Node.js 6+ `map()` + // is smart enough to use the inherited array's constructor. + return [].concat(arr).map(function(doc) { + return doc instanceof Document + ? doc.toObject(options) + : doc; + }); + } + + return [].concat(arr); + }, + + $toObject() { + return this.constructor.prototype.toObject.apply(this, arguments); + }, + /** + * Wraps [`Array#unshift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking. + * + * #### Note: + * + * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwriting any changes that happen between when you retrieved the object and when you save it._ + * + * @api public + * @method unshift + * @memberOf MongooseArray + */ + + unshift() { + _checkManualPopulation(this, arguments); + + let values; + if (this[arraySchemaSymbol] == null) { + values = arguments; + } else { + values = [].map.call(arguments, this._cast, this); + } + + const arr = utils.isMongooseArray(this) ? this.__array : this; + this._markModified(); + [].unshift.apply(arr, values); + this._registerAtomic('$set', this); + return this.length; + } +}; + +/*! + * ignore + */ + +function _isAllSubdocs(docs, ref) { + if (!ref) { + return false; + } + + for (const arg of docs) { + if (arg == null) { + return false; + } + const model = arg.constructor; + if (!(arg instanceof Document) || + (model.modelName !== ref && model.baseModelName !== ref)) { + return false; + } + } + + return true; +} + +/*! + * Minimize _just_ empty objects along the path chain specified + * by `parts`, ignoring all other paths. Useful in cases where + * you want to minimize after unsetting a path. + * + * #### Example: + * + * const obj = { foo: { bar: { baz: {} } }, a: {} }; + * _minimizePath(obj, 'foo.bar.baz'); + * obj; // { a: {} } + */ + +function _minimizePath(obj, parts, i) { + if (typeof parts === 'string') { + if (parts.indexOf('.') === -1) { + return; + } + + parts = mpath.stringToParts(parts); + } + i = i || 0; + if (i >= parts.length) { + return; + } + if (obj == null || typeof obj !== 'object') { + return; + } + + _minimizePath(obj[parts[0]], parts, i + 1); + if (obj[parts[0]] != null && typeof obj[parts[0]] === 'object' && Object.keys(obj[parts[0]]).length === 0) { + delete obj[parts[0]]; + } +} + +/*! + * ignore + */ + +function _checkManualPopulation(arr, docs) { + const ref = arr == null ? + null : + arr[arraySchemaSymbol] && arr[arraySchemaSymbol].caster && arr[arraySchemaSymbol].caster.options && arr[arraySchemaSymbol].caster.options.ref || null; + if (arr.length === 0 && + docs.length !== 0) { + if (_isAllSubdocs(docs, ref)) { + arr[arrayParentSymbol].$populated(arr[arrayPathSymbol], [], { + [populateModelSymbol]: docs[0].constructor + }); + } + } +} + +const returnVanillaArrayMethods = [ + 'filter', + 'flat', + 'flatMap', + 'map', + 'slice' +]; +for (const method of returnVanillaArrayMethods) { + if (Array.prototype[method] == null) { + continue; + } + + methods[method] = function() { + const _arr = utils.isMongooseArray(this) ? this.__array : this; + const arr = [].concat(_arr); + + return arr[method].apply(arr, arguments); + }; +} + +module.exports = methods; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/arraySubdocument.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/arraySubdocument.js new file mode 100644 index 000000000..920088fae --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/arraySubdocument.js @@ -0,0 +1,197 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const EventEmitter = require('events').EventEmitter; +const Subdocument = require('./subdocument'); +const utils = require('../utils'); + +const documentArrayParent = require('../helpers/symbols').documentArrayParent; + +/** + * A constructor. + * + * @param {Object} obj js object returned from the db + * @param {MongooseDocumentArray} parentArr the parent array of this document + * @param {Boolean} skipId + * @param {Object} fields + * @param {Number} index + * @inherits Document + * @api private + */ + +function ArraySubdocument(obj, parentArr, skipId, fields, index) { + if (utils.isMongooseDocumentArray(parentArr)) { + this.__parentArray = parentArr; + this[documentArrayParent] = parentArr.$parent(); + } else { + this.__parentArray = undefined; + this[documentArrayParent] = undefined; + } + this.$setIndex(index); + this.$__parent = this[documentArrayParent]; + + let options; + if (typeof skipId === 'object' && skipId != null) { + options = { isNew: true, ...skipId }; + skipId = undefined; + } else { + options = { isNew: true }; + } + + Subdocument.call(this, obj, fields, this[documentArrayParent], skipId, options); +} + +/*! + * Inherit from Subdocument + */ +ArraySubdocument.prototype = Object.create(Subdocument.prototype); +ArraySubdocument.prototype.constructor = ArraySubdocument; + +Object.defineProperty(ArraySubdocument.prototype, '$isSingleNested', { + configurable: false, + writable: false, + value: false +}); + +Object.defineProperty(ArraySubdocument.prototype, '$isDocumentArrayElement', { + configurable: false, + writable: false, + value: true +}); + +for (const i in EventEmitter.prototype) { + ArraySubdocument[i] = EventEmitter.prototype[i]; +} + +/*! + * ignore + */ + +ArraySubdocument.prototype.$setIndex = function(index) { + this.__index = index; + + if (this.$__ != null && this.$__.validationError != null) { + const keys = Object.keys(this.$__.validationError.errors); + for (const key of keys) { + this.invalidate(key, this.$__.validationError.errors[key]); + } + } +}; + +/*! + * ignore + */ + +ArraySubdocument.prototype.populate = function() { + throw new Error('Mongoose does not support calling populate() on nested ' + + 'docs. Instead of `doc.arr[0].populate("path")`, use ' + + '`doc.populate("arr.0.path")`'); +}; + +/*! + * ignore + */ + +ArraySubdocument.prototype.$__removeFromParent = function() { + const _id = this._doc._id; + if (!_id) { + throw new Error('For your own good, Mongoose does not know ' + + 'how to remove an ArraySubdocument that has no _id'); + } + this.__parentArray.pull({ _id: _id }); +}; + +/** + * Returns the full path to this document. If optional `path` is passed, it is appended to the full path. + * + * @param {String} [path] + * @param {Boolean} [skipIndex] Skip adding the array index. For example `arr.foo` instead of `arr.0.foo`. + * @return {String} + * @api private + * @method $__fullPath + * @memberOf ArraySubdocument + * @instance + */ + +ArraySubdocument.prototype.$__fullPath = function(path, skipIndex) { + if (this.__index == null) { + return null; + } + if (!this.$__.fullPath) { + this.ownerDocument(); + } + + if (skipIndex) { + return path ? + this.$__.fullPath + '.' + path : + this.$__.fullPath; + } + + return path ? + this.$__.fullPath + '.' + this.__index + '.' + path : + this.$__.fullPath + '.' + this.__index; +}; + +/** + * Given a path relative to this document, return the path relative + * to the top-level document. + * @method $__pathRelativeToParent + * @memberOf ArraySubdocument + * @instance + * @api private + */ + +ArraySubdocument.prototype.$__pathRelativeToParent = function(path, skipIndex) { + if (this.__index == null || (!this.__parentArray || !this.__parentArray.$path)) { + return null; + } + if (skipIndex) { + return path == null ? this.__parentArray.$path() : this.__parentArray.$path() + '.' + path; + } + if (path == null) { + return this.__parentArray.$path() + '.' + this.__index; + } + return this.__parentArray.$path() + '.' + this.__index + '.' + path; +}; + +/** + * Returns this sub-documents parent document. + * @method $parent + * @memberOf ArraySubdocument + * @instance + * @api public + */ + +ArraySubdocument.prototype.$parent = function() { + return this[documentArrayParent]; +}; + +/** + * Returns this subdocument's parent array. + * + * #### Example: + * + * const Test = mongoose.model('Test', new Schema({ + * docArr: [{ name: String }] + * })); + * const doc = new Test({ docArr: [{ name: 'test subdoc' }] }); + * + * doc.docArr[0].parentArray() === doc.docArr; // true + * + * @api public + * @method parentArray + * @returns DocumentArray + */ + +ArraySubdocument.prototype.parentArray = function() { + return this.__parentArray; +}; + +/*! + * Module exports. + */ + +module.exports = ArraySubdocument; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/buffer.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/buffer.js new file mode 100644 index 000000000..4e18a2ef4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/buffer.js @@ -0,0 +1,277 @@ +/*! + * Module dependencies. + */ + +'use strict'; + +const Binary = require('bson').Binary; +const utils = require('../utils'); + +/** + * Mongoose Buffer constructor. + * + * Values always have to be passed to the constructor to initialize. + * + * @param {Buffer} value + * @param {String} encode + * @param {Number} offset + * @api private + * @inherits Buffer https://nodejs.org/api/buffer.html + * @see https://bit.ly/f6CnZU + */ + +function MongooseBuffer(value, encode, offset) { + let val = value; + if (value == null) { + val = 0; + } + + let encoding; + let path; + let doc; + + if (Array.isArray(encode)) { + // internal casting + path = encode[0]; + doc = encode[1]; + } else { + encoding = encode; + } + + let buf; + if (typeof val === 'number' || val instanceof Number) { + buf = Buffer.alloc(val); + } else { // string, array or object { type: 'Buffer', data: [...] } + buf = Buffer.from(val, encoding, offset); + } + utils.decorate(buf, MongooseBuffer.mixin); + buf.isMongooseBuffer = true; + + // make sure these internal props don't show up in Object.keys() + buf[MongooseBuffer.pathSymbol] = path; + buf[parentSymbol] = doc; + + buf._subtype = 0; + return buf; +} + +const pathSymbol = Symbol.for('mongoose#Buffer#_path'); +const parentSymbol = Symbol.for('mongoose#Buffer#_parent'); +MongooseBuffer.pathSymbol = pathSymbol; + +/*! + * Inherit from Buffer. + */ + +MongooseBuffer.mixin = { + + /** + * Default subtype for the Binary representing this Buffer + * + * @api private + * @property _subtype + * @memberOf MongooseBuffer.mixin + * @static + */ + + _subtype: undefined, + + /** + * Marks this buffer as modified. + * + * @api private + * @method _markModified + * @memberOf MongooseBuffer.mixin + * @static + */ + + _markModified: function() { + const parent = this[parentSymbol]; + + if (parent) { + parent.markModified(this[MongooseBuffer.pathSymbol]); + } + return this; + }, + + /** + * Writes the buffer. + * + * @api public + * @method write + * @memberOf MongooseBuffer.mixin + * @static + */ + + write: function() { + const written = Buffer.prototype.write.apply(this, arguments); + + if (written > 0) { + this._markModified(); + } + + return written; + }, + + /** + * Copies the buffer. + * + * #### Note: + * + * `Buffer#copy` does not mark `target` as modified so you must copy from a `MongooseBuffer` for it to work as expected. This is a work around since `copy` modifies the target, not this. + * + * @return {Number} The number of bytes copied. + * @param {Buffer} target + * @method copy + * @memberOf MongooseBuffer.mixin + * @static + */ + + copy: function(target) { + const ret = Buffer.prototype.copy.apply(this, arguments); + + if (target && target.isMongooseBuffer) { + target._markModified(); + } + + return ret; + } +}; + +/*! + * Compile other Buffer methods marking this buffer as modified. + */ + +utils.each( + [ + // node < 0.5 + 'writeUInt8', 'writeUInt16', 'writeUInt32', 'writeInt8', 'writeInt16', 'writeInt32', + 'writeFloat', 'writeDouble', 'fill', + 'utf8Write', 'binaryWrite', 'asciiWrite', 'set', + + // node >= 0.5 + 'writeUInt16LE', 'writeUInt16BE', 'writeUInt32LE', 'writeUInt32BE', + 'writeInt16LE', 'writeInt16BE', 'writeInt32LE', 'writeInt32BE', 'writeFloatLE', 'writeFloatBE', 'writeDoubleLE', 'writeDoubleBE'] + , function(method) { + if (!Buffer.prototype[method]) { + return; + } + MongooseBuffer.mixin[method] = function() { + const ret = Buffer.prototype[method].apply(this, arguments); + this._markModified(); + return ret; + }; + }); + +/** + * Converts this buffer to its Binary type representation. + * + * #### SubTypes: + * + * const bson = require('bson') + * bson.BSON_BINARY_SUBTYPE_DEFAULT + * bson.BSON_BINARY_SUBTYPE_FUNCTION + * bson.BSON_BINARY_SUBTYPE_BYTE_ARRAY + * bson.BSON_BINARY_SUBTYPE_UUID + * bson.BSON_BINARY_SUBTYPE_MD5 + * bson.BSON_BINARY_SUBTYPE_USER_DEFINED + * doc.buffer.toObject(bson.BSON_BINARY_SUBTYPE_USER_DEFINED); + * + * @see bsonspec https://bsonspec.org/#/specification + * @param {Hex} [subtype] + * @return {Binary} + * @api public + * @method toObject + * @memberOf MongooseBuffer + */ + +MongooseBuffer.mixin.toObject = function(options) { + const subtype = typeof options === 'number' + ? options + : (this._subtype || 0); + return new Binary(Buffer.from(this), subtype); +}; + +MongooseBuffer.mixin.$toObject = MongooseBuffer.mixin.toObject; + +/** + * Converts this buffer for storage in MongoDB, including subtype + * + * @return {Binary} + * @api public + * @method toBSON + * @memberOf MongooseBuffer + */ + +MongooseBuffer.mixin.toBSON = function() { + return new Binary(this, this._subtype || 0); +}; + +/** + * Determines if this buffer is equals to `other` buffer + * + * @param {Buffer} other + * @return {Boolean} + * @method equals + * @memberOf MongooseBuffer + */ + +MongooseBuffer.mixin.equals = function(other) { + if (!Buffer.isBuffer(other)) { + return false; + } + + if (this.length !== other.length) { + return false; + } + + for (let i = 0; i < this.length; ++i) { + if (this[i] !== other[i]) { + return false; + } + } + + return true; +}; + +/** + * Sets the subtype option and marks the buffer modified. + * + * #### SubTypes: + * + * const bson = require('bson') + * bson.BSON_BINARY_SUBTYPE_DEFAULT + * bson.BSON_BINARY_SUBTYPE_FUNCTION + * bson.BSON_BINARY_SUBTYPE_BYTE_ARRAY + * bson.BSON_BINARY_SUBTYPE_UUID + * bson.BSON_BINARY_SUBTYPE_MD5 + * bson.BSON_BINARY_SUBTYPE_USER_DEFINED + * + * doc.buffer.subtype(bson.BSON_BINARY_SUBTYPE_UUID); + * + * @see bsonspec https://bsonspec.org/#/specification + * @param {Hex} subtype + * @api public + * @method subtype + * @memberOf MongooseBuffer + */ + +MongooseBuffer.mixin.subtype = function(subtype) { + if (typeof subtype !== 'number') { + throw new TypeError('Invalid subtype. Expected a number'); + } + + if (this._subtype !== subtype) { + this._markModified(); + } + + this._subtype = subtype; +}; + +/*! + * Module exports. + */ + +MongooseBuffer.Binary = Binary; + +module.exports = MongooseBuffer; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/decimal128.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/decimal128.js new file mode 100644 index 000000000..1250b41a1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/decimal128.js @@ -0,0 +1,13 @@ +/** + * Decimal128 type constructor + * + * #### Example: + * + * const id = new mongoose.Types.Decimal128('3.1415'); + * + * @constructor Decimal128 + */ + +'use strict'; + +module.exports = require('bson').Decimal128; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/index.js new file mode 100644 index 000000000..4877f1a30 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/index.js @@ -0,0 +1,113 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const ArrayMethods = require('../array/methods'); +const DocumentArrayMethods = require('./methods'); +const Document = require('../../document'); + +const arrayAtomicsSymbol = require('../../helpers/symbols').arrayAtomicsSymbol; +const arrayAtomicsBackupSymbol = require('../../helpers/symbols').arrayAtomicsBackupSymbol; +const arrayParentSymbol = require('../../helpers/symbols').arrayParentSymbol; +const arrayPathSymbol = require('../../helpers/symbols').arrayPathSymbol; +const arraySchemaSymbol = require('../../helpers/symbols').arraySchemaSymbol; + +const _basePush = Array.prototype.push; +const numberRE = /^\d+$/; +/** + * DocumentArray constructor + * + * @param {Array} values + * @param {String} path the path to this array + * @param {Document} doc parent document + * @api private + * @return {MongooseDocumentArray} + * @inherits MongooseArray + * @see https://bit.ly/f6CnZU + */ + +function MongooseDocumentArray(values, path, doc) { + const __array = []; + + const internals = { + [arrayAtomicsSymbol]: {}, + [arrayAtomicsBackupSymbol]: void 0, + [arrayPathSymbol]: path, + [arraySchemaSymbol]: void 0, + [arrayParentSymbol]: void 0 + }; + + if (Array.isArray(values)) { + if (values[arrayPathSymbol] === path && + values[arrayParentSymbol] === doc) { + internals[arrayAtomicsSymbol] = Object.assign({}, values[arrayAtomicsSymbol]); + } + values.forEach(v => { + _basePush.call(__array, v); + }); + } + internals[arrayPathSymbol] = path; + internals.__array = __array; + + // Because doc comes from the context of another function, doc === global + // can happen if there was a null somewhere up the chain (see #3020 && #3034) + // RB Jun 17, 2015 updated to check for presence of expected paths instead + // to make more proof against unusual node environments + if (doc && doc instanceof Document) { + internals[arrayParentSymbol] = doc; + internals[arraySchemaSymbol] = doc.$__schema.path(path); + + // `schema.path()` doesn't drill into nested arrays properly yet, see + // gh-6398, gh-6602. This is a workaround because nested arrays are + // always plain non-document arrays, so once you get to a document array + // nesting is done. Matryoshka code. + while (internals[arraySchemaSymbol] != null && + internals[arraySchemaSymbol].$isMongooseArray && + !internals[arraySchemaSymbol].$isMongooseDocumentArray) { + internals[arraySchemaSymbol] = internals[arraySchemaSymbol].casterConstructor; + } + } + + const proxy = new Proxy(__array, { + get: function(target, prop) { + if (prop === 'isMongooseArray' || + prop === 'isMongooseArrayProxy' || + prop === 'isMongooseDocumentArray' || + prop === 'isMongooseDocumentArrayProxy') { + return true; + } + if (internals.hasOwnProperty(prop)) { + return internals[prop]; + } + if (DocumentArrayMethods.hasOwnProperty(prop)) { + return DocumentArrayMethods[prop]; + } + if (ArrayMethods.hasOwnProperty(prop)) { + return ArrayMethods[prop]; + } + + return __array[prop]; + }, + set: function(target, prop, value) { + if (typeof prop === 'string' && numberRE.test(prop)) { + DocumentArrayMethods.set.call(proxy, prop, value, false); + } else if (internals.hasOwnProperty(prop)) { + internals[prop] = value; + } else { + __array[prop] = value; + } + + return true; + } + }); + + return proxy; +} + +/*! + * Module exports. + */ + +module.exports = MongooseDocumentArray; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/isMongooseDocumentArray.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/isMongooseDocumentArray.js new file mode 100644 index 000000000..6e6a16907 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/isMongooseDocumentArray.js @@ -0,0 +1,5 @@ +'use strict'; + +exports.isMongooseDocumentArray = function(mongooseDocumentArray) { + return Array.isArray(mongooseDocumentArray) && mongooseDocumentArray.isMongooseDocumentArray; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/methods/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/methods/index.js new file mode 100644 index 000000000..00b47c434 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/documentArray/methods/index.js @@ -0,0 +1,394 @@ +'use strict'; + +const ArrayMethods = require('../../array/methods'); +const Document = require('../../../document'); +const castObjectId = require('../../../cast/objectid'); +const getDiscriminatorByValue = require('../../../helpers/discriminator/getDiscriminatorByValue'); +const internalToObjectOptions = require('../../../options').internalToObjectOptions; +const utils = require('../../../utils'); +const isBsonType = require('../../../helpers/isBsonType'); + +const arrayParentSymbol = require('../../../helpers/symbols').arrayParentSymbol; +const arrayPathSymbol = require('../../../helpers/symbols').arrayPathSymbol; +const arraySchemaSymbol = require('../../../helpers/symbols').arraySchemaSymbol; +const documentArrayParent = require('../../../helpers/symbols').documentArrayParent; + +const _baseToString = Array.prototype.toString; + +const methods = { + /*! + * ignore + */ + + toBSON() { + return this.toObject(internalToObjectOptions); + }, + + toString() { + return _baseToString.call(this.__array.map(subdoc => { + if (subdoc != null && subdoc.$__ != null) { + return subdoc.toString(); + } + return subdoc; + })); + }, + + /*! + * ignore + */ + + getArrayParent() { + return this[arrayParentSymbol]; + }, + + /** + * Overrides MongooseArray#cast + * + * @method _cast + * @api private + * @memberOf MongooseDocumentArray + */ + + _cast(value, index, options) { + if (this[arraySchemaSymbol] == null) { + return value; + } + let Constructor = this[arraySchemaSymbol].casterConstructor; + const isInstance = Constructor.$isMongooseDocumentArray ? + utils.isMongooseDocumentArray(value) : + value instanceof Constructor; + if (isInstance || + // Hack re: #5001, see #5005 + (value && value.constructor && value.constructor.baseCasterConstructor === Constructor)) { + if (!(value[documentArrayParent] && value.__parentArray)) { + // value may have been created using array.create() + value[documentArrayParent] = this[arrayParentSymbol]; + value.__parentArray = this; + } + value.$setIndex(index); + return value; + } + + if (value === undefined || value === null) { + return null; + } + + // handle cast('string') or cast(ObjectId) etc. + // only objects are permitted so we can safely assume that + // non-objects are to be interpreted as _id + if (Buffer.isBuffer(value) || + isBsonType(value, 'ObjectId') || !utils.isObject(value)) { + value = { _id: value }; + } + + if (value && + Constructor.discriminators && + Constructor.schema && + Constructor.schema.options && + Constructor.schema.options.discriminatorKey) { + if (typeof value[Constructor.schema.options.discriminatorKey] === 'string' && + Constructor.discriminators[value[Constructor.schema.options.discriminatorKey]]) { + Constructor = Constructor.discriminators[value[Constructor.schema.options.discriminatorKey]]; + } else { + const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, value[Constructor.schema.options.discriminatorKey]); + if (constructorByValue) { + Constructor = constructorByValue; + } + } + } + + if (Constructor.$isMongooseDocumentArray) { + return Constructor.cast(value, this, undefined, undefined, index); + } + const ret = new Constructor(value, this, options, undefined, index); + ret.isNew = true; + return ret; + }, + + /** + * Searches array items for the first document with a matching _id. + * + * #### Example: + * + * const embeddedDoc = m.array.id(some_id); + * + * @return {EmbeddedDocument|null} the subdocument or null if not found. + * @param {ObjectId|String|Number|Buffer} id + * @TODO cast to the _id based on schema for proper comparison + * @method id + * @api public + * @memberOf MongooseDocumentArray + */ + + id(id) { + let casted; + let sid; + let _id; + + try { + casted = castObjectId(id).toString(); + } catch (e) { + casted = null; + } + + for (const val of this) { + if (!val) { + continue; + } + + _id = val.get('_id'); + + if (_id === null || typeof _id === 'undefined') { + continue; + } else if (_id instanceof Document) { + sid || (sid = String(id)); + if (sid == _id._id) { + return val; + } + } else if (!isBsonType(id, 'ObjectId') && !isBsonType(_id, 'ObjectId')) { + if (id == _id || utils.deepEqual(id, _id)) { + return val; + } + } else if (casted == _id) { + return val; + } + } + + return null; + }, + + /** + * Returns a native js Array of plain js objects + * + * #### Note: + * + * _Each sub-document is converted to a plain object by calling its `#toObject` method._ + * + * @param {Object} [options] optional options to pass to each documents `toObject` method call during conversion + * @return {Array} + * @method toObject + * @api public + * @memberOf MongooseDocumentArray + */ + + toObject(options) { + // `[].concat` coerces the return value into a vanilla JS array, rather + // than a Mongoose array. + return [].concat(this.map(function(doc) { + if (doc == null) { + return null; + } + if (typeof doc.toObject !== 'function') { + return doc; + } + return doc.toObject(options); + })); + }, + + $toObject() { + return this.constructor.prototype.toObject.apply(this, arguments); + }, + + /** + * Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking. + * + * @param {...Object} [args] + * @api public + * @method push + * @memberOf MongooseDocumentArray + */ + + push() { + const ret = ArrayMethods.push.apply(this, arguments); + + _updateParentPopulated(this); + + return ret; + }, + + /** + * Pulls items from the array atomically. + * + * @param {...Object} [args] + * @api public + * @method pull + * @memberOf MongooseDocumentArray + */ + + pull() { + const ret = ArrayMethods.pull.apply(this, arguments); + + _updateParentPopulated(this); + + return ret; + }, + + /** + * Wraps [`Array#shift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking. + * @api private + */ + + shift() { + const ret = ArrayMethods.shift.apply(this, arguments); + + _updateParentPopulated(this); + + return ret; + }, + + /** + * Wraps [`Array#splice`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/splice) with proper change tracking and casting. + * @api private + */ + + splice() { + const ret = ArrayMethods.splice.apply(this, arguments); + + _updateParentPopulated(this); + + return ret; + }, + + /** + * Helper for console.log + * + * @method inspect + * @api public + * @memberOf MongooseDocumentArray + */ + + inspect() { + return this.toObject(); + }, + + /** + * Creates a subdocument casted to this schema. + * + * This is the same subdocument constructor used for casting. + * + * @param {Object} obj the value to cast to this arrays SubDocument schema + * @method create + * @api public + * @memberOf MongooseDocumentArray + */ + + create(obj) { + let Constructor = this[arraySchemaSymbol].casterConstructor; + if (obj && + Constructor.discriminators && + Constructor.schema && + Constructor.schema.options && + Constructor.schema.options.discriminatorKey) { + if (typeof obj[Constructor.schema.options.discriminatorKey] === 'string' && + Constructor.discriminators[obj[Constructor.schema.options.discriminatorKey]]) { + Constructor = Constructor.discriminators[obj[Constructor.schema.options.discriminatorKey]]; + } else { + const constructorByValue = getDiscriminatorByValue(Constructor.discriminators, obj[Constructor.schema.options.discriminatorKey]); + if (constructorByValue) { + Constructor = constructorByValue; + } + } + } + + return new Constructor(obj, this); + }, + + /*! + * ignore + */ + + notify(event) { + const _this = this; + return function notify(val, _arr) { + _arr = _arr || _this; + let i = _arr.length; + while (i--) { + if (_arr[i] == null) { + continue; + } + switch (event) { + // only swap for save event for now, we may change this to all event types later + case 'save': + val = _this[i]; + break; + default: + // NO-OP + break; + } + + if (utils.isMongooseArray(_arr[i])) { + notify(val, _arr[i]); + } else if (_arr[i]) { + _arr[i].emit(event, val); + } + } + }; + }, + + set(i, val, skipModified) { + const arr = this.__array; + if (skipModified) { + arr[i] = val; + return this; + } + const value = methods._cast.call(this, val, i); + methods._markModified.call(this, i); + arr[i] = value; + return this; + }, + + _markModified(elem, embeddedPath) { + const parent = this[arrayParentSymbol]; + let dirtyPath; + + if (parent) { + dirtyPath = this[arrayPathSymbol]; + + if (arguments.length) { + if (embeddedPath != null) { + // an embedded doc bubbled up the change + const index = elem.__index; + dirtyPath = dirtyPath + '.' + index + '.' + embeddedPath; + } else { + // directly set an index + dirtyPath = dirtyPath + '.' + elem; + } + } + + if (dirtyPath != null && dirtyPath.endsWith('.$')) { + return this; + } + + parent.markModified(dirtyPath, arguments.length !== 0 ? elem : parent); + } + + return this; + } +}; + +module.exports = methods; + +/** + * If this is a document array, each element may contain single + * populated paths, so we need to modify the top-level document's + * populated cache. See gh-8247, gh-8265. + * @param {Array} arr + * @api private + */ + +function _updateParentPopulated(arr) { + const parent = arr[arrayParentSymbol]; + if (!parent || parent.$__.populated == null) return; + + const populatedPaths = Object.keys(parent.$__.populated). + filter(p => p.startsWith(arr[arrayPathSymbol] + '.')); + + for (const path of populatedPaths) { + const remnant = path.slice((arr[arrayPathSymbol] + '.').length); + if (!Array.isArray(parent.$__.populated[path].value)) { + continue; + } + + parent.$__.populated[path].value = arr.map(val => val.$populated(remnant)); + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/index.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/index.js new file mode 100644 index 000000000..d234f6bb6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/index.js @@ -0,0 +1,22 @@ + +/*! + * Module exports. + */ + +'use strict'; + +exports.Array = require('./array'); +exports.Buffer = require('./buffer'); + +exports.Document = // @deprecate +exports.Embedded = require('./arraySubdocument'); + +exports.DocumentArray = require('./documentArray'); +exports.Decimal128 = require('./decimal128'); +exports.ObjectId = require('./objectid'); + +exports.Map = require('./map'); + +exports.Subdocument = require('./subdocument'); + +exports.UUID = require('./uuid'); diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/map.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/map.js new file mode 100644 index 000000000..4b8607df3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/map.js @@ -0,0 +1,354 @@ +'use strict'; + +const Mixed = require('../schema/mixed'); +const MongooseError = require('../error/mongooseError'); +const clone = require('../helpers/clone'); +const deepEqual = require('../utils').deepEqual; +const getConstructorName = require('../helpers/getConstructorName'); +const handleSpreadDoc = require('../helpers/document/handleSpreadDoc'); +const util = require('util'); +const specialProperties = require('../helpers/specialProperties'); +const isBsonType = require('../helpers/isBsonType'); + +const populateModelSymbol = require('../helpers/symbols').populateModelSymbol; + +/*! + * ignore + */ + +class MongooseMap extends Map { + constructor(v, path, doc, schemaType) { + if (getConstructorName(v) === 'Object') { + v = Object.keys(v).reduce((arr, key) => arr.concat([[key, v[key]]]), []); + } + super(v); + this.$__parent = doc != null && doc.$__ != null ? doc : null; + this.$__path = path; + this.$__schemaType = schemaType == null ? new Mixed(path) : schemaType; + + this.$__runDeferred(); + } + + $init(key, value) { + checkValidKey(key); + + super.set(key, value); + + if (value != null && value.$isSingleNested) { + value.$basePath = this.$__path + '.' + key; + } + } + + $__set(key, value) { + super.set(key, value); + } + + /** + * Overwrites native Map's `get()` function to support Mongoose getters. + * + * @api public + * @method get + * @memberOf Map + */ + + get(key, options) { + if (isBsonType(key, 'ObjectId')) { + key = key.toString(); + } + + options = options || {}; + if (options.getters === false) { + return super.get(key); + } + return this.$__schemaType.applyGetters(super.get(key), this.$__parent); + } + + /** + * Overwrites native Map's `set()` function to support setters, `populate()`, + * and change tracking. Note that Mongoose maps _only_ support strings and + * ObjectIds as keys. + * + * #### Example: + * + * doc.myMap.set('test', 42); // works + * doc.myMap.set({ obj: 42 }, 42); // Throws "Mongoose maps only support string keys" + * + * @api public + * @method set + * @memberOf Map + */ + + set(key, value) { + if (isBsonType(key, 'ObjectId')) { + key = key.toString(); + } + + checkValidKey(key); + value = handleSpreadDoc(value); + + // Weird, but because you can't assign to `this` before calling `super()` + // you can't get access to `$__schemaType` to cast in the initial call to + // `set()` from the `super()` constructor. + + if (this.$__schemaType == null) { + this.$__deferred = this.$__deferred || []; + this.$__deferred.push({ key: key, value: value }); + return; + } + + let _fullPath; + const parent = this.$__parent; + const populated = parent != null && parent.$__ && parent.$__.populated ? + parent.$populated(fullPath.call(this), true) || parent.$populated(this.$__path, true) : + null; + const priorVal = this.get(key); + + if (populated != null) { + if (this.$__schemaType.$isSingleNested) { + throw new MongooseError( + 'Cannot manually populate single nested subdoc underneath Map ' + + `at path "${this.$__path}". Try using an array instead of a Map.` + ); + } + if (Array.isArray(value) && this.$__schemaType.$isMongooseArray) { + value = value.map(v => { + if (v.$__ == null) { + v = new populated.options[populateModelSymbol](v); + } + // Doesn't support single nested "in-place" populate + v.$__.wasPopulated = { value: v._id }; + return v; + }); + } else if (value != null) { + if (value.$__ == null) { + value = new populated.options[populateModelSymbol](value); + } + // Doesn't support single nested "in-place" populate + value.$__.wasPopulated = { value: value._id }; + } + } else { + try { + const options = this.$__schemaType.$isMongooseDocumentArray || this.$__schemaType.$isSingleNested ? + { path: fullPath.call(this) } : + null; + value = this.$__schemaType.applySetters( + value, + this.$__parent, + false, + this.get(key), + options + ); + } catch (error) { + if (this.$__parent != null && this.$__parent.$__ != null) { + this.$__parent.invalidate(fullPath.call(this), error); + return; + } + throw error; + } + } + + super.set(key, value); + + if (parent != null && parent.$__ != null && !deepEqual(value, priorVal)) { + parent.markModified(fullPath.call(this)); + } + + // Delay calculating full path unless absolutely necessary, because string + // concatenation is a bottleneck re: #13171 + function fullPath() { + if (_fullPath) { + return _fullPath; + } + _fullPath = this.$__path + '.' + key; + return _fullPath; + } + } + + /** + * Overwrites native Map's `clear()` function to support change tracking. + * + * @api public + * @method clear + * @memberOf Map + */ + + clear() { + super.clear(); + const parent = this.$__parent; + if (parent != null) { + parent.markModified(this.$__path); + } + } + + /** + * Overwrites native Map's `delete()` function to support change tracking. + * + * @api public + * @method delete + * @memberOf Map + */ + + delete(key) { + if (isBsonType(key, 'ObjectId')) { + key = key.toString(); + } + + this.set(key, undefined); + return super.delete(key); + } + + /** + * Converts this map to a native JavaScript Map so the MongoDB driver can serialize it. + * + * @api public + * @method toBSON + * @memberOf Map + */ + + toBSON() { + return new Map(this); + } + + toObject(options) { + if (options && options.flattenMaps) { + const ret = {}; + const keys = this.keys(); + for (const key of keys) { + ret[key] = clone(this.get(key), options); + } + return ret; + } + + return new Map(this); + } + + $toObject() { + return this.constructor.prototype.toObject.apply(this, arguments); + } + + /** + * Converts this map to a native JavaScript Map for `JSON.stringify()`. Set + * the `flattenMaps` option to convert this map to a POJO instead. + * + * #### Example: + * + * doc.myMap.toJSON() instanceof Map; // true + * doc.myMap.toJSON({ flattenMaps: true }) instanceof Map; // false + * + * @api public + * @method toJSON + * @param {Object} [options] + * @param {Boolean} [options.flattenMaps=false] set to `true` to convert the map to a POJO rather than a native JavaScript map + * @memberOf Map + */ + + toJSON(options) { + if (typeof (options && options.flattenMaps) === 'boolean' ? options.flattenMaps : true) { + const ret = {}; + const keys = this.keys(); + for (const key of keys) { + ret[key] = clone(this.get(key), options); + } + return ret; + } + + return new Map(this); + } + + inspect() { + return new Map(this); + } + + $__runDeferred() { + if (!this.$__deferred) { + return; + } + + for (const keyValueObject of this.$__deferred) { + this.set(keyValueObject.key, keyValueObject.value); + } + + this.$__deferred = null; + } +} + +if (util.inspect.custom) { + Object.defineProperty(MongooseMap.prototype, util.inspect.custom, { + enumerable: false, + writable: false, + configurable: false, + value: MongooseMap.prototype.inspect + }); +} + +Object.defineProperty(MongooseMap.prototype, '$__set', { + enumerable: false, + writable: true, + configurable: false +}); + +Object.defineProperty(MongooseMap.prototype, '$__parent', { + enumerable: false, + writable: true, + configurable: false +}); + +Object.defineProperty(MongooseMap.prototype, '$__path', { + enumerable: false, + writable: true, + configurable: false +}); + +Object.defineProperty(MongooseMap.prototype, '$__schemaType', { + enumerable: false, + writable: true, + configurable: false +}); + +/** + * Set to `true` for all Mongoose map instances + * + * @api public + * @property $isMongooseMap + * @memberOf MongooseMap + * @instance + */ + +Object.defineProperty(MongooseMap.prototype, '$isMongooseMap', { + enumerable: false, + writable: false, + configurable: false, + value: true +}); + +Object.defineProperty(MongooseMap.prototype, '$__deferredCalls', { + enumerable: false, + writable: false, + configurable: false, + value: true +}); + +/** + * Since maps are stored as objects under the hood, keys must be strings + * and can't contain any invalid characters + * @param {String} key + * @api private + */ + +function checkValidKey(key) { + const keyType = typeof key; + if (keyType !== 'string') { + throw new TypeError(`Mongoose maps only support string keys, got ${keyType}`); + } + if (key.startsWith('$')) { + throw new Error(`Mongoose maps do not support keys that start with "$", got "${key}"`); + } + if (key.includes('.')) { + throw new Error(`Mongoose maps do not support keys that contain ".", got "${key}"`); + } + if (specialProperties.has(key)) { + throw new Error(`Mongoose maps do not support reserved key name "${key}"`); + } +} + +module.exports = MongooseMap; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/objectid.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/objectid.js new file mode 100644 index 000000000..d38c22365 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/objectid.js @@ -0,0 +1,41 @@ +/** + * ObjectId type constructor + * + * #### Example: + * + * const id = new mongoose.Types.ObjectId; + * + * @constructor ObjectId + */ + +'use strict'; + +const ObjectId = require('bson').ObjectId; +const objectIdSymbol = require('../helpers/symbols').objectIdSymbol; + +/** + * Getter for convenience with populate, see gh-6115 + * @api private + */ + +Object.defineProperty(ObjectId.prototype, '_id', { + enumerable: false, + configurable: true, + get: function() { + return this; + } +}); + +/*! + * Convenience `valueOf()` to allow comparing ObjectIds using double equals re: gh-7299 + */ + +if (!ObjectId.prototype.hasOwnProperty('valueOf')) { + ObjectId.prototype.valueOf = function objectIdValueOf() { + return this.toString(); + }; +} + +ObjectId.prototype[objectIdSymbol] = true; + +module.exports = ObjectId; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/subdocument.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/subdocument.js new file mode 100644 index 000000000..014babe6c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/subdocument.js @@ -0,0 +1,432 @@ +'use strict'; + +const Document = require('../document'); +const immediate = require('../helpers/immediate'); +const internalToObjectOptions = require('../options').internalToObjectOptions; +const util = require('util'); +const utils = require('../utils'); + +module.exports = Subdocument; + +/** + * Subdocument constructor. + * + * @inherits Document + * @api private + */ + +function Subdocument(value, fields, parent, skipId, options) { + if (typeof skipId === 'object' && skipId != null && options == null) { + options = skipId; + skipId = undefined; + } + if (parent != null) { + // If setting a nested path, should copy isNew from parent re: gh-7048 + const parentOptions = { isNew: parent.isNew }; + if ('defaults' in parent.$__) { + parentOptions.defaults = parent.$__.defaults; + } + options = Object.assign(parentOptions, options); + } + if (options != null && options.path != null) { + this.$basePath = options.path; + } + Document.call(this, value, fields, skipId, options); + + delete this.$__.priorDoc; +} + +Subdocument.prototype = Object.create(Document.prototype); + +Object.defineProperty(Subdocument.prototype, '$isSubdocument', { + configurable: false, + writable: false, + value: true +}); + +Object.defineProperty(Subdocument.prototype, '$isSingleNested', { + configurable: false, + writable: false, + value: true +}); + +/*! + * ignore + */ + +Subdocument.prototype.toBSON = function() { + return this.toObject(internalToObjectOptions); +}; + +/** + * Used as a stub for middleware + * + * #### Note: + * + * _This is a no-op. Does not actually save the doc to the db._ + * + * @param {Function} [fn] + * @return {Promise} resolved Promise + * @api private + */ + +Subdocument.prototype.save = async function save(options) { + options = options || {}; + + if (!options.suppressWarning) { + utils.warn('mongoose: calling `save()` on a subdoc does **not** save ' + + 'the document to MongoDB, it only runs save middleware. ' + + 'Use `subdoc.save({ suppressWarning: true })` to hide this warning ' + + 'if you\'re sure this behavior is right for your app.'); + } + + return new Promise((resolve, reject) => { + this.$__save((err) => { + if (err != null) { + return reject(err); + } + resolve(this); + }); + }); +}; + +/** + * Given a path relative to this document, return the path relative + * to the top-level document. + * @param {String} path + * @method $__fullPath + * @memberOf Subdocument + * @instance + * @returns {String} + * @api private + */ + +Subdocument.prototype.$__fullPath = function(path) { + if (!this.$__.fullPath) { + this.ownerDocument(); + } + + return path ? + this.$__.fullPath + '.' + path : + this.$__.fullPath; +}; + +/** + * Given a path relative to this document, return the path relative + * to the parent document. + * @param {String} p + * @returns {String} + * @method $__pathRelativeToParent + * @memberOf Subdocument + * @instance + * @api private + */ + +Subdocument.prototype.$__pathRelativeToParent = function(p) { + if (p == null) { + return this.$basePath; + } + return [this.$basePath, p].join('.'); +}; + +/** + * Used as a stub for middleware + * + * #### Note: + * + * _This is a no-op. Does not actually save the doc to the db._ + * + * @param {Function} [fn] + * @method $__save + * @api private + */ + +Subdocument.prototype.$__save = function(fn) { + return immediate(() => fn(null, this)); +}; + +/*! + * ignore + */ + +Subdocument.prototype.$isValid = function(path) { + const parent = this.$parent(); + const fullPath = this.$__pathRelativeToParent(path); + if (parent != null && fullPath != null) { + return parent.$isValid(fullPath); + } + return Document.prototype.$isValid.call(this, path); +}; + +/*! + * ignore + */ + +Subdocument.prototype.markModified = function(path) { + Document.prototype.markModified.call(this, path); + const parent = this.$parent(); + const fullPath = this.$__pathRelativeToParent(path); + + if (parent == null || fullPath == null) { + return; + } + + const myPath = this.$__pathRelativeToParent().replace(/\.$/, ''); + if (parent.isDirectModified(myPath) || this.isNew) { + return; + } + this.$__parent.markModified(fullPath, this); +}; + +/*! + * ignore + */ + +Subdocument.prototype.isModified = function(paths, options, modifiedPaths) { + const parent = this.$parent(); + if (parent != null) { + if (Array.isArray(paths) || typeof paths === 'string') { + paths = (Array.isArray(paths) ? paths : paths.split(' ')); + paths = paths.map(p => this.$__pathRelativeToParent(p)).filter(p => p != null); + } else if (!paths) { + paths = this.$__pathRelativeToParent(); + } + + return parent.$isModified(paths, options, modifiedPaths); + } + + return Document.prototype.isModified.call(this, paths, options, modifiedPaths); +}; + +/** + * Marks a path as valid, removing existing validation errors. + * + * @param {String} path the field to mark as valid + * @api private + * @method $markValid + * @memberOf Subdocument + */ + +Subdocument.prototype.$markValid = function(path) { + Document.prototype.$markValid.call(this, path); + const parent = this.$parent(); + const fullPath = this.$__pathRelativeToParent(path); + if (parent != null && fullPath != null) { + parent.$markValid(fullPath); + } +}; + +/*! + * ignore + */ + +Subdocument.prototype.invalidate = function(path, err, val) { + Document.prototype.invalidate.call(this, path, err, val); + + const parent = this.$parent(); + const fullPath = this.$__pathRelativeToParent(path); + if (parent != null && fullPath != null) { + parent.invalidate(fullPath, err, val); + } else if (err.kind === 'cast' || err.name === 'CastError' || fullPath == null) { + throw err; + } + + return this.ownerDocument().$__.validationError; +}; + +/*! + * ignore + */ + +Subdocument.prototype.$ignore = function(path) { + Document.prototype.$ignore.call(this, path); + const parent = this.$parent(); + const fullPath = this.$__pathRelativeToParent(path); + if (parent != null && fullPath != null) { + parent.$ignore(fullPath); + } +}; + +/** + * Returns the top level document of this sub-document. + * + * @return {Document} + */ + +Subdocument.prototype.ownerDocument = function() { + if (this.$__.ownerDocument) { + return this.$__.ownerDocument; + } + + let parent = this; // eslint-disable-line consistent-this + const paths = []; + const seenDocs = new Set([parent]); + + while (true) { + if (typeof parent.$__pathRelativeToParent !== 'function') { + break; + } + paths.unshift(parent.$__pathRelativeToParent(void 0, true)); + const _parent = parent.$parent(); + if (_parent == null) { + break; + } + parent = _parent; + if (seenDocs.has(parent)) { + throw new Error('Infinite subdocument loop: subdoc with _id ' + parent._id + ' is a parent of itself'); + } + + seenDocs.add(parent); + } + + this.$__.fullPath = paths.join('.'); + + this.$__.ownerDocument = parent; + return this.$__.ownerDocument; +}; + +/*! + * ignore + */ + +Subdocument.prototype.$__fullPathWithIndexes = function() { + let parent = this; // eslint-disable-line consistent-this + const paths = []; + const seenDocs = new Set([parent]); + + while (true) { + if (typeof parent.$__pathRelativeToParent !== 'function') { + break; + } + paths.unshift(parent.$__pathRelativeToParent(void 0, false)); + const _parent = parent.$parent(); + if (_parent == null) { + break; + } + parent = _parent; + if (seenDocs.has(parent)) { + throw new Error('Infinite subdocument loop: subdoc with _id ' + parent._id + ' is a parent of itself'); + } + + seenDocs.add(parent); + } + + return paths.join('.'); +}; + +/** + * Returns this sub-documents parent document. + * + * @api public + */ + +Subdocument.prototype.parent = function() { + return this.$__parent; +}; + +/** + * Returns this sub-documents parent document. + * + * @api public + * @method $parent + */ + +Subdocument.prototype.$parent = Subdocument.prototype.parent; + +/** + * no-op for hooks + * @param {Function} cb + * @method $__deleteOne + * @memberOf Subdocument + * @instance + * @api private + */ + +Subdocument.prototype.$__deleteOne = function(cb) { + if (cb == null) { + return; + } + return cb(null, this); +}; + +/** + * ignore + * @method $__removeFromParent + * @memberOf Subdocument + * @instance + * @api private + */ + +Subdocument.prototype.$__removeFromParent = function() { + this.$__parent.set(this.$basePath, null); +}; + +/** + * Null-out this subdoc + * + * @param {Object} [options] + * @param {Function} [callback] optional callback for compatibility with Document.prototype.remove + */ + +Subdocument.prototype.deleteOne = function(options, callback) { + if (typeof options === 'function') { + callback = options; + options = null; + } + registerRemoveListener(this); + + // If removing entire doc, no need to remove subdoc + if (!options || !options.noop) { + this.$__removeFromParent(); + } + + return this.$__deleteOne(callback); +}; + +/*! + * ignore + */ + +Subdocument.prototype.populate = function() { + throw new Error('Mongoose does not support calling populate() on nested ' + + 'docs. Instead of `doc.nested.populate("path")`, use ' + + '`doc.populate("nested.path")`'); +}; + +/** + * Helper for console.log + * + * @api public + */ + +Subdocument.prototype.inspect = function() { + return this.toObject(); +}; + +if (util.inspect.custom) { + // Avoid Node deprecation warning DEP0079 + Subdocument.prototype[util.inspect.custom] = Subdocument.prototype.inspect; +} + +/** + * Registers remove event listeners for triggering + * on subdocuments. + * + * @param {Subdocument} sub + * @api private + */ + +function registerRemoveListener(sub) { + let owner = sub.ownerDocument(); + + function emitRemove() { + owner.$removeListener('save', emitRemove); + owner.$removeListener('deleteOne', emitRemove); + sub.emit('deleteOne', sub); + sub.constructor.emit('deleteOne', sub); + owner = sub = null; + } + + owner.$on('save', emitRemove); + owner.$on('deleteOne', emitRemove); +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/types/uuid.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/uuid.js new file mode 100644 index 000000000..fc9db855f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/types/uuid.js @@ -0,0 +1,13 @@ +/** + * UUID type constructor + * + * #### Example: + * + * const id = new mongoose.Types.UUID(); + * + * @constructor UUID + */ + +'use strict'; + +module.exports = require('bson').UUID; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/utils.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/utils.js new file mode 100644 index 000000000..9af4b1272 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/utils.js @@ -0,0 +1,1016 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const UUID = require('bson').UUID; +const ms = require('ms'); +const mpath = require('mpath'); +const ObjectId = require('./types/objectid'); +const PopulateOptions = require('./options/populateOptions'); +const clone = require('./helpers/clone'); +const immediate = require('./helpers/immediate'); +const isObject = require('./helpers/isObject'); +const isMongooseArray = require('./types/array/isMongooseArray'); +const isMongooseDocumentArray = require('./types/documentArray/isMongooseDocumentArray'); +const isBsonType = require('./helpers/isBsonType'); +const isPOJO = require('./helpers/isPOJO'); +const getFunctionName = require('./helpers/getFunctionName'); +const isMongooseObject = require('./helpers/isMongooseObject'); +const promiseOrCallback = require('./helpers/promiseOrCallback'); +const schemaMerge = require('./helpers/schema/merge'); +const specialProperties = require('./helpers/specialProperties'); +const { trustedSymbol } = require('./helpers/query/trusted'); + +let Document; + +exports.specialProperties = specialProperties; + +exports.isMongooseArray = isMongooseArray.isMongooseArray; +exports.isMongooseDocumentArray = isMongooseDocumentArray.isMongooseDocumentArray; +exports.registerMongooseArray = isMongooseArray.registerMongooseArray; +exports.registerMongooseDocumentArray = isMongooseDocumentArray.registerMongooseDocumentArray; + +const oneSpaceRE = /\s/; +const manySpaceRE = /\s+/; + +/** + * Produces a collection name from model `name`. By default, just returns + * the model name + * + * @param {String} name a model name + * @param {Function} pluralize function that pluralizes the collection name + * @return {String} a collection name + * @api private + */ + +exports.toCollectionName = function(name, pluralize) { + if (name === 'system.profile') { + return name; + } + if (name === 'system.indexes') { + return name; + } + if (typeof pluralize === 'function') { + return pluralize(name); + } + return name; +}; + +/** + * Determines if `a` and `b` are deep equal. + * + * Modified from node/lib/assert.js + * + * @param {any} a a value to compare to `b` + * @param {any} b a value to compare to `a` + * @return {Boolean} + * @api private + */ + +exports.deepEqual = function deepEqual(a, b) { + if (a === b) { + return true; + } + + if (typeof a !== 'object' || typeof b !== 'object') { + return a === b; + } + + if (a instanceof Date && b instanceof Date) { + return a.getTime() === b.getTime(); + } + + if ((isBsonType(a, 'ObjectId') && isBsonType(b, 'ObjectId')) || + (isBsonType(a, 'Decimal128') && isBsonType(b, 'Decimal128'))) { + return a.toString() === b.toString(); + } + + if (a instanceof RegExp && b instanceof RegExp) { + return a.source === b.source && + a.ignoreCase === b.ignoreCase && + a.multiline === b.multiline && + a.global === b.global && + a.dotAll === b.dotAll && + a.unicode === b.unicode && + a.sticky === b.sticky && + a.hasIndices === b.hasIndices; + } + + if (a == null || b == null) { + return false; + } + + if (a.prototype !== b.prototype) { + return false; + } + + if (a instanceof Map || b instanceof Map) { + if (!(a instanceof Map) || !(b instanceof Map)) { + return false; + } + return deepEqual(Array.from(a.keys()), Array.from(b.keys())) && + deepEqual(Array.from(a.values()), Array.from(b.values())); + } + + // Handle MongooseNumbers + if (a instanceof Number && b instanceof Number) { + return a.valueOf() === b.valueOf(); + } + + if (Buffer.isBuffer(a)) { + return exports.buffer.areEqual(a, b); + } + + if (Array.isArray(a) || Array.isArray(b)) { + if (!Array.isArray(a) || !Array.isArray(b)) { + return false; + } + const len = a.length; + if (len !== b.length) { + return false; + } + for (let i = 0; i < len; ++i) { + if (!deepEqual(a[i], b[i])) { + return false; + } + } + return true; + } + + if (a.$__ != null) { + a = a._doc; + } else if (isMongooseObject(a)) { + a = a.toObject(); + } + + if (b.$__ != null) { + b = b._doc; + } else if (isMongooseObject(b)) { + b = b.toObject(); + } + + const ka = Object.keys(a); + const kb = Object.keys(b); + const kaLength = ka.length; + + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (kaLength !== kb.length) { + return false; + } + + // ~~~cheap key test + for (let i = kaLength - 1; i >= 0; i--) { + if (ka[i] !== kb[i]) { + return false; + } + } + + // equivalent values for every corresponding key, and + // ~~~possibly expensive deep test + for (const key of ka) { + if (!deepEqual(a[key], b[key])) { + return false; + } + } + + return true; +}; + +/** + * Get the last element of an array + * @param {Array} arr + */ + +exports.last = function(arr) { + if (arr.length > 0) { + return arr[arr.length - 1]; + } + return void 0; +}; + +/*! + * ignore + */ + +exports.promiseOrCallback = promiseOrCallback; + +/*! + * ignore + */ + +exports.cloneArrays = function cloneArrays(arr) { + if (!Array.isArray(arr)) { + return arr; + } + + return arr.map(el => exports.cloneArrays(el)); +}; + +/*! + * ignore + */ + +exports.omit = function omit(obj, keys) { + if (keys == null) { + return Object.assign({}, obj); + } + if (!Array.isArray(keys)) { + keys = [keys]; + } + + const ret = Object.assign({}, obj); + for (const key of keys) { + delete ret[key]; + } + return ret; +}; + +/** + * Merges `from` into `to` without overwriting existing properties. + * + * @param {Object} to + * @param {Object} from + * @param {Object} [options] + * @param {String} [path] + * @api private + */ + +exports.merge = function merge(to, from, options, path) { + options = options || {}; + + const keys = Object.keys(from); + let i = 0; + const len = keys.length; + let key; + + if (from[trustedSymbol]) { + to[trustedSymbol] = from[trustedSymbol]; + } + + path = path || ''; + const omitNested = options.omitNested || {}; + + while (i < len) { + key = keys[i++]; + if (options.omit && options.omit[key]) { + continue; + } + if (omitNested[path]) { + continue; + } + if (specialProperties.has(key)) { + continue; + } + if (to[key] == null) { + if (isPOJO(from[key])) { + to[key] = { ...from[key] }; + } else if (Array.isArray(from[key])) { + to[key] = [...from[key]]; + } else { + to[key] = from[key]; + } + } else if (exports.isObject(from[key])) { + if (!exports.isObject(to[key])) { + to[key] = {}; + } + if (from[key] != null) { + // Skip merging schemas if we're creating a discriminator schema and + // base schema has a given path as a single nested but discriminator schema + // has the path as a document array, or vice versa (gh-9534) + if (options.isDiscriminatorSchemaMerge && + (from[key].$isSingleNested && to[key].$isMongooseDocumentArray) || + (from[key].$isMongooseDocumentArray && to[key].$isSingleNested)) { + continue; + } else if (from[key].instanceOfSchema) { + if (to[key].instanceOfSchema) { + schemaMerge(to[key], from[key].clone(), options.isDiscriminatorSchemaMerge); + } else { + to[key] = from[key].clone(); + } + continue; + } else if (isBsonType(from[key], 'ObjectId')) { + to[key] = new ObjectId(from[key]); + continue; + } + } + merge(to[key], from[key], options, path ? path + '.' + key : key); + } else if (options.overwrite) { + to[key] = from[key]; + } + } +}; + +/** + * Applies toObject recursively. + * + * @param {Document|Array|Object} obj + * @return {Object} + * @api private + */ + +exports.toObject = function toObject(obj) { + Document || (Document = require('./document')); + let ret; + + if (obj == null) { + return obj; + } + + if (obj instanceof Document) { + return obj.toObject(); + } + + if (Array.isArray(obj)) { + ret = []; + + for (const doc of obj) { + ret.push(toObject(doc)); + } + + return ret; + } + + if (exports.isPOJO(obj)) { + ret = {}; + + if (obj[trustedSymbol]) { + ret[trustedSymbol] = obj[trustedSymbol]; + } + + for (const k of Object.keys(obj)) { + if (specialProperties.has(k)) { + continue; + } + ret[k] = toObject(obj[k]); + } + + return ret; + } + + return obj; +}; + +exports.isObject = isObject; + +/** + * Determines if `arg` is a plain old JavaScript object (POJO). Specifically, + * `arg` must be an object but not an instance of any special class, like String, + * ObjectId, etc. + * + * `Object.getPrototypeOf()` is part of ES5: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getPrototypeOf + * + * @param {Object|Array|String|Function|RegExp|any} arg + * @api private + * @return {Boolean} + */ + +exports.isPOJO = require('./helpers/isPOJO'); + +/** + * Determines if `arg` is an object that isn't an instance of a built-in value + * class, like Array, Buffer, ObjectId, etc. + * @param {Any} val + */ + +exports.isNonBuiltinObject = function isNonBuiltinObject(val) { + return typeof val === 'object' && + !exports.isNativeObject(val) && + !exports.isMongooseType(val) && + !(val instanceof UUID) && + val != null; +}; + +/** + * Determines if `obj` is a built-in object like an array, date, boolean, + * etc. + * @param {Any} arg + */ + +exports.isNativeObject = function(arg) { + return Array.isArray(arg) || + arg instanceof Date || + arg instanceof Boolean || + arg instanceof Number || + arg instanceof String; +}; + +/** + * Determines if `val` is an object that has no own keys + * @param {Any} val + */ + +exports.isEmptyObject = function(val) { + return val != null && + typeof val === 'object' && + Object.keys(val).length === 0; +}; + +/** + * Search if `obj` or any POJOs nested underneath `obj` has a property named + * `key` + * @param {Object} obj + * @param {String} key + */ + +exports.hasKey = function hasKey(obj, key) { + const props = Object.keys(obj); + for (const prop of props) { + if (prop === key) { + return true; + } + if (exports.isPOJO(obj[prop]) && exports.hasKey(obj[prop], key)) { + return true; + } + } + return false; +}; + +/** + * process.nextTick helper. + * + * Wraps `callback` in a try/catch + nextTick. + * + * node-mongodb-native has a habit of state corruption when an error is immediately thrown from within a collection callback. + * + * @param {Function} callback + * @api private + */ + +exports.tick = function tick(callback) { + if (typeof callback !== 'function') { + return; + } + return function() { + try { + callback.apply(this, arguments); + } catch (err) { + // only nextTick on err to get out of + // the event loop and avoid state corruption. + immediate(function() { + throw err; + }); + } + }; +}; + +/** + * Returns true if `v` is an object that can be serialized as a primitive in + * MongoDB + * @param {Any} v + */ + +exports.isMongooseType = function(v) { + return isBsonType(v, 'ObjectId') || isBsonType(v, 'Decimal128') || v instanceof Buffer; +}; + +exports.isMongooseObject = isMongooseObject; + +/** + * Converts `expires` options of index objects to `expiresAfterSeconds` options for MongoDB. + * + * @param {Object} object + * @api private + */ + +exports.expires = function expires(object) { + if (!(object && object.constructor.name === 'Object')) { + return; + } + if (!('expires' in object)) { + return; + } + + object.expireAfterSeconds = (typeof object.expires !== 'string') + ? object.expires + : Math.round(ms(object.expires) / 1000); + delete object.expires; +}; + +/** + * populate helper + * @param {String} path + * @param {String} select + * @param {Model} model + * @param {Object} match + * @param {Object} options + * @param {Any} subPopulate + * @param {Boolean} justOne + * @param {Boolean} count + */ + +exports.populate = function populate(path, select, model, match, options, subPopulate, justOne, count) { + // might have passed an object specifying all arguments + let obj = null; + if (arguments.length === 1) { + if (path instanceof PopulateOptions) { + // If reusing old populate docs, avoid reusing `_docs` because that may + // lead to bugs and memory leaks. See gh-11641 + path._docs = {}; + path._childDocs = []; + return [path]; + } + + if (Array.isArray(path)) { + const singles = makeSingles(path); + return singles.map(o => exports.populate(o)[0]); + } + + if (exports.isObject(path)) { + obj = Object.assign({}, path); + } else { + obj = { path: path }; + } + } else if (typeof model === 'object') { + obj = { + path: path, + select: select, + match: model, + options: match + }; + } else { + obj = { + path: path, + select: select, + model: model, + match: match, + options: options, + populate: subPopulate, + justOne: justOne, + count: count + }; + } + + if (typeof obj.path !== 'string') { + throw new TypeError('utils.populate: invalid path. Expected string. Got typeof `' + typeof path + '`'); + } + + return _populateObj(obj); + + // The order of select/conditions args is opposite Model.find but + // necessary to keep backward compatibility (select could be + // an array, string, or object literal). + function makeSingles(arr) { + const ret = []; + arr.forEach(function(obj) { + if (oneSpaceRE.test(obj.path)) { + const paths = obj.path.split(manySpaceRE); + paths.forEach(function(p) { + const copy = Object.assign({}, obj); + copy.path = p; + ret.push(copy); + }); + } else { + ret.push(obj); + } + }); + + return ret; + } +}; + +function _populateObj(obj) { + if (Array.isArray(obj.populate)) { + const ret = []; + obj.populate.forEach(function(obj) { + if (oneSpaceRE.test(obj.path)) { + const copy = Object.assign({}, obj); + const paths = copy.path.split(manySpaceRE); + paths.forEach(function(p) { + copy.path = p; + ret.push(exports.populate(copy)[0]); + }); + } else { + ret.push(exports.populate(obj)[0]); + } + }); + obj.populate = exports.populate(ret); + } else if (obj.populate != null && typeof obj.populate === 'object') { + obj.populate = exports.populate(obj.populate); + } + + const ret = []; + const paths = oneSpaceRE.test(obj.path) ? obj.path.split(manySpaceRE) : [obj.path]; + if (obj.options != null) { + obj.options = clone(obj.options); + } + + for (const path of paths) { + ret.push(new PopulateOptions(Object.assign({}, obj, { path: path }))); + } + + return ret; +} + +/** + * Return the value of `obj` at the given `path`. + * + * @param {String} path + * @param {Object} obj + * @param {Any} map + */ + +exports.getValue = function(path, obj, map) { + return mpath.get(path, obj, getValueLookup, map); +}; + +/*! + * ignore + */ + +const mapGetterOptions = Object.freeze({ getters: false }); + +function getValueLookup(obj, part) { + let _from = obj?._doc || obj; + if (_from != null && _from.isMongooseArrayProxy) { + _from = _from.__array; + } + return _from instanceof Map ? + _from.get(part, mapGetterOptions) : + _from[part]; +} + +/** + * Sets the value of `obj` at the given `path`. + * + * @param {String} path + * @param {Anything} val + * @param {Object} obj + * @param {Any} map + * @param {Any} _copying + */ + +exports.setValue = function(path, val, obj, map, _copying) { + mpath.set(path, val, obj, '_doc', map, _copying); +}; + +/** + * Returns an array of values from object `o`. + * + * @param {Object} o + * @return {Array} + * @api private + */ + +exports.object = {}; +exports.object.vals = function vals(o) { + const keys = Object.keys(o); + let i = keys.length; + const ret = []; + + while (i--) { + ret.push(o[keys[i]]); + } + + return ret; +}; + +const hop = Object.prototype.hasOwnProperty; + +/** + * Safer helper for hasOwnProperty checks + * + * @param {Object} obj + * @param {String} prop + */ + +exports.object.hasOwnProperty = function(obj, prop) { + return hop.call(obj, prop); +}; + +/** + * Determine if `val` is null or undefined + * + * @param {Any} val + * @return {Boolean} + */ + +exports.isNullOrUndefined = function(val) { + return val === null || val === undefined; +}; + +/*! + * ignore + */ + +exports.array = {}; + +/** + * Flattens an array. + * + * [ 1, [ 2, 3, [4] ]] -> [1,2,3,4] + * + * @param {Array} arr + * @param {Function} [filter] If passed, will be invoked with each item in the array. If `filter` returns a falsy value, the item will not be included in the results. + * @param {Array} ret + * @return {Array} + * @api private + */ + +exports.array.flatten = function flatten(arr, filter, ret) { + ret || (ret = []); + + arr.forEach(function(item) { + if (Array.isArray(item)) { + flatten(item, filter, ret); + } else { + if (!filter || filter(item)) { + ret.push(item); + } + } + }); + + return ret; +}; + +/*! + * ignore + */ + +const _hasOwnProperty = Object.prototype.hasOwnProperty; + +exports.hasUserDefinedProperty = function(obj, key) { + if (obj == null) { + return false; + } + + if (Array.isArray(key)) { + for (const k of key) { + if (exports.hasUserDefinedProperty(obj, k)) { + return true; + } + } + return false; + } + + if (_hasOwnProperty.call(obj, key)) { + return true; + } + if (typeof obj === 'object' && key in obj) { + const v = obj[key]; + return v !== Object.prototype[key] && v !== Array.prototype[key]; + } + + return false; +}; + +/*! + * ignore + */ + +const MAX_ARRAY_INDEX = Math.pow(2, 32) - 1; + +exports.isArrayIndex = function(val) { + if (typeof val === 'number') { + return val >= 0 && val <= MAX_ARRAY_INDEX; + } + if (typeof val === 'string') { + if (!/^\d+$/.test(val)) { + return false; + } + val = +val; + return val >= 0 && val <= MAX_ARRAY_INDEX; + } + + return false; +}; + +/** + * Removes duplicate values from an array + * + * [1, 2, 3, 3, 5] => [1, 2, 3, 5] + * [ ObjectId("550988ba0c19d57f697dc45e"), ObjectId("550988ba0c19d57f697dc45e") ] + * => [ObjectId("550988ba0c19d57f697dc45e")] + * + * @param {Array} arr + * @return {Array} + * @api private + */ + +exports.array.unique = function(arr) { + const primitives = new Set(); + const ids = new Set(); + const ret = []; + + for (const item of arr) { + if (typeof item === 'number' || typeof item === 'string' || item == null) { + if (primitives.has(item)) { + continue; + } + ret.push(item); + primitives.add(item); + } else if (isBsonType(item, 'ObjectId')) { + if (ids.has(item.toString())) { + continue; + } + ret.push(item); + ids.add(item.toString()); + } else { + ret.push(item); + } + } + + return ret; +}; + +exports.buffer = {}; + +/** + * Determines if two buffers are equal. + * + * @param {Buffer} a + * @param {Object} b + */ + +exports.buffer.areEqual = function(a, b) { + if (!Buffer.isBuffer(a)) { + return false; + } + if (!Buffer.isBuffer(b)) { + return false; + } + if (a.length !== b.length) { + return false; + } + for (let i = 0, len = a.length; i < len; ++i) { + if (a[i] !== b[i]) { + return false; + } + } + return true; +}; + +exports.getFunctionName = getFunctionName; + +/** + * Decorate buffers + * @param {Object} destination + * @param {Object} source + */ + +exports.decorate = function(destination, source) { + for (const key in source) { + if (specialProperties.has(key)) { + continue; + } + destination[key] = source[key]; + } +}; + +/** + * merges to with a copy of from + * + * @param {Object} to + * @param {Object} fromObj + * @api private + */ + +exports.mergeClone = function(to, fromObj) { + if (isMongooseObject(fromObj)) { + fromObj = fromObj.toObject({ + transform: false, + virtuals: false, + depopulate: true, + getters: false, + flattenDecimals: false + }); + } + const keys = Object.keys(fromObj); + const len = keys.length; + let i = 0; + let key; + + while (i < len) { + key = keys[i++]; + if (specialProperties.has(key)) { + continue; + } + if (typeof to[key] === 'undefined') { + to[key] = clone(fromObj[key], { + transform: false, + virtuals: false, + depopulate: true, + getters: false, + flattenDecimals: false + }); + } else { + let val = fromObj[key]; + if (val != null && val.valueOf && !(val instanceof Date)) { + val = val.valueOf(); + } + if (exports.isObject(val)) { + let obj = val; + if (isMongooseObject(val) && !val.isMongooseBuffer) { + obj = obj.toObject({ + transform: false, + virtuals: false, + depopulate: true, + getters: false, + flattenDecimals: false + }); + } + if (val.isMongooseBuffer) { + obj = Buffer.from(obj); + } + exports.mergeClone(to[key], obj); + } else { + to[key] = clone(val, { + flattenDecimals: false + }); + } + } + } +}; + +/** + * Executes a function on each element of an array (like _.each) + * + * @param {Array} arr + * @param {Function} fn + * @api private + */ + +exports.each = function(arr, fn) { + for (const item of arr) { + fn(item); + } +}; + +/** + * Rename an object key, while preserving its position in the object + * + * @param {Object} oldObj + * @param {String|Number} oldKey + * @param {String|Number} newKey + * @api private + */ +exports.renameObjKey = function(oldObj, oldKey, newKey) { + const keys = Object.keys(oldObj); + return keys.reduce( + (acc, val) => { + if (val === oldKey) { + acc[newKey] = oldObj[oldKey]; + } else { + acc[val] = oldObj[val]; + } + return acc; + }, + {} + ); +}; + +/*! + * ignore + */ + +exports.getOption = function(name) { + const sources = Array.prototype.slice.call(arguments, 1); + + for (const source of sources) { + if (source == null) { + continue; + } + if (source[name] != null) { + return source[name]; + } + } + + return null; +}; + +/*! + * ignore + */ + +exports.noop = function() {}; + +exports.errorToPOJO = function errorToPOJO(error) { + const isError = error instanceof Error; + if (!isError) { + throw new Error('`error` must be `instanceof Error`.'); + } + + const ret = {}; + for (const properyName of Object.getOwnPropertyNames(error)) { + ret[properyName] = error[properyName]; + } + return ret; +}; + +/*! + * ignore + */ + +exports.warn = function warn(message) { + return process.emitWarning(message, { code: 'MONGOOSE' }); +}; + + +exports.injectTimestampsOption = function injectTimestampsOption(writeOperation, timestampsOption) { + if (timestampsOption == null) { + return; + } + writeOperation.timestamps = timestampsOption; +}; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/validOptions.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/validOptions.js new file mode 100644 index 000000000..2654a7521 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/validOptions.js @@ -0,0 +1,39 @@ + +/*! + * Valid mongoose options + */ + +'use strict'; + +const VALID_OPTIONS = Object.freeze([ + 'allowDiskUse', + 'applyPluginsToChildSchemas', + 'applyPluginsToDiscriminators', + 'autoCreate', + 'autoIndex', + 'autoSearchIndex', + 'bufferCommands', + 'bufferTimeoutMS', + 'cloneSchemas', + 'debug', + 'id', + 'timestamps.createdAt.immutable', + 'maxTimeMS', + 'objectIdGetter', + 'overwriteModels', + 'returnOriginal', + 'runValidators', + 'sanitizeFilter', + 'sanitizeProjection', + 'selectPopulatedPaths', + 'setDefaultsOnInsert', + 'strict', + 'strictPopulate', + 'strictQuery', + 'toJSON', + 'toObject', + 'transactionAsyncLocalStorage', + 'translateAliases' +]); + +module.exports = VALID_OPTIONS; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/lib/virtualType.js b/week-3/04-course-app-hard/node_modules/mongoose/lib/virtualType.js new file mode 100644 index 000000000..2008ebf8b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/lib/virtualType.js @@ -0,0 +1,204 @@ +'use strict'; + +const modelNamesFromRefPath = require('./helpers/populate/modelNamesFromRefPath'); +const utils = require('./utils'); + +const modelSymbol = require('./helpers/symbols').modelSymbol; + +/** + * VirtualType constructor + * + * This is what mongoose uses to define virtual attributes via `Schema.prototype.virtual`. + * + * #### Example: + * + * const fullname = schema.virtual('fullname'); + * fullname instanceof mongoose.VirtualType // true + * + * @param {Object} options + * @param {String|Function} [options.ref] if `ref` is not nullish, this becomes a [populated virtual](https://mongoosejs.com/docs/populate.html#populate-virtuals) + * @param {String|Function} [options.localField] the local field to populate on if this is a populated virtual. + * @param {String|Function} [options.foreignField] the foreign field to populate on if this is a populated virtual. + * @param {Boolean} [options.justOne=false] by default, a populated virtual is an array. If you set `justOne`, the populated virtual will be a single doc or `null`. + * @param {Boolean} [options.getters=false] if you set this to `true`, Mongoose will call any custom getters you defined on this virtual + * @param {Boolean} [options.count=false] if you set this to `true`, `populate()` will set this virtual to the number of populated documents, as opposed to the documents themselves, using [`Query#countDocuments()`](https://mongoosejs.com/docs/api/query.html#Query.prototype.countDocuments()) + * @param {Object|Function} [options.match=null] add an extra match condition to `populate()` + * @param {Number} [options.limit=null] add a default `limit` to the `populate()` query + * @param {Number} [options.skip=null] add a default `skip` to the `populate()` query + * @param {Number} [options.perDocumentLimit=null] For legacy reasons, `limit` with `populate()` may give incorrect results because it only executes a single query for every document being populated. If you set `perDocumentLimit`, Mongoose will ensure correct `limit` per document by executing a separate query for each document to `populate()`. For example, `.find().populate({ path: 'test', perDocumentLimit: 2 })` will execute 2 additional queries if `.find()` returns 2 documents. + * @param {Object} [options.options=null] Additional options like `limit` and `lean`. + * @param {String} name + * @api public + */ + +function VirtualType(options, name) { + this.path = name; + this.getters = []; + this.setters = []; + this.options = Object.assign({}, options); +} + +/** + * If no getters/setters, add a default + * + * @api private + */ + +VirtualType.prototype._applyDefaultGetters = function() { + if (this.getters.length > 0 || this.setters.length > 0) { + return; + } + + const path = this.path; + const internalProperty = '$' + path; + this.getters.push(function() { + return this.$locals[internalProperty]; + }); + this.setters.push(function(v) { + this.$locals[internalProperty] = v; + }); +}; + +/*! + * ignore + */ + +VirtualType.prototype.clone = function() { + const clone = new VirtualType(this.options, this.path); + clone.getters = [].concat(this.getters); + clone.setters = [].concat(this.setters); + return clone; +}; + +/** + * Adds a custom getter to this virtual. + * + * Mongoose calls the getter function with the below 3 parameters. + * + * - `value`: the value returned by the previous getter. If there is only one getter, `value` will be `undefined`. + * - `virtual`: the virtual object you called `.get()` on. + * - `doc`: the document this virtual is attached to. Equivalent to `this`. + * + * #### Example: + * + * const virtual = schema.virtual('fullname'); + * virtual.get(function(value, virtual, doc) { + * return this.name.first + ' ' + this.name.last; + * }); + * + * @param {Function} fn + * @return {VirtualType} this + * @api public + */ + +VirtualType.prototype.get = function(fn) { + this.getters.push(fn); + return this; +}; + +/** + * Adds a custom setter to this virtual. + * + * Mongoose calls the setter function with the below 3 parameters. + * + * - `value`: the value being set. + * - `virtual`: the virtual object you're calling `.set()` on. + * - `doc`: the document this virtual is attached to. Equivalent to `this`. + * + * #### Example: + * + * const virtual = schema.virtual('fullname'); + * virtual.set(function(value, virtual, doc) { + * const parts = value.split(' '); + * this.name.first = parts[0]; + * this.name.last = parts[1]; + * }); + * + * const Model = mongoose.model('Test', schema); + * const doc = new Model(); + * // Calls the setter with `value = 'Jean-Luc Picard'` + * doc.fullname = 'Jean-Luc Picard'; + * doc.name.first; // 'Jean-Luc' + * doc.name.last; // 'Picard' + * + * @param {Function} fn + * @return {VirtualType} this + * @api public + */ + +VirtualType.prototype.set = function(fn) { + this.setters.push(fn); + return this; +}; + +/** + * Applies getters to `value`. + * + * @param {Object} value + * @param {Document} doc The document this virtual is attached to + * @return {Any} the value after applying all getters + * @api public + */ + +VirtualType.prototype.applyGetters = function(value, doc) { + if (utils.hasUserDefinedProperty(this.options, ['ref', 'refPath']) && + doc.$$populatedVirtuals && + doc.$$populatedVirtuals.hasOwnProperty(this.path)) { + value = doc.$$populatedVirtuals[this.path]; + } + + let v = value; + for (const getter of this.getters) { + v = getter.call(doc, v, this, doc); + } + return v; +}; + +/** + * Applies setters to `value`. + * + * @param {Object} value + * @param {Document} doc + * @return {Any} the value after applying all setters + * @api public + */ + +VirtualType.prototype.applySetters = function(value, doc) { + let v = value; + for (const setter of this.setters) { + v = setter.call(doc, v, this, doc); + } + return v; +}; + +/** + * Get the names of models used to populate this model given a doc + * + * @param {Document} doc + * @return {Array | null} + * @api private + */ + +VirtualType.prototype._getModelNamesForPopulate = function _getModelNamesForPopulate(doc) { + if (this.options.refPath) { + return modelNamesFromRefPath(this.options.refPath, doc, this.path); + } + + let normalizedRef = null; + if (typeof this.options.ref === 'function' && !this.options.ref[modelSymbol]) { + normalizedRef = this.options.ref.call(doc, doc); + } else { + normalizedRef = this.options.ref; + } + if (normalizedRef != null && !Array.isArray(normalizedRef)) { + return [normalizedRef]; + } + + return normalizedRef; +}; + +/*! + * exports + */ + +module.exports = VirtualType; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/package.json b/week-3/04-course-app-hard/node_modules/mongoose/package.json new file mode 100644 index 000000000..3fce3440e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/package.json @@ -0,0 +1,147 @@ +{ + "name": "mongoose", + "description": "Mongoose MongoDB ODM", + "version": "8.4.4", + "author": "Guillermo Rauch ", + "keywords": [ + "mongodb", + "document", + "model", + "schema", + "database", + "odm", + "data", + "datastore", + "query", + "nosql", + "orm", + "db" + ], + "license": "MIT", + "dependencies": { + "bson": "^6.7.0", + "kareem": "2.6.3", + "mongodb": "6.6.2", + "mpath": "0.9.0", + "mquery": "5.0.0", + "ms": "2.1.3", + "sift": "17.1.3" + }, + "devDependencies": { + "@babel/core": "7.24.6", + "@babel/preset-env": "7.24.6", + "@typescript-eslint/eslint-plugin": "^6.2.1", + "@typescript-eslint/parser": "^6.2.1", + "acquit": "1.3.0", + "acquit-ignore": "0.2.1", + "acquit-require": "0.1.1", + "assert-browserify": "2.0.0", + "axios": "1.1.3", + "babel-loader": "8.2.5", + "broken-link-checker": "^0.7.8", + "buffer": "^5.6.0", + "cheerio": "1.0.0-rc.12", + "crypto-browserify": "3.12.0", + "dotenv": "16.4.5", + "dox": "1.0.0", + "eslint": "8.57.0", + "eslint-plugin-markdown": "^5.0.0", + "eslint-plugin-mocha-no-only": "1.2.0", + "express": "^4.18.1", + "fs-extra": "~11.2.0", + "highlight.js": "11.8.0", + "lodash.isequal": "4.5.0", + "lodash.isequalwith": "4.4.0", + "markdownlint-cli2": "^0.13.0", + "marked": "4.3.0", + "mkdirp": "^3.0.1", + "mocha": "10.4.0", + "moment": "2.x", + "mongodb-memory-server": "9.3.0", + "ncp": "^2.0.0", + "nyc": "15.1.0", + "pug": "3.0.3", + "q": "1.5.1", + "sinon": "18.0.0", + "stream-browserify": "3.0.0", + "tsd": "0.31.0", + "typescript": "5.4.5", + "uuid": "9.0.1", + "webpack": "5.91.0" + }, + "directories": { + "lib": "./lib/mongoose" + }, + "scripts": { + "docs:clean": "npm run docs:clean:stable", + "docs:clean:stable": "rimraf index.html && rimraf -rf ./docs/*.html && rimraf -rf ./docs/api && rimraf -rf ./docs/tutorials/*.html && rimraf -rf ./docs/typescript/*.html && rimraf -rf ./docs/*.html && rimraf -rf ./docs/source/_docs && rimraf -rf ./tmp", + "docs:clean:5x": "rimraf index.html && rimraf -rf ./docs/5.x && rimraf -rf ./docs/source/_docs && rimraf -rf ./tmp", + "docs:clean:6x": "rimraf index.html && rimraf -rf ./docs/6.x && rimraf -rf ./docs/source/_docs && rimraf -rf ./tmp", + "docs:copy:tmp": "mkdirp ./tmp/docs/css && mkdirp ./tmp/docs/js && mkdirp ./tmp/docs/images && mkdirp ./tmp/docs/tutorials && mkdirp ./tmp/docs/typescript && mkdirp ./tmp/docs/api && ncp ./docs/css ./tmp/docs/css --filter=.css$ && ncp ./docs/js ./tmp/docs/js --filter=.js$ && ncp ./docs/images ./tmp/docs/images && ncp ./docs/tutorials ./tmp/docs/tutorials && ncp ./docs/typescript ./tmp/docs/typescript && ncp ./docs/api ./tmp/docs/api && cp index.html ./tmp && cp docs/*.html ./tmp/docs/", + "docs:copy:tmp:5x": "rimraf ./docs/5.x && ncp ./tmp ./docs/5.x", + "docs:copy:tmp:6x": "rimraf ./docs/6.x && ncp ./tmp ./docs/6.x", + "docs:generate": "node ./scripts/website.js", + "docs:generate:sponsorData": "node ./scripts/loadSponsorData.js", + "docs:test": "npm run docs:generate", + "docs:view": "node ./scripts/static.js", + "docs:prepare:publish:stable": "git checkout gh-pages && git merge master && npm run docs:generate", + "docs:prepare:publish:5x": "git checkout 5.x && git merge 5.x && npm run docs:clean:stable && npm run docs:generate && npm run docs:copy:tmp && git checkout gh-pages && npm run docs:copy:tmp:5x", + "docs:prepare:publish:6x": "git checkout 6.x && git merge 6.x && npm run docs:clean:stable && env DOCS_DEPLOY=true npm run docs:generate && mv ./docs/6.x ./tmp && git checkout gh-pages && npm run docs:copy:tmp:6x", + "docs:prepare:publish:7x": "env DOCS_DEPLOY=true npm run docs:generate && git checkout gh-pages && rimraf ./docs/7.x && mv ./tmp ./docs/7.x", + "docs:check-links": "blc http://127.0.0.1:8089 -ro", + "lint": "eslint .", + "lint-js": "eslint . --ext .js --ext .cjs", + "lint-ts": "eslint . --ext .ts", + "lint-md": "markdownlint-cli2 \"**/*.md\"", + "build-browser": "(rm ./dist/* || true) && node ./scripts/build-browser.js", + "prepublishOnly": "npm run build-browser", + "release": "git pull && git push origin master --tags && npm publish", + "release-5x": "git pull origin 5.x && git push origin 5.x && git push origin 5.x --tags && npm publish --tag 5x", + "release-6x": "git pull origin 6.x && git push origin 6.x && git push origin 6.x --tags && npm publish --tag 6x", + "mongo": "node ./tools/repl.js", + "publish-7x": "npm publish --tag 7x", + "test": "mocha --exit ./test/*.test.js", + "test-deno": "deno run --allow-env --allow-read --allow-net --allow-run --allow-sys --allow-write ./test/deno.js", + "test-rs": "START_REPLICA_SET=1 mocha --timeout 30000 --exit ./test/*.test.js", + "test-tsd": "node ./test/types/check-types-filename && tsd", + "tdd": "mocha ./test/*.test.js --inspect --watch --recursive --watch-files ./**/*.{js,ts}", + "test-coverage": "nyc --reporter=html --reporter=text npm test", + "ts-benchmark": "cd ./benchmarks/typescript/simple && npm install && npm run benchmark | node ../../../scripts/tsc-diagnostics-check" + }, + "main": "./index.js", + "types": "./types/index.d.ts", + "engines": { + "node": ">=16.20.1" + }, + "bugs": { + "url": "https://github.com/Automattic/mongoose/issues/new" + }, + "repository": { + "type": "git", + "url": "git://github.com/Automattic/mongoose.git" + }, + "homepage": "https://mongoosejs.com", + "browser": "./dist/browser.umd.js", + "config": { + "mongodbMemoryServer": { + "disablePostinstall": true + } + }, + "funding": { + "type": "opencollective", + "url": "https://opencollective.com/mongoose" + }, + "tsd": { + "directory": "test/types", + "compilerOptions": { + "esModuleInterop": false, + "strict": true, + "allowSyntheticDefaultImports": true, + "strictPropertyInitialization": false, + "noImplicitAny": false, + "strictNullChecks": true, + "module": "commonjs", + "target": "ES2017" + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/aggregate.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/aggregate.d.ts new file mode 100644 index 000000000..29b477683 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/aggregate.d.ts @@ -0,0 +1,180 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + /** Extract generic type from Aggregate class */ + type AggregateExtract

= P extends Aggregate ? T : never; + + interface AggregateOptions extends Omit, SessionOption { + [key: string]: any; + } + + class Aggregate implements SessionOperation { + /** + * Returns an asyncIterator for use with [`for/await/of` loops](https://thecodebarbarian.com/getting-started-with-async-iterators-in-node-js) + * You do not need to call this function explicitly, the JavaScript runtime + * will call it for you. + */ + [Symbol.asyncIterator](): AsyncIterableIterator>; + + // Returns a string representation of this aggregation. + [Symbol.toStringTag]: string; + + options: AggregateOptions; + + /** + * Sets an option on this aggregation. This function will be deprecated in a + * future release. + * + * @deprecated + */ + addCursorFlag(flag: CursorFlag, value: boolean): this; + + /** + * Appends a new $addFields operator to this aggregate pipeline. + * Requires MongoDB v3.4+ to work + */ + addFields(arg: PipelineStage.AddFields['$addFields']): this; + + /** Sets the allowDiskUse option for the aggregation query */ + allowDiskUse(value: boolean): this; + + /** Appends new operators to this aggregate pipeline */ + append(...args: PipelineStage[]): this; + + /** + * Executes the query returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + * Like [`.then()`](#query_Query-then), but only takes a rejection handler. + */ + catch: Promise['catch']; + + /** Set the collation. */ + collation(options: mongodb.CollationOptions): this; + + /** Appends a new $count operator to this aggregate pipeline. */ + count(fieldName: PipelineStage.Count['$count']): this; + + /** Appends a new $densify operator to this aggregate pipeline */ + densify(arg: PipelineStage.Densify['$densify']): this; + + /** + * Sets the cursor option for the aggregation query + */ + cursor(options?: Record): Cursor; + + + /** Executes the aggregate pipeline on the currently bound Model. */ + exec(): Promise; + + /** Execute the aggregation with explain */ + explain(verbosity: mongodb.ExplainVerbosityLike): Promise; + explain(): Promise; + + /** Combines multiple aggregation pipelines. */ + facet(options: PipelineStage.Facet['$facet']): this; + + /** Appends a new $fill operator to this aggregate pipeline */ + fill(arg: PipelineStage.Fill['$fill']): this; + + /** + * Executes the aggregation returning a `Promise` which will be + * resolved with `.finally()` chained. + */ + finally: Promise['finally']; + + /** Appends new custom $graphLookup operator(s) to this aggregate pipeline, performing a recursive search on a collection. */ + graphLookup(options: PipelineStage.GraphLookup['$graphLookup']): this; + + /** Appends new custom $group operator to this aggregate pipeline. */ + group(arg: PipelineStage.Group['$group']): this; + + /** Sets the hint option for the aggregation query */ + hint(value: Record | string): this; + + /** + * Appends a new $limit operator to this aggregate pipeline. + * @param num maximum number of records to pass to the next stage + */ + limit(num: PipelineStage.Limit['$limit']): this; + + /** Appends new custom $lookup operator to this aggregate pipeline. */ + lookup(options: PipelineStage.Lookup['$lookup']): this; + + /** + * Appends a new custom $match operator to this aggregate pipeline. + * @param arg $match operator contents + */ + match(arg: PipelineStage.Match['$match']): this; + + /** + * Binds this aggregate to a model. + * @param model the model to which the aggregate is to be bound + */ + model(model: Model): this; + + /** + * Returns the current model bound to this aggregate object + */ + model(): Model; + + /** Appends a new $geoNear operator to this aggregate pipeline. */ + near(arg: PipelineStage.GeoNear['$geoNear']): this; + + /** Returns the current pipeline */ + pipeline(): PipelineStage[]; + + /** Appends a new $project operator to this aggregate pipeline. */ + project(arg: PipelineStage.Project['$project']): this; + + /** Sets the readPreference option for the aggregation query. */ + read(pref: mongodb.ReadPreferenceLike): this; + + /** Sets the readConcern level for the aggregation query. */ + readConcern(level: string): this; + + /** Appends a new $redact operator to this aggregate pipeline. */ + redact(expression: PipelineStage.Redact['$redact'], thenExpr: '$$DESCEND' | '$$PRUNE' | '$$KEEP' | AnyObject, elseExpr: '$$DESCEND' | '$$PRUNE' | '$$KEEP' | AnyObject): this; + + /** Appends a new $replaceRoot operator to this aggregate pipeline. */ + replaceRoot(newRoot: PipelineStage.ReplaceRoot['$replaceRoot']['newRoot'] | string): this; + + /** + * Helper for [Atlas Text Search](https://www.mongodb.com/docs/atlas/atlas-search/tutorial/)'s + * `$search` stage. + */ + search(options: PipelineStage.Search['$search']): this; + + /** Lets you set arbitrary options, for middlewares or plugins. */ + option(value: AggregateOptions): this; + + /** Appends new custom $sample operator to this aggregate pipeline. */ + sample(arg: PipelineStage.Sample['$sample']['size']): this; + + /** Sets the session for this aggregation. Useful for [transactions](/docs/transactions.html). */ + session(session: mongodb.ClientSession | null): this; + + /** + * Appends a new $skip operator to this aggregate pipeline. + * @param num number of records to skip before next stage + */ + skip(num: PipelineStage.Skip['$skip']): this; + + /** Appends a new $sort operator to this aggregate pipeline. */ + sort(arg: string | Record | PipelineStage.Sort['$sort']): this; + + /** Provides promise for aggregate. */ + then: Promise['then']; + + /** + * Appends a new $sortByCount operator to this aggregate pipeline. Accepts either a string field name + * or a pipeline object. + */ + sortByCount(arg: string | PipelineStage.SortByCount['$sortByCount']): this; + + /** Appends new $unionWith operator to this aggregate pipeline. */ + unionWith(options: PipelineStage.UnionWith['$unionWith']): this; + + /** Appends new custom $unwind operator(s) to this aggregate pipeline. */ + unwind(...args: PipelineStage.Unwind['$unwind'][]): this; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/augmentations.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/augmentations.d.ts new file mode 100644 index 000000000..82aca589f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/augmentations.d.ts @@ -0,0 +1,9 @@ +// this import is required so that types get merged instead of completely overwritten +import 'bson'; + +declare module 'bson' { + interface ObjectId { + /** Mongoose automatically adds a conveniency "_id" getter on the base ObjectId class */ + _id: this; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/callback.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/callback.d.ts new file mode 100644 index 000000000..370379ab4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/callback.d.ts @@ -0,0 +1,8 @@ +declare module 'mongoose' { + type CallbackError = NativeError | null; + + type Callback = (error: CallbackError, result: T) => void; + + type CallbackWithoutResult = (error: CallbackError) => void; + type CallbackWithoutResultAndOptionalError = (error?: CallbackError) => void; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/collection.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/collection.d.ts new file mode 100644 index 000000000..14a09ba37 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/collection.d.ts @@ -0,0 +1,44 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + /* + * section collection.js + */ + interface CollectionBase extends mongodb.Collection { + /* + * Abstract methods. Some of these are already defined on the + * mongodb.Collection interface so they've been commented out. + */ + ensureIndex(...args: any[]): any; + findAndModify(...args: any[]): any; + getIndexes(...args: any[]): any; + + /** The collection name */ + collectionName: string; + /** The Connection instance */ + conn: Connection; + /** The collection name */ + name: string; + } + + /* + * section drivers/node-mongodb-native/collection.js + */ + interface Collection extends CollectionBase { + /** + * Collection constructor + * @param name name of the collection + * @param conn A MongooseConnection instance + * @param opts optional collection options + */ + // eslint-disable-next-line @typescript-eslint/no-misused-new + new(name: string, conn: Connection, opts?: any): Collection; + /** Formatter for debug print args */ + $format(arg: any, color?: boolean, shell?: boolean): string; + /** Debug print helper */ + $print(name: string, i: string | number, args: any[], color?: boolean, shell?: boolean): void; + /** Retrieves information about this collections indexes. */ + getIndexes(): ReturnType['indexInformation']>; + } + let Collection: Collection; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/connection.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/connection.d.ts new file mode 100644 index 000000000..1ed08ad89 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/connection.d.ts @@ -0,0 +1,253 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + import events = require('events'); + + /** The Mongoose module's default connection. Equivalent to `mongoose.connections[0]`, see [`connections`](#mongoose_Mongoose-connections). */ + const connection: Connection; + + /** An array containing all connections associated with this Mongoose instance. */ + const connections: Connection[]; + + /** Opens Mongoose's default connection to MongoDB, see [connections docs](https://mongoosejs.com/docs/connections.html) */ + function connect(uri: string, options?: ConnectOptions): Promise; + + /** Creates a Connection instance. */ + function createConnection(uri: string, options?: ConnectOptions): Connection; + function createConnection(): Connection; + + function disconnect(): Promise; + + /** + * Connection ready state + * + * - 0 = disconnected + * - 1 = connected + * - 2 = connecting + * - 3 = disconnecting + * - 99 = uninitialized + */ + enum ConnectionStates { + disconnected = 0, + connected = 1, + connecting = 2, + disconnecting = 3, + uninitialized = 99, + } + + /** Expose connection states for user-land */ + const STATES: typeof ConnectionStates; + + interface ConnectOptions extends mongodb.MongoClientOptions { + /** Set to false to [disable buffering](http://mongoosejs.com/docs/faq.html#callback_never_executes) on all models associated with this connection. */ + bufferCommands?: boolean; + /** The name of the database you want to use. If not provided, Mongoose uses the database name from connection string. */ + dbName?: string; + /** username for authentication, equivalent to `options.auth.user`. Maintained for backwards compatibility. */ + user?: string; + /** password for authentication, equivalent to `options.auth.password`. Maintained for backwards compatibility. */ + pass?: string; + /** Set to false to disable automatic index creation for all models associated with this connection. */ + autoIndex?: boolean; + /** Set to `false` to disable Mongoose automatically calling `createCollection()` on every model created on this connection. */ + autoCreate?: boolean; + } + + class Connection extends events.EventEmitter implements SessionStarter { + /** Returns a promise that resolves when this connection successfully connects to MongoDB */ + asPromise(): Promise; + + /** Closes the connection */ + close(force?: boolean): Promise; + + /** Closes and destroys the connection. Connection once destroyed cannot be reopened */ + destroy(force?: boolean): Promise; + + /** Retrieves a collection, creating it if not cached. */ + collection(name: string, options?: mongodb.CreateCollectionOptions): Collection; + + /** A hash of the collections associated with this connection */ + readonly collections: { [index: string]: Collection }; + + /** A hash of the global options that are associated with this connection */ + readonly config: any; + + /** The mongodb.Db instance, set when the connection is opened */ + readonly db: mongodb.Db; + + /** + * Helper for `createCollection()`. Will explicitly create the given collection + * with specified options. Used to create [capped collections](https://www.mongodb.com/docs/manual/core/capped-collections/) + * and [views](https://www.mongodb.com/docs/manual/core/views/) from mongoose. + */ + createCollection(name: string, options?: mongodb.CreateCollectionOptions): Promise>; + + /** + * https://mongoosejs.com/docs/api/connection.html#Connection.prototype.createCollections() + */ + createCollections(continueOnError?: boolean): Promise>>; + + /** + * Removes the model named `name` from this connection, if it exists. You can + * use this function to clean up any models you created in your tests to + * prevent OverwriteModelErrors. + */ + deleteModel(name: string | RegExp): this; + + /** + * Helper for `dropCollection()`. Will delete the given collection, including + * all documents and indexes. + */ + dropCollection(collection: string): Promise; + + /** + * Helper for `dropDatabase()`. Deletes the given database, including all + * collections, documents, and indexes. + */ + dropDatabase(): Promise; + + /** Gets the value of the option `key`. */ + get(key: string): any; + + /** + * Returns the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance + * that this connection uses to talk to MongoDB. + */ + getClient(): mongodb.MongoClient; + + /** + * The host name portion of the URI. If multiple hosts, such as a replica set, + * this will contain the first host name in the URI + */ + readonly host: string; + + /** + * A number identifier for this connection. Used for debugging when + * you have [multiple connections](/docs/connections.html#multiple_connections). + */ + readonly id: number; + + /** + * Helper for MongoDB Node driver's `listCollections()`. + * Returns an array of collection names. + */ + listCollections(): Promise[]>; + + /** + * Helper for MongoDB Node driver's `listDatabases()`. + * Returns an array of database names. + */ + listDatabases(): Promise; + + /** + * A [POJO](https://masteringjs.io/tutorials/fundamentals/pojo) containing + * a map from model names to models. Contains all models that have been + * added to this connection using [`Connection#model()`](/docs/api/connection.html#connection_Connection-model). + */ + readonly models: Readonly<{ [index: string]: Model }>; + + /** Defines or retrieves a model. */ + model( + name: string, + schema?: TSchema, + collection?: string, + options?: CompileModelOptions + ): Model< + InferSchemaType, + ObtainSchemaGeneric, + ObtainSchemaGeneric, + {}, + HydratedDocument< + InferSchemaType, + ObtainSchemaGeneric, + ObtainSchemaGeneric + >, + TSchema> & ObtainSchemaGeneric; + model( + name: string, + schema?: Schema, + collection?: string, + options?: CompileModelOptions + ): U; + model(name: string, schema?: Schema, collection?: string, options?: CompileModelOptions): Model; + + /** Returns an array of model names created on this connection. */ + modelNames(): Array; + + /** The name of the database this connection points to. */ + readonly name: string; + + /** Opens the connection with a URI using `MongoClient.connect()`. */ + openUri(uri: string, options?: ConnectOptions): Promise; + + /** The password specified in the URI */ + readonly pass: string; + + /** + * The port portion of the URI. If multiple hosts, such as a replica set, + * this will contain the port from the first host name in the URI. + */ + readonly port: number; + + /** Declares a plugin executed on all schemas you pass to `conn.model()` */ + plugin(fn: (schema: S, opts?: any) => void, opts?: O): Connection; + + /** The plugins that will be applied to all models created on this connection. */ + plugins: Array; + + /** + * Connection ready state + * + * - 0 = disconnected + * - 1 = connected + * - 2 = connecting + * - 3 = disconnecting + * - 99 = uninitialized + */ + readonly readyState: ConnectionStates; + + /** Sets the value of the option `key`. */ + set(key: string, value: any): any; + + /** + * Set the [MongoDB driver `MongoClient`](https://mongodb.github.io/node-mongodb-native/4.9/classes/MongoClient.html) instance + * that this connection uses to talk to MongoDB. This is useful if you already have a MongoClient instance, and want to + * reuse it. + */ + setClient(client: mongodb.MongoClient): this; + + /** + * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions) + * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/), + * and [transactions](http://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html). + */ + startSession(options?: ClientSessionOptions): Promise; + + /** + * Makes the indexes in MongoDB match the indexes defined in every model's + * schema. This function will drop any indexes that are not defined in + * the model's schema except the `_id` index, and build any indexes that + * are in your schema but not in MongoDB. + */ + syncIndexes(options?: SyncIndexesOptions): Promise; + + /** + * _Requires MongoDB >= 3.6.0._ Executes the wrapped async function + * in a transaction. Mongoose will commit the transaction if the + * async function executes successfully and attempt to retry if + * there was a retryable error. + */ + transaction(fn: (session: mongodb.ClientSession) => Promise, options?: mongodb.TransactionOptions): Promise; + + /** Switches to a different database using the same connection pool. */ + useDb(name: string, options?: { useCache?: boolean, noListener?: boolean }): Connection; + + /** The username specified in the URI */ + readonly user: string; + + /** Watches the entire underlying database for changes. Similar to [`Model.watch()`](/docs/api/model.html#model_Model-watch). */ + watch(pipeline?: Array, options?: mongodb.ChangeStreamOptions): mongodb.ChangeStream; + + withSession(executor: (session: ClientSession) => Promise): Promise; + } + +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/cursor.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/cursor.d.ts new file mode 100644 index 000000000..5c467b866 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/cursor.d.ts @@ -0,0 +1,58 @@ +declare module 'mongoose' { + + import stream = require('stream'); + + type CursorFlag = 'tailable' | 'oplogReplay' | 'noCursorTimeout' | 'awaitData' | 'partial'; + + interface EachAsyncOptions { + parallel?: number; + batchSize?: number; + continueOnError?: boolean; + } + + class Cursor extends stream.Readable { + [Symbol.asyncIterator](): AsyncIterableIterator; + + /** + * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html#addCursorFlag). + * Useful for setting the `noCursorTimeout` and `tailable` flags. + */ + addCursorFlag(flag: CursorFlag, value: boolean): this; + + /** + * Marks this cursor as closed. Will stop streaming and subsequent calls to + * `next()` will error. + */ + close(): Promise; + + /** + * Rewind this cursor to its uninitialized state. Any options that are present on the cursor will + * remain in effect. Iterating this cursor will cause new queries to be sent to the server, even + * if the resultant data has already been retrieved by this cursor. + */ + rewind(): this; + + /** + * Execute `fn` for every document(s) in the cursor. If batchSize is provided + * `fn` will be executed for each batch of documents. If `fn` returns a promise, + * will wait for the promise to resolve before iterating on to the next one. + * Returns a promise that resolves when done. + */ + eachAsync(fn: (doc: DocType[], i: number) => any, options: EachAsyncOptions & { batchSize: number }): Promise; + eachAsync(fn: (doc: DocType, i: number) => any, options?: EachAsyncOptions): Promise; + + /** + * Registers a transform function which subsequently maps documents retrieved + * via the streams interface or `.next()` + */ + map(fn: (res: DocType) => ResultType): Cursor; + + /** + * Get the next document from this cursor. Will return `null` when there are + * no documents left. + */ + next(): Promise; + + options: Options; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/document.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/document.d.ts new file mode 100644 index 000000000..c0723e883 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/document.d.ts @@ -0,0 +1,267 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + /** A list of paths to skip. If set, Mongoose will validate every modified path that is not in this list. */ + type pathsToSkip = string[] | string; + + interface DocumentSetOptions { + merge?: boolean; + + [key: string]: any; + } + + /** + * Generic types for Document: + * * T - the type of _id + * * TQueryHelpers - Object with any helpers that should be mixed into the Query type + * * DocType - the type of the actual Document created + */ + class Document { + constructor(doc?: any); + + /** This documents _id. */ + _id?: T; + + /** This documents __v. */ + __v?: any; + + /** Assert that a given path or paths is populated. Throws an error if not populated. */ + $assertPopulated(path: string | string[], values?: Partial): Omit & Paths; + + /** Returns a deep clone of this document */ + $clone(): this; + + /* Get all subdocs (by bfs) */ + $getAllSubdocs(): Document[]; + + /** Don't run validation on this path or persist changes to this path. */ + $ignore(path: string): void; + + /** Checks if a path is set to its default. */ + $isDefault(path: string): boolean; + + /** Getter/setter, determines whether the document was removed or not. */ + $isDeleted(val?: boolean): boolean; + + /** Returns an array of all populated documents associated with the query */ + $getPopulatedDocs(): Document[]; + + /** + * Increments the numeric value at `path` by the given `val`. + * When you call `save()` on this document, Mongoose will send a + * `$inc` as opposed to a `$set`. + */ + $inc(path: string | string[], val?: number): this; + + /** + * Returns true if the given path is nullish or only contains empty objects. + * Useful for determining whether this subdoc will get stripped out by the + * [minimize option](/docs/guide.html#minimize). + */ + $isEmpty(path: string): boolean; + + /** Checks if a path is invalid */ + $isValid(path: string): boolean; + + /** + * Empty object that you can use for storing properties on the document. This + * is handy for passing data to middleware without conflicting with Mongoose + * internals. + */ + $locals: Record; + + /** Marks a path as valid, removing existing validation errors. */ + $markValid(path: string): void; + + /** Returns the model with the given name on this document's associated connection. */ + $model>(name: string): ModelType; + $model>(): ModelType; + + /** + * A string containing the current operation that Mongoose is executing + * on this document. Can be `null`, `'save'`, `'validate'`, or `'remove'`. + */ + $op: 'save' | 'validate' | 'remove' | null; + + /** + * Getter/setter around the session associated with this document. Used to + * automatically set `session` if you `save()` a doc that you got from a + * query with an associated session. + */ + $session(session?: ClientSession | null): ClientSession | null; + + /** Alias for `set()`, used internally to avoid conflicts */ + $set(path: string | Record, val: any, type: any, options?: DocumentSetOptions): this; + $set(path: string | Record, val: any, options?: DocumentSetOptions): this; + $set(value: string | Record): this; + + /** Set this property to add additional query filters when Mongoose saves this document and `isNew` is false. */ + $where: Record; + + /** If this is a discriminator model, `baseModelName` is the name of the base model. */ + baseModelName?: string; + + /** Collection the model uses. */ + collection: Collection; + + /** Connection the model uses. */ + db: Connection; + + /** Removes this document from the db. */ + deleteOne(options?: QueryOptions): QueryWithHelpers< + mongodb.DeleteResult, + this, + TQueryHelpers, + DocType, + 'deleteOne' + >; + + /** + * Takes a populated field and returns it to its unpopulated state. If called with + * no arguments, then all populated fields are returned to their unpopulated state. + */ + depopulate(path?: string | string[]): this; + + /** + * Returns the list of paths that have been directly modified. A direct + * modified path is a path that you explicitly set, whether via `doc.foo = 'bar'`, + * `Object.assign(doc, { foo: 'bar' })`, or `doc.set('foo', 'bar')`. + */ + directModifiedPaths(): Array; + + /** + * Returns true if this document is equal to another document. + * + * Documents are considered equal when they have matching `_id`s, unless neither + * document has an `_id`, in which case this function falls back to using + * `deepEqual()`. + */ + equals(doc: Document): boolean; + + /** Returns the current validation errors. */ + errors?: Error.ValidationError; + + /** Returns the value of a path. */ + get(path: T, type?: any, options?: any): DocType[T]; + get(path: string, type?: any, options?: any): any; + + /** + * Returns the changes that happened to the document + * in the format that will be sent to MongoDB. + */ + getChanges(): UpdateQuery; + + /** The string version of this documents _id. */ + id?: any; + + /** Signal that we desire an increment of this documents version. */ + increment(): this; + + /** + * Initializes the document without setters or marking anything modified. + * Called internally after a document is returned from mongodb. Normally, + * you do **not** need to call this function on your own. + */ + init(obj: AnyObject, opts?: AnyObject): this; + + /** Marks a path as invalid, causing validation to fail. */ + invalidate(path: T, errorMsg: string | NativeError, value?: any, kind?: string): NativeError | null; + invalidate(path: string, errorMsg: string | NativeError, value?: any, kind?: string): NativeError | null; + + /** Returns true if `path` was directly set and modified, else false. */ + isDirectModified(path: T | Array): boolean; + isDirectModified(path: string | Array): boolean; + + /** Checks if `path` was explicitly selected. If no projection, always returns true. */ + isDirectSelected(path: T): boolean; + isDirectSelected(path: string): boolean; + + /** Checks if `path` is in the `init` state, that is, it was set by `Document#init()` and not modified since. */ + isInit(path: T): boolean; + isInit(path: string): boolean; + + /** + * Returns true if any of the given paths are modified, else false. If no arguments, returns `true` if any path + * in this document is modified. + */ + isModified(path?: T | Array, options?: { ignoreAtomics?: boolean } | null): boolean; + isModified(path?: string | Array, options?: { ignoreAtomics?: boolean } | null): boolean; + + /** Boolean flag specifying if the document is new. */ + isNew: boolean; + + /** Checks if `path` was selected in the source query which initialized this document. */ + isSelected(path: T): boolean; + isSelected(path: string): boolean; + + /** Marks the path as having pending changes to write to the db. */ + markModified(path: T, scope?: any): void; + markModified(path: string, scope?: any): void; + + /** Returns the model with the given name on this document's associated connection. */ + model>(name: string): ModelType; + model>(): ModelType; + + /** Returns the list of paths that have been modified. */ + modifiedPaths(options?: { includeChildren?: boolean }): Array; + + /** + * Overwrite all values in this document with the values of `obj`, except + * for immutable properties. Behaves similarly to `set()`, except for it + * unsets all properties that aren't in `obj`. + */ + overwrite(obj: AnyObject): this; + + /** + * If this document is a subdocument or populated document, returns the + * document's parent. Returns undefined otherwise. + */ + $parent(): Document | undefined; + + /** Populates document references. */ + populate(path: string | PopulateOptions | (string | PopulateOptions)[]): Promise>; + populate(path: string, select?: string | AnyObject, model?: Model, match?: AnyObject, options?: PopulateOptions): Promise>; + + /** Gets _id(s) used during population of the given `path`. If the path was not populated, returns `undefined`. */ + populated(path: string): any; + + /** Sends a replaceOne command with this document `_id` as the query selector. */ + replaceOne(replacement?: AnyObject, options?: QueryOptions | null): Query; + + /** Saves this document by inserting a new document into the database if [document.isNew](/docs/api/document.html#document_Document-isNew) is `true`, or sends an [updateOne](/docs/api/document.html#document_Document-updateOne) operation with just the modified paths if `isNew` is `false`. */ + save(options?: SaveOptions): Promise; + + /** The document's schema. */ + schema: Schema; + + /** Sets the value of a path, or many paths. */ + set(path: T, val: DocType[T], type: any, options?: DocumentSetOptions): this; + set(path: string | Record, val: any, type: any, options?: DocumentSetOptions): this; + set(path: string | Record, val: any, options?: DocumentSetOptions): this; + set(value: string | Record): this; + + /** The return value of this method is used in calls to JSON.stringify(doc). */ + toJSON>(options?: ToObjectOptions & { flattenMaps?: true }): FlattenMaps; + toJSON>(options: ToObjectOptions & { flattenMaps: false }): T; + + /** Converts this document into a plain-old JavaScript object ([POJO](https://masteringjs.io/tutorials/fundamentals/pojo)). */ + toObject>(options?: ToObjectOptions): Require_id; + + /** Clears the modified state on the specified path. */ + unmarkModified(path: T): void; + unmarkModified(path: string): void; + + /** Sends an updateOne command with this document `_id` as the query selector. */ + updateOne(update?: UpdateQuery | UpdateWithAggregationPipeline, options?: QueryOptions | null): Query; + + /** Executes registered validation rules for this document. */ + validate(pathsToValidate?: T | T[], options?: AnyObject): Promise; + validate(pathsToValidate?: pathsToValidate, options?: AnyObject): Promise; + validate(options: { pathsToSkip?: pathsToSkip }): Promise; + + /** Executes registered validation rules (skipping asynchronous validators) for this document. */ + validateSync(options: { pathsToSkip?: pathsToSkip, [k: string]: any }): Error.ValidationError | null; + validateSync(pathsToValidate?: T | T[], options?: AnyObject): Error.ValidationError | null; + validateSync(pathsToValidate?: pathsToValidate, options?: AnyObject): Error.ValidationError | null; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/error.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/error.d.ts new file mode 100644 index 000000000..3fec7c413 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/error.d.ts @@ -0,0 +1,133 @@ +declare class NativeError extends global.Error { } + +declare module 'mongoose' { + import mongodb = require('mongodb'); + + type CastError = Error.CastError; + type SyncIndexesError = Error.SyncIndexesError; + + export class MongooseError extends global.Error { + constructor(msg: string); + + /** The type of error. "MongooseError" for generic errors. */ + name: string; + + static messages: any; + + static Messages: any; + } + + class Error extends MongooseError { } + + namespace Error { + + export class CastError extends MongooseError { + name: 'CastError'; + stringValue: string; + kind: string; + value: any; + path: string; + reason?: NativeError | null; + + constructor(type: string, value: any, path: string, reason?: NativeError, schemaType?: SchemaType); + } + export class SyncIndexesError extends MongooseError { + name: 'SyncIndexesError'; + errors?: Record; + + constructor(type: string, value: any, path: string, reason?: NativeError, schemaType?: SchemaType); + } + + export class DivergentArrayError extends MongooseError { + name: 'DivergentArrayError'; + } + + export class MissingSchemaError extends MongooseError { + name: 'MissingSchemaError'; + } + + export class DocumentNotFoundError extends MongooseError { + name: 'DocumentNotFoundError'; + result: any; + numAffected: number; + filter: any; + query: any; + } + + export class ObjectExpectedError extends MongooseError { + name: 'ObjectExpectedError'; + path: string; + } + + export class ObjectParameterError extends MongooseError { + name: 'ObjectParameterError'; + } + + export class OverwriteModelError extends MongooseError { + name: 'OverwriteModelError'; + } + + export class ParallelSaveError extends MongooseError { + name: 'ParallelSaveError'; + } + + export class ParallelValidateError extends MongooseError { + name: 'ParallelValidateError'; + } + + export class MongooseServerSelectionError extends MongooseError { + name: 'MongooseServerSelectionError'; + } + + export class StrictModeError extends MongooseError { + name: 'StrictModeError'; + isImmutableError: boolean; + path: string; + } + + export class ValidationError extends MongooseError { + name: 'ValidationError'; + + errors: { [path: string]: ValidatorError | CastError }; + addError: (path: string, error: ValidatorError | CastError) => void; + + constructor(instance?: MongooseError); + } + + export class ValidatorError extends MongooseError { + name: 'ValidatorError'; + properties: { + message: string, + type?: string, + path?: string, + value?: any, + reason?: any + }; + kind: string; + path: string; + value: any; + reason?: MongooseError | null; + + constructor(properties: { + message?: string, + type?: string, + path?: string, + value?: any, + reason?: any + }); + } + + export class VersionError extends MongooseError { + name: 'VersionError'; + version: number; + modifiedPaths: Array; + + constructor(doc: Document, currentVersion: number, modifiedPaths: Array); + } + + export class StrictPopulateError extends MongooseError { + name: 'StrictPopulateError'; + path: string; + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/expressions.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/expressions.d.ts new file mode 100644 index 000000000..d3efdd81c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/expressions.d.ts @@ -0,0 +1,2936 @@ +declare module 'mongoose' { + + /** + * [Expressions reference](https://www.mongodb.com/docs/manual/meta/aggregation-quick-reference/#expressions) + */ + type AggregationVariables = + SpecialPathVariables | + '$$NOW' | + '$$CLUSTER_TIME' | + '$$DESCEND' | + '$$PRUNE' | + '$$KEEP'; + + type SpecialPathVariables = + '$$ROOT' | + '$$CURRENT' | + '$$REMOVE'; + + export namespace Expression { + export interface Abs { + /** + * Returns the absolute value of a number. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/abs/#mongodb-expression-exp.-abs + */ + $abs: Path | ArithmeticExpressionOperator; + } + + export interface Add { + /** + * Adds numbers to return the sum, or adds numbers and a date to return a new date. If adding numbers and a date, treats the numbers as milliseconds. Accepts any number of argument expressions, but at most, one expression can resolve to a date. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/add/#mongodb-expression-exp.-add + */ + $add: Expression[]; + } + + export interface Ceil { + /** + * Returns the smallest integer greater than or equal to the specified number. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ceil/#mongodb-expression-exp.-ceil + */ + $ceil: NumberExpression; + } + + export interface Divide { + /** + * Returns the result of dividing the first number by the second. Accepts two argument expressions. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/divide/#mongodb-expression-exp.-divide + */ + $divide: NumberExpression[]; + } + + export interface Exp { + /** + * Raises e to the specified exponent. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/exp/#mongodb-expression-exp.-exp + */ + $exp: NumberExpression; + } + + export interface Floor { + /** + * Returns the largest integer less than or equal to the specified number. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/floor/#mongodb-expression-exp.-floor + */ + $floor: NumberExpression; + } + + export interface Ln { + /** + * Calculates the natural log of a number. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ln/#mongodb-expression-exp.-ln + */ + $ln: NumberExpression; + } + + export interface Log { + /** + * Calculates the log of a number in the specified base. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/log/#mongodb-expression-exp.-log + */ + $log: [NumberExpression, NumberExpression]; + } + + export interface Log10 { + /** + * Calculates the log base 10 of a number. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/log10/#mongodb-expression-exp.-log10 + */ + $log10: NumberExpression; + } + + export interface Mod { + /** + * Returns the remainder of the first number divided by the second. Accepts two argument expressions. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/mod/#mongodb-expression-exp.-mod + */ + $mod: [NumberExpression, NumberExpression]; + } + export interface Multiply { + /** + * Multiplies numbers to return the product. Accepts any number of argument expressions. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/multiply/#mongodb-expression-exp.-multiply + */ + $multiply: NumberExpression[]; + } + + export interface Pow { + /** + * Raises a number to the specified exponent. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/pow/#mongodb-expression-exp.-pow + */ + $pow: [NumberExpression, NumberExpression]; + } + + export interface Round { + /** + * Rounds a number to to a whole integer or to a specified decimal place. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/round/#mongodb-expression-exp.-round + */ + $round: [NumberExpression, NumberExpression?]; + } + + export interface Sqrt { + /** + * Calculates the square root. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sqrt/#mongodb-expression-exp.-sqrt + */ + $sqrt: NumberExpression; + } + + export interface Subtract { + /** + * Returns the result of subtracting the second value from the first. If the two values are numbers, return the difference. If the two values are dates, return the difference in milliseconds. If the two values are a date and a number in milliseconds, return the resulting date. Accepts two argument expressions. If the two values are a date and a number, specify the date argument first as it is not meaningful to subtract a date from a number. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/subtract/#mongodb-expression-exp.-subtract + */ + $subtract: (NumberExpression | DateExpression)[]; + } + + export interface Trunc { + /** + * Truncates a number to a whole integer or to a specified decimal place. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/trunc/#mongodb-expression-exp.-trunc + */ + $trunc: [NumberExpression, NumberExpression?]; + } + + export interface Sin { + /** + * Returns the sine of a value that is measured in radians. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sin/#mongodb-expression-exp.-sin + */ + $sin: NumberExpression; + } + + export interface Cos { + /** + * Returns the cosine of a value that is measured in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cos/#mongodb-expression-exp.-cos + */ + $cos: NumberExpression; + } + + export interface Tan { + /** + * Returns the tangent of a value that is measured in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/tan/#mongodb-expression-exp.-tan + */ + $tan: NumberExpression; + } + + export interface Asin { + /** + * Returns the inverse sin (arc sine) of a value in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/asin/#mongodb-expression-exp.-asin + */ + $asin: NumberExpression; + } + + export interface Acos { + /** + * Returns the inverse cosine (arc cosine) of a value in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/acos/#mongodb-expression-exp.-acos + */ + $acos: NumberExpression; + } + + export interface Atan { + /** + * Returns the inverse tangent (arc tangent) of a value in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/atan/#mongodb-expression-exp.-atan + */ + $atan: NumberExpression; + } + + export interface Atan2 { + /** + * Returns the inverse tangent (arc tangent) of y / x in radians, where y and x are the first and second values passed to the expression respectively. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/atan2/#mongodb-expression-exp.-atan2 + */ + $atan2: NumberExpression; + } + + export interface Asinh { + /** + * Returns the inverse hyperbolic sine (hyperbolic arc sine) of a value in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/asinh/#mongodb-expression-exp.-asinh + */ + $asinh: NumberExpression; + } + + export interface Acosh { + /** + * Returns the inverse hyperbolic cosine (hyperbolic arc cosine) of a value in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/acosh/#mongodb-expression-exp.-acosh + */ + $acosh: NumberExpression; + } + + export interface Atanh { + + /** + * Returns the inverse hyperbolic tangent (hyperbolic arc tangent) of a value in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/atanh/#mongodb-expression-exp.-atanh + */ + $atanh: NumberExpression; + } + + export interface Sinh { + /** + * Returns the hyperbolic sine of a value that is measured in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sinh/#mongodb-expression-exp.-sinh + */ + $sinh: NumberExpression; + } + + export interface Cosh { + /** + * Returns the hyperbolic cosine of a value that is measured in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cosh/#mongodb-expression-exp.-cosh + */ + $cosh: NumberExpression; + } + + export interface Tanh { + /** + * Returns the hyperbolic tangent of a value that is measured in radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/tanh/#mongodb-expression-exp.-tanh + */ + $tanh: NumberExpression; + } + + export interface DegreesToRadians { + /** + * Converts a value from degrees to radians. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/degreesToRadians/#mongodb-expression-exp.-degreesToRadians + */ + $degreesToRadians: NumberExpression; + } + + export interface RadiansToDegrees { + /** + * Converts a value from radians to degrees. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/radiansToDegrees/#mongodb-expression-exp.-radiansToDegrees + */ + $radiansToDegrees: NumberExpression; + } + + export interface Meta { + /** + * Access available per-document metadata related to the aggregation operation. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/meta/#mongodb-expression-exp.-meta + */ + $meta: 'textScore' | 'indexKey'; + } + + export interface DateAdd { + /** + * Adds a number of time units to a date object. + * + * @version 5.0.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateAdd/#mongodb-expression-exp.-dateAdd + */ + $dateAdd: { + /** + * The beginning date, in UTC, for the addition operation. The startDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + startDate: DateExpression; + /** + * The unit used to measure the amount of time added to the startDate. The unit is an expression that resolves to one of the following strings: + * - year + * - quarter + * - week + * - month + * - day + * - hour + * - minute + * - second + * - millisecond + */ + unit: StringExpression; + /** + * The number of units added to the startDate. The amount is an expression that resolves to an integer or long. The amount can also resolve to an integral decimal or a double if that value can be converted to a long without loss of precision. + */ + amount: NumberExpression; + /** + * The timezone to carry out the operation. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface DateDiff { + /** + * Returns the difference between two dates. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateDiff/#mongodb-expression-exp.-dateDiff + */ + $dateDiff: { + /** + * The start of the time period. The startDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + startDate: DateExpression; + /** + * The end of the time period. The endDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + endDate: DateExpression; + /** + * The time measurement unit between the startDate and endDate. It is an expression that resolves to a string: + * - year + * - quarter + * - week + * - month + * - day + * - hour + * - minute + * - second + * - millisecond + */ + unit: StringExpression; + /** + * The timezone to carry out the operation. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + /** + * Used when the unit is equal to week. Defaults to Sunday. The startOfWeek parameter is an expression that resolves to a case insensitive string: + * - monday (or mon) + * - tuesday (or tue) + * - wednesday (or wed) + * - thursday (or thu) + * - friday (or fri) + * - saturday (or sat) + * - sunday (or sun) + */ + startOfWeek?: StringExpression; + } + } + + // TODO: Can be done better + export interface DateFromParts { + /** + * Constructs a BSON Date object given the date's constituent parts. + * + * @version 3.6 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateFromParts/#mongodb-expression-exp.-dateFromParts + */ + $dateFromParts: { + /** + * ISO Week Date Year. Can be any expression that evaluates to a number. + * + * Value range: 1-9999 + * + * If the number specified is outside this range, $dateFromParts errors. Starting in MongoDB 4.4, the lower bound for this value is 1. In previous versions of MongoDB, the lower bound was 0. + */ + isoWeekYear?: NumberExpression; + /** + * Week of year. Can be any expression that evaluates to a number. + * + * Defaults to 1. + * + * Value range: 1-53 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + isoWeek?: NumberExpression; + /** + * Day of week (Monday 1 - Sunday 7). Can be any expression that evaluates to a number. + * + * Defaults to 1. + * + * Value range: 1-7 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + isoDayOfWeek?: NumberExpression; + /** + * Calendar year. Can be any expression that evaluates to a number. + * + * Value range: 1-9999 + * + * If the number specified is outside this range, $dateFromParts errors. Starting in MongoDB 4.4, the lower bound for this value is 1. In previous versions of MongoDB, the lower bound was 0. + */ + year?: NumberExpression; + /** + * Month. Can be any expression that evaluates to a number. + * + * Defaults to 1. + * + * Value range: 1-12 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + month?: NumberExpression; + /** + * Day of month. Can be any expression that evaluates to a number. + * + * Defaults to 1. + * + * Value range: 1-31 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + day?: NumberExpression; + /** + * Hour. Can be any expression that evaluates to a number. + * + * Defaults to 0. + * + * Value range: 0-23 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + hour?: NumberExpression; + /** + * Minute. Can be any expression that evaluates to a number. + * + * Defaults to 0. + * + * Value range: 0-59 Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + minute?: NumberExpression; + /** + * Second. Can be any expression that evaluates to a number. + * + * Defaults to 0. + * + * Value range: 0-59 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + second?: NumberExpression; + /** + * Millisecond. Can be any expression that evaluates to a number. + * + * Defaults to 0. + * + * Value range: 0-999 + * + * Starting in MongoDB 4.0, if the number specified is outside this range, $dateFromParts incorporates the difference in the date calculation. See Value Range for examples. + */ + millisecond?: NumberExpression; + /** + * The timezone to carry out the operation. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface DateFromString { + /** + * Converts a date/time string to a date object. + * + * @version 3.6 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateFromString/#mongodb-expression-exp.-dateFromString + */ + $dateFromString: { + dateString: StringExpression; + /** + * The date format specification of the dateString. The format can be any expression that evaluates to a string literal, containing 0 or more format specifiers. For a list of specifiers available, see Format Specifiers. + * + * If unspecified, $dateFromString uses "%Y-%m-%dT%H:%M:%S.%LZ" as the default format. + * @version 4.0 + */ + format?: FormatString; + /** + * The time zone to use to format the date. + * + * Note: If the dateString argument is formatted like '2017-02-08T12:10:40.787Z', in which the 'Z' at the end indicates Zulu time (UTC time zone), you cannot specify the timezone argument. + */ + timezone?: tzExpression; + /** + * Optional. If $dateFromString encounters an error while parsing the given dateString, it outputs the result value of the provided onError expression. This result value can be of any type. + * + * If you do not specify onError, $dateFromString throws an error if it cannot parse dateString. + */ + onError?: Expression; + /** + * Optional. If the dateString provided to $dateFromString is null or missing, it outputs the result value of the provided onNull expression. This result value can be of any type. + * + * If you do not specify onNull and dateString is null or missing, then $dateFromString outputs null. + */ + onNull?: Expression; + }; + } + + export interface DateSubtract { + /** + * Subtracts a number of time units from a date object. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateSubtract/#mongodb-expression-exp.-dateSubtract + */ + $dateSubtract: { + /** + * The beginning date, in UTC, for the subtraction operation. The startDate can be any expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + startDate: DateExpression; + /** + * The unit of time, specified as an expression that must resolve to one of these strings: + * - year + * - quarter + * - week + * - month + * - day + * - hour + * - minute + * - second + * - millisecond + * + * Together, binSize and unit specify the time period used in the $dateTrunc calculation. + */ + unit: StringExpression; + /** + * The number of units subtracted from the startDate. The amount is an expression that resolves to an integer or long. The amount can also resolve to an integral decimal and or a double if that value can be converted to a long without loss of precision. + */ + amount: NumberExpression; + /** + * The timezone to carry out the operation. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface DateToParts { + /** + * Returns a document containing the constituent parts of a date. + * + * @version 3.6 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateToParts/#mongodb-expression-exp.-dateToParts + */ + $dateToParts: { + /** + * The input date for which to return parts. can be any expression that resolves to a Date, a Timestamp, or an ObjectID. For more information on expressions, see Expressions. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + * + * @version 3.6 + */ + timezone?: tzExpression; + /** + * If set to true, modifies the output document to use ISO week date fields. Defaults to false. + */ + iso8601?: boolean; + }; + } + + export interface DateToString { + /** + * Returns the date as a formatted string. + * + * @version 3.6 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateToString/#mongodb-expression-exp.-dateToString + */ + $dateToString: { + /** + * The date to convert to string. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The date format specification. can be any string literal, containing 0 or more format specifiers. For a list of specifiers available, see Format Specifiers. + * + * If unspecified, $dateToString uses "%Y-%m-%dT%H:%M:%S.%LZ" as the default format. + * + * Changed in version 4.0: The format field is optional if featureCompatibilityVersion (fCV) is set to "4.0" or greater. For more information on fCV, see setFeatureCompatibilityVersion. + */ + format?: FormatString; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + * + * @version 3.6 + */ + timezone?: tzExpression; + /** + * The value to return if the date is null or missing. The arguments can be any valid expression. + * + * If unspecified, $dateToString returns null if the date is null or missing. + * + * Changed in version 4.0: Requires featureCompatibilityVersion (fCV) set to "4.0" or greater. For more information on fCV, see setFeatureCompatibilityVersion. + */ + onNull?: Expression; + }; + } + + export interface DateTrunc { + /** + * Truncates a date. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateTrunc/#mongodb-expression-exp.-dateTrunc + */ + $dateTrunc: { + /** + * The date to truncate, specified in UTC. The date can be any expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The unit of time, specified as an expression that must resolve to one of these strings: + * - year + * - quarter + * - week + * - month + * - day + * - hour + * - minute + * - second + * - millisecond + * + * Together, binSize and unit specify the time period used in the $dateTrunc calculation. + */ + unit: StringExpression; + /** + * The numeric time value, specified as an expression that must resolve to a positive non-zero number. Defaults to 1. + * + * Together, binSize and unit specify the time period used in the $dateTrunc calculation. + */ + binSize?: NumberExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + /** + * Used when the unit is equal to week. Defaults to Sunday. The startOfWeek parameter is an expression that resolves to a case insensitive string: + * - monday (or mon) + * - tuesday (or tue) + * - wednesday (or wed) + * - thursday (or thu) + * - friday (or fri) + * - saturday (or sat) + * - sunday (or sun) + */ + startOfWeek?: StringExpression; + } + } + + export interface DayOfMonth { + /** + * Returns the day of the month for a date as a number between 1 and 31. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dayOfMonth/#mongodb-expression-exp.-dayOfMonth + */ + $dayOfMonth: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface DayOfWeek { + /** + * Returns the day of the week for a date as a number between 1 (Sunday) and 7 (Saturday). + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dayOfWeek/#mongodb-expression-exp.-dayOfWeek + */ + $dayOfWeek: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface DayOfYear { + /** + * Returns the day of the year for a date as a number between 1 and 366 (leap year). + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/dayOfYear/#mongodb-expression-exp.-dayOfYear + */ + $dayOfYear: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface Hour { + /** + * Returns the hour for a date as a number between 0 and 23. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/hour/#mongodb-expression-exp.-hour + */ + $hour: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface IsoDayOfWeek { + /** + * Returns the weekday number in ISO 8601 format, ranging from 1 (for Monday) to 7 (for Sunday). + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoDayOfWeek/#mongodb-expression-exp.-isoDayOfWeek + */ + $isoDayOfWeek: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface IsoWeek { + /** + * Returns the week number in ISO 8601 format, ranging from 1 to 53. Week numbers start at 1 with the week (Monday through Sunday) that contains the year's first Thursday. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoWeek/#mongodb-expression-exp.-isoWeek + */ + $isoWeek: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface IsoWeekYear { + /** + * Returns the year number in ISO 8601 format. The year starts with the Monday of week 1 (ISO 8601) and ends with the Sunday of the last week (ISO 8601). + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoWeekYear/#mongodb-expression-exp.-isoWeekYear + */ + $isoWeekYear: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface Millisecond { + /** + * Returns the milliseconds of a date as a number between 0 and 999. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/millisecond/#mongodb-expression-exp.-millisecond + */ + $millisecond: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface Minute { + /** + * Returns the minute for a date as a number between 0 and 59. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/minute/#mongodb-expression-exp.-minute + */ + $minute: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface Month { + /** + * Returns the month for a date as a number between 1 (January) and 12 (December). + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/month/#mongodb-expression-exp.-month + */ + $month: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface Second { + /** + * Returns the seconds for a date as a number between 0 and 60 (leap seconds). + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/second/#mongodb-expression-exp.-second + */ + $second: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface ToDate { + /** + * Converts value to a Date. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toDate/#mongodb-expression-exp.-toDate + */ + $toDate: Expression; + } + + export interface Week { + /** + * Returns the week number for a date as a number between 0 (the partial week that precedes the first Sunday of the year) and 53 (leap year). + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/week/#mongodb-expression-exp.-week + */ + $week: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface Year { + /** + * Returns the year for a date as a number (e.g. 2014). + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/year/#mongodb-expression-exp.-year + */ + $year: DateExpression | { + /** + * The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID. + */ + date: DateExpression; + /** + * The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC. + */ + timezone?: tzExpression; + }; + } + + export interface And { + /** + * Returns true only when all its expressions evaluate to true. Accepts any number of argument expressions. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/and/#mongodb-expression-exp.-and + */ + $and: (Expression | Record)[]; + } + + export interface Not { + /** + * Returns the boolean value that is the opposite of its argument expression. Accepts a single argument expression. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/not/#mongodb-expression-exp.-not + */ + $not: [Expression]; + } + + export interface Or { + /** + * Returns true when any of its expressions evaluates to true. Accepts any number of argument expressions. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/or/#mongodb-expression-exp.-or + */ + $or: (Expression | Record)[]; + } + + export interface Cmp { + /** + * Returns 0 if the two values are equivalent, 1 if the first value is greater than the second, and -1 if the first value is less than the second. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cmp/#mongodb-expression-exp.-cmp + */ + $cmp: [Record | Expression, Record | Expression]; + } + + export interface Eq { + /** + * Returns true if the values are equivalent. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/eq/#mongodb-expression-exp.-eq + */ + $eq: AnyExpression | [AnyExpression, AnyExpression]; + } + + export interface Gt { + /** + * Returns true if the first value is greater than the second. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/gt/#mongodb-expression-exp.-gt + */ + $gt: NumberExpression | [NumberExpression, NumberExpression]; + } + + export interface Gte { + /** + * Returns true if the first value is greater than or equal to the second. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/gte/#mongodb-expression-exp.-gte + */ + $gte: NumberExpression | [NumberExpression, NumberExpression]; + } + + export interface Lt { + /** + * Returns true if the first value is less than the second. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/lt/#mongodb-expression-exp.-lt + */ + $lt: NumberExpression | [NumberExpression, NumberExpression]; + } + + export interface Lte { + /** + * Returns true if the first value is less than or equal to the second. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/lte/#mongodb-expression-exp.-lte + */ + $lte: NumberExpression | [NumberExpression, NumberExpression]; + } + + export interface Ne { + /** + * Returns true if the values are not equivalent. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ne/#mongodb-expression-exp.-ne + */ + $ne: Expression | [Expression, Expression | NullExpression] | null; + } + + export interface Cond { + /** + * A ternary operator that evaluates one expression, and depending on the result, returns the value of one of the other two expressions. Accepts either three expressions in an ordered list or three named parameters. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/cond/#mongodb-expression-exp.-cond + */ + $cond: { if: Expression, then: AnyExpression, else: AnyExpression } | [BooleanExpression, AnyExpression, AnyExpression]; + } + + export interface IfNull { + /** + * Returns either the non-null result of the first expression or the result of the second expression if the first expression results in a null result. Null result encompasses instances of undefined values or missing fields. Accepts two expressions as arguments. The result of the second expression can be null. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ifNull/#mongodb-expression-exp.-ifNull + */ + $ifNull: Expression[]; + } + + export interface Switch { + /** + * Evaluates a series of case expressions. When it finds an expression which evaluates to true, $switch executes a specified expression and breaks out of the control flow. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/switch/#mongodb-expression-exp.-switch + */ + $switch: { + /** + * An array of control branch documents. Each branch is a document with the following fields: + * - $case + * - $then + */ + branches: { case: Expression, then: Expression }[]; + /** + * The path to take if no branch case expression evaluates to true. + * + * Although optional, if default is unspecified and no branch case evaluates to true, $switch returns an error. + */ + default: Expression; + }; + } + + export interface ArrayElemAt { + /** + * Returns the element at the specified array index. + * + * @version 3.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/arrayElemAt/#mongodb-expression-exp.-arrayElemAt + */ + $arrayElemAt: [ArrayExpression, NumberExpression]; + } + + export interface ArrayToObject { + /** + * Converts an array of key value pairs to a document. + * + * @version 3.4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/arrayToObject/#mongodb-expression-exp.-arrayToObject + */ + $arrayToObject: ArrayExpression; + } + + export interface ConcatArrays { + /** + * Concatenates arrays to return the concatenated array. + * + * @version 3.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/concatArrays/#mongodb-expression-exp.-concatArrays + */ + $concatArrays: Expression[]; + } + + export interface Filter { + /** + * Selects a subset of the array to return an array with only the elements that match the filter condition. + * + * @version 3.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/filter/#mongodb-expression-exp.-filter + */ + $filter: { + /** + * An expression that resolves to an array. + */ + input: ArrayExpression; + /** + * A name for the variable that represents each individual element of the input array. If no name is specified, the variable name defaults to this. + */ + as?: string; + /** + * An expression that resolves to a boolean value used to determine if an element should be included in the output array. The expression references each element of the input array individually with the variable name specified in as. + */ + cond: BooleanExpression; + /** + * A number expression that restricts the number of matching array elements that $filter returns. You cannot specify a limit less than 1. The matching array elements are returned in the order they appear in the input array. + * + * If the specified limit is greater than the number of matching array elements, $filter returns all matching array elements. + * If the limit is null, $filter returns all matching array elements. + * + * @version 5.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/filter/#using-the-limit-field + */ + limit?: NumberExpression; + } + } + + export interface First { + /** + * Returns the first array element. Distinct from $first accumulator. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/first/#mongodb-expression-exp.-first + */ + $first: Expression; + } + + export interface In { + /** + * Returns a boolean indicating whether a specified value is in an array. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/in/#mongodb-expression-exp.-in + */ + $in: [Expression, ArrayExpression]; + } + + export interface IndexOfArray { + /** + * Searches an array for an occurrence of a specified value and returns the array index of the first occurrence. If the substring is not found, returns -1. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfArray/#mongodb-expression-exp.-indexOfArray + */ + $indexOfArray: [ArrayExpression, Expression] | [ArrayExpression, Expression, NumberExpression] | [ArrayExpression, Expression, NumberExpression, NumberExpression]; + } + + export interface IsArray { + /** + * Determines if the operand is an array. Returns a boolean. + * + * @version 3.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isArray/#mongodb-expression-exp.-isArray + */ + $isArray: [Expression]; + } + + export interface Last { + /** + * Returns the last array element. Distinct from $last accumulator. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/last/#mongodb-expression-exp.-last + */ + $last: Expression; + } + + export interface LinearFill { + /** + * Fills null and missing fields in a window using linear interpolation based on surrounding field values. + * + * @version 5.3 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/linearFill + */ + $linearFill: Expression + } + + export interface Locf { + /** + * Last observation carried forward. Sets values for null and missing fields in a window to the last non-null value for the field. + * + * @version 5.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/locf + */ + $locf: Expression + } + + export interface Map { + /** + * Applies a subexpression to each element of an array and returns the array of resulting values in order. Accepts named parameters. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/map/#mongodb-expression-exp.-map + */ + $map: { + /** + * An expression that resolves to an array. + */ + input: ArrayExpression; + /** + * A name for the variable that represents each individual element of the input array. If no name is specified, the variable name defaults to this. + */ + as?: string; + /** + * An expression that is applied to each element of the input array. The expression references each element individually with the variable name specified in as. + */ + in: Expression; + }; + } + + export interface ObjectToArray { + /** + * Converts a document to an array of documents representing key-value pairs. + * + * @version 3.4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/objectToArray/#mongodb-expression-exp.-objectToArray + */ + $objectToArray: ObjectExpression; + } + + export interface Range { + /** + * Outputs an array containing a sequence of integers according to user-defined inputs. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/range/#mongodb-expression-exp.-range + */ + $range: [NumberExpression, NumberExpression] | [NumberExpression, NumberExpression, NumberExpression]; + } + + export interface Reduce { + /** + * Applies an expression to each element in an array and combines them into a single value. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/reduce/#mongodb-expression-exp.-reduce + */ + $reduce: { + /** + * Can be any valid expression that resolves to an array. For more information on expressions, see Expressions. + * + * If the argument resolves to a value of null or refers to a missing field, $reduce returns null. + * + * If the argument does not resolve to an array or null nor refers to a missing field, $reduce returns an error. + */ + input: ArrayExpression; + /** + * The initial cumulative value set before in is applied to the first element of the input array. + */ + initialValue: Expression; + /** + * A valid expression that $reduce applies to each element in the input array in left-to-right order. Wrap the input value with $reverseArray to yield the equivalent of applying the combining expression from right-to-left. + * + * During evaluation of the in expression, two variables will be available: + * - `value` is the variable that represents the cumulative value of the expression. + * - `this` is the variable that refers to the element being processed. + */ + in: Expression; + }; + } + + export interface ReverseArray { + /** + * Returns an array with the elements in reverse order. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/reverseArray/#mongodb-expression-exp.-reverseArray + */ + $reverseArray: ArrayExpression; + } + + export interface Size { + /** + * Returns the number of elements in the array. Accepts a single expression as argument. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/size/#mongodb-expression-exp.-size + */ + $size: ArrayExpression; + } + + export interface Slice { + /** + * Returns a subset of an array. + * + * @version 3.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/slice/#mongodb-expression-exp.-slice + */ + $slice: [ArrayExpression, NumberExpression] | [ArrayExpression, NumberExpression, NumberExpression]; + } + + export interface Zip { + /** + * Merge two arrays together. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/zip/#mongodb-expression-exp.-zip + */ + $zip: { + /** + * An array of expressions that resolve to arrays. The elements of these input arrays combine to form the arrays of the output array. + * + * If any of the inputs arrays resolves to a value of null or refers to a missing field, $zip returns null. + * + * If any of the inputs arrays does not resolve to an array or null nor refers to a missing field, $zip returns an error. + */ + inputs: ArrayExpression[]; + /** + * A boolean which specifies whether the length of the longest array determines the number of arrays in the output array. + * + * The default value is false: the shortest array length determines the number of arrays in the output array. + */ + useLongestLength?: boolean; + /** + * An array of default element values to use if the input arrays have different lengths. You must specify useLongestLength: true along with this field, or else $zip will return an error. + * + * If useLongestLength: true but defaults is empty or not specified, $zip uses null as the default value. + * + * If specifying a non-empty defaults, you must specify a default for each input array or else $zip will return an error. + */ + defaults?: ArrayExpression; + }; + } + + export interface Concat { + /** + * Concatenates any number of strings. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/concat/#mongodb-expression-exp.-concat + */ + $concat: StringExpression[]; + } + + export interface IndexOfBytes { + /** + * Searches a string for an occurrence of a substring and returns the UTF-8 byte index of the first occurrence. If the substring is not found, returns -1. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfBytes/#mongodb-expression-exp.-indexOfBytes + */ + $indexOfBytes: [StringExpression, StringExpression] | [StringExpression, StringExpression, NumberExpression] | [StringExpression, StringExpression, NumberExpression, NumberExpression]; + } + + export interface IndexOfCP { + /** + * Searches a string for an occurrence of a substring and returns the UTF-8 code point index of the first occurrence. If the substring is not found, returns -1 + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfCP/#mongodb-expression-exp.-indexOfCP + */ + $indexOfCP: [StringExpression, StringExpression] | [StringExpression, StringExpression, NumberExpression] | [StringExpression, StringExpression, NumberExpression, NumberExpression]; + } + + export interface Ltrim { + /** + * Removes whitespace or the specified characters from the beginning of a string. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/ltrim/#mongodb-expression-exp.-ltrim + */ + $ltrim: { + /** + * The string to trim. The argument can be any valid expression that resolves to a string. For more information on expressions, see Expressions. + */ + input: StringExpression; + /** + * The character(s) to trim from the beginning of the input. + * + * The argument can be any valid expression that resolves to a string. The $ltrim operator breaks down the string into individual UTF code point to trim from input. + * + * If unspecified, $ltrim removes whitespace characters, including the null character. For the list of whitespace characters, see Whitespace Characters. + */ + chars?: StringExpression; + }; + } + + export interface RegexFind { + /** + * Applies a regular expression (regex) to a string and returns information on the first matched substring. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFind/#mongodb-expression-exp.-regexFind + */ + $regexFind: { + /** + * The string on which you wish to apply the regex pattern. Can be a string or any valid expression that resolves to a string. + */ + input: Expression; // TODO: Resolving to string, which ones? + /** + * The regex pattern to apply. Can be any valid expression that resolves to either a string or regex pattern //. When using the regex //, you can also specify the regex options i and m (but not the s or x options): + * - "pattern" + * - /pattern/ + * - /pattern/options + * + * Alternatively, you can also specify the regex options with the options field. To specify the s or x options, you must use the options field. + * + * You cannot specify options in both the regex and the options field. + */ + regex: RegExp | string; + /** + * The following are available for use with regular expression. + * + * Note: You cannot specify options in both the regex and the options field. + * + * Option Description + * + * `i` Case insensitivity to match both upper and lower cases. You can specify the option in the options field or as part of the regex field. + * + * `m` For patterns that include anchors (i.e. ^ for the start, $ for the end), match at the beginning or end of each line for strings with multiline values. Without this option, these anchors match at beginning or end of the string. + * If the pattern contains no anchors or if the string value has no newline characters (e.g. \n), the m option has no effect. + * + * `x` "Extended" capability to ignore all white space characters in the pattern unless escaped or included in a character class. + * Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in complicated patterns. This only applies to data characters; white space characters may never appear within special character sequences in a pattern. + * The x option does not affect the handling of the VT character (i.e. code 11). + * You can specify the option only in the options field. + * + * `s` Allows the dot character (i.e. .) to match all characters including newline characters. + * You can specify the option only in the options field. + */ + options?: RegexOptions; + }; + } + + export interface RegexFindAll { + /** + * Applies a regular expression (regex) to a string and returns information on the all matched substrings. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFindAll/#mongodb-expression-exp.-regexFindAll + */ + $regexFindAll: { + /** + * The string on which you wish to apply the regex pattern. Can be a string or any valid expression that resolves to a string. + */ + input: Expression; // TODO: Resolving to string, which ones? + /** + * The regex pattern to apply. Can be any valid expression that resolves to either a string or regex pattern //. When using the regex //, you can also specify the regex options i and m (but not the s or x options): + * - "pattern" + * - /pattern/ + * - /pattern/options + * + * Alternatively, you can also specify the regex options with the options field. To specify the s or x options, you must use the options field. + * + * You cannot specify options in both the regex and the options field. + */ + regex: RegExp | string; + /** + * The following are available for use with regular expression. + * + * Note: You cannot specify options in both the regex and the options field. + * + * Option Description + * + * `i` Case insensitivity to match both upper and lower cases. You can specify the option in the options field or as part of the regex field. + * + * `m` For patterns that include anchors (i.e. ^ for the start, $ for the end), match at the beginning or end of each line for strings with multiline values. Without this option, these anchors match at beginning or end of the string. + * If the pattern contains no anchors or if the string value has no newline characters (e.g. \n), the m option has no effect. + * + * `x` "Extended" capability to ignore all white space characters in the pattern unless escaped or included in a character class. + * Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in complicated patterns. This only applies to data characters; white space characters may never appear within special character sequences in a pattern. + * The x option does not affect the handling of the VT character (i.e. code 11). + * You can specify the option only in the options field. + * + * `s` Allows the dot character (i.e. .) to match all characters including newline characters. + * You can specify the option only in the options field. + */ + options?: RegexOptions; + }; + } + + export interface RegexMatch { + /** + * Applies a regular expression (regex) to a string and returns a boolean that indicates if a match is found or not. + * + * @version 4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexMatch/#mongodb-expression-exp.-regexMatch + */ + $regexMatch: { + /** + * The string on which you wish to apply the regex pattern. Can be a string or any valid expression that resolves to a string. + */ + input: Expression; // TODO: Resolving to string, which ones? + /** + * The regex pattern to apply. Can be any valid expression that resolves to either a string or regex pattern //. When using the regex //, you can also specify the regex options i and m (but not the s or x options): + * - "pattern" + * - /pattern/ + * - /pattern/options + * + * Alternatively, you can also specify the regex options with the options field. To specify the s or x options, you must use the options field. + * + * You cannot specify options in both the regex and the options field. + */ + regex: RegExp | string; + /** + * The following are available for use with regular expression. + * + * Note: You cannot specify options in both the regex and the options field. + * + * Option Description + * + * `i` Case insensitivity to match both upper and lower cases. You can specify the option in the options field or as part of the regex field. + * + * `m` For patterns that include anchors (i.e. ^ for the start, $ for the end), match at the beginning or end of each line for strings with multiline values. Without this option, these anchors match at beginning or end of the string. + * If the pattern contains no anchors or if the string value has no newline characters (e.g. \n), the m option has no effect. + * + * `x` "Extended" capability to ignore all white space characters in the pattern unless escaped or included in a character class. + * Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in complicated patterns. This only applies to data characters; white space characters may never appear within special character sequences in a pattern. + * The x option does not affect the handling of the VT character (i.e. code 11). + * You can specify the option only in the options field. + * + * `s` Allows the dot character (i.e. .) to match all characters including newline characters. + * You can specify the option only in the options field. + */ + options?: RegexOptions; + }; + } + + export interface ReplaceOne { + /** + * Replaces the first instance of a matched string in a given input. + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceOne/#mongodb-expression-exp.-replaceOne + */ + $replaceOne: { + /** + * The string on which you wish to apply the find. Can be any valid expression that resolves to a string or a null. If input refers to a field that is missing, $replaceOne returns null. + */ + input: StringExpression; + /** + * The string to search for within the given input. Can be any valid expression that resolves to a string or a null. If find refers to a field that is missing, $replaceOne returns null. + */ + find: StringExpression; + /** + * The string to use to replace the first matched instance of find in input. Can be any valid expression that resolves to a string or a null. + */ + replacement: StringExpression; + }; + } + + export interface ReplaceAll { + /** + * Replaces all instances of a matched string in a given input. + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceAll/#mongodb-expression-exp.-replaceAll + */ + $replaceAll: { + /** + * The string on which you wish to apply the find. Can be any valid expression that resolves to a string or a null. If input refers to a field that is missing, $replaceAll returns null. + */ + input: StringExpression; + /** + * The string to search for within the given input. Can be any valid expression that resolves to a string or a null. If find refers to a field that is missing, $replaceAll returns null. + */ + find: StringExpression; + /** + * The string to use to replace all matched instances of find in input. Can be any valid expression that resolves to a string or a null. + */ + replacement: StringExpression; + }; + } + + export interface Rtrim { + /** + * Removes whitespace or the specified characters from the end of a string. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/rtrim/#mongodb-expression-exp.-rtrim + */ + $rtrim: { + /** + * The string to trim. The argument can be any valid expression that resolves to a string. For more information on expressions, see Expressions. + */ + input: StringExpression; + /** + * The character(s) to trim from the beginning of the input. + * + * The argument can be any valid expression that resolves to a string. The $rtrim operator breaks down the string into individual UTF code point to trim from input. + * + * If unspecified, $rtrim removes whitespace characters, including the null character. For the list of whitespace characters, see Whitespace Characters. + */ + chars?: StringExpression; + }; + } + + export interface Split { + /** + * Splits a string into substrings based on a delimiter. Returns an array of substrings. If the delimiter is not found within the string, returns an array containing the original string. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/split/#mongodb-expression-exp.-split + */ + $split: [StringExpression, StringExpression]; + } + + export interface StrLenBytes { + /** + * Returns the number of UTF-8 encoded bytes in a string. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenBytes/#mongodb-expression-exp.-strLenBytes + */ + $strLenBytes: StringExpression; + } + + export interface StrLenCP { + /** + * Returns the number of UTF-8 code points in a string. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenCP/#mongodb-expression-exp.-strLenCP + */ + $strLenCP: StringExpression; + } + + export interface Strcasecmp { + /** + * Performs case-insensitive string comparison and returns: 0 if two strings are equivalent, 1 if the first string is greater than the second, and -1 if the first string is less than the second. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/strcasecmp/#mongodb-expression-exp.-strcasecmp + */ + $strcasecmp: [StringExpression, StringExpression]; + } + + export interface Substr { + /** + * Deprecated. Use $substrBytes or $substrCP. + * + * @deprecated 3.4 + * @alias {Expression.SubstrBytes} + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/substr/#mongodb-expression-exp.-substr + */ + $substr: [StringExpression, number, number]; + } + + export interface SubstrBytes { + /** + * Returns the substring of a string. Starts with the character at the specified UTF-8 byte index (zero-based) in the string and continues for the specified number of bytes. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/substrBytes/#mongodb-expression-exp.-substrBytes + */ + $substrBytes: [StringExpression, number, number]; + } + + export interface SubstrCP { + /** + * Returns the substring of a string. Starts with the character at the specified UTF-8 code point (CP) index (zero-based) in the string and continues for the number of code points specified. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/substrCP/#mongodb-expression-exp.-substrCP + */ + $substrCP: [StringExpression, number, number]; + } + + export interface ToLower { + /** + * Converts a string to lowercase. Accepts a single argument expression. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toLower/#mongodb-expression-exp.-toLower + */ + $toLower: StringExpression; + } + + export interface ToString { + /** + * Converts value to a string. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toString/#mongodb-expression-exp.-toString + */ + $toString: Expression; + } + + export interface Trim { + /** + * Removes whitespace or the specified characters from the beginning and end of a string. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/trim/#mongodb-expression-exp.-trim + */ + $trim: { + /** + * The string to trim. The argument can be any valid expression that resolves to a string. For more information on expressions, see Expressions. + */ + input: StringExpression; + /** + * The character(s) to trim from the beginning of the input. + * + * The argument can be any valid expression that resolves to a string. The $trim operator breaks down the string into individual UTF code point to trim from input. + * + * If unspecified, $trim removes whitespace characters, including the null character. For the list of whitespace characters, see Whitespace Characters. + */ + chars?: StringExpression; + }; + } + + export interface ToUpper { + /** + * Converts a string to uppercase. Accepts a single argument expression. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toUpper/#mongodb-expression-exp.-toUpper + */ + $toUpper: StringExpression; + } + + export interface Literal { + + /** + * Returns a value without parsing. Use for values that the aggregation pipeline may interpret as an + * expression. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/literal/#mongodb-expression-exp.-literal + */ + $literal: any; + } + + export interface GetField { + + /** + * Returns the value of a specified field from a document. If you don't specify an object, $getField returns + * the value of the field from $$CURRENT. + * + * @version 4.4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/getField/#mongodb-expression-exp.-getField + */ + $getField: { + /** + * Field in the input object for which you want to return a value. field can be any valid expression that + * resolves to a string constant. + */ + field: StringExpression; + /** + * A valid expression that contains the field for which you want to return a value. input must resolve to an + * object, missing, null, or undefined. If omitted, defaults to the document currently being processed in the + * pipeline ($$CURRENT). + */ + input?: ObjectExpression | SpecialPathVariables | NullExpression; + } + } + + export interface Rand { + + /** + * Returns a random float between 0 and 1 each time it is called. + * + * @version 4.4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/rand/#mongodb-expression-exp.-rand + */ + $rand: Record; + } + + export interface SampleRate { + + /** + * Matches a random selection of input documents. The number of documents selected approximates the sample + * rate expressed as a percentage of the total number of documents. + * + * @version 4.4.2 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sampleRate/#mongodb-expression-exp.-sampleRate + */ + $sampleRate: number; + } + + export interface MergeObjects { + + /** + * Combines multiple documents into a single document. + * + * @version 3.6 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/mergeObjects/#mongodb-expression-exp.-mergeObjects + */ + $mergeObjects: ObjectExpression | ObjectExpression[] | ArrayExpression | Record; + } + + export interface SetField { + + /** + * Adds, updates, or removes a specified field in a document. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setField/#mongodb-expression-exp.-setField + */ + $setField: { + /** + * Field in the input object that you want to add, update, or remove. field can be any valid expression that + * resolves to a string constant. + */ + field: StringExpression; + /** + * Document that contains the field that you want to add or update. input must resolve to an object, missing, + * null, or undefined + */ + input?: ObjectExpression | NullExpression; + /** + * The value that you want to assign to field. value can be any valid expression. + */ + value?: Expression | SpecialPathVariables; + } + } + + export interface UnsetField { + + /** + * Removes a specified field in a document. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/unsetField/#mongodb-expression-exp.-unsetField + */ + $unsetField: { + /** + * Field in the input object that you want to add, update, or remove. field can be any valid expression that + * resolves to a string constant. + */ + field: StringExpression; + /** + * Document that contains the field that you want to add or update. input must resolve to an object, missing, + * null, or undefined. + */ + input?: ObjectExpression | SpecialPathVariables | NullExpression; + } + } + + export interface Let { + + /** + * Binds variables for use in the specified expression, and returns the result of the expression. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/let/#mongodb-expression-exp.-let + */ + $let: { + /** + * Assignment block for the variables accessible in the in expression. To assign a variable, specify a + * string for the variable name and assign a valid expression for the value. + */ + vars: { [key: string]: Expression; }; + /** + * The expression to evaluate. + */ + in: Expression; + } + } + + export interface AllElementsTrue { + /** + * Evaluates an array as a set and returns true if no element in the array is false. Otherwise, returns false. An + * empty array returns true. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/allElementsTrue/#mongodb-expression-exp.-allElementsTrue + */ + $allElementsTrue: ArrayExpression; + } + + export interface AnyElementsTrue { + /** + * Evaluates an array as a set and returns true if any of the elements are true and false otherwise. An empty + * array returns false. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/anyElementsTrue/#mongodb-expression-exp.-anyElementsTrue + */ + $anyElementTrue: ArrayExpression; + } + + export interface SetDifference { + /** + * Takes two sets and returns an array containing the elements that only exist in the first set; i.e. performs a + * relative complement of the second set relative to the first. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setDifference/#mongodb-expression-exp.-setDifference + */ + $setDifference: [ArrayExpression, ArrayExpression]; + } + + export interface SetEquals { + /** + * Compares two or more arrays and returns true if they have the same distinct elements and false otherwise. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setEquals/#mongodb-expression-exp.-setEquals + */ + $setEquals: ArrayExpression[]; + } + + export interface SetIntersection { + /** + * Takes two or more arrays and returns an array that contains the elements that appear in every input array. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setIntersection/#mongodb-expression-exp.-setIntersection + */ + $setIntersection: ArrayExpression[]; + } + + export interface SetIsSubset { + /** + * Takes two arrays and returns true when the first array is a subset of the second, including when the first + * array equals the second array, and false otherwise. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setIsSubset/#mongodb-expression-exp.-setIsSubset + */ + $setIsSubset: [ArrayExpression, ArrayExpression]; + } + + export interface SetUnion { + /** + * Takes two or more arrays and returns an array containing the elements that appear in any input array. + * + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/setUnion/#mongodb-expression-exp.-setUnion + */ + $setUnion: ArrayExpression[]; + } + + export interface Accumulator { + /** + * Defines a custom accumulator operator. Accumulators are operators that maintain their state (e.g. totals, + * maximums, minimums, and related data) as documents progress through the pipeline. Use the $accumulator operator + * to execute your own JavaScript functions to implement behavior not supported by the MongoDB Query Language. See + * also $function. + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/accumulator/#mongodb-expression-exp.-accumulator + */ + $accumulator: { + /** + * Function used to initialize the state. The init function receives its arguments from the initArgs array + * expression. You can specify the function definition as either BSON type Code or String. + */ + init: CodeExpression; + /** + * Arguments passed to the init function. + */ + initArgs?: ArrayExpression; + /** + * Function used to accumulate documents. The accumulate function receives its arguments from the current state + * and accumulateArgs array expression. The result of the accumulate function becomes the new state. You can + * specify the function definition as either BSON type Code or String. + */ + accumulate: CodeExpression; + /** + * Arguments passed to the accumulate function. You can use accumulateArgs to specify what field value(s) to + * pass to the accumulate function. + */ + accumulateArgs: ArrayExpression; + /** + * Function used to merge two internal states. merge must be either a String or Code BSON type. merge returns + * the combined result of the two merged states. For information on when the merge function is called, see Merge + * Two States with $merge. + */ + merge: CodeExpression; + /** + * Function used to update the result of the accumulation. + */ + finalize?: CodeExpression; + /** + * The language used in the $accumulator code. + */ + lang: 'js'; + } + } + + export interface AddToSet { + /** + * Returns an array of all unique values that results from applying an expression to each document in a group. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/addToSet/#mongodb-expression-exp.-addToSet + */ + $addToSet: Expression | Record; + } + + export interface Avg { + /** + * Returns the average value of the numeric values. $avg ignores non-numeric values. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/avg/#mongodb-expression-exp.-avg + */ + $avg: Expression; + } + + export interface Count { + /** + * Returns the number of documents in a group. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/count/#mongodb-expression-exp.-count + */ + $count: Record | Path; + } + + export interface CovariancePop { + /** + * Returns the population covariance of two numeric expressions that are evaluated using documents in the + * $setWindowFields stage window. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/covariancePop/#mongodb-expression-exp.-covariancePop + */ + $covariancePop: [NumberExpression, NumberExpression]; + } + + export interface CovarianceSamp { + /** + * Returns the sample covariance of two numeric expressions that are evaluated using documents in the + * $setWindowFields stage window. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/covarianceSamp/#mongodb-expression-exp.-covarianceSamp + */ + $covarianceSamp: [NumberExpression, NumberExpression]; + } + + export interface DenseRank { + /** + * Returns the document position (known as the rank) relative to other documents in the $setWindowFields stage + * partition. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/denseRank/#mongodb-expression-exp.-denseRank + */ + $denseRank: Record; + } + + export interface Derivative { + /** + * Returns the average rate of change within the specified window, which is calculated using the: + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/derivative/#mongodb-expression-exp.-derivative + */ + $derivative: { + /** + * Specifies the expression to evaluate. The expression must evaluate to a number. + */ + input: NumberExpression; + /** + * A string that specifies the time unit. + */ + unit?: DateUnit; + } + } + + export interface DocumentNumber { + /** + * Returns the position of a document (known as the document number) in the $setWindowFields stage partition. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/documentNumber/#mongodb-expression-exp.-documentNumber + */ + $documentNumber: Record; + } + + export interface ExpMovingAvg { + /** + * Returns the exponential moving average of numeric expressions applied to documents in a partition defined in + * the $setWindowFields stage. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/expMovingAvg/#mongodb-expression-exp.-expMovingAvg + */ + $expMovingAvg: { + /** + * Specifies the expression to evaluate. Non-numeric expressions are ignored. + */ + input: Expression; + + /** + * An integer that specifies the number of historical documents that have a significant mathematical weight in + * the exponential moving average calculation, with the most recent documents contributing the most weight. + * + * You must specify either N or alpha. You cannot specify both. + */ + N: NumberExpression; + + /** + * A double that specifies the exponential decay value to use in the exponential moving average calculation. A + * higher alpha value assigns a lower mathematical significance to previous results from the calculation. + * + * You must specify either N or alpha. You cannot specify both. + */ + alpha?: never; + } | + { + /** + * Specifies the expression to evaluate. Non-numeric expressions are ignored. + */ + input: Expression; + + /** + * An integer that specifies the number of historical documents that have a significant mathematical weight in + * the exponential moving average calculation, with the most recent documents contributing the most weight. + * + * You must specify either N or alpha. You cannot specify both. + */ + N?: never; + + /** + * A double that specifies the exponential decay value to use in the exponential moving average calculation. A + * higher alpha value assigns a lower mathematical significance to previous results from the calculation. + * + * You must specify either N or alpha. You cannot specify both. + */ + alpha: NumberExpression; + } + } + + export interface Integral { + /** + * Returns the approximation of the area under a curve, which is calculated using the trapezoidal rule where each + * set of adjacent documents form a trapezoid using the: + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/integral/#mongodb-expression-exp.-integral + */ + $integral: { + /** + * Specifies the expression to evaluate. You must provide an expression that returns a number. + */ + input: NumberExpression; + + /** + * A string that specifies the time unit. + */ + unit?: DateUnit; + } + } + + export interface Max { + /** + * Returns the maximum value. $max compares both value and type, using the specified BSON comparison order for + * values of different types. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/max/#mongodb-expression-exp.-max + */ + $max: Expression | Expression[]; + } + + export interface Min { + /** + * Returns the minimum value. $min compares both value and type, using the specified BSON comparison order for + * values of different types. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/min/#mongodb-expression-exp.-min + */ + $min: Expression | Expression[]; + } + + export interface Push { + /** + * Returns an array of all values that result from applying an expression to documents. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/push/#mongodb-expression-exp.-push + */ + $push: Expression | Record; + } + + export interface Rank { + /** + * Returns the document position (known as the rank) relative to other documents in the $setWindowFields stage + * partition. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/rank/#mongodb-expression-exp.-rank + */ + $rank: Record; + } + + export interface Shift { + /** + * Returns the value from an expression applied to a document in a specified position relative to the current + * document in the $setWindowFields stage partition. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/shift/#mongodb-expression-exp.-shift + */ + $shift: { + /** + * Specifies an expression to evaluate and return in the output. + */ + output: Expression; + /** + * Specifies an integer with a numeric document position relative to the current document in the output. + */ + by: number; + /** + * Specifies an optional default expression to evaluate if the document position is outside of the implicit + * $setWindowFields stage window. The implicit window contains all the documents in the partition. + */ + default?: Expression; + } + } + + export interface StdDevPop { + /** + * Calculates the population standard deviation of the input values. Use if the values encompass the entire + * population of data you want to represent and do not wish to generalize about a larger population. $stdDevPop + * ignores non-numeric values. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/stdDevPop/#mongodb-expression-exp.-stdDevPop + */ + $stdDevPop: Expression; + } + + export interface StdDevSamp { + /** + * Calculates the sample standard deviation of the input values. Use if the values encompass a sample of a + * population of data from which to generalize about the population. $stdDevSamp ignores non-numeric values. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/stdDevSamp/#mongodb-expression-exp.-stdDevSamp + */ + $stdDevSamp: Expression; + } + + export interface Sum { + /** + * Calculates and returns the collective sum of numeric values. $sum ignores non-numeric values. + * + * @version 5.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/sum/#mongodb-expression-exp.-sum + */ + $sum: number | Expression | Expression[]; + } + + export interface Convert { + /** + * Checks if the specified expression resolves to one of the following numeric + * - Integer + * - Decimal + * - Double + * - Long + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/convert/#mongodb-expression-exp.-convert + */ + $convert: { + input: Expression; + to: K; + onError?: Expression; + onNull?: Expression; + }; + } + + export interface IsNumber { + /** + * Checks if the specified expression resolves to one of the following numeric + * - Integer + * - Decimal + * - Double + * - Long + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/isNumber/#mongodb-expression-exp.-isNumber + */ + $isNumber: Expression; + } + + export interface ToBool { + /** + * Converts a value to a boolean. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toBool/#mongodb-expression-exp.-toBool + */ + $toBool: Expression; + } + + export interface ToDecimal { + /** + * Converts a value to a decimal. If the value cannot be converted to a decimal, $toDecimal errors. If the value + * is null or missing, $toDecimal returns null. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toDecimal/#mongodb-expression-exp.-toDecimal + */ + $toDecimal: Expression; + } + + export interface ToDouble { + /** + * Converts a value to a double. If the value cannot be converted to an double, $toDouble errors. If the value is + * null or missing, $toDouble returns null. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toDouble/#mongodb-expression-exp.-toDouble + */ + $toDouble: Expression; + } + + export interface ToInt { + /** + * Converts a value to a long. If the value cannot be converted to a long, $toLong errors. If the value is null or + * missing, $toLong returns null. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toInt/#mongodb-expression-exp.-toInt + */ + $toInt: Expression; + } + + export interface ToLong { + /** + * Converts a value to a long. If the value cannot be converted to a long, $toLong errors. If the value is null or + * missing, $toLong returns null. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toLong/#mongodb-expression-exp.-toLong + */ + $toLong: Expression; + } + + export interface ToObjectId { + /** + * Converts a value to an ObjectId(). If the value cannot be converted to an ObjectId, $toObjectId errors. If the + * value is null or missing, $toObjectId returns null. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toObjectId/#mongodb-expression-exp.-toObjectId + */ + $toObjectId: Expression; + } + + export interface Top { + $top: { + sortBy: AnyObject, + output: Expression + }; + } + + export interface TopN { + $topN: { + n: Expression, + sortBy: AnyObject, + output: Expression + }; + } + + export interface ToString { + /** + * Converts a value to a string. If the value cannot be converted to a string, $toString errors. If the value is + * null or missing, $toString returns null. + * + * @version 4.0 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/toString/#mongodb-expression-exp.-toString + */ + $toString: Expression; + } + + export interface Type { + /** + * Returns a string that specifies the BSON type of the argument. + * + * @version 3.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/type/#mongodb-expression-exp.-type + */ + $type: Expression; + } + + export interface BinarySize { + /** + * Returns the size of a given string or binary data value's content in bytes. + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/binarySize/#mongodb-expression-exp.-binarySize + */ + $binarySize: NullExpression | StringExpression | BinaryExpression; + } + + export interface BsonSize { + /** + * Returns the size in bytes of a given document (i.e. bsontype Object) when encoded as BSON. You can use + * $bsonSize as an alternative to the Object.bsonSize() method. + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/bsonSize/#mongodb-expression-exp.-bsonSize + */ + $bsonSize: NullExpression | ObjectExpression; + } + + export interface Function { + /** + * Defines a custom aggregation function or expression in JavaScript. + * + * @version 4.4 + * @see https://www.mongodb.com/docs/manual/reference/operator/aggregation/function/#mongodb-expression-exp.-function + */ + $function: { + /** + * The function definition. You can specify the function definition as either BSON type Code or String. + */ + body: CodeExpression; + /** + * Arguments passed to the function body. If the body function does not take an argument, you can specify an + * empty array [ ] + */ + args: ArrayExpression; + /** + * The language used in the body. You must specify lang: "js". + */ + lang: 'js' + }; + } + } + + type Path = string; + + + export type Expression = + Path | + ArithmeticExpressionOperator | + ArrayExpressionOperator | + BooleanExpressionOperator | + ComparisonExpressionOperator | + ConditionalExpressionOperator | + CustomAggregationExpressionOperator | + DataSizeOperator | + DateExpressionOperator | + LiteralExpressionOperator | + MiscellaneousExpressionOperator | + ObjectExpressionOperator | + SetExpressionOperator | + StringExpressionOperator | + TextExpressionOperator | + TrigonometryExpressionOperator | + TypeExpressionOperator | + AccumulatorOperator | + VariableExpressionOperator | + WindowOperator | + Expression.Top | + Expression.TopN | + any; + + export type NullExpression = null; + + export type CodeExpression = + string | + Function; + + export type BinaryExpression = + Path; + + export type FunctionExpression = + Expression.Function; + + export type AnyExpression = + ArrayExpression | + BooleanExpression | + NumberExpression | + ObjectExpression | + StringExpression | + DateExpression | + BinaryExpression | + FunctionExpression | + ObjectIdExpression | + ConditionalExpressionOperator | + any; + + export type ObjectIdExpression = + TypeExpressionOperatorReturningObjectId; + + export type ArrayExpression = + T[] | + Path | + ArrayExpressionOperatorReturningAny | + ArrayExpressionOperatorReturningArray | + StringExpressionOperatorReturningArray | + ObjectExpressionOperatorReturningArray | + SetExpressionOperatorReturningArray | + LiteralExpressionOperatorReturningAny | + WindowOperatorReturningArray | + CustomAggregationExpressionOperatorReturningAny | + WindowOperatorReturningAny; + + export type BooleanExpression = + boolean | + Path | + BooleanExpressionOperator | + ArrayExpressionOperatorReturningAny | + ComparisonExpressionOperatorReturningBoolean | + StringExpressionOperatorReturningBoolean | + SetExpressionOperatorReturningBoolean | + LiteralExpressionOperatorReturningAny | + CustomAggregationExpressionOperatorReturningAny | + TypeExpressionOperatorReturningBoolean; + + export type NumberExpression = + number | + Path | + ArrayExpressionOperatorReturningAny | + ArrayExpressionOperatorReturningNumber | + ArithmeticExpressionOperator | + ComparisonExpressionOperatorReturningNumber | + TrigonometryExpressionOperator | + MiscellaneousExpressionOperatorReturningNumber | + StringExpressionOperatorReturningNumber | + LiteralExpressionOperatorReturningAny | + ObjectExpressionOperator | + SetExpressionOperator | + WindowOperatorReturningNumber | + WindowOperatorReturningAny | + DataSizeOperatorReturningNumber | + CustomAggregationExpressionOperatorReturningAny | + TypeExpressionOperatorReturningNumber | + DateExpression | + DateExpressionOperatorReturningNumber; + + export type ObjectExpression = + Path | + ArrayExpressionOperatorReturningAny | + DateExpressionOperatorReturningObject | + StringExpressionOperatorReturningObject | + ObjectExpressionOperatorReturningObject | + CustomAggregationExpressionOperatorReturningAny | + LiteralExpressionOperatorReturningAny; + + export type StringExpression = + Path | + ArrayExpressionOperatorReturningAny | + DateExpressionOperatorReturningString | + StringExpressionOperatorReturningString | + LiteralExpressionReturningAny | + CustomAggregationExpressionOperatorReturningAny | + TypeExpressionOperatorReturningString | + T; + + export type DateExpression = + Path | + NativeDate | + DateExpressionOperatorReturningDate | + TypeExpressionOperatorReturningDate | + LiteralExpressionReturningAny; + + export type ArithmeticExpressionOperator = + Expression.Abs | + Expression.Add | + Expression.Ceil | + Expression.Divide | + Expression.Exp | + Expression.Floor | + Expression.Ln | + Expression.Log | + Expression.Log10 | + Expression.Mod | + Expression.Multiply | + Expression.Pow | + Expression.Round | + Expression.Sqrt | + Expression.Subtract | + Expression.Trunc; + + export type ArrayExpressionOperator = + ArrayExpressionOperatorReturningAny | + ArrayExpressionOperatorReturningBoolean | + ArrayExpressionOperatorReturningNumber | + ArrayExpressionOperatorReturningObject; + + export type LiteralExpressionOperator = + Expression.Literal; + + export type LiteralExpressionReturningAny = + LiteralExpressionOperatorReturningAny; + + export type LiteralExpressionOperatorReturningAny = + Expression.Literal; + + export type MiscellaneousExpressionOperator = + Expression.Rand | + Expression.SampleRate; + + export type MiscellaneousExpressionOperatorReturningNumber = + Expression.Rand; + + export type ArrayExpressionOperatorReturningAny = + Expression.ArrayElemAt | + Expression.First | + Expression.Last | + Expression.Reduce; + + export type ArrayExpressionOperatorReturningArray = + Expression.ConcatArrays | + Expression.Filter | + Expression.Map | + Expression.ObjectToArray | + Expression.Range | + Expression.ReverseArray | + Expression.Slice | + Expression.Zip; + + export type ArrayExpressionOperatorReturningNumber = + Expression.IndexOfArray | + Expression.Size; + + export type ArrayExpressionOperatorReturningObject = + Expression.ArrayToObject; + + export type ArrayExpressionOperatorReturningBoolean = + Expression.In | + Expression.IsArray; + + export type BooleanExpressionOperator = + Expression.And | + Expression.Or | + Expression.Not; + + export type ComparisonExpressionOperator = + ComparisonExpressionOperatorReturningBoolean | + ComparisonExpressionOperatorReturningNumber; + + export type ComparisonExpressionOperatorReturningBoolean = + Expression.Eq | + Expression.Gt | + Expression.Gte | + Expression.Lt | + Expression.Lte | + Expression.Ne; + + export type ComparisonExpressionOperatorReturningNumber = + Expression.Cmp; + + export type ConditionalExpressionOperator = + Expression.Cond | + Expression.IfNull | + Expression.Switch; + + export type StringExpressionOperator = + StringExpressionOperatorReturningArray | + StringExpressionOperatorReturningBoolean | + StringExpressionOperatorReturningNumber | + StringExpressionOperatorReturningObject | + StringExpressionOperatorReturningString; + + export type StringExpressionOperatorReturningArray = + Expression.RegexFindAll | + Expression.Split; + + export type StringExpressionOperatorReturningBoolean = + Expression.RegexMatch; + + export type StringExpressionOperatorReturningNumber = + Expression.IndexOfBytes | + Expression.IndexOfCP | + Expression.Strcasecmp | + Expression.StrLenBytes | + Expression.StrLenCP; + + export type StringExpressionOperatorReturningObject = + Expression.RegexFind; + + export type StringExpressionOperatorReturningString = + Expression.Concat | + Expression.Ltrim | + Expression.Ltrim | + Expression.ReplaceOne | + Expression.ReplaceAll | + Expression.Substr | + Expression.SubstrBytes | + Expression.SubstrCP | + Expression.ToLower | + Expression.ToString | + Expression.ToUpper | + Expression.Trim; + + export type ObjectExpressionOperator = + Expression.MergeObjects | + Expression.ObjectToArray | + Expression.SetField | + Expression.UnsetField; + + export type ObjectExpressionOperatorReturningArray = + Expression.ObjectToArray; + + export type ObjectExpressionOperatorReturningObject = + Expression.MergeObjects | + Expression.SetField | + Expression.UnsetField; + + export type VariableExpressionOperator = + Expression.Let; + + export type VariableExpressionOperatorReturningAny = + Expression.Let; + + export type SetExpressionOperator = + Expression.AllElementsTrue | + Expression.AnyElementsTrue | + Expression.SetDifference | + Expression.SetEquals | + Expression.SetIntersection | + Expression.SetIsSubset | + Expression.SetUnion; + + export type SetExpressionOperatorReturningBoolean = + Expression.AllElementsTrue | + Expression.AnyElementsTrue | + Expression.SetEquals | + Expression.SetIsSubset; + + export type SetExpressionOperatorReturningArray = + Expression.SetDifference | + Expression.SetIntersection | + Expression.SetUnion; + + /** + * Trigonometry expressions perform trigonometric operations on numbers. + * Values that represent angles are always input or output in radians. + * Use $degreesToRadians and $radiansToDegrees to convert between degree + * and radian measurements. + */ + export type TrigonometryExpressionOperator = + Expression.Sin | + Expression.Cos | + Expression.Tan | + Expression.Asin | + Expression.Acos | + Expression.Atan | + Expression.Atan2 | + Expression.Asinh | + Expression.Acosh | + Expression.Atanh | + Expression.Sinh | + Expression.Cosh | + Expression.Tanh | + Expression.DegreesToRadians | + Expression.RadiansToDegrees; + + export type TextExpressionOperator = + Expression.Meta; + + export type WindowOperator = + Expression.AddToSet | + Expression.Avg | + Expression.Count | + Expression.CovariancePop | + Expression.CovarianceSamp | + Expression.DenseRank | + Expression.Derivative | + Expression.DocumentNumber | + Expression.ExpMovingAvg | + Expression.First | + Expression.Integral | + Expression.Last | + Expression.LinearFill | + Expression.Locf | + Expression.Max | + Expression.Min | + Expression.Push | + Expression.Rank | + Expression.Shift | + Expression.StdDevPop | + Expression.StdDevSamp | + Expression.Sum; + + export type WindowOperatorReturningAny = + Expression.First | + Expression.Last | + Expression.Shift; + + export type WindowOperatorReturningArray = + Expression.AddToSet | + Expression.Push; + + export type WindowOperatorReturningNumber = + Expression.Avg | + Expression.Count | + Expression.CovariancePop | + Expression.CovarianceSamp | + Expression.DenseRank | + Expression.DocumentNumber | + Expression.ExpMovingAvg | + Expression.Integral | + Expression.Max | + Expression.Min | + Expression.StdDevPop | + Expression.StdDevSamp | + Expression.Sum; + + export type TypeExpressionOperator = + Expression.Convert | + Expression.IsNumber | + Expression.ToBool | + Expression.ToDate | + Expression.ToDecimal | + Expression.ToDouble | + Expression.ToInt | + Expression.ToLong | + Expression.ToObjectId | + Expression.ToString | + Expression.Type; + + export type TypeExpressionOperatorReturningNumber = + Expression.Convert<'double' | 1 | 'int' | 16 | 'long' | 18 | 'decimal' | 19> | + Expression.ToDecimal | + Expression.ToDouble | + Expression.ToInt | + Expression.ToLong; + + export type TypeExpressionOperatorReturningBoolean = + Expression.Convert<'bool' | 8> | + Expression.IsNumber | + Expression.ToBool; + + + export type TypeExpressionOperatorReturningString = + Expression.Convert<'string' | 2> | + Expression.ToString | + Expression.Type; + + export type TypeExpressionOperatorReturningObjectId = + Expression.Convert<'objectId' | 7> | + Expression.ToObjectId; + + export type TypeExpressionOperatorReturningDate = + Expression.Convert<'date' | 9> | + Expression.ToDate; + + export type DataSizeOperator = + Expression.BinarySize | + Expression.BsonSize; + + export type DataSizeOperatorReturningNumber = + Expression.BinarySize | + Expression.BsonSize; + + export type CustomAggregationExpressionOperator = + Expression.Accumulator | + Expression.Function; + + export type CustomAggregationExpressionOperatorReturningAny = + Expression.Function; + + export type AccumulatorOperator = + Expression.Accumulator | + Expression.AddToSet | + Expression.Avg | + Expression.Count | + Expression.First | + Expression.Last | + Expression.Max | + Expression.MergeObjects | + Expression.Min | + Expression.Push | + Expression.StdDevPop | + Expression.StdDevSamp | + Expression.Sum | + Expression.Top | + Expression.TopN; + + export type tzExpression = UTCOffset | StringExpressionOperatorReturningBoolean | string; + + type hh = '-00' | '-01' | '-02' | '-03' | '-04' | '-05' | '-06' | '-07' | '-08' | '-09' | '-10' | '-11' | '-12' | + '+00' | '+01' | '+02' | '+03' | '+04' | '+05' | '+06' | '+07' | '+08' | '+09' | '+10' | '+11' | '+12' | '+13' | '+14'; + type mm = '00' | '30' | '45'; + + type UTCOffset = `${hh}` | `${hh}${mm}` | `${hh}:${mm}`; + + type RegexOptions = + 'i' | 'm' | 's' | 'x' | + 'is' | 'im' | 'ix' | 'si' | 'sm' | 'sx' | 'mi' | 'ms' | 'mx' | 'xi' | 'xs' | 'xm' | + 'ism' | 'isx' | 'ims' | 'imx' | 'ixs' | 'ixm' | 'sim' | 'six' | 'smi' | 'smx' | 'sxi' | 'sxm' | 'mis' | 'mix' | 'msi' | 'msx' | 'mxi' | 'mxs' | 'xis' | 'xim' | 'xsi' | 'xsm' | 'xmi' | 'xms' | + 'ismx' | 'isxm' | 'imsx' | 'imxs' | 'ixsm' | 'ixms' | 'simx' | 'sixm' | 'smix' | 'smxi' | 'sxim' | 'sxmi' | 'misx' | 'mixs' | 'msix' | 'msxi' | 'mxis' | 'mxsi' | 'xism' | 'xims' | 'xsim' | 'xsmi' | 'xmis' | 'xmsi'; + + type StartOfWeek = + 'monday' | 'mon' | + 'tuesday' | 'tue' | + 'wednesday' | 'wed' | + 'thursday' | 'thu' | + 'friday' | 'fri' | + 'saturday' | 'sat' | + 'sunday' | 'sun'; + + type DateUnit = 'year' | 'quarter' | 'week' | 'month' | 'day' | 'hour' | 'minute' | 'second' | 'millisecond'; + + type FormatString = string; + + export type DateExpressionOperator = + DateExpressionOperatorReturningDate | + DateExpressionOperatorReturningNumber | + DateExpressionOperatorReturningString | + DateExpressionOperatorReturningObject; + + export type DateExpressionOperatorReturningObject = + Expression.DateToParts; + + export type DateExpressionOperatorReturningNumber = + Expression.DateDiff | + Expression.DayOfMonth | + Expression.DayOfWeek | + Expression.DayOfYear | + Expression.IsoDayOfWeek | + Expression.IsoWeek | + Expression.IsoWeekYear | + Expression.Millisecond | + Expression.Second | + Expression.Minute | + Expression.Hour | + Expression.Month | + Expression.Year; + + export type DateExpressionOperatorReturningDate = + Expression.DateAdd | + Expression.DateFromParts | + Expression.DateFromString | + Expression.DateSubtract | + Expression.DateTrunc | + Expression.ToDate; + + export type DateExpressionOperatorReturningString = + Expression.DateToString; + +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/helpers.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/helpers.d.ts new file mode 100644 index 000000000..91e2ea275 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/helpers.d.ts @@ -0,0 +1,32 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + /** + * Mongoose uses this function to get the current time when setting + * [timestamps](/docs/guide.html#timestamps). You may stub out this function + * using a tool like [Sinon](https://www.npmjs.com/package/sinon) for testing. + */ + function now(): NativeDate; + + /** + * Tells `sanitizeFilter()` to skip the given object when filtering out potential query selector injection attacks. + * Use this method when you have a known query selector that you want to use. + */ + function trusted(obj: T): T; + + /** + * Returns true if the given value is a Mongoose ObjectId (using `instanceof`) or if the + * given value is a 24 character hex string, which is the most commonly used string representation + * of an ObjectId. + */ + function isObjectIdOrHexString(v: mongodb.ObjectId): true; + function isObjectIdOrHexString(v: mongodb.ObjectId | string): boolean; + function isObjectIdOrHexString(v: any): false; + + /** + * Returns true if Mongoose can cast the given value to an ObjectId, or + * false otherwise. + */ + function isValidObjectId(v: mongodb.ObjectId | Types.ObjectId): true; + function isValidObjectId(v: any): boolean; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/index.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/index.d.ts new file mode 100644 index 000000000..bbaa4f669 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/index.d.ts @@ -0,0 +1,703 @@ +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// +/// + +declare class NativeDate extends global.Date { } + +declare module 'mongoose' { + import Kareem = require('kareem'); + import events = require('events'); + import mongodb = require('mongodb'); + import mongoose = require('mongoose'); + + export type Mongoose = typeof mongoose; + + /** + * Mongoose constructor. The exports object of the `mongoose` module is an instance of this + * class. Most apps will only use this one instance. + */ + export const Mongoose: new (options?: MongooseOptions | null) => Mongoose; + + export let Promise: any; + + /** + * Can be extended to explicitly type specific models. + */ + export interface Models { + [modelName: string]: Model + } + + /** An array containing all models associated with this Mongoose instance. */ + export const models: Models; + + /** + * Removes the model named `name` from the default connection, if it exists. + * You can use this function to clean up any models you created in your tests to + * prevent OverwriteModelErrors. + */ + export function deleteModel(name: string | RegExp): Mongoose; + + /** + * Sanitizes query filters against query selector injection attacks by wrapping + * any nested objects that have a property whose name starts with `$` in a `$eq`. + */ + export function sanitizeFilter(filter: FilterQuery): FilterQuery; + + /** Gets mongoose options */ + export function get(key: K): MongooseOptions[K]; + + export function omitUndefined>(val: T): T; + + /* ! ignore */ + export type CompileModelOptions = { + overwriteModels?: boolean, + connection?: Connection + }; + + export function model( + name: string, + schema?: TSchema, + collection?: string, + options?: CompileModelOptions + ): Model< + InferSchemaType, + ObtainSchemaGeneric, + ObtainSchemaGeneric, + ObtainSchemaGeneric, + HydratedDocument< + InferSchemaType, + ObtainSchemaGeneric & ObtainSchemaGeneric, + ObtainSchemaGeneric + >, + TSchema + > & ObtainSchemaGeneric; + + export function model(name: string, schema?: Schema | Schema, collection?: string, options?: CompileModelOptions): Model; + + export function model( + name: string, + schema?: Schema, + collection?: string, + options?: CompileModelOptions + ): U; + + /** Returns an array of model names created on this instance of Mongoose. */ + export function modelNames(): Array; + + /** + * Overwrites the current driver used by this Mongoose instance. A driver is a + * Mongoose-specific interface that defines functions like `find()`. + */ + export function setDriver(driver: any): Mongoose; + + /** The node-mongodb-native driver Mongoose uses. */ + export { mongodb as mongo }; + + /** Declares a global plugin executed on all Schemas. */ + export function plugin(fn: (schema: Schema, opts?: any) => void, opts?: any): Mongoose; + + /** Getter/setter around function for pluralizing collection names. */ + export function pluralize(fn?: ((str: string) => string) | null): ((str: string) => string) | null; + + /** Sets mongoose options */ + export function set(key: K, value: MongooseOptions[K]): Mongoose; + export function set(options: { [K in keyof MongooseOptions]: MongooseOptions[K] }): Mongoose; + + /** The Mongoose version */ + export const version: string; + + export type AnyKeys = { [P in keyof T]?: T[P] | any }; + export interface AnyObject { + [k: string]: any + } + + export type Require_id = T extends { _id?: infer U } + ? IfAny> + : T & { _id: Types.ObjectId }; + + /** Helper type for getting the hydrated document type from the raw document type. The hydrated document type is what `new MyModel()` returns. */ + export type HydratedDocument< + DocType, + TOverrides = {}, + TQueryHelpers = {} + > = IfAny< + DocType, + any, + TOverrides extends Record ? + Document & Require_id : + IfAny< + TOverrides, + Document & Require_id, + Document & MergeType< + Require_id, + TOverrides + > + > + >; + export type HydratedSingleSubdocument = Types.Subdocument, DocType> & Require_id & TOverrides; + export type HydratedArraySubdocument = Types.ArraySubdocument, DocType> & Require_id & TOverrides; + + export type HydratedDocumentFromSchema = HydratedDocument< + InferSchemaType, + ObtainSchemaGeneric, + ObtainSchemaGeneric + >; + + export interface TagSet { + [k: string]: string; + } + + export interface ToObjectOptions> { + /** apply all getters (path and virtual getters) */ + getters?: boolean; + /** apply virtual getters (can override getters option) */ + virtuals?: boolean | string[]; + /** if `options.virtuals = true`, you can set `options.aliases = false` to skip applying aliases. This option is a no-op if `options.virtuals = false`. */ + aliases?: boolean; + /** remove empty objects (defaults to true) */ + minimize?: boolean; + /** if set, mongoose will call this function to allow you to transform the returned object */ + transform?: boolean | (( + doc: THydratedDocumentType, + ret: Record, + options: ToObjectOptions + ) => any); + /** if true, replace any conventionally populated paths with the original id in the output. Has no affect on virtual populated paths. */ + depopulate?: boolean; + /** if false, exclude the version key (`__v` by default) from the output */ + versionKey?: boolean; + /** if true, convert Maps to POJOs. Useful if you want to `JSON.stringify()` the result of `toObject()`. */ + flattenMaps?: boolean; + /** if true, convert any ObjectIds in the result to 24 character hex strings. */ + flattenObjectIds?: boolean; + /** If true, omits fields that are excluded in this document's projection. Unless you specified a projection, this will omit any field that has `select: false` in the schema. */ + useProjection?: boolean; + } + + export type DiscriminatorModel = T extends Model + ? + M extends Model + ? Model & T, MQueryHelpers | TQueryHelpers, MInstanceMethods | TInstanceMethods, MVirtuals | TVirtuals> + : M + : M; + + export type DiscriminatorSchema = + DisSchema extends Schema + ? Schema, DiscriminatorModel, DisSchemaInstanceMethods | TInstanceMethods, DisSchemaQueryhelpers | TQueryHelpers, DisSchemaVirtuals | TVirtuals, DisSchemaStatics & TStaticMethods> + : Schema; + + type QueryResultType = T extends Query ? ResultType : never; + + type PluginFunction< + DocType, + M, + TInstanceMethods, + TQueryHelpers, + TVirtuals, + TStaticMethods> = (schema: Schema, opts?: any) => void; + + export class Schema< + RawDocType = any, + TModelType = Model, + TInstanceMethods = {}, + TQueryHelpers = {}, + TVirtuals = {}, + TStaticMethods = {}, + TSchemaOptions = DefaultSchemaOptions, + DocType extends ApplySchemaOptions< + ObtainDocumentType>, + ResolveSchemaOptions + > = ApplySchemaOptions< + ObtainDocumentType>, + ResolveSchemaOptions + >, + THydratedDocumentType = HydratedDocument, TVirtuals & TInstanceMethods> + > + extends events.EventEmitter { + /** + * Create a new schema + */ + constructor(definition?: SchemaDefinition, RawDocType> | DocType, options?: SchemaOptions, TInstanceMethods, TQueryHelpers, TStaticMethods, TVirtuals, THydratedDocumentType> | ResolveSchemaOptions); + + /** Adds key path / schema type pairs to this schema. */ + add(obj: SchemaDefinition> | Schema, prefix?: string): this; + + /** + * Add an alias for `path`. This means getting or setting the `alias` + * is equivalent to getting or setting the `path`. + */ + alias(path: string, alias: string | string[]): this; + + /** + * Array of child schemas (from document arrays and single nested subdocs) + * and their corresponding compiled models. Each element of the array is + * an object with 2 properties: `schema` and `model`. + */ + childSchemas: { schema: Schema, model: any }[]; + + /** Removes all indexes on this schema */ + clearIndexes(): this; + + /** Returns a copy of this schema */ + clone(): T; + + discriminator(name: string | number, schema: DisSchema): this; + + /** Returns a new schema that has the picked `paths` from this schema. */ + pick(paths: string[], options?: SchemaOptions): T; + + /** Object containing discriminators defined on this schema */ + discriminators?: { [name: string]: Schema }; + + /** Iterates the schemas paths similar to Array#forEach. */ + eachPath(fn: (path: string, type: SchemaType) => void): this; + + /** Defines an index (most likely compound) for this schema. */ + index(fields: IndexDefinition, options?: IndexOptions): this; + + /** + * Define a search index for this schema. + * + * @remarks Search indexes are only supported when used against a 7.0+ Mongo Atlas cluster. + */ + searchIndex(description: SearchIndexDescription): this; + + /** + * Returns a list of indexes that this schema declares, via `schema.index()` + * or by `index: true` in a path's options. + */ + indexes(): Array<[IndexDefinition, IndexOptions]>; + + /** Gets a schema option. */ + get(key: K): SchemaOptions[K]; + + /** + * Loads an ES6 class into a schema. Maps [setters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set) + [getters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get), [static methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/static), + * and [instance methods](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Class_body_and_method_definitions) + * to schema [virtuals](http://mongoosejs.com/docs/guide.html#virtuals), + * [statics](http://mongoosejs.com/docs/guide.html#statics), and + * [methods](http://mongoosejs.com/docs/guide.html#methods). + */ + loadClass(model: Function, onlyVirtuals?: boolean): this; + + /** Adds an instance method to documents constructed from Models compiled from this schema. */ + method(name: string, fn: (this: Context, ...args: any[]) => any, opts?: any): this; + method(obj: Partial): this; + + /** Object of currently defined methods on this schema. */ + methods: AddThisParameter & AnyObject; + + /** The original object passed to the schema constructor */ + obj: SchemaDefinition, RawDocType>; + + /** Returns a new schema that has the `paths` from the original schema, minus the omitted ones. */ + omit(paths: string[], options?: SchemaOptions): T; + + /** Gets/sets schema paths. */ + path>(path: string): ResultType; + path(path: pathGeneric): SchemaType; + path(path: string, constructor: any): this; + + /** Lists all paths and their type in the schema. */ + paths: { + [key: string]: SchemaType; + }; + + /** Returns the pathType of `path` for this schema. */ + pathType(path: string): string; + + /** Registers a plugin for this schema. */ + plugin, POptions extends Parameters[1] = Parameters[1]>(fn: PFunc, opts?: POptions): this; + + /** Defines a post hook for the model. */ + + // PostMiddlewareFunction + // with errorHandler set to true + post>(method: MongooseQueryMiddleware | MongooseQueryMiddleware[] | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption): this; + post(method: MongooseDocumentMiddleware | MongooseDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption): this; + post>(method: 'aggregate' | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption>): this; + post(method: 'insertMany' | RegExp, options: SchemaPostOptions & { errorHandler: true }, fn: ErrorHandlingMiddlewareWithOption): this; + + // this = never since it never happens + post(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: false }, fn: PostMiddlewareFunction): this; + post(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions & { document: boolean, query: false }, fn: PostMiddlewareFunction>): this; + post(method: MongooseDistinctDocumentMiddleware | MongooseDistinctDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: PostMiddlewareFunction): this; + // this = Document + post(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], fn: PostMiddlewareFunction): this; + post(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions & SchemaPostOptions, fn: PostMiddlewareFunction): this; + post(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: false }, fn: PostMiddlewareFunction): this; + // this = Query + post>(method: MongooseRawResultQueryMiddleware|MongooseRawResultQueryMiddleware[], fn: PostMiddlewareFunction | ModifyResult>>): this; + post>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: PostMiddlewareFunction>): this; + post>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions, fn: PostMiddlewareFunction>): this; + post>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: PostMiddlewareFunction>): this; + // this = Union of Document and Query, could be called with any of them + post>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: true }, fn: PostMiddlewareFunction>): this; + post>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, fn: PostMiddlewareFunction>): this; + + // ErrorHandlingMiddlewareFunction + // this = never since it never happens + post(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions & { document: boolean, query: false }, fn: ErrorHandlingMiddlewareFunction): this; + post(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions & { document: false, query: boolean }, fn: ErrorHandlingMiddlewareFunction): this; + post(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: false }, fn: ErrorHandlingMiddlewareFunction): this; + // this = Document + post(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], fn: ErrorHandlingMiddlewareFunction): this; + post(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction): this; + post(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: false }, fn: ErrorHandlingMiddlewareFunction): this; + // this = Query + post>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: ErrorHandlingMiddlewareFunction): this; + post>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction): this; + post>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: ErrorHandlingMiddlewareFunction): this; + // this = Union of Document and Query, could be called with any of them + post>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: true }, fn: ErrorHandlingMiddlewareFunction): this; + post>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, fn: ErrorHandlingMiddlewareFunction): this; + + // method aggregate and insertMany with PostMiddlewareFunction + post>(method: 'aggregate' | RegExp, fn: PostMiddlewareFunction>>): this; + post>(method: 'aggregate' | RegExp, options: SchemaPostOptions, fn: PostMiddlewareFunction>>): this; + post(method: 'insertMany' | RegExp, fn: PostMiddlewareFunction): this; + post(method: 'insertMany' | RegExp, options: SchemaPostOptions, fn: PostMiddlewareFunction): this; + + // method aggregate and insertMany with ErrorHandlingMiddlewareFunction + post>(method: 'aggregate' | RegExp, fn: ErrorHandlingMiddlewareFunction>): this; + post>(method: 'aggregate' | RegExp, options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction>): this; + post(method: 'bulkWrite' | 'createCollection' | 'insertMany' | RegExp, fn: ErrorHandlingMiddlewareFunction): this; + post(method: 'bulkWrite' | 'createCollection' | 'insertMany' | RegExp, options: SchemaPostOptions, fn: ErrorHandlingMiddlewareFunction): this; + + /** Defines a pre hook for the model. */ + // this = never since it never happens + pre(method: 'save', options: SchemaPreOptions & { document: false, query: boolean }, fn: PreSaveMiddlewareFunction): this; + pre(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: false, query: false }, fn: PreMiddlewareFunction): this; + pre(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPreOptions & { document: boolean, query: false }, fn: PreMiddlewareFunction): this; + pre(method: MongooseDistinctDocumentMiddleware | MongooseDistinctDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: false, query: boolean }, fn: PreMiddlewareFunction): this; + // this = Union of Document and Query, could be called with any of them + pre>( + method: MongooseQueryAndDocumentMiddleware | MongooseQueryAndDocumentMiddleware[] | RegExp, + options: SchemaPreOptions & { document: true, query: true }, + fn: PreMiddlewareFunction + ): this; + // this = Document + pre(method: 'save', fn: PreSaveMiddlewareFunction): this; + pre(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], fn: PreMiddlewareFunction): this; + pre(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPreOptions, fn: PreMiddlewareFunction): this; + pre( + method: MongooseQueryAndDocumentMiddleware | MongooseQueryAndDocumentMiddleware[] | RegExp, + options: SchemaPreOptions & { document: true }, + fn: PreMiddlewareFunction + ): this; + pre(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: true, query: false }, fn: PreMiddlewareFunction): this; + // this = Query + pre>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: PreMiddlewareFunction): this; + pre>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPreOptions, fn: PreMiddlewareFunction): this; + pre>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: false, query: true }, fn: PreMiddlewareFunction): this; + // this = Union of Document and Query, could be called with any of them + pre>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPreOptions & { document: true, query: true }, fn: PreMiddlewareFunction): this; + pre>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, fn: PreMiddlewareFunction): this; + // method aggregate + pre>(method: 'aggregate' | RegExp, fn: PreMiddlewareFunction): this; + /* method insertMany */ + pre( + method: 'insertMany' | RegExp, + fn: ( + this: T, + next: (err?: CallbackError) => void, + docs: any | Array, + options?: InsertManyOptions & { lean?: boolean } + ) => void | Promise + ): this; + /* method bulkWrite */ + pre( + method: 'bulkWrite' | RegExp, + fn: ( + this: T, + next: (err?: CallbackError) => void, + ops: Array>, + options?: mongodb.BulkWriteOptions & MongooseBulkWriteOptions + ) => void | Promise + ): this; + /* method createCollection */ + pre( + method: 'createCollection' | RegExp, + fn: ( + this: T, + next: (err?: CallbackError) => void, + options?: mongodb.CreateCollectionOptions & Pick + ) => void | Promise + ): this; + + /** Object of currently defined query helpers on this schema. */ + query: TQueryHelpers; + + /** Adds a method call to the queue. */ + queue(name: string, args: any[]): this; + + /** Removes the given `path` (or [`paths`]). */ + remove(paths: string | Array): this; + + /** Removes index by name or index spec */ + remove(index: string | AnyObject): this; + + /** Returns an Array of path strings that are required by this schema. */ + requiredPaths(invalidate?: boolean): string[]; + + /** Sets a schema option. */ + set(key: K, value: SchemaOptions[K], _tags?: any): this; + + /** Adds static "class" methods to Models compiled from this schema. */ + static(name: K, fn: TStaticMethods[K]): this; + static(obj: { [F in keyof TStaticMethods]: TStaticMethods[F] } & { [name: string]: (this: TModelType, ...args: any[]) => any }): this; + static(name: string, fn: (this: TModelType, ...args: any[]) => any): this; + + /** Object of currently defined statics on this schema. */ + statics: { [F in keyof TStaticMethods]: TStaticMethods[F] } & + { [name: string]: (this: TModelType, ...args: any[]) => unknown }; + + /** Creates a virtual type with the given name. */ + virtual>( + name: keyof TVirtuals | string, + options?: VirtualTypeOptions + ): VirtualType; + + /** Object of currently defined virtuals on this schema */ + virtuals: TVirtuals; + + /** Returns the virtual type with the given `name`. */ + virtualpath(name: string): VirtualType | null; + + static ObjectId: typeof Schema.Types.ObjectId; + } + + export type NumberSchemaDefinition = typeof Number | 'number' | 'Number' | typeof Schema.Types.Number; + export type StringSchemaDefinition = typeof String | 'string' | 'String' | typeof Schema.Types.String; + export type BooleanSchemaDefinition = typeof Boolean | 'boolean' | 'Boolean' | typeof Schema.Types.Boolean; + export type DateSchemaDefinition = DateConstructor | 'date' | 'Date' | typeof Schema.Types.Date; + export type ObjectIdSchemaDefinition = 'ObjectId' | 'ObjectID' | typeof Schema.Types.ObjectId; + + export type SchemaDefinitionWithBuiltInClass = T extends number + ? NumberSchemaDefinition + : T extends string + ? StringSchemaDefinition + : T extends boolean + ? BooleanSchemaDefinition + : T extends NativeDate + ? DateSchemaDefinition + : (Function | string); + + export type SchemaDefinitionProperty = SchemaDefinitionWithBuiltInClass | + SchemaTypeOptions | + typeof SchemaType | + Schema | + Schema[] | + SchemaTypeOptions, EnforcedDocType>[] | + Function[] | + SchemaDefinition | + SchemaDefinition, EnforcedDocType>[] | + typeof Schema.Types.Mixed | + MixedSchemaTypeOptions; + + export type SchemaDefinition = T extends undefined + ? { [path: string]: SchemaDefinitionProperty; } + : { [path in keyof T]?: SchemaDefinitionProperty; }; + + export type AnyArray = T[] | ReadonlyArray; + export type ExtractMongooseArray = T extends Types.Array ? AnyArray> : T; + + export interface MixedSchemaTypeOptions extends SchemaTypeOptions { + type: typeof Schema.Types.Mixed; + } + + export type RefType = + | number + | string + | Buffer + | undefined + | Types.ObjectId + | Types.Buffer + | typeof Schema.Types.Number + | typeof Schema.Types.String + | typeof Schema.Types.Buffer + | typeof Schema.Types.ObjectId; + + + export type InferId = T extends { _id?: any } ? T['_id'] : Types.ObjectId; + + export interface VirtualTypeOptions { + /** If `ref` is not nullish, this becomes a populated virtual. */ + ref?: string | Function; + + /** The local field to populate on if this is a populated virtual. */ + localField?: string | ((this: HydratedDocType, doc: HydratedDocType) => string); + + /** The foreign field to populate on if this is a populated virtual. */ + foreignField?: string | ((this: HydratedDocType, doc: HydratedDocType) => string); + + /** + * By default, a populated virtual is an array. If you set `justOne`, + * the populated virtual will be a single doc or `null`. + */ + justOne?: boolean; + + /** If you set this to `true`, Mongoose will call any custom getters you defined on this virtual. */ + getters?: boolean; + + /** + * If you set this to `true`, `populate()` will set this virtual to the number of populated + * documents, as opposed to the documents themselves, using `Query#countDocuments()`. + */ + count?: boolean; + + /** Add an extra match condition to `populate()`. */ + match?: FilterQuery | ((doc: Record, virtual?: this) => Record | null); + + /** Add a default `limit` to the `populate()` query. */ + limit?: number; + + /** Add a default `skip` to the `populate()` query. */ + skip?: number; + + /** + * For legacy reasons, `limit` with `populate()` may give incorrect results because it only + * executes a single query for every document being populated. If you set `perDocumentLimit`, + * Mongoose will ensure correct `limit` per document by executing a separate query for each + * document to `populate()`. For example, `.find().populate({ path: 'test', perDocumentLimit: 2 })` + * will execute 2 additional queries if `.find()` returns 2 documents. + */ + perDocumentLimit?: number; + + /** Additional options like `limit` and `lean`. */ + options?: QueryOptions & { match?: AnyObject }; + + /** Additional options for plugins */ + [extra: string]: any; + } + + export class VirtualType { + /** Applies getters to `value`. */ + applyGetters(value: any, doc: Document): any; + + /** Applies setters to `value`. */ + applySetters(value: any, doc: Document): any; + + /** Adds a custom getter to this virtual. */ + get(fn: (this: T, value: any, virtualType: VirtualType, doc: T) => any): this; + + /** Adds a custom setter to this virtual. */ + set(fn: (this: T, value: any, virtualType: VirtualType, doc: T) => void): this; + } + + export type ReturnsNewDoc = { new: true } | { returnOriginal: false } | { returnDocument: 'after' }; + + export type ProjectionElementType = number | string; + export type ProjectionType = { [P in keyof T]?: ProjectionElementType } | AnyObject | string; + + export type SortValues = SortOrder; + + export type SortOrder = -1 | 1 | 'asc' | 'ascending' | 'desc' | 'descending'; + + type _UpdateQuery = { + /** @see https://www.mongodb.com/docs/manual/reference/operator/update-field/ */ + $currentDate?: AnyKeys & AdditionalProperties; + $inc?: AnyKeys & AdditionalProperties; + $min?: AnyKeys & AdditionalProperties; + $max?: AnyKeys & AdditionalProperties; + $mul?: AnyKeys & AdditionalProperties; + $rename?: Record; + $set?: AnyKeys & AdditionalProperties; + $setOnInsert?: AnyKeys & AdditionalProperties; + $unset?: AnyKeys & AdditionalProperties; + + /** @see https://www.mongodb.com/docs/manual/reference/operator/update-array/ */ + $addToSet?: AnyKeys & AdditionalProperties; + $pop?: AnyKeys & AdditionalProperties; + $pull?: AnyKeys & AdditionalProperties; + $push?: AnyKeys & AdditionalProperties; + $pullAll?: AnyKeys & AdditionalProperties; + + /** @see https://www.mongodb.com/docs/manual/reference/operator/update-bitwise/ */ + $bit?: AnyKeys; + }; + + export type UpdateWithAggregationPipeline = UpdateAggregationStage[]; + export type UpdateAggregationStage = { $addFields: any } | + { $set: any } | + { $project: any } | + { $unset: any } | + { $replaceRoot: any } | + { $replaceWith: any }; + + /** + * Update query command to perform on the document + * @example + * ```js + * { age: 30 } + * ``` + */ + export type UpdateQuery = AnyKeys & _UpdateQuery & AnyObject; + + /** + * A more strict form of UpdateQuery that enforces updating only + * known top-level properties. + * @example + * ```ts + * function updateUser(_id: mongoose.Types.ObjectId, update: UpdateQueryKnownOnly) { + * return User.updateOne({ _id }, update); + * } + * ``` + */ + export type UpdateQueryKnownOnly = _UpdateQuery; + + export type FlattenMaps = { + [K in keyof T]: FlattenProperty; + }; + + /** + * Separate type is needed for properties of union type (for example, Types.DocumentArray | undefined) to apply conditional check to each member of it + * https://www.typescriptlang.org/docs/handbook/2/conditional-types.html#distributive-conditional-types + */ + type FlattenProperty = T extends Map + ? Record : T extends TreatAsPrimitives + ? T : T extends Types.DocumentArray + ? Types.DocumentArray> : FlattenMaps; + + export type actualPrimitives = string | boolean | number | bigint | symbol | null | undefined; + export type TreatAsPrimitives = actualPrimitives | NativeDate | RegExp | symbol | Error | BigInt | Types.ObjectId | Buffer | Function; + + export type SchemaDefinitionType = T extends Document ? Omit> : T; + + /** + * Helper to choose the best option between two type helpers + */ + export type _pickObject = T1 extends false ? T2 extends false ? Fallback : T2 : T1; + + /* for ts-mongoose */ + export class mquery { } + + export function overwriteMiddlewareResult(val: any): Kareem.OverwriteMiddlewareResult; + + export function skipMiddlewareFunction(val: any): Kareem.SkipWrappedFunction; + + export default mongoose; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/indexes.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/indexes.d.ts new file mode 100644 index 000000000..f0891f081 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/indexes.d.ts @@ -0,0 +1,91 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + /** + * Makes the indexes in MongoDB match the indexes defined in every model's + * schema. This function will drop any indexes that are not defined in + * the model's schema except the `_id` index, and build any indexes that + * are in your schema but not in MongoDB. + */ + function syncIndexes(options?: SyncIndexesOptions): Promise; + + interface IndexManager { + /** + * Similar to `ensureIndexes()`, except for it uses the [`createIndex`](https://mongodb.github.io/node-mongodb-native/4.9/classes/Collection.html#createIndex) + * function. + */ + createIndexes(options?: mongodb.CreateIndexesOptions): Promise; + + /** + * Does a dry-run of Model.syncIndexes(), meaning that + * the result of this function would be the result of + * Model.syncIndexes(). + */ + diffIndexes(options?: Record): Promise + + /** + * Sends `createIndex` commands to mongo for each index declared in the schema. + * The `createIndex` commands are sent in series. + */ + ensureIndexes(options?: mongodb.CreateIndexesOptions): Promise; + + /** + * Lists the indexes currently defined in MongoDB. This may or may not be + * the same as the indexes defined in your schema depending on whether you + * use the [`autoIndex` option](/docs/guide.html#autoIndex) and if you + * build indexes manually. + */ + listIndexes(): Promise>; + + /** + * Makes the indexes in MongoDB match the indexes defined in this model's + * schema. This function will drop any indexes that are not defined in + * the model's schema except the `_id` index, and build any indexes that + * are in your schema but not in MongoDB. + */ + syncIndexes(options?: SyncIndexesOptions): Promise>; + } + + interface IndexesDiff { + /** Indexes that would be created in mongodb. */ + toCreate: Array + /** Indexes that would be dropped in mongodb. */ + toDrop: Array + } + + type IndexDirection = 1 | -1 | '2d' | '2dsphere' | 'geoHaystack' | 'hashed' | 'text' | 'ascending' | 'asc' | 'descending' | 'desc'; + type IndexDefinition = Record; + + interface SyncIndexesOptions extends mongodb.CreateIndexesOptions { + continueOnError?: boolean + } + type ConnectionSyncIndexesResult = Record; + type OneCollectionSyncIndexesResult = Array & mongodb.MongoServerError; + + interface IndexOptions extends mongodb.CreateIndexesOptions { + /** + * `expires` utilizes the `ms` module from [guille](https://github.com/guille/) allowing us to use a friendlier syntax: + * + * @example + * ```js + * const schema = new Schema({ prop1: Date }); + * + * // expire in 24 hours + * schema.index({ prop1: 1 }, { expires: 60*60*24 }) + * + * // expire in 24 hours + * schema.index({ prop1: 1 }, { expires: '24h' }) + * + * // expire in 1.5 hours + * schema.index({ prop1: 1 }, { expires: '1.5h' }) + * + * // expire in 7 days + * schema.index({ prop1: 1 }, { expires: '7d' }) + * ``` + */ + expires?: number | string; + weights?: Record; + } + + type SearchIndexDescription = mongodb.SearchIndexDescription; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/inferrawdoctype.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/inferrawdoctype.d.ts new file mode 100644 index 000000000..95a912ff2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/inferrawdoctype.d.ts @@ -0,0 +1,116 @@ +import { + IsSchemaTypeFromBuiltinClass, + RequiredPaths, + OptionalPaths, + PathWithTypePropertyBaseType, + PathEnumOrString +} from './inferschematype'; + +declare module 'mongoose' { + export type InferRawDocType< + DocDefinition, + TSchemaOptions extends Record = DefaultSchemaOptions + > = { + [ + K in keyof (RequiredPaths & + OptionalPaths) + ]: ObtainRawDocumentPathType; + }; + + /** + * @summary Obtains schema Path type. + * @description Obtains Path type by separating path type from other options and calling {@link ResolvePathType} + * @param {PathValueType} PathValueType Document definition path type. + * @param {TypeKey} TypeKey A generic refers to document definition. + */ + type ObtainRawDocumentPathType< + PathValueType, + TypeKey extends string = DefaultTypeKey + > = ResolveRawPathType< + PathValueType extends PathWithTypePropertyBaseType ? PathValueType[TypeKey] : PathValueType, + PathValueType extends PathWithTypePropertyBaseType ? Omit : {}, + TypeKey + >; + + /** + * Same as inferSchemaType, except: + * + * 1. Replace `Types.DocumentArray` and `Types.Array` with vanilla `Array` + * 2. Replace `ObtainDocumentPathType` with `ObtainRawDocumentPathType` + * 3. Replace `ResolvePathType` with `ResolveRawPathType` + * + * @summary Resolve path type by returning the corresponding type. + * @param {PathValueType} PathValueType Document definition path type. + * @param {Options} Options Document definition path options except path type. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + * @returns Number, "Number" or "number" will be resolved to number type. + */ + type ResolveRawPathType = {}, TypeKey extends string = DefaultSchemaOptions['typeKey']> = + PathValueType extends Schema ? + InferSchemaType : + PathValueType extends (infer Item)[] ? + IfEquals> : + Item extends Record ? + Item[TypeKey] extends Function | String ? + // If Item has a type key that's a string or a callable, it must be a scalar, + // so we can directly obtain its path type. + ObtainRawDocumentPathType[] : + // If the type key isn't callable, then this is an array of objects, in which case + // we need to call ObtainDocumentType to correctly infer its type. + Array> : + IsSchemaTypeFromBuiltinClass extends true ? + ObtainRawDocumentPathType[] : + IsItRecordAndNotAny extends true ? + Item extends Record ? + ObtainRawDocumentPathType[] : + Array> : + ObtainRawDocumentPathType[] + >: + PathValueType extends ReadonlyArray ? + IfEquals> : + Item extends Record ? + Item[TypeKey] extends Function | String ? + ObtainRawDocumentPathType[] : + ObtainDocumentType[]: + IsSchemaTypeFromBuiltinClass extends true ? + ObtainRawDocumentPathType[] : + IsItRecordAndNotAny extends true ? + Item extends Record ? + ObtainRawDocumentPathType[] : + Array> : + ObtainRawDocumentPathType[] + >: + PathValueType extends StringSchemaDefinition ? PathEnumOrString : + IfEquals extends true ? PathEnumOrString : + IfEquals extends true ? PathEnumOrString : + PathValueType extends NumberSchemaDefinition ? Options['enum'] extends ReadonlyArray ? Options['enum'][number] : number : + IfEquals extends true ? number : + PathValueType extends DateSchemaDefinition ? Date : + IfEquals extends true ? Date : + PathValueType extends typeof Buffer | 'buffer' | 'Buffer' | typeof Schema.Types.Buffer ? Buffer : + PathValueType extends BooleanSchemaDefinition ? boolean : + IfEquals extends true ? boolean : + PathValueType extends ObjectIdSchemaDefinition ? Types.ObjectId : + IfEquals extends true ? Types.ObjectId : + IfEquals extends true ? Types.ObjectId : + PathValueType extends 'decimal128' | 'Decimal128' | typeof Schema.Types.Decimal128 ? Types.Decimal128 : + IfEquals extends true ? Types.Decimal128 : + IfEquals extends true ? Types.Decimal128 : + IfEquals extends true ? bigint : + IfEquals extends true ? bigint : + PathValueType extends 'bigint' | 'BigInt' | typeof Schema.Types.BigInt | typeof BigInt ? bigint : + PathValueType extends 'uuid' | 'UUID' | typeof Schema.Types.UUID ? Buffer : + IfEquals extends true ? Buffer : + PathValueType extends MapConstructor | 'Map' ? Map> : + IfEquals extends true ? Map> : + PathValueType extends ArrayConstructor ? any[] : + PathValueType extends typeof Schema.Types.Mixed ? any: + IfEquals extends true ? any: + IfEquals extends true ? any: + PathValueType extends typeof SchemaType ? PathValueType['prototype'] : + PathValueType extends Record ? ObtainDocumentType : + unknown; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/inferschematype.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/inferschematype.d.ts new file mode 100644 index 000000000..ff1e92b78 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/inferschematype.d.ts @@ -0,0 +1,298 @@ +import { + Schema, + InferSchemaType, + SchemaType, + SchemaTypeOptions, + TypeKeyBaseType, + Types, + NumberSchemaDefinition, + StringSchemaDefinition, + BooleanSchemaDefinition, + DateSchemaDefinition, + ObtainDocumentType, + DefaultTypeKey, + ObjectIdSchemaDefinition, + IfEquals, + DefaultSchemaOptions, + IsItRecordAndNotAny +} from 'mongoose'; + +declare module 'mongoose' { + /** + * @summary Obtains document schema type. + * @description Obtains document schema type from document Definition OR returns enforced schema type if it's provided. + * @param {DocDefinition} DocDefinition A generic equals to the type of document definition "provided in as first parameter in Schema constructor". + * @param {EnforcedDocType} EnforcedDocType A generic type enforced by user "provided before schema constructor". + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + */ + type ObtainDocumentType< + DocDefinition, + EnforcedDocType = any, + TSchemaOptions extends Record = DefaultSchemaOptions + > = IsItRecordAndNotAny extends true ? + EnforcedDocType : + { + [ + K in keyof (RequiredPaths & + OptionalPaths) + ]: IsPathRequired extends true ? + ObtainDocumentPathType : + ObtainDocumentPathType | null; + }; + + /** + * @summary Obtains document schema type from Schema instance. + * @param {Schema} TSchema `typeof` a schema instance. + * @example + * const userSchema = new Schema({userName:String}); + * type UserType = InferSchemaType; + * // result + * type UserType = {userName?: string} + */ + export type InferSchemaType = IfAny>; + + /** + * @summary Obtains schema Generic type by using generic alias. + * @param {TSchema} TSchema A generic of schema type instance. + * @param {alias} alias Targeted generic alias. + */ + type ObtainSchemaGeneric = + TSchema extends Schema + ? { + EnforcedDocType: EnforcedDocType; + M: M; + TInstanceMethods: TInstanceMethods; + TQueryHelpers: TQueryHelpers; + TVirtuals: TVirtuals; + TStaticMethods: TStaticMethods; + TSchemaOptions: TSchemaOptions; + DocType: DocType; + }[alias] + : unknown; + + type ResolveSchemaOptions = MergeType; + + type ApplySchemaOptions = ResolveTimestamps; + + type ResolveTimestamps = O extends { timestamps: true } + // For some reason, TypeScript sets all the document properties to unknown + // if we use methods, statics, or virtuals. So avoid inferring timestamps + // if any of these are set for now. See gh-12807 + ? O extends { methods: any } | { statics: any } | { virtuals: any } + ? T + : { createdAt: NativeDate; updatedAt: NativeDate; } & T + : T; +} + +type IsPathDefaultUndefined = PathType extends { default: undefined } ? + true : + PathType extends { default: (...args: any[]) => undefined } ? + true : + false; + +/** + * @summary Checks if a document path is required or optional. + * @param {P} P Document path. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + */ +type IsPathRequired = + P extends { required: true | [true, string | undefined] | { isRequired: true } } | ArrayConstructor | any[] + ? true + : P extends { required: boolean } + ? P extends { required: false } + ? false + : true + : P extends (Record) + ? IsPathDefaultUndefined

extends true + ? false + : true + : P extends (Record) + ? P extends { default: any } + ? IfEquals + : false + : false; + +/** + * @summary Path base type defined by using TypeKey + * @description It helps to check if a path is defined by TypeKey OR not. + * @param {TypeKey} TypeKey A literal string refers to path type property key. + */ +type PathWithTypePropertyBaseType = { [k in TypeKey]: any }; + +/** + * @summary A Utility to obtain schema's required path keys. + * @param {T} T A generic refers to document definition. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + * @returns required paths keys of document definition. + */ +type RequiredPathKeys = { + [K in keyof T]: IsPathRequired extends true ? IfEquals : never; +}[keyof T]; + +/** + * @summary A Utility to obtain schema's required paths. + * @param {T} T A generic refers to document definition. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + * @returns a record contains required paths with the corresponding type. + */ +type RequiredPaths = { + [K in RequiredPathKeys]: T[K]; +}; + +/** + * @summary A Utility to obtain schema's optional path keys. + * @param {T} T A generic refers to document definition. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + * @returns optional paths keys of document definition. + */ +type OptionalPathKeys = { + [K in keyof T]: IsPathRequired extends true ? never : K; +}[keyof T]; + +/** + * @summary A Utility to obtain schema's optional paths. + * @param {T} T A generic refers to document definition. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + * @returns a record contains optional paths with the corresponding type. + */ +type OptionalPaths = { + [K in OptionalPathKeys]?: T[K]; +}; + +/** + * @summary Allows users to optionally choose their own type for a schema field for stronger typing. + */ +type TypeHint = T extends { __typehint: infer U } ? U: never; + + +/** + * @summary Obtains schema Path type. + * @description Obtains Path type by separating path type from other options and calling {@link ResolvePathType} + * @param {PathValueType} PathValueType Document definition path type. + * @param {TypeKey} TypeKey A generic refers to document definition. + */ +type ObtainDocumentPathType = ResolvePathType< +PathValueType extends PathWithTypePropertyBaseType ? PathValueType[TypeKey] : PathValueType, +PathValueType extends PathWithTypePropertyBaseType ? Omit : {}, +TypeKey, +TypeHint +>; + +/** + * @param {T} T A generic refers to string path enums. + * @returns Path enum values type as literal strings or string. + */ +type PathEnumOrString['enum']> = T extends ReadonlyArray ? E : T extends { values: any } ? PathEnumOrString : string; + +type IsSchemaTypeFromBuiltinClass = T extends (typeof String) + ? true + : T extends (typeof Number) + ? true + : T extends (typeof Boolean) + ? true + : T extends (typeof Buffer) + ? true + : T extends (typeof Schema.Types.ObjectId) + ? true + : T extends (typeof Schema.Types.UUID) + ? true + : T extends (typeof Schema.Types.Decimal128) + ? true + : T extends (typeof Schema.Types.String) + ? true + : T extends (typeof Schema.Types.Number) + ? true + : T extends (typeof Schema.Types.Date) + ? true + : T extends (typeof Schema.Types.Boolean) + ? true + : T extends (typeof Schema.Types.Buffer) + ? true + : T extends Types.ObjectId + ? true + : T extends Types.Decimal128 + ? true + : T extends Buffer + ? true + : T extends NativeDate + ? true + : T extends (typeof Schema.Types.Mixed) + ? true + : IfEquals; + +/** + * @summary Resolve path type by returning the corresponding type. + * @param {PathValueType} PathValueType Document definition path type. + * @param {Options} Options Document definition path options except path type. + * @param {TypeKey} TypeKey A generic of literal string type."Refers to the property used for path type definition". + * @returns Number, "Number" or "number" will be resolved to number type. + */ +type ResolvePathType = {}, TypeKey extends string = DefaultSchemaOptions['typeKey'], TypeHint = never> = + IfEquals : + PathValueType extends (infer Item)[] ? + IfEquals> : + Item extends Record ? + Item[TypeKey] extends Function | String ? + // If Item has a type key that's a string or a callable, it must be a scalar, + // so we can directly obtain its path type. + ObtainDocumentPathType[] : + // If the type key isn't callable, then this is an array of objects, in which case + // we need to call ObtainDocumentType to correctly infer its type. + Types.DocumentArray> : + IsSchemaTypeFromBuiltinClass extends true ? + ObtainDocumentPathType[] : + IsItRecordAndNotAny extends true ? + Item extends Record ? + ObtainDocumentPathType[] : + Types.DocumentArray> : + ObtainDocumentPathType[] + >: + PathValueType extends ReadonlyArray ? + IfEquals> : + Item extends Record ? + Item[TypeKey] extends Function | String ? + ObtainDocumentPathType[] : + ObtainDocumentType[]: + IsSchemaTypeFromBuiltinClass extends true ? + ObtainDocumentPathType[] : + IsItRecordAndNotAny extends true ? + Item extends Record ? + ObtainDocumentPathType[] : + Types.DocumentArray> : + ObtainDocumentPathType[] + >: + PathValueType extends StringSchemaDefinition ? PathEnumOrString : + IfEquals extends true ? PathEnumOrString : + IfEquals extends true ? PathEnumOrString : + PathValueType extends NumberSchemaDefinition ? Options['enum'] extends ReadonlyArray ? Options['enum'][number] : number : + IfEquals extends true ? number : + PathValueType extends DateSchemaDefinition ? Date : + IfEquals extends true ? Date : + PathValueType extends typeof Buffer | 'buffer' | 'Buffer' | typeof Schema.Types.Buffer ? Buffer : + PathValueType extends BooleanSchemaDefinition ? boolean : + IfEquals extends true ? boolean : + PathValueType extends ObjectIdSchemaDefinition ? Types.ObjectId : + IfEquals extends true ? Types.ObjectId : + IfEquals extends true ? Types.ObjectId : + PathValueType extends 'decimal128' | 'Decimal128' | typeof Schema.Types.Decimal128 ? Types.Decimal128 : + IfEquals extends true ? Types.Decimal128 : + IfEquals extends true ? Types.Decimal128 : + IfEquals extends true ? bigint : + IfEquals extends true ? bigint : + PathValueType extends 'bigint' | 'BigInt' | typeof Schema.Types.BigInt | typeof BigInt ? bigint : + PathValueType extends 'uuid' | 'UUID' | typeof Schema.Types.UUID ? Buffer : + IfEquals extends true ? Buffer : + PathValueType extends MapConstructor | 'Map' ? Map> : + IfEquals extends true ? Map> : + PathValueType extends ArrayConstructor ? any[] : + PathValueType extends typeof Schema.Types.Mixed ? any: + IfEquals extends true ? any: + IfEquals extends true ? any: + PathValueType extends typeof SchemaType ? PathValueType['prototype'] : + PathValueType extends Record ? ObtainDocumentType : + unknown, + TypeHint>; diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/middlewares.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/middlewares.d.ts new file mode 100644 index 000000000..8d380ed69 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/middlewares.d.ts @@ -0,0 +1,50 @@ +declare module 'mongoose' { + import Kareem = require('kareem'); + + type MongooseQueryAndDocumentMiddleware = 'updateOne' | 'deleteOne'; + + type MongooseDistinctDocumentMiddleware = 'save' | 'init' | 'validate'; + type MongooseDocumentMiddleware = MongooseDistinctDocumentMiddleware | MongooseQueryAndDocumentMiddleware; + + type MongooseRawResultQueryMiddleware = 'findOneAndUpdate' | 'findOneAndReplace' | 'findOneAndDelete'; + type MongooseDistinctQueryMiddleware = 'estimatedDocumentCount' | 'countDocuments' | 'deleteMany' | 'distinct' | 'find' | 'findOne' | 'findOneAndDelete' | 'findOneAndReplace' | 'findOneAndUpdate' | 'replaceOne' | 'updateMany'; + + type MongooseDefaultQueryMiddleware = MongooseDistinctQueryMiddleware | 'updateOne' | 'deleteOne'; + type MongooseQueryMiddleware = MongooseDistinctQueryMiddleware | MongooseQueryAndDocumentMiddleware; + + type MongooseQueryOrDocumentMiddleware = MongooseDistinctQueryMiddleware|MongooseDistinctDocumentMiddleware|MongooseQueryAndDocumentMiddleware; + + type MiddlewareOptions = { + /** + * Enable this Hook for the Document Methods + * @default true + */ + document?: boolean, + /** + * Enable this Hook for the Query Methods + * @default true + */ + query?: boolean, + /** + * Explicitly set this function to be a Error handler instead of based on how many arguments are used + * @default false + */ + errorHandler?: boolean + }; + type SchemaPreOptions = MiddlewareOptions; + type SchemaPostOptions = MiddlewareOptions; + + type PreMiddlewareFunction = ( + this: ThisType, + next: CallbackWithoutResultAndOptionalError, + opts?: Record + ) => void | Promise | Kareem.SkipWrappedFunction; + type PreSaveMiddlewareFunction = ( + this: ThisType, + next: CallbackWithoutResultAndOptionalError, + opts: SaveOptions + ) => void | Promise | Kareem.SkipWrappedFunction; + type PostMiddlewareFunction = (this: ThisType, res: ResType, next: CallbackWithoutResultAndOptionalError) => void | Promise | Kareem.OverwriteMiddlewareResult; + type ErrorHandlingMiddlewareFunction = (this: ThisType, err: NativeError, res: ResType, next: CallbackWithoutResultAndOptionalError) => void; + type ErrorHandlingMiddlewareWithOption = (this: ThisType, err: NativeError, res: ResType | null, next: CallbackWithoutResultAndOptionalError) => void | Promise | Kareem.OverwriteMiddlewareResult; +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/models.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/models.d.ts new file mode 100644 index 000000000..34f938c07 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/models.d.ts @@ -0,0 +1,893 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + export interface DiscriminatorOptions { + value?: string | number | ObjectId; + clone?: boolean; + overwriteModels?: boolean; + mergeHooks?: boolean; + mergePlugins?: boolean; + } + + export interface AcceptsDiscriminator { + /** Adds a discriminator type. */ + discriminator( + name: string | number, + schema: Schema, + value?: string | number | ObjectId | DiscriminatorOptions + ): Model; + discriminator( + name: string | number, + schema: Schema, + value?: string | number | ObjectId | DiscriminatorOptions + ): U; + } + + interface MongooseBulkWriteOptions extends mongodb.BulkWriteOptions { + session?: ClientSession; + skipValidation?: boolean; + throwOnValidationError?: boolean; + strict?: boolean | 'throw'; + /** When false, do not add timestamps to documents. Can be overridden at the operation level. */ + timestamps?: boolean; + } + + interface MongooseBulkSaveOptions extends mongodb.BulkWriteOptions { + timestamps?: boolean; + session?: ClientSession; + } + + /** + * @deprecated use AnyBulkWriteOperation instead + */ + interface MongooseBulkWritePerWriteOptions { + timestamps?: boolean; + strict?: boolean | 'throw'; + session?: ClientSession; + skipValidation?: boolean; + } + + interface HydrateOptions { + setters?: boolean; + hydratedPopulatedDocs?: boolean; + } + + interface InsertManyOptions extends + PopulateOption, + SessionOption { + limit?: number; + // @deprecated, use includeResultMetadata instead + rawResult?: boolean; + includeResultMetadata?: boolean; + ordered?: boolean; + lean?: boolean; + throwOnValidationError?: boolean; + } + + type InsertManyResult = mongodb.InsertManyResult & { + insertedIds: { + [key: number]: InferId; + }; + mongoose?: { validationErrors?: Array }; + }; + + type UpdateWriteOpResult = mongodb.UpdateResult; + + interface MapReduceOptions { + map: Function | string; + reduce: (key: K, vals: T[]) => R; + /** query filter object. */ + query?: any; + /** sort input objects using this key */ + sort?: any; + /** max number of documents */ + limit?: number; + /** keep temporary data default: false */ + keeptemp?: boolean; + /** finalize function */ + finalize?: (key: K, val: R) => R; + /** scope variables exposed to map/reduce/finalize during execution */ + scope?: any; + /** it is possible to make the execution stay in JS. Provided in MongoDB > 2.0.X default: false */ + jsMode?: boolean; + /** provide statistics on job execution time. default: false */ + verbose?: boolean; + readPreference?: string; + /** sets the output target for the map reduce job. default: {inline: 1} */ + out?: { + /** the results are returned in an array */ + inline?: number; + /** + * {replace: 'collectionName'} add the results to collectionName: the + * results replace the collection + */ + replace?: string; + /** + * {reduce: 'collectionName'} add the results to collectionName: if + * dups are detected, uses the reducer / finalize functions + */ + reduce?: string; + /** + * {merge: 'collectionName'} add the results to collectionName: if + * dups exist the new docs overwrite the old + */ + merge?: string; + }; + } + + interface GeoSearchOptions { + /** x,y point to search for */ + near: number[]; + /** the maximum distance from the point near that a result can be */ + maxDistance: number; + /** The maximum number of results to return */ + limit?: number; + /** return the raw object instead of the Mongoose Model */ + lean?: boolean; + } + + interface ModifyResult { + value: Require_id | null; + /** see https://www.mongodb.com/docs/manual/reference/command/findAndModify/#lasterrorobject */ + lastErrorObject?: { + updatedExisting?: boolean; + upserted?: mongodb.ObjectId; + }; + ok: 0 | 1; + } + + type WriteConcern = mongodb.WriteConcern; + + /** A list of paths to validate. If set, Mongoose will validate only the modified paths that are in the given list. */ + type PathsToValidate = string[] | string; + /** + * @deprecated + */ + type pathsToValidate = PathsToValidate; + + interface SaveOptions extends + SessionOption { + checkKeys?: boolean; + j?: boolean; + safe?: boolean | WriteConcern; + timestamps?: boolean | QueryTimestampsConfig; + validateBeforeSave?: boolean; + validateModifiedOnly?: boolean; + w?: number | string; + wtimeout?: number; + } + + interface CreateOptions extends SaveOptions { + ordered?: boolean; + aggregateErrors?: boolean; + } + + interface RemoveOptions extends SessionOption, Omit {} + + const Model: Model; + + export type AnyBulkWriteOperation = { + insertOne: InsertOneModel; + } | { + replaceOne: ReplaceOneModel; + } | { + updateOne: UpdateOneModel; + } | { + updateMany: UpdateManyModel; + } | { + deleteOne: DeleteOneModel; + } | { + deleteMany: DeleteManyModel; + }; + + export interface InsertOneModel { + document: mongodb.OptionalId; + /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */ + timestamps?: boolean; + } + + export interface ReplaceOneModel { + /** The filter to limit the replaced document. */ + filter: FilterQuery; + /** The document with which to replace the matched document. */ + replacement: mongodb.WithoutId; + /** Specifies a collation. */ + collation?: mongodb.CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: mongodb.Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; + /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */ + timestamps?: boolean; + } + + export interface UpdateOneModel { + /** The filter to limit the updated documents. */ + filter: FilterQuery; + /** A document or pipeline containing update operators. */ + update: UpdateQuery; + /** A set of filters specifying to which array elements an update should apply. */ + arrayFilters?: AnyObject[]; + /** Specifies a collation. */ + collation?: mongodb.CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: mongodb.Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; + /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */ + timestamps?: boolean; + } + + export interface UpdateManyModel { + /** The filter to limit the updated documents. */ + filter: FilterQuery; + /** A document or pipeline containing update operators. */ + update: UpdateQuery; + /** A set of filters specifying to which array elements an update should apply. */ + arrayFilters?: AnyObject[]; + /** Specifies a collation. */ + collation?: mongodb.CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: mongodb.Hint; + /** When true, creates a new document if no document matches the query. */ + upsert?: boolean; + /** When false, do not add timestamps. When true, overrides the `timestamps` option set in the `bulkWrite` options. */ + timestamps?: boolean; + } + + export interface DeleteOneModel { + /** The filter to limit the deleted documents. */ + filter: FilterQuery; + /** Specifies a collation. */ + collation?: mongodb.CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: mongodb.Hint; + } + + export interface DeleteManyModel { + /** The filter to limit the deleted documents. */ + filter: FilterQuery; + /** Specifies a collation. */ + collation?: mongodb.CollationOptions; + /** The index to use. If specified, then the query system will only consider plans using the hinted index. */ + hint?: mongodb.Hint; + } + + /** + * Models are fancy constructors compiled from `Schema` definitions. + * An instance of a model is called a document. + * Models are responsible for creating and reading documents from the underlying MongoDB database + */ + export interface Model< + TRawDocType, + TQueryHelpers = {}, + TInstanceMethods = {}, + TVirtuals = {}, + THydratedDocumentType = HydratedDocument, + TSchema = any> extends + NodeJS.EventEmitter, + AcceptsDiscriminator, + IndexManager, + SessionStarter { + new >(doc?: DocType, fields?: any | null, options?: boolean | AnyObject): THydratedDocumentType; + + aggregate(pipeline?: PipelineStage[], options?: AggregateOptions): Aggregate>; + aggregate(pipeline: PipelineStage[]): Aggregate>; + + /** Base Mongoose instance the model uses. */ + base: Mongoose; + + /** + * If this is a discriminator model, `baseModelName` is the name of + * the base model. + */ + baseModelName: string | undefined; + + /* Cast the given POJO to the model's schema */ + castObject(obj: AnyObject, options?: { ignoreCastErrors?: boolean }): TRawDocType; + + /* Apply defaults to the given document or POJO. */ + applyDefaults(obj: AnyObject): AnyObject; + applyDefaults(obj: TRawDocType): TRawDocType; + + /** + * Sends multiple `insertOne`, `updateOne`, `updateMany`, `replaceOne`, + * `deleteOne`, and/or `deleteMany` operations to the MongoDB server in one + * command. This is faster than sending multiple independent operations (e.g. + * if you use `create()`) because with `bulkWrite()` there is only one network + * round trip to the MongoDB server. + */ + bulkWrite( + writes: Array>, + options: MongooseBulkWriteOptions & { ordered: false } + ): Promise; + bulkWrite( + writes: Array>, + options?: MongooseBulkWriteOptions + ): Promise; + + /** + * Sends multiple `save()` calls in a single `bulkWrite()`. This is faster than + * sending multiple `save()` calls because with `bulkSave()` there is only one + * network round trip to the MongoDB server. + */ + bulkSave(documents: Array, options?: MongooseBulkSaveOptions): Promise; + + /** Collection the model uses. */ + collection: Collection; + + /** Creates a `countDocuments` query: counts the number of documents that match `filter`. */ + countDocuments( + filter?: FilterQuery, + options?: (mongodb.CountOptions & MongooseBaseQueryOptions) | null + ): QueryWithHelpers< + number, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'countDocuments', + TInstanceMethods + >; + + /** Creates a new document or documents */ + create>(docs: Array, options: CreateOptions & { aggregateErrors: true }): Promise<(THydratedDocumentType | Error)[]>; + create>(docs: Array, options?: CreateOptions): Promise; + create>(doc: DocContents | TRawDocType): Promise; + create>(...docs: Array): Promise; + + /** + * Create the collection for this model. By default, if no indexes are specified, + * mongoose will not create the collection for the model until any documents are + * created. Use this method to create the collection explicitly. + */ + createCollection(options?: mongodb.CreateCollectionOptions & Pick): Promise>; + + /** + * Create an [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/). + * This function only works when connected to MongoDB Atlas. + */ + createSearchIndex(description: SearchIndexDescription): Promise; + + /** Connection the model uses. */ + db: Connection; + + /** + * Deletes all of the documents that match `conditions` from the collection. + * Behaves like `remove()`, but deletes all documents that match `conditions` + * regardless of the `single` option. + */ + deleteMany( + filter?: FilterQuery, + options?: (mongodb.DeleteOptions & MongooseBaseQueryOptions) | null + ): QueryWithHelpers< + mongodb.DeleteResult, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'deleteMany', + TInstanceMethods + >; + deleteMany( + filter: FilterQuery + ): QueryWithHelpers< + mongodb.DeleteResult, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'deleteMany', + TInstanceMethods + >; + + /** + * Deletes the first document that matches `conditions` from the collection. + * Behaves like `remove()`, but deletes at most one document regardless of the + * `single` option. + */ + deleteOne( + filter?: FilterQuery, + options?: (mongodb.DeleteOptions & MongooseBaseQueryOptions) | null + ): QueryWithHelpers< + mongodb.DeleteResult, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'deleteOne', + TInstanceMethods + >; + deleteOne( + filter: FilterQuery + ): QueryWithHelpers< + mongodb.DeleteResult, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'deleteOne', + TInstanceMethods + >; + + /** + * Delete an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) by name. + * This function only works when connected to MongoDB Atlas. + */ + dropSearchIndex(name: string): Promise; + + /** + * Event emitter that reports any errors that occurred. Useful for global error + * handling. + */ + events: NodeJS.EventEmitter; + + /** + * Finds a single document by its _id field. `findById(id)` is almost* + * equivalent to `findOne({ _id: id })`. If you want to query by a document's + * `_id`, use `findById()` instead of `findOne()`. + */ + findById( + id: any, + projection: ProjectionType | null | undefined, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOne', + TInstanceMethods + >; + findById( + id: any, + projection?: ProjectionType | null, + options?: QueryOptions | null + ): QueryWithHelpers; + findById( + id: any, + projection?: ProjectionType | null + ): QueryWithHelpers; + + /** Finds one document. */ + findOne( + filter: FilterQuery, + projection: ProjectionType | null | undefined, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOne', + TInstanceMethods + >; + findOne( + filter?: FilterQuery, + projection?: ProjectionType | null, + options?: QueryOptions | null + ): QueryWithHelpers; + findOne( + filter?: FilterQuery, + projection?: ProjectionType | null + ): QueryWithHelpers; + findOne( + filter?: FilterQuery + ): QueryWithHelpers; + + /** + * Shortcut for creating a new Document from existing raw data, pre-saved in the DB. + * The document returned has no paths marked as modified initially. + */ + hydrate(obj: any, projection?: AnyObject, options?: HydrateOptions): THydratedDocumentType; + + /** + * This function is responsible for building [indexes](https://www.mongodb.com/docs/manual/indexes/), + * unless [`autoIndex`](http://mongoosejs.com/docs/guide.html#autoIndex) is turned off. + * Mongoose calls this function automatically when a model is created using + * [`mongoose.model()`](/docs/api/mongoose.html#mongoose_Mongoose-model) or + * [`connection.model()`](/docs/api/connection.html#connection_Connection-model), so you + * don't need to call it. + */ + init(): Promise; + + /** Inserts one or more new documents as a single `insertMany` call to the MongoDB server. */ + insertMany( + docs: Array + ): Promise>; + insertMany( + docs: Array, + options: InsertManyOptions & { lean: true; } + ): Promise>>; + insertMany( + doc: Array, + options: InsertManyOptions & { ordered: false; rawResult: true; } + ): Promise> & { + mongoose: { + validationErrors: (CastError | Error.ValidatorError)[]; + results: Array< + Error | + Object | + THydratedDocumentType + > + } + }>; + insertMany( + docs: Array, + options: InsertManyOptions & { lean: true, rawResult: true; } + ): Promise>>; + insertMany( + docs: Array, + options: InsertManyOptions & { rawResult: true; } + ): Promise>>; + insertMany( + doc: Array, + options: InsertManyOptions + ): Promise>; + insertMany( + docs: Array, + options: InsertManyOptions & { lean: true; } + ): Promise>>; + insertMany( + docs: DocContents | TRawDocType, + options: InsertManyOptions & { lean: true; } + ): Promise>>; + insertMany( + doc: DocContents | TRawDocType, + options: InsertManyOptions & { ordered: false; rawResult: true; } + ): Promise> & { + mongoose: { + validationErrors: (CastError | Error.ValidatorError)[]; + results: Array< + Error | + Object | + MergeType + > + } + }>; + insertMany( + docs: Array, + options: InsertManyOptions & { rawResult: true; } + ): Promise>>; + insertMany( + docs: Array + ): Promise>>>; + insertMany( + doc: DocContents, + options: InsertManyOptions & { lean: true; } + ): Promise>>; + insertMany( + doc: DocContents, + options: InsertManyOptions & { rawResult: true; } + ): Promise>>; + insertMany( + doc: DocContents, + options: InsertManyOptions + ): Promise>>>; + insertMany( + docs: Array, + options: InsertManyOptions + ): Promise>>>; + insertMany( + doc: DocContents + ): Promise< + Array>> + >; + + /** + * List all [Atlas search indexes](https://www.mongodb.com/docs/atlas/atlas-search/create-index/) on this model's collection. + * This function only works when connected to MongoDB Atlas. + */ + listSearchIndexes(options?: mongodb.ListSearchIndexesOptions): Promise>; + + /** The name of the model */ + modelName: string; + + /** Populates document references. */ + populate( + docs: Array, + options: PopulateOptions | Array | string + ): Promise>; + populate( + doc: any, options: PopulateOptions | Array | string + ): Promise; + populate( + docs: Array, + options: PopulateOptions | Array | string + ): Promise>>; + populate( + doc: any, options: PopulateOptions | Array | string + ): Promise>; + + /** + * Update an existing [Atlas search index](https://www.mongodb.com/docs/atlas/atlas-search/create-index/). + * This function only works when connected to MongoDB Atlas. + */ + updateSearchIndex(name: string, definition: AnyObject): Promise; + + /** Casts and validates the given object against this model's schema, passing the given `context` to custom validators. */ + validate(): Promise; + validate(obj: any): Promise; + validate(obj: any, pathsOrOptions: PathsToValidate): Promise; + validate(obj: any, pathsOrOptions: { pathsToSkip?: pathsToSkip }): Promise; + + /** Watches the underlying collection for changes using [MongoDB change streams](https://www.mongodb.com/docs/manual/changeStreams/). */ + watch(pipeline?: Array>, options?: mongodb.ChangeStreamOptions & { hydrate?: boolean }): mongodb.ChangeStream; + + /** Adds a `$where` clause to this query */ + $where(argument: string | Function): QueryWithHelpers, THydratedDocumentType, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>; + + /** Registered discriminators for this model. */ + discriminators: { [name: string]: Model } | undefined; + + /** Translate any aliases fields/conditions so the final query or document object is pure */ + translateAliases(raw: any): any; + + /** Creates a `distinct` query: returns the distinct values of the given `field` that match `filter`. */ + distinct( + field: DocKey, + filter?: FilterQuery + ): QueryWithHelpers< + Array : ResultType>, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'distinct', + TInstanceMethods + >; + + /** Creates a `estimatedDocumentCount` query: counts the number of documents in the collection. */ + estimatedDocumentCount(options?: QueryOptions): QueryWithHelpers< + number, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'estimatedDocumentCount', + TInstanceMethods + >; + + /** + * Returns a document with its `_id` if at least one document exists in the database that matches + * the given `filter`, and `null` otherwise. + */ + exists( + filter: FilterQuery + ): QueryWithHelpers< + { _id: InferId } | null, + THydratedDocumentType, + TQueryHelpers, + TRawDocType, + 'findOne', + TInstanceMethods + >; + + /** Creates a `find` query: gets a list of documents that match `filter`. */ + find( + filter: FilterQuery, + projection: ProjectionType | null | undefined, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'find', + TInstanceMethods + >; + find( + filter: FilterQuery, + projection?: ProjectionType | null | undefined, + options?: QueryOptions | null | undefined + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>; + find( + filter: FilterQuery, + projection?: ProjectionType | null | undefined + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>; + find( + filter: FilterQuery + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>; + find( + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>; + + /** Creates a `findByIdAndDelete` query, filtering by the given `_id`. */ + findByIdAndDelete( + id: mongodb.ObjectId | any, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndDelete', + TInstanceMethods + >; + findByIdAndDelete( + id: mongodb.ObjectId | any, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete', TInstanceMethods>; + findByIdAndDelete( + id?: mongodb.ObjectId | any, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Creates a `findOneAndUpdate` query, filtering by the given `_id`. */ + findByIdAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { includeResultMetadata: true, lean: true } + ): QueryWithHelpers< + ModifyResult, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndUpdate', + TInstanceMethods + >; + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndUpdate', + TInstanceMethods + >; + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods>; + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery, + options: QueryOptions & { upsert: true } & ReturnsNewDoc + ): QueryWithHelpers; + findByIdAndUpdate( + id?: mongodb.ObjectId | any, + update?: UpdateQuery, + options?: QueryOptions | null + ): QueryWithHelpers; + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery + ): QueryWithHelpers; + + /** Creates a `findOneAndDelete` query: atomically finds the given document, deletes it, and returns the document as it was before deletion. */ + findOneAndDelete( + filter: FilterQuery, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndDelete', + TInstanceMethods + >; + findOneAndDelete( + filter: FilterQuery, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete', TInstanceMethods>; + findOneAndDelete( + filter?: FilterQuery | null, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Creates a `findOneAndReplace` query: atomically finds the given document and replaces it with `replacement`. */ + findOneAndReplace( + filter: FilterQuery, + replacement: TRawDocType | AnyObject, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndReplace', + TInstanceMethods + >; + findOneAndReplace( + filter: FilterQuery, + replacement: TRawDocType | AnyObject, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndReplace', TInstanceMethods>; + findOneAndReplace( + filter: FilterQuery, + replacement: TRawDocType | AnyObject, + options: QueryOptions & { upsert: true } & ReturnsNewDoc + ): QueryWithHelpers; + findOneAndReplace( + filter?: FilterQuery, + replacement?: TRawDocType | AnyObject, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Creates a `findOneAndUpdate` query: atomically find the first document that matches `filter` and apply `update`. */ + findOneAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { includeResultMetadata: true, lean: true } + ): QueryWithHelpers< + ModifyResult, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndUpdate', + TInstanceMethods + >; + findOneAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { lean: true } + ): QueryWithHelpers< + GetLeanResultType | null, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'findOneAndUpdate', + TInstanceMethods + >; + findOneAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate', TInstanceMethods>; + findOneAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { upsert: true } & ReturnsNewDoc + ): QueryWithHelpers; + findOneAndUpdate( + filter?: FilterQuery, + update?: UpdateQuery, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Creates a `replaceOne` query: finds the first document that matches `filter` and replaces it with `replacement`. */ + replaceOne( + filter?: FilterQuery, + replacement?: TRawDocType | AnyObject, + options?: (mongodb.ReplaceOptions & MongooseQueryOptions) | null + ): QueryWithHelpers; + + /** Apply changes made to this model's schema after this model was compiled. */ + recompileSchema(): void; + + /** Schema the model uses. */ + schema: Schema; + + /** Creates a `updateMany` query: updates all documents that match `filter` with `update`. */ + updateMany( + filter?: FilterQuery, + update?: UpdateQuery | UpdateWithAggregationPipeline, + options?: (mongodb.UpdateOptions & MongooseUpdateQueryOptions) | null + ): QueryWithHelpers; + + /** Creates a `updateOne` query: updates the first document that matches `filter` with `update`. */ + updateOne( + filter?: FilterQuery, + update?: UpdateQuery | UpdateWithAggregationPipeline, + options?: (mongodb.UpdateOptions & MongooseUpdateQueryOptions) | null + ): QueryWithHelpers; + + /** Creates a Query, applies the passed conditions, and returns the Query. */ + where( + path: string, + val?: any + ): QueryWithHelpers, ResultDoc, TQueryHelpers, TRawDocType, 'find', TInstanceMethods>; + where(obj: object): QueryWithHelpers< + Array, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'find', + TInstanceMethods + >; + where(): QueryWithHelpers< + Array, + ResultDoc, + TQueryHelpers, + TRawDocType, + 'find', + TInstanceMethods + >; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/mongooseoptions.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/mongooseoptions.d.ts new file mode 100644 index 000000000..9c35ab822 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/mongooseoptions.d.ts @@ -0,0 +1,219 @@ +declare module 'mongoose' { + import stream = require('stream'); + + interface MongooseOptions { + /** + * Set to `true` to set `allowDiskUse` to true to all aggregation operations by default. + * + * @default false + */ + allowDiskUse?: boolean; + /** + * Set to `false` to skip applying global plugins to child schemas. + * + * @default true + */ + applyPluginsToChildSchemas?: boolean; + + /** + * Set to `true` to apply global plugins to discriminator schemas. + * This typically isn't necessary because plugins are applied to the base schema and + * discriminators copy all middleware, methods, statics, and properties from the base schema. + * + * @default false + */ + applyPluginsToDiscriminators?: boolean; + + /** + * autoCreate is `true` by default unless readPreference is secondary or secondaryPreferred, + * which means Mongoose will attempt to create every model's underlying collection before + * creating indexes. If readPreference is secondary or secondaryPreferred, Mongoose will + * default to false for both autoCreate and autoIndex because both createCollection() and + * createIndex() will fail when connected to a secondary. + */ + autoCreate?: boolean; + + /** + * Set to `false` to disable automatic index creation for all models associated with this Mongoose instance. + * + * @default true + */ + autoIndex?: boolean; + + /** + * enable/disable mongoose's buffering mechanism for all connections and models. + * + * @default true + */ + bufferCommands?: boolean; + + /** + * If bufferCommands is on, this option sets the maximum amount of time Mongoose + * buffering will wait before throwing an error. + * If not specified, Mongoose will use 10000 (10 seconds). + * + * @default 10000 + */ + bufferTimeoutMS?: number; + + /** + * Set to `true` to `clone()` all schemas before compiling into a model. + * + * @default false + */ + cloneSchemas?: boolean; + + /** + * Set to `false` to disable the creation of the initial default connection. + * + * @default true + */ + createInitialConnection?: boolean; + + /** + * If `true`, prints the operations mongoose sends to MongoDB to the console. + * If a writable stream is passed, it will log to that stream, without colorization. + * If a callback function is passed, it will receive the collection name, the method + * name, then all arguments passed to the method. For example, if you wanted to + * replicate the default logging, you could output from the callback + * `Mongoose: ${collectionName}.${methodName}(${methodArgs.join(', ')})`. + * + * @default false + */ + debug?: + | boolean + | { color?: boolean; shell?: boolean; } + | stream.Writable + | ((collectionName: string, methodName: string, ...methodArgs: any[]) => void); + + /** + * If `true`, adds a `id` virtual to all schemas unless overwritten on a per-schema basis. + * @defaultValue true + */ + id?: boolean; + + /** + * If `false`, it will change the `createdAt` field to be [`immutable: false`](https://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-immutable) + * which means you can update the `createdAt`. + * + * @default true + */ + 'timestamps.createdAt.immutable'?: boolean + + /** If set, attaches [maxTimeMS](https://www.mongodb.com/docs/manual/reference/operator/meta/maxTimeMS/) to every query */ + maxTimeMS?: number; + + /** + * Mongoose adds a getter to MongoDB ObjectId's called `_id` that + * returns `this` for convenience with populate. Set this to false to remove the getter. + * + * @default true + */ + objectIdGetter?: boolean; + + /** + * Set to `true` to default to overwriting models with the same name when calling + * `mongoose.model()`, as opposed to throwing an `OverwriteModelError`. + * + * @default false + */ + overwriteModels?: boolean; + + /** + * If `false`, changes the default `returnOriginal` option to `findOneAndUpdate()`, + * `findByIdAndUpdate`, and `findOneAndReplace()` to false. This is equivalent to + * setting the `new` option to `true` for `findOneAndX()` calls by default. Read our + * `findOneAndUpdate()` [tutorial](https://mongoosejs.com/docs/tutorials/findoneandupdate.html) + * for more information. + * + * @default true + */ + returnOriginal?: boolean; + + /** + * Set to true to enable [update validators]( + * https://mongoosejs.com/docs/validation.html#update-validators + * ) for all validators by default. + * + * @default false + */ + runValidators?: boolean; + + /** + * Sanitizes query filters against [query selector injection attacks]( + * https://thecodebarbarian.com/2014/09/04/defending-against-query-selector-injection-attacks.html + * ) by wrapping any nested objects that have a property whose name starts with $ in a $eq. + */ + sanitizeFilter?: boolean; + + sanitizeProjection?: boolean; + + /** + * Set to false to opt out of Mongoose adding all fields that you `populate()` + * to your `select()`. The schema-level option `selectPopulatedPaths` overwrites this one. + * + * @default true + */ + selectPopulatedPaths?: boolean; + + /** + * Mongoose also sets defaults on update() and findOneAndUpdate() when the upsert option is + * set by adding your schema's defaults to a MongoDB $setOnInsert operator. You can disable + * this behavior by setting the setDefaultsOnInsert option to false. + * + * @default true + */ + setDefaultsOnInsert?: boolean; + + /** + * Sets the default strict mode for schemas. + * May be `false`, `true`, or `'throw'`. + * + * @default true + */ + strict?: boolean | 'throw'; + + /** + * Set to `false` to allow populating paths that aren't in the schema. + * + * @default true + */ + strictPopulate?: boolean; + + /** + * Sets the default [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas. + * May be `false`, `true`, or `'throw'`. + * + * @default false + */ + strictQuery?: boolean | 'throw'; + + /** + * Overwrites default objects to `toJSON()`, for determining how Mongoose + * documents get serialized by `JSON.stringify()` + * + * @default { transform: true, flattenDecimals: true } + */ + toJSON?: ToObjectOptions; + + /** + * Overwrites default objects to `toObject()` + * + * @default { transform: true, flattenDecimals: true } + */ + toObject?: ToObjectOptions; + + /** + * Set to true to make Mongoose use Node.js' built-in AsyncLocalStorage (Node >= 16.0.0) + * to set `session` option on all operations within a `connection.transaction(fn)` call + * by default. Defaults to false. + */ + transactionAsyncLocalStorage?: boolean; + + /** + * If `true`, convert any aliases in filter, projection, update, and distinct + * to their database property names. Defaults to false. + */ + translateAliases?: boolean; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/pipelinestage.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/pipelinestage.d.ts new file mode 100644 index 000000000..c709528ec --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/pipelinestage.d.ts @@ -0,0 +1,332 @@ +declare module 'mongoose' { + /** + * [Stages reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/#aggregation-pipeline-stages) + */ + export type PipelineStage = + | PipelineStage.AddFields + | PipelineStage.Bucket + | PipelineStage.BucketAuto + | PipelineStage.CollStats + | PipelineStage.Count + | PipelineStage.Densify + | PipelineStage.Documents + | PipelineStage.Facet + | PipelineStage.Fill + | PipelineStage.GeoNear + | PipelineStage.GraphLookup + | PipelineStage.Group + | PipelineStage.IndexStats + | PipelineStage.Limit + | PipelineStage.ListSessions + | PipelineStage.Lookup + | PipelineStage.Match + | PipelineStage.Merge + | PipelineStage.Out + | PipelineStage.PlanCacheStats + | PipelineStage.Project + | PipelineStage.Redact + | PipelineStage.ReplaceRoot + | PipelineStage.ReplaceWith + | PipelineStage.Sample + | PipelineStage.Search + | PipelineStage.SearchMeta + | PipelineStage.Set + | PipelineStage.SetWindowFields + | PipelineStage.Skip + | PipelineStage.Sort + | PipelineStage.SortByCount + | PipelineStage.UnionWith + | PipelineStage.Unset + | PipelineStage.Unwind + | PipelineStage.VectorSearch; + + export namespace PipelineStage { + export interface AddFields { + /** [`$addFields` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/addFields/) */ + $addFields: Record + } + + export interface Bucket { + /** [`$bucket` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/bucket/) */ + $bucket: { + groupBy: Expression; + boundaries: any[]; + default?: any + output?: Record + } + } + + export interface BucketAuto { + /** [`$bucketAuto` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/bucketAuto/) */ + $bucketAuto: { + groupBy: Expression | Record; + buckets: number; + output?: Record; + granularity?: 'R5' | 'R10' | 'R20' | 'R40' | 'R80' | '1-2-5' | 'E6' | 'E12' | 'E24' | 'E48' | 'E96' | 'E192' | 'POWERSOF2'; + } + } + + export interface CollStats { + /** [`$collStats` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/collStats/) */ + $collStats: { + latencyStats?: { histograms?: boolean }; + storageStats?: { scale?: number }; + count?: Record; + queryExecStats?: Record; + } + } + + export interface Count { + /** [`$count` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/count/) */ + $count: string; + } + + export interface Densify{ + /** [`$densify` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/densify/) */ + $densify: { + field: string, + partitionByFields?: string[], + range: { + step: number, + unit?: 'millisecond' | 'second' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'year', + bounds: number[] | globalThis.Date[] | 'full' | 'partition' + } + } + } + + export interface Documents { + /** [`$documents` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/documents/) */ + $documents: Record[] + } + + export interface Fill { + /** [`$fill` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/fill/) */ + $fill: { + partitionBy?: Expression, + partitionByFields?: string[], + sortBy?: Record, + output: Record + } + } + + export interface Facet { + /** [`$facet` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/facet/) */ + $facet: Record; + } + + export type FacetPipelineStage = Exclude; + + export interface GeoNear { + /** [`$geoNear` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/geoNear/) */ + $geoNear: { + near: { type: 'Point'; coordinates: [number, number] } | [number, number]; + distanceField: string; + distanceMultiplier?: number; + includeLocs?: string; + key?: string; + maxDistance?: number; + minDistance?: number; + query?: AnyObject; + spherical?: boolean; + /** + * Deprecated. Use only with MondoDB below 4.2 (removed in 4.2) + * @deprecated + */ + num?: number; + } + } + + export interface GraphLookup { + /** [`$graphLookup` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/graphLookup/) */ + $graphLookup: { + from: string; + startWith: any + connectFromField: string; + connectToField: string; + as: string; + maxDepth?: number; + depthField?: string; + restrictSearchWithMatch?: AnyObject; + } + } + + export interface Group { + /** [`$group` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/group) */ + $group: { _id: any } | { [key: string]: AccumulatorOperator } + } + + export interface IndexStats { + /** [`$indexStats` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexStats/) */ + $indexStats: Record; + } + + export interface Limit { + /** [`$limit` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/limit/) */ + $limit: number + } + + export interface ListSessions { + /** [`$listSessions` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/listSessions/) */ + $listSessions: { users?: { user: string; db: string }[] } | { allUsers?: true } + } + + export interface Lookup { + /** [`$lookup` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/) */ + $lookup: { + from: string + as: string + localField?: string + foreignField?: string + let?: Record + pipeline?: Exclude[] + } + } + + export interface Match { + /** [`$match` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/match/) */ + $match: FilterQuery; + } + + export interface Merge { + /** [`$merge` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/merge/) */ + $merge: { + into: string | { db: string; coll: string } + on?: string | string[] + let?: Record + whenMatched?: 'replace' | 'keepExisting' | 'merge' | 'fail' | Extract[] + whenNotMatched?: 'insert' | 'discard' | 'fail' + } + } + + export interface Out { + /** [`$out` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/out/) */ + $out: string | { db: string; coll: string } + } + + export interface PlanCacheStats { + /** [`$planCacheStats` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/planCacheStats/) */ + $planCacheStats: Record + } + + export interface Project { + /** [`$project` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/project/) */ + $project: { [field: string]: AnyExpression | Expression | Project['$project'] } + } + + export interface Redact { + /** [`$redact` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/redact/) */ + $redact: Expression; + } + + export interface ReplaceRoot { + /** [`$replaceRoot` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceRoot/) */ + $replaceRoot: { newRoot: AnyExpression } + } + + export interface ReplaceWith { + /** [`$replaceWith` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceWith/) */ + $replaceWith: ObjectExpressionOperator | { [field: string]: Expression } | `$${string}`; + } + + export interface Sample { + /** [`$sample` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/sample/) */ + $sample: { size: number } + } + + export interface Search { + /** [`$search` reference](https://www.mongodb.com/docs/atlas/atlas-search/query-syntax/) */ + $search: { + index?: string; + highlight?: { + /** [`highlightPath` reference](https://docs.atlas.mongodb.com/atlas-search/path-construction/#multiple-field-search) */ + path: string | string[] | { value: string, multi: string }; + maxCharsToExamine?: number; + maxNumPassages?: number; + }; + [operator: string]: any; + } + } + + export interface SearchMeta { + /** [`$searchMeta` reference](https://www.mongodb.com/docs/atlas/atlas-search/query-syntax/#mongodb-pipeline-pipe.-searchMeta) */ + $searchMeta: { + index?: string; + highlight?: { + /** [`highlightPath` reference](https://docs.atlas.mongodb.com/atlas-search/path-construction/#multiple-field-search) */ + path: string | string[] | { value: string, multi: string }; + maxCharsToExamine?: number; + maxNumPassages?: number; + }; + [operator: string]: any; + } + } + + export interface Set { + /** [`$set` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/set/) */ + $set: Record + } + + export interface SetWindowFields { + /** [`$setWindowFields` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/setWindowFields/) */ + $setWindowFields: { + partitionBy?: any + sortBy?: Record + output: Record< + string, + WindowOperator & { + window?: { + documents?: [string | number, string | number] + range?: [string | number, string | number] + unit?: 'year' | 'quarter' | 'month' | 'week' | 'day' | 'hour' | 'minute' | 'second' | 'millisecond' + } + } + > + } + } + + export interface Skip { + /** [`$skip` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/skip/) */ + $skip: number + } + + export interface Sort { + /** [`$sort` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/sort/) */ + $sort: Record + } + + export interface SortByCount { + /** [`$sortByCount` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/sortByCount/) */ + $sortByCount: Expression; + } + + export interface UnionWith { + /** [`$unionWith` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unionWith/) */ + $unionWith: + | string + | { coll: string; pipeline?: Exclude[] } + | { coll?: string; pipeline: Exclude[] } + } + + export interface Unset { + /** [`$unset` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unset/) */ + $unset: string | string[] + } + + export interface Unwind { + /** [`$unwind` reference](https://www.mongodb.com/docs/manual/reference/operator/aggregation/unwind/) */ + $unwind: string | { path: string; includeArrayIndex?: string; preserveNullAndEmptyArrays?: boolean } + } + export interface VectorSearch { + /** [`$vectorSearch` reference](https://www.mongodb.com/docs/atlas/atlas-vector-search/vector-search-stage/) */ + $vectorSearch: { + index: string, + path: string, + queryVector: number[], + numCandidates: number, + limit: number, + filter?: Expression, + } + } + + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/populate.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/populate.d.ts new file mode 100644 index 000000000..0db038014 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/populate.d.ts @@ -0,0 +1,45 @@ +declare module 'mongoose' { + + /** + * Reference another Model + */ + type PopulatedDoc< + PopulatedType, + RawId extends RefType = (PopulatedType extends { _id?: RefType; } ? NonNullable : Types.ObjectId) | undefined + > = PopulatedType | RawId; + + interface PopulateOptions { + /** space delimited path(s) to populate */ + path: string; + /** fields to select */ + select?: any; + /** query conditions to match */ + match?: any; + /** optional model to use for population */ + model?: string | Model; + /** optional query options like sort, limit, etc */ + options?: QueryOptions; + /** correct limit on populated array */ + perDocumentLimit?: number; + /** optional boolean, set to `false` to allow populating paths that aren't in the schema */ + strictPopulate?: boolean; + /** deep populate */ + populate?: string | PopulateOptions | (string | PopulateOptions)[]; + /** + * If true Mongoose will always set `path` to a document, or `null` if no document was found. + * If false Mongoose will always set `path` to an array, which will be empty if no documents are found. + * Inferred from schema by default. + */ + justOne?: boolean; + /** transform function to call on every populated doc */ + transform?: (doc: any, id: any) => any; + /** Overwrite the schema-level local field to populate on if this is a populated virtual. */ + localField?: string; + /** Overwrite the schema-level foreign field to populate on if this is a populated virtual. */ + foreignField?: string; + } + + interface PopulateOption { + populate?: string | string[] | PopulateOptions | PopulateOptions[]; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/query.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/query.d.ts new file mode 100644 index 000000000..e827ac2d7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/query.d.ts @@ -0,0 +1,842 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + export type Condition = T | QuerySelector | any; + + /** + * Filter query to select the documents that match the query + * @example + * ```js + * { age: { $gte: 30 } } + * ``` + */ + type FilterQuery = { + [P in keyof T]?: Condition; + } & RootQuerySelector; + + type MongooseBaseQueryOptionKeys = + | 'context' + | 'multipleCastError' + | 'overwriteDiscriminatorKey' + | 'populate' + | 'runValidators' + | 'sanitizeProjection' + | 'sanitizeFilter' + | 'setDefaultsOnInsert' + | 'strict' + | 'strictQuery' + | 'translateAliases'; + + type MongooseQueryOptions< + DocType = unknown, + Keys extends keyof QueryOptions = MongooseBaseQueryOptionKeys | 'timestamps' | 'lean' + > = Pick, Keys> & { + [other: string]: any; + }; + + type MongooseBaseQueryOptions = MongooseQueryOptions; + + type MongooseUpdateQueryOptions = MongooseQueryOptions< + DocType, + MongooseBaseQueryOptionKeys | 'timestamps' + >; + + type ProjectionFields = { [Key in keyof DocType]?: any } & Record; + + type QueryWithHelpers< + ResultType, + DocType, + THelpers = {}, + RawDocType = DocType, + QueryOp = 'find', + TInstanceMethods = Record + > = Query & THelpers; + + type QuerySelector = { + // Comparison + $eq?: T; + $gt?: T; + $gte?: T; + $in?: [T] extends AnyArray ? Unpacked[] : T[]; + $lt?: T; + $lte?: T; + $ne?: T; + $nin?: [T] extends AnyArray ? Unpacked[] : T[]; + // Logical + $not?: T extends string ? QuerySelector | RegExp : QuerySelector; + // Element + /** + * When `true`, `$exists` matches the documents that contain the field, + * including documents where the field value is null. + */ + $exists?: boolean; + $type?: string | number; + // Evaluation + $expr?: any; + $jsonSchema?: any; + $mod?: T extends number ? [number, number] : never; + $regex?: T extends string ? RegExp | string : never; + $options?: T extends string ? string : never; + // Geospatial + // TODO: define better types for geo queries + $geoIntersects?: { $geometry: object }; + $geoWithin?: object; + $near?: object; + $nearSphere?: object; + $maxDistance?: number; + // Array + // TODO: define better types for $all and $elemMatch + $all?: T extends AnyArray ? any[] : never; + $elemMatch?: T extends AnyArray ? object : never; + $size?: T extends AnyArray ? number : never; + // Bitwise + $bitsAllClear?: number | mongodb.Binary | number[]; + $bitsAllSet?: number | mongodb.Binary | number[]; + $bitsAnyClear?: number | mongodb.Binary | number[]; + $bitsAnySet?: number | mongodb.Binary | number[]; + }; + + type RootQuerySelector = { + /** @see https://www.mongodb.com/docs/manual/reference/operator/query/and/#op._S_and */ + $and?: Array>; + /** @see https://www.mongodb.com/docs/manual/reference/operator/query/nor/#op._S_nor */ + $nor?: Array>; + /** @see https://www.mongodb.com/docs/manual/reference/operator/query/or/#op._S_or */ + $or?: Array>; + /** @see https://www.mongodb.com/docs/manual/reference/operator/query/text */ + $text?: { + $search: string; + $language?: string; + $caseSensitive?: boolean; + $diacriticSensitive?: boolean; + }; + /** @see https://www.mongodb.com/docs/manual/reference/operator/query/where/#op._S_where */ + $where?: string | Function; + /** @see https://www.mongodb.com/docs/manual/reference/operator/query/comment/#op._S_comment */ + $comment?: string; + // we could not find a proper TypeScript generic to support nested queries e.g. 'user.friends.name' + // this will mark all unrecognized properties as any (including nested queries) + [key: string]: any; + }; + + interface QueryTimestampsConfig { + createdAt?: boolean; + updatedAt?: boolean; + } + + interface QueryOptions extends + PopulateOption, + SessionOption { + arrayFilters?: { [key: string]: any }[]; + batchSize?: number; + collation?: mongodb.CollationOptions; + comment?: any; + context?: string; + explain?: mongodb.ExplainVerbosityLike; + fields?: any | string; + hint?: mongodb.Hint; + /** + * If truthy, mongoose will return the document as a plain JavaScript object rather than a mongoose document. + */ + lean?: boolean | Record; + limit?: number; + maxTimeMS?: number; + multi?: boolean; + multipleCastError?: boolean; + /** + * By default, `findOneAndUpdate()` returns the document as it was **before** + * `update` was applied. If you set `new: true`, `findOneAndUpdate()` will + * instead give you the object after `update` was applied. + */ + new?: boolean; + + overwriteDiscriminatorKey?: boolean; + projection?: ProjectionType; + /** + * if true, returns the full ModifyResult rather than just the document + */ + includeResultMetadata?: boolean; + readPreference?: string | mongodb.ReadPreferenceMode; + /** + * An alias for the `new` option. `returnOriginal: false` is equivalent to `new: true`. + */ + returnOriginal?: boolean; + /** + * Another alias for the `new` option. `returnOriginal` is deprecated so this should be used. + */ + returnDocument?: 'before' | 'after'; + /** + * Set to true to enable `update validators` + * (https://mongoosejs.com/docs/validation.html#update-validators). Defaults to false. + */ + runValidators?: boolean; + /* Set to `true` to automatically sanitize potentially unsafe user-generated query projections */ + sanitizeProjection?: boolean; + /** + * Set to `true` to automatically sanitize potentially unsafe query filters by stripping out query selectors that + * aren't explicitly allowed using `mongoose.trusted()`. + */ + sanitizeFilter?: boolean; + setDefaultsOnInsert?: boolean; + skip?: number; + sort?: any; + /** overwrites the schema's strict mode option */ + strict?: boolean | string; + /** + * equal to `strict` by default, may be `false`, `true`, or `'throw'`. Sets the default + * [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas. + */ + strictQuery?: boolean | 'throw'; + tailable?: number; + /** + * If set to `false` and schema-level timestamps are enabled, + * skip timestamps for this update. Note that this allows you to overwrite + * timestamps. Does nothing if schema-level timestamps are not set. + */ + timestamps?: boolean | QueryTimestampsConfig; + /** + * If `true`, convert any aliases in filter, projection, update, and distinct + * to their database property names. Defaults to false. + */ + translateAliases?: boolean; + upsert?: boolean; + useBigInt64?: boolean; + writeConcern?: mongodb.WriteConcern; + + [other: string]: any; + } + + type QueryOpThatReturnsDocument = 'find' | 'findOne' | 'findOneAndUpdate' | 'findOneAndReplace' | 'findOneAndDelete'; + + type GetLeanResultType = QueryOp extends QueryOpThatReturnsDocument + ? (ResultType extends any[] ? Require_id>[] : Require_id>) + : ResultType; + + type MergePopulatePaths> = QueryOp extends QueryOpThatReturnsDocument + ? ResultType extends null + ? ResultType + : ResultType extends (infer U)[] + ? U extends Document + ? HydratedDocument, TInstanceMethods, TQueryHelpers>[] + : (MergeType)[] + : ResultType extends Document + ? HydratedDocument, TInstanceMethods, TQueryHelpers> + : MergeType + : MergeType; + + class Query> implements SessionOperation { + _mongooseOptions: MongooseQueryOptions; + + /** + * Returns a wrapper around a [mongodb driver cursor](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html). + * A QueryCursor exposes a Streams3 interface, as well as a `.next()` function. + * This is equivalent to calling `.cursor()` with no arguments. + */ + [Symbol.asyncIterator](): AsyncIterableIterator>; + + /** Executes the query */ + exec(): Promise; + + $where(argument: string | Function): QueryWithHelpers< + DocType[], + DocType, + THelpers, + RawDocType, + QueryOp, + TInstanceMethods + >; + + /** Specifies an `$all` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + all(path: string, val: Array): this; + all(val: Array): this; + + /** Sets the allowDiskUse option for the query (ignored for < 4.4.0) */ + allowDiskUse(value: boolean): this; + + /** Specifies arguments for an `$and` condition. */ + and(array: FilterQuery[]): this; + + /** Specifies the batchSize option. */ + batchSize(val: number): this; + + /** Specifies a `$box` condition */ + box(lower: number[], upper: number[]): this; + box(val: any): this; + + /** + * Casts this query to the schema of `model`. + * + * @param {Model} [model] the model to cast to. If not set, defaults to `this.model` + * @param {Object} [obj] If not set, defaults to this query's conditions + * @return {Object} the casted `obj` + */ + cast(model?: Model | null, obj?: any): any; + + /** + * Executes the query returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + * Like `.then()`, but only takes a rejection handler. + */ + catch: Promise['catch']; + + /** + * Executes the query returning a `Promise` which will be + * resolved with `.finally()` chained. + */ + finally: Promise['finally']; + + // Returns a string representation of this query. + [Symbol.toStringTag]: string; + + /** Specifies a `$center` or `$centerSphere` condition. */ + circle(path: string, area: any): this; + circle(area: any): this; + + /** Make a copy of this query so you can re-execute it. */ + clone(): this; + + /** Adds a collation to this op (MongoDB 3.4 and up) */ + collation(value: mongodb.CollationOptions): this; + + /** Specifies the `comment` option. */ + comment(val: string): this; + + /** Specifies this query as a `countDocuments` query. */ + countDocuments( + criteria?: FilterQuery, + options?: QueryOptions + ): QueryWithHelpers; + + /** + * Returns a wrapper around a [mongodb driver cursor](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html). + * A QueryCursor exposes a Streams3 interface, as well as a `.next()` function. + */ + cursor(options?: QueryOptions): Cursor, QueryOptions>; + + /** + * Declare and/or execute this query as a `deleteMany()` operation. Works like + * remove, except it deletes _every_ document that matches `filter` in the + * collection, regardless of the value of `single`. + */ + deleteMany( + filter?: FilterQuery, + options?: QueryOptions + ): QueryWithHelpers; + deleteMany(filter: FilterQuery): QueryWithHelpers< + any, + DocType, + THelpers, + RawDocType, + 'deleteMany', + TInstanceMethods + >; + deleteMany(): QueryWithHelpers; + + /** + * Declare and/or execute this query as a `deleteOne()` operation. Works like + * remove, except it deletes at most one document regardless of the `single` + * option. + */ + deleteOne( + filter?: FilterQuery, + options?: QueryOptions + ): QueryWithHelpers; + deleteOne(filter: FilterQuery): QueryWithHelpers< + any, + DocType, + THelpers, + RawDocType, + 'deleteOne', + TInstanceMethods + >; + deleteOne(): QueryWithHelpers; + + /** Creates a `distinct` query: returns the distinct values of the given `field` that match `filter`. */ + distinct( + field: DocKey, + filter?: FilterQuery + ): QueryWithHelpers : ResultType>, DocType, THelpers, RawDocType, 'distinct', TInstanceMethods>; + + /** Specifies a `$elemMatch` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + elemMatch(path: K, val: any): this; + elemMatch(val: Function | any): this; + + /** + * Gets/sets the error flag on this query. If this flag is not null or + * undefined, the `exec()` promise will reject without executing. + */ + error(): NativeError | null; + error(val: NativeError | null): this; + + /** Specifies the complementary comparison value for paths specified with `where()` */ + equals(val: any): this; + + /** Creates a `estimatedDocumentCount` query: counts the number of documents in the collection. */ + estimatedDocumentCount(options?: QueryOptions): QueryWithHelpers< + number, + DocType, + THelpers, + RawDocType, + 'estimatedDocumentCount', + TInstanceMethods + >; + + /** Specifies a `$exists` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + exists(path: K, val: boolean): this; + exists(val: boolean): this; + + /** + * Sets the [`explain` option](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/), + * which makes this query return detailed execution stats instead of the actual + * query result. This method is useful for determining what index your queries + * use. + */ + explain(verbose?: mongodb.ExplainVerbosityLike): this; + + /** Creates a `find` query: gets a list of documents that match `filter`. */ + find( + filter: FilterQuery, + projection?: ProjectionType | null, + options?: QueryOptions | null + ): QueryWithHelpers, DocType, THelpers, RawDocType, 'find', TInstanceMethods>; + find( + filter: FilterQuery, + projection?: ProjectionType | null + ): QueryWithHelpers, DocType, THelpers, RawDocType, 'find', TInstanceMethods>; + find( + filter: FilterQuery + ): QueryWithHelpers, DocType, THelpers, RawDocType, 'find', TInstanceMethods>; + find(): QueryWithHelpers, DocType, THelpers, RawDocType, 'find', TInstanceMethods>; + + /** Declares the query a findOne operation. When executed, returns the first found document. */ + findOne( + filter?: FilterQuery, + projection?: ProjectionType | null, + options?: QueryOptions | null + ): QueryWithHelpers; + findOne( + filter?: FilterQuery, + projection?: ProjectionType | null + ): QueryWithHelpers; + findOne( + filter?: FilterQuery + ): QueryWithHelpers; + + /** Creates a `findOneAndDelete` query: atomically finds the given document, deletes it, and returns the document as it was before deletion. */ + findOneAndDelete( + filter?: FilterQuery, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Creates a `findOneAndUpdate` query: atomically find the first document that matches `filter` and apply `update`. */ + findOneAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, DocType, THelpers, RawDocType, 'findOneAndUpdate', TInstanceMethods>; + findOneAndUpdate( + filter: FilterQuery, + update: UpdateQuery, + options: QueryOptions & { upsert: true } & ReturnsNewDoc + ): QueryWithHelpers; + findOneAndUpdate( + filter?: FilterQuery, + update?: UpdateQuery, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Declares the query a findById operation. When executed, returns the document with the given `_id`. */ + findById( + id: mongodb.ObjectId | any, + projection?: ProjectionType | null, + options?: QueryOptions | null + ): QueryWithHelpers; + findById( + id: mongodb.ObjectId | any, + projection?: ProjectionType | null + ): QueryWithHelpers; + findById( + id: mongodb.ObjectId | any + ): QueryWithHelpers; + + /** Creates a `findByIdAndDelete` query, filtering by the given `_id`. */ + findByIdAndDelete( + id: mongodb.ObjectId | any, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers, DocType, THelpers, RawDocType, 'findOneAndDelete', TInstanceMethods>; + findByIdAndDelete( + id?: mongodb.ObjectId | any, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Creates a `findOneAndUpdate` query, filtering by the given `_id`. */ + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery, + options: QueryOptions & { includeResultMetadata: true } + ): QueryWithHelpers; + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery, + options: QueryOptions & { upsert: true } & ReturnsNewDoc + ): QueryWithHelpers; + findByIdAndUpdate( + id?: mongodb.ObjectId | any, + update?: UpdateQuery, + options?: QueryOptions | null + ): QueryWithHelpers; + findByIdAndUpdate( + id: mongodb.ObjectId | any, + update: UpdateQuery + ): QueryWithHelpers; + + /** Specifies a `$geometry` condition */ + geometry(object: { type: string, coordinates: any[] }): this; + + /** + * For update operations, returns the value of a path in the update's `$set`. + * Useful for writing getters/setters that can work with both update operations + * and `save()`. + */ + get(path: string): any; + + /** Returns the current query filter (also known as conditions) as a POJO. */ + getFilter(): FilterQuery; + + /** Gets query options. */ + getOptions(): QueryOptions; + + /** Gets a list of paths to be populated by this query */ + getPopulatedPaths(): Array; + + /** Returns the current query filter. Equivalent to `getFilter()`. */ + getQuery(): FilterQuery; + + /** Returns the current update operations as a JSON object. */ + getUpdate(): UpdateQuery | UpdateWithAggregationPipeline | null; + + /** Specifies a `$gt` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + gt(path: K, val: any): this; + gt(val: number): this; + + /** Specifies a `$gte` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + gte(path: K, val: any): this; + gte(val: number): this; + + /** Sets query hints. */ + hint(val: any): this; + + /** Specifies an `$in` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + in(path: K, val: any[]): this; + in(val: Array): this; + + /** Declares an intersects query for `geometry()`. */ + intersects(arg?: any): this; + + /** Requests acknowledgement that this operation has been persisted to MongoDB's on-disk journal. */ + j(val: boolean | null): this; + + /** Sets the lean option. */ + lean< + LeanResultType = GetLeanResultType + >( + val?: boolean | any + ): QueryWithHelpers< + ResultType extends null + ? LeanResultType | null + : LeanResultType, + DocType, + THelpers, + RawDocType, + QueryOp, + TInstanceMethods + >; + + /** Specifies the maximum number of documents the query will return. */ + limit(val: number): this; + + /** Specifies a `$lt` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + lt(path: K, val: any): this; + lt(val: number): this; + + /** Specifies a `$lte` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + lte(path: K, val: any): this; + lte(val: number): this; + + /** + * Runs a function `fn` and treats the return value of `fn` as the new value + * for the query to resolve to. + */ + transform(fn: (doc: ResultType) => MappedType): QueryWithHelpers; + + /** Specifies an `$maxDistance` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + maxDistance(path: string, val: number): this; + maxDistance(val: number): this; + + /** + * Sets the [maxTimeMS](https://www.mongodb.com/docs/manual/reference/method/cursor.maxTimeMS/) + * option. This will tell the MongoDB server to abort if the query or write op + * has been running for more than `ms` milliseconds. + */ + maxTimeMS(ms: number): this; + + /** Merges another Query or conditions object into this one. */ + merge(source: Query | FilterQuery): this; + + /** Specifies a `$mod` condition, filters documents for documents whose `path` property is a number that is equal to `remainder` modulo `divisor`. */ + mod(path: K, val: number): this; + mod(val: Array): this; + + /** The model this query was created from */ + model: Model; // Can't use DocType, causes "Type instantiation is excessively deep" + + /** + * Getter/setter around the current mongoose-specific options for this query + * Below are the current Mongoose-specific options. + */ + mongooseOptions(val?: MongooseQueryOptions): MongooseQueryOptions; + + /** Specifies a `$ne` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + ne(path: K, val: any): this; + ne(val: any): this; + + /** Specifies a `$near` or `$nearSphere` condition */ + near(path: K, val: any): this; + near(val: any): this; + + /** Specifies an `$nin` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + nin(path: K, val: any[]): this; + nin(val: Array): this; + + /** Specifies arguments for an `$nor` condition. */ + nor(array: Array>): this; + + /** Specifies arguments for an `$or` condition. */ + or(array: Array>): this; + + /** + * Make this query throw an error if no documents match the given `filter`. + * This is handy for integrating with async/await, because `orFail()` saves you + * an extra `if` statement to check if no document was found. + */ + orFail(err?: NativeError | (() => NativeError)): QueryWithHelpers, DocType, THelpers, RawDocType, QueryOp, TInstanceMethods>; + + /** Specifies a `$polygon` condition */ + polygon(path: string, ...coordinatePairs: number[][]): this; + polygon(...coordinatePairs: number[][]): this; + + /** Specifies paths which should be populated with other documents. */ + populate( + path: string | string[], + select?: string | any, + model?: string | Model, + match?: any + ): QueryWithHelpers< + ResultType, + DocType, + THelpers, + RawDocType, + QueryOp, + TInstanceMethods + >; + populate( + options: PopulateOptions | (PopulateOptions | string)[] + ): QueryWithHelpers< + ResultType, + DocType, + THelpers, + RawDocType, + QueryOp, + TInstanceMethods + >; + populate( + path: string | string[], + select?: string | any, + model?: string | Model, + match?: any + ): QueryWithHelpers< + MergePopulatePaths, + DocType, + THelpers, + UnpackedIntersection, + QueryOp, + TInstanceMethods + >; + populate( + options: PopulateOptions | (PopulateOptions | string)[] + ): QueryWithHelpers< + MergePopulatePaths, + DocType, + THelpers, + UnpackedIntersection, + QueryOp, + TInstanceMethods + >; + + /** Add pre middleware to this query instance. Doesn't affect other queries. */ + pre(fn: Function): this; + + /** Add post middleware to this query instance. Doesn't affect other queries. */ + post(fn: Function): this; + + /** Get/set the current projection (AKA fields). Pass `null` to remove the current projection. */ + projection(fields?: ProjectionFields | string): ProjectionFields; + projection(fields: null): null; + projection(): ProjectionFields | null; + + /** Determines the MongoDB nodes from which to read. */ + read(mode: string | mongodb.ReadPreferenceMode, tags?: any[]): this; + + /** Sets the readConcern option for the query. */ + readConcern(level: string): this; + + /** Specifies a `$regex` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + regex(path: K, val: RegExp): this; + regex(val: string | RegExp): this; + + /** + * Declare and/or execute this query as a replaceOne() operation. Same as + * `update()`, except MongoDB will replace the existing document and will + * not accept any [atomic](https://www.mongodb.com/docs/manual/tutorial/model-data-for-atomic-operations/#pattern) operators (`$set`, etc.) + */ + replaceOne( + filter?: FilterQuery, + replacement?: DocType | AnyObject, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** Specifies which document fields to include or exclude (also known as the query "projection") */ + select( + arg: string | string[] | Record + ): QueryWithHelpers< + IfEquals< + RawDocTypeOverride, + {}, + ResultType, + ResultType extends any[] + ? ResultType extends HydratedDocument[] + ? HydratedDocument[] + : RawDocTypeOverride[] + : (ResultType extends HydratedDocument + ? HydratedDocument + : RawDocTypeOverride) | (null extends ResultType ? null : never) + >, + DocType, + THelpers, + IfEquals< + RawDocTypeOverride, + {}, + RawDocType, + RawDocTypeOverride + >, + QueryOp, + TInstanceMethods + >; + + /** Determines if field selection has been made. */ + selected(): boolean; + + /** Determines if exclusive field selection has been made. */ + selectedExclusively(): boolean; + + /** Determines if inclusive field selection has been made. */ + selectedInclusively(): boolean; + + /** + * Sets the [MongoDB session](https://www.mongodb.com/docs/manual/reference/server-sessions/) + * associated with this query. Sessions are how you mark a query as part of a + * [transaction](/docs/transactions.html). + */ + session(session: mongodb.ClientSession | null): this; + + /** + * Adds a `$set` to this query's update without changing the operation. + * This is useful for query middleware so you can add an update regardless + * of whether you use `updateOne()`, `updateMany()`, `findOneAndUpdate()`, etc. + */ + set(path: string | Record, value?: any): this; + + /** Sets query options. Some options only make sense for certain operations. */ + setOptions(options: QueryOptions, overwrite?: boolean): this; + + /** Sets the query conditions to the provided JSON object. */ + setQuery(val: FilterQuery | null): void; + + setUpdate(update: UpdateQuery | UpdateWithAggregationPipeline): void; + + /** Specifies an `$size` query condition. When called with one argument, the most recent path passed to `where()` is used. */ + size(path: K, val: number): this; + size(val: number): this; + + /** Specifies the number of documents to skip. */ + skip(val: number): this; + + /** Specifies a `$slice` projection for an array. */ + slice(path: string, val: number | Array): this; + slice(val: number | Array): this; + + /** Sets the sort order. If an object is passed, values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`. */ + sort( + arg?: string | { [key: string]: SortOrder | { $meta: any } } | [string, SortOrder][] | undefined | null, + options?: { override?: boolean } + ): this; + + /** Sets the tailable option (for use with capped collections). */ + tailable(bool?: boolean, opts?: { + numberOfRetries?: number; + tailableRetryInterval?: number; + }): this; + + /** + * Executes the query returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + */ + then: Promise['then']; + + /** Converts this query to a customized, reusable query constructor with all arguments and options retained. */ + toConstructor(): RetType; + + /** + * Declare and/or execute this query as an updateMany() operation. Same as + * `update()`, except MongoDB will update _all_ documents that match + * `filter` (as opposed to just the first one) regardless of the value of + * the `multi` option. + */ + updateMany( + filter?: FilterQuery, + update?: UpdateQuery | UpdateWithAggregationPipeline, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** + * Declare and/or execute this query as an updateOne() operation. Same as + * `update()`, except it does not support the `multi` or `overwrite` options. + */ + updateOne( + filter?: FilterQuery, + update?: UpdateQuery | UpdateWithAggregationPipeline, + options?: QueryOptions | null + ): QueryWithHelpers; + + /** + * Sets the specified number of `mongod` servers, or tag set of `mongod` servers, + * that must acknowledge this write before this write is considered successful. + */ + w(val: string | number | null): this; + + /** Specifies a path for use with chaining. */ + where(path: string, val?: any): this; + where(obj: object): this; + where(): this; + + /** Defines a `$within` or `$geoWithin` argument for geo-spatial queries. */ + within(val?: any): this; + + /** + * If [`w > 1`](/docs/api/query.html#query_Query-w), the maximum amount of time to + * wait for this write to propagate through the replica set before this + * operation fails. The default is `0`, which means no timeout. + */ + wtimeout(ms: number): this; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/schemaoptions.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/schemaoptions.d.ts new file mode 100644 index 000000000..4df87a806 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/schemaoptions.d.ts @@ -0,0 +1,270 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + interface SchemaTimestampsConfig { + createdAt?: boolean | string; + updatedAt?: boolean | string; + currentTime?: () => (NativeDate | number); + } + + type TypeKeyBaseType = string; + + type DefaultTypeKey = 'type'; + interface SchemaOptions< + DocType = unknown, + TInstanceMethods = {}, + QueryHelpers = {}, + TStaticMethods = {}, + TVirtuals = {}, + THydratedDocumentType = HydratedDocument + > { + /** + * By default, Mongoose's init() function creates all the indexes defined in your model's schema by + * calling Model.createIndexes() after you successfully connect to MongoDB. If you want to disable + * automatic index builds, you can set autoIndex to false. + */ + autoIndex?: boolean; + /** + * Similar to autoIndex, except for automatically creates any Atlas search indexes defined in your + * schema. Unlike autoIndex, this option defaults to false. + */ + autoSearchIndex?: boolean; + /** + * If set to `true`, Mongoose will call Model.createCollection() to create the underlying collection + * in MongoDB if autoCreate is set to true. Calling createCollection() sets the collection's default + * collation based on the collation option and establishes the collection as a capped collection if + * you set the capped schema option. + */ + autoCreate?: boolean; + /** + * By default, mongoose buffers commands when the connection goes down until the driver manages to reconnect. + * To disable buffering, set bufferCommands to false. + */ + bufferCommands?: boolean; + /** + * If bufferCommands is on, this option sets the maximum amount of time Mongoose buffering will wait before + * throwing an error. If not specified, Mongoose will use 10000 (10 seconds). + */ + bufferTimeoutMS?: number; + /** + * Mongoose supports MongoDBs capped collections. To specify the underlying MongoDB collection be capped, set + * the capped option to the maximum size of the collection in bytes. + */ + capped?: boolean | number | { size?: number; max?: number; autoIndexId?: boolean; }; + /** Sets a default collation for every query and aggregation. */ + collation?: mongodb.CollationOptions; + + /** Arbitrary options passed to `createCollection()` */ + collectionOptions?: mongodb.CreateCollectionOptions; + + /** The timeseries option to use when creating the model's collection. */ + timeseries?: mongodb.TimeSeriesCollectionOptions; + + /** The number of seconds after which a document in a timeseries collection expires. */ + expireAfterSeconds?: number; + + /** The time after which a document in a timeseries collection expires. */ + expires?: number | string; + + /** + * Mongoose by default produces a collection name by passing the model name to the utils.toCollectionName + * method. This method pluralizes the name. Set this option if you need a different name for your collection. + */ + collection?: string; + /** + * When you define a [discriminator](/docs/discriminators.html), Mongoose adds a path to your + * schema that stores which discriminator a document is an instance of. By default, Mongoose + * adds an `__t` path, but you can set `discriminatorKey` to overwrite this default. + * + * @default '__t' + */ + discriminatorKey?: string; + + /** + * Option for nested Schemas. + * + * If true, skip building indexes on this schema's path. + * + * @default false + */ + excludeIndexes?: boolean; + /** + * Mongoose assigns each of your schemas an id virtual getter by default which returns the document's _id field + * cast to a string, or in the case of ObjectIds, its hexString. + */ + id?: boolean; + /** + * Mongoose assigns each of your schemas an _id field by default if one is not passed into the Schema + * constructor. The type assigned is an ObjectId to coincide with MongoDB's default behavior. If you + * don't want an _id added to your schema at all, you may disable it using this option. + */ + _id?: boolean; + /** + * Mongoose will, by default, "minimize" schemas by removing empty objects. This behavior can be + * overridden by setting minimize option to false. It will then store empty objects. + */ + minimize?: boolean; + /** + * Optimistic concurrency is a strategy to ensure the document you're updating didn't change between when you + * loaded it using find() or findOne(), and when you update it using save(). Set to `true` to enable + * optimistic concurrency. + */ + optimisticConcurrency?: boolean; + /** + * If `plugin()` called with tags, Mongoose will only apply plugins to schemas that have + * a matching tag in `pluginTags` + */ + pluginTags?: string[]; + /** + * Allows setting query#read options at the schema level, providing us a way to apply default ReadPreferences + * to all queries derived from a model. + */ + read?: string; + /** + * Set a default readConcern for all queries at the schema level + */ + readConcern?: { level: 'local' | 'available' | 'majority' | 'snapshot' | 'linearizable' } + /** Allows setting write concern at the schema level. */ + writeConcern?: WriteConcern; + /** defaults to true. */ + safe?: boolean | { w?: number | string; wtimeout?: number; j?: boolean }; + /** + * The shardKey option is used when we have a sharded MongoDB architecture. Each sharded collection is + * given a shard key which must be present in all insert/update operations. We just need to set this + * schema option to the same shard key and we'll be all set. + */ + shardKey?: Record; + /** + * The strict option, (enabled by default), ensures that values passed to our model constructor that were not + * specified in our schema do not get saved to the db. + */ + strict?: boolean | 'throw'; + /** + * equal to `strict` by default, may be `false`, `true`, or `'throw'`. Sets the default + * [strictQuery](https://mongoosejs.com/docs/guide.html#strictQuery) mode for schemas. + */ + strictQuery?: boolean | 'throw'; + /** Exactly the same as the toObject option but only applies when the document's toJSON method is called. */ + toJSON?: ToObjectOptions; + /** + * Documents have a toObject method which converts the mongoose document into a plain JavaScript object. + * This method accepts a few options. Instead of applying these options on a per-document basis, we may + * declare the options at the schema level and have them applied to all of the schema's documents by + * default. + */ + toObject?: ToObjectOptions; + /** + * By default, if you have an object with key 'type' in your schema, mongoose will interpret it as a + * type declaration. However, for applications like geoJSON, the 'type' property is important. If you want to + * control which key mongoose uses to find type declarations, set the 'typeKey' schema option. + */ + typeKey?: string; + + /** + * By default, documents are automatically validated before they are saved to the database. This is to + * prevent saving an invalid document. If you want to handle validation manually, and be able to save + * objects which don't pass validation, you can set validateBeforeSave to false. + */ + validateBeforeSave?: boolean; + /** + * By default, validation will run on modified and required paths before saving to the database. + * You can choose to have Mongoose only validate modified paths by setting validateModifiedOnly to true. + */ + validateModifiedOnly?: boolean; + /** + * The versionKey is a property set on each document when first created by Mongoose. This keys value + * contains the internal revision of the document. The versionKey option is a string that represents + * the path to use for versioning. The default is '__v'. + * + * @default '__v' + */ + versionKey?: string | boolean; + /** + * By default, Mongoose will automatically select() any populated paths for you, unless you explicitly exclude them. + * + * @default true + */ + selectPopulatedPaths?: boolean; + /** + * skipVersioning allows excluding paths from versioning (i.e., the internal revision will not be + * incremented even if these paths are updated). DO NOT do this unless you know what you're doing. + * For subdocuments, include this on the parent document using the fully qualified path. + */ + skipVersioning?: { [key: string]: boolean; }; + /** + * Validation errors in a single nested schema are reported + * both on the child and on the parent schema. + * Set storeSubdocValidationError to false on the child schema + * to make Mongoose only report the parent error. + */ + storeSubdocValidationError?: boolean; + /** + * The timestamps option tells mongoose to assign createdAt and updatedAt fields to your schema. The type + * assigned is Date. By default, the names of the fields are createdAt and updatedAt. Customize the + * field names by setting timestamps.createdAt and timestamps.updatedAt. + */ + timestamps?: boolean | SchemaTimestampsConfig; + + /** + * Using `save`, `isNew`, and other Mongoose reserved names as schema path names now triggers a warning, not an error. + * You can suppress the warning by setting { suppressReservedKeysWarning: true } schema options. Keep in mind that this + * can break plugins that rely on these reserved names. + */ + suppressReservedKeysWarning?: boolean, + + /** + * Model Statics methods. + */ + statics?: IfEquals< + TStaticMethods, + {}, + { [name: string]: (this: Model, ...args: any[]) => unknown }, + AddThisParameter> + > + + /** + * Document instance methods. + */ + methods?: IfEquals< + TInstanceMethods, + {}, + Record unknown>, + AddThisParameter & AnyObject + > + + /** + * Query helper functions. + */ + query?: IfEquals< + QueryHelpers, + {}, + Record>(this: T, ...args: any) => T>, + QueryHelpers + > + + /** + * Set whether to cast non-array values to arrays. + * @default true + */ + castNonArrays?: boolean; + + /** + * Virtual paths. + */ + virtuals?: SchemaOptionsVirtualsPropertyType, + + /** + * Set to `true` to default to overwriting models with the same name when calling `mongoose.model()`, as opposed to throwing an `OverwriteModelError`. + * @default false + */ + overwriteModels?: boolean; + } + + interface DefaultSchemaOptions { + typeKey: 'type'; + id: true; + _id: true; + timestamps: false; + versionKey: '__v' + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/schematypes.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/schematypes.d.ts new file mode 100644 index 000000000..778b83c7a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/schematypes.d.ts @@ -0,0 +1,498 @@ +declare module 'mongoose' { + + /** The Mongoose Date [SchemaType](/docs/schematypes.html). */ + type Date = Schema.Types.Date; + + /** + * The Mongoose Decimal128 [SchemaType](/docs/schematypes.html). Used for + * declaring paths in your schema that should be + * [128-bit decimal floating points](http://thecodebarbarian.com/a-nodejs-perspective-on-mongodb-34-decimal.html). + * Do not use this to create a new Decimal128 instance, use `mongoose.Types.Decimal128` + * instead. + */ + type Decimal128 = Schema.Types.Decimal128; + + /** + * The Mongoose Mixed [SchemaType](/docs/schematypes.html). Used for + * declaring paths in your schema that Mongoose's change tracking, casting, + * and validation should ignore. + */ + type Mixed = Schema.Types.Mixed; + + /** + * The Mongoose Number [SchemaType](/docs/schematypes.html). Used for + * declaring paths in your schema that Mongoose should cast to numbers. + */ + type Number = Schema.Types.Number; + + /** + * The Mongoose ObjectId [SchemaType](/docs/schematypes.html). Used for + * declaring paths in your schema that should be + * [MongoDB ObjectIds](https://www.mongodb.com/docs/manual/reference/method/ObjectId/). + * Do not use this to create a new ObjectId instance, use `mongoose.Types.ObjectId` + * instead. + */ + type ObjectId = Schema.Types.ObjectId; + + /** The various Mongoose SchemaTypes. */ + const SchemaTypes: typeof Schema.Types; + + type DefaultType = T extends Schema.Types.Mixed ? any : Partial>; + + class SchemaTypeOptions { + type?: + T extends string ? StringSchemaDefinition : + T extends number ? NumberSchemaDefinition : + T extends boolean ? BooleanSchemaDefinition : + T extends NativeDate ? DateSchemaDefinition : + T extends Map ? SchemaDefinition : + T extends Buffer ? SchemaDefinition : + T extends Types.ObjectId ? ObjectIdSchemaDefinition : + T extends Types.ObjectId[] ? AnyArray | AnyArray> : + T extends object[] ? (AnyArray> | AnyArray>> | AnyArray, EnforcedDocType>>) : + T extends string[] ? AnyArray | AnyArray> : + T extends number[] ? AnyArray | AnyArray> : + T extends boolean[] ? AnyArray | AnyArray> : + T extends Function[] ? AnyArray | AnyArray, EnforcedDocType>> : + T | typeof SchemaType | Schema | SchemaDefinition | Function | AnyArray; + + /** Defines a virtual with the given name that gets/sets this path. */ + alias?: string | string[]; + + /** Function or object describing how to validate this schematype. See [validation docs](https://mongoosejs.com/docs/validation.html). */ + validate?: SchemaValidator | AnyArray>; + + /** Allows overriding casting logic for this individual path. If a string, the given string overwrites Mongoose's default cast error message. */ + cast?: string | + boolean | + ((value: any) => T) | + [(value: any) => T, string] | + [((value: any) => T) | null, (value: any, path: string, model: Model, kind: string) => string]; + + /** + * If true, attach a required validator to this path, which ensures this path + * path cannot be set to a nullish value. If a function, Mongoose calls the + * function and only checks for nullish values if the function returns a truthy value. + */ + required?: boolean | ((this: EnforcedDocType) => boolean) | [boolean, string] | [(this: EnforcedDocType) => boolean, string]; + + /** + * The default value for this path. If a function, Mongoose executes the function + * and uses the return value as the default. + */ + default?: DefaultType | ((this: EnforcedDocType, doc: any) => DefaultType) | null; + + /** + * The model that `populate()` should use if populating this path. + */ + ref?: string | Model | ((this: any, doc: any) => string | Model); + + /** + * The path in the document that `populate()` should use to find the model + * to use. + */ + + refPath?: string | ((this: any, doc: any) => string); + + /** + * Whether to include or exclude this path by default when loading documents + * using `find()`, `findOne()`, etc. + */ + select?: boolean | number; + + /** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will + * build an index on this path when the model is compiled. + */ + index?: boolean | IndexDirection | IndexOptions; + + /** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose + * will build a unique index on this path when the + * model is compiled. [The `unique` option is **not** a validator](/docs/validation.html#the-unique-option-is-not-a-validator). + */ + unique?: boolean | number; + + /** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will + * disallow changes to this path once the document is saved to the database for the first time. Read more + * about [immutability in Mongoose here](http://thecodebarbarian.com/whats-new-in-mongoose-5-6-immutable-properties.html). + */ + immutable?: boolean | ((this: any, doc: any) => boolean); + + /** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose will + * build a sparse index on this path. + */ + sparse?: boolean | number; + + /** + * If [truthy](https://masteringjs.io/tutorials/fundamentals/truthy), Mongoose + * will build a text index on this path. + */ + text?: boolean | number | any; + + /** + * Define a transform function for this individual schema type. + * Only called when calling `toJSON()` or `toObject()`. + */ + transform?: (this: any, val: T) => any; + + /** defines a custom getter for this property using [`Object.defineProperty()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty). */ + get?: (value: any, doc?: this) => T | undefined; + + /** defines a custom setter for this property using [`Object.defineProperty()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty). */ + set?: (value: any, priorVal?: T, doc?: this) => any; + + /** array of allowed values for this path. Allowed for strings, numbers, and arrays of strings */ + enum?: Array | ReadonlyArray | { values: Array | ReadonlyArray, message?: string } | { [path: string]: string | number | null }; + + /** The default [subtype](http://bsonspec.org/spec.html) associated with this buffer when it is stored in MongoDB. Only allowed for buffer paths */ + subtype?: number; + + /** The minimum value allowed for this path. Only allowed for numbers and dates. */ + min?: number | NativeDate | [number, string] | [NativeDate, string] | readonly [number, string] | readonly [NativeDate, string]; + + /** The maximum value allowed for this path. Only allowed for numbers and dates. */ + max?: number | NativeDate | [number, string] | [NativeDate, string] | readonly [number, string] | readonly [NativeDate, string]; + + /** Defines a TTL index on this path. Only allowed for dates. */ + expires?: string | number; + + /** If `true`, Mongoose will skip gathering indexes on subpaths. Only allowed for subdocuments and subdocument arrays. */ + excludeIndexes?: boolean; + + /** If set, overrides the child schema's `_id` option. Only allowed for subdocuments and subdocument arrays. */ + _id?: boolean; + + /** If set, specifies the type of this map's values. Mongoose will cast this map's values to the given type. */ + of?: Function | SchemaDefinitionProperty; + + /** If true, uses Mongoose's default `_id` settings. Only allowed for ObjectIds */ + auto?: boolean; + + /** Attaches a validator that succeeds if the data string matches the given regular expression, and fails otherwise. */ + match?: RegExp | [RegExp, string] | readonly [RegExp, string]; + + /** If truthy, Mongoose will add a custom setter that lowercases this string using JavaScript's built-in `String#toLowerCase()`. */ + lowercase?: boolean; + + /** If truthy, Mongoose will add a custom setter that removes leading and trailing whitespace using JavaScript's built-in `String#trim()`. */ + trim?: boolean; + + /** If truthy, Mongoose will add a custom setter that uppercases this string using JavaScript's built-in `String#toUpperCase()`. */ + uppercase?: boolean; + + /** If set, Mongoose will add a custom validator that ensures the given string's `length` is at least the given number. */ + minlength?: number | [number, string] | readonly [number, string]; + + /** If set, Mongoose will add a custom validator that ensures the given string's `length` is at most the given number. */ + maxlength?: number | [number, string] | readonly [number, string]; + + [other: string]: any; + } + + interface Validator { + message?: string | ((props: ValidatorProps) => string); + type?: string; + validator?: ValidatorFunction; + reason?: Error; + } + + type ValidatorFunction = (this: DocType, value: any, validatorProperties?: Validator) => any; + + class SchemaType { + /** SchemaType constructor */ + constructor(path: string, options?: AnyObject, instance?: string); + + /** Get/set the function used to cast arbitrary values to this type. */ + static cast(caster?: Function | boolean): Function; + + static checkRequired(checkRequired?: (v: any) => boolean): (v: any) => boolean; + + /** Sets a default option for this schema type. */ + static set(option: string, value: any): void; + + /** Attaches a getter for all instances of this schema type. */ + static get(getter: (value: any) => any): void; + + /** The class that Mongoose uses internally to instantiate this SchemaType's `options` property. */ + OptionsConstructor: SchemaTypeOptions; + + /** Cast `val` to this schema type. Each class that inherits from schema type should implement this function. */ + cast(val: any, doc: Document, init: boolean, prev?: any, options?: any): any; + + /** Sets a default value for this SchemaType. */ + default(val: any): any; + + /** Adds a getter to this schematype. */ + get(fn: Function): this; + + /** + * Defines this path as immutable. Mongoose prevents you from changing + * immutable paths unless the parent document has [`isNew: true`](/docs/api/document.html#document_Document-isNew). + */ + immutable(bool: boolean): this; + + /** Declares the index options for this schematype. */ + index(options: any): this; + + /** String representation of what type this is, like 'ObjectID' or 'Number' */ + instance: string; + + /** True if this SchemaType has a required validator. False otherwise. */ + isRequired?: boolean; + + /** The options this SchemaType was instantiated with */ + options: AnyObject; + + /** The path to this SchemaType in a Schema. */ + path: string; + + /** + * Set the model that this path refers to. This is the option that [populate](https://mongoosejs.com/docs/populate.html) + * looks at to determine the foreign collection it should query. + */ + ref(ref: string | boolean | Model): this; + + /** + * Adds a required validator to this SchemaType. The validator gets added + * to the front of this SchemaType's validators array using unshift(). + */ + required(required: boolean, message?: string): this; + + /** The schema this SchemaType instance is part of */ + schema: Schema; + + /** Sets default select() behavior for this path. */ + select(val: boolean): this; + + /** Adds a setter to this schematype. */ + set(fn: Function): this; + + /** Declares a sparse index. */ + sparse(bool: boolean): this; + + /** Declares a full text index. */ + text(bool: boolean): this; + + /** Defines a custom function for transforming this path when converting a document to JSON. */ + transform(fn: (value: any) => any): this; + + /** Declares an unique index. */ + unique(bool: boolean): this; + + /** The validators that Mongoose should run to validate properties at this SchemaType's path. */ + validators: Validator[]; + + /** Adds validator(s) for this document path. */ + validate(obj: RegExp | ValidatorFunction | Validator, errorMsg?: string, type?: string): this; + + /** Adds multiple validators for this document path. */ + validateAll(validators: Array | Validator>): this; + + /** Default options for this SchemaType */ + defaultOptions?: Record; + } + + namespace Schema { + namespace Types { + class Array extends SchemaType implements AcceptsDiscriminator { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Array'; + + static options: { castNonArrays: boolean; }; + + discriminator(name: string | number, schema: Schema, value?: string): U; + discriminator(name: string | number, schema: Schema, value?: string): Model; + + /** The schematype embedded in this array */ + caster?: SchemaType; + + /** Default options for this SchemaType */ + defaultOptions: Record; + + /** + * Adds an enum validator if this is an array of strings or numbers. Equivalent to + * `SchemaString.prototype.enum()` or `SchemaNumber.prototype.enum()` + */ + enum(vals: string[] | number[]): this; + } + + class BigInt extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'BigInt'; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Boolean extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Boolean'; + + /** Configure which values get casted to `true`. */ + static convertToTrue: Set; + + /** Configure which values get casted to `false`. */ + static convertToFalse: Set; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Buffer extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Buffer'; + + /** + * Sets the default [subtype](https://studio3t.com/whats-new/best-practices-uuid-mongodb/) + * for this buffer. You can find a [list of allowed subtypes here](http://api.mongodb.com/python/current/api/bson/binary.html). + */ + subtype(subtype: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 128): this; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Date extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Date'; + + /** Declares a TTL index (rounded to the nearest second) for _Date_ types only. */ + expires(when: number | string): this; + + /** Sets a maximum date validator. */ + max(value: NativeDate, message: string): this; + + /** Sets a minimum date validator. */ + min(value: NativeDate, message: string): this; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Decimal128 extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Decimal128'; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class DocumentArray extends SchemaType implements AcceptsDiscriminator { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'DocumentArray'; + + static options: { castNonArrays: boolean; }; + + discriminator(name: string | number, schema: Schema, value?: string): Model; + discriminator(name: string | number, schema: Schema, value?: string): U; + + /** The schema used for documents in this array */ + schema: Schema; + + /** The constructor used for subdocuments in this array */ + caster?: typeof Types.Subdocument; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Map extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Map'; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Mixed extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Mixed'; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Number extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'Number'; + + /** Sets a enum validator */ + enum(vals: number[]): this; + + /** Sets a maximum number validator. */ + max(value: number, message: string): this; + + /** Sets a minimum number validator. */ + min(value: number, message: string): this; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class ObjectId extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'ObjectId'; + + /** Adds an auto-generated ObjectId default if turnOn is true. */ + auto(turnOn: boolean): this; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class Subdocument extends SchemaType implements AcceptsDiscriminator { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: string; + + /** The document's schema */ + schema: Schema; + + /** Default options for this SchemaType */ + defaultOptions: Record; + + discriminator(name: string | number, schema: Schema, value?: string): U; + discriminator(name: string | number, schema: Schema, value?: string): Model; + } + + class String extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'String'; + + /** Adds an enum validator */ + enum(vals: string[] | any): this; + + /** Adds a lowercase [setter](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set). */ + lowercase(shouldApply?: boolean): this; + + /** Sets a regexp validator. */ + match(value: RegExp, message: string): this; + + /** Sets a maximum length validator. */ + maxlength(value: number, message: string): this; + + /** Sets a minimum length validator. */ + minlength(value: number, message: string): this; + + /** Adds a trim [setter](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set). */ + trim(shouldTrim?: boolean): this; + + /** Adds an uppercase [setter](http://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-set). */ + uppercase(shouldApply?: boolean): this; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + + class UUID extends SchemaType { + /** This schema type's name, to defend against minifiers that mangle function names. */ + static schemaName: 'UUID'; + + /** Default options for this SchemaType */ + defaultOptions: Record; + } + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/session.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/session.d.ts new file mode 100644 index 000000000..e7f41f737 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/session.d.ts @@ -0,0 +1,32 @@ +declare module 'mongoose' { + import mongodb = require('mongodb'); + + type ClientSessionOptions = mongodb.ClientSessionOptions; + type ClientSession = mongodb.ClientSession; + + /** + * _Requires MongoDB >= 3.6.0._ Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions) + * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/), + * and [transactions](http://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html). + */ + function startSession(options?: ClientSessionOptions): Promise; + + interface SessionOperation { + /** Sets the session. Useful for [transactions](/docs/transactions.html). */ + session(session: mongodb.ClientSession | null): this; + } + + interface SessionStarter { + + /** + * Starts a [MongoDB session](https://www.mongodb.com/docs/manual/release-notes/3.6/#client-sessions) + * for benefits like causal consistency, [retryable writes](https://www.mongodb.com/docs/manual/core/retryable-writes/), + * and [transactions](http://thecodebarbarian.com/a-node-js-perspective-on-mongodb-4-transactions.html). + */ + startSession(options?: ClientSessionOptions): Promise; + } + + interface SessionOption { + session?: ClientSession | null; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/types.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/types.d.ts new file mode 100644 index 000000000..194917d69 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/types.d.ts @@ -0,0 +1,106 @@ + +declare module 'mongoose' { + import mongodb = require('mongodb'); + import bson = require('bson'); + + class NativeBuffer extends Buffer {} + + namespace Types { + class Array extends global.Array { + /** Pops the array atomically at most one time per document `save()`. */ + $pop(): T; + + /** Atomically shifts the array at most one time per document `save()`. */ + $shift(): T; + + /** Adds values to the array if not already present. */ + addToSet(...args: any[]): any[]; + + isMongooseArray: true; + + /** Pushes items to the array non-atomically. */ + nonAtomicPush(...args: any[]): number; + + /** Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking. */ + push(...args: any[]): number; + + /** + * Pulls items from the array atomically. Equality is determined by casting + * the provided value to an embedded document and comparing using + * [the `Document.equals()` function.](./api/document.html#document_Document-equals) + */ + pull(...args: any[]): this; + + /** + * Alias of [pull](#mongoosearray_MongooseArray-pull) + */ + remove(...args: any[]): this; + + /** Sets the casted `val` at index `i` and marks the array modified. */ + set(index: number, val: T): this; + + /** Atomically shifts the array at most one time per document `save()`. */ + shift(): T; + + /** Returns a native js Array. */ + toObject(options?: ToObjectOptions): any; + toObject(options?: ToObjectOptions): T; + + /** Wraps [`Array#unshift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking. */ + unshift(...args: any[]): number; + } + + class Buffer extends NativeBuffer { + /** Sets the subtype option and marks the buffer modified. */ + subtype(subtype: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 128 | ToObjectOptions): void; + + /** Converts this buffer to its Binary type representation. */ + toObject(subtype?: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 128): mongodb.Binary; + } + + class Decimal128 extends mongodb.Decimal128 { } + + class DocumentArray extends Types.Array, any, T> & T> { + /** DocumentArray constructor */ + constructor(values: AnyObject[]); + + isMongooseDocumentArray: true; + + /** Creates a subdocument casted to this schema. */ + create(obj: any): T extends Types.Subdocument ? T : Types.Subdocument> & T; + + /** Searches array items for the first document with a matching _id. */ + id(id: any): (T extends Types.Subdocument ? T : Types.Subdocument> & T) | null; + + push(...args: (AnyKeys & AnyObject)[]): number; + } + + class Map extends global.Map { + /** Converts a Mongoose map into a vanilla JavaScript map. */ + toObject(options?: ToObjectOptions & { flattenMaps?: boolean }): any; + } + + class ObjectId extends mongodb.ObjectId { + } + + class Subdocument extends Document { + $isSingleNested: true; + + /** Returns the top level document of this sub-document. */ + ownerDocument(): Document; + + /** Returns this sub-documents parent document. */ + parent(): Document; + + /** Returns this sub-documents parent document. */ + $parent(): Document; + } + + class ArraySubdocument extends Subdocument { + /** Returns this sub-documents parent array. */ + parentArray(): Types.DocumentArray; + } + + class UUID extends bson.UUID {} + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/utility.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/utility.d.ts new file mode 100644 index 000000000..016f2c48b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/utility.d.ts @@ -0,0 +1,76 @@ +declare module 'mongoose' { + type IfAny = 0 extends (1 & IFTYPE) ? THENTYPE : ELSETYPE; + type IfUnknown = unknown extends IFTYPE ? THENTYPE : IFTYPE; + + /** + * @summary Removes keys from a type + * @description It helps to exclude keys from a type + * @param {T} T A generic type to be checked. + * @param {K} K Keys from T that are to be excluded from the generic type + * @returns T with the keys in K excluded + */ + type ExcludeKeys = { + [P in keyof T as P extends K ? never : P]: T[P]; + }; + + type Unpacked = T extends (infer U)[] ? + U : + T extends ReadonlyArray ? U : T; + + type UnpackedIntersection = T extends null ? null : T extends (infer A)[] + ? (Omit & U)[] + : keyof U extends never + ? T + : Omit & U; + + type MergeType = Omit & B; + + /** + * @summary Converts Unions to one record "object". + * @description It makes intellisense dialog box easier to read as a single object instead of showing that in multiple object unions. + * @param {T} T The type to be converted. + */ + type FlatRecord = { [K in keyof T]: T[K] }; + + /** + * @summary Checks if a type is "Record" or "any". + * @description It Helps to check if user has provided schema type "EnforcedDocType" + * @param {T} T A generic type to be checked. + * @returns true if {@link T} is Record OR false if {@link T} is of any type. + */ + type IsItRecordAndNotAny = IfEquals ? true : false>; + +/** + * @summary Checks if two types are identical. + * @param {T} T The first type to be compared with {@link U}. + * @param {U} U The seconde type to be compared with {@link T}. + * @param {Y} Y A type to be returned if {@link T} & {@link U} are identical. + * @param {N} N A type to be returned if {@link T} & {@link U} are not identical. + */ +type IfEquals = + (() => G extends T ? 1 : 0) extends + (() => G extends U ? 1 : 0) ? Y : N; + +/** + * @summary Extracts 'this' parameter from a function, if it exists. Otherwise, returns fallback. + * @param {T} T Function type to extract 'this' parameter from. + * @param {F} F Fallback type to return if 'this' parameter does not exist. + */ +type ThisParameter = T extends { (this: infer This): void } + ? This + : F; + +/** + * @summary Decorates all functions in an object with 'this' parameter. + * @param {T} T Object with functions as values to add 'D' parameter to as 'this'. {@link D} + * @param {D} D The type to be added as 'this' parameter to all functions in {@link T}. + */ +type AddThisParameter = { + [K in keyof T]: T[K] extends (...args: infer A) => infer R + ? ThisParameter extends unknown + ? (this: D, ...args: A) => R + : T[K] + : T[K]; +}; + +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/validation.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/validation.d.ts new file mode 100644 index 000000000..488ead7e5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/validation.d.ts @@ -0,0 +1,35 @@ +declare module 'mongoose' { + + type SchemaValidator = RegExp | [RegExp, string] | Function | [Function, string] | ValidateOpts | ValidateOpts[]; + + interface ValidatorProps { + path: string; + fullPath: string; + value: any; + reason?: Error; + } + + interface ValidatorMessageFn { + (props: ValidatorProps): string; + } + + interface ValidateFn { + (value: T, props?: ValidatorProps & Record): boolean; + } + + interface LegacyAsyncValidateFn { + (value: T, done: (result: boolean) => void): void; + } + + interface AsyncValidateFn { + (value: T, props?: ValidatorProps & Record): Promise; + } + + interface ValidateOpts { + msg?: string; + message?: string | ValidatorMessageFn; + type?: string; + validator: ValidateFn | LegacyAsyncValidateFn | AsyncValidateFn; + propsParameter?: boolean; + } +} diff --git a/week-3/04-course-app-hard/node_modules/mongoose/types/virtuals.d.ts b/week-3/04-course-app-hard/node_modules/mongoose/types/virtuals.d.ts new file mode 100644 index 000000000..2ec48a496 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mongoose/types/virtuals.d.ts @@ -0,0 +1,14 @@ +declare module 'mongoose' { + type VirtualPathFunctions = { + get?: TVirtualPathFN; + set?: TVirtualPathFN; + options?: VirtualTypeOptions, DocType>; + }; + + type TVirtualPathFN = + >(this: Document & DocType, value: PathType, virtual: VirtualType, doc: Document & DocType) => TReturn; + + type SchemaOptionsVirtualsPropertyType, TInstanceMethods = {}> = { + [K in keyof VirtualPaths]: VirtualPathFunctions extends true ? DocType : any, VirtualPaths[K], TInstanceMethods> + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mpath/.travis.yml b/week-3/04-course-app-hard/node_modules/mpath/.travis.yml new file mode 100644 index 000000000..9bdf212d6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/.travis.yml @@ -0,0 +1,9 @@ +language: node_js +node_js: + - "4" + - "5" + - "6" + - "7" + - "8" + - "9" + - "10" diff --git a/week-3/04-course-app-hard/node_modules/mpath/History.md b/week-3/04-course-app-hard/node_modules/mpath/History.md new file mode 100644 index 000000000..5235d689d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/History.md @@ -0,0 +1,88 @@ +0.9.0 / 2022-04-17 +================== + * feat: export `stringToParts()` + +0.8.4 / 2021-09-01 +================== + * fix: throw error if `parts` contains an element that isn't a string or number #13 + +0.8.3 / 2020-12-30 +================== + * fix: use var instead of let/const for Node.js 4.x support + +0.8.2 / 2020-12-30 +================== + * fix(stringToParts): fall back to legacy treatment for square brackets if square brackets contents aren't a number Automattic/mongoose#9640 + * chore: add eslint + +0.8.1 / 2020-12-10 +================== + * fix(stringToParts): handle empty string and trailing dot the same way that `split()` does for backwards compat + +0.8.0 / 2020-11-14 +================== + * feat: support square bracket indexing for `get()`, `set()`, `has()`, and `unset()` + +0.7.0 / 2020-03-24 +================== + * BREAKING CHANGE: remove `component.json` #9 [AlexeyGrigorievBoost](https://github.com/AlexeyGrigorievBoost) + +0.6.0 / 2019-05-01 +================== + * feat: support setting dotted paths within nested arrays + +0.5.2 / 2019-04-25 +================== + * fix: avoid using subclassed array constructor when doing `map()` + +0.5.1 / 2018-08-30 +================== + * fix: prevent writing to constructor and prototype as well as __proto__ + +0.5.0 / 2018-08-30 +================== + * BREAKING CHANGE: disallow setting/unsetting __proto__ properties + * feat: re-add support for Node < 4 for this release + +0.4.1 / 2018-04-08 +================== + * fix: allow opting out of weird `$` set behavior re: Automattic/mongoose#6273 + +0.4.0 / 2018-03-27 +================== + * feat: add support for ES6 maps + * BREAKING CHANGE: drop support for Node < 4 + +0.3.0 / 2017-06-05 +================== + * feat: add has() and unset() functions + +0.2.1 / 2013-03-22 +================== + + * test; added for #5 + * fix typo that breaks set #5 [Contra](https://github.com/Contra) + +0.2.0 / 2013-03-15 +================== + + * added; adapter support for set + * added; adapter support for get + * add basic benchmarks + * add support for using module as a component #2 [Contra](https://github.com/Contra) + +0.1.1 / 2012-12-21 +================== + + * added; map support + +0.1.0 / 2012-12-13 +================== + + * added; set('array.property', val, object) support + * added; get('array.property', object) support + +0.0.1 / 2012-11-03 +================== + + * initial release diff --git a/week-3/04-course-app-hard/node_modules/mpath/LICENSE b/week-3/04-course-app-hard/node_modules/mpath/LICENSE new file mode 100644 index 000000000..38c529daa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/LICENSE @@ -0,0 +1,22 @@ +(The MIT License) + +Copyright (c) 2012 [Aaron Heckmann](aaron.heckmann+github@gmail.com) + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/mpath/README.md b/week-3/04-course-app-hard/node_modules/mpath/README.md new file mode 100644 index 000000000..9831dd066 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/README.md @@ -0,0 +1,278 @@ +#mpath + +{G,S}et javascript object values using MongoDB-like path notation. + +###Getting + +```js +var mpath = require('mpath'); + +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.get('comments.1.title', obj) // 'exciting!' +``` + +`mpath.get` supports array property notation as well. + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.get('comments.title', obj) // ['funny', 'exciting!'] +``` + +Array property and indexing syntax, when used together, are very powerful. + +```js +var obj = { + array: [ + { o: { array: [{x: {b: [4,6,8]}}, { y: 10} ] }} + , { o: { array: [{x: {b: [1,2,3]}}, { x: {z: 10 }}, { x: 'Turkey Day' }] }} + , { o: { array: [{x: {b: null }}, { x: { b: [null, 1]}}] }} + , { o: { array: [{x: null }] }} + , { o: { array: [{y: 3 }] }} + , { o: { array: [3, 0, null] }} + , { o: { name: 'ha' }} + ]; +} + +var found = mpath.get('array.o.array.x.b.1', obj); + +console.log(found); // prints.. + + [ [6, undefined] + , [2, undefined, undefined] + , [null, 1] + , [null] + , [undefined] + , [undefined, undefined, undefined] + , undefined + ] + +``` + +#####Field selection rules: + +The following rules are iteratively applied to each `segment` in the passed `path`. For example: + +```js +var path = 'one.two.14'; // path +'one' // segment 0 +'two' // segment 1 +14 // segment 2 +``` + +- 1) when value of the segment parent is not an array, return the value of `parent.segment` +- 2) when value of the segment parent is an array + - a) if the segment is an integer, replace the parent array with the value at `parent[segment]` + - b) if not an integer, keep the array but replace each array `item` with the value returned from calling `get(remainingSegments, item)` or undefined if falsey. + +#####Maps + +`mpath.get` also accepts an optional `map` argument which receives each individual found value. The value returned from the `map` function will be used in the original found values place. + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.get('comments.title', obj, function (val) { + return 'funny' == val + ? 'amusing' + : val; +}); +// ['amusing', 'exciting!'] +``` + +###Setting + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.set('comments.1.title', 'hilarious', obj) +console.log(obj.comments[1].title) // 'hilarious' +``` + +`mpath.set` supports the same array property notation as `mpath.get`. + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.set('comments.title', ['hilarious', 'fruity'], obj); + +console.log(obj); // prints.. + + { comments: [ + { title: 'hilarious' }, + { title: 'fruity' } + ]} +``` + +Array property and indexing syntax can be used together also when setting. + +```js +var obj = { + array: [ + { o: { array: [{x: {b: [4,6,8]}}, { y: 10} ] }} + , { o: { array: [{x: {b: [1,2,3]}}, { x: {z: 10 }}, { x: 'Turkey Day' }] }} + , { o: { array: [{x: {b: null }}, { x: { b: [null, 1]}}] }} + , { o: { array: [{x: null }] }} + , { o: { array: [{y: 3 }] }} + , { o: { array: [3, 0, null] }} + , { o: { name: 'ha' }} + ] +} + +mpath.set('array.1.o', 'this was changed', obj); + +console.log(require('util').inspect(obj, false, 1000)); // prints.. + +{ + array: [ + { o: { array: [{x: {b: [4,6,8]}}, { y: 10} ] }} + , { o: 'this was changed' } + , { o: { array: [{x: {b: null }}, { x: { b: [null, 1]}}] }} + , { o: { array: [{x: null }] }} + , { o: { array: [{y: 3 }] }} + , { o: { array: [3, 0, null] }} + , { o: { name: 'ha' }} + ]; +} + +mpath.set('array.o.array.x', 'this was changed too', obj); + +console.log(require('util').inspect(obj, false, 1000)); // prints.. + +{ + array: [ + { o: { array: [{x: 'this was changed too'}, { y: 10, x: 'this was changed too'} ] }} + , { o: 'this was changed' } + , { o: { array: [{x: 'this was changed too'}, { x: 'this was changed too'}] }} + , { o: { array: [{x: 'this was changed too'}] }} + , { o: { array: [{x: 'this was changed too', y: 3 }] }} + , { o: { array: [3, 0, null] }} + , { o: { name: 'ha' }} + ]; +} +``` + +####Setting arrays + +By default, setting a property within an array to another array results in each element of the new array being set to the item in the destination array at the matching index. An example is helpful. + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.set('comments.title', ['hilarious', 'fruity'], obj); + +console.log(obj); // prints.. + + { comments: [ + { title: 'hilarious' }, + { title: 'fruity' } + ]} +``` + +If we do not desire this destructuring-like assignment behavior we may instead specify the `$` operator in the path being set to force the array to be copied directly. + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.set('comments.$.title', ['hilarious', 'fruity'], obj); + +console.log(obj); // prints.. + + { comments: [ + { title: ['hilarious', 'fruity'] }, + { title: ['hilarious', 'fruity'] } + ]} +``` + +####Field assignment rules + +The rules utilized mirror those used on `mpath.get`, meaning we can take values returned from `mpath.get`, update them, and reassign them using `mpath.set`. Note that setting nested arrays of arrays can get unweildy quickly. Check out the [tests](https://github.com/aheckmann/mpath/blob/master/test/index.js) for more extreme examples. + +#####Maps + +`mpath.set` also accepts an optional `map` argument which receives each individual value being set. The value returned from the `map` function will be used in the original values place. + +```js +var obj = { + comments: [ + { title: 'funny' }, + { title: 'exciting!' } + ] +} + +mpath.set('comments.title', ['hilarious', 'fruity'], obj, function (val) { + return val.length; +}); + +console.log(obj); // prints.. + + { comments: [ + { title: 9 }, + { title: 6 } + ]} +``` + +### Custom object types + +Sometimes you may want to enact the same functionality on custom object types that store all their real data internally, say for an ODM type object. No fear, `mpath` has you covered. Simply pass the name of the property being used to store the internal data and it will be traversed instead: + +```js +var mpath = require('mpath'); + +var obj = { + comments: [ + { title: 'exciting!', _doc: { title: 'great!' }} + ] +} + +mpath.get('comments.0.title', obj, '_doc') // 'great!' +mpath.set('comments.0.title', 'nov 3rd', obj, '_doc') +mpath.get('comments.0.title', obj, '_doc') // 'nov 3rd' +mpath.get('comments.0.title', obj) // 'exciting' +``` + +When used with a `map`, the `map` argument comes last. + +```js +mpath.get(path, obj, '_doc', map); +mpath.set(path, val, obj, '_doc', map); +``` + +[LICENSE](https://github.com/aheckmann/mpath/blob/master/LICENSE) + diff --git a/week-3/04-course-app-hard/node_modules/mpath/SECURITY.md b/week-3/04-course-app-hard/node_modules/mpath/SECURITY.md new file mode 100644 index 000000000..1c916a34f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/SECURITY.md @@ -0,0 +1,5 @@ +# Reporting a Vulnerability + +Please report suspected security vulnerabilities to val [at] karpov [dot] io. +You will receive a response from us within 72 hours. +If the issue is confirmed, we will release a patch as soon as possible depending on complexity. diff --git a/week-3/04-course-app-hard/node_modules/mpath/index.js b/week-3/04-course-app-hard/node_modules/mpath/index.js new file mode 100644 index 000000000..47c17cdc8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/index.js @@ -0,0 +1,3 @@ +'use strict'; + +module.exports = exports = require('./lib'); diff --git a/week-3/04-course-app-hard/node_modules/mpath/lib/index.js b/week-3/04-course-app-hard/node_modules/mpath/lib/index.js new file mode 100644 index 000000000..3f21cdc8d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/lib/index.js @@ -0,0 +1,336 @@ +/* eslint strict:off */ +/* eslint no-var: off */ +/* eslint no-redeclare: off */ + +var stringToParts = require('./stringToParts'); + +// These properties are special and can open client libraries to security +// issues +var ignoreProperties = ['__proto__', 'constructor', 'prototype']; + +/** + * Returns the value of object `o` at the given `path`. + * + * ####Example: + * + * var obj = { + * comments: [ + * { title: 'exciting!', _doc: { title: 'great!' }} + * , { title: 'number dos' } + * ] + * } + * + * mpath.get('comments.0.title', o) // 'exciting!' + * mpath.get('comments.0.title', o, '_doc') // 'great!' + * mpath.get('comments.title', o) // ['exciting!', 'number dos'] + * + * // summary + * mpath.get(path, o) + * mpath.get(path, o, special) + * mpath.get(path, o, map) + * mpath.get(path, o, special, map) + * + * @param {String} path + * @param {Object} o + * @param {String} [special] When this property name is present on any object in the path, walking will continue on the value of this property. + * @param {Function} [map] Optional function which receives each individual found value. The value returned from `map` is used in the original values place. + */ + +exports.get = function(path, o, special, map) { + var lookup; + + if ('function' == typeof special) { + if (special.length < 2) { + map = special; + special = undefined; + } else { + lookup = special; + special = undefined; + } + } + + map || (map = K); + + var parts = 'string' == typeof path + ? stringToParts(path) + : path; + + if (!Array.isArray(parts)) { + throw new TypeError('Invalid `path`. Must be either string or array'); + } + + var obj = o, + part; + + for (var i = 0; i < parts.length; ++i) { + part = parts[i]; + if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') { + throw new TypeError('Each segment of path to `get()` must be a string or number, got ' + typeof parts[i]); + } + + if (Array.isArray(obj) && !/^\d+$/.test(part)) { + // reading a property from the array items + var paths = parts.slice(i); + + // Need to `concat()` to avoid `map()` calling a constructor of an array + // subclass + return [].concat(obj).map(function(item) { + return item + ? exports.get(paths, item, special || lookup, map) + : map(undefined); + }); + } + + if (lookup) { + obj = lookup(obj, part); + } else { + var _from = special && obj[special] ? obj[special] : obj; + obj = _from instanceof Map ? + _from.get(part) : + _from[part]; + } + + if (!obj) return map(obj); + } + + return map(obj); +}; + +/** + * Returns true if `in` returns true for every piece of the path + * + * @param {String} path + * @param {Object} o + */ + +exports.has = function(path, o) { + var parts = typeof path === 'string' ? + stringToParts(path) : + path; + + if (!Array.isArray(parts)) { + throw new TypeError('Invalid `path`. Must be either string or array'); + } + + var len = parts.length; + var cur = o; + for (var i = 0; i < len; ++i) { + if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') { + throw new TypeError('Each segment of path to `has()` must be a string or number, got ' + typeof parts[i]); + } + if (cur == null || typeof cur !== 'object' || !(parts[i] in cur)) { + return false; + } + cur = cur[parts[i]]; + } + + return true; +}; + +/** + * Deletes the last piece of `path` + * + * @param {String} path + * @param {Object} o + */ + +exports.unset = function(path, o) { + var parts = typeof path === 'string' ? + stringToParts(path) : + path; + + if (!Array.isArray(parts)) { + throw new TypeError('Invalid `path`. Must be either string or array'); + } + + var len = parts.length; + var cur = o; + for (var i = 0; i < len; ++i) { + if (cur == null || typeof cur !== 'object' || !(parts[i] in cur)) { + return false; + } + if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') { + throw new TypeError('Each segment of path to `unset()` must be a string or number, got ' + typeof parts[i]); + } + // Disallow any updates to __proto__ or special properties. + if (ignoreProperties.indexOf(parts[i]) !== -1) { + return false; + } + if (i === len - 1) { + delete cur[parts[i]]; + return true; + } + cur = cur instanceof Map ? cur.get(parts[i]) : cur[parts[i]]; + } + + return true; +}; + +/** + * Sets the `val` at the given `path` of object `o`. + * + * @param {String} path + * @param {Anything} val + * @param {Object} o + * @param {String} [special] When this property name is present on any object in the path, walking will continue on the value of this property. + * @param {Function} [map] Optional function which is passed each individual value before setting it. The value returned from `map` is used in the original values place. + */ + +exports.set = function(path, val, o, special, map, _copying) { + var lookup; + + if ('function' == typeof special) { + if (special.length < 2) { + map = special; + special = undefined; + } else { + lookup = special; + special = undefined; + } + } + + map || (map = K); + + var parts = 'string' == typeof path + ? stringToParts(path) + : path; + + if (!Array.isArray(parts)) { + throw new TypeError('Invalid `path`. Must be either string or array'); + } + + if (null == o) return; + + for (var i = 0; i < parts.length; ++i) { + if (typeof parts[i] !== 'string' && typeof parts[i] !== 'number') { + throw new TypeError('Each segment of path to `set()` must be a string or number, got ' + typeof parts[i]); + } + // Silently ignore any updates to `__proto__`, these are potentially + // dangerous if using mpath with unsanitized data. + if (ignoreProperties.indexOf(parts[i]) !== -1) { + return; + } + } + + // the existance of $ in a path tells us if the user desires + // the copying of an array instead of setting each value of + // the array to the one by one to matching positions of the + // current array. Unless the user explicitly opted out by passing + // false, see Automattic/mongoose#6273 + var copy = _copying || (/\$/.test(path) && _copying !== false), + obj = o, + part; + + for (var i = 0, len = parts.length - 1; i < len; ++i) { + part = parts[i]; + + if ('$' == part) { + if (i == len - 1) { + break; + } else { + continue; + } + } + + if (Array.isArray(obj) && !/^\d+$/.test(part)) { + var paths = parts.slice(i); + if (!copy && Array.isArray(val)) { + for (var j = 0; j < obj.length && j < val.length; ++j) { + // assignment of single values of array + exports.set(paths, val[j], obj[j], special || lookup, map, copy); + } + } else { + for (var j = 0; j < obj.length; ++j) { + // assignment of entire value + exports.set(paths, val, obj[j], special || lookup, map, copy); + } + } + return; + } + + if (lookup) { + obj = lookup(obj, part); + } else { + var _to = special && obj[special] ? obj[special] : obj; + obj = _to instanceof Map ? + _to.get(part) : + _to[part]; + } + + if (!obj) return; + } + + // process the last property of the path + + part = parts[len]; + + // use the special property if exists + if (special && obj[special]) { + obj = obj[special]; + } + + // set the value on the last branch + if (Array.isArray(obj) && !/^\d+$/.test(part)) { + if (!copy && Array.isArray(val)) { + _setArray(obj, val, part, lookup, special, map); + } else { + for (var j = 0; j < obj.length; ++j) { + var item = obj[j]; + if (item) { + if (lookup) { + lookup(item, part, map(val)); + } else { + if (item[special]) item = item[special]; + item[part] = map(val); + } + } + } + } + } else { + if (lookup) { + lookup(obj, part, map(val)); + } else if (obj instanceof Map) { + obj.set(part, map(val)); + } else { + obj[part] = map(val); + } + } +}; + +/*! + * Split a string path into components delimited by '.' or + * '[\d+]' + * + * #### Example: + * stringToParts('foo[0].bar.1'); // ['foo', '0', 'bar', '1'] + */ + +exports.stringToParts = stringToParts; + +/*! + * Recursively set nested arrays + */ + +function _setArray(obj, val, part, lookup, special, map) { + for (var item, j = 0; j < obj.length && j < val.length; ++j) { + item = obj[j]; + if (Array.isArray(item) && Array.isArray(val[j])) { + _setArray(item, val[j], part, lookup, special, map); + } else if (item) { + if (lookup) { + lookup(item, part, map(val[j])); + } else { + if (item[special]) item = item[special]; + item[part] = map(val[j]); + } + } + } +} + +/*! + * Returns the value passed to it. + */ + +function K(v) { + return v; +} diff --git a/week-3/04-course-app-hard/node_modules/mpath/lib/stringToParts.js b/week-3/04-course-app-hard/node_modules/mpath/lib/stringToParts.js new file mode 100644 index 000000000..f70f33334 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/lib/stringToParts.js @@ -0,0 +1,48 @@ +'use strict'; + +module.exports = function stringToParts(str) { + const result = []; + + let curPropertyName = ''; + let state = 'DEFAULT'; + for (let i = 0; i < str.length; ++i) { + // Fall back to treating as property name rather than bracket notation if + // square brackets contains something other than a number. + if (state === 'IN_SQUARE_BRACKETS' && !/\d/.test(str[i]) && str[i] !== ']') { + state = 'DEFAULT'; + curPropertyName = result[result.length - 1] + '[' + curPropertyName; + result.splice(result.length - 1, 1); + } + + if (str[i] === '[') { + if (state !== 'IMMEDIATELY_AFTER_SQUARE_BRACKETS') { + result.push(curPropertyName); + curPropertyName = ''; + } + state = 'IN_SQUARE_BRACKETS'; + } else if (str[i] === ']') { + if (state === 'IN_SQUARE_BRACKETS') { + state = 'IMMEDIATELY_AFTER_SQUARE_BRACKETS'; + result.push(curPropertyName); + curPropertyName = ''; + } else { + state = 'DEFAULT'; + curPropertyName += str[i]; + } + } else if (str[i] === '.') { + if (state !== 'IMMEDIATELY_AFTER_SQUARE_BRACKETS') { + result.push(curPropertyName); + curPropertyName = ''; + } + state = 'DEFAULT'; + } else { + curPropertyName += str[i]; + } + } + + if (state !== 'IMMEDIATELY_AFTER_SQUARE_BRACKETS') { + result.push(curPropertyName); + } + + return result; +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mpath/package.json b/week-3/04-course-app-hard/node_modules/mpath/package.json new file mode 100644 index 000000000..6d1242d4e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/package.json @@ -0,0 +1,144 @@ +{ + "name": "mpath", + "version": "0.9.0", + "description": "{G,S}et object values using MongoDB-like path notation", + "main": "index.js", + "scripts": { + "lint": "eslint .", + "test": "mocha test/*" + }, + "engines": { + "node": ">=4.0.0" + }, + "repository": "git://github.com/aheckmann/mpath.git", + "keywords": [ + "mongodb", + "path", + "get", + "set" + ], + "author": "Aaron Heckmann ", + "license": "MIT", + "devDependencies": { + "mocha": "5.x", + "benchmark": "~1.0.0", + "eslint": "7.16.0" + }, + "eslintConfig": { + "extends": [ + "eslint:recommended" + ], + "parserOptions": { + "ecmaVersion": 2015 + }, + "env": { + "node": true, + "es6": true + }, + "rules": { + "comma-style": "error", + "indent": [ + "error", + 2, + { + "SwitchCase": 1, + "VariableDeclarator": 2 + } + ], + "keyword-spacing": "error", + "no-whitespace-before-property": "error", + "no-buffer-constructor": "warn", + "no-console": "off", + "no-multi-spaces": "error", + "no-constant-condition": "off", + "func-call-spacing": "error", + "no-trailing-spaces": "error", + "no-undef": "error", + "no-unneeded-ternary": "error", + "no-const-assign": "error", + "no-useless-rename": "error", + "no-dupe-keys": "error", + "space-in-parens": [ + "error", + "never" + ], + "spaced-comment": [ + "error", + "always", + { + "block": { + "markers": [ + "!" + ], + "balanced": true + } + } + ], + "key-spacing": [ + "error", + { + "beforeColon": false, + "afterColon": true + } + ], + "comma-spacing": [ + "error", + { + "before": false, + "after": true + } + ], + "array-bracket-spacing": 1, + "arrow-spacing": [ + "error", + { + "before": true, + "after": true + } + ], + "object-curly-spacing": [ + "error", + "always" + ], + "comma-dangle": [ + "error", + "never" + ], + "no-unreachable": "error", + "quotes": [ + "error", + "single" + ], + "quote-props": [ + "error", + "as-needed" + ], + "semi": "error", + "no-extra-semi": "error", + "semi-spacing": "error", + "no-spaced-func": "error", + "no-throw-literal": "error", + "space-before-blocks": "error", + "space-before-function-paren": [ + "error", + "never" + ], + "space-infix-ops": "error", + "space-unary-ops": "error", + "no-var": "warn", + "prefer-const": "warn", + "strict": [ + "error", + "global" + ], + "no-restricted-globals": [ + "error", + { + "name": "context", + "message": "Don't use Mocha's global context" + } + ], + "no-prototype-builtins": "off" + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/mpath/test/.eslintrc.yml b/week-3/04-course-app-hard/node_modules/mpath/test/.eslintrc.yml new file mode 100644 index 000000000..c0c68038f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/test/.eslintrc.yml @@ -0,0 +1,4 @@ +env: + mocha: true +rules: + no-unused-vars: off \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mpath/test/index.js b/week-3/04-course-app-hard/node_modules/mpath/test/index.js new file mode 100644 index 000000000..ce07b1989 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/test/index.js @@ -0,0 +1,1879 @@ +'use strict'; + +/** + * Test dependencies. + */ + +const mpath = require('../'); +const assert = require('assert'); + +/** + * logging helper + */ + +function log(o) { + console.log(); + console.log(require('util').inspect(o, false, 1000)); +} + +/** + * special path for override tests + */ + +const special = '_doc'; + +/** + * Tests + */ + +describe('mpath', function() { + + /** + * test doc creator + */ + + function doc() { + const o = { first: { second: { third: [3, { name: 'aaron' }, 9] } } }; + o.comments = [ + { name: 'one' }, + { name: 'two', _doc: { name: '2' } }, + { name: 'three', + comments: [{}, { comments: [{ val: 'twoo' }] }], + _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } } + ]; + o.name = 'jiro'; + o.array = [ + { o: { array: [{ x: { b: [4, 6, 8] } }, { y: 10 }] } }, + { o: { array: [{ x: { b: [1, 2, 3] } }, { x: { z: 10 } }, { x: { b: 'hi' } }] } }, + { o: { array: [{ x: { b: null } }, { x: { b: [null, 1] } }] } }, + { o: { array: [{ x: null }] } }, + { o: { array: [{ y: 3 }] } }, + { o: { array: [3, 0, null] } }, + { o: { name: 'ha' } } + ]; + o.arr = [ + { arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true } + ]; + return o; + } + + describe('get', function() { + const o = doc(); + + it('`path` must be a string or array', function(done) { + assert.throws(function() { + mpath.get({}, o); + }, /Must be either string or array/); + assert.throws(function() { + mpath.get(4, o); + }, /Must be either string or array/); + assert.throws(function() { + mpath.get(function() {}, o); + }, /Must be either string or array/); + assert.throws(function() { + mpath.get(/asdf/, o); + }, /Must be either string or array/); + assert.throws(function() { + mpath.get(Math, o); + }, /Must be either string or array/); + assert.throws(function() { + mpath.get(Buffer, o); + }, /Must be either string or array/); + assert.doesNotThrow(function() { + mpath.get('string', o); + }); + assert.doesNotThrow(function() { + mpath.get([], o); + }); + done(); + }); + + describe('without `special`', function() { + it('works', function(done) { + assert.equal('jiro', mpath.get('name', o)); + + assert.deepEqual( + { second: { third: [3, { name: 'aaron' }, 9] } } + , mpath.get('first', o) + ); + + assert.deepEqual( + { third: [3, { name: 'aaron' }, 9] } + , mpath.get('first.second', o) + ); + + assert.deepEqual( + [3, { name: 'aaron' }, 9] + , mpath.get('first.second.third', o) + ); + + assert.deepEqual( + 3 + , mpath.get('first.second.third.0', o) + ); + + assert.deepEqual( + 9 + , mpath.get('first.second.third.2', o) + ); + + assert.deepEqual( + { name: 'aaron' } + , mpath.get('first.second.third.1', o) + ); + + assert.deepEqual( + 'aaron' + , mpath.get('first.second.third.1.name', o) + ); + + assert.deepEqual([ + { name: 'one' }, + { name: 'two', _doc: { name: '2' } }, + { name: 'three', + comments: [{}, { comments: [{ val: 'twoo' }] }], + _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }], + mpath.get('comments', o)); + + assert.deepEqual({ name: 'one' }, mpath.get('comments.0', o)); + assert.deepEqual('one', mpath.get('comments.0.name', o)); + assert.deepEqual('two', mpath.get('comments.1.name', o)); + assert.deepEqual('three', mpath.get('comments.2.name', o)); + + assert.deepEqual([{}, { comments: [{ val: 'twoo' }] }] + , mpath.get('comments.2.comments', o)); + + assert.deepEqual({ comments: [{ val: 'twoo' }] } + , mpath.get('comments.2.comments.1', o)); + + assert.deepEqual('twoo', mpath.get('comments.2.comments.1.comments.0.val', o)); + + done(); + }); + + it('handles array.property dot-notation', function(done) { + assert.deepEqual( + ['one', 'two', 'three'] + , mpath.get('comments.name', o) + ); + done(); + }); + + it('handles array.array notation', function(done) { + assert.deepEqual( + [undefined, undefined, [{}, { comments: [{ val: 'twoo' }] }]] + , mpath.get('comments.comments', o) + ); + done(); + }); + + it('handles prop.prop.prop.arrayProperty notation', function(done) { + assert.deepEqual( + [undefined, 'aaron', undefined] + , mpath.get('first.second.third.name', o) + ); + assert.deepEqual( + [1, 'aaron', 1] + , mpath.get('first.second.third.name', o, function(v) { + return undefined === v ? 1 : v; + }) + ); + done(); + }); + + it('handles array.prop.array', function(done) { + assert.deepEqual( + [[{ x: { b: [4, 6, 8] } }, { y: 10 }], + [{ x: { b: [1, 2, 3] } }, { x: { z: 10 } }, { x: { b: 'hi' } }], + [{ x: { b: null } }, { x: { b: [null, 1] } }], + [{ x: null }], + [{ y: 3 }], + [3, 0, null], + undefined + ] + , mpath.get('array.o.array', o) + ); + done(); + }); + + it('handles array.prop.array.index', function(done) { + assert.deepEqual( + [{ x: { b: [4, 6, 8] } }, + { x: { b: [1, 2, 3] } }, + { x: { b: null } }, + { x: null }, + { y: 3 }, + 3, + undefined + ] + , mpath.get('array.o.array.0', o) + ); + done(); + }); + + it('handles array.prop.array.index.prop', function(done) { + assert.deepEqual( + [{ b: [4, 6, 8] }, + { b: [1, 2, 3] }, + { b: null }, + null, + undefined, + undefined, + undefined + ] + , mpath.get('array.o.array.0.x', o) + ); + done(); + }); + + it('handles array.prop.array.prop', function(done) { + assert.deepEqual( + [[undefined, 10], + [undefined, undefined, undefined], + [undefined, undefined], + [undefined], + [3], + [undefined, undefined, undefined], + undefined + ] + , mpath.get('array.o.array.y', o) + ); + assert.deepEqual( + [[{ b: [4, 6, 8] }, undefined], + [{ b: [1, 2, 3] }, { z: 10 }, { b: 'hi' }], + [{ b: null }, { b: [null, 1] }], + [null], + [undefined], + [undefined, undefined, undefined], + undefined + ] + , mpath.get('array.o.array.x', o) + ); + done(); + }); + + it('handles array.prop.array.prop.prop', function(done) { + assert.deepEqual( + [[[4, 6, 8], undefined], + [[1, 2, 3], undefined, 'hi'], + [null, [null, 1]], + [null], + [undefined], + [undefined, undefined, undefined], + undefined + ] + , mpath.get('array.o.array.x.b', o) + ); + done(); + }); + + it('handles array.prop.array.prop.prop.index', function(done) { + assert.deepEqual( + [[6, undefined], + [2, undefined, 'i'], // undocumented feature (string indexing) + [null, 1], + [null], + [undefined], + [undefined, undefined, undefined], + undefined + ] + , mpath.get('array.o.array.x.b.1', o) + ); + assert.deepEqual( + [[6, 0], + [2, 0, 'i'], // undocumented feature (string indexing) + [null, 1], + [null], + [0], + [0, 0, 0], + 0 + ] + , mpath.get('array.o.array.x.b.1', o, function(v) { + return undefined === v ? 0 : v; + }) + ); + done(); + }); + + it('handles array.index.prop.prop', function(done) { + assert.deepEqual( + [{ x: { b: [1, 2, 3] } }, { x: { z: 10 } }, { x: { b: 'hi' } }] + , mpath.get('array.1.o.array', o) + ); + assert.deepEqual( + ['hi', 'hi', 'hi'] + , mpath.get('array.1.o.array', o, function(v) { + if (Array.isArray(v)) { + return v.map(function(val) { + return 'hi'; + }); + } + return v; + }) + ); + done(); + }); + + it('handles array.array.index', function(done) { + assert.deepEqual( + [{ a: { c: 48 } }, undefined] + , mpath.get('arr.arr.1', o) + ); + assert.deepEqual( + ['woot', undefined] + , mpath.get('arr.arr.1', o, function(v) { + if (v && v.a && v.a.c) return 'woot'; + return v; + }) + ); + done(); + }); + + it('handles array.array.index.prop', function(done) { + assert.deepEqual( + [{ c: 48 }, 'woot'] + , mpath.get('arr.arr.1.a', o, function(v) { + if (undefined === v) return 'woot'; + return v; + }) + ); + assert.deepEqual( + [{ c: 48 }, undefined] + , mpath.get('arr.arr.1.a', o) + ); + mpath.set('arr.arr.1.a', [{ c: 49 }, undefined], o); + assert.deepEqual( + [{ c: 49 }, undefined] + , mpath.get('arr.arr.1.a', o) + ); + mpath.set('arr.arr.1.a', [{ c: 48 }, undefined], o); + done(); + }); + + it('handles array.array.index.prop.prop', function(done) { + assert.deepEqual( + [48, undefined] + , mpath.get('arr.arr.1.a.c', o) + ); + assert.deepEqual( + [48, 'woot'] + , mpath.get('arr.arr.1.a.c', o, function(v) { + if (undefined === v) return 'woot'; + return v; + }) + ); + done(); + }); + + }); + + describe('with `special`', function() { + describe('that is a string', function() { + it('works', function(done) { + assert.equal('jiro', mpath.get('name', o, special)); + + assert.deepEqual( + { second: { third: [3, { name: 'aaron' }, 9] } } + , mpath.get('first', o, special) + ); + + assert.deepEqual( + { third: [3, { name: 'aaron' }, 9] } + , mpath.get('first.second', o, special) + ); + + assert.deepEqual( + [3, { name: 'aaron' }, 9] + , mpath.get('first.second.third', o, special) + ); + + assert.deepEqual( + 3 + , mpath.get('first.second.third.0', o, special) + ); + + assert.deepEqual( + 4 + , mpath.get('first.second.third.0', o, special, function(v) { + return 3 === v ? 4 : v; + }) + ); + + assert.deepEqual( + 9 + , mpath.get('first.second.third.2', o, special) + ); + + assert.deepEqual( + { name: 'aaron' } + , mpath.get('first.second.third.1', o, special) + ); + + assert.deepEqual( + 'aaron' + , mpath.get('first.second.third.1.name', o, special) + ); + + assert.deepEqual([ + { name: 'one' }, + { name: 'two', _doc: { name: '2' } }, + { name: 'three', + comments: [{}, { comments: [{ val: 'twoo' }] }], + _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }], + mpath.get('comments', o, special)); + + assert.deepEqual({ name: 'one' }, mpath.get('comments.0', o, special)); + assert.deepEqual('one', mpath.get('comments.0.name', o, special)); + assert.deepEqual('2', mpath.get('comments.1.name', o, special)); + assert.deepEqual('3', mpath.get('comments.2.name', o, special)); + assert.deepEqual('nice', mpath.get('comments.2.name', o, special, function(v) { + return '3' === v ? 'nice' : v; + })); + + assert.deepEqual([{}, { _doc: { comments: [{ val: 2 }] } }] + , mpath.get('comments.2.comments', o, special)); + + assert.deepEqual({ _doc: { comments: [{ val: 2 }] } } + , mpath.get('comments.2.comments.1', o, special)); + + assert.deepEqual(2, mpath.get('comments.2.comments.1.comments.0.val', o, special)); + done(); + }); + + it('handles array.property dot-notation', function(done) { + assert.deepEqual( + ['one', '2', '3'] + , mpath.get('comments.name', o, special) + ); + assert.deepEqual( + ['one', 2, '3'] + , mpath.get('comments.name', o, special, function(v) { + return '2' === v ? 2 : v; + }) + ); + done(); + }); + + it('handles array.array notation', function(done) { + assert.deepEqual( + [undefined, undefined, [{}, { _doc: { comments: [{ val: 2 }] } }]] + , mpath.get('comments.comments', o, special) + ); + done(); + }); + + it('handles array.array.index.array', function(done) { + assert.deepEqual( + [undefined, undefined, [{ val: 2 }]] + , mpath.get('comments.comments.1.comments', o, special) + ); + done(); + }); + + it('handles array.array.index.array.prop', function(done) { + assert.deepEqual( + [undefined, undefined, [2]] + , mpath.get('comments.comments.1.comments.val', o, special) + ); + assert.deepEqual( + ['nil', 'nil', [2]] + , mpath.get('comments.comments.1.comments.val', o, special, function(v) { + return undefined === v ? 'nil' : v; + }) + ); + done(); + }); + }); + + describe('that is a function', function() { + const special = function(obj, key) { + return obj[key]; + }; + + it('works', function(done) { + assert.equal('jiro', mpath.get('name', o, special)); + + assert.deepEqual( + { second: { third: [3, { name: 'aaron' }, 9] } } + , mpath.get('first', o, special) + ); + + assert.deepEqual( + { third: [3, { name: 'aaron' }, 9] } + , mpath.get('first.second', o, special) + ); + + assert.deepEqual( + [3, { name: 'aaron' }, 9] + , mpath.get('first.second.third', o, special) + ); + + assert.deepEqual( + 3 + , mpath.get('first.second.third.0', o, special) + ); + + assert.deepEqual( + 4 + , mpath.get('first.second.third.0', o, special, function(v) { + return 3 === v ? 4 : v; + }) + ); + + assert.deepEqual( + 9 + , mpath.get('first.second.third.2', o, special) + ); + + assert.deepEqual( + { name: 'aaron' } + , mpath.get('first.second.third.1', o, special) + ); + + assert.deepEqual( + 'aaron' + , mpath.get('first.second.third.1.name', o, special) + ); + + assert.deepEqual([ + { name: 'one' }, + { name: 'two', _doc: { name: '2' } }, + { name: 'three', + comments: [{}, { comments: [{ val: 'twoo' }] }], + _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } }], + mpath.get('comments', o, special)); + + assert.deepEqual({ name: 'one' }, mpath.get('comments.0', o, special)); + assert.deepEqual('one', mpath.get('comments.0.name', o, special)); + assert.deepEqual('two', mpath.get('comments.1.name', o, special)); + assert.deepEqual('three', mpath.get('comments.2.name', o, special)); + assert.deepEqual('nice', mpath.get('comments.2.name', o, special, function(v) { + return 'three' === v ? 'nice' : v; + })); + + assert.deepEqual([{}, { comments: [{ val: 'twoo' }] }] + , mpath.get('comments.2.comments', o, special)); + + assert.deepEqual({ comments: [{ val: 'twoo' }] } + , mpath.get('comments.2.comments.1', o, special)); + + assert.deepEqual('twoo', mpath.get('comments.2.comments.1.comments.0.val', o, special)); + + let overide = false; + assert.deepEqual('twoo', mpath.get('comments.8.comments.1.comments.0.val', o, function(obj, path) { + if (Array.isArray(obj) && 8 == path) { + overide = true; + return obj[2]; + } + return obj[path]; + })); + assert.ok(overide); + + done(); + }); + + it('in combination with map', function(done) { + const special = function(obj, key) { + if (Array.isArray(obj)) return obj[key]; + return obj.mpath; + }; + const map = function(val) { + return 'convert' == val + ? 'mpath' + : val; + }; + const o = { mpath: [{ mpath: 'converse' }, { mpath: 'convert' }] }; + + assert.equal('mpath', mpath.get('something.1.kewl', o, special, map)); + done(); + }); + }); + }); + }); + + describe('set', function() { + it('prevents writing to __proto__', function() { + const obj = {}; + mpath.set('__proto__.x', 'foobar', obj); + assert.ok(!({}.x)); + + mpath.set('constructor.prototype.x', 'foobar', obj); + assert.ok(!({}.x)); + }); + + describe('without `special`', function() { + const o = doc(); + + it('works', function(done) { + mpath.set('name', 'a new val', o, function(v) { + return 'a new val' === v ? 'changed' : v; + }); + assert.deepEqual('changed', o.name); + + mpath.set('name', 'changed', o); + assert.deepEqual('changed', o.name); + + mpath.set('first.second.third', [1, { name: 'x' }, 9], o); + assert.deepEqual([1, { name: 'x' }, 9], o.first.second.third); + + mpath.set('first.second.third.1.name', 'y', o); + assert.deepEqual([1, { name: 'y' }, 9], o.first.second.third); + + mpath.set('comments.1.name', 'ttwwoo', o); + assert.deepEqual({ name: 'ttwwoo', _doc: { name: '2' } }, o.comments[1]); + + mpath.set('comments.2.comments.1.comments.0.expand', 'added', o); + assert.deepEqual( + { val: 'twoo', expand: 'added' } + , o.comments[2].comments[1].comments[0]); + + mpath.set('comments.2.comments.1.comments.2', 'added', o); + assert.equal(3, o.comments[2].comments[1].comments.length); + assert.deepEqual( + { val: 'twoo', expand: 'added' } + , o.comments[2].comments[1].comments[0]); + assert.deepEqual( + undefined + , o.comments[2].comments[1].comments[1]); + assert.deepEqual( + 'added' + , o.comments[2].comments[1].comments[2]); + + done(); + }); + + describe('array.path', function() { + describe('with single non-array value', function() { + it('works', function(done) { + mpath.set('arr.yep', false, o, function(v) { + return false === v ? true : v; + }); + assert.deepEqual([ + { yep: true, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true } + ], o.arr); + + mpath.set('arr.yep', false, o); + + assert.deepEqual([ + { yep: false, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: false } + ], o.arr); + + done(); + }); + }); + describe('with array of values', function() { + it('that are equal in length', function(done) { + mpath.set('arr.yep', ['one', 2], o, function(v) { + return 'one' === v ? 1 : v; + }); + assert.deepEqual([ + { yep: 1, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 2 } + ], o.arr); + mpath.set('arr.yep', ['one', 2], o); + + assert.deepEqual([ + { yep: 'one', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 2 } + ], o.arr); + + done(); + }); + + it('that is less than length', function(done) { + mpath.set('arr.yep', [47], o, function(v) { + return 47 === v ? 4 : v; + }); + assert.deepEqual([ + { yep: 4, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 2 } + ], o.arr); + + mpath.set('arr.yep', [47], o); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 2 } + ], o.arr); + + done(); + }); + + it('that is greater than length', function(done) { + mpath.set('arr.yep', [5, 6, 7], o, function(v) { + return 5 === v ? 'five' : v; + }); + assert.deepEqual([ + { yep: 'five', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 6 } + ], o.arr); + + mpath.set('arr.yep', [5, 6, 7], o); + assert.deepEqual([ + { yep: 5, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 6 } + ], o.arr); + + done(); + }); + }); + }); + + describe('array.$.path', function() { + describe('with single non-array value', function() { + it('copies the value to each item in array', function(done) { + mpath.set('arr.$.yep', { xtra: 'double good' }, o, function(v) { + return v && v.xtra ? 'hi' : v; + }); + assert.deepEqual([ + { yep: 'hi', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 'hi' } + ], o.arr); + + mpath.set('arr.$.yep', { xtra: 'double good' }, o); + assert.deepEqual([ + { yep: { xtra: 'double good' }, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: { xtra: 'double good' } } + ], o.arr); + + done(); + }); + }); + describe('with array of values', function() { + it('copies the value to each item in array', function(done) { + mpath.set('arr.$.yep', [15], o, function(v) { + return v.length === 1 ? [] : v; + }); + assert.deepEqual([ + { yep: [], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: [] } + ], o.arr); + + mpath.set('arr.$.yep', [15], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: [15] } + ], o.arr); + + done(); + }); + }); + }); + + describe('array.index.path', function() { + it('works', function(done) { + mpath.set('arr.1.yep', 0, o, function(v) { + return 0 === v ? 'zero' : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 'zero' } + ], o.arr); + + mpath.set('arr.1.yep', 0, o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + }); + + describe('array.index.array.path', function() { + it('with single value', function(done) { + mpath.set('arr.0.arr.e', 35, o, function(v) { + return 35 === v ? 3 : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 }, e: 3 }, { a: { c: 48 }, e: 3 }, { d: 'yep', e: 3 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.0.arr.e', 35, o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 }, e: 35 }, { a: { c: 48 }, e: 35 }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.0.arr.e', ['a', 'b'], o, function(v) { + return 'a' === v ? 'x' : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 }, e: 'x' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.0.arr.e', ['a', 'b'], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 47 }, e: 'a' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + }); + + describe('array.index.array.path.path', function() { + it('with single value', function(done) { + mpath.set('arr.0.arr.a.b', 36, o, function(v) { + return 36 === v ? 3 : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 3 }, e: 'a' }, { a: { c: 48, b: 3 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.0.arr.a.b', 36, o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 36 }, e: 'a' }, { a: { c: 48, b: 36 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o, function(v) { + return 2 === v ? 'two' : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 1 }, e: 'a' }, { a: { c: 48, b: 'two' }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 1 }, e: 'a' }, { a: { c: 48, b: 2 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + }); + + describe('array.index.array.$.path.path', function() { + it('with single value', function(done) { + mpath.set('arr.0.arr.$.a.b', '$', o, function(v) { + return '$' === v ? 'dolla billz' : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: 'dolla billz' }, e: 'a' }, { a: { c: 48, b: 'dolla billz' }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.0.arr.$.a.b', '$', o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: '$' }, e: 'a' }, { a: { c: 48, b: '$' }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.0.arr.$.a.b', [1], o, function(v) { + return Array.isArray(v) ? {} : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: {} }, e: 'a' }, { a: { c: 48, b: {} }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.0.arr.$.a.b', [1], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: { b: [1] }, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + }); + + describe('array.array.index.path', function() { + it('with single value', function(done) { + mpath.set('arr.arr.0.a', 'single', o, function(v) { + return 'single' === v ? 'double' : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: 'double', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.arr.0.a', 'single', o); + assert.deepEqual([ + { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o, function(v) { + return 4 === v ? 3 : v; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: 3, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: false } + ], o.arr); + + mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: 4, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: false } + ], o.arr); + + done(); + }); + }); + + describe('array.array.$.index.path', function() { + it('with single value', function(done) { + mpath.set('arr.arr.$.0.a', 'singles', o, function(v) { + return 0; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: 0, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.arr.$.0.a', 'singles', o); + assert.deepEqual([ + { yep: [15], arr: [{ a: 'singles', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('$.arr.arr.0.a', 'single', o); + assert.deepEqual([ + { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o, function(v) { + return 'nope'; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: 'nope', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.$.arr.0.a', [4, 8, 15, 16, 23, 42, 108], o); + assert.deepEqual([ + { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + }); + + describe('array.array.path.index', function() { + it('with single value', function(done) { + mpath.set('arr.arr.a.7', 47, o, function(v) { + return 1; + }); + assert.deepEqual([ + { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, 1], e: 'a' }, { a: { c: 48, b: [1], 7: 1 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + mpath.set('arr.arr.a.7', 47, o); + assert.deepEqual([ + { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, 47], e: 'a' }, { a: { c: 48, b: [1], 7: 47 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0 } + ], o.arr); + + done(); + }); + it('with array', function(done) { + o.arr[1].arr = [{ a: [] }, { a: [] }, { a: null }]; + mpath.set('arr.arr.a.7', [[null, 46], [undefined, 'woot']], o); + + const a1 = []; + const a2 = []; + a1[7] = undefined; + a2[7] = 'woot'; + + assert.deepEqual([ + { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, null], e: 'a' }, { a: { c: 48, b: [1], 7: 46 }, e: 'b' }, { d: 'yep', e: 35 }] }, + { yep: 0, arr: [{ a: a1 }, { a: a2 }, { a: null }] } + ], o.arr); + + done(); + }); + }); + + describe('handles array.array.path', function() { + it('with single', function(done) { + o.arr[1].arr = [{}, {}]; + assert.deepEqual([{}, {}], o.arr[1].arr); + o.arr.push({ arr: 'something else' }); + o.arr.push({ arr: ['something else'] }); + o.arr.push({ arr: [[]] }); + o.arr.push({ arr: [5] }); + + const weird = []; + weird.e = 'xmas'; + + // test + mpath.set('arr.arr.e', 47, o, function(v) { + return 'xmas'; + }); + assert.deepEqual([ + { yep: [15], arr: [ + { a: [4, 8, 15, 16, 23, 42, 108, null], e: 'xmas' }, + { a: { c: 48, b: [1], 7: 46 }, e: 'xmas' }, + { d: 'yep', e: 'xmas' } + ] + }, + { yep: 0, arr: [{ e: 'xmas' }, { e: 'xmas' }] }, + { arr: 'something else' }, + { arr: ['something else'] }, + { arr: [weird] }, + { arr: [5] } + ] + , o.arr); + + weird.e = 47; + + mpath.set('arr.arr.e', 47, o); + assert.deepEqual([ + { yep: [15], arr: [ + { a: [4, 8, 15, 16, 23, 42, 108, null], e: 47 }, + { a: { c: 48, b: [1], 7: 46 }, e: 47 }, + { d: 'yep', e: 47 } + ] + }, + { yep: 0, arr: [{ e: 47 }, { e: 47 }] }, + { arr: 'something else' }, + { arr: ['something else'] }, + { arr: [weird] }, + { arr: [5] } + ] + , o.arr); + + done(); + }); + it('with arrays', function(done) { + mpath.set('arr.arr.e', [[1, 2, 3], [4, 5], null, [], [6], [7, 8, 9]], o, function(v) { + return 10; + }); + + const weird = []; + weird.e = 10; + + assert.deepEqual([ + { yep: [15], arr: [ + { a: [4, 8, 15, 16, 23, 42, 108, null], e: 10 }, + { a: { c: 48, b: [1], 7: 46 }, e: 10 }, + { d: 'yep', e: 10 } + ] + }, + { yep: 0, arr: [{ e: 10 }, { e: 10 }] }, + { arr: 'something else' }, + { arr: ['something else'] }, + { arr: [weird] }, + { arr: [5] } + ] + , o.arr); + + mpath.set('arr.arr.e', [[1, 2, 3], [4, 5], null, [], [6], [7, 8, 9]], o); + + weird.e = 6; + + assert.deepEqual([ + { yep: [15], arr: [ + { a: [4, 8, 15, 16, 23, 42, 108, null], e: 1 }, + { a: { c: 48, b: [1], 7: 46 }, e: 2 }, + { d: 'yep', e: 3 } + ] + }, + { yep: 0, arr: [{ e: 4 }, { e: 5 }] }, + { arr: 'something else' }, + { arr: ['something else'] }, + { arr: [weird] }, + { arr: [5] } + ] + , o.arr); + + done(); + }); + }); + }); + + describe('with `special`', function() { + const o = doc(); + + it('works', function(done) { + mpath.set('name', 'chan', o, special, function(v) { + return 'hi'; + }); + assert.deepEqual('hi', o.name); + + mpath.set('name', 'changer', o, special); + assert.deepEqual('changer', o.name); + + mpath.set('first.second.third', [1, { name: 'y' }, 9], o, special); + assert.deepEqual([1, { name: 'y' }, 9], o.first.second.third); + + mpath.set('first.second.third.1.name', 'z', o, special); + assert.deepEqual([1, { name: 'z' }, 9], o.first.second.third); + + mpath.set('comments.1.name', 'ttwwoo', o, special); + assert.deepEqual({ name: 'two', _doc: { name: 'ttwwoo' } }, o.comments[1]); + + mpath.set('comments.2.comments.1.comments.0.expander', 'adder', o, special, function(v) { + return 'super'; + }); + assert.deepEqual( + { val: 2, expander: 'super' } + , o.comments[2]._doc.comments[1]._doc.comments[0]); + + mpath.set('comments.2.comments.1.comments.0.expander', 'adder', o, special); + assert.deepEqual( + { val: 2, expander: 'adder' } + , o.comments[2]._doc.comments[1]._doc.comments[0]); + + mpath.set('comments.2.comments.1.comments.2', 'set', o, special); + assert.equal(3, o.comments[2]._doc.comments[1]._doc.comments.length); + assert.deepEqual( + { val: 2, expander: 'adder' } + , o.comments[2]._doc.comments[1]._doc.comments[0]); + assert.deepEqual( + undefined + , o.comments[2]._doc.comments[1]._doc.comments[1]); + assert.deepEqual( + 'set' + , o.comments[2]._doc.comments[1]._doc.comments[2]); + done(); + }); + + describe('array.path', function() { + describe('with single non-array value', function() { + it('works', function(done) { + o.arr[1]._doc = { special: true }; + + mpath.set('arr.yep', false, o, special, function(v) { + return 'yes'; + }); + assert.deepEqual([ + { yep: 'yes', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true, _doc: { special: true, yep: 'yes' } } + ], o.arr); + + mpath.set('arr.yep', false, o, special); + assert.deepEqual([ + { yep: false, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true, _doc: { special: true, yep: false } } + ], o.arr); + + done(); + }); + }); + describe('with array of values', function() { + it('that are equal in length', function(done) { + mpath.set('arr.yep', ['one', 2], o, special, function(v) { + return 2 === v ? 20 : v; + }); + assert.deepEqual([ + { yep: 'one', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true, _doc: { special: true, yep: 20 } } + ], o.arr); + + mpath.set('arr.yep', ['one', 2], o, special); + assert.deepEqual([ + { yep: 'one', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true, _doc: { special: true, yep: 2 } } + ], o.arr); + + done(); + }); + + it('that is less than length', function(done) { + mpath.set('arr.yep', [47], o, special, function(v) { + return 80; + }); + assert.deepEqual([ + { yep: 80, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true, _doc: { special: true, yep: 2 } } + ], o.arr); + + mpath.set('arr.yep', [47], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }, + { yep: true, _doc: { special: true, yep: 2 } } + ], o.arr); + + // add _doc to first element + o.arr[0]._doc = { yep: 46, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] }; + + mpath.set('arr.yep', [20], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], _doc: { yep: 20, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 2 } } + ], o.arr); + + done(); + }); + + it('that is greater than length', function(done) { + mpath.set('arr.yep', [5, 6, 7], o, special, function() { + return 'x'; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], _doc: { yep: 'x', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 'x' } } + ], o.arr); + + mpath.set('arr.yep', [5, 6, 7], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], _doc: { yep: 5, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 6 } } + ], o.arr); + + done(); + }); + }); + }); + + describe('array.$.path', function() { + describe('with single non-array value', function() { + it('copies the value to each item in array', function(done) { + mpath.set('arr.$.yep', { xtra: 'double good' }, o, special, function(v) { + return 9; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: 9, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 9 } } + ], o.arr); + + mpath.set('arr.$.yep', { xtra: 'double good' }, o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: { xtra: 'double good' }, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: { xtra: 'double good' } } } + ], o.arr); + + done(); + }); + }); + describe('with array of values', function() { + it('copies the value to each item in array', function(done) { + mpath.set('arr.$.yep', [15], o, special, function(v) { + return 'array'; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: 'array', arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 'array' } } + ], o.arr); + + mpath.set('arr.$.yep', [15], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: [15] } } + ], o.arr); + + done(); + }); + }); + }); + + describe('array.index.path', function() { + it('works', function(done) { + mpath.set('arr.1.yep', 0, o, special, function(v) { + return 1; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 1 } } + ], o.arr); + + mpath.set('arr.1.yep', 0, o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('array.index.array.path', function() { + it('with single value', function(done) { + mpath.set('arr.0.arr.e', 35, o, special, function(v) { + return 30; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 30 }, { a: { c: 48 }, e: 30 }, { d: 'yep', e: 30 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.0.arr.e', 35, o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 35 }, { a: { c: 48 }, e: 35 }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.0.arr.e', ['a', 'b'], o, special, function(v) { + return 'a' === v ? 'A' : v; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 'A' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.0.arr.e', ['a', 'b'], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 47 }, e: 'a' }, { a: { c: 48 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('array.index.array.path.path', function() { + it('with single value', function(done) { + mpath.set('arr.0.arr.a.b', 36, o, special, function(v) { + return 20; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 20 }, e: 'a' }, { a: { c: 48, b: 20 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.0.arr.a.b', 36, o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 36 }, e: 'a' }, { a: { c: 48, b: 36 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o, special, function(v) { + return v * 2; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 2 }, e: 'a' }, { a: { c: 48, b: 4 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.0.arr.a.b', [1, 2, 3, 4], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 1 }, e: 'a' }, { a: { c: 48, b: 2 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('array.index.array.$.path.path', function() { + it('with single value', function(done) { + mpath.set('arr.0.arr.$.a.b', '$', o, special, function(v) { + return 'dollaz'; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: 'dollaz' }, e: 'a' }, { a: { c: 48, b: 'dollaz' }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.0.arr.$.a.b', '$', o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: '$' }, e: 'a' }, { a: { c: 48, b: '$' }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.0.arr.$.a.b', [1], o, special, function(v) { + return {}; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: {} }, e: 'a' }, { a: { c: 48, b: {} }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.0.arr.$.a.b', [1], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: { b: [1] }, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('array.array.index.path', function() { + it('with single value', function(done) { + mpath.set('arr.arr.0.a', 'single', o, special, function(v) { + return 88; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 88, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.arr.0.a', 'single', o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o, special, function(v) { + return v * 2; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 8, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.arr.0.a', [4, 8, 15, 16, 23, 42], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 4, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('array.array.$.index.path', function() { + it('with single value', function(done) { + mpath.set('arr.arr.$.0.a', 'singles', o, special, function(v) { + return v.toUpperCase(); + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 'SINGLES', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.arr.$.0.a', 'singles', o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 'singles', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('$.arr.arr.0.a', 'single', o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: 'single', e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + it('with array', function(done) { + mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o, special, function(v) { + return Array; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: Array, e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.arr.$.0.a', [4, 8, 15, 16, 23, 42], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.$.arr.0.a', [4, 8, 15, 16, 23, 42, 108], o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108], e: 'a' }, { a: { c: 48, b: [1] }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('array.array.path.index', function() { + it('with single value', function(done) { + mpath.set('arr.arr.a.7', 47, o, special, function(v) { + return Object; + }); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, Object], e: 'a' }, { a: { c: 48, b: [1], 7: Object }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.arr.a.7', 47, o, special); + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, 47], e: 'a' }, { a: { c: 48, b: [1], 7: 47 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { special: true, yep: 0 } } + ], o.arr); + + done(); + }); + it('with array', function(done) { + o.arr[1]._doc.arr = [{ a: [] }, { a: [] }, { a: null }]; + mpath.set('arr.arr.a.7', [[null, 46], [undefined, 'woot']], o, special, function(v) { + return undefined === v ? 'nope' : v; + }); + + const a1 = []; + const a2 = []; + a1[7] = 'nope'; + a2[7] = 'woot'; + + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, null], e: 'a' }, { a: { c: 48, b: [1], 7: 46 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { arr: [{ a: a1 }, { a: a2 }, { a: null }], special: true, yep: 0 } } + ], o.arr); + + mpath.set('arr.arr.a.7', [[null, 46], [undefined, 'woot']], o, special); + + a1[7] = undefined; + + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { yep: [15], arr: [{ a: [4, 8, 15, 16, 23, 42, 108, null], e: 'a' }, { a: { c: 48, b: [1], 7: 46 }, e: 'b' }, { d: 'yep', e: 35 }] } }, + { yep: true, _doc: { arr: [{ a: a1 }, { a: a2 }, { a: null }], special: true, yep: 0 } } + ], o.arr); + + done(); + }); + }); + + describe('handles array.array.path', function() { + it('with single', function(done) { + o.arr[1]._doc.arr = [{}, {}]; + assert.deepEqual([{}, {}], o.arr[1]._doc.arr); + o.arr.push({ _doc: { arr: 'something else' } }); + o.arr.push({ _doc: { arr: ['something else'] } }); + o.arr.push({ _doc: { arr: [[]] } }); + o.arr.push({ _doc: { arr: [5] } }); + + // test + mpath.set('arr.arr.e', 47, o, special); + + const weird = []; + weird.e = 47; + + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { + yep: [15], + arr: [ + { a: [4, 8, 15, 16, 23, 42, 108, null], e: 47 }, + { a: { c: 48, b: [1], 7: 46 }, e: 47 }, + { d: 'yep', e: 47 } + ] + } + }, + { yep: true, + _doc: { + arr: [ + { e: 47 }, + { e: 47 } + ], + special: true, + yep: 0 + } + }, + { _doc: { arr: 'something else' } }, + { _doc: { arr: ['something else'] } }, + { _doc: { arr: [weird] } }, + { _doc: { arr: [5] } } + ] + , o.arr); + + done(); + }); + it('with arrays', function(done) { + mpath.set('arr.arr.e', [[1, 2, 3], [4, 5], null, [], [6], [7, 8, 9]], o, special); + + const weird = []; + weird.e = 6; + + assert.deepEqual([ + { yep: 47, arr: [{ a: { b: 47 } }, { a: { c: 48 } }, { d: 'yep' }], + _doc: { + yep: [15], + arr: [ + { a: [4, 8, 15, 16, 23, 42, 108, null], e: 1 }, + { a: { c: 48, b: [1], 7: 46 }, e: 2 }, + { d: 'yep', e: 3 } + ] + } + }, + { yep: true, + _doc: { + arr: [ + { e: 4 }, + { e: 5 } + ], + special: true, + yep: 0 + } + }, + { _doc: { arr: 'something else' } }, + { _doc: { arr: ['something else'] } }, + { _doc: { arr: [weird] } }, + { _doc: { arr: [5] } } + ] + , o.arr); + + done(); + }); + }); + + describe('that is a function', function() { + describe('without map', function() { + it('works on array value', function(done) { + const o = { hello: { world: [{ how: 'are' }, { you: '?' }] } }; + const special = function(obj, key, val) { + if (val) { + obj[key] = val; + } else { + return 'thing' == key + ? obj.world + : obj[key]; + } + }; + mpath.set('hello.thing.how', 'arrrr', o, special); + assert.deepEqual(o, { hello: { world: [{ how: 'arrrr' }, { you: '?', how: 'arrrr' }] } }); + done(); + }); + it('works on non-array value', function(done) { + const o = { hello: { world: { how: 'are you' } } }; + const special = function(obj, key, val) { + if (val) { + obj[key] = val; + } else { + return 'thing' == key + ? obj.world + : obj[key]; + } + }; + mpath.set('hello.thing.how', 'RU', o, special); + assert.deepEqual(o, { hello: { world: { how: 'RU' } } }); + done(); + }); + }); + it('works with map', function(done) { + const o = { hello: { world: [{ how: 'are' }, { you: '?' }] } }; + const special = function(obj, key, val) { + if (val) { + obj[key] = val; + } else { + return 'thing' == key + ? obj.world + : obj[key]; + } + }; + const map = function(val) { + return 'convert' == val + ? 'ºº' + : val; + }; + mpath.set('hello.thing.how', 'convert', o, special, map); + assert.deepEqual(o, { hello: { world: [{ how: 'ºº' }, { you: '?', how: 'ºº' }] } }); + done(); + }); + }); + + }); + + describe('get/set integration', function() { + const o = doc(); + + it('works', function(done) { + const vals = mpath.get('array.o.array.x.b', o); + + vals[0][0][2] = 10; + vals[1][0][1] = 0; + vals[1][1] = 'Rambaldi'; + vals[1][2] = [12, 14]; + vals[2] = [{ changed: true }, [null, ['changed', 'to', 'array']]]; + + mpath.set('array.o.array.x.b', vals, o); + + const t = [ + { o: { array: [{ x: { b: [4, 6, 10] } }, { y: 10 }] } }, + { o: { array: [{ x: { b: [1, 0, 3] } }, { x: { b: 'Rambaldi', z: 10 } }, { x: { b: [12, 14] } }] } }, + { o: { array: [{ x: { b: { changed: true } } }, { x: { b: [null, ['changed', 'to', 'array']] } }] } }, + { o: { array: [{ x: null }] } }, + { o: { array: [{ y: 3 }] } }, + { o: { array: [3, 0, null] } }, + { o: { name: 'ha' } } + ]; + assert.deepEqual(t, o.array); + done(); + }); + + it('array.prop', function(done) { + mpath.set('comments.name', ['this', 'was', 'changed'], o); + + assert.deepEqual([ + { name: 'this' }, + { name: 'was', _doc: { name: '2' } }, + { name: 'changed', + comments: [{}, { comments: [{ val: 'twoo' }] }], + _doc: { name: '3', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } } + ], o.comments); + + mpath.set('comments.name', ['also', 'changed', 'this'], o, special); + + assert.deepEqual([ + { name: 'also' }, + { name: 'was', _doc: { name: 'changed' } }, + { name: 'changed', + comments: [{}, { comments: [{ val: 'twoo' }] }], + _doc: { name: 'this', comments: [{}, { _doc: { comments: [{ val: 2 }] } }] } } + ], o.comments); + + done(); + }); + + it('nested array', function(done) { + const obj = { arr: [[{ test: 41 }]] }; + mpath.set('arr.test', [[42]], obj); + assert.deepEqual(obj.arr, [[{ test: 42 }]]); + done(); + }); + }); + + describe('multiple $ use', function() { + const o = doc(); + it('is ok', function(done) { + assert.doesNotThrow(function() { + mpath.set('arr.$.arr.$.a', 35, o); + }); + done(); + }); + }); + + it('has', function(done) { + assert.ok(mpath.has('a', { a: 1 })); + assert.ok(mpath.has('a', { a: undefined })); + assert.ok(!mpath.has('a', {})); + assert.ok(!mpath.has('a', null)); + + assert.ok(mpath.has('a.b', { a: { b: 1 } })); + assert.ok(mpath.has('a.b', { a: { b: undefined } })); + assert.ok(!mpath.has('a.b', { a: 1 })); + assert.ok(!mpath.has('a.b', { a: null })); + + done(); + }); + + it('underneath a map', function(done) { + if (!global.Map) { + done(); + return; + } + assert.equal(mpath.get('a.b', { a: new Map([['b', 1]]) }), 1); + + const m = new Map([['b', 1]]); + const obj = { a: m }; + mpath.set('a.c', 2, obj); + assert.equal(m.get('c'), 2); + + done(); + }); + + it('unset', function(done) { + let o = { a: 1 }; + mpath.unset('a', o); + assert.deepEqual(o, {}); + + o = { a: { b: 1 } }; + mpath.unset('a.b', o); + assert.deepEqual(o, { a: {} }); + + o = { a: null }; + mpath.unset('a.b', o); + assert.deepEqual(o, { a: null }); + + done(); + }); + + it('unset with __proto__', function(done) { + // Should refuse to set __proto__ + function Clazz() {} + Clazz.prototype.foobar = true; + + mpath.unset('__proto__.foobar', new Clazz()); + assert.ok(Clazz.prototype.foobar); + + mpath.unset('constructor.prototype.foobar', new Clazz()); + assert.ok(Clazz.prototype.foobar); + + done(); + }); + + it('get() underneath subclassed array', function(done) { + class MyArray extends Array {} + + const obj = { + arr: new MyArray() + }; + obj.arr.push({ test: 2 }); + + const arr = mpath.get('arr.test', obj); + assert.equal(arr.constructor.name, 'Array'); + assert.ok(!(arr instanceof MyArray)); + + done(); + }); + + it('ignores setting a nested path that doesnt exist', function(done) { + const o = doc(); + assert.doesNotThrow(function() { + mpath.set('thing.that.is.new', 10, o); + }); + done(); + }); + }); +}); diff --git a/week-3/04-course-app-hard/node_modules/mpath/test/stringToParts.js b/week-3/04-course-app-hard/node_modules/mpath/test/stringToParts.js new file mode 100644 index 000000000..09940dfa9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mpath/test/stringToParts.js @@ -0,0 +1,30 @@ +'use strict'; + +const assert = require('assert'); +const stringToParts = require('../lib/stringToParts'); + +describe('stringToParts', function() { + it('handles brackets for numbers', function() { + assert.deepEqual(stringToParts('list[0].name'), ['list', '0', 'name']); + assert.deepEqual(stringToParts('list[0][1].name'), ['list', '0', '1', 'name']); + }); + + it('handles dot notation', function() { + assert.deepEqual(stringToParts('a.b.c'), ['a', 'b', 'c']); + assert.deepEqual(stringToParts('a..b.d'), ['a', '', 'b', 'd']); + }); + + it('ignores invalid numbers in square brackets', function() { + assert.deepEqual(stringToParts('foo[1mystring]'), ['foo[1mystring]']); + assert.deepEqual(stringToParts('foo[1mystring].bar[1]'), ['foo[1mystring]', 'bar', '1']); + assert.deepEqual(stringToParts('foo[1mystring][2]'), ['foo[1mystring]', '2']); + }); + + it('handles empty string', function() { + assert.deepEqual(stringToParts(''), ['']); + }); + + it('handles trailing dot', function() { + assert.deepEqual(stringToParts('a.b.'), ['a', 'b', '']); + }); +}); \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/mquery/.github/ISSUE_TEMPLATE.md b/week-3/04-course-app-hard/node_modules/mquery/.github/ISSUE_TEMPLATE.md new file mode 100644 index 000000000..20412e654 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/.github/ISSUE_TEMPLATE.md @@ -0,0 +1,11 @@ + + +**Do you want to request a *feature* or report a *bug*?** + +**What is the current behavior?** + +**If the current behavior is a bug, please provide the steps to reproduce.** + +**What is the expected behavior?** + +**What are the versions of Node.js and mquery are you are using? Note that "latest" is not a version.** diff --git a/week-3/04-course-app-hard/node_modules/mquery/.github/PULL_REQUEST_TEMPLATE.md b/week-3/04-course-app-hard/node_modules/mquery/.github/PULL_REQUEST_TEMPLATE.md new file mode 100644 index 000000000..eb1a69d97 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/.github/PULL_REQUEST_TEMPLATE.md @@ -0,0 +1,9 @@ + + +**Summary** + + + +**Examples** + + diff --git a/week-3/04-course-app-hard/node_modules/mquery/History.md b/week-3/04-course-app-hard/node_modules/mquery/History.md new file mode 100644 index 000000000..da42c4d6f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/History.md @@ -0,0 +1,384 @@ +5.0.0 / 2023-02-23 +================== + * BREAKING CHANGE: drop callback support #137 [hasezoey](https://github.com/hasezoey) + * BREAKING CHANGE: remove custom promise library support #137 [hasezoey](https://github.com/hasezoey) + * BREAKING CHANGE: remove long deprecated `update`, `remove` functions #136 [hasezoey](https://github.com/hasezoey) + * BREAKING CHANGE: remove collection ducktyping: first param to `mquery()` is now always the query filter #138 + * feat: support MongoDB Node driver 5 #137 [hasezoey](https://github.com/hasezoey) + +4.0.3 / 2022-05-17 +================== + * fix: allow using `comment` with `findOneAndUpdate()`, `count()`, `distinct()` and `hint` with `findOneAndUpdate()` Automattic/mongoose#11793 + +4.0.2 / 2022-01-23 +================== + * perf: replace regexp-clone with native functionality #131 [Uzlopak](https://github.com/Uzlopak) + +4.0.1 / 2022-01-20 +================== + * perf: remove sliced, add various microoptimizations #130 [Uzlopak](https://github.com/Uzlopak) + * refactor: convert NodeCollection to a class #128 [jimmywarting](https://github.com/jimmywarting) + +4.0.0 / 2021-08-24 + +4.0.0-rc0 / 2021-08-19 +====================== + * BREAKING CHANGE: drop support for Node < 12 #123 + * BREAKING CHANGE: upgrade to mongodb driver 4.x: drop support for `findAndModify()`, use native `findOneAndUpdate/Delete` #124 + * BREAKING CHANGE: rename findStream -> findCursor #124 + * BREAKING CHANGE: use native ES6 promises by default, remove bluebird dependency #123 + +3.2.5 / 2021-03-29 +================== + * fix(utils): make `mergeClone()` skip special properties like `__proto__` #121 [zpbrent](https://github.com/zpbrent) + +3.2.4 / 2021-02-12 +================== + * fix(utils): make clone() only copy own properties Automattic/mongoose#9876 + +3.2.3 / 2020-12-10 +================== + * fix(utils): avoid copying special properties like `__proto__` when merging and cloning. Fix CVE-2020-35149 + +3.2.2 / 2019-09-22 +================== + * fix: dont re-call setOptions() when pulling base class options Automattic/mongoose#8159 + +3.2.1 / 2018-08-24 +================== + * chore: upgrade deps + +3.2.0 / 2018-08-24 +================== + * feat: add $useProjection to opt in to using `projection` instead of `fields` re: MongoDB deprecation warnings Automattic/mongoose#6880 + +3.1.2 / 2018-08-01 +================== + * chore: move eslint to devDependencies #110 [jakesjews](https://github.com/jakesjews) + +3.1.1 / 2018-07-30 +================== + * chore: add eslint #107 [Fonger](https://github.com/Fonger) + * docs: clean up readConcern docs #106 [Fonger](https://github.com/Fonger) + +3.1.0 / 2018-07-29 +================== + * feat: add `readConcern()` helper #105 [Fonger](https://github.com/Fonger) + * feat: add `maxTimeMS()` as alias of `maxTime()` #105 [Fonger](https://github.com/Fonger) + * feat: add `collation()` helper #105 [Fonger](https://github.com/Fonger) + +3.0.1 / 2018-07-02 +================== + * fix: parse sort array options correctly #103 #102 [Fonger](https://github.com/Fonger) + +3.0.0 / 2018-01-20 +================== + * chore: upgrade deps and add nsp + +3.0.0-rc0 / 2017-12-06 +====================== + * BREAKING CHANGE: remove support for node < 4 + * BREAKING CHANGE: remove support for retainKeyOrder, will always be true by default re: Automattic/mongoose#2749 + +2.3.3 / 2017-11-19 +================== + * fixed; catch sync errors in cursor.toArray() re: Automattic/mongoose#5812 + +2.3.2 / 2017-09-27 +================== + * fixed; bumped debug -> 2.6.9 re: #89 + +2.3.1 / 2017-05-22 +================== + * fixed; bumped debug -> 2.6.7 re: #86 + +2.3.0 / 2017-03-05 +================== + * added; replaceOne function + * added; deleteOne and deleteMany functions + +2.2.3 / 2017-01-31 +================== + * fixed; throw correct error when passing incorrectly formatted array to sort() + +2.2.2 / 2017-01-31 +================== + * fixed; allow passing maps to sort() + +2.2.1 / 2017-01-29 +================== + * fixed; allow passing string to hint() + +2.2.0 / 2017-01-08 +================== + * added; updateOne and updateMany functions + +2.1.0 / 2016-12-22 +================== + * added; ability to pass an array to select() #81 [dciccale](https://github.com/dciccale) + +2.0.0 / 2016-09-25 +================== + * added; support for mongodb driver 2.0 streams + +1.12.0 / 2016-09-25 +=================== + * added; `retainKeyOrder` option re: Automattic/mongoose#4542 + +1.11.0 / 2016-06-04 +=================== + * added; `.minDistance()` helper and minDistance for `.near()` Automattic/mongoose#4179 + +1.10.1 / 2016-04-26 +=================== + * fixed; ensure conditions is an object before assigning #75 + +1.10.0 / 2016-03-16 +================== + + * updated; bluebird to latest 2.10.2 version #74 [matskiv](https://github.com/matskiv) + +1.9.0 / 2016-03-15 +================== + * added; `.eq` as a shortcut for `.equals` #72 [Fonger](https://github.com/Fonger) + * added; ability to use array syntax for sort re: https://jira.mongodb.org/browse/NODE-578 #67 + +1.8.0 / 2016-03-01 +================== + * fixed; dont throw an error if count used with sort or select Automattic/mongoose#3914 + +1.7.0 / 2016-02-23 +================== + * fixed; don't treat objects with a length property as argument objects #70 + * added; `.findCursor()` method #69 [nswbmw](https://github.com/nswbmw) + * added; `_compiledUpdate` property #68 [nswbmw](https://github.com/nswbmw) + +1.6.2 / 2015-07-12 +================== + + * fixed; support exec cb being called synchronously #66 + +1.6.1 / 2015-06-16 +================== + + * fixed; do not treat $meta projection as inclusive [vkarpov15](https://github.com/vkarpov15) + +1.6.0 / 2015-05-27 +================== + + * update dependencies #65 [bachp](https://github.com/bachp) + +1.5.0 / 2015-03-31 +================== + + * fixed; debug output + * fixed; allow hint usage with count #61 [trueinsider](https://github.com/trueinsider) + +1.4.0 / 2015-03-29 +================== + + * added; object support to slice() #60 [vkarpov15](https://github.com/vkarpov15) + * debug; improved output #57 [flyvictor](https://github.com/flyvictor) + +1.3.0 / 2014-11-06 +================== + + * added; setTraceFunction() #53 from [jlai](https://github.com/jlai) + +1.2.1 / 2014-09-26 +================== + + * fixed; distinct assignment in toConstructor() #51 from [esco](https://github.com/esco) + +1.2.0 / 2014-09-18 +================== + + * added; stream() support for find() + +1.1.0 / 2014-09-15 +================== + + * add #then for co / koa support + * start checking code coverage + +1.0.0 / 2014-07-07 +================== + + * Remove broken require() calls until they're actually implemented #48 [vkarpov15](https://github.com/vkarpov15) + +0.9.0 / 2014-05-22 +================== + + * added; thunk() support + * release 0.8.0 + +0.8.0 / 2014-05-15 +================== + + * added; support for maxTimeMS #44 [yoitsro](https://github.com/yoitsro) + * updated; devDependency (driver to 1.4.4) + +0.7.0 / 2014-05-02 +================== + + * fixed; pass $maxDistance in $near object as described in docs #43 [vkarpov15](https://github.com/vkarpov15) + * fixed; cloning buffers #42 [gjohnson](https://github.com/gjohnson) + * tests; a little bit more `mongodb` agnostic #34 [refack](https://github.com/refack) + +0.6.0 / 2014-04-01 +================== + + * fixed; Allow $meta args in sort() so text search sorting works #37 [vkarpov15](https://github.com/vkarpov15) + +0.5.3 / 2014-02-22 +================== + + * fixed; cloning mongodb.Binary + +0.5.2 / 2014-01-30 +================== + + * fixed; cloning ObjectId constructors + * fixed; cloning of ReadPreferences #30 [ashtuchkin](https://github.com/ashtuchkin) + * tests; use specific mongodb version #29 [AvianFlu](https://github.com/AvianFlu) + * tests; remove dependency on ObjectId #28 [refack](https://github.com/refack) + * tests; add failing ReadPref test + +0.5.1 / 2014-01-17 +================== + + * added; deprecation notice to tags parameter #27 [ashtuchkin](https://github.com/ashtuchkin) + * readme; add links + +0.5.0 / 2014-01-16 +================== + + * removed; mongodb driver dependency #26 [ashtuchkin](https://github.com/ashtuchkin) + * removed; first class support of read preference tags #26 (still supported though) [ashtuchkin](https://github.com/ashtuchkin) + * added; better ObjectId clone support + * fixed; cloning objects that have no constructor #21 + * docs; cleaned up [ashtuchkin](https://github.com/ashtuchkin) + +0.4.2 / 2014-01-08 +================== + + * updated; debug module 0.7.4 [refack](https://github.com/refack) + +0.4.1 / 2014-01-07 +================== + + * fixed; inclusive/exclusive logic + +0.4.0 / 2014-01-06 +================== + + * added; selected() + * added; selectedInclusively() + * added; selectedExclusively() + +0.3.3 / 2013-11-14 +================== + + * Fix Mongo DB Dependency #20 [rschmukler](https://github.com/rschmukler) + +0.3.2 / 2013-09-06 +================== + + * added; geometry support for near() + +0.3.1 / 2013-08-22 +================== + + * fixed; update retains key order #19 + +0.3.0 / 2013-08-22 +================== + + * less hardcoded isNode env detection #18 [vshulyak](https://github.com/vshulyak) + * added; validation of findAndModify varients + * clone update doc before execution + * stricter env checks + +0.2.7 / 2013-08-2 +================== + + * Now support GeoJSON point values for Query#near + +0.2.6 / 2013-07-30 +================== + + * internally, 'asc' and 'desc' for sorts are now converted into 1 and -1, respectively + +0.2.5 / 2013-07-30 +================== + + * updated docs + * changed internal representation of `sort` to use objects instead of arrays + +0.2.4 / 2013-07-25 +================== + + * updated; sliced to 0.0.5 + +0.2.3 / 2013-07-09 +================== + + * now using a callback in collection.find instead of directly calling toArray() on the cursor [ebensing](https://github.com/ebensing) + +0.2.2 / 2013-07-09 +================== + + * now exposing mongodb export to allow for better testing [ebensing](https://github.com/ebensing) + +0.2.1 / 2013-07-08 +================== + + * select no longer accepts arrays as parameters [ebensing](https://github.com/ebensing) + +0.2.0 / 2013-07-05 +================== + + * use $geoWithin by default + +0.1.2 / 2013-07-02 +================== + + * added use$geoWithin flag [ebensing](https://github.com/ebensing) + * fix read preferences typo [ebensing](https://github.com/ebensing) + * fix reference to old param name in exists() [ebensing](https://github.com/ebensing) + +0.1.1 / 2013-06-24 +================== + + * fixed; $intersects -> $geoIntersects #14 [ebensing](https://github.com/ebensing) + * fixed; Retain key order when copying objects #15 [ebensing](https://github.com/ebensing) + * bump mongodb dev dep + +0.1.0 / 2013-05-06 +================== + + * findAndModify; return the query + * move mquery.proto.canMerge to mquery.canMerge + * overwrite option now works with non-empty objects + * use strict mode + * validate count options + * validate distinct options + * add aggregate to base collection methods + * clone merge arguments + * clone merged update arguments + * move subclass to mquery.prototype.toConstructor + * fixed; maxScan casing + * use regexp-clone + * added; geometry/intersects support + * support $and + * near: do not use "radius" + * callbacks always fire on next turn of loop + * defined collection interface + * remove time from tests + * clarify goals + * updated docs; + +0.0.1 / 2012-12-15 +================== + + * initial release diff --git a/week-3/04-course-app-hard/node_modules/mquery/LICENSE b/week-3/04-course-app-hard/node_modules/mquery/LICENSE new file mode 100644 index 000000000..38c529daa --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/LICENSE @@ -0,0 +1,22 @@ +(The MIT License) + +Copyright (c) 2012 [Aaron Heckmann](aaron.heckmann+github@gmail.com) + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/mquery/README.md b/week-3/04-course-app-hard/node_modules/mquery/README.md new file mode 100644 index 000000000..aa3b82e73 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/README.md @@ -0,0 +1,1247 @@ +# mquery + +`mquery` is a fluent mongodb query builder designed to run in multiple environments. + +[![Build Status](https://travis-ci.org/aheckmann/mquery.svg?branch=master)](https://travis-ci.org/aheckmann/mquery) +[![NPM version](https://badge.fury.io/js/mquery.svg)](http://badge.fury.io/js/mquery) + +[![npm](https://nodei.co/npm/mquery.png)](https://www.npmjs.com/package/mquery) + +## Features + +- fluent query builder api +- custom base query support +- MongoDB 2.4 geoJSON support +- method + option combinations validation +- node.js driver compatibility +- environment detection +- [debug](https://github.com/visionmedia/debug) support +- separated collection implementations for maximum flexibility + +## Use + +```js +const mongo = require('mongodb'); + +const client = new mongo.MongoClient(uri); +await client.connect(); +// get a collection +const collection = client.collection('artists'); + +// pass it to the constructor +await mquery(collection).find({...}); + +// or pass it to the collection method +const docs = await mquery().find({...}).collection(collection); + +// or better yet, create a custom query constructor that has it always set +const Artist = mquery(collection).toConstructor(); +const docs = await Artist().find(...).where(...); +``` + +`mquery` requires a collection object to work with. In the example above we just pass the collection object created using the official [MongoDB driver](https://github.com/mongodb/node-mongodb-native). + +## Fluent API + +- [mquery](#mquery) + - [Features](#features) + - [Use](#use) + - [Fluent API](#fluent-api) + - [Helpers](#helpers) + - [find()](#find) + - [findOne()](#findone) + - [count()](#count) + - [findOneAndUpdate()](#findoneandupdate) + - [findOneAndUpdate() options](#findoneandupdate-options) + - [findOneAndRemove()](#findoneandremove) + - [findOneAndRemove() options](#findoneandremove-options) + - [distinct()](#distinct) + - [exec()](#exec) + - [stream()](#stream) + - [all()](#all) + - [and()](#and) + - [box()](#box) + - [circle()](#circle) + - [elemMatch()](#elemmatch) + - [equals()](#equals) + - [exists()](#exists) + - [geometry()](#geometry) + - [gt()](#gt) + - [gte()](#gte) + - [in()](#in) + - [intersects()](#intersects) + - [lt()](#lt) + - [lte()](#lte) + - [maxDistance()](#maxdistance) + - [mod()](#mod) + - [ne()](#ne) + - [nin()](#nin) + - [nor()](#nor) + - [near()](#near) + - [Example](#example) + - [or()](#or) + - [polygon()](#polygon) + - [regex()](#regex) + - [select()](#select) + - [String syntax](#string-syntax) + - [selected()](#selected) + - [selectedInclusively()](#selectedinclusively) + - [selectedExclusively()](#selectedexclusively) + - [size()](#size) + - [slice()](#slice) + - [within()](#within) + - [where()](#where) + - [$where()](#where-1) + - [batchSize()](#batchsize) + - [collation()](#collation) + - [comment()](#comment) + - [hint()](#hint) + - [j()](#j) + - [limit()](#limit) + - [maxTime()](#maxtime) + - [skip()](#skip) + - [sort()](#sort) + - [read()](#read) + - [Preferences:](#preferences) + - [Preference Tags:](#preference-tags) + - [readConcern()](#readconcern) + - [Read Concern Level:](#read-concern-level) + - [writeConcern()](#writeconcern) + - [Write Concern:](#write-concern) + - [slaveOk()](#slaveok) + - [tailable()](#tailable) + - [wtimeout()](#wtimeout) + - [Helpers](#helpers-1) + - [collection()](#collection) + - [then()](#then) + - [merge(object)](#mergeobject) + - [setOptions(options)](#setoptionsoptions) + - [setOptions() options](#setoptions-options) + - [setTraceFunction(func)](#settracefunctionfunc) + - [mquery.setGlobalTraceFunction(func)](#mquerysetglobaltracefunctionfunc) + - [mquery.canMerge(conditions)](#mquerycanmergeconditions) + - [mquery.use$geoWithin](#mqueryusegeowithin) + - [Custom Base Queries](#custom-base-queries) + - [Validation](#validation) + - [Debug support](#debug-support) + - [General compatibility](#general-compatibility) + - [ObjectIds](#objectids) + - [Read Preferences](#read-preferences) + - [Future goals](#future-goals) + - [Installation](#installation) + - [License](#license) + +## Helpers + +- [collection](#collection) +- [then](#then) +- [merge](#mergeobject) +- [setOptions](#setoptionsoptions) +- [setTraceFunction](#settracefunctionfunc) +- [mquery.setGlobalTraceFunction](#mquerysetglobaltracefunctionfunc) +- [mquery.canMerge](#mquerycanmergeconditions) +- [mquery.use$geoWithin](#mqueryusegeowithin) + +### find() + +Declares this query a _find_ query. Optionally pass a match clause. + +```js +mquery().find() +mquery().find(match) +await mquery().find() +const docs = await mquery().find(match); +assert(Array.isArray(docs)); +``` + +### findOne() + +Declares this query a _findOne_ query. Optionally pass a match clause. + +```js +mquery().findOne() +mquery().findOne(match) +await mquery().findOne() +const doc = await mquery().findOne(match); +if (doc) { + // the document may not be found + console.log(doc); +} +``` + +### count() + +Declares this query a _count_ query. Optionally pass a match clause. + +```js +mquery().count() +mquery().count(match) +await mquery().count() +const number = await mquery().count(match); +console.log('we found %d matching documents', number); +``` + +### findOneAndUpdate() + +Declares this query a _findAndModify_ with update query. Optionally pass a match clause, update document, options. + +When executed, the first matching document (if found) is modified according to the update document and passed back. + +#### findOneAndUpdate() options + +Options are passed to the `setOptions()` method. + +- `returnDocument`: string - `'after'` to return the modified document rather than the original. defaults to `'before'` +- `upsert`: boolean - creates the object if it doesn't exist. defaults to false +- `sort`: if multiple docs are found by the match condition, sets the sort order to choose which doc to update + +```js +query.findOneAndUpdate() +query.findOneAndUpdate(updateDocument) +query.findOneAndUpdate(match, updateDocument) +query.findOneAndUpdate(match, updateDocument, options) + +// the following all execute the command +await query.findOneAndUpdate() +await query.findOneAndUpdate(updateDocument) +await query.findOneAndUpdate(match, updateDocument) +const doc = await await query.findOneAndUpdate(match, updateDocument, options); +if (doc) { + // the document may not be found + console.log(doc); +} +``` + +### findOneAndRemove() + +Declares this query a _findAndModify_ with remove query. Alias of findOneAndDelete. +Optionally pass a match clause, options. + +When executed, the first matching document (if found) is modified according to the update document, removed from the collection and passed as a result. + +#### findOneAndRemove() options + +Options are passed to the `setOptions()` method. + +- `sort`: if multiple docs are found by the condition, sets the sort order to choose which doc to modify and remove + +```js +A.where().findOneAndDelete() +A.where().findOneAndRemove() +A.where().findOneAndRemove(match) +A.where().findOneAndRemove(match, options) + +// the following all execute the command +await A.where().findOneAndRemove() +await A.where().findOneAndRemove(match) +const doc = await A.where().findOneAndRemove(match, options); +if (doc) { + // the document may not be found + console.log(doc); +} +``` + +### distinct() + +Declares this query a _distinct_ query. Optionally pass the distinct field, a match clause. + +```js +mquery().distinct() +mquery().distinct(match) +mquery().distinct(match, field) +mquery().distinct(field) + +// the following all execute the command +await mquery().distinct() +await mquery().distinct(field) +await mquery().distinct(match) +const result = await mquery().distinct(match, field); +console.log(result); +``` + +### exec() + +Executes the query. + +```js +const docs = await mquery().findOne().where('route').intersects(polygon).exec() +``` + +### stream() + +Executes the query and returns a stream. + +```js +var stream = mquery().find().stream(options); +stream.on('data', cb); +stream.on('close', fn); +``` + +Note: this only works with `find()` operations. + +Note: returns the stream object directly from the node-mongodb-native driver. (currently streams1 type stream). Any options will be passed along to the [driver method](http://mongodb.github.io/node-mongodb-native/api-generated/cursor.html#stream). + +--- + +### all() + +Specifies an `$all` query condition + +```js +mquery().where('permission').all(['read', 'write']) +``` + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/all/) + +### and() + +Specifies arguments for an `$and` condition + +```js +mquery().and([{ color: 'green' }, { status: 'ok' }]) +``` + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/and/) + +### box() + +Specifies a `$box` condition + +```js +var lowerLeft = [40.73083, -73.99756] +var upperRight= [40.741404, -73.988135] + +mquery().where('location').within().box(lowerLeft, upperRight) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/box/) + +### circle() + +Specifies a `$center` or `$centerSphere` condition. + +```js +var area = { center: [50, 50], radius: 10, unique: true } +query.where('loc').within().circle(area) +query.circle('loc', area); + +// for spherical calculations +var area = { center: [50, 50], radius: 10, unique: true, spherical: true } +query.where('loc').within().circle(area) +query.circle('loc', area); +``` + +- [MongoDB Documentation - center](http://docs.mongodb.org/manual/reference/operator/center/) +- [MongoDB Documentation - centerSphere](http://docs.mongodb.org/manual/reference/operator/centerSphere/) + +### elemMatch() + +Specifies an `$elemMatch` condition + +```js +query.where('comment').elemMatch({ author: 'autobot', votes: {$gte: 5}}) + +query.elemMatch('comment', function (elem) { + elem.where('author').equals('autobot'); + elem.where('votes').gte(5); +}) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/elemMatch/) + +### equals() + +Specifies the complementary comparison value for the path specified with `where()`. + +```js +mquery().where('age').equals(49); + +// is the same as + +mquery().where({ 'age': 49 }); +``` + +### exists() + +Specifies an `$exists` condition + +```js +// { name: { $exists: true }} +mquery().where('name').exists() +mquery().where('name').exists(true) +mquery().exists('name') + +// { name: { $exists: false }} +mquery().where('name').exists(false); +mquery().exists('name', false); +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/exists/) + +### geometry() + +Specifies a `$geometry` condition + +```js +var polyA = [[[ 10, 20 ], [ 10, 40 ], [ 30, 40 ], [ 30, 20 ]]] +query.where('loc').within().geometry({ type: 'Polygon', coordinates: polyA }) + +// or +var polyB = [[ 0, 0 ], [ 1, 1 ]] +query.where('loc').within().geometry({ type: 'LineString', coordinates: polyB }) + +// or +var polyC = [ 0, 0 ] +query.where('loc').within().geometry({ type: 'Point', coordinates: polyC }) + +// or +query.where('loc').intersects().geometry({ type: 'Point', coordinates: polyC }) + +// or +query.where('loc').near().geometry({ type: 'Point', coordinates: [3,5] }) +``` + +`geometry()` **must** come after `intersects()`, `within()`, or `near()`. + +The `object` argument must contain `type` and `coordinates` properties. + +- type `String` +- coordinates `Array` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/geometry/) + +### gt() + +Specifies a `$gt` query condition. + +```js +mquery().where('clicks').gt(999) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/gt/) + +### gte() + +Specifies a `$gte` query condition. + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/gte/) + +```js +mquery().where('clicks').gte(1000) +``` + +### in() + +Specifies an `$in` query condition. + +```js +mquery().where('author_id').in([3, 48901, 761]) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/in/) + +### intersects() + +Declares an `$geoIntersects` query for `geometry()`. + +```js +query.where('path').intersects().geometry({ + type: 'LineString' + , coordinates: [[180.0, 11.0], [180, 9.0]] +}) + +// geometry arguments are supported +query.where('path').intersects({ + type: 'LineString' + , coordinates: [[180.0, 11.0], [180, 9.0]] +}) +``` + +**Must** be used after `where()`. + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/geoIntersects/) + +### lt() + +Specifies a `$lt` query condition. + +```js +mquery().where('clicks').lt(50) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/lt/) + +### lte() + +Specifies a `$lte` query condition. + +```js +mquery().where('clicks').lte(49) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/lte/) + +### maxDistance() + +Specifies a `$maxDistance` query condition. + +```js +mquery().where('location').near({ center: [139, 74.3] }).maxDistance(5) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/maxDistance/) + +### mod() + +Specifies a `$mod` condition + +```js +mquery().where('count').mod(2, 0) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/mod/) + +### ne() + +Specifies a `$ne` query condition. + +```js +mquery().where('status').ne('ok') +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/ne/) + +### nin() + +Specifies an `$nin` query condition. + +```js +mquery().where('author_id').nin([3, 48901, 761]) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/nin/) + +### nor() + +Specifies arguments for an `$nor` condition. + +```js +mquery().nor([{ color: 'green' }, { status: 'ok' }]) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/nor/) + +### near() + +Specifies arguments for a `$near` or `$nearSphere` condition. + +These operators return documents sorted by distance. + +#### Example + +```js +query.where('loc').near({ center: [10, 10] }); +query.where('loc').near({ center: [10, 10], maxDistance: 5 }); +query.near('loc', { center: [10, 10], maxDistance: 5 }); + +// GeoJSON +query.where('loc').near({ center: { type: 'Point', coordinates: [10, 10] }}); +query.where('loc').near({ center: { type: 'Point', coordinates: [10, 10] }, maxDistance: 5, spherical: true }); +query.where('loc').near().geometry({ type: 'Point', coordinates: [10, 10] }); + +// For a $nearSphere condition, pass the `spherical` option. +query.near({ center: [10, 10], maxDistance: 5, spherical: true }); +``` + +[MongoDB Documentation](http://www.mongodb.org/display/DOCS/Geospatial+Indexing) + +### or() + +Specifies arguments for an `$or` condition. + +```js +mquery().or([{ color: 'red' }, { status: 'emergency' }]) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/or/) + +### polygon() + +Specifies a `$polygon` condition + +```js +mquery().where('loc').within().polygon([10,20], [13, 25], [7,15]) +mquery().polygon('loc', [10,20], [13, 25], [7,15]) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/polygon/) + +### regex() + +Specifies a `$regex` query condition. + +```js +mquery().where('name').regex(/^sixstepsrecords/) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/regex/) + +### select() + +Specifies which document fields to include or exclude + +```js +// 1 means include, 0 means exclude +mquery().select({ name: 1, address: 1, _id: 0 }) + +// or + +mquery().select('name address -_id') +``` + +#### String syntax + +When passing a string, prefixing a path with `-` will flag that path as excluded. When a path does not have the `-` prefix, it is included. + +```js +// include a and b, exclude c +query.select('a b -c'); + +// or you may use object notation, useful when +// you have keys already prefixed with a "-" +query.select({a: 1, b: 1, c: 0}); +``` + +_Cannot be used with `distinct()`._ + +### selected() + +Determines if the query has selected any fields. + +```js +var query = mquery(); +query.selected() // false +query.select('-name'); +query.selected() // true +``` + +### selectedInclusively() + +Determines if the query has selected any fields inclusively. + +```js +var query = mquery().select('name'); +query.selectedInclusively() // true + +var query = mquery(); +query.selected() // false +query.select('-name'); +query.selectedInclusively() // false +query.selectedExclusively() // true +``` + +### selectedExclusively() + +Determines if the query has selected any fields exclusively. + +```js +var query = mquery().select('-name'); +query.selectedExclusively() // true + +var query = mquery(); +query.selected() // false +query.select('name'); +query.selectedExclusively() // false +query.selectedInclusively() // true +``` + +### size() + +Specifies a `$size` query condition. + +```js +mquery().where('someArray').size(6) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/size/) + +### slice() + +Specifies a `$slice` projection for a `path` + +```js +mquery().where('comments').slice(5) +mquery().where('comments').slice(-5) +mquery().where('comments').slice([-10, 5]) +``` + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/projection/slice/) + +### within() + +Sets a `$geoWithin` or `$within` argument for geo-spatial queries. + +```js +mquery().within().box() +mquery().within().circle() +mquery().within().geometry() + +mquery().where('loc').within({ center: [50,50], radius: 10, unique: true, spherical: true }); +mquery().where('loc').within({ box: [[40.73, -73.9], [40.7, -73.988]] }); +mquery().where('loc').within({ polygon: [[],[],[],[]] }); + +mquery().where('loc').within([], [], []) // polygon +mquery().where('loc').within([], []) // box +mquery().where('loc').within({ type: 'LineString', coordinates: [...] }); // geometry +``` + +As of mquery 2.0, `$geoWithin` is used by default. This impacts you if running MongoDB < 2.4. To alter this behavior, see [mquery.use$geoWithin](#mqueryusegeowithin). + +**Must** be used after `where()`. + +[MongoDB Documentation](http://docs.mongodb.org/manual/reference/operator/geoWithin/) + +### where() + +Specifies a `path` for use with chaining + +```js +// instead of writing: +mquery().find({age: {$gte: 21, $lte: 65}}); + +// we can instead write: +mquery().where('age').gte(21).lte(65); + +// passing query conditions is permitted too +mquery().find().where({ name: 'vonderful' }) + +// chaining +await mquery() + .where('age').gte(21).lte(65) + .where({ 'name': /^vonderful/i }) + .where('friends').slice(10) + .exec() +``` + +### $where() + +Specifies a `$where` condition. + +Use `$where` when you need to select documents using a JavaScript expression. + +```js +await query.$where('this.comments.length > 10 || this.name.length > 5').exec() + +query.$where(function () { + return this.comments.length > 10 || this.name.length > 5; +}) +``` + +Only use `$where` when you have a condition that cannot be met using other MongoDB operators like `$lt`. Be sure to read about all of [its caveats](http://docs.mongodb.org/manual/reference/operator/where/) before using. + +--- + +### batchSize() + +Specifies the batchSize option. + +```js +query.batchSize(100) +``` + +_Cannot be used with `distinct()`._ + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.batchSize/) + +### collation() + +Specifies the collation option. + +```js +query.collation({ locale: "en_US", strength: 1 }) +``` + +[MongoDB documentation](https://docs.mongodb.com/manual/reference/method/cursor.collation/#cursor.collation) + +### comment() + +Specifies the comment option. + +```js +query.comment('login query'); +``` + +_Cannot be used with `distinct()`._ + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/) + +### hint() + +Sets query hints. + +```js +mquery().hint({ indexA: 1, indexB: -1 }) +``` + +_Cannot be used with `distinct()`._ + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/operator/hint/) + +### j() + +Requests acknowledgement that this operation has been persisted to MongoDB's on-disk journal. + +This option is only valid for operations that write to the database: + +- `deleteOne()` +- `deleteMany()` +- `findOneAndDelete()` +- `findOneAndUpdate()` +- `updateOne()` +- `updateMany()` + +Defaults to the `j` value if it is specified in [writeConcern](#writeconcern) + +```js +mquery().j(true); +``` + +### limit() + +Specifies the limit option. + +```js +query.limit(20) +``` + +_Cannot be used with `distinct()`._ + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.limit/) + +### maxTime() + +Specifies the maxTimeMS option. + +```js +query.maxTime(100) +query.maxTimeMS(100) +``` + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.maxTimeMS/) + +### skip() + +Specifies the skip option. + +```js +query.skip(100).limit(20) +``` + +_Cannot be used with `distinct()`._ + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.skip/) + +### sort() + +Sets the query sort order. + +If an object is passed, key values allowed are `asc`, `desc`, `ascending`, `descending`, `1`, and `-1`. + +If a string is passed, it must be a space delimited list of path names. The sort order of each path is ascending unless the path name is prefixed with `-` which will be treated as descending. + +```js +// these are equivalent +query.sort({ field: 'asc', test: -1 }); +query.sort('field -test'); +``` + +_Cannot be used with `distinct()`._ + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/cursor.sort/) + +### read() + +Sets the readPreference option for the query. + +```js +mquery().read('primary') +mquery().read('p') // same as primary + +mquery().read('primaryPreferred') +mquery().read('pp') // same as primaryPreferred + +mquery().read('secondary') +mquery().read('s') // same as secondary + +mquery().read('secondaryPreferred') +mquery().read('sp') // same as secondaryPreferred + +mquery().read('nearest') +mquery().read('n') // same as nearest + +mquery().setReadPreference('primary') // alias of .read() +``` + +#### Preferences: + +- `primary` - (default) Read from primary only. Operations will produce an error if primary is unavailable. Cannot be combined with tags. +- `secondary` - Read from secondary if available, otherwise error. +- `primaryPreferred` - Read from primary if available, otherwise a secondary. +- `secondaryPreferred` - Read from a secondary if available, otherwise read from the primary. +- `nearest` - All operations read from among the nearest candidates, but unlike other modes, this option will include both the primary and all secondaries in the random selection. + +Aliases + +- `p` primary +- `pp` primaryPreferred +- `s` secondary +- `sp` secondaryPreferred +- `n` nearest + +#### Preference Tags: + +To keep the separation of concerns between `mquery` and your driver +clean, `mquery#read()` no longer handles specifying a second `tags` argument as of version 0.5. +If you need to specify tags, pass any non-string argument as the first argument. +`mquery` will pass this argument untouched to your collections methods later. +For example: + +```js +// example of specifying tags using the Node.js driver +var ReadPref = require('mongodb').ReadPreference; +var preference = new ReadPref('secondary', [{ dc:'sf', s: 1 },{ dc:'ma', s: 2 }]); +mquery(...).read(preference).exec(); +``` + +Read more about how to use read preferences [here](http://docs.mongodb.org/manual/applications/replication/#read-preference) and [here](http://mongodb.github.com/node-mongodb-native/driver-articles/anintroductionto1_1and2_2.html#read-preferences). + +### readConcern() + +Sets the readConcern option for the query. + +```js +// local +mquery().readConcern('local') +mquery().readConcern('l') +mquery().r('l') + +// available +mquery().readConcern('available') +mquery().readConcern('a') +mquery().r('a') + +// majority +mquery().readConcern('majority') +mquery().readConcern('m') +mquery().r('m') + +// linearizable +mquery().readConcern('linearizable') +mquery().readConcern('lz') +mquery().r('lz') + +// snapshot +mquery().readConcern('snapshot') +mquery().readConcern('s') +mquery().r('s') +``` + +#### Read Concern Level: + +- `local` - The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). (MongoDB 3.2+) +- `available` - The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). (MongoDB 3.6+) +- `majority` - The query returns the data that has been acknowledged by a majority of the replica set members. The documents returned by the read operation are durable, even in the event of failure. (MongoDB 3.2+) +- `linearizable` - The query returns data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation. The query may wait for concurrently executing writes to propagate to a majority of replica set members before returning results. (MongoDB 3.4+) +- `snapshot` - Only available for operations within multi-document transactions. Upon transaction commit with write concern "majority", the transaction operations are guaranteed to have read from a snapshot of majority-committed data. (MongoDB 4.0+) + +Aliases + +- `l` local +- `a` available +- `m` majority +- `lz` linearizable +- `s` snapshot + +Read more about how to use read concern [here](https://docs.mongodb.com/manual/reference/read-concern/). + +### writeConcern() + +Sets the writeConcern option for the query. + +This option is only valid for operations that write to the database: + +- `deleteOne()` +- `deleteMany()` +- `findOneAndDelete()` +- `findOneAndUpdate()` +- `updateOne()` +- `updateMany()` + +```js +mquery().writeConcern(0) +mquery().writeConcern(1) +mquery().writeConcern({ w: 1, j: true, wtimeout: 2000 }) +mquery().writeConcern('majority') +mquery().writeConcern('m') // same as majority +mquery().writeConcern('tagSetName') // if the tag set is 'm', use .writeConcern({ w: 'm' }) instead +mquery().w(1) // w is alias of writeConcern +``` + +#### Write Concern: + +writeConcern({ w: ``, j: ``, wtimeout: `` }`) + +- the w option to request acknowledgement that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags +- the j option to request acknowledgement that the write operation has been written to the journal +- the wtimeout option to specify a time limit to prevent write operations from blocking indefinitely + +Can be break down to use the following syntax: + +mquery().w(``).j(``).wtimeout(``) + +Read more about how to use write concern [here](https://docs.mongodb.com/manual/reference/write-concern/) + +### slaveOk() + +Sets the slaveOk option. `true` allows reading from secondaries. + +**deprecated** use [read()](#read) preferences instead if on mongodb >= 2.2 + +```js +query.slaveOk() // true +query.slaveOk(true) +query.slaveOk(false) +``` + +[MongoDB documentation](http://docs.mongodb.org/manual/reference/method/rs.slaveOk/) + +### tailable() + +Sets tailable option. + +```js +mquery().tailable() <== true +mquery().tailable(true) +mquery().tailable(false) +``` + +_Cannot be used with `distinct()`._ + +[MongoDB Documentation](http://docs.mongodb.org/manual/tutorial/create-tailable-cursor/) + +### wtimeout() + +Specifies a time limit, in milliseconds, for the write concern. If `w > 1`, it is maximum amount of time to +wait for this write to propagate through the replica set before this operation fails. The default is `0`, which means no timeout. + +This option is only valid for operations that write to the database: + +- `deleteOne()` +- `deleteMany()` +- `findOneAndDelete()` +- `findOneAndUpdate()` +- `updateOne()` +- `updateMany()` + +Defaults to `wtimeout` value if it is specified in [writeConcern](#writeconcern) + +```js +mquery().wtimeout(2000) +mquery().wTimeout(2000) +``` + +## Helpers + +### collection() + +Sets the querys collection. + +```js +mquery().collection(aCollection) +``` + +### then() + +Executes the query and returns a promise which will be resolved with the query results or rejected if the query responds with an error. + +```js +mquery().find(..).then(success, error); +``` + +This is very useful when combined with [co](https://github.com/visionmedia/co) or [koa](https://github.com/koajs/koa), which automatically resolve promise-like objects for you. + +```js +co(function*(){ + var doc = yield mquery().findOne({ _id: 499 }); + console.log(doc); // { _id: 499, name: 'amazing', .. } +})(); +``` + +_NOTE_: +The returned promise is a [bluebird](https://github.com/petkaantonov/bluebird/) promise but this is customizable. If you want to +use your favorite promise library, simply set `mquery.Promise = YourPromiseConstructor`. +Your `Promise` must be [promises A+](http://promisesaplus.com/) compliant. + +### merge(object) + +Merges other mquery or match condition objects into this one. When an mquery instance is passed, its match conditions, field selection and options are merged. + +```js +const drum = mquery({ type: 'drum' }).collection(instruments); +const redDrum = mquery({ color: 'red' }).merge(drum); +const n = await redDrum.count(); +console.log('there are %d red drums', n); +``` + +Internally uses `mquery.canMerge` to determine validity. + +### setOptions(options) + +Sets query options. + +```js +mquery().setOptions({ collection: coll, limit: 20 }) +``` + +#### setOptions() options + +- [tailable](#tailable) * +- [sort](#sort) * +- [limit](#limit) * +- [skip](#skip) * +- [maxTime](#maxtime) * +- [batchSize](#batchsize) * +- [comment](#comment) * +- [hint](#hint) * +- [collection](#collection): the collection to query against + +_* denotes a query helper method is also available_ + +### setTraceFunction(func) + +Set a function to trace this query. Useful for profiling or logging. + +```js +function traceFunction (method, queryInfo, query) { + console.log('starting ' + method + ' query'); + + return function (err, result, millis) { + console.log('finished ' + method + ' query in ' + millis + 'ms'); + }; +} + +mquery().setTraceFunction(traceFunction).findOne({name: 'Joe'}, cb); +``` + +The trace function is passed (method, queryInfo, query) + +- method is the name of the method being called (e.g. findOne) +- queryInfo contains information about the query: + - conditions: query conditions/criteria + - options: options such as sort, fields, etc + - doc: document being updated +- query is the query object + +The trace function should return a callback function which accepts: +- err: error, if any +- result: result, if any +- millis: time spent waiting for query result + +NOTE: stream requests are not traced. + +### mquery.setGlobalTraceFunction(func) + +Similar to `setTraceFunction()` but automatically applied to all queries. + +```js +mquery.setTraceFunction(traceFunction); +``` + +### mquery.canMerge(conditions) + +Determines if `conditions` can be merged using `mquery().merge()`. + +```js +var query = mquery({ type: 'drum' }); +var okToMerge = mquery.canMerge(anObject) +if (okToMerge) { + query.merge(anObject); +} +``` + +## mquery.use$geoWithin + +MongoDB 2.4 introduced the `$geoWithin` operator which replaces and is 100% backward compatible with `$within`. As of mquery 0.2, we default to using `$geoWithin` for all `within()` calls. + +If you are running MongoDB < 2.4 this will be problematic. To force `mquery` to be backward compatible and always use `$within`, set the `mquery.use$geoWithin` flag to `false`. + +```js +mquery.use$geoWithin = false; +``` + +## Custom Base Queries + +Often times we want custom base queries that encapsulate predefined criteria. With `mquery` this is easy. First create the query you want to reuse and call its `toConstructor()` method which returns a new subclass of `mquery` that retains all options and criteria of the original. + +```js +var greatMovies = mquery(movieCollection).where('rating').gte(4.5).toConstructor(); + +// use it! +const n = await greatMovies().count(); +console.log('There are %d great movies', n); + +const docs = await greatMovies().where({ name: /^Life/ }).select('name').find(); +console.log(docs); +``` + +## Validation + +Method and options combinations are checked for validity at runtime to prevent creation of invalid query constructs. For example, a `distinct` query does not support specifying options like `hint` or field selection. In this case an error will be thrown so you can catch these mistakes in development. + +## Debug support + +Debug mode is provided through the use of the [debug](https://github.com/visionmedia/debug) module. To enable: + +```sh +DEBUG=mquery node yourprogram.js +``` + +Read the debug module documentation for more details. + +## General compatibility + +### ObjectIds + +`mquery` clones query arguments before passing them to a `collection` method for execution. +This prevents accidental side-affects to the objects you pass. +To clone `ObjectIds` we need to make some assumptions. + +First, to check if an object is an `ObjectId`, we check its constructors name. If it matches either +`ObjectId` or `ObjectID` we clone it. + +To clone `ObjectIds`, we call its optional `clone` method. If a `clone` method does not exist, we fall +back to calling `new obj.constructor(obj.id)`. We assume, for compatibility with the +Node.js driver, that the `ObjectId` instance has a public `id` property and that +when creating an `ObjectId` instance we can pass that `id` as an argument. + +#### Read Preferences + +`mquery` supports specifying [Read Preferences](https://www.mongodb.com/docs/manual/core/read-preference/) to control from which MongoDB node your query will read. +The Read Preferences spec also support specifying tags. To pass tags, some +drivers (Node.js driver) require passing a special constructor that handles both the read preference and its tags. +If you need to specify tags, pass an instance of your drivers ReadPreference constructor or roll your own. `mquery` will store whatever you provide and pass later to your collection during execution. + +## Future goals + +- mongo shell compatibility +- browser compatibility + +## Installation + +```sh +npm install mquery +``` + +## License + +[MIT](https://github.com/aheckmann/mquery/blob/master/LICENSE) diff --git a/week-3/04-course-app-hard/node_modules/mquery/SECURITY.md b/week-3/04-course-app-hard/node_modules/mquery/SECURITY.md new file mode 100644 index 000000000..41b89d834 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/SECURITY.md @@ -0,0 +1 @@ +Please follow the instructions on [Tidelift's security page](https://tidelift.com/docs/security) to report a security issue. diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/collection/collection.js b/week-3/04-course-app-hard/node_modules/mquery/lib/collection/collection.js new file mode 100644 index 000000000..b473f8956 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/collection/collection.js @@ -0,0 +1,45 @@ +'use strict'; + +/** + * methods a collection must implement + */ + +const methods = [ + 'find', + 'findOne', + 'updateMany', + 'updateOne', + 'replaceOne', + 'count', + 'distinct', + 'findOneAndDelete', + 'findOneAndUpdate', + 'aggregate', + 'findCursor', + 'deleteOne', + 'deleteMany' +]; + +/** + * Collection base class from which implementations inherit + */ + +function Collection() {} + +for (let i = 0, len = methods.length; i < len; ++i) { + const method = methods[i]; + Collection.prototype[method] = notImplemented(method); +} + +module.exports = exports = Collection; +Collection.methods = methods; + +/** + * creates a function which throws an implementation error + */ + +function notImplemented(method) { + return function() { + throw new Error('collection.' + method + ' not implemented'); + }; +} diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/collection/index.js b/week-3/04-course-app-hard/node_modules/mquery/lib/collection/index.js new file mode 100644 index 000000000..4faa03220 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/collection/index.js @@ -0,0 +1,13 @@ +'use strict'; + +const env = require('../env'); + +if ('unknown' == env.type) { + throw new Error('Unknown environment'); +} + +module.exports = + env.isNode ? require('./node') : + env.isMongo ? require('./collection') : + require('./collection'); + diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/collection/node.js b/week-3/04-course-app-hard/node_modules/mquery/lib/collection/node.js new file mode 100644 index 000000000..6580f51b3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/collection/node.js @@ -0,0 +1,114 @@ +'use strict'; + +/** + * Module dependencies + */ + +const Collection = require('./collection'); + +class NodeCollection extends Collection { + constructor(col) { + super(); + + this.collection = col; + this.collectionName = col.collectionName; + } + + /** + * find(match, options) + */ + async find(match, options) { + const cursor = this.collection.find(match, options); + + return cursor.toArray(); + } + + /** + * findOne(match, options) + */ + async findOne(match, options) { + return this.collection.findOne(match, options); + } + + /** + * count(match, options) + */ + async count(match, options) { + return this.collection.count(match, options); + } + + /** + * distinct(prop, match, options) + */ + async distinct(prop, match, options) { + return this.collection.distinct(prop, match, options); + } + + /** + * updateMany(match, update, options) + */ + async updateMany(match, update, options) { + return this.collection.updateMany(match, update, options); + } + + /** + * updateOne(match, update, options) + */ + async updateOne(match, update, options) { + return this.collection.updateOne(match, update, options); + } + + /** + * replaceOne(match, update, options) + */ + async replaceOne(match, update, options) { + return this.collection.replaceOne(match, update, options); + } + + /** + * deleteOne(match, options) + */ + async deleteOne(match, options) { + return this.collection.deleteOne(match, options); + } + + /** + * deleteMany(match, options) + */ + async deleteMany(match, options) { + return this.collection.deleteMany(match, options); + } + + /** + * findOneAndDelete(match, options, function(err[, result]) + */ + async findOneAndDelete(match, options) { + return this.collection.findOneAndDelete(match, options); + } + + /** + * findOneAndUpdate(match, update, options) + */ + async findOneAndUpdate(match, update, options) { + return this.collection.findOneAndUpdate(match, update, options); + } + + /** + * var cursor = findCursor(match, options) + */ + findCursor(match, options) { + return this.collection.find(match, options); + } + + /** + * aggregation(operators...) + * TODO + */ +} + + +/** + * Expose + */ + +module.exports = exports = NodeCollection; diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/env.js b/week-3/04-course-app-hard/node_modules/mquery/lib/env.js new file mode 100644 index 000000000..d3d225b7c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/env.js @@ -0,0 +1,22 @@ +'use strict'; + +exports.isNode = 'undefined' != typeof process + && 'object' == typeof module + && 'object' == typeof global + && 'function' == typeof Buffer + && process.argv; + +exports.isMongo = !exports.isNode + && 'function' == typeof printjson + && 'function' == typeof ObjectId + && 'function' == typeof rs + && 'function' == typeof sh; + +exports.isBrowser = !exports.isNode + && !exports.isMongo + && 'undefined' != typeof window; + +exports.type = exports.isNode ? 'node' + : exports.isMongo ? 'mongo' + : exports.isBrowser ? 'browser' + : 'unknown'; diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/mquery.js b/week-3/04-course-app-hard/node_modules/mquery/lib/mquery.js new file mode 100644 index 000000000..dc874ad7c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/mquery.js @@ -0,0 +1,2705 @@ +'use strict'; + +/** + * Dependencies + */ + +const assert = require('assert'); +const util = require('util'); +const utils = require('./utils'); +const debug = require('debug')('mquery'); + +/** + * Query constructor used for building queries. + * + * #### Example: + * + * var query = new Query({ name: 'mquery' }); + * query.setOptions({ collection: moduleCollection }) + * await query.where('age').gte(21).exec(); + * + * @param {Object} [criteria] criteria for the query OR the collection instance to use + * @param {Object} [options] + * @api public + */ + +function Query(criteria, options) { + if (!(this instanceof Query)) + return new Query(criteria, options); + + const proto = this.constructor.prototype; + + this.op = proto.op || undefined; + + this.options = Object.assign({}, proto.options); + + this._conditions = proto._conditions + ? utils.clone(proto._conditions) + : {}; + + this._fields = proto._fields + ? utils.clone(proto._fields) + : undefined; + + this._updateDoc = proto._updateDoc + ? utils.clone(proto._updateDoc) + : undefined; + + this._path = proto._path || undefined; + this._distinctDoc = proto._distinctDoc || undefined; + this._collection = proto._collection || undefined; + this._traceFunction = proto._traceFunction || undefined; + + if (options) { + this.setOptions(options); + } + + if (criteria) { + this.find(criteria); + } +} + +/** + * This is a parameter that the user can set which determines if mquery + * uses $within or $geoWithin for queries. It defaults to true which + * means $geoWithin will be used. If using MongoDB < 2.4 you should + * set this to false. + * + * @api public + * @property use$geoWithin + */ + +let $withinCmd = '$geoWithin'; +Object.defineProperty(Query, 'use$geoWithin', { + get: function() { return $withinCmd == '$geoWithin'; }, + set: function(v) { + if (true === v) { + // mongodb >= 2.4 + $withinCmd = '$geoWithin'; + } else { + $withinCmd = '$within'; + } + } +}); + +/** + * Converts this query to a constructor function with all arguments and options retained. + * + * #### Example: + * + * // Create a query that will read documents with a "video" category from + * // `aCollection` on the primary node in the replica-set unless it is down, + * // in which case we'll read from a secondary node. + * var query = mquery({ category: 'video' }) + * query.setOptions({ collection: aCollection, read: 'primaryPreferred' }); + * + * // create a constructor based off these settings + * var Video = query.toConstructor(); + * + * // Video is now a subclass of mquery() and works the same way but with the + * // default query parameters and options set. + * + * // run a query with the previous settings but filter for movies with names + * // that start with "Life". + * Video().where({ name: /^Life/ }).exec(cb); + * + * @return {Query} new Query + * @api public + */ + +Query.prototype.toConstructor = function toConstructor() { + function CustomQuery(criteria, options) { + if (!(this instanceof CustomQuery)) + return new CustomQuery(criteria, options); + Query.call(this, criteria, options); + } + + utils.inherits(CustomQuery, Query); + + // set inherited defaults + const p = CustomQuery.prototype; + + p.options = {}; + p.setOptions(this.options); + + p.op = this.op; + p._conditions = utils.clone(this._conditions); + p._fields = utils.clone(this._fields); + p._updateDoc = utils.clone(this._updateDoc); + p._path = this._path; + p._distinctDoc = this._distinctDoc; + p._collection = this._collection; + p._traceFunction = this._traceFunction; + + return CustomQuery; +}; + +/** + * Sets query options. + * + * #### Options: + * + * - [tailable](http://www.mongodb.org/display/DOCS/Tailable+Cursors) * + * - [sort](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Bsort(\)%7D%7D) * + * - [limit](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Blimit%28%29%7D%7D) * + * - [skip](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Bskip%28%29%7D%7D) * + * - [maxTime](http://docs.mongodb.org/manual/reference/operator/meta/maxTimeMS/#op._S_maxTimeMS) * + * - [batchSize](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7BbatchSize%28%29%7D%7D) * + * - [comment](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24comment) * + * - [hint](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24hint) * + * - [slaveOk](http://docs.mongodb.org/manual/applications/replication/#read-preference) * + * - [safe](http://www.mongodb.org/display/DOCS/getLastError+Command) + * - collection the collection to query against + * + * _* denotes a query helper method is also available_ + * + * @param {Object} options + * @api public + */ + +Query.prototype.setOptions = function(options) { + if (!(options && utils.isObject(options))) + return this; + + // set arbitrary options + const methods = utils.keys(options); + let method; + + for (let i = 0; i < methods.length; ++i) { + method = methods[i]; + + // use methods if exist (safer option manipulation) + if ('function' == typeof this[method]) { + const args = Array.isArray(options[method]) + ? options[method] + : [options[method]]; + this[method].apply(this, args); + } else { + this.options[method] = options[method]; + } + } + + return this; +}; + +/** + * Sets this Querys collection. + * + * @param {Collection} coll + * @return {Query} this + */ + +Query.prototype.collection = function collection(coll) { + this._collection = new Query.Collection(coll); + + return this; +}; + +/** + * Adds a collation to this op (MongoDB 3.4 and up) + * + * #### Example: + * + * query.find().collation({ locale: "en_US", strength: 1 }) + * + * @param {Object} value + * @return {Query} this + * @see MongoDB docs https://docs.mongodb.com/manual/reference/method/cursor.collation/#cursor.collation + * @api public + */ + +Query.prototype.collation = function(value) { + this.options.collation = value; + return this; +}; + +/** + * Specifies a `$where` condition + * + * Use `$where` when you need to select documents using a JavaScript expression. + * + * #### Example: + * + * query.$where('this.comments.length > 10 || this.name.length > 5') + * + * query.$where(function () { + * return this.comments.length > 10 || this.name.length > 5; + * }) + * + * @param {String|Function} js javascript string or function + * @return {Query} this + * @memberOf Query + * @method $where + * @api public + */ + +Query.prototype.$where = function(js) { + this._conditions.$where = js; + return this; +}; + +/** + * Specifies a `path` for use with chaining. + * + * #### Example: + * + * // instead of writing: + * await User.find({age: {$gte: 21, $lte: 65}}); + * + * // we can instead write: + * User.where('age').gte(21).lte(65); + * + * // passing query conditions is permitted + * User.find().where({ name: 'vonderful' }) + * + * // chaining + * await User + * .where('age').gte(21).lte(65) + * .where('name', /^vonderful/i) + * .where('friends').slice(10) + * .exec() + * + * @param {String} [path] + * @param {Object} [val] + * @return {Query} this + * @api public + */ + +Query.prototype.where = function() { + if (!arguments.length) return this; + if (!this.op) this.op = 'find'; + + const type = typeof arguments[0]; + + if ('string' == type) { + this._path = arguments[0]; + + if (2 === arguments.length) { + this._conditions[this._path] = arguments[1]; + } + + return this; + } + + if ('object' == type && !Array.isArray(arguments[0])) { + return this.merge(arguments[0]); + } + + throw new TypeError('path must be a string or object'); +}; + +/** + * Specifies the complementary comparison value for paths specified with `where()` + * + * #### Example: + * + * User.where('age').equals(49); + * + * // is the same as + * + * User.where('age', 49); + * + * @param {Object} val + * @return {Query} this + * @api public + */ + +Query.prototype.equals = function equals(val) { + this._ensurePath('equals'); + const path = this._path; + this._conditions[path] = val; + return this; +}; + +/** + * Specifies the complementary comparison value for paths specified with `where()` + * This is alias of `equals` + * + * #### Example: + * + * User.where('age').eq(49); + * + * // is the same as + * + * User.shere('age').equals(49); + * + * // is the same as + * + * User.where('age', 49); + * + * @param {Object} val + * @return {Query} this + * @api public + */ + +Query.prototype.eq = function eq(val) { + this._ensurePath('eq'); + const path = this._path; + this._conditions[path] = val; + return this; +}; + +/** + * Specifies arguments for an `$or` condition. + * + * #### Example: + * + * query.or([{ color: 'red' }, { status: 'emergency' }]) + * + * @param {Array} array array of conditions + * @return {Query} this + * @api public + */ + +Query.prototype.or = function or(array) { + const or = this._conditions.$or || (this._conditions.$or = []); + if (!Array.isArray(array)) array = [array]; + or.push.apply(or, array); + return this; +}; + +/** + * Specifies arguments for a `$nor` condition. + * + * #### Example: + * + * query.nor([{ color: 'green' }, { status: 'ok' }]) + * + * @param {Array} array array of conditions + * @return {Query} this + * @api public + */ + +Query.prototype.nor = function nor(array) { + const nor = this._conditions.$nor || (this._conditions.$nor = []); + if (!Array.isArray(array)) array = [array]; + nor.push.apply(nor, array); + return this; +}; + +/** + * Specifies arguments for a `$and` condition. + * + * #### Example: + * + * query.and([{ color: 'green' }, { status: 'ok' }]) + * + * @see $and http://docs.mongodb.org/manual/reference/operator/and/ + * @param {Array} array array of conditions + * @return {Query} this + * @api public + */ + +Query.prototype.and = function and(array) { + const and = this._conditions.$and || (this._conditions.$and = []); + if (!Array.isArray(array)) array = [array]; + and.push.apply(and, array); + return this; +}; + +/** + * Specifies a $gt query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * #### Example: + * + * Thing.find().where('age').gt(21) + * + * // or + * Thing.find().gt('age', 21) + * + * @method gt + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a $gte query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method gte + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a $lt query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method lt + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a $lte query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method lte + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a $ne query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method ne + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies an $in query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method in + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies an $nin query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method nin + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies an $all query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method all + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a $size query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method size + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/** + * Specifies a $regex query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method regex + * @memberOf Query + * @param {String} [path] + * @param {String|RegExp} val + * @api public + */ + +/** + * Specifies a $maxDistance query condition. + * + * When called with one argument, the most recent path passed to `where()` is used. + * + * @method maxDistance + * @memberOf Query + * @param {String} [path] + * @param {Number} val + * @api public + */ + +/*! + * gt, gte, lt, lte, ne, in, nin, all, regex, size, maxDistance + * + * Thing.where('type').nin(array) + */ + +'gt gte lt lte ne in nin all regex size maxDistance minDistance'.split(' ').forEach(function($conditional) { + Query.prototype[$conditional] = function() { + let path, val; + + if (1 === arguments.length) { + this._ensurePath($conditional); + val = arguments[0]; + path = this._path; + } else { + val = arguments[1]; + path = arguments[0]; + } + + const conds = this._conditions[path] === null || typeof this._conditions[path] === 'object' ? + this._conditions[path] : + (this._conditions[path] = {}); + conds['$' + $conditional] = val; + return this; + }; +}); + +/** + * Specifies a `$mod` condition + * + * @param {String} [path] + * @param {Number} val + * @return {Query} this + * @api public + */ + +Query.prototype.mod = function() { + let val, path; + + if (1 === arguments.length) { + this._ensurePath('mod'); + val = arguments[0]; + path = this._path; + } else if (2 === arguments.length && !Array.isArray(arguments[1])) { + this._ensurePath('mod'); + val = [arguments[0], arguments[1]]; + path = this._path; + } else if (3 === arguments.length) { + val = [arguments[1], arguments[2]]; + path = arguments[0]; + } else { + val = arguments[1]; + path = arguments[0]; + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds.$mod = val; + return this; +}; + +/** + * Specifies an `$exists` condition + * + * #### Example: + * + * // { name: { $exists: true }} + * Thing.where('name').exists() + * Thing.where('name').exists(true) + * Thing.find().exists('name') + * + * // { name: { $exists: false }} + * Thing.where('name').exists(false); + * Thing.find().exists('name', false); + * + * @param {String} [path] + * @param {Number} val + * @return {Query} this + * @api public + */ + +Query.prototype.exists = function() { + let path, val; + + if (0 === arguments.length) { + this._ensurePath('exists'); + path = this._path; + val = true; + } else if (1 === arguments.length) { + if ('boolean' === typeof arguments[0]) { + this._ensurePath('exists'); + path = this._path; + val = arguments[0]; + } else { + path = arguments[0]; + val = true; + } + } else if (2 === arguments.length) { + path = arguments[0]; + val = arguments[1]; + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds.$exists = val; + return this; +}; + +/** + * Specifies an `$elemMatch` condition + * + * #### Example: + * + * query.elemMatch('comment', { author: 'autobot', votes: {$gte: 5}}) + * + * query.where('comment').elemMatch({ author: 'autobot', votes: {$gte: 5}}) + * + * query.elemMatch('comment', function (elem) { + * elem.where('author').equals('autobot'); + * elem.where('votes').gte(5); + * }) + * + * query.where('comment').elemMatch(function (elem) { + * elem.where({ author: 'autobot' }); + * elem.where('votes').gte(5); + * }) + * + * @param {String|Object|Function} path + * @param {Object|Function} criteria + * @return {Query} this + * @api public + */ + +Query.prototype.elemMatch = function() { + if (null == arguments[0]) + throw new TypeError('Invalid argument'); + + let fn, path, criteria; + + if ('function' === typeof arguments[0]) { + this._ensurePath('elemMatch'); + path = this._path; + fn = arguments[0]; + } else if (utils.isObject(arguments[0])) { + this._ensurePath('elemMatch'); + path = this._path; + criteria = arguments[0]; + } else if ('function' === typeof arguments[1]) { + path = arguments[0]; + fn = arguments[1]; + } else if (arguments[1] && utils.isObject(arguments[1])) { + path = arguments[0]; + criteria = arguments[1]; + } else { + throw new TypeError('Invalid argument'); + } + + if (fn) { + criteria = new Query; + fn(criteria); + criteria = criteria._conditions; + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds.$elemMatch = criteria; + return this; +}; + +// Spatial queries + +/** + * Sugar for geo-spatial queries. + * + * #### Example: + * + * query.within().box() + * query.within().circle() + * query.within().geometry() + * + * query.where('loc').within({ center: [50,50], radius: 10, unique: true, spherical: true }); + * query.where('loc').within({ box: [[40.73, -73.9], [40.7, -73.988]] }); + * query.where('loc').within({ polygon: [[],[],[],[]] }); + * + * query.where('loc').within([], [], []) // polygon + * query.where('loc').within([], []) // box + * query.where('loc').within({ type: 'LineString', coordinates: [...] }); // geometry + * + * #### Note: + * + * Must be used after `where()`. + * + * @memberOf Query + * @return {Query} this + * @api public + */ + +Query.prototype.within = function within() { + // opinionated, must be used after where + this._ensurePath('within'); + this._geoComparison = $withinCmd; + + if (0 === arguments.length) { + return this; + } + + if (2 === arguments.length) { + return this.box.apply(this, arguments); + } else if (2 < arguments.length) { + return this.polygon.apply(this, arguments); + } + + const area = arguments[0]; + + if (!area) + throw new TypeError('Invalid argument'); + + if (area.center) + return this.circle(area); + + if (area.box) + return this.box.apply(this, area.box); + + if (area.polygon) + return this.polygon.apply(this, area.polygon); + + if (area.type && area.coordinates) + return this.geometry(area); + + throw new TypeError('Invalid argument'); +}; + +/** + * Specifies a $box condition + * + * #### Example: + * + * var lowerLeft = [40.73083, -73.99756] + * var upperRight= [40.741404, -73.988135] + * + * query.where('loc').within().box(lowerLeft, upperRight) + * query.box('loc', lowerLeft, upperRight ) + * + * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing + * @see Query#within #query_Query-within + * @param {String} path + * @param {Object} val + * @return {Query} this + * @api public + */ + +Query.prototype.box = function() { + let path, box; + + if (3 === arguments.length) { + // box('loc', [], []) + path = arguments[0]; + box = [arguments[1], arguments[2]]; + } else if (2 === arguments.length) { + // box([], []) + this._ensurePath('box'); + path = this._path; + box = [arguments[0], arguments[1]]; + } else { + throw new TypeError('Invalid argument'); + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds[this._geoComparison || $withinCmd] = { $box: box }; + return this; +}; + +/** + * Specifies a $polygon condition + * + * #### Example: + * + * query.where('loc').within().polygon([10,20], [13, 25], [7,15]) + * query.polygon('loc', [10,20], [13, 25], [7,15]) + * + * @param {String|Array} [path] + * @param {Array|Object} [val] + * @return {Query} this + * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing + * @api public + */ + +Query.prototype.polygon = function() { + let val, path; + + if ('string' == typeof arguments[0]) { + // polygon('loc', [],[],[]) + val = Array.from(arguments); + path = val.shift(); + } else { + // polygon([],[],[]) + this._ensurePath('polygon'); + path = this._path; + val = Array.from(arguments); + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds[this._geoComparison || $withinCmd] = { $polygon: val }; + return this; +}; + +/** + * Specifies a $center or $centerSphere condition. + * + * #### Example: + * + * var area = { center: [50, 50], radius: 10, unique: true } + * query.where('loc').within().circle(area) + * query.center('loc', area); + * + * // for spherical calculations + * var area = { center: [50, 50], radius: 10, unique: true, spherical: true } + * query.where('loc').within().circle(area) + * query.center('loc', area); + * + * @param {String} [path] + * @param {Object} area + * @return {Query} this + * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing + * @api public + */ + +Query.prototype.circle = function() { + let path, val; + + if (1 === arguments.length) { + this._ensurePath('circle'); + path = this._path; + val = arguments[0]; + } else if (2 === arguments.length) { + path = arguments[0]; + val = arguments[1]; + } else { + throw new TypeError('Invalid argument'); + } + + if (!('radius' in val && val.center)) + throw new Error('center and radius are required'); + + const conds = this._conditions[path] || (this._conditions[path] = {}); + + const type = val.spherical + ? '$centerSphere' + : '$center'; + + const wKey = this._geoComparison || $withinCmd; + conds[wKey] = {}; + conds[wKey][type] = [val.center, val.radius]; + + if ('unique' in val) + conds[wKey].$uniqueDocs = !!val.unique; + + return this; +}; + +/** + * Specifies a `$near` or `$nearSphere` condition + * + * These operators return documents sorted by distance. + * + * #### Example: + * + * query.where('loc').near({ center: [10, 10] }); + * query.where('loc').near({ center: [10, 10], maxDistance: 5 }); + * query.where('loc').near({ center: [10, 10], maxDistance: 5, spherical: true }); + * query.near('loc', { center: [10, 10], maxDistance: 5 }); + * query.near({ center: { type: 'Point', coordinates: [..] }}) + * query.near().geometry({ type: 'Point', coordinates: [..] }) + * + * @param {String} [path] + * @param {Object} val + * @return {Query} this + * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing + * @api public + */ + +Query.prototype.near = function near() { + let path, val; + + this._geoComparison = '$near'; + + if (0 === arguments.length) { + return this; + } else if (1 === arguments.length) { + this._ensurePath('near'); + path = this._path; + val = arguments[0]; + } else if (2 === arguments.length) { + path = arguments[0]; + val = arguments[1]; + } else { + throw new TypeError('Invalid argument'); + } + + if (!val.center) { + throw new Error('center is required'); + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + + const type = val.spherical + ? '$nearSphere' + : '$near'; + + // center could be a GeoJSON object or an Array + if (Array.isArray(val.center)) { + conds[type] = val.center; + + const radius = 'maxDistance' in val + ? val.maxDistance + : null; + + if (null != radius) { + conds.$maxDistance = radius; + } + if (null != val.minDistance) { + conds.$minDistance = val.minDistance; + } + } else { + // GeoJSON? + if (val.center.type != 'Point' || !Array.isArray(val.center.coordinates)) { + throw new Error(util.format('Invalid GeoJSON specified for %s', type)); + } + conds[type] = { $geometry: val.center }; + + // MongoDB 2.6 insists on maxDistance being in $near / $nearSphere + if ('maxDistance' in val) { + conds[type]['$maxDistance'] = val.maxDistance; + } + if ('minDistance' in val) { + conds[type]['$minDistance'] = val.minDistance; + } + } + + return this; +}; + +/** + * Declares an intersects query for `geometry()`. + * + * #### Example: + * + * query.where('path').intersects().geometry({ + * type: 'LineString' + * , coordinates: [[180.0, 11.0], [180, 9.0]] + * }) + * + * query.where('path').intersects({ + * type: 'LineString' + * , coordinates: [[180.0, 11.0], [180, 9.0]] + * }) + * + * @param {Object} [arg] + * @return {Query} this + * @api public + */ + +Query.prototype.intersects = function intersects() { + // opinionated, must be used after where + this._ensurePath('intersects'); + + this._geoComparison = '$geoIntersects'; + + if (0 === arguments.length) { + return this; + } + + const area = arguments[0]; + + if (null != area && area.type && area.coordinates) + return this.geometry(area); + + throw new TypeError('Invalid argument'); +}; + +/** + * Specifies a `$geometry` condition + * + * #### Example: + * + * var polyA = [[[ 10, 20 ], [ 10, 40 ], [ 30, 40 ], [ 30, 20 ]]] + * query.where('loc').within().geometry({ type: 'Polygon', coordinates: polyA }) + * + * // or + * var polyB = [[ 0, 0 ], [ 1, 1 ]] + * query.where('loc').within().geometry({ type: 'LineString', coordinates: polyB }) + * + * // or + * var polyC = [ 0, 0 ] + * query.where('loc').within().geometry({ type: 'Point', coordinates: polyC }) + * + * // or + * query.where('loc').intersects().geometry({ type: 'Point', coordinates: polyC }) + * + * #### Note: + * + * `geometry()` **must** come after either `intersects()` or `within()`. + * + * The `object` argument must contain `type` and `coordinates` properties. + * - type {String} + * - coordinates {Array} + * + * The most recent path passed to `where()` is used. + * + * @param {Object} object Must contain a `type` property which is a String and a `coordinates` property which is an Array. See the examples. + * @return {Query} this + * @see http://docs.mongodb.org/manual/release-notes/2.4/#new-geospatial-indexes-with-geojson-and-improved-spherical-geometry + * @see http://www.mongodb.org/display/DOCS/Geospatial+Indexing + * @see $geometry http://docs.mongodb.org/manual/reference/operator/geometry/ + * @api public + */ + +Query.prototype.geometry = function geometry() { + if (!('$within' == this._geoComparison || + '$geoWithin' == this._geoComparison || + '$near' == this._geoComparison || + '$geoIntersects' == this._geoComparison)) { + throw new Error('geometry() must come after `within()`, `intersects()`, or `near()'); + } + + let val, path; + + if (1 === arguments.length) { + this._ensurePath('geometry'); + path = this._path; + val = arguments[0]; + } else { + throw new TypeError('Invalid argument'); + } + + if (!(val.type && Array.isArray(val.coordinates))) { + throw new TypeError('Invalid argument'); + } + + const conds = this._conditions[path] || (this._conditions[path] = {}); + conds[this._geoComparison] = { $geometry: val }; + + return this; +}; + +// end spatial + +/** + * Specifies which document fields to include or exclude + * + * #### String syntax + * + * When passing a string, prefixing a path with `-` will flag that path as excluded. When a path does not have the `-` prefix, it is included. + * + * #### Example: + * + * // include a and b, exclude c + * query.select('a b -c'); + * + * // or you may use object notation, useful when + * // you have keys already prefixed with a "-" + * query.select({a: 1, b: 1, c: 0}); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @param {Object|String} arg + * @return {Query} this + * @see SchemaType + * @api public + */ + +Query.prototype.select = function select() { + let arg = arguments[0]; + if (!arg) return this; + + if (arguments.length !== 1) { + throw new Error('Invalid select: select only takes 1 argument'); + } + + this._validate('select'); + + const fields = this._fields || (this._fields = {}); + const type = typeof arg; + let i, len; + + if (('string' == type || utils.isArgumentsObject(arg)) && + 'number' == typeof arg.length || Array.isArray(arg)) { + if ('string' == type) + arg = arg.split(/\s+/); + + for (i = 0, len = arg.length; i < len; ++i) { + let field = arg[i]; + if (!field) continue; + const include = '-' == field[0] ? 0 : 1; + if (include === 0) field = field.substring(1); + fields[field] = include; + } + + return this; + } + + if (utils.isObject(arg)) { + const keys = utils.keys(arg); + for (i = 0; i < keys.length; ++i) { + fields[keys[i]] = arg[keys[i]]; + } + return this; + } + + throw new TypeError('Invalid select() argument. Must be string or object.'); +}; + +/** + * Specifies a $slice condition for a `path` + * + * #### Example: + * + * query.slice('comments', 5) + * query.slice('comments', -5) + * query.slice('comments', [10, 5]) + * query.where('comments').slice(5) + * query.where('comments').slice([-10, 5]) + * + * @param {String} [path] + * @param {Number} val number/range of elements to slice + * @return {Query} this + * @see mongodb http://www.mongodb.org/display/DOCS/Retrieving+a+Subset+of+Fields#RetrievingaSubsetofFields-RetrievingaSubrangeofArrayElements + * @api public + */ + +Query.prototype.slice = function() { + if (0 === arguments.length) + return this; + + this._validate('slice'); + + let path, val; + + if (1 === arguments.length) { + const arg = arguments[0]; + if (typeof arg === 'object' && !Array.isArray(arg)) { + const keys = Object.keys(arg); + const numKeys = keys.length; + for (let i = 0; i < numKeys; ++i) { + this.slice(keys[i], arg[keys[i]]); + } + return this; + } + this._ensurePath('slice'); + path = this._path; + val = arguments[0]; + } else if (2 === arguments.length) { + if ('number' === typeof arguments[0]) { + this._ensurePath('slice'); + path = this._path; + val = [arguments[0], arguments[1]]; + } else { + path = arguments[0]; + val = arguments[1]; + } + } else if (3 === arguments.length) { + path = arguments[0]; + val = [arguments[1], arguments[2]]; + } + + const myFields = this._fields || (this._fields = {}); + myFields[path] = { $slice: val }; + return this; +}; + +/** + * Sets the sort order + * + * If an object is passed, values allowed are 'asc', 'desc', 'ascending', 'descending', 1, and -1. + * + * If a string is passed, it must be a space delimited list of path names. The sort order of each path is ascending unless the path name is prefixed with `-` which will be treated as descending. + * + * #### Example: + * + * // these are equivalent + * query.sort({ field: 'asc', test: -1 }); + * query.sort('field -test'); + * query.sort([['field', 1], ['test', -1]]); + * + * #### Note: + * + * - The array syntax `.sort([['field', 1], ['test', -1]])` can only be used with [mongodb driver >= 2.0.46](https://github.com/mongodb/node-mongodb-native/blob/2.1/HISTORY.md#2046-2015-10-15). + * - Cannot be used with `distinct()` + * + * @param {Object|String|Array} arg + * @return {Query} this + * @api public + */ + +Query.prototype.sort = function(arg) { + if (!arg) return this; + let i, len, field; + + this._validate('sort'); + + const type = typeof arg; + + // .sort([['field', 1], ['test', -1]]) + if (Array.isArray(arg)) { + len = arg.length; + for (i = 0; i < arg.length; ++i) { + if (!Array.isArray(arg[i])) { + throw new Error('Invalid sort() argument, must be array of arrays'); + } + _pushArr(this.options, arg[i][0], arg[i][1]); + } + return this; + } + + // .sort('field -test') + if (1 === arguments.length && 'string' == type) { + arg = arg.split(/\s+/); + len = arg.length; + for (i = 0; i < len; ++i) { + field = arg[i]; + if (!field) continue; + const ascend = '-' == field[0] ? -1 : 1; + if (ascend === -1) field = field.substring(1); + push(this.options, field, ascend); + } + + return this; + } + + // .sort({ field: 1, test: -1 }) + if (utils.isObject(arg)) { + const keys = utils.keys(arg); + for (i = 0; i < keys.length; ++i) { + field = keys[i]; + push(this.options, field, arg[field]); + } + + return this; + } + + if (typeof Map !== 'undefined' && arg instanceof Map) { + _pushMap(this.options, arg); + return this; + } + throw new TypeError('Invalid sort() argument. Must be a string, object, or array.'); +}; + +/*! + * @ignore + */ + +const _validSortValue = { + 1: 1, + '-1': -1, + asc: 1, + ascending: 1, + desc: -1, + descending: -1 +}; + +function push(opts, field, value) { + if (Array.isArray(opts.sort)) { + throw new TypeError('Can\'t mix sort syntaxes. Use either array or object:' + + '\n- `.sort([[\'field\', 1], [\'test\', -1]])`' + + '\n- `.sort({ field: 1, test: -1 })`'); + } + + let s; + if (value && value.$meta) { + s = opts.sort || (opts.sort = {}); + s[field] = { $meta: value.$meta }; + return; + } + + s = opts.sort || (opts.sort = {}); + let val = String(value || 1).toLowerCase(); + val = _validSortValue[val]; + if (!val) throw new TypeError('Invalid sort value: { ' + field + ': ' + value + ' }'); + + s[field] = val; +} + +function _pushArr(opts, field, value) { + opts.sort = opts.sort || []; + if (!Array.isArray(opts.sort)) { + throw new TypeError('Can\'t mix sort syntaxes. Use either array or object:' + + '\n- `.sort([[\'field\', 1], [\'test\', -1]])`' + + '\n- `.sort({ field: 1, test: -1 })`'); + } + + let val = String(value || 1).toLowerCase(); + val = _validSortValue[val]; + if (!val) throw new TypeError('Invalid sort value: [ ' + field + ', ' + value + ' ]'); + + opts.sort.push([field, val]); +} + +function _pushMap(opts, map) { + opts.sort = opts.sort || new Map(); + if (!(opts.sort instanceof Map)) { + throw new TypeError('Can\'t mix sort syntaxes. Use either array or ' + + 'object or map consistently'); + } + map.forEach(function(value, key) { + let val = String(value || 1).toLowerCase(); + val = _validSortValue[val]; + if (!val) throw new TypeError('Invalid sort value: < ' + key + ': ' + value + ' >'); + + opts.sort.set(key, val); + }); +} + + +/** + * Specifies the limit option. + * + * #### Example: + * + * query.limit(20) + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method limit + * @memberOf Query + * @param {Number} val + * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Blimit%28%29%7D%7D + * @api public + */ +/** + * Specifies the skip option. + * + * #### Example: + * + * query.skip(100).limit(20) + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method skip + * @memberOf Query + * @param {Number} val + * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7Bskip%28%29%7D%7D + * @api public + */ +/** + * Specifies the batchSize option. + * + * #### Example: + * + * query.batchSize(100) + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method batchSize + * @memberOf Query + * @param {Number} val + * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%7B%7BbatchSize%28%29%7D%7D + * @api public + */ +/** + * Specifies the `comment` option. + * + * #### Example: + * + * query.comment('login query') + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @method comment + * @memberOf Query + * @param {Number} val + * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24comment + * @api public + */ + +/*! + * limit, skip, batchSize, comment + * + * Sets these associated options. + * + * query.comment('feed query'); + */ + +['limit', 'skip', 'batchSize', 'comment'].forEach(function(method) { + Query.prototype[method] = function(v) { + this._validate(method); + this.options[method] = v; + return this; + }; +}); + +/** + * Specifies the maxTimeMS option. + * + * #### Example: + * + * query.maxTime(100) + * query.maxTimeMS(100) + * + * @method maxTime + * @memberOf Query + * @param {Number} ms + * @see mongodb http://docs.mongodb.org/manual/reference/operator/meta/maxTimeMS/#op._S_maxTimeMS + * @api public + */ + +Query.prototype.maxTime = Query.prototype.maxTimeMS = function(ms) { + this._validate('maxTime'); + this.options.maxTimeMS = ms; + return this; +}; + +/** + * Sets query hints. + * + * #### Example: + * + * query.hint({ indexA: 1, indexB: -1}); + * query.hint('indexA_1_indexB_1'); + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @param {Object|string} val a hint object or the index name + * @return {Query} this + * @see mongodb http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24hint + * @api public + */ + +Query.prototype.hint = function() { + if (0 === arguments.length) return this; + + this._validate('hint'); + + const arg = arguments[0]; + if (utils.isObject(arg)) { + const hint = this.options.hint || (this.options.hint = {}); + + // must keep object keys in order so don't use Object.keys() + for (const k in arg) { + hint[k] = arg[k]; + } + + return this; + } + if (typeof arg === 'string') { + this.options.hint = arg; + return this; + } + + throw new TypeError('Invalid hint. ' + arg); +}; + +/** + * Requests acknowledgement that this operation has been persisted to MongoDB's + * on-disk journal. + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to the `j` value if it is specified in writeConcern options + * + * #### Example: + * + * mquery().w(2).j(true).wtimeout(2000); + * + * @method j + * @memberOf Query + * @instance + * @param {boolean} val + * @see mongodb https://docs.mongodb.com/manual/reference/write-concern/#j-option + * @return {Query} this + * @api public + */ + +Query.prototype.j = function j(val) { + this.options.j = val; + return this; +}; + +/** + * Sets the slaveOk option. _Deprecated_ in MongoDB 2.2 in favor of read preferences. + * + * #### Example: + * + * query.slaveOk() // true + * query.slaveOk(true) + * query.slaveOk(false) + * + * @deprecated use read() preferences instead if on mongodb >= 2.2 + * @param {Boolean} v defaults to true + * @see mongodb http://docs.mongodb.org/manual/applications/replication/#read-preference + * @see read() + * @return {Query} this + * @api public + */ + +Query.prototype.slaveOk = function(v) { + this.options.slaveOk = arguments.length ? !!v : true; + return this; +}; + +/** + * Sets the readPreference option for the query. + * + * #### Example: + * + * new Query().read('primary') + * new Query().read('p') // same as primary + * + * new Query().read('primaryPreferred') + * new Query().read('pp') // same as primaryPreferred + * + * new Query().read('secondary') + * new Query().read('s') // same as secondary + * + * new Query().read('secondaryPreferred') + * new Query().read('sp') // same as secondaryPreferred + * + * new Query().read('nearest') + * new Query().read('n') // same as nearest + * + * // you can also use mongodb.ReadPreference class to also specify tags + * new Query().read(mongodb.ReadPreference('secondary', [{ dc:'sf', s: 1 },{ dc:'ma', s: 2 }])) + * + * new Query().setReadPreference('primary') // alias of .read() + * + * #### Preferences: + * + * primary - (default) Read from primary only. Operations will produce an error if primary is unavailable. Cannot be combined with tags. + * secondary Read from secondary if available, otherwise error. + * primaryPreferred Read from primary if available, otherwise a secondary. + * secondaryPreferred Read from a secondary if available, otherwise read from the primary. + * nearest All operations read from among the nearest candidates, but unlike other modes, this option will include both the primary and all secondaries in the random selection. + * + * Aliases + * + * p primary + * pp primaryPreferred + * s secondary + * sp secondaryPreferred + * n nearest + * + * Read more about how to use read preferences [here](http://docs.mongodb.org/manual/applications/replication/#read-preference) and [here](http://mongodb.github.com/node-mongodb-native/driver-articles/anintroductionto1_1and2_2.html#read-preferences). + * + * @param {String|ReadPreference} pref one of the listed preference options or their aliases + * @see mongodb http://docs.mongodb.org/manual/applications/replication/#read-preference + * @see driver http://mongodb.github.com/node-mongodb-native/driver-articles/anintroductionto1_1and2_2.html#read-preferences + * @return {Query} this + * @api public + */ + +Query.prototype.read = Query.prototype.setReadPreference = function(pref) { + if (arguments.length > 1 && !Query.prototype.read.deprecationWarningIssued) { + console.error('Deprecation warning: \'tags\' argument is not supported anymore in Query.read() method. Please use mongodb.ReadPreference object instead.'); + Query.prototype.read.deprecationWarningIssued = true; + } + this.options.readPreference = utils.readPref(pref); + return this; +}; + +/** + * Sets the readConcern option for the query. + * + * #### Example: + * + * new Query().readConcern('local') + * new Query().readConcern('l') // same as local + * + * new Query().readConcern('available') + * new Query().readConcern('a') // same as available + * + * new Query().readConcern('majority') + * new Query().readConcern('m') // same as majority + * + * new Query().readConcern('linearizable') + * new Query().readConcern('lz') // same as linearizable + * + * new Query().readConcern('snapshot') + * new Query().readConcern('s') // same as snapshot + * + * new Query().r('s') // r is alias of readConcern + * + * + * #### Read Concern Level: + * + * local MongoDB 3.2+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). + * available MongoDB 3.6+ The query returns from the instance with no guarantee guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back). + * majority MongoDB 3.2+ The query returns the data that has been acknowledged by a majority of the replica set members. The documents returned by the read operation are durable, even in the event of failure. + * linearizable MongoDB 3.4+ The query returns data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation. The query may wait for concurrently executing writes to propagate to a majority of replica set members before returning results. + * snapshot MongoDB 4.0+ Only available for operations within multi-document transactions. Upon transaction commit with write concern "majority", the transaction operations are guaranteed to have read from a snapshot of majority-committed data. + * + * Aliases + * + * l local + * a available + * m majority + * lz linearizable + * s snapshot + * + * Read more about how to use read concern [here](https://docs.mongodb.com/manual/reference/read-concern/). + * + * @param {String} level one of the listed read concern level or their aliases + * @see mongodb https://docs.mongodb.com/manual/reference/read-concern/ + * @return {Query} this + * @api public + */ + +Query.prototype.readConcern = Query.prototype.r = function(level) { + this.options.readConcern = utils.readConcern(level); + return this; +}; + +/** + * Sets tailable option. + * + * #### Example: + * + * query.tailable() <== true + * query.tailable(true) + * query.tailable(false) + * + * #### Note: + * + * Cannot be used with `distinct()` + * + * @param {Boolean} v defaults to true + * @see mongodb http://www.mongodb.org/display/DOCS/Tailable+Cursors + * @api public + */ + +Query.prototype.tailable = function() { + this._validate('tailable'); + + this.options.tailable = arguments.length + ? !!arguments[0] + : true; + + return this; +}; + +/** + * Sets the specified number of `mongod` servers, or tag set of `mongod` servers, + * that must acknowledge this write before this write is considered successful. + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to the `w` value if it is specified in writeConcern options + * + * #### Example: + * + * mquery().writeConcern(0) + * mquery().writeConcern(1) + * mquery().writeConcern({ w: 1, j: true, wtimeout: 2000 }) + * mquery().writeConcern('majority') + * mquery().writeConcern('m') // same as majority + * mquery().writeConcern('tagSetName') // if the tag set is 'm', use .writeConcern({ w: 'm' }) instead + * mquery().w(1) // w is alias of writeConcern + * + * @method writeConcern + * @memberOf Query + * @instance + * @param {String|number|object} concern 0 for fire-and-forget, 1 for acknowledged by one server, 'majority' for majority of the replica set, or [any of the more advanced options](https://docs.mongodb.com/manual/reference/write-concern/#w-option). + * @see mongodb https://docs.mongodb.com/manual/reference/write-concern/#w-option + * @return {Query} this + * @api public + */ + +Query.prototype.writeConcern = Query.prototype.w = function writeConcern(concern) { + if ('object' === typeof concern) { + if ('undefined' !== typeof concern.j) this.options.j = concern.j; + if ('undefined' !== typeof concern.w) this.options.w = concern.w; + if ('undefined' !== typeof concern.wtimeout) this.options.wtimeout = concern.wtimeout; + } else { + this.options.w = 'm' === concern ? 'majority' : concern; + } + return this; +}; + +/** + * Specifies a time limit, in milliseconds, for the write concern. + * If `ms > 1`, it is maximum amount of time to wait for this write + * to propagate through the replica set before this operation fails. + * The default is `0`, which means no timeout. + * + * This option is only valid for operations that write to the database: + * + * - `deleteOne()` + * - `deleteMany()` + * - `findOneAndDelete()` + * - `findOneAndUpdate()` + * - `updateOne()` + * - `updateMany()` + * + * Defaults to `wtimeout` value if it is specified in writeConcern + * + * #### Example: + * + * mquery().w(2).j(true).wtimeout(2000) + * + * @method wtimeout + * @memberOf Query + * @instance + * @param {number} ms number of milliseconds to wait + * @see mongodb https://docs.mongodb.com/manual/reference/write-concern/#wtimeout + * @return {Query} this + * @api public + */ + +Query.prototype.wtimeout = Query.prototype.wTimeout = function wtimeout(ms) { + this.options.wtimeout = ms; + return this; +}; + +/** + * Merges another Query or conditions object into this one. + * + * When a Query is passed, conditions, field selection and options are merged. + * + * @param {Query|Object} source + * @return {Query} this + */ + +Query.prototype.merge = function(source) { + if (!source) + return this; + + if (!Query.canMerge(source)) + throw new TypeError('Invalid argument. Expected instanceof mquery or plain object'); + + if (source instanceof Query) { + // if source has a feature, apply it to ourselves + + if (source._conditions) { + utils.merge(this._conditions, source._conditions); + } + + if (source._fields) { + this._fields || (this._fields = {}); + utils.merge(this._fields, source._fields); + } + + if (source.options) { + this.options || (this.options = {}); + utils.merge(this.options, source.options); + } + + if (source._updateDoc) { + this._updateDoc || (this._updateDoc = {}); + utils.mergeClone(this._updateDoc, source._updateDoc); + } + + if (source._distinctDoc) { + this._distinctDoc = source._distinctDoc; + } + + return this; + } + + // plain object + utils.merge(this._conditions, source); + + return this; +}; + +/** + * Finds documents. + * + * #### Example: + * + * query.find() + * await query.find() + * await query.find({ name: 'Burning Lights' }) + * + * @param {Object} [criteria] mongodb selector + * @return {Query} this + * @api public + */ + +Query.prototype.find = function(criteria) { + this.op = 'find'; + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + return this; +}; + +/** + * Executes a `find` Query + * @returns the result + */ +Query.prototype._find = async function _find() { + const conds = this._conditions; + const options = this._optionsForExec(); + + if (this.$useProjection) { + options.projection = this._fieldsForExec(); + } else { + options.fields = this._fieldsForExec(); + } + + debug('_find', this._collection.collectionName, conds, options); + + return this._collection.find(conds, options); +}; + +/** + * Returns the query cursor + * + * #### Examples: + * + * query.find().cursor(); + * query.cursor({ name: 'Burning Lights' }); + * + * @param {Object} [criteria] mongodb selector + * @return {Object} cursor + * @api public + */ + +Query.prototype.cursor = function cursor(criteria) { + if (this.op) { + if (this.op !== 'find') { + throw new TypeError('.cursor only support .find method'); + } + } else { + this.find(criteria); + } + + const conds = this._conditions; + const options = this._optionsForExec(); + + if (this.$useProjection) { + options.projection = this._fieldsForExec(); + } else { + options.fields = this._fieldsForExec(); + } + + debug('findCursor', this._collection.collectionName, conds, options); + return this._collection.findCursor(conds, options); +}; + +/** + * Executes the query as a findOne() operation. + * + * #### Example: + * + * query.findOne().where('name', /^Burning/); + * + * query.findOne({ name: /^Burning/ }) + * + * await query.findOne({ name: /^Burning/ }); // executes + * + * @param {Object|Query} [criteria] mongodb selector + * @return {Query} this + * @api public + */ + +Query.prototype.findOne = function(criteria) { + this.op = 'findOne'; + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + return this; +}; + +/** + * Executes a `findOne` Query + * @returns the results + */ +Query.prototype._findOne = async function _findOne() { + const conds = this._conditions; + const options = this._optionsForExec(); + + if (this.$useProjection) { + options.projection = this._fieldsForExec(); + } else { + options.fields = this._fieldsForExec(); + } + + debug('findOne', this._collection.collectionName, conds, options); + + return this._collection.findOne(conds, options); +}; + +/** + * Exectues the query as a count() operation. + * + * #### Example: + * + * query.count().where('color', 'black').exec(); + * + * query.count({ color: 'black' }) + * + * await query.count({ color: 'black' }); + * + * const doc = await query.where('color', 'black').count(); + * console.log('there are %d kittens', count); + * + * @param {Object} [criteria] mongodb selector + * @return {Query} this + * @see mongodb http://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Count + * @api public + */ + +Query.prototype.count = function(criteria) { + this.op = 'count'; + this._validate(); + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + return this; +}; + +/** + * Executes a `count` Query + * @returns the results + */ +Query.prototype._count = async function _count() { + const conds = this._conditions, + options = this._optionsForExec(); + + debug('count', this._collection.collectionName, conds, options); + + return this._collection.count(conds, options); +}; + +/** + * Declares or executes a distinct() operation. + * + * #### Example: + * + * await distinct(criteria, field) + * distinct(criteria, field) + * await distinct(field) + * distinct(field) + * await distinct() + * distinct() + * + * @param {Object|Query} [criteria] + * @param {String} [field] + * @return {Query} this + * @see mongodb http://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Distinct + * @api public + */ + +Query.prototype.distinct = function(criteria, field) { + this.op = 'distinct'; + this._validate(); + + if (!field && typeof criteria === 'string') { + field = criteria; + criteria = undefined; + } + + if ('string' == typeof field) { + this._distinctDoc = field; + } + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + return this; +}; + +/** + * Executes a `distinct` Query + * @returns the results + */ +Query.prototype._distinct = async function _distinct() { + if (!this._distinctDoc) { + throw new Error('No value for `distinct` has been declared'); + } + + const conds = this._conditions, + options = this._optionsForExec(); + + debug('distinct', this._collection.collectionName, conds, options); + + return this._collection.distinct(this._distinctDoc, conds, options); +}; + +/** + * Declare and/or execute this query as an `updateMany()` operation. This function will update _all_ documents that match + * `criteria`, rather than just the first one. + * + * _All paths passed that are not $atomic operations will become $set ops._ + * + * #### Example: + * + * // Update every document whose `title` contains 'test' + * mquery().updateMany({ title: /test/ }, { year: 2017 }) + * + * @param {Object} [criteria] + * @param {Object} [doc] the update command + * @param {Object} [options] + * @return {Query} this + * @api public + */ + +Query.prototype.updateMany = function updateMany(criteria, doc, options) { + if (arguments.length === 1) { + doc = criteria; + criteria = options = undefined; + } + + return _update(this, 'updateMany', criteria, doc, options); +}; + +/** + * Executes a `updateMany` Query + * @returns the results + */ +Query.prototype._updateMany = async function() { + return _updateExec(this, 'updateMany'); +}; + +/** + * Declare and/or execute this query as an `updateOne()` operation. This function will _always_ update just one document, + * regardless of the `multi` option. + * + * _All paths passed that are not $atomic operations will become $set ops._ + * + * #### Example: + * + * // Update the first document whose `title` contains 'test' + * mquery().updateMany({ title: /test/ }, { year: 2017 }) + * + * @param {Object} [criteria] + * @param {Object} [doc] the update command + * @param {Object} [options] + * @return {Query} this + * @api public + */ + +Query.prototype.updateOne = function updateOne(criteria, doc, options) { + if (arguments.length === 1) { + doc = criteria; + criteria = options = undefined; + } + + return _update(this, 'updateOne', criteria, doc, options); +}; + +/** + * Executes a `updateOne` Query + * @returns the results + */ +Query.prototype._updateOne = async function() { + return _updateExec(this, 'updateOne'); +}; + +/** + * Declare and/or execute this query as an `replaceOne()` operation. Similar + * to `updateOne()`, except `replaceOne()` is not allowed to use atomic + * modifiers (`$set`, `$push`, etc.). Calling `replaceOne()` will always + * replace the existing doc. + * + * #### Example: + * + * // Replace the document with `_id` 1 with `{ _id: 1, year: 2017 }` + * mquery().replaceOne({ _id: 1 }, { year: 2017 }) + * + * @param {Object} [criteria] + * @param {Object} [doc] the update command + * @param {Object} [options] + * @return {Query} this + * @api public + */ + +Query.prototype.replaceOne = function replaceOne(criteria, doc, options) { + if (arguments.length === 1) { + doc = criteria; + criteria = options = undefined; + } + + this.setOptions({ overwrite: true }); + return _update(this, 'replaceOne', criteria, doc, options); +}; + +/** + * Executes a `replaceOne` Query + * @returns the results + */ +Query.prototype._replaceOne = async function() { + return _updateExec(this, 'replaceOne'); +}; + +/*! + * Internal helper for updateMany, updateOne + */ + +function _update(query, op, criteria, doc, options) { + query.op = op; + + if (Query.canMerge(criteria)) { + query.merge(criteria); + } + + if (doc) { + query._mergeUpdate(doc); + } + + if (utils.isObject(options)) { + // { overwrite: true } + query.setOptions(options); + } + + return query; +} + +/** + * Helper for de-duplicating "update*" functions + * @param {Query} query The Query Object (replacement for "this") + * @param {String} op The Operation to be done + * @returns the results + */ +async function _updateExec(query, op) { + const options = query._optionsForExec(); + + const criteria = query._conditions; + const doc = query._updateForExec(); + + debug('update', query._collection.collectionName, criteria, doc, options); + + return query._collection[op](criteria, doc, options); +} + +/** + * Declare and/or execute this query as a `deleteOne()` operation. + * + * #### Example: + * + * await mquery(collection).deleteOne({ artist: 'Anne Murray' }) + * + * @param {Object|Query} [criteria] mongodb selector + * @return {Query} this + * @api public + */ + +Query.prototype.deleteOne = function(criteria) { + this.op = 'deleteOne'; + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + return this; +}; + +/** + * Executes a `deleteOne` Query + * @returns the results + */ +Query.prototype._deleteOne = async function() { + const options = this._optionsForExec(); + delete options.justOne; + + const conds = this._conditions; + + debug('deleteOne', this._collection.collectionName, conds, options); + + return this._collection.deleteOne(conds, options); +}; + +/** + * Declare and/or execute this query as a `deleteMany()` operation. Always deletes + * _every_ document that matches `criteria`. + * + * #### Example: + * + * await mquery(collection).deleteMany({ artist: 'Anne Murray' }) + * + * @param {Object|Query} [criteria] mongodb selector + * @return {Query} this + * @api public + */ + +Query.prototype.deleteMany = function(criteria) { + this.op = 'deleteMany'; + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + return this; +}; + +/** + * Executes a `deleteMany` Query + * @returns the results + */ +Query.prototype._deleteMany = async function() { + const options = this._optionsForExec(); + delete options.justOne; + + const conds = this._conditions; + + debug('deleteOne', this._collection.collectionName, conds, options); + + return this._collection.deleteMany(conds, options); +}; + +/** + * Issues a mongodb [findAndModify](http://www.mongodb.org/display/DOCS/findAndModify+Command) update command. + * + * Finds a matching document, updates it according to the `update` arg, passing any `options`, and returns the found document (if any). + * + * #### Available options + * + * - `new`: bool - true to return the modified document rather than the original. defaults to true + * - `upsert`: bool - creates the object if it doesn't exist. defaults to false. + * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update + * + * #### Examples: + * + * await query.findOneAndUpdate(conditions, update, options) // executes + * query.findOneAndUpdate(conditions, update, options) // returns Query + * await query.findOneAndUpdate(conditions, update) // executes + * query.findOneAndUpdate(conditions, update) // returns Query + * await query.findOneAndUpdate(update) // returns Query + * query.findOneAndUpdate(update) // returns Query + * await query.findOneAndUpdate() // executes + * query.findOneAndUpdate() // returns Query + * + * @param {Object|Query} [query] + * @param {Object} [doc] + * @param {Object} [options] + * @see mongodb http://www.mongodb.org/display/DOCS/findAndModify+Command + * @return {Query} this + * @api public + */ + +Query.prototype.findOneAndUpdate = function(criteria, doc, options) { + this.op = 'findOneAndUpdate'; + this._validate(); + + if (arguments.length === 1) { + doc = criteria; + criteria = options = undefined; + } + + if (Query.canMerge(criteria)) { + this.merge(criteria); + } + + // apply doc + if (doc) { + this._mergeUpdate(doc); + } + + options && this.setOptions(options); + + return this; +}; + +/** + * Executes a `findOneAndUpdate` Query + * @returns the results + */ +Query.prototype._findOneAndUpdate = async function() { + const conds = this._conditions; + const update = this._updateForExec(); + const options = this._optionsForExec(); + + return this._collection.findOneAndUpdate(conds, update, options); +}; + +/** + * Issues a mongodb [findAndModify](http://www.mongodb.org/display/DOCS/findAndModify+Command) remove command. + * + * Finds a matching document, removes it, returning the found document (if any). + * + * #### Available options + * + * - `sort`: if multiple docs are found by the conditions, sets the sort order to choose which doc to update + * + * #### Examples: + * + * await A.where().findOneAndRemove(conditions, options) // executes + * A.where().findOneAndRemove(conditions, options) // return Query + * await A.where().findOneAndRemove(conditions) // executes + * A.where().findOneAndRemove(conditions) // returns Query + * await A.where().findOneAndRemove() // executes + * A.where().findOneAndRemove() // returns Query + * A.where().findOneAndDelete() // alias of .findOneAndRemove() + * + * @param {Object} [conditions] + * @param {Object} [options] + * @return {Query} this + * @see mongodb http://www.mongodb.org/display/DOCS/findAndModify+Command + * @api public + */ + +Query.prototype.findOneAndRemove = Query.prototype.findOneAndDelete = function(conditions, options) { + this.op = 'findOneAndRemove'; + this._validate(); + + // apply conditions + if (Query.canMerge(conditions)) { + this.merge(conditions); + } + + // apply options + options && this.setOptions(options); + + return this; +}; + +/** + * Executes a `findOneAndRemove` Query + * @returns the results + */ +Query.prototype._findOneAndRemove = async function() { + const options = this._optionsForExec(); + const conds = this._conditions; + + return this._collection.findOneAndDelete(conds, options); +}; + +/** + * Add trace function that gets called when the query is executed. + * The function will be called with (method, queryInfo, query) and + * should return a callback function which will be called + * with (err, result, millis) when the query is complete. + * + * queryInfo is an object containing: { + * collectionName: , + * conditions: , + * options: , + * doc: [document to update, if applicable] + * } + * + * NOTE: Does not trace stream queries. + * + * @param {Function} traceFunction + * @return {Query} this + * @api public + */ +Query.prototype.setTraceFunction = function(traceFunction) { + this._traceFunction = traceFunction; + return this; +}; + +/** + * Executes the query + * + * #### Examples: + * + * query.exec(); + * await query.exec(); + * query.exec('update'); + * await query.exec('find'); + * + * @param {String|Function} [operation] + * @api public + */ + +Query.prototype.exec = async function exec(op) { + if (typeof op === 'string') { + this.op = op; + } + + assert.ok(this.op, 'Missing query type: (find, etc)'); + + const fnName = '_' + this.op; + + // better error, because default would list it as "this[fnName] is not a function" + if (typeof this[fnName] !== 'function') { + throw new TypeError(`this[${fnName}] is not a function`); + } + + return this[fnName](); +}; + +/** + * Executes the query returning a `Promise` which will be + * resolved with either the doc(s) or rejected with the error. + * + * @param {Function} [resolve] + * @param {Function} [reject] + * @return {Promise} + * @api public + */ + +Query.prototype.then = async function(res, rej) { + return this.exec().then(res, rej); +}; + +/** + * Returns a cursor for the given `find` query. + * + * @throws Error if operation is not a find + * @returns {Cursor} MongoDB driver cursor + */ + +Query.prototype.cursor = function() { + if ('find' != this.op) + throw new Error('cursor() is only available for find'); + + const conds = this._conditions; + + const options = this._optionsForExec(); + if (this.$useProjection) { + options.projection = this._fieldsForExec(); + } else { + options.fields = this._fieldsForExec(); + } + + debug('cursor', this._collection.collectionName, conds, options); + + return this._collection.findCursor(conds, options); +}; + +/** + * Determines if field selection has been made. + * + * @return {Boolean} + * @api public + */ + +Query.prototype.selected = function selected() { + return !!(this._fields && Object.keys(this._fields).length > 0); +}; + +/** + * Determines if inclusive field selection has been made. + * + * query.selectedInclusively() // false + * query.select('name') + * query.selectedInclusively() // true + * query.selectedExlusively() // false + * + * @returns {Boolean} + */ + +Query.prototype.selectedInclusively = function selectedInclusively() { + if (!this._fields) return false; + + const keys = Object.keys(this._fields); + if (0 === keys.length) return false; + + for (let i = 0; i < keys.length; ++i) { + const key = keys[i]; + if (0 === this._fields[key]) return false; + if (this._fields[key] && + typeof this._fields[key] === 'object' && + this._fields[key].$meta) { + return false; + } + } + + return true; +}; + +/** + * Determines if exclusive field selection has been made. + * + * query.selectedExlusively() // false + * query.select('-name') + * query.selectedExlusively() // true + * query.selectedInclusively() // false + * + * @returns {Boolean} + */ + +Query.prototype.selectedExclusively = function selectedExclusively() { + if (!this._fields) return false; + + const keys = Object.keys(this._fields); + if (0 === keys.length) return false; + + for (let i = 0; i < keys.length; ++i) { + const key = keys[i]; + if (0 === this._fields[key]) return true; + } + + return false; +}; + +/** + * Merges `doc` with the current update object. + * + * @param {Object} doc + */ + +Query.prototype._mergeUpdate = function(doc) { + if (!this._updateDoc) this._updateDoc = {}; + if (doc instanceof Query) { + if (doc._updateDoc) { + utils.mergeClone(this._updateDoc, doc._updateDoc); + } + } else { + utils.mergeClone(this._updateDoc, doc); + } +}; + +/** + * Returns default options. + * + * @return {Object} + * @api private + */ + +Query.prototype._optionsForExec = function() { + const options = utils.clone(this.options); + return options; +}; + +/** + * Returns fields selection for this query. + * + * @return {Object} + * @api private + */ + +Query.prototype._fieldsForExec = function() { + return utils.clone(this._fields); +}; + +/** + * Return an update document with corrected $set operations. + * + * @api private + */ + +Query.prototype._updateForExec = function() { + const update = utils.clone(this._updateDoc); + const ops = utils.keys(update); + const ret = {}; + + for (const op of ops) { + if (this.options.overwrite) { + ret[op] = update[op]; + continue; + } + + if ('$' !== op[0]) { + // fix up $set sugar + if (!ret.$set) { + if (update.$set) { + ret.$set = update.$set; + } else { + ret.$set = {}; + } + } + ret.$set[op] = update[op]; + if (!~ops.indexOf('$set')) ops.push('$set'); + } else if ('$set' === op) { + if (!ret.$set) { + ret[op] = update[op]; + } + } else { + ret[op] = update[op]; + } + } + + this._compiledUpdate = ret; + return ret; +}; + +/** + * Make sure _path is set. + * + * @parmam {String} method + */ + +Query.prototype._ensurePath = function(method) { + if (!this._path) { + const msg = method + '() must be used after where() ' + + 'when called with these arguments'; + throw new Error(msg); + } +}; + +/*! + * Permissions + */ + +Query.permissions = require('./permissions'); + +Query._isPermitted = function(a, b) { + const denied = Query.permissions[b]; + if (!denied) return true; + return true !== denied[a]; +}; + +Query.prototype._validate = function(action) { + let fail; + let validator; + + if (undefined === action) { + + validator = Query.permissions[this.op]; + if ('function' != typeof validator) return true; + + fail = validator(this); + + } else if (!Query._isPermitted(action, this.op)) { + fail = action; + } + + if (fail) { + throw new Error(fail + ' cannot be used with ' + this.op); + } +}; + +/** + * Determines if `conds` can be merged using `mquery().merge()` + * + * @param {Object} conds + * @return {Boolean} + */ + +Query.canMerge = function(conds) { + return conds instanceof Query || utils.isObject(conds); +}; + +/** + * Set a trace function that will get called whenever a + * query is executed. + * + * See `setTraceFunction()` for details. + * + * @param {Object} conds + * @return {Boolean} + */ +Query.setGlobalTraceFunction = function(traceFunction) { + Query.traceFunction = traceFunction; +}; + +/*! + * Exports. + */ + +Query.utils = utils; +Query.env = require('./env'); +Query.Collection = require('./collection'); +Query.BaseCollection = require('./collection/collection'); +module.exports = exports = Query; + +// TODO +// test utils diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/permissions.js b/week-3/04-course-app-hard/node_modules/mquery/lib/permissions.js new file mode 100644 index 000000000..97d2c73a2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/permissions.js @@ -0,0 +1,78 @@ +'use strict'; + +const denied = exports; + +denied.distinct = function(self) { + if (self._fields && Object.keys(self._fields).length > 0) { + return 'field selection and slice'; + } + + const keys = Object.keys(denied.distinct); + let err; + + keys.every(function(option) { + if (self.options[option]) { + err = option; + return false; + } + return true; + }); + + return err; +}; +denied.distinct.select = +denied.distinct.slice = +denied.distinct.sort = +denied.distinct.limit = +denied.distinct.skip = +denied.distinct.batchSize = +denied.distinct.hint = +denied.distinct.tailable = true; + + +// aggregation integration + + +denied.findOneAndUpdate = +denied.findOneAndRemove = function(self) { + const keys = Object.keys(denied.findOneAndUpdate); + let err; + + keys.every(function(option) { + if (self.options[option]) { + err = option; + return false; + } + return true; + }); + + return err; +}; +denied.findOneAndUpdate.limit = +denied.findOneAndUpdate.skip = +denied.findOneAndUpdate.batchSize = +denied.findOneAndUpdate.tailable = true; + + +denied.count = function(self) { + if (self._fields && Object.keys(self._fields).length > 0) { + return 'field selection and slice'; + } + + const keys = Object.keys(denied.count); + let err; + + keys.every(function(option) { + if (self.options[option]) { + err = option; + return false; + } + return true; + }); + + return err; +}; + +denied.count.slice = +denied.count.batchSize = +denied.count.tailable = true; diff --git a/week-3/04-course-app-hard/node_modules/mquery/lib/utils.js b/week-3/04-course-app-hard/node_modules/mquery/lib/utils.js new file mode 100644 index 000000000..dbaec255d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/lib/utils.js @@ -0,0 +1,297 @@ +'use strict'; + +/*! + * Module dependencies. + */ + +const specialProperties = ['__proto__', 'constructor', 'prototype']; + +/** + * Clones objects + * + * @param {Object} obj the object to clone + * @param {Object} options + * @return {Object} the cloned object + * @api private + */ + +const clone = exports.clone = function clone(obj, options) { + if (obj === undefined || obj === null) + return obj; + + if (Array.isArray(obj)) + return exports.cloneArray(obj, options); + + if (obj.constructor) { + if (/ObjectI[dD]$/.test(obj.constructor.name)) { + return 'function' == typeof obj.clone + ? obj.clone() + : new obj.constructor(obj.id); + } + + if (obj.constructor.name === 'ReadPreference') { + return new obj.constructor(obj.mode, clone(obj.tags, options)); + } + + if ('Binary' == obj._bsontype && obj.buffer && obj.value) { + return 'function' == typeof obj.clone + ? obj.clone() + : new obj.constructor(obj.value(true), obj.sub_type); + } + + if ('Date' === obj.constructor.name || 'Function' === obj.constructor.name) + return new obj.constructor(+obj); + + if ('RegExp' === obj.constructor.name) + return new RegExp(obj); + + if ('Buffer' === obj.constructor.name) + return Buffer.from(obj); + } + + if (isObject(obj)) + return exports.cloneObject(obj, options); + + if (obj.valueOf) + return obj.valueOf(); +}; + +/*! + * ignore + */ + +exports.cloneObject = function cloneObject(obj, options) { + const minimize = options && options.minimize, + ret = {}, + keys = Object.keys(obj), + len = keys.length; + let hasKeys = false, + val, + k = '', + i = 0; + + for (i = 0; i < len; ++i) { + k = keys[i]; + // Not technically prototype pollution because this wouldn't merge properties + // onto `Object.prototype`, but avoid properties like __proto__ as a precaution. + if (specialProperties.indexOf(k) !== -1) { + continue; + } + + val = clone(obj[k], options); + + if (!minimize || ('undefined' !== typeof val)) { + hasKeys || (hasKeys = true); + ret[k] = val; + } + } + + return minimize + ? hasKeys && ret + : ret; +}; + +exports.cloneArray = function cloneArray(arr, options) { + const ret = [], + l = arr.length; + let i = 0; + for (; i < l; i++) + ret.push(clone(arr[i], options)); + return ret; +}; + +/** + * Merges `from` into `to` without overwriting existing properties. + * + * @param {Object} to + * @param {Object} from + * @api private + */ + +exports.merge = function merge(to, from) { + const keys = Object.keys(from); + + for (const key of keys) { + if (specialProperties.indexOf(key) !== -1) { + continue; + } + if ('undefined' === typeof to[key]) { + to[key] = from[key]; + } else { + if (exports.isObject(from[key])) { + merge(to[key], from[key]); + } else { + to[key] = from[key]; + } + } + } +}; + +/** + * Same as merge but clones the assigned values. + * + * @param {Object} to + * @param {Object} from + * @api private + */ + +exports.mergeClone = function mergeClone(to, from) { + const keys = Object.keys(from); + + for (const key of keys) { + if (specialProperties.indexOf(key) !== -1) { + continue; + } + if ('undefined' === typeof to[key]) { + to[key] = clone(from[key]); + } else { + if (exports.isObject(from[key])) { + mergeClone(to[key], from[key]); + } else { + to[key] = clone(from[key]); + } + } + } +}; + +/** + * Read pref helper (mongo 2.2 drivers support this) + * + * Allows using aliases instead of full preference names: + * + * p primary + * pp primaryPreferred + * s secondary + * sp secondaryPreferred + * n nearest + * + * @param {String} pref + */ + +exports.readPref = function readPref(pref) { + switch (pref) { + case 'p': + pref = 'primary'; + break; + case 'pp': + pref = 'primaryPreferred'; + break; + case 's': + pref = 'secondary'; + break; + case 'sp': + pref = 'secondaryPreferred'; + break; + case 'n': + pref = 'nearest'; + break; + } + + return pref; +}; + + +/** + * Read Concern helper (mongo 3.2 drivers support this) + * + * Allows using string to specify read concern level: + * + * local 3.2+ + * available 3.6+ + * majority 3.2+ + * linearizable 3.4+ + * snapshot 4.0+ + * + * @param {String|Object} concern + */ + +exports.readConcern = function readConcern(concern) { + if ('string' === typeof concern) { + switch (concern) { + case 'l': + concern = 'local'; + break; + case 'a': + concern = 'available'; + break; + case 'm': + concern = 'majority'; + break; + case 'lz': + concern = 'linearizable'; + break; + case 's': + concern = 'snapshot'; + break; + } + concern = { level: concern }; + } + return concern; +}; + +/** + * Object.prototype.toString.call helper + */ + +const _toString = Object.prototype.toString; +exports.toString = function(arg) { + return _toString.call(arg); +}; + +/** + * Determines if `arg` is an object. + * + * @param {Object|Array|String|Function|RegExp|any} arg + * @return {Boolean} + */ + +const isObject = exports.isObject = function(arg) { + return '[object Object]' == exports.toString(arg); +}; + +/** + * Object.keys helper + */ + +exports.keys = Object.keys; + +/** + * Basic Object.create polyfill. + * Only one argument is supported. + * + * Based on https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/create + */ + +exports.create = 'function' == typeof Object.create + ? Object.create + : create; + +function create(proto) { + if (arguments.length > 1) { + throw new Error('Adding properties is not supported'); + } + + function F() { } + F.prototype = proto; + return new F; +} + +/** + * inheritance + */ + +exports.inherits = function(ctor, superCtor) { + ctor.prototype = exports.create(superCtor.prototype); + ctor.prototype.constructor = ctor; +}; + +/** + * Check if this object is an arguments object + * + * @param {Any} v + * @return {Boolean} + */ + +exports.isArgumentsObject = function(v) { + return Object.prototype.toString.call(v) === '[object Arguments]'; +}; diff --git a/week-3/04-course-app-hard/node_modules/mquery/package.json b/week-3/04-course-app-hard/node_modules/mquery/package.json new file mode 100644 index 000000000..90160835e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/mquery/package.json @@ -0,0 +1,38 @@ +{ + "name": "mquery", + "version": "5.0.0", + "description": "Expressive query building for MongoDB", + "main": "lib/mquery.js", + "scripts": { + "test": "mocha --exit test/index.js test/*.test.js", + "fix-lint": "eslint . --fix", + "lint": "eslint ." + }, + "repository": { + "type": "git", + "url": "git://github.com/aheckmann/mquery.git" + }, + "engines": { + "node": ">=14.0.0" + }, + "dependencies": { + "debug": "4.x" + }, + "devDependencies": { + "eslint": "8.x", + "eslint-plugin-mocha-no-only": "1.1.1", + "mocha": "9.x", + "mongodb": "5.x" + }, + "bugs": { + "url": "https://github.com/aheckmann/mquery/issues/new" + }, + "author": "Aaron Heckmann ", + "license": "MIT", + "keywords": [ + "mongodb", + "query", + "builder" + ], + "homepage": "https://github.com/aheckmann/mquery/" +} diff --git a/week-3/04-course-app-hard/node_modules/ms/index.js b/week-3/04-course-app-hard/node_modules/ms/index.js new file mode 100644 index 000000000..ea734fb73 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ms/index.js @@ -0,0 +1,162 @@ +/** + * Helpers. + */ + +var s = 1000; +var m = s * 60; +var h = m * 60; +var d = h * 24; +var w = d * 7; +var y = d * 365.25; + +/** + * Parse or format the given `val`. + * + * Options: + * + * - `long` verbose formatting [false] + * + * @param {String|Number} val + * @param {Object} [options] + * @throws {Error} throw an error if val is not a non-empty string or a number + * @return {String|Number} + * @api public + */ + +module.exports = function (val, options) { + options = options || {}; + var type = typeof val; + if (type === 'string' && val.length > 0) { + return parse(val); + } else if (type === 'number' && isFinite(val)) { + return options.long ? fmtLong(val) : fmtShort(val); + } + throw new Error( + 'val is not a non-empty string or a valid number. val=' + + JSON.stringify(val) + ); +}; + +/** + * Parse the given `str` and return milliseconds. + * + * @param {String} str + * @return {Number} + * @api private + */ + +function parse(str) { + str = String(str); + if (str.length > 100) { + return; + } + var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec( + str + ); + if (!match) { + return; + } + var n = parseFloat(match[1]); + var type = (match[2] || 'ms').toLowerCase(); + switch (type) { + case 'years': + case 'year': + case 'yrs': + case 'yr': + case 'y': + return n * y; + case 'weeks': + case 'week': + case 'w': + return n * w; + case 'days': + case 'day': + case 'd': + return n * d; + case 'hours': + case 'hour': + case 'hrs': + case 'hr': + case 'h': + return n * h; + case 'minutes': + case 'minute': + case 'mins': + case 'min': + case 'm': + return n * m; + case 'seconds': + case 'second': + case 'secs': + case 'sec': + case 's': + return n * s; + case 'milliseconds': + case 'millisecond': + case 'msecs': + case 'msec': + case 'ms': + return n; + default: + return undefined; + } +} + +/** + * Short format for `ms`. + * + * @param {Number} ms + * @return {String} + * @api private + */ + +function fmtShort(ms) { + var msAbs = Math.abs(ms); + if (msAbs >= d) { + return Math.round(ms / d) + 'd'; + } + if (msAbs >= h) { + return Math.round(ms / h) + 'h'; + } + if (msAbs >= m) { + return Math.round(ms / m) + 'm'; + } + if (msAbs >= s) { + return Math.round(ms / s) + 's'; + } + return ms + 'ms'; +} + +/** + * Long format for `ms`. + * + * @param {Number} ms + * @return {String} + * @api private + */ + +function fmtLong(ms) { + var msAbs = Math.abs(ms); + if (msAbs >= d) { + return plural(ms, msAbs, d, 'day'); + } + if (msAbs >= h) { + return plural(ms, msAbs, h, 'hour'); + } + if (msAbs >= m) { + return plural(ms, msAbs, m, 'minute'); + } + if (msAbs >= s) { + return plural(ms, msAbs, s, 'second'); + } + return ms + ' ms'; +} + +/** + * Pluralization helper. + */ + +function plural(ms, msAbs, n, name) { + var isPlural = msAbs >= n * 1.5; + return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : ''); +} diff --git a/week-3/04-course-app-hard/node_modules/ms/license.md b/week-3/04-course-app-hard/node_modules/ms/license.md new file mode 100644 index 000000000..fa5d39b62 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ms/license.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2020 Vercel, Inc. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/ms/package.json b/week-3/04-course-app-hard/node_modules/ms/package.json new file mode 100644 index 000000000..49971890d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ms/package.json @@ -0,0 +1,38 @@ +{ + "name": "ms", + "version": "2.1.3", + "description": "Tiny millisecond conversion utility", + "repository": "vercel/ms", + "main": "./index", + "files": [ + "index.js" + ], + "scripts": { + "precommit": "lint-staged", + "lint": "eslint lib/* bin/*", + "test": "mocha tests.js" + }, + "eslintConfig": { + "extends": "eslint:recommended", + "env": { + "node": true, + "es6": true + } + }, + "lint-staged": { + "*.js": [ + "npm run lint", + "prettier --single-quote --write", + "git add" + ] + }, + "license": "MIT", + "devDependencies": { + "eslint": "4.18.2", + "expect.js": "0.3.1", + "husky": "0.14.3", + "lint-staged": "5.0.0", + "mocha": "4.0.1", + "prettier": "2.0.5" + } +} diff --git a/week-3/04-course-app-hard/node_modules/ms/readme.md b/week-3/04-course-app-hard/node_modules/ms/readme.md new file mode 100644 index 000000000..0fc1abb3b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/ms/readme.md @@ -0,0 +1,59 @@ +# ms + +![CI](https://github.com/vercel/ms/workflows/CI/badge.svg) + +Use this package to easily convert various time formats to milliseconds. + +## Examples + +```js +ms('2 days') // 172800000 +ms('1d') // 86400000 +ms('10h') // 36000000 +ms('2.5 hrs') // 9000000 +ms('2h') // 7200000 +ms('1m') // 60000 +ms('5s') // 5000 +ms('1y') // 31557600000 +ms('100') // 100 +ms('-3 days') // -259200000 +ms('-1h') // -3600000 +ms('-200') // -200 +``` + +### Convert from Milliseconds + +```js +ms(60000) // "1m" +ms(2 * 60000) // "2m" +ms(-3 * 60000) // "-3m" +ms(ms('10 hours')) // "10h" +``` + +### Time Format Written-Out + +```js +ms(60000, { long: true }) // "1 minute" +ms(2 * 60000, { long: true }) // "2 minutes" +ms(-3 * 60000, { long: true }) // "-3 minutes" +ms(ms('10 hours'), { long: true }) // "10 hours" +``` + +## Features + +- Works both in [Node.js](https://nodejs.org) and in the browser +- If a number is supplied to `ms`, a string with a unit is returned +- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`) +- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned + +## Related Packages + +- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time. + +## Caught a Bug? + +1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device +2. Link the package to the global module directory: `npm link` +3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms! + +As always, you can run the tests using: `npm test` diff --git a/week-3/04-course-app-hard/node_modules/object-assign/index.js b/week-3/04-course-app-hard/node_modules/object-assign/index.js new file mode 100644 index 000000000..0930cf889 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/object-assign/index.js @@ -0,0 +1,90 @@ +/* +object-assign +(c) Sindre Sorhus +@license MIT +*/ + +'use strict'; +/* eslint-disable no-unused-vars */ +var getOwnPropertySymbols = Object.getOwnPropertySymbols; +var hasOwnProperty = Object.prototype.hasOwnProperty; +var propIsEnumerable = Object.prototype.propertyIsEnumerable; + +function toObject(val) { + if (val === null || val === undefined) { + throw new TypeError('Object.assign cannot be called with null or undefined'); + } + + return Object(val); +} + +function shouldUseNative() { + try { + if (!Object.assign) { + return false; + } + + // Detect buggy property enumeration order in older V8 versions. + + // https://bugs.chromium.org/p/v8/issues/detail?id=4118 + var test1 = new String('abc'); // eslint-disable-line no-new-wrappers + test1[5] = 'de'; + if (Object.getOwnPropertyNames(test1)[0] === '5') { + return false; + } + + // https://bugs.chromium.org/p/v8/issues/detail?id=3056 + var test2 = {}; + for (var i = 0; i < 10; i++) { + test2['_' + String.fromCharCode(i)] = i; + } + var order2 = Object.getOwnPropertyNames(test2).map(function (n) { + return test2[n]; + }); + if (order2.join('') !== '0123456789') { + return false; + } + + // https://bugs.chromium.org/p/v8/issues/detail?id=3056 + var test3 = {}; + 'abcdefghijklmnopqrst'.split('').forEach(function (letter) { + test3[letter] = letter; + }); + if (Object.keys(Object.assign({}, test3)).join('') !== + 'abcdefghijklmnopqrst') { + return false; + } + + return true; + } catch (err) { + // We don't expect any of the above to throw, but better to be safe. + return false; + } +} + +module.exports = shouldUseNative() ? Object.assign : function (target, source) { + var from; + var to = toObject(target); + var symbols; + + for (var s = 1; s < arguments.length; s++) { + from = Object(arguments[s]); + + for (var key in from) { + if (hasOwnProperty.call(from, key)) { + to[key] = from[key]; + } + } + + if (getOwnPropertySymbols) { + symbols = getOwnPropertySymbols(from); + for (var i = 0; i < symbols.length; i++) { + if (propIsEnumerable.call(from, symbols[i])) { + to[symbols[i]] = from[symbols[i]]; + } + } + } + } + + return to; +}; diff --git a/week-3/04-course-app-hard/node_modules/object-assign/license b/week-3/04-course-app-hard/node_modules/object-assign/license new file mode 100644 index 000000000..654d0bfe9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/object-assign/license @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) Sindre Sorhus (sindresorhus.com) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/object-assign/package.json b/week-3/04-course-app-hard/node_modules/object-assign/package.json new file mode 100644 index 000000000..503eb1e6d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/object-assign/package.json @@ -0,0 +1,42 @@ +{ + "name": "object-assign", + "version": "4.1.1", + "description": "ES2015 `Object.assign()` ponyfill", + "license": "MIT", + "repository": "sindresorhus/object-assign", + "author": { + "name": "Sindre Sorhus", + "email": "sindresorhus@gmail.com", + "url": "sindresorhus.com" + }, + "engines": { + "node": ">=0.10.0" + }, + "scripts": { + "test": "xo && ava", + "bench": "matcha bench.js" + }, + "files": [ + "index.js" + ], + "keywords": [ + "object", + "assign", + "extend", + "properties", + "es2015", + "ecmascript", + "harmony", + "ponyfill", + "prollyfill", + "polyfill", + "shim", + "browser" + ], + "devDependencies": { + "ava": "^0.16.0", + "lodash": "^4.16.4", + "matcha": "^0.7.0", + "xo": "^0.16.0" + } +} diff --git a/week-3/04-course-app-hard/node_modules/object-assign/readme.md b/week-3/04-course-app-hard/node_modules/object-assign/readme.md new file mode 100644 index 000000000..1be09d35c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/object-assign/readme.md @@ -0,0 +1,61 @@ +# object-assign [![Build Status](https://travis-ci.org/sindresorhus/object-assign.svg?branch=master)](https://travis-ci.org/sindresorhus/object-assign) + +> ES2015 [`Object.assign()`](http://www.2ality.com/2014/01/object-assign.html) [ponyfill](https://ponyfill.com) + + +## Use the built-in + +Node.js 4 and up, as well as every evergreen browser (Chrome, Edge, Firefox, Opera, Safari), +support `Object.assign()` :tada:. If you target only those environments, then by all +means, use `Object.assign()` instead of this package. + + +## Install + +``` +$ npm install --save object-assign +``` + + +## Usage + +```js +const objectAssign = require('object-assign'); + +objectAssign({foo: 0}, {bar: 1}); +//=> {foo: 0, bar: 1} + +// multiple sources +objectAssign({foo: 0}, {bar: 1}, {baz: 2}); +//=> {foo: 0, bar: 1, baz: 2} + +// overwrites equal keys +objectAssign({foo: 0}, {foo: 1}, {foo: 2}); +//=> {foo: 2} + +// ignores null and undefined sources +objectAssign({foo: 0}, null, {bar: 1}, undefined); +//=> {foo: 0, bar: 1} +``` + + +## API + +### objectAssign(target, [source, ...]) + +Assigns enumerable own properties of `source` objects to the `target` object and returns the `target` object. Additional `source` objects will overwrite previous ones. + + +## Resources + +- [ES2015 spec - Object.assign](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.assign) + + +## Related + +- [deep-assign](https://github.com/sindresorhus/deep-assign) - Recursive `Object.assign()` + + +## License + +MIT © [Sindre Sorhus](https://sindresorhus.com) diff --git a/week-3/04-course-app-hard/node_modules/punycode/LICENSE-MIT.txt b/week-3/04-course-app-hard/node_modules/punycode/LICENSE-MIT.txt new file mode 100644 index 000000000..a41e0a7ef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/punycode/LICENSE-MIT.txt @@ -0,0 +1,20 @@ +Copyright Mathias Bynens + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/punycode/README.md b/week-3/04-course-app-hard/node_modules/punycode/README.md new file mode 100644 index 000000000..f611016b0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/punycode/README.md @@ -0,0 +1,148 @@ +# Punycode.js [![punycode on npm](https://img.shields.io/npm/v/punycode)](https://www.npmjs.com/package/punycode) [![](https://data.jsdelivr.com/v1/package/npm/punycode/badge)](https://www.jsdelivr.com/package/npm/punycode) + +Punycode.js is a robust Punycode converter that fully complies to [RFC 3492](https://tools.ietf.org/html/rfc3492) and [RFC 5891](https://tools.ietf.org/html/rfc5891). + +This JavaScript library is the result of comparing, optimizing and documenting different open-source implementations of the Punycode algorithm: + +* [The C example code from RFC 3492](https://tools.ietf.org/html/rfc3492#appendix-C) +* [`punycode.c` by _Markus W. Scherer_ (IBM)](http://opensource.apple.com/source/ICU/ICU-400.42/icuSources/common/punycode.c) +* [`punycode.c` by _Ben Noordhuis_](https://github.com/bnoordhuis/punycode/blob/master/punycode.c) +* [JavaScript implementation by _some_](http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion/301287#301287) +* [`punycode.js` by _Ben Noordhuis_](https://github.com/joyent/node/blob/426298c8c1c0d5b5224ac3658c41e7c2a3fe9377/lib/punycode.js) (note: [not fully compliant](https://github.com/joyent/node/issues/2072)) + +This project was [bundled](https://github.com/joyent/node/blob/master/lib/punycode.js) with Node.js from [v0.6.2+](https://github.com/joyent/node/compare/975f1930b1...61e796decc) until [v7](https://github.com/nodejs/node/pull/7941) (soft-deprecated). + +This project provides a CommonJS module that uses ES2015+ features and JavaScript module, which work in modern Node.js versions and browsers. For the old Punycode.js version that offers the same functionality in a UMD build with support for older pre-ES2015 runtimes, including Rhino, Ringo, and Narwhal, see [v1.4.1](https://github.com/mathiasbynens/punycode.js/releases/tag/v1.4.1). + +## Installation + +Via [npm](https://www.npmjs.com/): + +```bash +npm install punycode --save +``` + +In [Node.js](https://nodejs.org/): + +> ⚠️ Note that userland modules don't hide core modules. +> For example, `require('punycode')` still imports the deprecated core module even if you executed `npm install punycode`. +> Use `require('punycode/')` to import userland modules rather than core modules. + +```js +const punycode = require('punycode/'); +``` + +## API + +### `punycode.decode(string)` + +Converts a Punycode string of ASCII symbols to a string of Unicode symbols. + +```js +// decode domain name parts +punycode.decode('maana-pta'); // 'mañana' +punycode.decode('--dqo34k'); // '☃-⌘' +``` + +### `punycode.encode(string)` + +Converts a string of Unicode symbols to a Punycode string of ASCII symbols. + +```js +// encode domain name parts +punycode.encode('mañana'); // 'maana-pta' +punycode.encode('☃-⌘'); // '--dqo34k' +``` + +### `punycode.toUnicode(input)` + +Converts a Punycode string representing a domain name or an email address to Unicode. Only the Punycoded parts of the input will be converted, i.e. it doesn’t matter if you call it on a string that has already been converted to Unicode. + +```js +// decode domain names +punycode.toUnicode('xn--maana-pta.com'); +// → 'mañana.com' +punycode.toUnicode('xn----dqo34k.com'); +// → '☃-⌘.com' + +// decode email addresses +punycode.toUnicode('джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq'); +// → 'джумла@джpумлатест.bрфa' +``` + +### `punycode.toASCII(input)` + +Converts a lowercased Unicode string representing a domain name or an email address to Punycode. Only the non-ASCII parts of the input will be converted, i.e. it doesn’t matter if you call it with a domain that’s already in ASCII. + +```js +// encode domain names +punycode.toASCII('mañana.com'); +// → 'xn--maana-pta.com' +punycode.toASCII('☃-⌘.com'); +// → 'xn----dqo34k.com' + +// encode email addresses +punycode.toASCII('джумла@джpумлатест.bрфa'); +// → 'джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq' +``` + +### `punycode.ucs2` + +#### `punycode.ucs2.decode(string)` + +Creates an array containing the numeric code point values of each Unicode symbol in the string. While [JavaScript uses UCS-2 internally](https://mathiasbynens.be/notes/javascript-encoding), this function will convert a pair of surrogate halves (each of which UCS-2 exposes as separate characters) into a single code point, matching UTF-16. + +```js +punycode.ucs2.decode('abc'); +// → [0x61, 0x62, 0x63] +// surrogate pair for U+1D306 TETRAGRAM FOR CENTRE: +punycode.ucs2.decode('\uD834\uDF06'); +// → [0x1D306] +``` + +#### `punycode.ucs2.encode(codePoints)` + +Creates a string based on an array of numeric code point values. + +```js +punycode.ucs2.encode([0x61, 0x62, 0x63]); +// → 'abc' +punycode.ucs2.encode([0x1D306]); +// → '\uD834\uDF06' +``` + +### `punycode.version` + +A string representing the current Punycode.js version number. + +## For maintainers + +### How to publish a new release + +1. On the `main` branch, bump the version number in `package.json`: + + ```sh + npm version patch -m 'Release v%s' + ``` + + Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/). + + Note that this produces a Git commit + tag. + +1. Push the release commit and tag: + + ```sh + git push && git push --tags + ``` + + Our CI then automatically publishes the new release to npm, under both the [`punycode`](https://www.npmjs.com/package/punycode) and [`punycode.js`](https://www.npmjs.com/package/punycode.js) names. + +## Author + +| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") | +|---| +| [Mathias Bynens](https://mathiasbynens.be/) | + +## License + +Punycode.js is available under the [MIT](https://mths.be/mit) license. diff --git a/week-3/04-course-app-hard/node_modules/punycode/package.json b/week-3/04-course-app-hard/node_modules/punycode/package.json new file mode 100644 index 000000000..b8b76fc76 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/punycode/package.json @@ -0,0 +1,58 @@ +{ + "name": "punycode", + "version": "2.3.1", + "description": "A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.", + "homepage": "https://mths.be/punycode", + "main": "punycode.js", + "jsnext:main": "punycode.es6.js", + "module": "punycode.es6.js", + "engines": { + "node": ">=6" + }, + "keywords": [ + "punycode", + "unicode", + "idn", + "idna", + "dns", + "url", + "domain" + ], + "license": "MIT", + "author": { + "name": "Mathias Bynens", + "url": "https://mathiasbynens.be/" + }, + "contributors": [ + { + "name": "Mathias Bynens", + "url": "https://mathiasbynens.be/" + } + ], + "repository": { + "type": "git", + "url": "https://github.com/mathiasbynens/punycode.js.git" + }, + "bugs": "https://github.com/mathiasbynens/punycode.js/issues", + "files": [ + "LICENSE-MIT.txt", + "punycode.js", + "punycode.es6.js" + ], + "scripts": { + "test": "mocha tests", + "build": "node scripts/prepublish.js" + }, + "devDependencies": { + "codecov": "^3.8.3", + "nyc": "^15.1.0", + "mocha": "^10.2.0" + }, + "jspm": { + "map": { + "./punycode.js": { + "node": "@node/punycode" + } + } + } +} diff --git a/week-3/04-course-app-hard/node_modules/punycode/punycode.es6.js b/week-3/04-course-app-hard/node_modules/punycode/punycode.es6.js new file mode 100644 index 000000000..dadece25b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/punycode/punycode.es6.js @@ -0,0 +1,444 @@ +'use strict'; + +/** Highest positive signed 32-bit float value */ +const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1 + +/** Bootstring parameters */ +const base = 36; +const tMin = 1; +const tMax = 26; +const skew = 38; +const damp = 700; +const initialBias = 72; +const initialN = 128; // 0x80 +const delimiter = '-'; // '\x2D' + +/** Regular expressions */ +const regexPunycode = /^xn--/; +const regexNonASCII = /[^\0-\x7F]/; // Note: U+007F DEL is excluded too. +const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators + +/** Error messages */ +const errors = { + 'overflow': 'Overflow: input needs wider integers to process', + 'not-basic': 'Illegal input >= 0x80 (not a basic code point)', + 'invalid-input': 'Invalid input' +}; + +/** Convenience shortcuts */ +const baseMinusTMin = base - tMin; +const floor = Math.floor; +const stringFromCharCode = String.fromCharCode; + +/*--------------------------------------------------------------------------*/ + +/** + * A generic error utility function. + * @private + * @param {String} type The error type. + * @returns {Error} Throws a `RangeError` with the applicable error message. + */ +function error(type) { + throw new RangeError(errors[type]); +} + +/** + * A generic `Array#map` utility function. + * @private + * @param {Array} array The array to iterate over. + * @param {Function} callback The function that gets called for every array + * item. + * @returns {Array} A new array of values returned by the callback function. + */ +function map(array, callback) { + const result = []; + let length = array.length; + while (length--) { + result[length] = callback(array[length]); + } + return result; +} + +/** + * A simple `Array#map`-like wrapper to work with domain name strings or email + * addresses. + * @private + * @param {String} domain The domain name or email address. + * @param {Function} callback The function that gets called for every + * character. + * @returns {String} A new string of characters returned by the callback + * function. + */ +function mapDomain(domain, callback) { + const parts = domain.split('@'); + let result = ''; + if (parts.length > 1) { + // In email addresses, only the domain name should be punycoded. Leave + // the local part (i.e. everything up to `@`) intact. + result = parts[0] + '@'; + domain = parts[1]; + } + // Avoid `split(regex)` for IE8 compatibility. See #17. + domain = domain.replace(regexSeparators, '\x2E'); + const labels = domain.split('.'); + const encoded = map(labels, callback).join('.'); + return result + encoded; +} + +/** + * Creates an array containing the numeric code points of each Unicode + * character in the string. While JavaScript uses UCS-2 internally, + * this function will convert a pair of surrogate halves (each of which + * UCS-2 exposes as separate characters) into a single code point, + * matching UTF-16. + * @see `punycode.ucs2.encode` + * @see + * @memberOf punycode.ucs2 + * @name decode + * @param {String} string The Unicode input string (UCS-2). + * @returns {Array} The new array of code points. + */ +function ucs2decode(string) { + const output = []; + let counter = 0; + const length = string.length; + while (counter < length) { + const value = string.charCodeAt(counter++); + if (value >= 0xD800 && value <= 0xDBFF && counter < length) { + // It's a high surrogate, and there is a next character. + const extra = string.charCodeAt(counter++); + if ((extra & 0xFC00) == 0xDC00) { // Low surrogate. + output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000); + } else { + // It's an unmatched surrogate; only append this code unit, in case the + // next code unit is the high surrogate of a surrogate pair. + output.push(value); + counter--; + } + } else { + output.push(value); + } + } + return output; +} + +/** + * Creates a string based on an array of numeric code points. + * @see `punycode.ucs2.decode` + * @memberOf punycode.ucs2 + * @name encode + * @param {Array} codePoints The array of numeric code points. + * @returns {String} The new Unicode string (UCS-2). + */ +const ucs2encode = codePoints => String.fromCodePoint(...codePoints); + +/** + * Converts a basic code point into a digit/integer. + * @see `digitToBasic()` + * @private + * @param {Number} codePoint The basic numeric code point value. + * @returns {Number} The numeric value of a basic code point (for use in + * representing integers) in the range `0` to `base - 1`, or `base` if + * the code point does not represent a value. + */ +const basicToDigit = function(codePoint) { + if (codePoint >= 0x30 && codePoint < 0x3A) { + return 26 + (codePoint - 0x30); + } + if (codePoint >= 0x41 && codePoint < 0x5B) { + return codePoint - 0x41; + } + if (codePoint >= 0x61 && codePoint < 0x7B) { + return codePoint - 0x61; + } + return base; +}; + +/** + * Converts a digit/integer into a basic code point. + * @see `basicToDigit()` + * @private + * @param {Number} digit The numeric value of a basic code point. + * @returns {Number} The basic code point whose value (when used for + * representing integers) is `digit`, which needs to be in the range + * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is + * used; else, the lowercase form is used. The behavior is undefined + * if `flag` is non-zero and `digit` has no uppercase form. + */ +const digitToBasic = function(digit, flag) { + // 0..25 map to ASCII a..z or A..Z + // 26..35 map to ASCII 0..9 + return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5); +}; + +/** + * Bias adaptation function as per section 3.4 of RFC 3492. + * https://tools.ietf.org/html/rfc3492#section-3.4 + * @private + */ +const adapt = function(delta, numPoints, firstTime) { + let k = 0; + delta = firstTime ? floor(delta / damp) : delta >> 1; + delta += floor(delta / numPoints); + for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) { + delta = floor(delta / baseMinusTMin); + } + return floor(k + (baseMinusTMin + 1) * delta / (delta + skew)); +}; + +/** + * Converts a Punycode string of ASCII-only symbols to a string of Unicode + * symbols. + * @memberOf punycode + * @param {String} input The Punycode string of ASCII-only symbols. + * @returns {String} The resulting string of Unicode symbols. + */ +const decode = function(input) { + // Don't use UCS-2. + const output = []; + const inputLength = input.length; + let i = 0; + let n = initialN; + let bias = initialBias; + + // Handle the basic code points: let `basic` be the number of input code + // points before the last delimiter, or `0` if there is none, then copy + // the first basic code points to the output. + + let basic = input.lastIndexOf(delimiter); + if (basic < 0) { + basic = 0; + } + + for (let j = 0; j < basic; ++j) { + // if it's not a basic code point + if (input.charCodeAt(j) >= 0x80) { + error('not-basic'); + } + output.push(input.charCodeAt(j)); + } + + // Main decoding loop: start just after the last delimiter if any basic code + // points were copied; start at the beginning otherwise. + + for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) { + + // `index` is the index of the next character to be consumed. + // Decode a generalized variable-length integer into `delta`, + // which gets added to `i`. The overflow checking is easier + // if we increase `i` as we go, then subtract off its starting + // value at the end to obtain `delta`. + const oldi = i; + for (let w = 1, k = base; /* no condition */; k += base) { + + if (index >= inputLength) { + error('invalid-input'); + } + + const digit = basicToDigit(input.charCodeAt(index++)); + + if (digit >= base) { + error('invalid-input'); + } + if (digit > floor((maxInt - i) / w)) { + error('overflow'); + } + + i += digit * w; + const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + + if (digit < t) { + break; + } + + const baseMinusT = base - t; + if (w > floor(maxInt / baseMinusT)) { + error('overflow'); + } + + w *= baseMinusT; + + } + + const out = output.length + 1; + bias = adapt(i - oldi, out, oldi == 0); + + // `i` was supposed to wrap around from `out` to `0`, + // incrementing `n` each time, so we'll fix that now: + if (floor(i / out) > maxInt - n) { + error('overflow'); + } + + n += floor(i / out); + i %= out; + + // Insert `n` at position `i` of the output. + output.splice(i++, 0, n); + + } + + return String.fromCodePoint(...output); +}; + +/** + * Converts a string of Unicode symbols (e.g. a domain name label) to a + * Punycode string of ASCII-only symbols. + * @memberOf punycode + * @param {String} input The string of Unicode symbols. + * @returns {String} The resulting Punycode string of ASCII-only symbols. + */ +const encode = function(input) { + const output = []; + + // Convert the input in UCS-2 to an array of Unicode code points. + input = ucs2decode(input); + + // Cache the length. + const inputLength = input.length; + + // Initialize the state. + let n = initialN; + let delta = 0; + let bias = initialBias; + + // Handle the basic code points. + for (const currentValue of input) { + if (currentValue < 0x80) { + output.push(stringFromCharCode(currentValue)); + } + } + + const basicLength = output.length; + let handledCPCount = basicLength; + + // `handledCPCount` is the number of code points that have been handled; + // `basicLength` is the number of basic code points. + + // Finish the basic string with a delimiter unless it's empty. + if (basicLength) { + output.push(delimiter); + } + + // Main encoding loop: + while (handledCPCount < inputLength) { + + // All non-basic code points < n have been handled already. Find the next + // larger one: + let m = maxInt; + for (const currentValue of input) { + if (currentValue >= n && currentValue < m) { + m = currentValue; + } + } + + // Increase `delta` enough to advance the decoder's state to , + // but guard against overflow. + const handledCPCountPlusOne = handledCPCount + 1; + if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) { + error('overflow'); + } + + delta += (m - n) * handledCPCountPlusOne; + n = m; + + for (const currentValue of input) { + if (currentValue < n && ++delta > maxInt) { + error('overflow'); + } + if (currentValue === n) { + // Represent delta as a generalized variable-length integer. + let q = delta; + for (let k = base; /* no condition */; k += base) { + const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + if (q < t) { + break; + } + const qMinusT = q - t; + const baseMinusT = base - t; + output.push( + stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)) + ); + q = floor(qMinusT / baseMinusT); + } + + output.push(stringFromCharCode(digitToBasic(q, 0))); + bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength); + delta = 0; + ++handledCPCount; + } + } + + ++delta; + ++n; + + } + return output.join(''); +}; + +/** + * Converts a Punycode string representing a domain name or an email address + * to Unicode. Only the Punycoded parts of the input will be converted, i.e. + * it doesn't matter if you call it on a string that has already been + * converted to Unicode. + * @memberOf punycode + * @param {String} input The Punycoded domain name or email address to + * convert to Unicode. + * @returns {String} The Unicode representation of the given Punycode + * string. + */ +const toUnicode = function(input) { + return mapDomain(input, function(string) { + return regexPunycode.test(string) + ? decode(string.slice(4).toLowerCase()) + : string; + }); +}; + +/** + * Converts a Unicode string representing a domain name or an email address to + * Punycode. Only the non-ASCII parts of the domain name will be converted, + * i.e. it doesn't matter if you call it with a domain that's already in + * ASCII. + * @memberOf punycode + * @param {String} input The domain name or email address to convert, as a + * Unicode string. + * @returns {String} The Punycode representation of the given domain name or + * email address. + */ +const toASCII = function(input) { + return mapDomain(input, function(string) { + return regexNonASCII.test(string) + ? 'xn--' + encode(string) + : string; + }); +}; + +/*--------------------------------------------------------------------------*/ + +/** Define the public API */ +const punycode = { + /** + * A string representing the current Punycode.js version number. + * @memberOf punycode + * @type String + */ + 'version': '2.3.1', + /** + * An object of methods to convert from JavaScript's internal character + * representation (UCS-2) to Unicode code points, and back. + * @see + * @memberOf punycode + * @type Object + */ + 'ucs2': { + 'decode': ucs2decode, + 'encode': ucs2encode + }, + 'decode': decode, + 'encode': encode, + 'toASCII': toASCII, + 'toUnicode': toUnicode +}; + +export { ucs2decode, ucs2encode, decode, encode, toASCII, toUnicode }; +export default punycode; diff --git a/week-3/04-course-app-hard/node_modules/punycode/punycode.js b/week-3/04-course-app-hard/node_modules/punycode/punycode.js new file mode 100644 index 000000000..a1ef25192 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/punycode/punycode.js @@ -0,0 +1,443 @@ +'use strict'; + +/** Highest positive signed 32-bit float value */ +const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1 + +/** Bootstring parameters */ +const base = 36; +const tMin = 1; +const tMax = 26; +const skew = 38; +const damp = 700; +const initialBias = 72; +const initialN = 128; // 0x80 +const delimiter = '-'; // '\x2D' + +/** Regular expressions */ +const regexPunycode = /^xn--/; +const regexNonASCII = /[^\0-\x7F]/; // Note: U+007F DEL is excluded too. +const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators + +/** Error messages */ +const errors = { + 'overflow': 'Overflow: input needs wider integers to process', + 'not-basic': 'Illegal input >= 0x80 (not a basic code point)', + 'invalid-input': 'Invalid input' +}; + +/** Convenience shortcuts */ +const baseMinusTMin = base - tMin; +const floor = Math.floor; +const stringFromCharCode = String.fromCharCode; + +/*--------------------------------------------------------------------------*/ + +/** + * A generic error utility function. + * @private + * @param {String} type The error type. + * @returns {Error} Throws a `RangeError` with the applicable error message. + */ +function error(type) { + throw new RangeError(errors[type]); +} + +/** + * A generic `Array#map` utility function. + * @private + * @param {Array} array The array to iterate over. + * @param {Function} callback The function that gets called for every array + * item. + * @returns {Array} A new array of values returned by the callback function. + */ +function map(array, callback) { + const result = []; + let length = array.length; + while (length--) { + result[length] = callback(array[length]); + } + return result; +} + +/** + * A simple `Array#map`-like wrapper to work with domain name strings or email + * addresses. + * @private + * @param {String} domain The domain name or email address. + * @param {Function} callback The function that gets called for every + * character. + * @returns {String} A new string of characters returned by the callback + * function. + */ +function mapDomain(domain, callback) { + const parts = domain.split('@'); + let result = ''; + if (parts.length > 1) { + // In email addresses, only the domain name should be punycoded. Leave + // the local part (i.e. everything up to `@`) intact. + result = parts[0] + '@'; + domain = parts[1]; + } + // Avoid `split(regex)` for IE8 compatibility. See #17. + domain = domain.replace(regexSeparators, '\x2E'); + const labels = domain.split('.'); + const encoded = map(labels, callback).join('.'); + return result + encoded; +} + +/** + * Creates an array containing the numeric code points of each Unicode + * character in the string. While JavaScript uses UCS-2 internally, + * this function will convert a pair of surrogate halves (each of which + * UCS-2 exposes as separate characters) into a single code point, + * matching UTF-16. + * @see `punycode.ucs2.encode` + * @see + * @memberOf punycode.ucs2 + * @name decode + * @param {String} string The Unicode input string (UCS-2). + * @returns {Array} The new array of code points. + */ +function ucs2decode(string) { + const output = []; + let counter = 0; + const length = string.length; + while (counter < length) { + const value = string.charCodeAt(counter++); + if (value >= 0xD800 && value <= 0xDBFF && counter < length) { + // It's a high surrogate, and there is a next character. + const extra = string.charCodeAt(counter++); + if ((extra & 0xFC00) == 0xDC00) { // Low surrogate. + output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000); + } else { + // It's an unmatched surrogate; only append this code unit, in case the + // next code unit is the high surrogate of a surrogate pair. + output.push(value); + counter--; + } + } else { + output.push(value); + } + } + return output; +} + +/** + * Creates a string based on an array of numeric code points. + * @see `punycode.ucs2.decode` + * @memberOf punycode.ucs2 + * @name encode + * @param {Array} codePoints The array of numeric code points. + * @returns {String} The new Unicode string (UCS-2). + */ +const ucs2encode = codePoints => String.fromCodePoint(...codePoints); + +/** + * Converts a basic code point into a digit/integer. + * @see `digitToBasic()` + * @private + * @param {Number} codePoint The basic numeric code point value. + * @returns {Number} The numeric value of a basic code point (for use in + * representing integers) in the range `0` to `base - 1`, or `base` if + * the code point does not represent a value. + */ +const basicToDigit = function(codePoint) { + if (codePoint >= 0x30 && codePoint < 0x3A) { + return 26 + (codePoint - 0x30); + } + if (codePoint >= 0x41 && codePoint < 0x5B) { + return codePoint - 0x41; + } + if (codePoint >= 0x61 && codePoint < 0x7B) { + return codePoint - 0x61; + } + return base; +}; + +/** + * Converts a digit/integer into a basic code point. + * @see `basicToDigit()` + * @private + * @param {Number} digit The numeric value of a basic code point. + * @returns {Number} The basic code point whose value (when used for + * representing integers) is `digit`, which needs to be in the range + * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is + * used; else, the lowercase form is used. The behavior is undefined + * if `flag` is non-zero and `digit` has no uppercase form. + */ +const digitToBasic = function(digit, flag) { + // 0..25 map to ASCII a..z or A..Z + // 26..35 map to ASCII 0..9 + return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5); +}; + +/** + * Bias adaptation function as per section 3.4 of RFC 3492. + * https://tools.ietf.org/html/rfc3492#section-3.4 + * @private + */ +const adapt = function(delta, numPoints, firstTime) { + let k = 0; + delta = firstTime ? floor(delta / damp) : delta >> 1; + delta += floor(delta / numPoints); + for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) { + delta = floor(delta / baseMinusTMin); + } + return floor(k + (baseMinusTMin + 1) * delta / (delta + skew)); +}; + +/** + * Converts a Punycode string of ASCII-only symbols to a string of Unicode + * symbols. + * @memberOf punycode + * @param {String} input The Punycode string of ASCII-only symbols. + * @returns {String} The resulting string of Unicode symbols. + */ +const decode = function(input) { + // Don't use UCS-2. + const output = []; + const inputLength = input.length; + let i = 0; + let n = initialN; + let bias = initialBias; + + // Handle the basic code points: let `basic` be the number of input code + // points before the last delimiter, or `0` if there is none, then copy + // the first basic code points to the output. + + let basic = input.lastIndexOf(delimiter); + if (basic < 0) { + basic = 0; + } + + for (let j = 0; j < basic; ++j) { + // if it's not a basic code point + if (input.charCodeAt(j) >= 0x80) { + error('not-basic'); + } + output.push(input.charCodeAt(j)); + } + + // Main decoding loop: start just after the last delimiter if any basic code + // points were copied; start at the beginning otherwise. + + for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) { + + // `index` is the index of the next character to be consumed. + // Decode a generalized variable-length integer into `delta`, + // which gets added to `i`. The overflow checking is easier + // if we increase `i` as we go, then subtract off its starting + // value at the end to obtain `delta`. + const oldi = i; + for (let w = 1, k = base; /* no condition */; k += base) { + + if (index >= inputLength) { + error('invalid-input'); + } + + const digit = basicToDigit(input.charCodeAt(index++)); + + if (digit >= base) { + error('invalid-input'); + } + if (digit > floor((maxInt - i) / w)) { + error('overflow'); + } + + i += digit * w; + const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + + if (digit < t) { + break; + } + + const baseMinusT = base - t; + if (w > floor(maxInt / baseMinusT)) { + error('overflow'); + } + + w *= baseMinusT; + + } + + const out = output.length + 1; + bias = adapt(i - oldi, out, oldi == 0); + + // `i` was supposed to wrap around from `out` to `0`, + // incrementing `n` each time, so we'll fix that now: + if (floor(i / out) > maxInt - n) { + error('overflow'); + } + + n += floor(i / out); + i %= out; + + // Insert `n` at position `i` of the output. + output.splice(i++, 0, n); + + } + + return String.fromCodePoint(...output); +}; + +/** + * Converts a string of Unicode symbols (e.g. a domain name label) to a + * Punycode string of ASCII-only symbols. + * @memberOf punycode + * @param {String} input The string of Unicode symbols. + * @returns {String} The resulting Punycode string of ASCII-only symbols. + */ +const encode = function(input) { + const output = []; + + // Convert the input in UCS-2 to an array of Unicode code points. + input = ucs2decode(input); + + // Cache the length. + const inputLength = input.length; + + // Initialize the state. + let n = initialN; + let delta = 0; + let bias = initialBias; + + // Handle the basic code points. + for (const currentValue of input) { + if (currentValue < 0x80) { + output.push(stringFromCharCode(currentValue)); + } + } + + const basicLength = output.length; + let handledCPCount = basicLength; + + // `handledCPCount` is the number of code points that have been handled; + // `basicLength` is the number of basic code points. + + // Finish the basic string with a delimiter unless it's empty. + if (basicLength) { + output.push(delimiter); + } + + // Main encoding loop: + while (handledCPCount < inputLength) { + + // All non-basic code points < n have been handled already. Find the next + // larger one: + let m = maxInt; + for (const currentValue of input) { + if (currentValue >= n && currentValue < m) { + m = currentValue; + } + } + + // Increase `delta` enough to advance the decoder's state to , + // but guard against overflow. + const handledCPCountPlusOne = handledCPCount + 1; + if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) { + error('overflow'); + } + + delta += (m - n) * handledCPCountPlusOne; + n = m; + + for (const currentValue of input) { + if (currentValue < n && ++delta > maxInt) { + error('overflow'); + } + if (currentValue === n) { + // Represent delta as a generalized variable-length integer. + let q = delta; + for (let k = base; /* no condition */; k += base) { + const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + if (q < t) { + break; + } + const qMinusT = q - t; + const baseMinusT = base - t; + output.push( + stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)) + ); + q = floor(qMinusT / baseMinusT); + } + + output.push(stringFromCharCode(digitToBasic(q, 0))); + bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength); + delta = 0; + ++handledCPCount; + } + } + + ++delta; + ++n; + + } + return output.join(''); +}; + +/** + * Converts a Punycode string representing a domain name or an email address + * to Unicode. Only the Punycoded parts of the input will be converted, i.e. + * it doesn't matter if you call it on a string that has already been + * converted to Unicode. + * @memberOf punycode + * @param {String} input The Punycoded domain name or email address to + * convert to Unicode. + * @returns {String} The Unicode representation of the given Punycode + * string. + */ +const toUnicode = function(input) { + return mapDomain(input, function(string) { + return regexPunycode.test(string) + ? decode(string.slice(4).toLowerCase()) + : string; + }); +}; + +/** + * Converts a Unicode string representing a domain name or an email address to + * Punycode. Only the non-ASCII parts of the domain name will be converted, + * i.e. it doesn't matter if you call it with a domain that's already in + * ASCII. + * @memberOf punycode + * @param {String} input The domain name or email address to convert, as a + * Unicode string. + * @returns {String} The Punycode representation of the given domain name or + * email address. + */ +const toASCII = function(input) { + return mapDomain(input, function(string) { + return regexNonASCII.test(string) + ? 'xn--' + encode(string) + : string; + }); +}; + +/*--------------------------------------------------------------------------*/ + +/** Define the public API */ +const punycode = { + /** + * A string representing the current Punycode.js version number. + * @memberOf punycode + * @type String + */ + 'version': '2.3.1', + /** + * An object of methods to convert from JavaScript's internal character + * representation (UCS-2) to Unicode code points, and back. + * @see + * @memberOf punycode + * @type Object + */ + 'ucs2': { + 'decode': ucs2decode, + 'encode': ucs2encode + }, + 'decode': decode, + 'encode': encode, + 'toASCII': toASCII, + 'toUnicode': toUnicode +}; + +module.exports = punycode; diff --git a/week-3/04-course-app-hard/node_modules/safe-buffer/LICENSE b/week-3/04-course-app-hard/node_modules/safe-buffer/LICENSE new file mode 100644 index 000000000..0c068ceec --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/safe-buffer/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) Feross Aboukhadijeh + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/safe-buffer/README.md b/week-3/04-course-app-hard/node_modules/safe-buffer/README.md new file mode 100644 index 000000000..e9a81afd0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/safe-buffer/README.md @@ -0,0 +1,584 @@ +# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url] + +[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg +[travis-url]: https://travis-ci.org/feross/safe-buffer +[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg +[npm-url]: https://npmjs.org/package/safe-buffer +[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg +[downloads-url]: https://npmjs.org/package/safe-buffer +[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg +[standard-url]: https://standardjs.com + +#### Safer Node.js Buffer API + +**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`, +`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.** + +**Uses the built-in implementation when available.** + +## install + +``` +npm install safe-buffer +``` + +## usage + +The goal of this package is to provide a safe replacement for the node.js `Buffer`. + +It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to +the top of your node.js modules: + +```js +var Buffer = require('safe-buffer').Buffer + +// Existing buffer code will continue to work without issues: + +new Buffer('hey', 'utf8') +new Buffer([1, 2, 3], 'utf8') +new Buffer(obj) +new Buffer(16) // create an uninitialized buffer (potentially unsafe) + +// But you can use these new explicit APIs to make clear what you want: + +Buffer.from('hey', 'utf8') // convert from many types to a Buffer +Buffer.alloc(16) // create a zero-filled buffer (safe) +Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe) +``` + +## api + +### Class Method: Buffer.from(array) + + +* `array` {Array} + +Allocates a new `Buffer` using an `array` of octets. + +```js +const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]); + // creates a new Buffer containing ASCII bytes + // ['b','u','f','f','e','r'] +``` + +A `TypeError` will be thrown if `array` is not an `Array`. + +### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]]) + + +* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or + a `new ArrayBuffer()` +* `byteOffset` {Number} Default: `0` +* `length` {Number} Default: `arrayBuffer.length - byteOffset` + +When passed a reference to the `.buffer` property of a `TypedArray` instance, +the newly created `Buffer` will share the same allocated memory as the +TypedArray. + +```js +const arr = new Uint16Array(2); +arr[0] = 5000; +arr[1] = 4000; + +const buf = Buffer.from(arr.buffer); // shares the memory with arr; + +console.log(buf); + // Prints: + +// changing the TypedArray changes the Buffer also +arr[1] = 6000; + +console.log(buf); + // Prints: +``` + +The optional `byteOffset` and `length` arguments specify a memory range within +the `arrayBuffer` that will be shared by the `Buffer`. + +```js +const ab = new ArrayBuffer(10); +const buf = Buffer.from(ab, 0, 2); +console.log(buf.length); + // Prints: 2 +``` + +A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`. + +### Class Method: Buffer.from(buffer) + + +* `buffer` {Buffer} + +Copies the passed `buffer` data onto a new `Buffer` instance. + +```js +const buf1 = Buffer.from('buffer'); +const buf2 = Buffer.from(buf1); + +buf1[0] = 0x61; +console.log(buf1.toString()); + // 'auffer' +console.log(buf2.toString()); + // 'buffer' (copy is not changed) +``` + +A `TypeError` will be thrown if `buffer` is not a `Buffer`. + +### Class Method: Buffer.from(str[, encoding]) + + +* `str` {String} String to encode. +* `encoding` {String} Encoding to use, Default: `'utf8'` + +Creates a new `Buffer` containing the given JavaScript string `str`. If +provided, the `encoding` parameter identifies the character encoding. +If not provided, `encoding` defaults to `'utf8'`. + +```js +const buf1 = Buffer.from('this is a tést'); +console.log(buf1.toString()); + // prints: this is a tést +console.log(buf1.toString('ascii')); + // prints: this is a tC)st + +const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex'); +console.log(buf2.toString()); + // prints: this is a tést +``` + +A `TypeError` will be thrown if `str` is not a string. + +### Class Method: Buffer.alloc(size[, fill[, encoding]]) + + +* `size` {Number} +* `fill` {Value} Default: `undefined` +* `encoding` {String} Default: `utf8` + +Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the +`Buffer` will be *zero-filled*. + +```js +const buf = Buffer.alloc(5); +console.log(buf); + // +``` + +The `size` must be less than or equal to the value of +`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is +`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will +be created if a `size` less than or equal to 0 is specified. + +If `fill` is specified, the allocated `Buffer` will be initialized by calling +`buf.fill(fill)`. See [`buf.fill()`][] for more information. + +```js +const buf = Buffer.alloc(5, 'a'); +console.log(buf); + // +``` + +If both `fill` and `encoding` are specified, the allocated `Buffer` will be +initialized by calling `buf.fill(fill, encoding)`. For example: + +```js +const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64'); +console.log(buf); + // +``` + +Calling `Buffer.alloc(size)` can be significantly slower than the alternative +`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance +contents will *never contain sensitive data*. + +A `TypeError` will be thrown if `size` is not a number. + +### Class Method: Buffer.allocUnsafe(size) + + +* `size` {Number} + +Allocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must +be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit +architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is +thrown. A zero-length Buffer will be created if a `size` less than or equal to +0 is specified. + +The underlying memory for `Buffer` instances created in this way is *not +initialized*. The contents of the newly created `Buffer` are unknown and +*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such +`Buffer` instances to zeroes. + +```js +const buf = Buffer.allocUnsafe(5); +console.log(buf); + // + // (octets will be different, every time) +buf.fill(0); +console.log(buf); + // +``` + +A `TypeError` will be thrown if `size` is not a number. + +Note that the `Buffer` module pre-allocates an internal `Buffer` instance of +size `Buffer.poolSize` that is used as a pool for the fast allocation of new +`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated +`new Buffer(size)` constructor) only when `size` is less than or equal to +`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default +value of `Buffer.poolSize` is `8192` but can be modified. + +Use of this pre-allocated internal memory pool is a key difference between +calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`. +Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer +pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal +Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The +difference is subtle but can be important when an application requires the +additional performance that `Buffer.allocUnsafe(size)` provides. + +### Class Method: Buffer.allocUnsafeSlow(size) + + +* `size` {Number} + +Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The +`size` must be less than or equal to the value of +`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is +`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will +be created if a `size` less than or equal to 0 is specified. + +The underlying memory for `Buffer` instances created in this way is *not +initialized*. The contents of the newly created `Buffer` are unknown and +*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such +`Buffer` instances to zeroes. + +When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances, +allocations under 4KB are, by default, sliced from a single pre-allocated +`Buffer`. This allows applications to avoid the garbage collection overhead of +creating many individually allocated Buffers. This approach improves both +performance and memory usage by eliminating the need to track and cleanup as +many `Persistent` objects. + +However, in the case where a developer may need to retain a small chunk of +memory from a pool for an indeterminate amount of time, it may be appropriate +to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then +copy out the relevant bits. + +```js +// need to keep around a few small chunks of memory +const store = []; + +socket.on('readable', () => { + const data = socket.read(); + // allocate for retained data + const sb = Buffer.allocUnsafeSlow(10); + // copy the data into the new allocation + data.copy(sb, 0, 0, 10); + store.push(sb); +}); +``` + +Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after* +a developer has observed undue memory retention in their applications. + +A `TypeError` will be thrown if `size` is not a number. + +### All the Rest + +The rest of the `Buffer` API is exactly the same as in node.js. +[See the docs](https://nodejs.org/api/buffer.html). + + +## Related links + +- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660) +- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4) + +## Why is `Buffer` unsafe? + +Today, the node.js `Buffer` constructor is overloaded to handle many different argument +types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.), +`ArrayBuffer`, and also `Number`. + +The API is optimized for convenience: you can throw any type at it, and it will try to do +what you want. + +Because the Buffer constructor is so powerful, you often see code like this: + +```js +// Convert UTF-8 strings to hex +function toHex (str) { + return new Buffer(str).toString('hex') +} +``` + +***But what happens if `toHex` is called with a `Number` argument?*** + +### Remote Memory Disclosure + +If an attacker can make your program call the `Buffer` constructor with a `Number` +argument, then they can make it allocate uninitialized memory from the node.js process. +This could potentially disclose TLS private keys, user data, or database passwords. + +When the `Buffer` constructor is passed a `Number` argument, it returns an +**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like +this, you **MUST** overwrite the contents before returning it to the user. + +From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size): + +> `new Buffer(size)` +> +> - `size` Number +> +> The underlying memory for `Buffer` instances created in this way is not initialized. +> **The contents of a newly created `Buffer` are unknown and could contain sensitive +> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes. + +(Emphasis our own.) + +Whenever the programmer intended to create an uninitialized `Buffer` you often see code +like this: + +```js +var buf = new Buffer(16) + +// Immediately overwrite the uninitialized buffer with data from another buffer +for (var i = 0; i < buf.length; i++) { + buf[i] = otherBuf[i] +} +``` + + +### Would this ever be a problem in real code? + +Yes. It's surprisingly common to forget to check the type of your variables in a +dynamically-typed language like JavaScript. + +Usually the consequences of assuming the wrong type is that your program crashes with an +uncaught exception. But the failure mode for forgetting to check the type of arguments to +the `Buffer` constructor is more catastrophic. + +Here's an example of a vulnerable service that takes a JSON payload and converts it to +hex: + +```js +// Take a JSON payload {str: "some string"} and convert it to hex +var server = http.createServer(function (req, res) { + var data = '' + req.setEncoding('utf8') + req.on('data', function (chunk) { + data += chunk + }) + req.on('end', function () { + var body = JSON.parse(data) + res.end(new Buffer(body.str).toString('hex')) + }) +}) + +server.listen(8080) +``` + +In this example, an http client just has to send: + +```json +{ + "str": 1000 +} +``` + +and it will get back 1,000 bytes of uninitialized memory from the server. + +This is a very serious bug. It's similar in severity to the +[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process +memory by remote attackers. + + +### Which real-world packages were vulnerable? + +#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht) + +[Mathias Buus](https://github.com/mafintosh) and I +([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages, +[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow +anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get +them to reveal 20 bytes at a time of uninitialized memory from the node.js process. + +Here's +[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8) +that fixed it. We released a new fixed version, created a +[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all +vulnerable versions on npm so users will get a warning to upgrade to a newer version. + +#### [`ws`](https://www.npmjs.com/package/ws) + +That got us wondering if there were other vulnerable packages. Sure enough, within a short +period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the +most popular WebSocket implementation in node.js. + +If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as +expected, then uninitialized server memory would be disclosed to the remote peer. + +These were the vulnerable methods: + +```js +socket.send(number) +socket.ping(number) +socket.pong(number) +``` + +Here's a vulnerable socket server with some echo functionality: + +```js +server.on('connection', function (socket) { + socket.on('message', function (message) { + message = JSON.parse(message) + if (message.type === 'echo') { + socket.send(message.data) // send back the user's message + } + }) +}) +``` + +`socket.send(number)` called on the server, will disclose server memory. + +Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue +was fixed, with a more detailed explanation. Props to +[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the +[Node Security Project disclosure](https://nodesecurity.io/advisories/67). + + +### What's the solution? + +It's important that node.js offers a fast way to get memory otherwise performance-critical +applications would needlessly get a lot slower. + +But we need a better way to *signal our intent* as programmers. **When we want +uninitialized memory, we should request it explicitly.** + +Sensitive functionality should not be packed into a developer-friendly API that loosely +accepts many different types. This type of API encourages the lazy practice of passing +variables in without checking the type very carefully. + +#### A new API: `Buffer.allocUnsafe(number)` + +The functionality of creating buffers with uninitialized memory should be part of another +API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that +frequently gets user input of all sorts of different types passed into it. + +```js +var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory! + +// Immediately overwrite the uninitialized buffer with data from another buffer +for (var i = 0; i < buf.length; i++) { + buf[i] = otherBuf[i] +} +``` + + +### How do we fix node.js core? + +We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as +`semver-major`) which defends against one case: + +```js +var str = 16 +new Buffer(str, 'utf8') +``` + +In this situation, it's implied that the programmer intended the first argument to be a +string, since they passed an encoding as a second argument. Today, node.js will allocate +uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not +what the programmer intended. + +But this is only a partial solution, since if the programmer does `new Buffer(variable)` +(without an `encoding` parameter) there's no way to know what they intended. If `variable` +is sometimes a number, then uninitialized memory will sometimes be returned. + +### What's the real long-term fix? + +We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when +we need uninitialized memory. But that would break 1000s of packages. + +~~We believe the best solution is to:~~ + +~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~ + +~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~ + +#### Update + +We now support adding three new APIs: + +- `Buffer.from(value)` - convert from any type to a buffer +- `Buffer.alloc(size)` - create a zero-filled buffer +- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size + +This solves the core problem that affected `ws` and `bittorrent-dht` which is +`Buffer(variable)` getting tricked into taking a number argument. + +This way, existing code continues working and the impact on the npm ecosystem will be +minimal. Over time, npm maintainers can migrate performance-critical code to use +`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`. + + +### Conclusion + +We think there's a serious design issue with the `Buffer` API as it exists today. It +promotes insecure software by putting high-risk functionality into a convenient API +with friendly "developer ergonomics". + +This wasn't merely a theoretical exercise because we found the issue in some of the +most popular npm packages. + +Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of +`buffer`. + +```js +var Buffer = require('safe-buffer').Buffer +``` + +Eventually, we hope that node.js core can switch to this new, safer behavior. We believe +the impact on the ecosystem would be minimal since it's not a breaking change. +Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while +older, insecure packages would magically become safe from this attack vector. + + +## links + +- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514) +- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67) +- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68) + + +## credit + +The original issues in `bittorrent-dht` +([disclosure](https://nodesecurity.io/advisories/68)) and +`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by +[Mathias Buus](https://github.com/mafintosh) and +[Feross Aboukhadijeh](http://feross.org/). + +Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues +and for his work running the [Node Security Project](https://nodesecurity.io/). + +Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and +auditing the code. + + +## license + +MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org) diff --git a/week-3/04-course-app-hard/node_modules/safe-buffer/index.d.ts b/week-3/04-course-app-hard/node_modules/safe-buffer/index.d.ts new file mode 100644 index 000000000..e9fed809a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/safe-buffer/index.d.ts @@ -0,0 +1,187 @@ +declare module "safe-buffer" { + export class Buffer { + length: number + write(string: string, offset?: number, length?: number, encoding?: string): number; + toString(encoding?: string, start?: number, end?: number): string; + toJSON(): { type: 'Buffer', data: any[] }; + equals(otherBuffer: Buffer): boolean; + compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number; + copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number; + slice(start?: number, end?: number): Buffer; + writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number; + readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number; + readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number; + readIntLE(offset: number, byteLength: number, noAssert?: boolean): number; + readIntBE(offset: number, byteLength: number, noAssert?: boolean): number; + readUInt8(offset: number, noAssert?: boolean): number; + readUInt16LE(offset: number, noAssert?: boolean): number; + readUInt16BE(offset: number, noAssert?: boolean): number; + readUInt32LE(offset: number, noAssert?: boolean): number; + readUInt32BE(offset: number, noAssert?: boolean): number; + readInt8(offset: number, noAssert?: boolean): number; + readInt16LE(offset: number, noAssert?: boolean): number; + readInt16BE(offset: number, noAssert?: boolean): number; + readInt32LE(offset: number, noAssert?: boolean): number; + readInt32BE(offset: number, noAssert?: boolean): number; + readFloatLE(offset: number, noAssert?: boolean): number; + readFloatBE(offset: number, noAssert?: boolean): number; + readDoubleLE(offset: number, noAssert?: boolean): number; + readDoubleBE(offset: number, noAssert?: boolean): number; + swap16(): Buffer; + swap32(): Buffer; + swap64(): Buffer; + writeUInt8(value: number, offset: number, noAssert?: boolean): number; + writeUInt16LE(value: number, offset: number, noAssert?: boolean): number; + writeUInt16BE(value: number, offset: number, noAssert?: boolean): number; + writeUInt32LE(value: number, offset: number, noAssert?: boolean): number; + writeUInt32BE(value: number, offset: number, noAssert?: boolean): number; + writeInt8(value: number, offset: number, noAssert?: boolean): number; + writeInt16LE(value: number, offset: number, noAssert?: boolean): number; + writeInt16BE(value: number, offset: number, noAssert?: boolean): number; + writeInt32LE(value: number, offset: number, noAssert?: boolean): number; + writeInt32BE(value: number, offset: number, noAssert?: boolean): number; + writeFloatLE(value: number, offset: number, noAssert?: boolean): number; + writeFloatBE(value: number, offset: number, noAssert?: boolean): number; + writeDoubleLE(value: number, offset: number, noAssert?: boolean): number; + writeDoubleBE(value: number, offset: number, noAssert?: boolean): number; + fill(value: any, offset?: number, end?: number): this; + indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number; + lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number; + includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean; + + /** + * Allocates a new buffer containing the given {str}. + * + * @param str String to store in buffer. + * @param encoding encoding to use, optional. Default is 'utf8' + */ + constructor (str: string, encoding?: string); + /** + * Allocates a new buffer of {size} octets. + * + * @param size count of octets to allocate. + */ + constructor (size: number); + /** + * Allocates a new buffer containing the given {array} of octets. + * + * @param array The octets to store. + */ + constructor (array: Uint8Array); + /** + * Produces a Buffer backed by the same allocated memory as + * the given {ArrayBuffer}. + * + * + * @param arrayBuffer The ArrayBuffer with which to share memory. + */ + constructor (arrayBuffer: ArrayBuffer); + /** + * Allocates a new buffer containing the given {array} of octets. + * + * @param array The octets to store. + */ + constructor (array: any[]); + /** + * Copies the passed {buffer} data onto a new {Buffer} instance. + * + * @param buffer The buffer to copy. + */ + constructor (buffer: Buffer); + prototype: Buffer; + /** + * Allocates a new Buffer using an {array} of octets. + * + * @param array + */ + static from(array: any[]): Buffer; + /** + * When passed a reference to the .buffer property of a TypedArray instance, + * the newly created Buffer will share the same allocated memory as the TypedArray. + * The optional {byteOffset} and {length} arguments specify a memory range + * within the {arrayBuffer} that will be shared by the Buffer. + * + * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer() + * @param byteOffset + * @param length + */ + static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer; + /** + * Copies the passed {buffer} data onto a new Buffer instance. + * + * @param buffer + */ + static from(buffer: Buffer): Buffer; + /** + * Creates a new Buffer containing the given JavaScript string {str}. + * If provided, the {encoding} parameter identifies the character encoding. + * If not provided, {encoding} defaults to 'utf8'. + * + * @param str + */ + static from(str: string, encoding?: string): Buffer; + /** + * Returns true if {obj} is a Buffer + * + * @param obj object to test. + */ + static isBuffer(obj: any): obj is Buffer; + /** + * Returns true if {encoding} is a valid encoding argument. + * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex' + * + * @param encoding string to test. + */ + static isEncoding(encoding: string): boolean; + /** + * Gives the actual byte length of a string. encoding defaults to 'utf8'. + * This is not the same as String.prototype.length since that returns the number of characters in a string. + * + * @param string string to test. + * @param encoding encoding used to evaluate (defaults to 'utf8') + */ + static byteLength(string: string, encoding?: string): number; + /** + * Returns a buffer which is the result of concatenating all the buffers in the list together. + * + * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer. + * If the list has exactly one item, then the first item of the list is returned. + * If the list has more than one item, then a new Buffer is created. + * + * @param list An array of Buffer objects to concatenate + * @param totalLength Total length of the buffers when concatenated. + * If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly. + */ + static concat(list: Buffer[], totalLength?: number): Buffer; + /** + * The same as buf1.compare(buf2). + */ + static compare(buf1: Buffer, buf2: Buffer): number; + /** + * Allocates a new buffer of {size} octets. + * + * @param size count of octets to allocate. + * @param fill if specified, buffer will be initialized by calling buf.fill(fill). + * If parameter is omitted, buffer will be filled with zeros. + * @param encoding encoding used for call to buf.fill while initalizing + */ + static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer; + /** + * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents + * of the newly created Buffer are unknown and may contain sensitive data. + * + * @param size count of octets to allocate + */ + static allocUnsafe(size: number): Buffer; + /** + * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents + * of the newly created Buffer are unknown and may contain sensitive data. + * + * @param size count of octets to allocate + */ + static allocUnsafeSlow(size: number): Buffer; + } +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/safe-buffer/index.js b/week-3/04-course-app-hard/node_modules/safe-buffer/index.js new file mode 100644 index 000000000..f8d3ec988 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/safe-buffer/index.js @@ -0,0 +1,65 @@ +/*! safe-buffer. MIT License. Feross Aboukhadijeh */ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +// alternative to using Object.keys for old browsers +function copyProps (src, dst) { + for (var key in src) { + dst[key] = src[key] + } +} +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + copyProps(buffer, exports) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.prototype = Object.create(Buffer.prototype) + +// Copy static methods from Buffer +copyProps(Buffer, SafeBuffer) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} diff --git a/week-3/04-course-app-hard/node_modules/safe-buffer/package.json b/week-3/04-course-app-hard/node_modules/safe-buffer/package.json new file mode 100644 index 000000000..f2869e256 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/safe-buffer/package.json @@ -0,0 +1,51 @@ +{ + "name": "safe-buffer", + "description": "Safer Node.js Buffer API", + "version": "5.2.1", + "author": { + "name": "Feross Aboukhadijeh", + "email": "feross@feross.org", + "url": "https://feross.org" + }, + "bugs": { + "url": "https://github.com/feross/safe-buffer/issues" + }, + "devDependencies": { + "standard": "*", + "tape": "^5.0.0" + }, + "homepage": "https://github.com/feross/safe-buffer", + "keywords": [ + "buffer", + "buffer allocate", + "node security", + "safe", + "safe-buffer", + "security", + "uninitialized" + ], + "license": "MIT", + "main": "index.js", + "types": "index.d.ts", + "repository": { + "type": "git", + "url": "git://github.com/feross/safe-buffer.git" + }, + "scripts": { + "test": "standard && tape test/*.js" + }, + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ] +} diff --git a/week-3/04-course-app-hard/node_modules/semver/LICENSE b/week-3/04-course-app-hard/node_modules/semver/LICENSE new file mode 100644 index 000000000..19129e315 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/LICENSE @@ -0,0 +1,15 @@ +The ISC License + +Copyright (c) Isaac Z. Schlueter and Contributors + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted, provided that the above +copyright notice and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR +IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/semver/README.md b/week-3/04-course-app-hard/node_modules/semver/README.md new file mode 100644 index 000000000..673e9c35c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/README.md @@ -0,0 +1,654 @@ +semver(1) -- The semantic versioner for npm +=========================================== + +## Install + +```bash +npm install semver +```` + +## Usage + +As a node module: + +```js +const semver = require('semver') + +semver.valid('1.2.3') // '1.2.3' +semver.valid('a.b.c') // null +semver.clean(' =v1.2.3 ') // '1.2.3' +semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true +semver.gt('1.2.3', '9.8.7') // false +semver.lt('1.2.3', '9.8.7') // true +semver.minVersion('>=1.0.0') // '1.0.0' +semver.valid(semver.coerce('v2')) // '2.0.0' +semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7' +``` + +You can also just load the module for the function that you care about if +you'd like to minimize your footprint. + +```js +// load the whole API at once in a single object +const semver = require('semver') + +// or just load the bits you need +// all of them listed here, just pick and choose what you want + +// classes +const SemVer = require('semver/classes/semver') +const Comparator = require('semver/classes/comparator') +const Range = require('semver/classes/range') + +// functions for working with versions +const semverParse = require('semver/functions/parse') +const semverValid = require('semver/functions/valid') +const semverClean = require('semver/functions/clean') +const semverInc = require('semver/functions/inc') +const semverDiff = require('semver/functions/diff') +const semverMajor = require('semver/functions/major') +const semverMinor = require('semver/functions/minor') +const semverPatch = require('semver/functions/patch') +const semverPrerelease = require('semver/functions/prerelease') +const semverCompare = require('semver/functions/compare') +const semverRcompare = require('semver/functions/rcompare') +const semverCompareLoose = require('semver/functions/compare-loose') +const semverCompareBuild = require('semver/functions/compare-build') +const semverSort = require('semver/functions/sort') +const semverRsort = require('semver/functions/rsort') + +// low-level comparators between versions +const semverGt = require('semver/functions/gt') +const semverLt = require('semver/functions/lt') +const semverEq = require('semver/functions/eq') +const semverNeq = require('semver/functions/neq') +const semverGte = require('semver/functions/gte') +const semverLte = require('semver/functions/lte') +const semverCmp = require('semver/functions/cmp') +const semverCoerce = require('semver/functions/coerce') + +// working with ranges +const semverSatisfies = require('semver/functions/satisfies') +const semverMaxSatisfying = require('semver/ranges/max-satisfying') +const semverMinSatisfying = require('semver/ranges/min-satisfying') +const semverToComparators = require('semver/ranges/to-comparators') +const semverMinVersion = require('semver/ranges/min-version') +const semverValidRange = require('semver/ranges/valid') +const semverOutside = require('semver/ranges/outside') +const semverGtr = require('semver/ranges/gtr') +const semverLtr = require('semver/ranges/ltr') +const semverIntersects = require('semver/ranges/intersects') +const semverSimplifyRange = require('semver/ranges/simplify') +const semverRangeSubset = require('semver/ranges/subset') +``` + +As a command-line utility: + +``` +$ semver -h + +A JavaScript implementation of the https://semver.org/ specification +Copyright Isaac Z. Schlueter + +Usage: semver [options] [ [...]] +Prints valid versions sorted by SemVer precedence + +Options: +-r --range + Print versions that match the specified range. + +-i --increment [] + Increment a version by the specified level. Level can + be one of: major, minor, patch, premajor, preminor, + prepatch, or prerelease. Default level is 'patch'. + Only one version may be specified. + +--preid + Identifier to be used to prefix premajor, preminor, + prepatch or prerelease version increments. + +-l --loose + Interpret versions and ranges loosely + +-n <0|1> + This is the base to be used for the prerelease identifier. + +-p --include-prerelease + Always include prerelease versions in range matching + +-c --coerce + Coerce a string into SemVer if possible + (does not imply --loose) + +--rtl + Coerce version strings right to left + +--ltr + Coerce version strings left to right (default) + +Program exits successfully if any valid version satisfies +all supplied ranges, and prints all satisfying versions. + +If no satisfying versions are found, then exits failure. + +Versions are printed in ascending order, so supplying +multiple versions to the utility will just sort them. +``` + +## Versions + +A "version" is described by the `v2.0.0` specification found at +. + +A leading `"="` or `"v"` character is stripped off and ignored. + +## Ranges + +A `version range` is a set of `comparators` that specify versions +that satisfy the range. + +A `comparator` is composed of an `operator` and a `version`. The set +of primitive `operators` is: + +* `<` Less than +* `<=` Less than or equal to +* `>` Greater than +* `>=` Greater than or equal to +* `=` Equal. If no operator is specified, then equality is assumed, + so this operator is optional but MAY be included. + +For example, the comparator `>=1.2.7` would match the versions +`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6` +or `1.1.0`. The comparator `>1` is equivalent to `>=2.0.0` and +would match the versions `2.0.0` and `3.1.0`, but not the versions +`1.0.1` or `1.1.0`. + +Comparators can be joined by whitespace to form a `comparator set`, +which is satisfied by the **intersection** of all of the comparators +it includes. + +A range is composed of one or more comparator sets, joined by `||`. A +version matches a range if and only if every comparator in at least +one of the `||`-separated comparator sets is satisfied by the version. + +For example, the range `>=1.2.7 <1.3.0` would match the versions +`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`, +or `1.1.0`. + +The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`, +`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`. + +### Prerelease Tags + +If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then +it will only be allowed to satisfy comparator sets if at least one +comparator with the same `[major, minor, patch]` tuple also has a +prerelease tag. + +For example, the range `>1.2.3-alpha.3` would be allowed to match the +version `1.2.3-alpha.7`, but it would *not* be satisfied by +`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater +than" `1.2.3-alpha.3` according to the SemVer sort rules. The version +range only accepts prerelease tags on the `1.2.3` version. +Version `3.4.5` *would* satisfy the range because it does not have a +prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`. + +The purpose of this behavior is twofold. First, prerelease versions +frequently are updated very quickly, and contain many breaking changes +that are (by the author's design) not yet fit for public consumption. +Therefore, by default, they are excluded from range-matching +semantics. + +Second, a user who has opted into using a prerelease version has +indicated the intent to use *that specific* set of +alpha/beta/rc versions. By including a prerelease tag in the range, +the user is indicating that they are aware of the risk. However, it +is still not appropriate to assume that they have opted into taking a +similar risk on the *next* set of prerelease versions. + +Note that this behavior can be suppressed (treating all prerelease +versions as if they were normal versions, for range-matching) +by setting the `includePrerelease` flag on the options +object to any +[functions](https://github.com/npm/node-semver#functions) that do +range matching. + +#### Prerelease Identifiers + +The method `.inc` takes an additional `identifier` string argument that +will append the value of the string as a prerelease identifier: + +```javascript +semver.inc('1.2.3', 'prerelease', 'beta') +// '1.2.4-beta.0' +``` + +command-line example: + +```bash +$ semver 1.2.3 -i prerelease --preid beta +1.2.4-beta.0 +``` + +Which then can be used to increment further: + +```bash +$ semver 1.2.4-beta.0 -i prerelease +1.2.4-beta.1 +``` + +#### Prerelease Identifier Base + +The method `.inc` takes an optional parameter 'identifierBase' string +that will let you let your prerelease number as zero-based or one-based. +Set to `false` to omit the prerelease number altogether. +If you do not specify this parameter, it will default to zero-based. + +```javascript +semver.inc('1.2.3', 'prerelease', 'beta', '1') +// '1.2.4-beta.1' +``` + +```javascript +semver.inc('1.2.3', 'prerelease', 'beta', false) +// '1.2.4-beta' +``` + +command-line example: + +```bash +$ semver 1.2.3 -i prerelease --preid beta -n 1 +1.2.4-beta.1 +``` + +```bash +$ semver 1.2.3 -i prerelease --preid beta -n false +1.2.4-beta +``` + +### Advanced Range Syntax + +Advanced range syntax desugars to primitive comparators in +deterministic ways. + +Advanced ranges may be combined in the same way as primitive +comparators using white space or `||`. + +#### Hyphen Ranges `X.Y.Z - A.B.C` + +Specifies an inclusive set. + +* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4` + +If a partial version is provided as the first version in the inclusive +range, then the missing pieces are replaced with zeroes. + +* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4` + +If a partial version is provided as the second version in the +inclusive range, then all versions that start with the supplied parts +of the tuple are accepted, but nothing that would be greater than the +provided tuple parts. + +* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0-0` +* `1.2.3 - 2` := `>=1.2.3 <3.0.0-0` + +#### X-Ranges `1.2.x` `1.X` `1.2.*` `*` + +Any of `X`, `x`, or `*` may be used to "stand in" for one of the +numeric values in the `[major, minor, patch]` tuple. + +* `*` := `>=0.0.0` (Any non-prerelease version satisfies, unless + `includePrerelease` is specified, in which case any version at all + satisfies) +* `1.x` := `>=1.0.0 <2.0.0-0` (Matching major version) +* `1.2.x` := `>=1.2.0 <1.3.0-0` (Matching major and minor versions) + +A partial version range is treated as an X-Range, so the special +character is in fact optional. + +* `""` (empty string) := `*` := `>=0.0.0` +* `1` := `1.x.x` := `>=1.0.0 <2.0.0-0` +* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0-0` + +#### Tilde Ranges `~1.2.3` `~1.2` `~1` + +Allows patch-level changes if a minor version is specified on the +comparator. Allows minor-level changes if not. + +* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0-0` +* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0-0` (Same as `1.2.x`) +* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0-0` (Same as `1.x`) +* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0-0` +* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0-0` (Same as `0.2.x`) +* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0-0` (Same as `0.x`) +* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0-0` Note that prereleases in + the `1.2.3` version will be allowed, if they are greater than or + equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but + `1.2.4-beta.2` would not, because it is a prerelease of a + different `[major, minor, patch]` tuple. + +#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4` + +Allows changes that do not modify the left-most non-zero element in the +`[major, minor, patch]` tuple. In other words, this allows patch and +minor updates for versions `1.0.0` and above, patch updates for +versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`. + +Many authors treat a `0.x` version as if the `x` were the major +"breaking-change" indicator. + +Caret ranges are ideal when an author may make breaking changes +between `0.2.4` and `0.3.0` releases, which is a common practice. +However, it presumes that there will *not* be breaking changes between +`0.2.4` and `0.2.5`. It allows for changes that are presumed to be +additive (but non-breaking), according to commonly observed practices. + +* `^1.2.3` := `>=1.2.3 <2.0.0-0` +* `^0.2.3` := `>=0.2.3 <0.3.0-0` +* `^0.0.3` := `>=0.0.3 <0.0.4-0` +* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0-0` Note that prereleases in + the `1.2.3` version will be allowed, if they are greater than or + equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but + `1.2.4-beta.2` would not, because it is a prerelease of a + different `[major, minor, patch]` tuple. +* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4-0` Note that prereleases in the + `0.0.3` version *only* will be allowed, if they are greater than or + equal to `beta`. So, `0.0.3-pr.2` would be allowed. + +When parsing caret ranges, a missing `patch` value desugars to the +number `0`, but will allow flexibility within that value, even if the +major and minor versions are both `0`. + +* `^1.2.x` := `>=1.2.0 <2.0.0-0` +* `^0.0.x` := `>=0.0.0 <0.1.0-0` +* `^0.0` := `>=0.0.0 <0.1.0-0` + +A missing `minor` and `patch` values will desugar to zero, but also +allow flexibility within those values, even if the major version is +zero. + +* `^1.x` := `>=1.0.0 <2.0.0-0` +* `^0.x` := `>=0.0.0 <1.0.0-0` + +### Range Grammar + +Putting all this together, here is a Backus-Naur grammar for ranges, +for the benefit of parser authors: + +```bnf +range-set ::= range ( logical-or range ) * +logical-or ::= ( ' ' ) * '||' ( ' ' ) * +range ::= hyphen | simple ( ' ' simple ) * | '' +hyphen ::= partial ' - ' partial +simple ::= primitive | partial | tilde | caret +primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial +partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )? +xr ::= 'x' | 'X' | '*' | nr +nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) * +tilde ::= '~' partial +caret ::= '^' partial +qualifier ::= ( '-' pre )? ( '+' build )? +pre ::= parts +build ::= parts +parts ::= part ( '.' part ) * +part ::= nr | [-0-9A-Za-z]+ +``` + +## Functions + +All methods and classes take a final `options` object argument. All +options in this object are `false` by default. The options supported +are: + +- `loose`: Be more forgiving about not-quite-valid semver strings. + (Any resulting output will always be 100% strict compliant, of + course.) For backwards compatibility reasons, if the `options` + argument is a boolean value instead of an object, it is interpreted + to be the `loose` param. +- `includePrerelease`: Set to suppress the [default + behavior](https://github.com/npm/node-semver#prerelease-tags) of + excluding prerelease tagged versions from ranges unless they are + explicitly opted into. + +Strict-mode Comparators and Ranges will be strict about the SemVer +strings that they parse. + +* `valid(v)`: Return the parsed version, or null if it's not valid. +* `inc(v, release, options, identifier, identifierBase)`: + Return the version incremented by the release + type (`major`, `premajor`, `minor`, `preminor`, `patch`, + `prepatch`, or `prerelease`), or null if it's not valid + * `premajor` in one call will bump the version up to the next major + version and down to a prerelease of that major version. + `preminor`, and `prepatch` work the same way. + * If called from a non-prerelease version, `prerelease` will work the + same as `prepatch`. It increments the patch version and then makes a + prerelease. If the input version is already a prerelease it simply + increments it. + * `identifier` can be used to prefix `premajor`, `preminor`, + `prepatch`, or `prerelease` version increments. `identifierBase` + is the base to be used for the `prerelease` identifier. +* `prerelease(v)`: Returns an array of prerelease components, or null + if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]` +* `major(v)`: Return the major version number. +* `minor(v)`: Return the minor version number. +* `patch(v)`: Return the patch version number. +* `intersects(r1, r2, loose)`: Return true if the two supplied ranges + or comparators intersect. +* `parse(v)`: Attempt to parse a string as a semantic version, returning either + a `SemVer` object or `null`. + +### Comparison + +* `gt(v1, v2)`: `v1 > v2` +* `gte(v1, v2)`: `v1 >= v2` +* `lt(v1, v2)`: `v1 < v2` +* `lte(v1, v2)`: `v1 <= v2` +* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent, + even if they're not the same string. You already know how to + compare strings. +* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`. +* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call + the corresponding function above. `"==="` and `"!=="` do simple + string comparison, but are included for completeness. Throws if an + invalid comparison string is provided. +* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if + `v2` is greater. Sorts in ascending order if passed to `Array.sort()`. +* `rcompare(v1, v2)`: The reverse of `compare`. Sorts an array of versions + in descending order when passed to `Array.sort()`. +* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions + are equal. Sorts in ascending order if passed to `Array.sort()`. +* `compareLoose(v1, v2)`: Short for ``compare(v1, v2, { loose: true })`. +* `diff(v1, v2)`: Returns the difference between two versions by the release type + (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`), + or null if the versions are the same. + +### Sorting + +* `sort(versions)`: Returns a sorted array of versions based on the `compareBuild` + function. +* `rsort(versions)`: The reverse of `sort`. Returns an array of versions based on + the `compareBuild` function in descending order. + +### Comparators + +* `intersects(comparator)`: Return true if the comparators intersect + +### Ranges + +* `validRange(range)`: Return the valid range or null if it's not valid +* `satisfies(version, range)`: Return true if the version satisfies the + range. +* `maxSatisfying(versions, range)`: Return the highest version in the list + that satisfies the range, or `null` if none of them do. +* `minSatisfying(versions, range)`: Return the lowest version in the list + that satisfies the range, or `null` if none of them do. +* `minVersion(range)`: Return the lowest version that can match + the given range. +* `gtr(version, range)`: Return `true` if the version is greater than all the + versions possible in the range. +* `ltr(version, range)`: Return `true` if the version is less than all the + versions possible in the range. +* `outside(version, range, hilo)`: Return true if the version is outside + the bounds of the range in either the high or low direction. The + `hilo` argument must be either the string `'>'` or `'<'`. (This is + the function called by `gtr` and `ltr`.) +* `intersects(range)`: Return true if any of the range comparators intersect. +* `simplifyRange(versions, range)`: Return a "simplified" range that + matches the same items in the `versions` list as the range specified. Note + that it does *not* guarantee that it would match the same versions in all + cases, only for the set of versions provided. This is useful when + generating ranges by joining together multiple versions with `||` + programmatically, to provide the user with something a bit more + ergonomic. If the provided range is shorter in string-length than the + generated range, then that is returned. +* `subset(subRange, superRange)`: Return `true` if the `subRange` range is + entirely contained by the `superRange` range. + +Note that, since ranges may be non-contiguous, a version might not be +greater than a range, less than a range, *or* satisfy a range! For +example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9` +until `2.0.0`, so version `1.2.10` would not be greater than the +range (because `2.0.1` satisfies, which is higher), nor less than the +range (since `1.2.8` satisfies, which is lower), and it also does not +satisfy the range. + +If you want to know if a version satisfies or does not satisfy a +range, use the `satisfies(version, range)` function. + +### Coercion + +* `coerce(version, options)`: Coerces a string to semver if possible + +This aims to provide a very forgiving translation of a non-semver string to +semver. It looks for the first digit in a string and consumes all +remaining characters which satisfy at least a partial semver (e.g., `1`, +`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer +versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All +surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes +`3.4.0`). Only text which lacks digits will fail coercion (`version one` +is not valid). The maximum length for any semver component considered for +coercion is 16 characters; longer components will be ignored +(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any +semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value +components are invalid (`9999999999999999.4.7.4` is likely invalid). + +If the `options.rtl` flag is set, then `coerce` will return the right-most +coercible tuple that does not share an ending index with a longer coercible +tuple. For example, `1.2.3.4` will return `2.3.4` in rtl mode, not +`4.0.0`. `1.2.3/4` will return `4.0.0`, because the `4` is not a part of +any other overlapping SemVer tuple. + +If the `options.includePrerelease` flag is set, then the `coerce` result will contain +prerelease and build parts of a version. For example, `1.2.3.4-rc.1+rev.2` +will preserve prerelease `rc.1` and build `rev.2` in the result. + +### Clean + +* `clean(version)`: Clean a string to be a valid semver if possible + +This will return a cleaned and trimmed semver version. If the provided +version is not valid a null will be returned. This does not work for +ranges. + +ex. +* `s.clean(' = v 2.1.5foo')`: `null` +* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'` +* `s.clean(' = v 2.1.5-foo')`: `null` +* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'` +* `s.clean('=v2.1.5')`: `'2.1.5'` +* `s.clean(' =v2.1.5')`: `'2.1.5'` +* `s.clean(' 2.1.5 ')`: `'2.1.5'` +* `s.clean('~1.0.0')`: `null` + +## Constants + +As a convenience, helper constants are exported to provide information about what `node-semver` supports: + +### `RELEASE_TYPES` + +- major +- premajor +- minor +- preminor +- patch +- prepatch +- prerelease + +``` +const semver = require('semver'); + +if (semver.RELEASE_TYPES.includes(arbitraryUserInput)) { + console.log('This is a valid release type!'); +} else { + console.warn('This is NOT a valid release type!'); +} +``` + +### `SEMVER_SPEC_VERSION` + +2.0.0 + +``` +const semver = require('semver'); + +console.log('We are currently using the semver specification version:', semver.SEMVER_SPEC_VERSION); +``` + +## Exported Modules + + + +You may pull in just the part of this semver utility that you need if you +are sensitive to packing and tree-shaking concerns. The main +`require('semver')` export uses getter functions to lazily load the parts +of the API that are used. + +The following modules are available: + +* `require('semver')` +* `require('semver/classes')` +* `require('semver/classes/comparator')` +* `require('semver/classes/range')` +* `require('semver/classes/semver')` +* `require('semver/functions/clean')` +* `require('semver/functions/cmp')` +* `require('semver/functions/coerce')` +* `require('semver/functions/compare')` +* `require('semver/functions/compare-build')` +* `require('semver/functions/compare-loose')` +* `require('semver/functions/diff')` +* `require('semver/functions/eq')` +* `require('semver/functions/gt')` +* `require('semver/functions/gte')` +* `require('semver/functions/inc')` +* `require('semver/functions/lt')` +* `require('semver/functions/lte')` +* `require('semver/functions/major')` +* `require('semver/functions/minor')` +* `require('semver/functions/neq')` +* `require('semver/functions/parse')` +* `require('semver/functions/patch')` +* `require('semver/functions/prerelease')` +* `require('semver/functions/rcompare')` +* `require('semver/functions/rsort')` +* `require('semver/functions/satisfies')` +* `require('semver/functions/sort')` +* `require('semver/functions/valid')` +* `require('semver/ranges/gtr')` +* `require('semver/ranges/intersects')` +* `require('semver/ranges/ltr')` +* `require('semver/ranges/max-satisfying')` +* `require('semver/ranges/min-satisfying')` +* `require('semver/ranges/min-version')` +* `require('semver/ranges/outside')` +* `require('semver/ranges/simplify')` +* `require('semver/ranges/subset')` +* `require('semver/ranges/to-comparators')` +* `require('semver/ranges/valid')` + diff --git a/week-3/04-course-app-hard/node_modules/semver/bin/semver.js b/week-3/04-course-app-hard/node_modules/semver/bin/semver.js new file mode 100644 index 000000000..f62b566f7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/bin/semver.js @@ -0,0 +1,188 @@ +#!/usr/bin/env node +// Standalone semver comparison program. +// Exits successfully and prints matching version(s) if +// any supplied version is valid and passes all tests. + +const argv = process.argv.slice(2) + +let versions = [] + +const range = [] + +let inc = null + +const version = require('../package.json').version + +let loose = false + +let includePrerelease = false + +let coerce = false + +let rtl = false + +let identifier + +let identifierBase + +const semver = require('../') +const parseOptions = require('../internal/parse-options') + +let reverse = false + +let options = {} + +const main = () => { + if (!argv.length) { + return help() + } + while (argv.length) { + let a = argv.shift() + const indexOfEqualSign = a.indexOf('=') + if (indexOfEqualSign !== -1) { + const value = a.slice(indexOfEqualSign + 1) + a = a.slice(0, indexOfEqualSign) + argv.unshift(value) + } + switch (a) { + case '-rv': case '-rev': case '--rev': case '--reverse': + reverse = true + break + case '-l': case '--loose': + loose = true + break + case '-p': case '--include-prerelease': + includePrerelease = true + break + case '-v': case '--version': + versions.push(argv.shift()) + break + case '-i': case '--inc': case '--increment': + switch (argv[0]) { + case 'major': case 'minor': case 'patch': case 'prerelease': + case 'premajor': case 'preminor': case 'prepatch': + inc = argv.shift() + break + default: + inc = 'patch' + break + } + break + case '--preid': + identifier = argv.shift() + break + case '-r': case '--range': + range.push(argv.shift()) + break + case '-n': + identifierBase = argv.shift() + if (identifierBase === 'false') { + identifierBase = false + } + break + case '-c': case '--coerce': + coerce = true + break + case '--rtl': + rtl = true + break + case '--ltr': + rtl = false + break + case '-h': case '--help': case '-?': + return help() + default: + versions.push(a) + break + } + } + + options = parseOptions({ loose, includePrerelease, rtl }) + + versions = versions.map((v) => { + return coerce ? (semver.coerce(v, options) || { version: v }).version : v + }).filter((v) => { + return semver.valid(v) + }) + if (!versions.length) { + return fail() + } + if (inc && (versions.length !== 1 || range.length)) { + return failInc() + } + + for (let i = 0, l = range.length; i < l; i++) { + versions = versions.filter((v) => { + return semver.satisfies(v, range[i], options) + }) + if (!versions.length) { + return fail() + } + } + versions + .sort((a, b) => semver[reverse ? 'rcompare' : 'compare'](a, b, options)) + .map(v => semver.clean(v, options)) + .map(v => inc ? semver.inc(v, inc, options, identifier, identifierBase) : v) + .forEach(v => console.log(v)) +} + +const failInc = () => { + console.error('--inc can only be used on a single version with no range') + fail() +} + +const fail = () => process.exit(1) + +const help = () => console.log( +`SemVer ${version} + +A JavaScript implementation of the https://semver.org/ specification +Copyright Isaac Z. Schlueter + +Usage: semver [options] [ [...]] +Prints valid versions sorted by SemVer precedence + +Options: +-r --range + Print versions that match the specified range. + +-i --increment [] + Increment a version by the specified level. Level can + be one of: major, minor, patch, premajor, preminor, + prepatch, or prerelease. Default level is 'patch'. + Only one version may be specified. + +--preid + Identifier to be used to prefix premajor, preminor, + prepatch or prerelease version increments. + +-l --loose + Interpret versions and ranges loosely + +-p --include-prerelease + Always include prerelease versions in range matching + +-c --coerce + Coerce a string into SemVer if possible + (does not imply --loose) + +--rtl + Coerce version strings right to left + +--ltr + Coerce version strings left to right (default) + +-n + Base number to be used for the prerelease identifier. + Can be either 0 or 1, or false to omit the number altogether. + Defaults to 0. + +Program exits successfully if any valid version satisfies +all supplied ranges, and prints all satisfying versions. + +If no satisfying versions are found, then exits failure. + +Versions are printed in ascending order, so supplying +multiple versions to the utility will just sort them.`) + +main() diff --git a/week-3/04-course-app-hard/node_modules/semver/classes/comparator.js b/week-3/04-course-app-hard/node_modules/semver/classes/comparator.js new file mode 100644 index 000000000..3d39c0eef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/classes/comparator.js @@ -0,0 +1,141 @@ +const ANY = Symbol('SemVer ANY') +// hoisted class for cyclic dependency +class Comparator { + static get ANY () { + return ANY + } + + constructor (comp, options) { + options = parseOptions(options) + + if (comp instanceof Comparator) { + if (comp.loose === !!options.loose) { + return comp + } else { + comp = comp.value + } + } + + comp = comp.trim().split(/\s+/).join(' ') + debug('comparator', comp, options) + this.options = options + this.loose = !!options.loose + this.parse(comp) + + if (this.semver === ANY) { + this.value = '' + } else { + this.value = this.operator + this.semver.version + } + + debug('comp', this) + } + + parse (comp) { + const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR] + const m = comp.match(r) + + if (!m) { + throw new TypeError(`Invalid comparator: ${comp}`) + } + + this.operator = m[1] !== undefined ? m[1] : '' + if (this.operator === '=') { + this.operator = '' + } + + // if it literally is just '>' or '' then allow anything. + if (!m[2]) { + this.semver = ANY + } else { + this.semver = new SemVer(m[2], this.options.loose) + } + } + + toString () { + return this.value + } + + test (version) { + debug('Comparator.test', version, this.options.loose) + + if (this.semver === ANY || version === ANY) { + return true + } + + if (typeof version === 'string') { + try { + version = new SemVer(version, this.options) + } catch (er) { + return false + } + } + + return cmp(version, this.operator, this.semver, this.options) + } + + intersects (comp, options) { + if (!(comp instanceof Comparator)) { + throw new TypeError('a Comparator is required') + } + + if (this.operator === '') { + if (this.value === '') { + return true + } + return new Range(comp.value, options).test(this.value) + } else if (comp.operator === '') { + if (comp.value === '') { + return true + } + return new Range(this.value, options).test(comp.semver) + } + + options = parseOptions(options) + + // Special cases where nothing can possibly be lower + if (options.includePrerelease && + (this.value === '<0.0.0-0' || comp.value === '<0.0.0-0')) { + return false + } + if (!options.includePrerelease && + (this.value.startsWith('<0.0.0') || comp.value.startsWith('<0.0.0'))) { + return false + } + + // Same direction increasing (> or >=) + if (this.operator.startsWith('>') && comp.operator.startsWith('>')) { + return true + } + // Same direction decreasing (< or <=) + if (this.operator.startsWith('<') && comp.operator.startsWith('<')) { + return true + } + // same SemVer and both sides are inclusive (<= or >=) + if ( + (this.semver.version === comp.semver.version) && + this.operator.includes('=') && comp.operator.includes('=')) { + return true + } + // opposite directions less than + if (cmp(this.semver, '<', comp.semver, options) && + this.operator.startsWith('>') && comp.operator.startsWith('<')) { + return true + } + // opposite directions greater than + if (cmp(this.semver, '>', comp.semver, options) && + this.operator.startsWith('<') && comp.operator.startsWith('>')) { + return true + } + return false + } +} + +module.exports = Comparator + +const parseOptions = require('../internal/parse-options') +const { safeRe: re, t } = require('../internal/re') +const cmp = require('../functions/cmp') +const debug = require('../internal/debug') +const SemVer = require('./semver') +const Range = require('./range') diff --git a/week-3/04-course-app-hard/node_modules/semver/classes/index.js b/week-3/04-course-app-hard/node_modules/semver/classes/index.js new file mode 100644 index 000000000..5e3f5c9b1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/classes/index.js @@ -0,0 +1,5 @@ +module.exports = { + SemVer: require('./semver.js'), + Range: require('./range.js'), + Comparator: require('./comparator.js'), +} diff --git a/week-3/04-course-app-hard/node_modules/semver/classes/range.js b/week-3/04-course-app-hard/node_modules/semver/classes/range.js new file mode 100644 index 000000000..117b45a2b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/classes/range.js @@ -0,0 +1,540 @@ +// hoisted class for cyclic dependency +class Range { + constructor (range, options) { + options = parseOptions(options) + + if (range instanceof Range) { + if ( + range.loose === !!options.loose && + range.includePrerelease === !!options.includePrerelease + ) { + return range + } else { + return new Range(range.raw, options) + } + } + + if (range instanceof Comparator) { + // just put it in the set and return + this.raw = range.value + this.set = [[range]] + this.format() + return this + } + + this.options = options + this.loose = !!options.loose + this.includePrerelease = !!options.includePrerelease + + // First reduce all whitespace as much as possible so we do not have to rely + // on potentially slow regexes like \s*. This is then stored and used for + // future error messages as well. + this.raw = range + .trim() + .split(/\s+/) + .join(' ') + + // First, split on || + this.set = this.raw + .split('||') + // map the range to a 2d array of comparators + .map(r => this.parseRange(r.trim())) + // throw out any comparator lists that are empty + // this generally means that it was not a valid range, which is allowed + // in loose mode, but will still throw if the WHOLE range is invalid. + .filter(c => c.length) + + if (!this.set.length) { + throw new TypeError(`Invalid SemVer Range: ${this.raw}`) + } + + // if we have any that are not the null set, throw out null sets. + if (this.set.length > 1) { + // keep the first one, in case they're all null sets + const first = this.set[0] + this.set = this.set.filter(c => !isNullSet(c[0])) + if (this.set.length === 0) { + this.set = [first] + } else if (this.set.length > 1) { + // if we have any that are *, then the range is just * + for (const c of this.set) { + if (c.length === 1 && isAny(c[0])) { + this.set = [c] + break + } + } + } + } + + this.format() + } + + format () { + this.range = this.set + .map((comps) => comps.join(' ').trim()) + .join('||') + .trim() + return this.range + } + + toString () { + return this.range + } + + parseRange (range) { + // memoize range parsing for performance. + // this is a very hot path, and fully deterministic. + const memoOpts = + (this.options.includePrerelease && FLAG_INCLUDE_PRERELEASE) | + (this.options.loose && FLAG_LOOSE) + const memoKey = memoOpts + ':' + range + const cached = cache.get(memoKey) + if (cached) { + return cached + } + + const loose = this.options.loose + // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4` + const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE] + range = range.replace(hr, hyphenReplace(this.options.includePrerelease)) + debug('hyphen replace', range) + + // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5` + range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace) + debug('comparator trim', range) + + // `~ 1.2.3` => `~1.2.3` + range = range.replace(re[t.TILDETRIM], tildeTrimReplace) + debug('tilde trim', range) + + // `^ 1.2.3` => `^1.2.3` + range = range.replace(re[t.CARETTRIM], caretTrimReplace) + debug('caret trim', range) + + // At this point, the range is completely trimmed and + // ready to be split into comparators. + + let rangeList = range + .split(' ') + .map(comp => parseComparator(comp, this.options)) + .join(' ') + .split(/\s+/) + // >=0.0.0 is equivalent to * + .map(comp => replaceGTE0(comp, this.options)) + + if (loose) { + // in loose mode, throw out any that are not valid comparators + rangeList = rangeList.filter(comp => { + debug('loose invalid filter', comp, this.options) + return !!comp.match(re[t.COMPARATORLOOSE]) + }) + } + debug('range list', rangeList) + + // if any comparators are the null set, then replace with JUST null set + // if more than one comparator, remove any * comparators + // also, don't include the same comparator more than once + const rangeMap = new Map() + const comparators = rangeList.map(comp => new Comparator(comp, this.options)) + for (const comp of comparators) { + if (isNullSet(comp)) { + return [comp] + } + rangeMap.set(comp.value, comp) + } + if (rangeMap.size > 1 && rangeMap.has('')) { + rangeMap.delete('') + } + + const result = [...rangeMap.values()] + cache.set(memoKey, result) + return result + } + + intersects (range, options) { + if (!(range instanceof Range)) { + throw new TypeError('a Range is required') + } + + return this.set.some((thisComparators) => { + return ( + isSatisfiable(thisComparators, options) && + range.set.some((rangeComparators) => { + return ( + isSatisfiable(rangeComparators, options) && + thisComparators.every((thisComparator) => { + return rangeComparators.every((rangeComparator) => { + return thisComparator.intersects(rangeComparator, options) + }) + }) + ) + }) + ) + }) + } + + // if ANY of the sets match ALL of its comparators, then pass + test (version) { + if (!version) { + return false + } + + if (typeof version === 'string') { + try { + version = new SemVer(version, this.options) + } catch (er) { + return false + } + } + + for (let i = 0; i < this.set.length; i++) { + if (testSet(this.set[i], version, this.options)) { + return true + } + } + return false + } +} + +module.exports = Range + +const LRU = require('../internal/lrucache') +const cache = new LRU() + +const parseOptions = require('../internal/parse-options') +const Comparator = require('./comparator') +const debug = require('../internal/debug') +const SemVer = require('./semver') +const { + safeRe: re, + t, + comparatorTrimReplace, + tildeTrimReplace, + caretTrimReplace, +} = require('../internal/re') +const { FLAG_INCLUDE_PRERELEASE, FLAG_LOOSE } = require('../internal/constants') + +const isNullSet = c => c.value === '<0.0.0-0' +const isAny = c => c.value === '' + +// take a set of comparators and determine whether there +// exists a version which can satisfy it +const isSatisfiable = (comparators, options) => { + let result = true + const remainingComparators = comparators.slice() + let testComparator = remainingComparators.pop() + + while (result && remainingComparators.length) { + result = remainingComparators.every((otherComparator) => { + return testComparator.intersects(otherComparator, options) + }) + + testComparator = remainingComparators.pop() + } + + return result +} + +// comprised of xranges, tildes, stars, and gtlt's at this point. +// already replaced the hyphen ranges +// turn into a set of JUST comparators. +const parseComparator = (comp, options) => { + debug('comp', comp, options) + comp = replaceCarets(comp, options) + debug('caret', comp) + comp = replaceTildes(comp, options) + debug('tildes', comp) + comp = replaceXRanges(comp, options) + debug('xrange', comp) + comp = replaceStars(comp, options) + debug('stars', comp) + return comp +} + +const isX = id => !id || id.toLowerCase() === 'x' || id === '*' + +// ~, ~> --> * (any, kinda silly) +// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0 +// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0 +// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0 +// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0 +// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0 +// ~0.0.1 --> >=0.0.1 <0.1.0-0 +const replaceTildes = (comp, options) => { + return comp + .trim() + .split(/\s+/) + .map((c) => replaceTilde(c, options)) + .join(' ') +} + +const replaceTilde = (comp, options) => { + const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE] + return comp.replace(r, (_, M, m, p, pr) => { + debug('tilde', comp, _, M, m, p, pr) + let ret + + if (isX(M)) { + ret = '' + } else if (isX(m)) { + ret = `>=${M}.0.0 <${+M + 1}.0.0-0` + } else if (isX(p)) { + // ~1.2 == >=1.2.0 <1.3.0-0 + ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0` + } else if (pr) { + debug('replaceTilde pr', pr) + ret = `>=${M}.${m}.${p}-${pr + } <${M}.${+m + 1}.0-0` + } else { + // ~1.2.3 == >=1.2.3 <1.3.0-0 + ret = `>=${M}.${m}.${p + } <${M}.${+m + 1}.0-0` + } + + debug('tilde return', ret) + return ret + }) +} + +// ^ --> * (any, kinda silly) +// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0 +// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0 +// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0 +// ^1.2.3 --> >=1.2.3 <2.0.0-0 +// ^1.2.0 --> >=1.2.0 <2.0.0-0 +// ^0.0.1 --> >=0.0.1 <0.0.2-0 +// ^0.1.0 --> >=0.1.0 <0.2.0-0 +const replaceCarets = (comp, options) => { + return comp + .trim() + .split(/\s+/) + .map((c) => replaceCaret(c, options)) + .join(' ') +} + +const replaceCaret = (comp, options) => { + debug('caret', comp, options) + const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET] + const z = options.includePrerelease ? '-0' : '' + return comp.replace(r, (_, M, m, p, pr) => { + debug('caret', comp, _, M, m, p, pr) + let ret + + if (isX(M)) { + ret = '' + } else if (isX(m)) { + ret = `>=${M}.0.0${z} <${+M + 1}.0.0-0` + } else if (isX(p)) { + if (M === '0') { + ret = `>=${M}.${m}.0${z} <${M}.${+m + 1}.0-0` + } else { + ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0` + } + } else if (pr) { + debug('replaceCaret pr', pr) + if (M === '0') { + if (m === '0') { + ret = `>=${M}.${m}.${p}-${pr + } <${M}.${m}.${+p + 1}-0` + } else { + ret = `>=${M}.${m}.${p}-${pr + } <${M}.${+m + 1}.0-0` + } + } else { + ret = `>=${M}.${m}.${p}-${pr + } <${+M + 1}.0.0-0` + } + } else { + debug('no pr') + if (M === '0') { + if (m === '0') { + ret = `>=${M}.${m}.${p + }${z} <${M}.${m}.${+p + 1}-0` + } else { + ret = `>=${M}.${m}.${p + }${z} <${M}.${+m + 1}.0-0` + } + } else { + ret = `>=${M}.${m}.${p + } <${+M + 1}.0.0-0` + } + } + + debug('caret return', ret) + return ret + }) +} + +const replaceXRanges = (comp, options) => { + debug('replaceXRanges', comp, options) + return comp + .split(/\s+/) + .map((c) => replaceXRange(c, options)) + .join(' ') +} + +const replaceXRange = (comp, options) => { + comp = comp.trim() + const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE] + return comp.replace(r, (ret, gtlt, M, m, p, pr) => { + debug('xRange', comp, ret, gtlt, M, m, p, pr) + const xM = isX(M) + const xm = xM || isX(m) + const xp = xm || isX(p) + const anyX = xp + + if (gtlt === '=' && anyX) { + gtlt = '' + } + + // if we're including prereleases in the match, then we need + // to fix this to -0, the lowest possible prerelease value + pr = options.includePrerelease ? '-0' : '' + + if (xM) { + if (gtlt === '>' || gtlt === '<') { + // nothing is allowed + ret = '<0.0.0-0' + } else { + // nothing is forbidden + ret = '*' + } + } else if (gtlt && anyX) { + // we know patch is an x, because we have any x at all. + // replace X with 0 + if (xm) { + m = 0 + } + p = 0 + + if (gtlt === '>') { + // >1 => >=2.0.0 + // >1.2 => >=1.3.0 + gtlt = '>=' + if (xm) { + M = +M + 1 + m = 0 + p = 0 + } else { + m = +m + 1 + p = 0 + } + } else if (gtlt === '<=') { + // <=0.7.x is actually <0.8.0, since any 0.7.x should + // pass. Similarly, <=7.x is actually <8.0.0, etc. + gtlt = '<' + if (xm) { + M = +M + 1 + } else { + m = +m + 1 + } + } + + if (gtlt === '<') { + pr = '-0' + } + + ret = `${gtlt + M}.${m}.${p}${pr}` + } else if (xm) { + ret = `>=${M}.0.0${pr} <${+M + 1}.0.0-0` + } else if (xp) { + ret = `>=${M}.${m}.0${pr + } <${M}.${+m + 1}.0-0` + } + + debug('xRange return', ret) + + return ret + }) +} + +// Because * is AND-ed with everything else in the comparator, +// and '' means "any version", just remove the *s entirely. +const replaceStars = (comp, options) => { + debug('replaceStars', comp, options) + // Looseness is ignored here. star is always as loose as it gets! + return comp + .trim() + .replace(re[t.STAR], '') +} + +const replaceGTE0 = (comp, options) => { + debug('replaceGTE0', comp, options) + return comp + .trim() + .replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '') +} + +// This function is passed to string.replace(re[t.HYPHENRANGE]) +// M, m, patch, prerelease, build +// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5 +// 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do +// 1.2 - 3.4 => >=1.2.0 <3.5.0-0 +// TODO build? +const hyphenReplace = incPr => ($0, + from, fM, fm, fp, fpr, fb, + to, tM, tm, tp, tpr) => { + if (isX(fM)) { + from = '' + } else if (isX(fm)) { + from = `>=${fM}.0.0${incPr ? '-0' : ''}` + } else if (isX(fp)) { + from = `>=${fM}.${fm}.0${incPr ? '-0' : ''}` + } else if (fpr) { + from = `>=${from}` + } else { + from = `>=${from}${incPr ? '-0' : ''}` + } + + if (isX(tM)) { + to = '' + } else if (isX(tm)) { + to = `<${+tM + 1}.0.0-0` + } else if (isX(tp)) { + to = `<${tM}.${+tm + 1}.0-0` + } else if (tpr) { + to = `<=${tM}.${tm}.${tp}-${tpr}` + } else if (incPr) { + to = `<${tM}.${tm}.${+tp + 1}-0` + } else { + to = `<=${to}` + } + + return `${from} ${to}`.trim() +} + +const testSet = (set, version, options) => { + for (let i = 0; i < set.length; i++) { + if (!set[i].test(version)) { + return false + } + } + + if (version.prerelease.length && !options.includePrerelease) { + // Find the set of versions that are allowed to have prereleases + // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0 + // That should allow `1.2.3-pr.2` to pass. + // However, `1.2.4-alpha.notready` should NOT be allowed, + // even though it's within the range set by the comparators. + for (let i = 0; i < set.length; i++) { + debug(set[i].semver) + if (set[i].semver === Comparator.ANY) { + continue + } + + if (set[i].semver.prerelease.length > 0) { + const allowed = set[i].semver + if (allowed.major === version.major && + allowed.minor === version.minor && + allowed.patch === version.patch) { + return true + } + } + } + + // Version has a -pre, but it's not one of the ones we like. + return false + } + + return true +} diff --git a/week-3/04-course-app-hard/node_modules/semver/classes/semver.js b/week-3/04-course-app-hard/node_modules/semver/classes/semver.js new file mode 100644 index 000000000..13e66ce44 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/classes/semver.js @@ -0,0 +1,302 @@ +const debug = require('../internal/debug') +const { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants') +const { safeRe: re, t } = require('../internal/re') + +const parseOptions = require('../internal/parse-options') +const { compareIdentifiers } = require('../internal/identifiers') +class SemVer { + constructor (version, options) { + options = parseOptions(options) + + if (version instanceof SemVer) { + if (version.loose === !!options.loose && + version.includePrerelease === !!options.includePrerelease) { + return version + } else { + version = version.version + } + } else if (typeof version !== 'string') { + throw new TypeError(`Invalid version. Must be a string. Got type "${typeof version}".`) + } + + if (version.length > MAX_LENGTH) { + throw new TypeError( + `version is longer than ${MAX_LENGTH} characters` + ) + } + + debug('SemVer', version, options) + this.options = options + this.loose = !!options.loose + // this isn't actually relevant for versions, but keep it so that we + // don't run into trouble passing this.options around. + this.includePrerelease = !!options.includePrerelease + + const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL]) + + if (!m) { + throw new TypeError(`Invalid Version: ${version}`) + } + + this.raw = version + + // these are actually numbers + this.major = +m[1] + this.minor = +m[2] + this.patch = +m[3] + + if (this.major > MAX_SAFE_INTEGER || this.major < 0) { + throw new TypeError('Invalid major version') + } + + if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) { + throw new TypeError('Invalid minor version') + } + + if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) { + throw new TypeError('Invalid patch version') + } + + // numberify any prerelease numeric ids + if (!m[4]) { + this.prerelease = [] + } else { + this.prerelease = m[4].split('.').map((id) => { + if (/^[0-9]+$/.test(id)) { + const num = +id + if (num >= 0 && num < MAX_SAFE_INTEGER) { + return num + } + } + return id + }) + } + + this.build = m[5] ? m[5].split('.') : [] + this.format() + } + + format () { + this.version = `${this.major}.${this.minor}.${this.patch}` + if (this.prerelease.length) { + this.version += `-${this.prerelease.join('.')}` + } + return this.version + } + + toString () { + return this.version + } + + compare (other) { + debug('SemVer.compare', this.version, this.options, other) + if (!(other instanceof SemVer)) { + if (typeof other === 'string' && other === this.version) { + return 0 + } + other = new SemVer(other, this.options) + } + + if (other.version === this.version) { + return 0 + } + + return this.compareMain(other) || this.comparePre(other) + } + + compareMain (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + return ( + compareIdentifiers(this.major, other.major) || + compareIdentifiers(this.minor, other.minor) || + compareIdentifiers(this.patch, other.patch) + ) + } + + comparePre (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + // NOT having a prerelease is > having one + if (this.prerelease.length && !other.prerelease.length) { + return -1 + } else if (!this.prerelease.length && other.prerelease.length) { + return 1 + } else if (!this.prerelease.length && !other.prerelease.length) { + return 0 + } + + let i = 0 + do { + const a = this.prerelease[i] + const b = other.prerelease[i] + debug('prerelease compare', i, a, b) + if (a === undefined && b === undefined) { + return 0 + } else if (b === undefined) { + return 1 + } else if (a === undefined) { + return -1 + } else if (a === b) { + continue + } else { + return compareIdentifiers(a, b) + } + } while (++i) + } + + compareBuild (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + let i = 0 + do { + const a = this.build[i] + const b = other.build[i] + debug('build compare', i, a, b) + if (a === undefined && b === undefined) { + return 0 + } else if (b === undefined) { + return 1 + } else if (a === undefined) { + return -1 + } else if (a === b) { + continue + } else { + return compareIdentifiers(a, b) + } + } while (++i) + } + + // preminor will bump the version up to the next minor release, and immediately + // down to pre-release. premajor and prepatch work the same way. + inc (release, identifier, identifierBase) { + switch (release) { + case 'premajor': + this.prerelease.length = 0 + this.patch = 0 + this.minor = 0 + this.major++ + this.inc('pre', identifier, identifierBase) + break + case 'preminor': + this.prerelease.length = 0 + this.patch = 0 + this.minor++ + this.inc('pre', identifier, identifierBase) + break + case 'prepatch': + // If this is already a prerelease, it will bump to the next version + // drop any prereleases that might already exist, since they are not + // relevant at this point. + this.prerelease.length = 0 + this.inc('patch', identifier, identifierBase) + this.inc('pre', identifier, identifierBase) + break + // If the input is a non-prerelease version, this acts the same as + // prepatch. + case 'prerelease': + if (this.prerelease.length === 0) { + this.inc('patch', identifier, identifierBase) + } + this.inc('pre', identifier, identifierBase) + break + + case 'major': + // If this is a pre-major version, bump up to the same major version. + // Otherwise increment major. + // 1.0.0-5 bumps to 1.0.0 + // 1.1.0 bumps to 2.0.0 + if ( + this.minor !== 0 || + this.patch !== 0 || + this.prerelease.length === 0 + ) { + this.major++ + } + this.minor = 0 + this.patch = 0 + this.prerelease = [] + break + case 'minor': + // If this is a pre-minor version, bump up to the same minor version. + // Otherwise increment minor. + // 1.2.0-5 bumps to 1.2.0 + // 1.2.1 bumps to 1.3.0 + if (this.patch !== 0 || this.prerelease.length === 0) { + this.minor++ + } + this.patch = 0 + this.prerelease = [] + break + case 'patch': + // If this is not a pre-release version, it will increment the patch. + // If it is a pre-release it will bump up to the same patch version. + // 1.2.0-5 patches to 1.2.0 + // 1.2.0 patches to 1.2.1 + if (this.prerelease.length === 0) { + this.patch++ + } + this.prerelease = [] + break + // This probably shouldn't be used publicly. + // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction. + case 'pre': { + const base = Number(identifierBase) ? 1 : 0 + + if (!identifier && identifierBase === false) { + throw new Error('invalid increment argument: identifier is empty') + } + + if (this.prerelease.length === 0) { + this.prerelease = [base] + } else { + let i = this.prerelease.length + while (--i >= 0) { + if (typeof this.prerelease[i] === 'number') { + this.prerelease[i]++ + i = -2 + } + } + if (i === -1) { + // didn't increment anything + if (identifier === this.prerelease.join('.') && identifierBase === false) { + throw new Error('invalid increment argument: identifier already exists') + } + this.prerelease.push(base) + } + } + if (identifier) { + // 1.2.0-beta.1 bumps to 1.2.0-beta.2, + // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0 + let prerelease = [identifier, base] + if (identifierBase === false) { + prerelease = [identifier] + } + if (compareIdentifiers(this.prerelease[0], identifier) === 0) { + if (isNaN(this.prerelease[1])) { + this.prerelease = prerelease + } + } else { + this.prerelease = prerelease + } + } + break + } + default: + throw new Error(`invalid increment argument: ${release}`) + } + this.raw = this.format() + if (this.build.length) { + this.raw += `+${this.build.join('.')}` + } + return this + } +} + +module.exports = SemVer diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/clean.js b/week-3/04-course-app-hard/node_modules/semver/functions/clean.js new file mode 100644 index 000000000..811fe6b82 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/clean.js @@ -0,0 +1,6 @@ +const parse = require('./parse') +const clean = (version, options) => { + const s = parse(version.trim().replace(/^[=v]+/, ''), options) + return s ? s.version : null +} +module.exports = clean diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/cmp.js b/week-3/04-course-app-hard/node_modules/semver/functions/cmp.js new file mode 100644 index 000000000..401190947 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/cmp.js @@ -0,0 +1,52 @@ +const eq = require('./eq') +const neq = require('./neq') +const gt = require('./gt') +const gte = require('./gte') +const lt = require('./lt') +const lte = require('./lte') + +const cmp = (a, op, b, loose) => { + switch (op) { + case '===': + if (typeof a === 'object') { + a = a.version + } + if (typeof b === 'object') { + b = b.version + } + return a === b + + case '!==': + if (typeof a === 'object') { + a = a.version + } + if (typeof b === 'object') { + b = b.version + } + return a !== b + + case '': + case '=': + case '==': + return eq(a, b, loose) + + case '!=': + return neq(a, b, loose) + + case '>': + return gt(a, b, loose) + + case '>=': + return gte(a, b, loose) + + case '<': + return lt(a, b, loose) + + case '<=': + return lte(a, b, loose) + + default: + throw new TypeError(`Invalid operator: ${op}`) + } +} +module.exports = cmp diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/coerce.js b/week-3/04-course-app-hard/node_modules/semver/functions/coerce.js new file mode 100644 index 000000000..b378dcea4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/coerce.js @@ -0,0 +1,60 @@ +const SemVer = require('../classes/semver') +const parse = require('./parse') +const { safeRe: re, t } = require('../internal/re') + +const coerce = (version, options) => { + if (version instanceof SemVer) { + return version + } + + if (typeof version === 'number') { + version = String(version) + } + + if (typeof version !== 'string') { + return null + } + + options = options || {} + + let match = null + if (!options.rtl) { + match = version.match(options.includePrerelease ? re[t.COERCEFULL] : re[t.COERCE]) + } else { + // Find the right-most coercible string that does not share + // a terminus with a more left-ward coercible string. + // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4' + // With includePrerelease option set, '1.2.3.4-rc' wants to coerce '2.3.4-rc', not '2.3.4' + // + // Walk through the string checking with a /g regexp + // Manually set the index so as to pick up overlapping matches. + // Stop when we get a match that ends at the string end, since no + // coercible string can be more right-ward without the same terminus. + const coerceRtlRegex = options.includePrerelease ? re[t.COERCERTLFULL] : re[t.COERCERTL] + let next + while ((next = coerceRtlRegex.exec(version)) && + (!match || match.index + match[0].length !== version.length) + ) { + if (!match || + next.index + next[0].length !== match.index + match[0].length) { + match = next + } + coerceRtlRegex.lastIndex = next.index + next[1].length + next[2].length + } + // leave it in a clean state + coerceRtlRegex.lastIndex = -1 + } + + if (match === null) { + return null + } + + const major = match[2] + const minor = match[3] || '0' + const patch = match[4] || '0' + const prerelease = options.includePrerelease && match[5] ? `-${match[5]}` : '' + const build = options.includePrerelease && match[6] ? `+${match[6]}` : '' + + return parse(`${major}.${minor}.${patch}${prerelease}${build}`, options) +} +module.exports = coerce diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/compare-build.js b/week-3/04-course-app-hard/node_modules/semver/functions/compare-build.js new file mode 100644 index 000000000..9eb881bef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/compare-build.js @@ -0,0 +1,7 @@ +const SemVer = require('../classes/semver') +const compareBuild = (a, b, loose) => { + const versionA = new SemVer(a, loose) + const versionB = new SemVer(b, loose) + return versionA.compare(versionB) || versionA.compareBuild(versionB) +} +module.exports = compareBuild diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/compare-loose.js b/week-3/04-course-app-hard/node_modules/semver/functions/compare-loose.js new file mode 100644 index 000000000..4881fbe00 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/compare-loose.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const compareLoose = (a, b) => compare(a, b, true) +module.exports = compareLoose diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/compare.js b/week-3/04-course-app-hard/node_modules/semver/functions/compare.js new file mode 100644 index 000000000..748b7afa5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/compare.js @@ -0,0 +1,5 @@ +const SemVer = require('../classes/semver') +const compare = (a, b, loose) => + new SemVer(a, loose).compare(new SemVer(b, loose)) + +module.exports = compare diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/diff.js b/week-3/04-course-app-hard/node_modules/semver/functions/diff.js new file mode 100644 index 000000000..fc224e302 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/diff.js @@ -0,0 +1,65 @@ +const parse = require('./parse.js') + +const diff = (version1, version2) => { + const v1 = parse(version1, null, true) + const v2 = parse(version2, null, true) + const comparison = v1.compare(v2) + + if (comparison === 0) { + return null + } + + const v1Higher = comparison > 0 + const highVersion = v1Higher ? v1 : v2 + const lowVersion = v1Higher ? v2 : v1 + const highHasPre = !!highVersion.prerelease.length + const lowHasPre = !!lowVersion.prerelease.length + + if (lowHasPre && !highHasPre) { + // Going from prerelease -> no prerelease requires some special casing + + // If the low version has only a major, then it will always be a major + // Some examples: + // 1.0.0-1 -> 1.0.0 + // 1.0.0-1 -> 1.1.1 + // 1.0.0-1 -> 2.0.0 + if (!lowVersion.patch && !lowVersion.minor) { + return 'major' + } + + // Otherwise it can be determined by checking the high version + + if (highVersion.patch) { + // anything higher than a patch bump would result in the wrong version + return 'patch' + } + + if (highVersion.minor) { + // anything higher than a minor bump would result in the wrong version + return 'minor' + } + + // bumping major/minor/patch all have same result + return 'major' + } + + // add the `pre` prefix if we are going to a prerelease version + const prefix = highHasPre ? 'pre' : '' + + if (v1.major !== v2.major) { + return prefix + 'major' + } + + if (v1.minor !== v2.minor) { + return prefix + 'minor' + } + + if (v1.patch !== v2.patch) { + return prefix + 'patch' + } + + // high and low are preleases + return 'prerelease' +} + +module.exports = diff diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/eq.js b/week-3/04-course-app-hard/node_modules/semver/functions/eq.js new file mode 100644 index 000000000..271fed976 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/eq.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const eq = (a, b, loose) => compare(a, b, loose) === 0 +module.exports = eq diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/gt.js b/week-3/04-course-app-hard/node_modules/semver/functions/gt.js new file mode 100644 index 000000000..d9b2156d8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/gt.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const gt = (a, b, loose) => compare(a, b, loose) > 0 +module.exports = gt diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/gte.js b/week-3/04-course-app-hard/node_modules/semver/functions/gte.js new file mode 100644 index 000000000..5aeaa6347 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/gte.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const gte = (a, b, loose) => compare(a, b, loose) >= 0 +module.exports = gte diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/inc.js b/week-3/04-course-app-hard/node_modules/semver/functions/inc.js new file mode 100644 index 000000000..7670b1bea --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/inc.js @@ -0,0 +1,19 @@ +const SemVer = require('../classes/semver') + +const inc = (version, release, options, identifier, identifierBase) => { + if (typeof (options) === 'string') { + identifierBase = identifier + identifier = options + options = undefined + } + + try { + return new SemVer( + version instanceof SemVer ? version.version : version, + options + ).inc(release, identifier, identifierBase).version + } catch (er) { + return null + } +} +module.exports = inc diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/lt.js b/week-3/04-course-app-hard/node_modules/semver/functions/lt.js new file mode 100644 index 000000000..b440ab7d4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/lt.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const lt = (a, b, loose) => compare(a, b, loose) < 0 +module.exports = lt diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/lte.js b/week-3/04-course-app-hard/node_modules/semver/functions/lte.js new file mode 100644 index 000000000..6dcc95650 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/lte.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const lte = (a, b, loose) => compare(a, b, loose) <= 0 +module.exports = lte diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/major.js b/week-3/04-course-app-hard/node_modules/semver/functions/major.js new file mode 100644 index 000000000..4283165e9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/major.js @@ -0,0 +1,3 @@ +const SemVer = require('../classes/semver') +const major = (a, loose) => new SemVer(a, loose).major +module.exports = major diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/minor.js b/week-3/04-course-app-hard/node_modules/semver/functions/minor.js new file mode 100644 index 000000000..57b3455f8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/minor.js @@ -0,0 +1,3 @@ +const SemVer = require('../classes/semver') +const minor = (a, loose) => new SemVer(a, loose).minor +module.exports = minor diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/neq.js b/week-3/04-course-app-hard/node_modules/semver/functions/neq.js new file mode 100644 index 000000000..f944c0157 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/neq.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const neq = (a, b, loose) => compare(a, b, loose) !== 0 +module.exports = neq diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/parse.js b/week-3/04-course-app-hard/node_modules/semver/functions/parse.js new file mode 100644 index 000000000..459b3b173 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/parse.js @@ -0,0 +1,16 @@ +const SemVer = require('../classes/semver') +const parse = (version, options, throwErrors = false) => { + if (version instanceof SemVer) { + return version + } + try { + return new SemVer(version, options) + } catch (er) { + if (!throwErrors) { + return null + } + throw er + } +} + +module.exports = parse diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/patch.js b/week-3/04-course-app-hard/node_modules/semver/functions/patch.js new file mode 100644 index 000000000..63afca252 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/patch.js @@ -0,0 +1,3 @@ +const SemVer = require('../classes/semver') +const patch = (a, loose) => new SemVer(a, loose).patch +module.exports = patch diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/prerelease.js b/week-3/04-course-app-hard/node_modules/semver/functions/prerelease.js new file mode 100644 index 000000000..06aa13248 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/prerelease.js @@ -0,0 +1,6 @@ +const parse = require('./parse') +const prerelease = (version, options) => { + const parsed = parse(version, options) + return (parsed && parsed.prerelease.length) ? parsed.prerelease : null +} +module.exports = prerelease diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/rcompare.js b/week-3/04-course-app-hard/node_modules/semver/functions/rcompare.js new file mode 100644 index 000000000..0ac509e79 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/rcompare.js @@ -0,0 +1,3 @@ +const compare = require('./compare') +const rcompare = (a, b, loose) => compare(b, a, loose) +module.exports = rcompare diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/rsort.js b/week-3/04-course-app-hard/node_modules/semver/functions/rsort.js new file mode 100644 index 000000000..82404c5cf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/rsort.js @@ -0,0 +1,3 @@ +const compareBuild = require('./compare-build') +const rsort = (list, loose) => list.sort((a, b) => compareBuild(b, a, loose)) +module.exports = rsort diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/satisfies.js b/week-3/04-course-app-hard/node_modules/semver/functions/satisfies.js new file mode 100644 index 000000000..50af1c199 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/satisfies.js @@ -0,0 +1,10 @@ +const Range = require('../classes/range') +const satisfies = (version, range, options) => { + try { + range = new Range(range, options) + } catch (er) { + return false + } + return range.test(version) +} +module.exports = satisfies diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/sort.js b/week-3/04-course-app-hard/node_modules/semver/functions/sort.js new file mode 100644 index 000000000..4d10917ab --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/sort.js @@ -0,0 +1,3 @@ +const compareBuild = require('./compare-build') +const sort = (list, loose) => list.sort((a, b) => compareBuild(a, b, loose)) +module.exports = sort diff --git a/week-3/04-course-app-hard/node_modules/semver/functions/valid.js b/week-3/04-course-app-hard/node_modules/semver/functions/valid.js new file mode 100644 index 000000000..f27bae107 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/functions/valid.js @@ -0,0 +1,6 @@ +const parse = require('./parse') +const valid = (version, options) => { + const v = parse(version, options) + return v ? v.version : null +} +module.exports = valid diff --git a/week-3/04-course-app-hard/node_modules/semver/index.js b/week-3/04-course-app-hard/node_modules/semver/index.js new file mode 100644 index 000000000..86d42ac16 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/index.js @@ -0,0 +1,89 @@ +// just pre-load all the stuff that index.js lazily exports +const internalRe = require('./internal/re') +const constants = require('./internal/constants') +const SemVer = require('./classes/semver') +const identifiers = require('./internal/identifiers') +const parse = require('./functions/parse') +const valid = require('./functions/valid') +const clean = require('./functions/clean') +const inc = require('./functions/inc') +const diff = require('./functions/diff') +const major = require('./functions/major') +const minor = require('./functions/minor') +const patch = require('./functions/patch') +const prerelease = require('./functions/prerelease') +const compare = require('./functions/compare') +const rcompare = require('./functions/rcompare') +const compareLoose = require('./functions/compare-loose') +const compareBuild = require('./functions/compare-build') +const sort = require('./functions/sort') +const rsort = require('./functions/rsort') +const gt = require('./functions/gt') +const lt = require('./functions/lt') +const eq = require('./functions/eq') +const neq = require('./functions/neq') +const gte = require('./functions/gte') +const lte = require('./functions/lte') +const cmp = require('./functions/cmp') +const coerce = require('./functions/coerce') +const Comparator = require('./classes/comparator') +const Range = require('./classes/range') +const satisfies = require('./functions/satisfies') +const toComparators = require('./ranges/to-comparators') +const maxSatisfying = require('./ranges/max-satisfying') +const minSatisfying = require('./ranges/min-satisfying') +const minVersion = require('./ranges/min-version') +const validRange = require('./ranges/valid') +const outside = require('./ranges/outside') +const gtr = require('./ranges/gtr') +const ltr = require('./ranges/ltr') +const intersects = require('./ranges/intersects') +const simplifyRange = require('./ranges/simplify') +const subset = require('./ranges/subset') +module.exports = { + parse, + valid, + clean, + inc, + diff, + major, + minor, + patch, + prerelease, + compare, + rcompare, + compareLoose, + compareBuild, + sort, + rsort, + gt, + lt, + eq, + neq, + gte, + lte, + cmp, + coerce, + Comparator, + Range, + satisfies, + toComparators, + maxSatisfying, + minSatisfying, + minVersion, + validRange, + outside, + gtr, + ltr, + intersects, + simplifyRange, + subset, + SemVer, + re: internalRe.re, + src: internalRe.src, + tokens: internalRe.t, + SEMVER_SPEC_VERSION: constants.SEMVER_SPEC_VERSION, + RELEASE_TYPES: constants.RELEASE_TYPES, + compareIdentifiers: identifiers.compareIdentifiers, + rcompareIdentifiers: identifiers.rcompareIdentifiers, +} diff --git a/week-3/04-course-app-hard/node_modules/semver/internal/constants.js b/week-3/04-course-app-hard/node_modules/semver/internal/constants.js new file mode 100644 index 000000000..94be1c570 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/internal/constants.js @@ -0,0 +1,35 @@ +// Note: this is the semver.org version of the spec that it implements +// Not necessarily the package version of this code. +const SEMVER_SPEC_VERSION = '2.0.0' + +const MAX_LENGTH = 256 +const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || +/* istanbul ignore next */ 9007199254740991 + +// Max safe segment length for coercion. +const MAX_SAFE_COMPONENT_LENGTH = 16 + +// Max safe length for a build identifier. The max length minus 6 characters for +// the shortest version with a build 0.0.0+BUILD. +const MAX_SAFE_BUILD_LENGTH = MAX_LENGTH - 6 + +const RELEASE_TYPES = [ + 'major', + 'premajor', + 'minor', + 'preminor', + 'patch', + 'prepatch', + 'prerelease', +] + +module.exports = { + MAX_LENGTH, + MAX_SAFE_COMPONENT_LENGTH, + MAX_SAFE_BUILD_LENGTH, + MAX_SAFE_INTEGER, + RELEASE_TYPES, + SEMVER_SPEC_VERSION, + FLAG_INCLUDE_PRERELEASE: 0b001, + FLAG_LOOSE: 0b010, +} diff --git a/week-3/04-course-app-hard/node_modules/semver/internal/debug.js b/week-3/04-course-app-hard/node_modules/semver/internal/debug.js new file mode 100644 index 000000000..1c00e1369 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/internal/debug.js @@ -0,0 +1,9 @@ +const debug = ( + typeof process === 'object' && + process.env && + process.env.NODE_DEBUG && + /\bsemver\b/i.test(process.env.NODE_DEBUG) +) ? (...args) => console.error('SEMVER', ...args) + : () => {} + +module.exports = debug diff --git a/week-3/04-course-app-hard/node_modules/semver/internal/identifiers.js b/week-3/04-course-app-hard/node_modules/semver/internal/identifiers.js new file mode 100644 index 000000000..e612d0a3d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/internal/identifiers.js @@ -0,0 +1,23 @@ +const numeric = /^[0-9]+$/ +const compareIdentifiers = (a, b) => { + const anum = numeric.test(a) + const bnum = numeric.test(b) + + if (anum && bnum) { + a = +a + b = +b + } + + return a === b ? 0 + : (anum && !bnum) ? -1 + : (bnum && !anum) ? 1 + : a < b ? -1 + : 1 +} + +const rcompareIdentifiers = (a, b) => compareIdentifiers(b, a) + +module.exports = { + compareIdentifiers, + rcompareIdentifiers, +} diff --git a/week-3/04-course-app-hard/node_modules/semver/internal/lrucache.js b/week-3/04-course-app-hard/node_modules/semver/internal/lrucache.js new file mode 100644 index 000000000..6d89ec948 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/internal/lrucache.js @@ -0,0 +1,40 @@ +class LRUCache { + constructor () { + this.max = 1000 + this.map = new Map() + } + + get (key) { + const value = this.map.get(key) + if (value === undefined) { + return undefined + } else { + // Remove the key from the map and add it to the end + this.map.delete(key) + this.map.set(key, value) + return value + } + } + + delete (key) { + return this.map.delete(key) + } + + set (key, value) { + const deleted = this.delete(key) + + if (!deleted && value !== undefined) { + // If cache is full, delete the least recently used item + if (this.map.size >= this.max) { + const firstKey = this.map.keys().next().value + this.delete(firstKey) + } + + this.map.set(key, value) + } + + return this + } +} + +module.exports = LRUCache diff --git a/week-3/04-course-app-hard/node_modules/semver/internal/parse-options.js b/week-3/04-course-app-hard/node_modules/semver/internal/parse-options.js new file mode 100644 index 000000000..10d64ce06 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/internal/parse-options.js @@ -0,0 +1,15 @@ +// parse out just the options we care about +const looseOption = Object.freeze({ loose: true }) +const emptyOpts = Object.freeze({ }) +const parseOptions = options => { + if (!options) { + return emptyOpts + } + + if (typeof options !== 'object') { + return looseOption + } + + return options +} +module.exports = parseOptions diff --git a/week-3/04-course-app-hard/node_modules/semver/internal/re.js b/week-3/04-course-app-hard/node_modules/semver/internal/re.js new file mode 100644 index 000000000..fd8920e7b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/internal/re.js @@ -0,0 +1,217 @@ +const { + MAX_SAFE_COMPONENT_LENGTH, + MAX_SAFE_BUILD_LENGTH, + MAX_LENGTH, +} = require('./constants') +const debug = require('./debug') +exports = module.exports = {} + +// The actual regexps go on exports.re +const re = exports.re = [] +const safeRe = exports.safeRe = [] +const src = exports.src = [] +const t = exports.t = {} +let R = 0 + +const LETTERDASHNUMBER = '[a-zA-Z0-9-]' + +// Replace some greedy regex tokens to prevent regex dos issues. These regex are +// used internally via the safeRe object since all inputs in this library get +// normalized first to trim and collapse all extra whitespace. The original +// regexes are exported for userland consumption and lower level usage. A +// future breaking change could export the safer regex only with a note that +// all input should have extra whitespace removed. +const safeRegexReplacements = [ + ['\\s', 1], + ['\\d', MAX_LENGTH], + [LETTERDASHNUMBER, MAX_SAFE_BUILD_LENGTH], +] + +const makeSafeRegex = (value) => { + for (const [token, max] of safeRegexReplacements) { + value = value + .split(`${token}*`).join(`${token}{0,${max}}`) + .split(`${token}+`).join(`${token}{1,${max}}`) + } + return value +} + +const createToken = (name, value, isGlobal) => { + const safe = makeSafeRegex(value) + const index = R++ + debug(name, index, value) + t[name] = index + src[index] = value + re[index] = new RegExp(value, isGlobal ? 'g' : undefined) + safeRe[index] = new RegExp(safe, isGlobal ? 'g' : undefined) +} + +// The following Regular Expressions can be used for tokenizing, +// validating, and parsing SemVer version strings. + +// ## Numeric Identifier +// A single `0`, or a non-zero digit followed by zero or more digits. + +createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*') +createToken('NUMERICIDENTIFIERLOOSE', '\\d+') + +// ## Non-numeric Identifier +// Zero or more digits, followed by a letter or hyphen, and then zero or +// more letters, digits, or hyphens. + +createToken('NONNUMERICIDENTIFIER', `\\d*[a-zA-Z-]${LETTERDASHNUMBER}*`) + +// ## Main Version +// Three dot-separated numeric identifiers. + +createToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\.` + + `(${src[t.NUMERICIDENTIFIER]})\\.` + + `(${src[t.NUMERICIDENTIFIER]})`) + +createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` + + `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` + + `(${src[t.NUMERICIDENTIFIERLOOSE]})`) + +// ## Pre-release Version Identifier +// A numeric identifier, or a non-numeric identifier. + +createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NUMERICIDENTIFIER] +}|${src[t.NONNUMERICIDENTIFIER]})`) + +createToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NUMERICIDENTIFIERLOOSE] +}|${src[t.NONNUMERICIDENTIFIER]})`) + +// ## Pre-release Version +// Hyphen, followed by one or more dot-separated pre-release version +// identifiers. + +createToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER] +}(?:\\.${src[t.PRERELEASEIDENTIFIER]})*))`) + +createToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE] +}(?:\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`) + +// ## Build Metadata Identifier +// Any combination of digits, letters, or hyphens. + +createToken('BUILDIDENTIFIER', `${LETTERDASHNUMBER}+`) + +// ## Build Metadata +// Plus sign, followed by one or more period-separated build metadata +// identifiers. + +createToken('BUILD', `(?:\\+(${src[t.BUILDIDENTIFIER] +}(?:\\.${src[t.BUILDIDENTIFIER]})*))`) + +// ## Full Version String +// A main version, followed optionally by a pre-release version and +// build metadata. + +// Note that the only major, minor, patch, and pre-release sections of +// the version string are capturing groups. The build metadata is not a +// capturing group, because it should not ever be used in version +// comparison. + +createToken('FULLPLAIN', `v?${src[t.MAINVERSION] +}${src[t.PRERELEASE]}?${ + src[t.BUILD]}?`) + +createToken('FULL', `^${src[t.FULLPLAIN]}$`) + +// like full, but allows v1.2.3 and =1.2.3, which people do sometimes. +// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty +// common in the npm registry. +createToken('LOOSEPLAIN', `[v=\\s]*${src[t.MAINVERSIONLOOSE] +}${src[t.PRERELEASELOOSE]}?${ + src[t.BUILD]}?`) + +createToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`) + +createToken('GTLT', '((?:<|>)?=?)') + +// Something like "2.*" or "1.2.x". +// Note that "x.x" is a valid xRange identifer, meaning "any version" +// Only the first item is strictly required. +createToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\*`) +createToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\*`) + +createToken('XRANGEPLAIN', `[v=\\s]*(${src[t.XRANGEIDENTIFIER]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIER]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIER]})` + + `(?:${src[t.PRERELEASE]})?${ + src[t.BUILD]}?` + + `)?)?`) + +createToken('XRANGEPLAINLOOSE', `[v=\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` + + `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` + + `(?:${src[t.PRERELEASELOOSE]})?${ + src[t.BUILD]}?` + + `)?)?`) + +createToken('XRANGE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAIN]}$`) +createToken('XRANGELOOSE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAINLOOSE]}$`) + +// Coercion. +// Extract anything that could conceivably be a part of a valid semver +createToken('COERCEPLAIN', `${'(^|[^\\d])' + + '(\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` + + `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` + + `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?`) +createToken('COERCE', `${src[t.COERCEPLAIN]}(?:$|[^\\d])`) +createToken('COERCEFULL', src[t.COERCEPLAIN] + + `(?:${src[t.PRERELEASE]})?` + + `(?:${src[t.BUILD]})?` + + `(?:$|[^\\d])`) +createToken('COERCERTL', src[t.COERCE], true) +createToken('COERCERTLFULL', src[t.COERCEFULL], true) + +// Tilde ranges. +// Meaning is "reasonably at or greater than" +createToken('LONETILDE', '(?:~>?)') + +createToken('TILDETRIM', `(\\s*)${src[t.LONETILDE]}\\s+`, true) +exports.tildeTrimReplace = '$1~' + +createToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`) +createToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`) + +// Caret ranges. +// Meaning is "at least and backwards compatible with" +createToken('LONECARET', '(?:\\^)') + +createToken('CARETTRIM', `(\\s*)${src[t.LONECARET]}\\s+`, true) +exports.caretTrimReplace = '$1^' + +createToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`) +createToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`) + +// A simple gt/lt/eq thing, or just "" to indicate "any version" +createToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\s*(${src[t.LOOSEPLAIN]})$|^$`) +createToken('COMPARATOR', `^${src[t.GTLT]}\\s*(${src[t.FULLPLAIN]})$|^$`) + +// An expression to strip any whitespace between the gtlt and the thing +// it modifies, so that `> 1.2.3` ==> `>1.2.3` +createToken('COMPARATORTRIM', `(\\s*)${src[t.GTLT] +}\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true) +exports.comparatorTrimReplace = '$1$2$3' + +// Something like `1.2.3 - 1.2.4` +// Note that these all use the loose form, because they'll be +// checked against either the strict or loose comparator form +// later. +createToken('HYPHENRANGE', `^\\s*(${src[t.XRANGEPLAIN]})` + + `\\s+-\\s+` + + `(${src[t.XRANGEPLAIN]})` + + `\\s*$`) + +createToken('HYPHENRANGELOOSE', `^\\s*(${src[t.XRANGEPLAINLOOSE]})` + + `\\s+-\\s+` + + `(${src[t.XRANGEPLAINLOOSE]})` + + `\\s*$`) + +// Star ranges basically just allow anything at all. +createToken('STAR', '(<|>)?=?\\s*\\*') +// >=0.0.0 is like a star +createToken('GTE0', '^\\s*>=\\s*0\\.0\\.0\\s*$') +createToken('GTE0PRE', '^\\s*>=\\s*0\\.0\\.0-0\\s*$') diff --git a/week-3/04-course-app-hard/node_modules/semver/package.json b/week-3/04-course-app-hard/node_modules/semver/package.json new file mode 100644 index 000000000..cb8def451 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/package.json @@ -0,0 +1,77 @@ +{ + "name": "semver", + "version": "7.6.2", + "description": "The semantic version parser used by npm.", + "main": "index.js", + "scripts": { + "test": "tap", + "snap": "tap", + "lint": "eslint \"**/*.{js,cjs,ts,mjs,jsx,tsx}\"", + "postlint": "template-oss-check", + "lintfix": "npm run lint -- --fix", + "posttest": "npm run lint", + "template-oss-apply": "template-oss-apply --force" + }, + "devDependencies": { + "@npmcli/eslint-config": "^4.0.0", + "@npmcli/template-oss": "4.22.0", + "benchmark": "^2.1.4", + "tap": "^16.0.0" + }, + "license": "ISC", + "repository": { + "type": "git", + "url": "git+https://github.com/npm/node-semver.git" + }, + "bin": { + "semver": "bin/semver.js" + }, + "files": [ + "bin/", + "lib/", + "classes/", + "functions/", + "internal/", + "ranges/", + "index.js", + "preload.js", + "range.bnf" + ], + "tap": { + "timeout": 30, + "coverage-map": "map.js", + "nyc-arg": [ + "--exclude", + "tap-snapshots/**" + ] + }, + "engines": { + "node": ">=10" + }, + "author": "GitHub Inc.", + "templateOSS": { + "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.", + "version": "4.22.0", + "engines": ">=10", + "distPaths": [ + "classes/", + "functions/", + "internal/", + "ranges/", + "index.js", + "preload.js", + "range.bnf" + ], + "allowPaths": [ + "/classes/", + "/functions/", + "/internal/", + "/ranges/", + "/index.js", + "/preload.js", + "/range.bnf", + "/benchmarks" + ], + "publish": "true" + } +} diff --git a/week-3/04-course-app-hard/node_modules/semver/preload.js b/week-3/04-course-app-hard/node_modules/semver/preload.js new file mode 100644 index 000000000..947cd4f79 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/preload.js @@ -0,0 +1,2 @@ +// XXX remove in v8 or beyond +module.exports = require('./index.js') diff --git a/week-3/04-course-app-hard/node_modules/semver/range.bnf b/week-3/04-course-app-hard/node_modules/semver/range.bnf new file mode 100644 index 000000000..d4c6ae0d7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/range.bnf @@ -0,0 +1,16 @@ +range-set ::= range ( logical-or range ) * +logical-or ::= ( ' ' ) * '||' ( ' ' ) * +range ::= hyphen | simple ( ' ' simple ) * | '' +hyphen ::= partial ' - ' partial +simple ::= primitive | partial | tilde | caret +primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial +partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )? +xr ::= 'x' | 'X' | '*' | nr +nr ::= '0' | [1-9] ( [0-9] ) * +tilde ::= '~' partial +caret ::= '^' partial +qualifier ::= ( '-' pre )? ( '+' build )? +pre ::= parts +build ::= parts +parts ::= part ( '.' part ) * +part ::= nr | [-0-9A-Za-z]+ diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/gtr.js b/week-3/04-course-app-hard/node_modules/semver/ranges/gtr.js new file mode 100644 index 000000000..db7e35599 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/gtr.js @@ -0,0 +1,4 @@ +// Determine if version is greater than all the versions possible in the range. +const outside = require('./outside') +const gtr = (version, range, options) => outside(version, range, '>', options) +module.exports = gtr diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/intersects.js b/week-3/04-course-app-hard/node_modules/semver/ranges/intersects.js new file mode 100644 index 000000000..e0e9b7ce0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/intersects.js @@ -0,0 +1,7 @@ +const Range = require('../classes/range') +const intersects = (r1, r2, options) => { + r1 = new Range(r1, options) + r2 = new Range(r2, options) + return r1.intersects(r2, options) +} +module.exports = intersects diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/ltr.js b/week-3/04-course-app-hard/node_modules/semver/ranges/ltr.js new file mode 100644 index 000000000..528a885eb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/ltr.js @@ -0,0 +1,4 @@ +const outside = require('./outside') +// Determine if version is less than all the versions possible in the range +const ltr = (version, range, options) => outside(version, range, '<', options) +module.exports = ltr diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/max-satisfying.js b/week-3/04-course-app-hard/node_modules/semver/ranges/max-satisfying.js new file mode 100644 index 000000000..6e3d993c6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/max-satisfying.js @@ -0,0 +1,25 @@ +const SemVer = require('../classes/semver') +const Range = require('../classes/range') + +const maxSatisfying = (versions, range, options) => { + let max = null + let maxSV = null + let rangeObj = null + try { + rangeObj = new Range(range, options) + } catch (er) { + return null + } + versions.forEach((v) => { + if (rangeObj.test(v)) { + // satisfies(v, range, options) + if (!max || maxSV.compare(v) === -1) { + // compare(max, v, true) + max = v + maxSV = new SemVer(max, options) + } + } + }) + return max +} +module.exports = maxSatisfying diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/min-satisfying.js b/week-3/04-course-app-hard/node_modules/semver/ranges/min-satisfying.js new file mode 100644 index 000000000..9b60974e2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/min-satisfying.js @@ -0,0 +1,24 @@ +const SemVer = require('../classes/semver') +const Range = require('../classes/range') +const minSatisfying = (versions, range, options) => { + let min = null + let minSV = null + let rangeObj = null + try { + rangeObj = new Range(range, options) + } catch (er) { + return null + } + versions.forEach((v) => { + if (rangeObj.test(v)) { + // satisfies(v, range, options) + if (!min || minSV.compare(v) === 1) { + // compare(min, v, true) + min = v + minSV = new SemVer(min, options) + } + } + }) + return min +} +module.exports = minSatisfying diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/min-version.js b/week-3/04-course-app-hard/node_modules/semver/ranges/min-version.js new file mode 100644 index 000000000..350e1f783 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/min-version.js @@ -0,0 +1,61 @@ +const SemVer = require('../classes/semver') +const Range = require('../classes/range') +const gt = require('../functions/gt') + +const minVersion = (range, loose) => { + range = new Range(range, loose) + + let minver = new SemVer('0.0.0') + if (range.test(minver)) { + return minver + } + + minver = new SemVer('0.0.0-0') + if (range.test(minver)) { + return minver + } + + minver = null + for (let i = 0; i < range.set.length; ++i) { + const comparators = range.set[i] + + let setMin = null + comparators.forEach((comparator) => { + // Clone to avoid manipulating the comparator's semver object. + const compver = new SemVer(comparator.semver.version) + switch (comparator.operator) { + case '>': + if (compver.prerelease.length === 0) { + compver.patch++ + } else { + compver.prerelease.push(0) + } + compver.raw = compver.format() + /* fallthrough */ + case '': + case '>=': + if (!setMin || gt(compver, setMin)) { + setMin = compver + } + break + case '<': + case '<=': + /* Ignore maximum versions */ + break + /* istanbul ignore next */ + default: + throw new Error(`Unexpected operation: ${comparator.operator}`) + } + }) + if (setMin && (!minver || gt(minver, setMin))) { + minver = setMin + } + } + + if (minver && range.test(minver)) { + return minver + } + + return null +} +module.exports = minVersion diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/outside.js b/week-3/04-course-app-hard/node_modules/semver/ranges/outside.js new file mode 100644 index 000000000..ae99b10a5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/outside.js @@ -0,0 +1,80 @@ +const SemVer = require('../classes/semver') +const Comparator = require('../classes/comparator') +const { ANY } = Comparator +const Range = require('../classes/range') +const satisfies = require('../functions/satisfies') +const gt = require('../functions/gt') +const lt = require('../functions/lt') +const lte = require('../functions/lte') +const gte = require('../functions/gte') + +const outside = (version, range, hilo, options) => { + version = new SemVer(version, options) + range = new Range(range, options) + + let gtfn, ltefn, ltfn, comp, ecomp + switch (hilo) { + case '>': + gtfn = gt + ltefn = lte + ltfn = lt + comp = '>' + ecomp = '>=' + break + case '<': + gtfn = lt + ltefn = gte + ltfn = gt + comp = '<' + ecomp = '<=' + break + default: + throw new TypeError('Must provide a hilo val of "<" or ">"') + } + + // If it satisfies the range it is not outside + if (satisfies(version, range, options)) { + return false + } + + // From now on, variable terms are as if we're in "gtr" mode. + // but note that everything is flipped for the "ltr" function. + + for (let i = 0; i < range.set.length; ++i) { + const comparators = range.set[i] + + let high = null + let low = null + + comparators.forEach((comparator) => { + if (comparator.semver === ANY) { + comparator = new Comparator('>=0.0.0') + } + high = high || comparator + low = low || comparator + if (gtfn(comparator.semver, high.semver, options)) { + high = comparator + } else if (ltfn(comparator.semver, low.semver, options)) { + low = comparator + } + }) + + // If the edge version comparator has a operator then our version + // isn't outside it + if (high.operator === comp || high.operator === ecomp) { + return false + } + + // If the lowest version comparator has an operator and our version + // is less than it then it isn't higher than the range + if ((!low.operator || low.operator === comp) && + ltefn(version, low.semver)) { + return false + } else if (low.operator === ecomp && ltfn(version, low.semver)) { + return false + } + } + return true +} + +module.exports = outside diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/simplify.js b/week-3/04-course-app-hard/node_modules/semver/ranges/simplify.js new file mode 100644 index 000000000..618d5b627 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/simplify.js @@ -0,0 +1,47 @@ +// given a set of versions and a range, create a "simplified" range +// that includes the same versions that the original range does +// If the original range is shorter than the simplified one, return that. +const satisfies = require('../functions/satisfies.js') +const compare = require('../functions/compare.js') +module.exports = (versions, range, options) => { + const set = [] + let first = null + let prev = null + const v = versions.sort((a, b) => compare(a, b, options)) + for (const version of v) { + const included = satisfies(version, range, options) + if (included) { + prev = version + if (!first) { + first = version + } + } else { + if (prev) { + set.push([first, prev]) + } + prev = null + first = null + } + } + if (first) { + set.push([first, null]) + } + + const ranges = [] + for (const [min, max] of set) { + if (min === max) { + ranges.push(min) + } else if (!max && min === v[0]) { + ranges.push('*') + } else if (!max) { + ranges.push(`>=${min}`) + } else if (min === v[0]) { + ranges.push(`<=${max}`) + } else { + ranges.push(`${min} - ${max}`) + } + } + const simplified = ranges.join(' || ') + const original = typeof range.raw === 'string' ? range.raw : String(range) + return simplified.length < original.length ? simplified : range +} diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/subset.js b/week-3/04-course-app-hard/node_modules/semver/ranges/subset.js new file mode 100644 index 000000000..1e5c26837 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/subset.js @@ -0,0 +1,247 @@ +const Range = require('../classes/range.js') +const Comparator = require('../classes/comparator.js') +const { ANY } = Comparator +const satisfies = require('../functions/satisfies.js') +const compare = require('../functions/compare.js') + +// Complex range `r1 || r2 || ...` is a subset of `R1 || R2 || ...` iff: +// - Every simple range `r1, r2, ...` is a null set, OR +// - Every simple range `r1, r2, ...` which is not a null set is a subset of +// some `R1, R2, ...` +// +// Simple range `c1 c2 ...` is a subset of simple range `C1 C2 ...` iff: +// - If c is only the ANY comparator +// - If C is only the ANY comparator, return true +// - Else if in prerelease mode, return false +// - else replace c with `[>=0.0.0]` +// - If C is only the ANY comparator +// - if in prerelease mode, return true +// - else replace C with `[>=0.0.0]` +// - Let EQ be the set of = comparators in c +// - If EQ is more than one, return true (null set) +// - Let GT be the highest > or >= comparator in c +// - Let LT be the lowest < or <= comparator in c +// - If GT and LT, and GT.semver > LT.semver, return true (null set) +// - If any C is a = range, and GT or LT are set, return false +// - If EQ +// - If GT, and EQ does not satisfy GT, return true (null set) +// - If LT, and EQ does not satisfy LT, return true (null set) +// - If EQ satisfies every C, return true +// - Else return false +// - If GT +// - If GT.semver is lower than any > or >= comp in C, return false +// - If GT is >=, and GT.semver does not satisfy every C, return false +// - If GT.semver has a prerelease, and not in prerelease mode +// - If no C has a prerelease and the GT.semver tuple, return false +// - If LT +// - If LT.semver is greater than any < or <= comp in C, return false +// - If LT is <=, and LT.semver does not satisfy every C, return false +// - If GT.semver has a prerelease, and not in prerelease mode +// - If no C has a prerelease and the LT.semver tuple, return false +// - Else return true + +const subset = (sub, dom, options = {}) => { + if (sub === dom) { + return true + } + + sub = new Range(sub, options) + dom = new Range(dom, options) + let sawNonNull = false + + OUTER: for (const simpleSub of sub.set) { + for (const simpleDom of dom.set) { + const isSub = simpleSubset(simpleSub, simpleDom, options) + sawNonNull = sawNonNull || isSub !== null + if (isSub) { + continue OUTER + } + } + // the null set is a subset of everything, but null simple ranges in + // a complex range should be ignored. so if we saw a non-null range, + // then we know this isn't a subset, but if EVERY simple range was null, + // then it is a subset. + if (sawNonNull) { + return false + } + } + return true +} + +const minimumVersionWithPreRelease = [new Comparator('>=0.0.0-0')] +const minimumVersion = [new Comparator('>=0.0.0')] + +const simpleSubset = (sub, dom, options) => { + if (sub === dom) { + return true + } + + if (sub.length === 1 && sub[0].semver === ANY) { + if (dom.length === 1 && dom[0].semver === ANY) { + return true + } else if (options.includePrerelease) { + sub = minimumVersionWithPreRelease + } else { + sub = minimumVersion + } + } + + if (dom.length === 1 && dom[0].semver === ANY) { + if (options.includePrerelease) { + return true + } else { + dom = minimumVersion + } + } + + const eqSet = new Set() + let gt, lt + for (const c of sub) { + if (c.operator === '>' || c.operator === '>=') { + gt = higherGT(gt, c, options) + } else if (c.operator === '<' || c.operator === '<=') { + lt = lowerLT(lt, c, options) + } else { + eqSet.add(c.semver) + } + } + + if (eqSet.size > 1) { + return null + } + + let gtltComp + if (gt && lt) { + gtltComp = compare(gt.semver, lt.semver, options) + if (gtltComp > 0) { + return null + } else if (gtltComp === 0 && (gt.operator !== '>=' || lt.operator !== '<=')) { + return null + } + } + + // will iterate one or zero times + for (const eq of eqSet) { + if (gt && !satisfies(eq, String(gt), options)) { + return null + } + + if (lt && !satisfies(eq, String(lt), options)) { + return null + } + + for (const c of dom) { + if (!satisfies(eq, String(c), options)) { + return false + } + } + + return true + } + + let higher, lower + let hasDomLT, hasDomGT + // if the subset has a prerelease, we need a comparator in the superset + // with the same tuple and a prerelease, or it's not a subset + let needDomLTPre = lt && + !options.includePrerelease && + lt.semver.prerelease.length ? lt.semver : false + let needDomGTPre = gt && + !options.includePrerelease && + gt.semver.prerelease.length ? gt.semver : false + // exception: <1.2.3-0 is the same as <1.2.3 + if (needDomLTPre && needDomLTPre.prerelease.length === 1 && + lt.operator === '<' && needDomLTPre.prerelease[0] === 0) { + needDomLTPre = false + } + + for (const c of dom) { + hasDomGT = hasDomGT || c.operator === '>' || c.operator === '>=' + hasDomLT = hasDomLT || c.operator === '<' || c.operator === '<=' + if (gt) { + if (needDomGTPre) { + if (c.semver.prerelease && c.semver.prerelease.length && + c.semver.major === needDomGTPre.major && + c.semver.minor === needDomGTPre.minor && + c.semver.patch === needDomGTPre.patch) { + needDomGTPre = false + } + } + if (c.operator === '>' || c.operator === '>=') { + higher = higherGT(gt, c, options) + if (higher === c && higher !== gt) { + return false + } + } else if (gt.operator === '>=' && !satisfies(gt.semver, String(c), options)) { + return false + } + } + if (lt) { + if (needDomLTPre) { + if (c.semver.prerelease && c.semver.prerelease.length && + c.semver.major === needDomLTPre.major && + c.semver.minor === needDomLTPre.minor && + c.semver.patch === needDomLTPre.patch) { + needDomLTPre = false + } + } + if (c.operator === '<' || c.operator === '<=') { + lower = lowerLT(lt, c, options) + if (lower === c && lower !== lt) { + return false + } + } else if (lt.operator === '<=' && !satisfies(lt.semver, String(c), options)) { + return false + } + } + if (!c.operator && (lt || gt) && gtltComp !== 0) { + return false + } + } + + // if there was a < or >, and nothing in the dom, then must be false + // UNLESS it was limited by another range in the other direction. + // Eg, >1.0.0 <1.0.1 is still a subset of <2.0.0 + if (gt && hasDomLT && !lt && gtltComp !== 0) { + return false + } + + if (lt && hasDomGT && !gt && gtltComp !== 0) { + return false + } + + // we needed a prerelease range in a specific tuple, but didn't get one + // then this isn't a subset. eg >=1.2.3-pre is not a subset of >=1.0.0, + // because it includes prereleases in the 1.2.3 tuple + if (needDomGTPre || needDomLTPre) { + return false + } + + return true +} + +// >=1.2.3 is lower than >1.2.3 +const higherGT = (a, b, options) => { + if (!a) { + return b + } + const comp = compare(a.semver, b.semver, options) + return comp > 0 ? a + : comp < 0 ? b + : b.operator === '>' && a.operator === '>=' ? b + : a +} + +// <=1.2.3 is higher than <1.2.3 +const lowerLT = (a, b, options) => { + if (!a) { + return b + } + const comp = compare(a.semver, b.semver, options) + return comp < 0 ? a + : comp > 0 ? b + : b.operator === '<' && a.operator === '<=' ? b + : a +} + +module.exports = subset diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/to-comparators.js b/week-3/04-course-app-hard/node_modules/semver/ranges/to-comparators.js new file mode 100644 index 000000000..6c8bc7e6f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/to-comparators.js @@ -0,0 +1,8 @@ +const Range = require('../classes/range') + +// Mostly just for testing and legacy API reasons +const toComparators = (range, options) => + new Range(range, options).set + .map(comp => comp.map(c => c.value).join(' ').trim().split(' ')) + +module.exports = toComparators diff --git a/week-3/04-course-app-hard/node_modules/semver/ranges/valid.js b/week-3/04-course-app-hard/node_modules/semver/ranges/valid.js new file mode 100644 index 000000000..365f35689 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/semver/ranges/valid.js @@ -0,0 +1,11 @@ +const Range = require('../classes/range') +const validRange = (range, options) => { + try { + // Return '*' instead of '' so that truthiness works. + // This will throw if it's invalid anyway + return new Range(range, options).range || '*' + } catch (er) { + return null + } +} +module.exports = validRange diff --git a/week-3/04-course-app-hard/node_modules/sift/MIT-LICENSE.txt b/week-3/04-course-app-hard/node_modules/sift/MIT-LICENSE.txt new file mode 100644 index 000000000..c080d2eb0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/MIT-LICENSE.txt @@ -0,0 +1,20 @@ +Copyright (c) 2015 Craig Condon + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/sift/README.md b/week-3/04-course-app-hard/node_modules/sift/README.md new file mode 100644 index 000000000..0501d1a19 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/README.md @@ -0,0 +1,465 @@ +**Installation**: `npm install sift`, or `yarn add sift` + +## Sift is a tiny library for using MongoDB queries in Javascript + +[![Build Status](https://secure.travis-ci.org/crcn/sift.js.png)](https://secure.travis-ci.org/crcn/sift.js) + + + + +**For extended documentation, checkout http://docs.mongodb.org/manual/reference/operator/query/** + +## Features: + +- Supported operators: [\$in](#in), [\$nin](#nin), [\$exists](#exists), [\$gte](#gte), [\$gt](#gt), [\$lte](#lte), [\$lt](#lt), [\$eq](#eq), [\$ne](#ne), [\$mod](#mod), [\$all](#all), [\$and](#and), [\$or](#or), [\$nor](#nor), [\$not](#not), [\$size](#size), [\$type](#type), [\$regex](#regex), [\$where](#where), [\$elemMatch](#elemmatch) +- Regexp searches +- Supports node.js, and web +- Custom Operations +- Tree-shaking (omitting functionality from web app bundles) + +## Examples + +```javascript +import sift from "sift"; + +// intersecting arrays +const result1 = ["hello", "sifted", "array!"].filter( + sift({ $in: ["hello", "world"] }), +); // ['hello'] + +// regexp filter +const result2 = ["craig", "john", "jake"].filter(sift(/^j/)); //['john','jake'] + +// function filter +const testFilter = sift({ + //you can also filter against functions + name: function (value) { + return value.length == 5; + }, +}); + +const result3 = [ + { + name: "craig", + }, + { + name: "john", + }, + { + name: "jake", + }, +].filter(testFilter); // filtered: [{ name: 'craig' }] + +// you can test *single values* against your custom sifter +testFilter({ name: "sarah" }); //true +testFilter({ name: "tim" }); //false +``` + +## API + +### sift(query: MongoQuery, options?: Options): Function + +Creates a filter with all the built-in MongoDB query operations. + +- `query` - the filter to use against the target array +- `options` + - `operations` - [custom operations](#custom-operations) + - `compare` - compares difference between two values + +Example: + +```javascript +import sift from "sift"; + +const test = sift({ $gt: 5 }); + +console.log(test(6)); // true +console.log(test(4)); // false + +[3, 4, 5, 6, 7].filter(test); // [6, 7] +``` + +### createQueryTester(query: Query, options?: Options): Function + +Creates a filter function **without** built-in MongoDB query operations. This is useful +if you're looking to omit certain operations from application bundles. See [Omitting built-in operations](#omitting-built-in-operations) for more info. + +```javascript +import { createQueryTester, $eq, $in } from "sift"; +const filter = createQueryTester({ $eq: 5 }, { operations: { $eq, $in } }); +``` + +### createEqualsOperation(params: any, ownerQuery: Query, options: Options): Operation + +Used for [custom operations](#custom-operations). + +```javascript +import { createQueryTester, createEqualsOperation, $eq, $in } from "sift"; +const filter = createQueryTester( + { $mod: 5 }, + { + operations: { + $something(mod, ownerQuery, options) { + return createEqualsOperation( + (value) => value % mod === 0, + ownerQuery, + options, + ); + }, + }, + }, +); +filter(10); // true +filter(11); // false +``` + +## Supported Operators + +See MongoDB's [advanced queries](http://www.mongodb.org/display/DOCS/Advanced+Queries) for more info. + +### \$in + +array value must be _\$in_ the given query: + +Intersecting two arrays: + +```javascript +// filtered: ['Brazil'] +["Brazil", "Haiti", "Peru", "Chile"].filter( + sift({ $in: ["Costa Rica", "Brazil"] }), +); +``` + +Here's another example. This acts more like the \$or operator: + +```javascript +[{ name: "Craig", location: "Brazil" }].filter( + sift({ location: { $in: ["Costa Rica", "Brazil"] } }), +); +``` + +### \$nin + +Opposite of \$in: + +```javascript +// filtered: ['Haiti','Peru','Chile'] +["Brazil", "Haiti", "Peru", "Chile"].filter( + sift({ $nin: ["Costa Rica", "Brazil"] }), +); +``` + +### \$exists + +Checks if whether a value exists: + +```javascript +// filtered: ['Craig','Tim'] +sift({ $exists: true })(["Craig", null, "Tim"]); +``` + +You can also filter out values that don't exist + +```javascript +// filtered: [{ name: "Tim" }] +[{ name: "Craig", city: "Minneapolis" }, { name: "Tim" }].filter( + sift({ city: { $exists: false } }), +); +``` + +### \$gte + +Checks if a number is >= value: + +```javascript +// filtered: [2, 3] +[0, 1, 2, 3].filter(sift({ $gte: 2 })); +``` + +### \$gt + +Checks if a number is > value: + +```javascript +// filtered: [3] +[0, 1, 2, 3].filter(sift({ $gt: 2 })); +``` + +### \$lte + +Checks if a number is <= value. + +```javascript +// filtered: [0, 1, 2] +[0, 1, 2, 3].filter(sift({ $lte: 2 })); +``` + +### \$lt + +Checks if number is < value. + +```javascript +// filtered: [0, 1] +[0, 1, 2, 3].filter(sift({ $lt: 2 })); +``` + +### \$eq + +Checks if `query === value`. Note that **\$eq can be omitted**. For **\$eq**, and **\$ne** + +```javascript +// filtered: [{ state: 'MN' }] +[{ state: "MN" }, { state: "CA" }, { state: "WI" }].filter( + sift({ state: { $eq: "MN" } }), +); +``` + +Or: + +```javascript +// filtered: [{ state: 'MN' }] +[{ state: "MN" }, { state: "CA" }, { state: "WI" }].filter( + sift({ state: "MN" }), +); +``` + +### \$ne + +Checks if `query !== value`. + +```javascript +// filtered: [{ state: 'CA' }, { state: 'WI'}] +[{ state: "MN" }, { state: "CA" }, { state: "WI" }].filter( + sift({ state: { $ne: "MN" } }), +); +``` + +### \$mod + +Modulus: + +```javascript +// filtered: [300, 600] +[100, 200, 300, 400, 500, 600].filter(sift({ $mod: [3, 0] })); +``` + +### \$all + +values must match **everything** in array: + +```javascript +// filtered: [ { tags: ['books','programming','travel' ]} ] +[ + { tags: ["books", "programming", "travel"] }, + { tags: ["travel", "cooking"] }, +].filter(sift({ tags: { $all: ["books", "programming"] } })); +``` + +### \$and + +ability to use an array of expressions. All expressions must test true. + +```javascript +// filtered: [ { name: 'Craig', state: 'MN' }] + +[ + { name: "Craig", state: "MN" }, + { name: "Tim", state: "MN" }, + { name: "Joe", state: "CA" }, +].filter(sift({ $and: [{ name: "Craig" }, { state: "MN" }] })); +``` + +### \$or + +OR array of expressions. + +```javascript +// filtered: [ { name: 'Craig', state: 'MN' }, { name: 'Tim', state: 'MN' }] +[ + { name: "Craig", state: "MN" }, + { name: "Tim", state: "MN" }, + { name: "Joe", state: "CA" }, +].filter(sift({ $or: [{ name: "Craig" }, { state: "MN" }] })); +``` + +### \$nor + +opposite of or: + +```javascript +// filtered: [{ name: 'Joe', state: 'CA' }] +[ + { name: "Craig", state: "MN" }, + { name: "Tim", state: "MN" }, + { name: "Joe", state: "CA" }, +].filter(sift({ $nor: [{ name: "Craig" }, { state: "MN" }] })); +``` + +### \$size + +Matches an array - must match given size: + +```javascript +// filtered: ['food','cooking'] +[{ tags: ["food", "cooking"] }, { tags: ["traveling"] }].filter( + sift({ tags: { $size: 2 } }), +); +``` + +### \$type + +Matches a values based on the type + +```javascript +[new Date(), 4342, "hello world"].filter(sift({ $type: Date })); // returns single date +[new Date(), 4342, "hello world"].filter(sift({ $type: String })); // returns ['hello world'] +``` + +### \$regex + +Matches values based on the given regular expression + +```javascript +["frank", "fred", "sam", "frost"].filter( + sift({ $regex: /^f/i, $nin: ["frank"] }), +); // ["fred", "frost"] +["frank", "fred", "sam", "frost"].filter( + sift({ $regex: "^f", $options: "i", $nin: ["frank"] }), +); // ["fred", "frost"] +``` + +### \$where + +Matches based on some javascript comparison + +```javascript +[{ name: "frank" }, { name: "joe" }].filter( + sift({ $where: "this.name === 'frank'" }), +); // ["frank"] +[{ name: "frank" }, { name: "joe" }].filter( + sift({ + $where: function () { + return this.name === "frank"; + }, + }), +); // ["frank"] +``` + +### \$elemMatch + +Matches elements of array + +```javascript +var bills = [ + { + month: "july", + casts: [ + { + id: 1, + value: 200, + }, + { + id: 2, + value: 1000, + }, + ], + }, + { + month: "august", + casts: [ + { + id: 3, + value: 1000, + }, + { + id: 4, + value: 4000, + }, + ], + }, +]; + +var result = bills.filter( + sift({ + casts: { + $elemMatch: { + value: { $gt: 1000 }, + }, + }, + }), +); // {month:'august', casts:[{id:3, value: 1000},{id: 4, value: 4000}]} +``` + +### \$not + +Not expression: + +```javascript +["craig", "tim", "jake"].filter(sift({ $not: { $in: ["craig", "tim"] } })); // ['jake'] +["craig", "tim", "jake"].filter(sift({ $not: { $size: 5 } })); // ['tim','jake'] +``` + +### Date comparison + +Mongodb allows you to do date comparisons like so: + +```javascript +db.collection.find({ createdAt: { $gte: "2018-03-22T06:00:00Z" } }); +``` + +In Sift, you'll need to specify a Date object: + +```javascript +collection.find( + sift({ createdAt: { $gte: new Date("2018-03-22T06:00:00Z") } }), +); +``` + +## Custom behavior + +Sift works like MongoDB out of the box, but you're also able to modify the behavior to suite your needs. + +#### Custom operations + +You can register your own custom operations. Here's an example: + +```javascript +import sift, { createEqualsOperation } from "sift"; + +var filter = sift( + { + $customMod: 2, + }, + { + operations: { + $customMod(params, ownerQuery, options) { + return createEqualsOperation( + (value) => value % params !== 0, + ownerQuery, + options, + ); + }, + }, + }, +); + +[1, 2, 3, 4, 5].filter(filter); // [1, 3, 5] +``` + +#### Omitting built-in operations + +You can create a filter function that omits the built-in operations like so: + +```javascript +import { createQueryTester, $in, $all, $nin, $lt } from "sift"; +const test = createQueryTester( + { + $eq: 10, + }, + { operations: { $in, $all, $nin, $lt } }, +); + +[1, 2, 3, 4, 10].filter(test); +``` + +For bundlers like `Webpack` and `Rollup`, operations that aren't used are omitted from application bundles via tree-shaking. diff --git a/week-3/04-course-app-hard/node_modules/sift/es/index.js b/week-3/04-course-app-hard/node_modules/sift/es/index.js new file mode 100644 index 000000000..8e0e9f067 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/es/index.js @@ -0,0 +1,632 @@ +const typeChecker = (type) => { + const typeString = "[object " + type + "]"; + return function (value) { + return getClassName(value) === typeString; + }; +}; +const getClassName = (value) => Object.prototype.toString.call(value); +const comparable = (value) => { + if (value instanceof Date) { + return value.getTime(); + } + else if (isArray(value)) { + return value.map(comparable); + } + else if (value && typeof value.toJSON === "function") { + return value.toJSON(); + } + return value; +}; +const coercePotentiallyNull = (value) => value == null ? null : value; +const isArray = typeChecker("Array"); +const isObject = typeChecker("Object"); +const isFunction = typeChecker("Function"); +const isProperty = (item, key) => { + return item.hasOwnProperty(key) && !isFunction(item[key]); +}; +const isVanillaObject = (value) => { + return (value && + (value.constructor === Object || + value.constructor === Array || + value.constructor.toString() === "function Object() { [native code] }" || + value.constructor.toString() === "function Array() { [native code] }") && + !value.toJSON); +}; +const equals = (a, b) => { + if (a == null && a == b) { + return true; + } + if (a === b) { + return true; + } + if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) { + return false; + } + if (isArray(a)) { + if (a.length !== b.length) { + return false; + } + for (let i = 0, { length } = a; i < length; i++) { + if (!equals(a[i], b[i])) + return false; + } + return true; + } + else if (isObject(a)) { + if (Object.keys(a).length !== Object.keys(b).length) { + return false; + } + for (const key in a) { + if (!equals(a[key], b[key])) + return false; + } + return true; + } + return false; +}; + +/** + * Walks through each value given the context - used for nested operations. E.g: + * { "person.address": { $eq: "blarg" }} + */ +const walkKeyPathValues = (item, keyPath, next, depth, key, owner) => { + const currentKey = keyPath[depth]; + // if array, then try matching. Might fall through for cases like: + // { $eq: [1, 2, 3] }, [ 1, 2, 3 ]. + if (isArray(item) && + isNaN(Number(currentKey)) && + !isProperty(item, currentKey)) { + for (let i = 0, { length } = item; i < length; i++) { + // if FALSE is returned, then terminate walker. For operations, this simply + // means that the search critera was met. + if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) { + return false; + } + } + } + if (depth === keyPath.length || item == null) { + return next(item, key, owner, depth === 0, depth === keyPath.length); + } + return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item); +}; +class BaseOperation { + constructor(params, owneryQuery, options, name) { + this.params = params; + this.owneryQuery = owneryQuery; + this.options = options; + this.name = name; + this.init(); + } + init() { } + reset() { + this.done = false; + this.keep = false; + } +} +class GroupOperation extends BaseOperation { + constructor(params, owneryQuery, options, children) { + super(params, owneryQuery, options); + this.children = children; + } + /** + */ + reset() { + this.keep = false; + this.done = false; + for (let i = 0, { length } = this.children; i < length; i++) { + this.children[i].reset(); + } + } + /** + */ + childrenNext(item, key, owner, root, leaf) { + let done = true; + let keep = true; + for (let i = 0, { length } = this.children; i < length; i++) { + const childOperation = this.children[i]; + if (!childOperation.done) { + childOperation.next(item, key, owner, root, leaf); + } + if (!childOperation.keep) { + keep = false; + } + if (childOperation.done) { + if (!childOperation.keep) { + break; + } + } + else { + done = false; + } + } + this.done = done; + this.keep = keep; + } +} +class NamedGroupOperation extends GroupOperation { + constructor(params, owneryQuery, options, children, name) { + super(params, owneryQuery, options, children); + this.name = name; + } +} +class QueryOperation extends GroupOperation { + constructor() { + super(...arguments); + this.propop = true; + } + /** + */ + next(item, key, parent, root) { + this.childrenNext(item, key, parent, root); + } +} +class NestedOperation extends GroupOperation { + constructor(keyPath, params, owneryQuery, options, children) { + super(params, owneryQuery, options, children); + this.keyPath = keyPath; + this.propop = true; + /** + */ + this._nextNestedValue = (value, key, owner, root, leaf) => { + this.childrenNext(value, key, owner, root, leaf); + return !this.done; + }; + } + /** + */ + next(item, key, parent) { + walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent); + } +} +const createTester = (a, compare) => { + if (a instanceof Function) { + return a; + } + if (a instanceof RegExp) { + return (b) => { + const result = typeof b === "string" && a.test(b); + a.lastIndex = 0; + return result; + }; + } + const comparableA = comparable(a); + return (b) => compare(comparableA, comparable(b)); +}; +class EqualsOperation extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + init() { + this._test = createTester(this.params, this.options.compare); + } + next(item, key, parent) { + if (!Array.isArray(parent) || parent.hasOwnProperty(key)) { + if (this._test(item, key, parent)) { + this.done = true; + this.keep = true; + } + } + } +} +const createEqualsOperation = (params, owneryQuery, options) => new EqualsOperation(params, owneryQuery, options); +const numericalOperationCreator = (createNumericalOperation) => (params, owneryQuery, options, name) => { + return createNumericalOperation(params, owneryQuery, options, name); +}; +const numericalOperation = (createTester) => numericalOperationCreator((params, owneryQuery, options, name) => { + const typeofParams = typeof comparable(params); + const test = createTester(params); + return new EqualsOperation((b) => { + const actualValue = coercePotentiallyNull(b); + return (typeof comparable(actualValue) === typeofParams && test(actualValue)); + }, owneryQuery, options, name); +}); +const createNamedOperation = (name, params, parentQuery, options) => { + const operationCreator = options.operations[name]; + if (!operationCreator) { + throwUnsupportedOperation(name); + } + return operationCreator(params, parentQuery, options, name); +}; +const throwUnsupportedOperation = (name) => { + throw new Error(`Unsupported operation: ${name}`); +}; +const containsOperation = (query, options) => { + for (const key in query) { + if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$") + return true; + } + return false; +}; +const createNestedOperation = (keyPath, nestedQuery, parentKey, owneryQuery, options) => { + if (containsOperation(nestedQuery, options)) { + const [selfOperations, nestedOperations] = createQueryOperations(nestedQuery, parentKey, options); + if (nestedOperations.length) { + throw new Error(`Property queries must contain only operations, or exact objects.`); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [ + new EqualsOperation(nestedQuery, owneryQuery, options), + ]); +}; +const createQueryOperation = (query, owneryQuery = null, { compare, operations } = {}) => { + const options = { + compare: compare || equals, + operations: Object.assign({}, operations || {}), + }; + const [selfOperations, nestedOperations] = createQueryOperations(query, null, options); + const ops = []; + if (selfOperations.length) { + ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations)); + } + ops.push(...nestedOperations); + if (ops.length === 1) { + return ops[0]; + } + return new QueryOperation(query, owneryQuery, options, ops); +}; +const createQueryOperations = (query, parentKey, options) => { + const selfOperations = []; + const nestedOperations = []; + if (!isVanillaObject(query)) { + selfOperations.push(new EqualsOperation(query, query, options)); + return [selfOperations, nestedOperations]; + } + for (const key in query) { + if (options.operations.hasOwnProperty(key)) { + const op = createNamedOperation(key, query[key], query, options); + if (op) { + if (!op.propop && parentKey && !options.operations[parentKey]) { + throw new Error(`Malformed query. ${key} cannot be matched against property.`); + } + } + // probably just a flag for another operation (like $options) + if (op != null) { + selfOperations.push(op); + } + } + else if (key.charAt(0) === "$") { + throwUnsupportedOperation(key); + } + else { + nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options)); + } + } + return [selfOperations, nestedOperations]; +}; +const createOperationTester = (operation) => (item, key, owner) => { + operation.reset(); + operation.next(item, key, owner); + return operation.keep; +}; +const createQueryTester = (query, options = {}) => { + return createOperationTester(createQueryOperation(query, null, options)); +}; + +class $Ne extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + init() { + this._test = createTester(this.params, this.options.compare); + } + reset() { + super.reset(); + this.keep = true; + } + next(item) { + if (this._test(item)) { + this.done = true; + this.keep = false; + } + } +} +// https://docs.mongodb.com/manual/reference/operator/query/elemMatch/ +class $ElemMatch extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + init() { + if (!this.params || typeof this.params !== "object") { + throw new Error(`Malformed query. $elemMatch must by an object.`); + } + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + } + reset() { + super.reset(); + this._queryOperation.reset(); + } + next(item) { + if (isArray(item)) { + for (let i = 0, { length } = item; i < length; i++) { + // reset query operation since item being tested needs to pass _all_ query + // operations for it to be a success + this._queryOperation.reset(); + const child = item[i]; + this._queryOperation.next(child, i, item, false); + this.keep = this.keep || this._queryOperation.keep; + } + this.done = true; + } + else { + this.done = false; + this.keep = false; + } + } +} +class $Not extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + init() { + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + } + reset() { + super.reset(); + this._queryOperation.reset(); + } + next(item, key, owner, root) { + this._queryOperation.next(item, key, owner, root); + this.done = this._queryOperation.done; + this.keep = !this._queryOperation.keep; + } +} +class $Size extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + init() { } + next(item) { + if (isArray(item) && item.length === this.params) { + this.done = true; + this.keep = true; + } + // if (parent && parent.length === this.params) { + // this.done = true; + // this.keep = true; + // } + } +} +const assertGroupNotEmpty = (values) => { + if (values.length === 0) { + throw new Error(`$and/$or/$nor must be a nonempty array`); + } +}; +class $Or extends BaseOperation { + constructor() { + super(...arguments); + this.propop = false; + } + init() { + assertGroupNotEmpty(this.params); + this._ops = this.params.map((op) => createQueryOperation(op, null, this.options)); + } + reset() { + this.done = false; + this.keep = false; + for (let i = 0, { length } = this._ops; i < length; i++) { + this._ops[i].reset(); + } + } + next(item, key, owner) { + let done = false; + let success = false; + for (let i = 0, { length } = this._ops; i < length; i++) { + const op = this._ops[i]; + op.next(item, key, owner); + if (op.keep) { + done = true; + success = op.keep; + break; + } + } + this.keep = success; + this.done = done; + } +} +class $Nor extends $Or { + constructor() { + super(...arguments); + this.propop = false; + } + next(item, key, owner) { + super.next(item, key, owner); + this.keep = !this.keep; + } +} +class $In extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + init() { + const params = Array.isArray(this.params) ? this.params : [this.params]; + this._testers = params.map((value) => { + if (containsOperation(value, this.options)) { + throw new Error(`cannot nest $ under ${this.name.toLowerCase()}`); + } + return createTester(value, this.options.compare); + }); + } + next(item, key, owner) { + let done = false; + let success = false; + for (let i = 0, { length } = this._testers; i < length; i++) { + const test = this._testers[i]; + if (test(item)) { + done = true; + success = true; + break; + } + } + this.keep = success; + this.done = done; + } +} +class $Nin extends BaseOperation { + constructor(params, ownerQuery, options, name) { + super(params, ownerQuery, options, name); + this.propop = true; + this._in = new $In(params, ownerQuery, options, name); + } + next(item, key, owner, root) { + this._in.next(item, key, owner); + if (isArray(owner) && !root) { + if (this._in.keep) { + this.keep = false; + this.done = true; + } + else if (key == owner.length - 1) { + this.keep = true; + this.done = true; + } + } + else { + this.keep = !this._in.keep; + this.done = true; + } + } + reset() { + super.reset(); + this._in.reset(); + } +} +class $Exists extends BaseOperation { + constructor() { + super(...arguments); + this.propop = true; + } + next(item, key, owner, root, leaf) { + if (!leaf) { + this.done = true; + this.keep = !this.params; + } + else if (owner.hasOwnProperty(key) === this.params) { + this.done = true; + this.keep = true; + } + } +} +class $And extends NamedGroupOperation { + constructor(params, owneryQuery, options, name) { + super(params, owneryQuery, options, params.map((query) => createQueryOperation(query, owneryQuery, options)), name); + this.propop = false; + assertGroupNotEmpty(params); + } + next(item, key, owner, root) { + this.childrenNext(item, key, owner, root); + } +} +class $All extends NamedGroupOperation { + constructor(params, owneryQuery, options, name) { + super(params, owneryQuery, options, params.map((query) => createQueryOperation(query, owneryQuery, options)), name); + this.propop = true; + } + next(item, key, owner, root) { + this.childrenNext(item, key, owner, root); + } +} +const $eq = (params, owneryQuery, options) => new EqualsOperation(params, owneryQuery, options); +const $ne = (params, owneryQuery, options, name) => new $Ne(params, owneryQuery, options, name); +const $or = (params, owneryQuery, options, name) => new $Or(params, owneryQuery, options, name); +const $nor = (params, owneryQuery, options, name) => new $Nor(params, owneryQuery, options, name); +const $elemMatch = (params, owneryQuery, options, name) => new $ElemMatch(params, owneryQuery, options, name); +const $nin = (params, owneryQuery, options, name) => new $Nin(params, owneryQuery, options, name); +const $in = (params, owneryQuery, options, name) => { + return new $In(params, owneryQuery, options, name); +}; +const $lt = numericalOperation((params) => (b) => { + return b != null && b < params; +}); +const $lte = numericalOperation((params) => (b) => { + return b === params || b <= params; +}); +const $gt = numericalOperation((params) => (b) => { + return b != null && b > params; +}); +const $gte = numericalOperation((params) => (b) => { + return b === params || b >= params; +}); +const $mod = ([mod, equalsValue], owneryQuery, options) => new EqualsOperation((b) => comparable(b) % mod === equalsValue, owneryQuery, options); +const $exists = (params, owneryQuery, options, name) => new $Exists(params, owneryQuery, options, name); +const $regex = (pattern, owneryQuery, options) => new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options); +const $not = (params, owneryQuery, options, name) => new $Not(params, owneryQuery, options, name); +const typeAliases = { + number: (v) => typeof v === "number", + string: (v) => typeof v === "string", + bool: (v) => typeof v === "boolean", + array: (v) => Array.isArray(v), + null: (v) => v === null, + timestamp: (v) => v instanceof Date, +}; +const $type = (clazz, owneryQuery, options) => new EqualsOperation((b) => { + if (typeof clazz === "string") { + if (!typeAliases[clazz]) { + throw new Error(`Type alias does not exist`); + } + return typeAliases[clazz](b); + } + return b != null ? b instanceof clazz || b.constructor === clazz : false; +}, owneryQuery, options); +const $and = (params, ownerQuery, options, name) => new $And(params, ownerQuery, options, name); +const $all = (params, ownerQuery, options, name) => new $All(params, ownerQuery, options, name); +const $size = (params, ownerQuery, options) => new $Size(params, ownerQuery, options, "$size"); +const $options = () => null; +const $where = (params, ownerQuery, options) => { + let test; + if (isFunction(params)) { + test = params; + } + else if (!process.env.CSP_ENABLED) { + test = new Function("obj", "return " + params); + } + else { + throw new Error(`In CSP mode, sift does not support strings in "$where" condition`); + } + return new EqualsOperation((b) => test.bind(b)(b), ownerQuery, options); +}; + +var defaultOperations = /*#__PURE__*/Object.freeze({ + __proto__: null, + $Size: $Size, + $all: $all, + $and: $and, + $elemMatch: $elemMatch, + $eq: $eq, + $exists: $exists, + $gt: $gt, + $gte: $gte, + $in: $in, + $lt: $lt, + $lte: $lte, + $mod: $mod, + $ne: $ne, + $nin: $nin, + $nor: $nor, + $not: $not, + $options: $options, + $or: $or, + $regex: $regex, + $size: $size, + $type: $type, + $where: $where +}); + +const createDefaultQueryOperation = (query, ownerQuery, { compare, operations } = {}) => { + return createQueryOperation(query, ownerQuery, { + compare, + operations: Object.assign({}, defaultOperations, operations || {}), + }); +}; +const createDefaultQueryTester = (query, options = {}) => { + const op = createDefaultQueryOperation(query, null, options); + return createOperationTester(op); +}; + +export { $Size, $all, $and, $elemMatch, $eq, $exists, $gt, $gte, $in, $lt, $lte, $mod, $ne, $nin, $nor, $not, $options, $or, $regex, $size, $type, $where, EqualsOperation, createDefaultQueryOperation, createEqualsOperation, createOperationTester, createQueryOperation, createQueryTester, createDefaultQueryTester as default }; +//# sourceMappingURL=index.js.map diff --git a/week-3/04-course-app-hard/node_modules/sift/es/index.js.map b/week-3/04-course-app-hard/node_modules/sift/es/index.js.map new file mode 100644 index 000000000..8a9ff1d4d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/es/index.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/sift/es5m/index.js b/week-3/04-course-app-hard/node_modules/sift/es5m/index.js new file mode 100644 index 000000000..3136cbfc3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/es5m/index.js @@ -0,0 +1,743 @@ +/****************************************************************************** +Copyright (c) Microsoft Corporation. + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM +LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR +OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR +PERFORMANCE OF THIS SOFTWARE. +***************************************************************************** */ +/* global Reflect, Promise, SuppressedError, Symbol */ + +var extendStatics = function(d, b) { + extendStatics = Object.setPrototypeOf || + ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || + function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; + return extendStatics(d, b); +}; + +function __extends(d, b) { + if (typeof b !== "function" && b !== null) + throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); + extendStatics(d, b); + function __() { this.constructor = d; } + d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); +} + +typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) { + var e = new Error(message); + return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e; +}; + +var typeChecker = function (type) { + var typeString = "[object " + type + "]"; + return function (value) { + return getClassName(value) === typeString; + }; +}; +var getClassName = function (value) { return Object.prototype.toString.call(value); }; +var comparable = function (value) { + if (value instanceof Date) { + return value.getTime(); + } + else if (isArray(value)) { + return value.map(comparable); + } + else if (value && typeof value.toJSON === "function") { + return value.toJSON(); + } + return value; +}; +var coercePotentiallyNull = function (value) { + return value == null ? null : value; +}; +var isArray = typeChecker("Array"); +var isObject = typeChecker("Object"); +var isFunction = typeChecker("Function"); +var isProperty = function (item, key) { + return item.hasOwnProperty(key) && !isFunction(item[key]); +}; +var isVanillaObject = function (value) { + return (value && + (value.constructor === Object || + value.constructor === Array || + value.constructor.toString() === "function Object() { [native code] }" || + value.constructor.toString() === "function Array() { [native code] }") && + !value.toJSON); +}; +var equals = function (a, b) { + if (a == null && a == b) { + return true; + } + if (a === b) { + return true; + } + if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) { + return false; + } + if (isArray(a)) { + if (a.length !== b.length) { + return false; + } + for (var i = 0, length_1 = a.length; i < length_1; i++) { + if (!equals(a[i], b[i])) + return false; + } + return true; + } + else if (isObject(a)) { + if (Object.keys(a).length !== Object.keys(b).length) { + return false; + } + for (var key in a) { + if (!equals(a[key], b[key])) + return false; + } + return true; + } + return false; +}; + +/** + * Walks through each value given the context - used for nested operations. E.g: + * { "person.address": { $eq: "blarg" }} + */ +var walkKeyPathValues = function (item, keyPath, next, depth, key, owner) { + var currentKey = keyPath[depth]; + // if array, then try matching. Might fall through for cases like: + // { $eq: [1, 2, 3] }, [ 1, 2, 3 ]. + if (isArray(item) && + isNaN(Number(currentKey)) && + !isProperty(item, currentKey)) { + for (var i = 0, length_1 = item.length; i < length_1; i++) { + // if FALSE is returned, then terminate walker. For operations, this simply + // means that the search critera was met. + if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) { + return false; + } + } + } + if (depth === keyPath.length || item == null) { + return next(item, key, owner, depth === 0, depth === keyPath.length); + } + return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item); +}; +var BaseOperation = /** @class */ (function () { + function BaseOperation(params, owneryQuery, options, name) { + this.params = params; + this.owneryQuery = owneryQuery; + this.options = options; + this.name = name; + this.init(); + } + BaseOperation.prototype.init = function () { }; + BaseOperation.prototype.reset = function () { + this.done = false; + this.keep = false; + }; + return BaseOperation; +}()); +var GroupOperation = /** @class */ (function (_super) { + __extends(GroupOperation, _super); + function GroupOperation(params, owneryQuery, options, children) { + var _this = _super.call(this, params, owneryQuery, options) || this; + _this.children = children; + return _this; + } + /** + */ + GroupOperation.prototype.reset = function () { + this.keep = false; + this.done = false; + for (var i = 0, length_2 = this.children.length; i < length_2; i++) { + this.children[i].reset(); + } + }; + /** + */ + GroupOperation.prototype.childrenNext = function (item, key, owner, root, leaf) { + var done = true; + var keep = true; + for (var i = 0, length_3 = this.children.length; i < length_3; i++) { + var childOperation = this.children[i]; + if (!childOperation.done) { + childOperation.next(item, key, owner, root, leaf); + } + if (!childOperation.keep) { + keep = false; + } + if (childOperation.done) { + if (!childOperation.keep) { + break; + } + } + else { + done = false; + } + } + this.done = done; + this.keep = keep; + }; + return GroupOperation; +}(BaseOperation)); +var NamedGroupOperation = /** @class */ (function (_super) { + __extends(NamedGroupOperation, _super); + function NamedGroupOperation(params, owneryQuery, options, children, name) { + var _this = _super.call(this, params, owneryQuery, options, children) || this; + _this.name = name; + return _this; + } + return NamedGroupOperation; +}(GroupOperation)); +var QueryOperation = /** @class */ (function (_super) { + __extends(QueryOperation, _super); + function QueryOperation() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + /** + */ + QueryOperation.prototype.next = function (item, key, parent, root) { + this.childrenNext(item, key, parent, root); + }; + return QueryOperation; +}(GroupOperation)); +var NestedOperation = /** @class */ (function (_super) { + __extends(NestedOperation, _super); + function NestedOperation(keyPath, params, owneryQuery, options, children) { + var _this = _super.call(this, params, owneryQuery, options, children) || this; + _this.keyPath = keyPath; + _this.propop = true; + /** + */ + _this._nextNestedValue = function (value, key, owner, root, leaf) { + _this.childrenNext(value, key, owner, root, leaf); + return !_this.done; + }; + return _this; + } + /** + */ + NestedOperation.prototype.next = function (item, key, parent) { + walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent); + }; + return NestedOperation; +}(GroupOperation)); +var createTester = function (a, compare) { + if (a instanceof Function) { + return a; + } + if (a instanceof RegExp) { + return function (b) { + var result = typeof b === "string" && a.test(b); + a.lastIndex = 0; + return result; + }; + } + var comparableA = comparable(a); + return function (b) { return compare(comparableA, comparable(b)); }; +}; +var EqualsOperation = /** @class */ (function (_super) { + __extends(EqualsOperation, _super); + function EqualsOperation() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + EqualsOperation.prototype.init = function () { + this._test = createTester(this.params, this.options.compare); + }; + EqualsOperation.prototype.next = function (item, key, parent) { + if (!Array.isArray(parent) || parent.hasOwnProperty(key)) { + if (this._test(item, key, parent)) { + this.done = true; + this.keep = true; + } + } + }; + return EqualsOperation; +}(BaseOperation)); +var createEqualsOperation = function (params, owneryQuery, options) { return new EqualsOperation(params, owneryQuery, options); }; +var numericalOperationCreator = function (createNumericalOperation) { + return function (params, owneryQuery, options, name) { + return createNumericalOperation(params, owneryQuery, options, name); + }; +}; +var numericalOperation = function (createTester) { + return numericalOperationCreator(function (params, owneryQuery, options, name) { + var typeofParams = typeof comparable(params); + var test = createTester(params); + return new EqualsOperation(function (b) { + var actualValue = coercePotentiallyNull(b); + return (typeof comparable(actualValue) === typeofParams && test(actualValue)); + }, owneryQuery, options, name); + }); +}; +var createNamedOperation = function (name, params, parentQuery, options) { + var operationCreator = options.operations[name]; + if (!operationCreator) { + throwUnsupportedOperation(name); + } + return operationCreator(params, parentQuery, options, name); +}; +var throwUnsupportedOperation = function (name) { + throw new Error("Unsupported operation: ".concat(name)); +}; +var containsOperation = function (query, options) { + for (var key in query) { + if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$") + return true; + } + return false; +}; +var createNestedOperation = function (keyPath, nestedQuery, parentKey, owneryQuery, options) { + if (containsOperation(nestedQuery, options)) { + var _a = createQueryOperations(nestedQuery, parentKey, options), selfOperations = _a[0], nestedOperations = _a[1]; + if (nestedOperations.length) { + throw new Error("Property queries must contain only operations, or exact objects."); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [ + new EqualsOperation(nestedQuery, owneryQuery, options), + ]); +}; +var createQueryOperation = function (query, owneryQuery, _a) { + if (owneryQuery === void 0) { owneryQuery = null; } + var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations; + var options = { + compare: compare || equals, + operations: Object.assign({}, operations || {}), + }; + var _c = createQueryOperations(query, null, options), selfOperations = _c[0], nestedOperations = _c[1]; + var ops = []; + if (selfOperations.length) { + ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations)); + } + ops.push.apply(ops, nestedOperations); + if (ops.length === 1) { + return ops[0]; + } + return new QueryOperation(query, owneryQuery, options, ops); +}; +var createQueryOperations = function (query, parentKey, options) { + var selfOperations = []; + var nestedOperations = []; + if (!isVanillaObject(query)) { + selfOperations.push(new EqualsOperation(query, query, options)); + return [selfOperations, nestedOperations]; + } + for (var key in query) { + if (options.operations.hasOwnProperty(key)) { + var op = createNamedOperation(key, query[key], query, options); + if (op) { + if (!op.propop && parentKey && !options.operations[parentKey]) { + throw new Error("Malformed query. ".concat(key, " cannot be matched against property.")); + } + } + // probably just a flag for another operation (like $options) + if (op != null) { + selfOperations.push(op); + } + } + else if (key.charAt(0) === "$") { + throwUnsupportedOperation(key); + } + else { + nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options)); + } + } + return [selfOperations, nestedOperations]; +}; +var createOperationTester = function (operation) { + return function (item, key, owner) { + operation.reset(); + operation.next(item, key, owner); + return operation.keep; + }; +}; +var createQueryTester = function (query, options) { + if (options === void 0) { options = {}; } + return createOperationTester(createQueryOperation(query, null, options)); +}; + +var $Ne = /** @class */ (function (_super) { + __extends($Ne, _super); + function $Ne() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Ne.prototype.init = function () { + this._test = createTester(this.params, this.options.compare); + }; + $Ne.prototype.reset = function () { + _super.prototype.reset.call(this); + this.keep = true; + }; + $Ne.prototype.next = function (item) { + if (this._test(item)) { + this.done = true; + this.keep = false; + } + }; + return $Ne; +}(BaseOperation)); +// https://docs.mongodb.com/manual/reference/operator/query/elemMatch/ +var $ElemMatch = /** @class */ (function (_super) { + __extends($ElemMatch, _super); + function $ElemMatch() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $ElemMatch.prototype.init = function () { + if (!this.params || typeof this.params !== "object") { + throw new Error("Malformed query. $elemMatch must by an object."); + } + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + }; + $ElemMatch.prototype.reset = function () { + _super.prototype.reset.call(this); + this._queryOperation.reset(); + }; + $ElemMatch.prototype.next = function (item) { + if (isArray(item)) { + for (var i = 0, length_1 = item.length; i < length_1; i++) { + // reset query operation since item being tested needs to pass _all_ query + // operations for it to be a success + this._queryOperation.reset(); + var child = item[i]; + this._queryOperation.next(child, i, item, false); + this.keep = this.keep || this._queryOperation.keep; + } + this.done = true; + } + else { + this.done = false; + this.keep = false; + } + }; + return $ElemMatch; +}(BaseOperation)); +var $Not = /** @class */ (function (_super) { + __extends($Not, _super); + function $Not() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Not.prototype.init = function () { + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + }; + $Not.prototype.reset = function () { + _super.prototype.reset.call(this); + this._queryOperation.reset(); + }; + $Not.prototype.next = function (item, key, owner, root) { + this._queryOperation.next(item, key, owner, root); + this.done = this._queryOperation.done; + this.keep = !this._queryOperation.keep; + }; + return $Not; +}(BaseOperation)); +var $Size = /** @class */ (function (_super) { + __extends($Size, _super); + function $Size() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Size.prototype.init = function () { }; + $Size.prototype.next = function (item) { + if (isArray(item) && item.length === this.params) { + this.done = true; + this.keep = true; + } + // if (parent && parent.length === this.params) { + // this.done = true; + // this.keep = true; + // } + }; + return $Size; +}(BaseOperation)); +var assertGroupNotEmpty = function (values) { + if (values.length === 0) { + throw new Error("$and/$or/$nor must be a nonempty array"); + } +}; +var $Or = /** @class */ (function (_super) { + __extends($Or, _super); + function $Or() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = false; + return _this; + } + $Or.prototype.init = function () { + var _this = this; + assertGroupNotEmpty(this.params); + this._ops = this.params.map(function (op) { + return createQueryOperation(op, null, _this.options); + }); + }; + $Or.prototype.reset = function () { + this.done = false; + this.keep = false; + for (var i = 0, length_2 = this._ops.length; i < length_2; i++) { + this._ops[i].reset(); + } + }; + $Or.prototype.next = function (item, key, owner) { + var done = false; + var success = false; + for (var i = 0, length_3 = this._ops.length; i < length_3; i++) { + var op = this._ops[i]; + op.next(item, key, owner); + if (op.keep) { + done = true; + success = op.keep; + break; + } + } + this.keep = success; + this.done = done; + }; + return $Or; +}(BaseOperation)); +var $Nor = /** @class */ (function (_super) { + __extends($Nor, _super); + function $Nor() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = false; + return _this; + } + $Nor.prototype.next = function (item, key, owner) { + _super.prototype.next.call(this, item, key, owner); + this.keep = !this.keep; + }; + return $Nor; +}($Or)); +var $In = /** @class */ (function (_super) { + __extends($In, _super); + function $In() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $In.prototype.init = function () { + var _this = this; + var params = Array.isArray(this.params) ? this.params : [this.params]; + this._testers = params.map(function (value) { + if (containsOperation(value, _this.options)) { + throw new Error("cannot nest $ under ".concat(_this.name.toLowerCase())); + } + return createTester(value, _this.options.compare); + }); + }; + $In.prototype.next = function (item, key, owner) { + var done = false; + var success = false; + for (var i = 0, length_4 = this._testers.length; i < length_4; i++) { + var test = this._testers[i]; + if (test(item)) { + done = true; + success = true; + break; + } + } + this.keep = success; + this.done = done; + }; + return $In; +}(BaseOperation)); +var $Nin = /** @class */ (function (_super) { + __extends($Nin, _super); + function $Nin(params, ownerQuery, options, name) { + var _this = _super.call(this, params, ownerQuery, options, name) || this; + _this.propop = true; + _this._in = new $In(params, ownerQuery, options, name); + return _this; + } + $Nin.prototype.next = function (item, key, owner, root) { + this._in.next(item, key, owner); + if (isArray(owner) && !root) { + if (this._in.keep) { + this.keep = false; + this.done = true; + } + else if (key == owner.length - 1) { + this.keep = true; + this.done = true; + } + } + else { + this.keep = !this._in.keep; + this.done = true; + } + }; + $Nin.prototype.reset = function () { + _super.prototype.reset.call(this); + this._in.reset(); + }; + return $Nin; +}(BaseOperation)); +var $Exists = /** @class */ (function (_super) { + __extends($Exists, _super); + function $Exists() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Exists.prototype.next = function (item, key, owner, root, leaf) { + if (!leaf) { + this.done = true; + this.keep = !this.params; + } + else if (owner.hasOwnProperty(key) === this.params) { + this.done = true; + this.keep = true; + } + }; + return $Exists; +}(BaseOperation)); +var $And = /** @class */ (function (_super) { + __extends($And, _super); + function $And(params, owneryQuery, options, name) { + var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this; + _this.propop = false; + assertGroupNotEmpty(params); + return _this; + } + $And.prototype.next = function (item, key, owner, root) { + this.childrenNext(item, key, owner, root); + }; + return $And; +}(NamedGroupOperation)); +var $All = /** @class */ (function (_super) { + __extends($All, _super); + function $All(params, owneryQuery, options, name) { + var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this; + _this.propop = true; + return _this; + } + $All.prototype.next = function (item, key, owner, root) { + this.childrenNext(item, key, owner, root); + }; + return $All; +}(NamedGroupOperation)); +var $eq = function (params, owneryQuery, options) { + return new EqualsOperation(params, owneryQuery, options); +}; +var $ne = function (params, owneryQuery, options, name) { return new $Ne(params, owneryQuery, options, name); }; +var $or = function (params, owneryQuery, options, name) { return new $Or(params, owneryQuery, options, name); }; +var $nor = function (params, owneryQuery, options, name) { return new $Nor(params, owneryQuery, options, name); }; +var $elemMatch = function (params, owneryQuery, options, name) { return new $ElemMatch(params, owneryQuery, options, name); }; +var $nin = function (params, owneryQuery, options, name) { return new $Nin(params, owneryQuery, options, name); }; +var $in = function (params, owneryQuery, options, name) { + return new $In(params, owneryQuery, options, name); +}; +var $lt = numericalOperation(function (params) { return function (b) { + return b != null && b < params; +}; }); +var $lte = numericalOperation(function (params) { return function (b) { + return b === params || b <= params; +}; }); +var $gt = numericalOperation(function (params) { return function (b) { + return b != null && b > params; +}; }); +var $gte = numericalOperation(function (params) { return function (b) { + return b === params || b >= params; +}; }); +var $mod = function (_a, owneryQuery, options) { + var mod = _a[0], equalsValue = _a[1]; + return new EqualsOperation(function (b) { return comparable(b) % mod === equalsValue; }, owneryQuery, options); +}; +var $exists = function (params, owneryQuery, options, name) { return new $Exists(params, owneryQuery, options, name); }; +var $regex = function (pattern, owneryQuery, options) { + return new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options); +}; +var $not = function (params, owneryQuery, options, name) { return new $Not(params, owneryQuery, options, name); }; +var typeAliases = { + number: function (v) { return typeof v === "number"; }, + string: function (v) { return typeof v === "string"; }, + bool: function (v) { return typeof v === "boolean"; }, + array: function (v) { return Array.isArray(v); }, + null: function (v) { return v === null; }, + timestamp: function (v) { return v instanceof Date; }, +}; +var $type = function (clazz, owneryQuery, options) { + return new EqualsOperation(function (b) { + if (typeof clazz === "string") { + if (!typeAliases[clazz]) { + throw new Error("Type alias does not exist"); + } + return typeAliases[clazz](b); + } + return b != null ? b instanceof clazz || b.constructor === clazz : false; + }, owneryQuery, options); +}; +var $and = function (params, ownerQuery, options, name) { return new $And(params, ownerQuery, options, name); }; +var $all = function (params, ownerQuery, options, name) { return new $All(params, ownerQuery, options, name); }; +var $size = function (params, ownerQuery, options) { return new $Size(params, ownerQuery, options, "$size"); }; +var $options = function () { return null; }; +var $where = function (params, ownerQuery, options) { + var test; + if (isFunction(params)) { + test = params; + } + else if (!process.env.CSP_ENABLED) { + test = new Function("obj", "return " + params); + } + else { + throw new Error("In CSP mode, sift does not support strings in \"$where\" condition"); + } + return new EqualsOperation(function (b) { return test.bind(b)(b); }, ownerQuery, options); +}; + +var defaultOperations = /*#__PURE__*/Object.freeze({ + __proto__: null, + $Size: $Size, + $all: $all, + $and: $and, + $elemMatch: $elemMatch, + $eq: $eq, + $exists: $exists, + $gt: $gt, + $gte: $gte, + $in: $in, + $lt: $lt, + $lte: $lte, + $mod: $mod, + $ne: $ne, + $nin: $nin, + $nor: $nor, + $not: $not, + $options: $options, + $or: $or, + $regex: $regex, + $size: $size, + $type: $type, + $where: $where +}); + +var createDefaultQueryOperation = function (query, ownerQuery, _a) { + var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations; + return createQueryOperation(query, ownerQuery, { + compare: compare, + operations: Object.assign({}, defaultOperations, operations || {}), + }); +}; +var createDefaultQueryTester = function (query, options) { + if (options === void 0) { options = {}; } + var op = createDefaultQueryOperation(query, null, options); + return createOperationTester(op); +}; + +export { $Size, $all, $and, $elemMatch, $eq, $exists, $gt, $gte, $in, $lt, $lte, $mod, $ne, $nin, $nor, $not, $options, $or, $regex, $size, $type, $where, EqualsOperation, createDefaultQueryOperation, createEqualsOperation, createOperationTester, createQueryOperation, createQueryTester, createDefaultQueryTester as default }; +//# sourceMappingURL=index.js.map diff --git a/week-3/04-course-app-hard/node_modules/sift/es5m/index.js.map b/week-3/04-course-app-hard/node_modules/sift/es5m/index.js.map new file mode 100644 index 000000000..8523755e8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/es5m/index.js.map @@ -0,0 +1 @@ +{"version":3,"file":"index.js","sources":["../node_modules/tslib/tslib.es6.js","../src/utils.ts","../src/core.ts","../src/operations.ts","../src/index.ts"],"sourcesContent":["/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\r\n function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\r\n var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\r\n var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\r\n var descriptor = descriptorIn || (target ? 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(function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n var desc = Object.getOwnPropertyDescriptor(m, k);\r\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\r\n desc = { enumerable: true, get: function() { return m[k]; } };\r\n }\r\n Object.defineProperty(o, k2, desc);\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n}\r\n\r\nexport function __spreadArray(to, from, pack) {\r\n if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\r\n if (ar || !(i in from)) {\r\n if (!ar) ar = Array.prototype.slice.call(from, 0, i);\r\n ar[i] = from[i];\r\n }\r\n }\r\n return to.concat(ar || Array.prototype.slice.call(from));\r\n}\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n\r\nexport function __classPrivateFieldIn(state, receiver) {\r\n if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\r\n return typeof state === \"function\" ? receiver === state : state.has(receiver);\r\n}\r\n\r\nexport function __addDisposableResource(env, value, async) {\r\n if (value !== null && value !== void 0) {\r\n if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\r\n var dispose;\r\n if (async) {\r\n if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\r\n dispose = value[Symbol.asyncDispose];\r\n }\r\n if (dispose === void 0) {\r\n if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\r\n dispose = value[Symbol.dispose];\r\n }\r\n if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\r\n env.stack.push({ value: value, dispose: dispose, async: async });\r\n }\r\n else if (async) {\r\n env.stack.push({ async: true });\r\n }\r\n return value;\r\n}\r\n\r\nvar _SuppressedError = typeof SuppressedError === \"function\" ? 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/sift/index.d.ts b/week-3/04-course-app-hard/node_modules/sift/index.d.ts new file mode 100644 index 000000000..2b8257109 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/index.d.ts @@ -0,0 +1,4 @@ +import sift from "./lib"; + +export default sift; +export * from "./lib"; diff --git a/week-3/04-course-app-hard/node_modules/sift/index.js b/week-3/04-course-app-hard/node_modules/sift/index.js new file mode 100644 index 000000000..449294a4c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/index.js @@ -0,0 +1,4 @@ +const lib = require("./lib"); + +module.exports = lib.default; +Object.assign(module.exports, lib); diff --git a/week-3/04-course-app-hard/node_modules/sift/lib/core.d.ts b/week-3/04-course-app-hard/node_modules/sift/lib/core.d.ts new file mode 100644 index 000000000..1e801ae54 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/lib/core.d.ts @@ -0,0 +1,116 @@ +import { Key, Comparator } from "./utils"; +export interface Operation { + readonly keep: boolean; + readonly done: boolean; + propop: boolean; + reset(): any; + next(item: TItem, key?: Key, owner?: any, root?: boolean, leaf?: boolean): any; +} +export type Tester = (item: any, key?: Key, owner?: any, root?: boolean, leaf?: boolean) => boolean; +export interface NamedOperation { + name: string; +} +export type OperationCreator = (params: any, parentQuery: any, options: Options, name: string) => Operation; +export type BasicValueQuery = { + $eq?: TValue; + $ne?: TValue; + $lt?: TValue; + $gt?: TValue; + $lte?: TValue; + $gte?: TValue; + $in?: TValue[]; + $nin?: TValue[]; + $all?: TValue[]; + $mod?: [number, number]; + $exists?: boolean; + $regex?: string | RegExp; + $size?: number; + $where?: ((this: TValue, obj: TValue) => boolean) | string; + $options?: "i" | "g" | "m" | "u"; + $type?: Function; + $not?: NestedQuery; + $or?: NestedQuery[]; + $nor?: NestedQuery[]; + $and?: NestedQuery[]; +}; +export type ArrayValueQuery = { + $elemMatch?: Query; +} & BasicValueQuery; +type Unpacked = T extends (infer U)[] ? U : T; +export type ValueQuery = TValue extends Array ? ArrayValueQuery> : BasicValueQuery; +type NotObject = string | number | Date | boolean | Array; +export type ShapeQuery = TItemSchema extends NotObject ? {} : { + [k in keyof TItemSchema]?: TItemSchema[k] | ValueQuery; +}; +export type NestedQuery = ValueQuery & ShapeQuery; +export type Query = TItemSchema | RegExp | NestedQuery; +export type QueryOperators = keyof ValueQuery; +export declare abstract class BaseOperation implements Operation { + readonly params: TParams; + readonly owneryQuery: any; + readonly options: Options; + readonly name?: string; + keep: boolean; + done: boolean; + abstract propop: boolean; + constructor(params: TParams, owneryQuery: any, options: Options, name?: string); + protected init(): void; + reset(): void; + abstract next(item: any, key: Key, parent: any, root: boolean, leaf?: boolean): any; +} +declare abstract class GroupOperation extends BaseOperation { + readonly children: Operation[]; + keep: boolean; + done: boolean; + constructor(params: any, owneryQuery: any, options: Options, children: Operation[]); + /** + */ + reset(): void; + abstract next(item: any, key: Key, owner: any, root: boolean): any; + /** + */ + protected childrenNext(item: any, key: Key, owner: any, root: boolean, leaf?: boolean): void; +} +export declare abstract class NamedGroupOperation extends GroupOperation implements NamedOperation { + readonly name: string; + abstract propop: boolean; + constructor(params: any, owneryQuery: any, options: Options, children: Operation[], name: string); +} +export declare class QueryOperation extends GroupOperation { + readonly propop = true; + /** + */ + next(item: TItem, key: Key, parent: any, root: boolean): void; +} +export declare class NestedOperation extends GroupOperation { + readonly keyPath: Key[]; + readonly propop = true; + constructor(keyPath: Key[], params: any, owneryQuery: any, options: Options, children: Operation[]); + /** + */ + next(item: any, key: Key, parent: any): void; + /** + */ + private _nextNestedValue; +} +export declare const createTester: (a: any, compare: Comparator) => any; +export declare class EqualsOperation extends BaseOperation { + readonly propop = true; + private _test; + init(): void; + next(item: any, key: Key, parent: any): void; +} +export declare const createEqualsOperation: (params: any, owneryQuery: any, options: Options) => EqualsOperation; +export declare const numericalOperationCreator: (createNumericalOperation: OperationCreator) => (params: any, owneryQuery: any, options: Options, name: string) => Operation; +export declare const numericalOperation: (createTester: (value: any) => Tester) => (params: any, owneryQuery: any, options: Options, name: string) => Operation; +export type Options = { + operations: { + [identifier: string]: OperationCreator; + }; + compare: (a: any, b: any) => boolean; +}; +export declare const containsOperation: (query: any, options: Options) => boolean; +export declare const createQueryOperation: (query: Query, owneryQuery?: any, { compare, operations }?: Partial) => QueryOperation; +export declare const createOperationTester: (operation: Operation) => (item: TItem, key?: Key, owner?: any) => boolean; +export declare const createQueryTester: (query: Query, options?: Partial) => (item: TItem, key?: Key, owner?: any) => boolean; +export {}; diff --git a/week-3/04-course-app-hard/node_modules/sift/lib/index.d.ts b/week-3/04-course-app-hard/node_modules/sift/lib/index.d.ts new file mode 100644 index 000000000..6218e8bee --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/lib/index.d.ts @@ -0,0 +1,6 @@ +import { Query, QueryOperators, BasicValueQuery, ArrayValueQuery, ValueQuery, NestedQuery, ShapeQuery, Options, createQueryTester, EqualsOperation, createQueryOperation, createEqualsOperation, createOperationTester } from "./core"; +declare const createDefaultQueryOperation: (query: Query, ownerQuery: any, { compare, operations }?: Partial) => import("./core").QueryOperation; +declare const createDefaultQueryTester: (query: Query, options?: Partial) => (item: unknown, key?: import("./utils").Key, owner?: any) => boolean; +export { Query, QueryOperators, BasicValueQuery, ArrayValueQuery, ValueQuery, NestedQuery, ShapeQuery, EqualsOperation, createQueryTester, createOperationTester, createDefaultQueryOperation, createEqualsOperation, createQueryOperation, }; +export * from "./operations"; +export default createDefaultQueryTester; diff --git a/week-3/04-course-app-hard/node_modules/sift/lib/index.js b/week-3/04-course-app-hard/node_modules/sift/lib/index.js new file mode 100644 index 000000000..d0d8933c3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/lib/index.js @@ -0,0 +1,781 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : + typeof define === 'function' && define.amd ? define(['exports'], factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sift = {})); +})(this, (function (exports) { 'use strict'; + + /****************************************************************************** + Copyright (c) Microsoft Corporation. + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted. + + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH + REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, + INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR + OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + PERFORMANCE OF THIS SOFTWARE. + ***************************************************************************** */ + /* global Reflect, Promise, SuppressedError, Symbol */ + + var extendStatics = function(d, b) { + extendStatics = Object.setPrototypeOf || + ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || + function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; + return extendStatics(d, b); + }; + + function __extends(d, b) { + if (typeof b !== "function" && b !== null) + throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); + extendStatics(d, b); + function __() { this.constructor = d; } + d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); + } + + typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) { + var e = new Error(message); + return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e; + }; + + var typeChecker = function (type) { + var typeString = "[object " + type + "]"; + return function (value) { + return getClassName(value) === typeString; + }; + }; + var getClassName = function (value) { return Object.prototype.toString.call(value); }; + var comparable = function (value) { + if (value instanceof Date) { + return value.getTime(); + } + else if (isArray(value)) { + return value.map(comparable); + } + else if (value && typeof value.toJSON === "function") { + return value.toJSON(); + } + return value; + }; + var coercePotentiallyNull = function (value) { + return value == null ? null : value; + }; + var isArray = typeChecker("Array"); + var isObject = typeChecker("Object"); + var isFunction = typeChecker("Function"); + var isProperty = function (item, key) { + return item.hasOwnProperty(key) && !isFunction(item[key]); + }; + var isVanillaObject = function (value) { + return (value && + (value.constructor === Object || + value.constructor === Array || + value.constructor.toString() === "function Object() { [native code] }" || + value.constructor.toString() === "function Array() { [native code] }") && + !value.toJSON); + }; + var equals = function (a, b) { + if (a == null && a == b) { + return true; + } + if (a === b) { + return true; + } + if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) { + return false; + } + if (isArray(a)) { + if (a.length !== b.length) { + return false; + } + for (var i = 0, length_1 = a.length; i < length_1; i++) { + if (!equals(a[i], b[i])) + return false; + } + return true; + } + else if (isObject(a)) { + if (Object.keys(a).length !== Object.keys(b).length) { + return false; + } + for (var key in a) { + if (!equals(a[key], b[key])) + return false; + } + return true; + } + return false; + }; + + /** + * Walks through each value given the context - used for nested operations. E.g: + * { "person.address": { $eq: "blarg" }} + */ + var walkKeyPathValues = function (item, keyPath, next, depth, key, owner) { + var currentKey = keyPath[depth]; + // if array, then try matching. Might fall through for cases like: + // { $eq: [1, 2, 3] }, [ 1, 2, 3 ]. + if (isArray(item) && + isNaN(Number(currentKey)) && + !isProperty(item, currentKey)) { + for (var i = 0, length_1 = item.length; i < length_1; i++) { + // if FALSE is returned, then terminate walker. For operations, this simply + // means that the search critera was met. + if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) { + return false; + } + } + } + if (depth === keyPath.length || item == null) { + return next(item, key, owner, depth === 0, depth === keyPath.length); + } + return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item); + }; + var BaseOperation = /** @class */ (function () { + function BaseOperation(params, owneryQuery, options, name) { + this.params = params; + this.owneryQuery = owneryQuery; + this.options = options; + this.name = name; + this.init(); + } + BaseOperation.prototype.init = function () { }; + BaseOperation.prototype.reset = function () { + this.done = false; + this.keep = false; + }; + return BaseOperation; + }()); + var GroupOperation = /** @class */ (function (_super) { + __extends(GroupOperation, _super); + function GroupOperation(params, owneryQuery, options, children) { + var _this = _super.call(this, params, owneryQuery, options) || this; + _this.children = children; + return _this; + } + /** + */ + GroupOperation.prototype.reset = function () { + this.keep = false; + this.done = false; + for (var i = 0, length_2 = this.children.length; i < length_2; i++) { + this.children[i].reset(); + } + }; + /** + */ + GroupOperation.prototype.childrenNext = function (item, key, owner, root, leaf) { + var done = true; + var keep = true; + for (var i = 0, length_3 = this.children.length; i < length_3; i++) { + var childOperation = this.children[i]; + if (!childOperation.done) { + childOperation.next(item, key, owner, root, leaf); + } + if (!childOperation.keep) { + keep = false; + } + if (childOperation.done) { + if (!childOperation.keep) { + break; + } + } + else { + done = false; + } + } + this.done = done; + this.keep = keep; + }; + return GroupOperation; + }(BaseOperation)); + var NamedGroupOperation = /** @class */ (function (_super) { + __extends(NamedGroupOperation, _super); + function NamedGroupOperation(params, owneryQuery, options, children, name) { + var _this = _super.call(this, params, owneryQuery, options, children) || this; + _this.name = name; + return _this; + } + return NamedGroupOperation; + }(GroupOperation)); + var QueryOperation = /** @class */ (function (_super) { + __extends(QueryOperation, _super); + function QueryOperation() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + /** + */ + QueryOperation.prototype.next = function (item, key, parent, root) { + this.childrenNext(item, key, parent, root); + }; + return QueryOperation; + }(GroupOperation)); + var NestedOperation = /** @class */ (function (_super) { + __extends(NestedOperation, _super); + function NestedOperation(keyPath, params, owneryQuery, options, children) { + var _this = _super.call(this, params, owneryQuery, options, children) || this; + _this.keyPath = keyPath; + _this.propop = true; + /** + */ + _this._nextNestedValue = function (value, key, owner, root, leaf) { + _this.childrenNext(value, key, owner, root, leaf); + return !_this.done; + }; + return _this; + } + /** + */ + NestedOperation.prototype.next = function (item, key, parent) { + walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent); + }; + return NestedOperation; + }(GroupOperation)); + var createTester = function (a, compare) { + if (a instanceof Function) { + return a; + } + if (a instanceof RegExp) { + return function (b) { + var result = typeof b === "string" && a.test(b); + a.lastIndex = 0; + return result; + }; + } + var comparableA = comparable(a); + return function (b) { return compare(comparableA, comparable(b)); }; + }; + var EqualsOperation = /** @class */ (function (_super) { + __extends(EqualsOperation, _super); + function EqualsOperation() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + EqualsOperation.prototype.init = function () { + this._test = createTester(this.params, this.options.compare); + }; + EqualsOperation.prototype.next = function (item, key, parent) { + if (!Array.isArray(parent) || parent.hasOwnProperty(key)) { + if (this._test(item, key, parent)) { + this.done = true; + this.keep = true; + } + } + }; + return EqualsOperation; + }(BaseOperation)); + var createEqualsOperation = function (params, owneryQuery, options) { return new EqualsOperation(params, owneryQuery, options); }; + var numericalOperationCreator = function (createNumericalOperation) { + return function (params, owneryQuery, options, name) { + return createNumericalOperation(params, owneryQuery, options, name); + }; + }; + var numericalOperation = function (createTester) { + return numericalOperationCreator(function (params, owneryQuery, options, name) { + var typeofParams = typeof comparable(params); + var test = createTester(params); + return new EqualsOperation(function (b) { + var actualValue = coercePotentiallyNull(b); + return (typeof comparable(actualValue) === typeofParams && test(actualValue)); + }, owneryQuery, options, name); + }); + }; + var createNamedOperation = function (name, params, parentQuery, options) { + var operationCreator = options.operations[name]; + if (!operationCreator) { + throwUnsupportedOperation(name); + } + return operationCreator(params, parentQuery, options, name); + }; + var throwUnsupportedOperation = function (name) { + throw new Error("Unsupported operation: ".concat(name)); + }; + var containsOperation = function (query, options) { + for (var key in query) { + if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$") + return true; + } + return false; + }; + var createNestedOperation = function (keyPath, nestedQuery, parentKey, owneryQuery, options) { + if (containsOperation(nestedQuery, options)) { + var _a = createQueryOperations(nestedQuery, parentKey, options), selfOperations = _a[0], nestedOperations = _a[1]; + if (nestedOperations.length) { + throw new Error("Property queries must contain only operations, or exact objects."); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [ + new EqualsOperation(nestedQuery, owneryQuery, options), + ]); + }; + var createQueryOperation = function (query, owneryQuery, _a) { + if (owneryQuery === void 0) { owneryQuery = null; } + var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations; + var options = { + compare: compare || equals, + operations: Object.assign({}, operations || {}), + }; + var _c = createQueryOperations(query, null, options), selfOperations = _c[0], nestedOperations = _c[1]; + var ops = []; + if (selfOperations.length) { + ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations)); + } + ops.push.apply(ops, nestedOperations); + if (ops.length === 1) { + return ops[0]; + } + return new QueryOperation(query, owneryQuery, options, ops); + }; + var createQueryOperations = function (query, parentKey, options) { + var selfOperations = []; + var nestedOperations = []; + if (!isVanillaObject(query)) { + selfOperations.push(new EqualsOperation(query, query, options)); + return [selfOperations, nestedOperations]; + } + for (var key in query) { + if (options.operations.hasOwnProperty(key)) { + var op = createNamedOperation(key, query[key], query, options); + if (op) { + if (!op.propop && parentKey && !options.operations[parentKey]) { + throw new Error("Malformed query. ".concat(key, " cannot be matched against property.")); + } + } + // probably just a flag for another operation (like $options) + if (op != null) { + selfOperations.push(op); + } + } + else if (key.charAt(0) === "$") { + throwUnsupportedOperation(key); + } + else { + nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options)); + } + } + return [selfOperations, nestedOperations]; + }; + var createOperationTester = function (operation) { + return function (item, key, owner) { + operation.reset(); + operation.next(item, key, owner); + return operation.keep; + }; + }; + var createQueryTester = function (query, options) { + if (options === void 0) { options = {}; } + return createOperationTester(createQueryOperation(query, null, options)); + }; + + var $Ne = /** @class */ (function (_super) { + __extends($Ne, _super); + function $Ne() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Ne.prototype.init = function () { + this._test = createTester(this.params, this.options.compare); + }; + $Ne.prototype.reset = function () { + _super.prototype.reset.call(this); + this.keep = true; + }; + $Ne.prototype.next = function (item) { + if (this._test(item)) { + this.done = true; + this.keep = false; + } + }; + return $Ne; + }(BaseOperation)); + // https://docs.mongodb.com/manual/reference/operator/query/elemMatch/ + var $ElemMatch = /** @class */ (function (_super) { + __extends($ElemMatch, _super); + function $ElemMatch() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $ElemMatch.prototype.init = function () { + if (!this.params || typeof this.params !== "object") { + throw new Error("Malformed query. $elemMatch must by an object."); + } + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + }; + $ElemMatch.prototype.reset = function () { + _super.prototype.reset.call(this); + this._queryOperation.reset(); + }; + $ElemMatch.prototype.next = function (item) { + if (isArray(item)) { + for (var i = 0, length_1 = item.length; i < length_1; i++) { + // reset query operation since item being tested needs to pass _all_ query + // operations for it to be a success + this._queryOperation.reset(); + var child = item[i]; + this._queryOperation.next(child, i, item, false); + this.keep = this.keep || this._queryOperation.keep; + } + this.done = true; + } + else { + this.done = false; + this.keep = false; + } + }; + return $ElemMatch; + }(BaseOperation)); + var $Not = /** @class */ (function (_super) { + __extends($Not, _super); + function $Not() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Not.prototype.init = function () { + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + }; + $Not.prototype.reset = function () { + _super.prototype.reset.call(this); + this._queryOperation.reset(); + }; + $Not.prototype.next = function (item, key, owner, root) { + this._queryOperation.next(item, key, owner, root); + this.done = this._queryOperation.done; + this.keep = !this._queryOperation.keep; + }; + return $Not; + }(BaseOperation)); + var $Size = /** @class */ (function (_super) { + __extends($Size, _super); + function $Size() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Size.prototype.init = function () { }; + $Size.prototype.next = function (item) { + if (isArray(item) && item.length === this.params) { + this.done = true; + this.keep = true; + } + // if (parent && parent.length === this.params) { + // this.done = true; + // this.keep = true; + // } + }; + return $Size; + }(BaseOperation)); + var assertGroupNotEmpty = function (values) { + if (values.length === 0) { + throw new Error("$and/$or/$nor must be a nonempty array"); + } + }; + var $Or = /** @class */ (function (_super) { + __extends($Or, _super); + function $Or() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = false; + return _this; + } + $Or.prototype.init = function () { + var _this = this; + assertGroupNotEmpty(this.params); + this._ops = this.params.map(function (op) { + return createQueryOperation(op, null, _this.options); + }); + }; + $Or.prototype.reset = function () { + this.done = false; + this.keep = false; + for (var i = 0, length_2 = this._ops.length; i < length_2; i++) { + this._ops[i].reset(); + } + }; + $Or.prototype.next = function (item, key, owner) { + var done = false; + var success = false; + for (var i = 0, length_3 = this._ops.length; i < length_3; i++) { + var op = this._ops[i]; + op.next(item, key, owner); + if (op.keep) { + done = true; + success = op.keep; + break; + } + } + this.keep = success; + this.done = done; + }; + return $Or; + }(BaseOperation)); + var $Nor = /** @class */ (function (_super) { + __extends($Nor, _super); + function $Nor() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = false; + return _this; + } + $Nor.prototype.next = function (item, key, owner) { + _super.prototype.next.call(this, item, key, owner); + this.keep = !this.keep; + }; + return $Nor; + }($Or)); + var $In = /** @class */ (function (_super) { + __extends($In, _super); + function $In() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $In.prototype.init = function () { + var _this = this; + var params = Array.isArray(this.params) ? this.params : [this.params]; + this._testers = params.map(function (value) { + if (containsOperation(value, _this.options)) { + throw new Error("cannot nest $ under ".concat(_this.name.toLowerCase())); + } + return createTester(value, _this.options.compare); + }); + }; + $In.prototype.next = function (item, key, owner) { + var done = false; + var success = false; + for (var i = 0, length_4 = this._testers.length; i < length_4; i++) { + var test = this._testers[i]; + if (test(item)) { + done = true; + success = true; + break; + } + } + this.keep = success; + this.done = done; + }; + return $In; + }(BaseOperation)); + var $Nin = /** @class */ (function (_super) { + __extends($Nin, _super); + function $Nin(params, ownerQuery, options, name) { + var _this = _super.call(this, params, ownerQuery, options, name) || this; + _this.propop = true; + _this._in = new $In(params, ownerQuery, options, name); + return _this; + } + $Nin.prototype.next = function (item, key, owner, root) { + this._in.next(item, key, owner); + if (isArray(owner) && !root) { + if (this._in.keep) { + this.keep = false; + this.done = true; + } + else if (key == owner.length - 1) { + this.keep = true; + this.done = true; + } + } + else { + this.keep = !this._in.keep; + this.done = true; + } + }; + $Nin.prototype.reset = function () { + _super.prototype.reset.call(this); + this._in.reset(); + }; + return $Nin; + }(BaseOperation)); + var $Exists = /** @class */ (function (_super) { + __extends($Exists, _super); + function $Exists() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Exists.prototype.next = function (item, key, owner, root, leaf) { + if (!leaf) { + this.done = true; + this.keep = !this.params; + } + else if (owner.hasOwnProperty(key) === this.params) { + this.done = true; + this.keep = true; + } + }; + return $Exists; + }(BaseOperation)); + var $And = /** @class */ (function (_super) { + __extends($And, _super); + function $And(params, owneryQuery, options, name) { + var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this; + _this.propop = false; + assertGroupNotEmpty(params); + return _this; + } + $And.prototype.next = function (item, key, owner, root) { + this.childrenNext(item, key, owner, root); + }; + return $And; + }(NamedGroupOperation)); + var $All = /** @class */ (function (_super) { + __extends($All, _super); + function $All(params, owneryQuery, options, name) { + var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this; + _this.propop = true; + return _this; + } + $All.prototype.next = function (item, key, owner, root) { + this.childrenNext(item, key, owner, root); + }; + return $All; + }(NamedGroupOperation)); + var $eq = function (params, owneryQuery, options) { + return new EqualsOperation(params, owneryQuery, options); + }; + var $ne = function (params, owneryQuery, options, name) { return new $Ne(params, owneryQuery, options, name); }; + var $or = function (params, owneryQuery, options, name) { return new $Or(params, owneryQuery, options, name); }; + var $nor = function (params, owneryQuery, options, name) { return new $Nor(params, owneryQuery, options, name); }; + var $elemMatch = function (params, owneryQuery, options, name) { return new $ElemMatch(params, owneryQuery, options, name); }; + var $nin = function (params, owneryQuery, options, name) { return new $Nin(params, owneryQuery, options, name); }; + var $in = function (params, owneryQuery, options, name) { + return new $In(params, owneryQuery, options, name); + }; + var $lt = numericalOperation(function (params) { return function (b) { + return b != null && b < params; + }; }); + var $lte = numericalOperation(function (params) { return function (b) { + return b === params || b <= params; + }; }); + var $gt = numericalOperation(function (params) { return function (b) { + return b != null && b > params; + }; }); + var $gte = numericalOperation(function (params) { return function (b) { + return b === params || b >= params; + }; }); + var $mod = function (_a, owneryQuery, options) { + var mod = _a[0], equalsValue = _a[1]; + return new EqualsOperation(function (b) { return comparable(b) % mod === equalsValue; }, owneryQuery, options); + }; + var $exists = function (params, owneryQuery, options, name) { return new $Exists(params, owneryQuery, options, name); }; + var $regex = function (pattern, owneryQuery, options) { + return new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options); + }; + var $not = function (params, owneryQuery, options, name) { return new $Not(params, owneryQuery, options, name); }; + var typeAliases = { + number: function (v) { return typeof v === "number"; }, + string: function (v) { return typeof v === "string"; }, + bool: function (v) { return typeof v === "boolean"; }, + array: function (v) { return Array.isArray(v); }, + null: function (v) { return v === null; }, + timestamp: function (v) { return v instanceof Date; }, + }; + var $type = function (clazz, owneryQuery, options) { + return new EqualsOperation(function (b) { + if (typeof clazz === "string") { + if (!typeAliases[clazz]) { + throw new Error("Type alias does not exist"); + } + return typeAliases[clazz](b); + } + return b != null ? b instanceof clazz || b.constructor === clazz : false; + }, owneryQuery, options); + }; + var $and = function (params, ownerQuery, options, name) { return new $And(params, ownerQuery, options, name); }; + var $all = function (params, ownerQuery, options, name) { return new $All(params, ownerQuery, options, name); }; + var $size = function (params, ownerQuery, options) { return new $Size(params, ownerQuery, options, "$size"); }; + var $options = function () { return null; }; + var $where = function (params, ownerQuery, options) { + var test; + if (isFunction(params)) { + test = params; + } + else if (!process.env.CSP_ENABLED) { + test = new Function("obj", "return " + params); + } + else { + throw new Error("In CSP mode, sift does not support strings in \"$where\" condition"); + } + return new EqualsOperation(function (b) { return test.bind(b)(b); }, ownerQuery, options); + }; + + var defaultOperations = /*#__PURE__*/Object.freeze({ + __proto__: null, + $Size: $Size, + $all: $all, + $and: $and, + $elemMatch: $elemMatch, + $eq: $eq, + $exists: $exists, + $gt: $gt, + $gte: $gte, + $in: $in, + $lt: $lt, + $lte: $lte, + $mod: $mod, + $ne: $ne, + $nin: $nin, + $nor: $nor, + $not: $not, + $options: $options, + $or: $or, + $regex: $regex, + $size: $size, + $type: $type, + $where: $where + }); + + var createDefaultQueryOperation = function (query, ownerQuery, _a) { + var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations; + return createQueryOperation(query, ownerQuery, { + compare: compare, + operations: Object.assign({}, defaultOperations, operations || {}), + }); + }; + var createDefaultQueryTester = function (query, options) { + if (options === void 0) { options = {}; } + var op = createDefaultQueryOperation(query, null, options); + return createOperationTester(op); + }; + + exports.$Size = $Size; + exports.$all = $all; + exports.$and = $and; + exports.$elemMatch = $elemMatch; + exports.$eq = $eq; + exports.$exists = $exists; + exports.$gt = $gt; + exports.$gte = $gte; + exports.$in = $in; + exports.$lt = $lt; + exports.$lte = $lte; + exports.$mod = $mod; + exports.$ne = $ne; + exports.$nin = $nin; + exports.$nor = $nor; + exports.$not = $not; + exports.$options = $options; + exports.$or = $or; + exports.$regex = $regex; + exports.$size = $size; + exports.$type = $type; + exports.$where = $where; + exports.EqualsOperation = EqualsOperation; + exports.createDefaultQueryOperation = createDefaultQueryOperation; + exports.createEqualsOperation = createEqualsOperation; + exports.createOperationTester = createOperationTester; + exports.createQueryOperation = createQueryOperation; + exports.createQueryTester = createQueryTester; + exports.default = createDefaultQueryTester; + + Object.defineProperty(exports, '__esModule', { value: true }); + +})); +//# sourceMappingURL=index.js.map diff --git a/week-3/04-course-app-hard/node_modules/sift/lib/index.js.map b/week-3/04-course-app-hard/node_modules/sift/lib/index.js.map new file mode 100644 index 000000000..ca6a98b56 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/lib/index.js.map @@ -0,0 +1 @@ +{"version":3,"file":"index.js","sources":["../node_modules/tslib/tslib.es6.js","../src/utils.ts","../src/core.ts","../src/operations.ts","../src/index.ts"],"sourcesContent":["/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\r\n function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\r\n var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\r\n var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\r\n var descriptor = descriptorIn || (target ? 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(this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n\r\nexport function __classPrivateFieldIn(state, receiver) {\r\n if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\r\n return typeof state === \"function\" ? receiver === state : state.has(receiver);\r\n}\r\n\r\nexport function __addDisposableResource(env, value, async) {\r\n if (value !== null && value !== void 0) {\r\n if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\r\n var dispose;\r\n if (async) {\r\n if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\r\n dispose = value[Symbol.asyncDispose];\r\n }\r\n if (dispose === void 0) {\r\n if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\r\n dispose = value[Symbol.dispose];\r\n }\r\n if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\r\n env.stack.push({ value: value, dispose: dispose, async: async });\r\n }\r\n else if (async) {\r\n env.stack.push({ async: true });\r\n }\r\n return value;\r\n}\r\n\r\nvar _SuppressedError = typeof SuppressedError === \"function\" ? 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/sift/lib/operations.d.ts b/week-3/04-course-app-hard/node_modules/sift/lib/operations.d.ts new file mode 100644 index 000000000..7e49f74e0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/lib/operations.d.ts @@ -0,0 +1,88 @@ +import { BaseOperation, EqualsOperation, Options, Operation, Query, NamedGroupOperation } from "./core"; +import { Key } from "./utils"; +declare class $Ne extends BaseOperation { + readonly propop = true; + private _test; + init(): void; + reset(): void; + next(item: any): void; +} +declare class $ElemMatch extends BaseOperation> { + readonly propop = true; + private _queryOperation; + init(): void; + reset(): void; + next(item: any): void; +} +declare class $Not extends BaseOperation> { + readonly propop = true; + private _queryOperation; + init(): void; + reset(): void; + next(item: any, key: Key, owner: any, root: boolean): void; +} +export declare class $Size extends BaseOperation { + readonly propop = true; + init(): void; + next(item: any): void; +} +declare class $Or extends BaseOperation { + readonly propop = false; + private _ops; + init(): void; + reset(): void; + next(item: any, key: Key, owner: any): void; +} +declare class $Nor extends $Or { + readonly propop = false; + next(item: any, key: Key, owner: any): void; +} +declare class $In extends BaseOperation { + readonly propop = true; + private _testers; + init(): void; + next(item: any, key: Key, owner: any): void; +} +declare class $Nin extends BaseOperation { + readonly propop = true; + private _in; + constructor(params: any, ownerQuery: any, options: Options, name: string); + next(item: any, key: Key, owner: any, root: boolean): void; + reset(): void; +} +declare class $Exists extends BaseOperation { + readonly propop = true; + next(item: any, key: Key, owner: any, root: boolean, leaf?: boolean): void; +} +declare class $And extends NamedGroupOperation { + readonly propop = false; + constructor(params: Query[], owneryQuery: Query, options: Options, name: string); + next(item: any, key: Key, owner: any, root: boolean): void; +} +declare class $All extends NamedGroupOperation { + readonly propop = true; + constructor(params: Query[], owneryQuery: Query, options: Options, name: string); + next(item: any, key: Key, owner: any, root: boolean): void; +} +export declare const $eq: (params: any, owneryQuery: Query, options: Options) => EqualsOperation; +export declare const $ne: (params: any, owneryQuery: Query, options: Options, name: string) => $Ne; +export declare const $or: (params: Query[], owneryQuery: Query, options: Options, name: string) => $Or; +export declare const $nor: (params: Query[], owneryQuery: Query, options: Options, name: string) => $Nor; +export declare const $elemMatch: (params: any, owneryQuery: Query, options: Options, name: string) => $ElemMatch; +export declare const $nin: (params: any, owneryQuery: Query, options: Options, name: string) => $Nin; +export declare const $in: (params: any, owneryQuery: Query, options: Options, name: string) => $In; +export declare const $lt: (params: any, owneryQuery: any, options: Options, name: string) => Operation; +export declare const $lte: (params: any, owneryQuery: any, options: Options, name: string) => Operation; +export declare const $gt: (params: any, owneryQuery: any, options: Options, name: string) => Operation; +export declare const $gte: (params: any, owneryQuery: any, options: Options, name: string) => Operation; +export declare const $mod: ([mod, equalsValue]: number[], owneryQuery: Query, options: Options) => EqualsOperation<(b: any) => boolean>; +export declare const $exists: (params: boolean, owneryQuery: Query, options: Options, name: string) => $Exists; +export declare const $regex: (pattern: string, owneryQuery: Query, options: Options) => EqualsOperation; +export declare const $not: (params: any, owneryQuery: Query, options: Options, name: string) => $Not; +export declare const $type: (clazz: Function | string, owneryQuery: Query, options: Options) => EqualsOperation<(b: any) => any>; +export declare const $and: (params: Query[], ownerQuery: Query, options: Options, name: string) => $And; +export declare const $all: (params: Query[], ownerQuery: Query, options: Options, name: string) => $All; +export declare const $size: (params: number, ownerQuery: Query, options: Options) => $Size; +export declare const $options: () => any; +export declare const $where: (params: string | Function, ownerQuery: Query, options: Options) => EqualsOperation<(b: any) => any>; +export {}; diff --git a/week-3/04-course-app-hard/node_modules/sift/lib/utils.d.ts b/week-3/04-course-app-hard/node_modules/sift/lib/utils.d.ts new file mode 100644 index 000000000..4de9e7461 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/lib/utils.d.ts @@ -0,0 +1,11 @@ +export type Key = string | number; +export type Comparator = (a: any, b: any) => boolean; +export declare const typeChecker: (type: any) => (value: any) => value is TType; +export declare const comparable: (value: any) => any; +export declare const coercePotentiallyNull: (value: any) => any; +export declare const isArray: (value: any) => value is any[]; +export declare const isObject: (value: any) => value is Object; +export declare const isFunction: (value: any) => value is Function; +export declare const isProperty: (item: any, key: any) => boolean; +export declare const isVanillaObject: (value: any) => boolean; +export declare const equals: (a: any, b: any) => boolean; diff --git a/week-3/04-course-app-hard/node_modules/sift/package.json b/week-3/04-course-app-hard/node_modules/sift/package.json new file mode 100644 index 000000000..0784287ea --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/package.json @@ -0,0 +1,61 @@ +{ + "name": "sift", + "description": "MongoDB query filtering in JavaScript", + "version": "17.1.3", + "repository": "crcn/sift.js", + "sideEffects": false, + "author": { + "name": "Craig Condon", + "email": "craig.j.condon@gmail.com" + }, + "license": "MIT", + "engines": {}, + "typings": "./index.d.ts", + "husky": { + "hooks": { + "pre-commit": "pretty-quick --staged" + } + }, + "devDependencies": { + "@rollup/plugin-replace": "^2.3.2", + "@rollup/plugin-typescript": "8.2.1", + "@types/node": "^13.7.0", + "bson": "^6.6.0", + "eval": "^0.1.8", + "husky": "^9.0.11", + "mocha": "10.4.0", + "mongodb": "^3.6.6", + "prettier": "3.2.5", + "pretty-quick": "^4.0.0", + "rimraf": "^5.0.5", + "rollup": "^4.14.2", + "@rollup/plugin-terser": "^0.4.4", + "tslib": "2.6.2", + "typescript": "5.4.5" + }, + "main": "./index.js", + "module": "./es5m/index.js", + "es2015": "./es/index.js", + "scripts": { + "clean": "rimraf lib es5m es", + "prebuild": "npm run clean && npm run build:types", + "build": "rollup -c", + "build:types": "tsc -p tsconfig.json --emitDeclarationOnly --outDir lib", + "test": "npm run test:spec && npm run test:types", + "test:spec": "mocha ./test -R spec", + "test:types": "cd test && tsc types.ts --noEmit", + "prepublishOnly": "npm run build && npm run test" + }, + "files": [ + "es", + "es5m", + "lib", + "src", + "*.d.ts", + "*.js.map", + "index.js", + "sift.csp.min.js", + "sift.min.js", + "MIT-LICENSE.txt" + ] +} diff --git a/week-3/04-course-app-hard/node_modules/sift/sift.csp.min.js b/week-3/04-course-app-hard/node_modules/sift/sift.csp.min.js new file mode 100644 index 000000000..673941c2c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/sift.csp.min.js @@ -0,0 +1,778 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : + typeof define === 'function' && define.amd ? define(['exports'], factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sift = {})); +})(this, (function (exports) { 'use strict'; + + /****************************************************************************** + Copyright (c) Microsoft Corporation. + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted. + + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH + REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, + INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR + OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + PERFORMANCE OF THIS SOFTWARE. + ***************************************************************************** */ + /* global Reflect, Promise, SuppressedError, Symbol */ + + var extendStatics = function(d, b) { + extendStatics = Object.setPrototypeOf || + ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || + function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; + return extendStatics(d, b); + }; + + function __extends(d, b) { + if (typeof b !== "function" && b !== null) + throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); + extendStatics(d, b); + function __() { this.constructor = d; } + d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); + } + + typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) { + var e = new Error(message); + return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e; + }; + + var typeChecker = function (type) { + var typeString = "[object " + type + "]"; + return function (value) { + return getClassName(value) === typeString; + }; + }; + var getClassName = function (value) { return Object.prototype.toString.call(value); }; + var comparable = function (value) { + if (value instanceof Date) { + return value.getTime(); + } + else if (isArray(value)) { + return value.map(comparable); + } + else if (value && typeof value.toJSON === "function") { + return value.toJSON(); + } + return value; + }; + var coercePotentiallyNull = function (value) { + return value == null ? null : value; + }; + var isArray = typeChecker("Array"); + var isObject = typeChecker("Object"); + var isFunction = typeChecker("Function"); + var isProperty = function (item, key) { + return item.hasOwnProperty(key) && !isFunction(item[key]); + }; + var isVanillaObject = function (value) { + return (value && + (value.constructor === Object || + value.constructor === Array || + value.constructor.toString() === "function Object() { [native code] }" || + value.constructor.toString() === "function Array() { [native code] }") && + !value.toJSON); + }; + var equals = function (a, b) { + if (a == null && a == b) { + return true; + } + if (a === b) { + return true; + } + if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) { + return false; + } + if (isArray(a)) { + if (a.length !== b.length) { + return false; + } + for (var i = 0, length_1 = a.length; i < length_1; i++) { + if (!equals(a[i], b[i])) + return false; + } + return true; + } + else if (isObject(a)) { + if (Object.keys(a).length !== Object.keys(b).length) { + return false; + } + for (var key in a) { + if (!equals(a[key], b[key])) + return false; + } + return true; + } + return false; + }; + + /** + * Walks through each value given the context - used for nested operations. E.g: + * { "person.address": { $eq: "blarg" }} + */ + var walkKeyPathValues = function (item, keyPath, next, depth, key, owner) { + var currentKey = keyPath[depth]; + // if array, then try matching. Might fall through for cases like: + // { $eq: [1, 2, 3] }, [ 1, 2, 3 ]. + if (isArray(item) && + isNaN(Number(currentKey)) && + !isProperty(item, currentKey)) { + for (var i = 0, length_1 = item.length; i < length_1; i++) { + // if FALSE is returned, then terminate walker. For operations, this simply + // means that the search critera was met. + if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) { + return false; + } + } + } + if (depth === keyPath.length || item == null) { + return next(item, key, owner, depth === 0, depth === keyPath.length); + } + return walkKeyPathValues(item[currentKey], keyPath, next, depth + 1, currentKey, item); + }; + var BaseOperation = /** @class */ (function () { + function BaseOperation(params, owneryQuery, options, name) { + this.params = params; + this.owneryQuery = owneryQuery; + this.options = options; + this.name = name; + this.init(); + } + BaseOperation.prototype.init = function () { }; + BaseOperation.prototype.reset = function () { + this.done = false; + this.keep = false; + }; + return BaseOperation; + }()); + var GroupOperation = /** @class */ (function (_super) { + __extends(GroupOperation, _super); + function GroupOperation(params, owneryQuery, options, children) { + var _this = _super.call(this, params, owneryQuery, options) || this; + _this.children = children; + return _this; + } + /** + */ + GroupOperation.prototype.reset = function () { + this.keep = false; + this.done = false; + for (var i = 0, length_2 = this.children.length; i < length_2; i++) { + this.children[i].reset(); + } + }; + /** + */ + GroupOperation.prototype.childrenNext = function (item, key, owner, root, leaf) { + var done = true; + var keep = true; + for (var i = 0, length_3 = this.children.length; i < length_3; i++) { + var childOperation = this.children[i]; + if (!childOperation.done) { + childOperation.next(item, key, owner, root, leaf); + } + if (!childOperation.keep) { + keep = false; + } + if (childOperation.done) { + if (!childOperation.keep) { + break; + } + } + else { + done = false; + } + } + this.done = done; + this.keep = keep; + }; + return GroupOperation; + }(BaseOperation)); + var NamedGroupOperation = /** @class */ (function (_super) { + __extends(NamedGroupOperation, _super); + function NamedGroupOperation(params, owneryQuery, options, children, name) { + var _this = _super.call(this, params, owneryQuery, options, children) || this; + _this.name = name; + return _this; + } + return NamedGroupOperation; + }(GroupOperation)); + var QueryOperation = /** @class */ (function (_super) { + __extends(QueryOperation, _super); + function QueryOperation() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + /** + */ + QueryOperation.prototype.next = function (item, key, parent, root) { + this.childrenNext(item, key, parent, root); + }; + return QueryOperation; + }(GroupOperation)); + var NestedOperation = /** @class */ (function (_super) { + __extends(NestedOperation, _super); + function NestedOperation(keyPath, params, owneryQuery, options, children) { + var _this = _super.call(this, params, owneryQuery, options, children) || this; + _this.keyPath = keyPath; + _this.propop = true; + /** + */ + _this._nextNestedValue = function (value, key, owner, root, leaf) { + _this.childrenNext(value, key, owner, root, leaf); + return !_this.done; + }; + return _this; + } + /** + */ + NestedOperation.prototype.next = function (item, key, parent) { + walkKeyPathValues(item, this.keyPath, this._nextNestedValue, 0, key, parent); + }; + return NestedOperation; + }(GroupOperation)); + var createTester = function (a, compare) { + if (a instanceof Function) { + return a; + } + if (a instanceof RegExp) { + return function (b) { + var result = typeof b === "string" && a.test(b); + a.lastIndex = 0; + return result; + }; + } + var comparableA = comparable(a); + return function (b) { return compare(comparableA, comparable(b)); }; + }; + var EqualsOperation = /** @class */ (function (_super) { + __extends(EqualsOperation, _super); + function EqualsOperation() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + EqualsOperation.prototype.init = function () { + this._test = createTester(this.params, this.options.compare); + }; + EqualsOperation.prototype.next = function (item, key, parent) { + if (!Array.isArray(parent) || parent.hasOwnProperty(key)) { + if (this._test(item, key, parent)) { + this.done = true; + this.keep = true; + } + } + }; + return EqualsOperation; + }(BaseOperation)); + var createEqualsOperation = function (params, owneryQuery, options) { return new EqualsOperation(params, owneryQuery, options); }; + var numericalOperationCreator = function (createNumericalOperation) { + return function (params, owneryQuery, options, name) { + return createNumericalOperation(params, owneryQuery, options, name); + }; + }; + var numericalOperation = function (createTester) { + return numericalOperationCreator(function (params, owneryQuery, options, name) { + var typeofParams = typeof comparable(params); + var test = createTester(params); + return new EqualsOperation(function (b) { + var actualValue = coercePotentiallyNull(b); + return (typeof comparable(actualValue) === typeofParams && test(actualValue)); + }, owneryQuery, options, name); + }); + }; + var createNamedOperation = function (name, params, parentQuery, options) { + var operationCreator = options.operations[name]; + if (!operationCreator) { + throwUnsupportedOperation(name); + } + return operationCreator(params, parentQuery, options, name); + }; + var throwUnsupportedOperation = function (name) { + throw new Error("Unsupported operation: ".concat(name)); + }; + var containsOperation = function (query, options) { + for (var key in query) { + if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$") + return true; + } + return false; + }; + var createNestedOperation = function (keyPath, nestedQuery, parentKey, owneryQuery, options) { + if (containsOperation(nestedQuery, options)) { + var _a = createQueryOperations(nestedQuery, parentKey, options), selfOperations = _a[0], nestedOperations = _a[1]; + if (nestedOperations.length) { + throw new Error("Property queries must contain only operations, or exact objects."); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, selfOperations); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [ + new EqualsOperation(nestedQuery, owneryQuery, options), + ]); + }; + var createQueryOperation = function (query, owneryQuery, _a) { + if (owneryQuery === void 0) { owneryQuery = null; } + var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations; + var options = { + compare: compare || equals, + operations: Object.assign({}, operations || {}), + }; + var _c = createQueryOperations(query, null, options), selfOperations = _c[0], nestedOperations = _c[1]; + var ops = []; + if (selfOperations.length) { + ops.push(new NestedOperation([], query, owneryQuery, options, selfOperations)); + } + ops.push.apply(ops, nestedOperations); + if (ops.length === 1) { + return ops[0]; + } + return new QueryOperation(query, owneryQuery, options, ops); + }; + var createQueryOperations = function (query, parentKey, options) { + var selfOperations = []; + var nestedOperations = []; + if (!isVanillaObject(query)) { + selfOperations.push(new EqualsOperation(query, query, options)); + return [selfOperations, nestedOperations]; + } + for (var key in query) { + if (options.operations.hasOwnProperty(key)) { + var op = createNamedOperation(key, query[key], query, options); + if (op) { + if (!op.propop && parentKey && !options.operations[parentKey]) { + throw new Error("Malformed query. ".concat(key, " cannot be matched against property.")); + } + } + // probably just a flag for another operation (like $options) + if (op != null) { + selfOperations.push(op); + } + } + else if (key.charAt(0) === "$") { + throwUnsupportedOperation(key); + } + else { + nestedOperations.push(createNestedOperation(key.split("."), query[key], key, query, options)); + } + } + return [selfOperations, nestedOperations]; + }; + var createOperationTester = function (operation) { + return function (item, key, owner) { + operation.reset(); + operation.next(item, key, owner); + return operation.keep; + }; + }; + var createQueryTester = function (query, options) { + if (options === void 0) { options = {}; } + return createOperationTester(createQueryOperation(query, null, options)); + }; + + var $Ne = /** @class */ (function (_super) { + __extends($Ne, _super); + function $Ne() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Ne.prototype.init = function () { + this._test = createTester(this.params, this.options.compare); + }; + $Ne.prototype.reset = function () { + _super.prototype.reset.call(this); + this.keep = true; + }; + $Ne.prototype.next = function (item) { + if (this._test(item)) { + this.done = true; + this.keep = false; + } + }; + return $Ne; + }(BaseOperation)); + // https://docs.mongodb.com/manual/reference/operator/query/elemMatch/ + var $ElemMatch = /** @class */ (function (_super) { + __extends($ElemMatch, _super); + function $ElemMatch() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $ElemMatch.prototype.init = function () { + if (!this.params || typeof this.params !== "object") { + throw new Error("Malformed query. $elemMatch must by an object."); + } + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + }; + $ElemMatch.prototype.reset = function () { + _super.prototype.reset.call(this); + this._queryOperation.reset(); + }; + $ElemMatch.prototype.next = function (item) { + if (isArray(item)) { + for (var i = 0, length_1 = item.length; i < length_1; i++) { + // reset query operation since item being tested needs to pass _all_ query + // operations for it to be a success + this._queryOperation.reset(); + var child = item[i]; + this._queryOperation.next(child, i, item, false); + this.keep = this.keep || this._queryOperation.keep; + } + this.done = true; + } + else { + this.done = false; + this.keep = false; + } + }; + return $ElemMatch; + }(BaseOperation)); + var $Not = /** @class */ (function (_super) { + __extends($Not, _super); + function $Not() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Not.prototype.init = function () { + this._queryOperation = createQueryOperation(this.params, this.owneryQuery, this.options); + }; + $Not.prototype.reset = function () { + _super.prototype.reset.call(this); + this._queryOperation.reset(); + }; + $Not.prototype.next = function (item, key, owner, root) { + this._queryOperation.next(item, key, owner, root); + this.done = this._queryOperation.done; + this.keep = !this._queryOperation.keep; + }; + return $Not; + }(BaseOperation)); + var $Size = /** @class */ (function (_super) { + __extends($Size, _super); + function $Size() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Size.prototype.init = function () { }; + $Size.prototype.next = function (item) { + if (isArray(item) && item.length === this.params) { + this.done = true; + this.keep = true; + } + // if (parent && parent.length === this.params) { + // this.done = true; + // this.keep = true; + // } + }; + return $Size; + }(BaseOperation)); + var assertGroupNotEmpty = function (values) { + if (values.length === 0) { + throw new Error("$and/$or/$nor must be a nonempty array"); + } + }; + var $Or = /** @class */ (function (_super) { + __extends($Or, _super); + function $Or() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = false; + return _this; + } + $Or.prototype.init = function () { + var _this = this; + assertGroupNotEmpty(this.params); + this._ops = this.params.map(function (op) { + return createQueryOperation(op, null, _this.options); + }); + }; + $Or.prototype.reset = function () { + this.done = false; + this.keep = false; + for (var i = 0, length_2 = this._ops.length; i < length_2; i++) { + this._ops[i].reset(); + } + }; + $Or.prototype.next = function (item, key, owner) { + var done = false; + var success = false; + for (var i = 0, length_3 = this._ops.length; i < length_3; i++) { + var op = this._ops[i]; + op.next(item, key, owner); + if (op.keep) { + done = true; + success = op.keep; + break; + } + } + this.keep = success; + this.done = done; + }; + return $Or; + }(BaseOperation)); + var $Nor = /** @class */ (function (_super) { + __extends($Nor, _super); + function $Nor() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = false; + return _this; + } + $Nor.prototype.next = function (item, key, owner) { + _super.prototype.next.call(this, item, key, owner); + this.keep = !this.keep; + }; + return $Nor; + }($Or)); + var $In = /** @class */ (function (_super) { + __extends($In, _super); + function $In() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $In.prototype.init = function () { + var _this = this; + var params = Array.isArray(this.params) ? this.params : [this.params]; + this._testers = params.map(function (value) { + if (containsOperation(value, _this.options)) { + throw new Error("cannot nest $ under ".concat(_this.name.toLowerCase())); + } + return createTester(value, _this.options.compare); + }); + }; + $In.prototype.next = function (item, key, owner) { + var done = false; + var success = false; + for (var i = 0, length_4 = this._testers.length; i < length_4; i++) { + var test = this._testers[i]; + if (test(item)) { + done = true; + success = true; + break; + } + } + this.keep = success; + this.done = done; + }; + return $In; + }(BaseOperation)); + var $Nin = /** @class */ (function (_super) { + __extends($Nin, _super); + function $Nin(params, ownerQuery, options, name) { + var _this = _super.call(this, params, ownerQuery, options, name) || this; + _this.propop = true; + _this._in = new $In(params, ownerQuery, options, name); + return _this; + } + $Nin.prototype.next = function (item, key, owner, root) { + this._in.next(item, key, owner); + if (isArray(owner) && !root) { + if (this._in.keep) { + this.keep = false; + this.done = true; + } + else if (key == owner.length - 1) { + this.keep = true; + this.done = true; + } + } + else { + this.keep = !this._in.keep; + this.done = true; + } + }; + $Nin.prototype.reset = function () { + _super.prototype.reset.call(this); + this._in.reset(); + }; + return $Nin; + }(BaseOperation)); + var $Exists = /** @class */ (function (_super) { + __extends($Exists, _super); + function $Exists() { + var _this = _super !== null && _super.apply(this, arguments) || this; + _this.propop = true; + return _this; + } + $Exists.prototype.next = function (item, key, owner, root, leaf) { + if (!leaf) { + this.done = true; + this.keep = !this.params; + } + else if (owner.hasOwnProperty(key) === this.params) { + this.done = true; + this.keep = true; + } + }; + return $Exists; + }(BaseOperation)); + var $And = /** @class */ (function (_super) { + __extends($And, _super); + function $And(params, owneryQuery, options, name) { + var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this; + _this.propop = false; + assertGroupNotEmpty(params); + return _this; + } + $And.prototype.next = function (item, key, owner, root) { + this.childrenNext(item, key, owner, root); + }; + return $And; + }(NamedGroupOperation)); + var $All = /** @class */ (function (_super) { + __extends($All, _super); + function $All(params, owneryQuery, options, name) { + var _this = _super.call(this, params, owneryQuery, options, params.map(function (query) { return createQueryOperation(query, owneryQuery, options); }), name) || this; + _this.propop = true; + return _this; + } + $All.prototype.next = function (item, key, owner, root) { + this.childrenNext(item, key, owner, root); + }; + return $All; + }(NamedGroupOperation)); + var $eq = function (params, owneryQuery, options) { + return new EqualsOperation(params, owneryQuery, options); + }; + var $ne = function (params, owneryQuery, options, name) { return new $Ne(params, owneryQuery, options, name); }; + var $or = function (params, owneryQuery, options, name) { return new $Or(params, owneryQuery, options, name); }; + var $nor = function (params, owneryQuery, options, name) { return new $Nor(params, owneryQuery, options, name); }; + var $elemMatch = function (params, owneryQuery, options, name) { return new $ElemMatch(params, owneryQuery, options, name); }; + var $nin = function (params, owneryQuery, options, name) { return new $Nin(params, owneryQuery, options, name); }; + var $in = function (params, owneryQuery, options, name) { + return new $In(params, owneryQuery, options, name); + }; + var $lt = numericalOperation(function (params) { return function (b) { + return b != null && b < params; + }; }); + var $lte = numericalOperation(function (params) { return function (b) { + return b === params || b <= params; + }; }); + var $gt = numericalOperation(function (params) { return function (b) { + return b != null && b > params; + }; }); + var $gte = numericalOperation(function (params) { return function (b) { + return b === params || b >= params; + }; }); + var $mod = function (_a, owneryQuery, options) { + var mod = _a[0], equalsValue = _a[1]; + return new EqualsOperation(function (b) { return comparable(b) % mod === equalsValue; }, owneryQuery, options); + }; + var $exists = function (params, owneryQuery, options, name) { return new $Exists(params, owneryQuery, options, name); }; + var $regex = function (pattern, owneryQuery, options) { + return new EqualsOperation(new RegExp(pattern, owneryQuery.$options), owneryQuery, options); + }; + var $not = function (params, owneryQuery, options, name) { return new $Not(params, owneryQuery, options, name); }; + var typeAliases = { + number: function (v) { return typeof v === "number"; }, + string: function (v) { return typeof v === "string"; }, + bool: function (v) { return typeof v === "boolean"; }, + array: function (v) { return Array.isArray(v); }, + null: function (v) { return v === null; }, + timestamp: function (v) { return v instanceof Date; }, + }; + var $type = function (clazz, owneryQuery, options) { + return new EqualsOperation(function (b) { + if (typeof clazz === "string") { + if (!typeAliases[clazz]) { + throw new Error("Type alias does not exist"); + } + return typeAliases[clazz](b); + } + return b != null ? b instanceof clazz || b.constructor === clazz : false; + }, owneryQuery, options); + }; + var $and = function (params, ownerQuery, options, name) { return new $And(params, ownerQuery, options, name); }; + var $all = function (params, ownerQuery, options, name) { return new $All(params, ownerQuery, options, name); }; + var $size = function (params, ownerQuery, options) { return new $Size(params, ownerQuery, options, "$size"); }; + var $options = function () { return null; }; + var $where = function (params, ownerQuery, options) { + var test; + if (isFunction(params)) { + test = params; + } + else { + throw new Error("In CSP mode, sift does not support strings in \"$where\" condition"); + } + return new EqualsOperation(function (b) { return test.bind(b)(b); }, ownerQuery, options); + }; + + var defaultOperations = /*#__PURE__*/Object.freeze({ + __proto__: null, + $Size: $Size, + $all: $all, + $and: $and, + $elemMatch: $elemMatch, + $eq: $eq, + $exists: $exists, + $gt: $gt, + $gte: $gte, + $in: $in, + $lt: $lt, + $lte: $lte, + $mod: $mod, + $ne: $ne, + $nin: $nin, + $nor: $nor, + $not: $not, + $options: $options, + $or: $or, + $regex: $regex, + $size: $size, + $type: $type, + $where: $where + }); + + var createDefaultQueryOperation = function (query, ownerQuery, _a) { + var _b = _a === void 0 ? {} : _a, compare = _b.compare, operations = _b.operations; + return createQueryOperation(query, ownerQuery, { + compare: compare, + operations: Object.assign({}, defaultOperations, operations || {}), + }); + }; + var createDefaultQueryTester = function (query, options) { + if (options === void 0) { options = {}; } + var op = createDefaultQueryOperation(query, null, options); + return createOperationTester(op); + }; + + exports.$Size = $Size; + exports.$all = $all; + exports.$and = $and; + exports.$elemMatch = $elemMatch; + exports.$eq = $eq; + exports.$exists = $exists; + exports.$gt = $gt; + exports.$gte = $gte; + exports.$in = $in; + exports.$lt = $lt; + exports.$lte = $lte; + exports.$mod = $mod; + exports.$ne = $ne; + exports.$nin = $nin; + exports.$nor = $nor; + exports.$not = $not; + exports.$options = $options; + exports.$or = $or; + exports.$regex = $regex; + exports.$size = $size; + exports.$type = $type; + exports.$where = $where; + exports.EqualsOperation = EqualsOperation; + exports.createDefaultQueryOperation = createDefaultQueryOperation; + exports.createEqualsOperation = createEqualsOperation; + exports.createOperationTester = createOperationTester; + exports.createQueryOperation = createQueryOperation; + exports.createQueryTester = createQueryTester; + exports.default = createDefaultQueryTester; + + Object.defineProperty(exports, '__esModule', { value: true }); + +})); +//# sourceMappingURL=sift.csp.min.js.map diff --git a/week-3/04-course-app-hard/node_modules/sift/sift.csp.min.js.map b/week-3/04-course-app-hard/node_modules/sift/sift.csp.min.js.map new file mode 100644 index 000000000..681fb85ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/sift.csp.min.js.map @@ -0,0 +1 @@ +{"version":3,"file":"sift.csp.min.js","sources":["node_modules/tslib/tslib.es6.js","src/utils.ts","src/core.ts","src/operations.ts","src/index.ts"],"sourcesContent":["/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? 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(this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n\r\nexport function __classPrivateFieldIn(state, receiver) {\r\n if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\r\n return typeof state === \"function\" ? receiver === state : state.has(receiver);\r\n}\r\n\r\nexport function __addDisposableResource(env, value, async) {\r\n if (value !== null && value !== void 0) {\r\n if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\r\n var dispose;\r\n if (async) {\r\n if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\r\n dispose = value[Symbol.asyncDispose];\r\n }\r\n if (dispose === void 0) {\r\n if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\r\n dispose = value[Symbol.dispose];\r\n }\r\n if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\r\n env.stack.push({ value: value, dispose: dispose, async: async });\r\n }\r\n else if (async) {\r\n env.stack.push({ async: true });\r\n }\r\n return value;\r\n}\r\n\r\nvar _SuppressedError = typeof SuppressedError === \"function\" ? 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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise, SuppressedError, Symbol */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? 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(function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n\r\nexport function __classPrivateFieldIn(state, receiver) {\r\n if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\r\n return typeof state === \"function\" ? receiver === state : state.has(receiver);\r\n}\r\n\r\nexport function __addDisposableResource(env, value, async) {\r\n if (value !== null && value !== void 0) {\r\n if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\r\n var dispose;\r\n if (async) {\r\n if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\r\n dispose = value[Symbol.asyncDispose];\r\n }\r\n if (dispose === void 0) {\r\n if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\r\n dispose = value[Symbol.dispose];\r\n }\r\n if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\r\n env.stack.push({ value: value, dispose: dispose, async: async });\r\n }\r\n else if (async) {\r\n env.stack.push({ async: true });\r\n }\r\n return value;\r\n}\r\n\r\nvar _SuppressedError = typeof SuppressedError === \"function\" ? 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/sift/src/core.ts b/week-3/04-course-app-hard/node_modules/sift/src/core.ts new file mode 100644 index 000000000..68ecea9ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/src/core.ts @@ -0,0 +1,494 @@ +import { + isArray, + Key, + Comparator, + isVanillaObject, + comparable, + equals, + coercePotentiallyNull, + isProperty, +} from "./utils"; + +export interface Operation { + readonly keep: boolean; + readonly done: boolean; + propop: boolean; + reset(); + next(item: TItem, key?: Key, owner?: any, root?: boolean, leaf?: boolean); +} + +export type Tester = ( + item: any, + key?: Key, + owner?: any, + root?: boolean, + leaf?: boolean, +) => boolean; + +export interface NamedOperation { + name: string; +} + +export type OperationCreator = ( + params: any, + parentQuery: any, + options: Options, + name: string, +) => Operation; + +export type BasicValueQuery = { + $eq?: TValue; + $ne?: TValue; + $lt?: TValue; + $gt?: TValue; + $lte?: TValue; + $gte?: TValue; + $in?: TValue[]; + $nin?: TValue[]; + $all?: TValue[]; + $mod?: [number, number]; + $exists?: boolean; + $regex?: string | RegExp; + $size?: number; + $where?: ((this: TValue, obj: TValue) => boolean) | string; + $options?: "i" | "g" | "m" | "u"; + $type?: Function; + $not?: NestedQuery; + $or?: NestedQuery[]; + $nor?: NestedQuery[]; + $and?: NestedQuery[]; +}; + +export type ArrayValueQuery = { + $elemMatch?: Query; +} & BasicValueQuery; +type Unpacked = T extends (infer U)[] ? U : T; + +export type ValueQuery = + TValue extends Array + ? ArrayValueQuery> + : BasicValueQuery; + +type NotObject = string | number | Date | boolean | Array; +export type ShapeQuery = TItemSchema extends NotObject + ? {} + : { [k in keyof TItemSchema]?: TItemSchema[k] | ValueQuery }; + +export type NestedQuery = ValueQuery & + ShapeQuery; +export type Query = + | TItemSchema + | RegExp + | NestedQuery; + +export type QueryOperators = keyof ValueQuery; + +/** + * Walks through each value given the context - used for nested operations. E.g: + * { "person.address": { $eq: "blarg" }} + */ + +const walkKeyPathValues = ( + item: any, + keyPath: Key[], + next: Tester, + depth: number, + key: Key, + owner: any, +) => { + const currentKey = keyPath[depth]; + + // if array, then try matching. Might fall through for cases like: + // { $eq: [1, 2, 3] }, [ 1, 2, 3 ]. + if ( + isArray(item) && + isNaN(Number(currentKey)) && + !isProperty(item, currentKey) + ) { + for (let i = 0, { length } = item; i < length; i++) { + // if FALSE is returned, then terminate walker. For operations, this simply + // means that the search critera was met. + if (!walkKeyPathValues(item[i], keyPath, next, depth, i, item)) { + return false; + } + } + } + + if (depth === keyPath.length || item == null) { + return next(item, key, owner, depth === 0, depth === keyPath.length); + } + + return walkKeyPathValues( + item[currentKey], + keyPath, + next, + depth + 1, + currentKey, + item, + ); +}; + +export abstract class BaseOperation + implements Operation +{ + keep: boolean; + done: boolean; + abstract propop: boolean; + constructor( + readonly params: TParams, + readonly owneryQuery: any, + readonly options: Options, + readonly name?: string, + ) { + this.init(); + } + protected init() {} + reset() { + this.done = false; + this.keep = false; + } + abstract next( + item: any, + key: Key, + parent: any, + root: boolean, + leaf?: boolean, + ); +} + +abstract class GroupOperation extends BaseOperation { + keep: boolean; + done: boolean; + + constructor( + params: any, + owneryQuery: any, + options: Options, + public readonly children: Operation[], + ) { + super(params, owneryQuery, options); + } + + /** + */ + + reset() { + this.keep = false; + this.done = false; + for (let i = 0, { length } = this.children; i < length; i++) { + this.children[i].reset(); + } + } + + abstract next(item: any, key: Key, owner: any, root: boolean); + + /** + */ + + protected childrenNext( + item: any, + key: Key, + owner: any, + root: boolean, + leaf?: boolean, + ) { + let done = true; + let keep = true; + for (let i = 0, { length } = this.children; i < length; i++) { + const childOperation = this.children[i]; + if (!childOperation.done) { + childOperation.next(item, key, owner, root, leaf); + } + if (!childOperation.keep) { + keep = false; + } + if (childOperation.done) { + if (!childOperation.keep) { + break; + } + } else { + done = false; + } + } + this.done = done; + this.keep = keep; + } +} + +export abstract class NamedGroupOperation + extends GroupOperation + implements NamedOperation +{ + abstract propop: boolean; + constructor( + params: any, + owneryQuery: any, + options: Options, + children: Operation[], + readonly name: string, + ) { + super(params, owneryQuery, options, children); + } +} + +export class QueryOperation extends GroupOperation { + readonly propop = true; + /** + */ + + next(item: TItem, key: Key, parent: any, root: boolean) { + this.childrenNext(item, key, parent, root); + } +} + +export class NestedOperation extends GroupOperation { + readonly propop = true; + constructor( + readonly keyPath: Key[], + params: any, + owneryQuery: any, + options: Options, + children: Operation[], + ) { + super(params, owneryQuery, options, children); + } + /** + */ + + next(item: any, key: Key, parent: any) { + walkKeyPathValues( + item, + this.keyPath, + this._nextNestedValue, + 0, + key, + parent, + ); + } + + /** + */ + + private _nextNestedValue = ( + value: any, + key: Key, + owner: any, + root: boolean, + leaf: boolean, + ) => { + this.childrenNext(value, key, owner, root, leaf); + return !this.done; + }; +} + +export const createTester = (a, compare: Comparator) => { + if (a instanceof Function) { + return a; + } + if (a instanceof RegExp) { + return (b) => { + const result = typeof b === "string" && a.test(b); + a.lastIndex = 0; + return result; + }; + } + const comparableA = comparable(a); + return (b) => compare(comparableA, comparable(b)); +}; + +export class EqualsOperation extends BaseOperation { + readonly propop = true; + private _test: Tester; + init() { + this._test = createTester(this.params, this.options.compare); + } + next(item, key: Key, parent: any) { + if (!Array.isArray(parent) || parent.hasOwnProperty(key)) { + if (this._test(item, key, parent)) { + this.done = true; + this.keep = true; + } + } + } +} + +export const createEqualsOperation = ( + params: any, + owneryQuery: any, + options: Options, +) => new EqualsOperation(params, owneryQuery, options); + +export const numericalOperationCreator = + (createNumericalOperation: OperationCreator) => + (params: any, owneryQuery: any, options: Options, name: string) => { + return createNumericalOperation(params, owneryQuery, options, name); + }; + +export const numericalOperation = (createTester: (value: any) => Tester) => + numericalOperationCreator( + (params: any, owneryQuery: Query, options: Options, name: string) => { + const typeofParams = typeof comparable(params); + const test = createTester(params); + return new EqualsOperation( + (b) => { + const actualValue = coercePotentiallyNull(b); + return ( + typeof comparable(actualValue) === typeofParams && test(actualValue) + ); + }, + owneryQuery, + options, + name, + ); + }, + ); + +export type Options = { + operations: { + [identifier: string]: OperationCreator; + }; + compare: (a, b) => boolean; +}; + +const createNamedOperation = ( + name: string, + params: any, + parentQuery: any, + options: Options, +) => { + const operationCreator = options.operations[name]; + if (!operationCreator) { + throwUnsupportedOperation(name); + } + return operationCreator(params, parentQuery, options, name); +}; + +const throwUnsupportedOperation = (name: string) => { + throw new Error(`Unsupported operation: ${name}`); +}; + +export const containsOperation = (query: any, options: Options) => { + for (const key in query) { + if (options.operations.hasOwnProperty(key) || key.charAt(0) === "$") + return true; + } + return false; +}; +const createNestedOperation = ( + keyPath: Key[], + nestedQuery: any, + parentKey: string, + owneryQuery: any, + options: Options, +) => { + if (containsOperation(nestedQuery, options)) { + const [selfOperations, nestedOperations] = createQueryOperations( + nestedQuery, + parentKey, + options, + ); + if (nestedOperations.length) { + throw new Error( + `Property queries must contain only operations, or exact objects.`, + ); + } + return new NestedOperation( + keyPath, + nestedQuery, + owneryQuery, + options, + selfOperations, + ); + } + return new NestedOperation(keyPath, nestedQuery, owneryQuery, options, [ + new EqualsOperation(nestedQuery, owneryQuery, options), + ]); +}; + +export const createQueryOperation = ( + query: Query, + owneryQuery: any = null, + { compare, operations }: Partial = {}, +): QueryOperation => { + const options = { + compare: compare || equals, + operations: Object.assign({}, operations || {}), + }; + + const [selfOperations, nestedOperations] = createQueryOperations( + query, + null, + options, + ); + + const ops = []; + + if (selfOperations.length) { + ops.push( + new NestedOperation([], query, owneryQuery, options, selfOperations), + ); + } + + ops.push(...nestedOperations); + + if (ops.length === 1) { + return ops[0]; + } + return new QueryOperation(query, owneryQuery, options, ops); +}; + +const createQueryOperations = ( + query: any, + parentKey: string, + options: Options, +) => { + const selfOperations = []; + const nestedOperations = []; + if (!isVanillaObject(query)) { + selfOperations.push(new EqualsOperation(query, query, options)); + return [selfOperations, nestedOperations]; + } + for (const key in query) { + if (options.operations.hasOwnProperty(key)) { + const op = createNamedOperation(key, query[key], query, options); + + if (op) { + if (!op.propop && parentKey && !options.operations[parentKey]) { + throw new Error( + `Malformed query. ${key} cannot be matched against property.`, + ); + } + } + + // probably just a flag for another operation (like $options) + if (op != null) { + selfOperations.push(op); + } + } else if (key.charAt(0) === "$") { + throwUnsupportedOperation(key); + } else { + nestedOperations.push( + createNestedOperation(key.split("."), query[key], key, query, options), + ); + } + } + + return [selfOperations, nestedOperations]; +}; + +export const createOperationTester = + (operation: Operation) => + (item: TItem, key?: Key, owner?: any) => { + operation.reset(); + operation.next(item, key, owner); + return operation.keep; + }; + +export const createQueryTester = ( + query: Query, + options: Partial = {}, +) => { + return createOperationTester( + createQueryOperation(query, null, options), + ); +}; diff --git a/week-3/04-course-app-hard/node_modules/sift/src/index.ts b/week-3/04-course-app-hard/node_modules/sift/src/index.ts new file mode 100644 index 000000000..ea733b9a4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/src/index.ts @@ -0,0 +1,54 @@ +import * as defaultOperations from "./operations"; +import { + Query, + QueryOperators, + BasicValueQuery, + ArrayValueQuery, + ValueQuery, + NestedQuery, + ShapeQuery, + Options, + createQueryTester, + EqualsOperation, + createQueryOperation, + createEqualsOperation, + createOperationTester, +} from "./core"; + +const createDefaultQueryOperation = ( + query: Query, + ownerQuery: any, + { compare, operations }: Partial = {}, +) => { + return createQueryOperation(query, ownerQuery, { + compare, + operations: Object.assign({}, defaultOperations, operations || {}), + }); +}; + +const createDefaultQueryTester = ( + query: Query, + options: Partial = {}, +) => { + const op = createDefaultQueryOperation(query, null, options); + return createOperationTester(op); +}; + +export { + Query, + QueryOperators, + BasicValueQuery, + ArrayValueQuery, + ValueQuery, + NestedQuery, + ShapeQuery, + EqualsOperation, + createQueryTester, + createOperationTester, + createDefaultQueryOperation, + createEqualsOperation, + createQueryOperation, +}; +export * from "./operations"; + +export default createDefaultQueryTester; diff --git a/week-3/04-course-app-hard/node_modules/sift/src/operations.ts b/week-3/04-course-app-hard/node_modules/sift/src/operations.ts new file mode 100644 index 000000000..68177b1a7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/src/operations.ts @@ -0,0 +1,422 @@ +import { + BaseOperation, + EqualsOperation, + Options, + createTester, + Tester, + createQueryOperation, + QueryOperation, + Operation, + Query, + NamedGroupOperation, + numericalOperation, + containsOperation, +} from "./core"; +import { Key, comparable, isFunction, isArray } from "./utils"; + +class $Ne extends BaseOperation { + readonly propop = true; + private _test: Tester; + init() { + this._test = createTester(this.params, this.options.compare); + } + reset() { + super.reset(); + this.keep = true; + } + next(item: any) { + if (this._test(item)) { + this.done = true; + this.keep = false; + } + } +} +// https://docs.mongodb.com/manual/reference/operator/query/elemMatch/ +class $ElemMatch extends BaseOperation> { + readonly propop = true; + private _queryOperation: QueryOperation; + init() { + if (!this.params || typeof this.params !== "object") { + throw new Error(`Malformed query. $elemMatch must by an object.`); + } + this._queryOperation = createQueryOperation( + this.params, + this.owneryQuery, + this.options, + ); + } + reset() { + super.reset(); + this._queryOperation.reset(); + } + next(item: any) { + if (isArray(item)) { + for (let i = 0, { length } = item; i < length; i++) { + // reset query operation since item being tested needs to pass _all_ query + // operations for it to be a success + this._queryOperation.reset(); + + const child = item[i]; + this._queryOperation.next(child, i, item, false); + this.keep = this.keep || this._queryOperation.keep; + } + this.done = true; + } else { + this.done = false; + this.keep = false; + } + } +} + +class $Not extends BaseOperation> { + readonly propop = true; + private _queryOperation: QueryOperation; + init() { + this._queryOperation = createQueryOperation( + this.params, + this.owneryQuery, + this.options, + ); + } + reset() { + super.reset(); + this._queryOperation.reset(); + } + next(item: any, key: Key, owner: any, root: boolean) { + this._queryOperation.next(item, key, owner, root); + this.done = this._queryOperation.done; + this.keep = !this._queryOperation.keep; + } +} + +export class $Size extends BaseOperation { + readonly propop = true; + init() {} + next(item) { + if (isArray(item) && item.length === this.params) { + this.done = true; + this.keep = true; + } + // if (parent && parent.length === this.params) { + // this.done = true; + // this.keep = true; + // } + } +} + +const assertGroupNotEmpty = (values: any[]) => { + if (values.length === 0) { + throw new Error(`$and/$or/$nor must be a nonempty array`); + } +}; + +class $Or extends BaseOperation { + readonly propop = false; + private _ops: Operation[]; + init() { + assertGroupNotEmpty(this.params); + this._ops = this.params.map((op) => + createQueryOperation(op, null, this.options), + ); + } + reset() { + this.done = false; + this.keep = false; + for (let i = 0, { length } = this._ops; i < length; i++) { + this._ops[i].reset(); + } + } + next(item: any, key: Key, owner: any) { + let done = false; + let success = false; + for (let i = 0, { length } = this._ops; i < length; i++) { + const op = this._ops[i]; + op.next(item, key, owner); + if (op.keep) { + done = true; + success = op.keep; + break; + } + } + + this.keep = success; + this.done = done; + } +} + +class $Nor extends $Or { + readonly propop = false; + next(item: any, key: Key, owner: any) { + super.next(item, key, owner); + this.keep = !this.keep; + } +} + +class $In extends BaseOperation { + readonly propop = true; + private _testers: Tester[]; + init() { + const params = Array.isArray(this.params) ? this.params : [this.params]; + this._testers = params.map((value) => { + if (containsOperation(value, this.options)) { + throw new Error(`cannot nest $ under ${this.name.toLowerCase()}`); + } + return createTester(value, this.options.compare); + }); + } + next(item: any, key: Key, owner: any) { + let done = false; + let success = false; + for (let i = 0, { length } = this._testers; i < length; i++) { + const test = this._testers[i]; + if (test(item)) { + done = true; + success = true; + break; + } + } + + this.keep = success; + this.done = done; + } +} + +class $Nin extends BaseOperation { + readonly propop = true; + private _in: $In; + constructor(params: any, ownerQuery: any, options: Options, name: string) { + super(params, ownerQuery, options, name); + this._in = new $In(params, ownerQuery, options, name); + } + next(item: any, key: Key, owner: any, root: boolean) { + this._in.next(item, key, owner); + + if (isArray(owner) && !root) { + if (this._in.keep) { + this.keep = false; + this.done = true; + } else if (key == owner.length - 1) { + this.keep = true; + this.done = true; + } + } else { + this.keep = !this._in.keep; + this.done = true; + } + } + reset() { + super.reset(); + this._in.reset(); + } +} + +class $Exists extends BaseOperation { + readonly propop = true; + next(item: any, key: Key, owner: any, root: boolean, leaf?: boolean) { + if (!leaf) { + this.done = true; + this.keep = !this.params; + } else if (owner.hasOwnProperty(key) === this.params) { + this.done = true; + this.keep = true; + } + } +} + +class $And extends NamedGroupOperation { + readonly propop = false; + constructor( + params: Query[], + owneryQuery: Query, + options: Options, + name: string, + ) { + super( + params, + owneryQuery, + options, + params.map((query) => createQueryOperation(query, owneryQuery, options)), + name, + ); + + assertGroupNotEmpty(params); + } + next(item: any, key: Key, owner: any, root: boolean) { + this.childrenNext(item, key, owner, root); + } +} + +class $All extends NamedGroupOperation { + readonly propop = true; + constructor( + params: Query[], + owneryQuery: Query, + options: Options, + name: string, + ) { + super( + params, + owneryQuery, + options, + params.map((query) => createQueryOperation(query, owneryQuery, options)), + name, + ); + } + next(item: any, key: Key, owner: any, root: boolean) { + this.childrenNext(item, key, owner, root); + } +} + +export const $eq = (params: any, owneryQuery: Query, options: Options) => + new EqualsOperation(params, owneryQuery, options); +export const $ne = ( + params: any, + owneryQuery: Query, + options: Options, + name: string, +) => new $Ne(params, owneryQuery, options, name); +export const $or = ( + params: Query[], + owneryQuery: Query, + options: Options, + name: string, +) => new $Or(params, owneryQuery, options, name); +export const $nor = ( + params: Query[], + owneryQuery: Query, + options: Options, + name: string, +) => new $Nor(params, owneryQuery, options, name); +export const $elemMatch = ( + params: any, + owneryQuery: Query, + options: Options, + name: string, +) => new $ElemMatch(params, owneryQuery, options, name); +export const $nin = ( + params: any, + owneryQuery: Query, + options: Options, + name: string, +) => new $Nin(params, owneryQuery, options, name); +export const $in = ( + params: any, + owneryQuery: Query, + options: Options, + name: string, +) => { + return new $In(params, owneryQuery, options, name); +}; + +export const $lt = numericalOperation((params) => (b) => { + return b != null && b < params; +}); +export const $lte = numericalOperation((params) => (b) => { + return b === params || b <= params; +}); +export const $gt = numericalOperation((params) => (b) => { + return b != null && b > params; +}); +export const $gte = numericalOperation((params) => (b) => { + return b === params || b >= params; +}); +export const $mod = ( + [mod, equalsValue]: number[], + owneryQuery: Query, + options: Options, +) => + new EqualsOperation( + (b) => comparable(b) % mod === equalsValue, + owneryQuery, + options, + ); +export const $exists = ( + params: boolean, + owneryQuery: Query, + options: Options, + name: string, +) => new $Exists(params, owneryQuery, options, name); +export const $regex = ( + pattern: string, + owneryQuery: Query, + options: Options, +) => + new EqualsOperation( + new RegExp(pattern, owneryQuery.$options), + owneryQuery, + options, + ); +export const $not = ( + params: any, + owneryQuery: Query, + options: Options, + name: string, +) => new $Not(params, owneryQuery, options, name); + +const typeAliases = { + number: (v) => typeof v === "number", + string: (v) => typeof v === "string", + bool: (v) => typeof v === "boolean", + array: (v) => Array.isArray(v), + null: (v) => v === null, + timestamp: (v) => v instanceof Date, +}; + +export const $type = ( + clazz: Function | string, + owneryQuery: Query, + options: Options, +) => + new EqualsOperation( + (b) => { + if (typeof clazz === "string") { + if (!typeAliases[clazz]) { + throw new Error(`Type alias does not exist`); + } + + return typeAliases[clazz](b); + } + + return b != null ? b instanceof clazz || b.constructor === clazz : false; + }, + owneryQuery, + options, + ); +export const $and = ( + params: Query[], + ownerQuery: Query, + options: Options, + name: string, +) => new $And(params, ownerQuery, options, name); + +export const $all = ( + params: Query[], + ownerQuery: Query, + options: Options, + name: string, +) => new $All(params, ownerQuery, options, name); +export const $size = ( + params: number, + ownerQuery: Query, + options: Options, +) => new $Size(params, ownerQuery, options, "$size"); +export const $options = () => null; +export const $where = ( + params: string | Function, + ownerQuery: Query, + options: Options, +) => { + let test; + + if (isFunction(params)) { + test = params; + } else if (!process.env.CSP_ENABLED) { + test = new Function("obj", "return " + params); + } else { + throw new Error( + `In CSP mode, sift does not support strings in "$where" condition`, + ); + } + + return new EqualsOperation((b) => test.bind(b)(b), ownerQuery, options); +}; diff --git a/week-3/04-course-app-hard/node_modules/sift/src/utils.ts b/week-3/04-course-app-hard/node_modules/sift/src/utils.ts new file mode 100644 index 000000000..02e2a7580 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sift/src/utils.ts @@ -0,0 +1,74 @@ +export type Key = string | number; +export type Comparator = (a, b) => boolean; +export const typeChecker = (type) => { + const typeString = "[object " + type + "]"; + return function (value): value is TType { + return getClassName(value) === typeString; + }; +}; + +const getClassName = (value) => Object.prototype.toString.call(value); + +export const comparable = (value: any) => { + if (value instanceof Date) { + return value.getTime(); + } else if (isArray(value)) { + return value.map(comparable); + } else if (value && typeof value.toJSON === "function") { + return value.toJSON(); + } + + return value; +}; + +export const coercePotentiallyNull = (value: any) => + value == null ? null : value; + +export const isArray = typeChecker>("Array"); +export const isObject = typeChecker("Object"); +export const isFunction = typeChecker("Function"); +export const isProperty = (item: any, key: any) => { + return item.hasOwnProperty(key) && !isFunction(item[key]); +}; +export const isVanillaObject = (value) => { + return ( + value && + (value.constructor === Object || + value.constructor === Array || + value.constructor.toString() === "function Object() { [native code] }" || + value.constructor.toString() === "function Array() { [native code] }") && + !value.toJSON + ); +}; + +export const equals = (a, b) => { + if (a == null && a == b) { + return true; + } + if (a === b) { + return true; + } + + if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) { + return false; + } + + if (isArray(a)) { + if (a.length !== b.length) { + return false; + } + for (let i = 0, { length } = a; i < length; i++) { + if (!equals(a[i], b[i])) return false; + } + return true; + } else if (isObject(a)) { + if (Object.keys(a).length !== Object.keys(b).length) { + return false; + } + for (const key in a) { + if (!equals(a[key], b[key])) return false; + } + return true; + } + return false; +}; diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/.npmignore b/week-3/04-course-app-hard/node_modules/sparse-bitfield/.npmignore new file mode 100644 index 000000000..3c3629e64 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/.npmignore @@ -0,0 +1 @@ +node_modules diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/.travis.yml b/week-3/04-course-app-hard/node_modules/sparse-bitfield/.travis.yml new file mode 100644 index 000000000..c04282170 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/.travis.yml @@ -0,0 +1,6 @@ +language: node_js +node_js: + - '0.10' + - '0.12' + - '4.0' + - '5.0' diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/LICENSE b/week-3/04-course-app-hard/node_modules/sparse-bitfield/LICENSE new file mode 100644 index 000000000..bae9da7bf --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Mathias Buus + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/README.md b/week-3/04-course-app-hard/node_modules/sparse-bitfield/README.md new file mode 100644 index 000000000..7b6b8f9ed --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/README.md @@ -0,0 +1,62 @@ +# sparse-bitfield + +Bitfield implementation that allocates a series of 1kb buffers to support sparse bitfields +without allocating a massive buffer. If you want to simple implementation of a flat bitfield +see the [bitfield](https://github.com/fb55/bitfield) module. + +This module is mostly useful if you need a big bitfield where you won't nessecarily set every bit. + +``` +npm install sparse-bitfield +``` + +[![build status](http://img.shields.io/travis/mafintosh/sparse-bitfield.svg?style=flat)](http://travis-ci.org/mafintosh/sparse-bitfield) + +## Usage + +``` js +var bitfield = require('sparse-bitfield') +var bits = bitfield() + +bits.set(0, true) // set first bit +bits.set(1, true) // set second bit +bits.set(1000000000000, true) // set the 1.000.000.000.000th bit +``` + +Running the above example will allocate two 1kb buffers internally. +Each 1kb buffer can hold information about 8192 bits so the first one will be used to store information about the first two bits and the second will be used to store the 1.000.000.000.000th bit. + +## API + +#### `var bits = bitfield([options])` + +Create a new bitfield. Options include + +``` js +{ + pageSize: 1024, // how big should the partial buffers be + buffer: anExistingBitfield, + trackUpdates: false // track when pages are being updated in the pager +} +``` + +#### `bits.set(index, value)` + +Set a bit to true or false. + +#### `bits.get(index)` + +Get the value of a bit. + +#### `bits.pages` + +A [memory-pager](https://github.com/mafintosh/memory-pager) instance that is managing the underlying memory. +If you set `trackUpdates` to true in the constructor you can use `.lastUpdate()` on this instance to get the last updated memory page. + +#### `var buffer = bits.toBuffer()` + +Get a single buffer representing the entire bitfield. + +## License + +MIT diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/index.js b/week-3/04-course-app-hard/node_modules/sparse-bitfield/index.js new file mode 100644 index 000000000..ff458c974 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/index.js @@ -0,0 +1,95 @@ +var pager = require('memory-pager') + +module.exports = Bitfield + +function Bitfield (opts) { + if (!(this instanceof Bitfield)) return new Bitfield(opts) + if (!opts) opts = {} + if (Buffer.isBuffer(opts)) opts = {buffer: opts} + + this.pageOffset = opts.pageOffset || 0 + this.pageSize = opts.pageSize || 1024 + this.pages = opts.pages || pager(this.pageSize) + + this.byteLength = this.pages.length * this.pageSize + this.length = 8 * this.byteLength + + if (!powerOfTwo(this.pageSize)) throw new Error('The page size should be a power of two') + + this._trackUpdates = !!opts.trackUpdates + this._pageMask = this.pageSize - 1 + + if (opts.buffer) { + for (var i = 0; i < opts.buffer.length; i += this.pageSize) { + this.pages.set(i / this.pageSize, opts.buffer.slice(i, i + this.pageSize)) + } + this.byteLength = opts.buffer.length + this.length = 8 * this.byteLength + } +} + +Bitfield.prototype.get = function (i) { + var o = i & 7 + var j = (i - o) / 8 + + return !!(this.getByte(j) & (128 >> o)) +} + +Bitfield.prototype.getByte = function (i) { + var o = i & this._pageMask + var j = (i - o) / this.pageSize + var page = this.pages.get(j, true) + + return page ? page.buffer[o + this.pageOffset] : 0 +} + +Bitfield.prototype.set = function (i, v) { + var o = i & 7 + var j = (i - o) / 8 + var b = this.getByte(j) + + return this.setByte(j, v ? b | (128 >> o) : b & (255 ^ (128 >> o))) +} + +Bitfield.prototype.toBuffer = function () { + var all = alloc(this.pages.length * this.pageSize) + + for (var i = 0; i < this.pages.length; i++) { + var next = this.pages.get(i, true) + var allOffset = i * this.pageSize + if (next) next.buffer.copy(all, allOffset, this.pageOffset, this.pageOffset + this.pageSize) + } + + return all +} + +Bitfield.prototype.setByte = function (i, b) { + var o = i & this._pageMask + var j = (i - o) / this.pageSize + var page = this.pages.get(j, false) + + o += this.pageOffset + + if (page.buffer[o] === b) return false + page.buffer[o] = b + + if (i >= this.byteLength) { + this.byteLength = i + 1 + this.length = this.byteLength * 8 + } + + if (this._trackUpdates) this.pages.updated(page) + + return true +} + +function alloc (n) { + if (Buffer.alloc) return Buffer.alloc(n) + var b = new Buffer(n) + b.fill(0) + return b +} + +function powerOfTwo (x) { + return !(x & (x - 1)) +} diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/package.json b/week-3/04-course-app-hard/node_modules/sparse-bitfield/package.json new file mode 100644 index 000000000..092a23f61 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/package.json @@ -0,0 +1,27 @@ +{ + "name": "sparse-bitfield", + "version": "3.0.3", + "description": "Bitfield that allocates a series of small buffers to support sparse bits without allocating a massive buffer", + "main": "index.js", + "dependencies": { + "memory-pager": "^1.0.2" + }, + "devDependencies": { + "buffer-alloc": "^1.1.0", + "standard": "^9.0.0", + "tape": "^4.6.3" + }, + "scripts": { + "test": "standard && tape test.js" + }, + "repository": { + "type": "git", + "url": "https://github.com/mafintosh/sparse-bitfield.git" + }, + "author": "Mathias Buus (@mafintosh)", + "license": "MIT", + "bugs": { + "url": "https://github.com/mafintosh/sparse-bitfield/issues" + }, + "homepage": "https://github.com/mafintosh/sparse-bitfield" +} diff --git a/week-3/04-course-app-hard/node_modules/sparse-bitfield/test.js b/week-3/04-course-app-hard/node_modules/sparse-bitfield/test.js new file mode 100644 index 000000000..ae42ef467 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/sparse-bitfield/test.js @@ -0,0 +1,79 @@ +var alloc = require('buffer-alloc') +var tape = require('tape') +var bitfield = require('./') + +tape('set and get', function (t) { + var bits = bitfield() + + t.same(bits.get(0), false, 'first bit is false') + bits.set(0, true) + t.same(bits.get(0), true, 'first bit is true') + t.same(bits.get(1), false, 'second bit is false') + bits.set(0, false) + t.same(bits.get(0), false, 'first bit is reset') + t.end() +}) + +tape('set large and get', function (t) { + var bits = bitfield() + + t.same(bits.get(9999999999999), false, 'large bit is false') + bits.set(9999999999999, true) + t.same(bits.get(9999999999999), true, 'large bit is true') + t.same(bits.get(9999999999999 + 1), false, 'large bit + 1 is false') + bits.set(9999999999999, false) + t.same(bits.get(9999999999999), false, 'large bit is reset') + t.end() +}) + +tape('get and set buffer', function (t) { + var bits = bitfield({trackUpdates: true}) + + t.same(bits.pages.get(0, true), undefined) + t.same(bits.pages.get(Math.floor(9999999999999 / 8 / 1024), true), undefined) + bits.set(9999999999999, true) + + var bits2 = bitfield() + var upd = bits.pages.lastUpdate() + bits2.pages.set(Math.floor(upd.offset / 1024), upd.buffer) + t.same(bits2.get(9999999999999), true, 'bit is set') + t.end() +}) + +tape('toBuffer', function (t) { + var bits = bitfield() + + t.same(bits.toBuffer(), alloc(0)) + + bits.set(0, true) + + t.same(bits.toBuffer(), bits.pages.get(0).buffer) + + bits.set(9000, true) + + t.same(bits.toBuffer(), Buffer.concat([bits.pages.get(0).buffer, bits.pages.get(1).buffer])) + t.end() +}) + +tape('pass in buffer', function (t) { + var bits = bitfield() + + bits.set(0, true) + bits.set(9000, true) + + var clone = bitfield(bits.toBuffer()) + + t.same(clone.get(0), true) + t.same(clone.get(9000), true) + t.end() +}) + +tape('set small buffer', function (t) { + var buf = alloc(1) + buf[0] = 255 + var bits = bitfield(buf) + + t.same(bits.get(0), true) + t.same(bits.pages.get(0).buffer.length, bits.pageSize) + t.end() +}) diff --git a/week-3/04-course-app-hard/node_modules/tr46/LICENSE.md b/week-3/04-course-app-hard/node_modules/tr46/LICENSE.md new file mode 100644 index 000000000..62c0de28a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/LICENSE.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) Sebastian Mayr + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/tr46/README.md b/week-3/04-course-app-hard/node_modules/tr46/README.md new file mode 100644 index 000000000..f4f7607ae --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/README.md @@ -0,0 +1,68 @@ +# tr46 + +An JavaScript implementation of [Unicode Technical Standard #46: Unicode IDNA Compatibility Processing](https://unicode.org/reports/tr46/). + +## API + +### `toASCII(domainName[, options])` + +Converts a string of Unicode symbols to a case-folded Punycode string of ASCII symbols. + +Available options: + +* [`checkBidi`](#checkBidi) +* [`checkHyphens`](#checkHyphens) +* [`checkJoiners`](#checkJoiners) +* [`processingOption`](#processingOption) +* [`useSTD3ASCIIRules`](#useSTD3ASCIIRules) +* [`verifyDNSLength`](#verifyDNSLength) + +### `toUnicode(domainName[, options])` + +Converts a case-folded Punycode string of ASCII symbols to a string of Unicode symbols. + +Available options: + +* [`checkBidi`](#checkBidi) +* [`checkHyphens`](#checkHyphens) +* [`checkJoiners`](#checkJoiners) +* [`processingOption`](#processingOption) +* [`useSTD3ASCIIRules`](#useSTD3ASCIIRules) + +## Options + +### `checkBidi` + +Type: `boolean` +Default value: `false` +When set to `true`, any bi-directional text within the input will be checked for validation. + +### `checkHyphens` + +Type: `boolean` +Default value: `false` +When set to `true`, the positions of any hyphen characters within the input will be checked for validation. + +### `checkJoiners` + +Type: `boolean` +Default value: `false` +When set to `true`, any word joiner characters within the input will be checked for validation. + +### `processingOption` + +Type: `string` +Default value: `"nontransitional"` +When set to `"transitional"`, symbols within the input will be validated according to the older IDNA2003 protocol. When set to `"nontransitional"`, the current IDNA2008 protocol will be used. + +### `useSTD3ASCIIRules` + +Type: `boolean` +Default value: `false` +When set to `true`, input will be validated according to [STD3 Rules](http://unicode.org/reports/tr46/#STD3_Rules). + +### `verifyDNSLength` + +Type: `boolean` +Default value: `false` +When set to `true`, the length of each DNS label within the input will be checked for validation. diff --git a/week-3/04-course-app-hard/node_modules/tr46/index.js b/week-3/04-course-app-hard/node_modules/tr46/index.js new file mode 100644 index 000000000..518eb10b6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/index.js @@ -0,0 +1,300 @@ +"use strict"; + +const punycode = require("punycode/"); +const regexes = require("./lib/regexes.js"); +const mappingTable = require("./lib/mappingTable.json"); +const { STATUS_MAPPING } = require("./lib/statusMapping.js"); + +function containsNonASCII(str) { + return /[^\x00-\x7F]/u.test(str); +} + +function findStatus(val, { useSTD3ASCIIRules }) { + let start = 0; + let end = mappingTable.length - 1; + + while (start <= end) { + const mid = Math.floor((start + end) / 2); + + const target = mappingTable[mid]; + const min = Array.isArray(target[0]) ? target[0][0] : target[0]; + const max = Array.isArray(target[0]) ? target[0][1] : target[0]; + + if (min <= val && max >= val) { + if (useSTD3ASCIIRules && + (target[1] === STATUS_MAPPING.disallowed_STD3_valid || target[1] === STATUS_MAPPING.disallowed_STD3_mapped)) { + return [STATUS_MAPPING.disallowed, ...target.slice(2)]; + } else if (target[1] === STATUS_MAPPING.disallowed_STD3_valid) { + return [STATUS_MAPPING.valid, ...target.slice(2)]; + } else if (target[1] === STATUS_MAPPING.disallowed_STD3_mapped) { + return [STATUS_MAPPING.mapped, ...target.slice(2)]; + } + + return target.slice(1); + } else if (min > val) { + end = mid - 1; + } else { + start = mid + 1; + } + } + + return null; +} + +function mapChars(domainName, { useSTD3ASCIIRules, processingOption }) { + let hasError = false; + let processed = ""; + + for (const ch of domainName) { + const [status, mapping] = findStatus(ch.codePointAt(0), { useSTD3ASCIIRules }); + + switch (status) { + case STATUS_MAPPING.disallowed: + hasError = true; + processed += ch; + break; + case STATUS_MAPPING.ignored: + break; + case STATUS_MAPPING.mapped: + processed += mapping; + break; + case STATUS_MAPPING.deviation: + if (processingOption === "transitional") { + processed += mapping; + } else { + processed += ch; + } + break; + case STATUS_MAPPING.valid: + processed += ch; + break; + } + } + + return { + string: processed, + error: hasError + }; +} + +function validateLabel(label, { checkHyphens, checkBidi, checkJoiners, processingOption, useSTD3ASCIIRules }) { + if (label.normalize("NFC") !== label) { + return false; + } + + const codePoints = Array.from(label); + + if (checkHyphens) { + if ((codePoints[2] === "-" && codePoints[3] === "-") || + (label.startsWith("-") || label.endsWith("-"))) { + return false; + } + } + + if (label.includes(".") || + (codePoints.length > 0 && regexes.combiningMarks.test(codePoints[0]))) { + return false; + } + + for (const ch of codePoints) { + const [status] = findStatus(ch.codePointAt(0), { useSTD3ASCIIRules }); + if ((processingOption === "transitional" && status !== STATUS_MAPPING.valid) || + (processingOption === "nontransitional" && + status !== STATUS_MAPPING.valid && status !== STATUS_MAPPING.deviation)) { + return false; + } + } + + // https://tools.ietf.org/html/rfc5892#appendix-A + if (checkJoiners) { + let last = 0; + for (const [i, ch] of codePoints.entries()) { + if (ch === "\u200C" || ch === "\u200D") { + if (i > 0) { + if (regexes.combiningClassVirama.test(codePoints[i - 1])) { + continue; + } + if (ch === "\u200C") { + // TODO: make this more efficient + const next = codePoints.indexOf("\u200C", i + 1); + const test = next < 0 ? codePoints.slice(last) : codePoints.slice(last, next); + if (regexes.validZWNJ.test(test.join(""))) { + last = i + 1; + continue; + } + } + } + return false; + } + } + } + + // https://tools.ietf.org/html/rfc5893#section-2 + // For the codePoints length check, see discussion in https://github.com/jsdom/whatwg-url/pull/250 and the second item + // in https://github.com/whatwg/url/issues/744. + if (checkBidi && codePoints.length > 0) { + let rtl; + + // 1 + if (regexes.bidiS1LTR.test(codePoints[0])) { + rtl = false; + } else if (regexes.bidiS1RTL.test(codePoints[0])) { + rtl = true; + } else { + return false; + } + + if (rtl) { + // 2-4 + if (!regexes.bidiS2.test(label) || + !regexes.bidiS3.test(label) || + (regexes.bidiS4EN.test(label) && regexes.bidiS4AN.test(label))) { + return false; + } + } else if (!regexes.bidiS5.test(label) || + !regexes.bidiS6.test(label)) { // 5-6 + return false; + } + } + + return true; +} + +function isBidiDomain(labels) { + const domain = labels.map(label => { + if (label.startsWith("xn--")) { + try { + return punycode.decode(label.substring(4)); + } catch (err) { + return ""; + } + } + return label; + }).join("."); + return regexes.bidiDomain.test(domain); +} + +function processing(domainName, options) { + const { processingOption } = options; + + // 1. Map. + let { string, error } = mapChars(domainName, options); + + // 2. Normalize. + string = string.normalize("NFC"); + + // 3. Break. + const labels = string.split("."); + const isBidi = isBidiDomain(labels); + + // 4. Convert/Validate. + for (const [i, origLabel] of labels.entries()) { + let label = origLabel; + let curProcessing = processingOption; + if (label.startsWith("xn--")) { + try { + label = punycode.decode(label.substring(4)); + labels[i] = label; + } catch (err) { + error = true; + continue; + } + curProcessing = "nontransitional"; + } + + // No need to validate if we already know there is an error. + if (error) { + continue; + } + const validation = validateLabel(label, { + ...options, + processingOption: curProcessing, + checkBidi: options.checkBidi && isBidi + }); + if (!validation) { + error = true; + } + } + + return { + string: labels.join("."), + error + }; +} + +function toASCII(domainName, { + checkHyphens = false, + checkBidi = false, + checkJoiners = false, + useSTD3ASCIIRules = false, + processingOption = "nontransitional", + verifyDNSLength = false +} = {}) { + if (processingOption !== "transitional" && processingOption !== "nontransitional") { + throw new RangeError("processingOption must be either transitional or nontransitional"); + } + + const result = processing(domainName, { + processingOption, + checkHyphens, + checkBidi, + checkJoiners, + useSTD3ASCIIRules + }); + let labels = result.string.split("."); + labels = labels.map(l => { + if (containsNonASCII(l)) { + try { + return `xn--${punycode.encode(l)}`; + } catch (e) { + result.error = true; + } + } + return l; + }); + + if (verifyDNSLength) { + const total = labels.join(".").length; + if (total > 253 || total === 0) { + result.error = true; + } + + for (let i = 0; i < labels.length; ++i) { + if (labels[i].length > 63 || labels[i].length === 0) { + result.error = true; + break; + } + } + } + + if (result.error) { + return null; + } + return labels.join("."); +} + +function toUnicode(domainName, { + checkHyphens = false, + checkBidi = false, + checkJoiners = false, + useSTD3ASCIIRules = false, + processingOption = "nontransitional" +} = {}) { + const result = processing(domainName, { + processingOption, + checkHyphens, + checkBidi, + checkJoiners, + useSTD3ASCIIRules + }); + + return { + domain: result.string, + error: result.error + }; +} + +module.exports = { + toASCII, + toUnicode +}; diff --git a/week-3/04-course-app-hard/node_modules/tr46/lib/mappingTable.json b/week-3/04-course-app-hard/node_modules/tr46/lib/mappingTable.json new file mode 100644 index 000000000..483ca3b9d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/lib/mappingTable.json @@ -0,0 +1 @@ +[[[0,44],4],[[45,46],2],[47,4],[[48,57],2],[[58,64],4],[65,1,"a"],[66,1,"b"],[67,1,"c"],[68,1,"d"],[69,1,"e"],[70,1,"f"],[71,1,"g"],[72,1,"h"],[73,1,"i"],[74,1,"j"],[75,1,"k"],[76,1,"l"],[77,1,"m"],[78,1,"n"],[79,1,"o"],[80,1,"p"],[81,1,"q"],[82,1,"r"],[83,1,"s"],[84,1,"t"],[85,1,"u"],[86,1,"v"],[87,1,"w"],[88,1,"x"],[89,1,"y"],[90,1,"z"],[[91,96],4],[[97,122],2],[[123,127],4],[[128,159],3],[160,5," "],[[161,167],2],[168,5," 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\ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/tr46/lib/regexes.js b/week-3/04-course-app-hard/node_modules/tr46/lib/regexes.js new file mode 100644 index 000000000..14a5bf985 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/lib/regexes.js @@ -0,0 +1,29 @@ +"use strict"; + +const combiningMarks = /[\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u09FE\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B55-\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C04\u0C3C\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0CF3\u0D00-\u0D03\u0D3B\u0D3C\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D81-\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1715\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u180F\u1885\u1886\u18A9\u1920-\u192B\u1930-\u193B\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF4\u1CF7-\u1CF9\u1DC0-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA82C\uA880\uA881\uA8B4-\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11000}-\u{11002}\u{11038}-\u{11046}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11082}\u{110B0}-\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{11134}\u{11145}\u{11146}\u{11173}\u{11180}-\u{11182}\u{111B3}-\u{111C0}\u{111C9}-\u{111CC}\u{111CE}\u{111CF}\u{1122C}-\u{11237}\u{1123E}\u{11241}\u{112DF}-\u{112EA}\u{11300}-\u{11303}\u{1133B}\u{1133C}\u{1133E}-\u{11344}\u{11347}\u{11348}\u{1134B}-\u{1134D}\u{11357}\u{11362}\u{11363}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11435}-\u{11446}\u{1145E}\u{114B0}-\u{114C3}\u{115AF}-\u{115B5}\u{115B8}-\u{115C0}\u{115DC}\u{115DD}\u{11630}-\u{11640}\u{116AB}-\u{116B7}\u{1171D}-\u{1172B}\u{1182C}-\u{1183A}\u{11930}-\u{11935}\u{11937}\u{11938}\u{1193B}-\u{1193E}\u{11940}\u{11942}\u{11943}\u{119D1}-\u{119D7}\u{119DA}-\u{119E0}\u{119E4}\u{11A01}-\u{11A0A}\u{11A33}-\u{11A39}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A5B}\u{11A8A}-\u{11A99}\u{11C2F}-\u{11C36}\u{11C38}-\u{11C3F}\u{11C92}-\u{11CA7}\u{11CA9}-\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D8A}-\u{11D8E}\u{11D90}\u{11D91}\u{11D93}-\u{11D97}\u{11EF3}-\u{11EF6}\u{11F00}\u{11F01}\u{11F03}\u{11F34}-\u{11F3A}\u{11F3E}-\u{11F42}\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F51}-\u{16F87}\u{16F8F}-\u{16F92}\u{16FE4}\u{16FF0}\u{16FF1}\u{1BC9D}\u{1BC9E}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D165}-\u{1D169}\u{1D16D}-\u{1D172}\u{1D17B}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E4EC}-\u{1E4EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94A}\u{E0100}-\u{E01EF}]/u; +const combiningClassVirama = /[\u094D\u09CD\u0A4D\u0ACD\u0B4D\u0BCD\u0C4D\u0CCD\u0D3B\u0D3C\u0D4D\u0DCA\u0E3A\u0EBA\u0F84\u1039\u103A\u1714\u1734\u17D2\u1A60\u1B44\u1BAA\u1BAB\u1BF2\u1BF3\u2D7F\uA806\uA8C4\uA953\uA9C0\uAAF6\uABED\u{10A3F}\u{11046}\u{1107F}\u{110B9}\u{11133}\u{11134}\u{111C0}\u{11235}\u{112EA}\u{1134D}\u{11442}\u{114C2}\u{115BF}\u{1163F}\u{116B6}\u{1172B}\u{11839}\u{119E0}\u{11A34}\u{11A47}\u{11A99}\u{11C3F}\u{11D44}\u{11D45}\u{11D97}]/u; +const validZWNJ = /[\u0620\u0626\u0628\u062A-\u062E\u0633-\u063F\u0641-\u0647\u0649\u064A\u066E\u066F\u0678-\u0687\u069A-\u06BF\u06C1\u06C2\u06CC\u06CE\u06D0\u06D1\u06FA-\u06FC\u06FF\u0712-\u0714\u071A-\u071D\u071F-\u0727\u0729\u072B\u072D\u072E\u074E-\u0758\u075C-\u076A\u076D-\u0770\u0772\u0775-\u0777\u077A-\u077F\u07CA-\u07EA\u0841-\u0845\u0848\u084A-\u0853\u0855\u0860\u0862-\u0865\u0868\u08A0-\u08A9\u08AF\u08B0\u08B3\u08B4\u08B6-\u08B8\u08BA-\u08BD\u1807\u1820-\u1878\u1887-\u18A8\u18AA\uA840-\uA872\u{10AC0}-\u{10AC4}\u{10ACD}\u{10AD3}-\u{10ADC}\u{10ADE}-\u{10AE0}\u{10AEB}-\u{10AEE}\u{10B80}\u{10B82}\u{10B86}-\u{10B88}\u{10B8A}\u{10B8B}\u{10B8D}\u{10B90}\u{10BAD}\u{10BAE}\u{10D00}-\u{10D21}\u{10D23}\u{10F30}-\u{10F32}\u{10F34}-\u{10F44}\u{10F51}-\u{10F53}\u{1E900}-\u{1E943}][\xAD\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u061C\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u070F\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08D3-\u08E1\u08E3-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C00\u0C04\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81\u0CBC\u0CBF\u0CC6\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF9\u1DFB-\u1DFF\u200B\u200E\u200F\u202A-\u202E\u2060-\u2064\u206A-\u206F\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFEFF\uFFF9-\uFFFB\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10F46}-\u{10F50}\u{11001}\u{11038}-\u{11046}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C3F}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{13430}-\u{13438}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{1BC9D}\u{1BC9E}\u{1BCA0}-\u{1BCA3}\u{1D167}-\u{1D169}\u{1D173}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E130}-\u{1E136}\u{1E2EC}-\u{1E2EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94B}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}]*\u200C[\xAD\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u061C\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u070F\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08D3-\u08E1\u08E3-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C00\u0C04\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81\u0CBC\u0CBF\u0CC6\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF9\u1DFB-\u1DFF\u200B\u200E\u200F\u202A-\u202E\u2060-\u2064\u206A-\u206F\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFEFF\uFFF9-\uFFFB\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10F46}-\u{10F50}\u{11001}\u{11038}-\u{11046}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C3F}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{13430}-\u{13438}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{1BC9D}\u{1BC9E}\u{1BCA0}-\u{1BCA3}\u{1D167}-\u{1D169}\u{1D173}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E130}-\u{1E136}\u{1E2EC}-\u{1E2EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94B}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}]*[\u0620\u0622-\u063F\u0641-\u064A\u066E\u066F\u0671-\u0673\u0675-\u06D3\u06D5\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u077F\u07CA-\u07EA\u0840-\u0855\u0860\u0862-\u0865\u0867-\u086A\u08A0-\u08AC\u08AE-\u08B4\u08B6-\u08BD\u1807\u1820-\u1878\u1887-\u18A8\u18AA\uA840-\uA871\u{10AC0}-\u{10AC5}\u{10AC7}\u{10AC9}\u{10ACA}\u{10ACE}-\u{10AD6}\u{10AD8}-\u{10AE1}\u{10AE4}\u{10AEB}-\u{10AEF}\u{10B80}-\u{10B91}\u{10BA9}-\u{10BAE}\u{10D01}-\u{10D23}\u{10F30}-\u{10F44}\u{10F51}-\u{10F54}\u{1E900}-\u{1E943}]/u; +const bidiDomain = /[\u05BE\u05C0\u05C3\u05C6\u05D0-\u05EA\u05EF-\u05F4\u0600-\u0605\u0608\u060B\u060D\u061B-\u064A\u0660-\u0669\u066B-\u066F\u0671-\u06D5\u06DD\u06E5\u06E6\u06EE\u06EF\u06FA-\u070D\u070F\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07C0-\u07EA\u07F4\u07F5\u07FA\u07FE-\u0815\u081A\u0824\u0828\u0830-\u083E\u0840-\u0858\u085E\u0860-\u086A\u0870-\u088E\u0890\u0891\u08A0-\u08C9\u08E2\u200F\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFC\uFE70-\uFE74\uFE76-\uFEFC\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{10920}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A00}\u{10A10}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A40}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE4}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B40}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D23}\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}\u{10E80}-\u{10EA9}\u{10EAD}\u{10EB0}\u{10EB1}\u{10F00}-\u{10F27}\u{10F30}-\u{10F45}\u{10F51}-\u{10F59}\u{10F70}-\u{10F81}\u{10F86}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8CF}\u{1E900}-\u{1E943}\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}]/u; +const bidiS1LTR = /[A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02B8\u02BB-\u02C1\u02D0\u02D1\u02E0-\u02E4\u02EE\u0370-\u0373\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0482\u048A-\u052F\u0531-\u0556\u0559-\u0589\u0903-\u0939\u093B\u093D-\u0940\u0949-\u094C\u094E-\u0950\u0958-\u0961\u0964-\u0980\u0982\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD-\u09C0\u09C7\u09C8\u09CB\u09CC\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E1\u09E6-\u09F1\u09F4-\u09FA\u09FC\u09FD\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3E-\u0A40\u0A59-\u0A5C\u0A5E\u0A66-\u0A6F\u0A72-\u0A74\u0A76\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD-\u0AC0\u0AC9\u0ACB\u0ACC\u0AD0\u0AE0\u0AE1\u0AE6-\u0AF0\u0AF9\u0B02\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B3E\u0B40\u0B47\u0B48\u0B4B\u0B4C\u0B57\u0B5C\u0B5D\u0B5F-\u0B61\u0B66-\u0B77\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE\u0BBF\u0BC1\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCC\u0BD0\u0BD7\u0BE6-\u0BF2\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C41-\u0C44\u0C58-\u0C5A\u0C5D\u0C60\u0C61\u0C66-\u0C6F\u0C77\u0C7F\u0C80\u0C82-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD-\u0CC4\u0CC6-\u0CC8\u0CCA\u0CCB\u0CD5\u0CD6\u0CDD\u0CDE\u0CE0\u0CE1\u0CE6-\u0CEF\u0CF1-\u0CF3\u0D02-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D40\u0D46-\u0D48\u0D4A-\u0D4C\u0D4E\u0D4F\u0D54-\u0D61\u0D66-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCF-\u0DD1\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2-\u0DF4\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E4F-\u0E5B\u0E81\u0E82\u0E84\u0E86-\u0E8A\u0E8C-\u0EA3\u0EA5\u0EA7-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00-\u0F17\u0F1A-\u0F34\u0F36\u0F38\u0F3E-\u0F47\u0F49-\u0F6C\u0F7F\u0F85\u0F88-\u0F8C\u0FBE-\u0FC5\u0FC7-\u0FCC\u0FCE-\u0FDA\u1000-\u102C\u1031\u1038\u103B\u103C\u103F-\u1057\u105A-\u105D\u1061-\u1070\u1075-\u1081\u1083\u1084\u1087-\u108C\u108E-\u109C\u109E-\u10C5\u10C7\u10CD\u10D0-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1360-\u137C\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u167F\u1681-\u169A\u16A0-\u16F8\u1700-\u1711\u1715\u171F-\u1731\u1734-\u1736\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17B6\u17BE-\u17C5\u17C7\u17C8\u17D4-\u17DA\u17DC\u17E0-\u17E9\u1810-\u1819\u1820-\u1878\u1880-\u1884\u1887-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1923-\u1926\u1929-\u192B\u1930\u1931\u1933-\u1938\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u1A00-\u1A16\u1A19\u1A1A\u1A1E-\u1A55\u1A57\u1A61\u1A63\u1A64\u1A6D-\u1A72\u1A80-\u1A89\u1A90-\u1A99\u1AA0-\u1AAD\u1B04-\u1B33\u1B35\u1B3B\u1B3D-\u1B41\u1B43-\u1B4C\u1B50-\u1B6A\u1B74-\u1B7E\u1B82-\u1BA1\u1BA6\u1BA7\u1BAA\u1BAE-\u1BE5\u1BE7\u1BEA-\u1BEC\u1BEE\u1BF2\u1BF3\u1BFC-\u1C2B\u1C34\u1C35\u1C3B-\u1C49\u1C4D-\u1C88\u1C90-\u1CBA\u1CBD-\u1CC7\u1CD3\u1CE1\u1CE9-\u1CEC\u1CEE-\u1CF3\u1CF5-\u1CF7\u1CFA\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200E\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u214F\u2160-\u2188\u2336-\u237A\u2395\u249C-\u24E9\u26AC\u2800-\u28FF\u2C00-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D70\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u302E\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312F\u3131-\u318E\u3190-\u31BF\u31F0-\u321C\u3220-\u324F\u3260-\u327B\u327F-\u32B0\u32C0-\u32CB\u32D0-\u3376\u337B-\u33DD\u33E0-\u33FE\u3400-\u4DBF\u4E00-\uA48C\uA4D0-\uA60C\uA610-\uA62B\uA640-\uA66E\uA680-\uA69D\uA6A0-\uA6EF\uA6F2-\uA6F7\uA722-\uA787\uA789-\uA7CA\uA7D0\uA7D1\uA7D3\uA7D5-\uA7D9\uA7F2-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA824\uA827\uA830-\uA837\uA840-\uA873\uA880-\uA8C3\uA8CE-\uA8D9\uA8F2-\uA8FE\uA900-\uA925\uA92E-\uA946\uA952\uA953\uA95F-\uA97C\uA983-\uA9B2\uA9B4\uA9B5\uA9BA\uA9BB\uA9BE-\uA9CD\uA9CF-\uA9D9\uA9DE-\uA9E4\uA9E6-\uA9FE\uAA00-\uAA28\uAA2F\uAA30\uAA33\uAA34\uAA40-\uAA42\uAA44-\uAA4B\uAA4D\uAA50-\uAA59\uAA5C-\uAA7B\uAA7D-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAAEB\uAAEE-\uAAF5\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB69\uAB70-\uABE4\uABE6\uABE7\uABE9-\uABEC\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uD800-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC\u{10000}-\u{1000B}\u{1000D}-\u{10026}\u{10028}-\u{1003A}\u{1003C}\u{1003D}\u{1003F}-\u{1004D}\u{10050}-\u{1005D}\u{10080}-\u{100FA}\u{10100}\u{10102}\u{10107}-\u{10133}\u{10137}-\u{1013F}\u{1018D}\u{1018E}\u{101D0}-\u{101FC}\u{10280}-\u{1029C}\u{102A0}-\u{102D0}\u{10300}-\u{10323}\u{1032D}-\u{1034A}\u{10350}-\u{10375}\u{10380}-\u{1039D}\u{1039F}-\u{103C3}\u{103C8}-\u{103D5}\u{10400}-\u{1049D}\u{104A0}-\u{104A9}\u{104B0}-\u{104D3}\u{104D8}-\u{104FB}\u{10500}-\u{10527}\u{10530}-\u{10563}\u{1056F}-\u{1057A}\u{1057C}-\u{1058A}\u{1058C}-\u{10592}\u{10594}\u{10595}\u{10597}-\u{105A1}\u{105A3}-\u{105B1}\u{105B3}-\u{105B9}\u{105BB}\u{105BC}\u{10600}-\u{10736}\u{10740}-\u{10755}\u{10760}-\u{10767}\u{10780}-\u{10785}\u{10787}-\u{107B0}\u{107B2}-\u{107BA}\u{11000}\u{11002}-\u{11037}\u{11047}-\u{1104D}\u{11066}-\u{1106F}\u{11071}\u{11072}\u{11075}\u{11082}-\u{110B2}\u{110B7}\u{110B8}\u{110BB}-\u{110C1}\u{110CD}\u{110D0}-\u{110E8}\u{110F0}-\u{110F9}\u{11103}-\u{11126}\u{1112C}\u{11136}-\u{11147}\u{11150}-\u{11172}\u{11174}-\u{11176}\u{11182}-\u{111B5}\u{111BF}-\u{111C8}\u{111CD}\u{111CE}\u{111D0}-\u{111DF}\u{111E1}-\u{111F4}\u{11200}-\u{11211}\u{11213}-\u{1122E}\u{11232}\u{11233}\u{11235}\u{11238}-\u{1123D}\u{1123F}\u{11240}\u{11280}-\u{11286}\u{11288}\u{1128A}-\u{1128D}\u{1128F}-\u{1129D}\u{1129F}-\u{112A9}\u{112B0}-\u{112DE}\u{112E0}-\u{112E2}\u{112F0}-\u{112F9}\u{11302}\u{11303}\u{11305}-\u{1130C}\u{1130F}\u{11310}\u{11313}-\u{11328}\u{1132A}-\u{11330}\u{11332}\u{11333}\u{11335}-\u{11339}\u{1133D}-\u{1133F}\u{11341}-\u{11344}\u{11347}\u{11348}\u{1134B}-\u{1134D}\u{11350}\u{11357}\u{1135D}-\u{11363}\u{11400}-\u{11437}\u{11440}\u{11441}\u{11445}\u{11447}-\u{1145B}\u{1145D}\u{1145F}-\u{11461}\u{11480}-\u{114B2}\u{114B9}\u{114BB}-\u{114BE}\u{114C1}\u{114C4}-\u{114C7}\u{114D0}-\u{114D9}\u{11580}-\u{115B1}\u{115B8}-\u{115BB}\u{115BE}\u{115C1}-\u{115DB}\u{11600}-\u{11632}\u{1163B}\u{1163C}\u{1163E}\u{11641}-\u{11644}\u{11650}-\u{11659}\u{11680}-\u{116AA}\u{116AC}\u{116AE}\u{116AF}\u{116B6}\u{116B8}\u{116B9}\u{116C0}-\u{116C9}\u{11700}-\u{1171A}\u{11720}\u{11721}\u{11726}\u{11730}-\u{11746}\u{11800}-\u{1182E}\u{11838}\u{1183B}\u{118A0}-\u{118F2}\u{118FF}-\u{11906}\u{11909}\u{1190C}-\u{11913}\u{11915}\u{11916}\u{11918}-\u{11935}\u{11937}\u{11938}\u{1193D}\u{1193F}-\u{11942}\u{11944}-\u{11946}\u{11950}-\u{11959}\u{119A0}-\u{119A7}\u{119AA}-\u{119D3}\u{119DC}-\u{119DF}\u{119E1}-\u{119E4}\u{11A00}\u{11A07}\u{11A08}\u{11A0B}-\u{11A32}\u{11A39}\u{11A3A}\u{11A3F}-\u{11A46}\u{11A50}\u{11A57}\u{11A58}\u{11A5C}-\u{11A89}\u{11A97}\u{11A9A}-\u{11AA2}\u{11AB0}-\u{11AF8}\u{11B00}-\u{11B09}\u{11C00}-\u{11C08}\u{11C0A}-\u{11C2F}\u{11C3E}-\u{11C45}\u{11C50}-\u{11C6C}\u{11C70}-\u{11C8F}\u{11CA9}\u{11CB1}\u{11CB4}\u{11D00}-\u{11D06}\u{11D08}\u{11D09}\u{11D0B}-\u{11D30}\u{11D46}\u{11D50}-\u{11D59}\u{11D60}-\u{11D65}\u{11D67}\u{11D68}\u{11D6A}-\u{11D8E}\u{11D93}\u{11D94}\u{11D96}\u{11D98}\u{11DA0}-\u{11DA9}\u{11EE0}-\u{11EF2}\u{11EF5}-\u{11EF8}\u{11F02}-\u{11F10}\u{11F12}-\u{11F35}\u{11F3E}\u{11F3F}\u{11F41}\u{11F43}-\u{11F59}\u{11FB0}\u{11FC0}-\u{11FD4}\u{11FFF}-\u{12399}\u{12400}-\u{1246E}\u{12470}-\u{12474}\u{12480}-\u{12543}\u{12F90}-\u{12FF2}\u{13000}-\u{1343F}\u{13441}-\u{13446}\u{14400}-\u{14646}\u{16800}-\u{16A38}\u{16A40}-\u{16A5E}\u{16A60}-\u{16A69}\u{16A6E}-\u{16ABE}\u{16AC0}-\u{16AC9}\u{16AD0}-\u{16AED}\u{16AF5}\u{16B00}-\u{16B2F}\u{16B37}-\u{16B45}\u{16B50}-\u{16B59}\u{16B5B}-\u{16B61}\u{16B63}-\u{16B77}\u{16B7D}-\u{16B8F}\u{16E40}-\u{16E9A}\u{16F00}-\u{16F4A}\u{16F50}-\u{16F87}\u{16F93}-\u{16F9F}\u{16FE0}\u{16FE1}\u{16FE3}\u{16FF0}\u{16FF1}\u{17000}-\u{187F7}\u{18800}-\u{18CD5}\u{18D00}-\u{18D08}\u{1AFF0}-\u{1AFF3}\u{1AFF5}-\u{1AFFB}\u{1AFFD}\u{1AFFE}\u{1B000}-\u{1B122}\u{1B132}\u{1B150}-\u{1B152}\u{1B155}\u{1B164}-\u{1B167}\u{1B170}-\u{1B2FB}\u{1BC00}-\u{1BC6A}\u{1BC70}-\u{1BC7C}\u{1BC80}-\u{1BC88}\u{1BC90}-\u{1BC99}\u{1BC9C}\u{1BC9F}\u{1CF50}-\u{1CFC3}\u{1D000}-\u{1D0F5}\u{1D100}-\u{1D126}\u{1D129}-\u{1D166}\u{1D16A}-\u{1D172}\u{1D183}\u{1D184}\u{1D18C}-\u{1D1A9}\u{1D1AE}-\u{1D1E8}\u{1D2C0}-\u{1D2D3}\u{1D2E0}-\u{1D2F3}\u{1D360}-\u{1D378}\u{1D400}-\u{1D454}\u{1D456}-\u{1D49C}\u{1D49E}\u{1D49F}\u{1D4A2}\u{1D4A5}\u{1D4A6}\u{1D4A9}-\u{1D4AC}\u{1D4AE}-\u{1D4B9}\u{1D4BB}\u{1D4BD}-\u{1D4C3}\u{1D4C5}-\u{1D505}\u{1D507}-\u{1D50A}\u{1D50D}-\u{1D514}\u{1D516}-\u{1D51C}\u{1D51E}-\u{1D539}\u{1D53B}-\u{1D53E}\u{1D540}-\u{1D544}\u{1D546}\u{1D54A}-\u{1D550}\u{1D552}-\u{1D6A5}\u{1D6A8}-\u{1D6DA}\u{1D6DC}-\u{1D714}\u{1D716}-\u{1D74E}\u{1D750}-\u{1D788}\u{1D78A}-\u{1D7C2}\u{1D7C4}-\u{1D7CB}\u{1D800}-\u{1D9FF}\u{1DA37}-\u{1DA3A}\u{1DA6D}-\u{1DA74}\u{1DA76}-\u{1DA83}\u{1DA85}-\u{1DA8B}\u{1DF00}-\u{1DF1E}\u{1DF25}-\u{1DF2A}\u{1E030}-\u{1E06D}\u{1E100}-\u{1E12C}\u{1E137}-\u{1E13D}\u{1E140}-\u{1E149}\u{1E14E}\u{1E14F}\u{1E290}-\u{1E2AD}\u{1E2C0}-\u{1E2EB}\u{1E2F0}-\u{1E2F9}\u{1E4D0}-\u{1E4EB}\u{1E4F0}-\u{1E4F9}\u{1E7E0}-\u{1E7E6}\u{1E7E8}-\u{1E7EB}\u{1E7ED}\u{1E7EE}\u{1E7F0}-\u{1E7FE}\u{1F110}-\u{1F12E}\u{1F130}-\u{1F169}\u{1F170}-\u{1F1AC}\u{1F1E6}-\u{1F202}\u{1F210}-\u{1F23B}\u{1F240}-\u{1F248}\u{1F250}\u{1F251}\u{20000}-\u{2A6DF}\u{2A700}-\u{2B739}\u{2B740}-\u{2B81D}\u{2B820}-\u{2CEA1}\u{2CEB0}-\u{2EBE0}\u{2F800}-\u{2FA1D}\u{30000}-\u{3134A}\u{31350}-\u{323AF}\u{F0000}-\u{FFFFD}\u{100000}-\u{10FFFD}]/u; +const bidiS1RTL = /[\u05BE\u05C0\u05C3\u05C6\u05D0-\u05EA\u05EF-\u05F4\u0608\u060B\u060D\u061B-\u064A\u066D-\u066F\u0671-\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u070D\u070F\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07C0-\u07EA\u07F4\u07F5\u07FA\u07FE-\u0815\u081A\u0824\u0828\u0830-\u083E\u0840-\u0858\u085E\u0860-\u086A\u0870-\u088E\u08A0-\u08C9\u200F\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFC\uFE70-\uFE74\uFE76-\uFEFC\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{10920}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A00}\u{10A10}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A40}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE4}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B40}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D23}\u{10E80}-\u{10EA9}\u{10EAD}\u{10EB0}\u{10EB1}\u{10F00}-\u{10F27}\u{10F30}-\u{10F45}\u{10F51}-\u{10F59}\u{10F70}-\u{10F81}\u{10F86}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8CF}\u{1E900}-\u{1E943}\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}]/u; +const bidiS2 = /^[\0-\x08\x0E-\x1B!-@\[-`\{-\x84\x86-\xA9\xAB-\xB4\xB6-\xB9\xBB-\xBF\xD7\xF7\u02B9\u02BA\u02C2-\u02CF\u02D2-\u02DF\u02E5-\u02ED\u02EF-\u036F\u0374\u0375\u037E\u0384\u0385\u0387\u03F6\u0483-\u0489\u058A\u058D-\u058F\u0591-\u05C7\u05D0-\u05EA\u05EF-\u05F4\u0600-\u070D\u070F-\u074A\u074D-\u07B1\u07C0-\u07FA\u07FD-\u082D\u0830-\u083E\u0840-\u085B\u085E\u0860-\u086A\u0870-\u088E\u0890\u0891\u0898-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09F2\u09F3\u09FB\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AF1\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B55\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0BF3-\u0BFA\u0C00\u0C04\u0C3C\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C78-\u0C7E\u0C81\u0CBC\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0D81\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E3F\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39-\u0F3D\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1390-\u1399\u1400\u169B\u169C\u1712-\u1714\u1732\u1733\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DB\u17DD\u17F0-\u17F9\u1800-\u180F\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1940\u1944\u1945\u19DE-\u19FF\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DFF\u1FBD\u1FBF-\u1FC1\u1FCD-\u1FCF\u1FDD-\u1FDF\u1FED-\u1FEF\u1FFD\u1FFE\u200B-\u200D\u200F-\u2027\u202F-\u205E\u2060-\u2064\u206A-\u2070\u2074-\u207E\u2080-\u208E\u20A0-\u20C0\u20D0-\u20F0\u2100\u2101\u2103-\u2106\u2108\u2109\u2114\u2116-\u2118\u211E-\u2123\u2125\u2127\u2129\u212E\u213A\u213B\u2140-\u2144\u214A-\u214D\u2150-\u215F\u2189-\u218B\u2190-\u2335\u237B-\u2394\u2396-\u2426\u2440-\u244A\u2460-\u249B\u24EA-\u26AB\u26AD-\u27FF\u2900-\u2B73\u2B76-\u2B95\u2B97-\u2BFF\u2CE5-\u2CEA\u2CEF-\u2CF1\u2CF9-\u2CFF\u2D7F\u2DE0-\u2E5D\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFB\u3001-\u3004\u3008-\u3020\u302A-\u302D\u3030\u3036\u3037\u303D-\u303F\u3099-\u309C\u30A0\u30FB\u31C0-\u31E3\u321D\u321E\u3250-\u325F\u327C-\u327E\u32B1-\u32BF\u32CC-\u32CF\u3377-\u337A\u33DE\u33DF\u33FF\u4DC0-\u4DFF\uA490-\uA4C6\uA60D-\uA60F\uA66F-\uA67F\uA69E\uA69F\uA6F0\uA6F1\uA700-\uA721\uA788\uA802\uA806\uA80B\uA825\uA826\uA828-\uA82C\uA838\uA839\uA874-\uA877\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uAB6A\uAB6B\uABE5\uABE8\uABED\uFB1D-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD8F\uFD92-\uFDC7\uFDCF\uFDF0-\uFE19\uFE20-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFE70-\uFE74\uFE76-\uFEFC\uFEFF\uFF01-\uFF20\uFF3B-\uFF40\uFF5B-\uFF65\uFFE0-\uFFE6\uFFE8-\uFFEE\uFFF9-\uFFFD\u{10101}\u{10140}-\u{1018C}\u{10190}-\u{1019C}\u{101A0}\u{101FD}\u{102E0}-\u{102FB}\u{10376}-\u{1037A}\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{1091F}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A38}-\u{10A3A}\u{10A3F}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE6}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B39}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D27}\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}\u{10E80}-\u{10EA9}\u{10EAB}-\u{10EAD}\u{10EB0}\u{10EB1}\u{10EFD}-\u{10F27}\u{10F30}-\u{10F59}\u{10F70}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{11001}\u{11038}-\u{11046}\u{11052}-\u{11065}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{111CF}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{11241}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{11660}-\u{1166C}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{1193B}\u{1193C}\u{1193E}\u{11943}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A06}\u{11A09}\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{11F00}\u{11F01}\u{11F36}-\u{11F3A}\u{11F40}\u{11F42}\u{11FD5}-\u{11FF1}\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{16FE2}\u{16FE4}\u{1BC9D}\u{1BC9E}\u{1BCA0}-\u{1BCA3}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D167}-\u{1D169}\u{1D173}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D1E9}\u{1D1EA}\u{1D200}-\u{1D245}\u{1D300}-\u{1D356}\u{1D6DB}\u{1D715}\u{1D74F}\u{1D789}\u{1D7C3}\u{1D7CE}-\u{1D7FF}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E2FF}\u{1E4EC}-\u{1E4EF}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8D6}\u{1E900}-\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}\u{1EEF0}\u{1EEF1}\u{1F000}-\u{1F02B}\u{1F030}-\u{1F093}\u{1F0A0}-\u{1F0AE}\u{1F0B1}-\u{1F0BF}\u{1F0C1}-\u{1F0CF}\u{1F0D1}-\u{1F0F5}\u{1F100}-\u{1F10F}\u{1F12F}\u{1F16A}-\u{1F16F}\u{1F1AD}\u{1F260}-\u{1F265}\u{1F300}-\u{1F6D7}\u{1F6DC}-\u{1F6EC}\u{1F6F0}-\u{1F6FC}\u{1F700}-\u{1F776}\u{1F77B}-\u{1F7D9}\u{1F7E0}-\u{1F7EB}\u{1F7F0}\u{1F800}-\u{1F80B}\u{1F810}-\u{1F847}\u{1F850}-\u{1F859}\u{1F860}-\u{1F887}\u{1F890}-\u{1F8AD}\u{1F8B0}\u{1F8B1}\u{1F900}-\u{1FA53}\u{1FA60}-\u{1FA6D}\u{1FA70}-\u{1FA7C}\u{1FA80}-\u{1FA88}\u{1FA90}-\u{1FABD}\u{1FABF}-\u{1FAC5}\u{1FACE}-\u{1FADB}\u{1FAE0}-\u{1FAE8}\u{1FAF0}-\u{1FAF8}\u{1FB00}-\u{1FB92}\u{1FB94}-\u{1FBCA}\u{1FBF0}-\u{1FBF9}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}]*$/u; +const bidiS3 = /[0-9\xB2\xB3\xB9\u05BE\u05C0\u05C3\u05C6\u05D0-\u05EA\u05EF-\u05F4\u0600-\u0605\u0608\u060B\u060D\u061B-\u064A\u0660-\u0669\u066B-\u066F\u0671-\u06D5\u06DD\u06E5\u06E6\u06EE-\u070D\u070F\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07C0-\u07EA\u07F4\u07F5\u07FA\u07FE-\u0815\u081A\u0824\u0828\u0830-\u083E\u0840-\u0858\u085E\u0860-\u086A\u0870-\u088E\u0890\u0891\u08A0-\u08C9\u08E2\u200F\u2070\u2074-\u2079\u2080-\u2089\u2488-\u249B\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBC2\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFC\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\u{102E1}-\u{102FB}\u{10800}-\u{10805}\u{10808}\u{1080A}-\u{10835}\u{10837}\u{10838}\u{1083C}\u{1083F}-\u{10855}\u{10857}-\u{1089E}\u{108A7}-\u{108AF}\u{108E0}-\u{108F2}\u{108F4}\u{108F5}\u{108FB}-\u{1091B}\u{10920}-\u{10939}\u{1093F}\u{10980}-\u{109B7}\u{109BC}-\u{109CF}\u{109D2}-\u{10A00}\u{10A10}-\u{10A13}\u{10A15}-\u{10A17}\u{10A19}-\u{10A35}\u{10A40}-\u{10A48}\u{10A50}-\u{10A58}\u{10A60}-\u{10A9F}\u{10AC0}-\u{10AE4}\u{10AEB}-\u{10AF6}\u{10B00}-\u{10B35}\u{10B40}-\u{10B55}\u{10B58}-\u{10B72}\u{10B78}-\u{10B91}\u{10B99}-\u{10B9C}\u{10BA9}-\u{10BAF}\u{10C00}-\u{10C48}\u{10C80}-\u{10CB2}\u{10CC0}-\u{10CF2}\u{10CFA}-\u{10D23}\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}\u{10E80}-\u{10EA9}\u{10EAD}\u{10EB0}\u{10EB1}\u{10F00}-\u{10F27}\u{10F30}-\u{10F45}\u{10F51}-\u{10F59}\u{10F70}-\u{10F81}\u{10F86}-\u{10F89}\u{10FB0}-\u{10FCB}\u{10FE0}-\u{10FF6}\u{1D7CE}-\u{1D7FF}\u{1E800}-\u{1E8C4}\u{1E8C7}-\u{1E8CF}\u{1E900}-\u{1E943}\u{1E94B}\u{1E950}-\u{1E959}\u{1E95E}\u{1E95F}\u{1EC71}-\u{1ECB4}\u{1ED01}-\u{1ED3D}\u{1EE00}-\u{1EE03}\u{1EE05}-\u{1EE1F}\u{1EE21}\u{1EE22}\u{1EE24}\u{1EE27}\u{1EE29}-\u{1EE32}\u{1EE34}-\u{1EE37}\u{1EE39}\u{1EE3B}\u{1EE42}\u{1EE47}\u{1EE49}\u{1EE4B}\u{1EE4D}-\u{1EE4F}\u{1EE51}\u{1EE52}\u{1EE54}\u{1EE57}\u{1EE59}\u{1EE5B}\u{1EE5D}\u{1EE5F}\u{1EE61}\u{1EE62}\u{1EE64}\u{1EE67}-\u{1EE6A}\u{1EE6C}-\u{1EE72}\u{1EE74}-\u{1EE77}\u{1EE79}-\u{1EE7C}\u{1EE7E}\u{1EE80}-\u{1EE89}\u{1EE8B}-\u{1EE9B}\u{1EEA1}-\u{1EEA3}\u{1EEA5}-\u{1EEA9}\u{1EEAB}-\u{1EEBB}\u{1F100}-\u{1F10A}\u{1FBF0}-\u{1FBF9}][\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u09FE\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0AFA-\u0AFF\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B55\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C00\u0C04\u0C3C\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81\u0CBC\u0CCC\u0CCD\u0CE2\u0CE3\u0D00\u0D01\u0D3B\u0D3C\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0D81\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EBC\u0EC8-\u0ECE\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732\u1733\u1752\u1753\u1772\u1773\u17B4\u17B5\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u180F\u1885\u1886\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ACE\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8\u1CF9\u1DC0-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA82C\uA8C4\uA8C5\uA8E0-\uA8F1\uA8FF\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uA9BD\uA9E5\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEC\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\u{101FD}\u{102E0}\u{10376}-\u{1037A}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11001}\u{11038}-\u{11046}\u{11070}\u{11073}\u{11074}\u{1107F}-\u{11081}\u{110B3}-\u{110B6}\u{110B9}\u{110BA}\u{110C2}\u{11100}-\u{11102}\u{11127}-\u{1112B}\u{1112D}-\u{11134}\u{11173}\u{11180}\u{11181}\u{111B6}-\u{111BE}\u{111C9}-\u{111CC}\u{111CF}\u{1122F}-\u{11231}\u{11234}\u{11236}\u{11237}\u{1123E}\u{11241}\u{112DF}\u{112E3}-\u{112EA}\u{11300}\u{11301}\u{1133B}\u{1133C}\u{11340}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11438}-\u{1143F}\u{11442}-\u{11444}\u{11446}\u{1145E}\u{114B3}-\u{114B8}\u{114BA}\u{114BF}\u{114C0}\u{114C2}\u{114C3}\u{115B2}-\u{115B5}\u{115BC}\u{115BD}\u{115BF}\u{115C0}\u{115DC}\u{115DD}\u{11633}-\u{1163A}\u{1163D}\u{1163F}\u{11640}\u{116AB}\u{116AD}\u{116B0}-\u{116B5}\u{116B7}\u{1171D}-\u{1171F}\u{11722}-\u{11725}\u{11727}-\u{1172B}\u{1182F}-\u{11837}\u{11839}\u{1183A}\u{1193B}\u{1193C}\u{1193E}\u{11943}\u{119D4}-\u{119D7}\u{119DA}\u{119DB}\u{119E0}\u{11A01}-\u{11A06}\u{11A09}\u{11A0A}\u{11A33}-\u{11A38}\u{11A3B}-\u{11A3E}\u{11A47}\u{11A51}-\u{11A56}\u{11A59}-\u{11A5B}\u{11A8A}-\u{11A96}\u{11A98}\u{11A99}\u{11C30}-\u{11C36}\u{11C38}-\u{11C3D}\u{11C92}-\u{11CA7}\u{11CAA}-\u{11CB0}\u{11CB2}\u{11CB3}\u{11CB5}\u{11CB6}\u{11D31}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D45}\u{11D47}\u{11D90}\u{11D91}\u{11D95}\u{11D97}\u{11EF3}\u{11EF4}\u{11F00}\u{11F01}\u{11F36}-\u{11F3A}\u{11F40}\u{11F42}\u{13440}\u{13447}-\u{13455}\u{16AF0}-\u{16AF4}\u{16B30}-\u{16B36}\u{16F4F}\u{16F8F}-\u{16F92}\u{16FE4}\u{1BC9D}\u{1BC9E}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1D167}-\u{1D169}\u{1D17B}-\u{1D182}\u{1D185}-\u{1D18B}\u{1D1AA}-\u{1D1AD}\u{1D242}-\u{1D244}\u{1DA00}-\u{1DA36}\u{1DA3B}-\u{1DA6C}\u{1DA75}\u{1DA84}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E08F}\u{1E130}-\u{1E136}\u{1E2AE}\u{1E2EC}-\u{1E2EF}\u{1E4EC}-\u{1E4EF}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94A}\u{E0100}-\u{E01EF}]*$/u; +const bidiS4EN = /[0-9\xB2\xB3\xB9\u06F0-\u06F9\u2070\u2074-\u2079\u2080-\u2089\u2488-\u249B\uFF10-\uFF19\u{102E1}-\u{102FB}\u{1D7CE}-\u{1D7FF}\u{1F100}-\u{1F10A}\u{1FBF0}-\u{1FBF9}]/u; +const bidiS4AN = /[\u0600-\u0605\u0660-\u0669\u066B\u066C\u06DD\u0890\u0891\u08E2\u{10D30}-\u{10D39}\u{10E60}-\u{10E7E}]/u; +const bidiS5 = /^[\0-\x08\x0E-\x1B!-\x84\x86-\u0377\u037A-\u037F\u0384-\u038A\u038C\u038E-\u03A1\u03A3-\u052F\u0531-\u0556\u0559-\u058A\u058D-\u058F\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0606\u0607\u0609\u060A\u060C\u060E-\u061A\u064B-\u065F\u066A\u0670\u06D6-\u06DC\u06DE-\u06E4\u06E7-\u06ED\u06F0-\u06F9\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u07F6-\u07F9\u07FD\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0898-\u089F\u08CA-\u08E1\u08E3-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09FE\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A76\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AF1\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B55-\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B77\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BFA\u0C00-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3C-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-\u0C5A\u0C5D\u0C60-\u0C63\u0C66-\u0C6F\u0C77-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDD\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1-\u0CF3\u0D00-\u0D0C\u0D0E-\u0D10\u0D12-\u0D44\u0D46-\u0D48\u0D4A-\u0D4F\u0D54-\u0D63\u0D66-\u0D7F\u0D81-\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2-\u0DF4\u0E01-\u0E3A\u0E3F-\u0E5B\u0E81\u0E82\u0E84\u0E86-\u0E8A\u0E8C-\u0EA3\u0EA5\u0EA7-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECE\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00-\u0F47\u0F49-\u0F6C\u0F71-\u0F97\u0F99-\u0FBC\u0FBE-\u0FCC\u0FCE-\u0FDA\u1000-\u10C5\u10C7\u10CD\u10D0-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u137C\u1380-\u1399\u13A0-\u13F5\u13F8-\u13FD\u1400-\u167F\u1681-\u169C\u16A0-\u16F8\u1700-\u1715\u171F-\u1736\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17DD\u17E0-\u17E9\u17F0-\u17F9\u1800-\u1819\u1820-\u1878\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1940\u1944-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u19DE-\u1A1B\u1A1E-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA0-\u1AAD\u1AB0-\u1ACE\u1B00-\u1B4C\u1B50-\u1B7E\u1B80-\u1BF3\u1BFC-\u1C37\u1C3B-\u1C49\u1C4D-\u1C88\u1C90-\u1CBA\u1CBD-\u1CC7\u1CD0-\u1CFA\u1D00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FC4\u1FC6-\u1FD3\u1FD6-\u1FDB\u1FDD-\u1FEF\u1FF2-\u1FF4\u1FF6-\u1FFE\u200B-\u200E\u2010-\u2027\u202F-\u205E\u2060-\u2064\u206A-\u2071\u2074-\u208E\u2090-\u209C\u20A0-\u20C0\u20D0-\u20F0\u2100-\u218B\u2190-\u2426\u2440-\u244A\u2460-\u2B73\u2B76-\u2B95\u2B97-\u2CF3\u2CF9-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D70\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2E5D\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFB\u3001-\u303F\u3041-\u3096\u3099-\u30FF\u3105-\u312F\u3131-\u318E\u3190-\u31E3\u31F0-\u321E\u3220-\uA48C\uA490-\uA4C6\uA4D0-\uA62B\uA640-\uA6F7\uA700-\uA7CA\uA7D0\uA7D1\uA7D3\uA7D5-\uA7D9\uA7F2-\uA82C\uA830-\uA839\uA840-\uA877\uA880-\uA8C5\uA8CE-\uA8D9\uA8E0-\uA953\uA95F-\uA97C\uA980-\uA9CD\uA9CF-\uA9D9\uA9DE-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA5C-\uAAC2\uAADB-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB6B\uAB70-\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uD800-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1E\uFB29\uFD3E-\uFD4F\uFDCF\uFDFD-\uFE19\uFE20-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFEFF\uFF01-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC\uFFE0-\uFFE6\uFFE8-\uFFEE\uFFF9-\uFFFD\u{10000}-\u{1000B}\u{1000D}-\u{10026}\u{10028}-\u{1003A}\u{1003C}\u{1003D}\u{1003F}-\u{1004D}\u{10050}-\u{1005D}\u{10080}-\u{100FA}\u{10100}-\u{10102}\u{10107}-\u{10133}\u{10137}-\u{1018E}\u{10190}-\u{1019C}\u{101A0}\u{101D0}-\u{101FD}\u{10280}-\u{1029C}\u{102A0}-\u{102D0}\u{102E0}-\u{102FB}\u{10300}-\u{10323}\u{1032D}-\u{1034A}\u{10350}-\u{1037A}\u{10380}-\u{1039D}\u{1039F}-\u{103C3}\u{103C8}-\u{103D5}\u{10400}-\u{1049D}\u{104A0}-\u{104A9}\u{104B0}-\u{104D3}\u{104D8}-\u{104FB}\u{10500}-\u{10527}\u{10530}-\u{10563}\u{1056F}-\u{1057A}\u{1057C}-\u{1058A}\u{1058C}-\u{10592}\u{10594}\u{10595}\u{10597}-\u{105A1}\u{105A3}-\u{105B1}\u{105B3}-\u{105B9}\u{105BB}\u{105BC}\u{10600}-\u{10736}\u{10740}-\u{10755}\u{10760}-\u{10767}\u{10780}-\u{10785}\u{10787}-\u{107B0}\u{107B2}-\u{107BA}\u{1091F}\u{10A01}-\u{10A03}\u{10A05}\u{10A06}\u{10A0C}-\u{10A0F}\u{10A38}-\u{10A3A}\u{10A3F}\u{10AE5}\u{10AE6}\u{10B39}-\u{10B3F}\u{10D24}-\u{10D27}\u{10EAB}\u{10EAC}\u{10EFD}-\u{10EFF}\u{10F46}-\u{10F50}\u{10F82}-\u{10F85}\u{11000}-\u{1104D}\u{11052}-\u{11075}\u{1107F}-\u{110C2}\u{110CD}\u{110D0}-\u{110E8}\u{110F0}-\u{110F9}\u{11100}-\u{11134}\u{11136}-\u{11147}\u{11150}-\u{11176}\u{11180}-\u{111DF}\u{111E1}-\u{111F4}\u{11200}-\u{11211}\u{11213}-\u{11241}\u{11280}-\u{11286}\u{11288}\u{1128A}-\u{1128D}\u{1128F}-\u{1129D}\u{1129F}-\u{112A9}\u{112B0}-\u{112EA}\u{112F0}-\u{112F9}\u{11300}-\u{11303}\u{11305}-\u{1130C}\u{1130F}\u{11310}\u{11313}-\u{11328}\u{1132A}-\u{11330}\u{11332}\u{11333}\u{11335}-\u{11339}\u{1133B}-\u{11344}\u{11347}\u{11348}\u{1134B}-\u{1134D}\u{11350}\u{11357}\u{1135D}-\u{11363}\u{11366}-\u{1136C}\u{11370}-\u{11374}\u{11400}-\u{1145B}\u{1145D}-\u{11461}\u{11480}-\u{114C7}\u{114D0}-\u{114D9}\u{11580}-\u{115B5}\u{115B8}-\u{115DD}\u{11600}-\u{11644}\u{11650}-\u{11659}\u{11660}-\u{1166C}\u{11680}-\u{116B9}\u{116C0}-\u{116C9}\u{11700}-\u{1171A}\u{1171D}-\u{1172B}\u{11730}-\u{11746}\u{11800}-\u{1183B}\u{118A0}-\u{118F2}\u{118FF}-\u{11906}\u{11909}\u{1190C}-\u{11913}\u{11915}\u{11916}\u{11918}-\u{11935}\u{11937}\u{11938}\u{1193B}-\u{11946}\u{11950}-\u{11959}\u{119A0}-\u{119A7}\u{119AA}-\u{119D7}\u{119DA}-\u{119E4}\u{11A00}-\u{11A47}\u{11A50}-\u{11AA2}\u{11AB0}-\u{11AF8}\u{11B00}-\u{11B09}\u{11C00}-\u{11C08}\u{11C0A}-\u{11C36}\u{11C38}-\u{11C45}\u{11C50}-\u{11C6C}\u{11C70}-\u{11C8F}\u{11C92}-\u{11CA7}\u{11CA9}-\u{11CB6}\u{11D00}-\u{11D06}\u{11D08}\u{11D09}\u{11D0B}-\u{11D36}\u{11D3A}\u{11D3C}\u{11D3D}\u{11D3F}-\u{11D47}\u{11D50}-\u{11D59}\u{11D60}-\u{11D65}\u{11D67}\u{11D68}\u{11D6A}-\u{11D8E}\u{11D90}\u{11D91}\u{11D93}-\u{11D98}\u{11DA0}-\u{11DA9}\u{11EE0}-\u{11EF8}\u{11F00}-\u{11F10}\u{11F12}-\u{11F3A}\u{11F3E}-\u{11F59}\u{11FB0}\u{11FC0}-\u{11FF1}\u{11FFF}-\u{12399}\u{12400}-\u{1246E}\u{12470}-\u{12474}\u{12480}-\u{12543}\u{12F90}-\u{12FF2}\u{13000}-\u{13455}\u{14400}-\u{14646}\u{16800}-\u{16A38}\u{16A40}-\u{16A5E}\u{16A60}-\u{16A69}\u{16A6E}-\u{16ABE}\u{16AC0}-\u{16AC9}\u{16AD0}-\u{16AED}\u{16AF0}-\u{16AF5}\u{16B00}-\u{16B45}\u{16B50}-\u{16B59}\u{16B5B}-\u{16B61}\u{16B63}-\u{16B77}\u{16B7D}-\u{16B8F}\u{16E40}-\u{16E9A}\u{16F00}-\u{16F4A}\u{16F4F}-\u{16F87}\u{16F8F}-\u{16F9F}\u{16FE0}-\u{16FE4}\u{16FF0}\u{16FF1}\u{17000}-\u{187F7}\u{18800}-\u{18CD5}\u{18D00}-\u{18D08}\u{1AFF0}-\u{1AFF3}\u{1AFF5}-\u{1AFFB}\u{1AFFD}\u{1AFFE}\u{1B000}-\u{1B122}\u{1B132}\u{1B150}-\u{1B152}\u{1B155}\u{1B164}-\u{1B167}\u{1B170}-\u{1B2FB}\u{1BC00}-\u{1BC6A}\u{1BC70}-\u{1BC7C}\u{1BC80}-\u{1BC88}\u{1BC90}-\u{1BC99}\u{1BC9C}-\u{1BCA3}\u{1CF00}-\u{1CF2D}\u{1CF30}-\u{1CF46}\u{1CF50}-\u{1CFC3}\u{1D000}-\u{1D0F5}\u{1D100}-\u{1D126}\u{1D129}-\u{1D1EA}\u{1D200}-\u{1D245}\u{1D2C0}-\u{1D2D3}\u{1D2E0}-\u{1D2F3}\u{1D300}-\u{1D356}\u{1D360}-\u{1D378}\u{1D400}-\u{1D454}\u{1D456}-\u{1D49C}\u{1D49E}\u{1D49F}\u{1D4A2}\u{1D4A5}\u{1D4A6}\u{1D4A9}-\u{1D4AC}\u{1D4AE}-\u{1D4B9}\u{1D4BB}\u{1D4BD}-\u{1D4C3}\u{1D4C5}-\u{1D505}\u{1D507}-\u{1D50A}\u{1D50D}-\u{1D514}\u{1D516}-\u{1D51C}\u{1D51E}-\u{1D539}\u{1D53B}-\u{1D53E}\u{1D540}-\u{1D544}\u{1D546}\u{1D54A}-\u{1D550}\u{1D552}-\u{1D6A5}\u{1D6A8}-\u{1D7CB}\u{1D7CE}-\u{1DA8B}\u{1DA9B}-\u{1DA9F}\u{1DAA1}-\u{1DAAF}\u{1DF00}-\u{1DF1E}\u{1DF25}-\u{1DF2A}\u{1E000}-\u{1E006}\u{1E008}-\u{1E018}\u{1E01B}-\u{1E021}\u{1E023}\u{1E024}\u{1E026}-\u{1E02A}\u{1E030}-\u{1E06D}\u{1E08F}\u{1E100}-\u{1E12C}\u{1E130}-\u{1E13D}\u{1E140}-\u{1E149}\u{1E14E}\u{1E14F}\u{1E290}-\u{1E2AE}\u{1E2C0}-\u{1E2F9}\u{1E2FF}\u{1E4D0}-\u{1E4F9}\u{1E7E0}-\u{1E7E6}\u{1E7E8}-\u{1E7EB}\u{1E7ED}\u{1E7EE}\u{1E7F0}-\u{1E7FE}\u{1E8D0}-\u{1E8D6}\u{1E944}-\u{1E94A}\u{1EEF0}\u{1EEF1}\u{1F000}-\u{1F02B}\u{1F030}-\u{1F093}\u{1F0A0}-\u{1F0AE}\u{1F0B1}-\u{1F0BF}\u{1F0C1}-\u{1F0CF}\u{1F0D1}-\u{1F0F5}\u{1F100}-\u{1F1AD}\u{1F1E6}-\u{1F202}\u{1F210}-\u{1F23B}\u{1F240}-\u{1F248}\u{1F250}\u{1F251}\u{1F260}-\u{1F265}\u{1F300}-\u{1F6D7}\u{1F6DC}-\u{1F6EC}\u{1F6F0}-\u{1F6FC}\u{1F700}-\u{1F776}\u{1F77B}-\u{1F7D9}\u{1F7E0}-\u{1F7EB}\u{1F7F0}\u{1F800}-\u{1F80B}\u{1F810}-\u{1F847}\u{1F850}-\u{1F859}\u{1F860}-\u{1F887}\u{1F890}-\u{1F8AD}\u{1F8B0}\u{1F8B1}\u{1F900}-\u{1FA53}\u{1FA60}-\u{1FA6D}\u{1FA70}-\u{1FA7C}\u{1FA80}-\u{1FA88}\u{1FA90}-\u{1FABD}\u{1FABF}-\u{1FAC5}\u{1FACE}-\u{1FADB}\u{1FAE0}-\u{1FAE8}\u{1FAF0}-\u{1FAF8}\u{1FB00}-\u{1FB92}\u{1FB94}-\u{1FBCA}\u{1FBF0}-\u{1FBF9}\u{20000}-\u{2A6DF}\u{2A700}-\u{2B739}\u{2B740}-\u{2B81D}\u{2B820}-\u{2CEA1}\u{2CEB0}-\u{2EBE0}\u{2F800}-\u{2FA1D}\u{30000}-\u{3134A}\u{31350}-\u{323AF}\u{E0001}\u{E0020}-\u{E007F}\u{E0100}-\u{E01EF}\u{F0000}-\u{FFFFD}\u{100000}-\u{10FFFD}]*$/u; +const bidiS6 = 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+ +module.exports = { + combiningMarks, + combiningClassVirama, + validZWNJ, + bidiDomain, + bidiS1LTR, + bidiS1RTL, + bidiS2, + bidiS3, + bidiS4EN, + bidiS4AN, + bidiS5, + bidiS6 +}; diff --git a/week-3/04-course-app-hard/node_modules/tr46/lib/statusMapping.js b/week-3/04-course-app-hard/node_modules/tr46/lib/statusMapping.js new file mode 100644 index 000000000..cfed6d6a7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/lib/statusMapping.js @@ -0,0 +1,11 @@ +"use strict"; + +module.exports.STATUS_MAPPING = { + mapped: 1, + valid: 2, + disallowed: 3, + disallowed_STD3_valid: 4, + disallowed_STD3_mapped: 5, + deviation: 6, + ignored: 7 +}; diff --git a/week-3/04-course-app-hard/node_modules/tr46/package.json b/week-3/04-course-app-hard/node_modules/tr46/package.json new file mode 100644 index 000000000..1b59d7287 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/tr46/package.json @@ -0,0 +1,45 @@ +{ + "name": "tr46", + "version": "4.1.1", + "engines": { + "node": ">=14" + }, + "description": "An implementation of the Unicode UTS #46: Unicode IDNA Compatibility Processing", + "main": "index.js", + "files": [ + "index.js", + "lib/" + ], + "scripts": { + "test": "mocha", + "lint": "eslint .", + "pretest": "node scripts/getLatestTests.js", + "prepublish": "node scripts/generateMappingTable.js && node scripts/generateRegexes.js" + }, + "repository": "https://github.com/jsdom/tr46", + "keywords": [ + "unicode", + "tr46", + "uts46", + "punycode", + "url", + "whatwg" + ], + "author": "Sebastian Mayr ", + "contributors": [ + "Timothy Gu " + ], + "license": "MIT", + "dependencies": { + "punycode": "^2.3.0" + }, + "devDependencies": { + "@domenic/eslint-config": "^3.0.0", + "@unicode/unicode-15.0.0": "^1.3.1", + "eslint": "^8.32.0", + "minipass-fetch": "^3.0.1", + "mocha": "^10.2.0", + "regenerate": "^1.4.2" + }, + "unicodeVersion": "15.0.0" +} diff --git a/week-3/04-course-app-hard/node_modules/uuid/CHANGELOG.md b/week-3/04-course-app-hard/node_modules/uuid/CHANGELOG.md new file mode 100644 index 000000000..f0ba9e1ba --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/CHANGELOG.md @@ -0,0 +1,292 @@ +# Changelog + +All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines. + +## [10.0.0](https://github.com/uuidjs/uuid/compare/v9.0.0...v10.0.0) (2024-06-07) + +### ⚠ BREAKING CHANGES + +- update node support (drop node@12, node@14, add node@20) (#750) + +### Features + +- support support rfc9562 MAX uuid (new in RFC9562) ([#714](https://github.com/uuidjs/uuid/issues/714)) ([0385cd3](https://github.com/uuidjs/uuid/commit/0385cd3f18ae9920678b2849932fa7a9d9aee7d0)) +- support rfc9562 v6 uuids ([#754](https://github.com/uuidjs/uuid/issues/754)) ([c4ed13e](https://github.com/uuidjs/uuid/commit/c4ed13e7159d87c9e42a349bdd9dc955f1af46b6)) +- support rfc9562 v7 uuids ([#681](https://github.com/uuidjs/uuid/issues/681)) ([db76a12](https://github.com/uuidjs/uuid/commit/db76a1284760c441438f50a57924b322dae08891)) +- update node support matrix (only support node 16-20) ([#750](https://github.com/uuidjs/uuid/issues/750)) ([883b163](https://github.com/uuidjs/uuid/commit/883b163b9ab9d6655bfbd8a35e61a3c71674dfe1)) +- support rfc9562 v8 uuids ([#759](https://github.com/uuidjs/uuid/issues/759)) ([35a5342](https://github.com/uuidjs/uuid/commit/35a53428202657e402e6b4aa68f56c08194541bf)) + +### Bug Fixes + +- revert "perf: remove superfluous call to toLowerCase ([#677](https://github.com/uuidjs/uuid/issues/677))" ([#738](https://github.com/uuidjs/uuid/issues/738)) ([e267b90](https://github.com/uuidjs/uuid/commit/e267b9073df1d0ce119ee53c0487fe76acb2be37)) + +## [9.0.1](https://github.com/uuidjs/uuid/compare/v9.0.0...v9.0.1) (2023-09-12) + +### build + +- Fix CI to work with Node.js 20.x + +## [9.0.0](https://github.com/uuidjs/uuid/compare/v8.3.2...v9.0.0) (2022-09-05) + +### ⚠ BREAKING CHANGES + +- Drop Node.js 10.x support. This library always aims at supporting one EOLed LTS release which by this time now is 12.x which has reached EOL 30 Apr 2022. + +- Remove the minified UMD build from the package. + + Minified code is hard to audit and since this is a widely used library it seems more appropriate nowadays to optimize for auditability than to ship a legacy module format that, at best, serves educational purposes nowadays. + + For production browser use cases, users should be using a bundler. For educational purposes, today's online sandboxes like replit.com offer convenient ways to load npm modules, so the use case for UMD through repos like UNPKG or jsDelivr has largely vanished. + +- Drop IE 11 and Safari 10 support. Drop support for browsers that don't correctly implement const/let and default arguments, and no longer transpile the browser build to ES2015. + + This also removes the fallback on msCrypto instead of the crypto API. + + Browser tests are run in the first supported version of each supported browser and in the latest (as of this commit) version available on Browserstack. + +### Features + +- optimize uuid.v1 by 1.3x uuid.v4 by 4.3x (430%) ([#597](https://github.com/uuidjs/uuid/issues/597)) ([3a033f6](https://github.com/uuidjs/uuid/commit/3a033f6bab6bb3780ece6d645b902548043280bc)) +- remove UMD build ([#645](https://github.com/uuidjs/uuid/issues/645)) ([e948a0f](https://github.com/uuidjs/uuid/commit/e948a0f22bf22f4619b27bd913885e478e20fe6f)), closes [#620](https://github.com/uuidjs/uuid/issues/620) +- use native crypto.randomUUID when available ([#600](https://github.com/uuidjs/uuid/issues/600)) ([c9e076c](https://github.com/uuidjs/uuid/commit/c9e076c852edad7e9a06baaa1d148cf4eda6c6c4)) + +### Bug Fixes + +- add Jest/jsdom compatibility ([#642](https://github.com/uuidjs/uuid/issues/642)) ([16f9c46](https://github.com/uuidjs/uuid/commit/16f9c469edf46f0786164cdf4dc980743984a6fd)) +- change default export to named function ([#545](https://github.com/uuidjs/uuid/issues/545)) ([c57bc5a](https://github.com/uuidjs/uuid/commit/c57bc5a9a0653273aa639cda9177ce52efabe42a)) +- handle error when parameter is not set in v3 and v5 ([#622](https://github.com/uuidjs/uuid/issues/622)) ([fcd7388](https://github.com/uuidjs/uuid/commit/fcd73881692d9fabb63872576ba28e30ff852091)) +- run npm audit fix ([#644](https://github.com/uuidjs/uuid/issues/644)) ([04686f5](https://github.com/uuidjs/uuid/commit/04686f54c5fed2cfffc1b619f4970c4bb8532353)) +- upgrading from uuid3 broken link ([#568](https://github.com/uuidjs/uuid/issues/568)) ([1c849da](https://github.com/uuidjs/uuid/commit/1c849da6e164259e72e18636726345b13a7eddd6)) + +### build + +- drop Node.js 8.x from babel transpile target ([#603](https://github.com/uuidjs/uuid/issues/603)) ([aa11485](https://github.com/uuidjs/uuid/commit/aa114858260402107ec8a1e1a825dea0a259bcb5)) +- drop support for legacy browsers (IE11, Safari 10) ([#604](https://github.com/uuidjs/uuid/issues/604)) ([0f433e5](https://github.com/uuidjs/uuid/commit/0f433e5ec444edacd53016de67db021102f36148)) + +- drop node 10.x to upgrade dev dependencies ([#653](https://github.com/uuidjs/uuid/issues/653)) ([28a5712](https://github.com/uuidjs/uuid/commit/28a571283f8abda6b9d85e689f95b7d3ee9e282e)), closes [#643](https://github.com/uuidjs/uuid/issues/643) + +### [8.3.2](https://github.com/uuidjs/uuid/compare/v8.3.1...v8.3.2) (2020-12-08) + +### Bug Fixes + +- lazy load getRandomValues ([#537](https://github.com/uuidjs/uuid/issues/537)) ([16c8f6d](https://github.com/uuidjs/uuid/commit/16c8f6df2f6b09b4d6235602d6a591188320a82e)), closes [#536](https://github.com/uuidjs/uuid/issues/536) + +### [8.3.1](https://github.com/uuidjs/uuid/compare/v8.3.0...v8.3.1) (2020-10-04) + +### Bug Fixes + +- support expo>=39.0.0 ([#515](https://github.com/uuidjs/uuid/issues/515)) ([c65a0f3](https://github.com/uuidjs/uuid/commit/c65a0f3fa73b901959d638d1e3591dfacdbed867)), closes [#375](https://github.com/uuidjs/uuid/issues/375) + +## [8.3.0](https://github.com/uuidjs/uuid/compare/v8.2.0...v8.3.0) (2020-07-27) + +### Features + +- add parse/stringify/validate/version/NIL APIs ([#479](https://github.com/uuidjs/uuid/issues/479)) ([0e6c10b](https://github.com/uuidjs/uuid/commit/0e6c10ba1bf9517796ff23c052fc0468eedfd5f4)), closes [#475](https://github.com/uuidjs/uuid/issues/475) [#478](https://github.com/uuidjs/uuid/issues/478) [#480](https://github.com/uuidjs/uuid/issues/480) [#481](https://github.com/uuidjs/uuid/issues/481) [#180](https://github.com/uuidjs/uuid/issues/180) + +## [8.2.0](https://github.com/uuidjs/uuid/compare/v8.1.0...v8.2.0) (2020-06-23) + +### Features + +- improve performance of v1 string representation ([#453](https://github.com/uuidjs/uuid/issues/453)) ([0ee0b67](https://github.com/uuidjs/uuid/commit/0ee0b67c37846529c66089880414d29f3ae132d5)) +- remove deprecated v4 string parameter ([#454](https://github.com/uuidjs/uuid/issues/454)) ([88ce3ca](https://github.com/uuidjs/uuid/commit/88ce3ca0ba046f60856de62c7ce03f7ba98ba46c)), closes [#437](https://github.com/uuidjs/uuid/issues/437) +- support jspm ([#473](https://github.com/uuidjs/uuid/issues/473)) ([e9f2587](https://github.com/uuidjs/uuid/commit/e9f2587a92575cac31bc1d4ae944e17c09756659)) + +### Bug Fixes + +- prepare package exports for webpack 5 ([#468](https://github.com/uuidjs/uuid/issues/468)) ([8d6e6a5](https://github.com/uuidjs/uuid/commit/8d6e6a5f8965ca9575eb4d92e99a43435f4a58a8)) + +## [8.1.0](https://github.com/uuidjs/uuid/compare/v8.0.0...v8.1.0) (2020-05-20) + +### Features + +- improve v4 performance by reusing random number array ([#435](https://github.com/uuidjs/uuid/issues/435)) ([bf4af0d](https://github.com/uuidjs/uuid/commit/bf4af0d711b4d2ed03d1f74fd12ad0baa87dc79d)) +- optimize V8 performance of bytesToUuid ([#434](https://github.com/uuidjs/uuid/issues/434)) ([e156415](https://github.com/uuidjs/uuid/commit/e156415448ec1af2351fa0b6660cfb22581971f2)) + +### Bug Fixes + +- export package.json required by react-native and bundlers ([#449](https://github.com/uuidjs/uuid/issues/449)) ([be1c8fe](https://github.com/uuidjs/uuid/commit/be1c8fe9a3206c358e0059b52fafd7213aa48a52)), closes [ai/nanoevents#44](https://github.com/ai/nanoevents/issues/44#issuecomment-602010343) [#444](https://github.com/uuidjs/uuid/issues/444) + +## [8.0.0](https://github.com/uuidjs/uuid/compare/v7.0.3...v8.0.0) (2020-04-29) + +### ⚠ BREAKING CHANGES + +- For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export. + + ```diff + -import uuid from 'uuid'; + -console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869' + +import { v4 as uuidv4 } from 'uuid'; + +uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d' + ``` + +- Deep requiring specific algorithms of this library like `require('uuid/v4')`, which has been deprecated in `uuid@7`, is no longer supported. + + Instead use the named exports that this module exports. + + For ECMAScript Modules (ESM): + + ```diff + -import uuidv4 from 'uuid/v4'; + +import { v4 as uuidv4 } from 'uuid'; + uuidv4(); + ``` + + For CommonJS: + + ```diff + -const uuidv4 = require('uuid/v4'); + +const { v4: uuidv4 } = require('uuid'); + uuidv4(); + ``` + +### Features + +- native Node.js ES Modules (wrapper approach) ([#423](https://github.com/uuidjs/uuid/issues/423)) ([2d9f590](https://github.com/uuidjs/uuid/commit/2d9f590ad9701d692625c07ed62f0a0f91227991)), closes [#245](https://github.com/uuidjs/uuid/issues/245) [#419](https://github.com/uuidjs/uuid/issues/419) [#342](https://github.com/uuidjs/uuid/issues/342) +- remove deep requires ([#426](https://github.com/uuidjs/uuid/issues/426)) ([daf72b8](https://github.com/uuidjs/uuid/commit/daf72b84ceb20272a81bb5fbddb05dd95922cbba)) + +### Bug Fixes + +- add CommonJS syntax example to README quickstart section ([#417](https://github.com/uuidjs/uuid/issues/417)) ([e0ec840](https://github.com/uuidjs/uuid/commit/e0ec8402c7ad44b7ef0453036c612f5db513fda0)) + +### [7.0.3](https://github.com/uuidjs/uuid/compare/v7.0.2...v7.0.3) (2020-03-31) + +### Bug Fixes + +- make deep require deprecation warning work in browsers ([#409](https://github.com/uuidjs/uuid/issues/409)) ([4b71107](https://github.com/uuidjs/uuid/commit/4b71107d8c0d2ef56861ede6403fc9dc35a1e6bf)), closes [#408](https://github.com/uuidjs/uuid/issues/408) + +### [7.0.2](https://github.com/uuidjs/uuid/compare/v7.0.1...v7.0.2) (2020-03-04) + +### Bug Fixes + +- make access to msCrypto consistent ([#393](https://github.com/uuidjs/uuid/issues/393)) ([8bf2a20](https://github.com/uuidjs/uuid/commit/8bf2a20f3565df743da7215eebdbada9d2df118c)) +- simplify link in deprecation warning ([#391](https://github.com/uuidjs/uuid/issues/391)) ([bb2c8e4](https://github.com/uuidjs/uuid/commit/bb2c8e4e9f4c5f9c1eaaf3ea59710c633cd90cb7)) +- update links to match content in readme ([#386](https://github.com/uuidjs/uuid/issues/386)) ([44f2f86](https://github.com/uuidjs/uuid/commit/44f2f86e9d2bbf14ee5f0f00f72a3db1292666d4)) + +### [7.0.1](https://github.com/uuidjs/uuid/compare/v7.0.0...v7.0.1) (2020-02-25) + +### Bug Fixes + +- clean up esm builds for node and browser ([#383](https://github.com/uuidjs/uuid/issues/383)) ([59e6a49](https://github.com/uuidjs/uuid/commit/59e6a49e7ce7b3e8fb0f3ee52b9daae72af467dc)) +- provide browser versions independent from module system ([#380](https://github.com/uuidjs/uuid/issues/380)) ([4344a22](https://github.com/uuidjs/uuid/commit/4344a22e7aed33be8627eeaaf05360f256a21753)), closes [#378](https://github.com/uuidjs/uuid/issues/378) + +## [7.0.0](https://github.com/uuidjs/uuid/compare/v3.4.0...v7.0.0) (2020-02-24) + +### ⚠ BREAKING CHANGES + +- The default export, which used to be the v4() method but which was already discouraged in v3.x of this library, has been removed. +- Explicitly note that deep imports of the different uuid version functions are deprecated and no longer encouraged and that ECMAScript module named imports should be used instead. Emit a deprecation warning for people who deep-require the different algorithm variants. +- Remove builtin support for insecure random number generators in the browser. Users who want that will have to supply their own random number generator function. +- Remove support for generating v3 and v5 UUIDs in Node.js<4.x +- Convert code base to ECMAScript Modules (ESM) and release CommonJS build for node and ESM build for browser bundlers. + +### Features + +- add UMD build to npm package ([#357](https://github.com/uuidjs/uuid/issues/357)) ([4e75adf](https://github.com/uuidjs/uuid/commit/4e75adf435196f28e3fbbe0185d654b5ded7ca2c)), closes [#345](https://github.com/uuidjs/uuid/issues/345) +- add various es module and CommonJS examples ([b238510](https://github.com/uuidjs/uuid/commit/b238510bf352463521f74bab175a3af9b7a42555)) +- ensure that docs are up-to-date in CI ([ee5e77d](https://github.com/uuidjs/uuid/commit/ee5e77db547474f5a8f23d6c857a6d399209986b)) +- hybrid CommonJS & ECMAScript modules build ([a3f078f](https://github.com/uuidjs/uuid/commit/a3f078faa0baff69ab41aed08e041f8f9c8993d0)) +- remove insecure fallback random number generator ([3a5842b](https://github.com/uuidjs/uuid/commit/3a5842b141a6e5de0ae338f391661e6b84b167c9)), closes [#173](https://github.com/uuidjs/uuid/issues/173) +- remove support for pre Node.js v4 Buffer API ([#356](https://github.com/uuidjs/uuid/issues/356)) ([b59b5c5](https://github.com/uuidjs/uuid/commit/b59b5c5ecad271c5453f1a156f011671f6d35627)) +- rename repository to github:uuidjs/uuid ([#351](https://github.com/uuidjs/uuid/issues/351)) ([c37a518](https://github.com/uuidjs/uuid/commit/c37a518e367ac4b6d0aa62dba1bc6ce9e85020f7)), closes [#338](https://github.com/uuidjs/uuid/issues/338) + +### Bug Fixes + +- add deep-require proxies for local testing and adjust tests ([#365](https://github.com/uuidjs/uuid/issues/365)) ([7fedc79](https://github.com/uuidjs/uuid/commit/7fedc79ac8fda4bfd1c566c7f05ef4ac13b2db48)) +- add note about removal of default export ([#372](https://github.com/uuidjs/uuid/issues/372)) ([12749b7](https://github.com/uuidjs/uuid/commit/12749b700eb49db8a9759fd306d8be05dbfbd58c)), closes [#370](https://github.com/uuidjs/uuid/issues/370) +- deprecated deep requiring of the different algorithm versions ([#361](https://github.com/uuidjs/uuid/issues/361)) ([c0bdf15](https://github.com/uuidjs/uuid/commit/c0bdf15e417639b1aeb0b247b2fb11f7a0a26b23)) + +## [3.4.0](https://github.com/uuidjs/uuid/compare/v3.3.3...v3.4.0) (2020-01-16) + +### Features + +- rename repository to github:uuidjs/uuid ([#351](https://github.com/uuidjs/uuid/issues/351)) ([e2d7314](https://github.com/uuidjs/uuid/commit/e2d7314)), closes [#338](https://github.com/uuidjs/uuid/issues/338) + +## [3.3.3](https://github.com/uuidjs/uuid/compare/v3.3.2...v3.3.3) (2019-08-19) + +### Bug Fixes + +- no longer run ci tests on node v4 +- upgrade dependencies + +## [3.3.2](https://github.com/uuidjs/uuid/compare/v3.3.1...v3.3.2) (2018-06-28) + +### Bug Fixes + +- typo ([305d877](https://github.com/uuidjs/uuid/commit/305d877)) + +## [3.3.1](https://github.com/uuidjs/uuid/compare/v3.3.0...v3.3.1) (2018-06-28) + +### Bug Fixes + +- fix [#284](https://github.com/uuidjs/uuid/issues/284) by setting function name in try-catch ([f2a60f2](https://github.com/uuidjs/uuid/commit/f2a60f2)) + +# [3.3.0](https://github.com/uuidjs/uuid/compare/v3.2.1...v3.3.0) (2018-06-22) + +### Bug Fixes + +- assignment to readonly property to allow running in strict mode ([#270](https://github.com/uuidjs/uuid/issues/270)) ([d062fdc](https://github.com/uuidjs/uuid/commit/d062fdc)) +- fix [#229](https://github.com/uuidjs/uuid/issues/229) ([c9684d4](https://github.com/uuidjs/uuid/commit/c9684d4)) +- Get correct version of IE11 crypto ([#274](https://github.com/uuidjs/uuid/issues/274)) ([153d331](https://github.com/uuidjs/uuid/commit/153d331)) +- mem issue when generating uuid ([#267](https://github.com/uuidjs/uuid/issues/267)) ([c47702c](https://github.com/uuidjs/uuid/commit/c47702c)) + +### Features + +- enforce Conventional Commit style commit messages ([#282](https://github.com/uuidjs/uuid/issues/282)) ([cc9a182](https://github.com/uuidjs/uuid/commit/cc9a182)) + +## [3.2.1](https://github.com/uuidjs/uuid/compare/v3.2.0...v3.2.1) (2018-01-16) + +### Bug Fixes + +- use msCrypto if available. Fixes [#241](https://github.com/uuidjs/uuid/issues/241) ([#247](https://github.com/uuidjs/uuid/issues/247)) ([1fef18b](https://github.com/uuidjs/uuid/commit/1fef18b)) + +# [3.2.0](https://github.com/uuidjs/uuid/compare/v3.1.0...v3.2.0) (2018-01-16) + +### Bug Fixes + +- remove mistakenly added typescript dependency, rollback version (standard-version will auto-increment) ([09fa824](https://github.com/uuidjs/uuid/commit/09fa824)) +- use msCrypto if available. Fixes [#241](https://github.com/uuidjs/uuid/issues/241) ([#247](https://github.com/uuidjs/uuid/issues/247)) ([1fef18b](https://github.com/uuidjs/uuid/commit/1fef18b)) + +### Features + +- Add v3 Support ([#217](https://github.com/uuidjs/uuid/issues/217)) ([d94f726](https://github.com/uuidjs/uuid/commit/d94f726)) + +# [3.1.0](https://github.com/uuidjs/uuid/compare/v3.1.0...v3.0.1) (2017-06-17) + +### Bug Fixes + +- (fix) Add .npmignore file to exclude test/ and other non-essential files from packing. (#183) +- Fix typo (#178) +- Simple typo fix (#165) + +### Features + +- v5 support in CLI (#197) +- V5 support (#188) + +# 3.0.1 (2016-11-28) + +- split uuid versions into separate files + +# 3.0.0 (2016-11-17) + +- remove .parse and .unparse + +# 2.0.0 + +- Removed uuid.BufferClass + +# 1.4.0 + +- Improved module context detection +- Removed public RNG functions + +# 1.3.2 + +- Improve tests and handling of v1() options (Issue #24) +- Expose RNG option to allow for perf testing with different generators + +# 1.3.0 + +- Support for version 1 ids, thanks to [@ctavan](https://github.com/ctavan)! +- Support for node.js crypto API +- De-emphasizing performance in favor of a) cryptographic quality PRNGs where available and b) more manageable code diff --git a/week-3/04-course-app-hard/node_modules/uuid/CONTRIBUTING.md b/week-3/04-course-app-hard/node_modules/uuid/CONTRIBUTING.md new file mode 100644 index 000000000..4a4503d02 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/CONTRIBUTING.md @@ -0,0 +1,18 @@ +# Contributing + +Please feel free to file GitHub Issues or propose Pull Requests. We're always happy to discuss improvements to this library! + +## Testing + +```shell +npm test +``` + +## Releasing + +Releases are supposed to be done from master, version bumping is automated through [`standard-version`](https://github.com/conventional-changelog/standard-version): + +```shell +npm run release -- --dry-run # verify output manually +npm run release # follow the instructions from the output of this command +``` diff --git a/week-3/04-course-app-hard/node_modules/uuid/LICENSE.md b/week-3/04-course-app-hard/node_modules/uuid/LICENSE.md new file mode 100644 index 000000000..393416836 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/LICENSE.md @@ -0,0 +1,9 @@ +The MIT License (MIT) + +Copyright (c) 2010-2020 Robert Kieffer and other contributors + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/uuid/README.md b/week-3/04-course-app-hard/node_modules/uuid/README.md new file mode 100644 index 000000000..b9079b699 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/README.md @@ -0,0 +1,584 @@ + + + +# uuid [![CI](https://github.com/uuidjs/uuid/workflows/CI/badge.svg)](https://github.com/uuidjs/uuid/actions?query=workflow%3ACI) [![Browser](https://github.com/uuidjs/uuid/workflows/Browser/badge.svg)](https://github.com/uuidjs/uuid/actions?query=workflow%3ABrowser) + +For the creation of [RFC9562](https://www.rfc-editor.org/rfc/rfc9562.html) (formally [RFC4122](https://www.rfc-editor.org/rfc/rfc4122.html)) UUIDs + +- **Complete** - Support for all RFC9562 (nee RFC4122) UUID versions +- **Cross-platform** - Support for ... + - CommonJS, [ECMAScript Modules](#ecmascript-modules) and [CDN builds](#cdn-builds) + - NodeJS 16+ ([LTS releases](https://github.com/nodejs/Release)) + - Chrome, Safari, Firefox, Edge browsers + - Webpack and rollup.js module bundlers + - [React Native / Expo](#react-native--expo) +- **Secure** - Cryptographically-strong random values +- **Small** - Zero-dependency, small footprint, plays nice with "tree shaking" packagers +- **CLI** - Includes the [`uuid` command line](#command-line) utility + + +> [!NOTE] +> Upgrading from `uuid@3`? Your code is probably okay, but check out [Upgrading From `uuid@3`](#upgrading-from-uuid3) for details. + + +> [!NOTE] +> Only interested in creating a version 4 UUID? You might be able to use [`crypto.randomUUID()`](https://developer.mozilla.org/en-US/docs/Web/API/Crypto/randomUUID), eliminating the need to install this library. + +## Quickstart + +To create a random UUID... + +**1. Install** + +```shell +npm install uuid +``` + +**2. Create a UUID** (ES6 module syntax) + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d' +``` + +... or using CommonJS syntax: + +```javascript +const { v4: uuidv4 } = require('uuid'); +uuidv4(); // ⇨ '1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed' +``` + +For timestamp UUIDs, namespace UUIDs, and other options read on ... + +## API Summary + +| | | | +| --- | --- | --- | +| [`uuid.NIL`](#uuidnil) | The nil UUID string (all zeros) | New in `uuid@8.3` | +| [`uuid.MAX`](#uuidmax) | The max UUID string (all ones) | New in `uuid@9.1` | +| [`uuid.parse()`](#uuidparsestr) | Convert UUID string to array of bytes | New in `uuid@8.3` | +| [`uuid.stringify()`](#uuidstringifyarr-offset) | Convert array of bytes to UUID string | New in `uuid@8.3` | +| [`uuid.v1()`](#uuidv1options-buffer-offset) | Create a version 1 (timestamp) UUID | | +| [`uuid.v1ToV6()`](#uuidv1tov6uuid) | Create a version 6 UUID from a version 1 UUID | New in `uuid@10` | +| [`uuid.v3()`](#uuidv3name-namespace-buffer-offset) | Create a version 3 (namespace w/ MD5) UUID | | +| [`uuid.v4()`](#uuidv4options-buffer-offset) | Create a version 4 (random) UUID | | +| [`uuid.v5()`](#uuidv5name-namespace-buffer-offset) | Create a version 5 (namespace w/ SHA-1) UUID | | +| [`uuid.v6()`](#uuidv6options-buffer-offset) | Create a version 6 (timestamp, reordered) UUID | New in `uuid@10` | +| [`uuid.v6ToV1()`](#uuidv6tov1uuid) | Create a version 1 UUID from a version 6 UUID | New in `uuid@10` | +| [`uuid.v7()`](#uuidv7options-buffer-offset) | Create a version 7 (Unix Epoch time-based) UUID | New in `uuid@10` | +| ~~[`uuid.v8()`](#uuidv8)~~ | "Intentionally left blank" | | +| [`uuid.validate()`](#uuidvalidatestr) | Test a string to see if it is a valid UUID | New in `uuid@8.3` | +| [`uuid.version()`](#uuidversionstr) | Detect RFC version of a UUID | New in `uuid@8.3` | + +## API + +### uuid.NIL + +The nil UUID string (all zeros). + +Example: + +```javascript +import { NIL as NIL_UUID } from 'uuid'; + +NIL_UUID; // ⇨ '00000000-0000-0000-0000-000000000000' +``` + +### uuid.MAX + +The max UUID string (all ones). + +Example: + +```javascript +import { MAX as MAX_UUID } from 'uuid'; + +MAX_UUID; // ⇨ 'ffffffff-ffff-ffff-ffff-ffffffffffff' +``` + +### uuid.parse(str) + +Convert UUID string to array of bytes + +| | | +| --------- | ---------------------------------------- | +| `str` | A valid UUID `String` | +| _returns_ | `Uint8Array[16]` | +| _throws_ | `TypeError` if `str` is not a valid UUID | + + +> [!NOTE] +> Ordering of values in the byte arrays used by `parse()` and `stringify()` follows the left ↠ right order of hex-pairs in UUID strings. As shown in the example below. + +Example: + +```javascript +import { parse as uuidParse } from 'uuid'; + +// Parse a UUID +const bytes = uuidParse('6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b'); + +// Convert to hex strings to show byte order (for documentation purposes) +[...bytes].map((v) => v.toString(16).padStart(2, '0')); // ⇨ + // [ + // '6e', 'c0', 'bd', '7f', + // '11', 'c0', '43', 'da', + // '97', '5e', '2a', '8a', + // 'd9', 'eb', 'ae', '0b' + // ] +``` + +### uuid.stringify(arr[, offset]) + +Convert array of bytes to UUID string + +| | | +| -------------- | ---------------------------------------------------------------------------- | +| `arr` | `Array`-like collection of 16 values (starting from `offset`) between 0-255. | +| [`offset` = 0] | `Number` Starting index in the Array | +| _returns_ | `String` | +| _throws_ | `TypeError` if a valid UUID string cannot be generated | + + +> [!NOTE] +> Ordering of values in the byte arrays used by `parse()` and `stringify()` follows the left ↠ right order of hex-pairs in UUID strings. As shown in the example below. + +Example: + +```javascript +import { stringify as uuidStringify } from 'uuid'; + +const uuidBytes = [ + 0x6e, 0xc0, 0xbd, 0x7f, 0x11, 0xc0, 0x43, 0xda, 0x97, 0x5e, 0x2a, 0x8a, 0xd9, 0xeb, 0xae, 0x0b, +]; + +uuidStringify(uuidBytes); // ⇨ '6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b' +``` + +### uuid.v1([options[, buffer[, offset]]]) + +Create an RFC version 1 (timestamp) UUID + +| | | +| --- | --- | +| [`options`] | `Object` with one or more of the following properties: | +| [`options.node` ] | RFC "node" field as an `Array[6]` of byte values (per 4.1.6) | +| [`options.clockseq`] | RFC "clock sequence" as a `Number` between 0 - 0x3fff | +| [`options.msecs`] | RFC "timestamp" field (`Number` of milliseconds, unix epoch) | +| [`options.nsecs`] | RFC "timestamp" field (`Number` of nanoseconds to add to `msecs`, should be 0-10,000) | +| [`options.random`] | `Array` of 16 random bytes (0-255) | +| [`options.rng`] | Alternative to `options.random`, a `Function` that returns an `Array` of 16 random bytes (0-255) | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | +| _throws_ | `Error` if more than 10M UUIDs/sec are requested | + + +> [!NOTE] +> The default [node id](https://datatracker.ietf.org/doc/html/rfc9562#section-5.1) (the last 12 digits in the UUID) is generated once, randomly, on process startup, and then remains unchanged for the duration of the process. + + +> [!NOTE] +> `options.random` and `options.rng` are only meaningful on the very first call to `v1()`, where they may be passed to initialize the internal `node` and `clockseq` fields. + +Example: + +```javascript +import { v1 as uuidv1 } from 'uuid'; + +uuidv1(); // ⇨ '2c5ea4c0-4067-11e9-8bad-9b1deb4d3b7d' +``` + +Example using `options`: + +```javascript +import { v1 as uuidv1 } from 'uuid'; + +const options = { + node: [0x01, 0x23, 0x45, 0x67, 0x89, 0xab], + clockseq: 0x1234, + msecs: new Date('2011-11-01').getTime(), + nsecs: 5678, +}; +uuidv1(options); // ⇨ '710b962e-041c-11e1-9234-0123456789ab' +``` + +### uuid.v1ToV6(uuid) + +Convert a UUID from version 1 to version 6 + +```javascript +import { v1ToV6 } from 'uuid'; + +v1ToV6('92f62d9e-22c4-11ef-97e9-325096b39f47'); // ⇨ '1ef22c49-2f62-6d9e-97e9-325096b39f47' +``` + +### uuid.v3(name, namespace[, buffer[, offset]]) + +Create an RFC version 3 (namespace w/ MD5) UUID + +API is identical to `v5()`, but uses "v3" instead. + + +> [!IMPORTANT] +> Per the RFC, "_If backward compatibility is not an issue, SHA-1 [Version 5] is preferred_." + +### uuid.v4([options[, buffer[, offset]]]) + +Create an RFC version 4 (random) UUID + +| | | +| --- | --- | +| [`options`] | `Object` with one or more of the following properties: | +| [`options.random`] | `Array` of 16 random bytes (0-255) | +| [`options.rng`] | Alternative to `options.random`, a `Function` that returns an `Array` of 16 random bytes (0-255) | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | + +Example: + +```javascript +import { v4 as uuidv4 } from 'uuid'; + +uuidv4(); // ⇨ '1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed' +``` + +Example using predefined `random` values: + +```javascript +import { v4 as uuidv4 } from 'uuid'; + +const v4options = { + random: [ + 0x10, 0x91, 0x56, 0xbe, 0xc4, 0xfb, 0xc1, 0xea, 0x71, 0xb4, 0xef, 0xe1, 0x67, 0x1c, 0x58, 0x36, + ], +}; +uuidv4(v4options); // ⇨ '109156be-c4fb-41ea-b1b4-efe1671c5836' +``` + +### uuid.v5(name, namespace[, buffer[, offset]]) + +Create an RFC version 5 (namespace w/ SHA-1) UUID + +| | | +| --- | --- | +| `name` | `String \| Array` | +| `namespace` | `String \| Array[16]` Namespace UUID | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | + + +> [!NOTE] +> The RFC `DNS` and `URL` namespaces are available as `v5.DNS` and `v5.URL`. + +Example with custom namespace: + +```javascript +import { v5 as uuidv5 } from 'uuid'; + +// Define a custom namespace. Readers, create your own using something like +// https://www.uuidgenerator.net/ +const MY_NAMESPACE = '1b671a64-40d5-491e-99b0-da01ff1f3341'; + +uuidv5('Hello, World!', MY_NAMESPACE); // ⇨ '630eb68f-e0fa-5ecc-887a-7c7a62614681' +``` + +Example with RFC `URL` namespace: + +```javascript +import { v5 as uuidv5 } from 'uuid'; + +uuidv5('https://www.w3.org/', uuidv5.URL); // ⇨ 'c106a26a-21bb-5538-8bf2-57095d1976c1' +``` + +### uuid.v6([options[, buffer[, offset]]]) + +Create an RFC version 6 (timestamp, reordered) UUID + +This method takes the same arguments as uuid.v1(). + +```javascript +import { v6 as uuidv6 } from 'uuid'; + +uuidv6(); // ⇨ '1e940672-c5ea-64c0-8bad-9b1deb4d3b7d' +``` + +Example using `options`: + +```javascript +import { v6 as uuidv6 } from 'uuid'; + +const options = { + node: [0x01, 0x23, 0x45, 0x67, 0x89, 0xab], + clockseq: 0x1234, + msecs: new Date('2011-11-01').getTime(), + nsecs: 5678, +}; +uuidv6(options); // ⇨ '1e1041c7-10b9-662e-9234-0123456789ab' +``` + +### uuid.v6ToV1(uuid) + +Convert a UUID from version 6 to version 1 + +```javascript +import { v6ToV1 } from 'uuid'; + +v6ToV1('1ef22c49-2f62-6d9e-97e9-325096b39f47'); // ⇨ '92f62d9e-22c4-11ef-97e9-325096b39f47' +``` + +### uuid.v7([options[, buffer[, offset]]]) + +Create an RFC version 7 (random) UUID + +| | | +| --- | --- | +| [`options`] | `Object` with one or more of the following properties: | +| [`options.msecs`] | RFC "timestamp" field (`Number` of milliseconds, unix epoch) | +| [`options.random`] | `Array` of 16 random bytes (0-255) | +| [`options.rng`] | Alternative to `options.random`, a `Function` that returns an `Array` of 16 random bytes (0-255) | +| [`options.seq`] | 31 bit monotonic sequence counter as `Number` between 0 - 0x7fffffff | +| [`buffer`] | `Array \| Buffer` If specified, uuid will be written here in byte-form, starting at `offset` | +| [`offset` = 0] | `Number` Index to start writing UUID bytes in `buffer` | +| _returns_ | UUID `String` if no `buffer` is specified, otherwise returns `buffer` | + +Example: + +```javascript +import { v7 as uuidv7 } from 'uuid'; + +uuidv7(); // ⇨ '01695553-c90c-722d-9b5d-b38dfbbd4bed' +``` + +### ~~uuid.v8()~~ + +**_"Intentionally left blank"_** + + +> [!NOTE] +> Version 8 (experimental) UUIDs are "[for experimental or vendor-specific use cases](https://www.rfc-editor.org/rfc/rfc9562.html#name-uuid-version-8)". The RFC does not define a creation algorithm for them, which is why this package does not offer a `v8()` method. The `validate()` and `version()` methods do work with such UUIDs, however. + +### uuid.validate(str) + +Test a string to see if it is a valid UUID + +| | | +| --------- | --------------------------------------------------- | +| `str` | `String` to validate | +| _returns_ | `true` if string is a valid UUID, `false` otherwise | + +Example: + +```javascript +import { validate as uuidValidate } from 'uuid'; + +uuidValidate('not a UUID'); // ⇨ false +uuidValidate('6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b'); // ⇨ true +``` + +Using `validate` and `version` together it is possible to do per-version validation, e.g. validate for only v4 UUIds. + +```javascript +import { version as uuidVersion } from 'uuid'; +import { validate as uuidValidate } from 'uuid'; + +function uuidValidateV4(uuid) { + return uuidValidate(uuid) && uuidVersion(uuid) === 4; +} + +const v1Uuid = 'd9428888-122b-11e1-b85c-61cd3cbb3210'; +const v4Uuid = '109156be-c4fb-41ea-b1b4-efe1671c5836'; + +uuidValidateV4(v4Uuid); // ⇨ true +uuidValidateV4(v1Uuid); // ⇨ false +``` + +### uuid.version(str) + +Detect RFC version of a UUID + +| | | +| --------- | ---------------------------------------- | +| `str` | A valid UUID `String` | +| _returns_ | `Number` The RFC version of the UUID | +| _throws_ | `TypeError` if `str` is not a valid UUID | + +Example: + +```javascript +import { version as uuidVersion } from 'uuid'; + +uuidVersion('45637ec4-c85f-11ea-87d0-0242ac130003'); // ⇨ 1 +uuidVersion('6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b'); // ⇨ 4 +``` + + +> [!NOTE] +> This method returns `0` for the `NIL` UUID, and `15` for the `MAX` UUID. + +## Command Line + +UUIDs can be generated from the command line using `uuid`. + +```shell +$ npx uuid +ddeb27fb-d9a0-4624-be4d-4615062daed4 +``` + +The default is to generate version 4 UUIDS, however the other versions are supported. Type `uuid --help` for details: + +```shell +$ npx uuid --help + +Usage: + uuid + uuid v1 + uuid v3 + uuid v4 + uuid v5 + uuid v7 + uuid --help + +Note: may be "URL" or "DNS" to use the corresponding UUIDs +defined by RFC9562 +``` + +## ECMAScript Modules + +This library comes with [ECMAScript Modules](https://www.ecma-international.org/ecma-262/6.0/#sec-modules) (ESM) support for Node.js versions that support it ([example](./examples/node-esmodules/)) as well as bundlers like [rollup.js](https://rollupjs.org/guide/en/#tree-shaking) ([example](./examples/browser-rollup/)) and [webpack](https://webpack.js.org/guides/tree-shaking/) ([example](./examples/browser-webpack/)) (targeting both, Node.js and browser environments). + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); // ⇨ '1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed' +``` + +To run the examples you must first create a dist build of this library in the module root: + +```shell +npm run build +``` + +## CDN Builds + +### ECMAScript Modules + +To load this module directly into modern browsers that [support loading ECMAScript Modules](https://caniuse.com/#feat=es6-module) you can make use of [jspm](https://jspm.org/): + +```html + +``` + +### UMD + +As of `uuid@9` [UMD (Universal Module Definition)](https://github.com/umdjs/umd) builds are no longer shipped with this library. + +If you need a UMD build of this library, use a bundler like Webpack or Rollup. Alternatively, refer to the documentation of [`uuid@8.3.2`](https://github.com/uuidjs/uuid/blob/v8.3.2/README.md#umd) which was the last version that shipped UMD builds. + +## Known issues + +### Duplicate UUIDs (Googlebot) + +This module may generate duplicate UUIDs when run in clients with _deterministic_ random number generators, such as [Googlebot crawlers](https://developers.google.com/search/docs/advanced/crawling/overview-google-crawlers). This can cause problems for apps that expect client-generated UUIDs to always be unique. Developers should be prepared for this and have a strategy for dealing with possible collisions, such as: + +- Check for duplicate UUIDs, fail gracefully +- Disable write operations for Googlebot clients + +### "getRandomValues() not supported" + +This error occurs in environments where the standard [`crypto.getRandomValues()`](https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues) API is not supported. This issue can be resolved by adding an appropriate polyfill: + +### React Native / Expo + +1. Install [`react-native-get-random-values`](https://github.com/LinusU/react-native-get-random-values#readme) +1. Import it _before_ `uuid`. Since `uuid` might also appear as a transitive dependency of some other imports it's safest to just import `react-native-get-random-values` as the very first thing in your entry point: + +```javascript +import 'react-native-get-random-values'; +import { v4 as uuidv4 } from 'uuid'; +``` + + +> [!NOTE] +> If you are using Expo, you must be using at least `react-native-get-random-values@1.5.0` and `expo@39.0.0`. + +### Web Workers / Service Workers (Edge <= 18) + +[In Edge <= 18, Web Crypto is not supported in Web Workers or Service Workers](https://caniuse.com/#feat=cryptography) and we are not aware of a polyfill (let us know if you find one, please). + +### IE 11 (Internet Explorer) + +Support for IE11 and other legacy browsers has been dropped as of `uuid@9`. If you need to support legacy browsers, you can always transpile the uuid module source yourself (e.g. using [Babel](https://babeljs.io/)). + +## Upgrading From `uuid@7` + +### Only Named Exports Supported When Using with Node.js ESM + +`uuid@7` did not come with native ECMAScript Module (ESM) support for Node.js. Importing it in Node.js ESM consequently imported the CommonJS source with a default export. This library now comes with true Node.js ESM support and only provides named exports. + +Instead of doing: + +```javascript +import uuid from 'uuid'; +uuid.v4(); +``` + +you will now have to use the named exports: + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); +``` + +### Deep Requires No Longer Supported + +Deep requires like `require('uuid/v4')` [which have been deprecated in `uuid@7`](#deep-requires-now-deprecated) are no longer supported. + +## Upgrading From `uuid@3` + +"_Wait... what happened to `uuid@4` thru `uuid@6`?!?_" + +In order to avoid confusion with RFC [version 4](#uuidv4options-buffer-offset) and [version 5](#uuidv5name-namespace-buffer-offset) UUIDs, and a possible [version 6](http://gh.peabody.io/uuidv6/), releases 4 thru 6 of this module have been skipped. + +### Deep Requires Now Deprecated + +`uuid@3` encouraged the use of deep requires to minimize the bundle size of browser builds: + +```javascript +const uuidv4 = require('uuid/v4'); // <== NOW DEPRECATED! +uuidv4(); +``` + +As of `uuid@7` this library now provides ECMAScript modules builds, which allow packagers like Webpack and Rollup to do "tree-shaking" to remove dead code. Instead, use the `import` syntax: + +```javascript +import { v4 as uuidv4 } from 'uuid'; +uuidv4(); +``` + +... or for CommonJS: + +```javascript +const { v4: uuidv4 } = require('uuid'); +uuidv4(); +``` + +### Default Export Removed + +`uuid@3` was exporting the Version 4 UUID method as a default export: + +```javascript +const uuid = require('uuid'); // <== REMOVED! +``` + +This usage pattern was already discouraged in `uuid@3` and has been removed in `uuid@7`. + +--- + +Markdown generated from [README_js.md](README_js.md) by diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/bin/uuid b/week-3/04-course-app-hard/node_modules/uuid/dist/bin/uuid new file mode 100644 index 000000000..f38d2ee19 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/bin/uuid @@ -0,0 +1,2 @@ +#!/usr/bin/env node +require('../uuid-bin'); diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/index.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/index.js new file mode 100644 index 000000000..3e909f49d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/index.js @@ -0,0 +1,104 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +Object.defineProperty(exports, "MAX", { + enumerable: true, + get: function get() { + return _max.default; + } +}); +Object.defineProperty(exports, "NIL", { + enumerable: true, + get: function get() { + return _nil.default; + } +}); +Object.defineProperty(exports, "parse", { + enumerable: true, + get: function get() { + return _parse.default; + } +}); +Object.defineProperty(exports, "stringify", { + enumerable: true, + get: function get() { + return _stringify.default; + } +}); +Object.defineProperty(exports, "v1", { + enumerable: true, + get: function get() { + return _v.default; + } +}); +Object.defineProperty(exports, "v1ToV6", { + enumerable: true, + get: function get() { + return _v1ToV.default; + } +}); +Object.defineProperty(exports, "v3", { + enumerable: true, + get: function get() { + return _v2.default; + } +}); +Object.defineProperty(exports, "v4", { + enumerable: true, + get: function get() { + return _v3.default; + } +}); +Object.defineProperty(exports, "v5", { + enumerable: true, + get: function get() { + return _v4.default; + } +}); +Object.defineProperty(exports, "v6", { + enumerable: true, + get: function get() { + return _v5.default; + } +}); +Object.defineProperty(exports, "v6ToV1", { + enumerable: true, + get: function get() { + return _v6ToV.default; + } +}); +Object.defineProperty(exports, "v7", { + enumerable: true, + get: function get() { + return _v6.default; + } +}); +Object.defineProperty(exports, "validate", { + enumerable: true, + get: function get() { + return _validate.default; + } +}); +Object.defineProperty(exports, "version", { + enumerable: true, + get: function get() { + return _version.default; + } +}); +var _max = _interopRequireDefault(require("./max.js")); +var _nil = _interopRequireDefault(require("./nil.js")); +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = _interopRequireDefault(require("./stringify.js")); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +var _v2 = _interopRequireDefault(require("./v3.js")); +var _v3 = _interopRequireDefault(require("./v4.js")); +var _v4 = _interopRequireDefault(require("./v5.js")); +var _v5 = _interopRequireDefault(require("./v6.js")); +var _v6ToV = _interopRequireDefault(require("./v6ToV1.js")); +var _v6 = _interopRequireDefault(require("./v7.js")); +var _validate = _interopRequireDefault(require("./validate.js")); +var _version = _interopRequireDefault(require("./version.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/max.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/max.js new file mode 100644 index 000000000..8de76f84e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/max.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/md5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/md5.js new file mode 100644 index 000000000..a3bf60dec --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/md5.js @@ -0,0 +1,200 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +/* + * Browser-compatible JavaScript MD5 + * + * Modification of JavaScript MD5 + * https://github.com/blueimp/JavaScript-MD5 + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * https://opensource.org/licenses/MIT + * + * Based on + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ +function md5(bytes) { + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = new Uint8Array(msg.length); + for (var i = 0; i < msg.length; ++i) { + bytes[i] = msg.charCodeAt(i); + } + } + return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); +} + +/* + * Convert an array of little-endian words to an array of bytes + */ +function md5ToHexEncodedArray(input) { + var output = []; + var length32 = input.length * 32; + var hexTab = '0123456789abcdef'; + for (var i = 0; i < length32; i += 8) { + var x = input[i >> 5] >>> i % 32 & 0xff; + var hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); + output.push(hex); + } + return output; +} + +/** + * Calculate output length with padding and bit length + */ +function getOutputLength(inputLength8) { + return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; +} + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length. + */ +function wordsToMd5(x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << len % 32; + x[getOutputLength(len) - 1] = len; + var a = 1732584193; + var b = -271733879; + var c = -1732584194; + var d = 271733878; + for (var i = 0; i < x.length; i += 16) { + var olda = a; + var oldb = b; + var oldc = c; + var oldd = d; + a = md5ff(a, b, c, d, x[i], 7, -680876936); + d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); + c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); + b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); + d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); + a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = md5ff(c, d, a, b, x[i + 10], 17, -42063); + b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); + c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); + d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); + b = md5gg(b, c, d, a, x[i], 20, -373897302); + a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); + d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); + c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); + b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); + a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); + d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); + b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); + c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = md5hh(a, b, c, d, x[i + 5], 4, -378558); + d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); + a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); + b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); + d = md5hh(d, a, b, c, x[i], 11, -358537222); + c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); + b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); + a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); + d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); + c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); + b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); + a = md5ii(a, b, c, d, x[i], 6, -198630844); + d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); + a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); + b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); + c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); + d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); + b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); + a = safeAdd(a, olda); + b = safeAdd(b, oldb); + c = safeAdd(c, oldc); + d = safeAdd(d, oldd); + } + return [a, b, c, d]; +} + +/* + * Convert an array bytes to an array of little-endian words + * Characters >255 have their high-byte silently ignored. + */ +function bytesToWords(input) { + if (input.length === 0) { + return []; + } + var length8 = input.length * 8; + var output = new Uint32Array(getOutputLength(length8)); + for (var i = 0; i < length8; i += 8) { + output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; + } + return output; +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safeAdd(x, y) { + var lsw = (x & 0xffff) + (y & 0xffff); + var msw = (x >> 16) + (y >> 16) + (lsw >> 16); + return msw << 16 | lsw & 0xffff; +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bitRotateLeft(num, cnt) { + return num << cnt | num >>> 32 - cnt; +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5cmn(q, a, b, x, s, t) { + return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); +} +function md5ff(a, b, c, d, x, s, t) { + return md5cmn(b & c | ~b & d, a, b, x, s, t); +} +function md5gg(a, b, c, d, x, s, t) { + return md5cmn(b & d | c & ~d, a, b, x, s, t); +} +function md5hh(a, b, c, d, x, s, t) { + return md5cmn(b ^ c ^ d, a, b, x, s, t); +} +function md5ii(a, b, c, d, x, s, t) { + return md5cmn(c ^ (b | ~d), a, b, x, s, t); +} +var _default = exports.default = md5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/native.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/native.js new file mode 100644 index 000000000..b48d539db --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/native.js @@ -0,0 +1,10 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto); +var _default = exports.default = { + randomUUID +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/nil.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/nil.js new file mode 100644 index 000000000..f7967e90c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/nil.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/parse.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/parse.js new file mode 100644 index 000000000..8ba8f5007 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/parse.js @@ -0,0 +1,44 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function parse(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + var v; + var arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +var _default = exports.default = parse; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/regex.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/regex.js new file mode 100644 index 000000000..fc02a88e8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/regex.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/rng.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/rng.js new file mode 100644 index 000000000..6cf7e98a4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/rng.js @@ -0,0 +1,23 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = rng; +// Unique ID creation requires a high quality random # generator. In the browser we therefore +// require the crypto API and do not support built-in fallback to lower quality random number +// generators (like Math.random()). + +var getRandomValues; +var rnds8 = new Uint8Array(16); +function rng() { + // lazy load so that environments that need to polyfill have a chance to do so + if (!getRandomValues) { + // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. + getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto); + if (!getRandomValues) { + throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported'); + } + } + return getRandomValues(rnds8); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/sha1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/sha1.js new file mode 100644 index 000000000..ae1cf630b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/sha1.js @@ -0,0 +1,82 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + case 1: + return x ^ y ^ z; + case 2: + return x & y ^ x & z ^ y & z; + case 3: + return x ^ y ^ z; + } +} +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} +function sha1(bytes) { + var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + for (var i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + bytes.push(0x80); + var l = bytes.length / 4 + 2; + var N = Math.ceil(l / 16); + var M = new Array(N); + for (var _i = 0; _i < N; ++_i) { + var arr = new Uint32Array(16); + for (var j = 0; j < 16; ++j) { + arr[j] = bytes[_i * 64 + j * 4] << 24 | bytes[_i * 64 + j * 4 + 1] << 16 | bytes[_i * 64 + j * 4 + 2] << 8 | bytes[_i * 64 + j * 4 + 3]; + } + M[_i] = arr; + } + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + for (var _i2 = 0; _i2 < N; ++_i2) { + var W = new Uint32Array(80); + for (var t = 0; t < 16; ++t) { + W[t] = M[_i2][t]; + } + for (var _t = 16; _t < 80; ++_t) { + W[_t] = ROTL(W[_t - 3] ^ W[_t - 8] ^ W[_t - 14] ^ W[_t - 16], 1); + } + var a = H[0]; + var b = H[1]; + var c = H[2]; + var d = H[3]; + var e = H[4]; + for (var _t2 = 0; _t2 < 80; ++_t2) { + var s = Math.floor(_t2 / 20); + var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[_t2] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} +var _default = exports.default = sha1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/stringify.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/stringify.js new file mode 100644 index 000000000..92dec9e04 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/stringify.js @@ -0,0 +1,38 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +exports.unsafeStringify = unsafeStringify; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +var byteToHex = []; +for (var i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + var uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!(0, _validate.default)(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +var _default = exports.default = stringify; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v1.js new file mode 100644 index 000000000..978925168 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v1.js @@ -0,0 +1,131 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +var _nodeId; +var _clockseq; + +// Previous uuid creation time +var _lastMSecs = 0; +var _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + var i = buf && offset || 0; + var b = buf || new Array(16); + options = options || {}; + var node = options.node; + var clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + var seedBytes = options.random || (options.rng || _rng.default)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + var tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (var n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v1ToV6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v1ToV6.js new file mode 100644 index 000000000..0b4319973 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v1ToV6.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v1ToV6; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v1ToV6(uuid) { + var v1Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + var v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v3.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v3.js new file mode 100644 index 000000000..8761fc3b9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v3.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _md = _interopRequireDefault(require("./md5.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +var v3 = (0, _v.default)('v3', 0x30, _md.default); +var _default = exports.default = v3; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v35.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v35.js new file mode 100644 index 000000000..c22c23c09 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v35.js @@ -0,0 +1,63 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.URL = exports.DNS = void 0; +exports.default = v35; +var _stringify = require("./stringify.js"); +var _parse = _interopRequireDefault(require("./parse.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + var bytes = []; + for (var i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +var DNS = exports.DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +var URL = exports.URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = (0, _parse.default)(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + var bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v4.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v4.js new file mode 100644 index 000000000..2242a3ae3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v4.js @@ -0,0 +1,32 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _native = _interopRequireDefault(require("./native.js")); +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function v4(options, buf, offset) { + if (_native.default.randomUUID && !buf && !options) { + return _native.default.randomUUID(); + } + options = options || {}; + var rnds = options.random || (options.rng || _rng.default)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(rnds); +} +var _default = exports.default = v4; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v5.js new file mode 100644 index 000000000..54ad2cbec --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v5.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _sha = _interopRequireDefault(require("./sha1.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +var v5 = (0, _v.default)('v5', 0x50, _sha.default); +var _default = exports.default = v5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v6.js new file mode 100644 index 000000000..cc4ece9c0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v6.js @@ -0,0 +1,42 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6; +var _stringify = require("./stringify.js"); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; } +function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } +function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; } +function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; } +function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + var bytes = (0, _v.default)(_objectSpread(_objectSpread({}, options), {}, { + _v6: true + }), new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = (0, _v1ToV.default)(bytes); + + // Return as a byte array if requested + if (buf) { + for (var i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v6ToV1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v6ToV1.js new file mode 100644 index 000000000..3c8350a98 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v6ToV1.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6ToV1; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v6ToV1(uuid) { + var v6Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + var v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v7.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v7.js new file mode 100644 index 000000000..2e42801cb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/v7.js @@ -0,0 +1,152 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +var _seqLow = null; +var _seqHigh = null; +var _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + var i = buf && offset || 0; + var b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + var rnds = options.random || (options.rng || _rng.default)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + var seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + var seqHigh = _seqHigh; + var seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v7; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/validate.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/validate.js new file mode 100644 index 000000000..d47181aad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/validate.js @@ -0,0 +1,12 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _regex = _interopRequireDefault(require("./regex.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function validate(uuid) { + return typeof uuid === 'string' && _regex.default.test(uuid); +} +var _default = exports.default = validate; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/version.js b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/version.js new file mode 100644 index 000000000..0c6bbdd5d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/commonjs-browser/version.js @@ -0,0 +1,15 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function version(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +var _default = exports.default = version; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/index.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/index.js new file mode 100644 index 000000000..45214b37b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/index.js @@ -0,0 +1,14 @@ +export { default as MAX } from './max.js'; +export { default as NIL } from './nil.js'; +export { default as parse } from './parse.js'; +export { default as stringify } from './stringify.js'; +export { default as v1 } from './v1.js'; +export { default as v1ToV6 } from './v1ToV6.js'; +export { default as v3 } from './v3.js'; +export { default as v4 } from './v4.js'; +export { default as v5 } from './v5.js'; +export { default as v6 } from './v6.js'; +export { default as v6ToV1 } from './v6ToV1.js'; +export { default as v7 } from './v7.js'; +export { default as validate } from './validate.js'; +export { default as version } from './version.js'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/max.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/max.js new file mode 100644 index 000000000..f46a281f5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/max.js @@ -0,0 +1 @@ +export default 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/md5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/md5.js new file mode 100644 index 000000000..82d170e70 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/md5.js @@ -0,0 +1,194 @@ +/* + * Browser-compatible JavaScript MD5 + * + * Modification of JavaScript MD5 + * https://github.com/blueimp/JavaScript-MD5 + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * https://opensource.org/licenses/MIT + * + * Based on + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ +function md5(bytes) { + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = new Uint8Array(msg.length); + for (var i = 0; i < msg.length; ++i) { + bytes[i] = msg.charCodeAt(i); + } + } + return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); +} + +/* + * Convert an array of little-endian words to an array of bytes + */ +function md5ToHexEncodedArray(input) { + var output = []; + var length32 = input.length * 32; + var hexTab = '0123456789abcdef'; + for (var i = 0; i < length32; i += 8) { + var x = input[i >> 5] >>> i % 32 & 0xff; + var hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); + output.push(hex); + } + return output; +} + +/** + * Calculate output length with padding and bit length + */ +function getOutputLength(inputLength8) { + return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; +} + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length. + */ +function wordsToMd5(x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << len % 32; + x[getOutputLength(len) - 1] = len; + var a = 1732584193; + var b = -271733879; + var c = -1732584194; + var d = 271733878; + for (var i = 0; i < x.length; i += 16) { + var olda = a; + var oldb = b; + var oldc = c; + var oldd = d; + a = md5ff(a, b, c, d, x[i], 7, -680876936); + d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); + c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); + b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); + d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); + a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = md5ff(c, d, a, b, x[i + 10], 17, -42063); + b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); + c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); + d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); + b = md5gg(b, c, d, a, x[i], 20, -373897302); + a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); + d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); + c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); + b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); + a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); + d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); + b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); + c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = md5hh(a, b, c, d, x[i + 5], 4, -378558); + d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); + a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); + b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); + d = md5hh(d, a, b, c, x[i], 11, -358537222); + c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); + b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); + a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); + d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); + c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); + b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); + a = md5ii(a, b, c, d, x[i], 6, -198630844); + d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); + a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); + b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); + c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); + d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); + b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); + a = safeAdd(a, olda); + b = safeAdd(b, oldb); + c = safeAdd(c, oldc); + d = safeAdd(d, oldd); + } + return [a, b, c, d]; +} + +/* + * Convert an array bytes to an array of little-endian words + * Characters >255 have their high-byte silently ignored. + */ +function bytesToWords(input) { + if (input.length === 0) { + return []; + } + var length8 = input.length * 8; + var output = new Uint32Array(getOutputLength(length8)); + for (var i = 0; i < length8; i += 8) { + output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; + } + return output; +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safeAdd(x, y) { + var lsw = (x & 0xffff) + (y & 0xffff); + var msw = (x >> 16) + (y >> 16) + (lsw >> 16); + return msw << 16 | lsw & 0xffff; +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bitRotateLeft(num, cnt) { + return num << cnt | num >>> 32 - cnt; +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5cmn(q, a, b, x, s, t) { + return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); +} +function md5ff(a, b, c, d, x, s, t) { + return md5cmn(b & c | ~b & d, a, b, x, s, t); +} +function md5gg(a, b, c, d, x, s, t) { + return md5cmn(b & d | c & ~d, a, b, x, s, t); +} +function md5hh(a, b, c, d, x, s, t) { + return md5cmn(b ^ c ^ d, a, b, x, s, t); +} +function md5ii(a, b, c, d, x, s, t) { + return md5cmn(c ^ (b | ~d), a, b, x, s, t); +} +export default md5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/native.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/native.js new file mode 100644 index 000000000..ba09dec7d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/native.js @@ -0,0 +1,4 @@ +var randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto); +export default { + randomUUID +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/nil.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/nil.js new file mode 100644 index 000000000..b36324c2a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/nil.js @@ -0,0 +1 @@ +export default '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/parse.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/parse.js new file mode 100644 index 000000000..87588317f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/parse.js @@ -0,0 +1,37 @@ +import validate from './validate.js'; +function parse(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + var v; + var arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +export default parse; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/regex.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/regex.js new file mode 100644 index 000000000..848a1fea3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/regex.js @@ -0,0 +1 @@ +export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/rng.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/rng.js new file mode 100644 index 000000000..e54d3888a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/rng.js @@ -0,0 +1,17 @@ +// Unique ID creation requires a high quality random # generator. In the browser we therefore +// require the crypto API and do not support built-in fallback to lower quality random number +// generators (like Math.random()). + +var getRandomValues; +var rnds8 = new Uint8Array(16); +export default function rng() { + // lazy load so that environments that need to polyfill have a chance to do so + if (!getRandomValues) { + // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. + getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto); + if (!getRandomValues) { + throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported'); + } + } + return getRandomValues(rnds8); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/sha1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/sha1.js new file mode 100644 index 000000000..bd8831157 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/sha1.js @@ -0,0 +1,76 @@ +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + case 1: + return x ^ y ^ z; + case 2: + return x & y ^ x & z ^ y & z; + case 3: + return x ^ y ^ z; + } +} +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} +function sha1(bytes) { + var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + for (var i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + bytes.push(0x80); + var l = bytes.length / 4 + 2; + var N = Math.ceil(l / 16); + var M = new Array(N); + for (var _i = 0; _i < N; ++_i) { + var arr = new Uint32Array(16); + for (var j = 0; j < 16; ++j) { + arr[j] = bytes[_i * 64 + j * 4] << 24 | bytes[_i * 64 + j * 4 + 1] << 16 | bytes[_i * 64 + j * 4 + 2] << 8 | bytes[_i * 64 + j * 4 + 3]; + } + M[_i] = arr; + } + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + for (var _i2 = 0; _i2 < N; ++_i2) { + var W = new Uint32Array(80); + for (var t = 0; t < 16; ++t) { + W[t] = M[_i2][t]; + } + for (var _t = 16; _t < 80; ++_t) { + W[_t] = ROTL(W[_t - 3] ^ W[_t - 8] ^ W[_t - 14] ^ W[_t - 16], 1); + } + var a = H[0]; + var b = H[1]; + var c = H[2]; + var d = H[3]; + var e = H[4]; + for (var _t2 = 0; _t2 < 80; ++_t2) { + var s = Math.floor(_t2 / 20); + var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[_t2] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} +export default sha1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/stringify.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/stringify.js new file mode 100644 index 000000000..0a9cf4081 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/stringify.js @@ -0,0 +1,31 @@ +import validate from './validate.js'; + +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +var byteToHex = []; +for (var i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +export function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + var uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!validate(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +export default stringify; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v1.js new file mode 100644 index 000000000..d42a904e0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v1.js @@ -0,0 +1,125 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +var _nodeId; +var _clockseq; + +// Previous uuid creation time +var _lastMSecs = 0; +var _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + var i = buf && offset || 0; + var b = buf || new Array(16); + options = options || {}; + var node = options.node; + var clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + var seedBytes = options.random || (options.rng || rng)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + var tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (var n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || unsafeStringify(b); +} +export default v1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v1ToV6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v1ToV6.js new file mode 100644 index 000000000..e4ecc2917 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v1ToV6.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v1ToV6(uuid) { + var v1Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + var v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? unsafeStringify(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v3.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v3.js new file mode 100644 index 000000000..c9ab9a4cd --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v3.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import md5 from './md5.js'; +var v3 = v35('v3', 0x30, md5); +export default v3; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v35.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v35.js new file mode 100644 index 000000000..e5fd93fb7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v35.js @@ -0,0 +1,55 @@ +import { unsafeStringify } from './stringify.js'; +import parse from './parse.js'; +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + var bytes = []; + for (var i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +export var DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +export var URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +export default function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = parse(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + var bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v4.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v4.js new file mode 100644 index 000000000..f107002b8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v4.js @@ -0,0 +1,25 @@ +import native from './native.js'; +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; +function v4(options, buf, offset) { + if (native.randomUUID && !buf && !options) { + return native.randomUUID(); + } + options = options || {}; + var rnds = options.random || (options.rng || rng)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (var i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return unsafeStringify(rnds); +} +export default v4; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v5.js new file mode 100644 index 000000000..c08d96ba0 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v5.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import sha1 from './sha1.js'; +var v5 = v35('v5', 0x50, sha1); +export default v5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v6.js new file mode 100644 index 000000000..13f9e916c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v6.js @@ -0,0 +1,36 @@ +function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; } +function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } +function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; } +function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; } +function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } +import { unsafeStringify } from './stringify.js'; +import v1 from './v1.js'; +import v1ToV6 from './v1ToV6.js'; + +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +export default function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + var bytes = v1(_objectSpread(_objectSpread({}, options), {}, { + _v6: true + }), new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = v1ToV6(bytes); + + // Return as a byte array if requested + if (buf) { + for (var i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v6ToV1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v6ToV1.js new file mode 100644 index 000000000..3dd1058fc --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v6ToV1.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v6ToV1(uuid) { + var v6Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + var v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? unsafeStringify(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v7.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v7.js new file mode 100644 index 000000000..324153b69 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/v7.js @@ -0,0 +1,146 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +var _seqLow = null; +var _seqHigh = null; +var _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + var i = buf && offset || 0; + var b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + var rnds = options.random || (options.rng || rng)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + var msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + var seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + var seqHigh = _seqHigh; + var seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || unsafeStringify(b); +} +export default v7; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/validate.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/validate.js new file mode 100644 index 000000000..6e40fa587 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/validate.js @@ -0,0 +1,5 @@ +import REGEX from './regex.js'; +function validate(uuid) { + return typeof uuid === 'string' && REGEX.test(uuid); +} +export default validate; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/version.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/version.js new file mode 100644 index 000000000..4ca924eed --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-browser/version.js @@ -0,0 +1,8 @@ +import validate from './validate.js'; +function version(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +export default version; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/index.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/index.js new file mode 100644 index 000000000..45214b37b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/index.js @@ -0,0 +1,14 @@ +export { default as MAX } from './max.js'; +export { default as NIL } from './nil.js'; +export { default as parse } from './parse.js'; +export { default as stringify } from './stringify.js'; +export { default as v1 } from './v1.js'; +export { default as v1ToV6 } from './v1ToV6.js'; +export { default as v3 } from './v3.js'; +export { default as v4 } from './v4.js'; +export { default as v5 } from './v5.js'; +export { default as v6 } from './v6.js'; +export { default as v6ToV1 } from './v6ToV1.js'; +export { default as v7 } from './v7.js'; +export { default as validate } from './validate.js'; +export { default as version } from './version.js'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/max.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/max.js new file mode 100644 index 000000000..f46a281f5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/max.js @@ -0,0 +1 @@ +export default 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/md5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/md5.js new file mode 100644 index 000000000..b3d890ea4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/md5.js @@ -0,0 +1,10 @@ +import crypto from 'node:crypto'; +function md5(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return crypto.createHash('md5').update(bytes).digest(); +} +export default md5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/native.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/native.js new file mode 100644 index 000000000..d688de1d3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/native.js @@ -0,0 +1,4 @@ +import crypto from 'node:crypto'; +export default { + randomUUID: crypto.randomUUID +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/nil.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/nil.js new file mode 100644 index 000000000..b36324c2a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/nil.js @@ -0,0 +1 @@ +export default '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/parse.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/parse.js new file mode 100644 index 000000000..80851ffab --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/parse.js @@ -0,0 +1,37 @@ +import validate from './validate.js'; +function parse(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + let v; + const arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +export default parse; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/regex.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/regex.js new file mode 100644 index 000000000..848a1fea3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/regex.js @@ -0,0 +1 @@ +export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/rng.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/rng.js new file mode 100644 index 000000000..69ee52417 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/rng.js @@ -0,0 +1,10 @@ +import crypto from 'node:crypto'; +const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate +let poolPtr = rnds8Pool.length; +export default function rng() { + if (poolPtr > rnds8Pool.length - 16) { + crypto.randomFillSync(rnds8Pool); + poolPtr = 0; + } + return rnds8Pool.slice(poolPtr, poolPtr += 16); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/sha1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/sha1.js new file mode 100644 index 000000000..22217871d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/sha1.js @@ -0,0 +1,10 @@ +import crypto from 'node:crypto'; +function sha1(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return crypto.createHash('sha1').update(bytes).digest(); +} +export default sha1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/stringify.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/stringify.js new file mode 100644 index 000000000..7792d4e1e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/stringify.js @@ -0,0 +1,31 @@ +import validate from './validate.js'; + +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +const byteToHex = []; +for (let i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +export function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + const uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!validate(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +export default stringify; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v1.js new file mode 100644 index 000000000..6bf0b1c6d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v1.js @@ -0,0 +1,125 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +let _nodeId; +let _clockseq; + +// Previous uuid creation time +let _lastMSecs = 0; +let _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + let i = buf && offset || 0; + const b = buf || new Array(16); + options = options || {}; + let node = options.node; + let clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + const seedBytes = options.random || (options.rng || rng)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + let msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + let nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + const dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + const tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (let n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || unsafeStringify(b); +} +export default v1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v1ToV6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v1ToV6.js new file mode 100644 index 000000000..15aea2fb2 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v1ToV6.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v1ToV6(uuid) { + const v1Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + const v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? unsafeStringify(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v3.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v3.js new file mode 100644 index 000000000..09063b860 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v3.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import md5 from './md5.js'; +const v3 = v35('v3', 0x30, md5); +export default v3; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v35.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v35.js new file mode 100644 index 000000000..013c86962 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v35.js @@ -0,0 +1,55 @@ +import { unsafeStringify } from './stringify.js'; +import parse from './parse.js'; +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + const bytes = []; + for (let i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +export const DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +export const URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +export default function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = parse(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + let bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v4.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v4.js new file mode 100644 index 000000000..ed1db71ed --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v4.js @@ -0,0 +1,25 @@ +import native from './native.js'; +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; +function v4(options, buf, offset) { + if (native.randomUUID && !buf && !options) { + return native.randomUUID(); + } + options = options || {}; + const rnds = options.random || (options.rng || rng)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return unsafeStringify(rnds); +} +export default v4; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v5.js new file mode 100644 index 000000000..e87fe317d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v5.js @@ -0,0 +1,4 @@ +import v35 from './v35.js'; +import sha1 from './sha1.js'; +const v5 = v35('v5', 0x50, sha1); +export default v5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v6.js new file mode 100644 index 000000000..673d025ef --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v6.js @@ -0,0 +1,32 @@ +import { unsafeStringify } from './stringify.js'; +import v1 from './v1.js'; +import v1ToV6 from './v1ToV6.js'; + +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +export default function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + let bytes = v1({ + ...options, + _v6: true + }, new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = v1ToV6(bytes); + + // Return as a byte array if requested + if (buf) { + for (let i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return unsafeStringify(bytes); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v6ToV1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v6ToV1.js new file mode 100644 index 000000000..e2fdfff68 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v6ToV1.js @@ -0,0 +1,20 @@ +import parse from './parse.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +export default function v6ToV1(uuid) { + const v6Bytes = typeof uuid === 'string' ? parse(uuid) : uuid; + const v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? unsafeStringify(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v7.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v7.js new file mode 100644 index 000000000..18159e19b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/v7.js @@ -0,0 +1,146 @@ +import rng from './rng.js'; +import { unsafeStringify } from './stringify.js'; + +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +let _seqLow = null; +let _seqHigh = null; +let _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + let i = buf && offset || 0; + const b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + const rnds = options.random || (options.rng || rng)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + const msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + let seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + let seqHigh = _seqHigh; + let seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || unsafeStringify(b); +} +export default v7; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/validate.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/validate.js new file mode 100644 index 000000000..6e40fa587 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/validate.js @@ -0,0 +1,5 @@ +import REGEX from './regex.js'; +function validate(uuid) { + return typeof uuid === 'string' && REGEX.test(uuid); +} +export default validate; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/version.js b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/version.js new file mode 100644 index 000000000..4ca924eed --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/esm-node/version.js @@ -0,0 +1,8 @@ +import validate from './validate.js'; +function version(uuid) { + if (!validate(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +export default version; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/index.js b/week-3/04-course-app-hard/node_modules/uuid/dist/index.js new file mode 100644 index 000000000..cd6eb746e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/index.js @@ -0,0 +1,104 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +Object.defineProperty(exports, "MAX", { + enumerable: true, + get: function () { + return _max.default; + } +}); +Object.defineProperty(exports, "NIL", { + enumerable: true, + get: function () { + return _nil.default; + } +}); +Object.defineProperty(exports, "parse", { + enumerable: true, + get: function () { + return _parse.default; + } +}); +Object.defineProperty(exports, "stringify", { + enumerable: true, + get: function () { + return _stringify.default; + } +}); +Object.defineProperty(exports, "v1", { + enumerable: true, + get: function () { + return _v.default; + } +}); +Object.defineProperty(exports, "v1ToV6", { + enumerable: true, + get: function () { + return _v1ToV.default; + } +}); +Object.defineProperty(exports, "v3", { + enumerable: true, + get: function () { + return _v2.default; + } +}); +Object.defineProperty(exports, "v4", { + enumerable: true, + get: function () { + return _v3.default; + } +}); +Object.defineProperty(exports, "v5", { + enumerable: true, + get: function () { + return _v4.default; + } +}); +Object.defineProperty(exports, "v6", { + enumerable: true, + get: function () { + return _v5.default; + } +}); +Object.defineProperty(exports, "v6ToV1", { + enumerable: true, + get: function () { + return _v6ToV.default; + } +}); +Object.defineProperty(exports, "v7", { + enumerable: true, + get: function () { + return _v6.default; + } +}); +Object.defineProperty(exports, "validate", { + enumerable: true, + get: function () { + return _validate.default; + } +}); +Object.defineProperty(exports, "version", { + enumerable: true, + get: function () { + return _version.default; + } +}); +var _max = _interopRequireDefault(require("./max.js")); +var _nil = _interopRequireDefault(require("./nil.js")); +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = _interopRequireDefault(require("./stringify.js")); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +var _v2 = _interopRequireDefault(require("./v3.js")); +var _v3 = _interopRequireDefault(require("./v4.js")); +var _v4 = _interopRequireDefault(require("./v5.js")); +var _v5 = _interopRequireDefault(require("./v6.js")); +var _v6ToV = _interopRequireDefault(require("./v6ToV1.js")); +var _v6 = _interopRequireDefault(require("./v7.js")); +var _validate = _interopRequireDefault(require("./validate.js")); +var _version = _interopRequireDefault(require("./version.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/max.js b/week-3/04-course-app-hard/node_modules/uuid/dist/max.js new file mode 100644 index 000000000..8de76f84e --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/max.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = 'ffffffff-ffff-ffff-ffff-ffffffffffff'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/md5-browser.js b/week-3/04-course-app-hard/node_modules/uuid/dist/md5-browser.js new file mode 100644 index 000000000..f0d31f5a4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/md5-browser.js @@ -0,0 +1,200 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +/* + * Browser-compatible JavaScript MD5 + * + * Modification of JavaScript MD5 + * https://github.com/blueimp/JavaScript-MD5 + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * https://opensource.org/licenses/MIT + * + * Based on + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ +function md5(bytes) { + if (typeof bytes === 'string') { + const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = new Uint8Array(msg.length); + for (let i = 0; i < msg.length; ++i) { + bytes[i] = msg.charCodeAt(i); + } + } + return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); +} + +/* + * Convert an array of little-endian words to an array of bytes + */ +function md5ToHexEncodedArray(input) { + const output = []; + const length32 = input.length * 32; + const hexTab = '0123456789abcdef'; + for (let i = 0; i < length32; i += 8) { + const x = input[i >> 5] >>> i % 32 & 0xff; + const hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); + output.push(hex); + } + return output; +} + +/** + * Calculate output length with padding and bit length + */ +function getOutputLength(inputLength8) { + return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; +} + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length. + */ +function wordsToMd5(x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << len % 32; + x[getOutputLength(len) - 1] = len; + let a = 1732584193; + let b = -271733879; + let c = -1732584194; + let d = 271733878; + for (let i = 0; i < x.length; i += 16) { + const olda = a; + const oldb = b; + const oldc = c; + const oldd = d; + a = md5ff(a, b, c, d, x[i], 7, -680876936); + d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); + c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); + b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); + d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); + a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = md5ff(c, d, a, b, x[i + 10], 17, -42063); + b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); + c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); + d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); + b = md5gg(b, c, d, a, x[i], 20, -373897302); + a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); + d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); + c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); + b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); + a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); + d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); + b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); + c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = md5hh(a, b, c, d, x[i + 5], 4, -378558); + d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); + a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); + b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); + d = md5hh(d, a, b, c, x[i], 11, -358537222); + c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); + b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); + a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); + d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); + c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); + b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); + a = md5ii(a, b, c, d, x[i], 6, -198630844); + d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); + a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); + b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); + c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); + d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); + b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); + a = safeAdd(a, olda); + b = safeAdd(b, oldb); + c = safeAdd(c, oldc); + d = safeAdd(d, oldd); + } + return [a, b, c, d]; +} + +/* + * Convert an array bytes to an array of little-endian words + * Characters >255 have their high-byte silently ignored. + */ +function bytesToWords(input) { + if (input.length === 0) { + return []; + } + const length8 = input.length * 8; + const output = new Uint32Array(getOutputLength(length8)); + for (let i = 0; i < length8; i += 8) { + output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; + } + return output; +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safeAdd(x, y) { + const lsw = (x & 0xffff) + (y & 0xffff); + const msw = (x >> 16) + (y >> 16) + (lsw >> 16); + return msw << 16 | lsw & 0xffff; +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bitRotateLeft(num, cnt) { + return num << cnt | num >>> 32 - cnt; +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5cmn(q, a, b, x, s, t) { + return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); +} +function md5ff(a, b, c, d, x, s, t) { + return md5cmn(b & c | ~b & d, a, b, x, s, t); +} +function md5gg(a, b, c, d, x, s, t) { + return md5cmn(b & d | c & ~d, a, b, x, s, t); +} +function md5hh(a, b, c, d, x, s, t) { + return md5cmn(b ^ c ^ d, a, b, x, s, t); +} +function md5ii(a, b, c, d, x, s, t) { + return md5cmn(c ^ (b | ~d), a, b, x, s, t); +} +var _default = exports.default = md5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/md5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/md5.js new file mode 100644 index 000000000..135b24df6 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/md5.js @@ -0,0 +1,17 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function md5(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return _nodeCrypto.default.createHash('md5').update(bytes).digest(); +} +var _default = exports.default = md5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/native-browser.js b/week-3/04-course-app-hard/node_modules/uuid/dist/native-browser.js new file mode 100644 index 000000000..bc5d3830c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/native-browser.js @@ -0,0 +1,10 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +const randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto); +var _default = exports.default = { + randomUUID +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/native.js b/week-3/04-course-app-hard/node_modules/uuid/dist/native.js new file mode 100644 index 000000000..4c273c559 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/native.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +var _default = exports.default = { + randomUUID: _nodeCrypto.default.randomUUID +}; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/nil.js b/week-3/04-course-app-hard/node_modules/uuid/dist/nil.js new file mode 100644 index 000000000..f7967e90c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/nil.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = '00000000-0000-0000-0000-000000000000'; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/parse.js b/week-3/04-course-app-hard/node_modules/uuid/dist/parse.js new file mode 100644 index 000000000..1707c9080 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/parse.js @@ -0,0 +1,44 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function parse(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + let v; + const arr = new Uint8Array(16); + + // Parse ########-....-....-....-............ + arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; + arr[1] = v >>> 16 & 0xff; + arr[2] = v >>> 8 & 0xff; + arr[3] = v & 0xff; + + // Parse ........-####-....-....-............ + arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; + arr[5] = v & 0xff; + + // Parse ........-....-####-....-............ + arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; + arr[7] = v & 0xff; + + // Parse ........-....-....-####-............ + arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; + arr[9] = v & 0xff; + + // Parse ........-....-....-....-############ + // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) + arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; + arr[11] = v / 0x100000000 & 0xff; + arr[12] = v >>> 24 & 0xff; + arr[13] = v >>> 16 & 0xff; + arr[14] = v >>> 8 & 0xff; + arr[15] = v & 0xff; + return arr; +} +var _default = exports.default = parse; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/regex.js b/week-3/04-course-app-hard/node_modules/uuid/dist/regex.js new file mode 100644 index 000000000..fc02a88e8 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/regex.js @@ -0,0 +1,7 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _default = exports.default = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/rng-browser.js b/week-3/04-course-app-hard/node_modules/uuid/dist/rng-browser.js new file mode 100644 index 000000000..e257738fe --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/rng-browser.js @@ -0,0 +1,23 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = rng; +// Unique ID creation requires a high quality random # generator. In the browser we therefore +// require the crypto API and do not support built-in fallback to lower quality random number +// generators (like Math.random()). + +let getRandomValues; +const rnds8 = new Uint8Array(16); +function rng() { + // lazy load so that environments that need to polyfill have a chance to do so + if (!getRandomValues) { + // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. + getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto); + if (!getRandomValues) { + throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported'); + } + } + return getRandomValues(rnds8); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/rng.js b/week-3/04-course-app-hard/node_modules/uuid/dist/rng.js new file mode 100644 index 000000000..f5eb9a1d5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/rng.js @@ -0,0 +1,17 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = rng; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate +let poolPtr = rnds8Pool.length; +function rng() { + if (poolPtr > rnds8Pool.length - 16) { + _nodeCrypto.default.randomFillSync(rnds8Pool); + poolPtr = 0; + } + return rnds8Pool.slice(poolPtr, poolPtr += 16); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/sha1-browser.js b/week-3/04-course-app-hard/node_modules/uuid/dist/sha1-browser.js new file mode 100644 index 000000000..ded98db2c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/sha1-browser.js @@ -0,0 +1,82 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + case 1: + return x ^ y ^ z; + case 2: + return x & y ^ x & z ^ y & z; + case 3: + return x ^ y ^ z; + } +} +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} +function sha1(bytes) { + const K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + const H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + if (typeof bytes === 'string') { + const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + for (let i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + bytes.push(0x80); + const l = bytes.length / 4 + 2; + const N = Math.ceil(l / 16); + const M = new Array(N); + for (let i = 0; i < N; ++i) { + const arr = new Uint32Array(16); + for (let j = 0; j < 16; ++j) { + arr[j] = bytes[i * 64 + j * 4] << 24 | bytes[i * 64 + j * 4 + 1] << 16 | bytes[i * 64 + j * 4 + 2] << 8 | bytes[i * 64 + j * 4 + 3]; + } + M[i] = arr; + } + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + for (let i = 0; i < N; ++i) { + const W = new Uint32Array(80); + for (let t = 0; t < 16; ++t) { + W[t] = M[i][t]; + } + for (let t = 16; t < 80; ++t) { + W[t] = ROTL(W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16], 1); + } + let a = H[0]; + let b = H[1]; + let c = H[2]; + let d = H[3]; + let e = H[4]; + for (let t = 0; t < 80; ++t) { + const s = Math.floor(t / 20); + const T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[t] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} +var _default = exports.default = sha1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/sha1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/sha1.js new file mode 100644 index 000000000..3b9ded990 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/sha1.js @@ -0,0 +1,17 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _nodeCrypto = _interopRequireDefault(require("node:crypto")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function sha1(bytes) { + if (Array.isArray(bytes)) { + bytes = Buffer.from(bytes); + } else if (typeof bytes === 'string') { + bytes = Buffer.from(bytes, 'utf8'); + } + return _nodeCrypto.default.createHash('sha1').update(bytes).digest(); +} +var _default = exports.default = sha1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/stringify.js b/week-3/04-course-app-hard/node_modules/uuid/dist/stringify.js new file mode 100644 index 000000000..2522dc978 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/stringify.js @@ -0,0 +1,38 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +exports.unsafeStringify = unsafeStringify; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert array of 16 byte values to UUID string format of the form: + * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX + */ +const byteToHex = []; +for (let i = 0; i < 256; ++i) { + byteToHex.push((i + 0x100).toString(16).slice(1)); +} +function unsafeStringify(arr, offset = 0) { + // Note: Be careful editing this code! It's been tuned for performance + // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434 + // + // Note to future-self: No, you can't remove the `toLowerCase()` call. + // REF: https://github.com/uuidjs/uuid/pull/677#issuecomment-1757351351 + return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); +} +function stringify(arr, offset = 0) { + const uuid = unsafeStringify(arr, offset); + // Consistency check for valid UUID. If this throws, it's likely due to one + // of the following: + // - One or more input array values don't map to a hex octet (leading to + // "undefined" in the uuid) + // - Invalid input values for the RFC `version` or `variant` fields + if (!(0, _validate.default)(uuid)) { + throw TypeError('Stringified UUID is invalid'); + } + return uuid; +} +var _default = exports.default = stringify; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/uuid-bin.js b/week-3/04-course-app-hard/node_modules/uuid/dist/uuid-bin.js new file mode 100644 index 000000000..d039dfe01 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/uuid-bin.js @@ -0,0 +1,75 @@ +"use strict"; + +var _assert = _interopRequireDefault(require("assert")); +var _v = _interopRequireDefault(require("./v1.js")); +var _v2 = _interopRequireDefault(require("./v3.js")); +var _v3 = _interopRequireDefault(require("./v4.js")); +var _v4 = _interopRequireDefault(require("./v5.js")); +var _v5 = _interopRequireDefault(require("./v6.js")); +var _v6 = _interopRequireDefault(require("./v7.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function usage() { + console.log('Usage:'); + console.log(' uuid'); + console.log(' uuid v1'); + console.log(' uuid v3 '); + console.log(' uuid v4'); + console.log(' uuid v5 '); + console.log(' uuid v6'); + console.log(' uuid v7'); + console.log(' uuid --help'); + console.log('\nNote: may be "URL" or "DNS" to use the corresponding UUIDs defined by RFC9562'); +} +const args = process.argv.slice(2); +if (args.indexOf('--help') >= 0) { + usage(); + process.exit(0); +} +const version = args.shift() || 'v4'; +switch (version) { + case 'v1': + console.log((0, _v.default)()); + break; + case 'v3': + { + const name = args.shift(); + let namespace = args.shift(); + (0, _assert.default)(name != null, 'v3 name not specified'); + (0, _assert.default)(namespace != null, 'v3 namespace not specified'); + if (namespace === 'URL') { + namespace = _v2.default.URL; + } + if (namespace === 'DNS') { + namespace = _v2.default.DNS; + } + console.log((0, _v2.default)(name, namespace)); + break; + } + case 'v4': + console.log((0, _v3.default)()); + break; + case 'v5': + { + const name = args.shift(); + let namespace = args.shift(); + (0, _assert.default)(name != null, 'v5 name not specified'); + (0, _assert.default)(namespace != null, 'v5 namespace not specified'); + if (namespace === 'URL') { + namespace = _v4.default.URL; + } + if (namespace === 'DNS') { + namespace = _v4.default.DNS; + } + console.log((0, _v4.default)(name, namespace)); + break; + } + case 'v6': + console.log((0, _v5.default)()); + break; + case 'v7': + console.log((0, _v6.default)()); + break; + default: + usage(); + process.exit(1); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v1.js new file mode 100644 index 000000000..c6b9344ad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v1.js @@ -0,0 +1,131 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +// **`v1()` - Generate time-based UUID** +// +// Inspired by https://github.com/LiosK/UUID.js +// and http://docs.python.org/library/uuid.html + +let _nodeId; +let _clockseq; + +// Previous uuid creation time +let _lastMSecs = 0; +let _lastNSecs = 0; + +// See https://github.com/uuidjs/uuid for API details +function v1(options, buf, offset) { + let i = buf && offset || 0; + const b = buf || new Array(16); + options = options || {}; + let node = options.node; + let clockseq = options.clockseq; + + // v1 only: Use cached `node` and `clockseq` values + if (!options._v6) { + if (!node) { + node = _nodeId; + } + if (clockseq == null) { + clockseq = _clockseq; + } + } + + // Handle cases where we need entropy. We do this lazily to minimize issues + // related to insufficient system entropy. See #189 + if (node == null || clockseq == null) { + const seedBytes = options.random || (options.rng || _rng.default)(); + + // Randomize node + if (node == null) { + node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]]; + + // v1 only: cache node value for reuse + if (!_nodeId && !options._v6) { + // per RFC4122 4.5: Set MAC multicast bit (v1 only) + node[0] |= 0x01; // Set multicast bit + + _nodeId = node; + } + } + + // Randomize clockseq + if (clockseq == null) { + // Per 4.2.2, randomize (14 bit) clockseq + clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff; + if (_clockseq === undefined && !options._v6) { + _clockseq = clockseq; + } + } + } + + // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch, + // (1582-10-15 00:00). JSNumbers aren't precise enough for this, so time is + // handled internally as 'msecs' (integer milliseconds) and 'nsecs' + // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00. + let msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // Per 4.2.1.2, use count of uuid's generated during the current clock + // cycle to simulate higher resolution clock + let nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; + + // Time since last uuid creation (in msecs) + const dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; + + // Per 4.2.1.2, Bump clockseq on clock regression + if (dt < 0 && options.clockseq === undefined) { + clockseq = clockseq + 1 & 0x3fff; + } + + // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new + // time interval + if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) { + nsecs = 0; + } + + // Per 4.2.1.2 Throw error if too many uuids are requested + if (nsecs >= 10000) { + throw new Error("uuid.v1(): Can't create more than 10M uuids/sec"); + } + _lastMSecs = msecs; + _lastNSecs = nsecs; + _clockseq = clockseq; + + // Per 4.1.4 - Convert from unix epoch to Gregorian epoch + msecs += 12219292800000; + + // `time_low` + const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000; + b[i++] = tl >>> 24 & 0xff; + b[i++] = tl >>> 16 & 0xff; + b[i++] = tl >>> 8 & 0xff; + b[i++] = tl & 0xff; + + // `time_mid` + const tmh = msecs / 0x100000000 * 10000 & 0xfffffff; + b[i++] = tmh >>> 8 & 0xff; + b[i++] = tmh & 0xff; + + // `time_high_and_version` + b[i++] = tmh >>> 24 & 0xf | 0x10; // include version + b[i++] = tmh >>> 16 & 0xff; + + // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant) + b[i++] = clockseq >>> 8 | 0x80; + + // `clock_seq_low` + b[i++] = clockseq & 0xff; + + // `node` + for (let n = 0; n < 6; ++n) { + b[i + n] = node[n]; + } + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v1; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v1ToV6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v1ToV6.js new file mode 100644 index 000000000..ce5637347 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v1ToV6.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v1ToV6; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v1 UUID to a v6 UUID + * + * @param {string|Uint8Array} uuid - The v1 UUID to convert to v6 + * @returns {string|Uint8Array} The v6 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v1ToV6(uuid) { + const v1Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + const v6Bytes = _v1ToV6(v1Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v6Bytes) : v6Bytes; +} + +// Do the field transformation needed for v1 -> v6 +function _v1ToV6(v1Bytes, randomize = false) { + return Uint8Array.of((v1Bytes[6] & 0x0f) << 4 | v1Bytes[7] >> 4 & 0x0f, (v1Bytes[7] & 0x0f) << 4 | (v1Bytes[4] & 0xf0) >> 4, (v1Bytes[4] & 0x0f) << 4 | (v1Bytes[5] & 0xf0) >> 4, (v1Bytes[5] & 0x0f) << 4 | (v1Bytes[0] & 0xf0) >> 4, (v1Bytes[0] & 0x0f) << 4 | (v1Bytes[1] & 0xf0) >> 4, (v1Bytes[1] & 0x0f) << 4 | (v1Bytes[2] & 0xf0) >> 4, 0x60 | v1Bytes[2] & 0x0f, v1Bytes[3], v1Bytes[8], v1Bytes[9], v1Bytes[10], v1Bytes[11], v1Bytes[12], v1Bytes[13], v1Bytes[14], v1Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v3.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v3.js new file mode 100644 index 000000000..a3eed7e56 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v3.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _md = _interopRequireDefault(require("./md5.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +const v3 = (0, _v.default)('v3', 0x30, _md.default); +var _default = exports.default = v3; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v35.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v35.js new file mode 100644 index 000000000..f2e35ae22 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v35.js @@ -0,0 +1,63 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.URL = exports.DNS = void 0; +exports.default = v35; +var _stringify = require("./stringify.js"); +var _parse = _interopRequireDefault(require("./parse.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function stringToBytes(str) { + str = unescape(encodeURIComponent(str)); // UTF8 escape + + const bytes = []; + for (let i = 0; i < str.length; ++i) { + bytes.push(str.charCodeAt(i)); + } + return bytes; +} +const DNS = exports.DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; +const URL = exports.URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; +function v35(name, version, hashfunc) { + function generateUUID(value, namespace, buf, offset) { + var _namespace; + if (typeof value === 'string') { + value = stringToBytes(value); + } + if (typeof namespace === 'string') { + namespace = (0, _parse.default)(namespace); + } + if (((_namespace = namespace) === null || _namespace === void 0 ? void 0 : _namespace.length) !== 16) { + throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)'); + } + + // Compute hash of namespace and value, Per 4.3 + // Future: Use spread syntax when supported on all platforms, e.g. `bytes = + // hashfunc([...namespace, ... value])` + let bytes = new Uint8Array(16 + value.length); + bytes.set(namespace); + bytes.set(value, namespace.length); + bytes = hashfunc(bytes); + bytes[6] = bytes[6] & 0x0f | version; + bytes[8] = bytes[8] & 0x3f | 0x80; + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); + } + + // Function#name is not settable on some platforms (#270) + try { + generateUUID.name = name; + } catch (err) {} + + // For CommonJS default export support + generateUUID.DNS = DNS; + generateUUID.URL = URL; + return generateUUID; +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v4.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v4.js new file mode 100644 index 000000000..6f2744b89 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v4.js @@ -0,0 +1,32 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _native = _interopRequireDefault(require("./native.js")); +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function v4(options, buf, offset) { + if (_native.default.randomUUID && !buf && !options) { + return _native.default.randomUUID(); + } + options = options || {}; + const rnds = options.random || (options.rng || _rng.default)(); + + // Per 4.4, set bits for version and `clock_seq_hi_and_reserved` + rnds[6] = rnds[6] & 0x0f | 0x40; + rnds[8] = rnds[8] & 0x3f | 0x80; + + // Copy bytes to buffer, if provided + if (buf) { + offset = offset || 0; + for (let i = 0; i < 16; ++i) { + buf[offset + i] = rnds[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(rnds); +} +var _default = exports.default = v4; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v5.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v5.js new file mode 100644 index 000000000..63063bb27 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v5.js @@ -0,0 +1,11 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _v = _interopRequireDefault(require("./v35.js")); +var _sha = _interopRequireDefault(require("./sha1.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +const v5 = (0, _v.default)('v5', 0x50, _sha.default); +var _default = exports.default = v5; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v6.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v6.js new file mode 100644 index 000000000..627c6a7bb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v6.js @@ -0,0 +1,38 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6; +var _stringify = require("./stringify.js"); +var _v = _interopRequireDefault(require("./v1.js")); +var _v1ToV = _interopRequireDefault(require("./v1ToV6.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * + * @param {object} options + * @param {Uint8Array=} buf + * @param {number=} offset + * @returns + */ +function v6(options = {}, buf, offset = 0) { + // v6 is v1 with different field layout, so we start with a v1 UUID, albeit + // with slightly different behavior around how the clock_seq and node fields + // are randomized, which is why we call v1 with _v6: true. + let bytes = (0, _v.default)({ + ...options, + _v6: true + }, new Uint8Array(16)); + + // Reorder the fields to v6 layout. + bytes = (0, _v1ToV.default)(bytes); + + // Return as a byte array if requested + if (buf) { + for (let i = 0; i < 16; i++) { + buf[offset + i] = bytes[i]; + } + return buf; + } + return (0, _stringify.unsafeStringify)(bytes); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v6ToV1.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v6ToV1.js new file mode 100644 index 000000000..a01986100 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v6ToV1.js @@ -0,0 +1,26 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = v6ToV1; +var _parse = _interopRequireDefault(require("./parse.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * Convert a v6 UUID to a v1 UUID + * + * @param {string|Uint8Array} uuid - The v6 UUID to convert to v6 + * @returns {string|Uint8Array} The v1 UUID as the same type as the `uuid` arg + * (string or Uint8Array) + */ +function v6ToV1(uuid) { + const v6Bytes = typeof uuid === 'string' ? (0, _parse.default)(uuid) : uuid; + const v1Bytes = _v6ToV1(v6Bytes); + return typeof uuid === 'string' ? (0, _stringify.unsafeStringify)(v1Bytes) : v1Bytes; +} + +// Do the field transformation needed for v6 -> v1 +function _v6ToV1(v6Bytes) { + return Uint8Array.of((v6Bytes[3] & 0x0f) << 4 | v6Bytes[4] >> 4 & 0x0f, (v6Bytes[4] & 0x0f) << 4 | (v6Bytes[5] & 0xf0) >> 4, (v6Bytes[5] & 0x0f) << 4 | v6Bytes[6] & 0x0f, v6Bytes[7], (v6Bytes[1] & 0x0f) << 4 | (v6Bytes[2] & 0xf0) >> 4, (v6Bytes[2] & 0x0f) << 4 | (v6Bytes[3] & 0xf0) >> 4, 0x10 | (v6Bytes[0] & 0xf0) >> 4, (v6Bytes[0] & 0x0f) << 4 | (v6Bytes[1] & 0xf0) >> 4, v6Bytes[8], v6Bytes[9], v6Bytes[10], v6Bytes[11], v6Bytes[12], v6Bytes[13], v6Bytes[14], v6Bytes[15]); +} \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/v7.js b/week-3/04-course-app-hard/node_modules/uuid/dist/v7.js new file mode 100644 index 000000000..85831e12d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/v7.js @@ -0,0 +1,152 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _rng = _interopRequireDefault(require("./rng.js")); +var _stringify = require("./stringify.js"); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +/** + * UUID V7 - Unix Epoch time-based UUID + * + * The IETF has published RFC9562, introducing 3 new UUID versions (6,7,8). This + * implementation of V7 is based on the accepted, though not yet approved, + * revisions. + * + * RFC 9562:https://www.rfc-editor.org/rfc/rfc9562.html Universally Unique + * IDentifiers (UUIDs) + + * + * Sample V7 value: + * https://www.rfc-editor.org/rfc/rfc9562.html#name-example-of-a-uuidv7-value + * + * Monotonic Bit Layout: RFC rfc9562.6.2 Method 1, Dedicated Counter Bits ref: + * https://www.rfc-editor.org/rfc/rfc9562.html#section-6.2-5.1 + * + * 0 1 2 3 0 1 2 3 4 5 6 + * 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | unix_ts_ms | ver | seq_hi | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |var| seq_low | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | rand | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * seq is a 31 bit serialized counter; comprised of 12 bit seq_hi and 19 bit + * seq_low, and randomly initialized upon timestamp change. 31 bit counter size + * was selected as any bitwise operations in node are done as _signed_ 32 bit + * ints. we exclude the sign bit. + */ + +let _seqLow = null; +let _seqHigh = null; +let _msecs = 0; +function v7(options, buf, offset) { + options = options || {}; + + // initialize buffer and pointer + let i = buf && offset || 0; + const b = buf || new Uint8Array(16); + + // rnds is Uint8Array(16) filled with random bytes + const rnds = options.random || (options.rng || _rng.default)(); + + // milliseconds since unix epoch, 1970-01-01 00:00 + const msecs = options.msecs !== undefined ? options.msecs : Date.now(); + + // seq is user provided 31 bit counter + let seq = options.seq !== undefined ? options.seq : null; + + // initialize local seq high/low parts + let seqHigh = _seqHigh; + let seqLow = _seqLow; + + // check if clock has advanced and user has not provided msecs + if (msecs > _msecs && options.msecs === undefined) { + _msecs = msecs; + + // unless user provided seq, reset seq parts + if (seq !== null) { + seqHigh = null; + seqLow = null; + } + } + + // if we have a user provided seq + if (seq !== null) { + // trim provided seq to 31 bits of value, avoiding overflow + if (seq > 0x7fffffff) { + seq = 0x7fffffff; + } + + // split provided seq into high/low parts + seqHigh = seq >>> 19 & 0xfff; + seqLow = seq & 0x7ffff; + } + + // randomly initialize seq + if (seqHigh === null || seqLow === null) { + seqHigh = rnds[6] & 0x7f; + seqHigh = seqHigh << 8 | rnds[7]; + seqLow = rnds[8] & 0x3f; // pad for var + seqLow = seqLow << 8 | rnds[9]; + seqLow = seqLow << 5 | rnds[10] >>> 3; + } + + // increment seq if within msecs window + if (msecs + 10000 > _msecs && seq === null) { + if (++seqLow > 0x7ffff) { + seqLow = 0; + if (++seqHigh > 0xfff) { + seqHigh = 0; + + // increment internal _msecs. this allows us to continue incrementing + // while staying monotonic. Note, once we hit 10k milliseconds beyond system + // clock, we will reset breaking monotonicity (after (2^31)*10000 generations) + _msecs++; + } + } + } else { + // resetting; we have advanced more than + // 10k milliseconds beyond system clock + _msecs = msecs; + } + _seqHigh = seqHigh; + _seqLow = seqLow; + + // [bytes 0-5] 48 bits of local timestamp + b[i++] = _msecs / 0x10000000000 & 0xff; + b[i++] = _msecs / 0x100000000 & 0xff; + b[i++] = _msecs / 0x1000000 & 0xff; + b[i++] = _msecs / 0x10000 & 0xff; + b[i++] = _msecs / 0x100 & 0xff; + b[i++] = _msecs & 0xff; + + // [byte 6] - set 4 bits of version (7) with first 4 bits seq_hi + b[i++] = seqHigh >>> 4 & 0x0f | 0x70; + + // [byte 7] remaining 8 bits of seq_hi + b[i++] = seqHigh & 0xff; + + // [byte 8] - variant (2 bits), first 6 bits seq_low + b[i++] = seqLow >>> 13 & 0x3f | 0x80; + + // [byte 9] 8 bits seq_low + b[i++] = seqLow >>> 5 & 0xff; + + // [byte 10] remaining 5 bits seq_low, 3 bits random + b[i++] = seqLow << 3 & 0xff | rnds[10] & 0x07; + + // [bytes 11-15] always random + b[i++] = rnds[11]; + b[i++] = rnds[12]; + b[i++] = rnds[13]; + b[i++] = rnds[14]; + b[i++] = rnds[15]; + return buf || (0, _stringify.unsafeStringify)(b); +} +var _default = exports.default = v7; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/validate.js b/week-3/04-course-app-hard/node_modules/uuid/dist/validate.js new file mode 100644 index 000000000..d47181aad --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/validate.js @@ -0,0 +1,12 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _regex = _interopRequireDefault(require("./regex.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function validate(uuid) { + return typeof uuid === 'string' && _regex.default.test(uuid); +} +var _default = exports.default = validate; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/dist/version.js b/week-3/04-course-app-hard/node_modules/uuid/dist/version.js new file mode 100644 index 000000000..0c6bbdd5d --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/dist/version.js @@ -0,0 +1,15 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = void 0; +var _validate = _interopRequireDefault(require("./validate.js")); +function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } +function version(uuid) { + if (!(0, _validate.default)(uuid)) { + throw TypeError('Invalid UUID'); + } + return parseInt(uuid.slice(14, 15), 16); +} +var _default = exports.default = version; \ No newline at end of file diff --git a/week-3/04-course-app-hard/node_modules/uuid/package.json b/week-3/04-course-app-hard/node_modules/uuid/package.json new file mode 100644 index 000000000..dea12c6e9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/package.json @@ -0,0 +1,142 @@ +{ + "name": "uuid", + "version": "10.0.0", + "description": "RFC9562 UUIDs", + "funding": [ + "https://github.com/sponsors/broofa", + "https://github.com/sponsors/ctavan" + ], + "commitlint": { + "extends": [ + "@commitlint/config-conventional" + ] + }, + "keywords": [ + "uuid", + "guid", + "rfc4122", + "rfc9562" + ], + "license": "MIT", + "bin": { + "uuid": "dist/bin/uuid" + }, + "sideEffects": false, + "main": "./dist/index.js", + "exports": { + ".": { + "node": { + "module": "./dist/esm-node/index.js", + "require": "./dist/index.js", + "import": "./wrapper.mjs" + }, + "browser": { + "import": "./dist/esm-browser/index.js", + "require": "./dist/commonjs-browser/index.js" + }, + "default": "./dist/esm-browser/index.js" + }, + "./package.json": "./package.json" + }, + "module": "./dist/esm-node/index.js", + "browser": { + "./dist/esm-node/index.js": "./dist/esm-browser/index.js", + "./dist/md5.js": "./dist/md5-browser.js", + "./dist/native.js": "./dist/native-browser.js", + "./dist/rng.js": "./dist/rng-browser.js", + "./dist/sha1.js": "./dist/sha1-browser.js" + }, + "files": [ + "CHANGELOG.md", + "CONTRIBUTING.md", + "LICENSE.md", + "README.md", + "dist", + "wrapper.mjs" + ], + "devDependencies": { + "@babel/cli": "7.24.6", + "@babel/core": "7.24.6", + "@babel/eslint-parser": "7.24.6", + "@babel/plugin-syntax-import-attributes": "7.24.6", + "@babel/preset-env": "7.24.6", + "@commitlint/cli": "19.3.0", + "@commitlint/config-conventional": "19.2.2", + "@wdio/browserstack-service": "7.16.10", + "@wdio/cli": "7.16.10", + "@wdio/jasmine-framework": "7.16.6", + "@wdio/local-runner": "7.16.10", + "@wdio/spec-reporter": "7.16.9", + "@wdio/static-server-service": "7.16.6", + "bundlewatch": "0.3.3", + "eslint": "9.4.0", + "eslint-plugin-prettier": "5.1.3", + "globals": "15.3.0", + "husky": "9.0.11", + "jest": "29.7.0", + "lint-staged": "15.2.5", + "neostandard": "0.5.1", + "npm-run-all": "4.1.5", + "optional-dev-dependency": "2.0.1", + "prettier": "3.3.0", + "random-seed": "0.3.0", + "runmd": "1.3.9", + "standard-version": "9.5.0" + }, + "optionalDevDependencies": { + "@wdio/browserstack-service": "7.16.10", + "@wdio/cli": "7.16.10", + "@wdio/jasmine-framework": "7.16.6", + "@wdio/local-runner": "7.16.10", + "@wdio/spec-reporter": "7.16.9", + "@wdio/static-server-service": "7.16.6" + }, + "scripts": { + "examples:browser:webpack:build": "cd examples/browser-webpack && npm install && npm run build", + "examples:browser:rollup:build": "cd examples/browser-rollup && npm install && npm run build", + "examples:node:commonjs:test": "cd examples/node-commonjs && npm install && npm test", + "examples:node:esmodules:test": "cd examples/node-esmodules && npm install && npm test", + "examples:node:jest:test": "cd examples/node-jest && npm install && npm test", + "prepare": "husky install", + "lint": "npm run eslint:check && npm run prettier:check", + "eslint:check": "eslint src/ test/ examples/ *.js", + "eslint:fix": "eslint --fix src/ test/ examples/ *.js", + "pretest": "npm run build", + "test": "BABEL_ENV=commonjsNode node --throw-deprecation node_modules/.bin/jest test/unit/", + "test:matching": "BABEL_ENV=commonjsNode node --throw-deprecation node_modules/.bin/jest test/unit/ -t", + "pretest:browser": "optional-dev-dependency && npm run build && npm-run-all --parallel examples:browser:**", + "test:browser": "wdio run ./wdio.conf.js", + "pretest:node": "npm run build", + "test:node": "npm-run-all --parallel examples:node:**", + "test:pack": "./scripts/testpack.sh", + "pretest:benchmark": "npm run build", + "test:benchmark": "cd examples/benchmark && HUSKY=0 npm install && npm test", + "prettier:check": "prettier --check .", + "prettier:fix": "prettier --write .", + "bundlewatch": "npm run pretest:browser && bundlewatch --config bundlewatch.config.json", + "md": "runmd --watch --output=README.md README_js.md", + "docs": "npm run build && npx runmd --output=README.md README_js.md", + "docs:diff": "npm run docs && git diff --quiet README.md", + "build": "./scripts/build.sh", + "prepack": "npm run build", + "release": "standard-version --no-verify" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/uuidjs/uuid.git" + }, + "lint-staged": { + "*": [ + "prettier --no-error-on-unmatched-pattern --write" + ], + "*.{js,jsx}": [ + "eslint --no-error-on-unmatched-pattern --fix" + ] + }, + "standard-version": { + "scripts": { + "postchangelog": "prettier --write CHANGELOG.md" + } + }, + "packageManager": "npm@10.8.1+sha256.b8807aebb9656758e2872fa6e7c564b506aa2faa9297439a478d471d2fe32483" +} diff --git a/week-3/04-course-app-hard/node_modules/uuid/wrapper.mjs b/week-3/04-course-app-hard/node_modules/uuid/wrapper.mjs new file mode 100644 index 000000000..fba64f6eb --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/uuid/wrapper.mjs @@ -0,0 +1,15 @@ +import uuid from './dist/index.js'; +export const v1 = uuid.v1; +export const v1ToV6 = uuid.v1ToV6; +export const v3 = uuid.v3; +export const v4 = uuid.v4; +export const v5 = uuid.v5; +export const v6 = uuid.v6; +export const v6ToV1 = uuid.v6ToV1; +export const v7 = uuid.v7; +export const NIL = uuid.NIL; +export const MAX = uuid.MAX; +export const version = uuid.version; +export const validate = uuid.validate; +export const stringify = uuid.stringify; +export const parse = uuid.parse; diff --git a/week-3/04-course-app-hard/node_modules/vary/HISTORY.md b/week-3/04-course-app-hard/node_modules/vary/HISTORY.md new file mode 100644 index 000000000..f6cbcf7f9 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/vary/HISTORY.md @@ -0,0 +1,39 @@ +1.1.2 / 2017-09-23 +================== + + * perf: improve header token parsing speed + +1.1.1 / 2017-03-20 +================== + + * perf: hoist regular expression + +1.1.0 / 2015-09-29 +================== + + * Only accept valid field names in the `field` argument + - Ensures the resulting string is a valid HTTP header value + +1.0.1 / 2015-07-08 +================== + + * Fix setting empty header from empty `field` + * perf: enable strict mode + * perf: remove argument reassignments + +1.0.0 / 2014-08-10 +================== + + * Accept valid `Vary` header string as `field` + * Add `vary.append` for low-level string manipulation + * Move to `jshttp` orgainzation + +0.1.0 / 2014-06-05 +================== + + * Support array of fields to set + +0.0.0 / 2014-06-04 +================== + + * Initial release diff --git a/week-3/04-course-app-hard/node_modules/vary/LICENSE b/week-3/04-course-app-hard/node_modules/vary/LICENSE new file mode 100644 index 000000000..84441fbb5 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/vary/LICENSE @@ -0,0 +1,22 @@ +(The MIT License) + +Copyright (c) 2014-2017 Douglas Christopher Wilson + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/vary/README.md b/week-3/04-course-app-hard/node_modules/vary/README.md new file mode 100644 index 000000000..cc000b346 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/vary/README.md @@ -0,0 +1,101 @@ +# vary + +[![NPM Version][npm-image]][npm-url] +[![NPM Downloads][downloads-image]][downloads-url] +[![Node.js Version][node-version-image]][node-version-url] +[![Build Status][travis-image]][travis-url] +[![Test Coverage][coveralls-image]][coveralls-url] + +Manipulate the HTTP Vary header + +## Installation + +This is a [Node.js](https://nodejs.org/en/) module available through the +[npm registry](https://www.npmjs.com/). Installation is done using the +[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): + +```sh +$ npm install vary +``` + +## API + + + +```js +var vary = require('vary') +``` + +### vary(res, field) + +Adds the given header `field` to the `Vary` response header of `res`. +This can be a string of a single field, a string of a valid `Vary` +header, or an array of multiple fields. + +This will append the header if not already listed, otherwise leaves +it listed in the current location. + + + +```js +// Append "Origin" to the Vary header of the response +vary(res, 'Origin') +``` + +### vary.append(header, field) + +Adds the given header `field` to the `Vary` response header string `header`. +This can be a string of a single field, a string of a valid `Vary` header, +or an array of multiple fields. + +This will append the header if not already listed, otherwise leaves +it listed in the current location. The new header string is returned. + + + +```js +// Get header string appending "Origin" to "Accept, User-Agent" +vary.append('Accept, User-Agent', 'Origin') +``` + +## Examples + +### Updating the Vary header when content is based on it + +```js +var http = require('http') +var vary = require('vary') + +http.createServer(function onRequest (req, res) { + // about to user-agent sniff + vary(res, 'User-Agent') + + var ua = req.headers['user-agent'] || '' + var isMobile = /mobi|android|touch|mini/i.test(ua) + + // serve site, depending on isMobile + res.setHeader('Content-Type', 'text/html') + res.end('You are (probably) ' + (isMobile ? '' : 'not ') + 'a mobile user') +}) +``` + +## Testing + +```sh +$ npm test +``` + +## License + +[MIT](LICENSE) + +[npm-image]: https://img.shields.io/npm/v/vary.svg +[npm-url]: https://npmjs.org/package/vary +[node-version-image]: https://img.shields.io/node/v/vary.svg +[node-version-url]: https://nodejs.org/en/download +[travis-image]: https://img.shields.io/travis/jshttp/vary/master.svg +[travis-url]: https://travis-ci.org/jshttp/vary +[coveralls-image]: https://img.shields.io/coveralls/jshttp/vary/master.svg +[coveralls-url]: https://coveralls.io/r/jshttp/vary +[downloads-image]: https://img.shields.io/npm/dm/vary.svg +[downloads-url]: https://npmjs.org/package/vary diff --git a/week-3/04-course-app-hard/node_modules/vary/index.js b/week-3/04-course-app-hard/node_modules/vary/index.js new file mode 100644 index 000000000..5b5e74127 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/vary/index.js @@ -0,0 +1,149 @@ +/*! + * vary + * Copyright(c) 2014-2017 Douglas Christopher Wilson + * MIT Licensed + */ + +'use strict' + +/** + * Module exports. + */ + +module.exports = vary +module.exports.append = append + +/** + * RegExp to match field-name in RFC 7230 sec 3.2 + * + * field-name = token + * token = 1*tchar + * tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" + * / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~" + * / DIGIT / ALPHA + * ; any VCHAR, except delimiters + */ + +var FIELD_NAME_REGEXP = /^[!#$%&'*+\-.^_`|~0-9A-Za-z]+$/ + +/** + * Append a field to a vary header. + * + * @param {String} header + * @param {String|Array} field + * @return {String} + * @public + */ + +function append (header, field) { + if (typeof header !== 'string') { + throw new TypeError('header argument is required') + } + + if (!field) { + throw new TypeError('field argument is required') + } + + // get fields array + var fields = !Array.isArray(field) + ? parse(String(field)) + : field + + // assert on invalid field names + for (var j = 0; j < fields.length; j++) { + if (!FIELD_NAME_REGEXP.test(fields[j])) { + throw new TypeError('field argument contains an invalid header name') + } + } + + // existing, unspecified vary + if (header === '*') { + return header + } + + // enumerate current values + var val = header + var vals = parse(header.toLowerCase()) + + // unspecified vary + if (fields.indexOf('*') !== -1 || vals.indexOf('*') !== -1) { + return '*' + } + + for (var i = 0; i < fields.length; i++) { + var fld = fields[i].toLowerCase() + + // append value (case-preserving) + if (vals.indexOf(fld) === -1) { + vals.push(fld) + val = val + ? val + ', ' + fields[i] + : fields[i] + } + } + + return val +} + +/** + * Parse a vary header into an array. + * + * @param {String} header + * @return {Array} + * @private + */ + +function parse (header) { + var end = 0 + var list = [] + var start = 0 + + // gather tokens + for (var i = 0, len = header.length; i < len; i++) { + switch (header.charCodeAt(i)) { + case 0x20: /* */ + if (start === end) { + start = end = i + 1 + } + break + case 0x2c: /* , */ + list.push(header.substring(start, end)) + start = end = i + 1 + break + default: + end = i + 1 + break + } + } + + // final token + list.push(header.substring(start, end)) + + return list +} + +/** + * Mark that a request is varied on a header field. + * + * @param {Object} res + * @param {String|Array} field + * @public + */ + +function vary (res, field) { + if (!res || !res.getHeader || !res.setHeader) { + // quack quack + throw new TypeError('res argument is required') + } + + // get existing header + var val = res.getHeader('Vary') || '' + var header = Array.isArray(val) + ? val.join(', ') + : String(val) + + // set new header + if ((val = append(header, field))) { + res.setHeader('Vary', val) + } +} diff --git a/week-3/04-course-app-hard/node_modules/vary/package.json b/week-3/04-course-app-hard/node_modules/vary/package.json new file mode 100644 index 000000000..028f72a93 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/vary/package.json @@ -0,0 +1,43 @@ +{ + "name": "vary", + "description": "Manipulate the HTTP Vary header", + "version": "1.1.2", + "author": "Douglas Christopher Wilson ", + "license": "MIT", + "keywords": [ + "http", + "res", + "vary" + ], + "repository": "jshttp/vary", + "devDependencies": { + "beautify-benchmark": "0.2.4", + "benchmark": "2.1.4", + "eslint": "3.19.0", + "eslint-config-standard": "10.2.1", + "eslint-plugin-import": "2.7.0", + "eslint-plugin-markdown": "1.0.0-beta.6", + "eslint-plugin-node": "5.1.1", + "eslint-plugin-promise": "3.5.0", + "eslint-plugin-standard": "3.0.1", + "istanbul": "0.4.5", + "mocha": "2.5.3", + "supertest": "1.1.0" + }, + "files": [ + "HISTORY.md", + "LICENSE", + "README.md", + "index.js" + ], + "engines": { + "node": ">= 0.8" + }, + "scripts": { + "bench": "node benchmark/index.js", + "lint": "eslint --plugin markdown --ext js,md .", + "test": "mocha --reporter spec --bail --check-leaks test/", + "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/", + "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/" + } +} diff --git a/week-3/04-course-app-hard/node_modules/webidl-conversions/LICENSE.md b/week-3/04-course-app-hard/node_modules/webidl-conversions/LICENSE.md new file mode 100644 index 000000000..d4a994f50 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/webidl-conversions/LICENSE.md @@ -0,0 +1,12 @@ +# The BSD 2-Clause License + +Copyright (c) 2014, Domenic Denicola +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/week-3/04-course-app-hard/node_modules/webidl-conversions/README.md b/week-3/04-course-app-hard/node_modules/webidl-conversions/README.md new file mode 100644 index 000000000..16cc39315 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/webidl-conversions/README.md @@ -0,0 +1,99 @@ +# Web IDL Type Conversions on JavaScript Values + +This package implements, in JavaScript, the algorithms to convert a given JavaScript value according to a given [Web IDL](http://heycam.github.io/webidl/) [type](http://heycam.github.io/webidl/#idl-types). + +The goal is that you should be able to write code like + +```js +"use strict"; +const conversions = require("webidl-conversions"); + +function doStuff(x, y) { + x = conversions["boolean"](x); + y = conversions["unsigned long"](y); + // actual algorithm code here +} +``` + +and your function `doStuff` will behave the same as a Web IDL operation declared as + +```webidl +undefined doStuff(boolean x, unsigned long y); +``` + +## API + +This package's main module's default export is an object with a variety of methods, each corresponding to a different Web IDL type. Each method, when invoked on a JavaScript value, will give back the new JavaScript value that results after passing through the Web IDL conversion rules. (See below for more details on what that means.) Alternately, the method could throw an error, if the Web IDL algorithm is specified to do so: for example `conversions["float"](NaN)` [will throw a `TypeError`](http://heycam.github.io/webidl/#es-float). + +Each method also accepts a second, optional, parameter for miscellaneous options. For conversion methods that throw errors, a string option `{ context }` may be provided to provide more information in the error message. (For example, `conversions["float"](NaN, { context: "Argument 1 of Interface's operation" })` will throw an error with message `"Argument 1 of Interface's operation is not a finite floating-point value."`) + +If we are dealing with multiple JavaScript realms (such as those created using Node.js' [vm](https://nodejs.org/api/vm.html) module or the HTML `iframe` element), and exceptions from another realm need to be thrown, one can supply an object option `globals` containing the following properties: + +```js +{ + globals: { + Number, + String, + TypeError + } +} +``` + +Those specific functions will be used when throwing exceptions. + +Specific conversions may also accept other options, the details of which can be found below. + +## Conversions implemented + +Conversions for all of the basic types from the Web IDL specification are implemented: + +- [`any`](https://heycam.github.io/webidl/#es-any) +- [`undefined`](https://heycam.github.io/webidl/#es-undefined) +- [`boolean`](https://heycam.github.io/webidl/#es-boolean) +- [Integer types](https://heycam.github.io/webidl/#es-integer-types), which can additionally be provided the boolean options `{ clamp, enforceRange }` as a second parameter +- [`float`](https://heycam.github.io/webidl/#es-float), [`unrestricted float`](https://heycam.github.io/webidl/#es-unrestricted-float) +- [`double`](https://heycam.github.io/webidl/#es-double), [`unrestricted double`](https://heycam.github.io/webidl/#es-unrestricted-double) +- [`DOMString`](https://heycam.github.io/webidl/#es-DOMString), which can additionally be provided the boolean option `{ treatNullAsEmptyString }` as a second parameter +- [`ByteString`](https://heycam.github.io/webidl/#es-ByteString), [`USVString`](https://heycam.github.io/webidl/#es-USVString) +- [`object`](https://heycam.github.io/webidl/#es-object) +- [Buffer source types](https://heycam.github.io/webidl/#es-buffer-source-types), which can additionally be provided with the boolean option `{ allowShared }` as a second parameter + +Additionally, for convenience, the following derived type definitions are implemented: + +- [`ArrayBufferView`](https://heycam.github.io/webidl/#ArrayBufferView), which can additionally be provided with the boolean option `{ allowShared }` as a second parameter +- [`BufferSource`](https://heycam.github.io/webidl/#BufferSource) +- [`DOMTimeStamp`](https://heycam.github.io/webidl/#DOMTimeStamp) + +Derived types, such as nullable types, promise types, sequences, records, etc. are not handled by this library. You may wish to investigate the [webidl2js](https://github.com/jsdom/webidl2js) project. + +### A note on the `long long` types + +The `long long` and `unsigned long long` Web IDL types can hold values that cannot be stored in JavaScript numbers. Conversions are still accurate as we make use of BigInt in the conversion process, but in the case of `unsigned long long` we simply cannot represent some possible output values in JavaScript. For example, converting the JavaScript number `-1` to a Web IDL `unsigned long long` is supposed to produce the Web IDL value `18446744073709551615`. Since we are representing our Web IDL values in JavaScript, we can't represent `18446744073709551615`, so we instead the best we could do is `18446744073709551616` as the output. + +To mitigate this, we could return the raw BigInt value from the conversion function, but right now it is not implemented. If your use case requires such precision, [file an issue](https://github.com/jsdom/webidl-conversions/issues/new). + +On the other hand, `long long` conversion is always accurate, since the input value can never be more precise than the output value. + +### A note on `BufferSource` types + +All of the `BufferSource` types will throw when the relevant `ArrayBuffer` has been detached. This technically is not part of the [specified conversion algorithm](https://heycam.github.io/webidl/#es-buffer-source-types), but instead part of the [getting a reference/getting a copy](https://heycam.github.io/webidl/#ref-for-dfn-get-buffer-source-reference%E2%91%A0) algorithms. We've consolidated them here for convenience and ease of implementation, but if there is a need to separate them in the future, please open an issue so we can investigate. + +## Background + +What's actually going on here, conceptually, is pretty weird. Let's try to explain. + +Web IDL, as part of its madness-inducing design, has its own type system. When people write algorithms in web platform specs, they usually operate on Web IDL values, i.e. instances of Web IDL types. For example, if they were specifying the algorithm for our `doStuff` operation above, they would treat `x` as a Web IDL value of [Web IDL type `boolean`](http://heycam.github.io/webidl/#idl-boolean). Crucially, they would _not_ treat `x` as a JavaScript variable whose value is either the JavaScript `true` or `false`. They're instead working in a different type system altogether, with its own rules. + +Separately from its type system, Web IDL defines a ["binding"](http://heycam.github.io/webidl/#ecmascript-binding) of the type system into JavaScript. This contains rules like: when you pass a JavaScript value to the JavaScript method that manifests a given Web IDL operation, how does that get converted into a Web IDL value? For example, a JavaScript `true` passed in the position of a Web IDL `boolean` argument becomes a Web IDL `true`. But, a JavaScript `true` passed in the position of a [Web IDL `unsigned long`](http://heycam.github.io/webidl/#idl-unsigned-long) becomes a Web IDL `1`. And so on. + +Finally, we have the actual implementation code. This is usually C++, although these days [some smart people are using Rust](https://github.com/servo/servo). The implementation, of course, has its own type system. So when they implement the Web IDL algorithms, they don't actually use Web IDL values, since those aren't "real" outside of specs. Instead, implementations apply the Web IDL binding rules in such a way as to convert incoming JavaScript values into C++ values. For example, if code in the browser called `doStuff(true, true)`, then the implementation code would eventually receive a C++ `bool` containing `true` and a C++ `uint32_t` containing `1`. + +The upside of all this is that implementations can abstract all the conversion logic away, letting Web IDL handle it, and focus on implementing the relevant methods in C++ with values of the correct type already provided. That is payoff of Web IDL, in a nutshell. + +And getting to that payoff is the goal of _this_ project—but for JavaScript implementations, instead of C++ ones. That is, this library is designed to make it easier for JavaScript developers to write functions that behave like a given Web IDL operation. So conceptually, the conversion pipeline, which in its general form is JavaScript values ↦ Web IDL values ↦ implementation-language values, in this case becomes JavaScript values ↦ Web IDL values ↦ JavaScript values. And that intermediate step is where all the logic is performed: a JavaScript `true` becomes a Web IDL `1` in an unsigned long context, which then becomes a JavaScript `1`. + +## Don't use this + +Seriously, why would you ever use this? You really shouldn't. Web IDL is … strange, and you shouldn't be emulating its semantics. If you're looking for a generic argument-processing library, you should find one with better rules than those from Web IDL. In general, your JavaScript should not be trying to become more like Web IDL; if anything, we should fix Web IDL to make it more like JavaScript. + +The _only_ people who should use this are those trying to create faithful implementations (or polyfills) of web platform interfaces defined in Web IDL. Its main consumer is the [jsdom](https://github.com/jsdom/jsdom) project. diff --git a/week-3/04-course-app-hard/node_modules/webidl-conversions/lib/index.js b/week-3/04-course-app-hard/node_modules/webidl-conversions/lib/index.js new file mode 100644 index 000000000..0229347c1 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/webidl-conversions/lib/index.js @@ -0,0 +1,450 @@ +"use strict"; + +function makeException(ErrorType, message, options) { + if (options.globals) { + ErrorType = options.globals[ErrorType.name]; + } + return new ErrorType(`${options.context ? options.context : "Value"} ${message}.`); +} + +function toNumber(value, options) { + if (typeof value === "bigint") { + throw makeException(TypeError, "is a BigInt which cannot be converted to a number", options); + } + if (!options.globals) { + return Number(value); + } + return options.globals.Number(value); +} + +// Round x to the nearest integer, choosing the even integer if it lies halfway between two. +function evenRound(x) { + // There are four cases for numbers with fractional part being .5: + // + // case | x | floor(x) | round(x) | expected | x <> 0 | x % 1 | x & 1 | example + // 1 | 2n + 0.5 | 2n | 2n + 1 | 2n | > | 0.5 | 0 | 0.5 -> 0 + // 2 | 2n + 1.5 | 2n + 1 | 2n + 2 | 2n + 2 | > | 0.5 | 1 | 1.5 -> 2 + // 3 | -2n - 0.5 | -2n - 1 | -2n | -2n | < | -0.5 | 0 | -0.5 -> 0 + // 4 | -2n - 1.5 | -2n - 2 | -2n - 1 | -2n - 2 | < | -0.5 | 1 | -1.5 -> -2 + // (where n is a non-negative integer) + // + // Branch here for cases 1 and 4 + if ((x > 0 && (x % 1) === +0.5 && (x & 1) === 0) || + (x < 0 && (x % 1) === -0.5 && (x & 1) === 1)) { + return censorNegativeZero(Math.floor(x)); + } + + return censorNegativeZero(Math.round(x)); +} + +function integerPart(n) { + return censorNegativeZero(Math.trunc(n)); +} + +function sign(x) { + return x < 0 ? -1 : 1; +} + +function modulo(x, y) { + // https://tc39.github.io/ecma262/#eqn-modulo + // Note that http://stackoverflow.com/a/4467559/3191 does NOT work for large modulos + const signMightNotMatch = x % y; + if (sign(y) !== sign(signMightNotMatch)) { + return signMightNotMatch + y; + } + return signMightNotMatch; +} + +function censorNegativeZero(x) { + return x === 0 ? 0 : x; +} + +function createIntegerConversion(bitLength, { unsigned }) { + let lowerBound, upperBound; + if (unsigned) { + lowerBound = 0; + upperBound = 2 ** bitLength - 1; + } else { + lowerBound = -(2 ** (bitLength - 1)); + upperBound = 2 ** (bitLength - 1) - 1; + } + + const twoToTheBitLength = 2 ** bitLength; + const twoToOneLessThanTheBitLength = 2 ** (bitLength - 1); + + return (value, options = {}) => { + let x = toNumber(value, options); + x = censorNegativeZero(x); + + if (options.enforceRange) { + if (!Number.isFinite(x)) { + throw makeException(TypeError, "is not a finite number", options); + } + + x = integerPart(x); + + if (x < lowerBound || x > upperBound) { + throw makeException( + TypeError, + `is outside the accepted range of ${lowerBound} to ${upperBound}, inclusive`, + options + ); + } + + return x; + } + + if (!Number.isNaN(x) && options.clamp) { + x = Math.min(Math.max(x, lowerBound), upperBound); + x = evenRound(x); + return x; + } + + if (!Number.isFinite(x) || x === 0) { + return 0; + } + x = integerPart(x); + + // Math.pow(2, 64) is not accurately representable in JavaScript, so try to avoid these per-spec operations if + // possible. Hopefully it's an optimization for the non-64-bitLength cases too. + if (x >= lowerBound && x <= upperBound) { + return x; + } + + // These will not work great for bitLength of 64, but oh well. See the README for more details. + x = modulo(x, twoToTheBitLength); + if (!unsigned && x >= twoToOneLessThanTheBitLength) { + return x - twoToTheBitLength; + } + return x; + }; +} + +function createLongLongConversion(bitLength, { unsigned }) { + const upperBound = Number.MAX_SAFE_INTEGER; + const lowerBound = unsigned ? 0 : Number.MIN_SAFE_INTEGER; + const asBigIntN = unsigned ? BigInt.asUintN : BigInt.asIntN; + + return (value, options = {}) => { + let x = toNumber(value, options); + x = censorNegativeZero(x); + + if (options.enforceRange) { + if (!Number.isFinite(x)) { + throw makeException(TypeError, "is not a finite number", options); + } + + x = integerPart(x); + + if (x < lowerBound || x > upperBound) { + throw makeException( + TypeError, + `is outside the accepted range of ${lowerBound} to ${upperBound}, inclusive`, + options + ); + } + + return x; + } + + if (!Number.isNaN(x) && options.clamp) { + x = Math.min(Math.max(x, lowerBound), upperBound); + x = evenRound(x); + return x; + } + + if (!Number.isFinite(x) || x === 0) { + return 0; + } + + let xBigInt = BigInt(integerPart(x)); + xBigInt = asBigIntN(bitLength, xBigInt); + return Number(xBigInt); + }; +} + +exports.any = value => { + return value; +}; + +exports.undefined = () => { + return undefined; +}; + +exports.boolean = value => { + return Boolean(value); +}; + +exports.byte = createIntegerConversion(8, { unsigned: false }); +exports.octet = createIntegerConversion(8, { unsigned: true }); + +exports.short = createIntegerConversion(16, { unsigned: false }); +exports["unsigned short"] = createIntegerConversion(16, { unsigned: true }); + +exports.long = createIntegerConversion(32, { unsigned: false }); +exports["unsigned long"] = createIntegerConversion(32, { unsigned: true }); + +exports["long long"] = createLongLongConversion(64, { unsigned: false }); +exports["unsigned long long"] = createLongLongConversion(64, { unsigned: true }); + +exports.double = (value, options = {}) => { + const x = toNumber(value, options); + + if (!Number.isFinite(x)) { + throw makeException(TypeError, "is not a finite floating-point value", options); + } + + return x; +}; + +exports["unrestricted double"] = (value, options = {}) => { + const x = toNumber(value, options); + + return x; +}; + +exports.float = (value, options = {}) => { + const x = toNumber(value, options); + + if (!Number.isFinite(x)) { + throw makeException(TypeError, "is not a finite floating-point value", options); + } + + if (Object.is(x, -0)) { + return x; + } + + const y = Math.fround(x); + + if (!Number.isFinite(y)) { + throw makeException(TypeError, "is outside the range of a single-precision floating-point value", options); + } + + return y; +}; + +exports["unrestricted float"] = (value, options = {}) => { + const x = toNumber(value, options); + + if (isNaN(x)) { + return x; + } + + if (Object.is(x, -0)) { + return x; + } + + return Math.fround(x); +}; + +exports.DOMString = (value, options = {}) => { + if (options.treatNullAsEmptyString && value === null) { + return ""; + } + + if (typeof value === "symbol") { + throw makeException(TypeError, "is a symbol, which cannot be converted to a string", options); + } + + const StringCtor = options.globals ? options.globals.String : String; + return StringCtor(value); +}; + +exports.ByteString = (value, options = {}) => { + const x = exports.DOMString(value, options); + let c; + for (let i = 0; (c = x.codePointAt(i)) !== undefined; ++i) { + if (c > 255) { + throw makeException(TypeError, "is not a valid ByteString", options); + } + } + + return x; +}; + +exports.USVString = (value, options = {}) => { + const S = exports.DOMString(value, options); + const n = S.length; + const U = []; + for (let i = 0; i < n; ++i) { + const c = S.charCodeAt(i); + if (c < 0xD800 || c > 0xDFFF) { + U.push(String.fromCodePoint(c)); + } else if (0xDC00 <= c && c <= 0xDFFF) { + U.push(String.fromCodePoint(0xFFFD)); + } else if (i === n - 1) { + U.push(String.fromCodePoint(0xFFFD)); + } else { + const d = S.charCodeAt(i + 1); + if (0xDC00 <= d && d <= 0xDFFF) { + const a = c & 0x3FF; + const b = d & 0x3FF; + U.push(String.fromCodePoint((2 << 15) + ((2 << 9) * a) + b)); + ++i; + } else { + U.push(String.fromCodePoint(0xFFFD)); + } + } + } + + return U.join(""); +}; + +exports.object = (value, options = {}) => { + if (value === null || (typeof value !== "object" && typeof value !== "function")) { + throw makeException(TypeError, "is not an object", options); + } + + return value; +}; + +const abByteLengthGetter = + Object.getOwnPropertyDescriptor(ArrayBuffer.prototype, "byteLength").get; +const sabByteLengthGetter = + typeof SharedArrayBuffer === "function" ? + Object.getOwnPropertyDescriptor(SharedArrayBuffer.prototype, "byteLength").get : + null; + +function isNonSharedArrayBuffer(value) { + try { + // This will throw on SharedArrayBuffers, but not detached ArrayBuffers. + // (The spec says it should throw, but the spec conflicts with implementations: https://github.com/tc39/ecma262/issues/678) + abByteLengthGetter.call(value); + + return true; + } catch { + return false; + } +} + +function isSharedArrayBuffer(value) { + try { + sabByteLengthGetter.call(value); + return true; + } catch { + return false; + } +} + +function isArrayBufferDetached(value) { + try { + // eslint-disable-next-line no-new + new Uint8Array(value); + return false; + } catch { + return true; + } +} + +exports.ArrayBuffer = (value, options = {}) => { + if (!isNonSharedArrayBuffer(value)) { + if (options.allowShared && !isSharedArrayBuffer(value)) { + throw makeException(TypeError, "is not an ArrayBuffer or SharedArrayBuffer", options); + } + throw makeException(TypeError, "is not an ArrayBuffer", options); + } + if (isArrayBufferDetached(value)) { + throw makeException(TypeError, "is a detached ArrayBuffer", options); + } + + return value; +}; + +const dvByteLengthGetter = + Object.getOwnPropertyDescriptor(DataView.prototype, "byteLength").get; +exports.DataView = (value, options = {}) => { + try { + dvByteLengthGetter.call(value); + } catch (e) { + throw makeException(TypeError, "is not a DataView", options); + } + + if (!options.allowShared && isSharedArrayBuffer(value.buffer)) { + throw makeException(TypeError, "is backed by a SharedArrayBuffer, which is not allowed", options); + } + if (isArrayBufferDetached(value.buffer)) { + throw makeException(TypeError, "is backed by a detached ArrayBuffer", options); + } + + return value; +}; + +// Returns the unforgeable `TypedArray` constructor name or `undefined`, +// if the `this` value isn't a valid `TypedArray` object. +// +// https://tc39.es/ecma262/#sec-get-%typedarray%.prototype-@@tostringtag +const typedArrayNameGetter = Object.getOwnPropertyDescriptor( + Object.getPrototypeOf(Uint8Array).prototype, + Symbol.toStringTag +).get; +[ + Int8Array, + Int16Array, + Int32Array, + Uint8Array, + Uint16Array, + Uint32Array, + Uint8ClampedArray, + Float32Array, + Float64Array +].forEach(func => { + const { name } = func; + const article = /^[AEIOU]/u.test(name) ? "an" : "a"; + exports[name] = (value, options = {}) => { + if (!ArrayBuffer.isView(value) || typedArrayNameGetter.call(value) !== name) { + throw makeException(TypeError, `is not ${article} ${name} object`, options); + } + if (!options.allowShared && isSharedArrayBuffer(value.buffer)) { + throw makeException(TypeError, "is a view on a SharedArrayBuffer, which is not allowed", options); + } + if (isArrayBufferDetached(value.buffer)) { + throw makeException(TypeError, "is a view on a detached ArrayBuffer", options); + } + + return value; + }; +}); + +// Common definitions + +exports.ArrayBufferView = (value, options = {}) => { + if (!ArrayBuffer.isView(value)) { + throw makeException(TypeError, "is not a view on an ArrayBuffer or SharedArrayBuffer", options); + } + + if (!options.allowShared && isSharedArrayBuffer(value.buffer)) { + throw makeException(TypeError, "is a view on a SharedArrayBuffer, which is not allowed", options); + } + + if (isArrayBufferDetached(value.buffer)) { + throw makeException(TypeError, "is a view on a detached ArrayBuffer", options); + } + return value; +}; + +exports.BufferSource = (value, options = {}) => { + if (ArrayBuffer.isView(value)) { + if (!options.allowShared && isSharedArrayBuffer(value.buffer)) { + throw makeException(TypeError, "is a view on a SharedArrayBuffer, which is not allowed", options); + } + + if (isArrayBufferDetached(value.buffer)) { + throw makeException(TypeError, "is a view on a detached ArrayBuffer", options); + } + return value; + } + + if (!options.allowShared && !isNonSharedArrayBuffer(value)) { + throw makeException(TypeError, "is not an ArrayBuffer or a view on one", options); + } + if (options.allowShared && !isSharedArrayBuffer(value) && !isNonSharedArrayBuffer(value)) { + throw makeException(TypeError, "is not an ArrayBuffer, SharedArrayBuffer, or a view on one", options); + } + if (isArrayBufferDetached(value)) { + throw makeException(TypeError, "is a detached ArrayBuffer", options); + } + + return value; +}; + +exports.DOMTimeStamp = exports["unsigned long long"]; diff --git a/week-3/04-course-app-hard/node_modules/webidl-conversions/package.json b/week-3/04-course-app-hard/node_modules/webidl-conversions/package.json new file mode 100644 index 000000000..20747bb42 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/webidl-conversions/package.json @@ -0,0 +1,35 @@ +{ + "name": "webidl-conversions", + "version": "7.0.0", + "description": "Implements the WebIDL algorithms for converting to and from JavaScript values", + "main": "lib/index.js", + "scripts": { + "lint": "eslint .", + "test": "mocha test/*.js", + "test-no-sab": "mocha --parallel --jobs 2 --require test/helpers/delete-sab.js test/*.js", + "coverage": "nyc mocha test/*.js" + }, + "_scripts_comments": { + "test-no-sab": "Node.js internals are broken by deleting SharedArrayBuffer if you run tests on the main thread. Using Mocha's parallel mode avoids this." + }, + "repository": "jsdom/webidl-conversions", + "keywords": [ + "webidl", + "web", + "types" + ], + "files": [ + "lib/" + ], + "author": "Domenic Denicola (https://domenic.me/)", + "license": "BSD-2-Clause", + "devDependencies": { + "@domenic/eslint-config": "^1.3.0", + "eslint": "^7.32.0", + "mocha": "^9.1.1", + "nyc": "^15.1.0" + }, + "engines": { + "node": ">=12" + } +} diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/LICENSE.txt b/week-3/04-course-app-hard/node_modules/whatwg-url/LICENSE.txt new file mode 100644 index 000000000..8e8c25c3a --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/LICENSE.txt @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) Sebastian Mayr + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/README.md b/week-3/04-course-app-hard/node_modules/whatwg-url/README.md new file mode 100644 index 000000000..07a5fa53c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/README.md @@ -0,0 +1,106 @@ +# whatwg-url + +whatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spec.whatwg.org/). It can be used standalone, but it also exposes a lot of the internal algorithms that are useful for integrating a URL parser into a project like [jsdom](https://github.com/jsdom/jsdom). + +## Specification conformance + +whatwg-url is currently up to date with the URL spec up to commit [eee49fd](https://github.com/whatwg/url/commit/eee49fdf4f99d59f717cbeb0bce29fda930196d4). + +For `file:` URLs, whose [origin is left unspecified](https://url.spec.whatwg.org/#concept-url-origin), whatwg-url chooses to use a new opaque origin (which serializes to `"null"`). + +whatwg-url does not yet implement any encoding handling beyond UTF-8. That is, the _encoding override_ parameter does not exist in our API. + +## API + +### The `URL` and `URLSearchParams` classes + +The main API is provided by the [`URL`](https://url.spec.whatwg.org/#url-class) and [`URLSearchParams`](https://url.spec.whatwg.org/#interface-urlsearchparams) exports, which follows the spec's behavior in all ways (including e.g. `USVString` conversion). Most consumers of this library will want to use these. + +### Low-level URL Standard API + +The following methods are exported for use by places like jsdom that need to implement things like [`HTMLHyperlinkElementUtils`](https://html.spec.whatwg.org/#htmlhyperlinkelementutils). They mostly operate on or return an "internal URL" or ["URL record"](https://url.spec.whatwg.org/#concept-url) type. + +- [URL parser](https://url.spec.whatwg.org/#concept-url-parser): `parseURL(input, { baseURL })` +- [Basic URL parser](https://url.spec.whatwg.org/#concept-basic-url-parser): `basicURLParse(input, { baseURL, url, stateOverride })` +- [URL serializer](https://url.spec.whatwg.org/#concept-url-serializer): `serializeURL(urlRecord, excludeFragment)` +- [Host serializer](https://url.spec.whatwg.org/#concept-host-serializer): `serializeHost(hostFromURLRecord)` +- [URL path serializer](https://url.spec.whatwg.org/#url-path-serializer): `serializePath(urlRecord)` +- [Serialize an integer](https://url.spec.whatwg.org/#serialize-an-integer): `serializeInteger(number)` +- [Origin](https://url.spec.whatwg.org/#concept-url-origin) [serializer](https://html.spec.whatwg.org/multipage/origin.html#ascii-serialisation-of-an-origin): `serializeURLOrigin(urlRecord)` +- [Set the username](https://url.spec.whatwg.org/#set-the-username): `setTheUsername(urlRecord, usernameString)` +- [Set the password](https://url.spec.whatwg.org/#set-the-password): `setThePassword(urlRecord, passwordString)` +- [Has an opaque path](https://url.spec.whatwg.org/#url-opaque-path): `hasAnOpaquePath(urlRecord)` +- [Cannot have a username/password/port](https://url.spec.whatwg.org/#cannot-have-a-username-password-port): `cannotHaveAUsernamePasswordPort(urlRecord)` +- [Percent decode bytes](https://url.spec.whatwg.org/#percent-decode): `percentDecodeBytes(uint8Array)` +- [Percent decode a string](https://url.spec.whatwg.org/#percent-decode-string): `percentDecodeString(string)` + +The `stateOverride` parameter is one of the following strings: + +- [`"scheme start"`](https://url.spec.whatwg.org/#scheme-start-state) +- [`"scheme"`](https://url.spec.whatwg.org/#scheme-state) +- [`"no scheme"`](https://url.spec.whatwg.org/#no-scheme-state) +- [`"special relative or authority"`](https://url.spec.whatwg.org/#special-relative-or-authority-state) +- [`"path or authority"`](https://url.spec.whatwg.org/#path-or-authority-state) +- [`"relative"`](https://url.spec.whatwg.org/#relative-state) +- [`"relative slash"`](https://url.spec.whatwg.org/#relative-slash-state) +- [`"special authority slashes"`](https://url.spec.whatwg.org/#special-authority-slashes-state) +- [`"special authority ignore slashes"`](https://url.spec.whatwg.org/#special-authority-ignore-slashes-state) +- [`"authority"`](https://url.spec.whatwg.org/#authority-state) +- [`"host"`](https://url.spec.whatwg.org/#host-state) +- [`"hostname"`](https://url.spec.whatwg.org/#hostname-state) +- [`"port"`](https://url.spec.whatwg.org/#port-state) +- [`"file"`](https://url.spec.whatwg.org/#file-state) +- [`"file slash"`](https://url.spec.whatwg.org/#file-slash-state) +- [`"file host"`](https://url.spec.whatwg.org/#file-host-state) +- [`"path start"`](https://url.spec.whatwg.org/#path-start-state) +- [`"path"`](https://url.spec.whatwg.org/#path-state) +- [`"opaque path"`](https://url.spec.whatwg.org/#cannot-be-a-base-url-path-state) +- [`"query"`](https://url.spec.whatwg.org/#query-state) +- [`"fragment"`](https://url.spec.whatwg.org/#fragment-state) + +The URL record type has the following API: + +- [`scheme`](https://url.spec.whatwg.org/#concept-url-scheme) +- [`username`](https://url.spec.whatwg.org/#concept-url-username) +- [`password`](https://url.spec.whatwg.org/#concept-url-password) +- [`host`](https://url.spec.whatwg.org/#concept-url-host) +- [`port`](https://url.spec.whatwg.org/#concept-url-port) +- [`path`](https://url.spec.whatwg.org/#concept-url-path) (as an array of strings, or a string) +- [`query`](https://url.spec.whatwg.org/#concept-url-query) +- [`fragment`](https://url.spec.whatwg.org/#concept-url-fragment) + +These properties should be treated with care, as in general changing them will cause the URL record to be in an inconsistent state until the appropriate invocation of `basicURLParse` is used to fix it up. You can see examples of this in the URL Standard, where there are many step sequences like "4. Set context object’s url’s fragment to the empty string. 5. Basic URL parse _input_ with context object’s url as _url_ and fragment state as _state override_." In between those two steps, a URL record is in an unusable state. + +The return value of "failure" in the spec is represented by `null`. That is, functions like `parseURL` and `basicURLParse` can return _either_ a URL record _or_ `null`. + +### `whatwg-url/webidl2js-wrapper` module + +This module exports the `URL` and `URLSearchParams` [interface wrappers API](https://github.com/jsdom/webidl2js#for-interfaces) generated by [webidl2js](https://github.com/jsdom/webidl2js). + +## Development instructions + +First, install [Node.js](https://nodejs.org/). Then, fetch the dependencies of whatwg-url, by running from this directory: + + npm install + +To run tests: + + npm test + +To generate a coverage report: + + npm run coverage + +To build and run the live viewer: + + npm run prepare + npm run build-live-viewer + +Serve the contents of the `live-viewer` directory using any web server. + +## Supporting whatwg-url + +The jsdom project (including whatwg-url) is a community-driven project maintained by a team of [volunteers](https://github.com/orgs/jsdom/people). You could support us by: + +- [Getting professional support for whatwg-url](https://tidelift.com/subscription/pkg/npm-whatwg-url?utm_source=npm-whatwg-url&utm_medium=referral&utm_campaign=readme) as part of a Tidelift subscription. Tidelift helps making open source sustainable for us while giving teams assurances for maintenance, licensing, and security. +- Contributing directly to the project. diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/index.js b/week-3/04-course-app-hard/node_modules/whatwg-url/index.js new file mode 100644 index 000000000..c470e48e4 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/index.js @@ -0,0 +1,27 @@ +"use strict"; + +const { URL, URLSearchParams } = require("./webidl2js-wrapper"); +const urlStateMachine = require("./lib/url-state-machine"); +const percentEncoding = require("./lib/percent-encoding"); + +const sharedGlobalObject = { Array, Object, Promise, String, TypeError }; +URL.install(sharedGlobalObject, ["Window"]); +URLSearchParams.install(sharedGlobalObject, ["Window"]); + +exports.URL = sharedGlobalObject.URL; +exports.URLSearchParams = sharedGlobalObject.URLSearchParams; + +exports.parseURL = urlStateMachine.parseURL; +exports.basicURLParse = urlStateMachine.basicURLParse; +exports.serializeURL = urlStateMachine.serializeURL; +exports.serializePath = urlStateMachine.serializePath; +exports.serializeHost = urlStateMachine.serializeHost; +exports.serializeInteger = urlStateMachine.serializeInteger; +exports.serializeURLOrigin = urlStateMachine.serializeURLOrigin; +exports.setTheUsername = urlStateMachine.setTheUsername; +exports.setThePassword = urlStateMachine.setThePassword; +exports.cannotHaveAUsernamePasswordPort = urlStateMachine.cannotHaveAUsernamePasswordPort; +exports.hasAnOpaquePath = urlStateMachine.hasAnOpaquePath; + +exports.percentDecodeString = percentEncoding.percentDecodeString; +exports.percentDecodeBytes = percentEncoding.percentDecodeBytes; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/Function.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/Function.js new file mode 100644 index 000000000..ea8712fd7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/Function.js @@ -0,0 +1,42 @@ +"use strict"; + +const conversions = require("webidl-conversions"); +const utils = require("./utils.js"); + +exports.convert = (globalObject, value, { context = "The provided value" } = {}) => { + if (typeof value !== "function") { + throw new globalObject.TypeError(context + " is not a function"); + } + + function invokeTheCallbackFunction(...args) { + const thisArg = utils.tryWrapperForImpl(this); + let callResult; + + for (let i = 0; i < args.length; i++) { + args[i] = utils.tryWrapperForImpl(args[i]); + } + + callResult = Reflect.apply(value, thisArg, args); + + callResult = conversions["any"](callResult, { context: context, globals: globalObject }); + + return callResult; + } + + invokeTheCallbackFunction.construct = (...args) => { + for (let i = 0; i < args.length; i++) { + args[i] = utils.tryWrapperForImpl(args[i]); + } + + let callResult = Reflect.construct(value, args); + + callResult = conversions["any"](callResult, { context: context, globals: globalObject }); + + return callResult; + }; + + invokeTheCallbackFunction[utils.wrapperSymbol] = value; + invokeTheCallbackFunction.objectReference = value; + + return invokeTheCallbackFunction; +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URL-impl.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URL-impl.js new file mode 100644 index 000000000..eb66cae56 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URL-impl.js @@ -0,0 +1,246 @@ +"use strict"; +const usm = require("./url-state-machine"); +const urlencoded = require("./urlencoded"); +const URLSearchParams = require("./URLSearchParams"); + +exports.implementation = class URLImpl { + // Unlike the spec, we duplicate some code between the constructor and canParse, because we want to give useful error + // messages in the constructor that distinguish between the different causes of failure. + constructor(globalObject, constructorArgs) { + const url = constructorArgs[0]; + const base = constructorArgs[1]; + + let parsedBase = null; + if (base !== undefined) { + parsedBase = usm.basicURLParse(base); + if (parsedBase === null) { + throw new TypeError(`Invalid base URL: ${base}`); + } + } + + const parsedURL = usm.basicURLParse(url, { baseURL: parsedBase }); + if (parsedURL === null) { + throw new TypeError(`Invalid URL: ${url}`); + } + + const query = parsedURL.query !== null ? parsedURL.query : ""; + + this._url = parsedURL; + + // We cannot invoke the "new URLSearchParams object" algorithm without going through the constructor, which strips + // question mark by default. Therefore the doNotStripQMark hack is used. + this._query = URLSearchParams.createImpl(globalObject, [query], { doNotStripQMark: true }); + this._query._url = this; + } + + static canParse(url, base) { + let parsedBase = null; + if (base !== undefined) { + parsedBase = usm.basicURLParse(base); + if (parsedBase === null) { + return false; + } + } + + const parsedURL = usm.basicURLParse(url, { baseURL: parsedBase }); + if (parsedURL === null) { + return false; + } + + return true; + } + + get href() { + return usm.serializeURL(this._url); + } + + set href(v) { + const parsedURL = usm.basicURLParse(v); + if (parsedURL === null) { + throw new TypeError(`Invalid URL: ${v}`); + } + + this._url = parsedURL; + + this._query._list.splice(0); + const { query } = parsedURL; + if (query !== null) { + this._query._list = urlencoded.parseUrlencodedString(query); + } + } + + get origin() { + return usm.serializeURLOrigin(this._url); + } + + get protocol() { + return `${this._url.scheme}:`; + } + + set protocol(v) { + usm.basicURLParse(`${v}:`, { url: this._url, stateOverride: "scheme start" }); + } + + get username() { + return this._url.username; + } + + set username(v) { + if (usm.cannotHaveAUsernamePasswordPort(this._url)) { + return; + } + + usm.setTheUsername(this._url, v); + } + + get password() { + return this._url.password; + } + + set password(v) { + if (usm.cannotHaveAUsernamePasswordPort(this._url)) { + return; + } + + usm.setThePassword(this._url, v); + } + + get host() { + const url = this._url; + + if (url.host === null) { + return ""; + } + + if (url.port === null) { + return usm.serializeHost(url.host); + } + + return `${usm.serializeHost(url.host)}:${usm.serializeInteger(url.port)}`; + } + + set host(v) { + if (usm.hasAnOpaquePath(this._url)) { + return; + } + + usm.basicURLParse(v, { url: this._url, stateOverride: "host" }); + } + + get hostname() { + if (this._url.host === null) { + return ""; + } + + return usm.serializeHost(this._url.host); + } + + set hostname(v) { + if (usm.hasAnOpaquePath(this._url)) { + return; + } + + usm.basicURLParse(v, { url: this._url, stateOverride: "hostname" }); + } + + get port() { + if (this._url.port === null) { + return ""; + } + + return usm.serializeInteger(this._url.port); + } + + set port(v) { + if (usm.cannotHaveAUsernamePasswordPort(this._url)) { + return; + } + + if (v === "") { + this._url.port = null; + } else { + usm.basicURLParse(v, { url: this._url, stateOverride: "port" }); + } + } + + get pathname() { + return usm.serializePath(this._url); + } + + set pathname(v) { + if (usm.hasAnOpaquePath(this._url)) { + return; + } + + this._url.path = []; + usm.basicURLParse(v, { url: this._url, stateOverride: "path start" }); + } + + get search() { + if (this._url.query === null || this._url.query === "") { + return ""; + } + + return `?${this._url.query}`; + } + + set search(v) { + const url = this._url; + + if (v === "") { + url.query = null; + this._query._list = []; + this._potentiallyStripTrailingSpacesFromAnOpaquePath(); + return; + } + + const input = v[0] === "?" ? v.substring(1) : v; + url.query = ""; + usm.basicURLParse(input, { url, stateOverride: "query" }); + this._query._list = urlencoded.parseUrlencodedString(input); + } + + get searchParams() { + return this._query; + } + + get hash() { + if (this._url.fragment === null || this._url.fragment === "") { + return ""; + } + + return `#${this._url.fragment}`; + } + + set hash(v) { + if (v === "") { + this._url.fragment = null; + this._potentiallyStripTrailingSpacesFromAnOpaquePath(); + return; + } + + const input = v[0] === "#" ? v.substring(1) : v; + this._url.fragment = ""; + usm.basicURLParse(input, { url: this._url, stateOverride: "fragment" }); + } + + toJSON() { + return this.href; + } + + _potentiallyStripTrailingSpacesFromAnOpaquePath() { + if (!usm.hasAnOpaquePath(this._url)) { + return; + } + + if (this._url.fragment !== null) { + return; + } + + if (this._url.query !== null) { + return; + } + + this._url.path = this._url.path.replace(/\u0020+$/u, ""); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URL.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URL.js new file mode 100644 index 000000000..ea5e6166b --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URL.js @@ -0,0 +1,471 @@ +"use strict"; + +const conversions = require("webidl-conversions"); +const utils = require("./utils.js"); + +const implSymbol = utils.implSymbol; +const ctorRegistrySymbol = utils.ctorRegistrySymbol; + +const interfaceName = "URL"; + +exports.is = value => { + return utils.isObject(value) && utils.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation; +}; +exports.isImpl = value => { + return utils.isObject(value) && value instanceof Impl.implementation; +}; +exports.convert = (globalObject, value, { context = "The provided value" } = {}) => { + if (exports.is(value)) { + return utils.implForWrapper(value); + } + throw new globalObject.TypeError(`${context} is not of type 'URL'.`); +}; + +function makeWrapper(globalObject, newTarget) { + let proto; + if (newTarget !== undefined) { + proto = newTarget.prototype; + } + + if (!utils.isObject(proto)) { + proto = globalObject[ctorRegistrySymbol]["URL"].prototype; + } + + return Object.create(proto); +} + +exports.create = (globalObject, constructorArgs, privateData) => { + const wrapper = makeWrapper(globalObject); + return exports.setup(wrapper, globalObject, constructorArgs, privateData); +}; + +exports.createImpl = (globalObject, constructorArgs, privateData) => { + const wrapper = exports.create(globalObject, constructorArgs, privateData); + return utils.implForWrapper(wrapper); +}; + +exports._internalSetup = (wrapper, globalObject) => {}; + +exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => { + privateData.wrapper = wrapper; + + exports._internalSetup(wrapper, globalObject); + Object.defineProperty(wrapper, implSymbol, { + value: new Impl.implementation(globalObject, constructorArgs, privateData), + configurable: true + }); + + wrapper[implSymbol][utils.wrapperSymbol] = wrapper; + if (Impl.init) { + Impl.init(wrapper[implSymbol]); + } + return wrapper; +}; + +exports.new = (globalObject, newTarget) => { + const wrapper = makeWrapper(globalObject, newTarget); + + exports._internalSetup(wrapper, globalObject); + Object.defineProperty(wrapper, implSymbol, { + value: Object.create(Impl.implementation.prototype), + configurable: true + }); + + wrapper[implSymbol][utils.wrapperSymbol] = wrapper; + if (Impl.init) { + Impl.init(wrapper[implSymbol]); + } + return wrapper[implSymbol]; +}; + +const exposed = new Set(["Window", "Worker"]); + +exports.install = (globalObject, globalNames) => { + if (!globalNames.some(globalName => exposed.has(globalName))) { + return; + } + + const ctorRegistry = utils.initCtorRegistry(globalObject); + class URL { + constructor(url) { + if (arguments.length < 1) { + throw new globalObject.TypeError( + `Failed to construct 'URL': 1 argument required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to construct 'URL': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + { + let curArg = arguments[1]; + if (curArg !== undefined) { + curArg = conversions["USVString"](curArg, { + context: "Failed to construct 'URL': parameter 2", + globals: globalObject + }); + } + args.push(curArg); + } + return exports.setup(Object.create(new.target.prototype), globalObject, args); + } + + toJSON() { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'toJSON' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol].toJSON(); + } + + get href() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get href' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["href"]; + } + + set href(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set href' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'href' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["href"] = V; + } + + toString() { + const esValue = this; + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'toString' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["href"]; + } + + get origin() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get origin' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["origin"]; + } + + get protocol() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get protocol' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["protocol"]; + } + + set protocol(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set protocol' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'protocol' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["protocol"] = V; + } + + get username() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get username' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["username"]; + } + + set username(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set username' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'username' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["username"] = V; + } + + get password() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get password' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["password"]; + } + + set password(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set password' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'password' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["password"] = V; + } + + get host() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get host' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["host"]; + } + + set host(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set host' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'host' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["host"] = V; + } + + get hostname() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get hostname' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["hostname"]; + } + + set hostname(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set hostname' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'hostname' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["hostname"] = V; + } + + get port() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get port' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["port"]; + } + + set port(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set port' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'port' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["port"] = V; + } + + get pathname() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get pathname' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["pathname"]; + } + + set pathname(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set pathname' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'pathname' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["pathname"] = V; + } + + get search() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get search' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["search"]; + } + + set search(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set search' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'search' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["search"] = V; + } + + get searchParams() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get searchParams' called on an object that is not a valid instance of URL."); + } + + return utils.getSameObject(this, "searchParams", () => { + return utils.tryWrapperForImpl(esValue[implSymbol]["searchParams"]); + }); + } + + get hash() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get hash' called on an object that is not a valid instance of URL."); + } + + return esValue[implSymbol]["hash"]; + } + + set hash(V) { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set hash' called on an object that is not a valid instance of URL."); + } + + V = conversions["USVString"](V, { + context: "Failed to set the 'hash' property on 'URL': The provided value", + globals: globalObject + }); + + esValue[implSymbol]["hash"] = V; + } + + static canParse(url) { + if (arguments.length < 1) { + throw new globalObject.TypeError( + `Failed to execute 'canParse' on 'URL': 1 argument required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'canParse' on 'URL': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + { + let curArg = arguments[1]; + if (curArg !== undefined) { + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'canParse' on 'URL': parameter 2", + globals: globalObject + }); + } + args.push(curArg); + } + return Impl.implementation.canParse(...args); + } + } + Object.defineProperties(URL.prototype, { + toJSON: { enumerable: true }, + href: { enumerable: true }, + toString: { enumerable: true }, + origin: { enumerable: true }, + protocol: { enumerable: true }, + username: { enumerable: true }, + password: { enumerable: true }, + host: { enumerable: true }, + hostname: { enumerable: true }, + port: { enumerable: true }, + pathname: { enumerable: true }, + search: { enumerable: true }, + searchParams: { enumerable: true }, + hash: { enumerable: true }, + [Symbol.toStringTag]: { value: "URL", configurable: true } + }); + Object.defineProperties(URL, { canParse: { enumerable: true } }); + ctorRegistry[interfaceName] = URL; + + Object.defineProperty(globalObject, interfaceName, { + configurable: true, + writable: true, + value: URL + }); + + if (globalNames.includes("Window")) { + Object.defineProperty(globalObject, "webkitURL", { + configurable: true, + writable: true, + value: URL + }); + } +}; + +const Impl = require("./URL-impl.js"); diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URLSearchParams-impl.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URLSearchParams-impl.js new file mode 100644 index 000000000..934c4ff14 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URLSearchParams-impl.js @@ -0,0 +1,139 @@ +"use strict"; +const urlencoded = require("./urlencoded"); + +exports.implementation = class URLSearchParamsImpl { + constructor(globalObject, constructorArgs, { doNotStripQMark = false }) { + let init = constructorArgs[0]; + this._list = []; + this._url = null; + + if (!doNotStripQMark && typeof init === "string" && init[0] === "?") { + init = init.slice(1); + } + + if (Array.isArray(init)) { + for (const pair of init) { + if (pair.length !== 2) { + throw new TypeError("Failed to construct 'URLSearchParams': parameter 1 sequence's element does not " + + "contain exactly two elements."); + } + this._list.push([pair[0], pair[1]]); + } + } else if (typeof init === "object" && Object.getPrototypeOf(init) === null) { + for (const name of Object.keys(init)) { + const value = init[name]; + this._list.push([name, value]); + } + } else { + this._list = urlencoded.parseUrlencodedString(init); + } + } + + _updateSteps() { + if (this._url !== null) { + let serializedQuery = urlencoded.serializeUrlencoded(this._list); + if (serializedQuery === "") { + serializedQuery = null; + } + + this._url._url.query = serializedQuery; + + if (serializedQuery === null) { + this._url._potentiallyStripTrailingSpacesFromAnOpaquePath(); + } + } + } + + get size() { + return this._list.length; + } + + append(name, value) { + this._list.push([name, value]); + this._updateSteps(); + } + + delete(name, value) { + let i = 0; + while (i < this._list.length) { + if (this._list[i][0] === name && (value === undefined || this._list[i][1] === value)) { + this._list.splice(i, 1); + } else { + i++; + } + } + this._updateSteps(); + } + + get(name) { + for (const tuple of this._list) { + if (tuple[0] === name) { + return tuple[1]; + } + } + return null; + } + + getAll(name) { + const output = []; + for (const tuple of this._list) { + if (tuple[0] === name) { + output.push(tuple[1]); + } + } + return output; + } + + has(name, value) { + for (const tuple of this._list) { + if (tuple[0] === name && (value === undefined || tuple[1] === value)) { + return true; + } + } + return false; + } + + set(name, value) { + let found = false; + let i = 0; + while (i < this._list.length) { + if (this._list[i][0] === name) { + if (found) { + this._list.splice(i, 1); + } else { + found = true; + this._list[i][1] = value; + i++; + } + } else { + i++; + } + } + if (!found) { + this._list.push([name, value]); + } + this._updateSteps(); + } + + sort() { + this._list.sort((a, b) => { + if (a[0] < b[0]) { + return -1; + } + if (a[0] > b[0]) { + return 1; + } + return 0; + }); + + this._updateSteps(); + } + + [Symbol.iterator]() { + return this._list[Symbol.iterator](); + } + + toString() { + return urlencoded.serializeUrlencoded(this._list); + } +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URLSearchParams.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URLSearchParams.js new file mode 100644 index 000000000..a55587fa7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/URLSearchParams.js @@ -0,0 +1,505 @@ +"use strict"; + +const conversions = require("webidl-conversions"); +const utils = require("./utils.js"); + +const Function = require("./Function.js"); +const newObjectInRealm = utils.newObjectInRealm; +const implSymbol = utils.implSymbol; +const ctorRegistrySymbol = utils.ctorRegistrySymbol; + +const interfaceName = "URLSearchParams"; + +exports.is = value => { + return utils.isObject(value) && utils.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation; +}; +exports.isImpl = value => { + return utils.isObject(value) && value instanceof Impl.implementation; +}; +exports.convert = (globalObject, value, { context = "The provided value" } = {}) => { + if (exports.is(value)) { + return utils.implForWrapper(value); + } + throw new globalObject.TypeError(`${context} is not of type 'URLSearchParams'.`); +}; + +exports.createDefaultIterator = (globalObject, target, kind) => { + const ctorRegistry = globalObject[ctorRegistrySymbol]; + const iteratorPrototype = ctorRegistry["URLSearchParams Iterator"]; + const iterator = Object.create(iteratorPrototype); + Object.defineProperty(iterator, utils.iterInternalSymbol, { + value: { target, kind, index: 0 }, + configurable: true + }); + return iterator; +}; + +function makeWrapper(globalObject, newTarget) { + let proto; + if (newTarget !== undefined) { + proto = newTarget.prototype; + } + + if (!utils.isObject(proto)) { + proto = globalObject[ctorRegistrySymbol]["URLSearchParams"].prototype; + } + + return Object.create(proto); +} + +exports.create = (globalObject, constructorArgs, privateData) => { + const wrapper = makeWrapper(globalObject); + return exports.setup(wrapper, globalObject, constructorArgs, privateData); +}; + +exports.createImpl = (globalObject, constructorArgs, privateData) => { + const wrapper = exports.create(globalObject, constructorArgs, privateData); + return utils.implForWrapper(wrapper); +}; + +exports._internalSetup = (wrapper, globalObject) => {}; + +exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => { + privateData.wrapper = wrapper; + + exports._internalSetup(wrapper, globalObject); + Object.defineProperty(wrapper, implSymbol, { + value: new Impl.implementation(globalObject, constructorArgs, privateData), + configurable: true + }); + + wrapper[implSymbol][utils.wrapperSymbol] = wrapper; + if (Impl.init) { + Impl.init(wrapper[implSymbol]); + } + return wrapper; +}; + +exports.new = (globalObject, newTarget) => { + const wrapper = makeWrapper(globalObject, newTarget); + + exports._internalSetup(wrapper, globalObject); + Object.defineProperty(wrapper, implSymbol, { + value: Object.create(Impl.implementation.prototype), + configurable: true + }); + + wrapper[implSymbol][utils.wrapperSymbol] = wrapper; + if (Impl.init) { + Impl.init(wrapper[implSymbol]); + } + return wrapper[implSymbol]; +}; + +const exposed = new Set(["Window", "Worker"]); + +exports.install = (globalObject, globalNames) => { + if (!globalNames.some(globalName => exposed.has(globalName))) { + return; + } + + const ctorRegistry = utils.initCtorRegistry(globalObject); + class URLSearchParams { + constructor() { + const args = []; + { + let curArg = arguments[0]; + if (curArg !== undefined) { + if (utils.isObject(curArg)) { + if (curArg[Symbol.iterator] !== undefined) { + if (!utils.isObject(curArg)) { + throw new globalObject.TypeError( + "Failed to construct 'URLSearchParams': parameter 1" + " sequence" + " is not an iterable object." + ); + } else { + const V = []; + const tmp = curArg; + for (let nextItem of tmp) { + if (!utils.isObject(nextItem)) { + throw new globalObject.TypeError( + "Failed to construct 'URLSearchParams': parameter 1" + + " sequence" + + "'s element" + + " is not an iterable object." + ); + } else { + const V = []; + const tmp = nextItem; + for (let nextItem of tmp) { + nextItem = conversions["USVString"](nextItem, { + context: + "Failed to construct 'URLSearchParams': parameter 1" + + " sequence" + + "'s element" + + "'s element", + globals: globalObject + }); + + V.push(nextItem); + } + nextItem = V; + } + + V.push(nextItem); + } + curArg = V; + } + } else { + if (!utils.isObject(curArg)) { + throw new globalObject.TypeError( + "Failed to construct 'URLSearchParams': parameter 1" + " record" + " is not an object." + ); + } else { + const result = Object.create(null); + for (const key of Reflect.ownKeys(curArg)) { + const desc = Object.getOwnPropertyDescriptor(curArg, key); + if (desc && desc.enumerable) { + let typedKey = key; + + typedKey = conversions["USVString"](typedKey, { + context: "Failed to construct 'URLSearchParams': parameter 1" + " record" + "'s key", + globals: globalObject + }); + + let typedValue = curArg[key]; + + typedValue = conversions["USVString"](typedValue, { + context: "Failed to construct 'URLSearchParams': parameter 1" + " record" + "'s value", + globals: globalObject + }); + + result[typedKey] = typedValue; + } + } + curArg = result; + } + } + } else { + curArg = conversions["USVString"](curArg, { + context: "Failed to construct 'URLSearchParams': parameter 1", + globals: globalObject + }); + } + } else { + curArg = ""; + } + args.push(curArg); + } + return exports.setup(Object.create(new.target.prototype), globalObject, args); + } + + append(name, value) { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError( + "'append' called on an object that is not a valid instance of URLSearchParams." + ); + } + + if (arguments.length < 2) { + throw new globalObject.TypeError( + `Failed to execute 'append' on 'URLSearchParams': 2 arguments required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'append' on 'URLSearchParams': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + { + let curArg = arguments[1]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'append' on 'URLSearchParams': parameter 2", + globals: globalObject + }); + args.push(curArg); + } + return utils.tryWrapperForImpl(esValue[implSymbol].append(...args)); + } + + delete(name) { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError( + "'delete' called on an object that is not a valid instance of URLSearchParams." + ); + } + + if (arguments.length < 1) { + throw new globalObject.TypeError( + `Failed to execute 'delete' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'delete' on 'URLSearchParams': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + { + let curArg = arguments[1]; + if (curArg !== undefined) { + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'delete' on 'URLSearchParams': parameter 2", + globals: globalObject + }); + } + args.push(curArg); + } + return utils.tryWrapperForImpl(esValue[implSymbol].delete(...args)); + } + + get(name) { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'get' called on an object that is not a valid instance of URLSearchParams."); + } + + if (arguments.length < 1) { + throw new globalObject.TypeError( + `Failed to execute 'get' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'get' on 'URLSearchParams': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + return esValue[implSymbol].get(...args); + } + + getAll(name) { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError( + "'getAll' called on an object that is not a valid instance of URLSearchParams." + ); + } + + if (arguments.length < 1) { + throw new globalObject.TypeError( + `Failed to execute 'getAll' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'getAll' on 'URLSearchParams': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + return utils.tryWrapperForImpl(esValue[implSymbol].getAll(...args)); + } + + has(name) { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'has' called on an object that is not a valid instance of URLSearchParams."); + } + + if (arguments.length < 1) { + throw new globalObject.TypeError( + `Failed to execute 'has' on 'URLSearchParams': 1 argument required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'has' on 'URLSearchParams': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + { + let curArg = arguments[1]; + if (curArg !== undefined) { + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'has' on 'URLSearchParams': parameter 2", + globals: globalObject + }); + } + args.push(curArg); + } + return esValue[implSymbol].has(...args); + } + + set(name, value) { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'set' called on an object that is not a valid instance of URLSearchParams."); + } + + if (arguments.length < 2) { + throw new globalObject.TypeError( + `Failed to execute 'set' on 'URLSearchParams': 2 arguments required, but only ${arguments.length} present.` + ); + } + const args = []; + { + let curArg = arguments[0]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'set' on 'URLSearchParams': parameter 1", + globals: globalObject + }); + args.push(curArg); + } + { + let curArg = arguments[1]; + curArg = conversions["USVString"](curArg, { + context: "Failed to execute 'set' on 'URLSearchParams': parameter 2", + globals: globalObject + }); + args.push(curArg); + } + return utils.tryWrapperForImpl(esValue[implSymbol].set(...args)); + } + + sort() { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError("'sort' called on an object that is not a valid instance of URLSearchParams."); + } + + return utils.tryWrapperForImpl(esValue[implSymbol].sort()); + } + + toString() { + const esValue = this !== null && this !== undefined ? this : globalObject; + if (!exports.is(esValue)) { + throw new globalObject.TypeError( + "'toString' called on an object that is not a valid instance of URLSearchParams." + ); + } + + return esValue[implSymbol].toString(); + } + + keys() { + if (!exports.is(this)) { + throw new globalObject.TypeError("'keys' called on an object that is not a valid instance of URLSearchParams."); + } + return exports.createDefaultIterator(globalObject, this, "key"); + } + + values() { + if (!exports.is(this)) { + throw new globalObject.TypeError( + "'values' called on an object that is not a valid instance of URLSearchParams." + ); + } + return exports.createDefaultIterator(globalObject, this, "value"); + } + + entries() { + if (!exports.is(this)) { + throw new globalObject.TypeError( + "'entries' called on an object that is not a valid instance of URLSearchParams." + ); + } + return exports.createDefaultIterator(globalObject, this, "key+value"); + } + + forEach(callback) { + if (!exports.is(this)) { + throw new globalObject.TypeError( + "'forEach' called on an object that is not a valid instance of URLSearchParams." + ); + } + if (arguments.length < 1) { + throw new globalObject.TypeError( + "Failed to execute 'forEach' on 'iterable': 1 argument required, but only 0 present." + ); + } + callback = Function.convert(globalObject, callback, { + context: "Failed to execute 'forEach' on 'iterable': The callback provided as parameter 1" + }); + const thisArg = arguments[1]; + let pairs = Array.from(this[implSymbol]); + let i = 0; + while (i < pairs.length) { + const [key, value] = pairs[i].map(utils.tryWrapperForImpl); + callback.call(thisArg, value, key, this); + pairs = Array.from(this[implSymbol]); + i++; + } + } + + get size() { + const esValue = this !== null && this !== undefined ? this : globalObject; + + if (!exports.is(esValue)) { + throw new globalObject.TypeError( + "'get size' called on an object that is not a valid instance of URLSearchParams." + ); + } + + return esValue[implSymbol]["size"]; + } + } + Object.defineProperties(URLSearchParams.prototype, { + append: { enumerable: true }, + delete: { enumerable: true }, + get: { enumerable: true }, + getAll: { enumerable: true }, + has: { enumerable: true }, + set: { enumerable: true }, + sort: { enumerable: true }, + toString: { enumerable: true }, + keys: { enumerable: true }, + values: { enumerable: true }, + entries: { enumerable: true }, + forEach: { enumerable: true }, + size: { enumerable: true }, + [Symbol.toStringTag]: { value: "URLSearchParams", configurable: true }, + [Symbol.iterator]: { value: URLSearchParams.prototype.entries, configurable: true, writable: true } + }); + ctorRegistry[interfaceName] = URLSearchParams; + + ctorRegistry["URLSearchParams Iterator"] = Object.create(ctorRegistry["%IteratorPrototype%"], { + [Symbol.toStringTag]: { + configurable: true, + value: "URLSearchParams Iterator" + } + }); + utils.define(ctorRegistry["URLSearchParams Iterator"], { + next() { + const internal = this && this[utils.iterInternalSymbol]; + if (!internal) { + throw new globalObject.TypeError("next() called on a value that is not a URLSearchParams iterator object"); + } + + const { target, kind, index } = internal; + const values = Array.from(target[implSymbol]); + const len = values.length; + if (index >= len) { + return newObjectInRealm(globalObject, { value: undefined, done: true }); + } + + const pair = values[index]; + internal.index = index + 1; + return newObjectInRealm(globalObject, utils.iteratorResult(pair.map(utils.tryWrapperForImpl), kind)); + } + }); + + Object.defineProperty(globalObject, interfaceName, { + configurable: true, + writable: true, + value: URLSearchParams + }); +}; + +const Impl = require("./URLSearchParams-impl.js"); diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/VoidFunction.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/VoidFunction.js new file mode 100644 index 000000000..9a00672a7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/VoidFunction.js @@ -0,0 +1,26 @@ +"use strict"; + +const conversions = require("webidl-conversions"); +const utils = require("./utils.js"); + +exports.convert = (globalObject, value, { context = "The provided value" } = {}) => { + if (typeof value !== "function") { + throw new globalObject.TypeError(context + " is not a function"); + } + + function invokeTheCallbackFunction() { + const thisArg = utils.tryWrapperForImpl(this); + let callResult; + + callResult = Reflect.apply(value, thisArg, []); + } + + invokeTheCallbackFunction.construct = () => { + let callResult = Reflect.construct(value, []); + }; + + invokeTheCallbackFunction[utils.wrapperSymbol] = value; + invokeTheCallbackFunction.objectReference = value; + + return invokeTheCallbackFunction; +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/encoding.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/encoding.js new file mode 100644 index 000000000..cb66b8f10 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/encoding.js @@ -0,0 +1,16 @@ +"use strict"; +const utf8Encoder = new TextEncoder(); +const utf8Decoder = new TextDecoder("utf-8", { ignoreBOM: true }); + +function utf8Encode(string) { + return utf8Encoder.encode(string); +} + +function utf8DecodeWithoutBOM(bytes) { + return utf8Decoder.decode(bytes); +} + +module.exports = { + utf8Encode, + utf8DecodeWithoutBOM +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/infra.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/infra.js new file mode 100644 index 000000000..4a984a3b3 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/infra.js @@ -0,0 +1,26 @@ +"use strict"; + +// Note that we take code points as JS numbers, not JS strings. + +function isASCIIDigit(c) { + return c >= 0x30 && c <= 0x39; +} + +function isASCIIAlpha(c) { + return (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A); +} + +function isASCIIAlphanumeric(c) { + return isASCIIAlpha(c) || isASCIIDigit(c); +} + +function isASCIIHex(c) { + return isASCIIDigit(c) || (c >= 0x41 && c <= 0x46) || (c >= 0x61 && c <= 0x66); +} + +module.exports = { + isASCIIDigit, + isASCIIAlpha, + isASCIIAlphanumeric, + isASCIIHex +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/percent-encoding.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/percent-encoding.js new file mode 100644 index 000000000..f8308673c --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/percent-encoding.js @@ -0,0 +1,142 @@ +"use strict"; +const { isASCIIHex } = require("./infra"); +const { utf8Encode } = require("./encoding"); + +function p(char) { + return char.codePointAt(0); +} + +// https://url.spec.whatwg.org/#percent-encode +function percentEncode(c) { + let hex = c.toString(16).toUpperCase(); + if (hex.length === 1) { + hex = `0${hex}`; + } + + return `%${hex}`; +} + +// https://url.spec.whatwg.org/#percent-decode +function percentDecodeBytes(input) { + const output = new Uint8Array(input.byteLength); + let outputIndex = 0; + for (let i = 0; i < input.byteLength; ++i) { + const byte = input[i]; + if (byte !== 0x25) { + output[outputIndex++] = byte; + } else if (byte === 0x25 && (!isASCIIHex(input[i + 1]) || !isASCIIHex(input[i + 2]))) { + output[outputIndex++] = byte; + } else { + const bytePoint = parseInt(String.fromCodePoint(input[i + 1], input[i + 2]), 16); + output[outputIndex++] = bytePoint; + i += 2; + } + } + + return output.slice(0, outputIndex); +} + +// https://url.spec.whatwg.org/#string-percent-decode +function percentDecodeString(input) { + const bytes = utf8Encode(input); + return percentDecodeBytes(bytes); +} + +// https://url.spec.whatwg.org/#c0-control-percent-encode-set +function isC0ControlPercentEncode(c) { + return c <= 0x1F || c > 0x7E; +} + +// https://url.spec.whatwg.org/#fragment-percent-encode-set +const extraFragmentPercentEncodeSet = new Set([p(" "), p("\""), p("<"), p(">"), p("`")]); +function isFragmentPercentEncode(c) { + return isC0ControlPercentEncode(c) || extraFragmentPercentEncodeSet.has(c); +} + +// https://url.spec.whatwg.org/#query-percent-encode-set +const extraQueryPercentEncodeSet = new Set([p(" "), p("\""), p("#"), p("<"), p(">")]); +function isQueryPercentEncode(c) { + return isC0ControlPercentEncode(c) || extraQueryPercentEncodeSet.has(c); +} + +// https://url.spec.whatwg.org/#special-query-percent-encode-set +function isSpecialQueryPercentEncode(c) { + return isQueryPercentEncode(c) || c === p("'"); +} + +// https://url.spec.whatwg.org/#path-percent-encode-set +const extraPathPercentEncodeSet = new Set([p("?"), p("`"), p("{"), p("}")]); +function isPathPercentEncode(c) { + return isQueryPercentEncode(c) || extraPathPercentEncodeSet.has(c); +} + +// https://url.spec.whatwg.org/#userinfo-percent-encode-set +const extraUserinfoPercentEncodeSet = + new Set([p("/"), p(":"), p(";"), p("="), p("@"), p("["), p("\\"), p("]"), p("^"), p("|")]); +function isUserinfoPercentEncode(c) { + return isPathPercentEncode(c) || extraUserinfoPercentEncodeSet.has(c); +} + +// https://url.spec.whatwg.org/#component-percent-encode-set +const extraComponentPercentEncodeSet = new Set([p("$"), p("%"), p("&"), p("+"), p(",")]); +function isComponentPercentEncode(c) { + return isUserinfoPercentEncode(c) || extraComponentPercentEncodeSet.has(c); +} + +// https://url.spec.whatwg.org/#application-x-www-form-urlencoded-percent-encode-set +const extraURLEncodedPercentEncodeSet = new Set([p("!"), p("'"), p("("), p(")"), p("~")]); +function isURLEncodedPercentEncode(c) { + return isComponentPercentEncode(c) || extraURLEncodedPercentEncodeSet.has(c); +} + +// https://url.spec.whatwg.org/#code-point-percent-encode-after-encoding +// https://url.spec.whatwg.org/#utf-8-percent-encode +// Assuming encoding is always utf-8 allows us to trim one of the logic branches. TODO: support encoding. +// The "-Internal" variant here has code points as JS strings. The external version used by other files has code points +// as JS numbers, like the rest of the codebase. +function utf8PercentEncodeCodePointInternal(codePoint, percentEncodePredicate) { + const bytes = utf8Encode(codePoint); + let output = ""; + for (const byte of bytes) { + // Our percentEncodePredicate operates on bytes, not code points, so this is slightly different from the spec. + if (!percentEncodePredicate(byte)) { + output += String.fromCharCode(byte); + } else { + output += percentEncode(byte); + } + } + + return output; +} + +function utf8PercentEncodeCodePoint(codePoint, percentEncodePredicate) { + return utf8PercentEncodeCodePointInternal(String.fromCodePoint(codePoint), percentEncodePredicate); +} + +// https://url.spec.whatwg.org/#string-percent-encode-after-encoding +// https://url.spec.whatwg.org/#string-utf-8-percent-encode +function utf8PercentEncodeString(input, percentEncodePredicate, spaceAsPlus = false) { + let output = ""; + for (const codePoint of input) { + if (spaceAsPlus && codePoint === " ") { + output += "+"; + } else { + output += utf8PercentEncodeCodePointInternal(codePoint, percentEncodePredicate); + } + } + return output; +} + +module.exports = { + isC0ControlPercentEncode, + isFragmentPercentEncode, + isQueryPercentEncode, + isSpecialQueryPercentEncode, + isPathPercentEncode, + isUserinfoPercentEncode, + isURLEncodedPercentEncode, + percentDecodeString, + percentDecodeBytes, + utf8PercentEncodeString, + utf8PercentEncodeCodePoint +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/url-state-machine.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/url-state-machine.js new file mode 100644 index 000000000..990339214 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/url-state-machine.js @@ -0,0 +1,1247 @@ +"use strict"; +const tr46 = require("tr46"); + +const infra = require("./infra"); +const { utf8DecodeWithoutBOM } = require("./encoding"); +const { percentDecodeString, utf8PercentEncodeCodePoint, utf8PercentEncodeString, isC0ControlPercentEncode, + isFragmentPercentEncode, isQueryPercentEncode, isSpecialQueryPercentEncode, isPathPercentEncode, + isUserinfoPercentEncode } = require("./percent-encoding"); + +function p(char) { + return char.codePointAt(0); +} + +const specialSchemes = { + ftp: 21, + file: null, + http: 80, + https: 443, + ws: 80, + wss: 443 +}; + +const failure = Symbol("failure"); + +function countSymbols(str) { + return [...str].length; +} + +function at(input, idx) { + const c = input[idx]; + return isNaN(c) ? undefined : String.fromCodePoint(c); +} + +function isSingleDot(buffer) { + return buffer === "." || buffer.toLowerCase() === "%2e"; +} + +function isDoubleDot(buffer) { + buffer = buffer.toLowerCase(); + return buffer === ".." || buffer === "%2e." || buffer === ".%2e" || buffer === "%2e%2e"; +} + +function isWindowsDriveLetterCodePoints(cp1, cp2) { + return infra.isASCIIAlpha(cp1) && (cp2 === p(":") || cp2 === p("|")); +} + +function isWindowsDriveLetterString(string) { + return string.length === 2 && infra.isASCIIAlpha(string.codePointAt(0)) && (string[1] === ":" || string[1] === "|"); +} + +function isNormalizedWindowsDriveLetterString(string) { + return string.length === 2 && infra.isASCIIAlpha(string.codePointAt(0)) && string[1] === ":"; +} + +function containsForbiddenHostCodePoint(string) { + return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|\/|:|<|>|\?|@|\[|\\|\]|\^|\|/u) !== -1; +} + +function containsForbiddenDomainCodePoint(string) { + return containsForbiddenHostCodePoint(string) || string.search(/[\u0000-\u001F]|%|\u007F/u) !== -1; +} + +function isSpecialScheme(scheme) { + return specialSchemes[scheme] !== undefined; +} + +function isSpecial(url) { + return isSpecialScheme(url.scheme); +} + +function isNotSpecial(url) { + return !isSpecialScheme(url.scheme); +} + +function defaultPort(scheme) { + return specialSchemes[scheme]; +} + +function parseIPv4Number(input) { + if (input === "") { + return failure; + } + + let R = 10; + + if (input.length >= 2 && input.charAt(0) === "0" && input.charAt(1).toLowerCase() === "x") { + input = input.substring(2); + R = 16; + } else if (input.length >= 2 && input.charAt(0) === "0") { + input = input.substring(1); + R = 8; + } + + if (input === "") { + return 0; + } + + let regex = /[^0-7]/u; + if (R === 10) { + regex = /[^0-9]/u; + } + if (R === 16) { + regex = /[^0-9A-Fa-f]/u; + } + + if (regex.test(input)) { + return failure; + } + + return parseInt(input, R); +} + +function parseIPv4(input) { + const parts = input.split("."); + if (parts[parts.length - 1] === "") { + if (parts.length > 1) { + parts.pop(); + } + } + + if (parts.length > 4) { + return failure; + } + + const numbers = []; + for (const part of parts) { + const n = parseIPv4Number(part); + if (n === failure) { + return failure; + } + + numbers.push(n); + } + + for (let i = 0; i < numbers.length - 1; ++i) { + if (numbers[i] > 255) { + return failure; + } + } + if (numbers[numbers.length - 1] >= 256 ** (5 - numbers.length)) { + return failure; + } + + let ipv4 = numbers.pop(); + let counter = 0; + + for (const n of numbers) { + ipv4 += n * 256 ** (3 - counter); + ++counter; + } + + return ipv4; +} + +function serializeIPv4(address) { + let output = ""; + let n = address; + + for (let i = 1; i <= 4; ++i) { + output = String(n % 256) + output; + if (i !== 4) { + output = `.${output}`; + } + n = Math.floor(n / 256); + } + + return output; +} + +function parseIPv6(input) { + const address = [0, 0, 0, 0, 0, 0, 0, 0]; + let pieceIndex = 0; + let compress = null; + let pointer = 0; + + input = Array.from(input, c => c.codePointAt(0)); + + if (input[pointer] === p(":")) { + if (input[pointer + 1] !== p(":")) { + return failure; + } + + pointer += 2; + ++pieceIndex; + compress = pieceIndex; + } + + while (pointer < input.length) { + if (pieceIndex === 8) { + return failure; + } + + if (input[pointer] === p(":")) { + if (compress !== null) { + return failure; + } + ++pointer; + ++pieceIndex; + compress = pieceIndex; + continue; + } + + let value = 0; + let length = 0; + + while (length < 4 && infra.isASCIIHex(input[pointer])) { + value = value * 0x10 + parseInt(at(input, pointer), 16); + ++pointer; + ++length; + } + + if (input[pointer] === p(".")) { + if (length === 0) { + return failure; + } + + pointer -= length; + + if (pieceIndex > 6) { + return failure; + } + + let numbersSeen = 0; + + while (input[pointer] !== undefined) { + let ipv4Piece = null; + + if (numbersSeen > 0) { + if (input[pointer] === p(".") && numbersSeen < 4) { + ++pointer; + } else { + return failure; + } + } + + if (!infra.isASCIIDigit(input[pointer])) { + return failure; + } + + while (infra.isASCIIDigit(input[pointer])) { + const number = parseInt(at(input, pointer)); + if (ipv4Piece === null) { + ipv4Piece = number; + } else if (ipv4Piece === 0) { + return failure; + } else { + ipv4Piece = ipv4Piece * 10 + number; + } + if (ipv4Piece > 255) { + return failure; + } + ++pointer; + } + + address[pieceIndex] = address[pieceIndex] * 0x100 + ipv4Piece; + + ++numbersSeen; + + if (numbersSeen === 2 || numbersSeen === 4) { + ++pieceIndex; + } + } + + if (numbersSeen !== 4) { + return failure; + } + + break; + } else if (input[pointer] === p(":")) { + ++pointer; + if (input[pointer] === undefined) { + return failure; + } + } else if (input[pointer] !== undefined) { + return failure; + } + + address[pieceIndex] = value; + ++pieceIndex; + } + + if (compress !== null) { + let swaps = pieceIndex - compress; + pieceIndex = 7; + while (pieceIndex !== 0 && swaps > 0) { + const temp = address[compress + swaps - 1]; + address[compress + swaps - 1] = address[pieceIndex]; + address[pieceIndex] = temp; + --pieceIndex; + --swaps; + } + } else if (compress === null && pieceIndex !== 8) { + return failure; + } + + return address; +} + +function serializeIPv6(address) { + let output = ""; + const compress = findLongestZeroSequence(address); + let ignore0 = false; + + for (let pieceIndex = 0; pieceIndex <= 7; ++pieceIndex) { + if (ignore0 && address[pieceIndex] === 0) { + continue; + } else if (ignore0) { + ignore0 = false; + } + + if (compress === pieceIndex) { + const separator = pieceIndex === 0 ? "::" : ":"; + output += separator; + ignore0 = true; + continue; + } + + output += address[pieceIndex].toString(16); + + if (pieceIndex !== 7) { + output += ":"; + } + } + + return output; +} + +function parseHost(input, isNotSpecialArg = false) { + if (input[0] === "[") { + if (input[input.length - 1] !== "]") { + return failure; + } + + return parseIPv6(input.substring(1, input.length - 1)); + } + + if (isNotSpecialArg) { + return parseOpaqueHost(input); + } + + const domain = utf8DecodeWithoutBOM(percentDecodeString(input)); + const asciiDomain = domainToASCII(domain); + if (asciiDomain === failure) { + return failure; + } + + if (containsForbiddenDomainCodePoint(asciiDomain)) { + return failure; + } + + if (endsInANumber(asciiDomain)) { + return parseIPv4(asciiDomain); + } + + return asciiDomain; +} + +function endsInANumber(input) { + const parts = input.split("."); + if (parts[parts.length - 1] === "") { + if (parts.length === 1) { + return false; + } + parts.pop(); + } + + const last = parts[parts.length - 1]; + if (parseIPv4Number(last) !== failure) { + return true; + } + + if (/^[0-9]+$/u.test(last)) { + return true; + } + + return false; +} + +function parseOpaqueHost(input) { + if (containsForbiddenHostCodePoint(input)) { + return failure; + } + + return utf8PercentEncodeString(input, isC0ControlPercentEncode); +} + +function findLongestZeroSequence(arr) { + let maxIdx = null; + let maxLen = 1; // only find elements > 1 + let currStart = null; + let currLen = 0; + + for (let i = 0; i < arr.length; ++i) { + if (arr[i] !== 0) { + if (currLen > maxLen) { + maxIdx = currStart; + maxLen = currLen; + } + + currStart = null; + currLen = 0; + } else { + if (currStart === null) { + currStart = i; + } + ++currLen; + } + } + + // if trailing zeros + if (currLen > maxLen) { + return currStart; + } + + return maxIdx; +} + +function serializeHost(host) { + if (typeof host === "number") { + return serializeIPv4(host); + } + + // IPv6 serializer + if (host instanceof Array) { + return `[${serializeIPv6(host)}]`; + } + + return host; +} + +function domainToASCII(domain, beStrict = false) { + const result = tr46.toASCII(domain, { + checkBidi: true, + checkHyphens: false, + checkJoiners: true, + useSTD3ASCIIRules: beStrict, + verifyDNSLength: beStrict + }); + if (result === null || result === "") { + return failure; + } + return result; +} + +function trimControlChars(url) { + return url.replace(/^[\u0000-\u001F\u0020]+|[\u0000-\u001F\u0020]+$/ug, ""); +} + +function trimTabAndNewline(url) { + return url.replace(/\u0009|\u000A|\u000D/ug, ""); +} + +function shortenPath(url) { + const { path } = url; + if (path.length === 0) { + return; + } + if (url.scheme === "file" && path.length === 1 && isNormalizedWindowsDriveLetter(path[0])) { + return; + } + + path.pop(); +} + +function includesCredentials(url) { + return url.username !== "" || url.password !== ""; +} + +function cannotHaveAUsernamePasswordPort(url) { + return url.host === null || url.host === "" || url.scheme === "file"; +} + +function hasAnOpaquePath(url) { + return typeof url.path === "string"; +} + +function isNormalizedWindowsDriveLetter(string) { + return /^[A-Za-z]:$/u.test(string); +} + +function URLStateMachine(input, base, encodingOverride, url, stateOverride) { + this.pointer = 0; + this.input = input; + this.base = base || null; + this.encodingOverride = encodingOverride || "utf-8"; + this.stateOverride = stateOverride; + this.url = url; + this.failure = false; + this.parseError = false; + + if (!this.url) { + this.url = { + scheme: "", + username: "", + password: "", + host: null, + port: null, + path: [], + query: null, + fragment: null + }; + + const res = trimControlChars(this.input); + if (res !== this.input) { + this.parseError = true; + } + this.input = res; + } + + const res = trimTabAndNewline(this.input); + if (res !== this.input) { + this.parseError = true; + } + this.input = res; + + this.state = stateOverride || "scheme start"; + + this.buffer = ""; + this.atFlag = false; + this.arrFlag = false; + this.passwordTokenSeenFlag = false; + + this.input = Array.from(this.input, c => c.codePointAt(0)); + + for (; this.pointer <= this.input.length; ++this.pointer) { + const c = this.input[this.pointer]; + const cStr = isNaN(c) ? undefined : String.fromCodePoint(c); + + // exec state machine + const ret = this[`parse ${this.state}`](c, cStr); + if (!ret) { + break; // terminate algorithm + } else if (ret === failure) { + this.failure = true; + break; + } + } +} + +URLStateMachine.prototype["parse scheme start"] = function parseSchemeStart(c, cStr) { + if (infra.isASCIIAlpha(c)) { + this.buffer += cStr.toLowerCase(); + this.state = "scheme"; + } else if (!this.stateOverride) { + this.state = "no scheme"; + --this.pointer; + } else { + this.parseError = true; + return failure; + } + + return true; +}; + +URLStateMachine.prototype["parse scheme"] = function parseScheme(c, cStr) { + if (infra.isASCIIAlphanumeric(c) || c === p("+") || c === p("-") || c === p(".")) { + this.buffer += cStr.toLowerCase(); + } else if (c === p(":")) { + if (this.stateOverride) { + if (isSpecial(this.url) && !isSpecialScheme(this.buffer)) { + return false; + } + + if (!isSpecial(this.url) && isSpecialScheme(this.buffer)) { + return false; + } + + if ((includesCredentials(this.url) || this.url.port !== null) && this.buffer === "file") { + return false; + } + + if (this.url.scheme === "file" && this.url.host === "") { + return false; + } + } + this.url.scheme = this.buffer; + if (this.stateOverride) { + if (this.url.port === defaultPort(this.url.scheme)) { + this.url.port = null; + } + return false; + } + this.buffer = ""; + if (this.url.scheme === "file") { + if (this.input[this.pointer + 1] !== p("/") || this.input[this.pointer + 2] !== p("/")) { + this.parseError = true; + } + this.state = "file"; + } else if (isSpecial(this.url) && this.base !== null && this.base.scheme === this.url.scheme) { + this.state = "special relative or authority"; + } else if (isSpecial(this.url)) { + this.state = "special authority slashes"; + } else if (this.input[this.pointer + 1] === p("/")) { + this.state = "path or authority"; + ++this.pointer; + } else { + this.url.path = ""; + this.state = "opaque path"; + } + } else if (!this.stateOverride) { + this.buffer = ""; + this.state = "no scheme"; + this.pointer = -1; + } else { + this.parseError = true; + return failure; + } + + return true; +}; + +URLStateMachine.prototype["parse no scheme"] = function parseNoScheme(c) { + if (this.base === null || (hasAnOpaquePath(this.base) && c !== p("#"))) { + return failure; + } else if (hasAnOpaquePath(this.base) && c === p("#")) { + this.url.scheme = this.base.scheme; + this.url.path = this.base.path; + this.url.query = this.base.query; + this.url.fragment = ""; + this.state = "fragment"; + } else if (this.base.scheme === "file") { + this.state = "file"; + --this.pointer; + } else { + this.state = "relative"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse special relative or authority"] = function parseSpecialRelativeOrAuthority(c) { + if (c === p("/") && this.input[this.pointer + 1] === p("/")) { + this.state = "special authority ignore slashes"; + ++this.pointer; + } else { + this.parseError = true; + this.state = "relative"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse path or authority"] = function parsePathOrAuthority(c) { + if (c === p("/")) { + this.state = "authority"; + } else { + this.state = "path"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse relative"] = function parseRelative(c) { + this.url.scheme = this.base.scheme; + if (c === p("/")) { + this.state = "relative slash"; + } else if (isSpecial(this.url) && c === p("\\")) { + this.parseError = true; + this.state = "relative slash"; + } else { + this.url.username = this.base.username; + this.url.password = this.base.password; + this.url.host = this.base.host; + this.url.port = this.base.port; + this.url.path = this.base.path.slice(); + this.url.query = this.base.query; + if (c === p("?")) { + this.url.query = ""; + this.state = "query"; + } else if (c === p("#")) { + this.url.fragment = ""; + this.state = "fragment"; + } else if (!isNaN(c)) { + this.url.query = null; + this.url.path.pop(); + this.state = "path"; + --this.pointer; + } + } + + return true; +}; + +URLStateMachine.prototype["parse relative slash"] = function parseRelativeSlash(c) { + if (isSpecial(this.url) && (c === p("/") || c === p("\\"))) { + if (c === p("\\")) { + this.parseError = true; + } + this.state = "special authority ignore slashes"; + } else if (c === p("/")) { + this.state = "authority"; + } else { + this.url.username = this.base.username; + this.url.password = this.base.password; + this.url.host = this.base.host; + this.url.port = this.base.port; + this.state = "path"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse special authority slashes"] = function parseSpecialAuthoritySlashes(c) { + if (c === p("/") && this.input[this.pointer + 1] === p("/")) { + this.state = "special authority ignore slashes"; + ++this.pointer; + } else { + this.parseError = true; + this.state = "special authority ignore slashes"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse special authority ignore slashes"] = function parseSpecialAuthorityIgnoreSlashes(c) { + if (c !== p("/") && c !== p("\\")) { + this.state = "authority"; + --this.pointer; + } else { + this.parseError = true; + } + + return true; +}; + +URLStateMachine.prototype["parse authority"] = function parseAuthority(c, cStr) { + if (c === p("@")) { + this.parseError = true; + if (this.atFlag) { + this.buffer = `%40${this.buffer}`; + } + this.atFlag = true; + + // careful, this is based on buffer and has its own pointer (this.pointer != pointer) and inner chars + const len = countSymbols(this.buffer); + for (let pointer = 0; pointer < len; ++pointer) { + const codePoint = this.buffer.codePointAt(pointer); + + if (codePoint === p(":") && !this.passwordTokenSeenFlag) { + this.passwordTokenSeenFlag = true; + continue; + } + const encodedCodePoints = utf8PercentEncodeCodePoint(codePoint, isUserinfoPercentEncode); + if (this.passwordTokenSeenFlag) { + this.url.password += encodedCodePoints; + } else { + this.url.username += encodedCodePoints; + } + } + this.buffer = ""; + } else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") || + (isSpecial(this.url) && c === p("\\"))) { + if (this.atFlag && this.buffer === "") { + this.parseError = true; + return failure; + } + this.pointer -= countSymbols(this.buffer) + 1; + this.buffer = ""; + this.state = "host"; + } else { + this.buffer += cStr; + } + + return true; +}; + +URLStateMachine.prototype["parse hostname"] = +URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) { + if (this.stateOverride && this.url.scheme === "file") { + --this.pointer; + this.state = "file host"; + } else if (c === p(":") && !this.arrFlag) { + if (this.buffer === "") { + this.parseError = true; + return failure; + } + + if (this.stateOverride === "hostname") { + return false; + } + + const host = parseHost(this.buffer, isNotSpecial(this.url)); + if (host === failure) { + return failure; + } + + this.url.host = host; + this.buffer = ""; + this.state = "port"; + } else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") || + (isSpecial(this.url) && c === p("\\"))) { + --this.pointer; + if (isSpecial(this.url) && this.buffer === "") { + this.parseError = true; + return failure; + } else if (this.stateOverride && this.buffer === "" && + (includesCredentials(this.url) || this.url.port !== null)) { + this.parseError = true; + return false; + } + + const host = parseHost(this.buffer, isNotSpecial(this.url)); + if (host === failure) { + return failure; + } + + this.url.host = host; + this.buffer = ""; + this.state = "path start"; + if (this.stateOverride) { + return false; + } + } else { + if (c === p("[")) { + this.arrFlag = true; + } else if (c === p("]")) { + this.arrFlag = false; + } + this.buffer += cStr; + } + + return true; +}; + +URLStateMachine.prototype["parse port"] = function parsePort(c, cStr) { + if (infra.isASCIIDigit(c)) { + this.buffer += cStr; + } else if (isNaN(c) || c === p("/") || c === p("?") || c === p("#") || + (isSpecial(this.url) && c === p("\\")) || + this.stateOverride) { + if (this.buffer !== "") { + const port = parseInt(this.buffer); + if (port > 2 ** 16 - 1) { + this.parseError = true; + return failure; + } + this.url.port = port === defaultPort(this.url.scheme) ? null : port; + this.buffer = ""; + } + if (this.stateOverride) { + return false; + } + this.state = "path start"; + --this.pointer; + } else { + this.parseError = true; + return failure; + } + + return true; +}; + +const fileOtherwiseCodePoints = new Set([p("/"), p("\\"), p("?"), p("#")]); + +function startsWithWindowsDriveLetter(input, pointer) { + const length = input.length - pointer; + return length >= 2 && + isWindowsDriveLetterCodePoints(input[pointer], input[pointer + 1]) && + (length === 2 || fileOtherwiseCodePoints.has(input[pointer + 2])); +} + +URLStateMachine.prototype["parse file"] = function parseFile(c) { + this.url.scheme = "file"; + this.url.host = ""; + + if (c === p("/") || c === p("\\")) { + if (c === p("\\")) { + this.parseError = true; + } + this.state = "file slash"; + } else if (this.base !== null && this.base.scheme === "file") { + this.url.host = this.base.host; + this.url.path = this.base.path.slice(); + this.url.query = this.base.query; + if (c === p("?")) { + this.url.query = ""; + this.state = "query"; + } else if (c === p("#")) { + this.url.fragment = ""; + this.state = "fragment"; + } else if (!isNaN(c)) { + this.url.query = null; + if (!startsWithWindowsDriveLetter(this.input, this.pointer)) { + shortenPath(this.url); + } else { + this.parseError = true; + this.url.path = []; + } + + this.state = "path"; + --this.pointer; + } + } else { + this.state = "path"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse file slash"] = function parseFileSlash(c) { + if (c === p("/") || c === p("\\")) { + if (c === p("\\")) { + this.parseError = true; + } + this.state = "file host"; + } else { + if (this.base !== null && this.base.scheme === "file") { + if (!startsWithWindowsDriveLetter(this.input, this.pointer) && + isNormalizedWindowsDriveLetterString(this.base.path[0])) { + this.url.path.push(this.base.path[0]); + } + this.url.host = this.base.host; + } + this.state = "path"; + --this.pointer; + } + + return true; +}; + +URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) { + if (isNaN(c) || c === p("/") || c === p("\\") || c === p("?") || c === p("#")) { + --this.pointer; + if (!this.stateOverride && isWindowsDriveLetterString(this.buffer)) { + this.parseError = true; + this.state = "path"; + } else if (this.buffer === "") { + this.url.host = ""; + if (this.stateOverride) { + return false; + } + this.state = "path start"; + } else { + let host = parseHost(this.buffer, isNotSpecial(this.url)); + if (host === failure) { + return failure; + } + if (host === "localhost") { + host = ""; + } + this.url.host = host; + + if (this.stateOverride) { + return false; + } + + this.buffer = ""; + this.state = "path start"; + } + } else { + this.buffer += cStr; + } + + return true; +}; + +URLStateMachine.prototype["parse path start"] = function parsePathStart(c) { + if (isSpecial(this.url)) { + if (c === p("\\")) { + this.parseError = true; + } + this.state = "path"; + + if (c !== p("/") && c !== p("\\")) { + --this.pointer; + } + } else if (!this.stateOverride && c === p("?")) { + this.url.query = ""; + this.state = "query"; + } else if (!this.stateOverride && c === p("#")) { + this.url.fragment = ""; + this.state = "fragment"; + } else if (c !== undefined) { + this.state = "path"; + if (c !== p("/")) { + --this.pointer; + } + } else if (this.stateOverride && this.url.host === null) { + this.url.path.push(""); + } + + return true; +}; + +URLStateMachine.prototype["parse path"] = function parsePath(c) { + if (isNaN(c) || c === p("/") || (isSpecial(this.url) && c === p("\\")) || + (!this.stateOverride && (c === p("?") || c === p("#")))) { + if (isSpecial(this.url) && c === p("\\")) { + this.parseError = true; + } + + if (isDoubleDot(this.buffer)) { + shortenPath(this.url); + if (c !== p("/") && !(isSpecial(this.url) && c === p("\\"))) { + this.url.path.push(""); + } + } else if (isSingleDot(this.buffer) && c !== p("/") && + !(isSpecial(this.url) && c === p("\\"))) { + this.url.path.push(""); + } else if (!isSingleDot(this.buffer)) { + if (this.url.scheme === "file" && this.url.path.length === 0 && isWindowsDriveLetterString(this.buffer)) { + this.buffer = `${this.buffer[0]}:`; + } + this.url.path.push(this.buffer); + } + this.buffer = ""; + if (c === p("?")) { + this.url.query = ""; + this.state = "query"; + } + if (c === p("#")) { + this.url.fragment = ""; + this.state = "fragment"; + } + } else { + // TODO: If c is not a URL code point and not "%", parse error. + + if (c === p("%") && + (!infra.isASCIIHex(this.input[this.pointer + 1]) || + !infra.isASCIIHex(this.input[this.pointer + 2]))) { + this.parseError = true; + } + + this.buffer += utf8PercentEncodeCodePoint(c, isPathPercentEncode); + } + + return true; +}; + +URLStateMachine.prototype["parse opaque path"] = function parseOpaquePath(c) { + if (c === p("?")) { + this.url.query = ""; + this.state = "query"; + } else if (c === p("#")) { + this.url.fragment = ""; + this.state = "fragment"; + } else { + // TODO: Add: not a URL code point + if (!isNaN(c) && c !== p("%")) { + this.parseError = true; + } + + if (c === p("%") && + (!infra.isASCIIHex(this.input[this.pointer + 1]) || + !infra.isASCIIHex(this.input[this.pointer + 2]))) { + this.parseError = true; + } + + if (!isNaN(c)) { + this.url.path += utf8PercentEncodeCodePoint(c, isC0ControlPercentEncode); + } + } + + return true; +}; + +URLStateMachine.prototype["parse query"] = function parseQuery(c, cStr) { + if (!isSpecial(this.url) || this.url.scheme === "ws" || this.url.scheme === "wss") { + this.encodingOverride = "utf-8"; + } + + if ((!this.stateOverride && c === p("#")) || isNaN(c)) { + const queryPercentEncodePredicate = isSpecial(this.url) ? isSpecialQueryPercentEncode : isQueryPercentEncode; + this.url.query += utf8PercentEncodeString(this.buffer, queryPercentEncodePredicate); + + this.buffer = ""; + + if (c === p("#")) { + this.url.fragment = ""; + this.state = "fragment"; + } + } else if (!isNaN(c)) { + // TODO: If c is not a URL code point and not "%", parse error. + + if (c === p("%") && + (!infra.isASCIIHex(this.input[this.pointer + 1]) || + !infra.isASCIIHex(this.input[this.pointer + 2]))) { + this.parseError = true; + } + + this.buffer += cStr; + } + + return true; +}; + +URLStateMachine.prototype["parse fragment"] = function parseFragment(c) { + if (!isNaN(c)) { + // TODO: If c is not a URL code point and not "%", parse error. + if (c === p("%") && + (!infra.isASCIIHex(this.input[this.pointer + 1]) || + !infra.isASCIIHex(this.input[this.pointer + 2]))) { + this.parseError = true; + } + + this.url.fragment += utf8PercentEncodeCodePoint(c, isFragmentPercentEncode); + } + + return true; +}; + +function serializeURL(url, excludeFragment) { + let output = `${url.scheme}:`; + if (url.host !== null) { + output += "//"; + + if (url.username !== "" || url.password !== "") { + output += url.username; + if (url.password !== "") { + output += `:${url.password}`; + } + output += "@"; + } + + output += serializeHost(url.host); + + if (url.port !== null) { + output += `:${url.port}`; + } + } + + if (url.host === null && !hasAnOpaquePath(url) && url.path.length > 1 && url.path[0] === "") { + output += "/."; + } + output += serializePath(url); + + if (url.query !== null) { + output += `?${url.query}`; + } + + if (!excludeFragment && url.fragment !== null) { + output += `#${url.fragment}`; + } + + return output; +} + +function serializeOrigin(tuple) { + let result = `${tuple.scheme}://`; + result += serializeHost(tuple.host); + + if (tuple.port !== null) { + result += `:${tuple.port}`; + } + + return result; +} + +function serializePath(url) { + if (hasAnOpaquePath(url)) { + return url.path; + } + + let output = ""; + for (const segment of url.path) { + output += `/${segment}`; + } + return output; +} + +module.exports.serializeURL = serializeURL; + +module.exports.serializePath = serializePath; + +module.exports.serializeURLOrigin = function (url) { + // https://url.spec.whatwg.org/#concept-url-origin + switch (url.scheme) { + case "blob": { + const pathURL = module.exports.parseURL(serializePath(url)); + if (pathURL === null) { + return "null"; + } + if (pathURL.scheme !== "http" && pathURL.scheme !== "https") { + return "null"; + } + return module.exports.serializeURLOrigin(pathURL); + } + case "ftp": + case "http": + case "https": + case "ws": + case "wss": + return serializeOrigin({ + scheme: url.scheme, + host: url.host, + port: url.port + }); + case "file": + // The spec says: + // > Unfortunate as it is, this is left as an exercise to the reader. When in doubt, return a new opaque origin. + // Browsers tested so far: + // - Chrome says "file://", but treats file: URLs as cross-origin for most (all?) purposes; see e.g. + // https://bugs.chromium.org/p/chromium/issues/detail?id=37586 + // - Firefox says "null", but treats file: URLs as same-origin sometimes based on directory stuff; see + // https://developer.mozilla.org/en-US/docs/Archive/Misc_top_level/Same-origin_policy_for_file:_URIs + return "null"; + default: + // serializing an opaque origin returns "null" + return "null"; + } +}; + +module.exports.basicURLParse = function (input, options) { + if (options === undefined) { + options = {}; + } + + const usm = new URLStateMachine(input, options.baseURL, options.encodingOverride, options.url, options.stateOverride); + if (usm.failure) { + return null; + } + + return usm.url; +}; + +module.exports.setTheUsername = function (url, username) { + url.username = utf8PercentEncodeString(username, isUserinfoPercentEncode); +}; + +module.exports.setThePassword = function (url, password) { + url.password = utf8PercentEncodeString(password, isUserinfoPercentEncode); +}; + +module.exports.serializeHost = serializeHost; + +module.exports.cannotHaveAUsernamePasswordPort = cannotHaveAUsernamePasswordPort; + +module.exports.hasAnOpaquePath = hasAnOpaquePath; + +module.exports.serializeInteger = function (integer) { + return String(integer); +}; + +module.exports.parseURL = function (input, options) { + if (options === undefined) { + options = {}; + } + + // We don't handle blobs, so this just delegates: + return module.exports.basicURLParse(input, { baseURL: options.baseURL, encodingOverride: options.encodingOverride }); +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/urlencoded.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/urlencoded.js new file mode 100644 index 000000000..e72306374 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/urlencoded.js @@ -0,0 +1,106 @@ +"use strict"; +const { utf8Encode, utf8DecodeWithoutBOM } = require("./encoding"); +const { percentDecodeBytes, utf8PercentEncodeString, isURLEncodedPercentEncode } = require("./percent-encoding"); + +function p(char) { + return char.codePointAt(0); +} + +// https://url.spec.whatwg.org/#concept-urlencoded-parser +function parseUrlencoded(input) { + const sequences = strictlySplitByteSequence(input, p("&")); + const output = []; + for (const bytes of sequences) { + if (bytes.length === 0) { + continue; + } + + let name, value; + const indexOfEqual = bytes.indexOf(p("=")); + + if (indexOfEqual >= 0) { + name = bytes.slice(0, indexOfEqual); + value = bytes.slice(indexOfEqual + 1); + } else { + name = bytes; + value = new Uint8Array(0); + } + + name = replaceByteInByteSequence(name, 0x2B, 0x20); + value = replaceByteInByteSequence(value, 0x2B, 0x20); + + const nameString = utf8DecodeWithoutBOM(percentDecodeBytes(name)); + const valueString = utf8DecodeWithoutBOM(percentDecodeBytes(value)); + + output.push([nameString, valueString]); + } + return output; +} + +// https://url.spec.whatwg.org/#concept-urlencoded-string-parser +function parseUrlencodedString(input) { + return parseUrlencoded(utf8Encode(input)); +} + +// https://url.spec.whatwg.org/#concept-urlencoded-serializer +function serializeUrlencoded(tuples, encodingOverride = undefined) { + let encoding = "utf-8"; + if (encodingOverride !== undefined) { + // TODO "get the output encoding", i.e. handle encoding labels vs. names. + encoding = encodingOverride; + } + + let output = ""; + for (const [i, tuple] of tuples.entries()) { + // TODO: handle encoding override + + const name = utf8PercentEncodeString(tuple[0], isURLEncodedPercentEncode, true); + + let value = tuple[1]; + if (tuple.length > 2 && tuple[2] !== undefined) { + if (tuple[2] === "hidden" && name === "_charset_") { + value = encoding; + } else if (tuple[2] === "file") { + // value is a File object + value = value.name; + } + } + + value = utf8PercentEncodeString(value, isURLEncodedPercentEncode, true); + + if (i !== 0) { + output += "&"; + } + output += `${name}=${value}`; + } + return output; +} + +function strictlySplitByteSequence(buf, cp) { + const list = []; + let last = 0; + let i = buf.indexOf(cp); + while (i >= 0) { + list.push(buf.slice(last, i)); + last = i + 1; + i = buf.indexOf(cp, last); + } + if (last !== buf.length) { + list.push(buf.slice(last)); + } + return list; +} + +function replaceByteInByteSequence(buf, from, to) { + let i = buf.indexOf(from); + while (i >= 0) { + buf[i] = to; + i = buf.indexOf(from, i + 1); + } + return buf; +} + +module.exports = { + parseUrlencodedString, + serializeUrlencoded +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/lib/utils.js b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/utils.js new file mode 100644 index 000000000..3af17706f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/lib/utils.js @@ -0,0 +1,190 @@ +"use strict"; + +// Returns "Type(value) is Object" in ES terminology. +function isObject(value) { + return (typeof value === "object" && value !== null) || typeof value === "function"; +} + +const hasOwn = Function.prototype.call.bind(Object.prototype.hasOwnProperty); + +// Like `Object.assign`, but using `[[GetOwnProperty]]` and `[[DefineOwnProperty]]` +// instead of `[[Get]]` and `[[Set]]` and only allowing objects +function define(target, source) { + for (const key of Reflect.ownKeys(source)) { + const descriptor = Reflect.getOwnPropertyDescriptor(source, key); + if (descriptor && !Reflect.defineProperty(target, key, descriptor)) { + throw new TypeError(`Cannot redefine property: ${String(key)}`); + } + } +} + +function newObjectInRealm(globalObject, object) { + const ctorRegistry = initCtorRegistry(globalObject); + return Object.defineProperties( + Object.create(ctorRegistry["%Object.prototype%"]), + Object.getOwnPropertyDescriptors(object) + ); +} + +const wrapperSymbol = Symbol("wrapper"); +const implSymbol = Symbol("impl"); +const sameObjectCaches = Symbol("SameObject caches"); +const ctorRegistrySymbol = Symbol.for("[webidl2js] constructor registry"); + +const AsyncIteratorPrototype = Object.getPrototypeOf(Object.getPrototypeOf(async function* () {}).prototype); + +function initCtorRegistry(globalObject) { + if (hasOwn(globalObject, ctorRegistrySymbol)) { + return globalObject[ctorRegistrySymbol]; + } + + const ctorRegistry = Object.create(null); + + // In addition to registering all the WebIDL2JS-generated types in the constructor registry, + // we also register a few intrinsics that we make use of in generated code, since they are not + // easy to grab from the globalObject variable. + ctorRegistry["%Object.prototype%"] = globalObject.Object.prototype; + ctorRegistry["%IteratorPrototype%"] = Object.getPrototypeOf( + Object.getPrototypeOf(new globalObject.Array()[Symbol.iterator]()) + ); + + try { + ctorRegistry["%AsyncIteratorPrototype%"] = Object.getPrototypeOf( + Object.getPrototypeOf( + globalObject.eval("(async function* () {})").prototype + ) + ); + } catch { + ctorRegistry["%AsyncIteratorPrototype%"] = AsyncIteratorPrototype; + } + + globalObject[ctorRegistrySymbol] = ctorRegistry; + return ctorRegistry; +} + +function getSameObject(wrapper, prop, creator) { + if (!wrapper[sameObjectCaches]) { + wrapper[sameObjectCaches] = Object.create(null); + } + + if (prop in wrapper[sameObjectCaches]) { + return wrapper[sameObjectCaches][prop]; + } + + wrapper[sameObjectCaches][prop] = creator(); + return wrapper[sameObjectCaches][prop]; +} + +function wrapperForImpl(impl) { + return impl ? impl[wrapperSymbol] : null; +} + +function implForWrapper(wrapper) { + return wrapper ? wrapper[implSymbol] : null; +} + +function tryWrapperForImpl(impl) { + const wrapper = wrapperForImpl(impl); + return wrapper ? wrapper : impl; +} + +function tryImplForWrapper(wrapper) { + const impl = implForWrapper(wrapper); + return impl ? impl : wrapper; +} + +const iterInternalSymbol = Symbol("internal"); + +function isArrayIndexPropName(P) { + if (typeof P !== "string") { + return false; + } + const i = P >>> 0; + if (i === 2 ** 32 - 1) { + return false; + } + const s = `${i}`; + if (P !== s) { + return false; + } + return true; +} + +const byteLengthGetter = + Object.getOwnPropertyDescriptor(ArrayBuffer.prototype, "byteLength").get; +function isArrayBuffer(value) { + try { + byteLengthGetter.call(value); + return true; + } catch (e) { + return false; + } +} + +function iteratorResult([key, value], kind) { + let result; + switch (kind) { + case "key": + result = key; + break; + case "value": + result = value; + break; + case "key+value": + result = [key, value]; + break; + } + return { value: result, done: false }; +} + +const supportsPropertyIndex = Symbol("supports property index"); +const supportedPropertyIndices = Symbol("supported property indices"); +const supportsPropertyName = Symbol("supports property name"); +const supportedPropertyNames = Symbol("supported property names"); +const indexedGet = Symbol("indexed property get"); +const indexedSetNew = Symbol("indexed property set new"); +const indexedSetExisting = Symbol("indexed property set existing"); +const namedGet = Symbol("named property get"); +const namedSetNew = Symbol("named property set new"); +const namedSetExisting = Symbol("named property set existing"); +const namedDelete = Symbol("named property delete"); + +const asyncIteratorNext = Symbol("async iterator get the next iteration result"); +const asyncIteratorReturn = Symbol("async iterator return steps"); +const asyncIteratorInit = Symbol("async iterator initialization steps"); +const asyncIteratorEOI = Symbol("async iterator end of iteration"); + +module.exports = exports = { + isObject, + hasOwn, + define, + newObjectInRealm, + wrapperSymbol, + implSymbol, + getSameObject, + ctorRegistrySymbol, + initCtorRegistry, + wrapperForImpl, + implForWrapper, + tryWrapperForImpl, + tryImplForWrapper, + iterInternalSymbol, + isArrayBuffer, + isArrayIndexPropName, + supportsPropertyIndex, + supportedPropertyIndices, + supportsPropertyName, + supportedPropertyNames, + indexedGet, + indexedSetNew, + indexedSetExisting, + namedGet, + namedSetNew, + namedSetExisting, + namedDelete, + asyncIteratorNext, + asyncIteratorReturn, + asyncIteratorInit, + asyncIteratorEOI, + iteratorResult +}; diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/package.json b/week-3/04-course-app-hard/node_modules/whatwg-url/package.json new file mode 100644 index 000000000..eb02627e7 --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/package.json @@ -0,0 +1,58 @@ +{ + "name": "whatwg-url", + "version": "13.0.0", + "description": "An implementation of the WHATWG URL Standard's URL API and parsing machinery", + "main": "index.js", + "files": [ + "index.js", + "webidl2js-wrapper.js", + "lib/*.js" + ], + "author": "Sebastian Mayr ", + "license": "MIT", + "repository": "jsdom/whatwg-url", + "dependencies": { + "tr46": "^4.1.1", + "webidl-conversions": "^7.0.0" + }, + "devDependencies": { + "@domenic/eslint-config": "^3.0.0", + "benchmark": "^2.1.4", + "domexception": "^4.0.0", + "esbuild": "^0.17.19", + "eslint": "^8.41.0", + "jest": "^29.5.0", + "minipass-fetch": "^3.0.3", + "webidl2js": "^17.1.0" + }, + "engines": { + "node": ">=16" + }, + "scripts": { + "coverage": "jest --coverage", + "lint": "eslint .", + "prepare": "node scripts/transform.js", + "pretest": "node scripts/get-latest-platform-tests.js && node scripts/transform.js", + "build-live-viewer": "esbuild --bundle --format=esm --sourcemap --outfile=live-viewer/whatwg-url.mjs index.js", + "test": "jest" + }, + "jest": { + "collectCoverageFrom": [ + "lib/**/*.js", + "!lib/utils.js" + ], + "coverageDirectory": "coverage", + "coverageReporters": [ + "lcov", + "text-summary" + ], + "testEnvironment": "node", + "testMatch": [ + "/test/**/*.js" + ], + "testPathIgnorePatterns": [ + "^/test/testharness.js$", + "^/test/web-platform-tests/" + ] + } +} diff --git a/week-3/04-course-app-hard/node_modules/whatwg-url/webidl2js-wrapper.js b/week-3/04-course-app-hard/node_modules/whatwg-url/webidl2js-wrapper.js new file mode 100644 index 000000000..b731ace5f --- /dev/null +++ b/week-3/04-course-app-hard/node_modules/whatwg-url/webidl2js-wrapper.js @@ -0,0 +1,7 @@ +"use strict"; + +const URL = require("./lib/URL"); +const URLSearchParams = require("./lib/URLSearchParams"); + +exports.URL = URL; +exports.URLSearchParams = URLSearchParams; diff --git a/week-3/04-course-app-hard/package-lock.json b/week-3/04-course-app-hard/package-lock.json new file mode 100644 index 000000000..5d0efabec --- /dev/null +++ b/week-3/04-course-app-hard/package-lock.json @@ -0,0 +1,391 @@ +{ + "name": "02-course-app-easy", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + 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Admins should be able to sign up 2. Admins should be able to create courses 1. Course has a title, description, price, and image link 2. Course should be able to be published or unpublished 3. Admins should be able to edit courses 4. Users should be able to sign up 5. Users should be able to purchase courses 6. Users should be able to view purchased courses 7. Users should be able to view all courses", "main": "index.js", + "type": "module", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "keywords": [], "author": "", - "license": "ISC" + "license": "ISC", + "dependencies": { + "cors": "^2.8.5", + "jsonwebtoken": "^9.0.2", + "mongoose": "^8.4.4", + "uuid": "^10.0.0" + } } diff --git a/week-3/04-course-app-hard/tempCodeRunnerFile.js b/week-3/04-course-app-hard/tempCodeRunnerFile.js new file mode 100644 index 000000000..77b3a60df --- /dev/null +++ b/week-3/04-course-app-hard/tempCodeRunnerFile.js @@ -0,0 +1 @@ +/users/courses \ No newline at end of file diff --git a/week-4/01-easy-todo-app/README.md b/week-4/01-easy-todo-app/README.md index eb75f4d9c..00973a6c8 100644 --- a/week-4/01-easy-todo-app/README.md +++ b/week-4/01-easy-todo-app/README.md @@ -1,18 +1,28 @@ - ### Assignment 1 -Create the frontend for a TODO app. -You should be able to + +Create the frontend for a TODO app. +You should be able to + 1. Create a new TODO 2. List all TODOs 3. Delete a TODO -The backend we've already written in +The backend we've already written in /week2/02-nodejs/solutions/todoServer.solution.js Make sure you + 1. Add app.listen so it is running on 3000 2. Use cors Good to do + 1. Break things down into components 2. Use a library like axios to make the requests + +Development Info: + +> Created a Todo compoment --will show the deteils of Todo and delete , done +> 1 page: +> Upper part Input field to enter the text and +> Below show all the things diff --git a/week-4/01-easy-todo-app/package-lock.json b/week-4/01-easy-todo-app/package-lock.json new file mode 100644 index 000000000..02707dd83 --- /dev/null +++ b/week-4/01-easy-todo-app/package-lock.json @@ -0,0 +1,4123 @@ +{ + "name": "01-easy-todo-app", + "version": "0.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "01-easy-todo-app", + "version": "0.0.0", + "dependencies": { + "@emotion/react": "^11.11.4", + "@emotion/styled": "^11.11.5", + "@mui/material": "^5.16.0", + "axios": "^1.7.2", + "react": "^18.2.0", + "react-dom": "^18.2.0" + }, + "devDependencies": { + "@types/react": "^18.0.37", + "@types/react-dom": "^18.0.11", + "@vitejs/plugin-react": "^4.0.0", + "eslint": "^8.38.0", + "eslint-plugin-react": 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'react' -import reactLogo from './assets/react.svg' -import viteLogo from '/vite.svg' -import './App.css' +import React, { useState, useRef } from "react"; +import "./App.css"; +import axios from "axios"; +import Todo from "./todo"; +import { Box, Button, Card, TextField, Typography } from "@mui/material"; function App() { - const [todos, setTodos] = useState([]) - // fetch all todos from server + const [todos, useTodos] = useState([]); + const nameInput = useRef(null); + const descriptionInput = useRef(null); + // fetch all todos from server + React.useEffect(() => { + async function fetchData() { + let res = await axios.get("http://localhost:3000/getAllTodos"); + useTodos(res.data); + } + fetchData(); + }, []); + + async function addTodo() { + const nameValue = nameInput.current.value; + const descriptionValue = descriptionInput.current.value; + if ( + (nameValue && nameValue.length < 0) || + (descriptionValue && descriptionValue.length < 0) + ) { + /// TODO: here handle this + } else { + let resAdded = await axios.post("http://localhost:3000/addTodo", { + name: nameValue, + description: descriptionValue, + }); + if (resAdded.status == 200) { + const updatedTodos = [...todos, resAdded.data["data"]]; + useTodos(updatedTodos); + } + } + } + + async function deleteAccount(TodoId) { + let isTodoDel = await axios.post( + "http://localhost:3000/deleteTodo/" + TodoId + ); + + if (isTodoDel.data["statusCode"] == 1) { + let updatedTodo = todos.filter((ele) => { + return ele.id != TodoId; + }); + useTodos(updatedTodo); + } + } return ( <>

Easy Todo App

- + + Add Todo + + + + + + + + + {todos.map((todo) => { + return ( + + ); + })}
- ) + ); } - -function Todo(props) { - // Add a delete button here so user can delete a TODO. - return
- {props.title} -
-} - -export default App +export default App; diff --git a/week-4/01-easy-todo-app/src/todo.jsx b/week-4/01-easy-todo-app/src/todo.jsx new file mode 100644 index 000000000..036058c0c --- /dev/null +++ b/week-4/01-easy-todo-app/src/todo.jsx @@ -0,0 +1,37 @@ +import { Box, Card } from "@mui/material"; +import { Button } from "@mui/material"; +import { red } from "@mui/material/colors"; +import React from "react"; + +function Todo(props) { + return ( +
+ + Name : {props.name} +

+ Details : {props.description} + + + + + +
+ ); +} + +export default Todo; diff --git a/week-4/01-easy-todo-app/yarn.lock b/week-4/01-easy-todo-app/yarn.lock index 108cd9d24..d77e08ada 100644 --- a/week-4/01-easy-todo-app/yarn.lock +++ b/week-4/01-easy-todo-app/yarn.lock @@ -4,32 +4,32 @@ "@aashutoshrathi/word-wrap@^1.2.3": version "1.2.6" - resolved "https://registry.yarnpkg.com/@aashutoshrathi/word-wrap/-/word-wrap-1.2.6.tgz#bd9154aec9983f77b3a034ecaa015c2e4201f6cf" + resolved "https://registry.npmjs.org/@aashutoshrathi/word-wrap/-/word-wrap-1.2.6.tgz" integrity sha512-1Yjs2SvM8TflER/OD3cOjhWWOZb58A2t7wpE2S9XfBYTiIl+XFhQG2bjy4Pu1I+EAlCNUzRDYDdFwFYUKvXcIA== "@ampproject/remapping@^2.2.0": version "2.2.1" - resolved "https://registry.yarnpkg.com/@ampproject/remapping/-/remapping-2.2.1.tgz#99e8e11851128b8702cd57c33684f1d0f260b630" + resolved "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.2.1.tgz" integrity sha512-lFMjJTrFL3j7L9yBxwYfCq2k6qqwHyzuUl/XBnif78PWTJYyL/dfowQHWE3sp6U6ZzqWiiIZnpTMO96zhkjwtg== dependencies: "@jridgewell/gen-mapping" "^0.3.0" "@jridgewell/trace-mapping" "^0.3.9" -"@babel/code-frame@^7.22.5": +"@babel/code-frame@^7.0.0", "@babel/code-frame@^7.22.5": version "7.22.5" - resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.22.5.tgz#234d98e1551960604f1246e6475891a570ad5658" + resolved "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.22.5.tgz" integrity sha512-Xmwn266vad+6DAqEB2A6V/CcZVp62BbwVmcOJc2RPuwih1kw02TjQvWVWlcKGbBPd+8/0V5DEkOcizRGYsspYQ== dependencies: "@babel/highlight" "^7.22.5" "@babel/compat-data@^7.22.5": version "7.22.5" - resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.22.5.tgz#b1f6c86a02d85d2dd3368a2b67c09add8cd0c255" + resolved "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.22.5.tgz" integrity sha512-4Jc/YuIaYqKnDDz892kPIledykKg12Aw1PYX5i/TY28anJtacvM1Rrr8wbieB9GfEJwlzqT0hUEao0CxEebiDA== -"@babel/core@^7.22.5": +"@babel/core@^7.0.0", "@babel/core@^7.0.0-0", "@babel/core@^7.22.5": version "7.22.5" - resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.22.5.tgz#d67d9747ecf26ee7ecd3ebae1ee22225fe902a89" + resolved "https://registry.npmjs.org/@babel/core/-/core-7.22.5.tgz" integrity sha512-SBuTAjg91A3eKOvD+bPEz3LlhHZRNu1nFOVts9lzDJTXshHTjII0BAtDS3Y2DAkdZdDKWVZGVwkDfc4Clxn1dg== dependencies: "@ampproject/remapping" "^2.2.0" @@ -50,7 +50,7 @@ "@babel/generator@^7.22.5": version "7.22.5" - resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.22.5.tgz#1e7bf768688acfb05cf30b2369ef855e82d984f7" + resolved "https://registry.npmjs.org/@babel/generator/-/generator-7.22.5.tgz" integrity sha512-+lcUbnTRhd0jOewtFSedLyiPsD5tswKkbgcezOqqWFUVNEwoUTlpPOBmvhG7OXWLR4jMdv0czPGH5XbflnD1EA== dependencies: "@babel/types" "^7.22.5" @@ -60,7 +60,7 @@ "@babel/helper-compilation-targets@^7.22.5": version "7.22.5" - resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.22.5.tgz#fc7319fc54c5e2fa14b2909cf3c5fd3046813e02" + resolved "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.22.5.tgz" integrity sha512-Ji+ywpHeuqxB8WDxraCiqR0xfhYjiDE/e6k7FuIaANnoOFxAHskHChz4vA1mJC9Lbm01s1PVAGhQY4FUKSkGZw== dependencies: "@babel/compat-data" "^7.22.5" @@ -71,12 +71,12 @@ "@babel/helper-environment-visitor@^7.22.5": version "7.22.5" - resolved "https://registry.yarnpkg.com/@babel/helper-environment-visitor/-/helper-environment-visitor-7.22.5.tgz#f06dd41b7c1f44e1f8da6c4055b41ab3a09a7e98" + resolved "https://registry.npmjs.org/@babel/helper-environment-visitor/-/helper-environment-visitor-7.22.5.tgz" integrity sha512-XGmhECfVA/5sAt+H+xpSg0mfrHq6FzNr9Oxh7PSEBBRUb/mL7Kz3NICXb194rCqAEdxkhPT1a88teizAFyvk8Q== "@babel/helper-function-name@^7.22.5": version "7.22.5" - 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