Merge pull request #25 from KLVTZ/feature/support-roku-verification

Support Roku purchase verification

README.md

@@ -5,16 +5,12 @@ written by Paul Crawford, I wanted a pure JavaScript implementation of in-app pu
 I also wanted to add support for other app stores, and not just limit this to Apple. The `iap`
 module is exactly that. Pull requests to add support for other platforms are very welcome!
 
-
-
 ## Installation
 
 ```sh
 npm install iap
 ```
 
-
-
 ## Usage
 
 Only a single method is exposed to verify purchase receipts:
@@ -24,11 +20,12 @@ var iap = require('iap');
 
 var platform = 'apple';
 var payment = {
-	receipt: 'receipt data',   // always required
+	receipt: 'receipt data', // always required
 	productId: 'abc',
 	packageName: 'my.app',
 	secret: 'password',
-	subscription: true	// optional, if google play subscription
+	subscription: true,	// optional, if google play subscription
+	devToken: 'developer id' // required, if roku
 };
 
 iap.verifyPayment(platform, payment, function (error, response) {
@@ -39,8 +36,6 @@ iap.verifyPayment(platform, payment, function (error, response) {
 The receipt you pass must conform to the requirements of the backend you are verifying with. Read
 the next chapter for more information on the format.
 
-
-
 ## Supported platforms
 
 ### Apple
@@ -120,6 +115,48 @@ receipt sub-object.
 }
 ```
 
+### Roku
+
+The receiept string represents the transaction returned from a channel or
+product purchase.
+
+A developer ID is required.
+
+**The response**
+
+The response passed back to your callback will also be Roku specific. The entire
+parsed receipt will be in the result object:
+
+```json
+{
+	"receipt": {
+		"errorCode": null,
+		"errorDetails": null,
+		"errorMessage": "",
+		"status": 0,
+		"amount": 4.99,
+		"cancelled": false,
+		"channelId": 70391,
+		"channelName": "abc",
+		"couponCode": null,
+		"currency": "usd",
+		"expirationDate": 1488337344000,
+		"originalPurchaseDate": 1483153344000,
+		"partnerReferenceId": null,
+		"productId": "5KAZUPGB.0RF0",
+		"productName": "BASIC - US MONTHLY",
+		"purchaseDate": 1483153344000,
+		"quantity": 1,
+		"rokuCustomerId": "5e56c4c4d7d1504f813c630c2790e54a",
+		"tax": 0,
+		"total": 0,
+		"transactionId": "380e9932-ed9a-48e8-bd66-a6ec00b5efd1"
+	},
+	"transactionId": "380e9932-ed9a-48e8-bd66-a6ec00b5efd1",
+	"productId": "abc",
+	"platform": "roku"
+}
+```
 
 ### All Platforms
 
@@ -131,13 +168,10 @@ will be included:
 * platform, which is always the platform you passed.
 
 
-
 ## License
 
 MIT
 
-
-
 ## References
 
 ### Apple References
@@ -156,7 +190,7 @@ MIT
  * https://bitbucket.org/gooroo175/google-play-purchase-validator/src/d88278c30df0d0dc51b852b7bcab5f40e3a30923/index.js?at=master
  * https://github.com/machadogj/node-google-bigquery
  * https://github.com/extrabacon/google-oauth-jwt/blob/master/lib/request-jwt.js
- 
+
 **API Reference**
 
  * https://developer.android.com/google/play/billing/gp-purchase-status-api.html
@@ -168,9 +202,15 @@ MIT
  * https://developers.google.com/android-publisher/api-ref/purchases/products/get
  * http://developer.android.com/google/play/billing/billing_testing.html
  * http://stackoverflow.com/questions/24323207/use-service-account-to-verify-google-inapppurchase
- 
+
 **Receipt Generation**
 
  * http://developer.android.com/training/in-app-billing/preparing-iab-app.html
  * http://developer.android.com/tools/publishing/app-signing.html
  * http://developer.android.com/google/play/billing/api.html#managed
+
+### Roku References
+
+**API Reference**
+
+ * https://sdkdocs.roku.com/display/sdkdoc/Web+Service+API#WebServiceAPI-/listen/transaction-service.svc/validate-transaction/{devtoken}/{transactionid}

bin/verify-roku.js

@@ -0,0 +1,22 @@
+#!/usr/bin/env node
+
+var argv = require('minimist')(process.argv.slice(2), { string: ['devToken', 'receipt'] });
+
+if (argv.help) {
+	console.log('Usage: ./verfiy.js --devToken=\'developer-id\' --receipt=\'transaction-data\'');
+	process.exit(1);
+}
+
+var iap = require('../index.js');
+
+var platform = 'roku';
+var payment = argv;
+
+iap.verifyPayment(platform, payment, function (error, result) {
+	if (error) {
+		return console.log(error);
+	}
+
+	console.log('Verified:');
+	console.log(JSON.stringify(result, null, '\t'));
+});

index.js

@@ -1,6 +1,7 @@
 var platforms = {
 	apple: require('./lib/apple'),
-	google: require('./lib/google')
+	google: require('./lib/google'),
+	roku: require('./lib/roku')
 };
 
 

lib/roku/index.js

@@ -0,0 +1,55 @@
+var assert = require('assert');
+var https = require('../https');
+
+var apiUrl = {
+	production: 'https://apipub.roku.com/listen/transaction-service.svc/validate-transaction'
+};
+
+exports.verifyPayment = function (payment, cb) {
+	try {
+		assert.equal(typeof payment.devToken, 'string', 'Developer ID must be a string');
+		assert.equal(typeof payment.receipt, 'string', 'Receipt must be a string');
+		assert.equal(payment.receipt.match(/\w/g).length, 32, 'Receipt must contain 32 digits');
+		assert.equal(payment.receipt.match(/-/g).length, 4, 'Receipt must contain 4 dashes');
+	} catch (error) {
+		return process.nextTick(function () {
+			cb(error);
+		});
+	}
+
+	var requestUrl = apiUrl.production + '/' + payment.devToken + '/' + payment.receipt;
+
+	https.get(requestUrl, {headers: {Accept: 'application/json'}}, function (error, res, resultString) {
+		if (error) {
+			return cb(error);
+		}
+
+		if (res.statusCode !== 200) {
+			return cb(new Error('Received ' + res.statusCode + ' status code with body: ' + resultString));
+		}
+
+		var resultObject = null;
+
+		try {
+			resultObject = JSON.parse(resultString);
+		} catch (error) {
+			return cb(error);
+		}
+
+		if (resultObject.errorMessage) {
+			return cb(new Error(resultObject.errorMessage));
+		}
+
+		// parse non-standard date properties (i.e. /Date(1483242628000-0800)/)
+		// in order to extract value by milliseconds
+		resultObject.expirationDate = new Date(parseInt(resultObject.expirationDate.substr(6), 10)).getTime();
+		resultObject.originalPurchaseDate = new Date(parseInt(resultObject.originalPurchaseDate.substr(6), 10)).getTime();
+		resultObject.purchaseDate = new Date(parseInt(resultObject.purchaseDate.substr(6), 10)).getTime();
+
+		cb(null, {
+			receipt: resultObject,
+			transactionId: resultObject.transactionId,
+			productId: resultObject.productId
+		});
+	});
+};