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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /** | ||
| * | ||
| * Copyright (c) 2025 Silicon Labs | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
||
| import { v4 as uuidv4 } from 'uuid' | ||
| import { parse as querystringParse } from 'querystring' | ||
|
|
||
| // Session handling constants | ||
| const SESSION_KEY = 'session_uuid' | ||
| const APP_ID_KEY = 'stsApplicationId' | ||
| const DEFAULT_APP_ID = 'defaultAppId' | ||
|
|
||
| /** | ||
| * Loads a session map from the session storage. | ||
| * Session map is a string=>string key/value map, | ||
| * which contains "appId" as a key, and the generated UUID as a value. | ||
| * If appId is not present (as in standalone), then a default value | ||
| * is used. | ||
| * | ||
| * @param {*} window | ||
| * @returns | ||
| */ | ||
| function loadSessionMap(window) { | ||
| let json = window.sessionStorage.getItem(SESSION_KEY) | ||
| if (json == null) { | ||
| // Nothing there, let's just create an empty map. | ||
| return new Map() | ||
| } else { | ||
| // Found it, so we deserialize it. | ||
| const parsedArray = JSON.parse(json) | ||
| return new Map(parsedArray) | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Saves a session map into the session storage. | ||
| * @param {*} window | ||
| * @param {*} map | ||
| */ | ||
| function saveSessionMap(window, map) { | ||
| const mapArray = Array.from(map) | ||
| const json = JSON.stringify(mapArray) | ||
| window.sessionStorage.setItem(SESSION_KEY, json) | ||
| } | ||
|
|
||
| /** | ||
| * Determine application id. If there is actually an stsApplicationId passed | ||
| * in, then what we get is that. Otherwise, it uses | ||
| * | ||
| * @param {*} window | ||
| * @returns | ||
| */ | ||
| function retrieveApplicationId(window) { | ||
| // Check if it has already been put on the dom. | ||
| if (window.zapAppId) { | ||
| return window.zapAppId | ||
| } | ||
|
|
||
| // If it's not there, get it from the seach query.... | ||
| let search = window.location.search | ||
| if (search[0] === '?') { | ||
| search = search.substring(1) | ||
| } | ||
| let query = querystringParse(search) | ||
|
|
||
| let appId | ||
| if (query[APP_ID_KEY]) { | ||
| appId = query[APP_ID_KEY] | ||
| } else { | ||
| appId = DEFAULT_APP_ID | ||
| } | ||
|
|
||
| // Store it onto the window object for quicker access. | ||
| window.zapAppId = appId | ||
|
|
||
| return appId | ||
| } | ||
|
|
||
| /** | ||
| * Returns the session id after it's been created. This method WILL NOT | ||
| * create one if it hasn't been created yet. Only the | ||
| * initializeSessionIdInBrowser method will create a new session id. | ||
| * @param {*} window | ||
| * @returns | ||
| */ | ||
| export function sessionId(window) { | ||
| let appId = retrieveApplicationId(window) | ||
| let sessionMap = loadSessionMap(window) | ||
| return sessionMap.get(appId) | ||
| } | ||
|
|
||
| /** | ||
| * This is the entry point for the boot file to handle the session object. | ||
| * It mainly needs to figure out if it needs to create a new UUID or not. | ||
| * @param {*} window | ||
| */ | ||
| export function initializeSessionIdInBrowser(window) { | ||
| let sessionMap = loadSessionMap(window) | ||
| let appId = retrieveApplicationId(window) | ||
|
|
||
| // Get the session object, that is keyed by the appId | ||
| let sessionUuid = sessionMap.get(appId) | ||
| if (sessionUuid == null) { | ||
| // This is a whole new appId. Let's create a session object for it. | ||
| sessionMap.set(appId, uuidv4()) | ||
| saveSessionMap(window, sessionMap) | ||
| } | ||
| } |