2018-12-21 17:03:26 +01:00
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import MyWorker from './worker.js';
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2019-04-24 17:44:12 +02:00
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import localforage from 'localforage';
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2018-12-21 17:03:26 +01:00
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import './third_party/broadcastchannel.js';
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import uuid4 from 'uuid/v4';
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import log from './logger.js';
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const sleep = ms => new Promise(res => setTimeout(res, ms));
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2019-02-04 16:06:08 +01:00
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/**
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2019-04-23 11:06:55 +02:00
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* TDLib in a browser
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2019-02-04 16:06:08 +01:00
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*
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2019-04-23 11:06:55 +02:00
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* TDLib can be compiled to WebAssembly or asm.js using Emscripten compiler and used in a browser from JavaScript.
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* This is a convenient wrapper for TDLib in a browser which controls TDLib instance creation, handles interaction
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* with the TDLib and manages a filesystem for persistent TDLib data.
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2019-04-25 15:46:03 +02:00
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* TDLib instance is created in a Web Worker to run it in a separate thread.
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2019-04-23 11:06:55 +02:00
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* TdClient just sends queries to the Web Worker and receive updates and results from it.
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* <br>
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* <br>
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2019-04-26 02:22:39 +02:00
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* Differences from TDLib JSON API:<br>
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2019-04-23 11:06:55 +02:00
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* 1. Added the update <code>updateFatalError error:string = Update;</code> which is sent whenever a TDLib fatal error is encountered.<br>
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2019-04-26 02:22:39 +02:00
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* 2. Added the method <code>setJsLogVerbosityLevel new_verbosity_level:string = Ok;</code>, which allows to change the verbosity level of tdweb logging.<br>
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* 3. Added the possibility to use blobs as input files via constructor <code>inputFileBlob data:<JavaScript blob> = InputFile;</code>.<br>
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* 4. The class <code>filePart</code> contains data as a JavaScript blob instead of a base64-encoded string.<br>
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* 5. Methods <code>getStorageStatistics</code>, <code>getStorageStatisticsFast</code>, <code>optimizeStorage</code>, <code>addProxy</code> are not supported.<br>
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* 6. Added the field <code>idb_key</code> to <code>file</code> object, which contains IndexedDB key in which the file content is stored.<br>
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2019-04-24 21:05:09 +02:00
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* This field is non-empty only for fully downloaded files. IndexedDB database name is chosen during TdClient creation via options.instanceName parameter.<br>
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2019-02-04 16:06:08 +01:00
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* <br>
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*/
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2018-12-21 17:03:26 +01:00
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class TdClient {
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2019-02-04 16:06:08 +01:00
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/**
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2019-04-23 11:06:55 +02:00
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* @callback TdClient~updateCallback
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2019-04-23 14:07:36 +02:00
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* @param {Object} update The update.
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2019-02-04 16:06:08 +01:00
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*/
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/**
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2019-04-23 11:06:55 +02:00
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* Create TdClient.
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* @param {Object} options - The options for TDLib instance creation.
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* @param {TdClient~updateCallback} options.onUpdate - The callback for all incoming updates.
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2019-04-24 13:00:02 +02:00
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* @param {string} [options.instanceName=tdlib] - The name of the TDLib instance. Currently only one instance of TdClient with a given name is allowed. All but one created instances with a given name will be automatically closed. Usually, the newest non-background instance is kept alive. Files will be stored in IndexedDb table with the same name.
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2019-04-23 11:06:55 +02:00
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* @param {boolean} [options.isBackground=false] - Pass true, if the instance is opened from the background.
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2019-04-24 21:05:09 +02:00
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* @param {string} [options.jsLogVerbosityLevel=info] - The initial verbosity level of the JavaScript part of the code (one of 'error', 'warning', 'info', 'log', 'debug').
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2019-04-23 11:06:55 +02:00
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* @param {number} [options.logVerbosityLevel=2] - The initial verbosity level for TDLib internal logging (0-1023).
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2019-04-24 13:00:02 +02:00
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* @param {boolean} [options.useDatabase=true] - Pass false to use TDLib without database and secret chats. It will significantly improve load time, but some functionality will be unavailable.
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* @param {boolean} [options.readOnly=false] - For debug only. Pass true to open TDLib database in read-only mode
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2019-04-24 21:05:09 +02:00
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* @param {string} [options.mode=auto] - For debug only. The type of the TDLib build to use. 'asmjs' for asm.js and 'wasm' for WebAssembly. If mode == 'auto' WebAbassembly will be used if supported by browser, asm.js otherwise.
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2019-02-04 16:06:08 +01:00
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*/
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2018-12-21 17:03:26 +01:00
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constructor(options) {
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2019-02-14 15:25:38 +01:00
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log.setVerbosity(options.jsLogVerbosityLevel);
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2018-12-21 17:03:26 +01:00
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this.worker = new MyWorker();
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var self = this;
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2019-04-24 13:00:02 +02:00
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this.worker.onmessage = e => {
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self.onResponse(e.data);
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2018-12-21 17:03:26 +01:00
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};
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this.query_id = 0;
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this.query_callbacks = new Map();
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2019-02-04 16:06:08 +01:00
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if ('onUpdate' in options) {
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this.onUpdate = options.onUpdate;
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delete options.onUpdate;
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}
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2019-04-24 13:00:02 +02:00
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options.instanceName = options.instanceName || 'tdlib';
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2019-04-24 17:44:12 +02:00
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this.fileManager = new FileManager(options.instanceName);
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2018-12-21 17:03:26 +01:00
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this.worker.postMessage({ '@type': 'init', options: options });
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this.closeOtherClients(options);
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}
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2019-02-04 16:06:08 +01:00
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/**
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2019-04-23 11:06:55 +02:00
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* Send a query to TDLib.
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2019-02-04 16:06:08 +01:00
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*
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2019-04-23 11:06:55 +02:00
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* If the query contains an '@extra' field, the same field will be added into the result.
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2019-02-04 16:06:08 +01:00
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*
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2019-04-23 11:06:55 +02:00
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* @param {Object} query - The query for TDLib. See the [td_api.tl]{@link https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl} scheme or
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* the automatically generated [HTML documentation]{@link https://core.telegram.org/tdlib/docs/td__api_8h.html}
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* for a list of all available TDLib [methods]{@link https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_function.html} and
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* [classes]{@link https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_object.html}.
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* @returns {Promise} Promise object represents the result of the query.
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2019-02-04 16:06:08 +01:00
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*/
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send(query) {
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this.query_id++;
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if (query['@extra']) {
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query['@extra'] = {
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'@old_extra': JSON.parse(JSON.stringify(query.extra)),
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query_id: this.query_id
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};
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} else {
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query['@extra'] = {
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query_id: this.query_id
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};
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}
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2019-02-14 15:25:38 +01:00
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if (query['@type'] === 'setJsLogVerbosityLevel') {
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log.setVerbosity(query.new_verbosity_level);
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2019-02-04 16:06:08 +01:00
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}
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2019-02-14 15:25:38 +01:00
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log.debug('send to worker: ', query);
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2019-04-24 13:00:02 +02:00
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let res = new Promise((resolve, reject) => {
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2019-02-04 16:06:08 +01:00
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this.query_callbacks.set(this.query_id, [resolve, reject]);
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});
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2019-04-24 13:00:02 +02:00
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this.externalPostMessage(query);
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return res;
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}
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/** @private */
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externalPostMessage(query) {
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let unsupportedMethods = [
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'getStorageStatistics',
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'getStorageStatisticsFast',
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'optimizeStorage',
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'addProxy',
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'init',
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'start'
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];
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if (unsupportedMethods.includes(query['@type'])) {
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this.onResponse({
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'@type': 'error',
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'@extra': query['@extra'],
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code: 400,
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2019-04-24 21:05:09 +02:00
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message: "Method '" + query['@type'] + "' is not supported"
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2019-04-24 13:00:02 +02:00
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});
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return;
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}
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2019-04-24 17:44:12 +02:00
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if (query['@type'] === 'readFile') {
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this.readFile(query);
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return;
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}
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2019-04-24 13:00:02 +02:00
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this.worker.postMessage(query);
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}
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2019-04-24 17:44:12 +02:00
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/** @private */
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async readFile(query) {
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let response = await this.fileManager.readFile(query);
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this.onResponse(response);
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}
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2019-04-24 13:00:02 +02:00
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/** @private */
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onResponse(response) {
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log.debug(
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'receive from worker: ',
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JSON.parse(
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JSON.stringify(response, (key, value) => {
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if (key === 'arr') {
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return undefined;
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}
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return value;
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})
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)
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);
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2019-04-24 17:44:12 +02:00
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// for FileManager
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response = this.prepareResponse(response);
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2019-04-24 13:00:02 +02:00
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if ('@extra' in response) {
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var query_id = response['@extra'].query_id;
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var [resolve, reject] = this.query_callbacks.get(query_id);
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this.query_callbacks.delete(query_id);
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if ('@old_extra' in response['@extra']) {
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response['@extra'] = response['@extra']['@old_extra'];
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}
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if (resolve) {
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if (response['@type'] === 'error') {
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reject(response);
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} else {
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resolve(response);
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}
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}
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} else {
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if (response['@type'] === 'inited') {
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this.onInited();
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return;
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}
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2019-04-25 20:50:26 +02:00
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if (response['@type'] === 'fsInited') {
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this.onFsInited();
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return;
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}
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2019-04-24 13:00:02 +02:00
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if (
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response['@type'] === 'updateAuthorizationState' &&
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response.authorization_state['@type'] === 'authorizationStateClosed'
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) {
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this.onClosed();
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}
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this.onUpdate(response);
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}
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2019-02-04 16:06:08 +01:00
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}
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2019-04-24 17:44:12 +02:00
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/** @private */
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prepareFile(file) {
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return this.fileManager.registerFile(file);
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}
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/** @private */
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prepareResponse(response) {
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if (response['@type'] === 'file') {
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return this.prepareFile(response);
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}
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for (var key in response) {
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let field = response[key];
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if (field && typeof field === 'object') {
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response[key] = this.prepareResponse(field);
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}
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}
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return response;
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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onBroadcastMessage(e) {
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var message = e.data;
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2019-04-25 20:50:26 +02:00
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if (message.uid === this.uid) {
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log.info('ignore self broadcast message: ', message);
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return;
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}
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2018-12-21 17:03:26 +01:00
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log.info('got broadcast message: ', message);
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if (message.isBackground && !this.isBackground) {
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// continue
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} else if (
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(!message.isBackground && this.isBackground) ||
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message.timestamp > this.timestamp
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) {
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this.close();
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return;
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}
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if (message.state === 'closed') {
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this.waitSet.delete(message.uid);
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if (this.waitSet.size === 0) {
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log.info('onWaitSetEmpty');
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this.onWaitSetEmpty();
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this.onWaitSetEmpty = () => {};
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}
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} else {
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this.waitSet.add(message.uid);
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if (message.state !== 'closing') {
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this.postState();
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}
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}
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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postState() {
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let state = {
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id: this.uid,
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state: this.state,
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timestamp: this.timestamp,
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isBackground: this.isBackground
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};
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log.info('Post state: ', state);
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this.channel.postMessage(state);
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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onWaitSetEmpty() {
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// nop
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}
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2019-04-25 20:50:26 +02:00
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/** @private */
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onFsInited() {
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this.fileManager.init();
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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onInited() {
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this.isInited = true;
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this.doSendStart();
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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sendStart() {
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this.wantSendStart = true;
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this.doSendStart();
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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doSendStart() {
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if (!this.isInited || !this.wantSendStart || this.state !== 'start') {
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return;
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}
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this.wantSendStart = false;
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this.state = 'active';
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let query = { '@type': 'start' };
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log.info('send to worker: ', query);
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this.worker.postMessage(query);
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
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2018-12-21 17:03:26 +01:00
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onClosed() {
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this.isClosing = true;
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this.worker.terminate();
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log.info('worker is terminated');
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this.state = 'closed';
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this.postState();
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}
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2019-02-04 16:06:08 +01:00
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/** @private */
|
2018-12-21 17:03:26 +01:00
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close() {
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if (this.isClosing) {
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return;
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}
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this.isClosing = true;
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log.info('close state: ', this.state);
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if (this.state === 'start') {
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this.onClosed();
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this.onUpdate({
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'@type': 'updateAuthorizationState',
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authorization_state: {
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'@type': 'authorizationStateClosed'
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}
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});
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return;
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}
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let query = { '@type': 'close' };
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log.info('send to worker: ', query);
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this.worker.postMessage(query);
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this.state = 'closing';
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this.postState();
|
|
|
|
}
|
|
|
|
|
2019-02-04 16:06:08 +01:00
|
|
|
/** @private */
|
2018-12-21 17:03:26 +01:00
|
|
|
async closeOtherClients(options) {
|
|
|
|
this.uid = uuid4();
|
|
|
|
this.state = 'start';
|
|
|
|
this.isBackground = !!options.isBackground;
|
|
|
|
this.timestamp = Date.now();
|
|
|
|
this.waitSet = new Set();
|
|
|
|
|
|
|
|
log.info('close other clients');
|
2019-04-24 13:00:02 +02:00
|
|
|
this.channel = new BroadcastChannel(options.instanceName);
|
2018-12-21 17:03:26 +01:00
|
|
|
|
|
|
|
this.postState();
|
|
|
|
|
|
|
|
var self = this;
|
|
|
|
this.channel.onmessage = message => {
|
|
|
|
self.onBroadcastMessage(message);
|
|
|
|
};
|
|
|
|
|
|
|
|
await sleep(300);
|
|
|
|
if (this.waitSet.size !== 0) {
|
|
|
|
await new Promise(resolve => {
|
|
|
|
self.onWaitSetEmpty = resolve;
|
|
|
|
});
|
|
|
|
}
|
|
|
|
this.sendStart();
|
|
|
|
}
|
|
|
|
|
2019-02-04 16:06:08 +01:00
|
|
|
/** @private */
|
2019-04-24 21:05:09 +02:00
|
|
|
onUpdate(update) {
|
2018-12-21 17:03:26 +01:00
|
|
|
log.info('ignore onUpdate');
|
|
|
|
//nop
|
|
|
|
}
|
|
|
|
}
|
2019-04-24 17:44:12 +02:00
|
|
|
|
|
|
|
/** @private */
|
|
|
|
class FileManager {
|
|
|
|
constructor(instanceName) {
|
2019-04-25 20:50:26 +02:00
|
|
|
this.instanceName = instanceName;
|
2019-04-24 17:44:12 +02:00
|
|
|
this.cache = new Map();
|
2019-04-25 20:50:26 +02:00
|
|
|
this.pending = [];
|
|
|
|
this.transaction_id = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
init() {
|
|
|
|
let self = this;
|
2019-04-24 17:44:12 +02:00
|
|
|
this.idb = new Promise((resolve, reject) => {
|
2019-04-25 20:50:26 +02:00
|
|
|
const request = window.indexedDB.open(self.instanceName);
|
2019-04-24 17:44:12 +02:00
|
|
|
request.onsuccess = () => resolve(request.result);
|
|
|
|
request.onerror = () => reject(request.error);
|
|
|
|
});
|
|
|
|
//this.store = localforage.createInstance({
|
|
|
|
//name: instanceName
|
|
|
|
//});
|
2019-04-25 20:50:26 +02:00
|
|
|
this.isInited = true;
|
2019-04-24 17:44:12 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
registerFile(file) {
|
|
|
|
if (file.idb_key || file.arr) {
|
|
|
|
file.is_downloading_completed = true;
|
|
|
|
var info = {};
|
|
|
|
let cached_info = this.cache.get(file.id);
|
|
|
|
if (cached_info !== undefined) {
|
|
|
|
info = cached_info;
|
|
|
|
} else {
|
|
|
|
this.cache.set(file.id, info);
|
|
|
|
}
|
|
|
|
if (file.idb_key) {
|
|
|
|
info.idb_key = file.idb_key;
|
|
|
|
}
|
|
|
|
if (file.arr) {
|
|
|
|
info.arr = file.arr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return file;
|
|
|
|
}
|
|
|
|
|
|
|
|
async flushLoad() {
|
|
|
|
let pending = this.pending;
|
|
|
|
this.pending = [];
|
|
|
|
let idb = await this.idb;
|
2019-04-25 20:50:26 +02:00
|
|
|
let transaction_id = this.transaction_id++;
|
2019-04-24 17:44:12 +02:00
|
|
|
let read = idb
|
|
|
|
.transaction(['keyvaluepairs'], 'readonly')
|
|
|
|
.objectStore('keyvaluepairs');
|
|
|
|
log.debug('Load group of files from idb', pending.length);
|
|
|
|
for (const query of pending) {
|
|
|
|
const request = read.get(query.key);
|
|
|
|
request.onsuccess = event => {
|
|
|
|
const blob = event.target.result;
|
|
|
|
if (blob) {
|
2019-04-25 20:50:26 +02:00
|
|
|
query.resolve({ data: blob, transaction_id: transaction_id });
|
2019-04-24 17:44:12 +02:00
|
|
|
} else {
|
|
|
|
query.reject();
|
|
|
|
}
|
|
|
|
};
|
|
|
|
request.onerror = query.reject;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
load(key, resolve, reject) {
|
|
|
|
if (this.pending.length === 0) {
|
|
|
|
let self = this;
|
|
|
|
setTimeout(() => {
|
|
|
|
self.flushLoad();
|
|
|
|
}, 1);
|
|
|
|
}
|
|
|
|
this.pending.push({ key: key, resolve: resolve, reject: reject });
|
|
|
|
}
|
|
|
|
|
|
|
|
async doLoad(info) {
|
|
|
|
if (info.arr) {
|
2019-04-25 20:50:26 +02:00
|
|
|
return { data: new Blob([info.arr]), transaction_id: -1 };
|
2019-04-24 17:44:12 +02:00
|
|
|
}
|
|
|
|
let idb_key = info.idb_key;
|
|
|
|
let self = this;
|
|
|
|
//return this.store.getItem(idb_key);
|
|
|
|
return await new Promise((resolve, reject) => {
|
|
|
|
self.load(idb_key, resolve, reject);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
async readFile(query) {
|
|
|
|
try {
|
2019-04-25 20:50:26 +02:00
|
|
|
if (!this.isInited) {
|
|
|
|
throw new Error('FileManager is not inited');
|
|
|
|
}
|
2019-04-24 17:44:12 +02:00
|
|
|
let info = this.cache.get(query.file_id);
|
|
|
|
if (!info) {
|
|
|
|
throw new Error('File is not loaded');
|
|
|
|
}
|
2019-04-25 20:50:26 +02:00
|
|
|
let response = await this.doLoad(info);
|
2019-04-24 17:44:12 +02:00
|
|
|
return {
|
2019-04-25 20:50:26 +02:00
|
|
|
'@type': 'blob',
|
2019-04-24 17:44:12 +02:00
|
|
|
'@extra': query['@extra'],
|
2019-04-25 20:50:26 +02:00
|
|
|
data: response.data,
|
|
|
|
transaction_id: response.transaction_id
|
2019-04-24 17:44:12 +02:00
|
|
|
};
|
|
|
|
} catch (e) {
|
|
|
|
return {
|
|
|
|
'@type': 'error',
|
|
|
|
'@extra': query['@extra'],
|
|
|
|
code: 400,
|
|
|
|
message: e
|
|
|
|
};
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-21 17:03:26 +01:00
|
|
|
export default TdClient;
|