mirror of https://github.com/OpenVidu/openvidu.git
618 lines
23 KiB
TypeScript
618 lines
23 KiB
TypeScript
/*
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* (C) Copyright 2017-2022 OpenVidu (https://openvidu.io)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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import axios, { AxiosError } from 'axios';
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import { Connection } from './Connection';
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import { Recording } from './Recording';
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import { RecordingProperties } from './RecordingProperties';
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import { Session } from './Session';
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import { SessionProperties } from './SessionProperties';
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/**
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* @hidden
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*/
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interface ObjMap<T> { [s: string]: T; }
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export class OpenVidu {
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private Buffer = require('buffer/').Buffer;
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/**
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* @hidden
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*/
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public host: string;
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/**
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* @hidden
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*/
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public basicAuth: string;
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/**
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* @hidden
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*/
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static readonly API_PATH: string = '/openvidu/api';
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/**
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* @hidden
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*/
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static readonly API_SESSIONS = OpenVidu.API_PATH + '/sessions';
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/**
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* @hidden
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*/
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static readonly API_TOKENS = OpenVidu.API_PATH + '/tokens';
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/**
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* @hidden
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*/
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static readonly API_RECORDINGS: string = OpenVidu.API_PATH + '/recordings';
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/**
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* @hidden
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*/
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static readonly API_RECORDINGS_START: string = OpenVidu.API_RECORDINGS + '/start';
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/**
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* @hidden
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*/
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static readonly API_RECORDINGS_STOP: string = OpenVidu.API_RECORDINGS + '/stop';
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/**
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* Array of active sessions. **This value will remain unchanged since the last time method [[OpenVidu.fetch]]
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* was called**. Exceptions to this rule are:
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*
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* - Calling [[OpenVidu.createSession]] automatically adds the new Session object to the local collection.
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* - Calling [[Session.fetch]] updates that specific Session status
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* - Calling [[Session.close]] automatically removes the Session from the list of active Sessions
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* - Calling [[Session.forceDisconnect]] automatically updates the inner affected connections for that specific Session
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* - Calling [[Session.forceUnpublish]] also automatically updates the inner affected connections for that specific Session
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* - Calling [[Session.updateConnection]] automatically updates the inner affected connection for that specific Session
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* - Calling [[OpenVidu.startRecording]] and [[OpenVidu.stopRecording]] automatically updates the recording status of the Session ([[Session.recording]])
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*
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* To get the array of active sessions with their current actual value, you must call [[OpenVidu.fetch]] before consulting
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* property [[activeSessions]]
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*/
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activeSessions: Session[] = [];
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/**
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* @param hostname URL where your instance of OpenVidu Server is up an running.
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* It must be the full URL (e.g. `https://12.34.56.78:1234/`)
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*
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* @param secret Secret used on OpenVidu Server initialization
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*/
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constructor(private hostname: string, secret: string) {
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this.setHostnameAndPort();
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this.basicAuth = this.getBasicAuth(secret);
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}
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/**
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* Creates an OpenVidu session. The session identifier will be available at property [[Session.sessionId]]
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*
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* @returns A Promise that is resolved to the [[Session]] if success and rejected with an Error object if not.
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* This Error object has as `message` property with a status code carrying a specific meaning
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* (see [REST API](/en/stable/reference-docs/REST-API/#post-recording-start)).
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*
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* This method will never return an Error with status `409`. If a session with the same `customSessionId` already
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* exists in OpenVidu Server, a [[Session.fetch]] operation is performed in the background and the updated Session
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* object is returned.
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*/
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public createSession(properties?: SessionProperties): Promise<Session> {
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return new Promise<Session>((resolve, reject) => {
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const session = new Session(this, properties);
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session.getSessionHttp()
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.then(response => {
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this.activeSessions.push(session);
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resolve(session);
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})
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.catch(error => {
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reject(error);
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});
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});
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}
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public startRecording(sessionId: string): Promise<Recording>;
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public startRecording(sessionId: string, name: string): Promise<Recording>;
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public startRecording(sessionId: string, properties: RecordingProperties): Promise<Recording>;
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/**
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* Starts the recording of a [[Session]]
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*
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* @param sessionId The `sessionId` of the [[Session]] you want to start recording
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* @param name The name you want to give to the video file. You can access this same value in your clients on recording events (`recordingStarted`, `recordingStopped`)
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* @param properties Custom RecordingProperties to apply to this Recording. This will override the global default values set to the Session with [[SessionProperties.defaultRecordingProperties]]
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*
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* @returns A Promise that is resolved to the [[Recording]] if it successfully started (the recording can be stopped with guarantees) and rejected with an Error
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* object if not. This Error object has as `message` property with a status code carrying a specific meaning
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* (see [REST API](/en/stable/reference-docs/REST-API/#post-recording-start)).
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*/
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public startRecording(sessionId: string, param2?: string | RecordingProperties): Promise<Recording> {
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return new Promise<Recording>((resolve, reject) => {
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let data;
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if (param2 != null) {
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if (typeof param2 === 'string') {
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data = JSON.stringify({
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session: sessionId,
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name: param2
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});
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} else {
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const properties: RecordingProperties = param2 as RecordingProperties;
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data = {
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session: sessionId,
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name: properties.name,
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outputMode: properties.outputMode,
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recordingLayout: properties.recordingLayout,
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customLayout: properties.customLayout,
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ignoreFailedStreams: properties.ignoreFailedStreams,
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resolution: properties.resolution,
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frameRate: properties.frameRate,
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hasAudio: properties.hasAudio,
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hasVideo: properties.hasVideo,
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shmSize: properties.shmSize,
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mediaNode: properties.mediaNode
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};
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data = JSON.stringify(data);
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}
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} else {
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data = JSON.stringify({
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session: sessionId,
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name: ''
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});
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}
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axios.post(
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this.host + OpenVidu.API_RECORDINGS_START,
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data,
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{
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headers: {
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'Authorization': this.basicAuth,
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'Content-Type': 'application/json'
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}
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}
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)
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.then(res => {
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if (res.status === 200) {
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// SUCCESS response from openvidu-server (Recording in JSON format). Resolve new Recording
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const r: Recording = new Recording(res.data);
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const activeSession = this.activeSessions.find(s => s.sessionId === r.sessionId);
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if (!!activeSession) {
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activeSession.recording = true;
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} else {
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console.warn("No active session found for sessionId '" + r.sessionId + "'. This instance of OpenVidu Node Client didn't create this session");
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}
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resolve(r);
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} else {
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// ERROR response from openvidu-server. Resolve HTTP status
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reject(res.status);
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}
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}).catch(error => {
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this.handleError(error, reject);
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});
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});
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}
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/**
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* Stops the recording of a [[Session]]
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*
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* @param recordingId The `id` property of the [[Recording]] you want to stop
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*
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* @returns A Promise that is resolved to the [[Recording]] if it successfully stopped and rejected with an Error object if not.
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* This Error object has as `message` property with a status code carrying a specific meaning
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* (see [REST API](/en/stable/reference-docs/REST-API/#post-recording-stop)).
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*/
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public stopRecording(recordingId: string): Promise<Recording> {
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return new Promise<Recording>((resolve, reject) => {
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axios.post(
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this.host + OpenVidu.API_RECORDINGS_STOP + '/' + recordingId,
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undefined,
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{
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headers: {
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'Authorization': this.basicAuth,
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'Content-Type': 'application/x-www-form-urlencoded'
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}
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}
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)
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.then(res => {
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if (res.status === 200) {
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// SUCCESS response from openvidu-server (Recording in JSON format). Resolve new Recording
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const r: Recording = new Recording(res.data);
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const activeSession = this.activeSessions.find(s => s.sessionId === r.sessionId);
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if (!!activeSession) {
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activeSession.recording = false;
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} else {
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console.warn("No active session found for sessionId '" + r.sessionId + "'. This instance of OpenVidu Node Client didn't create this session");
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}
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resolve(r);
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} else {
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// ERROR response from openvidu-server. Resolve HTTP status
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reject(res.status);
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}
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}).catch(error => {
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this.handleError(error, reject);
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});
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});
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}
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/**
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* Gets an existing [[Recording]]
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*
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* @param recordingId The `id` property of the [[Recording]] you want to retrieve
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*
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* @returns A Promise that is resolved to the [[Recording]] if it successfully stopped and rejected with an Error object if not.
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* This Error object has as `message` property with a status code carrying a specific meaning
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* (see [REST API](/en/stable/reference-docs/REST-API/#get-recording)).
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*/
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public getRecording(recordingId: string): Promise<Recording> {
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return new Promise<Recording>((resolve, reject) => {
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axios.get(
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this.host + OpenVidu.API_RECORDINGS + '/' + recordingId,
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{
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headers: {
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'Authorization': this.basicAuth,
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'Content-Type': 'application/x-www-form-urlencoded'
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}
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}
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)
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.then(res => {
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if (res.status === 200) {
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// SUCCESS response from openvidu-server (Recording in JSON format). Resolve new Recording
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resolve(new Recording(res.data));
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} else {
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// ERROR response from openvidu-server. Resolve HTTP status
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reject(res.status);
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}
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}).catch(error => {
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this.handleError(error, reject);
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});
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});
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}
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/**
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* Lists all existing recordings
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*
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* @returns A Promise that is resolved to an array with all existing recordings
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*/
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public listRecordings(): Promise<Recording[]> {
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return new Promise<Recording[]>((resolve, reject) => {
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axios.get(
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this.host + OpenVidu.API_RECORDINGS,
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{
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headers: {
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Authorization: this.basicAuth
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}
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}
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)
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.then(res => {
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if (res.status === 200) {
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// SUCCESS response from openvidu-server (JSON arrays of recordings in JSON format). Resolve list of new recordings
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const recordingArray: Recording[] = [];
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const responseItems = res.data.items;
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for (const item of responseItems) {
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recordingArray.push(new Recording(item));
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}
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// Order recordings by time of creation (newest first)
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recordingArray.sort((r1, r2) => (r1.createdAt < r2.createdAt) ? 1 : ((r2.createdAt < r1.createdAt) ? -1 : 0));
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resolve(recordingArray);
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} else {
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// ERROR response from openvidu-server. Resolve HTTP status
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reject(res.status);
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}
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}).catch(error => {
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this.handleError(error, reject);
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});
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});
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}
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/**
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* Deletes a [[Recording]]. The recording must have status `stopped`, `ready` or `failed`
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*
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* @param recordingId
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*
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* @returns A Promise that is resolved if the Recording was successfully deleted and rejected with an Error object if not.
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* This Error object has as `message` property with a status code carrying a specific meaning
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* (see [REST API](/en/stable/reference-docs/REST-API/#delete-recording)).
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*/
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public deleteRecording(recordingId: string): Promise<Error> {
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return new Promise<Error>((resolve, reject) => {
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axios.delete(
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this.host + OpenVidu.API_RECORDINGS + '/' + recordingId,
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{
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headers: {
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'Authorization': this.basicAuth,
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'Content-Type': 'application/x-www-form-urlencoded'
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}
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}
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)
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.then(res => {
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if (res.status === 204) {
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// SUCCESS response from openvidu-server. Resolve undefined
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resolve(undefined);
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} else {
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// ERROR response from openvidu-server. Resolve HTTP status
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reject(res.status);
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}
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}).catch(error => {
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this.handleError(error, reject);
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});
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});
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}
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/**
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* Updates every property of every active Session with the current status they have in OpenVidu Server.
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* After calling this method you can access the updated array of active sessions in [[activeSessions]]
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*
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* @returns A promise resolved to true if any Session status has changed with respect to the server, or to false if not.
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* This applies to any property or sub-property of any of the sessions locally stored in OpenVidu Node Client
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*/
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public fetch(): Promise<boolean> {
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return new Promise<boolean>((resolve, reject) => {
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axios.get(
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this.host + OpenVidu.API_SESSIONS + '?pendingConnections=true',
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{
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headers: {
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Authorization: this.basicAuth
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}
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}
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)
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.then(res => {
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if (res.status === 200) {
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// Boolean to store if any Session has changed
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let hasChanged = false;
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// 1. Array to store fetched sessionIds and later remove closed ones
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const fetchedSessionIds: string[] = [];
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res.data.content.forEach(jsonSession => {
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const fetchedSession: Session = new Session(this, jsonSession);
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fetchedSessionIds.push(fetchedSession.sessionId);
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let storedSession = this.activeSessions.find(s => s.sessionId === fetchedSession.sessionId);
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if (!!storedSession) {
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// 2. Update existing Session
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const changed: boolean = !storedSession.equalTo(fetchedSession);
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storedSession.resetWithJson(jsonSession);
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console.log("Available session '" + storedSession.sessionId + "' info fetched. Any change: " + changed);
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hasChanged = hasChanged || changed;
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} else {
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// 3. Add new Session
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this.activeSessions.push(fetchedSession);
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console.log("New session '" + fetchedSession.sessionId + "' info fetched");
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hasChanged = true;
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}
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});
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// 4. Remove closed sessions from local collection
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for (var i = this.activeSessions.length - 1; i >= 0; --i) {
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let sessionId = this.activeSessions[i].sessionId;
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if (!fetchedSessionIds.includes(sessionId)) {
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console.log("Removing closed session '" + sessionId + "'");
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hasChanged = true;
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this.activeSessions.splice(i, 1);
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}
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}
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console.log('Active sessions info fetched: ', fetchedSessionIds);
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resolve(hasChanged);
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} else {
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// ERROR response from openvidu-server. Resolve HTTP status
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reject(res.status);
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}
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}).catch(error => {
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this.handleError(error, reject);
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});
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});
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}
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/**
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* @hidden
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* @returns A map paring every existing sessionId with true or false depending on whether it has changed or not
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*/
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fetchWebRtc(): Promise<any> {
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// tslint:disable:no-string-literal
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const addWebRtcStatsToConnections = (connection: Connection, connectionsExtendedInfo: any) => {
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const connectionExtended = connectionsExtendedInfo.find(c => c.connectionId === connection.connectionId);
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if (!!connectionExtended) {
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connection.publishers.forEach(pub => {
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const publisherExtended = connectionExtended.publishers.find(p => p.streamId === pub.streamId);
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pub['webRtc'] = {
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kms: {
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events: publisherExtended.events,
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localCandidate: publisherExtended.localCandidate,
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remoteCandidate: publisherExtended.remoteCandidate,
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clientIceCandidates: publisherExtended.clientIceCandidates,
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serverIceCandidates: publisherExtended.serverIceCandidates,
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webrtcEndpointName: publisherExtended.webrtcEndpointName,
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localSdp: publisherExtended.localSdp,
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remoteSdp: publisherExtended.remoteSdp
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}
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};
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pub['localCandidatePair'] = parseRemoteCandidatePair(pub['webRtc'].kms.remoteCandidate);
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if (!!publisherExtended.serverStats) {
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pub['webRtc'].kms.serverStats = publisherExtended.serverStats;
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}
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});
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const subscriberArray = [];
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connection.subscribers.forEach(sub => {
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const subscriberExtended = connectionExtended.subscribers.find(s => s.streamId === sub);
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const subAux = {};
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// Standard properties
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subAux['streamId'] = sub;
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subAux['publisher'] = subscriberExtended.publisher;
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// WebRtc properties
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subAux['createdAt'] = subscriberExtended.createdAt;
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subAux['webRtc'] = {
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kms: {
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events: subscriberExtended.events,
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localCandidate: subscriberExtended.localCandidate,
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remoteCandidate: subscriberExtended.remoteCandidate,
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clientIceCandidates: subscriberExtended.clientIceCandidates,
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serverIceCandidates: subscriberExtended.serverIceCandidates,
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webrtcEndpointName: subscriberExtended.webrtcEndpointName,
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localSdp: subscriberExtended.localSdp,
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remoteSdp: subscriberExtended.remoteSdp
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}
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};
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subAux['localCandidatePair'] = parseRemoteCandidatePair(subAux['webRtc'].kms.remoteCandidate);
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if (!!subscriberExtended.serverStats) {
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subAux['webRtc'].kms.serverStats = subscriberExtended.serverStats;
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}
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subscriberArray.push(subAux);
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});
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connection.subscribers = subscriberArray;
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}
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};
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const parseRemoteCandidatePair = (candidateStr: string) => {
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if (!candidateStr) {
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return 'ERROR: No remote candidate available';
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}
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const array = candidateStr.split(/\s+/);
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return {
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portNumber: array[5],
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ipAddress: array[4],
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transport: array[2].toLowerCase(),
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candidateType: array[7],
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priority: array[3],
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raw: candidateStr
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};
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};
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return new Promise<{ changes: boolean, sessionChanges: ObjMap<boolean> }>((resolve, reject) => {
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axios.get(
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this.host + OpenVidu.API_SESSIONS + '?webRtcStats=true',
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{
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headers: {
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|
Authorization: this.basicAuth
|
|
}
|
|
}
|
|
)
|
|
.then(res => {
|
|
if (res.status === 200) {
|
|
|
|
// Global changes
|
|
let globalChanges = false;
|
|
// Collection of sessionIds telling whether each one of them has changed or not
|
|
const sessionChanges: ObjMap<boolean> = {};
|
|
|
|
// 1. Array to store fetched sessionIds and later remove closed ones
|
|
const fetchedSessionIds: string[] = [];
|
|
res.data.content.forEach(jsonSession => {
|
|
|
|
const fetchedSession: Session = new Session(this, jsonSession);
|
|
fetchedSession.connections.forEach(connection => {
|
|
addWebRtcStatsToConnections(connection, jsonSession.connections.content);
|
|
});
|
|
fetchedSessionIds.push(fetchedSession.sessionId);
|
|
let storedSession = this.activeSessions.find(s => s.sessionId === fetchedSession.sessionId);
|
|
|
|
if (!!storedSession) {
|
|
|
|
// 2. Update existing Session
|
|
let changed = !storedSession.equalTo(fetchedSession);
|
|
if (!changed) { // Check if server webrtc information has changed in any Publisher object (Session.equalTo does not check Publisher.webRtc auxiliary object)
|
|
fetchedSession.connections.forEach((connection, index1) => {
|
|
for (let index2 = 0; (index2 < connection['publishers'].length && !changed); index2++) {
|
|
changed = changed || JSON.stringify(connection['publishers'][index2]['webRtc']) !== JSON.stringify(storedSession.connections[index1]['publishers'][index2]['webRtc']);
|
|
}
|
|
});
|
|
}
|
|
|
|
storedSession.resetWithJson(jsonSession);
|
|
storedSession.connections.forEach(connection => {
|
|
addWebRtcStatsToConnections(connection, jsonSession.connections.content);
|
|
});
|
|
console.log("Available session '" + storedSession.sessionId + "' info fetched. Any change: " + changed);
|
|
sessionChanges[storedSession.sessionId] = changed;
|
|
globalChanges = globalChanges || changed;
|
|
|
|
} else {
|
|
|
|
// 3. Add new Session
|
|
this.activeSessions.push(fetchedSession);
|
|
console.log("New session '" + fetchedSession.sessionId + "' info fetched");
|
|
sessionChanges[fetchedSession.sessionId] = true;
|
|
globalChanges = true;
|
|
|
|
}
|
|
});
|
|
|
|
// 4. Remove closed sessions from local collection
|
|
for (var i = this.activeSessions.length - 1; i >= 0; --i) {
|
|
let sessionId = this.activeSessions[i].sessionId;
|
|
if (!fetchedSessionIds.includes(sessionId)) {
|
|
console.log("Removing closed session '" + sessionId + "'");
|
|
sessionChanges[sessionId] = true;
|
|
globalChanges = true;
|
|
this.activeSessions.splice(i, 1);
|
|
}
|
|
}
|
|
|
|
console.log('Active sessions info fetched: ', fetchedSessionIds);
|
|
resolve({ changes: globalChanges, sessionChanges });
|
|
} else {
|
|
// ERROR response from openvidu-server. Resolve HTTP status
|
|
reject(res.status);
|
|
}
|
|
}).catch(error => {
|
|
this.handleError(error, reject);
|
|
});
|
|
});
|
|
}
|
|
// tslint:enable:no-string-literal
|
|
|
|
private getBasicAuth(secret: string): string {
|
|
return 'Basic ' + this.Buffer('OPENVIDUAPP:' + secret).toString('base64');
|
|
}
|
|
|
|
private setHostnameAndPort(): void {
|
|
let url: URL;
|
|
try {
|
|
url = new URL(this.hostname);
|
|
} catch (error) {
|
|
throw new Error('URL format incorrect: ' + error);
|
|
}
|
|
this.host = url.protocol + '//' + url.host;
|
|
}
|
|
|
|
/**
|
|
* @hidden
|
|
*/
|
|
handleError(error: AxiosError, reject: (reason?: any) => void) {
|
|
if (error.response) {
|
|
// The request was made and the server responded with a status code (not 2xx)
|
|
reject(error.response.status);
|
|
} else if (error.request) {
|
|
// The request was made but no response was received
|
|
// `error.request` is an instance of XMLHttpRequest in the browser and an instance of
|
|
// http.ClientRequest in node.js
|
|
reject(error.request);
|
|
} else {
|
|
// Something happened in setting up the request that triggered an Error
|
|
reject(error.message);
|
|
}
|
|
}
|
|
|
|
}
|