bigbluebutton-Github/bigbluebutton-html5/imports/utils/safari-webrtc.js

90 lines
2.6 KiB
JavaScript

import { fetchWebRTCMappedStunTurnServers } from '/imports/utils/fetchStunTurnServers';
import Auth from '/imports/ui/services/auth';
import { Session } from 'meteor/session';
const defaultIceServersList = [
{ urls: 'stun:stun.l.google.com:19302' },
{ urls: 'stun:stun1.l.google.com:19302' },
{ urls: 'stun:stun2.l.google.com:19302' },
{ urls: 'stun:stun3.l.google.com:19302' },
{ urls: 'stun:stun4.l.google.com:19302' },
{ urls: 'stun:stun.ekiga.net' },
{ urls: 'stun:stun.ideasip.com' },
{ urls: 'stun:stun.schlund.de' },
{ urls: 'stun:stun.stunprotocol.org:3478' },
{ urls: 'stun:stun.voiparound.com' },
{ urls: 'stun:stun.voipbuster.com' },
{ urls: 'stun:stun.voipstunt.com' },
{ urls: 'stun:stun.voxgratia.org' },
{ urls: 'stun:stun.services.mozilla.com' },
];
const getSessionToken = () => Auth.sessionToken;
export async function getIceServersList() {
try {
const iceServers = await fetchWebRTCMappedStunTurnServers(getSessionToken());
return iceServers || defaultIceServersList;
} catch (error) {
return defaultIceServersList;
}
}
export function canGenerateIceCandidates() {
return new Promise((resolve, reject) => {
if (Session.get('canGenerateIceCandidates')) {
resolve();
return;
}
getIceServersList().catch((e) => {
reject();
}).then((iceServersReceived) => {
const pc = new RTCPeerConnection({ iceServers: iceServersReceived });
let countIceCandidates = 0;
try { pc.addTransceiver('audio'); } catch (e) { }
pc.onicecandidate = function (e) {
if (countIceCandidates) return;
if (e.candidate) {
countIceCandidates++;
Session.set('canGenerateIceCandidates', true);
resolve();
}
};
pc.onicegatheringstatechange = function (e) {
if (e.currentTarget.iceGatheringState == 'complete' && countIceCandidates == 0) reject();
};
setTimeout(() => {
pc.close();
if (!countIceCandidates) reject();
}, 5000);
const p = pc.createOffer({ offerToReceiveVideo: true });
p.then((answer) => { pc.setLocalDescription(answer); });
});
});
}
export function tryGenerateIceCandidates() {
return new Promise((resolve, reject) => {
canGenerateIceCandidates().then((ok) => {
resolve();
}).catch((e) => {
navigator.mediaDevices.getUserMedia({ audio: true, video: false }).then((stream) => {
canGenerateIceCandidates().then((ok) => {
resolve();
}).catch((e) => {
reject();
});
}).catch((e) => {
reject();
});
});
});
}