Use REST eduTurn

app/public/config/config.example.js

@@ -5,15 +5,7 @@ var config =
 	developmentPort  : 3443,
 	productionPort   : 443,
 	multipartyServer : 'letsmeet.no',
-	turnServers      : [
-		{
-			urls : [
-				'turn:turn.example.com:443?transport=tcp'
-			],
-			username   : 'example',
-			credential : 'example'
-		}
-	],
+
 	/**
 	 * If defaultResolution is set, it will override user settings when joining:
 	 * low ~ 320x240

app/src/RoomClient.js

@@ -26,8 +26,7 @@ let ScreenShare;
 
 let Spotlights;
 
-let turnServers,
-	requestTimeout,
+let requestTimeout,
 	transportOptions,
 	lastN,
 	mobileLastN,
@@ -36,7 +35,6 @@ let turnServers,
 if (process.env.NODE_ENV !== 'test')
 {
 	({
-		turnServers,
 		requestTimeout,
 		transportOptions,
 		lastN,
@@ -50,8 +48,7 @@ const logger = new Logger('RoomClient');
 const ROOM_OPTIONS =
 {
 	requestTimeout   : requestTimeout,
-	transportOptions : transportOptions,
-	turnServers      : turnServers
+	transportOptions : transportOptions
 };
 
 const VIDEO_CONSTRAINS =
@@ -1393,27 +1390,6 @@ export default class RoomClient
 
 		this._signalingUrl = getSignalingUrl(this._peerId, roomId);
 
-		this._torrentSupport = WebTorrent.WEBRTC_SUPPORT;
-
-		this._webTorrent = this._torrentSupport && new WebTorrent({
-			tracker : {
-				rtcConfig : {
-					iceServers : ROOM_OPTIONS.turnServers
-				}
-			}
-		});
-
-		this._webTorrent.on('error', (error) =>
-		{
-			logger.error('Filesharing [error:"%o"]', error);
-
-			store.dispatch(requestActions.notify(
-				{
-					type : 'error',
-					text : intl.formatMessage({ id: 'filesharing.error', defaultMessage: 'There was a filesharing error' })
-				}));
-		});
-
 		this._screenSharing = ScreenShare.create(this._device);
 
 		this._signalingSocket = io(this._signalingUrl);
@@ -1645,6 +1621,10 @@ export default class RoomClient
 						
 					case 'roomReady':
 					{
+						const { turnServers } = notification.data;
+
+						this._turnServers = turnServers;
+
 						store.dispatch(roomActions.toggleJoined());
 						store.dispatch(roomActions.setInLobby(false));
 	
@@ -2062,6 +2042,27 @@ export default class RoomClient
 
 		try
 		{
+			this._torrentSupport = WebTorrent.WEBRTC_SUPPORT;
+
+			this._webTorrent = this._torrentSupport && new WebTorrent({
+				tracker : {
+					rtcConfig : {
+						iceServers : this._turnServers
+					}
+				}
+			});
+	
+			this._webTorrent.on('error', (error) =>
+			{
+				logger.error('Filesharing [error:"%o"]', error);
+	
+				store.dispatch(requestActions.notify(
+					{
+						type : 'error',
+						text : intl.formatMessage({ id: 'filesharing.error', defaultMessage: 'There was a filesharing error' })
+					}));
+			});
+
 			this._mediasoupDevice = new mediasoupClient.Device();
 
 			const routerRtpCapabilities =
@@ -2092,7 +2093,7 @@ export default class RoomClient
 						iceParameters,
 						iceCandidates,
 						dtlsParameters,
-						iceServers             : ROOM_OPTIONS.turnServers,
+						iceServers             : this._turnServers,
 						proprietaryConstraints : PC_PROPRIETARY_CONSTRAINTS
 					});
 
@@ -2154,7 +2155,7 @@ export default class RoomClient
 					iceParameters,
 					iceCandidates,
 					dtlsParameters,
-					iceServers : ROOM_OPTIONS.turnServers
+					iceServers : this._turnServers
 				});
 
 			this._recvTransport.on(

server/config/config.example.js

@@ -32,6 +32,19 @@ module.exports =
 		}
 	},
 	*/
+	// URI and key for requesting geoip-based TURN server closest to the client
+	turnAPIKey        : 'examplekey',
+	turnAPIURI        : 'https://example.com/api/turn',
+	// Backup turnservers if REST fails or is not configured
+	backupTurnServers : [
+		{
+			urls : [
+				'turn:turn.example.com:443?transport=tcp'
+			],
+			username   : 'example',
+			credential : 'example'
+		}
+	],
 	redisOptions : {},
 	// session cookie secret
 	cookieSecret : 'T0P-S3cR3t_cook!e',

server/lib/Room.js

@@ -1,4 +1,5 @@
 const EventEmitter = require('events').EventEmitter;
+const axios = require('axios');
 const Logger = require('./Logger');
 const Lobby = require('./Lobby');
 const config = require('../config/config');
@@ -319,7 +320,7 @@ class Room extends EventEmitter
 		}
 	}
 
-	_peerJoining(peer)
+	async _peerJoining(peer)
 	{
 		peer.socket.join(this._roomId);
 
@@ -333,7 +334,46 @@ class Room extends EventEmitter
 		this._peers[peer.id] = peer;
 
 		this._handlePeer(peer);
-		this._notification(peer.socket, 'roomReady');
+
+		let turnServers;
+
+		if ('turnAPIURI' in config)
+		{
+			try
+			{
+				const { data } = await axios.get(
+					config.turnAPIURI,
+					{
+						params : {
+							'uri_schema'  : 'turn',
+							'transport'   : 'tcp',
+							'ip_ver'      : 'ipv4',
+							'servercount' : '2',
+							'api_key'     : config.turnAPIKey,
+							'ip'          : peer.socket.request.connection.remoteAddress
+						}
+					});
+	
+				turnServers = [ {
+					urls       : data.uris,
+					username   : data.username,
+					credential : data.password
+				} ];
+			}
+			catch (error)
+			{
+				if ('backupTurnServers' in config)
+					turnServers = config.backupTurnServers;
+	
+				logger.error('_peerJoining() | error on REST turn [error:"%o"]', error);
+			}
+		}
+		else if ('backupTurnServers' in config)
+		{
+			turnServers = config.backupTurnServers;
+		}
+
+		this._notification(peer.socket, 'roomReady', { turnServers });
 	}
 
 	_handlePeer(peer)

server/package.json

@@ -12,6 +12,7 @@
 	},
 	"dependencies": {
 		"awaitqueue": "^1.0.0",
+		"axios": "^0.19.2",
 		"base-64": "^0.1.0",
 		"body-parser": "^1.19.0",
 		"colors": "^1.4.0",