internals.socket.on('connect', function() {
- console.log("Connected to signaling server, group: ", data.currentUrl);
+ console.log('Connected to signaling server, group: ', data.currentUrl);
internals.socket.emit('join', {
- 'url': data.currentUrl,
+ room: data.currentUrl,
});
});
internals.socket.on('addPeer', function(data) {
- console.log(data);
- Peers.add(data.peer_id, internals.tada);
- const peerId = data.peer_id;
+ Peers.add(data.peerId, internals.tada);
+ const peerId = data.peerId;
- const peerConn = new RTCPeerConnection(
- {"iceServers": internals.kIceServers},
- {"optional": [{"DtlsSrtpKeyAgreement": true}]}
+ const peerConnection = new RTCPeerConnection(
+ { iceServers: internals.kIceServers },
+ { optional: [{ DtlsSrtpKeyAgreement: true }] }
);
- internals.peers[peerId] = peerConn;
+ internals.peers[peerId] = peerConnection;
+ mediaStream.getTracks().forEach((track) => {
+ peerConnection.addTrack(track, localStream);
+ });
- peerConn.onicecandidate = (event) => {
+ peerConnection.onicecandidate = (event) => {
if (event.candidate) {
internals.socket.emit('relayICECandidate', {
- 'peer_id': peerId,
- 'ice_candidate': {
- 'sdpMLineIndex': event.candidate.sdpMLineIndex,
- 'candidate': event.candidate.candidate
- }
+ peerId: peerId,
+ candidate: event.candidate
});
}
}
- peerConn.onaddstream = (stream) => {
- console.log(`Received stream for peer ${peerId}`);
- console.log(stream);
- }
+ const remoteStream = new MediaStream();
+ peerConnection.ontrack = (event) => {
+ remoteStream.addTrack(event.track);
+ const remoteAudioElement = new Audio();
+ remoteAudioElement.srcObject = remoteStream;
+ remoteAudioElement.play();
+ };
+
+ peerConnection.onnegotiationneeded = async () => {
+ console.log("Creating RTC offer to ", peerId);
+ const offer = await peerConnection.createOffer();
+ await peerConnection.setLocalDescription(offer);
+
+ // Emit the offer to the peer
+ socket.emit('relayOffer', { offer, peerId });
+ };
- peerConn.addStream(mediaStream);
-
- if (data.should_create_offer) {
- console.log("Creating RTC offer to ", peerId);
- peerConn.createOffer((local_description) => {
- console.log("Local offer description is: ", local_description);
- peerConn.setLocalDescription(local_description, () => {
- internals.socket.emit('relaySessionDescription', {
- 'peer_id': peerId,
- 'session_description': local_description
- });
-
- console.log("Offer setLocalDescription succeeded");
- }, () => { console.log("Offer setLocalDescription failed!"); }
- );
- },
- (error) => { console.log("Error sending offer: ", error) }
- );
- }
console.log(`There are now ${Peers.count()} participants`);
});
+ socket.on('offerReceived', async (data) => {
+
+ const peerConnection = internals.peers[data.peerId];
+
+ const offer = new RTCSessionDescription(data.offer);
+ await peerConnection.setRemoteDescription(offer);
+
+ const answer = await peerConnection.createAnswer();
+ await peerConnection.setLocalDescription(answer);
+
+ // Send the answer to the peer
+ socket.emit('relayAnswer', { answer, peerId: data.peerId });
+ });
+
+ socket.on('answerReceived', async (data) => {
+
+ const peerConnection = internals.peers[data.peerId];
+ const answer = new RTCSessionDescription(data.answer);
+ await peerConnection.setRemoteDescription(answer);
+ });
+
+ socket.on('ICECandidateReceived', async (data) => {
+
+ const peerConnection = internals.peers[data.peerId];
+ const candidate = new RTCIceCandidate(data.candidate);
+ await peerConnection.addIceCandidate(candidate);
+ });
+
+
internals.socket.on('removePeer', function() {
+ delete internals.peers[data.peerId];
Peers.remove('id-'+(Peers.count() - 1)); // This is only for testing, don't use count to remove ids.
console.log(`There are now ${Peers.count()} participants`);
});
export function addPeer(peerId, shouldCreateOffer) {
- return {
- peer_id: peerId,
- should_create_offer: shouldCreateOffer,
- }
+ return {
+ peerId,
+ shouldCreateOffer,
+ }
}
export function removePeer(peerId) {
return {
- peer_id: peerId,
+ peerId,
}
}
export function SessionDescriptionReceived(peerId, sessionDescription) {
return {
- peer_id: peerId,
- session_description: sessionDescription,
+ peerId,
+ sessionDescription,
+ }
+}
+
+export function ICECandidateReceived(peerId, candidate) {
+ return {
+ peerId,
+ candidate
+ }
+}
+
+export function offerReceived(peerId, offer) {
+ return {
+ peerId,
+ offer
}
}
-export function ICECandidateReceived(peerId, ICECandidate) {
+export function answerReceived(peerId, answer) {
return {
- peer_id: peerId,
- ice_candidate: ICECandidate,
+ peerId,
+ answer
}
}
REMOVE_PEER: 'removePeer',
RELAY_SESSION_DESCRIPTION: 'relaySessionDescription',
RELAY_ICE_CANDIDATE: 'relayICECandidate',
+ OFFER_RECEIVED: 'offerReceived',
+ ANSWER_RECEIVED: 'answerReceived',
ICE_CANDIDATE_RECEIVED: 'ICECandidateReceived',
SESSION_DESCRIPTION_RECEIVED: 'SessionDescriptionReceived',
};
const server = new Server(port);
console.log(`Listening on port ${port}`);
-const sockets = {};
+const rooms = {};
server.on('connection', (socket) => {
- sockets[socket.id] = socket;
const me = socket.id;
console.log(`[CONNECT] New client connected with ID ${me}`);
socket.on('join', async (data) => {
- socket.join(data.url);
- const sockets = await server.in(data.url).fetchSockets()
- console.log(sockets);
- sockets.forEach((peer) => {
- if (peer.id !== me) {
- peer.emit(events.types.ADD_PEER, events.addPeer(me, false));
- socket.emit(events.types.ADD_PEER, events.addPeer(peer.id, true));
- }
- });
- console.log(`[CONNECT] Client ${me} added to room ${data.url}`);
+ const room = data.room;
+ socket.join(room);
+
+ if (!rooms[room]) {
+ rooms[room] = {};
+ }
+
+ rooms[room].push(socket.id);
+
+ const sockets = await server.in(data.url).fetchSockets()
+ sockets.forEach((peer) => {
+ if (peer.id !== me) {
+ peer.emit(events.types.ADD_PEER, events.addPeer(me, false));
+ socket.emit(events.types.ADD_PEER, events.addPeer(peer.id, true));
+ }
+ });
+ console.log(`[CONNECT] Client ${me} added to room ${data.url}`);
});
socket.on('disconnecting', () => {
- const rooms = Object.keys(socket.rooms);
- rooms.forEach(room => server.to(room).emit(events.types.REMOVE_PEER, events.removePeer(me)));
- console.log(`[DISCONNECT] Client ${me} has disconnected and has been removed from all rooms`);
+ for (const room in rooms) {
+ if (rooms[room].includes(me)) {
+ rooms[room] = rooms[room].filter(id => id !== me);
+ socket.to(room).emit(events.types.REMOVE_PEER, events.removePeer(me));
+ if (rooms[room].length === 0) {
+ delete rooms[room];
+ }
+ }
+ }
+ console.log(`[DISCONNECT] Client ${me} has disconnected and has been removed from all rooms`);
});
socket.on('relayICECandidate', async (data) => {
- const sockets = await server.in(data.url).fetchSockets()
- console.log(sockets);
- sockets.forEach((peer) => {
- peer.emit(events.types.ICE_CANDIDATE_RECEIVED, events.ICECandidateReceived(me, data.ice_candidate))
- });
+ socket.to(data.peerId).emit(events.types.ICE_CANDIDATE_RECEIVED, events.ICECandidateReceived(me, data.candidate))
console.log(`[RELAY_ICE_CANDIDATE] ICE candidate for client ${me} has been relayed to all peers`);
});
- socket.on('relaySessionDescription', async (data) => {
- const sockets = await server.in(data.url).fetchSockets()
- console.log(sockets);
- sockets.forEach((peer) => {
- peer.emit(events.types.SESSION_DESCRIPTION_RECEIVED, events.SessionDescriptionReceived(me, data.session_description))
- });
+ socket.on('relayOffer', async (data) => {
+
+ socket.to(data.peerId).emit(events.types.OFFER_RECEIVED, events.offerReceived(me, data.offer))
+ console.log(`[RELAY_OFFER] ICE offer for client ${me} has been relayed to all peers`);
+ });
+
+ socket.on('relayAnswer', async (data) => {
- console.log(`[RELAY_SESSION_DESCRIPTION] Session description for client ${me} has been relayed to all peers`);
+ socket.to(data.peerId).emit(events.types.ANSWER_RECEIVED, events.answerReceived(me, data.answer))
+ console.log(`[RELAY_OFFER] ICE offer for client ${me} has been relayed to all peers`);
});
});