X-Git-Url: https://git.r.bdr.sh/rbdr/junction/blobdiff_plain/80172072ed99b14e3d5b435b097888a4621f78bc..8a872a93634a516782d05934188ba2db3849fec9:/extension/content_script.js?ds=sidebyside diff --git a/extension/content_script.js b/extension/content_script.js index 279c52d..8ca721a 100644 --- a/extension/content_script.js +++ b/extension/content_script.js @@ -4,11 +4,14 @@ import Media from './media'; const internals = { - kSocketUrl: 'ws://localhost:8000', + kSocketUrl: 'https://junction.tranquil.services', + kIceServers: [ + {url:"stun:stun.l.google.com:19302"} + ], port: null, socket: null, - peers: 0, + peers: {}, onMessage(message) { internals[message.action](message.data); @@ -19,7 +22,7 @@ const internals = { internals.tada = data.tada; // Keeping for fun try { - await Media.start(); + const mediaStream = await Media.start(); internals.socket = io(internals.kSocketUrl, { transports: ['websocket'] @@ -37,9 +40,9 @@ const internals = { 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, }); }); @@ -50,13 +53,80 @@ const internals = { internals.socket.on('addPeer', function(data) { - console.log(data); - Peers.add('id-'+Peers.count(), internals.tada); + Peers.add(data.peerId, internals.tada); + const peerId = data.peerId; + + const peerConnection = new RTCPeerConnection( + { iceServers: internals.kIceServers }, + { optional: [{ DtlsSrtpKeyAgreement: true }] } + ); + + internals.peers[peerId] = peerConnection; + mediaStream.getTracks().forEach((track) => { + peerConnection.addTrack(track, localStream); + }); + + peerConnection.onicecandidate = (event) => { + if (event.candidate) { + internals.socket.emit('relayICECandidate', { + peerId: peerId, + candidate: event.candidate + }); + } + } + + 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 }); + }; + 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`); });