X-Git-Url: https://git.kengrimes.com/?p=henge%2Fkiak.git;a=blobdiff_plain;f=host.js;fp=host.js;h=0000000000000000000000000000000000000000;hp=1e473809d61f4b8a6521f50d8d13286d936b7db5;hb=552b28b4fc1ed42e3362c1826acf94c349425b1c;hpb=a7e6c36b91dd1a36021f7459200436b3cb31d756 diff --git a/host.js b/host.js deleted file mode 100644 index 1e47380..0000000 --- a/host.js +++ /dev/null @@ -1,222 +0,0 @@ -document.title = "Strapp.io Host" - - -const conf = {"iceServers": [{ "urls": "stun:stun.1.google.com:19302" }] } -const clients = new Map([]) -const iceCandidates = [] -let dataChannel -let screenStream /* TODO: Remove if can access localStreams */ -let tracks = [] -let hpk - -/* TODO: duplicate in both client.js and host.jhs */ -function getPublicKey() { - return new Promise( (resolve, reject) => { - /* Check local storage for public key */ - if (!window.localStorage.getItem('public-key')) { - console.log('public key is undefined') - /* If doesn't exist, generate public and private key pair, store in - local storage */ - crypto.subtle.generateKey( - { name:'RSA-OAEP', - modulusLength: 2048, - publicExponent: new Uint8Array([0x01, 0x00, 0x01]), - hash: {name: "SHA-256"} - }, - true, - ['encrypt', 'decrypt'] - ).then((keyPair) => { - /* TODO: Do we need to store the private key as well? */ - crypto.subtle.exportKey('jwk', keyPair.publicKey) - .then((exportedKey) => { - window.localStorage.setItem('publicKey', exportedKey) - console.log('public key is' + window.localStorage.getItem('publicKey')) - resolve(exportedKey) - }) - - }) - } - else { - resolve(window.localStorage.getItem('publicKey')) - } - }) -} - -function sendClientICE(clientPubKey, hostPubKey, iceCandidate) { - console.log('Host: Allocating ice candidate for client') - console.log(iceCandidate) - iceCandidates.push(JSON.stringify({ - cmd: "< ice pubKey", - ice: iceCandidate, - hostPubKey: hostPubKey, /* TODO: do we need to send this? */ - clientPubKey: clientPubKey, - iceState: "a" - })) -} - -function handleNewClientConnection(offer) { - /* New Client Connection*/ - hpc = new RTCPeerConnection(conf) - //console.log(offer) - clients.set(offer.pubKey, hpc) - console.log(offer.sdp) - hpc.setRemoteDescription(offer.sdp) - .then(() => { - hpc.createAnswer().then((answer) => { - return hpc.setLocalDescription(answer) - }) - .then(() => { - - hpc.onicecandidate = (event) => { - if (event.candidate) { - sendClientICE(offer.pubKey, hpk.n, event.candidate) - } - else { - console.log('Host: Finished allocating ICE candidates') - } - } - console.log('Host: Sending answer to Client ') - wsock.send(JSON.stringify({ - cmd: '< sdp pubKey', - sdp: hpc.localDescription, - hostPubKey: hpk.n, - clientPubKey: offer.pubKey - })) - - }).catch((err) => { - console.log(`error in host answer ${err}`) - }) - }) - hpc.oniceconnectionstatechange = () => { - console.log('iceConnectionState = ' + hpc.iceConnectionState) - } - hpc.ondatachannel = (evt) => { - dataChannel = evt.channel - dataChannel.onmessage = (msg) => { - let clientMessage = JSON.parse(msg.data) - console.log(`client message is ${clientMessage}`) - hpc.setRemoteDescription(clientMessage.sdp).then(() => { - console.log('should be streaming now') - }) - } - dataChannel.onopen = () => { - /* If !screenStream, gUM */ - screenStream.getTracks().forEach( (track) => { - hpc.addTrack(track, screenStream) - }) - console.log(hpc.getSenders()) - /* Create offer */ - hpc.createOffer().then((offer) => { - return hpc.setLocalDescription(offer) - }).then( () => { - dataChannel.send(JSON.stringify({ - "cmd": "< screen dataChannel", - "sdp": hpc.localDescription, - "pubKey": hpc['hpk'].n - })) - }) - } - } - hpc.onnegotiationneeded = () => { - console.log('negotiation needed') - } - -} - -function handleNewIceSubmission(msg) { - console.log('Host: Adding new ice candidate') - const hpc = clients.get(msg.pubKey) - let candidate = new RTCIceCandidate(msg.ice) - hpc.addIceCandidate(candidate) -} - -function handleIceRequest(msg) { - console.log('Host: Handling ice candidate request') - console.log(iceCandidates) - const hpc = clients.get(msg.pubKey) - const iceCandidate = iceCandidates.pop() - if (iceCandidate !== undefined) { - wsock.send(iceCandidate) - } else { - if (hpc.iceGatheringState.localeCompare('gathering') === 0) { - wsock.send(`{"cmd" : "< ice pubKey", "clientPubKey":"${msg.pubKey}", "iceState": "g"}`) - } - else if (hpc.iceGatheringState.localeCompare('complete') === 0) { - wsock.send(`{"cmd" : "< ice pubKey", "clientPubKey":"${msg.pubKey}", "iceState": "c"}`) - } - - } - -} -if ("WebSocket" in window) { - document.addEventListener('DOMContentLoaded', (event) => { - document.body.innerHTML = '
Choose options for client
' - navigator.mediaDevices.getUserMedia({ - video : { mediaSource: "screen", - width: {max: '1920'}, - height: {max: '1080'}, - frameRate: {max: '10'}} }) - .then(function(mediaStream) { - let video = document.querySelector('video') - screenStream = mediaStream - console.log(mediaStream) - video.srcObject = mediaStream - console.log('Grabbed media') - video.onloadedmetadata = function(e) { - console.log(e) - video.play() - } - }) - .catch(function(err) { - document.body.innerHTML = 'Help me help you. Reload the page and allow screen sharing!' - console.log(err); - }); // always check for errors at the end. - - getPublicKey() - .then((hpkVal) => { - hpk = hpkVal - }) - wsock = new WebSocket(`${_strapp_protocol}://${window.location.hostname}:${_strapp_port}`) - wsock.onopen = () => { - console.log(`Strapped to ${_strapp_protocol}://${window.location.hostname}:${_strapp_port}`) - } - - wsock.onmessage = (serverMsg) => { - /* msg is either offer or ice candidate or ice candidate request*/ - - /* What if data null? */ - console.log(`serverMsg = ${serverMsg.data}`) - let msg = JSON.parse(serverMsg.data) - - const clientID = msg.pubKey - - /* TODO: redo this trash */ - if (clients.has(clientID)) { - if (msg.ice) { - handleNewIceSubmission(msg) - } else if (msg.sdp) { - //handleRepeatedOffer - } else { - handleIceRequest(msg) - } - } - else { - if (msg.ice) { - console.log('Host: Client that doesnt exist is sending ice submissions') - } else if (msg.sdp) { - handleNewClientConnection(msg) - } else { - console.log('Host: Client that doesnt exist is sending ice requests') - } - } - } - - - - }) -} -else { - document.addEventListener('DOMContentLoaded', () => { - document.body.innerHTML = 'Websockets not supported in your browser' - }) -}