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webrtc.js
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/*
* Copyright (c) 2020 Steve Seguin. All Rights Reserved.
*
* Use of this source code is governed by the APGLv3 open-source license
* that can be found in the LICENSE file in the root of the source
* tree. Alternative licencing options can be made available on request.
*
*/
var WebRTC = {};
function log(msg){
console.log(msg);
//console.re.log(msg);
}
function errorlog(msg, url=false, lineNumber=false){
console.error(msg);
//console.re.error(msg);
if (lineNumber){
// console.re.error(lineNumber);
console.error(lineNumber);
}
}
function isAlphaNumeric(str) {
var code, i, len;
for (i = 0, len = str.length; i < len; i++) {
code = str.charCodeAt(i);
if (!(code > 47 && code < 58) && // numeric (0-9)
!(code > 64 && code < 91) && // upper alpha (A-Z)
!(code > 96 && code < 123)) { // lower alpha (a-z)
return false;
}
}
return true;
}
window.onerror = function backupErr(errorMsg, url, lineNumber) {
errorlog(errorMsg);
errorlog(lineNumber);
errorlog("Unhandeled Error occured"); //or any message
return false;
};
WebRTC.Media = (function(){
var session = {};
function onSuccess(){}
function onError(err){errorlog(err);}
function defer(){
var res, rej;
var promise = new Promise((resolve, reject) => {
res = resolve;
rej = reject;
});
promise.resolve = res;
promise.reject = rej;
return promise;
}
session.configuration =
{iceServers: [
{ urls: ["stun:stun.l.google.com:19302", "stun:stun4.l.google.com:19302" ]},
{ urls: ["stun:stun.stunprotocol.org:3478"]}
]};
//var turn = {};
//turn.username = "steve";
//turn.credential = "justtesting";
//turn.urls = ["turn:turn.obs.ninja:443"];
//session.configuration.iceServers.push(turn);
log(session.configuration);
session.streamID = null; // This computer has its own streamID; this implies it can only publish 1 stream per session.
session.pcs = {};
session.rpcs = {};
session.muted = false;
session.streamSrc = null; // location of this computer's stream, if there is one
session.msg = null;
session.keys = {}; // security signing stuff
session.mykey = {};
session.counter=0; // this keeps track of messages sent. Lets the listener know if he missed any signed messages. security aspect.
session.enc = new TextEncoder("utf-8");
session.volume = 100; // state of volume.
session.stereo = false; // both peers need to have this enabled for it to work.
session.bitrate = false; // 20000;
session.screenshare = false;
session.director = false;
session.scene = false;
session.framerate = false;
session.maxframerate = false;
session.single = false;
session.roomid = false;
session.codec = false ; // "vp9" //"h264"; // Setting the default codec to VP9? ugh. Seems stable, but high CPU.
session.width=false;
session.height=false;
session.videoElement = false;
session.infocus = false;
session.security = false;
session.nocursor = false;
session.sink = false;
//this._peerConnection.getReceivers().forEach(element => element.playoutDelayHint = 0.05);
session.sync = false;
session.buffer = false;
session.generateStreamID = function(){
var text = "";
var possible = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnpqrstuvwxyz23456789";
for (var i = 0; i < 7; i++){
text += possible.charAt(Math.floor(Math.random() * possible.length));
}
log(text);
return text;
};
session.changeStreamID = function(permaid){
permaid = permaid.replace(/[^0-9a-zA-Z]/gi, '');
if (permaid.length < 1){
alert("permaid URL parameter should be at least 7 alphanumeric characters long");
} else if (permaid.length > 25){
alert("permaid URL parameter should be less than 21 alphanumeric characters long");
} else {
session.streamID = permaid;
}
};
session.generateCrypto = function(){
window.crypto.subtle.generateKey({
name: "RSASSA-PKCS1-v1_5",
modulusLength: 512, //can be 1024, 2048, or 4096 -- also apparently 512!
publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
hash: {name: "SHA-1"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
true, //whether the key is extractable (i.e. can be used in exportKey)
["sign", "verify"] //can be any combination of "sign" and "verify"
).then(function(key){
log(key.publicKey);
log(key.privateKey);
session.mykey = key;
window.crypto.subtle.exportKey(
"jwk", //can be "jwk" (public or private), "spki" (public only), or "pkcs8" (private only)
key.publicKey //can be a publicKey or privateKey, as long as extractable was true
).then(function(keydata){
//returns the exported key data
log(keydata);
var data = {};
data.request = "storekey";
data.key = keydata.n;
session.sendMsg(data);
//log(JSON.stringify(data));
//session.signData("asdfasdfasdf");
}).catch(function(err){
errorlog(err);
});
})
.catch(function(err){
errorlog(err);
});
};
session.importCrypto = function(n,streamID){
window.crypto.subtle.importKey(
"jwk", //can be "jwk" (public or private), "spki" (public only), or "pkcs8" (private only)
{ //this is an example jwk key, other key types are Uint8Array objects
kty: "RSA",
e: "AQAB",
n: n,
alg: "RS1",
ext: true,
},
{ //these are the algorithm options
name: "RSASSA-PKCS1-v1_5",
hash: {name: "SHA-1"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
true, //whether the key is extractable (i.e. can be used in exportKey)
["verify"] //"verify" for public key import, "sign" for private key imports
).then(function(publicKey){
//returns a publicKey (or privateKey if you are importing a private key)
log(publicKey);
session.keys[streamID] = {};
session.keys[streamID].publicKey = publicKey;
session.keys[streamID].privateKey = null;
}).catch(function(err){
errorlog(err);
});
};
session.requestRateLimit = function(bandwidth, UUID){
log("request rate limit: "+bandwidth);
if (session.rpcs[UUID].manualBandwidth!==false){ // override the bandwidth; false is off
if (session.rpcs[UUID].manualBandwidth == bandwidth){return;}
session.rpcs[UUID].targetBandwidth=session.rpcs[UUID].manualBandwidth;
} else if (bandwidth==false){
// Just retry setting it.
if (session.rpcs[UUID].targetBandwidth==session.rpcs[UUID].bandwidth){
return;
}
} else {
session.rpcs[UUID].targetBandwidth=bandwidth;
}
bandwidth = parseInt(session.rpcs[UUID].targetBandwidth);
if (session.rpcs[UUID].bandwidth==bandwidth){return;}
var msg = {};
msg.bitrate = bandwidth;
log(msg);
if (session.sendRequest(msg,UUID)){
session.rpcs[UUID].bandwidth=bandwidth;
} else {
setTimeout(function(){session.requestRateLimit(false, UUID);},5000); // just try re-setting it if it didn't work
errorlog("couldn't set rate limit");
}
};
session.limitBitrate = function(UUID, bandwidth){
// In Chrome, use RTCRtpSender.setParameters to change bandwidth without
// (local) renegotiation. Note that this will be within the envelope of
// the initial maximum bandwidth negotiated via SDP.
bandwidth = parseInt(bandwidth);
try{
if ((adapter.browserDetails.browser === 'chrome' ||
adapter.browserDetails.browser === 'safari' ||
(adapter.browserDetails.browser === 'firefox' &&
adapter.browserDetails.version >= 64)) && 'RTCRtpSender' in window && 'setParameters' in window.RTCRtpSender.prototype){
var sender = session.pcs[UUID].getSenders().find(function(s) {return s.track.kind == "video";});
log(sender);
if (!sender){
errorlog("can't change bitrate; no video sender found");
return;
}
var parameters = sender.getParameters();
if (!parameters.encodings){
parameters.encodings = [{}];
}
log(parameters.encodings);
log("parameters");
if (bandwidth < 0) {
delete parameters.encodings[0].maxBitrate;
} else {
parameters.encodings[0].maxBitrate = bandwidth * 1000;
}
sender.setParameters(parameters).then(() => {
log("bandwidth set!");
log(sender.getParameters());
}).catch(e => errorlog(e));
return;
}
} catch(e){errorlog(e);}
};
function changeAudioOutputDevice(ele) {
if (session.sink){
navigator.mediaDevices.getUserMedia({audio:true,video:false}).then(function (stream){
if (typeof ele.sinkId !== 'undefined'){
ele.setSinkId(session.sink).then(() => {
log("New Output Device:"+session.sink);
}).catch(error => {
errorlog(error);
alert("Failed to change audio output destination.");
// audioOutputSelect.selectedIndex = 0; // Jump back to first output device in the list as it's the default.
});
} else {
alert("Your browser does not support alternative audio sources.");
}
stream.getTracks().forEach(track => {
track.stop();
});
}).catch(function(){alert("Can't play out to specific audio device without mic permissions allowed");});
}
}
function extractSdp(sdpLine, pattern) {
var result = sdpLine.match(pattern);
return (result && result.length == 2)? result[1]: null;
}
function unlockBitrate(sdp, kbps=10000, screenshare=false){
kbps = parseInt(kbps);
if (kbps<50){kbps=50;}
var bandwidth = {
screen: 300, // 300kbits minimum
audio: 50, // 50kbits minimum
video: kbps // 256kbits (both min-max)
};
// https://cdn.webrtc-experiment.com/CodecsHandler.js
// sdp = CodecsHandler.preferCodec(sdp, 'h264');
sdp = CodecsHandler.setApplicationSpecificBandwidth(sdp, bandwidth, screenshare);
sdp = CodecsHandler.setVideoBitrates(sdp, {
min: bandwidth.video,
max: bandwidth.video
});
//sdp = BandwidthHandler.setOpusAttributes(sdp);
//sdp = sdp.replace(/a=mid:(.*)\r\n/g, 'a=mid:$1\r\nb=AS:' + bandwidth + '\r\n'); // vp9?
return sdp;
}
session.signData = function(data,callback){ // data as string
log(data);
if (session.mykey === {}){
log("Generate Some Crypto keys first");
}
window.crypto.subtle.sign(
{
name: "RSASSA-PKCS1-v1_5",
},
session.mykey.privateKey, //from generateKey or importKey above
session.enc.encode(data) //ArrayBuffer of data you want to sign
).then(function(signature){
//returns an ArrayBuffer containing the signature
signature = new Uint8Array(signature);
signature = signature.reduce((str, byte) => str + byte.toString(16).padStart(2, '0'), '');
//signature = new Uint8Array(signature.match(/.{1,2}/g).map(byte => parseInt(byte, 16)));
//log(signature);
callback(data,signature);
log(JSON.stringify(signature));
}).catch(function(err){
errorlog(err);
});
};
session.verifyData = function(data,streamID){
data.signature = new Uint8Array(data.signature.match(/.{1,2}/g).map(byte => parseInt(byte, 16)));
if (session.keys[streamID].publicKey){
return window.crypto.subtle.verify({
name: "RSASSA-PKCS1-v1_5",
},
session.keys[streamID].publicKey, //from generateKey or importKey above
data.signature, //ArrayBuffer of the signature
session.enc.encode(data.data) //ArrayBuffer of the data
).then(function(isvalid){
//returns a boolean on whether the signature is true or not
log(isvalid);
return isvalid;
}).catch(function(err){
errorlog(err);
return false;
//alert("Could not validate inbound connection");
});
}
};
session.changeTitle = function(title){
var data = {};
data.request = "changeTitle";
data.title = title;
session.sendMsg(data);
};
session.watchStream = function(streamID){
//session.streamID = streamID; // we won't remember what we asked for, but this keeps it simple
var data = {};
data.request = "play";
data.streamID = streamID;
session.sendMsg(data);
};
session.debug = function(){
var data = {};
data.request = "debug123";
session.sendMsg(data);
};
session.joinRoom = function(roomid,maxbitrate){
var data = {};
data.request = "joinroom";
data.roomid = roomid;
session.sendMsg(data);
if (session.bitrate==false){
session.bitrate = maxbitrate; // allow users to override, but otherwise limit it
}
session.listPromise = defer();
return session.listPromise;
};
session.retryTimer = null;
session.ws=null;
session.connect = function(reconnect=false){
if (session.ws != null){return;}
session.ws = new WebSocket("wss://api.obs.ninja:7443");
session.sendMsg = function(msg){
log("sending message");
if (session.ws.readyState !== 1){session.msg = msg;} // store the last message to be sent if websocket is not ready.
else {
session.msg=null;
session.ws.send(JSON.stringify(msg));
}
};
session.ws.onopen = function(){
if (session.retryTimer!=null){
clearInterval(session.retryTimer);
session.retryTimer=null;
}
log("connected to video server");
if (session.msg!==null){ // send the last store message that was in queue to be sent when ws was closed. sending 1 message is better than none, and I don't want to spam the server with hundreds. so this is a balance.
session.ws.send(JSON.stringify(session.msg));
session.msg = null;
}
if (reconnect==true){
if (session.streamID){
var data = {};
data.request = "seed";
//data.title = title;
data.streamID = session.streamID;
session.sendMsg(data);
}
}
};
session.ws.onmessage = function (evt) {
var msg = JSON.parse(evt.data);
if (msg.request){ // ACTIONS THAT ARE OUTSIDE THE SCOPE OF BASIC WEBRTC
if (msg.request=="offerSDP"){ // newly connected client is asking for your SDP offer
if (session.security){
if (Object.keys(session.pcs).length>0){
//var r = confirm("Press a button!");
//if (r == true) {
// txt = "You pressed OK!";
//} else {
// txt = "You pressed Cancel!";
//}
setTimeout(function() {alert("Security mode is enabled, yet a second connection request was recieved. It may be valid, but we will deny it out of extreme caution."); }, 1);
return;
}
}
session.offerSDP(session.streamSrc, msg.UUID);
} else if (msg.request=="listing"){ // Get a list of streams you have access to
log(msg.list);
session.listPromise.resolve(msg.list);
} else if (msg.request=="genkey"){ // prevents spoofing ; more for future work
session.generateCrypto();
} else if (msg.request=="publickey"){ // prevents spoofing
session.importCrypto(msg.key, msg.streamID);
} else if (msg.request=="sendroom"){ // send a message to those in the group via server. p2p is probably the preferred method, but not always possible
log("Inbound User-based Message from Room");
try {
if ("director" in msg){
if (msg.director === session.scene){
if ("action" in msg){
if ("target" in msg){
for (var i in session.rpcs){ // If you are VIEWING this use
if (i === msg.target){
if ("value" in msg){
if (msg.action == "mute"){
if (msg.value == 0){
log("Mute video -306");
if (session.rpcs[i].videoElement){
session.rpcs[i].videoElement.muted = true;
session.rpcs[i].director = 0;
}
} else {
log("Unmute video");
if (session.rpcs[i].videoElement){
session.rpcs[i].director = 1;
if (session.rpcs[i].publisher!==false){
if (session.rpcs[i].publisher == 0){
log("did not mute");
return;} // if the publisher wants it muted. it says muted
}
session.rpcs[i].videoElement.muted = false;
}
}
} else if (msg.action == "display"){
if (session.single){log("We don't hide dedicated views");}
else if (msg.value == 0) {
if (session.rpcs[i].videoElement){
session.rpcs[i].videoElement.style.display="none";
/// I can probably just go thru the RPCS[] list, using UUID, and say "visible" or not. Use Update on that instead.
// I won't need to update the lement directly , just the update function.
}
updateMixer();
} else {
if (session.rpcs[i].videoElement){
session.rpcs[i].videoElement.style.display="block";
if (session.rpcs[i].videoElement===false){
session.rpcs[i].director = 1;
}
if (session.rpcs[i].director){
if (session.rpcs[i].publisher!==false){
if (session.rpcs[i].publisher == 0){return;}
session.rpcs[i].videoElement.muted=false;
log("UN-MUTED");
}
}
}
updateMixer();
}
} else if (msg.action == "volume"){
log(parseInt(msg.value)/100.0);
if (session.rpcs[i].videoElement){
session.rpcs[i].videoElement.volume=parseInt(msg.value)/100.0;
log("UN-MUTED");
}
}
}
}
}
}
}
}
}
} catch(e){
errorlog(e);
}
log(msg);
} else if (msg.request=="someonejoined"){ // someone joined the room. they may not have a video submitted: like the director.
log("Someone Joined the Room");
log(msg);
} else if (msg.request=="videoaddedtoroom"){ // a video was added to the room
log("Someone published a video to the Room");
log(msg);
if ((urlParams.has('streamid')) || (urlParams.has('view'))){
var streamlist = urlParams.get('streamid') || urlParams.get('view');
log(streamlist);
streamlist = streamlist.split(",");
for (var j in streamlist){
if (msg.streamID === streamlist[j]){
session.watchStream(msg.streamID);
}
}
} else {
session.watchStream(msg.streamID);
}
} else {
log(msg);
}
} else if (msg.description){ // we don't get the STREAM ID back with this. That could be good from a privacy point of view -- no one in the group call will have Stream ID access for publishing?
// For the sake of ease, I may just return the StreamID and revisit
//log(msg.description);
// var ttt=true;
//if (msg.UUID in session.pcs)(ttt=false);
if (msg.description.type=="offer"){
session.setupIncoming(msg); // could end up setting up the peer the wrong way.
session.connectPeer(msg);
} else {
session.pcs[msg.UUID].setRemoteDescription(msg.description).then(function(){
log("PCS SET SDP");
//try {
// if (session.roomid){
// session.limitBitrate(msg.UUID,40); // drop bitrate low. May not be supported by iOS, which will need to fallback onto older methods?
// } else if (session.director){
// alert("test");
/// session.limitBitrate(msg.UUID,40); // drop bitrate low. May not be supported by iOS, which will need to fallback onto older methods?
// }
//} catch(e){
// errorlog(e);
//}
}).catch(onError);
}
} else if (msg.candidate){
log("GOT ICE!!");
if ((msg.UUID in session.pcs) && (msg.type=="remote")){
log("PCS WINS ICE");
session.pcs[msg.UUID].addIceCandidate(msg.candidate).then(function(){log("added ICE from viewer");}).catch(function(e){
//console.error("ICE ERROR");
errorlog(e);
errorlog(msg);
}); // NOT SURE ABOUT THIS
} else if ((msg.UUID in session.rpcs ) && (msg.type=="local")) {
log("RPCS WINS ICE");
session.rpcs[msg.UUID].addIceCandidate(msg.candidate).then(function(){log("added ICE from publisher");}).catch(function(e){
//console.error("ICE ERROR");
errorlog(e);
errorlog(msg);
}); // NOT SURE ABOUT THIS
} else {
errorlog("ICE DID NOT FIND A PC OPTION?");
}
} else if (msg.request == "cleanup"){ // If someone disconnects from Websockets, and doesn't reconnect, THEN we can discard their key or something?
log("Clean up");
if (msg.UUID in session.pcs){
log("problem");
session.pcs[msg.UUID].close();
delete(session.pcs[msg.UUID]);
// I'll have to figure out where to reconnect somewhere else
}
if (msg.UUID in session.rpcs){
log("problem");
session.rpcs[msg.UUID].close();
delete(session.rpcs[msg.UUID]);
// I'll have to figure out where to reconnect somewhere else
}
} else { log("what is this?",msg); }
};
session.ws.onclose = function(){
errorlog("Connection to Control Server lost.\n\nAuto-reconnect is partially implemented");
//session.retryTimer = setTimeout(function() {
// if (session.ws.readyState === WebSocket.CLOSED){
// session.ws=null;
// session.connect(true);
// }
//}, 5550);
};
};
// WEBCAM
session.publishStream = function(stream, title="Stream Sharing Session"){ // stream is used to generated an SDP
log("STREAM SETUP");
stream.oninactive = function() {
errorlog('Stream inactive');
};
if (stream.getVideoTracks().length==0){
errorlog("NO VIDEO TRACK INCLUDED");
}
if (stream.getAudioTracks().length==0){
errorlog("NO AUDIO TRACK INCLUDED");
}
session.streamSrc=stream;
var v = document.createElement("video");
var container = document.createElement("div");
container.id = "container";
container.className = "vidcon";
document.getElementById("gridlayout").appendChild(container);
container.appendChild(v);
v.className = "tile";
if (session.director){
} else if (session.single){
} else if (session.scene){
session.videoElement = v;
updateMixer();
} else if (session.roomid){
session.videoElement = v;
updateMixer();
} else {
v.style.boxShadow= "rgb(255, 255, 255) 0px 0px 115px 1px";
v.style.maxWidth = "800px";
v.style.maxHeight = "800px";
v.style.width = "100%";
v.style.maxHeight = "100%";
v.style.display = "block";
v.style.margin = "auto auto";
container.style.width="100%";
container.style.height="100%";
container.style.display = "flex";
container.style.alignItems = "center";
container.backgroundColor = "#666";
v.className = "";
setTimeout(function(){dragElement(v);},1000);
}
v.autoplay = true;
v.controls = true;
v.muted = true;
v.setAttribute("playsinline","");
v.id = "videosource"; // could be set to UUID in the future
try {
v.srcObject = session.streamSrc;
} catch (e){errorlog(e);}
try{
var m = document.getElementById("mainmenu");
m.remove();
} catch (e){}
var data = {};
data.request = "seed";
data.title = title;
document.getElementById("reshare").value = "https://"+location.host+location.pathname+"?view="+session.streamID;
data.streamID = session.streamID;
session.sendMsg(data);
};
session.publishScreen = function(constraints, title="Screen Sharing Session", audioList=[]){ // webcam stream is used to generated an SDP
log("SCREEN SHARE SETUP");
if (!navigator.mediaDevices.getDisplayMedia){
alert("Sorry, your browser is not supported. Please use the desktop versions of Firefox or Chrome instead");
return;
}
var streams = [];
for (var i=1; i<audioList.length;i++){
if (audioList[i].selected){
var constraint = {audio: {deviceId: {exact: audioList[i].value}}};
navigator.mediaDevices.getUserMedia(constraint).then(function (stream){
streams.push(stream);
}).catch(errorlog);
}
}
console.log(streams);
navigator.mediaDevices.getDisplayMedia(constraints)
.then(function (stream) {
if (session.roomid){
console.log("ROOMID EANBLKED");
window.addEventListener("resize", updateMixer);
joinRoom(session.roomid);
document.getElementById("head3").className = 'advanced';
} else {
document.getElementById("head3").className = '';
}
updateURL("push="+session.streamID);
session.screenshare = true;
stream.oninactive = function(){
log('Stream inactive');
};
console.log("adding tracks");
for (var i=0; i<streams.length;i++){
streams[i].getAudioTracks().forEach(function(track){
stream.addTrack(track);
console.log(track);
});
}
streams = null;
if (stream.getAudioTracks().length==0){
alert("No Audio Source was detected.");
}
session.streamSrc=stream;
var v = document.createElement("video");
var container = document.createElement("div");
container.id = "container";
container.className = "vidcon";
document.getElementById("gridlayout").appendChild(container);
container.appendChild(v);
v.className = "tile";
if (session.director){
} else if (session.single){
} else if (session.scene){
session.videoElement = v;
updateMixer();
} else if (session.roomid){
session.videoElement = v;
updateMixer();
} else {
v.style.boxShadow= "rgb(255, 255, 255) 0px 0px 115px 1px";
v.style.maxWidth = "800px";
v.style.maxHeight = "800px";
v.style.width = "100%";
v.style.maxHeight = "100%";
v.style.display = "block";
v.style.margin = "auto auto";
container.style.width="100%";
container.style.height="100%";
container.style.display = "flex";
container.style.alignItems = "center";
container.backgroundColor = "#666";
v.className = "";
}
v.autoplay = true;
v.controls = true;
v.setAttribute("playsinline","");
v.muted = true;
v.id = "videosource"; // could be set to UUID in the futur
if (!v.srcObject || v.srcObject.id !== stream.id) {
v.srcObject = stream;
}
try{
var m = document.getElementById("mainmenu");
m.remove();
} catch (e){}
// stream.getTracks().forEach(track => track.play());
var data = {};
data.request = "seed";
document.getElementById("reshare").value = "https://"+location.host+location.pathname+"?view="+session.streamID;
data.streamID = session.streamID;
data.title = title;
session.sendMsg(data);
}).catch(function(error){
log('getDisplayMedia error: ' + error.name, error);
errorlog(error);
//alert("You have denied the website access to screen-share. You will need to refresh to try again.");
});
};
session.publishFile = function(ele,event, title="Video File Sharing Session"){ // webcam stream is used to generated an SDP
log("FILE SHARE SETUP");
var file = ele.files[0];
var type = file.type;
var fileURL = URL.createObjectURL(file);
var container = document.createElement("div");
container.id = "container";
container.className = "vidcon";
var v = document.createElement("video");
document.getElementById("gridlayout").appendChild(container);
container.appendChild(v);
v.autoplay = false;
v.controls = true;
v.muted = false;
v.loop = true;
v.setAttribute("playsinline","");
v.src = fileURL;
if (session.director){
} else if (session.single){
} else if (session.scene){
session.videoElement = v;
updateMixer();
} else if (session.roomid){
session.videoElement = v;
updateMixer();
}
var canPlay = v.canPlayType(type);
if (canPlay === ''){canPlay = 'no';}
log('Can play type "' + type + '": ' + canPlay);
if (canPlay === 'no') {
v.outerHTML = "";
alert("Cannot play this file type. Please refresh and try another option ");
return;
}
v.id = "videosource"; // could be set to UUID in the future
v.className = "tile";
var m = document.getElementById("mainmenu");
m.remove();
try{
session.streamSrc=v.captureStream();
} catch(e){
log(e);
alert("Safari and many older browsers do not support this feature. Perhaps try using Chrome or Firefox on desktop instead. Please refresh to try another option.");
v.outerHTML = "";
return false;
}
var data = {};
data.request = "seed";
data.title = title;
document.getElementById("reshare").value = "https://obs.ninja/?view="+session.streamID;
data.streamID = session.streamID;
session.sendMsg(data);
};
session.sendMessage = function(msg, UUID=null){ // I MIGHT NEED TO LOOK CLOSER AT THIS. ITS ONE DIRECTIONAL CURRENTLY
msg.timestamp = Date.now().toString();
msg.counter = session.counter;
session.signData(msg,function(data,signature){
session.counter += 1;
if (UUID == null){ // send to all RTC peers i'm publishing to
for (var i in session.pcs){
try{
session.pcs[i].sendChannel.send(JSON.stringify({data,signature}));
} catch(e){
log("RTC Connection seems to be dead? is it? If it is, or can't be validated, close this shit");
//session.pcs[i].close();
//delete(session.pcs[i]);
}
}
} else {
try{
session.pcs[UUID].sendChannel.send(JSON.stringify({data,signature}));
} catch(e){
log("RTC Connection seems to be dead? is it? If it is, or can't be validated, close this shit");
//session.pcs[UUID].close();
//delete(session.pcs[UUID]);
}
}
});
};
session.sendMessage = function(msg, UUID=null){ // Publisher signs the request. This lets sub-viewers, if any, verify if a message is from the original publisher or not.
msg.timestamp = Date.now().toString();
msg.counter = session.counter;
session.signData(msg,function(data,signature){
session.counter += 1;
if (UUID == null){ // send to all RTC peers i'm publishing to
for (var i in session.pcs){
try{
session.pcs[i].sendChannel.send(JSON.stringify({data,signature}));
} catch(e){
log("RTC Connection seems to be dead? is it? If it is, or can't be validated, close this shit");
//session.pcs[i].close();
//delete(session.pcs[i]);
}
}
} else {
try{
session.pcs[UUID].sendChannel.send(JSON.stringify({data,signature}));
} catch(e){
log("RTC Connection seems to be dead? is it? If it is, or can't be validated, close this shit");
//session.pcs[UUID].close();
//delete(session.pcs[UUID]);
}
}
});
};
session.sendRequest = function(msg, UUID){ // Publisher signs the request. This lets sub-viewers, if any, verify if a message is from the original publisher or not.
try{
msg.timestamp = Date.now().toString();
session.rpcs[UUID].receiveChannel.send(JSON.stringify(msg));
return true;
} catch(e){
log("PUBLISHER's RTC Connection seems to be dead? ");
return false;
}
};
session.offerSDP = function(stream,UUID){ // publisher/offerer (PCS)
if (UUID in session.pcs){
errorlog("PROBLEM! RESENDING SDP OFFER SHOULD NOT HAPPEN");
session.createOffer(session.pcs[UUID], UUID);
return;
}
else {log("Create a new RTC connection; offering SDP on request");}
session.pcs[UUID] = new RTCPeerConnection(session.configuration);
session.pcs[UUID].UUID = UUID;
session.pcs[UUID].sendChannel = session.pcs[UUID].createDataChannel("sendChannel");
//session.pcs[UUID].sendChannel.onopen = () => { // we don't need this anymore if muting locally.
// var msg = {};
// msg["volume"] = session.volume;
// session.sendMessage(msg, UUID); //TODO: does this work? UUID being passed like this?
//};
session.pcs[UUID].sendChannel.onclose = () => {
log("send channel closed");
};
session.pcs[UUID].sendChannel.onmessage = (e)=>{
log("recieved data from viewer");
var msg = JSON.parse(e.data);
log(msg);
if ("bitrate" in msg){
session.limitBitrate(UUID, msg.bitrate);
}
};
log("pubs streams to offeR",stream.getTracks());
stream.getTracks().forEach(track => {
var sender = session.pcs[UUID].addTrack(track, stream);
});
session.pcs[UUID].ontrack = event => {errorlog("Publisher is being sent a video stream??? NOT EXPECTED!");};
session.pcs[UUID].onicecandidate = function(event){
log("CREATE ICE 3");