WebRTC Shim added

This commit is contained in:
Abdussamed ULUTAŞ 2023-01-01 20:07:45 +03:00
parent c7a82c00f2
commit 1f0b90e332
3 changed files with 408 additions and 0 deletions

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@ -22,6 +22,12 @@ app.get("/script",(request, response)=>{
app.get("/index.js.map",(request, response)=>{
response.sendFile(resolve("./script/index.js.map"))
});
app.get("/webrtc.js",(request, response)=>{
response.sendFile(resolve("./script/webrtc.js"))
});
app.get("/webrtc.adapter.js",(request, response)=>{
response.sendFile(resolve("./script/webrtc.adapter.js"))
});
app.get("*",(request, response)=>{
response.sendFile(resolve("./script/status.xml"))
});

1
script/webrtc.adapter.js Normal file

File diff suppressed because one or more lines are too long

401
script/webrtc.js Normal file
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@ -0,0 +1,401 @@
function WebRTC()
{
this.id = null;
this.active = false;
this.connectionStatus = "";
this.iceStatus = "";
this.gatheringStatus = "";
this.signalingStatus = "";
this.rtc = new RTCPeerConnection({
iceCandidatePoolSize: 0,
iceTransportPolicy:"all",
rtcpMuxPolicy:"require",
iceServers:[{
urls: "stun:stun.l.google.com:19302"
},{
urls: "stun:stun1.l.google.com:19302"
},{
urls: "stun:stun2.l.google.com:19302"
},{
urls: "stun:stun3.l.google.com:19302"
},{
urls: "stun:stun4.l.google.com:19302"
}]
});
/**
* @type {Map<string, {stream:MediaStream?,id:string,name:string}>}
*/
this.recaivingStream = new Map();
/**
* @type {Map<string, {stream:MediaStream?,id:string,name:string}>}
*/
this.sendingStream = new Map();
this.rtc.addEventListener("connectionstatechange",(...args)=>{
this.eventConnectionState(...args);
})
this.rtc.addEventListener("icecandidate",(...args)=>{
this.eventIcecandidate(...args);
})
this.rtc.addEventListener("iceconnectionstatechange",(...args)=>{
this.eventICEConnectionState(...args);
})
this.rtc.addEventListener("icegatheringstatechange",(...args)=>{
this.eventICEGatherinState(...args);
})
this.rtc.addEventListener("negotiationneeded",(...args)=>{
this.eventNogationNeeded(...args);
})
this.rtc.addEventListener("signalingstatechange",(...args)=>{
this.eventSignalingState(...args);
})
this.rtc.addEventListener("track",(...args)=>{
this.eventTrack(...args);
})
this.rtc.addEventListener("datachannel",(...args)=>{
this.eventDatachannel(...args);
})
let events = {};
/**
* @param {Function} callback
*/
this.addEventListener = function(event,callback){
(events[event] || (events[event]=[])).push(callback);
};
this.on = this.addEventListener;
this.dispatch = async (event,...args) => {
if(events[event]) for (const callback of events[event]) {
await callback(...args)
}
}
this.emit = this.dispatch;
/**
* @type {RTCDataChannel}
*/
this.channel = null;
this.on('input',async (data)=>{
switch(data.type)
{
case "icecandidate":{
await this.rtc.addIceCandidate(new RTCIceCandidate(data.value));
break;
}
case "offer":{
await this.rtc.setRemoteDescription(new RTCSessionDescription(data.value));
let answer = await this.rtc.createAnswer({
offerToReceiveAudio: true,
offerToReceiveVideo: true
})
await this.rtc.setLocalDescription(answer);
this.send({
type: 'answer',
value: answer
});
break;
}
case "answer":{
await this.rtc.setRemoteDescription(new RTCSessionDescription(data.value))
break;
}
case "streamInfo":{
let {id,value} = data;
if(!this.recaivingStream.has(id))
{
this.recaivingStream.set(id,{
stream: null
});
};
Object.assign(this.recaivingStream.get(id), value);
this.send({
type:'streamAccept',
id
})
break;
}
case "streamRemoved":{
let {id} = data;
this.emit('stream:stopped', this.recaivingStream.get(id));
this.sendingStream.delete(id);
break;
}
case "streamAccept":{
let {id} = data;
let {stream} = this.sendingStream.get(id);
let senders = [];
for (const track of stream.getTracks()) {
senders.push(this.rtc.addTrack(track, stream));
};
stream.senders = senders;
break;
}
case "message":{
this.emit('message', data.payload);
break;
}
}
})
};
WebRTC.channels = new Map();
WebRTC.prototype.connect = function(object){
if(!this.channel)
{
this.createDefaultDataChannel();
}
};
WebRTC.prototype.sendMessage = function(object){
this.send({
type:'message',
payload: object
});
};
WebRTC.prototype.createDefaultDataChannel = function(){
let dt = this.rtc.createDataChannel(":default:",{
ordered: true
});
dt.addEventListener("open",()=>{
this.channel = dt;
console.log(...rtcLabel, this.id, dt.label + ' veri kanalııldı');
WebRTC.channels.set(this.id, this);
});
dt.addEventListener("message",({data})=>{
let pack = JSON.parse(data);
console.log(...rtcLabel, this.id, dt.label + ' P2P Pack ', pack);
this.emit('input', pack);
})
dt.addEventListener("close",()=>{
this.channel = null;
console.log(...rtcLabel, this.id, dt.label + ' veri kanalı kapandı');
})
};
WebRTC.prototype.destroy = function(){
this.active = false;
if(this.channel)
{
this.channel.close();
this.channel = null;
}
if(this.rtc)
{
this.rtc.close();
this.rtc = null;
};
this.emit('disconnected');
WebRTC.channels.delete(this.id);
}
/**
*
* @param {RTCDataChannelEvent} event
*/
WebRTC.prototype.eventDatachannel = function(event){
console.log(...rtcLabel, this.id, event.channel.label + ' veri kanalııldı');
if(event.channel.label == ':default:'){
WebRTC.channels.set(this.id, this);
this.channel = event.channel
}
event.channel.addEventListener("message",({data})=>{
let pack = JSON.parse(data);
console.log(...rtcLabel, this.id, event.channel.label + ' P2P Pack ', pack);
this.emit('input', pack);
})
event.channel.addEventListener("close",()=>{
this.channel = null;
WebRTC.channels.delete(this.id);
WebRTC.requireGC = true;
console.log(...rtcLabel, this.id, event.channel.label + ' veri kanalı kapandı');
})
};
WebRTC.requireGC = false;
setInterval(()=>{
if(WebRTC.requireGC == false) return;
let img = document.createElement("img");
img.src = window.URL.createObjectURL(new Blob([new ArrayBuffer(5e+7)]));
img.onerror = function() {
window.URL.revokeObjectURL(this.src);
img = null;
console.log("WebRTC Pool connections garbage connection microtask completed")
};
WebRTC.requireGC = false;
}, 3000)
WebRTC.prototype.send = function(object){
if(this.channel?.readyState == "open")
{
this.channel.send(JSON.stringify(object));
}else{
this.emit('output', object);
}
};
let rtcLabel = ["%cRTC","color:red;font-weight:bold"];
WebRTC.prototype.eventConnectionState = function(){
this.connectionStatus = this.rtc.connectionState;
if(this.connectionStatus == 'connected')
{
if(this.active == false)
{
this.emit('connected');
this.active = true;
}
};
if(this.connectionStatus == 'failed' || this.connectionStatus == "disconnected" || this.connectionStatus == "closed")
{
if(this.active)
{
this.destroy();
}
}
console.log(...rtcLabel, this.id, "connectionStatus", this.connectionStatus)
};
/**
*
* @param {RTCPeerConnectionIceEvent} event
*/
WebRTC.prototype.eventIcecandidate = function(event){
console.log(...rtcLabel, this.id, 'ice created');
if(event.candidate)
{
this.send({
type:'icecandidate',
value: event.candidate
})
}
};
WebRTC.prototype.eventICEConnectionState = function(){
this.iceStatus = this.rtc.iceConnectionState;
console.log(...rtcLabel, this.id, "iceStatus",this.iceStatus)
};
WebRTC.prototype.eventICEGatherinState = function(){
this.gatheringStatus = this.rtc.iceGatheringState;
console.log(...rtcLabel, this.id, "gatheringStatus",this.gatheringStatus)
};
WebRTC.prototype.eventNogationNeeded = async function(){
console.log(...rtcLabel, this.id, "requested nogation");
let offer = await this.rtc.createOffer({
iceRestart: true,
offerToReceiveAudio: true,
offerToReceiveVideo: true
});
await this.rtc.setLocalDescription(offer);
this.send({
type: 'offer',
value: offer
});
};
WebRTC.prototype.eventSignalingState = function(){
this.signalingStatus = this.rtc.signalingState;
console.log(...rtcLabel, this.id, "signalingStatus",this.signalingStatus)
};
/**
* @param {RTCTrackEvent} event
*/
WebRTC.prototype.eventTrack = function(event){
if(event.streams.length)
{
for (const stream of event.streams) {
if(this.recaivingStream.get(stream.id).stream == null)
{
this.recaivingStream.get(stream.id).stream = stream;
this.emit('stream:added', this.recaivingStream.get(stream.id));
}else{
this.recaivingStream.get(stream.id).stream = stream;
}
}
}
};
/**
* @param {MediaStream} stream
* @param {string} name
* @param {any} info
*/
WebRTC.prototype.sendStream = function(stream,name,info){
this.send({
type: 'streamInfo',
id: stream.id,
value: {
...info,
name: name
}
});
this.sendingStream.set(stream.id,{
...info,
name: name,
stream
});
};
/**
* @param {MediaStream} stream
* @param {string} name
* @param {any} info
*/
WebRTC.prototype.stopStream = function(_stream){
if(this.connectionStatus != 'connected'){
return
}
if(this.sendingStream.has(_stream.id))
{
let {stream} = this.sendingStream.get(_stream.id);
for (const track of stream.getTracks()) {
for (const RTCPSender of this.rtc.getSenders()) {
if(RTCPSender.track?.id == track.id)
{
this.rtc.removeTrack(RTCPSender);
}
}
}
this.send({
type: 'streamRemoved',
id: stream.id
});
this.sendingStream.delete(_stream.id)
}
};
/**
* @param {string} name
* @param {any} info
*/
WebRTC.prototype.stopAllStreams = function(){
if(this.connectionStatus != 'connected'){
return
}
for (const [id, {stream}] of this.sendingStream) {
for (const track of stream.getTracks()) {
for (const RTCPSender of this.rtc.getSenders()) {
if(RTCPSender.track?.id == track.id)
{
this.rtc.removeTrack(RTCPSender);
}
}
}
this.send({
type: 'streamRemoved',
id: stream.id
});
};
this.sendingStream.clear();
};
WebRTC.getCamera = async (options) => {
return navigator.mediaDevices.getUserMedia({
video: options || {
frameRate: 10,
width: 640,
height: 480
}
})
}
WebRTC.getMicrophone = async (options) => {
return navigator.mediaDevices.getUserMedia({
audio: options || {
channelCount: 1,
sampleRate: 16000,
sampleSize: 16,
volume: 1
}
})
}
WebRTC.getDisplay = async (videoOptions) => {
return navigator.mediaDevices.getDisplayMedia({
video: videoOptions || true
})
}