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index.html
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index.html
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<!doctype html>
<html lang="en">
<head>
<title>|pipe| 2 person video call (beta)</title>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
@media (min-height: 199.99px) and (min-width: 149.99px) {
.video {
width: 240px;
height: 320px;
margin: 0 auto;
}
h1 {
font-size: 1.3em;
}
}
@media (min-height: 699.99px) and (min-width: 299.99px) {
.video {
width: 240px;
height: 604px;
}
}
@media (min-height: 650.99px) and (min-width: 350.99px) {
.video {
width: 309px;
height: 550px;
}
}
@media (min-height: 799.99px) and (min-width: 599.99px) {
.video {
width: 480px;
height: 640px;
}
}
@media (min-height: 1023.99px) and (min-width: 799.99px) {
.video {
width: 720px;
height: 960px;
}
}
@media (min-height: 1299.99px) and (min-width: 999.99px) {
.video {
width: 960px;
height: 1280px;
}
}
</style>
</head>
<body>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" crossorigin="anonymous"></script>
<a href="index.html"><h1 id="title" class="text-center">Two</h1></a>
<video class="video" id="them" playsinline autoplay muted onclick="toggleFs();">
</video>
<div class="container">
<h2><span class="badge badge-primary" id="role"></span></h2>
<h2><span class="badge badge-primary" id="status"></span></h2>
</div>
<div class="container">
<div id="chosenAction" class="row">
<button id="mute" type="button" class="btn btn-primary btn-lg"><i id="muteIcon" class="fa fa-microphone fa-2x" aria-hidden="true"></i></button>
<button id="stopCall" type="button" class="btn btn-primary btn-lg"><i id="stopIcon" class="fa fa-stop fa-2x" aria-hidden="true"></i></button>
</div>
<div>Duration <span class="badge badge-error" id="duration"></span></div>
<div class="alert alert-danger" id="packetLoss">
<strong id="countZero"></strong>% packet loss detected.
</div>
<div class="alert alert-info" id="statsZone">
local <strong id="local"></strong><br/>
<strong id="delay"></strong> sec delay<br/>
remote <strong id="remote"></strong><br/>
</div>
</div>
<div id="share" class="modal" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Send this url to the guest. </h5>
</div>
<div class="modal-body" id="shareQR">
<p>Share this web page using your phone's 'share' menu item at the top of the screen</p>
<p>Then come back to this screen and click the 'done' button.</p>
<p>You'll also need to permit access to your camera and microphone</p>
</div>
<div class="modal-footer">
<button id="shareDone" type="button" class="btn btn-secondary" data-dismiss="modal" onclick="shared();">Done</button>
</div>
</div>
</div>
</div>
<div id="accept" class="modal" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Accept a call</h5>
</div>
<div class="modal-body">
<p>Click 'accept' to start the call.</p>
<p>You'll also need to permit access to your camera and microphone</p>
</div>
<div class="modal-footer">
<button id="callAccept" type="button" class="btn btn-secondary" data-dismiss="modal" onclick="accepted();">Accept</button>
</div>
</div>
</div>
</div>
<div id="nowebrtc" class="modal" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Sorry</h5>
</div>
<div class="modal-body">
<p>Unfortunately the browser you are using does not support WebRTC video calls.</p>
<p>Please retry using Safari, Chrome, FireFox, Edge - or pretty much any mainstream browser.</p>
<p>You can probably do this with a 'share with' or 'open in' menu item.</p>
</div>
<div class="modal-footer">
<button id="sadder" type="button" class="btn btn-secondary" data-dismiss="modal" >Accept</button>
</div>
</div>
</div>
</div>
<div id="facebookapp" class="modal" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Sorry</h5>
</div>
<div class="modal-body">
<p>Unfortunately the Facebook apps block webRTC.</p>
<p>Please try hosting the call with Chrome or FireFox or Edge.</p>
<p>Go to <pre>https://pipe.github.io/two</pre> outside the Facebook or instagram app.</p>
<p>You can do this from the three dot menu on the top right of your screen.</p>
<p>Your guest can use any modern browser e.g. Chrome or FireFox or Edge or Safari</p>
</div>
<div class="modal-footer">
<button id="sad" type="button" class="btn btn-secondary" data-dismiss="modal" >Accept</button>
</div>
</div>
</div>
</div>
<footer><span>See our <a href="https://github.com/pipe/two">Github</a> for source code</span>
<span>See also <a href="https://pi.pe/privacy_policy/index.html">Privacy</a>
and <a href="https://pi.pe/impressum/index.html">Impressum</a></span>
</footer>
<script>
var properties = {
websocketURL: "wss://pi.pe/websocket/?finger=" // where to find the redezvous server.
};
var webRTCconfiguration = {
host : {
"iceServers": [
{urls: "stun:146.148.121.175:3478"},
{urls: "turn:146.148.121.175:3478?transport=udp", 'credential': 'nexus5x', 'username': 'smartphone'},
],
"bundlePolicy":"max-bundle","iceCandidatePoolSize":1
},
guest: {
"iceServers": [
{urls: "stun:146.148.121.175:3478"},
],
"bundlePolicy":"max-bundle","iceCandidatePoolSize":1
}
};
var pc; // actual peer connection to our friend
var socket; // used to set up connection with our peer.
var mid;
var fid;
var cid;
var initiator;
var lcandyStash = [];
var rcandyStash = [];
var localStream;
var statsTick
var startRecTime = 0;
var lastLoss = 0;
var lastRecv =0;
var offerSender;
var mute = false;
var peerConnectionOfferAnswerCriteria = {offerToReceiveAudio: true, offerToReceiveVideo: true };
var AudioContext = window.AudioContext || window.webkitAudioContext;
var exitFullscreen = document.exitFullscreen || document.webkitExitFullscreen;
// message stuff - used to create direct connection to peer over WEBRTC
function tweakSDP(sdp){
var lines = sdp.split("\r\n");
var mode = "none";
for (var i=0;i<lines.length;i++){
var line = lines[i];
if (line.startsWith("m=")){
mode = line;
}
if (mode.startsWith("m=audio") && line.startsWith("a=fmtp:111")){
lines[i]= "a=fmtp:111 minptime=20; ptime=60; useinbandfec=1; stereo=1; maxaveragebitrate=32000;";
}
}
return (lines.join("\r\n"));
}
function toggleFs(){
var vid = document.getElementById("them");
var fullscreenEnabled = document.fullscreenEnabled || document.webkitFullscreenEnabled;
if (fullscreenEnabled) {
if (document.fullscreenElement || document.webkitFullscreenElement){
exitFullscreen();
console.log("exit fullscreen");
} else {
if (vid.requestFullscreen){
vid.requestFullscreen();
} else {
if (vid.webkitRequestFullscreen){
vid.webkitRequestFullscreen();
}
}
console.log("enter fullscreen");
}
} else {
console.log("no fullscreen support");
}
}
function messageDeal(event){
//console.log("message is ", event.data);
var data = JSON.parse(event.data);
console.log("message data is ", data);
if (data.to != mid){
alert("message mixup");
}
switch (data.type) {
case "offer":
if (fid == null) {
fid = data.from;
}
if(statsTick && initiator){
stopCall();
document.location = document.location;
} else {
if (localStream) {
pc.setRemoteDescription(data).then(_ =>
pc.createAnswer(peerConnectionOfferAnswerCriteria).then(ans => {
ans.sdp = tweakSDP(ans.sdp);
pc.setLocalDescription(ans).then(_ =>
sendMessage(fid, mid, "answer", ans.sdp)
)
})
)
.catch((e) => console.log("set Remote offer error", e));
} else {
$("#status").text("Guest is ready! - CLICK DONE!");
}
}
break;
case "answer":
if (pc.signalingState == 'have-local-offer') {
pc.setRemoteDescription(data)
.then(_ => {
if (offerSender) {
window.clearInterval(offerSender);
}
$("#status").text("Trying to connect call");
$("#action").text("hangup");
})
.catch(e => console.log("set Remote answer error", e));
} else {
}
break;
case "candidate":
var jc = {
sdpMLineIndex: 0,
candidate: data.sdp
};
console.log("adding candidate ", jc);
var nc = new RTCIceCandidate(jc);
pc.addIceCandidate(nc)
.then( _ => console.log("added remote candidate"))
.catch((e) => console.log("couldn't add candidate ", e));
break;
}
}
function sendMessage(to,from,type,data){
var messageJ = {
to:to,
from:from,
type:type,
sdp:data
};
var message = JSON.stringify(messageJ);
if (socket.readyState == 1 ){
console.log("sending ", message);
socket.send(message);
} else {
console.log("not sending \n"+ message+ "\n because websocket readyState ="+socket.readyState);
$("#status").text("Server Problem?");
}
}
function sendAndRetryMessage(to,from,type,data, statusText ){
var count = 0;
sendMessage(to,from,type,data);
$("#status").text(statusText);
return window.setInterval( () => {
count++;
sendMessage(to,from,type,data);
var lstatusText = statusText + " - retry "+count+".";
$("#status").text(lstatusText);
},5000);
}
// button actions
function startCall(cid){
lcandyStash = [];
rcandyStash = [];
fid = cid;
pc.createOffer(peerConnectionOfferAnswerCriteria)
.then(desc => {
console.log("offer created",);
desc.sdp = tweakSDP(desc.sdp);
pc.setLocalDescription(desc).then( d => {
offerSender = sendAndRetryMessage(fid, mid, desc.type, desc.sdp, "Trying to connect call")
});
})
.catch(e => console.log("offer not created due to ", e) );
}
function stopCall(){
var dur = Date.now() - startRecTime;
window.setTimeout(function() {window.location="thanks.html?dur="+dur;}, 1000)
localStream.getAudioTracks()[0].stop();
if (initiator) {
statsTick.stop();
} else {
clearInterval(statsTick);
}
$("#status").text("Call ended.");
}
// mute management
function setMute(m){
var mi = $("#muteIcon");
mute = m;
if (m){
mi.removeClass("fa-microphone");
mi.addClass("fa-microphone-slash");
} else {
mi.removeClass("fa-microphone-slash");
mi.addClass("fa-microphone");
}
var audioTracks = localStream.getAudioTracks();
if (audioTracks[0]) {
audioTracks[0].enabled = !m;
}
}
function repaintDuration(){
var diff = Date.now() - startRecTime;
var mins = Math.floor(diff / 60000);
var secs = Math.floor((diff % 60000) / 1000);
$("#duration").text(""+mins+":"+secs);
}
function checkLoss(){
pc.getReceivers()[0].getStats().then(
function(rs) {
rs.forEach( function (d){
if(d.type ==="inbound-rtp"){
var recvd = d.packetsReceived;
var lost = d.packetsLost;
if (lost > lastLoss){
$("#packetLoss").show();
var diffl = lost - lastLoss;
var diffp = recvd -lastRecv;
var pct = Math.ceil(100.0 * diffl /diffp);
$("#countZero").text(""+pct);
} else {
$("#packetLoss").hide();
}
lastLoss = lost;
lastRecv = recvd;
}
if ((d.type ==="candidate-pair")&&(d.nominated)){
$("#delay").text(""+d.currentRoundTripTime);
}
if (d.type === "remote-candidate"){
$("#remote").text(d.candidateType);
}
if (d.type === "local-candidate"){
$("#local").text(d.candidateType);
}
}
)
});
}
// called when webRTC presents us with a fresh remote audio stream
function addStream(stream,kind) {
if (!kind) {
kind = "audio/video";
}
$("#status").text("Call connected. Tap video to enlarge");
console.log("got new stream" + stream + " kind =" + kind);
var me = document.getElementById("them");
me.srcObject = stream;
me.onloadedmetadata = function(e) {
me.play();
me.muted = false;
};
statsTick = window.setInterval(repaintDuration,10000);
window.setInterval(checkLoss,1000);
startRecTime = Date.now();
$("#chosenAction").show();
$("#statsZone").show();
}
// configure local peerconnection and handlers
function setupRTC(){
pc = new RTCPeerConnection(webRTCconfiguration[initiator?"host":"guest"], null);
console.log("created peer connection");
pc.onicecandidate = (e) => {
console.log("local ice candidate", e.candidate);
if (e.candidate != null) {
if (pc.signalingState == 'stable') {
sendMessage(fid, mid, "candidate", e.candidate.candidate);
} else {
console.log("stashing ice candidate");
lcandyStash.push(e.candidate);
}
}
};
pc.oniceconnectionstatechange = (e) => {
console.log("ice state is changed", pc.iceConnectionState);
$("#status").text(pc.iceConnectionState+" connection.");
/*
"new" The ICE agent is gathering addresses or is waiting to be given remote candidates through calls to RTCPeerConnection.addIceCandidate() (or both).
"checking" The ICE agent has been given one or more remote candidates and is checking pairs of local and remote candidates against one another to try to find a compatible match, but has not yet found a pair which will allow the peer connection to be made. It's possible that gathering of candidates is also still underway.
"connected" A usable pairing of local and remote candidates has been found for all components of the connection, and the connection has been established. It's possible that gathering is still underway, and it's also possible that the ICE agent is still checking candidates against one another looking for a better connection to use.
"completed" The ICE agent has finished gathering candidates, has checked all pairs against one another, and has found a connection for all components.
"failed" The ICE candidate has checked all candidates pairs against one another and has failed to find compatible matches for all components of the connection. It is, however, possible that the ICE agent did find compatible connections for some components.
"disconnected" Checks to ensure that components are still connected failed for at least one component of the RTCPeerConnection. This is a less stringent test than "failed" and may trigger intermittently and resolve just as spontaneously on less reliable networks, or during temporary disconnections. When the problem resolves, the connection may return to the "connected" state.
"closed"
*/
if (pc.iceConnectionState === "failed"){
stopCall();
}
if (pc.iceConnectionState === "connected"){
checkLoss();
socket.close();
}
};
// specification of WEBRTC is in flux - so we test to see if ontrack callback exists
if ('ontrack' in pc) {
// if so we use it
pc.ontrack = (event) => {
var stream = event.streams[0];
console.log("got remote track ", event.track.kind);
addStream(stream,event.track.kind);
};
} else {
// if not we use add stream instead
pc.onaddstream = (event) => {
var stream = event.stream;
console.log("got remote stream ", stream.kind);
addStream(stream);
}
}
// use this to determine the state of the 'hangup' button and send any candidates we found quickly
pc.onsignalingstatechange = (evt) => {
console.log("signalling state is ", pc.signalingState);
if (pc.signalingState == 'stable') {
var can;
while (can = lcandyStash.pop()) {
console.log("popping candidate off stash")
sendMessage(fid, mid, "candidate", can.candidate);
}
var act = $("#stopCall");
act.click( _ => stopCall() );
window.onbeforeunload = function() {
return pc.iceConnectionState=="connected" ? "If you leave this page you will end the call." : null;
}
}
};
}
// plumb the local audio together.
function setupAudio() {
var gumConstraints = {audio: true, video: true};
var promise = new Promise(function (resolve, reject) {
navigator.mediaDevices.getUserMedia(gumConstraints)
.then((stream) => {
localStream = stream;
if (pc.addTrack) {
stream.getTracks().forEach(track => {
pc.addTrack(track, stream);
console.log("added local track ", track.id, track.kind);
});
} else {
pc.addStream(stream);
console.log("added local stream");
}
resolve(false);
})
.catch((e) => {
console.log('getUserMedia() error:' + e);
reject(e);
});
});
return promise;
}
function shared() {
setupAudio().then(_ => {
console.log("ready for offer");
$("#status").text("Waiting for guest.");
});
}
function accepted() {
setupAudio().then(_ => {
console.log("ready for offer");
$("#status").text("Mic available");
startCall(cid)
});
}
// decide who we are initiator or recpient.
// notice that the actual call goes in the reverse direction
// the recipient of the invite actually creates the audiobearing peerconnection
// the initiator then accepts this audio - This allows the initiator the chance to
// change their mind, if their circumstances have changed since the invite was sent.
function setRole() {
cid = $.getUrlVar("twoId");
mid = localStorage['twoId'];
//var act = $("#action");
if (!mid) {
var array = new Uint32Array(8);
window.crypto.getRandomValues(array);
var hexCodes = [];
for (var i = 0; i < array.length; i ++ ){
// Using getUint32 reduces the number of iterations needed (we process 4 bytes each time)
var value = array[i];
// toString(16) will give the hex representation of the number without padding
var stringValue = value.toString(16);
// We use concatenation and slice for padding
var padding = '00000000';
var paddedValue = (padding + stringValue).slice(-padding.length)
hexCodes.push(paddedValue);
}
mid = hexCodes.join("").toLowerCase();
console.log("mid =", mid);
localStorage['twoId'] = mid;
}
if (cid == null){
document.location = location.pathname + "?" + "twoId=" + mid ;
// this has the effect of getting our id into the browser bar -
// making it easy to share etc.
} else {
socket = new WebSocket( properties.websocketURL + mid);
socket.onmessage = messageDeal;
socket.onopen = (_) => {
var url = document.location.href;
console.log("href = "+url);
initiator = (mid === cid);
var smodal;
$("#role").text(initiator ? "Host" : "Guest");
$("#status").text("Waiting for connection");
smodal = initiator ? "#share" : "#accept";
$(smodal).modal('show');
setupRTC();
};
socket.onerror = (e) => {
console.log("can't open websocket", e);
$("#status").text("Internet problems ?");
};
socket.onclose = (e) => {
console.log(" websocket closed", e);
//$("#status").text("Server problems ?");
};
}
}
function isFacebookApp() {
var ua = navigator.userAgent || navigator.vendor || window.opera;
return (ua.indexOf("FBAN") > -1) || (ua.indexOf("FBAV") > -1) || (ua.indexOf('Instagram') > -1) ;
}
// some housekeeping
$.extend({
getUrlVars: function(){
var vars = [], hash;
var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
for(var i = 0; i < hashes.length; i++)
{
hash = hashes[i].split('=');
vars.push(hash[0]);
vars[hash[0]] = hash[1];
}
return vars;
},
getUrlVar: function(name){
return $.getUrlVars()[name];
}
});
function isWebrtcSupported() {
// tip of the hat to Janus for this test :
// https://groups.google.com/forum/#!topic/meetecho-janus/lRjYn0C9BYU
// it should detect the horrible mess that is chrome on ios
// and various other ugly captives....
return ('RTCPeerConnection' in window) && ("mediaDevices" in navigator) && ("getUserMedia" in navigator.mediaDevices);
};
$( document ).ready( _ => {
$("#chosenAction").hide();
$("#packetLoss").hide();
$("#statsZone").hide();
if (isFacebookApp()){
$("#status").text("Facebook apps block webrtc in their 'browser' ");
$("#facebookapp").show();
console.log("UGH, facebook. !");
} else {
if (isWebrtcSupported()) {
console.log("I see webRTC !");
$("#status").text("Have webRTC available ");
$("#mute").click(_ => setMute(!mute));
setRole();
} else {
console.log("I don't see webRTC !");
$("#status").text("Dont have webRTC available ");
$('#nowebrtc').modal('show');
}
}
});
</script>
</body>
</html>