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<!DOCTYPE html>
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<html lang="en" style=height:100%>
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<head>
<title> {{{ title }}} - Messenger</title>
<meta http-equiv=X-UA-Compatible content="IE=edge">
<meta content="text/html;charset=utf-8" http-equiv=Content-Type>
<meta name="viewport" content="user-scalable=1.0,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0" />
<meta name=format-detection content="telephone=no">
<meta name="robots" content="noindex,nofollow">
<link type="text/css" href="styles/style.css" media="screen" rel="stylesheet" title="CSS" />
<link type="text/css" href="styles/messenger.css" media="screen" rel="stylesheet" title="CSS" />
<link rel="apple-touch-icon" href="/favicon-303x303.png" />
<script type="text/javascript" src="scripts/common-0.0.1 {{ min }} .js"></script>
<script type="text/javascript" src="scripts/filesaver.min.js"></script>
</head>
<body style="font-family:Arial,Helvetica,sans-serif">
<div id="xtop" style="position:absolute;left:0;right:0;top:0;height:38px;background-color:#036;color:#EEE;box-shadow:3px 3px 10px gray">
<img style="float:left" height="38" src="messenger.png" />
<div style="position:absolute;background-color:#036;right:0;height:38px">
<div id="saveButton" class="icon15 topButton" style="margin-right:4px" title="Save conversation" onclick="saveChatSession()"></div>
<div id="notifyButton" class="icon13 topButton" style="display:none" title="Enable browser notification" onclick="enableNotificationsButtonClick()"></div>
<div id="fileButton" class="icon4 topButton" title="Share a file" style="display:none" onclick="fileButtonClick()"></div>
<div id="camButton" class="icon2 topButton" title="Activate camera & microphone" style="display:none" onclick="camButtonClick()"></div>
<div id="micButton" class="icon6 topButton" title="Activate microphone" style="display:none" onclick="micButtonClick()"></div>
<div id="hangupButton" class="icon11 topRedButton" title="Hang up" style="display:none" onclick="hangUpButtonClick(1)"></div>
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</div>
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<div style="padding-top:9px;padding-left:6px;font-size:20px;display:inline-block"><b><span id="xtitle"></span></b></div>
</div>
<div id="xmiddle" style="position:absolute;left:0;right:0;top:38px;bottom:36px;font-size:18px">
<div id="xmsgparent" style="position:absolute;left:0;right:0;bottom:0;max-height:100%;overflow-y:auto">
<div id="xmsg" style="padding:5px"></div>
<div id="typingIndicator" style="display:none;margin-left:5px;clear:both"><img src="images/3dots-24.gif" srcset="images/3dots-48.gif 2x" /></div>
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</div>
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</div>
<div id="xbottom" style="position:absolute;left:0;right:0;bottom:0px;height:36px;background-color:#036;font-size:18px">
<table style="width:100%">
<tr>
<td>
<input id="xouttext" type="text" style="box-sizing:border-box;width:100%;font-size:18px" onfocus=onUserInputFocus(1) onblur=onUserInputFocus(0) onkeyup="updateLocalOutText()" />
</td>
<td style="width:1px">
<input type="button" id="sendButton" value="Send" style="box-sizing: border-box;float:right;font-size:18px" onclick="xsend(event)" />
</td>
<td style="width:1px">
<input type="button" id="clearButton" value="Clear" style="box-sizing: border-box;float:right;font-size:18px" onclick="displayClear()" />
</td>
</tr>
</table>
</div>
<div id="remoteVideo" style="position:absolute;right:24px;top:45px;width:320px;height:calc(240px + 30px);background-color:gray;border-radius:12px 12px 12px 12px;box-shadow:3px 3px 10px gray;display:none">
<div style="position:absolute;right:0;left:0;top:2.5px;text-align:center">Remote</div>
<video id="remoteVideoCanvas" autoplay style="position:absolute;top:20px;left:0;width:100%;height:calc(100% - 30px);background-color:black" onclick="remotePlay(event)"></video>
<div id="remoteClickToView" style="position:absolute;top:20px;left:0;width:100%;height:calc(100% - 30px);color:white;text-align:center;padding-top:20px;display:none" onclick="remotePlay(event)">Click here to view.</div>
</div>
<div id="localVideo" style="position:absolute;right:24px;top:320px;width:160px;height:calc(120px + 30px);background-color:gray;border-radius:12px 12px 12px 12px;box-shadow:3px 3px 10px gray;display:none">
<div style="position:absolute;right:0;left:0;top:2.5px;text-align:center">Local</div>
<video id="localVideoCanvas" autoplay muted style="position:absolute;top:20px;left:0;right:100%;height:calc(100% - 30px);background-color:black"></video>
</div>
<canvas width="256" height="256" id="remoteImage" style="position:absolute;right:24px;top:45px;width:200px;height:200px;background-color:gray;border-radius:12px 12px 12px 12px;box-shadow:3px 3px 10px gray;display:none" />
<input id="uploadFileInput" type="file" multiple style="display:none">
<script type="text/javascript" onunload="onUnLoad()">
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var userInputFocus = 0;
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var socket = null; // Websocket object
var state = 0; // Connection state. 0 = Disconnected, 1 = Connecting, 2 = Connected.
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var args = XparseUriArgs();
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if (args.key && (isAlphaNumeric(args.key) == false)) { delete args.key; }
if (args.locale && (isAlphaNumeric(args.locale) == false)) { delete args.locale; }
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var pushMessaging = (args.pmt == 1);
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// WebRTC sessions and data, audio and video channels
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var random = Math.random(); // Selected random, larger value initiates WebRTC.
var webrtcSessions = { }; // WebRTC objects: 0 for data, 1 for outbound audio/video, 2 for inbound audio/video
var webchannel = null; // WebRTC data channel
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var localStream = null;
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var remoteStream = null;
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var multiWebRtc = true; // if set to true, multiple WebRTC sessions will be setup. If false, everything uses one session.
var userMediaSupport = 0;
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var notification = null;
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getUserMediaSupport(function (x) { userMediaSupport = x; })
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var meshMessengerTitle = ' {{{ meshMessengerTitle }}} ';
var meshMessengerImage = ' {{{ meshMessengerImage }}} ';
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var remoteUserName = ' {{{ username }}} ';
var remoteUserId = ' {{{ userid }}} ';
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var webrtcconfiguration = ' {{{ webrtconfig }}} ';
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if (webrtcconfiguration == '') { webrtcconfiguration = null; } else { try { webrtcconfiguration = JSON.parse(decodeURIComponent(webrtcconfiguration)); } catch (ex) { console.log('Invalid WebRTC config: "' + webrtcconfiguration + '".'); webrtcconfiguration = null; } }
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var windowFocus = true;
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var chatTextSession = new Date().toString() + '\r\n';
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var localOutText = false;
var remoteOutText = false;
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var remoteImage = false;
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// File transfer state
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var fileUploads = [];
var fileDownloads = { };
var currentFileUpload = null;
var currentFileDownload = null;
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setInterval(resizeVideos, 1000);
function resizeVideos() {
var rheight = 0;
if (remoteStream != null) {
rheight = ((320 * Q('remoteVideoCanvas').videoHeight) / Q('remoteVideoCanvas').videoWidth);
QS('remoteVideo').height = 'calc(' + rheight + 'px + 30px)';
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} else {
if (remoteImage == true) { rheight += 200; }
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}
if (localStream != null) {
QS('localVideo').height = 'calc(' + ((160 * Q('localVideoCanvas').videoHeight) / Q('localVideoCanvas').videoWidth) + 'px + 30px)';
QS('localVideo').top = (rheight + 50 + ((remoteStream != null)?30:0)) + 'px';
}
}
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// Set the title
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var newTitle = '';
if (args.title) { newTitle = decodeURIComponent(args.title); document.title = document.title + ' - ' + decodeURIComponent(args.title); }
else if (meshMessengerTitle == '!') { newTitle = "MeshMessenger"; } else { newTitle = decodeURIComponent(meshMessengerTitle); }
newTitle = newTitle.split(' { 0}').join(decodeURIComponent(remoteUserName)).split(' { 1}').join(decodeURIComponent(remoteUserId));
QH('xtitle', EscapeHtml(newTitle).split(' ').join(' '));
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// Setup web notifications
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try { if (Notification) { QV('notifyButton', Notification.permission != 'granted'); } } catch (ex) { }
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// Track window focus
window.addEventListener('focus', function (event) { windowFocus = true; }, false);
window.addEventListener('blur', function (event) { windowFocus = false; }, false);
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// Listen to drag & drop events
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document.addEventListener('dragover', haltEvent, false);
document.addEventListener('dragleave', haltEvent, false);
document.addEventListener('drop', fileDrop, false);
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document.onclick = function (e) {
if (Notification) { QV('notifyButton', Notification.permission != 'granted'); }
if (notification != null) { notification.close(); notification = null; }
}
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// Trap document key up events
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document.onkeyup = function ondockeypress(e) {
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if (Notification) { QV('notifyButton', Notification.permission != 'granted'); }
if (notification != null) { notification.close(); notification = null; }
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if (state == 2) {
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if ((e.keyCode == 8) && (userInputFocus == 0)) {
// Backspace
var outtext = Q('xouttext').value;
if (outtext.length > 0) { Q('xouttext').value = outtext.substring(0, outtext.length - 1); }
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updateLocalOutText();
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}
}
if (userInputFocus == 0) { haltEvent(e); return false; }
}
// Trap document key presses
document.onkeypress = function ondockeypress(e) {
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if (Notification) { QV('notifyButton', Notification.permission != 'granted'); }
if (notification != null) { notification.close(); notification = null; }
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if ((state == 2) || pushMessaging) {
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if (e.keyCode == 13) {
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// Return
xsend(e);
} else {
// Any other key
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if ((userInputFocus == 0) && (e.key.length == 1)) { Q('xouttext').value = Q('xouttext').value + e.key; updateLocalOutText(); }
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}
}
if (userInputFocus == 0) { haltEvent(e); return false; }
}
function onUserInputFocus(x) { userInputFocus = x; }
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function displayClear() { chatTextSession = new Date().toString() + '\r\n'; QH('xmsg', ''); cancelAllFileTransfers(); fileUploads = [], fileDownloads = { }; }
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// Polyfill FileReader if needed
if (!FileReader.prototype.readAsBinaryString) {
FileReader.prototype.readAsBinaryString = function (fileData) {
var binary = '', self = this, reader = new FileReader();
reader.onload = function (e) {
var bytes = new Uint8Array(reader.result);
for (var i = 0; i < bytes.byteLength; i++) { binary += String.fromCharCode(bytes[i]); }
self.onload( { target: { result: binary } });
}
reader.readAsArrayBuffer(fileData);
}
}
// Detect if microphone & camera are present
// 0 = nomedia, 1 = miconly, 2 = mic&cam
function getUserMediaSupport(func) {
try {
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navigator.mediaDevices.enumerateDevices().then(function (devices) {
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try {
var mic = 0, cam = 0;
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devices.forEach(function (device) {
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if (device.kind === 'audioinput') { mic = 1; }
if (device.kind === 'videoinput') { cam = 1; }
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});
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if (mic == 0) { func(0); }
func(mic + cam);
} catch (ex) { }
})
} catch (ex) { }
}
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// Display a control message
function displayControl(msg) {
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chatTextSession += ((new Date()).toLocaleTimeString() + ' - ' + "Control" + '> ' + msg + '\r\n');
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QA('xmsg', '<div style="clear:both"><div style="color:gray;float:left;margin-bottom:2px">' + EscapeHtml(msg) + '</div><div></div></div>');
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Q('xmsgparent').scrollTop = Q('xmsgparent').scrollHeight;//Q('xmsg').scrollHeight;
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}
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function displayLocalVideo(active) { QV('localVideo', active); adjustVideoWindows(); }
function displayRemoteVideo(active) { QV('remoteVideo', active); adjustVideoWindows(); }
function adjustVideoWindows() {
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var lv = (QS('localVideo')['display'] != 'none');
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var rv = (QS('remoteVideo')['display'] != 'none');
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QV('remoteImage', (remoteImage == true) && (rv == false))
if (rv) { QS('localVideo')['top'] = '320px'; }
else if (remoteImage) { QS('localVideo')['top'] = '320px'; }
else { QS('localVideo')['top'] = '45px'; }
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resizeVideos();
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}
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// Display a message from the remote user
function displayRemote(msg) {
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chatTextSession += ((new Date()).toLocaleTimeString() + ' - ' + "Remote" + '> ' + msg + '\r\n');
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QA('xmsg', '<div style="clear:both"><div class="remoteBubble">' + EscapeHtml(msg) + '</div><div></div></div>');
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Q('xmsgparent').scrollTop = Q('xmsgparent').scrollHeight;
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// If web notifications are granted, use it.
if (Notification) { QV('notifyButton', Notification.permission != 'granted'); }
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if (Notification && (windowFocus == false) && (Notification.permission == 'granted')) {
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if (notification != null) { notification.close(); notification = null; }
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notification = new Notification(Q('xtitle').innerHTML.split(' ').join(' '), { body: msg });
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}
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}
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// Display and send a message from the local user
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function xsend(event) {
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if (notification != null) { notification.close(); notification = null; }
if (Notification) { QV('notifyButton', Notification.permission != 'granted'); }
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var outtext = Q('xouttext').value;
if (outtext.length > 0) {
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chatTextSession += ((new Date()).toLocaleTimeString() + ' - ' + "Local" + '> ' + outtext + '\r\n');
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QA('xmsg', '<div style="clear:both"><div class="localBubble">' + EscapeHtml(outtext) + '</div><div></div></div>');
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Q('xmsgparent').scrollTop = Q('xmsgparent').scrollHeight;
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if ((state == 2) || pushMessaging) { send( { action: 'chat', msg: outtext }); }
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Q('xouttext').value = '';
Q('xouttext').focus();
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localOutText = false;
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}
}
function haltEvent(e) { if (e.preventDefault) e.preventDefault(); if (e.stopPropagation) e.stopPropagation(); return false; }
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// Update user controls
function updateControls() {
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QE('sendButton', (state == 2) || pushMessaging);
QE('clearButton', (state == 2) || pushMessaging);
QE('xouttext', (state == 2) || pushMessaging);
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QV('fileButton', state == 2);
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QV('camButton', webchannel && webchannel.ok && !localStream && (userMediaSupport == 2));
QV('micButton', webchannel && webchannel.ok && !localStream && (userMediaSupport > 0));
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QV('hangupButton', webchannel && webchannel.ok && localStream);
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updateLocalOutText();
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}
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// This is the WebRTC setup
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function startWebRTC(id, startDataChannel) {
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if ((webrtcSessions[0] != null) && (multiWebRtc == false)) { return webrtcSessions[0]; };
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// Setup the WebRTC object
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var webrtc = null;
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if (typeof RTCPeerConnection !== 'undefined') { webrtc = new RTCPeerConnection(webrtcconfiguration); }
else if (typeof webkitRTCPeerConnection !== 'undefined') { webrtc = new webkitRTCPeerConnection(webrtcconfiguration); }
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if (webrtc == null) return null; // No WebRTC support.
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webrtc.id = id;
webrtc.onicecandidate = function (e) { try { if (e.candidate != null) { sendws( { action: 'webRtcIce', ice: e.candidate, id: this.id }); } } catch (ex) { } }
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webrtc.oniceconnectionstatechange = function () { if (webrtc && webrtc.iceConnectionState == 'failed') { webrtc.close(); if (webrtcSessions[webrtc.id]) { delete webrtcSessions[webrtc.id]; } } }
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webrtc.ondatachannel = function (ev) {
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//console.log('ondatachannel');
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webchannel = ev.channel;
webchannel.onmessage = function (event) { processMessage(event.data, 2); };
webchannel.onopen = function () { webchannel.ok = true; updateControls(); sendws( { action: 'rtcSwitch', v: 0 }); };
webchannel.onclose = function (event) { if (webchannel && webchannel.ok) { disconnect(); } else { hangUpButtonClick(0); } }
}
webrtc.onnegotiationneeded = function (event) {
if (webrtc.holdTimer != null) return;
webrtc.holdTimer = setTimeout(function () { // This time is needed to keep Chrome from being to excited. Wait until we add all tracks before kicking this off.
//console.log('onnegotiationneeded', id);
webrtc.holdTimer = null;
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webrtc.createOffer(function (offer) { /*console.log('offer', offer.sdp.length);*/ webrtc.setLocalDescription(offer, function () { sendws( { action: 'webRtcSdp', sdp: offer, id: id }); }, function () { hangUpButtonClick(id); }); }, function () { hangUpButtonClick(id); });
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}, 20);
}
webrtc.ontrack = function (event) {
//console.log('ontrack', id);
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QV('remoteClickToView', false);
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var video = Q('remoteVideoCanvas');
video.srcObject = remoteStream = event.streams[0];
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video.onloadedmetadata = function (e) {
var promise = video.play();
if (promise !== undefined) {
promise.then(function() {
// Video start ok
}).catch(function(err) {
// Video start error, display a play button
QV('remoteClickToView', true);
})
}
};
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displayRemoteVideo(true);
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}
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//webrtc.onremovetrack = function (event) { console.log('onremovetrack'); }
//webrtc.onicegatheringstatechange = function (event) { console.log('onicegatheringstatechange', event); }
//webrtc.onsignalingstatechange = function (event) { console.log('onsignalingstatechange', event); }
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// Initiate the WebRTC offer or handle the offer from the peer.
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if (startDataChannel == true) {
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webchannel = webrtc.createDataChannel('DataChannel', { }); // { ordered: false, maxRetransmits: 2 }
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webchannel.onmessage = function (event) { processMessage(event.data, 2); };
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webchannel.onopen = function () { webchannel.ok = true; updateControls(); sendws( { action: 'rtcSwitch', v: 0 }); };
webchannel.onclose = function (event) { if (webchannel && webchannel.ok) { disconnect(); } else { hangUpButtonClick(0); } }
}
webrtcSessions[id] = webrtc;
return webrtc;
}
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function remotePlay() { QV('remoteClickToView', false); Q('remoteVideoCanvas').play(); }
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function webRtcHandleOffer(id, description) {
//console.log('webRtcHandleOffer', description.sdp.length);
var webrtc = webrtcSessions[id];
if (webrtc) {
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webrtc.setRemoteDescription(new RTCSessionDescription(description), function () {
if (description.type == 'offer') {
webrtc.createAnswer(function (answer) {
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webrtc.setLocalDescription(answer, function (a, b) {
try { sendws( { action: 'webRtcSdp', sdp: answer, id: id }); } catch (ex) { }
}, function () { hangUpButtonClick(id); });
}, function () { hangUpButtonClick(id); });
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}
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}, function () { hangUpButtonClick(id); });
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}
}
// Indicate to peer that data traffic will no longer be sent over websocket and start holding traffic.
function performWebRtcSwitch() {
if (webchannel && webchannel.ok) { sendws( { action: 'rtcSwitch', v: 1 }); webchannel.xoutBuffer = []; }
}
// Disconnect everything
function disconnect() {
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if (state > 0) { displayControl("Connection closed."); }
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if (state > 1) { setTimeout(start, 500); }
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cancelAllFileTransfers();
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hangUpButtonClick(0, true); // Data channel
hangUpButtonClick(1, true); // Local audio/video
hangUpButtonClick(2, true); // Remote audio/video
if (socket != null) { socket.close(); socket = null; }
updateControls();
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state = 0;
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remoteImage = false;
QV('remoteImage', false);
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updateLocalOutText();
updateRemoteOutText();
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}
// Send data over the current transport (WebRTC first)
function send(data) {
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if ((state != 2) && (pushMessaging == false)) return; // If not in connected state, ignore this.
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if (typeof data == 'object') { data = JSON.stringify(data); } // If this is an object, convert it to a string.
if (webchannel && webchannel.ok) { if (webchannel.xoutBuffer != null) { webchannel.xoutBuffer.push(data); } else { webchannel.send(data); } } // If WebRTC channel is possible, use it or hold until we can use it.
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else { if (socket != null) { try { socket.send(data); } catch (ex) { } } } // If a websocket channel is present, use that.
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}
// Send data over the websocket transport (WebSocket only)
function sendws(data) {
if (state != 2) return;
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//console.log('SEND', data);
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if (typeof data == 'object') { data = JSON.stringify(data); }
if (socket != null) { socket.send(data); }
}
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// WebRTC id switcher (0 -> 0, 1 -> 2, 2 -> 1)
function webRtcIdSwitch(id) { if (id == 0) { return 0; } return 3 - id; }
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function drawRemoteImage(imageBase64) {
var canvas = Q('remoteImage'), context = canvas.getContext('2d'), img = new Image();
img.onload = function () { context.drawImage(this, 0, 0, canvas.width, canvas.height); remoteImage = true; adjustVideoWindows(); }
img.src = imageBase64;
}
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// Process incoming messages
function processMessage(data, transport) {
if (typeof data == 'string') {
try { data = JSON.parse(data); } catch (ex) { console.log('Unable to parse', data); return; }
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//console.log('RECV', data);
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// Handle control command
if (data.ctrlChannel == '102938') {
switch (data.type) {
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case 'image': { drawRemoteImage(data.image); break; }
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case 'ping': { send( { ctrlChannel: '102938', type: 'pong' }); break; }
case 'pong': { break; }
}
return;
}
// Handle command
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switch (data.action) {
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case 'chat': { displayRemote(data.msg); updateRemoteOutText(false); break; } // Incoming chat message.
case 'outtext': { updateRemoteOutText(data.value); break; }
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case 'ctrl': {
if (data.value == 1) { displayControl("Sent as push notification."); }
else if (data.value == 2) { displayControl("Push notification failed."); }
if (data.msg != null) { displayControl(msg); }
break;
}
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case 'random': { if (random > data.random) { startWebRTC(0, true); } break; } // If we have a larger random value, we start WebRTC.
case 'webRtcSdp': { if (!webrtcSessions[webRtcIdSwitch(data.id)]) { startWebRTC(webRtcIdSwitch(data.id), false); } webRtcHandleOffer(webRtcIdSwitch(data.id), data.sdp); break; } // Remote WebRTC offer or answer.
case 'webRtcIce': { var webrtc = webrtcSessions[webRtcIdSwitch(data.id)]; if (webrtc) { try { webrtc.addIceCandidate(new RTCIceCandidate(data.ice)); } catch (ex) { } } break; } // Remote ICE candidate
case 'videoStop': { hangUpButtonClick(webRtcIdSwitch(data.id), true); break; }
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case 'rtcSwitch': { // WebRTC switch over commands.
switch (data.v) {
case 0: { performWebRtcSwitch(); break; } // Other side is ready for switch over to WebRTC
case 1: { sendws( { action: 'rtcSwitch', v: 2 }); break; } // Other side no longer sending data on websocket, confirm we got the end marker
case 2: { for (var i in webchannel.xoutBuffer) { webchannel.send(webchannel.xoutBuffer[i]); } delete webchannel.xoutBuffer; break; } // Send any pending data over WebRTC and start using WebRTC with all traffic
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default: { console.log('Unknown rtcSwitch value: ' + data.action); break; } //
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}
break;
}
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case 'file': { startFileDownload(data); break; }
case 'fileUploadCancel': { cancelFileTransfer(data.id); break; }
case 'fileUploadStart': {
if (fileDownloads[data.id]) {
currentFileDownload = fileDownloads[data.id];
currentFileDownload.data = '';
changeFileInfo(data.id, 2, 0);
continueFileDownload(data);
send( { action: 'fileUploadAck', id: data.id });
} break;
}
case 'fileUploadEnd': {
if (currentFileDownload && (currentFileDownload.id == data.id)) {
changeFileInfo(data.id, 3, 200);
currentFileDownload.done = 1;
currentFileDownload = null;
send( { action: 'fileUploadAck', id: data.id });
}
currentFileDownload = null;
break;
}
case 'fileUploadAck': {
continueFileUpload();
break;
}
case 'fileData': {
if (currentFileDownload && (currentFileDownload.id == data.id)) {
currentFileDownload.data += data.data;
changeFileInfo(data.id, 2, (currentFileDownload.data.length * 200 / currentFileDownload.size));
send( { action: 'fileUploadAck', id: data.id });
}
break;
}
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default: { console.log('Unhandled object data', data); break; }
}
} else {
console.log('Unhandled data', typeof data, data);
}
}
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// File sharing button
function fileButtonClick() {
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var chooser = Q('uploadFileInput');
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if (chooser.getAttribute('eventset') != 1) {
chooser.setAttribute('eventset', '1');
chooser.addEventListener('change', fileSelect, false);
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}
chooser.value = null;
chooser.click();
}
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// User selected one or more files to upload to remote user.
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function fileSelect() {
if (state != 2) return;
var x = Q('uploadFileInput');
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if (x.files.length > 10) {
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displayControl("Limit of 10 file uploads at the same time.");
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} else {
for (var i = 0; i < x.files.length; i++) {
if (x.files[i].size > 0) {
var reader = new FileReader();
reader.onload = function (e) { this.xfile.data = e.target.result; startFileUpload(this.xfile); };
reader.xfile = x.files[i];
reader.readAsBinaryString(x.files[i]);
}
}
}
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}
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// User drag & droped one or more files to upload to remote user.
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function fileDrop(e) {
haltEvent(e);
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if ((state != 2) || (e.dataTransfer == null)) return;
if (e.dataTransfer.files.length > 10) {
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displayControl("Limit of 10 file uploads at the same time.");
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} else {
for (var i = 0; i < e.dataTransfer.files.length; i++) {
if (e.dataTransfer.files[i].size > 0) {
var reader = new FileReader();
reader.onload = function (e) { this.xfile.data = e.target.result; startFileUpload(this.xfile); };
reader.xfile = e.dataTransfer.files[i];
reader.readAsBinaryString(e.dataTransfer.files[i]);
}
}
}
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}
function startFileUpload(file) {
if (state != 2) return;
file.id = Math.random();
fileUploads.push(file);
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chatTextSession += ((new Date()).toLocaleTimeString() + ' - ' + "Upload" + '> ' + file.name + ' (' + file.size + ' ' + "bytes" + ')\r\n');
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QA('xmsg', '<div style="clear:both"></div><div id="FILEUP-' + file.id + '" class="localBubble" style="width:240px;cursor:pointer" onclick="cancelFileTransfer(\'' + file.id + '\')"><div id="FILEUP-ICON-' + file.id + '" class="fileicon" style="float:left;width:32px;height:32px"></div><div><div id="FILEUP-NAME-' + file.id + '" style="height:16px;overflow:hidden;white-space:nowrap;" title="' + file.name + '">' + file.name + '</div><div style="width:200px;background-color:lightgray;margin-left:32px;border-radius:3px;margin-top:3px;height:11px"><div id="FILEUP-PROGRESS-' + file.id + '" style="width:0px;background-color:green;border-radius:3px;height:11px"> </div></div></div></div>');
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Q('xmsgparent').scrollTop = Q('xmsgparent').scrollHeight;
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send( { action: 'file', size: file.size, id: file.id, type: file.type, name: file.name });
if (currentFileUpload == null) continueFileUpload();
}
function startFileDownload(file) {
if (state != 2) return;
fileDownloads[file.id] = file;
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chatTextSession += ((new Date()).toLocaleTimeString() + ' - ' + "Download" + '> ' + file.name + ' (' + file.size + ' ' + "bytes" + ')\r\n');
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QA('xmsg', '<div style="clear:both"></div><div id="FILEUP-' + file.id + '" class="remoteBubble" style="width:240px;cursor:pointer" onclick="saveFileTransfer(\'' + file.id + '\')"><div id="FILEUP-ICON-' + file.id + '" class="fileicon" style="float:left;width:32px;height:32px"></div><div><div id="FILEUP-NAME-' + file.id + '" style="height:16px;overflow:hidden;white-space:nowrap;" title="' + file.name + '">' + file.name + '</div><div style="width:200px;background-color:lightgray;margin-left:32px;border-radius:3px;margin-top:3px;height:11px"><div id="FILEUP-PROGRESS-' + file.id + '" style="width:0px;background-color:green;border-radius:3px;height:11px"> </div></div></div></div>');
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Q('xmsgparent').scrollTop = Q('xmsgparent').scrollHeight;
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}
// Change the file icon and progress
function changeFileInfo(id, icon, progress, progressColor) {
if (icon) {
Q('FILEUP-ICON-' + id).classList.remove('fileicon');
Q('FILEUP-ICON-' + id).classList.remove('fileiconx');
Q('FILEUP-ICON-' + id).classList.remove('fileicontransfer');
Q('FILEUP-ICON-' + id).classList.remove('fileicondone');
Q('FILEUP-ICON-' + id).classList.add(['fileicon', 'fileiconx', 'fileicontransfer', 'fileicondone'][icon]);
}
if (progress) { QS('FILEUP-PROGRESS-' + id)['width'] = progress + 'px'; }
if (progressColor) { QS('FILEUP-PROGRESS-' + id)['background-color'] = progressColor; }
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}
// Convert a string into a blob
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function data2blob(data) {
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var bytes = new Array(data.length);
for (var i = 0; i < data.length; i++) bytes[i] = data.charCodeAt(i);
return new Blob([new Uint8Array(bytes)]);
};
function saveFileTransfer(id) {
var f = fileDownloads[id];
if (f && f.done == 1) { saveAs(data2blob(f.data), f.name); }
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}
function cancelFileTransfer(id) {
if ((currentFileUpload != null) && (currentFileUpload.id == id)) { currentFileUpload = null; }
if ((currentFileDownload != null) && (currentFileDownload.id == id)) { currentFileDownload = null; }
var found = false;
if (fileDownloads[id] && (fileDownloads[id].done != 1)) {
delete fileDownloads[id];
found = true;
} else {
for (var i in fileUploads) {
if (fileUploads[i].id == id) {
send( { action: 'fileUploadCancel', id: id });
fileUploads.splice(i, 1);
found = true;
break;
}
}
}
if (found) { changeFileInfo(id, 1, 200, 'gray'); } // Only cancel a file if it was in the file queue.
}
function cancelAllFileTransfers() {
for (var i in fileDownloads) { cancelFileTransfer(fileDownloads[i].id); }
for (var i in fileUploads) { cancelFileTransfer(fileUploads[i].id); }
}
function continueFileUpload() {
if (currentFileUpload == null) {
// Select the next file to upload
if (fileUploads.length == 0) { return; } // Nothing to do
currentFileUpload = fileUploads[0];
currentFileUpload.ptr = 0;
// Indicate that we are sending this file
send( { action: 'fileUploadStart', size: currentFileUpload.size, id: currentFileUpload.id, type: currentFileUpload.type, name: currentFileUpload.name });
} else {
if (currentFileUpload.size <= currentFileUpload.ptr) {
// If we are done, send the end marker
send( { action: 'fileUploadEnd', size: currentFileUpload.size, id: currentFileUpload.id, type: currentFileUpload.type, name: currentFileUpload.name });
changeFileInfo(currentFileUpload.id, 3, 200);
fileUploads.splice(0, 1);
currentFileUpload = null;
continueFileUpload(); // Send the next file
} else {
// Send the next block
var nextBlockLen = Math.min(4000, currentFileUpload.data.length - currentFileUpload.ptr);
var data = currentFileUpload.data.substring(currentFileUpload.ptr, currentFileUpload.ptr + nextBlockLen);
send( { action: 'fileData', id: currentFileUpload.id, data: data });
currentFileUpload.ptr += nextBlockLen;
changeFileInfo(currentFileUpload.id, 0, (currentFileUpload.ptr * 200 / currentFileUpload.size));
}
}
}
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function continueFileDownload(msg) {
send( { action: 'fileUploadAck', id: msg.id });
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}
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// Toggle notification
function enableNotificationsButtonClick() {
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if (Notification) { Notification.requestPermission().then(function (permission) { QV('notifyButton', permission != 'granted'); }); }
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return false;
}
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// Camera button
function camButtonClick() {
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if (localStream == null) { startLocalStream( { video: true, audio: true }); }
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}
// Microphone
function micButtonClick() {
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if (localStream == null) { startLocalStream( { video: false, audio: true }); }
}
function hangUpButtonClick(id, fromRemote) {
//console.log('hangUpButtonClick', id);
var localVideo = Q('localVideoCanvas');
var remoteVideo = Q('remoteVideoCanvas');
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var webrtc = webrtcSessions[(multiWebRtc == true)? id : 0];
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if ((id == 0) && (webchannel != null)) { try { webchannel.close(); } catch (e) { } webchannel = null; }
if (webrtc) {
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if ((multiWebRtc == true) || (id == 0)) {
webrtc.ontrack = null;
webrtc.onremovetrack = null;
webrtc.onremovestream = null;
webrtc.onnicecandidate = null;
webrtc.oniceconnectionstatechange = null;
webrtc.onsignalingstatechange = null;
webrtc.onicegatheringstatechange = null;
webrtc.onnotificationneeded = null;
}
if ((id == 1) && localStream) { var tracks = localStream.getTracks(); for (var i in tracks) { tracks[i].stop(); } localStream = null; }
if ((id == 2) && remoteStream) { var tracks = remoteStream.getTracks(); for (var i in tracks) { tracks[i].stop(); } remoteStream = null; }
if ((multiWebRtc == true) || (id == 0)) {
webrtc.close();
delete webrtcSessions[id];
}
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}
if (id == 1) {
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localVideo.removeAttribute('src');
localVideo.removeAttribute('srcObject');
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if (localStream != null) { localStream = null; }
displayLocalVideo(false);
} else if (id == 2) {
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remoteVideo.removeAttribute('src');
remoteVideo.removeAttribute('srcObject');
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displayRemoteVideo(false);
}
if (fromRemote != true) { send( { action: 'videoStop', id: id }); }
updateControls();
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}
// Setup local audio/video
function startLocalStream(constraints) {
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var channel = (multiWebRtc == true) ? 1 : 0;
if (localStream != null) return;
if ((multiWebRtc == true) && (webrtcSessions[1] != null)) return;
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if (navigator.mediaDevices.getUserMedia) {
localStream = 1;
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updateControls();
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navigator.mediaDevices.getUserMedia(constraints)
.then(function (stream) {
localStream = stream;
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var tracks = localStream.getTracks();
var webrtc = startWebRTC(channel);
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if (constraints.video == true) {
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var video = Q('localVideoCanvas');
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video.srcObject = stream;
video.onloadedmetadata = function (e) { video.play(); };
displayLocalVideo(true);
}
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for (var i in tracks) { webrtc.addTrack(tracks[i], localStream); }
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}, function (err) {
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displayControl(err.message + '.');
hangUpButtonClick(1);
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});
}
}
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// This is the main start
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function start() {
// Get started
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updateControls();
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if ((typeof args.id == 'string') && (args.id.length > 0)) {
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var url = window.location.protocol.replace('http', 'ws') + '//' + window.location.host + window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/')) + '/meshrelay.ashx?id=' + args.id;
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if ((args.auth != null) && (args.auth != '')) { url += '&auth=' + args.auth; }
socket = new WebSocket(url);
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socket.onopen = function () { state = 1; displayControl("Waiting for other user..."); }
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socket.onerror = function (e) { /*console.error(e);*/ }
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socket.onclose = function () { disconnect(); }
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socket.onmessage = function (msg) {
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if ((state < 2) && (typeof msg.data == 'string') && ((msg.data == 'c') || (msg.data == 'cr'))) {
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hangUpButtonClick(0, true);
hangUpButtonClick(1, true);
hangUpButtonClick(2, true);
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displayControl("Connected.");
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state = 2;
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updateControls();
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sendws( { action: 'random', random: random }); // Send a random number. Higher number starts the WebRTC session.
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updateLocalOutText();
updateRemoteOutText();
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return;
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}
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if (msg.data[0] == ' { ') { processMessage(msg.data, 1); }
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}
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} else {
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displayControl("Error: No connection key specified.");
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}
}
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function saveChatSession() {
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saveAs(data2blob(chatTextSession), "ChatSession");
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}
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start();
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function onUnLoad() {
for (var i = 0; i < 3; i++) { if (webrtcSessions[i]) { webrtcSessions[i].close(); delete webrtcSessions[i]; } }
if (webchannel != null) { try { webchannel.close(); } catch (e) { } webchannel = null; }
if (socket != null) { try { socket.close(); } catch (e) { } socket = null; }
}
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function isSafeString3(str) { return ((typeof str == 'string') && (str.indexOf('<') == -1) && (str.indexOf('>') == -1) && (str.indexOf('&') == -1) && (str.indexOf('"') == -1) && (str.indexOf('\'') == -1) && (str.indexOf('+') == -1) && (str.indexOf('(') == -1) && (str.indexOf(')') == -1) && (str.indexOf('#') == -1) && (str.indexOf(':') == -1)) };
// Parse URL arguments, only keep safe values
function XparseUriArgs() {
var href = window.document.location.href;
if (href.endsWith('#')) { href = href.substring(0, href.length - 1); }
var name, r = { }, parsedUri = href.split(/[\?&|]/);
parsedUri.splice(0, 1);
for (var j in parsedUri) {
var arg = parsedUri[j], i = arg.indexOf('=');
name = arg.substring(0, i);
r[name] = arg.substring(i + 1);
if (!isSafeString3(r[name])) { delete r[name]; } else { var x = parseInt(r[name]); if (x == r[name]) { r[name] = x; } }
}
return r;
}
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function updateLocalOutText() {
var l = Q('xouttext').value;
if (((state != 2) || (l == '')) && (localOutText == true)) {
localOutText = false;
send( { action: 'outtext', value: false });
} else if ((state == 2) && ((l != '') && (localOutText == false))) {
localOutText = true;
send( { action: 'outtext', value: true });
}
}
function updateRemoteOutText(newState) {
//console.log('updateRemoteOutText', newState);
if (state != 2) { newState = false; }
if (remoteOutText != newState) { remoteOutText = newState; QV('typingIndicator', remoteOutText); }
}
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</script>
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</body>
</html>
