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<html>
<head>
<title>PeerConnection server test page</title>
<script>
var request = null;
var hangingGet = null;
var localName;
var server;
var my_id = -1;
var other_peers = {};
var message_counter = 0;
function trace(txt) {
var elem = document.getElementById("debug");
elem.innerHTML += txt + "<br>";
}
function handleServerNotification(data) {
trace("Server notification: " + data);
var parsed = data.split(',');
if (parseInt(parsed[2]) != 0)
other_peers[parseInt(parsed[1])] = parsed[0];
}
function handlePeerMessage(peer_id, data) {
++message_counter;
var str = "Message from '" + other_peers[peer_id] + "' ";
str += "<span id='toggle_" + message_counter + "' onclick='toggleMe(this);' ";
str += "style='cursor: pointer'>+</span><br>";
str += "<blockquote id='msg_" + message_counter + "' style='display:none'>";
str += data + "</blockquote>";
trace(str);
if (document.getElementById("loopback").checked) {
if (data.search("offer") != -1) {
// In loopback mode, if DTLS is enabled, notify the client to disable it.
// Otherwise replace the offer with an answer.
if (data.search("fingerprint") != -1)
data = data.replace("offer", "offer-loopback");
else
data = data.replace("offer", "answer");
}
sendToPeer(peer_id, data);
}
}
function GetIntHeader(r, name) {
var val = r.getResponseHeader(name);
return val != null && val.length ? parseInt(val) : -1;
}
function hangingGetCallback() {
try {
if (hangingGet.readyState != 4)
return;
if (hangingGet.status != 200) {
trace("server error: " + hangingGet.statusText);
disconnect();
} else {
var peer_id = GetIntHeader(hangingGet, "Pragma");
if (peer_id == my_id) {
handleServerNotification(hangingGet.responseText);
} else {
handlePeerMessage(peer_id, hangingGet.responseText);
}
}
if (hangingGet) {
hangingGet.abort();
hangingGet = null;
}
if (my_id != -1)
window.setTimeout(startHangingGet, 0);
} catch (e) {
trace("Hanging get error: " + e.description);
}
}
function startHangingGet() {
try {
hangingGet = new XMLHttpRequest();
hangingGet.onreadystatechange = hangingGetCallback;
hangingGet.ontimeout = onHangingGetTimeout;
hangingGet.open("GET", server + "/wait?peer_id=" + my_id, true);
hangingGet.send();
} catch (e) {
trace("error" + e.description);
}
}
function onHangingGetTimeout() {
trace("hanging get timeout. issuing again.");
hangingGet.abort();
hangingGet = null;
if (my_id != -1)
window.setTimeout(startHangingGet, 0);
}
function signInCallback() {
try {
if (request.readyState == 4) {
if (request.status == 200) {
var peers = request.responseText.split("\n");
my_id = parseInt(peers[0].split(',')[1]);
trace("My id: " + my_id);
for (var i = 1; i < peers.length; ++i) {
if (peers[i].length > 0) {
trace("Peer " + i + ": " + peers[i]);
var parsed = peers[i].split(',');
other_peers[parseInt(parsed[1])] = parsed[0];
}
}
startHangingGet();
request = null;
}
}
} catch (e) {
trace("error: " + e.description);
}
}
function signIn() {
try {
request = new XMLHttpRequest();
request.onreadystatechange = signInCallback;
request.open("GET", server + "/sign_in?" + localName, true);
request.send();
} catch (e) {
trace("error: " + e.description);
}
}
function sendToPeer(peer_id, data) {
if (my_id == -1) {
alert("Not connected");
return;
}
if (peer_id == my_id) {
alert("Can't send a message to oneself :)");
return;
}
var r = new XMLHttpRequest();
r.open("POST", server + "/message?peer_id=" + my_id + "&to=" + peer_id,
false);
r.setRequestHeader("Content-Type", "text/plain");
r.send(data);
r = null;
}
function connect() {
localName = document.getElementById("local").value.toLowerCase();
server = document.getElementById("server").value.toLowerCase();
if (localName.length == 0) {
alert("I need a name please.");
document.getElementById("local").focus();
} else {
document.getElementById("connect").disabled = true;
document.getElementById("disconnect").disabled = false;
document.getElementById("send").disabled = false;
signIn();
}
}
function disconnect() {
if (request) {
request.abort();
request = null;
}
if (hangingGet) {
hangingGet.abort();
hangingGet = null;
}
if (my_id != -1) {
request = new XMLHttpRequest();
request.open("GET", server + "/sign_out?peer_id=" + my_id, false);
request.send();
request = null;
my_id = -1;
}
document.getElementById("connect").disabled = false;
document.getElementById("disconnect").disabled = true;
document.getElementById("send").disabled = true;
}
window.onbeforeunload = disconnect;
function send() {
var text = document.getElementById("message").value;
var peer_id = parseInt(document.getElementById("peer_id").value);
if (!text.length || peer_id == 0) {
alert("No text supplied or invalid peer id");
} else {
sendToPeer(peer_id, text);
}
}
function toggleMe(obj) {
var id = obj.id.replace("toggle", "msg");
var t = document.getElementById(id);
if (obj.innerText == "+") {
obj.innerText = "-";
t.style.display = "block";
} else {
obj.innerText = "+";
t.style.display = "none";
}
}
</script>
</head>
<body>
<input type="checkbox" id="loopback" checked="checked"/> Loopback (just send
received messages right back)<br>
Your name: <input type="text" id="local" value="my_name"/>
<button id="connect" onclick="connect();">Connect</button>
<button disabled="true" id="disconnect"
onclick="disconnect();">Disconnect</button>
<br>
<table><tr><td>
Target peer id: <input type="text" id="peer_id" size="3"/></td><td>
Message: <input type="text" id="message"/></td><td>
<button disabled="true" id="send" onclick="send();">Send</button>
</td></tr></table>
<button onclick="document.getElementById('debug').innerHTML='';">
Clear log</button>
<pre id="debug">
</pre>
<br><hr>
</body>
</html>