<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
reliable-chat - multipath chat
Copyright (C) 2012 Scott Worley <sworley@chkno.net>
Copyright (C) 2012 Jason Hibbs <skitch@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
-->
<head>
<title>Reliable Chat</title>
<style type="text/css"><!--/*--><![CDATA[/*><!--*/
html, body {
width: 99.9%;
height: 100%;
margin: 0;
padding: 0;
background-color: #293134;
color: silver;
font-family: monospace;
}
#container {
height: 100%;
}
#status {
width: 100%;
text-align: right;
background-color: #293134;
padding: 5px 5px 5px 0px;
}
#client {
width: 98.5%;
padding: 0px 0px 0px 5px;
height: 50px;
position: fixed;
bottom: 0;
}
#input {
width: 100%;
background-color: #293134;
}
#say { width: 100% }
#history {
padding: 0px 5px 55px 5px;
vertical-align: bottom
}
img { width: 1px; height: 1px; }
iframe { display: none }
#status span { margin-right: 10px; }
#status span.sad {
background-color: #f00;
color: #fff;
border: 1px solid black;
border-radius: 5px;
padding-left: 5px;
padding-right: 5px;
}
#status span.happy {
background-color: #0f0;
color: #000;
border: 1px solid black;
border-radius: 5px;
padding-left: 5px;
padding-right: 5px;
}
/*]]>*/--></style>
<script type="text/javascript"><!--//--><![CDATA[//><!--
var servers = ['chkno.net', 'rc2.chkno.net', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];
var session = Math.random();
var since = {};
var seen = {};
function rcnick() {
var nick = localStorage.getItem("nick");
if (nick) {
return nick;
}
return 'anonymous';
}
function rcsetnick(new_nick) {
localStorage.setItem("nick", new_nick);
}
function rcserverbase(server) {
// Add the default port if server doesn't contain a port number already
if (server.indexOf(":") == -1) {
return "http://" + server + ":21059";
} else {
return "http://" + server;
}
}
function rcchangeserverstatus(server, new_status) {
var statusbar = document.getElementById("status");
var spans = statusbar.getElementsByTagName("span");
for (var i in spans) {
if (spans[i].firstChild && 'data' in spans[i].firstChild && spans[i].firstChild.data == server) {
spans[i].setAttribute("class", new_status);
}
}
}
function rcaddmessagetohistory(message) {
var d = document.createElement("div");
d.appendChild(document.createTextNode(message));
var h = document.getElementById("history");
h.appendChild(d);
window.scrollTo(0, document.body.scrollHeight);
return d;
}
function make_seen_key(id, text) {
return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
}
function rcreceivemessages(server, messages) {
for (var i in messages) {
var seen_key = make_seen_key(messages[i]['ID'], messages[i]['Text']);
if (!(seen_key in seen)) {
seen[seen_key] = true;
rcaddmessagetohistory(messages[i]['Text']);
for (var i in servers) {
rcchangeserverstatus(servers[i], "sad");
}
}
rcchangeserverstatus(server, "happy");
}
}
function rcfetch(server) {
var delay = 10000; // TODO: Exponential backoff
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (this.readyState == this.DONE) {
if (this.status == 200) {
var rtxt = this.responseText;
if (rtxt != null) {
var messages = JSON.parse(rtxt);
if (messages != null) {
rcreceivemessages(server, messages);
delay = 40;
if (messages.length >= 1 && "Time" in messages[messages.length-1]) {
since[server] = messages[messages.length-1]["Time"];
}
}
}
}
window.setTimeout(rcfetch, delay, server);
}
}
var uri = rcserverbase(server) + "/fetch";
if (server in since) {
uri += '?since="' + since[server] + '"';
}
xhr.open("GET", uri);
xhr.send();
}
function rcconnect() {
for (var i in servers) {
rcfetch(servers[i]);
// Status bar entry
var status_indicator = document.createElement("span");
status_indicator.appendChild(document.createTextNode(servers[i]));
status_indicator.setAttribute("class", "sad");
document.getElementById("status").appendChild(status_indicator);
}
}
function rcsend(d, message) {
var id = new Date().getTime() + "-" + session + "-" + Math.random();
seen[make_seen_key(id, message)] = true;
var path = "/speak" +
"?id=" + encodeURIComponent(id) +
"&text=" + encodeURIComponent(message);
for (var i in servers) {
var uri = rcserverbase(servers[i]) + path;
var img = document.createElement("img");
img.setAttribute("src", uri);
d.appendChild(img);
}
}
function rckeydown(event) {
if (event.keyCode == 13) {
var input = document.input.say.value;
document.input.say.value = "";
// Check nick change
var message;
var re = /^\/nick (.*)/;
var match = re.exec(input);
if (match) {
message = "*** " + rcnick() + " is now known as " + match[1];
rcsetnick(match[1]);
} else {
message = "<" + rcnick() + "> " + input;
}
// /me support
var message;
var re = /^\/me (.*)/;
var match = re.exec(input);
var inputme = input.substring(4);
if (match) {
message = "* " + rcnick() + " " + inputme;
} else {
message = "<" + rcnick() + "> " + input;
}
// Say the message
var d = rcaddmessagetohistory(message);
rcsend(d, message);
}
}
//--><!]]></script>
</head>
<body onload="rcconnect()">
<div id="container">
<div id="history"></div>
<div id="client">
<div id="input">
<form name="input" onsubmit="return false" autocomplete="off">
<input id="say" onkeydown="return rckeydown(event)" autocomplete="off" autofocus="autofocus"></input>
</form></div>
<div id="status"> </div>
</div>
</div>
</body>
</html>