]>
git.scottworley.com Git - reliable-chat/blob - webclient/rc.html
1 <!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.1//EN"
2 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
3 <html xmlns=
"http://www.w3.org/1999/xhtml">
5 reliable-chat - multipath chat
6 Copyright (C) 2012 Scott Worley <sworley@chkno.net>
7 Copyright (C) 2012 Jason Hibbs <skitch@gmail.com>
9 This program is free software: you can redistribute it and/or modify
10 it under the terms of the GNU Affero General Public License as
11 published by the Free Software Foundation, either version 3 of the
12 License, or (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU Affero General Public License for more details.
19 You should have received a copy of the GNU Affero General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 <title>Reliable Chat
</title>
24 <style type=
"text/css"><!--/*--><![CDATA[/*
><!--*/
30 background-color: #293134;
32 font-family: monospace;
40 background-color: #293134;
41 padding: 5px 5px 5px 0px;
45 padding: 0px 0px 0px 5px;
52 background-color: #293134;
56 padding: 0px 5px 55px 5px;
57 vertical-align: bottom
59 img { width: 1px; height: 1px; }
60 iframe { display: none }
61 #status span { margin-right: 10px; }
63 background-color: #f00;
65 border: 1px solid black;
71 background-color: #0f0;
73 border: 1px solid black;
79 <script type=
"text/javascript"><!--//--><![CDATA[/
/><!--
80 var servers = ['chkno.net', 'rc2.chkno.net', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];
82 var session = Math.random(); // For outgoing message IDs
83 var since = {}; // server -> time: For fetch?since=
84 var seen = {}; // seen_key -> message
85 // Messages have these fields:
86 // Time: The server timestamp of the first copy to arrive
87 // ID: Some unique string for deduping
88 // Text: The text of the message
89 // UI: The DOM node for this message in the UI
92 var nick = localStorage.getItem("nick");
99 function rcsetnick(new_nick) {
100 localStorage.setItem("nick", new_nick);
103 function rcserverbase(server) {
104 // Add the default port if server doesn't contain a port number already
105 if (server.indexOf(":") == -1) {
106 return "http://" + server + ":21059";
108 return "http://" + server;
112 function rcchangeserverstatus(server, new_status) {
113 var statusbar = document.getElementById("status");
114 var spans = statusbar.getElementsByTagName("span");
115 for (var i in spans) {
116 if (spans[i].firstChild && 'data' in spans[i].firstChild && spans[i].firstChild.data == server) {
117 spans[i].setAttribute("class", new_status);
122 function rcformattime(t) {
124 d = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"][d];
125 var h = t.getHours();
126 var m = t.getMinutes();
127 var s = t.getSeconds();
129 return (x < 10 ? "0" : "") + x;
131 return d + " " + pad(h) + ":" + pad(m) + ":" + pad(s);
134 function rcaddmessagetohistory(message) {
135 message.UI = document.createElement("div");
136 var text = (message.Time ? rcformattime(message.Time) : "") + " " + message.Text;
137 message.UI.appendChild(document.createTextNode(text));
138 var h = document.getElementById("history");
139 h.appendChild(message.UI);
140 window.scrollTo(0, document.body.scrollHeight);
143 function make_seen_key(id, text) {
144 return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
147 function rcreceivemessages(server, messages) {
148 for (var i in messages) {
150 m.Time = new Date(m.Time);
151 var seen_key = make_seen_key(m.ID, m.Text);
152 if (!(seen_key in seen)) {
154 rcaddmessagetohistory(m);
155 for (var i in servers) {
156 rcchangeserverstatus(servers[i], "sad");
159 rcchangeserverstatus(server, "happy");
163 function rcfetch(server) {
164 var delay = 10000; // TODO: Exponential backoff
165 var xhr = new XMLHttpRequest();
166 xhr.onreadystatechange = function() {
167 if (this.readyState == this.DONE) {
168 if (this.status == 200) {
169 var rtxt = this.responseText;
171 var messages = JSON.parse(rtxt);
172 if (messages != null) {
174 if (messages.length >= 1 && "Time" in messages[messages.length-1]) {
175 since[server] = messages[messages.length-1].Time;
177 rcreceivemessages(server, messages);
181 window.setTimeout(rcfetch, delay, server);
184 var uri = rcserverbase(server) + "/fetch";
185 if (server in since) {
186 uri += '?since="' + since[server] + '"';
188 xhr.open("GET", uri);
192 function rcconnect() {
193 for (var i in servers) {
196 var status_indicator = document.createElement("span");
197 status_indicator.appendChild(document.createTextNode(servers[i]));
198 status_indicator.setAttribute("class", "sad");
199 document.getElementById("status").appendChild(status_indicator);
203 function rcsend(d, message) {
204 var id = new Date().getTime() + "-" + session + "-" + Math.random();
205 seen[make_seen_key(id, message)] = message;
206 var path = "/speak" +
207 "?id=" + encodeURIComponent(id) +
208 "&text=" + encodeURIComponent(message);
209 for (var i in servers) {
210 var uri = rcserverbase(servers[i]) + path;
211 var img = document.createElement("img");
212 img.setAttribute("src", uri);
217 function rcinput(input) {
219 var re = /^\/([a-z]+) (.*)/
220 var match = re.exec(input);
221 if (match && match[1] == 'me') {
222 message = "* " + rcnick() + " " + match[2];
223 } else if (match && match[1] == 'nick') {
224 message = "*** " + rcnick() + " is now known as " + match[2];
227 message = "<" + rcnick() + "> " + input;
230 var m = {'Text': message};
231 rcaddmessagetohistory(m);
235 function rckeydown(event) {
236 if (event.keyCode == 13) {
237 rcinput(document.input.say.value);
238 document.input.say.value = "";
246 <body onload=
"rcconnect()">
248 <div id=
"history"></div>
251 <form name=
"input" onsubmit=
"return false" autocomplete=
"off">
252 <input id=
"say" onkeydown=
"return rckeydown(event)" autocomplete=
"off" autofocus=
"autofocus"></input>
254 <div id=
"status"> </div>