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827f21bb SW |
1 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" |
2 | "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> | |
827f21bb | 3 | <html xmlns="http://www.w3.org/1999/xhtml"> |
520c21fd SW |
4 | <!-- |
5 | reliable-chat - multipath chat | |
6 | Copyright (C) 2012 Scott Worley <sworley@chkno.net> | |
7 | Copyright (C) 2012 Jason Hibbs <skitch@gmail.com> | |
8 | ||
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. | |
13 | ||
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. | |
18 | ||
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/>. | |
21 | --> | |
827f21bb SW |
22 | <head> |
23 | <title>Reliable Chat</title> | |
0248a518 | 24 | <style type="text/css"><!--/*--><![CDATA[/*><!--*/ |
70f46223 | 25 | html, body { |
19724ebd | 26 | width: 100%; |
70f46223 JH |
27 | height: 100%; |
28 | margin: 0; | |
29 | padding: 0; | |
b22a2ced JH |
30 | background-color: #293134; |
31 | color: silver; | |
70f46223 JH |
32 | font-family: monospace; |
33 | } | |
e04a2cfd | 34 | a { |
63b1551b | 35 | color: #ddd; |
e04a2cfd | 36 | } |
70f46223 JH |
37 | #container { |
38 | height: 100%; | |
39 | } | |
40 | #status { | |
41 | width: 100%; | |
638866e9 | 42 | text-align: right; |
b22a2ced | 43 | background-color: #293134; |
70f46223 JH |
44 | padding: 5px 5px 5px 0px; |
45 | } | |
46 | #client { | |
19724ebd | 47 | width: 100%; |
70f46223 JH |
48 | position: fixed; |
49 | bottom: 0; | |
50 | } | |
51 | #input { | |
52 | width: 100%; | |
b22a2ced | 53 | background-color: #293134; |
70f46223 | 54 | } |
0248a518 | 55 | #say { width: 100% } |
70f46223 | 56 | #history { |
19724ebd SW |
57 | padding: 0px 5px 30px 5px; |
58 | vertical-align: bottom; | |
70f46223 | 59 | } |
5afebfc6 SW |
60 | .banner { |
61 | font-size: 85%; | |
62 | text-align: right; | |
63 | } | |
c0aac85a | 64 | .servercount { |
33fdb071 | 65 | margin-right: -0.5em; |
c0aac85a SW |
66 | font-size: 70%; |
67 | } | |
244a78af SW |
68 | .timestamp:hover, .timestamp:hover .servertimestamps { |
69 | background-color: #556; | |
70 | } | |
71 | .timestamp:hover .servertimestamps { | |
72 | display: block; | |
73 | } | |
74 | .servertimestamps { | |
75 | display: none; | |
76 | position: absolute; | |
77 | left: 3em; | |
78 | z-index: 1; | |
79 | border: 1px solid black; | |
80 | border-radius: 5px; | |
81 | padding-left: 5px; | |
82 | padding-right: 5px; | |
83 | } | |
0248a518 SW |
84 | img { width: 1px; height: 1px; } |
85 | iframe { display: none } | |
70f46223 | 86 | #status span { margin-right: 10px; } |
f09c4ede JH |
87 | #status span.sad { |
88 | background-color: #f00; | |
89 | color: #fff; | |
90 | border: 1px solid black; | |
91 | border-radius: 5px; | |
92 | padding-left: 5px; | |
93 | padding-right: 5px; | |
94 | } | |
95 | #status span.happy { | |
96 | background-color: #0f0; | |
97 | color: #000; | |
98 | border: 1px solid black; | |
99 | border-radius: 5px; | |
100 | padding-left: 5px; | |
101 | padding-right: 5px; | |
102 | } | |
19724ebd SW |
103 | |
104 | /* BEGIN expando input box trick kindly provided by http://www.alistapart.com/articles/expanding-text-areas-made-elegant/ */ | |
105 | .expandingArea { | |
106 | position: relative; | |
107 | border: 1px solid #888; | |
63b1551b | 108 | background: silver; |
19724ebd SW |
109 | } |
110 | .expandingArea > textarea, | |
111 | .expandingArea > pre { | |
112 | margin: 0; | |
113 | outline: 0; | |
114 | border: 0; | |
115 | padding: 5px; | |
116 | background: transparent; | |
117 | font: 400 13px/16px helvetica, arial, sans-serif; | |
118 | /* Make the text soft-wrap */ | |
119 | white-space: pre-wrap; | |
120 | word-wrap: break-word; | |
121 | } | |
122 | .expandingArea > textarea { | |
123 | /* The border-box box model is used to allow | |
124 | * padding whilst still keeping the overall width | |
125 | * at exactly that of the containing element. | |
126 | */ | |
127 | -webkit-box-sizing: border-box; | |
128 | -moz-box-sizing: border-box; | |
129 | -ms-box-sizing: border-box; | |
130 | box-sizing: border-box; | |
131 | width: 100%; | |
132 | /* Hide any scrollbars */ | |
133 | overflow: hidden; | |
134 | position: absolute; | |
135 | top: 0; | |
136 | left: 0; | |
137 | height: 100%; | |
138 | /* Remove WebKit user-resize widget */ | |
139 | resize: none; | |
140 | } | |
141 | .expandingArea > pre { | |
142 | display: block; | |
143 | /* Hide the text; just using it for sizing */ | |
144 | visibility: hidden; | |
145 | } | |
146 | /* END expando input box trick kindly provided by http://www.alistapart.com/articles/expanding-text-areas-made-elegant/ */ | |
147 | ||
0248a518 SW |
148 | /*]]>*/--></style> |
149 | <script type="text/javascript"><!--//--><![CDATA[//><!-- | |
60608b5c | 150 | var servers = ['chkno.net', 'rc2.chkno.net', 'reliablechat-chk.rhcloud.com:80', 'echto.net', 'the-wes.com', 'vibrantlogic.com']; |
0248a518 | 151 | |
da9ce2ab | 152 | var session = Math.random(); // For outgoing message IDs |
869430fa SW |
153 | var since = {}; // server -> time: For fetch?since= |
154 | var seen = {}; // seen_key -> message | |
7f54ca0a | 155 | var history = []; // List of messages sorted by Time |
5419ea4c | 156 | // Messages have these fields: |
40380bd3 | 157 | // Time: The timestamp. Median of ServerTimes |
5419ea4c SW |
158 | // ID: Some unique string for deduping |
159 | // Text: The text of the message | |
705e26cf | 160 | // ServerTimes: server -> timestamp |
5419ea4c | 161 | // UI: The DOM node for this message in the UI |
0248a518 SW |
162 | |
163 | function rcnick() { | |
164 | var nick = localStorage.getItem("nick"); | |
165 | if (nick) { | |
166 | return nick; | |
167 | } | |
168 | return 'anonymous'; | |
169 | } | |
170 | ||
171 | function rcsetnick(new_nick) { | |
172 | localStorage.setItem("nick", new_nick); | |
173 | } | |
174 | ||
175 | function rcserverbase(server) { | |
176 | // Add the default port if server doesn't contain a port number already | |
177 | if (server.indexOf(":") == -1) { | |
178 | return "http://" + server + ":21059"; | |
179 | } else { | |
180 | return "http://" + server; | |
181 | } | |
182 | } | |
183 | ||
184 | function rcchangeserverstatus(server, new_status) { | |
185 | var statusbar = document.getElementById("status"); | |
186 | var spans = statusbar.getElementsByTagName("span"); | |
187 | for (var i in spans) { | |
188 | if (spans[i].firstChild && 'data' in spans[i].firstChild && spans[i].firstChild.data == server) { | |
189 | spans[i].setAttribute("class", new_status); | |
190 | } | |
191 | } | |
192 | } | |
193 | ||
66b29e97 SW |
194 | function rcpad2(x) { |
195 | return (x < 10 ? "0" : "") + x; | |
196 | } | |
197 | function rcpad3(x) { | |
198 | return (x < 10 ? "00" : (x < 100 ? "0" : "")) + x; | |
199 | } | |
200 | ||
bd1ed9dd SW |
201 | function rcformattime(t) { |
202 | var d = t.getDay(); | |
203 | d = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"][d]; | |
204 | var h = t.getHours(); | |
205 | var m = t.getMinutes(); | |
206 | var s = t.getSeconds(); | |
66b29e97 | 207 | return d + " " + rcpad2(h) + ":" + rcpad2(m) + ":" + rcpad2(s); |
bd1ed9dd SW |
208 | } |
209 | ||
244a78af SW |
210 | function rcaddservertimestamptohover(message, server) { |
211 | var divs = message.UI.getElementsByTagName("div"); | |
66b29e97 | 212 | var t = message.ServerTimes[server]; |
244a78af SW |
213 | for (var i in divs) { |
214 | if (divs[i].getAttribute && divs[i].getAttribute("class") == "servertimestamps") { | |
215 | var d = document.createElement("div"); | |
66b29e97 SW |
216 | var text = t.getFullYear() + "-" + |
217 | rcpad2(t.getMonth()) + "-" + | |
218 | rcpad2(t.getDay()) + " " + | |
219 | rcformattime(t) + "." + | |
220 | rcpad3(t.getMilliseconds()) + " " + | |
221 | server; | |
244a78af SW |
222 | d.appendChild(document.createTextNode(text)); |
223 | divs[i].appendChild(d); | |
224 | } | |
225 | } | |
226 | } | |
227 | ||
bf8f6a39 SW |
228 | function rcmakemessageUI(message) { |
229 | message.UI = document.createElement("div"); | |
230 | ||
231 | // Server count | |
232 | var servercount = document.createElement("span"); | |
233 | servercount.setAttribute("class", "servercount"); | |
234 | servercount.appendChild(document.createTextNode(Object.keys(message.ServerTimes).length)); | |
235 | message.UI.appendChild(servercount); | |
33fdb071 | 236 | message.UI.appendChild(document.createTextNode(" ")); |
bf8f6a39 SW |
237 | |
238 | // Timestamp | |
239 | var timestamp_text = message.Time ? rcformattime(message.Time) : ""; | |
240 | var timestamp = document.createElement("span"); | |
241 | timestamp.setAttribute("class", "timestamp"); | |
242 | timestamp.appendChild(document.createTextNode(timestamp_text)); | |
243 | message.UI.appendChild(timestamp); | |
33fdb071 | 244 | message.UI.appendChild(document.createTextNode(" ")); |
bf8f6a39 | 245 | |
244a78af SW |
246 | // Timestamp hover |
247 | var timestamp_hover = document.createElement("div"); | |
248 | timestamp_hover.setAttribute("class", "servertimestamps"); | |
249 | timestamp.appendChild(timestamp_hover); | |
250 | for (var server in message.ServerTimes) { | |
251 | rcaddservertimestamptohover(message, server); | |
252 | } | |
253 | ||
3a89c414 SW |
254 | // Classify different message types |
255 | var text_span = document.createElement("span"); | |
256 | var type; | |
257 | if (/^\*\*\* /.test(message.Text)) { | |
258 | type = "status"; | |
259 | } else if (/^\* /.test(message.Text)) { | |
260 | type = "me"; | |
261 | } else { | |
262 | type = "text"; | |
263 | } | |
264 | if (Object.keys(message.ServerTimes).length == 0) { | |
265 | type += " self"; | |
266 | } | |
267 | text_span.setAttribute("class", type); | |
e04a2cfd SW |
268 | |
269 | // URL detection | |
270 | var text = message.Text; | |
271 | var URL_re = /\bhttps?:\/\/\S+/; | |
272 | while (URL_re.test(text)) { | |
273 | var match = URL_re.exec(text); | |
274 | var leading_text = text.substr(0, match.index); | |
275 | if (leading_text) { | |
276 | text_span.appendChild(document.createTextNode(leading_text)); | |
277 | } | |
278 | var anchor = document.createElement("a"); | |
606c01e1 | 279 | anchor.setAttribute("rel", "nofollow"); |
e04a2cfd SW |
280 | anchor.setAttribute("href", encodeURI(match[0])); |
281 | anchor.appendChild(document.createTextNode(match[0])); | |
282 | text_span.appendChild(anchor); | |
283 | text = text.substr(match.index + match[0].length); | |
284 | } | |
285 | if (text) { | |
286 | text_span.appendChild(document.createTextNode(text)); | |
287 | } | |
288 | ||
3a89c414 | 289 | message.UI.appendChild(text_span); |
bf8f6a39 SW |
290 | } |
291 | ||
0248a518 | 292 | function rcaddmessagetohistory(message) { |
7f54ca0a SW |
293 | var message_i; |
294 | if (message.Time) { | |
295 | for (var i = history.length - 1; ; i--) { | |
296 | if (i < 0 || (history[i].Time && message.Time >= history[i].Time)) { | |
297 | message_i = i+1; | |
298 | history.splice(message_i, 0, message); | |
299 | break; | |
300 | } | |
301 | } | |
302 | } else { | |
303 | history.push(message); | |
304 | message_i = history.length-1; | |
305 | } | |
306 | ||
95ba71ee | 307 | if (!message.UI) { |
bf8f6a39 | 308 | rcmakemessageUI(message); |
95ba71ee | 309 | } |
0248a518 | 310 | var h = document.getElementById("history"); |
7f54ca0a SW |
311 | if (message_i + 1 < history.length) { |
312 | h.insertBefore(message.UI, history[message_i + 1].UI); | |
313 | } else { | |
314 | h.appendChild(message.UI); | |
315 | } | |
0248a518 | 316 | window.scrollTo(0, document.body.scrollHeight); |
0248a518 SW |
317 | } |
318 | ||
319 | function make_seen_key(id, text) { | |
320 | return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@"); | |
321 | } | |
322 | ||
40380bd3 SW |
323 | function rcupdatemessagetime(message) { |
324 | // Set message.Time to be the median of message.ServerTimes | |
325 | var times = []; | |
326 | for (var i in message.ServerTimes) { | |
327 | times.push(message.ServerTimes[i]); | |
328 | } | |
329 | times.sort(); | |
40380bd3 | 330 | if (times.length % 2) { |
ac4bf273 | 331 | message.Time = times[(times.length-1)/2]; |
40380bd3 | 332 | } else { |
ac4bf273 | 333 | var middle = times.length/2; |
40380bd3 SW |
334 | var difference = times[middle].getTime() - times[middle-1].getTime(); |
335 | message.Time = new Date(times[middle-1].getTime() + difference/2); | |
336 | } | |
95ba71ee SW |
337 | |
338 | // This may have broken history's in-sorted-order invariant | |
339 | var hi = history.indexOf(message); | |
340 | if ((history[hi-1] && history[hi-1].Time > message.Time) || | |
341 | (history[hi+1] && history[hi+1].Time < message.Time)) { | |
342 | history.splice(hi,1); | |
343 | rcaddmessagetohistory(message); | |
344 | } | |
5be4c8ec SW |
345 | |
346 | // Update the UI | |
347 | var spans = message.UI.getElementsByTagName("span"); | |
348 | for (var i in spans) { | |
c0aac85a SW |
349 | if (spans[i].getAttribute) { |
350 | var type = spans[i].getAttribute("class"); | |
351 | if (type == "servercount") { | |
352 | spans[i].firstChild.data = Object.keys(message.ServerTimes).length; | |
353 | } else if (type == "timestamp") { | |
354 | spans[i].firstChild.data = rcformattime(message.Time); | |
355 | } | |
5be4c8ec SW |
356 | } |
357 | } | |
40380bd3 SW |
358 | } |
359 | ||
79ced6f1 SW |
360 | function rcreceivemessages(server, messages) { |
361 | for (var i in messages) { | |
ad35b1be | 362 | var m = messages[i]; |
bd1ed9dd | 363 | m.Time = new Date(m.Time); |
ad35b1be | 364 | var seen_key = make_seen_key(m.ID, m.Text); |
705e26cf SW |
365 | if (seen_key in seen) { |
366 | seen[seen_key].ServerTimes[server] = m.Time; | |
40380bd3 | 367 | rcupdatemessagetime(seen[seen_key]); |
244a78af | 368 | rcaddservertimestamptohover(seen[seen_key], server); |
705e26cf | 369 | } else { |
16640c5d SW |
370 | m.ServerTimes = {}; |
371 | m.ServerTimes[server] = m.Time; | |
869430fa | 372 | seen[seen_key] = m; |
ad35b1be | 373 | rcaddmessagetohistory(m); |
79ced6f1 SW |
374 | for (var i in servers) { |
375 | rcchangeserverstatus(servers[i], "sad"); | |
376 | } | |
0248a518 | 377 | } |
79ced6f1 | 378 | rcchangeserverstatus(server, "happy"); |
0248a518 | 379 | } |
0248a518 SW |
380 | } |
381 | ||
79ced6f1 SW |
382 | function rcfetch(server) { |
383 | var delay = 10000; // TODO: Exponential backoff | |
384 | var xhr = new XMLHttpRequest(); | |
385 | xhr.onreadystatechange = function() { | |
386 | if (this.readyState == this.DONE) { | |
387 | if (this.status == 200) { | |
388 | var rtxt = this.responseText; | |
389 | if (rtxt != null) { | |
390 | var messages = JSON.parse(rtxt); | |
391 | if (messages != null) { | |
79ced6f1 SW |
392 | delay = 40; |
393 | if (messages.length >= 1 && "Time" in messages[messages.length-1]) { | |
ad35b1be | 394 | since[server] = messages[messages.length-1].Time; |
79ced6f1 | 395 | } |
92ca5f8a | 396 | rcreceivemessages(server, messages); |
79ced6f1 | 397 | } |
0248a518 SW |
398 | } |
399 | } | |
79ced6f1 | 400 | window.setTimeout(rcfetch, delay, server); |
0248a518 SW |
401 | } |
402 | } | |
79ced6f1 SW |
403 | var uri = rcserverbase(server) + "/fetch"; |
404 | if (server in since) { | |
405 | uri += '?since="' + since[server] + '"'; | |
406 | } | |
407 | xhr.open("GET", uri); | |
408 | xhr.send(); | |
0248a518 SW |
409 | } |
410 | ||
411 | function rcconnect() { | |
19724ebd | 412 | makeExpandingArea(document.getElementById("expando")); |
0248a518 | 413 | for (var i in servers) { |
79ced6f1 | 414 | rcfetch(servers[i]); |
0248a518 SW |
415 | // Status bar entry |
416 | var status_indicator = document.createElement("span"); | |
417 | status_indicator.appendChild(document.createTextNode(servers[i])); | |
418 | status_indicator.setAttribute("class", "sad"); | |
419 | document.getElementById("status").appendChild(status_indicator); | |
420 | } | |
0248a518 SW |
421 | } |
422 | ||
423 | function rcsend(d, message) { | |
7f54ca0a SW |
424 | message.ID = new Date().getTime() + "-" + session + "-" + Math.random(); |
425 | seen[make_seen_key(message.ID, message.Text)] = message; | |
0248a518 | 426 | var path = "/speak" + |
7f54ca0a SW |
427 | "?id=" + encodeURIComponent(message.ID) + |
428 | "&text=" + encodeURIComponent(message.Text); | |
0248a518 SW |
429 | for (var i in servers) { |
430 | var uri = rcserverbase(servers[i]) + path; | |
431 | var img = document.createElement("img"); | |
432 | img.setAttribute("src", uri); | |
433 | d.appendChild(img); | |
434 | } | |
435 | } | |
436 | ||
5a6c082a SW |
437 | function rcinput(input) { |
438 | var message; | |
439 | var re = /^\/([a-z]+) (.*)/ | |
440 | var match = re.exec(input); | |
441 | if (match && match[1] == 'me') { | |
442 | message = "* " + rcnick() + " " + match[2]; | |
443 | } else if (match && match[1] == 'nick') { | |
444 | message = "*** " + rcnick() + " is now known as " + match[2]; | |
445 | rcsetnick(match[2]); | |
446 | } else { | |
447 | message = "<" + rcnick() + "> " + input; | |
448 | } | |
449 | ||
7f54ca0a | 450 | var m = {'Text': message, 'ServerTimes': {}}; |
869430fa SW |
451 | rcaddmessagetohistory(m); |
452 | rcsend(m.UI, m); | |
5a6c082a SW |
453 | } |
454 | ||
0248a518 SW |
455 | function rckeydown(event) { |
456 | if (event.keyCode == 13) { | |
5a6c082a | 457 | rcinput(document.input.say.value); |
0248a518 | 458 | document.input.say.value = ""; |
19724ebd SW |
459 | return false; |
460 | } | |
461 | } | |
462 | ||
463 | // From http://www.alistapart.com/articles/expanding-text-areas-made-elegant/ | |
464 | function makeExpandingArea(container) { | |
465 | var area = container.querySelector('textarea'); | |
466 | var span1 = container.querySelector('span'); | |
467 | var span2 = document.getElementById('historypad'); | |
468 | if (area.addEventListener) { | |
469 | area.addEventListener('input', function() { | |
470 | span1.textContent = area.value; | |
471 | span2.textContent = area.value; | |
472 | }, false); | |
473 | span1.textContent = area.value; | |
474 | span2.textContent = area.value; | |
475 | } else if (area.attachEvent) { | |
476 | // IE8 compatibility | |
477 | area.attachEvent('onpropertychange', function() { | |
478 | span1.innerText = area.value; | |
479 | span2.innerText = area.value; | |
480 | }); | |
481 | span1.innerText = area.value; | |
482 | span2.innerText = area.value; | |
0248a518 SW |
483 | } |
484 | } | |
485 | //--><!]]></script> | |
486 | ||
827f21bb SW |
487 | </head> |
488 | ||
f0e385c7 | 489 | <body onload="rcconnect()"> |
70f46223 | 490 | <div id="container"> |
5afebfc6 | 491 | <div class="banner">(You are using <a href="https://github.com/chkno/reliable-chat">Reliable Chat</a>)</div> |
70f46223 | 492 | <div id="history"></div> |
19724ebd SW |
493 | <div class="expandingArea" style="visibility: hidden"> |
494 | <pre><span id="historypad"></span><br></pre> | |
495 | </div> | |
70f46223 JH |
496 | <div id="client"> |
497 | <div id="input"> | |
498 | <form name="input" onsubmit="return false" autocomplete="off"> | |
19724ebd SW |
499 | <div id="expando" class="expandingArea"> |
500 | <pre><span></span><br></pre> | |
501 | <textarea id="say" onkeydown="return rckeydown(event)" autofocus="autofocus"></textarea> | |
502 | </div> | |
70f46223 | 503 | </form></div> |
19724ebd | 504 | <div id="status"></div> |
70f46223 JH |
505 | </div> |
506 | </div> | |
827f21bb SW |
507 | </body> |
508 | </html> |