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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[//><!-- | |
b669fb70 | 150 | var servers = ['chkno.net', 'rc2.chkno.net', 'reliablechat-chk.rhcloud.com:80', 'intense-basin-3395.herokuapp.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 | } | |
16f7340b SW |
306 | if (message_i + 1 < history.length) { |
307 | rcaddmessagetoUI(message, history[message_i + 1].UI); | |
308 | } else { | |
309 | rcaddmessagetoUI(message, null); | |
310 | } | |
311 | } | |
7f54ca0a | 312 | |
16f7340b | 313 | function rcaddmessagetoUI(message, before) { |
95ba71ee | 314 | if (!message.UI) { |
bf8f6a39 | 315 | rcmakemessageUI(message); |
95ba71ee | 316 | } |
0248a518 | 317 | var h = document.getElementById("history"); |
16f7340b SW |
318 | if (before) { |
319 | h.insertBefore(message.UI, before); | |
7f54ca0a SW |
320 | } else { |
321 | h.appendChild(message.UI); | |
322 | } | |
0248a518 | 323 | window.scrollTo(0, document.body.scrollHeight); |
0248a518 SW |
324 | } |
325 | ||
326 | function make_seen_key(id, text) { | |
327 | return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@"); | |
328 | } | |
329 | ||
40380bd3 SW |
330 | function rcupdatemessagetime(message) { |
331 | // Set message.Time to be the median of message.ServerTimes | |
332 | var times = []; | |
333 | for (var i in message.ServerTimes) { | |
334 | times.push(message.ServerTimes[i]); | |
335 | } | |
336 | times.sort(); | |
40380bd3 | 337 | if (times.length % 2) { |
ac4bf273 | 338 | message.Time = times[(times.length-1)/2]; |
40380bd3 | 339 | } else { |
ac4bf273 | 340 | var middle = times.length/2; |
40380bd3 SW |
341 | var difference = times[middle].getTime() - times[middle-1].getTime(); |
342 | message.Time = new Date(times[middle-1].getTime() + difference/2); | |
343 | } | |
95ba71ee SW |
344 | |
345 | // This may have broken history's in-sorted-order invariant | |
346 | var hi = history.indexOf(message); | |
347 | if ((history[hi-1] && history[hi-1].Time > message.Time) || | |
348 | (history[hi+1] && history[hi+1].Time < message.Time)) { | |
349 | history.splice(hi,1); | |
350 | rcaddmessagetohistory(message); | |
351 | } | |
5be4c8ec SW |
352 | |
353 | // Update the UI | |
354 | var spans = message.UI.getElementsByTagName("span"); | |
355 | for (var i in spans) { | |
c0aac85a SW |
356 | if (spans[i].getAttribute) { |
357 | var type = spans[i].getAttribute("class"); | |
358 | if (type == "servercount") { | |
359 | spans[i].firstChild.data = Object.keys(message.ServerTimes).length; | |
360 | } else if (type == "timestamp") { | |
361 | spans[i].firstChild.data = rcformattime(message.Time); | |
362 | } | |
5be4c8ec SW |
363 | } |
364 | } | |
40380bd3 SW |
365 | } |
366 | ||
79ced6f1 SW |
367 | function rcreceivemessages(server, messages) { |
368 | for (var i in messages) { | |
ad35b1be | 369 | var m = messages[i]; |
bd1ed9dd | 370 | m.Time = new Date(m.Time); |
ad35b1be | 371 | var seen_key = make_seen_key(m.ID, m.Text); |
705e26cf SW |
372 | if (seen_key in seen) { |
373 | seen[seen_key].ServerTimes[server] = m.Time; | |
40380bd3 | 374 | rcupdatemessagetime(seen[seen_key]); |
244a78af | 375 | rcaddservertimestamptohover(seen[seen_key], server); |
705e26cf | 376 | } else { |
16640c5d SW |
377 | m.ServerTimes = {}; |
378 | m.ServerTimes[server] = m.Time; | |
869430fa | 379 | seen[seen_key] = m; |
ad35b1be | 380 | rcaddmessagetohistory(m); |
79ced6f1 SW |
381 | for (var i in servers) { |
382 | rcchangeserverstatus(servers[i], "sad"); | |
383 | } | |
0248a518 | 384 | } |
79ced6f1 | 385 | rcchangeserverstatus(server, "happy"); |
0248a518 | 386 | } |
0248a518 SW |
387 | } |
388 | ||
79ced6f1 SW |
389 | function rcfetch(server) { |
390 | var delay = 10000; // TODO: Exponential backoff | |
391 | var xhr = new XMLHttpRequest(); | |
392 | xhr.onreadystatechange = function() { | |
393 | if (this.readyState == this.DONE) { | |
394 | if (this.status == 200) { | |
395 | var rtxt = this.responseText; | |
396 | if (rtxt != null) { | |
397 | var messages = JSON.parse(rtxt); | |
398 | if (messages != null) { | |
79ced6f1 SW |
399 | delay = 40; |
400 | if (messages.length >= 1 && "Time" in messages[messages.length-1]) { | |
ad35b1be | 401 | since[server] = messages[messages.length-1].Time; |
79ced6f1 | 402 | } |
92ca5f8a | 403 | rcreceivemessages(server, messages); |
79ced6f1 | 404 | } |
0248a518 SW |
405 | } |
406 | } | |
79ced6f1 | 407 | window.setTimeout(rcfetch, delay, server); |
0248a518 SW |
408 | } |
409 | } | |
79ced6f1 SW |
410 | var uri = rcserverbase(server) + "/fetch"; |
411 | if (server in since) { | |
412 | uri += '?since="' + since[server] + '"'; | |
413 | } | |
414 | xhr.open("GET", uri); | |
415 | xhr.send(); | |
0248a518 SW |
416 | } |
417 | ||
418 | function rcconnect() { | |
19724ebd | 419 | makeExpandingArea(document.getElementById("expando")); |
0248a518 | 420 | for (var i in servers) { |
79ced6f1 | 421 | rcfetch(servers[i]); |
0248a518 SW |
422 | // Status bar entry |
423 | var status_indicator = document.createElement("span"); | |
424 | status_indicator.appendChild(document.createTextNode(servers[i])); | |
425 | status_indicator.setAttribute("class", "sad"); | |
426 | document.getElementById("status").appendChild(status_indicator); | |
427 | } | |
0248a518 SW |
428 | } |
429 | ||
430 | function rcsend(d, message) { | |
7f54ca0a SW |
431 | message.ID = new Date().getTime() + "-" + session + "-" + Math.random(); |
432 | seen[make_seen_key(message.ID, message.Text)] = message; | |
0248a518 | 433 | var path = "/speak" + |
7f54ca0a SW |
434 | "?id=" + encodeURIComponent(message.ID) + |
435 | "&text=" + encodeURIComponent(message.Text); | |
0248a518 SW |
436 | for (var i in servers) { |
437 | var uri = rcserverbase(servers[i]) + path; | |
438 | var img = document.createElement("img"); | |
439 | img.setAttribute("src", uri); | |
440 | d.appendChild(img); | |
441 | } | |
442 | } | |
443 | ||
5a6c082a SW |
444 | function rcinput(input) { |
445 | var message; | |
219b6a2b | 446 | var re = /^\/(\S+)(\s(.*))?/; |
5a6c082a | 447 | var match = re.exec(input); |
16f7340b | 448 | if (match) { |
112df9d1 SW |
449 | var command = match[1]; |
450 | var rest = match[3]; | |
451 | if (command == 'me') { | |
452 | message = "* " + rcnick() + " " + rest; | |
453 | } else if (command == 'nick') { | |
219b6a2b SW |
454 | if (rcnick() == rest) { |
455 | rcaddmessagetoUI({'Text': '-!- Your nick is already ' + rcnick(), 'ServerTimes': {}}); | |
456 | return; | |
457 | } | |
112df9d1 SW |
458 | message = "*** " + rcnick() + " is now known as " + rest; |
459 | rcsetnick(rest); | |
16f7340b | 460 | } else { |
112df9d1 | 461 | rcaddmessagetoUI({'Text': '-!- No such command: ' + command, 'ServerTimes': {}}); |
16f7340b SW |
462 | return; |
463 | } | |
5a6c082a SW |
464 | } else { |
465 | message = "<" + rcnick() + "> " + input; | |
466 | } | |
467 | ||
7f54ca0a | 468 | var m = {'Text': message, 'ServerTimes': {}}; |
869430fa SW |
469 | rcaddmessagetohistory(m); |
470 | rcsend(m.UI, m); | |
5a6c082a SW |
471 | } |
472 | ||
0248a518 SW |
473 | function rckeydown(event) { |
474 | if (event.keyCode == 13) { | |
5a6c082a | 475 | rcinput(document.input.say.value); |
0248a518 | 476 | document.input.say.value = ""; |
19724ebd SW |
477 | return false; |
478 | } | |
479 | } | |
480 | ||
481 | // From http://www.alistapart.com/articles/expanding-text-areas-made-elegant/ | |
482 | function makeExpandingArea(container) { | |
483 | var area = container.querySelector('textarea'); | |
484 | var span1 = container.querySelector('span'); | |
485 | var span2 = document.getElementById('historypad'); | |
486 | if (area.addEventListener) { | |
487 | area.addEventListener('input', function() { | |
488 | span1.textContent = area.value; | |
489 | span2.textContent = area.value; | |
490 | }, false); | |
491 | span1.textContent = area.value; | |
492 | span2.textContent = area.value; | |
493 | } else if (area.attachEvent) { | |
494 | // IE8 compatibility | |
495 | area.attachEvent('onpropertychange', function() { | |
496 | span1.innerText = area.value; | |
497 | span2.innerText = area.value; | |
498 | }); | |
499 | span1.innerText = area.value; | |
500 | span2.innerText = area.value; | |
0248a518 SW |
501 | } |
502 | } | |
503 | //--><!]]></script> | |
504 | ||
827f21bb SW |
505 | </head> |
506 | ||
f0e385c7 | 507 | <body onload="rcconnect()"> |
70f46223 | 508 | <div id="container"> |
5afebfc6 | 509 | <div class="banner">(You are using <a href="https://github.com/chkno/reliable-chat">Reliable Chat</a>)</div> |
70f46223 | 510 | <div id="history"></div> |
19724ebd SW |
511 | <div class="expandingArea" style="visibility: hidden"> |
512 | <pre><span id="historypad"></span><br></pre> | |
513 | </div> | |
70f46223 JH |
514 | <div id="client"> |
515 | <div id="input"> | |
516 | <form name="input" onsubmit="return false" autocomplete="off"> | |
19724ebd SW |
517 | <div id="expando" class="expandingArea"> |
518 | <pre><span></span><br></pre> | |
519 | <textarea id="say" onkeydown="return rckeydown(event)" autofocus="autofocus"></textarea> | |
520 | </div> | |
70f46223 | 521 | </form></div> |
19724ebd | 522 | <div id="status"></div> |
70f46223 JH |
523 | </div> |
524 | </div> | |
827f21bb SW |
525 | </body> |
526 | </html> |