<!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[/*><!--*/
var servers = ['chkno.net', 'rc2.chkno.net', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];
var session = Math.random();
+ var since = {};
var seen = {};
function rcnick() {
return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
}
- function receiveMessage(server, time, id, text) {
- var seen_key = make_seen_key(id, text);
- if (!(seen_key in seen)) {
- seen[seen_key] = true;
- rcaddmessagetohistory(text);
- for (var i in servers) {
- rcchangeserverstatus(servers[i], "sad");
+ 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");
}
- rcchangeserverstatus(server, "happy");
}
- function receiveMessageEvent(event)
- {
- for (var i in servers) {
- if (event.origin === rcserverbase(servers[i])) {
- messages = JSON.parse(event.data);
- for (var j in messages) {
- if ('Time' in messages[j] &&
- 'ID' in messages[j] &&
- 'Text' in messages[j]) {
- receiveMessage(servers[i], messages[j]['Time'], messages[j]['ID'], messages[j]['Text']);
+ 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);
+ window.parent.postMessage(rtxt, "*");
+ 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() {
- window.addEventListener("message", receiveMessageEvent, false);
for (var i in servers) {
- // Create a hidden iframe for same-origin workaround
- var iframe = document.createElement("iframe");
- iframe.setAttribute("src", rcserverbase(servers[i]) + "/frame");
- document.body.insertBefore(iframe, document.body.firstChild);
+ rcfetch(servers[i]);
// Status bar entry
var status_indicator = document.createElement("span");
status_indicator.appendChild(document.createTextNode(servers[i]));
message = "<" + rcnick() + "> " + input;
}
+ // Say the message
+ var d = rcaddmessagetohistory(message);
+ rcsend(d, message);
+
// Remind people to set their nick
if (rcnick() == 'anonymous') {
rcaddmessagetohistory("-!- Set your nick with /nick");
}
-
- // Say the message
- var d = rcaddmessagetohistory(message);
- rcsend(d, message);
}
}
//--><!]]></script>
projects / reliable-chat / blobdiff