[reliable-chat] / webclient / rc.html

<!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">
<head>
 <title>Reliable Chat</title>
  <style type="text/css"><!--/*--><![CDATA[/*><!--*/
	html, body, #outer-table, #history { width: 99.9%; height: 100%; margin: 0; padding: 0 }
	#status { background-color: #eef }
	#say { width: 100% }
	#history { vertical-align: bottom }
	img { width: 1px; height: 1px; }
	iframe { display: none }
	#status span { margin-right: 2em }
	#status span.sad { background-color: #fee }
	#status span.happy { background-color: #efe }
  /*]]>*/--></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);
							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() {
		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);
		}
		if (rcnick() == 'anonymous') {
			rcaddmessagetohistory("-!- Set your nick with /nick");
		}
	}

	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;
			}

			// 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");
			}
		}
	}
  //--><!]]></script>

</head>

<body onload="rcconnect()">
	<table id="outer-table">
		<tr><td id="history"></td></tr>
		<tr><td id="status">&nbsp;</td></tr>
		<tr><td><form name="input" onsubmit="return false" autocomplete="off">
			<input id="say" onkeydown="return rckeydown(event)" autocomplete="off"></input>
			</form></td></tr>
	</table>
</body>
</html>
Commit	Line	Data
827f21bb SW	1	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
	2	"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
	3
	4	<html xmlns="http://www.w3.org/1999/xhtml">
	5	<head>
	6	<title>Reliable Chat</title>
0248a518 SW	7	<style type="text/css"><!--/--><![CDATA[/><!--*/
	8	html, body, #outer-table, #history { width: 99.9%; height: 100%; margin: 0; padding: 0 }
	9	#status { background-color: #eef }
	10	#say { width: 100% }
	11	#history { vertical-align: bottom }
	12	img { width: 1px; height: 1px; }
	13	iframe { display: none }
	14	#status span { margin-right: 2em }
	15	#status span.sad { background-color: #fee }
	16	#status span.happy { background-color: #efe }
	17	/]]>/--></style>
	18	<script type="text/javascript"><!--//--><![CDATA[//><!--
	19	var servers = ['chkno.net', 'rc2.chkno.net', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];
	20
	21	var session = Math.random();
79ced6f1	22	var since = {};
0248a518 SW	23	var seen = {};
	24
	25	function rcnick() {
	26	var nick = localStorage.getItem("nick");
	27	if (nick) {
	28	return nick;
	29	}
	30	return 'anonymous';
	31	}
	32
	33	function rcsetnick(new_nick) {
	34	localStorage.setItem("nick", new_nick);
	35	}
	36
	37	function rcserverbase(server) {
	38	// Add the default port if server doesn't contain a port number already
	39	if (server.indexOf(":") == -1) {
	40	return "http://" + server + ":21059";
	41	} else {
	42	return "http://" + server;
	43	}
	44	}
	45
	46	function rcchangeserverstatus(server, new_status) {
	47	var statusbar = document.getElementById("status");
	48	var spans = statusbar.getElementsByTagName("span");
	49	for (var i in spans) {
	50	if (spans[i].firstChild && 'data' in spans[i].firstChild && spans[i].firstChild.data == server) {
	51	spans[i].setAttribute("class", new_status);
	52	}
	53	}
	54	}
	55
	56	function rcaddmessagetohistory(message) {
	57	var d = document.createElement("div");
	58	d.appendChild(document.createTextNode(message));
	59	var h = document.getElementById("history");
	60	h.appendChild(d);
	61	window.scrollTo(0, document.body.scrollHeight);
	62	return d;
	63	}
	64
	65	function make_seen_key(id, text) {
	66	return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
	67	}
	68
79ced6f1 SW	69	function rcreceivemessages(server, messages) {
	70	for (var i in messages) {
	71	var seen_key = make_seen_key(messages[i]['ID'], messages[i]['Text']);
	72	if (!(seen_key in seen)) {
	73	seen[seen_key] = true;
	74	rcaddmessagetohistory(messages[i]['Text']);
	75	for (var i in servers) {
	76	rcchangeserverstatus(servers[i], "sad");
	77	}
0248a518	78	}
79ced6f1	79	rcchangeserverstatus(server, "happy");
0248a518	80	}
0248a518 SW	81	}
0248a518 SW	82
79ced6f1 SW	83	function rcfetch(server) {
	84	var delay = 10000; // TODO: Exponential backoff
	85	var xhr = new XMLHttpRequest();
	86	xhr.onreadystatechange = function() {
	87	if (this.readyState == this.DONE) {
	88	if (this.status == 200) {
	89	var rtxt = this.responseText;
	90	if (rtxt != null) {
	91	var messages = JSON.parse(rtxt);
	92	if (messages != null) {
	93	rcreceivemessages(server, messages);
	94	window.parent.postMessage(rtxt, "*");
	95	delay = 40;
	96	if (messages.length >= 1 && "Time" in messages[messages.length-1]) {
	97	since[server] = messages[messages.length-1]["Time"];
	98	}
	99	}
0248a518 SW	100	}
0248a518 SW	101	}
79ced6f1	102	window.setTimeout(rcfetch, delay, server);
0248a518 SW	103	}
0248a518 SW	104	}
79ced6f1 SW	105	var uri = rcserverbase(server) + "/fetch";
	106	if (server in since) {
	107	uri += '?since="' + since[server] + '"';
	108	}
	109	xhr.open("GET", uri);
	110	xhr.send();
0248a518 SW	111	}
	112
	113	function rcconnect() {
0248a518	114	for (var i in servers) {
79ced6f1	115	rcfetch(servers[i]);
0248a518 SW	116	// Status bar entry
	117	var status_indicator = document.createElement("span");
	118	status_indicator.appendChild(document.createTextNode(servers[i]));
	119	status_indicator.setAttribute("class", "sad");
	120	document.getElementById("status").appendChild(status_indicator);
	121	}
	122	if (rcnick() == 'anonymous') {
	123	rcaddmessagetohistory("-!- Set your nick with /nick");
	124	}
	125	}
	126
	127	function rcsend(d, message) {
	128	var id = new Date().getTime() + "-" + session + "-" + Math.random();
	129	seen[make_seen_key(id, message)] = true;
	130	var path = "/speak" +
	131	"?id=" + encodeURIComponent(id) +
	132	"&text=" + encodeURIComponent(message);
	133	for (var i in servers) {
	134	var uri = rcserverbase(servers[i]) + path;
	135	var img = document.createElement("img");
	136	img.setAttribute("src", uri);
	137	d.appendChild(img);
	138	}
	139	}
	140
	141	function rckeydown(event) {
	142	if (event.keyCode == 13) {
	143	var input = document.input.say.value;
	144	document.input.say.value = "";
	145
	146	// Check nick change
	147	var message;
	148	var re = /^\/nick (.*)/;
	149	var match = re.exec(input);
	150	if (match) {
	151	message = "*** " + rcnick() + " is now known as " + match[1];
	152	rcsetnick(match[1]);
	153	} else {
	154	message = "<" + rcnick() + "> " + input;
	155	}
	156
c3983543 SW	157	// Say the message
	158	var d = rcaddmessagetohistory(message);
	159	rcsend(d, message);
	160
0248a518 SW	161	// Remind people to set their nick
	162	if (rcnick() == 'anonymous') {
	163	rcaddmessagetohistory("-!- Set your nick with /nick");
	164	}
0248a518 SW	165	}
	166	}
	167	//--><!]]></script>
	168
827f21bb SW	169	</head>
827f21bb SW	170
f0e385c7	171	<body onload="rcconnect()">
827f21bb SW	172	<table id="outer-table">
	173	<tr><td id="history"></td></tr>
	174	<tr><td id="status"> </td></tr>
d3e2abf9 SW	175	<tr><td><form name="input" onsubmit="return false" autocomplete="off">
	176	<input id="say" onkeydown="return rckeydown(event)" autocomplete="off"></input>
	177	</form></td></tr>
827f21bb SW	178	</table>
	179	</body>
	180	</html>