A detachable multi-protocol chat client is starting to come together.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3232 ed5197a5-7fde-0310-b194-c3ffbd925b24

packages/cory/irc/irc.js

@@ -0,0 +1,140 @@
+"use strict";
+
+//! {
+//! 	"permissions": [
+//! 		"network"
+//! 	],
+//! 	"chat": {
+//! 		"version": 1,
+//! 		"settings": [
+//! 			{"name": "user", "type": "text"},
+//! 			{"name": "realName", "type": "text"},
+//! 			{"name": "password", "type": "password"},
+//! 			{"name": "nick", "type": "text"},
+//! 			{"name": "server", "type": "text"},
+//! 			{"name": "port", "type": "text"},
+//! 			{"name": "autoJoinChannels", "type": "text"}
+//! 		]
+//! 	},
+//! 	"require": [
+//! 		"libchat"
+//! 	]
+//! }
+
+let ChatService = require("libchat").ChatService;
+
+class IrcService {
+	constructor(options) {
+		let self = this;
+		self._service = new ChatService(options.callback);
+		self._name = options.name;
+		self._nick = options.nick;
+
+		network.newConnection().then(function(socket) {
+			self._socket = socket;
+			return self._connect(options);
+		});
+	}
+
+	_send(line) {
+		return this._socket.write(line + "\r\n");
+	}
+
+	_receivedLine(originalLine) {
+		try {
+			let line = originalLine;
+			let prefix;
+			if (line.charAt(0) == ":") {
+				let space = line.indexOf(" ");
+				prefix = line.substring(1, space);
+				line = line.substring(space + 1);
+			}
+			let lineNoPrefix = line;
+			let remainder;
+			let colon = line.indexOf(" :");
+			if (colon != -1) {
+				remainder = line.substring(colon + 2);
+				line = line.substring(0, colon);
+			}
+			let parts = line.split(" ");
+			if (remainder) {
+				parts.push(remainder);
+			}
+
+			let conversation = "";
+			if (parts[0] == "PRIVMSG" || parts[0] == "NOTICE") {
+				// Is it a channel type?
+				if ("&#!+.".indexOf(parts[1].charAt(0)) != -1) {
+					conversation = parts[1];
+				} else {
+					conversation = prefix.split('!')[0];
+				}
+				this._service.notifyMessageReceived(conversation, {
+					from: prefix.split('!')[0],
+					message: parts[parts.length - 1],
+					type: parts[0],
+				});
+			} else if (parts[0] == "PING") {
+				parts[0] = "PONG";
+				this._send(parts.join(" "));
+			} else if (parts[0] == "JOIN") {
+				let person = prefix.split('!')[0];
+				let conversation = parts[1];
+				this._service.notifyPresenceChanged(conversation, person, "present");
+			} else if (parts[0] == "JOIN") {
+				let person = prefix.split('!')[0];
+				let conversation = parts[1];
+				this._service.notifyPresenceChanged(conversation, person, "unavailable");
+			} else {
+				this._service.notifyMessageReceived("", {from: prefix, message: lineNoPrefix});
+			}
+		} catch (error) {
+			this._service.reportError(error);
+		}
+	}
+
+	_connect(options) {
+		let self = this;
+
+		let readBuffer = "";
+		self._socket.read(function(data) {
+			if (data) {
+				readBuffer += data;
+				let end = readBuffer.indexOf("\n");
+				while (end != -1) {
+					let line = readBuffer.substring(0, end);
+					if (line.charAt(line.length - 1) == "\r") {
+						line = line.substring(0, line.length - 1);
+					}
+					readBuffer = readBuffer.substring(end + 1);
+					self._receivedLine(line);
+					end = readBuffer.indexOf("\n");
+				}
+			} else {
+				self._service.notifyStateChanged("disconnected");
+			}
+		});
+		return self._socket.connect(options.server, options.port).then(function() {
+			self._service.notifyStateChanged("connected");
+			self._send("USER " + options.user + " 0 * :" + options.realName);
+			self._send("NICK " + options.nick);
+		}).catch(self._service.reportError);
+	}
+
+	sendMessage(target, text) {
+		if (!target) {
+			this._socket.write(text + "\r\n");
+		} else {
+			this._socket.write("PRIVMSG " + target + " :" + text + "\r\n");
+		}
+		this._service.notifyMessageReceived(target || "", {from: self._nick, message: text, timestamp: new Date().toString()});
+	}
+
+	disconnect() {
+		this._send("QUIT");
+		this._socket.close();
+		this._service.notifyStateChanged("disconnected");
+	}
+};
+
+ChatService.handleMessages(IrcService);