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irc.js
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irc.js
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// TODO: Let do it in RUST
exports.Client = Client;
var net = require('net');
var tls = require('tls');
var util = require('util');
var EventEmitter = require('events').EventEmitter;
var colors = require('./colors');
var parseMessage = require('./parse_message');
exports.colors = colors;
var CyclingPingTimer = require('./cycling_ping_timer.js');
var lineDelimiter = new RegExp('\r\n|\r|\n')
function Client(server, nick, opt) {
var self = this;
self.opt = {
server: server,
nick: nick,
password: null,
userName: 'nodebot',
realName: 'nodeJS IRC client',
port: 6667,
localAddress: null,
debug: false,
showErrors: false,
autoRejoin: false,
autoConnect: true,
channels: [],
retryCount: null,
retryDelay: 2000,
secure: false,
selfSigned: false,
certExpired: false,
floodProtection: false,
floodProtectionDelay: 1000,
sasl: false,
stripColors: false,
channelPrefixes: '&#',
messageSplit: 512,
encoding: false,
webirc: {
pass: '',
ip: '',
host: ''
},
millisecondsOfSilenceBeforePingSent: 15 * 1000,
millisecondsBeforePingTimeout: 8 * 1000
};
// Features supported by the server
// (initial values are RFC 1459 defaults. Zeros signify
// no default or unlimited value)
self.supported = {
channel: {
idlength: [],
length: 200,
limit: [],
modes: { a: '', b: '', c: '', d: '' },
types: self.opt.channelPrefixes
},
kicklength: 0,
maxlist: [],
maxtargets: [],
modes: 3,
nicklength: 9,
topiclength: 0,
usermodes: ''
};
if (typeof arguments[2] == 'object') {
var keys = Object.keys(self.opt);
for (var i = 0; i < keys.length; i++) {
var k = keys[i];
if (arguments[2][k] !== undefined)
self.opt[k] = arguments[2][k];
}
}
if (self.opt.floodProtection) {
self.activateFloodProtection();
}
self.hostMask = '';
// TODO - fail if nick or server missing
// TODO - fail if username has a space in it
if (self.opt.autoConnect === true) {
self.connect();
}
self.addListener('raw', function (message) {
var channels = [],
channel,
nick,
from,
text,
to;
switch (message.command) {
case 'rpl_welcome':
// Set nick to whatever the server decided it really is
// (normally this is because you chose something too long and
// the server has shortened it
self.nick = message.args[0];
// Note our hostmask to use it in splitting long messages.
// We don't send our hostmask when issuing PRIVMSGs or NOTICEs,
// of course, but rather the servers on the other side will
// include it in messages and will truncate what we send if
// the string is too long. Therefore, we need to be considerate
// neighbors and truncate our messages accordingly.
var welcomeStringWords = message.args[1].split(/\s+/);
self.hostMask = welcomeStringWords[welcomeStringWords.length - 1];
self._updateMaxLineLength();
self.emit('registered', message);
self.whois(self.nick, function (args) {
self.nick = args.nick;
self.hostMask = args.user + '@' + args.host;
self._updateMaxLineLength();
});
break;
case 'rpl_myinfo':
self.supported.usermodes = message.args[3];
break;
case 'rpl_isupport':
message.args.forEach(function (arg) {
var match;
match = arg.match(/([A-Z]+)=(.*)/);
if (match) {
var param = match[1];
var value = match[2];
switch (param) {
case 'CHANLIMIT':
value.split(',').forEach(function (val) {
val = val.split(':');
self.supported.channel.limit[val[0]] = parseInt(val[1]);
});
break;
case 'CHANMODES':
value = value.split(',');
var type = ['a', 'b', 'c', 'd'];
for (var i = 0; i < type.length; i++) {
self.supported.channel.modes[type[i]] += value[i];
}
break;
case 'CHANTYPES':
self.supported.channel.types = value;
break;
case 'CHANNELLEN':
self.supported.channel.length = parseInt(value);
break;
case 'IDCHAN':
value.split(',').forEach(function (val) {
val = val.split(':');
self.supported.channel.idlength[val[0]] = val[1];
});
break;
case 'KICKLEN':
self.supported.kicklength = value;
break;
case 'MAXLIST':
value.split(',').forEach(function (val) {
val = val.split(':');
self.supported.maxlist[val[0]] = parseInt(val[1]);
});
break;
case 'NICKLEN':
self.supported.nicklength = parseInt(value);
break;
case 'PREFIX':
match = value.match(/\((.*?)\)(.*)/);
if (match) {
match[1] = match[1].split('');
match[2] = match[2].split('');
while (match[1].length) {
self.modeForPrefix[match[2][0]] = match[1][0];
self.supported.channel.modes.b += match[1][0];
self.prefixForMode[match[1].shift()] = match[2].shift();
}
}
break;
case 'STATUSMSG':
break;
case 'TARGMAX':
value.split(',').forEach(function (val) {
val = val.split(':');
val[1] = (!val[1]) ? 0 : parseInt(val[1]);
self.supported.maxtargets[val[0]] = val[1];
});
break;
case 'TOPICLEN':
self.supported.topiclength = parseInt(value);
break;
}
}
});
break;
case 'rpl_yourhost':
case 'rpl_created':
case 'rpl_luserclient':
case 'rpl_luserop':
case 'rpl_luserchannels':
case 'rpl_luserme':
case 'rpl_localusers':
case 'rpl_globalusers':
case 'rpl_statsconn':
case 'rpl_luserunknown':
case '396':
case '042':
// Random welcome crap, ignoring
break;
case 'err_nicknameinuse':
if (typeof (self.opt.nickMod) == 'undefined')
self.opt.nickMod = 0;
self.opt.nickMod++;
self.send('NICK', self.opt.nick + self.opt.nickMod);
self.nick = self.opt.nick + self.opt.nickMod;
self._updateMaxLineLength();
break;
case 'PING':
self.send('PONG', message.args[0]);
self.emit('ping', message.args[0]);
break;
case 'PONG':
self.emit('pong', message.args[0]);
break;
case 'NOTICE':
from = message.nick;
to = message.args[0];
if (!to) {
to = null;
}
text = message.args[1] || '';
if (text[0] === '\u0001' && text.lastIndexOf('\u0001') > 0) {
self._handleCTCP(from, to, text, 'notice', message);
break;
}
self.emit('notice', from, to, text, message);
if (self.opt.debug && to == self.nick)
util.log('GOT NOTICE from ' + (from ? '"' + from + '"' : 'the server') + ': "' + text + '"');
break;
case 'MODE':
if (self.opt.debug)
util.log('MODE: ' + message.args[0] + ' sets mode: ' + message.args[1]);
channel = self.chanData(message.args[0]);
if (!channel) break;
var modeList = message.args[1].split('');
var adding = true;
var modeArgs = message.args.slice(2);
modeList.forEach(function (mode) {
if (mode == '+') {
adding = true;
return;
}
if (mode == '-') {
adding = false;
return;
}
var eventName = (adding ? '+' : '-') + 'mode';
var supported = self.supported.channel.modes;
var modeArg;
var chanModes = function (mode, param) {
var arr = param && Array.isArray(param);
if (adding) {
if (channel.mode.indexOf(mode) == -1) {
channel.mode += mode;
}
if (param === undefined) {
channel.modeParams[mode] = [];
} else if (arr) {
channel.modeParams[mode] = channel.modeParams[mode] ?
channel.modeParams[mode].concat(param) : param;
} else {
channel.modeParams[mode] = [param];
}
} else {
if (arr) {
channel.modeParams[mode] = channel.modeParams[mode]
.filter(function (v) { return v !== param[0]; });
}
if (!arr || channel.modeParams[mode].length === 0) {
channel.mode = channel.mode.replace(mode, '');
delete channel.modeParams[mode];
}
}
};
if (mode in self.prefixForMode) {
modeArg = modeArgs.shift();
if (channel.users.hasOwnProperty(modeArg)) {
if (adding) {
if (channel.users[modeArg].indexOf(self.prefixForMode[mode]) === -1)
channel.users[modeArg] += self.prefixForMode[mode];
} else channel.users[modeArg] = channel.users[modeArg].replace(self.prefixForMode[mode], '');
}
self.emit(eventName, message.args[0], message.nick, mode, modeArg, message);
} else if (supported.a.indexOf(mode) !== -1) {
modeArg = modeArgs.shift();
chanModes(mode, [modeArg]);
self.emit(eventName, message.args[0], message.nick, mode, modeArg, message);
} else if (supported.b.indexOf(mode) !== -1) {
modeArg = modeArgs.shift();
chanModes(mode, modeArg);
self.emit(eventName, message.args[0], message.nick, mode, modeArg, message);
} else if (supported.c.indexOf(mode) !== -1) {
if (adding) modeArg = modeArgs.shift();
else modeArg = undefined;
chanModes(mode, modeArg);
self.emit(eventName, message.args[0], message.nick, mode, modeArg, message);
} else if (supported.d.indexOf(mode) !== -1) {
chanModes(mode);
self.emit(eventName, message.args[0], message.nick, mode, undefined, message);
}
});
break;
case 'NICK':
if (message.nick == self.nick) {
// the user just changed their own nick
self.nick = message.args[0];
self._updateMaxLineLength();
}
if (self.opt.debug)
util.log('NICK: ' + message.nick + ' changes nick to ' + message.args[0]);
channels = [];
// TODO better way of finding what channels a user is in?
Object.keys(self.chans).forEach(function (channame) {
var channel = self.chans[channame];
channel.users[message.args[0]] = channel.users[message.nick];
delete channel.users[message.nick];
channels.push(channame);
});
// old nick, new nick, channels
self.emit('nick', message.nick, message.args[0], channels, message);
break;
case 'rpl_motdstart':
self.motd = message.args[1] + '\n';
break;
case 'rpl_motd':
self.motd += message.args[1] + '\n';
break;
case 'rpl_endofmotd':
case 'err_nomotd':
self.motd += message.args[1] + '\n';
self.emit('motd', self.motd);
break;
case 'rpl_namreply':
channel = self.chanData(message.args[2]);
var users = message.args[3].trim().split(/ +/);
if (channel) {
users.forEach(function (user) {
var match = user.match(/^(.)(.*)$/);
if (match) {
if (match[1] in self.modeForPrefix) {
channel.users[match[2]] = match[1];
}
else {
channel.users[match[1] + match[2]] = '';
}
}
});
}
break;
case 'rpl_endofnames':
channel = self.chanData(message.args[1]);
if (channel) {
self.emit('names', message.args[1], channel.users);
self.emit('names' + message.args[1], channel.users);
self.send('MODE', message.args[1]);
}
break;
case 'rpl_topic':
channel = self.chanData(message.args[1]);
if (channel) {
channel.topic = message.args[2];
}
break;
case 'rpl_away':
self._addWhoisData(message.args[1], 'away', message.args[2], true);
break;
case 'rpl_whoisuser':
self._addWhoisData(message.args[1], 'user', message.args[2]);
self._addWhoisData(message.args[1], 'host', message.args[3]);
self._addWhoisData(message.args[1], 'realname', message.args[5]);
break;
case 'rpl_whoisidle':
self._addWhoisData(message.args[1], 'idle', message.args[2]);
break;
case 'rpl_whoischannels':
// TODO - clean this up?
self._addWhoisData(message.args[1], 'channels', message.args[2].trim().split(/\s+/));
break;
case 'rpl_whoisserver':
self._addWhoisData(message.args[1], 'server', message.args[2]);
self._addWhoisData(message.args[1], 'serverinfo', message.args[3]);
break;
case 'rpl_whoisoperator':
self._addWhoisData(message.args[1], 'operator', message.args[2]);
break;
case '330': // rpl_whoisaccount?
self._addWhoisData(message.args[1], 'account', message.args[2]);
self._addWhoisData(message.args[1], 'accountinfo', message.args[3]);
break;
case 'rpl_endofwhois':
self.emit('whois', self._clearWhoisData(message.args[1]));
break;
case 'rpl_whoreply':
self._addWhoisData(message.args[5], 'user', message.args[2]);
self._addWhoisData(message.args[5], 'host', message.args[3]);
self._addWhoisData(message.args[5], 'server', message.args[4]);
self._addWhoisData(message.args[5], 'realname', /[0-9]+\s*(.+)/g.exec(message.args[7])[1]);
// emit right away because rpl_endofwho doesn't contain nick
self.emit('whois', self._clearWhoisData(message.args[5]));
break;
case 'rpl_liststart':
self.channellist = [];
self.emit('channellist_start');
break;
case 'rpl_list':
channel = {
name: message.args[1],
users: message.args[2],
topic: message.args[3]
};
self.emit('channellist_item', channel);
self.channellist.push(channel);
break;
case 'rpl_listend':
self.emit('channellist', self.channellist);
break;
case 'rpl_topicwhotime':
channel = self.chanData(message.args[1]);
if (channel) {
channel.topicBy = message.args[2];
// channel, topic, nick
self.emit('topic', message.args[1], channel.topic, channel.topicBy, message);
}
break;
case 'TOPIC':
// channel, topic, nick
self.emit('topic', message.args[0], message.args[1], message.nick, message);
channel = self.chanData(message.args[0]);
if (channel) {
channel.topic = message.args[1];
channel.topicBy = message.nick;
}
break;
case 'rpl_channelmodeis':
channel = self.chanData(message.args[1]);
if (channel) {
channel.mode = message.args[2];
}
break;
case 'rpl_creationtime':
channel = self.chanData(message.args[1]);
if (channel) {
channel.created = message.args[2];
}
break;
case 'JOIN':
// channel, who
if (self.nick == message.nick) {
self.chanData(message.args[0], true);
}
else {
channel = self.chanData(message.args[0]);
if (channel && channel.users) {
channel.users[message.nick] = '';
}
}
self.emit('join', message.args[0], message.nick, message);
self.emit('join' + message.args[0], message.nick, message);
if (message.args[0] != message.args[0].toLowerCase()) {
self.emit('join' + message.args[0].toLowerCase(), message.nick, message);
}
break;
case 'PART':
// channel, who, reason
self.emit('part', message.args[0], message.nick, message.args[1], message);
self.emit('part' + message.args[0], message.nick, message.args[1], message);
if (message.args[0] != message.args[0].toLowerCase()) {
self.emit('part' + message.args[0].toLowerCase(), message.nick, message.args[1], message);
}
if (self.nick == message.nick) {
channel = self.chanData(message.args[0]);
delete self.chans[channel.key];
}
else {
channel = self.chanData(message.args[0]);
if (channel && channel.users) {
delete channel.users[message.nick];
}
}
break;
case 'KICK':
// channel, who, by, reason
self.emit('kick', message.args[0], message.args[1], message.nick, message.args[2], message);
self.emit('kick' + message.args[0], message.args[1], message.nick, message.args[2], message);
if (message.args[0] != message.args[0].toLowerCase()) {
self.emit('kick' + message.args[0].toLowerCase(),
message.args[1], message.nick, message.args[2], message);
}
if (self.nick == message.args[1]) {
channel = self.chanData(message.args[0]);
delete self.chans[channel.key];
}
else {
channel = self.chanData(message.args[0]);
if (channel && channel.users) {
delete channel.users[message.args[1]];
}
}
break;
case 'KILL':
nick = message.args[0];
channels = [];
Object.keys(self.chans).forEach(function (channame) {
var channel = self.chans[channame];
channels.push(channame);
delete channel.users[nick];
});
self.emit('kill', nick, message.args[1], channels, message);
break;
case 'PRIVMSG':
from = message.nick;
to = message.args[0];
text = message.args[1] || '';
if (text[0] === '\u0001' && text.lastIndexOf('\u0001') > 0) {
self._handleCTCP(from, to, text, 'privmsg', message);
break;
}
self.emit('message', from, to, text, message);
if (self.supported.channel.types.indexOf(to.charAt(0)) !== -1) {
self.emit('message#', from, to, text, message);
self.emit('message' + to, from, text, message);
if (to != to.toLowerCase()) {
self.emit('message' + to.toLowerCase(), from, text, message);
}
}
if (to.toUpperCase() === self.nick.toUpperCase()) self.emit('pm', from, text, message);
if (self.opt.debug && to == self.nick)
util.log('GOT MESSAGE from ' + from + ': ' + text);
break;
// case 'INVITE':
// from = message.nick;
// to = message.args[0];
// channel = message.args[1];
// self.emit('invite', channel, from, message);
// break;
case 'QUIT':
if (self.opt.debug)
util.log('QUIT: ' + message.prefix + ' ' + message.args.join(' '));
if (self.nick == message.nick) {
// TODO handle?
break;
}
// handle other people quitting
channels = [];
// TODO better way of finding what channels a user is in?
Object.keys(self.chans).forEach(function (channame) {
var channel = self.chans[channame];
delete channel.users[message.nick];
channels.push(channame);
});
// who, reason, channels
self.emit('quit', message.nick, message.args[0], channels, message);
break;
// for sasl
case 'CAP':
if (message.args[0] === '*' &&
message.args[1] === 'ACK' &&
message.args[2] === 'sasl ') // there's a space after sasl
self.send('AUTHENTICATE', 'PLAIN');
break;
case 'AUTHENTICATE':
if (message.args[0] === '+') self.send('AUTHENTICATE',
new Buffer(
self.opt.nick + '\0' +
self.opt.userName + '\0' +
self.opt.password
).toString('base64'));
break;
case '903':
self.send('CAP', 'END');
break;
case 'err_umodeunknownflag':
if (self.opt.showErrors)
util.log('\u001b[01;31mERROR: ' + util.inspect(message) + '\u001b[0m');
break;
case 'err_erroneusnickname':
if (self.opt.showErrors)
util.log('\u001b[01;31mERROR: ' + util.inspect(message) + '\u001b[0m');
self.emit('error', message);
break;
// Commands relating to OPER
case 'err_nooperhost':
if (self.opt.showErrors) {
self.emit('error', message);
if (self.opt.showErrors)
util.log('\u001b[01;31mERROR: ' + util.inspect(message) + '\u001b[0m');
}
break;
case 'rpl_youreoper':
self.emit('opered');
break;
default:
if (message.commandType == 'error') {
self.emit('error', message);
if (self.opt.showErrors)
util.log('\u001b[01;31mERROR: ' + util.inspect(message) + '\u001b[0m');
}
else {
if (self.opt.debug)
util.log('\u001b[01;31mUnhandled message: ' + util.inspect(message) + '\u001b[0m');
break;
}
}
});
self.addListener('kick', function (channel, who, by, reason) {
if (self.opt.autoRejoin)
self.send.apply(self, ['JOIN'].concat(channel.split(' ')));
});
self.addListener('motd', function (motd) {
self.opt.channels.forEach(function (channel) {
self.send.apply(self, ['JOIN'].concat(channel.split(' ')));
});
});
EventEmitter.call(this);
}
util.inherits(Client, EventEmitter);
Client.prototype.conn = null;
Client.prototype.prefixForMode = {};
Client.prototype.modeForPrefix = {};
Client.prototype.chans = {};
Client.prototype._whoisData = {};
Client.prototype.connectionTimedOut = function (conn) {
var self = this;
if (conn !== self.conn) {
// Only care about a timeout event if it came from the connection
// that is most current.
return;
}
self.end();
};
(function () {
var pingCounter = 1;
Client.prototype.connectionWantsPing = function (conn) {
var self = this;
if (conn !== self.conn) {
// Only care about a wantPing event if it came from the connection
// that is most current.
return;
}
self.send('PING', (pingCounter++).toString());
};
}());
Client.prototype.chanData = function (name, create) {
var key = name.toLowerCase();
if (create) {
this.chans[key] = this.chans[key] || {
key: key,
serverName: name,
users: {},
modeParams: {},
mode: ''
};
}
return this.chans[key];
};
Client.prototype._connectionHandler = function () {
if (this.opt.webirc.ip && this.opt.webirc.pass && this.opt.webirc.host) {
this.send('WEBIRC', this.opt.webirc.pass, this.opt.userName, this.opt.webirc.host, this.opt.webirc.ip);
}
if (this.opt.sasl) {
// see http://ircv3.atheme.org/extensions/sasl-3.1
this.send('CAP REQ', 'sasl');
} else if (this.opt.password) {
this.send('PASS', this.opt.password);
}
if (this.opt.debug)
util.log('Sending irc NICK/USER');
this.send('NICK', this.opt.nick);
this.nick = this.opt.nick;
this._updateMaxLineLength();
this.send('USER', this.opt.userName, 8, '*', this.opt.realName);
this.conn.cyclingPingTimer.start();
this.emit('connect');
};
Client.prototype.connect = function (retryCount, callback) {
if (typeof (retryCount) === 'function') {
callback = retryCount;
retryCount = undefined;
}
retryCount = retryCount || 0;
if (typeof (callback) === 'function') {
this.once('registered', callback);
}
var self = this;
self.chans = {};
// socket opts
var connectionOpts = {
host: self.opt.server,
port: self.opt.port
};
// local address to bind to
if (self.opt.localAddress)
connectionOpts.localAddress = self.opt.localAddress;
// try to connect to the server
if (self.opt.secure) {
connectionOpts.rejectUnauthorized = !self.opt.selfSigned;
if (typeof self.opt.secure == 'object') {
// copy "secure" opts to options passed to connect()
for (var f in self.opt.secure) {
connectionOpts[f] = self.opt.secure[f];
}
}
self.conn = tls.connect(connectionOpts, function () {
// callback called only after successful socket connection
self.conn.connected = true;
if (self.conn.authorized ||
(self.opt.selfSigned &&
(self.conn.authorizationError === 'DEPTH_ZERO_SELF_SIGNED_CERT' ||
self.conn.authorizationError === 'UNABLE_TO_VERIFY_LEAF_SIGNATURE' ||
self.conn.authorizationError === 'SELF_SIGNED_CERT_IN_CHAIN')) ||
(self.opt.certExpired &&
self.conn.authorizationError === 'CERT_HAS_EXPIRED')) {
// authorization successful
if (!self.opt.encoding) {
self.conn.setEncoding('utf-8');
}
if (self.opt.certExpired &&
self.conn.authorizationError === 'CERT_HAS_EXPIRED') {
util.log('Connecting to server with expired certificate');
}
self._connectionHandler();
} else {
// authorization failed
util.log(self.conn.authorizationError);
}
});
} else {
self.conn = net.createConnection(connectionOpts, self._connectionHandler.bind(self));
}
self.conn.requestedDisconnect = false;
self.conn.setTimeout(0);
// Each connection gets its own CyclingPingTimer. The connection forwards the timer's 'timeout' and 'wantPing' events
// to the client object via calling the connectionTimedOut() and connectionWantsPing() functions.
//
// Since the client's "current connection" value changes over time because of retry functionality,
// the client should ignore timeout/wantPing events that come from old connections.
self.conn.cyclingPingTimer = new CyclingPingTimer(self);
(function (conn) {
conn.cyclingPingTimer.on('pingTimeout', function () {
self.connectionTimedOut(conn);
});
conn.cyclingPingTimer.on('wantPing', function () {
self.connectionWantsPing(conn);
});
}(self.conn));
if (!self.opt.encoding) {
self.conn.setEncoding('utf8');
}
var buffer = new Buffer('');
function handleData(chunk) {
self.conn.cyclingPingTimer.notifyOfActivity();
if (typeof (chunk) === 'string') {
buffer += chunk;
} else {
buffer = Buffer.concat([buffer, chunk]);
}
var lines = self.convertEncoding(buffer).toString().split(lineDelimiter);
if (lines.pop()) {
// if buffer is not ended with \r\n, there's more chunks.
return;
} else {
// else, initialize the buffer.
buffer = new Buffer('');
}
lines.forEach(function iterator(line) {
if (line.length) {
var message = parseMessage(line, self.opt.stripColors);
try {
self.emit('raw', message);
} catch (err) {
if (!self.conn.requestedDisconnect) {
throw err;
}
}
}
});
}
self.conn.addListener('data', handleData);
self.conn.addListener('end', function () {
if (self.opt.debug)
util.log('Connection got "end" event');
});
self.conn.addListener('close', function () {
if (self.opt.debug)
util.log('Connection got "close" event');
if (self.conn && self.conn.requestedDisconnect)
return;
if (self.opt.debug)
util.log('Disconnected: reconnecting');
if (self.opt.retryCount !== null && retryCount >= self.opt.retryCount) {
if (self.opt.debug) {
util.log('Maximum retry count (' + self.opt.retryCount + ') reached. Aborting');
}
self.emit('abort', self.opt.retryCount);
return;
}
if (self.opt.debug) {
util.log('Waiting ' + self.opt.retryDelay + 'ms before retrying');
}
setTimeout(function () {
self.connect(retryCount + 1);
}, self.opt.retryDelay);
});
self.conn.addListener('error', function (exception) {
self.emit('netError', exception);
if (self.opt.debug) {
util.log('Network error: ' + exception);
}
});
};
Client.prototype.end = function () {
if (this.conn) {
this.conn.cyclingPingTimer.stop();
this.conn.destroy();
}
this.conn = null;
};
Client.prototype.disconnect = function (message, callback) {
if (typeof (message) === 'function') {
callback = message;
message = undefined;
}
message = message || 'node-irc says goodbye';
var self = this;
if (self.conn.readyState == 'open') {
var sendFunction;
if (self.opt.floodProtection) {
sendFunction = self._sendImmediate;
self._clearCmdQueue();
} else {
sendFunction = self.send;
}
sendFunction.call(self, 'QUIT', message);
}
self.conn.requestedDisconnect = true;
if (typeof (callback) === 'function') {
self.conn.once('end', callback);
}
self.conn.end();
};
Client.prototype.send = function (command) {
var args = Array.prototype.slice.call(arguments);
// Note that the command arg is included in the args array as the first element
if (args[args.length - 1].match(/\s/) || args[args.length - 1].match(/^:/) || args[args.length - 1] === '') {
args[args.length - 1] = ':' + args[args.length - 1];
}
if (this.opt.debug)
util.log('SEND: ' + args.join(' '));
if (!this.conn.requestedDisconnect) {
this.conn.write(args.join(' ') + '\r\n');
}
};
Client.prototype.activateFloodProtection = function (interval) {
var cmdQueue = [],
safeInterval = interval || this.opt.floodProtectionDelay,
self = this,
origSend = this.send,
dequeue;
// Wrapper for the original function. Just put everything to on central
// queue.
this.send = function () {
cmdQueue.push(arguments);
};
this._sendImmediate = function () {
origSend.apply(self, arguments);
};
this._clearCmdQueue = function () {
cmdQueue = [];
};
dequeue = function () {
var args = cmdQueue.shift();
if (args) {
origSend.apply(self, args);
}
};
// Slowly unpack the queue without flooding.
setInterval(dequeue, safeInterval);
dequeue();
};
Client.prototype.join = function (channel, callback) {
var channelName = channel.split(' ')[0];
this.once('join' + channelName, function () {
// if join is successful, add this channel to opts.channels
// so that it will be re-joined upon reconnect (as channels
// specified in options are)
if (this.opt.channels.indexOf(channel) == -1) {
this.opt.channels.push(channel);
}
if (typeof (callback) == 'function') {
return callback.apply(this, arguments);
}
});
this.send.apply(this, ['JOIN'].concat(channel.split(' ')));
};
Client.prototype.part = function (channel, message, callback) {
if (typeof (message) === 'function') {
callback = message;
message = undefined;
}
if (typeof (callback) == 'function') {
this.once('part' + channel, callback);
}
// remove this channel from this.opt.channels so we won't rejoin
// upon reconnect
if (this.opt.channels.indexOf(channel) != -1) {
this.opt.channels.splice(this.opt.channels.indexOf(channel), 1);
}
if (message) {
this.send('PART', channel, message);
} else {
this.send('PART', channel);
}
};
Client.prototype.action = function (channel, text) {
var self = this;
if (typeof text !== 'undefined') {
text.toString().split(/\r?\n/).filter(function (line) {