util = require('util'),
dns = require('dns'),
_ = require('lodash'),
+ winston = require('winston'),
EventBinder = require('./eventbinder.js'),
IrcServer = require('./server.js'),
IrcCommands = require('./commands.js'),
IrcUser = require('./user.js'),
EE = require('../ee.js'),
iconv = require('iconv-lite'),
+ Proxy = require('../proxy.js'),
Socks;
Socks = require('socksjs');
}
-var IrcConnection = function (hostname, port, ssl, nick, user, pass, state, con_num) {
+var IrcConnection = function (hostname, port, ssl, nick, user, options, state, con_num) {
var that = this;
EE.call(this,{
});
this.setMaxListeners(0);
- // Set the first configured encoding as the default encoding
- this.encoding = global.config.default_encoding;
-
+ options = options || {};
+
// Socket state
this.connected = false;
this.nick = nick;
this.user = user; // Contains users real hostname and address
this.username = this.nick.replace(/[^0-9a-zA-Z\-_.\/]/, '');
- this.password = pass;
+ this.password = options.password || '';
+
+ // Set the passed encoding. or the default if none giving or it fails
+ if (!options.encoding || !this.setEncoding(options.encoding)) {
+ this.setEncoding(global.config.default_encoding);
+ }
// State object
this.state = state;
this.socks = false;
}
+ // Kiwi proxy info may be set within a server module. {port: 7779, host: 'kiwi.proxy.com', ssl: false}
+ this.proxy = false;
+
+ // Net. interface this connection should be made through
+ this.outgoing_interface = false;
+
// Options sent by the IRCd
this.options = Object.create(null);
this.cap = {requested: [], enabled: []};
// Buffers for data sent from the IRCd
this.hold_last = false;
- this.held_data = '';
+ this.held_data = null;
this.applyIrcEvents();
};
var socket_connect_event_name = 'connect';
// The destination address
- var dest_addr = this.socks ?
- this.socks.host :
- this.irc_host.hostname;
+ var dest_addr;
+ if (this.socks) {
+ dest_addr = this.socks.host;
+ } else if (this.proxy) {
+ dest_addr = this.proxy.host;
+ } else {
+ dest_addr = this.irc_host.hostname;
+ }
// Make sure we don't already have an open connection
this.disposeSocket();
// Get the IP family for the dest_addr (either socks or IRCd destination)
- getConnectionFamily(dest_addr, function (err, family, host) {
+ getConnectionFamily(dest_addr, function getConnectionFamilyCb(err, family, host) {
var outgoing;
// Decide which net. interface to make the connection through
- if (global.config.outgoing_address) {
+ if (that.outgoing_interface) {
+ // An specific interface has been given for this connection
+ outgoing = this.outgoing_interface;
+
+ } else if (global.config.outgoing_address) {
+ // Pick an interface from the config
if ((family === 'IPv6') && (global.config.outgoing_address.IPv6)) {
outgoing = global.config.outgoing_address.IPv6;
} else {
host = dest_addr;
}
+ // If we have an array of interfaces, select a random one
+ if (typeof outgoing !== 'string' && outgoing.length) {
+ outgoing = outgoing[Math.floor(Math.random() * outgoing.length)];
+ }
+
+ // Make sure we have a valid interface address
+ if (typeof outgoing !== 'string')
+ outgoing = '0.0.0.0';
+
} else {
// No config was found so use the default
outgoing = '0.0.0.0';
}
// Are we connecting through a SOCKS proxy?
- if (this.socks) {
+ if (that.socks) {
that.socket = Socks.connect({
- host: host,
+ host: that.irc_host.host,
port: that.irc_host.port,
ssl: that.ssl,
rejectUnauthorized: global.config.reject_unauthorised_certificates
- }, {host: that.socks.host,
+ }, {host: host,
port: that.socks.port,
user: that.socks.user,
pass: that.socks.pass,
localAddress: outgoing
});
+ } else if (that.proxy) {
+ that.socket = new Proxy.ProxySocket(that.proxy.port, host, {
+ username: that.username,
+ interface: that.proxy.interface
+ }, {ssl: that.proxy.ssl});
+
+ if (that.ssl) {
+ that.socket.connectTls(that.irc_host.port, that.irc_host.hostname);
+ } else {
+ that.socket.connect(that.irc_host.port, that.irc_host.hostname);
+ }
+
} else {
// No socks connection, connect directly to the IRCd
localAddress: outgoing
});
+ // We need the raw socket connect event
+ that.socket.socket.on('connect', function() { rawSocketConnect.call(that, this); });
+
socket_connect_event_name = 'secureConnect';
} else {
}
// Apply the socket listeners
- that.socket.on(socket_connect_event_name, function () {
+ that.socket.on(socket_connect_event_name, function socketConnectCb() {
- // SSL connections have the actual socket as a property
- var socket = (typeof this.socket !== 'undefined') ?
- this.socket :
- this;
+ // TLS connections have the actual socket as a property
+ var is_tls = (typeof this.socket !== 'undefined') ?
+ true :
+ false;
- that.connected = true;
+ // TLS sockets have already called this
+ if (!is_tls)
+ rawSocketConnect.call(that, this);
- // Make note of the port numbers for any identd lookups
- // Nodejs < 0.9.6 has no socket.localPort so check this first
- if (socket.localPort) {
- that.identd_port_pair = socket.localPort.toString() + '_' + socket.remotePort.toString();
- global.clients.port_pairs[that.identd_port_pair] = that;
- }
+ that.connected = true;
socketConnectHandler.call(that);
});
- that.socket.on('error', function (event) {
+ that.socket.on('error', function socketErrorCb(event) {
that.emit('error', event);
});
that.socket.on('data', function () {
- parse.apply(that, arguments);
+ socketOnData.apply(that, arguments);
});
- that.socket.on('close', function (had_error) {
+ that.socket.on('close', function socketCloseCb(had_error) {
that.connected = false;
// Remove this socket form the identd lookup
/**
* Write a line of data to the IRCd
+ * @param data The line of data to be sent
+ * @param force Write the data now, ignoring any write queue
*/
-IrcConnection.prototype.write = function (data, callback) {
+IrcConnection.prototype.write = function (data, force) {
//ENCODE string to encoding of the server
encoded_buffer = iconv.encode(data + '\r\n', this.encoding);
+ if (force) {
+ this.socket.write(encoded_buffer);
+ return;
+ }
+
this.write_buffer.push(encoded_buffer);
// Only flush if we're not writing already
/**
- * Close the connection to the IRCd after sending one last line
+ * Close the connection to the IRCd after forcing one last line
*/
IrcConnection.prototype.end = function (data, callback) {
+ if (!this.socket)
+ return;
+
if (data)
- this.write(data);
+ this.write(data, true);
this.socket.end();
};
function getConnectionFamily(host, callback) {
if (net.isIP(host)) {
if (net.isIPv4(host)) {
- setImmediate(callback, null, 'IPv4', host);
+ callback(null, 'IPv4', host);
} else {
- setImmediate(callback, null, 'IPv6', host);
+ callback(null, 'IPv6', host);
}
} else {
- dns.resolve6(host, function (err, addresses) {
+ dns.resolve6(host, function resolve6Cb(err, addresses) {
if (!err) {
callback(null, 'IPv6', addresses[0]);
} else {
- dns.resolve4(host, function (err, addresses) {
+ dns.resolve4(host, function resolve4Cb(err, addresses) {
if (!err) {
callback(null, 'IPv4',addresses[0]);
} else {
+/**
+ * When a socket connects to an IRCd
+ * May be called before any socket handshake are complete (eg. TLS)
+ */
+var rawSocketConnect = function(socket) {
+ // Make note of the port numbers for any identd lookups
+ // Nodejs < 0.9.6 has no socket.localPort so check this first
+ if (typeof socket.localPort != 'undefined') {
+ this.identd_port_pair = socket.localPort.toString() + '_' + socket.remotePort.toString();
+ global.clients.port_pairs[this.identd_port_pair] = this;
+ }
+};
+
/**
* Handle the socket connect event, starting the IRCd registration
// Let the webirc/etc detection modify any required parameters
connect_data = findWebIrc.call(this, connect_data);
- global.modules.emit('irc authorize', connect_data).done(function () {
+ global.modules.emit('irc authorize', connect_data).done(function ircAuthorizeCb() {
+ var gecos = '[www.kiwiirc.com] ' + that.nick;
+
+ if (global.config.default_gecos) {
+ gecos = global.config.default_gecos.toString().replace('%n', that.nick);
+ gecos = gecos.toString().replace('%h', that.user.hostname);
+ }
+
// Send any initial data for webirc/etc
if (connect_data.prepend_data) {
_.each(connect_data.prepend_data, function(data) {
that.write('PASS ' + that.password);
that.write('NICK ' + that.nick);
- that.write('USER ' + that.username + ' 0 0 :' + '[www.kiwiirc.com] ' + that.nick);
+ that.write('USER ' + that.username + ' 0 0 :' + gecos);
that.emit('connected');
});
// Check if we need to pass the users IP as its username/ident
if (ip_as_username && ip_as_username.indexOf(this.irc_host.hostname) > -1) {
// Get a hex value of the clients IP
- this.username = this.user.address.split('.').map(function(i, idx){
+ this.username = this.user.address.split('.').map(function ipSplitMapCb(i, idx){
var hex = parseInt(i, 10).toString(16);
// Pad out the hex value if it's a single char
}
+/**
+ * Buffer any data we get from the IRCd until we have complete lines.
+ */
+function socketOnData(data) {
+ var data_pos, // Current position within the data Buffer
+ line_start = 0,
+ lines = [],
+ line = '',
+ max_buffer_size = 1024; // 1024 bytes is the maximum length of two RFC1459 IRC messages.
+ // May need tweaking when IRCv3 message tags are more widespread
+
+ // Split data chunk into individual lines
+ for (data_pos = 0; data_pos < data.length; data_pos++) {
+ if (data[data_pos] === 0x0A) { // Check if byte is a line feed
+ lines.push(data.slice(line_start, data_pos));
+ line_start = data_pos + 1;
+ }
+ }
+
+ // No complete lines of data? Check to see if buffering the data would exceed the max buffer size
+ if (!lines[0]) {
+ if ((this.held_data ? this.held_data.length : 0 ) + data.length > max_buffer_size) {
+ // Buffering this data would exeed our max buffer size
+ this.emit('error', 'Message buffer too large');
+ this.socket.destroy();
+
+ } else {
+
+ // Append the incomplete line to our held_data and wait for more
+ if (this.held_data) {
+ this.held_data = Buffer.concat([this.held_data, data], this.held_data.length + data.length);
+ } else {
+ this.held_data = data;
+ }
+ }
+
+ // No complete lines to process..
+ return;
+ }
+
+ // If we have an incomplete line held from the previous chunk of data
+ // merge it with the first line from this chunk of data
+ if (this.hold_last && this.held_data !== null) {
+ lines[0] = Buffer.concat([this.held_data, lines[0]], this.held_data.length + lines[0].length);
+ this.hold_last = false;
+ this.held_data = null;
+ }
+
+ // If the last line of data in this chunk is not complete, hold it so
+ // it can be merged with the first line from the next chunk
+ if (line_start < data_pos) {
+ if ((data.length - line_start) > max_buffer_size) {
+ // Buffering this data would exeed our max buffer size
+ this.emit('error', 'Message buffer too large');
+ this.socket.destroy();
+ return;
+ }
+
+ this.hold_last = true;
+ this.held_data = new Buffer(data.length - line_start);
+ data.copy(this.held_data, 0, line_start);
+ }
+
+ // Process our data line by line
+ for (i = 0; i < lines.length; i++)
+ parseIrcLine.call(this, lines[i]);
+
+}
+
+
/**
* The regex that parses a line of data from the IRCd
* Deviates from the RFC a little to support the '/' character now used in some
* IRCds
*/
-var parse_regex = /^(?:(?:(?:(@[^ ]+) )?):(?:([a-z0-9\x5B-\x60\x7B-\x7D\.\-*]+)|([a-z0-9\x5B-\x60\x7B-\x7D\.\-*]+)!([^\x00\r\n\ ]+?)@?([a-z0-9\.\-:\/_]+)?) )?(\S+)(?: (?!:)(.+?))?(?: :(.+))?$/i;
-
-var parse = function (data) {
- var i,
- msg,
- msg2,
- trm,
- j,
- tags = [],
- tag;
+var parse_regex = /^(?:(?:(?:@([^ ]+) )?):(?:([^\s!]+)|([^\s!]+)!([^\s@]+)@?([^\s]+)?) )?(\S+)(?: (?!:)(.+?))?(?: :(.*))?$/i;
- //DECODE server encoding
- data = iconv.decode(data, this.encoding);
+function parseIrcLine(buffer_line) {
+ var msg,
+ i,
+ tags = [],
+ tag,
+ line = '',
+ msg_obj;
- if (this.hold_last && this.held_data !== '') {
- data = this.held_data + data;
- this.hold_last = false;
- this.held_data = '';
+ // Decode server encoding
+ line = iconv.decode(buffer_line, this.encoding);
+ if (!line) {
+ return;
}
- // If the last line is incomplete, hold it until we have more data
- if (data.substr(-1) !== '\n') {
- this.hold_last = true;
+ // Parse the complete line, removing any carriage returns
+ msg = parse_regex.exec(line.replace(/^\r+|\r+$/, ''));
+
+ if (!msg) {
+ // The line was not parsed correctly, must be malformed
+ //console.log("Malformed IRC line: " + line.replace(/^\r+|\r+$/, ''));
+ winston.warn('Malformed IRC line: %s', line.replace(/^\r+|\r+$/, ''));
+ return;
}
- // Process our data line by line
- data = data.split("\n");
- for (i = 0; i < data.length; i++) {
- if (!data[i]) break;
-
- // If flagged to hold the last line, store it and move on
- if (this.hold_last && (i === data.length - 1)) {
- this.held_data = data[i];
- break;
- }
-
- // Parse the complete line, removing any carriage returns
- msg = parse_regex.exec(data[i].replace(/^\r+|\r+$/, ''));
-
- if (msg) {
- if (msg[1]) {
- tags = msg[1].split(';');
- for (j = 0; j < tags.length; j++) {
- tag = tags[j].split('=');
- tags[j] = {tag: tag[0], value: tag[1]};
- }
- }
- msg = {
- tags: tags,
- prefix: msg[2],
- nick: msg[3],
- ident: msg[4],
- hostname: msg[5] || '',
- command: msg[6],
- params: msg[7] || '',
- trailing: (msg[8]) ? msg[8].trim() : ''
- };
- msg.params = msg.params.split(' ');
- this.irc_commands.dispatch(msg.command.toUpperCase(), msg);
- } else {
- // The line was not parsed correctly, must be malformed
- console.log("Malformed IRC line: " + data[i].replace(/^\r+|\r+$/, ''));
+ // Extract any tags (msg[1])
+ if (msg[1]) {
+ tags = msg[1].split(';');
+
+ for (i = 0; i < tags.length; i++) {
+ tag = tags[i].split('=');
+ tags[i] = {tag: tag[0], value: tag[1]};
}
}
-};
+
+ msg_obj = {
+ tags: tags,
+ prefix: msg[2],
+ nick: msg[3],
+ ident: msg[4],
+ hostname: msg[5] || '',
+ command: msg[6],
+ params: msg[7] ? msg[7].split(/ +/) : []
+ };
+
+ if (msg[8]) {
+ msg_obj.params.push(msg[8].trim());
+ }
+
+ this.irc_commands.dispatch(msg_obj.command.toUpperCase(), msg_obj);
+}
projects / KiwiIRC.git / blobdiff