550 lines
17 KiB
JavaScript
550 lines
17 KiB
JavaScript
const EventEmitter = require('events').EventEmitter;
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const net = require('net');
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const tls = require('tls');
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const parse = require(__dirname+'/parser');
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class IRCConnectionHandler {
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constructor(connection) {
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this.conn = connection;
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}
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handleUserLine(data) {
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switch(data.command) {
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case 'topic':
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this.conn.write(('{0} {1}'+(data.message != '' ? ' :'+data.message : '')).format(data.command.toUpperCase(), data.arguments[0]));
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break;
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case 'kick':
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this.conn.write('{0} {1} :{2}'.format(data.command.toUpperCase(), data.arguments.join(' '), data.message));
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break;
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case 'part':
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this.conn.write('{0} {1} :{2}'.format(data.command.toUpperCase(), data.arguments[0], data.message));
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break;
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case 'nick':
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case 'whois':
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case 'who':
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case 'names':
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case 'join':
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this.conn.write('{0} {1}'.format(data.command.toUpperCase(), data.arguments[0]));
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break;
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case 'quit':
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this.conn.write('{0} :{1}'.format(data.command.toUpperCase(), (data.message == '' ?
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this.conn.globalConfig.default_quit_msg : data.message)));
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break;
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case 'privmsg':
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this.conn.write('PRIVMSG {0} :{1}'.format(data.arguments[0], data.message));
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'privmsg', to: data.arguments[0],
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user: {nickname: this.conn.config.nickname}, message: data.message, server: data.server});
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break;
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case 'notice':
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this.conn.write('NOTICE {0} :{1}'.format(data.arguments[0], data.message));
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'notice', to: data.arguments[0],
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user: {nickname: this.conn.config.nickname}, message: data.message, server: data.server});
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break;
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case 'list':
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this.conn.write(data.command.toUpperCase());
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break;
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case 'ctcp':
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let ctcpmsg = '';
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if(data.arguments[1].toLowerCase() == 'ping')
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ctcpmsg = 'PING '+Math.floor(Date.now()/1000);
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else
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ctcpmsg = data.message;
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this.conn.write('PRIVMSG {0} :\x01{1}\x01'.format(data.arguments[0], ctcpmsg));
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'ctcp_request', to: this.conn.config.nickname,
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user: {nickname: data.arguments[0]}, message: ctcpmsg, server: data.server});
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break;
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default:
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this.conn.write(data.command.toUpperCase()+' '+data.message);
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}
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if(data.targetType == 'channel' || data.targetType == 'message') {
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this.conn.write('PRIVMSG {0} :{1}'.format(data.target, data.message));
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'privmsg', to: data.target,
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user: {nickname: this.conn.config.nickname}, message: data.message, server: data.server});
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}
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}
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whoisManage(whom, list) {
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if(!this.conn.queue.whois)
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this.conn.queue.whois = {};
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if(!this.conn.queue.whois[whom])
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this.conn.queue.whois[whom] = list;
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else
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for(let a in list)
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this.conn.queue.whois[whom][a] = list[a];
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}
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ctcpManage(data) {
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let line = data.trailing.replace(/\x01/g, '').trim().split(' ');
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if(!line[0]) return;
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line[0] = line[0].toUpperCase();
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let resp = '\x01'+line[0]+' {0}\x01';
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if(line[0] == 'PING' && line[1] != null && line[1] != '') {
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resp = resp.format(line.slice(1).join(' '));
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} else if(line[0] == 'CLIENTINFO') {
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resp = resp.format('CLIENTINFO PING '+Object.keys(this.conn.extras.ctcps).join(' '));
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} else if(this.conn.extras.ctcps && this.conn.extras.ctcps[line[0]] != null) {
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resp = resp.format(this.conn.extras.ctcps[line[0]](data, this.conn));
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} else {
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resp = null;
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}
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if (resp != null)
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this.conn.write('NOTICE {0} :{1}'.format(data.user.nickname, resp));
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return resp != null;
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}
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handleServerLine(line) {
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if(this.conn.queue['supportsmsg'] && line.command != '005') {
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delete this.conn.queue['supportsmsg'];
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if(this.conn.config.autojoin.length > 0)
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for(let t in this.conn.config.autojoin)
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this.conn.write('JOIN '+this.conn.config.autojoin[t]);
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this.conn.emit('authenticated', {});
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}
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let serverName = this.conn.config.server;
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let realServerName = this.conn.data.actualServer;
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if(line.user.nickname == '')
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realServerName = line.user.hostname;
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let list = null;
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switch(line.command) {
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case 'error':
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this.conn.emit('connerror', {type: 'irc_error', raw: line.raw});
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break;
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case '001':
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this.conn.data.actualServer = line.user.hostname;
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break;
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case '005':
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if(!this.conn.queue['supportsmsg'])
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this.conn.queue['supportsmsg'] = true;
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this.conn.authenticated = true;
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let argv = line.arguments.slice(1);
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for(let a in argv) {
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let t = argv[a];
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if(t.indexOf('=') != -1) {
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t = t.split('=');
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if(t[0] === 'PREFIX') {
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let d = t[1].match(/\((\w+)\)(.*)/);
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let r = d[1].split('');
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let aa = d[2].split('');
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for(let b in r)
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this.conn.data.supportedModes[r[b]] = aa[b];
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} else if(t[0] === 'NETWORK') {
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this.conn.data.network = t[1];
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} else if(t[0] === 'CHANNELLEN') {
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this.conn.data.max_channel_length = parseInt(t[1]);
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}
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this.conn.data.serverSupports[t[0]] = t[1];
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} else {
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this.conn.data.serverSupports[t] = true;
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}
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}
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break;
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case 'JOIN':
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if(line.trailing) {
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this.conn.emit('pass_to_client', {type: 'event_join_channel', user: line.user, channel: line.trailing, server: serverName });
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} else {
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for(let i in line.arguments) {
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this.conn.emit('pass_to_client', {type: 'event_join_channel', user: line.user, channel: line.arguments[i], server: serverName });
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}
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}
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break;
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case 'PART':
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this.conn.emit('pass_to_client', {type: 'event_part_channel', user: line.user, channel: line.arguments[0], reason: line.trailing, server: serverName });
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break;
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case 'QUIT':
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this.conn.emit('pass_to_client', {type: 'event_quit', user: line.user, reason: line.trailing, server: serverName });
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break;
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case '353':
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if(!this.conn.queue['names'])
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this.conn.queue['names'] = {};
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let splittrail = line.trailing.split(' ');
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for(let a in splittrail) {
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let nick = splittrail[a];
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if(nick.trim() == '') continue;
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if(this.conn.queue['names'][line.arguments[2]])
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this.conn.queue['names'][line.arguments[2]].push(nick);
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else
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this.conn.queue['names'][line.arguments[2]] = [nick];
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}
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break;
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case '366':
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if(!this.conn.queue['names']) break;
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if(this.conn.queue['names'][line.arguments[1]]) {
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this.conn.emit('pass_to_client', {type: 'channel_nicks', channel: line.arguments[1], nicks: this.conn.queue['names'][line.arguments[1]], server: serverName});
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delete this.conn.queue['names'][line.arguments[1]];
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}
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if(Object.keys(this.conn.queue['names']).length == 0)
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delete this.conn.queue['names'];
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break;
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case 'PRIVMSG':
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if(line.trailing.indexOf('\x01') == 0 && line.trailing.indexOf('\x01ACTION') != 0)
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return this.ctcpManage(line);
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if(line.user.nickname != '')
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'privmsg', to: line.arguments[0],
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user: line.user, message: line.trailing, server: serverName});
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else
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this.conn.emit('pass_to_client', {type: 'server_message', messageType: 'privmsg', message: line.trailing, server: serverName, from: realServerName});
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break;
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case 'NOTICE':
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if(line.trailing.indexOf('\x01') == 0 && line.trailing.indexOf('\x01ACTION') != 0) {
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let composethis = line.trailing.replace(/\x01/g,'').trim().split(' ');
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composethis[0] = composethis[0].toUpperCase();
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let message = composethis.join(' ');
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if(composethis[0] == 'PING')
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message = Math.floor(Date.now()/1000) - composethis[1]+'s';
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'ctcp_response', to: line.arguments[0],
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user: line.user, message: message, server: serverName});
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return;
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}
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if(line.user.nickname != '')
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this.conn.emit('pass_to_client', {type: 'message', messageType: 'notice', to: line.arguments[0],
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user: line.user, message: line.trailing, server: serverName});
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else
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this.conn.emit('pass_to_client', {type: 'server_message', messageType: 'notice', message: line.trailing, server: serverName, from: realServerName});
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break;
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case 'NICK':
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if(line.user.nickname == this.conn.config.nickname)
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this.conn.config.nickname = line.arguments[0];
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this.conn.emit('pass_to_client', {type: 'nick_change', nick: line.user.nickname, newNick: line.arguments[0], server: serverName});
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break;
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case 'KICK':
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this.conn.emit('pass_to_client', {type: 'event_kick_channel', user: line.user, channel: line.arguments[0], reason: line.trailing, kickee: line.arguments[1], server: serverName});
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break;
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case 'TOPIC':
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this.conn.emit('pass_to_client', {type: 'channel_topic', channel: line.arguments[0], set_by: line.user.nickname, topic: line.trailing, server: serverName});
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break;
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case '332':
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this.conn.emit('pass_to_client', {type: 'channel_topic', channel: line.arguments[1], topic: line.trailing, server: serverName});
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break;
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case '333':
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this.conn.emit('pass_to_client', {type: 'channel_topic', channel: line.arguments[1], set_by: line.arguments[2], time: line.arguments[3], server: serverName});
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break;
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case '375':
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case '372':
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case '376':
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this.conn.emit('pass_to_client', {type: 'server_message', messageType: 'motd', message: line.trailing, server: serverName, from: realServerName});
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break;
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case '006':
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case '007':
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case '251':
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case '255':
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case '270':
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case '290':
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case '292':
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case '323':
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case '351':
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case '381':
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this.conn.emit('pass_to_client', {type: 'server_message', messageType: 'regular', message: line.trailing, server: serverName, from: realServerName});
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break;
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case '252':
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case '254':
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case '396':
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case '042':
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this.conn.emit('pass_to_client', {type: 'server_message', messageType: 'regular', message: line.arguments[1] +' '+ line.trailing, server: serverName, from: realServerName});
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break;
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case '501':
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case '401':
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case '402':
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case '421':
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case '482':
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case '331':
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case '432':
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this.conn.emit('pass_to_client', {type: 'message', to: null, message: line.arguments[1]+': '+line.trailing,
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server: serverName, user: {nickname: realServerName}, messageType: 'error'});
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break;
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case 'MODE':
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let isChannelMode = false;
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let method = '+';
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if(line.arguments[0].indexOf('#') != -1)
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isChannelMode = true;
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let modes = line.arguments[1];
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if(!modes && line.trailing != '')
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modes = line.trailing;
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let sender = line.user.nickname;
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if(sender == '')
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sender = line.user.hostname;
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method = modes.substring(0, 1);
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modes = modes.substring(1).split('');
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let pass = [];
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if(isChannelMode) {
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for(let i in modes) {
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let mode = modes[i];
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if(this.conn.data.supportedModes[mode])
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this.conn.emit('pass_to_client', {type: 'mode_'+(method=='+'?'add':'del'), target: line.arguments[0], mode: mode,
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modeTarget: line.arguments[2+parseInt(i)], server: serverName, user: {nickname: sender}});
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else
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pass.push(mode);
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}
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} else {
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pass = modes;
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}
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if(pass.length > 0)
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this.conn.emit('pass_to_client', {type: 'mode', target: line.arguments[0], message: method+pass.join(''),
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server: serverName, user: {nickname: sender}});
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break;
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case '433':
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let newNick = this.conn.config.nickname + '_';
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this.conn.write('NICK '+newNick);
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this.conn.config.nickname = newNick;
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break;
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case '311':
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// start whois queue
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list = {
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nickname: line.arguments[1],
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hostmask: '{0}!{1}@{2}'.format(line.arguments[1], line.arguments[2], line.arguments[3]),
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realname: line.trailing || ''
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '319':
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// whois: channels
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list = {
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channels: line.trailing.split(' '),
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '378':
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list = {
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connectingFrom: line.trailing,
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '379':
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list = {
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usingModes: line.trailing,
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '312':
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list = {
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server: line.arguments[2],
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server_name: line.trailing || ''
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '313':
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list = {
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title: line.trailing
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '330':
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list = {
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loggedIn: line.trailing+' '+line.arguments[2]
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '335':
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list = {
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bot: true
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '307':
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list = {
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registered: line.trailing
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '671':
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list = {
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secure: true
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '317':
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list = {
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signonTime: line.arguments[3],
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idleSeconds: line.arguments[2]
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};
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this.whoisManage(line.arguments[1], list);
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break;
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case '318':
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if(!this.conn.queue.whois || !this.conn.queue.whois[line.arguments[1]])
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return;
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this.conn.emit('pass_to_client', {type: 'whoisResponse', whois: this.conn.queue.whois[line.arguments[1]],
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server: serverName, from: realServerName});
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delete this.conn.queue.whois[line.arguments[1]];
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break;
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case '321':
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this.conn.emit('pass_to_client', {type: 'listedchan', channel: 'Channel', users: 'Users', topic: 'Topic',
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server: serverName, from: realServerName});
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break;
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case '322':
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this.conn.emit('pass_to_client', {type: 'listedchan', channel: line.arguments[1], users: line.arguments[2], topic: line.trailing,
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server: serverName, from: realServerName});
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break;
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case 'CAP':
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// might come in the future, who knows
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this.conn.write('CAP END');
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break;
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}
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}
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}
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class IRCConnection extends EventEmitter {
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constructor(providedInfo, globalConfig, extras) {
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super();
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this.globalConfig = globalConfig;
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this.extras = extras || { authenticationSteps: [], ctcps: {} };
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this.config = {
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nickname: 'teemant',
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username: globalConfig.username,
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realname: globalConfig.realname,
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server: 'localhost',
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port: 6667,
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autojoin: [],
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secure: globalConfig.secure_by_default,
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password: '',
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address: '0.0.0.0',
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rejectUnauthorized: globalConfig.rejectUnauthorizedCertificates
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};
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for(let a in providedInfo) {
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this.config[a] = providedInfo[a];
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}
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this.socket = null;
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this.connected = false;
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this.authenticated = false;
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this.handler = new IRCConnectionHandler(this);
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this.data = {
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serverSupports: {},
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network: this.config.server,
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actualServer: this.config.server,
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max_channel_length: 64,
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supportedModes: {}
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};
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this.authorizationError = '';
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this.queue = {};
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}
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on(...args) {
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return super.on(...args);
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}
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emit(...args) {
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return super.emit(...args);
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}
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connect() {
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this.socket = (this.config.secure ? tls : net).connect({port: this.config.port, host: this.config.server,
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rejectUnauthorized: this.config.rejectUnauthorized}, () => {
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this.connected = true;
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this.authenticate();
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|
});
|
|
|
|
this.socket.setEncoding(this.globalConfig.encoding);
|
|
this.socket.setTimeout(this.globalConfig.timeout);
|
|
|
|
this.socket.on('error', (data) => {
|
|
this.emit('connerror', {type: 'sock_error', message: 'A socket error occured.', raw: data});
|
|
});
|
|
|
|
this.socket.on('lookup', (err, address, family, host) => {
|
|
if(err) {
|
|
this.emit('connerror', {type: 'resolve_error', message: 'Failed to resolve host.'});
|
|
} else {
|
|
this.emit('lookup', {address: address, family: address, host: host});
|
|
this.config.address = address;
|
|
}
|
|
});
|
|
|
|
let buffer = '';
|
|
this.socket.on('data', (chunk) => {
|
|
buffer += chunk;
|
|
let data = buffer.split('\r\n');
|
|
buffer = data.pop();
|
|
data.forEach((line) => {
|
|
if(line.indexOf('PING') === 0) {
|
|
this.socket.write('PONG'+line.substring(4)+'\r\n');
|
|
return;
|
|
}
|
|
this.emit('raw', line);
|
|
let parsed = parse(line);
|
|
this.emit('line', parsed);
|
|
this.handler.handleServerLine(parsed);
|
|
});
|
|
});
|
|
|
|
this.socket.on('close', (data) => {
|
|
if(!this.queue['close'])
|
|
this.emit('closed', {type: 'sock_closed', raw: data, message: 'Connection closed.'});
|
|
|
|
this.connected = false;
|
|
this.authenticated = false;
|
|
});
|
|
}
|
|
|
|
authenticate() {
|
|
if (this.config.password)
|
|
this.socket.write('PASS {0}\r\n'.format(this.config.password));
|
|
|
|
if(this.extras.authenticationSteps) {
|
|
for(let i in this.extras.authenticationSteps) {
|
|
let step = this.extras.authenticationSteps[i];
|
|
step.authenticate(this);
|
|
}
|
|
}
|
|
|
|
this.socket.write('USER {0} 8 * :{1}\r\n'.format(this.config.username, this.config.realname));
|
|
this.socket.write('NICK {0}\r\n'.format(this.config.nickname));
|
|
}
|
|
|
|
disconnect(message) {
|
|
if(!this.connected) {
|
|
this.emit('connerror', {type: 'sock_closed', message: 'Connection already closed.'});
|
|
return;
|
|
}
|
|
|
|
this.queue['close'] = true;
|
|
this.socket.write('QUIT :{0}\r\n'.format(message != null ? message : this.globalConfig.default_quit_msg));
|
|
}
|
|
|
|
write(message) {
|
|
if(!this.connected) {
|
|
this.emit('connerror', {type: 'sock_closed', message: 'Connection is closed.'});
|
|
return;
|
|
}
|
|
this.socket.write(message+'\r\n');
|
|
}
|
|
|
|
}
|
|
|
|
module.exports = IRCConnection;
|