2007 lines
109 KiB
JavaScript
2007 lines
109 KiB
JavaScript
const net = require('net');
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const dns = require('dns');
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const { crc16 } = require('easy-crc');
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const tls = require('tls');
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const fs = require('fs');
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const WTVShared = require('./WTVShared.js').WTVShared;
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class WTVIRC {
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/*
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* @constructor
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* @class WTVIRC
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* WTVIRC - A small IRC server implementation for WebTV
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* Tested with WebTV and KvIRC
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* This is a basic implementation and does not cover all IRC features.
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* Supports unencrypted and encrypted (SSL) connections on the same port.
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* It supports basic commands like NICK, USER, JOIN, PART, PRIVMSG, NOTICE, TOPIC, AWAY, MODE, KICK, and PING.
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* Basic IRCOp functionality is included, you can basically be an channel operator in every channel, or /kill users.
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* Channel modes are supported, including invite-only, topic protection, password protection, and user modes (op/voice).
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* SSL only channel mode +z is supported. As is usermode +Z (no DMs from non-SSL users)
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*
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* TODO: k-line? probably not, but maybe in a different format.
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* TODO: Test for crashes with arbitrary data, or malformed commands (especially SSL handshake).
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*
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* @param {Object} minisrv_config - The configuration object for minisrv.
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* @param {string} [host='localhost'] - The host to bind the IRC server to.
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* @param {number} [port=6667] - The port to bind the IRC server to.
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* @param {boolean} [debug=false] - Whether to enable debug mode for logging.
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*/
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constructor(minisrv_config, host = 'localhost', port = 6667, debug = false) {
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this.minisrv_config = minisrv_config;
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this.wtvshared = new WTVShared(minisrv_config);
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this.version =
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this.host = host;
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this.port = port;
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this.debug = debug;
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this.server = null;
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this.clients = [];
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this.usernames = new Map(); // nickname -> username
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this.channels = new Map();
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this.channeltimestamps = new Map(); // channel -> timestamp of creation
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this.channelops = new Map(); // channel -> Set of operators
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this.channelvoices = new Map(); // channel -> Set of voiced users
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this.channeltopics = new Map(); // channel -> topic
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this.channelinvites = new Map(); // channel -> Set of invited users
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this.channelbans = new Map(); // channel -> Set of banned users
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this.channelexemptions = new Map(); // channel -> Set of exempted users
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this.inviteexceptions = new Map(); // channel -> Set of users who can bypass invite only mode
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this.channelmodes = new Map(); // channel -> Array of modes (e.g. ['m', 'i', 'l10', 'k secret'])
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this.usertimestamps = new Map(); // nickname -> timestamp since last message
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this.usermodes = new Map(); // nickname -> Array of modes (e.g. ['w', 'i'])
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this.usersignontimestamps = new Map(); // nickname -> timestamp since user signed on
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this.nicknames = new Map(); // socket -> nickname
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this.awaymsgs = new Map(); // nickname -> away message
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this.channelprefixes = ['#','&'];
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this.default_channel_modes = ['n','t'];
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this.default_user_modes = ['x'];
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this.servername = 'irc.local';
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this.server_start_time = Date.now();
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this.allowed_characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_[]{}\\|^-';
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this.irc_config = minisrv_config.config.irc || {};
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this.oper_username = this.irc_config.oper_username || 'minisrv';
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this.oper_password = this.irc_config.oper_password || 'changeme573';
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this.oper_enabled = this.irc_config.oper_enabled || this.debug || false; // Default to off to prevent accidental use with default credentials
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this.irc_motd = this.irc_config.motd || 'Welcome to the minisrv WebTV IRC server!';
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this.nicklen = this.irc_config.nick_len || 31;
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this.maxbans = this.irc_config.max_bans || 100;
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this.maxlimit = this.irc_config.max_limit || 50;
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this.maxexcept = this.irc_config.max_except || 100;
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this.maxinvite = this.irc_config.max_invite || 100;
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this.maxkeylen = this.irc_config.max_keylen || 24;
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this.channellimit = this.irc_config.channel_limit || 10;
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this.channellen = this.irc_config.channel_len || 32;
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this.topiclen = this.irc_config.topic_len || 255;
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this.kicklen = this.irc_config.kick_len || 255;
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this.awaylen = this.irc_config.away_len || 200;
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this.enable_ssl = this.irc_config.enable_ssl || false;
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this.maxtargets = this.irc_config.max_targets || 4;
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this.kick_insecure_on_z = this.irc_config.kick_insecure_on_z || true; // If true, users without SSL connections will be kicked from a channel when +z is applied
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this.clientpeak = 0;
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this.caps = [
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`AWAYLEN=${this.awaylen} CASEMAPPING=rfc1459 CHANMODES=beI,k,l,itmnpz CHANNELLEN=${this.channellen} CHANTYPES=${this.channelprefixes.join('')} PREFIX=(ov)@+ USERMODES=oxizZws MAXLIST=b:${this.maxbans},e:${this.maxexcept},i:${this.maxinvite},k:${this.maxkeylen},l:${this.maxlimit}`,
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`CHARSET=ascii MODES=3 EXCEPTS=e INVEX=I CHANLIMIT=${this.channelprefixes.join('')}:${this.channellimit} NICKLEN=${this.nicklen} TOPICLEN=${this.topiclen} KICKLEN=${this.kicklen}`
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];
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}
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start() {
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this.server_start_time = Date.now();
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this.server = net.createServer((socket) => {
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// Detect SSL handshake and wrap socket if needed
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socket.once('data', (firstChunk) => {
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socket.removeAllListeners('data');
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socket.pause();
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socket.on('error', (err) => {
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if (this.debug) {
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console.error('Socket error:', err);
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}
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this.terminateSession(socket, true);
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});
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// Check if the first byte indicates SSL/TLS handshake (0x16 for TLS Handshake)
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if (Buffer.isBuffer(firstChunk) ? firstChunk[0] === 0x16 : firstChunk.charCodeAt(0) === 0x16) {
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if (!this.enable_ssl) {
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// If SSL is not enabled, close the socket
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socket.write(`:${this.servername} 421 * :SSL is not enabled on this server\r\n`);
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socket.end();
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return;
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}
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// SSL detected, upgrade socket to TLS
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const keyBuffer = fs.readFileSync(this.wtvshared.parseConfigVars(this.irc_config.ssl_cert.key));
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const certBuffer = fs.readFileSync(this.wtvshared.parseConfigVars(this.irc_config.ssl_cert.cert));
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// Upgrade the socket to TLS (SSL handshake)
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const secureSocket = new tls.TLSSocket(socket, {
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isServer: true,
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ALPNProtocols: ['irc'],
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secureContext: tls.createSecureContext({
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key: keyBuffer,
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cert: certBuffer,
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}),
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});
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socket.push(firstChunk);
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secureSocket.on('error', (err) => {
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this.terminateSession(secureSocket, true);
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});
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secureSocket.on('close', () => {
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this.terminateSession(secureSocket, false);
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});
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// Only start processing after handshake is complete
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secureSocket.on('secure', () => {
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if (this.debug) {
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console.log('Secure connection established');
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}
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if (this.debug) {
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const originalWrite = secureSocket.write;
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secureSocket.write = function (...args) {
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var log_args = args.map(arg => {
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if (typeof arg === 'string') {
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return arg.replace(/\r\n/g, '\\r\\n').replace(/\n/g, '\\n');
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}
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return arg;
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});
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console.log('<', ...log_args);
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return originalWrite.apply(secureSocket, args);
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};
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}
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// Feed the first chunk into the TLS socket for handshake
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socket.removeAllListeners('error');
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secureSocket.setEncoding('ascii');
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secureSocket.registered = false;
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secureSocket.nickname = '';
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secureSocket.username = '';
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secureSocket.realhost = socket.remoteAddress
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secureSocket.host = this.filterHostname(secureSocket, socket.remoteAddress);
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this.getHostname(secureSocket, (hostname) => {
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secureSocket.realhost = hostname;
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secureSocket.host = this.filterHostname(secureSocket, hostname);
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});
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secureSocket.timestamp = Date.now();
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secureSocket.secure = true;
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secureSocket.uniqueId = parseInt(crc16('CCITT-FALSE', Buffer.from(String(secureSocket.remoteAddress) + String(secureSocket.remotePort), "utf8")).toString(16), 16);
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// Push the secure socket to clients
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this.clients.push(secureSocket);
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this.clientpeak = Math.max(this.clientpeak, this.clients.length);
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secureSocket.write(`:${this.servername} NOTICE AUTH :Welcome to minisrv IRC Server\r\n`);
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secureSocket.on('data', data => {
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this.processSocketData(secureSocket, data);
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});
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secureSocket.on('end', () => {
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this.terminateSession(secureSocket, false);
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});
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});
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secureSocket.resume();
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return;
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} else {
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// Not SSL, re-emit the data event for normal processing
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if (this.debug) {
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const originalWrite = socket.write;
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socket.write = function (...args) {
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var log_args = args.map(arg => {
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if (typeof arg === 'string') {
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return arg.replace(/\r\n/g, '\\r\\n').replace(/\n/g, '\\n');
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}
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return arg;
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});
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console.log('<', ...log_args);
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return originalWrite.apply(socket, args);
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};
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}
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socket.setEncoding('ascii');
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socket.registered = false;
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socket.nickname = '';
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socket.username = '';
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socket.realhost = socket.remoteAddress;
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socket.host = this.filterHostname(socket, socket.remoteAddress);
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this.getHostname(socket, (hostname) => {
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socket.realhost = hostname;
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socket.host = this.filterHostname(socket, hostname);
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});
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socket.timestamp = Date.now();
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socket.secure = false;
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socket.uniqueId = parseInt(crc16('CCITT-FALSE', Buffer.from(String(socket.remoteAddress) + String(socket.remotePort), "utf8")).toString(16), 16);
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socket.write(`:${this.servername} NOTICE AUTH :Welcome to minisrv IRC Server\r\n`);
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socket.on('data', data => {
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this.processSocketData(socket, data);
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});
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socket.on('end', () => {
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this.terminateSession(socket, false);
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});
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socket.on('error', () => {
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this.terminateSession(socket, true);
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});
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socket.emit('data', firstChunk.toString('ascii'));
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socket.resume();
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this.clients.push(socket);
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this.clientpeak = Math.max(this.clientpeak, this.clients.length);
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return;
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}
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});
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});
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this.server.listen(this.port, this.host, () => {
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if (this.debug) {
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console.log(`IRC server started on port ${this.host}:${this.port}`);
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}
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});
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}
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processSocketData(socket, data) {
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// Ensure data is a string
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if (typeof data !== 'string') {
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if (Buffer.isBuffer(data)) {
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data = data.toString('utf8');
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} else if (data && typeof data.toString === 'function') {
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data = data.toString();
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} else {
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return; // Invalid data, ignore
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}
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}
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const lines = data.split(/\r\n|\n/).filter(Boolean);
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for (let line of lines) {
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if (this.debug) {
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console.log(`> ${line}`);
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}
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const [command, ...params] = line.trim().split(' ');
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switch (command.toUpperCase()) {
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case 'OPER':
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if (!socket.registered) {
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socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
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break;
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}
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if (!this.oper_enabled) {
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socket.write(`:${this.servername} 491 ${socket.nickname} :This server does not support IRC operators\r\n`);
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break;
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}
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if (params.length < 2) {
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socket.write(`:${this.servername} 461 ${socket.nickname} OPER :Not enough parameters\r\n`);
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break;
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}
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const [operName, operPassword] = params;
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if (operName !== this.oper_username) {
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socket.write(`:${this.servername} 491 ${socket.nickname} :No permission\r\n`);
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break;
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}
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if (operPassword !== this.oper_password) {
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socket.write(`:${this.servername} 464 ${socket.nickname} :Password incorrect\r\n`);
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break;
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}
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var usermodes = this.usermodes.get(socket.nickname) || [];
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if (usermodes === true) {
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usermodes = [];
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}
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this.usermodes.set(socket.nickname, [...usermodes, 'o']);
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socket.write(`:${this.servername} 381 ${socket.nickname} :You are now an IRC operator\r\n`);
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socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +o\r\n`);
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break;
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case 'UPTIME':
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if (!socket.registered) {
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socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
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break;
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}
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const uptime = Math.floor((Date.now() - this.server_start_time) / 1000);
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const days = Math.floor(uptime / 86400);
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const hours = Math.floor((uptime % 86400) / 3600);
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const minutes = Math.floor((uptime % 3600) / 60);
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const seconds = uptime % 60;
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socket.write(`:${this.servername} 242 ${socket.nickname} :Server uptime is ${days} days, ${hours} hours, ${minutes} minutes, ${seconds} seconds\r\n`);
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break;
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case 'KICK':
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if (!socket.registered) {
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socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
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break;
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}
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if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
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socket.write(`:${this.servername} 482 ${socket.nickname} ${channel} :You're not channel operator\r\n`);
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break;
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} else {
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if (!this.channelops.get(channel).has(socket.nickname)) {
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socket.write(`:${this.servername} 482 ${socket.nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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if (params.length < 2) {
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socket.write(`:${this.servername} 461 ${socket.nickname} KICK :Not enough parameters\r\n`);
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break;
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}
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this.usertimestamps.set(socket.nickname, Date.now());
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var channel = params[0];
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const targetNick = params[1];
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if (!this.channels.has(channel)) {
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socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
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break;
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}
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if (!this.channels.get(channel).has(targetNick)) {
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socket.write(`:${this.servername} 441 ${socket.nickname} ${targetNick} :They aren't on that channel\r\n`);
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break;
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}
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this.channels.get(channel).delete(targetNick);
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var targetSocket = Array.from(this.clients).find(s => this.nicknames.get(s) === targetNick);
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if (params.length > 2) {
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let reason = params.slice(2).join(' ');
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if (reason.startsWith(':')) {
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reason = reason.slice(1);
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}
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targetSocket.write(`:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick} :${reason}\r\n`);
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this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick} :${reason}\r\n`);
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break;
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} else {
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targetSocket.write(`:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick}\r\n`);
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this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick}\r\n`);
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}
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break;
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case 'TOPIC':
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if (!socket.registered) {
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socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
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break;
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}
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if (params.length < 1) {
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socket.write(`:${this.servername} 461 ${socket.nickname} TOPIC :Not enough parameters\r\n`);
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break;
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}
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var chan_modes = this.channelmodes.get(channel) || [];
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if (chan_modes.includes('t')) {
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// Only allow channel operators to change the topic if +t is set
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if (!this.channelops.has(channel) || !this.channelops.get(channel).has(socket.nickname)) {
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socket.write(`:${this.servername} 482 ${socket.nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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this.usertimestamps.set(socket.nickname, Date.now());
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var channel = params[0];
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if (!this.channels.has(channel)) {
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socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
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break;
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}
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if (params.length > 1) {
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var topic = params.slice(1).join(' ');
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if (topic.startsWith(':')) {
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topic = topic.slice(1);
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}
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this.channeltopics.set(channel, topic);
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socket.write(`:${this.servername} 332 ${socket.nickname} ${channel} :${topic}\r\n`);
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this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} TOPIC ${channel} :${topic}\r\n`, socket);
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} else {
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const topic = this.channeltopics.get(channel) || 'No topic set';
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socket.write(`:${this.servername} 331 ${socket.nickname} ${channel} :${topic}\r\n`);
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}
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break;
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case "AWAY":
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if (!socket.registered) {
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socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
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break;
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}
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this.usertimestamps.set(socket.nickname, Date.now());
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if (params.length > 0) {
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socket.write(`:${this.servername} 306 ${socket.nickname} :You are now marked as away\r\n`);
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let awayMsg = params.join(' ');
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if (awayMsg.startsWith(':')) {
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awayMsg = awayMsg.slice(1);
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}
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this.awaymsgs.set(socket.nickname, awayMsg);
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} else {
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socket.write(`:${this.servername} 305 ${socket.nickname} :You are no longer marked as away\r\n`);
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this.awaymsgs.delete(socket.nickname);
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}
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break;
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case 'CAP':
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// Minimal CAP support: just acknowledge LS
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if (params[0] && params[0].toUpperCase() === 'LS') {
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socket.write('CAP * LS :\r\n');
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}
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break;
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case 'MODE':
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if (!socket.registered) {
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socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
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break;
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}
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if (params.length < 1) {
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socket.write(`:${this.servername} 461 ${socket.nickname} MODE :Not enough parameters\r\n`);
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break;
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}
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channel = params[0];
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var isChannel = true;
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if (!this.channels.has(channel)) {
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isChannel = false;
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}
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// Check if 'channel' is actually a user (nickname) instead of a channel name
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|
let isUser = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (channel.startsWith(prefix)) {
|
|
isUser = false;
|
|
break;
|
|
} else {
|
|
isUser = true;
|
|
}
|
|
}
|
|
if (!isChannel && !isUser) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel or user\r\n`);
|
|
break;
|
|
}
|
|
const mode = params[1];
|
|
if (isUser) {
|
|
if (!this.isIRCOp(socket.nickname) && channel !== socket.nickname) {
|
|
socket.write(`:${this.servername} 501 ${socket.nickname} :Cannot set modes on other users\r\n`);
|
|
} else {
|
|
|
|
var usermodes = this.usermodes.get(socket.nickname) || [];
|
|
if (usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
if (!mode) {
|
|
// List user modes
|
|
if (usermodes.length === 0) {
|
|
socket.write(`:${this.servername} 324 ${socket.nickname} ${channel} :No modes set\r\n`);
|
|
} else {
|
|
const modes = usermodes.map(m => (m.startsWith('+') ? m : '+' + m)).join(' ');
|
|
socket.write(`:${this.servername} 324 ${socket.nickname} ${channel} :${modes}\r\n`);
|
|
}
|
|
} else if (mode.startsWith('+x')) {
|
|
this.usermodes.set(socket.nickname, [...usermodes, 'x']);
|
|
socket.host = this.filterHostname(socket, socket.realhost);
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +x\r\n`);
|
|
socket.write(`:${this.servername} 396 ${socket.nickname} ${socket.host} :is now your displayed host\r\n`);
|
|
} else if (mode.startsWith('-x')) {
|
|
this.usermodes.set(socket.nickname, (usermodes).filter(m => m !== 'x'));
|
|
socket.host = socket.realhost
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -x\r\n`);
|
|
socket.write(`:${this.servername} 396 ${socket.nickname} ${socket.host} :is now your displayed host\r\n`);
|
|
} else if (mode.startsWith('+w')) {
|
|
this.usermodes.set(socket.nickname, [...usermodes, 'w']);
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +w\r\n`);
|
|
} else if (mode.startsWith('-w')) {
|
|
this.usermodes.set(socket.nickname, (usermodes).filter(m => m !== 'w'));
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -w\r\n`);
|
|
} else if (mode.startsWith('+i')) {
|
|
this.usermodes.set(socket.nickname, [...usermodes, 'i']);
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +i\r\n`);
|
|
} else if (mode.startsWith('-i')) {
|
|
this.usermodes.set(socket.nickname, (usermodes).filter(m => m !== 'i'));
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -i\r\n`);
|
|
} else if (mode.startsWith('+s')) {
|
|
this.usermodes.set(socket.nickname, [...usermodes, 's']);
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +s\r\n`);
|
|
} else if (mode.startsWith('-s')) {
|
|
this.usermodes.set(socket.nickname, (usermodes).filter(m => m !== 's'));
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -s\r\n`);
|
|
} else if (mode.startsWith('+z') || mode.startsWith('-z')) {
|
|
socket.write(`:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :is set by the server and cannot be changed\r\n`);
|
|
} else if (mode.startsWith('+Z')) {
|
|
if (!socket.secure) {
|
|
socket.write(`:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :You must be secure to set this mode\r\n`);
|
|
break;
|
|
}
|
|
this.usermodes.set(socket.nickname, [...usermodes, 'Z']);
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +Z\r\n`);
|
|
} else if (mode.startsWith('-Z')) {
|
|
if (!socket.secure) {
|
|
socket.write(`:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :You must be secure to set this mode\r\n`);
|
|
break;
|
|
}
|
|
this.usermodes.set(socket.nickname, (usermodes).filter(m => m !== 'Z'));
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -Z\r\n`);
|
|
} else {
|
|
socket.write(`:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :is unknown mode char to me\r\n`);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
if (!mode) {
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
let validPrefix = this.channelprefixes.some(prefix => channel.startsWith(prefix));
|
|
if (!validPrefix) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channels.has(channel)) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
|
|
chan_modes = chan_modes.map(mode => {
|
|
if (typeof mode === 'string' && !mode.startsWith('+')) {
|
|
return '+' + mode;
|
|
}
|
|
return mode;
|
|
});
|
|
chan_modes.forEach(m => {
|
|
socket.write(`:${this.servername} 324 ${socket.nickname} ${channel} ${m}\r\n`);
|
|
});
|
|
socket.write(`:${this.servername} 329 ${socket.nickname} ${channel} ${this.channeltimestamps.get(channel) || Date.now()}\r\n`);
|
|
break;
|
|
} else {
|
|
this.processChannelModeBatch(socket.nickname, channel, mode, params.slice(2));
|
|
break;
|
|
}
|
|
case 'NICK':
|
|
var new_nickname = params[0];
|
|
if (!new_nickname || new_nickname.length < 1) {
|
|
socket.write(`:${this.servername} 431 * :No nickname\r\n`);
|
|
break;
|
|
}
|
|
if (new_nickname.length > this.nicklen) {
|
|
socket.write(`:${this.servername} 432 * ${new_nickname} :Erroneus nickname\r\n`);
|
|
break;
|
|
}
|
|
var result = Array.from(this.nicknames.values()).find(nick => nick === new_nickname);
|
|
if (result) {
|
|
socket.write(`:${this.servername} 433 * ${new_nickname} :Nickname is already in use\r\n`);
|
|
break;
|
|
}
|
|
for (const prefix of this.channelprefixes) {
|
|
if (new_nickname.startsWith(prefix)) {
|
|
socket.write(`:${this.servername} 432 * ${new_nickname} :Erroneus nickname\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
for (let i = 0; i < new_nickname.length; i++) {
|
|
if (!this.allowed_characters.includes(new_nickname[i])) {
|
|
socket.write(`:${this.servername} 432 * ${new_nickname} :Erroneus nickname\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
if (!socket.nickname) {
|
|
// If no nickname is set, set it now
|
|
socket.nickname = new_nickname;
|
|
}
|
|
this.nicknames.set(socket, socket.nickname);
|
|
if (socket.nickname && this.usernames.has(socket.nickname)) {
|
|
this.usernames.delete(socket.nickname);
|
|
}
|
|
this.usernames.set(socket.nickname, socket.username);
|
|
if (socket.nickname && socket.nickname !== new_nickname) {
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} NICK :${new_nickname}\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} NICK :${new_nickname}\r\n`, socket);
|
|
socket.nickname = new_nickname;
|
|
this.nicknames.set(socket, socket.nickname);
|
|
// Update nickname in all channels
|
|
for (const [ch, users] of this.channels.entries()) {
|
|
if (users.has(socket.nickname)) {
|
|
users.delete(socket.nickname);
|
|
users.add(new_nickname);
|
|
}
|
|
}
|
|
// Update away message mapping if present
|
|
if (this.awaymsgs.has(socket.nickname)) {
|
|
const msg = this.awaymsgs.get(socket.nickname);
|
|
this.awaymsgs.delete(socket.nickname);
|
|
this.awaymsgs.set(new_nickname, msg);
|
|
}
|
|
// Update user timestamp
|
|
if (this.usertimestamps.has(socket.nickname)) {
|
|
this.usertimestamps.delete(socket.nickname);
|
|
}
|
|
this.usertimestamps.set(new_nickname, Date.now());
|
|
if (this.usersignontimestamps.has(socket.nickname)) {
|
|
this.usersignontimestamps.delete(socket.nickname);
|
|
}
|
|
this.usersignontimestamps.set(new_nickname, socket.timestamp);
|
|
}
|
|
if (!socket.registered && socket.nickname && socket.username) {
|
|
socket.registered = true;
|
|
this.usertimestamps.set(socket.nickname, Date.now());
|
|
this.usersignontimestamps.set(new_nickname, socket.timestamp);
|
|
this.doLogin(socket.nickname, socket);
|
|
}
|
|
break;
|
|
case 'USER':
|
|
socket.username = params[0];
|
|
if (!socket.registered && socket.nickname && socket.username) {
|
|
socket.registered = true;
|
|
this.usernames.set(socket.nickname, socket.username);
|
|
this.usertimestamps.set(socket.nickname, Date.now());
|
|
this.usersignontimestamps.set(socket.nickname, socket.timestamp);
|
|
this.doLogin(socket.nickname, socket);
|
|
}
|
|
break;
|
|
case 'JOIN':
|
|
var key = null;
|
|
if (!socket.registered) {
|
|
socket.write(`:irc.local 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (params.length == 2) {
|
|
key = params[1];
|
|
}
|
|
for (let i = 0; i < channel.length; i++) {
|
|
if (i == 0 && !this.channelprefixes.includes(channel[i])) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
return;
|
|
}
|
|
if (i == 0) {
|
|
continue;
|
|
}
|
|
if (!this.allowed_characters.includes(channel[i])) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
if (channel.includes(',')) {
|
|
var channels = channel.split(',');
|
|
} else {
|
|
var channels = [channel];
|
|
}
|
|
for (const ch of channels) {
|
|
var joinLine = '';
|
|
if (key) {
|
|
joinLine = `JOIN ${ch} ${key}`;
|
|
} else {
|
|
joinLine = `JOIN ${ch}`;
|
|
}
|
|
// Simulate a JOIN command for each channel
|
|
if (this.getChannelCount(socket.nickname) >= this.channellimit) {
|
|
socket.write(`:${this.servername} 405 ${socket.nickname} ${ch} :Too many channels\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
const [command, ...params] = joinLine.trim().split(' ');
|
|
var validChannel = false;
|
|
this.channelprefixes.forEach(prefix => {
|
|
if (ch.startsWith(prefix)) {
|
|
validChannel = true;
|
|
}
|
|
});
|
|
if (!validChannel) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${ch} :No such channel\r\n`);
|
|
continue; // Skip this channel
|
|
}
|
|
if (ch.length < 2 || ch.length > this.channellen) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${ch} :No such channel\r\n`);
|
|
continue; // Skip this channel
|
|
}
|
|
if (!this.channels.has(ch)) {
|
|
this.createChannel(ch, socket.nickname);
|
|
}
|
|
if (this.channelbans.has(ch)) {
|
|
if (this.isBanned(ch, socket)) {
|
|
socket.write(`:${this.servername} 474 ${socket.nickname} ${ch} :Cannot join channel (+b)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (this.channelmodes.has(ch)) {
|
|
const modes = this.channelmodes.get(ch);
|
|
if (!modes || modes === true) {
|
|
continue; // Skip if no modes are set
|
|
}
|
|
// Check if the user is in too many channels
|
|
const keyMode = modes.find(m => typeof m === 'string' && m.startsWith('k '));
|
|
if (keyMode) {
|
|
const channelKey = keyMode.split(' ')[1];
|
|
// The key must be provided as the second parameter in the JOIN command
|
|
// params[1] is the key for the first channel, params[2] for the second, etc.
|
|
// For simplicity, assume only one channel per JOIN or the key is always params[1]
|
|
const providedKey = params[1];
|
|
if (!providedKey || providedKey !== channelKey) {
|
|
socket.write(`:${this.servername} 475 ${socket.nickname} ${ch} :Cannot join channel (+k)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (this.channelmodes.has(ch) && this.channelmodes.get(ch).includes('i')) {
|
|
// Channel is invite-only (+i)
|
|
// For simplicity, let's assume you have an invited list per channel (not implemented yet)
|
|
// We'll use a Map: this.channelinvites = new Map(); // channel -> Set of invited nicks
|
|
if (!this.channelinvites) this.channelinvites = new Map();
|
|
const invited = this.channelinvites.get(ch) || new Set();
|
|
let isInvited = false;
|
|
for (const inviteMask of invited) {
|
|
isInvited = checkMask(inviteMask, socket);
|
|
if (isInvited) {
|
|
break; // Stop checking if we found a match
|
|
}
|
|
}
|
|
if (!invited.has(socket.nickname) && !isInvited) {
|
|
socket.write(`:${this.servername} 473 ${socket.nickname} ${ch} :Cannot join channel (+i)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
if (!isInvited) {
|
|
invited.delete(socket.nickname);
|
|
}
|
|
this.channelinvites.set(ch, invited);
|
|
}
|
|
if (this.channelmodes.has(ch) && this.channelmodes.get(ch).includes('z')) {
|
|
// Channel is restricted to users with a secure connection (+z)
|
|
if (!socket.secure) {
|
|
socket.write(`:${this.servername} 474 ${socket.nickname} ${ch} :Cannot join channel (+z)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
}
|
|
// Check if the channel user limit has been reached
|
|
if (this.channelmodes.has(ch) && this.channelmodes.get(ch).includes('l')) {
|
|
const limitMatch = this.channelmodes.get(ch).match(/l(\d+)/);
|
|
if (limitMatch) {
|
|
const limit = parseInt(limitMatch[1], 10);
|
|
if (this.channels.has(ch) && this.channels.get(ch).size >= limit) {
|
|
socket.write(`:${this.servername} 471 ${socket.nickname} ${ch} :Cannot join channel (+l)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
}
|
|
// If we reach here, the user can join the channel
|
|
// Reuse the JOIN logic for each channel
|
|
// Only run the code after $PLACEHOLDER$ for each channel
|
|
// (excluding the code before $PLACEHOLDER$ to avoid duplicate checks)
|
|
// You can refactor this logic into a helper if needed
|
|
this.usertimestamps.set(socket.nickname, Date.now());
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} JOIN ${ch}\r\n`);
|
|
if (!this.channels.has(ch)) {
|
|
this.channels.set(ch, new Set());
|
|
}
|
|
this.channels.get(ch).add(socket.nickname);
|
|
if (!this.channelops.has(ch) || this.channelops.get(ch) === true) {
|
|
this.channelops.set(ch, new Set());
|
|
this.channelops.get(ch).add(socket.nickname);
|
|
}
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} JOIN ${ch}\r\n`, socket);
|
|
if (this.channeltopics.has(ch)) {
|
|
const topic = this.channeltopics.get(ch);
|
|
socket.write(`:${this.servername} 332 ${socket.nickname} ${ch} :${topic}\r\n`);
|
|
} else {
|
|
socket.write(`:${this.servername} 331 ${socket.nickname} ${ch} :No topic is set\r\n`);
|
|
}
|
|
var users = this.getUsersInChannel(ch);
|
|
if (users.length > 0) {
|
|
socket.write(`:${this.servername} 353 ${socket.nickname} = ${ch} :${users.join(' ')}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 366 ${socket.nickname} ${ch} :End of /NAMES list\r\n`);
|
|
}
|
|
break;
|
|
case 'NAMES':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
socket.write(`:${this.servername} 461 ${socket.nickname} NAMES :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (!this.channels.has(channel)) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var users = this.getUsersInChannel(channel);
|
|
if (users.length > 0) {
|
|
socket.write(`:${this.servername} 353 ${socket.nickname} = ${channel} :${users.join(' ')}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 366 ${socket.nickname} ${channel} :End of /NAMES list\r\n`);
|
|
break;
|
|
case 'PART':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (!this.channels.has(channel) || !this.channels.get(channel).has(socket.nickname)) {
|
|
socket.write(`:${this.servername} 442 ${socket.nickname} ${channel} :You're not on that channel\r\n`);
|
|
break;
|
|
}
|
|
this.usertimestamps.set(socket.nickname, Date.now());
|
|
if (params.length == 2) {
|
|
let reason = params.join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} PART ${channel} :${reason}\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} PART ${channel} :${reason}\r\n`, socket);
|
|
} else {
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} PART ${channel}\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} PART ${channel}\r\n`, socket);
|
|
}
|
|
if (this.channels.has(channel)) {
|
|
this.channels.get(channel).delete(socket.nickname);
|
|
if (this.channels.get(channel).size === 0) {
|
|
this.deleteChannel(channel);
|
|
}
|
|
}
|
|
break;
|
|
case 'INVITE':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${socket.nickname} INVITE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const invitee = params[0];
|
|
channel = params[1];
|
|
if (!this.channels.has(channel)) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${socket.socket.nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(socket.nickname)) {
|
|
socket.write(`:${this.servername} 482 ${socket.nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (!this.nicknames.has(socket)) {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${invitee} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
const inviteeSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === invitee);
|
|
if (!inviteeSocket) {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${invitee} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channels.has(channel) || !this.channels.get(channel).has(invitee)) {
|
|
if (!this.channelinvites) this.channelinvites = new Map();
|
|
const invited = this.channelinvites.get(channel) || new Set();
|
|
invited.add(invitee);
|
|
this.channelinvites.set(channel, invited);
|
|
socket.write(`:${this.servername} 341 ${socket.socket.nickname} ${invitee} ${channel} :Invited to channel\r\n`);
|
|
inviteeSocket.write(`:${this.servername} 341 ${nickname} ${invitee} ${channel} :You have been invited to join ${channel}\r\n`);
|
|
break;
|
|
} else {
|
|
socket.write(`:${this.servername} 443 ${socket.nickname} ${invitee} ${channel} :${invitee} is already on that channel\r\n`);
|
|
break;
|
|
}
|
|
case 'LIST':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
let channelsToList;
|
|
if (params.length > 0 && params[0]) {
|
|
channelsToList = params[0].split(',').filter(ch => ch.length > 0);
|
|
} else {
|
|
channelsToList = Array.from(this.channels.keys());
|
|
}
|
|
socket.write(`:${this.servername} 321 ${socket.nickname} :Channel :Users :Topic\r\n`);
|
|
for (const channel of channelsToList) {
|
|
if (!this.channelprefixes.some(prefix => channel.startsWith(prefix))) {
|
|
continue; // Skip invalid channel names
|
|
}
|
|
if (this.channelmodes.has(channel)) {
|
|
var modes = this.channelmodes.get(channel);
|
|
if (modes === true) {
|
|
modes = [];
|
|
}
|
|
if (modes.includes('p')) {
|
|
if (!this.channels.has(channel) || !this.channels.get(channel).has(socket.nickname)) {
|
|
continue; // Skip if user is not in the channel
|
|
}
|
|
}
|
|
if (modes.includes('s')) {
|
|
if (!this.channels.has(channel) || !this.channels.get(channel).has(socket.nickname)) {
|
|
continue; // Skip if user is not in the channel
|
|
}
|
|
}
|
|
}
|
|
const users = this.getUsersInChannel(channel);
|
|
const topic = this.channeltopics.get(channel) || 'No topic is set';
|
|
socket.write(`:${this.servername} 322 ${socket.nickname} ${channel} ${users.length} :${topic}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 323 ${socket.nickname} :End of /LIST\r\n`);
|
|
break;
|
|
case 'WHO':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (!params[0]) {
|
|
socket.write(`:${this.servername} 461 ${socket.nickname} WHO :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const target = params[0];
|
|
if (target.startsWith('#')) {
|
|
// WHO for channel
|
|
if (this.channelmodes.has(target)) {
|
|
const modes = this.channelmodes.get(target);
|
|
if ((modes.includes('p') || modes.includes('s')) && (!this.channels.has(target) || !this.channels.get(target).has(socket.nickname))) {
|
|
socket.write(`:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (this.channels.has(target)) {
|
|
const users = this.getUsersInChannel(target);
|
|
for (const user of users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock) {
|
|
socket.write(`:${this.servername} 352 ${socket.nickname} * ${user} ${sock.host} ${this.servername} ${user} H :0 ${user}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
} else {
|
|
// WHO for nickname
|
|
let found = false;
|
|
for (const [sock, nick] of this.nicknames.entries()) {
|
|
if (nick === target) {
|
|
found = true;
|
|
socket.write(`:${this.servername} 352 ${socket.nickname} * ${nick} ${sock.host} ${this.servername} ${nick} H :0 ${nick}\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${target} :No such nick/channel\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
break;
|
|
}
|
|
break;
|
|
case 'PRIVMSG':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
this.usertimestamps.set(socket.nickname, Date.now());
|
|
if (params[0]) {
|
|
const target = params[0];
|
|
let targets = target.includes(',') ? target.split(',') : [target];
|
|
if (targets.length > this.maxtargets) {
|
|
socket.write(`:${this.servername} 407 ${socket.nickname} :Too many targets. Maximum allowed is ${this.maxtargets}\r\n`);
|
|
return;
|
|
}
|
|
for (const t of targets) {
|
|
let isChan = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (t.startsWith(prefix)) {
|
|
isChan = true;
|
|
break;
|
|
}
|
|
}
|
|
if (isChan) {
|
|
// Channel message
|
|
if (this.channelmodes.has(t) && this.channelmodes.get(t).includes('m')) {
|
|
// Channel is moderated (+m)
|
|
var voices = this.channelvoices.get(t) || new Set();
|
|
var ops = this.channelops.get(t) || new Set();
|
|
if (voices === true) voices = new Set();
|
|
if (ops === true) ops = new Set();
|
|
if (!(voices.has(socket.nickname) || ops.has(socket.nickname))) {
|
|
socket.write(`:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+m)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (this.channelmodes.has(t) && this.channelmodes.get(t).includes('n')) {
|
|
// Channel is no-external-messages (+n)
|
|
if (!this.channels.has(t) || !this.channels.get(t).has(socket.nickname)) {
|
|
socket.write(`:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+n)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
const msg = line.slice(line.indexOf(':', 1) + 1);
|
|
if (isChan) {
|
|
if (!this.channels.has(t)) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${t} :No such channel\r\n`);
|
|
continue;
|
|
}
|
|
this.broadcastChannel(t, `:${socket.nickname}!${socket.username}@${socket.host} PRIVMSG ${t} :${msg}\r\n`, socket);
|
|
} else {
|
|
if (this.awaymsgs.has(t)) {
|
|
socket.write(`:${this.servername} 301 ${socket.nickname} ${t} :${this.awaymsgs.get(t)}\r\n`);
|
|
}
|
|
var targetSock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === t);
|
|
if (!targetSock) {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${t} :No such nick/channel\r\n`);
|
|
continue;
|
|
}
|
|
var targetUserModes = this.usermodes.get(t) || [];
|
|
if (targetUserModes.includes('Z') && !socket.secure) {
|
|
socket.write(`:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to user (+Z)\r\n`);
|
|
continue;
|
|
}
|
|
var usermodes = this.usermodes.get(socket.nickname);
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
if (usermodes.includes('Z') && !targetUserModes.includes('Z')) {
|
|
socket.write(`:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to non-+Z user while you are +Z\r\n`);
|
|
continue;
|
|
}
|
|
targetSock.write(`:${socket.nickname}!${socket.username}@${socket.host} PRIVMSG ${t} :${msg}\r\n`);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
break;
|
|
case 'NOTICE':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
this.usertimestamps.set(socket.nickname, Date.now());
|
|
if (params[0]) {
|
|
const target = params[0];
|
|
let targets = target.includes(',') ? target.split(',') : [target];
|
|
if (targets.length > this.maxtargets) {
|
|
socket.write(`:${this.servername} 407 ${socket.nickname} :Too many targets. Maximum allowed is ${this.maxtargets}\r\n`);
|
|
return;
|
|
}
|
|
for (const t of targets) {
|
|
let isChan = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (t.startsWith(prefix)) {
|
|
isChan = true;
|
|
break;
|
|
}
|
|
}
|
|
if (isChan) {
|
|
// Channel notice
|
|
if (this.channelmodes.has(t) && this.channelmodes.get(t).includes('n')) {
|
|
// Channel is no-external-messages (+n)
|
|
if (!this.channels.has(t) || !this.channels.get(t).has(socket.nickname)) {
|
|
socket.write(`:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+n)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (!this.channels.has(t)) {
|
|
socket.write(`:${this.servername} 403 ${socket.nickname} ${t} :No such channel\r\n`);
|
|
continue;
|
|
}
|
|
this.broadcastChannel(t, `:${socket.nickname}!${socket.username}@${socket.host} NOTICE ${t} :${msg}\r\n`, socket);
|
|
} else {
|
|
// Assume it's a nick, check if it exists
|
|
var targetSock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === t);
|
|
if (!targetSock) {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${t} :No such nick/channel\r\n`);
|
|
continue;
|
|
}
|
|
var targetUserModes = this.usermodes.get(t) || [];
|
|
if (targetUserModes.includes('Z') && !socket.secure) {
|
|
socket.write(`:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to user (+Z)\r\n`);
|
|
continue;
|
|
}
|
|
var usermodes = this.usermodes.get(socket.nickname);
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
if (usermodes.includes('Z') && !targetUserModes.includes('Z')) {
|
|
socket.write(`:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to non-+Z user while you are +Z\r\n`);
|
|
continue;
|
|
}
|
|
targetSock.write(`:${socket.nickname}!${socket.username}@${socket.host} NOTICE ${t} :${msg}\r\n`);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
break;
|
|
case 'PING':
|
|
socket.write(`PONG ${params.join(' ')}\r\n`);
|
|
break;
|
|
case 'WHOIS':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
socket.write(`:${this.servername} 461 ${socket.nickname} WHOIS :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const whoisNick = params[0];
|
|
const whoisSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === whoisNick);
|
|
if (whoisSocket) {
|
|
const whois_username = this.usernames.get(whoisNick);
|
|
socket.write(`:${this.servername} 311 ${socket.nickname} ${whoisNick} ${whois_username} ${this.filterHostname(whoisSocket, whoisSocket.realhost)} * ${whoisNick}\r\n`);
|
|
if (this.awaymsgs.has(whoisNick)) {
|
|
socket.write(`:${this.servername} 301 ${socket.nickname} ${whoisNick} :${this.awaymsgs.get(whoisNick)}\r\n`);
|
|
}
|
|
const userChannels = [];
|
|
for (const [ch, users] of this.channels.entries()) {
|
|
if (users.has(whoisNick)) {
|
|
let prefix = '';
|
|
var chanops = this.channelops.get(ch) || new Set();
|
|
var chanvoices = this.channelvoices.get(ch) || new Set();
|
|
const modes = this.channelmodes.get(ch) || [];
|
|
if ((modes.includes('p') || modes.includes('s')) && (!this.channels.has(ch) || !this.channels.get(ch).has(socket.nickname))) {
|
|
continue; // Skip listing this channel if it's private/secret and user is not in it
|
|
}
|
|
if (chanops.has(whoisNick)) {
|
|
prefix = '@';
|
|
} else if (chanvoices.has(whoisNick)) {
|
|
prefix = '+';
|
|
}
|
|
userChannels.push(prefix + ch);
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 312 ${socket.nickname} ${whoisNick} ${this.servername} :minisrv-${this.minisrv_config.version}\r\n`);
|
|
if (this.isIRCOp(whoisNick)) {
|
|
socket.write(`:${this.servername} 313 ${socket.nickname} ${whoisNick} :is an IRC operator\r\n`);
|
|
}
|
|
usermodes = this.usermodes.get(whoisNick) || [];
|
|
if (usermodes && usermodes.includes('s')) {
|
|
socket.write(`:${this.servername} 671 ${socket.nickname} ${whoisNick} :is using a secure connection\r\n`);
|
|
}
|
|
var now = Date.now();
|
|
var userTimestamp = this.usertimestamps.get(whoisNick) || now;
|
|
var idleTime = Math.floor((now - userTimestamp) / 1000);
|
|
socket.write(`:${this.servername} 317 ${socket.nickname} ${whoisNick} ${idleTime} :seconds idle\r\n`);
|
|
if (userChannels.length > 0) {
|
|
socket.write(`:${this.servername} 319 ${socket.nickname} ${whoisNick} :${userChannels.join(' ')}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 318 ${socket.nickname} ${whoisNick} :End of /WHOIS list\r\n`);
|
|
} else {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${whoisNick} :No such nick/channel\r\n`);
|
|
}
|
|
break;
|
|
case 'KILL':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
socket.write(`:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${socket.nickname} KILL :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const target_nick = params[0];
|
|
const killReason = params.slice(1).join(' ');
|
|
let cleanKillReason = killReason;
|
|
if (cleanKillReason.startsWith(':')) {
|
|
cleanKillReason = cleanKillReason.slice(1);
|
|
}
|
|
var targetSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === target_nick);
|
|
if (!targetSocket) {
|
|
socket.write(`:${this.servername} 401 ${socket.nickname} ${target_nick} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
|
|
// Broadcast the KILL message to all users
|
|
this.broadcastUser(target_nick, `:${socket.nickname}!${socket.username}@${socket.host} KILL ${target_nick} :${cleanKillReason}\r\n`);
|
|
this.terminateSession(targetSocket, true);
|
|
break;
|
|
case 'QUIT':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
} else {
|
|
if (params.length > 0) {
|
|
let reason = params.join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} QUIT :${reason}\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} QUIT :${reason}\r\n`, socket);
|
|
} else {
|
|
socket.write(`:${socket.nickname}!${socket.username}@${socket.host} QUIT\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} QUIT\r\n`, socket);
|
|
}
|
|
}
|
|
this.terminateSession(socket, true);
|
|
break;
|
|
case 'MOTD':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
this.doMOTD(socket.nickname, socket);
|
|
break;
|
|
case 'VERSION':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
socket.write(`:${this.servername} 351 ${socket.nickname} ${this.servername} minisrv ${this.minisrv_config.version} :minisrv IRC server\r\n`);
|
|
break;
|
|
case 'WALLOPS':
|
|
if (!socket.registered) {
|
|
socket.write(`:${this.servername} 451 ${socket.nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
socket.write(`:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
socket.write(`:${this.servername} 461 ${socket.nickname} WALLOPS :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var wallopsMessage = params.join(' ');
|
|
if (wallopsMessage.startsWith(':')) {
|
|
wallopsMessage = wallopsMessage.slice(1);
|
|
}
|
|
this.broadcastWallops(`:${socket.nickname}!${socket.username}@${socket.host} WALLOPS :${wallopsMessage}\r\n`);
|
|
default:
|
|
// Ignore unknown commands
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
deleteChannel(channel) {
|
|
this.channels.delete(channel);
|
|
this.channelops.delete(channel);
|
|
this.channelvoices.delete(channel);
|
|
this.channeltopics.delete(channel);
|
|
this.channelbans.delete(channel);
|
|
this.channelexemptions.delete(channel);
|
|
this.channelinvites.delete(channel);
|
|
this.channelmodes.delete(channel);
|
|
this.channeltimestamps.delete(channel);
|
|
if (this.debug) {
|
|
console.log(`Channel ${channel} deleted`);
|
|
}
|
|
}
|
|
|
|
terminateSession(socket, close = false) {
|
|
const nickname = this.nicknames.get(socket);
|
|
if (nickname) {
|
|
this.usertimestamps.delete(nickname);
|
|
this.usersignontimestamps.delete(nickname);
|
|
this.usernames.delete(nickname);
|
|
this.usermodes.delete(nickname);
|
|
this.awaymsgs.delete(nickname);
|
|
for (const [ch, ops] of this.channelops.entries()) {
|
|
if (ops && ops !== true && ops.has(nickname)) {
|
|
ops.delete(nickname);
|
|
}
|
|
}
|
|
for (const [ch, voices] of this.channelvoices.entries()) {
|
|
if (voices && voices !== true && voices.has(nickname)) {
|
|
voices.delete(nickname);
|
|
}
|
|
}
|
|
// Remove user from any pending invites
|
|
for (const [ch, invites] of (this.channelinvites || new Map()).entries()) {
|
|
if (invites && invites.has(nickname)) {
|
|
invites.delete(nickname);
|
|
}
|
|
}
|
|
this.channels.forEach((users, ch) => {
|
|
if (users.has(nickname)) {
|
|
users.delete(nickname);
|
|
if (users.size === 0) {
|
|
this.deleteChannel(ch);
|
|
}
|
|
}
|
|
});
|
|
this.nicknames.delete(socket);
|
|
}
|
|
this.clients = this.clients.filter(c => c !== socket);
|
|
if (close) {
|
|
socket.end();
|
|
}
|
|
}
|
|
|
|
sendWebTVNotice(message) {
|
|
this.broadcast(`:${this.servername} NOTICE * :${message}\r\n`);
|
|
}
|
|
|
|
sendWebTVNoticeTo(username, message) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === username);
|
|
if (socket) {
|
|
socket.write(`:${this.servername} NOTICE * :${message}\r\n`);
|
|
}
|
|
}
|
|
|
|
sendToChannelAs(username, channel, message) {
|
|
const users = this.getUsersInChannel(channel);
|
|
for (const user of users) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (socket) {
|
|
socket.write(`:${username}!${username}@${this.servername} PRIVMSG ${channel} :${message}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
|
|
getChannelCount(username) {
|
|
// returns the number of channels a user is in
|
|
let count = 0;
|
|
for (const [channel, users] of this.channels.entries()) {
|
|
if (users.has(username)) {
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
getUsersInChannel(channel) {
|
|
if (this.channels.has(channel)) {
|
|
const ops = this.channelops.get(channel) || new Set();
|
|
const voices = this.channelvoices.get(channel) || new Set();
|
|
return Array.from(this.channels.get(channel)).map(user => {
|
|
if (ops === true) return user;
|
|
if (voices === true) return user;
|
|
if (ops.has(user)) return '@' + user;
|
|
if (voices.has(user)) return '+' + user;
|
|
return user;
|
|
});
|
|
}
|
|
return [];
|
|
}
|
|
|
|
broadcastUser(username, message, exceptSocket = null) {
|
|
for (const [channel, users] of this.channels.entries()) {
|
|
if (users.has(username)) {
|
|
for (const user of users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastChannel(channel, message, exceptSocket = null) {
|
|
if (this.channels.has(channel)) {
|
|
const users = this.channels.get(channel);
|
|
for (const user of users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastWallops(message) {
|
|
for (const [socket, nickname] of this.nicknames.entries()) {
|
|
const usermodes = this.usermodes.get(nickname) || [];
|
|
if (usermodes.includes('w') || usermodes.includes('o')) {
|
|
socket.write(message);
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcast(message, exceptSocket = null) {
|
|
for (const client of this.clients) {
|
|
if (client !== exceptSocket) {
|
|
client.write(message);
|
|
}
|
|
}
|
|
}
|
|
|
|
isIRCOp(nickname) {
|
|
// Check if the user is an IRC operator
|
|
if (!this.usermodes.has(nickname)) return false;
|
|
const modes = this.usermodes.get(nickname);
|
|
if (Array.isArray(modes)) {
|
|
return modes.includes('o');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
createChannel(channel, creator) {
|
|
if (!this.channels.has(channel)) {
|
|
this.channels.set(channel, new Set());
|
|
this.channelops.set(channel, new Set([creator]));
|
|
this.channelvoices.set(channel, new Set());
|
|
this.channeltopics.set(channel, 'No topic set');
|
|
this.channelbans.set(channel, new Set());
|
|
this.channelexemptions.set(channel, new Set());
|
|
this.channelinvites.set(channel, new Set());
|
|
this.channelmodes.set(channel, this.default_channel_modes.slice());
|
|
this.channeltimestamps.set(channel, Math.floor(Date.now() / 1000));
|
|
}
|
|
}
|
|
|
|
checkMask(mask, socket) {
|
|
const username = this.nicknames.get(socket);
|
|
if (!username) return false;
|
|
console.log
|
|
const userIdent = this.usernames.get(username) || username;
|
|
const host = socket.host
|
|
const realhost = socket.realhost
|
|
const fullMask = `${username}!${userIdent}@${host}`;
|
|
const fullMask2 = `${username}!${userIdent}@${realhost}`;
|
|
|
|
// If mask does not contain '!', treat as nickname or username only
|
|
if (!mask.includes('!')) {
|
|
// Wildcard match for just the nickname or username
|
|
// Try matching against both nickname and username
|
|
const maskRegex = new RegExp('^' + mask.replace(/\*/g, '.*').replace(/\?/g, '.') + '$', 'i');
|
|
return maskRegex.test(username) || maskRegex.test(userIdent);
|
|
}
|
|
|
|
// If mask contains '!', match against full mask (nick!user@host)
|
|
// Split mask into nick, user, host
|
|
const [maskNick, rest] = mask.split('!', 2);
|
|
const [maskUser, maskHost] = (rest || '').split('@', 2);
|
|
|
|
// Split fullMask into nick, user, host
|
|
const [fullNick, fullRest] = fullMask.split('!', 2);
|
|
const [fullUser, fullHost] = (fullRest || '').split('@', 2);
|
|
|
|
// Build regex for each part, defaulting to '*' if missing
|
|
const nickRegex = new RegExp('^' + (maskNick || '*').replace(/\*/g, '.*').replace(/\?/g, '.') + '$', 'i');
|
|
const userRegex = new RegExp('^' + (maskUser || '*').replace(/\*/g, '.*').replace(/\?/g, '.') + '$', 'i');
|
|
const hostRegex = new RegExp('^' + (maskHost || '*').replace(/\*/g, '.*').replace(/\?/g, '.') + '$', 'i');
|
|
var matches = nickRegex.test(fullNick) && userRegex.test(fullUser) && hostRegex.test(fullHost);
|
|
if (!matches && fullMask2) {
|
|
// Try matching against the real host if available
|
|
const [fullNick2, fullRest2] = fullMask2.split('!', 2);
|
|
const [fullUser2, fullHost2] = (fullRest2 || '').split('@', 2);
|
|
matches = nickRegex.test(fullNick2) && userRegex.test(fullUser2) && hostRegex.test(fullHost2);
|
|
}
|
|
return matches;
|
|
}
|
|
|
|
getHostname(socket, callback) {
|
|
if (socket && socket.remoteAddress) {
|
|
try {
|
|
dns.reverse(socket.remoteAddress, (err, hostnames) => {
|
|
if (!err && hostnames && hostnames.length > 0) {
|
|
callback(hostnames[0]);
|
|
} else if (this.debug) {
|
|
console.error(`DNS reverse lookup failed for ${socket.remoteAddress}:`, err);
|
|
callback(socket.remoteAddress);
|
|
}
|
|
});
|
|
} catch (e) {
|
|
if (this.debug) {
|
|
console.error(`Error resolving hostname for ${socket.remoteAddress}:`, e);
|
|
}
|
|
callback(socket.remoteAddress);
|
|
}
|
|
}
|
|
}
|
|
|
|
filterHostname(socket, hostname) {
|
|
const username = this.nicknames.get(socket);
|
|
var modes = null;
|
|
if (username) {
|
|
modes = this.usermodes.get(username);
|
|
}
|
|
if (modes) {
|
|
if (Array.isArray(modes) && modes.includes('x')) {
|
|
// Masked hostname for +x users
|
|
if (typeof hostname === 'string') {
|
|
// Mask everything except the first and last octet for IPv4
|
|
const ipv4Match = hostname.match(/^(\d+)\.(\d+)\.(\d+)\.(\d+)$/);
|
|
if (ipv4Match) {
|
|
return `${ipv4Match[1]}.x.x.${ipv4Match[4]}`;
|
|
}
|
|
// For hostnames, mask all but the first and last label
|
|
const parts = hostname.split('.');
|
|
if (parts.length > 2) {
|
|
return `${parts[0]}.x.${parts[parts.length - 1]}`;
|
|
}
|
|
// Otherwise, just return 'hidden.host'
|
|
return 'hidden.host';
|
|
}
|
|
}
|
|
}
|
|
return hostname;
|
|
}
|
|
|
|
isBanned(channel, socket) {
|
|
const nickname = this.nicknames.get(socket);
|
|
if (this.channelbans.has(channel)) {
|
|
const bans = this.channelbans.get(channel);
|
|
// Check if the user's mask matches any ban mask
|
|
let isUserBanned = false;
|
|
for (const banMask of bans) {
|
|
isUserBanned = this.checkMask(banMask, socket);
|
|
if (isUserBanned) {
|
|
if (this.channelexemptions.has(channel)) {
|
|
const exemptions = this.channelexemptions.get(channel);
|
|
for (const exemptMask of exemptions) {
|
|
isUserBanned = !this.checkMask(exemptMask, socket);
|
|
if (!isUserBanned) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return isUserBanned;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
findSocketByUniqueId(uniqueId) {
|
|
for (const [socket, nickname] of this.nicknames.entries()) {
|
|
if (socket.uniqueId === uniqueId) {
|
|
return socket;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
getSocketUniqueId(socket) {
|
|
return socket.uniqueId;
|
|
}
|
|
|
|
// Enhanced MODE command: support multiple mode flags and parameters in a single command
|
|
// Example: /mode #chan +mik password
|
|
// This method parses and applies multiple channel mode changes in one call.
|
|
processChannelModeBatch(nickname, channel, modeString, params) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === nickname);
|
|
|
|
|
|
// Parse mode string and parameters
|
|
let adding = true;
|
|
let paramIndex = 0;
|
|
let modeChanges = [];
|
|
let modeFlags = modeString.replace(/^:/, '').split('');
|
|
let paramModes = {
|
|
'k': true, // key
|
|
'l': true, // limit
|
|
'b': true, // ban
|
|
'e': true, // exception
|
|
'I': true, // invite-exception
|
|
'o': true, // op
|
|
'v': true // voice
|
|
};
|
|
for (let i = 0; i < modeFlags.length; i++) {
|
|
let c = modeFlags[i];
|
|
// If the mode is 'b', 'e', or 'I', allow it with or without a param
|
|
if ((c === 'b' || c === 'e' || c === 'I') && paramIndex >= params.length) {
|
|
this.processChannelModeCommand(nickname, channel, c, null);
|
|
return;
|
|
}
|
|
if (c === '+') {
|
|
adding = true;
|
|
} else if (c === '-') {
|
|
adding = false;
|
|
} else {
|
|
let param = null;
|
|
if (paramModes[c]) {
|
|
// Only consume a param if available
|
|
if (paramIndex < params.length) {
|
|
param = params[paramIndex++];
|
|
}
|
|
}
|
|
modeChanges.push({ adding, mode: c, param });
|
|
}
|
|
}
|
|
|
|
// Allow IRCop to set channel modes, or require channel operator
|
|
if (
|
|
!this.isIRCOp(nickname) &&
|
|
(
|
|
!this.channelops.has(channel) ||
|
|
this.channelops.get(channel) === true ||
|
|
!this.channelops.get(channel).has(nickname)
|
|
)
|
|
) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
return;
|
|
}
|
|
// Now apply each mode change
|
|
for (const change of modeChanges) {
|
|
let modeFlag = (change.adding ? '+' : '-') + change.mode;
|
|
let modeParam = change.param ? [null, null, change.param] : [];
|
|
// Use the existing single-mode handler for each
|
|
this.processChannelModeCommand(nickname, channel, modeFlag, modeParam);
|
|
}
|
|
}
|
|
|
|
processChannelModeCommand(nickname, channel, mode, params) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === nickname);
|
|
const username = this.usernames.get(nickname);
|
|
if (mode.startsWith('+m')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
if (!chan_modes.includes('m')) {
|
|
this.channelmodes.set(channel, [...chan_modes, 'm']);
|
|
}
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +m\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-m')) {
|
|
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 'm'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -m\r\n`);
|
|
return;
|
|
} else if (mode.startsWith("+I")) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const inviteMask = params[2];
|
|
if (!inviteMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
if (!this.inviteexceptions.has(channel)) {
|
|
this.inviteexceptions.set(channel, new Set());
|
|
}
|
|
if (this.inviteexceptions.get(channel).length >= this.maxinvite) {
|
|
socket.write(`:${this.servername} 478 ${nickname} ${channel} :Too many invite exceptions\r\n`);
|
|
return;
|
|
}
|
|
this.inviteexceptions.get(channel).add(inviteMask);
|
|
socket.write(`:${this.servername} 346 ${nickname} ${channel} ${inviteMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +I ${inviteMask}\r\n`, socket);
|
|
return;
|
|
} else if (mode.startsWith("-I")) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const inviteMask = params[2];
|
|
if (!inviteMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
if (this.inviteexceptions.has(channel)) {
|
|
this.inviteexceptions.get(channel).delete(inviteMask);
|
|
socket.write(`:${this.servername} 347 ${nickname} ${channel} ${inviteMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -I ${inviteMask}\r\n`, socket);
|
|
return;
|
|
} else {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
return;
|
|
}
|
|
} else if (mode.startsWith('+l')) {
|
|
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const limit = parseInt(params[2], 10);
|
|
if (isNaN(limit) || limit < 0) {
|
|
socket.write(`:${this.servername} 501 ${nickname} :Invalid channel limit\r\n`);
|
|
return;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
// replace limit mode if it exists
|
|
chan_modes = chan_modes.filter(m => !/^l\d+$/.test(m));
|
|
this.channelmodes.set(channel, [...chan_modes, `l${limit}`]);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +l ${limit}\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-l')) {
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => !/^l\d+$/.test(m)));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -l\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+k')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const key = params[2];
|
|
if (key.length < 1 || key.length > this.max_keylen) {
|
|
socket.write(`:${this.servername} 501 ${nickname} :Invalid channel key\r\n`);
|
|
return;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, `k ${key}`]);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +k ${key}\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-k')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => !/^k.*$/.test(m)));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -k\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+i')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 'i']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +i\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-i')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 'i'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -i\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+o')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelops.set(channel, (this.channelops.get(channel) || new Set()).add(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +o ${target_nickname}\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-o')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelops.set(channel, (this.channelops.get(channel) || new Set()).delete(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -o ${target_nickname}\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+v')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelvoices.set(channel, (this.channelvoices.get(channel) || new Set()).add(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +v ${target_nickname}\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-v')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelvoices.set(channel, (this.channelvoices.get(channel) || new Set()).delete(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -v ${target_nickname}\r\n`, socket);
|
|
return;
|
|
} else if (mode.startsWith('+b')) {
|
|
const banMask = params[2];
|
|
if (!banMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
if (!this.channelbans.has(channel)) {
|
|
this.channelbans.set(channel, new Set());
|
|
}
|
|
if (this.channelbans.get(channel).length >= this.maxbans) {
|
|
socket.write(`:${this.servername} 478 ${nickname} ${channel} :Channel ban list is full\r\n`);
|
|
return;
|
|
}
|
|
this.channelbans.get(channel).add(banMask);
|
|
socket.write(`:${this.servername} 367 ${nickname} ${channel} ${banMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +b ${banMask}\r\n`, socket);
|
|
return
|
|
} else if (mode.startsWith('-b')) {
|
|
const banMask = params[2];
|
|
if (!banMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
if (this.channelbans.has(channel)) {
|
|
this.channelbans.get(channel).delete(banMask);
|
|
socket.write(`:${this.servername} 368 ${nickname} ${channel} ${banMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -b ${banMask}\r\n`, socket);
|
|
return
|
|
} else {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
return
|
|
}
|
|
} else if (mode.startsWith('+e')) {
|
|
const exemptMask = params[2];
|
|
if (!exemptMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
if (!this.channelexemptions.has(channel)) {
|
|
this.channelexemptions.set(channel, new Set());
|
|
}
|
|
if (this.channelexemptions.get(channel).size >= this.maxexemptions) {
|
|
socket.write(`:${this.servername} 478 ${nickname} ${channel} :Channel exemption list is full\r\n`);
|
|
return;
|
|
}
|
|
this.channelexemptions.get(channel).add(exemptMask);
|
|
socket.write(`:${this.servername} 347 ${nickname} ${channel} ${exemptMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +e ${exemptMask}\r\n`, socket);
|
|
return;
|
|
} else if (mode.startsWith('-e')) {
|
|
const exemptMask = params[2];
|
|
if (!exemptMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
return;
|
|
}
|
|
if (this.channelexemptions.has(channel)) {
|
|
this.channelexemptions.get(channel).delete(exemptMask);
|
|
socket.write(`:${this.servername} 348 ${nickname} ${channel} ${exemptMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -e ${exemptMask}\r\n`, socket);
|
|
return;
|
|
} else {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
return;
|
|
}
|
|
} else if (mode.startsWith("+n")) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 'n']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +n\r\n`);
|
|
return;
|
|
} else if (mode.startsWith("-n")) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 'n'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -n\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+s')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 's']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +s\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-s')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 's'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -s\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+p')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 'p']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +p\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-p')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 'p'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -p\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+z')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
if (!socket.secure) {
|
|
socket.write(`:${this.servername} 484 ${nickname} ${channel} :You must be connected via SSL/TLS to set +z\r\n`);
|
|
return;
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 'z']);
|
|
if (this.kick_insecure_on_z) {
|
|
const usersInChannel = this.channels.get(channel) || new Set();
|
|
for (const user of usersInChannel) {
|
|
const userSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (userSocket && !userSocket.secure) {
|
|
userSocket.write(`:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${userSocket.nickname} :Channel is now +z (SSL-only)\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${userSocket.nickname} :Channel is now +z (SSL-only)\r\n`, userSocket);
|
|
this.channels.get(channel).delete(user);
|
|
}
|
|
}
|
|
}
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +z\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-z')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 'z'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -z\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('+t')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 't']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} +t\r\n`);
|
|
return;
|
|
} else if (mode.startsWith('-t')) {
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 't'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} MODE ${channel} -t\r\n`);
|
|
return;
|
|
} else if (mode === 'b') {
|
|
if (this.channelbans.has(channel)) {
|
|
const bans = Array.from(this.channelbans.get(channel));
|
|
for (const ban of bans) {
|
|
socket.write(`:${this.servername} 367 ${nickname} ${channel} ${ban}\r\n`);
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 368 ${nickname} ${channel} :End of channel ban list\r\n`);
|
|
return;
|
|
} else if (mode === 'e') {
|
|
if (this.channelexemptions.has(channel)) {
|
|
const exemptions = Array.from(this.channelexemptions.get(channel));
|
|
for (const exemption of exemptions) {
|
|
socket.write(`:${this.servername} 348 ${nickname} ${channel} ${exemption}\r\n`);
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 349 ${nickname} ${channel} :End of channel exception list\r\n`);
|
|
return;
|
|
} else if (mode === 'I') {
|
|
if (this.channelinvites.has(channel)) {
|
|
const invites = Array.from(this.channelinvites.get(channel));
|
|
for (const invite of invites) {
|
|
socket.write(`:${this.servername} 336 ${nickname} ${channel} ${invite}\r\n`);
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 337 ${nickname} ${channel} :End of channel invite list\r\n`);
|
|
return;
|
|
} else {
|
|
socket.write(`:${this.servername} 472 ${nickname} ${mode} :is unknown mode char to me\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
|
|
doMOTD(nickname, socket) {
|
|
socket.write(`:${this.servername} 375 ${nickname} :- minisrv ${this.minisrv_config.version} Message of the Day\r\n`);
|
|
socket.write(`:${this.servername} 372 ${nickname} :${this.irc_motd}\r\n`);
|
|
socket.write(`:${this.servername} 376 ${nickname} :End of /MOTD command\r\n`);
|
|
}
|
|
|
|
doLogin(nickname, socket) {
|
|
socket.write(`:${this.servername} 001 ${nickname} :Welcome to the IRC server, ${nickname}\r\n`);
|
|
socket.write(`:${this.servername} 002 ${nickname} :Your host is ${this.servername}, running version minisrv ${this.minisrv_config.version}\r\n`);
|
|
socket.write(`:${this.servername} 003 ${nickname} :This server is ready to accept commands\r\n`);
|
|
socket.write(`:${this.servername} 004 ${nickname} ${this.servername} minisrv ${this.minisrv_config.version} oxizZws obtkmeZIlvn beIklov\r\n`);
|
|
for (const caps of this.caps) {
|
|
socket.write(`:${this.servername} 005 ${caps}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 042 ${nickname} ${socket.uniqueId} :your unique ID\r\n`);
|
|
|
|
const visibleClients = Array.from(this.nicknames.values()).filter(nick => {
|
|
const modes = this.usermodes.get(nick) || [];
|
|
return !modes.includes('i');
|
|
});
|
|
const invisibleClients = Array.from(this.nicknames.values()).filter(nick => {
|
|
const modes = this.usermodes.get(nick) || [];
|
|
return modes.includes('i');
|
|
});
|
|
const operClients = Array.from(this.nicknames.values()).filter(nick => {
|
|
const modes = this.usermodes.get(nick) || [];
|
|
return modes.includes('o');
|
|
});
|
|
|
|
socket.write(`:${this.servername} 251 ${nickname} :There are ${visibleClients.length} visible users and ${invisibleClients.length} invisible users on this server\r\n`);
|
|
socket.write(`:${this.servername} 252 ${nickname} ${operClients.length} :operator(s) online\r\n`);
|
|
socket.write(`:${this.servername} 253 ${nickname} ${this.channels.size} :channels formed\r\n`);
|
|
socket.write(`:${this.servername} 255 ${nickname} :I have ${this.clients.length} clients and 1 server\r\n`);
|
|
socket.write(`:${this.servername} 265 ${nickname} :Current Local Users: ${this.clients.length} Max: ${this.clientpeak}\r\n`);
|
|
for (const mode of this.default_user_modes) {
|
|
var usermodes = this.usermodes.get(nickname);
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
if (!usermodes.includes(mode)) {
|
|
usermodes.push(mode);
|
|
this.usermodes.set(nickname, usermodes);
|
|
}
|
|
}
|
|
if (socket.secure) {
|
|
var usermodes = this.usermodes.get(nickname);
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
usermodes.push('z');
|
|
this.usermodes.set(nickname, usermodes);
|
|
}
|
|
socket.write(`:${this.servername} 221 ${nickname} :+${this.usermodes.get(nickname).join('')}\r\n`);
|
|
this.getHostname(socket, (hostname) => {
|
|
socket.host = this.filterHostname(socket, hostname);
|
|
socket.realhost = hostname;
|
|
socket.write(`:${this.servername} 396 ${nickname} ${socket.host} :is now your displayed host\r\n`);
|
|
});
|
|
}
|
|
}
|
|
|
|
module.exports = WTVIRC; |