4412 lines
242 KiB
JavaScript
4412 lines
242 KiB
JavaScript
const net = require('net');
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const dns = require('dns');
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const tls = require('tls');
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const fs = require('fs');
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const path = require('path');
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const { get } = require('http');
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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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* zefIRCd - A node.js IRC server implementation
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* Tested with WebTV, KvIRC and mIRC.
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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.
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* hybridircd compatible server link protocol (tested with Anope IRC Services, and partially with hybridircd itself).
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* Channel modes are supported, including invite-only, topic protection, password protection, and user modes (op/halfop/voice), and more.
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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: Test for crashes with arbitrary data, or malformed commands (especially SSL handshake, or server interface).
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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 = '0.2.7';
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// Try to get git commit from environment variable or file, fallback to null if not available
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this.git_commit = this.getGitRevision();
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if (this.git_commit) {
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this.version += `-${this.git_commit}`;
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}
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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.channelData = new Map();
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this.usernames = new Map(); // nickname -> username
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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.servers = new Map(); // socket -> server information
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this.serverusers = new Map(); // server -> Set of users connected to this server
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this.reservednicks = [];
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this.klines = [];
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this.accounts = new Map(); // nickname -> account name
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this.hostnames = new Map(); // nickname -> hostname
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this.realhosts = new Map(); // nickname -> real IP address
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this.uniqueids = new Map(); // nickname -> unique ID mapping
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this.userinfo = new Map(); // nickname -> user info (e.g. real name)
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this.logdata = [];
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this.max_log_lines = 50;
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this.default_channel_modes = ['n','t'];
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this.default_user_modes = ['x'];
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this.server_start_time = this.getDate();
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this.allowed_common_characters = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','0','1','2','3','4','5','6','7','8','9','_','-'];
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this.allowed_chan_characters = [...this.allowed_common_characters, '.'];
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this.allowed_nick_characters = [...this.allowed_common_characters, '[',']','{','}','\\','|','^','-','~'];
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this.irc_config = minisrv_config.config.irc || {};
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this.channelprefixes = this.irc_config.channel_prefixes || ['#'];
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this.servername = this.irc_config.server_hostname || 'irc.local';
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this.network = this.irc_config.network || 'minisrv';
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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 || [
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'Welcome to the zefIRCd IRC server, powered by minisrv.',
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'This server is powered by Node.js, and the minisrv project.',
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'',
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'For more information, visit:',
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'https://github.com/zefie/zefie_wtvp_minisrv'
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];
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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_tls = this.irc_config.enable_ssl || false;
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this.maxtargets = this.irc_config.max_targets || 4;
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this.socket_timeout = 75; // Default socket timeout to 75 seconds, most clients will send PINGs every 60 seconds, so this should be enough to catch lost connections
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this.server_hello = this.irc_config.server_hello || `zefIRCd v${this.version} IRC server powered by minisrv`;
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this.enable_eval = this.debug || false; // Enable eval in debug mode only
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this.serverId = this.irc_config.server_id || '00A'; // Default server ID, can be overridden in config
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this.allow_public_vhosts = this.irc_config.allow_public_vhosts || true; // If true, users can set their host to a virtual host that is not a real hostname or IP address, if false, only opers can.
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this.kick_insecure_users_on_secure = this.irc_config.kick_insecure_users_on_secure || true; // If true, users without SSL connections will be kicked from a channel when +Z is applied
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this.hide_version = this.irc_config.hide_version || false; // If true, the server will not send its version in the MOTD
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this.clientpeak = 0;
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this.globalpeak = 0;
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this.socketpeak = 0;
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this.modeparamlimit = 5; // Technically we have no limit, but this is a good default for most IRC clients
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this.max_message_len = 512; // RFC2812 standard maximum message length (including \r\n)
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this.reject_overlength_messages = this.irc_config.reject_overlength_messages || true; // If true, messages longer than max_message_len will be rejected, if false, they will be truncated to max_message_len
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this.totalConnections = 0;
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this.supported_channel_modes = "Ibe,k,l,CNOQRSTVZcimnprt";
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this.supported_user_modes = "BRZciorswxz";
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this.supported_prefixes = ["ohv", "@%+"];
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this.supported_client_caps = ['chghost', 'away-notify', 'echo-message', 'invite-notify', 'multi-prefix', 'userhost-in-names', 'account-notify', 'extended-join'];
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this.supported_server_caps = ['TBURST', 'EOB', 'IE', 'EX'];
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this.enable_webtv_command_hacks = this.irc_config.enable_webtv_command_hacks || true;
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this.supported_webtv_command_hacks = ["MODE", "KICK"]; // You could technically add any command currently supported by the IRCd here, such as OPER, KILL, KLINE, etc.
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this.session_store_path = this.wtvshared.getAbsolutePath(this.minisrv_config.config.SessionStore + path.sep + 'minisrv_internal_irc');
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this.klines_path = this.session_store_path + path.sep + 'klines.json';
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this.caps = [
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`AWAYLEN=${this.awaylen} CASEMAPPING=rfc1459 BOT=B CHANMODES=${this.supported_channel_modes} CHANNELLEN=${this.channellen} CHANTYPES=${this.channelprefixes.join('')} PREFIX=(${this.supported_prefixes[0]})${this.supported_prefixes[1]} USERMODES=${this.supported_user_modes} MAXLIST=b:${this.maxbans},e:${this.maxexcept},i:${this.maxinvite},k:${this.maxkeylen},l:${this.maxlimit}`,
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`CHARSET=ascii MODES=${this.modeparamlimit} EXCEPTS=e INVEX=I NETWORK=${this.network} 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.loadKLinesFromFile();
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if (this.enable_tls) {
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this.supported_client_caps.push('tls');
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}
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if (this.irc_config.channels) {
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for (const channel of this.irc_config.channels) {
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this.createChannel(channel.name);
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if (channel.modes && Array.isArray(channel.modes)) {
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this.channelData.get(channel.name).modes = [...channel.modes];
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}
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if (channel.topic) {
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this.channelData.get(channel.name).topic = channel.topic;
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}
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}
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}
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this.server_start_time = this.getDate();
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this.server = net.createServer(async socket => {
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// Detect SSL handshake and wrap socket if needed
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socket.once('data', async firstChunk => {
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this.totalConnections++;
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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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this.debugLog('error', `Socket error: ${err.message}`);
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this.terminateSession(socket, true);
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});
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socket.on('timeout', () => {
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this.debugLog('warn', `Socket timeout for ${socket.remoteAddress}`);
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this.terminateSession(socket, true);
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});
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// Check if the first byte indicates SSL/TLS handshake (0x16 for TLS Handshake)
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if (Buffer.isBuffer(firstChunk) ? firstChunk[0] === 0x16 : firstChunk.charCodeAt(0) === 0x16) {
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if (!this.enable_tls) {
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// If SSL is not enabled, close the socket
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this.safeWriteToSocket(socket, `:${this.servername} 421 * :TLS is not enabled on this server\r\n`);
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this.terminateSession(socket, true);
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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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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.debugLog('error', `Secure socket error: ${err.message}`);
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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', async () => {
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this.debugLog('info', 'Secure connection (SSL) established with '+ socket.remoteAddress);
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socket.removeAllListeners();
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await this.initializeSocket(secureSocket, true);
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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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await this.initializeSocket(socket);
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socket.emit('data', firstChunk.toString('ascii'));
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socket.resume();
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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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this.debugLog('info', `zefIRCd ${this.version} server started on port ${this.host}:${this.port}`);
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});
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}
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async safeWriteToSocket(socket, data) {
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if (!socket || !data) {
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this.debugLog('error', 'writeToSocket called with invalid parameters:', socket, data);
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return;
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}
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if (typeof data !== 'string') {
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data = data.toString('ascii');
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}
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if (data.length > this.max_message_len) {
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data = data.substring(0, this.max_message_len - 2) + '\r\n';
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this.debugLog('warn', `Data length exceeds max_message_len (${this.max_message_len}), truncating: ${data.length} > ${this.max_message_len}`);
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}
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while (socket.writable === false) {
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await new Promise(resolve => setTimeout(resolve, 10));
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}
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socket.write(data);
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}
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async initializeSocket(socket, secure = false, oldSocket = null) {
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if (this.debug) {
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// debug output for socket data
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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, '').replace(/\n/g, '');
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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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if (oldSocket) {
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socket.registered = oldSocket.registered;
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socket.nickname = oldSocket.nickname;
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socket.username = oldSocket.username;
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socket.isserver = oldSocket.isserver;
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socket.is_srv_authorized = oldSocket.is_srv_authorized;
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socket.signedoff = oldSocket.signedoff;
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socket.hostname_resolved = oldSocket.hostname_resolved;
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socket.realhost = oldSocket.realhost;
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socket.client_version = oldSocket.client_version;
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socket.client_caps = oldSocket.client_caps || [];
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socket.host = oldSocket.host;
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socket.timestamp = oldSocket.timestamp;
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socket.uniqueId = oldSocket.uniqueId;
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} else {
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socket.registered = false;
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socket.nickname = '';
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socket.username = '';
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socket.isserver = false;
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socket.is_srv_authorized = false;
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socket.signedoff = false;
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socket.hostname_resolved = false;
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socket.realhost = socket.remoteAddress;
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socket.client_version = '';
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socket.client_caps = [];
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socket.host = this.filterHostname(socket, socket.remoteAddress);
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socket.timestamp = this.getDate();
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socket.uniqueId = `${this.serverId}${this.generateUniqueId(socket)}`;
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}
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socket.secure = secure;
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socket.upgrading_to_tls = false;
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socket.error_count = 0;
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socket.lastseen = Date.now();
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await this.doInitialHandshake(socket);
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socket.on('data', async data => {
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socket.lastseen = Date.now();
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await 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.on('close', () => {
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this.terminateSession(socket, false);
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});
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// Start a loop to check for idle clients and send PING if needed
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socket._idleInterval = setInterval(() => {
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if (socket.signedoff) {
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clearInterval(socket._idleInterval);
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return;
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}
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const now = Date.now();
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if ((now - socket.lastseen) > (this.socket_timeout * 1000) + 10000) {
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// Over 10 seconds has passed since we sent our PING, assume lost
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this.debugLog('warn', `Socket ${socket.remoteAddress} has been idle for too long, terminating session`);
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if (socket.nickname) {
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this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} QUIT :Ping timeout (${Math.floor((now - socket.lastseen) / 1000)} seconds)\r\n`, socket);
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this.broadcastToAllServers(`:${socket.uniqueId} QUIT :Ping timeout (${Math.floor((now - socket.lastseen) / 1000)} seconds)\r\n`, serverSocket);
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}
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socket.signedoff = true;
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this.terminateSession(socket, true);
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return;
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} else if ((now - socket.lastseen) > (this.socket_timeout * 1000)) {
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// Client has been idle for too long, send PING
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if (socket.isserver) {
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this.safeWriteToSocket(socket, `:${this.serverId} PING ${this.serverId} ${this.servername}\r\n`);
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} else {
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this.safeWriteToSocket(socket, `PING :${this.servername}\r\n`);
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}
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return;
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}
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}, 10000); // check every 5 seconds
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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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}
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async processServerData(socket, line) {
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// Handle server-specific commands
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const parts = line.split(' ');
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if (parts[0] == `:${socket.uniqueId}`) {
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parts.shift(); // Remove the unique ID prefix
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}
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if (parts.length < 1) return; // Invalid command
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const command = parts[0].toUpperCase();
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switch (command) {
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case 'PASS':
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// Handle PASS command from server
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if (parts.length < 2) {
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this.debugLog('warn', 'Invalid PASS command from server');
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return;
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}
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const password = parts[1];
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const servers = this.irc_config.servers || {};
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let matchedServer = null;
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Object.entries(servers).forEach(([key, serverObj]) => {
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if (serverObj.password && serverObj.password === password) {
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matchedServer = serverObj;
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this.debugLog('warn', `Server ${serverObj.name || key} matched with provided password`);
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this.safeWriteToSocket(socket, `PASS ${serverObj.password}\r\n`);
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socket.is_srv_authorized = true;
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var totalSockets = this.clients.length + this.servers.size;
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this.socketpeak = Math.max(this.socketpeak, totalSockets);
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return;
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}
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});
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if (!matchedServer) {
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this.safeWriteToSocket(socket, `:${this.servername} :ERROR :Invalid server password\r\n`);
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socket.error_count++;
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setTimeout((socket) => {
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if (socket) {
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socket.error_count--;
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}
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}, 60000);
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if (socket.error_count >= 5) {
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this.safeWriteToSocket(socket, `:${this.servername} :ERROR :Too many errors, disconnecting\r\n`);
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this.terminateSession(socket, true);
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}
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return;
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}
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socket.serverinfo = matchedServer
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return;
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case 'CAPAB':
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if (!this.checkRegistered(socket, true)) {
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break;
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}
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// Handle CAPAB command from server
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if (parts.length < 2) {
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this.debugLog('warn', 'Invalid CAPAB command from server');
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break;
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}
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var capabilities = parts.slice(1).join(' ').slice(1); // Remove leading ':'
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capabilities = capabilities.split(' ');
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this.debugLog('info', `Received CAPAB from server: ${capabilities.join(' ')}`);
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var output_reply = [];
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for (const cap of capabilities) {
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if (this.supported_server_caps.includes(cap)) {
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output_reply.push(cap);
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} else {
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this.debugLog('warn', `Unsupported server capability: ${cap}`);
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}
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}
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this.safeWriteToSocket(socket, `CAPAB :${output_reply.join(' ')}\r\n`);
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break;
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case 'SERVER':
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if (!this.checkRegistered(socket, true)) {
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break;
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}
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// Handle SERVER command from server
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if (parts.length < 6) {
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this.debugLog('warn', 'Invalid SERVER command from server');
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break;
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}
|
|
var serverName = parts[1];
|
|
var serverNumber = parts[2];
|
|
var serverId = parts[3];
|
|
var serverExtra = parts[4]
|
|
var serverInfo = parts.slice(5).join(' ');
|
|
socket.isserver = true;
|
|
this.clients = this.clients.filter(c => c !== socket);
|
|
this.clientpeak = this.clientpeak - 1;
|
|
socket.registered = true;
|
|
socket.servername = serverName;
|
|
socket.uniqueId = serverId;
|
|
socket.serverIdent = line;
|
|
this.servers.set(socket, serverName)
|
|
this.safeWriteToSocket(socket, `SERVER ${this.servername} 1 ${this.serverId} + :${this.server_hello}\r\n`);
|
|
for (const [sock, nickname] of this.nicknames.entries()) {
|
|
if (!sock || !nickname) continue;
|
|
const uniqueId = sock.uniqueId;
|
|
const signonTime = Math.floor(this.usersignontimestamps.get(nickname) || this.getDate());
|
|
const userModes = this.getUserModes(nickname);
|
|
const username = this.usernames.get(nickname) || '';
|
|
this.safeWriteToSocket(socket, `:${this.serverId} UID ${nickname} 1 ${signonTime} +${userModes} ${username} ${sock.host} ${sock.realhost} ${sock.remoteAddress} ${uniqueId} * :${sock.userinfo}\r\n`);
|
|
}
|
|
for (const [channel, channelObj] of this.channelData.entries()) {
|
|
const modes = channelObj.modes;
|
|
for (const user of channelObj.users) {
|
|
let userPrefix = '';
|
|
if (channelObj.ops.has(user)) {
|
|
userPrefix = '@';
|
|
} else if (channelObj.halfops.has(user)) {
|
|
userPrefix = '%';
|
|
} else if (channelObj.voices.has(user)) {
|
|
userPrefix = '+';
|
|
}
|
|
const userUniqueId = this.uniqueids.get(user);
|
|
if (userUniqueId) {
|
|
this.safeWriteToSocket(socket, `:${this.serverId} SJOIN ${this.getDate()} ${channel} +${modes.join('')} :${userPrefix}${userUniqueId}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.broadcastToAllServers(socket.serverIdent, socket);
|
|
// Send EOB to the server
|
|
this.safeWriteToSocket(socket, `:${this.serverId} EOB \r\n`);
|
|
break;
|
|
case 'SVINFO':
|
|
if (!this.checkRegistered(socket, true)) {
|
|
break;
|
|
}
|
|
// Handle SVINFO command from server
|
|
if (parts.length < 4) {
|
|
this.debugLog('warn', 'Invalid SVINFO command from server');
|
|
return;
|
|
}
|
|
const serverInfoMessage = `:${this.serverId} SVINFO 6 6 0 ${this.getDate()}\r\n`;
|
|
this.safeWriteToSocket(socket, serverInfoMessage);
|
|
break
|
|
case 'PING':
|
|
// Respond to PING with PONG
|
|
var pong = parts.slice(1).join(' ');
|
|
if (pong.startsWith(':')) {
|
|
pong = pong.slice(1); // Remove leading ':'
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.serverId} PONG ${pong}\r\n`);
|
|
break;
|
|
case 'PONG':
|
|
// Ignore PONG from server
|
|
break;
|
|
case 'RESV':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
// Handle RESV command from server
|
|
if (parts.length < 2) {
|
|
this.debugLog('warn', 'Invalid RESV command from server');
|
|
break;
|
|
}
|
|
const targetMask = parts[1];
|
|
const expiry = parseInt(parts[2]) || 0;
|
|
const reservedNick = parts[3];
|
|
var reason = parts.slice(4).join(' ') || '';
|
|
this.reservednicks.push(reservedNick);
|
|
if (expiry > 0) {
|
|
setTimeout(() => {
|
|
const index = this.reservednicks.indexOf(reservedNick);
|
|
if (index !== -1) {
|
|
this.reservednicks.splice(index, 1);
|
|
this.debugLog('info', `Reservation for ${reservedNick} expired`);
|
|
}
|
|
}, expiry * 1000);
|
|
}
|
|
this.broadcastToAllServers(`:${socket.servername} RESV ${targetMask} ${expiry} ${reservedNick} :${reason}\r\n`, socket);
|
|
break;
|
|
case 'UID':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
// Handle UID command from server
|
|
if (parts.length < 10) {
|
|
this.debugLog('warn', 'Invalid UID command from server');
|
|
break;
|
|
}
|
|
var nickname = parts[1];
|
|
const server_Id = parts[2];
|
|
const timestamp = parseInt(parts[3]) || 0;
|
|
const userModes = parts[4].replace("/\+/g","").split('');
|
|
var username = parts[5];
|
|
var hostname = parts[6];
|
|
const ipaddress = parts[7];
|
|
const ipaddress2 = parts[8];
|
|
const userUniqueId = parts[9];
|
|
var userinfo = parts.slice(10).join(' ').slice(1); // Remove leading ':'
|
|
this.addRemoteServerUser(socket, nickname);
|
|
this.addUserUniqueId(nickname, userUniqueId);
|
|
this.globalpeak = Math.max(this.globalpeak, this.countGlobalUsers());
|
|
this.usersignontimestamps.set(nickname, timestamp);
|
|
this.usernames.set(nickname, username);
|
|
this.hostnames.set(nickname, hostname);
|
|
this.realhosts.set(nickname, ipaddress2);
|
|
this.userinfo.set(nickname, userinfo);
|
|
for (const mode of userModes) {
|
|
this.setUserMode(nickname, mode, true);
|
|
}
|
|
this.broadcastToAllServers(`:${socket.servername} UID ${nickname} ${server_Id} ${timestamp} +${userModes.join('')} ${username} ${hostname} ${ipaddress} ${ipaddress2} ${userUniqueId} * :${userinfo}\r\n`, socket);
|
|
break;
|
|
case 'SVSHOST':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
// Handle SVSHOST command from server
|
|
if (parts.length < 4) {
|
|
this.debugLog('warn', 'Invalid SVSHOST command from server');
|
|
break;
|
|
}
|
|
var uniqueId = parts[1];
|
|
var hostname = parts[3];
|
|
var targetSocket = this.findSocketByUniqueId(uniqueId);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for unique ID ${uniqueId}`);
|
|
break;
|
|
}
|
|
this.hostnames.set(this.findUserByUniqueId(uniqueId), hostname);
|
|
targetSocket.host = hostname;
|
|
if (targetSocket.client_caps && targetSocket.client_caps.includes('CHGHOST')) {
|
|
this.safeWriteToSocket(targetSocket, `:${targetSocket.nickname}!${targetSocket.username}@${targetSocket.host} CHGHOST ${targetSocket.username} ${targetSocket.host}\r\n`);
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${this.servername} 396 ${targetSocket.nickname} ${targetSocket.host} :is now your visible host\r\n`);
|
|
this.broadcastToAllServers(`:${socket.servername} SVSHOST ${uniqueId} ${hostname}\r\n`, socket);
|
|
break;
|
|
case 'SVSACCOUNT':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (parts.length < 4) {
|
|
this.debugLog('warn', 'Invalid SVSACCOUNT command from server');
|
|
break;
|
|
}
|
|
var uniqueId = parts[1];
|
|
var accountName = parts[3];
|
|
var nickname = this.findUserByUniqueId(uniqueId);
|
|
if (!nickname) {
|
|
this.debugLog('warn', `No user found for unique ID ${uniqueId}`);
|
|
break;
|
|
}
|
|
if (accountName === '*') {
|
|
// Remove account association
|
|
this.accounts.delete(nickname);
|
|
} else {
|
|
this.accounts.set(nickname, accountName);
|
|
}
|
|
var targetSocket = this.findSocketByUniqueId(uniqueId);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for unique ID ${uniqueId}`);
|
|
break;
|
|
}
|
|
if (targetSocket.client_caps && targetSocket.client_caps.includes('account-notify')) {
|
|
this.safeWriteToSocket(targetSocket, `:${targetSocket.nickname}!${targetSocket.username}@${targetSocket.host} ACCOUNT ${accountName}\r\n`);
|
|
}
|
|
break;
|
|
case 'SVSNICK':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
// Handle SVSNICK command from server
|
|
if (parts.length < 5) {
|
|
this.debugLog('warn', 'Invalid SVSNICK command from server');
|
|
break;
|
|
}
|
|
var oldNick = this.findUserByUniqueId(parts[1]);
|
|
var newNick = parts[3];
|
|
var targetSocket = this.findSocketByUniqueId(parts[1]);
|
|
this.broadcastUser(oldNick, `:${oldNick}!${this.usernames.get(oldNick)}@${targetSocket.host} NICK :${newNick}\r\n`);
|
|
this.processNickChange(targetSocket, newNick);
|
|
this.broadcastToAllServers(line, socket);
|
|
break;
|
|
case 'SJOIN':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
var channel = parts[2];
|
|
var modes = parts[3];
|
|
var uniqueId = parts[4];
|
|
if (uniqueId.startsWith(':')) {
|
|
uniqueId = uniqueId.slice(1); // Remove leading ':'
|
|
}
|
|
if (!uniqueId) {
|
|
this.broadcastToAllServers(`:${socket.servername} SJOIN ${this.getDate()} ${channel} +${modes} :\r\n`, socket);
|
|
break;
|
|
}
|
|
while (['@', '%', '+'].includes(uniqueId[0])) {
|
|
uniqueId = uniqueId.slice(1);
|
|
}
|
|
var userSocket = this.findSocketByUniqueId(uniqueId);
|
|
var nickname = this.findUserByUniqueId(uniqueId);
|
|
var username = this.usernames.get(nickname) || nickname;
|
|
var hostname = this.hostnames.get(nickname)
|
|
if (!this.channelData.has(channel)) {
|
|
this.createChannel(channel);
|
|
}
|
|
if (!this.channelData.get(channel).users.has(nickname)) {
|
|
this.channelData.get(channel).users.add(nickname);
|
|
}
|
|
if (nickname && username && hostname) {
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${hostname} JOIN ${channel}\r\n`, userSocket);
|
|
}
|
|
this.broadcastToAllServers(`:${socket.servername} SJOIN ${this.getDate()} ${channel} +${modes} :${uniqueId}\r\n`, socket);
|
|
break;
|
|
case 'SQUIT':
|
|
this.broadcastToAllServers(`:${socket.servername} SQUIT ${parts[1]} :${parts.slice(2).join(' ').slice(1)}\r\n`, socket);
|
|
this.servers.delete(socket);
|
|
break;
|
|
case (command.match(/^\d{3}$/) || {}).input:
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
// Numeric reply from server
|
|
// Numeric replies are usually in the format: <numeric> <nickname> :<message>
|
|
var senderID = parts[1]
|
|
var targetSocket = this.findSocketByUniqueId(senderID);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for unique ID ${senderID}`);
|
|
break;
|
|
}
|
|
var responded = false;
|
|
switch (command) {
|
|
case '307':
|
|
// WHOIS AWAY reply
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', 'Invalid WHOIS AWAY reply from server');
|
|
break;
|
|
}
|
|
var whoisNick = parts[2];
|
|
var awayMessage = parts.slice(3).join(' ');
|
|
if (awayMessage.startsWith(':')) {
|
|
awayMessage = awayMessage.slice(1);
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${socket.servername} 307 ${whoisNick} ${whoisNick} :${awayMessage}\r\n`);
|
|
responded = true;
|
|
break;
|
|
case '311':
|
|
// WHOIS reply
|
|
var whoisNick = parts[2];
|
|
var whoisUser = parts[3];
|
|
var whoisHost = parts[4];
|
|
var whoisServer = parts[5];
|
|
var whoisRealname = parts.slice(6).join(' ');
|
|
if (whoisRealname.startsWith(':')) {
|
|
whoisRealname = whoisRealname.slice(1);
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${socket.servername} 311 ${whoisNick} ${whoisNick} ${whoisUser} ${whoisHost} ${whoisServer} :${whoisRealname}\r\n`);
|
|
responded = true;
|
|
break;
|
|
case '312':
|
|
// WHOIS SERVER reply
|
|
var serverID = parts[1];
|
|
var whoisNick = parts[2];
|
|
var serverName = parts[2];
|
|
var serverInfo = parts.slice(3).join(' ');
|
|
if (serverInfo.startsWith(':')) {
|
|
serverInfo = serverInfo.slice(1);
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${socket.servername} 312 ${whoisNick} ${serverName} :${serverInfo}\r\n`);
|
|
responded = true;
|
|
break;
|
|
case '313':
|
|
// WHOIS operator reply
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', 'Invalid WHOIS operator reply from server');
|
|
break;
|
|
}
|
|
var whoisNick = parts[2];
|
|
var message = parts.slice(3).join(' ');
|
|
if (message.startsWith(':')) {
|
|
message = message.slice(1);
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${socket.servername} 313 ${whoisNick} ${whoisNick} :${message}\r\n`);
|
|
responded = true;
|
|
break;
|
|
case '317':
|
|
// WHOIS idle reply
|
|
if (parts.length < 4) {
|
|
this.debugLog('warn', 'Invalid WHOIS idle reply from server');
|
|
break;
|
|
}
|
|
var whoisNick = parts[2];
|
|
var idleTime = parts[3];
|
|
var signonTime = parts[4];
|
|
this.safeWriteToSocket(targetSocket, `:${socket.servername} 317 ${whoisNick} ${whoisNick} ${idleTime} ${signonTime} :seconds idle, signon time\r\n`);
|
|
responded = true;
|
|
break;
|
|
case '318':
|
|
// WHOIS end of reply
|
|
if (parts.length < 2) {
|
|
this.debugLog('warn', 'Invalid WHOIS end of reply from server');
|
|
break;
|
|
}
|
|
var whoisNick = parts[1];
|
|
this.safeWriteToSocket(targetSocket, `:${socket.servername} 318 ${whoisNick} :End of WHOIS list\r\n`);
|
|
responded = true;
|
|
break;
|
|
}
|
|
if (responded) {
|
|
break;
|
|
}
|
|
if (parts.length < 4) {
|
|
this.debugLog('warn', 'Invalid numeric reply from server');
|
|
break;
|
|
}
|
|
const numericCode = parts[0];
|
|
const targetID = parts[1];
|
|
var numericMessage = parts.slice(3).join(' ');
|
|
if (numericMessage.startsWith(':')) {
|
|
numericMessage = numericMessage.slice(1); // Remove leading ':'
|
|
}
|
|
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for target unique ID ${targetID}`);
|
|
break;
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${socket.serverinfo.name} ${numericCode} ${targetID} :${numericMessage}\r\n`);
|
|
break;
|
|
default:
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (command.startsWith(':')) {
|
|
// part out the line to "sourceUniqueId command targetUniqueId :message"
|
|
var sourceUniqueId = parts[0].slice(1); // Remove the leading ':'
|
|
var nickname = this.findUserByUniqueId(sourceUniqueId);
|
|
if (!nickname) {
|
|
this.debugLog('warn', `No nickname found for unique ID ${sourceUniqueId}`);
|
|
break;
|
|
}
|
|
var srvCommand = parts[1];
|
|
switch (srvCommand) {
|
|
case 'QUIT':
|
|
var user_name = this.usernames.get(nickname) || nickname;
|
|
var message = parts.slice(2).join(' ').slice(1); // Remove leading ':'
|
|
// Remove user from the server's user list
|
|
const serverUsers = this.serverusers.get(socket);
|
|
if (serverUsers && typeof serverUsers.delete === 'function') {
|
|
const nickToRemove = this.findUserByUniqueId(sourceUniqueId);
|
|
serverUsers.delete(nickToRemove);
|
|
}
|
|
this.cleanupUserSession(user_name);
|
|
this.broadcastToAllServers(`:${nickname}!${user_name}@${this.servername} QUIT :${message}\r\n`, socket);
|
|
break;
|
|
case 'JOIN':
|
|
var channel = this.findChannel(parts[3]);
|
|
if (!channel || !this.channelData.has(channel)) {
|
|
channel = parts[3];
|
|
this.createChannel(channel);
|
|
}
|
|
var userSocket = this.findSocketByUniqueId(sourceUniqueId);
|
|
if (!userSocket) {
|
|
this.debugLog('warn', `No socket found for source unique ID ${sourceUniqueId}`);
|
|
break;
|
|
}
|
|
var username = this.usernames.get(nickname) || nickname;
|
|
if (!this.channelData.get(channel).users.has(nickname)) {
|
|
this.channelData.get(channel).users.add(nickname);
|
|
}
|
|
this.broadcastChannelJoin(channel, userSocket);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} JOIN ${channel}\r\n`, socket);
|
|
break;
|
|
case 'PART':
|
|
var channel = this.findChannel(parts[2]);
|
|
if (!channel) {
|
|
this.debugLog('warn', `No channel found for PART command: ${parts[2]}`);
|
|
break;
|
|
}
|
|
if (this.channelData.get(channel).ops.has(nickname)) {
|
|
this.channelData.get(channel).ops.delete(nickname);
|
|
}
|
|
if (this.channelData.get(channel).halfops.has(nickname)) {
|
|
this.channelData.get(channel).halfops.delete(nickname);
|
|
}
|
|
if (this.channelData.get(channel).voices.has(nickname)) {
|
|
this.channelData.get(channel).voices.delete(nickname);
|
|
}
|
|
|
|
var username = this.usernames.get(nickname) || nickname;
|
|
var hostname = this.hostnames.get(nickname);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${hostname} PART ${channel} :${parts.slice(4).join(' ')}\r\n`, userSocket);
|
|
if (this.channelData.has(channel) && this.channelData.get(channel).users.size === 0) {
|
|
this.deleteChannel(channel);
|
|
}
|
|
this.broadcastToAllServers(`:${sourceUniqueId} PART ${channel} :${parts.slice(4).join(' ')}\r\n`, socket);
|
|
break;
|
|
case 'GLOBOPS':
|
|
var message = parts.slice(3).join(' ');
|
|
this.broadcastToAllServers(`:${sourceUniqueId} GLOBOPS :${message}`, socket);
|
|
break;
|
|
case 'TBURST':
|
|
// Handle TBURST command from server
|
|
if (parts.length < 6) {
|
|
this.debugLog('warn', `Invalid TBURST command from server: ${line}`);
|
|
break;
|
|
}
|
|
var channel = parts[3];
|
|
var topic = parts.slice(6).join(' ');
|
|
if (topic.startsWith(':')) {
|
|
topic = topic.slice(1);
|
|
}
|
|
if (!this.channelData.has(channel)) {
|
|
this.createChannel(channel);
|
|
}
|
|
this.channelData.get(channel).topic = topic;
|
|
this.broadcastChannel(channel, `:${nickname} TOPIC ${channel} :${topic}\r\n`);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} TBURST ${channel} :${topic}\r\n`, socket);
|
|
break;
|
|
case 'KILL':
|
|
// Handle KILL command from server
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', `Invalid KILL command from server: ${line}`);
|
|
break;
|
|
}
|
|
var targetUniqueId = parts[2];
|
|
var targetSocket = this.findSocketByUniqueId(targetUniqueId);
|
|
var targetNickname = this.findUserByUniqueId(targetUniqueId);
|
|
var sourceUsername = this.usernames.get(nickname) || nickname;
|
|
var reason = parts.slice(3).join(' ');
|
|
this.safeWriteToSocket(targetSocket, `:${nickname}!${sourceUsername}@${socket.serverinfo.name} KILL ${targetNickname} :${reason}\r\n`);
|
|
this.broadcastUser(targetNickname, `:${nickname}!${sourceUsername}@${socket.serverinfo.name} KILL ${targetNickname} :${reason}\r\n`, targetSocket);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} KILL ${targetUniqueId} :${reason}\r\n`, socket);
|
|
this.broadcastConnection(socket, `Killed: ${reason}`);
|
|
this.terminateSession(targetSocket, true);
|
|
break;
|
|
case 'MODE':
|
|
var targetUniqueId = parts[2];
|
|
if (this.channelprefixes.some(prefix => targetUniqueId.startsWith(prefix))) {
|
|
var targetChannel = this.findChannel(targetUniqueId)
|
|
if (!targetChannel) {
|
|
this.debugLog('warn', `No channel found for MODE command: ${line}`);
|
|
break;
|
|
}
|
|
// It's a channel, broadcast to all users in the channel
|
|
if (this.channelData.has(targetChannel)) {
|
|
var modes = parts[3];
|
|
this.processChannelModes(nickname, targetChannel, modes, parts.slice(4), socket);
|
|
}
|
|
break;
|
|
}
|
|
var targetSocket = this.findSocketByUniqueId(targetUniqueId);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for target unique ID ${targetUniqueId}`);
|
|
break;
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${targetSocket.nickname} MODE ${targetSocket.nickname} ${parts.slice(2).join(' ')}\r\n`);
|
|
if (this.clientIsWebTV(targetSocket) && this.enable_webtv_command_hacks) {
|
|
this.sendWebTVNoticeTo(targetSocket, `The network has set your user mode: ${parts.slice(3).join(' ')}`);
|
|
}
|
|
this.broadcastToAllServers(`:${sourceUniqueId} MODE ${targetUniqueId} ${parts.slice(3).join(' ')}\r\n`, socket);
|
|
break;
|
|
case 'NICK':
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', 'Invalid NICK command from server');
|
|
break;
|
|
}
|
|
var targetSocket = this.findSocketByUniqueId(sourceUniqueId);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for source unique ID ${sourceUniqueId}`);
|
|
break;
|
|
}
|
|
var oldNick = targetSocket.nickname;
|
|
var newNick = parts[2];
|
|
|
|
if (this.nicknames.has(newNick)) {
|
|
this.safeWriteToSocket(targetSocket, `:${this.servername} 433 ${oldNick} ${newNick} :Nickname is already in use\r\n`);
|
|
break;
|
|
}
|
|
this.processNickChange(targetSocket, newNick);
|
|
this.broadcastUser(oldNick, `:${targetSocket.nickname}!${targetSocket.username}@${targetSocket.host} NICK :${newNick}\r\n`, targetSocket);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} NICK ${newNick}\r\n`, socket);
|
|
break;
|
|
case 'TOPIC':
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', 'Invalid TOPIC command from server');
|
|
break;
|
|
}
|
|
var channel = this.findChannel(parts[2]);
|
|
if (!channel || !this.channelData.has(channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var topic = parts.slice(3).join(' ');
|
|
if (topic.startsWith(':')) {
|
|
topic = topic.slice(1); // Remove leading ':'
|
|
}
|
|
this.channelData.get(channel).topic = topic;
|
|
var username = this.usernames.get(nickname) || nickname;
|
|
var hostname = this.hostnames.get(nickname) || '';
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${hostname} TOPIC ${channel} :${topic}\r\n`, targetSocket);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} TOPIC ${channel} :${topic}\r\n`, socket);
|
|
break;
|
|
case 'PRIVMSG':
|
|
case 'NOTICE':
|
|
var targetUniqueId = parts[2];
|
|
var message = parts.slice(3).join(' ');
|
|
if (message.startsWith(':')) {
|
|
message = message.slice(1); // Remove leading ':'
|
|
}
|
|
var sourceSocket = this.findSocketByUniqueId(sourceUniqueId);
|
|
if (!sourceSocket) {
|
|
this.debugLog('warn', `No socket found for source unique ID ${sourceUniqueId}`);
|
|
break;
|
|
}
|
|
var sourceUsername = this.usernames.get(nickname) || nickname;
|
|
if (this.channelprefixes.some(prefix => targetUniqueId.startsWith(prefix))) {
|
|
// It's a channel, broadcast to all users in the channel except the source
|
|
if (this.channelData.has(targetUniqueId)) {
|
|
const users = this.channelData.get(targetUniqueId).users;
|
|
for (const user of users) {
|
|
const userSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (userSocket && userSocket.uniqueId !== sourceUniqueId) {
|
|
await this.sendThrottled(userSocket, [`:${nickname}!${sourceUsername}@${sourceSocket.host} ${srvCommand} ${targetUniqueId} :${message}\r\n`], 30);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} ${srvCommand} ${targetUniqueId} :${message}\r\n`, socket);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
var targetSocket = this.findSocketByUniqueId(targetUniqueId);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for target unique ID ${targetUniqueId}`);
|
|
break;
|
|
}
|
|
var targetNickname = this.getUsernameFromUniqueId(targetUniqueId);
|
|
if (message.startsWith(':')) {
|
|
message = message.slice(1); // Remove leading ':'
|
|
}
|
|
if (this.clientIsWebTV(targetSocket)) {
|
|
srvCommand = 'PRIVMSG';
|
|
}
|
|
await this.sendThrottled(targetSocket, [`:${nickname}!${sourceUsername}@${sourceSocket.host} ${srvCommand} ${targetNickname} :${message}\r\n`], 30);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} ${srvCommand} ${targetUniqueId} :${message}\r\n`, socket);
|
|
break;
|
|
case "WHOIS":
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', 'Invalid WHOIS command from server');
|
|
break;
|
|
}
|
|
var targetUniqueId = parts[2];
|
|
var targetSocket = this.findSocketByUniqueId(targetUniqueId);
|
|
if (!targetSocket) {
|
|
this.debugLog('warn', `No socket found for target unique ID ${targetUniqueId}`);
|
|
break;
|
|
}
|
|
var targetUniqueId = parts[2];
|
|
var whoisNick = this.findUserByUniqueId(targetUniqueId);
|
|
if (!whoisNick) {
|
|
whoisNick = parts[3].slice(1); // Remove leading ':'
|
|
}
|
|
const whoisSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s).toLowerCase() === whoisNick.toLowerCase());
|
|
if (whoisSocket) {
|
|
whoisNick = whoisSocket.nickname;
|
|
const whois_username = this.usernames.get(whoisNick);
|
|
var userinfo = this.userinfo.get(whoisNick) || whoisSocket.userinfo || '';
|
|
var output_lines = [];
|
|
output_lines.push(`:${this.serverId} 311 ${targetUniqueId} ${whoisNick} ${whois_username} ${whoisSocket.host} * :${userinfo}\r\n`);
|
|
if (this.awaymsgs.has(whoisNick)) {
|
|
output_lines.push(`:${this.serverId} 301 ${targetUniqueId} ${whoisNick} :${this.awaymsgs.get(whoisNick)}\r\n`);
|
|
}
|
|
const userChannels = [];
|
|
for (const [ch, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(whoisNick)) {
|
|
let prefix = '';
|
|
var chanops = this.channelData.get(ch).ops;
|
|
var chanhalfops = this.channelData.get(ch).halfops;
|
|
var chanvoices = this.channelData.get(ch).voices;
|
|
const modes = this.channelData.get(ch).modes;
|
|
if ((modes.includes('p') || modes.includes('s')) && (!this.channelData.has(ch) || !this.channelData.get(ch).users.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 (chanhalfops.has(whoisNick)) {
|
|
prefix = '%';
|
|
} else if (chanvoices.has(whoisNick)) {
|
|
prefix = '+';
|
|
}
|
|
userChannels.push(prefix + ch);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.serverId} 312 ${targetUniqueId} ${whoisNick} ${this.servername} :zefIRCd v${this.version}\r\n`);
|
|
if (this.isIRCOp(whoisNick)) {
|
|
output_lines.push(`:${this.serverId} 313 ${targetUniqueId} ${whoisNick} :is an IRC operator\r\n`);
|
|
}
|
|
if (usermodes && this.getUserModes(whoisNick).includes('s')) {
|
|
output_lines.push(`:${this.serverId} 671 ${targetUniqueId} ${whoisNick} :is using a secure connection\r\n`);
|
|
}
|
|
if (usermodes && this.getUserModes(whoisNick).includes('r')) {
|
|
output_lines.push(`:${this.serverId} 307 ${targetUniqueId} ${whoisNick} :is a registered nick\r\n`);
|
|
}
|
|
var now = this.getDate();
|
|
var userTimestamp = whoisSocket.lastspoke || now;
|
|
var idleTime = now - userTimestamp;
|
|
output_lines.push(`:${this.serverId} 317 ${targetUniqueId} ${whoisNick} ${idleTime} ${this.usersignontimestamps.get(whoisNick) || 0} :seconds idle, signon time\r\n`);
|
|
if (userChannels.length > 0) {
|
|
output_lines.push(`:${this.serverId} 319 ${targetUniqueId} ${whoisNick} :${userChannels.join(' ')}\r\n`);
|
|
}
|
|
output_lines.push(`:${this.serverId} 318 ${targetUniqueId} ${whoisNick} :End of /WHOIS list\r\n`);
|
|
await this.sendThrottled(socket, output_lines);
|
|
}
|
|
break;
|
|
case "SVSJOIN":
|
|
if (parts.length < 3) {
|
|
this.debugLog('warn', 'Invalid SVSJOIN command from server');
|
|
break;
|
|
}
|
|
var targetUniqueId = parts[2];
|
|
var channelName = this.findChannel(parts[3]);
|
|
var targetSocket = this.findSocketByUniqueId(targetUniqueId);
|
|
var username = this.usernames.get(targetSocket.nickname) || socket.nickname;
|
|
var hostname = this.hostnames.get(targetSocket.nickname) || '';
|
|
if (!channelName ||!this.channelData.has(channelName)) {
|
|
channelName = parts[3];
|
|
this.createChannel(channelName);
|
|
}
|
|
if (!this.channelData.get(channelName).users.has(targetSocket.nickname)) {
|
|
this.channelData.get(channelName).users.add(targetSocket.nickname);
|
|
}
|
|
this.broadcastChannelJoin(channelName, targetSocket);
|
|
//this.broadcastToAllServers(`:${sourceUniqueId} SVSJOIN ${channelName} ${targetUniqueId}\r\n`, socket);
|
|
var chan_modes = this.channelData.get(channelName).modes;
|
|
let modeString = '';
|
|
let modeParams = [];
|
|
for (const m of chan_modes) {
|
|
if (m === 'k' && this.channelData.get(channelName).key) {
|
|
modeString += 'k';
|
|
modeParams.push(this.channelData.get(channelName).key);
|
|
} else if (m === 'l' && this.channelData.get(channelName).limit) {
|
|
modeString += 'l';
|
|
modeParams.push(this.channelData.get(channelName).limit);
|
|
} else if (typeof m === 'string' && m.length === 1 && m !== 'k' && m !== 'l') {
|
|
modeString += m;
|
|
}
|
|
}
|
|
if (modeString.length > 0) {
|
|
this.safeWriteToSocket(targetSocket, `:${this.servername} 324 ${nickname} ${channelName} +${modeString}${modeParams.length ? ' ' + modeParams.join(' ') : ''}\r\n`);
|
|
}
|
|
this.broadcastToAllServers(`:${this.serverId} SJOIN ${this.getDate()} ${channelName} +${modeString}${modeParams.length ? ' ' + modeParams.join(' ') : ''} ${targetUniqueId}\r\n`);
|
|
break;
|
|
case "SVSMODE":
|
|
if (parts.length < 4) {
|
|
this.debugLog('warn', 'Invalid SVSMODE command from server');
|
|
break;
|
|
}
|
|
var targetUniqueId = parts[2];
|
|
var targetSocket = this.findSocketByUniqueId(targetUniqueId);
|
|
var targetNickname = targetSocket.nickname;
|
|
var modes = parts[4].split('');
|
|
let adding = true;
|
|
for (const char of modes.join('')) {
|
|
if (char === '+') {
|
|
adding = true;
|
|
} else if (char === '-') {
|
|
adding = false;
|
|
} else {
|
|
if (adding) {
|
|
this.setUserMode(targetNickname, char, true);
|
|
} else {
|
|
this.setUserMode(targetNickname, char, false);
|
|
}
|
|
}
|
|
}
|
|
var username = this.usernames.get(nickname);
|
|
var hostname = this.hostnames.get(nickname);
|
|
this.safeWriteToSocket(targetSocket, `:${nickname}!${username}@${hostname} MODE ${targetSocket.nickname} ${modes.join('')}\r\n`);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} SVSMODE ${targetUniqueId} ${modes.join('')}\r\n`, socket);
|
|
break;
|
|
default:
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
this.debugLog('warn', `Unhandled server command from ${sourceUniqueId} to ${targetUniqueId}: ${srvCommand} ${message}`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
async processSocketData(socket, data) {
|
|
if (socket.signedoff) {
|
|
return;
|
|
}
|
|
if (socket.upgrading_to_tls) {
|
|
socket.removeAllListeners()
|
|
socket.pause();
|
|
socket.on('error', (err) => {
|
|
this.debugLog('error', 'Error during TLS upgrade: ' + err.message);
|
|
this.terminateSession(socket, true);
|
|
});
|
|
|
|
if (Buffer.isBuffer(data) ? data[0] === 0x16 : data.charCodeAt(0) === 0x16) {
|
|
if (!this.enable_tls) {
|
|
// If SSL is not enabled, close the socket
|
|
this.safeWriteToSocket(socket, `:${this.servername} 421 * :TLS is not enabled on this server\r\n`);
|
|
this.terminateSession(socket, true);
|
|
return;
|
|
}
|
|
|
|
// SSL detected, upgrade socket to TLS
|
|
const keyBuffer = fs.readFileSync(this.wtvshared.parseConfigVars(this.irc_config.ssl_cert.key));
|
|
const certBuffer = fs.readFileSync(this.wtvshared.parseConfigVars(this.irc_config.ssl_cert.cert));
|
|
// Remove from this.clients if present
|
|
|
|
this.clients = this.clients.filter(c => c !== socket);
|
|
const secureSocket = new tls.TLSSocket(socket, {
|
|
isServer: true,
|
|
ALPNProtocols: ['irc'],
|
|
secureContext: tls.createSecureContext({
|
|
key: keyBuffer,
|
|
cert: certBuffer,
|
|
}),
|
|
});
|
|
socket.push(data);
|
|
|
|
secureSocket.on('error', (err) => {
|
|
this.terminateSession(secureSocket, true);
|
|
});
|
|
|
|
secureSocket.on('close', () => {
|
|
this.terminateSession(secureSocket, false);
|
|
});
|
|
|
|
// Only start processing after handshake is complete
|
|
secureSocket.on('secure', async () => {
|
|
this.debugLog('info', 'Secure connection (STARTTLS) established with '+ socket.remoteAddress);
|
|
socket.removeAllListeners('error');
|
|
await this.initializeSocket(secureSocket, true, socket);
|
|
// Remove the original socket from clients
|
|
this.clients = this.clients.filter(c => c !== socket);
|
|
this.clientpeak = Math.max(this.clientpeak, this.clients.length);
|
|
});
|
|
secureSocket.resume();
|
|
} else {
|
|
socket.resume();
|
|
this.safeWriteToSocket(socket, `:${this.servername} 421 * :Invalid TLS handshake\r\n`);
|
|
this.terminateSession(socket, true);
|
|
}
|
|
socket.upgrading_to_tls = false;
|
|
return;
|
|
}
|
|
// Ensure data is a string
|
|
if (typeof data !== 'string') {
|
|
if (Buffer.isBuffer(data)) {
|
|
data = data.toString('ascii');
|
|
} else if (data && typeof data.toString === 'function') {
|
|
data = data.toString();
|
|
} else {
|
|
return; // Invalid data, ignore
|
|
}
|
|
}
|
|
const lines = data.split(/\r\n|\n/).filter(Boolean);
|
|
for (let line of lines) {
|
|
if (this.debug) {
|
|
console.log(`> ${line}`);
|
|
}
|
|
if (socket.isserver) {
|
|
await this.processServerData(socket, line);
|
|
continue;
|
|
}
|
|
// Check for server prefix (e.g., :00B) and extract command
|
|
let prefix = null;
|
|
if (line.startsWith(':')) {
|
|
const spaceIdx = line.indexOf(' ');
|
|
|
|
if (spaceIdx > 0) {
|
|
prefix = line.slice(1, spaceIdx);
|
|
if (!socket.uniqueId) {
|
|
socket.uniqueId = prefix;
|
|
} else if (socket.uniqueId !== prefix) {
|
|
if (!socket.isserver) {
|
|
socket.uniqueId = prefix;
|
|
} else {
|
|
this.debugLog('warn', `Socket uniqueId mismatch: ${socket.uniqueId} !== ${prefix}`);
|
|
this.debugLog('warn', line);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
this.processServerData(socket, line);
|
|
continue;
|
|
}
|
|
|
|
// initial commands before we assign socket.isserver = true
|
|
const serverCommands = ['PASS', 'CAPAB', 'SERVER', 'SVINFO'];
|
|
const firstWord = line.trim().split(' ')[0].toUpperCase();
|
|
if (!prefix && serverCommands.includes(firstWord)) {
|
|
this.processServerData(socket, line);
|
|
continue;
|
|
}
|
|
|
|
|
|
const [command, ...params] = line.trim().split(' ');
|
|
switch (command.toUpperCase()) {
|
|
case 'OPER':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.oper_enabled) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 491 ${socket.nickname} :This server does not support IRC operators\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} OPER :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const [operName, operPassword] = params;
|
|
if (operName !== this.oper_username) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 491 ${socket.nickname} :No permission\r\n`);
|
|
this.debugLog('warn', `Invalid oper name attempt: ${operName} from ${socket.nickname} (${socket.username}@${socket.realhost})`);
|
|
break;
|
|
}
|
|
if (operPassword !== this.oper_password) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 464 ${socket.nickname} :Password incorrect\r\n`);
|
|
this.debugLog('warn', `Invalid oper password attempt from ${socket.nickname} (${socket.username}@${socket.realhost}) (using oper name ${operName})`);
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'o', true);
|
|
this.safeWriteToSocket(socket, `:${this.servername} 381 ${socket.nickname} :You are now an IRC operator\r\n`);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +o\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +o\r\n`);
|
|
this.debugLog('info', `IRC operator ${socket.nickname} (${socket.username}@${socket.realhost}) has logged in with oper name ${operName}`);
|
|
break;
|
|
case 'UPTIME':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
const uptime = this.getDate() - this.server_start_time;
|
|
const days = Math.floor(uptime / 86400);
|
|
const hours = Math.floor((uptime % 86400) / 3600);
|
|
const minutes = Math.floor((uptime % 3600) / 60);
|
|
const seconds = uptime % 60;
|
|
this.safeWriteToSocket(socket, `:${this.servername} 242 ${socket.nickname} :Server uptime is ${days} days, ${hours} hours, ${minutes} minutes, ${seconds} seconds\r\n`);
|
|
break;
|
|
case 'KICK':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
var channel = this.findChannel(params[0]);
|
|
var targetNick = this.findUser(params[1]);
|
|
if (!channel || !targetNick) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${params[1]} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
// Check if the user is a channel operator
|
|
if (this.channelData.get(channel).ops instanceof Set && this.channelData.get(channel).ops.has(socket.nickname)) {
|
|
// Allow kick
|
|
} else if (this.channelData.get(channel).halfops instanceof Set && this.channelData.get(channel).halfops.has(socket.nickname)) {
|
|
// Only allow kick if the target is NOT a channel operator
|
|
if (this.channelData.get(channel).ops instanceof Set && this.channelData.get(channel).ops.has(targetNick)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.nickname} ${channel} :You cannot kick a channel operator\r\n`);
|
|
break;
|
|
}
|
|
// Allow kick
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} KICK :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
socket.lastspoke = this.getDate();
|
|
|
|
|
|
if (!this.channelData.has(channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelData.get(channel).users.has(targetNick)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 441 ${socket.nickname} ${targetNick} :They aren't on that channel\r\n`);
|
|
break;
|
|
}
|
|
// Check if channel mode +Q (no kicks) is set
|
|
var chan_modes = this.channelData.get(channel).modes;
|
|
if (chan_modes.includes('Q')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.nickname} ${channel} :Cannot kick users, channel is +Q (no kicks allowed)\r\n`);
|
|
break;
|
|
}
|
|
this.channelData.get(channel).users.delete(targetNick);
|
|
var targetSocket = Array.from(this.clients).find(s => this.nicknames.get(s) === targetNick);
|
|
if (params.length > 2) {
|
|
let reason = params.slice(2).join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
this.safeWriteToSocket(targetSocket, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick} :${reason}\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick} :${reason}\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} KICK ${channel} ${targetSocket.uniqueId} :${reason}\r\n`);
|
|
break;
|
|
} else {
|
|
this.safeWriteToSocket(targetSocket, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick}\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} KICK ${channel} ${targetNick}\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} KICK ${channel} ${targetSocket.uniqueId}\r\n`);
|
|
}
|
|
break;
|
|
case 'TOPIC':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} TOPIC :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var channel = this.findChannel(params[0]);
|
|
if (!channel) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${params[0]} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var chan_modes = this.channelData.get(channel).modes;
|
|
if (chan_modes.includes('t')) {
|
|
if (this.channelData.get(channel).ops instanceof Set && this.channelData.get(channel).ops.has(socket.nickname)) {
|
|
// Allow topic
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
socket.lastspoke = this.getDate();
|
|
if (!this.channelData.has(channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
if (params.length > 1) {
|
|
var topic = params.slice(1).join(' ');
|
|
if (topic.startsWith(':')) {
|
|
topic = topic.slice(1);
|
|
}
|
|
this.channelData.get(channel).topic = topic;
|
|
this.safeWriteToSocket(socket, `:${this.servername} 332 ${socket.nickname} ${channel} :${topic}\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} TOPIC ${channel} :${topic}\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} TOPIC ${channel} :${topic}\r\n`);
|
|
} else {
|
|
const topic = this.channelData.get(channel).topic;
|
|
this.safeWriteToSocket(socket, `:${this.servername} 331 ${socket.nickname} ${channel} :${topic}\r\n`);
|
|
}
|
|
break;
|
|
case 'AWAY':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
socket.lastspoke = this.getDate();
|
|
if (params.length > 0) {
|
|
if (params.length > this.awaylen) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 417 ${socket.nickname} ${channel} :Away message is too long\r\n`);
|
|
break;
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 306 ${socket.nickname} :You are now marked as away\r\n`);
|
|
let awayMsg = params.join(' ');
|
|
if (awayMsg.startsWith(':')) {
|
|
awayMsg = awayMsg.slice(1);
|
|
}
|
|
this.awaymsgs.set(socket.nickname, awayMsg);
|
|
this.broadcastUserIfCap(socket, `:${socket.nickname}!${socket.username}@${socket.host} AWAY :${awayMsg}\r\n`, socket, 'away-notify');
|
|
this.broadcastToAllServers(`:${socket.uniqueId} AWAY :${awayMsg}\r\n`);
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 305 ${socket.nickname} :You are no longer marked as away\r\n`);
|
|
this.awaymsgs.delete(socket.nickname);
|
|
this.broadcastUserIfCap(socket, `:${socket.nickname}!${socket.username}@${socket.host} AWAY\r\n`, socket, 'away-notify');
|
|
this.broadcastToAllServers(`:${socket.uniqueId} AWAY\r\n`);
|
|
}
|
|
break;
|
|
case 'CAP':
|
|
// Attempt to map any client caps with our supported caps
|
|
if (params[0] && params[0].toUpperCase() === 'LS') {
|
|
const capsString = this.supported_client_caps.map(cap => cap.toLowerCase()).join(' ');
|
|
this.safeWriteToSocket(socket, `:${this.servername} CAP ${socket.uniqueId} LS :${capsString}\r\n`);
|
|
}
|
|
if (params[0] && params[0].toUpperCase() === 'REQ') {
|
|
socket.client_caps = params.slice(1).map(cap => {
|
|
if (cap.startsWith(':')) {
|
|
return cap.slice(1).toLowerCase();
|
|
}
|
|
return cap.toLowerCase();
|
|
});
|
|
var supportedCaps = this.supported_client_caps.filter(cap => socket.client_caps.includes(cap.toLowerCase()));
|
|
if (params.length > 1) {
|
|
// params[1] is the first cap, may be prefixed with ':'
|
|
// Remove ':' from first cap if present
|
|
let reqCaps = params.slice(1).map(cap => cap.startsWith(':') ? cap.slice(1).toLowerCase() : cap.toLowerCase());
|
|
// Only include supported caps, in the order requested
|
|
supportedCaps = reqCaps.filter(cap => this.supported_client_caps.includes(cap));
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} CAP ${socket.uniqueId} ACK :${supportedCaps.join(' ').toLowerCase()}\r\n`);
|
|
this.debugLog('info', `Client with uniqueId ${socket.uniqueId} requested capabilities: ${supportedCaps.join(', ')}`);
|
|
}
|
|
break;
|
|
case 'MODE':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var isChannel = true;
|
|
channel = this.findChannel(params[0]);
|
|
if (!channel) {
|
|
isChannel = false;
|
|
channel = this.findUser(params[0]);
|
|
}
|
|
if (!channel) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${params[0]} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelData.has(channel)) {
|
|
isChannel = false;
|
|
}
|
|
// Check if 'channel' is actually a user (nickname) instead of a channel name
|
|
let isUser = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (channel.startsWith(prefix)) {
|
|
isUser = false;
|
|
break;
|
|
} else {
|
|
isUser = true;
|
|
}
|
|
}
|
|
if (!isChannel && !isUser) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${channel} :No such channel or user\r\n`);
|
|
break;
|
|
}
|
|
const mode = params[1];
|
|
if (isUser) {
|
|
// User mode handling
|
|
if (!this.isIRCOp(socket.nickname) && channel !== socket.nickname) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 502 ${socket.nickname} :Cannot set modes on other users\r\n`);
|
|
} else {
|
|
|
|
var usermodes = this.getUserModes(channel);
|
|
if (!mode) {
|
|
// List user modes
|
|
if (usermodes.length === 0) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 324 ${socket.nickname} ${channel} :No modes set\r\n`);
|
|
} else {
|
|
const modes = usermodes.map(m => (m.startsWith('+') ? m : '+' + m)).join(' ');
|
|
this.safeWriteToSocket(socket, `:${this.servername} 324 ${socket.nickname} ${channel} :${modes}\r\n`);
|
|
}
|
|
} else if (mode.startsWith('+x')) {
|
|
if (usermodes.includes('x')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'x', true);
|
|
socket.host = this.filterHostname(socket, socket.realhost);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +x\r\n`);
|
|
if (socket.client_caps && socket.client_caps.includes('CHGHOST')) {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} CHGHOST ${socket.username} ${socket.host}\r\n`);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 396 ${socket.nickname} ${socket.host} :is now your visible host\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +x\r\n`);
|
|
} else if (mode.startsWith('-x')) {
|
|
if (!usermodes.includes('x')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'x', false);
|
|
socket.host = socket.realhost
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -x\r\n`);
|
|
if (socket.client_caps && socket.client_caps.includes('CHGHOST')) {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} CHGHOST ${socket.username} ${socket.host}\r\n`);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 396 ${socket.nickname} ${socket.host} :is now your visible host\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -x\r\n`);
|
|
} else if (mode.startsWith('+w')) {
|
|
if (usermodes.includes('w')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'w', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +w\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +w\r\n`);
|
|
} else if (mode.startsWith('-w')) {
|
|
if (!usermodes.includes('w')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'w', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -w\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -w\r\n`);
|
|
} else if (mode.startsWith('+c')) {
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `User ${socket.nickname} attempted to set +c mode without being an IRC operator`);
|
|
break;
|
|
}
|
|
if (usermodes.includes('c')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'c', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +c\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +c\r\n`);
|
|
} else if (mode.startsWith('-c')) {
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `User ${socket.nickname} attempted to unset +c mode without being an IRC operator`);
|
|
break;
|
|
}
|
|
if (!usermodes.includes('c')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'c', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -c\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -c\r\n`);
|
|
} else if (mode.startsWith('+i')) {
|
|
if (usermodes.includes('i')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'i', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +i\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +i\r\n`);
|
|
} else if (mode.startsWith('-i')) {
|
|
if (!usermodes.includes('i')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'i', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -i\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -i\r\n`);
|
|
} else if (mode.startsWith('+s')) {
|
|
if (usermodes.includes('s')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 's', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +s\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +s\r\n`);
|
|
} else if (mode.startsWith('-s')) {
|
|
if (!usermodes.includes('s')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 's', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -s\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -s\r\n`);
|
|
} else if (mode.startsWith('+B')) {
|
|
if (usermodes.includes('B')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'B', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +B\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +B\r\n`);
|
|
} else if (mode.startsWith('-B')) {
|
|
if (!usermodes.includes('B')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'B', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -B\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -B\r\n`);
|
|
} else if (mode.startsWith('+R')) {
|
|
if (usermodes.includes('R')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'R', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +R\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +R\r\n`);
|
|
} else if (mode.startsWith('-R')) {
|
|
if (!usermodes.includes('R')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'R', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -R\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -R\r\n`);
|
|
} else if (mode.startsWith('+z') || mode.startsWith('-z')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :is set by the server and cannot be changed\r\n`);
|
|
} else if (mode.startsWith('+r') || mode.startsWith('-r')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :is set by the server and cannot be changed\r\n`);
|
|
} else if (mode.startsWith('+Z')) {
|
|
if (!socket.secure) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :You must be secure to set this mode\r\n`);
|
|
break;
|
|
}
|
|
if (usermodes.includes('Z')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'Z', true);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} +Z\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} +Z\r\n`);
|
|
} else if (mode.startsWith('-Z')) {
|
|
if (!socket.secure) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :You must be secure to set this mode\r\n`);
|
|
break;
|
|
}
|
|
if (!usermodes.includes('Z')) {
|
|
break;
|
|
}
|
|
this.setUserMode(socket.nickname, 'Z', false);
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${socket.nickname} -Z\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} MODE ${socket.uniqueId} -Z\r\n`);
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 472 ${socket.nickname} ${mode.slice(1)} :is unknown mode char to me\r\n`);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
if (!mode) {
|
|
// List channel modes
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
let validPrefix = this.channelprefixes.some(prefix => channel.startsWith(prefix));
|
|
if (!validPrefix) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 476 ${socket.nickname} ${channel} :Bad channel mask\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelData.has(channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var chan_modes = this.channelData.get(channel).modes;
|
|
|
|
chan_modes = chan_modes.map(mode => {
|
|
if (typeof mode === 'string' && !mode.startsWith('+')) {
|
|
return '+' + mode;
|
|
}
|
|
return mode;
|
|
});
|
|
if (chan_modes.length > 0) {
|
|
var params2 = [];
|
|
// Batch all modes into a single 324 reply
|
|
var modeString =
|
|
chan_modes.map(m => {
|
|
// For modes with parameters (like k <key> or l<limit>)
|
|
if (typeof m === 'string' && (m === '+k' || m === '+l')) {
|
|
if (m === '+l') {
|
|
params2.push(this.channelData.get(channel).limit);
|
|
} else if (m === '+k') {
|
|
params2.push(this.channelData.get(channel).key);
|
|
}
|
|
return m.replace(/^\+/, '');
|
|
}
|
|
return m.replace(/^\+/, ''); // Remove leading '+' for other modes
|
|
})
|
|
.join('');
|
|
params2.forEach(param => {
|
|
if (param) {
|
|
modeString += ` ${param}`;
|
|
}
|
|
});
|
|
this.safeWriteToSocket(socket, `:${this.servername} 324 ${socket.nickname} ${channel} +${modeString}\r\n`);
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 324 ${socket.nickname} ${channel}\r\n`);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 329 ${socket.nickname} ${channel} ${this.channelData.get(channel).timestamp || M}\r\n`);
|
|
break;
|
|
} else {
|
|
// Process channel mode changes
|
|
this.processChannelModes(socket.nickname, channel, mode, params.slice(2), socket);
|
|
break;
|
|
}
|
|
case 'NICK':
|
|
var old_nickname = socket.nickname;
|
|
var new_nickname = params[0];
|
|
if (new_nickname.startsWith(':')) {
|
|
new_nickname = new_nickname.slice(1);
|
|
}
|
|
if (!new_nickname || new_nickname.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 431 * :No nickname\r\n`);
|
|
break;
|
|
}
|
|
if (new_nickname.length > this.nicklen) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 432 * ${new_nickname} :Erroneus nickname (too long)\r\n`);
|
|
break;
|
|
}
|
|
if (this.findUser(new_nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 433 * ${new_nickname} :Nickname is already in use\r\n`);
|
|
break;
|
|
}
|
|
for (const prefix of this.channelprefixes) {
|
|
if (new_nickname.startsWith(prefix)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 432 * ${new_nickname} :Erroneus nickname (you are not a channel)\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
for (let i = 0; i < new_nickname.length; i++) {
|
|
if (!this.allowed_nick_characters.includes(new_nickname[i])) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 432 * ${new_nickname} :Erroneus nickname (invalid character)\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
if (this.reservednicks && Array.isArray(this.reservednicks)) {
|
|
if (this.reservednicks.some(nick => nick.toLowerCase() === new_nickname.toLowerCase())) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 432 * ${new_nickname} :This nickname is reserved\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
// Prevent nick change if user is in any channel with +N mode
|
|
let inNoNickChangeChannel = false;
|
|
for (const [ch, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(socket.nickname)) {
|
|
const chanModes = this.channelData.get(ch).modes;
|
|
if (chanModes.includes('N')) {
|
|
inNoNickChangeChannel = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (inNoNickChangeChannel) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 447 * :You cannot change your nickname while in a +N (no nick change) channel\r\n`);
|
|
break;
|
|
}
|
|
|
|
if (!socket.nickname) {
|
|
// If no nickname is set, set it now
|
|
socket.nickname = new_nickname;
|
|
this.nicknames.set(socket, socket.nickname);
|
|
} else if (socket.nickname != new_nickname) {
|
|
this.processNickChange(socket, new_nickname);
|
|
if (socket.registered) {
|
|
this.safeWriteToSocket(socket, `:${old_nickname}!${socket.username}@${socket.host} NICK :${new_nickname}\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${old_nickname}!${socket.username}@${socket.host} NICK :${new_nickname}\r\n`, socket);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} NICK ${new_nickname} :${this.getDate()}\r\n`);
|
|
}
|
|
}
|
|
if (!socket.registered && socket.nickname && socket.username) {
|
|
var totalSockets = this.clients.length + this.servers.size;
|
|
var totalSockets = this.clients.length + this.servers.size;
|
|
this.socketpeak = Math.max(this.socketpeak, totalSockets);
|
|
this.usernames.set(socket.nickname, socket.username);
|
|
socket.lastspoke = this.getDate();
|
|
this.usersignontimestamps.set(socket.nickname, socket.timestamp);
|
|
this.doLogin(socket.nickname, socket);
|
|
}
|
|
break;
|
|
case 'USER':
|
|
if (params.length < 4) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} USER :Not enough parameters\r\n`);
|
|
this.addSocketError(socket);
|
|
break;
|
|
}
|
|
socket.username = params[0];
|
|
socket.userinfo = params.slice(3).join(' ').replace(/^:/, '');
|
|
if (!socket.registered && socket.nickname && socket.username) {
|
|
var totalSockets = this.clients.length + this.servers.size;
|
|
this.socketpeak = Math.max(this.socketpeak, totalSockets);
|
|
this.usernames.set(socket.nickname, socket.username);
|
|
socket.lastspoke = this.getDate();
|
|
this.usersignontimestamps.set(socket.nickname, socket.timestamp);
|
|
this.doLogin(socket.nickname, socket);
|
|
}
|
|
break;
|
|
case 'JOIN':
|
|
var key = null;
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (params.length == 2) {
|
|
key = params[1];
|
|
}
|
|
if (channel.includes(',')) {
|
|
var channels = channel.split(',');
|
|
} else {
|
|
var channels = [channel];
|
|
}
|
|
for (var ch of channels) {
|
|
// Simulate a JOIN command for each channel
|
|
for (let i = 0; i < ch.length; i++) {
|
|
if (i == 0 && !this.channelprefixes.includes(ch[0])) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${ch} :No such channel\r\n`);
|
|
return;
|
|
}
|
|
if (this.channelprefixes.includes(ch[1])) {
|
|
ch = ch.slice(1); // Remove double prefix
|
|
}
|
|
for (let j = 0; j < ch.slice(1).length; j++) {
|
|
if (!this.allowed_chan_characters.includes(ch.slice(1)[j])) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${ch} :No such channel\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (this.getUserChannelCount(socket.nickname) >= this.channellimit) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 405 ${socket.nickname} ${ch} :Too many channels\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
var validChannel = false;
|
|
this.channelprefixes.forEach(prefix => {
|
|
if (ch.startsWith(prefix)) {
|
|
validChannel = true;
|
|
}
|
|
});
|
|
if (!validChannel) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${ch} :No such channel\r\n`);
|
|
continue; // Skip this channel
|
|
}
|
|
if (ch.length < 2 || ch.length > this.channellen) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${ch} :No such channel\r\n`);
|
|
continue; // Skip this channel
|
|
}
|
|
let foundChannel = null;
|
|
for (const existingChannel of this.channelData.keys()) {
|
|
if (existingChannel.toLowerCase() === ch.toLowerCase()) {
|
|
foundChannel = existingChannel;
|
|
break;
|
|
}
|
|
}
|
|
if (foundChannel) {
|
|
ch = foundChannel;
|
|
} else {
|
|
this.createChannel(ch, socket.nickname);
|
|
}
|
|
|
|
var joinLine = '';
|
|
if (key) {
|
|
joinLine = `JOIN ${ch} ${key}`;
|
|
} else {
|
|
joinLine = `JOIN ${ch}`;
|
|
}
|
|
const [command, ...params] = joinLine.trim().split(' ');
|
|
|
|
const chmodes = this.channelData.get(ch).modes;
|
|
if (this.isBanned(ch, socket)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 474 ${socket.nickname} ${ch} :Cannot join channel (+b)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
// Check if the user is in too many channels
|
|
if (chmodes.includes('k')) {
|
|
const channelKey = this.channelData.get(ch).key;
|
|
// The key must be provided as the second parameter in the JOIN command
|
|
// params[1] is the key for the first channel, params[2] for the second, etc.
|
|
// For simplicity, assume only one channel per JOIN or the key is always params[1]
|
|
const providedKey = params[1];
|
|
if (!providedKey || providedKey !== channelKey) {
|
|
var code = (this.clientIsWebTV(socket) ? 474 : 475);
|
|
this.safeWriteToSocket(socket, `:${this.servername} ${code} ${socket.nickname} ${ch} :Cannot join channel (+k)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (chmodes.includes('l')) {
|
|
// Channel has a user limit (+l)
|
|
const limit = this.channelData.get(ch).limit;
|
|
if (limit !== null && this.channelData.get(ch).users.size >= limit) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 471 ${socket.nickname} ${ch} :Cannot join channel (+l)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (chmodes.includes('i')) {
|
|
// Channel is invite-only (+i)
|
|
const invited = this.channelData.get(ch).inviteexceptions;
|
|
let isInvited = false;
|
|
for (const inviteMask of invited) {
|
|
isInvited = checkMask(inviteMask, socket);
|
|
if (isInvited) {
|
|
break; // Stop checking if we found a match
|
|
}
|
|
}
|
|
if (!this.channelData.get(ch).invites.has(socket.nickname) && !isInvited) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 473 ${socket.nickname} ${ch} :Cannot join channel (+i)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
if (!this.channelData.get(ch).invites.has(socket.nickname)) {
|
|
this.channelData.get(ch).invites.delete(socket.nickname);
|
|
}
|
|
}
|
|
if (chmodes.includes('O')) {
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
var code = (this.clientIsWebTV(socket) ? 474 : 404);
|
|
this.safeWriteToSocket(socket, `:${this.servername} ${code} ${socket.nickname} ${ch} :Cannot join channel (+O)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (chmodes.includes('S')) {
|
|
// Channel is restricted to users with a secure connection (+S)
|
|
if (!socket.secure) {
|
|
var code = (this.clientIsWebTV(socket) ? 474 : 468);
|
|
this.safeWriteToSocket(socket, `:${this.servername} ${code} ${socket.nickname} ${ch} :Cannot join channel (+S)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (chmodes.includes('R')) {
|
|
// Channel is registered users only (+R)
|
|
if (!this.getUserModes(socket.nickname).includes('r')) {
|
|
var code = (this.clientIsWebTV(socket) ? 474 : 447);
|
|
this.safeWriteToSocket(socket, `:${this.servername} ${code} ${socket.nickname} ${ch} :Cannot join channel (+R)\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
|
|
socket.lastspoke = this.getDate();
|
|
if (!this.channelData.has(ch)) {
|
|
this.createChannel(ch, socket.nickname);
|
|
}
|
|
var channelObj = this.channelData.get(ch);
|
|
channelObj.users.add(socket.nickname);
|
|
this.broadcastChannelJoin(ch, socket);
|
|
let modes = channelObj.modes;
|
|
let prefix = '';
|
|
if (channelObj.ops.has(socket.nickname)) {
|
|
if (socket.client_caps.includes('multi-prefix')) {
|
|
prefix += '@';
|
|
} else {
|
|
prefix = '@';
|
|
}
|
|
}
|
|
if (channelObj.halfops.has(socket.nickname)) {
|
|
if (socket.client_caps.includes('multi-prefix')) {
|
|
prefix += '%';
|
|
} else {
|
|
if (!prefix) {
|
|
prefix = '%';
|
|
}
|
|
}
|
|
}
|
|
if (channelObj.voices.has(socket.nickname)) {
|
|
if (socket.client_caps.includes('multi-prefix')) {
|
|
prefix += '+';
|
|
} else {
|
|
if (!prefix) {
|
|
prefix = '+';
|
|
}
|
|
}
|
|
}
|
|
this.broadcastToAllServers(`:${this.serverId} SJOIN ${this.getDate()} ${ch} +${modes.join('')} :${prefix}${socket.uniqueId}\r\n`);
|
|
if (channelObj.topic) {
|
|
const topic = channelObj.topic;
|
|
if (topic) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 332 ${socket.nickname} ${ch} :${topic}\r\n`);
|
|
}
|
|
}
|
|
var users = this.getUsersInChannel(ch);
|
|
var output_lines = [];
|
|
var prefixRegex = new RegExp(`^[${this.supported_prefixes[1]}]`);
|
|
if (users.length > 0) {
|
|
users.sort((a, b) => {
|
|
// Remove any prefixes for comparison
|
|
const cleanA = a.replace(prefixRegex, '');
|
|
const cleanB = b.replace(prefixRegex, '');
|
|
// Get privilege for each user
|
|
var channelObj = this.channelData.get(ch);
|
|
function getPriv(user) {
|
|
if (channelObj.ops.has(user)) return 1;
|
|
if (channelObj.halfops.has(user)) return 2;
|
|
if (channelObj.voices.has(user)) return 3;
|
|
return 4;
|
|
}
|
|
const privA = getPriv(cleanA);
|
|
const privB = getPriv(cleanB);
|
|
if (privA !== privB) return privA - privB;
|
|
// If same privilege, sort alphabetically (case-insensitive)
|
|
return cleanA.localeCompare(cleanB, undefined, { sensitivity: 'base' });
|
|
});
|
|
if (socket.client_caps.includes('userhost-in-names')) {
|
|
const userHosts = users.map(user => {
|
|
var nick = this.findUser(user.replace(prefixRegex, ''));
|
|
var username = this.usernames.get(nick) || 'unknown';
|
|
var host = this.hostnames.get(nick) || 'unknown';
|
|
return `${user}!${username}@${host}`;
|
|
});
|
|
output_lines.push(`:${this.servername} 353 ${socket.nickname} = ${ch} :${userHosts.join(' ')}\r\n`);
|
|
} else {
|
|
output_lines.push(`:${this.servername} 353 ${socket.nickname} = ${ch} :${users.join(' ')}\r\n`);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.servername} 366 ${socket.nickname} ${ch} :End of /NAMES list\r\n`);
|
|
await this.sendThrottled(socket, output_lines, 0);
|
|
if (this.isReservedChannel(ch)) {
|
|
if (this.checkIfReservedChannelOp(socket, ch)) {
|
|
this.channelData.get(ch).ops.add(socket.nickname);
|
|
this.broadcastChannel(ch, `:${socket.nickname}!${socket.username}@${socket.host} MODE ${ch} +o ${socket.nickname}\r\n`);
|
|
}
|
|
}
|
|
var awaymsg = this.awaymsgs.get(socket.nickname);
|
|
if (awaymsg) {
|
|
this.broadcastUserIfCap(socket, `:${socket.nickname}!${socket.username}@${socket.host} AWAY :${awaymsg}\r\n`, socket, 'away-notify');
|
|
}
|
|
if (this.clientIsWebTV(socket) && this.enable_webtv_command_hacks) {
|
|
var output_lines = [];
|
|
var channelObj = this.channelData.get(ch);
|
|
output_lines.push("You have joined " + ch);
|
|
output_lines.push("Current channel modes: +" + channelObj.modes.join(''));
|
|
let isOp = channelObj.ops.has(socket.nickname);
|
|
let isHalfOp = channelObj.halfops.has(socket.nickname);
|
|
let isVoice = channelObj.voices.has(socket.nickname);
|
|
if (isOp) {
|
|
output_lines.push("You are a channel operator (@) in " + ch);
|
|
} else if (isHalfOp) {
|
|
output_lines.push("You are a channel half-operator (%) in " + ch);
|
|
} else if (isVoice) {
|
|
output_lines.push("You are voiced (+) in " + ch);
|
|
}
|
|
this.sendWebTVSpoofedActionTo(socket, ch, output_lines);
|
|
}
|
|
}
|
|
break;
|
|
case 'NAMES':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} NAMES :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
channel = this.findChannel(params[0]);
|
|
if (!channel || !this.channelData.has(channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var users = this.getUsersInChannel(channel);
|
|
var output_lines = [];
|
|
if (users.length > 0) {
|
|
if (socket.client_caps.includes('userhost-in-names')) {
|
|
const userHosts = users.map(user => {
|
|
var prefixRegex = new RegExp(`^[${this.supported_prefixes[1]}]`);
|
|
var nick = this.findUser(user.replace(prefixRegex, ''));
|
|
var username = this.usernames.get(nick) || 'unknown';
|
|
var host = this.hostnames.get(nick) || 'unknown';
|
|
return `${user}!${username}@${host}`;
|
|
});
|
|
output_lines.push(`:${this.servername} 353 ${socket.nickname} = ${ch} :${userHosts.join(' ')}\r\n`);
|
|
} else {
|
|
output_lines.push(`:${this.servername} 353 ${socket.nickname} = ${ch} :${users.join(' ')}\r\n`);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.servername} 366 ${socket.nickname} ${channel} :End of /NAMES list\r\n`);
|
|
this.sendThrottled(socket, output_lines);
|
|
break;
|
|
case 'PART':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
channel = this.findChannel(params[0]);
|
|
if (!this.channelData.has(channel) || !this.channelData.get(channel).users.has(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 442 ${socket.nickname} ${channel} :You're not on that channel\r\n`);
|
|
break;
|
|
}
|
|
if (this.channelData.get(channel).ops.has(socket.nickname)) {
|
|
this.channelData.get(channel).ops.delete(socket.nickname);
|
|
}
|
|
if (this.channelData.get(channel).halfops.has(socket.nickname)) {
|
|
this.channelData.get(channel).halfops.delete(socket.nickname);
|
|
}
|
|
if (this.channelData.get(channel).voices.has(socket.nickname)) {
|
|
this.channelData.get(channel).voices.delete(socket.nickname);
|
|
}
|
|
socket.lastspoke = this.getDate();
|
|
if (params.length == 2) {
|
|
let reason = params.join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${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 {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} PART ${channel}\r\n`);
|
|
this.broadcastChannel(channel, `:${socket.nickname}!${socket.username}@${socket.host} PART ${channel}\r\n`, socket);
|
|
}
|
|
if (this.channelData.has(channel)) {
|
|
this.channelData.get(channel).users.delete(socket.nickname);
|
|
if (this.channelData.get(channel).users.size === 0) {
|
|
this.deleteChannel(channel);
|
|
}
|
|
}
|
|
this.broadcastToAllServers(`:${socket.uniqueId} PART ${channel}\r\n`);
|
|
break;
|
|
case 'INVITE':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} INVITE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const invitee = this.findUser(params[0]);
|
|
channel = this.findChannel(params[1]);
|
|
if (!invitee || !channel) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${params[0]} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelData.has(channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelData.get(channel).ops.has(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.socket.nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
if (!this.nicknames.has(socket)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${invitee} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
const inviteeSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === invitee);
|
|
if (!inviteeSocket) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${invitee} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelData.has(channel) || !this.channelData.get(channel).users.has(invitee)) {
|
|
if (this.channelData.get(channel).modes.includes('V')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.nickname} ${channel} :Cannot invite users, channel is +V (no invites allowed)\r\n`);
|
|
break;
|
|
}
|
|
const invited = this.channelData.get(channel).invites;
|
|
invited.add(invitee);
|
|
this.safeWriteToSocket(socket, `:${this.servername} 341 ${socket.nickname} ${invitee} ${channel} :Invited to channel\r\n`);
|
|
this.broadcastUserIfCapAndChanOp(socket, `:${socket.nickname}!${socket.username}@${socket.host} INVITE ${invitee} ${channel}`, socket, 'invite-notify', channel);
|
|
this.safeWriteToSocket(inviteeSocket, `:${this.servername} 341 ${socket.nickname} ${invitee} ${channel} :You have been invited to join ${channel}\r\n`);
|
|
break;
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 443 ${socket.nickname} ${invitee} ${channel} :${invitee} is already on that channel\r\n`);
|
|
break;
|
|
}
|
|
case 'LIST':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
} let channelsToList;
|
|
if (params.length > 0 && params[0]) {
|
|
channelsToList = params[0].split(',').filter(ch => ch.length > 0);
|
|
} else {
|
|
channelsToList = Array.from(this.channelData.keys());
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 321 ${socket.nickname} :Channel :Users :Topic\r\n`);
|
|
for (const channel of channelsToList) {
|
|
if (!this.channelprefixes.some(prefix => channel.startsWith(prefix))) {
|
|
continue; // Skip invalid channel names
|
|
}
|
|
var modes = this.channelData.get(channel).modes;
|
|
if (modes.includes('p')) {
|
|
if (!this.channelData.has(channel) || !this.channelData.get(channel).users.has(socket.nickname)) {
|
|
continue; // Skip if user is not in the channel
|
|
}
|
|
}
|
|
if (modes.includes('s')) {
|
|
if (!this.channelData.has(channel) || !this.channelData.get(channel).users.has(socket.nickname)) {
|
|
continue; // Skip if user is not in the channel
|
|
}
|
|
}
|
|
const users = this.getUsersInChannel(channel);
|
|
const topic = this.channelData.get(channel).topic;
|
|
this.safeWriteToSocket(socket, `:${this.servername} 322 ${socket.nickname} ${channel} ${users.length} :${topic}\r\n`);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 323 ${socket.nickname} :End of /LIST\r\n`);
|
|
break;
|
|
case 'WHO':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!params[0]) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} WHO :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const target = this.findChannel(params[0]);
|
|
if (!target) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${params[0]} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
|
|
var isChannel = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (target.startsWith(prefix)) {
|
|
isChannel = true;
|
|
break;
|
|
}
|
|
}
|
|
if (isChannel) {
|
|
// WHO for channel
|
|
const modes = this.channelData.get(target).modes
|
|
if ((modes.includes('p') || modes.includes('s')) && (!this.channelData.has(target) || !this.channelData.get(target).users.has(socket.nickname))) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
break;
|
|
}
|
|
if (this.channelData.has(target)) {
|
|
const users = this.channelData.get(target).users;
|
|
for (const user of users) {
|
|
let cleanUser = user;
|
|
if (!user) {
|
|
continue; // Skip empty users
|
|
}
|
|
if (['@', '%', '+'].includes(cleanUser[0])) {
|
|
cleanUser = cleanUser.slice(1);
|
|
}
|
|
var hostname = this.hostnames.get(cleanUser);
|
|
var username = this.usernames.get(cleanUser) || cleanUser;
|
|
var whoisSocket = Array.from(this.nicknames.keys()).find(
|
|
s => this.nicknames.get(s).toLowerCase() === cleanUser.toLowerCase()
|
|
);
|
|
if (!whoisSocket) {
|
|
// try to get server socket
|
|
whoisSocket = this.getRemoteServerUserSocket(cleanUser);
|
|
}
|
|
var userSecure = false;
|
|
if (whoisSocket) {
|
|
userSecure = whoisSocket.secure;
|
|
}
|
|
let prefix = '';
|
|
var channelObj = this.channelData.get(target);
|
|
if (channelObj.ops.has(cleanUser)) {
|
|
prefix = '@';
|
|
} else if (channelObj.halfops.has(cleanUser)) {
|
|
prefix = '%';
|
|
} else if (channelObj.voices.has(cleanUser)) {
|
|
prefix = '+';
|
|
}
|
|
var userinfo = this.userinfo.get(cleanUser) || cleanUser;
|
|
var flags = `${(this.awaymsgs.has(cleanUser)) ? 'G' : 'H'}${(this.isIRCOp(cleanUser)) ? '*' : ''}${(userSecure) ? 'z' : ''}`
|
|
var secondsIdle = (this.getDate() - whoisSocket.lastspoke);
|
|
this.safeWriteToSocket(socket, `:${this.servername} 352 ${socket.nickname} ${target} ${username} ${hostname} ${this.servername} ${cleanUser} ${flags} 0 ${secondsIdle} 0 :${userinfo}\r\n`);
|
|
}
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
} else {
|
|
// WHO for nickname
|
|
var output_lines = [];
|
|
if (target.includes('*') || target.includes('?')) {
|
|
// Wildcard mask search for nicknames
|
|
const maskRegex = new RegExp('^' + target.replace(/\*/g, '.*').replace(/\?/g, '.') + '$', 'i');
|
|
let found = false;
|
|
for (const [sock, nick] of this.nicknames.entries()) {
|
|
if (maskRegex.test(nick)) {
|
|
if (this.getUserModes(nick).includes('s')) {
|
|
continue;
|
|
}
|
|
found = true;
|
|
output_lines.push(`:${this.servername} 352 ${socket.nickname} * ${nick} ${sock.host} ${this.servername} ${nick} ${(this.awaymsgs.has(nick)) ? 'G' : 'H'}${(sock.secure) ? 'z' : ''} :0 ${sock.userinfo}\r\n`);
|
|
}
|
|
}
|
|
if (!found) {
|
|
output_lines.push(`:${this.servername} 401 ${socket.nickname} ${target} :No such nick/channel\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
this.sendThrottled(socket, output_lines);
|
|
break;
|
|
} else {
|
|
var whoisSocket = Array.from(this.nicknames.keys()).find(
|
|
s => this.nicknames.get(s).toLowerCase() === target.toLowerCase()
|
|
);
|
|
if (whoisSocket) {
|
|
if (this.getUserModes(whoisSocket.nickname).includes('s')) {
|
|
// Skip invisible users
|
|
output_lines.push(`:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
break;
|
|
}
|
|
output_lines.push(`:${this.servername} 352 ${socket.nickname} * ${whoisSocket.nickname} ${whoisSocket.host} ${this.servername} ${whoisSocket.nickname} ${(this.awaymsgs.has(target)) ? 'G' : 'H'}${(whoisSocket.secure) ? 'z' : ''} :0 ${whoisSocket.userinfo}\r\n`);
|
|
} else {
|
|
output_lines.push(`:${this.servername} 401 ${socket.nickname} ${target} :No such nick/channel\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 315 ${socket.nickname} ${target} :End of /WHO list\r\n`);
|
|
this.sendThrottled(socket, output_lines);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 'PRIVMSG':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
socket.lastspoke = this.getDate();
|
|
if (params[0]) {
|
|
const target = params[0];
|
|
let targets = target.includes(',') ? target.split(',') : [target];
|
|
if (targets.length > this.maxtargets) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 407 ${socket.nickname} :Too many targets. Maximum allowed is ${this.maxtargets}\r\n`);
|
|
return;
|
|
}
|
|
for (var t of targets) {
|
|
let isChan = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (t.startsWith(prefix)) {
|
|
isChan = true;
|
|
t = this.findChannel(t);
|
|
break;
|
|
}
|
|
}
|
|
if (!t) {
|
|
t = this.findUser(t);
|
|
isChan = false;
|
|
}
|
|
if (!t) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${t} :No such nick/channel\r\n`);
|
|
continue;
|
|
}
|
|
var channelObj = this.channelData.get(t);
|
|
var msg = line.slice(line.indexOf(':', 1) + 1);
|
|
if (isChan) {
|
|
// Channel message
|
|
if (channelObj.modes.includes('m')) {
|
|
// Channel is moderated (+m)
|
|
|
|
if (!channelObj.voices.has(socket.nickname && !channelObj.ops.has(socket.nickname) && !channelObj.halfops.has(socket.nickname))) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+m)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('n')) {
|
|
// Channel is no-external-messages (+n)
|
|
if (!channelObj.users.has(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+n)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('c')) {
|
|
// Block all IRC control codes (ASCII 0x00-0x1F except \r and \n)
|
|
if (/[\x00-\x09\x0B\x0C\x0E-\x1F]/.test(msg)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+c)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('C')) {
|
|
// channel blocks CTCP, detect if the message contains CTCPS
|
|
if (msg.includes('\x01')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+C)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('O')) {
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+O)\r\n`);
|
|
}
|
|
}
|
|
}
|
|
if (isChan) {
|
|
if (!this.channelData.has(t)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${t} :No such channel\r\n`);
|
|
continue;
|
|
}
|
|
if (this.clientIsWebTV(socket) && msg.startsWith('/') && this.enable_webtv_command_hacks) {
|
|
var wtvcmd = msg.slice(1).split(' ');
|
|
if (wtvcmd[0].length > 0) {
|
|
if (this.supported_webtv_command_hacks.includes(wtvcmd[0].toUpperCase())) {
|
|
var wtvstr = `${wtvcmd[0].toUpperCase()} ${wtvcmd.splice(1).join(' ')}\r\n`;
|
|
this.processSocketData(socket, wtvstr);
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
this.broadcastChannel(t, `:${socket.nickname}!${socket.username}@${socket.host} PRIVMSG ${t} :${msg}\r\n`, socket);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} PRIVMSG ${t} :${msg}\r\n`);
|
|
} else {
|
|
if (this.awaymsgs.has(t)) {
|
|
this.safeWriteToSocket(socket, `:${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).toLowerCase() === t.toLowerCase());
|
|
if (!targetSock) {
|
|
// check remote servers
|
|
targetSock = this.getRemoteServerUserSocket(t);
|
|
if (targetSock) {
|
|
const sender_id = this.getUniqueId(socket.nickname);
|
|
const unique_id = this.getUniqueId(t);
|
|
targetSock.write(`:${sender_id} PRIVMSG ${unique_id} :${msg}\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (!targetSock) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${t} :No such nick/channel\r\n`);
|
|
continue;
|
|
}
|
|
var targetUserModes = this.getUserModes(t);
|
|
var usermodes = this.getUserModes(socket.nickname);
|
|
if (targetUserModes.includes('R')) {
|
|
if (!usermodes.includes('r')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 447 ${socket.nickname} ${t} :Cannot send to user (+R)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (targetUserModes.includes('Z') && !socket.secure) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to user (+Z)\r\n`);
|
|
continue;
|
|
}
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
if (usermodes.includes('Z') && !targetUserModes.includes('Z')) {
|
|
this.safeWriteToSocket(socket, `:${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 ${targetSock.nickname} :${msg}\r\n`);
|
|
if (socket.client_caps.includes('echo-message')) {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} PRIVMSG ${targetSock.nickname} :${msg}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
break;
|
|
case 'NOTICE':
|
|
if (!this.checkRegistered(socket, false, true) && params[0] !== this.servername) {
|
|
break;
|
|
}
|
|
socket.lastspoke = this.getDate();
|
|
if (params[0]) {
|
|
const target = params[0];
|
|
let targets = target.includes(',') ? target.split(',') : [target];
|
|
if (targets.length > this.maxtargets) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 407 ${socket.nickname} :Too many targets. Maximum allowed is ${this.maxtargets}\r\n`);
|
|
return;
|
|
}
|
|
for (const t of targets) {
|
|
let isChan = false;
|
|
if (t === this.servername) {
|
|
// client responding to a system message
|
|
var msg = line.slice(line.indexOf(':', 1) + 1);
|
|
if (msg.startsWith('\x01VERSION')) {
|
|
socket.client_version = msg.replace('\x01VERSION ', '').replace('\x01', '');
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
for (const prefix of this.channelprefixes) {
|
|
if (t.startsWith(prefix)) {
|
|
isChan = true;
|
|
t = this.findChannel(t);
|
|
break;
|
|
}
|
|
}
|
|
if (!t) {
|
|
t = this.findUser(t);
|
|
isChan = false;
|
|
}
|
|
if (!t) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${t} :No such nick/channel\r\n`);
|
|
continue;
|
|
}
|
|
var channelObj = this.channelData.get(t);
|
|
var msg = line.slice(line.indexOf(':', 1) + 1);
|
|
if (isChan) {
|
|
if (!this.channelData.has(t)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 403 ${socket.nickname} ${t} :No such channel\r\n`);
|
|
continue;
|
|
}
|
|
// Channel notice
|
|
if (channelObj.modes.includes('n')) {
|
|
// Channel is no-external-messages (+n)
|
|
if (!this.channelData.get(t).users.has(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+n)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('c')) {
|
|
// channel blocks color, detect if the message contains color codes
|
|
if (/[\x00-\x09\x0B\x0C\x0E-\x1F]/.test(msg)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+c)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('C')) {
|
|
// channel blocks CTCP, detect if the message contains CTCPS
|
|
if (msg.includes('\x01')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+C)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('T')) {
|
|
if (
|
|
!channelObj.ops.has(socket.nickname) &&
|
|
!channelObj.halfops.has(socket.nickname) &&
|
|
!channelObj.voices.has(socket.nickname)
|
|
) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${socket.nickname} ${t} :Cannot send to channel (+T)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (channelObj.modes.includes('O')) {
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} ${t} :Cannot send to channel (+O)\r\n`);
|
|
}
|
|
}
|
|
this.broadcastChannel(t, `:${socket.nickname}!${socket.username}@${socket.host} NOTICE ${t} :${msg}\r\n`, socket);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} NOTICE ${t} :${msg}\r\n`);
|
|
} else {
|
|
// Assume it's a nick, check if it exists
|
|
var targetSock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s).toLowerCase() === t.toLowerCase());
|
|
if (!targetSock) {
|
|
// check remote servers
|
|
targetSock = this.getRemoteServerUserSocket(t);
|
|
if (targetSock) {
|
|
const sender_id = this.getUniqueId(socket.nickname);
|
|
const unique_id = this.getUniqueId(t);
|
|
targetSock.write(`:${sender_id} PRIVMSG ${unique_id} :${msg}\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (!targetSock) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${t} :No such nick/channel\r\n`);
|
|
continue;
|
|
}
|
|
var targetUserModes = this.getUserModes(t);
|
|
var usermodes = this.getUserModes(socket.nickname);
|
|
if (targetUserModes.includes('R')) {
|
|
if (!usermodes.includes('r')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 447 ${socket.nickname} ${t} :Cannot send to user (+R)\r\n`);
|
|
continue;
|
|
}
|
|
}
|
|
if (targetUserModes.includes('Z') && !socket.secure) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to user (+Z)\r\n`);
|
|
continue;
|
|
}
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
if (usermodes.includes('Z') && !targetUserModes.includes('Z')) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 484 ${socket.nickname} ${t} :Cannot send to non-+Z user while you are +Z\r\n`);
|
|
continue;
|
|
}
|
|
var cmd = 'NOTICE';
|
|
if (this.clientIsWebTV(targetSock)) {
|
|
cmd = 'PRIVMSG'; // WebTV clients do not support NOTICE, use PRIVMSG instead
|
|
}
|
|
targetSock.write(`:${socket.nickname}!${socket.username}@${socket.host} ${cmd} ${targetSock.nickname} :${msg}\r\n`);
|
|
if (socket.client_caps.includes('echo-message')) {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} PRIVMSG ${targetSock.nickname} :${msg}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
break;
|
|
case 'SYSTEM':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `SYSTEM command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
var type = params[0] ? params[0].toUpperCase() : '';
|
|
var output_lines = [];
|
|
switch (type) {
|
|
case "HELP":
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :Available commands:\r\n`);
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} : HELP - Show this help message\r\n`);
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} : LOG - Show server log data\r\n`);
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} : KLINES - Show KLINE data\r\n`);
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} : CHANNELS - Show channel data\r\n`);
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :End of help data\r\n`);
|
|
break;
|
|
case "LOG":
|
|
this.logdata.forEach((logEntry) => {
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :${logEntry}\r\n`);
|
|
});
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :End of log data\r\n`);
|
|
break;
|
|
case "KLINES":
|
|
if (this.klines.length === 0) {
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :No KLINES found\r\n`);
|
|
break;
|
|
}
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :KLINE data:\r\n`);
|
|
for (const kline of this.klines) {
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :Mask: ${kline.mask}, Expiry: ${kline.expiry}, Reason: ${kline.reason}\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 200 ${socket.nickname} :End of KLINE data\r\n`);
|
|
break;
|
|
case 'CHANNELS':
|
|
for (const [channelName, channelObj] of this.channelData.entries()) {
|
|
output_lines.push(`:${this.servername} 200 :Channel: ${channelName}\r\n`);
|
|
for (const [key, value] of Object.entries(channelObj)) {
|
|
let valStr;
|
|
if (value instanceof Set) {
|
|
valStr = Array.from(value).join(', ');
|
|
} else if (typeof value === 'object' && value !== null) {
|
|
valStr = JSON.stringify(value);
|
|
} else {
|
|
valStr = String(value);
|
|
}
|
|
output_lines.push(`:${this.servername} 200 : ${key}: ${valStr}\r\n`);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
output_lines.push(`:${this.servername} 500 ${socket.nickname} :Unknown debug command\r\n`);
|
|
break;
|
|
}
|
|
this.sendThrottled(socket, output_lines);
|
|
break;
|
|
case 'PING':
|
|
this.safeWriteToSocket(socket, `PONG ${params.join(' ')}\r\n`);
|
|
break;
|
|
case 'KLINE':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `KLINE command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} KLINE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var targetMask = params[0];
|
|
var expiry = this.getDate() + 3600;
|
|
var reasonParam = 1;
|
|
if (!isNaN(parseInt(targetMask))) {
|
|
expiry = this.getDate() + parseInt(targetMask);
|
|
targetMask = params[1];
|
|
reasonParam = 2;
|
|
}
|
|
if (this.klines.findIndex(k => k.mask === targetMask) !== -1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 200 ${socket.nickname} ${targetMask} :KLINE already exists for this mask\r\n`);
|
|
break;
|
|
}
|
|
var reason = params.slice(reasonParam).join(' ') || '';
|
|
var kline = {
|
|
"mask": targetMask,
|
|
"expiry": expiry,
|
|
"reason": reason
|
|
}
|
|
this.klines.push(kline);
|
|
this.saveKLinesToFile();
|
|
if (reason) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 381 ${socket.nickname} :KLINE added for ${targetMask} (duration ${expiry - this.getDate()} seconds) [${reason}]\r\n`);
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 381 ${socket.nickname} :KLINE added for ${targetMask} (duration ${expiry - this.getDate()} seconds)\r\n`);
|
|
}
|
|
await this.scanUsersForKLines();
|
|
break;
|
|
case 'UNKLINE':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `UNKLINE command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} UNKLINE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var targetMask = params[0];
|
|
if (this.klines.findIndex(k => k.mask === targetMask) == -1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 200 ${socket.nickname} ${targetMask} :No such KLINE\r\n`);
|
|
break;
|
|
}
|
|
const klineIndex = this.klines.findIndex(k => k.mask === targetMask);
|
|
if (klineIndex !== -1) {
|
|
this.klines.splice(klineIndex, 1);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 381 ${socket.nickname} :KLINE removed for ${targetMask}\r\n`);
|
|
break;
|
|
case 'WHOIS':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} WHOIS :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var whoisNick = params[0];
|
|
var nickCheck = this.findUser(whoisNick);
|
|
if (nickCheck) {
|
|
whoisNick = nickCheck;
|
|
var whoisSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s)=== whoisNick);
|
|
const whois_username = this.usernames.get(whoisNick);
|
|
var userinfo = this.userinfo.get(whoisNick) || whoisSocket.userinfo || 'unknown';
|
|
this.safeWriteToSocket(socket, `:${this.servername} 311 ${socket.nickname} ${whoisNick} ${whois_username} ${whoisSocket.host} * :${userinfo}\r\n`);
|
|
if (this.awaymsgs.has(whoisNick)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 301 ${socket.nickname} ${whoisNick} :${this.awaymsgs.get(whoisNick)}\r\n`);
|
|
}
|
|
const userChannels = [];
|
|
|
|
var output_lines = [];
|
|
for (const [ch, channelObj] of this.channelData.entries()) {
|
|
if (channelObk.users.has(whoisNick)) {
|
|
let prefix = '';
|
|
var chanops = channelObj.ops;
|
|
var chanhalfops = channelObj.halfops;
|
|
var chanvoices = channelObj.voices;
|
|
var modes = channelObj.modes;
|
|
|
|
if ((modes.includes('p') || modes.includes('s')) && (!this.channelData.has(ch) || !this.channelData.get(ch).users.has(socket.nickname))) {
|
|
continue; // Skip listing this channel if it's private/secret and user is not in it
|
|
}
|
|
if (chanops.has(whoisNick)) {
|
|
if (socket.client_caps.includes('multi-prefix')) {
|
|
prefix += '@';
|
|
} else {
|
|
prefix = '@';
|
|
}
|
|
}
|
|
if (chanhalfops.has(whoisNick)) {
|
|
if (socket.client_caps.includes('multi-prefix')) {
|
|
prefix += '%';
|
|
} else {
|
|
if (!prefix) {
|
|
prefix = '%';
|
|
}
|
|
}
|
|
}
|
|
if (chanvoices.has(whoisNick)) {
|
|
if (socket.client_caps.includes('multi-prefix')) {
|
|
prefix += '+';
|
|
} else {
|
|
if (!prefix) {
|
|
prefix = '+';
|
|
}
|
|
}
|
|
}
|
|
userChannels.push(prefix + ch);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.servername} 312 ${socket.nickname} ${whoisNick} ${this.servername} :zefIRCd-${this.version}\r\n`);
|
|
if (this.isIRCOp(whoisNick)) {
|
|
output_lines.push(`:${this.servername} 313 ${socket.nickname} ${whoisNick} :is an IRC operator\r\n`);
|
|
}
|
|
usermodes = this.getUserModes(whoisNick);
|
|
if (usermodes && usermodes.includes('s')) {
|
|
output_lines.push(`:${this.servername} 671 ${socket.nickname} ${whoisNick} :is using a secure connection\r\n`);
|
|
}
|
|
if (usermodes && usermodes.includes('r')) {
|
|
output_lines.push(`:${this.servername} 307 ${socket.nickname} ${whoisNick} :is a registered nick\r\n`);
|
|
}
|
|
if (usermodes && usermodes.includes('B')) {
|
|
output_lines.push(`:${this.servername} 335 ${socket.nickname} ${whoisNick} :is a bot\r\n`);
|
|
}
|
|
var now = this.getDate();
|
|
var userTimestamp = whoisSocket.lastspoke || now;
|
|
var idleTime = now - userTimestamp;
|
|
output_lines.push(`:${this.servername} 317 ${socket.nickname} ${whoisNick} ${idleTime} ${this.usersignontimestamps.get(whoisNick) || 0} :seconds idle, signon time\r\n`);
|
|
if (userChannels.length > 0) {
|
|
output_lines.push(`:${this.servername} 319 ${socket.nickname} ${whoisNick} :${userChannels.join(' ')}\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 318 ${socket.nickname} ${whoisNick} :End of /WHOIS list\r\n`);
|
|
await this.sendThrottled(socket, output_lines);
|
|
} else {
|
|
// Check if whoisNick is a remote server user
|
|
let foundRemote = false;
|
|
for (const [srvSocket, users] of this.serverusers.entries()) {
|
|
if (users && typeof users.has === 'function'
|
|
? Array.from(users).some(u => typeof u === 'string' && u.toLowerCase() === whoisNick.toLowerCase())
|
|
: Array.isArray(users) && users.some(u => typeof u === 'string' && u.toLowerCase() === whoisNick.toLowerCase())
|
|
) {
|
|
// Found remote user
|
|
const sender_id = this.getUniqueId(socket.nickname);
|
|
const unique_id = this.getUniqueId(whoisNick);
|
|
this.safeWriteToSocket(srvSocket, `:${sender_id} WHOIS :${unique_id}\r\n`);
|
|
foundRemote = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!foundRemote) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${whoisNick} :No such nick/channel\r\n`);
|
|
}
|
|
}
|
|
break;
|
|
case 'EVAL':
|
|
// VERY DANGEROUS
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `EVAL command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
if (!this.enable_eval) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 404 ${socket.nickname} :Eval is disabled\r\n`);
|
|
break;
|
|
}
|
|
try {
|
|
const result = eval(params.join(' '));
|
|
this.safeWriteToSocket(socket, `:${this.servername} 200 ${socket.nickname} :${result}\r\n`);
|
|
} catch (error) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 500 ${socket.nickname} :Error evaluating expression\r\n`);
|
|
}
|
|
break;
|
|
case 'KILL':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `KILL command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} KILL :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const target_nick = this.findUser(params[0]);
|
|
if (!target_nick) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${socket.nickname} ${params[0]} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
|
|
const killReason = params.slice(1).join(' ');
|
|
let cleanKillReason = killReason;
|
|
if (cleanKillReason.startsWith(':')) {
|
|
cleanKillReason = cleanKillReason.slice(1);
|
|
}
|
|
var targetSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === target_nick);
|
|
if (!targetSocket) {
|
|
this.safeWriteToSocket(socket, `:${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 (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
for (const [ch, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(socket.nickname)) {
|
|
channelObj.ops.delete(socket.nickname);
|
|
channelObj.halfops.delete(socket.nickname);
|
|
channelObj.voices.delete(socket.nickname);
|
|
}
|
|
}
|
|
if (params.length > 0) {
|
|
let reason = params.join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} QUIT :${reason}\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} QUIT :${reason}\r\n`, socket);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} QUIT :${reason}\r\n`);
|
|
this.broadcastConnection(socket, `Quit: ${reason}`);
|
|
socket.signedoff = true;
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} QUIT\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} QUIT\r\n`, socket);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} QUIT :Client disconnected\r\n`);
|
|
this.broadcastConnection(socket, 'Quit: Client disconnected');
|
|
socket.signedoff = true;
|
|
}
|
|
this.terminateSession(socket, true);
|
|
break;
|
|
case 'MOTD':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
await this.doMOTD(socket.nickname, socket);
|
|
break;
|
|
case 'VERSION':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 351 ${socket.nickname} ${this.servername} zefIRCd ${this.version} :zefIRCd IRC server\r\n`);
|
|
break;
|
|
case 'WALLOPS':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `WALLOPS command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${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 :${wallopsMessage}\r\n`);
|
|
case 'VHOST':
|
|
if (!this.checkRegistered(socket)) {
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(socket.nickname) && !this.allow_public_vhosts) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 481 ${socket.nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
this.debugLog('warn', `VHOST command attempted by non-IRCOp: ${socket.nickname}`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 461 ${socket.nickname} VHOST :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const newVHost = params[0];
|
|
if (!newVHost || !/^[a-zA-Z0-9.-]+$/.test(newVHost)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 501 ${socket.nickname} :Invalid VHost format\r\n`);
|
|
break;
|
|
}
|
|
// Prevent setting VHost to an IP address (IPv4 or IPv6)
|
|
const ipv4Pattern = /^(?:\d{1,3}\.){3}\d{1,3}$/;
|
|
const ipv6Pattern = /^([a-fA-F0-9:]+:+)+[a-fA-F0-9]+$/;
|
|
if (ipv4Pattern.test(newVHost) || ipv6Pattern.test(newVHost)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 501 ${socket.nickname} :VHost cannot be an IP address\r\n`);
|
|
break;
|
|
}
|
|
dns.lookup(newVHost, (err, address) => {
|
|
if (!err && address) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 501 ${socket.nickname} :VHost must not resolve to a real IP (resolved to: ${address})\r\n`);
|
|
return;
|
|
}
|
|
// Set the new VHost for the socket
|
|
socket.host = newVHost;
|
|
if (socket.client_caps && socket.client_caps.includes('CHGHOST')) {
|
|
this.safeWriteToSocket(socket, `:${socket.nickname}!${socket.username}@${socket.host} CHGHOST ${socket.username} ${socket.host}\r\n`);
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} 396 ${socket.nickname} :Your VHost has been changed to ${socket.host}\r\n`);
|
|
});
|
|
break;
|
|
case 'STARTTLS':
|
|
socket.upgrading_to_tls = true;
|
|
this.safeWriteToSocket(socket, `:${this.servername} 670 ${socket.uniqueId} :STARTTLS successful, go ahead with TLS handshake\r\n`);
|
|
break;
|
|
default:
|
|
// Ignore unknown commands
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
deleteChannel(channel) {
|
|
// Cleans up the channel from all lists
|
|
if (!this.isReservedChannel(channel)) {
|
|
this.channelData.delete(channel);
|
|
this.debugLog('info', `Channel ${channel} deleted`);
|
|
}
|
|
}
|
|
|
|
cleanupUserSession(nickname) {
|
|
this.usersignontimestamps.delete(nickname);
|
|
this.usernames.delete(nickname);
|
|
this.usermodes.delete(nickname);
|
|
this.awaymsgs.delete(nickname);
|
|
this.accounts.delete(nickname);
|
|
this.userinfo.delete(nickname);
|
|
this.deleteUserUniqueId(nickname);
|
|
for (const [ch, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(nickname)) {
|
|
channelObj.users.delete(nickname);
|
|
}
|
|
if (channelObj.ops.has(nickname)) {
|
|
channelObj.ops.delete(nickname);
|
|
}
|
|
if (channelObj.halfops.has(nickname)) {
|
|
channelObj.halfops.delete(nickname);
|
|
}
|
|
if (channelObj.voices.has(nickname)) {
|
|
channelObj.voices.delete(nickname);
|
|
}
|
|
if (channelObj.invites.has(nickname)) {
|
|
channelObj.invites.delete(nickname);
|
|
}
|
|
if (channelObj.users.size === 0) {
|
|
this.deleteChannel(ch);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
terminateSession(socket, close = false) {
|
|
// Cleans up the user session and removes them from all channels
|
|
const nickname = this.nicknames.get(socket);
|
|
if (nickname) {
|
|
this.cleanupUserSession(nickname);
|
|
this.nicknames.delete(socket);
|
|
}
|
|
if (!socket.signedoff) {
|
|
var serverSocket = null;
|
|
for (const [srvSocket, users] of this.serverusers.entries()) {
|
|
if (users && typeof users.has === 'function' && users.has(nickname)) {
|
|
// Don't send QUIT to this server, as it owns the user
|
|
serverSocket = srvSocket;
|
|
continue;
|
|
}
|
|
}
|
|
this.broadcastToAllServers(`:${socket.uniqueId} QUIT :Client disconnected\r\n`, serverSocket);
|
|
socket.signedoff = true; // Just in case
|
|
}
|
|
if (socket.isserver) {
|
|
this.servers.delete(socket);
|
|
this.serverusers.get(socket).forEach(nickname => {
|
|
this.uniqueids.delete(nickname)
|
|
this.usernames.delete(nickname);
|
|
this.hostnames.delete(nickname);
|
|
this.realhosts.delete(nickname);
|
|
this.userinfo.delete(nickname);
|
|
this.usermodes.delete(nickname);
|
|
this.usersignontimestamps.delete(nickname);
|
|
this.awaymsgs.delete(nickname);
|
|
});
|
|
this.serverusers.delete(socket);
|
|
} else {
|
|
this.clients.delete(socket);
|
|
}
|
|
if (socket._idleInterval) {
|
|
clearInterval(socket._idleInterval);
|
|
}
|
|
if (close) {
|
|
socket.end();
|
|
}
|
|
}
|
|
|
|
sendWebTVNotice(message) {
|
|
// Send a WebTV Global Notice to all WebTV clients
|
|
this.broadcastToAllWebTVClients(`:${this.servername} NOTICE * :${message}\r\n`);
|
|
}
|
|
|
|
sendWebTVNoticeTo(socket, message) {
|
|
// Sends a WebTV Global Notice to the specified socket
|
|
if (Array.isArray(message)) {
|
|
message = message.map(line => `:${this.servername} NOTICE * :${line}\r\n`);
|
|
this.sendThrottled(socket, message);
|
|
return;
|
|
}
|
|
this.safeWriteToSocket(socket, `:${this.servername} NOTICE * :${message}\r\n`);
|
|
}
|
|
|
|
sendWebTVSpoofedActionTo(socket, channel, message) {
|
|
if (!Array.isArray(message)) {
|
|
message = [message];
|
|
}
|
|
if (this.clientIsWebTV(socket)) {
|
|
message.forEach(line => {
|
|
const msg = line.split(' ');
|
|
const firstWord = msg[0];
|
|
const action = msg.slice(1).join(' ');
|
|
const message = [`:${firstWord}!system@webtv PRIVMSG ${channel} :\x01ACTION ${action}\x01\r\n`];
|
|
this.sendThrottled(socket, message);
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
|
|
getUserChannelCount(username) {
|
|
// returns the number of channels a user is in
|
|
let count = 0;
|
|
for (const [channel, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(username)) {
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
getUsersInChannel(channel) {
|
|
// Returns an array of users in a specific channel, with modes applied
|
|
if (this.channelData.has(channel)) {
|
|
const channelObj = this.channelData.get(channel);
|
|
const ops = channelObj.ops || new Set();
|
|
const halfops = channelObj.halfops || new Set();
|
|
const voices = channelObj.voices || new Set();
|
|
return Array.from(channelObj.users).map(user => {
|
|
if (ops.has(user)) return '@' + user;
|
|
if (halfops.has(user)) return '%' + user;
|
|
if (voices.has(user)) return '+' + user;
|
|
return user;
|
|
});
|
|
}
|
|
}
|
|
|
|
broadcastUser(username, message, exceptSocket = null) {
|
|
// Broadcast a message to all users in any channels that the specified user is in, except the one specified
|
|
const alreadyNotified = [];
|
|
for (const [channel, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(username)) {
|
|
for (const user of channelObj.users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (alreadyNotified.includes(sock)) {
|
|
continue;
|
|
}
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
alreadyNotified.push(sock);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastChannel(channel, message, exceptSocket = null) {
|
|
// Broadcast a message to all users in a specific channel, except the one specified
|
|
const alreadyNotified = [];
|
|
if (this.channelData.has(channel)) {
|
|
const channelObj = this.channelData.get(channel);
|
|
for (const user of channelObj.users) {
|
|
// +Z (secureonly): Restricts private message (PRIVMSG) or notice (NOTICE) reception/sending to users with a secure connection (TLS).
|
|
if (channelObj.modes.includes('Z') && (message.includes('PRIVMSG') || message.includes('NOTICE'))) {
|
|
const user_modes = this.getUserModes(user);
|
|
if (user_modes.includes('z')) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (alreadyNotified.includes(sock)) {
|
|
continue;
|
|
}
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
alreadyNotified.push(sock);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (alreadyNotified.includes(sock)) {
|
|
continue;
|
|
}
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
alreadyNotified.push(sock);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastChannelWebTV(channel, message, exceptSocket = null) {
|
|
// Broadcast a message to all WebTV users in a specific channel, except the one specified
|
|
const alreadyNotified = [];
|
|
if (this.channelData.has(channel)) {
|
|
const channelObj = this.channelData.get(channel);
|
|
for (const user of channelObj.users) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (alreadyNotified.includes(socket)) {
|
|
continue;
|
|
}
|
|
// Only send to WebTV clients
|
|
if (socket && socket !== exceptSocket && this.clientIsWebTV(socket)) {
|
|
this.sendWebTVSpoofedActionTo(socket, channel, message)
|
|
alreadyNotified.push(socket);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastChannelJoin(channel, sourceSocket, exceptSocket = null) {
|
|
// Broadcast a channel join message to all users in the channel, except the one specified
|
|
channel = this.findChannel(channel);
|
|
if (!channel) {
|
|
this.debugLog('warn', `Attempted to broadcast join to non-existent channel: ${channel}`);
|
|
return;
|
|
}
|
|
if (this.channelData.has(channel)) {
|
|
const channelObj = this.channelData.get(channel);
|
|
for (const user of channelObj.users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock && sock !== exceptSocket) {
|
|
if (sock.client_caps && sock.client_caps.includes('extended-join')) {
|
|
var account = this.accounts.get(sourceSocket.nickname) || '*';
|
|
var userinfo = this.userinfo.get(sourceSocket.nickname) || '';
|
|
sock.write(`:${sourceSocket.nickname}!${sourceSocket.username}@${sourceSocket.host} JOIN ${channel} ${account} :${userinfo}\r\n`);
|
|
} else {
|
|
sock.write(`:${sourceSocket.nickname}!${sourceSocket.username}@${sourceSocket.host} JOIN ${channel}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
this.debugLog('warn', `Attempted to broadcast join to non-existent channel: ${channel}`);
|
|
}
|
|
}
|
|
|
|
broadcastToAllServers(message, exceptSocket = null) {
|
|
// Broadcast a message to all server sockets, except the one specified
|
|
for (const [srvSocket, serverName] of this.servers.entries()) {
|
|
if (srvSocket && srvSocket !== exceptSocket) {
|
|
this.safeWriteToSocket(srvSocket, message);
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastWallops(message) {
|
|
// Broadcast a message to all users with 'w' or 'o' user modes
|
|
for (const [socket, nickname] of this.nicknames.entries()) {
|
|
const usermodes = this.getUserModes(nickname);
|
|
if (usermodes.includes('w') || usermodes.includes('o')) {
|
|
this.safeWriteToSocket(socket, message);
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastToAllClients(message, exceptSocket = null) {
|
|
// Broadcast a message to all connected clients, except the one specified
|
|
for (const client of this.clients) {
|
|
if (client !== exceptSocket) {
|
|
client.write(message);
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastToAllWebTVClients(message, exceptSocket = null) {
|
|
// Broadcast a message to all connected WebTV clients, except the one specified
|
|
for (const client of this.clients) {
|
|
if (client !== exceptSocket && this.clientIsWebTV(client)) {
|
|
client.write(message);
|
|
}
|
|
}
|
|
}
|
|
|
|
isIRCOp(nickname) {
|
|
// Check if the user is an IRC operator
|
|
if (!this.getUserModes(nickname)) return false;
|
|
const modes = this.getUserModes(nickname);
|
|
if (Array.isArray(modes)) {
|
|
return modes.includes('o');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
isSpyingOnConnections(nickname) {
|
|
if (!this.getUserModes(nickname)) return false;
|
|
const modes = this.getUserModes(nickname);
|
|
if (Array.isArray(modes)) {
|
|
return modes.includes('c');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
createChannel(channel, creator) {
|
|
// Create a new channel with the specified creator
|
|
if (!this.channelData.has(channel)) {
|
|
this.channelData.set(channel, {
|
|
users: new Set(),
|
|
ops: new Set([creator]),
|
|
halfops: new Set(),
|
|
voices: new Set(),
|
|
topic: '',
|
|
bans: new Set(),
|
|
exemptions: new Set(),
|
|
invites: new Set(),
|
|
modes: [...this.default_channel_modes],
|
|
limit: null,
|
|
key: null,
|
|
timestamp: this.getDate()
|
|
});
|
|
}
|
|
}
|
|
|
|
checkMask(mask, socket) {
|
|
// Check if a mask matches a user's socket
|
|
const host = socket.host;
|
|
const realhost = socket.realhost;
|
|
const realaddress = socket.remoteAddress;
|
|
const nickname = this.nicknames.get(socket);
|
|
var fullMask = `*!*@${host}`;
|
|
var fullMask2 = `*!*@${realhost}`;
|
|
var fullMask3 = `*!*@${realaddress}`;
|
|
if (nickname) {
|
|
const userIdent = this.usernames.get(nickname) || nickname;
|
|
fullMask = `${nickname}!${userIdent}@${host}`;
|
|
fullMask2 = `${nickname}!${userIdent}@${realhost}`;
|
|
fullMask3 = `${nickname}!${userIdent}@${realaddress}`;
|
|
}
|
|
|
|
|
|
// If mask does not contain '!', treat as nickname or username only
|
|
if (!mask.includes('!')) {
|
|
// Wildcard match for just the nickname or username
|
|
// Try matching against both nickname and username
|
|
const maskRegex = new RegExp('^' + mask.replace(/\*/g, '.*').replace(/\?/g, '.') + '$', 'i');
|
|
return maskRegex.test(nickname) || 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, '.') + '$', 'i');
|
|
var matches = nickRegex.test(fullNick) && userRegex.test(fullUser) && hostRegex.test(fullHost);
|
|
if (!matches && fullMask2) {
|
|
// Try matching against the real host if available
|
|
const [fullNick2, fullRest2] = fullMask2.split('!', 2);
|
|
const [fullUser2, fullHost2] = (fullRest2 || '').split('@', 2);
|
|
matches = nickRegex.test(fullNick2) && userRegex.test(fullUser2) && hostRegex.test(fullHost2);
|
|
}
|
|
if (!matches && fullMask3) {
|
|
// Try matching against the real IP if available
|
|
const [fullNick3, fullRest3] = fullMask3.split('!', 2);
|
|
const [fullUser3, fullHost3] = (fullRest3 || '').split('@', 2);
|
|
matches = nickRegex.test(fullNick3) && userRegex.test(fullUser3) && hostRegex.test(fullHost3);
|
|
}
|
|
return matches;
|
|
}
|
|
|
|
filterHostname(socket, hostname) {
|
|
// Masks the user's hostname or IP for privacy
|
|
const username = this.nicknames.get(socket);
|
|
var modes = null;
|
|
if (username) {
|
|
modes = this.getUserModes(username);
|
|
}
|
|
if (modes) {
|
|
if (Array.isArray(modes) && modes.includes('x')) {
|
|
// Masked hostname for +x users
|
|
if (typeof hostname === 'string') {
|
|
// Mask everything except the first and last octet for IPv4
|
|
// Mask IP-like subdomains (e.g., 1-1-1-1.domain.com)
|
|
const ipSubdomainMatch = hostname.match(/^(\d+)-(\d+)-(\d+)-(\d+)\./);
|
|
if (ipSubdomainMatch) {
|
|
return `${ipSubdomainMatch[1]}-x-x-${ipSubdomainMatch[4]}.${hostname.split('.').slice(1).join('.')}`;
|
|
}
|
|
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) {
|
|
// Check if a user is banned from a channel
|
|
const nickname = this.nicknames.get(socket);
|
|
channel = this.findChannel(channel);
|
|
if (!channel) {
|
|
return false;
|
|
}
|
|
if (this.channelData.has(channel).bans) {
|
|
const bans = this.channelData.get(channel).bans;
|
|
// 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) {
|
|
// Find a socket related to a unique ID
|
|
for (const [socket, nickname] of this.nicknames.entries()) {
|
|
if (socket.uniqueId === uniqueId) {
|
|
// client socket
|
|
return socket;
|
|
}
|
|
}
|
|
for (const [srvSocket, users] of this.serverusers.entries()) {
|
|
const searchID = this.findUserByUniqueId(uniqueId);
|
|
if (users.has(searchID)) {
|
|
// server socket
|
|
return srvSocket;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
findUserByUniqueId(uniqueId) {
|
|
// Find a user by their unique ID
|
|
var uniqueids = this.uniqueids || new Map();
|
|
if (!uniqueids || uniqueids === true) {
|
|
uniqueids = new Map();
|
|
}
|
|
for (const [nickname, id] of uniqueids.entries()) {
|
|
if (id === uniqueId) {
|
|
return nickname;
|
|
}
|
|
}
|
|
for (const [socket, users] of this.serverusers.entries()) {
|
|
for (const user of users) {
|
|
if (this.getUniqueId(user) === uniqueId) {
|
|
return user;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
addUserUniqueId(nickname, uniqueId) {
|
|
// Add or update the unique ID for a user
|
|
if (!this.uniqueids || this.uniqueids === true) {
|
|
this.uniqueids = new Map();
|
|
}
|
|
this.uniqueids.set(nickname, uniqueId);
|
|
}
|
|
|
|
deleteUserUniqueId(nickname) {
|
|
// Remove the unique ID for a user
|
|
if (this.uniqueids && this.uniqueids.has(nickname)) {
|
|
this.uniqueids.delete(nickname);
|
|
}
|
|
}
|
|
|
|
async doMOTD(nickname, socket = null) {
|
|
// Sends the Message of the Day (MOTD) to the user
|
|
var output_lines = [];
|
|
output_lines.push(`:${this.servername} 375 ${nickname} :${this.servername} message of the day\r\n`);
|
|
if (!this.irc_config.hide_version) {
|
|
output_lines.push(`:${this.servername} 372 ${nickname} :This is zefIRCd v${this.version}, running on minisrv v${this.minisrv_config.version}\r\n`);
|
|
}
|
|
if (typeof this.irc_motd === 'string' && this.irc_motd.length > 0) {
|
|
output_lines.push(`:${this.servername} 372 ${nickname} :${this.irc_motd}\r\n`);
|
|
} else if (Array.isArray(this.irc_motd) && this.irc_motd.length > 0) {
|
|
for (var line of this.irc_motd) {
|
|
if (line === '') {
|
|
line = '-';
|
|
}
|
|
output_lines.push(`:${this.servername} 372 ${nickname} :- ${line}\r\n`);
|
|
}
|
|
} else {
|
|
output_lines.push(`:${this.servername} 372 ${nickname} :No message of the day is set\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 376 ${nickname} :End of /MOTD command\r\n`);
|
|
if (socket) {
|
|
await this.sendThrottled(socket, output_lines);
|
|
} else {
|
|
return output_lines;
|
|
}
|
|
}
|
|
|
|
isReservedChannel(channel) {
|
|
// Check if the channel is a reserved channel
|
|
if (this.irc_config.channels && Array.isArray(this.irc_config.channels)) {
|
|
return this.irc_config.channels.some(ch => ch.name === channel);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
checkIfReservedChannelOp(socket, channel) {
|
|
// Check if the channel is a reserved channel and if the user is an operator for that channel
|
|
if (this.isReservedChannel(channel)) {
|
|
const reservedChannel = this.irc_config.channels.find(ch => ch.name === channel);
|
|
// reservedChannel.ops is an array of masks
|
|
if (reservedChannel && reservedChannel.ops && Array.isArray(reservedChannel.ops)) {
|
|
for (const mask of reservedChannel.ops) {
|
|
if (this.checkMask(mask, socket)) {
|
|
return true; // User is an operator for this reserved channel
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false; // User is not an operator for this reserved channel
|
|
}
|
|
|
|
isRemoteServerUser(socket, username) {
|
|
// Check if the user is a remote server user
|
|
var serverUsers = this.serverusers.get(socket) || new Set();
|
|
if (!serverUsers || serverUsers === true) {
|
|
serverUsers = new Set();
|
|
}
|
|
for (const user of serverUsers) {
|
|
if (typeof user === 'string' && user.toLowerCase() === username.toLowerCase()) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
addRemoteServerUser(socket, username) {
|
|
// Add a remote server user to the serverusers map
|
|
if (!this.serverusers.has(socket)) {
|
|
this.serverusers.set(socket, new Set());
|
|
}
|
|
this.serverusers.get(socket).add(username);
|
|
}
|
|
|
|
getRemoteServerUserSocket(username) {
|
|
// Find the socket of a remote server user by username
|
|
for (const [socket, users] of this.serverusers.entries()) {
|
|
for (const user of users) {
|
|
if (typeof user === 'string' && user.toLowerCase() === username.toLowerCase()) {
|
|
return socket;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
|
|
|
|
getUsernameFromUniqueId(uniqueId) {
|
|
// Find the username associated with a unique ID
|
|
for (const [socket, nickname] of this.nicknames.entries()) {
|
|
if (socket.uniqueId === uniqueId) {
|
|
return nickname;
|
|
}
|
|
}
|
|
for (const [nick, id] of this.uniqueids.entries()) {
|
|
if (id === uniqueId) {
|
|
return nick;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
getUniqueId(username) {
|
|
// Find the unique ID for a given username
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s).toLowerCase() === username.toLowerCase());
|
|
if (socket) {
|
|
return socket.uniqueId;
|
|
} else {
|
|
for (const [nick, id] of this.uniqueids.entries()) {
|
|
if (nick.toLowerCase() === username.toLowerCase()) {
|
|
return id;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
countGlobalUsers() {
|
|
// Counts the total number of users across all clients and server users
|
|
let globalUsers = this.clients.length;
|
|
for (const users of this.serverusers.values()) {
|
|
if (users && typeof users.size === 'number') {
|
|
globalUsers += users.size;
|
|
} else if (Array.isArray(users)) {
|
|
globalUsers += users.length;
|
|
}
|
|
}
|
|
return globalUsers;
|
|
}
|
|
|
|
processNickChange(socket, newNick) {
|
|
// Handles nickname changes, assumes the newNick is already validated
|
|
// Update all channel user lists to use channelData
|
|
for (const [ch, channelObj] of this.channelData.entries()) {
|
|
if (channelObj.users.has(socket.nickname)) {
|
|
channelObj.users.delete(socket.nickname);
|
|
channelObj.users.add(newNick);
|
|
}
|
|
}
|
|
this.usernames.set(newNick, this.usernames.get(socket.nickname) || socket.nickname);
|
|
this.usernames.delete(socket.nickname);
|
|
this.nicknames.set(socket, newNick);
|
|
this.nicknames.delete(socket.nickname);
|
|
this.addUserUniqueId(newNick, socket.uniqueId);
|
|
this.deleteUserUniqueId(socket.nickname);
|
|
this.usermodes.set(newNick, this.getUserModes(socket.nickname) || []);
|
|
this.usermodes.delete(socket.nickname);
|
|
if (this.awaymsgs.has(socket.nickname)) {
|
|
this.awaymsgs.set(newNick, this.awaymsgs.get(socket.nickname) || '');
|
|
this.awaymsgs.delete(socket.nickname);
|
|
}
|
|
this.usersignontimestamps.set(newNick, this.usersignontimestamps.get(socket.nickname) || this.getDate());
|
|
this.usersignontimestamps.delete(socket.nickname);
|
|
socket.nickname = newNick;
|
|
}
|
|
|
|
generateUniqueId(socket) {
|
|
// Generate a unique ID
|
|
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
|
|
let id = '';
|
|
for (let i = 0; i < 6; i++) {
|
|
id += chars.charAt(Math.floor(Math.random() * chars.length));
|
|
}
|
|
if (this.uniqueids.has(id)) {
|
|
// If the ID already exists, generate a new one
|
|
return this.generateUniqueId(socket);
|
|
}
|
|
return id;
|
|
}
|
|
|
|
async sendThrottled(socket, lines, delayMs = 1) {
|
|
for (const line of lines) {
|
|
await new Promise(res => setTimeout(res, delayMs));
|
|
if (socket.writable) {
|
|
await this.safeWriteToSocket(socket, line);
|
|
}
|
|
}
|
|
}
|
|
|
|
getDate() {
|
|
// Returns the current timestamp in seconds
|
|
return Math.floor(Date.now() / 1000)
|
|
}
|
|
|
|
findChannel(channel) {
|
|
// Normalize the channel name to lowercase for case-insensitive comparison
|
|
let foundChannel = null;
|
|
for (const existingChannel of this.channelData.keys()) {
|
|
if (existingChannel.toLowerCase() === channel.toLowerCase()) {
|
|
foundChannel = existingChannel;
|
|
break;
|
|
}
|
|
}
|
|
return foundChannel;
|
|
}
|
|
|
|
findUser(username) {
|
|
// Normalize the username to lowercase for case-insensitive comparison
|
|
let foundUser = null;
|
|
if (typeof username !== 'string') {
|
|
return null;
|
|
}
|
|
for (const [socket, nick] of this.nicknames.entries()) {
|
|
if (nick.toLowerCase() === username.toLowerCase()) {
|
|
foundUser = nick;
|
|
break;
|
|
}
|
|
}
|
|
return foundUser;
|
|
}
|
|
|
|
clientIsWebTV(socket) {
|
|
// Check if the client is a WebTV client based on the client version
|
|
if (socket.client_version.includes('WebTV')) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
broadcastUserIfCap(socket, message, exceptSocket = null, client_cap) {
|
|
if (socket.client_caps.includes(client_cap)) {
|
|
this.broadcastUser(socket.nickname, message, exceptSocket);
|
|
}
|
|
}
|
|
|
|
broadcastUserIfCapAndChanOp(socket, message, exceptSocket = null, client_cap, channel) {
|
|
if (socket.client_caps.includes(client_cap)) {
|
|
// Check if the user is an operator in the specified channel
|
|
channel = this.findChannel(channel);
|
|
if (!channel) {
|
|
this.debugLog('warn', `Attempted to broadcast to channel ${channel} that does not exist.`);
|
|
return;
|
|
}
|
|
const channelObj = this.channelData.get(channel);
|
|
const isOp = channelObj.ops.has(socket.nickname) || false;
|
|
const isHalfOp = channelObj.halfops.has(socket.nickname) || false;
|
|
if (isOp || isHalfOp) {
|
|
this.broadcastUser(socket.nickname, message, exceptSocket);
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastConnection(clientSocket, quitMsg = null) {
|
|
// Broadcasts a connection message to all clients with mode +c
|
|
for (const [index, socket] of this.clients.entries()) {
|
|
if (socket !== clientSocket && this.isSpyingOnConnections(socket.nickname)) {
|
|
if (quitMsg) {
|
|
this.sendWebTVNoticeTo(socket, `*** Notice --- Client exiting: ${clientSocket.nickname} (${clientSocket.username}@${clientSocket.host}) [${clientSocket.remoteAddress}] [${quitMsg}]`);
|
|
this.debugLog('info', `Client exiting: ${clientSocket.nickname} (${clientSocket.username}@${clientSocket.host}) [${clientSocket.remoteAddress}] [${quitMsg}]`);
|
|
} else {
|
|
this.sendWebTVNoticeTo(socket, `*** Notice --- Client connecting: ${clientSocket.nickname} (${clientSocket.username}@${clientSocket.host}) [${clientSocket.remoteAddress}] {users} [${clientSocket.userinfo}] <${clientSocket.uniqueId}>`);
|
|
this.debugLog('info', `Client connecting: ${clientSocket.nickname} (${clientSocket.username}@${clientSocket.host}) [${clientSocket.remoteAddress}] {users} [${clientSocket.userinfo}] <${clientSocket.uniqueId}>`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
getUserModes(nickname) {
|
|
// Returns the user modes for a given nickname
|
|
let foundSocket = null;
|
|
for (const [socket, nick] of this.nicknames.entries()) {
|
|
if (nick.toLowerCase() === nickname.toLowerCase()) {
|
|
foundSocket = socket;
|
|
nickname = socket.nickname; // Ensure we use the correct nickname
|
|
break;
|
|
}
|
|
}
|
|
if (!foundSocket) {
|
|
// Also search this.serverusers for remote users (case-insensitive)
|
|
for (const [srvSocket, users] of this.serverusers.entries()) {
|
|
if (users && typeof users.forEach === 'function') {
|
|
for (const user of users) {
|
|
if (typeof user === 'string' && user.toLowerCase() === nickname.toLowerCase()) {
|
|
foundSocket = srvSocket;
|
|
nickname = user;
|
|
break;
|
|
}
|
|
}
|
|
} else if (Array.isArray(users)) {
|
|
for (const user of users) {
|
|
if (typeof user === 'string' && user.toLowerCase() === nickname.toLowerCase()) {
|
|
foundSocket = srvSocket;
|
|
nickname = user;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (foundSocket) break;
|
|
}
|
|
}
|
|
if (!foundSocket) {
|
|
return null;
|
|
}
|
|
var modes = this.usermodes.get(nickname);
|
|
if (!modes || modes === true) {
|
|
this.usermodes.set(nickname, [...this.default_user_modes]);
|
|
}
|
|
return this.usermodes.get(nickname);
|
|
}
|
|
|
|
setUserMode(nickname, mode, adding) {
|
|
// Sets a user mode for a given nickname
|
|
const modes = this.getUserModes(nickname);
|
|
if (adding) {
|
|
if (!modes.includes(mode)) {
|
|
modes.push(mode);
|
|
}
|
|
} else {
|
|
const index = modes.indexOf(mode);
|
|
if (index !== -1) {
|
|
modes.splice(index, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
async getHostname(socket) {
|
|
// Resolve the hostname for a socket, using reverse DNS lookup
|
|
if (socket && socket.remoteAddress) {
|
|
try {
|
|
var hostname = socket.remoteAddress
|
|
hostname = await new Promise((resolve) => {
|
|
dns.reverse(socket.remoteAddress, (err, hostnames) => {
|
|
if (!err && hostnames && hostnames.length > 0) {
|
|
socket.hostname_resolved = true;
|
|
this.safeWriteToSocket(socket, `:${this.servername} NOTICE AUTH :*** Hostname found: ${hostnames[0]}\r\n`);
|
|
resolve(hostnames[0]);
|
|
} else {
|
|
if (!err) {
|
|
err = 'Domain name not found';
|
|
}
|
|
socket.hostname_resolved = true;
|
|
this.safeWriteToSocket(socket, `:${this.servername} NOTICE AUTH :*** Could not resolve your hostname: ${err}; using your IP address (${socket.remoteAddress}) instead.\r\n`);
|
|
resolve(socket.remoteAddress);
|
|
}
|
|
});
|
|
});
|
|
} catch (e) {
|
|
this.debugLog('error', `Error resolving hostname for ${socket.remoteAddress}: ${e}`);
|
|
socket.hostname_resolved = true;
|
|
this.safeWriteToSocket(socket, `:${this.servername} NOTICE AUTH :*** Could not resolve your hostname: ${e}; using your IP address (${socket.remoteAddress}) instead.\r\n`);
|
|
}
|
|
return hostname;
|
|
}
|
|
}
|
|
|
|
async doInitialHandshake(socket) {
|
|
// Perform the initial handshake with the client
|
|
// We pause the socket to prevent sending data before the hostname is resolved
|
|
this.safeWriteToSocket(socket, `:${this.servername} NOTICE AUTH :*** Looking up your hostname\r\n`);
|
|
socket.pause();
|
|
socket.host = await this.getHostname(socket);
|
|
socket.resume();
|
|
socket.realhost = socket.host;
|
|
}
|
|
|
|
async scanSocketForKLine(socket) {
|
|
for (const kline of this.klines) {
|
|
if (this.checkMask(kline.mask, socket)) {
|
|
if (kline.expiry && kline.expiry > this.getDate()) {
|
|
if (kline.reason) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} KILL ${socket.nickname} :K-lined: ${kline.reason}\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} KILL ${socket.uniqueId} :K-lined: ${kline.reason}\r\n`, socket);
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} KILL ${socket.nickname} :K-lined\r\n`);
|
|
this.broadcastToAllServers(`:${socket.uniqueId} KILL ${socket.uniqueId} :K-lined\r\n`, socket);
|
|
}
|
|
this.terminateSession(socket, true);
|
|
return true;
|
|
} else {
|
|
const klineIndex = this.klines.findIndex(k => k.mask === kline.mask);
|
|
if (klineIndex !== -1) {
|
|
this.klines.splice(klineIndex, 1);
|
|
}
|
|
this.saveKLinesToFile();
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
async scanUsersForKLines() {
|
|
for (const kline of this.klines) {
|
|
for (const socket of this.nicknames.keys()) {
|
|
if (this.checkMask(kline.mask, socket)) {
|
|
if (kline.expiry && kline.expiry > this.getDate()) {
|
|
if (kline.reason) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} KILL ${socket.nickname} :K-lined: ${kline.reason}\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} KILL :K-lined: ${kline.reason}\r\n`);
|
|
} else {
|
|
this.safeWriteToSocket(socket, `:${this.servername} KILL ${socket.nickname} :K-lined\r\n`);
|
|
this.broadcastUser(socket.nickname, `:${socket.nickname}!${socket.username}@${socket.host} KILL :K-lined\r\n`);
|
|
}
|
|
this.broadcastToAllServers(`:${socket.uniqueId} KILL ${socket.uniqueId} :K-lined: ${kline.reason}\r\n`, socket);
|
|
this.terminateSession(socket, true);
|
|
} else {
|
|
const klineIndex = this.klines.findIndex(k => k.mask === kline.mask);
|
|
if (klineIndex !== -1) {
|
|
this.klines.splice(klineIndex, 1);
|
|
}
|
|
this.saveKLinesToFile();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
saveKLinesToFile() {
|
|
// Ensure the session store directory exists
|
|
if (!fs.existsSync(this.session_store_path)) {
|
|
fs.mkdirSync(this.session_store_path, { recursive: true });
|
|
}
|
|
// Save the KLines to a file
|
|
fs.writeFileSync(this.klines_path, JSON.stringify(this.klines, null, 2));
|
|
}
|
|
|
|
loadKLinesFromFile() {
|
|
// Load KLines from a file if it exists
|
|
if (fs.existsSync(this.klines_path)) {
|
|
const data = fs.readFileSync(this.klines_path, 'utf8');
|
|
this.klines = JSON.parse(data);
|
|
}
|
|
}
|
|
|
|
getGitRevision() {
|
|
try {
|
|
var gitPath = __dirname + path.sep + ".." + path.sep + ".." + path.sep + ".." + path.sep + ".git" + path.sep
|
|
const rev = fs.readFileSync(gitPath + "HEAD").toString().trim();
|
|
if (rev.indexOf(':') === -1) {
|
|
return rev;
|
|
} else {
|
|
return fs.readFileSync(gitPath + rev.substring(5)).toString().trim().substring(0, 8) + "-" + rev.split('/').pop();
|
|
}
|
|
} catch (e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
isChannelOp(nickname, channel) {
|
|
// Check if the user is a channel operator
|
|
channel = this.findChannel(channel);
|
|
if (!channel) {
|
|
return false; // Channel not found
|
|
}
|
|
const channelOps = this.channelData.get(channel).ops;
|
|
if (channelOps === true) {
|
|
return false;
|
|
}
|
|
if (channelOps.has(nickname)) {
|
|
return true; // User is a channel operator
|
|
}
|
|
// Check if the user is an IRC operator
|
|
if (this.isIRCOp(nickname)) {
|
|
return true; // IRC operator is considered a channel operator
|
|
}
|
|
}
|
|
|
|
isChannelHalfOp(nickname, channel) {
|
|
// Check if the user is a channel half-operator
|
|
channel = this.findChannel(channel);
|
|
if (!channel) {
|
|
return false; // Channel not found
|
|
}
|
|
const channelHalfOps = this.channelData.get(channel).halfops;
|
|
if (channelHalfOps === true) {
|
|
return false;
|
|
}
|
|
if (channelHalfOps.has(nickname)) {
|
|
return true; // User is a channel half-operator
|
|
}
|
|
// Check if the user is an IRC operator
|
|
if (this.isIRCOp(nickname)) {
|
|
return true; // IRC operator is considered a channel half-operator
|
|
}
|
|
}
|
|
|
|
|
|
processChannelModeParams(channel, mode, target) {
|
|
if (!target) {
|
|
this.debugLog('warn', `No target specified for mode ${mode} on channel ${channel}`);
|
|
return false;
|
|
}
|
|
if (mode === '+o' || mode === '-o') {
|
|
var channelOps = this.channelData.get(channel).ops;
|
|
if (mode === '+o') {
|
|
if (!channelOps.has(target)) {
|
|
channelOps.add(target);
|
|
return true;
|
|
}
|
|
} else if (mode === '-o') {
|
|
if (channelOps.has(target)) {
|
|
channelOps.delete(target);
|
|
return true;
|
|
}
|
|
}
|
|
} else if (mode === '+h' || mode === '-h') {
|
|
var channelHalfOps = this.channelData.get(channel).halfops;
|
|
if (mode === '+h') {
|
|
if (!channelHalfOps.has(target)) {
|
|
channelHalfOps.add(target);
|
|
return true;
|
|
}
|
|
} else if (mode === '-h') {
|
|
if (channelHalfOps.has(target)) {
|
|
channelHalfOps.delete(target);
|
|
return true;
|
|
}
|
|
}
|
|
} else if (mode === '+v' || mode === '-v') {
|
|
var channelVoices = this.channelData.get(channel).voices;
|
|
if (mode === '+v') {
|
|
if (!channelVoices.has(target)) {
|
|
channelVoices.add(target);
|
|
return true;
|
|
}
|
|
} else if (mode === '-v') {
|
|
if (channelVoices.has(target)) {
|
|
channelVoices.delete(target);
|
|
return true;
|
|
}
|
|
}
|
|
} else if (mode === '+b' || mode === '-b') {
|
|
var channelBans = this.channelData.get(channel).bans;
|
|
if (mode === '+b') {
|
|
if (!channelBans.includes(target)) {
|
|
channelBans.push(target);
|
|
return true;
|
|
}
|
|
} else if (mode === '-b') {
|
|
if (channelBans.includes(target)) {
|
|
channelBans = channelBans.filter(ban => ban !== target);
|
|
return true;
|
|
}
|
|
}
|
|
} else if (mode === '+e' || mode === '-e') {
|
|
var channelExemptions = this.channelData.get(channel).exemptions;
|
|
if (mode === '+e') {
|
|
if (!channelExemptions.includes(target)) {
|
|
channelExemptions.push(target);
|
|
return true;
|
|
}
|
|
} else if (mode === '-e') {
|
|
if (channelExemptions.includes(target)) {
|
|
channelExemptions = channelExemptions.filter(exception => exception !== target);
|
|
return true;
|
|
}
|
|
}
|
|
} else if (mode === '+I' || mode === '-I') {
|
|
var channelInvites = this.channelData.get(channel).inviteexemptions;
|
|
if (mode === '+I') {
|
|
if (!channelInvites.includes(target)) {
|
|
channelInvites.push(target);
|
|
return true;
|
|
}
|
|
} else if (mode === '-I') {
|
|
if (channelInvites.includes(target)) {
|
|
channelInvites = channelInvites.filter(invite => invite !== target);
|
|
return true;
|
|
}
|
|
}
|
|
} else if (mode === '+l' || mode === '-l') {
|
|
if (mode === '+l') {
|
|
var result = this.setChannelMode(channel, 'l', true);
|
|
if (result === false && this.channelData.get(channel).limit === parseInt(target)) {
|
|
return false; // Mode already set with the same limit
|
|
}
|
|
this.channelData.get(channel).limit = parseInt(target);
|
|
return true;
|
|
} else {
|
|
var result = this.setChannelMode(channel, 'l', false);
|
|
if (result === false && this.channelData.get(channel).limit === null) {
|
|
return false; // Mode already unset
|
|
}
|
|
this.channelData.get(channel).limit = null;
|
|
return true;
|
|
}
|
|
} else if (mode === '+k' || mode === '-k') {
|
|
if (mode === '+k') {
|
|
var result = this.setChannelMode(channel, 'k', true);
|
|
if (result === false && this.channelData.get(channel).key === target) {
|
|
return false; // Mode already set with the same key
|
|
}
|
|
this.channelData.get(channel).key = target;
|
|
return true;
|
|
} else {
|
|
var result = this.setChannelMode(channel, 'k', false);
|
|
if (result === false && !this.channelData.get(channel).key) {
|
|
return false; // Mode already unset
|
|
}
|
|
this.channelData.get(channel).key = null;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
processChannelModes(nickname, channel, modes, params, socket) {
|
|
// Split modes into array and process each character
|
|
let modeChars = modes.split('');
|
|
let validModes = [];
|
|
let supportedChannelModes = (this.supported_channel_modes.split(',').join('') + this.supported_prefixes[0]).split('');
|
|
var serverModeMsg = '';
|
|
var target = null;
|
|
if (socket.isserver) {
|
|
let sourceUniqueId = this.uniqueids.get(nickname);
|
|
serverModeMsg = `:${sourceUniqueId} MODE ${channel} `;
|
|
} else {
|
|
if (!this.checkRegistered(socket)) {
|
|
return;
|
|
}
|
|
serverModeMsg = `:${socket.uniqueId} MODE ${channel} `;
|
|
}
|
|
var username = this.usernames.get(nickname);
|
|
var hostname = this.hostnames.get(nickname);
|
|
|
|
let modeMsg = `:${nickname}!${username}@${hostname} MODE ${channel} `;
|
|
let WTVMsg = `${nickname} has set channel mode `;
|
|
let addingFlag = false;
|
|
let paramIndex = 0;
|
|
if (!socket.isserver) {
|
|
if (modeChars.includes('o')) {
|
|
if (!this.isIRCOp(nickname) && !this.isChannelOp(nickname, channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${nickname} ${channel} :You're not a channel operator\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
else if (modeChars.includes('O')) {
|
|
if (!this.isIRCOp(nickname))
|
|
{
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${nickname} ${channel} :You're not an IRC operator\r\n`);
|
|
return;
|
|
}
|
|
} else if (modes === 'b') {
|
|
// Get the list of channel bans
|
|
var output_lines = [];
|
|
if (this.channelData.has(channel).bans) {
|
|
const bans = this.channelData.has(channel).bans;
|
|
for (const ban of bans) {
|
|
output_lines.push(`:${this.servername} 367 ${nickname} ${channel} ${ban}\r\n`);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.servername} 368 ${nickname} ${channel} :End of channel ban list\r\n`);
|
|
this.sendThrottled(socket, output_lines);
|
|
return;
|
|
} else if (modes === 'e') {
|
|
// Get the list of channel exemptions
|
|
var output_lines = [];
|
|
if (this.channelData.has(channel).exemptions) {
|
|
const exemptions = this.channelData.has(channel).exemptions;
|
|
for (const exemption of exemptions) {
|
|
output_lines.push(`:${this.servername} 348 ${nickname} ${channel} ${exemption}\r\n`);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.servername} 349 ${nickname} ${channel} :End of channel exception list\r\n`);
|
|
this.sendThrottled(socket, output_lines);
|
|
return;
|
|
} else if (modes === 'I') {
|
|
// Get the list of channel invites masks
|
|
var output_lines = [];
|
|
if (this.channelData.has(channel).invites) {
|
|
const invites = this.channelData.has(channel).invites;
|
|
for (const invite of invites) {
|
|
output_lines.push(`:${this.servername} 336 ${nickname} ${channel} ${invite}\r\n`);
|
|
}
|
|
}
|
|
output_lines.push(`:${this.servername} 337 ${nickname} ${channel} :End of channel invite list\r\n`);
|
|
this.sendThrottled(socket, output_lines);
|
|
return;
|
|
} else {
|
|
if (!this.isIRCOp(nickname) && !this.isChannelOp(nickname, channel) && !this.isChannelHalfOp(nickname, channel)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 482 ${nickname} ${channel} :You're not a channel operator\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
|
|
}
|
|
for (let j = 0; j < modeChars.length; j++) {
|
|
let param = null;
|
|
let modeStr = '';
|
|
let mc = modeChars[j];
|
|
if (mc === '+') {
|
|
addingFlag = true;
|
|
modeMsg += '+';
|
|
WTVMsg += '+';
|
|
serverModeMsg += '+';
|
|
continue;
|
|
} else if (mc === '-') {
|
|
addingFlag = false;
|
|
modeMsg += '-';
|
|
WTVMsg += '-';
|
|
serverModeMsg += '-';
|
|
continue;
|
|
}
|
|
if (!supportedChannelModes.includes(mc)) {
|
|
if (!socket.isserver) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 472 ${nickname} ${channel} :Unknown channel mode char: ${mc}\r\n`);
|
|
}
|
|
continue;
|
|
}
|
|
modeStr += mc;
|
|
// Modes that require a parameter
|
|
if ([...this.supported_prefixes[0], 'I', 'b', 'e', 'l', 'k'].includes(mc)) {
|
|
var plusminus = (addingFlag) ? "+" : "-";
|
|
param = params[paramIndex];
|
|
if (socket.isserver) {
|
|
target = this.findUserByUniqueId(param);
|
|
} else {
|
|
target = this.findUser(param);
|
|
}
|
|
if ((!target && !socket.isserver) || !this.channelData.get(channel).users.has(target)) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 401 ${nickname} ${param} :No such nick/channel\r\n`);
|
|
return;
|
|
}
|
|
var result = this.processChannelModeParams(channel, plusminus + mc, target, socket);
|
|
paramIndex++;
|
|
if (!result) {
|
|
if (params.length > 0) {
|
|
params.shift();
|
|
}
|
|
}
|
|
} else {
|
|
var result = this.setChannelMode(channel, mc, addingFlag);
|
|
if (addingFlag) {
|
|
if (mc === 'S' && this.kick_insecure_users_on_secure) {
|
|
// Kick users who do not have user mode +z
|
|
const usersInChannel = this.channelData.get(channel).users;
|
|
for (const user of usersInChannel) {
|
|
const userSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (userSocket && !userSocket.secure) {
|
|
this.safeWriteToSocket(userSocket, `:${nickname}!${username}@${socket.host} KICK ${channel} ${userSocket.nickname} :Channel is now +S (SSL-only, +z usermode required)\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${socket.host} KICK ${channel} ${userSocket.nickname} :Channel is now +S (SSL-only, +z usermode required)\r\n`, userSocket);
|
|
this.broadcastToAllServers(`:${sourceUniqueId} KICK ${channel} ${userSocket.uniqueId} :Channel is now +S (SSL-only, +z usermode required)\r\n`);
|
|
this.channelData.get(channel).users.delete(userSocket.nickname);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (result) {
|
|
WTVMsg += mc;
|
|
validModes.push(mc);
|
|
if (modeStr.length > 0) {
|
|
modeMsg += modeStr;
|
|
serverModeMsg += modeStr;
|
|
}
|
|
}
|
|
}
|
|
if (params.length > 0) {
|
|
for (let i = 0; i < params.length; i++) {
|
|
if (socket.isserver) {
|
|
modeMsg += ' ' + this.findUserByUniqueId(params[i]);
|
|
} else {
|
|
modeMsg += ' ' + params[i];
|
|
WTVMsg += ' ' + params[i];
|
|
}
|
|
serverModeMsg += ' ' + params[i];
|
|
}
|
|
}
|
|
if (modeMsg.endsWith('-') || modeMsg.endsWith('+')) {
|
|
return;
|
|
}
|
|
modeMsg += '\r\n';
|
|
if (validModes.length > 0) {
|
|
this.broadcastChannel(channel, modeMsg);
|
|
this.broadcastChannelWebTV(channel, WTVMsg);
|
|
this.broadcastToAllServers(serverModeMsg, socket);
|
|
}
|
|
}
|
|
|
|
addSocketError(socket) {
|
|
socket.error_count++;
|
|
if (socket.error_count >= 5) {
|
|
if (socket.writable) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} :ERROR :Too many errors, disconnecting\r\n`);
|
|
}
|
|
this.terminateSession(socket, true);
|
|
return;
|
|
}
|
|
setTimeout((socket) => {
|
|
if (socket) {
|
|
socket.error_count--;
|
|
}
|
|
}, 60000);
|
|
}
|
|
|
|
checkRegistered(socket, allowUnregistered = false, silent = false) {
|
|
var retval = false
|
|
if (socket.isserver) {
|
|
if (!socket.is_srv_authorized && (!socket.registered && !allowUnregistered)) {
|
|
if (socket.writable && !silent) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} ERROR :Unauthorized\r\n`);
|
|
}
|
|
this.addSocketError(socket);
|
|
} else {
|
|
retval = true; // Server is authorized
|
|
}
|
|
}
|
|
if (!socket.registered && (!socket.registered && !allowUnregistered)) {
|
|
if (socket.writable && !silent) {
|
|
this.safeWriteToSocket(socket, `:${this.servername} 451 ${socket.uniqueId} :You have not registered\r\n`);
|
|
}
|
|
this.addSocketError(socket);
|
|
} else {
|
|
retval = true; // User is registered
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
setChannelMode(channel, mode, adding) {
|
|
// Updates the channel modes for a given channel
|
|
const modes = this.channelData.get(channel).modes;
|
|
if (!modes) {
|
|
return false; // Channel not found
|
|
}
|
|
if (adding) {
|
|
if (!modes.includes(mode)) {
|
|
modes.push(mode);
|
|
return true;
|
|
}
|
|
} else {
|
|
const index = modes.indexOf(mode);
|
|
if (index !== -1) {
|
|
modes.splice(index, 1);
|
|
return true;
|
|
}
|
|
}
|
|
return false; // Mode not changed
|
|
}
|
|
|
|
debugLog(type = 'debug', ...message) {
|
|
const parsedMessage = message.map(m =>
|
|
typeof m === 'object' ? JSON.stringify(m) : String(m)
|
|
).join(' ');
|
|
|
|
// Logs debug messages to the console if debugging is enabled
|
|
switch (type) {
|
|
case 'debug':
|
|
this.logdata.push(`[DEBUG] ${parsedMessage}`);
|
|
if (this.debug) {
|
|
console.log(`[DEBUG] ${parsedMessage}`);
|
|
}
|
|
break;
|
|
case 'warn':
|
|
this.logdata.push(`[WARN] ${parsedMessage}`);
|
|
if (this.debug) {
|
|
console.warn(`[WARN] ${parsedMessage}`);
|
|
}
|
|
break;
|
|
case 'error':
|
|
this.logdata.push(`[ERROR] ${parsedMessage}`);
|
|
if (this.debug) {
|
|
console.error(`[ERROR] ${parsedMessage}`);
|
|
}
|
|
break;
|
|
case 'info':
|
|
this.logdata.push(`[INFO] ${parsedMessage}`);
|
|
if (this.debug) {
|
|
console.info(`[INFO] ${parsedMessage}`);
|
|
}
|
|
break;
|
|
default:
|
|
this.logdata.push(`[LOG] ${parsedMessage}`);
|
|
if (this.debug) {
|
|
console.log(`[LOG] ${parsedMessage}`);
|
|
}
|
|
}
|
|
if (this.logdata.length > this.max_log_lines) {
|
|
this.logdata.shift();
|
|
}
|
|
}
|
|
|
|
async doLogin(nickname, socket) {
|
|
if (await this.scanSocketForKLine(socket)) {
|
|
return; // If the socket is K-lined, exit early
|
|
}
|
|
for (const [srvSocket, serverName] of this.servers.entries()) {
|
|
if (srvSocket) {
|
|
// Compose UID message for this client
|
|
const nickname = socket.nickname;
|
|
const username = socket.username || this.usernames.get(socket.nickname) || socket.nickname;
|
|
const uniqueId = socket.uniqueId;
|
|
const signonTime = socket.timestamp || this.getDate();
|
|
const userModes = (this.usermodes.get(nickname) || []).join('');
|
|
const userinfo = socket.userinfo || '';
|
|
this.safeWriteToSocket(srvSocket, `:${this.serverId} UID ${nickname} 1 ${signonTime} +${userModes} ${username} ${socket.host} ${socket.realhost} ${socket.remoteAddress} ${uniqueId} * ${nickname} :${userinfo}\r\n`);
|
|
}
|
|
}
|
|
this.addUserUniqueId(nickname, socket.uniqueId);
|
|
this.hostnames.set(nickname, socket.host);
|
|
this.realhosts.set(nickname, socket.realhost);
|
|
this.safeWriteToSocket(socket, `:${this.servername} PRIVMSG ${socket.nickname} :\x01VERSION\x01\r\n`);
|
|
let waited = 0;
|
|
while (socket.client_version === '' && waited < 3000) {
|
|
await new Promise(res => setTimeout(res, 100));
|
|
waited += 100;
|
|
}
|
|
var output_lines = []
|
|
output_lines.push(`:${this.servername} NOTICE AUTH :Welcome to \x02${this.network}\x0F\r\n`);
|
|
output_lines.push(`:${this.servername} 001 ${nickname} :Welcome to the IRC server, ${nickname}\r\n`);
|
|
output_lines.push(`:${this.servername} 002 ${nickname} :Your host is ${this.servername}, running version zefIRCd v${this.version}\r\n`);
|
|
output_lines.push(`:${this.servername} 003 ${nickname} :This server is ready to accept commands\r\n`);
|
|
// Sort supported_channel_modes and supported_user_modes alphabetically with capitals first
|
|
function sortModesAlphaCapsFirst(modes) {
|
|
// Remove commas, split to chars, sort, then re-insert commas if needed
|
|
// If input is comma-separated groups, sort each group
|
|
return modes
|
|
.split(',')
|
|
.map(group => {
|
|
return group
|
|
.split('')
|
|
.sort((a, b) => {
|
|
// Capital letters first, then lowercase, then numbers/symbols
|
|
if (a === b) return 0;
|
|
const isACap = a >= 'A' && a <= 'Z';
|
|
const isBCap = b >= 'A' && b <= 'Z';
|
|
const isALower = a >= 'a' && a <= 'z';
|
|
const isBLower = b >= 'a' && b <= 'z';
|
|
if (isACap && !isBCap) return -1;
|
|
if (!isACap && isBCap) return 1;
|
|
if (isALower && !isBLower) return -1;
|
|
if (!isALower && isBLower) return 1;
|
|
return a.localeCompare(b);
|
|
})
|
|
.join('');
|
|
})
|
|
.join(',');
|
|
}
|
|
let channelModesParts = this.supported_channel_modes.split(',');
|
|
if (channelModesParts.length > 1) {
|
|
let modesToSort = channelModesParts.slice(0, -1).join('').split('');
|
|
modesToSort.push(...this.supported_prefixes[0].split(''));
|
|
modesToSort = Array.from(new Set(modesToSort)); // remove duplicates
|
|
modesToSort.sort();
|
|
var sortedModesWithParams = modesToSort.join('');
|
|
}
|
|
var channelModes = this.supported_channel_modes.split(',').join('') + this.supported_prefixes[0];
|
|
var sortedChannelModes = sortModesAlphaCapsFirst(channelModes).replace(/,/g, '');
|
|
var sortedUserModes = sortModesAlphaCapsFirst(this.supported_user_modes);
|
|
output_lines.push(`:${this.servername} 004 ${nickname} ${this.servername} zefIRCd-${this.version} ${sortedUserModes} ${sortedChannelModes} ${sortedModesWithParams}\r\n`);
|
|
for (const caps of this.caps) {
|
|
output_lines.push(`:${this.servername} 005 ${caps}\r\n`);
|
|
}
|
|
socket.registered = true;
|
|
output_lines.push(`:${this.servername} 042 ${nickname} ${socket.uniqueId} :your unique ID\r\n`);
|
|
|
|
output_lines.push(...(await this.doMOTD(nickname)));
|
|
|
|
const visibleClients = Array.from(this.nicknames.values()).filter(nick => {
|
|
const modes = this.usermodes.get(nick) || [];
|
|
return !modes.includes('i');
|
|
});
|
|
const invisibleClients = Array.from(this.nicknames.values()).filter(nick => {
|
|
const modes = this.usermodes.get(nick) || [];
|
|
return modes.includes('i');
|
|
});
|
|
const operClients = Array.from(this.nicknames.values()).filter(nick => {
|
|
const modes = this.usermodes.get(nick) || [];
|
|
return modes.includes('o');
|
|
});
|
|
const serverCount = this.servers.size + 1; // Include this server
|
|
output_lines.push(`:${this.servername} 251 ${nickname} :There are ${visibleClients.length} visible users and ${invisibleClients.length} invisible users on this server\r\n`);
|
|
if (operClients.length > 0) {
|
|
output_lines.push(`:${this.servername} 252 ${nickname} ${operClients.length} :operator(s) online\r\n`);
|
|
}
|
|
if (this.channelData.size > 0) {
|
|
output_lines.push(`:${this.servername} 253 ${nickname} ${this.channelData.size} :channels formed\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 255 ${nickname} :I have ${this.clients.length} clients and ${serverCount} servers\r\n`);
|
|
output_lines.push(`:${this.servername} 265 ${nickname} :Current Local Users: ${this.clients.length} Max: ${this.clientpeak}\r\n`);
|
|
const globalUsers = this.countGlobalUsers();
|
|
this.globalpeak = Math.max(this.globalpeak, this.countGlobalUsers());
|
|
var totalSockets = this.clients.length + this.servers.size;
|
|
this.socketpeak = Math.max(this.socketpeak, totalSockets);
|
|
|
|
output_lines.push(`:${this.servername} 266 ${nickname} :Current Global Users: ${globalUsers} Max: ${this.globalpeak}\r\n`);
|
|
output_lines.push(`:${this.servername} 250 ${nickname} :Highest connection count: ${this.socketpeak} (${this.clientpeak} clients) (${this.totalConnections} connections received)\r\n`);
|
|
var usermodes = this.usermodes.get(nickname);
|
|
if (!usermodes || usermodes === true) {
|
|
usermodes = [];
|
|
}
|
|
for (const mode of this.default_user_modes) {
|
|
if (!usermodes.includes(mode)) {
|
|
usermodes.push(mode);
|
|
}
|
|
}
|
|
if (socket.secure) {
|
|
usermodes.push('z');
|
|
}
|
|
this.usermodes.set(nickname, [...usermodes]);
|
|
if (usermodes.includes('x')) {
|
|
socket.host = this.filterHostname(socket, socket.realhost);
|
|
if (socket.client_caps && socket.client_caps.includes('CHGHOST')) {
|
|
output_lines.push(`:${socket.nickname}!${socket.username}@${socket.host} CHGHOST ${socket.username} ${socket.host}\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 396 ${socket.nickname} ${socket.host} :is now your visible host\r\n`);
|
|
}
|
|
output_lines.push(`:${this.servername} 221 ${nickname} :+${this.usermodes.get(nickname).join('')}\r\n`);
|
|
await this.sendThrottled(socket, output_lines);
|
|
this.broadcastConnection(socket);
|
|
}
|
|
}
|
|
|
|
module.exports = WTVIRC; |