1549 lines
96 KiB
JavaScript
1549 lines
96 KiB
JavaScript
const net = require('net');
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const dns = require('dns');
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class WTVIRC {
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/*
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* WTVIRC - A simple IRC server implementation for WebTV
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* Tested with WebTV and KvIRC
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* This is a basic implementation and does not cover all IRC features.
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* It supports basic commands like NICK, USER, JOIN, PART, PRIVMSG, NOTICE, TOPIC, AWAY, MODE, KICK, and PING.
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* TODO: Proper channel mode support, implement invite, enforce invite only channel mode.
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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.version =
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this.host = host;
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this.port = port;
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this.debug = debug;
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this.server = null;
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this.clients = [];
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this.usernames = new Map(); // nickname -> username
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this.channels = new Map();
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this.channelops = new Map(); // channel -> Set of operators
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this.channelvoices = new Map(); // channel -> Set of voiced users
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this.channeltopics = new Map(); // channel -> topic
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this.channelinvites = new Map(); // channel -> Set of invited users
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this.channelbans = new Map(); // channel -> Set of banned users
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this.channelexemptions = new Map(); // channel -> Set of exempted users
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this.inviteexceptions = new Map(); // channel -> Set of users who can bypass invite only mode
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this.channelmodes = new Map(); // channel -> Array of modes (e.g. ['m', 'i', 'l10', 'k secret'])
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this.usertimestamps = new Map(); // nickname -> timestamp since last message
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this.usermodes = new Map(); // nickname -> Array of modes (e.g. ['w', 'i'])
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this.usersignontimestamps = new Map(); // nickname -> timestamp since user signed on
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this.nicknames = new Map(); // socket -> nickname
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this.awaymsgs = new Map(); // nickname -> away message
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this.nicklen = 30;
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this.maxbans = 100;
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this.maxlimit = 50;
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this.maxexcept = 100;
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this.maxinvite = 100;
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this.maxkeylen = 50;
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this.channellimit = 50;
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this.topiclen = 390;
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this.kicklen = 390;
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this.awaylen = 200;
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this.channelprefixes = ['#','&'];
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this.default_channel_modes = ['t'];
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this.servername = 'irc.local';
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this.server_start_time = Date.now();
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this.oper_username = minisrv_config.config.irc_oper_username || 'minisrv';
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this.oper_password = minisrv_config.config.irc_oper_password || 'changeme573';
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this.caps = `AWAYLEN=${this.awaylen} CHANTYPES=${this.channelprefixes.join('')} PREFIX=(ov)@+ CHANMODES=beI,k,l,imnp SAFELIST MAXLIST=b:${this.maxbans},e:${this.maxexcept},i:${this.maxinvite},k:${this.maxkeylen},l:${this.maxlimit} CHANLIMIT=${this.channelprefixes.join('')}:${this.channellimit} NICKLEN=${this.nicklen} TOPICLEN=${this.topiclen} KICKLEN=${this.kicklen}`;
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}
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start() {
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this.server_start_time = Date.now();
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this.server = net.createServer(socket => {
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socket.setEncoding('utf8');
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this.clients.push(socket);
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let registered = false;
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let nickname = '';
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let username = '';
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let channel = '';
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let host = this.getHostname(socket);
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let timestamp = Date.now();
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if (this.debug) {
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const originalWrite = socket.write;
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socket.write = function (...args) {
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var log_args = args.map(arg => {
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if (typeof arg === 'string') {
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return arg.replace(/\r\n/g, '\\r\\n').replace(/\n/g, '\\n');
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}
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return arg;
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});
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console.log('<', ...log_args);
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return originalWrite.apply(socket, args);
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};
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}
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socket.write(`:${this.servername} NOTICE AUTH :Welcome to minisrv IRC Server\r\n`);
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socket.on('data', data => {
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const lines = data.split(/\r\n|\n/).filter(Boolean);
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for (let line of lines) {
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if (this.debug) {
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console.log(`> ${line}`);
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}
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const [command, ...params] = line.trim().split(' ');
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switch (command.toUpperCase()) {
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case 'OPER':
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if (!registered) {
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socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
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break;
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}
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if (params.length < 2) {
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socket.write(`:${this.servername} 461 ${nickname} OPER :Not enough parameters\r\n`);
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break;
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}
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const [operName, operPassword] = params;
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if (operName !== this.oper_username) {
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socket.write(`:${this.servername} 491 ${nickname} :No permission\r\n`);
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break;
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}
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if (operPassword !== this.oper_password) {
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socket.write(`:${this.servername} 464 ${nickname} :Password incorrect\r\n`);
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break;
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}
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var usermodes = this.usermodes.get(nickname) || [];
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if (usermodes === true) {
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usermodes = [];
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}
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this.usermodes.set(nickname, [...usermodes, 'o']);
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socket.write(`:${this.servername} 381 ${nickname} :You are now an IRC operator\r\n`);
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} +o\r\n`);
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break;
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case 'UPTIME':
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if (!registered) {
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socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
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break;
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}
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const uptime = Math.floor((Date.now() - this.server_start_time) / 1000);
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const days = Math.floor(uptime / 86400);
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const hours = Math.floor((uptime % 86400) / 3600);
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const minutes = Math.floor((uptime % 3600) / 60);
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const seconds = uptime % 60;
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socket.write(`:${this.servername} 242 ${nickname} :Server uptime is ${days} days, ${hours} hours, ${minutes} minutes, ${seconds} seconds\r\n`);
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break;
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case 'KICK':
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if (!registered) {
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socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
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break;
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}
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if (params.length < 2) {
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socket.write(`:${this.servername} 461 ${nickname} KICK :Not enough parameters\r\n`);
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break;
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}
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this.usertimestamps.set(nickname, Date.now());
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channel = params[0];
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const targetNick = params[1];
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if (!this.channels.has(channel)) {
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socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
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break;
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}
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if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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} else {
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if (!this.channelops.get(channel).has(nickname)) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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if (!this.channels.get(channel).has(targetNick)) {
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socket.write(`:${this.servername} 441 ${nickname} ${targetNick} :They aren't on that channel\r\n`);
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break;
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}
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this.channels.get(channel).delete(targetNick);
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socket.write(`:${nickname}!${username}@${host} KICK ${channel} ${targetNick}\r\n`);
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this.broadcastUser(nickname, `:${nickname}!${username}@${host} KICK ${channel} ${targetNick}\r\n`, socket);
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break;
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case 'TOPIC':
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if (!registered) {
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socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
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break;
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}
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if (params.length < 1) {
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socket.write(`:${this.servername} 461 ${nickname} TOPIC :Not enough parameters\r\n`);
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break;
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}
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const chanmodes = this.channelmodes.get(channel) || [];
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if (chanmodes.includes('t')) {
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// Only allow channel operators to change the topic if +t is set
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if (!this.channelops.has(channel) || !this.channelops.get(channel).has(nickname)) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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this.usertimestamps.set(nickname, Date.now());
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channel = params[0];
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if (!this.channels.has(channel)) {
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socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
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break;
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}
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if (params.length > 1) {
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var topic = params.slice(1).join(' ');
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if (topic.startsWith(':')) {
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topic = topic.slice(1);
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}
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this.channeltopics.set(channel, topic);
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socket.write(`:${this.servername} 332 ${nickname} ${channel} :${topic}\r\n`);
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this.broadcastUser(nickname, `:${nickname}!${username}@${host} TOPIC ${channel} :${topic}\r\n`, socket);
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} else {
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const topic = this.channeltopics.get(channel) || 'No topic set';
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socket.write(`:${this.servername} 331 ${nickname} ${channel} :${topic}\r\n`);
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}
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break;
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case "AWAY":
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if (!registered) {
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socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
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break;
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}
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this.usertimestamps.set(nickname, Date.now());
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if (params.length > 0) {
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socket.write(`:${this.servername} 301 ${nickname} :You are now marked as away\r\n`);
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let awayMsg = params.join(' ');
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if (awayMsg.startsWith(':')) {
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awayMsg = awayMsg.slice(1);
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}
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this.awaymsgs.set(nickname, awayMsg);
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} else {
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socket.write(`:${this.servername} 305 ${nickname} :You are no longer marked as away\r\n`);
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this.awaymsgs.delete(nickname);
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}
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break;
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case 'CAP':
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// Minimal CAP support: just acknowledge LS
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if (params[0] && params[0].toUpperCase() === 'LS') {
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socket.write('CAP * LS :\r\n');
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}
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break;
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case 'MODE':
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if (!registered) {
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socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
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break;
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}
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if (params.length < 1) {
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socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
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break;
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}
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channel = params[0];
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var isChannel = true;
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if (!this.channels.has(channel)) {
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isChannel = false;
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}
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// Check if 'channel' is actually a user (nickname) instead of a channel name
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let isUser = false;
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for (const prefix of this.channelprefixes) {
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if (channel.startsWith(prefix)) {
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isUser = false;
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break;
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} else {
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isUser = true;
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}
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}
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if (!isChannel && !isUser) {
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socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel or user\r\n`);
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break;
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}
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const mode = params[1];
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if (isUser) {
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if (!this.isIRCOp(nickname) && channel !== nickname) {
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socket.write(`:${this.servername} 501 ${nickname} :Cannot set modes on other users\r\n`);
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} else {
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var usermodes = this.usermodes.get(nickname) || [];
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if (usermodes === true) {
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usermodes = [];
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}
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if (!mode) {
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// List user modes
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if (usermodes.length === 0) {
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socket.write(`:${this.servername} 324 ${nickname} ${channel} :No modes set\r\n`);
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} else {
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const modes = usermodes.map(m => (m.startsWith('+') ? m : '+' + m)).join(' ');
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socket.write(`:${this.servername} 324 ${nickname} ${channel} :${modes}\r\n`);
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}
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} else if (mode.startsWith('+h')) {
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this.usermodes.set(nickname, [...usermodes, 'h']);
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host = this.getHostname(socket);
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} +h\r\n`);
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} else if (mode.startsWith('-h')) {
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this.usermodes.set(nickname, (usermodes).filter(m => m !== 'h'));
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host = this.getHostname(socket);
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} -h\r\n`);
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} else if (mode.startsWith('+w')) {
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this.usermodes.set(nickname, [...usermodes, 'w']);
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} +w\r\n`);
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} else if (mode.startsWith('-w')) {
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this.usermodes.set(nickname, (usermodes).filter(m => m !== 'w'));
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} -w\r\n`);
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} else if (mode.startsWith('+i')) {
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this.usermodes.set(nickname, [...usermodes, 'i']);
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} +i\r\n`);
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} else if (mode.startsWith('-i')) {
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this.usermodes.set(nickname, (usermodes).filter(m => m !== 'i'));
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socket.write(`:${nickname}!${username}@${host} MODE ${nickname} -i\r\n`);
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}
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}
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break;
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}
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if (!mode) {
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var chan_modes = this.channelmodes.get(channel);
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if (!chan_modes || chan_modes === true) {
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chan_modes = [];
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}
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chan_modes = chan_modes.map(mode => {
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if (typeof mode === 'string' && !mode.startsWith('+')) {
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return '+' + mode;
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}
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return mode;
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});
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chan_modes.forEach(m => {
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socket.write(`:${this.servername} 324 ${nickname} ${channel} ${m}\r\n`);
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});
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break;
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} else if (mode.startsWith('+m')) {
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if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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} else {
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if (!this.channelops.get(channel).has(nickname)) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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var chan_modes = this.channelmodes.get(channel);
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if (!chan_modes || chan_modes === true) {
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chan_modes = [];
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}
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if (!chan_modes.includes('m')) {
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this.channelmodes.set(channel, [...chan_modes, 'm']);
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}
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this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +m\r\n`);
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break;
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} else if (mode.startsWith('-m')) {
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if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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} else {
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if (!this.channelops.get(channel).has(nickname)) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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var chan_modes = this.channelmodes.get(channel);
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if (!chan_modes || chan_modes === true) {
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chan_modes = [];
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}
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this.channelmodes.set(channel, (chanmodes).filter(m => m !== 'm'));
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this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -m\r\n`);
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break;
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} else if (mode.startsWith("+I")) {
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if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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} else {
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if (!this.channelops.get(channel).has(nickname)) {
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
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break;
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}
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}
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if (params.length < 3) {
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socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
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break;
|
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}
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const inviteMask = params[2];
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if (!inviteMask) {
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socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
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break;
|
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}
|
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if (!this.inviteexceptions.has(channel)) {
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this.inviteexceptions.set(channel, new Set());
|
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}
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this.inviteexceptions.get(channel).add(inviteMask);
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socket.write(`:${this.servername} 346 ${nickname} ${channel} ${inviteMask}\r\n`);
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this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +I ${inviteMask}\r\n`, socket);
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break;
|
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} else if (mode.startsWith("-I")) {
|
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if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
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socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
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break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
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const inviteMask = params[2];
|
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if (!inviteMask) {
|
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socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
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break;
|
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}
|
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if (this.inviteexceptions.has(channel)) {
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this.inviteexceptions.get(channel).delete(inviteMask);
|
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socket.write(`:${this.servername} 347 ${nickname} ${channel} ${inviteMask}\r\n`);
|
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this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -I ${inviteMask}\r\n`, socket);
|
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break;
|
|
} else {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
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break;
|
|
}
|
|
} else if (mode.startsWith('+l')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
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break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const limit = parseInt(params[2], 10);
|
|
if (isNaN(limit) || limit < 0) {
|
|
socket.write(`:${this.servername} 501 ${nickname} :Invalid channel limit\r\n`);
|
|
break;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
// replace limit mode if it exists
|
|
chan_modes = chan_modes.filter(m => !/^l\d+$/.test(m));
|
|
this.channelmodes.set(channel, [...chan_modes, `l${limit}`]);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +l ${limit}\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-l')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => !/^l\d+$/.test(m)));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -l\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('+k')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const key = params[2];
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, `k ${key}`]);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +k ${key}\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-k')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => !/^k.*$/.test(m)));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -k\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('+i')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 'i']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +i\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-i')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chanmodes).filter(m => m !== 'i'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -i\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('+o')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelops.set(channel, (this.channelops.get(channel) || new Set()).add(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +o ${target_nickname}\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-o')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelops.set(channel, (this.channelops.get(channel) || new Set()).delete(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -o ${target_nickname}\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('+v')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelvoices.set(channel, (this.channelvoices.get(channel) || new Set()).add(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +v ${target_nickname}\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-v')) {
|
|
if (params.length < 3) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const target_nickname = params[2];
|
|
this.channelvoices.set(channel, (this.channelvoices.get(channel) || new Set()).delete(target_nickname));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -v ${target_nickname}\r\n`, socket);
|
|
break;
|
|
} else if (mode.startsWith('+b')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const banMask = params[2];
|
|
if (!banMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelbans.has(channel)) {
|
|
this.channelbans.set(channel, new Set());
|
|
}
|
|
this.channelbans.get(channel).add(banMask);
|
|
socket.write(`:${this.servername} 367 ${nickname} ${channel} ${banMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +b ${banMask}\r\n`, socket);
|
|
break
|
|
} else if (mode.startsWith('-b')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const banMask = params[2];
|
|
if (!banMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (this.channelbans.has(channel)) {
|
|
this.channelbans.get(channel).delete(banMask);
|
|
socket.write(`:${this.servername} 368 ${nickname} ${channel} ${banMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -b ${banMask}\r\n`, socket);
|
|
break
|
|
} else {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
break
|
|
}
|
|
} else if (mode.startsWith('+e')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const exemptMask = params[2];
|
|
if (!exemptMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelexemptions.has(channel)) {
|
|
this.channelexemptions.set(channel, new Set());
|
|
}
|
|
this.channelexemptions.get(channel).add(exemptMask);
|
|
socket.write(`:${this.servername} 347 ${nickname} ${channel} ${exemptMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +e ${exemptMask}\r\n`, socket);
|
|
break;
|
|
} else if (mode.startsWith('-e')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
const exemptMask = params[2];
|
|
if (!exemptMask) {
|
|
socket.write(`:${this.servername} 461 ${nickname} MODE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
if (this.channelexemptions.has(channel)) {
|
|
this.channelexemptions.get(channel).delete(exemptMask);
|
|
socket.write(`:${this.servername} 348 ${nickname} ${channel} ${exemptMask}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -e ${exemptMask}\r\n`, socket);
|
|
break;
|
|
} else {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
} else if (mode.startsWith('+p')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 'p']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +p\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-p')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 'p'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -p\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('+t')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, [...chan_modes, 't']);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} +t\r\n`);
|
|
break;
|
|
} else if (mode.startsWith('-t')) {
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
var chan_modes = this.channelmodes.get(channel);
|
|
if (!chan_modes || chan_modes === true) {
|
|
chan_modes = [];
|
|
}
|
|
this.channelmodes.set(channel, (chan_modes).filter(m => m !== 't'));
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} MODE ${channel} -t\r\n`);
|
|
break;
|
|
} else if (mode === 'b') {
|
|
if (this.channelbans.has(channel)) {
|
|
const bans = Array.from(this.channelbans.get(channel));
|
|
for (const ban of bans) {
|
|
socket.write(`:${this.servername} 367 ${nickname} ${channel} ${ban}\r\n`);
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 368 ${nickname} ${channel} :End of channel ban list\r\n`);
|
|
break;
|
|
} else {
|
|
socket.write(`:${this.servername} 501 ${nickname} :Unknown MODE flag\r\n`);
|
|
break;
|
|
}
|
|
case 'NICK':
|
|
var new_nickname = params[0];
|
|
if (!new_nickname || new_nickname.length < 1) {
|
|
socket.write(`:${this.servername} 431 * :No nickname\r\n`);
|
|
break;
|
|
}
|
|
if (new_nickname.length > 30) {
|
|
socket.write(`:${this.servername} 432 * ${new_nickname} :Erroneus nickname\r\n`);
|
|
break;
|
|
}
|
|
var result = Array.from(this.nicknames.values()).find(nick => nick === new_nickname);
|
|
if (result) {
|
|
socket.write(`:${this.servername} 433 * ${new_nickname} :Nickname is already in use\r\n`);
|
|
break;
|
|
}
|
|
if (!nickname) {
|
|
// If no nickname is set, set it now
|
|
nickname = new_nickname;
|
|
}
|
|
this.nicknames.set(socket, nickname);
|
|
if (nickname && this.usernames.has(nickname)) {
|
|
this.usernames.delete(nickname);
|
|
}
|
|
this.usernames.set(nickname, username);
|
|
if (nickname && nickname !== new_nickname) {
|
|
socket.write(`:${nickname}!${username}@${host} NICK :${new_nickname}\r\n`);
|
|
this.broadcastUser(nickname, `:${nickname}!${username}@${host} NICK :${new_nickname}\r\n`, socket);
|
|
nickname = new_nickname;
|
|
this.nicknames.set(socket, nickname);
|
|
// Update nickname in all channels
|
|
for (const [ch, users] of this.channels.entries()) {
|
|
if (users.has(nickname)) {
|
|
users.delete(nickname);
|
|
users.add(new_nickname);
|
|
}
|
|
}
|
|
// Update away message mapping if present
|
|
if (this.awaymsgs.has(nickname)) {
|
|
const msg = this.awaymsgs.get(nickname);
|
|
this.awaymsgs.delete(nickname);
|
|
this.awaymsgs.set(new_nickname, msg);
|
|
}
|
|
// Update user timestamp
|
|
if (this.usertimestamps.has(nickname)) {
|
|
this.usertimestamps.delete(nickname);
|
|
}
|
|
this.usertimestamps.set(new_nickname, Date.now());
|
|
if (this.usersignontimestamps.has(nickname)) {
|
|
this.usersignontimestamps.delete(nickname);
|
|
}
|
|
this.usersignontimestamps.set(new_nickname, timestamp);
|
|
}
|
|
if (!registered && nickname && username) {
|
|
registered = true;
|
|
this.usertimestamps.set(nickname, Date.now());
|
|
this.usersignontimestamps.set(new_nickname, timestamp);
|
|
this.doLogin(nickname, socket);
|
|
}
|
|
break;
|
|
case 'USER':
|
|
username = params[0];
|
|
if (!registered && nickname && username) {
|
|
registered = true;
|
|
this.usernames.set(nickname, username);
|
|
this.usertimestamps.set(nickname, Date.now());
|
|
this.usersignontimestamps.set(new_nickname, timestamp);
|
|
this.doLogin(nickname, socket);
|
|
}
|
|
break;
|
|
case 'JOIN':
|
|
var key = null;
|
|
if (!registered) {
|
|
socket.write(`:irc.local 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (params.length == 2) {
|
|
key = params[1];
|
|
}
|
|
if (channel.includes(',')) {
|
|
var channels = channel.split(',');
|
|
} else {
|
|
var channels = [channel];
|
|
}
|
|
for (const ch of channels) {
|
|
var joinLine = '';
|
|
if (key) {
|
|
joinLine = `JOIN ${ch} ${key}`;
|
|
} else {
|
|
joinLine = `JOIN ${ch}`;
|
|
}
|
|
// Simulate a JOIN command for each channel
|
|
const [command, ...params] = joinLine.trim().split(' ');
|
|
var validChannel = false;
|
|
this.channelprefixes.forEach(prefix => {
|
|
if (ch.startsWith(prefix)) {
|
|
validChannel = true;
|
|
}
|
|
});
|
|
if (!validChannel) {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${ch} :No such channel\r\n`);
|
|
continue; // Skip this channel
|
|
}
|
|
if (!this.channels.has(ch)) {
|
|
this.createChannel(ch, nickname);
|
|
}
|
|
if (this.channelbans.has(ch)) {
|
|
if (this.isBanned(nickname, ch)) {
|
|
socket.write(`:${this.servername} 474 ${nickname} ${ch} :Cannot join channel (+b)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (this.channelmodes.has(ch)) {
|
|
const modes = this.channelmodes.get(ch);
|
|
if (!modes || modes === true) {
|
|
continue; // Skip if no modes are set
|
|
}
|
|
const keyMode = modes.find(m => typeof m === 'string' && m.startsWith('k '));
|
|
if (keyMode) {
|
|
const channelKey = keyMode.split(' ')[1];
|
|
// The key must be provided as the second parameter in the JOIN command
|
|
// params[1] is the key for the first channel, params[2] for the second, etc.
|
|
// For simplicity, assume only one channel per JOIN or the key is always params[1]
|
|
const providedKey = params[1];
|
|
if (!providedKey || providedKey !== channelKey) {
|
|
socket.write(`:${this.servername} 475 ${nickname} ${ch} :Cannot join channel (+k)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
if (this.channelmodes.has(ch) && this.channelmodes.get(ch).includes('i')) {
|
|
// Channel is invite-only (+i)
|
|
// For simplicity, let's assume you have an invited list per channel (not implemented yet)
|
|
// We'll use a Map: this.channelinvites = new Map(); // channel -> Set of invited nicks
|
|
if (!this.channelinvites) this.channelinvites = new Map();
|
|
const invited = this.channelinvites.get(ch) || new Set();
|
|
let isInvited = false;
|
|
for (const inviteMask of invited) {
|
|
// inviteMask can be nick!user@host or wildcards
|
|
const maskParts = inviteMask.split(/[!@]/);
|
|
const nickPart = maskParts[0] || '*';
|
|
const userPart = maskParts[1] || '*';
|
|
const hostPart = maskParts[2] || '*';
|
|
// Build user mask for this user
|
|
const userMask = `${nickname}!${username}@${host}`;
|
|
// Convert mask to regex
|
|
const maskRegex = new RegExp('^' +
|
|
inviteMask
|
|
.replace(/\./g, '\\.')
|
|
.replace(/\*/g, '.*')
|
|
.replace(/\?/g, '.') +
|
|
'$');
|
|
if (maskRegex.test(userMask)) {
|
|
isInvited = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!invited.has(nickname) && !isInvited) {
|
|
socket.write(`:${this.servername} 473 ${nickname} ${ch} :Cannot join channel (+i)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
if (!isInvited) {
|
|
invited.delete(nickname);
|
|
}
|
|
this.channelinvites.set(ch, invited);
|
|
}
|
|
}
|
|
// Check if the user is in too many channels
|
|
if (this.getChannelCount(nickname) >= this.channellimit) {
|
|
socket.write(`:${this.servername} 405 ${nickname} ${ch} :Too many channels\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
// Check if the channel user limit has been reached
|
|
if (this.channelmodes.has(ch) && this.channelmodes.get(ch).includes('l')) {
|
|
const limitMatch = this.channelmodes.get(ch).match(/l(\d+)/);
|
|
if (limitMatch) {
|
|
const limit = parseInt(limitMatch[1], 10);
|
|
if (this.channels.has(ch) && this.channels.get(ch).size >= limit) {
|
|
socket.write(`:${this.servername} 471 ${nickname} ${ch} :Cannot join channel (+l)\r\n`);
|
|
continue; // Skip joining this channel
|
|
}
|
|
}
|
|
}
|
|
// If we reach here, the user can join the channel
|
|
// Reuse the JOIN logic for each channel
|
|
// Only run the code after $PLACEHOLDER$ for each channel
|
|
// (excluding the code before $PLACEHOLDER$ to avoid duplicate checks)
|
|
// You can refactor this logic into a helper if needed
|
|
this.usertimestamps.set(nickname, Date.now());
|
|
socket.write(`:${nickname}!${username}@${host} JOIN ${ch}\r\n`);
|
|
if (!this.channels.has(ch)) {
|
|
this.channels.set(ch, new Set());
|
|
}
|
|
this.channels.get(ch).add(nickname);
|
|
if (!this.channelops.has(ch) || this.channelops.get(ch) === true) {
|
|
this.channelops.set(ch, new Set());
|
|
this.channelops.get(ch).add(nickname);
|
|
}
|
|
this.broadcastUser(nickname, `:${nickname}!${username}@${host} JOIN ${ch}\r\n`, socket);
|
|
if (this.channeltopics.has(ch)) {
|
|
const topic = this.channeltopics.get(ch);
|
|
socket.write(`:${this.servername} 332 ${nickname} ${ch} :${topic}\r\n`);
|
|
} else {
|
|
socket.write(`:${this.servername} 331 ${nickname} ${ch} :No topic is set\r\n`);
|
|
}
|
|
var users = this.getUsersInChannel(ch);
|
|
if (users.length > 0) {
|
|
socket.write(`:${this.servername} 353 ${nickname} = ${ch} :${users.join(' ')}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 366 ${nickname} ${ch} :End of /NAMES list\r\n`);
|
|
}
|
|
break;
|
|
case 'NAMES':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
socket.write(`:${this.servername} 461 ${nickname} NAMES :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (!this.channels.has(channel)) {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
var users = this.getUsersInChannel(channel);
|
|
if (users.length > 0) {
|
|
socket.write(`:${this.servername} 353 ${nickname} = ${channel} :${users.join(' ')}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 366 ${nickname} ${channel} :End of /NAMES list\r\n`);
|
|
break;
|
|
case 'PART':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
channel = params[0];
|
|
if (!this.channels.has(channel) || !this.channels.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 442 ${nickname} ${channel} :You're not on that channel\r\n`);
|
|
break;
|
|
}
|
|
this.usertimestamps.set(nickname, Date.now());
|
|
if (params.length == 2) {
|
|
let reason = params.join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
socket.write(`:${nickname}!${username}@${host} PART ${channel} :${reason}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} PART ${channel} :${reason}\r\n`, socket);
|
|
} else {
|
|
socket.write(`:${nickname}!${username}@${host} PART ${channel}\r\n`);
|
|
this.broadcastChannel(channel, `:${nickname}!${username}@${host} PART ${channel}\r\n`, socket);
|
|
}
|
|
if (this.channels.has(channel)) {
|
|
this.channels.get(channel).delete(nickname);
|
|
if (this.channels.get(channel).size === 0) {
|
|
this.channels.delete(channel);
|
|
this.channelops.delete(channel);
|
|
this.channelvoices.delete(channel);
|
|
this.channeltopics.delete(channel);
|
|
this.channelbans.delete(channel);
|
|
this.channelexemptions.delete(channel);
|
|
this.channelinvites.delete(channel);
|
|
this.channelmodes.delete(channel);
|
|
}
|
|
}
|
|
break;
|
|
case 'INVITE':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${nickname} INVITE :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const invitee = params[0];
|
|
channel = params[1];
|
|
if (!this.channels.has(channel)) {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${channel} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channelops.has(channel) || this.channelops.get(channel) === true) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
} else {
|
|
if (!this.channelops.get(channel).has(nickname)) {
|
|
socket.write(`:${this.servername} 482 ${nickname} ${channel} :You're not channel operator\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (!this.nicknames.has(socket)) {
|
|
socket.write(`:${this.servername} 401 ${nickname} ${invitee} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
const inviteeSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === invitee);
|
|
if (!inviteeSocket) {
|
|
socket.write(`:${this.servername} 401 ${nickname} ${invitee} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
if (!this.channels.has(channel) || !this.channels.get(channel).has(invitee)) {
|
|
if (!this.channelinvites) this.channelinvites = new Map();
|
|
const invited = this.channelinvites.get(channel) || new Set();
|
|
invited.add(invitee);
|
|
this.channelinvites.set(channel, invited);
|
|
socket.write(`:${this.servername} 341 ${nickname} ${invitee} ${channel} :Invited to channel\r\n`);
|
|
inviteeSocket.write(`:${this.servername} 341 ${nickname} ${invitee} ${channel} :You have been invited to join ${channel}\r\n`);
|
|
break;
|
|
} else {
|
|
socket.write(`:${this.servername} 443 ${nickname} ${invitee} ${channel} :${invitee} is already on that channel\r\n`);
|
|
break;
|
|
}
|
|
case 'LIST':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
let channelsToList;
|
|
if (params.length > 0 && params[0]) {
|
|
channelsToList = params[0].split(',').filter(ch => ch.length > 0);
|
|
} else {
|
|
channelsToList = Array.from(this.channels.keys());
|
|
}
|
|
socket.write(`:${this.servername} 321 ${nickname} Channel :Users\r\n`);
|
|
for (const channel of channelsToList) {
|
|
if (this.channelmodes.has(channel)) {
|
|
const modes = this.channelmodes.get(channel);
|
|
if (Array.isArray(modes) ? modes.includes('p') : (typeof modes === 'string' && modes.includes('p'))) {
|
|
continue; // Skip +p (private) channels
|
|
}
|
|
}
|
|
const users = this.getUsersInChannel(channel);
|
|
const topic = this.channeltopics.get(channel) || 'No topic is set';
|
|
socket.write(`:${this.servername} 322 ${nickname} ${channel} ${users.length} :${topic}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 323 ${nickname} :End of /LIST\r\n`);
|
|
break;
|
|
case 'WHO':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (!params[0]) {
|
|
socket.write(`:${this.servername} 461 ${nickname} WHO :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const target = params[0];
|
|
if (target.startsWith('#')) {
|
|
// WHO for channel
|
|
if (this.channels.has(target)) {
|
|
const users = this.getUsersInChannel(target);
|
|
for (const user of users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock) {
|
|
socket.write(`:${this.servername} 352 ${nickname} * ${user} ${sock.remoteAddress} ${this.servername} ${user} H :0 ${user}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 315 ${nickname} ${target} :End of /WHO list\r\n`);
|
|
} else {
|
|
// WHO for nickname
|
|
let found = false;
|
|
for (const [sock, nick] of this.nicknames.entries()) {
|
|
if (nick === target) {
|
|
found = true;
|
|
socket.write(`:${this.servername} 352 ${nickname} * ${nick} ${sock.remoteAddress} ${this.servername} ${nick} H :0 ${nick}\r\n`);
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
socket.write(`:${this.servername} 401 ${nickname} ${target} :No such nick/channel\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 315 ${nickname} ${target} :End of /WHO list\r\n`);
|
|
break;
|
|
}
|
|
break;
|
|
case 'PRIVMSG':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
this.usertimestamps.set(nickname, Date.now());
|
|
if (params[0]) {
|
|
const target = params[0];
|
|
if (target.startsWith('#')) {
|
|
// Channel message
|
|
if (this.channelmodes.has(target) && this.channelmodes.get(target).includes('m')) {
|
|
// Channel is moderated (+m)
|
|
var voices = this.channelvoices.get(target) || new Set();
|
|
var ops = this.channelops.get(target) || new Set();
|
|
if (voices === true) voices = new Set();
|
|
if (ops === true) ops = new Set();
|
|
if (!(voices.has(nickname) || ops.has(nickname))) {
|
|
socket.write(`:${this.servername} 404 ${nickname} ${target} :Cannot send to channel (+m)\r\n`);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
const msg = line.slice(line.indexOf(':', 1) + 1);
|
|
this.broadcast(`:${nickname}!${username}@${host} PRIVMSG ${params[0]} :${msg}\r\n`, socket);
|
|
}
|
|
break;
|
|
case 'NOTICE':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
this.usertimestamps.set(nickname, Date.now());
|
|
if (params[0]) {
|
|
const msg = line.slice(line.indexOf(':', 1) + 1);
|
|
let validTarget = false;
|
|
for (const prefix of this.channelprefixes) {
|
|
if (params[0].startsWith(prefix)) {
|
|
validTarget = true;
|
|
break;
|
|
}
|
|
}
|
|
if (validTarget) {
|
|
if (!this.channels.has(params[0])) {
|
|
socket.write(`:${this.servername} 403 ${nickname} ${params[0]} :No such channel\r\n`);
|
|
break;
|
|
}
|
|
this.broadcastChannel(params[0], `:${nickname}!${username}@${host} NOTICE ${params[0]} :${msg}\r\n`, socket);
|
|
break;
|
|
} else {
|
|
// Assume it's a nick, check if it exists
|
|
const targetSock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === params[0]);
|
|
if (!targetSock) {
|
|
socket.write(`:${this.servername} 401 ${nickname} ${params[0]} :No such nick/channel\r\n`);
|
|
return;
|
|
}
|
|
targetSock.write(`:${nickname}!${username}@${host} NOTICE ${params[0]} :${msg}\r\n`);
|
|
}
|
|
}
|
|
break;
|
|
case 'PING':
|
|
socket.write(`PONG ${params.join(' ')}\r\n`);
|
|
break;
|
|
case 'WHOIS':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 1) {
|
|
socket.write(`:${this.servername} 461 ${nickname} WHOIS :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const whoisNick = params[0];
|
|
const whoisSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === whoisNick);
|
|
if (whoisSocket) {
|
|
const whois_username = this.usernames.get(whoisNick);
|
|
socket.write(`:${this.servername} 311 ${nickname} ${whoisNick} ${whois_username} ${this.getHostname(whoisSocket)} * ${whoisNick}\r\n`);
|
|
if (this.awaymsgs.has(whoisNick)) {
|
|
socket.write(`:${this.servername} 301 ${nickname} ${whoisNick} :${this.awaymsgs.get(whoisNick)}\r\n`);
|
|
}
|
|
const userChannels = [];
|
|
for (const [ch, users] of this.channels.entries()) {
|
|
if (users.has(whoisNick)) {
|
|
let prefix = '';
|
|
var chanops = this.channelops.get(ch) || new Set();
|
|
var chanvoices = this.channelvoices.get(ch) || new Set();
|
|
if (chanops.has(whoisNick)) {
|
|
prefix = '@';
|
|
} else if (chanvoices.has(whoisNick)) {
|
|
prefix = '+';
|
|
}
|
|
userChannels.push(prefix + ch);
|
|
}
|
|
}
|
|
socket.write(`:${this.servername} 312 ${nickname} ${whoisNick} ${this.servername} :minisrv-${this.minisrv_config.version}\r\n`);
|
|
if (this.isIRCOp(whoisNick)) {
|
|
socket.write(`:${this.servername} 313 ${nickname} ${whoisNick} :is an IRC operator\r\n`);
|
|
}
|
|
var now = Date.now();
|
|
var userTimestamp = this.usertimestamps.get(whoisNick) || now;
|
|
var idleTime = Math.floor((now - userTimestamp) / 1000);
|
|
socket.write(`:${this.servername} 317 ${nickname} ${whoisNick} ${idleTime} :seconds idle\r\n`);
|
|
if (userChannels.length > 0) {
|
|
socket.write(`:${this.servername} 319 ${nickname} ${whoisNick} :${userChannels.join(' ')}\r\n`);
|
|
}
|
|
socket.write(`:${this.servername} 318 ${nickname} ${whoisNick} :End of /WHOIS list\r\n`);
|
|
} else {
|
|
socket.write(`:${this.servername} 401 ${nickname} ${whoisNick} :No such nick/channel\r\n`);
|
|
}
|
|
break;
|
|
case 'KILL':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
break;
|
|
}
|
|
if (!this.isIRCOp(nickname)) {
|
|
socket.write(`:${this.servername} 481 ${nickname} :Permission denied - you are not an IRC operator\r\n`);
|
|
break;
|
|
}
|
|
if (params.length < 2) {
|
|
socket.write(`:${this.servername} 461 ${nickname} KILL :Not enough parameters\r\n`);
|
|
break;
|
|
}
|
|
const target_nick = params[0];
|
|
const killReason = params.slice(1).join(' ');
|
|
let cleanKillReason = killReason;
|
|
if (cleanKillReason.startsWith(':')) {
|
|
cleanKillReason = cleanKillReason.slice(1);
|
|
}
|
|
const targetSocket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === target_nick);
|
|
if (!targetSocket) {
|
|
socket.write(`:${this.servername} 401 ${nickname} ${target_nick} :No such nick/channel\r\n`);
|
|
break;
|
|
}
|
|
|
|
// Broadcast the KILL message to all users
|
|
this.broadcastUser(target_nick, `:${nickname}!${username}@${host} KILL ${target_nick} :${cleanKillReason}\r\n`);
|
|
this.terminateSession(targetSocket, target_nick);
|
|
break;
|
|
case 'QUIT':
|
|
if (!registered) {
|
|
socket.write(`:${this.servername} 451 ${nickname} :You have not registered\r\n`);
|
|
} else {
|
|
if (params.length > 0) {
|
|
let reason = params.join(' ');
|
|
if (reason.startsWith(':')) {
|
|
reason = reason.slice(1);
|
|
}
|
|
socket.write(`:${nickname}!${username}@${host} QUIT :${reason}\r\n`);
|
|
this.broadcastUser(nickname, `:${nickname}!${username}@${host} QUIT :${reason}\r\n`, socket);
|
|
} else {
|
|
socket.write(`:${nickname}!${username}@${host} QUIT\r\n`);
|
|
this.broadcastUser(nickname, `:${nickname}!${username}@${host} QUIT\r\n`, socket);
|
|
}
|
|
}
|
|
this.terminateSession(socket, nickname);
|
|
break;
|
|
default:
|
|
// Ignore unknown commands
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
|
|
socket.on('end', () => {
|
|
this.clients = this.clients.filter(c => c !== socket);
|
|
this.nicknames.delete(socket);
|
|
});
|
|
|
|
socket.on('error', () => {
|
|
this.clients = this.clients.filter(c => c !== socket);
|
|
this.nicknames.delete(socket);
|
|
});
|
|
});
|
|
|
|
this.server.listen(this.port, this.host, () => {
|
|
if (this.debug) {
|
|
console.log(`IRC server started on port ${this.host}:${this.port}`);
|
|
}
|
|
});
|
|
}
|
|
|
|
terminateSession(socket, nickname) {
|
|
if (nickname) {
|
|
this.usertimestamps.delete(nickname);
|
|
this.usersignontimestamps.delete(nickname);
|
|
for (const [ch, ops] of this.channelops.entries()) {
|
|
if (ops && ops !== true && ops.has(nickname)) {
|
|
ops.delete(nickname);
|
|
}
|
|
}
|
|
for (const [ch, voices] of this.channelvoices.entries()) {
|
|
if (voices && voices !== true && voices.has(nickname)) {
|
|
voices.delete(nickname);
|
|
}
|
|
}
|
|
// Remove user from any pending invites
|
|
for (const [ch, invites] of (this.channelinvites || new Map()).entries()) {
|
|
if (invites && invites.has(nickname)) {
|
|
invites.delete(nickname);
|
|
}
|
|
}
|
|
this.channels.forEach((users, ch) => {
|
|
if (users.has(nickname)) {
|
|
users.delete(nickname);
|
|
if (users.size === 0) {
|
|
this.channels.delete(ch);
|
|
this.channelops.delete(ch);
|
|
this.channelvoices.delete(ch);
|
|
this.channeltopics.delete(ch);
|
|
this.channelbans.delete(ch);
|
|
this.channelexemptions.delete(ch);
|
|
this.channelinvites.delete(ch);
|
|
this.channelmodes.delete(ch);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
socket.end();
|
|
}
|
|
|
|
isBanned(nickname, channel) {
|
|
if (this.channelbans.has(channel)) {
|
|
const bans = this.channelbans.get(channel);
|
|
// Check if the user's mask matches any ban mask
|
|
let isBanned = false;
|
|
for (const banMask of bans) {
|
|
// Simple mask matching: * matches any, ? matches one char, otherwise exact
|
|
// IRC uses user!ident@host
|
|
const regex = new RegExp('^' + banMask.replace(/\*/g, '.*').replace(/\?/g, '.') + '$');
|
|
if (regex.test(nickname)) {
|
|
isBanned = true;
|
|
break;
|
|
}
|
|
if (this.channelexemptions.has(channel)) {
|
|
const exemptions = this.channelexemptions.get(channel);
|
|
for (const exemptMask of exemptions) {
|
|
const exemptRegex = new RegExp('^' + exemptMask.replace(/\*/g, '.*').replace(/\?/g, '.') + '$');
|
|
if (exemptRegex.test(nickname)) {
|
|
isBanned = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return isBanned;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
sendWebTVNotice(message) {
|
|
this.broadcast(`:${this.servername} NOTICE * :${message}\r\n`);
|
|
}
|
|
|
|
sendWebTVNoticeTo(username, message) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === username);
|
|
if (socket) {
|
|
socket.write(`:${this.servername} NOTICE * :${message}\r\n`);
|
|
}
|
|
}
|
|
|
|
sendToChannelAs(username, channel, message) {
|
|
const users = this.getUsersInChannel(channel);
|
|
for (const user of users) {
|
|
const socket = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (socket) {
|
|
socket.write(`:${username}!${username}@${this.servername} PRIVMSG ${channel} :${message}\r\n`);
|
|
}
|
|
}
|
|
}
|
|
|
|
getChannelCount(username) {
|
|
// returns the number of channels a user is in
|
|
let count = 0;
|
|
for (const [channel, users] of this.channels.entries()) {
|
|
if (users.has(username)) {
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
getUsersInChannel(channel) {
|
|
if (this.channels.has(channel)) {
|
|
const ops = this.channelops.get(channel) || new Set();
|
|
const voices = this.channelvoices.get(channel) || new Set();
|
|
return Array.from(this.channels.get(channel)).map(user => {
|
|
if (ops === true) return user;
|
|
if (voices === true) return user;
|
|
if (ops.has(user)) return '@' + user;
|
|
if (voices.has(user)) return '+' + user;
|
|
return user;
|
|
});
|
|
}
|
|
return [];
|
|
}
|
|
|
|
broadcastUser(username, message, exceptSocket = null) {
|
|
for (const [channel, users] of this.channels.entries()) {
|
|
if (users.has(username)) {
|
|
for (const user of users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcastChannel(channel, message, exceptSocket = null) {
|
|
if (this.channels.has(channel)) {
|
|
const users = this.channels.get(channel);
|
|
for (const user of users) {
|
|
const sock = Array.from(this.nicknames.keys()).find(s => this.nicknames.get(s) === user);
|
|
if (sock && sock !== exceptSocket) {
|
|
sock.write(message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
broadcast(message, exceptSocket = null) {
|
|
for (const client of this.clients) {
|
|
if (client !== exceptSocket) {
|
|
client.write(message);
|
|
}
|
|
}
|
|
}
|
|
|
|
isIRCOp(nickname) {
|
|
// Check if the user is an IRC operator
|
|
if (!this.usermodes.has(nickname)) return false;
|
|
const modes = this.usermodes.get(nickname);
|
|
if (Array.isArray(modes)) {
|
|
return modes.includes('o');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
createChannel(channel, creator) {
|
|
if (!this.channels.has(channel)) {
|
|
this.channels.set(channel, new Set());
|
|
this.channelops.set(channel, new Set([creator]));
|
|
this.channelvoices.set(channel, new Set());
|
|
this.channeltopics.set(channel, 'No topic set');
|
|
this.channelbans.set(channel, new Set());
|
|
this.channelexemptions.set(channel, new Set());
|
|
this.channelinvites.set(channel, new Set());
|
|
this.channelmodes.set(channel, this.default_channel_modes.slice());
|
|
}
|
|
}
|
|
|
|
getHostname(socket) {
|
|
const username = this.nicknames.get(socket);
|
|
const modes = this.usermodes.get(username);
|
|
var hostname = '';
|
|
if (socket && socket.remoteAddress) {
|
|
try {
|
|
// Synchronously resolve the hostname (not recommended for production, but simple for this context)
|
|
// For async, you'd need to refactor the call site to handle promises/callbacks
|
|
let resolved = socket.remoteAddress;
|
|
dns.reverse(socket.remoteAddress, (err, hostnames) => {
|
|
if (!err && hostnames && hostnames.length > 0) {
|
|
resolved = hostnames[0];
|
|
}
|
|
});
|
|
hostname = resolved;
|
|
} catch (e) {
|
|
hostname = socket.remoteAddress;
|
|
}
|
|
}
|
|
|
|
if (Array.isArray(modes) && modes.includes('h')) {
|
|
// Masked hostname for +h users
|
|
if (typeof hostname === 'string') {
|
|
// Mask everything except the first and last octet for IPv4
|
|
const ipv4Match = hostname.match(/^(\d+)\.(\d+)\.(\d+)\.(\d+)$/);
|
|
if (ipv4Match) {
|
|
return `${ipv4Match[1]}.x.x.${ipv4Match[4]}`;
|
|
}
|
|
// For hostnames, mask all but the first and last label
|
|
const parts = hostname.split('.');
|
|
if (parts.length > 2) {
|
|
return `${parts[0]}.x.${parts[parts.length - 1]}`;
|
|
}
|
|
// Otherwise, just return 'hidden.host'
|
|
return 'hidden.host';
|
|
}
|
|
}
|
|
if (hostname) {
|
|
return hostname;
|
|
}
|
|
return 'unknown.host';
|
|
}
|
|
|
|
doLogin(nickname, socket) {
|
|
socket.write(`:${this.servername} 001 ${nickname} :Welcome to the IRC server, ${nickname}\r\n`);
|
|
socket.write(`:${this.servername} 002 ${nickname} :Your host is ${this.servername}, running version minisrv ${this.minisrv_config.version}\r\n`);
|
|
socket.write(`:${this.servername} 003 ${nickname} :This server is ready to accept commands\r\n`);
|
|
socket.write(`:${this.servername} 004 ${nickname} ${this.servername} minisrv ${this.minisrv_config.version} ohiws obtkmeIlvn beIklov\r\n`);
|
|
socket.write(`:${this.servername} 005 ${this.caps}\r\n`);
|
|
}
|
|
}
|
|
|
|
module.exports = WTVIRC; |