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