var Logger = require("./logger"); var Server = require("./server"); var util = require("./utilities"); var MakeEmitter = require("./emitter"); var db = require("./database"); var InfoGetter = require("./get-info"); var Config = require("./config"); var ACP = require("./acp"); var Account = require("./account"); var Flags = require("./flags"); function User(socket) { var self = this; MakeEmitter(self); self.flags = 0; self.socket = socket; self.realip = socket._realip; self.displayip = socket._displayip; self.hostmask = socket._hostmask; self.account = Account.default(self.realip); self.channel = null; self.queueLimiter = util.newRateLimiter(); self.chatLimiter = util.newRateLimiter(); self.awaytimer = false; var announcement = Server.getServer().announcement; if (announcement != null) { self.socket.emit("announcement", announcement); } self.socket.once("joinChannel", function (data) { if (typeof data !== "object" || typeof data.name !== "string") { return; } if (self.inChannel()) { return; } if (!util.isValidChannelName(data.name)) { self.socket.emit("errorMsg", { msg: "Invalid channel name. Channel names may consist of 1-30 " + "characters in the set a-z, A-Z, 0-9, -, and _" }); self.kick("Invalid channel name"); return; } data.name = data.name.toLowerCase(); if (data.name in Config.get("channel-blacklist")) { self.kick("This channel is blacklisted."); return; } self.waitFlag(Flags.U_READY, function () { var chan = Server.getServer().getChannel(data.name); chan.joinUser(self, data); }); }); self.socket.once("initACP", function () { self.waitFlag(Flags.U_LOGGED_IN, function () { if (self.account.globalRank >= 255) { ACP.init(self); } else { self.kick("Attempted initACP from non privileged user. This incident " + "will be reported."); Logger.eventlog.log("[acp] Attempted initACP from socket client " + self.getName() + "@" + self.realip); } }); }); self.socket.on("login", function (data) { data = (typeof data === "object") ? data : {}; var name = data.name; if (typeof name !== "string") { return; } var pw = data.pw || ""; if (typeof pw !== "string") { pw = ""; } if (self.is(Flags.U_LOGGING_IN) || self.is(Flags.U_LOGGED_IN)) { return; } if (!pw) { self.guestLogin(name); } else { self.login(name, pw); } }); self.on("login", function (account) { if (account.globalRank >= 255) { self.initAdminCallbacks(); } }); } User.prototype.die = function () { for (var key in this.socket._events) { delete this.socket._events[key]; } delete this.socket.typecheckedOn; delete this.socket.typecheckedOnce; for (var key in this.__evHandlers) { delete this.__evHandlers[key]; } if (this.awaytimer) { clearTimeout(this.awaytimer); } this.dead = true; }; User.prototype.is = function (flag) { return Boolean(this.flags & flag); }; User.prototype.setFlag = function (flag) { this.flags |= flag; this.emit("setFlag", flag); }; User.prototype.clearFlag = function (flag) { this.flags &= ~flag; this.emit("clearFlag", flag); }; User.prototype.waitFlag = function (flag, cb) { var self = this; if (self.is(flag)) { cb(); } else { var wait = function (f) { if (f === flag) { self.unbind("setFlag", wait); cb(); } }; self.on("setFlag", wait); } }; User.prototype.getName = function () { return this.account.name; }; User.prototype.getLowerName = function () { return this.account.lowername; }; User.prototype.inChannel = function () { return this.channel != null && !this.channel.dead; }; /* Called when a user's AFK status changes */ User.prototype.setAFK = function (afk) { if (!this.inChannel()) { return; } /* No change in AFK status, don't need to change anything */ if (this.is(Flags.U_AFK) === afk) { this.autoAFK(); return; } if (afk) { this.setFlag(Flags.U_AFK); if (this.channel.modules.voteskip) { this.channel.modules.voteskip.unvote(this.realip); } } else { this.clearFlag(Flags.U_AFK); this.autoAFK(); } /* Number of AFK users changed, voteskip state changes */ if (this.channel.modules.voteskip) { this.channel.modules.voteskip.update(); } this.channel.broadcastAll("setAFK", { name: this.getName(), afk: afk }); }; /* Automatically tag a user as AFK after a period of inactivity */ User.prototype.autoAFK = function () { var self = this; if (self.awaytimer) { clearTimeout(self.awaytimer); } if (!self.inChannel() || !self.channel.modules.options) { return; } /* Don't set a timer if the duration is invalid */ var timeout = parseFloat(self.channel.modules.options.get("afk_timeout")); if (isNaN(timeout) || timeout <= 0) { return; } self.awaytimer = setTimeout(function () { self.setAFK(true); }, timeout * 1000); }; User.prototype.kick = function (reason) { this.socket.emit("kick", { reason: reason }); this.socket.disconnect(true); }; User.prototype.initAdminCallbacks = function () { var self = this; self.socket.on("borrow-rank", function (rank) { if (self.inChannel()) { if (typeof rank !== "number") { return; } if (rank > self.account.globalRank) { return; } if (rank === 255 && self.account.globalRank > 255) { rank = self.account.globalRank; } self.account.channelRank = rank; self.socket.emit("rank", rank); self.channel.broadcastAll("setUserRank", { name: self.getName(), rank: rank }); } }); }; User.prototype.login = function (name, pw) { var self = this; self.setFlag(Flags.U_LOGGING_IN); db.users.verifyLogin(name, pw, function (err, user) { if (err) { if (err === "Invalid username/password combination") { Logger.eventlog.log("[loginfail] Login failed (bad password): " + name + "@" + self.realip); } self.socket.emit("login", { success: false, error: err }); self.clearFlag(Flags.U_LOGGING_IN); return; } var opts = { name: user.name }; if (self.inChannel()) { opts.channel = self.channel.name; } self.setFlag(Flags.U_REGISTERED); self.refreshAccount(opts, function (err, account) { if (err) { Logger.errlog.log("[SEVERE] getAccount failed for user " + user.name); Logger.errlog.log(err); self.clearFlag(Flags.U_REGISTERED); self.clearFlag(Flags.U_LOGGING_IN); return; } self.socket.emit("login", { success: true, name: user.name }); db.recordVisit(self.realip, self.getName()); self.socket.emit("rank", self.account.effectiveRank); Logger.syslog.log(self.realip + " logged in as " + user.name); if (self.inChannel()) { self.channel.logger.log(self.displayip + " logged in as " + user.name); } self.setFlag(Flags.U_LOGGED_IN); self.clearFlag(Flags.U_LOGGING_IN); self.emit("login", self.account); }); }); }; var lastguestlogin = {}; User.prototype.guestLogin = function (name) { var self = this; if (self.realip in lastguestlogin) { var diff = (Date.now() - lastguestlogin[self.realip]) / 1000; if (diff < Config.get("guest-login-delay")) { self.socket.emit("login", { success: false, error: "Guest logins are restricted to one per IP address per " + Config.get("guest-login-delay") + " seconds." }); return; } } if (!util.isValidUserName(name)) { self.socket.emit("login", { success: false, error: "Invalid username. Usernames must be 1-20 characters long and " + "consist only of characters a-z, A-Z, 0-9, -, or _." }); return; } // Prevent duplicate logins self.setFlag(Flags.U_LOGGING_IN); db.users.isUsernameTaken(name, function (err, taken) { self.clearFlag(Flags.U_LOGGING_IN); if (err) { self.socket.emit("login", { success: false, error: err }); return; } if (taken) { self.socket.emit("login", { success: false, error: "That username is registered." }); return; } if (self.inChannel()) { var nameLower = name.toLowerCase(); for (var i = 0; i < self.channel.users.length; i++) { if (self.channel.users[i].getLowerName() === nameLower) { self.socket.emit("login", { success: false, error: "That name is already in use on this channel." }); return; } } } // Login succeeded lastguestlogin[self.realip] = Date.now(); var opts = { name: name }; if (self.inChannel()) { opts.channel = self.channel.name; } self.refreshAccount(opts, function (err, account) { if (err) { Logger.errlog.log("[SEVERE] getAccount failed for guest login " + name); Logger.errlog.log(err); return; } self.socket.emit("login", { success: true, name: name, guest: true }); db.recordVisit(self.realip, self.getName()); self.socket.emit("rank", 0); Logger.syslog.log(self.realip + " signed in as " + name); if (self.inChannel()) { self.channel.logger.log(self.displayip + " signed in as " + name); } self.setFlag(Flags.U_LOGGED_IN); self.emit("login", self.account); }); }); }; /* Clean out old login throttlers to save memory */ setInterval(function () { var delay = Config.get("guest-login-delay"); for (var ip in lastguestlogin) { var diff = (Date.now() - lastguestlogin[ip]) / 1000; if (diff > delay) { delete lastguestlogin[ip]; } } if (Config.get("aggressive-gc") && global && global.gc) { global.gc(); } }, 5 * 60 * 1000); User.prototype.refreshAccount = function (opts, cb) { if (!cb) { cb = opts; opts = {}; } var different = false; for (var key in opts) { if (opts[key] !== this.account[key]) { different = true; break; } } if (!different) { return; } var name = ("name" in opts) ? opts.name : this.account.name; opts.registered = this.is(Flags.U_REGISTERED); var self = this; var old = this.account; Account.getAccount(name, this.realip, opts, function (err, account) { if (!err) { /* Update account if anything changed in the meantime */ for (var key in old) { if (self.account[key] !== old[key]) { account[key] = self.account[key]; } } self.account = account; } cb(err, account); }); }; module.exports = User;