541 lines
15 KiB
JavaScript
541 lines
15 KiB
JavaScript
//var db = require("../database");
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var $util = require("../utilities");
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var bcrypt = require("bcrypt");
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var db = require("../database");
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var Config = require("../config");
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var Logger = require("../logger");
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var registrationLock = {};
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var blackHole = function () { };
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module.exports = {
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init: function () {
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},
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/**
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* Check if a username is taken
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*/
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isUsernameTaken: function (name, callback) {
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db.query("SELECT name FROM `users` WHERE name=?", [name],
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function (err, rows) {
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if (err) {
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callback(err, true);
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return;
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}
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callback(null, rows.length > 0);
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});
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},
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/**
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* Search for a user by name
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*/
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search: function (name, fields, callback) {
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/* This bit allows it to accept varargs
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Function can be called as (name, callback) or
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(name, fields, callback)
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*/
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if (typeof callback !== "function") {
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if (typeof fields === "function") {
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callback = fields;
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fields = ["name"];
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} else {
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return;
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}
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}
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// Don't allow search to return password hashes
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if (fields.indexOf("password") !== -1) {
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fields.splice(fields.indexOf("password"));
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}
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db.query("SELECT " + fields.join(",") + " FROM `users` WHERE name LIKE ?",
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["%"+name+"%"],
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function (err, rows) {
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if (err) {
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callback(err, true);
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return;
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}
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callback(null, rows);
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});
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},
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/**
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* Registers a new user account
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*/
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register: function (name, pw, email, ip, callback) {
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// Start off with a boatload of error checking
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if (typeof callback !== "function") {
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callback = blackHole;
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}
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if (typeof name !== "string" || typeof pw !== "string") {
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callback("You must provide a nonempty username and password", null);
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return;
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}
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var lname = name.toLowerCase();
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if (registrationLock[lname]) {
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callback("There is already a registration in progress for "+name,
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null);
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return;
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}
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if (!$util.isValidUserName(name)) {
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callback("Invalid username. Usernames may consist of 1-20 " +
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"characters a-z, A-Z, 0-9, -, _, and accented letters.",
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null);
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return;
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}
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if (typeof email !== "string") {
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email = "";
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}
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if (typeof ip !== "string") {
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ip = "";
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}
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// From this point forward, actual registration happens
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// registrationLock prevents concurrent database activity
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// on the same user account
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registrationLock[lname] = true;
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this.getAccounts(ip, function (err, accts) {
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if (err) {
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delete registrationLock[lname];
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callback(err, null);
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return;
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}
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if (accts.length >= Config.get("max-accounts-per-ip")) {
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delete registrationLock[lname];
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callback("You have registered too many accounts from this "+
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"computer.", null);
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return;
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}
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module.exports.isUsernameTaken(name, function (err, taken) {
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if (err) {
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delete registrationLock[lname];
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callback(err, null);
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return;
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}
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if (taken) {
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delete registrationLock[lname];
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callback("Username is already registered", null);
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return;
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}
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bcrypt.hash(pw, 10, function (err, hash) {
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if (err) {
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delete registrationLock[lname];
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callback(err, null);
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return;
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}
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db.query("INSERT INTO `users` " +
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"(`name`, `password`, `global_rank`, `email`, `profile`, `ip`, `time`)" +
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" VALUES " +
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"(?, ?, ?, ?, '', ?, ?)",
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[name, hash, 1, email, ip, Date.now()],
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function (err, res) {
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delete registrationLock[lname];
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if (err) {
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callback(err, null);
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} else {
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callback(null, {
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name: name,
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hash: hash
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});
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}
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});
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});
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});
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});
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},
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/**
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* Verify a username/password pair
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*/
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verifyLogin: function (name, pw, callback) {
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if (typeof callback !== "function") {
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return;
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}
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if (typeof name !== "string" || typeof pw !== "string") {
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callback("Invalid username/password combination", null);
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return;
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}
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/* Passwords are capped at 100 characters to prevent a potential
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denial of service vector through causing the server to hash
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ridiculously long strings.
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*/
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pw = pw.substring(0, 100);
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/* Note: rather than hash the password and then query based on name and
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password, I query by name, then use bcrypt.compare() to check that
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the hashes match.
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*/
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db.query("SELECT name,password,global_rank FROM `users` WHERE name=?",
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[name],
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function (err, rows) {
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if (err) {
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callback(err, null);
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return;
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}
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if (rows.length === 0) {
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callback("User does not exist", null);
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return;
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}
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bcrypt.compare(pw, rows[0].password, function (err, match) {
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if (err) {
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callback(err, null);
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} else if (!match) {
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callback("Invalid username/password combination", null);
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} else {
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callback(null, {
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name: rows[0].name,
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hash: rows[0].password,
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global_rank: rows[0].global_rank
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});
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}
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});
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});
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},
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/**
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* Verify an auth string of the form name:hash
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*/
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verifyAuth: function (auth, callback) {
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if (typeof callback !== "function") {
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return;
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}
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if (typeof auth !== "string") {
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callback("Invalid auth string", null);
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return;
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}
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var split = auth.split(":");
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if (split.length !== 2) {
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callback("Invalid auth string", null);
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return;
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}
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var name = split[0];
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var hash = split[1];
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db.query("SELECT name,password,global_rank FROM `users` WHERE " +
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"name=? and password=?", [name, hash],
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function (err, rows) {
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if (err) {
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callback(err, null);
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return;
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}
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if (rows.length === 0) {
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callback("Auth string does not match an existing user", null);
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return;
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}
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callback(null, {
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name: rows[0].name,
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hash: rows[0].password,
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global_rank: rows[0].global_rank
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});
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});
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},
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/**
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* Change a user's password
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*/
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setPassword: function (name, pw, callback) {
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if (typeof callback !== "function") {
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callback = blackHole;
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}
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if (typeof name !== "string" || typeof pw !== "string") {
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callback("Invalid username/password combination", null);
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return;
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}
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/* Passwords are capped at 100 characters to prevent a potential
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denial of service vector through causing the server to hash
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ridiculously long strings.
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*/
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pw = pw.substring(0, 100);
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bcrypt.hash(pw, 10, function (err, hash) {
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if (err) {
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callback(err, null);
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return;
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}
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db.query("UPDATE `users` SET password=? WHERE name=?",
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[hash, name],
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function (err, result) {
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callback(err, err ? null : true);
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});
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});
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},
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/**
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* Lookup a user's global rank
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*/
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getGlobalRank: function (name, callback) {
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if (typeof callback !== "function") {
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return;
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}
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if (typeof name !== "string") {
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callback("Invalid username", null);
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return;
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}
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if (!name) {
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callback(null, -1);
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return;
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}
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db.query("SELECT global_rank FROM `users` WHERE name=?", [name],
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function (err, rows) {
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if (err) {
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callback(err, null);
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} else if (rows.length === 0) {
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callback(null, 0);
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} else {
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callback(null, rows[0].global_rank);
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}
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});
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},
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/**
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* Updates a user's global rank
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*/
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setGlobalRank: function (name, rank, callback) {
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if (typeof callback !== "function") {
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callback = blackHole;
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}
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if (typeof name !== "string") {
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callback("Invalid username", null);
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return;
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}
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if (typeof rank !== "number") {
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callback("Invalid rank", null);
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return;
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}
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db.query("UPDATE `users` SET global_rank=? WHERE name=?", [rank, name],
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function (err, result) {
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callback(err, err ? null : true);
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});
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},
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/**
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* Lookup multiple users' global rank in one query
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*/
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getGlobalRanks: function (names, callback) {
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if (typeof callback !== "function") {
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return;
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}
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if (!(names instanceof Array)) {
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callback("Expected array of names, got " + typeof names, null);
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return;
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}
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if (names.length === 0) {
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return callback(null, []);
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}
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var list = "(" + names.map(function () { return "?";}).join(",") + ")";
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db.query("SELECT global_rank FROM `users` WHERE name IN " + list, names,
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function (err, rows) {
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if (err) {
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callback(err, null);
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} else if (rows.length === 0) {
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callback(null, []);
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} else {
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callback(null, rows.map(function (x) { return x.global_rank; }));
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}
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});
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},
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/**
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* Lookup a user's email
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*/
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getEmail: function (name, callback) {
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if (typeof callback !== "function") {
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return;
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}
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if (typeof name !== "string") {
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callback("Invalid username", null);
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return;
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}
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db.query("SELECT email FROM `users` WHERE name=?", [name],
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function (err, rows) {
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if (err) {
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callback(err, null);
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} else if (rows.length === 0) {
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callback("User does not exist", null);
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} else {
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callback(null, rows[0].email);
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}
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});
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},
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/**
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* Updates a user's email
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*/
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setEmail: function (name, email, callback) {
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if (typeof callback !== "function") {
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callback = blackHole;
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}
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if (typeof name !== "string") {
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callback("Invalid username", null);
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return;
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}
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if (typeof email !== "string") {
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callback("Invalid email", null);
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return;
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}
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db.query("UPDATE `users` SET email=? WHERE name=?", [email, name],
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function (err, result) {
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callback(err, err ? null : true);
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});
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},
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/**
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* Lookup a user's profile
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*/
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getProfile: function (name, callback) {
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if (typeof callback !== "function") {
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return;
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}
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if (typeof name !== "string") {
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callback("Invalid username", null);
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return;
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}
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db.query("SELECT profile FROM `users` WHERE name=?", [name],
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function (err, rows) {
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if (err) {
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callback(err, null);
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} else if (rows.length === 0) {
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callback("User does not exist", null);
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} else {
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var userprof = {
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image: "",
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text: ""
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};
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if (rows[0].profile === "") {
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callback(null, userprof);
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return;
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}
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try {
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var profile = JSON.parse(rows[0].profile);
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userprof.image = profile.image || "";
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userprof.text = profile.text || "";
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callback(null, userprof);
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} catch (e) {
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Logger.errlog.log("Corrupt profile: " + rows[0].profile +
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" (user: " + name + ")");
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callback(null, userprof);
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}
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}
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});
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},
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/**
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* Updates a user's profile
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*/
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setProfile: function (name, profile, callback) {
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if (typeof callback !== "function") {
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callback = blackHole;
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}
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if (typeof name !== "string") {
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callback("Invalid username", null);
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return;
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}
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if (typeof profile !== "object") {
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callback("Invalid profile", null);
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return;
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}
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// Cast to string to guarantee string type
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profile.image += "";
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profile.text += "";
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// Limit size
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profile.image = profile.image.substring(0, 255);
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profile.text = profile.text.substring(0, 255);
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// Stringify the literal to guarantee I only get the keys I want
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var profilejson = JSON.stringify({
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image: profile.image,
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text: profile.text
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});
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db.query("UPDATE `users` SET profile=? WHERE name=?", [profilejson, name],
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function (err, result) {
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callback(err, err ? null : true);
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});
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},
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generatePasswordReset: function (ip, name, email, callback) {
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if (typeof callback !== "function") {
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return;
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}
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callback("generatePasswordReset is not implemented", null);
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},
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recoverPassword: function (hash, callback) {
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if (typeof callback !== "function") {
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return;
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}
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callback("recoverPassword is not implemented", null);
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},
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/**
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* Retrieve a list of channels owned by a user
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*/
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getChannels: function (name, callback) {
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if (typeof callback !== "function") {
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return;
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}
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db.query("SELECT * FROM `channels` WHERE owner=?", [name], callback);
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},
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/**
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* Retrieves all names registered from a given IP
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*/
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getAccounts: function (ip, callback) {
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if (typeof callback !== "function") {
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return;
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}
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db.query("SELECT name,global_rank FROM `users` WHERE `ip`=?", [ip],
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callback);
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}
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};
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