var mysql = require("mysql"); var bcrypt = require("bcrypt"); var $util = require("./utilities"); var Logger = require("./logger"); var Config = require("./config"); var Server = require("./server"); var tables = require("./database/tables"); var net = require("net"); var util = require("./utilities"); var pool = null; var global_ipbans = {}; module.exports.init = function () { pool = mysql.createPool({ host: Config.get("mysql.server"), user: Config.get("mysql.user"), password: Config.get("mysql.password"), database: Config.get("mysql.database"), multipleStatements: true, charset: "UTF8MB4_GENERAL_CI" // Needed for emoji and other non-BMP unicode }); // Test the connection pool.getConnection(function (err, conn) { if(err) { Logger.errlog.log("! DB connection failed"); Logger.errlog.log(err); return; } else { tables.init(module.exports.query, function (err) { if (err) { return; } require("./database/update").checkVersion(); module.exports.loadAnnouncement(); }); // Refresh global IP bans module.exports.listGlobalBans(); } }); global_ipbans = {}; module.exports.users = require("./database/accounts"); module.exports.channels = require("./database/channels"); }; /** * Execute a database query */ module.exports.query = function (query, sub, callback) { // 2nd argument is optional if (typeof sub === "function") { callback = sub; sub = false; } if (typeof callback !== "function") { callback = blackHole; } pool.getConnection(function (err, conn) { if (err) { Logger.errlog.log("! DB connection failed: " + err); callback("Database failure", null); } else { function cback(err, res) { if (err) { Logger.errlog.log("! DB query failed: " + query); if (sub) { Logger.errlog.log("Substitutions: " + sub); } Logger.errlog.log(err); callback("Database failure", null); } else { callback(null, res); } conn.release(); } if (sub) { conn.query(query, sub, cback); } else { conn.query(query, cback); } } }); }; /** * Dummy function to be used as a callback when none is provided */ function blackHole() { } /* REGION global bans */ /** * Check if an IP address is globally banned */ module.exports.isGlobalIPBanned = function (ip, callback) { var range = util.getIPRange(ip); var wrange = util.getWideIPRange(ip); var banned = ip in global_ipbans || range in global_ipbans || wrange in global_ipbans; if (callback) { callback(null, banned); } return banned; }; /** * Retrieve all global bans from the database. * Cache locally in global_bans */ module.exports.listGlobalBans = function (callback) { if (typeof callback !== "function") { callback = blackHole; } module.exports.query("SELECT * FROM global_bans WHERE 1", function (err, res) { if (err) { callback(err, null); return; } global_ipbans = {}; for (var i = 0; i < res.length; i++) { global_ipbans[res[i].ip] = res[i]; } callback(null, global_ipbans); }); }; /** * Globally ban by IP */ module.exports.globalBanIP = function (ip, reason, callback) { if (typeof callback !== "function") { callback = blackHole; } var query = "INSERT INTO global_bans (ip, reason) VALUES (?, ?)" + " ON DUPLICATE KEY UPDATE reason=?"; module.exports.query(query, [ip, reason, reason], function (err, res) { if(err) { callback(err, null); return; } module.exports.listGlobalBans(); callback(null, res); }); }; /** * Remove a global IP ban */ module.exports.globalUnbanIP = function (ip, callback) { if (typeof callback !== "function") { callback = blackHole; } var query = "DELETE FROM global_bans WHERE ip=?"; module.exports.query(query, [ip], function (err, res) { if(err) { callback(err, null); return; } module.exports.listGlobalBans(); callback(null, res); }); }; /* END REGION */ /* password recovery */ /** * Deletes recovery rows older than the given time */ module.exports.cleanOldPasswordResets = function (callback) { if (typeof callback === "undefined") { callback = blackHole; } var query = "DELETE FROM aliases WHERE time < ?"; module.exports.query(query, [Date.now() - 24*60*60*1000], callback); }; module.exports.addPasswordReset = function (data, cb) { if (typeof cb !== "function") { cb = blackHole; } var ip = data.ip || ""; var name = data.name; var email = data.email; var hash = data.hash; var expire = data.expire; if (!name || !hash) { cb("Internal error: Must provide name and hash to insert a new password reset", null); return; } module.exports.query("INSERT INTO `password_reset` (`ip`, `name`, `email`, `hash`, `expire`) " + "VALUES (?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE ip=?, hash=?, email=?, expire=?", [ip, name, email, hash, expire, ip, hash, email, expire], cb); }; module.exports.lookupPasswordReset = function (hash, cb) { if (typeof cb !== "function") { return; } module.exports.query("SELECT * FROM `password_reset` WHERE hash=?", [hash], function (err, rows) { if (err) { cb(err, null); } else if (rows.length === 0) { cb("Invalid password reset link", null); } else { cb(null, rows[0]); } }); }; module.exports.deletePasswordReset = function (hash) { module.exports.query("DELETE FROM `password_reset` WHERE hash=?", [hash]); }; /* module.exports.genPasswordReset = function (ip, name, email, callback) { if(typeof callback !== "function") callback = blackHole; var query = "SELECT email FROM registrations WHERE uname=?"; module.exports.query(query, [name], function (err, res) { if(err) { callback(err, null); return; } if(res.length == 0) { callback("Provided username does not exist", null); return; } if(res[0].email != email) { callback("Provided email does not match user's email", null); return; } var hash = hashlib.sha256($util.randomSalt(32) + name); var expire = Date.now() + 24*60*60*1000; query = "INSERT INTO password_reset " + "(ip, name, hash, email, expire) VALUES (?, ?, ?, ?, ?) " + "ON DUPLICATE KEY UPDATE hash=?, expire=?"; module.exports.query(query, [ip, name, hash, email, expire, hash, expire], function (err, res) { if(err) { callback(err, null); return; } callback(null, hash); }); }); }; module.exports.recoverUserPassword = function (hash, callback) { if(typeof callback !== "function") callback = blackHole; var query = "SELECT * FROM password_reset WHERE hash=?"; module.exports.query(query, [hash], function (err, res) { if(err) { callback(err, null); return; } if(res.length == 0) { callback("Invalid password reset link", null); return; } if(Date.now() > res[0].expire) { module.exports.query("DELETE FROM password_reset WHERE hash=?", [hash]); callback("Link expired. Password resets are valid for 24hr", null); return; } var name = res[0].name; resetUserPassword(res[0].name, function (err, pw) { if(err) { callback(err, null); return; } module.exports.query("DELETE FROM password_reset WHERE hash=?", [hash]); callback(null, { name: name, pw: pw }); }); }); }; module.exports.resetUserPassword = function (name, callback) { if(typeof callback !== "function") callback = blackHole; var pwChars = "abcdefghijkmnopqrstuvwxyz023456789"; var pw = ""; for(var i = 0; i < 10; i++) pw += pwChars[parseInt(Math.random() * 33)]; bcrypt.hash(pw, 10, function (err, data) { if(err) { Logger.errlog.log("bcrypt error: " + err); callback("Password reset failure", null); return; } var query = "UPDATE registrations SET pw=? WHERE uname=?"; module.exports.query(query, [data, name], function (err, res) { if(err) { callback(err, null); return; } callback(null, pw); }); }); }; */ /* user playlists */ /** * Retrieve all of a user's playlists */ module.exports.listUserPlaylists = function (name, callback) { if (typeof callback !== "function") { return; } var query = "SELECT name, count, duration FROM user_playlists WHERE user=?"; module.exports.query(query, [name], callback); }; /** * Retrieve a user playlist by (user, name) pair */ module.exports.getUserPlaylist = function (username, plname, callback) { if (typeof callback !== "function") { return; } var query = "SELECT contents FROM user_playlists WHERE " + "user=? AND name=?"; module.exports.query(query, [username, plname], function (err, res) { if (err) { callback(err, null); return; } if (res.length == 0) { callback("Playlist does not exist", null); return; } var pl = null; try { pl = JSON.parse(res[0].contents); } catch(e) { callback("Malformed playlist JSON", null); return; } callback(null, pl); }); }; /** * Saves a user playlist. Overwrites if the playlist keyed by * (user, name) already exists */ module.exports.saveUserPlaylist = function (pl, username, plname, callback) { if (typeof callback !== "function") { callback = blackHole; } var tmp = [], time = 0; for(var i in pl) { var e = { id: pl[i].media.id, title: pl[i].media.title, seconds: pl[i].media.seconds || 0, type: pl[i].media.type, meta: { codec: pl[i].media.meta.codec, bitrate: pl[i].media.meta.bitrate } }; time += pl[i].media.seconds || 0; tmp.push(e); } var count = tmp.length; var plText = JSON.stringify(tmp); var query = "INSERT INTO user_playlists VALUES (?, ?, ?, ?, ?) " + "ON DUPLICATE KEY UPDATE contents=?, count=?, duration=?"; var params = [username, plname, plText, count, time, plText, count, time]; module.exports.query(query, params, callback); }; /** * Deletes a user playlist */ module.exports.deleteUserPlaylist = function (username, plname, callback) { if (typeof callback !== "function") { callback = blackHole; } var query = "DELETE FROM user_playlists WHERE user=? AND name=?"; module.exports.query(query, [username, plname], callback); }; /* aliases */ /** * Records a user or guest login in the aliases table */ module.exports.recordVisit = function (ip, name, callback) { if (typeof callback !== "function") { callback = blackHole; } var time = Date.now(); var query = "DELETE FROM aliases WHERE ip=? AND name=?;" + "INSERT INTO aliases VALUES (NULL, ?, ?, ?)"; module.exports.query(query, [ip, name, ip, name, time], callback); }; /** * Deletes alias rows older than the given time */ module.exports.cleanOldAliases = function (expiration, callback) { if (typeof callback === "undefined") { callback = blackHole; } var query = "DELETE FROM aliases WHERE time < ?"; module.exports.query(query, [Date.now() - expiration], callback); }; /** * Retrieves a list of aliases for an IP address */ module.exports.getAliases = function (ip, callback) { if (typeof callback !== "function") { return; } var query = "SELECT name,time FROM aliases WHERE ip"; // if the ip parameter is a /24 range, we want to match accordingly if (ip.match(/^\d+\.\d+\.\d+$/) || ip.match(/^\d+\.\d+$/)) { query += " LIKE ?"; ip += ".%"; } else if (ip.match(/^(?:[0-9a-f]{4}:){3}[0-9a-f]{4}$/) || ip.match(/^(?:[0-9a-f]{4}:){2}[0-9a-f]{4}$/)) { query += " LIKE ?"; ip += ":%"; } else { query += "=?"; } query += " ORDER BY time DESC LIMIT 5"; module.exports.query(query, [ip], function (err, res) { var names = null; if(!err) { names = res.map(function (row) { return row.name; }); } callback(err, names); }); }; /** * Retrieves a list of IPs that a name as logged in from */ module.exports.getIPs = function (name, callback) { if (typeof callback !== "function") { return; } var query = "SELECT ip FROM aliases WHERE name=?"; module.exports.query(query, [name], function (err, res) { var ips = null; if(!err) { ips = res.map(function (row) { return row.ip; }); } callback(err, ips); }); }; /* END REGION */ /* REGION stats */ module.exports.addStatPoint = function (time, ucount, ccount, mem, callback) { if (typeof callback !== "function") { callback = blackHole; } var query = "INSERT INTO stats VALUES (?, ?, ?, ?)"; module.exports.query(query, [time, ucount, ccount, mem], callback); }; module.exports.pruneStats = function (before, callback) { if (typeof callback !== "function") { callback = blackHole; } var query = "DELETE FROM stats WHERE time < ?"; module.exports.query(query, [before], callback); }; module.exports.listStats = function (callback) { if (typeof callback !== "function") { return; } var query = "SELECT * FROM stats ORDER BY time ASC"; module.exports.query(query, callback); }; /* END REGION */ /* Misc */ module.exports.loadAnnouncement = function () { var query = "SELECT * FROM `meta` WHERE `key`='announcement'"; module.exports.query(query, function (err, rows) { if (err) { return; } if (rows.length === 0) { return; } var announcement = rows[0].value; try { announcement = JSON.parse(announcement); } catch (e) { Logger.errlog.log("Invalid announcement data in database: " + announcement.value); module.exports.clearAnnouncement(); return; } var sv = Server.getServer(); sv.announcement = announcement; for (var id in sv.ioServers) { sv.ioServers[id].sockets.emit("announcement", announcement); } }); }; module.exports.setAnnouncement = function (data) { var query = "INSERT INTO `meta` (`key`, `value`) VALUES ('announcement', ?) " + "ON DUPLICATE KEY UPDATE `value`=?"; var repl = JSON.stringify(data); module.exports.query(query, [repl, repl]); }; module.exports.clearAnnouncement = function () { module.exports.query("DELETE FROM `meta` WHERE `key`='announcement'"); };