mirror of https://github.com/calzoneman/sync.git
704 lines
21 KiB
JavaScript
704 lines
21 KiB
JavaScript
/**
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* Copyright 2013 Calvin 'calzoneman' Montgomery
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*
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* Licensed under Creative Commons Attribution-NonCommercial 3.0
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* See http://creativecommons.org/licenses/by-nc/3.0/
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*
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*/
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var mysql = require('mysql-libmysqlclient');
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var Config = require('./config.js');
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var Rank = require('./rank.js');
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// I should use the <noun><verb>er naming scheme more often
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var InfoGetter = require('./get-info.js');
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var Media = require('./media.js').Media;
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var ChatCommand = require('./chatcommand.js');
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var io = require('./server.js').io;
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var Channel = function(name) {
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console.log("Opening channel " + name);
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this.name = name;
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this.registered = false;
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this.users = [];
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this.queue = [];
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this.library = {};
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this.currentPosition = -1;
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this.currentMedia = null;
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this.leader = null;
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this.recentChat = [];
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this.qlocked = true;
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this.poll = false;
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// Autolead stuff
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// Accumulator
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this.i = 0;
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// Time of last update
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this.time = new Date().getTime();
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this.loadMysql();
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};
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// Check if this channel is registered
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// If it is, fetch the library
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Channel.prototype.loadMysql = function() {
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var db = mysql.createConnectionSync();
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db.connectSync(Config.MYSQL_SERVER, Config.MYSQL_USER,
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Config.MYSQL_PASSWORD, Config.MYSQL_DB);
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if(!db.connectedSync()) {
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console.log("MySQL Connection Failed");
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return false;
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}
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// Check if channel exists
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var query = 'SELECT * FROM channels WHERE name="{}"'
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.replace(/\{\}/, this.name);
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var results = db.querySync(query);
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if(!results) {
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console.log("channel query failed");
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return;
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}
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var rows = results.fetchAllSync();
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if(rows.length == 0) {
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console.log("Channel " + this.name + " is unregistered");
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return;
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}
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this.registered = true;
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// Load library
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var query = 'SELECT * FROM chan_{}_library'
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.replace(/\{\}/, this.name);
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var results = db.querySync(query);
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if(!results) {
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console.log("channel library query failed");
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return;
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}
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var rows = results.fetchAllSync();
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for(var i = 0; i < rows.length; i++) {
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this.library[rows[i].id] = new Media(rows[i].id, rows[i].title, rows[i].seconds, rows[i].type);
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}
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console.log("Loaded channel " + this.name + " from MySQL DB");
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db.closeSync();
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}
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// Creates a new channel record in the MySQL Database
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// Currently unused, but might be useful if I add a registration page
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Channel.prototype.createTables = function() {
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var db = mysql.createConnectionSync();
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db.connectSync(Config.MYSQL_SERVER, Config.MYSQL_USER,
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Config.MYSQL_PASSWORD, Config.MYSQL_DB);
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if(!db.connectedSync()) {
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console.log("MySQL Connection Failed");
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return false;
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}
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// Create library table
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var query= "CREATE TABLE `chan_{}_library` \
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(`id` VARCHAR(255) NOT NULL, \
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`title` VARCHAR(255) NOT NULL, \
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`seconds` INT NOT NULL, \
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`playtime` VARCHAR(8) NOT NULL, \
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`type` VARCHAR(2) NOT NULL, \
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PRIMARY KEY (`id`)) \
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ENGINE = MyISAM;"
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.replace(/\{\}/, this.name);
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var results = db.querySync(query);
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// Create rank table
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var query = "CREATE TABLE `chan_{}_ranks` (\
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`name` VARCHAR( 32 ) NOT NULL ,\
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`rank` INT NOT NULL ,\
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UNIQUE (\
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`name`\
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)\
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) ENGINE = MYISAM"
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.replace(/\{\}/, this.name);
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results = db.querySync(query) || results;
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// Insert into global channel table
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var query = 'INSERT INTO channels (`id`, `name`) VALUES (NULL, "{}")'
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.replace(/\{\}/, this.name);
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results = db.querySync(query) || results;
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db.closeSync();
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return results;
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}
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Channel.prototype.tryRegister = function(user) {
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if(this.registered) {
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user.socket.emit('registerChannel', {
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success: false,
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error: "This channel is already registered"
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});
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}
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else if(!user.loggedIn) {
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user.socket.emit('registerChannel', {
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success: false,
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error: "You must log in to register a channel"
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});
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}
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else if(!Rank.hasPermission(user, "registerChannel")) {
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user.socket.emit('registerChannel', {
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success: false,
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error: "You don't have permission to register this channel"
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});
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}
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else {
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if(this.createTables()) {
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this.registered = true;
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this.saveRank(user);
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user.socket.emit('registerChannel', {
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success: true,
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});
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}
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else {
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user.socket.emit('registerChannel', {
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success: false,
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error: "Unable to register channel, see an admin"
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});
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}
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}
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}
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// Retrieves a user's rank from the database
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Channel.prototype.getRank = function(name) {
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if(!this.registered)
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return Rank.Guest;
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var db = mysql.createConnectionSync();
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db.connectSync(Config.MYSQL_SERVER, Config.MYSQL_USER,
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Config.MYSQL_PASSWORD, Config.MYSQL_DB);
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if(!db.connectedSync()) {
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console.log("MySQL Connection Failed");
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return Rank.Guest;
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}
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var query = 'SELECT * FROM chan_{1}_ranks WHERE name="{2}"'
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.replace(/\{1\}/, this.name)
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.replace(/\{2\}/, name);
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var results = db.querySync(query);
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var rows = results.fetchAllSync();
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if(rows.length == 0) {
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return Rank.Guest;
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}
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db.closeSync();
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return rows[0].rank;
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}
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// Saves a user's rank to the database
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Channel.prototype.saveRank = function(user) {
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if(!this.registered)
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return false;
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var db = mysql.createConnectionSync();
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db.connectSync(Config.MYSQL_SERVER, Config.MYSQL_USER,
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Config.MYSQL_PASSWORD, Config.MYSQL_DB);
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if(!db.connectedSync()) {
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console.log("MySQL Connection Failed");
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return false;
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}
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var query = 'UPDATE chan_{1}_ranks SET rank="{2}" WHERE name="{3}"'
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.replace(/\{1\}/, this.name)
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.replace(/\{2\}/, user.rank)
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.replace(/\{3\}/, user.name);
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var results = db.querySync(query);
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// Gonna have to insert a new one, bugger
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if(!results.fetchAllSync) {
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var query = 'INSERT INTO chan_{1}_ranks (`name`, `rank`) VALUES ("{2}", "{3}")'
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.replace(/\{1\}/, this.name)
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.replace(/\{2\}/, user.name)
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.replace(/\{3\}/, user.rank);
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results = db.querySync(query);
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}
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db.closeSync();
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return results;
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}
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// Caches media metadata to the channel library.
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// If the channel is registered, stores it in the database as well
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Channel.prototype.addToLibrary = function(media) {
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this.library[media.id] = media;
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if(!this.registered)
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return;
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var db = mysql.createConnectionSync();
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db.connectSync(Config.MYSQL_SERVER, Config.MYSQL_USER,
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Config.MYSQL_PASSWORD, Config.MYSQL_DB);
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if(!db.connectedSync()) {
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console.log("MySQL Connection Failed");
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return false;
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}
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var query = 'INSERT INTO chan_{1}_library VALUES ("{2}", "{3}", {4}, "{5}", "{6}")'
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.replace(/\{1\}/, this.name)
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.replace(/\{2\}/, media.id)
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.replace(/\{3\}/, media.title)
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.replace(/\{4\}/, media.seconds)
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.replace(/\{5\}/, media.duration)
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.replace(/\{6\}/, media.type);
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var results = db.querySync(query);
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db.closeSync();
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return results;
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}
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// Searches the local library for media titles containing query
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Channel.prototype.searchLibrary = function(query) {
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query = query.toLowerCase();
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var results = [];
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for(var id in this.library) {
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if(this.library[id].title.toLowerCase().indexOf(query) != -1) {
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results.push(this.library[id]);
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}
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}
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results.sort(function(a, b) {
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var x = a.title.toLowerCase();
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var y = b.title.toLowerCase();
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return (x == y) ? 0 : (x < y ? -1 : 1);
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});
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return results;
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}
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// Called when a new user enters the channel
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Channel.prototype.userJoin = function(user) {
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user.socket.join(this.name);
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// Prevent duplicate login
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if(user.name != "") {
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for(var i = 0; i < this.users.length; i++) {
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if(this.users[i].name == user.name) {
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user.name = "";
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user.loggedIn = false;
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user.socket.emit('login', {
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success: false,
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error: "The username " + user.name + " is already in use on this channel"
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});
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}
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}
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}
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// If the channel is empty and isn't registered, the first person
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// gets ownership of the channel (temporarily)
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if(this.users.length == 0 && !this.registered) {
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user.rank = (user.rank < Rank.Owner) ? Rank.Owner + 7 : user.rank;
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user.socket.emit('channelNotRegistered');
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}
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this.users.push(user);
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if(user.name != "") {
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this.broadcastNewUser(user);
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}
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this.updateUsercount();
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// Set the new guy up
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this.sendPlaylist(user);
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user.socket.emit('queueLock', {locked: this.qlocked});
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this.sendUserlist(user);
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this.sendRecentChat(user);
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if(this.poll) {
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user.socket.emit('newPoll', this.poll.packUpdate());
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}
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if(user.playerReady)
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this.sendMediaUpdate(user);
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console.log("/" + user.ip + " joined channel " + this.name);
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}
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// Called when a user leaves the channel
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Channel.prototype.userLeave = function(user) {
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try {
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user.socket.leave(this.name);
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}
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catch(e) {}
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if(this.poll) {
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this.poll.unvote(user.ip);
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this.broadcastPollUpdate();
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}
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if(this.leader == user) {
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this.changeLeader("");
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}
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this.users.splice(this.users.indexOf(user), 1);
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this.updateUsercount();
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if(user.name != "") {
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this.sendAll('userLeave', {
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name: user.name
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});
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}
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}
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// Queues a new media
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Channel.prototype.enqueue = function(data) {
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var idx = data.pos == "next" ? this.currentPosition + 1 : this.queue.length;
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// Try to look up cached metadata first
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if(data.id in this.library) {
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this.queue.splice(idx, 0, this.library[data.id]);
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this.sendAll('queue', {
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media: this.library[data.id].pack(),
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pos: idx
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});
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}
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// Query metadata from YouTube
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else if(data.type == "yt") {
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var callback = (function(chan, id) { return function(res, data) {
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if(res != 200) {
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return;
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}
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// Whoever decided on this variable name should be fired
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var seconds = data.entry.media$group.yt$duration.seconds;
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// This one's slightly better
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var title = data.entry.title.$t;
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var vid = new Media(id, title, seconds, "yt");
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chan.queue.splice(idx, 0, vid);
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chan.sendAll('queue', {
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media: vid.pack(),
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pos: idx
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});
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chan.addToLibrary(vid);
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}})(this, data.id);
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InfoGetter.getYTInfo(data.id, callback);
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}
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// Set up twitch metadata
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else if(data.type == "tw") {
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var media = new Media(data.id, "Twitch ~ " + data.id, 0, "tw");
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this.queue.splice(idx, 0, media);
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this.sendAll('queue', {
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media: media.pack(),
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pos: idx
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});
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}
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else if(data.type == "li") {
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var media = new Media(data.id, "Livestream ~ " + data.id, 0, "li");
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this.queue.splice(idx, 0, media);
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this.sendAll('queue', {
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media: media.pack(),
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pos: idx
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});
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}
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// Query metadata from Soundcloud
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else if(data.type == "sc") {
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var callback = (function(chan, id) { return function(res, data) {
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if(res != 200) {
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return;
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}
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var seconds = data.duration / 1000;
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var title = data.title;
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var vid = new Media(id, title, seconds, "sc");
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chan.queue.splice(idx, 0, vid);
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chan.sendAll('queue', {
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media: vid.pack(),
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pos: idx
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});
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chan.addToLibrary(vid);
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}})(this, data.id);
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InfoGetter.getSCInfo(data.id, callback);
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}
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// Query metadata from Vimeo
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else if(data.type == "vi") {
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var callback = (function(chan, id) { return function(res, data) {
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if(res != 200) {
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return;
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}
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data = data[0];
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var seconds = data.duration;
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var title = data.title;
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var vid = new Media(id, title, seconds, "vi");
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chan.queue.splice(idx, 0, vid);
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chan.sendAll('queue', {
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media: vid.pack(),
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pos: idx
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});
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chan.addToLibrary(vid);
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}})(this, data.id);
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InfoGetter.getVIInfo(data.id, callback);
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}
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}
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// Removes a media from the play queue
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Channel.prototype.unqueue = function(data) {
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// Stop trying to break my server
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if(data.pos < 0 || data.pos >= this.queue.length)
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return;
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this.queue.splice(data.pos, 1);
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this.sendAll('unqueue', {
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pos: data.pos
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});
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if(data.pos < this.currentPosition) {
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this.currentPosition--;
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this.sendAll('updatePlaylistIdx', {
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idx: this.currentPosition
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});
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}
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if(data.pos == this.currentPosition) {
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this.currentPosition--;
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this.playNext();
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}
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}
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// Play the next media in the queue
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Channel.prototype.playNext = function() {
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if(this.currentPosition + 1 >= this.queue.length) {
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this.currentMedia = null;
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return;
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}
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this.currentPosition++;
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this.currentMedia = this.queue[this.currentPosition];
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this.currentMedia.currentTime = 0;
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this.sendAll('mediaUpdate', this.currentMedia.packupdate());
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this.sendAll('updatePlaylistIdx', {
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idx: this.currentPosition
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});
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// Enable autolead for non-twitch
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if(this.leader == null && this.currentMedia.type != "tw" && this.currentMedia.type != "li") {
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this.time = new Date().getTime();
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channelVideoUpdate(this, this.currentMedia.id);
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}
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}
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Channel.prototype.setLock = function(locked) {
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this.qlocked = locked;
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this.sendAll('queueLock', {locked: locked});
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for(var i = 0; i < this.users.length; i++) {
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this.sendPlaylist(this.users[i]);
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}
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}
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// Synchronize to a sync packet from the leader
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Channel.prototype.update = function(data) {
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if(this.currentMedia == null) {
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this.currentMedia = new Media(data.id, data.title, data.seconds, data.type);
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this.currentMedia.currentTime = data.currentTime;
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}
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else
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this.currentMedia.currentTime = data.seconds;
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this.sendAll('mediaUpdate', this.currentMedia.packupdate());
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}
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// Move something around in the queue
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Channel.prototype.moveMedia = function(data) {
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if(data.src < 0 || data.src >= this.queue.length)
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return;
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if(data.dest < 0 || data.dest > this.queue.length)
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return;
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var media = this.queue[data.src];
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this.queue.splice(data.src, 1);
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this.queue.splice(data.dest, 0, media);
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this.sendAll('moveVideo', {
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src: data.src,
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dest: data.dest
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});
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if(data.src < this.currentPosition && data.dest >= this.currentPosition) {
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this.currentPosition--;
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}
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if(data.src > this.currentPosition && data.dest < this.currentPosition) {
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this.currentPosition++
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}
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}
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// Chat message from a user
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Channel.prototype.chatMessage = function(user, msg) {
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if(msg.indexOf("/") == 0)
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ChatCommand.handle(this, user, msg);
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else if(msg.indexOf(">") == 0)
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this.sendMessage(user.name, msg, "greentext");
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else
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this.sendMessage(user.name, msg, "");
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}
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Channel.prototype.sendMessage = function(username, msg, msgclass) {
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// I don't want HTML from strangers
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msg = msg.replace(/</g, "<").replace(/>/g, ">");
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// Match URLs
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msg = msg.replace(/(((https?)|(ftp))(:\/\/[0-9a-zA-Z\.]+(:[0-9]+)?[^\s$]+))/, "<a href=\"$1\" target=\"_blank\">$1</a>");
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this.sendAll('chatMsg', {
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username: username,
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msg: msg,
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msgclass: msgclass
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});
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this.recentChat.push({
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username: username,
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msg: msg,
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msgclass: msgclass
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});
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if(this.recentChat.length > 15)
|
|
this.recentChat.shift();
|
|
};
|
|
|
|
// Promotion! Actor is the client who initiated the promotion, name is the
|
|
// name of the person being promoted
|
|
Channel.prototype.promoteUser = function(actor, name) {
|
|
var receiver;
|
|
for(var i = 0; i < this.users.length; i++) {
|
|
if(this.users[i].name == name) {
|
|
receiver = this.users[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(receiver) {
|
|
// You can only promote someone if you are 2 ranks or higher above
|
|
// them. This way you can't promote them to your rank and end
|
|
// up in a situation where you can't demote them
|
|
if(actor.rank > receiver.rank + 1) {
|
|
receiver.rank++;
|
|
if(receiver.loggedIn) {
|
|
this.saveRank(receiver);
|
|
}
|
|
this.broadcastRankUpdate(receiver);
|
|
}
|
|
}
|
|
}
|
|
|
|
// You're fired
|
|
Channel.prototype.demoteUser = function(actor, name) {
|
|
var receiver;
|
|
for(var i = 0; i < this.users.length; i++) {
|
|
if(this.users[i].name == name) {
|
|
receiver = this.users[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(receiver) {
|
|
// Wouldn't it be funny if you could demote people who rank higher
|
|
// than you? No, it wouldn't.
|
|
if(actor.rank > receiver.rank) {
|
|
receiver.rank--;
|
|
if(receiver.loggedIn) {
|
|
this.saveRank(receiver);
|
|
}
|
|
this.broadcastRankUpdate(receiver);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Manual leader. This shouldn't be necessary since the server autoleads,
|
|
// but you never know
|
|
Channel.prototype.changeLeader = function(name) {
|
|
if(this.leader != null) {
|
|
var old = this.leader;
|
|
this.leader = null;
|
|
this.broadcastRankUpdate(old);
|
|
}
|
|
if(name == "") {
|
|
if(this.currentMedia != null) {
|
|
this.time = new Date().getTime();
|
|
this.i = 0;
|
|
channelVideoUpdate(this, this.currentMedia.id);
|
|
}
|
|
return;
|
|
}
|
|
for(var i = 0; i < this.users.length; i++) {
|
|
if(this.users[i].name == name) {
|
|
this.leader = this.users[i];
|
|
this.broadcastRankUpdate(this.leader);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Send the userlist to a client
|
|
// Do you know you're all my very best friends?
|
|
Channel.prototype.sendUserlist = function(user) {
|
|
var users = [];
|
|
for(var i = 0; i < this.users.length; i++) {
|
|
// Skip people who haven't logged in
|
|
if(this.users[i].name != "") {
|
|
users.push({
|
|
name: this.users[i].name,
|
|
rank: this.users[i].rank,
|
|
leader: this.users[i] == this.leader
|
|
});
|
|
}
|
|
}
|
|
user.socket.emit('userlist', users)
|
|
}
|
|
|
|
Channel.prototype.updateUsercount = function() {
|
|
this.sendAll('usercount', {
|
|
count: this.users.length
|
|
});
|
|
}
|
|
|
|
// Send the play queue
|
|
Channel.prototype.sendPlaylist = function(user) {
|
|
user.socket.emit('playlist', {
|
|
pl: this.queue
|
|
});
|
|
user.socket.emit('updatePlaylistIdx', {
|
|
idx: this.currentPosition
|
|
});
|
|
}
|
|
|
|
// Send the last 15 messages for context
|
|
Channel.prototype.sendRecentChat = function(user) {
|
|
for(var i = 0; i < this.recentChat.length; i++) {
|
|
user.socket.emit('chatMsg', this.recentChat[i]);
|
|
}
|
|
}
|
|
|
|
// Send a sync packet
|
|
Channel.prototype.sendMediaUpdate = function(user) {
|
|
if(this.currentMedia != null) {
|
|
user.socket.emit('mediaUpdate', this.currentMedia.packupdate());
|
|
}
|
|
else {
|
|
console.log('currentMedia is null');
|
|
}
|
|
}
|
|
|
|
// Sent when someone logs in, to add them to the user list
|
|
Channel.prototype.broadcastNewUser = function(user) {
|
|
this.sendAll('addUser', {
|
|
name: user.name,
|
|
rank: user.rank,
|
|
leader: this.leader == user
|
|
});
|
|
}
|
|
|
|
// Someone's rank changed, or their leadership status changed
|
|
Channel.prototype.broadcastRankUpdate = function(user) {
|
|
this.sendAll('updateUser', {
|
|
name: user.name,
|
|
rank: user.rank,
|
|
leader: this.leader == user
|
|
});
|
|
}
|
|
|
|
Channel.prototype.broadcastPoll = function() {
|
|
this.sendAll('newPoll', this.poll.packUpdate());
|
|
}
|
|
|
|
Channel.prototype.broadcastPollUpdate = function() {
|
|
this.sendAll('updatePoll', this.poll.packUpdate());
|
|
}
|
|
|
|
Channel.prototype.broadcastPollClose = function() {
|
|
this.sendAll('closePoll');
|
|
}
|
|
|
|
// Send to ALL the clients!
|
|
Channel.prototype.sendAll = function(message, data) {
|
|
io.sockets.in(this.name).emit(message, data);
|
|
}
|
|
|
|
// Autolead yay
|
|
function channelVideoUpdate(chan, id) {
|
|
// Someone changed the video or there's a manual leader, so your
|
|
// argument is invalid
|
|
if(chan.currentMedia == null || id != chan.currentMedia.id || chan.leader != null)
|
|
return;
|
|
// Add dt since last update
|
|
chan.currentMedia.currentTime += (new Date().getTime() - chan.time)/1000.0;
|
|
chan.time = new Date().getTime();
|
|
// Video over, move on to next
|
|
if(chan.currentMedia.currentTime > chan.currentMedia.seconds) {
|
|
chan.playNext();
|
|
}
|
|
// Every ~5 seconds send a sync packet to everyone
|
|
else if(chan.i % 5 == 0)
|
|
chan.sendAll('mediaUpdate', chan.currentMedia.packupdate());
|
|
chan.i++;
|
|
// Do it all over again in about a second
|
|
setTimeout(function() { channelVideoUpdate(chan, id); }, 1000);
|
|
}
|
|
|
|
exports.Channel = Channel;
|