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<?php /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: / // {{{ Header /* * Class to generate playlists in m3u and other formats including smil, * sqlite, XHTML, RSS and raw XML * * PHP version 5 * * LICENSE: * * The PHP License, version 3.0 * * Copyright (c) 2004-2005 David Costa * * This source file is subject to version 3.0 of the PHP license, * that is bundled with this package in the file LICENSE, and is * available through the world-wide-web at the following url: * http://www.php.net/license/3_0.txt. * If you did not receive a copy of the PHP license and are unable to * obtain it through the world-wide-web, please send a note to * license@php.net so we can mail you a copy immediately. * * @category File Formats * @package MP3_Playlist * @author David Costa <gurugeek@php.net> * @author Ashley Hewson <morbidness@gmail.com> * @author Firman Wandayandi <firman@php.net> * @copyright Copyright (c) 2004-2005 David Costa * @license http://www.php.net/license/3_0.txt * The PHP License, version 3.0 * @version CVS: $Id: Playlist.php,v 1.2 2006/09/03 06:30:12 firman Exp $ / // }}} // {{{ Dependencies /* * Load PEAR_Exception for throw on error. / require_once 'PEAR/Exception.php'; /* * Require MP3 ID for extensive support of tags within a playlist / require_once 'MP3/Id.php'; /* * Load Net_URL for fix the given URL. / require_once 'Net/URL.php'; // }}} // {{{ Class: MP3_Playlist /* * Class MP3_Playlist * * A playlist can be used for both local use and remote streaming. * * The m3u playlist format is supported by Winamp, XMMS, Noatunes and several * other players. * * The Smil playlist format is supported by Real Media Player, Quicktime and * others XHTML allows you to display a fully formatted page or just the tables * to be included in your own template. * * RSS allows you to syndicate the playlist on the fly. The Sqlite function * allows you to backup the list in an existing sqlite database or to create a * database and the table on the fly. * * @category File Formats * @package MP3_Playlist * @author David Costa <gurugeek@php.net> * @author Ashley Hewson <morbidness@gmail.com> * @author Firman Wandayandi <firman@php.net> * @copyright Copyright (c) 2004-2005 David Costa * @license http://www.php.net/license/3_0.txt * The PHP License, version 3.0 * @version Release: 0.5.1alpha1 / class MP3_Playlist { // {{{ Object Constants /* * Error handling related Constants * Verbose error output in each of the cases / const E_CANNOT_OPENDIR = 'Unable to open the directory'; const E_CANNOT_SAVEFILE = 'Unable to save file'; const E_CANNOT_OPENDB = 'Unable to open the database'; const E_CANNOT_CREATETABLE = 'Unable to create the playlist table'; const E_CANNOT_INSERT = 'Unable to insert into the playlist table'; const E_CANNOT_SENDHEADER = 'Unable to send HTTP header'; const E_INVALID_MERGE = 'Unable to merge'; const E_INVALID_PLAYLIST = 'Invalid playlist'; const E_UNKNOWN_TYPE = 'Unknown format type'; const E_UNSUPPORTED_TYPE = 'Unsupported format type'; const E_NOT_SAVEABLE = 'Playlist format is not saveable'; const E_NOT_SENDABLE = 'Playlist format is not sendable'; const E_REQUIRED_PARAM = 'Required parameter'; /* * Output type made by MP3_Playlist. / const TYPE_M3U = 'M3U'; const TYPE_SMIL = 'SMIL'; const TYPE_XML = 'XML'; const TYPE_XHTML = 'XHTML'; const TYPE_RSS = 'RSS'; const TYPE_SQLITE = 'SQLITE'; // }}} // {{{ Static Properties public static $drivers = array( 'm3u' => array( 'file' => 'M3U.php', 'class' => 'MP3_Playlist_M3U' ), 'smil' => array( 'file' => 'SMIL.php', 'class' => 'MP3_Playlist_SMIL' ), 'xml' => array( 'file' => 'XML.php', 'class' => 'MP3_Playlist_XML' ), 'xhtml' => array( 'file' => 'XHTML.php', 'class' => 'MP3_Playlist_XHTML' ), 'rss' => array( 'file' => 'RSS.php', 'class' => 'MP3_Playlist_RSS' ), 'sqlite' => array( 'file' => 'SQLite.php', 'class' => 'MP3_Playlist_SQLite' ) ); // {{{ Object Variables /* * Debug value * @var string / public $debug = false; /* * Directory to Parse * @var string / private $parseDirectory; /* * Output directory, where the playlist is saved * @var string / private $outputDirectory; /* * Url to append on the playlist * @var string / private $baseUrl; /* * List of songs in an array, formatted after parsing * @var array / private $list = array(); /* * MP3_ID Object * @var string / private $mp3; /* * List of files including append directory, location and ID3 tags for XML * and other manipulation * @var array / private $merged = array(); /* * private variable to check if the method Mergelist is called * @var string / private $isMerged = false; /* * Driver object instance. * @var object / private $playlist = null; // }}} // {{{ Constructor /* * Instantiate a new MP3_Playlist object. * * Expects a reading directory, the output directory where the playlist will * be saved and the directory or URL to be used within the playlist. * * @param string $dir The directory to scan * @param string $outdir The directory where to save the playlist file * @param string $baseurl The base url to append on the playlist file * @param bool $debug (optional) Whether print debug message or not, default FALSE * * @return TRUE\|PEAR_Error * @see MP3_Playlist::fixPath() / public function __construct ($dir, $outdir, $baseurl, $debug = false) { // Taking the values from the constructor and assigning it to the // private variables $this->parseDirectory = self::fixPath($dir); $this->outputDirectory = self::fixPath($outdir); // Fix the URL if needed. if (substr($baseurl, -1) != '/') { $baseurl .= '/'; } $url = new Net_URL($baseurl); if (!empty($url->path)) { $dirs = explode('/', $url->path); foreach ($dirs as $key => $value) { if (!empty($value)) { $dirs[$key] = rawurlencode($value); } } $url->path = Net_URL::resolvePath(implode('/', $dirs)); } $this->baseUrl = $url->getURL(); $this->list = array(); // Instantiate the new MP3_If object $this->mp3 = new MP3_Id(); $this->debug = $debug; $this->parse(); } // }}} // {{{ debug() /* * Output debug message. * * @param string $msg Message. / private function debug($message) { if ($this->debug == true) { print 'MP3_Playlist Debug: ' . $message . "<br />\n"; } } // }}} // {{{ fixPath() /* * Convert Windows directory separator to Unix style and fix ending slash. * * @param string $dir Directory. * * @return string result. / static public function fixPath($dir) { $dir = str_replace("\\", '/', $dir); if (substr($dir, -1) != '/') { if (PEAR_OS == 'Windows' && substr($dir, -1) != '\\') { $dir .= '/'; } else { $dir .= '/'; } } return $dir; } // }}} // {{{ generateURL() /* * Generates the URL from absolute path. * * @param string $absPath Absolute path. * * @return string URL. / private function generateURL($absPath) { $absPath = str_replace($this->parseDirectory, '', $absPath); $paths = explode('/', $absPath); foreach ($paths as $key => $value) { if (empty($value)) { continue; } $paths[$key] = rawurlencode($value); } return $this->baseUrl . implode('/', $paths); } // }}} // {{{ parse() /* * Parses the MP3 directory defined in the constructor * * Appends to the files the append directory of MP3 files including * whitespace (necessary for streaming if the append path is a URL) adds * the basic list to the List and Merged Array List is used for basic * playlist writing while Merged will be used for XML and a more * complete output including the ID3 tags. * * @param bool $dir (optional) Directory to parse, this param use for recursive * purpose, default FALSE. * * @throws PEAR_Exception * @return bool TRUE * @see MP3_Playlist::fixPath() * @see MP3_Playlist::generateURL() / private function parse($dir = false) { if ($dir == false) { $dir = $this->parseDirectory; } // Attempt to open directory. $dh = @opendir($dir); if (!$dh) { throw new PEAR_Exception(self::E_CANNOT_OPENDIR, -1); } while (($entry = readdir($dh)) !== false) { if ($entry == '.' \|\| $entry == '..') { continue; } $abspath = self::fixPath($dir) . $entry; $this->debug('Got entry "' . $abspath . '"'); if (is_dir($abspath)) { $this->debug('Read subdirectory "' . $abspath . '"'); $this->parse($abspath); continue; } else if (strtolower(substr($entry, -4)) == '.mp3') { $url = $this->generateURL($abspath); $this->list[] = $url; // preparing the $this->merged array which will contain both the // $this->list basic information and more ID3 tags $this->merged[] = array( 'BaseName' => basename($entry), 'FullPath' => $abspath, 'URL' => $url, ); } } $this->debug('Merged list <pre>' . print_r($this->merged, true) . '</pre>'); return true; } // }}} // {{{ mergeList() /* * Merges the values from the parsed known elements like file location * and append URL with the ID3 tags * * Sets the value to Not Available if null in the ID3 tag. * Trims results to avoid error in the XML and XHTML display. * * @throws PEAR_Exception * @return bool TRUE * @see MP3_Id::read() / private function mergeList() { // We will use this in case someone tries to call a method like // makeXHTML before merging $this->isMerged = true; foreach($this->merged as $id => $detail) { // input debug $this->debug('Read file "' . $detail['FullPath'] . '"'); // reading each of the files in our array using the fullpath $temp = $this->mp3->read($detail['FullPath']); //if for some reason mp3 returns an error we raise a pear error if (PEAR::isError($temp)) { throw new PEAR_Exception(self::MP3_PLAYLIST_INVALID_MERG, -1); } // Adding the tags name, artist, genre and album to the merged // array. If not available, which happens in many mp3 files // add not available. // We trim to avoid any kind of problem with the XML XHTML or // RSS generation $title = trim($this->mp3->getTag('name')); if ($title && !empty($title)) { $this->merged[$id]['title'] = trim($title); } else { $this->merged[$id]['title'] = $detail['BaseName']; } $artist = trim($this->mp3->getTag('artists')); if ($artist && !empty($artist)){ $this->merged[$id]['artist'] = $artist; } else { $this->merged[$id]['artist'] = 'Unknown Artist'; } $album = trim($this->mp3->getTag('album')); if ($album && !empty($album)) { $this->merged[$id]['album'] = $album; } else { $this->merged[$id]['album'] = 'Not Available'; } $genre = trim($this->mp3->getTag('genre')); if ($genre && !empty($genre)) { $this->merged[$id]['genre'] = $genre; } else { $this->merged[$id]['genre'] = 'Not Available'; } } // output debug $this->debug('Merged list <pre>' . print_r($this->merged, true) . '</pre>'); return true; } // }}} // {{{ getList() /* * Get list of songs in an array, formatted after parsing. * * @return array / public function getList() { return $this->list; } // }}} // {{{ getMerged() /* * Get list of files including append directory, location and ID3 tags for XML * and other manipulation. * * @return array * @see MP3_Playlist::mergeList() / public function getMerged() { if (!$this->isMerged) { $this->mergeList(); } return $this->merged; } // }}} // {{{ make() /* * Generates the playlist according to selected format. * * @param string $type Format type, use one of constants * <pre> * MP3_Playlist::TYPE_M3U M3U playlist * MP3_Playlist::TYPE_SMILL SMILL playlist * MP3_Playlist::TYPE_XML XML format * MP3_Playlist::TYPE_XHTML XHTML output * MP3_Playlist::TYPE_RSS RSS output * MP3_Playlist::TYPE_SQLITE Save to SQLite database * </pre> * @param array $params (optional) Parameters, an associative array contains * values depend on the format. * @param bool $shuffle (optional) Whether to shuffle the list or not. * This parameter only affect on formats * M3U, SMILL and XHTML * * @throws PEAR_Exception * @return bool TRUE * @see MP3_Playlist_Common::__construct() * @see MP3_Playlist_M3U::make() * @see MP3_Playlist_SMIL::make() * @see MP3_Playlist_XML::make() * @see MP3_Playlist_XHTML::make() * @see MP3_Playlist_RSS::make() * @see MP3_Playlist_SQLite::make() / public function make($type, $params = array(), $shuffle = false) { $type = strtolower($type); if (!isset(self::$drivers[$type])) { throw new PEAR_Exception(self::E_UNSUPPORTED_TYPE); } $file = 'MP3/Playlist/' . self::$drivers[$type]['file']; $class = self::$drivers[$type]['class']; include_once($file); $this->playlist = new $class($this, $shuffle, $this->debug); return $this->playlist->make($params); } // }}} // {{{ save() /* * Save the generated playlist into file. * * @param string $filename (optional) A filename for save * (without file extension). * * @throws PEAR_Exception * @return bool TRUE * @see MP3_Playlist_Common::save() / public function save($filename = 'playlist') { if (!is_object($this->playlist) \|\| !is_a($this->playlist, 'MP3_Playlist_Common')) { throw new PEAR_Exception(self::E_INVALID_PLAYLIST); } return $this->playlist->save($this->outputDirectory, $filename); } // }}} // {{{ send() /* * Send the generated playlist to browser directly. * * @param string $filename (optional) A filename for send * (without file extension). * * @throws PEAR_Exception * @return bool TRUE * @see MP3_Playlist_Common::send() / public function send($filename = 'playlist') { if (!is_object($this->playlist) \|\| !is_a($this->playlist, 'MP3_Playlist_Common')) { throw new PEAR_Exception(self::E_INVALID_PLAYLIST); } return $this->playlist->send($filename); } // }}} // {{{ show() /* * Show the generated playlist result * * @throws PEAR_Exception * @see MP3_Playlist_Common::show() / public function show() { if (!is_object($this->playlist) \|\| !is_a($this->playlist, 'MP3_Playlist_Common')) { throw new PEAR_Exception(self::E_INVALID_PLAYLIST); } return $this->playlist->show(); } // }}} } // }}} / * Local variables: * mode: php * tab-width: 4 * c-basic-offset: 4 * c-hanging-comment-ender-p: nil * End: */ ?>

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