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1844 lines
65 KiB
1844 lines
65 KiB
<?php |
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///////////////////////////////////////////////////////////////// |
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/// getID3() by James Heinrich <info@getid3.org> // |
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// available at http://getid3.sourceforge.net // |
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// or http://www.getid3.org // |
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// also https://github.com/JamesHeinrich/getID3 // |
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///////////////////////////////////////////////////////////////// |
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// // |
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// Please see readme.txt for more information // |
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// /// |
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///////////////////////////////////////////////////////////////// |
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|
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// define a constant rather than looking up every time it is needed |
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if (!defined('GETID3_OS_ISWINDOWS')) { |
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define('GETID3_OS_ISWINDOWS', (stripos(PHP_OS, 'WIN') === 0)); |
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} |
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// Get base path of getID3() - ONCE |
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if (!defined('GETID3_INCLUDEPATH')) { |
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define('GETID3_INCLUDEPATH', dirname(__FILE__).DIRECTORY_SEPARATOR); |
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} |
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// Workaround Bug #39923 (https://bugs.php.net/bug.php?id=39923) |
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if (!defined('IMG_JPG') && defined('IMAGETYPE_JPEG')) { |
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define('IMG_JPG', IMAGETYPE_JPEG); |
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} |
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if (!defined('ENT_SUBSTITUTE')) { // PHP5.3 adds ENT_IGNORE, PHP5.4 adds ENT_SUBSTITUTE |
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define('ENT_SUBSTITUTE', (defined('ENT_IGNORE') ? ENT_IGNORE : 8)); |
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} |
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|
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// attempt to define temp dir as something flexible but reliable |
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$temp_dir = ini_get('upload_tmp_dir'); |
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if ($temp_dir && (!is_dir($temp_dir) || !is_readable($temp_dir))) { |
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$temp_dir = ''; |
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} |
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if (!$temp_dir && function_exists('sys_get_temp_dir')) { // sys_get_temp_dir added in PHP v5.2.1 |
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// sys_get_temp_dir() may give inaccessible temp dir, e.g. with open_basedir on virtual hosts |
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$temp_dir = sys_get_temp_dir(); |
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} |
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$temp_dir = @realpath($temp_dir); // see https://github.com/JamesHeinrich/getID3/pull/10 |
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$open_basedir = ini_get('open_basedir'); |
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if ($open_basedir) { |
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// e.g. "/var/www/vhosts/getid3.org/httpdocs/:/tmp/" |
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$temp_dir = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $temp_dir); |
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$open_basedir = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $open_basedir); |
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if (substr($temp_dir, -1, 1) != DIRECTORY_SEPARATOR) { |
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$temp_dir .= DIRECTORY_SEPARATOR; |
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} |
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$found_valid_tempdir = false; |
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$open_basedirs = explode(PATH_SEPARATOR, $open_basedir); |
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foreach ($open_basedirs as $basedir) { |
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if (substr($basedir, -1, 1) != DIRECTORY_SEPARATOR) { |
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$basedir .= DIRECTORY_SEPARATOR; |
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} |
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if (preg_match('#^'.preg_quote($basedir).'#', $temp_dir)) { |
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$found_valid_tempdir = true; |
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break; |
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} |
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} |
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if (!$found_valid_tempdir) { |
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$temp_dir = ''; |
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} |
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unset($open_basedirs, $found_valid_tempdir, $basedir); |
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} |
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if (!$temp_dir) { |
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$temp_dir = '*'; // invalid directory name should force tempnam() to use system default temp dir |
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} |
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// $temp_dir = '/something/else/'; // feel free to override temp dir here if it works better for your system |
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if (!defined('GETID3_TEMP_DIR')) { |
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define('GETID3_TEMP_DIR', $temp_dir); |
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} |
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unset($open_basedir, $temp_dir); |
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|
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// End: Defines |
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class getID3 |
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{ |
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// public: Settings |
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public $encoding = 'UTF-8'; // CASE SENSITIVE! - i.e. (must be supported by iconv()). Examples: ISO-8859-1 UTF-8 UTF-16 UTF-16BE |
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public $encoding_id3v1 = 'ISO-8859-1'; // Should always be 'ISO-8859-1', but some tags may be written in other encodings such as 'EUC-CN' or 'CP1252' |
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// public: Optional tag checks - disable for speed. |
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public $option_tag_id3v1 = true; // Read and process ID3v1 tags |
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public $option_tag_id3v2 = true; // Read and process ID3v2 tags |
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public $option_tag_lyrics3 = true; // Read and process Lyrics3 tags |
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public $option_tag_apetag = true; // Read and process APE tags |
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public $option_tags_process = true; // Copy tags to root key 'tags' and encode to $this->encoding |
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public $option_tags_html = true; // Copy tags to root key 'tags_html' properly translated from various encodings to HTML entities |
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|
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// public: Optional tag/comment calucations |
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public $option_extra_info = true; // Calculate additional info such as bitrate, channelmode etc |
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// public: Optional handling of embedded attachments (e.g. images) |
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public $option_save_attachments = true; // defaults to true (ATTACHMENTS_INLINE) for backward compatibility |
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|
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// public: Optional calculations |
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public $option_md5_data = false; // Get MD5 sum of data part - slow |
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public $option_md5_data_source = false; // Use MD5 of source file if availble - only FLAC and OptimFROG |
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public $option_sha1_data = false; // Get SHA1 sum of data part - slow |
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public $option_max_2gb_check = null; // Check whether file is larger than 2GB and thus not supported by 32-bit PHP (null: auto-detect based on PHP_INT_MAX) |
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// public: Read buffer size in bytes |
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public $option_fread_buffer_size = 32768; |
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// Public variables |
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public $filename; // Filename of file being analysed. |
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public $fp; // Filepointer to file being analysed. |
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public $info; // Result array. |
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public $tempdir = GETID3_TEMP_DIR; |
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public $memory_limit = 0; |
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// Protected variables |
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protected $startup_error = ''; |
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protected $startup_warning = ''; |
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const VERSION = '1.9.14-201706111222'; |
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const FREAD_BUFFER_SIZE = 32768; |
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const ATTACHMENTS_NONE = false; |
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const ATTACHMENTS_INLINE = true; |
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// public: constructor |
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public function __construct() { |
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|
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// Check memory |
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$this->memory_limit = ini_get('memory_limit'); |
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if (preg_match('#([0-9]+) ?M#i', $this->memory_limit, $matches)) { |
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// could be stored as "16M" rather than 16777216 for example |
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$this->memory_limit = $matches[1] * 1048576; |
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} elseif (preg_match('#([0-9]+) ?G#i', $this->memory_limit, $matches)) { // The 'G' modifier is available since PHP 5.1.0 |
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// could be stored as "2G" rather than 2147483648 for example |
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$this->memory_limit = $matches[1] * 1073741824; |
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} |
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if ($this->memory_limit <= 0) { |
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// memory limits probably disabled |
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} elseif ($this->memory_limit <= 4194304) { |
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$this->startup_error .= 'PHP has less than 4MB available memory and will very likely run out. Increase memory_limit in php.ini'."\n"; |
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} elseif ($this->memory_limit <= 12582912) { |
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$this->startup_warning .= 'PHP has less than 12MB available memory and might run out if all modules are loaded. Increase memory_limit in php.ini'."\n"; |
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} |
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// Check safe_mode off |
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if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) { |
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$this->warning('WARNING: Safe mode is on, shorten support disabled, md5data/sha1data for ogg vorbis disabled, ogg vorbos/flac tag writing disabled.'); |
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} |
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if (($mbstring_func_overload = ini_get('mbstring.func_overload')) && ($mbstring_func_overload & 0x02)) { |
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// http://php.net/manual/en/mbstring.overload.php |
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// "mbstring.func_overload in php.ini is a positive value that represents a combination of bitmasks specifying the categories of functions to be overloaded. It should be set to 1 to overload the mail() function. 2 for string functions, 4 for regular expression functions" |
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// getID3 cannot run when string functions are overloaded. It doesn't matter if mail() or ereg* functions are overloaded since getID3 does not use those. |
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$this->startup_error .= 'WARNING: php.ini contains "mbstring.func_overload = '.ini_get('mbstring.func_overload').'", getID3 cannot run with this setting (bitmask 2 (string functions) cannot be set). Recommended to disable entirely.'."\n"; |
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} |
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// Check for magic_quotes_runtime |
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if (function_exists('get_magic_quotes_runtime')) { |
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if (get_magic_quotes_runtime()) { |
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$this->startup_error .= 'magic_quotes_runtime must be disabled before running getID3(). Surround getid3 block by set_magic_quotes_runtime(0) and set_magic_quotes_runtime(1).'."\n"; |
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} |
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} |
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// Check for magic_quotes_gpc |
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if (function_exists('magic_quotes_gpc')) { |
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if (get_magic_quotes_gpc()) { |
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$this->startup_error .= 'magic_quotes_gpc must be disabled before running getID3(). Surround getid3 block by set_magic_quotes_gpc(0) and set_magic_quotes_gpc(1).'."\n"; |
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} |
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} |
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// Load support library |
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if (!include_once(GETID3_INCLUDEPATH.'getid3.lib.php')) { |
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$this->startup_error .= 'getid3.lib.php is missing or corrupt'."\n"; |
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} |
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if ($this->option_max_2gb_check === null) { |
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$this->option_max_2gb_check = (PHP_INT_MAX <= 2147483647); |
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} |
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// Needed for Windows only: |
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// Define locations of helper applications for Shorten, VorbisComment, MetaFLAC |
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// as well as other helper functions such as head, tail, md5sum, etc |
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// This path cannot contain spaces, but the below code will attempt to get the |
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// 8.3-equivalent path automatically |
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// IMPORTANT: This path must include the trailing slash |
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if (GETID3_OS_ISWINDOWS && !defined('GETID3_HELPERAPPSDIR')) { |
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|
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$helperappsdir = GETID3_INCLUDEPATH.'..'.DIRECTORY_SEPARATOR.'helperapps'; // must not have any space in this path |
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if (!is_dir($helperappsdir)) { |
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$this->startup_warning .= '"'.$helperappsdir.'" cannot be defined as GETID3_HELPERAPPSDIR because it does not exist'."\n"; |
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} elseif (strpos(realpath($helperappsdir), ' ') !== false) { |
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$DirPieces = explode(DIRECTORY_SEPARATOR, realpath($helperappsdir)); |
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$path_so_far = array(); |
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foreach ($DirPieces as $key => $value) { |
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if (strpos($value, ' ') !== false) { |
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if (!empty($path_so_far)) { |
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$commandline = 'dir /x '.escapeshellarg(implode(DIRECTORY_SEPARATOR, $path_so_far)); |
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$dir_listing = `$commandline`; |
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$lines = explode("\n", $dir_listing); |
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foreach ($lines as $line) { |
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$line = trim($line); |
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if (preg_match('#^([0-9/]{10}) +([0-9:]{4,5}( [AP]M)?) +(<DIR>|[0-9,]+) +([^ ]{0,11}) +(.+)$#', $line, $matches)) { |
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list($dummy, $date, $time, $ampm, $filesize, $shortname, $filename) = $matches; |
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if ((strtoupper($filesize) == '<DIR>') && (strtolower($filename) == strtolower($value))) { |
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$value = $shortname; |
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} |
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} |
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} |
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} else { |
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$this->startup_warning .= 'GETID3_HELPERAPPSDIR must not have any spaces in it - use 8dot3 naming convention if neccesary. You can run "dir /x" from the commandline to see the correct 8.3-style names.'."\n"; |
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} |
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} |
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$path_so_far[] = $value; |
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} |
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$helperappsdir = implode(DIRECTORY_SEPARATOR, $path_so_far); |
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} |
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define('GETID3_HELPERAPPSDIR', $helperappsdir.DIRECTORY_SEPARATOR); |
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} |
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if (!empty($this->startup_error)) { |
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echo $this->startup_error; |
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throw new getid3_exception($this->startup_error); |
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} |
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return true; |
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} |
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public function version() { |
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return self::VERSION; |
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} |
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public function fread_buffer_size() { |
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return $this->option_fread_buffer_size; |
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} |
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// public: setOption |
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public function setOption($optArray) { |
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if (!is_array($optArray) || empty($optArray)) { |
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return false; |
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} |
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foreach ($optArray as $opt => $val) { |
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if (isset($this->$opt) === false) { |
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continue; |
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} |
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$this->$opt = $val; |
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} |
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return true; |
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} |
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public function openfile($filename, $filesize=null) { |
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try { |
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if (!empty($this->startup_error)) { |
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throw new getid3_exception($this->startup_error); |
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} |
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if (!empty($this->startup_warning)) { |
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foreach (explode("\n", $this->startup_warning) as $startup_warning) { |
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$this->warning($startup_warning); |
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} |
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} |
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// init result array and set parameters |
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$this->filename = $filename; |
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$this->info = array(); |
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$this->info['GETID3_VERSION'] = $this->version(); |
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$this->info['php_memory_limit'] = (($this->memory_limit > 0) ? $this->memory_limit : false); |
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|
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// remote files not supported |
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if (preg_match('#^(ht|f)tp://#', $filename)) { |
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throw new getid3_exception('Remote files are not supported - please copy the file locally first'); |
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} |
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$filename = str_replace('/', DIRECTORY_SEPARATOR, $filename); |
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$filename = preg_replace('#(?<!gs:)('.preg_quote(DIRECTORY_SEPARATOR).'{2,})#', DIRECTORY_SEPARATOR, $filename); |
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// open local file |
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//if (is_readable($filename) && is_file($filename) && ($this->fp = fopen($filename, 'rb'))) { // see http://www.getid3.org/phpBB3/viewtopic.php?t=1720 |
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if ((is_readable($filename) || file_exists($filename)) && is_file($filename) && ($this->fp = fopen($filename, 'rb'))) { |
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// great |
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} else { |
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$errormessagelist = array(); |
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if (!is_readable($filename)) { |
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$errormessagelist[] = '!is_readable'; |
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} |
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if (!is_file($filename)) { |
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$errormessagelist[] = '!is_file'; |
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} |
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if (!file_exists($filename)) { |
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$errormessagelist[] = '!file_exists'; |
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} |
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if (empty($errormessagelist)) { |
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$errormessagelist[] = 'fopen failed'; |
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} |
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throw new getid3_exception('Could not open "'.$filename.'" ('.implode('; ', $errormessagelist).')'); |
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} |
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|
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$this->info['filesize'] = (!is_null($filesize) ? $filesize : filesize($filename)); |
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// set redundant parameters - might be needed in some include file |
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// filenames / filepaths in getID3 are always expressed with forward slashes (unix-style) for both Windows and other to try and minimize confusion |
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$filename = str_replace('\\', '/', $filename); |
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$this->info['filepath'] = str_replace('\\', '/', realpath(dirname($filename))); |
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$this->info['filename'] = getid3_lib::mb_basename($filename); |
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$this->info['filenamepath'] = $this->info['filepath'].'/'.$this->info['filename']; |
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|
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// set more parameters |
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$this->info['avdataoffset'] = 0; |
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$this->info['avdataend'] = $this->info['filesize']; |
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$this->info['fileformat'] = ''; // filled in later |
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$this->info['audio']['dataformat'] = ''; // filled in later, unset if not used |
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$this->info['video']['dataformat'] = ''; // filled in later, unset if not used |
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$this->info['tags'] = array(); // filled in later, unset if not used |
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$this->info['error'] = array(); // filled in later, unset if not used |
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$this->info['warning'] = array(); // filled in later, unset if not used |
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$this->info['comments'] = array(); // filled in later, unset if not used |
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$this->info['encoding'] = $this->encoding; // required by id3v2 and iso modules - can be unset at the end if desired |
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|
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// option_max_2gb_check |
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if ($this->option_max_2gb_check) { |
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// PHP (32-bit all, and 64-bit Windows) doesn't support integers larger than 2^31 (~2GB) |
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// filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize |
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// ftell() returns 0 if seeking to the end is beyond the range of unsigned integer |
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$fseek = fseek($this->fp, 0, SEEK_END); |
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if (($fseek < 0) || (($this->info['filesize'] != 0) && (ftell($this->fp) == 0)) || |
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($this->info['filesize'] < 0) || |
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(ftell($this->fp) < 0)) { |
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$real_filesize = getid3_lib::getFileSizeSyscall($this->info['filenamepath']); |
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|
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if ($real_filesize === false) { |
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unset($this->info['filesize']); |
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fclose($this->fp); |
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throw new getid3_exception('Unable to determine actual filesize. File is most likely larger than '.round(PHP_INT_MAX / 1073741824).'GB and is not supported by PHP.'); |
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} elseif (getid3_lib::intValueSupported($real_filesize)) { |
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unset($this->info['filesize']); |
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fclose($this->fp); |
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throw new getid3_exception('PHP seems to think the file is larger than '.round(PHP_INT_MAX / 1073741824).'GB, but filesystem reports it as '.number_format($real_filesize, 3).'GB, please report to info@getid3.org'); |
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} |
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$this->info['filesize'] = $real_filesize; |
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$this->warning('File is larger than '.round(PHP_INT_MAX / 1073741824).'GB (filesystem reports it as '.number_format($real_filesize, 3).'GB) and is not properly supported by PHP.'); |
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} |
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} |
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|
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return true; |
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|
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} catch (Exception $e) { |
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$this->error($e->getMessage()); |
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} |
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return false; |
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} |
|
|
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// public: analyze file |
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public function analyze($filename, $filesize=null, $original_filename='') { |
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try { |
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if (!$this->openfile($filename, $filesize)) { |
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return $this->info; |
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} |
|
|
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// Handle tags |
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foreach (array('id3v2'=>'id3v2', 'id3v1'=>'id3v1', 'apetag'=>'ape', 'lyrics3'=>'lyrics3') as $tag_name => $tag_key) { |
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$option_tag = 'option_tag_'.$tag_name; |
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if ($this->$option_tag) { |
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$this->include_module('tag.'.$tag_name); |
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try { |
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$tag_class = 'getid3_'.$tag_name; |
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$tag = new $tag_class($this); |
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$tag->Analyze(); |
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} |
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catch (getid3_exception $e) { |
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throw $e; |
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} |
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} |
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} |
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if (isset($this->info['id3v2']['tag_offset_start'])) { |
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$this->info['avdataoffset'] = max($this->info['avdataoffset'], $this->info['id3v2']['tag_offset_end']); |
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} |
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foreach (array('id3v1'=>'id3v1', 'apetag'=>'ape', 'lyrics3'=>'lyrics3') as $tag_name => $tag_key) { |
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if (isset($this->info[$tag_key]['tag_offset_start'])) { |
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$this->info['avdataend'] = min($this->info['avdataend'], $this->info[$tag_key]['tag_offset_start']); |
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} |
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} |
|
|
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// ID3v2 detection (NOT parsing), even if ($this->option_tag_id3v2 == false) done to make fileformat easier |
|
if (!$this->option_tag_id3v2) { |
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fseek($this->fp, 0); |
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$header = fread($this->fp, 10); |
|
if ((substr($header, 0, 3) == 'ID3') && (strlen($header) == 10)) { |
|
$this->info['id3v2']['header'] = true; |
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$this->info['id3v2']['majorversion'] = ord($header{3}); |
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$this->info['id3v2']['minorversion'] = ord($header{4}); |
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$this->info['avdataoffset'] += getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length |
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} |
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} |
|
|
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// read 32 kb file data |
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fseek($this->fp, $this->info['avdataoffset']); |
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$formattest = fread($this->fp, 32774); |
|
|
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// determine format |
|
$determined_format = $this->GetFileFormat($formattest, ($original_filename ? $original_filename : $filename)); |
|
|
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// unable to determine file format |
|
if (!$determined_format) { |
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fclose($this->fp); |
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return $this->error('unable to determine file format'); |
|
} |
|
|
|
// check for illegal ID3 tags |
|
if (isset($determined_format['fail_id3']) && (in_array('id3v1', $this->info['tags']) || in_array('id3v2', $this->info['tags']))) { |
|
if ($determined_format['fail_id3'] === 'ERROR') { |
|
fclose($this->fp); |
|
return $this->error('ID3 tags not allowed on this file type.'); |
|
} elseif ($determined_format['fail_id3'] === 'WARNING') { |
|
$this->warning('ID3 tags not allowed on this file type.'); |
|
} |
|
} |
|
|
|
// check for illegal APE tags |
|
if (isset($determined_format['fail_ape']) && in_array('ape', $this->info['tags'])) { |
|
if ($determined_format['fail_ape'] === 'ERROR') { |
|
fclose($this->fp); |
|
return $this->error('APE tags not allowed on this file type.'); |
|
} elseif ($determined_format['fail_ape'] === 'WARNING') { |
|
$this->warning('APE tags not allowed on this file type.'); |
|
} |
|
} |
|
|
|
// set mime type |
|
$this->info['mime_type'] = $determined_format['mime_type']; |
|
|
|
// supported format signature pattern detected, but module deleted |
|
if (!file_exists(GETID3_INCLUDEPATH.$determined_format['include'])) { |
|
fclose($this->fp); |
|
return $this->error('Format not supported, module "'.$determined_format['include'].'" was removed.'); |
|
} |
|
|
|
// module requires mb_convert_encoding/iconv support |
|
// Check encoding/iconv support |
|
if (!empty($determined_format['iconv_req']) && !function_exists('mb_convert_encoding') && !function_exists('iconv') && !in_array($this->encoding, array('ISO-8859-1', 'UTF-8', 'UTF-16LE', 'UTF-16BE', 'UTF-16'))) { |
|
$errormessage = 'mb_convert_encoding() or iconv() support is required for this module ('.$determined_format['include'].') for encodings other than ISO-8859-1, UTF-8, UTF-16LE, UTF16-BE, UTF-16. '; |
|
if (GETID3_OS_ISWINDOWS) { |
|
$errormessage .= 'PHP does not have mb_convert_encoding() or iconv() support. Please enable php_mbstring.dll / php_iconv.dll in php.ini, and copy php_mbstring.dll / iconv.dll from c:/php/dlls to c:/windows/system32'; |
|
} else { |
|
$errormessage .= 'PHP is not compiled with mb_convert_encoding() or iconv() support. Please recompile with the --enable-mbstring / --with-iconv switch'; |
|
} |
|
return $this->error($errormessage); |
|
} |
|
|
|
// include module |
|
include_once(GETID3_INCLUDEPATH.$determined_format['include']); |
|
|
|
// instantiate module class |
|
$class_name = 'getid3_'.$determined_format['module']; |
|
if (!class_exists($class_name)) { |
|
return $this->error('Format not supported, module "'.$determined_format['include'].'" is corrupt.'); |
|
} |
|
$class = new $class_name($this); |
|
$class->Analyze(); |
|
unset($class); |
|
|
|
// close file |
|
fclose($this->fp); |
|
|
|
// process all tags - copy to 'tags' and convert charsets |
|
if ($this->option_tags_process) { |
|
$this->HandleAllTags(); |
|
} |
|
|
|
// perform more calculations |
|
if ($this->option_extra_info) { |
|
$this->ChannelsBitratePlaytimeCalculations(); |
|
$this->CalculateCompressionRatioVideo(); |
|
$this->CalculateCompressionRatioAudio(); |
|
$this->CalculateReplayGain(); |
|
$this->ProcessAudioStreams(); |
|
} |
|
|
|
// get the MD5 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags |
|
if ($this->option_md5_data) { |
|
// do not calc md5_data if md5_data_source is present - set by flac only - future MPC/SV8 too |
|
if (!$this->option_md5_data_source || empty($this->info['md5_data_source'])) { |
|
$this->getHashdata('md5'); |
|
} |
|
} |
|
|
|
// get the SHA1 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags |
|
if ($this->option_sha1_data) { |
|
$this->getHashdata('sha1'); |
|
} |
|
|
|
// remove undesired keys |
|
$this->CleanUp(); |
|
|
|
} catch (Exception $e) { |
|
$this->error('Caught exception: '.$e->getMessage()); |
|
} |
|
|
|
// return info array |
|
return $this->info; |
|
} |
|
|
|
|
|
// private: error handling |
|
public function error($message) { |
|
$this->CleanUp(); |
|
if (!isset($this->info['error'])) { |
|
$this->info['error'] = array(); |
|
} |
|
$this->info['error'][] = $message; |
|
return $this->info; |
|
} |
|
|
|
|
|
// private: warning handling |
|
public function warning($message) { |
|
$this->info['warning'][] = $message; |
|
return true; |
|
} |
|
|
|
|
|
// private: CleanUp |
|
private function CleanUp() { |
|
|
|
// remove possible empty keys |
|
$AVpossibleEmptyKeys = array('dataformat', 'bits_per_sample', 'encoder_options', 'streams', 'bitrate'); |
|
foreach ($AVpossibleEmptyKeys as $dummy => $key) { |
|
if (empty($this->info['audio'][$key]) && isset($this->info['audio'][$key])) { |
|
unset($this->info['audio'][$key]); |
|
} |
|
if (empty($this->info['video'][$key]) && isset($this->info['video'][$key])) { |
|
unset($this->info['video'][$key]); |
|
} |
|
} |
|
|
|
// remove empty root keys |
|
if (!empty($this->info)) { |
|
foreach ($this->info as $key => $value) { |
|
if (empty($this->info[$key]) && ($this->info[$key] !== 0) && ($this->info[$key] !== '0')) { |
|
unset($this->info[$key]); |
|
} |
|
} |
|
} |
|
|
|
// remove meaningless entries from unknown-format files |
|
if (empty($this->info['fileformat'])) { |
|
if (isset($this->info['avdataoffset'])) { |
|
unset($this->info['avdataoffset']); |
|
} |
|
if (isset($this->info['avdataend'])) { |
|
unset($this->info['avdataend']); |
|
} |
|
} |
|
|
|
// remove possible duplicated identical entries |
|
if (!empty($this->info['error'])) { |
|
$this->info['error'] = array_values(array_unique($this->info['error'])); |
|
} |
|
if (!empty($this->info['warning'])) { |
|
$this->info['warning'] = array_values(array_unique($this->info['warning'])); |
|
} |
|
|
|
// remove "global variable" type keys |
|
unset($this->info['php_memory_limit']); |
|
|
|
return true; |
|
} |
|
|
|
|
|
// return array containing information about all supported formats |
|
public function GetFileFormatArray() { |
|
static $format_info = array(); |
|
if (empty($format_info)) { |
|
$format_info = array( |
|
|
|
// Audio formats |
|
|
|
// AC-3 - audio - Dolby AC-3 / Dolby Digital |
|
'ac3' => array( |
|
'pattern' => '^\\x0B\\x77', |
|
'group' => 'audio', |
|
'module' => 'ac3', |
|
'mime_type' => 'audio/ac3', |
|
), |
|
|
|
// AAC - audio - Advanced Audio Coding (AAC) - ADIF format |
|
'adif' => array( |
|
'pattern' => '^ADIF', |
|
'group' => 'audio', |
|
'module' => 'aac', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_ape' => 'WARNING', |
|
), |
|
|
|
/* |
|
// AA - audio - Audible Audiobook |
|
'aa' => array( |
|
'pattern' => '^.{4}\\x57\\x90\\x75\\x36', |
|
'group' => 'audio', |
|
'module' => 'aa', |
|
'mime_type' => 'audio/audible', |
|
), |
|
*/ |
|
// AAC - audio - Advanced Audio Coding (AAC) - ADTS format (very similar to MP3) |
|
'adts' => array( |
|
'pattern' => '^\\xFF[\\xF0-\\xF1\\xF8-\\xF9]', |
|
'group' => 'audio', |
|
'module' => 'aac', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_ape' => 'WARNING', |
|
), |
|
|
|
|
|
// AU - audio - NeXT/Sun AUdio (AU) |
|
'au' => array( |
|
'pattern' => '^\\.snd', |
|
'group' => 'audio', |
|
'module' => 'au', |
|
'mime_type' => 'audio/basic', |
|
), |
|
|
|
// AMR - audio - Adaptive Multi Rate |
|
'amr' => array( |
|
'pattern' => '^\\x23\\x21AMR\\x0A', // #!AMR[0A] |
|
'group' => 'audio', |
|
'module' => 'amr', |
|
'mime_type' => 'audio/amr', |
|
), |
|
|
|
// AVR - audio - Audio Visual Research |
|
'avr' => array( |
|
'pattern' => '^2BIT', |
|
'group' => 'audio', |
|
'module' => 'avr', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// BONK - audio - Bonk v0.9+ |
|
'bonk' => array( |
|
'pattern' => '^\\x00(BONK|INFO|META| ID3)', |
|
'group' => 'audio', |
|
'module' => 'bonk', |
|
'mime_type' => 'audio/xmms-bonk', |
|
), |
|
|
|
// DSF - audio - Direct Stream Digital (DSD) Storage Facility files (DSF) - https://en.wikipedia.org/wiki/Direct_Stream_Digital |
|
'dsf' => array( |
|
'pattern' => '^DSD ', // including trailing space: 44 53 44 20 |
|
'group' => 'audio', |
|
'module' => 'dsf', |
|
'mime_type' => 'audio/dsd', |
|
), |
|
|
|
// DSS - audio - Digital Speech Standard |
|
'dss' => array( |
|
'pattern' => '^[\\x02-\\x06]ds[s2]', |
|
'group' => 'audio', |
|
'module' => 'dss', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// DTS - audio - Dolby Theatre System |
|
'dts' => array( |
|
'pattern' => '^\\x7F\\xFE\\x80\\x01', |
|
'group' => 'audio', |
|
'module' => 'dts', |
|
'mime_type' => 'audio/dts', |
|
), |
|
|
|
// FLAC - audio - Free Lossless Audio Codec |
|
'flac' => array( |
|
'pattern' => '^fLaC', |
|
'group' => 'audio', |
|
'module' => 'flac', |
|
'mime_type' => 'audio/x-flac', |
|
), |
|
|
|
// LA - audio - Lossless Audio (LA) |
|
'la' => array( |
|
'pattern' => '^LA0[2-4]', |
|
'group' => 'audio', |
|
'module' => 'la', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// LPAC - audio - Lossless Predictive Audio Compression (LPAC) |
|
'lpac' => array( |
|
'pattern' => '^LPAC', |
|
'group' => 'audio', |
|
'module' => 'lpac', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// MIDI - audio - MIDI (Musical Instrument Digital Interface) |
|
'midi' => array( |
|
'pattern' => '^MThd', |
|
'group' => 'audio', |
|
'module' => 'midi', |
|
'mime_type' => 'audio/midi', |
|
), |
|
|
|
// MAC - audio - Monkey's Audio Compressor |
|
'mac' => array( |
|
'pattern' => '^MAC ', |
|
'group' => 'audio', |
|
'module' => 'monkey', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// has been known to produce false matches in random files (e.g. JPEGs), leave out until more precise matching available |
|
// // MOD - audio - MODule (assorted sub-formats) |
|
// 'mod' => array( |
|
// 'pattern' => '^.{1080}(M\\.K\\.|M!K!|FLT4|FLT8|[5-9]CHN|[1-3][0-9]CH)', |
|
// 'group' => 'audio', |
|
// 'module' => 'mod', |
|
// 'option' => 'mod', |
|
// 'mime_type' => 'audio/mod', |
|
// ), |
|
|
|
// MOD - audio - MODule (Impulse Tracker) |
|
'it' => array( |
|
'pattern' => '^IMPM', |
|
'group' => 'audio', |
|
'module' => 'mod', |
|
//'option' => 'it', |
|
'mime_type' => 'audio/it', |
|
), |
|
|
|
// MOD - audio - MODule (eXtended Module, various sub-formats) |
|
'xm' => array( |
|
'pattern' => '^Extended Module', |
|
'group' => 'audio', |
|
'module' => 'mod', |
|
//'option' => 'xm', |
|
'mime_type' => 'audio/xm', |
|
), |
|
|
|
// MOD - audio - MODule (ScreamTracker) |
|
's3m' => array( |
|
'pattern' => '^.{44}SCRM', |
|
'group' => 'audio', |
|
'module' => 'mod', |
|
//'option' => 's3m', |
|
'mime_type' => 'audio/s3m', |
|
), |
|
|
|
// MPC - audio - Musepack / MPEGplus |
|
'mpc' => array( |
|
'pattern' => '^(MPCK|MP\\+|[\\x00\\x01\\x10\\x11\\x40\\x41\\x50\\x51\\x80\\x81\\x90\\x91\\xC0\\xC1\\xD0\\xD1][\\x20-\\x37][\\x00\\x20\\x40\\x60\\x80\\xA0\\xC0\\xE0])', |
|
'group' => 'audio', |
|
'module' => 'mpc', |
|
'mime_type' => 'audio/x-musepack', |
|
), |
|
|
|
// MP3 - audio - MPEG-audio Layer 3 (very similar to AAC-ADTS) |
|
'mp3' => array( |
|
'pattern' => '^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\x0B\\x10-\\x1B\\x20-\\x2B\\x30-\\x3B\\x40-\\x4B\\x50-\\x5B\\x60-\\x6B\\x70-\\x7B\\x80-\\x8B\\x90-\\x9B\\xA0-\\xAB\\xB0-\\xBB\\xC0-\\xCB\\xD0-\\xDB\\xE0-\\xEB\\xF0-\\xFB]', |
|
'group' => 'audio', |
|
'module' => 'mp3', |
|
'mime_type' => 'audio/mpeg', |
|
), |
|
|
|
// OFR - audio - OptimFROG |
|
'ofr' => array( |
|
'pattern' => '^(\\*RIFF|OFR)', |
|
'group' => 'audio', |
|
'module' => 'optimfrog', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// RKAU - audio - RKive AUdio compressor |
|
'rkau' => array( |
|
'pattern' => '^RKA', |
|
'group' => 'audio', |
|
'module' => 'rkau', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// SHN - audio - Shorten |
|
'shn' => array( |
|
'pattern' => '^ajkg', |
|
'group' => 'audio', |
|
'module' => 'shorten', |
|
'mime_type' => 'audio/xmms-shn', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// TTA - audio - TTA Lossless Audio Compressor (http://tta.corecodec.org) |
|
'tta' => array( |
|
'pattern' => '^TTA', // could also be '^TTA(\\x01|\\x02|\\x03|2|1)' |
|
'group' => 'audio', |
|
'module' => 'tta', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// VOC - audio - Creative Voice (VOC) |
|
'voc' => array( |
|
'pattern' => '^Creative Voice File', |
|
'group' => 'audio', |
|
'module' => 'voc', |
|
'mime_type' => 'audio/voc', |
|
), |
|
|
|
// VQF - audio - transform-domain weighted interleave Vector Quantization Format (VQF) |
|
'vqf' => array( |
|
'pattern' => '^TWIN', |
|
'group' => 'audio', |
|
'module' => 'vqf', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// WV - audio - WavPack (v4.0+) |
|
'wv' => array( |
|
'pattern' => '^wvpk', |
|
'group' => 'audio', |
|
'module' => 'wavpack', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
|
|
// Audio-Video formats |
|
|
|
// ASF - audio/video - Advanced Streaming Format, Windows Media Video, Windows Media Audio |
|
'asf' => array( |
|
'pattern' => '^\\x30\\x26\\xB2\\x75\\x8E\\x66\\xCF\\x11\\xA6\\xD9\\x00\\xAA\\x00\\x62\\xCE\\x6C', |
|
'group' => 'audio-video', |
|
'module' => 'asf', |
|
'mime_type' => 'video/x-ms-asf', |
|
'iconv_req' => false, |
|
), |
|
|
|
// BINK - audio/video - Bink / Smacker |
|
'bink' => array( |
|
'pattern' => '^(BIK|SMK)', |
|
'group' => 'audio-video', |
|
'module' => 'bink', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// FLV - audio/video - FLash Video |
|
'flv' => array( |
|
'pattern' => '^FLV[\\x01]', |
|
'group' => 'audio-video', |
|
'module' => 'flv', |
|
'mime_type' => 'video/x-flv', |
|
), |
|
|
|
// MKAV - audio/video - Mastroka |
|
'matroska' => array( |
|
'pattern' => '^\\x1A\\x45\\xDF\\xA3', |
|
'group' => 'audio-video', |
|
'module' => 'matroska', |
|
'mime_type' => 'video/x-matroska', // may also be audio/x-matroska |
|
), |
|
|
|
// MPEG - audio/video - MPEG (Moving Pictures Experts Group) |
|
'mpeg' => array( |
|
'pattern' => '^\\x00\\x00\\x01[\\xB3\\xBA]', |
|
'group' => 'audio-video', |
|
'module' => 'mpeg', |
|
'mime_type' => 'video/mpeg', |
|
), |
|
|
|
// NSV - audio/video - Nullsoft Streaming Video (NSV) |
|
'nsv' => array( |
|
'pattern' => '^NSV[sf]', |
|
'group' => 'audio-video', |
|
'module' => 'nsv', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
// Ogg - audio/video - Ogg (Ogg-Vorbis, Ogg-FLAC, Speex, Ogg-Theora(*), Ogg-Tarkin(*)) |
|
'ogg' => array( |
|
'pattern' => '^OggS', |
|
'group' => 'audio', |
|
'module' => 'ogg', |
|
'mime_type' => 'application/ogg', |
|
'fail_id3' => 'WARNING', |
|
'fail_ape' => 'WARNING', |
|
), |
|
|
|
// QT - audio/video - Quicktime |
|
'quicktime' => array( |
|
'pattern' => '^.{4}(cmov|free|ftyp|mdat|moov|pnot|skip|wide)', |
|
'group' => 'audio-video', |
|
'module' => 'quicktime', |
|
'mime_type' => 'video/quicktime', |
|
), |
|
|
|
// RIFF - audio/video - Resource Interchange File Format (RIFF) / WAV / AVI / CD-audio / SDSS = renamed variant used by SmartSound QuickTracks (www.smartsound.com) / FORM = Audio Interchange File Format (AIFF) |
|
'riff' => array( |
|
'pattern' => '^(RIFF|SDSS|FORM)', |
|
'group' => 'audio-video', |
|
'module' => 'riff', |
|
'mime_type' => 'audio/x-wav', |
|
'fail_ape' => 'WARNING', |
|
), |
|
|
|
// Real - audio/video - RealAudio, RealVideo |
|
'real' => array( |
|
'pattern' => '^\\.(RMF|ra)', |
|
'group' => 'audio-video', |
|
'module' => 'real', |
|
'mime_type' => 'audio/x-realaudio', |
|
), |
|
|
|
// SWF - audio/video - ShockWave Flash |
|
'swf' => array( |
|
'pattern' => '^(F|C)WS', |
|
'group' => 'audio-video', |
|
'module' => 'swf', |
|
'mime_type' => 'application/x-shockwave-flash', |
|
), |
|
|
|
// TS - audio/video - MPEG-2 Transport Stream |
|
'ts' => array( |
|
'pattern' => '^(\\x47.{187}){10,}', // packets are 188 bytes long and start with 0x47 "G". Check for at least 10 packets matching this pattern |
|
'group' => 'audio-video', |
|
'module' => 'ts', |
|
'mime_type' => 'video/MP2T', |
|
), |
|
|
|
|
|
// Still-Image formats |
|
|
|
// BMP - still image - Bitmap (Windows, OS/2; uncompressed, RLE8, RLE4) |
|
'bmp' => array( |
|
'pattern' => '^BM', |
|
'group' => 'graphic', |
|
'module' => 'bmp', |
|
'mime_type' => 'image/bmp', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// GIF - still image - Graphics Interchange Format |
|
'gif' => array( |
|
'pattern' => '^GIF', |
|
'group' => 'graphic', |
|
'module' => 'gif', |
|
'mime_type' => 'image/gif', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// JPEG - still image - Joint Photographic Experts Group (JPEG) |
|
'jpg' => array( |
|
'pattern' => '^\\xFF\\xD8\\xFF', |
|
'group' => 'graphic', |
|
'module' => 'jpg', |
|
'mime_type' => 'image/jpeg', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// PCD - still image - Kodak Photo CD |
|
'pcd' => array( |
|
'pattern' => '^.{2048}PCD_IPI\\x00', |
|
'group' => 'graphic', |
|
'module' => 'pcd', |
|
'mime_type' => 'image/x-photo-cd', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
|
|
// PNG - still image - Portable Network Graphics (PNG) |
|
'png' => array( |
|
'pattern' => '^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A', |
|
'group' => 'graphic', |
|
'module' => 'png', |
|
'mime_type' => 'image/png', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
|
|
// SVG - still image - Scalable Vector Graphics (SVG) |
|
'svg' => array( |
|
'pattern' => '(<!DOCTYPE svg PUBLIC |xmlns="http://www\\.w3\\.org/2000/svg")', |
|
'group' => 'graphic', |
|
'module' => 'svg', |
|
'mime_type' => 'image/svg+xml', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
|
|
// TIFF - still image - Tagged Information File Format (TIFF) |
|
'tiff' => array( |
|
'pattern' => '^(II\\x2A\\x00|MM\\x00\\x2A)', |
|
'group' => 'graphic', |
|
'module' => 'tiff', |
|
'mime_type' => 'image/tiff', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
|
|
// EFAX - still image - eFax (TIFF derivative) |
|
'efax' => array( |
|
'pattern' => '^\\xDC\\xFE', |
|
'group' => 'graphic', |
|
'module' => 'efax', |
|
'mime_type' => 'image/efax', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
|
|
// Data formats |
|
|
|
// ISO - data - International Standards Organization (ISO) CD-ROM Image |
|
'iso' => array( |
|
'pattern' => '^.{32769}CD001', |
|
'group' => 'misc', |
|
'module' => 'iso', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
'iconv_req' => false, |
|
), |
|
|
|
// RAR - data - RAR compressed data |
|
'rar' => array( |
|
'pattern' => '^Rar\\!', |
|
'group' => 'archive', |
|
'module' => 'rar', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// SZIP - audio/data - SZIP compressed data |
|
'szip' => array( |
|
'pattern' => '^SZ\\x0A\\x04', |
|
'group' => 'archive', |
|
'module' => 'szip', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// TAR - data - TAR compressed data |
|
'tar' => array( |
|
'pattern' => '^.{100}[0-9\\x20]{7}\\x00[0-9\\x20]{7}\\x00[0-9\\x20]{7}\\x00[0-9\\x20\\x00]{12}[0-9\\x20\\x00]{12}', |
|
'group' => 'archive', |
|
'module' => 'tar', |
|
'mime_type' => 'application/x-tar', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// GZIP - data - GZIP compressed data |
|
'gz' => array( |
|
'pattern' => '^\\x1F\\x8B\\x08', |
|
'group' => 'archive', |
|
'module' => 'gzip', |
|
'mime_type' => 'application/x-gzip', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// ZIP - data - ZIP compressed data |
|
'zip' => array( |
|
'pattern' => '^PK\\x03\\x04', |
|
'group' => 'archive', |
|
'module' => 'zip', |
|
'mime_type' => 'application/zip', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
|
|
// Misc other formats |
|
|
|
// PAR2 - data - Parity Volume Set Specification 2.0 |
|
'par2' => array ( |
|
'pattern' => '^PAR2\\x00PKT', |
|
'group' => 'misc', |
|
'module' => 'par2', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// PDF - data - Portable Document Format |
|
'pdf' => array( |
|
'pattern' => '^\\x25PDF', |
|
'group' => 'misc', |
|
'module' => 'pdf', |
|
'mime_type' => 'application/pdf', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// MSOFFICE - data - ZIP compressed data |
|
'msoffice' => array( |
|
'pattern' => '^\\xD0\\xCF\\x11\\xE0\\xA1\\xB1\\x1A\\xE1', // D0CF11E == DOCFILE == Microsoft Office Document |
|
'group' => 'misc', |
|
'module' => 'msoffice', |
|
'mime_type' => 'application/octet-stream', |
|
'fail_id3' => 'ERROR', |
|
'fail_ape' => 'ERROR', |
|
), |
|
|
|
// CUE - data - CUEsheet (index to single-file disc images) |
|
'cue' => array( |
|
'pattern' => '', // empty pattern means cannot be automatically detected, will fall through all other formats and match based on filename and very basic file contents |
|
'group' => 'misc', |
|
'module' => 'cue', |
|
'mime_type' => 'application/octet-stream', |
|
), |
|
|
|
); |
|
} |
|
|
|
return $format_info; |
|
} |
|
|
|
|
|
|
|
public function GetFileFormat(&$filedata, $filename='') { |
|
// this function will determine the format of a file based on usually |
|
// the first 2-4 bytes of the file (8 bytes for PNG, 16 bytes for JPG, |
|
// and in the case of ISO CD image, 6 bytes offset 32kb from the start |
|
// of the file). |
|
|
|
// Identify file format - loop through $format_info and detect with reg expr |
|
foreach ($this->GetFileFormatArray() as $format_name => $info) { |
|
// The /s switch on preg_match() forces preg_match() NOT to treat |
|
// newline (0x0A) characters as special chars but do a binary match |
|
if (!empty($info['pattern']) && preg_match('#'.$info['pattern'].'#s', $filedata)) { |
|
$info['include'] = 'module.'.$info['group'].'.'.$info['module'].'.php'; |
|
return $info; |
|
} |
|
} |
|
|
|
|
|
if (preg_match('#\\.mp[123a]$#i', $filename)) { |
|
// Too many mp3 encoders on the market put gabage in front of mpeg files |
|
// use assume format on these if format detection failed |
|
$GetFileFormatArray = $this->GetFileFormatArray(); |
|
$info = $GetFileFormatArray['mp3']; |
|
$info['include'] = 'module.'.$info['group'].'.'.$info['module'].'.php'; |
|
return $info; |
|
} elseif (preg_match('#\\.cue$#i', $filename) && preg_match('#FILE "[^"]+" (BINARY|MOTOROLA|AIFF|WAVE|MP3)#', $filedata)) { |
|
// there's not really a useful consistent "magic" at the beginning of .cue files to identify them |
|
// so until I think of something better, just go by filename if all other format checks fail |
|
// and verify there's at least one instance of "TRACK xx AUDIO" in the file |
|
$GetFileFormatArray = $this->GetFileFormatArray(); |
|
$info = $GetFileFormatArray['cue']; |
|
$info['include'] = 'module.'.$info['group'].'.'.$info['module'].'.php'; |
|
return $info; |
|
} |
|
|
|
return false; |
|
} |
|
|
|
|
|
// converts array to $encoding charset from $this->encoding |
|
public function CharConvert(&$array, $encoding) { |
|
|
|
// identical encoding - end here |
|
if ($encoding == $this->encoding) { |
|
return; |
|
} |
|
|
|
// loop thru array |
|
foreach ($array as $key => $value) { |
|
|
|
// go recursive |
|
if (is_array($value)) { |
|
$this->CharConvert($array[$key], $encoding); |
|
} |
|
|
|
// convert string |
|
elseif (is_string($value)) { |
|
$array[$key] = trim(getid3_lib::iconv_fallback($encoding, $this->encoding, $value)); |
|
} |
|
} |
|
} |
|
|
|
|
|
public function HandleAllTags() { |
|
|
|
// key name => array (tag name, character encoding) |
|
static $tags; |
|
if (empty($tags)) { |
|
$tags = array( |
|
'asf' => array('asf' , 'UTF-16LE'), |
|
'midi' => array('midi' , 'ISO-8859-1'), |
|
'nsv' => array('nsv' , 'ISO-8859-1'), |
|
'ogg' => array('vorbiscomment' , 'UTF-8'), |
|
'png' => array('png' , 'UTF-8'), |
|
'tiff' => array('tiff' , 'ISO-8859-1'), |
|
'quicktime' => array('quicktime' , 'UTF-8'), |
|
'real' => array('real' , 'ISO-8859-1'), |
|
'vqf' => array('vqf' , 'ISO-8859-1'), |
|
'zip' => array('zip' , 'ISO-8859-1'), |
|
'riff' => array('riff' , 'ISO-8859-1'), |
|
'lyrics3' => array('lyrics3' , 'ISO-8859-1'), |
|
'id3v1' => array('id3v1' , $this->encoding_id3v1), |
|
'id3v2' => array('id3v2' , 'UTF-8'), // not according to the specs (every frame can have a different encoding), but getID3() force-converts all encodings to UTF-8 |
|
'ape' => array('ape' , 'UTF-8'), |
|
'cue' => array('cue' , 'ISO-8859-1'), |
|
'matroska' => array('matroska' , 'UTF-8'), |
|
'flac' => array('vorbiscomment' , 'UTF-8'), |
|
'divxtag' => array('divx' , 'ISO-8859-1'), |
|
'iptc' => array('iptc' , 'ISO-8859-1'), |
|
); |
|
} |
|
|
|
// loop through comments array |
|
foreach ($tags as $comment_name => $tagname_encoding_array) { |
|
list($tag_name, $encoding) = $tagname_encoding_array; |
|
|
|
// fill in default encoding type if not already present |
|
if (isset($this->info[$comment_name]) && !isset($this->info[$comment_name]['encoding'])) { |
|
$this->info[$comment_name]['encoding'] = $encoding; |
|
} |
|
|
|
// copy comments if key name set |
|
if (!empty($this->info[$comment_name]['comments'])) { |
|
foreach ($this->info[$comment_name]['comments'] as $tag_key => $valuearray) { |
|
foreach ($valuearray as $key => $value) { |
|
if (is_string($value)) { |
|
$value = trim($value, " \r\n\t"); // do not trim nulls from $value!! Unicode characters will get mangled if trailing nulls are removed! |
|
} |
|
if ($value) { |
|
if (!is_numeric($key)) { |
|
$this->info['tags'][trim($tag_name)][trim($tag_key)][$key] = $value; |
|
} else { |
|
$this->info['tags'][trim($tag_name)][trim($tag_key)][] = $value; |
|
} |
|
} |
|
} |
|
if ($tag_key == 'picture') { |
|
unset($this->info[$comment_name]['comments'][$tag_key]); |
|
} |
|
} |
|
|
|
if (!isset($this->info['tags'][$tag_name])) { |
|
// comments are set but contain nothing but empty strings, so skip |
|
continue; |
|
} |
|
|
|
$this->CharConvert($this->info['tags'][$tag_name], $this->info[$comment_name]['encoding']); // only copy gets converted! |
|
|
|
if ($this->option_tags_html) { |
|
foreach ($this->info['tags'][$tag_name] as $tag_key => $valuearray) { |
|
$this->info['tags_html'][$tag_name][$tag_key] = getid3_lib::recursiveMultiByteCharString2HTML($valuearray, $this->info[$comment_name]['encoding']); |
|
} |
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
// pictures can take up a lot of space, and we don't need multiple copies of them |
|
// let there be a single copy in [comments][picture], and not elsewhere |
|
if (!empty($this->info['tags'])) { |
|
$unset_keys = array('tags', 'tags_html'); |
|
foreach ($this->info['tags'] as $tagtype => $tagarray) { |
|
foreach ($tagarray as $tagname => $tagdata) { |
|
if ($tagname == 'picture') { |
|
foreach ($tagdata as $key => $tagarray) { |
|
$this->info['comments']['picture'][] = $tagarray; |
|
if (isset($tagarray['data']) && isset($tagarray['image_mime'])) { |
|
if (isset($this->info['tags'][$tagtype][$tagname][$key])) { |
|
unset($this->info['tags'][$tagtype][$tagname][$key]); |
|
} |
|
if (isset($this->info['tags_html'][$tagtype][$tagname][$key])) { |
|
unset($this->info['tags_html'][$tagtype][$tagname][$key]); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
foreach ($unset_keys as $unset_key) { |
|
// remove possible empty keys from (e.g. [tags][id3v2][picture]) |
|
if (empty($this->info[$unset_key][$tagtype]['picture'])) { |
|
unset($this->info[$unset_key][$tagtype]['picture']); |
|
} |
|
if (empty($this->info[$unset_key][$tagtype])) { |
|
unset($this->info[$unset_key][$tagtype]); |
|
} |
|
if (empty($this->info[$unset_key])) { |
|
unset($this->info[$unset_key]); |
|
} |
|
} |
|
// remove duplicate copy of picture data from (e.g. [id3v2][comments][picture]) |
|
if (isset($this->info[$tagtype]['comments']['picture'])) { |
|
unset($this->info[$tagtype]['comments']['picture']); |
|
} |
|
if (empty($this->info[$tagtype]['comments'])) { |
|
unset($this->info[$tagtype]['comments']); |
|
} |
|
if (empty($this->info[$tagtype])) { |
|
unset($this->info[$tagtype]); |
|
} |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
public function getHashdata($algorithm) { |
|
switch ($algorithm) { |
|
case 'md5': |
|
case 'sha1': |
|
break; |
|
|
|
default: |
|
return $this->error('bad algorithm "'.$algorithm.'" in getHashdata()'); |
|
break; |
|
} |
|
|
|
if (!empty($this->info['fileformat']) && !empty($this->info['dataformat']) && ($this->info['fileformat'] == 'ogg') && ($this->info['audio']['dataformat'] == 'vorbis')) { |
|
|
|
// We cannot get an identical md5_data value for Ogg files where the comments |
|
// span more than 1 Ogg page (compared to the same audio data with smaller |
|
// comments) using the normal getID3() method of MD5'ing the data between the |
|
// end of the comments and the end of the file (minus any trailing tags), |
|
// because the page sequence numbers of the pages that the audio data is on |
|
// do not match. Under normal circumstances, where comments are smaller than |
|
// the nominal 4-8kB page size, then this is not a problem, but if there are |
|
// very large comments, the only way around it is to strip off the comment |
|
// tags with vorbiscomment and MD5 that file. |
|
// This procedure must be applied to ALL Ogg files, not just the ones with |
|
// comments larger than 1 page, because the below method simply MD5's the |
|
// whole file with the comments stripped, not just the portion after the |
|
// comments block (which is the standard getID3() method. |
|
|
|
// The above-mentioned problem of comments spanning multiple pages and changing |
|
// page sequence numbers likely happens for OggSpeex and OggFLAC as well, but |
|
// currently vorbiscomment only works on OggVorbis files. |
|
|
|
if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) { |
|
|
|
$this->warning('Failed making system call to vorbiscomment.exe - '.$algorithm.'_data is incorrect - error returned: PHP running in Safe Mode (backtick operator not available)'); |
|
$this->info[$algorithm.'_data'] = false; |
|
|
|
} else { |
|
|
|
// Prevent user from aborting script |
|
$old_abort = ignore_user_abort(true); |
|
|
|
// Create empty file |
|
$empty = tempnam(GETID3_TEMP_DIR, 'getID3'); |
|
touch($empty); |
|
|
|
// Use vorbiscomment to make temp file without comments |
|
$temp = tempnam(GETID3_TEMP_DIR, 'getID3'); |
|
$file = $this->info['filenamepath']; |
|
|
|
if (GETID3_OS_ISWINDOWS) { |
|
|
|
if (file_exists(GETID3_HELPERAPPSDIR.'vorbiscomment.exe')) { |
|
|
|
$commandline = '"'.GETID3_HELPERAPPSDIR.'vorbiscomment.exe" -w -c "'.$empty.'" "'.$file.'" "'.$temp.'"'; |
|
$VorbisCommentError = `$commandline`; |
|
|
|
} else { |
|
|
|
$VorbisCommentError = 'vorbiscomment.exe not found in '.GETID3_HELPERAPPSDIR; |
|
|
|
} |
|
|
|
} else { |
|
|
|
$commandline = 'vorbiscomment -w -c "'.$empty.'" "'.$file.'" "'.$temp.'" 2>&1'; |
|
$commandline = 'vorbiscomment -w -c '.escapeshellarg($empty).' '.escapeshellarg($file).' '.escapeshellarg($temp).' 2>&1'; |
|
$VorbisCommentError = `$commandline`; |
|
|
|
} |
|
|
|
if (!empty($VorbisCommentError)) { |
|
|
|
$this->warning('Failed making system call to vorbiscomment(.exe) - '.$algorithm.'_data will be incorrect. If vorbiscomment is unavailable, please download from http://www.vorbis.com/download.psp and put in the getID3() directory. Error returned: '.$VorbisCommentError); |
|
$this->info[$algorithm.'_data'] = false; |
|
|
|
} else { |
|
|
|
// Get hash of newly created file |
|
switch ($algorithm) { |
|
case 'md5': |
|
$this->info[$algorithm.'_data'] = md5_file($temp); |
|
break; |
|
|
|
case 'sha1': |
|
$this->info[$algorithm.'_data'] = sha1_file($temp); |
|
break; |
|
} |
|
} |
|
|
|
// Clean up |
|
unlink($empty); |
|
unlink($temp); |
|
|
|
// Reset abort setting |
|
ignore_user_abort($old_abort); |
|
|
|
} |
|
|
|
} else { |
|
|
|
if (!empty($this->info['avdataoffset']) || (isset($this->info['avdataend']) && ($this->info['avdataend'] < $this->info['filesize']))) { |
|
|
|
// get hash from part of file |
|
$this->info[$algorithm.'_data'] = getid3_lib::hash_data($this->info['filenamepath'], $this->info['avdataoffset'], $this->info['avdataend'], $algorithm); |
|
|
|
} else { |
|
|
|
// get hash from whole file |
|
switch ($algorithm) { |
|
case 'md5': |
|
$this->info[$algorithm.'_data'] = md5_file($this->info['filenamepath']); |
|
break; |
|
|
|
case 'sha1': |
|
$this->info[$algorithm.'_data'] = sha1_file($this->info['filenamepath']); |
|
break; |
|
} |
|
} |
|
|
|
} |
|
return true; |
|
} |
|
|
|
|
|
public function ChannelsBitratePlaytimeCalculations() { |
|
|
|
// set channelmode on audio |
|
if (!empty($this->info['audio']['channelmode']) || !isset($this->info['audio']['channels'])) { |
|
// ignore |
|
} elseif ($this->info['audio']['channels'] == 1) { |
|
$this->info['audio']['channelmode'] = 'mono'; |
|
} elseif ($this->info['audio']['channels'] == 2) { |
|
$this->info['audio']['channelmode'] = 'stereo'; |
|
} |
|
|
|
// Calculate combined bitrate - audio + video |
|
$CombinedBitrate = 0; |
|
$CombinedBitrate += (isset($this->info['audio']['bitrate']) ? $this->info['audio']['bitrate'] : 0); |
|
$CombinedBitrate += (isset($this->info['video']['bitrate']) ? $this->info['video']['bitrate'] : 0); |
|
if (($CombinedBitrate > 0) && empty($this->info['bitrate'])) { |
|
$this->info['bitrate'] = $CombinedBitrate; |
|
} |
|
//if ((isset($this->info['video']) && !isset($this->info['video']['bitrate'])) || (isset($this->info['audio']) && !isset($this->info['audio']['bitrate']))) { |
|
// // for example, VBR MPEG video files cannot determine video bitrate: |
|
// // should not set overall bitrate and playtime from audio bitrate only |
|
// unset($this->info['bitrate']); |
|
//} |
|
|
|
// video bitrate undetermined, but calculable |
|
if (isset($this->info['video']['dataformat']) && $this->info['video']['dataformat'] && (!isset($this->info['video']['bitrate']) || ($this->info['video']['bitrate'] == 0))) { |
|
// if video bitrate not set |
|
if (isset($this->info['audio']['bitrate']) && ($this->info['audio']['bitrate'] > 0) && ($this->info['audio']['bitrate'] == $this->info['bitrate'])) { |
|
// AND if audio bitrate is set to same as overall bitrate |
|
if (isset($this->info['playtime_seconds']) && ($this->info['playtime_seconds'] > 0)) { |
|
// AND if playtime is set |
|
if (isset($this->info['avdataend']) && isset($this->info['avdataoffset'])) { |
|
// AND if AV data offset start/end is known |
|
// THEN we can calculate the video bitrate |
|
$this->info['bitrate'] = round((($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['playtime_seconds']); |
|
$this->info['video']['bitrate'] = $this->info['bitrate'] - $this->info['audio']['bitrate']; |
|
} |
|
} |
|
} |
|
} |
|
|
|
if ((!isset($this->info['playtime_seconds']) || ($this->info['playtime_seconds'] <= 0)) && !empty($this->info['bitrate'])) { |
|
$this->info['playtime_seconds'] = (($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['bitrate']; |
|
} |
|
|
|
if (!isset($this->info['bitrate']) && !empty($this->info['playtime_seconds'])) { |
|
$this->info['bitrate'] = (($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['playtime_seconds']; |
|
} |
|
if (isset($this->info['bitrate']) && empty($this->info['audio']['bitrate']) && empty($this->info['video']['bitrate'])) { |
|
if (isset($this->info['audio']['dataformat']) && empty($this->info['video']['resolution_x'])) { |
|
// audio only |
|
$this->info['audio']['bitrate'] = $this->info['bitrate']; |
|
} elseif (isset($this->info['video']['resolution_x']) && empty($this->info['audio']['dataformat'])) { |
|
// video only |
|
$this->info['video']['bitrate'] = $this->info['bitrate']; |
|
} |
|
} |
|
|
|
// Set playtime string |
|
if (!empty($this->info['playtime_seconds']) && empty($this->info['playtime_string'])) { |
|
$this->info['playtime_string'] = getid3_lib::PlaytimeString($this->info['playtime_seconds']); |
|
} |
|
} |
|
|
|
|
|
public function CalculateCompressionRatioVideo() { |
|
if (empty($this->info['video'])) { |
|
return false; |
|
} |
|
if (empty($this->info['video']['resolution_x']) || empty($this->info['video']['resolution_y'])) { |
|
return false; |
|
} |
|
if (empty($this->info['video']['bits_per_sample'])) { |
|
return false; |
|
} |
|
|
|
switch ($this->info['video']['dataformat']) { |
|
case 'bmp': |
|
case 'gif': |
|
case 'jpeg': |
|
case 'jpg': |
|
case 'png': |
|
case 'tiff': |
|
$FrameRate = 1; |
|
$PlaytimeSeconds = 1; |
|
$BitrateCompressed = $this->info['filesize'] * 8; |
|
break; |
|
|
|
default: |
|
if (!empty($this->info['video']['frame_rate'])) { |
|
$FrameRate = $this->info['video']['frame_rate']; |
|
} else { |
|
return false; |
|
} |
|
if (!empty($this->info['playtime_seconds'])) { |
|
$PlaytimeSeconds = $this->info['playtime_seconds']; |
|
} else { |
|
return false; |
|
} |
|
if (!empty($this->info['video']['bitrate'])) { |
|
$BitrateCompressed = $this->info['video']['bitrate']; |
|
} else { |
|
return false; |
|
} |
|
break; |
|
} |
|
$BitrateUncompressed = $this->info['video']['resolution_x'] * $this->info['video']['resolution_y'] * $this->info['video']['bits_per_sample'] * $FrameRate; |
|
|
|
$this->info['video']['compression_ratio'] = $BitrateCompressed / $BitrateUncompressed; |
|
return true; |
|
} |
|
|
|
|
|
public function CalculateCompressionRatioAudio() { |
|
if (empty($this->info['audio']['bitrate']) || empty($this->info['audio']['channels']) || empty($this->info['audio']['sample_rate']) || !is_numeric($this->info['audio']['sample_rate'])) { |
|
return false; |
|
} |
|
$this->info['audio']['compression_ratio'] = $this->info['audio']['bitrate'] / ($this->info['audio']['channels'] * $this->info['audio']['sample_rate'] * (!empty($this->info['audio']['bits_per_sample']) ? $this->info['audio']['bits_per_sample'] : 16)); |
|
|
|
if (!empty($this->info['audio']['streams'])) { |
|
foreach ($this->info['audio']['streams'] as $streamnumber => $streamdata) { |
|
if (!empty($streamdata['bitrate']) && !empty($streamdata['channels']) && !empty($streamdata['sample_rate'])) { |
|
$this->info['audio']['streams'][$streamnumber]['compression_ratio'] = $streamdata['bitrate'] / ($streamdata['channels'] * $streamdata['sample_rate'] * (!empty($streamdata['bits_per_sample']) ? $streamdata['bits_per_sample'] : 16)); |
|
} |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
|
|
public function CalculateReplayGain() { |
|
if (isset($this->info['replay_gain'])) { |
|
if (!isset($this->info['replay_gain']['reference_volume'])) { |
|
$this->info['replay_gain']['reference_volume'] = (double) 89.0; |
|
} |
|
if (isset($this->info['replay_gain']['track']['adjustment'])) { |
|
$this->info['replay_gain']['track']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['track']['adjustment']; |
|
} |
|
if (isset($this->info['replay_gain']['album']['adjustment'])) { |
|
$this->info['replay_gain']['album']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['album']['adjustment']; |
|
} |
|
|
|
if (isset($this->info['replay_gain']['track']['peak'])) { |
|
$this->info['replay_gain']['track']['max_noclip_gain'] = 0 - getid3_lib::RGADamplitude2dB($this->info['replay_gain']['track']['peak']); |
|
} |
|
if (isset($this->info['replay_gain']['album']['peak'])) { |
|
$this->info['replay_gain']['album']['max_noclip_gain'] = 0 - getid3_lib::RGADamplitude2dB($this->info['replay_gain']['album']['peak']); |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
public function ProcessAudioStreams() { |
|
if (!empty($this->info['audio']['bitrate']) || !empty($this->info['audio']['channels']) || !empty($this->info['audio']['sample_rate'])) { |
|
if (!isset($this->info['audio']['streams'])) { |
|
foreach ($this->info['audio'] as $key => $value) { |
|
if ($key != 'streams') { |
|
$this->info['audio']['streams'][0][$key] = $value; |
|
} |
|
} |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
public function getid3_tempnam() { |
|
return tempnam($this->tempdir, 'gI3'); |
|
} |
|
|
|
public function include_module($name) { |
|
//if (!file_exists($this->include_path.'module.'.$name.'.php')) { |
|
if (!file_exists(GETID3_INCLUDEPATH.'module.'.$name.'.php')) { |
|
throw new getid3_exception('Required module.'.$name.'.php is missing.'); |
|
} |
|
include_once(GETID3_INCLUDEPATH.'module.'.$name.'.php'); |
|
return true; |
|
} |
|
|
|
public static function is_writable ($filename) { |
|
$ret = is_writable($filename); |
|
|
|
if (!$ret) { |
|
$perms = fileperms($filename); |
|
$ret = ($perms & 0x0080) || ($perms & 0x0010) || ($perms & 0x0002); |
|
} |
|
|
|
return $ret; |
|
} |
|
|
|
} |
|
|
|
|
|
abstract class getid3_handler { |
|
|
|
/** |
|
* @var getID3 |
|
*/ |
|
protected $getid3; // pointer |
|
|
|
protected $data_string_flag = false; // analyzing filepointer or string |
|
protected $data_string = ''; // string to analyze |
|
protected $data_string_position = 0; // seek position in string |
|
protected $data_string_length = 0; // string length |
|
|
|
private $dependency_to = null; |
|
|
|
|
|
public function __construct(getID3 $getid3, $call_module=null) { |
|
$this->getid3 = $getid3; |
|
|
|
if ($call_module) { |
|
$this->dependency_to = str_replace('getid3_', '', $call_module); |
|
} |
|
} |
|
|
|
|
|
// Analyze from file pointer |
|
abstract public function Analyze(); |
|
|
|
|
|
// Analyze from string instead |
|
public function AnalyzeString($string) { |
|
// Enter string mode |
|
$this->setStringMode($string); |
|
|
|
// Save info |
|
$saved_avdataoffset = $this->getid3->info['avdataoffset']; |
|
$saved_avdataend = $this->getid3->info['avdataend']; |
|
$saved_filesize = (isset($this->getid3->info['filesize']) ? $this->getid3->info['filesize'] : null); // may be not set if called as dependency without openfile() call |
|
|
|
// Reset some info |
|
$this->getid3->info['avdataoffset'] = 0; |
|
$this->getid3->info['avdataend'] = $this->getid3->info['filesize'] = $this->data_string_length; |
|
|
|
// Analyze |
|
$this->Analyze(); |
|
|
|
// Restore some info |
|
$this->getid3->info['avdataoffset'] = $saved_avdataoffset; |
|
$this->getid3->info['avdataend'] = $saved_avdataend; |
|
$this->getid3->info['filesize'] = $saved_filesize; |
|
|
|
// Exit string mode |
|
$this->data_string_flag = false; |
|
} |
|
|
|
public function setStringMode($string) { |
|
$this->data_string_flag = true; |
|
$this->data_string = $string; |
|
$this->data_string_length = strlen($string); |
|
} |
|
|
|
protected function ftell() { |
|
if ($this->data_string_flag) { |
|
return $this->data_string_position; |
|
} |
|
return ftell($this->getid3->fp); |
|
} |
|
|
|
protected function fread($bytes) { |
|
if ($this->data_string_flag) { |
|
$this->data_string_position += $bytes; |
|
return substr($this->data_string, $this->data_string_position - $bytes, $bytes); |
|
} |
|
$pos = $this->ftell() + $bytes; |
|
if (!getid3_lib::intValueSupported($pos)) { |
|
throw new getid3_exception('cannot fread('.$bytes.' from '.$this->ftell().') because beyond PHP filesystem limit', 10); |
|
} |
|
|
|
//return fread($this->getid3->fp, $bytes); |
|
/* |
|
* http://www.getid3.org/phpBB3/viewtopic.php?t=1930 |
|
* "I found out that the root cause for the problem was how getID3 uses the PHP system function fread(). |
|
* It seems to assume that fread() would always return as many bytes as were requested. |
|
* However, according the PHP manual (http://php.net/manual/en/function.fread.php), this is the case only with regular local files, but not e.g. with Linux pipes. |
|
* The call may return only part of the requested data and a new call is needed to get more." |
|
*/ |
|
$contents = ''; |
|
do { |
|
$part = fread($this->getid3->fp, $bytes); |
|
$partLength = strlen($part); |
|
$bytes -= $partLength; |
|
$contents .= $part; |
|
} while (($bytes > 0) && ($partLength > 0)); |
|
return $contents; |
|
} |
|
|
|
protected function fseek($bytes, $whence=SEEK_SET) { |
|
if ($this->data_string_flag) { |
|
switch ($whence) { |
|
case SEEK_SET: |
|
$this->data_string_position = $bytes; |
|
break; |
|
|
|
case SEEK_CUR: |
|
$this->data_string_position += $bytes; |
|
break; |
|
|
|
case SEEK_END: |
|
$this->data_string_position = $this->data_string_length + $bytes; |
|
break; |
|
} |
|
return 0; |
|
} else { |
|
$pos = $bytes; |
|
if ($whence == SEEK_CUR) { |
|
$pos = $this->ftell() + $bytes; |
|
} elseif ($whence == SEEK_END) { |
|
$pos = $this->getid3->info['filesize'] + $bytes; |
|
} |
|
if (!getid3_lib::intValueSupported($pos)) { |
|
throw new getid3_exception('cannot fseek('.$pos.') because beyond PHP filesystem limit', 10); |
|
} |
|
} |
|
return fseek($this->getid3->fp, $bytes, $whence); |
|
} |
|
|
|
protected function feof() { |
|
if ($this->data_string_flag) { |
|
return $this->data_string_position >= $this->data_string_length; |
|
} |
|
return feof($this->getid3->fp); |
|
} |
|
|
|
final protected function isDependencyFor($module) { |
|
return $this->dependency_to == $module; |
|
} |
|
|
|
protected function error($text) { |
|
$this->getid3->info['error'][] = $text; |
|
|
|
return false; |
|
} |
|
|
|
protected function warning($text) { |
|
return $this->getid3->warning($text); |
|
} |
|
|
|
protected function notice($text) { |
|
// does nothing for now |
|
} |
|
|
|
public function saveAttachment($name, $offset, $length, $image_mime=null) { |
|
try { |
|
|
|
// do not extract at all |
|
if ($this->getid3->option_save_attachments === getID3::ATTACHMENTS_NONE) { |
|
|
|
$attachment = null; // do not set any |
|
|
|
// extract to return array |
|
} elseif ($this->getid3->option_save_attachments === getID3::ATTACHMENTS_INLINE) { |
|
|
|
$this->fseek($offset); |
|
$attachment = $this->fread($length); // get whole data in one pass, till it is anyway stored in memory |
|
if ($attachment === false || strlen($attachment) != $length) { |
|
throw new Exception('failed to read attachment data'); |
|
} |
|
|
|
// assume directory path is given |
|
} else { |
|
|
|
// set up destination path |
|
$dir = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->getid3->option_save_attachments), DIRECTORY_SEPARATOR); |
|
if (!is_dir($dir) || !getID3::is_writable($dir)) { // check supplied directory |
|
throw new Exception('supplied path ('.$dir.') does not exist, or is not writable'); |
|
} |
|
$dest = $dir.DIRECTORY_SEPARATOR.$name.($image_mime ? '.'.getid3_lib::ImageExtFromMime($image_mime) : ''); |
|
|
|
// create dest file |
|
if (($fp_dest = fopen($dest, 'wb')) == false) { |
|
throw new Exception('failed to create file '.$dest); |
|
} |
|
|
|
// copy data |
|
$this->fseek($offset); |
|
$buffersize = ($this->data_string_flag ? $length : $this->getid3->fread_buffer_size()); |
|
$bytesleft = $length; |
|
while ($bytesleft > 0) { |
|
if (($buffer = $this->fread(min($buffersize, $bytesleft))) === false || ($byteswritten = fwrite($fp_dest, $buffer)) === false || ($byteswritten === 0)) { |
|
throw new Exception($buffer === false ? 'not enough data to read' : 'failed to write to destination file, may be not enough disk space'); |
|
} |
|
$bytesleft -= $byteswritten; |
|
} |
|
|
|
fclose($fp_dest); |
|
$attachment = $dest; |
|
|
|
} |
|
|
|
} catch (Exception $e) { |
|
|
|
// close and remove dest file if created |
|
if (isset($fp_dest) && is_resource($fp_dest)) { |
|
fclose($fp_dest); |
|
unlink($dest); |
|
} |
|
|
|
// do not set any is case of error |
|
$attachment = null; |
|
$this->warning('Failed to extract attachment '.$name.': '.$e->getMessage()); |
|
|
|
} |
|
|
|
// seek to the end of attachment |
|
$this->fseek($offset + $length); |
|
|
|
return $attachment; |
|
} |
|
|
|
} |
|
|
|
|
|
class getid3_exception extends Exception |
|
{ |
|
public $message; |
|
}
|
|
|