Tiny File Manager

Back Back Up Advanced Editor

<?php

if (!defined('GETID3_OS_ISWINDOWS')) {
    define('GETID3_OS_ISWINDOWS', stripos(PHP_OS, 'WIN') === 0);
}
if (!defined('GETID3_INCLUDEPATH')) {
    define('GETID3_INCLUDEPATH', dirname(__FILE__) . DIRECTORY_SEPARATOR);
}
if (!defined('IMG_JPG') && defined('IMAGETYPE_JPEG')) {
    define('IMG_JPG', IMAGETYPE_JPEG);
}
if (!defined('ENT_SUBSTITUTE')) {
    define('ENT_SUBSTITUTE', defined('ENT_IGNORE') ? ENT_IGNORE : 8);
}
$temp_dir = ini_get('upload_tmp_dir');
if ($temp_dir && (!is_dir($temp_dir) || !is_readable($temp_dir))) {
    $temp_dir = '';
}
if (!$temp_dir && function_exists('sys_get_temp_dir')) {
    $temp_dir = sys_get_temp_dir();
}
$temp_dir = @realpath($temp_dir);
$open_basedir = ini_get('open_basedir');
if ($open_basedir) {
    $temp_dir = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $temp_dir);
    $open_basedir = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $open_basedir);
    if (substr($temp_dir, -1, 1) != DIRECTORY_SEPARATOR) {
        $temp_dir .= DIRECTORY_SEPARATOR;
    }
    $found_valid_tempdir = false;
    $open_basedirs = explode(PATH_SEPARATOR, $open_basedir);
    foreach ($open_basedirs as $basedir) {
        if (substr($basedir, -1, 1) != DIRECTORY_SEPARATOR) {
            $basedir .= DIRECTORY_SEPARATOR;
        }
        if (preg_match('#^' . preg_quote($basedir) . '#', $temp_dir)) {
            $found_valid_tempdir = true;
            break;
        }
    }
    if (!$found_valid_tempdir) {
        $temp_dir = '';
    }
    unset($open_basedirs, $found_valid_tempdir, $basedir);
}
if (!$temp_dir) {
    $temp_dir = '*';
}
if (!defined('GETID3_TEMP_DIR')) {
    define('GETID3_TEMP_DIR', $temp_dir);
}
unset($open_basedir, $temp_dir);
class getID3
{
    public $encoding = 'UTF-8';
    public $encoding_id3v1 = 'ISO-8859-1';
    public $encoding_id3v1_autodetect = false;
    public $option_tag_id3v1 = true;
    public $option_tag_id3v2 = true;
    public $option_tag_lyrics3 = true;
    public $option_tag_apetag = true;
    public $option_tags_process = true;
    public $option_tags_html = true;
    public $option_extra_info = true;
    public $option_save_attachments = true;
    public $option_md5_data = false;
    public $option_md5_data_source = false;
    public $option_sha1_data = false;
    public $option_max_2gb_check;
    public $option_fread_buffer_size = 32768;
    public $filename;
    public $fp;
    public $info;
    public $tempdir = GETID3_TEMP_DIR;
    public $memory_limit = 0;
    protected $startup_error = '';
    protected $startup_warning = '';
    const VERSION = '1.9.20-202006061653';
    const FREAD_BUFFER_SIZE = 32768;
    const ATTACHMENTS_NONE = false;
    const ATTACHMENTS_INLINE = true;
    public function __construct()
    {
        $required_php_version = '5.3.0';
        if (version_compare(PHP_VERSION, $required_php_version, '<')) {
            $this->startup_error .= 'getID3() requires PHP v' . $required_php_version . ' or higher - you are running v' . PHP_VERSION . "\n";
            return;
        }
        $memoryLimit = ini_get('memory_limit');
        if (preg_match('#([0-9]+) ?M#i', $memoryLimit, $matches)) {
            $memoryLimit = $matches[1] * 1048576;
        } elseif (preg_match('#([0-9]+) ?G#i', $memoryLimit, $matches)) {
            $memoryLimit = $matches[1] * 1073741824;
        }
        $this->memory_limit = $memoryLimit;
        if ($this->memory_limit <= 0) {
        } elseif ($this->memory_limit <= 4194304) {
            $this->startup_error .= 'PHP has less than 4MB available memory and will very likely run out. Increase memory_limit in php.ini' . "\n";
        } elseif ($this->memory_limit <= 12582912) {
            $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";
        }
        if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
            $this->warning('WARNING: Safe mode is on, shorten support disabled, md5data/sha1data for ogg vorbis disabled, ogg vorbos/flac tag writing disabled.');
        }
        if (($mbstring_func_overload = (int) ini_get('mbstring.func_overload')) && $mbstring_func_overload & 0x2) {
            $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";
        }
        if (version_compare(PHP_VERSION, '7.4.0', '<')) {
            if (function_exists('get_magic_quotes_runtime')) {
                if (get_magic_quotes_runtime()) {
                    $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";
                }
            }
            if (function_exists('get_magic_quotes_gpc')) {
                if (get_magic_quotes_gpc()) {
                    $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";
                }
            }
        }
        if (!(include_once GETID3_INCLUDEPATH . 'getid3.lib.php')) {
            $this->startup_error .= 'getid3.lib.php is missing or corrupt' . "\n";
        }
        if ($this->option_max_2gb_check === null) {
            $this->option_max_2gb_check = PHP_INT_MAX <= 2147483647;
        }
        if (GETID3_OS_ISWINDOWS && !defined('GETID3_HELPERAPPSDIR')) {
            $helperappsdir = GETID3_INCLUDEPATH . '..' . DIRECTORY_SEPARATOR . 'helperapps';
            if (!is_dir($helperappsdir)) {
                $this->startup_warning .= '"' . $helperappsdir . '" cannot be defined as GETID3_HELPERAPPSDIR because it does not exist' . "\n";
            } elseif (strpos(realpath($helperappsdir), ' ') !== false) {
                $DirPieces = explode(DIRECTORY_SEPARATOR, realpath($helperappsdir));
                $path_so_far = array();
                foreach ($DirPieces as $key => $value) {
                    if (strpos($value, ' ') !== false) {
                        if (!empty($path_so_far)) {
                            $commandline = 'dir /x ' . escapeshellarg(implode(DIRECTORY_SEPARATOR, $path_so_far));
                            $dir_listing = `{$commandline}`;
                            $lines = explode("\n", $dir_listing);
                            foreach ($lines as $line) {
                                $line = trim($line);
                                if (preg_match('#^([0-9/]{10}) +([0-9:]{4,5}( [AP]M)?) +(<DIR>|[0-9,]+) +([^ ]{0,11}) +(.+)$#', $line, $matches)) {
                                    list($dummy, $date, $time, $ampm, $filesize, $shortname, $filename) = $matches;
                                    if (strtoupper($filesize) == '<DIR>' && strtolower($filename) == strtolower($value)) {
                                        $value = $shortname;
                                    }
                                }
                            }
                        } else {
                            $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";
                        }
                    }
                    $path_so_far[] = $value;
                }
                $helperappsdir = implode(DIRECTORY_SEPARATOR, $path_so_far);
            }
            define('GETID3_HELPERAPPSDIR', $helperappsdir . DIRECTORY_SEPARATOR);
        }
        if (!empty($this->startup_error)) {
            echo $this->startup_error;
            throw new getid3_exception($this->startup_error);
        }
    }
    public function version()
    {
        return self::VERSION;
    }
    public function fread_buffer_size()
    {
        return $this->option_fread_buffer_size;
    }
    public function setOption($optArray)
    {
        if (!is_array($optArray) || empty($optArray)) {
            return false;
        }
        foreach ($optArray as $opt => $val) {
            if (isset($this->{$opt}) === false) {
                continue;
            }
            $this->{$opt} = $val;
        }
        return true;
    }
    public function openfile($filename, $filesize = null, $fp = null)
    {
        try {
            if (!empty($this->startup_error)) {
                throw new getid3_exception($this->startup_error);
            }
            if (!empty($this->startup_warning)) {
                foreach (explode("\n", $this->startup_warning) as $startup_warning) {
                    $this->warning($startup_warning);
                }
            }
            $this->filename = $filename;
            $this->info = array();
            $this->info['GETID3_VERSION'] = $this->version();
            $this->info['php_memory_limit'] = $this->memory_limit > 0 ? $this->memory_limit : false;
            if (preg_match('#^(ht|f)tp://#', $filename)) {
                throw new getid3_exception('Remote files are not supported - please copy the file locally first');
            }
            $filename = str_replace('/', DIRECTORY_SEPARATOR, $filename);
            if ($fp != null && (get_resource_type($fp) == 'file' || get_resource_type($fp) == 'stream')) {
                $this->fp = $fp;
            } elseif ((is_readable($filename) || file_exists($filename)) && is_file($filename) && ($this->fp = fopen($filename, 'rb'))) {
            } else {
                $errormessagelist = array();
                if (!is_readable($filename)) {
                    $errormessagelist[] = '!is_readable';
                }
                if (!is_file($filename)) {
                    $errormessagelist[] = '!is_file';
                }
                if (!file_exists($filename)) {
                    $errormessagelist[] = '!file_exists';
                }
                if (empty($errormessagelist)) {
                    $errormessagelist[] = 'fopen failed';
                }
                throw new getid3_exception('Could not open "' . $filename . '" (' . implode('; ', $errormessagelist) . ')');
            }
            $this->info['filesize'] = !is_null($filesize) ? $filesize : filesize($filename);
            $filename = str_replace('\\', '/', $filename);
            $this->info['filepath'] = str_replace('\\', '/', realpath(dirname($filename)));
            $this->info['filename'] = getid3_lib::mb_basename($filename);
            $this->info['filenamepath'] = $this->info['filepath'] . '/' . $this->info['filename'];
            $this->info['avdataoffset'] = 0;
            $this->info['avdataend'] = $this->info['filesize'];
            $this->info['fileformat'] = '';
            $this->info['audio']['dataformat'] = '';
            $this->info['video']['dataformat'] = '';
            $this->info['tags'] = array();
            $this->info['error'] = array();
            $this->info['warning'] = array();
            $this->info['comments'] = array();
            $this->info['encoding'] = $this->encoding;
            if ($this->option_max_2gb_check) {
                $fseek = fseek($this->fp, 0, SEEK_END);
                if ($fseek < 0 || $this->info['filesize'] != 0 && ftell($this->fp) == 0 || $this->info['filesize'] < 0 || ftell($this->fp) < 0) {
                    $real_filesize = getid3_lib::getFileSizeSyscall($this->info['filenamepath']);
                    if ($real_filesize === false) {
                        unset($this->info['filesize']);
                        fclose($this->fp);
                        throw new getid3_exception('Unable to determine actual filesize. File is most likely larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB and is not supported by PHP.');
                    } elseif (getid3_lib::intValueSupported($real_filesize)) {
                        unset($this->info['filesize']);
                        fclose($this->fp);
                        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 / 1073741824, 3) . 'GB, please report to info@getid3.org');
                    }
                    $this->info['filesize'] = $real_filesize;
                    $this->warning('File is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB (filesystem reports it as ' . number_format($real_filesize / 1073741824, 3) . 'GB) and is not properly supported by PHP.');
                }
            }
            return true;
        } catch (Exception $e) {
            $this->error($e->getMessage());
        }
        return false;
    }
    public function analyze($filename, $filesize = null, $original_filename = '', $fp = null)
    {
        try {
            if (!$this->openfile($filename, $filesize, $fp)) {
                return $this->info;
            }
            foreach (array('id3v2' => 'id3v2', 'id3v1' => 'id3v1', 'apetag' => 'ape', 'lyrics3' => 'lyrics3') as $tag_name => $tag_key) {
                $option_tag = 'option_tag_' . $tag_name;
                if ($this->{$option_tag}) {
                    $this->include_module('tag.' . $tag_name);
                    try {
                        $tag_class = 'getid3_' . $tag_name;
                        $tag = new $tag_class($this);
                        $tag->Analyze();
                    } catch (getid3_exception $e) {
                        throw $e;
                    }
                }
            }
            if (isset($this->info['id3v2']['tag_offset_start'])) {
                $this->info['avdataoffset'] = max($this->info['avdataoffset'], $this->info['id3v2']['tag_offset_end']);
            }
            foreach (array('id3v1' => 'id3v1', 'apetag' => 'ape', 'lyrics3' => 'lyrics3') as $tag_name => $tag_key) {
                if (isset($this->info[$tag_key]['tag_offset_start'])) {
                    $this->info['avdataend'] = min($this->info['avdataend'], $this->info[$tag_key]['tag_offset_start']);
                }
            }
            if (!$this->option_tag_id3v2) {
                fseek($this->fp, 0);
                $header = fread($this->fp, 10);
                if (substr($header, 0, 3) == 'ID3' && strlen($header) == 10) {
                    $this->info['id3v2']['header'] = true;
                    $this->info['id3v2']['majorversion'] = ord($header[3]);
                    $this->info['id3v2']['minorversion'] = ord($header[4]);
                    $this->info['avdataoffset'] += getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10;
                }
            }
            fseek($this->fp, $this->info['avdataoffset']);
            $formattest = fread($this->fp, 32774);
            $determined_format = $this->GetFileFormat($formattest, $original_filename ? $original_filename : $filename);
            if (!$determined_format) {
                fclose($this->fp);
                return $this->error('unable to determine file format');
            }
            if (isset($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') {
                    $this->warning('ID3 tags not allowed on this file type.');
                }
            }
            if (isset($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.');
                }
            }
            $this->info['mime_type'] = $determined_format['mime_type'];
            if (!file_exists(GETID3_INCLUDEPATH . $determined_format['include'])) {
                fclose($this->fp);
                return $this->error('Format not supported, module "' . $determined_format['include'] . '" was removed.');
            }
            if (!empty($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_once GETID3_INCLUDEPATH . $determined_format['include'];
            $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);
            fclose($this->fp);
            if ($this->option_tags_process) {
                $this->HandleAllTags();
            }
            if ($this->option_extra_info) {
                $this->ChannelsBitratePlaytimeCalculations();
                $this->CalculateCompressionRatioVideo();
                $this->CalculateCompressionRatioAudio();
                $this->CalculateReplayGain();
                $this->ProcessAudioStreams();
            }
            if ($this->option_md5_data) {
                if (!$this->option_md5_data_source || empty($this->info['md5_data_source'])) {
                    $this->getHashdata('md5');
                }
            }
            if ($this->option_sha1_data) {
                $this->getHashdata('sha1');
            }
            $this->CleanUp();
        } catch (Exception $e) {
            $this->error('Caught exception: ' . $e->getMessage());
        }
        return $this->info;
    }
    public function error($message)
    {
        $this->CleanUp();
        if (!isset($this->info['error'])) {
            $this->info['error'] = array();
        }
        $this->info['error'][] = $message;
        return $this->info;
    }
    public function warning($message)
    {
        $this->info['warning'][] = $message;
        return true;
    }
    private function CleanUp()
    {
        $AVpossibleEmptyKeys = array('dataformat', 'bits_per_sample', 'encoder_options', 'streams', 'bitrate');
        foreach ($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'][$key]);
            }
        }
        if (!empty($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]);
                }
            }
        }
        if (empty($this->info['fileformat'])) {
            if (isset($this->info['avdataoffset'])) {
                unset($this->info['avdataoffset']);
            }
            if (isset($this->info['avdataend'])) {
                unset($this->info['avdataend']);
            }
        }
        if (!empty($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']));
        }
        unset($this->info['php_memory_limit']);
        return true;
    }
    public function GetFileFormatArray()
    {
        static $format_info = array();
        if (empty($format_info)) {
            $format_info = array('ac3' => array('pattern' => '^\\x0B\\x77', 'group' => 'audio', 'module' => 'ac3', 'mime_type' => 'audio/ac3'), 'adif' => array('pattern' => '^ADIF', 'group' => 'audio', 'module' => 'aac', 'mime_type' => 'audio/aac', 'fail_ape' => 'WARNING'), 'adts' => array('pattern' => '^\\xFF[\\xF0-\\xF1\\xF8-\\xF9]', 'group' => 'audio', 'module' => 'aac', 'mime_type' => 'audio/aac', 'fail_ape' => 'WARNING'), 'au' => array('pattern' => '^\\.snd', 'group' => 'audio', 'module' => 'au', 'mime_type' => 'audio/basic'), 'amr' => array('pattern' => '^\\x23\\x21AMR\\x0A', 'group' => 'audio', 'module' => 'amr', 'mime_type' => 'audio/amr'), 'avr' => array('pattern' => '^2BIT', 'group' => 'audio', 'module' => 'avr', 'mime_type' => 'application/octet-stream'), 'bonk' => array('pattern' => '^\\x00(BONK|INFO|META| ID3)', 'group' => 'audio', 'module' => 'bonk', 'mime_type' => 'audio/xmms-bonk'), 'dsf' => array('pattern' => '^DSD ', 'group' => 'audio', 'module' => 'dsf', 'mime_type' => 'audio/dsd'), 'dss' => array('pattern' => '^[\\x02-\\x08]ds[s2]', 'group' => 'audio', 'module' => 'dss', 'mime_type' => 'application/octet-stream'), 'dsdiff' => array('pattern' => '^FRM8', 'group' => 'audio', 'module' => 'dsdiff', 'mime_type' => 'audio/dsd'), 'dts' => array('pattern' => '^\\x7F\\xFE\\x80\\x01', 'group' => 'audio', 'module' => 'dts', 'mime_type' => 'audio/dts'), 'flac' => array('pattern' => '^fLaC', 'group' => 'audio', 'module' => 'flac', 'mime_type' => 'audio/flac'), 'la' => array('pattern' => '^LA0[2-4]', 'group' => 'audio', 'module' => 'la', 'mime_type' => 'application/octet-stream'), 'lpac' => array('pattern' => '^LPAC', 'group' => 'audio', 'module' => 'lpac', 'mime_type' => 'application/octet-stream'), 'midi' => array('pattern' => '^MThd', 'group' => 'audio', 'module' => 'midi', 'mime_type' => 'audio/midi'), 'mac' => array('pattern' => '^MAC ', 'group' => 'audio', 'module' => 'monkey', 'mime_type' => 'audio/x-monkeys-audio'), 'it' => array('pattern' => '^IMPM', 'group' => 'audio', 'module' => 'mod', 'mime_type' => 'audio/it'), 'xm' => array('pattern' => '^Extended Module', 'group' => 'audio', 'module' => 'mod', 'mime_type' => 'audio/xm'), 's3m' => array('pattern' => '^.{44}SCRM', 'group' => 'audio', 'module' => 'mod', 'mime_type' => 'audio/s3m'), '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' => 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' => array('pattern' => '^(\\*RIFF|OFR)', 'group' => 'audio', 'module' => 'optimfrog', 'mime_type' => 'application/octet-stream'), 'rkau' => array('pattern' => '^RKA', 'group' => 'audio', 'module' => 'rkau', 'mime_type' => 'application/octet-stream'), 'shn' => array('pattern' => '^ajkg', 'group' => 'audio', 'module' => 'shorten', 'mime_type' => 'audio/xmms-shn', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'tak' => array('pattern' => '^tBaK', 'group' => 'audio', 'module' => 'tak', 'mime_type' => 'application/octet-stream'), 'tta' => array('pattern' => '^TTA', 'group' => 'audio', 'module' => 'tta', 'mime_type' => 'application/octet-stream'), 'voc' => array('pattern' => '^Creative Voice File', 'group' => 'audio', 'module' => 'voc', 'mime_type' => 'audio/voc'), 'vqf' => array('pattern' => '^TWIN', 'group' => 'audio', 'module' => 'vqf', 'mime_type' => 'application/octet-stream'), 'wv' => array('pattern' => '^wvpk', 'group' => 'audio', 'module' => 'wavpack', 'mime_type' => 'application/octet-stream'), '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' => array('pattern' => '^(BIK|SMK)', 'group' => 'audio-video', 'module' => 'bink', 'mime_type' => 'application/octet-stream'), 'flv' => array('pattern' => '^FLV[\\x01]', 'group' => 'audio-video', 'module' => 'flv', 'mime_type' => 'video/x-flv'), 'ivf' => array('pattern' => '^DKIF', 'group' => 'audio-video', 'module' => 'ivf', 'mime_type' => 'video/x-ivf'), 'matroska' => array('pattern' => '^\\x1A\\x45\\xDF\\xA3', 'group' => 'audio-video', 'module' => 'matroska', 'mime_type' => 'video/x-matroska'), 'mpeg' => array('pattern' => '^\\x00\\x00\\x01[\\xB3\\xBA]', 'group' => 'audio-video', 'module' => 'mpeg', 'mime_type' => 'video/mpeg'), 'nsv' => array('pattern' => '^NSV[sf]', 'group' => 'audio-video', 'module' => 'nsv', 'mime_type' => 'application/octet-stream'), 'ogg' => array('pattern' => '^OggS', 'group' => 'audio', 'module' => 'ogg', 'mime_type' => 'application/ogg', 'fail_id3' => 'WARNING', 'fail_ape' => 'WARNING'), 'quicktime' => array('pattern' => '^.{4}(cmov|free|ftyp|mdat|moov|pnot|skip|wide)', 'group' => 'audio-video', 'module' => 'quicktime', 'mime_type' => 'video/quicktime'), 'riff' => array('pattern' => '^(RIFF|SDSS|FORM)', 'group' => 'audio-video', 'module' => 'riff', 'mime_type' => 'audio/wav', 'fail_ape' => 'WARNING'), 'real' => array('pattern' => '^\\.(RMF|ra)', 'group' => 'audio-video', 'module' => 'real', 'mime_type' => 'audio/x-realaudio'), 'swf' => array('pattern' => '^(F|C)WS', 'group' => 'audio-video', 'module' => 'swf', 'mime_type' => 'application/x-shockwave-flash'), 'ts' => array('pattern' => '^(\\x47.{187}){10,}', 'group' => 'audio-video', 'module' => 'ts', 'mime_type' => 'video/MP2T'), 'wtv' => array('pattern' => '^\\xB7\\xD8\\x00\\x20\\x37\\x49\\xDA\\x11\\xA6\\x4E\\x00\\x07\\xE9\\x5E\\xAD\\x8D', 'group' => 'audio-video', 'module' => 'wtv', 'mime_type' => 'video/x-ms-wtv'), 'bmp' => array('pattern' => '^BM', 'group' => 'graphic', 'module' => 'bmp', 'mime_type' => 'image/bmp', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'gif' => array('pattern' => '^GIF', 'group' => 'graphic', 'module' => 'gif', 'mime_type' => 'image/gif', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'jpg' => array('pattern' => '^\\xFF\\xD8\\xFF', 'group' => 'graphic', 'module' => 'jpg', 'mime_type' => 'image/jpeg', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'pcd' => array('pattern' => '^.{2048}PCD_IPI\\x00', 'group' => 'graphic', 'module' => 'pcd', 'mime_type' => 'image/x-photo-cd', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), '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' => 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' => array('pattern' => '^(II\\x2A\\x00|MM\\x00\\x2A)', 'group' => 'graphic', 'module' => 'tiff', 'mime_type' => 'image/tiff', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'efax' => array('pattern' => '^\\xDC\\xFE', 'group' => 'graphic', 'module' => 'efax', 'mime_type' => 'image/efax', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'iso' => array('pattern' => '^.{32769}CD001', 'group' => 'misc', 'module' => 'iso', 'mime_type' => 'application/octet-stream', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR', 'iconv_req' => false), 'hpk' => array('pattern' => '^BPUL', 'group' => 'archive', 'module' => 'hpk', 'mime_type' => 'application/octet-stream', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'rar' => array('pattern' => '^Rar\\!', 'group' => 'archive', 'module' => 'rar', 'mime_type' => 'application/vnd.rar', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'szip' => array('pattern' => '^SZ\\x0A\\x04', 'group' => 'archive', 'module' => 'szip', 'mime_type' => 'application/octet-stream', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), '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'), 'gz' => array('pattern' => '^\\x1F\\x8B\\x08', 'group' => 'archive', 'module' => 'gzip', 'mime_type' => 'application/gzip', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'zip' => array('pattern' => '^PK\\x03\\x04', 'group' => 'archive', 'module' => 'zip', 'mime_type' => 'application/zip', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'xz' => array('pattern' => '^\\xFD7zXZ\\x00', 'group' => 'archive', 'module' => 'xz', 'mime_type' => 'application/x-xz', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'par2' => array('pattern' => '^PAR2\\x00PKT', 'group' => 'misc', 'module' => 'par2', 'mime_type' => 'application/octet-stream', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'pdf' => array('pattern' => '^\\x25PDF', 'group' => 'misc', 'module' => 'pdf', 'mime_type' => 'application/pdf', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'msoffice' => array('pattern' => '^\\xD0\\xCF\\x11\\xE0\\xA1\\xB1\\x1A\\xE1', 'group' => 'misc', 'module' => 'msoffice', 'mime_type' => 'application/octet-stream', 'fail_id3' => 'ERROR', 'fail_ape' => 'ERROR'), 'cue' => array('pattern' => '', 'group' => 'misc', 'module' => 'cue', 'mime_type' => 'application/octet-stream'));
        }
        return $format_info;
    }
    public function GetFileFormat(&$filedata, $filename = '')
    {
        foreach ($this->GetFileFormatArray() as $format_name => $info) {
            if (!empty($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)) {
            $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)) {
            $GetFileFormatArray = $this->GetFileFormatArray();
            $info = $GetFileFormatArray['cue'];
            $info['include'] = 'module.' . $info['group'] . '.' . $info['module'] . '.php';
            return $info;
        }
        return false;
    }
    public function CharConvert(&$array, $encoding)
    {
        if ($encoding == $this->encoding) {
            return;
        }
        foreach ($array as $key => $value) {
            if (is_array($value)) {
                $this->CharConvert($array[$key], $encoding);
            } elseif (is_string($value)) {
                $array[$key] = trim(getid3_lib::iconv_fallback($encoding, $this->encoding, $value));
            }
        }
    }
    public function HandleAllTags()
    {
        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', $this->encoding_id3v1), 'id3v2' => array('id3v2', 'UTF-8'), 'ape' => array('ape', 'UTF-8'), 'cue' => array('cue', 'ISO-8859-1'), 'matroska' => array('matroska', 'UTF-8'), 'flac' => array('vorbiscomment', 'UTF-8'), 'divxtag' => array('divx', 'ISO-8859-1'), 'iptc' => array('iptc', 'ISO-8859-1'), 'dsdiff' => array('dsdiff', 'ISO-8859-1'));
        }
        foreach ($tags as $comment_name => $tagname_encoding_array) {
            list($tag_name, $encoding) = $tagname_encoding_array;
            if (isset($this->info[$comment_name]) && !isset($this->info[$comment_name]['encoding'])) {
                $this->info[$comment_name]['encoding'] = $encoding;
            }
            if (!empty($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");
                        }
                        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])) {
                    continue;
                }
                $this->CharConvert($this->info['tags'][$tag_name], $this->info[$comment_name]['encoding']);
                if ($this->option_tags_html) {
                    foreach ($this->info['tags'][$tag_name] as $tag_key => $valuearray) {
                        if ($tag_key == 'picture') {
                            continue;
                        }
                        $this->info['tags_html'][$tag_name][$tag_key] = getid3_lib::recursiveMultiByteCharString2HTML($valuearray, $this->info[$comment_name]['encoding']);
                    }
                }
            }
        }
        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 $unset_key) {
                    if (empty($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[$unset_key]);
                    }
                }
                if (isset($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[$tagtype]);
                }
            }
        }
        return true;
    }
    public function CopyTagsToComments(&$ThisFileInfo)
    {
        return getid3_lib::CopyTagsToComments($ThisFileInfo, $this->option_tags_html);
    }
    public function getHashdata($algorithm)
    {
        switch ($algorithm) {
            case 'md5':
            case 'sha1':
                break;
            default:
                return $this->error('bad algorithm "' . $algorithm . '" in getHashdata()');
        }
        if (!empty($this->info['fileformat']) && !empty($this->info['dataformat']) && $this->info['fileformat'] == 'ogg' && $this->info['audio']['dataformat'] == 'vorbis') {
            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 {
                $old_abort = ignore_user_abort(true);
                $empty = tempnam(GETID3_TEMP_DIR, 'getID3');
                touch($empty);
                $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 {
                    $commandline = 'vorbiscomment -w -c ' . escapeshellarg($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 {
                    switch ($algorithm) {
                        case 'md5':
                            $this->info[$algorithm . '_data'] = md5_file($temp);
                            break;
                        case 'sha1':
                            $this->info[$algorithm . '_data'] = sha1_file($temp);
                            break;
                    }
                }
                unlink($empty);
                unlink($temp);
                ignore_user_abort($old_abort);
            }
        } else {
            if (!empty($this->info['avdataoffset']) || isset($this->info['avdataend']) && $this->info['avdataend'] < $this->info['filesize']) {
                $this->info[$algorithm . '_data'] = getid3_lib::hash_data($this->info['filenamepath'], $this->info['avdataoffset'], $this->info['avdataend'], $algorithm);
            } else {
                switch ($algorithm) {
                    case 'md5':
                        $this->info[$algorithm . '_data'] = md5_file($this->info['filenamepath']);
                        break;
                    case 'sha1':
                        $this->info[$algorithm . '_data'] = sha1_file($this->info['filenamepath']);
                        break;
                }
            }
        }
        return true;
    }
    public function ChannelsBitratePlaytimeCalculations()
    {
        if (!empty($this->info['audio']['channelmode']) || !isset($this->info['audio']['channels'])) {
        } elseif ($this->info['audio']['channels'] == 1) {
            $this->info['audio']['channelmode'] = 'mono';
        } elseif ($this->info['audio']['channels'] == 2) {
            $this->info['audio']['channelmode'] = 'stereo';
        }
        $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']['dataformat']) && $this->info['video']['dataformat'] && (!isset($this->info['video']['bitrate']) || $this->info['video']['bitrate'] == 0)) {
            if (isset($this->info['audio']['bitrate']) && $this->info['audio']['bitrate'] > 0 && $this->info['audio']['bitrate'] == $this->info['bitrate']) {
                if (isset($this->info['playtime_seconds']) && $this->info['playtime_seconds'] > 0) {
                    if (isset($this->info['avdataend']) && isset($this->info['avdataoffset'])) {
                        $this->info['bitrate'] = round(($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'])) {
                $this->info['audio']['bitrate'] = $this->info['bitrate'];
            } elseif (isset($this->info['video']['resolution_x']) && empty($this->info['audio']['dataformat'])) {
                $this->info['video']['bitrate'] = $this->info['bitrate'];
            }
        }
        if (!empty($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'])) {
                $this->info['replay_gain']['reference_volume'] = 89.0;
            }
            if (isset($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(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 & 0x80 || $perms & 0x10 || $perms & 0x2;
        }
        return $ret;
    }
}
abstract class getid3_handler
{
    protected $getid3;
    protected $data_string_flag = false;
    protected $data_string = '';
    protected $data_string_position = 0;
    protected $data_string_length = 0;
    private $dependency_to;
    public function __construct(getID3 $getid3, $call_module = null)
    {
        $this->getid3 = $getid3;
        if ($call_module) {
            $this->dependency_to = str_replace('getid3_', '', $call_module);
        }
    }
    public abstract function Analyze();
    public function AnalyzeString($string)
    {
        $this->setStringMode($string);
        $saved_avdataoffset = $this->getid3->info['avdataoffset'];
        $saved_avdataend = $this->getid3->info['avdataend'];
        $saved_filesize = isset($this->getid3->info['filesize']) ? $this->getid3->info['filesize'] : null;
        $this->getid3->info['avdataoffset'] = 0;
        $this->getid3->info['avdataend'] = $this->getid3->info['filesize'] = $this->data_string_length;
        $this->Analyze();
        $this->getid3->info['avdataoffset'] = $saved_avdataoffset;
        $this->getid3->info['avdataend'] = $saved_avdataend;
        $this->getid3->info['filesize'] = $saved_filesize;
        $this->data_string_flag = false;
    }
    public function setStringMode($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);
        }
        $contents = '';
        do {
            if ($this->getid3->memory_limit > 0 && $bytes / $this->getid3->memory_limit > 0.99) {
                throw new getid3_exception('cannot fread(' . $bytes . ' from ' . $this->ftell() . ') that is more than available PHP memory (' . $this->getid3->memory_limit . ')', 10);
            }
            $part = fread($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 fgets()
    {
        $buffer = '';
        $prevchar = '';
        if ($this->data_string_flag) {
            while (true) {
                $thischar = substr($this->data_string, $this->data_string_position++, 1);
                if ($prevchar == "\r" && $thischar != "\n") {
                    $this->data_string_position--;
                    break;
                }
                $buffer .= $thischar;
                if ($thischar == "\n") {
                    break;
                }
                if ($this->data_string_position >= $this->data_string_length) {
                    break;
                }
                $prevchar = $thischar;
            }
        } else {
            while (true) {
                $thischar = fgetc($this->getid3->fp);
                if ($prevchar == "\r" && $thischar != "\n") {
                    fseek($this->getid3->fp, -1, SEEK_CUR);
                    break;
                }
                $buffer .= $thischar;
                if ($thischar == "\n") {
                    break;
                }
                if (feof($this->getid3->fp)) {
                    break;
                }
                $prevchar = $thischar;
            }
        }
        return $buffer;
    }
    protected function feof()
    {
        if ($this->data_string_flag) {
            return $this->data_string_position >= $this->data_string_length;
        }
        return feof($this->getid3->fp);
    }
    protected final 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($text)
    {
    }
    public function saveAttachment($name, $offset, $length, $image_mime = null)
    {
        try {
            if ($this->getid3->option_save_attachments === getID3::ATTACHMENTS_NONE) {
                $attachment = null;
            } elseif ($this->getid3->option_save_attachments === getID3::ATTACHMENTS_INLINE) {
                $this->fseek($offset);
                $attachment = $this->fread($length);
                if ($attachment === false || strlen($attachment) != $length) {
                    throw new Exception('failed to read attachment data');
                }
            } else {
                $dir = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->getid3->option_save_attachments), DIRECTORY_SEPARATOR);
                if (!is_dir($dir) || !getID3::is_writable($dir)) {
                    throw new Exception('supplied path (' . $dir . ') does not exist, or is not writable');
                }
                $dest = $dir . DIRECTORY_SEPARATOR . $name . ($image_mime ? '.' . getid3_lib::ImageExtFromMime($image_mime) : '');
                if (($fp_dest = fopen($dest, 'wb')) == false) {
                    throw new Exception('failed to create file ' . $dest);
                }
                $this->fseek($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 $e) {
            if (isset($fp_dest) && is_resource($fp_dest)) {
                fclose($fp_dest);
            }
            if (isset($dest) && file_exists($dest)) {
                unlink($dest);
            }
            $attachment = null;
            $this->warning('Failed to extract attachment ' . $name . ': ' . $e->getMessage());
        }
        $this->fseek($offset + $length);
        return $attachment;
    }
}
class getid3_exception extends Exception
{
    public $message;
}