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Diffstat (limited to 'modules/getid3/module.misc.iso.php')
| -rw-r--r-- | modules/getid3/module.misc.iso.php | 450 |
1 files changed, 450 insertions, 0 deletions
diff --git a/modules/getid3/module.misc.iso.php b/modules/getid3/module.misc.iso.php new file mode 100644 index 00000000..100cf0a8 --- /dev/null +++ b/modules/getid3/module.misc.iso.php @@ -0,0 +1,450 @@ +<?php +// +----------------------------------------------------------------------+ +// | PHP version 5 | +// +----------------------------------------------------------------------+ +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | +// +----------------------------------------------------------------------+ +// | This source file is subject to version 2 of the GPL license, | +// | that is bundled with this package in the file license.txt and is | +// | available through the world-wide-web at the following url: | +// | http://www.gnu.org/copyleft/gpl.html | +// +----------------------------------------------------------------------+ +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | +// +----------------------------------------------------------------------+ +// | Authors: James Heinrich <infoØgetid3*org> | +// | Allan Hansen <ahØartemis*dk> | +// +----------------------------------------------------------------------+ +// | module.misc.iso.php | +// | Module for analyzing ISO files | +// | dependencies: NONE | +// +----------------------------------------------------------------------+ +// +// $Id: module.misc.iso.php,v 1.3 2006/11/02 10:48:02 ah Exp $ + + + +class getid3_iso extends getid3_handler +{ + + public function Analyze() { + + $getid3 = $this->getid3; + + $getid3->info['fileformat'] = 'iso'; + + for ($i = 16; $i <= 19; $i++) { + fseek($getid3->fp, 2048 * $i, SEEK_SET); + $iso_header = fread($getid3->fp, 2048); + if (substr($iso_header, 1, 5) == 'CD001') { + switch (ord($iso_header{0})) { + case 1: + $getid3->info['iso']['primary_volume_descriptor']['offset'] = 2048 * $i; + $this->ParsePrimaryVolumeDescriptor($iso_header); + break; + + case 2: + $getid3->info['iso']['supplementary_volume_descriptor']['offset'] = 2048 * $i; + $this->ParseSupplementaryVolumeDescriptor($iso_header); + break; + + default: + // skip + break; + } + } + } + + $this->ParsePathTable(); + + $getid3->info['iso']['files'] = array (); + foreach ($getid3->info['iso']['path_table']['directories'] as $directory_num => $directory_data) { + $getid3->info['iso']['directories'][$directory_num] = $this->ParseDirectoryRecord($directory_data); + } + + return true; + } + + + + private function ParsePrimaryVolumeDescriptor(&$iso_header) { + + $getid3 = $this->getid3; + + // ISO integer values are stored *BOTH* Little-Endian AND Big-Endian format!! + // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field + + $getid3->info['iso']['primary_volume_descriptor']['raw'] = array (); + $info_iso_primaryVD = &$getid3->info['iso']['primary_volume_descriptor']; + $info_iso_primaryVD_raw = &$info_iso_primaryVD['raw']; + + $info_iso_primaryVD_raw['volume_descriptor_type'] = getid3_lib::LittleEndian2Int(substr($iso_header, 0, 1)); + $info_iso_primaryVD_raw['standard_identifier'] = substr($iso_header, 1, 5); + if ($info_iso_primaryVD_raw['standard_identifier'] != 'CD001') { + throw new getid3_exception('Expected "CD001" at offset ('.($info_iso_primaryVD['offset'] + 1).'), found "'.$info_iso_primaryVD_raw['standard_identifier'].'" instead'); + } + + getid3_lib::ReadSequence('LittleEndian2Int', $info_iso_primaryVD_raw, $iso_header, 6, + array ( + 'volume_descriptor_version' => 1, + 'IGNORE-unused_1' => 1, + 'system_identifier' => -32, // string + 'volume_identifier' => -32, // string + 'IGNORE-unused_2' => 8, + 'volume_space_size' => 4, + 'IGNORE-1' => 4, + 'IGNORE-unused_3' => 32, + 'volume_set_size' => 2, + 'IGNORE-2' => 2, + 'volume_sequence_number' => 2, + 'IGNORE-3' => 2, + 'logical_block_size' => 2, + 'IGNORE-4' => 2, + 'path_table_size' => 4, + 'IGNORE-5' => 4, + 'path_table_l_location' => 2, + 'IGNORE-6' => 2, + 'path_table_l_opt_location' => 2, + 'IGNORE-7' => 2, + 'path_table_m_location' => 2, + 'IGNORE-8' => 2, + 'path_table_m_opt_location' => 2, + 'IGNORE-9' => 2, + 'root_directory_record' => -34, // string + 'volume_set_identifier' => -128, // string + 'publisher_identifier' => -128, // string + 'data_preparer_identifier' => -128, // string + 'application_identifier' => -128, // string + 'copyright_file_identifier' => -37, // string + 'abstract_file_identifier' => -37, // string + 'bibliographic_file_identifier' => -37, // string + 'volume_creation_date_time' => -17, // string + 'volume_modification_date_time' => -17, // string + 'volume_expiration_date_time' => -17, // string + 'volume_effective_date_time' => -17, // string + 'file_structure_version' => 1, + 'IGNORE-unused_4' => 1, + 'application_data' => -512 // string + ) + ); + + $info_iso_primaryVD['system_identifier'] = trim($info_iso_primaryVD_raw['system_identifier']); + $info_iso_primaryVD['volume_identifier'] = trim($info_iso_primaryVD_raw['volume_identifier']); + $info_iso_primaryVD['volume_set_identifier'] = trim($info_iso_primaryVD_raw['volume_set_identifier']); + $info_iso_primaryVD['publisher_identifier'] = trim($info_iso_primaryVD_raw['publisher_identifier']); + $info_iso_primaryVD['data_preparer_identifier'] = trim($info_iso_primaryVD_raw['data_preparer_identifier']); + $info_iso_primaryVD['application_identifier'] = trim($info_iso_primaryVD_raw['application_identifier']); + $info_iso_primaryVD['copyright_file_identifier'] = trim($info_iso_primaryVD_raw['copyright_file_identifier']); + $info_iso_primaryVD['abstract_file_identifier'] = trim($info_iso_primaryVD_raw['abstract_file_identifier']); + $info_iso_primaryVD['bibliographic_file_identifier'] = trim($info_iso_primaryVD_raw['bibliographic_file_identifier']); + + $info_iso_primaryVD['volume_creation_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_primaryVD_raw['volume_creation_date_time']); + $info_iso_primaryVD['volume_modification_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_primaryVD_raw['volume_modification_date_time']); + $info_iso_primaryVD['volume_expiration_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_primaryVD_raw['volume_expiration_date_time']); + $info_iso_primaryVD['volume_effective_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_primaryVD_raw['volume_effective_date_time']); + + if (($info_iso_primaryVD_raw['volume_space_size'] * 2048) > $getid3->info['filesize']) { + throw new getid3_exception('Volume Space Size ('.($info_iso_primaryVD_raw['volume_space_size'] * 2048).' bytes) is larger than the file size ('.$getid3->info['filesize'].' bytes) (truncated file?)'); + } + + return true; + } + + + + private function ParseSupplementaryVolumeDescriptor(&$iso_header) { + + $getid3 = $this->getid3; + + // ISO integer values are stored Both-Endian format!! + // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field + + $getid3->info['iso']['supplementary_volume_descriptor']['raw'] = array (); + $info_iso_supplementaryVD = &$getid3->info['iso']['supplementary_volume_descriptor']; + $info_iso_supplementaryVD_raw = &$info_iso_supplementaryVD['raw']; + + $info_iso_supplementaryVD_raw['volume_descriptor_type'] = getid3_lib::LittleEndian2Int(substr($iso_header, 0, 1)); + $info_iso_supplementaryVD_raw['standard_identifier'] = substr($iso_header, 1, 5); + if ($info_iso_supplementaryVD_raw['standard_identifier'] != 'CD001') { + throw new getid3_exception('Expected "CD001" at offset ('.($info_iso_supplementaryVD['offset'] + 1).'), found "'.$info_iso_supplementaryVD_raw['standard_identifier'].'" instead'); + } + + getid3_lib::ReadSequence('LittleEndian2Int', $info_iso_supplementaryVD_raw, $iso_header, 6, + array ( + 'volume_descriptor_version' => 1, + 'IGNORE-unused_1' => -1, + 'system_identifier' => -32, + 'volume_identifier' => -32, + 'IGNORE-unused_2' => -8, + 'volume_space_size' => 4, + 'IGNORE-1' => 4, + 'IGNORE-unused_3' => -32, + 'volume_set_size' => 2, + 'IGNORE-2' => 2, + 'volume_sequence_number' => 2, + 'IGNORE-3' => 2, + 'logical_block_size' => 2, + 'IGNORE-4' => 2, + 'path_table_size' => 4, + 'IGNORE-5' => 4, + 'path_table_l_location' => 2, + 'IGNORE-6' => 2, + 'path_table_l_opt_location' => 2, + 'IGNORE-7' => 2, + 'path_table_m_location' => 2, + 'IGNORE-8' => 2, + 'path_table_m_opt_location' => 2, + 'IGNORE-9' => 2, + 'root_directory_record' => -34, + 'volume_set_identifier' => -128, + 'publisher_identifier' => -128, + 'data_preparer_identifier' => -128, + 'application_identifier' => -128, + 'copyright_file_identifier' => -37, + 'abstract_file_identifier' => -37, + 'bibliographic_file_identifier' => -37, + 'volume_creation_date_time' => -17, + 'volume_modification_date_time' => -17, + 'volume_expiration_date_time' => -17, + 'volume_effective_date_time' => -17, + 'file_structure_version' => 1, + 'IGNORE-unused_4' => 1, + 'application_data' => -512 + ) + ); + + $info_iso_supplementaryVD['system_identifier'] = trim($info_iso_supplementaryVD_raw['system_identifier']); + $info_iso_supplementaryVD['volume_identifier'] = trim($info_iso_supplementaryVD_raw['volume_identifier']); + $info_iso_supplementaryVD['volume_set_identifier'] = trim($info_iso_supplementaryVD_raw['volume_set_identifier']); + $info_iso_supplementaryVD['publisher_identifier'] = trim($info_iso_supplementaryVD_raw['publisher_identifier']); + $info_iso_supplementaryVD['data_preparer_identifier'] = trim($info_iso_supplementaryVD_raw['data_preparer_identifier']); + $info_iso_supplementaryVD['application_identifier'] = trim($info_iso_supplementaryVD_raw['application_identifier']); + $info_iso_supplementaryVD['copyright_file_identifier'] = trim($info_iso_supplementaryVD_raw['copyright_file_identifier']); + $info_iso_supplementaryVD['abstract_file_identifier'] = trim($info_iso_supplementaryVD_raw['abstract_file_identifier']); + $info_iso_supplementaryVD['bibliographic_file_identifier'] = trim($info_iso_supplementaryVD_raw['bibliographic_file_identifier']); + + $info_iso_supplementaryVD['volume_creation_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_supplementaryVD_raw['volume_creation_date_time']); + $info_iso_supplementaryVD['volume_modification_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_supplementaryVD_raw['volume_modification_date_time']); + $info_iso_supplementaryVD['volume_expiration_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_supplementaryVD_raw['volume_expiration_date_time']); + $info_iso_supplementaryVD['volume_effective_date_time'] = getid3_iso::ISOtimeText2UNIXtime($info_iso_supplementaryVD_raw['volume_effective_date_time']); + + if (($info_iso_supplementaryVD_raw['volume_space_size'] * $info_iso_supplementaryVD_raw['logical_block_size']) > $getid3->info['filesize']) { + throw new getid3_exception('Volume Space Size ('.($info_iso_supplementaryVD_raw['volume_space_size'] * $info_iso_supplementaryVD_raw['logical_block_size']).' bytes) is larger than the file size ('.$getid3->info['filesize'].' bytes) (truncated file?)'); + } + + return true; + } + + + + private function ParsePathTable() { + + $getid3 = $this->getid3; + + if (!isset($getid3->info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']) && !isset($getid3->info['iso']['primary_volume_descriptor']['raw']['path_table_l_location'])) { + return false; + } + if (isset($getid3->info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location'])) { + $path_table_location = $getid3->info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']; + $path_table_size = $getid3->info['iso']['supplementary_volume_descriptor']['raw']['path_table_size']; + $text_encoding = 'UTF-16BE'; // Big-Endian Unicode + } + else { + $path_table_location = $getid3->info['iso']['primary_volume_descriptor']['raw']['path_table_l_location']; + $path_table_size = $getid3->info['iso']['primary_volume_descriptor']['raw']['path_table_size']; + $text_encoding = 'ISO-8859-1'; // Latin-1 + } + + if (($path_table_location * 2048) > $getid3->info['filesize']) { + throw new getid3_exception('Path Table Location specifies an offset ('.($path_table_location * 2048).') beyond the end-of-file ('.$getid3->info['filesize'].')'); + } + + $getid3->info['iso']['path_table']['offset'] = $path_table_location * 2048; + fseek($getid3->fp, $getid3->info['iso']['path_table']['offset'], SEEK_SET); + $getid3->info['iso']['path_table']['raw'] = fread($getid3->fp, $path_table_size); + + $offset = 0; + $pathcounter = 1; + while ($offset < $path_table_size) { + + $getid3->info['iso']['path_table']['directories'][$pathcounter] = array (); + $info_iso_pathtable_directories_current = &$getid3->info['iso']['path_table']['directories'][$pathcounter]; + + getid3_lib::ReadSequence('LittleEndian2Int', $info_iso_pathtable_directories_current, $getid3->info['iso']['path_table']['raw'], $offset, + array ( + 'length' => 1, + 'extended_length' => 1, + 'location_logical' => 4, + 'parent_directory' => 2, + ) + ); + + $info_iso_pathtable_directories_current['name'] = substr($getid3->info['iso']['path_table']['raw'], $offset+8, $info_iso_pathtable_directories_current['length']); + + $offset += 8 + $info_iso_pathtable_directories_current['length'] + ($info_iso_pathtable_directories_current['length'] % 2); + + $info_iso_pathtable_directories_current['name_ascii'] = $getid3->iconv($text_encoding, $getid3->encoding, $info_iso_pathtable_directories_current['name'], true); + + $info_iso_pathtable_directories_current['location_bytes'] = $info_iso_pathtable_directories_current['location_logical'] * 2048; + if ($pathcounter == 1) { + $info_iso_pathtable_directories_current['full_path'] = '/'; + } + else { + $info_iso_pathtable_directories_current['full_path'] = $getid3->info['iso']['path_table']['directories'][$info_iso_pathtable_directories_current['parent_directory']]['full_path'].$info_iso_pathtable_directories_current['name_ascii'].'/'; + } + $full_path_array[] = $info_iso_pathtable_directories_current['full_path']; + + $pathcounter++; + } + + return true; + } + + + + private function ParseDirectoryRecord($directory_data) { + + $getid3 = $this->getid3; + + $text_encoding = isset($getid3->info['iso']['supplementary_volume_descriptor']) ? 'UTF-16BE' : 'ISO-8859-1'; + + fseek($getid3->fp, $directory_data['location_bytes'], SEEK_SET); + $directory_record_data = fread($getid3->fp, 1); + + while (ord($directory_record_data{0}) > 33) { + + $directory_record_data .= fread($getid3->fp, ord($directory_record_data{0}) - 1); + + $this_directory_record = array (); + $this_directory_record['raw'] = array (); + $this_directory_record_raw = &$this_directory_record['raw']; + + getid3_lib::ReadSequence('LittleEndian2Int', $this_directory_record_raw, $directory_record_data, 0, + array ( + 'length' => 1, + 'extended_attribute_length' => 1, + 'offset_logical' => 4, + 'IGNORE-1' => 4, + 'filesize' => 4, + 'IGNORE-2' => 4, + 'recording_date_time' => -7, + 'file_flags' => 1, + 'file_unit_size' => 1, + 'interleave_gap_size' => 1, + 'volume_sequence_number' => 2, + 'IGNORE-3' => 2, + 'file_identifier_length' => 1, + ) + ); + + $this_directory_record_raw['file_identifier'] = substr($directory_record_data, 33, $this_directory_record_raw['file_identifier_length']); + + $this_directory_record['file_identifier_ascii'] = $getid3->iconv($text_encoding, $getid3->encoding, $this_directory_record_raw['file_identifier'], true); + $this_directory_record['filesize'] = $this_directory_record_raw['filesize']; + $this_directory_record['offset_bytes'] = $this_directory_record_raw['offset_logical'] * 2048; + $this_directory_record['file_flags']['hidden'] = (bool)($this_directory_record_raw['file_flags'] & 0x01); + $this_directory_record['file_flags']['directory'] = (bool)($this_directory_record_raw['file_flags'] & 0x02); + $this_directory_record['file_flags']['associated'] = (bool)($this_directory_record_raw['file_flags'] & 0x04); + $this_directory_record['file_flags']['extended'] = (bool)($this_directory_record_raw['file_flags'] & 0x08); + $this_directory_record['file_flags']['permissions'] = (bool)($this_directory_record_raw['file_flags'] & 0x10); + $this_directory_record['file_flags']['multiple'] = (bool)($this_directory_record_raw['file_flags'] & 0x80); + $this_directory_record['recording_timestamp'] = getid3_iso::ISOtime2UNIXtime($this_directory_record_raw['recording_date_time']); + + if ($this_directory_record['file_flags']['directory']) { + $this_directory_record['filename'] = $directory_data['full_path']; + } + else { + $this_directory_record['filename'] = $directory_data['full_path'].getid3_iso::ISOstripFilenameVersion($this_directory_record['file_identifier_ascii']); + $getid3->info['iso']['files'] = getid3_iso::array_merge_clobber($getid3->info['iso']['files'], getid3_iso::CreateDeepArray($this_directory_record['filename'], '/', $this_directory_record['filesize'])); + } + + $directory_record[] = $this_directory_record; + $directory_record_data = fread($getid3->fp, 1); + } + + return $directory_record; + } + + + + public static function ISOstripFilenameVersion($iso_filename) { + + // convert 'filename.ext;1' to 'filename.ext' + if (!strstr($iso_filename, ';')) { + return $iso_filename; + } + return substr($iso_filename, 0, strpos($iso_filename, ';')); + } + + + + public static function ISOtimeText2UNIXtime($iso_time) { + + if (!(int)substr($iso_time, 0, 4)) { + return false; + } + + return gmmktime((int)substr($iso_time, 8, 2), (int)substr($iso_time, 10, 2), (int)substr($iso_time, 12, 2), (int)substr($iso_time, 4, 2), (int)substr($iso_time, 6, 2), (int)substr($iso_time, 0, 4)); + } + + + + public static function ISOtime2UNIXtime($iso_time) { + + // Represented by seven bytes: + // 1: Number of years since 1900 + // 2: Month of the year from 1 to 12 + // 3: Day of the Month from 1 to 31 + // 4: Hour of the day from 0 to 23 + // 5: Minute of the hour from 0 to 59 + // 6: second of the minute from 0 to 59 + // 7: Offset from Greenwich Mean Time in number of 15 minute intervals from -48 (West) to +52 (East) + + return gmmktime(ord($iso_time[3]), ord($iso_time[4]), ord($iso_time[5]), ord($iso_time[1]), ord($iso_time[2]), ord($iso_time[0]) + 1900); + } + + + + public static function array_merge_clobber($array1, $array2) { + + // written by kcØhireability*com + // taken from http://www.php.net/manual/en/function.array-merge-recursive.php + + if (!is_array($array1) || !is_array($array2)) { + return false; + } + + $newarray = $array1; + foreach ($array2 as $key => $val) { + if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { + $newarray[$key] = getid3_iso::array_merge_clobber($newarray[$key], $val); + } else { + $newarray[$key] = $val; + } + } + return $newarray; + } + + + + public static function CreateDeepArray($array_path, $separator, $value) { + + // assigns $value to a nested array path: + // $foo = getid3_lib::CreateDeepArray('/path/to/my', '/', 'file.txt') + // is the same as: + // $foo = array ('path'=>array('to'=>'array('my'=>array('file.txt')))); + // or + // $foo['path']['to']['my'] = 'file.txt'; + + while ($array_path{0} == $separator) { + $array_path = substr($array_path, 1); + } + if (($pos = strpos($array_path, $separator)) !== false) { + return array (substr($array_path, 0, $pos) => getid3_iso::CreateDeepArray(substr($array_path, $pos + 1), $separator, $value)); + } + + return array ($array_path => $value); + } + +} + +?>
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