diff options
Diffstat (limited to 'getid3/module.misc.iso.php')
| -rw-r--r-- | getid3/module.misc.iso.php | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/getid3/module.misc.iso.php b/getid3/module.misc.iso.php new file mode 100644 index 0000000..94df929 --- /dev/null +++ b/getid3/module.misc.iso.php @@ -0,0 +1,386 @@ +<?php +///////////////////////////////////////////////////////////////// +/// getID3() by James Heinrich <info@getid3.org> // +// available at http://getid3.sourceforge.net // +// or http://www.getid3.org // +///////////////////////////////////////////////////////////////// +// See readme.txt for more details // +///////////////////////////////////////////////////////////////// +// // +// module.misc.iso.php // +// module for analyzing ISO files // +// dependencies: NONE // +// /// +///////////////////////////////////////////////////////////////// + + +class getid3_iso +{ + + function getid3_iso($fd, &$ThisFileInfo) { + $ThisFileInfo['fileformat'] = 'iso'; + + for ($i = 16; $i <= 19; $i++) { + fseek($fd, 2048 * $i, SEEK_SET); + $ISOheader = fread($fd, 2048); + if (substr($ISOheader, 1, 5) == 'CD001') { + switch (ord($ISOheader{0})) { + case 1: + $ThisFileInfo['iso']['primary_volume_descriptor']['offset'] = 2048 * $i; + $this->ParsePrimaryVolumeDescriptor($ISOheader, $ThisFileInfo); + break; + + case 2: + $ThisFileInfo['iso']['supplementary_volume_descriptor']['offset'] = 2048 * $i; + $this->ParseSupplementaryVolumeDescriptor($ISOheader, $ThisFileInfo); + break; + + default: + // skip + break; + } + } + } + + $this->ParsePathTable($fd, $ThisFileInfo); + + $ThisFileInfo['iso']['files'] = array(); + foreach ($ThisFileInfo['iso']['path_table']['directories'] as $directorynum => $directorydata) { + + $ThisFileInfo['iso']['directories'][$directorynum] = $this->ParseDirectoryRecord($fd, $directorydata, $ThisFileInfo); + + } + + return true; + + } + + + function ParsePrimaryVolumeDescriptor(&$ISOheader, &$ThisFileInfo) { + // 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 + + // shortcuts + $ThisFileInfo['iso']['primary_volume_descriptor']['raw'] = array(); + $thisfile_iso_primaryVD = &$ThisFileInfo['iso']['primary_volume_descriptor']; + $thisfile_iso_primaryVD_raw = &$thisfile_iso_primaryVD['raw']; + + $thisfile_iso_primaryVD_raw['volume_descriptor_type'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 0, 1)); + $thisfile_iso_primaryVD_raw['standard_identifier'] = substr($ISOheader, 1, 5); + if ($thisfile_iso_primaryVD_raw['standard_identifier'] != 'CD001') { + $ThisFileInfo['error'][] = 'Expected "CD001" at offset ('.($thisfile_iso_primaryVD['offset'] + 1).'), found "'.$thisfile_iso_primaryVD_raw['standard_identifier'].'" instead'; + unset($ThisFileInfo['fileformat']); + unset($ThisFileInfo['iso']); + return false; + } + + + $thisfile_iso_primaryVD_raw['volume_descriptor_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 6, 1)); + //$thisfile_iso_primaryVD_raw['unused_1'] = substr($ISOheader, 7, 1); + $thisfile_iso_primaryVD_raw['system_identifier'] = substr($ISOheader, 8, 32); + $thisfile_iso_primaryVD_raw['volume_identifier'] = substr($ISOheader, 40, 32); + //$thisfile_iso_primaryVD_raw['unused_2'] = substr($ISOheader, 72, 8); + $thisfile_iso_primaryVD_raw['volume_space_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 80, 4)); + //$thisfile_iso_primaryVD_raw['unused_3'] = substr($ISOheader, 88, 32); + $thisfile_iso_primaryVD_raw['volume_set_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 120, 2)); + $thisfile_iso_primaryVD_raw['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 124, 2)); + $thisfile_iso_primaryVD_raw['logical_block_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 128, 2)); + $thisfile_iso_primaryVD_raw['path_table_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 132, 4)); + $thisfile_iso_primaryVD_raw['path_table_l_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 140, 2)); + $thisfile_iso_primaryVD_raw['path_table_l_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 144, 2)); + $thisfile_iso_primaryVD_raw['path_table_m_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 148, 2)); + $thisfile_iso_primaryVD_raw['path_table_m_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 152, 2)); + $thisfile_iso_primaryVD_raw['root_directory_record'] = substr($ISOheader, 156, 34); + $thisfile_iso_primaryVD_raw['volume_set_identifier'] = substr($ISOheader, 190, 128); + $thisfile_iso_primaryVD_raw['publisher_identifier'] = substr($ISOheader, 318, 128); + $thisfile_iso_primaryVD_raw['data_preparer_identifier'] = substr($ISOheader, 446, 128); + $thisfile_iso_primaryVD_raw['application_identifier'] = substr($ISOheader, 574, 128); + $thisfile_iso_primaryVD_raw['copyright_file_identifier'] = substr($ISOheader, 702, 37); + $thisfile_iso_primaryVD_raw['abstract_file_identifier'] = substr($ISOheader, 739, 37); + $thisfile_iso_primaryVD_raw['bibliographic_file_identifier'] = substr($ISOheader, 776, 37); + $thisfile_iso_primaryVD_raw['volume_creation_date_time'] = substr($ISOheader, 813, 17); + $thisfile_iso_primaryVD_raw['volume_modification_date_time'] = substr($ISOheader, 830, 17); + $thisfile_iso_primaryVD_raw['volume_expiration_date_time'] = substr($ISOheader, 847, 17); + $thisfile_iso_primaryVD_raw['volume_effective_date_time'] = substr($ISOheader, 864, 17); + $thisfile_iso_primaryVD_raw['file_structure_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 881, 1)); + //$thisfile_iso_primaryVD_raw['unused_4'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 882, 1)); + $thisfile_iso_primaryVD_raw['application_data'] = substr($ISOheader, 883, 512); + //$thisfile_iso_primaryVD_raw['unused_5'] = substr($ISOheader, 1395, 653); + + $thisfile_iso_primaryVD['system_identifier'] = trim($thisfile_iso_primaryVD_raw['system_identifier']); + $thisfile_iso_primaryVD['volume_identifier'] = trim($thisfile_iso_primaryVD_raw['volume_identifier']); + $thisfile_iso_primaryVD['volume_set_identifier'] = trim($thisfile_iso_primaryVD_raw['volume_set_identifier']); + $thisfile_iso_primaryVD['publisher_identifier'] = trim($thisfile_iso_primaryVD_raw['publisher_identifier']); + $thisfile_iso_primaryVD['data_preparer_identifier'] = trim($thisfile_iso_primaryVD_raw['data_preparer_identifier']); + $thisfile_iso_primaryVD['application_identifier'] = trim($thisfile_iso_primaryVD_raw['application_identifier']); + $thisfile_iso_primaryVD['copyright_file_identifier'] = trim($thisfile_iso_primaryVD_raw['copyright_file_identifier']); + $thisfile_iso_primaryVD['abstract_file_identifier'] = trim($thisfile_iso_primaryVD_raw['abstract_file_identifier']); + $thisfile_iso_primaryVD['bibliographic_file_identifier'] = trim($thisfile_iso_primaryVD_raw['bibliographic_file_identifier']); + $thisfile_iso_primaryVD['volume_creation_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_creation_date_time']); + $thisfile_iso_primaryVD['volume_modification_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_modification_date_time']); + $thisfile_iso_primaryVD['volume_expiration_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_expiration_date_time']); + $thisfile_iso_primaryVD['volume_effective_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_effective_date_time']); + + if (($thisfile_iso_primaryVD_raw['volume_space_size'] * 2048) > $ThisFileInfo['filesize']) { + $ThisFileInfo['error'][] = 'Volume Space Size ('.($thisfile_iso_primaryVD_raw['volume_space_size'] * 2048).' bytes) is larger than the file size ('.$ThisFileInfo['filesize'].' bytes) (truncated file?)'; + } + + return true; + } + + + function ParseSupplementaryVolumeDescriptor(&$ISOheader, &$ThisFileInfo) { + // ISO integer values are stored Both-Endian format!! + // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field + + // shortcuts + $ThisFileInfo['iso']['supplementary_volume_descriptor']['raw'] = array(); + $thisfile_iso_supplementaryVD = &$ThisFileInfo['iso']['supplementary_volume_descriptor']; + $thisfile_iso_supplementaryVD_raw = &$thisfile_iso_supplementaryVD['raw']; + + $thisfile_iso_supplementaryVD_raw['volume_descriptor_type'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 0, 1)); + $thisfile_iso_supplementaryVD_raw['standard_identifier'] = substr($ISOheader, 1, 5); + if ($thisfile_iso_supplementaryVD_raw['standard_identifier'] != 'CD001') { + $ThisFileInfo['error'][] = 'Expected "CD001" at offset ('.($thisfile_iso_supplementaryVD['offset'] + 1).'), found "'.$thisfile_iso_supplementaryVD_raw['standard_identifier'].'" instead'; + unset($ThisFileInfo['fileformat']); + unset($ThisFileInfo['iso']); + return false; + } + + $thisfile_iso_supplementaryVD_raw['volume_descriptor_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 6, 1)); + //$thisfile_iso_supplementaryVD_raw['unused_1'] = substr($ISOheader, 7, 1); + $thisfile_iso_supplementaryVD_raw['system_identifier'] = substr($ISOheader, 8, 32); + $thisfile_iso_supplementaryVD_raw['volume_identifier'] = substr($ISOheader, 40, 32); + //$thisfile_iso_supplementaryVD_raw['unused_2'] = substr($ISOheader, 72, 8); + $thisfile_iso_supplementaryVD_raw['volume_space_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 80, 4)); + if ($thisfile_iso_supplementaryVD_raw['volume_space_size'] == 0) { + // Supplementary Volume Descriptor not used + //unset($thisfile_iso_supplementaryVD); + //return false; + } + + //$thisfile_iso_supplementaryVD_raw['unused_3'] = substr($ISOheader, 88, 32); + $thisfile_iso_supplementaryVD_raw['volume_set_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 120, 2)); + $thisfile_iso_supplementaryVD_raw['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 124, 2)); + $thisfile_iso_supplementaryVD_raw['logical_block_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 128, 2)); + $thisfile_iso_supplementaryVD_raw['path_table_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 132, 4)); + $thisfile_iso_supplementaryVD_raw['path_table_l_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 140, 2)); + $thisfile_iso_supplementaryVD_raw['path_table_l_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 144, 2)); + $thisfile_iso_supplementaryVD_raw['path_table_m_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 148, 2)); + $thisfile_iso_supplementaryVD_raw['path_table_m_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 152, 2)); + $thisfile_iso_supplementaryVD_raw['root_directory_record'] = substr($ISOheader, 156, 34); + $thisfile_iso_supplementaryVD_raw['volume_set_identifier'] = substr($ISOheader, 190, 128); + $thisfile_iso_supplementaryVD_raw['publisher_identifier'] = substr($ISOheader, 318, 128); + $thisfile_iso_supplementaryVD_raw['data_preparer_identifier'] = substr($ISOheader, 446, 128); + $thisfile_iso_supplementaryVD_raw['application_identifier'] = substr($ISOheader, 574, 128); + $thisfile_iso_supplementaryVD_raw['copyright_file_identifier'] = substr($ISOheader, 702, 37); + $thisfile_iso_supplementaryVD_raw['abstract_file_identifier'] = substr($ISOheader, 739, 37); + $thisfile_iso_supplementaryVD_raw['bibliographic_file_identifier'] = substr($ISOheader, 776, 37); + $thisfile_iso_supplementaryVD_raw['volume_creation_date_time'] = substr($ISOheader, 813, 17); + $thisfile_iso_supplementaryVD_raw['volume_modification_date_time'] = substr($ISOheader, 830, 17); + $thisfile_iso_supplementaryVD_raw['volume_expiration_date_time'] = substr($ISOheader, 847, 17); + $thisfile_iso_supplementaryVD_raw['volume_effective_date_time'] = substr($ISOheader, 864, 17); + $thisfile_iso_supplementaryVD_raw['file_structure_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 881, 1)); + //$thisfile_iso_supplementaryVD_raw['unused_4'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 882, 1)); + $thisfile_iso_supplementaryVD_raw['application_data'] = substr($ISOheader, 883, 512); + //$thisfile_iso_supplementaryVD_raw['unused_5'] = substr($ISOheader, 1395, 653); + + $thisfile_iso_supplementaryVD['system_identifier'] = trim($thisfile_iso_supplementaryVD_raw['system_identifier']); + $thisfile_iso_supplementaryVD['volume_identifier'] = trim($thisfile_iso_supplementaryVD_raw['volume_identifier']); + $thisfile_iso_supplementaryVD['volume_set_identifier'] = trim($thisfile_iso_supplementaryVD_raw['volume_set_identifier']); + $thisfile_iso_supplementaryVD['publisher_identifier'] = trim($thisfile_iso_supplementaryVD_raw['publisher_identifier']); + $thisfile_iso_supplementaryVD['data_preparer_identifier'] = trim($thisfile_iso_supplementaryVD_raw['data_preparer_identifier']); + $thisfile_iso_supplementaryVD['application_identifier'] = trim($thisfile_iso_supplementaryVD_raw['application_identifier']); + $thisfile_iso_supplementaryVD['copyright_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['copyright_file_identifier']); + $thisfile_iso_supplementaryVD['abstract_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['abstract_file_identifier']); + $thisfile_iso_supplementaryVD['bibliographic_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['bibliographic_file_identifier']); + $thisfile_iso_supplementaryVD['volume_creation_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_creation_date_time']); + $thisfile_iso_supplementaryVD['volume_modification_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_modification_date_time']); + $thisfile_iso_supplementaryVD['volume_expiration_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_expiration_date_time']); + $thisfile_iso_supplementaryVD['volume_effective_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_effective_date_time']); + + if (($thisfile_iso_supplementaryVD_raw['volume_space_size'] * $thisfile_iso_supplementaryVD_raw['logical_block_size']) > $ThisFileInfo['filesize']) { + $ThisFileInfo['error'][] = 'Volume Space Size ('.($thisfile_iso_supplementaryVD_raw['volume_space_size'] * $thisfile_iso_supplementaryVD_raw['logical_block_size']).' bytes) is larger than the file size ('.$ThisFileInfo['filesize'].' bytes) (truncated file?)'; + } + + return true; + } + + + function ParsePathTable($fd, &$ThisFileInfo) { + if (!isset($ThisFileInfo['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']) && !isset($ThisFileInfo['iso']['primary_volume_descriptor']['raw']['path_table_l_location'])) { + return false; + } + if (isset($ThisFileInfo['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location'])) { + $PathTableLocation = $ThisFileInfo['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']; + $PathTableSize = $ThisFileInfo['iso']['supplementary_volume_descriptor']['raw']['path_table_size']; + $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode + } else { + $PathTableLocation = $ThisFileInfo['iso']['primary_volume_descriptor']['raw']['path_table_l_location']; + $PathTableSize = $ThisFileInfo['iso']['primary_volume_descriptor']['raw']['path_table_size']; + $TextEncoding = 'ISO-8859-1'; // Latin-1 + } + + if (($PathTableLocation * 2048) > $ThisFileInfo['filesize']) { + $ThisFileInfo['error'][] = 'Path Table Location specifies an offset ('.($PathTableLocation * 2048).') beyond the end-of-file ('.$ThisFileInfo['filesize'].')'; + return false; + } + + $ThisFileInfo['iso']['path_table']['offset'] = $PathTableLocation * 2048; + fseek($fd, $ThisFileInfo['iso']['path_table']['offset'], SEEK_SET); + $ThisFileInfo['iso']['path_table']['raw'] = fread($fd, $PathTableSize); + + $offset = 0; + $pathcounter = 1; + while ($offset < $PathTableSize) { + // shortcut + $ThisFileInfo['iso']['path_table']['directories'][$pathcounter] = array(); + $thisfile_iso_pathtable_directories_current = &$ThisFileInfo['iso']['path_table']['directories'][$pathcounter]; + + $thisfile_iso_pathtable_directories_current['length'] = getid3_lib::LittleEndian2Int(substr($ThisFileInfo['iso']['path_table']['raw'], $offset, 1)); + $offset += 1; + $thisfile_iso_pathtable_directories_current['extended_length'] = getid3_lib::LittleEndian2Int(substr($ThisFileInfo['iso']['path_table']['raw'], $offset, 1)); + $offset += 1; + $thisfile_iso_pathtable_directories_current['location_logical'] = getid3_lib::LittleEndian2Int(substr($ThisFileInfo['iso']['path_table']['raw'], $offset, 4)); + $offset += 4; + $thisfile_iso_pathtable_directories_current['parent_directory'] = getid3_lib::LittleEndian2Int(substr($ThisFileInfo['iso']['path_table']['raw'], $offset, 2)); + $offset += 2; + $thisfile_iso_pathtable_directories_current['name'] = substr($ThisFileInfo['iso']['path_table']['raw'], $offset, $thisfile_iso_pathtable_directories_current['length']); + $offset += $thisfile_iso_pathtable_directories_current['length'] + ($thisfile_iso_pathtable_directories_current['length'] % 2); + + $thisfile_iso_pathtable_directories_current['name_ascii'] = getid3_lib::iconv_fallback($TextEncoding, $ThisFileInfo['encoding'], $thisfile_iso_pathtable_directories_current['name']); + + $thisfile_iso_pathtable_directories_current['location_bytes'] = $thisfile_iso_pathtable_directories_current['location_logical'] * 2048; + if ($pathcounter == 1) { + $thisfile_iso_pathtable_directories_current['full_path'] = '/'; + } else { + $thisfile_iso_pathtable_directories_current['full_path'] = $ThisFileInfo['iso']['path_table']['directories'][$thisfile_iso_pathtable_directories_current['parent_directory']]['full_path'].$thisfile_iso_pathtable_directories_current['name_ascii'].'/'; + } + $FullPathArray[] = $thisfile_iso_pathtable_directories_current['full_path']; + + $pathcounter++; + } + + return true; + } + + + function ParseDirectoryRecord(&$fd, $directorydata, &$ThisFileInfo) { + if (isset($ThisFileInfo['iso']['supplementary_volume_descriptor'])) { + $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode + } else { + $TextEncoding = 'ISO-8859-1'; // Latin-1 + } + + fseek($fd, $directorydata['location_bytes'], SEEK_SET); + $DirectoryRecordData = fread($fd, 1); + + while (ord($DirectoryRecordData{0}) > 33) { + + $DirectoryRecordData .= fread($fd, ord($DirectoryRecordData{0}) - 1); + + $ThisDirectoryRecord['raw']['length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 0, 1)); + $ThisDirectoryRecord['raw']['extended_attribute_length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 1, 1)); + $ThisDirectoryRecord['raw']['offset_logical'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 2, 4)); + $ThisDirectoryRecord['raw']['filesize'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 10, 4)); + $ThisDirectoryRecord['raw']['recording_date_time'] = substr($DirectoryRecordData, 18, 7); + $ThisDirectoryRecord['raw']['file_flags'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 25, 1)); + $ThisDirectoryRecord['raw']['file_unit_size'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 26, 1)); + $ThisDirectoryRecord['raw']['interleave_gap_size'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 27, 1)); + $ThisDirectoryRecord['raw']['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 28, 2)); + $ThisDirectoryRecord['raw']['file_identifier_length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 32, 1)); + $ThisDirectoryRecord['raw']['file_identifier'] = substr($DirectoryRecordData, 33, $ThisDirectoryRecord['raw']['file_identifier_length']); + + $ThisDirectoryRecord['file_identifier_ascii'] = getid3_lib::iconv_fallback($TextEncoding, $ThisFileInfo['encoding'], $ThisDirectoryRecord['raw']['file_identifier']); + + $ThisDirectoryRecord['filesize'] = $ThisDirectoryRecord['raw']['filesize']; + $ThisDirectoryRecord['offset_bytes'] = $ThisDirectoryRecord['raw']['offset_logical'] * 2048; + $ThisDirectoryRecord['file_flags']['hidden'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x01); + $ThisDirectoryRecord['file_flags']['directory'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x02); + $ThisDirectoryRecord['file_flags']['associated'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x04); + $ThisDirectoryRecord['file_flags']['extended'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x08); + $ThisDirectoryRecord['file_flags']['permissions'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x10); + $ThisDirectoryRecord['file_flags']['multiple'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x80); + $ThisDirectoryRecord['recording_timestamp'] = $this->ISOtime2UNIXtime($ThisDirectoryRecord['raw']['recording_date_time']); + + if ($ThisDirectoryRecord['file_flags']['directory']) { + $ThisDirectoryRecord['filename'] = $directorydata['full_path']; + } else { + $ThisDirectoryRecord['filename'] = $directorydata['full_path'].$this->ISOstripFilenameVersion($ThisDirectoryRecord['file_identifier_ascii']); + $ThisFileInfo['iso']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['iso']['files'], getid3_lib::CreateDeepArray($ThisDirectoryRecord['filename'], '/', $ThisDirectoryRecord['filesize'])); + } + + $DirectoryRecord[] = $ThisDirectoryRecord; + $DirectoryRecordData = fread($fd, 1); + } + + return $DirectoryRecord; + } + + function ISOstripFilenameVersion($ISOfilename) { + // convert 'filename.ext;1' to 'filename.ext' + if (!strstr($ISOfilename, ';')) { + return $ISOfilename; + } else { + return substr($ISOfilename, 0, strpos($ISOfilename, ';')); + } + } + + function ISOtimeText2UNIXtime($ISOtime) { + + $UNIXyear = (int) substr($ISOtime, 0, 4); + $UNIXmonth = (int) substr($ISOtime, 4, 2); + $UNIXday = (int) substr($ISOtime, 6, 2); + $UNIXhour = (int) substr($ISOtime, 8, 2); + $UNIXminute = (int) substr($ISOtime, 10, 2); + $UNIXsecond = (int) substr($ISOtime, 12, 2); + + if (!$UNIXyear) { + return false; + } + return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear); + } + + function ISOtime2UNIXtime($ISOtime) { + // 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) + + $UNIXyear = ord($ISOtime{0}) + 1900; + $UNIXmonth = ord($ISOtime{1}); + $UNIXday = ord($ISOtime{2}); + $UNIXhour = ord($ISOtime{3}); + $UNIXminute = ord($ISOtime{4}); + $UNIXsecond = ord($ISOtime{5}); + $GMToffset = $this->TwosCompliment2Decimal(ord($ISOtime{5})); + + return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear); + } + + function TwosCompliment2Decimal($BinaryValue) { + // http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html + // First check if the number is negative or positive by looking at the sign bit. + // If it is positive, simply convert it to decimal. + // If it is negative, make it positive by inverting the bits and adding one. + // Then, convert the result to decimal. + // The negative of this number is the value of the original binary. + + if ($BinaryValue & 0x80) { + + // negative number + return (0 - ((~$BinaryValue & 0xFF) + 1)); + } else { + // positive number + return $BinaryValue; + } + } + + +} + +?>
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