diff options
Diffstat (limited to 'getid3/module.archive.zip.php')
| -rw-r--r-- | getid3/module.archive.zip.php | 416 |
1 files changed, 0 insertions, 416 deletions
diff --git a/getid3/module.archive.zip.php b/getid3/module.archive.zip.php deleted file mode 100644 index 1d2be06..0000000 --- a/getid3/module.archive.zip.php +++ /dev/null @@ -1,416 +0,0 @@ -<?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.archive.zip.php // -// module for analyzing pkZip files // -// dependencies: NONE // -// /// -///////////////////////////////////////////////////////////////// - - -class getid3_zip -{ - - function getid3_zip(&$fd, &$ThisFileInfo) { - - $ThisFileInfo['fileformat'] = 'zip'; - $ThisFileInfo['zip']['encoding'] = 'ISO-8859-1'; - $ThisFileInfo['zip']['files'] = array(); - - $ThisFileInfo['zip']['compressed_size'] = 0; - $ThisFileInfo['zip']['uncompressed_size'] = 0; - $ThisFileInfo['zip']['entries_count'] = 0; - - if ($ThisFileInfo['filesize'] < pow(2, 31)) { - $EOCDsearchData = ''; - $EOCDsearchCounter = 0; - while ($EOCDsearchCounter++ < 512) { - - fseek($fd, -128 * $EOCDsearchCounter, SEEK_END); - $EOCDsearchData = fread($fd, 128).$EOCDsearchData; - - if (strstr($EOCDsearchData, 'PK'."\x05\x06")) { - - $EOCDposition = strpos($EOCDsearchData, 'PK'."\x05\x06"); - fseek($fd, (-128 * $EOCDsearchCounter) + $EOCDposition, SEEK_END); - $ThisFileInfo['zip']['end_central_directory'] = $this->ZIPparseEndOfCentralDirectory($fd); - - fseek($fd, $ThisFileInfo['zip']['end_central_directory']['directory_offset'], SEEK_SET); - $ThisFileInfo['zip']['entries_count'] = 0; - while ($centraldirectoryentry = $this->ZIPparseCentralDirectory($fd)) { - $ThisFileInfo['zip']['central_directory'][] = $centraldirectoryentry; - $ThisFileInfo['zip']['entries_count']++; - $ThisFileInfo['zip']['compressed_size'] += $centraldirectoryentry['compressed_size']; - $ThisFileInfo['zip']['uncompressed_size'] += $centraldirectoryentry['uncompressed_size']; - - if ($centraldirectoryentry['uncompressed_size'] > 0) { - $ThisFileInfo['zip']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['zip']['files'], getid3_lib::CreateDeepArray($centraldirectoryentry['filename'], '/', $centraldirectoryentry['uncompressed_size'])); - } - } - - if ($ThisFileInfo['zip']['entries_count'] == 0) { - $ThisFileInfo['error'][] = 'No Central Directory entries found (truncated file?)'; - return false; - } - - if (!empty($ThisFileInfo['zip']['end_central_directory']['comment'])) { - $ThisFileInfo['zip']['comments']['comment'][] = $ThisFileInfo['zip']['end_central_directory']['comment']; - } - - if (isset($ThisFileInfo['zip']['central_directory'][0]['compression_method'])) { - $ThisFileInfo['zip']['compression_method'] = $ThisFileInfo['zip']['central_directory'][0]['compression_method']; - } - if (isset($ThisFileInfo['zip']['central_directory'][0]['flags']['compression_speed'])) { - $ThisFileInfo['zip']['compression_speed'] = $ThisFileInfo['zip']['central_directory'][0]['flags']['compression_speed']; - } - if (isset($ThisFileInfo['zip']['compression_method']) && ($ThisFileInfo['zip']['compression_method'] == 'store') && !isset($ThisFileInfo['zip']['compression_speed'])) { - $ThisFileInfo['zip']['compression_speed'] = 'store'; - } - - return true; - - } - } - } - - if ($this->getZIPentriesFilepointer($fd, $ThisFileInfo)) { - - // central directory couldn't be found and/or parsed - // scan through actual file data entries, recover as much as possible from probable trucated file - if ($ThisFileInfo['zip']['compressed_size'] > ($ThisFileInfo['filesize'] - 46 - 22)) { - $ThisFileInfo['error'][] = 'Warning: Truncated file! - Total compressed file sizes ('.$ThisFileInfo['zip']['compressed_size'].' bytes) is greater than filesize minus Central Directory and End Of Central Directory structures ('.($ThisFileInfo['filesize'] - 46 - 22).' bytes)'; - } - $ThisFileInfo['error'][] = 'Cannot find End Of Central Directory - returned list of files in [zip][entries] array may not be complete'; - foreach ($ThisFileInfo['zip']['entries'] as $key => $valuearray) { - $ThisFileInfo['zip']['files'][$valuearray['filename']] = $valuearray['uncompressed_size']; - } - return true; - - } else { - - unset($ThisFileInfo['zip']); - $ThisFileInfo['fileformat'] = ''; - $ThisFileInfo['error'][] = 'Cannot find End Of Central Directory (truncated file?)'; - return false; - - } - } - - - function getZIPHeaderFilepointerTopDown(&$fd, &$ThisFileInfo) { - $ThisFileInfo['fileformat'] = 'zip'; - - $ThisFileInfo['zip']['compressed_size'] = 0; - $ThisFileInfo['zip']['uncompressed_size'] = 0; - $ThisFileInfo['zip']['entries_count'] = 0; - - rewind($fd); - while ($fileentry = $this->ZIPparseLocalFileHeader($fd)) { - $ThisFileInfo['zip']['entries'][] = $fileentry; - $ThisFileInfo['zip']['entries_count']++; - } - if ($ThisFileInfo['zip']['entries_count'] == 0) { - $ThisFileInfo['error'][] = 'No Local File Header entries found'; - return false; - } - - $ThisFileInfo['zip']['entries_count'] = 0; - while ($centraldirectoryentry = $this->ZIPparseCentralDirectory($fd)) { - $ThisFileInfo['zip']['central_directory'][] = $centraldirectoryentry; - $ThisFileInfo['zip']['entries_count']++; - $ThisFileInfo['zip']['compressed_size'] += $centraldirectoryentry['compressed_size']; - $ThisFileInfo['zip']['uncompressed_size'] += $centraldirectoryentry['uncompressed_size']; - } - if ($ThisFileInfo['zip']['entries_count'] == 0) { - $ThisFileInfo['error'][] = 'No Central Directory entries found (truncated file?)'; - return false; - } - - if ($EOCD = $this->ZIPparseEndOfCentralDirectory($fd)) { - $ThisFileInfo['zip']['end_central_directory'] = $EOCD; - } else { - $ThisFileInfo['error'][] = 'No End Of Central Directory entry found (truncated file?)'; - return false; - } - - if (!empty($ThisFileInfo['zip']['end_central_directory']['comment'])) { - $ThisFileInfo['zip']['comments']['comment'][] = $ThisFileInfo['zip']['end_central_directory']['comment']; - } - - return true; - } - - - function getZIPentriesFilepointer(&$fd, &$ThisFileInfo) { - $ThisFileInfo['zip']['compressed_size'] = 0; - $ThisFileInfo['zip']['uncompressed_size'] = 0; - $ThisFileInfo['zip']['entries_count'] = 0; - - rewind($fd); - while ($fileentry = $this->ZIPparseLocalFileHeader($fd)) { - $ThisFileInfo['zip']['entries'][] = $fileentry; - $ThisFileInfo['zip']['entries_count']++; - $ThisFileInfo['zip']['compressed_size'] += $fileentry['compressed_size']; - $ThisFileInfo['zip']['uncompressed_size'] += $fileentry['uncompressed_size']; - } - if ($ThisFileInfo['zip']['entries_count'] == 0) { - $ThisFileInfo['error'][] = 'No Local File Header entries found'; - return false; - } - - return true; - } - - - function ZIPparseLocalFileHeader(&$fd) { - $LocalFileHeader['offset'] = ftell($fd); - - $ZIPlocalFileHeader = fread($fd, 30); - - $LocalFileHeader['raw']['signature'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 0, 4)); - if ($LocalFileHeader['raw']['signature'] != 0x04034B50) { - // invalid Local File Header Signature - fseek($fd, $LocalFileHeader['offset'], SEEK_SET); // seek back to where filepointer originally was so it can be handled properly - return false; - } - $LocalFileHeader['raw']['extract_version'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 4, 2)); - $LocalFileHeader['raw']['general_flags'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 6, 2)); - $LocalFileHeader['raw']['compression_method'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 8, 2)); - $LocalFileHeader['raw']['last_mod_file_time'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 10, 2)); - $LocalFileHeader['raw']['last_mod_file_date'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 12, 2)); - $LocalFileHeader['raw']['crc_32'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 14, 4)); - $LocalFileHeader['raw']['compressed_size'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 18, 4)); - $LocalFileHeader['raw']['uncompressed_size'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 22, 4)); - $LocalFileHeader['raw']['filename_length'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 26, 2)); - $LocalFileHeader['raw']['extra_field_length'] = getid3_lib::LittleEndian2Int(substr($ZIPlocalFileHeader, 28, 2)); - - $LocalFileHeader['extract_version'] = sprintf('%1.1f', $LocalFileHeader['raw']['extract_version'] / 10); - $LocalFileHeader['host_os'] = $this->ZIPversionOSLookup(($LocalFileHeader['raw']['extract_version'] & 0xFF00) >> 8); - $LocalFileHeader['compression_method'] = $this->ZIPcompressionMethodLookup($LocalFileHeader['raw']['compression_method']); - $LocalFileHeader['compressed_size'] = $LocalFileHeader['raw']['compressed_size']; - $LocalFileHeader['uncompressed_size'] = $LocalFileHeader['raw']['uncompressed_size']; - $LocalFileHeader['flags'] = $this->ZIPparseGeneralPurposeFlags($LocalFileHeader['raw']['general_flags'], $LocalFileHeader['raw']['compression_method']); - $LocalFileHeader['last_modified_timestamp'] = $this->DOStime2UNIXtime($LocalFileHeader['raw']['last_mod_file_date'], $LocalFileHeader['raw']['last_mod_file_time']); - - $FilenameExtrafieldLength = $LocalFileHeader['raw']['filename_length'] + $LocalFileHeader['raw']['extra_field_length']; - if ($FilenameExtrafieldLength > 0) { - $ZIPlocalFileHeader .= fread($fd, $FilenameExtrafieldLength); - - if ($LocalFileHeader['raw']['filename_length'] > 0) { - $LocalFileHeader['filename'] = substr($ZIPlocalFileHeader, 30, $LocalFileHeader['raw']['filename_length']); - } - if ($LocalFileHeader['raw']['extra_field_length'] > 0) { - $LocalFileHeader['raw']['extra_field_data'] = substr($ZIPlocalFileHeader, 30 + $LocalFileHeader['raw']['filename_length'], $LocalFileHeader['raw']['extra_field_length']); - } - } - - $LocalFileHeader['data_offset'] = ftell($fd); - //$LocalFileHeader['compressed_data'] = fread($fd, $LocalFileHeader['raw']['compressed_size']); - fseek($fd, $LocalFileHeader['raw']['compressed_size'], SEEK_CUR); - - if ($LocalFileHeader['flags']['data_descriptor_used']) { - $DataDescriptor = fread($fd, 12); - $LocalFileHeader['data_descriptor']['crc_32'] = getid3_lib::LittleEndian2Int(substr($DataDescriptor, 0, 4)); - $LocalFileHeader['data_descriptor']['compressed_size'] = getid3_lib::LittleEndian2Int(substr($DataDescriptor, 4, 4)); - $LocalFileHeader['data_descriptor']['uncompressed_size'] = getid3_lib::LittleEndian2Int(substr($DataDescriptor, 8, 4)); - } - - return $LocalFileHeader; - } - - - function ZIPparseCentralDirectory(&$fd) { - $CentralDirectory['offset'] = ftell($fd); - - $ZIPcentralDirectory = fread($fd, 46); - - $CentralDirectory['raw']['signature'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 0, 4)); - if ($CentralDirectory['raw']['signature'] != 0x02014B50) { - // invalid Central Directory Signature - fseek($fd, $CentralDirectory['offset'], SEEK_SET); // seek back to where filepointer originally was so it can be handled properly - return false; - } - $CentralDirectory['raw']['create_version'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 4, 2)); - $CentralDirectory['raw']['extract_version'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 6, 2)); - $CentralDirectory['raw']['general_flags'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 8, 2)); - $CentralDirectory['raw']['compression_method'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 10, 2)); - $CentralDirectory['raw']['last_mod_file_time'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 12, 2)); - $CentralDirectory['raw']['last_mod_file_date'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 14, 2)); - $CentralDirectory['raw']['crc_32'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 16, 4)); - $CentralDirectory['raw']['compressed_size'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 20, 4)); - $CentralDirectory['raw']['uncompressed_size'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 24, 4)); - $CentralDirectory['raw']['filename_length'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 28, 2)); - $CentralDirectory['raw']['extra_field_length'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 30, 2)); - $CentralDirectory['raw']['file_comment_length'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 32, 2)); - $CentralDirectory['raw']['disk_number_start'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 34, 2)); - $CentralDirectory['raw']['internal_file_attrib'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 36, 2)); - $CentralDirectory['raw']['external_file_attrib'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 38, 4)); - $CentralDirectory['raw']['local_header_offset'] = getid3_lib::LittleEndian2Int(substr($ZIPcentralDirectory, 42, 4)); - - $CentralDirectory['entry_offset'] = $CentralDirectory['raw']['local_header_offset']; - $CentralDirectory['create_version'] = sprintf('%1.1f', $CentralDirectory['raw']['create_version'] / 10); - $CentralDirectory['extract_version'] = sprintf('%1.1f', $CentralDirectory['raw']['extract_version'] / 10); - $CentralDirectory['host_os'] = $this->ZIPversionOSLookup(($CentralDirectory['raw']['extract_version'] & 0xFF00) >> 8); - $CentralDirectory['compression_method'] = $this->ZIPcompressionMethodLookup($CentralDirectory['raw']['compression_method']); - $CentralDirectory['compressed_size'] = $CentralDirectory['raw']['compressed_size']; - $CentralDirectory['uncompressed_size'] = $CentralDirectory['raw']['uncompressed_size']; - $CentralDirectory['flags'] = $this->ZIPparseGeneralPurposeFlags($CentralDirectory['raw']['general_flags'], $CentralDirectory['raw']['compression_method']); - $CentralDirectory['last_modified_timestamp'] = $this->DOStime2UNIXtime($CentralDirectory['raw']['last_mod_file_date'], $CentralDirectory['raw']['last_mod_file_time']); - - $FilenameExtrafieldCommentLength = $CentralDirectory['raw']['filename_length'] + $CentralDirectory['raw']['extra_field_length'] + $CentralDirectory['raw']['file_comment_length']; - if ($FilenameExtrafieldCommentLength > 0) { - $FilenameExtrafieldComment = fread($fd, $FilenameExtrafieldCommentLength); - - if ($CentralDirectory['raw']['filename_length'] > 0) { - $CentralDirectory['filename'] = substr($FilenameExtrafieldComment, 0, $CentralDirectory['raw']['filename_length']); - } - if ($CentralDirectory['raw']['extra_field_length'] > 0) { - $CentralDirectory['raw']['extra_field_data'] = substr($FilenameExtrafieldComment, $CentralDirectory['raw']['filename_length'], $CentralDirectory['raw']['extra_field_length']); - } - if ($CentralDirectory['raw']['file_comment_length'] > 0) { - $CentralDirectory['file_comment'] = substr($FilenameExtrafieldComment, $CentralDirectory['raw']['filename_length'] + $CentralDirectory['raw']['extra_field_length'], $CentralDirectory['raw']['file_comment_length']); - } - } - - return $CentralDirectory; - } - - function ZIPparseEndOfCentralDirectory(&$fd) { - $EndOfCentralDirectory['offset'] = ftell($fd); - - $ZIPendOfCentralDirectory = fread($fd, 22); - - $EndOfCentralDirectory['signature'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 0, 4)); - if ($EndOfCentralDirectory['signature'] != 0x06054B50) { - // invalid End Of Central Directory Signature - fseek($fd, $EndOfCentralDirectory['offset'], SEEK_SET); // seek back to where filepointer originally was so it can be handled properly - return false; - } - $EndOfCentralDirectory['disk_number_current'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 4, 2)); - $EndOfCentralDirectory['disk_number_start_directory'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 6, 2)); - $EndOfCentralDirectory['directory_entries_this_disk'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 8, 2)); - $EndOfCentralDirectory['directory_entries_total'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 10, 2)); - $EndOfCentralDirectory['directory_size'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 12, 4)); - $EndOfCentralDirectory['directory_offset'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 16, 4)); - $EndOfCentralDirectory['comment_length'] = getid3_lib::LittleEndian2Int(substr($ZIPendOfCentralDirectory, 20, 2)); - - if ($EndOfCentralDirectory['comment_length'] > 0) { - $EndOfCentralDirectory['comment'] = fread($fd, $EndOfCentralDirectory['comment_length']); - } - - return $EndOfCentralDirectory; - } - - - function ZIPparseGeneralPurposeFlags($flagbytes, $compressionmethod) { - $ParsedFlags['encrypted'] = (bool) ($flagbytes & 0x0001); - - switch ($compressionmethod) { - case 6: - $ParsedFlags['dictionary_size'] = (($flagbytes & 0x0002) ? 8192 : 4096); - $ParsedFlags['shannon_fano_trees'] = (($flagbytes & 0x0004) ? 3 : 2); - break; - - case 8: - case 9: - switch (($flagbytes & 0x0006) >> 1) { - case 0: - $ParsedFlags['compression_speed'] = 'normal'; - break; - case 1: - $ParsedFlags['compression_speed'] = 'maximum'; - break; - case 2: - $ParsedFlags['compression_speed'] = 'fast'; - break; - case 3: - $ParsedFlags['compression_speed'] = 'superfast'; - break; - } - break; - } - $ParsedFlags['data_descriptor_used'] = (bool) ($flagbytes & 0x0008); - - return $ParsedFlags; - } - - - function ZIPversionOSLookup($index) { - static $ZIPversionOSLookup = array( - 0 => 'MS-DOS and OS/2 (FAT / VFAT / FAT32 file systems)', - 1 => 'Amiga', - 2 => 'OpenVMS', - 3 => 'Unix', - 4 => 'VM/CMS', - 5 => 'Atari ST', - 6 => 'OS/2 H.P.F.S.', - 7 => 'Macintosh', - 8 => 'Z-System', - 9 => 'CP/M', - 10 => 'Windows NTFS', - 11 => 'MVS', - 12 => 'VSE', - 13 => 'Acorn Risc', - 14 => 'VFAT', - 15 => 'Alternate MVS', - 16 => 'BeOS', - 17 => 'Tandem' - ); - - return (isset($ZIPversionOSLookup[$index]) ? $ZIPversionOSLookup[$index] : '[unknown]'); - } - - function ZIPcompressionMethodLookup($index) { - static $ZIPcompressionMethodLookup = array( - 0 => 'store', - 1 => 'shrink', - 2 => 'reduce-1', - 3 => 'reduce-2', - 4 => 'reduce-3', - 5 => 'reduce-4', - 6 => 'implode', - 7 => 'tokenize', - 8 => 'deflate', - 9 => 'deflate64', - 10 => 'PKWARE Date Compression Library Imploding' - ); - - return (isset($ZIPcompressionMethodLookup[$index]) ? $ZIPcompressionMethodLookup[$index] : '[unknown]'); - } - - function DOStime2UNIXtime($DOSdate, $DOStime) { - // wFatDate - // Specifies the MS-DOS date. The date is a packed 16-bit value with the following format: - // Bits Contents - // 0-4 Day of the month (1-31) - // 5-8 Month (1 = January, 2 = February, and so on) - // 9-15 Year offset from 1980 (add 1980 to get actual year) - - $UNIXday = ($DOSdate & 0x001F); - $UNIXmonth = (($DOSdate & 0x01E0) >> 5); - $UNIXyear = (($DOSdate & 0xFE00) >> 9) + 1980; - - // wFatTime - // Specifies the MS-DOS time. The time is a packed 16-bit value with the following format: - // Bits Contents - // 0-4 Second divided by 2 - // 5-10 Minute (0-59) - // 11-15 Hour (0-23 on a 24-hour clock) - - $UNIXsecond = ($DOStime & 0x001F) * 2; - $UNIXminute = (($DOStime & 0x07E0) >> 5); - $UNIXhour = (($DOStime & 0xF800) >> 11); - - return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear); - } - -} - - -?>
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