diff options
Diffstat (limited to 'getid3/module.archive.gzip.php')
-rw-r--r-- | getid3/module.archive.gzip.php | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/getid3/module.archive.gzip.php b/getid3/module.archive.gzip.php deleted file mode 100644 index 7e9376f..0000000 --- a/getid3/module.archive.gzip.php +++ /dev/null @@ -1,271 +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.gzip.php // -// module for analyzing GZIP files // -// dependencies: NONE // -// /// -///////////////////////////////////////////////////////////////// -// // -// Module originally written by // -// Mike Mozolin <teddybearØmail*ru> // -// // -///////////////////////////////////////////////////////////////// - - -class getid3_gzip { - - // public: Optional file list - disable for speed. - var $option_gzip_parse_contents = false; // decode gzipped files, if possible, and parse recursively (.tar.gz for example) - - function getid3_gzip(&$fd, &$ThisFileInfo) { - $ThisFileInfo['fileformat'] = 'gzip'; - - $start_length = 10; - $unpack_header = 'a1id1/a1id2/a1cmethod/a1flags/a4mtime/a1xflags/a1os'; - //+---+---+---+---+---+---+---+---+---+---+ - //|ID1|ID2|CM |FLG| MTIME |XFL|OS | - //+---+---+---+---+---+---+---+---+---+---+ - @fseek($fd, 0); - $buffer = @fread($fd, $ThisFileInfo['filesize']); - - $arr_members = explode("\x1F\x8B\x08", $buffer); - while (true) { - $is_wrong_members = false; - $num_members = intval(count($arr_members)); - for ($i = 0; $i < $num_members; $i++) { - if (strlen($arr_members[$i]) == 0) { - continue; - } - $buf = "\x1F\x8B\x08".$arr_members[$i]; - - $attr = unpack($unpack_header, substr($buf, 0, $start_length)); - if (!$this->get_os_type(ord($attr['os']))) { - // Merge member with previous if wrong OS type - $arr_members[$i - 1] .= $buf; - $arr_members[$i] = ''; - $is_wrong_members = true; - continue; - } - } - if (!$is_wrong_members) { - break; - } - } - - $ThisFileInfo['gzip']['files'] = array(); - - $fpointer = 0; - $idx = 0; - for ($i = 0; $i < $num_members; $i++) { - if (strlen($arr_members[$i]) == 0) { - continue; - } - $thisThisFileInfo = &$ThisFileInfo['gzip']['member_header'][++$idx]; - - $buff = "\x1F\x8B\x08".$arr_members[$i]; - - $attr = unpack($unpack_header, substr($buff, 0, $start_length)); - $thisThisFileInfo['filemtime'] = getid3_lib::LittleEndian2Int($attr['mtime']); - $thisThisFileInfo['raw']['id1'] = ord($attr['cmethod']); - $thisThisFileInfo['raw']['id2'] = ord($attr['cmethod']); - $thisThisFileInfo['raw']['cmethod'] = ord($attr['cmethod']); - $thisThisFileInfo['raw']['os'] = ord($attr['os']); - $thisThisFileInfo['raw']['xflags'] = ord($attr['xflags']); - $thisThisFileInfo['raw']['flags'] = ord($attr['flags']); - - $thisThisFileInfo['flags']['crc16'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x02); - $thisThisFileInfo['flags']['extra'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x04); - $thisThisFileInfo['flags']['filename'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x08); - $thisThisFileInfo['flags']['comment'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x10); - - $thisThisFileInfo['compression'] = $this->get_xflag_type($thisThisFileInfo['raw']['xflags']); - - $thisThisFileInfo['os'] = $this->get_os_type($thisThisFileInfo['raw']['os']); - if (!$thisThisFileInfo['os']) { - $ThisFileInfo['error'][] = 'Read error on gzip file'; - return false; - } - - $fpointer = 10; - $arr_xsubfield = array(); - // bit 2 - FLG.FEXTRA - //+---+---+=================================+ - //| XLEN |...XLEN bytes of "extra field"...| - //+---+---+=================================+ - if ($thisThisFileInfo['flags']['extra']) { - $w_xlen = substr($buff, $fpointer, 2); - $xlen = getid3_lib::LittleEndian2Int($w_xlen); - $fpointer += 2; - - $thisThisFileInfo['raw']['xfield'] = substr($buff, $fpointer, $xlen); - // Extra SubFields - //+---+---+---+---+==================================+ - //|SI1|SI2| LEN |... LEN bytes of subfield data ...| - //+---+---+---+---+==================================+ - $idx = 0; - while (true) { - if ($idx >= $xlen) { - break; - } - $si1 = ord(substr($buff, $fpointer + $idx++, 1)); - $si2 = ord(substr($buff, $fpointer + $idx++, 1)); - if (($si1 == 0x41) && ($si2 == 0x70)) { - $w_xsublen = substr($buff, $fpointer + $idx, 2); - $xsublen = getid3_lib::LittleEndian2Int($w_xsublen); - $idx += 2; - $arr_xsubfield[] = substr($buff, $fpointer + $idx, $xsublen); - $idx += $xsublen; - } else { - break; - } - } - $fpointer += $xlen; - } - // bit 3 - FLG.FNAME - //+=========================================+ - //|...original file name, zero-terminated...| - //+=========================================+ - // GZIP files may have only one file, with no filename, so assume original filename is current filename without .gz - $thisThisFileInfo['filename'] = eregi_replace('.gz$', '', $ThisFileInfo['filename']); - if ($thisThisFileInfo['flags']['filename']) { - while (true) { - if (ord($buff[$fpointer]) == 0) { - $fpointer++; - break; - } - $thisThisFileInfo['filename'] .= $buff[$fpointer]; - $fpointer++; - } - } - // bit 4 - FLG.FCOMMENT - //+===================================+ - //|...file comment, zero-terminated...| - //+===================================+ - if ($thisThisFileInfo['flags']['comment']) { - while (true) { - if (ord($buff[$fpointer]) == 0) { - $fpointer++; - break; - } - $thisThisFileInfo['comment'] .= $buff[$fpointer]; - $fpointer++; - } - } - // bit 1 - FLG.FHCRC - //+---+---+ - //| CRC16 | - //+---+---+ - if ($thisThisFileInfo['flags']['crc16']) { - $w_crc = substr($buff, $fpointer, 2); - $thisThisFileInfo['crc16'] = getid3_lib::LittleEndian2Int($w_crc); - $fpointer += 2; - } - // bit 0 - FLG.FTEXT - //if ($thisThisFileInfo['raw']['flags'] & 0x01) { - // Ignored... - //} - // bits 5, 6, 7 - reserved - - $thisThisFileInfo['crc32'] = getid3_lib::LittleEndian2Int(substr($buff, strlen($buff) - 8, 4)); - $thisThisFileInfo['filesize'] = getid3_lib::LittleEndian2Int(substr($buff, strlen($buff) - 4)); - - $ThisFileInfo['gzip']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['gzip']['files'], getid3_lib::CreateDeepArray($thisThisFileInfo['filename'], '/', $thisThisFileInfo['filesize'])); - - if ($this->option_gzip_parse_contents) { - // Try to inflate GZip - $csize = 0; - $inflated = ''; - $chkcrc32 = ''; - if (function_exists('gzinflate')) { - $cdata = substr($buff, $fpointer); - $cdata = substr($cdata, 0, strlen($cdata) - 8); - $csize = strlen($cdata); - $inflated = gzinflate($cdata); - - // Calculate CRC32 for inflated content - $thisThisFileInfo['crc32_valid'] = (bool) (sprintf('%u', crc32($inflated)) == $thisThisFileInfo['crc32']); - - // determine format - $formattest = substr($inflated, 0, 32774); - $newgetID3 = new getID3(); - $determined_format = $newgetID3->GetFileFormat($formattest); - unset($newgetID3); - - // file format is determined - switch (@$determined_format['module']) { - case 'tar': - // view TAR-file info - if (file_exists(GETID3_INCLUDEPATH.$determined_format['include']) && @include_once(GETID3_INCLUDEPATH.$determined_format['include'])) { - if (($temp_tar_filename = tempnam('*', 'getID3')) === false) { - // can't find anywhere to create a temp file, abort - $ThisFileInfo['error'][] = 'Unable to create temp file to parse TAR inside GZIP file'; - break; - } - if ($fp_temp_tar = fopen($temp_tar_filename, 'w+b')) { - fwrite($fp_temp_tar, $inflated); - rewind($fp_temp_tar); - $getid3_tar = new getid3_tar($fp_temp_tar, $dummy); - $ThisFileInfo['gzip']['member_header'][$idx]['tar'] = $dummy['tar']; - unset($dummy); - unset($getid3_tar); - fclose($fp_temp_tar); - unlink($temp_tar_filename); - } else { - $ThisFileInfo['error'][] = 'Unable to fopen() temp file to parse TAR inside GZIP file'; - break; - } - } - break; - - case '': - default: - // unknown or unhandled format - break; - } - } - } - } - return true; - } - - // Converts the OS type - function get_os_type($key) { - static $os_type = array( - '0' => 'FAT filesystem (MS-DOS, OS/2, NT/Win32)', - '1' => 'Amiga', - '2' => 'VMS (or OpenVMS)', - '3' => 'Unix', - '4' => 'VM/CMS', - '5' => 'Atari TOS', - '6' => 'HPFS filesystem (OS/2, NT)', - '7' => 'Macintosh', - '8' => 'Z-System', - '9' => 'CP/M', - '10' => 'TOPS-20', - '11' => 'NTFS filesystem (NT)', - '12' => 'QDOS', - '13' => 'Acorn RISCOS', - '255' => 'unknown' - ); - return @$os_type[$key]; - } - - // Converts the eXtra FLags - function get_xflag_type($key) { - static $xflag_type = array( - '0' => 'unknown', - '2' => 'maximum compression', - '4' => 'fastest algorithm' - ); - return @$xflag_type[$key]; - } -} - -?> |