Mercurial > judyates
view e2gallerypro/e2upload/Backend/Assets/getid3/module.archive.zip.php @ 12:2f433df9b961 judyates
[svn r13] Modified esgallery source to enable multiple paypal buttons; got the photo gallery operational and tested.
| author | rlm |
|---|---|
| date | Mon, 12 Apr 2010 03:24:08 -0400 |
| parents | 3f6b44aa6b35 |
| children |
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1 <?php2 // +----------------------------------------------------------------------+3 // | PHP version 5 |4 // +----------------------------------------------------------------------+5 // | Copyright (c) 2002-2006 James Heinrich, Allan Hansen |6 // +----------------------------------------------------------------------+7 // | This source file is subject to version 2 of the GPL license, |8 // | that is bundled with this package in the file license.txt and is |9 // | available through the world-wide-web at the following url: |10 // | http://www.gnu.org/copyleft/gpl.html |11 // +----------------------------------------------------------------------+12 // | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |13 // +----------------------------------------------------------------------+14 // | Authors: James Heinrich <infoØgetid3*org> |15 // | Allan Hansen <ahØartemis*dk> |16 // +----------------------------------------------------------------------+17 // | module.archive.zip.php |18 // | Module for analyzing pkZip files |19 // | dependencies: NONE |20 // +----------------------------------------------------------------------+21 //22 // $Id: module.archive.zip.php,v 1.4 2006/11/02 10:48:00 ah Exp $26 class getid3_zip extends getid3_handler27 {29 public function Analyze() {31 $getid3 = $this->getid3;33 $getid3->info['zip'] = array ();34 $info_zip = &$getid3->info['zip'];36 $getid3->info['fileformat'] = 'zip';38 $info_zip['encoding'] = 'ISO-8859-1';39 $info_zip['files'] = array ();40 $info_zip['compressed_size'] = $info_zip['uncompressed_size'] = $info_zip['entries_count'] = 0;42 $eocd_search_data = '';43 $eocd_search_counter = 0;44 while ($eocd_search_counter++ < 512) {46 fseek($getid3->fp, -128 * $eocd_search_counter, SEEK_END);47 $eocd_search_data = fread($getid3->fp, 128).$eocd_search_data;49 if (strstr($eocd_search_data, 'PK'."\x05\x06")) {51 $eocd_position = strpos($eocd_search_data, 'PK'."\x05\x06");52 fseek($getid3->fp, (-128 * $eocd_search_counter) + $eocd_position, SEEK_END);53 $info_zip['end_central_directory'] = $this->ZIPparseEndOfCentralDirectory();55 fseek($getid3->fp, $info_zip['end_central_directory']['directory_offset'], SEEK_SET);56 $info_zip['entries_count'] = 0;57 while ($central_directoryentry = $this->ZIPparseCentralDirectory($getid3->fp)) {58 $info_zip['central_directory'][] = $central_directoryentry;59 $info_zip['entries_count']++;60 $info_zip['compressed_size'] += $central_directoryentry['compressed_size'];61 $info_zip['uncompressed_size'] += $central_directoryentry['uncompressed_size'];63 if ($central_directoryentry['uncompressed_size'] > 0) {64 $info_zip['files'] = getid3_zip::array_merge_clobber($info_zip['files'], getid3_zip::CreateDeepArray($central_directoryentry['filename'], '/', $central_directoryentry['uncompressed_size']));65 }66 }68 if ($info_zip['entries_count'] == 0) {69 throw new getid3_exception('No Central Directory entries found (truncated file?)');70 }72 if (!empty($info_zip['end_central_directory']['comment'])) {73 $info_zip['comments']['comment'][] = $info_zip['end_central_directory']['comment'];74 }76 if (isset($info_zip['central_directory'][0]['compression_method'])) {77 $info_zip['compression_method'] = $info_zip['central_directory'][0]['compression_method'];78 }79 if (isset($info_zip['central_directory'][0]['flags']['compression_speed'])) {80 $info_zip['compression_speed'] = $info_zip['central_directory'][0]['flags']['compression_speed'];81 }82 if (isset($info_zip['compression_method']) && ($info_zip['compression_method'] == 'store') && !isset($info_zip['compression_speed'])) {83 $info_zip['compression_speed'] = 'store';84 }86 return true;87 }88 }90 if ($this->getZIPentriesFilepointer()) {92 // central directory couldn't be found and/or parsed93 // scan through actual file data entries, recover as much as possible from probable trucated file94 if (@$info_zip['compressed_size'] > ($getid3->info['filesize'] - 46 - 22)) {95 throw new getid3_exception('Warning: Truncated file! - Total compressed file sizes ('.$info_zip['compressed_size'].' bytes) is greater than filesize minus Central Directory and End Of Central Directory structures ('.($getid3->info['filesize'] - 46 - 22).' bytes)');96 }97 throw new getid3_exception('Cannot find End Of Central Directory - returned list of files in [zip][entries] array may not be complete');98 }100 //throw new getid3_exception('Cannot find End Of Central Directory (truncated file?)');101 }105 private function getZIPHeaderFilepointerTopDown() {107 // shortcut108 $getid3 = $this->getid3;110 $getid3->info['fileformat'] = 'zip';112 $getid3->info['zip'] = array ();113 $info_zip['compressed_size'] = $info_zip['uncompressed_size'] = $info_zip['entries_count'] = 0;115 rewind($getid3->fp);116 while ($fileentry = $this->ZIPparseLocalFileHeader()) {117 $info_zip['entries'][] = $fileentry;118 $info_zip['entries_count']++;119 }120 if ($info_zip['entries_count'] == 0) {121 throw new getid3_exception('No Local File Header entries found');122 }124 $info_zip['entries_count'] = 0;125 while ($central_directoryentry = $this->ZIPparseCentralDirectory($getid3->fp)) {126 $info_zip['central_directory'][] = $central_directoryentry;127 $info_zip['entries_count']++;128 $info_zip['compressed_size'] += $central_directoryentry['compressed_size'];129 $info_zip['uncompressed_size'] += $central_directoryentry['uncompressed_size'];130 }131 if ($info_zip['entries_count'] == 0) {132 throw new getid3_exception('No Central Directory entries found (truncated file?)');133 }135 if ($eocd = $this->ZIPparseEndOfCentralDirectory()) {136 $info_zip['end_central_directory'] = $eocd;137 } else {138 throw new getid3_exception('No End Of Central Directory entry found (truncated file?)');139 }141 if (!@$info_zip['end_central_directory']['comment']) {142 $info_zip['comments']['comment'][] = $info_zip['end_central_directory']['comment'];143 }145 return true;146 }150 private function getZIPentriesFilepointer() {152 // shortcut153 $getid3 = $this->getid3;155 $getid3->info['zip'] = array ();156 $info_zip['compressed_size'] = $info_zip['uncompressed_size'] = $info_zip['entries_count'] = 0;158 rewind($getid3->fp);159 while ($fileentry = $this->ZIPparseLocalFileHeader($getid3->fp)) {160 $info_zip['entries'][] = $fileentry;161 $info_zip['entries_count']++;162 $info_zip['compressed_size'] += $fileentry['compressed_size'];163 $info_zip['uncompressed_size'] += $fileentry['uncompressed_size'];164 }165 if ($info_zip['entries_count'] == 0) {166 throw new getid3_exception('No Local File Header entries found');167 }169 return true;170 }174 private function ZIPparseLocalFileHeader() {176 // shortcut177 $getid3 = $this->getid3;179 $local_file_header['offset'] = ftell($getid3->fp);181 $zip_local_file_header = fread($getid3->fp, 30);183 $local_file_header['raw']['signature'] = getid3_lib::LittleEndian2Int(substr($zip_local_file_header, 0, 4));185 // Invalid Local File Header Signature186 if ($local_file_header['raw']['signature'] != 0x04034B50) {187 fseek($getid3->fp, $local_file_header['offset'], SEEK_SET); // seek back to where filepointer originally was so it can be handled properly188 return false;189 }191 getid3_lib::ReadSequence('LittleEndian2Int', $local_file_header['raw'], $zip_local_file_header, 4,192 array (193 'extract_version' => 2,194 'general_flags' => 2,195 'compression_method' => 2,196 'last_mod_file_time' => 2,197 'last_mod_file_date' => 2,198 'crc_32' => 2,199 'compressed_size' => 2,200 'uncompressed_size' => 2,201 'filename_length' => 2,202 'extra_field_length' => 2203 )204 );206 $local_file_header['extract_version'] = sprintf('%1.1f', $local_file_header['raw']['extract_version'] / 10);207 $local_file_header['host_os'] = $this->ZIPversionOSLookup(($local_file_header['raw']['extract_version'] & 0xFF00) >> 8);208 $local_file_header['compression_method'] = $this->ZIPcompressionMethodLookup($local_file_header['raw']['compression_method']);209 $local_file_header['compressed_size'] = $local_file_header['raw']['compressed_size'];210 $local_file_header['uncompressed_size'] = $local_file_header['raw']['uncompressed_size'];211 $local_file_header['flags'] = $this->ZIPparseGeneralPurposeFlags($local_file_header['raw']['general_flags'], $local_file_header['raw']['compression_method']);212 $local_file_header['last_modified_timestamp'] = $this->DOStime2UNIXtime($local_file_header['raw']['last_mod_file_date'], $local_file_header['raw']['last_mod_file_time']);214 $filename_extra_field_length = $local_file_header['raw']['filename_length'] + $local_file_header['raw']['extra_field_length'];215 if ($filename_extra_field_length > 0) {216 $zip_local_file_header .= fread($getid3->fp, $filename_extra_field_length);218 if ($local_file_header['raw']['filename_length'] > 0) {219 $local_file_header['filename'] = substr($zip_local_file_header, 30, $local_file_header['raw']['filename_length']);220 }221 if ($local_file_header['raw']['extra_field_length'] > 0) {222 $local_file_header['raw']['extra_field_data'] = substr($zip_local_file_header, 30 + $local_file_header['raw']['filename_length'], $local_file_header['raw']['extra_field_length']);223 }224 }226 $local_file_header['data_offset'] = ftell($getid3->fp);227 fseek($getid3->fp, $local_file_header['raw']['compressed_size'], SEEK_CUR);229 if ($local_file_header['flags']['data_descriptor_used']) {230 $data_descriptor = fread($getid3->fp, 12);232 getid3_lib::ReadSequence('LittleEndian2Int', $local_file_header['data_descriptor'], $data_descriptor, 0,233 array (234 'crc_32' => 4,235 'compressed_size' => 4,236 'uncompressed_size' => 4237 )238 );239 }241 return $local_file_header;242 }246 private function ZIPparseCentralDirectory() {248 // shortcut249 $getid3 = $this->getid3;251 $central_directory['offset'] = ftell($getid3->fp);253 $zip_central_directory = fread($getid3->fp, 46);255 $central_directory['raw']['signature'] = getid3_lib::LittleEndian2Int(substr($zip_central_directory, 0, 4));257 // invalid Central Directory Signature258 if ($central_directory['raw']['signature'] != 0x02014B50) {259 fseek($getid3->fp, $central_directory['offset'], SEEK_SET); // seek back to where filepointer originally was so it can be handled properly260 return false;261 }263 getid3_lib::ReadSequence('LittleEndian2Int', $central_directory['raw'], $zip_central_directory, 4,264 array (265 'create_version' => 2,266 'extract_version' => 2,267 'general_flags' => 2,268 'compression_method' => 2,269 'last_mod_file_time' => 2,270 'last_mod_file_date' => 2,271 'crc_32' => 4,272 'compressed_size' => 4,273 'uncompressed_size' => 4,274 'filename_length' => 2,275 'extra_field_length' => 2,276 'file_comment_length' => 2,277 'disk_number_start' => 2,278 'internal_file_attrib' => 2,279 'external_file_attrib' => 4,280 'local_header_offset' => 4281 )282 );284 $central_directory['entry_offset'] = $central_directory['raw']['local_header_offset'];285 $central_directory['create_version'] = sprintf('%1.1f', $central_directory['raw']['create_version'] / 10);286 $central_directory['extract_version'] = sprintf('%1.1f', $central_directory['raw']['extract_version'] / 10);287 $central_directory['host_os'] = $this->ZIPversionOSLookup(($central_directory['raw']['extract_version'] & 0xFF00) >> 8);288 $central_directory['compression_method'] = $this->ZIPcompressionMethodLookup($central_directory['raw']['compression_method']);289 $central_directory['compressed_size'] = $central_directory['raw']['compressed_size'];290 $central_directory['uncompressed_size'] = $central_directory['raw']['uncompressed_size'];291 $central_directory['flags'] = $this->ZIPparseGeneralPurposeFlags($central_directory['raw']['general_flags'], $central_directory['raw']['compression_method']);292 $central_directory['last_modified_timestamp'] = $this->DOStime2UNIXtime($central_directory['raw']['last_mod_file_date'], $central_directory['raw']['last_mod_file_time']);294 $filename_extra_field_comment_length = $central_directory['raw']['filename_length'] + $central_directory['raw']['extra_field_length'] + $central_directory['raw']['file_comment_length'];295 if ($filename_extra_field_comment_length > 0) {296 $filename_extra_field_comment = fread($getid3->fp, $filename_extra_field_comment_length);298 if ($central_directory['raw']['filename_length'] > 0) {299 $central_directory['filename']= substr($filename_extra_field_comment, 0, $central_directory['raw']['filename_length']);300 }301 if ($central_directory['raw']['extra_field_length'] > 0) {302 $central_directory['raw']['extra_field_data'] = substr($filename_extra_field_comment, $central_directory['raw']['filename_length'], $central_directory['raw']['extra_field_length']);303 }304 if ($central_directory['raw']['file_comment_length'] > 0) {305 $central_directory['file_comment'] = substr($filename_extra_field_comment, $central_directory['raw']['filename_length'] + $central_directory['raw']['extra_field_length'], $central_directory['raw']['file_comment_length']);306 }307 }309 return $central_directory;310 }314 private function ZIPparseEndOfCentralDirectory() {316 // shortcut317 $getid3 = $this->getid3;319 $end_of_central_directory['offset'] = ftell($getid3->fp);321 $zip_end_of_central_directory = fread($getid3->fp, 22);323 $end_of_central_directory['signature'] = getid3_lib::LittleEndian2Int(substr($zip_end_of_central_directory, 0, 4));325 // invalid End Of Central Directory Signature326 if ($end_of_central_directory['signature'] != 0x06054B50) {327 fseek($getid3->fp, $end_of_central_directory['offset'], SEEK_SET); // seek back to where filepointer originally was so it can be handled properly328 return false;329 }331 getid3_lib::ReadSequence('LittleEndian2Int', $end_of_central_directory, $zip_end_of_central_directory, 4,332 array (333 'disk_number_current' => 2,334 'disk_number_start_directory' => 2,335 'directory_entries_this_disk' => 2,336 'directory_entries_total' => 2,337 'directory_size' => 4,338 'directory_offset' => 4,339 'comment_length' => 2340 )341 );343 if ($end_of_central_directory['comment_length'] > 0) {344 $end_of_central_directory['comment'] = fread($getid3->fp, $end_of_central_directory['comment_length']);345 }347 return $end_of_central_directory;348 }352 public static function ZIPparseGeneralPurposeFlags($flag_bytes, $compression_method) {354 $parsed_flags['encrypted'] = (bool)($flag_bytes & 0x0001);356 switch ($compression_method) {357 case 6:358 $parsed_flags['dictionary_size'] = (($flag_bytes & 0x0002) ? 8192 : 4096);359 $parsed_flags['shannon_fano_trees'] = (($flag_bytes & 0x0004) ? 3 : 2);360 break;362 case 8:363 case 9:364 switch (($flag_bytes & 0x0006) >> 1) {365 case 0:366 $parsed_flags['compression_speed'] = 'normal';367 break;368 case 1:369 $parsed_flags['compression_speed'] = 'maximum';370 break;371 case 2:372 $parsed_flags['compression_speed'] = 'fast';373 break;374 case 3:375 $parsed_flags['compression_speed'] = 'superfast';376 break;377 }378 break;379 }380 $parsed_flags['data_descriptor_used'] = (bool)($flag_bytes & 0x0008);382 return $parsed_flags;383 }387 public static function ZIPversionOSLookup($index) {389 static $lookup = array (390 0 => 'MS-DOS and OS/2 (FAT / VFAT / FAT32 file systems)',391 1 => 'Amiga',392 2 => 'OpenVMS',393 3 => 'Unix',394 4 => 'VM/CMS',395 5 => 'Atari ST',396 6 => 'OS/2 H.P.F.S.',397 7 => 'Macintosh',398 8 => 'Z-System',399 9 => 'CP/M',400 10 => 'Windows NTFS',401 11 => 'MVS',402 12 => 'VSE',403 13 => 'Acorn Risc',404 14 => 'VFAT',405 15 => 'Alternate MVS',406 16 => 'BeOS',407 17 => 'Tandem'408 );409 return (isset($lookup[$index]) ? $lookup[$index] : '[unknown]');410 }414 public static function ZIPcompressionMethodLookup($index) {416 static $lookup = array (417 0 => 'store',418 1 => 'shrink',419 2 => 'reduce-1',420 3 => 'reduce-2',421 4 => 'reduce-3',422 5 => 'reduce-4',423 6 => 'implode',424 7 => 'tokenize',425 8 => 'deflate',426 9 => 'deflate64',427 10 => 'PKWARE Date Compression Library Imploding'428 );429 return (isset($lookup[$index]) ? $lookup[$index] : '[unknown]');430 }434 public static function DOStime2UNIXtime($DOSdate, $DOStime) {436 /*437 // wFatDate438 // Specifies the MS-DOS date. The date is a packed 16-bit value with the following format:439 // Bits Contents440 // 0-4 Day of the month (1-31)441 // 5-8 Month (1 = January, 2 = February, and so on)442 // 9-15 Year offset from 1980 (add 1980 to get actual year)444 $UNIXday = ($DOSdate & 0x001F);445 $UNIXmonth = (($DOSdate & 0x01E0) >> 5);446 $UNIXyear = (($DOSdate & 0xFE00) >> 9) + 1980;448 // wFatTime449 // Specifies the MS-DOS time. The time is a packed 16-bit value with the following format:450 // Bits Contents451 // 0-4 Second divided by 2452 // 5-10 Minute (0-59)453 // 11-15 Hour (0-23 on a 24-hour clock)455 $UNIXsecond = ($DOStime & 0x001F) * 2;456 $UNIXminute = (($DOStime & 0x07E0) >> 5);457 $UNIXhour = (($DOStime & 0xF800) >> 11);459 return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear);460 */461 return gmmktime(($DOStime & 0xF800) >> 11, ($DOStime & 0x07E0) >> 5, ($DOStime & 0x001F) * 2, ($DOSdate & 0x01E0) >> 5, $DOSdate & 0x001F, (($DOSdate & 0xFE00) >> 9) + 1980);462 }466 public static function array_merge_clobber($array1, $array2) {468 // written by kcØhireability*com469 // taken from http://www.php.net/manual/en/function.array-merge-recursive.php471 if (!is_array($array1) || !is_array($array2)) {472 return false;473 }475 $newarray = $array1;476 foreach ($array2 as $key => $val) {477 if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) {478 $newarray[$key] = getid3_zip::array_merge_clobber($newarray[$key], $val);479 } else {480 $newarray[$key] = $val;481 }482 }483 return $newarray;484 }488 public static function CreateDeepArray($array_path, $separator, $value) {490 // assigns $value to a nested array path:491 // $foo = getid3_lib::CreateDeepArray('/path/to/my', '/', 'file.txt')492 // is the same as:493 // $foo = array ('path'=>array('to'=>'array('my'=>array('file.txt'))));494 // or495 // $foo['path']['to']['my'] = 'file.txt';497 while ($array_path{0} == $separator) {498 $array_path = substr($array_path, 1);499 }500 if (($pos = strpos($array_path, $separator)) !== false) {501 return array (substr($array_path, 0, $pos) => getid3_zip::CreateDeepArray(substr($array_path, $pos + 1), $separator, $value));502 }504 return array ($array_path => $value);505 }507 }510 ?>