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<?php ///////////////////////////////////////////////////////////////// /// getID3() by James Heinrich <info@getid3.org> // // available at http://getid3.sourceforge.net // // or http://www.getid3.org // // also https://github.com/JamesHeinrich/getID3 // ///////////////////////////////////////////////////////////////// // // // /demo/demo.zip.php - part of getID3() // // Sample script how to use getID3() to decompress zip files // // See readme.txt for more details // // /// ///////////////////////////////////////////////////////////////// function UnzipFileContents($filename, &$errors) { $errors = array(); $DecompressedFileContents = array(); if (!class_exists('getID3')) { $errors[] = 'class getID3 not defined, please include getid3.php'; } elseif (include_once('module.archive.zip.php')) { $getid3 = new getID3(); $getid3->info['filesize'] = filesize($filename); ob_start(); if ($getid3->fp = fopen($filename, 'rb')) { ob_end_clean(); $getid3_zip = new getid3_zip($getid3); $getid3_zip->analyze($filename); if (($getid3->info['fileformat'] == 'zip') && !empty($getid3->info['zip']['files'])) { if (!empty($getid3->info['zip']['central_directory'])) { $ZipDirectoryToWalk = $getid3->info['zip']['central_directory']; } elseif (!empty($getid3->info['zip']['entries'])) { $ZipDirectoryToWalk = $getid3->info['zip']['entries']; } else { $errors[] = 'failed to parse ZIP attachment "'.$piece_filename.'" (no central directory)<br>'; fclose($getid3->fp); return false; } foreach ($ZipDirectoryToWalk as $key => $valuearray) { fseek($getid3->fp, $valuearray['entry_offset'], SEEK_SET); $LocalFileHeader = $getid3_zip->ZIPparseLocalFileHeader($getid3->fp); if ($LocalFileHeader['flags']['encrypted']) { // password-protected $DecompressedFileContents[$valuearray['filename']] = ''; } else { fseek($getid3->fp, $LocalFileHeader['data_offset'], SEEK_SET); $compressedFileData = ''; while ((strlen($compressedFileData) < $LocalFileHeader['compressed_size']) && !feof($getid3->fp)) { $compressedFileData .= fread($getid3->fp, 32768); } switch ($LocalFileHeader['raw']['compression_method']) { case 0: // store - great, just copy data unchanged $uncompressedFileData = $compressedFileData; break; case 8: // deflate ob_start(); $uncompressedFileData = gzinflate($compressedFileData); $gzinflate_errors = trim(strip_tags(ob_get_contents())); ob_end_clean(); if ($gzinflate_errors) { $errors[] = 'gzinflate() failed for file ['.$LocalFileHeader['filename'].']: "'.$gzinflate_errors.'"'; continue 2; } break; case 1: // shrink case 2: // reduce-1 case 3: // reduce-2 case 4: // reduce-3 case 5: // reduce-4 case 6: // implode case 7: // tokenize case 9: // deflate64 case 10: // PKWARE Date Compression Library Imploding $DecompressedFileContents[$valuearray['filename']] = ''; $errors[] = 'unsupported ZIP compression method ('.$LocalFileHeader['raw']['compression_method'].' = '.$getid3_zip->ZIPcompressionMethodLookup($LocalFileHeader['raw']['compression_method']).')'; continue 2; default: $DecompressedFileContents[$valuearray['filename']] = ''; $errors[] = 'unknown ZIP compression method ('.$LocalFileHeader['raw']['compression_method'].')'; continue 2; } $DecompressedFileContents[$valuearray['filename']] = $uncompressedFileData; unset($compressedFileData); } } } else { $errors[] = $filename.' does not appear to be a zip file'; } } else { $error_message = ob_get_contents(); ob_end_clean(); $errors[] = 'failed to fopen('.$filename.', rb): '.$error_message; } } else { $errors[] = 'failed to include_once(module.archive.zip.php)'; } return $DecompressedFileContents; }