file_put_contents: Cannot create file $file
"; return false; } } class dUnzip2{ Function getVersion(){ return "2.6"; } // Public var $fileName; var $compressedList; // You will problably use only this one! var $centralDirList; // Central dir list... It's a kind of 'extra attributes' for a set of files var $endOfCentral; // End of central dir, contains ZIP Comments var $debug; // Private var $fh; var $zipSignature = "\x50\x4b\x03\x04"; // local file header signature var $dirSignature = "\x50\x4b\x01\x02"; // central dir header signature var $dirSignatureE= "\x50\x4b\x05\x06"; // end of central dir signature // Public Function dUnzip2($fileName){ $this->fileName = $fileName; $this->compressedList = $this->centralDirList = $this->endOfCentral = Array(); } Function getList($stopOnFile=false){ if(sizeof($this->compressedList)){ $this->debugMsg(1, "Returning already loaded file list."); return $this->compressedList; } // Open file, and set file handler $fh = fopen($this->fileName, "r"); $this->fh = &$fh; if(!$fh){ $this->debugMsg(2, "Failed to load file."); return false; } $this->debugMsg(1, "Loading list from 'End of Central Dir' index list..."); if(!$this->_loadFileListByEOF($fh, $stopOnFile)){ $this->debugMsg(1, "Failed! Trying to load list looking for signatures..."); if(!$this->_loadFileListBySignatures($fh, $stopOnFile)){ $this->debugMsg(1, "Failed! Could not find any valid header."); $this->debugMsg(2, "ZIP File is corrupted or empty"); return false; } } if($this->debug){ #------- Debug compressedList $kkk = 0; echo ""; foreach($this->compressedList as $fileName=>$item){ if(!$kkk && $kkk=1){ echo ""; foreach($item as $fieldName=>$value) echo ""; echo ''; } echo ""; foreach($item as $fieldName=>$value){ if($fieldName == 'lastmod_datetime') echo ""; else echo ""; } echo ""; } echo "
$fieldName
".date("d/m/Y H:i:s", $value)."$value
"; #------- Debug centralDirList $kkk = 0; if(sizeof($this->centralDirList)){ echo ""; foreach($this->centralDirList as $fileName=>$item){ if(!$kkk && $kkk=1){ echo ""; foreach($item as $fieldName=>$value) echo ""; echo ''; } echo ""; foreach($item as $fieldName=>$value){ if($fieldName == 'lastmod_datetime') echo ""; else echo ""; } echo ""; } echo "
$fieldName
".date("d/m/Y H:i:s", $value)."$value
"; } #------- Debug endOfCentral $kkk = 0; if(sizeof($this->endOfCentral)){ echo ""; echo ""; foreach($this->endOfCentral as $field=>$value){ echo ""; echo ""; echo ""; echo ""; } echo "
dUnzip - End of file
$field$value
"; } } return $this->compressedList; } Function getExtraInfo($compressedFileName){ return isset($this->centralDirList[$compressedFileName])? $this->centralDirList[$compressedFileName]: false; } Function getZipInfo($detail=false){ return $detail? $this->endOfCentral[$detail]: $this->endOfCentral; } Function unzip($compressedFileName, $targetFileName=false, $applyChmod=0777){ if(!sizeof($this->compressedList)){ $this->debugMsg(1, "Trying to unzip before loading file list... Loading it!"); $this->getList(false, $compressedFileName); } $fdetails = &$this->compressedList[$compressedFileName]; if(!isset($this->compressedList[$compressedFileName])){ $this->debugMsg(2, "File '$compressedFileName' is not compressed in the zip."); return false; } if(substr($compressedFileName, -1) == "/"){ $this->debugMsg(2, "Trying to unzip a folder name '$compressedFileName'."); return false; } if(!$fdetails['uncompressed_size']){ $this->debugMsg(1, "File '$compressedFileName' is empty."); return $targetFileName? file_put_contents($targetFileName, ""): ""; } fseek($this->fh, $fdetails['contents-startOffset']); $ret = $this->uncompress( fread($this->fh, $fdetails['compressed_size']), $fdetails['compression_method'], $fdetails['uncompressed_size'], $targetFileName ); if($applyChmod && $targetFileName) chmod($targetFileName, 0777); return $ret; } Function unzipAll($targetDir=false, $baseDir="", $maintainStructure=true, $applyChmod=0777){ if($targetDir === false) $targetDir = dirname(__FILE__)."/"; $lista = $this->getList(); if(sizeof($lista)) foreach($lista as $fileName=>$trash){ $dirname = dirname($fileName); $outDN = "$targetDir/$dirname"; if(substr($dirname, 0, strlen($baseDir)) != $baseDir) continue; if(!is_dir($outDN) && $maintainStructure){ $str = ""; $folders = explode("/", $dirname); foreach($folders as $folder){ $str = $str?"$str/$folder":$folder; if(!is_dir("$targetDir/$str")){ $this->debugMsg(1, "Creating folder: $targetDir/$str"); mkdir("$targetDir/$str"); if($applyChmod) chmod("$targetDir/$str", $applyChmod); } } } if(substr($fileName, -1, 1) == "/") continue; $maintainStructure? $this->unzip($fileName, "$targetDir/$fileName", $applyChmod): $this->unzip($fileName, "$targetDir/".basename($fileName), $applyChmod); } } Function close(){ // Free the file resource if($this->fh) fclose($this->fh); } Function __destroy(){ $this->close(); } // Private (you should NOT call these methods): Function uncompress($content, $mode, $uncompressedSize, $targetFileName=false){ switch($mode){ case 0: // Not compressed return $targetFileName? file_put_contents($targetFileName, $content): $content; case 1: $this->debugMsg(2, "Shrunk mode is not supported... yet?"); return false; case 2: case 3: case 4: case 5: $this->debugMsg(2, "Compression factor ".($mode-1)." is not supported... yet?"); return false; case 6: $this->debugMsg(2, "Implode is not supported... yet?"); return false; case 7: $this->debugMsg(2, "Tokenizing compression algorithm is not supported... yet?"); return false; case 8: // Deflate return $targetFileName? file_put_contents($targetFileName, gzinflate($content, $uncompressedSize)): gzinflate($content, $uncompressedSize); case 9: $this->debugMsg(2, "Enhanced Deflating is not supported... yet?"); return false; case 10: $this->debugMsg(2, "PKWARE Date Compression Library Impoloding is not supported... yet?"); return false; case 12: // Bzip2 return $targetFileName? file_put_contents($targetFileName, bzdecompress($content)): bzdecompress($content); case 18: $this->debugMsg(2, "IBM TERSE is not supported... yet?"); return false; default: $this->debugMsg(2, "Unknown uncompress method: $mode"); return false; } } Function debugMsg($level, $string){ if($this->debug) if($level == 1) echo "dUnzip2: $string
"; if($level == 2) echo "dUnzip2: $string
"; } Function _loadFileListByEOF(&$fh, $stopOnFile=false){ // Check if there's a valid Central Dir signature. // Let's consider a file comment smaller than 1024 characters... // Actually, it length can be 65536.. But we're not going to support it. for($x = 0; $x < 1024; $x++){ fseek($fh, -22-$x, SEEK_END); $signature = fread($fh, 4); if($signature == $this->dirSignatureE){ // If found EOF Central Dir $eodir['disk_number_this'] = unpack("v", fread($fh, 2)); // number of this disk $eodir['disk_number'] = unpack("v", fread($fh, 2)); // number of the disk with the start of the central directory $eodir['total_entries_this'] = unpack("v", fread($fh, 2)); // total number of entries in the central dir on this disk $eodir['total_entries'] = unpack("v", fread($fh, 2)); // total number of entries in $eodir['size_of_cd'] = unpack("V", fread($fh, 4)); // size of the central directory $eodir['offset_start_cd'] = unpack("V", fread($fh, 4)); // offset of start of central directory with respect to the starting disk number $zipFileCommentLenght = unpack("v", fread($fh, 2)); // zipfile comment length $eodir['zipfile_comment'] = $zipFileCommentLenght[1]?fread($fh, $zipFileCommentLenght[1]):''; // zipfile comment $this->endOfCentral = Array( 'disk_number_this'=>$eodir['disk_number_this'][1], 'disk_number'=>$eodir['disk_number'][1], 'total_entries_this'=>$eodir['total_entries_this'][1], 'total_entries'=>$eodir['total_entries'][1], 'size_of_cd'=>$eodir['size_of_cd'][1], 'offset_start_cd'=>$eodir['offset_start_cd'][1], 'zipfile_comment'=>$eodir['zipfile_comment'], ); // Then, load file list fseek($fh, $this->endOfCentral['offset_start_cd']); $signature = fread($fh, 4); while($signature == $this->dirSignature){ $dir['version_madeby'] = unpack("v", fread($fh, 2)); // version made by $dir['version_needed'] = unpack("v", fread($fh, 2)); // version needed to extract $dir['general_bit_flag'] = unpack("v", fread($fh, 2)); // general purpose bit flag $dir['compression_method'] = unpack("v", fread($fh, 2)); // compression method $dir['lastmod_time'] = unpack("v", fread($fh, 2)); // last mod file time $dir['lastmod_date'] = unpack("v", fread($fh, 2)); // last mod file date $dir['crc-32'] = fread($fh, 4); // crc-32 $dir['compressed_size'] = unpack("V", fread($fh, 4)); // compressed size $dir['uncompressed_size'] = unpack("V", fread($fh, 4)); // uncompressed size $fileNameLength = unpack("v", fread($fh, 2)); // filename length $extraFieldLength = unpack("v", fread($fh, 2)); // extra field length $fileCommentLength = unpack("v", fread($fh, 2)); // file comment length $dir['disk_number_start'] = unpack("v", fread($fh, 2)); // disk number start $dir['internal_attributes'] = unpack("v", fread($fh, 2)); // internal file attributes-byte1 $dir['external_attributes1']= unpack("v", fread($fh, 2)); // external file attributes-byte2 $dir['external_attributes2']= unpack("v", fread($fh, 2)); // external file attributes $dir['relative_offset'] = unpack("V", fread($fh, 4)); // relative offset of local header $dir['file_name'] = fread($fh, $fileNameLength[1]); // filename $dir['extra_field'] = $extraFieldLength[1] ?fread($fh, $extraFieldLength[1]) :''; // extra field $dir['file_comment'] = $fileCommentLength[1]?fread($fh, $fileCommentLength[1]):''; // file comment // Convert the date and time, from MS-DOS format to UNIX Timestamp $BINlastmod_date = str_pad(decbin($dir['lastmod_date'][1]), 16, '0', STR_PAD_LEFT); $BINlastmod_time = str_pad(decbin($dir['lastmod_time'][1]), 16, '0', STR_PAD_LEFT); $lastmod_dateY = bindec(substr($BINlastmod_date, 0, 7))+1980; $lastmod_dateM = bindec(substr($BINlastmod_date, 7, 4)); $lastmod_dateD = bindec(substr($BINlastmod_date, 11, 5)); $lastmod_timeH = bindec(substr($BINlastmod_time, 0, 5)); $lastmod_timeM = bindec(substr($BINlastmod_time, 5, 6)); $lastmod_timeS = bindec(substr($BINlastmod_time, 11, 5)); $this->centralDirList[$dir['file_name']] = Array( 'version_madeby'=>$dir['version_madeby'][1], 'version_needed'=>$dir['version_needed'][1], 'general_bit_flag'=>str_pad(decbin($dir['general_bit_flag'][1]), 8, '0', STR_PAD_LEFT), 'compression_method'=>$dir['compression_method'][1], 'lastmod_datetime' =>mktime($lastmod_timeH, $lastmod_timeM, $lastmod_timeS, $lastmod_dateM, $lastmod_dateD, $lastmod_dateY), 'crc-32' =>str_pad(dechex(ord($dir['crc-32'][3])), 2, '0', STR_PAD_LEFT). str_pad(dechex(ord($dir['crc-32'][2])), 2, '0', STR_PAD_LEFT). str_pad(dechex(ord($dir['crc-32'][1])), 2, '0', STR_PAD_LEFT). str_pad(dechex(ord($dir['crc-32'][0])), 2, '0', STR_PAD_LEFT), 'compressed_size'=>$dir['compressed_size'][1], 'uncompressed_size'=>$dir['uncompressed_size'][1], 'disk_number_start'=>$dir['disk_number_start'][1], 'internal_attributes'=>$dir['internal_attributes'][1], 'external_attributes1'=>$dir['external_attributes1'][1], 'external_attributes2'=>$dir['external_attributes2'][1], 'relative_offset'=>$dir['relative_offset'][1], 'file_name'=>$dir['file_name'], 'extra_field'=>$dir['extra_field'], 'file_comment'=>$dir['file_comment'], ); $signature = fread($fh, 4); } // If loaded centralDirs, then try to identify the offsetPosition of the compressed data. if($this->centralDirList) foreach($this->centralDirList as $filename=>$details){ $i = $this->_getFileHeaderInformation($fh, $details['relative_offset']); $this->compressedList[$filename]['file_name'] = $filename; $this->compressedList[$filename]['compression_method'] = $details['compression_method']; $this->compressedList[$filename]['version_needed'] = $details['version_needed']; $this->compressedList[$filename]['lastmod_datetime'] = $details['lastmod_datetime']; $this->compressedList[$filename]['crc-32'] = $details['crc-32']; $this->compressedList[$filename]['compressed_size'] = $details['compressed_size']; $this->compressedList[$filename]['uncompressed_size'] = $details['uncompressed_size']; $this->compressedList[$filename]['lastmod_datetime'] = $details['lastmod_datetime']; $this->compressedList[$filename]['extra_field'] = $i['extra_field']; $this->compressedList[$filename]['contents-startOffset']=$i['contents-startOffset']; if(strtolower($stopOnFile) == strtolower($filename)) break; } return true; } } return false; } Function _loadFileListBySignatures(&$fh, $stopOnFile=false){ fseek($fh, 0); $return = false; for(;;){ $details = $this->_getFileHeaderInformation($fh); if(!$details){ $this->debugMsg(1, "Invalid signature. Trying to verify if is old style Data Descriptor..."); fseek($fh, 12 - 4, SEEK_CUR); // 12: Data descriptor - 4: Signature (that will be read again) $details = $this->_getFileHeaderInformation($fh); } if(!$details){ $this->debugMsg(1, "Still invalid signature. Probably reached the end of the file."); break; } $filename = $details['file_name']; $this->compressedList[$filename] = $details; $return = true; if(strtolower($stopOnFile) == strtolower($filename)) break; } return $return; } Function _getFileHeaderInformation(&$fh, $startOffset=false){ if($startOffset !== false) fseek($fh, $startOffset); $signature = fread($fh, 4); if($signature == $this->zipSignature){ # $this->debugMsg(1, "Zip Signature!"); // Get information about the zipped file $file['version_needed'] = unpack("v", fread($fh, 2)); // version needed to extract $file['general_bit_flag'] = unpack("v", fread($fh, 2)); // general purpose bit flag $file['compression_method'] = unpack("v", fread($fh, 2)); // compression method $file['lastmod_time'] = unpack("v", fread($fh, 2)); // last mod file time $file['lastmod_date'] = unpack("v", fread($fh, 2)); // last mod file date $file['crc-32'] = fread($fh, 4); // crc-32 $file['compressed_size'] = unpack("V", fread($fh, 4)); // compressed size $file['uncompressed_size'] = unpack("V", fread($fh, 4)); // uncompressed size $fileNameLength = unpack("v", fread($fh, 2)); // filename length $extraFieldLength = unpack("v", fread($fh, 2)); // extra field length $file['file_name'] = fread($fh, $fileNameLength[1]); // filename $file['extra_field'] = $extraFieldLength[1]?fread($fh, $extraFieldLength[1]):''; // extra field $file['contents-startOffset']= ftell($fh); // Bypass the whole compressed contents, and look for the next file fseek($fh, $file['compressed_size'][1], SEEK_CUR); // Convert the date and time, from MS-DOS format to UNIX Timestamp $BINlastmod_date = str_pad(decbin($file['lastmod_date'][1]), 16, '0', STR_PAD_LEFT); $BINlastmod_time = str_pad(decbin($file['lastmod_time'][1]), 16, '0', STR_PAD_LEFT); $lastmod_dateY = bindec(substr($BINlastmod_date, 0, 7))+1980; $lastmod_dateM = bindec(substr($BINlastmod_date, 7, 4)); $lastmod_dateD = bindec(substr($BINlastmod_date, 11, 5)); $lastmod_timeH = bindec(substr($BINlastmod_time, 0, 5)); $lastmod_timeM = bindec(substr($BINlastmod_time, 5, 6)); $lastmod_timeS = bindec(substr($BINlastmod_time, 11, 5)); // Mount file table $i = Array( 'file_name' =>$file['file_name'], 'compression_method'=>$file['compression_method'][1], 'version_needed' =>$file['version_needed'][1], 'lastmod_datetime' =>mktime($lastmod_timeH, $lastmod_timeM, $lastmod_timeS, $lastmod_dateM, $lastmod_dateD, $lastmod_dateY), 'crc-32' =>str_pad(dechex(ord($file['crc-32'][3])), 2, '0', STR_PAD_LEFT). str_pad(dechex(ord($file['crc-32'][2])), 2, '0', STR_PAD_LEFT). str_pad(dechex(ord($file['crc-32'][1])), 2, '0', STR_PAD_LEFT). str_pad(dechex(ord($file['crc-32'][0])), 2, '0', STR_PAD_LEFT), 'compressed_size' =>$file['compressed_size'][1], 'uncompressed_size' =>$file['uncompressed_size'][1], 'extra_field' =>$file['extra_field'], 'general_bit_flag' =>str_pad(decbin($file['general_bit_flag'][1]), 8, '0', STR_PAD_LEFT), 'contents-startOffset'=>$file['contents-startOffset'] ); return $i; } return false; } }