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<?php |
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/* |
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TbsZip version 2.16 |
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Date : 2014-04-08 |
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Author : Skrol29 (email: http://www.tinybutstrong.com/onlyyou.html) |
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Licence : LGPL |
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This class is independent from any other classes and has been originally created for the OpenTbs plug-in |
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for TinyButStrong Template Engine (TBS). OpenTbs makes TBS able to merge OpenOffice and Ms Office documents. |
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Visit http://www.tinybutstrong.com |
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*/ |
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class clsTbsZip { |
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const TBSZIP_DOWNLOAD = 1; // download (default) |
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const TBSZIP_NOHEADER = 4; // option to use with DOWNLOAD: no header is sent |
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const TBSZIP_FILE = 8; // output to file , or add from file |
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const TBSZIP_STRING = 32; // output to string, or add from string |
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function __construct() { |
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$this->Meth8Ok = extension_loaded('zlib'); // check if Zlib extension is available. This is need for compress and uncompress with method 8. |
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$this->DisplayError = true; |
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$this->ArchFile = ''; |
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$this->Error = false; |
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} |
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function CreateNew($ArchName='new.zip') { |
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// Create a new virtual empty archive, the name will be the default name when the archive is flushed. |
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if (!isset($this->Meth8Ok)) $this->__construct(); // for PHP 4 compatibility |
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$this->Close(); // note that $this->ArchHnd is set to false here |
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$this->Error = false; |
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$this->ArchFile = $ArchName; |
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$this->ArchIsNew = true; |
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$bin = 'PK'.chr(05).chr(06).str_repeat(chr(0), 18); |
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$this->CdEndPos = strlen($bin) - 4; |
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$this->CdInfo = array('disk_num_curr'=>0, 'disk_num_cd'=>0, 'file_nbr_curr'=>0, 'file_nbr_tot'=>0, 'l_cd'=>0, 'p_cd'=>0, 'l_comm'=>0, 'v_comm'=>'', 'bin'=>$bin); |
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$this->CdPos = $this->CdInfo['p_cd']; |
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} |
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function Open($ArchFile, $UseIncludePath=false) { |
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// Open the zip archive |
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if (!isset($this->Meth8Ok)) $this->__construct(); // for PHP 4 compatibility |
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$this->Close(); // close handle and init info |
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$this->Error = false; |
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$this->ArchIsNew = false; |
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$this->ArchIsStream = (is_resource($ArchFile) && (get_resource_type($ArchFile)=='stream')); |
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if ($this->ArchIsStream) { |
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$this->ArchFile = 'from_stream.zip'; |
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$this->ArchHnd = $ArchFile; |
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} else { |
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// open the file |
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$this->ArchFile = $ArchFile; |
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$this->ArchHnd = fopen($ArchFile, 'rb', $UseIncludePath); |
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} |
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$ok = !($this->ArchHnd===false); |
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if ($ok) $ok = $this->CentralDirRead(); |
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return $ok; |
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} |
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function Close() { |
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if (isset($this->ArchHnd) and ($this->ArchHnd!==false)) fclose($this->ArchHnd); |
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$this->ArchFile = ''; |
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$this->ArchHnd = false; |
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$this->CdInfo = array(); |
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$this->CdFileLst = array(); |
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$this->CdFileNbr = 0; |
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$this->CdFileByName = array(); |
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$this->VisFileLst = array(); |
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$this->ArchCancelModif(); |
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} |
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function ArchCancelModif() { |
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$this->LastReadComp = false; // compression of the last read file (1=compressed, 0=stored not compressed, -1= stored compressed but read uncompressed) |
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$this->LastReadIdx = false; // index of the last file read |
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$this->ReplInfo = array(); |
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$this->ReplByPos = array(); |
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$this->AddInfo = array(); |
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} |
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function FileAdd($Name, $Data, $DataType=self::TBSZIP_STRING, $Compress=true) { |
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if ($Data===false) return $this->FileCancelModif($Name, false); // Cancel a previously added file |
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// Save information for adding a new file into the archive |
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$Diff = 30 + 46 + 2*strlen($Name); // size of the header + cd info |
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$Ref = $this->_DataCreateNewRef($Data, $DataType, $Compress, $Diff, $Name); |
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if ($Ref===false) return false; |
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$Ref['name'] = $Name; |
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$this->AddInfo[] = $Ref; |
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return $Ref['res']; |
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} |
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function CentralDirRead() { |
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$cd_info = 'PK'.chr(05).chr(06); // signature of the Central Directory |
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$cd_pos = -22; |
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$this->_MoveTo($cd_pos, SEEK_END); |
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$b = $this->_ReadData(4); |
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if ($b===$cd_info) { |
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$this->CdEndPos = ftell($this->ArchHnd) - 4; |
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} else { |
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$p = $this->_FindCDEnd($cd_info); |
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//echo 'p='.var_export($p,true); exit; |
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if ($p===false) { |
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return $this->RaiseError('The End of Central Directory Record is not found.'); |
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} else { |
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$this->CdEndPos = $p; |
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$this->_MoveTo($p+4); |
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} |
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} |
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$this->CdInfo = $this->CentralDirRead_End($cd_info); |
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$this->CdFileLst = array(); |
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$this->CdFileNbr = $this->CdInfo['file_nbr_curr']; |
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$this->CdPos = $this->CdInfo['p_cd']; |
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if ($this->CdFileNbr<=0) return $this->RaiseError('No header found in the Central Directory.'); |
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if ($this->CdPos<=0) return $this->RaiseError('No position found for the Central Directory.'); |
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$this->_MoveTo($this->CdPos); |
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for ($i=0;$i<$this->CdFileNbr;$i++) { |
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$x = $this->CentralDirRead_File($i); |
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if ($x!==false) { |
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$this->CdFileLst[$i] = $x; |
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$this->CdFileByName[$x['v_name']] = $i; |
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} |
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} |
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return true; |
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} |
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function CentralDirRead_End($cd_info) { |
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$b = $cd_info.$this->_ReadData(18); |
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$x = array(); |
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$x['disk_num_curr'] = $this->_GetDec($b,4,2); // number of this disk |
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$x['disk_num_cd'] = $this->_GetDec($b,6,2); // number of the disk with the start of the central directory |
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$x['file_nbr_curr'] = $this->_GetDec($b,8,2); // total number of entries in the central directory on this disk |
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$x['file_nbr_tot'] = $this->_GetDec($b,10,2); // total number of entries in the central directory |
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$x['l_cd'] = $this->_GetDec($b,12,4); // size of the central directory |
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$x['p_cd'] = $this->_GetDec($b,16,4); // position of start of central directory with respect to the starting disk number |
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$x['l_comm'] = $this->_GetDec($b,20,2); // .ZIP file comment length |
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$x['v_comm'] = $this->_ReadData($x['l_comm']); // .ZIP file comment |
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$x['bin'] = $b.$x['v_comm']; |
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return $x; |
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} |
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function CentralDirRead_File($idx) { |
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$b = $this->_ReadData(46); |
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$x = $this->_GetHex($b,0,4); |
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if ($x!=='h:02014b50') return $this->RaiseError("Signature of Central Directory Header #".$idx." (file information) expected but not found at position ".$this->_TxtPos(ftell($this->ArchHnd) - 46)."."); |
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$x = array(); |
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$x['vers_used'] = $this->_GetDec($b,4,2); |
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$x['vers_necess'] = $this->_GetDec($b,6,2); |
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$x['purp'] = $this->_GetBin($b,8,2); |
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$x['meth'] = $this->_GetDec($b,10,2); |
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$x['time'] = $this->_GetDec($b,12,2); |
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$x['date'] = $this->_GetDec($b,14,2); |
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$x['crc32'] = $this->_GetDec($b,16,4); |
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$x['l_data_c'] = $this->_GetDec($b,20,4); |
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$x['l_data_u'] = $this->_GetDec($b,24,4); |
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$x['l_name'] = $this->_GetDec($b,28,2); |
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$x['l_fields'] = $this->_GetDec($b,30,2); |
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$x['l_comm'] = $this->_GetDec($b,32,2); |
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$x['disk_num'] = $this->_GetDec($b,34,2); |
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$x['int_file_att'] = $this->_GetDec($b,36,2); |
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$x['ext_file_att'] = $this->_GetDec($b,38,4); |
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$x['p_loc'] = $this->_GetDec($b,42,4); |
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$x['v_name'] = $this->_ReadData($x['l_name']); |
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$x['v_fields'] = $this->_ReadData($x['l_fields']); |
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$x['v_comm'] = $this->_ReadData($x['l_comm']); |
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$x['bin'] = $b.$x['v_name'].$x['v_fields'].$x['v_comm']; |
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return $x; |
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} |
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function RaiseError($Msg) { |
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if ($this->DisplayError) { |
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if (PHP_SAPI==='cli') { |
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echo get_class($this).' ERROR with the zip archive: '.$Msg."\r\n"; |
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} else { |
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echo '<strong>'.get_class($this).' ERROR with the zip archive:</strong> '.$Msg.'<br>'."\r\n"; |
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} |
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} |
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$this->Error = $Msg; |
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return false; |
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} |
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function Debug($FileHeaders=false) { |
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$this->DisplayError = true; |
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if ($FileHeaders) { |
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// Calculations first in order to have error messages before other information |
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$idx = 0; |
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$pos = 0; |
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$pos_stop = $this->CdInfo['p_cd']; |
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$this->_MoveTo($pos); |
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while ( ($pos<$pos_stop) && ($ok = $this->_ReadFile($idx,false)) ) { |
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$this->VisFileLst[$idx]['p_this_header (debug_mode only)'] = $pos; |
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$pos = ftell($this->ArchHnd); |
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$idx++; |
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} |
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} |
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$nl = "\r\n"; |
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echo "<pre>"; |
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echo "-------------------------------".$nl; |
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echo "End of Central Directory record".$nl; |
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echo "-------------------------------".$nl; |
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print_r($this->DebugArray($this->CdInfo)); |
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echo $nl; |
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echo "-------------------------".$nl; |
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echo "Central Directory headers".$nl; |
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echo "-------------------------".$nl; |
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print_r($this->DebugArray($this->CdFileLst)); |
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if ($FileHeaders) { |
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echo $nl; |
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echo "------------------".$nl; |
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echo "Local File headers".$nl; |
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echo "------------------".$nl; |
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print_r($this->DebugArray($this->VisFileLst)); |
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} |
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echo "</pre>"; |
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} |
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233
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function DebugArray($arr) { |
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foreach ($arr as $k=>$v) { |
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if (is_array($v)) { |
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$arr[$k] = $this->DebugArray($v); |
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} elseif (substr($k,0,2)=='p_') { |
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$arr[$k] = $this->_TxtPos($v); |
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} |
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} |
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return $arr; |
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242
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} |
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243
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244
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function FileExists($NameOrIdx) { |
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245
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return ($this->FileGetIdx($NameOrIdx)!==false); |
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246
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} |
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247
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248
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function FileGetIdx($NameOrIdx) { |
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249
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// Check if a file name, or a file index exists in the Central Directory, and return its index |
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250
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if (is_string($NameOrIdx)) { |
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251
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if (isset($this->CdFileByName[$NameOrIdx])) { |
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return $this->CdFileByName[$NameOrIdx]; |
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} else { |
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return false; |
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255
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} |
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256
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} else { |
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257
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if (isset($this->CdFileLst[$NameOrIdx])) { |
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return $NameOrIdx; |
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} else { |
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260
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return false; |
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261
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} |
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262
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} |
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263
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} |
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264
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265
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function FileGetIdxAdd($Name) { |
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// Check if a file name exists in the list of file to add, and return its index |
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if (!is_string($Name)) return false; |
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268
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$idx_lst = array_keys($this->AddInfo); |
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foreach ($idx_lst as $idx) { |
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if ($this->AddInfo[$idx]['name']===$Name) return $idx; |
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} |
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return false; |
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} |
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275
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function FileRead($NameOrIdx, $Uncompress=true) { |
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276
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277
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$this->LastReadComp = false; // means the file is not found |
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278
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$this->LastReadIdx = false; |
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280
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$idx = $this->FileGetIdx($NameOrIdx); |
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if ($idx===false) return $this->RaiseError('File "'.$NameOrIdx.'" is not found in the Central Directory.'); |
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282
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283
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$pos = $this->CdFileLst[$idx]['p_loc']; |
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$this->_MoveTo($pos); |
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|
|
$this->LastReadIdx = $idx; // Can be usefull to get the idx |
|
287
|
|
|
|
|
288
|
|
|
$Data = $this->_ReadFile($idx, true); |
|
289
|
|
|
|
|
290
|
|
|
// Manage uncompression |
|
291
|
|
|
$Comp = 1; // means the contents stays compressed |
|
292
|
|
|
$meth = $this->CdFileLst[$idx]['meth']; |
|
293
|
|
|
if ($meth==8) { |
|
294
|
|
|
if ($Uncompress) { |
|
295
|
|
|
if ($this->Meth8Ok) { |
|
296
|
|
|
$Data = gzinflate($Data); |
|
297
|
|
|
$Comp = -1; // means uncompressed |
|
298
|
|
|
} else { |
|
299
|
|
|
$this->RaiseError('Unable to uncompress file "'.$NameOrIdx.'" because extension Zlib is not installed.'); |
|
300
|
|
|
} |
|
301
|
|
|
} |
|
302
|
|
|
} elseif($meth==0) { |
|
303
|
|
|
$Comp = 0; // means stored without compression |
|
304
|
|
|
} else { |
|
305
|
|
|
if ($Uncompress) $this->RaiseError('Unable to uncompress file "'.$NameOrIdx.'" because it is compressed with method '.$meth.'.'); |
|
306
|
|
|
} |
|
307
|
|
|
$this->LastReadComp = $Comp; |
|
308
|
|
|
|
|
309
|
|
|
return $Data; |
|
310
|
|
|
|
|
311
|
|
|
} |
|
312
|
|
|
|
|
313
|
|
|
function _ReadFile($idx, $ReadData) { |
|
314
|
|
|
// read the file header (and maybe the data ) in the archive, assuming the cursor in at a new file position |
|
315
|
|
|
|
|
316
|
|
|
$b = $this->_ReadData(30); |
|
317
|
|
|
|
|
318
|
|
|
$x = $this->_GetHex($b,0,4); |
|
319
|
|
|
if ($x!=='h:04034b50') return $this->RaiseError("Signature of Local File Header #".$idx." (data section) expected but not found at position ".$this->_TxtPos(ftell($this->ArchHnd)-30)."."); |
|
320
|
|
|
|
|
321
|
|
|
$x = array(); |
|
322
|
|
|
$x['vers'] = $this->_GetDec($b,4,2); |
|
323
|
|
|
$x['purp'] = $this->_GetBin($b,6,2); |
|
324
|
|
|
$x['meth'] = $this->_GetDec($b,8,2); |
|
325
|
|
|
$x['time'] = $this->_GetDec($b,10,2); |
|
326
|
|
|
$x['date'] = $this->_GetDec($b,12,2); |
|
327
|
|
|
$x['crc32'] = $this->_GetDec($b,14,4); |
|
328
|
|
|
$x['l_data_c'] = $this->_GetDec($b,18,4); |
|
329
|
|
|
$x['l_data_u'] = $this->_GetDec($b,22,4); |
|
330
|
|
|
$x['l_name'] = $this->_GetDec($b,26,2); |
|
331
|
|
|
$x['l_fields'] = $this->_GetDec($b,28,2); |
|
332
|
|
|
$x['v_name'] = $this->_ReadData($x['l_name']); |
|
333
|
|
|
$x['v_fields'] = $this->_ReadData($x['l_fields']); |
|
334
|
|
|
|
|
335
|
|
|
$x['bin'] = $b.$x['v_name'].$x['v_fields']; |
|
336
|
|
|
|
|
337
|
|
|
// Read Data |
|
338
|
|
|
if (isset($this->CdFileLst[$idx])) { |
|
339
|
|
|
$len_cd = $this->CdFileLst[$idx]['l_data_c']; |
|
340
|
|
|
if ($x['l_data_c']==0) { |
|
341
|
|
|
// Sometimes, the size is not specified in the local information. |
|
342
|
|
|
$len = $len_cd; |
|
343
|
|
|
} else { |
|
344
|
|
|
$len = $x['l_data_c']; |
|
345
|
|
|
if ($len!=$len_cd) { |
|
346
|
|
|
//echo "TbsZip Warning: Local information for file #".$idx." says len=".$len.", while Central Directory says len=".$len_cd."."; |
|
347
|
|
|
} |
|
348
|
|
|
} |
|
349
|
|
|
} else { |
|
350
|
|
|
$len = $x['l_data_c']; |
|
351
|
|
|
if ($len==0) $this->RaiseError("File Data #".$idx." cannt be read because no length is specified in the Local File Header and its Central Directory information has not been found."); |
|
352
|
|
|
} |
|
353
|
|
|
|
|
354
|
|
|
if ($ReadData) { |
|
355
|
|
|
$Data = $this->_ReadData($len); |
|
356
|
|
|
} else { |
|
357
|
|
|
$this->_MoveTo($len, SEEK_CUR); |
|
358
|
|
|
} |
|
359
|
|
|
|
|
360
|
|
|
// Description information |
|
361
|
|
|
$desc_ok = ($x['purp'][2+3]=='1'); |
|
362
|
|
|
if ($desc_ok) { |
|
363
|
|
|
$b = $this->_ReadData(12); |
|
364
|
|
|
$s = $this->_GetHex($b,0,4); |
|
365
|
|
|
$d = 0; |
|
366
|
|
|
// the specification says the signature may or may not be present |
|
367
|
|
|
if ($s=='h:08074b50') { |
|
368
|
|
|
$b .= $this->_ReadData(4); |
|
369
|
|
|
$d = 4; |
|
370
|
|
|
$x['desc_bin'] = $b; |
|
371
|
|
|
$x['desc_sign'] = $s; |
|
372
|
|
|
} else { |
|
373
|
|
|
$x['desc_bin'] = $b; |
|
374
|
|
|
} |
|
375
|
|
|
$x['desc_crc32'] = $this->_GetDec($b,0+$d,4); |
|
376
|
|
|
$x['desc_l_data_c'] = $this->_GetDec($b,4+$d,4); |
|
377
|
|
|
$x['desc_l_data_u'] = $this->_GetDec($b,8+$d,4); |
|
378
|
|
|
} |
|
379
|
|
|
|
|
380
|
|
|
// Save file info without the data |
|
381
|
|
|
$this->VisFileLst[$idx] = $x; |
|
382
|
|
|
|
|
383
|
|
|
// Return the info |
|
384
|
|
|
if ($ReadData) { |
|
385
|
|
|
return $Data; |
|
386
|
|
|
} else { |
|
387
|
|
|
return true; |
|
388
|
|
|
} |
|
389
|
|
|
|
|
390
|
|
|
} |
|
391
|
|
|
|
|
392
|
|
|
function FileReplace($NameOrIdx, $Data, $DataType=self::TBSZIP_STRING, $Compress=true) { |
|
393
|
|
|
// Store replacement information. |
|
394
|
|
|
|
|
395
|
|
|
$idx = $this->FileGetIdx($NameOrIdx); |
|
396
|
|
|
if ($idx===false) return $this->RaiseError('File "'.$NameOrIdx.'" is not found in the Central Directory.'); |
|
397
|
|
|
|
|
398
|
|
|
$pos = $this->CdFileLst[$idx]['p_loc']; |
|
399
|
|
|
|
|
400
|
|
|
if ($Data===false) { |
|
401
|
|
|
// file to delete |
|
402
|
|
|
$this->ReplInfo[$idx] = false; |
|
403
|
|
|
$Result = true; |
|
404
|
|
|
} else { |
|
405
|
|
|
// file to replace |
|
406
|
|
|
$Diff = - $this->CdFileLst[$idx]['l_data_c']; |
|
407
|
|
|
$Ref = $this->_DataCreateNewRef($Data, $DataType, $Compress, $Diff, $NameOrIdx); |
|
408
|
|
|
if ($Ref===false) return false; |
|
409
|
|
|
$this->ReplInfo[$idx] = $Ref; |
|
410
|
|
|
$Result = $Ref['res']; |
|
411
|
|
|
} |
|
412
|
|
|
|
|
413
|
|
|
$this->ReplByPos[$pos] = $idx; |
|
414
|
|
|
|
|
415
|
|
|
return $Result; |
|
416
|
|
|
|
|
417
|
|
|
} |
|
418
|
|
|
|
|
419
|
|
|
/** |
|
420
|
|
|
* Return the state of the file. |
|
421
|
|
|
* @return {string} 'u'=unchanged, 'm'=modified, 'd'=deleted, 'a'=added, false=unknown |
|
422
|
|
|
*/ |
|
423
|
|
|
function FileGetState($NameOrIdx) { |
|
424
|
|
|
|
|
425
|
|
|
$idx = $this->FileGetIdx($NameOrIdx); |
|
426
|
|
|
if ($idx===false) { |
|
427
|
|
|
$idx = $this->FileGetIdxAdd($NameOrIdx); |
|
428
|
|
|
if ($idx===false) { |
|
429
|
|
|
return false; |
|
430
|
|
|
} else { |
|
431
|
|
|
return 'a'; |
|
432
|
|
|
} |
|
433
|
|
|
} elseif (isset($this->ReplInfo[$idx])) { |
|
434
|
|
|
if ($this->ReplInfo[$idx]===false) { |
|
435
|
|
|
return 'd'; |
|
436
|
|
|
} else { |
|
437
|
|
|
return 'm'; |
|
438
|
|
|
} |
|
439
|
|
|
} else { |
|
440
|
|
|
return 'u'; |
|
441
|
|
|
} |
|
442
|
|
|
|
|
443
|
|
|
} |
|
444
|
|
|
|
|
445
|
|
|
function FileCancelModif($NameOrIdx, $ReplacedAndDeleted=true) { |
|
446
|
|
|
// cancel added, modified or deleted modifications on a file in the archive |
|
447
|
|
|
// return the number of cancels |
|
448
|
|
|
|
|
449
|
|
|
$nbr = 0; |
|
450
|
|
|
|
|
451
|
|
|
if ($ReplacedAndDeleted) { |
|
452
|
|
|
// replaced or deleted files |
|
453
|
|
|
$idx = $this->FileGetIdx($NameOrIdx); |
|
454
|
|
|
if ($idx!==false) { |
|
455
|
|
|
if (isset($this->ReplInfo[$idx])) { |
|
456
|
|
|
$pos = $this->CdFileLst[$idx]['p_loc']; |
|
457
|
|
|
unset($this->ReplByPos[$pos]); |
|
458
|
|
|
unset($this->ReplInfo[$idx]); |
|
459
|
|
|
$nbr++; |
|
460
|
|
|
} |
|
461
|
|
|
} |
|
462
|
|
|
} |
|
463
|
|
|
|
|
464
|
|
|
// added files |
|
465
|
|
|
$idx = $this->FileGetIdxAdd($NameOrIdx); |
|
466
|
|
|
if ($idx!==false) { |
|
467
|
|
|
unset($this->AddInfo[$idx]); |
|
468
|
|
|
$nbr++; |
|
469
|
|
|
} |
|
470
|
|
|
|
|
471
|
|
|
return $nbr; |
|
472
|
|
|
|
|
473
|
|
|
} |
|
474
|
|
|
|
|
475
|
|
|
function Flush($Render=self::TBSZIP_DOWNLOAD, $File='', $ContentType='') { |
|
476
|
|
|
|
|
477
|
|
|
if ( ($File!=='') && ($this->ArchFile===$File) && ($Render==self::TBSZIP_FILE) ) { |
|
478
|
|
|
$this->RaiseError('Method Flush() cannot overwrite the current opened archive: \''.$File.'\''); // this makes corrupted zip archives without PHP error. |
|
479
|
|
|
return false; |
|
480
|
|
|
} |
|
481
|
|
|
|
|
482
|
|
|
$ArchPos = 0; |
|
483
|
|
|
$Delta = 0; |
|
484
|
|
|
$FicNewPos = array(); |
|
485
|
|
|
$DelLst = array(); // idx of deleted files |
|
486
|
|
|
$DeltaCdLen = 0; // delta of the CD's size |
|
487
|
|
|
|
|
488
|
|
|
$now = time(); |
|
489
|
|
|
$date = $this->_MsDos_Date($now); |
|
490
|
|
|
$time = $this->_MsDos_Time($now); |
|
491
|
|
|
|
|
492
|
|
|
if (!$this->OutputOpen($Render, $File, $ContentType)) return false; |
|
493
|
|
|
|
|
494
|
|
|
// output modified zipped files and unmodified zipped files that are beetween them |
|
495
|
|
|
ksort($this->ReplByPos); |
|
496
|
|
|
foreach ($this->ReplByPos as $ReplPos => $ReplIdx) { |
|
497
|
|
|
// output data from the zip archive which is before the data to replace |
|
498
|
|
|
$this->OutputFromArch($ArchPos, $ReplPos); |
|
499
|
|
|
// get current file information |
|
500
|
|
|
if (!isset($this->VisFileLst[$ReplIdx])) $this->_ReadFile($ReplIdx, false); |
|
501
|
|
|
$FileInfo =& $this->VisFileLst[$ReplIdx]; |
|
502
|
|
|
$b1 = $FileInfo['bin']; |
|
503
|
|
|
if (isset($FileInfo['desc_bin'])) { |
|
504
|
|
|
$b2 = $FileInfo['desc_bin']; |
|
505
|
|
|
} else { |
|
506
|
|
|
$b2 = ''; |
|
507
|
|
|
} |
|
508
|
|
|
$info_old_len = strlen($b1) + $this->CdFileLst[$ReplIdx]['l_data_c'] + strlen($b2); // $FileInfo['l_data_c'] may have a 0 value in some archives |
|
509
|
|
|
// get replacement information |
|
510
|
|
|
$ReplInfo =& $this->ReplInfo[$ReplIdx]; |
|
511
|
|
|
if ($ReplInfo===false) { |
|
512
|
|
|
// The file is to be deleted |
|
513
|
|
|
$Delta = $Delta - $info_old_len; // headers and footers are also deleted |
|
514
|
|
|
$DelLst[$ReplIdx] = true; |
|
515
|
|
|
} else { |
|
516
|
|
|
// prepare the header of the current file |
|
517
|
|
|
$this->_DataPrepare($ReplInfo); // get data from external file if necessary |
|
518
|
|
|
$this->_PutDec($b1, $time, 10, 2); // time |
|
519
|
|
|
$this->_PutDec($b1, $date, 12, 2); // date |
|
520
|
|
|
$this->_PutDec($b1, $ReplInfo['crc32'], 14, 4); // crc32 |
|
521
|
|
|
$this->_PutDec($b1, $ReplInfo['len_c'], 18, 4); // l_data_c |
|
522
|
|
|
$this->_PutDec($b1, $ReplInfo['len_u'], 22, 4); // l_data_u |
|
523
|
|
|
if ($ReplInfo['meth']!==false) $this->_PutDec($b1, $ReplInfo['meth'], 8, 2); // meth |
|
524
|
|
|
// prepare the bottom description if the zipped file, if any |
|
525
|
|
|
if ($b2!=='') { |
|
526
|
|
|
$d = (strlen($b2)==16) ? 4 : 0; // offset because of the signature if any |
|
527
|
|
|
$this->_PutDec($b2, $ReplInfo['crc32'], $d+0, 4); // crc32 |
|
528
|
|
|
$this->_PutDec($b2, $ReplInfo['len_c'], $d+4, 4); // l_data_c |
|
529
|
|
|
$this->_PutDec($b2, $ReplInfo['len_u'], $d+8, 4); // l_data_u |
|
530
|
|
|
} |
|
531
|
|
|
// output data |
|
532
|
|
|
$this->OutputFromString($b1.$ReplInfo['data'].$b2); |
|
533
|
|
|
unset($ReplInfo['data']); // save PHP memory |
|
534
|
|
|
$Delta = $Delta + $ReplInfo['diff'] + $ReplInfo['len_c']; |
|
535
|
|
|
} |
|
536
|
|
|
// Update the delta of positions for zipped files which are physically after the currently replaced one |
|
537
|
|
|
for ($i=0;$i<$this->CdFileNbr;$i++) { |
|
538
|
|
|
if ($this->CdFileLst[$i]['p_loc']>$ReplPos) { |
|
539
|
|
|
$FicNewPos[$i] = $this->CdFileLst[$i]['p_loc'] + $Delta; |
|
540
|
|
|
} |
|
541
|
|
|
} |
|
542
|
|
|
// Update the current pos in the archive |
|
543
|
|
|
$ArchPos = $ReplPos + $info_old_len; |
|
544
|
|
|
} |
|
545
|
|
|
|
|
546
|
|
|
// Ouput all the zipped files that remain before the Central Directory listing |
|
547
|
|
|
if ($this->ArchHnd!==false) $this->OutputFromArch($ArchPos, $this->CdPos); // ArchHnd is false if CreateNew() has been called |
|
548
|
|
|
$ArchPos = $this->CdPos; |
|
549
|
|
|
|
|
550
|
|
|
// Output file to add |
|
551
|
|
|
$AddNbr = count($this->AddInfo); |
|
552
|
|
|
$AddDataLen = 0; // total len of added data (inlcuding file headers) |
|
553
|
|
|
if ($AddNbr>0) { |
|
554
|
|
|
$AddPos = $ArchPos + $Delta; // position of the start |
|
555
|
|
|
$AddLst = array_keys($this->AddInfo); |
|
556
|
|
|
foreach ($AddLst as $idx) { |
|
557
|
|
|
$n = $this->_DataOuputAddedFile($idx, $AddPos); |
|
558
|
|
|
$AddPos += $n; |
|
559
|
|
|
$AddDataLen += $n; |
|
560
|
|
|
} |
|
561
|
|
|
} |
|
562
|
|
|
|
|
563
|
|
|
// Modifiy file information in the Central Directory for replaced files |
|
564
|
|
|
$b2 = ''; |
|
565
|
|
|
$old_cd_len = 0; |
|
566
|
|
|
for ($i=0;$i<$this->CdFileNbr;$i++) { |
|
567
|
|
|
$b1 = $this->CdFileLst[$i]['bin']; |
|
568
|
|
|
$old_cd_len += strlen($b1); |
|
569
|
|
|
if (!isset($DelLst[$i])) { |
|
570
|
|
|
if (isset($FicNewPos[$i])) $this->_PutDec($b1, $FicNewPos[$i], 42, 4); // p_loc |
|
571
|
|
|
if (isset($this->ReplInfo[$i])) { |
|
572
|
|
|
$ReplInfo =& $this->ReplInfo[$i]; |
|
573
|
|
|
$this->_PutDec($b1, $time, 12, 2); // time |
|
574
|
|
|
$this->_PutDec($b1, $date, 14, 2); // date |
|
575
|
|
|
$this->_PutDec($b1, $ReplInfo['crc32'], 16, 4); // crc32 |
|
576
|
|
|
$this->_PutDec($b1, $ReplInfo['len_c'], 20, 4); // l_data_c |
|
577
|
|
|
$this->_PutDec($b1, $ReplInfo['len_u'], 24, 4); // l_data_u |
|
578
|
|
|
if ($ReplInfo['meth']!==false) $this->_PutDec($b1, $ReplInfo['meth'], 10, 2); // meth |
|
579
|
|
|
} |
|
580
|
|
|
$b2 .= $b1; |
|
581
|
|
|
} |
|
582
|
|
|
} |
|
583
|
|
|
$this->OutputFromString($b2); |
|
584
|
|
|
$ArchPos += $old_cd_len; |
|
585
|
|
|
$DeltaCdLen = $DeltaCdLen + strlen($b2) - $old_cd_len; |
|
586
|
|
|
|
|
587
|
|
|
// Output until "end of central directory record" |
|
588
|
|
|
if ($this->ArchHnd!==false) $this->OutputFromArch($ArchPos, $this->CdEndPos); // ArchHnd is false if CreateNew() has been called |
|
589
|
|
|
|
|
590
|
|
|
// Output file information of the Central Directory for added files |
|
591
|
|
|
if ($AddNbr>0) { |
|
592
|
|
|
$b2 = ''; |
|
593
|
|
|
foreach ($AddLst as $idx) { |
|
594
|
|
|
$b2 .= $this->AddInfo[$idx]['bin']; |
|
595
|
|
|
} |
|
596
|
|
|
$this->OutputFromString($b2); |
|
597
|
|
|
$DeltaCdLen += strlen($b2); |
|
598
|
|
|
} |
|
599
|
|
|
|
|
600
|
|
|
// Output "end of central directory record" |
|
601
|
|
|
$b2 = $this->CdInfo['bin']; |
|
602
|
|
|
$DelNbr = count($DelLst); |
|
603
|
|
|
if ( ($AddNbr>0) or ($DelNbr>0) ) { |
|
604
|
|
|
// total number of entries in the central directory on this disk |
|
605
|
|
|
$n = $this->_GetDec($b2, 8, 2); |
|
606
|
|
|
$this->_PutDec($b2, $n + $AddNbr - $DelNbr, 8, 2); |
|
607
|
|
|
// total number of entries in the central directory |
|
608
|
|
|
$n = $this->_GetDec($b2, 10, 2); |
|
609
|
|
|
$this->_PutDec($b2, $n + $AddNbr - $DelNbr, 10, 2); |
|
610
|
|
|
// size of the central directory |
|
611
|
|
|
$n = $this->_GetDec($b2, 12, 4); |
|
612
|
|
|
$this->_PutDec($b2, $n + $DeltaCdLen, 12, 4); |
|
613
|
|
|
$Delta = $Delta + $AddDataLen; |
|
614
|
|
|
} |
|
615
|
|
|
$this->_PutDec($b2, $this->CdPos+$Delta , 16, 4); // p_cd (offset of start of central directory with respect to the starting disk number) |
|
616
|
|
|
$this->OutputFromString($b2); |
|
617
|
|
|
|
|
618
|
|
|
$this->OutputClose(); |
|
619
|
|
|
|
|
620
|
|
|
return true; |
|
621
|
|
|
|
|
622
|
|
|
} |
|
623
|
|
|
|
|
624
|
|
|
// ---------------- |
|
625
|
|
|
// output functions |
|
626
|
|
|
// ---------------- |
|
627
|
|
|
|
|
628
|
|
|
function OutputOpen($Render, $File, $ContentType) { |
|
629
|
|
|
|
|
630
|
|
|
if (($Render & self::TBSZIP_FILE)==self::TBSZIP_FILE) { |
|
631
|
|
|
$this->OutputMode = self::TBSZIP_FILE; |
|
632
|
|
|
if (''.$File=='') $File = basename($this->ArchFile).'.zip'; |
|
633
|
|
|
$this->OutputHandle = @fopen($File, 'w'); |
|
634
|
|
|
if ($this->OutputHandle===false) { |
|
635
|
|
|
return $this->RaiseError('Method Flush() cannot overwrite the target file \''.$File.'\'. This may not be a valid file path or the file may be locked by another process or because of a denied permission.'); |
|
636
|
|
|
} |
|
637
|
|
|
} elseif (($Render & self::TBSZIP_STRING)==self::TBSZIP_STRING) { |
|
638
|
|
|
$this->OutputMode = self::TBSZIP_STRING; |
|
639
|
|
|
$this->OutputSrc = ''; |
|
640
|
|
|
} elseif (($Render & self::TBSZIP_DOWNLOAD)==self::TBSZIP_DOWNLOAD) { |
|
641
|
|
|
$this->OutputMode = self::TBSZIP_DOWNLOAD; |
|
642
|
|
|
// Output the file |
|
643
|
|
|
if (''.$File=='') $File = basename($this->ArchFile); |
|
644
|
|
|
if (($Render & self::TBSZIP_NOHEADER)==self::TBSZIP_NOHEADER) { |
|
645
|
|
|
} else { |
|
646
|
|
|
header ('Pragma: no-cache'); |
|
647
|
|
|
if ($ContentType!='') header ('Content-Type: '.$ContentType); |
|
648
|
|
|
header('Content-Disposition: attachment; filename="'.$File.'"'); |
|
649
|
|
|
header('Expires: 0'); |
|
650
|
|
|
header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); |
|
651
|
|
|
header('Cache-Control: public'); |
|
652
|
|
|
header('Content-Description: File Transfer'); |
|
653
|
|
|
header('Content-Transfer-Encoding: binary'); |
|
654
|
|
|
$Len = $this->_EstimateNewArchSize(); |
|
655
|
|
|
if ($Len!==false) header('Content-Length: '.$Len); |
|
656
|
|
|
} |
|
657
|
|
|
} else { |
|
658
|
|
|
return $this->RaiseError('Method Flush is called with a unsupported render option.'); |
|
659
|
|
|
} |
|
660
|
|
|
|
|
661
|
|
|
return true; |
|
662
|
|
|
|
|
663
|
|
|
} |
|
664
|
|
|
|
|
665
|
|
|
function OutputFromArch($pos, $pos_stop) { |
|
666
|
|
|
$len = $pos_stop - $pos; |
|
667
|
|
|
if ($len<0) return; |
|
668
|
|
|
$this->_MoveTo($pos); |
|
669
|
|
|
$block = 1024; |
|
670
|
|
|
while ($len>0) { |
|
671
|
|
|
$l = min($len, $block); |
|
672
|
|
|
$x = $this->_ReadData($l); |
|
673
|
|
|
$this->OutputFromString($x); |
|
674
|
|
|
$len = $len - $l; |
|
675
|
|
|
} |
|
676
|
|
|
unset($x); |
|
677
|
|
|
} |
|
678
|
|
|
|
|
679
|
|
|
function OutputFromString($data) { |
|
680
|
|
|
if ($this->OutputMode===self::TBSZIP_DOWNLOAD) { |
|
681
|
|
|
echo $data; // donwload |
|
682
|
|
|
} elseif ($this->OutputMode===self::TBSZIP_STRING) { |
|
683
|
|
|
$this->OutputSrc .= $data; // to string |
|
684
|
|
|
} elseif (self::TBSZIP_FILE) { |
|
685
|
|
|
fwrite($this->OutputHandle, $data); // to file |
|
686
|
|
|
} |
|
687
|
|
|
} |
|
688
|
|
|
|
|
689
|
|
|
function OutputClose() { |
|
690
|
|
|
if ( ($this->OutputMode===self::TBSZIP_FILE) && ($this->OutputHandle!==false) ) { |
|
691
|
|
|
fclose($this->OutputHandle); |
|
692
|
|
|
$this->OutputHandle = false; |
|
693
|
|
|
} |
|
694
|
|
|
} |
|
695
|
|
|
|
|
696
|
|
|
// ---------------- |
|
697
|
|
|
// Reading functions |
|
698
|
|
|
// ---------------- |
|
699
|
|
|
|
|
700
|
|
|
function _MoveTo($pos, $relative = SEEK_SET) { |
|
701
|
|
|
fseek($this->ArchHnd, $pos, $relative); |
|
702
|
|
|
} |
|
703
|
|
|
|
|
704
|
|
|
function _ReadData($len) { |
|
705
|
|
|
if ($len>0) { |
|
706
|
|
|
$x = fread($this->ArchHnd, $len); |
|
707
|
|
|
return $x; |
|
708
|
|
|
} else { |
|
709
|
|
|
return ''; |
|
710
|
|
|
} |
|
711
|
|
|
} |
|
712
|
|
|
|
|
713
|
|
|
// ---------------- |
|
714
|
|
|
// Take info from binary data |
|
715
|
|
|
// ---------------- |
|
716
|
|
|
|
|
717
|
|
|
function _GetDec($txt, $pos, $len) { |
|
718
|
|
|
$x = substr($txt, $pos, $len); |
|
719
|
|
|
$z = 0; |
|
720
|
|
|
for ($i=0;$i<$len;$i++) { |
|
721
|
|
|
$asc = ord($x[$i]); |
|
722
|
|
|
if ($asc>0) $z = $z + $asc*pow(256,$i); |
|
723
|
|
|
} |
|
724
|
|
|
return $z; |
|
725
|
|
|
} |
|
726
|
|
|
|
|
727
|
|
|
function _GetHex($txt, $pos, $len) { |
|
728
|
|
|
$x = substr($txt, $pos, $len); |
|
729
|
|
|
return 'h:'.bin2hex(strrev($x)); |
|
730
|
|
|
} |
|
731
|
|
|
|
|
732
|
|
|
function _GetBin($txt, $pos, $len) { |
|
733
|
|
|
$x = substr($txt, $pos, $len); |
|
734
|
|
|
$z = ''; |
|
735
|
|
|
for ($i=0;$i<$len;$i++) { |
|
736
|
|
|
$asc = ord($x[$i]); |
|
737
|
|
|
if (isset($x[$i])) { |
|
738
|
|
|
for ($j=0;$j<8;$j++) { |
|
739
|
|
|
$z .= ($asc & pow(2,$j)) ? '1' : '0'; |
|
740
|
|
|
} |
|
741
|
|
|
} else { |
|
742
|
|
|
$z .= '00000000'; |
|
743
|
|
|
} |
|
744
|
|
|
} |
|
745
|
|
|
return 'b:'.$z; |
|
746
|
|
|
} |
|
747
|
|
|
|
|
748
|
|
|
// ---------------- |
|
749
|
|
|
// Put info into binary data |
|
750
|
|
|
// ---------------- |
|
751
|
|
|
|
|
752
|
|
|
function _PutDec(&$txt, $val, $pos, $len) { |
|
753
|
|
|
$x = ''; |
|
754
|
|
|
for ($i=0;$i<$len;$i++) { |
|
755
|
|
|
if ($val==0) { |
|
756
|
|
|
$z = 0; |
|
757
|
|
|
} else { |
|
758
|
|
|
$z = intval($val % 256); |
|
759
|
|
|
if (($val<0) && ($z!=0)) { // ($z!=0) is very important, example: val=-420085702 |
|
760
|
|
|
// special opration for negative value. If the number id too big, PHP stores it into a signed integer. For example: crc32('coucou') => -256185401 instead of 4038781895. NegVal = BigVal - (MaxVal+1) = BigVal - 256^4 |
|
761
|
|
|
$val = ($val - $z)/256 -1; |
|
762
|
|
|
$z = 256 + $z; |
|
763
|
|
|
} else { |
|
764
|
|
|
$val = ($val - $z)/256; |
|
765
|
|
|
} |
|
766
|
|
|
} |
|
767
|
|
|
$x .= chr($z); |
|
768
|
|
|
} |
|
769
|
|
|
$txt = substr_replace($txt, $x, $pos, $len); |
|
770
|
|
|
} |
|
771
|
|
|
|
|
772
|
|
|
function _MsDos_Date($Timestamp = false) { |
|
773
|
|
|
// convert a date-time timstamp into the MS-Dos format |
|
774
|
|
|
$d = ($Timestamp===false) ? getdate() : getdate($Timestamp); |
|
775
|
|
|
return (($d['year']-1980)*512) + ($d['mon']*32) + $d['mday']; |
|
776
|
|
|
} |
|
777
|
|
|
function _MsDos_Time($Timestamp = false) { |
|
778
|
|
|
// convert a date-time timstamp into the MS-Dos format |
|
779
|
|
|
$d = ($Timestamp===false) ? getdate() : getdate($Timestamp); |
|
780
|
|
|
return ($d['hours']*2048) + ($d['minutes']*32) + intval($d['seconds']/2); // seconds are rounded to an even number in order to save 1 bit |
|
781
|
|
|
} |
|
782
|
|
|
|
|
783
|
|
|
function _MsDos_Debug($date, $time) { |
|
784
|
|
|
// Display the formated date and time. Just for debug purpose. |
|
785
|
|
|
// date end time are encoded on 16 bits (2 bytes) : date = yyyyyyymmmmddddd , time = hhhhhnnnnnssssss |
|
786
|
|
|
$y = ($date & 65024)/512 + 1980; |
|
787
|
|
|
$m = ($date & 480)/32; |
|
788
|
|
|
$d = ($date & 31); |
|
789
|
|
|
$h = ($time & 63488)/2048; |
|
790
|
|
|
$i = ($time & 1984)/32; |
|
791
|
|
|
$s = ($time & 31) * 2; // seconds have been rounded to an even number in order to save 1 bit |
|
792
|
|
|
return $y.'-'.str_pad($m,2,'0',STR_PAD_LEFT).'-'.str_pad($d,2,'0',STR_PAD_LEFT).' '.str_pad($h,2,'0',STR_PAD_LEFT).':'.str_pad($i,2,'0',STR_PAD_LEFT).':'.str_pad($s,2,'0',STR_PAD_LEFT); |
|
793
|
|
|
} |
|
794
|
|
|
|
|
795
|
|
|
function _TxtPos($pos) { |
|
796
|
|
|
// Return the human readable position in both decimal and hexa |
|
797
|
|
|
return $pos." (h:".dechex($pos).")"; |
|
798
|
|
|
} |
|
799
|
|
|
|
|
800
|
|
|
/** |
|
801
|
|
|
* Search the record of end of the Central Directory. |
|
802
|
|
|
* Return the position of the record in the file. |
|
803
|
|
|
* Return false if the record is not found. The comment cannot exceed 65335 bytes (=FFFF). |
|
804
|
|
|
* The method is read backwards a block of 256 bytes and search the key in this block. |
|
805
|
|
|
*/ |
|
806
|
|
|
function _FindCDEnd($cd_info) { |
|
807
|
|
|
$nbr = 1; |
|
808
|
|
|
$p = false; |
|
809
|
|
|
$pos = ftell($this->ArchHnd) - 4 - 256; |
|
810
|
|
|
while ( ($p===false) && ($nbr<256) ) { |
|
811
|
|
|
if ($pos<=0) { |
|
812
|
|
|
$pos = 0; |
|
813
|
|
|
$nbr = 256; // in order to make this a last check |
|
814
|
|
|
} |
|
815
|
|
|
$this->_MoveTo($pos); |
|
816
|
|
|
$x = $this->_ReadData(256); |
|
817
|
|
|
$p = strpos($x, $cd_info); |
|
818
|
|
|
if ($p===false) { |
|
819
|
|
|
$nbr++; |
|
820
|
|
|
$pos = $pos - 256 - 256; |
|
821
|
|
|
} else { |
|
822
|
|
|
return $pos + $p; |
|
823
|
|
|
} |
|
824
|
|
|
} |
|
825
|
|
|
return false; |
|
826
|
|
|
} |
|
827
|
|
|
|
|
828
|
|
|
function _DataOuputAddedFile($Idx, $PosLoc) { |
|
829
|
|
|
|
|
830
|
|
|
$Ref =& $this->AddInfo[$Idx]; |
|
831
|
|
|
$this->_DataPrepare($Ref); // get data from external file if necessary |
|
832
|
|
|
|
|
833
|
|
|
// Other info |
|
834
|
|
|
$file_time = $Ref['file_time'] !== false ? $Ref['file_time'] : time(); |
|
835
|
|
|
$date = $this->_MsDos_Date($file_time); |
|
836
|
|
|
$time = $this->_MsDos_Time($file_time); |
|
837
|
|
|
$len_n = strlen($Ref['name']); |
|
838
|
|
|
$purp = 2048 ; // purpose // +8 to indicates that there is an extended local header |
|
839
|
|
|
|
|
840
|
|
|
// Header for file in the data section |
|
841
|
|
|
$b = 'PK'.chr(03).chr(04).str_repeat(' ',26); // signature |
|
842
|
|
|
$this->_PutDec($b,20,4,2); //vers = 20 |
|
843
|
|
|
$this->_PutDec($b,$purp,6,2); // purp |
|
844
|
|
|
$this->_PutDec($b,$Ref['meth'],8,2); // meth |
|
845
|
|
|
$this->_PutDec($b,$time,10,2); // time |
|
846
|
|
|
$this->_PutDec($b,$date,12,2); // date |
|
847
|
|
|
$this->_PutDec($b,$Ref['crc32'],14,4); // crc32 |
|
848
|
|
|
$this->_PutDec($b,$Ref['len_c'],18,4); // l_data_c |
|
849
|
|
|
$this->_PutDec($b,$Ref['len_u'],22,4); // l_data_u |
|
850
|
|
|
$this->_PutDec($b,$len_n,26,2); // l_name |
|
851
|
|
|
$this->_PutDec($b,0,28,2); // l_fields |
|
852
|
|
|
$b .= $Ref['name']; // name |
|
853
|
|
|
$b .= ''; // fields |
|
854
|
|
|
|
|
855
|
|
|
// Output the data |
|
856
|
|
|
$this->OutputFromString($b.$Ref['data']); |
|
857
|
|
|
$OutputLen = strlen($b) + $Ref['len_c']; // new position of the cursor |
|
858
|
|
|
unset($Ref['data']); // save PHP memory |
|
859
|
|
|
|
|
860
|
|
|
// Information for file in the Central Directory |
|
861
|
|
|
$b = 'PK'.chr(01).chr(02).str_repeat(' ',42); // signature |
|
862
|
|
|
$this->_PutDec($b,20,4,2); // vers_used = 20 |
|
863
|
|
|
$this->_PutDec($b,20,6,2); // vers_necess = 20 |
|
864
|
|
|
$this->_PutDec($b,$purp,8,2); // purp |
|
865
|
|
|
$this->_PutDec($b,$Ref['meth'],10,2); // meth |
|
866
|
|
|
$this->_PutDec($b,$time,12,2); // time |
|
867
|
|
|
$this->_PutDec($b,$date,14,2); // date |
|
868
|
|
|
$this->_PutDec($b,$Ref['crc32'],16,4); // crc32 |
|
869
|
|
|
$this->_PutDec($b,$Ref['len_c'],20,4); // l_data_c |
|
870
|
|
|
$this->_PutDec($b,$Ref['len_u'],24,4); // l_data_u |
|
871
|
|
|
$this->_PutDec($b,$len_n,28,2); // l_name |
|
872
|
|
|
$this->_PutDec($b,0,30,2); // l_fields |
|
873
|
|
|
$this->_PutDec($b,0,32,2); // l_comm |
|
874
|
|
|
$this->_PutDec($b,0,34,2); // disk_num |
|
875
|
|
|
$this->_PutDec($b,0,36,2); // int_file_att |
|
876
|
|
|
$this->_PutDec($b,0,38,4); // ext_file_att |
|
877
|
|
|
$this->_PutDec($b,$PosLoc,42,4); // p_loc |
|
878
|
|
|
$b .= $Ref['name']; // v_name |
|
879
|
|
|
$b .= ''; // v_fields |
|
880
|
|
|
$b .= ''; // v_comm |
|
881
|
|
|
|
|
882
|
|
|
$Ref['bin'] = $b; |
|
883
|
|
|
|
|
884
|
|
|
return $OutputLen; |
|
885
|
|
|
|
|
886
|
|
|
} |
|
887
|
|
|
|
|
888
|
|
|
function _DataCreateNewRef($Data, $DataType, $Compress, $Diff, $NameOrIdx) { |
|
889
|
|
|
|
|
890
|
|
|
$file_time = false; |
|
891
|
|
|
if (is_array($Compress)) { |
|
892
|
|
|
$result = 2; |
|
893
|
|
|
$meth = $Compress['meth']; |
|
894
|
|
|
$len_u = $Compress['len_u']; |
|
895
|
|
|
$crc32 = $Compress['crc32']; |
|
896
|
|
|
$Compress = false; |
|
897
|
|
|
} elseif ($Compress and ($this->Meth8Ok)) { |
|
898
|
|
|
$result = 1; |
|
899
|
|
|
$meth = 8; |
|
900
|
|
|
$len_u = false; // means unknown |
|
901
|
|
|
$crc32 = false; |
|
902
|
|
|
} else { |
|
903
|
|
|
$result = ($Compress) ? -1 : 0; |
|
904
|
|
|
$meth = 0; |
|
905
|
|
|
$len_u = false; |
|
906
|
|
|
$crc32 = false; |
|
907
|
|
|
$Compress = false; |
|
908
|
|
|
} |
|
909
|
|
|
|
|
910
|
|
|
// TODO support for data taken from okapi cache |
|
911
|
|
|
if ($DataType==self::TBSZIP_STRING) { |
|
912
|
|
|
$path = false; |
|
913
|
|
|
if ($Compress) { |
|
914
|
|
|
// we compress now in order to save PHP memory |
|
915
|
|
|
$len_u = strlen($Data); |
|
916
|
|
|
$crc32 = crc32($Data); |
|
917
|
|
|
$Data = gzdeflate($Data); |
|
918
|
|
|
$len_c = strlen($Data); |
|
919
|
|
|
} else { |
|
920
|
|
|
$len_c = strlen($Data); |
|
921
|
|
|
if ($len_u===false) { |
|
922
|
|
|
$len_u = $len_c; |
|
923
|
|
|
$crc32 = crc32($Data); |
|
924
|
|
|
} |
|
925
|
|
|
} |
|
926
|
|
|
} else { |
|
927
|
|
|
$path = $Data; |
|
928
|
|
|
$Data = false; |
|
929
|
|
|
$fi = stat($path); |
|
930
|
|
|
if ($fi !== false) { |
|
931
|
|
|
$fz = $fi['size']; |
|
932
|
|
|
if ($len_u===false) $len_u = $fz; |
|
933
|
|
|
$len_c = ($Compress) ? false : $fz; |
|
934
|
|
|
$file_time = $fi['mtime']; |
|
935
|
|
|
} else { |
|
936
|
|
|
return $this->RaiseError("Cannot add the file '".$path."' because it is not found."); |
|
937
|
|
|
} |
|
938
|
|
|
} |
|
939
|
|
|
|
|
940
|
|
|
// at this step $Data and $crc32 can be false only in case of external file, and $len_c is false only in case of external file to compress |
|
941
|
|
|
return array('data'=>$Data, 'path'=>$path, 'meth'=>$meth, 'len_u'=>$len_u, 'len_c'=>$len_c, |
|
942
|
|
|
'crc32'=>$crc32, 'diff'=>$Diff, 'res'=>$result, 'file_time'=>$file_time); |
|
943
|
|
|
|
|
944
|
|
|
} |
|
945
|
|
|
|
|
946
|
|
|
function _DataPrepare(&$Ref) { |
|
947
|
|
|
// returns the real size of data |
|
948
|
|
|
// TODO: support for data returned from okapi cache |
|
949
|
|
|
if ($Ref['path']!==false) { |
|
950
|
|
|
$Ref['data'] = file_get_contents($Ref['path']); |
|
951
|
|
|
if ($Ref['crc32']===false) $Ref['crc32'] = crc32($Ref['data']); |
|
952
|
|
|
if ($Ref['len_c']===false) { |
|
953
|
|
|
// means the data must be compressed |
|
954
|
|
|
$Ref['data'] = gzdeflate($Ref['data']); |
|
955
|
|
|
$Ref['len_c'] = strlen($Ref['data']); |
|
956
|
|
|
} |
|
957
|
|
|
} |
|
958
|
|
|
} |
|
959
|
|
|
/** |
|
960
|
|
|
* Return the size of the new archive, or false if it cannot be calculated (because of external file that must be compressed before to be insered) |
|
961
|
|
|
*/ |
|
962
|
|
|
function _EstimateNewArchSize($Optim=true) { |
|
963
|
|
|
|
|
964
|
|
|
if ($this->ArchIsNew) { |
|
965
|
|
|
$Len = strlen($this->CdInfo['bin']); |
|
966
|
|
|
} elseif ($this->ArchIsStream) { |
|
967
|
|
|
$x = fstat($this->ArchHnd); |
|
968
|
|
|
$Len = $x['size']; |
|
969
|
|
|
} else { |
|
970
|
|
|
$Len = filesize($this->ArchFile); |
|
971
|
|
|
} |
|
972
|
|
|
|
|
973
|
|
|
// files to replace or delete |
|
974
|
|
|
foreach ($this->ReplByPos as $i) { |
|
975
|
|
|
$Ref =& $this->ReplInfo[$i]; |
|
976
|
|
|
if ($Ref===false) { |
|
977
|
|
|
// file to delete |
|
978
|
|
|
$Info =& $this->CdFileLst[$i]; |
|
979
|
|
|
if (!isset($this->VisFileLst[$i])) { |
|
980
|
|
|
if ($Optim) return false; // if $Optimization is set to true, then we d'ont rewind to read information |
|
981
|
|
|
$this->_MoveTo($Info['p_loc']); |
|
982
|
|
|
$this->_ReadFile($i, false); |
|
983
|
|
|
} |
|
984
|
|
|
$Vis =& $this->VisFileLst[$i]; |
|
985
|
|
|
$Len += -strlen($Vis['bin']) -strlen($Info['bin']) - $Info['l_data_c']; |
|
986
|
|
|
if (isset($Vis['desc_bin'])) $Len += -strlen($Vis['desc_bin']); |
|
987
|
|
|
} elseif ($Ref['len_c']===false) { |
|
988
|
|
|
return false; // information not yet known |
|
989
|
|
|
} else { |
|
990
|
|
|
// file to replace |
|
991
|
|
|
$Len += $Ref['len_c'] + $Ref['diff']; |
|
992
|
|
|
} |
|
993
|
|
|
} |
|
994
|
|
|
|
|
995
|
|
|
// files to add |
|
996
|
|
|
$i_lst = array_keys($this->AddInfo); |
|
997
|
|
|
foreach ($i_lst as $i) { |
|
998
|
|
|
$Ref =& $this->AddInfo[$i]; |
|
999
|
|
|
if ($Ref['len_c']===false) { |
|
1000
|
|
|
return false; // information not yet known |
|
1001
|
|
|
} else { |
|
1002
|
|
|
$Len += $Ref['len_c'] + $Ref['diff']; |
|
1003
|
|
|
} |
|
1004
|
|
|
} |
|
1005
|
|
|
|
|
1006
|
|
|
return $Len; |
|
1007
|
|
|
|
|
1008
|
|
|
} |
|
1009
|
|
|
|
|
1010
|
|
|
} |
OpencachingDeutschland /
oc-server3
