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<?php |
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// $Id$ |
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/** |
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* package::i.tools |
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* |
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* php-downloader v1.0 - www.ipunkt.biz |
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* |
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* (c) 2002 - www.ipunkt.biz (rok) |
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*/ |
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/** |
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* ======================================================================= |
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* Name: |
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* tar Class |
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* |
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* Author: |
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* Josh Barger <[email protected]> |
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* |
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* Description: |
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* This class reads and writes Tape-Archive (TAR) Files and Gzip |
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* compressed TAR files, which are mainly used on UNIX systems. |
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* This class works on both windows AND unix systems, and does |
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* NOT rely on external applications!! Woohoo! |
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* |
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* Usage: |
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* Copyright (C) 2002 Josh Barger |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details at: |
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* http://www.gnu.org/copyleft/lesser.html |
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* |
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* If you use this script in your application/website, please |
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* send me an e-mail letting me know about it :) |
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* |
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* Bugs: |
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* Please report any bugs you might find to my e-mail address |
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* at [email protected]. If you have already created a fix/patch |
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* for the bug, please do send it to me so I can incorporate it into my release. |
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* |
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* Version History: |
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* 1.0 04/10/2002 - InitialRelease |
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* |
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* 2.0 04/11/2002 - Merged both tarReader and tarWriter |
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* classes into one |
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* - Added support for gzipped tar files |
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* Remember to name for .tar.gz or .tgz |
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* if you use gzip compression! |
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* :: THIS REQUIRES ZLIB EXTENSION :: |
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* - Added additional comments to |
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* functions to help users |
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* - Added ability to remove files and |
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* directories from archive |
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* 2.1 04/12/2002 - Fixed serious bug in generating tar |
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* - Created another example file |
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* - Added check to make sure ZLIB is |
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* installed before running GZIP |
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* compression on TAR |
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* 2.2 05/07/2002 - Added automatic detection of Gzipped |
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* tar files (Thanks go to Jidgen Falch |
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* for the idea) |
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* - Changed "private" functions to have |
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* special function names beginning with |
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* two underscores |
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* ======================================================================= |
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* XOOPS changes onokazu <[email protected]> |
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* |
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* 12/25/2002 - Added flag to addFile() function for binary files |
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* |
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* ======================================================================= |
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*/ |
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/** |
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* tar Class |
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* |
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* This class reads and writes Tape-Archive (TAR) Files and Gzip |
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* compressed TAR files, which are mainly used on UNIX systems. |
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* This class works on both windows AND unix systems, and does |
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* NOT rely on external applications!! Woohoo! |
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* |
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* @author Josh Barger <[email protected]> |
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* @copyright Copyright (C) 2002 Josh Barger |
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* @package class |
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*/ |
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class tar |
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{ |
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/** |
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* *#@+ |
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* Unprocessed Archive Information |
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*/ |
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public $filename; |
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public $isGzipped; |
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public $tar_file; |
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/** |
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* *#@- |
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*/ |
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/** |
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* *#@+ |
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* Processed Archive Information |
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*/ |
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public $files; |
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public $directories; |
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public $numFiles; |
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public $numDirectories; |
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/** |
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* *#@- |
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*/ |
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/** |
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* Computes the unsigned Checksum of a file's header |
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* to try to ensure valid file |
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* |
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* @param string $bytestring |
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* @return int|string |
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* @access private |
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*/ |
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private function __computeUnsignedChecksum($bytestring) |
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{ |
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$unsigned_chksum = ''; |
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for ($i = 0; $i < 512; ++$i) { |
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$unsigned_chksum += ord($bytestring[$i]); |
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} |
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for ($i = 0; $i < 8; ++$i) { |
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$unsigned_chksum -= ord($bytestring[148 + $i]); |
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$unsigned_chksum += ord(' ') * 8; |
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} |
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return $unsigned_chksum; |
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} |
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/** |
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* Converts a NULL padded string to a non-NULL padded string |
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* |
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* @param string $string |
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* @return string |
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* @access private |
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*/ |
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private function __parseNullPaddedString($string) |
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{ |
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$position = strpos($string, chr(0)); |
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return substr($string, 0, $position); |
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} |
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/** |
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* This function parses the current TAR file |
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* |
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* @return bool always TRUE |
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* @access private |
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*/ |
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private function __parseTar() |
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{ |
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// Read Files from archive |
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$tar_length = strlen($this->tar_file); |
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$main_offset = 0; |
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$this->numFiles = 0; |
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while ($main_offset < $tar_length) { |
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// If we read a block of 512 nulls, we are at the end of the archive |
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if (substr($this->tar_file, $main_offset, 512) == str_repeat(chr(0), 512)) { |
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break; |
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} |
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// Parse file name |
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$file_name = $this->__parseNullPaddedString(substr($this->tar_file, $main_offset, 100)); |
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// Parse the file mode |
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$file_mode = substr($this->tar_file, $main_offset + 100, 8); |
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// Parse the file user ID |
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$file_uid = octdec(substr($this->tar_file, $main_offset + 108, 8)); |
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// Parse the file group ID |
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$file_gid = octdec(substr($this->tar_file, $main_offset + 116, 8)); |
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// Parse the file size |
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$file_size = octdec(substr($this->tar_file, $main_offset + 124, 12)); |
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// Parse the file update time - unix timestamp format |
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$file_time = octdec(substr($this->tar_file, $main_offset + 136, 12)); |
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// Parse Checksum |
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$file_chksum = octdec(substr($this->tar_file, $main_offset + 148, 6)); |
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// Parse user name |
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$file_uname = $this->__parseNullPaddedString(substr($this->tar_file, $main_offset + 265, 32)); |
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// Parse Group name |
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$file_gname = $this->__parseNullPaddedString(substr($this->tar_file, $main_offset + 297, 32)); |
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// Make sure our file is valid |
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if ($this->__computeUnsignedChecksum(substr($this->tar_file, $main_offset, 512)) != $file_chksum) { |
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return false; |
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} |
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// Parse File Contents |
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$file_contents = substr($this->tar_file, $main_offset + 512, $file_size); |
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/** |
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* ### Unused Header Information ### |
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* $activeFile["typeflag"] = substr($this->tar_file,$main_offset + 156,1); |
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* $activeFile["linkname"] = substr($this->tar_file,$main_offset + 157,100); |
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* $activeFile["magic"] = substr($this->tar_file,$main_offset + 257,6); |
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* $activeFile["version"] = substr($this->tar_file,$main_offset + 263,2); |
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* $activeFile["devmajor"] = substr($this->tar_file,$main_offset + 329,8); |
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* $activeFile["devminor"] = substr($this->tar_file,$main_offset + 337,8); |
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* $activeFile["prefix"] = substr($this->tar_file,$main_offset + 345,155); |
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* $activeFile["endheader"] = substr($this->tar_file,$main_offset + 500,12); |
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*/ |
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if ($file_size > 0) { |
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// Increment number of files |
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$this->numFiles++; |
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// Create us a new file in our array |
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$activeFile =& $this->files[]; |
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// Asign Values |
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$activeFile["name"] = $file_name; |
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$activeFile["mode"] = $file_mode; |
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$activeFile["size"] = $file_size; |
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$activeFile["time"] = $file_time; |
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$activeFile["user_id"] = $file_uid; |
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$activeFile["group_id"] = $file_gid; |
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$activeFile["user_name"] = $file_uname; |
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$activeFile["group_name"] = $file_gname; |
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$activeFile["checksum"] = $file_chksum; |
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$activeFile["file"] = $file_contents; |
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} else { |
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// Increment number of directories |
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$this->numDirectories++; |
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// Create a new directory in our array |
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$activeDir =& $this->directories[]; |
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// Assign values |
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$activeDir["name"] = $file_name; |
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$activeDir["mode"] = $file_mode; |
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$activeDir["time"] = $file_time; |
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$activeDir["user_id"] = $file_uid; |
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$activeDir["group_id"] = $file_gid; |
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$activeDir["user_name"] = $file_uname; |
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$activeDir["group_name"] = $file_gname; |
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$activeDir["checksum"] = $file_chksum; |
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} |
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// Move our offset the number of blocks we have processed |
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$main_offset += 512 + (ceil($file_size / 512) * 512); |
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} |
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return true; |
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} |
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/** |
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* Read a non gzipped tar file in for processing. |
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* |
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* @param string $filename full filename |
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* @return bool always TRUE |
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* @access private |
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*/ |
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private function __readTar($filename = '') |
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{ |
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// Set the filename to load |
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if (!$filename) { |
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$filename = $this->filename; |
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} |
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// Read in the TAR file |
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$fp = fopen($filename, 'rb'); |
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$this->tar_file = fread($fp, filesize($filename)); |
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fclose($fp); |
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if ($this->tar_file[0] == chr(31) && $this->tar_file[1] == chr(139) && $this->tar_file[2] == chr(8)) { |
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if (!function_exists('gzinflate')) { |
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return false; |
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} |
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$this->isGzipped = true; |
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$this->tar_file = gzinflate(substr($this->tar_file, 10, -4)); |
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} |
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// Parse the TAR file |
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$this->__parseTar(); |
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return true; |
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} |
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/** |
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* Generates a TAR file from the processed data |
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* |
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* @return bool always TRUE |
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* @access private |
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*/ |
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private function __generateTar() |
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{ |
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// Clear any data currently in $this->tar_file |
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unset($this->tar_file); |
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// Generate Records for each directory, if we have directories |
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if ($this->numDirectories > 0) { |
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foreach ($this->directories as $key => $information) { |
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$header = ''; |
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// Generate tar header for this directory |
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// Filename, Permissions, UID, GID, size, Time, checksum, typeflag, linkname, magic, version, user name, group name, devmajor, devminor, prefix, end |
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$header .= str_pad($information["name"], 100, chr(0)); |
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$header .= str_pad(decoct($information["mode"]), 7, "0", STR_PAD_LEFT) . chr(0); |
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$header .= str_pad(decoct($information["user_id"]), 7, "0", STR_PAD_LEFT) . chr(0); |
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$header .= str_pad(decoct($information["group_id"]), 7, "0", STR_PAD_LEFT) . chr(0); |
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$header .= str_pad(decoct(0), 11, "0", STR_PAD_LEFT) . chr(0); |
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$header .= str_pad(decoct($information["time"]), 11, "0", STR_PAD_LEFT) . chr(0); |
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$header .= str_repeat(" ", 8); |
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$header .= "5"; |
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$header .= str_repeat(chr(0), 100); |
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$header .= str_pad("ustar", 6, chr(32)); |
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$header .= chr(32) . chr(0); |
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$header .= str_pad("", 32, chr(0)); |
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$header .= str_pad("", 32, chr(0)); |
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|
$header .= str_repeat(chr(0), 8); |
|
304
|
|
|
$header .= str_repeat(chr(0), 8); |
|
305
|
|
|
$header .= str_repeat(chr(0), 155); |
|
306
|
|
|
$header .= str_repeat(chr(0), 12); |
|
307
|
|
|
// Compute header checksum |
|
308
|
|
|
$checksum = str_pad(decoct($this->__computeUnsignedChecksum($header)), 6, "0", STR_PAD_LEFT); |
|
|
|
|
|
|
309
|
|
|
for ($i = 0; $i < 6; ++$i) { |
|
310
|
|
|
$header[(148 + $i)] = substr($checksum, $i, 1); |
|
311
|
|
|
} |
|
312
|
|
|
$header[154] = chr(0); |
|
313
|
|
|
$header[155] = chr(32); |
|
314
|
|
|
// Add new tar formatted data to tar file contents |
|
315
|
|
|
$this->tar_file .= $header; |
|
316
|
|
|
} |
|
317
|
|
|
} |
|
318
|
|
|
// Generate Records for each file, if we have files (We should...) |
|
319
|
|
|
if ($this->numFiles > 0) { |
|
320
|
|
|
$this->tar_file = ''; |
|
321
|
|
|
foreach ($this->files as $key => $information) { |
|
322
|
|
|
$header = ''; |
|
323
|
|
|
// Generate the TAR header for this file |
|
324
|
|
|
// Filename, Permissions, UID, GID, size, Time, checksum, typeflag, linkname, magic, version, user name, group name, devmajor, devminor, prefix, end |
|
325
|
|
|
$header .= str_pad($information["name"], 100, chr(0)); |
|
326
|
|
|
$header .= str_pad(decoct($information["mode"]), 7, "0", STR_PAD_LEFT) . chr(0); |
|
327
|
|
|
$header .= str_pad(decoct($information["user_id"]), 7, "0", STR_PAD_LEFT) . chr(0); |
|
328
|
|
|
$header .= str_pad(decoct($information["group_id"]), 7, "0", STR_PAD_LEFT) . chr(0); |
|
329
|
|
|
$header .= str_pad(decoct($information["size"]), 11, "0", STR_PAD_LEFT) . chr(0); |
|
330
|
|
|
$header .= str_pad(decoct($information["time"]), 11, "0", STR_PAD_LEFT) . chr(0); |
|
331
|
|
|
$header .= str_repeat(" ", 8); |
|
332
|
|
|
$header .= "0"; |
|
333
|
|
|
$header .= str_repeat(chr(0), 100); |
|
334
|
|
|
$header .= str_pad("ustar", 6, chr(32)); |
|
335
|
|
|
$header .= chr(32) . chr(0); |
|
336
|
|
|
$header .= str_pad($information["user_name"], 32, chr(0)); // How do I get a file's user name from PHP? |
|
337
|
|
|
$header .= str_pad($information["group_name"], 32, chr(0)); // How do I get a file's group name from PHP? |
|
338
|
|
|
$header .= str_repeat(chr(0), 8); |
|
339
|
|
|
$header .= str_repeat(chr(0), 8); |
|
340
|
|
|
$header .= str_repeat(chr(0), 155); |
|
341
|
|
|
$header .= str_repeat(chr(0), 12); |
|
342
|
|
|
// Compute header checksum |
|
343
|
|
|
$checksum = str_pad(decoct($this->__computeUnsignedChecksum($header)), 6, "0", STR_PAD_LEFT); |
|
344
|
|
|
for ($i = 0; $i < 6; ++$i) { |
|
345
|
|
|
$header[(148 + $i)] = substr($checksum, $i, 1); |
|
346
|
|
|
} |
|
347
|
|
|
$header[154] = chr(0); |
|
348
|
|
|
$header[155] = chr(32); |
|
349
|
|
|
// Pad file contents to byte count divisible by 512 |
|
350
|
|
|
$file_contents = str_pad($information["file"], (ceil($information["size"] / 512) * 512), chr(0)); |
|
|
|
|
|
|
351
|
|
|
// Add new tar formatted data to tar file contents |
|
352
|
|
|
$this->tar_file .= $header . $file_contents; |
|
353
|
|
|
} |
|
354
|
|
|
} |
|
355
|
|
|
// Add 512 bytes of NULLs to designate EOF |
|
356
|
|
|
$this->tar_file .= str_repeat(chr(0), 512); |
|
357
|
|
|
return true; |
|
358
|
|
|
} |
|
359
|
|
|
|
|
360
|
|
|
/** |
|
361
|
|
|
* Open a TAR file |
|
362
|
|
|
* |
|
363
|
|
|
* @param string $filename |
|
364
|
|
|
* @return bool |
|
365
|
|
|
*/ |
|
366
|
|
|
public function openTAR($filename) |
|
367
|
|
|
{ |
|
368
|
|
|
// Clear any values from previous tar archives |
|
369
|
|
|
unset($this->filename); |
|
370
|
|
|
unset($this->isGzipped); |
|
371
|
|
|
unset($this->tar_file); |
|
372
|
|
|
unset($this->files); |
|
373
|
|
|
unset($this->directories); |
|
374
|
|
|
unset($this->numFiles); |
|
375
|
|
|
unset($this->numDirectories); |
|
376
|
|
|
// If the tar file doesn't exist... |
|
377
|
|
|
if (!XoopsLoad::fileExists($filename)) { |
|
378
|
|
|
return false; |
|
379
|
|
|
} |
|
380
|
|
|
|
|
381
|
|
|
$this->filename = $filename; |
|
382
|
|
|
// Parse this file |
|
383
|
|
|
$this->__readTar(); |
|
384
|
|
|
return true; |
|
385
|
|
|
} |
|
386
|
|
|
|
|
387
|
|
|
/** |
|
388
|
|
|
* Appends a tar file to the end of the currently opened tar file. |
|
389
|
|
|
* |
|
390
|
|
|
* @param string $filename |
|
391
|
|
|
* @return bool |
|
392
|
|
|
*/ |
|
393
|
|
|
public function appendTar($filename) |
|
394
|
|
|
{ |
|
395
|
|
|
// If the tar file doesn't exist... |
|
396
|
|
|
if (!XoopsLoad::fileExists($filename)) { |
|
397
|
|
|
return false; |
|
398
|
|
|
} |
|
399
|
|
|
$this->__readTar($filename); |
|
400
|
|
|
return true; |
|
401
|
|
|
} |
|
402
|
|
|
|
|
403
|
|
|
/** |
|
404
|
|
|
* Retrieves information about a file in the current tar archive |
|
405
|
|
|
* |
|
406
|
|
|
* @param string $filename |
|
407
|
|
|
* @return string FALSE on fail |
|
408
|
|
|
*/ |
|
409
|
|
|
public function getFile($filename) |
|
410
|
|
|
{ |
|
411
|
|
|
if ($this->numFiles > 0) { |
|
412
|
|
|
foreach ($this->files as $information) { |
|
413
|
|
|
if ($information['name'] == $filename) { |
|
414
|
|
|
return $information; |
|
415
|
|
|
} |
|
416
|
|
|
} |
|
417
|
|
|
} |
|
418
|
|
|
return false; |
|
419
|
|
|
} |
|
420
|
|
|
|
|
421
|
|
|
/** |
|
422
|
|
|
* Retrieves information about a directory in the current tar archive |
|
423
|
|
|
* |
|
424
|
|
|
* @param string $dirname |
|
425
|
|
|
* @return string FALSE on fail |
|
426
|
|
|
*/ |
|
427
|
|
|
public function getDirectory($dirname) |
|
428
|
|
|
{ |
|
429
|
|
|
if ($this->numDirectories > 0) { |
|
430
|
|
|
foreach ($this->directories as $information) { |
|
431
|
|
|
if ($information['name'] == $dirname) { |
|
432
|
|
|
return $information; |
|
433
|
|
|
} |
|
434
|
|
|
} |
|
435
|
|
|
} |
|
436
|
|
|
return false; |
|
437
|
|
|
} |
|
438
|
|
|
|
|
439
|
|
|
/** |
|
440
|
|
|
* Check if this tar archive contains a specific file |
|
441
|
|
|
* |
|
442
|
|
|
* @param string $filename |
|
443
|
|
|
* @return bool |
|
444
|
|
|
*/ |
|
445
|
|
|
public function containsFile($filename) |
|
446
|
|
|
{ |
|
447
|
|
|
if ($this->numFiles > 0) { |
|
448
|
|
|
foreach ($this->files as $information) { |
|
449
|
|
|
if ($information['name'] == $filename) { |
|
450
|
|
|
return true; |
|
451
|
|
|
} |
|
452
|
|
|
} |
|
453
|
|
|
} |
|
454
|
|
|
return false; |
|
455
|
|
|
} |
|
456
|
|
|
|
|
457
|
|
|
/** |
|
458
|
|
|
* Check if this tar archive contains a specific directory |
|
459
|
|
|
* |
|
460
|
|
|
* @param string $dirname |
|
461
|
|
|
* @return bool |
|
462
|
|
|
*/ |
|
463
|
|
|
public function containsDirectory($dirname) |
|
464
|
|
|
{ |
|
465
|
|
|
if ($this->numDirectories > 0) { |
|
466
|
|
|
foreach ($this->directories as $information) { |
|
467
|
|
|
if ($information['name'] == $dirname) { |
|
468
|
|
|
return true; |
|
469
|
|
|
} |
|
470
|
|
|
} |
|
471
|
|
|
} |
|
472
|
|
|
return false; |
|
473
|
|
|
} |
|
474
|
|
|
|
|
475
|
|
|
/** |
|
476
|
|
|
* Add a directory to this tar archive |
|
477
|
|
|
* |
|
478
|
|
|
* @param string $dirname |
|
479
|
|
|
* @return bool |
|
480
|
|
|
*/ |
|
481
|
|
|
public function addDirectory($dirname) |
|
482
|
|
|
{ |
|
483
|
|
|
if (!XoopsLoad::fileExists($dirname)) { |
|
484
|
|
|
return false; |
|
485
|
|
|
} |
|
486
|
|
|
// Get directory information |
|
487
|
|
|
$file_information = stat($dirname); |
|
488
|
|
|
// Add directory to processed data |
|
489
|
|
|
$this->numDirectories++; |
|
490
|
|
|
$activeDir =& $this->directories[]; |
|
491
|
|
|
$activeDir['name'] = $dirname; |
|
492
|
|
|
$activeDir['mode'] = $file_information['mode']; |
|
493
|
|
|
$activeDir['time'] = $file_information['time']; |
|
494
|
|
|
$activeDir['user_id'] = $file_information['uid']; |
|
495
|
|
|
$activeDir['group_id'] = $file_information['gid']; |
|
496
|
|
|
$activeDir['checksum'] = isset($checksum) ? $checksum : ''; |
|
|
|
|
|
|
497
|
|
|
|
|
498
|
|
|
return true; |
|
499
|
|
|
} |
|
500
|
|
|
|
|
501
|
|
|
/** |
|
502
|
|
|
* Add a file to the tar archive |
|
503
|
|
|
* |
|
504
|
|
|
* @param string $filename |
|
505
|
|
|
* @param boolean $binary Binary file? |
|
506
|
|
|
* @return bool |
|
507
|
|
|
*/ |
|
508
|
|
|
public function addFile($filename, $binary = false) |
|
509
|
|
|
{ |
|
510
|
|
|
// Make sure the file we are adding exists! |
|
511
|
|
|
if (!XoopsLoad::fileExists($filename)) { |
|
512
|
|
|
return false; |
|
513
|
|
|
} |
|
514
|
|
|
// Make sure there are no other files in the archive that have this same filename |
|
515
|
|
|
if ($this->containsFile($filename)) { |
|
516
|
|
|
return false; |
|
517
|
|
|
} |
|
518
|
|
|
// Get file information |
|
519
|
|
|
$file_information = stat($filename); |
|
520
|
|
|
// Read in the file's contents |
|
521
|
|
|
if (!$binary) { |
|
522
|
|
|
$fp = fopen($filename, 'r'); |
|
523
|
|
|
} else { |
|
524
|
|
|
$fp = fopen($filename, 'rb'); |
|
525
|
|
|
} |
|
526
|
|
|
$file_contents = fread($fp, filesize($filename)); |
|
|
|
|
|
|
527
|
|
|
fclose($fp); |
|
|
|
|
|
|
528
|
|
|
// Add file to processed data |
|
529
|
|
|
$this->numFiles++; |
|
530
|
|
|
$activeFile =& $this->files[]; |
|
531
|
|
|
$activeFile['name'] = $filename; |
|
532
|
|
|
$activeFile['mode'] = $file_information['mode']; |
|
533
|
|
|
$activeFile['user_id'] = $file_information['uid']; |
|
534
|
|
|
$activeFile['group_id'] = $file_information['gid']; |
|
535
|
|
|
$activeFile['size'] = $file_information['size']; |
|
536
|
|
|
$activeFile['time'] = $file_information['mtime']; |
|
537
|
|
|
$activeFile['checksum'] = isset($checksum) ? $checksum : ''; |
|
|
|
|
|
|
538
|
|
|
$activeFile['user_name'] = ''; |
|
539
|
|
|
$activeFile['group_name'] = ''; |
|
540
|
|
|
$activeFile['file'] = trim($file_contents); |
|
541
|
|
|
return true; |
|
542
|
|
|
} |
|
543
|
|
|
|
|
544
|
|
|
/** |
|
545
|
|
|
* Remove a file from the tar archive |
|
546
|
|
|
* |
|
547
|
|
|
* @param string $filename |
|
548
|
|
|
* @return bool |
|
549
|
|
|
*/ |
|
550
|
|
|
public function removeFile($filename) |
|
551
|
|
|
{ |
|
552
|
|
|
if ($this->numFiles > 0) { |
|
553
|
|
|
foreach ($this->files as $key => $information) { |
|
554
|
|
|
if ($information['name'] == $filename) { |
|
555
|
|
|
$this->numFiles--; |
|
556
|
|
|
unset($this->files[$key]); |
|
557
|
|
|
return true; |
|
558
|
|
|
} |
|
559
|
|
|
} |
|
560
|
|
|
} |
|
561
|
|
|
return false; |
|
562
|
|
|
} |
|
563
|
|
|
|
|
564
|
|
|
/** |
|
565
|
|
|
* Remove a directory from the tar archive |
|
566
|
|
|
* |
|
567
|
|
|
* @param string $dirname |
|
568
|
|
|
* @return bool |
|
569
|
|
|
*/ |
|
570
|
|
|
public function removeDirectory($dirname) |
|
571
|
|
|
{ |
|
572
|
|
|
if ($this->numDirectories > 0) { |
|
573
|
|
|
foreach ($this->directories as $key => $information) { |
|
574
|
|
|
if ($information['name'] == $dirname) { |
|
575
|
|
|
$this->numDirectories--; |
|
576
|
|
|
unset($this->directories[$key]); |
|
577
|
|
|
return true; |
|
578
|
|
|
} |
|
579
|
|
|
} |
|
580
|
|
|
} |
|
581
|
|
|
return false; |
|
582
|
|
|
} |
|
583
|
|
|
|
|
584
|
|
|
/** |
|
585
|
|
|
* Write the currently loaded tar archive to disk |
|
586
|
|
|
* |
|
587
|
|
|
* @return bool |
|
588
|
|
|
*/ |
|
589
|
|
|
public function saveTar() |
|
590
|
|
|
{ |
|
591
|
|
|
if (!$this->filename) { |
|
592
|
|
|
return false; |
|
593
|
|
|
} |
|
594
|
|
|
// Write tar to current file using specified gzip compression |
|
595
|
|
|
$this->toTar($this->filename, $this->isGzipped); |
|
596
|
|
|
return true; |
|
597
|
|
|
} |
|
598
|
|
|
|
|
599
|
|
|
/** |
|
600
|
|
|
* Saves tar archive to a different file than the current file |
|
601
|
|
|
* |
|
602
|
|
|
* @param string $filename |
|
603
|
|
|
* @param bool $useGzip Use GZ compression? |
|
604
|
|
|
* @return bool |
|
605
|
|
|
*/ |
|
606
|
|
|
public function toTar($filename, $useGzip) |
|
607
|
|
|
{ |
|
608
|
|
|
if (!$filename) { |
|
609
|
|
|
return false; |
|
610
|
|
|
} |
|
611
|
|
|
// Encode processed files into TAR file format |
|
612
|
|
|
$this->__generateTar(); |
|
613
|
|
|
// GZ Compress the data if we need to |
|
614
|
|
|
if ($useGzip) { |
|
615
|
|
|
// Make sure we have gzip support |
|
616
|
|
|
if (!function_exists('gzencode')) { |
|
617
|
|
|
return false; |
|
618
|
|
|
} |
|
619
|
|
|
$file = gzencode($this->tar_file); |
|
620
|
|
|
} else { |
|
621
|
|
|
$file = $this->tar_file; |
|
622
|
|
|
} |
|
623
|
|
|
// Write the TAR file |
|
624
|
|
|
$fp = fopen($filename, 'wb'); |
|
625
|
|
|
fwrite($fp, $file); |
|
|
|
|
|
|
626
|
|
|
fclose($fp); |
|
|
|
|
|
|
627
|
|
|
return true; |
|
628
|
|
|
} |
|
629
|
|
|
|
|
630
|
|
|
/** |
|
631
|
|
|
* Sends tar archive to stdout |
|
632
|
|
|
* |
|
633
|
|
|
* @param string $filename |
|
634
|
|
|
* @param bool $useGzip Use GZ compression? |
|
635
|
|
|
* @return string |
|
636
|
|
|
*/ |
|
637
|
|
|
public function toTarOutput($filename, $useGzip) |
|
638
|
|
|
{ |
|
639
|
|
|
if (!$filename) { |
|
640
|
|
|
return false; |
|
641
|
|
|
} |
|
642
|
|
|
// Encode processed files into TAR file format |
|
643
|
|
|
$this->__generateTar(); |
|
644
|
|
|
// GZ Compress the data if we need to |
|
645
|
|
|
if ($useGzip) { |
|
646
|
|
|
// Make sure we have gzip support |
|
647
|
|
|
if (!function_exists('gzencode')) { |
|
648
|
|
|
return false; |
|
649
|
|
|
} |
|
650
|
|
|
$file = gzencode($this->tar_file); |
|
651
|
|
|
} else { |
|
652
|
|
|
$file = $this->tar_file; |
|
653
|
|
|
} |
|
654
|
|
|
return $file; |
|
655
|
|
|
} |
|
656
|
|
|
} |
|
657
|
|
|
|
XOOPS /
XoopsCore
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