mirror of
https://gitlab.com/harald.mueller/aktuelle.kurse.git
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1127 lines
38 KiB
PHP
1127 lines
38 KiB
PHP
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<?php
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/* vim: set ts=4 sw=4: */
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2002 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.02 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Author: Vincent Blavet <vincent@blavet.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: Tar.php,v 1.5 2002/02/28 08:27:05 sebastian Exp $
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require_once 'PEAR.php';
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/**
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* Creates a (compressed) Tar archive
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*
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* @author Vincent Blavet <vincent@blavet.net>
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* @version $Revision: 1.5 $
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* @package Archive
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*/
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class Archive_Tar extends PEAR
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{
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/**
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* @var string Name of the Tar
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*/
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var $_tarname='';
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/**
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* @var boolean if true, the Tar file will be gzipped
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*/
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var $_compress=false;
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/**
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* @var file descriptor
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*/
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var $_file=0;
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/**
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* @var string Local Tar name of a remote Tar (http:// or ftp://)
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*/
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var $_temp_tarname='';
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// {{{ constructor
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/**
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* Archive_Tar Class constructor. This flavour of the constructor only
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* declare a new Archive_Tar object, identifying it by the name of the
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* tar file.
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* If the compress argument is set the tar will be read or created as a
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* gzip compressed TAR file.
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*
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* @param string $p_tarname The name of the tar archive to create
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* @param boolean $p_compress if true, the archive will be gezip(ped)
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* @access public
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*/
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function Archive_Tar($p_tarname, $p_compress = false)
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{
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$this->PEAR();
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$this->_tarname = $p_tarname;
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if ($p_compress) { // assert zlib extension support
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$extname = 'zlib';
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if (!extension_loaded($extname)) {
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$dlext = (OS_WINDOWS) ? '.dll' : '.so';
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@dl($extname . $dlext);
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}
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if (!extension_loaded($extname)) {
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die("The extension '$extname' couldn't be loaded. ".
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'Probably you don\'t have support in your PHP '.
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'to this extension');
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return false;
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}
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}
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$this->_compress = $p_compress;
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}
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// }}}
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// {{{ destructor
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function _Archive_Tar()
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{
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$this->_close();
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// ----- Look for a local copy to delete
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if ($this->_temp_tarname != '')
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@unlink($this->_temp_tarname);
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$this->_PEAR();
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}
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// }}}
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// {{{ create()
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/**
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* This method creates the archive file and add the files / directories
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* that are listed in $p_filelist.
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* If a file with the same name exist and is writable, it is replaced
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* by the new tar.
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* The method return false and a PEAR error text.
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* The $p_filelist parameter can be an array of string, each string
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* representing a filename or a directory name with their path if
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* needed. It can also be a single string with names separated by a
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* single blank.
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* For each directory added in the archive, the files and
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* sub-directories are also added.
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* See also createModify() method for more details.
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*
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* @param array $p_filelist An array of filenames and directory names, or a single
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* string with names separated by a single blank space.
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* @return true on success, false on error.
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* @see createModify()
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* @access public
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*/
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function create($p_filelist)
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{
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return $this->createModify($p_filelist, '', '');
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}
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// }}}
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// {{{ add()
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/**
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* This method add the files / directories that are listed in $p_filelist in
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* the archive. If the archive does not exist it is created.
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* The method return false and a PEAR error text.
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* The files and directories listed are only added at the end of the archive,
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* even if a file with the same name is already archived.
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* See also createModify() method for more details.
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*
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* @param array $p_filelist An array of filenames and directory names, or a single
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* string with names separated by a single blank space.
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* @return true on success, false on error.
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* @see createModify()
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* @access public
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*/
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function add($p_filelist)
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{
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return $this->addModify($p_filelist, '', '');
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}
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// }}}
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// {{{ extract()
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function extract($p_path='')
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{
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return $this->extractModify($p_path, '');
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}
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// }}}
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// {{{ listContent()
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function listContent()
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{
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$v_list_detail = array();
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if ($this->_openRead()) {
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if (!$this->_extractList('', $v_list_detail, "list", '', '')) {
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unset($v_list_detail);
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return(0);
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}
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$this->_close();
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}
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return $v_list_detail;
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}
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// }}}
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// {{{ createModify()
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/**
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* This method creates the archive file and add the files / directories
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* that are listed in $p_filelist.
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* If the file already exists and is writable, it is replaced by the
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* new tar. It is a create and not an add. If the file exists and is
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* read-only or is a directory it is not replaced. The method return
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* false and a PEAR error text.
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* The $p_filelist parameter can be an array of string, each string
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* representing a filename or a directory name with their path if
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* needed. It can also be a single string with names separated by a
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* single blank.
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* The path indicated in $p_remove_dir will be removed from the
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* memorized path of each file / directory listed when this path
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* exists. By default nothing is removed (empty path '')
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* The path indicated in $p_add_dir will be added at the beginning of
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* the memorized path of each file / directory listed. However it can
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* be set to empty ''. The adding of a path is done after the removing
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* of path.
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* The path add/remove ability enables the user to prepare an archive
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* for extraction in a different path than the origin files are.
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* See also addModify() method for file adding properties.
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*
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* @param array $p_filelist An array of filenames and directory names, or a single
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* string with names separated by a single blank space.
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* @param string $p_add_dir A string which contains a path to be added to the
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* memorized path of each element in the list.
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* @param string $p_remove_dir A string which contains a path to be removed from
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* the memorized path of each element in the list, when
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* relevant.
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* @return boolean true on success, false on error.
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* @access public
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* @see addModify()
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*/
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function createModify($p_filelist, $p_add_dir, $p_remove_dir='')
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{
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$v_result = true;
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if (!$this->_openWrite())
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return false;
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if ($p_filelist != '') {
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if (is_array($p_filelist))
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$v_list = $p_filelist;
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elseif (is_string($p_filelist))
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$v_list = explode(" ", $p_filelist);
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else {
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$this->_cleanFile();
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$this->_error('Invalid file list');
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return false;
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}
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$v_result = $this->_addList($v_list, $p_add_dir, $p_remove_dir);
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}
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if ($v_result) {
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$this->_writeFooter();
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$this->_close();
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} else
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$this->_cleanFile();
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return $v_result;
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}
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// }}}
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// {{{ addModify()
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/**
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* This method add the files / directories listed in $p_filelist at the
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* end of the existing archive. If the archive does not yet exists it
|
||
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* is created.
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||
|
* The $p_filelist parameter can be an array of string, each string
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|
* representing a filename or a directory name with their path if
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||
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* needed. It can also be a single string with names separated by a
|
||
|
* single blank.
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||
|
* The path indicated in $p_remove_dir will be removed from the
|
||
|
* memorized path of each file / directory listed when this path
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||
|
* exists. By default nothing is removed (empty path '')
|
||
|
* The path indicated in $p_add_dir will be added at the beginning of
|
||
|
* the memorized path of each file / directory listed. However it can
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||
|
* be set to empty ''. The adding of a path is done after the removing
|
||
|
* of path.
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||
|
* The path add/remove ability enables the user to prepare an archive
|
||
|
* for extraction in a different path than the origin files are.
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||
|
* If a file/dir is already in the archive it will only be added at the
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||
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* end of the archive. There is no update of the existing archived
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||
|
* file/dir. However while extracting the archive, the last file will
|
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* replace the first one. This results in a none optimization of the
|
||
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* archive size.
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||
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* If a file/dir does not exist the file/dir is ignored. However an
|
||
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* error text is send to PEAR error.
|
||
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* If a file/dir is not readable the file/dir is ignored. However an
|
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* error text is send to PEAR error.
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||
|
* If the resulting filename/dirname (after the add/remove option or
|
||
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* not) string is greater than 99 char, the file/dir is
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||
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* ignored. However an error text is send to PEAR error.
|
||
|
*
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||
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* @param array $p_filelist An array of filenames and directory names, or a single
|
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|
* string with names separated by a single blank space.
|
||
|
* @param string $p_add_dir A string which contains a path to be added to the
|
||
|
* memorized path of each element in the list.
|
||
|
* @param string $p_remove_dir A string which contains a path to be removed from
|
||
|
* the memorized path of each element in the list, when
|
||
|
* relevant.
|
||
|
* @return true on success, false on error.
|
||
|
* @access public
|
||
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*/
|
||
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function addModify($p_filelist, $p_add_dir, $p_remove_dir='')
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{
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$v_result = true;
|
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|
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||
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if (!@is_file($this->_tarname))
|
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$v_result = $this->createModify($p_filelist, $p_add_dir, $p_remove_dir);
|
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else {
|
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if (is_array($p_filelist))
|
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$v_list = $p_filelist;
|
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|
elseif (is_string($p_filelist))
|
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$v_list = explode(" ", $p_filelist);
|
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else {
|
||
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$this->_error('Invalid file list');
|
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return false;
|
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|
}
|
||
|
|
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$v_result = $this->_append($v_list, $p_add_dir, $p_remove_dir);
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||
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}
|
||
|
|
||
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return $v_result;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ extractModify()
|
||
|
/**
|
||
|
* This method extract all the content of the archive in the directory
|
||
|
* indicated by $p_path. When relevant the memorized path of the
|
||
|
* files/dir can be modified by removing the $p_remove_path path at the
|
||
|
* beginning of the file/dir path.
|
||
|
* While extracting a file, if the directory path does not exists it is
|
||
|
* created.
|
||
|
* While extracting a file, if the file already exists it is replaced
|
||
|
* without looking for last modification date.
|
||
|
* While extracting a file, if the file already exists and is write
|
||
|
* protected, the extraction is aborted.
|
||
|
* While extracting a file, if a directory with the same name already
|
||
|
* exists, the extraction is aborted.
|
||
|
* While extracting a directory, if a file with the same name already
|
||
|
* exists, the extraction is aborted.
|
||
|
* While extracting a file/directory if the destination directory exist
|
||
|
* and is write protected, or does not exist but can not be created,
|
||
|
* the extraction is aborted.
|
||
|
* If after extraction an extracted file does not show the correct
|
||
|
* stored file size, the extraction is aborted.
|
||
|
* When the extraction is aborted, a PEAR error text is set and false
|
||
|
* is returned. However the result can be a partial extraction that may
|
||
|
* need to be manually cleaned.
|
||
|
*
|
||
|
* @param string $p_path The path of the directory where the files/dir need to by
|
||
|
* extracted.
|
||
|
* @param string $p_remove_path Part of the memorized path that can be removed if
|
||
|
* present at the beginning of the file/dir path.
|
||
|
* @return boolean true on success, false on error.
|
||
|
* @access public
|
||
|
* @see extractList()
|
||
|
*/
|
||
|
function extractModify($p_path, $p_remove_path)
|
||
|
{
|
||
|
$v_result = true;
|
||
|
$v_list_detail = array();
|
||
|
|
||
|
if ($v_result = $this->_openRead()) {
|
||
|
$v_result = $this->_extractList($p_path, $v_list_detail, "complete", 0, $p_remove_path);
|
||
|
$this->_close();
|
||
|
}
|
||
|
|
||
|
return $v_result;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ extractList()
|
||
|
/**
|
||
|
* This method extract from the archive only the files indicated in the
|
||
|
* $p_filelist. These files are extracted in the current directory or
|
||
|
* in the directory indicated by the optional $p_path parameter.
|
||
|
* If indicated the $p_remove_path can be used in the same way as it is
|
||
|
* used in extractModify() method.
|
||
|
* @param array $p_filelist An array of filenames and directory names, or a single
|
||
|
* string with names separated by a single blank space.
|
||
|
* @param string $p_path The path of the directory where the files/dir need to by
|
||
|
* extracted.
|
||
|
* @param string $p_remove_path Part of the memorized path that can be removed if
|
||
|
* present at the beginning of the file/dir path.
|
||
|
* @return true on success, false on error.
|
||
|
* @access public
|
||
|
* @see extractModify()
|
||
|
*/
|
||
|
function extractList($p_filelist, $p_path='', $p_remove_path='')
|
||
|
{
|
||
|
$v_result = true;
|
||
|
$v_list_detail = array();
|
||
|
|
||
|
if (is_array($p_filelist))
|
||
|
$v_list = $p_filelist;
|
||
|
elseif (is_string($p_filelist))
|
||
|
$v_list = explode(" ", $p_filelist);
|
||
|
else {
|
||
|
$this->_error('Invalid string list');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if ($v_result = $this->_openRead()) {
|
||
|
$v_result = $this->_extractList($p_path, $v_list_detail, "complete", $v_list, $p_remove_path);
|
||
|
$this->_close();
|
||
|
}
|
||
|
|
||
|
return $v_result;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _error()
|
||
|
function _error($p_message)
|
||
|
{
|
||
|
// ----- To be completed
|
||
|
$this->raiseError($p_message);
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _warning()
|
||
|
function _warning($p_message)
|
||
|
{
|
||
|
// ----- To be completed
|
||
|
$this->raiseError($p_message);
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _openWrite()
|
||
|
function _openWrite()
|
||
|
{
|
||
|
if ($this->_compress)
|
||
|
$this->_file = @gzopen($this->_tarname, "w");
|
||
|
else
|
||
|
$this->_file = @fopen($this->_tarname, "w");
|
||
|
|
||
|
if ($this->_file == 0) {
|
||
|
$this->_error('Unable to open in write mode \''.$this->_tarname.'\'');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _openRead()
|
||
|
function _openRead()
|
||
|
{
|
||
|
if (strtolower(substr($this->_tarname, 0, 7)) == 'http://') {
|
||
|
|
||
|
// ----- Look if a local copy need to be done
|
||
|
if ($this->_temp_tarname == '') {
|
||
|
$this->_temp_tarname = uniqid('tar').'.tmp';
|
||
|
if (!$v_file_from = @fopen($this->_tarname, 'rb')) {
|
||
|
$this->_error('Unable to open in read mode \''.$this->_tarname.'\'');
|
||
|
$this->_temp_tarname = '';
|
||
|
return false;
|
||
|
}
|
||
|
if (!$v_file_to = @fopen($this->_temp_tarname, 'wb')) {
|
||
|
$this->_error('Unable to open in write mode \''.$this->_temp_tarname.'\'');
|
||
|
$this->_temp_tarname = '';
|
||
|
return false;
|
||
|
}
|
||
|
while ($v_data = @fread($v_file_from, 1024))
|
||
|
@fwrite($v_file_to, $v_data);
|
||
|
@fclose($v_file_from);
|
||
|
@fclose($v_file_to);
|
||
|
}
|
||
|
|
||
|
// ----- File to open if the local copy
|
||
|
$v_filename = $this->_temp_tarname;
|
||
|
|
||
|
} else
|
||
|
// ----- File to open if the normal Tar file
|
||
|
$v_filename = $this->_tarname;
|
||
|
|
||
|
if ($this->_compress)
|
||
|
$this->_file = @gzopen($v_filename, "rb");
|
||
|
else
|
||
|
$this->_file = @fopen($v_filename, "rb");
|
||
|
|
||
|
if ($this->_file == 0) {
|
||
|
$this->_error('Unable to open in read mode \''.$v_filename.'\'');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _openReadWrite()
|
||
|
function _openReadWrite()
|
||
|
{
|
||
|
if ($this->_compress)
|
||
|
$this->_file = @gzopen($this->_tarname, "r+b");
|
||
|
else
|
||
|
$this->_file = @fopen($this->_tarname, "r+b");
|
||
|
|
||
|
if ($this->_file == 0) {
|
||
|
$this->_error('Unable to open in read/write mode \''.$this->_tarname.'\'');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _close()
|
||
|
function _close()
|
||
|
{
|
||
|
if (isset($this->_file)) {
|
||
|
if ($this->_compress)
|
||
|
@gzclose($this->_file);
|
||
|
else
|
||
|
@fclose($this->_file);
|
||
|
|
||
|
$this->_file = 0;
|
||
|
}
|
||
|
|
||
|
// ----- Look if a local copy need to be erase
|
||
|
// Note that it might be interesting to keep the url for a time : ToDo
|
||
|
if ($this->_temp_tarname != '') {
|
||
|
@unlink($this->_temp_tarname);
|
||
|
$this->_temp_tarname = '';
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _cleanFile()
|
||
|
function _cleanFile()
|
||
|
{
|
||
|
$this->_close();
|
||
|
|
||
|
// ----- Look for a local copy
|
||
|
if ($this->_temp_tarname != '') {
|
||
|
// ----- Remove the local copy but not the remote tarname
|
||
|
@unlink($this->_temp_tarname);
|
||
|
$this->_temp_tarname = '';
|
||
|
} else {
|
||
|
// ----- Remove the local tarname file
|
||
|
@unlink($this->_tarname);
|
||
|
}
|
||
|
$this->_tarname = '';
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _writeFooter()
|
||
|
function _writeFooter()
|
||
|
{
|
||
|
if ($this->_file) {
|
||
|
// ----- Write the last 0 filled block for end of archive
|
||
|
$v_binary_data = pack("a512", '');
|
||
|
if ($this->_compress)
|
||
|
@gzputs($this->_file, $v_binary_data);
|
||
|
else
|
||
|
@fputs($this->_file, $v_binary_data);
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _addList()
|
||
|
function _addList($p_list, $p_add_dir, $p_remove_dir)
|
||
|
{
|
||
|
$v_result=true;
|
||
|
$v_header = array();
|
||
|
|
||
|
if (!$this->_file) {
|
||
|
$this->_error('Invalid file descriptor');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (sizeof($p_list) == 0)
|
||
|
return true;
|
||
|
|
||
|
for ($j=0; ($j<count($p_list)) && ($v_result); $j++) {
|
||
|
$v_filename = $p_list[$j];
|
||
|
|
||
|
// ----- Skip the current tar name
|
||
|
if ($v_filename == $this->_tarname)
|
||
|
continue;
|
||
|
|
||
|
if ($v_filename == '')
|
||
|
continue;
|
||
|
|
||
|
if (!file_exists($v_filename)) {
|
||
|
$this->_warning("File '$v_filename' does not exist");
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
// ----- Add the file or directory header
|
||
|
if (!$this->_addFile($v_filename, $v_header, $p_add_dir, $p_remove_dir))
|
||
|
return false;
|
||
|
|
||
|
if (@is_dir($v_filename)) {
|
||
|
if (!($p_hdir = opendir($v_filename))) {
|
||
|
$this->_warning("Directory '$v_filename' can not be read");
|
||
|
continue;
|
||
|
}
|
||
|
$p_hitem = readdir($p_hdir); // '.' directory
|
||
|
$p_hitem = readdir($p_hdir); // '..' directory
|
||
|
while ($p_hitem = readdir($p_hdir)) {
|
||
|
if ($v_filename != ".")
|
||
|
$p_temp_list[0] = $v_filename.'/'.$p_hitem;
|
||
|
else
|
||
|
$p_temp_list[0] = $p_hitem;
|
||
|
|
||
|
$v_result = $this->_addList($p_temp_list, $p_add_dir, $p_remove_dir);
|
||
|
}
|
||
|
|
||
|
unset($p_temp_list);
|
||
|
unset($p_hdir);
|
||
|
unset($p_hitem);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $v_result;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _addFile()
|
||
|
function _addFile($p_filename, &$p_header, $p_add_dir, $p_remove_dir)
|
||
|
{
|
||
|
if (!$this->_file) {
|
||
|
$this->_error('Invalid file descriptor');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if ($p_filename == '') {
|
||
|
$this->_error('Invalid file name');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// ----- Calculate the stored filename
|
||
|
$v_stored_filename = $p_filename;
|
||
|
if (strcmp($p_filename, $p_remove_dir) == 0) {
|
||
|
return true;
|
||
|
}
|
||
|
if ($p_remove_dir != '') {
|
||
|
if (substr($p_remove_dir, -1) != '/')
|
||
|
$p_remove_dir .= '/';
|
||
|
|
||
|
if (substr($p_filename, 0, strlen($p_remove_dir)) == $p_remove_dir)
|
||
|
$v_stored_filename = substr($p_filename, strlen($p_remove_dir));
|
||
|
}
|
||
|
if ($p_add_dir != '') {
|
||
|
if (substr($p_add_dir, -1) == '/')
|
||
|
$v_stored_filename = $p_add_dir.$v_stored_filename;
|
||
|
else
|
||
|
$v_stored_filename = $p_add_dir.'/'.$v_stored_filename;
|
||
|
}
|
||
|
|
||
|
if (strlen($v_stored_filename) > 99) {
|
||
|
$this->_warning("Stored file name is too long (max. 99) : '$v_stored_filename'");
|
||
|
fclose($v_file);
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
if (is_file($p_filename)) {
|
||
|
if (($v_file = @fopen($p_filename, "rb")) == 0) {
|
||
|
$this->_warning("Unable to open file '$p_filename' in binary read mode");
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
if (!$this->_writeHeader($p_filename, $v_stored_filename))
|
||
|
return false;
|
||
|
|
||
|
while (($v_buffer = fread($v_file, 512)) != '') {
|
||
|
$v_binary_data = pack("a512", "$v_buffer");
|
||
|
if ($this->_compress)
|
||
|
@gzputs($this->_file, $v_binary_data);
|
||
|
else
|
||
|
@fputs($this->_file, $v_binary_data);
|
||
|
}
|
||
|
|
||
|
fclose($v_file);
|
||
|
|
||
|
} else {
|
||
|
// ----- Only header for dir
|
||
|
if (!$this->_writeHeader($p_filename, $v_stored_filename))
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _writeHeader()
|
||
|
function _writeHeader($p_filename, $p_stored_filename)
|
||
|
{
|
||
|
if ($p_stored_filename == '')
|
||
|
$p_stored_filename = $p_filename;
|
||
|
$v_reduce_filename = $this->_pathReduction($p_stored_filename);
|
||
|
|
||
|
$v_info = stat($p_filename);
|
||
|
$v_uid = sprintf("%6s ", DecOct($v_info[4]));
|
||
|
$v_gid = sprintf("%6s ", DecOct($v_info[5]));
|
||
|
$v_perms = sprintf("%6s ", DecOct(fileperms($p_filename)));
|
||
|
|
||
|
$v_mtime = sprintf("%11s", DecOct(filemtime($p_filename)));
|
||
|
|
||
|
if (@is_dir($p_filename)) {
|
||
|
$v_typeflag = "5";
|
||
|
$v_size = sprintf("%11s ", DecOct(0));
|
||
|
} else {
|
||
|
$v_typeflag = '';
|
||
|
clearstatcache();
|
||
|
$v_size = sprintf("%11s ", DecOct(filesize($p_filename)));
|
||
|
}
|
||
|
|
||
|
$v_linkname = '';
|
||
|
|
||
|
$v_magic = '';
|
||
|
|
||
|
$v_version = '';
|
||
|
|
||
|
$v_uname = '';
|
||
|
|
||
|
$v_gname = '';
|
||
|
|
||
|
$v_devmajor = '';
|
||
|
|
||
|
$v_devminor = '';
|
||
|
|
||
|
$v_prefix = '';
|
||
|
|
||
|
$v_binary_data_first = pack("a100a8a8a8a12A12", $v_reduce_filename, $v_perms, $v_uid, $v_gid, $v_size, $v_mtime);
|
||
|
$v_binary_data_last = pack("a1a100a6a2a32a32a8a8a155a12", $v_typeflag, $v_linkname, $v_magic, $v_version, $v_uname, $v_gname, $v_devmajor, $v_devminor, $v_prefix, '');
|
||
|
|
||
|
// ----- Calculate the checksum
|
||
|
$v_checksum = 0;
|
||
|
// ..... First part of the header
|
||
|
for ($i=0; $i<148; $i++)
|
||
|
$v_checksum += ord(substr($v_binary_data_first,$i,1));
|
||
|
// ..... Ignore the checksum value and replace it by ' ' (space)
|
||
|
for ($i=148; $i<156; $i++)
|
||
|
$v_checksum += ord(' ');
|
||
|
// ..... Last part of the header
|
||
|
for ($i=156, $j=0; $i<512; $i++, $j++)
|
||
|
$v_checksum += ord(substr($v_binary_data_last,$j,1));
|
||
|
|
||
|
// ----- Write the first 148 bytes of the header in the archive
|
||
|
if ($this->_compress)
|
||
|
@gzputs($this->_file, $v_binary_data_first, 148);
|
||
|
else
|
||
|
@fputs($this->_file, $v_binary_data_first, 148);
|
||
|
|
||
|
// ----- Write the calculated checksum
|
||
|
$v_checksum = sprintf("%6s ", DecOct($v_checksum));
|
||
|
$v_binary_data = pack("a8", $v_checksum);
|
||
|
if ($this->_compress)
|
||
|
@gzputs($this->_file, $v_binary_data, 8);
|
||
|
else
|
||
|
@fputs($this->_file, $v_binary_data, 8);
|
||
|
|
||
|
// ----- Write the last 356 bytes of the header in the archive
|
||
|
if ($this->_compress)
|
||
|
@gzputs($this->_file, $v_binary_data_last, 356);
|
||
|
else
|
||
|
@fputs($this->_file, $v_binary_data_last, 356);
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _readHeader()
|
||
|
function _readHeader($v_binary_data, &$v_header)
|
||
|
{
|
||
|
if (strlen($v_binary_data)==0) {
|
||
|
$v_header['filename'] = '';
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
if (strlen($v_binary_data) != 512) {
|
||
|
$v_header['filename'] = '';
|
||
|
$this->_error('Invalid block size : '.strlen($v_binary_data));
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// ----- Calculate the checksum
|
||
|
$v_checksum = 0;
|
||
|
// ..... First part of the header
|
||
|
for ($i=0; $i<148; $i++)
|
||
|
$v_checksum+=ord(substr($v_binary_data,$i,1));
|
||
|
// ..... Ignore the checksum value and replace it by ' ' (space)
|
||
|
for ($i=148; $i<156; $i++)
|
||
|
$v_checksum += ord(' ');
|
||
|
// ..... Last part of the header
|
||
|
for ($i=156; $i<512; $i++)
|
||
|
$v_checksum+=ord(substr($v_binary_data,$i,1));
|
||
|
|
||
|
$v_data = unpack("a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/a8checksum/a1typeflag/a100link/a6magic/a2version/a32uname/a32gname/a8devmajor/a8devminor", $v_binary_data);
|
||
|
|
||
|
// ----- Extract the checksum
|
||
|
$v_header['checksum'] = OctDec(trim($v_data['checksum']));
|
||
|
if ($v_header['checksum'] != $v_checksum) {
|
||
|
$v_header['filename'] = '';
|
||
|
|
||
|
// ----- Look for last block (empty block)
|
||
|
if (($v_checksum == 256) && ($v_header['checksum'] == 0))
|
||
|
return true;
|
||
|
|
||
|
$this->_error('Invalid checksum : '.$v_checksum.' calculated, '.$v_header['checksum'].' expected');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// ----- Extract the properties
|
||
|
$v_header['filename'] = trim($v_data['filename']);
|
||
|
$v_header['mode'] = OctDec(trim($v_data['mode']));
|
||
|
$v_header['uid'] = OctDec(trim($v_data['uid']));
|
||
|
$v_header['gid'] = OctDec(trim($v_data['gid']));
|
||
|
$v_header['size'] = OctDec(trim($v_data['size']));
|
||
|
$v_header['mtime'] = OctDec(trim($v_data['mtime']));
|
||
|
if (($v_header['typeflag'] = $v_data['typeflag']) == "5") {
|
||
|
$v_header['size'] = 0;
|
||
|
}
|
||
|
/* ----- All these fields are removed form the header because they do not carry interesting info
|
||
|
$v_header[link] = trim($v_data[link]);
|
||
|
$v_header[magic] = trim($v_data[magic]);
|
||
|
$v_header[version] = trim($v_data[version]);
|
||
|
$v_header[uname] = trim($v_data[uname]);
|
||
|
$v_header[gname] = trim($v_data[gname]);
|
||
|
$v_header[devmajor] = trim($v_data[devmajor]);
|
||
|
$v_header[devminor] = trim($v_data[devminor]);
|
||
|
*/
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _extractList()
|
||
|
function _extractList($p_path, &$p_list_detail, $p_mode, $p_file_list, $p_remove_path)
|
||
|
{
|
||
|
$v_result=true;
|
||
|
$v_nb = 0;
|
||
|
$v_extract_all = true;
|
||
|
$v_listing = false;
|
||
|
|
||
|
// ----- Look for removing the WINDOW '\'
|
||
|
if (OS_WINDOWS && strpos($p_path, '\\')) {
|
||
|
str_replace('\\', '/', $p_path);
|
||
|
}
|
||
|
|
||
|
if ($p_path == '' || (substr($p_path, 0, 1) != '/' && substr($p_path, 0, 3) != "../" && !strpos($p_path, ':'))) {
|
||
|
$p_path = "./".$p_path;
|
||
|
}
|
||
|
|
||
|
// ----- Look for path to remove format (should end by /)
|
||
|
if (($p_remove_path != '') && (substr($p_remove_path, -1) != '/'))
|
||
|
$p_remove_path .= '/';
|
||
|
$p_remove_path_size = strlen($p_remove_path);
|
||
|
|
||
|
switch ($p_mode) {
|
||
|
case "complete" :
|
||
|
$v_extract_all = TRUE;
|
||
|
$v_listing = FALSE;
|
||
|
break;
|
||
|
case "partial" :
|
||
|
$v_extract_all = FALSE;
|
||
|
$v_listing = FALSE;
|
||
|
break;
|
||
|
case "list" :
|
||
|
$v_extract_all = FALSE;
|
||
|
$v_listing = TRUE;
|
||
|
break;
|
||
|
default :
|
||
|
$this->_error('Invalid extract mode ('.$p_mode.')');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
clearstatcache();
|
||
|
|
||
|
While (!($v_end_of_file = ($this->_compress?@gzeof($this->_file):@feof($this->_file))))
|
||
|
{
|
||
|
$v_extract_file = FALSE;
|
||
|
$v_extraction_stopped = 0;
|
||
|
|
||
|
if ($this->_compress)
|
||
|
$v_binary_data = @gzread($this->_file, 512);
|
||
|
else
|
||
|
$v_binary_data = @fread($this->_file, 512);
|
||
|
|
||
|
if (!$this->_readHeader($v_binary_data, $v_header))
|
||
|
return false;
|
||
|
|
||
|
if ($v_header['filename'] == '')
|
||
|
continue;
|
||
|
|
||
|
if ((!$v_extract_all) && (is_array($p_file_list))) {
|
||
|
// ----- By default no unzip if the file is not found
|
||
|
$v_extract_file = false;
|
||
|
|
||
|
for ($i=0; $i<sizeof($p_file_list); $i++) {
|
||
|
// ----- Look if it is a directory
|
||
|
if (substr($p_file_list[$i], -1) == '/') {
|
||
|
// ----- Look if the directory is in the filename path
|
||
|
if ((strlen($v_header['filename']) > strlen($p_file_list[$i])) && (substr($v_header['filename'], 0, strlen($p_file_list[$i])) == $p_file_list[$i])) {
|
||
|
$v_extract_file = TRUE;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// ----- It is a file, so compare the file names
|
||
|
elseif ($p_file_list[$i] == $v_header['filename']) {
|
||
|
$v_extract_file = TRUE;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
$v_extract_file = TRUE;
|
||
|
}
|
||
|
|
||
|
// ----- Look if this file need to be extracted
|
||
|
if (($v_extract_file) && (!$v_listing))
|
||
|
{
|
||
|
if (($p_remove_path != '')
|
||
|
&& (substr($v_header['filename'], 0, $p_remove_path_size) == $p_remove_path))
|
||
|
$v_header['filename'] = substr($v_header['filename'], $p_remove_path_size);
|
||
|
if (($p_path != "./") && ($p_path != '/')) {
|
||
|
while (substr($p_path, -1) == '/')
|
||
|
$p_path = substr($p_path, 0, strlen($p_path)-1);
|
||
|
|
||
|
if (substr($v_header['filename'], 0, 1) == '/')
|
||
|
$v_header['filename'] = $p_path.$v_header['filename'];
|
||
|
else
|
||
|
$v_header['filename'] = $p_path.'/'.$v_header['filename'];
|
||
|
}
|
||
|
if (file_exists($v_header['filename'])) {
|
||
|
if ((@is_dir($v_header['filename'])) && ($v_header['typeflag'] == '')) {
|
||
|
$this->_error('File '.$v_header['filename'].' already exists as a directory');
|
||
|
return false;
|
||
|
}
|
||
|
if ((is_file($v_header['filename'])) && ($v_header['typeflag'] == "5")) {
|
||
|
$this->_error('Directory '.$v_header['filename'].' already exists as a file');
|
||
|
return false;
|
||
|
}
|
||
|
if (!is_writeable($v_header['filename'])) {
|
||
|
$this->_error('File '.$v_header['filename'].' already exists and is write protected');
|
||
|
return false;
|
||
|
}
|
||
|
if (filemtime($v_header['filename']) > $v_header['mtime']) {
|
||
|
// To be completed : An error or silent no replace ?
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// ----- Check the directory availability and create it if necessary
|
||
|
elseif (($v_result = $this->_dirCheck(($v_header['typeflag'] == "5"?$v_header['filename']:dirname($v_header['filename'])))) != 1) {
|
||
|
$this->_error('Unable to create path for '.$v_header['filename']);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if ($v_extract_file) {
|
||
|
if ($v_header['typeflag'] == "5") {
|
||
|
if (!@file_exists($v_header['filename'])) {
|
||
|
if (!@mkdir($v_header['filename'], 0777)) {
|
||
|
$this->_error('Unable to create directory {'.$v_header['filename'].'}');
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
if (($v_dest_file = @fopen($v_header['filename'], "wb")) == 0) {
|
||
|
$this->_error('Error while opening {'.$v_header['filename'].'} in write binary mode');
|
||
|
return false;
|
||
|
} else {
|
||
|
$n = floor($v_header['size']/512);
|
||
|
for ($i=0; $i<$n; $i++) {
|
||
|
if ($this->_compress)
|
||
|
$v_content = @gzread($this->_file, 512);
|
||
|
else
|
||
|
$v_content = @fread($this->_file, 512);
|
||
|
fwrite($v_dest_file, $v_content, 512);
|
||
|
}
|
||
|
if (($v_header['size'] % 512) != 0) {
|
||
|
if ($this->_compress)
|
||
|
$v_content = @gzread($this->_file, 512);
|
||
|
else
|
||
|
$v_content = @fread($this->_file, 512);
|
||
|
fwrite($v_dest_file, $v_content, ($v_header['size'] % 512));
|
||
|
}
|
||
|
|
||
|
@fclose($v_dest_file);
|
||
|
|
||
|
// ----- Change the file mode, mtime
|
||
|
@touch($v_header['filename'], $v_header['mtime']);
|
||
|
// To be completed
|
||
|
//chmod($v_header[filename], DecOct($v_header[mode]));
|
||
|
}
|
||
|
|
||
|
// ----- Check the file size
|
||
|
clearstatcache();
|
||
|
if (filesize($v_header['filename']) != $v_header['size']) {
|
||
|
$this->_error('Extracted file '.$v_header['filename'].' does not have the correct file size \''.filesize($v_filename).'\' ('.$v_header['size'].' expected). Archive may be corrupted.');
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
// ----- Jump to next file
|
||
|
if ($this->_compress)
|
||
|
@gzseek($this->_file, @gztell($this->_file)+(ceil(($v_header['size']/512))*512));
|
||
|
else
|
||
|
@fseek($this->_file, @ftell($this->_file)+(ceil(($v_header['size']/512))*512));
|
||
|
}
|
||
|
} else {
|
||
|
// ----- Jump to next file
|
||
|
if ($this->_compress)
|
||
|
@gzseek($this->_file, @gztell($this->_file)+(ceil(($v_header['size']/512))*512));
|
||
|
else
|
||
|
@fseek($this->_file, @ftell($this->_file)+(ceil(($v_header['size']/512))*512));
|
||
|
}
|
||
|
|
||
|
if ($this->_compress)
|
||
|
$v_end_of_file = @gzeof($this->_file);
|
||
|
else
|
||
|
$v_end_of_file = @feof($this->_file);
|
||
|
|
||
|
if ($v_listing || $v_extract_file || $v_extraction_stopped) {
|
||
|
// ----- Log extracted files
|
||
|
if (($v_file_dir = dirname($v_header['filename'])) == $v_header['filename'])
|
||
|
$v_file_dir = '';
|
||
|
if ((substr($v_header['filename'], 0, 1) == '/') && ($v_file_dir == ''))
|
||
|
$v_file_dir = '/';
|
||
|
|
||
|
$p_list_detail[$v_nb++] = $v_header;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _append()
|
||
|
function _append($p_filelist, $p_add_dir='', $p_remove_dir='')
|
||
|
{
|
||
|
if ($this->_compress) {
|
||
|
$this->_close();
|
||
|
|
||
|
if (!@rename($this->_tarname, $this->_tarname.".tmp")) {
|
||
|
$this->_error('Error while renaming \''.$this->_tarname.'\' to temporary file \''.$this->_tarname.'.tmp\'');
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (($v_temp_tar = @gzopen($this->_tarname.".tmp", "rb")) == 0) {
|
||
|
$this->_error('Unable to open file \''.$this->_tarname.'.tmp\' in binary read mode');
|
||
|
@rename($this->_tarname.".tmp", $this->_tarname);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (!$this->_openWrite()) {
|
||
|
@rename($this->_tarname.".tmp", $this->_tarname);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
$v_buffer = @gzread($v_temp_tar, 512);
|
||
|
|
||
|
// ----- Read the following blocks but not the last one
|
||
|
if (!@gzeof($v_temp_tar)) {
|
||
|
do{
|
||
|
$v_binary_data = pack("a512", "$v_buffer");
|
||
|
@gzputs($this->_file, $v_binary_data);
|
||
|
$v_buffer = @gzread($v_temp_tar, 512);
|
||
|
|
||
|
} while (!@gzeof($v_temp_tar));
|
||
|
}
|
||
|
|
||
|
if ($this->_addList($p_filelist, $p_add_dir, $p_remove_dir))
|
||
|
$this->_writeFooter();
|
||
|
|
||
|
$this->_close();
|
||
|
@gzclose($v_temp_tar);
|
||
|
|
||
|
if (!@unlink($this->_tarname.".tmp")) {
|
||
|
$this->_error('Error while deleting temporary file \''.$this->_tarname.'.tmp\'');
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
// ----- For not compressed tar, just add files before the last 512 bytes block
|
||
|
if (!$this->_openReadWrite())
|
||
|
return false;
|
||
|
|
||
|
clearstatcache();
|
||
|
$v_size = filesize($this->_tarname);
|
||
|
fseek($this->_file, $v_size-512);
|
||
|
|
||
|
if ($this->_addList($p_filelist, $p_add_dir, $p_remove_dir))
|
||
|
$this->_writeFooter();
|
||
|
|
||
|
$this->_close();
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _dirCheck()
|
||
|
function _dirCheck($p_dir)
|
||
|
{
|
||
|
if ((@is_dir($p_dir)) || ($p_dir == ''))
|
||
|
return true;
|
||
|
|
||
|
$p_parent_dir = dirname($p_dir);
|
||
|
|
||
|
if (($p_parent_dir != $p_dir) &&
|
||
|
($p_parent_dir != '') &&
|
||
|
(!$this->_dirCheck($p_parent_dir)))
|
||
|
return false;
|
||
|
|
||
|
if (!@mkdir($p_dir, 0777)) {
|
||
|
$this->_error("Unable to create directory '$p_dir'");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
// {{{ _pathReduction()
|
||
|
function _pathReduction($p_dir)
|
||
|
{
|
||
|
$v_result = '';
|
||
|
|
||
|
// ----- Look for not empty path
|
||
|
if ($p_dir != '') {
|
||
|
// ----- Explode path by directory names
|
||
|
$v_list = explode('/', $p_dir);
|
||
|
|
||
|
// ----- Study directories from last to first
|
||
|
for ($i=sizeof($v_list)-1; $i>=0; $i--) {
|
||
|
// ----- Look for current path
|
||
|
if ($v_list[$i] == ".") {
|
||
|
// ----- Ignore this directory
|
||
|
// Should be the first $i=0, but no check is done
|
||
|
}
|
||
|
else if ($v_list[$i] == "..") {
|
||
|
// ----- Ignore it and ignore the $i-1
|
||
|
$i--;
|
||
|
}
|
||
|
else if (($v_list[$i] == '') && ($i!=(sizeof($v_list)-1)) && ($i!=0)) {
|
||
|
// ----- Ignore only the double '//' in path,
|
||
|
// but not the first and last '/'
|
||
|
} else {
|
||
|
$v_result = $v_list[$i].($i!=(sizeof($v_list)-1)?'/'.$v_result:'');
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
$v_result = strtr($v_result, '\\', '/');
|
||
|
return $v_result;
|
||
|
}
|
||
|
// }}}
|
||
|
|
||
|
}
|
||
|
?>
|