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1954 lines
64 KiB
1954 lines
64 KiB
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* File::CSV
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*
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* PHP versions 4 and 5
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*
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* Copyright (c) 1997-2008,
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* Vincent Blavet <vincent@phpconcept.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category File_Formats
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* @package Archive_Tar
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* @author Vincent Blavet <vincent@phpconcept.net>
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* @copyright 1997-2010 The Authors
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
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* @version CVS: $Id: Tar.php 323476 2012-02-24 15:27:26Z mrook $
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* @link http://pear.php.net/package/Archive_Tar
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*/
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require_once 'PEAR.php';
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define('ARCHIVE_TAR_ATT_SEPARATOR', 90001);
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define('ARCHIVE_TAR_END_BLOCK', pack("a512", ''));
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/**
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* Creates a (compressed) Tar archive
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*
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* @package Archive_Tar
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* @author Vincent Blavet <vincent@phpconcept.net>
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
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* @version $Revision: 323476 $
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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 string Type of compression : 'none', 'gz' or 'bz2'
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*/
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var $_compress_type='none';
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/**
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* @var string Explode separator
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*/
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var $_separator=' ';
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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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/**
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* @var string regular expression for ignoring files or directories
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*/
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var $_ignore_regexp='';
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/**
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* @var object PEAR_Error object
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*/
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var $error_object=null;
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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 or bz2 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 string $p_compress can be null, 'gz' or 'bz2'. This
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* parameter indicates if gzip or bz2 compression
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* is required. For compatibility reason the
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* boolean value 'true' means 'gz'.
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*
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* @access public
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*/
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function Archive_Tar($p_tarname, $p_compress = null)
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{
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$this->PEAR();
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$this->_compress = false;
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$this->_compress_type = 'none';
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if (($p_compress === null) || ($p_compress == '')) {
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if (@file_exists($p_tarname)) {
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if ($fp = @fopen($p_tarname, "rb")) {
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// look for gzip magic cookie
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$data = fread($fp, 2);
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fclose($fp);
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if ($data == "\37\213") {
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$this->_compress = true;
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$this->_compress_type = 'gz';
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// No sure it's enought for a magic code ....
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} elseif ($data == "BZ") {
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$this->_compress = true;
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$this->_compress_type = 'bz2';
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}
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}
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} else {
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// probably a remote file or some file accessible
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// through a stream interface
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if (substr($p_tarname, -2) == 'gz') {
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$this->_compress = true;
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$this->_compress_type = 'gz';
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} elseif ((substr($p_tarname, -3) == 'bz2') ||
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(substr($p_tarname, -2) == 'bz')) {
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$this->_compress = true;
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$this->_compress_type = 'bz2';
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}
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}
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} else {
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if (($p_compress === true) || ($p_compress == 'gz')) {
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$this->_compress = true;
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$this->_compress_type = 'gz';
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} else if ($p_compress == 'bz2') {
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$this->_compress = true;
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$this->_compress_type = 'bz2';
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} else {
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$this->_error("Unsupported compression type '$p_compress'\n".
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"Supported types are 'gz' and 'bz2'.\n");
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return false;
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}
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}
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$this->_tarname = $p_tarname;
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if ($this->_compress) { // assert zlib or bz2 extension support
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if ($this->_compress_type == 'gz')
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$extname = 'zlib';
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else if ($this->_compress_type == 'bz2')
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$extname = 'bz2';
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if (!extension_loaded($extname)) {
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PEAR::loadExtension($extname);
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}
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if (!extension_loaded($extname)) {
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$this->_error("The extension '$extname' couldn't be found.\n".
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"Please make sure your version of PHP was built ".
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"with '$extname' support.\n");
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return false;
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}
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}
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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 $p_filelist An array of filenames and directory names, or a
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* single string with names separated by a single
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* blank space.
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*
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* @return true on success, false on error.
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* @see createModify()
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* @access public
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*/
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function create($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 $p_filelist An array of filenames and directory names, or a
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* single string with names separated by a single
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* blank space.
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*
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* @return true on success, false on error.
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* @see createModify()
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* @access public
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*/
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function add($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='', $p_preserve=false)
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{
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return $this->extractModify($p_path, '', $p_preserve);
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}
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// }}}
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// {{{ listContent()
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function listContent()
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{
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$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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$v_list_detail = 0;
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}
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$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,
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* or a single string with names separated by
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* a single blank space.
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* @param string $p_add_dir A string which contains a path to be added
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* to the memorized path of each element in
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* the list.
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* @param string $p_remove_dir A string which contains a path to be
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* removed from the memorized path of each
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* element in the list, when relevant.
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*
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* @return boolean true on success, false on error.
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* @access public
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* @see addModify()
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*/
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function createModify($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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$v_list = explode($this->_separator, $p_filelist);
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else {
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$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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* 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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* If a file/dir is already in the archive it will only be added at the
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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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* 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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*
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* @param array $p_filelist An array of filenames and directory
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* names, or a single string with names
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* separated by a single blank space.
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* @param string $p_add_dir A string which contains a path to be
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* added to the memorized path of each
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* element in the list.
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* @param string $p_remove_dir A string which contains a path to be
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* removed from the memorized path of
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* each element in the list, when
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* relevant.
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*
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* @return true on success, false on error.
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* @access public
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*/
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function addModify($p_filelist, $p_add_dir, $p_remove_dir='')
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{
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$v_result = true;
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if (!$this->_isArchive())
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$v_result = $this->createModify($p_filelist, $p_add_dir,
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$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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$v_list = explode($this->_separator, $p_filelist);
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else {
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$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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return $v_result;
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}
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// }}}
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// {{{ addString()
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/**
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* This method add a single string as a file 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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*
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* @param string $p_filename A string which contains the full
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* filename path that will be associated
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* with the string.
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* @param string $p_string The content of the file added in
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* the archive.
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*
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* @return true on success, false on error.
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* @access public
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*/
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function addString($p_filename, $p_string)
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{
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$v_result = true;
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if (!$this->_isArchive()) {
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if (!$this->_openWrite()) {
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return false;
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}
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$this->_close();
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}
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if (!$this->_openAppend())
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return false;
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// Need to check the get back to the temporary file ? ....
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$v_result = $this->_addString($p_filename, $p_string);
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$this->_writeFooter();
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$this->_close();
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return $v_result;
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}
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// }}}
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// {{{ extractModify()
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/**
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* This method extract all the content of the archive in the directory
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* indicated by $p_path. When relevant the memorized path of the
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* files/dir can be modified by removing the $p_remove_path path at the
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* beginning of the file/dir path.
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* While extracting a file, if the directory path does not exists it is
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* created.
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* While extracting a file, if the file already exists it is replaced
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* without looking for last modification date.
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* While extracting a file, if the file already exists and is write
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* protected, the extraction is aborted.
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* While extracting a file, if a directory with the same name already
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* exists, the extraction is aborted.
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* While extracting a directory, if a file with the same name already
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* exists, the extraction is aborted.
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* While extracting a file/directory if the destination directory exist
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* and is write protected, or does not exist but can not be created,
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* the extraction is aborted.
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* If after extraction an extracted file does not show the correct
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* stored file size, the extraction is aborted.
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* When the extraction is aborted, a PEAR error text is set and false
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* is returned. However the result can be a partial extraction that may
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* need to be manually cleaned.
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*
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* @param string $p_path The path of the directory where the
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* files/dir need to by extracted.
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* @param string $p_remove_path Part of the memorized path that can be
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* removed if present at the beginning of
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* the file/dir path.
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* @param boolean $p_preserve Preserve user/group ownership of files
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*
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* @return boolean true on success, false on error.
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* @access public
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* @see extractList()
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*/
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function extractModify($p_path, $p_remove_path, $p_preserve=false)
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{
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$v_result = true;
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$v_list_detail = array();
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if ($v_result = $this->_openRead()) {
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$v_result = $this->_extractList($p_path, $v_list_detail,
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"complete", 0, $p_remove_path, $p_preserve);
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$this->_close();
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}
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return $v_result;
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}
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// }}}
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// {{{ extractInString()
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/**
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* This method extract from the archive one file identified by $p_filename.
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|
* The return value is a string with the file content, or NULL on error.
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*
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|
* @param string $p_filename The path of the file to extract in a string.
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*
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* @return a string with the file content or NULL.
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* @access public
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*/
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function extractInString($p_filename)
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{
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if ($this->_openRead()) {
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$v_result = $this->_extractInString($p_filename);
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$this->_close();
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} else {
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$v_result = null;
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}
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return $v_result;
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}
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// }}}
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// {{{ extractList()
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/**
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* 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.
|
|
* @param boolean $p_preserve Preserve user/group ownership of files
|
|
*
|
|
* @return true on success, false on error.
|
|
* @access public
|
|
* @see extractModify()
|
|
*/
|
|
function extractList($p_filelist, $p_path='', $p_remove_path='', $p_preserve=false)
|
|
{
|
|
$v_result = true;
|
|
$v_list_detail = array();
|
|
|
|
if (is_array($p_filelist))
|
|
$v_list = $p_filelist;
|
|
elseif (is_string($p_filelist))
|
|
$v_list = explode($this->_separator, $p_filelist);
|
|
else {
|
|
$this->_error('Invalid string list');
|
|
return false;
|
|
}
|
|
|
|
if ($v_result = $this->_openRead()) {
|
|
$v_result = $this->_extractList($p_path, $v_list_detail, "partial",
|
|
$v_list, $p_remove_path, $p_preserve);
|
|
$this->_close();
|
|
}
|
|
|
|
return $v_result;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ setAttribute()
|
|
/**
|
|
* This method set specific attributes of the archive. It uses a variable
|
|
* list of parameters, in the format attribute code + attribute values :
|
|
* $arch->setAttribute(ARCHIVE_TAR_ATT_SEPARATOR, ',');
|
|
*
|
|
* @param mixed $argv variable list of attributes and values
|
|
*
|
|
* @return true on success, false on error.
|
|
* @access public
|
|
*/
|
|
function setAttribute()
|
|
{
|
|
$v_result = true;
|
|
|
|
// ----- Get the number of variable list of arguments
|
|
if (($v_size = func_num_args()) == 0) {
|
|
return true;
|
|
}
|
|
|
|
// ----- Get the arguments
|
|
$v_att_list = func_get_args();
|
|
|
|
// ----- Read the attributes
|
|
$i=0;
|
|
while ($i<$v_size) {
|
|
|
|
// ----- Look for next option
|
|
switch ($v_att_list[$i]) {
|
|
// ----- Look for options that request a string value
|
|
case ARCHIVE_TAR_ATT_SEPARATOR :
|
|
// ----- Check the number of parameters
|
|
if (($i+1) >= $v_size) {
|
|
$this->_error('Invalid number of parameters for '
|
|
.'attribute ARCHIVE_TAR_ATT_SEPARATOR');
|
|
return false;
|
|
}
|
|
|
|
// ----- Get the value
|
|
$this->_separator = $v_att_list[$i+1];
|
|
$i++;
|
|
break;
|
|
|
|
default :
|
|
$this->_error('Unknow attribute code '.$v_att_list[$i].'');
|
|
return false;
|
|
}
|
|
|
|
// ----- Next attribute
|
|
$i++;
|
|
}
|
|
|
|
return $v_result;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ setIgnoreRegexp()
|
|
/**
|
|
* This method sets the regular expression for ignoring files and directories
|
|
* at import, for example:
|
|
* $arch->setIgnoreRegexp("#CVS|\.svn#");
|
|
*
|
|
* @param string $regexp regular expression defining which files or directories to ignore
|
|
*
|
|
* @access public
|
|
*/
|
|
function setIgnoreRegexp($regexp)
|
|
{
|
|
$this->_ignore_regexp = $regexp;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ setIgnoreList()
|
|
/**
|
|
* This method sets the regular expression for ignoring all files and directories
|
|
* matching the filenames in the array list at import, for example:
|
|
* $arch->setIgnoreList(array('CVS', '.svn', 'bin/tool'));
|
|
*
|
|
* @param array $list a list of file or directory names to ignore
|
|
*
|
|
* @access public
|
|
*/
|
|
function setIgnoreList($list)
|
|
{
|
|
$regexp = str_replace(array('#', '.', '^', '$'), array('\#', '\.', '\^', '\$'), $list);
|
|
$regexp = '#/'.join('$|/', $list).'#';
|
|
$this->setIgnoreRegexp($regexp);
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _error()
|
|
function _error($p_message)
|
|
{
|
|
$this->error_object = $this->raiseError($p_message);
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _warning()
|
|
function _warning($p_message)
|
|
{
|
|
$this->error_object = $this->raiseError($p_message);
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _isArchive()
|
|
function _isArchive($p_filename=null)
|
|
{
|
|
if ($p_filename == null) {
|
|
$p_filename = $this->_tarname;
|
|
}
|
|
clearstatcache();
|
|
return @is_file($p_filename) && !@is_link($p_filename);
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _openWrite()
|
|
function _openWrite()
|
|
{
|
|
if ($this->_compress_type == 'gz' && function_exists('gzopen'))
|
|
$this->_file = @gzopen($this->_tarname, "wb9");
|
|
else if ($this->_compress_type == 'bz2' && function_exists('bzopen'))
|
|
$this->_file = @bzopen($this->_tarname, "w");
|
|
else if ($this->_compress_type == 'none')
|
|
$this->_file = @fopen($this->_tarname, "wb");
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
|
|
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_type == 'gz')
|
|
$this->_file = @gzopen($v_filename, "rb");
|
|
else if ($this->_compress_type == 'bz2')
|
|
$this->_file = @bzopen($v_filename, "r");
|
|
else if ($this->_compress_type == 'none')
|
|
$this->_file = @fopen($v_filename, "rb");
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
|
|
if ($this->_file == 0) {
|
|
$this->_error('Unable to open in read mode \''.$v_filename.'\'');
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _openReadWrite()
|
|
function _openReadWrite()
|
|
{
|
|
if ($this->_compress_type == 'gz')
|
|
$this->_file = @gzopen($this->_tarname, "r+b");
|
|
else if ($this->_compress_type == 'bz2') {
|
|
$this->_error('Unable to open bz2 in read/write mode \''
|
|
.$this->_tarname.'\' (limitation of bz2 extension)');
|
|
return false;
|
|
} else if ($this->_compress_type == 'none')
|
|
$this->_file = @fopen($this->_tarname, "r+b");
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
|
|
if ($this->_file == 0) {
|
|
$this->_error('Unable to open in read/write mode \''
|
|
.$this->_tarname.'\'');
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _close()
|
|
function _close()
|
|
{
|
|
//if (isset($this->_file)) {
|
|
if (is_resource($this->_file)) {
|
|
if ($this->_compress_type == 'gz')
|
|
@gzclose($this->_file);
|
|
else if ($this->_compress_type == 'bz2')
|
|
@bzclose($this->_file);
|
|
else if ($this->_compress_type == 'none')
|
|
@fclose($this->_file);
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
|
|
$this->_file = 0;
|
|
}
|
|
|
|
// ----- Look if a local copy need to be erase
|
|
// Note that it might be interesting to keep the url for a time : ToDo
|
|
if ($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);
|
|
}
|
|
$this->_tarname = '';
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _writeBlock()
|
|
function _writeBlock($p_binary_data, $p_len=null)
|
|
{
|
|
if (is_resource($this->_file)) {
|
|
if ($p_len === null) {
|
|
if ($this->_compress_type == 'gz')
|
|
@gzputs($this->_file, $p_binary_data);
|
|
else if ($this->_compress_type == 'bz2')
|
|
@bzwrite($this->_file, $p_binary_data);
|
|
else if ($this->_compress_type == 'none')
|
|
@fputs($this->_file, $p_binary_data);
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
} else {
|
|
if ($this->_compress_type == 'gz')
|
|
@gzputs($this->_file, $p_binary_data, $p_len);
|
|
else if ($this->_compress_type == 'bz2')
|
|
@bzwrite($this->_file, $p_binary_data, $p_len);
|
|
else if ($this->_compress_type == 'none')
|
|
@fputs($this->_file, $p_binary_data, $p_len);
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _readBlock()
|
|
function _readBlock()
|
|
{
|
|
$v_block = null;
|
|
if (is_resource($this->_file)) {
|
|
if ($this->_compress_type == 'gz')
|
|
$v_block = @gzread($this->_file, 512);
|
|
else if ($this->_compress_type == 'bz2')
|
|
$v_block = @bzread($this->_file, 512);
|
|
else if ($this->_compress_type == 'none')
|
|
$v_block = @fread($this->_file, 512);
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
}
|
|
return $v_block;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _jumpBlock()
|
|
function _jumpBlock($p_len=null)
|
|
{
|
|
if (is_resource($this->_file)) {
|
|
if ($p_len === null)
|
|
$p_len = 1;
|
|
|
|
if ($this->_compress_type == 'gz') {
|
|
@gzseek($this->_file, gztell($this->_file)+($p_len*512));
|
|
}
|
|
else if ($this->_compress_type == 'bz2') {
|
|
// ----- Replace missing bztell() and bzseek()
|
|
for ($i=0; $i<$p_len; $i++)
|
|
$this->_readBlock();
|
|
} else if ($this->_compress_type == 'none')
|
|
@fseek($this->_file, $p_len*512, SEEK_CUR);
|
|
else
|
|
$this->_error('Unknown or missing compression type ('
|
|
.$this->_compress_type.')');
|
|
|
|
}
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _writeFooter()
|
|
function _writeFooter()
|
|
{
|
|
if (is_resource($this->_file)) {
|
|
// ----- Write the last 0 filled block for end of archive
|
|
$v_binary_data = pack('a1024', '');
|
|
$this->_writeBlock($v_binary_data);
|
|
}
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _addList()
|
|
function _addList($p_list, $p_add_dir, $p_remove_dir)
|
|
{
|
|
$v_result=true;
|
|
$v_header = array();
|
|
|
|
// ----- Remove potential windows directory separator
|
|
$p_add_dir = $this->_translateWinPath($p_add_dir);
|
|
$p_remove_dir = $this->_translateWinPath($p_remove_dir, false);
|
|
|
|
if (!$this->_file) {
|
|
$this->_error('Invalid file descriptor');
|
|
return false;
|
|
}
|
|
|
|
if (sizeof($p_list) == 0)
|
|
return true;
|
|
|
|
foreach ($p_list as $v_filename) {
|
|
if (!$v_result) {
|
|
break;
|
|
}
|
|
|
|
// ----- Skip the current tar name
|
|
if ($v_filename == $this->_tarname)
|
|
continue;
|
|
|
|
if ($v_filename == '')
|
|
continue;
|
|
|
|
// ----- ignore files and directories matching the ignore regular expression
|
|
if ($this->_ignore_regexp && preg_match($this->_ignore_regexp, '/'.$v_filename)) {
|
|
$this->_warning("File '$v_filename' ignored");
|
|
continue;
|
|
}
|
|
|
|
if (!file_exists($v_filename) && !is_link($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) && !@is_link($v_filename)) {
|
|
if (!($p_hdir = opendir($v_filename))) {
|
|
$this->_warning("Directory '$v_filename' can not be read");
|
|
continue;
|
|
}
|
|
while (false !== ($p_hitem = readdir($p_hdir))) {
|
|
if (($p_hitem != '.') && ($p_hitem != '..')) {
|
|
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, $p_remove_dir,$v_stored_filename=null)
|
|
{
|
|
if (!$this->_file) {
|
|
$this->_error('Invalid file descriptor');
|
|
return false;
|
|
}
|
|
|
|
if ($p_filename == '') {
|
|
$this->_error('Invalid file name');
|
|
return false;
|
|
}
|
|
if(is_null($v_stored_filename)){
|
|
|
|
// ----- Calculate the stored filename
|
|
$p_filename = $this->_translateWinPath($p_filename, false);
|
|
$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));
|
|
}
|
|
$v_stored_filename = $this->_translateWinPath($v_stored_filename);
|
|
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;
|
|
}
|
|
|
|
$v_stored_filename = $this->_pathReduction($v_stored_filename);
|
|
}
|
|
|
|
if ($this->_isArchive($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");
|
|
$this->_writeBlock($v_binary_data);
|
|
}
|
|
|
|
fclose($v_file);
|
|
|
|
} else {
|
|
// ----- Only header for dir
|
|
if (!$this->_writeHeader($p_filename, $v_stored_filename))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _addString()
|
|
function _addString($p_filename, $p_string)
|
|
{
|
|
if (!$this->_file) {
|
|
$this->_error('Invalid file descriptor');
|
|
return false;
|
|
}
|
|
|
|
if ($p_filename == '') {
|
|
$this->_error('Invalid file name');
|
|
return false;
|
|
}
|
|
|
|
// ----- Calculate the stored filename
|
|
$p_filename = $this->_translateWinPath($p_filename, false);;
|
|
|
|
if (!$this->_writeHeaderBlock($p_filename, strlen($p_string),
|
|
time(), 384, "", 0, 0))
|
|
return false;
|
|
|
|
$i=0;
|
|
while (($v_buffer = substr($p_string, (($i++)*512), 512)) != '') {
|
|
$v_binary_data = pack("a512", $v_buffer);
|
|
$this->_writeBlock($v_binary_data);
|
|
}
|
|
|
|
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);
|
|
|
|
if (strlen($v_reduce_filename) > 99) {
|
|
if (!$this->_writeLongHeader($v_reduce_filename))
|
|
return false;
|
|
}
|
|
|
|
$v_info = lstat($p_filename);
|
|
$v_uid = sprintf("%07s", DecOct($v_info[4]));
|
|
$v_gid = sprintf("%07s", DecOct($v_info[5]));
|
|
$v_perms = sprintf("%07s", DecOct($v_info['mode'] & 000777));
|
|
|
|
$v_mtime = sprintf("%011s", DecOct($v_info['mtime']));
|
|
|
|
$v_linkname = '';
|
|
|
|
if (@is_link($p_filename)) {
|
|
$v_typeflag = '2';
|
|
$v_linkname = readlink($p_filename);
|
|
$v_size = sprintf("%011s", DecOct(0));
|
|
} elseif (@is_dir($p_filename)) {
|
|
$v_typeflag = "5";
|
|
$v_size = sprintf("%011s", DecOct(0));
|
|
} else {
|
|
$v_typeflag = '0';
|
|
clearstatcache();
|
|
$v_size = sprintf("%011s", DecOct($v_info['size']));
|
|
}
|
|
|
|
$v_magic = 'ustar ';
|
|
|
|
$v_version = ' ';
|
|
|
|
if (function_exists('posix_getpwuid'))
|
|
{
|
|
$userinfo = posix_getpwuid($v_info[4]);
|
|
$groupinfo = posix_getgrgid($v_info[5]);
|
|
|
|
$v_uname = $userinfo['name'];
|
|
$v_gname = $groupinfo['name'];
|
|
}
|
|
else
|
|
{
|
|
$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
|
|
$this->_writeBlock($v_binary_data_first, 148);
|
|
|
|
// ----- Write the calculated checksum
|
|
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
|
|
$v_binary_data = pack("a8", $v_checksum);
|
|
$this->_writeBlock($v_binary_data, 8);
|
|
|
|
// ----- Write the last 356 bytes of the header in the archive
|
|
$this->_writeBlock($v_binary_data_last, 356);
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _writeHeaderBlock()
|
|
function _writeHeaderBlock($p_filename, $p_size, $p_mtime=0, $p_perms=0,
|
|
$p_type='', $p_uid=0, $p_gid=0)
|
|
{
|
|
$p_filename = $this->_pathReduction($p_filename);
|
|
|
|
if (strlen($p_filename) > 99) {
|
|
if (!$this->_writeLongHeader($p_filename))
|
|
return false;
|
|
}
|
|
|
|
if ($p_type == "5") {
|
|
$v_size = sprintf("%011s", DecOct(0));
|
|
} else {
|
|
$v_size = sprintf("%011s", DecOct($p_size));
|
|
}
|
|
|
|
$v_uid = sprintf("%07s", DecOct($p_uid));
|
|
$v_gid = sprintf("%07s", DecOct($p_gid));
|
|
$v_perms = sprintf("%07s", DecOct($p_perms & 000777));
|
|
|
|
$v_mtime = sprintf("%11s", DecOct($p_mtime));
|
|
|
|
$v_linkname = '';
|
|
|
|
$v_magic = 'ustar ';
|
|
|
|
$v_version = ' ';
|
|
|
|
if (function_exists('posix_getpwuid'))
|
|
{
|
|
$userinfo = posix_getpwuid($p_uid);
|
|
$groupinfo = posix_getgrgid($p_gid);
|
|
|
|
$v_uname = $userinfo['name'];
|
|
$v_gname = $groupinfo['name'];
|
|
}
|
|
else
|
|
{
|
|
$v_uname = '';
|
|
$v_gname = '';
|
|
}
|
|
|
|
$v_devmajor = '';
|
|
|
|
$v_devminor = '';
|
|
|
|
$v_prefix = '';
|
|
|
|
$v_binary_data_first = pack("a100a8a8a8a12A12",
|
|
$p_filename, $v_perms, $v_uid, $v_gid,
|
|
$v_size, $v_mtime);
|
|
$v_binary_data_last = pack("a1a100a6a2a32a32a8a8a155a12",
|
|
$p_type, $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
|
|
$this->_writeBlock($v_binary_data_first, 148);
|
|
|
|
// ----- Write the calculated checksum
|
|
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
|
|
$v_binary_data = pack("a8", $v_checksum);
|
|
$this->_writeBlock($v_binary_data, 8);
|
|
|
|
// ----- Write the last 356 bytes of the header in the archive
|
|
$this->_writeBlock($v_binary_data_last, 356);
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _writeLongHeader()
|
|
function _writeLongHeader($p_filename)
|
|
{
|
|
$v_size = sprintf("%11s ", DecOct(strlen($p_filename)));
|
|
|
|
$v_typeflag = 'L';
|
|
|
|
$v_linkname = '';
|
|
|
|
$v_magic = '';
|
|
|
|
$v_version = '';
|
|
|
|
$v_uname = '';
|
|
|
|
$v_gname = '';
|
|
|
|
$v_devmajor = '';
|
|
|
|
$v_devminor = '';
|
|
|
|
$v_prefix = '';
|
|
|
|
$v_binary_data_first = pack("a100a8a8a8a12a12",
|
|
'././@LongLink', 0, 0, 0, $v_size, 0);
|
|
$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
|
|
$this->_writeBlock($v_binary_data_first, 148);
|
|
|
|
// ----- Write the calculated checksum
|
|
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
|
|
$v_binary_data = pack("a8", $v_checksum);
|
|
$this->_writeBlock($v_binary_data, 8);
|
|
|
|
// ----- Write the last 356 bytes of the header in the archive
|
|
$this->_writeBlock($v_binary_data_last, 356);
|
|
|
|
// ----- Write the filename as content of the block
|
|
$i=0;
|
|
while (($v_buffer = substr($p_filename, (($i++)*512), 512)) != '') {
|
|
$v_binary_data = pack("a512", "$v_buffer");
|
|
$this->_writeBlock($v_binary_data);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (!is_array($v_header)) {
|
|
$v_header = array();
|
|
}
|
|
// ----- 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/a131prefix",
|
|
$v_binary_data);
|
|
|
|
if (strlen($v_data["prefix"]) > 0) {
|
|
$v_data["filename"] = "$v_data[prefix]/$v_data[filename]";
|
|
}
|
|
|
|
// ----- 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;
|
|
|
|
$this->_error('Invalid checksum for file "'.$v_data['filename']
|
|
.'" : '.$v_checksum.' calculated, '
|
|
.$v_header['checksum'].' expected');
|
|
return false;
|
|
}
|
|
|
|
// ----- Extract the properties
|
|
$v_header['filename'] = $v_data['filename'];
|
|
if ($this->_maliciousFilename($v_header['filename'])) {
|
|
$this->_error('Malicious .tar detected, file "' . $v_header['filename'] .
|
|
'" will not install in desired directory tree');
|
|
return false;
|
|
}
|
|
$v_header['mode'] = OctDec(trim($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;
|
|
}
|
|
$v_header['link'] = trim($v_data['link']);
|
|
/* ----- All these fields are removed form the header because
|
|
they do not carry interesting info
|
|
$v_header[magic] = trim($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;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _maliciousFilename()
|
|
/**
|
|
* Detect and report a malicious file name
|
|
*
|
|
* @param string $file
|
|
*
|
|
* @return bool
|
|
* @access private
|
|
*/
|
|
function _maliciousFilename($file)
|
|
{
|
|
if (strpos($file, '/../') !== false) {
|
|
return true;
|
|
}
|
|
if (strpos($file, '../') === 0) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _readLongHeader()
|
|
function _readLongHeader(&$v_header)
|
|
{
|
|
$v_filename = '';
|
|
$n = floor($v_header['size']/512);
|
|
for ($i=0; $i<$n; $i++) {
|
|
$v_content = $this->_readBlock();
|
|
$v_filename .= $v_content;
|
|
}
|
|
if (($v_header['size'] % 512) != 0) {
|
|
$v_content = $this->_readBlock();
|
|
$v_filename .= trim($v_content);
|
|
}
|
|
|
|
// ----- Read the next header
|
|
$v_binary_data = $this->_readBlock();
|
|
|
|
if (!$this->_readHeader($v_binary_data, $v_header))
|
|
return false;
|
|
|
|
$v_filename = trim($v_filename);
|
|
$v_header['filename'] = $v_filename;
|
|
if ($this->_maliciousFilename($v_filename)) {
|
|
$this->_error('Malicious .tar detected, file "' . $v_filename .
|
|
'" will not install in desired directory tree');
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _extractInString()
|
|
/**
|
|
* This method extract from the archive one file identified by $p_filename.
|
|
* The return value is a string with the file content, or null on error.
|
|
*
|
|
* @param string $p_filename The path of the file to extract in a string.
|
|
*
|
|
* @return a string with the file content or null.
|
|
* @access private
|
|
*/
|
|
function _extractInString($p_filename)
|
|
{
|
|
$v_result_str = "";
|
|
|
|
While (strlen($v_binary_data = $this->_readBlock()) != 0)
|
|
{
|
|
if (!$this->_readHeader($v_binary_data, $v_header))
|
|
return null;
|
|
|
|
if ($v_header['filename'] == '')
|
|
continue;
|
|
|
|
// ----- Look for long filename
|
|
if ($v_header['typeflag'] == 'L') {
|
|
if (!$this->_readLongHeader($v_header))
|
|
return null;
|
|
}
|
|
|
|
if ($v_header['filename'] == $p_filename) {
|
|
if ($v_header['typeflag'] == "5") {
|
|
$this->_error('Unable to extract in string a directory '
|
|
.'entry {'.$v_header['filename'].'}');
|
|
return null;
|
|
} else {
|
|
$n = floor($v_header['size']/512);
|
|
for ($i=0; $i<$n; $i++) {
|
|
$v_result_str .= $this->_readBlock();
|
|
}
|
|
if (($v_header['size'] % 512) != 0) {
|
|
$v_content = $this->_readBlock();
|
|
$v_result_str .= substr($v_content, 0,
|
|
($v_header['size'] % 512));
|
|
}
|
|
return $v_result_str;
|
|
}
|
|
} else {
|
|
$this->_jumpBlock(ceil(($v_header['size']/512)));
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _extractList()
|
|
function _extractList($p_path, &$p_list_detail, $p_mode,
|
|
$p_file_list, $p_remove_path, $p_preserve=false)
|
|
{
|
|
$v_result=true;
|
|
$v_nb = 0;
|
|
$v_extract_all = true;
|
|
$v_listing = false;
|
|
|
|
$p_path = $this->_translateWinPath($p_path, false);
|
|
if ($p_path == '' || (substr($p_path, 0, 1) != '/'
|
|
&& substr($p_path, 0, 3) != "../" && !strpos($p_path, ':'))) {
|
|
$p_path = "./".$p_path;
|
|
}
|
|
$p_remove_path = $this->_translateWinPath($p_remove_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 (strlen($v_binary_data = $this->_readBlock()) != 0)
|
|
{
|
|
$v_extract_file = FALSE;
|
|
$v_extraction_stopped = 0;
|
|
|
|
if (!$this->_readHeader($v_binary_data, $v_header))
|
|
return false;
|
|
|
|
if ($v_header['filename'] == '') {
|
|
continue;
|
|
}
|
|
|
|
// ----- Look for long filename
|
|
if ($v_header['typeflag'] == 'L') {
|
|
if (!$this->_readLongHeader($v_header))
|
|
return false;
|
|
}
|
|
|
|
if ((!$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 ( ($this->_isArchive($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;
|
|
}
|
|
}
|
|
} elseif ($v_header['typeflag'] == "2") {
|
|
if (@file_exists($v_header['filename'])) {
|
|
@unlink($v_header['filename']);
|
|
}
|
|
if (!@symlink($v_header['link'], $v_header['filename'])) {
|
|
$this->_error('Unable to extract symbolic link {'
|
|
.$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++) {
|
|
$v_content = $this->_readBlock();
|
|
fwrite($v_dest_file, $v_content, 512);
|
|
}
|
|
if (($v_header['size'] % 512) != 0) {
|
|
$v_content = $this->_readBlock();
|
|
fwrite($v_dest_file, $v_content, ($v_header['size'] % 512));
|
|
}
|
|
|
|
@fclose($v_dest_file);
|
|
|
|
if ($p_preserve) {
|
|
@chown($v_header['filename'], $v_header['uid']);
|
|
@chgrp($v_header['filename'], $v_header['gid']);
|
|
}
|
|
|
|
// ----- Change the file mode, mtime
|
|
@touch($v_header['filename'], $v_header['mtime']);
|
|
if ($v_header['mode'] & 0111) {
|
|
// make file executable, obey umask
|
|
$mode = fileperms($v_header['filename']) | (~umask() & 0111);
|
|
@chmod($v_header['filename'], $mode);
|
|
}
|
|
}
|
|
|
|
// ----- Check the file size
|
|
clearstatcache();
|
|
if (!is_file($v_header['filename'])) {
|
|
$this->_error('Extracted file '.$v_header['filename']
|
|
.'does not exist. Archive may be corrupted.');
|
|
return false;
|
|
}
|
|
|
|
$filesize = filesize($v_header['filename']);
|
|
if ($filesize != $v_header['size']) {
|
|
$this->_error('Extracted file '.$v_header['filename']
|
|
.' does not have the correct file size \''
|
|
.$filesize
|
|
.'\' ('.$v_header['size']
|
|
.' expected). Archive may be corrupted.');
|
|
return false;
|
|
}
|
|
}
|
|
} else {
|
|
$this->_jumpBlock(ceil(($v_header['size']/512)));
|
|
}
|
|
} else {
|
|
$this->_jumpBlock(ceil(($v_header['size']/512)));
|
|
}
|
|
|
|
/* TBC : Seems to be unused ...
|
|
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++] = $v_header;
|
|
if (is_array($p_file_list) && (count($p_list_detail) == count($p_file_list))) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _openAppend()
|
|
function _openAppend()
|
|
{
|
|
if (filesize($this->_tarname) == 0)
|
|
return $this->_openWrite();
|
|
|
|
if ($this->_compress) {
|
|
$this->_close();
|
|
|
|
if (!@rename($this->_tarname, $this->_tarname.".tmp")) {
|
|
$this->_error('Error while renaming \''.$this->_tarname
|
|
.'\' to temporary file \''.$this->_tarname
|
|
.'.tmp\'');
|
|
return false;
|
|
}
|
|
|
|
if ($this->_compress_type == 'gz')
|
|
$v_temp_tar = @gzopen($this->_tarname.".tmp", "rb");
|
|
elseif ($this->_compress_type == 'bz2')
|
|
$v_temp_tar = @bzopen($this->_tarname.".tmp", "r");
|
|
|
|
if ($v_temp_tar == 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", $this->_tarname);
|
|
return false;
|
|
}
|
|
|
|
if ($this->_compress_type == 'gz') {
|
|
while (!@gzeof($v_temp_tar)) {
|
|
$v_buffer = @gzread($v_temp_tar, 512);
|
|
if ($v_buffer == ARCHIVE_TAR_END_BLOCK || strlen($v_buffer) == 0) {
|
|
// do not copy end blocks, we will re-make them
|
|
// after appending
|
|
continue;
|
|
}
|
|
$v_binary_data = pack("a512", $v_buffer);
|
|
$this->_writeBlock($v_binary_data);
|
|
}
|
|
|
|
@gzclose($v_temp_tar);
|
|
}
|
|
elseif ($this->_compress_type == 'bz2') {
|
|
while (strlen($v_buffer = @bzread($v_temp_tar, 512)) > 0) {
|
|
if ($v_buffer == ARCHIVE_TAR_END_BLOCK) {
|
|
continue;
|
|
}
|
|
$v_binary_data = pack("a512", $v_buffer);
|
|
$this->_writeBlock($v_binary_data);
|
|
}
|
|
|
|
@bzclose($v_temp_tar);
|
|
}
|
|
|
|
if (!@unlink($this->_tarname.".tmp")) {
|
|
$this->_error('Error while deleting temporary file \''
|
|
.$this->_tarname.'.tmp\'');
|
|
}
|
|
|
|
} else {
|
|
// ----- For not compressed tar, just add files before the last
|
|
// one or two 512 bytes block
|
|
if (!$this->_openReadWrite())
|
|
return false;
|
|
|
|
clearstatcache();
|
|
$v_size = filesize($this->_tarname);
|
|
|
|
// We might have zero, one or two end blocks.
|
|
// The standard is two, but we should try to handle
|
|
// other cases.
|
|
fseek($this->_file, $v_size - 1024);
|
|
if (fread($this->_file, 512) == ARCHIVE_TAR_END_BLOCK) {
|
|
fseek($this->_file, $v_size - 1024);
|
|
}
|
|
elseif (fread($this->_file, 512) == ARCHIVE_TAR_END_BLOCK) {
|
|
fseek($this->_file, $v_size - 512);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _append()
|
|
function _append($p_filelist, $p_add_dir='', $p_remove_dir='')
|
|
{
|
|
if (!$this->_openAppend())
|
|
return false;
|
|
|
|
if ($this->_addList($p_filelist, $p_add_dir, $p_remove_dir))
|
|
$this->_writeFooter();
|
|
|
|
$this->_close();
|
|
|
|
return true;
|
|
}
|
|
// }}}
|
|
|
|
// {{{ _dirCheck()
|
|
|
|
/**
|
|
* Check if a directory exists and create it (including parent
|
|
* dirs) if not.
|
|
*
|
|
* @param string $p_dir directory to check
|
|
*
|
|
* @return bool true if the directory exists or was created
|
|
*/
|
|
function _dirCheck($p_dir)
|
|
{
|
|
clearstatcache();
|
|
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()
|
|
|
|
/**
|
|
* Compress path by changing for example "/dir/foo/../bar" to "/dir/bar",
|
|
* rand emove double slashes.
|
|
*
|
|
* @param string $p_dir path to reduce
|
|
*
|
|
* @return string reduced path
|
|
*
|
|
* @access private
|
|
*
|
|
*/
|
|
function _pathReduction($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:'');
|
|
}
|
|
}
|
|
}
|
|
|
|
if (defined('OS_WINDOWS') && OS_WINDOWS) {
|
|
$v_result = strtr($v_result, '\\', '/');
|
|
}
|
|
|
|
return $v_result;
|
|
}
|
|
|
|
// }}}
|
|
|
|
// {{{ _translateWinPath()
|
|
function _translateWinPath($p_path, $p_remove_disk_letter=true)
|
|
{
|
|
if (defined('OS_WINDOWS') && OS_WINDOWS) {
|
|
// ----- Look for potential disk letter
|
|
if ( ($p_remove_disk_letter)
|
|
&& (($v_position = strpos($p_path, ':')) != false)) {
|
|
$p_path = substr($p_path, $v_position+1);
|
|
}
|
|
// ----- Change potential windows directory separator
|
|
if ((strpos($p_path, '\\') > 0) || (substr($p_path, 0,1) == '\\')) {
|
|
$p_path = strtr($p_path, '\\', '/');
|
|
}
|
|
}
|
|
return $p_path;
|
|
}
|
|
// }}}
|
|
|
|
}
|
|
?>
|
|
|