File indexing completed on 2024-12-22 05:36:41

 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Filter
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Filter_Compress_CompressAbstract
  */
 // require_once 'Zend/Filter/Compress/CompressAbstract.php';
 
 /**
  * Compression adapter for zip
  *
  * @category   Zend
  * @package    Zend_Filter
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Filter_Compress_Zip extends Zend_Filter_Compress_CompressAbstract
 {
     /**
      * Compression Options
      * array(
      *     'archive'  => Archive to use
      *     'password' => Password to use
      *     'target'   => Target to write the files to
      * )
      *
      * @var array
      */
     protected $_options = array(
         'archive' => null,
         'target'  => null,
     );
 
     /**
      * Class constructor
      *
      * @param string|array $options (Optional) Options to set
      */
     public function __construct($options = null)
     {
         if (!extension_loaded('zip')) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception('This filter needs the zip extension');
         }
         parent::__construct($options);
     }
 
     /**
      * Returns the set archive
      *
      * @return string
      */
     public function getArchive()
     {
         return $this->_options['archive'];
     }
 
     /**
      * Sets the archive to use for de-/compression
      *
      * @param string $archive Archive to use
      * @return Zend_Filter_Compress_Rar
      */
     public function setArchive($archive)
     {
         $archive = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $archive);
         $this->_options['archive'] = (string) $archive;
 
         return $this;
     }
 
     /**
      * Returns the set targetpath
      *
      * @return string
      */
     public function getTarget()
     {
         return $this->_options['target'];
     }
 
     /**
      * Sets the target to use
      *
      * @param string $target
      * @return Zend_Filter_Compress_Rar
      */
     public function setTarget($target)
     {
         if (!file_exists(dirname($target))) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception("The directory '$target' does not exist");
         }
 
         $target = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $target);
         $this->_options['target'] = (string) $target;
         return $this;
     }
 
     /**
      * Compresses the given content
      *
      * @param  string $content
      * @return string Compressed archive
      */
     public function compress($content)
     {
         $zip = new ZipArchive();
         $res = $zip->open($this->getArchive(), ZipArchive::CREATE | ZipArchive::OVERWRITE);
 
         if ($res !== true) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception($this->_errorString($res));
         }
 
         if (file_exists($content)) {
             $content  = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, realpath($content));
             $basename = substr($content, strrpos($content, DIRECTORY_SEPARATOR) + 1);
             if (is_dir($content)) {
                 $index    = strrpos($content, DIRECTORY_SEPARATOR) + 1;
                 $content .= DIRECTORY_SEPARATOR;
                 $stack    = array($content);
                 while (!empty($stack)) {
                     $current = array_pop($stack);
                     $files   = array();
 
                     $dir = dir($current);
                     while (false !== ($node = $dir->read())) {
                         if (($node == '.') || ($node == '..')) {
                             continue;
                         }
 
                         if (is_dir($current . $node)) {
                             array_push($stack, $current . $node . DIRECTORY_SEPARATOR);
                         }
 
                         if (is_file($current . $node)) {
                             $files[] = $node;
                         }
                     }
 
                     $local = substr($current, $index);
                     $zip->addEmptyDir(substr($local, 0, -1));
 
                     foreach ($files as $file) {
                         $zip->addFile($current . $file, $local . $file);
                         if ($res !== true) {
                             // require_once 'Zend/Filter/Exception.php';
                             throw new Zend_Filter_Exception($this->_errorString($res));
                         }
                     }
                 }
             } else {
                 $res = $zip->addFile($content, $basename);
                 if ($res !== true) {
                     // require_once 'Zend/Filter/Exception.php';
                     throw new Zend_Filter_Exception($this->_errorString($res));
                 }
             }
         } else {
             $file = $this->getTarget();
             if (!is_dir($file)) {
                 $file = basename($file);
             } else {
                 $file = "zip.tmp";
             }
 
             $res = $zip->addFromString($file, $content);
             if ($res !== true) {
                 // require_once 'Zend/Filter/Exception.php';
                 throw new Zend_Filter_Exception($this->_errorString($res));
             }
         }
 
         $zip->close();
         return $this->_options['archive'];
     }
 
     /**
      * Decompresses the given content
      *
      * @param  string $content
      * @return string
      */
     public function decompress($content)
     {
         $archive = $this->getArchive();
         if (file_exists($content)) {
             $archive = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, realpath($content));
         } elseif (empty($archive) || !file_exists($archive)) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception('ZIP Archive not found');
         }
 
         $zip = new ZipArchive();
         $res = $zip->open($archive);
 
         $target = $this->getTarget();
 
         if (!empty($target) && !is_dir($target)) {
             $target = dirname($target);
         }
 
         if (!empty($target)) {
             $target = rtrim($target, '/\\') . DIRECTORY_SEPARATOR;
         }
 
         if (empty($target) || !is_dir($target)) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception('No target for ZIP decompression set');
         }
 
         if ($res !== true) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception($this->_errorString($res));
         }
 
         if (version_compare(PHP_VERSION, '5.2.8', '<')) {
             for ($i = 0; $i < $zip->numFiles; $i++) {
                 $statIndex = $zip->statIndex($i);
                 $currName = $statIndex['name'];
                 if (($currName{0} == '/') ||
                     (substr($currName, 0, 2) == '..') ||
                     (substr($currName, 0, 4) == './..')
                     )
                 {
                     // require_once 'Zend/Filter/Exception.php';
                     throw new Zend_Filter_Exception('Upward directory traversal was detected inside ' . $archive
                         . ' please use PHP 5.2.8 or greater to take advantage of path resolution features of '
                         . 'the zip extension in this decompress() method.'
                         );
                 }
             }
         }
 
         $res = @$zip->extractTo($target);
         if ($res !== true) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception($this->_errorString($res));
         }
 
         $zip->close();
         return $target;
     }
 
     /**
      * Returns the proper string based on the given error constant
      *
      * @param string $error
      */
     protected function _errorString($error)
     {
         switch($error) {
             case ZipArchive::ER_MULTIDISK :
                 return 'Multidisk ZIP Archives not supported';
 
             case ZipArchive::ER_RENAME :
                 return 'Failed to rename the temporary file for ZIP';
 
             case ZipArchive::ER_CLOSE :
                 return 'Failed to close the ZIP Archive';
 
             case ZipArchive::ER_SEEK :
                 return 'Failure while seeking the ZIP Archive';
 
             case ZipArchive::ER_READ :
                 return 'Failure while reading the ZIP Archive';
 
             case ZipArchive::ER_WRITE :
                 return 'Failure while writing the ZIP Archive';
 
             case ZipArchive::ER_CRC :
                 return 'CRC failure within the ZIP Archive';
 
             case ZipArchive::ER_ZIPCLOSED :
                 return 'ZIP Archive already closed';
 
             case ZipArchive::ER_NOENT :
                 return 'No such file within the ZIP Archive';
 
             case ZipArchive::ER_EXISTS :
                 return 'ZIP Archive already exists';
 
             case ZipArchive::ER_OPEN :
                 return 'Can not open ZIP Archive';
 
             case ZipArchive::ER_TMPOPEN :
                 return 'Failure creating temporary ZIP Archive';
 
             case ZipArchive::ER_ZLIB :
                 return 'ZLib Problem';
 
             case ZipArchive::ER_MEMORY :
                 return 'Memory allocation problem while working on a ZIP Archive';
 
             case ZipArchive::ER_CHANGED :
                 return 'ZIP Entry has been changed';
 
             case ZipArchive::ER_COMPNOTSUPP :
                 return 'Compression method not supported within ZLib';
 
             case ZipArchive::ER_EOF :
                 return 'Premature EOF within ZIP Archive';
 
             case ZipArchive::ER_INVAL :
                 return 'Invalid argument for ZLIB';
 
             case ZipArchive::ER_NOZIP :
                 return 'Given file is no zip archive';
 
             case ZipArchive::ER_INTERNAL :
                 return 'Internal error while working on a ZIP Archive';
 
             case ZipArchive::ER_INCONS :
                 return 'Inconsistent ZIP archive';
 
             case ZipArchive::ER_REMOVE :
                 return 'Can not remove ZIP Archive';
 
             case ZipArchive::ER_DELETED :
                 return 'ZIP Entry has been deleted';
 
             default :
                 return 'Unknown error within ZIP Archive';
         }
     }
 
     /**
      * Returns the adapter name
      *
      * @return string
      */
     public function toString()
     {
         return 'Zip';
     }
 }