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_Interface
  */
 // require_once 'Zend/Filter/Interface.php';
 
 /**
  * @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_RealPath implements Zend_Filter_Interface
 {
     /**
      * @var boolean $_pathExists
      */
     protected $_exists = true;
 
     /**
      * Class constructor
      *
      * @param boolean|Zend_Config $options Options to set
      */
     public function __construct($options = true)
     {
         $this->setExists($options);
     }
 
     /**
      * Returns true if the filtered path must exist
      *
      * @return boolean
      */
     public function getExists()
     {
         return $this->_exists;
     }
 
     /**
      * Sets if the path has to exist
      * TRUE when the path must exist
      * FALSE when not existing paths can be given
      *
      * @param boolean|Zend_Config $exists Path must exist
      * @return Zend_Filter_RealPath
      */
     public function setExists($exists)
     {
         if ($exists instanceof Zend_Config) {
             $exists = $exists->toArray();
         }
 
         if (is_array($exists)) {
             if (isset($exists['exists'])) {
                 $exists = (boolean) $exists['exists'];
             }
         }
 
         $this->_exists = (boolean) $exists;
         return $this;
     }
 
     /**
      * Defined by Zend_Filter_Interface
      *
      * Returns realpath($value)
      *
      * @param  string $value
      * @return string
      */
     public function filter($value)
     {
         $path = (string) $value;
         if ($this->_exists) {
             return realpath($path);
         }
 
         $realpath = @realpath($path);
         if ($realpath) {
             return $realpath;
         }
 
         $drive = '';
         if (substr(PHP_OS, 0, 3) == 'WIN') {
             $path = preg_replace('/[\\\\\/]/', DIRECTORY_SEPARATOR, $path);
             if (preg_match('/([a-zA-Z]\:)(.*)/', $path, $matches)) {
                 list($fullMatch, $drive, $path) = $matches;
             } else {
                 $cwd   = getcwd();
                 $drive = substr($cwd, 0, 2);
                 if (substr($path, 0, 1) != DIRECTORY_SEPARATOR) {
                     $path = substr($cwd, 3) . DIRECTORY_SEPARATOR . $path;
                 }
             }
         } elseif (substr($path, 0, 1) != DIRECTORY_SEPARATOR) {
             $path = getcwd() . DIRECTORY_SEPARATOR . $path;
         }
 
         $stack = array();
         $parts = explode(DIRECTORY_SEPARATOR, $path);
         foreach ($parts as $dir) {
             if (strlen($dir) && $dir !== '.') {
                 if ($dir == '..') {
                     array_pop($stack);
                 } else {
                     array_push($stack, $dir);
                 }
             }
         }
 
         return $drive . DIRECTORY_SEPARATOR . implode(DIRECTORY_SEPARATOR, $stack);
     }
 }