File indexing completed on 2024-12-22 05:37:11

 <?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_Validate
  * @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_Validate_Abstract
  */
 // require_once 'Zend/Validate/Abstract.php';
 
 /**
  * Validator for the file extension of a file
  *
  * @category  Zend
  * @package   Zend_Validate
  * @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_Validate_File_Extension extends Zend_Validate_Abstract
 {
     /**
      * @const string Error constants
      */
     const FALSE_EXTENSION = 'fileExtensionFalse';
     const NOT_FOUND       = 'fileExtensionNotFound';
 
     /**
      * @var array Error message templates
      */
     protected $_messageTemplates = array(
         self::FALSE_EXTENSION => "File '%value%' has a false extension",
         self::NOT_FOUND       => "File '%value%' is not readable or does not exist",
     );
 
     /**
      * Internal list of extensions
      * @var string
      */
     protected $_extension = '';
 
     /**
      * Validate case sensitive
      *
      * @var boolean
      */
     protected $_case = false;
 
     /**
      * @var array Error message template variables
      */
     protected $_messageVariables = array(
         'extension' => '_extension'
     );
 
     /**
      * Sets validator options
      *
      * @param string|array|Zend_Config $options
      */
     public function __construct($options)
     {
         if ($options instanceof Zend_Config) {
             $options = $options->toArray();
         }
 
         if (1 < func_num_args()) {
             $case = func_get_arg(1);
             $this->setCase($case);
         }
 
         if (is_array($options) and isset($options['case'])) {
             $this->setCase($options['case']);
             unset($options['case']);
         }
 
         $this->setExtension($options);
     }
 
     /**
      * Returns the case option
      *
      * @return boolean
      */
     public function getCase()
     {
         return $this->_case;
     }
 
     /**
      * Sets the case to use
      *
      * @param  boolean $case
      * @return Zend_Validate_File_Extension Provides a fluent interface
      */
     public function setCase($case)
     {
         $this->_case = (boolean) $case;
         return $this;
     }
 
     /**
      * Returns the set file extension
      *
      * @return array
      */
     public function getExtension()
     {
         $extension = explode(',', $this->_extension);
 
         return $extension;
     }
 
     /**
      * Sets the file extensions
      *
      * @param  string|array $extension The extensions to validate
      * @return Zend_Validate_File_Extension Provides a fluent interface
      */
     public function setExtension($extension)
     {
         $this->_extension = null;
         $this->addExtension($extension);
         return $this;
     }
 
     /**
      * Adds the file extensions
      *
      * @param  string|array $extension The extensions to add for validation
      * @return Zend_Validate_File_Extension Provides a fluent interface
      */
     public function addExtension($extension)
     {
         $extensions = $this->getExtension();
         if (is_string($extension)) {
             $extension = explode(',', $extension);
         }
 
         foreach ($extension as $content) {
             if (empty($content) || !is_string($content)) {
                 continue;
             }
 
             $extensions[] = trim($content);
         }
         $extensions = array_unique($extensions);
 
         // Sanity check to ensure no empty values
         foreach ($extensions as $key => $ext) {
             if (empty($ext)) {
                 unset($extensions[$key]);
             }
         }
 
         $this->_extension = implode(',', $extensions);
 
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if the fileextension of $value is included in the
      * set extension list
      *
      * @param  string  $value Real file to check for extension
      * @param  array   $file  File data from Zend_File_Transfer
      * @return boolean
      */
     public function isValid($value, $file = null)
     {
         // Is file readable ?
         // require_once 'Zend/Loader.php';
         if (!Zend_Loader::isReadable($value)) {
             return $this->_throw($file, self::NOT_FOUND);
         }
 
         if ($file !== null) {
             $info['extension'] = substr($file['name'], strrpos($file['name'], '.') + 1);
         } else {
             $info = pathinfo($value);
             if (!array_key_exists('extension', $info)) {
                 // From the manual at http://php.net/pathinfo:
                 // "If the path does not have an extension, no extension element
                 // will be returned (see second example below)."
                 return false;
             }
         }
 
         $extensions = $this->getExtension();
 
         if ($this->_case && (in_array($info['extension'], $extensions))) {
             return true;
         } else if (!$this->getCase()) {
             foreach ($extensions as $extension) {
                 if (strtolower($extension) == strtolower($info['extension'])) {
                     return true;
                 }
             }
         }
 
         return $this->_throw($file, self::FALSE_EXTENSION);
     }
 
     /**
      * Throws an error of the given type
      *
      * @param  string $file
      * @param  string $errorType
      * @return false
      */
     protected function _throw($file, $errorType)
     {
         if (null !== $file) {
             $this->_value = $file['name'];
         }
 
         $this->_error($errorType);
         return false;
     }
 }