File indexing completed on 2024-06-16 05:30:32

 <?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_File_Hash
  */
 // require_once 'Zend/Validate/File/Hash.php';
 
 /**
  * Validator for the crc32 hash of given files
  *
  * @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_Crc32 extends Zend_Validate_File_Hash
 {
     /**
      * @const string Error constants
      */
     const DOES_NOT_MATCH = 'fileCrc32DoesNotMatch';
     const NOT_DETECTED   = 'fileCrc32NotDetected';
     const NOT_FOUND      = 'fileCrc32NotFound';
 
     /**
      * @var array Error message templates
      */
     protected $_messageTemplates = array(
         self::DOES_NOT_MATCH => "File '%value%' does not match the given crc32 hashes",
         self::NOT_DETECTED   => "A crc32 hash could not be evaluated for the given file",
         self::NOT_FOUND      => "File '%value%' is not readable or does not exist",
     );
 
     /**
      * Hash of the file
      *
      * @var string
      */
     protected $_hash;
 
     /**
      * Sets validator options
      *
      * @param  string|array|Zend_Config $options
      * @throws Zend_Validate_Exception
      * @return Zend_Validate_File_Crc32
      */
     public function __construct($options)
     {
         if ($options instanceof Zend_Config) {
             $options = $options->toArray();
         } elseif (is_scalar($options)) {
             $options = array('hash1' => $options);
         } elseif (!is_array($options)) {
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception('Invalid options to validator provided');
         }
 
         $this->setCrc32($options);
     }
 
     /**
      * Returns all set crc32 hashes
      *
      * @return array
      */
     public function getCrc32()
     {
         return $this->getHash();
     }
 
     /**
      * Sets the crc32 hash for one or multiple files
      *
      * @param  string|array $options
      * @return Zend_Validate_File_Hash Provides a fluent interface
      */
     public function setHash($options)
     {
         if (!is_array($options)) {
             $options = array($options);
         }
 
         $options['algorithm'] = 'crc32';
         parent::setHash($options);
         return $this;
     }
 
     /**
      * Sets the crc32 hash for one or multiple files
      *
      * @param  string|array $options
      * @return Zend_Validate_File_Hash Provides a fluent interface
      */
     public function setCrc32($options)
     {
         $this->setHash($options);
         return $this;
     }
 
     /**
      * Adds the crc32 hash for one or multiple files
      *
      * @param  string|array $options
      * @return Zend_Validate_File_Hash Provides a fluent interface
      */
     public function addHash($options)
     {
         if (!is_array($options)) {
             $options = array($options);
         }
 
         $options['algorithm'] = 'crc32';
         parent::addHash($options);
         return $this;
     }
 
     /**
      * Adds the crc32 hash for one or multiple files
      *
      * @param  string|array $options
      * @return Zend_Validate_File_Hash Provides a fluent interface
      */
     public function addCrc32($options)
     {
         $this->addHash($options);
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if the given file confirms the set hash
      *
      * @param  string $value Filename to check for hash
      * @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);
         }
 
         $hashes = array_unique(array_keys($this->_hash));
         $filehash = hash_file('crc32', $value);
         if ($filehash === false) {
             return $this->_throw($file, self::NOT_DETECTED);
         }
 
         foreach($hashes as $hash) {
             if ($filehash === $hash) {
                 return true;
             }
         }
 
         return $this->_throw($file, self::DOES_NOT_MATCH);
     }
 }