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

 <?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';
 
 /**
  * @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_Isbn extends Zend_Validate_Abstract
 {
     const AUTO    = 'auto';
     const ISBN10  = '10';
     const ISBN13  = '13';
     const INVALID = 'isbnInvalid';
     const NO_ISBN = 'isbnNoIsbn';
 
     /**
      * Validation failure message template definitions.
      *
      * @var array
      */
     protected $_messageTemplates = array(
         self::INVALID => "Invalid type given. String or integer expected",
         self::NO_ISBN => "'%value%' is not a valid ISBN number",
     );
 
     /**
      * Allowed type.
      *
      * @var string
      */
     protected $_type = self::AUTO;
 
     /**
      * Separator character.
      *
      * @var string
      */
     protected $_separator = '';
 
     /**
      * Set up options.
      *
      * @param  Zend_Config|array $options
      * @throws Zend_Validate_Exception When $options is not valid
      */
     public function __construct($options = array())
     {
         // prepare options
         if ($options instanceof Zend_Config) {
             $options = $options->toArray();
         }
         if (!is_array($options)) {
             /**
              * @see Zend_Validate_Exception
              */
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception('Invalid options provided.');
         }
 
         // set type
         if (array_key_exists('type', $options)) {
             $this->setType($options['type']);
         }
 
         // set separator
         if (array_key_exists('separator', $options)) {
             $this->setSeparator($options['separator']);
         }
     }
 
     /**
      * Detect input format.
      *
      * @return string
      */
     protected function _detectFormat()
     {
         // prepare separator and pattern list
         $sep      = quotemeta($this->_separator);
         $patterns = array();
         $lengths  = array();
 
         // check for ISBN-10
         if ($this->_type == self::ISBN10 || $this->_type == self::AUTO) {
             if (empty($sep)) {
                 $pattern = '/^[0-9]{9}[0-9X]{1}$/';
                 $length  = 10;
             } else {
                 $pattern = "/^[0-9]{1,7}[{$sep}]{1}[0-9]{1,7}[{$sep}]{1}[0-9]{1,7}[{$sep}]{1}[0-9X]{1}$/";
                 $length  = 13;
             }
 
             $patterns[$pattern] = self::ISBN10;
             $lengths[$pattern]  = $length;
         }
 
         // check for ISBN-13
         if ($this->_type == self::ISBN13 || $this->_type == self::AUTO) {
             if (empty($sep)) {
                 $pattern = '/^[0-9]{13}$/';
                 $length  = 13;
             } else {
                 $pattern = "/^[0-9]{1,9}[{$sep}]{1}[0-9]{1,5}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1}$/";
                 $length  = 17;
             }
 
             $patterns[$pattern] = self::ISBN13;
             $lengths[$pattern]  = $length;
         }
 
         // check pattern list
         foreach ($patterns as $pattern => $type) {
             if ((strlen($this->_value) == $lengths[$pattern]) && preg_match($pattern, $this->_value)) {
                 return $type;
             }
         }
 
         return null;
     }
 
     /**
      * Defined by Zend_Validate_Interface.
      *
      * Returns true if and only if $value is a valid ISBN.
      *
      * @param  string $value
      * @return boolean
      */
     public function isValid($value)
     {
         if (!is_string($value) && !is_int($value)) {
             $this->_error(self::INVALID);
             return false;
         }
 
         $value = (string) $value;
         $this->_setValue($value);
 
         switch ($this->_detectFormat()) {
             case self::ISBN10:
                 // sum
                 $isbn10 = str_replace($this->_separator, '', $value);
                 $sum    = 0;
                 for ($i = 0; $i < 9; $i++) {
                     $sum += (10 - $i) * $isbn10{$i};
                 }
 
                 // checksum
                 $checksum = 11 - ($sum % 11);
                 if ($checksum == 11) {
                     $checksum = '0';
                 } elseif ($checksum == 10) {
                     $checksum = 'X';
                 }
                 break;
 
             case self::ISBN13:
                 // sum
                 $isbn13 = str_replace($this->_separator, '', $value);
                 $sum    = 0;
                 for ($i = 0; $i < 12; $i++) {
                     if ($i % 2 == 0) {
                         $sum += $isbn13{$i};
                     } else {
                         $sum += 3 * $isbn13{$i};
                     }
                 }
                 // checksum
                 $checksum = 10 - ($sum % 10);
                 if ($checksum == 10) {
                     $checksum = '0';
                 }
                 break;
 
             default:
                 $this->_error(self::NO_ISBN);
                 return false;
         }
 
         // validate
         if (substr($this->_value, -1) != $checksum) {
             $this->_error(self::NO_ISBN);
             return false;
         }
         return true;
     }
 
     /**
      * Set separator characters.
      *
      * It is allowed only empty string, hyphen and space.
      *
      * @param  string $separator
      * @throws Zend_Validate_Exception When $separator is not valid
      * @return Zend_Validate_Isbn Provides a fluent interface
      */
     public function setSeparator($separator)
     {
         // check separator
         if (!in_array($separator, array('-', ' ', ''))) {
             /**
              * @see Zend_Validate_Exception
              */
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception('Invalid ISBN separator.');
         }
 
         $this->_separator = $separator;
         return $this;
     }
 
     /**
      * Get separator characters.
      *
      * @return string
      */
     public function getSeparator()
     {
         return $this->_separator;
     }
 
     /**
      * Set allowed ISBN type.
      *
      * @param  string $type
      * @throws Zend_Validate_Exception When $type is not valid
      * @return Zend_Validate_Isbn Provides a fluent interface
      */
     public function setType($type)
     {
         // check type
         if (!in_array($type, array(self::AUTO, self::ISBN10, self::ISBN13))) {
             /**
              * @see Zend_Validate_Exception
              */
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception('Invalid ISBN type');
         }
 
         $this->_type = $type;
         return $this;
     }
 
     /**
      * Get allowed ISBN type.
      *
      * @return string
      */
     public function getType()
     {
         return $this->_type;
     }
 }