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 <?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';
 
 /**
  * Validates IBAN Numbers (International Bank Account Numbers)
  *
  * @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_Iban extends Zend_Validate_Abstract
 {
     const NOTSUPPORTED = 'ibanNotSupported';
     const FALSEFORMAT  = 'ibanFalseFormat';
     const CHECKFAILED  = 'ibanCheckFailed';
 
     /**
      * Validation failure message template definitions
      *
      * @var array
      */
     protected $_messageTemplates = array(
         self::NOTSUPPORTED => "Unknown country within the IBAN '%value%'",
         self::FALSEFORMAT  => "'%value%' has a false IBAN format",
         self::CHECKFAILED  => "'%value%' has failed the IBAN check",
     );
 
     /**
      * Optional locale
      *
      * @var string|Zend_Locale|null
      */
     protected $_locale;
 
     /**
      * IBAN regexes by region
      *
      * @var array
      */
     protected $_ibanregex = array(
         'AD' => '/^AD[0-9]{2}[0-9]{8}[A-Z0-9]{12}$/',
         'AE' => '/^AE[0-9]{2}[0-9]{3}[0-9]{16}$/',
         'AL' => '/^AL[0-9]{2}[0-9]{8}[A-Z0-9]{16}$/',
         'AT' => '/^AT[0-9]{2}[0-9]{5}[0-9]{11}$/',
         'AZ' => '/^AZ[0-9]{2}[0-9]{4}[A-Z0-9]{20}$/',
         'BA' => '/^BA[0-9]{2}[0-9]{6}[0-9]{10}$/',
         'BE' => '/^BE[0-9]{2}[0-9]{3}[0-9]{9}$/',
         'BG' => '/^BG[0-9]{2}[A-Z]{4}[0-9]{4}[0-9]{2}[A-Z0-9]{8}$/',
         'BH' => '/^BH[0-9]{2}[A-Z]{4}[A-Z0-9]{14}$/',
         'BR' => '/^BR[0-9]{2}[0-9]{8}[0-9]{5}[0-9]{10}[A-Z]{1}[A-Z0-9]{1}$/',
         'CH' => '/^CH[0-9]{2}[0-9]{5}[A-Z0-9]{12}$/',
         'CR' => '/^CR[0-9]{2}[0-9]{3}[0-9]{14}$/',
         'CS' => '/^CS[0-9]{2}[0-9]{3}[0-9]{15}$/',
         'CY' => '/^CY[0-9]{2}[0-9]{8}[A-Z0-9]{16}$/',
         'CZ' => '/^CZ[0-9]{2}[0-9]{4}[0-9]{16}$/',
         'DE' => '/^DE[0-9]{2}[0-9]{8}[0-9]{10}$/',
         'DK' => '/^DK[0-9]{2}[0-9]{4}[0-9]{10}$/',
         'DO' => '/^DO[0-9]{2}[A-Z0-9]{4}[0-9]{20}$/',
         'EE' => '/^EE[0-9]{2}[0-9]{4}[0-9]{12}$/',
         'ES' => '/^ES[0-9]{2}[0-9]{8}[0-9]{12}$/',
         'FR' => '/^FR[0-9]{2}[0-9]{10}[A-Z0-9]{11}[0-9]{2}$/',
         'FI' => '/^FI[0-9]{2}[0-9]{6}[0-9]{8}$/',
         'FO' => '/^FO[0-9]{2}[0-9]{4}[0-9]{9}[0-9]{1}$/',
         'GB' => '/^GB[0-9]{2}[A-Z]{4}[0-9]{14}$/',
         'GE' => '/^GE[0-9]{2}[A-Z]{2}[0-9]{16}$/',
         'GI' => '/^GI[0-9]{2}[A-Z]{4}[A-Z0-9]{15}$/',
         'GL' => '/^GL[0-9]{2}[0-9]{4}[0-9]{9}[0-9]{1}$/',
         'GR' => '/^GR[0-9]{2}[0-9]{7}[A-Z0-9]{16}$/',
         'GT' => '/^GT[0-9]{2}[A-Z0-9]{4}[A-Z0-9]{20}$/',
         'HR' => '/^HR[0-9]{2}[0-9]{7}[0-9]{10}$/',
         'HU' => '/^HU[0-9]{2}[0-9]{7}[0-9]{1}[0-9]{15}[0-9]{1}$/',
         'IE' => '/^IE[0-9]{2}[A-Z0-9]{4}[0-9]{6}[0-9]{8}$/',
         'IL' => '/^IL[0-9]{2}[0-9]{3}[0-9]{3}[0-9]{13}$/',
         'IS' => '/^IS[0-9]{2}[0-9]{4}[0-9]{18}$/',
         'IT' => '/^IT[0-9]{2}[A-Z]{1}[0-9]{10}[A-Z0-9]{12}$/',
         'KW' => '/^KW[0-9]{2}[A-Z]{4}[0-9]{3}[0-9]{22}$/',
         'KZ' => '/^KZ[A-Z]{2}[0-9]{2}[0-9]{3}[A-Z0-9]{13}$/',
         'LB' => '/^LB[0-9]{2}[0-9]{4}[A-Z0-9]{20}$/',
         'LI' => '/^LI[0-9]{2}[0-9]{5}[A-Z0-9]{12}$/',
         'LU' => '/^LU[0-9]{2}[0-9]{3}[A-Z0-9]{13}$/',
         'LT' => '/^LT[0-9]{2}[0-9]{5}[0-9]{11}$/',
         'LV' => '/^LV[0-9]{2}[A-Z]{4}[A-Z0-9]{13}$/',
         'MC' => '/^MC[0-9]{2}[0-9]{5}[0-9]{5}[A-Z0-9]{11}[0-9]{2}$/',
         'MD' => '/^MD[0-9]{2}[A-Z0-9]{20}$/',
         'ME' => '/^ME[0-9]{2}[0-9]{3}[0-9]{13}[0-9]{2}$/',
         'MK' => '/^MK[0-9]{2}[0-9]{3}[A-Z0-9]{10}[0-9]{2}$/',
         'MR' => '/^MR13[0-9]{5}[0-9]{5}[0-9]{11}[0-9]{2}$/',
         'MU' => '/^MU[0-9]{2}[A-Z]{4}[0-9]{2}[0-9]{2}[0-9]{12}[0-9]{3}[A-Z]{2}$/',
         'MT' => '/^MT[0-9]{2}[A-Z]{4}[0-9]{5}[A-Z0-9]{18}$/',
         'NL' => '/^NL[0-9]{2}[A-Z]{4}[0-9]{10}$/',
         'NO' => '/^NO[0-9]{2}[0-9]{4}[0-9]{7}$/',
         'PK' => '/^PK[0-9]{2}[A-Z]{4}[0-9]{16}$/',
         'PL' => '/^PL[0-9]{2}[0-9]{8}[0-9]{16}$/',
         'PS' => '/^PS[0-9]{2}[A-Z]{4}[0-9]{21}$/',
         'PT' => '/^PT[0-9]{2}[0-9]{8}[0-9]{13}$/',
         'RO' => '/^RO[0-9]{2}[A-Z]{4}[A-Z0-9]{16}$/',
         'RS' => '/^RS[0-9]{2}[0-9]{3}[0-9]{13}[0-9]{2}$/',
         'SA' => '/^SA[0-9]{2}[0-9]{2}[A-Z0-9]{18}$/',
         'SE' => '/^SE[0-9]{2}[0-9]{3}[0-9]{17}$/',
         'SI' => '/^SI[0-9]{2}[0-9]{5}[0-9]{8}[0-9]{2}$/',
         'SK' => '/^SK[0-9]{2}[0-9]{4}[0-9]{16}$/',
         'SM' => '/^SM[0-9]{2}[A-Z]{1}[0-9]{5}[0-9]{5}[A-Z0-9]{12}$/',
         'TN' => '/^TN[0-9]{2}[0-9]{5}[0-9]{15}$/',
         'TR' => '/^TR[0-9]{2}[0-9]{5}[A-Z0-9]{17}$/',
         'VG' => '/^VG[0-9]{2}[A-Z]{4}[0-9]{16}$/'
     );
 
     /**
      * Sets validator options
      *
      * @param string|Zend_Config|Zend_Locale $locale OPTIONAL
      */
     public function __construct($locale = null)
     {
         if ($locale instanceof Zend_Config) {
             $locale = $locale->toArray();
         }
 
         if (is_array($locale)) {
             if (array_key_exists('locale', $locale)) {
                 $locale = $locale['locale'];
             } else {
                 $locale = null;
             }
         }
 
         if (empty($locale)) {
             // require_once 'Zend/Registry.php';
             if (Zend_Registry::isRegistered('Zend_Locale')) {
                 $locale = Zend_Registry::get('Zend_Locale');
             }
         }
 
         if ($locale !== null) {
             $this->setLocale($locale);
         }
     }
 
     /**
      * Returns the locale option
      *
      * @return string|Zend_Locale|null
      */
     public function getLocale()
     {
         return $this->_locale;
     }
 
     /**
      * Sets the locale option
      *
      * @param  string|Zend_Locale $locale
      * @throws Zend_Locale_Exception
      * @throws Zend_Validate_Exception
      * @return Zend_Validate_Date provides a fluent interface
      */
     public function setLocale($locale = null)
     {
         if ($locale !== false) {
             // require_once 'Zend/Locale.php';
             $locale = Zend_Locale::findLocale($locale);
             if (strlen($locale) < 4) {
                 // require_once 'Zend/Validate/Exception.php';
                 throw new Zend_Validate_Exception('Region must be given for IBAN validation');
             }
         }
 
         $this->_locale = $locale;
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if $value is a valid IBAN
      *
      * @param  string $value
      * @return boolean
      */
     public function isValid($value)
     {
         $value = strtoupper($value);
         $this->_setValue($value);
 
         if (empty($this->_locale)) {
             $region = substr($value, 0, 2);
         } else {
             $region = new Zend_Locale($this->_locale);
             $region = $region->getRegion();
         }
 
         if (!array_key_exists($region, $this->_ibanregex)) {
             $this->_setValue($region);
             $this->_error(self::NOTSUPPORTED);
             return false;
         }
 
         if (!preg_match($this->_ibanregex[$region], $value)) {
             $this->_error(self::FALSEFORMAT);
             return false;
         }
 
         $format = substr($value, 4) . substr($value, 0, 4);
         $format = str_replace(
             array('A',  'B',  'C',  'D',  'E',  'F',  'G',  'H',  'I',  'J',  'K',  'L',  'M',
                   'N',  'O',  'P',  'Q',  'R',  'S',  'T',  'U',  'V',  'W',  'X',  'Y',  'Z'),
             array('10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22',
                   '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35'),
             $format);
 
         $temp = intval(substr($format, 0, 1));
         $len  = strlen($format);
         for ($x = 1; $x < $len; ++$x) {
             $temp *= 10;
             $temp += intval(substr($format, $x, 1));
             $temp %= 97;
         }
 
         if ($temp != 1) {
             $this->_error(self::CHECKFAILED);
             return false;
         }
 
         return true;
     }
 }