<?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) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Iban.php 24593 2012-01-05 20:35:02Z matthew $

 */

/**

 * @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) 2005-2012 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}$/',

        'AT' => '/^AT[0-9]{2}[0-9]{5}[0-9]{11}$/',

        '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}$/',

        'CH' => '/^CH[0-9]{2}[0-9]{5}[A-Z0-9]{12}$/',

        '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}$/',

        '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]{13}$/',

        'FI' => '/^FI[0-9]{2}[0-9]{6}[0-9]{8}$/',

        'GB' => '/^GB[0-9]{2}[A-Z]{4}[0-9]{14}$/',

        'GI' => '/^GI[0-9]{2}[A-Z]{4}[A-Z0-9]{15}$/',

        'GR' => '/^GR[0-9]{2}[0-9]{7}[A-Z0-9]{16}$/',

        '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}$/',

        '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}$/',

        '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}$/',

        'MK' => '/^MK[0-9]{2}[A-Z]{3}[A-Z0-9]{10}[0-9]{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}$/',

        'PL' => '/^PL[0-9]{2}[0-9]{8}[0-9]{16}$/',

        'PT' => '/^PT[0-9]{2}[0-9]{8}[0-9]{13}$/',

        'RO' => '/^RO[0-9]{2}[A-Z]{4}[A-Z0-9]{16}$/',

        '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}$/',

        'TN' => '/^TN[0-9]{2}[0-9]{5}[0-9]{15}$/',

        'TR' => '/^TR[0-9]{2}[0-9]{5}[A-Z0-9]{17}$/'

    );

    /**

     * Sets validator options

     *

     * @param  string|Zend_Config|Zend_Locale $locale OPTIONAL

     * @return void

     */

    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

     * @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;

    }

}