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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';
 
 /**
  * @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_CreditCard extends Zend_Validate_Abstract
 {
     /**
      * Detected CCI list
      *
      * @var string
      */
     const ALL              = 'All';
     const AMERICAN_EXPRESS = 'American_Express';
     const UNIONPAY         = 'Unionpay';
     const DINERS_CLUB      = 'Diners_Club';
     const DINERS_CLUB_US   = 'Diners_Club_US';
     const DISCOVER         = 'Discover';
     const JCB              = 'JCB';
     const LASER            = 'Laser';
     const MAESTRO          = 'Maestro';
     const MASTERCARD       = 'Mastercard';
     const SOLO             = 'Solo';
     const VISA             = 'Visa';
 
     const CHECKSUM       = 'creditcardChecksum';
     const CONTENT        = 'creditcardContent';
     const INVALID        = 'creditcardInvalid';
     const LENGTH         = 'creditcardLength';
     const PREFIX         = 'creditcardPrefix';
     const SERVICE        = 'creditcardService';
     const SERVICEFAILURE = 'creditcardServiceFailure';
 
     /**
      * Validation failure message template definitions
      *
      * @var array
      */
     protected $_messageTemplates = array(
         self::CHECKSUM       => "'%value%' seems to contain an invalid checksum",
         self::CONTENT        => "'%value%' must contain only digits",
         self::INVALID        => "Invalid type given. String expected",
         self::LENGTH         => "'%value%' contains an invalid amount of digits",
         self::PREFIX         => "'%value%' is not from an allowed institute",
         self::SERVICE        => "'%value%' seems to be an invalid creditcard number",
         self::SERVICEFAILURE => "An exception has been raised while validating '%value%'",
     );
 
     /**
      * List of allowed CCV lengths
      *
      * @var array
      */
     protected $_cardLength = array(
         self::AMERICAN_EXPRESS => array(15),
         self::DINERS_CLUB      => array(14),
         self::DINERS_CLUB_US   => array(16),
         self::DISCOVER         => array(16),
         self::JCB              => array(16),
         self::LASER            => array(16, 17, 18, 19),
         self::MAESTRO          => array(12, 13, 14, 15, 16, 17, 18, 19),
         self::MASTERCARD       => array(16),
         self::SOLO             => array(16, 18, 19),
         self::UNIONPAY         => array(16, 17, 18, 19),
         self::VISA             => array(16),
     );
 
     /**
      * List of accepted CCV provider tags
      *
      * @var array
      */
     protected $_cardType = array(
         self::AMERICAN_EXPRESS => array('34', '37'),
         self::DINERS_CLUB      => array('300', '301', '302', '303', '304', '305', '36'),
         self::DINERS_CLUB_US   => array('54', '55'),
         self::DISCOVER         => array('6011', '622126', '622127', '622128', '622129', '62213',
                                         '62214', '62215', '62216', '62217', '62218', '62219',
                                         '6222', '6223', '6224', '6225', '6226', '6227', '6228',
                                         '62290', '62291', '622920', '622921', '622922', '622923',
                                         '622924', '622925', '644', '645', '646', '647', '648',
                                         '649', '65'),
         self::JCB              => array('3528', '3529', '353', '354', '355', '356', '357', '358'),
         self::LASER            => array('6304', '6706', '6771', '6709'),
         self::MAESTRO          => array('5018', '5020', '5038', '6304', '6759', '6761', '6763'),
         self::MASTERCARD       => array('51', '52', '53', '54', '55'),
         self::SOLO             => array('6334', '6767'),
         self::UNIONPAY         => array('622126', '622127', '622128', '622129', '62213', '62214',
                                         '62215', '62216', '62217', '62218', '62219', '6222', '6223',
                                         '6224', '6225', '6226', '6227', '6228', '62290', '62291',
                                         '622920', '622921', '622922', '622923', '622924', '622925'),
         self::VISA             => array('4'),
     );
 
     /**
      * CCIs which are accepted by validation
      *
      * @var array
      */
     protected $_type = array();
 
     /**
      * Service callback for additional validation
      *
      * @var callback
      */
     protected $_service;
 
     /**
      * Constructor
      *
      * @param string|array|Zend_Config $options OPTIONAL Type of CCI to allow
      */
     public function __construct($options = array())
     {
         if ($options instanceof Zend_Config) {
             $options = $options->toArray();
         } else if (!is_array($options)) {
             $options = func_get_args();
             $temp['type'] = array_shift($options);
             if (!empty($options)) {
                 $temp['service'] = array_shift($options);
             }
 
             $options = $temp;
         }
 
         if (!array_key_exists('type', $options)) {
             $options['type'] = self::ALL;
         }
 
         $this->setType($options['type']);
         if (array_key_exists('service', $options)) {
             $this->setService($options['service']);
         }
     }
 
     /**
      * Returns a list of accepted CCIs
      *
      * @return array
      */
     public function getType()
     {
         return $this->_type;
     }
 
     /**
      * Sets CCIs which are accepted by validation
      *
      * @param string|array $type Type to allow for validation
      * @return Zend_Validate_CreditCard Provides a fluent interface
      */
     public function setType($type)
     {
         $this->_type = array();
         return $this->addType($type);
     }
 
     /**
      * Adds a CCI to be accepted by validation
      *
      * @param string|array $type Type to allow for validation
      * @return Zend_Validate_CreditCard Provides a fluent interface
      */
     public function addType($type)
     {
         if (is_string($type)) {
             $type = array($type);
         }
 
         foreach($type as $typ) {
             if (defined('self::' . strtoupper($typ)) && !in_array($typ, $this->_type)) {
                 $this->_type[] = $typ;
             }
 
             if (($typ == self::ALL)) {
                 $this->_type = array_keys($this->_cardLength);
             }
         }
 
         return $this;
     }
 
     /**
      * Returns the actual set service
      *
      * @return callback
      */
     public function getService()
     {
         return $this->_service;
     }
 
     /**
      * Sets a new callback for service validation
      *
      * @param mixed $service
      * @throws Zend_Validate_Exception
      * @return $this
      */
     public function setService($service)
     {
         if (!is_callable($service)) {
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception('Invalid callback given');
         }
 
         $this->_service = $service;
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if $value follows the Luhn algorithm (mod-10 checksum)
      *
      * @param  string $value
      * @return boolean
      */
     public function isValid($value)
     {
         $this->_setValue($value);
 
         if (!is_string($value)) {
             $this->_error(self::INVALID, $value);
             return false;
         }
 
         if (!ctype_digit($value)) {
             $this->_error(self::CONTENT, $value);
             return false;
         }
 
         $length = strlen($value);
         $types  = $this->getType();
         $foundp = false;
         $foundl = false;
         foreach ($types as $type) {
             foreach ($this->_cardType[$type] as $prefix) {
                 if (substr($value, 0, strlen($prefix)) == $prefix) {
                     $foundp = true;
                     if (in_array($length, $this->_cardLength[$type])) {
                         $foundl = true;
                         break 2;
                     }
                 }
             }
         }
 
         if ($foundp == false){
             $this->_error(self::PREFIX, $value);
             return false;
         }
 
         if ($foundl == false) {
             $this->_error(self::LENGTH, $value);
             return false;
         }
 
         $sum    = 0;
         $weight = 2;
 
         for ($i = $length - 2; $i >= 0; $i--) {
             $digit = $weight * $value[$i];
             $sum += floor($digit / 10) + $digit % 10;
             $weight = $weight % 2 + 1;
         }
 
         if ((10 - $sum % 10) % 10 != $value[$length - 1]) {
             $this->_error(self::CHECKSUM, $value);
             return false;
         }
 
         if (!empty($this->_service)) {
             try {
                 // require_once 'Zend/Validate/Callback.php';
                 $callback = new Zend_Validate_Callback($this->_service);
                 $callback->setOptions($this->_type);
                 if (!$callback->isValid($value)) {
                     $this->_error(self::SERVICE, $value);
                     return false;
                 }
             } catch (Zend_Exception $e) {
                 $this->_error(self::SERVICEFAILURE, $value);
                 return false;
             }
         }
 
         return true;
     }
 }