diff options
author | mattpiwik <matthieu.aubry@gmail.com> | 2008-07-27 04:13:03 +0400 |
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committer | mattpiwik <matthieu.aubry@gmail.com> | 2008-07-27 04:13:03 +0400 |
commit | 3548f58860adb6febc0cb35a7ee1d905601501c8 (patch) | |
tree | 9167717f4628358e69cbb8c23a2ae205580cb5fa /libs/Zend/Validate/Ccnum.php | |
parent | 0825047a9ff4eb4a8d9ceaef076a490f781843ea (diff) |
- fix #190: Include piwik RSS blog as a default widget in the dashboard
available in the plugin ExampleRssWidget
git-svn-id: http://dev.piwik.org/svn/trunk@577 59fd770c-687e-43c8-a1e3-f5a4ff64c105
Diffstat (limited to 'libs/Zend/Validate/Ccnum.php')
-rw-r--r-- | libs/Zend/Validate/Ccnum.php | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/libs/Zend/Validate/Ccnum.php b/libs/Zend/Validate/Ccnum.php new file mode 100644 index 0000000000..227a4ec334 --- /dev/null +++ b/libs/Zend/Validate/Ccnum.php @@ -0,0 +1,111 @@ +<?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) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id: Ccnum.php 8064 2008-02-16 10:58:39Z thomas $ + */ + + +/** + * @see Zend_Validate_Abstract + */ +require_once 'Zend/Validate/Abstract.php'; + + +/** + * @category Zend + * @package Zend_Validate + * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Validate_Ccnum extends Zend_Validate_Abstract +{ + /** + * Validation failure message key for when the value is not of valid length + */ + const LENGTH = 'ccnumLength'; + + /** + * Validation failure message key for when the value fails the mod-10 checksum + */ + const CHECKSUM = 'ccnumChecksum'; + + /** + * Digits filter for input + * + * @var Zend_Filter_Digits + */ + protected static $_filter = null; + + /** + * Validation failure message template definitions + * + * @var array + */ + protected $_messageTemplates = array( + self::LENGTH => "'%value%' must contain between 13 and 19 digits", + self::CHECKSUM => "Luhn algorithm (mod-10 checksum) failed on '%value%'" + ); + + /** + * 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 (null === self::$_filter) { + /** + * @see Zend_Filter_Digits + */ + require_once 'Zend/Filter/Digits.php'; + self::$_filter = new Zend_Filter_Digits(); + } + + $valueFiltered = self::$_filter->filter($value); + + $length = strlen($valueFiltered); + + if ($length < 13 || $length > 19) { + $this->_error(self::LENGTH); + return false; + } + + $sum = 0; + $weight = 2; + + for ($i = $length - 2; $i >= 0; $i--) { + $digit = $weight * $valueFiltered[$i]; + $sum += floor($digit / 10) + $digit % 10; + $weight = $weight % 2 + 1; + } + + if ((10 - $sum % 10) % 10 != $valueFiltered[$length - 1]) { + $this->_error(self::CHECKSUM, $valueFiltered); + return false; + } + + return true; + } + +} |