From c53d8d026021f97075fb2f4940ba22793c38fb6e Mon Sep 17 00:00:00 2001
From: davehauenstein <davehauenstein@d4e419ec-0920-11de-bbfd-a7c1bc4c261e>
Date: Wed, 15 Apr 2009 22:06:42 +0000
Subject: added toolbar; functionality includes refresh button to get back to
original page, print article, email a link to the article with a personal
note
git-svn-id: http://arc90labs-readability.googlecode.com/svn/trunk@31 d4e419ec-0920-11de-bbfd-a7c1bc4c261e
---
lib/Zend/Validate/Ccnum.php | 111 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 111 insertions(+)
create mode 100644 lib/Zend/Validate/Ccnum.php
(limited to 'lib/Zend/Validate/Ccnum.php')
diff --git a/lib/Zend/Validate/Ccnum.php b/lib/Zend/Validate/Ccnum.php
new file mode 100644
index 0000000..227a4ec
--- /dev/null
+++ b/lib/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;
+ }
+
+}
--
cgit v1.2.3