Current File : /home/lightco1/luminero.com.au/administrator/components/com_virtuemart/helpers/creditcard.php
<?php
/**
*
* Data module for shop credit cards
*
* @package VirtueMart
* @subpackage CreditCard
* @author RickG
* @author Valerie Isaksen
* @link https://virtuemart.net
* @copyright Copyright (c) 2004 - 2010 VirtueMart Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* VirtueMart is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* @version $Id: creditcard.php 9413 2017-01-04 17:20:58Z Milbo $
*/
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die('Restricted access');
if (!class_exists('VmModel'))
require(VMPATH_ADMIN . DS . 'helpers' . DS . 'vmmodel.php');
/**
* Model class for shop credit cards
*
* @package VirtueMart
* @subpackage CreditCard
* @author RickG
* @author Valérie Isakesn
*/
class Creditcard {
/**
* Validates the Payment Method (Credit Card Number)
* Adapted From CreditCard Class
* Copyright (C) 2002 Daniel Fr�z Costa
*
* Documentation:
*
* Card Type Prefix Length Check digit
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* MasterCard 51-55 16 mod 10
* Visa 4 13, 16 mod 10
* AMEX 34, 37 15 mod 10
* Dinners Club/Carte Blanche 300-305, 36, 38 14 mod 10
* Discover 6011 16 mod 10
* enRoute 2014, 2149 15 any
* JCB 3 16 mod 10
* JCB 2131, 1800 15 mod 10
*
* More references:
* http://www.beachnet.com/~hstiles/cardtype.hthml.
* http://www.braemoor.co.uk/software/creditcard.shtml
* http://en.wikipedia.org/wiki/Credit_card_number
*
* @param string $creditcard_code
* @param string $cardnum
* @return boolean
*/
static function validate_credit_card_number($creditcard_code, $cardnum) {
$cardnum = str_replace(" ", "", $cardnum);
$matches = array();
$regex = '/^[0-9]{11,19}$/';
if(!preg_match ($regex, $cardnum, $matches)){
return false;
}
$number = self::_strtonum($cardnum);
if (empty($number) || !self::mod10($number)) {
return false;
}
return true;
}
/*
* _strtonum private method
* return formated string - only digits
*/
static function _strtonum($string) {
$nstr = "";
for ($i = 0; $i < strlen($string); $i++) {
if (!is_numeric($string{$i}))
continue;
$nstr = "$nstr" . $string{$i};
}
return $nstr;
}
/*
* mod10 method - Luhn check digit algorithm
* return 0 if true and !0 if false
*/
static function mod10($card_number) {
$digit_array = array();
$cnt = 0;
//Reverse the card number
$card_temp = strrev($card_number);
//Multiple every other number by 2 then ( even placement )
//Add the digits and place in an array
for ($i = 1; $i <= strlen($card_temp) - 1; $i = $i + 2) {
//multiply every other digit by 2
$t = substr($card_temp, $i, 1);
$t = $t * 2;
//if there are more than one digit in the
//result of multipling by two ex: 7 * 2 = 14
//then add the two digits together ex: 1 + 4 = 5
if (strlen($t) > 1) {
//add the digits together
$tmp = 0;
//loop through the digits that resulted of
//the multiplication by two above and add them
//together
for ($s = 0; $s < strlen($t); $s++) {
$tmp = substr($t, $s, 1) + $tmp;
}
} else { // result of (* 2) is only one digit long
$tmp = $t;
}
//place the result in an array for later
//adding to the odd digits in the credit card number
$digit_array [$cnt++] = $tmp;
}
$tmp = 0;
//Add the numbers not doubled earlier ( odd placement )
for ($i = 0; $i <= strlen($card_temp); $i = $i + 2) {
$tmp = substr($card_temp, $i, 1) + $tmp;
}
//Add the earlier doubled and digit-added numbers to the result
$result = $tmp + array_sum($digit_array);
//Check to make sure that the remainder
//of dividing by 10 is 0 by using the modulas
//operator
return ($result % 10 == 0);
}
/*
* validate_credit_card_cvv
* The three- or four-digit number on the back of a credit card (on the front for American Express).
* @author Valerie Isaksen
*/
static function validate_credit_card_cvv($creditcard_type, $cvv, $required = true, $creditcard_number='') {
if ($required and empty($cvv)) return false;
if (empty($creditcard_number)) return true; // for BC reasons
$firstnumber = substr($creditcard_number, 0, 1);
switch (strtoupper($firstnumber)) {
case '3':
$cvv_digits = 4;
break;
default:
$cvv_digits = 3;
}
if (strlen($cvv) == $cvv_digits
&& strspn($cvv, '0123456789') == $cvv_digits) {
return true;
}
return false;
}
/**
* @param $creditcard_type
* @param $month
* @param $year
* @return bool
* @author valerie isaksen
*/
static function validate_credit_card_date($creditcard_type, $month, $year) {
$expires = DateTime::createFromFormat('mY', $month.$year);
$now = new DateTime('first day of this month');
if ($expires < $now) {
return false;
} else {
return true;
}
}
}
// pure php no closing tag
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