credit card source code

[roey_david]

i am trying to finder inside the credit card model "includes\modules\payment\cc.php"

the code how is doing the credit card confirm'a

 

a) is it doing the credit card confirm'a against the "credit card company " internet site

B) is this the code

 

function javascript_validation() {

$js = ' if (payment_value == "' . $this->code . '") {' . "\n" .

' var cc_owner = document.checkout_payment.cc_owner.value;' . "\n" .

' var cc_number = document.checkout_payment.cc_number.value;' . "\n" .

' if (cc_owner == "" || cc_owner.length < ' . CC_OWNER_MIN_LENGTH . ') {' . "\n" .

' error_message = error_message + "' . MODULE_PAYMENT_CC_TEXT_JS_CC_OWNER . '";' . "\n" .

' error = 1;' . "\n" .

' }' . "\n" .

' if (cc_number == "" || cc_number.length < ' . CC_NUMBER_MIN_LENGTH . ') {' . "\n" .

' error_message = error_message + "' . MODULE_PAYMENT_CC_TEXT_JS_CC_NUMBER . '";' . "\n" .

' error = 1;' . "\n" .

' }' . "\n" .

' }' . "\n";

 

return $js;

}

[Guest]

cc.php does not connect to any payment processor, and therefore leaves it up to the store owner to process the card externally. cc.php is essentially an enhanced credit card info capture tool.

 

There are other payment processing modules to authorize the credit card using various payment gateways.

 

-jared

[roey_david]

cc.php does not connect to any payment processor, and therefore leaves it up to the store owner to process the card externally. cc.php is essentially an enhanced credit card info capture tool.

 

There are other payment processing modules to authorize the credit card using various payment gateways.

 

-jared

 

 

wall ...

if you right . and i am tring to enter a my cradit card number and i am change 1 digit or i am change the expiry date ,the oscommerce discover thet this credit card do not exist.

 

a) where is the code in the oscommerce how do the check if it is a valid number.

[Guest]

The code is in cc_validation.php .

 

-jared

[roey_david]

The code is in cc_validation.php .

 

-jared

 

yes no i see "The function" , it uses regular expression .

it as regular expression for Visa ,

regular expression for Master Card,

regular expression for American Express,

regular expression for Diners Club,

regular expression for Discover,

regular expression for JCB and 1 for Australian BankCard.

 

and some simple checking for date mm/yy

 

here is the code

 

function validate($number, $expiry_m, $expiry_y) {

$this->cc_number = ereg_replace('[^0-9]', '', $number);

 

if (ereg('^4[0-9]{12}([0-9]{3})?$', $this->cc_number)) {

$this->cc_type = 'Visa';

} elseif (ereg('^5[1-5][0-9]{14}$', $this->cc_number)) {

$this->cc_type = 'Master Card';

} elseif (ereg('^3[47][0-9]{13}$', $this->cc_number)) {

$this->cc_type = 'American Express';

} elseif (ereg('^3(0[0-5]|[68][0-9])[0-9]{11}$', $this->cc_number)) {

$this->cc_type = 'Diners Club';

} elseif (ereg('^6011[0-9]{12}$', $this->cc_number)) {

$this->cc_type = 'Discover';

} elseif (ereg('^(3[0-9]{4}|2131|1800)[0-9]{11}$', $this->cc_number)) {

$this->cc_type = 'JCB';

} elseif (ereg('^5610[0-9]{12}$', $this->cc_number)) {

$this->cc_type = 'Australian BankCard';

} else {

return -1;

}

 

if (is_numeric($expiry_m) && ($expiry_m > 0) && ($expiry_m < 13)) {

$this->cc_expiry_month = $expiry_m;

} else {

return -2;

}

 

$current_year = date('Y');

$expiry_y = substr($current_year, 0, 2) . $expiry_y;

if (is_numeric($expiry_y) && ($expiry_y >= $current_year) && ($expiry_y <= ($current_year + 10))) {

$this->cc_expiry_year = $expiry_y;

} else {

return -3;

}

 

if ($expiry_y == $current_year) {

if ($expiry_m < date('n')) {

return -4;

}

}

 

return $this->is_valid();

}

 

function is_valid() {

$cardNumber = strrev($this->cc_number);

$numSum = 0;

 

for ($i=0; $i<strlen($cardNumber); $i++) {

$currentNum = substr($cardNumber, $i, 1);

 

// Double every second digit

if ($i % 2 == 1) {

$currentNum *= 2;

}

 

// Add digits of 2-digit numbers together

if ($currentNum > 9) {

$firstNum = $currentNum % 10;

$secondNum = ($currentNum - $firstNum) / 10;

$currentNum = $firstNum + $secondNum;

}

 

$numSum += $currentNum;

}

 

// If the total has no remainder it's OK

return ($numSum % 10 == 0);

}