/**
*
*/
public function before_process()
{
global $messageStack;
$sagepay_return_data = SagepayUtil::decodeAndDecrypt($_GET['crypt'], MODULE_PAYMENT_SAGEPAY_ZC_FORM_PASSWORD);
$this->errorLog(array(array('title' => 'Response Data', 'content' => $sagepay_return_data)));
$this->sagepayResponse = SagepayUtil::getResponseTokens($sagepay_return_data);
$status = $this->sagepayResponse['Status'];
if (in_array($status, array('OK', 'REGISTERED', 'AUTHENTICATED'))) {
return;
}
$error_message = $this->getResponseErrorMessage($this->sagepayResponse['Status']);
$payment_error_return = 'ERROR ' . sprintf($error_message, $this->sagepayResponse['StatusDetail']);
$this->errorLog(array(array('title' => 'Response Values', 'content' => implode("\n", $this->sagepayResponse))));
$messageStack->add_session('checkout_payment', $payment_error_return, 'error');
zen_redirect(zen_href_link(FILENAME_CHECKOUT_PAYMENT, '', 'SSL', true, false));
}
