/**
* Payment gateway postback: make sure everything checks out and complete transaction
*
* @return void
*/
public function postbackTask()
{
$test = false;
// TESTING ***********************
if ($test) {
$postBackTransactionId = 331;
}
$params = Component::params(Request::getVar('option'));
if (empty($_POST) && !$test) {
throw new Exception(Lang::txt('Page Not Found'), 404);
}
// Initialize logger
$logger = new CartMessenger('Payment Postback');
// Get payment provider
if (!$test) {
$paymentGatewayProivder = $params->get('paymentProvider');
include_once JPATH_COMPONENT . DS . 'lib' . DS . 'payment' . DS . 'PaymentDispatcher.php';
$paymentDispatcher = new PaymentDispatcher($paymentGatewayProivder);
$pay = $paymentDispatcher->getPaymentProvider();
// Extract the transaction id from postback information
$postBackTransactionId = $pay->setPostBack($_POST);
if (!$postBackTransactionId) {
// Transaction id couldn't be extracted
$error = 'Post back did not have the valid transaction ID ';
$logger->setMessage($error);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::ERROR);
return false;
}
} else {
include_once JPATH_COMPONENT . DS . 'lib' . DS . 'payment' . DS . 'PaymentDispatcher.php';
$paymentDispatcher = new PaymentDispatcher('DUMMY AUTO PAYMENT');
$pay = $paymentDispatcher->getPaymentProvider();
}
// Get transaction info
$tInfo = CartModelCart::getTransactionFacts($postBackTransactionId);
//print_r($tInfo); die;
// Check if it exists
if (!$tInfo) {
// Transaction doesn't exist, log error
$error = 'Incoming payment for the transaction that does not exist: ' . $postBackTransactionId;
$logger->setMessage($error);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::ERROR);
return false;
}
// Check if the transaction can be processed (it can only be processed if the transaction is awaiting payment)
if ($tInfo->info->tStatus != 'awaiting payment') {
// Transaction cannot be processed, log error
$error = 'Transaction cannot be processed: ' . $postBackTransactionId . '. Current transaction status is "' . $tInfo->info->tStatus . '"';
$logger->setMessage($error);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::ERROR);
return false;
}
// Get the action. Post back will normally be triggered on payment success, but can also be the cancel post back
$postBackAction = $pay->getPostBackAction();
if ($postBackAction == 'payment' || $test) {
// verify payment
if (!$test && !$pay->verifyPayment($tInfo)) {
// Payment has not been verified, get verification error
$error = $pay->getError()->msg;
$error .= ' Transaction ID: ' . $postBackTransactionId;
// Log error
$logger->setMessage($error);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::ERROR);
// Handle error
CartModelCart::handleTransactionError($postBackTransactionId, $error);
return false;
}
// No error
$message = 'Transaction completed. ';
$message .= 'Transaction ID: ' . $postBackTransactionId;
// Log info
if (!$test) {
$logger->setMessage($message);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::INFO);
}
// Finalize order -- whatever needs to be done
$this->completeOrder($tInfo);
} elseif ($postBackAction == 'cancel') {
// Cancel transaction
$message = 'Transaction cancelled. ';
$message .= 'Transaction ID: ' . $postBackTransactionId;
// Log info
if (!$test) {
$logger->setMessage($message);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::INFO);
}
// Release the transaction
CartModelCart::releaseTransaction($postBackTransactionId);
} else {
// No supported action, log error
$error = 'Post back action is invalid: ' . $postBackAction;
$logger->setMessage($error);
$logger->setPostback($_POST);
$logger->log(LoggingLevel::ERROR);
return false;
}
}
/**
* Confirm step of the checkout. Should be a pass-through page for JS-enabled browsers, requires a form submission to the payment gateway
*
* @return void
*/
public function confirmTask()
{
require_once PATH_CORE . DS . 'components' . DS . 'com_cart' . DS . 'models' . DS . 'CurrentCart.php';
$cart = new CartModelCurrentCart();
$transaction = $cart->liftTransaction();
if (!$transaction) {
$cart->redirect('home');
}
// Get security token
$transaction->token = $cart->getToken();
// Check if there are any steps missing. Redirect if needed
$nextStep = $cart->getNextCheckoutStep();
if ($nextStep != 'summary') {
$cart->redirect($nextStep);
}
// Final step here before payment
CartModelCart::updateTransactionStatus('awaiting payment', $transaction->info->tId);
// Generate payment code
$params = Component::params(Request::getVar('option'));
$paymentGatewayProivder = $params->get('paymentProvider');
include_once JPATH_COMPONENT . DS . 'lib' . DS . 'payment' . DS . 'PaymentDispatcher.php';
$paymentDispatcher = new PaymentDispatcher($paymentGatewayProivder);
$pay = $paymentDispatcher->getPaymentProvider();
$pay->setTransactionDetails($transaction);
$error = false;
try {
$paymentCode = $pay->getPaymentCode();
$this->view->paymentCode = $paymentCode;
} catch (Exception $e) {
$error = $e->getMessage();
}
if (!empty($error)) {
$this->view->setError($error);
}
$this->view->display();
}
