/**
* This method processes transaction data that comes from PayPal instant notifier.
*
* @param string $context
* @param Joomla\Registry\Registry $params The parameters of the component
*
* @return null|object
*/
public function onPaymenNotify($context, &$params)
{
if (strcmp("com_virtualcurrency.notify.paypal", $context) != 0) {
return null;
}
$app = JFactory::getApplication();
/** @var $app JApplicationSite */
if ($app->isAdmin()) {
return null;
}
$doc = JFactory::getDocument();
/** @var $doc JDocumentRaw */
// Check document type
$docType = $doc->getType();
if (strcmp("raw", $docType) != 0) {
return null;
}
// Validate request method
$requestMethod = $app->input->getMethod();
if (strcmp("POST", $requestMethod) != 0) {
$this->log->add(JText::_($this->textPrefix . "_ERROR_INVALID_REQUEST_METHOD"), $this->debugType, JText::sprintf($this->textPrefix . "_ERROR_INVALID_TRANSACTION_REQUEST_METHOD", $requestMethod));
return null;
}
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_RESPONSE"), $this->debugType, $_POST) : null;
// Decode custom data
$custom = JArrayHelper::getValue($_POST, "custom");
$custom = json_decode(base64_decode($custom), true);
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_CUSTOM"), $this->debugType, $custom) : null;
// Verify gateway. Is it PayPal?
if (!$this->isPayPalGateway($custom)) {
$this->log->add(JText::_($this->textPrefix . "_ERROR_INVALID_PAYMENT_GATEWAY"), $this->debugType, array("custom" => $custom, "_POST" => $_POST));
return null;
}
// Get PayPal URL
$sandbox = $this->params->get('paypal_sandbox', 0);
if (!$sandbox) {
$url = JString::trim($this->params->get('paypal_url', "https://www.paypal.com/cgi-bin/webscr"));
} else {
$url = JString::trim($this->params->get('paypal_sandbox_url', "https://www.sandbox.paypal.com/cgi-bin/webscr"));
}
jimport("itprism.payment.paypal.ipn");
$paypalIpn = new ITPrismPayPalIpn($url, $_POST);
$loadCertificate = (bool) $this->params->get("paypal_load_certificate", 0);
$paypalIpn->verify($loadCertificate);
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_VERIFY_OBJECT"), $this->debugType, $paypalIpn) : null;
// Prepare the array that will be returned by this method
$result = array("currency" => null, "transaction" => null, "payment_service" => "PayPal");
if ($paypalIpn->isVerified()) {
// Get currency
jimport("virtualcurrency.realcurrency");
$realCurrencyId = $params->get("payments_currency_id");
$realCurrency = VirtualCurrencyRealCurrency::getInstance(JFactory::getDbo(), $realCurrencyId);
// Get intention data
$paymentId = JArrayHelper::getValue($custom, "payment_id", 0, "int");
jimport("virtualcurrency.payment.session");
$paymentSession = new VirtualCurrencyPaymentSession(JFactory::getDbo());
$paymentSession->load($paymentId);
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_PAYMENT_SESSION"), $this->debugType, $paymentSession->getProperties()) : null;
// Validate transaction data
$validData = $this->validateData($_POST, $realCurrency->getAbbr(), $paymentSession, $params);
if (is_null($validData)) {
return $result;
}
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_VALID_DATA"), $this->debugType, $validData) : null;
// Get project.
jimport("virtualcurrency.currency");
$currencyId = JArrayHelper::getValue($validData, "currency_id");
$currency = VirtualCurrencyCurrency::getInstance(JFactory::getDbo(), $currencyId);
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_CURRENCY_OBJECT"), $this->debugType, $currency->getProperties()) : null;
// Check for valid project
if (!$currency->getId()) {
// Log data in the database
$this->log->add(JText::_($this->textPrefix . "_ERROR_INVALID_CURRENCY"), $this->debugType, $validData);
return $result;
}
// Save transaction data.
// If it is not completed, return empty results.
// If it is complete, continue with process transaction data
if (!$this->storeTransaction($validData, $currency)) {
return $result;
}
// Prepare the data that will be returned
$result["transaction"] = JArrayHelper::toObject($validData);
// Generate object of data based on the project properties
$properties = $currency->getProperties();
$result["currency"] = JArrayHelper::toObject($properties);
// DEBUG DATA
JDEBUG ? $this->log->add(JText::_($this->textPrefix . "_DEBUG_RESULT_DATA"), $this->debugType, $result) : null;
// Remove intention
$txnStatus = isset($result["transaction"]->txn_status) ? $result["transaction"]->txn_status : null;
$this->removePaymentSession($paymentSession, $txnStatus);
unset($paymentSession);
} else {
// Log error
$this->log->add(JText::_($this->textPrefix . "_ERROR_INVALID_TRANSACTION_DATA"), $this->debugType, array("error message" => $paypalIpn->getError(), "paypalVerify" => $paypalIpn, "_POST" => $_POST));
}
return $result;
}
