/**
* Post back to PayPal to check whether this request is a valid one
*
* @param Zend_Http_Client_Adapter_Interface $httpAdapter
*/
protected function _postBack(Zend_Http_Client_Adapter_Interface $httpAdapter)
{
$postbackQuery = http_build_query($this->_request) . '&cmd=_notify-validate';
$postbackUrl = $this->_config->getPaypalUrl();
$this->_debugData['postback_to'] = $postbackUrl;
$httpAdapter->setConfig(array('verifypeer' => $this->_config->verifyPeer));
$httpAdapter->write(Zend_Http_Client::POST, $postbackUrl, '1.1', array('Connection: close'), $postbackQuery);
try {
$postbackResult = $httpAdapter->read();
} catch (Exception $e) {
$this->_debugData['http_error'] = array('error' => $e->getMessage(), 'code' => $e->getCode());
throw $e;
}
/*
* Handle errors on PayPal side.
*/
$responseCode = Zend_Http_Response::extractCode($postbackResult);
if (empty($postbackResult) || in_array($responseCode, array('500', '502', '503'))) {
if (empty($postbackResult)) {
$reason = 'Empty response.';
} else {
$reason = 'Response code: ' . $responseCode . '.';
}
$this->_debugData['exception'] = 'PayPal IPN postback failure. ' . $reason;
throw new Mage_Paypal_UnavailableException($reason);
}
$response = preg_split('/^\\r?$/m', $postbackResult, 2);
$response = trim($response[1]);
if ($response != 'VERIFIED') {
$this->_debugData['postback'] = $postbackQuery;
$this->_debugData['postback_result'] = $postbackResult;
throw new Exception('PayPal IPN postback failure. See ' . self::DEFAULT_LOG_FILE . ' for details.');
}
}
/**
* Post back to PayPal to check whether this request is a valid one
*
* @param Zend_Http_Client_Adapter_Interface $httpAdapter
*/
protected function _postBack(Zend_Http_Client_Adapter_Interface $httpAdapter)
{
$sReq = '';
foreach ($this->_request as $k => $v) {
$sReq .= '&' . $k . '=' . urlencode(stripslashes($v));
}
$sReq .= "&cmd=_notify-validate";
$sReq = substr($sReq, 1);
$this->_debugData['postback'] = $sReq;
$this->_debugData['postback_to'] = $this->_config->getPaypalUrl();
$httpAdapter->write(Zend_Http_Client::POST, $this->_config->getPaypalUrl(), '1.1', array(), $sReq);
try {
$response = $httpAdapter->read();
} catch (Exception $e) {
$this->_debugData['http_error'] = array('error' => $e->getMessage(), 'code' => $e->getCode());
throw $e;
}
$this->_debugData['postback_result'] = $response;
$response = preg_split('/^\\r?$/m', $response, 2);
$response = trim($response[1]);
if ($response != 'VERIFIED') {
throw new Exception('PayPal IPN postback failure. See ' . self::DEFAULT_LOG_FILE . ' for details.');
}
unset($this->_debugData['postback'], $this->_debugData['postback_result']);
}
/**
* Post back to PayPal to check whether this request is a valid one
*
* @param Zend_Http_Client_Adapter_Interface $httpAdapter
*/
protected function _postBack(Zend_Http_Client_Adapter_Interface $httpAdapter)
{
$postbackQuery = http_build_query($this->_request) . '&cmd=_notify-validate';
$postbackUrl = $this->_config->getPaypalUrl();
$this->_debugData['postback_to'] = $postbackUrl;
$httpAdapter->write(Zend_Http_Client::POST, $postbackUrl, '1.1', array(), $postbackQuery);
try {
$postbackResult = $httpAdapter->read();
} catch (Exception $e) {
$this->_debugData['http_error'] = array('error' => $e->getMessage(), 'code' => $e->getCode());
throw $e;
}
$response = preg_split('/^\\r?$/m', $postbackResult, 2);
$response = trim($response[1]);
if ($response != 'VERIFIED') {
$this->_debugData['postback'] = $postbackQuery;
$this->_debugData['postback_result'] = $postbackResult;
throw new Exception('PayPal IPN postback failure. See ' . self::DEFAULT_LOG_FILE . ' for details.');
}
}
/**
* Get ipn data, send verification to PayPal, run corresponding handler
*/
public function processIpnRequest()
{
if (!$this->_ipnFormData) {
return;
}
// debug requested
if ($this->_config->debugFlag) {
Mage::getModel('paypal/api_debug')->setApiEndpoint($this->_config->getPaypalUrl())->setRequestBody(var_export($this->_ipnFormData, 1))->save();
}
$sReq = '';
$sReqDebug = '';
foreach ($this->_ipnFormData as $k => $v) {
$sReq .= '&' . $k . '=' . urlencode(stripslashes($v));
$sReqDebug .= '&' . $k . '=';
}
// append ipn command
$sReq .= "&cmd=_notify-validate";
$sReq = substr($sReq, 1);
$http = new Varien_Http_Adapter_Curl();
$http->write(Zend_Http_Client::POST, $this->_config->getPaypalUrl(), '1.1', array(), $sReq);
$response = $http->read();
// debug postback request & response
if ($this->_config->debugFlag) {
Mage::getModel('paypal/api_debug')->setApiEndpoint($this->_config->getPaypalUrl())->setRequestBody($sReq)->setResponseBody($response)->save();
}
if ($error = $http->getError()) {
$this->_notifyAdmin(Mage::helper('paypal')->__('PayPal IPN postback HTTP error: %s', $error));
return;
}
$response = preg_split('/^\\r?$/m', $response, 2);
$response = trim($response[1]);
if ($response == 'VERIFIED') {
$this->processIpnVerified();
} else {
// TODO: possible PCI compliance issue - the $sReq may contain data that is supposed to be encrypted
$this->_notifyAdmin(Mage::helper('paypal')->__('PayPal IPN postback Validation error: %s', $sReq));
}
}
