/**
* Post to PayPal
*
* Makes an API call using an NVP String and an Endpoint. Based on code available here: https://www.x.com/blogs/Nate/2011/01/07/digital-goods-with-express-checkout-in-php
*
* @param action, string, required. The API operation to be performed, eg. GetExpressCheckoutDetails. The action is abstracted from you (the developer) by the appropriate helper function eg. GetExpressCheckoutDetails via get_checkout_details()
*/
protected function call_paypal($action, $profile_id = '', $status = '', $args = array())
{
// Use the one function for all PayPal API operations
$api_parameters = $this->get_payment_details_url($action, $profile_id, $status, $args);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, PayPal_Digital_Goods_Configuration::endpoint());
curl_setopt($ch, CURLOPT_VERBOSE, 1);
// Make sure we use TLS as PayPal no longer supports SSLv3: https://ppmts.custhelp.com/app/answers/detail/a_id/1191/session/L2F2LzEvdGltZS8xNDE2MzUyMTgwL3NpZC8tVzFLaU03bQ%3D%3D
curl_setopt($ch, CURLOPT_SSLVERSION, 1);
// Turn off server and peer verification
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
// Set the API parameters for this transaction
curl_setopt($ch, CURLOPT_POSTFIELDS, $api_parameters);
// Request response from PayPal
$response = curl_exec($ch);
// If no response was received from PayPal there is no point parsing the response
if (!$response) {
throw new Exception($action . ' failed: ' . curl_error($ch) . '(' . curl_errno($ch) . ')');
}
curl_close($ch);
// An associative array is more usable than a parameter string
parse_str($response, $parsed_response);
if (0 == sizeof($parsed_response) || !array_key_exists('ACK', $parsed_response)) {
throw new Exception("Invalid HTTP Response for POST request({$api_parameters}) to " . PayPal_Digital_Goods_Configuration::endpoint());
}
if ($parsed_response['ACK'] == 'Failure') {
throw new Exception("Calling PayPal with action {$action} has Failed: " . $parsed_response['L_LONGMESSAGE0'], $parsed_response['L_ERRORCODE0']);
}
return $parsed_response;
}
/**
* Post to PayPal
*
* Makes an API call using an NVP String and an Endpoint. Based on code available here: https://www.x.com/blogs/Nate/2011/01/07/digital-goods-with-express-checkout-in-php
*
* @param action, string, required. The API operation to be performed, eg. GetExpressCheckoutDetails. The action is abstracted from you (the developer) by the appropriate helper function eg. GetExpressCheckoutDetails via get_checkout_details()
*/
protected function call_paypal($action, $profile_id = '', $status = '', $args = array())
{
// Use the one function for all PayPal API operations
$api_parameters = $this->get_payment_details_url($action, $profile_id, $status, $args);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, PayPal_Digital_Goods_Configuration::endpoint());
curl_setopt($ch, CURLOPT_VERBOSE, 1);
// Turn off server and peer verification
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
// Set the API parameters for this transaction
curl_setopt($ch, CURLOPT_POSTFIELDS, $api_parameters);
// Request response from PayPal
$response = curl_exec($ch);
// If no response was received from PayPal there is no point parsing the response
if (!$response) {
exit($action . ' failed: ' . curl_error($ch) . '(' . curl_errno($ch) . ')');
}
curl_close($ch);
// An associative array is more usable than a parameter string
parse_str($response, $parsed_response);
if (0 == sizeof($parsed_response) || !array_key_exists('ACK', $parsed_response)) {
exit("Invalid HTTP Response for POST request({$api_parameters}) to " . PayPal_Digital_Goods_Configuration::endpoint());
}
if ($parsed_response['ACK'] == 'Failure') {
exit("Calling PayPal with action {$action} has Failed: " . $parsed_response['L_LONGMESSAGE0']);
}
return $parsed_response;
}
