public void VerifyGeneratedChecksum()
{
// Arrange
var payGateReturn = new PayGateReturn();
payGateReturn.SetPassPhrase("secret");
Dictionary <string, string> formCollection = new Dictionary <string, string>();
formCollection.Add("PAYGATE_ID", "10011072130");
formCollection.Add("PAY_REQUEST_ID", "26F1EE9D-FB68-D6C2-5D36-ADA8C5F88BC9");
formCollection.Add("TRANSACTION_STATUS", "1");
formCollection.Add("REFERENCE", "PayGate Test");
payGateReturn.FromFormCollection(formCollection);
// Act
var checksum = payGateReturn.GetCalculatedChecksum(formCollection["PAYGATE_ID"], formCollection["PAY_REQUEST_ID"], formCollection["REFERENCE"]);
// Assert
Assert.AreEqual("2fae4c5cde9ac8ed70f769c3ff843d72", checksum);
}
public ActionResult Return([ModelBinder(typeof(PayGateReturnModelBinder))] PayGateReturn payGateReturnViewModel)
{
payGateReturnViewModel.SetPassPhrase(payGateSettings.PayGateKey);
var calculatedChecksum = payGateReturnViewModel.GetCalculatedChecksum(payGateSettings.PayGateID, Session["PAY_REQUEST_ID"].ToString(), Session["REFERENCE"].ToString());
if (calculatedChecksum != payGateReturnViewModel.CHECKSUM)
{
// TODO: Add proper error handling. Error model?
return(View("Error"));
}
string message = string.Empty;
switch (payGateReturnViewModel.TRANSACTION_STATUS)
{
case TransactionStatus.NotDone:
message = "Transaction not completed. Please try again.";
break;
case TransactionStatus.Approved:
return(View("Success"));
case TransactionStatus.Declined:
message = "Transaction declined. Please try again.";
break;
case TransactionStatus.Cancelled:
message = "Transaction has been cancelled. Please try again.";
break;
case TransactionStatus.UserCancelled:
message = "Transaction has been cancelled by the user.";
break;
}
ViewBag.Message = message;
return(View("Failure"));
}