Hi Lam
Following is code snippet which handles the Payment status and Payment Gateway's response and redirect to Completed Action.
[ValidateInput(false)]
public ActionResult PDTHandler(FormCollection form)
{
_logger.Error("1");
string tx = _webHelper.QueryString<string>("tx");
_logger.Error("2");
Dictionary<string, string> values;
string TranInqResponse, ResPaymentId, ResResult, ResErrorText, ResPosdate, ResTranId, ResAuth, ResAVR, ResAmount, ResErrorNo, ResTrackID, ResRef, okk, Resudf1, Resudf2, Resudf3, Resudf4, Resudf5;
var processor = _paymentService.LoadPaymentMethodBySystemName("Payments.HDFC") as HDFCPaymentProcessor;
if (processor == null ||
!processor.IsPaymentMethodActive(_paymentSettings) || !processor.PluginDescriptor.Installed)
throw new NopException("HDFC module cannot be loaded");
string lg = "LG " + Request["ErrorText"] + " " + Request["paymentid"];
_logger.Error(lg);
ResErrorText = Request["ErrorText"]; //Error Text/message
_logger.Error("ErrorText" + Request["ErrorText"]);
ResPaymentId = Request["paymentid"];
_logger.Error("paymentid" + Request["paymentid"]);
//Payment Id
ResTrackID = Request["trackid"]; //Merchant Track ID
_logger.Error("trackid" + Request["trackid"]);
ResErrorNo = Request["Error"]; //Error Number
_logger.Error("Error" + Request["Error"]);
//To collect transaction result
ResResult = Request["result"]; //Transaction Result
_logger.Error("result" + Request["result"]);
ResPosdate = Request["postdate"]; //Postdate
_logger.Error("postdate" + Request["postdate"]);
//To collect Payment Gateway Transaction ID, this value will be used in dual verification request
ResTranId = Request["tranid"]; //Transaction ID
_logger.Error("tranid" + Request["tranid"]);
ResAuth = Request["auth"]; //Auth Code
_logger.Error("auth" + Request["auth"]);
ResAVR = Request["avr"]; //TRANSACTION avr
_logger.Error("avr" + Request["avr"]);
ResRef = Request["ref"]; //Reference Number also called Seq Number
_logger.Error("ref" + Request["ref"]);
//To collect amount from response
ResAmount = Request["amt"]; //Transaction Amount
_logger.Error("amt" + Request["amt"]);
Resudf1 = Request["udf1"]; //order guid //UDF1
_logger.Error("udf1" + Request["udf1"]);
Resudf2 = Request["udf2"]; //UDF2
_logger.Error("udf2" + Request["udf2"]);
Resudf3 = Request["udf3"]; //UDF3
Resudf4 = Request["udf4"]; //UDF4
Resudf5 = Request["udf5"]; //UDF5
//if (processor.GetPDTDetails(tx, out values, out response))
_logger.Error("Before ResErrorNo" + ResErrorNo);
if (ResErrorNo == null)
{
string strhashstring = "";//Declaration of Hashing String
string strHashTraportalID = "9001081";
_logger.Error("into ResErrorNo");
strhashstring = strHashTraportalID.Trim();//Padding Tranportal ID Value
/*Below code creates the Hashing String also it will check NULL and Blank parmeters and exclude from the hashing string */
if (ResTrackID != null && ResTrackID.Trim() != "")
strhashstring = strhashstring + ResTrackID.Trim();//Padding TrackID Value
if (ResAmount != null && ResAmount.Trim() != "")
strhashstring = strhashstring + ResAmount.Trim();//Padding Amount Value
if (ResResult != null && ResResult.Trim() != "")
strhashstring = strhashstring + ResResult.Trim();//Padding Result Value
if (ResPaymentId != null && ResPaymentId.Trim() != "")
strhashstring = strhashstring + ResPaymentId.Trim();//Padding PaymentId Value
if (ResRef != null && ResRef.Trim() != "")
strhashstring = strhashstring + ResRef.Trim();//Padding Ref Value
if (ResAuth != null && ResAuth.Trim() != "")
strhashstring = strhashstring + ResAuth.Trim();//Padding Auth Value
if (ResTranId != null && ResTranId.Trim() != "")
strhashstring = strhashstring + ResTranId.Trim();//Padding TranId Value
_logger.Error("into strhashstring" + strhashstring);
string orderNumber = string.Empty;
if (Resudf1 != null && Resudf1.Trim() != "")
orderNumber = Resudf1.Trim();//Padding TranId Value
_logger.Error("into GetSHA256" + strhashstring);
string hashvalue = GetSHA256(strhashstring.Trim());
_logger.Error("orderNumber" + orderNumber);
_logger.Error("into hashvalue1" + hashvalue);
Guid orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch (Exception epp)
{
_logger.Error("into hashvalue" + epp.Message + "\n\r" + orderNumber);
}
if (hashvalue == Resudf5)
{
_logger.Error("into hashvalue == Resudf5" + hashvalue);
Order order = _orderService.GetOrderByGuid(orderNumberGuid);
if (order != null)
{
var sb = new StringBuilder();
sb.AppendLine("HDFC PDT:");
sb.AppendLine("total: " + ResAmount);
sb.AppendLine("Transaction status: " + ResResult);
sb.AppendLine("Pending reason: " + ResErrorText);
sb.AppendLine("txn_id: " + ResTrackID); //order id
sb.AppendLine("payment_type: " + "Hdfc ");
sb.AppendLine("PaymentID: " + ResPaymentId);
sb.AppendLine("Tran Reference No: " + ResRef);
sb.AppendLine("invoice: " + ResTrackID);
sb.AppendLine("avr: " + ResAVR);
sb.AppendLine("Auth Code: " + ResAuth);
sb.AppendLine("Transaction ID: " + ResTranId);
_logger.Error(sb.ToString());
//order note
order.OrderNotes.Add(new OrderNote()
{
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
_orderService.UpdateOrder(order);
//load settings for a chosen store scope
var storeScope = this.GetActiveStoreScopeConfiguration(_storeService, _workContext);
var hdfcPaymentSettings = _settingService.LoadSetting<HdfcPaymentSettings>(storeScope);
//validate order total
if (!Math.Round(decimal.Parse(ResAmount), 2).Equals(Math.Round(order.OrderTotal, 2)))
{
string errorStr = string.Format("HDFC CC. Returned order total {0} doesn't equal order total {1}", ResAmount, order.OrderTotal);
_logger.Error(errorStr);
return RedirectToAction("Index", "Home", new { area = "" });
}
//mark order as paid
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
order.AuthorizationTransactionId = ResTrackID;
_orderService.UpdateOrder(order);
_orderProcessingService.MarkOrderAsPaid(order);
}
}
_logger.Error("into Checkout");
return RedirectToAction("Completed", "Checkout", new { orderId = order.Id});
// return RedirectToRoute("Orderdetails", new { orderId = order.Id });
}
else
{
string errorStr = string.Format("HDFC CC. Hashing Response Missmatch");
_logger.Error(errorStr);
return RedirectToAction("Index", "Home", new { area = "" });
}
}
else
{
_logger.Error("elseee");
Guid orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(ResTrackID);
}
catch { }
Order order = _orderService.GetOrderByGuid(orderNumberGuid);
if (order != null)
{
var sb = new StringBuilder();
sb.AppendLine("HDFC PDT:");
sb.AppendLine("Transaction status: " + ResResult);
sb.AppendLine("HDFC Payment Error: " + ResErrorNo);
sb.AppendLine("Pending reason: " + ResErrorText);
sb.AppendLine("txn_id: " + ResTrackID); //order id
sb.AppendLine("payment_type: " + "Hdfc ");
sb.AppendLine("PaymentID: " + ResPaymentId);
sb.AppendLine("Tran Reference No: " + ResRef);
sb.AppendLine("invoice: " + ResTrackID);
sb.AppendLine("payment_fee: " + ResAmount);
sb.AppendLine("Transaction ID: " + ResTranId);
//order note
order.OrderNotes.Add(new OrderNote()
{
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
_orderService.UpdateOrder(order);
return RedirectToRoute("OrderDetails", new { orderId = order.Id });
}
// return RedirectToAction("Index", "Home", new { area = "" });
return RedirectToRoute("OrderDetails", new { orderId = order.Id });
}
}
