public IActionResult IPNHandler()
{
byte[] parameters;
using (var stream = new MemoryStream())
{
this.Request.Body.CopyTo(stream);
parameters = stream.ToArray();
}
var strRequest = Encoding.ASCII.GetString(parameters);
var processor = _paymentPluginManager.LoadPluginBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!_paymentPluginManager.IsPluginActive(processor) || !processor.PluginDescriptor.Installed)
{
throw new NopException("Paytm Standard module cannot be loaded");
}
if (processor.VerifyIpn(strRequest, out Dictionary <string, string> values))
{
#region values
var mc_gross = decimal.Zero;
try
{
mc_gross = decimal.Parse(values["mc_gross"], new CultureInfo("en-US"));
}
catch { }
values.TryGetValue("payer_status", out string payer_status);
values.TryGetValue("payment_status", out string payment_status);
values.TryGetValue("pending_reason", out string pending_reason);
values.TryGetValue("mc_currency", out string mc_currency);
values.TryGetValue("txn_id", out string txn_id);
values.TryGetValue("txn_type", out string txn_type);
values.TryGetValue("rp_invoice_id", out string rp_invoice_id);
values.TryGetValue("payment_type", out string payment_type);
values.TryGetValue("payer_id", out string payer_id);
values.TryGetValue("receiver_id", out string receiver_id);
values.TryGetValue("invoice", out string _);
values.TryGetValue("payment_fee", out string payment_fee);
#endregion
var sb = new StringBuilder();
sb.AppendLine("Paytm IPN:");
foreach (var kvp in values)
{
sb.AppendLine(kvp.Key + ": " + kvp.Value);
}
var newPaymentStatus = PaytmHelper.GetPaymentStatus(payment_status, pending_reason);
sb.AppendLine("New payment status: " + newPaymentStatus);
switch (txn_type)
{
case "recurring_payment_profile_created":
//do nothing here
break;
#region Recurring payment
case "recurring_payment":
{
var orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(rp_invoice_id);
}
catch
{
}
var initialOrder = _orderService.GetOrderByGuid(orderNumberGuid);
if (initialOrder != null)
{
var recurringPayments = _orderService.SearchRecurringPayments(initialOrderId: initialOrder.Id);
foreach (var rp in recurringPayments)
{
switch (newPaymentStatus)
{
case PaymentStatus.Authorized:
case PaymentStatus.Paid:
{
var recurringPaymentHistory = _orderService.GetRecurringPaymentHistory(rp);
if (!recurringPaymentHistory.Any())
{
_orderService.InsertRecurringPaymentHistory(new RecurringPaymentHistory
{
RecurringPaymentId = rp.Id,
OrderId = initialOrder.Id,
CreatedOnUtc = DateTime.UtcNow
});
}
else
{
//next payments
var processPaymentResult = new ProcessPaymentResult
{
NewPaymentStatus = newPaymentStatus
};
if (newPaymentStatus == PaymentStatus.Authorized)
{
processPaymentResult.AuthorizationTransactionId = txn_id;
}
else
{
processPaymentResult.CaptureTransactionId = txn_id;
}
_orderProcessingService.ProcessNextRecurringPayment(rp, processPaymentResult);
}
}
break;
case PaymentStatus.Voided:
//failed payment
var failedPaymentResult = new ProcessPaymentResult
{
Errors = new[] { $"Paytm IPN. Recurring payment is {payment_status} ." },
RecurringPaymentFailed = true
};
_orderProcessingService.ProcessNextRecurringPayment(rp, failedPaymentResult);
break;
}
}
//this.OrderService.InsertOrderNote(newOrder.OrderId, sb.ToString(), DateTime.UtcNow);
_logger.Information("Paytm IPN. Recurring info", new NopException(sb.ToString()));
}
else
{
_logger.Error("Paytm IPN. Order is not found", new NopException(sb.ToString()));
}
}
break;
case "recurring_payment_failed":
if (Guid.TryParse(rp_invoice_id, out Guid orderGuid))
{
var initialOrder = _orderService.GetOrderByGuid(orderGuid);
if (initialOrder != null)
{
var recurringPayment = _orderService.SearchRecurringPayments(initialOrderId: initialOrder.Id).FirstOrDefault();
//failed payment
if (recurringPayment != null)
{
_orderProcessingService.ProcessNextRecurringPayment(recurringPayment, new ProcessPaymentResult {
Errors = new[] { txn_type }, RecurringPaymentFailed = true
});
}
}
}
break;
#endregion
default:
#region Standard payment
{
values.TryGetValue("custom", out string orderNumber);
var orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch
{
}
var order = _orderService.GetOrderByGuid(orderNumberGuid);
if (order != null)
{
//order note
//order.OrderNotes.Add(new OrderNote
//{
// Note = sb.ToString(),
// DisplayToCustomer = false,
// CreatedOnUtc = DateTime.UtcNow
//});
//_orderService.UpdateOrder(order);
_orderService.InsertOrderNote(new OrderNote
{
OrderId = order.Id,
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
switch (newPaymentStatus)
{
case PaymentStatus.Pending:
{
}
break;
case PaymentStatus.Authorized:
{
//validate order total
if (Math.Round(mc_gross, 2).Equals(Math.Round(order.OrderTotal, 2)))
{
//valid
if (_orderProcessingService.CanMarkOrderAsAuthorized(order))
{
_orderProcessingService.MarkAsAuthorized(order);
}
}
else
{
//not valid
var errorStr =
$"Paytm IPN. Returned order total {mc_gross} doesn't equal order total {order.OrderTotal}. Order# {order.Id}.";
//log
_logger.Error(errorStr);
//order note
//order.OrderNotes.Add(new OrderNote
//{
// Note = errorStr,
// DisplayToCustomer = false,
// CreatedOnUtc = DateTime.UtcNow
//});
//_orderService.UpdateOrder(order);
_orderService.InsertOrderNote(new OrderNote
{
OrderId = order.Id,
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
}
}
break;
case PaymentStatus.Paid:
{
//validate order total
if (Math.Round(mc_gross, 2).Equals(Math.Round(order.OrderTotal, 2)))
{
//valid
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
order.AuthorizationTransactionId = txn_id;
_orderService.UpdateOrder(order);
_orderProcessingService.MarkOrderAsPaid(order);
}
}
else
{
//not valid
var errorStr =
$"Paytm IPN. Returned order total {mc_gross} doesn't equal order total {order.OrderTotal}. Order# {order.Id}.";
//log
_logger.Error(errorStr);
//order note
//order.OrderNotes.Add(new OrderNote
//{
// Note = errorStr,
// DisplayToCustomer = false,
// CreatedOnUtc = DateTime.UtcNow
//});
//_orderService.UpdateOrder(order);
_orderService.InsertOrderNote(new OrderNote
{
OrderId = order.Id,
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
}
}
break;
case PaymentStatus.Refunded:
{
var totalToRefund = Math.Abs(mc_gross);
if (totalToRefund > 0 && Math.Round(totalToRefund, 2).Equals(Math.Round(order.OrderTotal, 2)))
{
//refund
if (_orderProcessingService.CanRefundOffline(order))
{
_orderProcessingService.RefundOffline(order);
}
}
else
{
//partial refund
if (_orderProcessingService.CanPartiallyRefundOffline(order, totalToRefund))
{
_orderProcessingService.PartiallyRefundOffline(order, totalToRefund);
}
}
}
break;
case PaymentStatus.Voided:
{
if (_orderProcessingService.CanVoidOffline(order))
{
_orderProcessingService.VoidOffline(order);
}
}
break;
default:
break;
}
}
else
{
_logger.Error("Paytm IPN. Order is not found", new NopException(sb.ToString()));
}
}
#endregion
break;
}
}
else
{
_logger.Error("Paytm IPN failed.", new NopException(strRequest));
}
//nothing should be rendered to visitor
return(Content(""));
}
public async Task <IActionResult> IPNHandler()
{
await using var stream = new MemoryStream();
await Request.Body.CopyToAsync(stream);
var strRequest = Encoding.ASCII.GetString(stream.ToArray());
if (await _paymentPluginManager.LoadPluginBySystemNameAsync("Payments.Paytm") is not PaytmPaymentProcessor processor || !_paymentPluginManager.IsPluginActive(processor))
{
throw new NopException("Paytm module cannot be loaded");
}
var(result, values) = await processor.VerifyIpnAsync(strRequest);
if (!result)
{
await _logger.ErrorAsync("Paytm IPN failed.", new NopException(strRequest));
//nothing should be rendered to visitor
return(Ok());
}
var mcGross = decimal.Zero;
try
{
mcGross = decimal.Parse(values["mc_gross"], new CultureInfo("en-US"));
}
catch
{
// ignored
}
values.TryGetValue("payment_status", out var paymentStatus);
values.TryGetValue("pending_reason", out var pendingReason);
values.TryGetValue("txn_id", out var txnId);
values.TryGetValue("txn_type", out var txnType);
values.TryGetValue("rp_invoice_id", out var rpInvoiceId);
var sb = new StringBuilder();
sb.AppendLine("Paytm IPN:");
foreach (var kvp in values)
{
sb.AppendLine(kvp.Key + ": " + kvp.Value);
}
var newPaymentStatus = PaytmHelper.GetPaymentStatus(paymentStatus, pendingReason);
sb.AppendLine("New payment status: " + newPaymentStatus);
var ipnInfo = sb.ToString();
switch (txnType)
{
case "recurring_payment":
await ProcessRecurringPaymentAsync(rpInvoiceId, newPaymentStatus, txnId, ipnInfo);
break;
case "recurring_payment_failed":
if (Guid.TryParse(rpInvoiceId, out var orderGuid))
{
var order = await _orderService.GetOrderByGuidAsync(orderGuid);
if (order != null)
{
var recurringPayment = (await _orderService.SearchRecurringPaymentsAsync(initialOrderId: order.Id))
.FirstOrDefault();
//failed payment
if (recurringPayment != null)
{
await _orderProcessingService.ProcessNextRecurringPaymentAsync(recurringPayment,
new ProcessPaymentResult
{
Errors = new[] { txnType },
RecurringPaymentFailed = true
});
}
}
}
break;
default:
values.TryGetValue("custom", out var orderNumber);
await ProcessPaymentAsync(orderNumber, ipnInfo, newPaymentStatus, mcGross, txnId);
break;
}
//nothing should be rendered to visitor
return(Ok());
}
public ActionResult Return()
{
var processor = _paymentPluginManager.LoadPluginBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!_paymentPluginManager.IsPluginActive(processor) || !processor.PluginDescriptor.Installed)
{
throw new NopException("Paytm module cannot be loaded");
}
var myUtility = new PaytmHelper();
string orderId, amount, authDesc, resCode;
bool checkSumMatch = false;
//Assign following values to send it to verifychecksum function.
if (String.IsNullOrWhiteSpace(_paytmPaymentSettings.MerchantKey))
{
throw new NopException("Paytm key is not set");
}
string workingKey = _paytmPaymentSettings.MerchantKey;
string paytmChecksum = null;
Dictionary <string, string> parameters = new Dictionary <string, string>();
if (Request.Form.Keys.Count > 0)
{
foreach (string key in Request.Form.Keys)
{
if (Request.Form[key].Contains("|"))
{
parameters.Add(key.Trim(), "");
}
else
{
parameters.Add(key.Trim(), Request.Form[key]);
}
}
if (parameters.ContainsKey("CHECKSUMHASH"))
{
paytmChecksum = parameters["CHECKSUMHASH"];
parameters.Remove("CHECKSUMHASH");
}
if (!string.IsNullOrEmpty(paytmChecksum) && paytm.CheckSum.verifyCheckSum(workingKey, parameters, paytmChecksum))
{
checkSumMatch = true;
}
}
orderId = parameters["ORDERID"];
amount = parameters["TXNAMOUNT"];
resCode = parameters["RESPCODE"];
authDesc = parameters["STATUS"];
var order = _orderService.GetOrderById(Convert.ToInt32(orderId));
if (checkSumMatch == true)
{
if (resCode == "01" && authDesc == "TXN_SUCCESS")
{
if (TxnStatus(orderId, order.OrderTotal.ToString("0.00")))
{
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
_orderProcessingService.MarkOrderAsPaid(order);
}
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
else
{
return(Content("Amount Mismatch"));
}
}
else if (authDesc == "TXN_FAILURE")
{
_orderProcessingService.CancelOrder(order, false);
order.OrderStatus = OrderStatus.Cancelled;
_orderService.UpdateOrder(order);
return(RedirectToRoute("OrderDetails", new { orderId = order.Id }));
}
else
{
return(Content("Security Error. Illegal access detected"));
}
}
else if (string.IsNullOrEmpty(paytmChecksum))
{
return(Content("Please Contact Customer Care"));
}
else
{
return(Content("Security Error. Illegal access detected, Checksum failed"));
}
}
public IActionResult PDTHandler()
{
var tx = _webHelper.QueryString <string>("tx");
var processor = _paymentPluginManager.LoadPluginBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!_paymentPluginManager.IsPluginActive(processor) || !processor.PluginDescriptor.Installed)
{
throw new NopException("Paytm Standard module cannot be loaded");
}
if (processor.GetPdtDetails(tx, out Dictionary <string, string> values, out string response))
{
values.TryGetValue("custom", out string orderNumber);
var orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch { }
var order = _orderService.GetOrderByGuid(orderNumberGuid);
if (order != null)
{
var mc_gross = decimal.Zero;
try
{
mc_gross = decimal.Parse(values["mc_gross"], new CultureInfo("en-US"));
}
catch (Exception exc)
{
_logger.Error("Paytm PDT. Error getting mc_gross", exc);
}
values.TryGetValue("payer_status", out string payer_status);
values.TryGetValue("payment_status", out string payment_status);
values.TryGetValue("pending_reason", out string pending_reason);
values.TryGetValue("mc_currency", out string mc_currency);
values.TryGetValue("txn_id", out string txn_id);
values.TryGetValue("payment_type", out string payment_type);
values.TryGetValue("payer_id", out string payer_id);
values.TryGetValue("receiver_id", out string receiver_id);
values.TryGetValue("invoice", out string invoice);
values.TryGetValue("payment_fee", out string payment_fee);
var sb = new StringBuilder();
sb.AppendLine("Paytm PDT:");
sb.AppendLine("mc_gross: " + mc_gross);
sb.AppendLine("Payer status: " + payer_status);
sb.AppendLine("Payment status: " + payment_status);
sb.AppendLine("Pending reason: " + string.Empty);
sb.AppendLine("mc_currency: " + mc_currency);
sb.AppendLine("txn_id: " + txn_id);
sb.AppendLine("payment_type: " + payment_type);
sb.AppendLine("payer_id: " + payer_id);
sb.AppendLine("receiver_id: " + receiver_id);
sb.AppendLine("invoice: " + invoice);
sb.AppendLine("payment_fee: " + payment_fee);
var newPaymentStatus = PaytmHelper.GetPaymentStatus(payment_status, string.Empty);
sb.AppendLine("New payment status: " + newPaymentStatus);
//order note
_orderService.InsertOrderNote(new OrderNote
{
OrderId = order.Id,
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
//order.OrderNotes.Add(new OrderNote
//{
// Note = sb.ToString(),
// DisplayToCustomer = false,
// CreatedOnUtc = DateTime.UtcNow
//});
//_orderService.UpdateOrder(order);
//validate order total
var orderTotalSentToPaytm = _genericAttributeService.GetAttribute <decimal?>(order, PaytmHelper.OrderTotalSentToPaytm);
if (orderTotalSentToPaytm.HasValue && mc_gross != orderTotalSentToPaytm.Value)
{
var errorStr =
$"Paytm PDT. Returned order total {mc_gross} doesn't equal order total {order.OrderTotal}. Order# {order.Id}.";
//log
_logger.Error(errorStr);
//order note
//order.OrderNotes.Add(new OrderNote
//{
// Note = errorStr,
// DisplayToCustomer = false,
// CreatedOnUtc = DateTime.UtcNow
//});
//_orderService.UpdateOrder(order);
_orderService.InsertOrderNote(new OrderNote
{
OrderId = order.Id,
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
return(RedirectToAction("Index", "Home", new { area = "" }));
}
//clear attribute
if (orderTotalSentToPaytm.HasValue)
{
_genericAttributeService.SaveAttribute <decimal?>(order, PaytmHelper.OrderTotalSentToPaytm, null);
}
//mark order as paid
if (newPaymentStatus == PaymentStatus.Paid)
{
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
order.AuthorizationTransactionId = txn_id;
_orderService.UpdateOrder(order);
_orderProcessingService.MarkOrderAsPaid(order);
}
}
}
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
else
{
var orderNumber = string.Empty;
values.TryGetValue("custom", out orderNumber);
var orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch { }
var order = _orderService.GetOrderByGuid(orderNumberGuid);
if (order != null)
{
//order note
//order.OrderNotes.Add(new OrderNote
//{
// Note = "Paytm PDT failed. " + response,
// DisplayToCustomer = false,
// CreatedOnUtc = DateTime.UtcNow
//});
//_orderService.UpdateOrder(order);
_orderService.InsertOrderNote(new OrderNote
{
OrderId = order.Id,
Note = "Paytm PDT failed. " + response,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
}
return(RedirectToAction("Index", "Home", new { area = "" }));
}
}
public ActionResult ReturnOLD(FormCollection form)
{
var processor = _paymentService.LoadPaymentMethodBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!processor.IsPaymentMethodActive(_paymentSettings) || !processor.PluginDescriptor.Installed)
{
throw new NopException("Paytm module cannot be loaded");
}
var myUtility = new PaytmHelper();
string orderId, Amount, AuthDesc, ResCode;
bool checkSumMatch = false;
//Assign following values to send it to verifychecksum function.
if (String.IsNullOrWhiteSpace(_PaytmPaymentSettings.MerchantKey))
{
throw new NopException("Paytm key is not set");
}
string workingKey = _PaytmPaymentSettings.MerchantKey;
Dictionary <string, string> parameters = new Dictionary <string, string>();
if (Request.Form.AllKeys.Length > 0)
{
string paytmChecksum = "";
foreach (string key in Request.Form.Keys)
{
parameters.Add(key.Trim(), Request.Form[key].Trim());
}
if (parameters.ContainsKey("CHECKSUMHASH"))
{
paytmChecksum = parameters["CHECKSUMHASH"];
parameters.Remove("CHECKSUMHASH");
}
if (CheckSum.verifyCheckSum(workingKey, parameters, paytmChecksum))
{
checkSumMatch = true;
}
}
orderId = parameters["ORDERID"];
Amount = parameters["TXNAMOUNT"];
ResCode = parameters["RESPCODE"];
AuthDesc = parameters["STATUS"];
if (checkSumMatch == true)
{
if (ResCode == "01" && AuthDesc == "TXN_SUCCESS")
{
var order = _orderService.GetOrderById(Convert.ToInt32(orderId));
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
_orderProcessingService.MarkOrderAsPaid(order);
}
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
else if (AuthDesc == "TXN_FAILURE")
{
return(RedirectToRoute("ShoppingCart"));
}
else
{
return(Content("Security Error. Illegal access detected"));
}
}
else
{
return(Content("Security Error. Illegal access detected, Checksum failed"));
}
}
public ActionResult Return(FormCollection form)
{
var processor = _paymentService.LoadPaymentMethodBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!processor.IsPaymentMethodActive(_paymentSettings) || !processor.PluginDescriptor.Installed)
{
throw new NopException("Paytm module cannot be loaded");
}
var myUtility = new PaytmHelper();
string orderId, Amount, AuthDesc, ResCode;
bool checkSumMatch = false;
//Assign following values to send it to verifychecksum function.
if (String.IsNullOrWhiteSpace(_PaytmPaymentSettings.MerchantKey))
{
throw new NopException("Paytm key is not set");
}
string workingKey = _PaytmPaymentSettings.MerchantKey;
Dictionary <string, string> parameters = new Dictionary <string, string>();
if (Request.Form.AllKeys.Length > 0)
{
string paytmChecksum = "";
foreach (string key in Request.Form.Keys)
{
parameters.Add(key.Trim(), Request.Form[key].Trim());
}
if (parameters.ContainsKey("CHECKSUMHASH"))
{
paytmChecksum = parameters["CHECKSUMHASH"];
parameters.Remove("CHECKSUMHASH");
}
if (CheckSum.verifyCheckSum(workingKey, parameters, paytmChecksum))
{
checkSumMatch = true;
}
}
orderId = parameters["ORDERID"];
Amount = parameters["TXNAMOUNT"];
ResCode = parameters["RESPCODE"];
AuthDesc = parameters["STATUS"];
if (checkSumMatch == true)
{
var order = _orderService.GetOrderById(Convert.ToInt32(orderId));
if (ResCode == "01" && AuthDesc == "TXN_SUCCESS")
{
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
_orderProcessingService.MarkOrderAsPaid(order);
}
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
else if (AuthDesc == "TXN_FAILURE")
{
var p = new PayModel();
p.RespMsg = parameters["RESPMSG"].ToString();
return(View("~/Plugins/Payments.Paytm/Views/PaymentPaytm/Pay.cshtml", p));
//Response.Write("<script> $(document).ready(function(){ $(\"#submitButton\").on(\"click\",function() {alert('"+parameters["RESPMSG"].ToString()+"');});});<script>");
//alert('@TempData["alertMessage"]');
//return Response.Write(parameters["RESPMSG"].ToString() + "< /br>" + "<a href=\"/Home/Index\">Click here to continue..</a>");
//return red
//return RedirectToRoute("ShoppingCart");
//return Content(parameters["RESPMSG"].ToString() + " < /br>" + "Html.ActionLink(\"Click here to continue..\",\"Index\", \"Home\")");
//return RedirectToAction("Index", "Home", new { area = "" });
}
else
{
return(Content("Security Error. Illegal access detected"));
}
}
else
{
return(Content("Security Error. Illegal access detected, Checksum failed"));
}
}
public ActionResult Return(FormCollection form)
{
var processor = _paymentService.LoadPaymentMethodBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!processor.IsPaymentMethodActive(_paymentSettings) || !processor.PluginDescriptor.Installed)
throw new NopException("Paytm module cannot be loaded");
var myUtility = new PaytmHelper();
string orderId, Amount, AuthDesc, ResCode;
bool checkSumMatch = false;
//Assign following values to send it to verifychecksum function.
if (String.IsNullOrWhiteSpace(_PaytmPaymentSettings.MerchantKey))
throw new NopException("Paytm key is not set");
string workingKey = _PaytmPaymentSettings.MerchantKey;
Dictionary<string, string> parameters = new Dictionary<string, string>();
if (Request.Form.AllKeys.Length > 0)
{
string paytmChecksum="";
foreach (string key in Request.Form.Keys){
parameters.Add(key.Trim(), Request.Form[key].Trim());
}
if(parameters.ContainsKey("CHECKSUMHASH")){
paytmChecksum = parameters["CHECKSUMHASH"];
parameters.Remove("CHECKSUMHASH");
}
if (CheckSum.verifyCheckSum(workingKey, parameters, paytmChecksum)) {
checkSumMatch = true;
}
}
orderId = parameters["ORDERID"];
Amount = parameters["TXNAMOUNT"];
ResCode = parameters["RESPCODE"];
AuthDesc = parameters["STATUS"];
if (checkSumMatch == true)
{
var order = _orderService.GetOrderById(Convert.ToInt32(orderId));
if (ResCode == "01" && AuthDesc == "TXN_SUCCESS")
{
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
_orderProcessingService.MarkOrderAsPaid(order);
}
return RedirectToRoute("CheckoutCompleted", new { orderId = order.Id });
}
else if (AuthDesc == "TXN_FAILURE")
{
var p = new PayModel();
p.RespMsg = parameters["RESPMSG"].ToString();
return View("~/Plugins/Payments.Paytm/Views/PaymentPaytm/Pay.cshtml", p);
//Response.Write("<script> $(document).ready(function(){ $(\"#submitButton\").on(\"click\",function() {alert('"+parameters["RESPMSG"].ToString()+"');});});<script>");
//alert('@TempData["alertMessage"]');
//return Response.Write(parameters["RESPMSG"].ToString() + "< /br>" + "<a href=\"/Home/Index\">Click here to continue..</a>");
//return red
//return RedirectToRoute("ShoppingCart");
//return Content(parameters["RESPMSG"].ToString() + " < /br>" + "Html.ActionLink(\"Click here to continue..\",\"Index\", \"Home\")");
//return RedirectToAction("Index", "Home", new { area = "" });
}
else
{
return Content("Security Error. Illegal access detected");
}
}
else
{
return Content("Security Error. Illegal access detected, Checksum failed");
}
}
public ActionResult ReturnOLD(FormCollection form)
{
var processor = _paymentService.LoadPaymentMethodBySystemName("Payments.Paytm") as PaytmPaymentProcessor;
if (processor == null ||
!processor.IsPaymentMethodActive(_paymentSettings) || !processor.PluginDescriptor.Installed)
throw new NopException("Paytm module cannot be loaded");
var myUtility = new PaytmHelper();
string orderId, Amount, AuthDesc, ResCode;
bool checkSumMatch = false;
//Assign following values to send it to verifychecksum function.
if (String.IsNullOrWhiteSpace(_PaytmPaymentSettings.MerchantKey))
throw new NopException("Paytm key is not set");
string workingKey = _PaytmPaymentSettings.MerchantKey;
Dictionary<string, string> parameters = new Dictionary<string, string>();
if (Request.Form.AllKeys.Length > 0)
{
string paytmChecksum="";
foreach (string key in Request.Form.Keys){
parameters.Add(key.Trim(), Request.Form[key].Trim());
}
if(parameters.ContainsKey("CHECKSUMHASH")){
paytmChecksum = parameters["CHECKSUMHASH"];
parameters.Remove("CHECKSUMHASH");
}
if (CheckSum.verifyCheckSum(workingKey, parameters, paytmChecksum)) {
checkSumMatch = true;
}
}
orderId = parameters["ORDERID"];
Amount = parameters["TXNAMOUNT"];
ResCode = parameters["RESPCODE"];
AuthDesc = parameters["STATUS"];
if (checkSumMatch == true)
{
if (ResCode == "01" && AuthDesc == "TXN_SUCCESS")
{
var order = _orderService.GetOrderById(Convert.ToInt32(orderId));
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
_orderProcessingService.MarkOrderAsPaid(order);
}
return RedirectToRoute("CheckoutCompleted", new { orderId = order.Id });
}
else if (AuthDesc == "TXN_FAILURE")
{
return RedirectToRoute("ShoppingCart");
}
else
{
return Content("Security Error. Illegal access detected");
}
}
else
{
return Content("Security Error. Illegal access detected, Checksum failed");
}
}
public async Task <IActionResult> PDTHandler()
{
var tx = _webHelper.QueryString <string>("tx");
if (await _paymentPluginManager.LoadPluginBySystemNameAsync("Payments.Paytm") is not PaytmPaymentProcessor processor || !_paymentPluginManager.IsPluginActive(processor))
{
throw new NopException("Paytm module cannot be loaded");
}
var(result, values, response) = await processor.GetPdtDetailsAsync(tx);
if (result)
{
values.TryGetValue("custom", out var orderNumber);
var orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch
{
// ignored
}
var order = await _orderService.GetOrderByGuidAsync(orderNumberGuid);
if (order == null)
{
return(RedirectToAction("Index", "Home", new { area = string.Empty }));
}
var mcGross = decimal.Zero;
try
{
mcGross = decimal.Parse(values["mc_gross"], new CultureInfo("en-US"));
}
catch (Exception exc)
{
await _logger.ErrorAsync("Paytm PDT. Error getting mc_gross", exc);
}
values.TryGetValue("payer_status", out var payerStatus);
values.TryGetValue("payment_status", out var paymentStatus);
values.TryGetValue("pending_reason", out var pendingReason);
values.TryGetValue("mc_currency", out var mcCurrency);
values.TryGetValue("txn_id", out var txnId);
values.TryGetValue("payment_type", out var paymentType);
values.TryGetValue("payer_id", out var payerId);
values.TryGetValue("receiver_id", out var receiverId);
values.TryGetValue("invoice", out var invoice);
values.TryGetValue("mc_fee", out var mcFee);
var sb = new StringBuilder();
sb.AppendLine("Paytm PDT:");
sb.AppendLine("mc_gross: " + mcGross);
sb.AppendLine("Payer status: " + payerStatus);
sb.AppendLine("Payment status: " + paymentStatus);
sb.AppendLine("Pending reason: " + pendingReason);
sb.AppendLine("mc_currency: " + mcCurrency);
sb.AppendLine("txn_id: " + txnId);
sb.AppendLine("payment_type: " + paymentType);
sb.AppendLine("payer_id: " + payerId);
sb.AppendLine("receiver_id: " + receiverId);
sb.AppendLine("invoice: " + invoice);
sb.AppendLine("mc_fee: " + mcFee);
var newPaymentStatus = PaytmHelper.GetPaymentStatus(paymentStatus, string.Empty);
sb.AppendLine("New payment status: " + newPaymentStatus);
//order note
await _orderService.InsertOrderNoteAsync(new OrderNote
{
OrderId = order.Id,
Note = sb.ToString(),
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
//validate order total
var orderTotalSentToPaytm = await _genericAttributeService.GetAttributeAsync <decimal?>(order, PaytmHelper.OrderTotalSentToPaytm);
if (orderTotalSentToPaytm.HasValue && mcGross != orderTotalSentToPaytm.Value)
{
var errorStr = $"Paytm PDT. Returned order total {mcGross} doesn't equal order total {order.OrderTotal}. Order# {order.Id}.";
//log
await _logger.ErrorAsync(errorStr);
//order note
await _orderService.InsertOrderNoteAsync(new OrderNote
{
OrderId = order.Id,
Note = errorStr,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
return(RedirectToAction("Index", "Home", new { area = string.Empty }));
}
//clear attribute
if (orderTotalSentToPaytm.HasValue)
{
await _genericAttributeService.SaveAttributeAsync <decimal?>(order, PaytmHelper.OrderTotalSentToPaytm, null);
}
if (newPaymentStatus != PaymentStatus.Paid)
{
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
if (!_orderProcessingService.CanMarkOrderAsPaid(order))
{
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
//mark order as paid
order.AuthorizationTransactionId = txnId;
await _orderService.UpdateOrderAsync(order);
await _orderProcessingService.MarkOrderAsPaidAsync(order);
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
else
{
if (!values.TryGetValue("custom", out var orderNumber))
{
orderNumber = _webHelper.QueryString <string>("cm");
}
var orderNumberGuid = Guid.Empty;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch
{
// ignored
}
var order = await _orderService.GetOrderByGuidAsync(orderNumberGuid);
if (order == null)
{
return(RedirectToAction("Index", "Home", new { area = string.Empty }));
}
//order note
await _orderService.InsertOrderNoteAsync(new OrderNote
{
OrderId = order.Id,
Note = "Paytm PDT failed. " + response,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
return(RedirectToRoute("CheckoutCompleted", new { orderId = order.Id }));
}
}
