/// <remarks>return 503 (HttpStatusCode.ServiceUnavailable) to ask paypal to resend it at later time again</remarks>
public HttpStatusCode ProcessWebhook(
PayPalApiSettingsBase settings,
NameValueCollection headers,
string rawJson,
string providerSystemName)
{
if (rawJson.IsEmpty())
{
return(HttpStatusCode.OK);
}
dynamic json = JObject.Parse(rawJson);
var eventType = (string)json.event_type;
//foreach (var key in headers.AllKeys)"{0}: {1}".FormatInvariant(key, headers[key]).Dump();
//string data = JsonConvert.SerializeObject(json, Formatting.Indented);data.Dump();
// validating against PayPal SDK failing using sandbox, so better we do not use it:
//var apiContext = new global::PayPal.Api.APIContext
//{
// AccessToken = "I do not have one here",
// Config = new Dictionary<string, string>
// {
// { "mode", settings.UseSandbox ? "sandbox" : "live" },
// { "clientId", settings.ClientId },
// { "clientSecret", settings.Secret },
// { "webhook.id", setting.WebhookId },
// }
//};
//var result = global::PayPal.Api.WebhookEvent.ValidateReceivedEvent(apiContext, headers, rawJson, webhookId);
//}
var paymentId = (string)json.resource.parent_payment;
if (paymentId.IsEmpty())
{
LogError(null, T("Plugins.cloudCommerce.PayPal.FoundOrderForPayment", 0, "".NaIfEmpty()), JsonConvert.SerializeObject(json, Formatting.Indented), isWarning: true);
return(HttpStatusCode.OK);
}
var orders = _orderRepository.Value.Table
.Where(x => x.PaymentMethodSystemName == providerSystemName && x.AuthorizationTransactionCode == paymentId)
.ToList();
if (orders.Count != 1)
{
LogError(null, T("Plugins.cloudCommerce.PayPal.FoundOrderForPayment", orders.Count, paymentId), JsonConvert.SerializeObject(json, Formatting.Indented), isWarning: true);
return(HttpStatusCode.OK);
}
var order = orders.First();
var store = _services.StoreService.GetStoreById(order.StoreId);
var total = decimal.Zero;
var currency = (string)json.resource.amount.currency;
var primaryCurrency = store.PrimaryStoreCurrency.CurrencyCode;
if (!primaryCurrency.IsCaseInsensitiveEqual(currency))
{
LogError(null, T("Plugins.cloudCommerce.PayPal.CurrencyNotEqual", currency.NaIfEmpty(), primaryCurrency), JsonConvert.SerializeObject(json, Formatting.Indented), isWarning: true);
return(HttpStatusCode.OK);
}
eventType = eventType.Substring(eventType.LastIndexOf('.') + 1);
var newPaymentStatus = GetPaymentStatus(eventType, "authorization", order.PaymentStatus);
var isValidTotal = decimal.TryParse((string)json.resource.amount.total, NumberStyles.Currency, CultureInfo.InvariantCulture, out total);
if (newPaymentStatus == PaymentStatus.Refunded && (Math.Abs(order.OrderTotal) - Math.Abs(total)) > decimal.Zero)
{
newPaymentStatus = PaymentStatus.PartiallyRefunded;
}
switch (newPaymentStatus)
{
case PaymentStatus.Pending:
break;
case PaymentStatus.Authorized:
if (_orderProcessingService.CanMarkOrderAsAuthorized(order))
{
_orderProcessingService.MarkAsAuthorized(order);
}
break;
case PaymentStatus.Paid:
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
_orderProcessingService.MarkOrderAsPaid(order);
}
break;
case PaymentStatus.Refunded:
if (_orderProcessingService.CanRefundOffline(order))
{
_orderProcessingService.RefundOffline(order);
}
break;
case PaymentStatus.PartiallyRefunded:
if (_orderProcessingService.CanPartiallyRefundOffline(order, Math.Abs(total)))
{
_orderProcessingService.PartiallyRefundOffline(order, Math.Abs(total));
}
break;
case PaymentStatus.Voided:
if (_orderProcessingService.CanVoidOffline(order))
{
_orderProcessingService.VoidOffline(order);
}
break;
}
AddOrderNote(settings, order, (string)ToInfoString(json), true);
return(HttpStatusCode.OK);
}
protected virtual void ProcessPayment(string orderNumber, string ipnInfo, PaymentStatus newPaymentStatus, decimal mcGross, string transactionId)
{
Guid orderNumberGuid;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch
{
orderNumberGuid = Guid.Empty;
}
var order = _orderService.GetOrderByGuid(orderNumberGuid);
if (order == null)
{
_logger.Error("PayPal IPN. Order is not found", new NopException(ipnInfo));
return;
}
//order note
order.OrderNotes.Add(new OrderNote
{
Note = ipnInfo,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
_orderService.UpdateOrder(order);
//validate order total
if ((newPaymentStatus == PaymentStatus.Authorized || newPaymentStatus == PaymentStatus.Paid) && !Math.Round(mcGross, 2).Equals(Math.Round(order.OrderTotal, 2)))
{
var errorStr = $"PayPal IPN. Returned order total {mcGross} 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);
return;
}
switch (newPaymentStatus)
{
case PaymentStatus.Authorized:
if (_orderProcessingService.CanMarkOrderAsAuthorized(order))
_orderProcessingService.MarkAsAuthorized(order);
break;
case PaymentStatus.Paid:
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
order.AuthorizationTransactionId = transactionId;
_orderService.UpdateOrder(order);
_orderProcessingService.MarkOrderAsPaid(order);
}
break;
case PaymentStatus.Refunded:
var totalToRefund = Math.Abs(mcGross);
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;
}
}
public ActionResult IPNHandler()
{
byte[] param = Request.BinaryRead(Request.ContentLength);
string strRequest = Encoding.ASCII.GetString(param);
Dictionary <string, string> values;
var processor = _paymentService.LoadPaymentMethodBySystemName("Payments.PayPalStandard") as PayPalStandardPaymentProcessor;
if (processor == null ||
!processor.IsPaymentMethodActive(_paymentSettings) || !processor.PluginDescriptor.Installed)
{
throw new NopException("PayPal Standard module cannot be loaded");
}
if (processor.VerifyIpn(strRequest, out values))
{
#region values
decimal mc_gross = decimal.Zero;
try
{
mc_gross = decimal.Parse(values["mc_gross"], new CultureInfo("en-US"));
}
catch { }
string payer_status = string.Empty;
values.TryGetValue("payer_status", out payer_status);
string payment_status = string.Empty;
values.TryGetValue("payment_status", out payment_status);
string pending_reason = string.Empty;
values.TryGetValue("pending_reason", out pending_reason);
string mc_currency = string.Empty;
values.TryGetValue("mc_currency", out mc_currency);
string txn_id = string.Empty;
values.TryGetValue("txn_id", out txn_id);
string txn_type = string.Empty;
values.TryGetValue("txn_type", out txn_type);
string rp_invoice_id = string.Empty;
values.TryGetValue("rp_invoice_id", out rp_invoice_id);
string payment_type = string.Empty;
values.TryGetValue("payment_type", out payment_type);
string payer_id = string.Empty;
values.TryGetValue("payer_id", out payer_id);
string receiver_id = string.Empty;
values.TryGetValue("receiver_id", out receiver_id);
string invoice = string.Empty;
values.TryGetValue("invoice", out invoice);
string payment_fee = string.Empty;
values.TryGetValue("payment_fee", out payment_fee);
#endregion
var sb = new StringBuilder();
sb.AppendLine("Paypal IPN:");
foreach (KeyValuePair <string, string> kvp in values)
{
sb.AppendLine(kvp.Key + ": " + kvp.Value);
}
var newPaymentStatus = PaypalHelper.GetPaymentStatus(payment_status, pending_reason);
sb.AppendLine("New payment status: " + newPaymentStatus);
switch (txn_type)
{
case "recurring_payment_profile_created":
//do nothing here
break;
case "recurring_payment":
#region Recurring payment
{
Guid 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 = rp.RecurringPaymentHistory;
if (!recurringPaymentHistory.Any())
{
//first payment
var rph = new RecurringPaymentHistory
{
RecurringPaymentId = rp.Id,
OrderId = initialOrder.Id,
CreatedOnUtc = DateTime.UtcNow
};
rp.RecurringPaymentHistory.Add(rph);
_orderService.UpdateRecurringPayment(rp);
}
else
{
//next payments
var processPaymentResult = new ProcessPaymentResult();
processPaymentResult.NewPaymentStatus = newPaymentStatus;
if (newPaymentStatus == PaymentStatus.Authorized)
{
processPaymentResult.AuthorizationTransactionId = txn_id;
}
else
{
processPaymentResult.CaptureTransactionId = txn_id;
}
_orderProcessingService.ProcessNextRecurringPayment(rp, processPaymentResult);
}
}
break;
}
}
//this.OrderService.InsertOrderNote(newOrder.OrderId, sb.ToString(), DateTime.UtcNow);
_logger.Information("PayPal IPN. Recurring info", new NopException(sb.ToString()));
}
else
{
_logger.Error("PayPal IPN. Order is not found", new NopException(sb.ToString()));
}
}
#endregion
break;
default:
#region Standard payment
{
string orderNumber = string.Empty;
values.TryGetValue("custom", out orderNumber);
Guid 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);
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
string errorStr = string.Format("PayPal IPN. Returned order total {0} doesn't equal order total {1}. Order# {2}.", mc_gross, order.OrderTotal, order.Id);
//log
_logger.Error(errorStr);
//order note
order.OrderNotes.Add(new OrderNote
{
Note = errorStr,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
_orderService.UpdateOrder(order);
}
}
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
string errorStr = string.Format("PayPal IPN. Returned order total {0} doesn't equal order total {1}. Order# {2}.", mc_gross, order.OrderTotal, order.Id);
//log
_logger.Error(errorStr);
//order note
order.OrderNotes.Add(new OrderNote
{
Note = errorStr,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
_orderService.UpdateOrder(order);
}
}
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("PayPal IPN. Order is not found", new NopException(sb.ToString()));
}
}
#endregion
break;
}
}
else
{
_logger.Error("PayPal IPN failed.", new NopException(strRequest));
}
//nothing should be rendered to visitor
return(Content(""));
}