private async Task <HttpResponseMessage> SendNotification(BitPayInvoicePaymentNotificationEventWrapper notification, CancellationToken cancellationToken)
{
var request = new HttpRequestMessage();
request.Method = HttpMethod.Post;
var notificationString = NBitcoin.JsonConverters.Serializer.ToString(notification);
var jobj = JObject.Parse(notificationString);
if (notification.ExtendedNotification)
{
jobj.Remove("extendedNotification");
jobj.Remove("notificationURL"); notificationString = jobj.ToString();
}
else
{
notificationString = jobj["data"].ToString();
}
request.RequestUri = new Uri(notification.NotificationURL, UriKind.Absolute);
request.Content = new StringContent(notificationString, UTF8, "application/json");
var response = await Enqueue(notification.Data.Id, async() =>
{
using (CancellationTokenSource cts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken))
{
cts.CancelAfter(TimeSpan.FromMinutes(1.0));
return(await _Client.SendAsync(request, cts.Token));
}
});
return(response);
}
async Task Notify(InvoiceEntity invoice, InvoiceEvent invoiceEvent, bool extendedNotification)
{
var dto = invoice.EntityToDTO();
var notification = new BitPayInvoicePaymentNotificationEventWrapper()
{
Data = new InvoicePaymentNotification()
{
Id = dto.Id,
Currency = dto.Currency,
CurrentTime = dto.CurrentTime,
ExceptionStatus = dto.ExceptionStatus,
ExpirationTime = dto.ExpirationTime,
InvoiceTime = dto.InvoiceTime,
PosData = dto.PosData,
Price = dto.Price,
Status = dto.Status,
BuyerFields = invoice.RefundMail == null ? null : new Newtonsoft.Json.Linq.JObject()
{
new JProperty("buyerEmail", invoice.RefundMail)
},
PaymentSubtotals = dto.PaymentSubtotals,
PaymentTotals = dto.PaymentTotals,
AmountPaid = dto.AmountPaid,
ExchangeRates = dto.ExchangeRates,
OrderId = dto.OrderId
},
Event = new BitPayInvoicePaymentNotificationEvent()
{
Code = invoiceEvent.EventCode,
Name = invoiceEvent.Name
},
ExtendedNotification = extendedNotification,
NotificationURL = invoice.NotificationURL?.AbsoluteUri
};
// For lightning network payments, paid, confirmed and completed come all at once.
// So despite the event is "paid" or "confirmed" the Status of the invoice is technically complete
// This confuse loggers who think their endpoint get duplicated events
// So here, we just override the status expressed by the notification
if (invoiceEvent.Name == InvoiceEvent.Confirmed)
{
notification.Data.Status = InvoiceState.ToString(InvoiceStatus.Confirmed);
}
if (invoiceEvent.Name == InvoiceEvent.PaidInFull)
{
notification.Data.Status = InvoiceState.ToString(InvoiceStatus.Paid);
}
//////////////////
// We keep backward compatibility with bitpay by passing BTC info to the notification
// we don't pass other info, as it is a bad idea to use IPN data for logic processing (can be faked)
var btcCryptoInfo = dto.CryptoInfo.FirstOrDefault(c => c.GetpaymentMethodId() == new PaymentMethodId("BTC", Payments.PaymentTypes.BTCLike));
if (btcCryptoInfo != null)
{
#pragma warning disable CS0618
notification.Data.Rate = dto.Rate;
notification.Data.Url = dto.Url;
notification.Data.BTCDue = dto.BTCDue;
notification.Data.BTCPaid = dto.BTCPaid;
notification.Data.BTCPrice = dto.BTCPrice;
#pragma warning restore CS0618
}
if (invoiceEvent.Name != InvoiceEvent.Expired && !String.IsNullOrEmpty(invoice.NotificationEmail))
{
var json = NBitcoin.JsonConverters.Serializer.ToString(notification);
var store = await _StoreRepository.FindStore(invoice.StoreId);
var storeName = store.StoreName ?? "BTCPay Server";
var emailBody = $"Store: {storeName}<br>" +
$"Invoice ID: {notification.Data.Id}<br>" +
$"Status: {notification.Data.Status}<br>" +
$"Amount: {notification.Data.Price} {notification.Data.Currency}<br>" +
$"<br><details><summary>Details</summary><pre>{json}</pre></details>";
_EmailSenderFactory.GetEmailSender(invoice.StoreId).SendEmail(
invoice.NotificationEmail,
$"{storeName} Invoice Notification - ${invoice.StoreId}",
emailBody);
}
if (invoice.NotificationURL != null)
{
var invoiceStr = NBitcoin.JsonConverters.Serializer.ToString(new ScheduledJob()
{
TryCount = 0, Notification = notification
});
_JobClient.Schedule((cancellation) => NotifyHttp(invoiceStr, cancellation), TimeSpan.Zero);
}
}
