public abstract string SerializePaymentData(BTCPayNetworkBase network, CryptoPaymentData paymentData);
public override IPaymentMethodDetails DeserializePaymentMethodDetails(BTCPayNetworkBase network, string str)
{
return(((BTCPayNetwork)network).ToObject <BitcoinLikeOnChainPaymentMethod>(str));
}
public override CryptoPaymentData DeserializePaymentData(BTCPayNetworkBase network, string str)
{
return(((BTCPayNetwork)network).ToObject <LightningLikePaymentData>(str));
}
public override IPaymentMethodDetails DeserializePaymentMethodDetails(BTCPayNetworkBase network, string str)
{
return(JsonConvert.DeserializeObject <Payments.Lightning.LightningLikePaymentMethodDetails>(str));
}
//TODO: abstract
private async Task <PaymentModel> GetInvoiceModel(string invoiceId, PaymentMethodId paymentMethodId)
{
var invoice = await _InvoiceRepository.GetInvoice(invoiceId);
if (invoice == null)
{
return(null);
}
var store = await _StoreRepository.FindStore(invoice.StoreId);
bool isDefaultPaymentId = false;
if (paymentMethodId == null)
{
paymentMethodId = store.GetDefaultPaymentId(_NetworkProvider);
isDefaultPaymentId = true;
}
BTCPayNetworkBase network = _NetworkProvider.GetNetwork <BTCPayNetwork>(paymentMethodId.CryptoCode);
if (network == null && isDefaultPaymentId)
{
//TODO: need to look into a better way for this as it does not scale
network = _NetworkProvider.GetAll().OfType <BTCPayNetwork>().FirstOrDefault();
paymentMethodId = new PaymentMethodId(network.CryptoCode, PaymentTypes.BTCLike);
}
if (invoice == null || network == null)
{
return(null);
}
if (!invoice.Support(paymentMethodId))
{
if (!isDefaultPaymentId)
{
return(null);
}
var paymentMethodTemp = invoice.GetPaymentMethods()
.Where(c => paymentMethodId.CryptoCode == c.GetId().CryptoCode)
.FirstOrDefault();
if (paymentMethodTemp == null)
{
paymentMethodTemp = invoice.GetPaymentMethods().First();
}
network = paymentMethodTemp.Network;
paymentMethodId = paymentMethodTemp.GetId();
}
var paymentMethod = invoice.GetPaymentMethod(paymentMethodId);
var paymentMethodDetails = paymentMethod.GetPaymentMethodDetails();
var dto = invoice.EntityToDTO();
var cryptoInfo = dto.CryptoInfo.First(o => o.GetpaymentMethodId() == paymentMethodId);
var storeBlob = store.GetStoreBlob();
var currency = invoice.ProductInformation.Currency;
var accounting = paymentMethod.Calculate();
ChangellySettings changelly = (storeBlob.ChangellySettings != null && storeBlob.ChangellySettings.Enabled &&
storeBlob.ChangellySettings.IsConfigured())
? storeBlob.ChangellySettings
: null;
CoinSwitchSettings coinswitch = (storeBlob.CoinSwitchSettings != null && storeBlob.CoinSwitchSettings.Enabled &&
storeBlob.CoinSwitchSettings.IsConfigured())
? storeBlob.CoinSwitchSettings
: null;
var changellyAmountDue = changelly != null
? (accounting.Due.ToDecimal(MoneyUnit.BTC) *
(1m + (changelly.AmountMarkupPercentage / 100m)))
: (decimal?)null;
var paymentMethodHandler = _paymentMethodHandlerDictionary[paymentMethodId];
var model = new PaymentModel()
{
CryptoCode = network.CryptoCode,
RootPath = this.Request.PathBase.Value.WithTrailingSlash(),
OrderId = invoice.OrderId,
InvoiceId = invoice.Id,
DefaultLang = storeBlob.DefaultLang ?? "en",
HtmlTitle = storeBlob.HtmlTitle ?? "BTCPay Invoice",
CustomCSSLink = storeBlob.CustomCSS?.AbsoluteUri,
CustomLogoLink = storeBlob.CustomLogo?.AbsoluteUri,
CryptoImage = Request.GetRelativePathOrAbsolute(paymentMethodHandler.GetCryptoImage(paymentMethodId)),
LightningAmountInSatoshi = storeBlob.LightningAmountInSatoshi,
BtcAddress = paymentMethodDetails.GetPaymentDestination(),
BtcDue = accounting.Due.ToString(),
OrderAmount = (accounting.TotalDue - accounting.NetworkFee).ToString(),
OrderAmountFiat = OrderAmountFromInvoice(network.CryptoCode, invoice.ProductInformation),
CustomerEmail = invoice.RefundMail,
RequiresRefundEmail = storeBlob.RequiresRefundEmail,
ExpirationSeconds = Math.Max(0, (int)(invoice.ExpirationTime - DateTimeOffset.UtcNow).TotalSeconds),
MaxTimeSeconds = (int)(invoice.ExpirationTime - invoice.InvoiceTime).TotalSeconds,
MaxTimeMinutes = (int)(invoice.ExpirationTime - invoice.InvoiceTime).TotalMinutes,
ItemDesc = invoice.ProductInformation.ItemDesc,
Rate = ExchangeRate(paymentMethod),
MerchantRefLink = invoice.RedirectURL ?? "/",
RedirectAutomatically = invoice.RedirectAutomatically,
StoreName = store.StoreName,
PeerInfo = (paymentMethodDetails as LightningLikePaymentMethodDetails)?.NodeInfo,
TxCount = accounting.TxRequired,
BtcPaid = accounting.Paid.ToString(),
#pragma warning disable CS0618 // Type or member is obsolete
Status = invoice.StatusString,
#pragma warning restore CS0618 // Type or member is obsolete
NetworkFee = paymentMethodDetails.GetNextNetworkFee(),
IsMultiCurrency = invoice.GetPayments().Select(p => p.GetPaymentMethodId()).Concat(new[] { paymentMethod.GetId() }).Distinct().Count() > 1,
ChangellyEnabled = changelly != null,
ChangellyMerchantId = changelly?.ChangellyMerchantId,
ChangellyAmountDue = changellyAmountDue,
CoinSwitchEnabled = coinswitch != null,
CoinSwitchAmountMarkupPercentage = coinswitch?.AmountMarkupPercentage ?? 0,
CoinSwitchMerchantId = coinswitch?.MerchantId,
CoinSwitchMode = coinswitch?.Mode,
StoreId = store.Id,
AvailableCryptos = invoice.GetPaymentMethods()
.Where(i => i.Network != null)
.Select(kv =>
{
var availableCryptoPaymentMethodId = kv.GetId();
var availableCryptoHandler = _paymentMethodHandlerDictionary[availableCryptoPaymentMethodId];
return(new PaymentModel.AvailableCrypto()
{
PaymentMethodId = kv.GetId().ToString(),
CryptoCode = kv.GetId().CryptoCode,
PaymentMethodName = availableCryptoHandler.GetPaymentMethodName(availableCryptoPaymentMethodId),
IsLightning =
kv.GetId().PaymentType == PaymentTypes.LightningLike,
CryptoImage = Request.GetRelativePathOrAbsolute(availableCryptoHandler.GetCryptoImage(availableCryptoPaymentMethodId)),
Link = Url.Action(nameof(Checkout),
new
{
invoiceId = invoiceId,
paymentMethodId = kv.GetId().ToString()
})
});
}).Where(c => c.CryptoImage != "/")
.OrderByDescending(a => a.CryptoCode == "BTC").ThenBy(a => a.PaymentMethodName).ThenBy(a => a.IsLightning ? 1 : 0)
.ToList()
};
paymentMethodHandler.PreparePaymentModel(model, dto);
model.PaymentMethodId = paymentMethodId.ToString();
var expiration = TimeSpan.FromSeconds(model.ExpirationSeconds);
model.TimeLeft = expiration.PrettyPrint();
return(model);
}
/// <summary>
/// Add a payment to an invoice
/// </summary>
/// <param name="invoiceId"></param>
/// <param name="date"></param>
/// <param name="paymentData"></param>
/// <param name="cryptoCode"></param>
/// <param name="accounted"></param>
/// <returns>The PaymentEntity or null if already added</returns>
public async Task <PaymentEntity> AddPayment(string invoiceId, DateTimeOffset date, CryptoPaymentData paymentData, BTCPayNetworkBase network, bool accounted = false)
{
using (var context = _ContextFactory.CreateContext())
{
var invoice = context.Invoices.Find(invoiceId);
if (invoice == null)
{
return(null);
}
InvoiceEntity invoiceEntity = ToObject(invoice.Blob);
PaymentMethod paymentMethod = invoiceEntity.GetPaymentMethod(new PaymentMethodId(network.CryptoCode, paymentData.GetPaymentType()));
IPaymentMethodDetails paymentMethodDetails = paymentMethod.GetPaymentMethodDetails();
PaymentEntity entity = new PaymentEntity
{
Version = 1,
#pragma warning disable CS0618
CryptoCode = network.CryptoCode,
#pragma warning restore CS0618
ReceivedTime = date.UtcDateTime,
Accounted = accounted,
NetworkFee = paymentMethodDetails.GetNextNetworkFee(),
Network = network
};
entity.SetCryptoPaymentData(paymentData);
//TODO: abstract
if (paymentMethodDetails is Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod bitcoinPaymentMethod &&
bitcoinPaymentMethod.NetworkFeeMode == NetworkFeeMode.MultiplePaymentsOnly &&
bitcoinPaymentMethod.NextNetworkFee == Money.Zero)
{
bitcoinPaymentMethod.NextNetworkFee = bitcoinPaymentMethod.NetworkFeeRate.GetFee(100); // assume price for 100 bytes
paymentMethod.SetPaymentMethodDetails(bitcoinPaymentMethod);
invoiceEntity.SetPaymentMethod(paymentMethod);
invoice.Blob = ToBytes(invoiceEntity, network);
}
PaymentData data = new PaymentData
{
Id = paymentData.GetPaymentId(),
Blob = ToBytes(entity, entity.Network),
InvoiceDataId = invoiceId,
Accounted = accounted
};
context.Payments.Add(data);
try
{
await context.SaveChangesAsync().ConfigureAwait(false);
}
catch (DbUpdateException) { return(null); } // Already exists
AddToTextSearch(invoiceId, paymentData.GetSearchTerms());
return(entity);
}
}
public override string SerializePaymentData(BTCPayNetworkBase network, CryptoPaymentData paymentData)
{
return(JsonConvert.SerializeObject(paymentData));
}
private string GetCryptoImage(BTCPayNetworkBase network)
{
return(network.CryptoImagePath);
}
public abstract string GetTransactionLink(BTCPayNetworkBase network, string txId);
public override CryptoPaymentData DeserializePaymentData(BTCPayNetworkBase network, string str)
{
return(JsonConvert.DeserializeObject <MoneroLikePaymentData>(str));
}
public abstract ISupportedPaymentMethod DeserializeSupportedPaymentMethod(BTCPayNetworkBase network, JToken value);
public abstract string SerializePaymentMethodDetails(BTCPayNetworkBase network, IPaymentMethodDetails details);
public abstract IPaymentMethodDetails DeserializePaymentMethodDetails(BTCPayNetworkBase network, string str);
public override string SerializePaymentMethodDetails(BTCPayNetworkBase network, IPaymentMethodDetails details)
{
return(((BTCPayNetwork)network).ToString((BitcoinLikeOnChainPaymentMethod)details));
}
public override IPaymentMethodDetails DeserializePaymentMethodDetails(BTCPayNetworkBase network, string str)
{
return(JsonConvert.DeserializeObject <MoneroLikeOnChainPaymentMethodDetails>(str));
}
private async Task <PaymentMethod?> CreatePaymentMethodAsync(
Dictionary <CurrencyPair, Task <RateResult> > fetchingByCurrencyPair,
IPaymentMethodHandler handler, ISupportedPaymentMethod supportedPaymentMethod, BTCPayNetworkBase network,
InvoiceEntity entity,
StoreData store, InvoiceLogs logs,
HashSet <PaymentMethodId> invoicePaymentMethods)
{
try
{
var logPrefix = $"{supportedPaymentMethod.PaymentId.ToPrettyString()}:";
var storeBlob = store.GetStoreBlob();
object?preparePayment;
if (storeBlob.LazyPaymentMethods)
{
preparePayment = null;
}
else
{
preparePayment = handler.PreparePayment(supportedPaymentMethod, store, network);
}
var rate = await fetchingByCurrencyPair[new CurrencyPair(network.CryptoCode, entity.Currency)];
if (rate.BidAsk == null)
{
return(null);
}
var paymentMethod = new PaymentMethod
{
ParentEntity = entity,
Network = network,
Rate = rate.BidAsk.Bid,
PreferOnion = Uri.TryCreate(entity.ServerUrl, UriKind.Absolute, out var u) && u.DnsSafeHost.EndsWith(".onion", StringComparison.OrdinalIgnoreCase)
};
paymentMethod.SetId(supportedPaymentMethod.PaymentId);
using (logs.Measure($"{logPrefix} Payment method details creation"))
{
var paymentDetails = await handler.CreatePaymentMethodDetails(logs, supportedPaymentMethod, paymentMethod, store, network, preparePayment, invoicePaymentMethods);
paymentMethod.SetPaymentMethodDetails(paymentDetails);
}
var criteria = storeBlob.PaymentMethodCriteria?.Find(methodCriteria => methodCriteria.PaymentMethod == supportedPaymentMethod.PaymentId);
if (criteria?.Value != null && entity.Type != InvoiceType.TopUp)
{
var currentRateToCrypto =
await fetchingByCurrencyPair[new CurrencyPair(supportedPaymentMethod.PaymentId.CryptoCode, criteria.Value.Currency)];
if (currentRateToCrypto?.BidAsk != null)
{
var amount = paymentMethod.Calculate().Due.GetValue(network as BTCPayNetwork);
var limitValueCrypto = criteria.Value.Value / currentRateToCrypto.BidAsk.Bid;
if (amount < limitValueCrypto && criteria.Above)
{
logs.Write($"{logPrefix} invoice amount below accepted value for payment method", InvoiceEventData.EventSeverity.Error);
return(null);
}
if (amount > limitValueCrypto && !criteria.Above)
{
logs.Write($"{logPrefix} invoice amount above accepted value for payment method", InvoiceEventData.EventSeverity.Error);
return(null);
}
}
else
{
var suffix = currentRateToCrypto?.EvaluatedRule is string s ? $" ({s})" : string.Empty;
logs.Write($"{logPrefix} This payment method should be created only if the amount of this invoice is in proper range. However, we are unable to fetch the rate of those limits. {suffix}", InvoiceEventData.EventSeverity.Warning);
}
}
#pragma warning disable CS0618
if (paymentMethod.GetId().IsBTCOnChain)
{
entity.TxFee = paymentMethod.NextNetworkFee;
entity.Rate = paymentMethod.Rate;
entity.DepositAddress = paymentMethod.DepositAddress;
}
#pragma warning restore CS0618
return(paymentMethod);
}
catch (PaymentMethodUnavailableException ex)
{
logs.Write($"{supportedPaymentMethod.PaymentId.CryptoCode}: Payment method unavailable ({ex.Message})", InvoiceEventData.EventSeverity.Error);
}
catch (Exception ex)
{
logs.Write($"{supportedPaymentMethod.PaymentId.CryptoCode}: Unexpected exception ({ex})", InvoiceEventData.EventSeverity.Error);
}
return(null);
}
public override ISupportedPaymentMethod DeserializeSupportedPaymentMethod(BTCPayNetworkBase network, JToken value)
{
return(JsonConvert.DeserializeObject <MoneroSupportedPaymentMethod>(value.ToString()));
}
private string GetPaymentMethodName(BTCPayNetworkBase network)
{
return(network.DisplayName);
}
public override string GetTransactionLink(BTCPayNetworkBase network, string txId)
{
return(string.Format(CultureInfo.InvariantCulture, network.BlockExplorerLink, txId));
}
public async Task <bool> NewAddress(string invoiceId, IPaymentMethodDetails paymentMethod, BTCPayNetworkBase network)
{
using (var context = _ContextFactory.CreateContext())
{
var invoice = (await context.Invoices.Where(i => i.Id == invoiceId).ToListAsync()).FirstOrDefault();
if (invoice == null)
{
return(false);
}
var invoiceEntity = ToObject(invoice.Blob);
var currencyData = invoiceEntity.GetPaymentMethod(network, paymentMethod.GetPaymentType());
if (currencyData == null)
{
return(false);
}
var existingPaymentMethod = currencyData.GetPaymentMethodDetails();
if (existingPaymentMethod.GetPaymentDestination() != null)
{
MarkUnassigned(invoiceId, invoiceEntity, context, currencyData.GetId());
}
existingPaymentMethod.SetPaymentDestination(paymentMethod.GetPaymentDestination());
currencyData.SetPaymentMethodDetails(existingPaymentMethod);
#pragma warning disable CS0618
if (network.IsBTC)
{
invoiceEntity.DepositAddress = currencyData.DepositAddress;
}
#pragma warning restore CS0618
invoiceEntity.SetPaymentMethod(currencyData);
invoice.Blob = ToBytes(invoiceEntity, network);
context.AddressInvoices.Add(new AddressInvoiceData()
{
InvoiceDataId = invoiceId,
CreatedTime = DateTimeOffset.UtcNow
}
.Set(GetDestination(currencyData), currencyData.GetId()));
context.HistoricalAddressInvoices.Add(new HistoricalAddressInvoiceData()
{
InvoiceDataId = invoiceId,
Assigned = DateTimeOffset.UtcNow
}.SetAddress(paymentMethod.GetPaymentDestination(), network.CryptoCode));
await context.SaveChangesAsync();
AddToTextSearch(invoice.Id, paymentMethod.GetPaymentDestination());
return(true);
}
}
public override string GetPaymentLink(BTCPayNetworkBase network, IPaymentMethodDetails paymentMethodDetails, Money cryptoInfoDue, string serverUri)
{
return
($"{(network as MoneroLikeSpecificBtcPayNetwork).UriScheme}:{paymentMethodDetails.GetPaymentDestination()}?tx_amount={cryptoInfoDue.ToDecimal(MoneyUnit.BTC)}");
}
private byte[] ToBytes <T>(T obj, BTCPayNetworkBase network = null)
{
return(ZipUtils.Zip(ToString(obj, network)));
}
public BTCPayWallet GetWallet(BTCPayNetworkBase network)
{
ArgumentNullException.ThrowIfNull(network);
return(GetWallet(network.CryptoCode));
}
public override string SerializePaymentData(BTCPayNetworkBase network, CryptoPaymentData paymentData)
{
return(((BTCPayNetwork)network).ToString(paymentData));
}
public bool IsAvailable(BTCPayNetworkBase network)
{
return(_Client.IsAvailable(network));
}
public override string SerializePaymentMethodDetails(BTCPayNetworkBase network, IPaymentMethodDetails details)
{
return(JsonConvert.SerializeObject(details));
}
public abstract CryptoPaymentData DeserializePaymentData(BTCPayNetworkBase network, string str);
