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https://github.com/btcpayserver/btcpayserver.git
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b4946f4db1
* Fix divisibility in invoice details of lightning amounts This PR will show 11 decimal in the invoice details for BTC amount of lightning payment methods. It also hacks around the fact that some lightning clients don't create the requested amount of sats, which resulted in over or under payments. (Blink not supporting msats, and strike) Now, In that case, a payment method fee (which can be negative) called tweak fee will be added to the prompt. We are also hiding this tweak fee from the user in the checkout page in order to not disturb the UI with inconsequential fee of 0.000000001 sats. * Only show 8 digits in checkout, even if amount is 11 digits
70 lines
2.7 KiB
C#
70 lines
2.7 KiB
C#
using System.Collections.Generic;
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using System.Linq;
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using BTCPayServer.Models;
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using BTCPayServer.Payments.Lightning;
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using BTCPayServer.Services.Invoices;
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using BTCPayServer.Services.Rates;
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using Microsoft.AspNetCore.Mvc;
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using NBitpayClient;
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namespace BTCPayServer.Payments.Bitcoin
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{
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public class BitcoinPaymentMethodBitpayAPIExtension : IPaymentMethodBitpayAPIExtension
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{
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public BitcoinPaymentMethodBitpayAPIExtension(
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PaymentMethodId paymentMethodId,
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IEnumerable<IPaymentLinkExtension> paymentLinkExtensions,
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CurrencyNameTable currencyNameTable,
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PaymentMethodHandlerDictionary handlers)
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{
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PaymentMethodId = paymentMethodId;
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_currencyNameTable = currencyNameTable;
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paymentLinkExtension = paymentLinkExtensions.Single(p => p.PaymentMethodId == PaymentMethodId);
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handler = (BitcoinLikePaymentHandler)handlers[paymentMethodId];
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}
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public PaymentMethodId PaymentMethodId { get; }
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private IPaymentLinkExtension paymentLinkExtension;
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private BitcoinLikePaymentHandler handler;
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private readonly CurrencyNameTable _currencyNameTable;
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internal static decimal ToSmallestUnit(int divisibility, decimal v)
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{
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for (int i = 0; i < divisibility; i++)
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{
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v *= 10.0m;
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}
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return v;
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}
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public void PopulateCryptoInfo(Services.Invoices.InvoiceCryptoInfo cryptoInfo, InvoiceResponse dto, PaymentPrompt prompt, IUrlHelper urlHelper)
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{
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var accounting = prompt.Calculate();
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cryptoInfo.PaymentUrls = new Services.Invoices.InvoiceCryptoInfo.InvoicePaymentUrls()
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{
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BIP21 = paymentLinkExtension.GetPaymentLink(prompt, urlHelper),
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};
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var minerInfo = new MinerFeeInfo();
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if (_currencyNameTable.GetCurrencyData(prompt.Currency, false)?.Divisibility is int divisibility)
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{
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minerInfo.TotalFee = ToSmallestUnit(divisibility, accounting.PaymentMethodFee);
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}
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minerInfo.SatoshiPerBytes = handler.ParsePaymentPromptDetails(prompt.Details).RecommendedFeeRate.SatoshiPerByte;
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dto.MinerFees.TryAdd(cryptoInfo.CryptoCode, minerInfo);
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#pragma warning disable 618
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if (prompt.Currency == "BTC")
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{
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dto.BTCPrice = cryptoInfo.Price;
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dto.Rate = cryptoInfo.Rate;
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dto.ExRates = cryptoInfo.ExRates;
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dto.BitcoinAddress = cryptoInfo.Address;
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dto.BTCPaid = cryptoInfo.Paid;
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dto.BTCDue = cryptoInfo.Due;
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dto.PaymentUrls = cryptoInfo.PaymentUrls;
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}
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#pragma warning restore 618
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}
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}
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}
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