mirror of
https://github.com/btcpayserver/btcpayserver.git
synced 2024-11-20 10:40:29 +01:00
418 lines
22 KiB
C#
418 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using BTCPayServer.Client.Models;
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using BTCPayServer.Data;
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using BTCPayServer.Events;
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using BTCPayServer.HostedServices;
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using BTCPayServer.Logging;
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using BTCPayServer.Models;
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using BTCPayServer.Payments;
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using BTCPayServer.Rating;
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using BTCPayServer.Security;
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using BTCPayServer.Services.Apps;
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using BTCPayServer.Services.Invoices;
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using BTCPayServer.Services.Rates;
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using BTCPayServer.Services.Stores;
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using BTCPayServer.Validation;
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using Microsoft.AspNetCore.Identity;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using NBitcoin;
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using NBitpayClient;
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using Newtonsoft.Json;
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using BitpayCreateInvoiceRequest = BTCPayServer.Models.BitpayCreateInvoiceRequest;
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using StoreData = BTCPayServer.Data.StoreData;
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namespace BTCPayServer.Controllers
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{
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[Filters.BitpayAPIConstraint(false)]
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public partial class InvoiceController : Controller
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{
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readonly InvoiceRepository _InvoiceRepository;
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readonly ContentSecurityPolicies _CSP;
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readonly RateFetcher _RateProvider;
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readonly StoreRepository _StoreRepository;
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readonly UserManager<ApplicationUser> _UserManager;
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private readonly CurrencyNameTable _CurrencyNameTable;
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readonly EventAggregator _EventAggregator;
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readonly BTCPayNetworkProvider _NetworkProvider;
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private readonly PaymentMethodHandlerDictionary _paymentMethodHandlerDictionary;
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private readonly ApplicationDbContextFactory _dbContextFactory;
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private readonly PullPaymentHostedService _paymentHostedService;
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readonly IServiceProvider _ServiceProvider;
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public InvoiceController(
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IServiceProvider serviceProvider,
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InvoiceRepository invoiceRepository,
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CurrencyNameTable currencyNameTable,
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UserManager<ApplicationUser> userManager,
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RateFetcher rateProvider,
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StoreRepository storeRepository,
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EventAggregator eventAggregator,
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ContentSecurityPolicies csp,
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BTCPayNetworkProvider networkProvider,
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PaymentMethodHandlerDictionary paymentMethodHandlerDictionary,
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ApplicationDbContextFactory dbContextFactory,
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PullPaymentHostedService paymentHostedService)
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{
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_ServiceProvider = serviceProvider;
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_CurrencyNameTable = currencyNameTable ?? throw new ArgumentNullException(nameof(currencyNameTable));
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_StoreRepository = storeRepository ?? throw new ArgumentNullException(nameof(storeRepository));
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_InvoiceRepository = invoiceRepository ?? throw new ArgumentNullException(nameof(invoiceRepository));
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_RateProvider = rateProvider ?? throw new ArgumentNullException(nameof(rateProvider));
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_UserManager = userManager;
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_EventAggregator = eventAggregator;
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_NetworkProvider = networkProvider;
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_paymentMethodHandlerDictionary = paymentMethodHandlerDictionary;
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_dbContextFactory = dbContextFactory;
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_paymentHostedService = paymentHostedService;
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_CSP = csp;
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}
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internal async Task<DataWrapper<InvoiceResponse>> CreateInvoiceCore(BitpayCreateInvoiceRequest invoice,
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StoreData store, string serverUrl, List<string> additionalTags = null,
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CancellationToken cancellationToken = default)
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{
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var entity = await CreateInvoiceCoreRaw(invoice, store, serverUrl, additionalTags, cancellationToken);
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var resp = entity.EntityToDTO();
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return new DataWrapper<InvoiceResponse>(resp) { Facade = "pos/invoice" };
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}
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internal async Task<InvoiceEntity> CreateInvoiceCoreRaw(BitpayCreateInvoiceRequest invoice, StoreData store, string serverUrl, List<string> additionalTags = null, CancellationToken cancellationToken = default)
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{
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var storeBlob = store.GetStoreBlob();
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var entity = _InvoiceRepository.CreateNewInvoice();
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entity.ExpirationTime = invoice.ExpirationTime is DateTimeOffset v ? v : entity.InvoiceTime + storeBlob.InvoiceExpiration;
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entity.MonitoringExpiration = entity.ExpirationTime + storeBlob.MonitoringExpiration;
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if (entity.ExpirationTime - TimeSpan.FromSeconds(30.0) < entity.InvoiceTime)
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{
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throw new BitpayHttpException(400, "The expirationTime is set too soon");
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}
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invoice.Currency = invoice.Currency?.ToUpperInvariant() ?? "USD";
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entity.Currency = invoice.Currency;
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entity.Metadata.OrderId = invoice.OrderId;
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entity.Metadata.PosData = invoice.PosData;
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entity.ServerUrl = serverUrl;
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entity.FullNotifications = invoice.FullNotifications || invoice.ExtendedNotifications;
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entity.ExtendedNotifications = invoice.ExtendedNotifications;
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entity.NotificationURLTemplate = invoice.NotificationURL;
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entity.NotificationEmail = invoice.NotificationEmail;
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if (additionalTags != null)
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entity.InternalTags.AddRange(additionalTags);
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FillBuyerInfo(invoice, entity);
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var taxIncluded = invoice.TaxIncluded.HasValue ? invoice.TaxIncluded.Value : 0m;
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var currencyInfo = _CurrencyNameTable.GetNumberFormatInfo(invoice.Currency, false);
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if (currencyInfo != null)
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{
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int divisibility = currencyInfo.CurrencyDecimalDigits;
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invoice.Price = invoice.Price.RoundToSignificant(ref divisibility);
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divisibility = currencyInfo.CurrencyDecimalDigits;
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invoice.TaxIncluded = taxIncluded.RoundToSignificant(ref divisibility);
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}
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invoice.Price = Math.Max(0.0m, invoice.Price);
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invoice.TaxIncluded = Math.Max(0.0m, taxIncluded);
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invoice.TaxIncluded = Math.Min(taxIncluded, invoice.Price);
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entity.Metadata.ItemCode = invoice.ItemCode;
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entity.Metadata.ItemDesc = invoice.ItemDesc;
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entity.Metadata.Physical = invoice.Physical;
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entity.Metadata.TaxIncluded = invoice.TaxIncluded;
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entity.Currency = invoice.Currency;
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entity.Price = invoice.Price;
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entity.RedirectURLTemplate = invoice.RedirectURL ?? store.StoreWebsite;
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entity.RedirectAutomatically =
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invoice.RedirectAutomatically.GetValueOrDefault(storeBlob.RedirectAutomatically);
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entity.SpeedPolicy = ParseSpeedPolicy(invoice.TransactionSpeed, store.SpeedPolicy);
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IPaymentFilter excludeFilter = null;
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if (invoice.PaymentCurrencies?.Any() is true)
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{
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invoice.SupportedTransactionCurrencies ??=
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new Dictionary<string, InvoiceSupportedTransactionCurrency>();
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foreach (string paymentCurrency in invoice.PaymentCurrencies)
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{
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invoice.SupportedTransactionCurrencies.TryAdd(paymentCurrency,
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new InvoiceSupportedTransactionCurrency() { Enabled = true });
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}
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}
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if (invoice.SupportedTransactionCurrencies != null && invoice.SupportedTransactionCurrencies.Count != 0)
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{
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var supportedTransactionCurrencies = invoice.SupportedTransactionCurrencies
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.Where(c => c.Value.Enabled)
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.Select(c => PaymentMethodId.TryParse(c.Key, out var p) ? p : null)
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.Where(c => c != null)
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.ToHashSet();
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excludeFilter = PaymentFilter.Where(p => !supportedTransactionCurrencies.Contains(p));
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}
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entity.PaymentTolerance = storeBlob.PaymentTolerance;
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return await CreateInvoiceCoreRaw(entity, store, excludeFilter, cancellationToken);
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}
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internal async Task<InvoiceEntity> CreateInvoiceCoreRaw(CreateInvoiceRequest invoice, StoreData store, string serverUrl, List<string> additionalTags = null, CancellationToken cancellationToken = default)
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{
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var storeBlob = store.GetStoreBlob();
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var entity = _InvoiceRepository.CreateNewInvoice();
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entity.ExpirationTime = entity.InvoiceTime + (invoice.Checkout.Expiration ?? storeBlob.InvoiceExpiration);
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entity.MonitoringExpiration = entity.ExpirationTime + (invoice.Checkout.Monitoring ?? storeBlob.MonitoringExpiration);
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if (invoice.Metadata != null)
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entity.Metadata = InvoiceMetadata.FromJObject(invoice.Metadata);
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invoice.Checkout ??= new CreateInvoiceRequest.CheckoutOptions();
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entity.Currency = invoice.Currency;
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entity.Price = invoice.Amount;
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entity.SpeedPolicy = invoice.Checkout.SpeedPolicy ?? store.SpeedPolicy;
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IPaymentFilter excludeFilter = null;
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if (invoice.Checkout.PaymentMethods != null)
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{
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var supportedTransactionCurrencies = invoice.Checkout.PaymentMethods
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.Select(c => PaymentMethodId.TryParse(c, out var p) ? p : null)
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.ToHashSet();
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excludeFilter = PaymentFilter.Where(p => !supportedTransactionCurrencies.Contains(p));
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}
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entity.PaymentTolerance = invoice.Checkout.PaymentTolerance ?? storeBlob.PaymentTolerance;
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if (additionalTags != null)
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entity.InternalTags.AddRange(additionalTags);
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return await CreateInvoiceCoreRaw(entity, store, excludeFilter, cancellationToken);
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}
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internal async Task<InvoiceEntity> CreateInvoiceCoreRaw(InvoiceEntity entity, StoreData store, IPaymentFilter invoicePaymentMethodFilter, CancellationToken cancellationToken = default)
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{
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InvoiceLogs logs = new InvoiceLogs();
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logs.Write("Creation of invoice starting", InvoiceEventData.EventSeverity.Info);
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var getAppsTaggingStore = _InvoiceRepository.GetAppsTaggingStore(store.Id);
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var storeBlob = store.GetStoreBlob();
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if (entity.Metadata.BuyerEmail != null)
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{
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if (!EmailValidator.IsEmail(entity.Metadata.BuyerEmail))
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throw new BitpayHttpException(400, "Invalid email");
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entity.RefundMail = entity.Metadata.BuyerEmail;
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}
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entity.Status = InvoiceStatus.New;
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HashSet<CurrencyPair> currencyPairsToFetch = new HashSet<CurrencyPair>();
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var rules = storeBlob.GetRateRules(_NetworkProvider);
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var excludeFilter = storeBlob.GetExcludedPaymentMethods(); // Here we can compose filters from other origin with PaymentFilter.Any()
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if (invoicePaymentMethodFilter != null)
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{
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excludeFilter = PaymentFilter.Or(excludeFilter,
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invoicePaymentMethodFilter);
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}
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foreach (var network in store.GetSupportedPaymentMethods(_NetworkProvider)
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.Where(s => !excludeFilter.Match(s.PaymentId))
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.Select(c => _NetworkProvider.GetNetwork<BTCPayNetworkBase>(c.PaymentId.CryptoCode))
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.Where(c => c != null))
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{
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currencyPairsToFetch.Add(new CurrencyPair(network.CryptoCode, entity.Currency));
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foreach (var paymentMethodCriteria in store.GetPaymentMethodCriteria(_NetworkProvider, storeBlob))
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{
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if (paymentMethodCriteria.Value != null)
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{
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currencyPairsToFetch.Add(new CurrencyPair(network.CryptoCode, paymentMethodCriteria.Value.Currency));
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}
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}
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}
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var rateRules = storeBlob.GetRateRules(_NetworkProvider);
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var fetchingByCurrencyPair = _RateProvider.FetchRates(currencyPairsToFetch, rateRules, cancellationToken);
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var fetchingAll = WhenAllFetched(logs, fetchingByCurrencyPair);
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List<ISupportedPaymentMethod> supported = new List<ISupportedPaymentMethod>();
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var paymentMethods = new PaymentMethodDictionary();
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// This loop ends with .ToList so we are querying all payment methods at once
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// instead of sequentially to improve response time
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foreach (var o in store.GetSupportedPaymentMethods(_NetworkProvider)
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.Where(s => !excludeFilter.Match(s.PaymentId) && _paymentMethodHandlerDictionary.Support(s.PaymentId))
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.Select(c =>
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(Handler: _paymentMethodHandlerDictionary[c.PaymentId],
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SupportedPaymentMethod: c,
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Network: _NetworkProvider.GetNetwork<BTCPayNetworkBase>(c.PaymentId.CryptoCode)))
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.Where(c => c.Network != null)
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.Select(o =>
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(SupportedPaymentMethod: o.SupportedPaymentMethod,
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PaymentMethod: CreatePaymentMethodAsync(fetchingByCurrencyPair, o.Handler, o.SupportedPaymentMethod, o.Network, entity, store, logs)))
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.ToList())
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{
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var paymentMethod = await o.PaymentMethod;
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if (paymentMethod == null)
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continue;
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supported.Add(o.SupportedPaymentMethod);
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paymentMethods.Add(paymentMethod);
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}
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if (supported.Count == 0)
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{
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StringBuilder errors = new StringBuilder();
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if (!store.GetSupportedPaymentMethods(_NetworkProvider).Any())
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errors.AppendLine("Warning: No wallet has been linked to your BTCPay Store. See the following link for more information on how to connect your store and wallet. (https://docs.btcpayserver.org/WalletSetup/)");
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foreach (var error in logs.ToList())
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{
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errors.AppendLine(error.ToString());
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}
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throw new BitpayHttpException(400, errors.ToString());
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}
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entity.SetSupportedPaymentMethods(supported);
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entity.SetPaymentMethods(paymentMethods);
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foreach (var app in await getAppsTaggingStore)
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{
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entity.InternalTags.Add(AppService.GetAppInternalTag(app.Id));
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}
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using (logs.Measure("Saving invoice"))
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{
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entity = await _InvoiceRepository.CreateInvoiceAsync(store.Id, entity);
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}
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_ = Task.Run(async () =>
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{
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try
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{
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await fetchingAll;
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}
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catch (AggregateException ex)
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{
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ex.Handle(e => { logs.Write($"Error while fetching rates {ex}", InvoiceEventData.EventSeverity.Error); return true; });
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}
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await _InvoiceRepository.AddInvoiceLogs(entity.Id, logs);
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});
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_EventAggregator.Publish(new Events.InvoiceEvent(entity, InvoiceEvent.Created));
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return entity;
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}
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private Task WhenAllFetched(InvoiceLogs logs, Dictionary<CurrencyPair, Task<RateResult>> fetchingByCurrencyPair)
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{
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return Task.WhenAll(fetchingByCurrencyPair.Select(async pair =>
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{
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var rateResult = await pair.Value;
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logs.Write($"{pair.Key}: The rating rule is {rateResult.Rule}", InvoiceEventData.EventSeverity.Info);
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logs.Write($"{pair.Key}: The evaluated rating rule is {rateResult.EvaluatedRule}", InvoiceEventData.EventSeverity.Info);
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if (rateResult.Errors.Count != 0)
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{
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var allRateRuleErrors = string.Join(", ", rateResult.Errors.ToArray());
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logs.Write($"{pair.Key}: Rate rule error ({allRateRuleErrors})", InvoiceEventData.EventSeverity.Error);
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}
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foreach (var ex in rateResult.ExchangeExceptions)
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{
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logs.Write($"{pair.Key}: Exception reaching exchange {ex.ExchangeName} ({ex.Exception.Message})", InvoiceEventData.EventSeverity.Error);
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}
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}).ToArray());
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}
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private async Task<PaymentMethod> CreatePaymentMethodAsync(Dictionary<CurrencyPair, Task<RateResult>> fetchingByCurrencyPair, IPaymentMethodHandler handler, ISupportedPaymentMethod supportedPaymentMethod, BTCPayNetworkBase network, InvoiceEntity entity, StoreData store, InvoiceLogs logs)
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{
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try
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{
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var logPrefix = $"{supportedPaymentMethod.PaymentId.ToPrettyString()}:";
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var storeBlob = store.GetStoreBlob();
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var preparePayment = handler.PreparePayment(supportedPaymentMethod, store, network);
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var rate = await fetchingByCurrencyPair[new CurrencyPair(network.CryptoCode, entity.Currency)];
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if (rate.BidAsk == null)
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{
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return null;
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}
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PaymentMethod paymentMethod = new PaymentMethod();
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paymentMethod.ParentEntity = entity;
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paymentMethod.Network = network;
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paymentMethod.SetId(supportedPaymentMethod.PaymentId);
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paymentMethod.Rate = rate.BidAsk.Bid;
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paymentMethod.PreferOnion = Uri.TryCreate(entity.ServerUrl, UriKind.Absolute, out var u) && u.DnsSafeHost.EndsWith(".onion", StringComparison.OrdinalIgnoreCase);
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using (logs.Measure($"{logPrefix} Payment method details creation"))
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{
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var paymentDetails = await handler.CreatePaymentMethodDetails(logs, supportedPaymentMethod, paymentMethod, store, network, preparePayment);
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paymentMethod.SetPaymentMethodDetails(paymentDetails);
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}
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var criteria = store.GetPaymentMethodCriteria(_NetworkProvider, storeBlob)?.Find(methodCriteria => methodCriteria.PaymentMethod == supportedPaymentMethod.PaymentId);
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if (criteria?.Value != null)
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{
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var currentRateToCrypto =
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await fetchingByCurrencyPair[new CurrencyPair(supportedPaymentMethod.PaymentId.CryptoCode, criteria.Value.Currency)];
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if (currentRateToCrypto?.BidAsk != null)
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{
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var amount = paymentMethod.Calculate().Due.GetValue(network as BTCPayNetwork);
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var limitValueCrypto = criteria.Value.Value / currentRateToCrypto.BidAsk.Bid;
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if (amount < limitValueCrypto && criteria.Above)
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{
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logs.Write($"{logPrefix} invoice amount below accepted value for payment method", InvoiceEventData.EventSeverity.Error);
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return null;
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}
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if (amount > limitValueCrypto && !criteria.Above)
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{
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logs.Write($"{logPrefix} invoice amount above accepted value for payment method", InvoiceEventData.EventSeverity.Error);
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return null;
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}
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}
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}
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#pragma warning disable CS0618
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if (paymentMethod.GetId().IsBTCOnChain)
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{
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entity.TxFee = paymentMethod.NextNetworkFee;
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entity.Rate = paymentMethod.Rate;
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entity.DepositAddress = paymentMethod.DepositAddress;
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}
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#pragma warning restore CS0618
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return paymentMethod;
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}
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catch (PaymentMethodUnavailableException ex)
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{
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logs.Write($"{supportedPaymentMethod.PaymentId.CryptoCode}: Payment method unavailable ({ex.Message})", InvoiceEventData.EventSeverity.Error);
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}
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catch (Exception ex)
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{
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logs.Write($"{supportedPaymentMethod.PaymentId.CryptoCode}: Unexpected exception ({ex.ToString()})", InvoiceEventData.EventSeverity.Error);
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}
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return null;
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}
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private SpeedPolicy ParseSpeedPolicy(string transactionSpeed, SpeedPolicy defaultPolicy)
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{
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if (transactionSpeed == null)
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return defaultPolicy;
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var mappings = new Dictionary<string, SpeedPolicy>();
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mappings.Add("low", SpeedPolicy.LowSpeed);
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mappings.Add("low-medium", SpeedPolicy.LowMediumSpeed);
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mappings.Add("medium", SpeedPolicy.MediumSpeed);
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mappings.Add("high", SpeedPolicy.HighSpeed);
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if (!mappings.TryGetValue(transactionSpeed, out SpeedPolicy policy))
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policy = defaultPolicy;
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return policy;
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}
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private void FillBuyerInfo(BitpayCreateInvoiceRequest req, InvoiceEntity invoiceEntity)
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{
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var buyerInformation = invoiceEntity.Metadata;
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buyerInformation.BuyerAddress1 = req.BuyerAddress1;
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buyerInformation.BuyerAddress2 = req.BuyerAddress2;
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buyerInformation.BuyerCity = req.BuyerCity;
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buyerInformation.BuyerCountry = req.BuyerCountry;
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buyerInformation.BuyerEmail = req.BuyerEmail;
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buyerInformation.BuyerName = req.BuyerName;
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buyerInformation.BuyerPhone = req.BuyerPhone;
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buyerInformation.BuyerState = req.BuyerState;
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buyerInformation.BuyerZip = req.BuyerZip;
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var buyer = req.Buyer;
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if (buyer == null)
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return;
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buyerInformation.BuyerAddress1 ??= buyer.Address1;
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buyerInformation.BuyerAddress2 ??= buyer.Address2;
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buyerInformation.BuyerCity ??= buyer.City;
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buyerInformation.BuyerCountry ??= buyer.country;
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buyerInformation.BuyerEmail ??= buyer.email;
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buyerInformation.BuyerName ??= buyer.Name;
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buyerInformation.BuyerPhone ??= buyer.phone;
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buyerInformation.BuyerState ??= buyer.State;
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buyerInformation.BuyerZip ??= buyer.zip;
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}
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}
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}
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