mirror of
https://github.com/btcpayserver/btcpayserver.git
synced 2024-11-20 02:28:31 +01:00
665 lines
30 KiB
C#
665 lines
30 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Net.WebSockets;
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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.Data;
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using BTCPayServer.HostedServices;
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using BTCPayServer.ModelBinders;
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using BTCPayServer.Models;
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using BTCPayServer.Models.WalletViewModels;
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using BTCPayServer.Security;
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using BTCPayServer.Services;
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using BTCPayServer.Services.Rates;
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using BTCPayServer.Services.Stores;
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using BTCPayServer.Services.Wallets;
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using LedgerWallet;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Identity;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Options;
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using NBitcoin;
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using NBXplorer.DerivationStrategy;
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using NBXplorer.Models;
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using Newtonsoft.Json;
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using static BTCPayServer.Controllers.StoresController;
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namespace BTCPayServer.Controllers
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{
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[Route("wallets")]
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[Authorize(AuthenticationSchemes = Policies.CookieAuthentication)]
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[AutoValidateAntiforgeryToken]
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public partial class WalletsController : Controller
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{
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public StoreRepository Repository { get; }
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public BTCPayNetworkProvider NetworkProvider { get; }
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public ExplorerClientProvider ExplorerClientProvider { get; }
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private readonly UserManager<ApplicationUser> _userManager;
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private readonly IOptions<MvcJsonOptions> _mvcJsonOptions;
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private readonly NBXplorerDashboard _dashboard;
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private readonly IFeeProviderFactory _feeRateProvider;
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private readonly BTCPayWalletProvider _walletProvider;
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public RateFetcher RateFetcher { get; }
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[TempData]
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public string StatusMessage { get; set; }
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CurrencyNameTable _currencyTable;
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public WalletsController(StoreRepository repo,
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CurrencyNameTable currencyTable,
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BTCPayNetworkProvider networkProvider,
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UserManager<ApplicationUser> userManager,
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IOptions<MvcJsonOptions> mvcJsonOptions,
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NBXplorerDashboard dashboard,
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RateFetcher rateProvider,
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ExplorerClientProvider explorerProvider,
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IFeeProviderFactory feeRateProvider,
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BTCPayWalletProvider walletProvider)
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{
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_currencyTable = currencyTable;
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Repository = repo;
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RateFetcher = rateProvider;
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NetworkProvider = networkProvider;
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_userManager = userManager;
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_mvcJsonOptions = mvcJsonOptions;
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_dashboard = dashboard;
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ExplorerClientProvider = explorerProvider;
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_feeRateProvider = feeRateProvider;
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_walletProvider = walletProvider;
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}
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public async Task<IActionResult> ListWallets()
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{
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var wallets = new ListWalletsViewModel();
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var stores = await Repository.GetStoresByUserId(GetUserId());
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var onChainWallets = stores
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.SelectMany(s => s.GetSupportedPaymentMethods(NetworkProvider)
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.OfType<DerivationStrategy>()
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.Select(d => ((Wallet: _walletProvider.GetWallet(d.Network),
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DerivationStrategy: d.DerivationStrategyBase,
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Network: d.Network)))
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.Where(_ => _.Wallet != null)
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.Select(_ => (Wallet: _.Wallet,
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Store: s,
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Balance: GetBalanceString(_.Wallet, _.DerivationStrategy),
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DerivationStrategy: _.DerivationStrategy,
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Network: _.Network)))
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.ToList();
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foreach (var wallet in onChainWallets)
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{
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ListWalletsViewModel.WalletViewModel walletVm = new ListWalletsViewModel.WalletViewModel();
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wallets.Wallets.Add(walletVm);
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walletVm.Balance = await wallet.Balance + " " + wallet.Wallet.Network.CryptoCode;
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if (!wallet.Store.HasClaim(Policies.CanModifyStoreSettings.Key))
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{
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walletVm.Balance = "";
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}
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walletVm.CryptoCode = wallet.Network.CryptoCode;
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walletVm.StoreId = wallet.Store.Id;
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walletVm.Id = new WalletId(wallet.Store.Id, wallet.Network.CryptoCode);
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walletVm.StoreName = wallet.Store.StoreName;
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walletVm.IsOwner = wallet.Store.HasClaim(Policies.CanModifyStoreSettings.Key);
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}
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return View(wallets);
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}
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[HttpGet]
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[Route("{walletId}")]
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public async Task<IActionResult> WalletTransactions(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId)
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{
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var store = await Repository.FindStore(walletId.StoreId, GetUserId());
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DerivationStrategy paymentMethod = GetPaymentMethod(walletId, store);
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if (paymentMethod == null)
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return NotFound();
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var wallet = _walletProvider.GetWallet(paymentMethod.Network);
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var transactions = await wallet.FetchTransactions(paymentMethod.DerivationStrategyBase);
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var model = new ListTransactionsViewModel();
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foreach (var tx in transactions.UnconfirmedTransactions.Transactions.Concat(transactions.ConfirmedTransactions.Transactions))
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{
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var vm = new ListTransactionsViewModel.TransactionViewModel();
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model.Transactions.Add(vm);
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vm.Id = tx.TransactionId.ToString();
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vm.Link = string.Format(CultureInfo.InvariantCulture, paymentMethod.Network.BlockExplorerLink, vm.Id);
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vm.Timestamp = tx.Timestamp;
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vm.Positive = tx.BalanceChange >= Money.Zero;
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vm.Balance = tx.BalanceChange.ToString();
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vm.IsConfirmed = tx.Confirmations != 0;
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}
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model.Transactions = model.Transactions.OrderByDescending(t => t.Timestamp).ToList();
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return View(model);
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}
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[HttpGet]
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[Route("{walletId}/send")]
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public async Task<IActionResult> WalletSend(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId, string defaultDestination = null, string defaultAmount = null, bool advancedMode = false)
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{
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if (walletId?.StoreId == null)
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return NotFound();
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var store = await Repository.FindStore(walletId.StoreId, GetUserId());
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DerivationStrategy paymentMethod = GetPaymentMethod(walletId, store);
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if (paymentMethod == null)
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return NotFound();
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var network = this.NetworkProvider.GetNetwork(walletId?.CryptoCode);
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if (network == null)
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return NotFound();
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var storeData = store.GetStoreBlob();
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var rateRules = store.GetStoreBlob().GetRateRules(NetworkProvider);
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rateRules.Spread = 0.0m;
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var currencyPair = new Rating.CurrencyPair(paymentMethod.PaymentId.CryptoCode, GetCurrencyCode(storeData.DefaultLang) ?? "USD");
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WalletSendModel model = new WalletSendModel()
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{
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Destination = defaultDestination,
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CryptoCode = walletId.CryptoCode
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};
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if (double.TryParse(defaultAmount, out var amount))
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model.Amount = (decimal)amount;
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var feeProvider = _feeRateProvider.CreateFeeProvider(network);
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var recommendedFees = feeProvider.GetFeeRateAsync();
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var balance = _walletProvider.GetWallet(network).GetBalance(paymentMethod.DerivationStrategyBase);
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model.CurrentBalance = (await balance).ToDecimal(MoneyUnit.BTC);
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model.RecommendedSatoshiPerByte = (int)(await recommendedFees).GetFee(1).Satoshi;
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model.FeeSatoshiPerByte = model.RecommendedSatoshiPerByte;
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using (CancellationTokenSource cts = new CancellationTokenSource())
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{
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try
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{
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cts.CancelAfter(TimeSpan.FromSeconds(5));
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var result = await RateFetcher.FetchRate(currencyPair, rateRules, cts.Token).WithCancellation(cts.Token);
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if (result.BidAsk != null)
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{
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model.Rate = result.BidAsk.Center;
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model.Divisibility = _currencyTable.GetNumberFormatInfo(currencyPair.Right, true).CurrencyDecimalDigits;
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model.Fiat = currencyPair.Right;
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}
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else
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{
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model.RateError = $"{result.EvaluatedRule} ({string.Join(", ", result.Errors.OfType<object>().ToArray())})";
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}
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}
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catch (Exception ex) { model.RateError = ex.Message; }
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}
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model.AdvancedMode = advancedMode;
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return View(model);
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}
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[HttpPost]
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[Route("{walletId}/send")]
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public async Task<IActionResult> WalletSend(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId, WalletSendModel vm, string command = null)
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{
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if (walletId?.StoreId == null)
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return NotFound();
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var store = await Repository.FindStore(walletId.StoreId, GetUserId());
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if (store == null)
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return NotFound();
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var network = this.NetworkProvider.GetNetwork(walletId?.CryptoCode);
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if (network == null)
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return NotFound();
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if (command == "noob" || command == "expert")
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{
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ModelState.Clear();
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vm.AdvancedMode = command == "expert";
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return View(vm);
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}
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var destination = ParseDestination(vm.Destination, network.NBitcoinNetwork);
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if (destination == null)
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ModelState.AddModelError(nameof(vm.Destination), "Invalid address");
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if (vm.Amount.HasValue)
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{
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if (vm.CurrentBalance == vm.Amount.Value && !vm.SubstractFees)
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ModelState.AddModelError(nameof(vm.Amount), "You are sending all your balance to the same destination, you should substract the fees");
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if (vm.CurrentBalance < vm.Amount.Value)
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ModelState.AddModelError(nameof(vm.Amount), "You are sending more than what you own");
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}
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if (!ModelState.IsValid)
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return View(vm);
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return RedirectToAction(nameof(WalletSendLedger), new WalletSendLedgerModel()
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{
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Destination = vm.Destination,
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Amount = vm.Amount.Value,
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SubstractFees = vm.SubstractFees,
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FeeSatoshiPerByte = vm.FeeSatoshiPerByte,
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NoChange = vm.NoChange
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});
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}
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[HttpGet]
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[Route("{walletId}/send/ledger")]
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public async Task<IActionResult> WalletSendLedger(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId, WalletSendLedgerModel vm)
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{
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if (walletId?.StoreId == null)
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return NotFound();
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var store = await Repository.FindStore(walletId.StoreId, GetUserId());
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DerivationStrategy paymentMethod = GetPaymentMethod(walletId, store);
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if (paymentMethod == null)
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return NotFound();
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var network = this.NetworkProvider.GetNetwork(walletId?.CryptoCode);
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if (network == null)
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return NotFound();
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return View(vm);
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}
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private IDestination[] ParseDestination(string destination, Network network)
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{
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try
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{
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destination = destination?.Trim();
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return new IDestination[] { BitcoinAddress.Create(destination, network) };
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}
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catch
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{
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return null;
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}
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}
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[HttpGet]
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[Route("{walletId}/rescan")]
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public async Task<IActionResult> WalletRescan(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId)
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{
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if (walletId?.StoreId == null)
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return NotFound();
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var store = await Repository.FindStore(walletId.StoreId, GetUserId());
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DerivationStrategy paymentMethod = GetPaymentMethod(walletId, store);
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if (paymentMethod == null)
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return NotFound();
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var vm = new RescanWalletModel();
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vm.IsFullySync = _dashboard.IsFullySynched(walletId.CryptoCode, out var unused);
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// We need to ensure it is segwit,
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// because hardware wallet support need the parent transactions to sign, which NBXplorer don't have. (Nor does a pruned node)
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vm.IsSegwit = paymentMethod.DerivationStrategyBase.IsSegwit();
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vm.IsServerAdmin = User.Claims.Any(c => c.Type == Policies.CanModifyServerSettings.Key && c.Value == "true");
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vm.IsSupportedByCurrency = _dashboard.Get(walletId.CryptoCode)?.Status?.BitcoinStatus?.Capabilities?.CanScanTxoutSet == true;
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var explorer = ExplorerClientProvider.GetExplorerClient(walletId.CryptoCode);
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var scanProgress = await explorer.GetScanUTXOSetInformationAsync(paymentMethod.DerivationStrategyBase);
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if (scanProgress != null)
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{
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vm.PreviousError = scanProgress.Error;
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if (scanProgress.Status == ScanUTXOStatus.Queued || scanProgress.Status == ScanUTXOStatus.Pending)
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{
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if (scanProgress.Progress == null)
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{
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vm.Progress = 0;
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}
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else
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{
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vm.Progress = scanProgress.Progress.OverallProgress;
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vm.RemainingTime = TimeSpan.FromSeconds(scanProgress.Progress.RemainingSeconds).PrettyPrint();
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}
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}
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if (scanProgress.Status == ScanUTXOStatus.Complete)
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{
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vm.LastSuccess = scanProgress.Progress;
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vm.TimeOfScan = (scanProgress.Progress.CompletedAt.Value - scanProgress.Progress.StartedAt).PrettyPrint();
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}
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}
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return View(vm);
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}
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[HttpPost]
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[Route("{walletId}/rescan")]
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[Authorize(Policy = Policies.CanModifyServerSettings.Key)]
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public async Task<IActionResult> WalletRescan(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId, RescanWalletModel vm)
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{
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if (walletId?.StoreId == null)
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return NotFound();
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var store = await Repository.FindStore(walletId.StoreId, GetUserId());
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DerivationStrategy paymentMethod = GetPaymentMethod(walletId, store);
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if (paymentMethod == null)
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return NotFound();
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var explorer = ExplorerClientProvider.GetExplorerClient(walletId.CryptoCode);
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try
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{
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await explorer.ScanUTXOSetAsync(paymentMethod.DerivationStrategyBase, vm.BatchSize, vm.GapLimit, vm.StartingIndex);
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}
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catch (NBXplorerException ex) when (ex.Error.Code == "scanutxoset-in-progress")
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{
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}
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return RedirectToAction();
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}
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private string GetCurrencyCode(string defaultLang)
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{
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if (defaultLang == null)
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return null;
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try
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{
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var ri = new RegionInfo(defaultLang);
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return ri.ISOCurrencySymbol;
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}
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catch (ArgumentException) { }
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return null;
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}
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private DerivationStrategy GetPaymentMethod(WalletId walletId, StoreData store)
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{
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if (store == null || !store.HasClaim(Policies.CanModifyStoreSettings.Key))
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return null;
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var paymentMethod = store
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.GetSupportedPaymentMethods(NetworkProvider)
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.OfType<DerivationStrategy>()
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.FirstOrDefault(p => p.PaymentId.PaymentType == Payments.PaymentTypes.BTCLike && p.PaymentId.CryptoCode == walletId.CryptoCode);
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return paymentMethod;
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}
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private static async Task<string> GetBalanceString(BTCPayWallet wallet, DerivationStrategyBase derivationStrategy)
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{
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using (CancellationTokenSource cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)))
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{
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try
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{
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return (await wallet.GetBalance(derivationStrategy, cts.Token)).ToString();
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}
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catch
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{
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return "--";
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}
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}
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}
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private string GetUserId()
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{
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return _userManager.GetUserId(User);
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}
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[HttpGet]
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[Route("{walletId}/send/ledger/success")]
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public IActionResult WalletSendLedgerSuccess(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId,
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string txid)
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{
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StatusMessage = $"Transaction broadcasted ({txid})";
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return RedirectToAction(nameof(this.WalletTransactions), new { walletId = walletId.ToString() });
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}
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[HttpGet]
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[Route("{walletId}/send/ledger/ws")]
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public async Task<IActionResult> LedgerConnection(
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[ModelBinder(typeof(WalletIdModelBinder))]
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WalletId walletId,
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string command,
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// getinfo
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// getxpub
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int account = 0,
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// sendtoaddress
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bool noChange = false,
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string destination = null, string amount = null, string feeRate = null, string substractFees = null
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)
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{
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if (!HttpContext.WebSockets.IsWebSocketRequest)
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return NotFound();
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var cryptoCode = walletId.CryptoCode;
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var storeData = (await Repository.FindStore(walletId.StoreId, GetUserId()));
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var derivationScheme = GetPaymentMethod(walletId, storeData).DerivationStrategyBase;
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var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
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using (var normalOperationTimeout = new CancellationTokenSource())
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using (var signTimeout = new CancellationTokenSource())
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{
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normalOperationTimeout.CancelAfter(TimeSpan.FromMinutes(30));
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var hw = new HardwareWalletService(webSocket);
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object result = null;
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try
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{
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BTCPayNetwork network = null;
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if (cryptoCode != null)
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{
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network = NetworkProvider.GetNetwork(cryptoCode);
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if (network == null)
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throw new FormatException("Invalid value for crypto code");
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}
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BitcoinAddress destinationAddress = null;
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if (destination != null)
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{
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try
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{
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destinationAddress = BitcoinAddress.Create(destination.Trim(), network.NBitcoinNetwork);
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}
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catch { }
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if (destinationAddress == null)
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throw new FormatException("Invalid value for destination");
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}
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FeeRate feeRateValue = null;
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if (feeRate != null)
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{
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try
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{
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feeRateValue = new FeeRate(Money.Satoshis(int.Parse(feeRate, CultureInfo.InvariantCulture)), 1);
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}
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catch { }
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if (feeRateValue == null || feeRateValue.FeePerK <= Money.Zero)
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throw new FormatException("Invalid value for fee rate");
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}
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Money amountBTC = null;
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if (amount != null)
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{
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try
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{
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amountBTC = Money.Parse(amount);
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}
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catch { }
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if (amountBTC == null || amountBTC <= Money.Zero)
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throw new FormatException("Invalid value for amount");
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}
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bool subsctractFeesValue = false;
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if (substractFees != null)
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{
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try
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{
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subsctractFeesValue = bool.Parse(substractFees);
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}
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catch { throw new FormatException("Invalid value for subtract fees"); }
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}
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if (command == "test")
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{
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result = await hw.Test(normalOperationTimeout.Token);
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}
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if (command == "sendtoaddress")
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{
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if (!_dashboard.IsFullySynched(network.CryptoCode, out var summary))
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throw new Exception($"{network.CryptoCode}: not started or fully synched");
|
|
var strategy = GetDirectDerivationStrategy(derivationScheme);
|
|
var wallet = _walletProvider.GetWallet(network);
|
|
var change = wallet.GetChangeAddressAsync(derivationScheme);
|
|
var keypaths = new Dictionary<Script, KeyPath>();
|
|
List<Coin> availableCoins = new List<Coin>();
|
|
foreach (var c in await wallet.GetUnspentCoins(derivationScheme))
|
|
{
|
|
keypaths.TryAdd(c.Coin.ScriptPubKey, c.KeyPath);
|
|
availableCoins.Add(c.Coin);
|
|
}
|
|
|
|
var changeAddress = await change;
|
|
|
|
var storeBlob = storeData.GetStoreBlob();
|
|
var paymentId = new Payments.PaymentMethodId(cryptoCode, Payments.PaymentTypes.BTCLike);
|
|
var foundKeyPath = storeBlob.GetWalletKeyPathRoot(paymentId);
|
|
// Some deployment have the wallet root key path saved in the store blob
|
|
// If it does, we only have to make 1 call to the hw to check if it can sign the given strategy,
|
|
if (foundKeyPath == null || !await hw.CanSign(network, strategy, foundKeyPath, normalOperationTimeout.Token))
|
|
{
|
|
// If the saved wallet key path is not present or incorrect, let's scan the wallet to see if it can sign strategy
|
|
foundKeyPath = await hw.FindKeyPath(network, strategy, normalOperationTimeout.Token);
|
|
if (foundKeyPath == null)
|
|
throw new HardwareWalletException($"This store is not configured to use this ledger");
|
|
storeBlob.SetWalletKeyPathRoot(paymentId, foundKeyPath);
|
|
storeData.SetStoreBlob(storeBlob);
|
|
await Repository.UpdateStore(storeData);
|
|
}
|
|
retry:
|
|
var send = new[] { (
|
|
destination: destinationAddress as IDestination,
|
|
amount: amountBTC,
|
|
substractFees: subsctractFeesValue) };
|
|
|
|
foreach (var element in send)
|
|
{
|
|
if (element.destination == null)
|
|
throw new ArgumentNullException(nameof(element.destination));
|
|
if (element.amount == null)
|
|
throw new ArgumentNullException(nameof(element.amount));
|
|
if (element.amount <= Money.Zero)
|
|
throw new ArgumentOutOfRangeException(nameof(element.amount), "The amount should be above zero");
|
|
}
|
|
|
|
TransactionBuilder builder = network.NBitcoinNetwork.CreateTransactionBuilder();
|
|
builder.StandardTransactionPolicy.MinRelayTxFee = summary.Status.BitcoinStatus.MinRelayTxFee;
|
|
builder.AddCoins(availableCoins);
|
|
|
|
foreach (var element in send)
|
|
{
|
|
builder.Send(element.destination, element.amount);
|
|
if (element.substractFees)
|
|
builder.SubtractFees();
|
|
}
|
|
|
|
builder.SetChange(changeAddress.Item1);
|
|
|
|
if (network.MinFee == null)
|
|
{
|
|
builder.SendEstimatedFees(feeRateValue);
|
|
}
|
|
else
|
|
{
|
|
var estimatedFee = builder.EstimateFees(feeRateValue);
|
|
if (network.MinFee > estimatedFee)
|
|
builder.SendFees(network.MinFee);
|
|
else
|
|
builder.SendEstimatedFees(feeRateValue);
|
|
}
|
|
var unsigned = builder.BuildTransaction(false);
|
|
|
|
var hasChange = unsigned.Outputs.Any(o => o.ScriptPubKey == changeAddress.Item1.ScriptPubKey);
|
|
if (noChange && hasChange)
|
|
{
|
|
availableCoins = builder.FindSpentCoins(unsigned).Cast<Coin>().ToList();
|
|
amountBTC = builder.FindSpentCoins(unsigned).Select(c => c.TxOut.Value).Sum();
|
|
subsctractFeesValue = true;
|
|
goto retry;
|
|
}
|
|
|
|
var usedCoins = builder.FindSpentCoins(unsigned);
|
|
|
|
Dictionary<uint256, Transaction> parentTransactions = new Dictionary<uint256, Transaction>();
|
|
|
|
if (!strategy.Segwit)
|
|
{
|
|
var parentHashes = usedCoins.Select(c => c.Outpoint.Hash).ToHashSet();
|
|
var explorer = ExplorerClientProvider.GetExplorerClient(network);
|
|
var getTransactionAsyncs = parentHashes.Select(h => (Op: explorer.GetTransactionAsync(h), Hash: h)).ToList();
|
|
foreach (var getTransactionAsync in getTransactionAsyncs)
|
|
{
|
|
var tx = (await getTransactionAsync.Op);
|
|
if (tx == null)
|
|
throw new Exception($"Parent transaction {getTransactionAsync.Hash} not found");
|
|
parentTransactions.Add(tx.Transaction.GetHash(), tx.Transaction);
|
|
}
|
|
}
|
|
|
|
|
|
signTimeout.CancelAfter(TimeSpan.FromMinutes(5));
|
|
var transaction = await hw.SignTransactionAsync(usedCoins.Select(c => new SignatureRequest
|
|
{
|
|
InputTransaction = parentTransactions.TryGet(c.Outpoint.Hash),
|
|
InputCoin = c,
|
|
KeyPath = foundKeyPath.Derive(keypaths[c.TxOut.ScriptPubKey]),
|
|
PubKey = strategy.Root.Derive(keypaths[c.TxOut.ScriptPubKey]).PubKey
|
|
}).ToArray(), unsigned, hasChange ? foundKeyPath.Derive(changeAddress.Item2) : null, signTimeout.Token);
|
|
try
|
|
{
|
|
var broadcastResult = await wallet.BroadcastTransactionsAsync(new List<Transaction>() { transaction });
|
|
if (!broadcastResult[0].Success)
|
|
{
|
|
throw new Exception($"RPC Error while broadcasting: {broadcastResult[0].RPCCode} {broadcastResult[0].RPCCodeMessage} {broadcastResult[0].RPCMessage}");
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw new Exception("Error while broadcasting: " + ex.Message);
|
|
}
|
|
wallet.InvalidateCache(derivationScheme);
|
|
result = new SendToAddressResult() { TransactionId = transaction.GetHash().ToString() };
|
|
}
|
|
}
|
|
catch (OperationCanceledException)
|
|
{ result = new LedgerTestResult() { Success = false, Error = "Timeout" }; }
|
|
catch (Exception ex)
|
|
{ result = new LedgerTestResult() { Success = false, Error = ex.Message }; }
|
|
finally { hw.Dispose(); }
|
|
try
|
|
{
|
|
if (result != null)
|
|
{
|
|
UTF8Encoding UTF8NOBOM = new UTF8Encoding(false);
|
|
var bytes = UTF8NOBOM.GetBytes(JsonConvert.SerializeObject(result, _mvcJsonOptions.Value.SerializerSettings));
|
|
await webSocket.SendAsync(new ArraySegment<byte>(bytes), WebSocketMessageType.Text, true, new CancellationTokenSource(2000).Token);
|
|
}
|
|
}
|
|
catch { }
|
|
finally
|
|
{
|
|
await webSocket.CloseSocket();
|
|
}
|
|
}
|
|
return new EmptyResult();
|
|
}
|
|
|
|
private DirectDerivationStrategy GetDirectDerivationStrategy(DerivationStrategyBase strategy)
|
|
{
|
|
if (strategy == null)
|
|
throw new Exception("The derivation scheme is not provided");
|
|
var directStrategy = strategy as DirectDerivationStrategy;
|
|
if (directStrategy == null)
|
|
directStrategy = (strategy as P2SHDerivationStrategy).Inner as DirectDerivationStrategy;
|
|
return directStrategy;
|
|
}
|
|
}
|
|
|
|
|
|
public class GetInfoResult
|
|
{
|
|
}
|
|
|
|
public class SendToAddressResult
|
|
{
|
|
public string TransactionId { get; set; }
|
|
}
|
|
}
|