btcpayserver/BTCPayServer/Controllers/WalletsController.cs
2019-10-31 14:11:33 +09:00

880 lines
41 KiB
C#

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Linq;
using System.Net.WebSockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using BTCPayServer.Data;
using BTCPayServer.HostedServices;
using BTCPayServer.ModelBinders;
using BTCPayServer.Models;
using BTCPayServer.Models.WalletViewModels;
using BTCPayServer.Security;
using BTCPayServer.Services;
using BTCPayServer.Services.Rates;
using BTCPayServer.Services.Stores;
using BTCPayServer.Services.Wallets;
using LedgerWallet;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore.Metadata.Internal;
using Microsoft.Extensions.Options;
using NBitcoin;
using NBitcoin.DataEncoders;
using NBXplorer.DerivationStrategy;
using NBXplorer.Models;
using Newtonsoft.Json;
using static BTCPayServer.Controllers.StoresController;
namespace BTCPayServer.Controllers
{
[Route("wallets")]
[Authorize(Policy = Policies.CanModifyStoreSettings.Key, AuthenticationSchemes = AuthenticationSchemes.Cookie)]
[AutoValidateAntiforgeryToken]
public partial class WalletsController : Controller
{
public StoreRepository Repository { get; }
public WalletRepository WalletRepository { get; }
public BTCPayNetworkProvider NetworkProvider { get; }
public ExplorerClientProvider ExplorerClientProvider { get; }
private readonly UserManager<ApplicationUser> _userManager;
private readonly JsonSerializerSettings _serializerSettings;
private readonly NBXplorerDashboard _dashboard;
private readonly IAuthorizationService _authorizationService;
private readonly IFeeProviderFactory _feeRateProvider;
private readonly BTCPayWalletProvider _walletProvider;
public RateFetcher RateFetcher { get; }
CurrencyNameTable _currencyTable;
public WalletsController(StoreRepository repo,
WalletRepository walletRepository,
CurrencyNameTable currencyTable,
BTCPayNetworkProvider networkProvider,
UserManager<ApplicationUser> userManager,
MvcNewtonsoftJsonOptions mvcJsonOptions,
NBXplorerDashboard dashboard,
RateFetcher rateProvider,
IAuthorizationService authorizationService,
ExplorerClientProvider explorerProvider,
IFeeProviderFactory feeRateProvider,
BTCPayWalletProvider walletProvider)
{
_currencyTable = currencyTable;
Repository = repo;
WalletRepository = walletRepository;
RateFetcher = rateProvider;
_authorizationService = authorizationService;
NetworkProvider = networkProvider;
_userManager = userManager;
_serializerSettings = mvcJsonOptions.SerializerSettings;
_dashboard = dashboard;
ExplorerClientProvider = explorerProvider;
_feeRateProvider = feeRateProvider;
_walletProvider = walletProvider;
}
// Borrowed from https://github.com/ManageIQ/guides/blob/master/labels.md
string[] LabelColorScheme = new string[]
{
"#fbca04",
"#0e8a16",
"#ff7619",
"#84b6eb",
"#5319e7",
"#000000",
"#cc317c",
};
const int MaxLabelSize = 20;
const int MaxCommentSize = 200;
[HttpPost]
[Route("{walletId}")]
public async Task<IActionResult> ModifyTransaction(
// We need addlabel and addlabelclick. addlabel is the + button if the label does not exists,
// addlabelclick is if the user click on existing label. For some reason, reusing the same name attribute for both
// does not work
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, string transactionId,
string addlabel = null,
string addlabelclick = null,
string addcomment = null,
string removelabel = null)
{
addlabel = addlabel ?? addlabelclick;
// Hack necessary when the user enter a empty comment and submit.
// For some reason asp.net consider addcomment null instead of empty string...
try
{
if (addcomment == null && Request?.Form?.TryGetValue(nameof(addcomment), out _) is true)
{
addcomment = string.Empty;
}
}
catch { }
/////////
DerivationSchemeSettings paymentMethod = GetDerivationSchemeSettings(walletId);
if (paymentMethod == null)
return NotFound();
var walletBlobInfoAsync = WalletRepository.GetWalletInfo(walletId);
var walletTransactionsInfoAsync = WalletRepository.GetWalletTransactionsInfo(walletId);
var wallet = _walletProvider.GetWallet(paymentMethod.Network);
var walletBlobInfo = await walletBlobInfoAsync;
var walletTransactionsInfo = await walletTransactionsInfoAsync;
if (addlabel != null)
{
addlabel = addlabel.Trim().ToLowerInvariant().Replace(',',' ').Truncate(MaxLabelSize);
var labels = walletBlobInfo.GetLabels();
if (!walletTransactionsInfo.TryGetValue(transactionId, out var walletTransactionInfo))
{
walletTransactionInfo = new WalletTransactionInfo();
}
if (!labels.Any(l => l.Value.Equals(addlabel, StringComparison.OrdinalIgnoreCase)))
{
List<string> allColors = new List<string>();
allColors.AddRange(LabelColorScheme);
allColors.AddRange(labels.Select(l => l.Color));
var chosenColor =
allColors
.GroupBy(k => k)
.OrderBy(k => k.Count())
.ThenBy(k => Array.IndexOf(LabelColorScheme, k.Key))
.First().Key;
walletBlobInfo.LabelColors.Add(addlabel, chosenColor);
await WalletRepository.SetWalletInfo(walletId, walletBlobInfo);
}
if (walletTransactionInfo.Labels.Add(addlabel))
{
await WalletRepository.SetWalletTransactionInfo(walletId, transactionId, walletTransactionInfo);
}
}
else if (removelabel != null)
{
removelabel = removelabel.Trim().ToLowerInvariant().Truncate(MaxLabelSize);
if (walletTransactionsInfo.TryGetValue(transactionId, out var walletTransactionInfo))
{
if (walletTransactionInfo.Labels.Remove(removelabel))
{
var canDelete = !walletTransactionsInfo.SelectMany(txi => txi.Value.Labels).Any(l => l == removelabel);
if (canDelete)
{
walletBlobInfo.LabelColors.Remove(removelabel);
await WalletRepository.SetWalletInfo(walletId, walletBlobInfo);
}
await WalletRepository.SetWalletTransactionInfo(walletId, transactionId, walletTransactionInfo);
}
}
}
else if (addcomment != null)
{
addcomment = addcomment.Trim().Truncate(MaxCommentSize);
if (!walletTransactionsInfo.TryGetValue(transactionId, out var walletTransactionInfo))
{
walletTransactionInfo = new WalletTransactionInfo();
}
walletTransactionInfo.Comment = addcomment;
await WalletRepository.SetWalletTransactionInfo(walletId, transactionId, walletTransactionInfo);
}
return RedirectToAction(nameof(WalletTransactions), new { walletId = walletId.ToString() });
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> ListWallets()
{
if (GetUserId() == null)
{
return Challenge(AuthenticationSchemes.Cookie);
}
var wallets = new ListWalletsViewModel();
var stores = await Repository.GetStoresByUserId(GetUserId());
var onChainWallets = stores
.SelectMany(s => s.GetSupportedPaymentMethods(NetworkProvider)
.OfType<DerivationSchemeSettings>()
.Select(d => ((Wallet: _walletProvider.GetWallet(d.Network),
DerivationStrategy: d.AccountDerivation,
Network: d.Network)))
.Where(_ => _.Wallet != null)
.Select(_ => (Wallet: _.Wallet,
Store: s,
Balance: GetBalanceString(_.Wallet, _.DerivationStrategy),
DerivationStrategy: _.DerivationStrategy,
Network: _.Network)))
.ToList();
foreach (var wallet in onChainWallets)
{
ListWalletsViewModel.WalletViewModel walletVm = new ListWalletsViewModel.WalletViewModel();
wallets.Wallets.Add(walletVm);
walletVm.Balance = await wallet.Balance + " " + wallet.Wallet.Network.CryptoCode;
walletVm.IsOwner = wallet.Store.Role == StoreRoles.Owner;
if (!walletVm.IsOwner)
{
walletVm.Balance = "";
}
walletVm.CryptoCode = wallet.Network.CryptoCode;
walletVm.StoreId = wallet.Store.Id;
walletVm.Id = new WalletId(wallet.Store.Id, wallet.Network.CryptoCode);
walletVm.StoreName = wallet.Store.StoreName;
}
return View(wallets);
}
[HttpGet]
[Route("{walletId}")]
public async Task<IActionResult> WalletTransactions(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, string labelFilter = null)
{
DerivationSchemeSettings paymentMethod = GetDerivationSchemeSettings(walletId);
if (paymentMethod == null)
return NotFound();
var wallet = _walletProvider.GetWallet(paymentMethod.Network);
var walletBlobAsync = WalletRepository.GetWalletInfo(walletId);
var walletTransactionsInfoAsync = WalletRepository.GetWalletTransactionsInfo(walletId);
var transactions = await wallet.FetchTransactions(paymentMethod.AccountDerivation);
var walletBlob = await walletBlobAsync;
var walletTransactionsInfo = await walletTransactionsInfoAsync;
var model = new ListTransactionsViewModel();
foreach (var tx in transactions.UnconfirmedTransactions.Transactions.Concat(transactions.ConfirmedTransactions.Transactions).ToArray())
{
var vm = new ListTransactionsViewModel.TransactionViewModel();
vm.Id = tx.TransactionId.ToString();
vm.Link = string.Format(CultureInfo.InvariantCulture, paymentMethod.Network.BlockExplorerLink, vm.Id);
vm.Timestamp = tx.Timestamp;
vm.Positive = tx.BalanceChange >= Money.Zero;
vm.Balance = tx.BalanceChange.ToString();
vm.IsConfirmed = tx.Confirmations != 0;
if (walletTransactionsInfo.TryGetValue(tx.TransactionId.ToString(), out var transactionInfo))
{
var labels = walletBlob.GetLabels(transactionInfo);
vm.Labels.AddRange(labels);
model.Labels.AddRange(labels);
vm.Comment = transactionInfo.Comment;
}
if (labelFilter == null || vm.Labels.Any(l => l.Value.Equals(labelFilter, StringComparison.OrdinalIgnoreCase)))
model.Transactions.Add(vm);
}
model.Transactions = model.Transactions.OrderByDescending(t => t.Timestamp).ToList();
return View(model);
}
private static string GetLabelTarget(WalletId walletId, uint256 txId)
{
return $"{walletId}:{txId}";
}
[HttpGet]
[Route("{walletId}/send")]
public async Task<IActionResult> WalletSend(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, string defaultDestination = null, string defaultAmount = null)
{
if (walletId?.StoreId == null)
return NotFound();
var store = await Repository.FindStore(walletId.StoreId, GetUserId());
DerivationSchemeSettings paymentMethod = GetDerivationSchemeSettings(walletId);
if (paymentMethod == null)
return NotFound();
var network = this.NetworkProvider.GetNetwork<BTCPayNetwork>(walletId?.CryptoCode);
if (network == null)
return NotFound();
var storeData = store.GetStoreBlob();
var rateRules = store.GetStoreBlob().GetRateRules(NetworkProvider);
rateRules.Spread = 0.0m;
var currencyPair = new Rating.CurrencyPair(paymentMethod.PaymentId.CryptoCode, GetCurrencyCode(storeData.DefaultLang) ?? "USD");
double.TryParse(defaultAmount, out var amount);
var model = new WalletSendModel()
{
Outputs = new List<WalletSendModel.TransactionOutput>()
{
new WalletSendModel.TransactionOutput()
{
Amount = Convert.ToDecimal(amount),
DestinationAddress = defaultDestination
}
},
CryptoCode = walletId.CryptoCode
};
var feeProvider = _feeRateProvider.CreateFeeProvider(network);
var recommendedFees = feeProvider.GetFeeRateAsync();
var balance = _walletProvider.GetWallet(network).GetBalance(paymentMethod.AccountDerivation);
model.CurrentBalance = (await balance).ToDecimal(MoneyUnit.BTC);
model.RecommendedSatoshiPerByte = (int)(await recommendedFees).GetFee(1).Satoshi;
model.FeeSatoshiPerByte = model.RecommendedSatoshiPerByte;
model.SupportRBF = network.SupportRBF;
using (CancellationTokenSource cts = new CancellationTokenSource())
{
try
{
cts.CancelAfter(TimeSpan.FromSeconds(5));
var result = await RateFetcher.FetchRate(currencyPair, rateRules, cts.Token).WithCancellation(cts.Token);
if (result.BidAsk != null)
{
model.Rate = result.BidAsk.Center;
model.Divisibility = _currencyTable.GetNumberFormatInfo(currencyPair.Right, true).CurrencyDecimalDigits;
model.Fiat = currencyPair.Right;
}
else
{
model.RateError = $"{result.EvaluatedRule} ({string.Join(", ", result.Errors.OfType<object>().ToArray())})";
}
}
catch (Exception ex) { model.RateError = ex.Message; }
}
return View(model);
}
[HttpPost]
[Route("{walletId}/send")]
public async Task<IActionResult> WalletSend(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, WalletSendModel vm, string command = "", CancellationToken cancellation = default)
{
if (walletId?.StoreId == null)
return NotFound();
var store = await Repository.FindStore(walletId.StoreId, GetUserId());
if (store == null)
return NotFound();
var network = this.NetworkProvider.GetNetwork<BTCPayNetwork>(walletId?.CryptoCode);
if (network == null)
return NotFound();
vm.SupportRBF = network.SupportRBF;
decimal transactionAmountSum = 0;
if (command == "add-output")
{
ModelState.Clear();
vm.Outputs.Add(new WalletSendModel.TransactionOutput());
return View(vm);
}
if (command.StartsWith("remove-output", StringComparison.InvariantCultureIgnoreCase))
{
ModelState.Clear();
var index = int.Parse(command.Substring(command.IndexOf(":",StringComparison.InvariantCultureIgnoreCase) + 1), CultureInfo.InvariantCulture);
vm.Outputs.RemoveAt(index);
return View(vm);
}
if (!vm.Outputs.Any())
{
ModelState.AddModelError(string.Empty,
"Please add at least one transaction output");
return View(vm);
}
var subtractFeesOutputsCount = new List<int>();
var substractFees = vm.Outputs.Any(o => o.SubtractFeesFromOutput);
for (var i = 0; i < vm.Outputs.Count; i++)
{
var transactionOutput = vm.Outputs[i];
if (transactionOutput.SubtractFeesFromOutput)
{
subtractFeesOutputsCount.Add(i);
}
var destination = ParseDestination(transactionOutput.DestinationAddress, network.NBitcoinNetwork);
if (destination == null)
ModelState.AddModelError(nameof(transactionOutput.DestinationAddress), "Invalid address");
if (transactionOutput.Amount.HasValue)
{
transactionAmountSum += transactionOutput.Amount.Value;
if (vm.CurrentBalance == transactionOutput.Amount.Value &&
!transactionOutput.SubtractFeesFromOutput)
vm.AddModelError(model => model.Outputs[i].SubtractFeesFromOutput,
"You are sending your entire balance to the same destination, you should subtract the fees",
this);
}
}
if (subtractFeesOutputsCount.Count > 1)
{
foreach (var subtractFeesOutput in subtractFeesOutputsCount)
{
vm.AddModelError(model => model.Outputs[subtractFeesOutput].SubtractFeesFromOutput,
"You can only subtract fees from one output", this);
}
}else if (vm.CurrentBalance == transactionAmountSum && !substractFees)
{
ModelState.AddModelError(string.Empty,
"You are sending your entire balance, you should subtract the fees from an output");
}
if (vm.CurrentBalance < transactionAmountSum)
{
for (var i = 0; i < vm.Outputs.Count; i++)
{
vm.AddModelError(model => model.Outputs[i].Amount,
"You are sending more than what you own", this);
}
}
if (!ModelState.IsValid)
return View(vm);
DerivationSchemeSettings derivationScheme = GetDerivationSchemeSettings(walletId);
CreatePSBTResponse psbt = null;
try
{
psbt = await CreatePSBT(network, derivationScheme, vm, cancellation);
}
catch (NBXplorerException ex)
{
ModelState.AddModelError(string.Empty, ex.Error.Message);
return View(vm);
}
catch (NotSupportedException)
{
ModelState.AddModelError(string.Empty, "You need to update your version of NBXplorer");
return View(vm);
}
derivationScheme.RebaseKeyPaths(psbt.PSBT);
switch (command)
{
case "ledger":
return ViewWalletSendLedger(psbt.PSBT, psbt.ChangeAddress);
case "seed":
return SignWithSeed(walletId, psbt.PSBT.ToBase64());
case "analyze-psbt":
var name =
$"Send-{string.Join('_', vm.Outputs.Select(output => $"{output.Amount}->{output.DestinationAddress}{(output.SubtractFeesFromOutput ? "-Fees" : string.Empty)}"))}.psbt";
return RedirectToAction(nameof(WalletPSBT), new { walletId = walletId, psbt = psbt.PSBT.ToBase64(), FileName = name });
default:
return View(vm);
}
}
private ViewResult ViewWalletSendLedger(PSBT psbt, BitcoinAddress hintChange = null)
{
return View("WalletSendLedger", new WalletSendLedgerModel()
{
PSBT = psbt.ToBase64(),
HintChange = hintChange?.ToString(),
WebsocketPath = this.Url.Action(nameof(LedgerConnection)),
SuccessPath = this.Url.Action(nameof(WalletPSBTReady))
});
}
[HttpGet("{walletId}/psbt/seed")]
public IActionResult SignWithSeed([ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId,string psbt)
{
return View(nameof(SignWithSeed), new SignWithSeedViewModel()
{
PSBT = psbt
});
}
[HttpPost("{walletId}/psbt/seed")]
public async Task<IActionResult> SignWithSeed([ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, SignWithSeedViewModel viewModel)
{
if (!ModelState.IsValid)
{
return View(viewModel);
}
var network = NetworkProvider.GetNetwork<BTCPayNetwork>(walletId.CryptoCode);
if (network == null)
throw new FormatException("Invalid value for crypto code");
ExtKey extKey = viewModel.GetExtKey(network.NBitcoinNetwork);
if (extKey == null)
{
ModelState.AddModelError(nameof(viewModel.SeedOrKey),
"Seed or Key was not in a valid format. It is either the 12/24 words or starts with xprv");
}
var psbt = PSBT.Parse(viewModel.PSBT, network.NBitcoinNetwork);
if (!psbt.IsReadyToSign())
{
ModelState.AddModelError(nameof(viewModel.PSBT), "PSBT is not ready to be signed");
}
if (!ModelState.IsValid)
{
return View(viewModel);
}
ExtKey signingKey = null;
var settings = GetDerivationSchemeSettings(walletId);
var signingKeySettings = settings.GetSigningAccountKeySettings();
if (signingKeySettings.RootFingerprint is null)
signingKeySettings.RootFingerprint = extKey.GetPublicKey().GetHDFingerPrint();
RootedKeyPath rootedKeyPath = signingKeySettings.GetRootedKeyPath();
// The user gave the root key, let's try to rebase the PSBT, and derive the account private key
if (rootedKeyPath?.MasterFingerprint == extKey.GetPublicKey().GetHDFingerPrint())
{
psbt.RebaseKeyPaths(signingKeySettings.AccountKey, rootedKeyPath);
signingKey = extKey.Derive(rootedKeyPath.KeyPath);
}
// The user maybe gave the account key, let's try to sign with it
else
{
signingKey = extKey;
}
var balanceChange = psbt.GetBalance(settings.AccountDerivation, signingKey, rootedKeyPath);
if (balanceChange == Money.Zero)
{
ModelState.AddModelError(nameof(viewModel.SeedOrKey), "This seed is unable to sign this transaction. Either the seed is incorrect, or the account path has not been properly configured in the Wallet Settings.");
return View(viewModel);
}
psbt.SignAll(settings.AccountDerivation, signingKey, rootedKeyPath);
ModelState.Remove(nameof(viewModel.PSBT));
return await WalletPSBTReady(walletId, psbt.ToBase64(), signingKey.GetWif(network.NBitcoinNetwork).ToString(), rootedKeyPath?.ToString());
}
private string ValueToString(Money v, BTCPayNetworkBase network)
{
return v.ToString() + " " + network.CryptoCode;
}
private IDestination[] ParseDestination(string destination, Network network)
{
try
{
destination = destination?.Trim();
return new IDestination[] { BitcoinAddress.Create(destination, network) };
}
catch
{
return null;
}
}
private IActionResult RedirectToWalletTransaction(WalletId walletId, Transaction transaction)
{
var network = NetworkProvider.GetNetwork<BTCPayNetwork>(walletId.CryptoCode);
if (transaction != null)
{
var wallet = _walletProvider.GetWallet(network);
var derivationSettings = GetDerivationSchemeSettings(walletId);
wallet.InvalidateCache(derivationSettings.AccountDerivation);
TempData[WellKnownTempData.SuccessMessage] = $"Transaction broadcasted successfully ({transaction.GetHash().ToString()})";
}
return RedirectToAction(nameof(WalletTransactions), new { walletId = walletId.ToString() });
}
[HttpGet]
[Route("{walletId}/rescan")]
public async Task<IActionResult> WalletRescan(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId)
{
if (walletId?.StoreId == null)
return NotFound();
DerivationSchemeSettings paymentMethod = GetDerivationSchemeSettings(walletId);
if (paymentMethod == null)
return NotFound();
var vm = new RescanWalletModel();
vm.IsFullySync = _dashboard.IsFullySynched(walletId.CryptoCode, out var unused);
vm.IsServerAdmin = (await _authorizationService.AuthorizeAsync(User, Policies.CanModifyServerSettings.Key)).Succeeded;
vm.IsSupportedByCurrency = _dashboard.Get(walletId.CryptoCode)?.Status?.BitcoinStatus?.Capabilities?.CanScanTxoutSet == true;
var explorer = ExplorerClientProvider.GetExplorerClient(walletId.CryptoCode);
var scanProgress = await explorer.GetScanUTXOSetInformationAsync(paymentMethod.AccountDerivation);
if (scanProgress != null)
{
vm.PreviousError = scanProgress.Error;
if (scanProgress.Status == ScanUTXOStatus.Queued || scanProgress.Status == ScanUTXOStatus.Pending)
{
if (scanProgress.Progress == null)
{
vm.Progress = 0;
}
else
{
vm.Progress = scanProgress.Progress.OverallProgress;
vm.RemainingTime = TimeSpan.FromSeconds(scanProgress.Progress.RemainingSeconds).PrettyPrint();
}
}
if (scanProgress.Status == ScanUTXOStatus.Complete)
{
vm.LastSuccess = scanProgress.Progress;
vm.TimeOfScan = (scanProgress.Progress.CompletedAt.Value - scanProgress.Progress.StartedAt).PrettyPrint();
}
}
return View(vm);
}
[HttpPost]
[Route("{walletId}/rescan")]
[Authorize(Policy = Policies.CanModifyServerSettings.Key, AuthenticationSchemes = AuthenticationSchemes.Cookie)]
public async Task<IActionResult> WalletRescan(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, RescanWalletModel vm)
{
if (walletId?.StoreId == null)
return NotFound();
DerivationSchemeSettings paymentMethod = GetDerivationSchemeSettings(walletId);
if (paymentMethod == null)
return NotFound();
var explorer = ExplorerClientProvider.GetExplorerClient(walletId.CryptoCode);
try
{
await explorer.ScanUTXOSetAsync(paymentMethod.AccountDerivation, vm.BatchSize, vm.GapLimit, vm.StartingIndex);
}
catch (NBXplorerException ex) when (ex.Error.Code == "scanutxoset-in-progress")
{
}
return RedirectToAction();
}
private string GetCurrencyCode(string defaultLang)
{
if (defaultLang == null)
return null;
try
{
var ri = new RegionInfo(defaultLang);
return ri.ISOCurrencySymbol;
}
catch (ArgumentException) { }
return null;
}
public StoreData CurrentStore
{
get
{
return HttpContext.GetStoreData();
}
}
private DerivationSchemeSettings GetDerivationSchemeSettings(WalletId walletId)
{
var paymentMethod = CurrentStore
.GetSupportedPaymentMethods(NetworkProvider)
.OfType<DerivationSchemeSettings>()
.FirstOrDefault(p => p.PaymentId.PaymentType == Payments.PaymentTypes.BTCLike && p.PaymentId.CryptoCode == walletId.CryptoCode);
return paymentMethod;
}
private static async Task<string> GetBalanceString(BTCPayWallet wallet, DerivationStrategyBase derivationStrategy)
{
using (CancellationTokenSource cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)))
{
try
{
return (await wallet.GetBalance(derivationStrategy, cts.Token)).ToString();
}
catch
{
return "--";
}
}
}
private string GetUserId()
{
return _userManager.GetUserId(User);
}
[HttpGet]
[Route("{walletId}/send/ledger/ws")]
public async Task<IActionResult> LedgerConnection(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId,
string command,
// getinfo
// getxpub
int account = 0,
// sendtoaddress
string psbt = null,
string hintChange = null
)
{
if (!HttpContext.WebSockets.IsWebSocketRequest)
return NotFound();
var storeData = CurrentStore;
var network = NetworkProvider.GetNetwork<BTCPayNetwork>(walletId.CryptoCode);
if (network == null)
throw new FormatException("Invalid value for crypto code");
var derivationSettings = GetDerivationSchemeSettings(walletId);
var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
using (var normalOperationTimeout = new CancellationTokenSource())
using (var signTimeout = new CancellationTokenSource())
{
normalOperationTimeout.CancelAfter(TimeSpan.FromMinutes(30));
var hw = new LedgerHardwareWalletService(webSocket);
var model = new WalletSendLedgerModel();
object result = null;
try
{
if (command == "test")
{
result = await hw.Test(normalOperationTimeout.Token);
}
if (command == "sendtoaddress")
{
if (!_dashboard.IsFullySynched(network.CryptoCode, out var summary))
throw new Exception($"{network.CryptoCode}: not started or fully synched");
var accountKey = derivationSettings.GetSigningAccountKeySettings();
// Some deployment does not have the AccountKeyPath set, let's fix this...
if (accountKey.AccountKeyPath == null)
{
// If the saved wallet key path is not present or incorrect, let's scan the wallet to see if it can sign strategy
var foundKeyPath = await hw.FindKeyPathFromDerivation(network,
derivationSettings.AccountDerivation,
normalOperationTimeout.Token);
accountKey.AccountKeyPath = foundKeyPath ?? throw new HardwareWalletException($"This store is not configured to use this ledger");
storeData.SetSupportedPaymentMethod(derivationSettings);
await Repository.UpdateStore(storeData);
}
// If it has already the AccountKeyPath, we did not looked up for it, so we need to check if we are on the right ledger
else
{
// Checking if ledger is right with the RootFingerprint is faster as it does not need to make a query to the parent xpub,
// but some deployment does not have it, so let's use AccountKeyPath instead
if (accountKey.RootFingerprint == null)
{
var actualPubKey = await hw.GetExtPubKey(network, accountKey.AccountKeyPath, normalOperationTimeout.Token);
if (!derivationSettings.AccountDerivation.GetExtPubKeys().Any(p => p.GetPublicKey() == actualPubKey.GetPublicKey()))
throw new HardwareWalletException($"This store is not configured to use this ledger");
}
// We have the root fingerprint, we can check the root from it
else
{
var actualPubKey = await hw.GetPubKey(network, new KeyPath(), normalOperationTimeout.Token);
if (actualPubKey.GetHDFingerPrint() != accountKey.RootFingerprint.Value)
throw new HardwareWalletException($"This store is not configured to use this ledger");
}
}
// Some deployment does not have the RootFingerprint set, let's fix this...
if (accountKey.RootFingerprint == null)
{
accountKey.RootFingerprint = (await hw.GetPubKey(network, new KeyPath(), normalOperationTimeout.Token)).GetHDFingerPrint();
storeData.SetSupportedPaymentMethod(derivationSettings);
await Repository.UpdateStore(storeData);
}
var psbtResponse = new CreatePSBTResponse()
{
PSBT = PSBT.Parse(psbt, network.NBitcoinNetwork),
ChangeAddress = string.IsNullOrEmpty(hintChange) ? null : BitcoinAddress.Create(hintChange, network.NBitcoinNetwork)
};
derivationSettings.RebaseKeyPaths(psbtResponse.PSBT);
signTimeout.CancelAfter(TimeSpan.FromMinutes(5));
psbtResponse.PSBT = await hw.SignTransactionAsync(psbtResponse.PSBT, accountKey.GetRootedKeyPath(), accountKey.AccountKey, psbtResponse.ChangeAddress?.ScriptPubKey, signTimeout.Token);
result = new SendToAddressResult() { PSBT = psbtResponse.PSBT.ToBase64() };
}
}
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, _serializerSettings));
await webSocket.SendAsync(new ArraySegment<byte>(bytes), WebSocketMessageType.Text, true, new CancellationTokenSource(2000).Token);
}
}
catch { }
finally
{
await webSocket.CloseSocket();
}
}
return new EmptyResult();
}
[Route("{walletId}/settings")]
public async Task<IActionResult> WalletSettings(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId)
{
var derivationSchemeSettings = GetDerivationSchemeSettings(walletId);
if (derivationSchemeSettings == null)
return NotFound();
var store = (await Repository.FindStore(walletId.StoreId, GetUserId()));
var vm = new WalletSettingsViewModel()
{
Label = derivationSchemeSettings.Label,
DerivationScheme = derivationSchemeSettings.AccountDerivation.ToString(),
DerivationSchemeInput = derivationSchemeSettings.AccountOriginal,
SelectedSigningKey = derivationSchemeSettings.SigningKey.ToString()
};
vm.AccountKeys = derivationSchemeSettings.AccountKeySettings
.Select(e => new WalletSettingsAccountKeyViewModel()
{
AccountKey = e.AccountKey.ToString(),
MasterFingerprint = e.RootFingerprint is HDFingerprint fp ? fp.ToString() : null,
AccountKeyPath = e.AccountKeyPath == null ? "" : $"m/{e.AccountKeyPath}"
}).ToList();
return View(vm);
}
[Route("{walletId}/settings")]
[HttpPost]
public async Task<IActionResult> WalletSettings(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, WalletSettingsViewModel vm)
{
if (!ModelState.IsValid)
return View(vm);
var derivationScheme = GetDerivationSchemeSettings(walletId);
if (derivationScheme == null)
return NotFound();
derivationScheme.Label = vm.Label;
derivationScheme.SigningKey = string.IsNullOrEmpty(vm.SelectedSigningKey) ? null : new BitcoinExtPubKey(vm.SelectedSigningKey, derivationScheme.Network.NBitcoinNetwork);
for (int i = 0; i < derivationScheme.AccountKeySettings.Length; i++)
{
derivationScheme.AccountKeySettings[i].AccountKeyPath = string.IsNullOrWhiteSpace(vm.AccountKeys[i].AccountKeyPath) ? null
: new KeyPath(vm.AccountKeys[i].AccountKeyPath);
derivationScheme.AccountKeySettings[i].RootFingerprint = string.IsNullOrWhiteSpace(vm.AccountKeys[i].MasterFingerprint) ? (HDFingerprint?)null
: new HDFingerprint(Encoders.Hex.DecodeData(vm.AccountKeys[i].MasterFingerprint));
}
var store = (await Repository.FindStore(walletId.StoreId, GetUserId()));
store.SetSupportedPaymentMethod(derivationScheme);
await Repository.UpdateStore(store);
TempData[WellKnownTempData.SuccessMessage] = "Wallet settings updated";
return RedirectToAction(nameof(WalletSettings));
}
}
public class GetInfoResult
{
}
public class SendToAddressResult
{
[JsonProperty("psbt")]
public string PSBT { get; set; }
}
}