protected override async Task BuildTransaction(string password, PaymentIntent payments, FeeStrategy feeStrategy, bool allowUnconfirmed = false, IEnumerable <OutPoint> allowedInputs = null) { BuildTransactionResult result = await Task.Run(() => Wallet.BuildTransaction(Password, payments, feeStrategy, allowUnconfirmed: true, allowedInputs: allowedInputs, GetPayjoinClient())); MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.SigningTransaction); SmartTransaction signedTransaction = result.Transaction; if (Wallet.KeyManager.IsHardwareWallet && !result.Signed) // If hardware but still has a privkey then it's password, then meh. { try { IsHardwareBusy = true; MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.AcquiringSignatureFromHardwareWallet); var client = new HwiClient(Global.Network); using var cts = new CancellationTokenSource(TimeSpan.FromMinutes(3)); PSBT signedPsbt = null; try { try { signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, result.Psbt, cts.Token); } catch (PSBTException ex) when(ex.Message.Contains("NullFail")) { NotificationHelpers.Warning("Fall back to Unverified Inputs Mode, trying to sign again."); // Ledger Nano S hackfix https://github.com/MetacoSA/NBitcoin/pull/888 var noinputtx = result.Psbt.Clone(); foreach (var input in noinputtx.Inputs) { input.NonWitnessUtxo = null; } signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, noinputtx, cts.Token); } } catch (HwiException) { await PinPadViewModel.UnlockAsync(); signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, result.Psbt, cts.Token); } signedTransaction = signedPsbt.ExtractSmartTransaction(result.Transaction); } finally { MainWindowViewModel.Instance.StatusBar.TryRemoveStatus(StatusType.AcquiringSignatureFromHardwareWallet); IsHardwareBusy = false; } } MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.BroadcastingTransaction); await Task.Run(async() => await Global.TransactionBroadcaster.SendTransactionAsync(signedTransaction)); ResetUi(); }
protected override async Task DoAfterBuildTransaction(BuildTransactionResult result) { MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.SigningTransaction); SmartTransaction signedTransaction = result.Transaction; if (Wallet.KeyManager.IsHardwareWallet && !result.Signed) // If hardware but still has a privkey then it's password, then meh. { try { IsHardwareBusy = true; MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.AcquiringSignatureFromHardwareWallet); var client = new HwiClient(Global.Network); using var cts = new CancellationTokenSource(TimeSpan.FromMinutes(3)); PSBT signedPsbt = null; try { signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, result.Psbt, cts.Token); } catch (HwiException) { await PinPadViewModel.UnlockAsync(); signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, result.Psbt, cts.Token); } signedTransaction = signedPsbt.ExtractSmartTransaction(result.Transaction); } catch (Exception ex) { NotificationHelpers.Error(ex.ToUserFriendlyString()); return; } finally { MainWindowViewModel.Instance.StatusBar.TryRemoveStatus(StatusType.AcquiringSignatureFromHardwareWallet); IsHardwareBusy = false; } } MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.BroadcastingTransaction); await Task.Run(async() => await Global.TransactionBroadcaster.SendTransactionAsync(signedTransaction)); ResetUi(); }
protected override async Task BuildTransaction(string password, PaymentIntent payments, FeeStrategy feeStrategy, bool allowUnconfirmed = false, IEnumerable <OutPoint> allowedInputs = null) { BuildTransactionResult result = await Task.Run(() => Wallet.BuildTransaction(Password, payments, feeStrategy, allowUnconfirmed: true, allowedInputs: allowedInputs, GetPayjoinClient())); MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.SigningTransaction); SmartTransaction signedTransaction = result.Transaction; if (Wallet.KeyManager.IsHardwareWallet && !result.Signed) // If hardware but still has a privkey then it's password, then meh. { try { IsHardwareBusy = true; MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.AcquiringSignatureFromHardwareWallet); var client = new HwiClient(Global.Network); using var cts = new CancellationTokenSource(TimeSpan.FromMinutes(3)); PSBT signedPsbt = null; try { signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, result.Psbt, cts.Token); } catch (HwiException) { await PinPadViewModel.UnlockAsync(); signedPsbt = await client.SignTxAsync(Wallet.KeyManager.MasterFingerprint.Value, result.Psbt, cts.Token); } signedTransaction = signedPsbt.ExtractSmartTransaction(result.Transaction); } finally { MainWindowViewModel.Instance.StatusBar.TryRemoveStatus(StatusType.AcquiringSignatureFromHardwareWallet); IsHardwareBusy = false; } } MainWindowViewModel.Instance.StatusBar.TryAddStatus(StatusType.BroadcastingTransaction); await Task.Run(async() => await Global.TransactionBroadcaster.SendTransactionAsync(signedTransaction)); ResetUi(); }
public ReceiveTabViewModel(WalletViewModel walletViewModel) : base("Receive", walletViewModel) { _addresses = new ObservableCollection <AddressViewModel>(); Label = ""; InitializeAddresses(); GenerateCommand = ReactiveCommand.Create(() => { var label = new SmartLabel(Label); Label = label.ToString(); if (label.IsEmpty) { LabelRequiredNotificationVisible = true; LabelRequiredNotificationOpacity = 1; Dispatcher.UIThread.PostLogException(async() => { await Task.Delay(TimeSpan.FromSeconds(4)); LabelRequiredNotificationOpacity = 0; }); return; } Dispatcher.UIThread.PostLogException(() => { HdPubKey newKey = Global.WalletService.GetReceiveKey(new SmartLabel(Label), Addresses.Select(x => x.Model).Take(7)); // Never touch the first 7 keys. AddressViewModel found = Addresses.FirstOrDefault(x => x.Model == newKey); if (found != default) { Addresses.Remove(found); } var newAddress = new AddressViewModel(newKey, Global); Addresses.Insert(0, newAddress); SelectedAddress = newAddress; Label = ""; }); }); this.WhenAnyValue(x => x.Label).Subscribe(UpdateSuggestions); this.WhenAnyValue(x => x.SelectedAddress).Subscribe(async address => { if (Global.UiConfig?.Autocopy is false || address is null) { return; } await address.TryCopyToClipboardAsync(); }); var isCoinListItemSelected = this.WhenAnyValue(x => x.SelectedAddress).Select(coin => coin != null); CopyAddress = ReactiveCommand.CreateFromTask(async() => { if (SelectedAddress is null) { return; } await SelectedAddress.TryCopyToClipboardAsync(); }, isCoinListItemSelected); CopyLabel = ReactiveCommand.CreateFromTask(async() => { try { await Application.Current.Clipboard.SetTextAsync(SelectedAddress.Label ?? string.Empty); } catch (Exception) { } }, isCoinListItemSelected); ToggleQrCode = ReactiveCommand.Create(() => { try { SelectedAddress.IsExpanded = !SelectedAddress.IsExpanded; } catch (Exception) { } }, isCoinListItemSelected); #pragma warning disable IDE0053 // Use expression body for lambda expressions ChangeLabelCommand = ReactiveCommand.Create(() => { SelectedAddress.InEditMode = true; }); #pragma warning restore IDE0053 // Use expression body for lambda expressions DisplayAddressOnHwCommand = ReactiveCommand.CreateFromTask(async() => { var client = new HwiClient(Global.Network); using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(60)); try { await client.DisplayAddressAsync(KeyManager.MasterFingerprint.Value, SelectedAddress.Model.FullKeyPath, cts.Token); } catch (HwiException) { await PinPadViewModel.UnlockAsync(Global); await client.DisplayAddressAsync(KeyManager.MasterFingerprint.Value, SelectedAddress.Model.FullKeyPath, cts.Token); } }); _suggestions = new ObservableCollection <SuggestionViewModel>(); }