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>();
}
