private async Task <PSBT> UpdatePSBT(DerivationSchemeSettings derivationSchemeSettings, PSBT psbt, BTCPayNetwork network)
{
var result = await ExplorerClientProvider.GetExplorerClient(network).UpdatePSBTAsync(new UpdatePSBTRequest()
{
PSBT = psbt,
DerivationScheme = derivationSchemeSettings.AccountDerivation,
});
if (result == null)
{
return(null);
}
derivationSchemeSettings.RebaseKeyPaths(result.PSBT);
return(result.PSBT);
}
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 || network.ReadonlyWallet)
{
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);
}
transactionOutput.DestinationAddress = transactionOutput.DestinationAddress?.Trim() ?? string.Empty;
try
{
BitcoinAddress.Create(transactionOutput.DestinationAddress, network.NBitcoinNetwork);
}
catch
{
var inputName =
string.Format(CultureInfo.InvariantCulture, "Outputs[{0}].", i.ToString(CultureInfo.InvariantCulture)) +
nameof(transactionOutput.DestinationAddress);
ModelState.AddModelError(inputName, "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 "vault":
return(ViewVault(walletId, psbt.PSBT));
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(RedirectToWalletPSBT(walletId, psbt.PSBT, name));
default:
return(View(vm));
}
}
public async Task <IActionResult> WalletSend(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId, WalletSendModel vm, string command = null, 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(walletId?.CryptoCode);
if (network == null)
{
return(NotFound());
}
vm.SupportRBF = network.SupportRBF;
var destination = ParseDestination(vm.Destination, network.NBitcoinNetwork);
if (destination == null)
{
ModelState.AddModelError(nameof(vm.Destination), "Invalid address");
}
if (vm.Amount.HasValue)
{
if (vm.CurrentBalance == vm.Amount.Value && !vm.SubstractFees)
{
ModelState.AddModelError(nameof(vm.Amount), "You are sending all your balance to the same destination, you should substract the fees");
}
if (vm.CurrentBalance < vm.Amount.Value)
{
ModelState.AddModelError(nameof(vm.Amount), "You are sending more than what you own");
}
}
if (!ModelState.IsValid)
{
return(View(vm));
}
DerivationSchemeSettings derivationScheme = await GetDerivationSchemeSettings(walletId);
CreatePSBTResponse psbt = null;
try
{
psbt = await CreatePSBT(network, derivationScheme, vm, cancellation);
}
catch (NBXplorerException ex)
{
ModelState.AddModelError(nameof(vm.Amount), ex.Error.Message);
return(View(vm));
}
catch (NotSupportedException)
{
ModelState.AddModelError(nameof(vm.Destination), "You need to update your version of NBXplorer");
return(View(vm));
}
derivationScheme.RebaseKeyPaths(psbt.PSBT);
if (command == "ledger")
{
return(ViewWalletSendLedger(psbt.PSBT, psbt.ChangeAddress));
}
else if (command == "analyze-psbt")
{
return(ViewPSBT(psbt.PSBT, $"Send-{vm.Amount.Value}-{network.CryptoCode}-to-{destination[0].ToString()}.psbt"));
}
return(View(vm));
}
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(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,
"Por favor agregue al menos una salida de transacción");
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), "Dirección inválida");
}
if (transactionOutput.Amount.HasValue)
{
transactionAmountSum += transactionOutput.Amount.Value;
if (vm.CurrentBalance == transactionOutput.Amount.Value &&
!transactionOutput.SubtractFeesFromOutput)
{
vm.AddModelError(model => model.Outputs[i].SubtractFeesFromOutput,
"Está enviando todo su saldo al mismo destino, debe restar las tarifas",
ModelState);
}
}
}
if (subtractFeesOutputsCount.Count > 1)
{
foreach (var subtractFeesOutput in subtractFeesOutputsCount)
{
vm.AddModelError(model => model.Outputs[subtractFeesOutput].SubtractFeesFromOutput,
"Solo puedes restar tarifas de una salida", ModelState);
}
}
else if (vm.CurrentBalance == transactionAmountSum && !substractFees)
{
ModelState.AddModelError(string.Empty,
"Está enviando todo su saldo, debe restar las tarifas de una salida");
}
if (vm.CurrentBalance < transactionAmountSum)
{
for (var i = 0; i < vm.Outputs.Count; i++)
{
vm.AddModelError(model => model.Outputs[i].Amount,
"Estás enviando más de lo que tienes", ModelState);
}
}
if (!ModelState.IsValid)
{
return(View(vm));
}
DerivationSchemeSettings derivationScheme = await 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, "Necesitas actualizar tu versión de 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));
}
}