public async Task <IActionResult> WalletRescan(
[ModelBinder(typeof(WalletIdModelBinder))]
WalletId walletId)
{
if (walletId?.StoreId == null)
{
return(NotFound());
}
var store = await Repository.FindStore(walletId.StoreId, GetUserId());
DerivationStrategy paymentMethod = GetPaymentMethod(walletId, store);
if (paymentMethod == null)
{
return(NotFound());
}
var vm = new RescanWalletModel();
vm.IsFullySync = _dashboard.IsFullySynched(walletId.CryptoCode, out var unused);
// We need to ensure it is segwit,
// because hardware wallet support need the parent transactions to sign, which NBXplorer don't have. (Nor does a pruned node)
vm.IsSegwit = paymentMethod.DerivationStrategyBase.IsSegwit();
vm.IsServerAdmin = User.Claims.Any(c => c.Type == Policies.CanModifyServerSettings.Key && c.Value == "true");
vm.IsSupportedByCurrency = _dashboard.Get(walletId.CryptoCode)?.Status?.BitcoinStatus?.Capabilities?.CanScanTxoutSet == true;
var explorer = ExplorerClientProvider.GetExplorerClient(walletId.CryptoCode);
var scanProgress = await explorer.GetScanUTXOSetInformationAsync(paymentMethod.DerivationStrategyBase);
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));
}
public bool TaprootActivated(string crytoCode)
{
var network = (BTCPayNetwork)_NetworkProvider.GetNetwork(crytoCode);
#pragma warning disable CS0618
if (!(network.IsBTC && network.NBitcoinNetwork.ChainName == ChainName.Mainnet))
{
// Consider it activated for everything that is not mainnet bitcoin
return(true);
}
#pragma warning restore CS0618
var status = _Dashboard.Get(crytoCode).Status;
return(status.ChainHeight >= 709632);
}
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));
}
public override async Task <IPaymentMethodDetails> CreatePaymentMethodDetails(
InvoiceLogs logs,
DerivationSchemeSettings supportedPaymentMethod, PaymentMethod paymentMethod, StoreData store,
BTCPayNetwork network, object preparePaymentObject)
{
if (!_ExplorerProvider.IsAvailable(network))
{
throw new PaymentMethodUnavailableException($"Full node not available");
}
var prepare = (Prepare)preparePaymentObject;
Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod onchainMethod =
new Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod();
var blob = store.GetStoreBlob();
onchainMethod.NetworkFeeMode = blob.NetworkFeeMode;
onchainMethod.FeeRate = await prepare.GetFeeRate;
switch (onchainMethod.NetworkFeeMode)
{
case NetworkFeeMode.Always:
onchainMethod.NetworkFeeRate = (await prepare.GetNetworkFeeRate);
onchainMethod.NextNetworkFee =
onchainMethod.NetworkFeeRate.GetFee(100); // assume price for 100 bytes
break;
case NetworkFeeMode.Never:
onchainMethod.NetworkFeeRate = FeeRate.Zero;
onchainMethod.NextNetworkFee = Money.Zero;
break;
case NetworkFeeMode.MultiplePaymentsOnly:
onchainMethod.NetworkFeeRate = (await prepare.GetNetworkFeeRate);
onchainMethod.NextNetworkFee = Money.Zero;
break;
}
onchainMethod.DepositAddress = (await prepare.ReserveAddress).Address.ToString();
onchainMethod.PayjoinEnabled = blob.PayJoinEnabled &&
PayjoinClient.SupportedFormats.Contains(supportedPaymentMethod
.AccountDerivation.ScriptPubKeyType()) &&
network.SupportPayJoin;
if (onchainMethod.PayjoinEnabled)
{
var prefix = $"{supportedPaymentMethod.PaymentId.ToPrettyString()}:";
var nodeSupport = _dashboard?.Get(network.CryptoCode)?.Status?.BitcoinStatus?.Capabilities
?.CanSupportTransactionCheck is true;
onchainMethod.PayjoinEnabled &= supportedPaymentMethod.IsHotWallet && nodeSupport;
if (!isHotwallet)
{
logs.Write($"{prefix} Payjoin should have been enabled, but your store is not a hotwallet");
}
if (!nodeSupport)
{
logs.Write($"{prefix} Payjoin should have been enabled, but your version of NBXplorer or full node does not support it.");
}
if (onchainMethod.PayjoinEnabled)
{
logs.Write($"{prefix} Payjoin is enabled for this invoice.");
}
}
return(onchainMethod);
}
public override async Task <IPaymentMethodDetails> CreatePaymentMethodDetails(
InvoiceLogs logs,
DerivationSchemeSettings supportedPaymentMethod, PaymentMethod paymentMethod, StoreData store,
BTCPayNetwork network, object preparePaymentObject)
{
if (preparePaymentObject is null)
{
return(new BitcoinLikeOnChainPaymentMethod()
{
Activated = false
});
}
if (!_ExplorerProvider.IsAvailable(network))
{
throw new PaymentMethodUnavailableException($"Full node not available");
}
var prepare = (Prepare)preparePaymentObject;
var onchainMethod = new BitcoinLikeOnChainPaymentMethod();
var blob = store.GetStoreBlob();
onchainMethod.Activated = true;
// TODO: this needs to be refactored to move this logic into BitcoinLikeOnChainPaymentMethod
// This is likely a constructor code
onchainMethod.NetworkFeeMode = blob.NetworkFeeMode;
onchainMethod.FeeRate = await prepare.GetFeeRate;
switch (onchainMethod.NetworkFeeMode)
{
case NetworkFeeMode.Always:
onchainMethod.NetworkFeeRate = (await prepare.GetNetworkFeeRate);
onchainMethod.NextNetworkFee =
onchainMethod.NetworkFeeRate.GetFee(100); // assume price for 100 bytes
break;
case NetworkFeeMode.Never:
onchainMethod.NetworkFeeRate = FeeRate.Zero;
onchainMethod.NextNetworkFee = Money.Zero;
break;
case NetworkFeeMode.MultiplePaymentsOnly:
onchainMethod.NetworkFeeRate = (await prepare.GetNetworkFeeRate);
onchainMethod.NextNetworkFee = Money.Zero;
break;
}
var reserved = await prepare.ReserveAddress;
onchainMethod.DepositAddress = reserved.Address.ToString();
onchainMethod.KeyPath = reserved.KeyPath;
onchainMethod.PayjoinEnabled = blob.PayJoinEnabled &&
supportedPaymentMethod
.AccountDerivation.ScriptPubKeyType() != ScriptPubKeyType.Legacy &&
network.SupportPayJoin;
if (onchainMethod.PayjoinEnabled)
{
var prefix = $"{supportedPaymentMethod.PaymentId.ToPrettyString()}:";
var nodeSupport = _dashboard?.Get(network.CryptoCode)?.Status?.BitcoinStatus?.Capabilities
?.CanSupportTransactionCheck is true;
onchainMethod.PayjoinEnabled &= supportedPaymentMethod.IsHotWallet && nodeSupport;
if (!supportedPaymentMethod.IsHotWallet)
{
logs.Write($"{prefix} Payjoin should have been enabled, but your store is not a hotwallet", InvoiceEventData.EventSeverity.Warning);
}
if (!nodeSupport)
{
logs.Write($"{prefix} Payjoin should have been enabled, but your version of NBXplorer or full node does not support it.", InvoiceEventData.EventSeverity.Warning);
}
if (onchainMethod.PayjoinEnabled)
{
logs.Write($"{prefix} Payjoin is enabled for this invoice.", InvoiceEventData.EventSeverity.Info);
}
}
return(onchainMethod);
}
public async Task <IActionResult> CreateOnChainTransaction(string storeId, string cryptoCode,
[FromBody] CreateOnChainTransactionRequest request)
{
if (IsInvalidWalletRequest(cryptoCode, out var network,
out var derivationScheme, out var actionResult))
{
return(actionResult);
}
if (network.ReadonlyWallet)
{
return(this.CreateAPIError(503, "not-available",
$"{cryptoCode} sending services are not currently available"));
}
//This API is only meant for hot wallet usage for now. We can expand later when we allow PSBT manipulation.
if (!(await CanUseHotWallet()).HotWallet)
{
return(this.CreateAPIError(503, "not-available", $"You need to allow non-admins to use hotwallets for their stores (in /server/policies)"));
}
if (request.Destinations == null || !request.Destinations.Any())
{
ModelState.AddModelError(
nameof(request.Destinations),
"At least one destination must be specified"
);
return(this.CreateValidationError(ModelState));
}
if (request.SelectedInputs != null && request.ExcludeUnconfirmed == true)
{
ModelState.AddModelError(
nameof(request.ExcludeUnconfirmed),
"Can't automatically exclude unconfirmed UTXOs while selection custom inputs"
);
return(this.CreateValidationError(ModelState));
}
var explorerClient = _explorerClientProvider.GetExplorerClient(cryptoCode);
var wallet = _btcPayWalletProvider.GetWallet(network);
var utxos = await wallet.GetUnspentCoins(derivationScheme.AccountDerivation, request.ExcludeUnconfirmed);
if (request.SelectedInputs != null || !utxos.Any())
{
utxos = utxos.Where(coin => request.SelectedInputs?.Contains(coin.OutPoint) ?? true)
.ToArray();
if (utxos.Any() is false)
{
//no valid utxos selected
request.AddModelError(transactionRequest => transactionRequest.SelectedInputs,
"There are no available utxos based on your request", this);
}
}
var balanceAvailable = utxos.Sum(coin => coin.Value.GetValue(network));
var subtractFeesOutputsCount = new List <int>();
var subtractFees = request.Destinations.Any(o => o.SubtractFromAmount);
int?payjoinOutputIndex = null;
var sum = 0m;
var outputs = new List <WalletSendModel.TransactionOutput>();
for (var index = 0; index < request.Destinations.Count; index++)
{
var destination = request.Destinations[index];
if (destination.SubtractFromAmount)
{
subtractFeesOutputsCount.Add(index);
}
BitcoinUrlBuilder?bip21 = null;
var amount = destination.Amount;
if (amount.GetValueOrDefault(0) <= 0)
{
amount = null;
}
var address = string.Empty;
try
{
bip21 = new BitcoinUrlBuilder(destination.Destination, network.NBitcoinNetwork);
amount ??= bip21.Amount.GetValue(network);
if (bip21.Address is null)
{
request.AddModelError(transactionRequest => transactionRequest.Destinations[index],
"This BIP21 destination is missing a bitcoin address", this);
}
else
{
address = bip21.Address.ToString();
}
if (destination.SubtractFromAmount)
{
request.AddModelError(transactionRequest => transactionRequest.Destinations[index],
"You cannot use a BIP21 destination along with SubtractFromAmount", this);
}
}
catch (FormatException)
{
try
{
address = BitcoinAddress.Create(destination.Destination, network.NBitcoinNetwork).ToString();
}
catch (Exception)
{
request.AddModelError(transactionRequest => transactionRequest.Destinations[index],
"Destination must be a BIP21 payment link or an address", this);
}
}
if (amount is null || amount <= 0)
{
request.AddModelError(transactionRequest => transactionRequest.Destinations[index],
"Amount must be specified or destination must be a BIP21 payment link, and greater than 0", this);
}
if (request.ProceedWithPayjoin && bip21?.UnknownParameters?.ContainsKey(PayjoinClient.BIP21EndpointKey) is true)
{
payjoinOutputIndex = index;
}
outputs.Add(new WalletSendModel.TransactionOutput()
{
DestinationAddress = address,
Amount = amount,
SubtractFeesFromOutput = destination.SubtractFromAmount
});
sum += destination.Amount ?? 0;
}
if (subtractFeesOutputsCount.Count > 1)
{
foreach (var subtractFeesOutput in subtractFeesOutputsCount)
{
request.AddModelError(model => model.Destinations[subtractFeesOutput].SubtractFromAmount,
"You can only subtract fees from one destination", this);
}
}
if (balanceAvailable < sum)
{
request.AddModelError(transactionRequest => transactionRequest.Destinations,
"You are attempting to send more than is available", this);
}
else if (balanceAvailable == sum && !subtractFees)
{
request.AddModelError(transactionRequest => transactionRequest.Destinations,
"You are sending your entire balance, you should subtract the fees from a destination", this);
}
var minRelayFee = _nbXplorerDashboard.Get(network.CryptoCode).Status.BitcoinStatus?.MinRelayTxFee ??
new FeeRate(1.0m);
if (request.FeeRate != null && request.FeeRate < minRelayFee)
{
ModelState.AddModelError(nameof(request.FeeRate),
"The fee rate specified is lower than the current minimum relay fee");
}
if (!ModelState.IsValid)
{
return(this.CreateValidationError(ModelState));
}
CreatePSBTResponse psbt;
try
{
psbt = await _walletsController.CreatePSBT(network, derivationScheme,
new WalletSendModel()
{
SelectedInputs = request.SelectedInputs?.Select(point => point.ToString()),
Outputs = outputs,
AlwaysIncludeNonWitnessUTXO = true,
InputSelection = request.SelectedInputs?.Any() is true,
AllowFeeBump =
!request.RBF.HasValue ? WalletSendModel.ThreeStateBool.Maybe :
request.RBF.Value ? WalletSendModel.ThreeStateBool.Yes :
WalletSendModel.ThreeStateBool.No,
FeeSatoshiPerByte = request.FeeRate?.SatoshiPerByte,
NoChange = request.NoChange
},
CancellationToken.None);
}
