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Pass the hint change address to hardware wallet (useful in care of send-to-self where the underlying wallet support only output belonging to self)

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This commit is contained in:
nicolas.dorier 2019-05-07 08:21:34 +09:00
parent e2b2cf0175
commit 08bf4faeee
No known key found for this signature in database
GPG Key ID: 6618763EF09186FE
2 changed files with 11 additions and 9 deletions
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14
BTCPayServer/Controllers/WalletsController.cs
View File

@ -504,17 +504,17 @@ namespace BTCPayServer.Controllers
{
psbtRequest.ExplicitChangeAddress = destinationPSBT.Destination;
}
var psbt = (await nbx.CreatePSBTAsync(derivationScheme, psbtRequest, normalOperationTimeout.Token))?.PSBT;
var psbt = (await nbx.CreatePSBTAsync(derivationScheme, psbtRequest, normalOperationTimeout.Token));
if (psbt == null)
throw new Exception("You need to update your version of NBXplorer");
if (network.MinFee != null)
{
psbt.TryGetFee(out var fee);
psbt.PSBT.TryGetFee(out var fee);
if (fee < network.MinFee)
{
psbtRequest.FeePreference = new FeePreference() { ExplicitFee = network.MinFee };
psbt = (await nbx.CreatePSBTAsync(derivationScheme, psbtRequest, normalOperationTimeout.Token)).PSBT;
psbt = (await nbx.CreatePSBTAsync(derivationScheme, psbtRequest, normalOperationTimeout.Token));
}
}
@ -538,7 +538,7 @@ namespace BTCPayServer.Controllers
// Here we rebase the hd_keys in the PSBT to have a keypath relative to the root HD so the wallet can sign
// Note that the fingerprint of the hd keys are now 0, which is wrong
// However, hardware wallets does not give a damn, and sometimes does not even allow us to get this fingerprint anyway.
foreach (var o in psbt.Inputs.OfType<PSBTCoin>().Concat(psbt.Outputs))
foreach (var o in psbt.PSBT.Inputs.OfType<PSBTCoin>().Concat(psbt.PSBT.Outputs))
{
foreach (var keypath in o.HDKeyPaths.ToList())
{
@ -549,12 +549,12 @@ namespace BTCPayServer.Controllers
}
signTimeout.CancelAfter(TimeSpan.FromMinutes(5));
psbt = await hw.SignTransactionAsync(psbt, signTimeout.Token);
if(!psbt.TryFinalize(out var errors))
psbt.PSBT = await hw.SignTransactionAsync(psbt.PSBT, psbt.ChangeAddress?.ScriptPubKey, signTimeout.Token);
if(!psbt.PSBT.TryFinalize(out var errors))
{
throw new Exception($"Error while finalizing the transaction ({new PSBTException(errors).ToString()})");
}
var transaction = psbt.ExtractTransaction();
var transaction = psbt.PSBT.ExtractTransaction();
try
{
var broadcastResult = await nbx.BroadcastAsync(transaction);

6
BTCPayServer/Services/HardwareWalletService.cs
View File

@ -164,13 +164,15 @@ namespace BTCPayServer.Services
return foundKeyPath;
}
public async Task<PSBT> SignTransactionAsync(PSBT psbt,
public async Task<PSBT> SignTransactionAsync(PSBT psbt, Script changeHint,
CancellationToken cancellationToken)
{
try
{
var unsigned = psbt.GetGlobalTransaction();
var changeKeyPath = psbt.Outputs.Where(o => o.HDKeyPaths.Any())
var changeKeyPath = psbt.Outputs
.Where(o => changeHint == null ? true : changeHint == o.ScriptPubKey)
.Where(o => o.HDKeyPaths.Any())
.Select(o => o.HDKeyPaths.First().Value.Item2)
.FirstOrDefault();
var signatureRequests = psbt