aljaz/btcpayserver
1
0
Fork 0
mirror of https://github.com/aljazceru/btcpayserver.git synced 2025-12-17 22:14:26 +01:00
Code Issues Packages Projects Releases Wiki Activity

Multisig/watchonly wallet transaction creation flow proof of concept (#5743)

Browse Source
This commit is contained in:
Andrew Camilleri
2024-12-10 13:56:52 +01:00
committed by GitHub
parent cc915df10e
commit b797cc9af8
22 changed files with 834 additions and 232 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
BTCPayServer/Controllers/UIVaultController.cs
View File

@@ -141,12 +141,15 @@ namespace BTCPayServer.Controllers
var psbt = PSBT.Parse(o["psbt"].Value<string>(), network.NBitcoinNetwork);
var derivationSettings = GetDerivationSchemeSettings(walletId);
derivationSettings.RebaseKeyPaths(psbt);
var signing = derivationSettings.GetSigningAccountKeySettings();
if (signing.GetRootedKeyPath()?.MasterFingerprint != fingerprint)
// we ensure that the device fingerprint is part of the derivation settings
if (derivationSettings.AccountKeySettings.All(a => a.RootFingerprint != fingerprint))
{
await websocketHelper.Send("{ \"error\": \"wrong-wallet\"}", cancellationToken);
continue;
}
// otherwise, let the device check if it can sign anything
var signableInputs = psbt.Inputs
.SelectMany(i => i.HDKeyPaths)
.Where(i => i.Value.MasterFingerprint == fingerprint)
@@ -159,12 +162,24 @@ namespace BTCPayServer.Controllers
await websocketHelper.Send("{ \"error\": \"wrong-keypath\"}", cancellationToken);
continue;
}
if (derivationSettings.IsMultiSigOnServer)
{
var alreadySigned = psbt.Inputs.Any(a =>
a.PartialSigs.Any(a => a.Key == actualPubKey));
if (alreadySigned)
{
await websocketHelper.Send("{ \"error\": \"already-signed-psbt\"}", cancellationToken);
continue;
}
}
}
try
{
psbt = await device.SignPSBTAsync(psbt, cancellationToken);
}
catch (Hwi.HwiException)
catch (HwiException)
{
await websocketHelper.Send("{ \"error\": \"user-reject\"}", cancellationToken);
continue;