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Make sure that the accountkey can sign a transaction

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nicolas.dorier
2019-05-15 19:00:26 +09:00
parent e100edce24
commit d914fe2f48
3 changed files with 38 additions and 25 deletions
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22
BTCPayServer/Controllers/WalletsController.cs
View File

@@ -313,25 +313,31 @@ namespace BTCPayServer.Controllers
return View(viewModel);
}
RootedKeyPath rootedKeyPath = null;
ExtKey signingKey = null;
var settings = (await GetDerivationSchemeSettings(walletId));
var signingKeySettings = settings.GetSigningAccountKeySettings();
if (signingKeySettings.RootFingerprint is null)
signingKeySettings.RootFingerprint = extKey.GetPublicKey().GetHDFingerPrint();
if (signingKeySettings.GetRootedKeyPath()?.MasterFingerprint == extKey.GetPublicKey().GetHDFingerPrint())
{
psbt.RebaseKeyPaths(signingKeySettings.AccountKey, signingKeySettings.GetRootedKeyPath());
rootedKeyPath = signingKeySettings.GetRootedKeyPath();
}
ExtKey signingKey = rootedKeyPath == null ? extKey : extKey.Derive(rootedKeyPath.KeyPath);
RootedKeyPath rootedKeyPath = signingKeySettings.GetRootedKeyPath();
// The user gave the root key, let's try to rebase the PSBT, and derive the account private key
if (rootedKeyPath?.MasterFingerprint == extKey.GetPublicKey().GetHDFingerPrint())
{
psbt.RebaseKeyPaths(signingKeySettings.AccountKey, rootedKeyPath);
signingKey = extKey.Derive(rootedKeyPath.KeyPath);
}
// The user maybe gave the account key, let's try to sign with it
else
{
signingKey = extKey;
}
var balanceChange = psbt.GetBalance(signingKey, rootedKeyPath);
if (balanceChange == Money.Zero)
{
ModelState.AddModelError(nameof(viewModel.SeedOrKey), "This seed does not seem to be able to sign this transaction. Either this is the wrong key, or Wallet Settings have not the correct account path in the wallet settings.");
return View(viewModel);
}
psbt.SignAll(extKey, rootedKeyPath);
psbt.SignAll(signingKey, rootedKeyPath);
ModelState.Remove(nameof(viewModel.PSBT));
return await WalletPSBTReady(walletId, psbt.ToBase64(), signingKey.GetWif(network.NBitcoinNetwork).ToString(), rootedKeyPath.ToString());
}