sparrowwallet/drongo
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implement method to add missing key path information to psbts

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This commit is contained in:
Craig Raw 2026-01-03 14:21:01 +02:00
parent 7b0ce57009
commit 03e2e76b24
1 changed files with 31 additions and 0 deletions
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31
src/main/java/com/sparrowwallet/drongo/psbt/PSBT.java
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@ -597,6 +597,37 @@ public class PSBT {
return fee;
}
public void addKeyPathInformation(Wallet signingWallet) {
List<PSBTInput> missingKeyPathInputs = new ArrayList<>();
for(PSBTInput psbtInput : getPsbtInputs()) {
ScriptType scriptType = psbtInput.getScriptType();
if((scriptType == ScriptType.P2TR && psbtInput.getTapDerivedPublicKeys().isEmpty()) ||
(scriptType != null && scriptType != ScriptType.P2TR && psbtInput.getDerivedPublicKeys().isEmpty())) {
missingKeyPathInputs.add(psbtInput);
}
}
if(!missingKeyPathInputs.isEmpty() && signingWallet != null) {
Map<PSBTInput, WalletNode> signingNodes = signingWallet.getSigningNodes(this);
for(PSBTInput psbtInput : missingKeyPathInputs) {
WalletNode walletNode = signingNodes.get(psbtInput);
if(walletNode != null && walletNode.getWallet() != null) {
for(Keystore keystore : signingWallet.getKeystores()) {
ScriptType scriptType = walletNode.getWallet().getScriptType();
ECKey pubKey = keystore.getPubKey(walletNode);
KeyDerivation keyDerivation = keystore.getKeyDerivation().extend(walletNode.getDerivation());
if(scriptType == ScriptType.P2TR) {
psbtInput.setTapInternalKey(ECKey.fromPublicOnly(pubKey.getPubKeyXCoord()));
psbtInput.getTapDerivedPublicKeys().put(psbtInput.getTapInternalKey(), Map.of(keyDerivation, Collections.emptyList()));
} else {
psbtInput.getDerivedPublicKeys().put(scriptType.getOutputKey(pubKey), keyDerivation);
}
}
}
}
}
}
public void verifySignatures() throws PSBTSignatureException {
verifySignatures(getPsbtInputs());
}