Examples with PSBTInput com.sparrowwallet.drongo.psbt.PSBTInput used on opensource projects

Example 1 with PSBTInput

use of com.sparrowwallet.drongo.psbt.PSBTInput in project drongo by sparrowwallet.

the class PSBT method getPublicCopy.

public PSBT getPublicCopy() {
    try {
        PSBT publicCopy = new PSBT(serialize());
        publicCopy.extendedPublicKeys.clear();
        publicCopy.globalProprietary.clear();
        for (PSBTInput psbtInput : publicCopy.getPsbtInputs()) {
            psbtInput.getDerivedPublicKeys().clear();
            psbtInput.getProprietary().clear();
        }
        for (PSBTOutput psbtOutput : publicCopy.getPsbtOutputs()) {
            psbtOutput.getDerivedPublicKeys().clear();
            psbtOutput.getProprietary().clear();
        }
        return publicCopy;
    } catch (PSBTParseException e) {
        throw new IllegalStateException("Could not parse PSBT", e);
    }
}

Example 2 with PSBTInput

use of com.sparrowwallet.drongo.psbt.PSBTInput in project drongo by sparrowwallet.

the class PSBT method extractTransaction.

public Transaction extractTransaction() {
    boolean hasWitness = false;
    for (PSBTInput psbtInput : getPsbtInputs()) {
        if (psbtInput.getFinalScriptWitness() != null) {
            hasWitness = true;
        }
    }
    Transaction finalTransaction = new Transaction(transaction.bitcoinSerialize());
    if (hasWitness && !finalTransaction.isSegwit()) {
        finalTransaction.setSegwitFlag(Transaction.DEFAULT_SEGWIT_FLAG);
    }
    for (int i = 0; i < finalTransaction.getInputs().size(); i++) {
        TransactionInput txInput = finalTransaction.getInputs().get(i);
        PSBTInput psbtInput = getPsbtInputs().get(i);
        txInput.setScriptBytes(psbtInput.getFinalScriptSig() == null ? new byte[0] : psbtInput.getFinalScriptSig().getProgram());
        if (hasWitness) {
            if (psbtInput.getFinalScriptWitness() != null) {
                txInput.setWitness(psbtInput.getFinalScriptWitness());
            } else {
                txInput.setWitness(new TransactionWitness(finalTransaction));
            }
        }
    }
    return finalTransaction;
}

Example 3 with PSBTInput

use of com.sparrowwallet.drongo.psbt.PSBTInput in project drongo by sparrowwallet.

the class PSBT method getFee.

public Long getFee() {
    long fee = 0L;
    for (PSBTInput input : psbtInputs) {
        TransactionOutput utxo = input.getUtxo();
        if (utxo != null) {
            fee += utxo.getValue();
        } else {
            log.error("Cannot determine fee - not enough information provided on inputs");
            return null;
        }
    }
    for (int i = 0; i < transaction.getOutputs().size(); i++) {
        TransactionOutput output = transaction.getOutputs().get(i);
        fee -= output.getValue();
    }
    return fee;
}

Example 4 with PSBTInput

use of com.sparrowwallet.drongo.psbt.PSBTInput in project drongo by sparrowwallet.

the class PSBT method parseInputEntries.

private void parseInputEntries(List<List<PSBTEntry>> inputEntryLists, boolean verifySignatures) throws PSBTParseException {
    for (List<PSBTEntry> inputEntries : inputEntryLists) {
        PSBTEntry duplicate = findDuplicateKey(inputEntries);
        if (duplicate != null) {
            throw new PSBTParseException("Found duplicate key for PSBT input: " + Utils.bytesToHex(duplicate.getKey()));
        }
        int inputIndex = this.psbtInputs.size();
        PSBTInput input = new PSBTInput(this, inputEntries, transaction, inputIndex);
        this.psbtInputs.add(input);
    }
    if (verifySignatures) {
        for (PSBTInput input : psbtInputs) {
            boolean verified = input.verifySignatures();
            if (!verified && input.getPartialSignatures().size() > 0) {
                throw new PSBTSignatureException("Unverifiable partial signatures provided");
            }
        }
    }
}

Example 5 with PSBTInput

use of com.sparrowwallet.drongo.psbt.PSBTInput in project drongo by sparrowwallet.

the class Wallet method sign.

public void sign(PSBT psbt) throws MnemonicException {
    Map<PSBTInput, WalletNode> signingNodes = getSigningNodes(psbt);
    for (Map.Entry<PSBTInput, WalletNode> signingEntry : signingNodes.entrySet()) {
        Wallet signingWallet = signingEntry.getValue().getWallet();
        for (Keystore keystore : signingWallet.getKeystores()) {
            if (keystore.hasPrivateKey()) {
                ECKey privKey = signingWallet.getScriptType().getOutputKey(keystore.getKey(signingEntry.getValue()));
                PSBTInput psbtInput = signingEntry.getKey();
                if (!psbtInput.isSigned()) {
                    psbtInput.sign(privKey);
                }
            }
        }
    }
}