Examples with TransactionInput org.bitcoinj.core.TransactionInput used on opensource projects

Example 1 with TransactionInput

use of org.bitcoinj.core.TransactionInput in project bitcoin-wallet by bitcoin-wallet.

the class SweepWalletFragment method requestWalletBalance.

private void requestWalletBalance() {
    ProgressDialogFragment.showProgress(fragmentManager, getString(R.string.sweep_wallet_fragment_request_wallet_balance_progress));
    final RequestWalletBalanceTask.ResultCallback callback = new RequestWalletBalanceTask.ResultCallback() {

        @Override
        public void onResult(final Set<UTXO> utxos) {
            ProgressDialogFragment.dismissProgress(fragmentManager);
            // Filter UTXOs we've already spent and sort the rest.
            final Set<Transaction> walletTxns = application.getWallet().getTransactions(false);
            final Set<UTXO> sortedUtxos = new TreeSet<>(UTXO_COMPARATOR);
            for (final UTXO utxo : utxos) if (!utxoSpentBy(walletTxns, utxo))
                sortedUtxos.add(utxo);
            // Fake transaction funding the wallet to sweep.
            final Map<Sha256Hash, Transaction> fakeTxns = new HashMap<>();
            for (final UTXO utxo : sortedUtxos) {
                Transaction fakeTx = fakeTxns.get(utxo.getHash());
                if (fakeTx == null) {
                    fakeTx = new FakeTransaction(Constants.NETWORK_PARAMETERS, utxo.getHash());
                    fakeTx.getConfidence().setConfidenceType(ConfidenceType.BUILDING);
                    fakeTxns.put(fakeTx.getHash(), fakeTx);
                }
                final TransactionOutput fakeOutput = new TransactionOutput(Constants.NETWORK_PARAMETERS, fakeTx, utxo.getValue(), utxo.getScript().getProgram());
                // Fill with output dummies as needed.
                while (fakeTx.getOutputs().size() < utxo.getIndex()) fakeTx.addOutput(new TransactionOutput(Constants.NETWORK_PARAMETERS, fakeTx, Coin.NEGATIVE_SATOSHI, new byte[] {}));
                // Add the actual output we will spend later.
                fakeTx.addOutput(fakeOutput);
            }
            walletToSweep.clearTransactions(0);
            for (final Transaction tx : fakeTxns.values()) walletToSweep.addWalletTransaction(new WalletTransaction(WalletTransaction.Pool.UNSPENT, tx));
            log.info("built wallet to sweep:\n{}", walletToSweep.toString(false, true, false, null));
            updateView();
        }

        private boolean utxoSpentBy(final Set<Transaction> transactions, final UTXO utxo) {
            for (final Transaction tx : transactions) {
                for (final TransactionInput input : tx.getInputs()) {
                    final TransactionOutPoint outpoint = input.getOutpoint();
                    if (outpoint.getHash().equals(utxo.getHash()) && outpoint.getIndex() == utxo.getIndex())
                        return true;
                }
            }
            return false;
        }

        @Override
        public void onFail(final int messageResId, final Object... messageArgs) {
            ProgressDialogFragment.dismissProgress(fragmentManager);
            final DialogBuilder dialog = DialogBuilder.warn(activity, R.string.sweep_wallet_fragment_request_wallet_balance_failed_title);
            dialog.setMessage(getString(messageResId, messageArgs));
            dialog.setPositiveButton(R.string.button_retry, new DialogInterface.OnClickListener() {

                @Override
                public void onClick(final DialogInterface dialog, final int which) {
                    requestWalletBalance();
                }
            });
            dialog.setNegativeButton(R.string.button_dismiss, null);
            dialog.show();
        }
    };
    final Address address = walletToSweep.getImportedKeys().iterator().next().toAddress(Constants.NETWORK_PARAMETERS);
    new RequestWalletBalanceTask(backgroundHandler, callback).requestWalletBalance(activity.getAssets(), address);
}

Example 2 with TransactionInput

use of org.bitcoinj.core.TransactionInput in project bisq-core by bisq-network.

the class WalletService method getOutputsWithConnectedOutputs.

protected List<TransactionOutput> getOutputsWithConnectedOutputs(Transaction tx) {
    List<TransactionOutput> transactionOutputs = tx.getOutputs();
    List<TransactionOutput> connectedOutputs = new ArrayList<>();
    // add all connected outputs from any inputs as well
    List<TransactionInput> transactionInputs = tx.getInputs();
    for (TransactionInput transactionInput : transactionInputs) {
        TransactionOutput transactionOutput = transactionInput.getConnectedOutput();
        if (transactionOutput != null) {
            connectedOutputs.add(transactionOutput);
        }
    }
    List<TransactionOutput> mergedOutputs = new ArrayList<>();
    mergedOutputs.addAll(transactionOutputs);
    mergedOutputs.addAll(connectedOutputs);
    return mergedOutputs;
}

Example 3 with TransactionInput

use of org.bitcoinj.core.TransactionInput in project bisq-core by bisq-network.

the class BsqWalletService method getPreparedVoteRevealTx.

// /////////////////////////////////////////////////////////////////////////////////////////
// MyVote reveal tx
// /////////////////////////////////////////////////////////////////////////////////////////
public Transaction getPreparedVoteRevealTx(TxOutput stakeTxOutput) {
    Transaction tx = new Transaction(params);
    final Coin stake = Coin.valueOf(stakeTxOutput.getValue());
    Transaction connectedOutputParentTransaction = getTransaction(stakeTxOutput.getTxId());
    TransactionOutPoint transactionOutPoint = new TransactionOutPoint(params, stakeTxOutput.getIndex(), connectedOutputParentTransaction);
    tx.addInput(new TransactionInput(params, tx, new byte[] {}, transactionOutPoint, stake));
    tx.addOutput(new TransactionOutput(params, tx, stake, getUnusedAddress()));
    printTx("getPreparedVoteRevealTx", tx);
    return tx;
}

Example 4 with TransactionInput

use of org.bitcoinj.core.TransactionInput in project bisq-core by bisq-network.

the class BtcWalletService method completePreparedBlindVoteTx.

// /////////////////////////////////////////////////////////////////////////////////////////
// Blind vote tx
// /////////////////////////////////////////////////////////////////////////////////////////
public Transaction completePreparedBlindVoteTx(Transaction feeTx, byte[] opReturnData) throws TransactionVerificationException, WalletException, InsufficientMoneyException {
    // (BsqFee)tx has following structure:
    // inputs [1-n] BSQ inputs (fee + stake)
    // outputs [1] BSQ stake
    // outputs [0-1] BSQ change output (>= 2730 Satoshi)
    // preparedVoteTx has following structure:
    // inputs [1-n] BSQ inputs for vote fee
    // inputs [1-n] BTC inputs for miner fee
    // outputs [1] BSQ stake
    // outputs [0-1] BSQ change output (>= 2730 Satoshi)
    // outputs [0-1] BTC change output from miner fee inputs (>= 2730 Satoshi)
    // outputs [0-1] OP_RETURN with opReturnData and amount 0
    // mining fee: BTC mining fee + burned BSQ fee
    Transaction preparedTx = new Transaction(params);
    // Copy inputs from BSQ fee tx
    feeTx.getInputs().forEach(preparedTx::addInput);
    int indexOfBtcFirstInput = feeTx.getInputs().size();
    // BSQ change outputs from BSQ fee inputs.
    feeTx.getOutputs().forEach(preparedTx::addOutput);
    // safety check counter to avoid endless loops
    int counter = 0;
    // estimated size of input sig
    final int sigSizePerInput = 106;
    // typical size for a tx with 3 inputs
    int txSizeWithUnsignedInputs = 300;
    final Coin txFeePerByte = feeService.getTxFeePerByte();
    Address changeAddress = getOrCreateAddressEntry(AddressEntry.Context.AVAILABLE).getAddress();
    checkNotNull(changeAddress, "changeAddress must not be null");
    final BtcCoinSelector coinSelector = new BtcCoinSelector(walletsSetup.getAddressesByContext(AddressEntry.Context.AVAILABLE));
    final List<TransactionInput> preparedBsqTxInputs = preparedTx.getInputs();
    final List<TransactionOutput> preparedBsqTxOutputs = preparedTx.getOutputs();
    int numInputs = preparedBsqTxInputs.size();
    Transaction resultTx = null;
    boolean isFeeOutsideTolerance;
    do {
        counter++;
        if (counter >= 10) {
            checkNotNull(resultTx, "resultTx must not be null");
            log.error("Could not calculate the fee. Tx=" + resultTx);
            break;
        }
        Transaction tx = new Transaction(params);
        preparedBsqTxInputs.forEach(tx::addInput);
        preparedBsqTxOutputs.forEach(tx::addOutput);
        SendRequest sendRequest = SendRequest.forTx(tx);
        sendRequest.shuffleOutputs = false;
        sendRequest.aesKey = aesKey;
        // signInputs needs to be false as it would try to sign all inputs (BSQ inputs are not in this wallet)
        sendRequest.signInputs = false;
        sendRequest.fee = txFeePerByte.multiply(txSizeWithUnsignedInputs + sigSizePerInput * numInputs);
        sendRequest.feePerKb = Coin.ZERO;
        sendRequest.ensureMinRequiredFee = false;
        sendRequest.coinSelector = coinSelector;
        sendRequest.changeAddress = changeAddress;
        wallet.completeTx(sendRequest);
        resultTx = sendRequest.tx;
        // add OP_RETURN output
        resultTx.addOutput(new TransactionOutput(params, resultTx, Coin.ZERO, ScriptBuilder.createOpReturnScript(opReturnData).getProgram()));
        numInputs = resultTx.getInputs().size();
        txSizeWithUnsignedInputs = resultTx.bitcoinSerialize().length;
        final long estimatedFeeAsLong = txFeePerByte.multiply(txSizeWithUnsignedInputs + sigSizePerInput * numInputs).value;
        // calculated fee must be inside of a tolerance range with tx fee
        isFeeOutsideTolerance = Math.abs(resultTx.getFee().value - estimatedFeeAsLong) > 1000;
    } while (isFeeOutsideTolerance);
    // Sign all BTC inputs
    for (int i = indexOfBtcFirstInput; i < resultTx.getInputs().size(); i++) {
        TransactionInput txIn = resultTx.getInputs().get(i);
        checkArgument(txIn.getConnectedOutput() != null && txIn.getConnectedOutput().isMine(wallet), "txIn.getConnectedOutput() is not in our wallet. That must not happen.");
        signTransactionInput(wallet, aesKey, resultTx, txIn, i);
        checkScriptSig(resultTx, txIn, i);
    }
    checkWalletConsistency(wallet);
    verifyTransaction(resultTx);
    printTx("BTC wallet: Signed tx", resultTx);
    return resultTx;
}

Example 5 with TransactionInput

use of org.bitcoinj.core.TransactionInput in project bisq-core by bisq-network.

the class TradeWalletService method emergencySignAndPublishPayoutTx.

// Emergency payout tool. Used only in cased when the payput from the arbitrator does not work because some data
// in the trade/dispute are messed up.
// We keep here arbitratorPayoutAmount just in case (requires cooperation from peer anyway)
public Transaction emergencySignAndPublishPayoutTx(String depositTxHex, Coin buyerPayoutAmount, Coin sellerPayoutAmount, Coin arbitratorPayoutAmount, Coin txFee, String buyerAddressString, String sellerAddressString, String arbitratorAddressString, @Nullable String buyerPrivateKeyAsHex, @Nullable String sellerPrivateKeyAsHex, String arbitratorPrivateKeyAsHex, String buyerPubKeyAsHex, String sellerPubKeyAsHex, String arbitratorPubKeyAsHex, String P2SHMultiSigOutputScript, FutureCallback<Transaction> callback) throws AddressFormatException, TransactionVerificationException, WalletException {
    log.info("signAndPublishPayoutTx called");
    log.info("depositTxHex " + depositTxHex);
    log.info("buyerPayoutAmount " + buyerPayoutAmount.toFriendlyString());
    log.info("sellerPayoutAmount " + sellerPayoutAmount.toFriendlyString());
    log.info("arbitratorPayoutAmount " + arbitratorPayoutAmount.toFriendlyString());
    log.info("buyerAddressString " + buyerAddressString);
    log.info("sellerAddressString " + sellerAddressString);
    log.info("arbitratorAddressString " + arbitratorAddressString);
    log.info("buyerPrivateKeyAsHex (not displayed for security reasons)");
    log.info("sellerPrivateKeyAsHex (not displayed for security reasons)");
    log.info("arbitratorPrivateKeyAsHex (not displayed for security reasons)");
    log.info("buyerPubKeyAsHex " + buyerPubKeyAsHex);
    log.info("sellerPubKeyAsHex " + sellerPubKeyAsHex);
    log.info("arbitratorPubKeyAsHex " + arbitratorPubKeyAsHex);
    log.info("P2SHMultiSigOutputScript " + P2SHMultiSigOutputScript);
    checkNotNull((buyerPrivateKeyAsHex != null || sellerPrivateKeyAsHex != null), "either buyerPrivateKeyAsHex or sellerPrivateKeyAsHex must not be null");
    byte[] buyerPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(buyerPubKeyAsHex)).getPubKey();
    byte[] sellerPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(sellerPubKeyAsHex)).getPubKey();
    final byte[] arbitratorPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(arbitratorPubKeyAsHex)).getPubKey();
    Script p2SHMultiSigOutputScript = getP2SHMultiSigOutputScript(buyerPubKey, sellerPubKey, arbitratorPubKey);
    Coin msOutput = buyerPayoutAmount.add(sellerPayoutAmount).add(arbitratorPayoutAmount).add(txFee);
    TransactionOutput p2SHMultiSigOutput = new TransactionOutput(params, null, msOutput, p2SHMultiSigOutputScript.getProgram());
    Transaction depositTx = new Transaction(params);
    depositTx.addOutput(p2SHMultiSigOutput);
    Transaction payoutTx = new Transaction(params);
    Sha256Hash spendTxHash = Sha256Hash.wrap(depositTxHex);
    payoutTx.addInput(new TransactionInput(params, depositTx, p2SHMultiSigOutputScript.getProgram(), new TransactionOutPoint(params, 0, spendTxHash), msOutput));
    if (buyerPayoutAmount.isGreaterThan(Coin.ZERO))
        payoutTx.addOutput(buyerPayoutAmount, Address.fromBase58(params, buyerAddressString));
    if (sellerPayoutAmount.isGreaterThan(Coin.ZERO))
        payoutTx.addOutput(sellerPayoutAmount, Address.fromBase58(params, sellerAddressString));
    if (arbitratorPayoutAmount.isGreaterThan(Coin.ZERO))
        payoutTx.addOutput(arbitratorPayoutAmount, Address.fromBase58(params, arbitratorAddressString));
    // take care of sorting!
    Script redeemScript = getMultiSigRedeemScript(buyerPubKey, sellerPubKey, arbitratorPubKey);
    Sha256Hash sigHash = payoutTx.hashForSignature(0, redeemScript, Transaction.SigHash.ALL, false);
    ECKey.ECDSASignature tradersSignature;
    if (buyerPrivateKeyAsHex != null && !buyerPrivateKeyAsHex.isEmpty()) {
        final ECKey buyerPrivateKey = ECKey.fromPrivate(Utils.HEX.decode(buyerPrivateKeyAsHex));
        checkNotNull(buyerPrivateKey, "buyerPrivateKey must not be null");
        tradersSignature = buyerPrivateKey.sign(sigHash, aesKey).toCanonicalised();
    } else {
        checkNotNull(sellerPrivateKeyAsHex, "sellerPrivateKeyAsHex must not be null");
        final ECKey sellerPrivateKey = ECKey.fromPrivate(Utils.HEX.decode(sellerPrivateKeyAsHex));
        checkNotNull(sellerPrivateKey, "sellerPrivateKey must not be null");
        tradersSignature = sellerPrivateKey.sign(sigHash, aesKey).toCanonicalised();
    }
    final ECKey key = ECKey.fromPrivate(Utils.HEX.decode(arbitratorPrivateKeyAsHex));
    checkNotNull(key, "key must not be null");
    ECKey.ECDSASignature arbitratorSignature = key.sign(sigHash, aesKey).toCanonicalised();
    TransactionSignature tradersTxSig = new TransactionSignature(tradersSignature, Transaction.SigHash.ALL, false);
    TransactionSignature arbitratorTxSig = new TransactionSignature(arbitratorSignature, Transaction.SigHash.ALL, false);
    // Take care of order of signatures. See comment below at getMultiSigRedeemScript (sort order needed here: arbitrator, seller, buyer)
    Script inputScript = ScriptBuilder.createP2SHMultiSigInputScript(ImmutableList.of(arbitratorTxSig, tradersTxSig), redeemScript);
    TransactionInput input = payoutTx.getInput(0);
    input.setScriptSig(inputScript);
    WalletService.printTx("payoutTx", payoutTx);
    WalletService.verifyTransaction(payoutTx);
    WalletService.checkWalletConsistency(wallet);
    broadcastTx(payoutTx, callback, 20);
    return payoutTx;
}