/**
* When the servers signature for the refund transaction is received, call this to verify it and
* sign the complete refund ourselves.
*
* <p>If this does not throw an exception, we are secure against the loss of funds and can safely
* provide the server with the multi-sig contract to lock in the agreement. In this case, both the
* multisig contract and the refund transaction are automatically committed to wallet so that it
* can handle broadcasting the refund transaction at the appropriate time if necessary.
*/
public synchronized void provideRefundSignature(byte[] theirSignature)
throws VerificationException {
checkNotNull(theirSignature);
checkState(state == State.WAITING_FOR_SIGNED_REFUND);
TransactionSignature theirSig = TransactionSignature.decodeFromBitcoin(theirSignature, true);
if (theirSig.sigHashMode() != Transaction.SigHash.NONE || !theirSig.anyoneCanPay())
throw new VerificationException("Refund signature was not SIGHASH_NONE|SIGHASH_ANYONECANPAY");
// Sign the refund transaction ourselves.
final TransactionOutput multisigContractOutput = multisigContract.getOutput(0);
try {
multisigScript = multisigContractOutput.getScriptPubKey();
} catch (ScriptException e) {
throw new RuntimeException(e); // Cannot happen: we built this ourselves.
}
TransactionSignature ourSignature =
refundTx.calculateSignature(0, myKey, multisigScript, Transaction.SigHash.ALL, false);
// Insert the signatures.
Script scriptSig = ScriptBuilder.createMultiSigInputScript(ourSignature, theirSig);
log.info("Refund scriptSig: {}", scriptSig);
log.info("Multi-sig contract scriptPubKey: {}", multisigScript);
TransactionInput refundInput = refundTx.getInput(0);
refundInput.setScriptSig(scriptSig);
refundInput.verify(multisigContractOutput);
state = State.SAVE_STATE_IN_WALLET;
}
public void putInternal(Transaction tx, Sha256Hash block_hash, StatusContext ctx) {
if (block_hash == null) {
ctx.setStatus("TX_SERIALIZE");
SerializedTransaction s_tx = new SerializedTransaction(tx);
ctx.setStatus("TX_PUT");
// System.out.println("Transaction " + tx.getHash() + " " + Util.measureSerialization(s_tx));
file_db.getTransactionMap().put(tx.getHash(), s_tx);
}
// putTxOutSpents(tx);
boolean confirmed = (block_hash != null);
ctx.setStatus("TX_GET_ADDR");
Collection<String> addrs = getAllAddresses(tx, confirmed);
Random rnd = new Random();
ctx.setStatus("TX_SAVE_ADDRESS");
file_db.addAddressesToTxMap(addrs, tx.getHash());
imported_transactions.incrementAndGet();
int h = -1;
if (block_hash != null) {
ctx.setStatus("TX_GET_HEIGHT");
h = block_store.getHeight(block_hash);
}
ctx.setStatus("TX_NOTIFY");
jelly.getElectrumNotifier().notifyNewTransaction(tx, addrs, h);
ctx.setStatus("TX_DONE");
}
/**
* Updates the outputs on the payment contract transaction and re-signs it. The state must be
* READY in order to call this method. The signature that is returned should be sent to the server
* so it has the ability to broadcast the best seen payment when the channel closes or times out.
*
* <p>The returned signature is over the payment transaction, which we never have a valid copy of
* and thus there is no accessor for it on this object.
*
* <p>To spend the whole channel increment by {@link PaymentChannelClientState#getTotalValue()} -
* {@link PaymentChannelClientState#getValueRefunded()}
*
* @param size How many satoshis to increment the payment by (note: not the new total).
* @throws ValueOutOfRangeException If size is negative or the channel does not have sufficient
* money in it to complete this payment.
*/
public synchronized IncrementedPayment incrementPaymentBy(Coin size)
throws ValueOutOfRangeException {
checkState(state == State.READY);
checkNotExpired();
checkNotNull(size); // Validity of size will be checked by makeUnsignedChannelContract.
if (size.signum() < 0) throw new ValueOutOfRangeException("Tried to decrement payment");
Coin newValueToMe = valueToMe.subtract(size);
if (newValueToMe.compareTo(Transaction.MIN_NONDUST_OUTPUT) < 0 && newValueToMe.signum() > 0) {
log.info(
"New value being sent back as change was smaller than minimum nondust output, sending all");
size = valueToMe;
newValueToMe = Coin.ZERO;
}
if (newValueToMe.signum() < 0)
throw new ValueOutOfRangeException(
"Channel has too little money to pay " + size + " satoshis");
Transaction tx = makeUnsignedChannelContract(newValueToMe);
log.info("Signing new payment tx {}", tx);
Transaction.SigHash mode;
// If we spent all the money we put into this channel, we (by definition) don't care what the
// outputs are, so
// we sign with SIGHASH_NONE to let the server do what it wants.
if (newValueToMe.equals(Coin.ZERO)) mode = Transaction.SigHash.NONE;
else mode = Transaction.SigHash.SINGLE;
TransactionSignature sig = tx.calculateSignature(0, myKey, multisigScript, mode, true);
valueToMe = newValueToMe;
updateChannelInWallet();
IncrementedPayment payment = new IncrementedPayment();
payment.signature = sig;
payment.amount = size;
return payment;
}
@Override
public void deserializeWalletExtension(Wallet containingWallet, byte[] data) throws Exception {
lock.lock();
try {
checkState(this.containingWallet == null || this.containingWallet == containingWallet);
this.containingWallet = containingWallet;
NetworkParameters params = containingWallet.getParams();
ClientState.StoredClientPaymentChannels states =
ClientState.StoredClientPaymentChannels.parseFrom(data);
for (ClientState.StoredClientPaymentChannel storedState : states.getChannelsList()) {
Transaction refundTransaction =
new Transaction(params, storedState.getRefundTransaction().toByteArray());
refundTransaction.getConfidence().setSource(TransactionConfidence.Source.SELF);
StoredClientChannel channel =
new StoredClientChannel(
new Sha256Hash(storedState.getId().toByteArray()),
new Transaction(params, storedState.getContractTransaction().toByteArray()),
refundTransaction,
new ECKey(new BigInteger(1, storedState.getMyKey().toByteArray()), null, true),
BigInteger.valueOf(storedState.getValueToMe()),
BigInteger.valueOf(storedState.getRefundFees()),
false);
if (storedState.hasCloseTransactionHash())
channel.close =
containingWallet.getTransaction(new Sha256Hash(storedState.toByteArray()));
putChannel(channel, false);
}
} finally {
lock.unlock();
}
}
public Address getAddressForInput(TransactionInput in, boolean confirmed) {
if (in.isCoinBase()) return null;
try {
Address a = in.getFromAddress();
return a;
} catch (ScriptException e) {
// Lets try this the other way
try {
TransactionOutPoint out_p = in.getOutpoint();
Transaction src_tx = null;
while (src_tx == null) {
src_tx = getTransaction(out_p.getHash());
if (src_tx == null) {
if (!confirmed) {
return null;
}
System.out.println("Unable to get source transaction: " + out_p.getHash());
try {
Thread.sleep(500);
} catch (Exception e7) {
}
}
}
TransactionOutput out = src_tx.getOutput((int) out_p.getIndex());
Address a = getAddressForOutput(out);
return a;
} catch (ScriptException e2) {
return null;
}
}
}
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
final ViewGroup row;
if (convertView == null)
row = (ViewGroup) getLayoutInflater(null).inflate(R.layout.block_row, null);
else row = (ViewGroup) convertView;
final StoredBlock storedBlock = getItem(position);
final Block header = storedBlock.getHeader();
final TextView rowHeight = (TextView) row.findViewById(R.id.block_list_row_height);
final int height = storedBlock.getHeight();
rowHeight.setText(Integer.toString(height));
final TextView rowTime = (TextView) row.findViewById(R.id.block_list_row_time);
final long timeMs = header.getTimeSeconds() * DateUtils.SECOND_IN_MILLIS;
rowTime.setText(
DateUtils.getRelativeDateTimeString(
activity, timeMs, DateUtils.MINUTE_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0));
final TextView rowHash = (TextView) row.findViewById(R.id.block_list_row_hash);
rowHash.setText(WalletUtils.formatHash(null, header.getHashAsString(), 8, 0, ' '));
final int transactionChildCount = row.getChildCount() - ROW_BASE_CHILD_COUNT;
int iTransactionView = 0;
if (transactions != null) {
final String precision =
prefs.getString(
Constants.PREFS_KEY_BTC_PRECISION, Constants.PREFS_DEFAULT_BTC_PRECISION);
final int btcPrecision = precision.charAt(0) - '0';
final int btcShift = precision.length() == 3 ? precision.charAt(2) - '0' : 0;
transactionsAdapter.setPrecision(btcPrecision, btcShift);
for (final Transaction tx : transactions) {
if (tx.getAppearsInHashes().containsKey(header.getHash())) {
final View view;
if (iTransactionView < transactionChildCount) {
view = row.getChildAt(ROW_INSERT_INDEX + iTransactionView);
} else {
view = getLayoutInflater(null).inflate(R.layout.transaction_row_oneline, null);
row.addView(view, ROW_INSERT_INDEX + iTransactionView);
}
transactionsAdapter.bindView(view, tx);
iTransactionView++;
}
}
}
final int leftoverTransactionViews = transactionChildCount - iTransactionView;
if (leftoverTransactionViews > 0)
row.removeViews(ROW_INSERT_INDEX + iTransactionView, leftoverTransactionViews);
return row;
}
/** Returns true if the tx is a valid settlement transaction. */
public synchronized boolean isSettlementTransaction(Transaction tx) {
try {
tx.verify();
tx.getInput(0).verify(multisigContract.getOutput(0));
return true;
} catch (VerificationException e) {
return false;
}
}
private synchronized Transaction makeUnsignedChannelContract(Coin valueToMe)
throws ValueOutOfRangeException {
Transaction tx = new Transaction(wallet.getParams());
tx.addInput(multisigContract.getOutput(0));
// Our output always comes first.
// TODO: We should drop myKey in favor of output key + multisig key separation
// (as its always obvious who the client is based on T2 output order)
tx.addOutput(valueToMe, myKey.toAddress(wallet.getParams()));
return tx;
}
/** Returns a {@link Wallet.SendRequest} suitable for broadcasting to the network. */
public Wallet.SendRequest getSendRequest() {
Transaction tx = new Transaction(params);
for (Protos.Output output : paymentDetails.getOutputsList())
tx.addOutput(
new TransactionOutput(
params,
tx,
BigInteger.valueOf(output.getAmount()),
output.getScript().toByteArray()));
return Wallet.SendRequest.forTx(tx);
}
public void sweepKey(ECKey key, long fee, int accountId, JSONArray outputs) {
mLogger.info("sweepKey starting");
mLogger.info("key addr " + key.toAddress(mParams).toString());
Transaction tx = new Transaction(mParams);
long balance = 0;
ArrayList<Script> scripts = new ArrayList<Script>();
try {
for (int ii = 0; ii < outputs.length(); ++ii) {
JSONObject output;
output = outputs.getJSONObject(ii);
String tx_hash = output.getString("tx_hash");
int tx_output_n = output.getInt("tx_output_n");
String script = output.getString("script");
// Reverse byte order, create hash.
Sha256Hash hash = new Sha256Hash(WalletUtil.msgHexToBytes(tx_hash));
tx.addInput(
new TransactionInput(
mParams, tx, new byte[] {}, new TransactionOutPoint(mParams, tx_output_n, hash)));
scripts.add(new Script(Hex.decode(script)));
balance += output.getLong("value");
}
} catch (JSONException e) {
e.printStackTrace();
throw new RuntimeException("trouble parsing unspent outputs");
}
// Compute balance - fee.
long amount = balance - fee;
mLogger.info(String.format("sweeping %d", amount));
// Figure out the destination address.
Address to = mHDWallet.nextReceiveAddress(accountId);
mLogger.info("sweeping to " + to.toString());
// Add output.
tx.addOutput(BigInteger.valueOf(amount), to);
WalletUtil.signTransactionInputs(tx, Transaction.SigHash.ALL, key, scripts);
mLogger.info("tx bytes: " + new String(Hex.encode(tx.bitcoinSerialize())));
// mKit.peerGroup().broadcastTransaction(tx);
broadcastTransaction(mKit.peerGroup(), tx);
mLogger.info("sweepKey finished");
}
/**
* Creates the initial multisig contract and incomplete refund transaction which can be requested
* at the appropriate time using {@link PaymentChannelClientState#getIncompleteRefundTransaction}
* and {@link PaymentChannelClientState#getMultisigContract()}. The way the contract is crafted
* can be adjusted by overriding {@link
* PaymentChannelClientState#editContractSendRequest(com.google.bitcoin.core.Wallet.SendRequest)}.
* By default unconfirmed coins are allowed to be used, as for micropayments the risk should be
* relatively low.
*
* @throws ValueOutOfRangeException if the value being used is too small to be accepted by the
* network
* @throws InsufficientMoneyException if the wallet doesn't contain enough balance to initiate
*/
public synchronized void initiate() throws ValueOutOfRangeException, InsufficientMoneyException {
final NetworkParameters params = wallet.getParams();
Transaction template = new Transaction(params);
// We always place the client key before the server key because, if either side wants some
// privacy, they can
// use a fresh key for the the multisig contract and nowhere else
List<ECKey> keys = Lists.newArrayList(myKey, serverMultisigKey);
// There is also probably a change output, but we don't bother shuffling them as it's obvious
// from the
// format which one is the change. If we start obfuscating the change output better in future
// this may
// be worth revisiting.
TransactionOutput multisigOutput =
template.addOutput(totalValue, ScriptBuilder.createMultiSigOutputScript(2, keys));
if (multisigOutput.getMinNonDustValue().compareTo(totalValue) > 0)
throw new ValueOutOfRangeException("totalValue too small to use");
Wallet.SendRequest req = Wallet.SendRequest.forTx(template);
req.coinSelector = AllowUnconfirmedCoinSelector.get();
editContractSendRequest(req);
req.shuffleOutputs = false; // TODO: Fix things so shuffling is usable.
wallet.completeTx(req);
Coin multisigFee = req.tx.getFee();
multisigContract = req.tx;
// Build a refund transaction that protects us in the case of a bad server that's just trying to
// cause havoc
// by locking up peoples money (perhaps as a precursor to a ransom attempt). We time lock it so
// the server
// has an assurance that we cannot take back our money by claiming a refund before the channel
// closes - this
// relies on the fact that since Bitcoin 0.8 time locked transactions are non-final. This will
// need to change
// in future as it breaks the intended design of timelocking/tx replacement, but for now it
// simplifies this
// specific protocol somewhat.
refundTx = new Transaction(params);
refundTx
.addInput(multisigOutput)
.setSequenceNumber(0); // Allow replacement when it's eventually reactivated.
refundTx.setLockTime(expiryTime);
if (totalValue.compareTo(Coin.CENT) < 0) {
// Must pay min fee.
final Coin valueAfterFee = totalValue.subtract(Transaction.REFERENCE_DEFAULT_MIN_TX_FEE);
if (Transaction.MIN_NONDUST_OUTPUT.compareTo(valueAfterFee) > 0)
throw new ValueOutOfRangeException("totalValue too small to use");
refundTx.addOutput(valueAfterFee, myKey.toAddress(params));
refundFees = multisigFee.add(Transaction.REFERENCE_DEFAULT_MIN_TX_FEE);
} else {
refundTx.addOutput(totalValue, myKey.toAddress(params));
refundFees = multisigFee;
}
refundTx.getConfidence().setSource(TransactionConfidence.Source.SELF);
log.info(
"initiated channel with multi-sig contract {}, refund {}",
multisigContract.getHashAsString(),
refundTx.getHashAsString());
state = State.INITIATED;
// Client should now call getIncompleteRefundTransaction() and send it to the server.
}
@Override
public Set<Transaction> loadInBackground() {
final Set<Transaction> transactions = wallet.getTransactions(true);
final Set<Transaction> filteredTransactions = new HashSet<Transaction>(transactions.size());
for (final Transaction tx : transactions) {
final Map<Sha256Hash, Integer> appearsIn = tx.getAppearsInHashes();
if (appearsIn != null && !appearsIn.isEmpty()) // TODO filter by updateTime
filteredTransactions.add(tx);
}
return filteredTransactions;
}
public Collection<String> getAllAddresses(Transaction tx, boolean confirmed) {
HashSet<String> lst = new HashSet<String>();
for (TransactionInput in : tx.getInputs()) {
Address a = getAddressForInput(in, confirmed);
if (a != null) lst.add(a.toString());
}
for (TransactionOutput out : tx.getOutputs()) {
Address a = getAddressForOutput(out);
if (a != null) lst.add(a.toString());
}
return lst;
}
public static void signTransaction(Transaction tx, String qrCodeContent) throws ScriptException {
String[] stringArray = qrCodeContent.split(StringUtil.QR_CODE_SPLIT);
List<String> hashList = new ArrayList<String>();
for (String str : stringArray) {
if (!StringUtil.isEmpty(str)) {
hashList.add(str);
LogUtil.d("sign", str);
}
}
for (int i = 0; i < tx.getInputs().size(); i++) {
TransactionInput input = tx.getInputs().get(i);
String str = hashList.get(i);
input.setScriptSig(new Script(StringUtil.hexStringToByteArray(str)));
input
.getScriptSig()
.correctlySpends(tx, i, input.getOutpoint().getConnectedOutput().getScriptPubKey(), true);
}
}
PaymentChannelClientState(StoredClientChannel storedClientChannel, Wallet wallet)
throws VerificationException {
// The PaymentChannelClientConnection handles storedClientChannel.active and ensures we aren't
// resuming channels
this.wallet = checkNotNull(wallet);
this.multisigContract = checkNotNull(storedClientChannel.contract);
this.multisigScript = multisigContract.getOutput(0).getScriptPubKey();
this.refundTx = checkNotNull(storedClientChannel.refund);
this.refundFees = checkNotNull(storedClientChannel.refundFees);
this.expiryTime = refundTx.getLockTime();
this.myKey = checkNotNull(storedClientChannel.myKey);
this.serverMultisigKey = null;
this.totalValue = multisigContract.getOutput(0).getValue();
this.valueToMe = checkNotNull(storedClientChannel.valueToMe);
this.storedChannel = storedClientChannel;
this.state = State.READY;
initWalletListeners();
}
public void broadcastTransaction(@Nonnull final Transaction tx) {
final Intent intent =
new Intent(
BlockchainService.ACTION_BROADCAST_TRANSACTION,
null,
this,
BlockchainServiceImpl.class);
intent.putExtra(BlockchainService.ACTION_BROADCAST_TRANSACTION_HASH, tx.getHash().getBytes());
startService(intent);
}
public void putTxOutSpents(Transaction tx) {
LinkedList<String> tx_outs = new LinkedList<String>();
for (TransactionInput in : tx.getInputs()) {
if (!in.isCoinBase()) {
TransactionOutPoint out = in.getOutpoint();
String key = out.getHash().toString() + ":" + out.getIndex();
// file_db.addTxOutSpentByMap(key, tx.getHash());
tx_outs.add(key);
}
}
}
@Override
public String toString() {
final String newline = String.format("%n");
final String closeStr =
close == null ? "still open" : close.toString().replaceAll(newline, newline + " ");
return String.format(
"Stored client channel for server ID %s (%s)%n"
+ " Key: %s%n"
+ " Value left: %d%n"
+ " Refund fees: %d%n"
+ " Contract: %s"
+ "Refund: %s"
+ "Close: %s",
id,
active ? "active" : "inactive",
myKey,
valueToMe,
refundFees,
contract.toString().replaceAll(newline, newline + " "),
refund.toString().replaceAll(newline, newline + " "),
closeStr);
}
@Test
public void testCreateMultiSigInputScript() throws AddressFormatException {
// Setup transaction and signatures
ECKey key1 =
new DumpedPrivateKey(params, "cVLwRLTvz3BxDAWkvS3yzT9pUcTCup7kQnfT2smRjvmmm1wAP6QT")
.getKey();
ECKey key2 =
new DumpedPrivateKey(params, "cTine92s8GLpVqvebi8rYce3FrUYq78ZGQffBYCS1HmDPJdSTxUo")
.getKey();
ECKey key3 =
new DumpedPrivateKey(params, "cVHwXSPRZmL9adctwBwmn4oTZdZMbaCsR5XF6VznqMgcvt1FDDxg")
.getKey();
Script multisigScript =
ScriptBuilder.createMultiSigOutputScript(2, Arrays.asList(key1, key2, key3));
byte[] bytes =
Hex.decode(
"01000000013df681ff83b43b6585fa32dd0e12b0b502e6481e04ee52ff0fdaf55a16a4ef61000000006b483045022100a84acca7906c13c5895a1314c165d33621cdcf8696145080895cbf301119b7cf0220730ff511106aa0e0a8570ff00ee57d7a6f24e30f592a10cae1deffac9e13b990012102b8d567bcd6328fd48a429f9cf4b315b859a58fd28c5088ef3cb1d98125fc4e8dffffffff02364f1c00000000001976a91439a02793b418de8ec748dd75382656453dc99bcb88ac40420f000000000017a9145780b80be32e117f675d6e0ada13ba799bf248e98700000000");
Transaction transaction = new Transaction(params, bytes);
TransactionOutput output = transaction.getOutput(1);
Transaction spendTx = new Transaction(params);
Address address = new Address(params, "n3CFiCmBXVt5d3HXKQ15EFZyhPz4yj5F3H");
Script outputScript = ScriptBuilder.createOutputScript(address);
spendTx.addOutput(output.getValue(), outputScript);
spendTx.addInput(output);
Sha256Hash sighash = spendTx.hashForSignature(0, multisigScript, SigHash.ALL, false);
ECKey.ECDSASignature party1Signature = key1.sign(sighash);
ECKey.ECDSASignature party2Signature = key2.sign(sighash);
TransactionSignature party1TransactionSignature =
new TransactionSignature(party1Signature, SigHash.ALL, false);
TransactionSignature party2TransactionSignature =
new TransactionSignature(party2Signature, SigHash.ALL, false);
// Create p2sh multisig input script
Script inputScript =
ScriptBuilder.createP2SHMultiSigInputScript(
ImmutableList.of(party1TransactionSignature, party2TransactionSignature),
multisigScript.getProgram());
// Assert that the input script contains 4 chunks
assertTrue(inputScript.getChunks().size() == 4);
// Assert that the input script created contains the original multisig
// script as the last chunk
ScriptChunk scriptChunk = inputScript.getChunks().get(inputScript.getChunks().size() - 1);
Assert.assertArrayEquals(scriptChunk.data, multisigScript.getProgram());
// Create regular multisig input script
inputScript =
ScriptBuilder.createMultiSigInputScript(
ImmutableList.of(party1TransactionSignature, party2TransactionSignature));
// Assert that the input script only contains 3 chunks
assertTrue(inputScript.getChunks().size() == 3);
// Assert that the input script created does not end with the original
// multisig script
scriptChunk = inputScript.getChunks().get(inputScript.getChunks().size() - 1);
Assert.assertThat(scriptChunk.data, IsNot.not(IsEqual.equalTo(multisigScript.getProgram())));
}
private void readTransaction(Protos.Transaction txProto, NetworkParameters params) {
Transaction tx = new Transaction(params);
if (txProto.hasUpdatedAt()) {
tx.setUpdateTime(new Date(txProto.getUpdatedAt()));
}
for (Protos.TransactionOutput outputProto : txProto.getTransactionOutputList()) {
BigInteger value = BigInteger.valueOf(outputProto.getValue());
byte[] scriptBytes = outputProto.getScriptBytes().toByteArray();
TransactionOutput output = new TransactionOutput(params, tx, value, scriptBytes);
tx.addOutput(output);
}
for (Protos.TransactionInput transactionInput : txProto.getTransactionInputList()) {
byte[] scriptBytes = transactionInput.getScriptBytes().toByteArray();
TransactionOutPoint outpoint =
new TransactionOutPoint(
params,
transactionInput.getTransactionOutPointIndex(),
byteStringToHash(transactionInput.getTransactionOutPointHash()));
TransactionInput input = new TransactionInput(params, tx, scriptBytes, outpoint);
if (transactionInput.hasSequence()) {
input.setSequenceNumber(transactionInput.getSequence());
}
tx.addInput(input);
}
for (ByteString blockHash : txProto.getBlockHashList()) {
tx.addBlockAppearance(byteStringToHash(blockHash));
}
if (txProto.hasLockTime()) {
tx.setLockTime(0xffffffffL & txProto.getLockTime());
}
// Transaction should now be complete.
Sha256Hash protoHash = byteStringToHash(txProto.getHash());
Preconditions.checkState(
tx.getHash().equals(protoHash),
"Transaction did not deserialize completely: %s vs %s",
tx.getHash(),
protoHash);
Preconditions.checkState(
!txMap.containsKey(txProto.getHash()),
"Wallet contained duplicate transaction %s",
byteStringToHash(txProto.getHash()));
txMap.put(txProto.getHash(), tx);
}
@VisibleForTesting
synchronized void doStoreChannelInWallet(Sha256Hash id) {
StoredPaymentChannelClientStates channels =
(StoredPaymentChannelClientStates)
wallet.getExtensions().get(StoredPaymentChannelClientStates.EXTENSION_ID);
checkNotNull(
channels,
"You have not added the StoredPaymentChannelClientStates extension to the wallet.");
checkState(channels.getChannel(id, multisigContract.getHash()) == null);
storedChannel =
new StoredClientChannel(id, multisigContract, refundTx, myKey, valueToMe, refundFees, true);
channels.putChannel(storedChannel);
wallet.addOrUpdateExtension(channels);
}
/**
* Generates a Payment message based on the information in the PaymentRequest. Provide
* transactions built by the wallet. If the PaymentRequest did not specify a payment_url, returns
* null.
*
* @param txns list of transactions to be included with the Payment message.
* @param refundAddr will be used by the merchant to send money back if there was a problem.
* @param memo is a message to include in the payment message sent to the merchant.
*/
public @Nullable Protos.Payment getPayment(
List<Transaction> txns, @Nullable Address refundAddr, @Nullable String memo)
throws IOException {
if (!paymentDetails.hasPaymentUrl()) return null;
Protos.Payment.Builder payment = Protos.Payment.newBuilder();
if (paymentDetails.hasMerchantData()) payment.setMerchantData(paymentDetails.getMerchantData());
if (refundAddr != null) {
Protos.Output.Builder refundOutput = Protos.Output.newBuilder();
refundOutput.setAmount(totalValue.longValue());
refundOutput.setScript(
ByteString.copyFrom(ScriptBuilder.createOutputScript(refundAddr).getProgram()));
payment.addRefundTo(refundOutput);
}
if (memo != null) {
payment.setMemo(memo);
}
for (Transaction txn : txns) {
txn.verify();
ByteArrayOutputStream o = new ByteArrayOutputStream();
txn.bitcoinSerialize(o);
payment.addTransactions(ByteString.copyFrom(o.toByteArray()));
}
return payment.build();
}
private WalletTransaction connectTransactionOutputs(
org.bitcoinj.wallet.Protos.Transaction txProto) {
Transaction tx = txMap.get(txProto.getHash());
WalletTransaction.Pool pool = WalletTransaction.Pool.valueOf(txProto.getPool().getNumber());
if (pool == WalletTransaction.Pool.INACTIVE
|| pool == WalletTransaction.Pool.PENDING_INACTIVE) {
// Upgrade old wallets: inactive pool has been merged with the pending pool.
// Remove this some time after 0.9 is old and everyone has upgraded.
// There should not be any spent outputs in this tx as old wallets would not allow them to be
// spent
// in this state.
pool = WalletTransaction.Pool.PENDING;
}
for (int i = 0; i < tx.getOutputs().size(); i++) {
TransactionOutput output = tx.getOutputs().get(i);
final Protos.TransactionOutput transactionOutput = txProto.getTransactionOutput(i);
if (transactionOutput.hasSpentByTransactionHash()) {
final ByteString spentByTransactionHash = transactionOutput.getSpentByTransactionHash();
Transaction spendingTx = txMap.get(spentByTransactionHash);
if (spendingTx == null)
throw new IllegalArgumentException(
String.format(
"Could not connect %s to %s",
tx.getHashAsString(), byteStringToHash(spentByTransactionHash)));
final int spendingIndex = transactionOutput.getSpentByTransactionIndex();
TransactionInput input = checkNotNull(spendingTx.getInput(spendingIndex));
input.connect(output);
}
}
if (txProto.hasConfidence()) {
Protos.TransactionConfidence confidenceProto = txProto.getConfidence();
TransactionConfidence confidence = tx.getConfidence();
readConfidence(tx, confidenceProto, confidence);
}
return new WalletTransaction(pool, tx);
}
@Test
public void dataDrivenInvalidTransactions() throws Exception {
BufferedReader in =
new BufferedReader(
new InputStreamReader(
getClass().getResourceAsStream("tx_invalid.json"), Charset.forName("UTF-8")));
NetworkParameters params = TestNet3Params.get();
// Poor man's (aka. really, really poor) JSON parser (because pulling in a lib for this is
// probably overkill)
List<JSONObject> tx = new ArrayList<JSONObject>(1);
in.read(); // remove first [
StringBuffer buffer = new StringBuffer(1000);
while (in.ready()) {
String line = in.readLine();
if (line == null || line.equals("")) continue;
buffer.append(line);
if (line.equals("]") && buffer.toString().equals("]") && !in.ready()) break; // ignore last ]
boolean isFinished = appendToList(tx, buffer);
while (tx.size() > 0
&& tx.get(0).isList()
&& tx.get(0).list.size() == 1
&& tx.get(0).list.get(0).isString()) tx.remove(0);
if (isFinished && tx.size() == 1 && tx.get(0).list.size() == 3) {
HashMap<TransactionOutPoint, Script> scriptPubKeys =
new HashMap<TransactionOutPoint, Script>();
for (JSONObject input : tx.get(0).list.get(0).list) {
String hash = input.list.get(0).string;
int index = input.list.get(1).integer;
String script = input.list.get(2).string;
Sha256Hash sha256Hash =
new Sha256Hash(Hex.decode(hash.getBytes(Charset.forName("UTF-8"))));
scriptPubKeys.put(
new TransactionOutPoint(params, index, sha256Hash), parseScriptString(script));
}
byte[] bytes = tx.get(0).list.get(1).string.getBytes(Charset.forName("UTF-8"));
Transaction transaction = new Transaction(params, Hex.decode(bytes));
boolean enforceP2SH = tx.get(0).list.get(2).booleanValue;
assertTrue(tx.get(0).list.get(2).isBoolean());
boolean valid = true;
try {
transaction.verify();
} catch (VerificationException e) {
valid = false;
}
// The reference client checks this case in CheckTransaction, but we leave it to
// later where we will see an attempt to double-spend, so we explicitly check here
HashSet<TransactionOutPoint> set = new HashSet<TransactionOutPoint>();
for (TransactionInput input : transaction.getInputs()) {
if (set.contains(input.getOutpoint())) valid = false;
set.add(input.getOutpoint());
}
for (int i = 0; i < transaction.getInputs().size() && valid; i++) {
TransactionInput input = transaction.getInputs().get(i);
assertTrue(scriptPubKeys.containsKey(input.getOutpoint()));
try {
input
.getScriptSig()
.correctlySpends(
transaction, i, scriptPubKeys.get(input.getOutpoint()), enforceP2SH);
} catch (VerificationException e) {
valid = false;
}
}
if (valid) fail();
tx.clear();
}
}
in.close();
}
private void readConfidence(
Transaction tx,
Protos.TransactionConfidence confidenceProto,
TransactionConfidence confidence) {
// We are lenient here because tx confidence is not an essential part of the wallet.
// If the tx has an unknown type of confidence, ignore.
if (!confidenceProto.hasType()) {
log.warn("Unknown confidence type for tx {}", tx.getHashAsString());
return;
}
ConfidenceType confidenceType;
switch (confidenceProto.getType()) {
case BUILDING:
confidenceType = ConfidenceType.BUILDING;
break;
case DEAD:
confidenceType = ConfidenceType.DEAD;
break;
// These two are equivalent (must be able to read old wallets).
case NOT_IN_BEST_CHAIN:
confidenceType = ConfidenceType.PENDING;
break;
case NOT_SEEN_IN_CHAIN:
confidenceType = ConfidenceType.PENDING;
break;
case UNKNOWN:
// Fall through.
default:
confidenceType = ConfidenceType.UNKNOWN;
break;
}
confidence.setConfidenceType(confidenceType);
if (confidenceProto.hasAppearedAtHeight()) {
if (confidence.getConfidenceType() != ConfidenceType.BUILDING) {
log.warn("Have appearedAtHeight but not BUILDING for tx {}", tx.getHashAsString());
return;
}
confidence.setAppearedAtChainHeight(confidenceProto.getAppearedAtHeight());
}
if (confidenceProto.hasDepth()) {
if (confidence.getConfidenceType() != ConfidenceType.BUILDING) {
log.warn("Have depth but not BUILDING for tx {}", tx.getHashAsString());
return;
}
confidence.setDepthInBlocks(confidenceProto.getDepth());
}
if (confidenceProto.hasWorkDone()) {
if (confidence.getConfidenceType() != ConfidenceType.BUILDING) {
log.warn("Have workDone but not BUILDING for tx {}", tx.getHashAsString());
return;
}
confidence.setWorkDone(BigInteger.valueOf(confidenceProto.getWorkDone()));
}
if (confidenceProto.hasOverridingTransaction()) {
if (confidence.getConfidenceType() != ConfidenceType.DEAD) {
log.warn("Have overridingTransaction but not OVERRIDDEN for tx {}", tx.getHashAsString());
return;
}
Transaction overridingTransaction = txMap.get(confidenceProto.getOverridingTransaction());
if (overridingTransaction == null) {
log.warn(
"Have overridingTransaction that is not in wallet for tx {}", tx.getHashAsString());
return;
}
confidence.setOverridingTransaction(overridingTransaction);
}
for (Protos.PeerAddress proto : confidenceProto.getBroadcastByList()) {
InetAddress ip;
try {
ip = InetAddress.getByAddress(proto.getIpAddress().toByteArray());
} catch (UnknownHostException e) {
throw new RuntimeException(e); // IP address is of invalid length.
}
int port = proto.getPort();
PeerAddress address = new PeerAddress(ip, port);
address.setServices(BigInteger.valueOf(proto.getServices()));
confidence.markBroadcastBy(address);
}
switch (confidenceProto.getSource()) {
case SOURCE_SELF:
confidence.setSource(TransactionConfidence.Source.SELF);
break;
case SOURCE_NETWORK:
confidence.setSource(TransactionConfidence.Source.NETWORK);
break;
case SOURCE_UNKNOWN:
// Fall through.
default:
confidence.setSource(TransactionConfidence.Source.UNKNOWN);
break;
}
}
@Override
public int compare(Transaction lhs, Transaction rhs) {
return lhs.getUpdateTime().compareTo(rhs.getUpdateTime());
}
public static List<Transaction> getTransactionsFromBither(
JSONObject jsonObject, int storeBlockHeight)
throws JSONException, WrongNetworkException, AddressFormatException, VerificationException,
ParseException, NoSuchFieldException, IllegalAccessException, IllegalArgumentException {
List<Transaction> transactions = new ArrayList<Transaction>();
if (!jsonObject.isNull(TXS)) {
JSONArray txArray = jsonObject.getJSONArray(TXS);
double count = 0;
double size = txArray.length();
for (int j = 0; j < txArray.length(); j++) {
JSONObject tranJsonObject = txArray.getJSONObject(j);
String blockHash = tranJsonObject.getString(BITHER_BLOCK_HASH);
String txHash = tranJsonObject.getString(TX_HASH);
int height = tranJsonObject.getInt(BITHER_BLOCK_NO);
if (height > storeBlockHeight && storeBlockHeight > 0) {
continue;
}
int version = 1;
Date updateTime = new Date();
if (!tranJsonObject.isNull(EXPLORER_TIME)) {
updateTime = DateTimeUtil.getDateTimeForTimeZone(tranJsonObject.getString(EXPLORER_TIME));
}
if (!tranJsonObject.isNull(EXPLORER_VERSION)) {
version = tranJsonObject.getInt(EXPLORER_VERSION);
}
Transaction transaction =
new Transaction(BitherSetting.NETWORK_PARAMETERS, version, new Sha256Hash(txHash));
transaction.addBlockAppearance(new Sha256Hash(blockHash), height);
if (!tranJsonObject.isNull(EXPLORER_OUT)) {
JSONArray tranOutArray = tranJsonObject.getJSONArray(EXPLORER_OUT);
for (int i = 0; i < tranOutArray.length(); i++) {
JSONObject tranOutJson = tranOutArray.getJSONObject(i);
BigInteger value = BigInteger.valueOf(tranOutJson.getLong(BITHER_VALUE));
if (!tranOutJson.isNull(SCRIPT_PUB_KEY)) {
String str = tranOutJson.getString(SCRIPT_PUB_KEY);
// Script script = new Script(
// );
// byte[] bytes1 = ScriptBuilder.createOutputScript(
// address).getProgram();
// byte[] bytes2 = StringUtil
// .hexStringToByteArray(str);
// LogUtil.d("tx", Arrays.equals(bytes1, bytes2) +
// ";");
TransactionOutput transactionOutput =
new TransactionOutput(
BitherSetting.NETWORK_PARAMETERS,
transaction,
value,
StringUtil.hexStringToByteArray(str));
transaction.addOutput(transactionOutput);
}
}
}
if (!tranJsonObject.isNull(EXPLORER_IN)) {
JSONArray tranInArray = tranJsonObject.getJSONArray(EXPLORER_IN);
for (int i = 0; i < tranInArray.length(); i++) {
JSONObject tranInJson = tranInArray.getJSONObject(i);
TransactionOutPoint transactionOutPoint = null;
if (!tranInJson.isNull(EXPLORER_COINBASE)) {
long index = 0;
if (!tranInJson.isNull(EXPLORER_SEQUENCE)) {
index = tranInJson.getLong(EXPLORER_SEQUENCE);
}
transactionOutPoint =
new TransactionOutPoint(
BitherSetting.NETWORK_PARAMETERS, index, Sha256Hash.ZERO_HASH);
} else {
String prevOutHash = tranInJson.getString(PREV_TX_HASH);
long n = 0;
if (!tranInJson.isNull(PREV_OUTPUT_SN)) {
n = tranInJson.getLong(PREV_OUTPUT_SN);
}
transactionOutPoint =
new TransactionOutPoint(
BitherSetting.NETWORK_PARAMETERS, n, new Sha256Hash(prevOutHash));
}
// Log.d("transaction", transaction.toString());
if (transactionOutPoint != null) {
TransactionInput transactionInput =
new TransactionInput(
BitherSetting.NETWORK_PARAMETERS,
transaction,
Script.createInputScript(EMPTY_BYTES, EMPTY_BYTES),
transactionOutPoint);
transaction.addInput(transactionInput);
}
}
}
transaction.getConfidence().setAppearedAtChainHeight(height);
transaction.getConfidence().setConfidenceType(ConfidenceType.BUILDING);
transaction.getConfidence().setDepthInBlocks(storeBlockHeight - height + 1);
transaction.setUpdateTime(updateTime);
// Log.d("transaction", "transaction.num:" + transaction);
Field txField = Transaction.class.getDeclaredField("hash");
txField.setAccessible(true);
txField.set(transaction, new Sha256Hash(txHash));
transactions.add(transaction);
count++;
double progress =
BitherSetting.SYNC_TX_PROGRESS_BLOCK_HEIGHT
+ BitherSetting.SYNC_TX_PROGRESS_STEP1
+ BitherSetting.SYNC_TX_PROGRESS_STEP2 * (count / size);
BroadcastUtil.sendBroadcastProgressState(progress);
}
}
LogUtil.d("transaction", "transactions.num:" + transactions.size());
return transactions;
}
@Test
public void dataDrivenValidTransactions() throws Exception {
BufferedReader in =
new BufferedReader(
new InputStreamReader(
getClass().getResourceAsStream("tx_valid.json"), Charset.forName("UTF-8")));
NetworkParameters params = TestNet3Params.get();
// Poor man's (aka. really, really poor) JSON parser (because pulling in a lib for this is
// probably not overkill)
int lineNum = -1;
List<JSONObject> tx = new ArrayList<JSONObject>(3);
in.read(); // remove first [
StringBuffer buffer = new StringBuffer(1000);
while (in.ready()) {
lineNum++;
String line = in.readLine();
if (line == null || line.equals("")) continue;
buffer.append(line);
if (line.equals("]") && buffer.toString().equals("]") && !in.ready()) break;
boolean isFinished = appendToList(tx, buffer);
while (tx.size() > 0
&& tx.get(0).isList()
&& tx.get(0).list.size() == 1
&& tx.get(0).list.get(0).isString()) tx.remove(0); // ignore last ]
if (isFinished && tx.size() == 1 && tx.get(0).list.size() == 3) {
Transaction transaction = null;
try {
HashMap<TransactionOutPoint, Script> scriptPubKeys =
new HashMap<TransactionOutPoint, Script>();
for (JSONObject input : tx.get(0).list.get(0).list) {
String hash = input.list.get(0).string;
int index = input.list.get(1).integer;
String script = input.list.get(2).string;
Sha256Hash sha256Hash =
new Sha256Hash(Hex.decode(hash.getBytes(Charset.forName("UTF-8"))));
scriptPubKeys.put(
new TransactionOutPoint(params, index, sha256Hash), parseScriptString(script));
}
byte[] bytes = tx.get(0).list.get(1).string.getBytes(Charset.forName("UTF-8"));
transaction = new Transaction(params, Hex.decode(bytes));
boolean enforceP2SH = tx.get(0).list.get(2).booleanValue;
assertTrue(tx.get(0).list.get(2).isBoolean());
transaction.verify();
for (int i = 0; i < transaction.getInputs().size(); i++) {
TransactionInput input = transaction.getInputs().get(i);
if (input.getOutpoint().getIndex() == 0xffffffffL) input.getOutpoint().setIndex(-1);
assertTrue(scriptPubKeys.containsKey(input.getOutpoint()));
input
.getScriptSig()
.correctlySpends(
transaction, i, scriptPubKeys.get(input.getOutpoint()), enforceP2SH);
}
tx.clear();
} catch (Exception e) {
System.err.println("Exception processing line " + lineNum + ": " + line);
if (transaction != null) System.err.println(transaction);
throw e;
}
}
}
in.close();
}
@Override
public void onCoinsSent(
Wallet wallet, Transaction tx, BigInteger prevBalance, BigInteger newBalance) {
BigInteger amt = prevBalance.subtract(newBalance);
final long amount = amt.longValue();
WalletApplication app = (WalletApplication) getApplicationContext();
final BTCFmt btcfmt = app.getBTCFmt();
// We allocate a new notification id for each receive.
// We use it on both the receive and confirm so it
// will replace the receive note with the confirm ...
final int noteId = ++mNoteId;
mLogger.info(String.format("showing notification send %d", amount));
showEventNotification(
noteId,
R.drawable.ic_note_bc_red_lt,
mRes.getString(R.string.wallet_service_note_sent_title, btcfmt.unitStr()),
mRes.getString(
R.string.wallet_service_note_sent_msg, btcfmt.format(amount), btcfmt.unitStr()));
final TransactionConfidence txconf = tx.getConfidence();
final TransactionConfidence.Listener listener =
new TransactionConfidence.Listener() {
@Override
public void onConfidenceChanged(Transaction tx, ChangeReason reason) {
// Wait until it's not pending anymore.
if (tx.isPending()) return;
ConfidenceType ct = tx.getConfidence().getConfidenceType();
if (ct == ConfidenceType.BUILDING) {
mLogger.info(String.format("send %d confirm", amount));
// Show no longer pending.
showEventNotification(
noteId,
R.drawable.ic_note_bc_red,
mRes.getString(R.string.wallet_service_note_scnf_title, btcfmt.unitStr()),
mRes.getString(
R.string.wallet_service_note_scnf_msg,
btcfmt.format(amount),
btcfmt.unitStr()));
} else if (ct == ConfidenceType.DEAD) {
mLogger.info(String.format("send %d dead", amount));
// Notify dead.
showEventNotification(
noteId,
R.drawable.ic_note_bc_gray,
mRes.getString(R.string.wallet_service_note_sdead_title, btcfmt.unitStr()),
mRes.getString(
R.string.wallet_service_note_sdead_msg,
btcfmt.format(amount),
btcfmt.unitStr()));
} else {
mLogger.info(String.format("send %d unknown", amount));
}
// We're all done listening ...
txconf.removeEventListener(this);
}
};
txconf.addEventListener(listener);
}
private void putInternal(Block block, StatusContext ctx) {
long t1 = System.currentTimeMillis();
Sha256Hash hash = block.getHash();
ctx.setStatus("BLOCK_CHECK_EXIST");
if (file_db.getBlockMap().containsKey(hash)) {
imported_blocks.incrementAndGet();
return;
}
// Mark block as in progress
Semaphore block_wait_sem;
synchronized (in_progress) {
block_wait_sem = in_progress.get(hash);
if (block_wait_sem == null) {
block_wait_sem = new Semaphore(0);
in_progress.put(hash, block_wait_sem);
}
}
// Kick off threaded storage of transactions
int size = 0;
ctx.setStatus("BLOCK_TX_CACHE_INSERT");
synchronized (transaction_cache) {
for (Transaction tx : block.getTransactions()) {
transaction_cache.put(tx.getHash(), SerializedTransaction.scrubTransaction(params, tx));
}
}
ctx.setStatus("BLOCK_TX_ENQUE");
LinkedList<Sha256Hash> tx_list = new LinkedList<Sha256Hash>();
Collection<Map.Entry<String, Sha256Hash>> addrTxLst =
new LinkedList<Map.Entry<String, Sha256Hash>>();
Map<Sha256Hash, SerializedTransaction> txs_map =
new HashMap<Sha256Hash, SerializedTransaction>();
for (Transaction tx : block.getTransactions()) {
imported_transactions.incrementAndGet();
Collection<String> addrs = getAllAddresses(tx, true);
for (String addr : addrs) {
addrTxLst.add(
new java.util.AbstractMap.SimpleEntry<String, Sha256Hash>(addr, tx.getHash()));
}
txs_map.put(tx.getHash(), new SerializedTransaction(tx));
tx_list.add(tx.getHash());
size++;
}
ctx.setStatus("TX_SAVEALL");
file_db.getTransactionMap().putAll(txs_map);
ctx.setStatus("BLOCK_TX_MAP_ADD");
file_db.addTxsToBlockMap(tx_list, hash);
ctx.setStatus("ADDR_SAVEALL");
file_db.addAddressesToTxMap(addrTxLst);
int h = block_store.getHeight(hash);
for (Transaction tx : block.getTransactions()) {
Collection<String> addrs = getAllAddresses(tx, true);
ctx.setStatus("TX_NOTIFY");
jelly.getElectrumNotifier().notifyNewTransaction(tx, addrs, h);
ctx.setStatus("TX_DONE");
}
// Once all transactions are in, check for prev block in this store
ctx.setStatus("BLOCK_WAIT_PREV");
Sha256Hash prev_hash = block.getPrevBlockHash();
waitForBlockStored(prev_hash);
// System.out.println("Block " + hash + " " + Util.measureSerialization(new
// SerializedBlock(block)));
ctx.setStatus("BLOCK_SAVE");
file_db.getBlockMap().put(hash, new SerializedBlock(block));
block_wait_sem.release(1024);
boolean wait_for_utxo = false;
if (jelly.isUpToDate() && jelly.getUtxoTrieMgr().isUpToDate()) {
wait_for_utxo = true;
}
jelly.getUtxoTrieMgr().notifyBlock(wait_for_utxo);
if (wait_for_utxo) {
jelly.getEventLog().alarm("UTXO root hash: " + jelly.getUtxoTrieMgr().getRootHash());
}
jelly.getElectrumNotifier().notifyNewBlock(block);
long t2 = System.currentTimeMillis();
DecimalFormat df = new DecimalFormat("0.000");
double sec = (t2 - t1) / 1000.0;
if (h % block_print_every == 0) {
jelly
.getEventLog()
.alarm(
"Saved block: "
+ hash
+ " - "
+ h
+ " - "
+ size
+ " ("
+ df.format(sec)
+ " seconds)");
}
jelly
.getEventLog()
.log(
"Saved block: "
+ hash
+ " - "
+ h
+ " - "
+ size
+ " ("
+ df.format(sec)
+ " seconds)");
imported_blocks.incrementAndGet();
}
