@Test
public void oneTx() throws Exception {
// Check basic tx serialization.
Coin v1 = COIN;
Transaction t1 = createFakeTx(params, v1, myAddress);
t1.getConfidence().markBroadcastBy(new PeerAddress(InetAddress.getByName("1.2.3.4")));
t1.getConfidence().markBroadcastBy(new PeerAddress(InetAddress.getByName("5.6.7.8")));
t1.getConfidence().setSource(TransactionConfidence.Source.NETWORK);
myWallet.receivePending(t1, null);
Wallet wallet1 = roundTrip(myWallet);
assertEquals(1, wallet1.getTransactions(true).size());
assertEquals(v1, wallet1.getBalance(Wallet.BalanceType.ESTIMATED));
Transaction t1copy = wallet1.getTransaction(t1.getHash());
assertArrayEquals(t1.bitcoinSerialize(), t1copy.bitcoinSerialize());
assertEquals(2, t1copy.getConfidence().numBroadcastPeers());
assertEquals(TransactionConfidence.Source.NETWORK, t1copy.getConfidence().getSource());
Protos.Wallet walletProto = new WalletProtobufSerializer().walletToProto(myWallet);
assertEquals(Protos.Key.Type.ORIGINAL, walletProto.getKey(0).getType());
assertEquals(0, walletProto.getExtensionCount());
assertEquals(1, walletProto.getTransactionCount());
assertEquals(6, walletProto.getKeyCount());
Protos.Transaction t1p = walletProto.getTransaction(0);
assertEquals(0, t1p.getBlockHashCount());
assertArrayEquals(t1.getHash().getBytes(), t1p.getHash().toByteArray());
assertEquals(Protos.Transaction.Pool.PENDING, t1p.getPool());
assertFalse(t1p.hasLockTime());
assertFalse(t1p.getTransactionInput(0).hasSequence());
assertArrayEquals(
t1.getInputs().get(0).getOutpoint().getHash().getBytes(),
t1p.getTransactionInput(0).getTransactionOutPointHash().toByteArray());
assertEquals(0, t1p.getTransactionInput(0).getTransactionOutPointIndex());
assertEquals(t1p.getTransactionOutput(0).getValue(), v1.value);
}
@Test
public void extensionsWithError() throws Exception {
WalletExtension extension =
new WalletExtension() {
@Override
public String getWalletExtensionID() {
return "test";
}
@Override
public boolean isWalletExtensionMandatory() {
return false;
}
@Override
public byte[] serializeWalletExtension() {
return new byte[0];
}
@Override
public void deserializeWalletExtension(Wallet containingWallet, byte[] data)
throws Exception {
throw new NullPointerException(); // Something went wrong!
}
};
myWallet.addExtension(extension);
Protos.Wallet proto = new WalletProtobufSerializer().walletToProto(myWallet);
Wallet wallet =
new WalletProtobufSerializer().readWallet(params, new WalletExtension[] {extension}, proto);
assertEquals(0, wallet.getExtensions().size());
}
@Test
public void tags() throws Exception {
myWallet.setTag("foo", ByteString.copyFromUtf8("bar"));
assertEquals("bar", myWallet.getTag("foo").toStringUtf8());
myWallet = roundTrip(myWallet);
assertEquals("bar", myWallet.getTag("foo").toStringUtf8());
}
private void loadExtensions(
Wallet wallet, WalletExtension[] extensionsList, Protos.Wallet walletProto)
throws UnreadableWalletException {
final Map<String, WalletExtension> extensions = new HashMap<String, WalletExtension>();
for (WalletExtension e : extensionsList) extensions.put(e.getWalletExtensionID(), e);
// The Wallet object, if subclassed, might have added some extensions to itself already. In that
// case, don't
// expect them to be passed in, just fetch them here and don't re-add.
extensions.putAll(wallet.getExtensions());
for (Protos.Extension extProto : walletProto.getExtensionList()) {
String id = extProto.getId();
WalletExtension extension = extensions.get(id);
if (extension == null) {
if (extProto.getMandatory()) {
if (requireMandatoryExtensions)
throw new UnreadableWalletException("Unknown mandatory extension in wallet: " + id);
else log.error("Unknown extension in wallet {}, ignoring", id);
}
} else {
log.info("Loading wallet extension {}", id);
try {
extension.deserializeWalletExtension(wallet, extProto.getData().toByteArray());
wallet.addOrGetExistingExtension(extension);
} catch (Exception e) {
if (extProto.getMandatory() && requireMandatoryExtensions)
throw new UnreadableWalletException(
"Could not parse mandatory extension in wallet: " + id);
else log.error("Error whilst reading extension {}, ignoring", id, e);
}
}
}
}
private boolean handleTx(final Transaction tx) {
log.info("tx " + tx.getHashAsString() + " arrived via blueooth");
try {
if (wallet.isTransactionRelevant(tx)) {
wallet.receivePending(tx, null);
handler.post(
new Runnable() {
@Override
public void run() {
application.broadcastTransaction(tx);
}
});
} else {
log.info("tx " + tx.getHashAsString() + " irrelevant");
}
return true;
} catch (final VerificationException x) {
log.info("cannot verify tx " + tx.getHashAsString() + " received via bluetooth", x);
}
return false;
}
@Test
public void testLastBlockSeenHash() throws Exception {
// Test the lastBlockSeenHash field works.
// LastBlockSeenHash should be empty if never set.
Wallet wallet = new Wallet(params);
Protos.Wallet walletProto = new WalletProtobufSerializer().walletToProto(wallet);
ByteString lastSeenBlockHash = walletProto.getLastSeenBlockHash();
assertTrue(lastSeenBlockHash.isEmpty());
// Create a block.
Block block = params.getDefaultSerializer().makeBlock(BlockTest.blockBytes);
Sha256Hash blockHash = block.getHash();
wallet.setLastBlockSeenHash(blockHash);
wallet.setLastBlockSeenHeight(1);
// Roundtrip the wallet and check it has stored the blockHash.
Wallet wallet1 = roundTrip(wallet);
assertEquals(blockHash, wallet1.getLastBlockSeenHash());
assertEquals(1, wallet1.getLastBlockSeenHeight());
// Test the Satoshi genesis block (hash of all zeroes) is roundtripped ok.
Block genesisBlock = MainNetParams.get().getGenesisBlock();
wallet.setLastBlockSeenHash(genesisBlock.getHash());
Wallet wallet2 = roundTrip(wallet);
assertEquals(genesisBlock.getHash(), wallet2.getLastBlockSeenHash());
}
@Test
public void raiseFeeTx() throws Exception {
// Check basic tx serialization.
Coin v1 = COIN;
Transaction t1 = createFakeTx(params, v1, myAddress);
t1.setPurpose(Purpose.RAISE_FEE);
myWallet.receivePending(t1, null);
Wallet wallet1 = roundTrip(myWallet);
Transaction t1copy = wallet1.getTransaction(t1.getHash());
assertEquals(Purpose.RAISE_FEE, t1copy.getPurpose());
}
@Test
public void testKeys() throws Exception {
for (int i = 0; i < 20; i++) {
myKey = new ECKey();
myAddress = myKey.toAddress(params);
myWallet = new Wallet(params);
myWallet.importKey(myKey);
Wallet wallet1 = roundTrip(myWallet);
assertArrayEquals(
myKey.getPubKey(), wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPubKey());
assertArrayEquals(
myKey.getPrivKeyBytes(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPrivKeyBytes());
}
}
@Before
public void setUp() throws Exception {
BriefLogFormatter.initVerbose();
Context ctx = new Context(params);
myWatchedKey = new ECKey();
myWallet = new Wallet(params);
myKey = new ECKey();
myKey.setCreationTimeSeconds(123456789L);
myWallet.importKey(myKey);
myAddress = myKey.toAddress(params);
myWallet = new Wallet(params);
myWallet.importKey(myKey);
mScriptCreationTime = new Date().getTime() / 1000 - 1234;
myWallet.addWatchedAddress(myWatchedKey.toAddress(params), mScriptCreationTime);
myWallet.setDescription(WALLET_DESCRIPTION);
}
@Test
public void extensions() throws Exception {
myWallet.addExtension(new FooWalletExtension("com.whatever.required", true));
Protos.Wallet proto = new WalletProtobufSerializer().walletToProto(myWallet);
// Initial extension is mandatory: try to read it back into a wallet that doesn't know about it.
try {
new WalletProtobufSerializer().readWallet(params, null, proto);
fail();
} catch (UnreadableWalletException e) {
assertTrue(e.getMessage().contains("mandatory"));
}
Wallet wallet =
new WalletProtobufSerializer()
.readWallet(
params,
new WalletExtension[] {new FooWalletExtension("com.whatever.required", true)},
proto);
assertTrue(wallet.getExtensions().containsKey("com.whatever.required"));
// Non-mandatory extensions are ignored if the wallet doesn't know how to read them.
Wallet wallet2 = new Wallet(params);
wallet2.addExtension(new FooWalletExtension("com.whatever.optional", false));
Protos.Wallet proto2 = new WalletProtobufSerializer().walletToProto(wallet2);
Wallet wallet5 = new WalletProtobufSerializer().readWallet(params, null, proto2);
assertEquals(0, wallet5.getExtensions().size());
}
private static void populateExtensions(Wallet wallet, Protos.Wallet.Builder walletBuilder) {
for (WalletExtension extension : wallet.getExtensions().values()) {
Protos.Extension.Builder proto = Protos.Extension.newBuilder();
proto.setId(extension.getWalletExtensionID());
proto.setMandatory(extension.isWalletExtensionMandatory());
proto.setData(ByteString.copyFrom(extension.serializeWalletExtension()));
walletBuilder.addExtension(proto);
}
}
// Create a payment transaction with valueToMe going back to us
private synchronized Wallet.SendRequest makeUnsignedChannelContract(Coin valueToMe) {
Transaction tx = new Transaction(wallet.getParams());
if (!totalValue.subtract(valueToMe).equals(Coin.ZERO)) {
clientOutput.setValue(totalValue.subtract(valueToMe));
tx.addOutput(clientOutput);
}
tx.addInput(multisigContract.getOutput(0));
return Wallet.SendRequest.forTx(tx);
}
private synchronized void updateChannelInWallet() {
if (storedServerChannel != null) {
storedServerChannel.updateValueToMe(bestValueToMe, bestValueSignature);
StoredPaymentChannelServerStates channels =
(StoredPaymentChannelServerStates)
wallet.getExtensions().get(StoredPaymentChannelServerStates.EXTENSION_ID);
channels.updatedChannel(storedServerChannel);
}
}
@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 =
params
.getDefaultSerializer()
.makeTransaction(storedState.getRefundTransaction().toByteArray());
refundTransaction.getConfidence().setSource(TransactionConfidence.Source.SELF);
ECKey myKey =
(storedState.getMyKey().isEmpty())
? containingWallet.findKeyFromPubKey(storedState.getMyPublicKey().toByteArray())
: ECKey.fromPrivate(storedState.getMyKey().toByteArray());
StoredClientChannel channel =
new StoredClientChannel(
Sha256Hash.wrap(storedState.getId().toByteArray()),
params
.getDefaultSerializer()
.makeTransaction(storedState.getContractTransaction().toByteArray()),
refundTransaction,
myKey,
Coin.valueOf(storedState.getValueToMe()),
Coin.valueOf(storedState.getRefundFees()),
false);
if (storedState.hasCloseTransactionHash()) {
Sha256Hash closeTxHash =
Sha256Hash.wrap(storedState.getCloseTransactionHash().toByteArray());
channel.close = containingWallet.getTransaction(closeTxHash);
}
putChannel(channel, false);
}
} finally {
lock.unlock();
}
}
@Test
public void empty() throws Exception {
// Check the base case of a wallet with one key and no transactions.
Wallet wallet1 = roundTrip(myWallet);
assertEquals(0, wallet1.getTransactions(true).size());
assertEquals(Coin.ZERO, wallet1.getBalance());
assertArrayEquals(
myKey.getPubKey(), wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPubKey());
assertArrayEquals(
myKey.getPrivKeyBytes(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPrivKeyBytes());
assertEquals(
myKey.getCreationTimeSeconds(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getCreationTimeSeconds());
assertEquals(mScriptCreationTime, wallet1.getWatchedScripts().get(0).getCreationTimeSeconds());
assertEquals(1, wallet1.getWatchedScripts().size());
assertEquals(
ScriptBuilder.createOutputScript(myWatchedKey.toAddress(params)),
wallet1.getWatchedScripts().get(0));
assertEquals(WALLET_DESCRIPTION, wallet1.getDescription());
}
@Test
public void coinbaseTxns() throws Exception {
// Covers issue 420 where the outpoint index of a coinbase tx input was being mis-serialized.
Block b =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS,
myKey.getPubKey(),
FIFTY_COINS,
Block.BLOCK_HEIGHT_GENESIS);
Transaction coinbase = b.getTransactions().get(0);
assertTrue(coinbase.isCoinBase());
BlockChain chain = new BlockChain(params, myWallet, new MemoryBlockStore(params));
assertTrue(chain.add(b));
// Wallet now has a coinbase tx in it.
assertEquals(1, myWallet.getTransactions(true).size());
assertTrue(myWallet.getTransaction(coinbase.getHash()).isCoinBase());
Wallet wallet2 = roundTrip(myWallet);
assertEquals(1, wallet2.getTransactions(true).size());
assertTrue(wallet2.getTransaction(coinbase.getHash()).isCoinBase());
}
private void handlePasteClipboard() {
final Address address = getAddressFromPrimaryClip();
if (address == null) {
final DialogBuilder dialog = new DialogBuilder(activity);
dialog.setTitle(R.string.address_book_options_paste_from_clipboard_title);
dialog.setMessage(R.string.address_book_options_paste_from_clipboard_invalid);
dialog.singleDismissButton(null);
dialog.show();
} else if (!wallet.isPubKeyHashMine(address.getHash160())) {
EditAddressBookEntryFragment.edit(getFragmentManager(), address);
} else {
final DialogBuilder dialog = new DialogBuilder(activity);
dialog.setTitle(R.string.address_book_options_paste_from_clipboard_title);
dialog.setMessage(R.string.address_book_options_paste_from_clipboard_own_address);
dialog.singleDismissButton(null);
dialog.show();
}
}
@Test
public void testRoundTripNormalWallet() throws Exception {
Wallet wallet1 = roundTrip(myWallet);
assertEquals(0, wallet1.getTransactions(true).size());
assertEquals(Coin.ZERO, wallet1.getBalance());
assertArrayEquals(
myKey.getPubKey(), wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPubKey());
assertArrayEquals(
myKey.getPrivKeyBytes(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPrivKeyBytes());
assertEquals(
myKey.getCreationTimeSeconds(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getCreationTimeSeconds());
}
/**
* Stores this channel's state in the wallet as a part of a {@link
* StoredPaymentChannelServerStates} wallet extension and keeps it up-to-date each time payment is
* incremented. This will be automatically removed when a call to {@link
* PaymentChannelServerState#close()} completes successfully. A channel may only be stored after
* it has fully opened (ie state == State.READY).
*
* @param connectedHandler Optional {@link PaymentChannelServer} object that manages this object.
* This will set the appropriate pointer in the newly created {@link StoredServerChannel}
* before it is committed to wallet. If set, closing the state object will propagate the close
* to the handler which can then do a TCP disconnect.
*/
public synchronized void storeChannelInWallet(@Nullable PaymentChannelServer connectedHandler) {
checkState(state == State.READY);
if (storedServerChannel != null) return;
log.info("Storing state with contract hash {}.", multisigContract.getHash());
StoredPaymentChannelServerStates channels =
(StoredPaymentChannelServerStates)
wallet.addOrGetExistingExtension(
new StoredPaymentChannelServerStates(wallet, broadcaster));
storedServerChannel =
new StoredServerChannel(
this,
multisigContract,
clientOutput,
refundTransactionUnlockTimeSecs,
serverKey,
bestValueToMe,
bestValueSignature);
if (connectedHandler != null)
checkState(
storedServerChannel.setConnectedHandler(connectedHandler, false) == connectedHandler);
channels.putChannel(storedServerChannel);
}
@Test
public void doubleSpend() throws Exception {
// Check that we can serialize double spends correctly, as this is a slightly tricky case.
FakeTxBuilder.DoubleSpends doubleSpends =
FakeTxBuilder.createFakeDoubleSpendTxns(params, myAddress);
// t1 spends to our wallet.
myWallet.receivePending(doubleSpends.t1, null);
// t2 rolls back t1 and spends somewhere else.
myWallet.receiveFromBlock(doubleSpends.t2, null, BlockChain.NewBlockType.BEST_CHAIN, 0);
Wallet wallet1 = roundTrip(myWallet);
assertEquals(1, wallet1.getTransactions(true).size());
Transaction t1 = wallet1.getTransaction(doubleSpends.t1.getHash());
assertEquals(ConfidenceType.DEAD, t1.getConfidence().getConfidenceType());
assertEquals(Coin.ZERO, wallet1.getBalance());
// TODO: Wallet should store overriding transactions even if they are not wallet-relevant.
// assertEquals(doubleSpends.t2, t1.getConfidence().getOverridingTransaction());
}
@Test
public void testRoundTripMarriedWallet() throws Exception {
// create 2-of-2 married wallet
myWallet = new Wallet(params);
final DeterministicKeyChain partnerChain = new DeterministicKeyChain(new SecureRandom());
DeterministicKey partnerKey =
DeterministicKey.deserializeB58(
null, partnerChain.getWatchingKey().serializePubB58(params), params);
MarriedKeyChain chain =
MarriedKeyChain.builder()
.random(new SecureRandom())
.followingKeys(partnerKey)
.threshold(2)
.build();
myWallet.addAndActivateHDChain(chain);
myAddress = myWallet.currentAddress(KeyChain.KeyPurpose.RECEIVE_FUNDS);
Wallet wallet1 = roundTrip(myWallet);
assertEquals(0, wallet1.getTransactions(true).size());
assertEquals(Coin.ZERO, wallet1.getBalance());
assertEquals(2, wallet1.getActiveKeyChain().getSigsRequiredToSpend());
assertEquals(myAddress, wallet1.currentAddress(KeyChain.KeyPurpose.RECEIVE_FUNDS));
}
/**
* Notifies the set of stored states that a channel has been updated. Use to notify the wallet of
* an update to this wallet extension.
*/
void updatedChannel(final StoredClientChannel channel) {
log.info("Stored client channel {} was updated", channel.hashCode());
containingWallet.addOrUpdateExtension(this);
}
/** Returns this extension from the given wallet, or null if no such extension was added. */
@Nullable
public static StoredPaymentChannelClientStates getFromWallet(Wallet wallet) {
return (StoredPaymentChannelClientStates) wallet.getExtensions().get(EXTENSION_ID);
}
/**
* Closes this channel and broadcasts the highest value payment transaction on the network.
*
* <p>This will set the state to {@link State#CLOSED} if the transaction is successfully broadcast
* on the network. If we fail to broadcast for some reason, the state is set to {@link
* State#ERROR}.
*
* <p>If the current state is before {@link State#READY} (ie we have not finished initializing the
* channel), we simply set the state to {@link State#CLOSED} and let the client handle getting its
* refund transaction confirmed.
*
* @return a future which completes when the provided multisig contract successfully broadcasts,
* or throws if the broadcast fails for some reason. Note that if the network simply rejects
* the transaction, this future will never complete, a timeout should be used.
* @throws InsufficientMoneyException If the payment tx would have cost more in fees to spend than
* it is worth.
*/
public synchronized ListenableFuture<Transaction> close() throws InsufficientMoneyException {
if (storedServerChannel != null) {
StoredServerChannel temp = storedServerChannel;
storedServerChannel = null;
StoredPaymentChannelServerStates channels =
(StoredPaymentChannelServerStates)
wallet.getExtensions().get(StoredPaymentChannelServerStates.EXTENSION_ID);
channels.closeChannel(
temp); // May call this method again for us (if it wasn't the original caller)
if (state.compareTo(State.CLOSING) >= 0) return closedFuture;
}
if (state.ordinal() < State.READY.ordinal()) {
log.error("Attempt to settle channel in state " + state);
state = State.CLOSED;
closedFuture.set(null);
return closedFuture;
}
if (state != State.READY) {
// TODO: What is this codepath for?
log.warn("Failed attempt to settle a channel in state " + state);
return closedFuture;
}
Transaction tx = null;
try {
Wallet.SendRequest req = makeUnsignedChannelContract(bestValueToMe);
tx = req.tx;
// Provide a throwaway signature so that completeTx won't complain out about unsigned inputs
// it doesn't
// know how to sign. Note that this signature does actually have to be valid, so we can't use
// a dummy
// signature to save time, because otherwise completeTx will try to re-sign it to make it
// valid and then
// die. We could probably add features to the SendRequest API to make this a bit more
// efficient.
signMultisigInput(tx, Transaction.SigHash.NONE, true);
// Let wallet handle adding additional inputs/fee as necessary.
req.shuffleOutputs = false;
req.missingSigsMode = Wallet.MissingSigsMode.USE_DUMMY_SIG;
wallet.completeTx(req); // TODO: Fix things so shuffling is usable.
feePaidForPayment = req.tx.getFee();
log.info("Calculated fee is {}", feePaidForPayment);
if (feePaidForPayment.compareTo(bestValueToMe) > 0) {
final String msg =
String.format(
Locale.US,
"Had to pay more in fees (%s) than the channel was worth (%s)",
feePaidForPayment,
bestValueToMe);
throw new InsufficientMoneyException(feePaidForPayment.subtract(bestValueToMe), msg);
}
// Now really sign the multisig input.
signMultisigInput(tx, Transaction.SigHash.ALL, false);
// Some checks that shouldn't be necessary but it can't hurt to check.
tx.verify(); // Sanity check syntax.
for (TransactionInput input : tx.getInputs())
input.verify(); // Run scripts and ensure it is valid.
} catch (InsufficientMoneyException e) {
throw e; // Don't fall through.
} catch (Exception e) {
log.error(
"Could not verify self-built tx\nMULTISIG {}\nCLOSE {}",
multisigContract,
tx != null ? tx : "");
throw new RuntimeException(e); // Should never happen.
}
state = State.CLOSING;
log.info("Closing channel, broadcasting tx {}", tx);
// The act of broadcasting the transaction will add it to the wallet.
ListenableFuture<Transaction> future = broadcaster.broadcastTransaction(tx).future();
Futures.addCallback(
future,
new FutureCallback<Transaction>() {
@Override
public void onSuccess(Transaction transaction) {
log.info("TX {} propagated, channel successfully closed.", transaction.getHash());
state = State.CLOSED;
closedFuture.set(transaction);
}
@Override
public void onFailure(Throwable throwable) {
log.error("Failed to settle channel, could not broadcast", throwable);
state = State.ERROR;
closedFuture.setException(throwable);
}
});
return closedFuture;
}
/**
* Called when the client provides us with a new signature and wishes to increment total payment
* by size. Verifies the provided signature and only updates values if everything checks out. If
* the new refundSize is not the lowest we have seen, it is simply ignored.
*
* @param refundSize How many satoshis of the original contract are refunded to the client (the
* rest are ours)
* @param signatureBytes The new signature spending the multi-sig contract to a new payment
* transaction
* @throws VerificationException If the signature does not verify or size is out of range (incl
* being rejected by the network as dust).
* @return true if there is more value left on the channel, false if it is now fully used up.
*/
public synchronized boolean incrementPayment(Coin refundSize, byte[] signatureBytes)
throws VerificationException, ValueOutOfRangeException, InsufficientMoneyException {
checkState(state == State.READY);
checkNotNull(refundSize);
checkNotNull(signatureBytes);
TransactionSignature signature = TransactionSignature.decodeFromBitcoin(signatureBytes, true);
// We allow snapping to zero for the payment amount because it's treated specially later, but
// not less than
// the dust level because that would prevent the transaction from being relayed/mined.
final boolean fullyUsedUp = refundSize.equals(Coin.ZERO);
if (refundSize.compareTo(clientOutput.getMinNonDustValue()) < 0 && !fullyUsedUp)
throw new ValueOutOfRangeException(
"Attempt to refund negative value or value too small to be accepted by the network");
Coin newValueToMe = totalValue.subtract(refundSize);
if (newValueToMe.signum() < 0)
throw new ValueOutOfRangeException("Attempt to refund more than the contract allows.");
if (newValueToMe.compareTo(bestValueToMe) < 0)
throw new ValueOutOfRangeException("Attempt to roll back payment on the channel.");
// Get the wallet's copy of the multisigContract (ie with confidence information), if this is
// null, the wallet
// was not connected to the peergroup when the contract was broadcast (which may cause issues
// down the road, and
// disables our double-spend check next)
Transaction walletContract = wallet.getTransaction(multisigContract.getHash());
checkNotNull(
walletContract,
"Wallet did not contain multisig contract {} after state was marked READY",
multisigContract.getHash());
// Note that we check for DEAD state here, but this test is essentially useless in production
// because we will
// miss most double-spends due to bloom filtering right now anyway. This will eventually fixed
// by network-wide
// double-spend notifications, so we just wait instead of attempting to add all dependant
// outpoints to our bloom
// filters (and probably missing lots of edge-cases).
if (walletContract.getConfidence().getConfidenceType()
== TransactionConfidence.ConfidenceType.DEAD) {
close();
throw new VerificationException("Multisig contract was double-spent");
}
Transaction.SigHash mode;
// If the client doesn't want anything back, they shouldn't sign any outputs at all.
if (fullyUsedUp) mode = Transaction.SigHash.NONE;
else mode = Transaction.SigHash.SINGLE;
if (signature.sigHashMode() != mode || !signature.anyoneCanPay())
throw new VerificationException(
"New payment signature was not signed with the right SIGHASH flags.");
Wallet.SendRequest req = makeUnsignedChannelContract(newValueToMe);
// Now check the signature is correct.
// Note that the client must sign with SIGHASH_{SINGLE/NONE} | SIGHASH_ANYONECANPAY to allow us
// to add additional
// inputs (in case we need to add significant fee, or something...) and any outputs we want to
// pay to.
Sha256Hash sighash = req.tx.hashForSignature(0, multisigScript, mode, true);
if (!clientKey.verify(sighash, signature))
throw new VerificationException("Signature does not verify on tx\n" + req.tx);
bestValueToMe = newValueToMe;
bestValueSignature = signatureBytes;
updateChannelInWallet();
return !fullyUsedUp;
}
@Test
public void testAppearedAtChainHeightDepthAndWorkDone() throws Exception {
// Test the TransactionConfidence appearedAtChainHeight, depth and workDone field are stored.
BlockChain chain = new BlockChain(params, myWallet, new MemoryBlockStore(params));
final ArrayList<Transaction> txns = new ArrayList<Transaction>(2);
myWallet.addEventListener(
new AbstractWalletEventListener() {
@Override
public void onCoinsReceived(
Wallet wallet, Transaction tx, Coin prevBalance, Coin newBalance) {
txns.add(tx);
}
});
// Start by building two blocks on top of the genesis block.
Block b1 = params.getGenesisBlock().createNextBlock(myAddress);
BigInteger work1 = b1.getWork();
assertTrue(work1.signum() > 0);
Block b2 = b1.createNextBlock(myAddress);
BigInteger work2 = b2.getWork();
assertTrue(work2.signum() > 0);
assertTrue(chain.add(b1));
assertTrue(chain.add(b2));
// We now have the following chain:
// genesis -> b1 -> b2
// Check the transaction confidence levels are correct before wallet roundtrip.
Threading.waitForUserCode();
assertEquals(2, txns.size());
TransactionConfidence confidence0 = txns.get(0).getConfidence();
TransactionConfidence confidence1 = txns.get(1).getConfidence();
assertEquals(1, confidence0.getAppearedAtChainHeight());
assertEquals(2, confidence1.getAppearedAtChainHeight());
assertEquals(2, confidence0.getDepthInBlocks());
assertEquals(1, confidence1.getDepthInBlocks());
// Roundtrip the wallet and check it has stored the depth and workDone.
Wallet rebornWallet = roundTrip(myWallet);
Set<Transaction> rebornTxns = rebornWallet.getTransactions(false);
assertEquals(2, rebornTxns.size());
// The transactions are not guaranteed to be in the same order so sort them to be in chain
// height order if required.
Iterator<Transaction> it = rebornTxns.iterator();
Transaction txA = it.next();
Transaction txB = it.next();
Transaction rebornTx0, rebornTx1;
if (txA.getConfidence().getAppearedAtChainHeight() == 1) {
rebornTx0 = txA;
rebornTx1 = txB;
} else {
rebornTx0 = txB;
rebornTx1 = txA;
}
TransactionConfidence rebornConfidence0 = rebornTx0.getConfidence();
TransactionConfidence rebornConfidence1 = rebornTx1.getConfidence();
assertEquals(1, rebornConfidence0.getAppearedAtChainHeight());
assertEquals(2, rebornConfidence1.getAppearedAtChainHeight());
assertEquals(2, rebornConfidence0.getDepthInBlocks());
assertEquals(1, rebornConfidence1.getDepthInBlocks());
}
/**
* function that updates debit/credit/balance/price in fiat and Transaction History table
*
* @param services
*/
private void updateWalletsSummary(List<WalletService> services) {
Coin totalDebit = Coin.ZERO;
Coin totalCredit = Coin.ZERO;
Coin totalBalance = Coin.ZERO;
double priceInFiat = 0.00d;
String confidence = "";
// update debit/credit/balance and price in fiat
List<TransactionWrapper> transactions = new ArrayList<>();
for (WalletService service : services) {
try {
Wallet wallet = service.getWallet();
totalBalance = totalBalance.add(wallet.getBalance());
for (Transaction trx : wallet.getTransactionsByTime()) {
if (trx.getConfidence().equals(TransactionConfidence.ConfidenceType.DEAD)) continue;
Coin amount = trx.getValue(wallet);
if (amount.isPositive()) {
totalCredit = totalCredit.add(amount);
} else {
totalDebit = totalDebit.add(amount);
}
transactions.add(new TransactionWrapper(trx, wallet, amount));
}
} catch (Exception e) {
logger.error("Unable to update wallet details");
}
}
pnlDashboardStats.setTotalBalance(MonetaryFormat.BTC.noCode().format(totalBalance).toString());
// pnlDashboardStats.setTotalDebit(MonetaryFormat.BTC.noCode().format(totalDebit).toString());
// pnlDashboardStats.setTotalCredit(MonetaryFormat.BTC.noCode().format(totalCredit).toString());
priceInFiat = Double.valueOf(MonetaryFormat.BTC.noCode().format(totalBalance).toString());
priceInFiat *= BitcoinCurrencyRateApi.get().getCurrentRateValue();
pnlDashboardStats.setPriceInFiat(
String.format("%.2f", priceInFiat), "", ConfigManager.config().getSelectedCurrency());
pnlDashboardStats.setExchangeRate(
ConfigManager.config().getSelectedCurrency(),
String.format("%.2f", BitcoinCurrencyRateApi.get().getCurrentRateValue()));
Collections.sort(
transactions,
new Comparator<TransactionWrapper>() {
@Override
public int compare(TransactionWrapper o1, TransactionWrapper o2) {
return o2.getTransaction()
.getUpdateTime()
.compareTo(o1.getTransaction().getUpdateTime());
}
});
// update Transaction History table
DefaultTableModel model = (DefaultTableModel) tblTransactions.getModel();
model.setRowCount(0);
for (TransactionWrapper wrapper : transactions) {
Transaction transaction = wrapper.getTransaction();
if (transaction.getConfidence().getDepthInBlocks() > 6)
confidence = "<html>6<sup>+</sup></html>";
else confidence = transaction.getConfidence().getDepthInBlocks() + "";
Coin amount = wrapper.getAmount();
Coin fee = transaction.getFee();
String amountString = MonetaryFormat.BTC.noCode().format(amount).toString();
String feeString = fee != null ? MonetaryFormat.BTC.noCode().format(fee).toString() : "0.00";
Address from = transaction.getInput(0).getFromAddress();
Address to =
transaction
.getOutput(0)
.getAddressFromP2PKHScript(wrapper.getWallet().getNetworkParameters());
boolean credit = amount.isPositive();
model.addRow(
new Object[] {
Utils.formatTransactionDate(transaction.getUpdateTime()),
from,
to,
credit ? "Credit" : "Debit",
amountString,
feeString,
"",
confidence
});
}
Coin balanceAfter = Coin.ZERO;
for (int index = transactions.size() - 1; index >= 0; index--) {
balanceAfter = balanceAfter.add(Coin.parseCoin((String) model.getValueAt(index, 4)));
model.setValueAt(MonetaryFormat.BTC.noCode().format(balanceAfter).toString(), index, 6);
}
}
/**
* Loads wallet data from the given protocol buffer and inserts it into the given Wallet object.
* This is primarily useful when you wish to pre-register extension objects. Note that if loading
* fails the provided Wallet object may be in an indeterminate state and should be thrown away.
*
* <p>A wallet can be unreadable for various reasons, such as inability to open the file, corrupt
* data, internally inconsistent data, a wallet extension marked as mandatory that cannot be
* handled and so on. You should always handle {@link UnreadableWalletException} and communicate
* failure to the user in an appropriate manner.
*
* @throws UnreadableWalletException thrown in various error conditions (see description).
*/
public Wallet readWallet(
NetworkParameters params, @Nullable WalletExtension[] extensions, Protos.Wallet walletProto)
throws UnreadableWalletException {
if (walletProto.getVersion() > 1) throw new UnreadableWalletException.FutureVersion();
if (!walletProto.getNetworkIdentifier().equals(params.getId()))
throw new UnreadableWalletException.WrongNetwork();
int sigsRequiredToSpend = walletProto.getSigsRequiredToSpend();
// Read the scrypt parameters that specify how encryption and decryption is performed.
KeyChainGroup chain;
if (walletProto.hasEncryptionParameters()) {
Protos.ScryptParameters encryptionParameters = walletProto.getEncryptionParameters();
final KeyCrypterScrypt keyCrypter = new KeyCrypterScrypt(encryptionParameters);
chain =
KeyChainGroup.fromProtobufEncrypted(
params, walletProto.getKeyList(), sigsRequiredToSpend, keyCrypter);
} else {
chain =
KeyChainGroup.fromProtobufUnencrypted(
params, walletProto.getKeyList(), sigsRequiredToSpend);
}
Wallet wallet = factory.create(params, chain);
List<Script> scripts = Lists.newArrayList();
for (Protos.Script protoScript : walletProto.getWatchedScriptList()) {
try {
Script script =
new Script(
protoScript.getProgram().toByteArray(), protoScript.getCreationTimestamp() / 1000);
scripts.add(script);
} catch (ScriptException e) {
throw new UnreadableWalletException("Unparseable script in wallet");
}
}
wallet.addWatchedScripts(scripts);
if (walletProto.hasDescription()) {
wallet.setDescription(walletProto.getDescription());
}
// Read all transactions and insert into the txMap.
for (Protos.Transaction txProto : walletProto.getTransactionList()) {
readTransaction(txProto, wallet.getParams());
}
// Update transaction outputs to point to inputs that spend them
for (Protos.Transaction txProto : walletProto.getTransactionList()) {
WalletTransaction wtx = connectTransactionOutputs(txProto);
wallet.addWalletTransaction(wtx);
}
// Update the lastBlockSeenHash.
if (!walletProto.hasLastSeenBlockHash()) {
wallet.setLastBlockSeenHash(null);
} else {
wallet.setLastBlockSeenHash(byteStringToHash(walletProto.getLastSeenBlockHash()));
}
if (!walletProto.hasLastSeenBlockHeight()) {
wallet.setLastBlockSeenHeight(-1);
} else {
wallet.setLastBlockSeenHeight(walletProto.getLastSeenBlockHeight());
}
// Will default to zero if not present.
wallet.setLastBlockSeenTimeSecs(walletProto.getLastSeenBlockTimeSecs());
if (walletProto.hasKeyRotationTime()) {
wallet.setKeyRotationTime(new Date(walletProto.getKeyRotationTime() * 1000));
}
loadExtensions(wallet, extensions != null ? extensions : new WalletExtension[0], walletProto);
for (Protos.Tag tag : walletProto.getTagsList()) {
wallet.setTag(tag.getTag(), tag.getData());
}
for (Protos.TransactionSigner signerProto : walletProto.getTransactionSignersList()) {
try {
Class signerClass = Class.forName(signerProto.getClassName());
TransactionSigner signer = (TransactionSigner) signerClass.newInstance();
signer.deserialize(signerProto.getData().toByteArray());
wallet.addTransactionSigner(signer);
} catch (Exception e) {
throw new UnreadableWalletException(
"Unable to deserialize TransactionSigner instance: " + signerProto.getClassName(), e);
}
}
if (walletProto.hasVersion()) {
wallet.setVersion(walletProto.getVersion());
}
// Make sure the object can be re-used to read another wallet without corruption.
txMap.clear();
return wallet;
}
public static void main(String[] args) throws Exception {
NetworkParameters params = TestNet3Params.get();
// Bitcoinj supports hierarchical deterministic wallets (or "HD Wallets"):
// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
// HD wallets allow you to restore your wallet simply from a root seed. This seed can be
// represented using a short mnemonic sentence as described in BIP 39:
// https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki
// Here we restore our wallet from a seed with no passphrase. Also have a look at the
// BackupToMnemonicSeed.java example that shows how to backup a wallet by creating a mnemonic
// sentence.
String seedCode =
"yard impulse luxury drive today throw farm pepper survey wreck glass federal";
String passphrase = "";
Long creationtime = 1409478661L;
DeterministicSeed seed = new DeterministicSeed(seedCode, null, passphrase, creationtime);
// The wallet class provides a easy fromSeed() function that loads a new wallet from a given
// seed.
Wallet wallet = Wallet.fromSeed(params, seed);
// Because we are importing an existing wallet which might already have transactions we must
// re-download the blockchain to make the wallet picks up these transactions
// You can find some information about this in the guides:
// https://bitcoinj.github.io/working-with-the-wallet#setup
// To do this we clear the transactions of the wallet and delete a possible existing blockchain
// file before we download the blockchain again further down.
System.out.println(wallet.toString());
wallet.clearTransactions(0);
File chainFile = new File("restore-from-seed.spvchain");
if (chainFile.exists()) {
chainFile.delete();
}
// Setting up the BlochChain, the BlocksStore and connecting to the network.
SPVBlockStore chainStore = new SPVBlockStore(params, chainFile);
BlockChain chain = new BlockChain(params, chainStore);
PeerGroup peers = new PeerGroup(params, chain);
peers.addPeerDiscovery(new DnsDiscovery(params));
// Now we need to hook the wallet up to the blockchain and the peers. This registers event
// listeners that notify our wallet about new transactions.
chain.addWallet(wallet);
peers.addWallet(wallet);
DownloadProgressTracker bListener =
new DownloadProgressTracker() {
@Override
public void doneDownload() {
System.out.println("blockchain downloaded");
}
};
// Now we re-download the blockchain. This replays the chain into the wallet. Once this is
// completed our wallet should know of all its transactions and print the correct balance.
peers.start();
peers.startBlockChainDownload(bListener);
bListener.await();
// Print a debug message with the details about the wallet. The correct balance should now be
// displayed.
System.out.println(wallet.toString());
// shutting down again
peers.stop();
}
/**
* Converts the given wallet to the object representation of the protocol buffers. This can be
* modified, or additional data fields set, before serialization takes place.
*/
public Protos.Wallet walletToProto(Wallet wallet) {
Protos.Wallet.Builder walletBuilder = Protos.Wallet.newBuilder();
walletBuilder.setNetworkIdentifier(wallet.getNetworkParameters().getId());
if (wallet.getDescription() != null) {
walletBuilder.setDescription(wallet.getDescription());
}
for (WalletTransaction wtx : wallet.getWalletTransactions()) {
Protos.Transaction txProto = makeTxProto(wtx);
walletBuilder.addTransaction(txProto);
}
walletBuilder.addAllKey(wallet.serializeKeychainToProtobuf());
for (Script script : wallet.getWatchedScripts()) {
Protos.Script protoScript =
Protos.Script.newBuilder()
.setProgram(ByteString.copyFrom(script.getProgram()))
.setCreationTimestamp(script.getCreationTimeSeconds() * 1000)
.build();
walletBuilder.addWatchedScript(protoScript);
}
// Populate the lastSeenBlockHash field.
Sha256Hash lastSeenBlockHash = wallet.getLastBlockSeenHash();
if (lastSeenBlockHash != null) {
walletBuilder.setLastSeenBlockHash(hashToByteString(lastSeenBlockHash));
walletBuilder.setLastSeenBlockHeight(wallet.getLastBlockSeenHeight());
}
if (wallet.getLastBlockSeenTimeSecs() > 0)
walletBuilder.setLastSeenBlockTimeSecs(wallet.getLastBlockSeenTimeSecs());
// Populate the scrypt parameters.
KeyCrypter keyCrypter = wallet.getKeyCrypter();
if (keyCrypter == null) {
// The wallet is unencrypted.
walletBuilder.setEncryptionType(EncryptionType.UNENCRYPTED);
} else {
// The wallet is encrypted.
walletBuilder.setEncryptionType(keyCrypter.getUnderstoodEncryptionType());
if (keyCrypter instanceof KeyCrypterScrypt) {
KeyCrypterScrypt keyCrypterScrypt = (KeyCrypterScrypt) keyCrypter;
walletBuilder.setEncryptionParameters(keyCrypterScrypt.getScryptParameters());
} else {
// Some other form of encryption has been specified that we do not know how to persist.
throw new RuntimeException(
"The wallet has encryption of type '"
+ keyCrypter.getUnderstoodEncryptionType()
+ "' but this WalletProtobufSerializer does not know how to persist this.");
}
}
if (wallet.getKeyRotationTime() != null) {
long timeSecs = wallet.getKeyRotationTime().getTime() / 1000;
walletBuilder.setKeyRotationTime(timeSecs);
}
populateExtensions(wallet, walletBuilder);
for (Map.Entry<String, ByteString> entry : wallet.getTags().entrySet()) {
Protos.Tag.Builder tag =
Protos.Tag.newBuilder().setTag(entry.getKey()).setData(entry.getValue());
walletBuilder.addTags(tag);
}
for (TransactionSigner signer : wallet.getTransactionSigners()) {
// do not serialize LocalTransactionSigner as it's being added implicitly
if (signer instanceof LocalTransactionSigner) continue;
Protos.TransactionSigner.Builder protoSigner = Protos.TransactionSigner.newBuilder();
protoSigner.setClassName(signer.getClass().getName());
protoSigner.setData(ByteString.copyFrom(signer.serialize()));
walletBuilder.addTransactionSigners(protoSigner);
}
walletBuilder.setSigsRequiredToSpend(wallet.getSigsRequiredToSpend());
// Populate the wallet version.
walletBuilder.setVersion(wallet.getVersion());
return walletBuilder.build();
}