private void serDeser(
BitcoinSerializer bs,
Message message,
byte[] sourceBytes,
byte[] containedBytes,
byte[] containingBytes)
throws Exception {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bs.serialize(message, bos);
byte[] b1 = bos.toByteArray();
Message m2 = bs.deserialize(new ByteArrayInputStream(b1));
assertEquals(message, m2);
bos.reset();
bs.serialize(m2, bos);
byte[] b2 = bos.toByteArray();
assertTrue(Arrays.equals(b1, b2));
if (sourceBytes != null) {
assertTrue(arrayContains(sourceBytes, b1));
assertTrue(arrayContains(sourceBytes, b2));
}
if (containedBytes != null) {
assertTrue(arrayContains(b1, containedBytes));
}
if (containingBytes != null) {
assertTrue(arrayContains(containingBytes, b1));
}
}
@Before
public void setUp() throws Exception {
unitTestParams = UnitTestParams.get();
wallet = new Wallet(unitTestParams);
wallet.addKey(new ECKey());
resetBlockStore();
Transaction tx1 =
createFakeTx(
unitTestParams,
Utils.toNanoCoins(2, 0),
wallet.getKeys().get(0).toAddress(unitTestParams));
// add a second input so can test granularity of byte cache.
Transaction prevTx = new Transaction(unitTestParams);
TransactionOutput prevOut =
new TransactionOutput(
unitTestParams,
prevTx,
Utils.toNanoCoins(1, 0),
wallet.getKeys().get(0).toAddress(unitTestParams));
prevTx.addOutput(prevOut);
// Connect it.
tx1.addInput(prevOut);
Transaction tx2 =
createFakeTx(
unitTestParams, Utils.toNanoCoins(1, 0), new ECKey().toAddress(unitTestParams));
Block b1 = createFakeBlock(blockStore, tx1, tx2).block;
BitcoinSerializer bs = new BitcoinSerializer(unitTestParams);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bs.serialize(tx1, bos);
tx1BytesWithHeader = bos.toByteArray();
tx1Bytes = tx1.bitcoinSerialize();
bos.reset();
bs.serialize(tx2, bos);
tx2BytesWithHeader = bos.toByteArray();
tx2Bytes = tx2.bitcoinSerialize();
bos.reset();
bs.serialize(b1, bos);
b1BytesWithHeader = bos.toByteArray();
b1Bytes = b1.bitcoinSerialize();
}
public void testBlock(byte[] blockBytes, boolean isChild, boolean lazy, boolean retain)
throws Exception {
// reference serializer to produce comparison serialization output after changes to
// message structure.
BitcoinSerializer bsRef = new BitcoinSerializer(unitTestParams, false, false);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
BitcoinSerializer bs = new BitcoinSerializer(unitTestParams, lazy, retain);
Block b1;
Block bRef;
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// verify our reference BitcoinSerializer produces matching byte array.
bos.reset();
bsRef.serialize(bRef, bos);
assertTrue(Arrays.equals(bos.toByteArray(), blockBytes));
// check lazy and retain status survive both before and after a serialization
assertEquals(!lazy, b1.isParsedTransactions());
assertEquals(!lazy, b1.isParsedHeader());
if (b1.isParsedHeader()) assertEquals(retain, b1.isHeaderBytesValid());
if (b1.isParsedTransactions()) assertEquals(retain, b1.isTransactionBytesValid());
serDeser(bs, b1, blockBytes, null, null);
assertEquals(!lazy, b1.isParsedTransactions());
assertEquals(!lazy, b1.isParsedHeader());
if (b1.isParsedHeader()) assertEquals(retain, b1.isHeaderBytesValid());
if (b1.isParsedTransactions()) assertEquals(retain, b1.isTransactionBytesValid());
// compare to ref block
bos.reset();
bsRef.serialize(bRef, bos);
serDeser(bs, b1, bos.toByteArray(), null, null);
// retrieve a value from a child
b1.getTransactions();
assertTrue(b1.isParsedTransactions());
if (b1.getTransactions().size() > 0) {
assertTrue(b1.isParsedTransactions());
Transaction tx1 = b1.getTransactions().get(0);
// this will always be true for all children of a block once they are retrieved.
// the tx child inputs/outputs may not be parsed however.
// no longer forced to parse if length not provided.
// assertEquals(true, tx1.isParsed());
if (tx1.isParsed()) assertEquals(retain, tx1.isCached());
else assertTrue(tx1.isCached());
// does it still match ref block?
serDeser(bs, b1, bos.toByteArray(), null, null);
}
// refresh block
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// retrieve a value from header
b1.getDifficultyTarget();
assertTrue(b1.isParsedHeader());
assertEquals(lazy, !b1.isParsedTransactions());
// does it still match ref block?
serDeser(bs, b1, bos.toByteArray(), null, null);
// refresh block
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// retrieve a value from a child and header
b1.getDifficultyTarget();
assertTrue(b1.isParsedHeader());
assertEquals(lazy, !b1.isParsedTransactions());
b1.getTransactions();
assertTrue(b1.isParsedTransactions());
if (b1.getTransactions().size() > 0) {
assertTrue(b1.isParsedTransactions());
Transaction tx1 = b1.getTransactions().get(0);
// no longer forced to parse if length not provided.
// assertEquals(true, tx1.isParsed());
if (tx1.isParsed()) assertEquals(retain, tx1.isCached());
else assertTrue(tx1.isCached());
}
// does it still match ref block?
serDeser(bs, b1, bos.toByteArray(), null, null);
// refresh block
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// change a value in header
b1.setNonce(23);
bRef.setNonce(23);
assertTrue(b1.isParsedHeader());
assertEquals(lazy, !b1.isParsedTransactions());
assertFalse(b1.isHeaderBytesValid());
if (b1.isParsedTransactions()) assertEquals(retain, b1.isTransactionBytesValid());
else assertEquals(true, b1.isTransactionBytesValid());
// does it still match ref block?
bos.reset();
bsRef.serialize(bRef, bos);
serDeser(bs, b1, bos.toByteArray(), null, null);
// refresh block
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// retrieve a value from a child of a child
b1.getTransactions();
if (b1.getTransactions().size() > 0) {
Transaction tx1 = b1.getTransactions().get(0);
TransactionInput tin = tx1.getInputs().get(0);
assertTrue(tx1.isParsed());
assertTrue(b1.isParsedTransactions());
assertEquals(!lazy, b1.isParsedHeader());
assertEquals(!lazy, tin.isParsed());
assertEquals(tin.isParsed() ? retain : true, tin.isCached());
// does it still match ref tx?
bos.reset();
bsRef.serialize(bRef, bos);
serDeser(bs, b1, bos.toByteArray(), null, null);
}
// refresh block
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// add an input
b1.getTransactions();
if (b1.getTransactions().size() > 0) {
Transaction tx1 = b1.getTransactions().get(0);
if (tx1.getInputs().size() > 0) {
tx1.addInput(tx1.getInputs().get(0));
// replicate on reference tx
bRef.getTransactions().get(0).addInput(bRef.getTransactions().get(0).getInputs().get(0));
assertFalse(tx1.isCached());
assertTrue(tx1.isParsed());
assertFalse(b1.isTransactionBytesValid());
assertTrue(b1.isParsedHeader());
// confirm sibling cache status was unaffected
if (tx1.getInputs().size() > 1) {
boolean parsed = tx1.getInputs().get(1).isParsed();
assertEquals(parsed ? retain : true, tx1.getInputs().get(1).isCached());
assertEquals(!lazy, parsed);
}
// this has to be false. Altering a tx invalidates the merkle root.
// when we have seperate merkle caching then the entire header won't need to be
// invalidated.
assertFalse(b1.isHeaderBytesValid());
bos.reset();
bsRef.serialize(bRef, bos);
byte[] source = bos.toByteArray();
// confirm we still match the reference tx.
serDeser(bs, b1, source, null, null);
}
// does it still match ref tx?
bos.reset();
bsRef.serialize(bRef, bos);
serDeser(bs, b1, bos.toByteArray(), null, null);
}
// refresh block
b1 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
Block b2 = (Block) bs.deserialize(new ByteArrayInputStream(blockBytes));
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
Block bRef2 = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
// reparent an input
b1.getTransactions();
if (b1.getTransactions().size() > 0) {
Transaction tx1 = b1.getTransactions().get(0);
Transaction tx2 = b2.getTransactions().get(0);
if (tx1.getInputs().size() > 0) {
TransactionInput fromTx1 = tx1.getInputs().get(0);
tx2.addInput(fromTx1);
// replicate on reference tx
TransactionInput fromTxRef = bRef.getTransactions().get(0).getInputs().get(0);
bRef2.getTransactions().get(0).addInput(fromTxRef);
// b1 hasn't changed but it's no longer in the parent
// chain of fromTx1 so has to have been uncached since it won't be
// notified of changes throught the parent chain anymore.
assertFalse(b1.isTransactionBytesValid());
// b2 should have it's cache invalidated because it has changed.
assertFalse(b2.isTransactionBytesValid());
bos.reset();
bsRef.serialize(bRef2, bos);
byte[] source = bos.toByteArray();
// confirm altered block matches altered ref block.
serDeser(bs, b2, source, null, null);
}
// does unaltered block still match ref block?
bos.reset();
bsRef.serialize(bRef, bos);
serDeser(bs, b1, bos.toByteArray(), null, null);
// how about if we refresh it?
bRef = (Block) bsRef.deserialize(new ByteArrayInputStream(blockBytes));
bos.reset();
bsRef.serialize(bRef, bos);
serDeser(bs, b1, bos.toByteArray(), null, null);
}
}
public void testTransaction(
NetworkParameters params, byte[] txBytes, boolean isChild, boolean lazy, boolean retain)
throws Exception {
// reference serializer to produce comparison serialization output after changes to
// message structure.
BitcoinSerializer bsRef = new BitcoinSerializer(params, false, false);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
BitcoinSerializer bs = new BitcoinSerializer(params, lazy, retain);
Transaction t1;
Transaction tRef;
t1 = (Transaction) bs.deserialize(new ByteArrayInputStream(txBytes));
tRef = (Transaction) bsRef.deserialize(new ByteArrayInputStream(txBytes));
// verify our reference BitcoinSerializer produces matching byte array.
bos.reset();
bsRef.serialize(tRef, bos);
assertTrue(Arrays.equals(bos.toByteArray(), txBytes));
// check lazy and retain status survive both before and after a serialization
assertEquals(!lazy, t1.isParsed());
if (t1.isParsed()) assertEquals(retain, t1.isCached());
serDeser(bs, t1, txBytes, null, null);
assertEquals(lazy, !t1.isParsed());
if (t1.isParsed()) assertEquals(retain, t1.isCached());
// compare to ref tx
bos.reset();
bsRef.serialize(tRef, bos);
serDeser(bs, t1, bos.toByteArray(), null, null);
// retrieve a value from a child
t1.getInputs();
assertTrue(t1.isParsed());
if (t1.getInputs().size() > 0) {
assertTrue(t1.isParsed());
TransactionInput tin = t1.getInputs().get(0);
assertEquals(!lazy, tin.isParsed());
if (tin.isParsed()) assertEquals(retain, tin.isCached());
// does it still match ref tx?
serDeser(bs, t1, bos.toByteArray(), null, null);
}
// refresh tx
t1 = (Transaction) bs.deserialize(new ByteArrayInputStream(txBytes));
tRef = (Transaction) bsRef.deserialize(new ByteArrayInputStream(txBytes));
// add an input
if (t1.getInputs().size() > 0) {
t1.addInput(t1.getInputs().get(0));
// replicate on reference tx
tRef.addInput(tRef.getInputs().get(0));
assertFalse(t1.isCached());
assertTrue(t1.isParsed());
bos.reset();
bsRef.serialize(tRef, bos);
byte[] source = bos.toByteArray();
// confirm we still match the reference tx.
serDeser(bs, t1, source, null, null);
}
}
@Test
public void badMessage() throws Exception {
// Bring up an actual network connection and feed it bogus data.
final SettableFuture<Void> result = SettableFuture.create();
Threading.uncaughtExceptionHandler =
new Thread.UncaughtExceptionHandler() {
@Override
public void uncaughtException(Thread thread, Throwable throwable) {
result.setException(throwable);
}
};
connect(); // Writes out a verack+version.
final SettableFuture<Void> peerDisconnected = SettableFuture.create();
writeTarget.peer.addEventListener(
new AbstractPeerEventListener() {
@Override
public void onPeerDisconnected(Peer p, int peerCount) {
peerDisconnected.set(null);
}
});
final NetworkParameters params = TestNet3Params.get();
BitcoinSerializer serializer = new BitcoinSerializer(params);
// Now write some bogus truncated message.
ByteArrayOutputStream out = new ByteArrayOutputStream();
serializer.serialize(
"inv",
new InventoryMessage(params) {
@Override
public void bitcoinSerializeToStream(OutputStream stream) throws IOException {
// Add some hashes.
addItem(
new InventoryItem(
InventoryItem.Type.Transaction, Sha256Hash.create(new byte[] {1})));
addItem(
new InventoryItem(
InventoryItem.Type.Transaction, Sha256Hash.create(new byte[] {2})));
addItem(
new InventoryItem(
InventoryItem.Type.Transaction, Sha256Hash.create(new byte[] {3})));
// Write out a copy that's truncated in the middle.
ByteArrayOutputStream bos = new ByteArrayOutputStream();
super.bitcoinSerializeToStream(bos);
byte[] bits = bos.toByteArray();
bits = Arrays.copyOf(bits, bits.length / 2);
stream.write(bits);
}
}.bitcoinSerialize(),
out);
writeTarget.writeTarget.writeBytes(out.toByteArray());
try {
result.get();
fail();
} catch (ExecutionException e) {
assertTrue(e.getCause() instanceof ProtocolException);
}
peerDisconnected.get();
try {
peer.writeTarget.writeBytes(new byte[1]);
fail();
} catch (IOException e) {
assertTrue(
(e.getCause() != null && e.getCause() instanceof CancelledKeyException)
|| (e instanceof SocketException && e.getMessage().equals("Socket is closed")));
}
}