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);
}
}
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);
}
}
}
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;
}
@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();
}
@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();
}
private static Protos.Transaction makeTxProto(WalletTransaction wtx) {
Transaction tx = wtx.getTransaction();
Protos.Transaction.Builder txBuilder = Protos.Transaction.newBuilder();
txBuilder
.setPool(Protos.Transaction.Pool.valueOf(wtx.getPool().getValue()))
.setHash(hashToByteString(tx.getHash()))
.setVersion((int) tx.getVersion());
if (tx.getUpdateTime() != null) {
txBuilder.setUpdatedAt(tx.getUpdateTime().getTime());
}
if (tx.getLockTime() > 0) {
txBuilder.setLockTime((int) tx.getLockTime());
}
// Handle inputs.
for (TransactionInput input : tx.getInputs()) {
Protos.TransactionInput.Builder inputBuilder =
Protos.TransactionInput.newBuilder()
.setScriptBytes(ByteString.copyFrom(input.getScriptBytes()))
.setTransactionOutPointHash(hashToByteString(input.getOutpoint().getHash()))
.setTransactionOutPointIndex((int) input.getOutpoint().getIndex());
if (input.hasSequence()) {
inputBuilder.setSequence((int) input.getSequenceNumber());
}
txBuilder.addTransactionInput(inputBuilder);
}
// Handle outputs.
for (TransactionOutput output : tx.getOutputs()) {
Protos.TransactionOutput.Builder outputBuilder =
Protos.TransactionOutput.newBuilder()
.setScriptBytes(ByteString.copyFrom(output.getScriptBytes()))
.setValue(output.getValue().longValue());
final TransactionInput spentBy = output.getSpentBy();
if (spentBy != null) {
Sha256Hash spendingHash = spentBy.getParentTransaction().getHash();
int spentByTransactionIndex = spentBy.getParentTransaction().getInputs().indexOf(spentBy);
outputBuilder
.setSpentByTransactionHash(hashToByteString(spendingHash))
.setSpentByTransactionIndex(spentByTransactionIndex);
}
txBuilder.addTransactionOutput(outputBuilder);
}
// Handle which blocks tx was seen in.
if (tx.getAppearsInHashes() != null) {
for (Sha256Hash hash : tx.getAppearsInHashes()) {
txBuilder.addBlockHash(hashToByteString(hash));
}
}
if (tx.hasConfidence()) {
TransactionConfidence confidence = tx.getConfidence();
Protos.TransactionConfidence.Builder confidenceBuilder =
Protos.TransactionConfidence.newBuilder();
writeConfidence(txBuilder, confidence, confidenceBuilder);
}
return txBuilder.build();
}
