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improve quick transaction test

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This commit is contained in:
Craig Raw 2025-01-20 09:16:29 +02:00
parent 64a3f1c00b
commit 7b9affb3de
1 changed files with 11 additions and 4 deletions
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15
src/main/java/com/sparrowwallet/drongo/protocol/Transaction.java
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@ -14,7 +14,7 @@ import static com.sparrowwallet.drongo.Utils.uint32ToByteStreamLE;
import static com.sparrowwallet.drongo.Utils.uint64ToByteStreamLE;
public class Transaction extends ChildMessage {
public static final int MAX_BLOCK_SIZE = 1000 * 1000;
public static final int MAX_BLOCK_SIZE_VBYTES = 1000 * 1000;
public static final long MAX_BITCOIN = 21 * 1000 * 1000L;
public static final long SATOSHIS_PER_BITCOIN = 100 * 1000 * 1000L;
public static final long MAX_BLOCK_LOCKTIME = 500000000L;
@ -395,7 +395,7 @@ public class Transaction extends ChildMessage {
public void verify() throws VerificationException {
if (inputs.size() == 0 || outputs.size() == 0)
throw new VerificationException.EmptyInputsOrOutputs();
if (this.getMessageSize() > MAX_BLOCK_SIZE)
if (this.getMessageSize() > (MAX_BLOCK_SIZE_VBYTES * WITNESS_SCALE_FACTOR))
throw new VerificationException.LargerThanMaxBlockSize();
HashSet<TransactionOutPoint> outpoints = new HashSet<>();
@ -437,11 +437,18 @@ public class Transaction extends ChildMessage {
public static boolean isTransaction(byte[] bytes) {
//Incomplete quick test
if(bytes.length == 0) {
if(bytes.length <= 5 || bytes.length > (MAX_BLOCK_SIZE_VBYTES * WITNESS_SCALE_FACTOR)) {
return false;
}
long version = Utils.readUint32(bytes, 0);
return version > 0 && version < 5;
if(version <= 0) {
return false;
}
boolean segwit = (bytes[4] == 0);
if(segwit && bytes[5] == 0) {
return false;
}
return true;
}
public Sha256Hash hashForLegacySignature(int inputIndex, Script redeemScript, SigHash sigHash) {