Qortal/altcoinj
3
0
Fork 0
mirror of https://github.com/Qortal/altcoinj.git synced 2025-02-07 14:54:15 +00:00
Code Issues Projects Releases Wiki Activity

Implement some (de)serialization (so we can roundtrip msgs in test)

Browse Source 
Implements deserialization for getblocks/getheaders and supports
FilteredBlock entries in ListMessage (for getdata).
Implements serialization for FilteredBlock, HeadersMessage, and
PartialMerkleTree.
This commit is contained in:
Matt Corallo 2013-07-15 22:58:57 +02:00 committed by Mike Hearn
parent a724bcada5
commit 7011d68165
7 changed files with 48 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
core/src/main/java/com/google/bitcoin/core/BitcoinSerializer.java
View File

@ -213,6 +213,10 @@ public class BitcoinSerializer {
message = new FilteredBlock(params, payloadBytes);
} else if (command.equals("getdata")) {
message = new GetDataMessage(params, payloadBytes, parseLazy, parseRetain, length);
} else if (command.equals("getblocks")) {
message = new GetBlocksMessage(params, payloadBytes);
} else if (command.equals("getheaders")) {
message = new GetHeadersMessage(params, payloadBytes);
} else if (command.equals("tx")) {
Transaction tx = new Transaction(params, payloadBytes, null, parseLazy, parseRetain, length);
if (hash != null)

6
core/src/main/java/com/google/bitcoin/core/FilteredBlock.java
View File

@ -42,7 +42,11 @@ public class FilteredBlock extends Message {
}
public void bitcoinSerializeToStream(OutputStream stream) throws IOException {
throw new RuntimeException("Not implemented");
if (header.transactions == null)
header.bitcoinSerializeToStream(stream);
else
header.cloneAsHeader().bitcoinSerializeToStream(stream);
merkleTree.bitcoinSerializeToStream(stream);
}
@Override

11
core/src/main/java/com/google/bitcoin/core/GetBlocksMessage.java
View File

@ -38,8 +38,17 @@ public class GetBlocksMessage extends Message {
this.stopHash = stopHash;
}
public GetBlocksMessage(NetworkParameters params, byte[] msg) throws ProtocolException {
super(params, msg, 0);
}
protected void parseLite() throws ProtocolException {
// NOP. This is a root level message and should always be provided with a length.
cursor = offset;
version = readUint32();
int startCount = (int) readVarInt();
if (startCount > 500)
throw new ProtocolException("Number of locators cannot be > 500, received: " + startCount);
length = (int) (cursor - offset + ((startCount + 1) * 32));
}
public void parse() throws ProtocolException {

4
core/src/main/java/com/google/bitcoin/core/GetHeadersMessage.java
View File

@ -29,6 +29,10 @@ public class GetHeadersMessage extends GetBlocksMessage {
super(params, locator, stopHash);
}
public GetHeadersMessage(NetworkParameters params, byte[] msg) throws ProtocolException {
super(params, msg);
}
@Override
public String toString() {
StringBuffer b = new StringBuffer();

14
core/src/main/java/com/google/bitcoin/core/HeadersMessage.java
View File

@ -19,6 +19,8 @@ package com.google.bitcoin.core;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
@ -45,6 +47,18 @@ public class HeadersMessage extends Message {
blockHeaders = Arrays.asList(headers);
}
@Override
public void bitcoinSerializeToStream(OutputStream stream) throws IOException {
stream.write(new VarInt(blockHeaders.size()).encode());
for (Block header : blockHeaders) {
if (header.transactions == null)
header.bitcoinSerializeToStream(stream);
else
header.cloneAsHeader().bitcoinSerializeToStream(stream);
stream.write(0);
}
}
@Override
protected void parseLite() throws ProtocolException {
if (length == UNKNOWN_LENGTH) {

3
core/src/main/java/com/google/bitcoin/core/ListMessage.java
View File

@ -99,6 +99,9 @@ public abstract class ListMessage extends Message {
case 2:
type = InventoryItem.Type.Block;
break;
case 3:
type = InventoryItem.Type.FilteredBlock;
break;
default:
throw new ProtocolException("Unknown CInv type: " + typeCode);
}

9
core/src/main/java/com/google/bitcoin/core/PartialMerkleTree.java
View File

@ -65,7 +65,14 @@ public class PartialMerkleTree extends Message {
}
public void bitcoinSerializeToStream(OutputStream stream) throws IOException {
throw new RuntimeException("Not implemented");
Utils.uint32ToByteStreamLE(transactionCount, stream);
stream.write(new VarInt(hashes.size()).encode());
for (Sha256Hash hash : hashes)
stream.write(Utils.reverseBytes(hash.getBytes()));
stream.write(new VarInt(matchedChildBits.length).encode());
stream.write(matchedChildBits);
}
@Override