private void Handle(GetBlockHeadersMessage getBlockHeadersMessage)
{
if (Logger.IsTrace)
{
Logger.Trace($"GetBlockHeaders.MaxHeaders: {getBlockHeadersMessage.MaxHeaders}");
Logger.Trace($"GetBlockHeaders.Reverse: {getBlockHeadersMessage.Reverse}");
Logger.Trace($"GetBlockHeaders.Skip: {getBlockHeadersMessage.Skip}");
Logger.Trace($"GetBlockHeaders.StartingBlockhash: {getBlockHeadersMessage.StartingBlockHash}");
Logger.Trace($"GetBlockHeaders.StartingBlockNumber: {getBlockHeadersMessage.StartingBlockNumber}");
}
Keccak startingHash = getBlockHeadersMessage.StartingBlockHash;
if (startingHash == null)
{
startingHash = SyncServer.Find(getBlockHeadersMessage.StartingBlockNumber)?.Hash;
}
BlockHeader[] headers =
startingHash == null
? new BlockHeader[0]
: SyncServer.FindHeaders(startingHash, (int)getBlockHeadersMessage.MaxHeaders, (int)getBlockHeadersMessage.Skip, getBlockHeadersMessage.Reverse == 1);
Send(new BlockHeadersMessage(headers));
}
private void Handle(GetBlockHeadersMessage getBlockHeadersMessage)
{
Stopwatch stopwatch = Stopwatch.StartNew();
if (Logger.IsTrace)
{
Logger.Trace($"Received headers request from {Session.Node:c}:");
Logger.Trace($" MaxHeaders: {getBlockHeadersMessage.MaxHeaders}");
Logger.Trace($" Reverse: {getBlockHeadersMessage.Reverse}");
Logger.Trace($" Skip: {getBlockHeadersMessage.Skip}");
Logger.Trace($" StartingBlockhash: {getBlockHeadersMessage.StartingBlockHash}");
Logger.Trace($" StartingBlockNumber: {getBlockHeadersMessage.StartingBlockNumber}");
}
Interlocked.Increment(ref Counter);
// to clearly state that this client is an ETH client and not ETC (and avoid disconnections on reversed sync)
// also to improve performance as this is the most common request
// if (getBlockHeadersMessage.StartingBlockNumber == 1920000 && getBlockHeadersMessage.MaxHeaders == 1)
// {
// // hardcoded response
// Packet packet = new Packet(ProtocolCode, Eth62MessageCode.BlockHeaders, Bytes.FromHexString("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"));
// Session.DeliverMessage(packet);
// if (Logger.IsTrace) Logger.Trace($"OUT {_counter:D5} hardcoded 1920000 BlockHeaders to {Node:c}");
// return;
// }
Keccak startingHash = getBlockHeadersMessage.StartingBlockHash;
if (startingHash == null)
{
startingHash = SyncServer.FindHash(getBlockHeadersMessage.StartingBlockNumber);
}
BlockHeader[] headers =
startingHash == null
? Array.Empty <BlockHeader>()
: SyncServer.FindHeaders(startingHash, (int)getBlockHeadersMessage.MaxHeaders, (int)getBlockHeadersMessage.Skip, getBlockHeadersMessage.Reverse == 1);
headers = FixHeadersForGeth(headers);
Send(new BlockHeadersMessage(headers));
stopwatch.Stop();
if (Logger.IsTrace)
{
Logger.Trace($"OUT {Counter:D5} BlockHeaders to {Node:c} in {stopwatch.Elapsed.TotalMilliseconds}ms");
}
}
public void GetCHTData(HelperTrieRequest request, List <byte[]> proofNodes, List <byte[]> auxData)
{
var cht = SyncServer.GetCHT();
// todo - enum?
if (request.AuxiliaryData == 1)
{
auxData.Add(cht.RootHash.Bytes);
return;
}
else if (request.AuxiliaryData == 2)
{
(Keccak hash, _) = cht.Get(request.Key);
var headerResult = SyncServer.FindHeaders(hash, 1, 0, false);
if (headerResult.Length != 1)
{
throw new SubprotocolException($"Unable to find header for block {request.Key.WithoutLeadingZeros().ToArray().ToLongFromBigEndianByteArrayWithoutLeadingZeros()} for GetHelperProofs response.");
}
auxData.Add(Rlp.Encode(headerResult[0]).Bytes);
}
proofNodes.AddRange(cht.BuildProof(request.Key, request.SectionIndex, request.FromLevel));
}
protected BlockHeadersMessage FulfillBlockHeadersRequest(GetBlockHeadersMessage msg)
{
if (msg.MaxHeaders > 1024)
{
throw new EthSyncException("Incoming headers request for more than 1024 headers");
}
Keccak startingHash = msg.StartBlockHash;
if (startingHash == null)
{
startingHash = SyncServer.FindHash(msg.StartBlockNumber);
}
BlockHeader[] headers =
startingHash == null
? Array.Empty <BlockHeader>()
: SyncServer.FindHeaders(startingHash, (int)msg.MaxHeaders, (int)msg.Skip, msg.Reverse == 1);
headers = FixHeadersForGeth(headers);
return(new BlockHeadersMessage(headers));
}
