public override void Init()
{
if (Logger.IsTrace)
{
Logger.Trace($"{ProtocolCode} v{ProtocolVersion} subprotocol initializing with {Session.Node:c}");
}
if (SyncServer.Head == null)
{
throw new InvalidOperationException($"Cannot initialize {ProtocolCode} v{ProtocolVersion} protocol without the head block set");
}
BlockHeader head = SyncServer.Head;
StatusMessage statusMessage = new StatusMessage();
statusMessage.ChainId = (UInt256)SyncServer.ChainId;
statusMessage.ProtocolVersion = ProtocolVersion;
statusMessage.TotalDifficulty = head.TotalDifficulty ?? head.Difficulty;
statusMessage.BestHash = head.Hash;
statusMessage.GenesisHash = SyncServer.Genesis.Hash;
Send(statusMessage);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportOutgoingMessage(Session.Node.Host, Name, statusMessage.ToString());
}
Metrics.StatusesSent++;
//We are expecting receiving Status message anytime from the p2p completion, irrespective of sending Status from our side
CheckProtocolInitTimeout().ContinueWith(x =>
{
if (x.IsFaulted && Logger.IsError)
{
Logger.Error("Error during eth62Protocol handler timeout logic", x.Exception);
}
});
}
public virtual void HandleMessage(ZeroPacket message)
{
if (Logger.IsTrace)
{
Logger.Trace($"Handling {message} message from {Session.Node:c}.");
}
if (message.PacketType != Eth62MessageCode.Status && !_statusReceived)
{
throw new SubprotocolException($"No {nameof(StatusMessage)} received prior to communication with {Session.Node:c}.");
}
int size = message.Content.ReadableBytes;
// Logger.Warn($"Received a message {message.Protocol}.{Enum.GetName(typeof(Eth62MessageCode), message.PacketType)} of size {size/1024}kb");
switch (message.PacketType)
{
case Eth62MessageCode.Status:
StatusMessage statusMessage = Deserialize <StatusMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, statusMessage.ToString());
}
Handle(statusMessage);
break;
case Eth62MessageCode.NewBlockHashes:
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, nameof(NewBlockHashesMessage));
}
Interlocked.Increment(ref Counter);
if (Logger.IsTrace)
{
Logger.Trace($"{Counter:D5} NewBlockHashes from {Node:c}");
}
Metrics.Eth62NewBlockHashesReceived++;
Handle(Deserialize <NewBlockHashesMessage>(message.Content));
break;
case Eth62MessageCode.Transactions:
Interlocked.Increment(ref Counter);
Metrics.Eth62TransactionsReceived++;
TransactionsMessage transactionsMessage = Deserialize <TransactionsMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, $"{nameof(TransactionsMessage)}({transactionsMessage.Transactions.Length})");
}
if (!_isDowngradedDueToTxFlooding || 10 > _random.Next(0, 99)) // TODO: disable that when IsMining is set to true
{
Handle(transactionsMessage);
}
break;
case Eth62MessageCode.GetBlockHeaders:
Interlocked.Increment(ref Counter);
if (Logger.IsTrace)
{
Logger.Trace($"{Counter:D5} GetBlockHeaders from {Node:c}");
}
Metrics.Eth62GetBlockHeadersReceived++;
GetBlockHeadersMessage getBlockHeadersMessage = Deserialize <GetBlockHeadersMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, $"{nameof(GetBlockHeadersMessage)}({getBlockHeadersMessage.StartingBlockNumber}|{getBlockHeadersMessage.StartingBlockHash}, {getBlockHeadersMessage.MaxHeaders})");
}
Handle(getBlockHeadersMessage);
break;
case Eth62MessageCode.BlockHeaders:
Interlocked.Increment(ref Counter);
if (Logger.IsTrace)
{
Logger.Trace($"{Counter:D5} BlockHeaders from {Node:c}");
}
Metrics.Eth62BlockHeadersReceived++;
BlockHeadersMessage blockHeadersMessage = Deserialize <BlockHeadersMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, $"{nameof(BlockHeadersMessage)}({blockHeadersMessage.BlockHeaders.Length})");
}
Handle(blockHeadersMessage, size);
break;
case Eth62MessageCode.GetBlockBodies:
Interlocked.Increment(ref Counter);
if (Logger.IsTrace)
{
Logger.Trace($"{Counter:D5} GetBlockBodies from {Node:c}");
}
Metrics.Eth62GetBlockBodiesReceived++;
GetBlockBodiesMessage getBlockBodiesMessage = Deserialize <GetBlockBodiesMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, $"{nameof(GetBlockBodiesMessage)}({getBlockBodiesMessage.BlockHashes.Count})");
}
Handle(getBlockBodiesMessage);
break;
case Eth62MessageCode.BlockBodies:
Interlocked.Increment(ref Counter);
if (Logger.IsTrace)
{
Logger.Trace($"{Counter:D5} BlockBodies from {Node:c}");
}
Metrics.Eth62BlockBodiesReceived++;
BlockBodiesMessage blockBodiesMessage = Deserialize <BlockBodiesMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, $"{nameof(BlockBodiesMessage)}({blockBodiesMessage.Bodies.Length})");
}
Handle(blockBodiesMessage, size);
break;
case Eth62MessageCode.NewBlock:
Interlocked.Increment(ref Counter);
if (Logger.IsTrace)
{
Logger.Trace($"{Counter:D5} NewBlock from {Node:c}");
}
Metrics.Eth62NewBlockReceived++;
NewBlockMessage newBlockMessage = Deserialize <NewBlockMessage>(message.Content);
if (NetworkDiagTracer.IsEnabled)
{
NetworkDiagTracer.ReportIncomingMessage(Session.Node.Host, Name, $"{nameof(NewBlockMessage)}({newBlockMessage.Block.Number})");
}
Handle(newBlockMessage);
break;
}
}