public void VersionHandshake(CancellationToken cancellationToken = default(CancellationToken))
{
var listener = new PollMessageListener <IncomingMessage>();
using (MessageProducer.AddMessageListener(listener))
{
using (TraceCorrelation.Open())
{
var myVersion = CreateVersionPayload();
SendMessage(myVersion);
var version = listener.RecieveMessage(cancellationToken).AssertPayload <VersionPayload>();
_FullVersion = version;
Version = version.Version;
if (version.Nonce == NodeServer.Nonce)
{
NodeServerTrace.ConnectionToSelfDetected();
Disconnect();
throw new InvalidOperationException("Impossible to connect to self");
}
if (!version.AddressReciever.Address.Equals(ExternalEndpoint.Address))
{
NodeServerTrace.Warning("Different external address detected by the node " + version.AddressReciever.Address + " instead of " + ExternalEndpoint.Address);
}
NodeServer.ExternalAddressDetected(version.AddressReciever.Address);
if (version.Version < ProtocolVersion.MIN_PEER_PROTO_VERSION)
{
NodeServerTrace.Warning("Outdated version " + version.Version + " disconnecting");
Disconnect();
return;
}
SendMessage(new VerAckPayload());
listener.RecieveMessage(cancellationToken).AssertPayload <VerAckPayload>();
State = NodeState.HandShaked;
if (NodeServer.AdvertizeMyself)
{
AdvertiseMyself();
}
}
}
}
