private void HandleMessageReceived(IPEndPoint receivedFrom, byte[] buffer, int numBytesReceived)
{
NetworkPeer peer = null;
if (peersByEndpoint.TryGetValue(receivedFrom, out peer))
{
peer.HandleMessageReceived(buffer, numBytesReceived);
}
else
{
if (NeutrinoConfig.LogLevel == NeutrinoLogLevel.Debug)
{
NeutrinoConfig.Log("Received from potentially new peer at " + receivedFrom);
}
List <NetworkMessage> initialMessages = new List <NetworkMessage>(msgFactory.Read(buffer, numBytesReceived));
var connectMsg = initialMessages.FirstOrDefault <NetworkMessage>(x => (x is ConnectMessage));
if (connectMsg == null)
{
NeutrinoConfig.Log("Ignoring peer who didn't send a ConnectMessage with his initial traffic");
}
else
{
var newPeer = NeutrinoConfig.CreatePeer();
newPeer.Init(this, serverSocket, receivedFrom.Address, receivedFrom.Port, ((ConnectMessage)connectMsg).Nickname);
peersByEndpoint[(IPEndPoint)receivedFrom] = newPeer;
endpointsByPeer[newPeer] = (IPEndPoint)receivedFrom;
if (OnPeerConnected != null)
{
OnPeerConnected(newPeer);
}
newPeer.HandleMessageReceived(buffer, numBytesReceived);
}
}
}
public void Start()
{
NeutrinoConfig.Log("Node starting...");
serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
if (ServerHostname == null)
{
serverSocket.Bind(new IPEndPoint(IPAddress.Any, ServerPort));
}
else
{
serverSocket.Bind(new IPEndPoint(IPAddress.Any, 0));
var addresses = Dns.GetHostAddresses(ServerHostname);
if (addresses == null || addresses.Length == 0)
{
throw new ApplicationException("Unable to resolve server [" + ServerHostname + "]");
}
else
{
IPAddress address = addresses.FirstOrDefault <IPAddress>(x => x.AddressFamily == AddressFamily.InterNetwork);
if (address == null)
{
address = addresses.FirstOrDefault <IPAddress>(x => x.AddressFamily == AddressFamily.InterNetworkV6);
}
if (address == null)
{
throw new ApplicationException("Unable to find an IP address for server [" + ServerHostname + "]");
}
var serverPeer = NeutrinoConfig.CreatePeer();
serverPeer.Init(this, serverSocket, address, ServerPort, "Server");
IPEndPoint serverEndpoint = new IPEndPoint(address, ServerPort);
peersByEndpoint[serverEndpoint] = serverPeer;
endpointsByPeer[serverPeer] = serverEndpoint;
if (OnPeerConnected != null)
{
OnPeerConnected(serverPeer);
}
var connectMsg = msgFactory.Get <ConnectMessage>();
connectMsg.Nickname = localNickname;
SendToAll(connectMsg);
}
}
var asyncResult = serverSocket.BeginReceiveFrom(receiveBuffer, 0, NeutrinoConfig.MaxMessageSize, SocketFlags.None, ref receivedEndPoint, new AsyncCallback(HandleMessageReceived), null);
if (asyncResult.CompletedSynchronously)
{
HandleMessageReceived(asyncResult);
}
NeutrinoConfig.Log("Node started");
}
