private NetPeer OnConnectionSolved(ConnectionRequest request)
{
lock (_connectingPeers)
{
if (_connectingPeers.Contains(request.RemoteEndPoint))
{
_connectingPeers.Remove(request.RemoteEndPoint);
}
else
{
return(null);
}
}
if (request.Result == ConnectionRequestResult.Reject)
{
NetUtils.DebugWrite(ConsoleColor.Cyan, "[NM] Peer connect reject.");
}
else if (_peers.Count < _maxConnections)
{
//response with id
var netPeer = new NetPeer(this, request.RemoteEndPoint, request.ConnectionId);
NetUtils.DebugWrite(ConsoleColor.Cyan, "[NM] Received peer connection Id: {0}, EP: {1}",
netPeer.ConnectId, netPeer.EndPoint);
//add peer to list
_peers.Add(request.RemoteEndPoint, netPeer);
var netEvent = CreateEvent(NetEventType.Connect);
netEvent.Peer = netPeer;
EnqueueEvent(netEvent);
return(netPeer);
}
return(null);
}
private void DataReceived(byte[] reusableBuffer, int count, NetEndPoint remoteEndPoint)
{
#if STATS_ENABLED
PacketsReceived++;
BytesReceived += (uint)count;
#endif
//Try read packet
NetPacket packet = _netPacketPool.GetAndRead(reusableBuffer, 0, count);
if (packet == null)
{
NetUtils.DebugWriteError("[NM] DataReceived: bad!");
return;
}
//Check unconnected
switch (packet.Property)
{
case PacketProperty.DiscoveryRequest:
if (DiscoveryEnabled)
{
var netEvent = CreateEvent(NetEventType.DiscoveryRequest);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.DiscoveryResponse:
{
var netEvent = CreateEvent(NetEventType.DiscoveryResponse);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.UnconnectedMessage:
if (UnconnectedMessagesEnabled)
{
var netEvent = CreateEvent(NetEventType.ReceiveUnconnected);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.NatIntroduction:
case PacketProperty.NatIntroductionRequest:
case PacketProperty.NatPunchMessage:
{
if (NatPunchEnabled)
{
NatPunchModule.ProcessMessage(remoteEndPoint, packet);
}
return;
}
}
//Check normal packets
NetPeer netPeer;
//Check peers
Monitor.Enter(_peers);
int peersCount = _peers.Count;
if (_peers.TryGetValue(remoteEndPoint, out netPeer))
{
Monitor.Exit(_peers);
//Send
if (packet.Property == PacketProperty.Disconnect)
{
if (BitConverter.ToInt64(packet.RawData, 1) != netPeer.ConnectId)
{
//Old or incorrect disconnect
_netPacketPool.Recycle(packet);
return;
}
var netEvent = CreateEvent(NetEventType.Disconnect);
netEvent.Peer = netPeer;
netEvent.DataReader.SetSource(packet.RawData, 5, packet.Size - 5);
netEvent.DisconnectReason = DisconnectReason.RemoteConnectionClose;
EnqueueEvent(netEvent);
_peers.Remove(netPeer.EndPoint);
//do not recycle because no sense)
}
else if (packet.Property == PacketProperty.ConnectAccept)
{
if (netPeer.ProcessConnectAccept(packet))
{
var connectEvent = CreateEvent(NetEventType.Connect);
connectEvent.Peer = netPeer;
EnqueueEvent(connectEvent);
}
_netPacketPool.Recycle(packet);
}
else
{
netPeer.ProcessPacket(packet);
}
return;
}
try
{
if (peersCount < _maxConnections && packet.Property == PacketProperty.ConnectRequest)
{
int protoId = BitConverter.ToInt32(packet.RawData, 1);
if (protoId != NetConstants.ProtocolId)
{
NetUtils.DebugWrite(ConsoleColor.Cyan,
"[NM] Peer connect reject. Invalid protocol ID: " + protoId);
return;
}
string peerKey = Encoding.UTF8.GetString(packet.RawData, 13, packet.Size - 13);
if (peerKey != _connectKey)
{
NetUtils.DebugWrite(ConsoleColor.Cyan, "[NM] Peer connect reject. Invalid key: " + peerKey);
return;
}
//Getting new id for peer
long connectionId = BitConverter.ToInt64(packet.RawData, 5);
//response with id
netPeer = new NetPeer(this, remoteEndPoint, connectionId);
NetUtils.DebugWrite(ConsoleColor.Cyan, "[NM] Received peer connect request Id: {0}, EP: {1}",
netPeer.ConnectId, remoteEndPoint);
//clean incoming packet
_netPacketPool.Recycle(packet);
_peers.Add(remoteEndPoint, netPeer);
var netEvent = CreateEvent(NetEventType.Connect);
netEvent.Peer = netPeer;
EnqueueEvent(netEvent);
}
}
finally
{
Monitor.Exit(_peers);
}
}