|
private ProcessMessage ( |
||
| senderEndPoint | ||
| property | PacketProperty | |
| data | byte | |
| Résultat | void | |
private void DataReceived(byte[] reusableBuffer, int count, NetEndPoint remoteEndPoint)
{
//Try get packet property
PacketProperty property;
if (!NetPacket.GetPacketProperty(reusableBuffer, out property))
{
return;
}
//Check unconnected
switch (property)
{
case PacketProperty.UnconnectedMessage:
if (UnconnectedMessagesEnabled)
{
var netEvent = CreateEvent(NetEventType.ReceiveUnconnected);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(NetPacket.GetUnconnectedData(reusableBuffer, count));
EnqueueEvent(netEvent);
}
return;
case PacketProperty.NatIntroduction:
case PacketProperty.NatIntroductionRequest:
case PacketProperty.NatPunchMessage:
if (NatPunchEnabled)
{
NatPunchModule.ProcessMessage(remoteEndPoint, property, NetPacket.GetUnconnectedData(reusableBuffer, count));
}
return;
}
//other
ReceiveFromSocket(reusableBuffer, count, remoteEndPoint);
}
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);
}
}
private void DataReceived(byte[] reusableBuffer, int count, NetEndPoint remoteEndPoint)
{
#if STATS_ENABLED
Statistics.PacketsReceived++;
Statistics.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, count);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.DiscoveryResponse:
{
var netEvent = CreateEvent(NetEventType.DiscoveryResponse);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize, count);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.UnconnectedMessage:
if (UnconnectedMessagesEnabled)
{
var netEvent = CreateEvent(NetEventType.ReceiveUnconnected);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize, count);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.NatIntroduction:
case PacketProperty.NatIntroductionRequest:
case PacketProperty.NatPunchMessage:
{
if (NatPunchEnabled)
{
NatPunchModule.ProcessMessage(remoteEndPoint, packet);
}
return;
}
}
//Check normal packets
NetPeer netPeer;
lock (_peers)
{
_peers.TryGetValue(remoteEndPoint, out netPeer);
}
if (netPeer != null &&
netPeer.ConnectionState != ConnectionState.Disconnected)
{
switch (packet.Property)
{
case PacketProperty.Disconnect:
if (netPeer.ConnectionState == ConnectionState.InProgress ||
netPeer.ConnectionState == ConnectionState.Connected)
{
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, 9, packet.Size);
netEvent.DisconnectReason = DisconnectReason.RemoteConnectionClose;
EnqueueEvent(netEvent);
}
break;
case PacketProperty.ShutdownOk:
if (netPeer.ConnectionState != ConnectionState.ShutdownRequested)
{
return;
}
netPeer.ProcessPacket(packet);
NetUtils.DebugWriteForce(ConsoleColor.Cyan, "[NM] ShutdownOK!");
break;
case PacketProperty.ConnectAccept:
if (netPeer.ProcessConnectAccept(packet))
{
var connectEvent = CreateEvent(NetEventType.Connect);
connectEvent.Peer = netPeer;
EnqueueEvent(connectEvent);
}
NetPacketPool.Recycle(packet);
return;
default:
netPeer.ProcessPacket(packet);
return;
}
return;
}
//Unacked shutdown
if (packet.Property == PacketProperty.Disconnect)
{
byte[] data = { (byte)PacketProperty.ShutdownOk };
SendRaw(data, 0, 1, remoteEndPoint);
return;
}
if (packet.Property == PacketProperty.ConnectRequest && packet.Size >= 12)
{
int peersCount = GetPeersCount(ConnectionState.Connected | ConnectionState.InProgress);
lock (_connectingPeers)
{
if (_connectingPeers.Contains(remoteEndPoint))
{
return;
}
if (peersCount < _maxConnections)
{
int protoId = BitConverter.ToInt32(packet.RawData, 1);
if (protoId != NetConstants.ProtocolId)
{
NetUtils.DebugWrite(ConsoleColor.Cyan,
"[NM] Peer connect reject. Invalid protocol ID: " + protoId);
return;
}
//Getting new id for peer
long connectionId = BitConverter.ToInt64(packet.RawData, 5);
// Read data and create request
var reader = new NetDataReader(null, 0, 0);
if (packet.Size > 12)
{
reader.SetSource(packet.RawData, 13, packet.Size);
}
_connectingPeers.Add(remoteEndPoint);
var netEvent = CreateEvent(NetEventType.ConnectionRequest);
netEvent.ConnectionRequest =
new ConnectionRequest(connectionId, remoteEndPoint, reader, OnConnectionSolved);
EnqueueEvent(netEvent);
}
}
}
}
private void DataReceived(byte[] reusableBuffer, int count, IPEndPoint remoteEndPoint)
{
#if STATS_ENABLED
Statistics.PacketsReceived++;
Statistics.BytesReceived += (uint)count;
#endif
//Try read packet
NetPacket packet = NetPacketPool.GetPacket(count, false);
if (!packet.FromBytes(reusableBuffer, 0, count))
{
NetPacketPool.Recycle(packet);
NetUtils.DebugWriteError("[NM] DataReceived: bad!");
return;
}
//get peer
//Check normal packets
NetPeer netPeer;
//old packets protection
bool peerFound = _peers.TryGetValue(remoteEndPoint, out netPeer);
//Check unconnected
switch (packet.Property)
{
case PacketProperty.DiscoveryRequest:
if (!DiscoveryEnabled)
{
break;
}
CreateEvent(NetEvent.EType.DiscoveryRequest, remoteEndPoint: remoteEndPoint, readerSource: packet);
break;
case PacketProperty.DiscoveryResponse:
CreateEvent(NetEvent.EType.DiscoveryResponse, remoteEndPoint: remoteEndPoint, readerSource: packet);
break;
case PacketProperty.UnconnectedMessage:
if (!UnconnectedMessagesEnabled)
{
break;
}
CreateEvent(NetEvent.EType.ReceiveUnconnected, remoteEndPoint: remoteEndPoint, readerSource: packet);
break;
case PacketProperty.NatIntroduction:
case PacketProperty.NatIntroductionRequest:
case PacketProperty.NatPunchMessage:
if (NatPunchEnabled)
{
NatPunchModule.ProcessMessage(remoteEndPoint, packet);
}
break;
case PacketProperty.Disconnect:
if (peerFound)
{
var disconnectResult = netPeer.ProcessDisconnect(packet);
if (disconnectResult == DisconnectResult.None)
{
NetPacketPool.Recycle(packet);
return;
}
if (disconnectResult == DisconnectResult.Disconnect)
{
_connectedPeersCount--;
}
CreateEvent(
NetEvent.EType.Disconnect,
netPeer,
disconnectReason: disconnectResult == DisconnectResult.Disconnect
? DisconnectReason.RemoteConnectionClose
: DisconnectReason.ConnectionRejected,
readerSource: packet
);
}
else
{
NetPacketPool.Recycle(packet);
}
//Send shutdown
SendRaw(new[] { (byte)PacketProperty.ShutdownOk }, 0, 1, remoteEndPoint);
break;
case PacketProperty.ConnectAccept:
var connAccept = NetConnectAcceptPacket.FromData(packet);
if (connAccept != null && peerFound && netPeer.ProcessConnectAccept(connAccept))
{
CreateEvent(NetEvent.EType.Connect, netPeer);
}
break;
case PacketProperty.ConnectRequest:
var connRequest = NetConnectRequestPacket.FromData(packet);
if (connRequest != null)
{
ProcessConnectRequest(remoteEndPoint, netPeer, connRequest);
}
break;
default:
if (peerFound)
{
netPeer.ProcessPacket(packet);
}
break;
}
}
private void DataReceived(byte[] reusableBuffer, int count, IPEndPoint remoteEndPoint)
{
#if STATS_ENABLED
Statistics.PacketsReceived++;
Statistics.BytesReceived += (uint)count;
#endif
//Try read packet
NetPacket packet = NetPacketPool.GetPacket(count, false);
if (!packet.FromBytes(reusableBuffer, 0, count))
{
NetPacketPool.Recycle(packet);
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, count);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.DiscoveryResponse:
{
var netEvent = CreateEvent(NetEventType.DiscoveryResponse);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize, count);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.UnconnectedMessage:
if (UnconnectedMessagesEnabled)
{
var netEvent = CreateEvent(NetEventType.ReceiveUnconnected);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.DataReader.SetSource(packet.RawData, NetConstants.HeaderSize, count);
EnqueueEvent(netEvent);
}
return;
case PacketProperty.NatIntroduction:
case PacketProperty.NatIntroductionRequest:
case PacketProperty.NatPunchMessage:
{
if (NatPunchEnabled)
{
NatPunchModule.ProcessMessage(remoteEndPoint, packet);
}
return;
}
}
//Check normal packets
NetPeer netPeer;
bool isPeerConnecting;
lock (_connectingPeers)
{
isPeerConnecting = _connectingPeers.Contains(remoteEndPoint);
_peers.TryGetValue(remoteEndPoint, out netPeer);
}
if (netPeer != null)
{
if (netPeer.ConnectionState == ConnectionState.Disconnected)
{
return;
}
NetEvent netEvent;
switch (packet.Property)
{
case PacketProperty.Disconnect:
if (netPeer.ConnectionState == ConnectionState.InProgress ||
netPeer.ConnectionState == ConnectionState.Connected)
{
if (BitConverter.ToInt64(packet.RawData, 1) != netPeer.ConnectId)
{
//Old or incorrect disconnect
NetPacketPool.Recycle(packet);
return;
}
netEvent = CreateEvent(NetEventType.Disconnect);
netEvent.Peer = netPeer;
netEvent.DataReader.SetSource(packet.RawData, 9, packet.Size);
netEvent.DisconnectReason = DisconnectReason.RemoteConnectionClose;
EnqueueEvent(netEvent);
netPeer.ProcessPacket(packet);
SendRaw(new[] { (byte)PacketProperty.ShutdownOk }, 0, 1, remoteEndPoint);
}
return;
case PacketProperty.ConnectAccept:
if (netPeer.ProcessConnectAccept(packet))
{
var connectEvent = CreateEvent(NetEventType.Connect);
connectEvent.Peer = netPeer;
EnqueueEvent(connectEvent);
}
return;
case PacketProperty.ConnectRequest:
long newId = BitConverter.ToInt64(packet.RawData, NetConstants.RequestConnectIdIndex);
NetUtils.DebugWrite("ConnectRequest LastId: {0}, NewId: {1}, EP: {2}", netPeer.ConnectId, newId, remoteEndPoint);
//Remove old peer and connect new
if (newId > netPeer.ConnectId)
{
netEvent = CreateEvent(NetEventType.Disconnect);
netEvent.Peer = netPeer;
netEvent.DataReader.SetSource(packet.RawData, 9, packet.Size);
netEvent.DisconnectReason = DisconnectReason.RemoteConnectionClose;
_peers.RemovePeer(netPeer);
break;
//To reconnect peer
}
else
{
//Just answer accept
netPeer.ProcessPacket(packet);
return;
}
default:
netPeer.ProcessPacket(packet);
return;
}
}
//Unacked shutdown
if (packet.Property == PacketProperty.Disconnect)
{
SendRaw(new[] { (byte)PacketProperty.ShutdownOk }, 0, 1, remoteEndPoint);
return;
}
if (packet.Property == PacketProperty.ConnectRequest && packet.Size >= 12)
{
NetUtils.DebugWrite("[NM] Received ConnectionRequest");
if (isPeerConnecting)
{
NetUtils.DebugWrite("[NM] Peer already connecting");
return;
}
if (GetPeersCount(ConnectionState.Connected | ConnectionState.InProgress) < _maxConnections)
{
int protoId = BitConverter.ToInt32(packet.RawData, 1);
if (protoId != NetConstants.ProtocolId)
{
NetUtils.DebugWrite(ConsoleColor.Cyan,
"[NM] Peer connect reject. Invalid protocol ID: " + protoId);
return;
}
//Getting new id for peer
long connectionId = BitConverter.ToInt64(packet.RawData, 5);
// Read data and create request
var reader = new NetDataReader(null, 0, 0);
if (packet.Size > 12)
{
reader.SetSource(packet.RawData, 13, packet.Size);
}
NetUtils.DebugWrite("[NM] Creating request event: " + connectionId);
lock (_connectingPeers)
{
_connectingPeers.Add(remoteEndPoint);
}
var netEvent = CreateEvent(NetEventType.ConnectionRequest);
netEvent.ConnectionRequest =
new ConnectionRequest(connectionId, remoteEndPoint, reader, OnConnectionSolved);
EnqueueEvent(netEvent);
}
}
}