protected void ProcessPacket(ObjectPacket p)
{
if (p == null)
{
return;
}
OnBeforeProcessPacket();
var packetType = ObjectPacket.GetPacketType(p.PacketId);
MethodInfo processMethod;
if (!PacketMethods.TryGetValue(packetType, out processMethod))
{
processMethod = GetType().GetMethod("Process", new[] { packetType });
PacketMethods[packetType] = processMethod;
}
if (processMethod == null)
{
throw new NotImplementedException(string.Format("Not Implemented Exception: Method Process({0}).", packetType));
}
_parameterCache[0] = p;
processMethod.Invoke(this, _parameterCache);
OnAfterProcessPacket();
}
public virtual void SendObjectPacket(ObjectPacket packet, bool encrypt, bool compress = false)
{
if (Socket != null)
{
Socket.SendObjectPacket(packet, encrypt, compress);
}
}
public void SendObjectPacket(ObjectPacket packet, bool encrypt, bool compress = false)
{
// Invoke the following generic method here to enable AOT
// public static byte[] Serialize<T>(T value, MessagePackSerializerOptions options = null, CancellationToken cancellationToken = default);
MethodInfo genericSerializeMethod;
var packetType = packet.GetType();
if (!_GenericSerializeMethods.TryGetValue(packetType, out genericSerializeMethod))
{
genericSerializeMethod = SerializeMethod.MakeGenericMethod(packetType);
_GenericSerializeMethods[packetType] = genericSerializeMethod;
}
_parameterCache2.Value[0] = packet;
_parameterCache2.Value[1] = compress ? NetSettings.LZ4CompressOptions : NetSettings.MessagePackOptions;
var data = genericSerializeMethod.Invoke(null, _parameterCache2.Value) as byte[];
var size = data.Length + HeaderTailSize;
var buffer = new MessageBuffer(size + (ServerSocket ? 4 : 2));
if (ServerSocket)
{
buffer.Write(BitConverter.GetBytes((int)size), 4);
}
else
{
buffer.Write(BitConverter.GetBytes((ushort)size), 2);
}
buffer.Write(BitConverter.GetBytes(packet.PacketId), 4);
buffer.Write(BitConverter.GetBytes(compress), 1);
buffer.Write(data, data.Length);
if (encrypt)
{
_authCrypt.EncryptSend(buffer.Data(), 0, SendHeaderSize);
}
SendPacket(buffer);
}
public virtual void QueuePacket(ObjectPacket packet)
{
_receiveQueue.Enqueue(packet);
}
protected override void ReadHandler()
{
MessageBuffer buffer = GetReadBuffer();
while (buffer.GetActiveSize() > 0)
{
int size = RecvHeaderSize;
if (buffer.GetActiveSize() < size)
{
break;
}
// We just received nice new header
if (!_NextPacketDecrypted)
{
_authCrypt.DecryptRecv(buffer.Data(), buffer.Rpos(), size);
}
_NextPacketDecrypted = false;
var addr = Marshal.UnsafeAddrOfPinnedArrayElement(buffer.Data(), buffer.Rpos());
int packetId;
bool compressed;
if (ServerSocket)
{
var header = Marshal.PtrToStructure <ClientPacketHeader>(addr);
size = header.Size + sizeof(ushort);
packetId = header.PacketId;
compressed = header.Compressed != 0;
}
else
{
var header = Marshal.PtrToStructure <ServerPacketHeader>(addr);
size = header.Size + sizeof(int);
packetId = header.PacketId;
compressed = header.Compressed != 0;
}
var packetType = ObjectPacket.GetPacketType(packetId);
if (packetType == null || size <= 0 || size >= _MaxPacketSize)
{
if (LogException)
{
var message = string.Format("Client {0} sent malformed packet (size: {1}, packetId: {2}).", RemoteAddress, size, packetId);
if (NetSettings.Logger != null)
{
NetSettings.Logger.Warn(message);
}
else
{
Console.WriteLine(message);
}
}
if (CloseOnMalformedPacket)
{
CloseSocket();
return;
}
else
{
// Buffer are corrupted, reset!
buffer.Reset();
continue;
}
}
if (buffer.GetActiveSize() < size)
{
// NOTE: The header buffer of next upcoming packet is already decrypted in above code.
// We must skip _authCrypt.DecryptRecv() for next packet.
_NextPacketDecrypted = true;
break;
}
buffer.ReadCompleted(RecvHeaderSize);
size -= RecvHeaderSize;
DeserializePacket(packetType, compressed, size, buffer);
}
AsyncRead();
}
/// <summary>
/// Collect all ObjectPacket classes in assemblies for handling packet serialization and deserialization.
/// </summary>
public static void InstallPackets(params Assembly[] packetAssemblies)
{
ObjectPacket.Initialize(packetAssemblies);
}
