public static void receive(int bytesReceived, Socket socket, State state)
{
int bytesRead = 0;
int payloadLength, bytesAvailable, bytesNeeded;
while (bytesRead < bytesReceived)
{
bytesAvailable = bytesReceived - bytesRead;
if (bytesReceived > 0)
{
if (state.packet.Length >= 7)
{
payloadLength = BitConverter.ToInt32(new byte[1].Concat(state.packet.Skip(2).Take(3)).Reverse().ToArray(), 0);
bytesNeeded = payloadLength - (state.packet.Length - 7);
if (bytesAvailable >= bytesNeeded)
{
state.packet = state.packet.Concat(state.buffer.Skip(bytesRead).Take(bytesNeeded)).ToArray();
bytesRead += bytesNeeded;
bytesAvailable -= bytesNeeded;
if (state.GetType() == typeof(ClientState))
{
ClientCrypto.DecryptPacket(socket, (ClientState)state, state.packet);
}
else if (state.GetType() == typeof(ServerState))
{
ServerCrypto.DecryptPacket(socket, (ServerState)state, state.packet);
}
state.packet = new byte[0];
}
else
{
state.packet = state.packet.Concat(state.buffer.Skip(bytesRead).Take(bytesAvailable)).ToArray();
bytesRead = bytesReceived;
bytesAvailable = 0;
}
}
else if (bytesAvailable >= 7)
{
state.packet = state.packet.Concat(state.buffer.Skip(bytesRead).Take(7)).ToArray();
bytesRead += 7;
bytesAvailable -= 7;
}
else
{
state.packet = state.packet.Concat(state.buffer.Skip(bytesRead).Take(bytesAvailable)).ToArray();
bytesRead = bytesReceived;
bytesAvailable = 0;
}
}
}
}
