//Constructor
public GMTCPClient(Socket sock, AbstractServer parent)
: base(sock, parent)
{
PacketBuffer handshakePacket = new PacketBuffer();
Logger.Trace("Connection Accepted. Beginning GM Handshake...");
handshakePacket.WriteString("GM:Studio-Connect", true);
base.SendPacket(handshakePacket);
handshakeStatus = GMTCPHandshakeStage.AwaitingConnectAck;
}
//Data has been received
override protected void OnDataReceived(byte[] data, int len)
{
if (handshakeStatus == GMTCPHandshakeStage.Complete)
{
int bytesReceived = 0;
//Receive packets until all the data on the wire has been processed
while (bytesReceived < len)
{
UInt32 packetIdentifier = BitConverter.ToUInt32(data, bytesReceived);
if (packetIdentifier != 0xdeadc0de)
{
Logger.Trace("Packet dropped. Invalid identifier/magic number.");
break;
}
else
{
//Length of the packet data
UInt32 payloadLength = BitConverter.ToUInt32(data, bytesReceived + 8);
PacketBuffer p = new PacketBuffer(data, bytesReceived + 12, (int)payloadLength);
OnPacketReceived(p); //Process the packet
bytesReceived += (int)payloadLength + 12;
}
}
}
else if (handshakeStatus == GMTCPHandshakeStage.AwaitingConnectAck)
{
uint magicNumber = BitConverter.ToUInt32(data, 0);
if (magicNumber == 0xcafebabe)
{ //If the magic number matches
Logger.Trace("Connect Acknowledged Successfully, Finalizing Handshake...");
PacketBuffer handshakePacket = new PacketBuffer();
handshakePacket.WriteUInt32(0xdeafbead);
handshakePacket.WriteUInt32(0xf00dbeeb);
handshakePacket.WriteUInt32(0x0000000c);
base.SendPacket(handshakePacket);
Logger.Trace("Handshake Finalized.");
handshakeStatus = GMTCPHandshakeStage.Complete;
}
}
}
