public static void ProcessOpcodes(Session MySession, ushort MessageTypeOpcode, List <byte> myPacket)
{
///Expected message length
ushort MessageLength;
ushort MessageNumber;
ushort Opcode;
///Short message, 1 byte for message length
if ((MessageTypeOpcode == MessageOpcodeTypes.ShortReliableMessage) || (MessageTypeOpcode == MessageOpcodeTypes.UnknownMessage))
{
MessageLength = (ushort)myPacket[0];
///Remove read byte
myPacket.RemoveRange(0, 1);
}
///Long message, 2 bytes for message length
else
{
MessageLength = (ushort)(myPacket[1] << 8 | myPacket[0]);
///Remove 2 read bytes
myPacket.RemoveRange(0, 2);
}
///Make sure Message number is expected, needs to be in order.
MessageNumber = (ushort)(myPacket[1] << 8 | myPacket[0]);
if (MySession.clientMessageNumber + 1 == MessageNumber)
{
///Increment for every message read, in order.
MySession.IncrementClientMessageNumber();
//If F9 type, no opcode process it seperately.
if (MessageTypeOpcode == MessageOpcodeTypes.UnknownMessage)
{
myPacket.RemoveRange(0, 2);
ProcessPingRequest(MySession, myPacket);
return;
}
Opcode = (ushort)(myPacket[3] << 8 | myPacket[2]);
Logger.Info($"Message Length: {MessageLength}; OpcodeType: {MessageTypeOpcode.ToString("X")}; Message Number: {MessageNumber.ToString("X")}; Opcode: {Opcode.ToString("X")}.");
///Remove 4 read bytes (Opcode and Message #)
myPacket.RemoveRange(0, 4);
//Remove the opcode bytes we read
MessageLength -= 2;
///Pass remaining to opcode checker for more processing
OpcodeChecker(MySession, Opcode, myPacket, MessageLength);
}
///Not expected order?
///Expand on eventually
else
{
//Remove packet# and message bytes
myPacket.RemoveRange(0, MessageLength + 2);
return;
}
}
public KeyValuePair <string, string> ToSearchResult() => new KeyValuePair <string, string>(MessageNumber.ToString(), MessageDescription);