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// Protocol17x.h
/*
Declares the 1.7.x protocol classes:
- cProtocol172
- release 1.7.2 protocol (#4)
(others may be added later in the future for the 1.7 release series)
*/
#pragma once
#include "Protocol16x.h"
class cProtocol172 :
public cProtocol162 // TODO
{
typedef cProtocol162 super; // TODO
public:
cProtocol172(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State);
/// Called when client sends some data:
virtual void DataReceived(const char * a_Data, int a_Size) override;
protected:
AString m_ServerAddress;
UInt16 m_ServerPort;
/// State of the protocol. 1 = status, 2 = login
UInt32 m_State;
/// Buffer for the received data
cByteBuffer m_ReceivedData;
bool m_IsEncrypted;
CryptoPP::CFB_Mode<CryptoPP::AES>::Decryption m_Decryptor;
CryptoPP::CFB_Mode<CryptoPP::AES>::Encryption m_Encryptor;
/// (Unencrypted) data to be sent to the client. Written by SendData, cleared by Flush()
AString m_DataToSend;
/// Adds the received (unencrypted) data to m_ReceivedData, parses complete packets
void AddReceivedData(const char * a_Data, int a_Size);
/// Reads and handles the packet. The packet length and type have already been read.
void HandlePacket(UInt32 a_PacketType, UInt32 a_RemainingBytes);
// Packet handlers while in the Status state (m_State == 1)
void HandlePacketStatusRequest(UInt32 a_RemainingBytes);
void HandlePacketStatusPing (UInt32 a_RemainingBytes);
/// Writes an entire packet into the output stream. a_Packet is expected to start with the packet type; data length is prepended here.
void WritePacket(cByteBuffer & a_Packet);
/// Adds unencrypted data to the outgoing data buffer
virtual void SendData(const char * a_Data, int a_Size) override;
/// Flushes m_DataToSend through the optional encryption into the outgoing socket data
virtual void Flush(void) override;
} ;
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