cNetwork.h

#pragma once

#include "cPacket.h"
#include "cMessage.h"
#include "cInterface.h"
#include "cThread.h"
#include "cObjectDB.h"
#include "cCharInfo.h"
#include "ChecksumXorGenerator.h"

//Speed Consts
const float sidestep_factor			= 0.5f;
const float backwards_factor		= 0.64999998f;
const float run_turn_factor			= 1.5f;
const float run_anim_speed			= 4.0f;
const float walk_anim_speed			= 3.1199999f;
const float sidestep_anim_speed		= 1.25f;
const float max_sidestep_anim_rate	= 3.0f;

//Server flags
#define SF_CONNECTED (1 << 0)
#define SF_CRCSEEDS (1 << 2)

// timeout and interval settings
// Connection attempt timeout
#define TIMEOUT_MS  1000
// Interval between ack messages sent by us
#define ACK_INTERVAL_MS 2000

//enum OptionalHeaderFlags
//{
//    kDisposable = 0x00000001, // this header may be removed from a retransmission
//    kExclusive = 0x00000002, // a packet with this header has its own sequence number
//    kNotConn = 0x00000004, // this header is sent before connect request/reply handshake completes
//    kTimeSensitive = 0x00000008,
//    kShouldPiggyBack = 0x00000010, // this header should ride along in a packet with others headers and content
//    kHighPriority = 0x00000020,
//    kCountsAsTouch = 0x00000040,
//    kEncrypted = 0x20000000, // a packet with this header has its checksum encrypted
//    kSigned = 0x40000000
//};


/* server authentication type */
enum NetAuthType
{
	kAuthUndef = 0x00000000,
	kAuthAccount = 0x00000001,
	kAuthAccountPassword = 0x00000002,
	kAuthGlsTicket = 0x40000002
};


enum PacketFlags
{
    kRetransmission = 0x00000001,
    kEncryptedChecksum = 0x00000002,
    kBlobFragments = 0x00000004, // Packet contains a fragment of a larger blob. All world packets are blob fragments.
    kServerSwitch = 0x00000100, // CServerSwitchStruct (60, kHighPriority|kCountsAsTouch)
    kLogonServerAddr = 0x00000200, // CLogonRouteHeader (sockaddr_in) (7, kDisposable|kExclusive|kNotConn)
    kEmptyHeader1 = 0x00000400, // EmptyHeader (7, kDisposable|kExclusive|kNotConn)
    kReferral = 0x00000800, // CReferralStruct (40000062, kExclusive|kHighPriority|kCountsAsTouch|kSigned)
    kRequestRetransmit = 0x00001000, // SeqIDList (33, kDisposable|kExclusive|kShouldPiggyBack|kHighPriority)
    kRejectRetransmit = 0x00002000, // SeqIDList (33, kDisposable|kExclusive|kShouldPiggyBack|kHighPriority)
    kAckSequence = 0x00004000, // CPakHeader (unsigned long) (1, kDisposable)
    kDisconnect = 0x00008000, // EmptyHeader (3, kDisposable|kExclusive)
    kLogon = 0x00010000, // CLogonHeader (?)
    kReferred = 0x00020000, // uint64_t (7, kDisposable|kExclusive|kNotConn)
    kConnectRequest = 0x00040000, // CConnectHeader (?)
    kConnectResponse = 0x00080000, // uint64_t (20000007, kDisposable|kExclusive|kNotConn|kEncrypted)
    kNetError1 = 0x00100000, // PackObjHeader<NetError> (7, kDisposable|kExclusive|kNotConn)
    kNetError2 = 0x00200000, // PackObjHeader<NetError> (2, kExclusive)
    kCICMDCommand = 0x00400000, // CICMDCommandStruct (7, kDisposable|kExclusive|kNotConn)
    kTimeSync = 0x01000000, // CTimeSyncHeader (?)
    kEchoRequest = 0x02000000, // CEchoRequestHeader (?)
    kEchoResponse = 0x04000000, // CEchoResponseHeader (?)
    kFlow = 0x08000000  // CFlowStruct (10, kShouldPiggyBack)
};

struct stServerInfo {
	SOCKADDR_IN m_saServer;
	std::list <cPacket *> m_lSentPackets;
	std::list <cMessage *> m_lIncomingMessages;

	DWORD	m_dwSendSequence;
	WORD	m_wLogicalID;
	WORD	m_wTable;

    WORD    m_wBasePort;

    QWORD   m_qwCookie;

	//Tracking our received packets
    // Last received packet sequence number in sequence (does not increment if out of sequence)
	DWORD	m_dwRecvSequence;

	//Logical
	DWORD	m_dwConnectAttempts;

	//Time based stuff
    DWORD   m_dwLastPacketAck;
	DWORD	m_dwLastConnectAttempt;
	DWORD	m_dwLastPacketSent;
	DWORD	m_dwLastPing;
	DWORD	m_dwLastSyncSent;
	DWORD	m_dwLastSyncRecv;
	double	m_flServerTime; //At our last sync, this was the server's time

	//Flags to determine our status/phase
	DWORD	m_dwFlags;

    // the rng used to generate xor values for server packets
    ChecksumXorGenerator *serverXorGen;

    // the rng used to generate xor values for client packets
    ChecksumXorGenerator *clientXorGen;
};

class cNetwork : public cThread {
public:
	cNetwork();
	~cNetwork();

	void SetInterface(cInterface *Interface);
	void SetObjectDB(cObjectDB *ObjectDB);
	void SetCharInfo(cCharInfo *CharInfo);

	void SendLSGameEvent(cPacket *Packet, WORD wGroup);
	void SendWSGameEvent(cPacket *Packet, WORD wGroup);
    void SendLSMessage(cPacket *Packet, WORD wGroup);
	void SendWSMessage(cPacket *Packet, WORD wGroup);
	void SendLSPacket(cPacket *Packet, bool IncludeSeq, bool IncrementSeq);
	void SendPacket(cPacket *Packet, stServerInfo *Target, bool IncludeSeq, bool IncrementSeq);
	void SendLostPacket(int iSendSequence, stServerInfo *Target);
	void SendPacket(cPacket *Packet, stServerInfo *Target);
    
    void SendAckPacket(stServerInfo *Server);

    void ProcessFragment(cByteStream* stream, stServerInfo *Server);
	void ProcessPacket(cPacket *Packet, stServerInfo *Server);
	void ProcessWSPacket(cPacket *Packet, stServerInfo *Server);
	void ProcessMessage(cMessage *Msg, stServerInfo *Server);

	void ServerLoginError(DWORD Error);
	void ServerCharacterError(DWORD Error);
	void ServerCharCreateError(DWORD Error);

	void Run();
	void Stop();

	void CheckPings();
	void PingServer(stServerInfo *Server);
	void SyncServer(stServerInfo *Server);

    void SendDDDInterrogationResponse();
    void SendDDDEndMessage();
	void SendEnterWorldRequest(DWORD GUID);
    void SendEnterWorldMessage(DWORD GUID, char *account);
	void DownloadLandblock(DWORD Landblock);
	void SendPositionUpdate(stLocation *Location, stMoveInfo *MoveInfo);
	void SendAnimUpdate(int iFB, int iStrafe, int iTurn, bool bRunning);
	void SetCombatMode(bool CombatMode);
	void CastSpell(DWORD Target, DWORD Spell);
	void SendAllegianceRecall();
	void SendHouseRecall();
	void SendLifestoneRecall();
	void SendMarketplaceRecall();
	void SendPublicMessage(std::string & Message);
	void SendTell(std::string & Name, std::string & Message);
	void SendTell(DWORD dwGUID, std::string & Message);
	void UseItem(DWORD Item, DWORD Target = 0);
	void SendHouseInfoQuery();
	void RequestAllegianceUpdate();

	void Reset();
	void Connect();
	void Disconnect();
	void CloseConnection(stServerInfo *Server);

	stServerInfo * AddWorldServer(SOCKADDR_IN NewServer);
	void SetActiveWorldServer(SOCKADDR_IN NewServer);
    void DumpWorldServerList();

	void SendMaterialize();

private:
    void SendConnectResponse();
	
	cInterface *m_Interface;
	cObjectDB *m_ObjectDB;
	cCharInfo *m_CharInfo;

	WORD GetTime();

	SOCKET m_sSocket;
	DWORD m_dwStartTicks;
	int iConnPacketCount;

	DWORD m_dwFragmentSequenceOut;
	DWORD m_dwGameEventOut;

	stServerInfo m_siLoginServer;
	std::list <stServerInfo> m_siWorldServers;
	stServerInfo * m_pActiveWorld;

	BYTE m_zTicketSize;
	BYTE m_zTicket[0x100];
	char m_zTicketKey[100];
	char m_zAccountName[40];
	char m_zPassword[100];

    DWORD m_dwGUIDLogin;

	WORD f74ccount;

	bool bPortalMode;

	// Cache Tell ids
	std::map< std::string, DWORD >		m_treeNameIDCache;
};