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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 "Protocol.h"
+#include "../ByteBuffer.h"
+#include "cryptopp/modes.h"
+#include "cryptopp/aes.h"
+
+
+
+
+
+class cProtocol172 :
+ public cProtocol // TODO
+{
+ typedef cProtocol 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;
+
+ /// Sending stuff to clients (alphabetically sorted):
+ virtual void SendAttachEntity (const cEntity & a_Entity, const cEntity * a_Vehicle) override;
+ virtual void SendBlockAction (int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType) override;
+ virtual void SendBlockBreakAnim (int a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage) override;
+ virtual void SendBlockChange (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
+ virtual void SendBlockChanges (int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) override;
+ virtual void SendChat (const AString & a_Message) override;
+ virtual void SendChunkData (int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer) override;
+ virtual void SendCollectPickup (const cPickup & a_Pickup, const cPlayer & a_Player) override;
+ virtual void SendDestroyEntity (const cEntity & a_Entity) override;
+ virtual void SendDisconnect (const AString & a_Reason) override;
+ virtual void SendEditSign (int a_BlockX, int a_BlockY, int a_BlockZ) override; ///< Request the client to open up the sign editor for the sign (1.6+)
+ virtual void SendEntityEquipment (const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) override;
+ virtual void SendEntityHeadLook (const cEntity & a_Entity) override;
+ virtual void SendEntityLook (const cEntity & a_Entity) override;
+ virtual void SendEntityMetadata (const cEntity & a_Entity) override;
+ virtual void SendEntityProperties (const cEntity & a_Entity) override;
+ virtual void SendEntityRelMove (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) override;
+ virtual void SendEntityRelMoveLook (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) override;
+ virtual void SendEntityStatus (const cEntity & a_Entity, char a_Status) override;
+ virtual void SendEntityVelocity (const cEntity & a_Entity) override;
+ virtual void SendExplosion (double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion) override;
+ virtual void SendGameMode (eGameMode a_GameMode) override;
+ virtual void SendHealth (void) override;
+ virtual void SendInventorySlot (char a_WindowID, short a_SlotNum, const cItem & a_Item) override;
+ virtual void SendKeepAlive (int a_PingID) override;
+ virtual void SendLogin (const cPlayer & a_Player, const cWorld & a_World) override;
+ virtual void SendPickupSpawn (const cPickup & a_Pickup) override;
+ virtual void SendPlayerAbilities (void) override;
+ virtual void SendPlayerAnimation (const cPlayer & a_Player, char a_Animation) override;
+ virtual void SendPlayerListItem (const cPlayer & a_Player, bool a_IsOnline) override;
+ virtual void SendPlayerMaxSpeed (void) override;
+ virtual void SendPlayerMoveLook (void) override;
+ virtual void SendPlayerPosition (void) override;
+ virtual void SendPlayerSpawn (const cPlayer & a_Player) override;
+ virtual void SendRespawn (void) override;
+ virtual void SendSoundEffect (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) override; // a_Src coords are Block * 8
+ virtual void SendExperience (void) override;
+ virtual void SendExperienceOrb (const cExpOrb & a_ExpOrb) override;
+ virtual void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) override;
+ virtual void SendSpawnFallingBlock (const cFallingBlock & a_FallingBlock) override;
+ virtual void SendSpawnMob (const cMonster & a_Mob) override;
+ virtual void SendSpawnObject (const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch) override;
+ virtual void SendSpawnVehicle (const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType) override;
+ virtual void SendTabCompletionResults(const AStringVector & a_Results) override;
+ virtual void SendTeleportEntity (const cEntity & a_Entity) override;
+ virtual void SendThunderbolt (int a_BlockX, int a_BlockY, int a_BlockZ) override;
+ virtual void SendTimeUpdate (Int64 a_WorldAge, Int64 a_TimeOfDay) override;
+ virtual void SendUnloadChunk (int a_ChunkX, int a_ChunkZ) override;
+ virtual void SendUpdateSign (int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) override;
+ virtual void SendUseBed (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) override;
+ virtual void SendWeather (eWeather a_Weather) override;
+ virtual void SendWholeInventory (const cWindow & a_Window) override;
+ virtual void SendWindowClose (const cWindow & a_Window) override;
+ virtual void SendWindowOpen (const cWindow & a_Window) override;
+ virtual void SendWindowProperty (const cWindow & a_Window, short a_Property, short a_Value) override;
+
+ virtual AString GetAuthServerID(void) override { return m_AuthServerID; }
+
+protected:
+
+ /// Composes individual packets in the protocol's m_OutPacketBuffer; sends them upon being destructed
+ class cPacketizer
+ {
+ public:
+ cPacketizer(cProtocol172 & a_Protocol, UInt32 a_PacketType) :
+ m_Protocol(a_Protocol),
+ m_Out(a_Protocol.m_OutPacketBuffer),
+ m_Lock(a_Protocol.m_CSPacket)
+ {
+ m_Out.WriteVarInt(a_PacketType);
+ }
+
+ ~cPacketizer();
+
+ void WriteBool(bool a_Value)
+ {
+ m_Out.WriteBool(a_Value);
+ }
+
+ void WriteByte(Byte a_Value)
+ {
+ m_Out.WriteByte(a_Value);
+ }
+
+ void WriteChar(char a_Value)
+ {
+ m_Out.WriteChar(a_Value);
+ }
+
+ void WriteShort(short a_Value)
+ {
+ m_Out.WriteBEShort(a_Value);
+ }
+
+ void WriteInt(int a_Value)
+ {
+ m_Out.WriteBEInt(a_Value);
+ }
+
+ void WriteInt64(Int64 a_Value)
+ {
+ m_Out.WriteBEInt64(a_Value);
+ }
+
+ void WriteFloat(float a_Value)
+ {
+ m_Out.WriteBEFloat(a_Value);
+ }
+
+ void WriteDouble(double a_Value)
+ {
+ m_Out.WriteBEDouble(a_Value);
+ }
+
+ void WriteVarInt(UInt32 a_Value)
+ {
+ m_Out.WriteVarInt(a_Value);
+ }
+
+ void WriteString(const AString & a_Value)
+ {
+ m_Out.WriteVarUTF8String(a_Value);
+ }
+
+ void WriteBuf(const char * a_Data, int a_Size)
+ {
+ m_Out.Write(a_Data, a_Size);
+ }
+
+ void WriteItem(const cItem & a_Item);
+ void WriteByteAngle(double a_Angle); // Writes the specified angle using a single byte
+ void WriteFPInt(double a_Value); // Writes the double value as a 27:5 fixed-point integer
+ void WriteEntityMetadata(const cEntity & a_Entity); // Writes the metadata for the specified entity, not including the terminating 0x7f
+ void WriteMobMetadata(const cMonster & a_Mob); // Writes the mob-specific metadata for the specified mob
+ void WriteEntityProperties(const cEntity & a_Entity); // Writes the entity properties for the specified entity, including the Count field
+
+ protected:
+ cProtocol172 & m_Protocol;
+ cByteBuffer & m_Out;
+ cCSLock m_Lock;
+ } ;
+
+ AString m_ServerAddress;
+
+ UInt16 m_ServerPort;
+
+ AString m_AuthServerID;
+
+ /// State of the protocol. 1 = status, 2 = login, 3 = game
+ UInt32 m_State;
+
+ /// Buffer for the received data
+ cByteBuffer m_ReceivedData;
+
+ /// Buffer for composing the outgoing packets, through cPacketizer
+ cByteBuffer m_OutPacketBuffer;
+
+ /// Buffer for composing packet length (so that each cPacketizer instance doesn't allocate a new cPacketBuffer)
+ cByteBuffer m_OutPacketLenBuffer;
+
+ bool m_IsEncrypted;
+ CryptoPP::CFB_Mode<CryptoPP::AES>::Decryption m_Decryptor;
+ CryptoPP::CFB_Mode<CryptoPP::AES>::Encryption m_Encryptor;
+
+
+ /// 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 HandlePacketStatusPing (UInt32 a_RemainingBytes);
+ void HandlePacketStatusRequest(UInt32 a_RemainingBytes);
+
+ // Packet handlers while in the Login state (m_State == 2):
+ void HandlePacketLoginEncryptionResponse(UInt32 a_RemainingBytes);
+ void HandlePacketLoginStart (UInt32 a_RemainingBytes);
+
+ // Packet handlers while in the Game state (m_State == 3):
+ void HandlePacketAnimation (UInt32 a_RemainingBytes);
+ void HandlePacketBlockDig (UInt32 a_RemainingBytes);
+ void HandlePacketBlockPlace (UInt32 a_RemainingBytes);
+ void HandlePacketChatMessage (UInt32 a_RemainingBytes);
+ void HandlePacketClientSettings (UInt32 a_RemainingBytes);
+ void HandlePacketClientStatus (UInt32 a_RemainingBytes);
+ void HandlePacketCreativeInventoryAction(UInt32 a_RemainingBytes);
+ void HandlePacketEntityAction (UInt32 a_RemainingBytes);
+ void HandlePacketKeepAlive (UInt32 a_RemainingBytes);
+ void HandlePacketPlayer (UInt32 a_RemainingBytes);
+ void HandlePacketPlayerAbilities (UInt32 a_RemainingBytes);
+ void HandlePacketPlayerLook (UInt32 a_RemainingBytes);
+ void HandlePacketPlayerPos (UInt32 a_RemainingBytes);
+ void HandlePacketPlayerPosLook (UInt32 a_RemainingBytes);
+ void HandlePacketPluginMessage (UInt32 a_RemainingBytes);
+ void HandlePacketSlotSelect (UInt32 a_RemainingBytes);
+ void HandlePacketSteerVehicle (UInt32 a_RemainingBytes);
+ void HandlePacketTabComplete (UInt32 a_RemainingBytes);
+ void HandlePacketUpdateSign (UInt32 a_RemainingBytes);
+ void HandlePacketUseEntity (UInt32 a_RemainingBytes);
+ void HandlePacketWindowClick (UInt32 a_RemainingBytes);
+ void HandlePacketWindowClose (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);
+
+ /// Sends the data to the client, encrypting them if needed.
+ virtual void SendData(const char * a_Data, int a_Size) override;
+
+ void SendCompass(const cWorld & a_World);
+
+ /// Reads an item out of the received data, sets a_Item to the values read. Returns false if not enough received data
+ bool ReadItem(cItem & a_Item);
+
+ /// Parses item metadata as read by ReadItem(), into the item enchantments.
+ void ParseItemMetadata(cItem & a_Item, const AString & a_Metadata);
+} ;
+
+
+
+